emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
blob 2c35bed5f10caabb7595ea8162922301763cbdaa 880877 bytes (raw)
name: lisp/org.el 	 # note: path name is non-authoritative(*)
    1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
  113
  114
  115
  116
  117
  118
  119
  120
  121
  122
  123
  124
  125
  126
  127
  128
  129
  130
  131
  132
  133
  134
  135
  136
  137
  138
  139
  140
  141
  142
  143
  144
  145
  146
  147
  148
  149
  150
  151
  152
  153
  154
  155
  156
  157
  158
  159
  160
  161
  162
  163
  164
  165
  166
  167
  168
  169
  170
  171
  172
  173
  174
  175
  176
  177
  178
  179
  180
  181
  182
  183
  184
  185
  186
  187
  188
  189
  190
  191
  192
  193
  194
  195
  196
  197
  198
  199
  200
  201
  202
  203
  204
  205
  206
  207
  208
  209
  210
  211
  212
  213
  214
  215
  216
  217
  218
  219
  220
  221
  222
  223
  224
  225
  226
  227
  228
  229
  230
  231
  232
  233
  234
  235
  236
  237
  238
  239
  240
  241
  242
  243
  244
  245
  246
  247
  248
  249
  250
  251
  252
  253
  254
  255
  256
  257
  258
  259
  260
  261
  262
  263
  264
  265
  266
  267
  268
  269
  270
  271
  272
  273
  274
  275
  276
  277
  278
  279
  280
  281
  282
  283
  284
  285
  286
  287
  288
  289
  290
  291
  292
  293
  294
  295
  296
  297
  298
  299
  300
  301
  302
  303
  304
  305
  306
  307
  308
  309
  310
  311
  312
  313
  314
  315
  316
  317
  318
  319
  320
  321
  322
  323
  324
  325
  326
  327
  328
  329
  330
  331
  332
  333
  334
  335
  336
  337
  338
  339
  340
  341
  342
  343
  344
  345
  346
  347
  348
  349
  350
  351
  352
  353
  354
  355
  356
  357
  358
  359
  360
  361
  362
  363
  364
  365
  366
  367
  368
  369
  370
  371
  372
  373
  374
  375
  376
  377
  378
  379
  380
  381
  382
  383
  384
  385
  386
  387
  388
  389
  390
  391
  392
  393
  394
  395
  396
  397
  398
  399
  400
  401
  402
  403
  404
  405
  406
  407
  408
  409
  410
  411
  412
  413
  414
  415
  416
  417
  418
  419
  420
  421
  422
  423
  424
  425
  426
  427
  428
  429
  430
  431
  432
  433
  434
  435
  436
  437
  438
  439
  440
  441
  442
  443
  444
  445
  446
  447
  448
  449
  450
  451
  452
  453
  454
  455
  456
  457
  458
  459
  460
  461
  462
  463
  464
  465
  466
  467
  468
  469
  470
  471
  472
  473
  474
  475
  476
  477
  478
  479
  480
  481
  482
  483
  484
  485
  486
  487
  488
  489
  490
  491
  492
  493
  494
  495
  496
  497
  498
  499
  500
  501
  502
  503
  504
  505
  506
  507
  508
  509
  510
  511
  512
  513
  514
  515
  516
  517
  518
  519
  520
  521
  522
  523
  524
  525
  526
  527
  528
  529
  530
  531
  532
  533
  534
  535
  536
  537
  538
  539
  540
  541
  542
  543
  544
  545
  546
  547
  548
  549
  550
  551
  552
  553
  554
  555
  556
  557
  558
  559
  560
  561
  562
  563
  564
  565
  566
  567
  568
  569
  570
  571
  572
  573
  574
  575
  576
  577
  578
  579
  580
  581
  582
  583
  584
  585
  586
  587
  588
  589
  590
  591
  592
  593
  594
  595
  596
  597
  598
  599
  600
  601
  602
  603
  604
  605
  606
  607
  608
  609
  610
  611
  612
  613
  614
  615
  616
  617
  618
  619
  620
  621
  622
  623
  624
  625
  626
  627
  628
  629
  630
  631
  632
  633
  634
  635
  636
  637
  638
  639
  640
  641
  642
  643
  644
  645
  646
  647
  648
  649
  650
  651
  652
  653
  654
  655
  656
  657
  658
  659
  660
  661
  662
  663
  664
  665
  666
  667
  668
  669
  670
  671
  672
  673
  674
  675
  676
  677
  678
  679
  680
  681
  682
  683
  684
  685
  686
  687
  688
  689
  690
  691
  692
  693
  694
  695
  696
  697
  698
  699
  700
  701
  702
  703
  704
  705
  706
  707
  708
  709
  710
  711
  712
  713
  714
  715
  716
  717
  718
  719
  720
  721
  722
  723
  724
  725
  726
  727
  728
  729
  730
  731
  732
  733
  734
  735
  736
  737
  738
  739
  740
  741
  742
  743
  744
  745
  746
  747
  748
  749
  750
  751
  752
  753
  754
  755
  756
  757
  758
  759
  760
  761
  762
  763
  764
  765
  766
  767
  768
  769
  770
  771
  772
  773
  774
  775
  776
  777
  778
  779
  780
  781
  782
  783
  784
  785
  786
  787
  788
  789
  790
  791
  792
  793
  794
  795
  796
  797
  798
  799
  800
  801
  802
  803
  804
  805
  806
  807
  808
  809
  810
  811
  812
  813
  814
  815
  816
  817
  818
  819
  820
  821
  822
  823
  824
  825
  826
  827
  828
  829
  830
  831
  832
  833
  834
  835
  836
  837
  838
  839
  840
  841
  842
  843
  844
  845
  846
  847
  848
  849
  850
  851
  852
  853
  854
  855
  856
  857
  858
  859
  860
  861
  862
  863
  864
  865
  866
  867
  868
  869
  870
  871
  872
  873
  874
  875
  876
  877
  878
  879
  880
  881
  882
  883
  884
  885
  886
  887
  888
  889
  890
  891
  892
  893
  894
  895
  896
  897
  898
  899
  900
  901
  902
  903
  904
  905
  906
  907
  908
  909
  910
  911
  912
  913
  914
  915
  916
  917
  918
  919
  920
  921
  922
  923
  924
  925
  926
  927
  928
  929
  930
  931
  932
  933
  934
  935
  936
  937
  938
  939
  940
  941
  942
  943
  944
  945
  946
  947
  948
  949
  950
  951
  952
  953
  954
  955
  956
  957
  958
  959
  960
  961
  962
  963
  964
  965
  966
  967
  968
  969
  970
  971
  972
  973
  974
  975
  976
  977
  978
  979
  980
  981
  982
  983
  984
  985
  986
  987
  988
  989
  990
  991
  992
  993
  994
  995
  996
  997
  998
  999
 1000
 1001
 1002
 1003
 1004
 1005
 1006
 1007
 1008
 1009
 1010
 1011
 1012
 1013
 1014
 1015
 1016
 1017
 1018
 1019
 1020
 1021
 1022
 1023
 1024
 1025
 1026
 1027
 1028
 1029
 1030
 1031
 1032
 1033
 1034
 1035
 1036
 1037
 1038
 1039
 1040
 1041
 1042
 1043
 1044
 1045
 1046
 1047
 1048
 1049
 1050
 1051
 1052
 1053
 1054
 1055
 1056
 1057
 1058
 1059
 1060
 1061
 1062
 1063
 1064
 1065
 1066
 1067
 1068
 1069
 1070
 1071
 1072
 1073
 1074
 1075
 1076
 1077
 1078
 1079
 1080
 1081
 1082
 1083
 1084
 1085
 1086
 1087
 1088
 1089
 1090
 1091
 1092
 1093
 1094
 1095
 1096
 1097
 1098
 1099
 1100
 1101
 1102
 1103
 1104
 1105
 1106
 1107
 1108
 1109
 1110
 1111
 1112
 1113
 1114
 1115
 1116
 1117
 1118
 1119
 1120
 1121
 1122
 1123
 1124
 1125
 1126
 1127
 1128
 1129
 1130
 1131
 1132
 1133
 1134
 1135
 1136
 1137
 1138
 1139
 1140
 1141
 1142
 1143
 1144
 1145
 1146
 1147
 1148
 1149
 1150
 1151
 1152
 1153
 1154
 1155
 1156
 1157
 1158
 1159
 1160
 1161
 1162
 1163
 1164
 1165
 1166
 1167
 1168
 1169
 1170
 1171
 1172
 1173
 1174
 1175
 1176
 1177
 1178
 1179
 1180
 1181
 1182
 1183
 1184
 1185
 1186
 1187
 1188
 1189
 1190
 1191
 1192
 1193
 1194
 1195
 1196
 1197
 1198
 1199
 1200
 1201
 1202
 1203
 1204
 1205
 1206
 1207
 1208
 1209
 1210
 1211
 1212
 1213
 1214
 1215
 1216
 1217
 1218
 1219
 1220
 1221
 1222
 1223
 1224
 1225
 1226
 1227
 1228
 1229
 1230
 1231
 1232
 1233
 1234
 1235
 1236
 1237
 1238
 1239
 1240
 1241
 1242
 1243
 1244
 1245
 1246
 1247
 1248
 1249
 1250
 1251
 1252
 1253
 1254
 1255
 1256
 1257
 1258
 1259
 1260
 1261
 1262
 1263
 1264
 1265
 1266
 1267
 1268
 1269
 1270
 1271
 1272
 1273
 1274
 1275
 1276
 1277
 1278
 1279
 1280
 1281
 1282
 1283
 1284
 1285
 1286
 1287
 1288
 1289
 1290
 1291
 1292
 1293
 1294
 1295
 1296
 1297
 1298
 1299
 1300
 1301
 1302
 1303
 1304
 1305
 1306
 1307
 1308
 1309
 1310
 1311
 1312
 1313
 1314
 1315
 1316
 1317
 1318
 1319
 1320
 1321
 1322
 1323
 1324
 1325
 1326
 1327
 1328
 1329
 1330
 1331
 1332
 1333
 1334
 1335
 1336
 1337
 1338
 1339
 1340
 1341
 1342
 1343
 1344
 1345
 1346
 1347
 1348
 1349
 1350
 1351
 1352
 1353
 1354
 1355
 1356
 1357
 1358
 1359
 1360
 1361
 1362
 1363
 1364
 1365
 1366
 1367
 1368
 1369
 1370
 1371
 1372
 1373
 1374
 1375
 1376
 1377
 1378
 1379
 1380
 1381
 1382
 1383
 1384
 1385
 1386
 1387
 1388
 1389
 1390
 1391
 1392
 1393
 1394
 1395
 1396
 1397
 1398
 1399
 1400
 1401
 1402
 1403
 1404
 1405
 1406
 1407
 1408
 1409
 1410
 1411
 1412
 1413
 1414
 1415
 1416
 1417
 1418
 1419
 1420
 1421
 1422
 1423
 1424
 1425
 1426
 1427
 1428
 1429
 1430
 1431
 1432
 1433
 1434
 1435
 1436
 1437
 1438
 1439
 1440
 1441
 1442
 1443
 1444
 1445
 1446
 1447
 1448
 1449
 1450
 1451
 1452
 1453
 1454
 1455
 1456
 1457
 1458
 1459
 1460
 1461
 1462
 1463
 1464
 1465
 1466
 1467
 1468
 1469
 1470
 1471
 1472
 1473
 1474
 1475
 1476
 1477
 1478
 1479
 1480
 1481
 1482
 1483
 1484
 1485
 1486
 1487
 1488
 1489
 1490
 1491
 1492
 1493
 1494
 1495
 1496
 1497
 1498
 1499
 1500
 1501
 1502
 1503
 1504
 1505
 1506
 1507
 1508
 1509
 1510
 1511
 1512
 1513
 1514
 1515
 1516
 1517
 1518
 1519
 1520
 1521
 1522
 1523
 1524
 1525
 1526
 1527
 1528
 1529
 1530
 1531
 1532
 1533
 1534
 1535
 1536
 1537
 1538
 1539
 1540
 1541
 1542
 1543
 1544
 1545
 1546
 1547
 1548
 1549
 1550
 1551
 1552
 1553
 1554
 1555
 1556
 1557
 1558
 1559
 1560
 1561
 1562
 1563
 1564
 1565
 1566
 1567
 1568
 1569
 1570
 1571
 1572
 1573
 1574
 1575
 1576
 1577
 1578
 1579
 1580
 1581
 1582
 1583
 1584
 1585
 1586
 1587
 1588
 1589
 1590
 1591
 1592
 1593
 1594
 1595
 1596
 1597
 1598
 1599
 1600
 1601
 1602
 1603
 1604
 1605
 1606
 1607
 1608
 1609
 1610
 1611
 1612
 1613
 1614
 1615
 1616
 1617
 1618
 1619
 1620
 1621
 1622
 1623
 1624
 1625
 1626
 1627
 1628
 1629
 1630
 1631
 1632
 1633
 1634
 1635
 1636
 1637
 1638
 1639
 1640
 1641
 1642
 1643
 1644
 1645
 1646
 1647
 1648
 1649
 1650
 1651
 1652
 1653
 1654
 1655
 1656
 1657
 1658
 1659
 1660
 1661
 1662
 1663
 1664
 1665
 1666
 1667
 1668
 1669
 1670
 1671
 1672
 1673
 1674
 1675
 1676
 1677
 1678
 1679
 1680
 1681
 1682
 1683
 1684
 1685
 1686
 1687
 1688
 1689
 1690
 1691
 1692
 1693
 1694
 1695
 1696
 1697
 1698
 1699
 1700
 1701
 1702
 1703
 1704
 1705
 1706
 1707
 1708
 1709
 1710
 1711
 1712
 1713
 1714
 1715
 1716
 1717
 1718
 1719
 1720
 1721
 1722
 1723
 1724
 1725
 1726
 1727
 1728
 1729
 1730
 1731
 1732
 1733
 1734
 1735
 1736
 1737
 1738
 1739
 1740
 1741
 1742
 1743
 1744
 1745
 1746
 1747
 1748
 1749
 1750
 1751
 1752
 1753
 1754
 1755
 1756
 1757
 1758
 1759
 1760
 1761
 1762
 1763
 1764
 1765
 1766
 1767
 1768
 1769
 1770
 1771
 1772
 1773
 1774
 1775
 1776
 1777
 1778
 1779
 1780
 1781
 1782
 1783
 1784
 1785
 1786
 1787
 1788
 1789
 1790
 1791
 1792
 1793
 1794
 1795
 1796
 1797
 1798
 1799
 1800
 1801
 1802
 1803
 1804
 1805
 1806
 1807
 1808
 1809
 1810
 1811
 1812
 1813
 1814
 1815
 1816
 1817
 1818
 1819
 1820
 1821
 1822
 1823
 1824
 1825
 1826
 1827
 1828
 1829
 1830
 1831
 1832
 1833
 1834
 1835
 1836
 1837
 1838
 1839
 1840
 1841
 1842
 1843
 1844
 1845
 1846
 1847
 1848
 1849
 1850
 1851
 1852
 1853
 1854
 1855
 1856
 1857
 1858
 1859
 1860
 1861
 1862
 1863
 1864
 1865
 1866
 1867
 1868
 1869
 1870
 1871
 1872
 1873
 1874
 1875
 1876
 1877
 1878
 1879
 1880
 1881
 1882
 1883
 1884
 1885
 1886
 1887
 1888
 1889
 1890
 1891
 1892
 1893
 1894
 1895
 1896
 1897
 1898
 1899
 1900
 1901
 1902
 1903
 1904
 1905
 1906
 1907
 1908
 1909
 1910
 1911
 1912
 1913
 1914
 1915
 1916
 1917
 1918
 1919
 1920
 1921
 1922
 1923
 1924
 1925
 1926
 1927
 1928
 1929
 1930
 1931
 1932
 1933
 1934
 1935
 1936
 1937
 1938
 1939
 1940
 1941
 1942
 1943
 1944
 1945
 1946
 1947
 1948
 1949
 1950
 1951
 1952
 1953
 1954
 1955
 1956
 1957
 1958
 1959
 1960
 1961
 1962
 1963
 1964
 1965
 1966
 1967
 1968
 1969
 1970
 1971
 1972
 1973
 1974
 1975
 1976
 1977
 1978
 1979
 1980
 1981
 1982
 1983
 1984
 1985
 1986
 1987
 1988
 1989
 1990
 1991
 1992
 1993
 1994
 1995
 1996
 1997
 1998
 1999
 2000
 2001
 2002
 2003
 2004
 2005
 2006
 2007
 2008
 2009
 2010
 2011
 2012
 2013
 2014
 2015
 2016
 2017
 2018
 2019
 2020
 2021
 2022
 2023
 2024
 2025
 2026
 2027
 2028
 2029
 2030
 2031
 2032
 2033
 2034
 2035
 2036
 2037
 2038
 2039
 2040
 2041
 2042
 2043
 2044
 2045
 2046
 2047
 2048
 2049
 2050
 2051
 2052
 2053
 2054
 2055
 2056
 2057
 2058
 2059
 2060
 2061
 2062
 2063
 2064
 2065
 2066
 2067
 2068
 2069
 2070
 2071
 2072
 2073
 2074
 2075
 2076
 2077
 2078
 2079
 2080
 2081
 2082
 2083
 2084
 2085
 2086
 2087
 2088
 2089
 2090
 2091
 2092
 2093
 2094
 2095
 2096
 2097
 2098
 2099
 2100
 2101
 2102
 2103
 2104
 2105
 2106
 2107
 2108
 2109
 2110
 2111
 2112
 2113
 2114
 2115
 2116
 2117
 2118
 2119
 2120
 2121
 2122
 2123
 2124
 2125
 2126
 2127
 2128
 2129
 2130
 2131
 2132
 2133
 2134
 2135
 2136
 2137
 2138
 2139
 2140
 2141
 2142
 2143
 2144
 2145
 2146
 2147
 2148
 2149
 2150
 2151
 2152
 2153
 2154
 2155
 2156
 2157
 2158
 2159
 2160
 2161
 2162
 2163
 2164
 2165
 2166
 2167
 2168
 2169
 2170
 2171
 2172
 2173
 2174
 2175
 2176
 2177
 2178
 2179
 2180
 2181
 2182
 2183
 2184
 2185
 2186
 2187
 2188
 2189
 2190
 2191
 2192
 2193
 2194
 2195
 2196
 2197
 2198
 2199
 2200
 2201
 2202
 2203
 2204
 2205
 2206
 2207
 2208
 2209
 2210
 2211
 2212
 2213
 2214
 2215
 2216
 2217
 2218
 2219
 2220
 2221
 2222
 2223
 2224
 2225
 2226
 2227
 2228
 2229
 2230
 2231
 2232
 2233
 2234
 2235
 2236
 2237
 2238
 2239
 2240
 2241
 2242
 2243
 2244
 2245
 2246
 2247
 2248
 2249
 2250
 2251
 2252
 2253
 2254
 2255
 2256
 2257
 2258
 2259
 2260
 2261
 2262
 2263
 2264
 2265
 2266
 2267
 2268
 2269
 2270
 2271
 2272
 2273
 2274
 2275
 2276
 2277
 2278
 2279
 2280
 2281
 2282
 2283
 2284
 2285
 2286
 2287
 2288
 2289
 2290
 2291
 2292
 2293
 2294
 2295
 2296
 2297
 2298
 2299
 2300
 2301
 2302
 2303
 2304
 2305
 2306
 2307
 2308
 2309
 2310
 2311
 2312
 2313
 2314
 2315
 2316
 2317
 2318
 2319
 2320
 2321
 2322
 2323
 2324
 2325
 2326
 2327
 2328
 2329
 2330
 2331
 2332
 2333
 2334
 2335
 2336
 2337
 2338
 2339
 2340
 2341
 2342
 2343
 2344
 2345
 2346
 2347
 2348
 2349
 2350
 2351
 2352
 2353
 2354
 2355
 2356
 2357
 2358
 2359
 2360
 2361
 2362
 2363
 2364
 2365
 2366
 2367
 2368
 2369
 2370
 2371
 2372
 2373
 2374
 2375
 2376
 2377
 2378
 2379
 2380
 2381
 2382
 2383
 2384
 2385
 2386
 2387
 2388
 2389
 2390
 2391
 2392
 2393
 2394
 2395
 2396
 2397
 2398
 2399
 2400
 2401
 2402
 2403
 2404
 2405
 2406
 2407
 2408
 2409
 2410
 2411
 2412
 2413
 2414
 2415
 2416
 2417
 2418
 2419
 2420
 2421
 2422
 2423
 2424
 2425
 2426
 2427
 2428
 2429
 2430
 2431
 2432
 2433
 2434
 2435
 2436
 2437
 2438
 2439
 2440
 2441
 2442
 2443
 2444
 2445
 2446
 2447
 2448
 2449
 2450
 2451
 2452
 2453
 2454
 2455
 2456
 2457
 2458
 2459
 2460
 2461
 2462
 2463
 2464
 2465
 2466
 2467
 2468
 2469
 2470
 2471
 2472
 2473
 2474
 2475
 2476
 2477
 2478
 2479
 2480
 2481
 2482
 2483
 2484
 2485
 2486
 2487
 2488
 2489
 2490
 2491
 2492
 2493
 2494
 2495
 2496
 2497
 2498
 2499
 2500
 2501
 2502
 2503
 2504
 2505
 2506
 2507
 2508
 2509
 2510
 2511
 2512
 2513
 2514
 2515
 2516
 2517
 2518
 2519
 2520
 2521
 2522
 2523
 2524
 2525
 2526
 2527
 2528
 2529
 2530
 2531
 2532
 2533
 2534
 2535
 2536
 2537
 2538
 2539
 2540
 2541
 2542
 2543
 2544
 2545
 2546
 2547
 2548
 2549
 2550
 2551
 2552
 2553
 2554
 2555
 2556
 2557
 2558
 2559
 2560
 2561
 2562
 2563
 2564
 2565
 2566
 2567
 2568
 2569
 2570
 2571
 2572
 2573
 2574
 2575
 2576
 2577
 2578
 2579
 2580
 2581
 2582
 2583
 2584
 2585
 2586
 2587
 2588
 2589
 2590
 2591
 2592
 2593
 2594
 2595
 2596
 2597
 2598
 2599
 2600
 2601
 2602
 2603
 2604
 2605
 2606
 2607
 2608
 2609
 2610
 2611
 2612
 2613
 2614
 2615
 2616
 2617
 2618
 2619
 2620
 2621
 2622
 2623
 2624
 2625
 2626
 2627
 2628
 2629
 2630
 2631
 2632
 2633
 2634
 2635
 2636
 2637
 2638
 2639
 2640
 2641
 2642
 2643
 2644
 2645
 2646
 2647
 2648
 2649
 2650
 2651
 2652
 2653
 2654
 2655
 2656
 2657
 2658
 2659
 2660
 2661
 2662
 2663
 2664
 2665
 2666
 2667
 2668
 2669
 2670
 2671
 2672
 2673
 2674
 2675
 2676
 2677
 2678
 2679
 2680
 2681
 2682
 2683
 2684
 2685
 2686
 2687
 2688
 2689
 2690
 2691
 2692
 2693
 2694
 2695
 2696
 2697
 2698
 2699
 2700
 2701
 2702
 2703
 2704
 2705
 2706
 2707
 2708
 2709
 2710
 2711
 2712
 2713
 2714
 2715
 2716
 2717
 2718
 2719
 2720
 2721
 2722
 2723
 2724
 2725
 2726
 2727
 2728
 2729
 2730
 2731
 2732
 2733
 2734
 2735
 2736
 2737
 2738
 2739
 2740
 2741
 2742
 2743
 2744
 2745
 2746
 2747
 2748
 2749
 2750
 2751
 2752
 2753
 2754
 2755
 2756
 2757
 2758
 2759
 2760
 2761
 2762
 2763
 2764
 2765
 2766
 2767
 2768
 2769
 2770
 2771
 2772
 2773
 2774
 2775
 2776
 2777
 2778
 2779
 2780
 2781
 2782
 2783
 2784
 2785
 2786
 2787
 2788
 2789
 2790
 2791
 2792
 2793
 2794
 2795
 2796
 2797
 2798
 2799
 2800
 2801
 2802
 2803
 2804
 2805
 2806
 2807
 2808
 2809
 2810
 2811
 2812
 2813
 2814
 2815
 2816
 2817
 2818
 2819
 2820
 2821
 2822
 2823
 2824
 2825
 2826
 2827
 2828
 2829
 2830
 2831
 2832
 2833
 2834
 2835
 2836
 2837
 2838
 2839
 2840
 2841
 2842
 2843
 2844
 2845
 2846
 2847
 2848
 2849
 2850
 2851
 2852
 2853
 2854
 2855
 2856
 2857
 2858
 2859
 2860
 2861
 2862
 2863
 2864
 2865
 2866
 2867
 2868
 2869
 2870
 2871
 2872
 2873
 2874
 2875
 2876
 2877
 2878
 2879
 2880
 2881
 2882
 2883
 2884
 2885
 2886
 2887
 2888
 2889
 2890
 2891
 2892
 2893
 2894
 2895
 2896
 2897
 2898
 2899
 2900
 2901
 2902
 2903
 2904
 2905
 2906
 2907
 2908
 2909
 2910
 2911
 2912
 2913
 2914
 2915
 2916
 2917
 2918
 2919
 2920
 2921
 2922
 2923
 2924
 2925
 2926
 2927
 2928
 2929
 2930
 2931
 2932
 2933
 2934
 2935
 2936
 2937
 2938
 2939
 2940
 2941
 2942
 2943
 2944
 2945
 2946
 2947
 2948
 2949
 2950
 2951
 2952
 2953
 2954
 2955
 2956
 2957
 2958
 2959
 2960
 2961
 2962
 2963
 2964
 2965
 2966
 2967
 2968
 2969
 2970
 2971
 2972
 2973
 2974
 2975
 2976
 2977
 2978
 2979
 2980
 2981
 2982
 2983
 2984
 2985
 2986
 2987
 2988
 2989
 2990
 2991
 2992
 2993
 2994
 2995
 2996
 2997
 2998
 2999
 3000
 3001
 3002
 3003
 3004
 3005
 3006
 3007
 3008
 3009
 3010
 3011
 3012
 3013
 3014
 3015
 3016
 3017
 3018
 3019
 3020
 3021
 3022
 3023
 3024
 3025
 3026
 3027
 3028
 3029
 3030
 3031
 3032
 3033
 3034
 3035
 3036
 3037
 3038
 3039
 3040
 3041
 3042
 3043
 3044
 3045
 3046
 3047
 3048
 3049
 3050
 3051
 3052
 3053
 3054
 3055
 3056
 3057
 3058
 3059
 3060
 3061
 3062
 3063
 3064
 3065
 3066
 3067
 3068
 3069
 3070
 3071
 3072
 3073
 3074
 3075
 3076
 3077
 3078
 3079
 3080
 3081
 3082
 3083
 3084
 3085
 3086
 3087
 3088
 3089
 3090
 3091
 3092
 3093
 3094
 3095
 3096
 3097
 3098
 3099
 3100
 3101
 3102
 3103
 3104
 3105
 3106
 3107
 3108
 3109
 3110
 3111
 3112
 3113
 3114
 3115
 3116
 3117
 3118
 3119
 3120
 3121
 3122
 3123
 3124
 3125
 3126
 3127
 3128
 3129
 3130
 3131
 3132
 3133
 3134
 3135
 3136
 3137
 3138
 3139
 3140
 3141
 3142
 3143
 3144
 3145
 3146
 3147
 3148
 3149
 3150
 3151
 3152
 3153
 3154
 3155
 3156
 3157
 3158
 3159
 3160
 3161
 3162
 3163
 3164
 3165
 3166
 3167
 3168
 3169
 3170
 3171
 3172
 3173
 3174
 3175
 3176
 3177
 3178
 3179
 3180
 3181
 3182
 3183
 3184
 3185
 3186
 3187
 3188
 3189
 3190
 3191
 3192
 3193
 3194
 3195
 3196
 3197
 3198
 3199
 3200
 3201
 3202
 3203
 3204
 3205
 3206
 3207
 3208
 3209
 3210
 3211
 3212
 3213
 3214
 3215
 3216
 3217
 3218
 3219
 3220
 3221
 3222
 3223
 3224
 3225
 3226
 3227
 3228
 3229
 3230
 3231
 3232
 3233
 3234
 3235
 3236
 3237
 3238
 3239
 3240
 3241
 3242
 3243
 3244
 3245
 3246
 3247
 3248
 3249
 3250
 3251
 3252
 3253
 3254
 3255
 3256
 3257
 3258
 3259
 3260
 3261
 3262
 3263
 3264
 3265
 3266
 3267
 3268
 3269
 3270
 3271
 3272
 3273
 3274
 3275
 3276
 3277
 3278
 3279
 3280
 3281
 3282
 3283
 3284
 3285
 3286
 3287
 3288
 3289
 3290
 3291
 3292
 3293
 3294
 3295
 3296
 3297
 3298
 3299
 3300
 3301
 3302
 3303
 3304
 3305
 3306
 3307
 3308
 3309
 3310
 3311
 3312
 3313
 3314
 3315
 3316
 3317
 3318
 3319
 3320
 3321
 3322
 3323
 3324
 3325
 3326
 3327
 3328
 3329
 3330
 3331
 3332
 3333
 3334
 3335
 3336
 3337
 3338
 3339
 3340
 3341
 3342
 3343
 3344
 3345
 3346
 3347
 3348
 3349
 3350
 3351
 3352
 3353
 3354
 3355
 3356
 3357
 3358
 3359
 3360
 3361
 3362
 3363
 3364
 3365
 3366
 3367
 3368
 3369
 3370
 3371
 3372
 3373
 3374
 3375
 3376
 3377
 3378
 3379
 3380
 3381
 3382
 3383
 3384
 3385
 3386
 3387
 3388
 3389
 3390
 3391
 3392
 3393
 3394
 3395
 3396
 3397
 3398
 3399
 3400
 3401
 3402
 3403
 3404
 3405
 3406
 3407
 3408
 3409
 3410
 3411
 3412
 3413
 3414
 3415
 3416
 3417
 3418
 3419
 3420
 3421
 3422
 3423
 3424
 3425
 3426
 3427
 3428
 3429
 3430
 3431
 3432
 3433
 3434
 3435
 3436
 3437
 3438
 3439
 3440
 3441
 3442
 3443
 3444
 3445
 3446
 3447
 3448
 3449
 3450
 3451
 3452
 3453
 3454
 3455
 3456
 3457
 3458
 3459
 3460
 3461
 3462
 3463
 3464
 3465
 3466
 3467
 3468
 3469
 3470
 3471
 3472
 3473
 3474
 3475
 3476
 3477
 3478
 3479
 3480
 3481
 3482
 3483
 3484
 3485
 3486
 3487
 3488
 3489
 3490
 3491
 3492
 3493
 3494
 3495
 3496
 3497
 3498
 3499
 3500
 3501
 3502
 3503
 3504
 3505
 3506
 3507
 3508
 3509
 3510
 3511
 3512
 3513
 3514
 3515
 3516
 3517
 3518
 3519
 3520
 3521
 3522
 3523
 3524
 3525
 3526
 3527
 3528
 3529
 3530
 3531
 3532
 3533
 3534
 3535
 3536
 3537
 3538
 3539
 3540
 3541
 3542
 3543
 3544
 3545
 3546
 3547
 3548
 3549
 3550
 3551
 3552
 3553
 3554
 3555
 3556
 3557
 3558
 3559
 3560
 3561
 3562
 3563
 3564
 3565
 3566
 3567
 3568
 3569
 3570
 3571
 3572
 3573
 3574
 3575
 3576
 3577
 3578
 3579
 3580
 3581
 3582
 3583
 3584
 3585
 3586
 3587
 3588
 3589
 3590
 3591
 3592
 3593
 3594
 3595
 3596
 3597
 3598
 3599
 3600
 3601
 3602
 3603
 3604
 3605
 3606
 3607
 3608
 3609
 3610
 3611
 3612
 3613
 3614
 3615
 3616
 3617
 3618
 3619
 3620
 3621
 3622
 3623
 3624
 3625
 3626
 3627
 3628
 3629
 3630
 3631
 3632
 3633
 3634
 3635
 3636
 3637
 3638
 3639
 3640
 3641
 3642
 3643
 3644
 3645
 3646
 3647
 3648
 3649
 3650
 3651
 3652
 3653
 3654
 3655
 3656
 3657
 3658
 3659
 3660
 3661
 3662
 3663
 3664
 3665
 3666
 3667
 3668
 3669
 3670
 3671
 3672
 3673
 3674
 3675
 3676
 3677
 3678
 3679
 3680
 3681
 3682
 3683
 3684
 3685
 3686
 3687
 3688
 3689
 3690
 3691
 3692
 3693
 3694
 3695
 3696
 3697
 3698
 3699
 3700
 3701
 3702
 3703
 3704
 3705
 3706
 3707
 3708
 3709
 3710
 3711
 3712
 3713
 3714
 3715
 3716
 3717
 3718
 3719
 3720
 3721
 3722
 3723
 3724
 3725
 3726
 3727
 3728
 3729
 3730
 3731
 3732
 3733
 3734
 3735
 3736
 3737
 3738
 3739
 3740
 3741
 3742
 3743
 3744
 3745
 3746
 3747
 3748
 3749
 3750
 3751
 3752
 3753
 3754
 3755
 3756
 3757
 3758
 3759
 3760
 3761
 3762
 3763
 3764
 3765
 3766
 3767
 3768
 3769
 3770
 3771
 3772
 3773
 3774
 3775
 3776
 3777
 3778
 3779
 3780
 3781
 3782
 3783
 3784
 3785
 3786
 3787
 3788
 3789
 3790
 3791
 3792
 3793
 3794
 3795
 3796
 3797
 3798
 3799
 3800
 3801
 3802
 3803
 3804
 3805
 3806
 3807
 3808
 3809
 3810
 3811
 3812
 3813
 3814
 3815
 3816
 3817
 3818
 3819
 3820
 3821
 3822
 3823
 3824
 3825
 3826
 3827
 3828
 3829
 3830
 3831
 3832
 3833
 3834
 3835
 3836
 3837
 3838
 3839
 3840
 3841
 3842
 3843
 3844
 3845
 3846
 3847
 3848
 3849
 3850
 3851
 3852
 3853
 3854
 3855
 3856
 3857
 3858
 3859
 3860
 3861
 3862
 3863
 3864
 3865
 3866
 3867
 3868
 3869
 3870
 3871
 3872
 3873
 3874
 3875
 3876
 3877
 3878
 3879
 3880
 3881
 3882
 3883
 3884
 3885
 3886
 3887
 3888
 3889
 3890
 3891
 3892
 3893
 3894
 3895
 3896
 3897
 3898
 3899
 3900
 3901
 3902
 3903
 3904
 3905
 3906
 3907
 3908
 3909
 3910
 3911
 3912
 3913
 3914
 3915
 3916
 3917
 3918
 3919
 3920
 3921
 3922
 3923
 3924
 3925
 3926
 3927
 3928
 3929
 3930
 3931
 3932
 3933
 3934
 3935
 3936
 3937
 3938
 3939
 3940
 3941
 3942
 3943
 3944
 3945
 3946
 3947
 3948
 3949
 3950
 3951
 3952
 3953
 3954
 3955
 3956
 3957
 3958
 3959
 3960
 3961
 3962
 3963
 3964
 3965
 3966
 3967
 3968
 3969
 3970
 3971
 3972
 3973
 3974
 3975
 3976
 3977
 3978
 3979
 3980
 3981
 3982
 3983
 3984
 3985
 3986
 3987
 3988
 3989
 3990
 3991
 3992
 3993
 3994
 3995
 3996
 3997
 3998
 3999
 4000
 4001
 4002
 4003
 4004
 4005
 4006
 4007
 4008
 4009
 4010
 4011
 4012
 4013
 4014
 4015
 4016
 4017
 4018
 4019
 4020
 4021
 4022
 4023
 4024
 4025
 4026
 4027
 4028
 4029
 4030
 4031
 4032
 4033
 4034
 4035
 4036
 4037
 4038
 4039
 4040
 4041
 4042
 4043
 4044
 4045
 4046
 4047
 4048
 4049
 4050
 4051
 4052
 4053
 4054
 4055
 4056
 4057
 4058
 4059
 4060
 4061
 4062
 4063
 4064
 4065
 4066
 4067
 4068
 4069
 4070
 4071
 4072
 4073
 4074
 4075
 4076
 4077
 4078
 4079
 4080
 4081
 4082
 4083
 4084
 4085
 4086
 4087
 4088
 4089
 4090
 4091
 4092
 4093
 4094
 4095
 4096
 4097
 4098
 4099
 4100
 4101
 4102
 4103
 4104
 4105
 4106
 4107
 4108
 4109
 4110
 4111
 4112
 4113
 4114
 4115
 4116
 4117
 4118
 4119
 4120
 4121
 4122
 4123
 4124
 4125
 4126
 4127
 4128
 4129
 4130
 4131
 4132
 4133
 4134
 4135
 4136
 4137
 4138
 4139
 4140
 4141
 4142
 4143
 4144
 4145
 4146
 4147
 4148
 4149
 4150
 4151
 4152
 4153
 4154
 4155
 4156
 4157
 4158
 4159
 4160
 4161
 4162
 4163
 4164
 4165
 4166
 4167
 4168
 4169
 4170
 4171
 4172
 4173
 4174
 4175
 4176
 4177
 4178
 4179
 4180
 4181
 4182
 4183
 4184
 4185
 4186
 4187
 4188
 4189
 4190
 4191
 4192
 4193
 4194
 4195
 4196
 4197
 4198
 4199
 4200
 4201
 4202
 4203
 4204
 4205
 4206
 4207
 4208
 4209
 4210
 4211
 4212
 4213
 4214
 4215
 4216
 4217
 4218
 4219
 4220
 4221
 4222
 4223
 4224
 4225
 4226
 4227
 4228
 4229
 4230
 4231
 4232
 4233
 4234
 4235
 4236
 4237
 4238
 4239
 4240
 4241
 4242
 4243
 4244
 4245
 4246
 4247
 4248
 4249
 4250
 4251
 4252
 4253
 4254
 4255
 4256
 4257
 4258
 4259
 4260
 4261
 4262
 4263
 4264
 4265
 4266
 4267
 4268
 4269
 4270
 4271
 4272
 4273
 4274
 4275
 4276
 4277
 4278
 4279
 4280
 4281
 4282
 4283
 4284
 4285
 4286
 4287
 4288
 4289
 4290
 4291
 4292
 4293
 4294
 4295
 4296
 4297
 4298
 4299
 4300
 4301
 4302
 4303
 4304
 4305
 4306
 4307
 4308
 4309
 4310
 4311
 4312
 4313
 4314
 4315
 4316
 4317
 4318
 4319
 4320
 4321
 4322
 4323
 4324
 4325
 4326
 4327
 4328
 4329
 4330
 4331
 4332
 4333
 4334
 4335
 4336
 4337
 4338
 4339
 4340
 4341
 4342
 4343
 4344
 4345
 4346
 4347
 4348
 4349
 4350
 4351
 4352
 4353
 4354
 4355
 4356
 4357
 4358
 4359
 4360
 4361
 4362
 4363
 4364
 4365
 4366
 4367
 4368
 4369
 4370
 4371
 4372
 4373
 4374
 4375
 4376
 4377
 4378
 4379
 4380
 4381
 4382
 4383
 4384
 4385
 4386
 4387
 4388
 4389
 4390
 4391
 4392
 4393
 4394
 4395
 4396
 4397
 4398
 4399
 4400
 4401
 4402
 4403
 4404
 4405
 4406
 4407
 4408
 4409
 4410
 4411
 4412
 4413
 4414
 4415
 4416
 4417
 4418
 4419
 4420
 4421
 4422
 4423
 4424
 4425
 4426
 4427
 4428
 4429
 4430
 4431
 4432
 4433
 4434
 4435
 4436
 4437
 4438
 4439
 4440
 4441
 4442
 4443
 4444
 4445
 4446
 4447
 4448
 4449
 4450
 4451
 4452
 4453
 4454
 4455
 4456
 4457
 4458
 4459
 4460
 4461
 4462
 4463
 4464
 4465
 4466
 4467
 4468
 4469
 4470
 4471
 4472
 4473
 4474
 4475
 4476
 4477
 4478
 4479
 4480
 4481
 4482
 4483
 4484
 4485
 4486
 4487
 4488
 4489
 4490
 4491
 4492
 4493
 4494
 4495
 4496
 4497
 4498
 4499
 4500
 4501
 4502
 4503
 4504
 4505
 4506
 4507
 4508
 4509
 4510
 4511
 4512
 4513
 4514
 4515
 4516
 4517
 4518
 4519
 4520
 4521
 4522
 4523
 4524
 4525
 4526
 4527
 4528
 4529
 4530
 4531
 4532
 4533
 4534
 4535
 4536
 4537
 4538
 4539
 4540
 4541
 4542
 4543
 4544
 4545
 4546
 4547
 4548
 4549
 4550
 4551
 4552
 4553
 4554
 4555
 4556
 4557
 4558
 4559
 4560
 4561
 4562
 4563
 4564
 4565
 4566
 4567
 4568
 4569
 4570
 4571
 4572
 4573
 4574
 4575
 4576
 4577
 4578
 4579
 4580
 4581
 4582
 4583
 4584
 4585
 4586
 4587
 4588
 4589
 4590
 4591
 4592
 4593
 4594
 4595
 4596
 4597
 4598
 4599
 4600
 4601
 4602
 4603
 4604
 4605
 4606
 4607
 4608
 4609
 4610
 4611
 4612
 4613
 4614
 4615
 4616
 4617
 4618
 4619
 4620
 4621
 4622
 4623
 4624
 4625
 4626
 4627
 4628
 4629
 4630
 4631
 4632
 4633
 4634
 4635
 4636
 4637
 4638
 4639
 4640
 4641
 4642
 4643
 4644
 4645
 4646
 4647
 4648
 4649
 4650
 4651
 4652
 4653
 4654
 4655
 4656
 4657
 4658
 4659
 4660
 4661
 4662
 4663
 4664
 4665
 4666
 4667
 4668
 4669
 4670
 4671
 4672
 4673
 4674
 4675
 4676
 4677
 4678
 4679
 4680
 4681
 4682
 4683
 4684
 4685
 4686
 4687
 4688
 4689
 4690
 4691
 4692
 4693
 4694
 4695
 4696
 4697
 4698
 4699
 4700
 4701
 4702
 4703
 4704
 4705
 4706
 4707
 4708
 4709
 4710
 4711
 4712
 4713
 4714
 4715
 4716
 4717
 4718
 4719
 4720
 4721
 4722
 4723
 4724
 4725
 4726
 4727
 4728
 4729
 4730
 4731
 4732
 4733
 4734
 4735
 4736
 4737
 4738
 4739
 4740
 4741
 4742
 4743
 4744
 4745
 4746
 4747
 4748
 4749
 4750
 4751
 4752
 4753
 4754
 4755
 4756
 4757
 4758
 4759
 4760
 4761
 4762
 4763
 4764
 4765
 4766
 4767
 4768
 4769
 4770
 4771
 4772
 4773
 4774
 4775
 4776
 4777
 4778
 4779
 4780
 4781
 4782
 4783
 4784
 4785
 4786
 4787
 4788
 4789
 4790
 4791
 4792
 4793
 4794
 4795
 4796
 4797
 4798
 4799
 4800
 4801
 4802
 4803
 4804
 4805
 4806
 4807
 4808
 4809
 4810
 4811
 4812
 4813
 4814
 4815
 4816
 4817
 4818
 4819
 4820
 4821
 4822
 4823
 4824
 4825
 4826
 4827
 4828
 4829
 4830
 4831
 4832
 4833
 4834
 4835
 4836
 4837
 4838
 4839
 4840
 4841
 4842
 4843
 4844
 4845
 4846
 4847
 4848
 4849
 4850
 4851
 4852
 4853
 4854
 4855
 4856
 4857
 4858
 4859
 4860
 4861
 4862
 4863
 4864
 4865
 4866
 4867
 4868
 4869
 4870
 4871
 4872
 4873
 4874
 4875
 4876
 4877
 4878
 4879
 4880
 4881
 4882
 4883
 4884
 4885
 4886
 4887
 4888
 4889
 4890
 4891
 4892
 4893
 4894
 4895
 4896
 4897
 4898
 4899
 4900
 4901
 4902
 4903
 4904
 4905
 4906
 4907
 4908
 4909
 4910
 4911
 4912
 4913
 4914
 4915
 4916
 4917
 4918
 4919
 4920
 4921
 4922
 4923
 4924
 4925
 4926
 4927
 4928
 4929
 4930
 4931
 4932
 4933
 4934
 4935
 4936
 4937
 4938
 4939
 4940
 4941
 4942
 4943
 4944
 4945
 4946
 4947
 4948
 4949
 4950
 4951
 4952
 4953
 4954
 4955
 4956
 4957
 4958
 4959
 4960
 4961
 4962
 4963
 4964
 4965
 4966
 4967
 4968
 4969
 4970
 4971
 4972
 4973
 4974
 4975
 4976
 4977
 4978
 4979
 4980
 4981
 4982
 4983
 4984
 4985
 4986
 4987
 4988
 4989
 4990
 4991
 4992
 4993
 4994
 4995
 4996
 4997
 4998
 4999
 5000
 5001
 5002
 5003
 5004
 5005
 5006
 5007
 5008
 5009
 5010
 5011
 5012
 5013
 5014
 5015
 5016
 5017
 5018
 5019
 5020
 5021
 5022
 5023
 5024
 5025
 5026
 5027
 5028
 5029
 5030
 5031
 5032
 5033
 5034
 5035
 5036
 5037
 5038
 5039
 5040
 5041
 5042
 5043
 5044
 5045
 5046
 5047
 5048
 5049
 5050
 5051
 5052
 5053
 5054
 5055
 5056
 5057
 5058
 5059
 5060
 5061
 5062
 5063
 5064
 5065
 5066
 5067
 5068
 5069
 5070
 5071
 5072
 5073
 5074
 5075
 5076
 5077
 5078
 5079
 5080
 5081
 5082
 5083
 5084
 5085
 5086
 5087
 5088
 5089
 5090
 5091
 5092
 5093
 5094
 5095
 5096
 5097
 5098
 5099
 5100
 5101
 5102
 5103
 5104
 5105
 5106
 5107
 5108
 5109
 5110
 5111
 5112
 5113
 5114
 5115
 5116
 5117
 5118
 5119
 5120
 5121
 5122
 5123
 5124
 5125
 5126
 5127
 5128
 5129
 5130
 5131
 5132
 5133
 5134
 5135
 5136
 5137
 5138
 5139
 5140
 5141
 5142
 5143
 5144
 5145
 5146
 5147
 5148
 5149
 5150
 5151
 5152
 5153
 5154
 5155
 5156
 5157
 5158
 5159
 5160
 5161
 5162
 5163
 5164
 5165
 5166
 5167
 5168
 5169
 5170
 5171
 5172
 5173
 5174
 5175
 5176
 5177
 5178
 5179
 5180
 5181
 5182
 5183
 5184
 5185
 5186
 5187
 5188
 5189
 5190
 5191
 5192
 5193
 5194
 5195
 5196
 5197
 5198
 5199
 5200
 5201
 5202
 5203
 5204
 5205
 5206
 5207
 5208
 5209
 5210
 5211
 5212
 5213
 5214
 5215
 5216
 5217
 5218
 5219
 5220
 5221
 5222
 5223
 5224
 5225
 5226
 5227
 5228
 5229
 5230
 5231
 5232
 5233
 5234
 5235
 5236
 5237
 5238
 5239
 5240
 5241
 5242
 5243
 5244
 5245
 5246
 5247
 5248
 5249
 5250
 5251
 5252
 5253
 5254
 5255
 5256
 5257
 5258
 5259
 5260
 5261
 5262
 5263
 5264
 5265
 5266
 5267
 5268
 5269
 5270
 5271
 5272
 5273
 5274
 5275
 5276
 5277
 5278
 5279
 5280
 5281
 5282
 5283
 5284
 5285
 5286
 5287
 5288
 5289
 5290
 5291
 5292
 5293
 5294
 5295
 5296
 5297
 5298
 5299
 5300
 5301
 5302
 5303
 5304
 5305
 5306
 5307
 5308
 5309
 5310
 5311
 5312
 5313
 5314
 5315
 5316
 5317
 5318
 5319
 5320
 5321
 5322
 5323
 5324
 5325
 5326
 5327
 5328
 5329
 5330
 5331
 5332
 5333
 5334
 5335
 5336
 5337
 5338
 5339
 5340
 5341
 5342
 5343
 5344
 5345
 5346
 5347
 5348
 5349
 5350
 5351
 5352
 5353
 5354
 5355
 5356
 5357
 5358
 5359
 5360
 5361
 5362
 5363
 5364
 5365
 5366
 5367
 5368
 5369
 5370
 5371
 5372
 5373
 5374
 5375
 5376
 5377
 5378
 5379
 5380
 5381
 5382
 5383
 5384
 5385
 5386
 5387
 5388
 5389
 5390
 5391
 5392
 5393
 5394
 5395
 5396
 5397
 5398
 5399
 5400
 5401
 5402
 5403
 5404
 5405
 5406
 5407
 5408
 5409
 5410
 5411
 5412
 5413
 5414
 5415
 5416
 5417
 5418
 5419
 5420
 5421
 5422
 5423
 5424
 5425
 5426
 5427
 5428
 5429
 5430
 5431
 5432
 5433
 5434
 5435
 5436
 5437
 5438
 5439
 5440
 5441
 5442
 5443
 5444
 5445
 5446
 5447
 5448
 5449
 5450
 5451
 5452
 5453
 5454
 5455
 5456
 5457
 5458
 5459
 5460
 5461
 5462
 5463
 5464
 5465
 5466
 5467
 5468
 5469
 5470
 5471
 5472
 5473
 5474
 5475
 5476
 5477
 5478
 5479
 5480
 5481
 5482
 5483
 5484
 5485
 5486
 5487
 5488
 5489
 5490
 5491
 5492
 5493
 5494
 5495
 5496
 5497
 5498
 5499
 5500
 5501
 5502
 5503
 5504
 5505
 5506
 5507
 5508
 5509
 5510
 5511
 5512
 5513
 5514
 5515
 5516
 5517
 5518
 5519
 5520
 5521
 5522
 5523
 5524
 5525
 5526
 5527
 5528
 5529
 5530
 5531
 5532
 5533
 5534
 5535
 5536
 5537
 5538
 5539
 5540
 5541
 5542
 5543
 5544
 5545
 5546
 5547
 5548
 5549
 5550
 5551
 5552
 5553
 5554
 5555
 5556
 5557
 5558
 5559
 5560
 5561
 5562
 5563
 5564
 5565
 5566
 5567
 5568
 5569
 5570
 5571
 5572
 5573
 5574
 5575
 5576
 5577
 5578
 5579
 5580
 5581
 5582
 5583
 5584
 5585
 5586
 5587
 5588
 5589
 5590
 5591
 5592
 5593
 5594
 5595
 5596
 5597
 5598
 5599
 5600
 5601
 5602
 5603
 5604
 5605
 5606
 5607
 5608
 5609
 5610
 5611
 5612
 5613
 5614
 5615
 5616
 5617
 5618
 5619
 5620
 5621
 5622
 5623
 5624
 5625
 5626
 5627
 5628
 5629
 5630
 5631
 5632
 5633
 5634
 5635
 5636
 5637
 5638
 5639
 5640
 5641
 5642
 5643
 5644
 5645
 5646
 5647
 5648
 5649
 5650
 5651
 5652
 5653
 5654
 5655
 5656
 5657
 5658
 5659
 5660
 5661
 5662
 5663
 5664
 5665
 5666
 5667
 5668
 5669
 5670
 5671
 5672
 5673
 5674
 5675
 5676
 5677
 5678
 5679
 5680
 5681
 5682
 5683
 5684
 5685
 5686
 5687
 5688
 5689
 5690
 5691
 5692
 5693
 5694
 5695
 5696
 5697
 5698
 5699
 5700
 5701
 5702
 5703
 5704
 5705
 5706
 5707
 5708
 5709
 5710
 5711
 5712
 5713
 5714
 5715
 5716
 5717
 5718
 5719
 5720
 5721
 5722
 5723
 5724
 5725
 5726
 5727
 5728
 5729
 5730
 5731
 5732
 5733
 5734
 5735
 5736
 5737
 5738
 5739
 5740
 5741
 5742
 5743
 5744
 5745
 5746
 5747
 5748
 5749
 5750
 5751
 5752
 5753
 5754
 5755
 5756
 5757
 5758
 5759
 5760
 5761
 5762
 5763
 5764
 5765
 5766
 5767
 5768
 5769
 5770
 5771
 5772
 5773
 5774
 5775
 5776
 5777
 5778
 5779
 5780
 5781
 5782
 5783
 5784
 5785
 5786
 5787
 5788
 5789
 5790
 5791
 5792
 5793
 5794
 5795
 5796
 5797
 5798
 5799
 5800
 5801
 5802
 5803
 5804
 5805
 5806
 5807
 5808
 5809
 5810
 5811
 5812
 5813
 5814
 5815
 5816
 5817
 5818
 5819
 5820
 5821
 5822
 5823
 5824
 5825
 5826
 5827
 5828
 5829
 5830
 5831
 5832
 5833
 5834
 5835
 5836
 5837
 5838
 5839
 5840
 5841
 5842
 5843
 5844
 5845
 5846
 5847
 5848
 5849
 5850
 5851
 5852
 5853
 5854
 5855
 5856
 5857
 5858
 5859
 5860
 5861
 5862
 5863
 5864
 5865
 5866
 5867
 5868
 5869
 5870
 5871
 5872
 5873
 5874
 5875
 5876
 5877
 5878
 5879
 5880
 5881
 5882
 5883
 5884
 5885
 5886
 5887
 5888
 5889
 5890
 5891
 5892
 5893
 5894
 5895
 5896
 5897
 5898
 5899
 5900
 5901
 5902
 5903
 5904
 5905
 5906
 5907
 5908
 5909
 5910
 5911
 5912
 5913
 5914
 5915
 5916
 5917
 5918
 5919
 5920
 5921
 5922
 5923
 5924
 5925
 5926
 5927
 5928
 5929
 5930
 5931
 5932
 5933
 5934
 5935
 5936
 5937
 5938
 5939
 5940
 5941
 5942
 5943
 5944
 5945
 5946
 5947
 5948
 5949
 5950
 5951
 5952
 5953
 5954
 5955
 5956
 5957
 5958
 5959
 5960
 5961
 5962
 5963
 5964
 5965
 5966
 5967
 5968
 5969
 5970
 5971
 5972
 5973
 5974
 5975
 5976
 5977
 5978
 5979
 5980
 5981
 5982
 5983
 5984
 5985
 5986
 5987
 5988
 5989
 5990
 5991
 5992
 5993
 5994
 5995
 5996
 5997
 5998
 5999
 6000
 6001
 6002
 6003
 6004
 6005
 6006
 6007
 6008
 6009
 6010
 6011
 6012
 6013
 6014
 6015
 6016
 6017
 6018
 6019
 6020
 6021
 6022
 6023
 6024
 6025
 6026
 6027
 6028
 6029
 6030
 6031
 6032
 6033
 6034
 6035
 6036
 6037
 6038
 6039
 6040
 6041
 6042
 6043
 6044
 6045
 6046
 6047
 6048
 6049
 6050
 6051
 6052
 6053
 6054
 6055
 6056
 6057
 6058
 6059
 6060
 6061
 6062
 6063
 6064
 6065
 6066
 6067
 6068
 6069
 6070
 6071
 6072
 6073
 6074
 6075
 6076
 6077
 6078
 6079
 6080
 6081
 6082
 6083
 6084
 6085
 6086
 6087
 6088
 6089
 6090
 6091
 6092
 6093
 6094
 6095
 6096
 6097
 6098
 6099
 6100
 6101
 6102
 6103
 6104
 6105
 6106
 6107
 6108
 6109
 6110
 6111
 6112
 6113
 6114
 6115
 6116
 6117
 6118
 6119
 6120
 6121
 6122
 6123
 6124
 6125
 6126
 6127
 6128
 6129
 6130
 6131
 6132
 6133
 6134
 6135
 6136
 6137
 6138
 6139
 6140
 6141
 6142
 6143
 6144
 6145
 6146
 6147
 6148
 6149
 6150
 6151
 6152
 6153
 6154
 6155
 6156
 6157
 6158
 6159
 6160
 6161
 6162
 6163
 6164
 6165
 6166
 6167
 6168
 6169
 6170
 6171
 6172
 6173
 6174
 6175
 6176
 6177
 6178
 6179
 6180
 6181
 6182
 6183
 6184
 6185
 6186
 6187
 6188
 6189
 6190
 6191
 6192
 6193
 6194
 6195
 6196
 6197
 6198
 6199
 6200
 6201
 6202
 6203
 6204
 6205
 6206
 6207
 6208
 6209
 6210
 6211
 6212
 6213
 6214
 6215
 6216
 6217
 6218
 6219
 6220
 6221
 6222
 6223
 6224
 6225
 6226
 6227
 6228
 6229
 6230
 6231
 6232
 6233
 6234
 6235
 6236
 6237
 6238
 6239
 6240
 6241
 6242
 6243
 6244
 6245
 6246
 6247
 6248
 6249
 6250
 6251
 6252
 6253
 6254
 6255
 6256
 6257
 6258
 6259
 6260
 6261
 6262
 6263
 6264
 6265
 6266
 6267
 6268
 6269
 6270
 6271
 6272
 6273
 6274
 6275
 6276
 6277
 6278
 6279
 6280
 6281
 6282
 6283
 6284
 6285
 6286
 6287
 6288
 6289
 6290
 6291
 6292
 6293
 6294
 6295
 6296
 6297
 6298
 6299
 6300
 6301
 6302
 6303
 6304
 6305
 6306
 6307
 6308
 6309
 6310
 6311
 6312
 6313
 6314
 6315
 6316
 6317
 6318
 6319
 6320
 6321
 6322
 6323
 6324
 6325
 6326
 6327
 6328
 6329
 6330
 6331
 6332
 6333
 6334
 6335
 6336
 6337
 6338
 6339
 6340
 6341
 6342
 6343
 6344
 6345
 6346
 6347
 6348
 6349
 6350
 6351
 6352
 6353
 6354
 6355
 6356
 6357
 6358
 6359
 6360
 6361
 6362
 6363
 6364
 6365
 6366
 6367
 6368
 6369
 6370
 6371
 6372
 6373
 6374
 6375
 6376
 6377
 6378
 6379
 6380
 6381
 6382
 6383
 6384
 6385
 6386
 6387
 6388
 6389
 6390
 6391
 6392
 6393
 6394
 6395
 6396
 6397
 6398
 6399
 6400
 6401
 6402
 6403
 6404
 6405
 6406
 6407
 6408
 6409
 6410
 6411
 6412
 6413
 6414
 6415
 6416
 6417
 6418
 6419
 6420
 6421
 6422
 6423
 6424
 6425
 6426
 6427
 6428
 6429
 6430
 6431
 6432
 6433
 6434
 6435
 6436
 6437
 6438
 6439
 6440
 6441
 6442
 6443
 6444
 6445
 6446
 6447
 6448
 6449
 6450
 6451
 6452
 6453
 6454
 6455
 6456
 6457
 6458
 6459
 6460
 6461
 6462
 6463
 6464
 6465
 6466
 6467
 6468
 6469
 6470
 6471
 6472
 6473
 6474
 6475
 6476
 6477
 6478
 6479
 6480
 6481
 6482
 6483
 6484
 6485
 6486
 6487
 6488
 6489
 6490
 6491
 6492
 6493
 6494
 6495
 6496
 6497
 6498
 6499
 6500
 6501
 6502
 6503
 6504
 6505
 6506
 6507
 6508
 6509
 6510
 6511
 6512
 6513
 6514
 6515
 6516
 6517
 6518
 6519
 6520
 6521
 6522
 6523
 6524
 6525
 6526
 6527
 6528
 6529
 6530
 6531
 6532
 6533
 6534
 6535
 6536
 6537
 6538
 6539
 6540
 6541
 6542
 6543
 6544
 6545
 6546
 6547
 6548
 6549
 6550
 6551
 6552
 6553
 6554
 6555
 6556
 6557
 6558
 6559
 6560
 6561
 6562
 6563
 6564
 6565
 6566
 6567
 6568
 6569
 6570
 6571
 6572
 6573
 6574
 6575
 6576
 6577
 6578
 6579
 6580
 6581
 6582
 6583
 6584
 6585
 6586
 6587
 6588
 6589
 6590
 6591
 6592
 6593
 6594
 6595
 6596
 6597
 6598
 6599
 6600
 6601
 6602
 6603
 6604
 6605
 6606
 6607
 6608
 6609
 6610
 6611
 6612
 6613
 6614
 6615
 6616
 6617
 6618
 6619
 6620
 6621
 6622
 6623
 6624
 6625
 6626
 6627
 6628
 6629
 6630
 6631
 6632
 6633
 6634
 6635
 6636
 6637
 6638
 6639
 6640
 6641
 6642
 6643
 6644
 6645
 6646
 6647
 6648
 6649
 6650
 6651
 6652
 6653
 6654
 6655
 6656
 6657
 6658
 6659
 6660
 6661
 6662
 6663
 6664
 6665
 6666
 6667
 6668
 6669
 6670
 6671
 6672
 6673
 6674
 6675
 6676
 6677
 6678
 6679
 6680
 6681
 6682
 6683
 6684
 6685
 6686
 6687
 6688
 6689
 6690
 6691
 6692
 6693
 6694
 6695
 6696
 6697
 6698
 6699
 6700
 6701
 6702
 6703
 6704
 6705
 6706
 6707
 6708
 6709
 6710
 6711
 6712
 6713
 6714
 6715
 6716
 6717
 6718
 6719
 6720
 6721
 6722
 6723
 6724
 6725
 6726
 6727
 6728
 6729
 6730
 6731
 6732
 6733
 6734
 6735
 6736
 6737
 6738
 6739
 6740
 6741
 6742
 6743
 6744
 6745
 6746
 6747
 6748
 6749
 6750
 6751
 6752
 6753
 6754
 6755
 6756
 6757
 6758
 6759
 6760
 6761
 6762
 6763
 6764
 6765
 6766
 6767
 6768
 6769
 6770
 6771
 6772
 6773
 6774
 6775
 6776
 6777
 6778
 6779
 6780
 6781
 6782
 6783
 6784
 6785
 6786
 6787
 6788
 6789
 6790
 6791
 6792
 6793
 6794
 6795
 6796
 6797
 6798
 6799
 6800
 6801
 6802
 6803
 6804
 6805
 6806
 6807
 6808
 6809
 6810
 6811
 6812
 6813
 6814
 6815
 6816
 6817
 6818
 6819
 6820
 6821
 6822
 6823
 6824
 6825
 6826
 6827
 6828
 6829
 6830
 6831
 6832
 6833
 6834
 6835
 6836
 6837
 6838
 6839
 6840
 6841
 6842
 6843
 6844
 6845
 6846
 6847
 6848
 6849
 6850
 6851
 6852
 6853
 6854
 6855
 6856
 6857
 6858
 6859
 6860
 6861
 6862
 6863
 6864
 6865
 6866
 6867
 6868
 6869
 6870
 6871
 6872
 6873
 6874
 6875
 6876
 6877
 6878
 6879
 6880
 6881
 6882
 6883
 6884
 6885
 6886
 6887
 6888
 6889
 6890
 6891
 6892
 6893
 6894
 6895
 6896
 6897
 6898
 6899
 6900
 6901
 6902
 6903
 6904
 6905
 6906
 6907
 6908
 6909
 6910
 6911
 6912
 6913
 6914
 6915
 6916
 6917
 6918
 6919
 6920
 6921
 6922
 6923
 6924
 6925
 6926
 6927
 6928
 6929
 6930
 6931
 6932
 6933
 6934
 6935
 6936
 6937
 6938
 6939
 6940
 6941
 6942
 6943
 6944
 6945
 6946
 6947
 6948
 6949
 6950
 6951
 6952
 6953
 6954
 6955
 6956
 6957
 6958
 6959
 6960
 6961
 6962
 6963
 6964
 6965
 6966
 6967
 6968
 6969
 6970
 6971
 6972
 6973
 6974
 6975
 6976
 6977
 6978
 6979
 6980
 6981
 6982
 6983
 6984
 6985
 6986
 6987
 6988
 6989
 6990
 6991
 6992
 6993
 6994
 6995
 6996
 6997
 6998
 6999
 7000
 7001
 7002
 7003
 7004
 7005
 7006
 7007
 7008
 7009
 7010
 7011
 7012
 7013
 7014
 7015
 7016
 7017
 7018
 7019
 7020
 7021
 7022
 7023
 7024
 7025
 7026
 7027
 7028
 7029
 7030
 7031
 7032
 7033
 7034
 7035
 7036
 7037
 7038
 7039
 7040
 7041
 7042
 7043
 7044
 7045
 7046
 7047
 7048
 7049
 7050
 7051
 7052
 7053
 7054
 7055
 7056
 7057
 7058
 7059
 7060
 7061
 7062
 7063
 7064
 7065
 7066
 7067
 7068
 7069
 7070
 7071
 7072
 7073
 7074
 7075
 7076
 7077
 7078
 7079
 7080
 7081
 7082
 7083
 7084
 7085
 7086
 7087
 7088
 7089
 7090
 7091
 7092
 7093
 7094
 7095
 7096
 7097
 7098
 7099
 7100
 7101
 7102
 7103
 7104
 7105
 7106
 7107
 7108
 7109
 7110
 7111
 7112
 7113
 7114
 7115
 7116
 7117
 7118
 7119
 7120
 7121
 7122
 7123
 7124
 7125
 7126
 7127
 7128
 7129
 7130
 7131
 7132
 7133
 7134
 7135
 7136
 7137
 7138
 7139
 7140
 7141
 7142
 7143
 7144
 7145
 7146
 7147
 7148
 7149
 7150
 7151
 7152
 7153
 7154
 7155
 7156
 7157
 7158
 7159
 7160
 7161
 7162
 7163
 7164
 7165
 7166
 7167
 7168
 7169
 7170
 7171
 7172
 7173
 7174
 7175
 7176
 7177
 7178
 7179
 7180
 7181
 7182
 7183
 7184
 7185
 7186
 7187
 7188
 7189
 7190
 7191
 7192
 7193
 7194
 7195
 7196
 7197
 7198
 7199
 7200
 7201
 7202
 7203
 7204
 7205
 7206
 7207
 7208
 7209
 7210
 7211
 7212
 7213
 7214
 7215
 7216
 7217
 7218
 7219
 7220
 7221
 7222
 7223
 7224
 7225
 7226
 7227
 7228
 7229
 7230
 7231
 7232
 7233
 7234
 7235
 7236
 7237
 7238
 7239
 7240
 7241
 7242
 7243
 7244
 7245
 7246
 7247
 7248
 7249
 7250
 7251
 7252
 7253
 7254
 7255
 7256
 7257
 7258
 7259
 7260
 7261
 7262
 7263
 7264
 7265
 7266
 7267
 7268
 7269
 7270
 7271
 7272
 7273
 7274
 7275
 7276
 7277
 7278
 7279
 7280
 7281
 7282
 7283
 7284
 7285
 7286
 7287
 7288
 7289
 7290
 7291
 7292
 7293
 7294
 7295
 7296
 7297
 7298
 7299
 7300
 7301
 7302
 7303
 7304
 7305
 7306
 7307
 7308
 7309
 7310
 7311
 7312
 7313
 7314
 7315
 7316
 7317
 7318
 7319
 7320
 7321
 7322
 7323
 7324
 7325
 7326
 7327
 7328
 7329
 7330
 7331
 7332
 7333
 7334
 7335
 7336
 7337
 7338
 7339
 7340
 7341
 7342
 7343
 7344
 7345
 7346
 7347
 7348
 7349
 7350
 7351
 7352
 7353
 7354
 7355
 7356
 7357
 7358
 7359
 7360
 7361
 7362
 7363
 7364
 7365
 7366
 7367
 7368
 7369
 7370
 7371
 7372
 7373
 7374
 7375
 7376
 7377
 7378
 7379
 7380
 7381
 7382
 7383
 7384
 7385
 7386
 7387
 7388
 7389
 7390
 7391
 7392
 7393
 7394
 7395
 7396
 7397
 7398
 7399
 7400
 7401
 7402
 7403
 7404
 7405
 7406
 7407
 7408
 7409
 7410
 7411
 7412
 7413
 7414
 7415
 7416
 7417
 7418
 7419
 7420
 7421
 7422
 7423
 7424
 7425
 7426
 7427
 7428
 7429
 7430
 7431
 7432
 7433
 7434
 7435
 7436
 7437
 7438
 7439
 7440
 7441
 7442
 7443
 7444
 7445
 7446
 7447
 7448
 7449
 7450
 7451
 7452
 7453
 7454
 7455
 7456
 7457
 7458
 7459
 7460
 7461
 7462
 7463
 7464
 7465
 7466
 7467
 7468
 7469
 7470
 7471
 7472
 7473
 7474
 7475
 7476
 7477
 7478
 7479
 7480
 7481
 7482
 7483
 7484
 7485
 7486
 7487
 7488
 7489
 7490
 7491
 7492
 7493
 7494
 7495
 7496
 7497
 7498
 7499
 7500
 7501
 7502
 7503
 7504
 7505
 7506
 7507
 7508
 7509
 7510
 7511
 7512
 7513
 7514
 7515
 7516
 7517
 7518
 7519
 7520
 7521
 7522
 7523
 7524
 7525
 7526
 7527
 7528
 7529
 7530
 7531
 7532
 7533
 7534
 7535
 7536
 7537
 7538
 7539
 7540
 7541
 7542
 7543
 7544
 7545
 7546
 7547
 7548
 7549
 7550
 7551
 7552
 7553
 7554
 7555
 7556
 7557
 7558
 7559
 7560
 7561
 7562
 7563
 7564
 7565
 7566
 7567
 7568
 7569
 7570
 7571
 7572
 7573
 7574
 7575
 7576
 7577
 7578
 7579
 7580
 7581
 7582
 7583
 7584
 7585
 7586
 7587
 7588
 7589
 7590
 7591
 7592
 7593
 7594
 7595
 7596
 7597
 7598
 7599
 7600
 7601
 7602
 7603
 7604
 7605
 7606
 7607
 7608
 7609
 7610
 7611
 7612
 7613
 7614
 7615
 7616
 7617
 7618
 7619
 7620
 7621
 7622
 7623
 7624
 7625
 7626
 7627
 7628
 7629
 7630
 7631
 7632
 7633
 7634
 7635
 7636
 7637
 7638
 7639
 7640
 7641
 7642
 7643
 7644
 7645
 7646
 7647
 7648
 7649
 7650
 7651
 7652
 7653
 7654
 7655
 7656
 7657
 7658
 7659
 7660
 7661
 7662
 7663
 7664
 7665
 7666
 7667
 7668
 7669
 7670
 7671
 7672
 7673
 7674
 7675
 7676
 7677
 7678
 7679
 7680
 7681
 7682
 7683
 7684
 7685
 7686
 7687
 7688
 7689
 7690
 7691
 7692
 7693
 7694
 7695
 7696
 7697
 7698
 7699
 7700
 7701
 7702
 7703
 7704
 7705
 7706
 7707
 7708
 7709
 7710
 7711
 7712
 7713
 7714
 7715
 7716
 7717
 7718
 7719
 7720
 7721
 7722
 7723
 7724
 7725
 7726
 7727
 7728
 7729
 7730
 7731
 7732
 7733
 7734
 7735
 7736
 7737
 7738
 7739
 7740
 7741
 7742
 7743
 7744
 7745
 7746
 7747
 7748
 7749
 7750
 7751
 7752
 7753
 7754
 7755
 7756
 7757
 7758
 7759
 7760
 7761
 7762
 7763
 7764
 7765
 7766
 7767
 7768
 7769
 7770
 7771
 7772
 7773
 7774
 7775
 7776
 7777
 7778
 7779
 7780
 7781
 7782
 7783
 7784
 7785
 7786
 7787
 7788
 7789
 7790
 7791
 7792
 7793
 7794
 7795
 7796
 7797
 7798
 7799
 7800
 7801
 7802
 7803
 7804
 7805
 7806
 7807
 7808
 7809
 7810
 7811
 7812
 7813
 7814
 7815
 7816
 7817
 7818
 7819
 7820
 7821
 7822
 7823
 7824
 7825
 7826
 7827
 7828
 7829
 7830
 7831
 7832
 7833
 7834
 7835
 7836
 7837
 7838
 7839
 7840
 7841
 7842
 7843
 7844
 7845
 7846
 7847
 7848
 7849
 7850
 7851
 7852
 7853
 7854
 7855
 7856
 7857
 7858
 7859
 7860
 7861
 7862
 7863
 7864
 7865
 7866
 7867
 7868
 7869
 7870
 7871
 7872
 7873
 7874
 7875
 7876
 7877
 7878
 7879
 7880
 7881
 7882
 7883
 7884
 7885
 7886
 7887
 7888
 7889
 7890
 7891
 7892
 7893
 7894
 7895
 7896
 7897
 7898
 7899
 7900
 7901
 7902
 7903
 7904
 7905
 7906
 7907
 7908
 7909
 7910
 7911
 7912
 7913
 7914
 7915
 7916
 7917
 7918
 7919
 7920
 7921
 7922
 7923
 7924
 7925
 7926
 7927
 7928
 7929
 7930
 7931
 7932
 7933
 7934
 7935
 7936
 7937
 7938
 7939
 7940
 7941
 7942
 7943
 7944
 7945
 7946
 7947
 7948
 7949
 7950
 7951
 7952
 7953
 7954
 7955
 7956
 7957
 7958
 7959
 7960
 7961
 7962
 7963
 7964
 7965
 7966
 7967
 7968
 7969
 7970
 7971
 7972
 7973
 7974
 7975
 7976
 7977
 7978
 7979
 7980
 7981
 7982
 7983
 7984
 7985
 7986
 7987
 7988
 7989
 7990
 7991
 7992
 7993
 7994
 7995
 7996
 7997
 7998
 7999
 8000
 8001
 8002
 8003
 8004
 8005
 8006
 8007
 8008
 8009
 8010
 8011
 8012
 8013
 8014
 8015
 8016
 8017
 8018
 8019
 8020
 8021
 8022
 8023
 8024
 8025
 8026
 8027
 8028
 8029
 8030
 8031
 8032
 8033
 8034
 8035
 8036
 8037
 8038
 8039
 8040
 8041
 8042
 8043
 8044
 8045
 8046
 8047
 8048
 8049
 8050
 8051
 8052
 8053
 8054
 8055
 8056
 8057
 8058
 8059
 8060
 8061
 8062
 8063
 8064
 8065
 8066
 8067
 8068
 8069
 8070
 8071
 8072
 8073
 8074
 8075
 8076
 8077
 8078
 8079
 8080
 8081
 8082
 8083
 8084
 8085
 8086
 8087
 8088
 8089
 8090
 8091
 8092
 8093
 8094
 8095
 8096
 8097
 8098
 8099
 8100
 8101
 8102
 8103
 8104
 8105
 8106
 8107
 8108
 8109
 8110
 8111
 8112
 8113
 8114
 8115
 8116
 8117
 8118
 8119
 8120
 8121
 8122
 8123
 8124
 8125
 8126
 8127
 8128
 8129
 8130
 8131
 8132
 8133
 8134
 8135
 8136
 8137
 8138
 8139
 8140
 8141
 8142
 8143
 8144
 8145
 8146
 8147
 8148
 8149
 8150
 8151
 8152
 8153
 8154
 8155
 8156
 8157
 8158
 8159
 8160
 8161
 8162
 8163
 8164
 8165
 8166
 8167
 8168
 8169
 8170
 8171
 8172
 8173
 8174
 8175
 8176
 8177
 8178
 8179
 8180
 8181
 8182
 8183
 8184
 8185
 8186
 8187
 8188
 8189
 8190
 8191
 8192
 8193
 8194
 8195
 8196
 8197
 8198
 8199
 8200
 8201
 8202
 8203
 8204
 8205
 8206
 8207
 8208
 8209
 8210
 8211
 8212
 8213
 8214
 8215
 8216
 8217
 8218
 8219
 8220
 8221
 8222
 8223
 8224
 8225
 8226
 8227
 8228
 8229
 8230
 8231
 8232
 8233
 8234
 8235
 8236
 8237
 8238
 8239
 8240
 8241
 8242
 8243
 8244
 8245
 8246
 8247
 8248
 8249
 8250
 8251
 8252
 8253
 8254
 8255
 8256
 8257
 8258
 8259
 8260
 8261
 8262
 8263
 8264
 8265
 8266
 8267
 8268
 8269
 8270
 8271
 8272
 8273
 8274
 8275
 8276
 8277
 8278
 8279
 8280
 8281
 8282
 8283
 8284
 8285
 8286
 8287
 8288
 8289
 8290
 8291
 8292
 8293
 8294
 8295
 8296
 8297
 8298
 8299
 8300
 8301
 8302
 8303
 8304
 8305
 8306
 8307
 8308
 8309
 8310
 8311
 8312
 8313
 8314
 8315
 8316
 8317
 8318
 8319
 8320
 8321
 8322
 8323
 8324
 8325
 8326
 8327
 8328
 8329
 8330
 8331
 8332
 8333
 8334
 8335
 8336
 8337
 8338
 8339
 8340
 8341
 8342
 8343
 8344
 8345
 8346
 8347
 8348
 8349
 8350
 8351
 8352
 8353
 8354
 8355
 8356
 8357
 8358
 8359
 8360
 8361
 8362
 8363
 8364
 8365
 8366
 8367
 8368
 8369
 8370
 8371
 8372
 8373
 8374
 8375
 8376
 8377
 8378
 8379
 8380
 8381
 8382
 8383
 8384
 8385
 8386
 8387
 8388
 8389
 8390
 8391
 8392
 8393
 8394
 8395
 8396
 8397
 8398
 8399
 8400
 8401
 8402
 8403
 8404
 8405
 8406
 8407
 8408
 8409
 8410
 8411
 8412
 8413
 8414
 8415
 8416
 8417
 8418
 8419
 8420
 8421
 8422
 8423
 8424
 8425
 8426
 8427
 8428
 8429
 8430
 8431
 8432
 8433
 8434
 8435
 8436
 8437
 8438
 8439
 8440
 8441
 8442
 8443
 8444
 8445
 8446
 8447
 8448
 8449
 8450
 8451
 8452
 8453
 8454
 8455
 8456
 8457
 8458
 8459
 8460
 8461
 8462
 8463
 8464
 8465
 8466
 8467
 8468
 8469
 8470
 8471
 8472
 8473
 8474
 8475
 8476
 8477
 8478
 8479
 8480
 8481
 8482
 8483
 8484
 8485
 8486
 8487
 8488
 8489
 8490
 8491
 8492
 8493
 8494
 8495
 8496
 8497
 8498
 8499
 8500
 8501
 8502
 8503
 8504
 8505
 8506
 8507
 8508
 8509
 8510
 8511
 8512
 8513
 8514
 8515
 8516
 8517
 8518
 8519
 8520
 8521
 8522
 8523
 8524
 8525
 8526
 8527
 8528
 8529
 8530
 8531
 8532
 8533
 8534
 8535
 8536
 8537
 8538
 8539
 8540
 8541
 8542
 8543
 8544
 8545
 8546
 8547
 8548
 8549
 8550
 8551
 8552
 8553
 8554
 8555
 8556
 8557
 8558
 8559
 8560
 8561
 8562
 8563
 8564
 8565
 8566
 8567
 8568
 8569
 8570
 8571
 8572
 8573
 8574
 8575
 8576
 8577
 8578
 8579
 8580
 8581
 8582
 8583
 8584
 8585
 8586
 8587
 8588
 8589
 8590
 8591
 8592
 8593
 8594
 8595
 8596
 8597
 8598
 8599
 8600
 8601
 8602
 8603
 8604
 8605
 8606
 8607
 8608
 8609
 8610
 8611
 8612
 8613
 8614
 8615
 8616
 8617
 8618
 8619
 8620
 8621
 8622
 8623
 8624
 8625
 8626
 8627
 8628
 8629
 8630
 8631
 8632
 8633
 8634
 8635
 8636
 8637
 8638
 8639
 8640
 8641
 8642
 8643
 8644
 8645
 8646
 8647
 8648
 8649
 8650
 8651
 8652
 8653
 8654
 8655
 8656
 8657
 8658
 8659
 8660
 8661
 8662
 8663
 8664
 8665
 8666
 8667
 8668
 8669
 8670
 8671
 8672
 8673
 8674
 8675
 8676
 8677
 8678
 8679
 8680
 8681
 8682
 8683
 8684
 8685
 8686
 8687
 8688
 8689
 8690
 8691
 8692
 8693
 8694
 8695
 8696
 8697
 8698
 8699
 8700
 8701
 8702
 8703
 8704
 8705
 8706
 8707
 8708
 8709
 8710
 8711
 8712
 8713
 8714
 8715
 8716
 8717
 8718
 8719
 8720
 8721
 8722
 8723
 8724
 8725
 8726
 8727
 8728
 8729
 8730
 8731
 8732
 8733
 8734
 8735
 8736
 8737
 8738
 8739
 8740
 8741
 8742
 8743
 8744
 8745
 8746
 8747
 8748
 8749
 8750
 8751
 8752
 8753
 8754
 8755
 8756
 8757
 8758
 8759
 8760
 8761
 8762
 8763
 8764
 8765
 8766
 8767
 8768
 8769
 8770
 8771
 8772
 8773
 8774
 8775
 8776
 8777
 8778
 8779
 8780
 8781
 8782
 8783
 8784
 8785
 8786
 8787
 8788
 8789
 8790
 8791
 8792
 8793
 8794
 8795
 8796
 8797
 8798
 8799
 8800
 8801
 8802
 8803
 8804
 8805
 8806
 8807
 8808
 8809
 8810
 8811
 8812
 8813
 8814
 8815
 8816
 8817
 8818
 8819
 8820
 8821
 8822
 8823
 8824
 8825
 8826
 8827
 8828
 8829
 8830
 8831
 8832
 8833
 8834
 8835
 8836
 8837
 8838
 8839
 8840
 8841
 8842
 8843
 8844
 8845
 8846
 8847
 8848
 8849
 8850
 8851
 8852
 8853
 8854
 8855
 8856
 8857
 8858
 8859
 8860
 8861
 8862
 8863
 8864
 8865
 8866
 8867
 8868
 8869
 8870
 8871
 8872
 8873
 8874
 8875
 8876
 8877
 8878
 8879
 8880
 8881
 8882
 8883
 8884
 8885
 8886
 8887
 8888
 8889
 8890
 8891
 8892
 8893
 8894
 8895
 8896
 8897
 8898
 8899
 8900
 8901
 8902
 8903
 8904
 8905
 8906
 8907
 8908
 8909
 8910
 8911
 8912
 8913
 8914
 8915
 8916
 8917
 8918
 8919
 8920
 8921
 8922
 8923
 8924
 8925
 8926
 8927
 8928
 8929
 8930
 8931
 8932
 8933
 8934
 8935
 8936
 8937
 8938
 8939
 8940
 8941
 8942
 8943
 8944
 8945
 8946
 8947
 8948
 8949
 8950
 8951
 8952
 8953
 8954
 8955
 8956
 8957
 8958
 8959
 8960
 8961
 8962
 8963
 8964
 8965
 8966
 8967
 8968
 8969
 8970
 8971
 8972
 8973
 8974
 8975
 8976
 8977
 8978
 8979
 8980
 8981
 8982
 8983
 8984
 8985
 8986
 8987
 8988
 8989
 8990
 8991
 8992
 8993
 8994
 8995
 8996
 8997
 8998
 8999
 9000
 9001
 9002
 9003
 9004
 9005
 9006
 9007
 9008
 9009
 9010
 9011
 9012
 9013
 9014
 9015
 9016
 9017
 9018
 9019
 9020
 9021
 9022
 9023
 9024
 9025
 9026
 9027
 9028
 9029
 9030
 9031
 9032
 9033
 9034
 9035
 9036
 9037
 9038
 9039
 9040
 9041
 9042
 9043
 9044
 9045
 9046
 9047
 9048
 9049
 9050
 9051
 9052
 9053
 9054
 9055
 9056
 9057
 9058
 9059
 9060
 9061
 9062
 9063
 9064
 9065
 9066
 9067
 9068
 9069
 9070
 9071
 9072
 9073
 9074
 9075
 9076
 9077
 9078
 9079
 9080
 9081
 9082
 9083
 9084
 9085
 9086
 9087
 9088
 9089
 9090
 9091
 9092
 9093
 9094
 9095
 9096
 9097
 9098
 9099
 9100
 9101
 9102
 9103
 9104
 9105
 9106
 9107
 9108
 9109
 9110
 9111
 9112
 9113
 9114
 9115
 9116
 9117
 9118
 9119
 9120
 9121
 9122
 9123
 9124
 9125
 9126
 9127
 9128
 9129
 9130
 9131
 9132
 9133
 9134
 9135
 9136
 9137
 9138
 9139
 9140
 9141
 9142
 9143
 9144
 9145
 9146
 9147
 9148
 9149
 9150
 9151
 9152
 9153
 9154
 9155
 9156
 9157
 9158
 9159
 9160
 9161
 9162
 9163
 9164
 9165
 9166
 9167
 9168
 9169
 9170
 9171
 9172
 9173
 9174
 9175
 9176
 9177
 9178
 9179
 9180
 9181
 9182
 9183
 9184
 9185
 9186
 9187
 9188
 9189
 9190
 9191
 9192
 9193
 9194
 9195
 9196
 9197
 9198
 9199
 9200
 9201
 9202
 9203
 9204
 9205
 9206
 9207
 9208
 9209
 9210
 9211
 9212
 9213
 9214
 9215
 9216
 9217
 9218
 9219
 9220
 9221
 9222
 9223
 9224
 9225
 9226
 9227
 9228
 9229
 9230
 9231
 9232
 9233
 9234
 9235
 9236
 9237
 9238
 9239
 9240
 9241
 9242
 9243
 9244
 9245
 9246
 9247
 9248
 9249
 9250
 9251
 9252
 9253
 9254
 9255
 9256
 9257
 9258
 9259
 9260
 9261
 9262
 9263
 9264
 9265
 9266
 9267
 9268
 9269
 9270
 9271
 9272
 9273
 9274
 9275
 9276
 9277
 9278
 9279
 9280
 9281
 9282
 9283
 9284
 9285
 9286
 9287
 9288
 9289
 9290
 9291
 9292
 9293
 9294
 9295
 9296
 9297
 9298
 9299
 9300
 9301
 9302
 9303
 9304
 9305
 9306
 9307
 9308
 9309
 9310
 9311
 9312
 9313
 9314
 9315
 9316
 9317
 9318
 9319
 9320
 9321
 9322
 9323
 9324
 9325
 9326
 9327
 9328
 9329
 9330
 9331
 9332
 9333
 9334
 9335
 9336
 9337
 9338
 9339
 9340
 9341
 9342
 9343
 9344
 9345
 9346
 9347
 9348
 9349
 9350
 9351
 9352
 9353
 9354
 9355
 9356
 9357
 9358
 9359
 9360
 9361
 9362
 9363
 9364
 9365
 9366
 9367
 9368
 9369
 9370
 9371
 9372
 9373
 9374
 9375
 9376
 9377
 9378
 9379
 9380
 9381
 9382
 9383
 9384
 9385
 9386
 9387
 9388
 9389
 9390
 9391
 9392
 9393
 9394
 9395
 9396
 9397
 9398
 9399
 9400
 9401
 9402
 9403
 9404
 9405
 9406
 9407
 9408
 9409
 9410
 9411
 9412
 9413
 9414
 9415
 9416
 9417
 9418
 9419
 9420
 9421
 9422
 9423
 9424
 9425
 9426
 9427
 9428
 9429
 9430
 9431
 9432
 9433
 9434
 9435
 9436
 9437
 9438
 9439
 9440
 9441
 9442
 9443
 9444
 9445
 9446
 9447
 9448
 9449
 9450
 9451
 9452
 9453
 9454
 9455
 9456
 9457
 9458
 9459
 9460
 9461
 9462
 9463
 9464
 9465
 9466
 9467
 9468
 9469
 9470
 9471
 9472
 9473
 9474
 9475
 9476
 9477
 9478
 9479
 9480
 9481
 9482
 9483
 9484
 9485
 9486
 9487
 9488
 9489
 9490
 9491
 9492
 9493
 9494
 9495
 9496
 9497
 9498
 9499
 9500
 9501
 9502
 9503
 9504
 9505
 9506
 9507
 9508
 9509
 9510
 9511
 9512
 9513
 9514
 9515
 9516
 9517
 9518
 9519
 9520
 9521
 9522
 9523
 9524
 9525
 9526
 9527
 9528
 9529
 9530
 9531
 9532
 9533
 9534
 9535
 9536
 9537
 9538
 9539
 9540
 9541
 9542
 9543
 9544
 9545
 9546
 9547
 9548
 9549
 9550
 9551
 9552
 9553
 9554
 9555
 9556
 9557
 9558
 9559
 9560
 9561
 9562
 9563
 9564
 9565
 9566
 9567
 9568
 9569
 9570
 9571
 9572
 9573
 9574
 9575
 9576
 9577
 9578
 9579
 9580
 9581
 9582
 9583
 9584
 9585
 9586
 9587
 9588
 9589
 9590
 9591
 9592
 9593
 9594
 9595
 9596
 9597
 9598
 9599
 9600
 9601
 9602
 9603
 9604
 9605
 9606
 9607
 9608
 9609
 9610
 9611
 9612
 9613
 9614
 9615
 9616
 9617
 9618
 9619
 9620
 9621
 9622
 9623
 9624
 9625
 9626
 9627
 9628
 9629
 9630
 9631
 9632
 9633
 9634
 9635
 9636
 9637
 9638
 9639
 9640
 9641
 9642
 9643
 9644
 9645
 9646
 9647
 9648
 9649
 9650
 9651
 9652
 9653
 9654
 9655
 9656
 9657
 9658
 9659
 9660
 9661
 9662
 9663
 9664
 9665
 9666
 9667
 9668
 9669
 9670
 9671
 9672
 9673
 9674
 9675
 9676
 9677
 9678
 9679
 9680
 9681
 9682
 9683
 9684
 9685
 9686
 9687
 9688
 9689
 9690
 9691
 9692
 9693
 9694
 9695
 9696
 9697
 9698
 9699
 9700
 9701
 9702
 9703
 9704
 9705
 9706
 9707
 9708
 9709
 9710
 9711
 9712
 9713
 9714
 9715
 9716
 9717
 9718
 9719
 9720
 9721
 9722
 9723
 9724
 9725
 9726
 9727
 9728
 9729
 9730
 9731
 9732
 9733
 9734
 9735
 9736
 9737
 9738
 9739
 9740
 9741
 9742
 9743
 9744
 9745
 9746
 9747
 9748
 9749
 9750
 9751
 9752
 9753
 9754
 9755
 9756
 9757
 9758
 9759
 9760
 9761
 9762
 9763
 9764
 9765
 9766
 9767
 9768
 9769
 9770
 9771
 9772
 9773
 9774
 9775
 9776
 9777
 9778
 9779
 9780
 9781
 9782
 9783
 9784
 9785
 9786
 9787
 9788
 9789
 9790
 9791
 9792
 9793
 9794
 9795
 9796
 9797
 9798
 9799
 9800
 9801
 9802
 9803
 9804
 9805
 9806
 9807
 9808
 9809
 9810
 9811
 9812
 9813
 9814
 9815
 9816
 9817
 9818
 9819
 9820
 9821
 9822
 9823
 9824
 9825
 9826
 9827
 9828
 9829
 9830
 9831
 9832
 9833
 9834
 9835
 9836
 9837
 9838
 9839
 9840
 9841
 9842
 9843
 9844
 9845
 9846
 9847
 9848
 9849
 9850
 9851
 9852
 9853
 9854
 9855
 9856
 9857
 9858
 9859
 9860
 9861
 9862
 9863
 9864
 9865
 9866
 9867
 9868
 9869
 9870
 9871
 9872
 9873
 9874
 9875
 9876
 9877
 9878
 9879
 9880
 9881
 9882
 9883
 9884
 9885
 9886
 9887
 9888
 9889
 9890
 9891
 9892
 9893
 9894
 9895
 9896
 9897
 9898
 9899
 9900
 9901
 9902
 9903
 9904
 9905
 9906
 9907
 9908
 9909
 9910
 9911
 9912
 9913
 9914
 9915
 9916
 9917
 9918
 9919
 9920
 9921
 9922
 9923
 9924
 9925
 9926
 9927
 9928
 9929
 9930
 9931
 9932
 9933
 9934
 9935
 9936
 9937
 9938
 9939
 9940
 9941
 9942
 9943
 9944
 9945
 9946
 9947
 9948
 9949
 9950
 9951
 9952
 9953
 9954
 9955
 9956
 9957
 9958
 9959
 9960
 9961
 9962
 9963
 9964
 9965
 9966
 9967
 9968
 9969
 9970
 9971
 9972
 9973
 9974
 9975
 9976
 9977
 9978
 9979
 9980
 9981
 9982
 9983
 9984
 9985
 9986
 9987
 9988
 9989
 9990
 9991
 9992
 9993
 9994
 9995
 9996
 9997
 9998
 9999
10000
10001
10002
10003
10004
10005
10006
10007
10008
10009
10010
10011
10012
10013
10014
10015
10016
10017
10018
10019
10020
10021
10022
10023
10024
10025
10026
10027
10028
10029
10030
10031
10032
10033
10034
10035
10036
10037
10038
10039
10040
10041
10042
10043
10044
10045
10046
10047
10048
10049
10050
10051
10052
10053
10054
10055
10056
10057
10058
10059
10060
10061
10062
10063
10064
10065
10066
10067
10068
10069
10070
10071
10072
10073
10074
10075
10076
10077
10078
10079
10080
10081
10082
10083
10084
10085
10086
10087
10088
10089
10090
10091
10092
10093
10094
10095
10096
10097
10098
10099
10100
10101
10102
10103
10104
10105
10106
10107
10108
10109
10110
10111
10112
10113
10114
10115
10116
10117
10118
10119
10120
10121
10122
10123
10124
10125
10126
10127
10128
10129
10130
10131
10132
10133
10134
10135
10136
10137
10138
10139
10140
10141
10142
10143
10144
10145
10146
10147
10148
10149
10150
10151
10152
10153
10154
10155
10156
10157
10158
10159
10160
10161
10162
10163
10164
10165
10166
10167
10168
10169
10170
10171
10172
10173
10174
10175
10176
10177
10178
10179
10180
10181
10182
10183
10184
10185
10186
10187
10188
10189
10190
10191
10192
10193
10194
10195
10196
10197
10198
10199
10200
10201
10202
10203
10204
10205
10206
10207
10208
10209
10210
10211
10212
10213
10214
10215
10216
10217
10218
10219
10220
10221
10222
10223
10224
10225
10226
10227
10228
10229
10230
10231
10232
10233
10234
10235
10236
10237
10238
10239
10240
10241
10242
10243
10244
10245
10246
10247
10248
10249
10250
10251
10252
10253
10254
10255
10256
10257
10258
10259
10260
10261
10262
10263
10264
10265
10266
10267
10268
10269
10270
10271
10272
10273
10274
10275
10276
10277
10278
10279
10280
10281
10282
10283
10284
10285
10286
10287
10288
10289
10290
10291
10292
10293
10294
10295
10296
10297
10298
10299
10300
10301
10302
10303
10304
10305
10306
10307
10308
10309
10310
10311
10312
10313
10314
10315
10316
10317
10318
10319
10320
10321
10322
10323
10324
10325
10326
10327
10328
10329
10330
10331
10332
10333
10334
10335
10336
10337
10338
10339
10340
10341
10342
10343
10344
10345
10346
10347
10348
10349
10350
10351
10352
10353
10354
10355
10356
10357
10358
10359
10360
10361
10362
10363
10364
10365
10366
10367
10368
10369
10370
10371
10372
10373
10374
10375
10376
10377
10378
10379
10380
10381
10382
10383
10384
10385
10386
10387
10388
10389
10390
10391
10392
10393
10394
10395
10396
10397
10398
10399
10400
10401
10402
10403
10404
10405
10406
10407
10408
10409
10410
10411
10412
10413
10414
10415
10416
10417
10418
10419
10420
10421
10422
10423
10424
10425
10426
10427
10428
10429
10430
10431
10432
10433
10434
10435
10436
10437
10438
10439
10440
10441
10442
10443
10444
10445
10446
10447
10448
10449
10450
10451
10452
10453
10454
10455
10456
10457
10458
10459
10460
10461
10462
10463
10464
10465
10466
10467
10468
10469
10470
10471
10472
10473
10474
10475
10476
10477
10478
10479
10480
10481
10482
10483
10484
10485
10486
10487
10488
10489
10490
10491
10492
10493
10494
10495
10496
10497
10498
10499
10500
10501
10502
10503
10504
10505
10506
10507
10508
10509
10510
10511
10512
10513
10514
10515
10516
10517
10518
10519
10520
10521
10522
10523
10524
10525
10526
10527
10528
10529
10530
10531
10532
10533
10534
10535
10536
10537
10538
10539
10540
10541
10542
10543
10544
10545
10546
10547
10548
10549
10550
10551
10552
10553
10554
10555
10556
10557
10558
10559
10560
10561
10562
10563
10564
10565
10566
10567
10568
10569
10570
10571
10572
10573
10574
10575
10576
10577
10578
10579
10580
10581
10582
10583
10584
10585
10586
10587
10588
10589
10590
10591
10592
10593
10594
10595
10596
10597
10598
10599
10600
10601
10602
10603
10604
10605
10606
10607
10608
10609
10610
10611
10612
10613
10614
10615
10616
10617
10618
10619
10620
10621
10622
10623
10624
10625
10626
10627
10628
10629
10630
10631
10632
10633
10634
10635
10636
10637
10638
10639
10640
10641
10642
10643
10644
10645
10646
10647
10648
10649
10650
10651
10652
10653
10654
10655
10656
10657
10658
10659
10660
10661
10662
10663
10664
10665
10666
10667
10668
10669
10670
10671
10672
10673
10674
10675
10676
10677
10678
10679
10680
10681
10682
10683
10684
10685
10686
10687
10688
10689
10690
10691
10692
10693
10694
10695
10696
10697
10698
10699
10700
10701
10702
10703
10704
10705
10706
10707
10708
10709
10710
10711
10712
10713
10714
10715
10716
10717
10718
10719
10720
10721
10722
10723
10724
10725
10726
10727
10728
10729
10730
10731
10732
10733
10734
10735
10736
10737
10738
10739
10740
10741
10742
10743
10744
10745
10746
10747
10748
10749
10750
10751
10752
10753
10754
10755
10756
10757
10758
10759
10760
10761
10762
10763
10764
10765
10766
10767
10768
10769
10770
10771
10772
10773
10774
10775
10776
10777
10778
10779
10780
10781
10782
10783
10784
10785
10786
10787
10788
10789
10790
10791
10792
10793
10794
10795
10796
10797
10798
10799
10800
10801
10802
10803
10804
10805
10806
10807
10808
10809
10810
10811
10812
10813
10814
10815
10816
10817
10818
10819
10820
10821
10822
10823
10824
10825
10826
10827
10828
10829
10830
10831
10832
10833
10834
10835
10836
10837
10838
10839
10840
10841
10842
10843
10844
10845
10846
10847
10848
10849
10850
10851
10852
10853
10854
10855
10856
10857
10858
10859
10860
10861
10862
10863
10864
10865
10866
10867
10868
10869
10870
10871
10872
10873
10874
10875
10876
10877
10878
10879
10880
10881
10882
10883
10884
10885
10886
10887
10888
10889
10890
10891
10892
10893
10894
10895
10896
10897
10898
10899
10900
10901
10902
10903
10904
10905
10906
10907
10908
10909
10910
10911
10912
10913
10914
10915
10916
10917
10918
10919
10920
10921
10922
10923
10924
10925
10926
10927
10928
10929
10930
10931
10932
10933
10934
10935
10936
10937
10938
10939
10940
10941
10942
10943
10944
10945
10946
10947
10948
10949
10950
10951
10952
10953
10954
10955
10956
10957
10958
10959
10960
10961
10962
10963
10964
10965
10966
10967
10968
10969
10970
10971
10972
10973
10974
10975
10976
10977
10978
10979
10980
10981
10982
10983
10984
10985
10986
10987
10988
10989
10990
10991
10992
10993
10994
10995
10996
10997
10998
10999
11000
11001
11002
11003
11004
11005
11006
11007
11008
11009
11010
11011
11012
11013
11014
11015
11016
11017
11018
11019
11020
11021
11022
11023
11024
11025
11026
11027
11028
11029
11030
11031
11032
11033
11034
11035
11036
11037
11038
11039
11040
11041
11042
11043
11044
11045
11046
11047
11048
11049
11050
11051
11052
11053
11054
11055
11056
11057
11058
11059
11060
11061
11062
11063
11064
11065
11066
11067
11068
11069
11070
11071
11072
11073
11074
11075
11076
11077
11078
11079
11080
11081
11082
11083
11084
11085
11086
11087
11088
11089
11090
11091
11092
11093
11094
11095
11096
11097
11098
11099
11100
11101
11102
11103
11104
11105
11106
11107
11108
11109
11110
11111
11112
11113
11114
11115
11116
11117
11118
11119
11120
11121
11122
11123
11124
11125
11126
11127
11128
11129
11130
11131
11132
11133
11134
11135
11136
11137
11138
11139
11140
11141
11142
11143
11144
11145
11146
11147
11148
11149
11150
11151
11152
11153
11154
11155
11156
11157
11158
11159
11160
11161
11162
11163
11164
11165
11166
11167
11168
11169
11170
11171
11172
11173
11174
11175
11176
11177
11178
11179
11180
11181
11182
11183
11184
11185
11186
11187
11188
11189
11190
11191
11192
11193
11194
11195
11196
11197
11198
11199
11200
11201
11202
11203
11204
11205
11206
11207
11208
11209
11210
11211
11212
11213
11214
11215
11216
11217
11218
11219
11220
11221
11222
11223
11224
11225
11226
11227
11228
11229
11230
11231
11232
11233
11234
11235
11236
11237
11238
11239
11240
11241
11242
11243
11244
11245
11246
11247
11248
11249
11250
11251
11252
11253
11254
11255
11256
11257
11258
11259
11260
11261
11262
11263
11264
11265
11266
11267
11268
11269
11270
11271
11272
11273
11274
11275
11276
11277
11278
11279
11280
11281
11282
11283
11284
11285
11286
11287
11288
11289
11290
11291
11292
11293
11294
11295
11296
11297
11298
11299
11300
11301
11302
11303
11304
11305
11306
11307
11308
11309
11310
11311
11312
11313
11314
11315
11316
11317
11318
11319
11320
11321
11322
11323
11324
11325
11326
11327
11328
11329
11330
11331
11332
11333
11334
11335
11336
11337
11338
11339
11340
11341
11342
11343
11344
11345
11346
11347
11348
11349
11350
11351
11352
11353
11354
11355
11356
11357
11358
11359
11360
11361
11362
11363
11364
11365
11366
11367
11368
11369
11370
11371
11372
11373
11374
11375
11376
11377
11378
11379
11380
11381
11382
11383
11384
11385
11386
11387
11388
11389
11390
11391
11392
11393
11394
11395
11396
11397
11398
11399
11400
11401
11402
11403
11404
11405
11406
11407
11408
11409
11410
11411
11412
11413
11414
11415
11416
11417
11418
11419
11420
11421
11422
11423
11424
11425
11426
11427
11428
11429
11430
11431
11432
11433
11434
11435
11436
11437
11438
11439
11440
11441
11442
11443
11444
11445
11446
11447
11448
11449
11450
11451
11452
11453
11454
11455
11456
11457
11458
11459
11460
11461
11462
11463
11464
11465
11466
11467
11468
11469
11470
11471
11472
11473
11474
11475
11476
11477
11478
11479
11480
11481
11482
11483
11484
11485
11486
11487
11488
11489
11490
11491
11492
11493
11494
11495
11496
11497
11498
11499
11500
11501
11502
11503
11504
11505
11506
11507
11508
11509
11510
11511
11512
11513
11514
11515
11516
11517
11518
11519
11520
11521
11522
11523
11524
11525
11526
11527
11528
11529
11530
11531
11532
11533
11534
11535
11536
11537
11538
11539
11540
11541
11542
11543
11544
11545
11546
11547
11548
11549
11550
11551
11552
11553
11554
11555
11556
11557
11558
11559
11560
11561
11562
11563
11564
11565
11566
11567
11568
11569
11570
11571
11572
11573
11574
11575
11576
11577
11578
11579
11580
11581
11582
11583
11584
11585
11586
11587
11588
11589
11590
11591
11592
11593
11594
11595
11596
11597
11598
11599
11600
11601
11602
11603
11604
11605
11606
11607
11608
11609
11610
11611
11612
11613
11614
11615
11616
11617
11618
11619
11620
11621
11622
11623
11624
11625
11626
11627
11628
11629
11630
11631
11632
11633
11634
11635
11636
11637
11638
11639
11640
11641
11642
11643
11644
11645
11646
11647
11648
11649
11650
11651
11652
11653
11654
11655
11656
11657
11658
11659
11660
11661
11662
11663
11664
11665
11666
11667
11668
11669
11670
11671
11672
11673
11674
11675
11676
11677
11678
11679
11680
11681
11682
11683
11684
11685
11686
11687
11688
11689
11690
11691
11692
11693
11694
11695
11696
11697
11698
11699
11700
11701
11702
11703
11704
11705
11706
11707
11708
11709
11710
11711
11712
11713
11714
11715
11716
11717
11718
11719
11720
11721
11722
11723
11724
11725
11726
11727
11728
11729
11730
11731
11732
11733
11734
11735
11736
11737
11738
11739
11740
11741
11742
11743
11744
11745
11746
11747
11748
11749
11750
11751
11752
11753
11754
11755
11756
11757
11758
11759
11760
11761
11762
11763
11764
11765
11766
11767
11768
11769
11770
11771
11772
11773
11774
11775
11776
11777
11778
11779
11780
11781
11782
11783
11784
11785
11786
11787
11788
11789
11790
11791
11792
11793
11794
11795
11796
11797
11798
11799
11800
11801
11802
11803
11804
11805
11806
11807
11808
11809
11810
11811
11812
11813
11814
11815
11816
11817
11818
11819
11820
11821
11822
11823
11824
11825
11826
11827
11828
11829
11830
11831
11832
11833
11834
11835
11836
11837
11838
11839
11840
11841
11842
11843
11844
11845
11846
11847
11848
11849
11850
11851
11852
11853
11854
11855
11856
11857
11858
11859
11860
11861
11862
11863
11864
11865
11866
11867
11868
11869
11870
11871
11872
11873
11874
11875
11876
11877
11878
11879
11880
11881
11882
11883
11884
11885
11886
11887
11888
11889
11890
11891
11892
11893
11894
11895
11896
11897
11898
11899
11900
11901
11902
11903
11904
11905
11906
11907
11908
11909
11910
11911
11912
11913
11914
11915
11916
11917
11918
11919
11920
11921
11922
11923
11924
11925
11926
11927
11928
11929
11930
11931
11932
11933
11934
11935
11936
11937
11938
11939
11940
11941
11942
11943
11944
11945
11946
11947
11948
11949
11950
11951
11952
11953
11954
11955
11956
11957
11958
11959
11960
11961
11962
11963
11964
11965
11966
11967
11968
11969
11970
11971
11972
11973
11974
11975
11976
11977
11978
11979
11980
11981
11982
11983
11984
11985
11986
11987
11988
11989
11990
11991
11992
11993
11994
11995
11996
11997
11998
11999
12000
12001
12002
12003
12004
12005
12006
12007
12008
12009
12010
12011
12012
12013
12014
12015
12016
12017
12018
12019
12020
12021
12022
12023
12024
12025
12026
12027
12028
12029
12030
12031
12032
12033
12034
12035
12036
12037
12038
12039
12040
12041
12042
12043
12044
12045
12046
12047
12048
12049
12050
12051
12052
12053
12054
12055
12056
12057
12058
12059
12060
12061
12062
12063
12064
12065
12066
12067
12068
12069
12070
12071
12072
12073
12074
12075
12076
12077
12078
12079
12080
12081
12082
12083
12084
12085
12086
12087
12088
12089
12090
12091
12092
12093
12094
12095
12096
12097
12098
12099
12100
12101
12102
12103
12104
12105
12106
12107
12108
12109
12110
12111
12112
12113
12114
12115
12116
12117
12118
12119
12120
12121
12122
12123
12124
12125
12126
12127
12128
12129
12130
12131
12132
12133
12134
12135
12136
12137
12138
12139
12140
12141
12142
12143
12144
12145
12146
12147
12148
12149
12150
12151
12152
12153
12154
12155
12156
12157
12158
12159
12160
12161
12162
12163
12164
12165
12166
12167
12168
12169
12170
12171
12172
12173
12174
12175
12176
12177
12178
12179
12180
12181
12182
12183
12184
12185
12186
12187
12188
12189
12190
12191
12192
12193
12194
12195
12196
12197
12198
12199
12200
12201
12202
12203
12204
12205
12206
12207
12208
12209
12210
12211
12212
12213
12214
12215
12216
12217
12218
12219
12220
12221
12222
12223
12224
12225
12226
12227
12228
12229
12230
12231
12232
12233
12234
12235
12236
12237
12238
12239
12240
12241
12242
12243
12244
12245
12246
12247
12248
12249
12250
12251
12252
12253
12254
12255
12256
12257
12258
12259
12260
12261
12262
12263
12264
12265
12266
12267
12268
12269
12270
12271
12272
12273
12274
12275
12276
12277
12278
12279
12280
12281
12282
12283
12284
12285
12286
12287
12288
12289
12290
12291
12292
12293
12294
12295
12296
12297
12298
12299
12300
12301
12302
12303
12304
12305
12306
12307
12308
12309
12310
12311
12312
12313
12314
12315
12316
12317
12318
12319
12320
12321
12322
12323
12324
12325
12326
12327
12328
12329
12330
12331
12332
12333
12334
12335
12336
12337
12338
12339
12340
12341
12342
12343
12344
12345
12346
12347
12348
12349
12350
12351
12352
12353
12354
12355
12356
12357
12358
12359
12360
12361
12362
12363
12364
12365
12366
12367
12368
12369
12370
12371
12372
12373
12374
12375
12376
12377
12378
12379
12380
12381
12382
12383
12384
12385
12386
12387
12388
12389
12390
12391
12392
12393
12394
12395
12396
12397
12398
12399
12400
12401
12402
12403
12404
12405
12406
12407
12408
12409
12410
12411
12412
12413
12414
12415
12416
12417
12418
12419
12420
12421
12422
12423
12424
12425
12426
12427
12428
12429
12430
12431
12432
12433
12434
12435
12436
12437
12438
12439
12440
12441
12442
12443
12444
12445
12446
12447
12448
12449
12450
12451
12452
12453
12454
12455
12456
12457
12458
12459
12460
12461
12462
12463
12464
12465
12466
12467
12468
12469
12470
12471
12472
12473
12474
12475
12476
12477
12478
12479
12480
12481
12482
12483
12484
12485
12486
12487
12488
12489
12490
12491
12492
12493
12494
12495
12496
12497
12498
12499
12500
12501
12502
12503
12504
12505
12506
12507
12508
12509
12510
12511
12512
12513
12514
12515
12516
12517
12518
12519
12520
12521
12522
12523
12524
12525
12526
12527
12528
12529
12530
12531
12532
12533
12534
12535
12536
12537
12538
12539
12540
12541
12542
12543
12544
12545
12546
12547
12548
12549
12550
12551
12552
12553
12554
12555
12556
12557
12558
12559
12560
12561
12562
12563
12564
12565
12566
12567
12568
12569
12570
12571
12572
12573
12574
12575
12576
12577
12578
12579
12580
12581
12582
12583
12584
12585
12586
12587
12588
12589
12590
12591
12592
12593
12594
12595
12596
12597
12598
12599
12600
12601
12602
12603
12604
12605
12606
12607
12608
12609
12610
12611
12612
12613
12614
12615
12616
12617
12618
12619
12620
12621
12622
12623
12624
12625
12626
12627
12628
12629
12630
12631
12632
12633
12634
12635
12636
12637
12638
12639
12640
12641
12642
12643
12644
12645
12646
12647
12648
12649
12650
12651
12652
12653
12654
12655
12656
12657
12658
12659
12660
12661
12662
12663
12664
12665
12666
12667
12668
12669
12670
12671
12672
12673
12674
12675
12676
12677
12678
12679
12680
12681
12682
12683
12684
12685
12686
12687
12688
12689
12690
12691
12692
12693
12694
12695
12696
12697
12698
12699
12700
12701
12702
12703
12704
12705
12706
12707
12708
12709
12710
12711
12712
12713
12714
12715
12716
12717
12718
12719
12720
12721
12722
12723
12724
12725
12726
12727
12728
12729
12730
12731
12732
12733
12734
12735
12736
12737
12738
12739
12740
12741
12742
12743
12744
12745
12746
12747
12748
12749
12750
12751
12752
12753
12754
12755
12756
12757
12758
12759
12760
12761
12762
12763
12764
12765
12766
12767
12768
12769
12770
12771
12772
12773
12774
12775
12776
12777
12778
12779
12780
12781
12782
12783
12784
12785
12786
12787
12788
12789
12790
12791
12792
12793
12794
12795
12796
12797
12798
12799
12800
12801
12802
12803
12804
12805
12806
12807
12808
12809
12810
12811
12812
12813
12814
12815
12816
12817
12818
12819
12820
12821
12822
12823
12824
12825
12826
12827
12828
12829
12830
12831
12832
12833
12834
12835
12836
12837
12838
12839
12840
12841
12842
12843
12844
12845
12846
12847
12848
12849
12850
12851
12852
12853
12854
12855
12856
12857
12858
12859
12860
12861
12862
12863
12864
12865
12866
12867
12868
12869
12870
12871
12872
12873
12874
12875
12876
12877
12878
12879
12880
12881
12882
12883
12884
12885
12886
12887
12888
12889
12890
12891
12892
12893
12894
12895
12896
12897
12898
12899
12900
12901
12902
12903
12904
12905
12906
12907
12908
12909
12910
12911
12912
12913
12914
12915
12916
12917
12918
12919
12920
12921
12922
12923
12924
12925
12926
12927
12928
12929
12930
12931
12932
12933
12934
12935
12936
12937
12938
12939
12940
12941
12942
12943
12944
12945
12946
12947
12948
12949
12950
12951
12952
12953
12954
12955
12956
12957
12958
12959
12960
12961
12962
12963
12964
12965
12966
12967
12968
12969
12970
12971
12972
12973
12974
12975
12976
12977
12978
12979
12980
12981
12982
12983
12984
12985
12986
12987
12988
12989
12990
12991
12992
12993
12994
12995
12996
12997
12998
12999
13000
13001
13002
13003
13004
13005
13006
13007
13008
13009
13010
13011
13012
13013
13014
13015
13016
13017
13018
13019
13020
13021
13022
13023
13024
13025
13026
13027
13028
13029
13030
13031
13032
13033
13034
13035
13036
13037
13038
13039
13040
13041
13042
13043
13044
13045
13046
13047
13048
13049
13050
13051
13052
13053
13054
13055
13056
13057
13058
13059
13060
13061
13062
13063
13064
13065
13066
13067
13068
13069
13070
13071
13072
13073
13074
13075
13076
13077
13078
13079
13080
13081
13082
13083
13084
13085
13086
13087
13088
13089
13090
13091
13092
13093
13094
13095
13096
13097
13098
13099
13100
13101
13102
13103
13104
13105
13106
13107
13108
13109
13110
13111
13112
13113
13114
13115
13116
13117
13118
13119
13120
13121
13122
13123
13124
13125
13126
13127
13128
13129
13130
13131
13132
13133
13134
13135
13136
13137
13138
13139
13140
13141
13142
13143
13144
13145
13146
13147
13148
13149
13150
13151
13152
13153
13154
13155
13156
13157
13158
13159
13160
13161
13162
13163
13164
13165
13166
13167
13168
13169
13170
13171
13172
13173
13174
13175
13176
13177
13178
13179
13180
13181
13182
13183
13184
13185
13186
13187
13188
13189
13190
13191
13192
13193
13194
13195
13196
13197
13198
13199
13200
13201
13202
13203
13204
13205
13206
13207
13208
13209
13210
13211
13212
13213
13214
13215
13216
13217
13218
13219
13220
13221
13222
13223
13224
13225
13226
13227
13228
13229
13230
13231
13232
13233
13234
13235
13236
13237
13238
13239
13240
13241
13242
13243
13244
13245
13246
13247
13248
13249
13250
13251
13252
13253
13254
13255
13256
13257
13258
13259
13260
13261
13262
13263
13264
13265
13266
13267
13268
13269
13270
13271
13272
13273
13274
13275
13276
13277
13278
13279
13280
13281
13282
13283
13284
13285
13286
13287
13288
13289
13290
13291
13292
13293
13294
13295
13296
13297
13298
13299
13300
13301
13302
13303
13304
13305
13306
13307
13308
13309
13310
13311
13312
13313
13314
13315
13316
13317
13318
13319
13320
13321
13322
13323
13324
13325
13326
13327
13328
13329
13330
13331
13332
13333
13334
13335
13336
13337
13338
13339
13340
13341
13342
13343
13344
13345
13346
13347
13348
13349
13350
13351
13352
13353
13354
13355
13356
13357
13358
13359
13360
13361
13362
13363
13364
13365
13366
13367
13368
13369
13370
13371
13372
13373
13374
13375
13376
13377
13378
13379
13380
13381
13382
13383
13384
13385
13386
13387
13388
13389
13390
13391
13392
13393
13394
13395
13396
13397
13398
13399
13400
13401
13402
13403
13404
13405
13406
13407
13408
13409
13410
13411
13412
13413
13414
13415
13416
13417
13418
13419
13420
13421
13422
13423
13424
13425
13426
13427
13428
13429
13430
13431
13432
13433
13434
13435
13436
13437
13438
13439
13440
13441
13442
13443
13444
13445
13446
13447
13448
13449
13450
13451
13452
13453
13454
13455
13456
13457
13458
13459
13460
13461
13462
13463
13464
13465
13466
13467
13468
13469
13470
13471
13472
13473
13474
13475
13476
13477
13478
13479
13480
13481
13482
13483
13484
13485
13486
13487
13488
13489
13490
13491
13492
13493
13494
13495
13496
13497
13498
13499
13500
13501
13502
13503
13504
13505
13506
13507
13508
13509
13510
13511
13512
13513
13514
13515
13516
13517
13518
13519
13520
13521
13522
13523
13524
13525
13526
13527
13528
13529
13530
13531
13532
13533
13534
13535
13536
13537
13538
13539
13540
13541
13542
13543
13544
13545
13546
13547
13548
13549
13550
13551
13552
13553
13554
13555
13556
13557
13558
13559
13560
13561
13562
13563
13564
13565
13566
13567
13568
13569
13570
13571
13572
13573
13574
13575
13576
13577
13578
13579
13580
13581
13582
13583
13584
13585
13586
13587
13588
13589
13590
13591
13592
13593
13594
13595
13596
13597
13598
13599
13600
13601
13602
13603
13604
13605
13606
13607
13608
13609
13610
13611
13612
13613
13614
13615
13616
13617
13618
13619
13620
13621
13622
13623
13624
13625
13626
13627
13628
13629
13630
13631
13632
13633
13634
13635
13636
13637
13638
13639
13640
13641
13642
13643
13644
13645
13646
13647
13648
13649
13650
13651
13652
13653
13654
13655
13656
13657
13658
13659
13660
13661
13662
13663
13664
13665
13666
13667
13668
13669
13670
13671
13672
13673
13674
13675
13676
13677
13678
13679
13680
13681
13682
13683
13684
13685
13686
13687
13688
13689
13690
13691
13692
13693
13694
13695
13696
13697
13698
13699
13700
13701
13702
13703
13704
13705
13706
13707
13708
13709
13710
13711
13712
13713
13714
13715
13716
13717
13718
13719
13720
13721
13722
13723
13724
13725
13726
13727
13728
13729
13730
13731
13732
13733
13734
13735
13736
13737
13738
13739
13740
13741
13742
13743
13744
13745
13746
13747
13748
13749
13750
13751
13752
13753
13754
13755
13756
13757
13758
13759
13760
13761
13762
13763
13764
13765
13766
13767
13768
13769
13770
13771
13772
13773
13774
13775
13776
13777
13778
13779
13780
13781
13782
13783
13784
13785
13786
13787
13788
13789
13790
13791
13792
13793
13794
13795
13796
13797
13798
13799
13800
13801
13802
13803
13804
13805
13806
13807
13808
13809
13810
13811
13812
13813
13814
13815
13816
13817
13818
13819
13820
13821
13822
13823
13824
13825
13826
13827
13828
13829
13830
13831
13832
13833
13834
13835
13836
13837
13838
13839
13840
13841
13842
13843
13844
13845
13846
13847
13848
13849
13850
13851
13852
13853
13854
13855
13856
13857
13858
13859
13860
13861
13862
13863
13864
13865
13866
13867
13868
13869
13870
13871
13872
13873
13874
13875
13876
13877
13878
13879
13880
13881
13882
13883
13884
13885
13886
13887
13888
13889
13890
13891
13892
13893
13894
13895
13896
13897
13898
13899
13900
13901
13902
13903
13904
13905
13906
13907
13908
13909
13910
13911
13912
13913
13914
13915
13916
13917
13918
13919
13920
13921
13922
13923
13924
13925
13926
13927
13928
13929
13930
13931
13932
13933
13934
13935
13936
13937
13938
13939
13940
13941
13942
13943
13944
13945
13946
13947
13948
13949
13950
13951
13952
13953
13954
13955
13956
13957
13958
13959
13960
13961
13962
13963
13964
13965
13966
13967
13968
13969
13970
13971
13972
13973
13974
13975
13976
13977
13978
13979
13980
13981
13982
13983
13984
13985
13986
13987
13988
13989
13990
13991
13992
13993
13994
13995
13996
13997
13998
13999
14000
14001
14002
14003
14004
14005
14006
14007
14008
14009
14010
14011
14012
14013
14014
14015
14016
14017
14018
14019
14020
14021
14022
14023
14024
14025
14026
14027
14028
14029
14030
14031
14032
14033
14034
14035
14036
14037
14038
14039
14040
14041
14042
14043
14044
14045
14046
14047
14048
14049
14050
14051
14052
14053
14054
14055
14056
14057
14058
14059
14060
14061
14062
14063
14064
14065
14066
14067
14068
14069
14070
14071
14072
14073
14074
14075
14076
14077
14078
14079
14080
14081
14082
14083
14084
14085
14086
14087
14088
14089
14090
14091
14092
14093
14094
14095
14096
14097
14098
14099
14100
14101
14102
14103
14104
14105
14106
14107
14108
14109
14110
14111
14112
14113
14114
14115
14116
14117
14118
14119
14120
14121
14122
14123
14124
14125
14126
14127
14128
14129
14130
14131
14132
14133
14134
14135
14136
14137
14138
14139
14140
14141
14142
14143
14144
14145
14146
14147
14148
14149
14150
14151
14152
14153
14154
14155
14156
14157
14158
14159
14160
14161
14162
14163
14164
14165
14166
14167
14168
14169
14170
14171
14172
14173
14174
14175
14176
14177
14178
14179
14180
14181
14182
14183
14184
14185
14186
14187
14188
14189
14190
14191
14192
14193
14194
14195
14196
14197
14198
14199
14200
14201
14202
14203
14204
14205
14206
14207
14208
14209
14210
14211
14212
14213
14214
14215
14216
14217
14218
14219
14220
14221
14222
14223
14224
14225
14226
14227
14228
14229
14230
14231
14232
14233
14234
14235
14236
14237
14238
14239
14240
14241
14242
14243
14244
14245
14246
14247
14248
14249
14250
14251
14252
14253
14254
14255
14256
14257
14258
14259
14260
14261
14262
14263
14264
14265
14266
14267
14268
14269
14270
14271
14272
14273
14274
14275
14276
14277
14278
14279
14280
14281
14282
14283
14284
14285
14286
14287
14288
14289
14290
14291
14292
14293
14294
14295
14296
14297
14298
14299
14300
14301
14302
14303
14304
14305
14306
14307
14308
14309
14310
14311
14312
14313
14314
14315
14316
14317
14318
14319
14320
14321
14322
14323
14324
14325
14326
14327
14328
14329
14330
14331
14332
14333
14334
14335
14336
14337
14338
14339
14340
14341
14342
14343
14344
14345
14346
14347
14348
14349
14350
14351
14352
14353
14354
14355
14356
14357
14358
14359
14360
14361
14362
14363
14364
14365
14366
14367
14368
14369
14370
14371
14372
14373
14374
14375
14376
14377
14378
14379
14380
14381
14382
14383
14384
14385
14386
14387
14388
14389
14390
14391
14392
14393
14394
14395
14396
14397
14398
14399
14400
14401
14402
14403
14404
14405
14406
14407
14408
14409
14410
14411
14412
14413
14414
14415
14416
14417
14418
14419
14420
14421
14422
14423
14424
14425
14426
14427
14428
14429
14430
14431
14432
14433
14434
14435
14436
14437
14438
14439
14440
14441
14442
14443
14444
14445
14446
14447
14448
14449
14450
14451
14452
14453
14454
14455
14456
14457
14458
14459
14460
14461
14462
14463
14464
14465
14466
14467
14468
14469
14470
14471
14472
14473
14474
14475
14476
14477
14478
14479
14480
14481
14482
14483
14484
14485
14486
14487
14488
14489
14490
14491
14492
14493
14494
14495
14496
14497
14498
14499
14500
14501
14502
14503
14504
14505
14506
14507
14508
14509
14510
14511
14512
14513
14514
14515
14516
14517
14518
14519
14520
14521
14522
14523
14524
14525
14526
14527
14528
14529
14530
14531
14532
14533
14534
14535
14536
14537
14538
14539
14540
14541
14542
14543
14544
14545
14546
14547
14548
14549
14550
14551
14552
14553
14554
14555
14556
14557
14558
14559
14560
14561
14562
14563
14564
14565
14566
14567
14568
14569
14570
14571
14572
14573
14574
14575
14576
14577
14578
14579
14580
14581
14582
14583
14584
14585
14586
14587
14588
14589
14590
14591
14592
14593
14594
14595
14596
14597
14598
14599
14600
14601
14602
14603
14604
14605
14606
14607
14608
14609
14610
14611
14612
14613
14614
14615
14616
14617
14618
14619
14620
14621
14622
14623
14624
14625
14626
14627
14628
14629
14630
14631
14632
14633
14634
14635
14636
14637
14638
14639
14640
14641
14642
14643
14644
14645
14646
14647
14648
14649
14650
14651
14652
14653
14654
14655
14656
14657
14658
14659
14660
14661
14662
14663
14664
14665
14666
14667
14668
14669
14670
14671
14672
14673
14674
14675
14676
14677
14678
14679
14680
14681
14682
14683
14684
14685
14686
14687
14688
14689
14690
14691
14692
14693
14694
14695
14696
14697
14698
14699
14700
14701
14702
14703
14704
14705
14706
14707
14708
14709
14710
14711
14712
14713
14714
14715
14716
14717
14718
14719
14720
14721
14722
14723
14724
14725
14726
14727
14728
14729
14730
14731
14732
14733
14734
14735
14736
14737
14738
14739
14740
14741
14742
14743
14744
14745
14746
14747
14748
14749
14750
14751
14752
14753
14754
14755
14756
14757
14758
14759
14760
14761
14762
14763
14764
14765
14766
14767
14768
14769
14770
14771
14772
14773
14774
14775
14776
14777
14778
14779
14780
14781
14782
14783
14784
14785
14786
14787
14788
14789
14790
14791
14792
14793
14794
14795
14796
14797
14798
14799
14800
14801
14802
14803
14804
14805
14806
14807
14808
14809
14810
14811
14812
14813
14814
14815
14816
14817
14818
14819
14820
14821
14822
14823
14824
14825
14826
14827
14828
14829
14830
14831
14832
14833
14834
14835
14836
14837
14838
14839
14840
14841
14842
14843
14844
14845
14846
14847
14848
14849
14850
14851
14852
14853
14854
14855
14856
14857
14858
14859
14860
14861
14862
14863
14864
14865
14866
14867
14868
14869
14870
14871
14872
14873
14874
14875
14876
14877
14878
14879
14880
14881
14882
14883
14884
14885
14886
14887
14888
14889
14890
14891
14892
14893
14894
14895
14896
14897
14898
14899
14900
14901
14902
14903
14904
14905
14906
14907
14908
14909
14910
14911
14912
14913
14914
14915
14916
14917
14918
14919
14920
14921
14922
14923
14924
14925
14926
14927
14928
14929
14930
14931
14932
14933
14934
14935
14936
14937
14938
14939
14940
14941
14942
14943
14944
14945
14946
14947
14948
14949
14950
14951
14952
14953
14954
14955
14956
14957
14958
14959
14960
14961
14962
14963
14964
14965
14966
14967
14968
14969
14970
14971
14972
14973
14974
14975
14976
14977
14978
14979
14980
14981
14982
14983
14984
14985
14986
14987
14988
14989
14990
14991
14992
14993
14994
14995
14996
14997
14998
14999
15000
15001
15002
15003
15004
15005
15006
15007
15008
15009
15010
15011
15012
15013
15014
15015
15016
15017
15018
15019
15020
15021
15022
15023
15024
15025
15026
15027
15028
15029
15030
15031
15032
15033
15034
15035
15036
15037
15038
15039
15040
15041
15042
15043
15044
15045
15046
15047
15048
15049
15050
15051
15052
15053
15054
15055
15056
15057
15058
15059
15060
15061
15062
15063
15064
15065
15066
15067
15068
15069
15070
15071
15072
15073
15074
15075
15076
15077
15078
15079
15080
15081
15082
15083
15084
15085
15086
15087
15088
15089
15090
15091
15092
15093
15094
15095
15096
15097
15098
15099
15100
15101
15102
15103
15104
15105
15106
15107
15108
15109
15110
15111
15112
15113
15114
15115
15116
15117
15118
15119
15120
15121
15122
15123
15124
15125
15126
15127
15128
15129
15130
15131
15132
15133
15134
15135
15136
15137
15138
15139
15140
15141
15142
15143
15144
15145
15146
15147
15148
15149
15150
15151
15152
15153
15154
15155
15156
15157
15158
15159
15160
15161
15162
15163
15164
15165
15166
15167
15168
15169
15170
15171
15172
15173
15174
15175
15176
15177
15178
15179
15180
15181
15182
15183
15184
15185
15186
15187
15188
15189
15190
15191
15192
15193
15194
15195
15196
15197
15198
15199
15200
15201
15202
15203
15204
15205
15206
15207
15208
15209
15210
15211
15212
15213
15214
15215
15216
15217
15218
15219
15220
15221
15222
15223
15224
15225
15226
15227
15228
15229
15230
15231
15232
15233
15234
15235
15236
15237
15238
15239
15240
15241
15242
15243
15244
15245
15246
15247
15248
15249
15250
15251
15252
15253
15254
15255
15256
15257
15258
15259
15260
15261
15262
15263
15264
15265
15266
15267
15268
15269
15270
15271
15272
15273
15274
15275
15276
15277
15278
15279
15280
15281
15282
15283
15284
15285
15286
15287
15288
15289
15290
15291
15292
15293
15294
15295
15296
15297
15298
15299
15300
15301
15302
15303
15304
15305
15306
15307
15308
15309
15310
15311
15312
15313
15314
15315
15316
15317
15318
15319
15320
15321
15322
15323
15324
15325
15326
15327
15328
15329
15330
15331
15332
15333
15334
15335
15336
15337
15338
15339
15340
15341
15342
15343
15344
15345
15346
15347
15348
15349
15350
15351
15352
15353
15354
15355
15356
15357
15358
15359
15360
15361
15362
15363
15364
15365
15366
15367
15368
15369
15370
15371
15372
15373
15374
15375
15376
15377
15378
15379
15380
15381
15382
15383
15384
15385
15386
15387
15388
15389
15390
15391
15392
15393
15394
15395
15396
15397
15398
15399
15400
15401
15402
15403
15404
15405
15406
15407
15408
15409
15410
15411
15412
15413
15414
15415
15416
15417
15418
15419
15420
15421
15422
15423
15424
15425
15426
15427
15428
15429
15430
15431
15432
15433
15434
15435
15436
15437
15438
15439
15440
15441
15442
15443
15444
15445
15446
15447
15448
15449
15450
15451
15452
15453
15454
15455
15456
15457
15458
15459
15460
15461
15462
15463
15464
15465
15466
15467
15468
15469
15470
15471
15472
15473
15474
15475
15476
15477
15478
15479
15480
15481
15482
15483
15484
15485
15486
15487
15488
15489
15490
15491
15492
15493
15494
15495
15496
15497
15498
15499
15500
15501
15502
15503
15504
15505
15506
15507
15508
15509
15510
15511
15512
15513
15514
15515
15516
15517
15518
15519
15520
15521
15522
15523
15524
15525
15526
15527
15528
15529
15530
15531
15532
15533
15534
15535
15536
15537
15538
15539
15540
15541
15542
15543
15544
15545
15546
15547
15548
15549
15550
15551
15552
15553
15554
15555
15556
15557
15558
15559
15560
15561
15562
15563
15564
15565
15566
15567
15568
15569
15570
15571
15572
15573
15574
15575
15576
15577
15578
15579
15580
15581
15582
15583
15584
15585
15586
15587
15588
15589
15590
15591
15592
15593
15594
15595
15596
15597
15598
15599
15600
15601
15602
15603
15604
15605
15606
15607
15608
15609
15610
15611
15612
15613
15614
15615
15616
15617
15618
15619
15620
15621
15622
15623
15624
15625
15626
15627
15628
15629
15630
15631
15632
15633
15634
15635
15636
15637
15638
15639
15640
15641
15642
15643
15644
15645
15646
15647
15648
15649
15650
15651
15652
15653
15654
15655
15656
15657
15658
15659
15660
15661
15662
15663
15664
15665
15666
15667
15668
15669
15670
15671
15672
15673
15674
15675
15676
15677
15678
15679
15680
15681
15682
15683
15684
15685
15686
15687
15688
15689
15690
15691
15692
15693
15694
15695
15696
15697
15698
15699
15700
15701
15702
15703
15704
15705
15706
15707
15708
15709
15710
15711
15712
15713
15714
15715
15716
15717
15718
15719
15720
15721
15722
15723
15724
15725
15726
15727
15728
15729
15730
15731
15732
15733
15734
15735
15736
15737
15738
15739
15740
15741
15742
15743
15744
15745
15746
15747
15748
15749
15750
15751
15752
15753
15754
15755
15756
15757
15758
15759
15760
15761
15762
15763
15764
15765
15766
15767
15768
15769
15770
15771
15772
15773
15774
15775
15776
15777
15778
15779
15780
15781
15782
15783
15784
15785
15786
15787
15788
15789
15790
15791
15792
15793
15794
15795
15796
15797
15798
15799
15800
15801
15802
15803
15804
15805
15806
15807
15808
15809
15810
15811
15812
15813
15814
15815
15816
15817
15818
15819
15820
15821
15822
15823
15824
15825
15826
15827
15828
15829
15830
15831
15832
15833
15834
15835
15836
15837
15838
15839
15840
15841
15842
15843
15844
15845
15846
15847
15848
15849
15850
15851
15852
15853
15854
15855
15856
15857
15858
15859
15860
15861
15862
15863
15864
15865
15866
15867
15868
15869
15870
15871
15872
15873
15874
15875
15876
15877
15878
15879
15880
15881
15882
15883
15884
15885
15886
15887
15888
15889
15890
15891
15892
15893
15894
15895
15896
15897
15898
15899
15900
15901
15902
15903
15904
15905
15906
15907
15908
15909
15910
15911
15912
15913
15914
15915
15916
15917
15918
15919
15920
15921
15922
15923
15924
15925
15926
15927
15928
15929
15930
15931
15932
15933
15934
15935
15936
15937
15938
15939
15940
15941
15942
15943
15944
15945
15946
15947
15948
15949
15950
15951
15952
15953
15954
15955
15956
15957
15958
15959
15960
15961
15962
15963
15964
15965
15966
15967
15968
15969
15970
15971
15972
15973
15974
15975
15976
15977
15978
15979
15980
15981
15982
15983
15984
15985
15986
15987
15988
15989
15990
15991
15992
15993
15994
15995
15996
15997
15998
15999
16000
16001
16002
16003
16004
16005
16006
16007
16008
16009
16010
16011
16012
16013
16014
16015
16016
16017
16018
16019
16020
16021
16022
16023
16024
16025
16026
16027
16028
16029
16030
16031
16032
16033
16034
16035
16036
16037
16038
16039
16040
16041
16042
16043
16044
16045
16046
16047
16048
16049
16050
16051
16052
16053
16054
16055
16056
16057
16058
16059
16060
16061
16062
16063
16064
16065
16066
16067
16068
16069
16070
16071
16072
16073
16074
16075
16076
16077
16078
16079
16080
16081
16082
16083
16084
16085
16086
16087
16088
16089
16090
16091
16092
16093
16094
16095
16096
16097
16098
16099
16100
16101
16102
16103
16104
16105
16106
16107
16108
16109
16110
16111
16112
16113
16114
16115
16116
16117
16118
16119
16120
16121
16122
16123
16124
16125
16126
16127
16128
16129
16130
16131
16132
16133
16134
16135
16136
16137
16138
16139
16140
16141
16142
16143
16144
16145
16146
16147
16148
16149
16150
16151
16152
16153
16154
16155
16156
16157
16158
16159
16160
16161
16162
16163
16164
16165
16166
16167
16168
16169
16170
16171
16172
16173
16174
16175
16176
16177
16178
16179
16180
16181
16182
16183
16184
16185
16186
16187
16188
16189
16190
16191
16192
16193
16194
16195
16196
16197
16198
16199
16200
16201
16202
16203
16204
16205
16206
16207
16208
16209
16210
16211
16212
16213
16214
16215
16216
16217
16218
16219
16220
16221
16222
16223
16224
16225
16226
16227
16228
16229
16230
16231
16232
16233
16234
16235
16236
16237
16238
16239
16240
16241
16242
16243
16244
16245
16246
16247
16248
16249
16250
16251
16252
16253
16254
16255
16256
16257
16258
16259
16260
16261
16262
16263
16264
16265
16266
16267
16268
16269
16270
16271
16272
16273
16274
16275
16276
16277
16278
16279
16280
16281
16282
16283
16284
16285
16286
16287
16288
16289
16290
16291
16292
16293
16294
16295
16296
16297
16298
16299
16300
16301
16302
16303
16304
16305
16306
16307
16308
16309
16310
16311
16312
16313
16314
16315
16316
16317
16318
16319
16320
16321
16322
16323
16324
16325
16326
16327
16328
16329
16330
16331
16332
16333
16334
16335
16336
16337
16338
16339
16340
16341
16342
16343
16344
16345
16346
16347
16348
16349
16350
16351
16352
16353
16354
16355
16356
16357
16358
16359
16360
16361
16362
16363
16364
16365
16366
16367
16368
16369
16370
16371
16372
16373
16374
16375
16376
16377
16378
16379
16380
16381
16382
16383
16384
16385
16386
16387
16388
16389
16390
16391
16392
16393
16394
16395
16396
16397
16398
16399
16400
16401
16402
16403
16404
16405
16406
16407
16408
16409
16410
16411
16412
16413
16414
16415
16416
16417
16418
16419
16420
16421
16422
16423
16424
16425
16426
16427
16428
16429
16430
16431
16432
16433
16434
16435
16436
16437
16438
16439
16440
16441
16442
16443
16444
16445
16446
16447
16448
16449
16450
16451
16452
16453
16454
16455
16456
16457
16458
16459
16460
16461
16462
16463
16464
16465
16466
16467
16468
16469
16470
16471
16472
16473
16474
16475
16476
16477
16478
16479
16480
16481
16482
16483
16484
16485
16486
16487
16488
16489
16490
16491
16492
16493
16494
16495
16496
16497
16498
16499
16500
16501
16502
16503
16504
16505
16506
16507
16508
16509
16510
16511
16512
16513
16514
16515
16516
16517
16518
16519
16520
16521
16522
16523
16524
16525
16526
16527
16528
16529
16530
16531
16532
16533
16534
16535
16536
16537
16538
16539
16540
16541
16542
16543
16544
16545
16546
16547
16548
16549
16550
16551
16552
16553
16554
16555
16556
16557
16558
16559
16560
16561
16562
16563
16564
16565
16566
16567
16568
16569
16570
16571
16572
16573
16574
16575
16576
16577
16578
16579
16580
16581
16582
16583
16584
16585
16586
16587
16588
16589
16590
16591
16592
16593
16594
16595
16596
16597
16598
16599
16600
16601
16602
16603
16604
16605
16606
16607
16608
16609
16610
16611
16612
16613
16614
16615
16616
16617
16618
16619
16620
16621
16622
16623
16624
16625
16626
16627
16628
16629
16630
16631
16632
16633
16634
16635
16636
16637
16638
16639
16640
16641
16642
16643
16644
16645
16646
16647
16648
16649
16650
16651
16652
16653
16654
16655
16656
16657
16658
16659
16660
16661
16662
16663
16664
16665
16666
16667
16668
16669
16670
16671
16672
16673
16674
16675
16676
16677
16678
16679
16680
16681
16682
16683
16684
16685
16686
16687
16688
16689
16690
16691
16692
16693
16694
16695
16696
16697
16698
16699
16700
16701
16702
16703
16704
16705
16706
16707
16708
16709
16710
16711
16712
16713
16714
16715
16716
16717
16718
16719
16720
16721
16722
16723
16724
16725
16726
16727
16728
16729
16730
16731
16732
16733
16734
16735
16736
16737
16738
16739
16740
16741
16742
16743
16744
16745
16746
16747
16748
16749
16750
16751
16752
16753
16754
16755
16756
16757
16758
16759
16760
16761
16762
16763
16764
16765
16766
16767
16768
16769
16770
16771
16772
16773
16774
16775
16776
16777
16778
16779
16780
16781
16782
16783
16784
16785
16786
16787
16788
16789
16790
16791
16792
16793
16794
16795
16796
16797
16798
16799
16800
16801
16802
16803
16804
16805
16806
16807
16808
16809
16810
16811
16812
16813
16814
16815
16816
16817
16818
16819
16820
16821
16822
16823
16824
16825
16826
16827
16828
16829
16830
16831
16832
16833
16834
16835
16836
16837
16838
16839
16840
16841
16842
16843
16844
16845
16846
16847
16848
16849
16850
16851
16852
16853
16854
16855
16856
16857
16858
16859
16860
16861
16862
16863
16864
16865
16866
16867
16868
16869
16870
16871
16872
16873
16874
16875
16876
16877
16878
16879
16880
16881
16882
16883
16884
16885
16886
16887
16888
16889
16890
16891
16892
16893
16894
16895
16896
16897
16898
16899
16900
16901
16902
16903
16904
16905
16906
16907
16908
16909
16910
16911
16912
16913
16914
16915
16916
16917
16918
16919
16920
16921
16922
16923
16924
16925
16926
16927
16928
16929
16930
16931
16932
16933
16934
16935
16936
16937
16938
16939
16940
16941
16942
16943
16944
16945
16946
16947
16948
16949
16950
16951
16952
16953
16954
16955
16956
16957
16958
16959
16960
16961
16962
16963
16964
16965
16966
16967
16968
16969
16970
16971
16972
16973
16974
16975
16976
16977
16978
16979
16980
16981
16982
16983
16984
16985
16986
16987
16988
16989
16990
16991
16992
16993
16994
16995
16996
16997
16998
16999
17000
17001
17002
17003
17004
17005
17006
17007
17008
17009
17010
17011
17012
17013
17014
17015
17016
17017
17018
17019
17020
17021
17022
17023
17024
17025
17026
17027
17028
17029
17030
17031
17032
17033
17034
17035
17036
17037
17038
17039
17040
17041
17042
17043
17044
17045
17046
17047
17048
17049
17050
17051
17052
17053
17054
17055
17056
17057
17058
17059
17060
17061
17062
17063
17064
17065
17066
17067
17068
17069
17070
17071
17072
17073
17074
17075
17076
17077
17078
17079
17080
17081
17082
17083
17084
17085
17086
17087
17088
17089
17090
17091
17092
17093
17094
17095
17096
17097
17098
17099
17100
17101
17102
17103
17104
17105
17106
17107
17108
17109
17110
17111
17112
17113
17114
17115
17116
17117
17118
17119
17120
17121
17122
17123
17124
17125
17126
17127
17128
17129
17130
17131
17132
17133
17134
17135
17136
17137
17138
17139
17140
17141
17142
17143
17144
17145
17146
17147
17148
17149
17150
17151
17152
17153
17154
17155
17156
17157
17158
17159
17160
17161
17162
17163
17164
17165
17166
17167
17168
17169
17170
17171
17172
17173
17174
17175
17176
17177
17178
17179
17180
17181
17182
17183
17184
17185
17186
17187
17188
17189
17190
17191
17192
17193
17194
17195
17196
17197
17198
17199
17200
17201
17202
17203
17204
17205
17206
17207
17208
17209
17210
17211
17212
17213
17214
17215
17216
17217
17218
17219
17220
17221
17222
17223
17224
17225
17226
17227
17228
17229
17230
17231
17232
17233
17234
17235
17236
17237
17238
17239
17240
17241
17242
17243
17244
17245
17246
17247
17248
17249
17250
17251
17252
17253
17254
17255
17256
17257
17258
17259
17260
17261
17262
17263
17264
17265
17266
17267
17268
17269
17270
17271
17272
17273
17274
17275
17276
17277
17278
17279
17280
17281
17282
17283
17284
17285
17286
17287
17288
17289
17290
17291
17292
17293
17294
17295
17296
17297
17298
17299
17300
17301
17302
17303
17304
17305
17306
17307
17308
17309
17310
17311
17312
17313
17314
17315
17316
17317
17318
17319
17320
17321
17322
17323
17324
17325
17326
17327
17328
17329
17330
17331
17332
17333
17334
17335
17336
17337
17338
17339
17340
17341
17342
17343
17344
17345
17346
17347
17348
17349
17350
17351
17352
17353
17354
17355
17356
17357
17358
17359
17360
17361
17362
17363
17364
17365
17366
17367
17368
17369
17370
17371
17372
17373
17374
17375
17376
17377
17378
17379
17380
17381
17382
17383
17384
17385
17386
17387
17388
17389
17390
17391
17392
17393
17394
17395
17396
17397
17398
17399
17400
17401
17402
17403
17404
17405
17406
17407
17408
17409
17410
17411
17412
17413
17414
17415
17416
17417
17418
17419
17420
17421
17422
17423
17424
17425
17426
17427
17428
17429
17430
17431
17432
17433
17434
17435
17436
17437
17438
17439
17440
17441
17442
17443
17444
17445
17446
17447
17448
17449
17450
17451
17452
17453
17454
17455
17456
17457
17458
17459
17460
17461
17462
17463
17464
17465
17466
17467
17468
17469
17470
17471
17472
17473
17474
17475
17476
17477
17478
17479
17480
17481
17482
17483
17484
17485
17486
17487
17488
17489
17490
17491
17492
17493
17494
17495
17496
17497
17498
17499
17500
17501
17502
17503
17504
17505
17506
17507
17508
17509
17510
17511
17512
17513
17514
17515
17516
17517
17518
17519
17520
17521
17522
17523
17524
17525
17526
17527
17528
17529
17530
17531
17532
17533
17534
17535
17536
17537
17538
17539
17540
17541
17542
17543
17544
17545
17546
17547
17548
17549
17550
17551
17552
17553
17554
17555
17556
17557
17558
17559
17560
17561
17562
17563
17564
17565
17566
17567
17568
17569
17570
17571
17572
17573
17574
17575
17576
17577
17578
17579
17580
17581
17582
17583
17584
17585
17586
17587
17588
17589
17590
17591
17592
17593
17594
17595
17596
17597
17598
17599
17600
17601
17602
17603
17604
17605
17606
17607
17608
17609
17610
17611
17612
17613
17614
17615
17616
17617
17618
17619
17620
17621
17622
17623
17624
17625
17626
17627
17628
17629
17630
17631
17632
17633
17634
17635
17636
17637
17638
17639
17640
17641
17642
17643
17644
17645
17646
17647
17648
17649
17650
17651
17652
17653
17654
17655
17656
17657
17658
17659
17660
17661
17662
17663
17664
17665
17666
17667
17668
17669
17670
17671
17672
17673
17674
17675
17676
17677
17678
17679
17680
17681
17682
17683
17684
17685
17686
17687
17688
17689
17690
17691
17692
17693
17694
17695
17696
17697
17698
17699
17700
17701
17702
17703
17704
17705
17706
17707
17708
17709
17710
17711
17712
17713
17714
17715
17716
17717
17718
17719
17720
17721
17722
17723
17724
17725
17726
17727
17728
17729
17730
17731
17732
17733
17734
17735
17736
17737
17738
17739
17740
17741
17742
17743
17744
17745
17746
17747
17748
17749
17750
17751
17752
17753
17754
17755
17756
17757
17758
17759
17760
17761
17762
17763
17764
17765
17766
17767
17768
17769
17770
17771
17772
17773
17774
17775
17776
17777
17778
17779
17780
17781
17782
17783
17784
17785
17786
17787
17788
17789
17790
17791
17792
17793
17794
17795
17796
17797
17798
17799
17800
17801
17802
17803
17804
17805
17806
17807
17808
17809
17810
17811
17812
17813
17814
17815
17816
17817
17818
17819
17820
17821
17822
17823
17824
17825
17826
17827
17828
17829
17830
17831
17832
17833
17834
17835
17836
17837
17838
17839
17840
17841
17842
17843
17844
17845
17846
17847
17848
17849
17850
17851
17852
17853
17854
17855
17856
17857
17858
17859
17860
17861
17862
17863
17864
17865
17866
17867
17868
17869
17870
17871
17872
17873
17874
17875
17876
17877
17878
17879
17880
17881
17882
17883
17884
17885
17886
17887
17888
17889
17890
17891
17892
17893
17894
17895
17896
17897
17898
17899
17900
17901
17902
17903
17904
17905
17906
17907
17908
17909
17910
17911
17912
17913
17914
17915
17916
17917
17918
17919
17920
17921
17922
17923
17924
17925
17926
17927
17928
17929
17930
17931
17932
17933
17934
17935
17936
17937
17938
17939
17940
17941
17942
17943
17944
17945
17946
17947
17948
17949
17950
17951
17952
17953
17954
17955
17956
17957
17958
17959
17960
17961
17962
17963
17964
17965
17966
17967
17968
17969
17970
17971
17972
17973
17974
17975
17976
17977
17978
17979
17980
17981
17982
17983
17984
17985
17986
17987
17988
17989
17990
17991
17992
17993
17994
17995
17996
17997
17998
17999
18000
18001
18002
18003
18004
18005
18006
18007
18008
18009
18010
18011
18012
18013
18014
18015
18016
18017
18018
18019
18020
18021
18022
18023
18024
18025
18026
18027
18028
18029
18030
18031
18032
18033
18034
18035
18036
18037
18038
18039
18040
18041
18042
18043
18044
18045
18046
18047
18048
18049
18050
18051
18052
18053
18054
18055
18056
18057
18058
18059
18060
18061
18062
18063
18064
18065
18066
18067
18068
18069
18070
18071
18072
18073
18074
18075
18076
18077
18078
18079
18080
18081
18082
18083
18084
18085
18086
18087
18088
18089
18090
18091
18092
18093
18094
18095
18096
18097
18098
18099
18100
18101
18102
18103
18104
18105
18106
18107
18108
18109
18110
18111
18112
18113
18114
18115
18116
18117
18118
18119
18120
18121
18122
18123
18124
18125
18126
18127
18128
18129
18130
18131
18132
18133
18134
18135
18136
18137
18138
18139
18140
18141
18142
18143
18144
18145
18146
18147
18148
18149
18150
18151
18152
18153
18154
18155
18156
18157
18158
18159
18160
18161
18162
18163
18164
18165
18166
18167
18168
18169
18170
18171
18172
18173
18174
18175
18176
18177
18178
18179
18180
18181
18182
18183
18184
18185
18186
18187
18188
18189
18190
18191
18192
18193
18194
18195
18196
18197
18198
18199
18200
18201
18202
18203
18204
18205
18206
18207
18208
18209
18210
18211
18212
18213
18214
18215
18216
18217
18218
18219
18220
18221
18222
18223
18224
18225
18226
18227
18228
18229
18230
18231
18232
18233
18234
18235
18236
18237
18238
18239
18240
18241
18242
18243
18244
18245
18246
18247
18248
18249
18250
18251
18252
18253
18254
18255
18256
18257
18258
18259
18260
18261
18262
18263
18264
18265
18266
18267
18268
18269
18270
18271
18272
18273
18274
18275
18276
18277
18278
18279
18280
18281
18282
18283
18284
18285
18286
18287
18288
18289
18290
18291
18292
18293
18294
18295
18296
18297
18298
18299
18300
18301
18302
18303
18304
18305
18306
18307
18308
18309
18310
18311
18312
18313
18314
18315
18316
18317
18318
18319
18320
18321
18322
18323
18324
18325
18326
18327
18328
18329
18330
18331
18332
18333
18334
18335
18336
18337
18338
18339
18340
18341
18342
18343
18344
18345
18346
18347
18348
18349
18350
18351
18352
18353
18354
18355
18356
18357
18358
18359
18360
18361
18362
18363
18364
18365
18366
18367
18368
18369
18370
18371
18372
18373
18374
18375
18376
18377
18378
18379
18380
18381
18382
18383
18384
18385
18386
18387
18388
18389
18390
18391
18392
18393
18394
18395
18396
18397
18398
18399
18400
18401
18402
18403
18404
18405
18406
18407
18408
18409
18410
18411
18412
18413
18414
18415
18416
18417
18418
18419
18420
18421
18422
18423
18424
18425
18426
18427
18428
18429
18430
18431
18432
18433
18434
18435
18436
18437
18438
18439
18440
18441
18442
18443
18444
18445
18446
18447
18448
18449
18450
18451
18452
18453
18454
18455
18456
18457
18458
18459
18460
18461
18462
18463
18464
18465
18466
18467
18468
18469
18470
18471
18472
18473
18474
18475
18476
18477
18478
18479
18480
18481
18482
18483
18484
18485
18486
18487
18488
18489
18490
18491
18492
18493
18494
18495
18496
18497
18498
18499
18500
18501
18502
18503
18504
18505
18506
18507
18508
18509
18510
18511
18512
18513
18514
18515
18516
18517
18518
18519
18520
18521
18522
18523
18524
18525
18526
18527
18528
18529
18530
18531
18532
18533
18534
18535
18536
18537
18538
18539
18540
18541
18542
18543
18544
18545
18546
18547
18548
18549
18550
18551
18552
18553
18554
18555
18556
18557
18558
18559
18560
18561
18562
18563
18564
18565
18566
18567
18568
18569
18570
18571
18572
18573
18574
18575
18576
18577
18578
18579
18580
18581
18582
18583
18584
18585
18586
18587
18588
18589
18590
18591
18592
18593
18594
18595
18596
18597
18598
18599
18600
18601
18602
18603
18604
18605
18606
18607
18608
18609
18610
18611
18612
18613
18614
18615
18616
18617
18618
18619
18620
18621
18622
18623
18624
18625
18626
18627
18628
18629
18630
18631
18632
18633
18634
18635
18636
18637
18638
18639
18640
18641
18642
18643
18644
18645
18646
18647
18648
18649
18650
18651
18652
18653
18654
18655
18656
18657
18658
18659
18660
18661
18662
18663
18664
18665
18666
18667
18668
18669
18670
18671
18672
18673
18674
18675
18676
18677
18678
18679
18680
18681
18682
18683
18684
18685
18686
18687
18688
18689
18690
18691
18692
18693
18694
18695
18696
18697
18698
18699
18700
18701
18702
18703
18704
18705
18706
18707
18708
18709
18710
18711
18712
18713
18714
18715
18716
18717
18718
18719
18720
18721
18722
18723
18724
18725
18726
18727
18728
18729
18730
18731
18732
18733
18734
18735
18736
18737
18738
18739
18740
18741
18742
18743
18744
18745
18746
18747
18748
18749
18750
18751
18752
18753
18754
18755
18756
18757
18758
18759
18760
18761
18762
18763
18764
18765
18766
18767
18768
18769
18770
18771
18772
18773
18774
18775
18776
18777
18778
18779
18780
18781
18782
18783
18784
18785
18786
18787
18788
18789
18790
18791
18792
18793
18794
18795
18796
18797
18798
18799
18800
18801
18802
18803
18804
18805
18806
18807
18808
18809
18810
18811
18812
18813
18814
18815
18816
18817
18818
18819
18820
18821
18822
18823
18824
18825
18826
18827
18828
18829
18830
18831
18832
18833
18834
18835
18836
18837
18838
18839
18840
18841
18842
18843
18844
18845
18846
18847
18848
18849
18850
18851
18852
18853
18854
18855
18856
18857
18858
18859
18860
18861
18862
18863
18864
18865
18866
18867
18868
18869
18870
18871
18872
18873
18874
18875
18876
18877
18878
18879
18880
18881
18882
18883
18884
18885
18886
18887
18888
18889
18890
18891
18892
18893
18894
18895
18896
18897
18898
18899
18900
18901
18902
18903
18904
18905
18906
18907
18908
18909
18910
18911
18912
18913
18914
18915
18916
18917
18918
18919
18920
18921
18922
18923
18924
18925
18926
18927
18928
18929
18930
18931
18932
18933
18934
18935
18936
18937
18938
18939
18940
18941
18942
18943
18944
18945
18946
18947
18948
18949
18950
18951
18952
18953
18954
18955
18956
18957
18958
18959
18960
18961
18962
18963
18964
18965
18966
18967
18968
18969
18970
18971
18972
18973
18974
18975
18976
18977
18978
18979
18980
18981
18982
18983
18984
18985
18986
18987
18988
18989
18990
18991
18992
18993
18994
18995
18996
18997
18998
18999
19000
19001
19002
19003
19004
19005
19006
19007
19008
19009
19010
19011
19012
19013
19014
19015
19016
19017
19018
19019
19020
19021
19022
19023
19024
19025
19026
19027
19028
19029
19030
19031
19032
19033
19034
19035
19036
19037
19038
19039
19040
19041
19042
19043
19044
19045
19046
19047
19048
19049
19050
19051
19052
19053
19054
19055
19056
19057
19058
19059
19060
19061
19062
19063
19064
19065
19066
19067
19068
19069
19070
19071
19072
19073
19074
19075
19076
19077
19078
19079
19080
19081
19082
19083
19084
19085
19086
19087
19088
19089
19090
19091
19092
19093
19094
19095
19096
19097
19098
19099
19100
19101
19102
19103
19104
19105
19106
19107
19108
19109
19110
19111
19112
19113
19114
19115
19116
19117
19118
19119
19120
19121
19122
19123
19124
19125
19126
19127
19128
19129
19130
19131
19132
19133
19134
19135
19136
19137
19138
19139
19140
19141
19142
19143
19144
19145
19146
19147
19148
19149
19150
19151
19152
19153
19154
19155
19156
19157
19158
19159
19160
19161
19162
19163
19164
19165
19166
19167
19168
19169
19170
19171
19172
19173
19174
19175
19176
19177
19178
19179
19180
19181
19182
19183
19184
19185
19186
19187
19188
19189
19190
19191
19192
19193
19194
19195
19196
19197
19198
19199
19200
19201
19202
19203
19204
19205
19206
19207
19208
19209
19210
19211
19212
19213
19214
19215
19216
19217
19218
19219
19220
19221
19222
19223
19224
19225
19226
19227
19228
19229
19230
19231
19232
19233
19234
19235
19236
19237
19238
19239
19240
19241
19242
19243
19244
19245
19246
19247
19248
19249
19250
19251
19252
19253
19254
19255
19256
19257
19258
19259
19260
19261
19262
19263
19264
19265
19266
19267
19268
19269
19270
19271
19272
19273
19274
19275
19276
19277
19278
19279
19280
19281
19282
19283
19284
19285
19286
19287
19288
19289
19290
19291
19292
19293
19294
19295
19296
19297
19298
19299
19300
19301
19302
19303
19304
19305
19306
19307
19308
19309
19310
19311
19312
19313
19314
19315
19316
19317
19318
19319
19320
19321
19322
19323
19324
19325
19326
19327
19328
19329
19330
19331
19332
19333
19334
19335
19336
19337
19338
19339
19340
19341
19342
19343
19344
19345
19346
19347
19348
19349
19350
19351
19352
19353
19354
19355
19356
19357
19358
19359
19360
19361
19362
19363
19364
19365
19366
19367
19368
19369
19370
19371
19372
19373
19374
19375
19376
19377
19378
19379
19380
19381
19382
19383
19384
19385
19386
19387
19388
19389
19390
19391
19392
19393
19394
19395
19396
19397
19398
19399
19400
19401
19402
19403
19404
19405
19406
19407
19408
19409
19410
19411
19412
19413
19414
19415
19416
19417
19418
19419
19420
19421
19422
19423
19424
19425
19426
19427
19428
19429
19430
19431
19432
19433
19434
19435
19436
19437
19438
19439
19440
19441
19442
19443
19444
19445
19446
19447
19448
19449
19450
19451
19452
19453
19454
19455
19456
19457
19458
19459
19460
19461
19462
19463
19464
19465
19466
19467
19468
19469
19470
19471
19472
19473
19474
19475
19476
19477
19478
19479
19480
19481
19482
19483
19484
19485
19486
19487
19488
19489
19490
19491
19492
19493
19494
19495
19496
19497
19498
19499
19500
19501
19502
19503
19504
19505
19506
19507
19508
19509
19510
19511
19512
19513
19514
19515
19516
19517
19518
19519
19520
19521
19522
19523
19524
19525
19526
19527
19528
19529
19530
19531
19532
19533
19534
19535
19536
19537
19538
19539
19540
19541
19542
19543
19544
19545
19546
19547
19548
19549
19550
19551
19552
19553
19554
19555
19556
19557
19558
19559
19560
19561
19562
19563
19564
19565
19566
19567
19568
19569
19570
19571
19572
19573
19574
19575
19576
19577
19578
19579
19580
19581
19582
19583
19584
19585
19586
19587
19588
19589
19590
19591
19592
19593
19594
19595
19596
19597
19598
19599
19600
19601
19602
19603
19604
19605
19606
19607
19608
19609
19610
19611
19612
19613
19614
19615
19616
19617
19618
19619
19620
19621
19622
19623
19624
19625
19626
19627
19628
19629
19630
19631
19632
19633
19634
19635
19636
19637
19638
19639
19640
19641
19642
19643
19644
19645
19646
19647
19648
19649
19650
19651
19652
19653
19654
19655
19656
19657
19658
19659
19660
19661
19662
19663
19664
19665
19666
19667
19668
19669
19670
19671
19672
19673
19674
19675
19676
19677
19678
19679
19680
19681
19682
19683
19684
19685
19686
19687
19688
19689
19690
19691
19692
19693
19694
19695
19696
19697
19698
19699
19700
19701
19702
19703
19704
19705
19706
19707
19708
19709
19710
19711
19712
19713
19714
19715
19716
19717
19718
19719
19720
19721
19722
19723
19724
19725
19726
19727
19728
19729
19730
19731
19732
19733
19734
19735
19736
19737
19738
19739
19740
19741
19742
19743
19744
19745
19746
19747
19748
19749
19750
19751
19752
19753
19754
19755
19756
19757
19758
19759
19760
19761
19762
19763
19764
19765
19766
19767
19768
19769
19770
19771
19772
19773
19774
19775
19776
19777
19778
19779
19780
19781
19782
19783
19784
19785
19786
19787
19788
19789
19790
19791
19792
19793
19794
19795
19796
19797
19798
19799
19800
19801
19802
19803
19804
19805
19806
19807
19808
19809
19810
19811
19812
19813
19814
19815
19816
19817
19818
19819
19820
19821
19822
19823
19824
19825
19826
19827
19828
19829
19830
19831
19832
19833
19834
19835
19836
19837
19838
19839
19840
19841
19842
19843
19844
19845
19846
19847
19848
19849
19850
19851
19852
19853
19854
19855
19856
19857
19858
19859
19860
19861
19862
19863
19864
19865
19866
19867
19868
19869
19870
19871
19872
19873
19874
19875
19876
19877
19878
19879
19880
19881
19882
19883
19884
19885
19886
19887
19888
19889
19890
19891
19892
19893
19894
19895
19896
19897
19898
19899
19900
19901
19902
19903
19904
19905
19906
19907
19908
19909
19910
19911
19912
19913
19914
19915
19916
19917
19918
19919
19920
19921
19922
19923
19924
19925
19926
19927
19928
19929
19930
19931
19932
19933
19934
19935
19936
19937
19938
19939
19940
19941
19942
19943
19944
19945
19946
19947
19948
19949
19950
19951
19952
19953
19954
19955
19956
19957
19958
19959
19960
19961
19962
19963
19964
19965
19966
19967
19968
19969
19970
19971
19972
19973
19974
19975
19976
19977
19978
19979
19980
19981
19982
19983
19984
19985
19986
19987
19988
19989
19990
19991
19992
19993
19994
19995
19996
19997
19998
19999
20000
20001
20002
20003
20004
20005
20006
20007
20008
20009
20010
20011
20012
20013
20014
20015
20016
20017
20018
20019
20020
20021
20022
20023
20024
20025
20026
20027
20028
20029
20030
20031
20032
20033
20034
20035
20036
20037
20038
20039
20040
20041
20042
20043
20044
20045
20046
20047
20048
20049
20050
20051
20052
20053
20054
20055
20056
20057
20058
20059
20060
20061
20062
20063
20064
20065
20066
20067
20068
20069
20070
20071
20072
20073
20074
20075
20076
20077
20078
20079
20080
20081
20082
20083
20084
20085
20086
20087
20088
20089
20090
20091
20092
20093
20094
20095
20096
20097
20098
20099
20100
20101
20102
20103
20104
20105
20106
20107
20108
20109
20110
20111
20112
20113
20114
20115
20116
20117
20118
20119
20120
20121
20122
20123
20124
20125
20126
20127
20128
20129
20130
20131
20132
20133
20134
20135
20136
20137
20138
20139
20140
20141
20142
20143
20144
20145
20146
20147
20148
20149
20150
20151
20152
20153
20154
20155
20156
20157
20158
20159
20160
20161
20162
20163
20164
20165
20166
20167
20168
20169
20170
20171
20172
20173
20174
20175
20176
20177
20178
20179
20180
20181
20182
20183
20184
20185
20186
20187
20188
20189
20190
20191
20192
20193
20194
20195
20196
20197
20198
20199
20200
20201
20202
20203
20204
20205
20206
20207
20208
20209
20210
20211
20212
20213
20214
20215
20216
20217
20218
20219
20220
20221
20222
20223
20224
20225
20226
20227
20228
20229
20230
20231
20232
20233
20234
20235
20236
20237
20238
20239
20240
20241
20242
20243
20244
20245
20246
20247
20248
20249
20250
20251
20252
20253
20254
20255
20256
20257
20258
20259
20260
20261
20262
20263
20264
20265
20266
20267
20268
20269
20270
20271
20272
20273
20274
20275
20276
20277
20278
20279
20280
20281
20282
20283
20284
20285
20286
20287
20288
20289
20290
20291
20292
20293
20294
20295
20296
20297
20298
20299
20300
20301
20302
20303
20304
20305
20306
20307
20308
20309
20310
20311
20312
20313
20314
20315
20316
20317
20318
20319
20320
20321
20322
20323
20324
20325
20326
20327
20328
20329
20330
20331
20332
20333
20334
20335
20336
20337
20338
20339
20340
20341
20342
20343
20344
20345
20346
20347
20348
20349
20350
20351
20352
20353
20354
20355
20356
20357
20358
20359
20360
20361
20362
20363
20364
20365
20366
20367
20368
20369
20370
20371
20372
20373
20374
20375
20376
20377
20378
20379
20380
20381
20382
20383
20384
20385
20386
20387
20388
20389
20390
20391
20392
20393
20394
20395
20396
20397
20398
20399
20400
20401
20402
20403
20404
20405
20406
20407
20408
20409
20410
20411
20412
20413
20414
20415
20416
20417
20418
20419
20420
20421
20422
20423
20424
20425
20426
20427
20428
20429
20430
20431
20432
20433
20434
20435
20436
20437
20438
20439
20440
20441
20442
20443
20444
20445
20446
20447
20448
20449
20450
20451
20452
20453
20454
20455
20456
20457
20458
20459
20460
20461
20462
20463
20464
20465
20466
20467
20468
20469
20470
20471
20472
20473
20474
20475
20476
20477
20478
20479
20480
20481
20482
20483
20484
20485
20486
20487
20488
20489
20490
20491
20492
20493
20494
20495
20496
20497
20498
20499
20500
20501
20502
20503
20504
20505
20506
20507
20508
20509
20510
20511
20512
20513
20514
20515
20516
20517
20518
20519
20520
20521
20522
20523
20524
20525
20526
20527
20528
20529
20530
20531
20532
20533
20534
20535
20536
20537
20538
20539
20540
20541
20542
20543
20544
20545
20546
20547
20548
20549
20550
20551
20552
20553
20554
20555
20556
20557
20558
20559
20560
20561
20562
20563
20564
20565
20566
20567
20568
20569
20570
20571
20572
20573
20574
20575
20576
20577
20578
20579
20580
20581
20582
20583
20584
20585
20586
20587
20588
20589
20590
20591
20592
20593
20594
20595
20596
20597
20598
20599
20600
20601
20602
20603
20604
20605
20606
20607
20608
20609
20610
20611
20612
20613
20614
20615
20616
20617
20618
20619
20620
20621
20622
20623
20624
20625
20626
20627
20628
20629
20630
20631
20632
20633
20634
20635
20636
20637
20638
20639
20640
20641
20642
20643
20644
20645
20646
20647
20648
20649
20650
20651
20652
20653
20654
20655
20656
20657
20658
20659
20660
20661
20662
20663
20664
20665
20666
20667
20668
20669
20670
20671
20672
20673
20674
20675
20676
20677
20678
20679
20680
20681
20682
20683
20684
20685
20686
20687
20688
20689
20690
20691
20692
20693
20694
20695
20696
20697
20698
20699
20700
20701
20702
20703
20704
20705
20706
20707
20708
20709
20710
20711
20712
20713
20714
20715
20716
20717
20718
20719
20720
20721
20722
20723
20724
20725
20726
20727
20728
20729
20730
20731
20732
20733
20734
20735
20736
20737
20738
20739
20740
20741
20742
20743
20744
20745
20746
20747
20748
20749
20750
20751
20752
20753
20754
20755
20756
20757
20758
20759
20760
20761
20762
20763
20764
20765
20766
20767
20768
20769
20770
20771
20772
20773
20774
20775
20776
20777
20778
20779
20780
20781
20782
20783
20784
20785
20786
20787
20788
20789
20790
20791
20792
20793
20794
20795
20796
20797
20798
20799
20800
20801
20802
20803
20804
20805
20806
20807
20808
20809
20810
20811
20812
20813
20814
20815
20816
20817
20818
20819
20820
20821
20822
20823
20824
20825
20826
20827
20828
20829
20830
20831
20832
20833
20834
20835
20836
20837
20838
20839
20840
20841
20842
20843
20844
20845
20846
20847
20848
20849
20850
20851
20852
20853
20854
20855
20856
20857
20858
20859
20860
20861
20862
20863
20864
20865
20866
20867
20868
20869
20870
20871
20872
20873
20874
20875
20876
20877
20878
20879
20880
20881
20882
20883
20884
20885
20886
20887
20888
20889
20890
20891
20892
20893
20894
20895
20896
20897
20898
20899
20900
20901
20902
20903
20904
20905
20906
20907
20908
20909
20910
20911
20912
20913
20914
20915
20916
20917
20918
20919
20920
20921
20922
20923
20924
20925
20926
20927
20928
20929
20930
20931
20932
20933
20934
20935
20936
20937
20938
20939
20940
20941
20942
20943
20944
20945
20946
20947
20948
20949
20950
20951
20952
20953
20954
20955
20956
20957
20958
20959
20960
20961
20962
20963
20964
20965
20966
20967
20968
20969
20970
20971
20972
20973
20974
20975
20976
20977
20978
20979
20980
20981
20982
20983
20984
20985
20986
20987
20988
20989
20990
20991
20992
20993
20994
20995
20996
20997
20998
20999
21000
21001
21002
21003
21004
21005
21006
21007
21008
21009
21010
21011
21012
21013
21014
21015
21016
21017
21018
21019
21020
21021
21022
21023
21024
21025
21026
21027
21028
21029
21030
21031
21032
21033
21034
21035
21036
21037
21038
21039
21040
21041
21042
21043
21044
21045
21046
21047
21048
21049
21050
21051
21052
21053
21054
21055
21056
21057
21058
21059
21060
21061
21062
21063
21064
21065
21066
21067
21068
21069
21070
21071
21072
21073
21074
21075
21076
21077
21078
21079
21080
21081
21082
21083
21084
21085
21086
21087
21088
21089
21090
21091
21092
21093
21094
21095
21096
21097
21098
21099
21100
21101
21102
21103
21104
21105
21106
21107
21108
21109
21110
21111
21112
21113
21114
21115
21116
21117
21118
21119
21120
21121
21122
21123
21124
21125
21126
21127
21128
21129
21130
21131
21132
21133
21134
21135
21136
21137
21138
21139
21140
21141
21142
21143
21144
21145
21146
21147
21148
21149
21150
21151
21152
21153
21154
21155
21156
21157
21158
21159
21160
21161
21162
21163
21164
21165
21166
21167
21168
21169
21170
21171
21172
21173
21174
21175
21176
21177
21178
21179
21180
21181
21182
21183
21184
21185
21186
21187
21188
21189
21190
21191
21192
21193
21194
21195
21196
21197
21198
21199
21200
21201
21202
21203
21204
21205
21206
21207
21208
21209
21210
21211
21212
21213
21214
21215
21216
21217
21218
21219
21220
21221
21222
21223
21224
21225
21226
21227
21228
21229
21230
21231
21232
21233
21234
21235
21236
21237
21238
21239
21240
21241
21242
21243
21244
21245
21246
21247
21248
21249
21250
21251
21252
21253
21254
21255
21256
21257
21258
21259
21260
21261
21262
21263
21264
21265
21266
21267
21268
21269
21270
21271
21272
21273
21274
21275
21276
21277
21278
21279
21280
21281
21282
21283
21284
21285
21286
21287
21288
21289
21290
21291
21292
21293
21294
21295
21296
21297
21298
21299
21300
21301
21302
21303
21304
21305
21306
21307
21308
21309
21310
21311
21312
21313
21314
21315
21316
21317
21318
21319
21320
21321
21322
21323
21324
21325
21326
21327
21328
21329
21330
21331
21332
21333
21334
21335
21336
21337
21338
21339
21340
21341
21342
21343
21344
21345
21346
21347
21348
21349
21350
21351
21352
21353
21354
21355
21356
21357
21358
21359
21360
21361
21362
21363
21364
21365
21366
21367
21368
21369
21370
21371
21372
21373
21374
21375
21376
21377
21378
21379
21380
21381
21382
21383
21384
21385
21386
21387
21388
21389
21390
21391
21392
21393
21394
21395
21396
21397
21398
21399
21400
21401
21402
21403
21404
21405
21406
21407
21408
21409
21410
21411
21412
21413
21414
21415
21416
21417
21418
21419
21420
21421
21422
21423
21424
21425
21426
21427
21428
21429
21430
21431
21432
21433
21434
21435
21436
21437
21438
21439
21440
21441
21442
21443
21444
21445
21446
21447
21448
21449
21450
21451
21452
21453
21454
21455
21456
21457
21458
21459
21460
21461
21462
21463
21464
21465
21466
21467
21468
21469
21470
21471
21472
21473
21474
21475
21476
21477
21478
21479
21480
21481
21482
21483
21484
21485
21486
21487
21488
21489
21490
21491
21492
21493
21494
21495
21496
21497
21498
21499
21500
21501
21502
21503
21504
21505
21506
21507
21508
21509
21510
21511
21512
21513
21514
21515
21516
21517
21518
21519
21520
21521
21522
21523
21524
21525
21526
21527
21528
21529
21530
21531
21532
21533
21534
21535
21536
21537
21538
21539
21540
21541
21542
21543
21544
21545
21546
21547
21548
21549
21550
21551
21552
21553
21554
21555
21556
21557
21558
21559
21560
21561
21562
21563
21564
21565
21566
21567
21568
21569
21570
21571
21572
21573
21574
21575
21576
21577
21578
21579
21580
21581
21582
21583
21584
21585
21586
21587
21588
21589
21590
21591
21592
21593
21594
21595
21596
21597
21598
21599
21600
21601
21602
21603
21604
21605
21606
21607
21608
21609
21610
21611
21612
21613
21614
21615
21616
21617
21618
21619
21620
21621
21622
21623
21624
21625
21626
21627
21628
21629
21630
21631
21632
21633
21634
21635
21636
21637
21638
21639
21640
21641
21642
21643
21644
21645
21646
21647
21648
21649
21650
21651
21652
21653
21654
21655
21656
21657
21658
21659
21660
21661
21662
21663
21664
21665
21666
21667
21668
21669
21670
21671
21672
21673
21674
21675
21676
21677
21678
21679
21680
21681
21682
21683
21684
21685
21686
21687
21688
21689
21690
21691
21692
21693
21694
21695
21696
21697
21698
21699
21700
21701
21702
21703
21704
21705
21706
21707
21708
21709
21710
21711
21712
21713
21714
21715
21716
21717
21718
21719
21720
21721
21722
21723
21724
21725
21726
21727
21728
21729
21730
21731
21732
21733
21734
21735
21736
21737
21738
21739
21740
21741
21742
21743
21744
21745
21746
21747
21748
21749
21750
21751
21752
21753
21754
21755
21756
21757
21758
21759
21760
21761
21762
21763
21764
21765
21766
21767
21768
21769
21770
21771
21772
21773
21774
21775
21776
21777
21778
21779
21780
21781
21782
21783
21784
21785
21786
21787
21788
21789
21790
21791
21792
21793
21794
21795
21796
21797
21798
21799
21800
21801
21802
21803
21804
21805
21806
21807
21808
21809
21810
21811
21812
21813
21814
21815
21816
21817
21818
21819
21820
21821
21822
21823
21824
21825
21826
21827
21828
21829
21830
21831
21832
21833
21834
21835
21836
21837
21838
21839
21840
21841
21842
21843
21844
21845
21846
21847
21848
21849
21850
21851
21852
21853
21854
21855
21856
21857
21858
21859
21860
21861
21862
21863
21864
21865
21866
21867
21868
21869
21870
21871
21872
21873
21874
21875
21876
21877
21878
21879
21880
21881
21882
21883
21884
21885
21886
21887
21888
21889
21890
21891
21892
21893
21894
21895
21896
21897
21898
21899
21900
21901
21902
21903
21904
21905
21906
21907
21908
21909
21910
21911
21912
21913
21914
21915
21916
21917
21918
21919
21920
21921
21922
21923
21924
21925
21926
21927
21928
21929
21930
21931
21932
21933
21934
21935
21936
21937
21938
21939
21940
21941
21942
21943
21944
21945
21946
21947
21948
21949
21950
21951
21952
21953
21954
21955
21956
21957
21958
21959
21960
21961
21962
21963
21964
21965
21966
21967
21968
21969
21970
21971
21972
21973
21974
21975
21976
21977
21978
21979
21980
21981
21982
21983
21984
21985
21986
21987
21988
21989
21990
21991
21992
21993
21994
21995
21996
21997
21998
21999
22000
22001
22002
22003
22004
22005
22006
22007
22008
22009
22010
22011
22012
22013
22014
22015
22016
22017
22018
22019
22020
22021
22022
22023
22024
22025
22026
22027
22028
22029
22030
22031
22032
22033
22034
22035
22036
22037
22038
22039
22040
22041
22042
22043
22044
22045
22046
22047
22048
22049
22050
22051
22052
22053
22054
22055
22056
22057
22058
22059
22060
22061
22062
22063
22064
22065
22066
22067
22068
22069
22070
22071
22072
22073
22074
22075
22076
22077
22078
22079
22080
22081
22082
22083
22084
22085
22086
22087
22088
22089
22090
22091
22092
22093
22094
22095
22096
22097
22098
22099
22100
22101
22102
22103
22104
22105
22106
22107
22108
22109
22110
22111
22112
22113
22114
22115
22116
22117
22118
22119
22120
22121
22122
22123
22124
22125
22126
22127
22128
22129
22130
22131
22132
22133
22134

 
;;; org.el --- Outline-based notes management and organizer -*- lexical-binding: t; -*-

;; Carstens outline-mode for keeping track of everything.
;; Copyright (C) 2004-2024 Free Software Foundation, Inc.
;;
;; Author: Carsten Dominik <carsten.dominik@gmail.com>
;; Maintainer: Bastien Guerry <bzg@gnu.org>
;; Keywords: outlines, hypermedia, calendar, wp
;; URL: https://orgmode.org
;; Package-Requires: ((emacs "26.1"))

;; Version: 9.7-pre

;; This file is part of GNU Emacs.
;;
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
;;
;;; Commentary:
;;
;; Org is a mode for keeping notes, maintaining ToDo lists, and doing
;; project planning with a fast and effective plain-text system.
;;
;; Org mode develops organizational tasks around NOTES files that
;; contain information about projects as plain text.  Org mode is
;; implemented on top of outline-mode, which makes it possible to keep
;; the content of large files well structured.  Visibility cycling and
;; structure editing help to work with the tree.  Tables are easily
;; created with a built-in table editor.  Org mode supports ToDo
;; items, deadlines, time stamps, and scheduling.  It dynamically
;; compiles entries into an agenda that utilizes and smoothly
;; integrates much of the Emacs calendar and diary.  Plain text
;; URL-like links connect to websites, emails, Usenet messages, BBDB
;; entries, and any files related to the projects.  For printing and
;; sharing of notes, an Org file can be exported as a structured ASCII
;; file, as HTML, or (todo and agenda items only) as an iCalendar
;; file.  It can also serve as a publishing tool for a set of linked
;; webpages.
;;
;; Installation and Activation
;; ---------------------------
;; See the corresponding sections in the manual at
;;
;;   https://orgmode.org/org.html#Installation
;;
;; Documentation
;; -------------
;; The documentation of Org mode can be found in the TeXInfo file.  The
;; distribution also contains a PDF version of it.  At the Org mode website,
;; you can read the same text online as HTML.  There is also an excellent
;; reference card made by Philip Rooke.  This card can be found in the
;; doc/ directory.
;;
;; A list of recent changes can be found at
;; https://orgmode.org/Changes.html
;;
;;; Code:

(defvar org-inhibit-highlight-removal nil) ; dynamically scoped param
(defvar org-inlinetask-min-level)

;;;; Require other packages

(require 'org-compat)
(org-assert-version)

(require 'cl-lib)

(eval-when-compile (require 'gnus-sum))

(require 'calendar)
(require 'find-func)
(require 'format-spec)

(condition-case nil
    (load (concat (file-name-directory load-file-name)
		  "org-loaddefs")
	  nil t nil t)
  (error
   (message "WARNING: No org-loaddefs.el file could be found from where org.el is loaded.")
   (sit-for 3)
   (message "You need to run \"make\" or \"make autoloads\" from Org lisp directory")
   (sit-for 3)))

(eval-and-compile (require 'org-macs))
(require 'org-compat)
(require 'org-keys)
(require 'ol)
(require 'oc)
(require 'org-table)
(require 'org-fold)

(require 'org-cycle)
(defalias 'org-global-cycle #'org-cycle-global)
(defalias 'org-overview #'org-cycle-overview)
(defalias 'org-content #'org-cycle-content)
(defalias 'org-reveal #'org-fold-reveal)
(defalias 'org-force-cycle-archived #'org-cycle-force-archived)

;; `org-outline-regexp' ought to be a defconst but is let-bound in
;; some places -- e.g. see the macro `org-with-limited-levels'.
(defvar org-outline-regexp "\\*+ "
  "Regexp to match Org headlines.")

(defvar org-outline-regexp-bol "^\\*+ "
  "Regexp to match Org headlines.
This is similar to `org-outline-regexp' but additionally makes
sure that we are at the beginning of the line.")

(defvar org-heading-regexp "^\\(\\*+\\)\\(?: +\\(.*?\\)\\)?[ \t]*$"
  "Matches a headline, putting stars and text into groups.
Stars are put in group 1 and the trimmed body in group 2.")

(declare-function calendar-check-holidays "holidays" (date))
(declare-function cdlatex-environment "ext:cdlatex" (environment item))
(declare-function cdlatex-math-symbol "ext:cdlatex")
(declare-function Info-goto-node "info" (nodename &optional fork strict-case))
(declare-function isearch-no-upper-case-p "isearch" (string regexp-flag))
(declare-function org-add-archive-files "org-archive" (files))
(declare-function org-agenda-entry-get-agenda-timestamp "org-agenda" (pom))
(declare-function org-agenda-todo-yesterday "org-agenda" (&optional arg))
(declare-function org-agenda-list "org-agenda" (&optional arg start-day span with-hour))
(declare-function org-agenda-redo "org-agenda" (&optional all))
(declare-function org-agenda-remove-restriction-lock "org-agenda" (&optional noupdate))
(declare-function org-archive-subtree "org-archive" (&optional find-done))
(declare-function org-archive-subtree-default "org-archive" ())
(declare-function org-archive-to-archive-sibling "org-archive" ())
(declare-function org-attach "org-attach" ())
(declare-function org-attach-dir "org-attach"
		  (&optional create-if-not-exists-p no-fs-check))
(declare-function org-babel-do-in-edit-buffer "ob-core" (&rest body) t)
(declare-function org-babel-tangle-file "ob-tangle" (file &optional target-file lang))
(declare-function org-beamer-mode "ox-beamer" (&optional prefix) t)
(declare-function org-clock-auto-clockout "org-clock" ())
(declare-function org-clock-cancel "org-clock" ())
(declare-function org-clock-display "org-clock" (&optional arg))
(declare-function org-clock-get-last-clock-out-time "org-clock" ())
(declare-function org-clock-goto "org-clock" (&optional select))
(declare-function org-clock-in "org-clock" (&optional select start-time))
(declare-function org-clock-in-last "org-clock" (&optional arg))
(declare-function org-clock-out "org-clock" (&optional switch-to-state fail-quietly at-time))
(declare-function org-clock-out-if-current "org-clock" ())
(declare-function org-clock-remove-overlays "org-clock" (&optional beg end noremove))
(declare-function org-clock-report "org-clock" (&optional arg))
(declare-function org-clock-sum "org-clock" (&optional tstart tend headline-filter propname))
(declare-function org-clock-sum-current-item "org-clock" (&optional tstart))
(declare-function org-clock-timestamps-down "org-clock" (&optional n))
(declare-function org-clock-timestamps-up "org-clock" (&optional n))
(declare-function org-clock-update-time-maybe "org-clock" ())
(declare-function org-clocktable-shift "org-clock" (dir n))
(declare-function org-columns-quit "org-colview" ())
(declare-function org-columns-insert-dblock "org-colview" ())
(declare-function org-duration-from-minutes "org-duration" (minutes &optional fmt canonical))
(declare-function org-duration-to-minutes "org-duration" (duration &optional canonical))
(declare-function org-element-at-point "org-element" (&optional pom cached-only))
(declare-function org-element-at-point-no-context "org-element" (&optional pom))
(declare-function org-element-cache-refresh "org-element" (pos))
(declare-function org-element-cache-reset "org-element" (&optional all no-persistence))
(declare-function org-element-cache-map "org-element" (func &rest keys))
(declare-function org-element-contents "org-element-ast" (node))
(declare-function org-element-context "org-element" (&optional element))
(declare-function org-element-copy "org-element-ast" (datum))
(declare-function org-element-create "org-element-ast" (type &optional props &rest children))
(declare-function org-element-extract "org-element-ast" (node))
(declare-function org-element-insert-before "org-element-ast" (node location))
(declare-function org-element-interpret-data "org-element" (data))
(declare-function org-element-keyword-parser "org-element" (limit affiliated))
(declare-function org-element-lineage "org-element-ast" (blob &optional types with-self))
(declare-function org-element-property-inherited "org-element-ast"
                  (property node &optional with-self accumulate literal-nil include-nil))
(declare-function org-element-lineage-map "org-element-ast"
                  (datum fun &optional types with-self first-match))
(declare-function org-element-link-parser "org-element" ())
(declare-function org-element-map "org-element" (data types fun &optional info first-match no-recursion with-affiliated))
(declare-function org-element-nested-p "org-element" (elem-a elem-b))
(declare-function org-element-parse-buffer "org-element" (&optional granularity visible-only keep-deferred))
(declare-function org-element-parse-secondary-string "org-element" (string restriction &optional parent))
(declare-function org-element-property "org-element-ast" (property node))
(declare-function org-element-begin "org-element" (node))
(declare-function org-element-end "org-element" (node))
(declare-function org-element-contents-begin "org-element" (node))
(declare-function org-element-contents-end "org-element" (node))
(declare-function org-element-post-affiliated "org-element" (node))
(declare-function org-element-post-blank "org-element" (node))
(declare-function org-element-parent "org-element-ast" (node))
(declare-function org-element-put-property "org-element-ast" (node property value))
(declare-function org-element-restriction "org-element" (element))
(declare-function org-element-swap-A-B "org-element" (elem-a elem-b))
(declare-function org-element-timestamp-parser "org-element" ())
(declare-function org-element-type "org-element-ast" (node &optional anonymous))
(declare-function org-element-type-p "org-element-ast" (node types))
(declare-function org-export-dispatch "ox" (&optional arg))
(declare-function org-export-get-backend "ox" (name))
(declare-function org-export-get-environment "ox" (&optional backend subtreep ext-plist))
(declare-function org-feed-goto-inbox "org-feed" (feed))
(declare-function org-feed-update-all "org-feed" ())
(declare-function org-goto "org-goto" (&optional alternative-interface))
(declare-function org-id-find-id-file "org-id" (id))
(declare-function org-id-get-create "org-id" (&optional force))
(declare-function org-inlinetask-at-task-p "org-inlinetask" ())
(declare-function org-inlinetask-outline-regexp "org-inlinetask" ())
(declare-function org-inlinetask-toggle-visibility "org-inlinetask" ())
(declare-function org-latex-make-preamble "ox-latex" (info &optional template snippet?))
(declare-function org-num-mode "org-num" (&optional arg))
(declare-function org-plot/gnuplot "org-plot" (&optional params))
(declare-function org-persist-load "org-persist")
(declare-function org-tags-view "org-agenda" (&optional todo-only match))
(declare-function org-timer "org-timer" (&optional restart no-insert))
(declare-function org-timer-item "org-timer" (&optional arg))
(declare-function org-timer-pause-or-continue "org-timer" (&optional stop))
(declare-function org-timer-set-timer "org-timer" (&optional opt))
(declare-function org-timer-start "org-timer" (&optional offset))
(declare-function org-timer-stop "org-timer" ())
(declare-function org-toggle-archive-tag "org-archive" (&optional find-done))
(declare-function org-update-radio-target-regexp "ol" ())

(defvar org-agenda-buffer-name)
(defvar org-element-paragraph-separate)
(defvar org-element-cache-map-continue-from)
(defvar org-element--timestamp-regexp)
(defvar org-indent-indentation-per-level)
(defvar org-radio-target-regexp)
(defvar org-target-link-regexp)
(defvar org-target-regexp)
(defvar org-id-overriding-file-name)

;; load languages based on value of `org-babel-load-languages'
(defvar org-babel-load-languages)

(defvar crm-separator)  ; dynamically scoped param

;;;###autoload
(defun org-babel-do-load-languages (sym value)
  "Load the languages defined in `org-babel-load-languages'."
  (set-default-toplevel-value sym value)
  (dolist (pair org-babel-load-languages)
    (let ((active (cdr pair)) (lang (symbol-name (car pair))))
      (if active
	  (require (intern (concat "ob-" lang)))
	(fmakunbound
	 (intern (concat "org-babel-execute:" lang)))
	(fmakunbound
	 (intern (concat "org-babel-expand-body:" lang)))))))


;;;###autoload
(defun org-babel-load-file (file &optional compile)
  "Load Emacs Lisp source code blocks in the Org FILE.
This function exports the source code using `org-babel-tangle'
and then loads the resulting file using `load-file'.  With
optional prefix argument COMPILE, the tangled Emacs Lisp file is
byte-compiled before it is loaded."
  (interactive "fFile to load: \nP")
  (let ((tangled-file (concat (file-name-sans-extension file) ".el")))
    ;; Tangle only if the Elisp file is older than the Org file.
    ;; Catch the case when the .el file exists while the .org file is missing.
    (unless (file-exists-p file)
      (error "File to tangle does not exist: %s" file))
    (when (file-newer-than-file-p file tangled-file)
      (org-babel-tangle-file file
                             tangled-file
                             (rx string-start
                                 (or "emacs-lisp" "elisp")
                                 string-end))
      ;; Make sure that tangled file modification time is
      ;; updated even when `org-babel-tangle-file' does not make changes.
      ;; This avoids re-tangling changed FILE where the changes did
      ;; not affect the tangled code.
      (when (file-exists-p tangled-file)
        (set-file-times tangled-file)))
    (if compile
	(progn
	  (byte-compile-file tangled-file)
	  (load-file (byte-compile-dest-file tangled-file))
	  (message "Compiled and loaded %s" tangled-file))
      (load-file tangled-file)
      (message "Loaded %s" tangled-file))))

(defcustom org-babel-load-languages '((emacs-lisp . t))
  "Languages which can be evaluated in Org buffers.
\\<org-mode-map>
This list can be used to load support for any of the available
languages with babel support (see info node `(org) Languages').  Each
language will depend on a different set of system executables and/or
Emacs modes.

When a language is \"loaded\", code blocks in that language can
be evaluated with `org-babel-execute-src-block', which is bound
by default to \\[org-ctrl-c-ctrl-c].

The `org-babel-no-eval-on-ctrl-c-ctrl-c' option can be set to
remove code block evaluation from \\[org-ctrl-c-ctrl-c].  By
default, only Emacs Lisp is loaded, since it has no specific
requirement."
  :group 'org-babel
  :set 'org-babel-do-load-languages
  :package-version '(Org . "9.6")
  :type '(alist :tag "Babel Languages"
		:key-type
		(choice
		 (const :tag "Awk" awk)
		 (const :tag "C, D, C++, and cpp" C)
		 (const :tag "R" R)
                 (const :tag "Calc" calc)
		 (const :tag "Clojure and ClojureScript" clojure)
		 (const :tag "CSS" css)
		 (const :tag "Ditaa" ditaa)
		 (const :tag "Dot" dot)
                 (const :tag "Emacs Lisp" emacs-lisp)
                 (const :tag "Eshell" eshell)
		 (const :tag "Forth" forth)
		 (const :tag "Fortran" fortran)
		 (const :tag "GnuPlot" gnuplot)
		 (const :tag "Groovy" groovy)
		 (const :tag "Haskell" haskell)
                 (const :tag "Java" java)
		 (const :tag "JavaScript" js)
                 (const :tag "Julia" julia)
                 (const :tag "LaTeX" latex)
                 (const :tag "LilyPond" lilypond)
		 (const :tag "Lisp" lisp)
                 (const :tag "Lua" lua)
		 (const :tag "Makefile" makefile)
		 (const :tag "Maxima" maxima)
                 (const :tag "OCaml" ocaml)
		 (const :tag "Octave and MatLab" octave)
		 (const :tag "Org" org)
		 (const :tag "Perl" perl)
                 (const :tag "Processing" processing)
		 (const :tag "PlantUML" plantuml)
		 (const :tag "Python" python)
		 (const :tag "Ruby" ruby)
		 (const :tag "Sass" sass)
		 (const :tag "Scheme" scheme)
		 (const :tag "Screen" screen)
                 (const :tag "Sed" sed)
		 (const :tag "Shell Script" shell)
                 (const :tag "Sql" sql)
		 (const :tag "Sqlite" sqlite))
		:value-type (boolean :tag "Activate" :value t)))

;;;; Customization variables
(defcustom org-clone-delete-id nil
  "Remove ID property of clones of a subtree.
When non-nil, clones of a subtree don't inherit the ID property.
Otherwise they inherit the ID property with a new unique
identifier."
  :type 'boolean
  :version "24.1"
  :group 'org-id)

;;; Version
(org-check-version)

;;;###autoload
(defun org-version (&optional here full message)
  "Show the Org version.
Interactively, or when MESSAGE is non-nil, show it in echo area.
With prefix argument, or when HERE is non-nil, insert it at point.
In non-interactive uses, a reduced version string is output unless
FULL is given."
  (interactive (list current-prefix-arg t (not current-prefix-arg)))
  (let ((org-dir (ignore-errors (org-find-library-dir "org")))
        (save-load-suffixes load-suffixes)
	(load-suffixes (list ".el"))
	(org-install-dir
	 (ignore-errors (org-find-library-dir "org-loaddefs"))))
    (unless (and (fboundp 'org-release) (fboundp 'org-git-version))
      (org-load-noerror-mustsuffix (concat org-dir "org-version")))
    (let* ((load-suffixes save-load-suffixes)
	   (release (org-release))
	   (git-version (org-git-version))
	   (version (format "Org mode version %s (%s @ %s)"
			    release
			    git-version
			    (if org-install-dir
				(if (string= org-dir org-install-dir)
				    org-install-dir
				  (concat "mixed installation! "
					  org-install-dir
					  " and "
					  org-dir))
			      "org-loaddefs.el can not be found!")))
	   (version1 (if full version release)))
      (when here (insert version1))
      (when message (message "%s" version1))
      version1)))

(defconst org-version (org-version))

\f
;;; Syntax Constants
;;;; Comments
(defconst org-comment-regexp
  (rx (seq bol (zero-or-more (any "\t ")) "#" (or " " eol)))
  "Regular expression for comment lines.")

;;;; Keyword
(defconst org-keyword-regexp "^[ \t]*#\\+\\(\\S-+?\\):[ \t]*\\(.*\\)$"
  "Regular expression for keyword-lines.")

;;;; Block

(defconst org-block-regexp
  "^[ \t]*#\\+begin_?\\([^ \n]+\\)\\(\\([^\n]+\\)\\)?\n\\(\\(?:.\\|\n\\)+?\\)#\\+end_?\\1[ \t]*$"
  "Regular expression for hiding blocks.")

(defconst org-dblock-start-re
  "^[ \t]*#\\+\\(?:BEGIN\\|begin\\):[ \t]+\\(\\S-+\\)\\([ \t]+\\(.*\\)\\)?"
  "Matches the start line of a dynamic block, with parameters.")

(defconst org-dblock-end-re "^[ \t]*#\\+\\(?:END\\|end\\)\\([: \t\r\n]\\|$\\)"
  "Matches the end of a dynamic block.")

;;;; Timestamp

(defconst org-ts--internal-regexp
  (rx (seq
       (= 4 digit) "-" (= 2 digit) "-" (= 2 digit)
       (optional " " (*? nonl))))
  "Regular expression matching the innards of a time stamp.")

(defconst org-ts-regexp (format "<\\(%s\\)>" org-ts--internal-regexp)
  "Regular expression for fast time stamp matching.")

(defconst org-ts-regexp-inactive
  (format "\\[\\(%s\\)\\]" org-ts--internal-regexp)
  "Regular expression for fast inactive time stamp matching.")

(defconst org-ts-regexp-both (format "[[<]\\(%s\\)[]>]" org-ts--internal-regexp)
  "Regular expression for fast time stamp matching.")

(defconst org-ts-regexp0
  "\\(\\([0-9]\\{4\\}\\)-\\([0-9]\\{2\\}\\)-\\([0-9]\\{2\\}\\)\\( +[^]+0-9>\r\n -]+\\)?\\( +\\([0-9]\\{1,2\\}\\):\\([0-9]\\{2\\}\\)\\)?\\)"
  "Regular expression matching time strings for analysis.
This one does not require the space after the date, so it can be used
on a string that terminates immediately after the date.")

(defconst org-ts-regexp1 "\\(\\([0-9]\\{4\\}\\)-\\([0-9]\\{2\\}\\)-\\([0-9]\\{2\\}\\)\\(?: *\\([^]+0-9>\r\n -]+\\)\\)?\\( \\([0-9]\\{1,2\\}\\):\\([0-9]\\{2\\}\\)\\)?\\)"
  "Regular expression matching time strings for analysis.")

(defconst org-ts-regexp2 (concat "<" org-ts-regexp1 "[^>\n]\\{0,16\\}>")
  "Regular expression matching time stamps, with groups.")

(defconst org-ts-regexp3 (concat "[[<]" org-ts-regexp1 "[^]>\n]\\{0,16\\}[]>]")
  "Regular expression matching time stamps (also [..]), with groups.")

(defconst org-tr-regexp (concat org-ts-regexp "--?-?" org-ts-regexp)
  "Regular expression matching a time stamp range.")

(defconst org-tr-regexp-both
  (concat org-ts-regexp-both "--?-?" org-ts-regexp-both)
  "Regular expression matching a time stamp range.")

(defconst org-tsr-regexp (concat org-ts-regexp "\\(--?-?"
				 org-ts-regexp "\\)?")
  "Regular expression matching a time stamp or time stamp range.")

(defconst org-tsr-regexp-both
  (concat org-ts-regexp-both "\\(--?-?"
	  org-ts-regexp-both "\\)?")
  "Regular expression matching a time stamp or time stamp range.
The time stamps may be either active or inactive.")

(defconst org-repeat-re
  "<[0-9]\\{4\\}-[0-9][0-9]-[0-9][0-9] [^>\n]*?\
\\([.+]?\\+[0-9]+[hdwmy]\\(/[0-9]+[hdwmy]\\)?\\)"
  "Regular expression for specifying repeated events.
After a match, group 1 contains the repeat expression.")

(defvaralias 'org-time-stamp-formats 'org-timestamp-formats)
(defconst org-timestamp-formats '("%Y-%m-%d %a" . "%Y-%m-%d %a %H:%M")
  "Formats for `format-time-string' which are used for time stamps.

The value is a cons cell containing two strings.  The `car' and `cdr'
of the cons cell are used to format time stamps that do not and do
contain time, respectively.

Leading \"<\"/\"[\" and trailing \">\"/\"]\" pair will be stripped
from the format strings.

Also, see `org-time-stamp-format'.")

;;;; Clock and Planning

(defconst org-clock-string "CLOCK:"
  "String used as prefix for timestamps clocking work hours on an item.")

(defvar org-closed-string "CLOSED:"
  "String used as the prefix for timestamps logging closing a TODO entry.")

(defvar org-deadline-string "DEADLINE:"
  "String to mark deadline entries.
\\<org-mode-map>
A deadline is this string, followed by a time stamp.  It must be
a word, terminated by a colon.  You can insert a schedule keyword
and a timestamp with `\\[org-deadline]'.")

(defvar org-scheduled-string "SCHEDULED:"
  "String to mark scheduled TODO entries.
\\<org-mode-map>
A schedule is this string, followed by a time stamp.  It must be
a word, terminated by a colon.  You can insert a schedule keyword
and a timestamp with `\\[org-schedule]'.")

(defconst org-ds-keyword-length
  (+ 2
     (apply #'max
	    (mapcar #'length
		    (list org-deadline-string org-scheduled-string
			  org-clock-string org-closed-string))))
  "Maximum length of the DEADLINE and SCHEDULED keywords.")

(defconst org-planning-line-re
  (concat "^[ \t]*"
	  (regexp-opt
	   (list org-closed-string org-deadline-string org-scheduled-string)
	   t))
  "Matches a line with planning info.
Matched keyword is in group 1.")

(defconst org-clock-line-re
  (concat "^[ \t]*" org-clock-string)
  "Matches a line with clock info.")

(defconst org-deadline-regexp (concat "\\<" org-deadline-string)
  "Matches the DEADLINE keyword.")

(defconst org-deadline-time-regexp
  (concat "\\<" org-deadline-string " *<\\([^>]+\\)>")
  "Matches the DEADLINE keyword together with a time stamp.")

(defconst org-deadline-time-hour-regexp
  (concat "\\<" org-deadline-string
	  " *<\\([^>]+[0-9]\\{1,2\\}:[0-9]\\{2\\}[0-9+:hdwmy/ \t.-]*\\)>")
  "Matches the DEADLINE keyword together with a time-and-hour stamp.")

(defconst org-deadline-line-regexp
  (concat "\\<\\(" org-deadline-string "\\).*")
  "Matches the DEADLINE keyword and the rest of the line.")

(defconst org-scheduled-regexp (concat "\\<" org-scheduled-string)
  "Matches the SCHEDULED keyword.")

(defconst org-scheduled-time-regexp
  (concat "\\<" org-scheduled-string " *<\\([^>]+\\)>")
  "Matches the SCHEDULED keyword together with a time stamp.")

(defconst org-scheduled-time-hour-regexp
  (concat "\\<" org-scheduled-string
	  " *<\\([^>]+[0-9]\\{1,2\\}:[0-9]\\{2\\}[0-9+:hdwmy/ \t.-]*\\)>")
  "Matches the SCHEDULED keyword together with a time-and-hour stamp.")

(defconst org-closed-time-regexp
  (concat "\\<" org-closed-string " *\\[\\([^]]+\\)\\]")
  "Matches the CLOSED keyword together with a time stamp.")

(defconst org-keyword-time-regexp
  (concat "\\<"
	  (regexp-opt
	   (list org-scheduled-string org-deadline-string org-closed-string
		 org-clock-string)
	   t)
	  " *[[<]\\([^]>]+\\)[]>]")
  "Matches any of the 4 keywords, together with the time stamp.")

(defconst org-keyword-time-not-clock-regexp
  (concat
   "\\<"
   (regexp-opt
    (list org-scheduled-string org-deadline-string org-closed-string) t)
   " *[[<]\\([^]>]+\\)[]>]")
  "Matches any of the 3 keywords, together with the time stamp.")

(defconst org-all-time-keywords
  (mapcar (lambda (w) (substring w 0 -1))
	  (list org-scheduled-string org-deadline-string
		org-clock-string org-closed-string))
  "List of time keywords.")

;;;; Drawer

(defconst org-drawer-regexp
  ;; FIXME: Duplicate of `org-element-drawer-re'.
  (rx line-start (0+ (any ?\s ?\t))
      ":" (group (1+ (any ?- ?_ word))) ":"
      (0+ (any ?\s ?\t)) line-end)
  "Matches first or last line of a hidden block.
Group 1 contains drawer's name or \"END\".")

(defconst org-property-start-re "^[ \t]*:PROPERTIES:[ \t]*$"
  "Regular expression matching the first line of a property drawer.")

(defconst org-property-end-re "^[ \t]*:END:[ \t]*$"
  "Regular expression matching the last line of a property drawer.")

(defconst org-clock-drawer-start-re "^[ \t]*:CLOCK:[ \t]*$"
  "Regular expression matching the first line of a clock drawer.")

(defconst org-clock-drawer-end-re "^[ \t]*:END:[ \t]*$"
  "Regular expression matching the last line of a clock drawer.")

(defconst org-logbook-drawer-re
  (rx (seq bol (0+ (any "\t ")) ":LOGBOOK:" (0+ (any "\t ")) "\n"
	   (*? (0+ nonl) "\n")
	   (0+ (any "\t ")) ":END:" (0+ (any "\t ")) eol))
  "Matches an entire LOGBOOK drawer.")

(defconst org-property-drawer-re
  (concat "^[ \t]*:PROPERTIES:[ \t]*\n"
	  "\\(?:[ \t]*:\\S-+:\\(?:[ \t].*\\)?[ \t]*\n\\)*?"
	  "[ \t]*:END:[ \t]*$")
  "Matches an entire property drawer.")

(defconst org-clock-drawer-re
  (concat "\\(" org-clock-drawer-start-re "\\)\\(?:.\\|\n\\)*?\\("
	  org-clock-drawer-end-re "\\)\n?")
  "Matches an entire clock drawer.")

;;;; Headline

(defconst org-heading-keyword-regexp-format
  "^\\(\\*+\\)\\(?: +%s\\)\\(?: +\\(.*?\\)\\)?[ \t]*$"
  "Printf format for a regexp matching a headline with some keyword.
This regexp will match the headline of any node which has the
exact keyword that is put into the format.  The keyword isn't in
any group by default, but the stars and the body are.")

(defconst org-heading-keyword-maybe-regexp-format
  "^\\(\\*+\\)\\(?: +%s\\)?\\(?: +\\(.*?\\)\\)?[ \t]*$"
  "Printf format for a regexp matching a headline, possibly with some keyword.
This regexp can match any headline with the specified keyword, or
without a keyword.  The keyword isn't in any group by default,
but the stars and the body are.")

(defconst org-archive-tag "ARCHIVE"
  "The tag that marks a subtree as archived.
An archived subtree does not open during visibility cycling, and does
not contribute to the agenda listings.")

(defconst org-tag-re "[[:alnum:]_@#%]+"
  "Regexp matching a single tag.")

(defconst org-tag-group-re "[ \t]+\\(:\\([[:alnum:]_@#%:]+\\):\\)[ \t]*$"
  "Regexp matching the tag group at the end of a line, with leading spaces.
Tags are stored in match group 1.  Match group 2 stores the tags
without the enclosing colons.")

(defconst org-tag-line-re
  "^\\*+ \\(?:.*[ \t]\\)?\\(:\\([[:alnum:]_@#%:]+\\):\\)[ \t]*$"
  "Regexp matching tags in a headline.
Tags are stored in match group 1.  Match group 2 stores the tags
without the enclosing colons.")

(eval-and-compile
  (defconst org-comment-string "COMMENT"
    "Entries starting with this keyword will never be exported.
\\<org-mode-map>
An entry can be toggled between COMMENT and normal with
`\\[org-toggle-comment]'."))


;;;; LaTeX Environments and Fragments

(defconst org-latex-regexps
  '(("begin" "^[ \t]*\\(\\\\begin{\\([a-zA-Z0-9\\*]+\\)\\(?:.\\|\n\\)+?\\\\end{\\2}\\)" 1 t)
    ;; ("$" "\\([ \t(]\\|^\\)\\(\\(\\([$]\\)\\([^ \t\n,.$].*?\\(\n.*?\\)\\{0,5\\}[^ \t\n,.$]\\)\\4\\)\\)\\([ \t.,?;:'\")]\\|$\\)" 2 nil)
    ("$1" "\\([^$]\\|^\\)\\(\\$[^ \t\r\n,;.$]\\$\\)\\(\\s.\\|\\s-\\|\\s(\\|\\s)\\|\\s\"\\|'\\|$\\)" 2 nil)
    ("$"  "\\([^$]\\|^\\)\\(\\(\\$\\([^ \t\n,;.$][^$\n\r]*?\\(\n[^$\n\r]*?\\)\\{0,2\\}[^ \t\n,.$]\\)\\$\\)\\)\\(\\s.\\|\\s-\\|\\s(\\|\\s)\\|\\s\"\\|'\\|$\\)" 2 nil)
    ("\\(" "\\\\(\\(?:.\\|\n\\)*?\\\\)" 0 nil)
    ("\\[" "\\\\\\[\\(?:.\\|\n\\)*?\\\\\\]" 0 nil)
    ("$$" "\\$\\$\\(?:.\\|\n\\)*?\\$\\$" 0 nil))
  "Regular expressions for matching embedded LaTeX.")

;;;; Node Property

(defconst org-effort-property "Effort"
  "The property that is being used to keep track of effort estimates.
Effort estimates given in this property need to be in the format
defined in org-duration.el.")

\f
;;; The custom variables

(defgroup org nil
  "Outline-based notes management and organizer."
  :tag "Org"
  :group 'outlines
  :group 'calendar)

(defcustom org-mode-hook nil
  "Mode hook for Org mode, run after the mode was turned on."
  :group 'org
  :type 'hook)

(defcustom org-load-hook nil
  "Hook that is run after org.el has been loaded."
  :group 'org
  :type 'hook)

(make-obsolete-variable
 'org-load-hook
 "use `with-eval-after-load' instead." "9.5")

(defcustom org-log-buffer-setup-hook nil
  "Hook that is run after an Org log buffer is created."
  :group 'org
  :version "24.1"
  :type 'hook)

(defvar org-modules)  ; defined below
(defvar org-modules-loaded nil
  "Have the modules been loaded already?")

;;;###autoload
(defun org-load-modules-maybe (&optional force)
  "Load all extensions listed in `org-modules'."
  (when (or force (not org-modules-loaded))
    (dolist (ext org-modules)
      (condition-case-unless-debug nil (require ext)
	(error (message "Problems while trying to load feature `%s'" ext))))
    (setq org-modules-loaded t)))

(defun org-set-modules (var value)
  "Set VAR to VALUE and call `org-load-modules-maybe' with the force flag."
  (set-default-toplevel-value var value)
  (when (featurep 'org)
    (org-load-modules-maybe 'force)
    ;; FIXME: We can't have all the requires at top-level due to
    ;; circular dependencies.  Yet, this function might sometimes be
    ;; called when 'org-element is not loaded.
    (require 'org-element)
    (org-element-cache-reset 'all)))

(defcustom org-modules '(ol-doi ol-w3m ol-bbdb ol-bibtex ol-docview ol-gnus ol-info ol-irc ol-mhe ol-rmail ol-eww)
  "Modules that should always be loaded together with org.el.

If a description starts with <C>, the file is not part of Emacs and Org mode,
so loading it will require that you have properly installed org-contrib
package from NonGNU Emacs Lisp Package Archive
https://elpa.nongnu.org/nongnu/org-contrib.html

You can also use this system to load external packages (i.e. neither Org
core modules, nor org-contrib modules).  Just add symbols
to the end of the list.  If the package is called org-xyz.el, then you need
to add the symbol `xyz', and the package must have a call to:

   (provide \\='org-xyz)

For export specific modules, see also `org-export-backends'."
  :group 'org
  :set 'org-set-modules
  :package-version '(Org . "9.5")
  :type
  '(set :greedy t
	(const :tag "   bbdb:              Links to BBDB entries" ol-bbdb)
	(const :tag "   bibtex:            Links to BibTeX entries" ol-bibtex)
	(const :tag "   crypt:             Encryption of subtrees" org-crypt)
	(const :tag "   ctags:             Access to Emacs tags with links" org-ctags)
	(const :tag "   docview:           Links to Docview buffers" ol-docview)
        (const :tag "   doi:               Links to DOI references" ol-doi)
	(const :tag "   eww:               Store link to URL of Eww" ol-eww)
	(const :tag "   gnus:              Links to GNUS folders/messages" ol-gnus)
	(const :tag "   habit:             Track your consistency with habits" org-habit)
	(const :tag "   id:                Global IDs for identifying entries" org-id)
	(const :tag "   info:              Links to Info nodes" ol-info)
	(const :tag "   inlinetask:        Tasks independent of outline hierarchy" org-inlinetask)
	(const :tag "   irc:               Links to IRC/ERC chat sessions" ol-irc)
	(const :tag "   mhe:               Links to MHE folders/messages" ol-mhe)
	(const :tag "   mouse:             Additional mouse support" org-mouse)
	(const :tag "   protocol:          Intercept calls from emacsclient" org-protocol)
	(const :tag "   rmail:             Links to RMAIL folders/messages" ol-rmail)
	(const :tag "   tempo:             Fast completion for structures" org-tempo)
	(const :tag "   w3m:               Special cut/paste from w3m to Org mode." ol-w3m)
	(const :tag "   eshell:            Links to working directories in Eshell" ol-eshell)

	(const :tag "C  annotate-file:     Annotate a file with Org syntax" org-annotate-file)
	(const :tag "C  bookmark:          Links to bookmarks" ol-bookmark)
	(const :tag "C  checklist:         Extra functions for checklists in repeated tasks" org-checklist)
	(const :tag "C  choose:            Use TODO keywords to mark decisions states" org-choose)
	(const :tag "C  collector:         Collect properties into tables" org-collector)
	(const :tag "C  depend:            TODO dependencies for Org mode\n\t\t\t(PARTIALLY OBSOLETE, see built-in dependency support))" org-depend)
	(const :tag "C  elisp-symbol:      Links to emacs-lisp symbols" ol-elisp-symbol)
	(const :tag "C  eval-light:        Evaluate inbuffer-code on demand" org-eval-light)
	(const :tag "C  eval:              Include command output as text" org-eval)
	(const :tag "C  expiry:            Expiry mechanism for Org entries" org-expiry)
	(const :tag "C  git-link:          Links to specific file version" ol-git-link)
	(const :tag "C  interactive-query: Interactive modification of tags query\n\t\t\t(PARTIALLY OBSOLETE, see secondary filtering)" org-interactive-query)
        (const :tag "C  invoice:           Help manage client invoices in Org mode" org-invoice)
	(const :tag "C  learn:             SuperMemo's incremental learning algorithm" org-learn)
	(const :tag "C  mac-iCal:          Imports events from iCal.app to the Emacs diary" org-mac-iCal)
	(const :tag "C  mac-link:          Grab links and url from various mac Applications" org-mac-link)
	(const :tag "C  mairix:            Hook mairix search into Org for different MUAs" org-mairix)
	(const :tag "C  man:               Links to man pages in Org mode" ol-man)
	(const :tag "C  mew:               Links to Mew folders/messages" ol-mew)
	(const :tag "C  notify:            Notifications for Org mode" org-notify)
	(const :tag "C  notmuch:           Provide Org links to notmuch searches or messages" ol-notmuch)
	(const :tag "C  panel:             Simple routines for us with bad memory" org-panel)
	(const :tag "C  registry:          A registry for Org links" org-registry)
	(const :tag "C  screen:            Visit screen sessions through links" org-screen)
	(const :tag "C  screenshot:        Take and manage screenshots in Org files" org-screenshot)
	(const :tag "C  secretary:         Team management with Org" org-secretary)
	(const :tag "C  sqlinsert:         Convert Org tables to SQL insertions" orgtbl-sqlinsert)
	(const :tag "C  toc:               Table of contents for Org buffer" org-toc)
	(const :tag "C  track:             Keep up with Org mode development" org-track)
	(const :tag "C  velocity           Something like Notational Velocity for Org" org-velocity)
	(const :tag "C  vm:                Links to VM folders/messages" ol-vm)
	(const :tag "C  wikinodes:         CamelCase wiki-like links" org-wikinodes)
	(const :tag "C  wl:                Links to Wanderlust folders/messages" ol-wl)
	(repeat :tag "External packages" :inline t (symbol :tag "Package"))))

(defvar org-export-registered-backends) ; From ox.el.
(declare-function org-export-derived-backend-p "ox" (backend &rest backends))
(declare-function org-export-backend-name "ox" (backend) t)
(defcustom org-export-backends '(ascii html icalendar latex odt)
  "List of export backends that should be always available.

If a description starts with <C>, the file is not part of Emacs and Org mode,
so loading it will require that you have properly installed org-contrib
package from NonGNU Emacs Lisp Package Archive
https://elpa.nongnu.org/nongnu/org-contrib.html

Unlike to `org-modules', libraries in this list will not be
loaded along with Org, but only once the export framework is
needed.

This variable needs to be set before org.el is loaded.  If you
need to make a change while Emacs is running, use the customize
interface or run the following code, where VAL stands for the new
value of the variable, after updating it:

  (progn
    (setq org-export-registered-backends
          (cl-remove-if-not
           (lambda (backend)
             (let ((name (org-export-backend-name backend)))
               (or (memq name val)
                   (catch \\='parentp
                     (dolist (b val)
                       (and (org-export-derived-backend-p b name)
                            (throw \\='parentp t)))))))
           org-export-registered-backends))
    (let ((new-list (mapcar #\\='org-export-backend-name
                            org-export-registered-backends)))
      (dolist (backend val)
        (cond
         ((not (load (format \"ox-%s\" backend) t t))
          (message \"Problems while trying to load export backend \\=`%s\\='\"
                   backend))
         ((not (memq backend new-list)) (push backend new-list))))
      (set-default \\='org-export-backends new-list)))

Adding a backend to this list will also pull the backend it
depends on, if any."
  :group 'org
  :group 'org-export
  :version "26.1"
  :package-version '(Org . "9.0")
  :initialize 'custom-initialize-set
  :set (lambda (var val)
	 (if (not (featurep 'ox)) (set-default-toplevel-value var val)
	   ;; Any backend not required anymore (not present in VAL and not
	   ;; a parent of any backend in the new value) is removed from the
	   ;; list of registered backends.
	   (setq org-export-registered-backends
		 (cl-remove-if-not
		  (lambda (backend)
		    (let ((name (org-export-backend-name backend)))
		      (or (memq name val)
			  (catch 'parentp
			    (dolist (b val)
			      (and (org-export-derived-backend-p b name)
				   (throw 'parentp t)))))))
		  org-export-registered-backends))
	   ;; Now build NEW-LIST of both new backends and required
	   ;; parents.
	   (let ((new-list (mapcar #'org-export-backend-name
				   org-export-registered-backends)))
	     (dolist (backend val)
	       (cond
		((not (load (format "ox-%s" backend) t t))
		 (message "Problems while trying to load export backend `%s'"
			  backend))
		((not (memq backend new-list)) (push backend new-list))))
	     ;; Set VAR to that list with fixed dependencies.
	     (set-default-toplevel-value var new-list))))
  :type '(set :greedy t
	      (const :tag "   ascii       Export buffer to ASCII format" ascii)
	      (const :tag "   beamer      Export buffer to Beamer presentation" beamer)
	      (const :tag "   html        Export buffer to HTML format" html)
	      (const :tag "   icalendar   Export buffer to iCalendar format" icalendar)
	      (const :tag "   latex       Export buffer to LaTeX format" latex)
	      (const :tag "   man         Export buffer to MAN format" man)
	      (const :tag "   md          Export buffer to Markdown format" md)
	      (const :tag "   odt         Export buffer to ODT format" odt)
	      (const :tag "   org         Export buffer to Org format" org)
	      (const :tag "   texinfo     Export buffer to Texinfo format" texinfo)
	      (const :tag "C  confluence  Export buffer to Confluence Wiki format" confluence)
	      (const :tag "C  deck        Export buffer to deck.js presentations" deck)
	      (const :tag "C  freemind    Export buffer to Freemind mindmap format" freemind)
	      (const :tag "C  groff       Export buffer to Groff format" groff)
	      (const :tag "C  koma-letter Export buffer to KOMA Scrlttrl2 format" koma-letter)
	      (const :tag "C  RSS 2.0     Export buffer to RSS 2.0 format" rss)
	      (const :tag "C  s5          Export buffer to s5 presentations" s5)
	      (const :tag "C  taskjuggler Export buffer to TaskJuggler format" taskjuggler)))

(eval-after-load 'ox
  '(dolist (backend org-export-backends)
     (condition-case-unless-debug nil (require (intern (format "ox-%s" backend)))
       (error (message "Problems while trying to load export backend `%s'"
		       backend)))))

(defcustom org-support-shift-select nil
  "Non-nil means make shift-cursor commands select text when possible.
\\<org-mode-map>
In Emacs 23, when `shift-select-mode' is on, shifted cursor keys
start selecting a region, or enlarge regions started in this way.
In Org mode, in special contexts, these same keys are used for
other purposes, important enough to compete with shift selection.
Org tries to balance these needs by supporting `shift-select-mode'
outside these special contexts, under control of this variable.

The default of this variable is nil, to avoid confusing behavior.  Shifted
cursor keys will then execute Org commands in the following contexts:
- on a headline, changing TODO state (left/right) and priority (up/down)
- on a time stamp, changing the time
- in a plain list item, changing the bullet type
- in a property definition line, switching between allowed values
- in the BEGIN line of a clock table (changing the time block).
- in a table, moving the cell in the specified direction.
Outside these contexts, the commands will throw an error.

When this variable is t and the cursor is not in a special
context, Org mode will support shift-selection for making and
enlarging regions.  To make this more effective, the bullet
cycling will no longer happen anywhere in an item line, but only
if the cursor is exactly on the bullet.

If you set this variable to the symbol `always', then the keys
will not be special in headlines, property lines, item lines, and
table cells, to make shift selection work there as well.  If this is
what you want, you can use the following alternative commands:
`\\[org-todo]' and `\\[org-priority]' \
to change TODO state and priority,
`\\[universal-argument] \\[universal-argument] \\[org-todo]' \
can be used to switch TODO sets,
`\\[org-ctrl-c-minus]' to cycle item bullet types,
and properties can be edited by hand or in column view.

However, when the cursor is on a timestamp, shift-cursor commands
will still edit the time stamp - this is just too good to give up."
  :group 'org
  :type '(choice
	  (const :tag "Never" nil)
	  (const :tag "When outside special context" t)
	  (const :tag "Everywhere except timestamps" always)))

(defcustom org-loop-over-headlines-in-active-region t
  "Shall some commands act upon headlines in the active region?

When set to t, some commands will be performed in all headlines
within the active region.

When set to `start-level', some commands will be performed in all
headlines within the active region, provided that these headlines
are of the same level than the first one.

When set to a string, those commands will be performed on the
matching headlines within the active region.  Such string must be
a tags/property/todo match as it is used in the agenda tags view.

The list of commands is: `org-schedule', `org-deadline',
`org-todo', `org-set-tags-command', `org-archive-subtree',
`org-archive-set-tag', `org-toggle-archive-tag' and
`org-archive-to-archive-sibling'.  The archiving commands skip
already archived entries.

See `org-agenda-loop-over-headlines-in-active-region' for the
equivalent option for agenda views."
  :type '(choice (const :tag "Don't loop" nil)
		 (const :tag "All headlines in active region" t)
		 (const :tag "In active region, headlines at the same level than the first one" start-level)
		 (string :tag "Tags/Property/Todo matcher"))
  :package-version '(Org . "9.4")
  :group 'org-todo
  :group 'org-archive)

(defgroup org-startup nil
  "Startup options Org uses when first visiting a file."
  :tag "Org Startup"
  :group 'org)

(defcustom org-startup-folded 'showeverything
  "Initial folding state of headings when entering Org mode.

Allowed values are:

symbol `nofold'
  Do not fold headings.

symbol `fold'
  Fold everything, leaving only top-level headings visible.

symbol `content'
  Leave all the headings and sub-headings visible, but hide their
  text.  This is an equivalent of table of contents.

symbol `show2levels', `show3levels', `show4levels', `show5levels'
  Show headings up to Nth level.

symbol `showeverything' (default)
  Start Org mode in fully unfolded state.  Unlike all other allowed
  values, this value prevents drawers, blocks, and archived subtrees
  from being folded even when `org-cycle-hide-block-startup',
  `org-cycle-open-archived-trees', or `org-cycle-hide-drawer-startup'
  are non-nil.  Per-subtree visibility settings (see manual node
  `(org)Initial visibility)') are also ignored.

This can also be configured on a per-file basis by adding one of
the following lines anywhere in the buffer:

   #+STARTUP: fold              (or `overview', this is equivalent)
   #+STARTUP: nofold            (or `showall', this is equivalent)
   #+STARTUP: content
   #+STARTUP: show<n>levels (<n> = 2..5)
   #+STARTUP: showeverything

Set `org-agenda-inhibit-startup' to a non-nil value if you want
to ignore this option when Org opens agenda files for the first
time."
  :group 'org-startup
  :package-version '(Org . "9.4")
  :type '(choice
	  (const :tag "nofold: show all" nofold)
	  (const :tag "fold: overview" fold)
	  (const :tag "fold: show two levels" show2levels)
	  (const :tag "fold: show three levels" show3levels)
	  (const :tag "fold: show four levels" show4evels)
	  (const :tag "fold: show five levels" show5levels)
	  (const :tag "content: all headlines" content)
	  (const :tag "show everything, even drawers" showeverything)))

(defcustom org-startup-truncated t
  "Non-nil means entering Org mode will set `truncate-lines'.
This is useful since some lines containing links can be very long and
uninteresting.  Also tables look terrible when wrapped.

The variable `org-startup-truncated' allows to configure
truncation for Org mode different to the other modes that use the
variable `truncate-lines' and as a shortcut instead of putting
the variable `truncate-lines' into the `org-mode-hook'.  If one
wants to configure truncation for Org mode not statically but
dynamically e.g. in a hook like `ediff-prepare-buffer-hook' then
the variable `truncate-lines' has to be used because in such a
case it is too late to set the variable `org-startup-truncated'."
  :group 'org-startup
  :type 'boolean)

(defcustom org-startup-indented nil
  "Non-nil means turn on `org-indent-mode' on startup.
This can also be configured on a per-file basis by adding one of
the following lines anywhere in the buffer:

   #+STARTUP: indent
   #+STARTUP: noindent"
  :group 'org-structure
  :type '(choice
	  (const :tag "Not" nil)
	  (const :tag "Globally (slow on startup in large files)" t)))

(defcustom org-startup-numerated nil
  "Non-nil means turn on `org-num-mode' on startup.
This can also be configured on a per-file basis by adding one of
the following lines anywhere in the buffer:

   #+STARTUP: num
   #+STARTUP: nonum"
  :group 'org-structure
  :package-version '(Org . "9.4")
  :type '(choice
	  (const :tag "Not" nil)
	  (const :tag "Globally" t)))

(defcustom org-use-sub-superscripts t
  "Non-nil means interpret \"_\" and \"^\" for display.

If you want to control how Org exports those characters, see
`org-export-with-sub-superscripts'.

When this option is turned on, you can use TeX-like syntax for
sub- and superscripts within the buffer.  Several characters after
\"_\" or \"^\" will be considered as a single item - so grouping
with {} is normally not needed.  For example, the following things
will be parsed as single sub- or superscripts:

 10^24   or   10^tau     several digits will be considered 1 item.
 10^-12  or   10^-tau    a leading sign with digits or a word
 x^2-y^3                 will be read as x^2 - y^3, because items are
			 terminated by almost any nonword/nondigit char.
 x_{i^2} or   x^(2-i)    braces or parenthesis do grouping.

Still, ambiguity is possible.  So when in doubt, use {} to enclose
the sub/superscript.  If you set this variable to the symbol `{}',
the braces are *required* in order to trigger interpretations as
sub/superscript.  This can be helpful in documents that need \"_\"
frequently in plain text."
  :group 'org-startup
  :version "24.4"
  :package-version '(Org . "8.0")
  :type '(choice
	  (const :tag "Always interpret" t)
	  (const :tag "Only with braces" {})
	  (const :tag "Never interpret" nil)))

(defcustom org-startup-with-beamer-mode nil
  "Non-nil means turn on `org-beamer-mode' on startup.
This can also be configured on a per-file basis by adding one of
the following lines anywhere in the buffer:

   #+STARTUP: beamer"
  :group 'org-startup
  :version "24.1"
  :type 'boolean)

(defcustom org-startup-align-all-tables nil
  "Non-nil means align all tables when visiting a file.
This can also be configured on a per-file basis by adding one of
the following lines anywhere in the buffer:
   #+STARTUP: align
   #+STARTUP: noalign"
  :group 'org-startup
  :type 'boolean)

(defcustom org-startup-shrink-all-tables nil
  "Non-nil means shrink all table columns with a width cookie.
This can also be configured on a per-file basis by adding one of
the following lines anywhere in the buffer:
   #+STARTUP: shrink"
  :group 'org-startup
  :type 'boolean
  :version "27.1"
  :package-version '(Org . "9.2")
  :safe #'booleanp)

(defcustom org-startup-with-inline-images nil
  "Non-nil means show inline images when loading a new Org file.
This can also be configured on a per-file basis by adding one of
the following lines anywhere in the buffer:
   #+STARTUP: inlineimages
   #+STARTUP: noinlineimages"
  :group 'org-startup
  :version "24.1"
  :type 'boolean)

(defcustom org-startup-with-latex-preview nil
  "Non-nil means preview LaTeX fragments when loading a new Org file.

This can also be configured on a per-file basis by adding one of
the following lines anywhere in the buffer:
   #+STARTUP: latexpreview
   #+STARTUP: nolatexpreview"
  :group 'org-startup
  :version "24.4"
  :package-version '(Org . "8.0")
  :type 'boolean)

(defcustom org-insert-mode-line-in-empty-file nil
  "Non-nil means insert the first line setting Org mode in empty files.
When the function `org-mode' is called interactively in an empty file, this
normally means that the file name does not automatically trigger Org mode.
To ensure that the file will always be in Org mode in the future, a
line enforcing Org mode will be inserted into the buffer, if this option
has been set."
  :group 'org-startup
  :type 'boolean)

(defcustom org-ellipsis nil
  "The ellipsis to use in the Org mode outline.

When nil, just use the standard three dots.  When a non-empty string,
use that string instead.

The change affects only Org mode (which will then use its own display table).
Changing this requires executing `\\[org-mode]' in a buffer to become
effective.  It cannot be set as a local variable."
  :group 'org-startup
  :type '(choice (const :tag "Default" nil)
		 (string :tag "String" :value "...#")))

(defvar org-display-table nil
  "The display table for Org mode, in case `org-ellipsis' is non-nil.")

(defcustom org-directory "~/org"
  "Directory with Org files.
This is just a default location to look for Org files.  There is no need
at all to put your files into this directory.  It is used in the
following situations:

1. When a capture template specifies a target file that is not an
   absolute path.  The path will then be interpreted relative to
   `org-directory'
2. When the value of variable `org-agenda-files' is a single file, any
   relative paths in this file will be taken as relative to
   `org-directory'."
  :group 'org-refile
  :group 'org-capture
  :type 'directory)

(defcustom org-default-notes-file (convert-standard-filename "~/.notes")
  "Default target for storing notes.
Used as a fall back file for org-capture.el, for templates that
do not specify a target file."
  :group 'org-refile
  :group 'org-capture
  :type 'file)

(defcustom org-reverse-note-order nil
  "Non-nil means store new notes at the beginning of a file or entry.
When nil, new notes will be filed to the end of a file or entry.
This can also be a list with cons cells of regular expressions that
are matched against file names, and values."
  :group 'org-capture
  :group 'org-refile
  :type '(choice
	  (const :tag "Reverse always" t)
	  (const :tag "Reverse never" nil)
	  (repeat :tag "By file name regexp"
		  (cons regexp boolean))))

(defgroup org-keywords nil
  "Keywords in Org mode."
  :tag "Org Keywords"
  :group 'org)

(defcustom org-closed-keep-when-no-todo nil
  "Remove CLOSED: timestamp when switching back to a non-todo state?"
  :group 'org-todo
  :group 'org-keywords
  :version "24.4"
  :package-version '(Org . "8.0")
  :type 'boolean)

(defgroup org-structure nil
  "Options concerning the general structure of Org files."
  :tag "Org Structure"
  :group 'org)

(defcustom org-indirect-buffer-display 'other-window
  "How should indirect tree buffers be displayed?

This applies to indirect buffers created with the commands
`org-tree-to-indirect-buffer' and `org-agenda-tree-to-indirect-buffer'.

Valid values are:
current-window   Display in the current window
other-window     Just display in another window.
dedicated-frame  Create one new frame, and reuse it each time.
new-frame        Make a new frame each time.  Note that in this case
                 previously-made indirect buffers are kept, and you need to
                 kill these buffers yourself."
  :group 'org-structure
  :group 'org-agenda-windows
  :type '(choice
	  (const :tag "In current window" current-window)
	  (const :tag "In current frame, other window" other-window)
	  (const :tag "Each time a new frame" new-frame)
	  (const :tag "One dedicated frame" dedicated-frame)))

(defconst org-file-apps-gnu
  '((remote . emacs)
    (system . mailcap)
    (t . mailcap))
  "Default file applications on a UNIX or GNU/Linux system.
See `org-file-apps'.")

(defconst org-file-apps-macos
  '((remote . emacs)
    (system . "open %s")
    ("ps.gz"  . "gv %s")
    ("eps.gz" . "gv %s")
    ("dvi"    . "xdvi %s")
    ("fig"    . "xfig %s")
    (t . "open %s"))
  "Default file applications on a macOS system.
The system \"open\" is known as a default, but we use X11 applications
for some files for which the OS does not have a good default.
See `org-file-apps'.")

(defconst org-file-apps-windowsnt
  (list '(remote . emacs)
	(cons 'system (lambda (file _path)
			(with-no-warnings (w32-shell-execute "open" file))))
	(cons t (lambda (file _path)
		  (with-no-warnings (w32-shell-execute "open" file)))))
  "Default file applications on a Windows NT system.
The system \"open\" is used for most files.
See `org-file-apps'.")

(defcustom org-file-apps
  '((auto-mode . emacs)
    (directory . emacs)
    ("\\.mm\\'" . default)
    ("\\.x?html?\\'" . default)
    ("\\.pdf\\'" . default))
  "Applications for opening `file:path' items in a document.

\\<org-mode-map>
Org mode uses system defaults for different file types, but you
can use this variable to set the application for a given file
extension.  The entries in this list are cons cells where the car
identifies files and the cdr the corresponding command.

Possible values for the file identifier are:

 \"string\"    A string as a file identifier can be interpreted in different
               ways, depending on its contents:

               - Alphanumeric characters only:
                 Match links with this file extension.
                 Example: (\"pdf\" . \"evince %s\")
                          to open PDFs with evince.

               - Regular expression: Match links where the
                 filename matches the regexp.  If you want to
                 use groups here, use shy groups.

                 Example: (\"\\\\.x?html\\\\\\='\" . \"firefox %s\")
                          (\"\\\\(?:xhtml\\\\|html\\\\)\\\\\\='\" . \"firefox %s\")
                          to open *.html and *.xhtml with firefox.

               - Regular expression which contains (non-shy) groups:
                 Match links where the whole link, including \"::\", and
                 anything after that, matches the regexp.
                 In a custom command string, %1, %2, etc. are replaced with
                 the parts of the link that were matched by the groups.
                 For backwards compatibility, if a command string is given
                 that does not use any of the group matches, this case is
                 handled identically to the second one (i.e. match against
                 file name only).
                 In a custom function, you can access the group matches with
                 (match-string n link).

                 Example: (\"\\\\.pdf::\\\\([0-9]+\\\\)\\\\\\='\" . \
\"evince -p %1 %s\")
                     to open [[file:document.pdf::5]] with evince at page 5.

                 Likely, you will need more entries: without page
                 number; with search pattern; with cross-reference
                 anchor; some combination of options.  Consider simple
                 pattern here and a Lisp function to determine command
                 line arguments instead.  Passing argument list to
                 `call-process' or `make-process' directly allows to
                 avoid treating some character in peculiar file names
                 as shell specialls causing executing part of file
                 name as a subcommand.

 `directory'   Matches a directory
 `remote'      Matches a remote file, accessible through tramp.
               Remote files most likely should be visited through Emacs
               because external applications cannot handle such paths.
`auto-mode'    Matches files that are matched by any entry in `auto-mode-alist',
               so all files Emacs knows how to handle.  Using this with
               command `emacs' will open most files in Emacs.  Beware that this
               will also open html files inside Emacs, unless you add
               (\"html\" . default) to the list as well.
 `system'      The system command to open files, like `open' on Windows
               and macOS, and mailcap under GNU/Linux.  This is the command
               that will be selected if you call `org-open-at-point' with a
               double prefix argument (`\\[universal-argument] \
\\[universal-argument] \\[org-open-at-point]').
 t             Default for files not matched by any of the other options.

Possible values for the command are:

 `emacs'       The file will be visited by the current Emacs process.
 `default'     Use the default application for this file type, which is the
               association for t in the list, most likely in the system-specific
               part.  This can be used to overrule an unwanted setting in the
               system-specific variable.
 `system'      Use the system command for opening files, like \"open\".
               This command is specified by the entry whose car is `system'.
               Most likely, the system-specific version of this variable
               does define this command, but you can overrule/replace it
               here.
`mailcap'      Use command specified in the mailcaps.
 string        A command to be executed by a shell; %s will be replaced
               by the path to the file.
 function      A Lisp function, which will be called with two arguments:
               the file path and the original link string, without the
               \"file:\" prefix.

For more examples, see the system specific constants
`org-file-apps-macos'
`org-file-apps-windowsnt'
`org-file-apps-gnu'."
  :group 'org
  :package-version '(Org . "9.4")
  :type '(repeat
	  (cons (choice :value ""
			(string :tag "Extension")
			(const :tag "System command to open files" system)
			(const :tag "Default for unrecognized files" t)
			(const :tag "Remote file" remote)
			(const :tag "Links to a directory" directory)
			(const :tag "Any files that have Emacs modes"
			       auto-mode))
		(choice :value ""
			(const :tag "Visit with Emacs" emacs)
			(const :tag "Use default" default)
			(const :tag "Use the system command" system)
			(string :tag "Command")
			(function :tag "Function")))))

(defcustom org-resource-download-policy 'prompt
  "The policy applied to requests to obtain remote resources.

This affects keywords like #+setupfile and #+include on export,
`org-persist-write:url',and `org-attach-url' in non-interactive
Emacs sessions.

This recognizes four possible values:
- t, remote resources should always be downloaded.
- prompt, you will be prompted to download resources not considered safe.
- safe, only resources considered safe will be downloaded.
- nil, never download remote resources.

A resource is considered safe if it matches one of the patterns
in `org-safe-remote-resources'."
  :group 'org
  :package-version '(Org . "9.6")
  :type '(choice (const :tag "Always download remote resources" t)
                 (const :tag "Prompt before downloading an unsafe resource" prompt)
                 (const :tag "Only download resources considered safe" safe)
                 (const :tag "Never download any resources" nil)))

(defcustom org-safe-remote-resources nil
  "A list of regexp patterns matching safe URIs.
URI regexps are applied to both URLs and Org files requesting
remote resources."
  :group 'org
  :package-version '(Org . "9.6")
  :type '(repeat regexp))

(defcustom org-open-non-existing-files nil
  "Non-nil means `org-open-file' opens non-existing files.

When nil, an error is thrown.

This variable applies only to external applications because they
might choke on non-existing files.  If the link is to a file that
will be opened in Emacs, the variable is ignored."
  :group 'org
  :type 'boolean
  :safe #'booleanp)

(defcustom org-open-directory-means-index-dot-org nil
  "When non-nil a link to a directory really means to \"index.org\".
When nil, following a directory link runs Dired or opens
a finder/explorer window on that directory."
  :group 'org
  :type 'boolean
  :safe #'booleanp)

(defcustom org-bookmark-names-plist
  '(:last-capture "org-capture-last-stored"
		  :last-refile "org-refile-last-stored"
		  :last-capture-marker "org-capture-last-stored-marker")
  "Names for bookmarks automatically set by some Org commands.
This can provide strings as names for a number of bookmarks Org sets
automatically.  The following keys are currently implemented:
  :last-capture
  :last-capture-marker
  :last-refile
When a key does not show up in the property list, the corresponding bookmark
is not set."
  :group 'org-structure
  :type 'plist)

(defgroup org-edit-structure nil
  "Options concerning structure editing in Org mode."
  :tag "Org Edit Structure"
  :group 'org-structure)

(defcustom org-odd-levels-only nil
  "Non-nil means skip even levels and only use odd levels for the outline.
This has the effect that two stars are being added/taken away in
promotion/demotion commands.  It also influences how levels are
handled by the exporters.
Changing it requires restart of `font-lock-mode' to become effective
for fontification also in regions already fontified.
You may also set this on a per-file basis by adding one of the following
lines to the buffer:

   #+STARTUP: odd
   #+STARTUP: oddeven"
  :group 'org-edit-structure
  :group 'org-appearance
  :type 'boolean)

(defcustom org-adapt-indentation nil
  "Non-nil means adapt indentation to outline node level.

When set to t, Org assumes that you write outlines by indenting
text in each node to align with the headline, after the stars.

When this variable is set to `headline-data', Org only adapts the
indentation of the data lines right below the headline, such as
planning/clock lines and property/logbook drawers.

The following issues are influenced by this variable:

- The indentation is increased by one space in a demotion
  command, and decreased by one in a promotion command.  However,
  in the latter case, if shifting some line in the entry body
  would alter document structure (e.g., insert a new headline),
  indentation is not changed at all.

- Property drawers and planning information is inserted indented
  when this variable is set.  When nil, they will not be indented.

- TAB indents a line relative to current level.  The lines below
  a headline will be indented when this variable is set to t.

Note that this is all about true indentation, by adding and
removing space characters.  See also \"org-indent.el\" which does
level-dependent indentation in a virtual way, i.e. at display
time in Emacs."
  :group 'org-edit-structure
  :type '(choice
	  (const :tag "Adapt indentation for all lines" t)
	  (const :tag "Adapt indentation for headline data lines"
		 headline-data)
	  (const :tag "Do not adapt indentation at all" nil))
  :safe (lambda (x) (memq x '(t nil headline-data))))

(defvaralias 'org-special-ctrl-a 'org-special-ctrl-a/e)

(defcustom org-special-ctrl-a/e nil
  "Non-nil means `C-a' and `C-e' behave specially in headlines and items.

When t, `C-a' will bring back the cursor to the beginning of the
headline text, i.e. after the stars and after a possible TODO
keyword.  In an item, this will be the position after bullet and
check-box, if any.  When the cursor is already at that position,
another `C-a' will bring it to the beginning of the line.

`C-e' will jump to the end of the headline, ignoring the presence
of tags in the headline.  A second `C-e' will then jump to the
true end of the line, after any tags.  This also means that, when
this variable is non-nil, `C-e' also will never jump beyond the
end of the heading of a folded section, i.e. not after the
ellipses.

When set to the symbol `reversed', the first `C-a' or `C-e' works
normally, going to the true line boundary first.  Only a directly
following, identical keypress will bring the cursor to the
special positions.

This may also be a cons cell where the behavior for `C-a' and
`C-e' is set separately."
  :group 'org-edit-structure
  :type '(choice
	  (const :tag "off" nil)
	  (const :tag "on: after stars/bullet and before tags first" t)
	  (const :tag "reversed: true line boundary first" reversed)
	  (cons :tag "Set C-a and C-e separately"
		(choice :tag "Special C-a"
			(const :tag "off" nil)
			(const :tag "on: after  stars/bullet first" t)
			(const :tag "reversed: before stars/bullet first" reversed))
		(choice :tag "Special C-e"
			(const :tag "off" nil)
			(const :tag "on: before tags first" t)
			(const :tag "reversed: after tags first" reversed)))))

(defcustom org-special-ctrl-k nil
  "Non-nil means that \\<org-mode-map>\\[org-kill-line] \
will behave specially in headlines.

When nil, \\[org-kill-line] will call the default `kill-line' command.
Otherwise, the following will happen when point is in a headline:

- At the beginning of a headline, kill the entire line.
- In the middle of the headline text, kill the text up to the tags.
- After the headline text and before the tags, kill all the tags."
  :group 'org-edit-structure
  :type 'boolean)

(defcustom org-ctrl-k-protect-subtree nil
  "Non-nil means, do not delete a hidden subtree with `C-k'.
When set to the symbol `error', simply throw an error when `C-k' is
used to kill (part-of) a headline that has hidden text behind it.
Any other non-nil value will result in a query to the user, if it is
OK to kill that hidden subtree.  When nil, kill without remorse."
  :group 'org-edit-structure
  :version "24.1"
  :type '(choice
	  (const :tag "Do not protect hidden subtrees" nil)
	  (const :tag "Protect hidden subtrees with a security query" t)
	  (const :tag "Never kill a hidden subtree with C-k" error)))

(defcustom org-special-ctrl-o t
  "Non-nil means, make `open-line' (\\[open-line]) insert a row in tables."
  :group 'org-edit-structure
  :type 'boolean)

(defcustom org-yank-folded-subtrees t
  "Non-nil means when yanking subtrees, fold them.
If the kill is a single subtree, or a sequence of subtrees, i.e. if
it starts with a heading and all other headings in it are either children
or siblings, then fold all the subtrees.  However, do this only if no
text after the yank would be swallowed into a folded tree by this action."
  :group 'org-edit-structure
  :type 'boolean)

(defcustom org-yank-adjusted-subtrees nil
  "Non-nil means when yanking subtrees, adjust the level.
With this setting, `org-paste-subtree' is used to insert the subtree, see
this function for details."
  :group 'org-edit-structure
  :type 'boolean)

(defcustom org-M-RET-may-split-line '((default . t))
  "Non-nil means M-RET will split the line at the cursor position.
When nil, it will go to the end of the line before making a
new line.
You may also set this option in a different way for different
contexts.  Valid contexts are:

headline  when creating a new headline
item      when creating a new item
table     in a table field
default   the value to be used for all contexts not explicitly
          customized"
  :group 'org-structure
  :group 'org-table
  :type '(choice
	  (const :tag "Always" t)
	  (const :tag "Never" nil)
	  (repeat :greedy t :tag "Individual contexts"
		  (cons
		   (choice :tag "Context"
			   (const headline)
			   (const item)
			   (const table)
			   (const default))
		   (boolean)))))

(defcustom org-insert-heading-respect-content nil
  "Non-nil means insert new headings after the current subtree.
\\<org-mode-map>
When nil, the new heading is created directly after the current line.
The commands `\\[org-insert-heading-respect-content]' and \
`\\[org-insert-todo-heading-respect-content]' turn this variable on
for the duration of the command."
  :group 'org-structure
  :type 'boolean)

(defcustom org-blank-before-new-entry '((heading . auto)
					(plain-list-item . auto))
  "Should `org-insert-heading' leave a blank line before new heading/item?
The value is an alist, with `heading' and `plain-list-item' as CAR,
and a boolean flag as CDR.  The cdr may also be the symbol `auto', in
which case Org will look at the surrounding headings/items and try to
make an intelligent decision whether to insert a blank line or not."
  :group 'org-edit-structure
  :type '(list
	  (cons (const heading)
		(choice (const :tag "Never" nil)
			(const :tag "Always" t)
			(const :tag "Auto" auto)))
	  (cons (const plain-list-item)
		(choice (const :tag "Never" nil)
			(const :tag "Always" t)
			(const :tag "Auto" auto)))))

(defcustom org-insert-heading-hook nil
  "Hook being run after inserting a new heading."
  :group 'org-edit-structure
  :type 'hook)

(defgroup org-sparse-trees nil
  "Options concerning sparse trees in Org mode."
  :tag "Org Sparse Trees"
  :group 'org-structure)

(defcustom org-highlight-sparse-tree-matches t
  "Non-nil means highlight all matches that define a sparse tree.
The highlights will automatically disappear the next time the buffer is
changed by an edit command."
  :group 'org-sparse-trees
  :type 'boolean)

(defcustom org-remove-highlights-with-change t
  "Non-nil means any change to the buffer will remove temporary highlights.
\\<org-mode-map>\
Such highlights are created by `org-occur' and `org-clock-display'.
When nil, `\\[org-ctrl-c-ctrl-c]' needs to be used \
to get rid of the highlights.
The highlights created by `org-latex-preview' always need
`\\[org-latex-preview]' to be removed."
  :group 'org-sparse-trees
  :group 'org-time
  :type 'boolean)

(defcustom org-occur-case-fold-search t
  "Non-nil means `org-occur' should be case-insensitive.
If set to `smart' the search will be case-insensitive only if it
doesn't specify any upper case character."
  :group 'org-sparse-trees
  :version "26.1"
  :type '(choice
	  (const :tag "Case-sensitive" nil)
	  (const :tag "Case-insensitive" t)
	  (const :tag "Case-insensitive for lower case searches only" smart)))

(defcustom org-occur-hook '(org-first-headline-recenter)
  "Hook that is run after `org-occur' has constructed a sparse tree.
This can be used to recenter the window to show as much of the structure
as possible."
  :group 'org-sparse-trees
  :type 'hook)

(defcustom org-self-insert-cluster-for-undo nil
  "Non-nil means cluster self-insert commands for undo when possible.
If this is set, then, like in the Emacs command loop, 20 consecutive
characters will be undone together.
This is configurable, because there is some impact on typing performance."
  :group 'org-table
  :type 'boolean)

(defvaralias 'org-activate-links 'org-highlight-links)
(defcustom org-highlight-links '(bracket angle plain radio tag date footnote)
  "Types of links that should be highlighted in Org files.

This is a list of symbols, each one of them leading to the
highlighting of a certain link type.

You can still open links that are not highlighted.

In principle, it does not hurt to turn on highlighting for all
link types.  There may be a small gain when turning off unused
link types.  The types are:

bracket   The recommended [[link][description]] or [[link]] links with hiding.
angle     Links in angular brackets that may contain whitespace like
          <bbdb:Carsten Dominik>.
plain     Plain links in normal text, no whitespace, like https://gnu.org.
radio     Text that is matched by a radio target, see manual for details.
tag       Tag settings in a headline (link to tag search).
date      Time stamps (link to calendar).
footnote  Footnote labels.

If you set this variable during an Emacs session, use `org-mode-restart'
in the Org buffer so that the change takes effect."
  :group 'org-appearance
  :type '(set :greedy t
	      (const :tag "Double bracket links" bracket)
	      (const :tag "Angular bracket links" angle)
	      (const :tag "Plain text links" plain)
	      (const :tag "Radio target matches" radio)
	      (const :tag "Tags" tag)
	      (const :tag "Timestamps" date)
	      (const :tag "Footnotes" footnote)))

(defcustom org-mark-ring-length 4
  "Number of different positions to be recorded in the ring.
Changing this requires a restart of Emacs to work correctly."
  :group 'org-link-follow
  :type 'integer)

(defgroup org-todo nil
  "Options concerning TODO items in Org mode."
  :tag "Org TODO"
  :group 'org)

(defgroup org-progress nil
  "Options concerning Progress logging in Org mode."
  :tag "Org Progress"
  :group 'org-time)

(defvar org-todo-interpretation-widgets
  '((:tag "Sequence (cycling hits every state)" sequence)
    (:tag "Type     (cycling directly to DONE)" type))
  "The available interpretation symbols for customizing `org-todo-keywords'.
Interested libraries should add to this list.")

(defcustom org-todo-keywords '((sequence "TODO" "DONE"))
  "List of TODO entry keyword sequences and their interpretation.
\\<org-mode-map>This is a list of sequences.

Each sequence starts with a symbol, either `sequence' or `type',
indicating if the keywords should be interpreted as a sequence of
action steps, or as different types of TODO items.  The first
keywords are states requiring action - these states will select a headline
for inclusion into the global TODO list Org produces.  If one of the
\"keywords\" is the vertical bar, \"|\", the remaining keywords
signify that no further action is necessary.  If \"|\" is not found,
the last keyword is treated as the only DONE state of the sequence.

The command `\\[org-todo]' cycles an entry through these states, and one
additional state where no keyword is present.  For details about this
cycling, see the manual.

TODO keywords and interpretation can also be set on a per-file basis with
the special #+SEQ_TODO and #+TYP_TODO lines.

Each keyword can optionally specify a character for fast state selection
\(in combination with the variable `org-use-fast-todo-selection')
and specifiers for state change logging, using the same syntax that
is used in the \"#+TODO:\" lines.  For example, \"WAIT(w)\" says that
the WAIT state can be selected with the \"w\" key.  \"WAIT(w!)\"
indicates to record a time stamp each time this state is selected.

Each keyword may also specify if a timestamp or a note should be
recorded when entering or leaving the state, by adding additional
characters in the parenthesis after the keyword.  This looks like this:
\"WAIT(w@/!)\".  \"@\" means to add a note (with time), \"!\" means to
record only the time of the state change.  With X and Y being either
\"@\" or \"!\", \"X/Y\" means use X when entering the state, and use
Y when leaving the state if and only if the *target* state does not
define X.  You may omit any of the fast-selection key or X or /Y,
so WAIT(w@), WAIT(w/@) and WAIT(@/@) are all valid.

For backward compatibility, this variable may also be just a list
of keywords.  In this case the interpretation (sequence or type) will be
taken from the (otherwise obsolete) variable `org-todo-interpretation'."
  :group 'org-todo
  :group 'org-keywords
  :type '(choice
	  (repeat :tag "Old syntax, just keywords"
		  (string :tag "Keyword"))
	  (repeat :tag "New syntax"
		  (cons
		   (choice
		    :tag "Interpretation"
		    ;;Quick and dirty way to see
                    ;;`org-todo-interpretation'.  This takes the
		    ;;place of item arguments
		    :convert-widget
		    (lambda (widget)
		      (widget-put widget
				  :args (mapcar
					 (lambda (x)
					   (widget-convert
					    (cons 'const x)))
					 org-todo-interpretation-widgets))
		      widget))
		   (repeat
		    (string :tag "Keyword"))))))

(defvar-local org-todo-keywords-1 nil
  "All TODO and DONE keywords active in a buffer.")
(defvar org-todo-keywords-for-agenda nil)
(defvar org-done-keywords-for-agenda nil)
(defvar org-todo-keyword-alist-for-agenda nil)
(defvar org-tag-alist-for-agenda nil
  "Alist of all tags from all agenda files.")
(defvar org-tag-groups-alist-for-agenda nil
  "Alist of all groups tags from all current agenda files.")
(defvar-local org-tag-groups-alist nil)
(defvar org-agenda-contributing-files nil)
(defvar-local org-current-tag-alist nil
  "Alist of all tag groups in current buffer.
This variable takes into consideration `org-tag-alist',
`org-tag-persistent-alist' and TAGS keywords in the buffer.")
(defvar-local org-not-done-keywords nil)
(defvar-local org-done-keywords nil)
(defvar-local org-todo-heads nil)
(defvar-local org-todo-sets nil)
(defvar-local org-todo-log-states nil)
(defvar-local org-todo-kwd-alist nil)
(defvar-local org-todo-key-alist nil)
(defvar-local org-todo-key-trigger nil)

(defcustom org-todo-interpretation 'sequence
  "Controls how TODO keywords are interpreted.
This variable is in principle obsolete and is only used for
backward compatibility, if the interpretation of todo keywords is
not given already in `org-todo-keywords'.  See that variable for
more information."
  :group 'org-todo
  :group 'org-keywords
  :type '(choice (const sequence)
		 (const type)))

(defcustom org-use-fast-todo-selection 'auto
  "\\<org-mode-map>\
Non-nil means use the fast todo selection scheme with `\\[org-todo]'.
This variable describes if and under what circumstances the cycling
mechanism for TODO keywords will be replaced by a single-key, direct
selection scheme, where the choices are displayed in a little window.

When nil, fast selection is never used.  This means that the command
will always switch to the next state.

When it is the symbol `auto', fast selection is whenever selection
keys have been defined.

`expert' is like `auto', but no special window with the keyword
will be shown, choices will only be listed in the prompt.

In all cases, the special interface is only used if access keys have
actually been assigned by the user, i.e. if keywords in the configuration
are followed by a letter in parenthesis, like TODO(t)."
  :group 'org-todo
  :set (lambda (var val)
	 (cond
	  ((eq var t) (set-default-toplevel-value var 'auto))
	  ((eq var 'prefix) (set-default-toplevel-value var nil))
	  (t (set-default-toplevel-value var val))))
  :type '(choice
	  (const :tag "Never" nil)
	  (const :tag "Automatically, when key letter have been defined" auto)
	  (const :tag "Automatically, but don't show the selection window" expert)))

(defcustom org-provide-todo-statistics t
  "Non-nil means update todo statistics after insert and toggle.
ALL-HEADLINES means update todo statistics by including headlines
with no TODO keyword as well, counting them as not done.
A list of TODO keywords means the same, but skip keywords that are
not in this list.
When set to a list of two lists, the first list contains keywords
to consider as TODO keywords, the second list contains keywords
to consider as DONE keywords.

When this is set, todo statistics is updated in the parent of the
current entry each time a todo state is changed."
  :group 'org-todo
  :type '(choice
	  (const :tag "Yes, only for TODO entries" t)
	  (const :tag "Yes, including all entries" all-headlines)
	  (repeat :tag "Yes, for TODOs in this list"
		  (string :tag "TODO keyword"))
	  (list :tag "Yes, for TODOs and DONEs in these lists"
		(repeat (string :tag "TODO keyword"))
		(repeat (string :tag "DONE keyword")))
	  (other :tag "No TODO statistics" nil)))

(defcustom org-hierarchical-todo-statistics t
  "Non-nil means TODO statistics covers just direct children.
When nil, all entries in the subtree are considered.
This has only an effect if `org-provide-todo-statistics' is set.
To set this to nil for only a single subtree, use a COOKIE_DATA
property and include the word \"recursive\" into the value."
  :group 'org-todo
  :type 'boolean)

(defcustom org-after-todo-state-change-hook nil
  "Hook which is run after the state of a TODO item was changed.
The new state (a string with a TODO keyword, or nil) is available in the
Lisp variable `org-state'."
  :group 'org-todo
  :type 'hook)

(defvar org-blocker-hook nil
  "Hook for functions that are allowed to block a state change.

Functions in this hook should not modify the buffer.
Each function gets as its single argument a property list,
see `org-trigger-hook' for more information about this list.

If any of the functions in this hook returns nil, the state change
is blocked.")

(defvar org-trigger-hook nil
  "Hook for functions that are triggered by a state change.

Each function gets as its single argument a property list with at
least the following elements:

 (:type type-of-change :position pos-at-entry-start
  :from old-state :to new-state)

Depending on the type, more properties may be present.

This mechanism is currently implemented for:

TODO state changes
------------------
:type  todo-state-change
:from  previous state (keyword as a string), or nil, or a symbol
       `todo' or `done', to indicate the general type of state.
:to    new state, like in :from")

(defcustom org-enforce-todo-dependencies nil
  "Non-nil means undone TODO entries will block switching the parent to DONE.
Also, if a parent has an :ORDERED: property, switching an entry to DONE will
be blocked if any prior sibling is not yet done.
Finally, if the parent is blocked because of ordered siblings of its own,
the child will also be blocked."
  :set (lambda (var val)
	 (set-default-toplevel-value var val)
	 (if val
	     (add-hook 'org-blocker-hook
		       'org-block-todo-from-children-or-siblings-or-parent)
	   (remove-hook 'org-blocker-hook
			'org-block-todo-from-children-or-siblings-or-parent)))
  :group 'org-todo
  :type 'boolean)

(defcustom org-enforce-todo-checkbox-dependencies nil
  "Non-nil means unchecked boxes will block switching the parent to DONE.
When this is nil, checkboxes have no influence on switching TODO states.
When non-nil, you first need to check off all check boxes before the TODO
entry can be switched to DONE.
This variable needs to be set before org.el is loaded, and you need to
restart Emacs after a change to make the change effective.  The only way
to change it while Emacs is running is through the customize interface."
  :set (lambda (var val)
	 (set-default-toplevel-value var val)
	 (if val
	     (add-hook 'org-blocker-hook
		       'org-block-todo-from-checkboxes)
	   (remove-hook 'org-blocker-hook
			'org-block-todo-from-checkboxes)))
  :group 'org-todo
  :type 'boolean)

(defcustom org-treat-insert-todo-heading-as-state-change nil
  "Non-nil means inserting a TODO heading is treated as state change.
So when the command `\\[org-insert-todo-heading]' is used, state change
logging will apply if appropriate.  When nil, the new TODO item will
be inserted directly, and no logging will take place."
  :group 'org-todo
  :type 'boolean)

(defcustom org-treat-S-cursor-todo-selection-as-state-change t
  "Non-nil means switching TODO states with S-cursor counts as state change.
This is the default behavior.  However, setting this to nil allows a
convenient way to select a TODO state and bypass any logging associated
with that."
  :group 'org-todo
  :type 'boolean)

(defcustom org-todo-state-tags-triggers nil
  "Tag changes that should be triggered by TODO state changes.
This is a list.  Each entry is

  (state-change (tag . flag) .......)

State-change can be a string with a state, and empty string to indicate the
state that has no TODO keyword, or it can be one of the symbols `todo'
or `done', meaning any not-done or done state, respectively."
  :group 'org-todo
  :group 'org-tags
  :type '(repeat
	  (cons (choice :tag "When changing to"
			(const :tag "Not-done state" todo)
			(const :tag "Done state" done)
			(string :tag "State"))
		(repeat
		 (cons :tag "Tag action"
		       (string :tag "Tag")
		       (choice (const :tag "Add" t) (const :tag "Remove" nil)))))))

(defcustom org-log-done nil
  "Information to record when a task moves to the DONE state.

Possible values are:

nil     Don't add anything, just change the keyword
time    Add a time stamp to the task
note    Prompt for a note and add it with template `org-log-note-headings'

This option can also be set with on a per-file-basis with

   #+STARTUP: nologdone
   #+STARTUP: logdone
   #+STARTUP: lognotedone

You can have local logging settings for a subtree by setting the LOGGING
property to one or more of these keywords."
  :group 'org-todo
  :group 'org-progress
  :type '(choice
	  (const :tag "No logging" nil)
	  (const :tag "Record CLOSED timestamp" time)
	  (const :tag "Record CLOSED timestamp with note." note)))

;; Normalize old uses of org-log-done.
(cond
 ((eq org-log-done t) (setq org-log-done 'time))
 ((and (listp org-log-done) (memq 'done org-log-done))
  (setq org-log-done 'note)))

(defcustom org-log-reschedule nil
  "Information to record when the scheduling date of a task is modified.

Possible values are:

nil     Don't add anything, just change the date
time    Add a time stamp to the task
note    Prompt for a note and add it with template `org-log-note-headings'

This option can also be set with on a per-file-basis with

   #+STARTUP: nologreschedule
   #+STARTUP: logreschedule
   #+STARTUP: lognotereschedule

You can have local logging settings for a subtree by setting the LOGGING
property to one or more of these keywords.

This variable has an effect when calling `org-schedule' or
`org-agenda-schedule' only."
  :group 'org-todo
  :group 'org-progress
  :type '(choice
	  (const :tag "No logging" nil)
	  (const :tag "Record timestamp" time)
	  (const :tag "Record timestamp with note" note)))

(defcustom org-log-redeadline nil
  "Information to record when the deadline date of a task is modified.

Possible values are:

nil     Don't add anything, just change the date
time    Add a time stamp to the task
note    Prompt for a note and add it with template `org-log-note-headings'

This option can also be set with on a per-file-basis with

   #+STARTUP: nologredeadline
   #+STARTUP: logredeadline
   #+STARTUP: lognoteredeadline

You can have local logging settings for a subtree by setting the LOGGING
property to one or more of these keywords.

This variable has an effect when calling `org-deadline' or
`org-agenda-deadline' only."
  :group 'org-todo
  :group 'org-progress
  :type '(choice
	  (const :tag "No logging" nil)
	  (const :tag "Record timestamp" time)
	  (const :tag "Record timestamp with note." note)))

(defcustom org-log-note-clock-out nil
  "Non-nil means record a note when clocking out of an item.
This can also be configured on a per-file basis by adding one of
the following lines anywhere in the buffer:

   #+STARTUP: lognoteclock-out
   #+STARTUP: nolognoteclock-out"
  :group 'org-todo
  :group 'org-progress
  :type 'boolean)

(defcustom org-log-done-with-time t
  "Non-nil means the CLOSED time stamp will contain date and time.
When nil, only the date will be recorded."
  :group 'org-progress
  :type 'boolean)

(defcustom org-log-note-headings
  '((done .  "CLOSING NOTE %t")
    (state . "State %-12s from %-12S %t")
    (note .  "Note taken on %t")
    (reschedule .  "Rescheduled from %S on %t")
    (delschedule .  "Not scheduled, was %S on %t")
    (redeadline .  "New deadline from %S on %t")
    (deldeadline .  "Removed deadline, was %S on %t")
    (refile . "Refiled on %t")
    (clock-out . ""))
  "Headings for notes added to entries.

The value is an alist, with the car being a symbol indicating the
note context, and the cdr is the heading to be used.  The heading
may also be the empty string.  The following placeholders can be
used:

  %t  a time stamp.
  %T  an active time stamp instead the default inactive one
  %d  a short-format time stamp.
  %D  an active short-format time stamp.
  %s  the new TODO state or time stamp (inactive), in double quotes.
  %S  the old TODO state or time stamp (inactive), in double quotes.
  %u  the user name.
  %U  full user name.

In fact, it is not a good idea to change the `state' entry,
because Agenda Log mode depends on the format of these entries."
  :group  'org-todo
  :group  'org-progress
  :type '(list :greedy t
	       (cons (const :tag "Heading when closing an item" done) string)
	       (cons (const :tag
			    "Heading when changing todo state (todo sequence only)"
			    state) string)
	       (cons (const :tag "Heading when just taking a note" note) string)
	       (cons (const :tag "Heading when rescheduling" reschedule) string)
	       (cons (const :tag "Heading when an item is no longer scheduled" delschedule) string)
	       (cons (const :tag "Heading when changing deadline"  redeadline) string)
	       (cons (const :tag "Heading when deleting a deadline" deldeadline) string)
	       (cons (const :tag "Heading when refiling" refile) string)
	       (cons (const :tag "Heading when clocking out" clock-out) string)))

(unless (assq 'note org-log-note-headings)
  (push '(note . "%t") org-log-note-headings))

(defvaralias 'org-log-state-notes-into-drawer 'org-log-into-drawer)

(defcustom org-log-into-drawer nil
  "Non-nil means insert state change notes and time stamps into a drawer.
When nil, state changes notes will be inserted after the headline and
any scheduling and clock lines, but not inside a drawer.

The value of this variable should be the name of the drawer to use.
LOGBOOK is proposed as the default drawer for this purpose, you can
also set this to a string to define the drawer of your choice.

A value of t is also allowed, representing \"LOGBOOK\".

A value of t or nil can also be set with on a per-file-basis with

   #+STARTUP: logdrawer
   #+STARTUP: nologdrawer

If this variable is set, `org-log-state-notes-insert-after-drawers'
will be ignored.

You can set the property LOG_INTO_DRAWER to overrule this setting for
a subtree.

Do not check directly this variable in a Lisp program.  Call
function `org-log-into-drawer' instead."
  :group 'org-todo
  :group 'org-progress
  :type '(choice
	  (const :tag "Not into a drawer" nil)
	  (const :tag "LOGBOOK" t)
	  (string :tag "Other")))

(defun org-log-into-drawer ()
  "Name of the log drawer, as a string, or nil.
This is the value of `org-log-into-drawer'.  However, if the
current entry has or inherits a LOG_INTO_DRAWER property, it will
be used instead of the default value."
  (let ((p (org-entry-get nil "LOG_INTO_DRAWER" 'inherit t)))
    (cond ((equal p "nil") nil)
	  ((equal p "t") "LOGBOOK")
	  ((stringp p) p)
	  (p "LOGBOOK")
	  ((stringp org-log-into-drawer) org-log-into-drawer)
	  (org-log-into-drawer "LOGBOOK"))))

(defcustom org-log-state-notes-insert-after-drawers nil
  "Non-nil means insert state change notes after any drawers in entry.
Only the drawers that *immediately* follow the headline and the
deadline/scheduled line are skipped.
When nil, insert notes right after the heading and perhaps the line
with deadline/scheduling if present.

This variable will have no effect if `org-log-into-drawer' is
set."
  :group 'org-todo
  :group 'org-progress
  :type 'boolean)

(defcustom org-log-states-order-reversed t
  "Non-nil means the latest state note will be directly after heading.
When nil, the state change notes will be ordered according to time.

This option can also be set with on a per-file-basis with

   #+STARTUP: logstatesreversed
   #+STARTUP: nologstatesreversed"
  :group 'org-todo
  :group 'org-progress
  :type 'boolean)

(defcustom org-todo-repeat-to-state nil
  "The TODO state to which a repeater should return the repeating task.
By default this is the first task of a TODO sequence or the
previous state of a TYPE_TODO set.  But you can specify to use
the previous state in a TODO sequence or a string.

Alternatively, you can set the :REPEAT_TO_STATE: property of the
entry, which has precedence over this option."
  :group 'org-todo
  :version "24.1"
  :type '(choice (const :tag "Use the previous TODO state" t)
		 (const :tag "Use the head of the TODO sequence" nil)
		 (string :tag "Use a specific TODO state")))

(defcustom org-log-repeat 'time
  "Non-nil means record moving through the DONE state when triggering repeat.
An auto-repeating task is immediately switched back to TODO when
marked DONE.  If you are not logging state changes (by adding \"@\"
or \"!\" to the TODO keyword definition), or set `org-log-done' to
record a closing note, there will be no record of the task moving
through DONE.  This variable forces taking a note anyway.

nil     Don't force a record
time    Record a time stamp
note    Prompt for a note and add it with template `org-log-note-headings'

This option can also be set with on a per-file-basis with

   #+STARTUP: nologrepeat
   #+STARTUP: logrepeat
   #+STARTUP: lognoterepeat

You can have local logging settings for a subtree by setting the LOGGING
property to one or more of these keywords."
  :group 'org-todo
  :group 'org-progress
  :type '(choice
	  (const :tag "Don't force a record" nil)
	  (const :tag "Force recording the DONE state" time)
	  (const :tag "Force recording a note with the DONE state" note)))

(defcustom org-todo-repeat-hook nil
  "Hook that is run after a task has been repeated."
  :package-version '(Org . "9.2")
  :group 'org-todo
  :type 'hook)

(defgroup org-priorities nil
  "Priorities in Org mode."
  :tag "Org Priorities"
  :group 'org-todo)

(defvaralias 'org-enable-priority-commands 'org-priority-enable-commands)
(defcustom org-priority-enable-commands t
  "Non-nil means priority commands are active.
When nil, these commands will be disabled, so that you never accidentally
set a priority."
  :group 'org-priorities
  :type 'boolean)

(defvaralias 'org-highest-priority 'org-priority-highest)

(defcustom org-priority-highest ?A
  "The highest priority of TODO items.

A character like ?A, ?B, etc., or a numeric value like 1, 2, etc.

The default is the character ?A, which is 65 as a numeric value.

If you set `org-priority-highest' to a numeric value inferior to
65, Org assumes you want to use digits for the priority cookie.
If you set it to >=65, Org assumes you want to use alphabetical
characters.

In both cases, the value of `org-priority-highest' must be
smaller than `org-priority-lowest': for example, if \"A\" is the
highest priority, it is smaller than the lowest \"C\" priority:
65 < 67."
  :group 'org-priorities
  :type '(choice
	  (character :tag "Character")
	  (integer :tag "Integer (< 65)")))

(defvaralias 'org-lowest-priority 'org-priority-lowest)
(defcustom org-priority-lowest ?C
  "The lowest priority of TODO items.

A character like ?C, ?B, etc., or a numeric value like 9, 8, etc.

The default is the character ?C, which is 67 as a numeric value.

If you set `org-priority-lowest' to a numeric value inferior to
65, Org assumes you want to use digits for the priority cookie.
If you set it to >=65, Org assumes you want to use alphabetical
characters.

In both cases, the value of `org-priority-lowest' must be greater
than `org-priority-highest': for example, if \"C\" is the lowest
priority, it is greater than the highest \"A\" priority: 67 >
65."
  :group 'org-priorities
  :type '(choice
	  (character :tag "Character")
	  (integer :tag "Integer (< 65)")))

(defvaralias 'org-default-priority 'org-priority-default)
(defcustom org-priority-default ?B
  "The default priority of TODO items.
This is the priority an item gets if no explicit priority is given.
When starting to cycle on an empty priority the first step in the cycle
depends on `org-priority-start-cycle-with-default'.  The resulting first
step priority must not exceed the range from `org-priority-highest' to
`org-priority-lowest' which means that `org-priority-default' has to be
in this range exclusive or inclusive to the range boundaries.  Else the
first step refuses to set the default and the second will fall back on
\(depending on the command used) the highest or lowest priority."
  :group 'org-priorities
  :type '(choice
	  (character :tag "Character")
	  (integer :tag "Integer (< 65)")))

(defcustom org-priority-start-cycle-with-default t
  "Non-nil means start with default priority when starting to cycle.
When this is nil, the first step in the cycle will be (depending on the
command used) one higher or lower than the default priority.
See also `org-priority-default'."
  :group 'org-priorities
  :type 'boolean)

(defvaralias 'org-get-priority-function 'org-priority-get-priority-function)
(defcustom org-priority-get-priority-function nil
  "Function to extract the priority from a string.
The string is normally the headline.  If this is nil, Org
computes the priority from the priority cookie like [#A] in the
headline.  It returns an integer, increasing by 1000 for each
priority level.

The user can set a different function here, which should take a
string as an argument and return the numeric priority."
  :group 'org-priorities
  :version "24.1"
  :type '(choice
	  (const nil)
	  (function)))

(defgroup org-time nil
  "Options concerning time stamps and deadlines in Org mode."
  :tag "Org Time"
  :group 'org)

(defvaralias 'org-time-stamp-rounding-minutes 'org-timestamp-rounding-minutes)
(defcustom org-timestamp-rounding-minutes '(0 5)
  "Number of minutes to round time stamps to.
\\<org-mode-map>\
These are two values, the first applies when first creating a time stamp.
The second applies when changing it with the commands `S-up' and `S-down'.
When changing the time stamp, this means that it will change in steps
of N minutes, as given by the second value.

When a setting is 0 or 1, insert the time unmodified.  Useful rounding
numbers should be factors of 60, so for example 5, 10, 15.

When this is larger than 1, you can still force an exact time stamp by using
a double prefix argument to a time stamp command like \
`\\[org-timestamp]' or `\\[org-timestamp-inactive],
and by using a prefix arg to `S-up/down' to specify the exact number
of minutes to shift."
  :group 'org-time
  :get (lambda (var) ; Make sure both elements are there
	 (if (integerp (default-value var))
	     (list (default-value var) 5)
	   (default-value var)))
  :type '(list
	  (integer :tag "when inserting times")
	  (integer :tag "when modifying times")))

;; Normalize old customizations of this variable.
(when (integerp org-timestamp-rounding-minutes)
  (setq org-timestamp-rounding-minutes
	(list org-timestamp-rounding-minutes
	      org-timestamp-rounding-minutes)))

(defcustom org-display-custom-times nil
  "Non-nil means overlay custom formats over all time stamps.
The formats are defined through the variable `org-timestamp-custom-formats'.
To turn this on on a per-file basis, insert anywhere in the file:
   #+STARTUP: customtime"
  :group 'org-time
  :type 'sexp)
(make-variable-buffer-local 'org-display-custom-times)

(defvaralias 'org-time-stamp-custom-formats 'org-timestamp-custom-formats)
(defcustom org-timestamp-custom-formats
  '("%m/%d/%y %a" . "%m/%d/%y %a %H:%M") ; american
  "Custom formats for time stamps.

See `format-time-string' for the syntax.

These are overlaid over the default ISO format if the variable
`org-display-custom-times' is set.  Time like %H:%M should be at the
end of the second format.  The custom formats are also honored by export
commands, if custom time display is turned on at the time of export.

This variable also affects how timestamps are exported.

Leading \"<\" and trailing \">\" pair will be stripped from the format
strings."
  :group 'org-time
  :package-version '(Org . "9.6")
  :type '(cons string string))

(defun org-time-stamp-format (&optional with-time inactive custom)
  "Get timestamp format for a time string.

The format is based on `org-timestamp-formats' (if CUSTOM is nil) or or
`org-timestamp-custom-formats' (if CUSTOM if non-nil).

When optional argument WITH-TIME is non-nil, the timestamp will contain
time.

When optional argument INACTIVE is nil, format active timestamp.
When `no-brackets', strip timestamp brackets.
Otherwise, format inactive timestamp."
  (let ((format (funcall
                 (if with-time #'cdr #'car)
                 (if custom
                     org-timestamp-custom-formats
                   org-timestamp-formats))))
    ;; Strip brackets, if any.
    (when (or (and (string-prefix-p "<" format)
                   (string-suffix-p ">" format))
              (and (string-prefix-p "[" format)
                   (string-suffix-p "]" format)))
      (setq format (substring format 1 -1)))
    (pcase inactive
      (`no-brackets format)
      (`nil (concat "<" format ">"))
      (_ (concat "[" format "]")))))

(defcustom org-deadline-warning-days 14
  "Number of days before expiration during which a deadline becomes active.
This variable governs the display in sparse trees and in the agenda.
When 0 or negative, it means use this number (the absolute value of it)
even if a deadline has a different individual lead time specified.

Custom commands can set this variable in the options section."
  :group 'org-time
  :group 'org-agenda-daily/weekly
  :type 'integer)

(defcustom org-scheduled-delay-days 0
  "Number of days before a scheduled item becomes active.
This variable governs the display in sparse trees and in the agenda.
The default value (i.e. 0) means: don't delay scheduled item.
When negative, it means use this number (the absolute value of it)
even if a scheduled item has a different individual delay time
specified.

Custom commands can set this variable in the options section."
  :group 'org-time
  :group 'org-agenda-daily/weekly
  :version "24.4"
  :package-version '(Org . "8.0")
  :type 'integer)

(defcustom org-read-date-prefer-future t
  "Non-nil means assume future for incomplete date input from user.
This affects the following situations:
1. The user gives a month but not a year.
   For example, if it is April and you enter \"feb 2\", this will be read
   as Feb 2, *next* year.  \"May 5\", however, will be this year.
2. The user gives a day, but no month.
   For example, if today is the 15th, and you enter \"3\", Org will read
   this as the third of *next* month.  However, if you enter \"17\",
   it will be considered as *this* month.

If you set this variable to the symbol `time', then also the following
will work:

3. If the user gives a time.
   If the time is before now, it will be interpreted as tomorrow.

Currently none of this works for ISO week specifications.

When this option is nil, the current day, month and year will always be
used as defaults.

See also `org-agenda-jump-prefer-future'."
  :group 'org-time
  :type '(choice
	  (const :tag "Never" nil)
	  (const :tag "Check month and day" t)
	  (const :tag "Check month, day, and time" time)))

(defcustom org-agenda-jump-prefer-future 'org-read-date-prefer-future
  "Should the agenda jump command prefer the future for incomplete dates?
The default is to do the same as configured in `org-read-date-prefer-future'.
But you can also set a deviating value here.
This may t or nil, or the symbol `org-read-date-prefer-future'."
  :group 'org-agenda
  :group 'org-time
  :version "24.1"
  :type '(choice
	  (const :tag "Use org-read-date-prefer-future"
		 org-read-date-prefer-future)
	  (const :tag "Never" nil)
	  (const :tag "Always" t)))

(defcustom org-read-date-force-compatible-dates t
  "Should date/time prompt force dates that are guaranteed to work in Emacs?

Depending on the system Emacs is running on, certain dates cannot
be represented with the type used internally to represent time.
Dates between 1970-1-1 and 2038-1-1 can always be represented
correctly.  Some systems allow for earlier dates, some for later,
some for both.  One way to find out is to insert any date into an
Org buffer, putting the cursor on the year and hitting S-up and
S-down to test the range.

When this variable is set to t, the date/time prompt will not let
you specify dates outside the 1970-2037 range, so it is certain that
these dates will work in whatever version of Emacs you are
running, and also that you can move a file from one Emacs implementation
to another.  Whenever Org is forcing the year for you, it will display
a message and beep.

When this variable is nil, Org will check if the date is
representable in the specific Emacs implementation you are using.
If not, it will force a year, usually the current year, and beep
to remind you.  Currently this setting is not recommended because
the likelihood that you will open your Org files in an Emacs that
has limited date range is not negligible.

A workaround for this problem is to use diary sexp dates for time
stamps outside of this range."
  :group 'org-time
  :version "24.1"
  :type 'boolean)

(defcustom org-read-date-display-live t
  "Non-nil means display current interpretation of date prompt live.
This display will be in an overlay, in the minibuffer.  Note that
live display is only active when `org-read-date-popup-calendar'
is non-nil."
  :group 'org-time
  :type 'boolean)

(defvaralias 'org-popup-calendar-for-date-prompt
  'org-read-date-popup-calendar)

(defcustom org-read-date-popup-calendar t
  "Non-nil means pop up a calendar when prompting for a date.
In the calendar, the date can be selected with mouse-1.  However, the
minibuffer will also be active, and you can simply enter the date as well.
When nil, only the minibuffer will be available."
  :group 'org-time
  :type 'boolean)

(defcustom org-extend-today-until 0
  "The hour when your day really ends.  Must be an integer.
This has influence for the following applications:
- When switching the agenda to \"today\".  If it is still earlier than
  the time given here, the day recognized as TODAY is actually yesterday.
- When a date is read from the user and it is still before the time given
  here, the current date and time will be assumed to be yesterday, 23:59.
  Also, timestamps inserted in capture templates follow this rule.

IMPORTANT:  This is a feature whose implementation is and likely will
remain incomplete.  Really, it is only here because past midnight seems to
be the favorite working time of John Wiegley :-)"
  :group 'org-time
  :type 'integer)

(defcustom org-use-effective-time nil
  "If non-nil, consider `org-extend-today-until' when creating timestamps.
For example, if `org-extend-today-until' is 8, and it's 4am, then the
\"effective time\" of any timestamps between midnight and 8am will be
23:59 of the previous day."
  :group 'org-time
  :version "24.1"
  :type 'boolean)

(defcustom org-use-last-clock-out-time-as-effective-time nil
  "When non-nil, use the last clock out time for `org-todo'.
Note that this option has precedence over the combined use of
`org-use-effective-time' and `org-extend-today-until'."
  :group 'org-time
  :version "24.4"
  :package-version '(Org . "8.0")
  :type 'boolean)

(defcustom org-edit-timestamp-down-means-later nil
  "Non-nil means S-down will increase the time in a time stamp.
When nil, S-up will increase."
  :group 'org-time
  :type 'boolean)

(defcustom org-calendar-follow-timestamp-change t
  "Non-nil means make the calendar window follow timestamp changes.
When a timestamp is modified and the calendar window is visible, it will be
moved to the new date."
  :group 'org-time
  :type 'boolean)

(defgroup org-tags nil
  "Options concerning tags in Org mode."
  :tag "Org Tags"
  :group 'org)

(defcustom org-tag-alist nil
  "Default tags available in Org files.

The value of this variable is an alist.  Associations either:

  (TAG)
  (TAG . SELECT)
  (SPECIAL)

where TAG is a tag as a string, SELECT is character, used to
select that tag through the fast tag selection interface, and
SPECIAL is one of the following keywords: `:startgroup',
`:startgrouptag', `:grouptags', `:endgroup', `:endgrouptag' or
`:newline'.  These keywords are used to define a hierarchy of
tags.  See manual for details.

When this variable is nil, Org mode bases tag input on what is
already in the buffer.  The value can be overridden locally by
using a TAGS keyword, e.g.,

  #+TAGS: tag1 tag2

See also `org-tag-persistent-alist' to sidestep this behavior."
  :group 'org-tags
  :type '(repeat
	  (choice
	   (cons :tag "Tag with key"
		 (string    :tag "Tag name")
		 (character :tag "Access char"))
	   (list :tag "Tag" (string :tag "Tag name"))
	   (const :tag "Start radio group" (:startgroup))
	   (const :tag "Start tag group, non distinct" (:startgrouptag))
	   (const :tag "Group tags delimiter" (:grouptags))
	   (const :tag "End radio group" (:endgroup))
	   (const :tag "End tag group, non distinct" (:endgrouptag))
	   (const :tag "New line" (:newline)))))

(defcustom org-tag-persistent-alist nil
  "Tags always available in Org files.

The value of this variable is an alist.  Associations either:

  (TAG)
  (TAG . SELECT)
  (SPECIAL)

where TAG is a tag as a string, SELECT is a character, used to
select that tag through the fast tag selection interface, and
SPECIAL is one of the following keywords: `:startgroup',
`:startgrouptag', `:grouptags', `:endgroup', `:endgrouptag' or
`:newline'.  These keywords are used to define a hierarchy of
tags.  See manual for details.

Unlike to `org-tag-alist', tags defined in this variable do not
depend on a local TAGS keyword.  Instead, to disable these tags
on a per-file basis, insert anywhere in the file:

  #+STARTUP: noptag"
  :group 'org-tags
  :type '(repeat
	  (choice
	   (cons :tag "Tag with key"
		 (string    :tag "Tag name")
		 (character :tag "Access char"))
	   (list :tag "Tag" (string :tag "Tag name"))
	   (const :tag "Start radio group" (:startgroup))
	   (const :tag "Start tag group, non distinct" (:startgrouptag))
	   (const :tag "Group tags delimiter" (:grouptags))
	   (const :tag "End radio group" (:endgroup))
	   (const :tag "End tag group, non distinct" (:endgrouptag))
	   (const :tag "New line" (:newline)))))

(defcustom org-complete-tags-always-offer-all-agenda-tags nil
  "If non-nil, always offer completion for all tags of all agenda files.

Setting this variable locally allows for dynamic generation of tag
completions in capture buffers.

  (add-hook \\='org-capture-mode-hook
            (lambda ()
              (setq-local org-complete-tags-always-offer-all-agenda-tags t)))"
  :group 'org-tags
  :version "24.1"
  :type 'boolean)

(defvar org-file-tags nil
  "List of tags that can be inherited by all entries in the file.
The tags will be inherited if the variable `org-use-tag-inheritance'
says they should be.
This variable is populated from #+FILETAGS lines.")

(defcustom org-use-fast-tag-selection 'auto
  "Non-nil means use fast tag selection scheme.
This is a special interface to select and deselect tags with single keys.
When nil, fast selection is never used.
When the symbol `auto', fast selection is used if and only if selection
characters for tags have been configured, either through the variable
`org-tag-alist' or through a #+TAGS line in the buffer.
When t, fast selection is always used and selection keys are assigned
automatically if necessary."
  :group 'org-tags
  :type '(choice
	  (const :tag "Always" t)
	  (const :tag "Never" nil)
	  (const :tag "When selection characters are configured" auto)))

(defcustom org-fast-tag-selection-single-key nil
  "Non-nil means fast tag selection exits after first change.
When nil, you have to press RET to exit it.
During fast tag selection, you can toggle this flag with `C-c'.
This variable can also have the value `expert'.  In this case, the window
displaying the tags menu is not even shown, until you press `C-c' again."
  :group 'org-tags
  :type '(choice
	  (const :tag "No" nil)
	  (const :tag "Yes" t)
	  (const :tag "Expert" expert)))

(defvar org--fast-tag-selection-keys
  (string-to-list "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~")
  "List of chars to be used as bindings by `org-fast-tag-selection'.")

(defcustom org-fast-tag-selection-maximum-tags (length org--fast-tag-selection-keys)
  "Set the maximum tags number for fast tag selection.
This variable only affects tags without explicit key bindings outside
tag groups.  All the tags with user bindings and all the tags
corresponding to tag groups are always displayed.

When the number of tags with bindings + tags inside tag groups is
smaller than `org-fast-tag-selection-maximum-tags', tags without
explicit bindings will be assigned a binding and displayed up to the
limit."
  :package-version '(Org . "9.7")
  :group 'org-tags
  :type 'number
  :safe #'numberp)

(defvar org-fast-tag-selection-include-todo nil
  "Non-nil means fast tags selection interface will also offer TODO states.
This is an undocumented feature, you should not rely on it.")

(defcustom org-tags-column -77
  "The column to which tags should be indented in a headline.
If this number is positive, it specifies the column.  If it is negative,
it means that the tags should be flushright to that column.  For example,
-80 works well for a normal 80 character screen.
When 0, place tags directly after headline text, with only one space in
between."
  :group 'org-tags
  :type 'integer)

(defcustom org-auto-align-tags t
  "Non-nil keeps tags aligned when modifying headlines.
Some operations (i.e. demoting) change the length of a headline and
therefore shift the tags around.  With this option turned on, after
each such operation the tags are again aligned to `org-tags-column'."
  :group 'org-tags
  :type 'boolean)

(defcustom org-use-tag-inheritance t
  "Non-nil means tags in levels apply also for sublevels.
When nil, only the tags directly given in a specific line apply there.
This may also be a list of tags that should be inherited, or a regexp that
matches tags that should be inherited.  Additional control is possible
with the variable  `org-tags-exclude-from-inheritance' which gives an
explicit list of tags to be excluded from inheritance, even if the value of
`org-use-tag-inheritance' would select it for inheritance.

If this option is t, a match early-on in a tree can lead to a large
number of matches in the subtree when constructing the agenda or creating
a sparse tree.  If you only want to see the first match in a tree during
a search, check out the variable `org-tags-match-list-sublevels'."
  :group 'org-tags
  :type '(choice
	  (const :tag "Not" nil)
	  (const :tag "Always" t)
	  (repeat :tag "Specific tags" (string :tag "Tag"))
	  (regexp :tag "Tags matched by regexp")))

(defcustom org-tags-exclude-from-inheritance nil
  "List of tags that should never be inherited.
This is a way to exclude a few tags from inheritance.  For way to do
the opposite, to actively allow inheritance for selected tags,
see the variable `org-use-tag-inheritance'."
  :group 'org-tags
  :type '(repeat (string :tag "Tag")))

(defun org-tag-inherit-p (tag)
  "Check if TAG is one that should be inherited."
  (cond
   ((member tag org-tags-exclude-from-inheritance) nil)
   ((eq org-use-tag-inheritance t) t)
   ((not org-use-tag-inheritance) nil)
   ((stringp org-use-tag-inheritance)
    (string-match org-use-tag-inheritance tag))
   ((listp org-use-tag-inheritance)
    (member tag org-use-tag-inheritance))
   (t (error "Invalid setting of `org-use-tag-inheritance'"))))

(defcustom org-tags-match-list-sublevels t
  "Non-nil means list also sublevels of headlines matching a search.
This variable applies to tags/property searches, and also to stuck
projects because this search is based on a tags match as well.

When set to the symbol `indented', sublevels are indented with
leading dots.

Because of tag inheritance (see variable `org-use-tag-inheritance'),
the sublevels of a headline matching a tag search often also match
the same search.  Listing all of them can create very long lists.
Setting this variable to nil causes subtrees of a match to be skipped.

This variable is semi-obsolete and probably should always be true.  It
is better to limit inheritance to certain tags using the variables
`org-use-tag-inheritance' and `org-tags-exclude-from-inheritance'."
  :group 'org-tags
  :type '(choice
	  (const :tag "No, don't list them" nil)
	  (const :tag "Yes, do list them" t)
	  (const :tag "List them, indented with leading dots" indented)))

(defcustom org-tags-sort-function nil
  "When set, tags are sorted using this function as a comparator."
  :group 'org-tags
  :type '(choice
	  (const :tag "No sorting" nil)
	  (const :tag "Alphabetical" string-collate-lessp)
	  (const :tag "Reverse alphabetical" org-string-collate-greaterp)
	  (function :tag "Custom function" nil)))

(defvar org-tags-history nil
  "History of minibuffer reads for tags.")
(defvar org-last-tags-completion-table nil
  "The last used completion table for tags.")
(defvar org-after-tags-change-hook nil
  "Hook that is run after the tags in a line have changed.")

(defgroup org-properties nil
  "Options concerning properties in Org mode."
  :tag "Org Properties"
  :group 'org)

(defcustom org-property-format "%-10s %s"
  "How property key/value pairs should be formatted by `indent-line'.
When `indent-line' hits a property definition, it will format the line
according to this format, mainly to make sure that the values are
lined-up with respect to each other."
  :group 'org-properties
  :type 'string)

(defcustom org-properties-postprocess-alist nil
  "Alist of properties and functions to adjust inserted values.
Elements of this alist must be of the form

  ([string] [function])

where [string] must be a property name and [function] must be a
lambda expression: this lambda expression must take one argument,
the value to adjust, and return the new value as a string.

For example, this element will allow the property \"Remaining\"
to be updated wrt the relation between the \"Effort\" property
and the clock summary:

 ((\"Remaining\" (lambda(value)
                   (let ((clocksum (org-clock-sum-current-item))
                         (effort (org-duration-to-minutes
                                   (org-entry-get (point) \"Effort\"))))
                     (org-minutes-to-clocksum-string (- effort clocksum))))))"
  :group 'org-properties
  :version "24.1"
  :type '(alist :key-type (string     :tag "Property")
		:value-type (function :tag "Function")))

(defcustom org-use-property-inheritance nil
  "Non-nil means properties apply also for sublevels.

This setting is chiefly used during property searches.  Turning it on can
cause significant overhead when doing a search, which is why it is not
on by default.

When nil, only the properties directly given in the current entry count.
When t, every property is inherited.  The value may also be a list of
properties that should have inheritance, or a regular expression matching
properties that should be inherited.

However, note that some special properties use inheritance under special
circumstances (not in searches).  Examples are CATEGORY, ARCHIVE, COLUMNS,
and the properties ending in \"_ALL\" when they are used as descriptor
for valid values of a property.

Note for programmers:
When querying an entry with `org-entry-get', you can control if inheritance
should be used.  By default, `org-entry-get' looks only at the local
properties.  You can request inheritance by setting the inherit argument
to t (to force inheritance) or to `selective' (to respect the setting
in this variable)."
  :group 'org-properties
  :type '(choice
	  (const :tag "Not" nil)
	  (const :tag "Always" t)
	  (repeat :tag "Specific properties" (string :tag "Property"))
	  (regexp :tag "Properties matched by regexp")))

(defun org-property-inherit-p (property)
  "Return a non-nil value if PROPERTY should be inherited."
  (cond
   ((eq org-use-property-inheritance t) t)
   ((not org-use-property-inheritance) nil)
   ((stringp org-use-property-inheritance)
    (string-match org-use-property-inheritance property))
   ((listp org-use-property-inheritance)
    (member-ignore-case property org-use-property-inheritance))
   (t (error "Invalid setting of `org-use-property-inheritance'"))))

(defcustom org-property-separators nil
  "An alist to control how properties are combined.

The car of each item should be either a list of property names or
a regular expression, while the cdr should be the separator to
use when combining that property.

If an alist item cannot be found that matches a given property, a
single space will be used as the separator."
  :group 'org-properties
  :package-version '(Org . "9.6")
  :type '(alist :key-type (choice (repeat :tag "Properties" string)
                                  (string :tag "Regular Expression"))
                :value-type (restricted-sexp :tag "Separator"
                                             :match-alternatives (stringp)
                                             :value " ")))

(defun org--property-get-separator (property)
  "Get the separator to use for combining PROPERTY."
  (or
   (catch 'separator
     (dolist (spec org-property-separators)
       (if (listp (car spec))
           (if (member property (car spec))
               (throw 'separator (cdr spec)))
         (if (string-match-p (car spec) property)
             (throw 'separator (cdr spec))))))
   " "))

(defcustom org-columns-default-format "%25ITEM %TODO %3PRIORITY %TAGS"
  "The default column format, if no other format has been defined.
This variable can be set on the per-file basis by inserting a line

#+COLUMNS: %25ITEM ....."
  :group 'org-properties
  :type 'string)

(defcustom org-columns-default-format-for-agenda nil
  "The default column format in an agenda buffer.
This will be used for column view in the agenda unless a format has
been set by adding `org-overriding-columns-format' to the local
settings list of a custom agenda view.  When nil, the columns format
for the first item in the agenda list will be used, or as a fall-back,
`org-columns-default-format'."
  :group 'org-properties
  :type '(choice
	  (const :tag "No default" nil)
	  (string :tag "Format string")))

(defcustom org-columns-ellipses ".."
  "The ellipses to be used when a field in column view is truncated.
When this is the empty string, as many characters as possible are shown,
but then there will be no visual indication that the field has been truncated.
When this is a string of length N, the last N characters of a truncated
field are replaced by this string.  If the column is narrower than the
ellipses string, only part of the ellipses string will be shown."
  :group 'org-properties
  :type 'string)

(defconst org-global-properties-fixed
  '(("VISIBILITY_ALL" . "folded children content all")
    ("CLOCK_MODELINE_TOTAL_ALL" . "current today repeat all auto"))
  "List of property/value pairs that can be inherited by any entry.

These are fixed values, for the preset properties.  The user variable
that can be used to add to this list is `org-global-properties'.

The entries in this list are cons cells where the car is a property
name and cdr is a string with the value.  If the value represents
multiple items like an \"_ALL\" property, separate the items by
spaces.")

(defcustom org-global-properties nil
  "List of property/value pairs that can be inherited by any entry.

This list will be combined with the constant `org-global-properties-fixed'.

The entries in this list are cons cells where the car is a property
name and cdr is a string with the value.

Buffer local properties are added either by a document property drawer

:PROPERTIES:
:NAME: VALUE
:END:

or by adding lines like

#+PROPERTY: NAME VALUE"
  :group 'org-properties
  :type '(repeat
	  (cons (string :tag "Property")
		(string :tag "Value"))))

(defvar-local org-keyword-properties nil
  "List of property/value pairs inherited by any entry.

Valid for the current buffer.  This variable is populated from
PROPERTY keywords.

Note that properties are defined also in property drawers.
Properties defined there take precedence over properties defined
as keywords.")

(defgroup org-agenda nil
  "Options concerning agenda views in Org mode."
  :tag "Org Agenda"
  :group 'org)

(defvar-local org-category nil
  "Variable used by Org files to set a category for agenda display.
There are multiple ways to set the category.  One way is to set
it in the document property drawer.  For example:

:PROPERTIES:
:CATEGORY: ELisp
:END:

Other ways to define it is as an Emacs file variable, for example

#   -*- mode: org; org-category: \"ELisp\"

or for the file to contain a special line:

#+CATEGORY: ELisp

If the file does not specify a category, then file's base name
is used instead.")
(put 'org-category 'safe-local-variable (lambda (x) (or (symbolp x) (stringp x))))

(defcustom org-agenda-files nil
  "The files to be used for agenda display.

If an entry is a directory, all files in that directory that are matched
by `org-agenda-file-regexp' will be part of the file list.

If the value of the variable is not a list but a single file name, then
the list of agenda files is actually stored and maintained in that file,
one agenda file per line.  In this file paths can be given relative to
`org-directory'.  Tilde expansion and environment variable substitution
are also made.

Entries may be added to this list with `\\[org-agenda-file-to-front]'
and removed with `\\[org-remove-file]'."
  :group 'org-agenda
  :type '(choice
	  (repeat :tag "List of files and directories" file)
	  (file :tag "Store list in a file\n" :value "~/.agenda_files")))

(defcustom org-agenda-file-regexp "\\`[^.].*\\.org\\'"
  "Regular expression to match files for `org-agenda-files'.
If any element in the list in that variable contains a directory instead
of a normal file, all files in that directory that are matched by this
regular expression will be included."
  :group 'org-agenda
  :type 'regexp)

(defvaralias 'org-agenda-multi-occur-extra-files
  'org-agenda-text-search-extra-files)

(defcustom org-agenda-text-search-extra-files nil
  "List of extra files to be searched by text search commands.
These files will be searched in addition to the agenda files by the
commands `org-search-view' (`\\[org-agenda] s') \
and `org-occur-in-agenda-files'.
Note that these files will only be searched for text search commands,
not for the other agenda views like todo lists, tag searches or the weekly
agenda.  This variable is intended to list notes and possibly archive files
that should also be searched by these two commands.
In fact, if the first element in the list is the symbol `agenda-archives',
then all archive files of all agenda files will be added to the search
scope."
  :group 'org-agenda
  :type '(set :greedy t
	      (const :tag "Agenda Archives" agenda-archives)
	      (repeat :inline t (file))))

(defcustom org-agenda-skip-unavailable-files nil
  "Non-nil means to just skip non-reachable files in `org-agenda-files'.
A nil value means to remove them, after a query, from the list."
  :group 'org-agenda
  :type 'boolean)

(defgroup org-latex nil
  "Options for embedding LaTeX code into Org mode."
  :tag "Org LaTeX"
  :group 'org)

(defcustom org-format-latex-options
  '(:foreground default :background default :scale 1.0
		:html-foreground "Black" :html-background "Transparent"
		:html-scale 1.0 :matchers ("begin" "$1" "$" "$$" "\\(" "\\["))
  "Options for creating images from LaTeX fragments.
This is a property list with the following properties:
:foreground  the foreground color for images embedded in Emacs, e.g. \"Black\".
             `default' means use the foreground of the default face.
             `auto' means use the foreground from the text face.
:background  the background color, or \"Transparent\".
             `default' means use the background of the default face.
             `auto' means use the background from the text face.
:scale       a scaling factor for the size of the images, to get more pixels
:html-foreground, :html-background, :html-scale
             the same numbers for HTML export.
:matchers    a list indicating which matchers should be used to
             find LaTeX fragments.  Valid members of this list are:
             \"begin\" find environments
             \"$1\"    find single characters surrounded by $.$
             \"$\"     find math expressions surrounded by $...$
             \"$$\"    find math expressions surrounded by $$....$$
             \"\\(\"    find math expressions surrounded by \\(...\\)
             \"\\=\\[\"    find math expressions surrounded by \\=\\[...\\]"
  :group 'org-latex
  :type 'plist)

(defcustom org-format-latex-signal-error t
  "Non-nil means signal an error when image creation of LaTeX snippets fails.
When nil, just push out a message."
  :group 'org-latex
  :version "24.1"
  :type 'boolean)

(defcustom org-latex-to-mathml-jar-file nil
  "Value of\"%j\" in `org-latex-to-mathml-convert-command'.
Use this to specify additional executable file say a jar file.

When using MathToWeb as the converter, specify the full-path to
your mathtoweb.jar file."
  :group 'org-latex
  :version "24.1"
  :type '(choice
	  (const :tag "None" nil)
	  (file :tag "JAR file" :must-match t)))

(defcustom org-latex-to-mathml-convert-command nil
  "Command to convert LaTeX fragments to MathML.
Replace format-specifiers in the command as noted below and use
`shell-command' to convert LaTeX to MathML.
%j:     Executable file in fully expanded form as specified by
        `org-latex-to-mathml-jar-file'.
%I:     Input LaTeX file in fully expanded form.
%i:     The latex fragment to be converted.
%o:     Output MathML file.

This command is used by `org-create-math-formula'.

When using MathToWeb as the converter, set this option to
\"java -jar %j -unicode -force -df %o %I\".

When using LaTeXML set this option to
\"latexmlmath \"%i\" --presentationmathml=%o\"."
  :group 'org-latex
  :version "24.1"
  :type '(choice
	  (const :tag "None" nil)
	  (string :tag "\nShell command")))

(defcustom org-latex-to-html-convert-command nil
  "Shell command to convert LaTeX fragments to HTML.
This command is very open-ended: the output of the command will
directly replace the LaTeX fragment in the resulting HTML.
Replace format-specifiers in the command as noted below and use
`shell-command' to convert LaTeX to HTML.
%i:     The LaTeX fragment to be converted.

For example, this could be used with LaTeXML as
\"latexmlc \\='literal:%i\\=' --profile=math --preload=siunitx.sty 2>/dev/null\".

The LaTeX fragment is replaced as is, without escaping special shell
syntax.  It may be necessary to use single-quotes around \\='%i\\=', not
double-quotes.  Else a math fragment such as \"$y = 200$\" may be
expanded to \" = 200\"."
  :group 'org-latex
  :package-version '(Org . "9.4")
  :type '(choice
	  (const :tag "None" nil)
	  (string :tag "Shell command")))

(defcustom org-preview-latex-default-process 'dvipng
  "The default process to convert LaTeX fragments to image files.
All available processes and theirs documents can be found in
`org-preview-latex-process-alist', which see."
  :group 'org-latex
  :version "26.1"
  :package-version '(Org . "9.0")
  :type 'symbol)

(defcustom org-preview-latex-process-alist
  '((dvipng
     :programs ("latex" "dvipng")
     :description "dvi > png"
     :message "you need to install the programs: latex and dvipng."
     :image-input-type "dvi"
     :image-output-type "png"
     :image-size-adjust (1.0 . 1.0)
     :latex-compiler ("latex -interaction nonstopmode -output-directory %o %f")
     :image-converter ("dvipng -D %D -T tight -o %O %f")
     :transparent-image-converter
     ("dvipng -D %D -T tight -bg Transparent -o %O %f"))
    (dvisvgm
     :programs ("latex" "dvisvgm")
     :description "dvi > svg"
     :message "you need to install the programs: latex and dvisvgm."
     :image-input-type "dvi"
     :image-output-type "svg"
     :image-size-adjust (1.7 . 1.5)
     :latex-compiler ("latex -interaction nonstopmode -output-directory %o %f")
     :image-converter ("dvisvgm %f --no-fonts --exact-bbox --scale=%S --output=%O"))
    (imagemagick
     :programs ("latex" "convert")
     :description "pdf > png"
     :message "you need to install the programs: latex and imagemagick."
     :image-input-type "pdf"
     :image-output-type "png"
     :image-size-adjust (1.0 . 1.0)
     :latex-compiler ("pdflatex -interaction nonstopmode -output-directory %o %f")
     :image-converter
     ("convert -density %D -trim -antialias %f -quality 100 %O")))
  "Definitions of external processes for LaTeX previewing.
Org mode can use some external commands to generate TeX snippet's images for
previewing or inserting into HTML files, e.g., \"dvipng\".  This variable tells
`org-create-formula-image' how to call them.

The value is an alist with the pattern (NAME . PROPERTIES).  NAME is a symbol.
PROPERTIES accepts the following attributes:

  :programs           list of strings, required programs.
  :description        string, describe the process.
  :message            string, message it when required programs cannot be found.
  :image-input-type   string, input file type of image converter (e.g., \"dvi\").
  :image-output-type  string, output file type of image converter (e.g., \"png\").
  :image-size-adjust  cons of numbers, the car element is used to adjust LaTeX
                      image size showed in buffer and the cdr element is for
                      HTML file.  This option is only useful for process
                      developers, users should use variable
                      `org-format-latex-options' instead.
  :post-clean         list of strings, files matched are to be cleaned up once
                      the image is generated.  When nil, the files with \".dvi\",
                      \".xdv\", \".pdf\", \".tex\", \".aux\", \".log\", \".svg\",
                      \".png\", \".jpg\", \".jpeg\" or \".out\" extension will
                      be cleaned up.
  :latex-header       list of strings, the LaTeX header of the snippet file.
                      When nil, the fallback value is used instead, which is
                      controlled by `org-format-latex-header',
                      `org-latex-default-packages-alist' and
                      `org-latex-packages-alist', which see.
  :latex-compiler     list of LaTeX commands, as strings.  Each of them is given
                      to the shell.  Place-holders \"%t\", \"%b\" and \"%o\" are
                      replaced with values defined below.
  :image-converter    list of image converter commands strings.  Each of them is
                      given to the shell and supports any of the following
                      place-holders defined below.

If set, :transparent-image-converter is used instead of :image-converter to
convert an image when the background color is nil or \"Transparent\".

Place-holders used by `:image-converter' and `:latex-compiler':

  %f    input file name
  %b    base name of input file
  %o    base directory of input file
  %O    absolute output file name

Place-holders only used by `:image-converter':

  %D    dpi, which is used to adjust image size by some processing commands.
  %S    the image size scale ratio, which is used to adjust image size by some
        processing commands."
  :group 'org-latex
  :package-version '(Org . "9.6")
  :type '(alist :tag "LaTeX to image backends"
		:value-type (plist)))

(defcustom org-preview-latex-image-directory "ltximg/"
  "Path to store latex preview images.
A relative path here creates many directories relative to the
processed Org files paths.  An absolute path puts all preview
images at the same place."
  :group 'org-latex
  :version "26.1"
  :package-version '(Org . "9.0")
  :type 'string)

(defun org-format-latex-mathml-available-p ()
  "Return t if `org-latex-to-mathml-convert-command' is usable."
  (save-match-data
    (when (and (boundp 'org-latex-to-mathml-convert-command)
	       org-latex-to-mathml-convert-command)
      (let ((executable (car (split-string
			      org-latex-to-mathml-convert-command))))
	(when (executable-find executable)
	  (if (string-match
	       "%j" org-latex-to-mathml-convert-command)
	      (file-readable-p org-latex-to-mathml-jar-file)
	    t))))))

(defcustom org-format-latex-header "\\documentclass{article}
\\usepackage[usenames]{color}
\[DEFAULT-PACKAGES]
\[PACKAGES]
\\pagestyle{empty}             % do not remove
% The settings below are copied from fullpage.sty
\\setlength{\\textwidth}{\\paperwidth}
\\addtolength{\\textwidth}{-3cm}
\\setlength{\\oddsidemargin}{1.5cm}
\\addtolength{\\oddsidemargin}{-2.54cm}
\\setlength{\\evensidemargin}{\\oddsidemargin}
\\setlength{\\textheight}{\\paperheight}
\\addtolength{\\textheight}{-\\headheight}
\\addtolength{\\textheight}{-\\headsep}
\\addtolength{\\textheight}{-\\footskip}
\\addtolength{\\textheight}{-3cm}
\\setlength{\\topmargin}{1.5cm}
\\addtolength{\\topmargin}{-2.54cm}"
  "The document header used for processing LaTeX fragments.
It is imperative that this header make sure that no page number
appears on the page.  The package defined in the variables
`org-latex-default-packages-alist' and `org-latex-packages-alist'
will either replace the placeholder \"[PACKAGES]\" in this
header, or they will be appended."
  :group 'org-latex
  :type 'string)

(defun org-set-packages-alist (var val)
  "Set the packages alist and make sure it has 3 elements per entry."
  (set-default-toplevel-value var (mapcar (lambda (x)
		     (if (and (consp x) (= (length x) 2))
			 (list (car x) (nth 1 x) t)
		       x))
		   val)))

(defun org-get-packages-alist (var)
  "Get the packages alist and make sure it has 3 elements per entry."
  (mapcar (lambda (x)
	    (if (and (consp x) (= (length x) 2))
		(list (car x) (nth 1 x) t)
	      x))
	  (default-value var)))

(defcustom org-latex-default-packages-alist
  '(;; amsmath before fontspec for lualatex and xetex
    (""     "amsmath"   t ("lualatex" "xetex"))
    ;; fontspec ASAP for lualatex and xetex
    (""     "fontspec"  t ("lualatex" "xetex"))
    ;; inputenc and fontenc are for pdflatex only
    ("AUTO" "inputenc"  t ("pdflatex"))
    ("T1"   "fontenc"   t ("pdflatex"))
    (""     "graphicx"  t)
    (""     "longtable" nil)
    (""     "wrapfig"   nil)
    (""     "rotating"  nil)
    ("normalem" "ulem"  t)
    ;; amsmath and amssymb after inputenc/fontenc for pdflatex
    (""     "amsmath"   t ("pdflatex"))
    (""     "amssymb"   t ("pdflatex"))
    (""     "capt-of"   nil)
    (""     "hyperref"  nil))
  "Alist of default packages to be inserted in the header.

Change this only if one of the packages here causes an
incompatibility with another package you are using.

The packages in this list are needed by one part or another of
Org mode to function properly:

- fontspec: for font and character selection in lualatex and xetex
- inputenc, fontenc:  for basic font and character selection
  in pdflatex
- graphicx: for including images
- longtable: For multipage tables
- wrapfig: for figure placement
- rotating: for sideways figures and tables
- ulem: for underline and strike-through
- amsmath: for subscript and superscript and math environments
- amssymb: for various symbols used for interpreting the entities
  in `org-entities'.  You can skip some of this package if you don't
  use any of the symbols.
- capt-of: for captions outside of floats
- hyperref: for cross references

Therefore you should not modify this variable unless you know
what you are doing.  The one reason to change it anyway is that
you might be loading some other package that conflicts with one
of the default packages.  Each element is either a cell or
a string.

A cell is of the format

  (\"options\" \"package\" SNIPPET-FLAG COMPILERS)

If SNIPPET-FLAG is non-nil, the package also needs to be included
when compiling LaTeX snippets into images for inclusion into
non-LaTeX output.

COMPILERS is a list of compilers that should include the package,
see `org-latex-compiler'.  If the document compiler is not in the
list, and the list is non-nil, the package will not be inserted
in the final document.

A string will be inserted as-is in the header of the document."
  :group 'org-latex
  :group 'org-export-latex
  :set 'org-set-packages-alist
  :get 'org-get-packages-alist
  :version "26.1"
  :package-version '(Org . "8.3")
  :type '(repeat
	  (choice
	   (list :tag "options/package pair"
		 (string :tag "options")
		 (string :tag "package")
		 (boolean :tag "Snippet")
		 (choice
		  (const :tag "For all compilers" nil)
		  (repeat :tag "Allowed compiler" string)))
	   (string :tag "A line of LaTeX"))))

(defcustom org-latex-packages-alist nil
  "Alist of packages to be inserted in every LaTeX header.

These will be inserted after `org-latex-default-packages-alist'.
Each element is either a cell or a string.

A cell is of the format:

    (\"options\" \"package\" SNIPPET-FLAG COMPILERS)

SNIPPET-FLAG, when non-nil, indicates that this package is also
needed when turning LaTeX snippets into images for inclusion into
non-LaTeX output.

COMPILERS is a list of compilers that should include the package,
see `org-latex-compiler'.  If the document compiler is not in the
list, and the list is non-nil, the package will not be inserted
in the final document.

A string will be inserted as-is in the header of the document.

Make sure that you only list packages here which:

  - you want in every file;
  - do not conflict with the setup in `org-format-latex-header';
  - do not conflict with the default packages in
    `org-latex-default-packages-alist'."
  :group 'org-latex
  :group 'org-export-latex
  :set 'org-set-packages-alist
  :get 'org-get-packages-alist
  :type
  '(repeat
    (choice
     (list :tag "options/package pair"
           (string :tag "options")
           (string :tag "package")
           (boolean :tag "snippet")
           (choice
            (const :tag "All compilers include this package" nil)
            (repeat :tag "Only include from these compilers" string)))
     (string :tag "A line of LaTeX"))))

(defgroup org-appearance nil
  "Settings for Org mode appearance."
  :tag "Org Appearance"
  :group 'org)

(defcustom org-level-color-stars-only nil
  "Non-nil means fontify only the stars in each headline.
When nil, the entire headline is fontified.
Changing it requires restart of `font-lock-mode' to become effective
also in regions already fontified."
  :group 'org-appearance
  :type 'boolean)

(defcustom org-hide-leading-stars nil
  "Non-nil means hide the first N-1 stars in a headline.
This works by using the face `org-hide' for these stars.  This
face is white for a light background, and black for a dark
background.  You may have to customize the face `org-hide' to
make this work.
Changing it requires restart of `font-lock-mode' to become effective
also in regions already fontified.
You may also set this on a per-file basis by adding one of the following
lines to the buffer:

   #+STARTUP: hidestars
   #+STARTUP: showstars"
  :group 'org-appearance
  :type 'boolean)

(defcustom org-hidden-keywords nil
  "List of symbols corresponding to keywords to be hidden in the Org buffer.
For example, a value (title) for this list makes the document's title
appear in the buffer without the initial \"#+TITLE:\" part."
  :group 'org-appearance
  :package-version '(Org . "9.5")
  :type '(set (const :tag "#+AUTHOR" author)
	      (const :tag "#+DATE" date)
	      (const :tag "#+EMAIL" email)
	      (const :tag "#+SUBTITLE" subtitle)
	      (const :tag "#+TITLE" title)))

(defcustom org-custom-properties nil
  "List of properties (as strings) with a special meaning.
The default use of these custom properties is to let the user
hide them with `org-toggle-custom-properties-visibility'."
  :group 'org-properties
  :group 'org-appearance
  :version "24.3"
  :type '(repeat (string :tag "Property Name")))

(defcustom org-fontify-todo-headline nil
  "Non-nil means change the face of a headline if it is marked as TODO.
Normally, only the TODO/DONE keyword indicates the state of a headline.
When this is non-nil, the headline after the keyword is set to the
`org-headline-todo' as an additional indication."
  :group 'org-appearance
  :package-version '(Org . "9.4")
  :type 'boolean
  :safe #'booleanp)

(defcustom org-fontify-done-headline t
  "Non-nil means change the face of a headline if it is marked DONE.
Normally, only the TODO/DONE keyword indicates the state of a headline.
When this is non-nil, the headline after the keyword is set to the
`org-headline-done' as an additional indication."
  :group 'org-appearance
  :package-version '(Org . "9.4")
  :type 'boolean)

(defcustom org-fontify-emphasized-text t
  "Non-nil means fontify *bold*, /italic/ and _underlined_ text.
Changing this variable requires a restart of Emacs to take effect."
  :group 'org-appearance
  :type 'boolean)

(defcustom org-fontify-whole-heading-line nil
  "Non-nil means fontify the whole line for headings.
This is useful when setting a background color for the
org-level-* faces."
  :group 'org-appearance
  :type 'boolean)

(defcustom org-fontify-whole-block-delimiter-line t
  "Non-nil means fontify the whole line for begin/end lines of blocks.
This is useful when setting a background color for the
org-block-begin-line and org-block-end-line faces."
  :group 'org-appearance
  :type 'boolean)

(defcustom org-highlight-latex-and-related nil
  "Non-nil means highlight LaTeX related syntax in the buffer.
When non-nil, the value should be a list containing any of the
following symbols:
  `native'   Highlight LaTeX snippets and environments natively.
  `latex'    Highlight LaTeX snippets and environments.
  `script'   Highlight subscript and superscript.
  `entities' Highlight entities."
  :group 'org-appearance
  :version "24.4"
  :package-version '(Org . "8.0")
  :type '(choice
	  (const :tag "No highlighting" nil)
	  (set :greedy t :tag "Highlight"
	       (const :tag "LaTeX snippets and environments (native)" native)
	       (const :tag "LaTeX snippets and environments" latex)
	       (const :tag "Subscript and superscript" script)
	       (const :tag "Entities" entities))))

(defcustom org-hide-emphasis-markers nil
  "Non-nil means font-lock should hide the emphasis marker characters."
  :group 'org-appearance
  :type 'boolean
  :safe #'booleanp)

(defcustom org-hide-macro-markers nil
  "Non-nil means font-lock should hide the brackets marking macro calls."
  :group 'org-appearance
  :type 'boolean)

(defcustom org-pretty-entities nil
  "Non-nil means show entities as UTF8 characters.
When nil, the \\name form remains in the buffer."
  :group 'org-appearance
  :version "24.1"
  :type 'boolean)

(defcustom org-pretty-entities-include-sub-superscripts t
  "Non-nil means pretty entity display includes formatting sub/superscripts."
  :group 'org-appearance
  :version "24.1"
  :type 'boolean)

(defvar org-emph-re nil
  "Regular expression for matching emphasis.
After a match, the match groups contain these elements:
0  The match of the full regular expression, including the characters
   before and after the proper match
1  The character before the proper match, or empty at beginning of line
2  The proper match, including the leading and trailing markers
3  The leading marker like * or /, indicating the type of highlighting
4  The text between the emphasis markers, not including the markers
5  The character after the match, empty at the end of a line")

(defvar org-verbatim-re nil
  "Regular expression for matching verbatim text.")

(defvar org-emphasis-regexp-components) ; defined just below
(defvar org-emphasis-alist) ; defined just below
(defun org-set-emph-re (var val)
  "Set variable and compute the emphasis regular expression."
  (set-default-toplevel-value var val)
  (when (and (boundp 'org-emphasis-alist)
	     (boundp 'org-emphasis-regexp-components)
	     org-emphasis-alist org-emphasis-regexp-components)
    (pcase-let*
	((`(,pre ,post ,border ,body ,nl) org-emphasis-regexp-components)
	 (body (if (<= nl 0) body
		 (format "%s*?\\(?:\n%s*?\\)\\{0,%d\\}" body body nl)))
	 (template
	  (format (concat "\\([%s]\\|^\\)" ;before markers
			  "\\(\\([%%s]\\)\\([^%s]\\|[^%s]%s[^%s]\\)\\3\\)"
			  "\\([%s]\\|$\\)") ;after markers
		  pre border border body border post)))
      (setq org-emph-re (format template "*/_+"))
      (setq org-verbatim-re (format template "=~")))))

;; This used to be a defcustom (Org <8.0) but allowing the users to
;; set this option proved cumbersome.  See this message/thread:
;; https://orgmode.org/list/B72CDC2B-72F6-43A8-AC70-E6E6295766EC@gmail.com
(defvar org-emphasis-regexp-components
  '("-[:space:]('\"{" "-[:space:].,:!?;'\")}\\[" "[:space:]" "." 1)
  "Components used to build the regular expression for emphasis.
This is a list with five entries.  Terminology:  In an emphasis string
like \" *strong word* \", we call the initial space PREMATCH, the final
space POSTMATCH, the stars MARKERS, \"s\" and \"d\" are BORDER characters
and \"trong wor\" is the body.  The different components in this variable
specify what is allowed/forbidden in each part:

pre          Chars allowed as prematch.  Beginning of line will be allowed too.
post         Chars allowed as postmatch.  End of line will be allowed too.
border       The chars *forbidden* as border characters.
body-regexp  A regexp like \".\" to match a body character.  Don't use
             non-shy groups here, and don't allow newline here.
newline      The maximum number of newlines allowed in an emphasis exp.

You need to reload Org or to restart Emacs after setting this.")

(defcustom org-emphasis-alist
  '(("*" bold)
    ("/" italic)
    ("_" underline)
    ("=" org-verbatim verbatim)
    ("~" org-code verbatim)
    ("+" (:strike-through t)))
  "Alist of characters and faces to emphasize text.
Text starting and ending with a special character will be emphasized,
for example *bold*, _underlined_ and /italic/.  This variable sets the
marker characters and the face to be used by font-lock for highlighting
in Org buffers.

You need to reload Org or to restart Emacs after customizing this."
  :group 'org-appearance
  :set 'org-set-emph-re
  :version "24.4"
  :package-version '(Org . "8.0")
  :type '(repeat
	  (list
	   (string :tag "Marker character")
	   (choice
	    (face :tag "Font-lock-face")
	    (plist :tag "Face property list"))
	   (option (const verbatim)))))

(defvar org-protecting-blocks '("src" "example" "export")
  "Blocks that contain text that is quoted, i.e. not processed as Org syntax.
This is needed for font-lock setup.")

;;; Functions and variables from their packages
;;  Declared here to avoid compiler warnings
(defvar mark-active)

;; Various packages
(declare-function calc-eval "calc" (str &optional separator &rest args))
(declare-function calendar-forward-day "cal-move" (arg))
(declare-function calendar-goto-date "cal-move" (date))
(declare-function calendar-goto-today "cal-move" ())
(declare-function calendar-iso-from-absolute "cal-iso" (date))
(declare-function calendar-iso-to-absolute "cal-iso" (date))
(declare-function cdlatex-compute-tables "ext:cdlatex" ())
(declare-function cdlatex-tab "ext:cdlatex" ())
(declare-function dired-get-filename
		  "dired"
		  (&optional localp no-error-if-not-filep))
(declare-function org-agenda-change-all-lines
		  "org-agenda"
		  (newhead hdmarker &optional fixface just-this))
(declare-function org-agenda-check-for-timestamp-as-reason-to-ignore-todo-item
		  "org-agenda"
		  (&optional end))
(declare-function org-agenda-copy-local-variable "org-agenda" (var))
(declare-function org-agenda-format-item
		  "org-agenda"
		  (extra txt &optional level category tags dotime
			 remove-re habitp))
(declare-function org-agenda-new-marker "org-agenda" (&optional pos))
(declare-function org-agenda-save-markers-for-cut-and-paste
		  "org-agenda"
		  (beg end))
(declare-function org-agenda-set-restriction-lock "org-agenda" (&optional type))
(declare-function org-agenda-skip "org-agenda" (&optional element))
(declare-function org-attach-expand "org-attach" (file))
(declare-function org-attach-reveal "org-attach" ())
(declare-function org-attach-reveal-in-emacs "org-attach" ())
(declare-function org-gnus-follow-link "org-gnus" (&optional group article))
(declare-function org-indent-mode "org-indent" (&optional arg))
(declare-function org-inlinetask-goto-beginning "org-inlinetask" ())
(declare-function org-inlinetask-goto-end "org-inlinetask" ())
(declare-function org-inlinetask-in-task-p "org-inlinetask" ())
(declare-function org-inlinetask-remove-END-maybe "org-inlinetask" ())
(declare-function parse-time-string "parse-time" (string))

(defvar align-mode-rules-list)
(defvar calc-embedded-close-formula)
(defvar calc-embedded-open-formula)
(defvar calc-embedded-open-mode)
(defvar font-lock-unfontify-region-function)
(defvar org-agenda-tags-todo-honor-ignore-options)
(defvar remember-data-file)
(defvar texmathp-why)

(declare-function org-clock-save-markers-for-cut-and-paste "org-clock" (beg end))
(declare-function org-clock-update-mode-line "org-clock" (&optional refresh))
(declare-function org-resolve-clocks "org-clock"
		  (&optional also-non-dangling-p prompt last-valid))

(defvar org-clock-start-time)
(defvar org-clock-marker (make-marker)
  "Marker recording the last clock-in.")
(defvar org-clock-hd-marker (make-marker)
  "Marker recording the last clock-in, but the headline position.")
(defvar org-clock-heading ""
  "The heading of the current clock entry.")
(defun org-clocking-buffer ()
  "Return the buffer where the clock is currently running.
Return nil if no clock is running."
  (marker-buffer org-clock-marker))
(defalias 'org-clock-is-active #'org-clocking-buffer)

(defun org-check-running-clock ()
  "Check if the current buffer contains the running clock.
If yes, offer to stop it and to save the buffer with the changes."
  (when (and (equal (marker-buffer org-clock-marker) (current-buffer))
	     (y-or-n-p (format "Clock-out in buffer %s before killing it? "
			       (buffer-name))))
    (org-clock-out)
    (when (y-or-n-p "Save changed buffer?")
      (save-buffer))))

(defun org-clocktable-try-shift (dir n)
  "Check if this line starts a clock table, if yes, shift the time block."
  (when (org-match-line "^[ \t]*#\\+BEGIN:[ \t]+clocktable\\>")
    (org-clocktable-shift dir n)))

;;;###autoload
(defun org-clock-persistence-insinuate ()
  "Set up hooks for clock persistence."
  (require 'org-clock)
  (add-hook 'org-mode-hook 'org-clock-load)
  (add-hook 'kill-emacs-hook 'org-clock-save))

(defun org-clock-auto-clockout-insinuate ()
  "Set up hook for auto clocking out when Emacs is idle.
See `org-clock-auto-clockout-timer'.

This function is meant to be added to the user configuration."
  (require 'org-clock)
  (add-hook 'org-clock-in-hook #'org-clock-auto-clockout t))

(defgroup org-archive nil
  "Options concerning archiving in Org mode."
  :tag "Org Archive"
  :group 'org-structure)

(defcustom org-archive-location "%s_archive::"
  "The location where subtrees should be archived.

The value of this variable is a string, consisting of two parts,
separated by a double-colon.  The first part is a filename and
the second part is a headline.

When the filename is omitted, archiving happens in the same file.
%s in the filename will be replaced by the current file
name (without the directory part).  Archiving to a different file
is useful to keep archived entries from contributing to the
Org Agenda.

The archived entries will be filed as subtrees of the specified
headline.  When the headline is omitted, the subtrees are simply
filed away at the end of the file, as top-level entries.  Also in
the heading you can use %s to represent the file name, this can be
useful when using the same archive for a number of different files.

Here are a few examples:
\"%s_archive::\"
	If the current file is Projects.org, archive in file
	Projects.org_archive, as top-level trees.  This is the default.

\"::* Archived Tasks\"
	Archive in the current file, under the top-level headline
	\"* Archived Tasks\".

\"~/org/archive.org::\"
	Archive in file ~/org/archive.org (absolute path), as top-level trees.

\"~/org/archive.org::* From %s\"
	Archive in file ~/org/archive.org (absolute path), under headlines
        \"From FILENAME\" where file name is the current file name.

\"~/org/datetree.org::datetree/* Finished Tasks\"
        The \"datetree/\" string is special, signifying to archive
        items to the datetree.  Items are placed in either the CLOSED
        date of the item, or the current date if there is no CLOSED date.
        The heading will be a subentry to the current date.  There doesn't
        need to be a heading, but there always needs to be a slash after
        datetree.  For example, to store archived items directly in the
        datetree, use \"~/org/datetree.org::datetree/\".

\"basement::** Finished Tasks\"
	Archive in file ./basement (relative path), as level 3 trees
	below the level 2 heading \"** Finished Tasks\".

You may define it locally by setting an ARCHIVE property.  If
such a property is found in the file or in an entry, and anywhere
up the hierarchy, it will be used.

You can also set it for the whole file using the keyword-syntax:

#+ARCHIVE: basement::** Finished Tasks"
  :group 'org-archive
  :type 'string)

(defcustom org-agenda-skip-archived-trees t
  "Non-nil means the agenda will skip any items located in archived trees.
An archived tree is a tree marked with the tag ARCHIVE.  The use of this
variable is no longer recommended, you should leave it at the value t.
Instead, use the key `v' to cycle the archives-mode in the agenda."
  :group 'org-archive
  :group 'org-agenda-skip
  :type 'boolean)

(defcustom org-columns-skip-archived-trees t
  "Non-nil means ignore archived trees when creating column view."
  :group 'org-archive
  :group 'org-properties
  :type 'boolean)

(defcustom org-sparse-tree-open-archived-trees nil
  "Non-nil means sparse tree construction shows matches in archived trees.
When nil, matches in these trees are highlighted, but the trees are kept in
collapsed state."
  :group 'org-archive
  :group 'org-sparse-trees
  :type 'boolean)

(defcustom org-sparse-tree-default-date-type nil
  "The default date type when building a sparse tree.
When this is nil, a date is a scheduled or a deadline timestamp.
Otherwise, these types are allowed:

        all: all timestamps
     active: only active timestamps (<...>)
   inactive: only inactive timestamps ([...])
  scheduled: only scheduled timestamps
   deadline: only deadline timestamps"
  :type '(choice (const :tag "Scheduled or deadline" nil)
		 (const :tag "All timestamps" all)
		 (const :tag "Only active timestamps" active)
		 (const :tag "Only inactive timestamps" inactive)
		 (const :tag "Only scheduled timestamps" scheduled)
		 (const :tag "Only deadline timestamps" deadline)
		 (const :tag "Only closed timestamps" closed))
  :version "26.1"
  :package-version '(Org . "8.3")
  :group 'org-sparse-trees)

(defalias 'org-advertized-archive-subtree 'org-archive-subtree)

;; Declare Column View Code

(declare-function org-columns-get-format-and-top-level "org-colview" ())
(declare-function org-columns-compute "org-colview" (property))

;; Declare ID code

(declare-function org-id-store-link "org-id")
(declare-function org-id-locations-load "org-id")
(declare-function org-id-locations-save "org-id")
(defvar org-id-track-globally)

;;; Variables for pre-computed regular expressions, all buffer local

(defvar-local org-todo-regexp nil
  "Matches any of the TODO state keywords.
Since TODO keywords are case-sensitive, `case-fold-search' is
expected to be bound to nil when matching against this regexp.")

(defvar-local org-not-done-regexp nil
  "Matches any of the TODO state keywords except the last one.
Since TODO keywords are case-sensitive, `case-fold-search' is
expected to be bound to nil when matching against this regexp.")

(defvar-local org-not-done-heading-regexp nil
  "Matches a TODO headline that is not done.
Since TODO keywords are case-sensitive, `case-fold-search' is
expected to be bound to nil when matching against this regexp.")

(defvar-local org-todo-line-regexp nil
  "Matches a headline and puts TODO state into group 2 if present.
Since TODO keywords are case-sensitive, `case-fold-search' is
expected to be bound to nil when matching against this regexp.")

(defvar-local org-complex-heading-regexp nil
  "Matches a headline and puts everything into groups:

group 1: Stars
group 2: The TODO keyword, maybe
group 3: Priority cookie
group 4: True headline
group 5: Tags

Since TODO keywords are case-sensitive, `case-fold-search' is
expected to be bound to nil when matching against this regexp.")

(defvar-local org-complex-heading-regexp-format nil
  "Printf format to make regexp to match an exact headline.
This regexp will match the headline of any node which has the
exact headline text that is put into the format, but may have any
TODO state, priority, tags, statistics cookies (at the beginning
or end of the headline title), or COMMENT keyword.")

(defvar-local org-todo-line-tags-regexp nil
  "Matches a headline and puts TODO state into group 2 if present.
Also put tags into group 4 if tags are present.")

(defconst org-plain-time-of-day-regexp
  (concat
   "\\(\\<[012]?[0-9]"
   "\\(\\(:\\([0-5][0-9]\\([AaPp][Mm]\\)?\\)\\)\\|\\([AaPp][Mm]\\)\\)\\>\\)"
   "\\(--?"
   "\\(\\<[012]?[0-9]"
   "\\(\\(:\\([0-5][0-9]\\([AaPp][Mm]\\)?\\)\\)\\|\\([AaPp][Mm]\\)\\)\\>\\)"
   "\\)?")
  "Regular expression to match a plain time or time range.
Examples:  11:45 or 8am-13:15 or 2:45-2:45pm.  After a match, the following
groups carry important information:
0  the full match
1  the first time, range or not
8  the second time, if it is a range.")

(defconst org-plain-time-extension-regexp
  (concat
   "\\(\\<[012]?[0-9]"
   "\\(\\(:\\([0-5][0-9]\\([AaPp][Mm]\\)?\\)\\)\\|\\([AaPp][Mm]\\)\\)\\>\\)"
   "\\+\\([0-9]+\\)\\(:\\([0-5][0-9]\\)\\)?")
  "Regular expression to match a time range like 13:30+2:10 = 13:30-15:40.
Examples:  11:45 or 8am-13:15 or 2:45-2:45pm.  After a match, the following
groups carry important information:
0  the full match
7  hours of duration
9  minutes of duration")

(defconst org-stamp-time-of-day-regexp
  (concat
   "<\\([0-9]\\{4\\}-[0-9]\\{2\\}-[0-9]\\{2\\} +\\sw+ +\\)"
   "\\([012][0-9]:[0-5][0-9]\\)\\(-\\([012][0-9]:[0-5][0-9]\\)\\)?[^\n\r>]*?>"
   "\\(--?"
   "<\\1\\([012][0-9]:[0-5][0-9]\\)>\\)?")
  "Regular expression to match a timestamp time or time range.
After a match, the following groups carry important information:
0  the full match
1  date plus weekday, for back referencing to make sure
     both times are on the same day
2  the first time, range or not
4  the second time, if it is a range.")

(defconst org-startup-options
  '(("fold" org-startup-folded fold)
    ("overview" org-startup-folded overview)
    ("nofold" org-startup-folded nofold)
    ("showall" org-startup-folded showall)
    ("show2levels" org-startup-folded show2levels)
    ("show3levels" org-startup-folded show3levels)
    ("show4levels" org-startup-folded show4levels)
    ("show5levels" org-startup-folded show5levels)
    ("showeverything" org-startup-folded showeverything)
    ("content" org-startup-folded content)
    ("indent" org-startup-indented t)
    ("noindent" org-startup-indented nil)
    ("num" org-startup-numerated t)
    ("nonum" org-startup-numerated nil)
    ("hidestars" org-hide-leading-stars t)
    ("showstars" org-hide-leading-stars nil)
    ("odd" org-odd-levels-only t)
    ("oddeven" org-odd-levels-only nil)
    ("align" org-startup-align-all-tables t)
    ("noalign" org-startup-align-all-tables nil)
    ("shrink" org-startup-shrink-all-tables t)
    ("descriptivelinks" org-link-descriptive t)
    ("literallinks" org-link-descriptive nil)
    ("inlineimages" org-startup-with-inline-images t)
    ("noinlineimages" org-startup-with-inline-images nil)
    ("latexpreview" org-startup-with-latex-preview t)
    ("nolatexpreview" org-startup-with-latex-preview nil)
    ("customtime" org-display-custom-times t)
    ("logdone" org-log-done time)
    ("lognotedone" org-log-done note)
    ("nologdone" org-log-done nil)
    ("lognoteclock-out" org-log-note-clock-out t)
    ("nolognoteclock-out" org-log-note-clock-out nil)
    ("logrepeat" org-log-repeat state)
    ("lognoterepeat" org-log-repeat note)
    ("logdrawer" org-log-into-drawer t)
    ("nologdrawer" org-log-into-drawer nil)
    ("logstatesreversed" org-log-states-order-reversed t)
    ("nologstatesreversed" org-log-states-order-reversed nil)
    ("nologrepeat" org-log-repeat nil)
    ("logreschedule" org-log-reschedule time)
    ("lognotereschedule" org-log-reschedule note)
    ("nologreschedule" org-log-reschedule nil)
    ("logredeadline" org-log-redeadline time)
    ("lognoteredeadline" org-log-redeadline note)
    ("nologredeadline" org-log-redeadline nil)
    ("logrefile" org-log-refile time)
    ("lognoterefile" org-log-refile note)
    ("nologrefile" org-log-refile nil)
    ("fninline" org-footnote-define-inline t)
    ("nofninline" org-footnote-define-inline nil)
    ("fnlocal" org-footnote-section nil)
    ("fnauto" org-footnote-auto-label t)
    ("fnprompt" org-footnote-auto-label nil)
    ("fnconfirm" org-footnote-auto-label confirm)
    ("fnplain" org-footnote-auto-label plain)
    ("fnadjust" org-footnote-auto-adjust t)
    ("nofnadjust" org-footnote-auto-adjust nil)
    ("fnanon" org-footnote-auto-label anonymous)
    ("constcgs" constants-unit-system cgs)
    ("constSI" constants-unit-system SI)
    ("noptag" org-tag-persistent-alist nil)
    ("hideblocks" org-hide-block-startup t)
    ("nohideblocks" org-hide-block-startup nil)
    ("hidedrawers" org-hide-drawer-startup t)
    ("nohidedrawers" org-hide-drawer-startup nil)
    ("beamer" org-startup-with-beamer-mode t)
    ("entitiespretty" org-pretty-entities t)
    ("entitiesplain" org-pretty-entities nil))
  "Variable associated with STARTUP options for Org.
Each element is a list of three items: the startup options (as written
in the #+STARTUP line), the corresponding variable, and the value to set
this variable to if the option is found.  An optional fourth element PUSH
means to push this value onto the list in the variable.")

(defcustom org-group-tags t
  "When non-nil (the default), use group tags.
This can be turned on/off through `org-toggle-tags-groups'."
  :group 'org-tags
  :group 'org-startup
  :type 'boolean)

(defvar org-inhibit-startup nil)        ; Dynamically-scoped param.

(defun org-toggle-tags-groups ()
  "Toggle support for group tags.
Support for group tags is controlled by the option
`org-group-tags', which is non-nil by default."
  (interactive)
  (setq org-group-tags (not org-group-tags))
  (cond ((and (derived-mode-p 'org-agenda-mode)
	      org-group-tags)
	 (org-agenda-redo))
	((derived-mode-p 'org-mode)
	 (let ((org-inhibit-startup t)) (org-mode))))
  (message "Groups tags support has been turned %s"
	   (if org-group-tags "on" "off")))

(defun org--tag-add-to-alist (alist1 alist2)
  "Merge tags from ALIST1 into ALIST2.

Duplicates tags outside a group are removed.  Keywords and order
are preserved.

The function assumes ALIST1 and ALIST2 are proper tag alists.
See `org-tag-alist' for their structure."
  (cond
   ((null alist2) alist1)
   ((null alist1) alist2)
   (t
    (let ((to-add nil)
	  (group-flag nil))
      (dolist (tag-pair alist1)
	(pcase tag-pair
	  (`(,(or :startgrouptag :startgroup))
	   (setq group-flag t)
	   (push tag-pair to-add))
	  (`(,(or :endgrouptag :endgroup))
	   (setq group-flag nil)
	   (push tag-pair to-add))
	  (`(,(or :grouptags :newline))
	   (push tag-pair to-add))
	  (`(,tag . ,_)
	   ;; Remove duplicates from ALIST1, unless they are in
	   ;; a group.  Indeed, it makes sense to have a tag appear in
	   ;; multiple groups.
	   (when (or group-flag (not (assoc tag alist2)))
	     (push tag-pair to-add)))
	  (_ (error "Invalid association in tag alist: %S" tag-pair))))
      ;; Preserve order of ALIST1.
      (append (nreverse to-add) alist2)))))

(defun org-priority-to-value (s)
  "Convert priority string S to its numeric value."
  (or (save-match-data
	(and (string-match "\\([0-9]+\\)" s)
	     (string-to-number (match-string 1 s))))
      (string-to-char s)))

(defun org-set-regexps-and-options (&optional tags-only)
  "Precompute regular expressions used in the current buffer.
When optional argument TAGS-ONLY is non-nil, only compute tags
related expressions."
  (when (derived-mode-p 'org-mode)
    (let ((alist (org-collect-keywords
		  (append '("FILETAGS" "TAGS")
			  (and (not tags-only)
			       '("ARCHIVE" "CATEGORY" "COLUMNS" "CONSTANTS"
				 "LINK" "OPTIONS" "PRIORITIES" "PROPERTY"
				 "SEQ_TODO" "STARTUP" "TODO" "TYP_TODO")))
		  '("ARCHIVE" "CATEGORY" "COLUMNS" "PRIORITIES"))))
      ;; Startup options.  Get this early since it does change
      ;; behavior for other options (e.g., tags).
      (let ((startup (cl-mapcan (lambda (value) (split-string value))
				(cdr (assoc "STARTUP" alist)))))
	(dolist (option startup)
	  (pcase (assoc-string option org-startup-options t)
	    (`(,_ ,variable ,value t)
	     (unless (listp (symbol-value variable))
	       (set (make-local-variable variable) nil))
	     (add-to-list variable value))
	    (`(,_ ,variable ,value . ,_)
	     (set (make-local-variable variable) value))
	    (_ nil))))
      (setq-local org-file-tags
		  (mapcar #'org-add-prop-inherited
			  (cl-mapcan (lambda (value)
				       (cl-mapcan
					(lambda (k) (org-split-string k ":"))
					(split-string value)))
				     (cdr (assoc "FILETAGS" alist)))))
      (setq org-current-tag-alist
	    (org--tag-add-to-alist
	     org-tag-persistent-alist
	     (let ((tags (cdr (assoc "TAGS" alist))))
	       (if tags
		   (org-tag-string-to-alist
		    (mapconcat #'identity tags "\n"))
		 org-tag-alist))))
      (setq org-tag-groups-alist
	    (org-tag-alist-to-groups org-current-tag-alist))
      (unless tags-only
	;; Properties.
	(let ((properties nil))
	  (dolist (value (cdr (assoc "PROPERTY" alist)))
	    (when (string-match "\\(\\S-+\\)[ \t]+\\(.*\\)" value)
	      (setq properties (org--update-property-plist
				(match-string-no-properties 1 value)
				(match-string-no-properties 2 value)
				properties))))
	  (setq-local org-keyword-properties properties))
	;; Archive location.
	(let ((archive (cdr (assoc "ARCHIVE" alist))))
	  (when archive (setq-local org-archive-location archive)))
	;; Category.
	(let ((category (cdr (assoc "CATEGORY" alist))))
	  (when category
	    (setq-local org-category (intern category))
	    (setq-local org-keyword-properties
			(org--update-property-plist
			 "CATEGORY" category org-keyword-properties))))
	;; Columns.
	(let ((column (cdr (assoc "COLUMNS" alist))))
	  (when column (setq-local org-columns-default-format column)))
	;; Constants.
	(let ((store nil))
	  (dolist (pair (cl-mapcan #'split-string
				   (cdr (assoc "CONSTANTS" alist))))
	    (when (string-match "^\\([a-zA-Z0][_a-zA-Z0-9]*\\)=\\(.*\\)" pair)
	      (let* ((name (match-string 1 pair))
		     (value (match-string 2 pair))
		     (old (assoc name store)))
		(if old (setcdr old value)
		  (push (cons name value) store)))))
	  (setq org-table-formula-constants-local store))
	;; Link abbreviations.
	(let ((links
	       (delq nil
		     (mapcar
		      (lambda (value)
			(and (or
                              ;; "abbrev with spaces" spec
                              (string-match "\\`\"\\(.+[^\\]\\)\"[ \t]+\\(.+\\)" value)
                              ;; abbrev spec
                              (string-match "\\`\\(\\S-+\\)[ \t]+\\(.+\\)" value))
			     (cons (match-string-no-properties 1 value)
				   (match-string-no-properties 2 value))))
		      (cdr (assoc "LINK" alist))))))
	  (when links (setq org-link-abbrev-alist-local (nreverse links))))
	;; Priorities.
	(let ((value (cdr (assoc "PRIORITIES" alist))))
	  (pcase (and value (split-string value))
	    (`(,high ,low ,default . ,_)
	     (setq-local org-priority-highest (org-priority-to-value high))
	     (setq-local org-priority-lowest (org-priority-to-value low))
	     (setq-local org-priority-default (org-priority-to-value default)))))
	;; Scripts.
	(let ((value (cdr (assoc "OPTIONS" alist))))
	  (dolist (option value)
	    (when (string-match "\\^:\\(t\\|nil\\|{}\\)" option)
	      (setq-local org-use-sub-superscripts
			  (read (match-string 1 option))))))
	;; TODO keywords.
	(setq-local org-todo-kwd-alist nil)
	(setq-local org-todo-key-alist nil)
	(setq-local org-todo-key-trigger nil)
	(setq-local org-todo-keywords-1 nil)
	(setq-local org-done-keywords nil)
	(setq-local org-todo-heads nil)
	(setq-local org-todo-sets nil)
	(setq-local org-todo-log-states nil)
	(let ((todo-sequences
	       (or (append (mapcar (lambda (value)
				     (cons 'type (split-string value)))
				   (cdr (assoc "TYP_TODO" alist)))
			   (mapcar (lambda (value)
				     (cons 'sequence (split-string value)))
				   (append (cdr (assoc "TODO" alist))
					   (cdr (assoc "SEQ_TODO" alist)))))
		   (let ((d (default-value 'org-todo-keywords)))
		     (if (not (stringp (car d))) d
		       ;; XXX: Backward compatibility code.
		       (list (cons org-todo-interpretation d)))))))
	  (dolist (sequence todo-sequences)
	    (let* ((sequence (or (run-hook-with-args-until-success
				  'org-todo-setup-filter-hook sequence)
				 sequence))
		   (sequence-type (car sequence))
		   (keywords (cdr sequence))
		   (sep (member "|" keywords))
		   names alist)
	      (dolist (k (remove "|" keywords))
		(unless (string-match "^\\(.*?\\)\\(?:(\\([^!@/]\\)?.*?)\\)?$"
				      k)
		  (error "Invalid TODO keyword %s" k))
		(let ((name (match-string 1 k))
		      (key (match-string 2 k))
		      (log (org-extract-log-state-settings k)))
		  (push name names)
		  (push (cons name (and key (string-to-char key))) alist)
		  (when log (push log org-todo-log-states))))
	      (let* ((names (nreverse names))
		     (done (if sep (org-remove-keyword-keys (cdr sep))
			     (last names)))
		     (head (car names))
		     (tail (list sequence-type head (car done) (org-last done))))
		(add-to-list 'org-todo-heads head 'append)
		(push names org-todo-sets)
		(setq org-done-keywords (append org-done-keywords done nil))
		(setq org-todo-keywords-1 (append org-todo-keywords-1 names nil))
		(setq org-todo-key-alist
		      (append org-todo-key-alist
			      (and alist
				   (append '((:startgroup))
					   (nreverse alist)
					   '((:endgroup))))))
		(dolist (k names) (push (cons k tail) org-todo-kwd-alist))))))
	(setq org-todo-sets (nreverse org-todo-sets)
	      org-todo-kwd-alist (nreverse org-todo-kwd-alist)
	      org-todo-key-trigger (delq nil (mapcar #'cdr org-todo-key-alist))
	      org-todo-key-alist (org-assign-fast-keys org-todo-key-alist))
	;; Compute the regular expressions and other local variables.
	;; Using `org-outline-regexp-bol' would complicate them much,
	;; because of the fixed white space at the end of that string.
	(unless org-done-keywords
	  (setq org-done-keywords
		(and org-todo-keywords-1 (last org-todo-keywords-1))))
	(setq org-not-done-keywords
	      (org-delete-all org-done-keywords
			      (copy-sequence org-todo-keywords-1))
	      org-todo-regexp (regexp-opt org-todo-keywords-1 t)
	      org-not-done-regexp (regexp-opt org-not-done-keywords t)
	      org-not-done-heading-regexp
	      (format org-heading-keyword-regexp-format org-not-done-regexp)
	      org-todo-line-regexp
	      (format org-heading-keyword-maybe-regexp-format org-todo-regexp)
	      org-complex-heading-regexp
	      (concat "^\\(\\*+\\)"
		      "\\(?: +" org-todo-regexp "\\)?"
		      "\\(?: +\\(\\[#.\\]\\)\\)?"
		      "\\(?: +\\(.*?\\)\\)??"
		      "\\(?:[ \t]+\\(:[[:alnum:]_@#%:]+:\\)\\)?"
		      "[ \t]*$")
	      org-complex-heading-regexp-format
	      (concat "^\\(\\*+\\)"
		      "\\(?: +" org-todo-regexp "\\)?"
		      "\\(?: +\\(\\[#.\\]\\)\\)?"
		      "\\(?: +"
                      ;; Headline might be commented
                      "\\(?:" org-comment-string " +\\)?"
		      ;; Stats cookies can be stuck to body.
		      "\\(?:\\[[0-9%%/]+\\] *\\)*"
		      "\\(%s\\)"
		      "\\(?: *\\[[0-9%%/]+\\]\\)*"
		      "\\)"
		      "\\(?:[ \t]+\\(:[[:alnum:]_@#%%:]+:\\)\\)?"
		      "[ \t]*$")
	      org-todo-line-tags-regexp
	      (concat "^\\(\\*+\\)"
		      "\\(?: +" org-todo-regexp "\\)?"
		      "\\(?: +\\(.*?\\)\\)??"
		      "\\(?:[ \t]+\\(:[[:alnum:]:_@#%]+:\\)\\)?"
		      "[ \t]*$"))
	(org-compute-latex-and-related-regexp)))))

(defun org-collect-keywords (keywords &optional unique directory)
  "Return values for KEYWORDS in current buffer, as an alist.

KEYWORDS is a list of strings.  Return value is a list of
elements with the pattern:

  (NAME . LIST-OF-VALUES)

where NAME is the upcase name of the keyword, and LIST-OF-VALUES
is a list of non-empty values, as strings, in order of appearance
in the buffer.

When KEYWORD appears in UNIQUE list, LIST-OF-VALUE is its first
value, empty or not, appearing in the buffer, as a string.

When KEYWORD appears in DIRECTORIES, each value is a cons cell:

  (VALUE . DIRECTORY)

where VALUE is the regular value, and DIRECTORY is the variable
`default-directory' for the buffer containing the keyword.  This
is important for values containing relative file names, since the
function follows SETUPFILE keywords, and may change its working
directory."
  (let* ((keywords (cons "SETUPFILE" (mapcar #'upcase keywords)))
	 (unique (mapcar #'upcase unique))
	 (alist (org--collect-keywords-1
		 keywords unique directory
		 (and buffer-file-name (list buffer-file-name))
		 nil)))
    ;; Re-order results.
    (dolist (entry alist)
      (pcase entry
	(`(,_ . ,(and value (pred consp)))
	 (setcdr entry (nreverse value)))))
    (nreverse alist)))

(defun org--collect-keywords-1 (keywords unique directory files alist)
  (org-with-point-at 1
    (let ((case-fold-search t)
	  (regexp (org-make-options-regexp keywords)))
      (while (and keywords (re-search-forward regexp nil t))
        (let ((element (org-element-at-point)))
          (when (org-element-type-p element 'keyword)
            (let ((value (org-element-property :value element)))
              (pcase (org-element-property :key element)
		("SETUPFILE"
		 (when (org-string-nw-p value)
		   (let* ((uri (org-strip-quotes value))
			  (uri-is-url (org-url-p uri))
			  (uri (if uri-is-url
				   uri
				 (expand-file-name uri))))
		     (unless (member uri files)
		       (with-temp-buffer
			 (unless uri-is-url
			   (setq default-directory (file-name-directory uri)))
			 (let ((contents (org-file-contents uri :noerror)))
			   (when contents
			     (insert contents)
			     ;; Fake Org mode: `org-element-at-point'
			     ;; doesn't need full set-up.
			     (let ((major-mode 'org-mode))
			       (setq alist
				     (org--collect-keywords-1
				      keywords unique directory
				      (cons uri files)
				      alist))))))))))
		(keyword
		 (let ((entry (assoc keyword alist))
		       (final
			(cond ((not (member keyword directory)) value)
			      (buffer-file-name
			       (cons value
				     (file-name-directory buffer-file-name)))
			      (t (cons value default-directory)))))
		   (cond ((member keyword unique)
			  (push (cons keyword final) alist)
			  (setq keywords (remove keyword keywords))
			  (setq regexp (org-make-options-regexp keywords)))
			 ((null entry) (push (list keyword final) alist))
			 (t (push final (cdr entry)))))))))))
      alist)))

(defun org-tag-string-to-alist (s)
  "Return tag alist associated to string S.
S is a value for TAGS keyword or produced with
`org-tag-alist-to-string'.  Return value is an alist suitable for
`org-tag-alist' or `org-tag-persistent-alist'."
  (let ((lines (mapcar #'split-string (split-string s "\n" t)))
	(tag-re (concat "\\`\\(" org-tag-re "\\|{.+?}\\)" ; regular expression
			"\\(?:(\\(.\\))\\)?\\'"))
	alist group-flag)
    (dolist (tokens lines (cdr (nreverse alist)))
      (push '(:newline) alist)
      (while tokens
	(let ((token (pop tokens)))
	  (pcase token
	    ("{"
	     (push '(:startgroup) alist)
	     (when (equal (nth 1 tokens) ":") (setq group-flag t)))
	    ("}"
	     (push '(:endgroup) alist)
	     (setq group-flag nil))
	    ("["
	     (push '(:startgrouptag) alist)
	     (when (equal (nth 1 tokens) ":") (setq group-flag t)))
	    ("]"
	     (push '(:endgrouptag) alist)
	     (setq group-flag nil))
	    (":"
	     (push '(:grouptags) alist))
	    ((guard (string-match tag-re token))
	     (let ((tag (match-string 1 token))
		   (key (and (match-beginning 2)
			     (string-to-char (match-string 2 token)))))
	       ;; Push all tags in groups, no matter if they already
	       ;; appear somewhere else in the list.
	       (when (or group-flag (not (assoc tag alist)))
		 (push (cons tag key) alist))))))))))

(defun org-tag-alist-to-string (alist &optional skip-key)
  "Return tag string associated to ALIST.

ALIST is an alist, as defined in `org-tag-alist' or
`org-tag-persistent-alist', or produced with
`org-tag-string-to-alist'.

Return value is a string suitable as a value for \"TAGS\"
keyword.

When optional argument SKIP-KEY is non-nil, skip selection keys
next to tags."
  (mapconcat (lambda (token)
	       (pcase token
		 (`(:startgroup) "{")
		 (`(:endgroup) "}")
		 (`(:startgrouptag) "[")
		 (`(:endgrouptag) "]")
		 (`(:grouptags) ":")
		 (`(:newline) "\\n")
		 ((and
		   (guard (not skip-key))
		   `(,(and tag (pred stringp)) . ,(and key (pred characterp))))
		  (format "%s(%c)" tag key))
		 (`(,(and tag (pred stringp)) . ,_) tag)
		 (_ (user-error "Invalid tag token: %S" token))))
	     alist
	     " "))

(defun org-tag-alist-to-groups (alist)
  "Return group alist from tag ALIST.
ALIST is an alist, as defined in `org-tag-alist' or
`org-tag-persistent-alist', or produced with
`org-tag-string-to-alist'.  Return value is an alist following
the pattern (GROUP-TAG TAGS) where GROUP-TAG is the tag, as
a string, summarizing TAGS, as a list of strings."
  (let (groups group-status current-group)
    (dolist (token alist (nreverse groups))
      (pcase token
	(`(,(or :startgroup :startgrouptag)) (setq group-status t))
	(`(,(or :endgroup :endgrouptag))
	 (when (eq group-status 'append)
	   (push (nreverse current-group) groups))
	 (setq group-status nil current-group nil))
	(`(:grouptags) (setq group-status 'append))
	((and `(,tag . ,_) (guard group-status))
	 (if (eq group-status 'append) (push tag current-group)
	   (setq current-group (list tag))))
	(_ nil)))))

(defvar org--file-cache (make-hash-table :test #'equal)
  "Hash table to store contents of files referenced via a URL.
This is the cache of file URLs read using `org-file-contents'.")

(defun org-reset-file-cache ()
  "Reset the cache of files downloaded by `org-file-contents'."
  (clrhash org--file-cache))

(defun org-file-contents (file &optional noerror nocache)
  "Return the contents of FILE, as a string.

FILE can be a file name or URL.

If FILE is a URL, download the contents.  If the URL contents are
already cached in the `org--file-cache' hash table, the download step
is skipped.

If NOERROR is non-nil, ignore the error when unable to read the FILE
from file or URL, and return nil.

If NOCACHE is non-nil, do a fresh fetch of FILE even if cached version
is available.  This option applies only if FILE is a URL."
  (let* ((is-url (org-url-p file))
         (cache (and is-url
                     (not nocache)
                     (gethash file org--file-cache))))
    (cond
     (cache)
     (is-url
      (if (org--should-fetch-remote-resource-p file)
          (condition-case error
              (with-current-buffer (url-retrieve-synchronously file)
                (goto-char (point-min))
                ;; Move point to after the url-retrieve header.
                (search-forward "\n\n" nil :move)
                ;; Search for the success code only in the url-retrieve header.
                (if (save-excursion
                      (re-search-backward "HTTP.*\\s-+200\\s-OK" nil :noerror))
                    ;; Update the cache `org--file-cache' and return contents.
                    (puthash file
                             (buffer-substring-no-properties (point) (point-max))
                             org--file-cache)
                  (funcall (if noerror #'message #'user-error)
                           "Unable to fetch file from %S"
                           file)
                  nil))
            (error (if noerror
                       (message "Org couldn't download \"%s\": %s %S" file (car error) (cdr error))
                     (signal (car error) (cdr error)))))
        (funcall (if noerror #'message #'user-error)
                 "The remote resource %S is considered unsafe, and will not be downloaded."
                 file)))
     (t
      (with-temp-buffer
        (condition-case nil
	    (progn
	      (insert-file-contents file)
	      (buffer-string))
	  (file-error
           (funcall (if noerror #'message #'user-error)
		    "Unable to read file %S"
		    file)
	   nil)))))))

(defun org--should-fetch-remote-resource-p (uri)
  "Return non-nil if the URI should be fetched."
  (or (eq org-resource-download-policy t)
      (org--safe-remote-resource-p uri)
      (and (eq org-resource-download-policy 'prompt)
           (org--confirm-resource-safe uri))))

(defun org--safe-remote-resource-p (uri)
  "Return non-nil if URI is considered safe.
This checks every pattern in `org-safe-remote-resources', and
returns non-nil if any of them match."
  (let ((uri-patterns org-safe-remote-resources)
        (file-uri (and (buffer-file-name (buffer-base-buffer))
                       (concat "file://" (file-truename (buffer-file-name (buffer-base-buffer))))))
        match-p)
    (while (and (not match-p) uri-patterns)
      (setq match-p (or (string-match-p (car uri-patterns) uri)
                        (and file-uri (string-match-p (car uri-patterns) file-uri)))
            uri-patterns (cdr uri-patterns)))
    match-p))

(defun org--confirm-resource-safe (uri)
  "Ask the user if URI should be considered safe, returning non-nil if so."
  (unless noninteractive
    (let ((current-file (and (buffer-file-name (buffer-base-buffer))
                             (file-truename (buffer-file-name (buffer-base-buffer)))))
          (domain (and (string-match
                        (rx (seq "http" (? "s") "://")
                            (optional (+ (not (any "@/\n"))) "@")
                            (optional "www.")
                            (one-or-more (not (any ":/?\n"))))
                        uri)
                       (match-string 0 uri)))
          (buf (get-buffer-create "*Org Remote Resource*")))
      ;; Set up the contents of the *Org Remote Resource* buffer.
      (with-current-buffer buf
        (erase-buffer)
        (insert "An org-mode document would like to download "
                (propertize uri 'face '(:inherit org-link :weight normal))
                ", which is not considered safe.\n\n"
                "Do you want to download this?  You can type\n "
                (propertize "!" 'face 'success)
                " to download this resource, and permanently mark it as safe.\n "
                (if domain
                    (concat
                     (propertize "d" 'face 'success)
                     " to download this resource, and mark the domain ("
                     (propertize domain 'face '(:inherit org-link :weight normal))
                     ") as safe.\n ")
                  "")
                (propertize "f" 'face 'success)
                (if current-file
                    (concat
                     " to download this resource, and permanently mark all resources in "
                     (propertize current-file 'face 'underline)
                     " as safe.\n ")
                  "")
                (propertize "y" 'face 'warning)
                " to download this resource, just this once.\n "
                (propertize "n" 'face 'error)
                " to skip this resource.\n")
        (setq-local cursor-type nil)
        (set-buffer-modified-p nil)
        (goto-char (point-min)))
      ;; Display the buffer and read a choice.
      (save-window-excursion
        (pop-to-buffer buf)
        (let* ((exit-chars (append '(?y ?n ?! ?d ?\s) (and current-file '(?f))))
               (prompt (format "Please type y, n%s, d, or !%s: "
                               (if current-file ", f" "")
                               (if (< (line-number-at-pos (point-max))
                                      (window-body-height))
                                   ""
                                 ", or C-v/M-v to scroll")))
               char)
          (setq char (read-char-choice prompt exit-chars))
          (when (memq char '(?! ?f ?d))
            (customize-push-and-save
             'org-safe-remote-resources
             (list (if (eq char ?d)
                       (concat "\\`" (regexp-quote domain) "\\(?:/\\|\\'\\)")
                     (concat "\\`"
                             (regexp-quote
                              (if (and (= char ?f) current-file)
                                  (concat "file://" current-file) uri))
                             "\\'")))))
          (prog1 (memq char '(?y ?! ?d ?\s ?f))
            (quit-window t)))))))

(defun org-extract-log-state-settings (x)
  "Extract the log state setting from a TODO keyword string.
This will extract info from a string like \"WAIT(w@/!)\"."
  (when (string-match "^\\(.*?\\)\\(?:(\\([^!@/]\\)?\\([!@]\\)?\\(?:/\\([!@]\\)\\)?)\\)?$" x)
    (let ((kw (match-string 1 x))
	  (log1 (and (match-end 3) (match-string 3 x)))
	  (log2 (and (match-end 4) (match-string 4 x))))
      (and (or log1 log2)
	   (list kw
		 (and log1 (if (equal log1 "!") 'time 'note))
		 (and log2 (if (equal log2 "!") 'time 'note)))))))

(defun org-remove-keyword-keys (list)
  "Remove a pair of parenthesis at the end of each string in LIST."
  (mapcar (lambda (x)
	    (if (string-match "(.*)$" x)
		(substring x 0 (match-beginning 0))
	      x))
	  list))

(defun org-assign-fast-keys (alist)
  "Assign fast keys to a keyword-key alist.
Respect keys that are already there."
  (let (new e (alt ?0))
    (while (setq e (pop alist))
      (if (or (memq (car e) '(:newline :grouptags :endgroup :startgroup))
	      (cdr e)) ;; Key already assigned.
	  (push e new)
	(let ((clist (string-to-list (downcase (car e))))
	      (used (append new alist)))
	  (when (= (car clist) ?@)
	    (pop clist))
	  (while (and clist (rassoc (car clist) used))
	    (pop clist))
	  (unless clist
	    (while (rassoc alt used)
	      (cl-incf alt)))
	  (push (cons (car e) (or (car clist) alt)) new))))
    (nreverse new)))

;;; Some variables used in various places

(defvar org-window-configuration nil
  "Used in various places to store a window configuration.")
(defvar org-selected-window nil
  "Used in various places to store a window configuration.")
(defvar org-finish-function nil
  "Function to be called when `C-c C-c' is used.
This is for getting out of special buffers like capture.")
(defvar org-last-state)

;; Defined somewhere in this file, but used before definition.
(defvar org-entities)     ;; defined in org-entities.el
(defvar org-struct-menu)
(defvar org-org-menu)
(defvar org-tbl-menu)

;;;; Define the Org mode

(defun org-before-change-function (_beg _end)
  "Every change indicates that a table might need an update."
  (setq org-table-may-need-update t))
(defvar org-mode-map)
(defvar org-inhibit-startup-visibility-stuff nil) ; Dynamically-scoped param.
(defvar org-agenda-keep-modes nil)      ; Dynamically-scoped param.
(defvar org-inhibit-logging nil)        ; Dynamically-scoped param.
(defvar org-inhibit-blocking nil)       ; Dynamically-scoped param.

(defvar bidi-paragraph-direction)
(defvar buffer-face-mode-face)

(require 'outline)

;; Other stuff we need.
(require 'time-date)
(when (< emacs-major-version 28)  ; preloaded in Emacs 28
  (require 'easymenu))

(require 'org-entities)
(require 'org-faces)
(require 'org-list)
(require 'org-pcomplete)
(require 'org-src)
(require 'org-footnote)
(require 'org-macro)

;; babel
(require 'ob)

(defvar org-element-cache-version); Defined in org-element.el
(defvar org-element-cache-persistent); Defined in org-element.el
(defvar org-element-use-cache); Defined in org-element.el
(defvar org-mode-loading nil
  "Non-nil during Org mode initialization.")

(defvar org-agenda-file-menu-enabled t
  "When non-nil, refresh Agenda files in Org menu when loading Org.")

(defvar org-mode-syntax-table
  (let ((st (make-syntax-table outline-mode-syntax-table)))
    (modify-syntax-entry ?\" "\"" st)
    (modify-syntax-entry ?\\ "_" st)
    (modify-syntax-entry ?~ "_" st)
    (modify-syntax-entry ?< "(>" st)
    (modify-syntax-entry ?> ")<" st)
    st)
  "Standard syntax table for Org mode buffers.")

(defvar org-mode-tags-syntax-table
  (let ((st (make-syntax-table org-mode-syntax-table)))
    (modify-syntax-entry ?@ "w" st)
    (modify-syntax-entry ?_ "w" st)
    st)
  "Syntax table including \"@\" and \"_\" as word constituents.")

;;;###autoload
(define-derived-mode org-mode outline-mode "Org"
  "Outline-based notes management and organizer, alias
\"Carsten's outline-mode for keeping track of everything.\"

Org mode develops organizational tasks around a NOTES file which
contains information about projects as plain text.  Org mode is
implemented on top of Outline mode, which is ideal to keep the content
of large files well structured.  It supports ToDo items, deadlines and
time stamps, which magically appear in the diary listing of the Emacs
calendar.  Tables are easily created with a built-in table editor.
Plain text URL-like links connect to websites, emails (VM), Usenet
messages (Gnus), BBDB entries, and any files related to the project.
For printing and sharing of notes, an Org file (or a part of it)
can be exported as a structured ASCII or HTML file.

The following commands are available:

\\{org-mode-map}"
  (setq-local org-mode-loading t)
  ;; Force tab width - indentation is significant in lists, so we need
  ;; to make sure that it is consistent across configurations.
  (setq-local tab-width 8)
  (org-load-modules-maybe)
  (when org-agenda-file-menu-enabled
    (org-install-agenda-files-menu))
  (setq-local outline-regexp org-outline-regexp)
  (setq-local outline-level 'org-outline-level)
  ;; Initialize cache.
  (org-element-cache-reset)
  (when (and org-element-cache-persistent
             org-element-use-cache)
    (org-persist-load
     `((elisp org-element--cache) (version ,org-element-cache-version))
     (current-buffer)
     'match-hash :read-related t))
  (org-set-regexps-and-options)
  (when (and org-link-descriptive
             (eq org-fold-core-style 'overlays))
    (add-to-invisibility-spec '(org-link)))
  (org-fold-initialize (or (and (stringp org-ellipsis) (not (equal "" org-ellipsis)) org-ellipsis)
                           "..."))
  (make-local-variable 'org-link-descriptive)
  (when (eq org-fold-core-style 'overlays) (add-to-invisibility-spec '(org-hide-block . t)))
  (if org-link-descriptive
      (org-fold-core-set-folding-spec-property (car org-link--link-folding-spec) :visible nil)
    (org-fold-core-set-folding-spec-property (car org-link--link-folding-spec) :visible t))
  (when (and (stringp org-ellipsis) (not (equal "" org-ellipsis)))
    (unless org-display-table
      (setq org-display-table (make-display-table)))
    (set-display-table-slot
     org-display-table 4
     (vconcat (mapcar (lambda (c) (make-glyph-code c 'org-ellipsis))
		      org-ellipsis)))
    (setq buffer-display-table org-display-table))
  (org-set-font-lock-defaults)
  (when (and org-tag-faces (not org-tags-special-faces-re))
    ;; tag faces set outside customize.... force initialization.
    (org-set-tag-faces 'org-tag-faces org-tag-faces))
  ;; Calc embedded
  (setq-local calc-embedded-open-mode "# ")
  ;; Set syntax table.  Ensure that buffer-local changes to the syntax
  ;; table do not affect other Org buffers.
  (set-syntax-table (make-syntax-table org-mode-syntax-table))
  (setq-local font-lock-unfontify-region-function 'org-unfontify-region)
  ;; Activate before-change-function
  (setq-local org-table-may-need-update t)
  (add-hook 'before-change-functions 'org-before-change-function nil 'local)
  ;; Check for running clock before killing a buffer
  (add-hook 'kill-buffer-hook 'org-check-running-clock nil 'local)
  ;; Check for invisible edits.
  (org-fold--advice-edit-commands)
  ;; Initialize macros templates.
  (org-macro-initialize-templates)
  ;; Initialize radio targets.
  (org-update-radio-target-regexp)
  ;; Indentation.
  (setq-local indent-line-function 'org-indent-line)
  (setq-local indent-region-function 'org-indent-region)
  ;; Filling and auto-filling.
  (org-setup-filling)
  ;; Comments.
  (org-setup-comments-handling)
  ;; Beginning/end of defun
  (setq-local beginning-of-defun-function 'org-backward-element)
  (setq-local end-of-defun-function
	      (lambda ()
		(if (not (org-at-heading-p))
		    (org-forward-element)
		  (org-forward-element)
		  (forward-char -1))))
  ;; Next error for sparse trees
  (setq-local next-error-function 'org-occur-next-match)
  ;; Make commit log messages from Org documents easier.
  (setq-local add-log-current-defun-function #'org-add-log-current-headline)
  ;; Make sure dependence stuff works reliably, even for users who set it
  ;; too late :-(
  (if org-enforce-todo-dependencies
      (add-hook 'org-blocker-hook
		'org-block-todo-from-children-or-siblings-or-parent)
    (remove-hook 'org-blocker-hook
		 'org-block-todo-from-children-or-siblings-or-parent))
  (if org-enforce-todo-checkbox-dependencies
      (add-hook 'org-blocker-hook
		'org-block-todo-from-checkboxes)
    (remove-hook 'org-blocker-hook
		 'org-block-todo-from-checkboxes))

  ;; Align options lines
  (setq-local
   align-mode-rules-list
   '((org-in-buffer-settings
      (regexp . "^[ \t]*#\\+[A-Z_]+:\\(\\s-*\\)\\S-+")
      (modes . '(org-mode)))))

  ;; Setup the pcomplete hooks
  (setq-local pcomplete-command-completion-function #'org-pcomplete-initial)
  (setq-local pcomplete-command-name-function #'org-command-at-point)
  (setq-local pcomplete-default-completion-function #'ignore)
  (setq-local pcomplete-parse-arguments-function #'org-parse-arguments)
  (setq-local pcomplete-termination-string "")
  (add-hook 'completion-at-point-functions
            #'pcomplete-completions-at-point nil t)
  (setq-local buffer-face-mode-face 'org-default)

  ;; If empty file that did not turn on Org mode automatically, make
  ;; it to.
  (when (and org-insert-mode-line-in-empty-file
	     (called-interactively-p 'any)
	     (= (point-min) (point-max)))
    (insert "#    -*- mode: org -*-\n\n"))
  (unless org-inhibit-startup
    (when (or org-startup-align-all-tables org-startup-shrink-all-tables)
      (org-table-map-tables
       (cond ((and org-startup-align-all-tables
		   org-startup-shrink-all-tables)
	      (lambda () (org-table-align) (org-table-shrink)))
	     (org-startup-align-all-tables #'org-table-align)
	     (t #'org-table-shrink))
       t))
    ;; Suppress modification hooks to speed up the startup.
    ;; However, do it only when text properties/overlays, but not
    ;; buffer text are actually modified.  We still need to track text
    ;; modifications to make cache updates work reliably.
    (org-unmodified
     (when org-startup-with-beamer-mode (org-beamer-mode))
     (when org-startup-with-inline-images (org-display-inline-images))
     (when org-startup-with-latex-preview (org-latex-preview '(16)))
     (unless org-inhibit-startup-visibility-stuff (org-cycle-set-startup-visibility))
     (when org-startup-truncated (setq truncate-lines t))
     (when org-startup-numerated (require 'org-num) (org-num-mode 1))
     (when org-startup-indented (require 'org-indent) (org-indent-mode 1))))

  ;; Add a custom keymap for `visual-line-mode' so that activating
  ;; this minor mode does not override Org's keybindings.
  ;; FIXME: Probably `visual-line-mode' should take care of this.
  (let ((oldmap (cdr (assoc 'visual-line-mode minor-mode-map-alist)))
        (newmap (make-sparse-keymap)))
    (set-keymap-parent newmap oldmap)
    (define-key newmap [remap move-beginning-of-line] nil)
    (define-key newmap [remap move-end-of-line] nil)
    (define-key newmap [remap kill-line] nil)
    (make-local-variable 'minor-mode-overriding-map-alist)
    (push `(visual-line-mode . ,newmap) minor-mode-overriding-map-alist))

  ;; Activate `org-table-header-line-mode'
  (when org-table-header-line-p
    (org-table-header-line-mode 1))
  ;; Try to set `org-hide' face correctly.
  (let ((foreground (org-find-invisible-foreground)))
    (when foreground
      (set-face-foreground 'org-hide foreground)))
  ;; Set face extension as requested.
  (org--set-faces-extend '(org-block-begin-line org-block-end-line)
                         org-fontify-whole-block-delimiter-line)
  (org--set-faces-extend org-level-faces org-fontify-whole-heading-line)
  (setq-local org-mode-loading nil)

  ;; `yank-media' handler and DND support.
  (org-setup-yank-dnd-handlers))

;; Update `customize-package-emacs-version-alist'
(add-to-list 'customize-package-emacs-version-alist
	     '(Org ("8.0" . "24.4")
		   ("8.1" . "24.4")
		   ("8.2" . "24.4")
		   ("8.2.7" . "24.4")
		   ("8.3" . "26.1")
		   ("9.0" . "26.1")
		   ("9.1" . "26.1")
		   ("9.2" . "27.1")
		   ("9.3" . "27.1")
		   ("9.4" . "27.2")
		   ("9.5" . "28.1")
		   ("9.6" . "29.1")))

(defvar org-mode-transpose-word-syntax-table
  (let ((st (make-syntax-table text-mode-syntax-table)))
    (dolist (c org-emphasis-alist st)
      (modify-syntax-entry (string-to-char (car c)) "w p" st))))

(when (fboundp 'abbrev-table-put)
  (abbrev-table-put org-mode-abbrev-table
		    :parents (list text-mode-abbrev-table)))

(defun org-find-invisible-foreground ()
  (let ((candidates (remove
		     "unspecified-bg"
		     (nconc
		      (list (face-background 'default)
			    (face-background 'org-default))
		      (mapcar
		       (lambda (alist)
			 (when (boundp alist)
			   (cdr (assq 'background-color (symbol-value alist)))))
		       '(default-frame-alist initial-frame-alist window-system-default-frame-alist))
		      (list (face-foreground 'org-hide))))))
    (car (remove nil candidates))))

(defun org-current-time (&optional rounding-minutes past)
  "Current time, possibly rounded to ROUNDING-MINUTES.
When ROUNDING-MINUTES is not an integer, fall back on the car of
`org-timestamp-rounding-minutes'.  When PAST is non-nil, ensure
the rounding returns a past time."
  (let ((r (or (and (integerp rounding-minutes) rounding-minutes)
	       (car org-timestamp-rounding-minutes)))
	(now (current-time)))
    (if (< r 1)
	now
      (let* ((time (decode-time now))
	     (res (org-encode-time
                   (apply #'list
                          0 (* r (round (nth 1 time) r))
                          (nthcdr 2 time)))))
	(if (or (not past) (time-less-p res now))
	    res
	  (time-subtract res (* r 60)))))))

(defun org-today ()
  "Return today date, considering `org-extend-today-until'."
  (time-to-days
   (time-since (* 3600 org-extend-today-until))))

;;;; Font-Lock stuff, including the activators

(defconst org-match-sexp-depth 3
  "Number of stacked braces for sub/superscript matching.")

(defun org-create-multibrace-regexp (left right n)
  "Create a regular expression which will match a balanced sexp.
Opening delimiter is LEFT, and closing delimiter is RIGHT, both given
as single character strings.
The regexp returned will match the entire expression including the
delimiters.  It will also define a single group which contains the
match except for the outermost delimiters.  The maximum depth of
stacked delimiters is N.  Escaping delimiters is not possible."
  (let* ((nothing (concat "[^" left right "]*?"))
	 (or "\\|")
	 (re nothing)
	 (next (concat "\\(?:" nothing left nothing right "\\)+" nothing)))
    (while (> n 1)
      (setq n (1- n)
	    re (concat re or next)
	    next (concat "\\(?:" nothing left next right "\\)+" nothing)))
    (concat left "\\(" re "\\)" right)))

(defconst org-match-substring-regexp
  (concat
   "\\(\\S-\\)\\([_^]\\)\\("
   "\\(?:" (org-create-multibrace-regexp "{" "}" org-match-sexp-depth) "\\)"
   "\\|"
   "\\(?:" (org-create-multibrace-regexp "(" ")" org-match-sexp-depth) "\\)"
   "\\|"
   "\\(?:\\*\\|[+-]?[[:alnum:].,\\]*[[:alnum:]]\\)\\)")
  "The regular expression matching a sub- or superscript.")

(defconst org-match-substring-with-braces-regexp
  (concat
   "\\(\\S-\\)\\([_^]\\)"
   "\\(" (org-create-multibrace-regexp "{" "}" org-match-sexp-depth) "\\)")
  "The regular expression matching a sub- or superscript, forcing braces.")

(defvar org-emph-face nil)

(defconst org-nonsticky-props
  '(mouse-face highlight keymap invisible intangible help-echo org-linked-text htmlize-link))

(defsubst org-rear-nonsticky-at (pos)
  (add-text-properties (1- pos) pos (list 'rear-nonsticky org-nonsticky-props)))

(defun org-do-emphasis-faces (limit)
  "Run through the buffer and emphasize strings."
  (let ((quick-re (format "\\([%s]\\|^\\)\\([~=*/_+]\\)"
			  (car org-emphasis-regexp-components))))
    (catch :exit
      (while (re-search-forward quick-re limit t)
	(let* ((marker (match-string 2))
	       (verbatim? (member marker '("~" "="))))
	  (when (save-excursion
		  (goto-char (match-beginning 0))
		  (and
		   ;; Do not match table hlines.
		   (not (and (equal marker "+")
			     (org-match-line
			      "[ \t]*\\(|[-+]+|?\\|\\+[-+]+\\+\\)[ \t]*$")))
		   ;; Do not match headline stars.  Do not consider
		   ;; stars of a headline as closing marker for bold
		   ;; markup either.
		   (not (and (equal marker "*")
			     (save-excursion
			       (forward-char)
			       (skip-chars-backward "*")
			       (looking-at-p org-outline-regexp-bol))))
		   ;; Match full emphasis markup regexp.
		   (looking-at (if verbatim? org-verbatim-re org-emph-re))
		   ;; Do not span over paragraph boundaries.
		   (not (string-match-p org-element-paragraph-separate
					(match-string 2)))
		   ;; Do not span over cells in table rows.
		   (not (and (save-match-data (org-match-line "[ \t]*|"))
			     (string-match-p "|" (match-string 4))))))
	    (pcase-let ((`(,_ ,face ,_) (assoc marker org-emphasis-alist))
			(m (if org-hide-emphasis-markers 4 2)))
	      (font-lock-prepend-text-property
	       (match-beginning m) (match-end m) 'face face)
	      (when verbatim?
		(org-remove-flyspell-overlays-in
		 (match-beginning 0) (match-end 0))
                (when (and (org-fold-core-folding-spec-p 'org-link)
                           (org-fold-core-folding-spec-p 'org-link-description))
                  (org-fold-region (match-beginning 0) (match-end 0) nil 'org-link)
                  (org-fold-region (match-beginning 0) (match-end 0) nil 'org-link-description))
		(remove-text-properties (match-beginning 2) (match-end 2)
					'(display t invisible t intangible t)))
	      (add-text-properties (match-beginning 2) (match-end 2)
				   '(font-lock-multiline t org-emphasis t))
	      (when (and org-hide-emphasis-markers
			 (not (org-at-comment-p)))
		(add-text-properties (match-end 4) (match-beginning 5)
				     '(invisible t))
                ;; https://orgmode.org/list/8b691a7f-6b62-d573-e5a8-80fac3dc9bc6@vodafonemail.de
                (org-rear-nonsticky-at (match-beginning 5))
		(add-text-properties (match-beginning 3) (match-end 3)
				     '(invisible t))
                ;; FIXME: This would break current behavior with point
                ;; being adjusted before hidden emphasis marker when
                ;; using M-b.  A proper fix would require custom
                ;; syntax function that will mark emphasis markers as
                ;; word constituents where appropriate.
                ;; https://orgmode.org/list/87edl41jf0.fsf@localhost
                ;; (org-rear-nonsticky-at (match-end 3))
                )
	      (throw :exit t))))))))

(defun org-emphasize (&optional char)
  "Insert or change an emphasis, i.e. a font like bold or italic.
If there is an active region, change that region to a new emphasis.
If there is no region, just insert the marker characters and position
the cursor between them.
CHAR should be the marker character.  If it is a space, it means to
remove the emphasis of the selected region.
If CHAR is not given (for example in an interactive call) it will be
prompted for."
  (interactive)
  (let ((erc org-emphasis-regexp-components)
	(string "") beg end move s)
    (if (org-region-active-p)
	(setq beg (region-beginning)
	      end (region-end)
	      string (buffer-substring beg end))
      (setq move t))

    (unless char
      (message "Emphasis marker or tag: [%s]"
	       (mapconcat #'car org-emphasis-alist ""))
      (setq char (read-char-exclusive)))
    (if (equal char ?\s)
	(setq s ""
	      move nil)
      (unless (assoc (char-to-string char) org-emphasis-alist)
	(user-error "No such emphasis marker: \"%c\"" char))
      (setq s (char-to-string char)))
    (while (and (> (length string) 1)
		(equal (substring string 0 1) (substring string -1))
		(assoc (substring string 0 1) org-emphasis-alist))
      (setq string (substring string 1 -1)))
    (setq string (concat s string s))
    (when beg (delete-region beg end))
    (unless (or (bolp)
		(string-match (concat "[" (nth 0 erc) "\n]")
			      (char-to-string (char-before (point)))))
      (insert " "))
    (unless (or (eobp)
		(string-match (concat "[" (nth 1 erc) "\n]")
			      (char-to-string (char-after (point)))))
      (insert " ") (backward-char 1))
    (insert string)
    (and move (backward-char 1))))

(defun org-activate-links--overlays (limit)
  "Add link properties to links.
This includes angle, plain, and bracket links."
  (catch :exit
    (while (re-search-forward org-link-any-re limit t)
      (let* ((start (match-beginning 0))
	     (end (match-end 0))
	     (visible-start (or (match-beginning 3) (match-beginning 2)))
	     (visible-end (or (match-end 3) (match-end 2)))
	     (style (cond ((eq ?< (char-after start)) 'angle)
			  ((eq ?\[ (char-after (1+ start))) 'bracket)
			  (t 'plain))))
	(when (and (memq style org-highlight-links)
		   ;; Do not span over paragraph boundaries.
		   (not (string-match-p org-element-paragraph-separate
				      (match-string 0)))
		   ;; Do not confuse plain links with tags.
		   (not (and (eq style 'plain)
			   (let ((face (get-text-property
					(max (1- start) (point-min)) 'face)))
			     (if (consp face) (memq 'org-tag face)
			       (eq 'org-tag face))))))
	  (let* ((link-object (save-excursion
				(goto-char start)
				(save-match-data (org-element-link-parser))))
		 (link (org-element-property :raw-link link-object))
		 (type (org-element-property :type link-object))
		 (path (org-element-property :path link-object))
                 (face-property (pcase (org-link-get-parameter type :face)
				  ((and (pred functionp) face) (funcall face path))
				  ((and (pred facep) face) face)
				  ((and (pred consp) face) face) ;anonymous
				  (_ 'org-link)))
		 (properties		;for link's visible part
		  (list 'mouse-face (or (org-link-get-parameter type :mouse-face)
					'highlight)
			'keymap (or (org-link-get-parameter type :keymap)
				    org-mouse-map)
			'help-echo (pcase (org-link-get-parameter type :help-echo)
				     ((and (pred stringp) echo) echo)
				     ((and (pred functionp) echo) echo)
				     (_ (concat "LINK: " link)))
			'htmlize-link (pcase (org-link-get-parameter type
								     :htmlize-link)
					((and (pred functionp) f) (funcall f))
					(_ `(:uri ,link)))
			'font-lock-multiline t)))
	    (org-remove-flyspell-overlays-in start end)
	    (org-rear-nonsticky-at end)
	    (if (not (eq 'bracket style))
		(progn
                  (add-face-text-property start end face-property)
		  (add-text-properties start end properties))
	      ;; Handle invisible parts in bracket links.
	      (remove-text-properties start end '(invisible nil))
	      (let ((hidden
		     (append `(invisible
			       ,(or (org-link-get-parameter type :display)
				    'org-link))
			     properties)))
		(add-text-properties start visible-start hidden)
                (add-face-text-property start end face-property)
		(add-text-properties visible-start visible-end properties)
		(add-text-properties visible-end end hidden)
		(org-rear-nonsticky-at visible-start)
		(org-rear-nonsticky-at visible-end)))
	    (let ((f (org-link-get-parameter type :activate-func)))
	      (when (functionp f)
		(funcall f start end path (eq style 'bracket))))
	    (throw :exit t)))))		;signal success
    nil))
(defun org-activate-links--text-properties (limit)
  "Add link properties to links.
This includes angle, plain, and bracket links."
  (catch :exit
    (while (re-search-forward org-link-any-re limit t)
      (let* ((start (match-beginning 0))
	     (end (match-end 0))
	     (visible-start (or (match-beginning 3) (match-beginning 2)))
	     (visible-end (or (match-end 3) (match-end 2)))
	     (style (cond ((eq ?< (char-after start)) 'angle)
			  ((eq ?\[ (char-after (1+ start))) 'bracket)
			  (t 'plain))))
	(when (and (memq style org-highlight-links)
		   ;; Do not span over paragraph boundaries.
		   (not (string-match-p org-element-paragraph-separate
					(match-string 0)))
		   ;; Do not confuse plain links with tags.
		   (not (and (eq style 'plain)
			     (let ((face (get-text-property
					  (max (1- start) (point-min)) 'face)))
			       (if (consp face) (memq 'org-tag face)
				 (eq 'org-tag face))))))
	  (let* ((link-object (save-excursion
				(goto-char start)
				(save-match-data (org-element-link-parser))))
		 (link (org-element-property :raw-link link-object))
		 (type (org-element-property :type link-object))
		 (path (org-element-property :path link-object))
                 (face-property (pcase (org-link-get-parameter type :face)
				  ((and (pred functionp) face) (funcall face path))
				  ((and (pred facep) face) face)
				  ((and (pred consp) face) face) ;anonymous
				  (_ 'org-link)))
		 (properties		;for link's visible part
		  (list 'mouse-face (or (org-link-get-parameter type :mouse-face)
					'highlight)
			'keymap (or (org-link-get-parameter type :keymap)
				    org-mouse-map)
			'help-echo (pcase (org-link-get-parameter type :help-echo)
				     ((and (pred stringp) echo) echo)
				     ((and (pred functionp) echo) echo)
				     (_ (concat "LINK: " link)))
			'htmlize-link (pcase (org-link-get-parameter type
								  :htmlize-link)
					((and (pred functionp) f) (funcall f))
					(_ `(:uri ,link)))
			'font-lock-multiline t)))
	    (org-remove-flyspell-overlays-in start end)
	    (org-rear-nonsticky-at end)
	    (if (not (eq 'bracket style))
		(progn
                  (add-face-text-property start end face-property)
		  (add-text-properties start end properties))
              ;; Initialize folding when used outside org-mode.
              (unless (or (derived-mode-p 'org-mode)
			  (and (org-fold-folding-spec-p 'org-link-description)
                               (org-fold-folding-spec-p 'org-link)))
                (org-fold-initialize (or (and (stringp org-ellipsis) (not (equal "" org-ellipsis)) org-ellipsis)
                                      "...")))
	      ;; Handle invisible parts in bracket links.
	      (let ((spec (or (org-link-get-parameter type :display)
			      'org-link)))
                (unless (org-fold-folding-spec-p spec)
                  (org-fold-add-folding-spec spec
                                          (cdr org-link--link-folding-spec)
                                          nil
                                          'append)
                  (org-fold-core-set-folding-spec-property spec :visible t))
                (org-fold-region start end nil 'org-link)
                (org-fold-region start end nil 'org-link-description)
                ;; We are folding the whole emphasized text with SPEC
                ;; first.  It makes everything invisible (or whatever
                ;; the user wants).
                (org-fold-region start end t spec)
                ;; The visible part of the text is folded using
                ;; 'org-link-description, which is forcing this part of
                ;; the text to be visible.
                (org-fold-region visible-start visible-end t 'org-link-description)
		(add-text-properties start end properties)
                (add-face-text-property start end face-property)
		(org-rear-nonsticky-at visible-start)
		(org-rear-nonsticky-at visible-end)))
	    (let ((f (org-link-get-parameter type :activate-func)))
	      (when (functionp f)
		(funcall f start end path (eq style 'bracket))))
	    (throw :exit t)))))		;signal success
    nil))
(defsubst org-activate-links (limit)
  "Add link properties to links.
This includes angle, plain, and bracket links."
  (if (eq org-fold-core-style 'text-properties)
      (org-activate-links--text-properties limit)
    (org-activate-links--overlays limit)))

(defun org-activate-code (limit)
  (when (re-search-forward "^[ \t]*\\(:\\(?: .*\\|$\\)\n?\\)" limit t)
    (org-remove-flyspell-overlays-in (match-beginning 0) (match-end 0))
    (remove-text-properties (match-beginning 0) (match-end 0)
			    '(display t invisible t intangible t))
    t))

(defcustom org-src-fontify-natively t
  "When non-nil, fontify code in code blocks.
See also the `org-block' face."
  :type 'boolean
  :version "26.1"
  :package-version '(Org . "8.3")
  :group 'org-appearance
  :group 'org-babel)

(defcustom org-allow-promoting-top-level-subtree nil
  "When non-nil, allow promoting a top level subtree.
The leading star of the top level headline will be replaced
by a #."
  :type 'boolean
  :version "24.1"
  :group 'org-appearance)

(defun org-fontify-meta-lines-and-blocks (limit)
  (condition-case-unless-debug nil
      (org-fontify-meta-lines-and-blocks-1 limit)
    (error (message "Org mode fontification error in %S at %d"
		    (current-buffer)
		    (line-number-at-pos)))))

(defun org-fontify-meta-lines-and-blocks-1 (limit)
  "Fontify #+ lines and blocks."
  (let ((case-fold-search t))
    (when (re-search-forward
	   (rx bol (group (zero-or-more (any " \t")) "#"
			  (group (group (or (seq "+" (one-or-more (any "a-zA-Z")) (optional ":"))
					    (any " \t")
					    eol))
				 (optional (group "_" (group (one-or-more (any "a-zA-Z"))))))
			  (zero-or-more (any " \t"))
			  (group (group (zero-or-more (not (any " \t\n"))))
				 (zero-or-more (any " \t"))
				 (group (zero-or-more any)))))
	   limit t)
      (let ((beg (match-beginning 0))
	    (end-of-beginline (match-end 0))
	    ;; Including \n at end of #+begin line will include \n
	    ;; after the end of block content.
	    (block-start (match-end 0))
	    (block-end nil)
	    (lang (match-string 7)) ; The language, if it is a source block.
	    (bol-after-beginline (line-beginning-position 2))
	    (dc1 (downcase (match-string 2)))
	    (dc3 (downcase (match-string 3)))
	    (whole-blockline org-fontify-whole-block-delimiter-line)
	    beg-of-endline end-of-endline nl-before-endline quoting block-type)
	(cond
	 ((and (match-end 4) (equal dc3 "+begin"))
	  ;; Truly a block
	  (setq block-type (downcase (match-string 5))
		;; Src, example, export, maybe more.
		quoting (member block-type org-protecting-blocks))
	  (when (re-search-forward
		 (rx-to-string `(group bol (or (seq (one-or-more "*") space)
					       (seq (zero-or-more (any " \t"))
						    "#+end"
						    ,(match-string 4)
						    word-end
						    (zero-or-more any)))))
		 ;; We look further than LIMIT on purpose.
		 nil t)
	    ;; We do have a matching #+end line.
	    (setq beg-of-endline (match-beginning 0)
		  end-of-endline (match-end 0)
		  nl-before-endline (1- (match-beginning 0)))
	    (setq block-end (match-beginning 0)) ; Include the final newline.
	    (when quoting
	      (org-remove-flyspell-overlays-in bol-after-beginline nl-before-endline)
	      (remove-text-properties beg end-of-endline
				      '(display t invisible t intangible t)))
	    (add-text-properties
	     beg end-of-endline '(font-lock-fontified t font-lock-multiline t))
	    (org-remove-flyspell-overlays-in beg bol-after-beginline)
	    (org-remove-flyspell-overlays-in nl-before-endline end-of-endline)
            (cond
	     ((and org-src-fontify-natively
                   ;; Technically, according to
                   ;; `org-src-fontify-natively' docstring, we should
                   ;; only fontify src blocks.  However, it is common
                   ;; to use undocumented fontification of example
                   ;; blocks with undocumented language specifier.
                   ;; Keep this undocumented feature for user
                   ;; convenience.
                   t
                   ;; (string= block-type "src")
                   )
	      (save-match-data
                (org-src-font-lock-fontify-block (or lang "") block-start block-end))
	      (add-text-properties bol-after-beginline block-end '(src-block t)))
	     (quoting
	      (add-text-properties
	       bol-after-beginline beg-of-endline
	       (list 'face
		     (list :inherit
			   (let ((face-name
				  (intern (format "org-block-%s" lang))))
			     (append (and (facep face-name) (list face-name))
				     '(org-block)))))))
	     ((not org-fontify-quote-and-verse-blocks))
	     ((string= block-type "quote")
	      (add-face-text-property
	       bol-after-beginline beg-of-endline 'org-quote t))
	     ((string= block-type "verse")
	      (add-face-text-property
	       bol-after-beginline beg-of-endline 'org-verse t)))
	    ;; Fontify the #+begin and #+end lines of the blocks
	    (add-text-properties
	     beg (if whole-blockline bol-after-beginline end-of-beginline)
	     '(face org-block-begin-line))
	    (unless (eq (char-after beg-of-endline) ?*)
	      (add-text-properties
	       beg-of-endline
	       (if whole-blockline
		   (let ((beg-of-next-line (1+ end-of-endline)))
		     (min (point-max) beg-of-next-line))
		 (min (point-max) end-of-endline))
	       '(face org-block-end-line)))
	    t))
	 ((member dc1 '("+title:" "+subtitle:" "+author:" "+email:" "+date:"))
	  (org-remove-flyspell-overlays-in
	   (match-beginning 0)
	   (if (equal "+title:" dc1) (match-end 2) (match-end 0)))
	  (add-text-properties
	   beg (match-end 3)
	   (if (member (intern (substring dc1 1 -1)) org-hidden-keywords)
	       '(font-lock-fontified t invisible t)
	     '(font-lock-fontified t face org-document-info-keyword)))
	  (add-text-properties
	   (match-beginning 6) (min (point-max) (1+ (match-end 6)))
	   (if (string-equal dc1 "+title:")
	       '(font-lock-fontified t face org-document-title)
	     '(font-lock-fontified t face org-document-info))))
	 ((string-prefix-p "+caption" dc1)
	  (org-remove-flyspell-overlays-in (match-end 2) (match-end 0))
	  (remove-text-properties (match-beginning 0) (match-end 0)
				  '(display t invisible t intangible t))
	  ;; Handle short captions
	  (save-excursion
	    (forward-line 0)
	    (looking-at (rx (group (zero-or-more (any " \t"))
				   "#+caption"
				   (optional "[" (zero-or-more any) "]")
				   ":")
			    (zero-or-more (any " \t")))))
	  (add-text-properties (line-beginning-position) (match-end 1)
			       '(font-lock-fontified t face org-meta-line))
	  (add-text-properties (match-end 0) (line-end-position)
			       '(font-lock-fontified t face org-block))
	  t)
	 ((member dc3 '(" " ""))
	  ;; Just a comment, the plus was not there
	  (org-remove-flyspell-overlays-in beg (match-end 0))
	  (add-text-properties
	   beg (match-end 0)
	   '(font-lock-fontified t face font-lock-comment-face)))
	 (t ;; Just any other in-buffer setting, but not indented
	  (org-remove-flyspell-overlays-in (match-beginning 0) (match-end 0))
	  (remove-text-properties (match-beginning 0) (match-end 0)
				  '(display t invisible t intangible t))
	  (add-text-properties beg (match-end 0)
			       '(font-lock-fontified t face org-meta-line))
	  t))))))

(defun org-fontify-drawers (limit)
  "Fontify drawers."
  (when (re-search-forward org-drawer-regexp limit t)
    (add-text-properties (1- (match-beginning 1)) (1+ (match-end 1))
			 '(font-lock-fontified t face org-drawer))
    (org-remove-flyspell-overlays-in
     (line-beginning-position) (line-beginning-position 2))
    t))

(defun org-fontify-macros (limit)
  "Fontify macros."
  (when (re-search-forward "{{{\\([a-zA-Z][-a-zA-Z0-9_]*\\)" limit t)
    (let ((begin (match-beginning 0))
	  (opening-end (match-beginning 1)))
      (when (and (re-search-forward "\n[ \t]*\n\\|\\(}}}\\)" limit t)
		 (match-string 1))
	(let ((end (match-end 1))
	      (closing-start (match-beginning 1)))
	  (add-text-properties
	   begin end
	   '(font-lock-multiline t font-lock-fontified t face org-macro))
	  (org-remove-flyspell-overlays-in begin end)
	  (when org-hide-macro-markers
	    (add-text-properties begin opening-end '(invisible t))
	    (add-text-properties closing-start end '(invisible t)))
	  t)))))

(defun org-fontify-extend-region (beg end _old-len)
  (let ((end (if (progn (goto-char end) (looking-at-p "^[*#]"))
                 (min (point-max) (1+ end))
               ;; See `font-lock-extend-jit-lock-region-after-change' and bug#68849.
               (min (point-max) (1+ end))))
        (begin-re "\\(\\\\\\[\\|\\(#\\+begin_\\|\\\\begin{\\)\\S-+\\)")
	(end-re "\\(\\\\\\]\\|\\(#\\+end_\\|\\\\end{\\)\\S-+\\)")
	(extend
         (lambda (r1 r2 dir)
	   (let ((re (replace-regexp-in-string
                      "\\(begin\\|end\\)" r1
		      (replace-regexp-in-string
                       "[][]" r2
		       (match-string-no-properties 0)))))
	     (re-search-forward (regexp-quote re) nil t dir)))))
    (goto-char beg)
    (back-to-indentation)
    (save-match-data
      (cond ((looking-at end-re)
	     (cons (or (funcall extend "begin" "[" -1) beg) end))
	    ((looking-at begin-re)
	     (cons beg (or (funcall extend "end" "]" 1) end)))
	    (t (cons beg end))))))

(defun org-activate-footnote-links (limit)
  "Add text properties for footnotes."
  (let ((fn (org-footnote-next-reference-or-definition limit)))
    (when fn
      (let* ((beg (nth 1 fn))
	     (end (nth 2 fn))
	     (label (car fn))
	     (referencep (/= (line-beginning-position) beg)))
	(when (and referencep (nth 3 fn))
	  (save-excursion
	    (goto-char beg)
	    (search-forward (or label "fn:"))
	    (org-remove-flyspell-overlays-in beg (match-end 0))))
	(add-text-properties beg end
			     (list 'mouse-face 'highlight
				   'keymap org-mouse-map
				   'help-echo
				   (if referencep "Footnote reference"
				     "Footnote definition")
				   'font-lock-fontified t
				   'font-lock-multiline t
				   'face 'org-footnote))))))

(defun org-activate-dates (limit)
  "Add text properties for dates."
  (when (and (re-search-forward org-tsr-regexp-both limit t)
	     (not (equal (char-before (match-beginning 0)) 91)))
    (org-remove-flyspell-overlays-in (match-beginning 0) (match-end 0))
    (add-text-properties (match-beginning 0) (match-end 0)
			 (list 'mouse-face 'highlight
			       'keymap org-mouse-map))
    (org-rear-nonsticky-at (match-end 0))
    (when org-display-custom-times
      ;; If it's a date range, activate custom time for second date.
      (when (match-end 3)
	(org-display-custom-time (match-beginning 3) (match-end 3)))
      (org-display-custom-time (match-beginning 1) (match-end 1)))
    t))

(defun org-activate-target-links (limit)
  "Add text properties for target matches."
  (when org-target-link-regexp
    (let ((case-fold-search t))
      ;; `org-target-link-regexp' matches one character before the
      ;; actual target.
      (unless (bolp) (forward-char -1))
      (when (if org-target-link-regexps
                (org--re-list-search-forward org-target-link-regexps limit t)
              (re-search-forward org-target-link-regexp limit t))
	(org-remove-flyspell-overlays-in (match-beginning 1) (match-end 1))
	(add-text-properties (match-beginning 1) (match-end 1)
			     (list 'mouse-face 'highlight
				   'keymap org-mouse-map
				   'help-echo "Radio target link"
				   'org-linked-text t))
	(org-rear-nonsticky-at (match-end 1))
	t))))

(defvar org-latex-and-related-regexp nil
  "Regular expression for highlighting LaTeX, entities and sub/superscript.")

(defun org-compute-latex-and-related-regexp ()
  "Compute regular expression for LaTeX, entities and sub/superscript.
Result depends on variable `org-highlight-latex-and-related'."
  (let ((re-sub
	 (cond ((not (memq 'script org-highlight-latex-and-related)) nil)
	       ((eq org-use-sub-superscripts '{})
		(list org-match-substring-with-braces-regexp))
	       (org-use-sub-superscripts (list org-match-substring-regexp))))
	(re-latex
	 (when (or (memq 'latex org-highlight-latex-and-related)
		   (memq 'native org-highlight-latex-and-related))
	   (let ((matchers (plist-get org-format-latex-options :matchers)))
	     (delq nil
		   (mapcar (lambda (x)
			     (and (member (car x) matchers) (nth 1 x)))
			   org-latex-regexps)))))
	(re-entities
	 (when (memq 'entities org-highlight-latex-and-related)
	   (list "\\\\\\(there4\\|sup[123]\\|frac[13][24]\\|[a-zA-Z]+\\)\
\\($\\|{}\\|[^[:alpha:]]\\)"))))
    (setq-local org-latex-and-related-regexp
		(mapconcat #'identity
			   (append re-latex re-entities re-sub)
			   "\\|"))))

(defun org-do-latex-and-related (limit)
  "Highlight LaTeX snippets and environments, entities and sub/superscript.
Stop at first highlighted object, if any.  Return t if some
highlighting was done, nil otherwise."
  (when (org-string-nw-p org-latex-and-related-regexp)
    (let ((latex-prefix-re (rx (or "$" "\\(" "\\[")))
	  (blank-line-re (rx (and "\n" (zero-or-more (or " " "\t")) "\n"))))
      (catch 'found
	(while (and (< (point) limit)
		    (re-search-forward org-latex-and-related-regexp nil t))
	  (cond
           ((>= (match-beginning 0) limit)
	    (throw 'found nil))
	   ((cl-some (lambda (f)
		       (memq f '(org-code org-verbatim underline
					  org-special-keyword)))
		     (save-excursion
		       (goto-char (1+ (match-beginning 0)))
		       (face-at-point nil t))))
	   ;; Try to limit false positives.  In this case, ignore
	   ;; $$...$$, \(...\), and \[...\] LaTeX constructs if they
	   ;; contain an empty line.
	   ((save-excursion
	      (goto-char (match-beginning 0))
	      (and (looking-at-p latex-prefix-re)
		   (save-match-data
		     (re-search-forward blank-line-re (1- (match-end 0)) t)))))
	   (t
	    (let* ((offset (if (memq (char-after (1+ (match-beginning 0)))
				     '(?_ ?^))
			       1
			     0))
		   (start (+ offset (match-beginning 0)))
		   (end (match-end 0)))
	      (if (memq 'native org-highlight-latex-and-related)
		  (org-src-font-lock-fontify-block "latex" start end)
		(font-lock-prepend-text-property start end
						 'face 'org-latex-and-related))
	      (add-text-properties (+ offset (match-beginning 0)) (match-end 0)
				   '(font-lock-multiline t))
	      (throw 'found t)))))
	nil))))

(defun org-restart-font-lock ()
  "Restart `font-lock-mode', to force refontification."
  (when font-lock-mode
    (font-lock-mode -1)
    (font-lock-mode 1)))

(defun org-activate-tags (limit)
  (when (re-search-forward org-tag-line-re limit t)
    (org-remove-flyspell-overlays-in (match-beginning 1) (match-end 1))
    (add-text-properties (match-beginning 1) (match-end 1)
			 (list 'mouse-face 'highlight
			       'keymap org-mouse-map))
    (org-rear-nonsticky-at (match-end 1))
    t))

(defun org-activate-folds (limit)
  "Arrange trailing newlines after folds to inherit face before the fold."
  (let ((next-unfolded-newline (search-forward "\n" limit 'move)))
    (while (and next-unfolded-newline (org-fold-folded-p) (not (eobp)))
      (goto-char (org-fold-core-next-visibility-change nil limit))
      (setq next-unfolded-newline (search-forward "\n" limit 'move)))
    (when next-unfolded-newline
      (org-with-wide-buffer
       (when (and (> (match-beginning 0) (point-min))
                  (org-fold-folded-p (1- (match-beginning 0)))
                  (not (org-fold-folded-p (1- (match-beginning 0)) 'org-link)))
         (put-text-property
          (match-beginning 0) (match-end 0)
          'face
          (get-text-property
           (org-fold-previous-visibility-change
            (1- (match-beginning 0)))
           'face)))
       t))))

(defun org-outline-level ()
  "Compute the outline level of the heading at point.

If this is called at a normal headline, the level is the number
of stars.  Use `org-reduced-level' to remove the effect of
`org-odd-levels-only'.  Unlike `org-current-level', this function
takes into consideration inlinetasks."
  (org-with-wide-buffer
   (end-of-line)
   (if (re-search-backward org-outline-regexp-bol nil t)
       (1- (- (match-end 0) (match-beginning 0)))
     0)))

(defvar org-font-lock-keywords nil)

(defsubst org-re-property (property &optional literal allow-null value)
  "Return a regexp matching a PROPERTY line.

When optional argument LITERAL is non-nil, do not quote PROPERTY.
This is useful when PROPERTY is a regexp.  When ALLOW-NULL is
non-nil, match properties even without a value.

Match group 3 is set to the value when it exists.  If there is no
value and ALLOW-NULL is non-nil, it is set to the empty string.

With optional argument VALUE, match only property lines with
that value; in this case, ALLOW-NULL is ignored.  VALUE is quoted
unless LITERAL is non-nil."
  (concat
   "^\\(?4:[ \t]*\\)"
   (format "\\(?1::\\(?2:%s\\):\\)"
	   (if literal property (regexp-quote property)))
   (cond (value
	  (format "[ \t]+\\(?3:%s\\)\\(?5:[ \t]*\\)$"
		  (if literal value (regexp-quote value))))
	 (allow-null
	  "\\(?:\\(?3:$\\)\\|[ \t]+\\(?3:.*?\\)\\)\\(?5:[ \t]*\\)$")
	 (t
	  "[ \t]+\\(?3:[^ \r\t\n]+.*?\\)\\(?5:[ \t]*\\)$"))))

(defconst org-property-re
  (org-re-property "\\S-+" 'literal t)
  "Regular expression matching a property line.
There are four matching groups:
1: :PROPKEY: including the leading and trailing colon,
2: PROPKEY without the leading and trailing colon,
3: PROPVAL without leading or trailing spaces,
4: the indentation of the current line,
5: trailing whitespace.")

(defvar org-font-lock-hook nil
  "Functions to be called for special font lock stuff.")

(defvar org-font-lock-extra-keywords nil) ;Dynamically scoped.

(defvar org-font-lock-set-keywords-hook nil
  "Functions that can manipulate `org-font-lock-extra-keywords'.
This is called after `org-font-lock-extra-keywords' is defined, but before
it is installed to be used by font lock.  This can be useful if something
needs to be inserted at a specific position in the font-lock sequence.")

(defun org-font-lock-hook (limit)
  "Run `org-font-lock-hook' within LIMIT."
  (run-hook-with-args 'org-font-lock-hook limit))

(defun org-set-font-lock-defaults ()
  "Set font lock defaults for the current buffer."
  (let ((org-font-lock-extra-keywords
	 (list
	  ;; Call the hook
	  '(org-font-lock-hook)
	  ;; Headlines
	  `(,(if org-fontify-whole-heading-line
		 "^\\(\\**\\)\\(\\* \\)\\(.*\n?\\)"
	       "^\\(\\**\\)\\(\\* \\)\\(.*\\)")
	    (1 (org-get-level-face 1))
	    (2 (org-get-level-face 2))
	    (3 (org-get-level-face 3)))
	  ;; Table lines
	  '("^[ \t]*\\(\\(|\\|\\+-[-+]\\).*\\S-\\)\n?"
            (0 'org-table-row t)
	    (1 'org-table t))
	  ;; Table internals
	  '("^[ \t]*|\\(?:.*?|\\)? *\\(:?=[^|\n]*\\)" (1 'org-formula t))
	  '("^[ \t]*| *\\([#*]\\) *|" (1 'org-formula t))
	  '("^[ \t]*|\\( *\\([$!_^/]\\) *|.*\\)|" (1 'org-formula t))
	  '("| *\\(<[lrc]?[0-9]*>\\)" (1 'org-formula t))
	  ;; Properties
	  (list org-property-re
		'(1 'org-special-keyword t)
		'(3 'org-property-value t))
	  ;; Drawers
	  '(org-fontify-drawers)
	  ;; Link related fontification.
	  '(org-activate-links)
	  (when (memq 'tag org-highlight-links) '(org-activate-tags (1 'org-tag prepend)))
	  (when (memq 'radio org-highlight-links) '(org-activate-target-links (1 'org-link t)))
	  (when (memq 'date org-highlight-links) '(org-activate-dates (0 'org-date t)))
	  (when (memq 'footnote org-highlight-links) '(org-activate-footnote-links))
          ;; Targets.
          (list org-radio-target-regexp '(0 'org-target t))
	  (list org-target-regexp '(0 'org-target t))
	  ;; Diary sexps.
	  '("^&?%%(.*\\|<%%([^>\n]*?>" (0 'org-sexp-date t))
	  ;; Macro
	  '(org-fontify-macros)
	  ;; TODO keyword
	  (list (format org-heading-keyword-regexp-format
			org-todo-regexp)
		'(2 (org-get-todo-face 2) prepend))
	  ;; TODO
	  (when org-fontify-todo-headline
	    (list (format org-heading-keyword-regexp-format
			  (concat
			   "\\(?:"
			   (mapconcat 'regexp-quote org-not-done-keywords "\\|")
			   "\\)"))
		  '(2 'org-headline-todo prepend)))
	  ;; DONE
	  (when org-fontify-done-headline
	    (list (format org-heading-keyword-regexp-format
			  (concat
			   "\\(?:"
			   (mapconcat 'regexp-quote org-done-keywords "\\|")
			   "\\)"))
		  '(2 'org-headline-done prepend)))
	  ;; Priorities
	  '(org-font-lock-add-priority-faces)
	  ;; Tags
	  '(org-font-lock-add-tag-faces)
	  ;; Tags groups
	  (when (and org-group-tags org-tag-groups-alist)
	    (list (concat org-outline-regexp-bol ".+\\(:"
			  (regexp-opt (mapcar 'car org-tag-groups-alist))
			  ":\\).*$")
		  '(1 'org-tag-group prepend)))
	  ;; Special keywords
	  (list (concat "\\<" org-deadline-string) '(0 'org-special-keyword t))
	  (list (concat "\\<" org-scheduled-string) '(0 'org-special-keyword t))
	  (list (concat "\\<" org-closed-string) '(0 'org-special-keyword t))
	  (list (concat "\\<" org-clock-string) '(0 'org-special-keyword t))
	  ;; Emphasis
	  (when org-fontify-emphasized-text '(org-do-emphasis-faces))
	  ;; Checkboxes
	  `(,org-list-full-item-re 3 'org-checkbox prepend lax)
	  (when (cdr (assq 'checkbox org-list-automatic-rules))
	    '("\\[\\([0-9]*%\\)\\]\\|\\[\\([0-9]*\\)/\\([0-9]*\\)\\]"
	      (0 (org-get-checkbox-statistics-face) prepend)))
	  ;; Description list items
          '("\\(?:^[ \t]*[-+]\\|^[ \t]+[*]\\)[ \t]+\\(.*?[ \t]+::\\)\\([ \t]+\\|$\\)"
	    1 'org-list-dt prepend)
          ;; Inline export snippets
          '("\\(@@\\)\\([a-z-]+:\\).*?\\(@@\\)"
            (1 'font-lock-comment-face t)
            (2 'org-tag t)
            (3 'font-lock-comment-face t))
	  ;; ARCHIVEd headings
	  (list (concat
		 org-outline-regexp-bol
		 "\\(.*:" org-archive-tag ":.*\\)")
		'(1 'org-archived prepend))
	  ;; Specials
	  '(org-do-latex-and-related)
	  '(org-fontify-entities)
	  '(org-raise-scripts)
	  ;; Code
	  '(org-activate-code (1 'org-code t))
	  ;; COMMENT
	  (list (format
		 "^\\*+\\(?: +%s\\)?\\(?: +\\[#[A-Z0-9]\\]\\)? +\\(?9:%s\\)\\(?: \\|$\\)"
		 org-todo-regexp
		 org-comment-string)
		'(9 'org-special-keyword t))
	  ;; Blocks and meta lines
	  '(org-fontify-meta-lines-and-blocks)
          '(org-fontify-inline-src-blocks)
          ;; Citations.  When an activate processor is specified, if
          ;; specified, try loading it beforehand.
          (progn
            (unless (null org-cite-activate-processor)
              (org-cite-try-load-processor org-cite-activate-processor))
            '(org-cite-activate))
          '(org-activate-folds))))
    (setq org-font-lock-extra-keywords (delq nil org-font-lock-extra-keywords))
    (run-hooks 'org-font-lock-set-keywords-hook)
    ;; Now set the full font-lock-keywords
    (setq-local org-font-lock-keywords org-font-lock-extra-keywords)
    (setq-local font-lock-defaults
		'(org-font-lock-keywords t nil nil backward-paragraph))
    (setq-local font-lock-extend-after-change-region-function
		#'org-fontify-extend-region)
    (kill-local-variable 'font-lock-keywords)
    nil))

(defun org-toggle-pretty-entities ()
  "Toggle the composition display of entities as UTF8 characters."
  (interactive)
  (setq-local org-pretty-entities (not org-pretty-entities))
  (org-restart-font-lock)
  (if org-pretty-entities
      (message "Entities are now displayed as UTF8 characters")
    (save-restriction
      (widen)
      (decompose-region (point-min) (point-max))
      (message "Entities are now displayed as plain text"))))

(defvar-local org-custom-properties-overlays nil
  "List of overlays used for custom properties.")
;; Preserve when switching modes or when restarting Org.
(put 'org-custom-properties-overlays 'permanent-local t)

(defun org-toggle-custom-properties-visibility ()
  "Display or hide properties in `org-custom-properties'."
  (interactive)
  (if org-custom-properties-overlays
      (progn (mapc #'delete-overlay org-custom-properties-overlays)
	     (setq org-custom-properties-overlays nil))
    (when org-custom-properties
      (org-with-wide-buffer
       (goto-char (point-min))
       (let ((regexp (org-re-property (regexp-opt org-custom-properties) t t)))
	 (while (re-search-forward regexp nil t)
	   (let ((end (cdr (save-match-data (org-get-property-block)))))
	     (when (and end (< (point) end))
	       ;; Hide first custom property in current drawer.
	       (let ((o (make-overlay (match-beginning 0) (1+ (match-end 0)))))
		 (overlay-put o 'invisible t)
		 (overlay-put o 'org-custom-property t)
		 (push o org-custom-properties-overlays))
	       ;; Hide additional custom properties in the same drawer.
	       (while (re-search-forward regexp end t)
		 (let ((o (make-overlay (match-beginning 0) (1+ (match-end 0)))))
		   (overlay-put o 'invisible t)
		   (overlay-put o 'org-custom-property t)
		   (push o org-custom-properties-overlays)))))
	   ;; Each entry is limited to a single property drawer.
	   (outline-next-heading)))))))

(defun org-fontify-entities (limit)
  "Find an entity to fontify."
  (let (ee)
    (when org-pretty-entities
      (catch 'match
	;; "\_ "-family is left out on purpose.  Only the first one,
	;; i.e., "\_ ", could be fontified anyway, and it would be
	;; confusing when adding a second white space character.
	(while (re-search-forward
		"\\\\\\(there4\\|sup[123]\\|frac[13][24]\\|[a-zA-Z]+\\)\\($\\|{}\\|[^[:alpha:]\n]\\)"
		limit t)
	  (when (and (not (org-at-comment-p))
		     (setq ee (org-entity-get (match-string 1)))
		     (= (length (nth 6 ee)) 1))
	    (let* ((end (if (equal (match-string 2) "{}")
			    (match-end 2)
			  (match-end 1))))
	      (add-text-properties
	       (match-beginning 0) end
	       (list 'font-lock-fontified t))
	      (compose-region (match-beginning 0) end
			      (nth 6 ee) nil)
	      (backward-char 1)
	      (throw 'match t))))
	nil))))

(defun org-fontify-like-in-org-mode (s &optional odd-levels)
  "Fontify string S like in Org mode."
  (with-temp-buffer
    (insert s)
    (let ((org-odd-levels-only odd-levels))
      (org-mode)
      (font-lock-ensure)
      (if org-link-descriptive
          (org-link-display-format
           (buffer-string))
        (buffer-string)))))

(defun org-get-level-face (n)
  "Get the right face for match N in font-lock matching of headlines."
  (let* ((org-l0 (- (match-end 2) (match-beginning 1) 1))
	 (org-l (if org-odd-levels-only (1+ (/ org-l0 2)) org-l0))
	 (org-f (if org-cycle-level-faces
		    (nth (% (1- org-l) org-n-level-faces) org-level-faces)
		  (nth (1- (min org-l org-n-level-faces)) org-level-faces))))
    (cond
     ((eq n 1) (if org-hide-leading-stars 'org-hide org-f))
     ((eq n 2) org-f)
     (t (unless org-level-color-stars-only org-f)))))

(defun org-face-from-face-or-color (context inherit face-or-color)
  "Create a face list that inherits INHERIT, but sets the foreground color.
When FACE-OR-COLOR is not a string, just return it."
  (if (stringp face-or-color)
      (list :inherit inherit
	    (cdr (assoc context org-faces-easy-properties))
	    face-or-color)
    face-or-color))

(defun org-get-todo-face (kwd)
  "Get the right face for a TODO keyword KWD.
If KWD is a number, get the corresponding match group."
  (when (numberp kwd) (setq kwd (match-string kwd)))
  (or (org-face-from-face-or-color
       'todo 'org-todo (cdr (assoc kwd org-todo-keyword-faces)))
      (and (member kwd org-done-keywords) 'org-done)
      'org-todo))

(defun org-get-priority-face (priority)
  "Get the right face for PRIORITY.
PRIORITY is a character."
  (or (org-face-from-face-or-color
       'priority 'org-priority (cdr (assq priority org-priority-faces)))
      'org-priority))

(defun org-get-tag-face (tag)
  "Get the right face for TAG.
If TAG is a number, get the corresponding match group."
  (let ((tag (if (wholenump tag) (match-string tag) tag)))
    (or (org-face-from-face-or-color
	 'tag 'org-tag (cdr (assoc tag org-tag-faces)))
	'org-tag)))

(defvar org-priority-regexp) ; defined later in the file

(defun org-font-lock-add-priority-faces (limit)
  "Add the special priority faces."
  (while (re-search-forward (concat "^\\*+" org-priority-regexp) limit t)
    (let ((beg (match-beginning 1))
	  (end (1+ (match-end 2))))
      (add-face-text-property
       beg end
       (org-get-priority-face (string-to-char (match-string 2))))
      (add-text-properties
       beg end
       (list 'font-lock-fontified t)))))

(defun org-font-lock-add-tag-faces (limit)
  "Add the special tag faces."
  (when (and org-tag-faces org-tags-special-faces-re)
    (while (re-search-forward org-tags-special-faces-re limit t)
      (add-face-text-property
       (match-beginning 1)
       (match-end 1)
       (org-get-tag-face 1))
      (add-text-properties (match-beginning 1) (match-end 1)
			   (list 'font-lock-fontified t))
      (backward-char 1))))

(defun org-unfontify-region (beg end &optional _maybe_loudly)
  "Remove fontification and activation overlays from links."
  (font-lock-default-unfontify-region beg end)
  (with-silent-modifications
    (decompose-region beg end)
    (remove-text-properties beg end
			    '(mouse-face t keymap t org-linked-text t
					 invisible t intangible t
					 org-emphasis t))
    (org-fold-region beg end nil 'org-link)
    (org-fold-region beg end nil 'org-link-description)
    (org-fold-core-update-optimisation beg end)
    (org-remove-font-lock-display-properties beg end)))

(defconst org-script-display  '(((raise -0.3) (height 0.7))
				((raise 0.3)  (height 0.7))
				((raise -0.5))
				((raise 0.5)))
  "Display properties for showing superscripts and subscripts.")

(defun org-remove-font-lock-display-properties (beg end)
  "Remove specific display properties that have been added by font lock.
The will remove the raise properties that are used to show superscripts
and subscripts."
  (let (next prop)
    (while (< beg end)
      (setq next (next-single-property-change beg 'display nil end)
	    prop (get-text-property beg 'display))
      (when (member prop org-script-display)
	(put-text-property beg next 'display nil))
      (setq beg next))))

(defun org-raise-scripts (limit)
  "Add raise properties to sub/superscripts."
  (when (and org-pretty-entities org-pretty-entities-include-sub-superscripts
	     (re-search-forward
	      (if (eq org-use-sub-superscripts t)
		  org-match-substring-regexp
		org-match-substring-with-braces-regexp)
	      limit t))
    (let* ((pos (point)) table-p comment-p
	   (mpos (match-beginning 3))
	   (emph-p (get-text-property mpos 'org-emphasis))
	   (link-p (get-text-property mpos 'mouse-face))
	   (keyw-p (eq 'org-special-keyword (get-text-property mpos 'face))))
      (goto-char (line-beginning-position))
      (setq table-p (looking-at-p org-table-dataline-regexp)
	    comment-p (looking-at-p "^[ \t]*#[ +]"))
      (goto-char pos)
      ;; Handle a_b^c
      (when (member (char-after) '(?_ ?^)) (goto-char (1- pos)))
      (unless (or comment-p emph-p link-p keyw-p)
	(put-text-property (match-beginning 3) (match-end 0)
			   'display
			   (if (equal (char-after (match-beginning 2)) ?^)
			       (nth (if table-p 3 1) org-script-display)
			     (nth (if table-p 2 0) org-script-display)))
        (put-text-property (match-beginning 2) (match-end 3)
                           'org-emphasis t)
	(add-text-properties (match-beginning 2) (match-end 2)
			     (list 'invisible t))
	(when (and (eq (char-after (match-beginning 3)) ?{)
		   (eq (char-before (match-end 3)) ?}))
	  (add-text-properties (match-beginning 3) (1+ (match-beginning 3))
			       (list 'invisible t))
	  (add-text-properties (1- (match-end 3)) (match-end 3)
			       (list 'invisible t))))
      t)))

(defun org-remove-empty-overlays-at (pos)
  "Remove outline overlays that do not contain non-white stuff."
  (dolist (o (overlays-at pos))
    (and (eq 'outline (overlay-get o 'invisible))
	 (not (string-match-p
               "\\S-" (buffer-substring (overlay-start o)
					(overlay-end o))))
	 (delete-overlay o))))

;; FIXME: This function is unused.
(defun org-show-empty-lines-in-parent ()
  "Move to the parent and re-show empty lines before visible headlines."
  (save-excursion
    (let ((context (if (org-up-heading-safe) 'children 'overview)))
      (org-cycle-show-empty-lines context))))

(defun org-files-list ()
  "Return `org-agenda-files' list, plus all open Org files.
This is useful for operations that need to scan all of a user's
open and agenda-wise Org files."
  (let ((files (mapcar #'expand-file-name (org-agenda-files))))
    (dolist (buf (buffer-list))
      (with-current-buffer buf
	(when (and (derived-mode-p 'org-mode) (buffer-file-name))
	  (cl-pushnew (expand-file-name (buffer-file-name)) files
		      :test #'equal))))
    files))

(defsubst org-entry-beginning-position ()
  "Return the beginning position of the current entry."
  (save-excursion (org-back-to-heading t) (point)))

(defsubst org-entry-end-position ()
  "Return the end position of the current entry."
  (save-excursion (outline-next-heading) (point)))

(defun org-subtree-end-visible-p ()
  "Is the end of the current subtree visible?"
  (pos-visible-in-window-p
   (save-excursion (org-end-of-subtree t) (point))))

(defun org-first-headline-recenter ()
  "Move cursor to the first headline and recenter the headline."
  (let ((window (get-buffer-window)))
    (when window
      (goto-char (point-min))
      (when (re-search-forward (concat "^\\(" org-outline-regexp "\\)") nil t)
	(set-window-start window (line-beginning-position))))))

\f

;; FIXME: It was in the middle of visibility section. Where should it go to?
(defvar org-called-with-limited-levels nil
  "Non-nil when `org-with-limited-levels' is currently active.")

\f
;;; Indirect buffer display of subtrees

(defvar org-indirect-dedicated-frame nil
  "This is the frame being used for indirect tree display.")
(defvar org-last-indirect-buffer nil)

(defun org-tree-to-indirect-buffer (&optional arg)
  "Create indirect buffer and narrow it to current subtree.

With a numerical prefix ARG, go up to this level and then take that tree.
If ARG is negative, go up that many levels.

If `org-indirect-buffer-display' is not `new-frame', the command removes the
indirect buffer previously made with this command, to avoid proliferation of
indirect buffers.  However, when you call the command with a \
`\\[universal-argument]' prefix, or
when `org-indirect-buffer-display' is `new-frame', the last buffer is kept
so that you can work with several indirect buffers at the same time.  If
`org-indirect-buffer-display' is `dedicated-frame', the \
`\\[universal-argument]' prefix also
requests that a new frame be made for the new buffer, so that the dedicated
frame is not changed."
  (interactive "P")
  (let ((cbuf (current-buffer))
	(cwin (selected-window))
	(pos (point))
	beg end level heading ibuf)
    (save-excursion
      (org-back-to-heading t)
      (when (numberp arg)
	(setq level (org-outline-level))
	(when (< arg 0) (setq arg (+ level arg)))
	(while (> (setq level (org-outline-level)) arg)
	  (org-up-heading-safe)))
      (setq beg (point)
	    heading (org-get-heading 'no-tags))
      (org-end-of-subtree t t)
      (when (and (not (eobp)) (org-at-heading-p)) (backward-char 1))
      (setq end (point)))
    (when (and (buffer-live-p org-last-indirect-buffer)
	       (not (eq org-indirect-buffer-display 'new-frame))
	       (not arg))
      (kill-buffer org-last-indirect-buffer))
    (setq ibuf (org-get-indirect-buffer cbuf heading)
	  org-last-indirect-buffer ibuf)
    (cond
     ((or (eq org-indirect-buffer-display 'new-frame)
	  (and arg (eq org-indirect-buffer-display 'dedicated-frame)))
      (select-frame (make-frame))
      (delete-other-windows)
      (pop-to-buffer-same-window ibuf)
      (org-set-frame-title heading))
     ((eq org-indirect-buffer-display 'dedicated-frame)
      (raise-frame
       (select-frame (or (and org-indirect-dedicated-frame
			      (frame-live-p org-indirect-dedicated-frame)
			      org-indirect-dedicated-frame)
			 (setq org-indirect-dedicated-frame (make-frame)))))
      (delete-other-windows)
      (pop-to-buffer-same-window ibuf)
      (org-set-frame-title (concat "Indirect: " heading)))
     ((eq org-indirect-buffer-display 'current-window)
      (pop-to-buffer-same-window ibuf))
     ((eq org-indirect-buffer-display 'other-window)
      (pop-to-buffer ibuf))
     (t (error "Invalid value")))
    (narrow-to-region beg end)
    (org-fold-show-all '(headings drawers blocks))
    (goto-char pos)
    (run-hook-with-args 'org-cycle-hook 'all)
    (and (window-live-p cwin) (select-window cwin))))

(cl-defun org-get-indirect-buffer (&optional (buffer (current-buffer)) heading)
  "Return an indirect buffer based on BUFFER.
If HEADING, append it to the name of the new buffer."
  (let* ((base-buffer (or (buffer-base-buffer buffer) buffer))
         (buffer-name (generate-new-buffer-name
                       (format "%s%s"
                               (buffer-name base-buffer)
                               (if heading
                                   (concat "::" heading)
                                 ""))))
         (indirect-buffer (make-indirect-buffer base-buffer buffer-name 'clone)))
    ;; Decouple folding state.  We need to do it manually since
    ;; `make-indirect-buffer' does not run
    ;; `clone-indirect-buffer-hook'.
    (org-fold-core-decouple-indirect-buffer-folds)
    indirect-buffer))

(defun org-set-frame-title (title)
  "Set the title of the current frame to the string TITLE."
  (modify-frame-parameters (selected-frame) (list (cons 'name title))))

;;;; Structure editing

;;; Inserting headlines

(defun org--blank-before-heading-p (&optional parent)
  "Non-nil when an empty line should precede a new heading here.
When optional argument PARENT is non-nil, consider parent
headline instead of current one."
  (pcase (assq 'heading org-blank-before-new-entry)
    (`(heading . auto)
     (save-excursion
       (org-with-limited-levels
        (unless (and (org-before-first-heading-p)
                     (not (outline-next-heading)))
          (org-back-to-heading t)
          (when parent (org-up-heading-safe))
          (cond ((not (bobp))
                 (org-previous-line-empty-p))
		((outline-next-heading)
		 (org-previous-line-empty-p))
		;; Ignore trailing spaces on last buffer line.
		((progn (skip-chars-backward " \t") (bolp))
		 (org-previous-line-empty-p))
		(t nil))))))
    (`(heading . ,value) value)
    (_ nil)))

(defun org-insert-heading (&optional arg invisible-ok level)
  "Insert a new heading or an item with the same depth at point.

If point is at the beginning of a heading, insert a new heading
or a new headline above the current one.  When at the beginning
of a regular line of text, turn it into a heading.

If point is in the middle of a line, split it and create a new
headline with the text in the current line after point (see
`org-M-RET-may-split-line' on how to modify this behavior).  As
a special case, on a headline, splitting can only happen on the
title itself.  E.g., this excludes breaking stars or tags.

With a `\\[universal-argument]' prefix, set \
`org-insert-heading-respect-content' to
a non-nil value for the duration of the command.  This forces the
insertion of a heading after the current subtree, independently
on the location of point.

With a `\\[universal-argument] \\[universal-argument]' prefix, \
insert the heading at the end of the tree
above the current heading.  For example, if point is within a
2nd-level heading, then it will insert a 2nd-level heading at
the end of the 1st-level parent subtree.

When INVISIBLE-OK is set, stop at invisible headlines when going
back.  This is important for non-interactive uses of the
command.

When optional argument LEVEL is a number, insert a heading at
that level.  For backwards compatibility, when LEVEL is non-nil
but not a number, insert a level-1 heading."
  (interactive "P")
  (let* ((blank? (org--blank-before-heading-p (equal arg '(16))))
         (current-level (org-current-level))
         (num-stars (or
                     ;; Backwards compat: if LEVEL non-nil, level is 1
                     (and level (if (wholenump level) level 1))
                     current-level
                     ;; This `1' is for when before first headline
                     1))
         (stars (make-string num-stars ?*)))
    (cond
     ((or org-insert-heading-respect-content
	  (member arg '((4) (16)))
	  (and (not invisible-ok)
	       (invisible-p (max (1- (point)) (point-min)))))
      ;; Position point at the location of insertion.  Make sure we
      ;; end up on a visible headline if INVISIBLE-OK is nil.
      (org-with-limited-levels
       (if (not current-level) (outline-next-heading) ;before first headline
	 (org-back-to-heading invisible-ok)
	 (when (equal arg '(16)) (org-up-heading-safe))
	 (org-end-of-subtree invisible-ok 'to-heading)))
      ;; At `point-max', if the file does not have ending newline,
      ;; create one, so that we are not appending stars at non-empty
      ;; line.
      (unless (bolp) (insert "\n"))
      (when (and blank? (save-excursion
                          (backward-char)
                          (org-before-first-heading-p)))
        (insert "\n")
        (backward-char))
      (when (and (not current-level) (not (eobp)) (not (bobp)))
        (when (org-at-heading-p) (insert "\n"))
        (backward-char))
      (unless (and blank? (org-previous-line-empty-p))
	(org-N-empty-lines-before-current (if blank? 1 0)))
      (insert stars " " "\n")
      ;; Move point after stars.
      (backward-char)
      ;; When INVISIBLE-OK is non-nil, ensure newly created headline
      ;; is visible.
      (unless invisible-ok
        (if (eq org-fold-core-style 'text-properties)
	    (cond
	     ((org-fold-folded-p
               (max (point-min)
                    (1- (line-beginning-position)))
               'headline)
	      (org-fold-region (line-end-position 0) (line-end-position) nil 'headline))
	     (t nil))
          (pcase (get-char-property-and-overlay (point) 'invisible)
	    (`(outline . ,o)
	     (move-overlay o (overlay-start o) (line-end-position 0)))
	    (_ nil)))))
     ;; At a headline...
     ((org-at-heading-p)
      (cond ((bolp)
	     (when blank? (save-excursion (insert "\n")))
	     (save-excursion (insert stars " \n"))
	     (unless (and blank? (org-previous-line-empty-p))
	       (org-N-empty-lines-before-current (if blank? 1 0)))
	     (end-of-line))
	    ((and (org-get-alist-option org-M-RET-may-split-line 'headline)
		  (org-match-line org-complex-heading-regexp)
		  (org-pos-in-match-range (point) 4))
	     ;; Grab the text that should moved to the new headline.
	     ;; Preserve tags.
	     (let ((split (delete-and-extract-region (point) (match-end 4))))
	       (if (looking-at "[ \t]*$") (replace-match "")
		 (org-align-tags))
	       (end-of-line)
	       (when blank? (insert "\n"))
	       (insert "\n" stars " ")
	       (when (org-string-nw-p split) (insert split))))
	    (t
	     (end-of-line)
	     (when blank? (insert "\n"))
	     (insert "\n" stars " "))))
     ;; On regular text, turn line into a headline or split, if
     ;; appropriate.
     ((bolp)
      (insert stars " ")
      (unless (and blank? (org-previous-line-empty-p))
        (org-N-empty-lines-before-current (if blank? 1 0))))
     (t
      (unless (org-get-alist-option org-M-RET-may-split-line 'headline)
        (end-of-line))
      (insert "\n" stars " ")
      (unless (and blank? (org-previous-line-empty-p))
        (org-N-empty-lines-before-current (if blank? 1 0))))))
  (run-hooks 'org-insert-heading-hook))

(defun org-N-empty-lines-before-current (n)
  "Make the number of empty lines before current exactly N.
So this will delete or add empty lines."
  (let ((column (current-column)))
    (forward-line 0)
    (unless (bobp)
      (let ((start (save-excursion
		     (skip-chars-backward " \r\t\n")
		     (line-end-position))))
	(delete-region start (line-end-position 0))))
    (insert (make-string n ?\n))
    (move-to-column column)))

(defun org-get-heading (&optional no-tags no-todo no-priority no-comment)
  "Return the heading of the current entry, without the stars.
When NO-TAGS is non-nil, don't include tags.
When NO-TODO is non-nil, don't include TODO keywords.
When NO-PRIORITY is non-nil, don't include priority cookie.
When NO-COMMENT is non-nil, don't include COMMENT string.
Return nil before first heading."
  (unless (org-before-first-heading-p)
    (save-excursion
      (org-back-to-heading t)
      (let ((case-fold-search nil))
	(looking-at org-complex-heading-regexp)
        ;; When using `org-fold-core--optimise-for-huge-buffers',
        ;; returned text will be invisible.  Clear it up.
        (save-match-data
          (org-fold-core-remove-optimisation (match-beginning 0) (match-end 0)))
        (let ((todo (and (not no-todo) (match-string 2)))
	      (priority (and (not no-priority) (match-string 3)))
	      (headline (pcase (match-string 4)
			  (`nil "")
			  ((and (guard no-comment) h)
			   (replace-regexp-in-string
			    (eval-when-compile
			      (format "\\`%s[ \t]+" org-comment-string))
			    "" h))
			  (h h)))
	      (tags (and (not no-tags) (match-string 5))))
          ;; Restore cleared optimization.
          (org-fold-core-update-optimisation (match-beginning 0) (match-end 0))
	  (mapconcat #'identity
		     (delq nil (list todo priority headline tags))
		     " "))))))

(defun org-heading-components ()
  "Return the components of the current heading.
This is a list with the following elements:
- the level as an integer
- the reduced level, different if `org-odd-levels-only' is set.
- the TODO keyword, or nil
- the priority character, like ?A, or nil if no priority is given
- the headline text itself, or the tags string if no headline text
- the tags string, or nil."
  (save-excursion
    (org-back-to-heading t)
    (when (let (case-fold-search) (looking-at org-complex-heading-regexp))
      (org-fold-core-remove-optimisation (match-beginning 0) (match-end 0))
      (prog1
          (list (length (match-string 1))
	        (org-reduced-level (length (match-string 1)))
	        (match-string-no-properties 2)
	        (and (match-end 3) (aref (match-string 3) 2))
	        (match-string-no-properties 4)
	        (match-string-no-properties 5))
        (org-fold-core-update-optimisation (match-beginning 0) (match-end 0))))))

(defun org-get-entry ()
  "Get the entry text, after heading, entire subtree."
  (save-excursion
    (org-back-to-heading t)
    (filter-buffer-substring (line-beginning-position 2) (org-end-of-subtree t))))

(defun org-edit-headline (&optional heading)
  "Edit the current headline.
Set it to HEADING when provided."
  (interactive)
  (org-with-wide-buffer
   (org-back-to-heading t)
   (let ((case-fold-search nil))
     (when (looking-at org-complex-heading-regexp)
       (let* ((old (match-string-no-properties 4))
	      (new (save-match-data
		     (org-trim (or heading (read-string "Edit: " old))))))
	 (unless (equal old new)
	   (if old (replace-match new t t nil 4)
	     (goto-char (or (match-end 3) (match-end 2) (match-end 1)))
	     (insert " " new))
	   (org-align-tags)
	   (when (looking-at "[ \t]*$") (replace-match ""))))))))

(defun org-insert-heading-after-current ()
  "Insert a new heading with same level as current, after current subtree."
  (interactive)
  (org-back-to-heading)
  (org-insert-heading)
  (org-move-subtree-down)
  (end-of-line 1))

(defun org-insert-heading-respect-content (&optional invisible-ok)
  "Insert heading with `org-insert-heading-respect-content' set to t."
  (interactive)
  (org-insert-heading '(4) invisible-ok))

(defun org-insert-todo-heading-respect-content (&optional arg)
  "Call `org-insert-todo-heading', inserting after current subtree.
ARG is passed to `org-insert-todo-heading'.
This command temporarily sets `org-insert-heading-respect-content' to t."
  (interactive "P")
  (let ((org-insert-heading-respect-content t))
    (org-insert-todo-heading arg t)))

(defun org-insert-todo-heading (arg &optional force-heading)
  "Insert a new heading with the same level and TODO state as current heading.

If the heading has no TODO state, or if the state is DONE, use
the first state (TODO by default).  Also with `\\[universal-argument]'
prefix, force first state.  With a `\\[universal-argument]
\\[universal-argument]' prefix, force inserting at the end of the
parent subtree.

When called at a plain list item, insert a new item with an
unchecked check box."
  (interactive "P")
  (when (or force-heading (not (org-insert-item 'checkbox)))
    (org-insert-heading (or (and (equal arg '(16)) '(16))
			    force-heading))
    (save-excursion
      (org-forward-heading-same-level -1)
      (let ((case-fold-search nil)) (looking-at org-todo-line-regexp)))
    (let* ((new-mark-x
	    (if (or (equal arg '(4))
		    (not (match-beginning 2))
		    (member (match-string 2) org-done-keywords))
		(car org-todo-keywords-1)
	      (match-string 2)))
	   (new-mark
	    (or
	     (run-hook-with-args-until-success
	      'org-todo-get-default-hook new-mark-x nil)
	     new-mark-x)))
      (forward-line 0)
      (and (looking-at org-outline-regexp) (goto-char (match-end 0))
	   (if org-treat-insert-todo-heading-as-state-change
	       (org-todo new-mark)
	     (insert new-mark " "))))
    (when org-provide-todo-statistics
      (org-update-parent-todo-statistics))))

(defun org-insert-subheading (arg)
  "Insert a new subheading and demote it.
Works for outline headings and for plain lists alike.
The prefix argument ARG is passed to `org-insert-heading'.
Unlike `org-insert-heading', when point is at the beginning of a
heading, still insert the new sub-heading below."
  (interactive "P")
  (when (bolp) (forward-char))
  (org-insert-heading arg)
  (cond
   ((org-at-heading-p) (org-do-demote))
   ((org-at-item-p) (org-indent-item))))

(defun org-insert-todo-subheading (arg)
  "Insert a new subheading with TODO keyword or checkbox and demote it.
Works for outline headings and for plain lists alike.
The prefix argument ARG is passed to `org-insert-todo-heading'."
  (interactive "P")
  (org-insert-todo-heading arg)
  (cond
   ((org-at-heading-p) (org-do-demote))
   ((org-at-item-p) (org-indent-item))))

;;; Promotion and Demotion

(defvar org-after-demote-entry-hook nil
  "Hook run after an entry has been demoted.
The cursor will be at the beginning of the entry.
When a subtree is being demoted, the hook will be called for each node.")

(defvar org-after-promote-entry-hook nil
  "Hook run after an entry has been promoted.
The cursor will be at the beginning of the entry.
When a subtree is being promoted, the hook will be called for each node.")

(defun org-promote-subtree ()
  "Promote the entire subtree.
See also `org-promote'."
  (interactive)
  (save-excursion
    (org-back-to-heading t)
    (org-combine-change-calls (point) (save-excursion (org-end-of-subtree t))
      (org-with-limited-levels (org-map-tree 'org-promote))))
  (org-fix-position-after-promote))

(defun org-demote-subtree ()
  "Demote the entire subtree.
See `org-demote' and `org-promote'."
  (interactive)
  (save-excursion
    (org-back-to-heading t)
    (org-combine-change-calls (point) (save-excursion (org-end-of-subtree t))
      (org-with-limited-levels (org-map-tree 'org-demote))))
  (org-fix-position-after-promote))

(defun org-do-promote ()
  "Promote the current heading higher up the tree.
If the region is active in `transient-mark-mode', promote all
headings in the region."
  (interactive)
  (save-excursion
    (if (org-region-active-p)
        (let ((deactivate-mark nil))
          (org-map-region 'org-promote (region-beginning) (region-end)))
      (org-promote)))
  (org-fix-position-after-promote))

(defun org-do-demote ()
  "Demote the current heading lower down the tree.
If the region is active in `transient-mark-mode', demote all
headings in the region."
  (interactive)
  (save-excursion
    (if (org-region-active-p)
        (let ((deactivate-mark nil))
          (org-map-region 'org-demote (region-beginning) (region-end)))
      (org-demote)))
  (org-fix-position-after-promote))

(defun org-fix-position-after-promote ()
  "Fix cursor position and indentation after demoting/promoting."
  (let ((pos (point)))
    (when (save-excursion
	    (forward-line 0)
	    (let ((case-fold-search nil)) (looking-at org-todo-line-regexp))
	    (or (eq pos (match-end 1)) (eq pos (match-end 2))))
      (cond ((eobp) (insert " "))
	    ((eolp) (insert " "))
	    ((equal (char-after) ?\s) (forward-char 1))))))

(defun org-current-level ()
  "Return the level of the current entry, or nil if before the first headline.
The level is the number of stars at the beginning of the
headline.  Use `org-reduced-level' to remove the effect of
`org-odd-levels-only'.  Unlike `org-outline-level', this function
ignores inlinetasks."
  (let ((level (org-with-limited-levels (org-outline-level))))
    (and (> level 0) level)))

(defun org-get-previous-line-level ()
  "Return the outline depth of the last headline before the current line.
Returns 0 for the first headline in the buffer, and nil if before the
first headline."
  (and (org-current-level)
       (or (and (/= (line-beginning-position) (point-min))
		(save-excursion (forward-line -1) (org-current-level)))
	   0)))

(defun org-reduced-level (l)
  "Compute the effective level of a heading.
This takes into account the setting of `org-odd-levels-only'."
  (cond
   ((zerop l) 0)
   (org-odd-levels-only (1+ (floor (/ l 2))))
   (t l)))

(defun org-level-increment ()
  "Return the number of stars that will be added or removed at a
time to headlines when structure editing, based on the value of
`org-odd-levels-only'."
  (if org-odd-levels-only 2 1))

(defun org-get-valid-level (level &optional change)
  "Rectify a level change under the influence of `org-odd-levels-only'.
LEVEL is a current level, CHANGE is by how much the level should
be modified.  Even if CHANGE is nil, LEVEL may be returned
modified because even level numbers will become the next higher
odd number.  Returns values greater than 0."
  (if org-odd-levels-only
      (cond ((or (not change) (= 0 change)) (1+ (* 2 (/ level 2))))
	    ((> change 0) (1+ (* 2 (/ (+ (1- level) (* 2 change)) 2))))
	    ((< change 0) (max 1 (1+ (* 2 (/ (+ level (* 2 change)) 2))))))
    (max 1 (+ level (or change 0)))))

(defun org-promote ()
  "Promote the current heading higher up the tree."
  (org-with-wide-buffer
   (org-back-to-heading t)
   (let* ((after-change-functions (remq 'flyspell-after-change-function
					after-change-functions))
	  (level (save-match-data (funcall outline-level)))
	  (up-head (concat (make-string (org-get-valid-level level -1) ?*) " "))
	  (diff (abs (- level (length up-head) -1))))
     (cond
      ((and (= level 1) org-allow-promoting-top-level-subtree)
       (replace-match "# " nil t))
      ((= level 1)
       (user-error "Cannot promote to level 0.  UNDO to recover if necessary"))
      (t (replace-match (apply #'propertize up-head (text-properties-at (match-beginning 0))) t)))
     (unless (= level 1)
       (when org-auto-align-tags (org-align-tags))
       (when org-adapt-indentation (org-fixup-indentation (- diff))))
     (run-hooks 'org-after-promote-entry-hook))))

(defun org-demote ()
  "Demote the current heading lower down the tree."
  (org-with-wide-buffer
   (org-back-to-heading t)
   (let* ((after-change-functions (remq 'flyspell-after-change-function
					after-change-functions))
	  (level (save-match-data (funcall outline-level)))
	  (down-head (concat (make-string (org-get-valid-level level 1) ?*) " "))
	  (diff (abs (- level (length down-head) -1))))
     (org-fold-core-ignore-fragility-checks
       (replace-match (apply #'propertize down-head (text-properties-at (match-beginning 0))) t)
       (when org-auto-align-tags (org-align-tags))
       (when org-adapt-indentation (org-fixup-indentation diff)))
     (run-hooks 'org-after-demote-entry-hook))))

(defun org-cycle-level ()
  "Cycle the level of an empty headline through possible states.
This goes first to child, then to parent, level, then up the hierarchy.
After top level, it switches back to sibling level."
  (interactive)
  (let ((org-adapt-indentation nil))
    (when (and (org-point-at-end-of-empty-headline)
               (not (and (featurep 'org-inlinetask)
                       (org-inlinetask-in-task-p))))
      (setq this-command 'org-cycle-level) ; Only needed for caching
      (let ((cur-level (org-current-level))
            (prev-level (org-get-previous-line-level)))
        (cond
         ;; If first headline in file, promote to top-level.
         ((= prev-level 0)
          (cl-loop repeat (/ (- cur-level 1) (org-level-increment))
		   do (org-do-promote)))
         ;; If same level as prev, demote one.
         ((= prev-level cur-level)
          (org-do-demote))
         ;; If parent is top-level, promote to top level if not already.
         ((= prev-level 1)
          (cl-loop repeat (/ (- cur-level 1) (org-level-increment))
		   do (org-do-promote)))
         ;; If top-level, return to prev-level.
         ((= cur-level 1)
          (cl-loop repeat (/ (- prev-level 1) (org-level-increment))
		   do (org-do-demote)))
         ;; If less than prev-level, promote one.
         ((< cur-level prev-level)
          (org-do-promote))
         ;; If deeper than prev-level, promote until higher than
         ;; prev-level.
         ((> cur-level prev-level)
          (cl-loop repeat (+ 1 (/ (- cur-level prev-level) (org-level-increment)))
		   do (org-do-promote))))
        t))))

(defun org-map-tree (fun)
  "Call FUN for every heading underneath the current one."
  (org-back-to-heading t)
  (let ((level (funcall outline-level)))
    (save-excursion
      (funcall fun)
      (while (and (progn
		    (outline-next-heading)
		    (> (funcall outline-level) level))
		  (not (eobp)))
	(funcall fun)))))

(defun org-map-region (fun beg end)
  "Call FUN for every heading between BEG and END."
  (let ((org-ignore-region t))
    (save-excursion
      (setq end (copy-marker end))
      (goto-char beg)
      (when (and (re-search-forward org-outline-regexp-bol nil t)
		 (< (point) end))
	(funcall fun))
      (while (and (progn
		    (outline-next-heading)
		    (< (point) end))
		  (not (eobp)))
	(funcall fun)))))

(defun org-fixup-indentation (diff)
  "Change the indentation in the current entry by DIFF.

DIFF is an integer.  Indentation is done according to the
following rules:

  - Planning information and property drawers are always indented
    according to the new level of the headline;

  - Footnote definitions and their contents are ignored;

  - Inlinetasks' boundaries are not shifted;

  - Empty lines are ignored;

  - Other lines' indentation are shifted by DIFF columns, unless
    it would introduce a structural change in the document, in
    which case no shifting is done at all.

Assume point is at a heading or an inlinetask beginning."
  (org-with-wide-buffer
   (narrow-to-region (line-beginning-position)
		     (save-excursion
		       (if (org-with-limited-levels (org-at-heading-p))
			   (org-with-limited-levels (outline-next-heading))
			 (org-inlinetask-goto-end))
		       (point)))
   (forward-line)
   ;; Indent properly planning info and property drawer.
   (when (looking-at-p org-planning-line-re)
     (org-indent-line)
     (forward-line))
   (when (looking-at org-property-drawer-re)
     (goto-char (match-end 0))
     (forward-line)
     (org-indent-region (match-beginning 0) (match-end 0)))
   (when (looking-at org-logbook-drawer-re)
     (let ((end-marker  (move-marker (make-marker) (match-end 0)))
	   (col (+ (current-indentation) diff)))
       (when (wholenump col)
	 (while (< (point) end-marker)
           (if (natnump diff)
	       (insert (make-string diff 32))
             (delete-char (abs diff)))
	   (forward-line)))))
   (catch 'no-shift
     (when (or (zerop diff) (not (eq org-adapt-indentation t)))
       (throw 'no-shift nil))
     ;; If DIFF is negative, first check if a shift is possible at all
     ;; (e.g., it doesn't break structure).  This can only happen if
     ;; some contents are not properly indented.
     (let ((case-fold-search t))
       (when (< diff 0)
	 (let ((diff (- diff))
	       (forbidden-re (concat org-outline-regexp
				     "\\|"
				     (substring org-footnote-definition-re 1))))
	   (save-excursion
	     (while (not (eobp))
	       (cond
		((looking-at-p "[ \t]*$") (forward-line))
		((and (looking-at-p org-footnote-definition-re)
		      (let ((e (org-element-at-point)))
			(and (org-element-type-p e 'footnote-definition)
			     (goto-char (org-element-end e))))))
		((looking-at-p org-outline-regexp) (forward-line))
		;; Give up if shifting would move before column 0 or
		;; if it would introduce a headline or a footnote
		;; definition.
		(t
		 (skip-chars-forward " \t")
		 (let ((ind (current-column)))
		   (when (or (< ind diff)
			     (and (= ind diff) (looking-at-p forbidden-re)))
		     (throw 'no-shift nil)))
		 ;; Ignore contents of example blocks and source
		 ;; blocks if their indentation is meant to be
		 ;; preserved.  Jump to block's closing line.
		 (forward-line 0)
		 (or (and (looking-at-p "[ \t]*#\\+BEGIN_\\(EXAMPLE\\|SRC\\)")
			  (let ((e (org-element-at-point)))
			    (and (org-src-preserve-indentation-p e)
			         (goto-char (org-element-end e))
			         (progn (skip-chars-backward " \r\t\n")
				        (forward-line 0)
				        t))))
		     (forward-line))))))))
       ;; Shift lines but footnote definitions, inlinetasks boundaries
       ;; by DIFF.  Also skip contents of source or example blocks
       ;; when indentation is meant to be preserved.
       (while (not (eobp))
	 (cond
	  ((and (looking-at-p org-footnote-definition-re)
		(let ((e (org-element-at-point)))
		  (and (org-element-type-p e 'footnote-definition)
		       (goto-char (org-element-end e))))))
	  ((looking-at-p org-outline-regexp) (forward-line))
	  ((looking-at-p "[ \t]*$") (forward-line))
	  (t
	   (indent-line-to (+ (current-indentation) diff))
	   (forward-line 0)
	   (or (and (looking-at-p "[ \t]*#\\+BEGIN_\\(EXAMPLE\\|SRC\\)")
		    (let ((e (org-element-at-point)))
		      (and (org-src-preserve-indentation-p e)
			   (goto-char (org-element-end e))
			   (progn (skip-chars-backward " \r\t\n")
				  (forward-line 0)
				  t))))
	       (forward-line)))))))))

(defun org-convert-to-odd-levels ()
  "Convert an Org file with all levels allowed to one with odd levels.
This will leave level 1 alone, convert level 2 to level 3, level 3 to
level 5 etc."
  (interactive)
  (when (yes-or-no-p "Are you sure you want to globally change levels to odd? ")
    (let ((outline-level 'org-outline-level)
	  (org-odd-levels-only nil) n)
      (save-excursion
	(goto-char (point-min))
	(while (re-search-forward "^\\*\\*+ " nil t)
	  (setq n (- (length (match-string 0)) 2))
	  (while (>= (setq n (1- n)) 0)
	    (org-demote))
	  (end-of-line 1))))))

(defun org-convert-to-oddeven-levels ()
  "Convert an Org file with only odd levels to one with odd/even levels.
This promotes level 3 to level 2, level 5 to level 3 etc.  If the
file contains a section with an even level, conversion would
destroy the structure of the file.  An error is signaled in this
case."
  (interactive)
  (goto-char (point-min))
  ;; First check if there are no even levels
  (when (re-search-forward "^\\(\\*\\*\\)+ " nil t)
    (org-fold-show-set-visibility 'canonical)
    (error "Not all levels are odd in this file.  Conversion not possible"))
  (when (yes-or-no-p "Are you sure you want to globally change levels to odd-even? ")
    (let ((outline-regexp org-outline-regexp)
	  (outline-level 'org-outline-level)
	  (org-odd-levels-only nil) n)
      (save-excursion
	(goto-char (point-min))
	(while (re-search-forward "^\\*\\*+ " nil t)
	  (setq n (/ (1- (length (match-string 0))) 2))
	  (while (>= (setq n (1- n)) 0)
	    (org-promote))
	  (end-of-line 1))))))

(defun org-tr-level (n)
  "Make N odd if required."
  (if org-odd-levels-only (1+ (/ n 2)) n))

;;; Vertical tree motion, cutting and pasting of subtrees

(defun org-move-subtree-up (&optional arg)
  "Move the current subtree up past ARG headlines of the same level."
  (interactive "p")
  (org-move-subtree-down (- (prefix-numeric-value arg))))

(defun org-clean-visibility-after-subtree-move ()
  "Fix visibility issues after moving a subtree."
  ;; First, find a reasonable region to look at:
  ;; Start two siblings above, end three below
  (let* ((beg (save-excursion
		(and (org-get-previous-sibling)
		     (org-get-previous-sibling))
		(point)))
	 (end (save-excursion
		(and (org-get-next-sibling)
		     (org-get-next-sibling)
		     (org-get-next-sibling))
		(if (org-at-heading-p)
		    (line-end-position)
		  (point))))
	 (level (looking-at "\\*+"))
	 (re (when level (concat "^" (regexp-quote (match-string 0)) " "))))
    (save-excursion
      (save-restriction
	(narrow-to-region beg end)
	(when re
	  ;; Properly fold already folded siblings
	  (goto-char (point-min))
	  (while (re-search-forward re nil t)
	    (when (and (not (org-invisible-p))
		       (org-invisible-p (line-end-position)))
	      (org-fold-heading nil))))
	(org-cycle-hide-drawers 'all)
	(org-cycle-show-empty-lines 'overview)))))

(defun org-move-subtree-down (&optional arg)
  "Move the current subtree down past ARG headlines of the same level."
  (interactive "p")
  (setq arg (prefix-numeric-value arg))
  (org-preserve-local-variables
   (let ((movfunc (if (> arg 0) 'org-get-next-sibling
		    'org-get-previous-sibling))
	 (ins-point (make-marker))
	 (cnt (abs arg))
	 (col (current-column))
	 beg end txt folded)
     ;; Select the tree
     (org-back-to-heading)
     (setq beg (point))
     (save-match-data
       (save-excursion (outline-end-of-heading)
		       (setq folded (org-invisible-p)))
       (progn (org-end-of-subtree nil t)
	      (unless (eobp) (backward-char))))
     (outline-next-heading)
     (setq end (point))
     (goto-char beg)
     ;; Find insertion point, with error handling
     (while (> cnt 0)
       (unless (and (funcall movfunc) (looking-at org-outline-regexp))
	 (goto-char beg)
	 (user-error "Cannot move past superior level or buffer limit"))
       (setq cnt (1- cnt)))
     (when (> arg 0)
       ;; Moving forward - still need to move over subtree
       (org-end-of-subtree t t)
       (save-excursion
	 (org-back-over-empty-lines)
	 (or (bolp) (newline))))
     (move-marker ins-point (point))
     (setq txt (buffer-substring beg end))
     (org-save-markers-in-region beg end)
     (delete-region beg end)
     (when (eq org-fold-core-style 'overlays) (org-remove-empty-overlays-at beg))
     (unless (= beg (point-min)) (org-fold-region (1- beg) beg nil 'outline))
     (unless (bobp) (org-fold-region (1- (point)) (point) nil 'outline))
     (and (not (bolp)) (looking-at "\n") (forward-char 1))
     (let ((bbb (point)))
       (insert-before-markers txt)
       (org-reinstall-markers-in-region bbb)
       (move-marker ins-point bbb))
     (or (bolp) (insert "\n"))
     (goto-char ins-point)
     (org-skip-whitespace)
     (move-marker ins-point nil)
     (if folded
	 (org-fold-subtree t)
       (org-fold-show-entry 'hide-drawers)
       (org-fold-show-children))
     (org-clean-visibility-after-subtree-move)
     ;; move back to the initial column we were at
     (move-to-column col))))

(defvar org-subtree-clip ""
  "Clipboard for cut and paste of subtrees.
This is actually only a copy of the kill, because we use the normal kill
ring.  We need it to check if the kill was created by `org-copy-subtree'.")

(defvar org-subtree-clip-folded nil
  "Was the last copied subtree folded?
This is used to fold the tree back after pasting.")

(defun org-cut-subtree (&optional n)
  "Cut the current subtree into the clipboard.
With prefix arg N, cut this many sequential subtrees.
This is a short-hand for marking the subtree and then cutting it."
  (interactive "p")
  (org-copy-subtree n 'cut))

(defun org-copy-subtree (&optional n cut force-store-markers nosubtrees)
  "Copy the current subtree into the clipboard.
With prefix arg N, copy this many sequential subtrees.
This is a short-hand for marking the subtree and then copying it.
If CUT is non-nil, actually cut the subtree.
If FORCE-STORE-MARKERS is non-nil, store the relative locations
of some markers in the region, even if CUT is non-nil.  This is
useful if the caller implements cut-and-paste as copy-then-paste-then-cut."
  (interactive "p")
  (org-preserve-local-variables
   (let (beg end folded (beg0 (point)))
     (if (called-interactively-p 'any)
	 (org-back-to-heading nil)    ; take what looks like a subtree
       (org-back-to-heading t))	      ; take what is really there
     ;; Do not consider inlinetasks as a subtree.
     (when (org-element-type-p (org-element-at-point) 'inlinetask)
       (org-up-element))
     (setq beg (point))
     (skip-chars-forward " \t\r\n")
     (save-match-data
       (if nosubtrees
	   (outline-next-heading)
	 (save-excursion (outline-end-of-heading)
			 (setq folded (org-invisible-p)))
	 (ignore-errors (org-forward-heading-same-level (1- n) t))
	 (org-end-of-subtree t t)))
     ;; Include the end of an inlinetask
     (when (and (featurep 'org-inlinetask)
		(looking-at-p (concat (org-inlinetask-outline-regexp)
				      "END[ \t]*$")))
       (end-of-line))
     (setq end (point))
     (goto-char beg0)
     (when (> end beg)
       (setq org-subtree-clip-folded folded)
       (when (or cut force-store-markers)
	 (org-save-markers-in-region beg end))
       (if cut (kill-region beg end) (copy-region-as-kill beg end))
       (setq org-subtree-clip (current-kill 0))
       (message "%s: Subtree(s) with %d characters"
		(if cut "Cut" "Copied")
		(length org-subtree-clip))))))

(defun org-paste-subtree (&optional level tree for-yank remove)
  "Paste the clipboard as a subtree, with modification of headline level.

The entire subtree is promoted or demoted in order to match a new headline
level.

If the cursor is at the beginning of a headline, the same level as
that headline is used to paste the tree.

If not, the new level is derived from the *visible* headings
before and after the insertion point, and taken to be the inferior headline
level of the two.  So if the previous visible heading is level 3 and the
next is level 4 (or vice versa), level 4 will be used for insertion.
This makes sure that the subtree remains an independent subtree and does
not swallow low level entries.

You can also force a different level, either by using a numeric prefix
argument, or by inserting the heading marker by hand.  For example, if the
cursor is after \"*****\", then the tree will be shifted to level 5.

If optional TREE is given, use this text instead of the kill ring.

When FOR-YANK is set, this is called by `org-yank'.  In this case, do not
move back over whitespace before inserting, and move point to the end of
the inserted text when done.

When REMOVE is non-nil, remove the subtree from the clipboard."
  (interactive "P")
  (setq tree (or tree (current-kill 0)))
  (unless (org-kill-is-subtree-p tree)
    (user-error
     (substitute-command-keys
      "The kill is not a (set of) tree(s).  Use `\\[yank]' to yank anyway")))
  (org-with-limited-levels
   (org-fold-core-ignore-fragility-checks
     (let* ((visp (not (org-invisible-p)))
	    (txt tree)
	    (old-level (if (string-match org-outline-regexp-bol txt)
			   (- (match-end 0) (match-beginning 0) 1)
		         -1))
            level-indicator?
	    (force-level
	     (cond
	      (level (prefix-numeric-value level))
	      ;; When point is after the stars in an otherwise empty
	      ;; headline, use the number of stars as the forced level.
	      ((and (org-match-line "^\\*+[ \t]*$")
		    (not (eq ?* (char-after))))
	       (setq level-indicator? (org-outline-level)))
	      ((looking-at-p org-outline-regexp-bol) (org-outline-level))))
	    (previous-level
	     (save-excursion
	       (org-previous-visible-heading 1)
	       (if (org-at-heading-p) (org-outline-level) 1)))
	    (next-level
	     (save-excursion
	       (if (org-at-heading-p) (org-outline-level)
	         (org-next-visible-heading 1)
	         (if (org-at-heading-p) (org-outline-level) 1))))
	    (new-level (or force-level (max previous-level next-level)))
	    (shift (if (or (= old-level -1)
			   (= new-level -1)
			   (= old-level new-level))
		       0
		     (- new-level old-level)))
	    (delta (if (> shift 0) -1 1))
	    (func (if (> shift 0) #'org-demote #'org-promote))
	    (org-odd-levels-only nil)
	    beg end newend)
       ;; Remove the forced level indicator.
       (when level-indicator?
         (delete-region (line-beginning-position) (line-beginning-position 2)))
       ;; Paste before the next visible heading or at end of buffer,
       ;; unless point is at the beginning of a headline.
       (unless (and (bolp) (org-at-heading-p))
         (org-next-visible-heading 1)
         (unless (bolp) (insert "\n")))
       (setq beg (point))
       ;; Avoid re-parsing cache elements when i.e. level 1 heading
       ;; is inserted and then promoted.
       (org-combine-change-calls beg beg
         (when (fboundp 'org-id-paste-tracker) (org-id-paste-tracker txt))
         (insert txt)
         (unless (string-suffix-p "\n" txt) (insert "\n"))
         (setq newend (point))
         (org-reinstall-markers-in-region beg)
         (setq end (point))
         (goto-char beg)
         (skip-chars-forward " \t\n\r")
         (setq beg (point))
         (when (and (org-invisible-p) visp)
           (save-excursion (org-fold-heading nil)))
         ;; Shift if necessary.
         (unless (= shift 0)
           (save-restriction
	     (narrow-to-region beg end)
	     (while (not (= shift 0))
	       (org-map-region func (point-min) (point-max))
	       (setq shift (+ delta shift)))
	     (goto-char (point-min))
	     (setq newend (point-max)))))
       (when (or for-yank (called-interactively-p 'interactive))
         (message "Clipboard pasted as level %d subtree" new-level))
       (when (and (not for-yank) ; in this case, org-yank will decide about folding
		  (equal org-subtree-clip tree)
		  org-subtree-clip-folded)
         ;; The tree was folded before it was killed/copied
         (org-fold-subtree t))
       (when for-yank (goto-char newend))
       (when remove (pop kill-ring))))))

(defun org-kill-is-subtree-p (&optional txt)
  "Check if the current kill is an outline subtree, or a set of trees.
Returns nil if kill does not start with a headline, or if the first
headline level is not the largest headline level in the tree.
So this will actually accept several entries of equal levels as well,
which is OK for `org-paste-subtree'.
If optional TXT is given, check this string instead of the current kill."
  (let* ((kill (or txt (ignore-errors (current-kill 0))))
	 (re (org-get-limited-outline-regexp))
	 (^re (concat "^" re))
	 (start-level (and kill
			   (string-match
			    (concat "\\`\\([ \t\n\r]*?\n\\)?\\(" re "\\)")
			    kill)
			   (- (match-end 2) (match-beginning 2) 1)))
	 (start (1+ (or (match-beginning 2) -1))))
    (if (not start-level)
	(progn
	  nil)  ;; does not even start with a heading
      (catch 'exit
	(while (setq start (string-match ^re kill (1+ start)))
	  (when (< (- (match-end 0) (match-beginning 0) 1) start-level)
	    (throw 'exit nil)))
	t))))

(defvar org-markers-to-move nil
  "Markers that should be moved with a cut-and-paste operation.
Those markers are stored together with their positions relative to
the start of the region.")

(defun org-save-markers-in-region (beg end)
  "Check markers in region.
If these markers are between BEG and END, record their position relative
to BEG, so that after moving the block of text, we can put the markers back
into place.
This function gets called just before an entry or tree gets cut from the
buffer.  After re-insertion, `org-reinstall-markers-in-region' must be
called immediately, to move the markers with the entries."
  (setq org-markers-to-move nil)
  (when (featurep 'org-clock)
    (org-clock-save-markers-for-cut-and-paste beg end))
  (when (featurep 'org-agenda)
    (org-agenda-save-markers-for-cut-and-paste beg end)))

(defun org-check-and-save-marker (marker beg end)
  "Check if MARKER is between BEG and END.
If yes, remember the marker and the distance to BEG."
  (when (and (marker-buffer marker)
	     (or (equal (marker-buffer marker) (current-buffer))
                 (equal (marker-buffer marker) (buffer-base-buffer (current-buffer))))
	     (>= marker beg) (< marker end))
    (push (cons marker (- marker beg)) org-markers-to-move)))

(defun org-reinstall-markers-in-region (beg)
  "Move all remembered markers to their position relative to BEG."
  (dolist (x org-markers-to-move)
    (move-marker (car x) (+ beg (cdr x))))
  (setq org-markers-to-move nil))

(defun org-narrow-to-subtree (&optional element)
  "Narrow buffer to the current subtree.
Use the command `\\[widen]' to see the whole buffer again.
With optional argument ELEMENT narrow to subtree around ELEMENT."
  (interactive)
  (let* ((heading
          (org-element-lineage
           (or element (org-element-at-point))
           'headline 'with-self))
         (begin (org-element-begin heading))
         (end (org-element-end heading)))
    (if (and heading end
             ;; Preserve historical behavior throwing an error when
             ;; current heading starts before active narrowing.
             (<= (point-min) begin))
        (narrow-to-region
         begin
         ;; Preserve historical behavior not extending the active
         ;; narrowing when the subtree extends beyond it.
         (min (point-max)
              (if (= end (point-max))
                  end (1- end))))
      (signal 'outline-before-first-heading nil))))

(defun org-toggle-narrow-to-subtree ()
  "Narrow to the subtree at point or widen a narrowed buffer.
Use the command `\\[widen]' to see the whole buffer again."
  (interactive)
  (if (buffer-narrowed-p)
      (progn (widen) (message "Buffer widen"))
    (org-narrow-to-subtree)
    (message "Buffer narrowed to current subtree")))

(defun org-narrow-to-block ()
  "Narrow buffer to the current block.
Use the command `\\[widen]' to see the whole buffer again."
  (interactive)
  (let* ((case-fold-search t)
         (element (org-element-at-point)))
    (if (string-match-p "block" (symbol-name (org-element-type element)))
        (org-narrow-to-element)
      (user-error "Not in a block"))))

(defun org-clone-subtree-with-time-shift (n &optional shift)
  "Clone the task (subtree) at point N times.
The clones will be inserted as siblings.

In interactive use, the user will be prompted for the number of
clones to be produced.  If the entry has a timestamp, the user
will also be prompted for a time shift, which may be a repeater
as used in time stamps, for example `+3d'.  To disable this,
you can call the function with a universal prefix argument.

When a valid repeater is given and the entry contains any time
stamps, the clones will become a sequence in time, with time
stamps in the subtree shifted for each clone produced.  If SHIFT
is nil or the empty string, time stamps will be left alone.  The
ID property of the original subtree is removed.

In each clone, all the CLOCK entries will be removed.  This
prevents Org from considering that the clocked times overlap.

If the original subtree did contain time stamps with a repeater,
the following will happen:
- the repeater will be removed in each clone
- an additional clone will be produced, with the current, unshifted
  date(s) in the entry.
- the original entry will be placed *after* all the clones, with
  repeater intact.
- the start days in the repeater in the original entry will be shifted
  to past the last clone.
In this way you can spell out a number of instances of a repeating task,
and still retain the repeater to cover future instances of the task.

As described above, N+1 clones are produced when the original
subtree has a repeater.  Setting N to 0, then, can be used to
remove the repeater from a subtree and create a shifted clone
with the original repeater."
  (interactive "nNumber of clones to produce: ")
  (unless (wholenump n) (user-error "Invalid number of replications %s" n))
  (when (org-before-first-heading-p) (user-error "No subtree to clone"))
  (let* ((beg (save-excursion (org-back-to-heading t) (point)))
	 (end-of-tree (save-excursion (org-end-of-subtree t t) (point)))
	 (shift
	  (or shift
	      (if (and (not (equal current-prefix-arg '(4)))
		       (save-excursion
			 (goto-char beg)
			 (re-search-forward org-ts-regexp-both end-of-tree t)))
		  (read-from-minibuffer
		   "Date shift per clone (e.g. +1w, empty to copy unchanged): ")
		"")))			;No time shift
	 (doshift
	  (and (org-string-nw-p shift)
	       (or (string-match "\\`[ \t]*\\([+-]?[0-9]+\\)\\([hdwmy]\\)[ \t]*\\'"
				 shift)
		   (user-error "Invalid shift specification %s" shift)))))
    (goto-char end-of-tree)
    (unless (bolp) (insert "\n"))
    (let* ((end (point))
	   (template (buffer-substring beg end))
	   (shift-n (and doshift (string-to-number (match-string 1 shift))))
	   (shift-what (pcase (and doshift (match-string 2 shift))
			 (`nil nil)
			 ("h" 'hour)
			 ("d" 'day)
			 ("w" (setq shift-n (* 7 shift-n)) 'day)
			 ("m" 'month)
			 ("y" 'year)
			 (_ (error "Unsupported time unit"))))
	   (nmin 1)
	   (nmax n)
	   (n-no-remove -1)
	   (org-id-overriding-file-name (buffer-file-name (buffer-base-buffer)))
	   (idprop (org-entry-get beg "ID")))
      (when (and doshift
		 (string-match-p "<[^<>\n]+ [.+]?\\+[0-9]+[hdwmy][^<>\n]*>"
				 template))
	(delete-region beg end)
	(setq end beg)
	(setq nmin 0)
	(setq nmax (1+ nmax))
	(setq n-no-remove nmax))
      (goto-char end)
      (cl-loop for n from nmin to nmax do
	       (insert
		;; Prepare clone.
		(with-temp-buffer
		  (insert template)
		  (org-mode)
		  (goto-char (point-min))
		  (org-fold-show-subtree)
		  (and idprop (if org-clone-delete-id
				  (org-entry-delete nil "ID")
				(org-id-get-create t)))
		  (unless (= n 0)
		    (while (re-search-forward org-clock-line-re nil t)
		      (delete-region (line-beginning-position)
				     (line-beginning-position 2)))
		    (goto-char (point-min))
		    (while (re-search-forward org-drawer-regexp nil t)
		      (org-remove-empty-drawer-at (point))))
		  (goto-char (point-min))
		  (when doshift
		    (while (re-search-forward org-ts-regexp-both nil t)
		      (org-timestamp-change (* n shift-n) shift-what))
		    (unless (= n n-no-remove)
		      (goto-char (point-min))
		      (while (re-search-forward org-ts-regexp nil t)
			(save-excursion
			  (goto-char (match-beginning 0))
			  (when (looking-at "<[^<>\n]+\\( +[.+]?\\+[0-9]+[hdwmy]\\)")
			    (delete-region (match-beginning 1) (match-end 1)))))))
		  (buffer-string)))))
    (goto-char beg)))

;;; Outline path

(defvar org-outline-path-cache nil
  "Alist between buffer positions and outline paths.
It value is an alist (POSITION . PATH) where POSITION is the
buffer position at the beginning of an entry and PATH is a list
of strings describing the outline path for that entry, in reverse
order.")

(defun org--get-outline-path-1 (&optional use-cache)
  "Return outline path to current headline.

Outline path is a list of strings, in reverse order.  When
optional argument USE-CACHE is non-nil, make use of a cache.  See
`org-get-outline-path' for details.

Assume buffer is widened and point is on a headline."
  (or (and use-cache (cdr (assq (point) org-outline-path-cache)))
      (let ((p (point))
	    (heading (let ((case-fold-search nil))
		       (looking-at org-complex-heading-regexp)
		       (if (not (match-end 4)) ""
			 ;; Remove statistics cookies.
			 (org-trim
			  (org-link-display-format
			   (replace-regexp-in-string
			    "\\[[0-9]+%\\]\\|\\[[0-9]+/[0-9]+\\]" ""
			    (match-string-no-properties 4))))))))
        (when (org-element-property :commentedp (org-element-at-point))
          (setq heading (replace-regexp-in-string (format "^%s[ \t]*" org-comment-string) "" heading)))
	(if (org-up-heading-safe)
	    (let ((path (cons heading (org--get-outline-path-1 use-cache))))
	      (when use-cache
		(push (cons p path) org-outline-path-cache))
	      path)
	  ;; This is a new root node.  Since we assume we are moving
	  ;; forward, we can drop previous cache so as to limit number
	  ;; of associations there.
	  (let ((path (list heading)))
	    (when use-cache (setq org-outline-path-cache (list (cons p path))))
	    path)))))

(defun org-get-outline-path (&optional with-self use-cache)
  "Return the outline path to the current entry.

An outline path is a list of ancestors for current headline, as
a list of strings.  Statistics cookies are removed and links are
replaced with their description, if any, or their path otherwise.

When optional argument WITH-SELF is non-nil, the path also
includes the current headline.

When optional argument USE-CACHE is non-nil, cache outline paths
between calls to this function so as to avoid backtracking.  This
argument is useful when planning to find more than one outline
path in the same document.  In that case, there are two
conditions to satisfy:
  - `org-outline-path-cache' is set to nil before starting the
    process;
  - outline paths are computed by increasing buffer positions."
  (org-with-wide-buffer
   (and (or (and with-self (org-back-to-heading t))
	    (org-up-heading-safe))
	(reverse (org--get-outline-path-1 use-cache)))))

(defun org-format-outline-path (path &optional width prefix separator)
  "Format the outline path PATH for display.
WIDTH is the maximum number of characters that is available.
PREFIX is a prefix to be included in the returned string,
such as the file name.
SEPARATOR is inserted between the different parts of the path,
the default is \"/\"."
  (setq width (or width 79))
  (setq path (delq nil path))
  (unless (> width 0)
    (user-error "Argument `width' must be positive"))
  (setq separator (or separator "/"))
  (let* ((org-odd-levels-only nil)
	 (fpath (concat
		 prefix (and prefix path separator)
		 (mapconcat
		  (lambda (s) (replace-regexp-in-string "[ \t]+\\'" "" s))
		  (cl-loop for head in path
			   for n from 0
			   collect (org-add-props
				       head nil 'face
				       (nth (% n org-n-level-faces) org-level-faces)))
		  separator))))
    (when (> (length fpath) width)
      (if (< width 7)
	  ;; It's unlikely that `width' will be this small, but don't
	  ;; waste characters by adding ".." if it is.
	  (setq fpath (substring fpath 0 width))
	(setf (substring fpath (- width 2)) "..")))
    fpath))

(defun org-get-title (&optional buffer-or-file)
  "Collect title from the provided `org-mode' BUFFER-OR-FILE.

Returns nil if there are no #+TITLE property."
  (let ((buffer (cond ((bufferp buffer-or-file) buffer-or-file)
                      ((stringp buffer-or-file) (find-file-noselect
                                                 buffer-or-file))
                      (t (current-buffer)))))
    (with-current-buffer buffer
      (org-macro-initialize-templates)
      (let ((title (assoc-default "title" org-macro-templates)))
        (unless (string= "" title)
          title)))))

(defun org-display-outline-path (&optional file-or-title current separator just-return-string)
  "Display the current outline path in the echo area.

If FILE-OR-TITLE is `title', prepend outline with file title.  If
it is non-nil or title is not present in document, prepend
outline path with the file name.
If CURRENT is non-nil, append the current heading to the output.
SEPARATOR is passed through to `org-format-outline-path'.  It separates
the different parts of the path and defaults to \"/\".
If JUST-RETURN-STRING is non-nil, return a string, don't display a message."
  (interactive "P")
  (let* (case-fold-search
	 (bfn (buffer-file-name (buffer-base-buffer)))
         (title-prop (when (eq file-or-title 'title) (org-get-title)))
	 (path (and (derived-mode-p 'org-mode) (org-get-outline-path)))
	 res)
    (when current (setq path (append path
				     (save-excursion
				       (org-back-to-heading t)
				       (when (looking-at org-complex-heading-regexp)
					 (list (match-string 4)))))))
    (setq res
	  (org-format-outline-path
	   path
	   (1- (frame-width))
	   (and file-or-title bfn (concat (if (and (eq file-or-title 'title) title-prop)
					      title-prop
					    (file-name-nondirectory bfn))
				 separator))
	   separator))
    (add-face-text-property 0 (length res)
			    `(:height ,(face-attribute 'default :height))
			    nil res)
    (if just-return-string
	res
      (org-unlogged-message "%s" res))))

;;; Outline Sorting

(defun org-sort (&optional with-case)
  "Call `org-sort-entries', `org-table-sort-lines' or `org-sort-list'.
Optional argument WITH-CASE means sort case-sensitively."
  (interactive "P")
  (org-call-with-arg
   (cond ((org-at-table-p) #'org-table-sort-lines)
	 ((org-at-item-p) #'org-sort-list)
	 (t #'org-sort-entries))
   with-case))

(defun org-sort-remove-invisible (s)
  "Remove emphasis markers and any invisible property from string S.
Assume S may contain only objects."
  ;; org-element-interpret-data clears any text property, including
  ;; invisible part.
  (org-element-interpret-data
   (let ((tree (org-element-parse-secondary-string
                s (org-element-restriction 'paragraph))))
     (org-element-map tree '(bold code italic link strike-through underline verbatim)
       (lambda (o)
         (pcase (org-element-type o)
           ;; Terminal object.  Replace it with its value.
           ((or `code `verbatim)
            (let ((new (org-element-property :value o)))
              (org-element-insert-before new o)
              (org-element-put-property
               new :post-blank (org-element-post-blank o))))
           ;; Non-terminal objects.  Splice contents.
           (type
            (let ((contents
                   (or (org-element-contents o)
                       (and (eq type 'link)
                            (list (org-element-property :raw-link o)))))
                  (c nil))
              (while contents
                (setq c (pop contents))
                (org-element-insert-before c o))
              (org-element-put-property
               c :post-blank (org-element-post-blank o)))))
         (org-element-extract o)))
     ;; Return modified tree.
     tree)))

(defvar org-after-sorting-entries-or-items-hook nil
  "Hook that is run after a bunch of entries or items have been sorted.
When children are sorted, the cursor is in the parent line when this
hook gets called.  When a region or a plain list is sorted, the cursor
will be in the first entry of the sorted region/list.")

(defun org-sort-entries
    (&optional with-case sorting-type getkey-func compare-func property
	       interactive?)
  "Sort entries on a certain level of an outline tree.
If there is an active region, the entries in the region are sorted.
Else, if the cursor is before the first entry, sort the top-level items.
Else, the children of the entry at point are sorted.

Sorting can be alphabetically, numerically, by date/time as given by
a time stamp, by a property, by priority order, or by a custom function.

The command prompts for the sorting type unless it has been given to the
function through the SORTING-TYPE argument, which needs to be a character,
\(?n ?N ?a ?A ?t ?T ?s ?S ?d ?D ?p ?P ?o ?O ?r ?R ?f ?F ?k ?K).  Here is
the precise meaning of each character:

a   Alphabetically, ignoring the TODO keyword and the priority, if any.
c   By creation time, which is assumed to be the first inactive time stamp
    at the beginning of a line.
d   By deadline date/time.
k   By clocking time.
n   Numerically, by converting the beginning of the entry/item to a number.
o   By order of TODO keywords.
p   By priority according to the cookie.
r   By the value of a property.
s   By scheduled date/time.
t   By date/time, either the first active time stamp in the entry, or, if
    none exist, by the first inactive one.

Capital letters will reverse the sort order.

If the SORTING-TYPE is ?f or ?F, then GETKEY-FUNC specifies a function to be
called with point at the beginning of the record.  It must return a
value that is compatible with COMPARE-FUNC, the function used to
compare entries.

Comparing entries ignores case by default.  However, with an optional argument
WITH-CASE, the sorting considers case as well.

Sorting is done against the visible part of the headlines, it ignores hidden
links.

When sorting is done, call `org-after-sorting-entries-or-items-hook'.

A non-nil value for INTERACTIVE? is used to signal that this
function is being called interactively."
  (interactive (list current-prefix-arg nil nil nil nil t))
  (let ((case-func (if with-case 'identity 'downcase))
        start beg end stars re re2
        txt what tmp)
    ;; Find beginning and end of region to sort
    (cond
     ((org-region-active-p)
      (setq start (region-beginning)
            end (region-end))
      ;; we will sort the region
      ;; Limit the region to full headings.
      (goto-char start)
      ;; Move to beginning of heading.
      ;; If we are inside heading, move to next.
      ;; If we are on heading, move to its begin position.
      (if (org-at-heading-p)
          (forward-line 0)
        (outline-next-heading))
      (setq start (point))
      ;; Extend region end beyond the last subtree.
      (goto-char end)
      (org-end-of-subtree nil t)
      (setq end (point)
            what "region")
      (goto-char start))
     ((or (org-at-heading-p)
          (ignore-errors (progn (org-back-to-heading) t)))
      ;; we will sort the children of the current headline
      (org-back-to-heading)
      (setq start (point)
	    end (progn (org-end-of-subtree t t)
		       (or (bolp) (insert "\n"))
		       (when (>= (org-back-over-empty-lines) 1)
			 (forward-line 1))
		       (point))
	    what "children")
      (goto-char start)
      (org-fold-show-subtree)
      (outline-next-heading))
     (t
      ;; we will sort the top-level entries in this file
      (goto-char (point-min))
      (or (org-at-heading-p) (outline-next-heading))
      (setq start (point))
      (goto-char (point-max))
      (forward-line 0)
      (when (looking-at ".*?\\S-")
	;; File ends in a non-white line
	(end-of-line 1)
	(insert "\n"))
      (setq end (point-max))
      (setq what "top-level")
      (goto-char start)
      (org-fold-show-all '(headings drawers blocks))))

    (setq beg (point))
    (when (>= beg end) (goto-char start) (user-error "Nothing to sort"))

    (looking-at "\\(\\*+\\)")
    (setq stars (match-string 1)
	  re (concat "^" (regexp-quote stars) " +")
	  re2 (concat "^" (regexp-quote (substring stars 0 -1)) "[ \t\n]")
	  txt (buffer-substring beg end))
    (unless (equal (substring txt -1) "\n") (setq txt (concat txt "\n")))
    (when (and (not (equal stars "*")) (string-match re2 txt))
      (user-error "Region to sort contains a level above the first entry"))

    (unless sorting-type
      (message
       "Sort %s: [a]lpha  [n]umeric  [p]riority  p[r]operty  todo[o]rder  [f]unc
               [t]ime [s]cheduled  [d]eadline  [c]reated  cloc[k]ing
               A/N/P/R/O/F/T/S/D/C/K means reversed:"
       what)
      (setq sorting-type (read-char-exclusive)))

    (unless getkey-func
      (and (= (downcase sorting-type) ?f)
	   (setq getkey-func
		 (or (and interactive?
			  (org-read-function
			   "Function for extracting keys: "))
		     (error "Missing key extractor")))))

    (and (= (downcase sorting-type) ?r)
	 (not property)
	 (setq property
	       (completing-read "Property: "
				(mapcar #'list (org-buffer-property-keys t))
				nil t)))

    (when (member sorting-type '(?k ?K)) (org-clock-sum))
    (message "Sorting entries...")

    (save-restriction
      (narrow-to-region start end)
      ;; No trailing newline - add one to avoid
      ;; * heading
      ;; text* another heading
      (save-excursion
        (goto-char end)
        (unless (bolp) (insert "\n")))
      (let ((restore-clock?
	     ;; The clock marker is lost when using `sort-subr'; mark
	     ;; the clock with temporary `:org-clock-marker-backup'
	     ;; text property.
	     (when (and (eq (org-clocking-buffer) (current-buffer))
			(<= start (marker-position org-clock-marker))
			(>= end (marker-position org-clock-marker)))
	       (with-silent-modifications
		 (put-text-property (1- org-clock-marker) org-clock-marker
				    :org-clock-marker-backup t))
	       t))
	    (dcst (downcase sorting-type))
	    (case-fold-search nil)
	    (now (current-time)))
        (org-preserve-local-variables
	 (sort-subr
	  (/= dcst sorting-type)
	  ;; This function moves to the beginning character of the
	  ;; "record" to be sorted.
	  (lambda nil
	    (if (re-search-forward re nil t)
		(goto-char (match-beginning 0))
	      (goto-char (point-max))))
	  ;; This function moves to the last character of the "record" being
	  ;; sorted.
	  (lambda nil
	    (save-match-data
	      (condition-case nil
		  (outline-forward-same-level 1)
		(error
		 (goto-char (point-max))))))
	  ;; This function returns the value that gets sorted against.
	  (lambda ()
	    (cond
	     ((= dcst ?n)
	      (string-to-number
	       (org-sort-remove-invisible (org-get-heading t t t t))))
	     ((= dcst ?a)
	      (funcall case-func
		       (org-sort-remove-invisible (org-get-heading t t t t))))
	     ((= dcst ?k)
	      (or (get-text-property (point) :org-clock-minutes) 0))
	     ((= dcst ?t)
	      (let ((end (save-excursion (outline-next-heading) (point))))
		(if (or (re-search-forward org-ts-regexp end t)
			(re-search-forward org-ts-regexp-both end t))
		    (org-time-string-to-seconds (match-string 0))
		  (float-time now))))
	     ((= dcst ?c)
	      (let ((end (save-excursion (outline-next-heading) (point))))
		(if (re-search-forward
		     (concat "^[ \t]*\\[" org-ts-regexp1 "\\]")
		     end t)
		    (org-time-string-to-seconds (match-string 0))
		  (float-time now))))
	     ((= dcst ?s)
	      (let ((end (save-excursion (outline-next-heading) (point))))
		(if (re-search-forward org-scheduled-time-regexp end t)
		    (org-time-string-to-seconds (match-string 1))
		  (float-time now))))
	     ((= dcst ?d)
	      (let ((end (save-excursion (outline-next-heading) (point))))
		(if (re-search-forward org-deadline-time-regexp end t)
		    (org-time-string-to-seconds (match-string 1))
		  (float-time now))))
	     ((= dcst ?p)
              (if (re-search-forward org-priority-regexp (line-end-position) t)
		  (string-to-char (match-string 2))
		org-priority-default))
	     ((= dcst ?r)
	      (or (org-entry-get nil property) ""))
	     ((= dcst ?o)
	      (when (looking-at org-complex-heading-regexp)
		(let* ((m (match-string 2))
		       (s (if (member m org-done-keywords) '- '+)))
		  (- 99 (funcall s (length (member m org-todo-keywords-1)))))))
	     ((= dcst ?f)
	      (if getkey-func
		  (progn
		    (setq tmp (funcall getkey-func))
		    (when (stringp tmp) (setq tmp (funcall case-func tmp)))
		    tmp)
		(error "Invalid key function `%s'" getkey-func)))
	     (t (error "Invalid sorting type `%c'" sorting-type))))
	  nil
	  (cond
	   ((= dcst ?a) 'string-collate-lessp)
	   ((= dcst ?f)
	    (or compare-func
		(and interactive?
		     (org-read-function
		      (concat "Function for comparing keys "
			      "(empty for default `sort-subr' predicate): ")
		      'allow-empty))))
	   ((member dcst '(?p ?t ?s ?d ?c ?k)) '<))))
	(org-cycle-hide-drawers 'all)
	(when restore-clock?
	  (move-marker org-clock-marker
		       (1+ (next-single-property-change
			    start :org-clock-marker-backup)))
	  (remove-text-properties (1- org-clock-marker) org-clock-marker
				  '(:org-clock-marker-backup t)))))
    (run-hooks 'org-after-sorting-entries-or-items-hook)
    (message "Sorting entries...done")))

(defun org-contextualize-keys (alist contexts)
  "Return valid elements in ALIST depending on CONTEXTS.

`org-agenda-custom-commands' or `org-capture-templates' are the
values used for ALIST, and `org-agenda-custom-commands-contexts'
or `org-capture-templates-contexts' are the associated contexts
definitions."
  (let ((contexts
	 ;; normalize contexts
	 (mapcar
	  (lambda(c) (cond ((listp (cadr c))
			    (list (car c) (car c) (nth 1 c)))
			   ((string= "" (cadr c))
			    (list (car c) (car c) (nth 2 c)))
			   (t c)))
          contexts))
	(a alist) r s)
    ;; loop over all commands or templates
    (dolist (c a)
      (let (vrules repl)
	(cond
	 ((not (assoc (car c) contexts))
	  (push c r))
	 ((and (assoc (car c) contexts)
	       (setq vrules (org-contextualize-validate-key
			     (car c) contexts)))
	  (mapc (lambda (vr)
		  (unless (equal (car vr) (cadr vr))
		    (setq repl vr)))
                vrules)
	  (if (not repl) (push c r)
	    (push (cadr repl) s)
	    (push
	     (cons (car c)
		   (cdr (or (assoc (cadr repl) alist)
			    (error "Undefined key `%s' as contextual replacement for `%s'"
				   (cadr repl) (car c)))))
	     r))))))
    ;; Return limited ALIST, possibly with keys modified, and deduplicated
    (delq
     nil
     (delete-dups
      (mapcar (lambda (x)
		(let ((tpl (car x)))
		  (unless (delq
			   nil
			   (mapcar (lambda (y)
				     (equal y tpl))
				   s))
                    x)))
	      (reverse r))))))

(defun org-contextualize-validate-key (key contexts)
  "Check CONTEXTS for agenda or capture KEY."
  (let (res)
    (dolist (r contexts)
      (dolist (rr (car (last r)))
	(when
	    (and (equal key (car r))
		 (if (functionp rr) (funcall rr)
		   (or (and (eq (car rr) 'in-file)
			    (buffer-file-name)
			    (string-match (cdr rr) (buffer-file-name)))
		       (and (eq (car rr) 'in-mode)
			    (string-match (cdr rr) (symbol-name major-mode)))
		       (and (eq (car rr) 'in-buffer)
			    (string-match (cdr rr) (buffer-name)))
		       (when (and (eq (car rr) 'not-in-file)
				  (buffer-file-name))
			 (not (string-match (cdr rr) (buffer-file-name))))
		       (when (eq (car rr) 'not-in-mode)
			 (not (string-match (cdr rr) (symbol-name major-mode))))
		       (when (eq (car rr) 'not-in-buffer)
			 (not (string-match (cdr rr) (buffer-name)))))))
	  (push r res))))
    (delete-dups (delq nil res))))

;; Defined to provide a value for defcustom, since there is no
;; string-collate-greaterp in Emacs.
(defun org-string-collate-greaterp (s1 s2)
  "Return non-nil if S1 is greater than S2 in collation order."
  (not (string-collate-lessp s1 s2)))

;;;###autoload
(defun org-run-like-in-org-mode (cmd)
  "Run a command, pretending that the current buffer is in Org mode.
This will temporarily bind local variables that are typically bound in
Org mode to the values they have in Org mode, and then interactively
call CMD."
  (org-load-modules-maybe)
  (let (vars vals)
    (dolist (var (org-get-local-variables))
      (when (or (not (boundp (car var)))
		(eq (symbol-value (car var))
		    (default-value (car var))))
	(push (car var) vars)
	(push (cadr var) vals)))
    (cl-progv vars vals
      (call-interactively cmd))))

(defun org-get-category (&optional pos _)
  "Get the category applying to position POS.
Return \"???\" when no category is set.

This function may modify the match data."
  ;; Sync cache.
  (or (org-entry-get-with-inheritance
       "CATEGORY" nil (or pos (point)))
      "???"))

;;; Refresh properties

(defun org-refresh-properties (dprop tprop)
  "Refresh buffer text properties.
DPROP is the drawer property and TPROP is either the
corresponding text property to set, or an alist with each element
being a text property (as a symbol) and a function to apply to
the value of the drawer property."
  (let* ((case-fold-search t)
	 (inhibit-read-only t)
	 (inherit? (org-property-inherit-p dprop))
	 (property-re (org-re-property (concat (regexp-quote dprop) "\\+?") t))
	 (global-or-keyword (and inherit?
				 (org--property-global-or-keyword-value dprop nil))))
    (with-silent-modifications
      (org-with-point-at 1
	;; Set global and keyword based values to the whole buffer.
	(when global-or-keyword
	  (put-text-property (point-min) (point-max) tprop global-or-keyword))
	;; Set values based on property-drawers throughout the document.
	(while (re-search-forward property-re nil t)
	  (when (org-at-property-p)
	    (org-refresh-property tprop (org-entry-get (point) dprop) inherit?))
	  (outline-next-heading))))))

(defun org-refresh-property (tprop p &optional inherit)
  "Refresh the buffer text property TPROP from the drawer property P.

The refresh happens only for the current entry, or the whole
sub-tree if optional argument INHERIT is non-nil.

If point is before first headline, the function applies to the
part before the first headline.  In that particular case, when
optional argument INHERIT is non-nil, it refreshes properties for
the whole buffer."
  (save-excursion
    (org-back-to-heading-or-point-min t)
    (let ((start (point))
	  (end (save-excursion
		 (cond ((and inherit (org-before-first-heading-p))
			(point-max))
		       (inherit
			(org-end-of-subtree t t))
		       ((outline-next-heading))
		       ((point-max))))))
      (with-silent-modifications
	(if (symbolp tprop)
	    ;; TPROP is a text property symbol.
	    (put-text-property start end tprop p)
	  ;; TPROP is an alist with (property . function) elements.
	  (pcase-dolist (`(,prop . ,f) tprop)
	    (put-text-property start end prop (funcall f p))))))))

(defun org-refresh-category-properties ()
  "Refresh category text properties in the buffer."
  (let ((case-fold-search t)
	(inhibit-read-only t)
	(default-category
	 (cond ((null org-category)
		(if buffer-file-name
		    (file-name-sans-extension
		     (file-name-nondirectory buffer-file-name))
		  "???"))
	       ((symbolp org-category) (symbol-name org-category))
	       (t org-category))))
    (let ((category (catch 'buffer-category
                      (org-with-wide-buffer
	               (goto-char (point-max))
	               (while (re-search-backward "^[ \t]*#\\+CATEGORY:" (point-min) t)
	                 (let ((element (org-element-at-point-no-context)))
	                   (when (org-element-type-p element 'keyword)
		             (throw 'buffer-category
		                    (org-element-property :value element))))))
	              default-category)))
      (with-silent-modifications
        (org-with-wide-buffer
         ;; Set buffer-wide property from keyword.  Search last #+CATEGORY
         ;; keyword.  If none is found, fall-back to `org-category' or
         ;; buffer file name, or set it by the document property drawer.
         (put-text-property (point-min) (point-max)
                            'org-category category)
         ;; Set categories from the document property drawer or
         ;; property drawers in the outline.  If category is found in
         ;; the property drawer for the whole buffer that value
         ;; overrides the keyword-based value set above.
         (goto-char (point-min))
         (let ((regexp (org-re-property "CATEGORY")))
           (while (re-search-forward regexp nil t)
             (let ((value (match-string-no-properties 3)))
               (when (org-at-property-p)
                 (put-text-property
                  (save-excursion (org-back-to-heading-or-point-min t))
                  (save-excursion (if (org-before-first-heading-p)
                                      (point-max)
                                    (org-end-of-subtree t t)))
                  'org-category
                  value))))))))))

(defun org-refresh-stats-properties ()
  "Refresh stats text properties in the buffer."
  (with-silent-modifications
    (org-with-point-at 1
      (let ((regexp (concat org-outline-regexp-bol
			    ".*\\[\\([0-9]*\\)\\(?:%\\|/\\([0-9]*\\)\\)\\]")))
	(while (re-search-forward regexp nil t)
	  (let* ((numerator (string-to-number (match-string 1)))
		 (denominator (and (match-end 2)
				   (string-to-number (match-string 2))))
		 (stats (cond ((not denominator) numerator) ;percent
			      ((= denominator 0) 0)
			      (t (/ (* numerator 100) denominator)))))
	    (put-text-property (point) (progn (org-end-of-subtree t t) (point))
			       'org-stats stats)))))))

(defun org-refresh-effort-properties ()
  "Refresh effort properties."
  (org-refresh-properties
   org-effort-property
   '((effort . identity)
     (effort-minutes . org-duration-to-minutes))))

(defun org-find-file-at-mouse (ev)
  "Open file link or URL at mouse."
  (interactive "e")
  (mouse-set-point ev)
  (org-open-at-point 'in-emacs))

(defun org-open-at-mouse (ev)
  "Open file link or URL at mouse.
See the docstring of `org-open-file' for details."
  (interactive "e")
  (mouse-set-point ev)
  (when (eq major-mode 'org-agenda-mode)
    (org-agenda-copy-local-variable 'org-link-abbrev-alist-local))
  (org-open-at-point))

(defvar org-window-config-before-follow-link nil
  "The window configuration before following a link.
This is saved in case the need arises to restore it.")

(defun org--file-default-apps ()
  "Return the default applications for this operating system."
  (pcase system-type
    (`darwin org-file-apps-macos)
    (`windows-nt org-file-apps-windowsnt)
    (_ org-file-apps-gnu)))

(defun org--file-apps-entry-locator-p (entry)
  "Non-nil if ENTRY should be matched against the link by `org-open-file'.

It assumes that is the case when the entry uses a regular
expression which has at least one grouping construct and the
action is either a Lisp form or a command string containing
\"%1\", i.e., using at least one subexpression match as
a parameter."
  (pcase entry
    (`(,selector . ,action)
     (and (stringp selector)
	  (> (regexp-opt-depth selector) 0)
	  (or (and (stringp action)
		   (string-match "%[0-9]" action))
	      (functionp action))))
    (_ nil)))

(defun org--file-apps-regexp-alist (list &optional add-auto-mode)
  "Convert extensions to regular expressions in the cars of LIST.

Also, weed out any non-string entries, because the return value
is used only for regexp matching.

When ADD-AUTO-MODE is non-nil, make all matches in `auto-mode-alist'
point to the symbol `emacs', indicating that the file should be
opened in Emacs."
  (append
   (delq nil
	 (mapcar (lambda (x)
		   (unless (not (stringp (car x)))
		     (if (string-match "\\W" (car x))
			 x
		       (cons (concat "\\." (car x) "\\'") (cdr x)))))
		 list))
   (when add-auto-mode
     (mapcar (lambda (x) (cons (car x) 'emacs)) auto-mode-alist))))

(defun org--open-file-format-command
    (mailcap-command file link match-data)
  "Format MAILCAP-COMMAND to launch viewer for the FILE.

MAILCAP-COMMAND may be an entry from the `org-file-apps' list or viewer
field from mailcap file loaded to `mailcap-mime-data'.  See \"RFC
1524.  A User Agent Configuration Mechanism For Multimedia Mail Format
Information\" (URL `https://www.rfc-editor.org/rfc/rfc1524.html') for
details, man page `mailcap(5)' for brief summary, and Info node
`(emacs-mime) mailcap' for specific related to Emacs.  Only a part of
mailcap specification is supported.

The following substitutions are interpolated in the MAILCAP-COMMAND
string:

- \"%s\" to FILE name passed through
  `convert-standard-filename', so it must be absolute path.

- \"%1\" to \"%9\" groups from MATCH-DATA found in the LINK string by
  the regular expression in the key part of the `org-file-apps' entry.
  (performed by caller).  Not recommended, consider a lisp function
  instead of a shell command.  For example, the following link in an
  Org file

       <file:///usr/share/doc/bash/bashref.pdf::#Redirections::allocate a file>

   may be handled by an `org-file-apps' entry like

       (\"\\\\.pdf\\\\(?:\\\\.[gx]z\\\\|\\\\.bz2\\\\)?::\\\\(#[^:]+\\\\)::\\\\(.+\\\\)\\\\\\='\"
        . \"okular --find %2 %s%1\")

Use backslash \"\\\" to quote percent \"%\" or any other character
including backslash itself.

In addition, each argument is passed through `shell-quote-argument',
so quotes around substitutions should not be used.  For compliance
with mailcap files shipped e.g. in Debian GNU/Linux, single or double
quotes around substitutions are stripped.  It deviates from mailcap
specification that requires file name to be safe for shell and for the
application."
  (let ((spec (list (cons ?s  (convert-standard-filename file))))
        (ngroups (min 9 (- (/ (length match-data) 2) 1))))
    (when (> ngroups 0)
      (set-match-data match-data)
      (dolist (i (number-sequence 1 ngroups))
        (push (cons (+ ?0 i) (match-string-no-properties i link)) spec)))
    (replace-regexp-in-string
     (rx (or (and "\\" (or (group anything) string-end))
             (and (optional (group (any "'\"")))
                  "%"
                  (or (group anything) string-end)
                  (optional (group (backref 2))))))
     (lambda (fmt)
       (let* ((backslash (match-string-no-properties 1 fmt))
              (key (match-string 3 fmt))
              (value (and key (alist-get (string-to-char key) spec))))
         (cond
          (backslash)
          (value (let ((quot (match-string 2 fmt))
                       (subst (shell-quote-argument value)))
                   ;; Remove quotes around the file name - we use
                   ;; `shell-quote-argument'.
                   (if (match-string 4 fmt)
                       subst
                     (concat quot subst))))
          (t (error "Invalid format `%s'" fmt)))))
     mailcap-command nil 'literal)))

;;;###autoload
(defun org-open-file (path &optional in-emacs line search)
  "Open the file at PATH.
First, this expands any special file name abbreviations.  Then the
configuration variable `org-file-apps' is checked if it contains an
entry for this file type, and if yes, the corresponding command is launched.

If no application is found, Emacs simply visits the file.

With optional prefix argument IN-EMACS, Emacs will visit the file.
With a double \\[universal-argument] \\[universal-argument] \
prefix arg, Org tries to avoid opening in Emacs
and to use an external application to visit the file.

Optional LINE specifies a line to go to, optional SEARCH a string
to search for.  If LINE or SEARCH is given, the file will be
opened in Emacs, unless an entry from `org-file-apps' that makes
use of groups in a regexp matches.

If you want to change the way frames are used when following a
link, please customize `org-link-frame-setup'.

If the file does not exist, throw an error."
  (let* ((file (if (equal path "") buffer-file-name
		 (substitute-in-file-name (expand-file-name path))))
	 (file-apps (append org-file-apps (org--file-default-apps)))
	 (apps (cl-remove-if #'org--file-apps-entry-locator-p file-apps))
	 (apps-locator (cl-remove-if-not #'org--file-apps-entry-locator-p
                                         file-apps))
	 (remp (and (assq 'remote apps) (file-remote-p file)))
	 (dirp (unless remp (file-directory-p file)))
	 (file (if (and dirp org-open-directory-means-index-dot-org)
		   (concat (file-name-as-directory file) "index.org")
		 file))
	 (a-m-a-p (assq 'auto-mode apps))
	 (dfile (downcase file))
	 ;; Reconstruct the original link from the PATH, LINE and
	 ;; SEARCH args.
	 (link (cond (line (concat file "::" (number-to-string line)))
		     (search (concat file "::" search))
		     (t file)))
	 (ext
	  (and (string-match "\\`.*?\\.\\([a-zA-Z0-9]+\\(\\.gz\\)?\\)\\'" dfile)
	       (match-string 1 dfile)))
	 (save-position-maybe
	  (let ((old-buffer (current-buffer))
		(old-pos (point))
		(old-mode major-mode))
	    (lambda ()
	      (and (derived-mode-p 'org-mode)
		   (eq old-mode 'org-mode)
		   (or (not (eq old-buffer (current-buffer)))
		       (not (eq old-pos (point))))
		   (org-mark-ring-push old-pos old-buffer)))))
	 cmd link-match-data)
    (cond
     ((member in-emacs '((16) system))
      (setq cmd (cdr (assq 'system apps))))
     (in-emacs (setq cmd 'emacs))
     (t
      (setq cmd (or (and remp (cdr (assq 'remote apps)))
		    (and dirp (cdr (assq 'directory apps)))
		    ;; First, try matching against apps-locator if we
		    ;; get a match here, store the match data for
		    ;; later.
		    (let* ((case-fold-search t)
                           (match (assoc-default link apps-locator
                                                 'string-match)))
		      (if match
			  (progn (setq link-match-data (match-data))
				 match)
			(progn (setq in-emacs (or in-emacs line search))
			       nil))) ; if we have no match in apps-locator,
					; always open the file in emacs if line or search
					; is given (for backwards compatibility)
		    (assoc-default dfile
				   (org--file-apps-regexp-alist apps a-m-a-p)
				   'string-match)
		    (cdr (assoc ext apps))
		    (cdr (assq t apps))))))
    (when (eq cmd 'system)
      (setq cmd (cdr (assq 'system apps))))
    (when (eq cmd 'default)
      (setq cmd (cdr (assoc t apps))))
    (when (eq cmd 'mailcap)
      (require 'mailcap)
      (mailcap-parse-mailcaps)
      (let* ((mime-type (mailcap-extension-to-mime (or ext "")))
	     (command (mailcap-mime-info mime-type)))
	(if (stringp command)
	    (setq cmd command)
	  (setq cmd 'emacs))))
    (when (and (not (eq cmd 'emacs)) ; Emacs has no problems with non-ex files
	       (not (file-exists-p file))
	       (not org-open-non-existing-files))
      (user-error "No such file: %s" file))
    (cond
     ((org-string-nw-p cmd)
      (setq cmd (org--open-file-format-command cmd file link link-match-data))

      (save-window-excursion
	(message "Running %s...done" cmd)
        ;; Handlers such as "gio open" and kde-open5 start viewer in background
        ;; and exit immediately.  Use pipe connection type instead of pty to
        ;; avoid killing children processes with SIGHUP when temporary terminal
        ;; session is finished.
        ;;
        ;; TODO: Once minimum Emacs version is 25.1 or above, consider using
        ;; the `make-process' invocation from 5db61eb0f929 to get more helpful
        ;; error messages.
        (let ((process-connection-type nil))
	  (start-process-shell-command cmd nil cmd))
	(and (boundp 'org-wait) (numberp org-wait) (sit-for org-wait))))
     ((or (stringp cmd)
	  (eq cmd 'emacs))
      (funcall (org-link-frame-setup-function 'file) file)
      (widen)
      (cond (line (org-goto-line line)
		  (when (derived-mode-p 'org-mode) (org-fold-reveal)))
	    (search (condition-case err
			(org-link-search search)
		      ;; Save position before error-ing out so user
		      ;; can easily move back to the original buffer.
		      (error (funcall save-position-maybe)
			     (error "%s" (error-message-string err)))))))
     ((functionp cmd)
      (save-match-data
	(set-match-data link-match-data)
	(condition-case nil
	    (funcall cmd file link)
	  ;; FIXME: Remove this check when most default installations
	  ;; of Emacs have at least Org 9.0.
	  ((debug wrong-number-of-arguments wrong-type-argument
		  invalid-function)
	   (user-error "Please see Org News for version 9.0 about \
`org-file-apps'--Lisp error: %S" cmd)))))
     ((consp cmd)
      ;; FIXME: Remove this check when most default installations of
      ;; Emacs have at least Org 9.0.  Heads-up instead of silently
      ;; fall back to `org-link-frame-setup' for an old usage of
      ;; `org-file-apps' with sexp instead of a function for `cmd'.
      (user-error "Please see Org News for version 9.0 about \
`org-file-apps'--Error: Deprecated usage of %S" cmd))
     (t (funcall (org-link-frame-setup-function 'file) file)))
    (funcall save-position-maybe)))

;;;###autoload
(defun org-open-at-point-global ()
  "Follow a link or a timestamp like Org mode does.
Also follow links and emails as seen by `thing-at-point'.
This command can be called in any mode to follow an external
link or a timestamp that has Org mode syntax.  Its behavior
is undefined when called on internal links like fuzzy links.
Raise a user error when there is nothing to follow."
  (interactive)
  (let ((tap-url (thing-at-point 'url))
	(tap-email (thing-at-point 'email)))
    (cond ((org-in-regexp
            org-link-any-re
            (let ((origin (point)))
              (max
               (save-excursion
                 (backward-paragraph)
                 (count-lines (point) origin))
               (save-excursion
                 (forward-paragraph)
                 (count-lines origin (point))))))
	   (org-link-open-from-string (match-string-no-properties 0)))
	  ((or (org-in-regexp org-ts-regexp-both nil t)
	       (org-in-regexp org-tsr-regexp-both nil t))
	   (org-follow-timestamp-link))
	  (tap-url (org-link-open-from-string tap-url))
	  (tap-email (org-link-open-from-string
		      (concat "mailto:" tap-email)))
	  (t (user-error "No link found")))))

(defvar org-open-at-point-functions nil
  "Hook that is run when following a link at point.

Functions in this hook must return t if they identify and follow
a link at point.  If they don't find anything interesting at point,
they must return nil.")

(defun org-open-at-point (&optional arg)
  "Open thing at point.
The thing can be a link, citation, timestamp, footnote, src-block or
tags.

When point is on a link, follow it.  Normally, files will be opened by
an appropriate application (see `org-file-apps').  If the optional prefix
argument ARG is non-nil, Emacs will visit the file.  With a double
prefix argument, try to open outside of Emacs, in the application the
system uses for this file type.

When point is on a timestamp, open the agenda at the day
specified.

When point is a footnote definition, move to the first reference
found.  If it is on a reference, move to the associated
definition.

When point is on a src-block of inline src-block, open its result.

When point is on a citation, follow it.

When point is on a headline, display a list of every link in the
entry, so it is possible to pick one, or all, of them.  If point
is on a tag, call `org-tags-view' instead.

On top of syntactically correct links, this function also tries
to open links and timestamps in comments, node properties, and
keywords if point is on something looking like a timestamp or
a link."
  (interactive "P")
  (org-load-modules-maybe)
  (setq org-window-config-before-follow-link (current-window-configuration))
  (org-remove-occur-highlights nil nil t)
  (unless (run-hook-with-args-until-success 'org-open-at-point-functions)
    (let* ((context
	    ;; Only consider supported types, even if they are not the
	    ;; closest one.
	    (org-element-lineage
	     (org-element-context)
	     '(citation citation-reference clock comment comment-block
                        footnote-definition footnote-reference headline
                        inline-src-block inlinetask keyword link node-property
                        planning src-block timestamp)
	     t))
	   (type (org-element-type context))
	   (value (org-element-property :value context)))
      (cond
       ((not type) (user-error "No link found"))
       ;; No valid link at point.  For convenience, look if something
       ;; looks like a link under point in some specific places.
       ((memq type '(comment comment-block node-property keyword))
	(call-interactively #'org-open-at-point-global))
       ;; On a headline or an inlinetask, but not on a timestamp,
       ;; a link, a footnote reference or a citation.
       ((memq type '(headline inlinetask))
	(org-match-line org-complex-heading-regexp)
	(let ((tags-beg (match-beginning 5))
	      (tags-end (match-end 5)))
	  (if (and tags-beg (>= (point) tags-beg) (< (point) tags-end))
	      ;; On tags.
	      (org-tags-view
	       arg
	       (save-excursion
		 (let* ((beg-tag (or (search-backward ":" tags-beg 'at-limit) (point)))
			(end-tag (search-forward ":" tags-end nil 2)))
		   (buffer-substring (1+ beg-tag) (1- end-tag)))))
	    ;; Not on tags.
	    (pcase (org-offer-links-in-entry (current-buffer) (point) arg)
	      (`(nil . ,_)
	       (require 'org-attach)
	       (when (org-attach-dir)
		 (message "Opening attachment")
		 (if (equal arg '(4))
		     (org-attach-reveal-in-emacs)
		   (org-attach-reveal))))
	      (`(,links . ,links-end)
               (let ((link-marker (make-marker))
                     (last-moved-marker (point-marker)))
	         (dolist (link (if (stringp links) (list links) links))
		   (search-forward link nil links-end)
		   (goto-char (match-beginning 0))
                   (move-marker link-marker (point))
                   (save-excursion
		     (org-open-at-point arg)
                     (unless (equal (point-marker) link-marker)
                       (move-marker last-moved-marker (point-marker)))))
                 ;; If any of the links moved point in current buffer,
                 ;; move to the point corresponding to such latest link.
                 ;; Otherwise, restore the original point position.
                 (goto-char last-moved-marker)))))))
       ;; On a footnote reference or at definition's label.
       ((or (eq type 'footnote-reference)
	    (and (eq type 'footnote-definition)
		 (save-excursion
		   ;; Do not validate action when point is on the
		   ;; spaces right after the footnote label, in order
		   ;; to be on par with behavior on links.
		   (skip-chars-forward " \t")
		   (let ((begin
			  (org-element-contents-begin context)))
		     (if begin (< (point) begin)
		       (= (org-element-post-affiliated context)
			  (line-beginning-position)))))))
	(org-footnote-action))
       ;; On a planning line.  Check if we are really on a timestamp.
       ((and (eq type 'planning)
	     (org-in-regexp org-ts-regexp-both nil t))
	(org-follow-timestamp-link))
       ;; On a clock line, make sure point is on the timestamp
       ;; before opening it.
       ((and (eq type 'clock)
	     value
	     (>= (point) (org-element-begin value))
	     (<= (point) (org-element-end value)))
	(org-follow-timestamp-link))
       ((eq type 'src-block) (org-babel-open-src-block-result))
       ;; Do nothing on white spaces after an object.
       ((>= (point)
	    (save-excursion
	      (goto-char (org-element-end context))
	      (skip-chars-backward " \t")
	      (point)))
	(user-error "No link found"))
       ((eq type 'inline-src-block) (org-babel-open-src-block-result))
       ((eq type 'timestamp) (org-follow-timestamp-link))
       ((eq type 'link) (org-link-open context arg))
       ((memq type '(citation citation-reference)) (org-cite-follow context arg))
       (t (user-error "No link found")))))
  (run-hook-with-args 'org-follow-link-hook))

;;;###autoload
(defun org-offer-links-in-entry (buffer marker &optional nth zero)
  "Offer links in the current entry and return the selected link.
If there is only one link, return it.
If NTH is an integer, return the NTH link found.
If ZERO is a string, check also this string for a link, and if
there is one, return it."
  (with-current-buffer buffer
    (org-with-wide-buffer
     (goto-char marker)
     (let ((cnt ?0)
	   have-zero end links link c)
       (when (and (stringp zero) (string-match org-link-bracket-re zero))
	 (push (match-string 0 zero) links)
	 (setq cnt (1- cnt) have-zero t))
       (save-excursion
	 (org-back-to-heading t)
	 (setq end (save-excursion (outline-next-heading) (point)))
	 (while (re-search-forward org-link-any-re end t)
           ;; Only consider valid links or links openable via
           ;; `org-open-at-point'.
           (when (org-element-type-p
                  (save-match-data (org-element-context))
                  '(link comment comment-block node-property keyword))
	     (push (match-string 0) links)))
	 (setq links (org-uniquify (reverse links))))
       (cond
	((null links)
	 (message "No links"))
	((equal (length links) 1)
	 (setq link (car links)))
	((and (integerp nth) (>= (length links) (if have-zero (1+ nth) nth)))
	 (setq link (nth (if have-zero nth (1- nth)) links)))
	(t				; we have to select a link
	 (save-excursion
	   (save-window-excursion
	     (delete-other-windows)
	     (with-output-to-temp-buffer "*Select Link*"
	       (dolist (l links)
		 (cond
		  ((not (string-match org-link-bracket-re l))
		   (princ (format "[%c]  %s\n" (cl-incf cnt)
				  (org-unbracket-string "<" ">" l))))
		  ((match-end 2)
		   (princ (format "[%c]  %s (%s)\n" (cl-incf cnt)
				  (match-string 2 l) (match-string 1 l))))
		  (t (princ (format "[%c]  %s\n" (cl-incf cnt)
				    (match-string 1 l)))))))
	     (org-fit-window-to-buffer (get-buffer-window "*Select Link*"))
	     (message "Select link to open, RET to open all:")
	     (setq c (read-char-exclusive))
	     (and (get-buffer "*Select Link*") (kill-buffer "*Select Link*"))))
	 (when (equal c ?q) (user-error "Abort"))
	 (if (equal c ?\C-m)
	     (setq link links)
	   (setq nth (- c ?0))
	   (when have-zero (setq nth (1+ nth)))
	   (unless (and (integerp nth) (>= (length links) nth))
	     (user-error "Invalid link selection"))
	   (setq link (nth (1- nth) links)))))
       (cons link end)))))

;;; File search

(defun org-do-occur (regexp &optional cleanup)
  "Call the Emacs command `occur'.
If CLEANUP is non-nil, remove the printout of the regular expression
in the *Occur* buffer.  This is useful if the regex is long and not useful
to read."
  (occur regexp)
  (when cleanup
    (let ((cwin (selected-window)) win beg end)
      (when (setq win (get-buffer-window "*Occur*"))
	(select-window win))
      (goto-char (point-min))
      (when (re-search-forward "match[a-z]+" nil t)
	(setq beg (match-end 0))
	(when (re-search-forward "^[ \t]*[0-9]+" nil t)
	  (setq end (1- (match-beginning 0)))))
      (and beg end (let ((inhibit-read-only t)) (delete-region beg end)))
      (goto-char (point-min))
      (select-window cwin))))

\f
;;; The Mark Ring

(defvar org-mark-ring nil
  "Mark ring for positions before jumps in Org mode.")

(defvar org-mark-ring-last-goto nil
  "Last position in the mark ring used to go back.")

;; Fill and close the ring
(setq org-mark-ring nil)
(setq org-mark-ring-last-goto nil) ;in case file is reloaded

(dotimes (_ org-mark-ring-length) (push (make-marker) org-mark-ring))
(setcdr (nthcdr (1- org-mark-ring-length) org-mark-ring)
	org-mark-ring)

(defun org-mark-ring-push (&optional pos buffer)
  "Put the current position into the mark ring and rotate it.
Also push position into the Emacs mark ring.  If optional
argument POS and BUFFER are not nil, mark this location instead."
  (interactive)
  (let ((pos (or pos (point)))
	(buffer (or buffer (current-buffer))))
    (with-current-buffer buffer
      (org-with-point-at pos (push-mark nil t)))
    (setq org-mark-ring (nthcdr (1- org-mark-ring-length) org-mark-ring))
    (move-marker (car org-mark-ring) pos buffer))
  (message
   (substitute-command-keys
    "Position saved to mark ring, go back with `\\[org-mark-ring-goto]'.")))

(defun org-mark-ring-goto (&optional n)
  "Jump to the previous position in the mark ring.
With prefix arg N, jump back that many stored positions.  When
called several times in succession, walk through the entire ring.
Org mode commands jumping to a different position in the current file,
or to another Org file, automatically push the old position onto the ring."
  (interactive "p")
  (let (p m)
    (if (eq last-command this-command)
	(setq p (nthcdr n (or org-mark-ring-last-goto org-mark-ring)))
      (setq p org-mark-ring))
    (setq org-mark-ring-last-goto p)
    (setq m (car p))
    (pop-to-buffer-same-window (marker-buffer m))
    (goto-char m)
    (when (or (org-invisible-p) (org-invisible-p2)) (org-fold-show-context 'mark-goto))))

;;; Following specific links

(defvar org-agenda-buffer-tmp-name)
(defvar org-agenda-start-on-weekday)
(defvar org-agenda-buffer-name)
(defun org-follow-timestamp-link ()
  "Open an agenda view for the timestamp date/range at point."
  (require 'org-agenda)
  ;; Avoid changing the global value.
  (let ((org-agenda-buffer-name org-agenda-buffer-name))
    (cond
     ((org-at-date-range-p t)
      (let ((org-agenda-start-on-weekday)
	    (t1 (match-string 1))
	    (t2 (match-string 2)) tt1 tt2)
	(setq tt1 (time-to-days (org-time-string-to-time t1))
	      tt2 (time-to-days (org-time-string-to-time t2)))
	(let ((org-agenda-buffer-tmp-name
	       (format "*Org Agenda(a:%s)"
		       (concat (substring t1 0 10) "--" (substring t2 0 10)))))
	  (org-agenda-list nil tt1 (1+ (- tt2 tt1))))))
     ((org-at-timestamp-p 'lax)
      (let ((org-agenda-buffer-tmp-name
	     (format "*Org Agenda(a:%s)" (substring (match-string 1) 0 10))))
	(org-agenda-list nil (time-to-days (org-time-string-to-time
					    (substring (match-string 1) 0 10)))
			 1)))
     (t (error "This should not happen")))))


;;; Following file links
(declare-function mailcap-parse-mailcaps "mailcap" (&optional path force))
(declare-function mailcap-extension-to-mime "mailcap" (extn))
(declare-function mailcap-mime-info
		  "mailcap" (string &optional request no-decode))
(defvar org-wait nil)

;;;; Refiling

(defun org-get-org-file ()
  "Read a filename, with default directory `org-directory'."
  (let ((default (or org-default-notes-file remember-data-file)))
    (read-file-name (format "File name [%s]: " default)
		    (file-name-as-directory org-directory)
		    default)))

(defun org-notes-order-reversed-p ()
  "Check if the current file should receive notes in reversed order."
  (cond
   ((not org-reverse-note-order) nil)
   ((listp org-reverse-note-order)
    (catch 'exit
        (dolist (entry org-reverse-note-order)
          (when (string-match (car entry) buffer-file-name)
	    (throw 'exit (cdr entry))))))
   (t org-reverse-note-order)))

(defvar org-agenda-new-buffers nil
  "Buffers created to visit agenda files.")

(declare-function org-string-nw-p "org-macs" (s))
;;;; Dynamic blocks

(defun org-find-dblock (name)
  "Find the first dynamic block with name NAME in the buffer.
If not found, stay at current position and return nil."
  (let ((case-fold-search t) pos)
    (save-excursion
      (goto-char (point-min))
      (setq pos (and (re-search-forward
		      (concat "^[ \t]*#\\+\\(?:BEGIN\\|begin\\):[ \t]+" name "\\>") nil t)
		     (match-beginning 0))))
    (when pos (goto-char pos))
    pos))

(defun org-create-dblock (plist)
  "Create a dynamic block section, with parameters taken from PLIST.
PLIST must contain a :name entry which is used as the name of the block."
  (when (string-match "\\S-" (buffer-substring (line-beginning-position)
                                              (line-end-position)))
    (end-of-line 1)
    (newline))
  (let ((col (current-column))
	(name (plist-get plist :name)))
    (insert "#+BEGIN: " name)
    (while plist
      (if (eq (car plist) :name)
	  (setq plist (cddr plist))
	(insert " " (prin1-to-string (pop plist)))))
    (insert "\n\n" (make-string col ?\ ) "#+END:\n")
    (forward-line -3)))

(defun org-prepare-dblock ()
  "Prepare dynamic block for refresh.
This empties the block, puts the cursor at the insert position and returns
the property list including an extra property :name with the block name."
  (unless (looking-at org-dblock-start-re)
    (user-error "Not at a dynamic block"))
  (let* ((begdel (1+ (match-end 0)))
	 (name (org-no-properties (match-string 1)))
	 (params (append (list :name name)
			 (read (concat "(" (match-string 3) ")")))))
    (save-excursion
      (forward-line 0)
      (skip-chars-forward " \t")
      (setq params (plist-put params :indentation-column (current-column))))
    (unless (re-search-forward org-dblock-end-re nil t)
      (error "Dynamic block not terminated"))
    (setq params
	  (append params
		  (list :content (buffer-substring
				  begdel (match-beginning 0)))))
    (delete-region begdel (match-beginning 0))
    (goto-char begdel)
    (open-line 1)
    params))

(defun org-map-dblocks (&optional command)
  "Apply COMMAND to all dynamic blocks in the current buffer.
If COMMAND is not given, use `org-update-dblock'."
  (let ((cmd (or command 'org-update-dblock)))
    (save-excursion
      (goto-char (point-min))
      (while (re-search-forward org-dblock-start-re nil t)
	(goto-char (match-beginning 0))
        (save-excursion
          (condition-case-unless-debug nil
              (funcall cmd)
            (error (message "Error during update of dynamic block"))))
	(unless (re-search-forward org-dblock-end-re nil t)
	  (error "Dynamic block not terminated"))))))

(defvar org-dynamic-block-alist nil
  "Alist defining all the Org dynamic blocks.

The key is the dynamic block type name, as a string.  The value
is the function used to insert the dynamic block.

Use `org-dynamic-block-define' to populate it.")

(defun org-dynamic-block-function (type)
  "Return function associated to a given dynamic block type.
TYPE is the dynamic block type, as a string."
  (cdr (assoc type org-dynamic-block-alist)))

(defun org-dynamic-block-types ()
  "List all defined dynamic block types."
  (mapcar #'car org-dynamic-block-alist))

;;;###org-autoload
(defun org-dynamic-block-define (type func)
  "Define dynamic block TYPE with FUNC.
TYPE is a string.  FUNC is the function creating the dynamic
block of such type.  FUNC must be able to accept zero arguments."
  (pcase (assoc type org-dynamic-block-alist)
    (`nil (push (cons type func) org-dynamic-block-alist))
    (def (setcdr def func))))

(defun org-dynamic-block-insert-dblock (type &optional interactive-p)
  "Insert a dynamic block of type TYPE.
When used interactively, select the dynamic block types among
defined types, per `org-dynamic-block-define'.  If INTERACTIVE-P
is non-nil, call the dynamic block function interactively."
  (interactive (list (completing-read "Dynamic block: "
				      (org-dynamic-block-types))
		     t))
  (pcase (org-dynamic-block-function type)
    (`nil (error "No such dynamic block: %S" type))
    ((and f (pred functionp))
     (if (and interactive-p (commandp f)) (call-interactively f) (funcall f)))
    (_ (error "Invalid function for dynamic block %S" type))))

(defun org-dblock-update (&optional arg)
  "User command for updating dynamic blocks.
Update the dynamic block at point.  With prefix ARG, update all dynamic
blocks in the buffer."
  (interactive "P")
  (if arg
      (org-update-all-dblocks)
    (or (looking-at org-dblock-start-re)
	(org-beginning-of-dblock))
    (org-update-dblock)))

(defun org-update-dblock ()
  "Update the dynamic block at point.
This means to empty the block, parse for parameters and then call
the correct writing function."
  (interactive)
  (save-excursion
    (let* ((win (selected-window))
	   (pos (point))
	   (line (org-current-line))
	   (params
            ;; Called for side effect.
            (org-prepare-dblock))
	   (name (plist-get params :name))
	   (indent (plist-get params :indentation-column))
	   (cmd (intern (concat "org-dblock-write:" name))))
      (message "Updating dynamic block `%s' at line %d..." name line)
      (funcall cmd params)
      (message "Updating dynamic block `%s' at line %d...done" name line)
      (goto-char pos)
      (when (and indent (> indent 0))
	(setq indent (make-string indent ?\ ))
	(save-excursion
	  (select-window win)
	  (org-beginning-of-dblock)
	  (forward-line 1)
	  (while (not (looking-at org-dblock-end-re))
	    (insert indent)
	    (forward-line 1))
	  (when (looking-at org-dblock-end-re)
	    (and (looking-at "[ \t]+")
		 (replace-match ""))
	    (insert indent)))))))

(defun org-beginning-of-dblock ()
  "Find the beginning of the dynamic block at point.
Error if there is no such block at point."
  (let ((pos (point))
	beg)
    (end-of-line 1)
    (if (and (re-search-backward org-dblock-start-re nil t)
	     (setq beg (match-beginning 0))
	     (re-search-forward org-dblock-end-re nil t)
	     (> (match-end 0) pos))
	(goto-char beg)
      (goto-char pos)
      (error "Not in a dynamic block"))))

(defun org-update-all-dblocks ()
  "Update all dynamic blocks in the buffer.
This function can be used in a hook."
  (interactive)
  (when (derived-mode-p 'org-mode)
    (org-map-dblocks 'org-update-dblock)))


;;;; Completion

(declare-function org-export-backend-options "ox" (cl-x) t)
(defun org-get-export-keywords ()
  "Return a list of all currently understood export keywords.
Export keywords include options, block names, attributes and
keywords relative to each registered export backend."
  (let (keywords)
    (dolist (backend
	     (bound-and-true-p org-export-registered-backends)
	     (delq nil keywords))
      ;; Backend name (for keywords, like #+LATEX:)
      (push (upcase (symbol-name (org-export-backend-name backend))) keywords)
      (dolist (option-entry (org-export-backend-options backend))
	;; Backend options.
	(push (nth 1 option-entry) keywords)))))

(defconst org-options-keywords
  '("ARCHIVE:" "AUTHOR:" "BIBLIOGRAPHY:" "BIND:" "CATEGORY:" "CITE_EXPORT:"
    "COLUMNS:" "CREATOR:" "DATE:" "DESCRIPTION:" "DRAWERS:" "EMAIL:"
    "EXCLUDE_TAGS:" "FILETAGS:" "INCLUDE:" "INDEX:" "KEYWORDS:" "LANGUAGE:"
    "MACRO:" "OPTIONS:" "PROPERTY:" "PRINT_BIBLIOGRAPHY" "PRIORITIES:"
    "SELECT_TAGS:" "SEQ_TODO:" "SETUPFILE:" "STARTUP:" "TAGS:" "TITLE:" "TODO:"
    "TYP_TODO:" "SELECT_TAGS:" "EXCLUDE_TAGS:" "EXPORT_FILE_NAME:"))

(defcustom org-structure-template-alist
  '(("a" . "export ascii")
    ("c" . "center")
    ("C" . "comment")
    ("e" . "example")
    ("E" . "export")
    ("h" . "export html")
    ("l" . "export latex")
    ("q" . "quote")
    ("s" . "src")
    ("v" . "verse"))
  "An alist of keys and block types.
`org-insert-structure-template' will display a menu with this list of
templates to choose from.  The block type is inserted, with
\"#+begin_\" and \"#+end_\" added automatically.  If the block type
consists of just uppercase letters, \"#+BEGIN_\" and \"#+END_\" are
added instead.

The menu keys are defined by the car of each entry in this alist.
If two entries have the keys \"a\" and \"aa\" respectively, the
former will be inserted by typing \"a TAB/RET/SPC\" and the
latter will be inserted by typing \"aa\".  If an entry with the
key \"aab\" is later added, it can be inserted by typing \"ab\".

If loaded, Org Tempo also uses `org-structure-template-alist'.  A
block can be inserted by pressing TAB after the string \"<KEY\"."
  :group 'org-edit-structure
  :type '(repeat
	  (cons (string :tag "Key")
		(string :tag "Template")))
  :package-version '(Org . "9.6"))

(defun org--check-org-structure-template-alist (&optional checklist)
  "Check whether `org-structure-template-alist' is set up correctly.
In particular, check if the Org 9.2 format is used as opposed to
previous format."
  (let ((elm (cl-remove-if-not (lambda (x) (listp (cdr x)))
			       (or (symbol-value checklist)
				   org-structure-template-alist))))
    (when elm
      (org-display-warning
       (format "
Please update the entries of `%s'.

In Org 9.2 the format was changed from something like

    (\"s\" \"#+BEGIN_SRC ?\\n#+END_SRC\")

to something like

    (\"s\" . \"src\")

Please refer to the documentation of `org-structure-template-alist'.

The following entries must be updated:

%s"
	       (or checklist 'org-structure-template-alist)
	       (pp-to-string elm))))))

(defun org--insert-structure-template-mks ()
  "Present `org-structure-template-alist' with `org-mks'.

Menus are added if keys require more than one keystroke.  Tabs
are added to single key entries when more than one stroke is
needed.  Keys longer than two characters are reduced to two
characters."
  (org--check-org-structure-template-alist)
  (let* (case-fold-search
	 (templates (append org-structure-template-alist
			    '(("\t" . "Press TAB, RET or SPC to write block name"))))
         (keys (mapcar #'car templates))
         (start-letters
	  (delete-dups (mapcar (lambda (key) (substring key 0 1)) keys)))
	 ;; Sort each element of `org-structure-template-alist' into
	 ;; sublists according to the first letter.
         (superlist
	  (mapcar (lambda (letter)
                    (list letter
			  (cl-remove-if-not
			   (apply-partially #'string-match-p (concat "^" letter))
			   templates :key #'car)))
		  start-letters)))
    (org-mks
     (apply #'append
	    ;; Make an `org-mks' table.  If only one element is
	    ;; present in a sublist, make it part of the top-menu,
	    ;; otherwise make a submenu according to the starting
	    ;; letter and populate it.
	    (mapcar (lambda (sublist)
		      (if (eq 1 (length (cadr sublist)))
                          (mapcar (lambda (elm)
				    (list (substring (car elm) 0 1)
                                          (cdr elm) ""))
                                  (cadr sublist))
			;; Create submenu.
                        (let* ((topkey (car sublist))
			       (elms (cadr sublist))
			       (keys (mapcar #'car elms))
			       (long (> (length elms) 3)))
                          (append
			   (list
			    ;; Make a description of the submenu.
			    (list topkey
				  (concat
				   (mapconcat #'cdr
					      (cl-subseq elms 0 (if long 3 (length elms)))
					      ", ")
                                   (when long ", ..."))))
			   ;; List of entries in submenu.
			   (cl-mapcar #'list
				      (org--insert-structure-template-unique-keys keys)
				      (mapcar #'cdr elms)
				      (make-list (length elms) ""))))))
		    superlist))
     "Select a key\n============"
     "Key: ")))

(defun org--insert-structure-template-unique-keys (keys)
  "Make a list of unique, two characters long elements from KEYS.

Elements of length one have a tab appended.  Elements of length
two are kept as is.  Longer elements are truncated to length two.

If an element cannot be made unique, an error is raised."
  (let ((ordered-keys (cl-sort (copy-sequence keys) #'< :key #'length))
	menu-keys)
    (dolist (key ordered-keys)
      (let ((potential-key
	     (cl-case (length key)
	       (1 (concat key "\t"))
	       (2 key)
	       (otherwise
		(cl-find-if-not (lambda (k) (assoc k menu-keys))
				(mapcar (apply-partially #'concat (substring  key 0 1))
					(split-string (substring key 1) "" t)))))))
	(if (or (not potential-key) (assoc potential-key menu-keys))
            (user-error "Could not make unique key for `%s'" key)
	  (push (cons potential-key key) menu-keys))))
    (mapcar #'car
	    (cl-sort menu-keys #'<
		     :key (lambda (elm) (cl-position (cdr elm) keys))))))

(defun org-insert-structure-template (type)
  "Insert a block structure of the type #+begin_foo/#+end_foo.
Select a block from `org-structure-template-alist' then type
either RET, TAB or SPC to write the block type.  With an active
region, wrap the region in the block.  Otherwise, insert an empty
block.

When foo is written as FOO, upcase the #+BEGIN/END as well."
  (interactive
   (list (pcase (org--insert-structure-template-mks)
	   (`("\t" . ,_)
            (let ((type (read-string "Structure type: ")))
              (when (string-empty-p type) (user-error "Empty structure type"))
              type))
	   (`(,_ ,choice . ,_) choice))))
  (when (or (not (stringp type)) (string-empty-p type))
    (error "Invalid structure type: %S" type))
  (let* ((case-fold-search t) ; Make sure that matches are case-insensitive.
         (region? (use-region-p))
	 (region-start (and region? (region-beginning)))
	 (region-end (and region? (copy-marker (region-end))))
	 (extended? (string-match-p "\\`\\(src\\|export\\)\\'" type))
	 (verbatim? (string-match-p
		     (concat "\\`" (regexp-opt '("example" "export"
                                                "src" "comment")))
		     type))
         (upcase? (string= (car (split-string type))
                           (upcase (car (split-string type))))))
    (when region? (goto-char region-start))
    (let ((column (current-indentation)))
      (if (save-excursion (skip-chars-backward " \t") (bolp))
	  (forward-line 0)
	(insert "\n"))
      (save-excursion
	(indent-to column)
	(insert (format "#+%s_%s%s\n" (if upcase? "BEGIN" "begin") type (if extended? " " "")))
	(when region?
	  (when verbatim? (org-escape-code-in-region (point) region-end))
	  (goto-char region-end)
	  ;; Ignore empty lines at the end of the region.
	  (skip-chars-backward " \r\t\n")
	  (end-of-line))
	(unless (bolp) (insert "\n"))
	(indent-to column)
	(insert (format "#+%s_%s" (if upcase? "END" "end") (car (split-string type))))
	(if (looking-at "[ \t]*$") (replace-match "")
	  (insert "\n"))
	(when (and (eobp) (not (bolp))) (insert "\n")))
      (if extended? (end-of-line)
	(forward-line)
	(skip-chars-forward " \t")))))


;;;; TODO, DEADLINE, Comments

(defun org-toggle-comment ()
  "Change the COMMENT state of an entry."
  (interactive)
  (save-excursion
    (org-back-to-heading)
    (let ((case-fold-search nil))
      (looking-at org-complex-heading-regexp))
    (goto-char (or (match-end 3) (match-end 2) (match-end 1)))
    (skip-chars-forward " \t")
    (unless (memq (char-before) '(?\s ?\t)) (insert " "))
    (if (org-in-commented-heading-p t)
	(delete-region (point)
		       (progn (search-forward " " (line-end-position) 'move)
			      (skip-chars-forward " \t")
			      (point)))
      (insert org-comment-string)
      (unless (eolp) (insert " ")))))

(defvar org-last-todo-state-is-todo nil
  "This is non-nil when the last TODO state change led to a TODO state.
If the last change removed the TODO tag or switched to DONE, then
this is nil.")

(defvar org-todo-setup-filter-hook nil
  "Hook for functions that pre-filter todo specs.
Each function takes a todo spec and returns either nil or the spec
transformed into canonical form." )

(defvar org-todo-get-default-hook nil
  "Hook for functions that get a default item for todo.
Each function takes arguments (NEW-MARK OLD-MARK) and returns either
nil or a string to be used for the todo mark." )

(defvar org-agenda-headline-snapshot-before-repeat)

(defun org-current-effective-time ()
  "Return current time adjusted for `org-extend-today-until' variable."
  (let* ((ct (org-current-time))
	 (dct (decode-time ct))
	 (ct1
	  (cond
	   (org-use-last-clock-out-time-as-effective-time
	    (or (org-clock-get-last-clock-out-time) ct))
	   ((and org-use-effective-time (< (nth 2 dct) org-extend-today-until))
	    (org-encode-time 0 59 23 (1- (nth 3 dct)) (nth 4 dct) (nth 5 dct)))
	   (t ct))))
    ct1))

(defun org-todo-yesterday (&optional arg)
  "Like `org-todo' but the time of change will be 23:59 of yesterday."
  (interactive "P")
  (if (eq major-mode 'org-agenda-mode)
      (org-agenda-todo-yesterday arg)
    (let* ((org-use-effective-time t)
	   (hour (nth 2 (decode-time (org-current-time))))
	   (org-extend-today-until (1+ hour)))
      (org-todo arg))))

(defvar org-block-entry-blocking ""
  "First entry preventing the TODO state change.")

(defun org-cancel-repeater ()
  "Cancel a repeater by setting its numeric value to zero."
  (interactive)
  (save-excursion
    (org-back-to-heading t)
    (let ((bound1 (point))
	  (bound0 (save-excursion (outline-next-heading) (point))))
      (when (and (re-search-forward
		  (concat "\\(" org-scheduled-time-regexp "\\)\\|\\("
			  org-deadline-time-regexp "\\)\\|\\("
			  org-ts-regexp "\\)")
		  bound0 t)
		 (re-search-backward "[ \t]+\\(?:[.+]\\)?\\+\\([0-9]+\\)[hdwmy]"
				     bound1 t))
	(replace-match "0" t nil nil 1)))))

(defvar org-state)
;; FIXME: We should refactor this and similar dynamically scoped blocker flags.
(defvar org-blocked-by-checkboxes nil) ; dynamically scoped
(defun org-todo (&optional arg)
  "Change the TODO state of an item.

The state of an item is given by a keyword at the start of the heading,
like
     *** TODO Write paper
     *** DONE Call mom

The different keywords are specified in the variable `org-todo-keywords'.
By default the available states are \"TODO\" and \"DONE\".  So, for this
example: when the item starts with TODO, it is changed to DONE.
When it starts with DONE, the DONE is removed.  And when neither TODO nor
DONE are present, add TODO at the beginning of the heading.
You can set up single-character keys to fast-select the new state.  See the
`org-todo-keywords' and `org-use-fast-todo-selection' for details.

With `\\[universal-argument]' prefix ARG, force logging the state change \
and take a
logging note.
With a `\\[universal-argument] \\[universal-argument]' prefix, switch to the \
next set of TODO \
keywords (nextset).
Another way to achieve this is `S-C-<right>'.
With a `\\[universal-argument] \\[universal-argument] \\[universal-argument]' \
prefix, circumvent any state blocking.
With numeric prefix arg, switch to the Nth state.

With a numeric prefix arg of 0, inhibit note taking for the change.
With a numeric prefix arg of -1, cancel repeater to allow marking as DONE.

When called through ELisp, arg is also interpreted in the following way:
`none'        -> empty state
\"\"            -> switch to empty state
`done'        -> switch to DONE
`nextset'     -> switch to the next set of keywords
`previousset' -> switch to the previous set of keywords
\"WAITING\"     -> switch to the specified keyword, but only if it
                 really is a member of `org-todo-keywords'."
  (interactive "P")
  (if (and (org-region-active-p) org-loop-over-headlines-in-active-region)
      (let ((cl (if (eq org-loop-over-headlines-in-active-region 'start-level)
		    'region-start-level 'region))
	    org-loop-over-headlines-in-active-region)
	(org-map-entries
	 (lambda () (org-todo arg))
	 nil cl
	 (when (org-invisible-p) (org-end-of-subtree nil t))))
    (when (equal arg '(16)) (setq arg 'nextset))
    (when (equal (prefix-numeric-value arg) -1) (org-cancel-repeater) (setq arg nil))
    (when (< (prefix-numeric-value arg) -1) (user-error "Prefix argument %d not supported" arg))
    (let ((org-blocker-hook org-blocker-hook)
	  commentp
	  case-fold-search)
      (when (equal arg '(64))
	(setq arg nil org-blocker-hook nil))
      (when (and org-blocker-hook
		 (or org-inhibit-blocking
		     (org-entry-get nil "NOBLOCKING")))
	(setq org-blocker-hook nil))
      (save-excursion
	(catch 'exit
	  (org-back-to-heading t)
	  (when (org-in-commented-heading-p t)
	    (org-toggle-comment)
	    (setq commentp t))
	  (when (looking-at org-outline-regexp) (goto-char (1- (match-end 0))))
	  (or (looking-at (concat " +" org-todo-regexp "\\( +\\|[ \t]*$\\)"))
	      (looking-at "\\(?: *\\|[ \t]*$\\)"))
	  (let* ((match-data (match-data))
		 (startpos (copy-marker (line-beginning-position)))
		 (force-log (and  (equal arg '(4)) (prog1 t (setq arg nil))))
		 (logging (save-match-data (org-entry-get nil "LOGGING" t t)))
		 (org-log-done org-log-done)
		 (org-log-repeat org-log-repeat)
		 (org-todo-log-states org-todo-log-states)
		 (org-inhibit-logging
		  (if (equal arg 0)
		      (progn (setq arg nil) 'note) org-inhibit-logging))
		 (this (match-string 1))
		 (hl-pos (match-beginning 0))
		 (head (org-get-todo-sequence-head this))
		 (ass (assoc head org-todo-kwd-alist))
		 (interpret (nth 1 ass))
		 (done-word (nth 3 ass))
		 (final-done-word (nth 4 ass))
		 (org-last-state (or this ""))
		 (completion-ignore-case t)
		 (member (member this org-todo-keywords-1))
		 (tail (cdr member))
		 (org-state (cond
			     ((eq arg 'right)
			      ;; Next state
			      (if this
			          (if tail (car tail) nil)
			        (car org-todo-keywords-1)))
			     ((eq arg 'left)
			      ;; Previous state
			      (unless (equal member org-todo-keywords-1)
			        (if this
				    (nth (- (length org-todo-keywords-1)
					    (length tail) 2)
				         org-todo-keywords-1)
			          (org-last org-todo-keywords-1))))
			     (arg
			      ;; User or caller requests a specific state.
			      (cond
			       ((equal arg "") nil)
			       ((eq arg 'none) nil)
			       ((eq arg 'done) (or done-word (car org-done-keywords)))
			       ((eq arg 'nextset)
			        (or (car (cdr (member head org-todo-heads)))
				    (car org-todo-heads)))
			       ((eq arg 'previousset)
			        (let ((org-todo-heads (reverse org-todo-heads)))
			          (or (car (cdr (member head org-todo-heads)))
				      (car org-todo-heads))))
			       ((car (member arg org-todo-keywords-1)))
			       ((stringp arg)
			        (user-error "State `%s' not valid in this file" arg))
			       ((nth (1- (prefix-numeric-value arg))
				     org-todo-keywords-1))))
			     ((and org-todo-key-trigger org-use-fast-todo-selection)
			      ;; Use fast selection.
			      (org-fast-todo-selection this))
			     ((null member) (or head (car org-todo-keywords-1)))
			     ((equal this final-done-word) nil) ;-> make empty
			     ((null tail) nil) ;-> first entry
			     ((memq interpret '(type priority))
			      (if (eq this-command last-command)
			          (car tail)
			        (if (> (length tail) 0)
				    (or done-word (car org-done-keywords))
			          nil)))
			     (t
			      (car tail))))
		 (org-state (or
			     (run-hook-with-args-until-success
			      'org-todo-get-default-hook org-state org-last-state)
			     org-state))
		 (next (if (org-string-nw-p org-state) (concat " " org-state " ") " "))
		 (change-plist (list :type 'todo-state-change :from this :to org-state
				     :position startpos))
		 dolog now-done-p)
	    (when org-blocker-hook
	      (let (org-blocked-by-checkboxes block-reason)
		(setq org-last-todo-state-is-todo
		      (not (member this org-done-keywords)))
		(unless (save-excursion
			  (save-match-data
			    (org-with-wide-buffer
			     (run-hook-with-args-until-failure
			      'org-blocker-hook change-plist))))
		  (setq block-reason (if org-blocked-by-checkboxes
					 "contained checkboxes"
				       (format "\"%s\"" org-block-entry-blocking)))
		  (if (called-interactively-p 'interactive)
		      (user-error "TODO state change from %s to %s blocked (by %s)"
				  this org-state block-reason)
		    ;; Fail silently.
		    (message "TODO state change from %s to %s blocked (by %s)"
			     this org-state block-reason)
		    (throw 'exit nil)))))
	    (store-match-data match-data)
            (org-fold-core-ignore-modifications
              (goto-char (match-beginning 0))
              (replace-match "")
              ;; We need to use `insert-before-markers-and-inherit'
              ;; because: (1) We want to preserve the folding state
              ;; text properties; (2) We do not want to make point
              ;; move before new todo state when inserting a new todo
              ;; into an empty heading.  In (2), the above
              ;; `save-excursion' is relying on markers saved before.
              (insert-before-markers-and-inherit next)
              (unless (org-invisible-p (line-beginning-position))
                (org-fold-region (line-beginning-position)
                                 (line-end-position)
                                 nil 'outline)))
	    (cond ((and org-state (equal this org-state))
		   (message "TODO state was already %s" (org-trim next)))
		  ((not (pos-visible-in-window-p hl-pos))
		   (message "TODO state changed to %s" (org-trim next))))
	    (unless head
	      (setq head (org-get-todo-sequence-head org-state)
		    ass (assoc head org-todo-kwd-alist)
		    interpret (nth 1 ass)
		    done-word (nth 3 ass)
		    final-done-word (nth 4 ass)))
	    (when (memq arg '(nextset previousset))
	      (message "Keyword-Set %d/%d: %s"
		       (- (length org-todo-sets) -1
			  (length (memq (assoc org-state org-todo-sets) org-todo-sets)))
		       (length org-todo-sets)
		       (mapconcat 'identity (assoc org-state org-todo-sets) " ")))
	    (setq org-last-todo-state-is-todo
		  (not (member org-state org-done-keywords)))
	    (setq now-done-p (and (member org-state org-done-keywords)
				  (not (member this org-done-keywords))))
	    (and logging (org-local-logging logging))
	    (when (or (and (or org-todo-log-states org-log-done)
			   (not (eq org-inhibit-logging t))
			   (not (memq arg '(nextset previousset))))
		      force-log)
	      ;; We need to look at recording a time and note.
	      (setq dolog (or (if force-log 'note)
			      (nth 1 (assoc org-state org-todo-log-states))
			      (nth 2 (assoc this org-todo-log-states))))
	      (when (and (eq dolog 'note) (eq org-inhibit-logging 'note))
		(setq dolog 'time))
	      (when (or (and (not org-state) (not org-closed-keep-when-no-todo))
			(and org-state
			     (member org-state org-not-done-keywords)
			     (not (member this org-not-done-keywords))))
		;; This is now a todo state and was not one before
		;; If there was a CLOSED time stamp, get rid of it.
		(org-add-planning-info nil nil 'closed))
	      (when (and now-done-p org-log-done)
		;; It is now done, and it was not done before.
		(org-add-planning-info 'closed (org-current-effective-time))
		(when (and (not dolog) (eq 'note org-log-done))
		  (org-add-log-setup 'done org-state this 'note)))
	      (when (and org-state dolog)
		;; This is a non-nil state, and we need to log it.
		(org-add-log-setup 'state org-state this dolog)))
	    ;; Fixup tag positioning.
	    (org-todo-trigger-tag-changes org-state)
	    (when org-auto-align-tags (org-align-tags))
	    (when org-provide-todo-statistics
	      (org-update-parent-todo-statistics))
	    (when (bound-and-true-p org-clock-out-when-done)
	      (org-clock-out-if-current))
	    (run-hooks 'org-after-todo-state-change-hook)
	    (when (and arg (not (member org-state org-done-keywords)))
	      (setq head (org-get-todo-sequence-head org-state)))
            (put-text-property (line-beginning-position)
                               (line-end-position) 'org-todo-head head)
	    ;; Do we need to trigger a repeat?
	    (when now-done-p
	      (when (boundp 'org-agenda-headline-snapshot-before-repeat)
		;; This is for the agenda, take a snapshot of the headline.
		(save-match-data
		  (setq org-agenda-headline-snapshot-before-repeat
			(org-get-heading))))
	      (org-auto-repeat-maybe org-state))
	    ;; Fixup cursor location if close to the keyword.
	    (when (and (outline-on-heading-p)
		       (not (bolp))
		       (save-excursion
                         (forward-line 0)
			 (looking-at org-todo-line-regexp))
		       (< (point) (+ 2 (or (match-end 2) (match-end 1)))))
	      (goto-char (or (match-end 2) (match-end 1)))
	      (and (looking-at " ")
		   (not (looking-at " *:"))
		   (just-one-space)))
	    (when org-trigger-hook
	      (save-excursion
		(run-hook-with-args 'org-trigger-hook change-plist)))
	    (when commentp (org-toggle-comment))))))))

(defun org-block-todo-from-children-or-siblings-or-parent (change-plist)
  "Block turning an entry into a TODO, using the hierarchy.
This checks whether the current task should be blocked from state
changes.  Such blocking occurs when:

  1. The task has children which are not all in a completed state.

  2. A task has a parent with the property :ORDERED:, and there
     are siblings prior to the current task with incomplete
     status.

  3. The parent of the task is blocked because it has siblings that should
     be done first, or is child of a block grandparent TODO entry."

  (if (not org-enforce-todo-dependencies)
      t ; if locally turned off don't block
    (catch 'dont-block
      ;; If this is not a todo state change, or if this entry is already DONE,
      ;; do not block
      (when (or (not (eq (plist-get change-plist :type) 'todo-state-change))
		(member (plist-get change-plist :from)
			(cons 'done org-done-keywords))
		(member (plist-get change-plist :to)
			(cons 'todo org-not-done-keywords))
		(not (plist-get change-plist :to)))
	(throw 'dont-block t))
      ;; If this task has children, and any are undone, it's blocked
      (save-excursion
	(org-back-to-heading t)
	(let ((this-level (funcall outline-level)))
	  (outline-next-heading)
	  (let ((child-level (funcall outline-level)))
	    (while (and (not (eobp))
			(> child-level this-level))
	      ;; this todo has children, check whether they are all
	      ;; completed
	      (when (and (not (org-entry-is-done-p))
			 (org-entry-is-todo-p))
		(setq org-block-entry-blocking (org-get-heading))
		(throw 'dont-block nil))
	      (outline-next-heading)
	      (setq child-level (funcall outline-level))))))
      ;; Otherwise, if the task's parent has the :ORDERED: property, and
      ;; any previous siblings are undone, it's blocked
      (save-excursion
	(org-back-to-heading t)
	(let* ((pos (point))
	       (parent-pos (and (org-up-heading-safe) (point)))
	       (case-fold-search nil))
	  (unless parent-pos (throw 'dont-block t)) ; no parent
	  (when (and (org-not-nil (org-entry-get (point) "ORDERED"))
		     (forward-line 1)
		     (re-search-forward org-not-done-heading-regexp pos t))
	    (setq org-block-entry-blocking (match-string 0))
	    (throw 'dont-block nil))  ; block, there is an older sibling not done.
	  ;; Search further up the hierarchy, to see if an ancestor is blocked
	  (while t
	    (goto-char parent-pos)
	    (unless (looking-at org-not-done-heading-regexp)
	      (throw 'dont-block t))	; do not block, parent is not a TODO
	    (setq pos (point))
	    (setq parent-pos (and (org-up-heading-safe) (point)))
	    (unless parent-pos (throw 'dont-block t)) ; no parent
	    (when (and (org-not-nil (org-entry-get (point) "ORDERED"))
		       (forward-line 1)
		       (re-search-forward org-not-done-heading-regexp pos t)
		       (setq org-block-entry-blocking (org-get-heading)))
	      (throw 'dont-block nil)))))))) ; block, older sibling not done.

(defcustom org-track-ordered-property-with-tag nil
  "Should the ORDERED property also be shown as a tag?
The ORDERED property decides if an entry should require subtasks to be
completed in sequence.  Since a property is not very visible, setting
this option means that toggling the ORDERED property with the command
`org-toggle-ordered-property' will also toggle a tag ORDERED.  That tag is
not relevant for the behavior, but it makes things more visible.

Note that toggling the tag with tags commands will not change the property
and therefore not influence behavior!

This can be t, meaning the tag ORDERED should be used.  It can also be a
string to select a different tag for this task."
  :group 'org-todo
  :type '(choice
	  (const :tag "No tracking" nil)
	  (const :tag "Track with ORDERED tag" t)
	  (string :tag "Use other tag")))

(defun org-toggle-ordered-property ()
  "Toggle the ORDERED property of the current entry.
For better visibility, you can track the value of this property with a tag.
See variable `org-track-ordered-property-with-tag'."
  (interactive)
  (let* ((t1 org-track-ordered-property-with-tag)
	 (tag (and t1 (if (stringp t1) t1 "ORDERED"))))
    (save-excursion
      (org-back-to-heading)
      (if (org-entry-get nil "ORDERED")
	  (progn
	    (org-delete-property "ORDERED")
	    (and tag (org-toggle-tag tag 'off))
	    (message "Subtasks can be completed in arbitrary order"))
	(org-entry-put nil "ORDERED" "t")
	(and tag (org-toggle-tag tag 'on))
	(message "Subtasks must be completed in sequence")))))

(defun org-block-todo-from-checkboxes (change-plist)
  "Block turning an entry into a TODO, using checkboxes.
This checks whether the current task should be blocked from state
changes because there are unchecked boxes in this entry."
  (if (not org-enforce-todo-checkbox-dependencies)
      t ; if locally turned off don't block
    (catch 'dont-block
      ;; If this is not a todo state change, or if this entry is already DONE,
      ;; do not block
      (when (or (not (eq (plist-get change-plist :type) 'todo-state-change))
		(member (plist-get change-plist :from)
			(cons 'done org-done-keywords))
		(member (plist-get change-plist :to)
			(cons 'todo org-not-done-keywords))
		(not (plist-get change-plist :to)))
	(throw 'dont-block t))
      ;; If this task has checkboxes that are not checked, it's blocked
      (save-excursion
	(org-back-to-heading t)
	(let ((beg (point)) end)
	  (outline-next-heading)
	  (setq end (point))
	  (goto-char beg)
	  (when (org-list-search-forward
		 (concat (org-item-beginning-re)
			 "\\(?:\\[@\\(?:start:\\)?\\([0-9]+\\|[A-Za-z]\\)\\][ \t]*\\)?"
			 "\\[[- ]\\]")
		 end t)
	    (when (boundp 'org-blocked-by-checkboxes)
	      (setq org-blocked-by-checkboxes t))
	    (throw 'dont-block nil))))
      t))) ; do not block

(defun org-entry-blocked-p ()
  "Non-nil if entry at point is blocked."
  (and (not (org-entry-get nil "NOBLOCKING"))
       (member (org-entry-get nil "TODO") org-not-done-keywords)
       (not (run-hook-with-args-until-failure
	     'org-blocker-hook
	     (list :type 'todo-state-change
		   :position (point)
		   :from 'todo
		   :to 'done)))))

(defun org-update-statistics-cookies (all)
  "Update the statistics cookie, either from TODO or from checkboxes.
This should be called with the cursor in a line with a statistics
cookie.  When called with a \\[universal-argument] prefix, update
all statistics cookies in the buffer."
  (interactive "P")
  (if all
      (progn
	(org-update-checkbox-count 'all)
	(org-map-region 'org-update-parent-todo-statistics
                        (point-min) (point-max)))
    (if (not (org-at-heading-p))
	(org-update-checkbox-count)
      (let ((pos (point-marker))
	    end l1 l2)
	(ignore-errors (org-back-to-heading t))
	(if (not (org-at-heading-p))
	    (org-update-checkbox-count)
	  (setq l1 (org-outline-level))
	  (setq end
                (save-excursion
		  (outline-next-heading)
		  (when (org-at-heading-p) (setq l2 (org-outline-level)))
		  (point)))
	  (if (and (save-excursion
		     (re-search-forward
		      "^[ \t]*\\([-+*]\\|[0-9]+[.)]\\) \\[[- X]\\]" end t))
	           (not (save-excursion
                        (re-search-forward
			 ":COOKIE_DATA:.*\\<todo\\>" end t))))
	      (org-update-checkbox-count)
	    (if (and l2 (> l2 l1))
		(progn
		  (goto-char end)
		  (org-update-parent-todo-statistics))
	      (goto-char pos)
	      (forward-line 0)
	      (while (re-search-forward
		      "\\(\\(\\[[0-9]*%\\]\\)\\|\\(\\[[0-9]*/[0-9]*\\]\\)\\)"
                      (line-end-position) t)
		(replace-match (if (match-end 2) "[100%]" "[0/0]") t t)))))
	(goto-char pos)
	(move-marker pos nil)))))

(defvar org-entry-property-inherited-from) ;; defined below
(defun org-update-parent-todo-statistics ()
  "Update any statistics cookie in the parent of the current headline.
When `org-hierarchical-todo-statistics' is nil, statistics will cover
the entire subtree and this will travel up the hierarchy and update
statistics everywhere."
  (let* ((prop (save-excursion
                 (org-up-heading-safe)
		 (org-entry-get nil "COOKIE_DATA" 'inherit)))
	 (recursive (or (not org-hierarchical-todo-statistics)
			(and prop (string-match "\\<recursive\\>" prop))))
	 (lim (or (and prop (marker-position org-entry-property-inherited-from))
		  0))
	 (first t)
	 (box-re "\\(\\(\\[[0-9]*%\\]\\)\\|\\(\\[[0-9]*/[0-9]*\\]\\)\\)")
	 level ltoggle l1 new ndel
	 (cnt-all 0) (cnt-done 0) is-percent kwd
	 checkbox-beg cookie-present)
    (catch 'exit
      (save-excursion
	(forward-line 0)
	(setq ltoggle (funcall outline-level))
	;; Three situations are to consider:

	;; 1. if `org-hierarchical-todo-statistics' is nil, repeat up
	;;    to the top-level ancestor on the headline;

	;; 2. If parent has "recursive" property, repeat up to the
	;;    headline setting that property, taking inheritance into
	;;    account;

	;; 3. Else, move up to direct parent and proceed only once.
	(while (and (setq level (org-up-heading-safe))
		    (or recursive first)
		    (>= (point) lim))
	  (setq first nil cookie-present nil)
	  (unless (and level
		       (not (string-match
			   "\\<checkbox\\>"
			   (downcase (or (org-entry-get nil "COOKIE_DATA")
					 "")))))
	    (throw 'exit nil))
          (while (re-search-forward box-re (line-end-position) t)
	    (setq cnt-all 0 cnt-done 0 cookie-present t)
	    (setq is-percent (match-end 2) checkbox-beg (match-beginning 0))
            (when (org-element-type-p
                   (save-excursion
                     (goto-char checkbox-beg)
                     (save-match-data (org-element-context)))
                   '(statistics-cookie
                     ;; Special case - statistics cookie inside properties.
                     keyword))
	      (save-match-data
	        (unless (outline-next-heading) (throw 'exit nil))
	        (while (and (looking-at org-complex-heading-regexp)
	    		    (> (setq l1 (length (match-string 1))) level))
	    	  (setq kwd (and (or recursive (= l1 ltoggle))
	    		         (match-string 2)))
	    	  (if (or (eq org-provide-todo-statistics 'all-headlines)
			  (and (eq org-provide-todo-statistics t)
			       (or (member kwd org-done-keywords)))
	    		  (and (listp org-provide-todo-statistics)
			       (stringp (car org-provide-todo-statistics))
	    		       (or (member kwd org-provide-todo-statistics)
				   (member kwd org-done-keywords)))
			  (and (listp org-provide-todo-statistics)
			       (listp (car org-provide-todo-statistics))
			       (or (member kwd (car org-provide-todo-statistics))
				   (and (member kwd org-done-keywords)
				        (member kwd (cadr org-provide-todo-statistics))))))
	    	      (setq cnt-all (1+ cnt-all))
		    (and (eq org-provide-todo-statistics t)
		         kwd
		         (setq cnt-all (1+ cnt-all))))
		  (when (or (and (member org-provide-todo-statistics '(t all-headlines))
			         (member kwd org-done-keywords))
			    (and (listp org-provide-todo-statistics)
			         (listp (car org-provide-todo-statistics))
			         (member kwd org-done-keywords)
			         (member kwd (cadr org-provide-todo-statistics)))
			    (and (listp org-provide-todo-statistics)
			         (stringp (car org-provide-todo-statistics))
			         (member kwd org-done-keywords)))
		    (setq cnt-done (1+ cnt-done)))
	    	  (outline-next-heading)))
	      (setq new
	    	    (if is-percent
		        (format "[%d%%]" (floor (* 100.0 cnt-done)
					        (max 1 cnt-all)))
	    	      (format "[%d/%d]" cnt-done cnt-all))
	    	    ndel (- (match-end 0) checkbox-beg))
              (goto-char (match-end 0))
              (unless (string-equal new (buffer-substring checkbox-beg (match-end 0)))
	        (goto-char checkbox-beg)
	        (insert new)
	        (delete-region (point) (+ (point) ndel))
	        (when org-auto-align-tags (org-fix-tags-on-the-fly)))))
	  (when cookie-present
	    (run-hook-with-args 'org-after-todo-statistics-hook
				cnt-done (- cnt-all cnt-done))))))
    (run-hooks 'org-todo-statistics-hook)))

(defvar org-after-todo-statistics-hook nil
  "Hook that is called after a TODO statistics cookie has been updated.
Each function is called with two arguments: the number of not-done entries
and the number of done entries.

For example, the following function, when added to this hook, will switch
an entry to DONE when all children are done, and back to TODO when new
entries are set to a TODO status.  Note that this hook is only called
when there is a statistics cookie in the headline!

 (defun org-summary-todo (n-done n-not-done)
   \"Switch entry to DONE when all subentries are done, to TODO otherwise.\"
   (let (org-log-done org-todo-log-states)   ; turn off logging
     (org-todo (if (= n-not-done 0) \"DONE\" \"TODO\"))))")

(defvar org-todo-statistics-hook nil
  "Hook that is run whenever Org thinks TODO statistics should be updated.
This hook runs even if there is no statistics cookie present, in which case
`org-after-todo-statistics-hook' would not run.")

(defun org-todo-trigger-tag-changes (state)
  "Apply the changes defined in `org-todo-state-tags-triggers'."
  (let ((l org-todo-state-tags-triggers)
	changes)
    (when (or (not state) (equal state ""))
      (setq changes (append changes (cdr (assoc "" l)))))
    (when (and (stringp state) (> (length state) 0))
      (setq changes (append changes (cdr (assoc state l)))))
    (when (member state org-not-done-keywords)
      (setq changes (append changes (cdr (assq 'todo l)))))
    (when (member state org-done-keywords)
      (setq changes (append changes (cdr (assq 'done l)))))
    (dolist (c changes)
      (org-toggle-tag (car c) (if (cdr c) 'on 'off)))))

(defun org-local-logging (value)
  "Get logging settings from a property VALUE."
  ;; Directly set the variables, they are already local.
  (setq org-log-done nil
        org-log-repeat nil
        org-todo-log-states nil)
  (dolist (w (split-string value))
    (let (a)
      (cond
       ((setq a (assoc w org-startup-options))
        (and (member (nth 1 a) '(org-log-done org-log-repeat))
             (set (nth 1 a) (nth 2 a))))
       ((setq a (org-extract-log-state-settings w))
        (and (member (car a) org-todo-keywords-1)
             (push a org-todo-log-states)))))))

(defun org-get-todo-sequence-head (kwd)
  "Return the head of the TODO sequence to which KWD belongs.
If KWD is not set, check if there is a text property remembering the
right sequence."
  (let (p)
    (cond
     ((not kwd)
      (or (get-text-property (line-beginning-position) 'org-todo-head)
	  (progn
            (setq p (next-single-property-change (line-beginning-position)
                                                 'org-todo-head
                                                 nil (line-end-position)))
	    (get-text-property p 'org-todo-head))))
     ((not (member kwd org-todo-keywords-1))
      (car org-todo-keywords-1))
     (t (nth 2 (assoc kwd org-todo-kwd-alist))))))

(defun org-fast-todo-selection (&optional current-todo-keyword)
  "Fast TODO keyword selection with single keys.
Returns the new TODO keyword, or nil if no state change should occur.

When CURRENT-TODO-KEYWORD is given and selection letters are not
unique globally, prefer a state in the current todo keyword sequence
where CURRENT-TODO-KEYWORD belongs over on in another sequence."
  (let* ((todo-alist org-todo-key-alist) ; copy from the original Org buffer.
         (todo-alist-tail todo-alist)
         ;; TODO keyword sequence that takes priority in case if there is binding collision.
	 (preferred-sequence-head (org-get-todo-sequence-head current-todo-keyword))
         in-preferred-sequence preferred-todo-alist
	 (done-keywords org-done-keywords) ;; needed for the faces when calling `org-get-todo-face'.
	 (expert-interface (equal org-use-fast-todo-selection 'expert))
	 (prompt "") ; Additional expert prompt, listing todo keyword bindings.
         ;; Max width occupied by a single todo record in the completion buffer.
         (field-width
          (+ 3 ; keep space for "[c]" binding.
             1 ; ensure that there is at least one space between adjacent todo fields.
             3 ; FIXME: likely coped from `org-fast-tag-selection'
             ;; The longest todo keyword.
             (apply 'max (mapcar
			  (lambda (x)
			    (if (stringp (car x)) (string-width (car x)) 0))
			  org-todo-key-alist))))
         field-number ; current todo keyword column in the completion buffer.
         todo-binding-spec todo-keyword todo-char input-char)
    ;; Display todo selection dialogue, read the user input, and return.
    (save-excursion
      (save-window-excursion
        ;; Select todo keyword list buffer, and display it unless EXPERT-INTERFACE.
	(if expert-interface
	    (set-buffer (get-buffer-create " *Org todo*"))
	  (delete-other-windows)
	  (set-window-buffer (split-window-vertically) (get-buffer-create " *Org todo*"))
	  (switch-to-buffer-other-window " *Org todo*"))
        ;; Fill text in *Org todo* buffer.
	(erase-buffer)
        ;; Copy `org-done-keywords' from the original Org buffer to be
        ;; used by `org-get-todo-face'.
	(setq-local org-done-keywords done-keywords)
        ;; Show todo keyword sequences and bindings in a grid.
        ;; Each todo keyword in the grid occupies FIELD-WIDTH characters.
        ;; The keywords are filled up to `window-width'.
	(setq field-number 0)
	(while (setq todo-binding-spec (pop todo-alist-tail))
	  (pcase todo-binding-spec
            ;; Group keywords as { KWD1 KWD2 ... }
	    (`(:startgroup)
	     (unless (= field-number 0)
	       (setq field-number 0)
	       (insert "\n"))
	     (setq prompt (concat prompt "{"))
	     (insert "{ "))
	    (`(:endgroup)
	     (setq field-number 0
                   ;; End of a group.  Reset flag indicating preferred keyword sequence.
                   in-preferred-sequence nil)
	     (setq prompt (concat prompt "}"))
	     (insert "}\n"))
	    (`(:newline)
	     (unless (= field-number 0)
	       (insert "\n")
	       (setq field-number 0)
	       (setq todo-binding-spec (car todo-alist-tail))
	       (while (equal (car todo-alist-tail) '(:newline))
		 (insert "\n")
		 (pop todo-alist-tail))))
	    (_
	     (setq todo-keyword (car todo-binding-spec)
                   todo-char (cdr todo-binding-spec))
             ;; For the first keyword in a preferred sequence, set flag.
	     (if (equal todo-keyword preferred-sequence-head)
                 (setq in-preferred-sequence t))
             ;; Store the preferred todo keyword sequence.
	     (when in-preferred-sequence (push todo-binding-spec preferred-todo-alist))
             ;; Assign face to the todo keyword.
	     (setq todo-keyword
                   (org-add-props
                       todo-keyword nil
                     'face (org-get-todo-face todo-keyword)))
	     (when (= field-number 0) (insert "  "))
	     (setq prompt (concat prompt "[" (char-to-string todo-char) "] " todo-keyword " "))
	     (insert "[" todo-char "] " todo-keyword
                     ;; Fill spaces up to FIELD-WIDTH.
                     (make-string
		      (- field-width 4 (length todo-keyword)) ?\ ))
             ;; Last column in the row.
	     (when (and (= (setq field-number (1+ field-number))
                           (/ (- (window-width) 4) field-width))
		        ;; Avoid lines with just a closing delimiter.
		        (not (equal (car todo-alist-tail) '(:endgroup))))
	       (insert "\n")
	       (setq field-number 0)))))
	(insert "\n")
	(goto-char (point-min))
	(unless expert-interface (org-fit-window-to-buffer))
	(message (concat "[a-z..]:Set [SPC]:clear"
			 (if expert-interface (concat "\n" prompt) "")))
        ;; Read the todo keyword input and exit.
	(setq input-char
              (let ((inhibit-quit t)) ; intercept C-g.
                (read-char-exclusive)))
        ;; Restore the original keyword order.  Previously, it was reversed using `push'.
	(setq preferred-todo-alist (nreverse preferred-todo-alist))
	(cond
	 ((equal input-char ?\s) nil)
         ((or (= input-char ?\C-g)
	      (and (= input-char ?q) (not (rassoc input-char todo-alist))))
          (signal 'quit nil))
	 ((setq todo-binding-spec (or
                                   ;; Prefer bindings from todo sequence containing CURRENT-TODO-KEYWORD.
                                   (rassoc input-char preferred-todo-alist)
                                   (rassoc input-char todo-alist))
	        todo-keyword (car todo-binding-spec))
	  todo-keyword)
         (t (signal 'quit nil)))))))

(defun org-entry-is-todo-p ()
  (member (org-get-todo-state) org-not-done-keywords))

(defun org-entry-is-done-p ()
  (member (org-get-todo-state) org-done-keywords))

(defun org-get-todo-state ()
  "Return the TODO keyword of the current subtree."
  (save-excursion
    (org-back-to-heading t)
    (and (let ((case-fold-search nil))
           (looking-at org-todo-line-regexp))
	 (match-end 2)
	 (match-string 2))))

(defun org-at-date-range-p (&optional inactive-ok)
  "Non-nil if point is inside a date range.

When optional argument INACTIVE-OK is non-nil, also consider
inactive time ranges.

When this function returns a non-nil value, match data is set
according to `org-tr-regexp-both' or `org-tr-regexp', depending
on INACTIVE-OK."
  (save-excursion
    (catch 'exit
      (let ((pos (point)))
	(skip-chars-backward "^[<\r\n")
	(skip-chars-backward "<[")
	(and (looking-at (if inactive-ok org-tr-regexp-both org-tr-regexp))
	     (>= (match-end 0) pos)
	     (throw 'exit t))
	(skip-chars-backward "^<[\r\n")
	(skip-chars-backward "<[")
	(and (looking-at (if inactive-ok org-tr-regexp-both org-tr-regexp))
	     (>= (match-end 0) pos)
	     (throw 'exit t)))
      nil)))

(defun org-get-repeat (&optional timestamp)
  "Check if there is a timestamp with repeater in this entry.

Return the repeater, as a string, or nil.  Also return nil when
this function is called before first heading.

When optional argument TIMESTAMP is a string, extract the
repeater from there instead."
  (save-match-data
    (cond
     (timestamp
      (and (string-match org-repeat-re timestamp)
	   (match-string-no-properties 1 timestamp)))
     ((org-before-first-heading-p) nil)
     (t
      (save-excursion
	(org-back-to-heading t)
	(let ((end (org-entry-end-position)))
	  (catch :repeat
	    (while (re-search-forward org-repeat-re end t)
	      (when (save-match-data (org-at-timestamp-p 'agenda))
		(throw :repeat (match-string-no-properties 1)))))))))))

(defvar org-last-changed-timestamp)
(defvar org-last-inserted-timestamp)
(defvar org-log-post-message)
(defvar org-log-note-purpose)
(defvar org-log-note-how nil)
(defvar org-log-note-extra)
(defvar org-log-setup nil)
(defun org-auto-repeat-maybe (done-word)
  "Check if the current headline contains a repeated timestamp.

If yes, set TODO state back to what it was and change the base date
of repeating deadline/scheduled time stamps to new date.

This function is run automatically after each state change to a DONE state."
  (let* ((repeat (org-get-repeat))
	 (aa (assoc org-last-state org-todo-kwd-alist))
	 (interpret (nth 1 aa))
	 (head (nth 2 aa))
	 (whata '(("h" . hour) ("d" . day) ("m" . month) ("y" . year)))
	 (msg "Entry repeats: ")
	 (org-log-done nil)
	 (org-todo-log-states nil)
	 (end (copy-marker (org-entry-end-position))))
    (when (and repeat (not (= 0 (string-to-number (substring repeat 1)))))
      (when (eq org-log-repeat t) (setq org-log-repeat 'state))
      (let ((to-state
             (or (org-entry-get nil "REPEAT_TO_STATE" 'selective)
		 (and (stringp org-todo-repeat-to-state)
		      org-todo-repeat-to-state)
		 (and org-todo-repeat-to-state org-last-state))))
	(org-todo (cond ((and to-state (member to-state org-todo-keywords-1))
			 to-state)
			((eq interpret 'type) org-last-state)
			(head)
			(t 'none))))
      (org-back-to-heading t)
      (org-add-planning-info nil nil 'closed)
      ;; When `org-log-repeat' is non-nil or entry contains
      ;; a clock, set LAST_REPEAT property.
      (when (or org-log-repeat
		(catch :clock
		  (save-excursion
		    (while (re-search-forward org-clock-line-re end t)
		      (when (org-at-clock-log-p) (throw :clock t))))))
	(org-entry-put nil "LAST_REPEAT" (format-time-string
					  (org-time-stamp-format t t)
                                          (org-current-effective-time))))
      (when org-log-repeat
	(if org-log-setup
	    ;; We are already setup for some record.
	    (when (eq org-log-repeat 'note)
	      ;; Make sure we take a note, not only a time stamp.
	      (setq org-log-note-how 'note))
	  ;; Set up for taking a record.
	  (org-add-log-setup 'state
			     (or done-word (car org-done-keywords))
			     org-last-state
			     org-log-repeat)))
      ;; Timestamps without a repeater are usually skipped.  However,
      ;; a SCHEDULED timestamp without one is removed, as they are no
      ;; longer relevant.
      (save-excursion
	(let ((scheduled (org-entry-get (point) "SCHEDULED")))
	  (when (and scheduled (not (string-match-p org-repeat-re scheduled)))
	    (org-remove-timestamp-with-keyword org-scheduled-string))))
      ;; Update every timestamp with a repeater in the entry.
      (let ((planning-re (regexp-opt
			  (list org-scheduled-string org-deadline-string))))
	(while (re-search-forward org-repeat-re end t)
	  (let* ((ts (match-string 0))
		 (type (if (not (org-at-planning-p)) "Plain:"
			 (save-excursion
			   (re-search-backward
			    planning-re (line-beginning-position) t)
			   (match-string 0)))))
	    (when (and (org-at-timestamp-p 'agenda)
		       (string-match "\\([.+]\\)?\\(\\+[0-9]+\\)\\([hdwmy]\\)" ts))
	      (let ((n (string-to-number (match-string 2 ts)))
		    (what (match-string 3 ts)))
		(when (equal what "w") (setq n (* n 7) what "d"))
		(when (and (equal what "h")
			   (not (string-match-p "[0-9]\\{1,2\\}:[0-9]\\{2\\}"
						ts)))
		  (user-error
		   "Cannot repeat in %d hour(s) because no hour has been set"
		   n))
		;; Preparation, see if we need to modify the start
		;; date for the change.
		(when (match-end 1)
		  (let ((time (save-match-data (org-time-string-to-time ts)))
			(repeater-type (match-string 1 ts)))
		    (cond
		     ((equal "." repeater-type)
		      ;; Shift starting date to today, or now if
		      ;; repeater is by hours.
		      (if (equal what "h")
			  (org-timestamp-change
			   (floor (- (org-timestamp-to-now ts t)) 60) 'minute)
			(org-timestamp-change
			 (- (org-today) (time-to-days time)) 'day)))
		     ((equal "+" repeater-type)
		      (let ((nshiftmax 10)
			    (nshift 0))
			(while (or (= nshift 0)
				   (if (equal what "h")
				       (not (time-less-p nil time))
				     (>= (org-today)
					 (time-to-days time))))
			  (when (= nshiftmax (cl-incf nshift))
			    (or (y-or-n-p
				 (format "%d repeater intervals were not \
enough to shift date past today.  Continue? "
					 nshift))
				(user-error "Abort")))
			  (org-timestamp-change n (cdr (assoc what whata)))
			  (org-in-regexp org-ts-regexp3)
			  (setq ts (match-string 1))
			  (setq time
				(save-match-data
				  (org-time-string-to-time ts)))))
		      (org-timestamp-change (- n) (cdr (assoc what whata)))
		      ;; Rematch, so that we have everything in place
		      ;; for the real shift.
		      (org-in-regexp org-ts-regexp3)
		      (setq ts (match-string 1))
		      (string-match "\\([.+]\\)?\\(\\+[0-9]+\\)\\([hdwmy]\\)"
				    ts)))))
		(save-excursion
		  (org-timestamp-change n (cdr (assoc what whata)) nil t))
		(setq msg
		      (concat msg type " " org-last-changed-timestamp " ")))))))
      (run-hooks 'org-todo-repeat-hook)
      (setq org-log-post-message msg)
      (message msg))))

(defun org-show-todo-tree (arg)
  "Make a compact tree which shows all headlines marked with TODO.
The tree will show the lines where the regexp matches, and all higher
headlines above the match.
With a `\\[universal-argument]' prefix, prompt for a regexp to match.
With a numeric prefix N, construct a sparse tree for the Nth element
of `org-todo-keywords-1'."
  (interactive "P")
  (let ((case-fold-search nil)
	(kwd-re
	 (cond ((null arg) (concat org-not-done-regexp "\\s-"))
	       ((equal arg '(4))
		(let ((kwd
		       (completing-read "Keyword (or KWD1|KWD2|...): "
					(mapcar #'list org-todo-keywords-1))))
		  (concat "\\("
			  (mapconcat 'identity (org-split-string kwd "|") "\\|")
			  "\\)\\>")))
	       ((<= (prefix-numeric-value arg) (length org-todo-keywords-1))
		(regexp-quote (nth (1- (prefix-numeric-value arg))
				   org-todo-keywords-1)))
	       (t (user-error "Invalid prefix argument: %s" arg)))))
    (message "%d TODO entries found"
	     (org-occur (concat "^" org-outline-regexp " *" kwd-re )))))

(defun org--deadline-or-schedule (arg type time)
  "Insert DEADLINE or SCHEDULE information in current entry.
TYPE is either `deadline' or `scheduled'.  See `org-deadline' or
`org-schedule' for information about ARG and TIME arguments."
  (org-fold-core-ignore-modifications
    (let* ((deadline? (eq type 'deadline))
	   (keyword (if deadline? org-deadline-string org-scheduled-string))
	   (log (if deadline? org-log-redeadline org-log-reschedule))
	   (old-date (org-entry-get nil (if deadline? "DEADLINE" "SCHEDULED")))
	   (old-date-time (and old-date (org-time-string-to-time old-date)))
	   ;; Save repeater cookie from either TIME or current scheduled
	   ;; time stamp.  We are going to insert it back at the end of
	   ;; the process.
	   (repeater (or (and (org-string-nw-p time)
			      ;; We use `org-ts-regexp-both' because we
			      ;; need to tell the difference between a
			      ;; real repeater and a time delta, e.g.
			      ;; "+2d".
                              (string-match-p org-ts-regexp-both time)
                              (string-match "\\([.+-]+[0-9]+[hdwmy]\
\\(?:[/ ][-+]?[0-9]+[hdwmy]\\)?\\)"
					    time)
			      (match-string 1 time))
		         (and (org-string-nw-p old-date)
			      (string-match "\\([.+-]+[0-9]+[hdwmy]\
\\(?:[/ ][-+]?[0-9]+[hdwmy]\\)?\\)"
					    old-date)
			      (match-string 1 old-date)))))
      (pcase arg
        (`(4)
         (if (not old-date)
	     (message (if deadline? "Entry had no deadline to remove"
		        "Entry was not scheduled"))
	   (when (and old-date log)
	     (org-add-log-setup (if deadline? 'deldeadline 'delschedule)
			     nil old-date log))
	   (org-remove-timestamp-with-keyword keyword)
	   (message (if deadline? "Entry no longer has a deadline."
		      "Entry is no longer scheduled."))))
        (`(16)
         (save-excursion
	   (org-back-to-heading t)
	   (let ((regexp (if deadline? org-deadline-time-regexp
			   org-scheduled-time-regexp)))
	     (if (not (re-search-forward regexp (line-end-position 2) t))
	         (user-error (if deadline? "No deadline information to update"
			       "No scheduled information to update"))
	       (let* ((rpl0 (match-string 1))
		      (rpl (replace-regexp-in-string " -[0-9]+[hdwmy]" "" rpl0))
		      (msg (if deadline? "Warn starting from" "Delay until")))
	         (replace-match
		  (concat keyword
			  " <" rpl
			  (format " -%dd"
				  (abs (- (time-to-days
					   (save-match-data
					     (org-read-date
					      nil t nil msg old-date-time)))
					  (time-to-days old-date-time))))
			  ">") t t))))))
        (_
         (org-add-planning-info type time 'closed)
         (when (and old-date
		    log
		    (not (equal old-date org-last-inserted-timestamp)))
	   (org-add-log-setup (if deadline? 'redeadline 'reschedule)
			      org-last-inserted-timestamp
			      old-date
			      log))
         (when repeater
	   (save-excursion
	     (org-back-to-heading t)
	     (when (re-search-forward
		    (concat keyword " " org-last-inserted-timestamp)
		    (line-end-position 2)
		    t)
	       (goto-char (1- (match-end 0)))
	       (insert-and-inherit " " repeater)
	       (setq org-last-inserted-timestamp
		     (concat (substring org-last-inserted-timestamp 0 -1)
			     " " repeater
			     (substring org-last-inserted-timestamp -1))))))
         (message (if deadline? "Deadline on %s" "Scheduled to %s")
		  org-last-inserted-timestamp))))))

(defun org-deadline (arg &optional time)
  "Insert a \"DEADLINE:\" string with a timestamp to make a deadline.

When called interactively, this command pops up the Emacs calendar to let
the user select a date.

With one universal prefix argument, remove any deadline from the item.
With two universal prefix arguments, prompt for a warning delay.
With argument TIME, set the deadline at the corresponding date.  TIME
can either be an Org date like \"2011-07-24\" or a delta like \"+2d\"."
  (interactive "P")
  (if (and (org-region-active-p) org-loop-over-headlines-in-active-region)
      (org-map-entries
       (lambda () (org--deadline-or-schedule arg 'deadline time))
       nil
       (if (eq org-loop-over-headlines-in-active-region 'start-level)
	   'region-start-level
	 'region)
       (lambda () (when (org-invisible-p) (org-end-of-subtree nil t))))
    (org--deadline-or-schedule arg 'deadline time)))

(defun org-schedule (arg &optional time)
  "Insert a \"SCHEDULED:\" string with a timestamp to schedule an item.

When called interactively, this command pops up the Emacs calendar to let
the user select a date.

With one universal prefix argument, remove any scheduling date from the item.
With two universal prefix arguments, prompt for a delay cookie.
With argument TIME, scheduled at the corresponding date.  TIME can
either be an Org date like \"2011-07-24\" or a delta like \"+2d\"."
  (interactive "P")
  (if (and (org-region-active-p) org-loop-over-headlines-in-active-region)
      (org-map-entries
       (lambda () (org--deadline-or-schedule arg 'scheduled time))
       nil
       (if (eq org-loop-over-headlines-in-active-region 'start-level)
	   'region-start-level
	 'region)
       (lambda () (when (org-invisible-p) (org-end-of-subtree nil t))))
    (org--deadline-or-schedule arg 'scheduled time)))

(defun org-get-scheduled-time (pom &optional inherit)
  "Get the scheduled time as a time tuple, of a format suitable
for calling org-schedule with, or if there is no scheduling,
returns nil."
  (let ((time (org-entry-get pom "SCHEDULED" inherit)))
    (when time
      (org-time-string-to-time time))))

(defun org-get-deadline-time (pom &optional inherit)
  "Get the deadline as a time tuple, of a format suitable for
calling org-deadline with, or if there is no scheduling, returns
nil."
  (let ((time (org-entry-get pom "DEADLINE" inherit)))
    (when time
      (org-time-string-to-time time))))

(defun org-remove-timestamp-with-keyword (keyword)
  "Remove all time stamps with KEYWORD in the current entry."
  (let ((re (concat "\\<" (regexp-quote keyword) " +<[^>\n]+>[ \t]*"))
	beg)
    (save-excursion
      (org-back-to-heading t)
      (setq beg (point))
      (outline-next-heading)
      (while (re-search-backward re beg t)
	(replace-match "")
        (if (and (string-match "\\S-" (buffer-substring (line-beginning-position) (point)))
		 (equal (char-before) ?\ ))
	    (delete-char -1)
	  (when (string-match "^[ \t]*$" (buffer-substring
                                          (line-beginning-position) (line-end-position)))
            (delete-region (line-beginning-position)
                           (min (point-max) (1+ (line-end-position))))))))))

(defvar org-time-was-given) ; dynamically scoped parameter
(defvar org-end-time-was-given) ; dynamically scoped parameter

(defun org-at-planning-p ()
  "Non-nil when point is on a planning info line."
  ;; This is as accurate and faster than `org-element-at-point' since
  ;; planning info location is fixed in the section.
  (or (let ((cached (org-element-at-point nil 'cached)))
        (and cached (org-element-type-p cached 'planning)))
      (org-with-wide-buffer
       (forward-line 0)
       (and (looking-at-p org-planning-line-re)
	    (eq (point)
	        (ignore-errors
	          (if (and (featurep 'org-inlinetask) (org-inlinetask-in-task-p))
		      (org-back-to-heading t)
		    (org-with-limited-levels (org-back-to-heading t)))
	          (line-beginning-position 2)))))))

(defun org-add-planning-info (what &optional time &rest remove)
  "Insert new timestamp with keyword in the planning line.
WHAT indicates what kind of time stamp to add.  It is a symbol
among `closed', `deadline', `scheduled' and nil.  TIME indicates
the time to use.  If none is given, the user is prompted for
a date.  REMOVE indicates what kind of entries to remove.  An old
WHAT entry will also be removed."
  (org-fold-core-ignore-modifications
    (let (org-time-was-given org-end-time-was-given default-time default-input)
      (when (and (memq what '(scheduled deadline))
	         (or (not time)
		     (and (stringp time)
			  (string-match "^[-+]+[0-9]" time))))
        ;; Try to get a default date/time from existing timestamp
        (save-excursion
	  (org-back-to-heading t)
	  (let ((end (save-excursion (outline-next-heading) (point))) ts)
	    (when (re-search-forward (if (eq what 'scheduled)
				         org-scheduled-time-regexp
				       org-deadline-time-regexp)
				     end t)
	      (setq ts (match-string 1)
		    default-time (org-time-string-to-time ts)
		    default-input (and ts (org-get-compact-tod ts)))))))
      (when what
        (setq time
	      (if (stringp time)
		  ;; This is a string (relative or absolute), set
		  ;; proper date.
		  (org-encode-time
		   (org-read-date-analyze
		    time default-time (decode-time default-time)))
	        ;; If necessary, get the time from the user
	        (or time (org-read-date nil 'to-time nil
				     (cl-case what
				       (deadline "DEADLINE")
				       (scheduled "SCHEDULED")
				       (otherwise nil))
				     default-time default-input)))))
      (org-with-wide-buffer
       (org-back-to-heading t)
       (let ((planning? (save-excursion
			  (forward-line)
			  (looking-at-p org-planning-line-re))))
         (cond
	  (planning?
	   (forward-line)
	   ;; Move to current indentation.
	   (skip-chars-forward " \t")
	   ;; Check if we have to remove something.
	   (dolist (type (if what (cons what remove) remove))
	     (save-excursion
	       (when (re-search-forward
		      (cl-case type
		        (closed org-closed-time-regexp)
		        (deadline org-deadline-time-regexp)
		        (scheduled org-scheduled-time-regexp)
		        (otherwise (error "Invalid planning type: %s" type)))
		      (line-end-position)
		      t)
	         ;; Delete until next keyword or end of line.
	         (delete-region
		  (match-beginning 0)
		  (if (re-search-forward org-keyword-time-not-clock-regexp
				         (line-end-position)
				         t)
		      (match-beginning 0)
		    (line-end-position))))))
	   ;; If there is nothing more to add and no more keyword is
	   ;; left, remove the line completely.
	   (if (and (looking-at-p "[ \t]*$") (not what))
	       (delete-region (line-end-position 0)
			      (line-end-position))
	     ;; If we removed last keyword, do not leave trailing white
	     ;; space at the end of line.
	     (let ((p (point)))
	       (save-excursion
	         (end-of-line)
	         (unless (= (skip-chars-backward " \t" p) 0)
		   (delete-region (point) (line-end-position)))))))
	  (what
	   (end-of-line)
	   (insert-and-inherit "\n")
	   (when org-adapt-indentation
	     (indent-to-column (1+ (org-outline-level)))))
	  (t nil)))
       (when what
         ;; Insert planning keyword.
         (insert-and-inherit (cl-case what
		               (closed org-closed-string)
		               (deadline org-deadline-string)
		               (scheduled org-scheduled-string)
		               (otherwise (error "Invalid planning type: %s" what)))
	                     " ")
         ;; Insert associated timestamp.
         (let ((ts (org-insert-timestamp
		    time
		    (or org-time-was-given
		        (and (eq what 'closed) org-log-done-with-time))
		    (eq what 'closed)
		    nil nil (list org-end-time-was-given))))
	   (unless (eolp) (insert " "))
	   ts))))))

(defvar org-log-note-marker (make-marker)
  "Marker pointing at the entry where the note is to be inserted.")
(defvar org-log-note-purpose nil)
(defvar org-log-note-state nil)
(defvar org-log-note-previous-state nil)
(defvar org-log-note-extra nil)
(defvar org-log-note-window-configuration nil)
(defvar org-log-note-return-to (make-marker))
(defvar org-log-note-effective-time nil
  "Remembered current time.
So that dynamically scoped `org-extend-today-until' affects
timestamps in state change log.")
(defvar org-log-note-this-command
  "`this-command' when `org-add-log-setup' is called.")
(defvar org-log-note-recursion-depth
  "`recursion-depth' when `org-add-log-setup' is called.")

(defvar org-log-post-message nil
  "Message to be displayed after a log note has been stored.
The auto-repeater uses this.")

(defun org-add-note ()
  "Add a note to the current entry.
This is done in the same way as adding a state change note."
  (interactive)
  (org-add-log-setup 'note))

(defun org-log-beginning (&optional create)
  "Return expected start of log notes in current entry.
When optional argument CREATE is non-nil, the function creates
a drawer to store notes, if necessary.  Returned position ignores
narrowing."
  (org-with-wide-buffer
   (let ((drawer (org-log-into-drawer)))
     (cond
      (drawer
       (org-end-of-meta-data)
       (let ((regexp (concat "^[ \t]*:" (regexp-quote drawer) ":[ \t]*$"))
	     (end (if (org-at-heading-p) (point)
		    (save-excursion (outline-next-heading) (point))))
	     (case-fold-search t))
	 (catch 'exit
	   ;; Try to find existing drawer.
	   (while (re-search-forward regexp end t)
	     (let ((element (org-element-at-point)))
	       (when (org-element-type-p element 'drawer)
		 (let ((cend  (org-element-contents-end element)))
		   (when (and (not org-log-states-order-reversed) cend)
		     (goto-char cend)))
		 (throw 'exit nil))))
	   ;; No drawer found.  Create one, if permitted.
	   (when create
             ;; Unless current heading is the last heading in buffer
             ;; and does not have a newline, `org-end-of-meta-data'
             ;; should move us somewhere below the heading.
             ;; Avoid situation when we insert drawer right before
             ;; first "*".  Otherwise, if the previous heading is
             ;; folded, we are inserting after visible newline at
             ;; the end of the fold, thus breaking the fold
             ;; continuity.
             (unless (eobp)
               (when (org-at-heading-p) (backward-char)))
             (org-fold-core-ignore-modifications
	       (unless (bolp) (insert-and-inherit "\n"))
	       (let ((beg (point)))
	         (insert-and-inherit ":" drawer ":\n:END:\n")
	         (org-indent-region beg (point))
	         (org-fold-region (line-end-position -1) (1- (point)) t (if (eq org-fold-core-style 'text-properties) 'drawer 'outline)))))
	   (end-of-line -1))))
      (t
       (org-end-of-meta-data org-log-state-notes-insert-after-drawers)
       (let ((endpos (point)))
         (skip-chars-forward " \t\n")
         (forward-line 0)
         (unless org-log-states-order-reversed
	   (org-skip-over-state-notes)
	   (skip-chars-backward " \t\n")
	   (forward-line 1))
         ;; When current headline is at the end of buffer and does not
         ;; end with trailing newline the above can move to the
         ;; beginning of the headline.
         (when (< (point) endpos) (goto-char endpos))))))
   (if (bolp) (point) (line-beginning-position 2))))

(defun org-add-log-setup (&optional purpose state prev-state how extra)
  "Set up the post command hook to take a note.
If this is about to TODO state change, the new state is expected in STATE.
HOW is an indicator what kind of note should be created.
EXTRA is additional text that will be inserted into the notes buffer."
  (move-marker org-log-note-marker (point))
  (setq org-log-note-purpose purpose
	org-log-note-state state
	org-log-note-previous-state prev-state
	org-log-note-how how
	org-log-note-extra extra
	org-log-note-effective-time (org-current-effective-time)
        org-log-note-this-command this-command
        org-log-note-recursion-depth (recursion-depth)
        org-log-setup t)
  (add-hook 'post-command-hook 'org-add-log-note 'append))

(defun org-skip-over-state-notes ()
  "Skip past the list of State notes in an entry.
The point is assumed to be on a list of State notes, each matching
`org-log-note-headings'.  The function moves point to the first list
item that is not a State note or to the end of the list if all the
items are State notes."
  (when (ignore-errors (goto-char (org-in-item-p)))
    (let* ((struct (org-list-struct))
	   (prevs (org-list-prevs-alist struct))
	   (regexp
	    (concat "[ \t]*- +"
		    (replace-regexp-in-string
		     " +" " +"
		     (org-replace-escapes
		      (regexp-quote (cdr (assq 'state org-log-note-headings)))
		      `(("%d" . ,org-ts-regexp-inactive)
			("%D" . ,org-ts-regexp)
			("%s" . "\\(?:\"\\S-+\"\\)?")
			("%S" . "\\(?:\"\\S-+\"\\)?")
			("%t" . ,org-ts-regexp-inactive)
			("%T" . ,org-ts-regexp)
			("%u" . ".*?")
			("%U" . ".*?")))))))
      (while (looking-at-p regexp)
	(goto-char (or (org-list-get-next-item (point) struct prevs)
		       (org-list-get-item-end (point) struct)))))))

(defun org-add-log-note (&optional _purpose)
  "Pop up a window for taking a note, and add this note later."
  (when (and (equal org-log-note-this-command this-command)
             (= org-log-note-recursion-depth (recursion-depth)))
    (remove-hook 'post-command-hook 'org-add-log-note)
    (setq org-log-setup nil)
    (setq org-log-note-window-configuration (current-window-configuration))
    (delete-other-windows)
    (move-marker org-log-note-return-to (point))
    (pop-to-buffer-same-window (marker-buffer org-log-note-marker))
    (goto-char org-log-note-marker)
    (switch-to-buffer-other-window "*Org Note*")
    (erase-buffer)
    (if (memq org-log-note-how '(time state))
        (org-store-log-note)
      (let ((org-inhibit-startup t)) (org-mode))
      (insert (format "# Insert note for %s.
# Finish with C-c C-c, or cancel with C-c C-k.\n\n"
                      (cl-case org-log-note-purpose
                        (clock-out "stopped clock")
                        (done  "closed todo item")
                        (reschedule "rescheduling")
                        (delschedule "no longer scheduled")
                        (redeadline "changing deadline")
                        (deldeadline "removing deadline")
                        (refile "refiling")
                        (note "this entry")
                        (state
                         (format "state change from \"%s\" to \"%s\""
                                 (or org-log-note-previous-state "")
                                 (or org-log-note-state "")))
                        (t (error "This should not happen")))))
      (when org-log-note-extra (insert org-log-note-extra))
      (setq-local org-finish-function 'org-store-log-note)
      (run-hooks 'org-log-buffer-setup-hook))))

(defvar org-note-abort nil) ; dynamically scoped
(defun org-store-log-note ()
  "Finish taking a log note, and insert it to where it belongs."
  (let ((txt (prog1 (buffer-string)
	       (kill-buffer)))
	(note (cdr (assq org-log-note-purpose org-log-note-headings)))
	lines)
    (while (string-match "\\`# .*\n[ \t\n]*" txt)
      (setq txt (replace-match "" t t txt)))
    (when (string-match "\\s-+\\'" txt)
      (setq txt (replace-match "" t t txt)))
    (setq lines (and (not (equal "" txt)) (org-split-string txt "\n")))
    (when (org-string-nw-p note)
      (setq note
	    (org-replace-escapes
	     note
	     (list (cons "%u" (user-login-name))
		   (cons "%U" user-full-name)
		   (cons "%t" (format-time-string
			       (org-time-stamp-format 'long 'inactive)
			       org-log-note-effective-time))
		   (cons "%T" (format-time-string
			       (org-time-stamp-format 'long nil)
			       org-log-note-effective-time))
		   (cons "%d" (format-time-string
			       (org-time-stamp-format nil 'inactive)
			       org-log-note-effective-time))
		   (cons "%D" (format-time-string
			       (org-time-stamp-format nil nil)
			       org-log-note-effective-time))
		   (cons "%s" (cond
			       ((not org-log-note-state) "")
			       ((string-match-p org-ts-regexp
						org-log-note-state)
				(format "\"[%s]\""
					(substring org-log-note-state 1 -1)))
			       (t (format "\"%s\"" org-log-note-state))))
		   (cons "%S"
			 (cond
			  ((not org-log-note-previous-state) "")
			  ((string-match-p org-ts-regexp
					   org-log-note-previous-state)
			   (format "\"[%s]\""
				   (substring
				    org-log-note-previous-state 1 -1)))
			  (t (format "\"%s\""
				     org-log-note-previous-state)))))))
      (when lines (setq note (concat note " \\\\")))
      (push note lines))
    (when (and lines (not org-note-abort))
      (with-current-buffer (marker-buffer org-log-note-marker)
        (org-fold-core-ignore-modifications
	  (org-with-wide-buffer
	   ;; Find location for the new note.
	   (goto-char org-log-note-marker)
	   (set-marker org-log-note-marker nil)
	   ;; Note associated to a clock is to be located right after
	   ;; the clock.  Do not move point.
	   (unless (eq org-log-note-purpose 'clock-out)
	     (goto-char (org-log-beginning t)))
	   ;; Make sure point is at the beginning of an empty line.
	   (cond ((not (bolp)) (let ((inhibit-read-only t)) (insert-and-inherit "\n")))
	         ((looking-at "[ \t]*\\S-") (save-excursion (insert-and-inherit "\n"))))
	   ;; In an existing list, add a new item at the top level.
	   ;; Otherwise, indent line like a regular one.
	   (let ((itemp (org-in-item-p)))
	     (if itemp
	         (indent-line-to
		  (let ((struct (save-excursion
				  (goto-char itemp) (org-list-struct))))
		    (org-list-get-ind (org-list-get-top-point struct) struct)))
	       (org-indent-line)))
	   (insert-and-inherit (org-list-bullet-string "-") (pop lines))
	   (let ((ind (org-list-item-body-column (line-beginning-position))))
	     (dolist (line lines)
	       (insert-and-inherit "\n")
               (unless (string-empty-p line)
	         (indent-line-to ind)
	         (insert-and-inherit line))))
	   (message "Note stored")
	   (org-back-to-heading t))))))
  ;; Don't add undo information when called from `org-agenda-todo'.
  (set-window-configuration org-log-note-window-configuration)
  (with-current-buffer (marker-buffer org-log-note-return-to)
    (goto-char org-log-note-return-to))
  (move-marker org-log-note-return-to nil)
  (when org-log-post-message (message "%s" org-log-post-message)))

(defun org-remove-empty-drawer-at (pos)
  "Remove an empty drawer at position POS.
POS may also be a marker."
  (with-current-buffer (if (markerp pos) (marker-buffer pos) (current-buffer))
    (org-with-wide-buffer
     (goto-char pos)
     (let ((drawer (org-element-at-point)))
       (when (and (org-element-type-p drawer '(drawer property-drawer))
		  (not (org-element-contents-begin drawer)))
	 (delete-region (org-element-begin drawer)
			(progn (goto-char (org-element-end drawer))
			       (skip-chars-backward " \r\t\n")
			       (forward-line)
			       (point))))))))

(defvar org-ts-type nil)
(defun org-sparse-tree (&optional arg type)
  "Create a sparse tree, prompt for the details.
This command can create sparse trees.  You first need to select the type
of match used to create the tree:

t      Show all TODO entries.
T      Show entries with a specific TODO keyword.
m      Show entries selected by a tags/property match.
p      Enter a property name and its value (both with completion on existing
       names/values) and show entries with that property.
r      Show entries matching a regular expression (`/' can be used as well).
b      Show deadlines and scheduled items before a date.
a      Show deadlines and scheduled items after a date.
d      Show deadlines due within `org-deadline-warning-days'.
D      Show deadlines and scheduled items between a date range."
  (interactive "P")
  (setq type (or type org-sparse-tree-default-date-type))
  (setq org-ts-type type)
  (message "Sparse tree: [r]egexp [t]odo [T]odo-kwd [m]atch [p]roperty
             [d]eadlines [b]efore-date [a]fter-date [D]ates range
             [c]ycle through date types: %s"
	   (cl-case type
	     (all "all timestamps")
	     (scheduled "only scheduled")
	     (deadline "only deadline")
	     (active "only active timestamps")
	     (inactive "only inactive timestamps")
	     (closed "with a closed timestamp")
	     (otherwise "scheduled/deadline")))
  (let ((answer (read-char-exclusive)))
    (cl-case answer
      (?c
       (org-sparse-tree
	arg
	(cadr
	 (memq type '(nil all scheduled deadline active inactive closed)))))
      (?d (call-interactively 'org-check-deadlines))
      (?b (call-interactively 'org-check-before-date))
      (?a (call-interactively 'org-check-after-date))
      (?D (call-interactively 'org-check-dates-range))
      (?t (call-interactively 'org-show-todo-tree))
      (?T (org-show-todo-tree '(4)))
      (?m (call-interactively 'org-match-sparse-tree))
      ((?p ?P)
       (let* ((kwd (completing-read
		    "Property: " (mapcar #'list (org-buffer-property-keys))))
	      (value (completing-read
		      "Value: " (mapcar #'list (org-property-values kwd)))))
	 (unless (string-match "\\`{.*}\\'" value)
	   (setq value (concat "\"" value "\"")))
	 (org-match-sparse-tree arg (concat kwd "=" value))))
      ((?r ?R ?/) (call-interactively 'org-occur))
      (otherwise (user-error "No such sparse tree command \"%c\"" answer)))))

(defvar-local org-occur-highlights nil
  "List of overlays used for occur matches.")
(put 'org-occur-highlights 'permanent-local t)
(defvar-local org-occur-parameters nil
  "Parameters of the active org-occur calls.
This is a list, each call to org-occur pushes as cons cell,
containing the regular expression and the callback, onto the list.
The list can contain several entries if `org-occur' has been called
several time with the KEEP-PREVIOUS argument.  Otherwise, this list
will only contain one set of parameters.  When the highlights are
removed (for example with `C-c C-c', or with the next edit (depending
on `org-remove-highlights-with-change'), this variable is emptied
as well.")

(defun org-occur (regexp &optional keep-previous callback)
  "Make a compact tree showing all matches of REGEXP.

The tree will show the lines where the regexp matches, and any other context
defined in `org-fold-show-context-detail', which see.

When optional argument KEEP-PREVIOUS is non-nil, highlighting and exposing
done by a previous call to `org-occur' will be kept, to allow stacking of
calls to this command.

Optional argument CALLBACK can be a function of no argument.  In this case,
it is called with point at the end of the match, match data being set
accordingly.  Current match is shown only if the return value is non-nil.
The function must neither move point nor alter narrowing."
  (interactive "sRegexp: \nP")
  (when (equal regexp "")
    (user-error "Regexp cannot be empty"))
  (unless keep-previous
    (org-remove-occur-highlights nil nil t))
  (push (cons regexp callback) org-occur-parameters)
  (let ((cnt 0))
    (save-excursion
      (goto-char (point-min))
      (when (or (not keep-previous)	    ; do not want to keep
		(not org-occur-highlights)) ; no previous matches
	;; hide everything
	(org-cycle-overview))
      (let ((case-fold-search (if (eq org-occur-case-fold-search 'smart)
				  (isearch-no-upper-case-p regexp t)
				org-occur-case-fold-search)))
	(while (re-search-forward regexp nil t)
	  (when (or (not callback)
		    (save-match-data (funcall callback)))
	    (setq cnt (1+ cnt))
	    (when org-highlight-sparse-tree-matches
	      (org-highlight-new-match (match-beginning 0) (match-end 0)))
	    (org-fold-show-context 'occur-tree)))))
    (when org-remove-highlights-with-change
      (add-hook 'before-change-functions 'org-remove-occur-highlights
		nil 'local))
    (unless org-sparse-tree-open-archived-trees
      (org-fold-hide-archived-subtrees (point-min) (point-max)))
    (run-hooks 'org-occur-hook)
    (when (called-interactively-p 'interactive)
      (message "%d match(es) for regexp %s" cnt regexp))
    cnt))

(defun org-occur-next-match (&optional n _reset)
  "Function for `next-error-function' to find sparse tree matches.
N is the number of matches to move, when negative move backwards.
This function always goes back to the starting point when no
match is found."
  (let* ((limit (if (< n 0) (point-min) (point-max)))
	 (search-func (if (< n 0)
			  'previous-single-char-property-change
			'next-single-char-property-change))
	 (n (abs n))
	 (pos (point))
	 p1)
    (catch 'exit
      (while (setq p1 (funcall search-func (point) 'org-type))
	(when (equal p1 limit)
	  (goto-char pos)
	  (user-error "No more matches"))
	(when (equal (get-char-property p1 'org-type) 'org-occur)
	  (setq n (1- n))
	  (when (= n 0)
	    (goto-char p1)
	    (throw 'exit (point))))
	(goto-char p1))
      (goto-char p1)
      (user-error "No more matches"))))

(defun org-highlight-new-match (beg end)
  "Highlight from BEG to END and mark the highlight is an occur headline."
  (let ((ov (make-overlay beg end)))
    (overlay-put ov 'face 'secondary-selection)
    (overlay-put ov 'org-type 'org-occur)
    (push ov org-occur-highlights)))

(defun org-remove-occur-highlights (&optional _beg _end noremove)
  "Remove the occur highlights from the buffer.
BEG and END are ignored.  If NOREMOVE is nil, remove this function
from the `before-change-functions' in the current buffer."
  (interactive)
  (unless org-inhibit-highlight-removal
    (mapc #'delete-overlay org-occur-highlights)
    (setq org-occur-highlights nil)
    (setq org-occur-parameters nil)
    (unless noremove
      (remove-hook 'before-change-functions
		   'org-remove-occur-highlights 'local))))

;;;; Priorities

(defvar org-priority-regexp ".*?\\(\\[#\\([A-Z0-9]+\\)\\] ?\\)"
  "Regular expression matching the priority indicator.
A priority indicator can be e.g. [#A] or [#1].
This regular expression matches these groups:
0 : the whole match, e.g. \"TODO [#A] Hack\"
1 : the priority cookie, e.g. \"[#A]\"
2 : the value of the priority cookie, e.g. \"A\".")

(defun org-priority-up ()
  "Increase the priority of the current item."
  (interactive)
  (org-priority 'up))

(defun org-priority-down ()
  "Decrease the priority of the current item."
  (interactive)
  (org-priority 'down))

(defun org-priority (&optional action show)
  "Change the priority of an item.

When called interactively with a `\\[universal-argument]' prefix,
show the priority in the minibuffer instead of changing it.

When called programmatically, ACTION can be `set', `up', `down',
or a character."
  (interactive "P")
  (when show
    ;; Deprecation warning inserted for Org 9.2; once enough time has
    ;; passed the SHOW argument should be removed.
    (warn "`org-priority' called with deprecated SHOW argument"))
  (if (equal action '(4))
      (org-priority-show)
    (unless org-priority-enable-commands
      (user-error "Priority commands are disabled"))
    (setq action (or action 'set))
    (let ((nump (< org-priority-lowest 65))
	  current new news have remove)
      (save-excursion
	(org-back-to-heading t)
	(when (looking-at org-priority-regexp)
	  (let ((ms (match-string 2)))
	    (setq current (org-priority-to-value ms)
		  have t)))
	(cond
	 ((eq action 'remove)
	  (setq remove t new ?\ ))
	 ((or (eq action 'set)
	      (integerp action))
	  (if (not (eq action 'set))
	      (setq new action)
	    (setq
	     new
	     (if nump
                 (let* ((msg (format "Priority %s-%s, SPC to remove: "
                                     (number-to-string org-priority-highest)
                                     (number-to-string org-priority-lowest)))
                        (s (if (< 9 org-priority-lowest)
                               (read-string msg)
                             (message msg)
                             (char-to-string (read-char-exclusive)))))
                   (if (equal s " ") ?\s (string-to-number s)))
	       (progn (message "Priority %c-%c, SPC to remove: "
			       org-priority-highest org-priority-lowest)
		      (save-match-data
			(setq new (read-char-exclusive)))))))
	  (when (and (= (upcase org-priority-highest) org-priority-highest)
		     (= (upcase org-priority-lowest) org-priority-lowest))
	    (setq new (upcase new)))
	  (cond ((equal new ?\s) (setq remove t))
		((or (< (upcase new) org-priority-highest) (> (upcase new) org-priority-lowest))
		 (user-error
		  (if nump
		      "Priority must be between `%s' and `%s'"
		    "Priority must be between `%c' and `%c'")
		  org-priority-highest org-priority-lowest))))
	 ((eq action 'up)
	  (setq new (if have
			(1- current)  ; normal cycling
		      ;; last priority was empty
		      (if (eq last-command this-command)
			  org-priority-lowest  ; wrap around empty to lowest
			;; default
			(if org-priority-start-cycle-with-default
			    org-priority-default
			  (1- org-priority-default))))))
	 ((eq action 'down)
	  (setq new (if have
			(1+ current)  ; normal cycling
		      ;; last priority was empty
		      (if (eq last-command this-command)
			  org-priority-highest  ; wrap around empty to highest
			;; default
			(if org-priority-start-cycle-with-default
			    org-priority-default
			  (1+ org-priority-default))))))
	 (t (user-error "Invalid action")))
	(when (or (< (upcase new) org-priority-highest)
		  (> (upcase new) org-priority-lowest))
	  (if (and (memq action '(up down))
		   (not have) (not (eq last-command this-command)))
	      ;; `new' is from default priority
	      (error
	       "The default can not be set, see `org-priority-default' why")
	    ;; normal cycling: `new' is beyond highest/lowest priority
	    ;; and is wrapped around to the empty priority
	    (setq remove t)))
	;; Numerical priorities are limited to 64, beyond that number,
	;; assume the priority cookie is a character.
	(setq news (if (> new 64) (format "%c" new) (format "%s" new)))
	(if have
	    (if remove
		(replace-match "" t t nil 1)
	      (replace-match news t t nil 2))
	  (if remove
	      (user-error "No priority cookie found in line")
	    (let ((case-fold-search nil)) (looking-at org-todo-line-regexp))
	    (if (match-end 2)
		(progn
		  (goto-char (match-end 2))
		  (insert " [#" news "]"))
	      (goto-char (match-beginning 3))
	      (insert "[#" news "] "))))
	(org-align-tags))
      (if remove
	  (message "Priority removed")
	(message "Priority of current item set to %s" news)))))

(defalias 'org-show-priority 'org-priority-show)
(defun org-priority-show ()
  "Show the priority of the current item as number.
Return the priority value."
  (interactive)
  (let ((pri (if (eq major-mode 'org-agenda-mode)
		 (org-get-at-bol 'priority)
	       (save-excursion
		 (save-match-data
		   (forward-line 0)
		   (and (looking-at org-heading-regexp)
			(org-get-priority (match-string 0))))))))
    (message "Priority is %d" (if pri pri -1000))))

(defun org-get-priority (s)
  "Find priority cookie and return priority.
S is a string against which you can match `org-priority-regexp'.
If `org-priority-get-priority-function' is set to a custom
function, use it.  Otherwise process S and output the priority
value, an integer."
  (save-match-data
    (if (functionp org-priority-get-priority-function)
	(funcall org-priority-get-priority-function s)
      (if (not (string-match org-priority-regexp s))
	  (* 1000 (- org-priority-lowest org-priority-default))
	(* 1000 (- org-priority-lowest
		   (org-priority-to-value (match-string 2 s))))))))

;;;; Tags

(defvar org-agenda-archives-mode)
(defvar org-map-continue-from nil
  "Position from where mapping should continue.
Can be set by the action argument to `org-scan-tags' and `org-map-entries'.")

(defvar org-scanner-tags nil
  "The current tag list while the tags scanner is running.")

(defvar org-trust-scanner-tags nil
  "Should `org-get-tags' use the tags for the scanner.
This is for internal dynamical scoping only.
When this is non-nil, the function `org-get-tags' will return the value
of `org-scanner-tags' instead of building the list by itself.  This
can lead to large speed-ups when the tags scanner is used in a file with
many entries, and when the list of tags is retrieved, for example to
obtain a list of properties.  Building the tags list for each entry in such
a file becomes an N^2 operation - but with this variable set, it scales
as N.")

(defvar org--matcher-tags-todo-only nil)

(defun org-scan-tags (action matcher todo-only &optional start-level)
  "Scan headline tags with inheritance and produce output ACTION.

ACTION can be `sparse-tree' to produce a sparse tree in the current buffer,
or `agenda' to produce an entry list for an agenda view.  It can also be
a Lisp form or a function that should be called at each matched headline, in
this case the return value is a list of all return values from these calls.

MATCHER is a function accepting three arguments, returning
a non-nil value whenever a given set of tags qualifies a headline
for inclusion.  See `org-make-tags-matcher' for more information.
As a special case, it can also be set to t (respectively nil) in
order to match all (respectively none) headline.

When TODO-ONLY is non-nil, only lines with a TODO keyword are
included in the output.

START-LEVEL can be a string with asterisks, reducing the scope to
headlines matching this string."
  (require 'org-agenda)
  (let* ((heading-re
          (concat ;;FIXME: use cache
           "^"
           (if start-level
	       ;; Get the correct level to match
	       (concat "\\*\\{" (number-to-string start-level) "\\} ")
	     org-outline-regexp)))
	 (props (list 'face 'default
		      'done-face 'org-agenda-done
		      'undone-face 'default
		      'mouse-face 'highlight
		      'org-not-done-regexp org-not-done-regexp
		      'org-todo-regexp org-todo-regexp
		      'org-complex-heading-regexp org-complex-heading-regexp
		      'help-echo
		      (format "mouse-2 or RET jump to Org file %S"
			      (abbreviate-file-name
			       (or (buffer-file-name (buffer-base-buffer))
				   (buffer-name (buffer-base-buffer)))))))
	 (org-map-continue-from nil)
         tags-list rtn rtn1 level category txt
	 todo marker priority
	 ts-date ts-date-type ts-date-pair)
    (unless (or (member action '(agenda sparse-tree)) (functionp action))
      (setq action (list 'lambda nil action)))
    (save-excursion
      (goto-char (point-min))
      (when (eq action 'sparse-tree)
	(org-cycle-overview)
	(org-remove-occur-highlights))
      (org-element-cache-map
       (lambda (el)
         (goto-char (org-element-begin el))
         (setq todo (org-element-property :todo-keyword el)
               level (org-element-property :level el)
               category (org-entry-get-with-inheritance "CATEGORY" nil el)
               tags-list (org-get-tags el)
               org-scanner-tags tags-list)
         (when (eq action 'agenda)
           (setq ts-date-pair (org-agenda-entry-get-agenda-timestamp el)
		 ts-date (car ts-date-pair)
		 ts-date-type (cdr ts-date-pair)))
         (catch :skip
           (when (and

		  ;; eval matcher only when the todo condition is OK
		  (and (or (not todo-only) (member todo org-todo-keywords-1))
		       (if (functionp matcher)
			   (let ((case-fold-search t) (org-trust-scanner-tags t))
			     (funcall matcher todo tags-list level))
			 matcher))

		  ;; Call the skipper, but return t if it does not
		  ;; skip, so that the `and' form continues evaluating.
		  (progn
		    (unless (eq action 'sparse-tree) (org-agenda-skip el))
		    t)

		  ;; Check if timestamps are deselecting this entry
		  (or (not todo-only)
		      (and (member todo org-todo-keywords-1)
			   (or (not org-agenda-tags-todo-honor-ignore-options)
			       (not (org-agenda-check-for-timestamp-as-reason-to-ignore-todo-item))))))

	     ;; select this headline
	     (cond
	      ((eq action 'sparse-tree)
	       (and org-highlight-sparse-tree-matches
		    (org-get-heading) (match-end 0)
		    (org-highlight-new-match
		     (match-beginning 1) (match-end 1)))
	       (org-fold-show-context 'tags-tree))
	      ((eq action 'agenda)
               (let* ((effort (org-entry-get (point) org-effort-property))
                      (effort-minutes (when effort (save-match-data (org-duration-to-minutes effort)))))
	         (setq txt (org-agenda-format-item
			    ""
                            ;; Add `effort' and `effort-minutes'
                            ;; properties for prefix format.
                            (org-add-props
                                (concat
			         (if (eq org-tags-match-list-sublevels 'indented)
			             (make-string (1- level) ?.) "")
			         (org-get-heading))
                                nil
                              'effort effort
                              'effort-minutes effort-minutes)
			    (make-string level ?\s)
			    category
			    tags-list)
		       priority (org-get-priority txt))
                 ;; Now add `effort' and `effort-minutes' to
                 ;; full agenda line.
                 (setq txt (org-add-props txt nil
                             'effort effort
                             'effort-minutes effort-minutes)))
	       (goto-char (org-element-begin el))
	       (setq marker (org-agenda-new-marker))
	       (org-add-props txt props
		 'org-marker marker 'org-hd-marker marker 'org-category category
		 'todo-state todo
                 'ts-date ts-date
		 'priority priority
                 'type (concat "tagsmatch" ts-date-type))
	       (push txt rtn))
	      ((functionp action)
	       (setq org-map-continue-from nil)
	       (save-excursion
		 (setq rtn1 (funcall action))
		 (push rtn1 rtn)))
	      (t (user-error "Invalid action")))

	     ;; if we are to skip sublevels, jump to end of subtree
	     (unless org-tags-match-list-sublevels
	       (goto-char (1- (org-element-end el))))))
         ;; Get the correct position from where to continue
	 (when org-map-continue-from
           (setq org-element-cache-map-continue-from org-map-continue-from)
	   (goto-char org-map-continue-from))
         ;; Return nil.
         nil)
       :next-re heading-re
       :fail-re heading-re
       :narrow t))
    (when (and (eq action 'sparse-tree)
	       (not org-sparse-tree-open-archived-trees))
      (org-fold-hide-archived-subtrees (point-min) (point-max)))
    (nreverse rtn)))

(defun org-remove-uninherited-tags (tags)
  "Remove all tags that are not inherited from the list TAGS."
  (cond
   ((eq org-use-tag-inheritance t)
    (if org-tags-exclude-from-inheritance
	(org-delete-all org-tags-exclude-from-inheritance tags)
      tags))
   ((not org-use-tag-inheritance) nil)
   ((stringp org-use-tag-inheritance)
    (delq nil (mapcar
	       (lambda (x)
		 (if (and (string-match org-use-tag-inheritance x)
			  (not (member x org-tags-exclude-from-inheritance)))
		     x nil))
	       tags)))
   ((listp org-use-tag-inheritance)
    (delq nil (mapcar
	       (lambda (x)
		 (if (member x org-use-tag-inheritance) x nil))
	       tags)))))

(defun org-match-sparse-tree (&optional todo-only match)
  "Create a sparse tree according to tags string MATCH.

MATCH is a string with match syntax.  It can contain a selection
of tags (\"+work+urgent-boss\"), properties (\"LEVEL>3\"), and
TODO keywords (\"TODO=\\\"WAITING\\\"\") or a combination of
those.  See the manual for details.

If optional argument TODO-ONLY is non-nil, only select lines that
are also TODO tasks."
  (interactive "P")
  (org-agenda-prepare-buffers (list (current-buffer)))
  (let ((org--matcher-tags-todo-only todo-only))
    (org-scan-tags 'sparse-tree (cdr (org-make-tags-matcher match t))
		   org--matcher-tags-todo-only)))

(defalias 'org-tags-sparse-tree 'org-match-sparse-tree)

(defvar org-cached-props nil)
(defun org-cached-entry-get (pom property)
  (if (or (eq t org-use-property-inheritance)
	  (and (stringp org-use-property-inheritance)
	       (let ((case-fold-search t))
		 (string-match-p org-use-property-inheritance property)))
	  (and (listp org-use-property-inheritance)
	       (member-ignore-case property org-use-property-inheritance)))
      ;; Caching is not possible, check it directly.
      (org-entry-get pom property 'inherit)
    ;; Get all properties, so we can do complicated checks easily.
    (cdr (assoc-string property
		       (or org-cached-props
			   (setq org-cached-props (org-entry-properties pom)))
		       t))))

(defun org-global-tags-completion-table (&optional files)
  "Return the list of all tags in all agenda buffer/files.
Optional FILES argument is a list of files which can be used
instead of the agenda files."
  (save-excursion
    (org-uniquify
     (delq nil
	   (apply #'append
		  (mapcar
		   (lambda (file)
		     (set-buffer (find-file-noselect file))
		     (org--tag-add-to-alist
		      (org-get-buffer-tags)
		      (mapcar (lambda (x)
				(and (stringp (car-safe x))
				     (list (car-safe x))))
			      org-current-tag-alist)))
		   (if (car-safe files) files
		     (org-agenda-files))))))))

(defun org-make-tags-matcher (match &optional only-local-tags)
  "Create the TAGS/TODO matcher form for the selection string MATCH.

Returns a cons of the selection string MATCH and a function
implementing the matcher.

The matcher is to be called at an Org entry, with point on the
headline, and returns non-nil if the entry matches the selection
string MATCH.  It must be called with three arguments: the TODO
keyword at the entry (or nil if none), the list of all tags at
the entry including inherited ones and the reduced level of the
headline.  Additionally, the category of the entry, if any, must
be specified as the text property `org-category' on the headline.

This function sets the variable `org--matcher-tags-todo-only' to
a non-nil value if the matcher restricts matching to TODO
entries, otherwise it is not touched.

When ONLY-LOCAL-TAGS is non-nil, ignore the global tag completion
table, only get buffer tags.

See also `org-scan-tags'."
  (unless match
    ;; Get a new match request, with completion against the global
    ;; tags table and the local tags in current buffer.
    (let ((org-last-tags-completion-table
	   (org--tag-add-to-alist
            (when (derived-mode-p 'org-mode)
	      (org-get-buffer-tags))
	    (unless only-local-tags
	      (org-global-tags-completion-table)))))
      (setq match
	    (completing-read
	     "Match: "
	     'org-tags-completion-function nil nil nil 'org-tags-history))))

  (let* ((match0 match)
         (opre "[<=>]=?\\|[!/]=\\|<>")
         (re (concat
              "^"
              ;; implicit AND operator (OR is done by global splitting)
              "&?"
              ;; exclusion and inclusion (the latter being implicit)
              "\\(?1:[-+:]\\)?"
              ;; query term
              "\\(?2:"
                  ;; tag regexp match
                  "{[^}]+}\\|"
                  ;; property match.  Try to keep this subre generic
                  ;; and rather handle special properties like LEVEL
                  ;; and CATEGORY further below.  This ensures that
                  ;; the same quoting mechanics can be used for all
                  ;; property names.
                  "\\(?:"
                      ;; property name [1]
                      "\\(?5:\\(?:[[:alnum:]_]+\\|\\\\[^[:space:]]\\)+\\)"
                      ;; operator, optionally starred
                      "\\(?6:" opre "\\)\\(?7:\\*\\)?"
                      ;; operand (regexp, double-quoted string,
                      ;; number)
                      "\\(?8:"
                          "{[^}]+}\\|"
                          "\"[^\"]*\"\\|"
                          "-?[.0-9]+\\(?:[eE][-+]?[0-9]+\\)?"
                      "\\)"
                  "\\)\\|"
                  ;; exact tag match
                  org-tag-re
              "\\)"))
         (start 0)
         tagsmatch todomatch tagsmatcher todomatcher)

    ;; [1] The history of this particular subre:
    ;; - \\([[:alnum:]_]+\\) [pre-19b0e03]
    ;;   Does not allow for minus characters in property names.
    ;; - "\\(\\(?:[[:alnum:]_]+\\(?:\\\\-\\)*\\)+\\)" [19b0e03]
    ;;   Incomplete fix of above issue, still resulting in, e.g.,
    ;;   https://orgmode.org/list/87jzv67k3p.fsf@localhost.
    ;; - "\\(?5:[[:alnum:]_-]+\\)" [f689eb4]
    ;;   Allows for unquoted minus characters in property names, but
    ;;   conflicts with searches like -TAG-PROP="VALUE".  See
    ;;   https://orgmode.org/list/87h6oq2nu1.fsf@gmail.com.
    ;; - current subre
    ;;   Like second solution, but with proper unquoting and allowing
    ;;   for all possible characters in property names to be quoted.

    ;; Expand group tags.
    (setq match (org-tags-expand match))

    ;; Check if there is a TODO part of this match, which would be the
    ;; part after a "/".  To make sure that this slash is not part of
    ;; a property value to be matched against, we also check that
    ;; there is no / after that slash.  First, find the last slash.
    (let ((s 0))
      (while (string-match "/+" match s)
	(setq start (match-beginning 0))
	(setq s (match-end 0))))
    (if (and (string-match "/+" match start)
	     (not (string-match-p "\"" match start)))
	;; Match contains also a TODO-matching request.
	(progn
	  (setq tagsmatch (substring match 0 (match-beginning 0)))
	  (setq todomatch (substring match (match-end 0)))
	  (when (string-prefix-p "!" todomatch)
	    (setq org--matcher-tags-todo-only t)
	    (setq todomatch (substring todomatch 1)))
	  (when (string-match "\\`\\s-*\\'" todomatch)
	    (setq todomatch nil)))
      ;; Only matching tags.
      (setq tagsmatch match)
      (setq todomatch nil))

    ;; Make the tags matcher.
    (when (org-string-nw-p tagsmatch)
      (let ((orlist nil)
	    (orterms (org-split-string tagsmatch "|"))
	    term)
	(while (setq term (pop orterms))
	  (while (and (equal (substring term -1) "\\") orterms)
	    (setq term (concat term "|" (pop orterms)))) ;repair bad split.
	  (while (string-match re term)
	    (let* ((rest (substring term (match-end 0)))
		   (minus (and (match-end 1)
			       (equal (match-string 1 term) "-")))
		   ;; Bind the whole query term to `tag' and use that
		   ;; variable for a tag regexp match in [2] or as an
		   ;; exact tag match in [3].
		   (tag (match-string 2 term))
		   (regexp (eq (string-to-char tag) ?{))
		   (propp (match-end 5))
		   (mm
		    (cond
		     (regexp			; [2]
                      `(with-syntax-table org-mode-tags-syntax-table
                         (org-match-any-p ,(substring tag 1 -1) tags-list)))
		     (propp
		      (let* (;; Determine property name.
                             (pn (upcase
                                  (save-match-data
                                    (replace-regexp-in-string
                                     "\\\\\\(.\\)" "\\1"
                                     (match-string 5 term)
                                     t nil))))
                             ;; Convert property name to an Elisp
			     ;; accessor for that property (aka. as
			     ;; getter value).  Symbols LEVEL and TODO
			     ;; referenced below get bound by the
			     ;; matcher that this function returns.
			     (gv (pcase pn
				   ("LEVEL"
                                    '(number-to-string level))
				   ("CATEGORY"
				    '(org-get-category (point)))
				   ("TODO" 'todo)
				   (p `(org-cached-entry-get nil ,p))))
			     ;; Determine operand (aka. property
			     ;; value).
			     (pv (match-string 8 term))
			     ;; Determine type of operand.  Note that
			     ;; these are not exclusive: Any TIMEP is
			     ;; also STRP.
			     (regexp (eq (string-to-char pv) ?{))
			     (strp (eq (string-to-char pv) ?\"))
			     (timep (string-match-p "^\"[[<]\\(?:[0-9]+\\|now\\|today\\|tomorrow\\|[+-][0-9]+[dmwy]\\).*[]>]\"$" pv))
			     ;; Massage operand.  TIMEP must come
			     ;; before STRP.
			     (pv (cond (regexp (substring pv 1 -1))
				       (timep  (org-matcher-time
						(substring pv 1 -1)))
				       (strp   (substring pv 1 -1))
				       (t      pv)))
			     ;; Convert operator to Elisp.
			     (po (org-op-to-function (match-string 6 term)
						     (if timep 'time strp)))
			     ;; Convert whole property term to Elisp.
			     (pt (cond ((and regexp (eq po '/=))
					`(not (string-match ,pv (or ,gv ""))))
				       (regexp `(string-match ,pv (or ,gv "")))
				       (strp `(,po (or ,gv "") ,pv))
				       (t
					`(,po
					  (string-to-number (or ,gv ""))
					  ,(string-to-number pv)))))
			     ;; Respect the star after the operand.
			     (pt (if (match-end 7) `(and ,gv ,pt) pt)))
			pt))
		     (t `(member ,tag tags-list))))) ; [3]
	      (push (if minus `(not ,mm) mm) tagsmatcher)
	      (setq term rest)))
	  (push `(and ,@tagsmatcher) orlist)
	  (setq tagsmatcher nil))
	(setq tagsmatcher `(progn (setq org-cached-props nil) (or ,@orlist)))))

    ;; Make the TODO matcher.
    (when (org-string-nw-p todomatch)
      (let ((orlist nil))
	(dolist (term (org-split-string todomatch "|"))
	  (while (string-match re term)
	    (let* ((minus (and (match-end 1)
			       (equal (match-string 1 term) "-")))
		   (kwd (match-string 2 term))
		   (regexp (eq (string-to-char kwd) ?{))
		   (mm (if regexp `(string-match ,(substring kwd 1 -1) todo)
			 `(equal todo ,kwd))))
	      (push (if minus `(not ,mm) mm) todomatcher))
	    (setq term (substring term (match-end 0))))
	  (push (if (> (length todomatcher) 1)
		    (cons 'and todomatcher)
		  (car todomatcher))
		orlist)
	  (setq todomatcher nil))
	(setq todomatcher (cons 'or orlist))))

    ;; Return the string and function of the matcher.  If no
    ;; tags-specific or todo-specific matcher exists, match
    ;; everything.
    (let ((matcher (if (and tagsmatcher todomatcher)
		       `(and ,tagsmatcher ,todomatcher)
		     (or tagsmatcher todomatcher t))))
      (when org--matcher-tags-todo-only
	(setq matcher `(and (member todo org-not-done-keywords) ,matcher)))
      (cons match0 `(lambda (todo tags-list level) ,matcher)))))

(defun org--tags-expand-group (group tag-groups expanded)
  "Recursively expand all tags in GROUP, according to TAG-GROUPS.
TAG-GROUPS is the list of groups used for expansion.  EXPANDED is
an accumulator used in recursive calls."
  (dolist (tag group)
    (unless (member tag expanded)
      (let ((group (assoc tag tag-groups)))
	(push tag expanded)
	(when group
	  (setq expanded
		(org--tags-expand-group (cdr group) tag-groups expanded))))))
  expanded)

(defun org-tags-expand (match &optional single-as-list)
  "Expand group tags in MATCH.

This replaces every group tag in MATCH with a regexp tag search.
For example, a group tag \"Work\" defined as { Work : Lab Conf }
will be replaced like this:

   Work =>  {\\<\\(?:Work\\|Lab\\|Conf\\)\\>}
  +Work => +{\\<\\(?:Work\\|Lab\\|Conf\\)\\>}
  -Work => -{\\<\\(?:Work\\|Lab\\|Conf\\)\\>}

Replacing by a regexp preserves the structure of the match.
E.g., this expansion

  Work|Home => {\\(?:Work\\|Lab\\|Conf\\}|Home

will match anything tagged with \"Lab\" and \"Home\", or tagged
with \"Conf\" and \"Home\" or tagged with \"Work\" and \"Home\".

A group tag in MATCH can contain regular expressions of its own.
For example, a group tag \"Proj\" defined as { Proj : {P@.+} }
will be replaced like this:

   Proj => {\\<\\(?:Proj\\)\\>\\|P@.+}

When the optional argument SINGLE-AS-LIST is non-nil, MATCH is
assumed to be a single group tag, and the function will return
the list of tags in this group."
  (unless (org-string-nw-p match) (error "Invalid match tag: %S" match))
  (let ((tag-groups
         (or org-tag-groups-alist-for-agenda org-tag-groups-alist)))
    (cond
     (single-as-list (org--tags-expand-group (list match) tag-groups nil))
     (org-group-tags
      (let* ((case-fold-search t)
	     (group-keys (mapcar #'car tag-groups))
	     (key-regexp (concat "\\([+-]?\\)" (regexp-opt group-keys 'words)))
	     (return-match match))
	;; Mark regexp-expressions in the match-expression so that we
	;; do not replace them later on.
	(let ((s 0))
	  (while (string-match "{.+?}" return-match s)
	    (setq s (match-end 0))
	    (add-text-properties
	     (match-beginning 0) (match-end 0) '(regexp t) return-match)))
	;; For each tag token found in MATCH, compute a regexp and  it
	(with-syntax-table org-mode-tags-syntax-table
	  (replace-regexp-in-string
	   key-regexp
	   (lambda (m)
	     (if (get-text-property (match-beginning 2) 'regexp m)
		 m			;regexp tag: ignore
	       (let* ((operator (match-string 1 m))
		      (tag-token (let ((tag (match-string 2 m)))
				   (list tag)))
		      regexp-tags regular-tags)
		 ;; Partition tags between regexp and regular tags.
		 ;; Remove curly bracket syntax from regexp tags.
		 (dolist (tag (org--tags-expand-group tag-token tag-groups nil))
		   (save-match-data
		     (if (string-match "{\\(.+?\\)}" tag)
			 (push (match-string 1 tag) regexp-tags)
		       (push tag regular-tags))))
		 ;; Replace tag token by the appropriate regexp.
		 ;; Regular tags need to be regexp-quoted, whereas
		 ;; regexp-tags are inserted as-is.
		 (let ((regular (regexp-opt regular-tags))
		       (regexp (mapconcat #'identity regexp-tags "\\|")))
		   (concat operator
			   (cond
			    ((null regular-tags) (format "{%s}" regexp))
			    ((null regexp-tags) (format "{\\<%s\\>}" regular))
			    (t (format "{\\<%s\\>\\|%s}" regular regexp))))))))
	   return-match
	   t t))))
     (t match))))

(defun org-op-to-function (op &optional stringp)
  "Turn an operator into the appropriate function."
  (setq op
	(cond
	 ((equal  op   "<"            ) '(<     org-string<  org-time<))
	 ((equal  op   ">"            ) '(>     org-string>  org-time>))
	 ((member op '("<=" "=<"     )) '(<=    org-string<= org-time<=))
	 ((member op '(">=" "=>"     )) '(>=    org-string>= org-time>=))
	 ((member op '("="  "=="     )) '(=     string=      org-time=))
	 ((member op '("<>" "!=" "/=")) '(/=    org-string<> org-time<>))))
  (nth (if (eq stringp 'time) 2 (if stringp 1 0)) op))

(defvar org-add-colon-after-tag-completion nil)  ;; dynamically scoped param
(defvar org-tags-overlay (make-overlay 1 1))
(delete-overlay org-tags-overlay)

(defun org-add-prop-inherited (s)
  (propertize s 'inherited t))

(defun org-toggle-tag (tag &optional onoff)
  "Toggle the tag TAG for the current line.
If ONOFF is `on' or `off', don't toggle but set to this state."
  (save-excursion
    (org-back-to-heading t)
    (let ((current
	   ;; Reverse the tags list so any new tag is appended to the
	   ;; current list of tags.
	   (nreverse (org-get-tags nil t)))
	  res)
      (pcase onoff
	(`off (setq current (delete tag current)))
	((or `on (guard (not (member tag current))))
	 (setq res t)
	 (cl-pushnew tag current :test #'equal))
	(_ (setq current (delete tag current))))
      (org-set-tags (nreverse current))
      res)))

(defun org--align-tags-here (to-col)
  "Align tags on the current headline to TO-COL.
Assume point is on a headline.  Preserve point when aligning
tags."
  (when (org-match-line org-tag-line-re)
    (let* ((tags-start (match-beginning 1))
	   (blank-start (save-excursion
			  (goto-char tags-start)
			  (skip-chars-backward " \t")
			  (point)))
	   (new (max (if (>= to-col 0) to-col
		       (- (abs to-col) (string-width (match-string 1))))
		     ;; Introduce at least one space after the heading
		     ;; or the stars.
		     (save-excursion
		       (goto-char blank-start)
		       (1+ (current-column)))))
	   (current
	    (save-excursion (goto-char tags-start) (current-column)))
	   (origin (point-marker))
	   (column (current-column))
	   (in-blank? (and (> origin blank-start) (<= origin tags-start))))
      (when (/= new current)
	(delete-region blank-start tags-start)
	(goto-char blank-start)
	(let ((indent-tabs-mode nil)) (indent-to new))
	;; Try to move back to original position.  If point was in the
	;; blanks before the tags, ORIGIN marker is of no use because
	;; it now points to BLANK-START.  Use COLUMN instead.
	(if in-blank? (org-move-to-column column) (goto-char origin))))))

(defun org-set-tags-command (&optional arg)
  "Set the tags for the current visible entry.

When called with `\\[universal-argument]' prefix argument ARG, \
realign all tags
in the current buffer.

When called with `\\[universal-argument] \\[universal-argument]' prefix argument, \
unconditionally do not
offer the fast tag selection interface.

If a region is active, set tags in the region according to the
setting of `org-loop-over-headlines-in-active-region'.

This function is for interactive use only;
in Lisp code use `org-set-tags' instead."
  (interactive "P")
  (let ((org-use-fast-tag-selection
	 (unless (equal '(16) arg) org-use-fast-tag-selection)))
    (cond
     ((equal '(4) arg) (org-align-tags t))
     ((and (org-region-active-p) org-loop-over-headlines-in-active-region)
      (let ((cl (if (eq org-loop-over-headlines-in-active-region 'start-level)
		    'region-start-level 'region))
            org-loop-over-headlines-in-active-region) ;  hint: infinite recursion.
	(org-map-entries
	 #'org-set-tags-command
	 nil cl
	 (lambda () (when (org-invisible-p) (org-end-of-subtree nil t))))))
     (t
      (save-excursion
        ;; FIXME: We need to add support setting #+FILETAGS.
        (when (org-before-first-heading-p)
          (user-error "Setting file tags is not supported yet"))
	(org-back-to-heading)
	(let* ((all-tags (org-get-tags))
               (local-table (or org-current-tag-alist (org-get-buffer-tags)))
	       (table (setq org-last-tags-completion-table
                            (append
                             ;; Put local tags in front.
                             local-table
                             (cl-set-difference
			      (org--tag-add-to-alist
			       (and org-complete-tags-always-offer-all-agenda-tags
				    (org-global-tags-completion-table
				     (org-agenda-files)))
			       local-table)
                              local-table))))
	       (current-tags
		(cl-remove-if (lambda (tag) (get-text-property 0 'inherited tag))
			      all-tags))
	       (inherited-tags
		(cl-remove-if-not (lambda (tag) (get-text-property 0 'inherited tag))
				  all-tags))
	       (tags
		(replace-regexp-in-string
		 ;; Ignore all forbidden characters in tags.
		 "[^[:alnum:]_@#%]+" ":"
		 (if (or (eq t org-use-fast-tag-selection)
			 (and org-use-fast-tag-selection
			      (delq nil (mapcar #'cdr table))))
		     (org-fast-tag-selection
		      current-tags
		      inherited-tags
		      table
		      (and org-fast-tag-selection-include-todo org-todo-key-alist))
		   (let ((org-add-colon-after-tag-completion (< 1 (length table)))
                         (crm-separator "[ \t]*:[ \t]*"))
		     (mapconcat #'identity
                                (completing-read-multiple
			         "Tags: "
			         org-last-tags-completion-table
			         nil nil (org-make-tag-string current-tags)
			         'org-tags-history)
                                ":"))))))
	  (org-set-tags tags)))))
    ;; `save-excursion' may not replace the point at the right
    ;; position.
    (when (and (save-excursion (skip-chars-backward "*") (bolp))
	       (looking-at-p " "))
      (forward-char))))

(defun org-align-tags (&optional all)
  "Align tags in current entry.
When optional argument ALL is non-nil, align all tags in the
visible part of the buffer."
  (let ((get-indent-column
	 (lambda ()
	   (let ((offset (if (bound-and-true-p org-indent-mode)
                             (save-excursion
                               (org-back-to-heading-or-point-min)
                               (length
                                (get-text-property
                                 (line-end-position)
                                 'line-prefix)))
			   0)))
	     (+ org-tags-column
		(if (> org-tags-column 0) (- offset) offset))))))
    (if (and (not all) (org-at-heading-p))
	(org--align-tags-here (funcall get-indent-column))
      (save-excursion
	(if all
	    (progn
	      (goto-char (point-min))
	      (while (re-search-forward org-tag-line-re nil t)
		(org--align-tags-here (funcall get-indent-column))))
	  (org-back-to-heading t)
	  (org--align-tags-here (funcall get-indent-column)))))))

(defun org-set-tags (tags)
  "Set the tags of the current entry to TAGS, replacing current tags.

TAGS may be a tags string like \":aa:bb:cc:\", or a list of tags.
If TAGS is nil or the empty string, all tags are removed.

This function assumes point is on a headline."
  (org-with-wide-buffer
   (org-fold-core-ignore-modifications
     (let ((tags (pcase tags
		   ((pred listp) tags)
		   ((pred stringp) (split-string (org-trim tags) ":" t))
		   (_ (error "Invalid tag specification: %S" tags))))
	   (old-tags (org-get-tags nil t))
	   (tags-change? nil))
       (when (functionp org-tags-sort-function)
         (setq tags (sort tags org-tags-sort-function)))
       (setq tags-change? (not (equal tags old-tags)))
       (when tags-change?
         ;; Delete previous tags and any trailing white space.
         (goto-char (if (org-match-line org-tag-line-re) (match-beginning 1)
		      (line-end-position)))
         (skip-chars-backward " \t")
         (delete-region (point) (line-end-position))
         ;; Deleting white spaces may break an otherwise empty headline.
         ;; Re-introduce one space in this case.
         (unless (org-at-heading-p) (insert " "))
         (when tags
	   (save-excursion (insert-and-inherit " " (org-make-tag-string tags)))
	   ;; When text is being inserted on an invisible region
	   ;; boundary, it can be inadvertently sucked into
	   ;; invisibility.
	   (unless (org-invisible-p (line-beginning-position))
	     (org-fold-region (point) (line-end-position) nil 'outline))))
       ;; Align tags, if any.
       (when tags (org-align-tags))
       (when tags-change? (run-hooks 'org-after-tags-change-hook))))))

(defun org-change-tag-in-region (beg end tag off)
  "Add or remove TAG for each entry in the region.
This works in the agenda, and also in an Org buffer."
  (interactive
   (list (region-beginning) (region-end)
	 (let ((org-last-tags-completion-table
		(if (derived-mode-p 'org-mode)
		    (org--tag-add-to-alist
		     (org-get-buffer-tags)
		     (org-global-tags-completion-table))
		  (org-global-tags-completion-table))))
	   (completing-read
	    "Tag: " org-last-tags-completion-table nil nil nil
	    'org-tags-history))
	 (progn
	   (message "[s]et or [r]emove? ")
	   (equal (read-char-exclusive) ?r))))
  (deactivate-mark)
  (let ((agendap (equal major-mode 'org-agenda-mode))
	l1 l2 m buf pos newhead (cnt 0))
    (goto-char end)
    (setq l2 (1- (org-current-line)))
    (goto-char beg)
    (setq l1 (org-current-line))
    (cl-loop for l from l1 to l2 do
	     (org-goto-line l)
	     (setq m (get-text-property (point) 'org-hd-marker))
	     (when (or (and (derived-mode-p 'org-mode) (org-at-heading-p))
		       (and agendap m))
	       (setq buf (if agendap (marker-buffer m) (current-buffer))
		     pos (if agendap m (point)))
	       (with-current-buffer buf
		 (save-excursion
		   (save-restriction
		     (goto-char pos)
		     (setq cnt (1+ cnt))
		     (org-toggle-tag tag (if off 'off 'on))
		     (setq newhead (org-get-heading)))))
	       (and agendap (org-agenda-change-all-lines newhead m))))
    (message "Tag :%s: %s in %d headings" tag (if off "removed" "set") cnt)))

(defun org-tags-completion-function (string _predicate &optional flag)
  "Complete tag STRING.
FLAG specifies the type of completion operation to perform.  This
function is passed as a collection function to `completing-read',
which see."
  (let ((completion-ignore-case nil)	;tags are case-sensitive
	(confirm (lambda (x) (stringp (car x))))
	(prefix ""))
    (when (string-match "^\\(.*[-+:&,|]\\)\\([^-+:&,|]*\\)$" string)
      (setq prefix (match-string 1 string))
      (setq string (match-string 2 string)))
    (pcase flag
      (`t (all-completions string org-last-tags-completion-table confirm))
      (`lambda (assoc string org-last-tags-completion-table)) ;exact match?
      (`nil
       (pcase (try-completion string org-last-tags-completion-table confirm)
	 ((and completion (pred stringp))
	  (concat prefix
		  completion
		  (if (and org-add-colon-after-tag-completion
			   (assoc completion org-last-tags-completion-table))
		      ":"
		    "")))
	 (completion completion)))
      (_ nil))))

(defun org-fast-tag-insert (kwd tags face &optional end)
  "Insert KWD, and the TAGS, the latter with face FACE.
Also insert END."
  (insert (format "%-12s" (concat kwd ":"))
	  (org-add-props (mapconcat 'identity tags " ") nil 'face face)
	  (or end "")))

(defun org-fast-tag-show-exit (flag)
  (save-excursion
    (org-goto-line 3)
    (when (re-search-forward "[ \t]+Next change exits" (line-end-position) t)
      (replace-match ""))
    (when flag
      (end-of-line 1)
      (org-move-to-column (- (window-width) 19) t)
      (insert (org-add-props " Next change exits" nil 'face 'org-warning)))))

(defun org-set-current-tags-overlay (current prefix)
  "Add an overlay to CURRENT tag with PREFIX."
  (let ((s (org-make-tag-string current)))
    (put-text-property 0 (length s) 'face '(secondary-selection org-tag) s)
    (org-overlay-display org-tags-overlay (concat prefix s))))

(defun org--add-or-remove-tag (tag current-tags &optional groups)
  "Add or remove TAG entered by user to/from CURRENT-TAGS.
Return the modified CURRENT-TAGS.

When TAG is present in CURRENT-TAGS, remove it.  Otherwise, add it.
When TAG is a part of a tag group from GROUPS, make sure that no
exclusive tags from the same group remain in CURRENT-TAGS.

CURRENT-TAGS may be modified by side effect."
  (if (member tag current-tags)
      ;; Remove the tag.
      (delete tag current-tags)
    ;; Add the tag.  If the tag is from a tag
    ;; group, exclude selected alternative tags
    ;; from the group, if any.
    (dolist (g groups)
      (when (member tag g)
	(dolist (x g) (setq current-tags (delete x current-tags)))))
    (cons tag current-tags)))

(defvar org-last-tag-selection-key nil)
(defun org-fast-tag-selection (current-tags inherited-tags tag-table &optional todo-table)
  "Fast tag selection with single keys.
CURRENT-TAGS is the current list of tags in the headline,
INHERITED-TAGS is the list of inherited tags, and TAG-TABLE is an
alist of tags and corresponding keys, possibly with grouping
information.  TODO-TABLE is a similar table with TODO keywords, should
these have keys assigned to them.
If the keys are nil, a-z are automatically assigned.
Returns the new tags string, or nil to not change the current settings."
  (let* (;; Combined alist of all the tags and todo keywords.
         (tag-alist (append tag-table todo-table))
         ;; Max width occupied by a single tag record in the completion buffer.
	 (field-width
          (+ 3 ; keep space for "[c]" binding.
             1 ; ensure that there is at least one space between adjacent tag fields.
             3 ; keep space for group tag " : " delimiter.
             ;; The longest tag.
             (if (null tag-alist) 0
	       (apply #'max
		      (mapcar (lambda (x)
			        (if (stringp (car x)) (string-width (car x))
			          0))
			      tag-alist)))))
	 (origin-buffer (current-buffer))
	 (expert-interface (eq org-fast-tag-selection-single-key 'expert))
         ;; Tag completion table, for normal completion (<TAB>).
	 (tab-tags nil)
	 (inherited-face 'org-done)
	 (current-face 'org-todo)
         ;; Characters available for auto-assignment.
         (tag-binding-char-list org--fast-tag-selection-keys)
         (tag-binding-chars-left org-fast-tag-selection-maximum-tags)
         field-number ; current tag column in the completion buffer.
         tag-binding-spec ; Alist element.
         current-tag current-tag-char auto-tag-char
         tag-table-local ; table holding all the displayed tags together with auto-assigned bindings.
         input-char rtn
	 ov-start ov-end ov-prefix
	 (exit-after-next org-fast-tag-selection-single-key)
	 (done-keywords org-done-keywords)
	 groups ingroup intaggroup)
    ;; Calculate the number of tags with explicit user bindings + tags in groups.
    ;; These tags will be displayed unconditionally.  Other tags will
    ;; be displayed only when there are free bindings left according
    ;; to `org-fast-tag-selection-maximum-tags'.
    (dolist (tag-binding-spec tag-alist)
      (pcase tag-binding-spec
        (`((or :startgroup :startgrouptag) . _)
         (setq ingroup t))
        (`((or :endgroup :endgrouptag) . _)
         (setq ingroup nil))
        ((guard (cdr tag-binding-spec))
         (cl-decf tag-binding-chars-left))
        (`((or :newline :grouptags))) ; pass
        ((guard ingroup)
         (cl-decf tag-binding-chars-left))))
    (setq ingroup nil) ; It t, it means malformed tag alist.  Reset just in case.
    ;; Move global `org-tags-overlay' overlay to current heading.
    ;; Calls to `org-set-current-tags-overlay' will take care about
    ;; updating the overlay text.
    ;; FIXME: What if we are setting file tags?
    (save-excursion
      (forward-line 0)
      (if (looking-at org-tag-line-re)
	  (setq ov-start (match-beginning 1)
		ov-end (match-end 1)
		ov-prefix "")
        (setq ov-start (1- (line-end-position))
	      ov-end (1+ ov-start))
	(skip-chars-forward "^\n\r")
	(setq ov-prefix
	      (concat
	       (buffer-substring (1- (point)) (point))
	       (if (> (current-column) org-tags-column)
		   " "
		 (make-string (- org-tags-column (current-column)) ?\ ))))))
    (move-overlay org-tags-overlay ov-start ov-end)
    ;; Highlight tags overlay in Org buffer.
    (org-set-current-tags-overlay current-tags ov-prefix)
    ;; Display tag selection dialogue, read the user input, and return.
    (save-excursion
      (save-window-excursion
        ;; Select tag list buffer, and display it unless EXPERT-INTERFACE.
	(if expert-interface
	    (set-buffer (get-buffer-create " *Org tags*"))
	  (delete-other-windows)
	  (set-window-buffer (split-window-vertically) (get-buffer-create " *Org tags*"))
	  (switch-to-buffer-other-window " *Org tags*"))
        ;; Fill text in *Org tags* buffer.
	(erase-buffer)
	(setq-local org-done-keywords done-keywords)
        ;; Insert current tags.
	(org-fast-tag-insert "Inherited" inherited-tags inherited-face "\n")
	(org-fast-tag-insert "Current" current-tags current-face "\n\n")
        ;; Display whether next change exits selection dialogue.
	(org-fast-tag-show-exit exit-after-next)
        ;; Show tags, tag groups, and bindings in a grid.
        ;; Each tag in the grid occupies FIELD-WIDTH characters.
        ;; The tags are filled up to `window-width'.
	(setq field-number 0)
	(while (setq tag-binding-spec (pop tag-alist))
	  (pcase tag-binding-spec
            ;; Display tag groups on starting from a new line.
	    (`(:startgroup . ,group-name)
	     (push '() groups) (setq ingroup t)
	     (unless (zerop field-number)
	       (setq field-number 0)
	       (insert "\n"))
	     (insert (if group-name (format "%s: " group-name) "") "{ "))
            ;; Tag group end is followed by newline.
	    (`(:endgroup . ,group-name)
	     (setq ingroup nil field-number 0)
	     (insert "}" (if group-name (format " (%s) " group-name) "") "\n"))
            ;; Group tags start at newline.
	    (`(:startgrouptag)
	     (setq intaggroup t)
	     (unless (zerop field-number)
	       (setq field-number 0)
	       (insert "\n"))
	     (insert "[ "))
            ;; Group tags end with a newline.
	    (`(:endgrouptag)
	     (setq intaggroup nil field-number 0)
	     (insert "]\n"))
	    (`(:newline)
	     (unless (zerop field-number)
	       (setq field-number 0)
	       (insert "\n")
	       (setq tag-binding-spec (car tag-alist))
	       (while (equal (car tag-alist) '(:newline))
		 (insert "\n")
		 (setq tag-alist (cdr tag-alist)))))
	    (`(:grouptags)
             ;; Previous tag is the tag representing the following group.
             ;; It was inserted as "[c] TAG " with spaces filling up
             ;; to the field width. Replace the trailing spaces with
             ;; " : ", keeping to total field width unchanged.
             (delete-char -3)
             (insert " : "))
	    (_
	     (setq current-tag (copy-sequence (car tag-binding-spec))) ; will be modified by side effect
             ;; Compute tag binding.
	     (if (cdr tag-binding-spec)
                 ;; Custom binding.
		 (setq current-tag-char (cdr tag-binding-spec))
               ;; No auto-binding.  Update `tag-binding-chars-left'.
               (unless (or ingroup intaggroup) ; groups are always displayed.
                 (cl-decf tag-binding-chars-left))
	       ;; Automatically assign a character according to the tag string.
	       (setq auto-tag-char
                     (string-to-char
		      (downcase (substring
				 current-tag (if (= (string-to-char current-tag) ?@) 1 0)))))
	       (if (or (rassoc auto-tag-char tag-table-local)
                       (rassoc auto-tag-char tag-table))
                   ;; Already bound.  Assign first unbound char instead.
                   (progn
		     (while (and tag-binding-char-list
                                 (or (rassoc (car tag-binding-char-list) tag-table-local)
                                     (rassoc (car tag-binding-char-list) tag-table)))
		       (pop tag-binding-char-list))
                     (setq current-tag-char (or (car tag-binding-char-list)
                                                ;; Fall back to display "[ ]".
                                                ?\s)))
                 ;; Can safely use binding derived from the tag string.
		 (setq current-tag-char auto-tag-char)))
             ;; Record all the tags in the group.  `:startgroup'
             ;; clause earlier added '() to `groups'.
             ;; `(car groups)' now contains the tag list for the
             ;; current group.
	     (when ingroup (push current-tag (car groups)))
             ;; Compute tag face.
	     (setq current-tag (org-add-props current-tag nil 'face
				              (cond
				               ((not (assoc current-tag tag-table))
                                                ;; The tag is from TODO-TABLE.
				                (org-get-todo-face current-tag))
				               ((member current-tag current-tags) current-face)
				               ((member current-tag inherited-tags) inherited-face))))
	     (when (equal (caar tag-alist) :grouptags)
	       (org-add-props current-tag nil 'face 'org-tag-group))
             ;; Respect `org-fast-tag-selection-maximum-tags'.
             (when (or ingroup intaggroup (cdr tag-binding-spec) (> tag-binding-chars-left 0))
               ;; Insert the tag.
	       (when (and (zerop field-number) (not ingroup) (not intaggroup)) (insert "  "))
	       (insert "[" current-tag-char "] " current-tag
                       ;; Fill spaces up to FIELD-WIDTH.
                       (make-string
		        (- field-width 4 (length current-tag)) ?\ ))
               ;; Record tag and the binding/auto-binding.
	       (push (cons current-tag current-tag-char) tag-table-local)
               ;; Last column in the row.
	       (when (= (cl-incf field-number) (/ (- (window-width) 4) field-width))
	         (unless (memq (caar tag-alist) '(:endgroup :endgrouptag))
	           (insert "\n")
	           (when (or ingroup intaggroup) (insert "  ")))
	         (setq field-number 0))))))
        (insert "\n")
        ;; Keep the tags in order displayed.  Will be used later for sorting.
        (setq tag-table-local (nreverse tag-table-local))
        (goto-char (point-min))
        (unless expert-interface (org-fit-window-to-buffer))
        ;; Read user input.
        (setq rtn
	      (catch 'exit
	        (while t
		  (message "[a-z..]:toggle [SPC]:clear [RET]:accept [TAB]:edit [!] %sgroups%s"
			   (if (not groups) "no " "")
			   (if expert-interface " [C-c]:window" (if exit-after-next " [C-c]:single" " [C-c]:multi")))
		  (setq input-char
                        (let ((inhibit-quit t)) ; intercept C-g.
                          (read-char-exclusive)))
                  ;; FIXME: Global variable used by `org-beamer-select-environment'.
                  ;; Should factor it out.
		  (setq org-last-tag-selection-key input-char)
		  (pcase input-char
                    ;; <RET>
                    (?\r (throw 'exit t))
                    ;; Toggle tag groups.
		    (?!
		     (setq groups (not groups))
		     (goto-char (point-min))
		     (while (re-search-forward "[{}]" nil t) (replace-match " ")))
                    ;; Toggle expert interface.
		    (?\C-c
		     (if (not expert-interface)
		         (org-fast-tag-show-exit
		          (setq exit-after-next (not exit-after-next)))
		       (setq expert-interface nil)
		       (delete-other-windows)
		       (set-window-buffer (split-window-vertically) " *Org tags*")
		       (switch-to-buffer-other-window " *Org tags*")
		       (org-fit-window-to-buffer)))
                    ;; Quit.
		    ((or ?\C-g
		         (and ?q (guard (not (rassoc input-char tag-table-local)))))
		     (delete-overlay org-tags-overlay)
                     ;; Quit as C-g does.
		     (keyboard-quit))
                    ;; Clear tags.
		    (?\s
		     (setq current-tags nil)
		     (when exit-after-next (setq exit-after-next 'now)))
                    ;; Use normal completion.
		    (?\t
                     ;; Compute completion table, unless already computed.
                     (unless tab-tags
                       (setq tab-tags
                             (delq nil
                                   (mapcar (lambda (x)
                                             (let ((item (car-safe x)))
                                               (and (stringp item)
                                                    (list item))))
                                           ;; Complete using all tags; tags from current buffer first.
                                           (org--tag-add-to-alist
                                            (with-current-buffer origin-buffer
                                              (org-get-buffer-tags))
                                            tag-table)))))
                     (setq current-tag (completing-read "Tag: " tab-tags))
		     (when (string-match "\\S-" current-tag)
		       (cl-pushnew (list current-tag) tab-tags :test #'equal)
                       (setq current-tags (org--add-or-remove-tag current-tag current-tags groups)))
		     (when exit-after-next (setq exit-after-next 'now)))
                    ;; INPUT-CHAR is for a todo keyword.
		    ((let (and todo-keyword (guard todo-keyword))
                       (car (rassoc input-char todo-table)))
		     (with-current-buffer origin-buffer
		       (save-excursion (org-todo todo-keyword)))
		     (when exit-after-next (setq exit-after-next 'now)))
                    ;; INPUT-CHAR is for a tag.
		    ((let (and tag (guard tag))
                       (car (rassoc input-char tag-table-local)))
                     (setq current-tags (org--add-or-remove-tag tag current-tags groups))
		     (when exit-after-next (setq exit-after-next 'now))))
		  ;; Create a sorted tag list.
		  (setq current-tags
		        (sort current-tags
			      (lambda (a b)
                                ;; b is after a.
                                ;; `memq' returns tail of the list after the match + the match.
			        (assoc b (cdr (memq (assoc a tag-table-local) tag-table-local))))))
                  ;; Exit when we are set to exit immediately.
		  (when (eq exit-after-next 'now) (throw 'exit t))
                  ;; Continue setting tags in the loop.
                  ;; Update the currently active tags indication in the completion buffer.
		  (goto-char (point-min))
		  (forward-line 1)
                  (delete-region (point) (line-end-position))
		  (org-fast-tag-insert "Current" current-tags current-face)
                  ;; Update the active tags displayed in the overlay in Org buffer.
		  (org-set-current-tags-overlay current-tags ov-prefix)
                  ;; Update tag faces in the displayed tag grid.
		  (let ((tag-re (concat "\\[.\\] \\(" org-tag-re "\\)")))
		    (while (re-search-forward tag-re nil t)
		      (let ((tag (match-string 1)))
		        (add-text-properties
		         (match-beginning 1) (match-end 1)
		         (list 'face
			       (cond
			        ((member tag current-tags) current-face)
			        ((member tag inherited-tags) inherited-face)
			        (t 'default)))))))
		  (goto-char (point-min)))))
        ;; Clear the tag overlay in Org buffer.
        (delete-overlay org-tags-overlay)
        ;; Return the new tag list.
        (if rtn
	    (mapconcat 'identity current-tags ":")
	  nil)))))

(defun org-make-tag-string (tags)
  "Return string associated to TAGS.
TAGS is a list of strings."
  (if (null tags) ""
    (format ":%s:" (mapconcat #'identity tags ":"))))

(defun org--get-local-tags (&optional epom)
  "Return list of tags for headline at EPOM.
When EPOM is non-nil, it should be a marker, point, or element
representing headline."
  ;; If we do not explicitly copy the result, reference would
  ;; be returned and cache element might be modified directly.
  (mapcar
   #'copy-sequence
   (org-element-property
    :tags
    (org-element-lineage
     (org-element-at-point epom)
     '(headline inlinetask)
     'with-self))))

(defun org-get-tags (&optional epom local)
  "Get the list of tags specified in the headline at EPOM.

When argument EPOM is non-nil, it should be point, marker, or headline
element.

According to `org-use-tag-inheritance', tags may be inherited
from parent headlines, and from the whole document, through
`org-file-tags'.  In this case, the returned list of tags
contains tags in this order: file tags, tags inherited from
parent headlines, local tags.  If a tag appears multiple times,
only the most local tag is returned.

However, when optional argument LOCAL is non-nil, only return
tags specified at the headline.

Inherited tags have the `inherited' text property.

This function may modify the match data."
  (if (and org-trust-scanner-tags
           (or (not epom) (eq epom (point)))
           (not local))
      org-scanner-tags
    (setq epom (org-element-lineage
                (org-element-at-point epom)
                '(headline inlinetask)
                'with-self))
    (let ((ltags (org--get-local-tags epom))
          itags)
      (if (or local (not org-use-tag-inheritance)) ltags
        (setq
         itags
         (mapcar
          #'org-add-prop-inherited
          (org-element-property-inherited :tags epom nil 'acc)))
        (setq itags (append org-file-tags itags))
        (nreverse
	 (delete-dups
	  (nreverse (nconc (org-remove-uninherited-tags itags) ltags))))))))

(defun org-get-buffer-tags ()
  "Get a table of all tags used in the buffer, for completion."
  (let ((hashed (make-hash-table :test #'equal)))
    (org-element-cache-map
     (lambda (el)
       (dolist (tag (org-element-property :tags el))
         ;; Do not carry over the text properties.  They may look
         ;; ugly in the completion.
         (puthash (list (substring-no-properties tag)) t hashed))))
    (dolist (tag org-file-tags) (puthash (list tag) t hashed))
    (hash-table-keys hashed)))

;;;; The mapping API

(defvar org-agenda-skip-comment-trees)
(defvar org-agenda-skip-function)
(defun org-map-entries (func &optional match scope &rest skip)
  "Call FUNC at each headline selected by MATCH in SCOPE.

FUNC is a function or a Lisp form.  The function will be called without
arguments, with the cursor positioned at the beginning of the headline.
The return values of all calls to the function will be collected and
returned as a list.

The call to FUNC will be wrapped into a `save-excursion' form, so FUNC
does not need to preserve point.  After evaluation, the cursor will be
moved to the end of the line (presumably of the headline of the
processed entry) and search continues from there.  Under some
circumstances, this may not produce the wanted results.  For example,
if you have removed (e.g. archived) the current (sub)tree it could
mean that the next entry will be skipped entirely.  In such cases, you
can specify the position from where search should continue by making
FUNC set the variable `org-map-continue-from' to the desired buffer
position.

MATCH is a tags/property/todo match as it is used in the agenda tags view.
Only headlines that are matched by this query will be considered during
the iteration.  When MATCH is nil or t, all headlines will be
visited by the iteration.

SCOPE determines the scope of this command.  It can be any of:

nil     The current buffer, respecting the restriction if any
tree    The subtree started with the entry at point
region  The entries within the active region, if any
region-start-level
        The entries within the active region, but only those at
        the same level than the first one.
file    The current buffer, without restriction
file-with-archives
        The current buffer, and any archives associated with it
agenda  All agenda files
agenda-with-archives
        All agenda files with any archive files associated with them
\(file1 file2 ...)
        If this is a list, all files in the list will be scanned

The remaining args are treated as settings for the skipping facilities of
the scanner.  The following items can be given here:

  archive    skip trees with the archive tag
  comment    skip trees with the COMMENT keyword
  function or Emacs Lisp form:
             will be used as value for `org-agenda-skip-function', so
             whenever the function returns a position, FUNC will not be
             called for that entry and search will continue from the
             position returned

If your function needs to retrieve the tags including inherited tags
at the *current* entry, you can use the value of the variable
`org-scanner-tags' which will be much faster than getting the value
with `org-get-tags'.  If your function gets properties with
`org-entry-properties' at the *current* entry, bind `org-trust-scanner-tags'
to t around the call to `org-entry-properties' to get the same speedup.
Note that if your function moves around to retrieve tags and properties at
a *different* entry, you cannot use these techniques."
  (unless (and (or (eq scope 'region) (eq scope 'region-start-level))
	       (not (org-region-active-p)))
    (let* ((org-agenda-archives-mode nil) ; just to make sure
	   (org-agenda-skip-archived-trees (memq 'archive skip))
	   (org-agenda-skip-comment-trees (memq 'comment skip))
	   (org-agenda-skip-function
	    (car (org-delete-all '(comment archive) skip)))
	   (org-tags-match-list-sublevels t)
	   (start-level (eq scope 'region-start-level))
	   matcher res
	   org-todo-keywords-for-agenda
	   org-done-keywords-for-agenda
	   org-todo-keyword-alist-for-agenda
	   org-tag-alist-for-agenda
	   org--matcher-tags-todo-only)

      (cond
       ((eq match t)   (setq matcher t))
       ((eq match nil) (setq matcher t))
       (t (setq matcher (if match (cdr (org-make-tags-matcher match)) t))))

      (save-excursion
	(save-restriction
	  (cond ((eq scope 'tree)
		 (org-back-to-heading t)
		 (org-narrow-to-subtree)
		 (setq scope nil))
		((and (or (eq scope 'region) (eq scope 'region-start-level))
		      (org-region-active-p))
		 ;; If needed, set start-level to a string like "2"
		 (when start-level
		   (save-excursion
		     (goto-char (region-beginning))
		     (unless (org-at-heading-p) (outline-next-heading))
		     (setq start-level (org-current-level))))
		 (narrow-to-region (region-beginning)
				   (save-excursion
				     (goto-char (region-end))
				     (unless (and (bolp) (org-at-heading-p))
				       (outline-next-heading))
				     (point)))
		 (setq scope nil)))

	  (if (not scope)
	      (progn
                ;; Agenda expects a file buffer.  Skip over refreshing
                ;; agenda cache for non-file buffers.
                (when buffer-file-name
		  (org-agenda-prepare-buffers
		   (and buffer-file-name (list buffer-file-name))))
		(setq res
		      (org-scan-tags
		       func matcher org--matcher-tags-todo-only start-level)))
	    ;; Get the right scope
	    (cond
	     ((and scope (listp scope) (symbolp (car scope)))
	      (setq scope (eval scope t)))
	     ((eq scope 'agenda)
	      (setq scope (org-agenda-files t)))
	     ((eq scope 'agenda-with-archives)
	      (setq scope (org-agenda-files t))
	      (setq scope (org-add-archive-files scope)))
	     ((eq scope 'file)
	      (setq scope (and buffer-file-name (list buffer-file-name))))
	     ((eq scope 'file-with-archives)
	      (setq scope (org-add-archive-files (list (buffer-file-name))))))
	    (org-agenda-prepare-buffers scope)
	    (dolist (file scope)
	      (with-current-buffer (org-find-base-buffer-visiting file)
		(org-with-wide-buffer
		 (goto-char (point-min))
		 (setq res
		       (append
			res
			(org-scan-tags
			 func matcher org--matcher-tags-todo-only)))))))))
      res)))

;;; Properties API

(defconst org-special-properties
  '("ALLTAGS" "BLOCKED" "CLOCKSUM" "CLOCKSUM_T" "CLOSED" "DEADLINE" "FILE"
    "ITEM" "PRIORITY" "SCHEDULED" "TAGS" "TIMESTAMP" "TIMESTAMP_IA" "TODO")
  "The special properties valid in Org mode.
These are properties that are not defined in the property drawer,
but in some other way.")

(defconst org-default-properties
  '("ARCHIVE" "CATEGORY" "SUMMARY" "DESCRIPTION" "CUSTOM_ID"
    "LOCATION" "LOGGING" "COLUMNS" "VISIBILITY"
    "TABLE_EXPORT_FORMAT" "TABLE_EXPORT_FILE"
    "EXPORT_OPTIONS" "EXPORT_TEXT" "EXPORT_FILE_NAME"
    "EXPORT_TITLE" "EXPORT_AUTHOR" "EXPORT_DATE" "UNNUMBERED"
    "ORDERED" "NOBLOCKING" "COOKIE_DATA" "LOG_INTO_DRAWER" "REPEAT_TO_STATE"
    "CLOCK_MODELINE_TOTAL" "STYLE" "HTML_CONTAINER_CLASS"
    "ORG-IMAGE-ACTUAL-WIDTH")
  "Some properties that are used by Org mode for various purposes.
Being in this list makes sure that they are offered for completion.")

(defun org--valid-property-p (property)
  "Non-nil when string PROPERTY is a valid property name."
  (not
   (or (equal property "")
       (string-match-p "\\s-" property))))

(defun org--update-property-plist (key val props)
  "Associate KEY to VAL in alist PROPS.
Modifications are made by side-effect.  Return new alist."
  (let* ((appending (string= (substring key -1) "+"))
	 (key (if appending (substring key 0 -1) key))
	 (old (assoc-string key props t)))
    (if (not old) (cons (cons key val) props)
      (setcdr old (if appending (concat (cdr old) " " val) val))
      props)))

(defun org-get-property-block (&optional beg force)
  "Return the (beg . end) range of the body of the property drawer.
BEG is the beginning of the current subtree or the beginning of
the document if before the first headline.  If it is not given,
it will be found.  If the drawer does not exist, create it if
FORCE is non-nil, or return nil."
  (org-with-wide-buffer
   (let ((beg (cond (beg (goto-char beg))
		    ((or (not (featurep 'org-inlinetask))
			 (org-inlinetask-in-task-p))
		     (org-back-to-heading-or-point-min t) (point))
		    (t (org-with-limited-levels
			(org-back-to-heading-or-point-min t))
		       (point)))))
     ;; Move point to its position according to its positional rules.
     (cond ((org-before-first-heading-p)
	    (while (and (org-at-comment-p) (bolp)) (forward-line)))
	   (t (forward-line)
	      (when (looking-at-p org-planning-line-re) (forward-line))))
     (cond ((looking-at org-property-drawer-re)
	    (forward-line)
	    (cons (point) (progn (goto-char (match-end 0))
				 (line-beginning-position))))
	   (force
	    (goto-char beg)
	    (org-insert-property-drawer)
	    (let ((pos (save-excursion (re-search-forward org-property-drawer-re)
				       (line-beginning-position))))
	      (cons pos pos)))))))

(defun org-at-property-drawer-p ()
  "Non-nil when point is at the first line of a property drawer."
  (org-with-wide-buffer
   (forward-line 0)
   (and (looking-at org-property-drawer-re)
	(or (bobp)
	    (progn
	      (forward-line -1)
	      (cond ((org-at-heading-p))
		    ((looking-at org-planning-line-re)
		     (forward-line -1)
		     (org-at-heading-p))
		    ((looking-at org-comment-regexp)
		     (forward-line -1)
		     (while (and (not (bobp)) (looking-at org-comment-regexp))
		       (forward-line -1))
		     (looking-at org-comment-regexp))
		    (t nil)))))))

(defun org-at-property-p ()
  "Non-nil when point is inside a property drawer.
See `org-property-re' for match data, if applicable."
  (save-excursion
    (forward-line 0)
    (and (looking-at org-property-re)
	 (let ((property-drawer (save-match-data (org-get-property-block))))
	   (and property-drawer
		(>= (point) (car property-drawer))
		(< (point) (cdr property-drawer)))))))

(defun org-property-action ()
  "Do an action on properties."
  (interactive)
  (message "Property Action:  [s]et  [d]elete  [D]elete globally  [c]ompute")
  (let ((c (read-char-exclusive)))
    (cl-case c
      (?s (call-interactively #'org-set-property))
      (?d (call-interactively #'org-delete-property))
      (?D (call-interactively #'org-delete-property-globally))
      (?c (call-interactively #'org-compute-property-at-point))
      (otherwise (user-error "No such property action %c" c)))))

(defun org-inc-effort ()
  "Increment the value of the effort property in the current entry."
  (interactive)
  (org-set-effort t))

(defvar org-clock-effort)       ; Defined in org-clock.el.
(defvar org-clock-current-task) ; Defined in org-clock.el.
(defun org-set-effort (&optional increment value)
  "Set the effort property of the current entry.
If INCREMENT is non-nil, set the property to the next allowed
value.  Otherwise, if optional argument VALUE is provided, use
it.  Eventually, prompt for the new value if none of the previous
variables is set."
  (interactive "P")
  (let* ((allowed (org-property-get-allowed-values nil org-effort-property t))
	 (current (org-entry-get nil org-effort-property))
	 (value
	  (cond
	   (increment
	    (unless allowed (user-error "Allowed effort values are not set"))
	    (or (cl-caadr (member (list current) allowed))
		(user-error "Unknown value %S among allowed values" current)))
	   (value
	    (if (stringp value) value
	      (error "Invalid effort value: %S" value)))
	   (t
	    (let ((must-match
		   (and allowed
			(not (get-text-property 0 'org-unrestricted
						(caar allowed))))))
	      (completing-read "Effort: " allowed nil must-match))))))
    ;; Test whether the value can be interpreted as a duration before
    ;; inserting it in the buffer:
    (org-duration-to-minutes value)
    ;; Maybe update the effort value:
    (unless (equal current value)
      (org-entry-put nil org-effort-property value))
    (when (equal (org-get-heading t t t t)
		 (bound-and-true-p org-clock-current-task))
      (setq org-clock-effort value)
      (org-clock-update-mode-line))
    (message "%s is now %s" org-effort-property value)))

(defun org-entry-properties (&optional epom which)
  "Get all properties of the current entry.

When EPOM is a buffer position, marker, or element, get all properties
from the entry there instead.

This includes the TODO keyword, the tags, time strings for
deadline, scheduled, and clocking, and any additional properties
defined in the entry.

If WHICH is nil or `all', get all properties.  If WHICH is
`special' or `standard', only get that subclass.  If WHICH is
a string, only get that property.

Return value is an alist.  Keys are properties, as upcased
strings."
  (org-with-point-at epom
    (when (and (derived-mode-p 'org-mode)
	       (org-back-to-heading-or-point-min t))
      (catch 'exit
	(let* ((beg (point))
	       (specific (and (stringp which) (upcase which)))
	       (which (cond ((not specific) which)
			    ((member specific org-special-properties) 'special)
			    (t 'standard)))
	       props)
	  ;; Get the special properties, like TODO and TAGS.
	  (when (memq which '(nil all special))
	    (when (or (not specific) (string= specific "CLOCKSUM"))
	      (let ((clocksum (get-text-property (point) :org-clock-minutes)))
		(when clocksum
		  (push (cons "CLOCKSUM" (org-duration-from-minutes clocksum))
			props)))
	      (when specific (throw 'exit props)))
	    (when (or (not specific) (string= specific "CLOCKSUM_T"))
	      (let ((clocksumt (get-text-property (point)
						  :org-clock-minutes-today)))
		(when clocksumt
		  (push (cons "CLOCKSUM_T"
			      (org-duration-from-minutes clocksumt))
			props)))
	      (when specific (throw 'exit props)))
	    (when (or (not specific) (string= specific "ITEM"))
	      (let ((case-fold-search nil))
		(when (looking-at org-complex-heading-regexp)
		  (push (cons "ITEM"
			      (let ((title (match-string-no-properties 4)))
				(if (org-string-nw-p title)
				    (org-remove-tabs title)
				  "")))
			props)))
	      (when specific (throw 'exit props)))
	    (when (or (not specific) (string= specific "TODO"))
	      (let ((case-fold-search nil))
		(when (and (looking-at org-todo-line-regexp) (match-end 2))
		  (push (cons "TODO" (match-string-no-properties 2)) props)))
	      (when specific (throw 'exit props)))
	    (when (or (not specific) (string= specific "PRIORITY"))
	      (push (cons "PRIORITY"
			  (if (looking-at org-priority-regexp)
			      (match-string-no-properties 2)
			    (char-to-string org-priority-default)))
		    props)
	      (when specific (throw 'exit props)))
	    (when (or (not specific) (string= specific "FILE"))
	      (push (cons "FILE" (buffer-file-name (buffer-base-buffer)))
		    props)
	      (when specific (throw 'exit props)))
	    (when (or (not specific) (string= specific "TAGS"))
	      (let ((tags (org-get-tags nil t)))
		(when tags
		  (push (cons "TAGS" (org-make-tag-string tags))
			props)))
	      (when specific (throw 'exit props)))
	    (when (or (not specific) (string= specific "ALLTAGS"))
	      (let ((tags (org-get-tags)))
		(when tags
		  (push (cons "ALLTAGS" (org-make-tag-string tags))
			props)))
	      (when specific (throw 'exit props)))
	    (when (or (not specific) (string= specific "BLOCKED"))
	      (push (cons "BLOCKED" (if (org-entry-blocked-p) "t" "")) props)
	      (when specific (throw 'exit props)))
	    (when (or (not specific)
		      (member specific '("CLOSED" "DEADLINE" "SCHEDULED")))
	      (forward-line)
	      (when (looking-at-p org-planning-line-re)
		(end-of-line)
		(let ((bol (line-beginning-position))
		      ;; Backward compatibility: time keywords used to
		      ;; be configurable (before 8.3).  Make sure we
		      ;; get the correct keyword.
		      (key-assoc `(("CLOSED" . ,org-closed-string)
				   ("DEADLINE" . ,org-deadline-string)
				   ("SCHEDULED" . ,org-scheduled-string))))
		  (dolist (pair (if specific (list (assoc specific key-assoc))
				  key-assoc))
		    (save-excursion
		      (when (search-backward (cdr pair) bol t)
			(goto-char (match-end 0))
			(skip-chars-forward " \t")
			(and (looking-at org-ts-regexp-both)
			     (push (cons (car pair)
					 (match-string-no-properties 0))
				   props)))))))
	      (when specific (throw 'exit props)))
	    (when (or (not specific)
		      (member specific '("TIMESTAMP" "TIMESTAMP_IA")))
	      (let ((find-ts
		     (lambda (end ts)
		       ;; Fix next timestamp before END.  TS is the
		       ;; list of timestamps found so far.
		       (let ((ts ts)
			     (regexp (cond
				      ((string= specific "TIMESTAMP")
				       org-ts-regexp)
				      ((string= specific "TIMESTAMP_IA")
				       org-ts-regexp-inactive)
				      ((assoc "TIMESTAMP_IA" ts)
				       org-ts-regexp)
				      ((assoc "TIMESTAMP" ts)
				       org-ts-regexp-inactive)
				      (t org-ts-regexp-both))))
			 (catch 'next
			   (while (re-search-forward regexp end t)
			     (backward-char)
			     (let ((object (org-element-context)))
			       ;; Accept to match timestamps in node
			       ;; properties, too.
			       (when (org-element-type-p
                                      object '(node-property timestamp))
				 (let ((type
					(org-element-property :type object)))
				   (cond
				    ((and (memq type '(active active-range))
					  (not (equal specific "TIMESTAMP_IA")))
				     (unless (assoc "TIMESTAMP" ts)
				       (push (cons "TIMESTAMP"
						   (org-element-property
						    :raw-value object))
					     ts)
				       (when specific (throw 'exit ts))))
				    ((and (memq type '(inactive inactive-range))
					  (not (string= specific "TIMESTAMP")))
				     (unless (assoc "TIMESTAMP_IA" ts)
				       (push (cons "TIMESTAMP_IA"
						   (org-element-property
						    :raw-value object))
					     ts)
				       (when specific (throw 'exit ts))))))
				 ;; Both timestamp types are found,
				 ;; move to next part.
				 (when (= (length ts) 2) (throw 'next ts)))))
			   ts)))))
		(goto-char beg)
		;; First look for timestamps within headline.
		(let ((ts (funcall find-ts (line-end-position) nil)))
		  (if (= (length ts) 2) (setq props (nconc ts props))
		    ;; Then find timestamps in the section, skipping
		    ;; planning line.
		    (let ((end (save-excursion (outline-next-heading))))
		      (forward-line)
		      (when (looking-at-p org-planning-line-re) (forward-line))
		      (setq props (nconc (funcall find-ts end ts) props))))))))
	  ;; Get the standard properties, like :PROP:.
	  (when (memq which '(nil all standard))
	    ;; If we are looking after a specific property, delegate
	    ;; to `org-entry-get', which is faster.  However, make an
	    ;; exception for "CATEGORY", since it can be also set
	    ;; through keywords (i.e. #+CATEGORY).
	    (if (and specific (not (equal specific "CATEGORY")))
		(let ((value (org-entry-get beg specific nil t)))
		  (throw 'exit (and value (list (cons specific value)))))
	      (let ((range (org-get-property-block beg)))
		(when range
		  (let ((end (cdr range)) seen-base)
		    (goto-char (car range))
		    ;; Unlike to `org--update-property-plist', we
		    ;; handle the case where base values is found
		    ;; after its extension.  We also forbid standard
		    ;; properties to be named as special properties.
		    (while (re-search-forward org-property-re end t)
		      (let* ((key (upcase (match-string-no-properties 2)))
			     (extendp (string-match-p "\\+\\'" key))
			     (key-base (if extendp (substring key 0 -1) key))
			     (value (match-string-no-properties 3)))
			(cond
			 ((member-ignore-case key-base org-special-properties))
			 (extendp
			  (setq props
				(org--update-property-plist key value props)))
			 ((member key seen-base))
			 (t (push key seen-base)
			    (let ((p (assoc-string key props t)))
			      (if p (setcdr p (concat value " " (cdr p)))
				(push (cons key value) props))))))))))))
	  (unless (assoc "CATEGORY" props)
	    (push (cons "CATEGORY" (org-get-category beg)) props)
	    (when (string= specific "CATEGORY") (throw 'exit props)))
	  ;; Return value.
	  props)))))

(defun org--property-local-values (property literal-nil &optional epom)
  "Return value for PROPERTY in current entry or at EPOM.
EPOM can be point, marker, or syntax node.

Value is a list whose car is the base value for PROPERTY and cdr
a list of accumulated values.  Return nil if neither is found in
the entry.  Also return nil when PROPERTY is set to \"nil\",
unless LITERAL-NIL is non-nil."
  (setq epom
        (org-element-lineage
         (org-element-at-point epom)
         '(headline inlinetask org-data)
         'with-self))
  (let* ((base-value  (org-element-property (intern (concat ":" (upcase property)    )) epom))
         (extra-value (org-element-property (intern (concat ":" (upcase property) "+")) epom))
         (extra-value (if (listp extra-value) extra-value (list extra-value)))
         (value (if literal-nil (cons base-value extra-value)
                  (cons (org-not-nil base-value) (org-not-nil extra-value)))))
    (and (not (equal value '(nil))) value)))

(defun org--property-global-or-keyword-value (property literal-nil)
  "Return value for PROPERTY as defined by global properties or by keyword.
Return value is a string.  Return nil if property is not set
globally or by keyword.  Also return nil when PROPERTY is set to
\"nil\", unless LITERAL-NIL is non-nil."
  (let ((global
	 (cdr (or (assoc-string property org-keyword-properties t)
		  (assoc-string property org-global-properties t)
		  (assoc-string property org-global-properties-fixed t)))))
    (if literal-nil global (org-not-nil global))))

(defun org-entry-get (epom property &optional inherit literal-nil)
  "Get value of PROPERTY for entry or content at EPOM.

EPOM is an element, marker, or buffer position.

If INHERIT is non-nil and the entry does not have the property,
then also check higher levels of the hierarchy.  If INHERIT is
the symbol `selective', use inheritance only if the setting in
`org-use-property-inheritance' selects PROPERTY for inheritance.

If the property is present but empty, the return value is the
empty string.  If the property is not present at all, nil is
returned.  In any other case, return the value as a string.
Search is case-insensitive.

If LITERAL-NIL is set, return the string value \"nil\" as
a string, do not interpret it as the list atom nil.  This is used
for inheritance when a \"nil\" value can supersede a non-nil
value higher up the hierarchy."
  (cond
   ((member-ignore-case property (cons "CATEGORY" org-special-properties))
    ;; We need a special property.  Use `org-entry-properties' to
    ;; retrieve it, but specify the wanted property.
    (cdr (assoc-string property (org-entry-properties epom property))))
   ((and inherit
	 (or (not (eq inherit 'selective)) (org-property-inherit-p property)))
    (org-entry-get-with-inheritance property literal-nil epom))
   (t
    (let* ((local (org--property-local-values property literal-nil epom))
	   (value (and local (mapconcat #'identity
                                        (delq nil local)
                                        (org--property-get-separator property)))))
      (if literal-nil value (org-not-nil value))))))

(defun org-property-or-variable-value (var &optional inherit)
  "Check if there is a property fixing the value of VAR.
If yes, return this value.  If not, return the current value of the variable."
  (let ((prop (org-entry-get nil (symbol-name var) inherit)))
    (if (and prop (stringp prop) (string-match "\\S-" prop))
	(read prop)
      (symbol-value var))))

(defun org-entry-delete (epom property)
  "Delete PROPERTY from entry at element, point, or marker EPOM.
Accumulated properties, i.e. PROPERTY+, are also removed.  Return
non-nil when a property was removed."
  (org-with-point-at epom
    (pcase (org-get-property-block)
      (`(,begin . ,origin)
       (let* ((end (copy-marker origin))
	      (re (org-re-property
		   (concat (regexp-quote property) "\\+?") t t)))
	 (goto-char begin)
	 (while (re-search-forward re end t)
	   (delete-region (match-beginning 0) (line-beginning-position 2)))
	 ;; If drawer is empty, remove it altogether.
	 (when (= begin end)
	   (delete-region (line-beginning-position 0)
			  (line-beginning-position 2)))
	 ;; Return non-nil if some property was removed.
	 (prog1 (/= end origin) (set-marker end nil))))
      (_ nil))))

;; Multi-values properties are properties that contain multiple values
;; These values are assumed to be single words, separated by whitespace.
(defun org-entry-add-to-multivalued-property (epom property value)
  "Add VALUE to the words in the PROPERTY in entry at EPOM.
EPOM is an element, marker, or buffer position."
  (let* ((old (org-entry-get epom property))
	 (values (and old (split-string old))))
    (setq value (org-entry-protect-space value))
    (unless (member value values)
      (setq values (append values (list value)))
      (org-entry-put epom property (mapconcat #'identity values " ")))))

(defun org-entry-remove-from-multivalued-property (epom property value)
  "Remove VALUE from words in the PROPERTY in entry at EPOM.
EPOM is an element, marker, or buffer position."
  (let* ((old (org-entry-get epom property))
	 (values (and old (split-string old))))
    (setq value (org-entry-protect-space value))
    (when (member value values)
      (setq values (delete value values))
      (org-entry-put epom property (mapconcat #'identity values " ")))))

(defun org-entry-member-in-multivalued-property (epom property value)
  "Is VALUE one of the words in the PROPERTY in EPOM?
EPOM is an element, marker, or buffer position."
  (let* ((old (org-entry-get epom property))
	 (values (and old (split-string old))))
    (setq value (org-entry-protect-space value))
    (member value values)))

(defun org-entry-get-multivalued-property (pom property)
  "Return a list of values in a multivalued property."
  (let* ((value (org-entry-get pom property))
	 (values (and value (split-string value))))
    (mapcar #'org-entry-restore-space values)))

(defun org-entry-put-multivalued-property (epom property &rest values)
  "Set multivalued PROPERTY at EPOM to VALUES.
VALUES should be a list of strings.  Spaces will be protected.
EPOM is an element, marker, or buffer position."
  (org-entry-put epom property (mapconcat #'org-entry-protect-space values " "))
  (let* ((value (org-entry-get epom property))
	 (values (and value (split-string value))))
    (mapcar #'org-entry-restore-space values)))

(defun org-entry-protect-space (s)
  "Protect spaces and newline in string S."
  (while (string-match " " s)
    (setq s (replace-match "%20" t t s)))
  (while (string-match "\n" s)
    (setq s (replace-match "%0A" t t s)))
  s)

(defun org-entry-restore-space (s)
  "Restore spaces and newline in string S."
  (while (string-match "%20" s)
    (setq s (replace-match " " t t s)))
  (while (string-match "%0A" s)
    (setq s (replace-match "\n" t t s)))
  s)

(defvar org-entry-property-inherited-from (make-marker)
  "Marker pointing to the entry from where a property was inherited.
Each call to `org-entry-get-with-inheritance' will set this marker to the
location of the entry where the inheritance search matched.  If there was
no match, the marker will point nowhere.
Note that also `org-entry-get' calls this function, if the INHERIT flag
is set.")

(defun org-entry-get-with-inheritance (property &optional literal-nil epom)
  "Get PROPERTY of entry or content at EPOM, search higher levels if needed.
EPOM can be a point, marker, or syntax node.
The search will stop at the first ancestor which has the property defined.
If the value found is \"nil\", return nil to show that the property
should be considered as undefined (this is the meaning of nil here).
However, if LITERAL-NIL is set, return the string value \"nil\" instead."
  (move-marker org-entry-property-inherited-from nil)
  (let (values found-inherited?)
    (org-element-lineage-map
        (org-element-at-point epom)
        (lambda (el)
          (pcase-let ((`(,val . ,val+)
                       ;; Force LITERAL-NIL t.
                       (org--property-local-values property t el)))
            (if (not val)
                ;; PROPERTY+
                (prog1 nil ; keep looking for PROPERTY
                  (when val+ (setq values (nconc (delq nil val+) values))))
              (setq values (cons val (nconc (delq nil val+) values)))
              (move-marker
               org-entry-property-inherited-from
               (org-element-begin el)
               (org-element-property :buffer el))
              ;; Found inherited direct PROPERTY.
              (setq found-inherited? t))))
      '(inlinetask headline org-data)
      'with-self 'first-match)
    ;; Consider global properties, if we found no PROPERTY (or maybe
    ;; only PROPERTY+).
    (unless found-inherited?
      (when-let ((global (org--property-global-or-keyword-value
                          property t)))
        (setq values (cons global values))))
    (when values
      (setq values (mapconcat
                    #'identity values
                    (org--property-get-separator property))))
    (if literal-nil values (org-not-nil values))))

(defvar org-property-changed-functions nil
  "Hook called when the value of a property has changed.
Each hook function should accept two arguments, the name of the property
and the new value.")

(defun org-entry-put (epom property value)
  "Set PROPERTY to VALUE for entry at EPOM.

EPOM is an element, marker, or buffer position.

If the value is nil, it is converted to the empty string.  If it
is not a string, an error is raised.  Also raise an error on
invalid property names.

PROPERTY can be any regular property (see
`org-special-properties').  It can also be \"TODO\",
\"PRIORITY\", \"SCHEDULED\" and \"DEADLINE\".

For the last two properties, VALUE may have any of the special
values \"earlier\" and \"later\".  The function then increases or
decreases scheduled or deadline date by one day."
  (cond ((null value) (setq value ""))
	((not (stringp value)) (error "Properties values should be strings"))
	((not (org--valid-property-p property))
	 (user-error "Invalid property name: \"%s\"" property)))
  (org-no-read-only
   (org-with-point-at epom
     (if (or (not (featurep 'org-inlinetask)) (org-inlinetask-in-task-p))
	 (org-back-to-heading-or-point-min t)
       (org-with-limited-levels (org-back-to-heading-or-point-min t)))
     (let ((beg (point)))
       (cond
        ((equal property "TODO")
	 (cond ((not (org-string-nw-p value)) (setq value 'none))
	       ((not (member value org-todo-keywords-1))
	        (user-error "\"%s\" is not a valid TODO state" value)))
	 (org-todo value)
	 (org-align-tags))
        ((equal property "PRIORITY")
	 (org-priority (if (org-string-nw-p value) (string-to-char value) ?\s))
	 (org-align-tags))
        ((equal property "SCHEDULED")
	 (forward-line)
	 (if (and (looking-at-p org-planning-line-re)
		  (re-search-forward
		   org-scheduled-time-regexp (line-end-position) t))
	     (cond ((string= value "earlier") (org-timestamp-change -1 'day))
		   ((string= value "later") (org-timestamp-change 1 'day))
		   ((string= value "") (org-schedule '(4)))
		   (t (org-schedule nil value)))
	   (if (member value '("earlier" "later" ""))
	       (call-interactively #'org-schedule)
	     (org-schedule nil value))))
        ((equal property "DEADLINE")
	 (forward-line)
	 (if (and (looking-at-p org-planning-line-re)
		  (re-search-forward
		   org-deadline-time-regexp (line-end-position) t))
	     (cond ((string= value "earlier") (org-timestamp-change -1 'day))
		   ((string= value "later") (org-timestamp-change 1 'day))
		   ((string= value "") (org-deadline '(4)))
		   (t (org-deadline nil value)))
	   (if (member value '("earlier" "later" ""))
	       (call-interactively #'org-deadline)
	     (org-deadline nil value))))
        ((member property org-special-properties)
	 (error "The %s property cannot be set with `org-entry-put'" property))
        (t
         (org-fold-core-ignore-modifications
	   (let* ((range (org-get-property-block beg 'force))
	          (end (cdr range))
	          (case-fold-search t))
	     (goto-char (car range))
	     (if (re-search-forward (org-re-property property nil t) end t)
	         (progn (delete-region (match-beginning 0) (match-end 0))
		        (goto-char (match-beginning 0)))
	       (goto-char end)
	       (insert-and-inherit "\n")
	       (backward-char))
	     (insert-and-inherit ":" property ":")
	     (when value (insert-and-inherit " " value))
	     (org-indent-line))))))
     (run-hook-with-args 'org-property-changed-functions property value))))

(defun org-buffer-property-keys (&optional specials defaults columns)
  "Get all property keys in the current buffer.

When SPECIALS is non-nil, also list the special properties that
reflect things like tags and TODO state.

When DEFAULTS is non-nil, also include properties that has
special meaning internally: ARCHIVE, CATEGORY, SUMMARY,
DESCRIPTION, LOCATION, and LOGGING and others.

When COLUMNS in non-nil, also include property names given in
COLUMN formats in the current buffer."
  (let ((case-fold-search t)
	(props (append
		(and specials org-special-properties)
		(and defaults (cons org-effort-property org-default-properties))
		;; Get property names from #+PROPERTY keywords as well
		(mapcar (lambda (s)
			  (nth 0 (split-string s)))
			(cdar (org-collect-keywords '("PROPERTY")))))))
    (org-with-wide-buffer
     (goto-char (point-min))
     (while (re-search-forward org-property-start-re nil t)
       (catch :skip
	 (let ((range (org-get-property-block)))
	   (unless range (throw :skip nil))
	   (goto-char (car range))
	   (let ((begin (car range))
		 (end (cdr range)))
	     ;; Make sure that found property block is not located
	     ;; before current point, as it would generate an infloop.
	     ;; It can happen, for example, in the following
	     ;; situation:
	     ;;
	     ;; * Headline
	     ;;   :PROPERTIES:
	     ;;   ...
	     ;;   :END:
	     ;; *************** Inlinetask
	     ;; #+BEGIN_EXAMPLE
	     ;; :PROPERTIES:
	     ;; #+END_EXAMPLE
	     ;;
	     (if (< begin (point)) (throw :skip nil) (goto-char begin))
	     (while (< (point) end)
	       (let ((p (progn (looking-at org-property-re)
			       (match-string-no-properties 2))))
		 ;; Only add true property name, not extension symbol.
		 (push (if (not (string-match-p "\\+\\'" p)) p
			 (substring p 0 -1))
		       props))
	       (forward-line))))
	 (outline-next-heading)))
     (when columns
       (goto-char (point-min))
       (while (re-search-forward "^[ \t]*\\(?:#\\+\\|:\\)COLUMNS:" nil t)
	 (let ((element (org-element-at-point)))
	   (when (org-element-type-p element '(keyword node-property))
	     (let ((value (org-element-property :value element))
		   (start 0))
	       (while (string-match "%[0-9]*\\([[:alnum:]_-]+\\)\\(([^)]+)\\)?\
\\(?:{[^}]+}\\)?"
				    value start)
		 (setq start (match-end 0))
		 (let ((p (match-string-no-properties 1 value)))
		   (unless (member-ignore-case p org-special-properties)
		     (push p props))))))))))
    (sort (delete-dups
	   (append props
		   ;; for each xxx_ALL property, make sure the bare
		   ;; xxx property is also included
		   (delq nil (mapcar (lambda (p)
				     (and (string-match-p "._ALL\\'" p)
					  (substring p 0 -4)))
				   props))))
	  (lambda (a b) (string< (upcase a) (upcase b))))))

(defun org-property-values (key)
  "List all non-nil values of property KEY in current buffer."
  (org-with-wide-buffer
   (goto-char (point-min))
   (let ((case-fold-search t)
	 (re (org-re-property key))
	 values)
     (while (re-search-forward re nil t)
       (push (org-entry-get (point) key) values))
     (delete-dups values))))

(defun org-insert-property-drawer ()
  "Insert a property drawer into the current entry.
Do nothing if the drawer already exists.  The newly created
drawer is immediately hidden."
  (org-with-wide-buffer
   ;; Set point to the position where the drawer should be inserted.
   (if (or (not (featurep 'org-inlinetask)) (org-inlinetask-in-task-p))
       (org-back-to-heading-or-point-min t)
     (org-with-limited-levels (org-back-to-heading-or-point-min t)))
   (if (org-before-first-heading-p)
       (while (and (org-at-comment-p) (bolp)) (forward-line))
     (forward-line)
     (when (looking-at-p org-planning-line-re) (forward-line)))
   (unless (looking-at-p org-property-drawer-re)
     ;; Make sure we start editing a line from current entry, not from
     ;; next one.  It prevents extending text properties or overlays
     ;; belonging to the latter.
     (when (and (bolp) (> (point) (point-min))) (backward-char))
     (let ((begin (if (bobp) (point) (1+ (point))))
	   (inhibit-read-only t))
       (unless (bobp) (insert "\n"))
       (insert ":PROPERTIES:\n:END:")
       (org-fold-region (line-end-position 0) (point) t 'drawer)
       (when (or (eobp) (= begin (point-min))) (insert "\n"))
       (org-indent-region begin (point))))))

(defun org-insert-drawer (&optional arg drawer)
  "Insert a drawer at point.

When optional argument ARG is non-nil, insert a property drawer.

Optional argument DRAWER, when non-nil, is a string representing
drawer's name.  Otherwise, the user is prompted for a name.

If a region is active, insert the drawer around that region
instead.

Point is left between drawer's boundaries."
  (interactive "P")
  (let* ((drawer (if arg "PROPERTIES"
		   (or drawer (read-from-minibuffer "Drawer: ")))))
    (cond
     ;; With C-u, fall back on `org-insert-property-drawer'
     (arg
      (org-insert-property-drawer)
      (org-back-to-heading-or-point-min t)
      ;; Move inside.
      (re-search-forward org-property-end-re)
      (forward-line 0)
      (unless (org-element-contents-begin (org-element-at-point))
        ;; Empty drawer.
        (insert "\n")
        (forward-char -1))
      (org-reveal))
     ;; Check validity of suggested drawer's name.
     ((not (string-match-p org-drawer-regexp (format ":%s:" drawer)))
      (user-error "Invalid drawer name"))
     ;; With an active region, insert a drawer at point.
     ((not (org-region-active-p))
      (progn
	(unless (bolp) (insert "\n"))
	(insert (format ":%s:\n\n:END:\n" drawer))
	(forward-line -2)))
     ;; Otherwise, insert the drawer at point
     (t
      (let ((rbeg (region-beginning))
	    (rend (copy-marker (region-end))))
	(unwind-protect
	    (progn
	      (goto-char rbeg)
	      (forward-line 0)
	      (when (save-excursion
		      (re-search-forward org-outline-regexp-bol rend t))
		(user-error "Drawers cannot contain headlines"))
	      ;; Position point at the beginning of the first
	      ;; non-blank line in region.  Insert drawer's opening
	      ;; there, then indent it.
	      (org-skip-whitespace)
	      (forward-line 0)
	      (insert ":" drawer ":\n")
	      (forward-line -1)
	      (indent-for-tab-command)
	      ;; Move point to the beginning of the first blank line
	      ;; after the last non-blank line in region.  Insert
	      ;; drawer's closing, then indent it.
	      (goto-char rend)
	      (skip-chars-backward " \r\t\n")
	      (insert "\n:END:")
	      (deactivate-mark t)
	      (indent-for-tab-command)
	      (unless (eolp) (insert "\n"))
              ;; Leave point inside drawer boundaries.
              (search-backward ":END:")
              (forward-char -1))
	  ;; Clear marker, whatever the outcome of insertion is.
	  (set-marker rend nil)))))))

(defvar org-property-set-functions-alist nil
  "Property set function alist.
Each entry should have the following format:

 (PROPERTY . READ-FUNCTION)

The read function will be called with the same argument as
`org-completing-read'.")

(defun org-set-property-function (property)
  "Get the function that should be used to set PROPERTY.
This is computed according to `org-property-set-functions-alist'."
  (or (cdr (assoc property org-property-set-functions-alist))
      'org-completing-read))

(defun org-read-property-value (property &optional epom default)
  "Read value for PROPERTY, as a string.
When optional argument EPOM is non-nil, completion uses additional
information, i.e., allowed or existing values at element, point, or
marker EPOM.
Optional argument DEFAULT provides a default value for PROPERTY."
  (let* ((completion-ignore-case t)
	 (allowed
	  (or (org-property-get-allowed-values nil property 'table)
	      (and epom (org-property-get-allowed-values epom property 'table))))
	 (current (org-entry-get nil property))
	 (prompt (format "%s value%s: "
			 property
			 (if (org-string-nw-p current)
			     (format " [%s]" current)
			   "")))
	 (set-function (org-set-property-function property))
         (default (cond
                   ((not allowed) default)
                   ((member default allowed) default)
                   (t nil))))
    (org-trim
     (if allowed
	 (funcall set-function
		  prompt allowed nil
		  (not (get-text-property 0 'org-unrestricted (caar allowed)))
		  default nil default)
       (let ((all (mapcar #'list
			  (append (org-property-values property)
				  (and epom
				       (org-with-point-at epom
					 (org-property-values property)))))))
	 (funcall set-function prompt all nil nil default nil current))))))

(defvar org-last-set-property nil)
(defvar org-last-set-property-value nil)
(defun org-read-property-name ()
  "Read a property name."
  (let ((completion-ignore-case t)
	(default-prop (or (and (org-at-property-p)
			       (match-string-no-properties 2))
			  org-last-set-property)))
    (org-completing-read
     (concat "Property"
	     (if default-prop (concat " [" default-prop "]") "")
	     ": ")
     (mapcar #'list (org-buffer-property-keys nil t t))
     nil nil nil nil default-prop)))

(defun org-set-property-and-value (use-last)
  "Allow to set [PROPERTY]: [value] direction from prompt.
When use-default, don't even ask, just use the last
\"[PROPERTY]: [value]\" string from the history."
  (interactive "P")
  (let* ((completion-ignore-case t)
	 (pv (or (and use-last org-last-set-property-value)
		 (org-completing-read
		  "Enter a \"[Property]: [value]\" pair: "
		  nil nil nil nil nil
		  org-last-set-property-value)))
	 prop val)
    (when (string-match "^[ \t]*\\([^:]+\\):[ \t]*\\(.*\\)[ \t]*$" pv)
      (setq prop (match-string 1 pv)
	    val (match-string 2 pv))
      (org-set-property prop val))))

(defun org-set-property (property value)
  "In the current entry, set PROPERTY to VALUE.

When called interactively, this will prompt for a property name, offering
completion on existing and default properties.  And then it will prompt
for a value, offering completion either on allowed values (via an inherited
xxx_ALL property) or on existing values in other instances of this property
in the current file.

Throw an error when trying to set a property with an invalid name."
  (interactive (list nil nil))
  (let ((property (or property (org-read-property-name))))
    ;; `org-entry-put' also makes the following check, but this one
    ;; avoids polluting `org-last-set-property' and
    ;; `org-last-set-property-value' needlessly.
    (unless (org--valid-property-p property)
      (user-error "Invalid property name: \"%s\"" property))
    (let ((value (or value (org-read-property-value property)))
	  (fn (cdr (assoc-string property org-properties-postprocess-alist t))))
      (setq org-last-set-property property)
      (setq org-last-set-property-value (concat property ": " value))
      ;; Possibly postprocess the inserted value:
      (when fn (setq value (funcall fn value)))
      (unless (equal (org-entry-get nil property) value)
	(org-entry-put nil property value)))))

(defun org-find-property (property &optional value)
  "Find first entry in buffer that sets PROPERTY.

When optional argument VALUE is non-nil, only consider an entry
if it contains PROPERTY set to this value.  If PROPERTY should be
explicitly set to nil, use string \"nil\" for VALUE.

Return position where the entry begins, or nil if there is no
such entry.  If narrowing is in effect, only search the visible
part of the buffer."
  (save-excursion
    (goto-char (point-min))
    (let ((case-fold-search t)
	  (re (org-re-property property nil (not value) value)))
      (catch 'exit
	(while (re-search-forward re nil t)
	  (when (if value (org-at-property-p)
		  (org-entry-get (point) property nil t))
	    (throw 'exit (progn (org-back-to-heading-or-point-min t)
				(point)))))))))

(defun org-delete-property (property)
  "In the current entry, delete PROPERTY."
  (interactive
   (let* ((completion-ignore-case t)
	  (cat (org-entry-get (point) "CATEGORY"))
	  (props0 (org-entry-properties nil 'standard))
	  (props (if cat props0
		   (delete `("CATEGORY" . ,(org-get-category)) props0)))
	  (prop (if (< 1 (length props))
		    (completing-read "Property: " props nil t)
		  (caar props))))
     (list prop)))
  (if (not property)
      (message "No property to delete in this entry")
    (org-entry-delete nil property)
    (message "Property \"%s\" deleted" property)))

(defun org-delete-property-globally (property)
  "Remove PROPERTY globally, from all entries.
This function ignores narrowing, if any."
  (interactive
   (let* ((completion-ignore-case t)
	  (prop (completing-read
		 "Globally remove property: "
		 (mapcar #'list (org-buffer-property-keys)))))
     (list prop)))
  (org-with-wide-buffer
   (goto-char (point-min))
   (let ((count 0)
	 (re (org-re-property (concat (regexp-quote property) "\\+?") t t)))
     (while (re-search-forward re nil t)
       (when (org-entry-delete (point) property) (cl-incf count)))
     (message "Property \"%s\" removed from %d entries" property count))))

(defvar org-columns-current-fmt-compiled) ; defined in org-colview.el

(defun org-compute-property-at-point ()
  "Compute the property at point.
This looks for an enclosing column format, extracts the operator and
then applies it to the property in the column format's scope."
  (interactive)
  (unless (org-at-property-p)
    (user-error "Not at a property"))
  (let ((prop (match-string-no-properties 2)))
    (org-columns-get-format-and-top-level)
    (unless (nth 3 (assoc-string prop org-columns-current-fmt-compiled t))
      (user-error "No operator defined for property %s" prop))
    (org-columns-compute prop)))

(defvar org-property-allowed-value-functions nil
  "Hook for functions supplying allowed values for a specific property.
The functions must take a single argument, the name of the property, and
return a flat list of allowed values.  If \":ETC\" is one of
the values, this means that these values are intended as defaults for
completion, but that other values should be allowed too.
The functions must return nil if they are not responsible for this
property.")

(defun org-property-get-allowed-values (epom property &optional table)
  "Get allowed values at EPOM for the property PROPERTY.
EPOM can be an element, marker, or buffer position.
When TABLE is non-nil, return an alist that can directly be used for
completion."
  (let (vals)
    (cond
     ((equal property "TODO")
      (setq vals (org-with-point-at epom
		   (append org-todo-keywords-1 '("")))))
     ((equal property "PRIORITY")
      (let ((n org-priority-lowest))
	(while (>= n org-priority-highest)
	  (push (char-to-string n) vals)
	  (setq n (1- n)))))
     ((equal property "CATEGORY"))
     ((member property org-special-properties))
     ((setq vals (run-hook-with-args-until-success
		  'org-property-allowed-value-functions property)))
     (t
      (setq vals (org-entry-get epom (concat property "_ALL") 'inherit))
      (when (and vals (string-match "\\S-" vals))
	(setq vals (car (read-from-string (concat "(" vals ")"))))
	(setq vals (mapcar (lambda (x)
			     (cond ((stringp x) x)
				   ((numberp x) (number-to-string x))
				   ((symbolp x) (symbol-name x))
				   (t "???")))
			   vals)))))
    (when (member ":ETC" vals)
      (setq vals (remove ":ETC" vals))
      (org-add-props (car vals) '(org-unrestricted t)))
    (if table (mapcar 'list vals) vals)))

(defun org-property-previous-allowed-value (&optional _previous)
  "Switch to the next allowed value for this property."
  (interactive)
  (org-property-next-allowed-value t))

(defun org-property-next-allowed-value (&optional previous)
  "Switch to the next allowed value for this property."
  (interactive)
  (unless (org-at-property-p)
    (user-error "Not at a property"))
  (let* ((prop (car (save-match-data (org-split-string (match-string 1) ":"))))
	 (key (match-string 2))
	 (value (match-string 3))
	 (allowed (or (org-property-get-allowed-values (point) key)
		      (and (member value  '("[ ]" "[-]" "[X]"))
			   '("[ ]" "[X]"))))
	 (heading (save-match-data (nth 4 (org-heading-components))))
	 nval)
    (unless allowed
      (user-error "Allowed values for this property have not been defined"))
    (when previous (setq allowed (reverse allowed)))
    (when (member value allowed)
      (setq nval (car (cdr (member value allowed)))))
    (setq nval (or nval (car allowed)))
    (when (equal nval value)
      (user-error "Only one allowed value for this property"))
    (org-at-property-p)
    (replace-match (concat " :" key ": " nval) t t)
    (org-indent-line)
    (forward-line 0)
    (skip-chars-forward " \t")
    (when (equal prop org-effort-property)
      (when (string= org-clock-current-task heading)
	(setq org-clock-effort nval)
	(org-clock-update-mode-line)))
    (run-hook-with-args 'org-property-changed-functions key nval)))

(defun org-find-olp (path &optional this-buffer)
  "Return a marker pointing to the entry at outline path OLP.
If anything goes wrong, throw an error, and if you need to do
something based on this error, you can catch it with
`condition-case'.

If THIS-BUFFER is set, the outline path does not contain a file,
only headings."
  (let* ((file (if this-buffer buffer-file-name (pop path)))
	 (buffer (if this-buffer (current-buffer) (find-file-noselect file)))
	 (level 1)
	 (lmin 1)
	 (lmax 1)
	 end found flevel)
    (unless buffer (error "File not found :%s" file))
    (with-current-buffer buffer
      (unless (derived-mode-p 'org-mode)
	(error "Buffer %s needs to be in Org mode" buffer))
      (org-with-wide-buffer
       (goto-char (point-min))
       (dolist (heading path)
	 (let ((re (format org-complex-heading-regexp-format
			   (regexp-quote heading)))
	       (cnt 0))
	   (while (re-search-forward re end t)
	     (setq level (- (match-end 1) (match-beginning 1)))
	     (when (and (>= level lmin) (<= level lmax))
	       (setq found (match-beginning 0) flevel level cnt (1+ cnt))))
	   (when (= cnt 0)
	     (error "Heading not found on level %d: %s" lmax heading))
	   (when (> cnt 1)
	     (error "Heading not unique on level %d: %s" lmax heading))
	   (goto-char found)
	   (setq lmin (1+ flevel) lmax (+ lmin (if org-odd-levels-only 1 0)))
	   (setq end (save-excursion (org-end-of-subtree t t)))))
       (when (org-at-heading-p)
	 (point-marker))))))

(defun org-find-exact-headline-in-buffer (heading &optional buffer pos-only)
  "Find node HEADING in BUFFER.
Return a marker to the heading if it was found, or nil if not.
If POS-ONLY is set, return just the position instead of a marker.

The heading text must match exact, but it may have a TODO keyword,
a priority cookie and tags in the standard locations."
  (with-current-buffer (or buffer (current-buffer))
    (org-with-wide-buffer
     (goto-char (point-min))
     (let (case-fold-search)
       (when (re-search-forward
	      (format org-complex-heading-regexp-format
		      (regexp-quote heading)) nil t)
	 (if pos-only
	     (match-beginning 0)
	   (move-marker (make-marker) (match-beginning 0))))))))

(defun org-find-exact-heading-in-directory (heading &optional dir)
  "Find Org node headline HEADING in all \".org\" files in directory DIR.
When the target headline is found, return a marker to this location."
  (let ((files (directory-files (or dir default-directory)
				t "\\`[^.#].*\\.org\\'"))
	visiting m buffer)
    (catch 'found
      (dolist (file files)
        (message "trying %s" file)
        (setq visiting (org-find-base-buffer-visiting file))
        (setq buffer (or visiting (find-file-noselect file)))
        (setq m (org-find-exact-headline-in-buffer
                 heading buffer))
        (when (and (not m) (not visiting)) (kill-buffer buffer))
        (and m (throw 'found m))))))

(defun org-find-entry-with-id (ident)
  "Locate the entry that contains the ID property with exact value IDENT.
IDENT can be a string, a symbol or a number, this function will search for
the string representation of it.
Return the position where this entry starts, or nil if there is no such entry."
  (interactive "sID: ")
  (let ((id (cond
	     ((stringp ident) ident)
	     ((symbolp ident) (symbol-name ident))
	     ((numberp ident) (number-to-string ident))
	     (t (error "IDENT %s must be a string, symbol or number" ident)))))
    (org-with-wide-buffer (org-find-property "ID" id))))

;;;; Timestamps

(defvar org-last-changed-timestamp nil)
(defvar org-last-inserted-timestamp nil
  "The last time stamp inserted with `org-insert-timestamp'.")

(defalias 'org-time-stamp #'org-timestamp)
(defun org-timestamp (arg &optional inactive)
  "Prompt for a date/time and insert a time stamp.

If the user specifies a time like HH:MM or if this command is
called with at least one prefix argument, the time stamp contains
the date and the time.  Otherwise, only the date is included.

All parts of a date not specified by the user are filled in from
the timestamp at point, if any, or the current date/time
otherwise.

If there is already a timestamp at the cursor, it is replaced.

With two universal prefix arguments, insert an active timestamp
with the current time without prompting the user.

When called from Lisp, the timestamp is inactive if INACTIVE is
non-nil."
  (interactive "P")
  (let* ((ts (cond
	      ((org-at-date-range-p t)
	       (match-string (if (< (point) (- (match-beginning 2) 2)) 1 2)))
	      ((org-at-timestamp-p 'lax) (match-string 0))))
	 ;; Default time is either the timestamp at point or today.
	 ;; When entering a range, only the range start is considered.
         (default-time (and ts (org-time-string-to-time ts)))
         (default-input (and ts (org-get-compact-tod ts)))
         (repeater (and ts
			(string-match "\\([.+-]+[0-9]+[hdwmy] ?\\)+" ts)
			(match-string 0 ts)))
	 org-time-was-given
	 org-end-time-was-given
	 (time
	  (if (equal arg '(16)) (current-time)
	    ;; Preserve `this-command' and `last-command'.
	    (let ((this-command this-command)
		  (last-command last-command))
	      (org-read-date
	       arg 'totime nil nil default-time default-input
	       inactive)))))
    (cond
     ((and ts
           (memq last-command '( org-time-stamp org-time-stamp-inactive
                                 org-timestamp org-timestamp-inactive))
           (memq this-command '( org-time-stamp org-time-stamp-inactive
                                 org-timestamp org-timestamp-inactive)))
      (insert "--")
      (org-insert-timestamp time (or org-time-was-given arg) inactive))
     (ts
      ;; Make sure we're on a timestamp.  When in the middle of a date
      ;; range, move arbitrarily to range end.
      (unless (org-at-timestamp-p 'lax)
	(skip-chars-forward "-")
	(org-at-timestamp-p 'lax))
      (replace-match "")
      (setq org-last-changed-timestamp
	    (org-insert-timestamp
	     time (or org-time-was-given arg)
	     inactive nil nil (list org-end-time-was-given)))
      (when repeater
	(backward-char)
	(insert " " repeater)
	(setq org-last-changed-timestamp
	      (concat (substring org-last-inserted-timestamp 0 -1)
		      " " repeater ">")))
      (message "Timestamp updated"))
     ((equal arg '(16)) (org-insert-timestamp time t inactive))
     (t (org-insert-timestamp
	 time (or org-time-was-given arg) inactive nil nil
	 (list org-end-time-was-given))))))

;; FIXME: can we use this for something else, like computing time differences?
(defun org-get-compact-tod (s)
  (when (string-match "\\(\\([012]?[0-9]\\):\\([0-5][0-9]\\)\\)\\(-\\(\\([012]?[0-9]\\):\\([0-5][0-9]\\)\\)\\)?" s)
    (let* ((t1 (match-string 1 s))
	   (h1 (string-to-number (match-string 2 s)))
	   (m1 (string-to-number (match-string 3 s)))
	   (t2 (and (match-end 4) (match-string 5 s)))
	   (h2 (and t2 (string-to-number (match-string 6 s))))
	   (m2 (and t2 (string-to-number (match-string 7 s))))
	   dh dm)
      (if (not t2)
	  t1
	(setq dh (- h2 h1) dm (- m2 m1))
	(when (< dm 0) (setq dm (+ dm 60) dh (1- dh)))
	(concat t1 "+" (number-to-string dh)
		(and (/= 0 dm) (format ":%02d" dm)))))))

(defalias 'org-time-stamp-inactive #'org-timestamp-inactive)
(defun org-timestamp-inactive (&optional arg)
  "Insert an inactive time stamp.

An inactive time stamp is enclosed in square brackets instead of
angle brackets.  It is inactive in the sense that it does not
trigger agenda entries.  So these are more for recording a
certain time/date.

If the user specifies a time like HH:MM or if this command is called with
at least one prefix argument, the time stamp contains the date and the time.
Otherwise, only the date is included.

When called with two universal prefix arguments, insert an inactive time stamp
with the current time without prompting the user."
  (interactive "P")
  (org-timestamp arg 'inactive))

(defvar org-date-ovl (make-overlay 1 1))
(overlay-put org-date-ovl 'face 'org-date-selected)
(delete-overlay org-date-ovl)

(defvar org-ans1) ; dynamically scoped parameter
(defvar org-ans2) ; dynamically scoped parameter

(defvar org-plain-time-of-day-regexp) ; defined below

(defvar org-overriding-default-time nil) ; dynamically scoped
(defvar org-read-date-overlay nil)
(defvar org-read-date-history nil)
(defvar org-read-date-final-answer nil)
(defvar org-read-date-analyze-futurep nil)
(defvar org-read-date-analyze-forced-year nil)
(defvar org-read-date-inactive)
(defvar org-def)
(defvar org-defdecode)
(defvar org-with-time)

(defvar calendar-setup)			; Dynamically scoped.
(defun org-read-date (&optional with-time to-time from-string prompt
				default-time default-input inactive)
  "Read a date, possibly a time, and make things smooth for the user.
The prompt will suggest to enter an ISO date, but you can also enter anything
which will at least partially be understood by `parse-time-string'.
Unrecognized parts of the date will default to the current day, month, year,
hour and minute.  If this command is called to replace a timestamp at point,
or to enter the second timestamp of a range, the default time is taken
from the existing stamp.  Furthermore, the command prefers the future,
so if you are giving a date where the year is not given, and the day-month
combination is already past in the current year, it will assume you
mean next year.  For details, see the manual.  A few examples:

  3-2-5         --> 2003-02-05
  feb 15        --> currentyear-02-15
  2/15          --> currentyear-02-15
  sep 12 9      --> 2009-09-12
  12:45         --> today 12:45
  22 sept 0:34  --> currentyear-09-22 0:34
  12            --> currentyear-currentmonth-12
  Fri           --> nearest Friday after today
  -Tue          --> last Tuesday
  etc.

Furthermore you can specify a relative date by giving, as the *first* thing
in the input:  a plus/minus sign, a number and a letter [hdwmy] to indicate
change in days weeks, months, years.
With a single plus or minus, the date is relative to today.  With a double
plus or minus, it is relative to the date in DEFAULT-TIME.  E.g.
  +4d           --> four days from today
  +4            --> same as above
  +2w           --> two weeks from today
  ++5           --> five days from default date

The function understands only English month and weekday abbreviations.

While prompting, a calendar is popped up - you can also select the
date with the mouse (button 1).  The calendar shows a period of three
months.  To scroll it to other months, use the keys `>' and `<'.
There are many other calendar navigation commands available, see
Info node `(org) The date/time prompt' for a full list.

If you don't like the calendar, turn it off with
       (setq org-read-date-popup-calendar nil)

With optional argument TO-TIME, the date will immediately be converted
to an internal time.
With an optional argument WITH-TIME, the prompt will suggest to
also insert a time.  Note that when WITH-TIME is not set, you can
still enter a time, and this function will inform the calling routine
about this change.  The calling routine may then choose to change the
format used to insert the time stamp into the buffer to include the time.
With optional argument FROM-STRING, read from this string instead from
the user.  PROMPT can overwrite the default prompt.  DEFAULT-TIME is
the time/date that is used for everything that is not specified by the
user."
  (require 'parse-time)
  (let* ((org-with-time with-time)
	 (org-timestamp-rounding-minutes
	  (if (equal org-with-time '(16))
	      '(0 0)
	    org-timestamp-rounding-minutes))
	 (ct (org-current-time))
	 (org-def (or org-overriding-default-time default-time ct))
	 (org-defdecode (decode-time org-def))
         (cur-frame (selected-frame))
	 (mouse-autoselect-window nil)	; Don't let the mouse jump
	 (calendar-setup
	  (and (eq calendar-setup 'calendar-only) 'calendar-only))
	 (calendar-move-hook nil)
	 (calendar-view-diary-initially-flag nil)
	 (calendar-view-holidays-initially-flag nil)
	 ans (org-ans0 "") org-ans1 org-ans2 final cal-frame)
    ;; Rationalize `org-def' and `org-defdecode', if required.
    ;; Only consider `org-extend-today-until' when explicit reference
    ;; time is not given.
    (when (and (not default-time)
               (not org-overriding-default-time)
               (< (nth 2 org-defdecode) org-extend-today-until))
      (setf (nth 2 org-defdecode) -1)
      (setf (nth 1 org-defdecode) 59)
      (setq org-def (org-encode-time org-defdecode))
      (setq org-defdecode (decode-time org-def)))
    (let* ((timestr (format-time-string
		     (if org-with-time "%Y-%m-%d %H:%M" "%Y-%m-%d")
		     org-def))
	   (prompt (concat (if prompt (concat prompt " ") "")
			   (format "Date+time [%s]: " timestr))))
      (cond
       (from-string (setq ans from-string))
       (org-read-date-popup-calendar
	(save-excursion
	  (save-window-excursion
	    (calendar)
	    (when (eq calendar-setup 'calendar-only)
	      (setq cal-frame
		    (window-frame (get-buffer-window calendar-buffer 'visible)))
	      (select-frame cal-frame))
	    (org-eval-in-calendar '(setq cursor-type nil) t)
	    (unwind-protect
		(progn
		  (calendar-forward-day (- (time-to-days org-def)
					   (calendar-absolute-from-gregorian
					    (calendar-current-date))))
		  (org-eval-in-calendar nil t)
		  (let* ((old-map (current-local-map))
			 (map (copy-keymap calendar-mode-map))
			 (minibuffer-local-map
			  (copy-keymap org-read-date-minibuffer-local-map)))
		    (org-defkey map (kbd "RET") 'org-calendar-select)
		    (org-defkey map [mouse-1] 'org-calendar-select-mouse)
		    (org-defkey map [mouse-2] 'org-calendar-select-mouse)
		    (unwind-protect
			(progn
			  (use-local-map map)
			  (setq org-read-date-inactive inactive)
			  (add-hook 'post-command-hook 'org-read-date-display)
			  (setq org-ans0
				(read-string prompt
					     default-input
					     'org-read-date-history
					     nil))
			  ;; org-ans0: from prompt
			  ;; org-ans1: from mouse click
			  ;; org-ans2: from calendar motion
			  (setq ans
				(concat org-ans0 " " (or org-ans1 org-ans2))))
		      (remove-hook 'post-command-hook 'org-read-date-display)
		      (use-local-map old-map)
		      (when org-read-date-overlay
			(delete-overlay org-read-date-overlay)
			(setq org-read-date-overlay nil)))))
	      (bury-buffer calendar-buffer)
	      (when cal-frame
		(delete-frame cal-frame)
		(select-frame-set-input-focus cur-frame))))))

       (t				; Naked prompt only
	(unwind-protect
	    (setq ans (read-string prompt default-input
				   'org-read-date-history timestr))
	  (when org-read-date-overlay
	    (delete-overlay org-read-date-overlay)
	    (setq org-read-date-overlay nil))))))

    (setq final (org-read-date-analyze ans org-def org-defdecode))

    (when org-read-date-analyze-forced-year
      (message "Year was forced into %s"
	       (if org-read-date-force-compatible-dates
		   "compatible range (1970-2037)"
		 "range representable on this machine"))
      (ding))

    (setq final (org-encode-time final))

    (setq org-read-date-final-answer ans)

    (if to-time
	final
      ;; This round-trip gets rid of 34th of August and stuff like that....
      (setq final (decode-time final))
      (if (and (boundp 'org-time-was-given) org-time-was-given)
	  (format "%04d-%02d-%02d %02d:%02d"
		  (nth 5 final) (nth 4 final) (nth 3 final)
		  (nth 2 final) (nth 1 final))
	(format "%04d-%02d-%02d" (nth 5 final) (nth 4 final) (nth 3 final))))))

(defun org-read-date-display ()
  "Display the current date prompt interpretation in the minibuffer."
  (when org-read-date-display-live
    (when org-read-date-overlay
      (delete-overlay org-read-date-overlay))
    (when (minibufferp (current-buffer))
      (save-excursion
	(end-of-line 1)
	(while (not (equal (buffer-substring
			  (max (point-min) (- (point) 4)) (point))
			 "    "))
	  (insert " ")))
      (let* ((ans (concat (buffer-substring (line-beginning-position)
                                            (point-max))
			  " " (or org-ans1 org-ans2)))
	     (org-end-time-was-given nil)
	     (f (org-read-date-analyze ans org-def org-defdecode))
	     (fmt (org-time-stamp-format
                   (or org-with-time
                       (and (boundp 'org-time-was-given) org-time-was-given))
                   org-read-date-inactive
                   org-display-custom-times))
	     (txt (format-time-string fmt (org-encode-time f)))
	     (txt (concat "=> " txt)))
	(when (and org-end-time-was-given
		   (string-match org-plain-time-of-day-regexp txt))
	  (setq txt (concat (substring txt 0 (match-end 0)) "-"
			    org-end-time-was-given
			    (substring txt (match-end 0)))))
	(when org-read-date-analyze-futurep
	  (setq txt (concat txt " (=>F)")))
	(setq org-read-date-overlay
              (make-overlay (1- (line-end-position)) (line-end-position)))
        ;; Avoid priority race with overlay used by calendar.el.
        ;; See bug#69271.
        (overlay-put org-read-date-overlay 'priority 1)
	(org-overlay-display org-read-date-overlay txt 'secondary-selection)))))

(defun org-read-date-analyze (ans def defdecode)
  "Analyze the combined answer of the date prompt."
  ;; FIXME: cleanup and comment
  (let ((org-def def)
	(org-defdecode defdecode)
	(nowdecode (decode-time))
	delta deltan deltaw deltadef year month day
	hour minute second wday pm h2 m2 tl wday1
	iso-year iso-weekday iso-week iso-date futurep kill-year)
    (setq org-read-date-analyze-futurep nil
	  org-read-date-analyze-forced-year nil)
    (when (string-match "\\`[ \t]*\\.[ \t]*\\'" ans)
      (setq ans "+0"))

    (when (setq delta (org-read-date-get-relative ans nil org-def))
      (setq ans (replace-match "" t t ans)
	    deltan (car delta)
	    deltaw (nth 1 delta)
	    deltadef (nth 2 delta)))

    ;; Check if there is an iso week date in there.  If yes, store the
    ;; info and postpone interpreting it until the rest of the parsing
    ;; is done.
    (when (string-match "\\<\\(?:\\([0-9]+\\)-\\)?[wW]\\([0-9]\\{1,2\\}\\)\\(?:-\\([0-6]\\)\\)?\\([ \t]\\|$\\)" ans)
      (setq iso-year (when (match-end 1)
		       (org-small-year-to-year
			(string-to-number (match-string 1 ans))))
	    iso-weekday (when (match-end 3)
			  (string-to-number (match-string 3 ans)))
	    iso-week (string-to-number (match-string 2 ans)))
      (setq ans (replace-match "" t t ans)))

    ;; Help matching ISO dates with single digit month or day, like 2006-8-11.
    (when (string-match
	   "^ *\\(\\([0-9]+\\)-\\)?\\([0-1]?[0-9]\\)-\\([0-3]?[0-9]\\)\\([^-0-9]\\|$\\)" ans)
      (setq year (if (match-end 2)
		     (string-to-number (match-string 2 ans))
		   (progn (setq kill-year t)
			  (string-to-number (format-time-string "%Y"))))
	    month (string-to-number (match-string 3 ans))
	    day (string-to-number (match-string 4 ans)))
      (setq year (org-small-year-to-year year))
      (setq ans (replace-match (format "%04d-%02d-%02d\\5" year month day)
			       t nil ans)))

    ;; Help matching dotted european dates
    (when (string-match
	   "^ *\\(3[01]\\|0?[1-9]\\|[12][0-9]\\)\\. ?\\(0?[1-9]\\|1[012]\\)\\.\\( ?[1-9][0-9]\\{3\\}\\)?" ans)
      (setq year (if (match-end 3) (string-to-number (match-string 3 ans))
		   (setq kill-year t)
		   (string-to-number (format-time-string "%Y")))
	    day (string-to-number (match-string 1 ans))
	    month (string-to-number (match-string 2 ans))
	    ans (replace-match (format "%04d-%02d-%02d" year month day)
			       t nil ans)))

    ;; Help matching american dates, like 5/30 or 5/30/7
    (when (string-match
	   "^ *\\(0?[1-9]\\|1[012]\\)/\\(0?[1-9]\\|[12][0-9]\\|3[01]\\)\\(/\\([0-9]+\\)\\)?\\([^/0-9]\\|$\\)" ans)
      (setq year (if (match-end 4)
		     (string-to-number (match-string 4 ans))
		   (progn (setq kill-year t)
			  (string-to-number (format-time-string "%Y"))))
	    month (string-to-number (match-string 1 ans))
	    day (string-to-number (match-string 2 ans)))
      (setq year (org-small-year-to-year year))
      (setq ans (replace-match (format "%04d-%02d-%02d\\5" year month day)
			       t nil ans)))
    ;; Help matching am/pm times, because `parse-time-string' does not do that.
    ;; If there is a time with am/pm, and *no* time without it, we convert
    ;; so that matching will be successful.
    (cl-loop for i from 1 to 2 do	; twice, for end time as well
	     (when (and (not (string-match "\\(\\`\\|[^+]\\)[012]?[0-9]:[0-9][0-9]\\([ \t\n]\\|$\\)" ans))
			(string-match "\\([012]?[0-9]\\)\\(:\\([0-5][0-9]\\)\\)?\\(am\\|AM\\|pm\\|PM\\)\\>" ans))
	       (setq hour (string-to-number (match-string 1 ans))
		     minute (if (match-end 3)
				(string-to-number (match-string 3 ans))
			      0)
		     pm (equal ?p
			       (string-to-char (downcase (match-string 4 ans)))))
	       (if (and (= hour 12) (not pm))
		   (setq hour 0)
		 (when (and pm (< hour 12)) (setq hour (+ 12 hour))))
	       (setq ans (replace-match (format "%02d:%02d" hour minute)
					t t ans))))

    ;; Help matching HHhMM times, similarly as for am/pm times.
    (cl-loop for i from 1 to 2 do	; twice, for end time as well
	     (when (and (not (string-match "\\(\\`\\|[^+]\\)[012]?[0-9]:[0-9][0-9]\\([ \t\n]\\|$\\)" ans))
			(string-match "\\(?:\\(?1:[012]?[0-9]\\)?h\\(?2:[0-5][0-9]\\)\\)\\|\\(?:\\(?1:[012]?[0-9]\\)h\\(?2:[0-5][0-9]\\)?\\)\\>" ans))
	       (setq hour (if (match-end 1)
			      (string-to-number (match-string 1 ans))
			    0)
		     minute (if (match-end 2)
				(string-to-number (match-string 2 ans))
			      0))
	       (setq ans (replace-match (format "%02d:%02d" hour minute)
					t t ans))))

    ;; Check if a time range is given as a duration
    (when (string-match "\\([012]?[0-9]\\):\\([0-6][0-9]\\)\\+\\([012]?[0-9]\\)\\(:\\([0-5][0-9]\\)\\)?" ans)
      (setq hour (string-to-number (match-string 1 ans))
	    h2 (+ hour (string-to-number (match-string 3 ans)))
	    minute (string-to-number (match-string 2 ans))
	    m2 (+ minute (if (match-end 5) (string-to-number
					    (match-string 5 ans))0)))
      (when (>= m2 60) (setq h2 (1+ h2) m2 (- m2 60)))
      (setq ans (replace-match (format "%02d:%02d-%02d:%02d" hour minute h2 m2)
			       t t ans)))

    ;; Check if there is a time range
    (when (boundp 'org-end-time-was-given)
      (setq org-time-was-given nil)
      (when (and (string-match org-plain-time-of-day-regexp ans)
		 (match-end 8))
	(setq org-end-time-was-given (match-string 8 ans))
	(setq ans (concat (substring ans 0 (match-beginning 7))
			  (substring ans (match-end 7))))))

    (setq tl (parse-time-string ans)
	  day (or (nth 3 tl) (nth 3 org-defdecode))
	  month
	  (cond ((nth 4 tl))
		((not org-read-date-prefer-future) (nth 4 org-defdecode))
		;; Day was specified.  Make sure DAY+MONTH
		;; combination happens in the future.
		((nth 3 tl)
		 (setq futurep t)
		 (if (< day (nth 3 nowdecode)) (1+ (nth 4 nowdecode))
		   (nth 4 nowdecode)))
		(t (nth 4 org-defdecode)))
	  year
	  (cond ((and (not kill-year) (nth 5 tl)))
		((not org-read-date-prefer-future) (nth 5 org-defdecode))
		;; Month was guessed in the future and is at least
		;; equal to NOWDECODE's.  Fix year accordingly.
		(futurep
		 (if (or (> month (nth 4 nowdecode))
			 (>= day (nth 3 nowdecode)))
		     (nth 5 nowdecode)
		   (1+ (nth 5 nowdecode))))
		;; Month was specified.  Make sure MONTH+YEAR
		;; combination happens in the future.
		((nth 4 tl)
		 (setq futurep t)
		 (cond ((> month (nth 4 nowdecode)) (nth 5 nowdecode))
		       ((< month (nth 4 nowdecode)) (1+ (nth 5 nowdecode)))
		       ((< day (nth 3 nowdecode)) (1+ (nth 5 nowdecode)))
		       (t (nth 5 nowdecode))))
		(t (nth 5 org-defdecode)))
	  hour (or (nth 2 tl) (nth 2 org-defdecode))
	  minute (or (nth 1 tl) (nth 1 org-defdecode))
	  second (or (nth 0 tl) 0)
	  wday (nth 6 tl))

    (when (and (eq org-read-date-prefer-future 'time)
	       (not (nth 3 tl)) (not (nth 4 tl)) (not (nth 5 tl))
	       (equal day (nth 3 nowdecode))
	       (equal month (nth 4 nowdecode))
	       (equal year (nth 5 nowdecode))
	       (nth 2 tl)
	       (or (< (nth 2 tl) (nth 2 nowdecode))
		   (and (= (nth 2 tl) (nth 2 nowdecode))
			(nth 1 tl)
			(< (nth 1 tl) (nth 1 nowdecode)))))
      (setq day (1+ day)
	    futurep t))

    ;; Special date definitions below
    (cond
     (iso-week
      ;; There was an iso week
      (require 'cal-iso)
      (setq futurep nil)
      (setq year (or iso-year year)
	    day (or iso-weekday wday 1)
	    wday nil ; to make sure that the trigger below does not match
	    iso-date (calendar-gregorian-from-absolute
		      (calendar-iso-to-absolute
		       (list iso-week day year))))
					; FIXME:  Should we also push ISO weeks into the future?
					;      (when (and org-read-date-prefer-future
					;		 (not iso-year)
					;		 (< (calendar-absolute-from-gregorian iso-date)
					;		    (time-to-days nil)))
					;	(setq year (1+ year)
					;	      iso-date (calendar-gregorian-from-absolute
					;			(calendar-iso-to-absolute
					;			 (list iso-week day year)))))
      (setq month (car iso-date)
	    year (nth 2 iso-date)
	    day (nth 1 iso-date)))
     (deltan
      (setq futurep nil)
      (unless deltadef
	(let ((now (decode-time)))
	  (setq day (nth 3 now) month (nth 4 now) year (nth 5 now))))
      (cond ((member deltaw '("h" ""))
             (when (boundp 'org-time-was-given)
               (setq org-time-was-given t))
             (setq hour (+ hour deltan)))
            ((member deltaw '("d" "")) (setq day (+ day deltan)))
            ((equal deltaw "w") (setq day (+ day (* 7 deltan))))
            ((equal deltaw "m") (setq month (+ month deltan)))
            ((equal deltaw "y") (setq year (+ year deltan)))))
     ((and wday (not (nth 3 tl)))
      ;; Weekday was given, but no day, so pick that day in the week
      ;; on or after the derived date.
      (setq wday1 (nth 6 (decode-time (org-encode-time 0 0 0 day month year))))
      (unless (equal wday wday1)
	(setq day (+ day (% (- wday wday1 -7) 7))))))
    (when (and (boundp 'org-time-was-given)
	       (nth 2 tl))
      (setq org-time-was-given t))
    (when (< year 100) (setq year (+ 2000 year)))
    ;; Check of the date is representable
    (if org-read-date-force-compatible-dates
	(progn
	  (when (< year 1970)
	    (setq year 1970 org-read-date-analyze-forced-year t))
	  (when (> year 2037)
	    (setq year 2037 org-read-date-analyze-forced-year t)))
      (condition-case nil
	  (ignore (org-encode-time second minute hour day month year))
	(error
	 (setq year (nth 5 org-defdecode))
	 (setq org-read-date-analyze-forced-year t))))
    (setq org-read-date-analyze-futurep futurep)
    (list second minute hour day month year nil -1 nil)))

(defvar parse-time-weekdays)
(defun org-read-date-get-relative (s today default)
  "Check string S for special relative date string.
TODAY and DEFAULT are internal times, for today and for a default.
Return shift list (N what def-flag)
WHAT       is \"d\", \"w\", \"m\", or \"y\" for day, week, month, year.
N          is the number of WHATs to shift.
DEF-FLAG   is t when a double ++ or -- indicates shift relative to
           the DEFAULT date rather than TODAY."
  (require 'parse-time)
  (when (and
         ;; Force case-insensitive.
         (let ((case-fold-search t))
	   (string-match
	    (concat
	     "\\`[ \t]*\\([-+]\\{0,2\\}\\)"
	     "\\([0-9]+\\)?"
	     "\\([hdwmy]\\|\\(" (mapconcat 'car parse-time-weekdays "\\|") "\\)\\)?"
	     "\\([ \t]\\|$\\)") s))
	 (or (> (match-end 1) (match-beginning 1)) (match-end 4)))
    (let* ((dir (if (> (match-end 1) (match-beginning 1))
		    (string-to-char (substring (match-string 1 s) -1))
		  ?+))
	   (rel (and (match-end 1) (= 2 (- (match-end 1) (match-beginning 1)))))
	   (n (if (match-end 2) (string-to-number (match-string 2 s)) 1))
	   (what (if (match-end 3) (match-string 3 s) "d"))
	   (wday1 (cdr (assoc (downcase what) parse-time-weekdays)))
	   (date (if rel default today))
	   (wday (nth 6 (decode-time date)))
	   delta)
      (if wday1
	  (progn
	    (setq delta (mod (+ 7 (- wday1 wday)) 7))
	    (when (= delta 0) (setq delta 7))
	    (when (= dir ?-)
	      (setq delta (- delta 7))
	      (when (= delta 0) (setq delta -7)))
	    (when (> n 1) (setq delta (+ delta (* (1- n) (if (= dir ?-) -7 7)))))
	    (list delta "d" rel))
	(list (* n (if (= dir ?-) -1 1)) what rel)))))

(defun org-order-calendar-date-args (arg1 arg2 arg3)
  "Turn a user-specified date into the internal representation.
The internal representation needed by the calendar is (month day year).
This is a wrapper to handle the brain-dead convention in calendar that
user function argument order change dependent on argument order."
  (pcase calendar-date-style
    (`american (list arg1 arg2 arg3))
    (`european (list arg2 arg1 arg3))
    (`iso (list arg2 arg3 arg1))))

(defun org-eval-in-calendar (form &optional keepdate)
  "Eval FORM in the calendar window and return to current window.
Unless KEEPDATE is non-nil, update `org-ans2' to the cursor date."
  (let ((sf (selected-frame))
	(sw (selected-window)))
    (select-window (get-buffer-window calendar-buffer t))
    (eval form t)
    (when (and (not keepdate) (calendar-cursor-to-date))
      (let* ((date (calendar-cursor-to-date))
	     (time (org-encode-time 0 0 0 (nth 1 date) (nth 0 date) (nth 2 date))))
	(setq org-ans2 (format-time-string "%Y-%m-%d" time))))
    (move-overlay org-date-ovl (1- (point)) (1+ (point)) (current-buffer))
    (select-window sw)
    (select-frame-set-input-focus sf)))

(defun org-calendar-select ()
  "Return to `org-read-date' with the date currently selected.
This is used by `org-read-date' in a temporary keymap for the calendar buffer."
  (interactive)
  (when (calendar-cursor-to-date)
    (let* ((date (calendar-cursor-to-date))
	   (time (org-encode-time 0 0 0 (nth 1 date) (nth 0 date) (nth 2 date))))
      (setq org-ans1 (format-time-string "%Y-%m-%d" time)))
    (when (active-minibuffer-window) (exit-minibuffer))))

(defalias 'org-insert-time-stamp #'org-insert-timestamp)
(defun org-insert-timestamp (time &optional with-hm inactive pre post extra)
  "Insert a date stamp for the date given by the internal TIME.
See `format-time-string' for the format of TIME.
WITH-HM means use the stamp format that includes the time of the day.
INACTIVE means use square brackets instead of angular ones, so that the
stamp will not contribute to the agenda.
PRE and POST are optional strings to be inserted before and after the
stamp.
The command returns the inserted time stamp."
  (org-fold-core-ignore-modifications
    (let ((fmt (org-time-stamp-format with-hm inactive))
	  stamp)
      (insert-before-markers-and-inherit (or pre ""))
      (when (listp extra)
        (setq extra (car extra))
        (if (and (stringp extra)
	         (string-match "\\([0-9]+\\):\\([0-9]+\\)" extra))
	    (setq extra (format "-%02d:%02d"
			        (string-to-number (match-string 1 extra))
			        (string-to-number (match-string 2 extra))))
	  (setq extra nil)))
      (when extra
        (setq fmt (concat (substring fmt 0 -1) extra (substring fmt -1))))
      (insert-before-markers-and-inherit (setq stamp (format-time-string fmt time)))
      (insert-before-markers-and-inherit (or post ""))
      (setq org-last-inserted-timestamp stamp))))

(defalias 'org-toggle-time-stamp-overlays #'org-toggle-timestamp-overlays)
(defun org-toggle-timestamp-overlays ()
  "Toggle the use of custom time stamp formats."
  (interactive)
  (setq org-display-custom-times (not org-display-custom-times))
  (unless org-display-custom-times
    (let ((p (point-min)) (bmp (buffer-modified-p)))
      (while (setq p (next-single-property-change p 'display))
	(when (and (get-text-property p 'display)
		   (eq (get-text-property p 'face) 'org-date))
	  (remove-text-properties
	   p (setq p (next-single-property-change p 'display))
	   '(display t))))
      (set-buffer-modified-p bmp)))
  (org-restart-font-lock)
  (setq org-table-may-need-update t)
  (if org-display-custom-times
      (message "Time stamps are overlaid with custom format")
    (message "Time stamp overlays removed")))

(defun org-display-custom-time (beg end)
  "Overlay modified time stamp format over timestamp between BEG and END."
  (let* ((ts (buffer-substring beg end))
	 t1 with-hm tf time str (off 0))
    (save-match-data
      (setq t1 (org-parse-time-string ts t))
      (when (string-match "\\(-[0-9]+:[0-9]+\\)?\\( [.+]?\\+[0-9]+[hdwmy]\\(/[0-9]+[hdwmy]\\)?\\)?\\'" ts)
	(setq off (- (match-end 0) (match-beginning 0)))))
    (setq end (- end off))
    (setq with-hm (and (nth 1 t1) (nth 2 t1))
	  tf (org-time-stamp-format with-hm 'no-brackets 'custom)
	  time (org-fix-decoded-time t1)
	  str (org-add-props
		  (format-time-string tf (org-encode-time time))
		  nil 'mouse-face 'highlight))
    (put-text-property beg end 'display str)))

(defun org-fix-decoded-time (time)
  "Set 0 instead of nil for the first 6 elements of time.
Don't touch the rest."
  (let ((n 0))
    (mapcar (lambda (x) (if (< (setq n (1+ n)) 7) (or x 0) x)) time)))

(defalias 'org-time-stamp-to-now #'org-timestamp-to-now)
(defun org-timestamp-to-now (timestamp-string &optional seconds)
  "Difference between TIMESTAMP-STRING and now in days.
If SECONDS is non-nil, return the difference in seconds."
  (let ((fdiff (if seconds #'float-time #'time-to-days)))
    (- (funcall fdiff (org-time-string-to-time timestamp-string))
       (funcall fdiff nil))))

(defun org-deadline-close-p (timestamp-string &optional ndays)
  "Is the time in TIMESTAMP-STRING close to the current date?"
  (setq ndays (or ndays (org-get-wdays timestamp-string)))
  (and (<= (org-timestamp-to-now timestamp-string) ndays)
       (not (org-entry-is-done-p))))

(defun org-get-wdays (ts &optional delay zero-delay)
  "Get the deadline lead time appropriate for timestring TS.
When DELAY is non-nil, get the delay time for scheduled items
instead of the deadline lead time.  When ZERO-DELAY is non-nil
and `org-scheduled-delay-days' is 0, enforce 0 as the delay,
don't try to find the delay cookie in the scheduled timestamp."
  (let ((tv (if delay org-scheduled-delay-days
	      org-deadline-warning-days)))
    (cond
     ((or (and delay (< tv 0))
	  (and delay zero-delay (<= tv 0))
	  (and (not delay) (<= tv 0)))
      ;; Enforce this value no matter what
      (- tv))
     ((string-match "-\\([0-9]+\\)\\([hdwmy]\\)\\(\\'\\|>\\| \\)" ts)
      ;; lead time is specified.
      (floor (* (string-to-number (match-string 1 ts))
		(cdr (assoc (match-string 2 ts)
			    '(("d" . 1)    ("w" . 7)
			      ("m" . 30.4) ("y" . 365.25)
			      ("h" . 0.041667)))))))
     ;; go for the default.
     (t tv))))

(defun org-calendar-select-mouse (ev)
  "Return to `org-read-date' with the date currently selected.
This is used by `org-read-date' in a temporary keymap for the calendar buffer."
  (interactive "e")
  (mouse-set-point ev)
  (when (calendar-cursor-to-date)
    (let* ((date (calendar-cursor-to-date))
	   (time (org-encode-time 0 0 0 (nth 1 date) (nth 0 date) (nth 2 date))))
      (setq org-ans1 (format-time-string "%Y-%m-%d" time)))
    (when (active-minibuffer-window) (exit-minibuffer))))

(defun org-check-deadlines (ndays)
  "Check if there are any deadlines due or past due.
A deadline is considered due if it happens within `org-deadline-warning-days'
days from today's date.  If the deadline appears in an entry marked DONE,
it is not shown.  A numeric prefix argument NDAYS can be used to test that
many days.  If the prefix is a raw `\\[universal-argument]', all deadlines \
are shown."
  (interactive "P")
  (let* ((org-warn-days
	  (cond
	   ((equal ndays '(4)) 100000)
	   (ndays (prefix-numeric-value ndays))
	   (t (abs org-deadline-warning-days))))
	 (case-fold-search nil)
	 (regexp (concat "\\<" org-deadline-string " *<\\([^>]+\\)>"))
	 (callback
	  (lambda () (org-deadline-close-p (match-string 1) org-warn-days))))
    (message "%d deadlines past-due or due within %d days"
	     (org-occur regexp nil callback)
	     org-warn-days)))

(defsubst org-re-timestamp (type)
  "Return a regexp for timestamp TYPE.
Allowed values for TYPE are:

        all: all timestamps
     active: only active timestamps (<...>)
   inactive: only inactive timestamps ([...])
  scheduled: only scheduled timestamps
   deadline: only deadline timestamps
     closed: only closed timestamps

When TYPE is nil, fall back on returning a regexp that matches
both scheduled and deadline timestamps."
  (cl-case type
    (all org-ts-regexp-both)
    (active org-ts-regexp)
    (inactive org-ts-regexp-inactive)
    (scheduled org-scheduled-time-regexp)
    (deadline org-deadline-time-regexp)
    (closed org-closed-time-regexp)
    (otherwise
     (concat "\\<"
	     (regexp-opt (list org-deadline-string org-scheduled-string))
	     " *<\\([^>]+\\)>"))))

(defun org-check-before-date (d)
  "Check if there are deadlines or scheduled entries before date D."
  (interactive (list (org-read-date)))
  (let* ((case-fold-search nil)
	 (regexp (org-re-timestamp org-ts-type))
	 (ts-type org-ts-type)
	 (callback
	  (lambda ()
	    (let ((match (match-string 1)))
	      (and (if (memq ts-type '(active inactive all))
		       (org-element-type-p
                        (save-excursion
			  (backward-char)
			  (org-element-context))
			'timestamp)
		     (org-at-planning-p))
		   (time-less-p
		    (org-time-string-to-time match)
		    (org-time-string-to-time d)))))))
    (message "%d entries before %s"
	     (org-occur regexp nil callback)
	     d)))

(defun org-check-after-date (d)
  "Check if there are deadlines or scheduled entries after date D."
  (interactive (list (org-read-date)))
  (let* ((case-fold-search nil)
	 (regexp (org-re-timestamp org-ts-type))
	 (ts-type org-ts-type)
	 (callback
	  (lambda ()
	    (let ((match (match-string 1)))
	      (and (if (memq ts-type '(active inactive all))
		       (org-element-type-p
                        (save-excursion
			  (backward-char)
			  (org-element-context))
			'timestamp)
		     (org-at-planning-p))
		   (not (time-less-p
		       (org-time-string-to-time match)
		       (org-time-string-to-time d))))))))
    (message "%d entries after %s"
	     (org-occur regexp nil callback)
	     d)))

(defun org-check-dates-range (start-date end-date)
  "Check for deadlines/scheduled entries between START-DATE and END-DATE."
  (interactive (list (org-read-date nil nil nil "Range starts")
		     (org-read-date nil nil nil "Range end")))
  (let ((case-fold-search nil)
	(regexp (org-re-timestamp org-ts-type))
	(callback
	 (let ((type org-ts-type))
	   (lambda ()
	     (let ((match (match-string 1)))
	       (and
		(if (memq type '(active inactive all))
		    (org-element-type-p
                     (save-excursion
		       (backward-char)
		       (org-element-context))
		     'timestamp)
		  (org-at-planning-p))
		(not (time-less-p
		    (org-time-string-to-time match)
		    (org-time-string-to-time start-date)))
		(time-less-p
		 (org-time-string-to-time match)
		 (org-time-string-to-time end-date))))))))
    (message "%d entries between %s and %s"
	     (org-occur regexp nil callback) start-date end-date)))

(defun org-evaluate-time-range (&optional to-buffer)
  "Evaluate a time range by computing the difference between start and end.
Normally the result is just printed in the echo area, but with prefix arg
TO-BUFFER, the result is inserted just after the date stamp into the buffer.
If the time range is actually in a table, the result is inserted into the
next column.
For time difference computation, a year is assumed to be exactly 365
days in order to avoid rounding problems."
  (interactive "P")
  (or
   (org-clock-update-time-maybe)
   (save-excursion
     (unless (org-at-date-range-p t)
       (goto-char (line-beginning-position))
       (re-search-forward org-tr-regexp-both (line-end-position) t))
     (unless (org-at-date-range-p t)
       (user-error "Not at a timestamp range, and none found in current line")))
   (let* ((ts1 (match-string 1))
	  (ts2 (match-string 2))
	  (havetime (or (> (length ts1) 15) (> (length ts2) 15)))
	  (match-end (match-end 0))
	  (time1 (org-time-string-to-time ts1))
	  (time2 (org-time-string-to-time ts2))
	  (diff (abs (float-time (time-subtract time2 time1))))
	  (negative (time-less-p time2 time1))
	  ;; (ys (floor (* 365 24 60 60)))
	  (ds (* 24 60 60))
	  (hs (* 60 60))
	  (fy "%dy %dd %02d:%02d")
	  (fy1 "%dy %dd")
	  (fd "%dd %02d:%02d")
	  (fd1 "%dd")
	  (fh "%02d:%02d")
	  y d h m align)
     (if havetime
	 (setq ; y (floor diff ys)  diff (mod diff ys)
	  y 0
	  d (floor diff ds)  diff (mod diff ds)
	  h (floor diff hs)  diff (mod diff hs)
	  m (floor diff 60))
       (setq ; y (floor diff ys)  diff (mod diff ys)
	y 0
	d (round diff ds)
	h 0 m 0))
     (if (not to-buffer)
	 (message "%s" (org-make-tdiff-string y d h m))
       (if (org-at-table-p)
	   (progn
	     (goto-char match-end)
	     (setq align t)
	     (and (looking-at " *|") (goto-char (match-end 0))))
	 (goto-char match-end))
       (when (looking-at
	      "\\( *-? *[0-9]+y\\)?\\( *[0-9]+d\\)? *[0-9][0-9]:[0-9][0-9]")
	 (replace-match ""))
       (when negative (insert " -"))
       (if (> y 0) (insert " " (format (if havetime fy fy1) y d h m))
	 (if (> d 0) (insert " " (format (if havetime fd fd1) d h m))
	   (insert " " (format fh h m))))
       (when align (org-table-align))
       (message "Time difference inserted")))))

(defun org-make-tdiff-string (y d h m)
  (let ((fmt "")
	(l nil))
    (when (> y 0)
      (setq fmt (concat fmt "%d year" (if (> y 1) "s" "") " "))
      (push y l))
    (when (> d 0)
      (setq fmt (concat fmt "%d day"  (if (> d 1) "s" "") " "))
      (push d l))
    (when (> h 0)
      (setq fmt (concat fmt "%d hour" (if (> h 1) "s" "") " "))
      (push h l))
    (when (> m 0)
      (setq fmt (concat fmt "%d minute" (if (> m 1) "s" "") " "))
      (push m l))
    (apply 'format fmt (nreverse l))))

(defun org-time-string-to-time (s)
  "Convert timestamp string S into internal time."
  (org-encode-time (org-parse-time-string s)))

(defun org-time-string-to-seconds (s)
  "Convert a timestamp string S into a number of seconds."
  (float-time (org-time-string-to-time s)))

(define-error 'org-diary-sexp-no-match "Unable to match diary sexp")

(defun org-time-string-to-absolute (s &optional daynr prefer buffer pos)
  "Convert time stamp S to an absolute day number.

If DAYNR in non-nil, and there is a specifier for a cyclic time
stamp, get the closest date to DAYNR.  If PREFER is
`past' (respectively `future') return a date past (respectively
after) or equal to DAYNR.

POS is the location of time stamp S, as a buffer position in
BUFFER.

Diary sexp timestamps are matched against DAYNR, when non-nil.
If matching fails or DAYNR is nil, `org-diary-sexp-no-match' is
signaled."
  (cond
   ((string-match "\\`%%\\((.*)\\)" s)
    ;; Sexp timestamp: try to match DAYNR, if available, since we're
    ;; only able to match individual dates.  If it fails, raise an
    ;; error.
    (if (and daynr
	     (org-diary-sexp-entry
	      (match-string 1 s) "" (calendar-gregorian-from-absolute daynr)))
	daynr
      (signal 'org-diary-sexp-no-match (list s))))
   (daynr (org-closest-date s daynr prefer))
   (t (time-to-days
       (condition-case errdata
	   (org-time-string-to-time s)
	 (error (error "Bad timestamp `%s'%s\nError was: %s"
		       s
		       (if (not (and buffer pos)) ""
			 (format-message " at %d in buffer `%s'" pos buffer))
		       (cdr errdata))))))))

(defun org-days-to-iso-week (days)
  "Return the ISO week number."
  (require 'cal-iso)
  (car (calendar-iso-from-absolute days)))

(defun org-small-year-to-year (year)
  "Convert 2-digit years into 4-digit years.
YEAR is expanded into one of the 30 next years, if possible, or
into a past one.  Any year larger than 99 is returned unchanged."
  (if (>= year 100) year
    (let* ((current (string-to-number (format-time-string "%Y")))
	   (century (/ current 100))
	   (offset (- year (% current 100))))
      (cond ((> offset 30) (+ (* (1- century) 100) year))
	    ((> offset -70) (+ (* century 100) year))
	    (t (+ (* (1+ century) 100) year))))))

(defun org-time-from-absolute (d)
  "Return the time corresponding to date D.
D may be an absolute day number, or a calendar-type list (month day year)."
  (when (numberp d) (setq d (calendar-gregorian-from-absolute d)))
  (org-encode-time 0 0 0 (nth 1 d) (car d) (nth 2 d)))

(defvar org-agenda-current-date)
(defun org-calendar-holiday ()
  "List of holidays, for Diary display in Org mode."
  (require 'holidays)
  (let ((hl (calendar-check-holidays org-agenda-current-date)))
    (and hl (mapconcat #'identity hl "; "))))

(defvar org--diary-sexp-entry-cache (make-hash-table :test #'equal)
  "Hash table holding return values of `org-diary-sexp-entry'.")
(defun org-diary-sexp-entry (sexp entry d)
  "Process a SEXP diary ENTRY for date D."
  (require 'diary-lib)
  ;; `org-anniversary' and alike expect ENTRY and DATE to be bound
  ;; dynamically.
  (let ((cached (gethash (list sexp entry d) org--diary-sexp-entry-cache 'none)))
    (if (not (eq 'none cached)) cached
      (puthash (list sexp entry d)
               (let* ((sexp `(let ((entry ,entry)
		                   (date ',d))
		               ,(car (read-from-string sexp))))
                      ;; FIXME: Do not use (eval ... t) in the following sexp as
                      ;; diary vars are still using dynamic scope.
	              (result (if calendar-debug-sexp (eval sexp)
		                (condition-case nil
		                    (eval sexp)
		                  (error
		                   (beep)
		                   (message "Bad sexp at line %d in %s: %s"
			                    (org-current-line)
			                    (buffer-file-name) sexp)
		                   (sleep-for 2))))))
                 (cond ((stringp result) (split-string result "; "))
	               ((and (consp result)
		             (not (consp (cdr result)))
		             (stringp (cdr result)))
	                (cdr result))
	               ((and (consp result)
		             (stringp (car result)))
	                result)
	               (result entry)))
               org--diary-sexp-entry-cache))))

(defun org-diary-to-ical-string (frombuf)
  "Get iCalendar entries from diary entries in buffer FROMBUF.
This uses the icalendar.el library."
  (let* ((tmpdir temporary-file-directory)
	 (tmpfile (make-temp-name
		   (expand-file-name "orgics" tmpdir)))
	 buf rtn b e)
    (unwind-protect
        (with-current-buffer frombuf
          (icalendar-export-region (point-min) (point-max) tmpfile)
          (setq buf (find-buffer-visiting tmpfile))
          (set-buffer buf)
          (goto-char (point-min))
          (when (re-search-forward "^BEGIN:VEVENT" nil t)
	    (setq b (match-beginning 0)))
          (goto-char (point-max))
          (when (re-search-backward "^END:VEVENT" nil t)
	    (setq e (match-end 0)))
          (setq rtn (if (and b e) (concat (buffer-substring b e) "\n") "")))
      (when (and buf (buffer-live-p buf)) (kill-buffer buf))
      (delete-file tmpfile))
    rtn))

(defun org-closest-date (start current prefer)
  "Return closest date to CURRENT starting from START.

CURRENT and START are both time stamps.

When PREFER is `past', return a date that is either CURRENT or
past.  When PREFER is `future', return a date that is either
CURRENT or future.

Only time stamps with a repeater are modified.  Any other time
stamp stay unchanged.  In any case, return value is an absolute
day number."
  (if (not (string-match "\\+\\([0-9]+\\)\\([hdwmy]\\)" start))
      ;; No repeater.  Do not shift time stamp.
      (time-to-days (org-time-string-to-time start))
    (let ((value (string-to-number (match-string 1 start)))
	  (type (match-string 2 start)))
      (if (= 0 value)
	  ;; Repeater with a 0-value is considered as void.
	  (time-to-days (org-time-string-to-time start))
	(let* ((base (org-date-to-gregorian start))
	       (target (org-date-to-gregorian current))
	       (sday (calendar-absolute-from-gregorian base))
	       (cday (calendar-absolute-from-gregorian target))
	       n1 n2)
	  ;; If START is already past CURRENT, just return START.
	  (if (<= cday sday) sday
	    ;; Compute closest date before (N1) and closest date past
	    ;; (N2) CURRENT.
	    (pcase type
	      ("h"
	       (let ((missing-hours
		      (mod (+ (- (* 24 (- cday sday))
				 (nth 2 (org-parse-time-string start)))
			      org-extend-today-until)
			   value)))
		 (setf n1 (if (= missing-hours 0) cday
			    (- cday (1+ (/ missing-hours 24)))))
		 (setf n2 (+ cday (/ (- value missing-hours) 24)))))
	      ((or "d" "w")
	       (let ((value (if (equal type "w") (* 7 value) value)))
		 (setf n1 (+ sday (* value (/ (- cday sday) value))))
		 (setf n2 (+ n1 value))))
	      ("m"
	       (let* ((add-months
		       (lambda (d n)
			 ;; Add N months to gregorian date D, i.e.,
			 ;; a list (MONTH DAY YEAR).  Return a valid
			 ;; gregorian date.
			 (let ((m (+ (nth 0 d) n)))
			   (list (mod m 12)
				 (nth 1 d)
				 (+ (/ m 12) (nth 2 d))))))
		      (months		; Complete months to TARGET.
		       (* (/ (+ (* 12 (- (nth 2 target) (nth 2 base)))
				(- (nth 0 target) (nth 0 base))
				;; If START's day is greater than
				;; TARGET's, remove incomplete month.
				(if (> (nth 1 target) (nth 1 base)) 0 -1))
			     value)
			  value))
		      (before (funcall add-months base months)))
		 (setf n1 (calendar-absolute-from-gregorian before))
		 (setf n2
		       (calendar-absolute-from-gregorian
			(funcall add-months before value)))))
	      (_
	       (let* ((d (nth 1 base))
		      (m (nth 0 base))
		      (y (nth 2 base))
		      (years		; Complete years to TARGET.
		       (* (/ (- (nth 2 target)
				y
				;; If START's month and day are
				;; greater than TARGET's, remove
				;; incomplete year.
				(if (or (> (nth 0 target) m)
					(and (= (nth 0 target) m)
					     (> (nth 1 target) d)))
				    0
				  1))
			     value)
			  value))
		      (before (list m d (+ y years))))
		 (setf n1 (calendar-absolute-from-gregorian before))
		 (setf n2 (calendar-absolute-from-gregorian
			   (list m d (+ (nth 2 before) value)))))))
	    ;; Handle PREFER parameter, if any.
	    (cond
	     ((eq prefer 'past)   (if (= cday n2) n2 n1))
	     ((eq prefer 'future) (if (= cday n1) n1 n2))
	     (t (if (> (abs (- cday n1)) (abs (- cday n2))) n2 n1)))))))))

(defun org-date-to-gregorian (d)
  "Turn any specification of date D into a Gregorian date for the calendar."
  (cond ((integerp d) (calendar-gregorian-from-absolute d))
	((and (listp d) (= (length d) 3)) d)
	((stringp d)
	 (let ((d (org-parse-time-string d)))
	   (list (nth 4 d) (nth 3 d) (nth 5 d))))
	((listp d) (list (nth 4 d) (nth 3 d) (nth 5 d)))))

(defun org-timestamp-up (&optional arg)
  "Increase the date item at the cursor by one.
If the cursor is on the year, change the year.  If it is on the month,
the day or the time, change that.  If the cursor is on the enclosing
bracket, change the timestamp type.
With prefix ARG, change by that many units."
  (interactive "p")
  (org-timestamp-change (prefix-numeric-value arg) nil 'updown))

(defun org-timestamp-down (&optional arg)
  "Decrease the date item at the cursor by one.
If the cursor is on the year, change the year.  If it is on the month,
the day or the time, change that.  If the cursor is on the enclosing
bracket, change the timestamp type.
With prefix ARG, change by that many units."
  (interactive "p")
  (org-timestamp-change (- (prefix-numeric-value arg)) nil 'updown))

(defun org-timestamp-up-day (&optional arg)
  "Increase the date in the time stamp by one day.
With prefix ARG, change that many days."
  (interactive "p")
  (if (and (not (org-at-timestamp-p 'lax))
	   (org-at-heading-p))
      (org-todo 'up)
    (org-timestamp-change (prefix-numeric-value arg) 'day 'updown)))

(defun org-timestamp-down-day (&optional arg)
  "Decrease the date in the time stamp by one day.
With prefix ARG, change that many days."
  (interactive "p")
  (if (and (not (org-at-timestamp-p 'lax))
	   (org-at-heading-p))
      (org-todo 'down)
    (org-timestamp-change (- (prefix-numeric-value arg)) 'day) 'updown))

(defun org-at-timestamp-p (&optional extended)
  "Non-nil if point is inside a timestamp.

By default, the function only consider syntactically valid active
timestamps.  However, the caller may have a broader definition
for timestamps.  As a consequence, optional argument EXTENDED can
be set to the following values

  `inactive'

    Include also syntactically valid inactive timestamps.

  `agenda'

    Include timestamps allowed in Agenda, i.e., those in
    properties drawers, planning lines and clock lines.

  `lax'

    Ignore context.  The function matches any part of the
    document looking like a timestamp.  This includes comments,
    example blocks...

For backward-compatibility with Org 9.0, every other non-nil
value is equivalent to `inactive'.

When at a timestamp, return the position of the point as a symbol
among `bracket', `after', `year', `month', `hour', `minute',
`day' or a number of character from the last know part of the
time stamp.  If diary sexp timestamps, any point inside the timestamp
is considered `day' (i.e. only `bracket', `day', and `after' return
values are possible).

When matching, the match groups are the following:
  group 2: year, if any
  group 3: month, if any
  group 4: day number, if any
  group 5: day name, if any
  group 7: hours, if any
  group 8: minutes, if any"
  (let* ((regexp
          (if extended
              (if (eq extended 'agenda)
                  (rx-to-string
                   `(or (regexp ,org-ts-regexp3)
                        (regexp ,org-element--timestamp-regexp)))
		org-ts-regexp3)
            org-ts-regexp2))
	 (pos (point))
	 (match?
	  (let ((boundaries (org-in-regexp regexp)))
	    (save-match-data
	      (cond ((null boundaries) nil)
		    ((eq extended 'lax) t)
		    (t
		     (or (and (eq extended 'agenda)
			      (or (org-at-planning-p)
				  (org-at-property-p)
				  (and (bound-and-true-p
					org-agenda-include-inactive-timestamps)
				       (org-at-clock-log-p))))
			 (eq 'timestamp
			     (save-excursion
			       (when (= pos (cdr boundaries)) (forward-char -1))
			       (org-element-type (org-element-context)))))))))))
    (cond
     ((not match?)                        nil)
     ((= pos (match-beginning 0))         'bracket)
     ;; Distinguish location right before the closing bracket from
     ;; right after it.
     ((= pos (1- (match-end 0)))          'bracket)
     ((= pos (match-end 0))               'after)
     ((org-pos-in-match-range pos 2)      'year)
     ((org-pos-in-match-range pos 3)      'month)
     ((org-pos-in-match-range pos 7)      'hour)
     ((org-pos-in-match-range pos 8)      'minute)
     ((or (org-pos-in-match-range pos 4)
	  (org-pos-in-match-range pos 5)) 'day)
     ((and (or (match-end 8) (match-end 5))
           (> pos (or (match-end 8) (match-end 5)))
	   (< pos (match-end 0)))
      (- pos (or (match-end 8) (match-end 5))))
     (t                                   'day))))

(defun org-toggle-timestamp-type ()
  "Toggle the type (<active> or [inactive]) of a time stamp."
  (interactive)
  (when (org-at-timestamp-p 'lax)
    (let ((beg (match-beginning 0)) (end (match-end 0))
	  (map '((?\[ . "<") (?\] . ">") (?< . "[") (?> . "]"))))
      (save-excursion
	(goto-char beg)
	(while (re-search-forward "[][<>]" end t)
	  (replace-match (cdr (assoc (char-after (match-beginning 0)) map))
			 t t)))
      (message "Timestamp is now %sactive"
	       (if (equal (char-after beg) ?<) "" "in")))))

(defun org-at-clock-log-p ()
  "Non-nil if point is on a clock log line."
  (and (org-match-line org-clock-line-re)
       (org-element-type-p
        (save-match-data (org-element-at-point))
        'clock)))

(defvar org-clock-history)                     ; defined in org-clock.el
(defvar org-clock-adjust-closest nil)          ; defined in org-clock.el
(defun org-timestamp-change (n &optional what updown suppress-tmp-delay)
  "Change the date in the time stamp at point.

The date is changed by N times WHAT.  WHAT can be `day', `month',
`year', `hour', or `minute'.  If WHAT is not given, the cursor
position in the timestamp determines what is changed.

When optional argument UPDOWN is non-nil, minutes are rounded
according to `org-timestamp-rounding-minutes'.

When SUPPRESS-TMP-DELAY is non-nil, suppress delays like
\"--2d\"."
  (let ((origin (point))
	(timestamp? (org-at-timestamp-p 'lax))
	origin-cat
	with-hm inactive
	(dm (max (nth 1 org-timestamp-rounding-minutes) 1))
	extra rem
	ts time time0 fixnext clrgx)
    (unless timestamp? (user-error "Not at a timestamp"))
    (if (and (not what) (eq timestamp? 'bracket))
	(org-toggle-timestamp-type)
      ;; Point isn't on brackets.  Remember the part of the timestamp
      ;; the point was in.  Indeed, size of timestamps may change,
      ;; but point must be kept in the same category nonetheless.
      (setq origin-cat timestamp?)
      (when (and (not what) (not (eq timestamp? 'day))
		 org-display-custom-times
		 (get-text-property (point) 'display)
		 (not (get-text-property (1- (point)) 'display)))
	(setq timestamp? 'day))
      (setq timestamp? (or what timestamp?)
	    inactive (= (char-after (match-beginning 0)) ?\[)
	    ts (match-string 0))
      ;; FIXME: Instead of deleting everything and then inserting
      ;; later, we should make use of `replace-match', which preserves
      ;; markers.  The current implementation suffers from
      ;; `save-excursion' not preserving point inside the timestamp
      ;; once we delete the timestamp here.  The point moves to the
      ;; updated timestamp end.
      (replace-match "")
      (when (string-match
	     "\\(\\(-[012][0-9]:[0-5][0-9]\\)?\\( +[.+]?-?[-+][0-9]+[hdwmy]\\(/[0-9]+[hdwmy]\\)?\\)*\\)[]>]"
	     ts)
	(setq extra (match-string 1 ts))
	(when suppress-tmp-delay
	  (setq extra (replace-regexp-in-string " --[0-9]+[hdwmy]" "" extra))))
      (when (string-match "^.\\{10\\}.*?[0-9]+:[0-9][0-9]" ts)
	(setq with-hm t))
      (setq time0 (org-parse-time-string ts))
      (let ((increment n))
        (if (and updown
	         (eq timestamp? 'minute)
	         (not current-prefix-arg))
	    ;; This looks like s-up and s-down.  Change by one rounding step.
            (progn
	      (setq increment (* dm (cond ((> n 0) 1) ((< n 0) -1) (t 0))))
	      (unless (= 0 (setq rem (% (nth 1 time0) dm)))
	        (setcar (cdr time0) (+ (nth 1 time0)
				       (if (> n 0) (- rem) (- dm rem))))))
          ;; Do not round anything in `org-modify-ts-extra' when prefix
          ;; argument is supplied - just use whatever is provided by the
          ;; prefix argument.
          (setq dm 1))
        (setq time
	      (org-encode-time
               (apply #'list
                      (or (car time0) 0)
                      (+ (if (eq timestamp? 'minute) increment 0) (nth 1 time0))
                      (+ (if (eq timestamp? 'hour) increment 0)   (nth 2 time0))
                      (+ (if (eq timestamp? 'day) increment 0)    (nth 3 time0))
                      (+ (if (eq timestamp? 'month) increment 0)  (nth 4 time0))
                      (+ (if (eq timestamp? 'year) increment 0)   (nth 5 time0))
                      (nthcdr 6 time0)))))
      (when (and (memq timestamp? '(hour minute))
		 extra
		 (string-match "-\\([012][0-9]\\):\\([0-5][0-9]\\)" extra))
        ;; When modifying the start time in HH:MM-HH:MM range, update
        ;; end time as well.
	(setq extra (org-modify-ts-extra
		     extra ;; -HH:MM ...
                     ;; Fake position in EXTRA to force changing hours
                     ;; or minutes as needed.
		     (if (eq timestamp? 'hour)
                         2 ;; -H<H>:MM
                       5) ;; -HH:M<M>
		     n dm)))
      (when (integerp timestamp?)
	(setq extra (org-modify-ts-extra extra timestamp? n dm)))
      (when (eq what 'calendar)
	(let ((cal-date (org-get-date-from-calendar)))
	  (setcar (nthcdr 4 time0) (nth 0 cal-date)) ; month
	  (setcar (nthcdr 3 time0) (nth 1 cal-date)) ; day
	  (setcar (nthcdr 5 time0) (nth 2 cal-date)) ; year
	  (setcar time0 (or (car time0) 0))
	  (setcar (nthcdr 1 time0) (or (nth 1 time0) 0))
	  (setcar (nthcdr 2 time0) (or (nth 2 time0) 0))
	  (setq time (org-encode-time time0))))
      ;; Insert the new timestamp, and ensure point stays in the same
      ;; category as before (i.e. not after the last position in that
      ;; category).
      (let ((pos (point)))
	;; Stay before inserted string. `save-excursion' is of no use.
	(setq org-last-changed-timestamp
	      (org-insert-timestamp time with-hm inactive nil nil extra))
	(goto-char pos))
      (save-match-data
	(looking-at org-ts-regexp3)
	(goto-char
	 (pcase origin-cat
	   ;; `day' category ends before `hour' if any, or at the end
	   ;; of the day name.
	   (`day (min (or (match-beginning 7) (1- (match-end 5))) origin))
	   (`hour (min (match-end 7) origin))
	   (`minute (min (1- (match-end 8)) origin))
	   ((pred integerp) (min (1- (match-end 0)) origin))
	   ;; Point was right after the timestamp.  However, the
	   ;; timestamp length might have changed, so refer to
	   ;; (match-end 0) instead.
	   (`after (match-end 0))
	   ;; `year' and `month' have both fixed size: point couldn't
	   ;; have moved into another part.
	   (_ origin))))
      ;; Update clock if on a CLOCK line.
      (org-clock-update-time-maybe)
      ;; Maybe adjust the closest clock in `org-clock-history'
      (when org-clock-adjust-closest
	(if (not (and (org-at-clock-log-p)
		      (< 1 (length (delq nil (mapcar 'marker-position
						     org-clock-history))))))
	    (message "No clock to adjust")
	  (cond ((save-excursion	; fix previous clock?
		   (re-search-backward org-ts-regexp0 nil t)
		   (looking-back (concat org-clock-string " \\[")
				 (line-beginning-position)))
		 (setq fixnext 1 clrgx (concat org-ts-regexp0 "\\] =>.*$")))
		((save-excursion	; fix next clock?
		   (re-search-backward org-ts-regexp0 nil t)
		   (looking-at (concat org-ts-regexp0 "\\] =>")))
		 (setq fixnext -1 clrgx (concat org-clock-string " \\[" org-ts-regexp0))))
	  (save-window-excursion
	    ;; Find closest clock to point, adjust the previous/next one in history
	    (let* ((p (save-excursion (org-back-to-heading t)))
		   (cl (mapcar (lambda(c) (abs (- (marker-position c) p))) org-clock-history))
		   (clfixnth
		    (+ fixnext (- (length cl) (or (length (member (apply 'min cl) cl)) 100))))
		   (clfixpos (unless (> 0 clfixnth) (nth clfixnth org-clock-history))))
	      (if (not clfixpos)
		  (message "No clock to adjust")
		(save-excursion
		  (org-goto-marker-or-bmk clfixpos)
		  (org-fold-show-subtree)
		  (when (re-search-forward clrgx nil t)
		    (goto-char (match-beginning 1))
		    (let (org-clock-adjust-closest)
		      (org-timestamp-change n timestamp? updown))
		    (message "Clock adjusted in %s for heading: %s"
			     (file-name-nondirectory (buffer-file-name))
			     (org-get-heading t t)))))))))
      ;; Try to recenter the calendar window, if any.
      (when (and org-calendar-follow-timestamp-change
		 (get-buffer-window calendar-buffer t)
		 (memq timestamp? '(day month year)))
	(org-recenter-calendar (time-to-days time))))))

(defun org-modify-ts-extra (ts-string pos nincrements increment-step)
  "Change the lead-time/repeat fields at POS in timestamp string TS-STRING.
POS is the position in the timestamp string to be changed.
NINCREMENTS is the number of incremenets/decrements.

INCREMENT-STEP is step used for a single increment when POS in on
minutes.  Before incrementing minutes, they are rounded to
INCREMENT-STEP divisor."
  (let (;; increment order for dwmy: d-1=d; d+1=w; w+1=m; m+1=y; y+1=y.
        (idx '(("d" . 0) ("w" . 1) ("m" . 2) ("y" . 3) ("d" . -1) ("y" . 4)))
	pos-match-group hour minute new rem)
    (when (string-match "\\(-\\([012][0-9]\\):\\([0-5][0-9]\\)\\)?\\( +\\+\\([0-9]+\\)\\([dmwy]\\)\\)?\\( +-\\([0-9]+\\)\\([dmwy]\\)\\)?" ts-string)
      (cond
       ((or (org-pos-in-match-range pos 2) ;; POS in end hours
	    (org-pos-in-match-range pos 3)) ;; POS in end minutes
	(setq minute (string-to-number (match-string 3 ts-string))
	      hour (string-to-number (match-string 2 ts-string)))
	(if (org-pos-in-match-range pos 2) ;; POS in end hours
            ;; INCREMENT-STEP is only applicable to MINUTE.
	    (setq hour (+ hour nincrements))
	  (setq nincrements (* increment-step nincrements))
	  (unless (= 0 (setq rem (% minute increment-step)))
            ;; Round the MINUTE to INCREMENT-STEP.
	    (setq minute (+ minute (if (> nincrements 0) (- rem) (- increment-step rem)))))
	  (setq minute (+ minute nincrements)))
	(when (< minute 0) (setq minute (+ minute 60) hour (1- hour)))
	(when (> minute 59) (setq minute (- minute 60) hour (1+ hour)))
	(setq hour (mod hour 24))
	(setq pos-match-group 1
              new (format "-%02d:%02d" hour minute)))
       
       ((org-pos-in-match-range pos 6) ;; POS on "dmwy" repeater char.
	(setq pos-match-group 6
              new (car (rassoc (+ nincrements (cdr (assoc (match-string 6 ts-string) idx))) idx))))
       
       ((org-pos-in-match-range pos 5) ;; POS on X in "Xd" repeater.
	(setq pos-match-group 5
              ;; Never drop below X=1.
              new (format "%d" (max 1 (+ nincrements (string-to-number (match-string 5 ts-string)))))))
       
       ((org-pos-in-match-range pos 9) ;; POS on "dmwy" repeater in warning interval.
	(setq pos-match-group 9
              new (car (rassoc (+ nincrements (cdr (assoc (match-string 9 ts-string) idx))) idx))))
       
       ((org-pos-in-match-range pos 8) ;; POS on X in "Xd" in warning interval.
	(setq pos-match-group 8
              ;; Never drop below X=0.
              new (format "%d" (max 0 (+ nincrements (string-to-number (match-string 8 ts-string))))))))

      (when pos-match-group
	(setq ts-string (concat
		         (substring ts-string 0 (match-beginning pos-match-group))
		         new
		         (substring ts-string (match-end pos-match-group))))))
    ts-string))

(defun org-recenter-calendar (d)
  "If the calendar is visible, recenter it to date D."
  (let ((cwin (get-buffer-window calendar-buffer t)))
    (when cwin
      (let ((calendar-move-hook nil))
	(with-selected-window cwin
	  (calendar-goto-date
	   (if (listp d) d (calendar-gregorian-from-absolute d))))))))

(defun org-goto-calendar (&optional arg)
  "Go to the Emacs calendar at the current date.
If there is a time stamp in the current line, go to that date.
A prefix ARG can be used to force the current date."
  (interactive "P")
  (let ((calendar-move-hook nil)
	(calendar-view-holidays-initially-flag nil)
	(calendar-view-diary-initially-flag nil)
	diff)
    (when (or (org-at-timestamp-p 'lax)
	      (org-match-line (concat ".*" org-ts-regexp)))
      (let ((d1 (time-to-days nil))
	    (d2 (time-to-days (org-time-string-to-time (match-string 1)))))
	(setq diff (- d2 d1))))
    (calendar)
    (calendar-goto-today)
    (when (and diff (not arg)) (calendar-forward-day diff))))

(defun org-get-date-from-calendar ()
  "Return a list (month day year) of date at point in calendar."
  (with-current-buffer calendar-buffer
    (save-match-data
      (calendar-cursor-to-date))))

(defun org-date-from-calendar ()
  "Insert time stamp corresponding to cursor date in *Calendar* buffer.
If there is already a time stamp at the cursor position, update it."
  (interactive)
  (if (org-at-timestamp-p 'lax)
      (org-timestamp-change 0 'calendar)
    (let ((cal-date (org-get-date-from-calendar)))
      (org-insert-timestamp
       (org-encode-time 0 0 0 (nth 1 cal-date) (car cal-date) (nth 2 cal-date))))))

(defcustom org-image-actual-width t
  "When non-nil, use the actual width of images when inlining them.

When set to a number, use imagemagick (when available) to set the
image's width to this value.

When set to a number in a list, try to get the width from any
#+ATTR.* keyword if it matches a width specification like

  #+ATTR_HTML: :width 300px

and fall back on that number if none is found.

When set to nil, try to get the width from an #+ATTR.* keyword
and fall back on the original width if none is found.

When set to any other non-nil value, always use the image width.

This requires Emacs >= 24.1, built with imagemagick support."
  :group 'org-appearance
  :version "24.4"
  :package-version '(Org . "8.0")
  :type '(choice
	  (const :tag "Use the image width" t)
	  (integer :tag "Use a number of pixels")
	  (list :tag "Use #+ATTR* or a number of pixels" (integer))
	  (const :tag "Use #+ATTR* or don't resize" nil)))

(defcustom org-image-max-width 'fill-column
  "When non-nil, limit the displayed image width.
This setting only takes effect when `org-image-actual-width' is set to
t or when #+ATTR* is set to t.

Possible values:
- `fill-column' :: limit width to `fill-column'
- `window'      :: limit width to window width
- integer       :: limit width to number in pixels
- float         :: limit width to that fraction of window width
- nil             :: do not limit image width"
  :group 'org-appearance
  :package-version '(Org . "9.7")
  :type '(choice
          (const :tag "Do not limit image width" nil)
          (const :tag "Limit to `fill-column'" fill-column)
          (const :tag "Limit to window width" window)
          (integer :tag "Limit to a number of pixels")
          (float :tag "Limit to a fraction of window width")))

(defcustom org-agenda-inhibit-startup nil
  "Inhibit startup when preparing agenda buffers.
When this variable is t, the initialization of the Org agenda
buffers is inhibited: e.g. the visibility state is not set, the
tables are not re-aligned, etc."
  :type 'boolean
  :version "24.3"
  :group 'org-agenda)

(defcustom org-agenda-ignore-properties nil
  "Avoid updating text properties when building the agenda.
Properties are used to prepare buffers for effort estimates,
appointments, statistics and subtree-local categories.
If you don't use these in the agenda, you can add them to this
list and agenda building will be a bit faster.
The value is a list, with symbol `stats'."
  :type '(set :greedy t
	      (const stats))
  :package-version '(Org . "9.7")
  :group 'org-agenda)

;;;; Files

(defun org-save-all-org-buffers ()
  "Save all Org buffers without user confirmation."
  (interactive)
  (message "Saving all Org buffers...")
  (save-some-buffers t (lambda () (and (derived-mode-p 'org-mode) t)))
  (when (featurep 'org-id) (org-id-locations-save))
  (message "Saving all Org buffers... done"))

(defun org-revert-all-org-buffers ()
  "Revert all Org buffers.
Prompt for confirmation when there are unsaved changes.
Be sure you know what you are doing before letting this function
overwrite your changes.

This function is useful in a setup where one tracks Org files
with a version control system, to revert on one machine after pulling
changes from another.  I believe the procedure must be like this:

1. \\[org-save-all-org-buffers]
2. Pull changes from the other machine, resolve conflicts
3. \\[org-revert-all-org-buffers]"
  (interactive)
  (unless (yes-or-no-p "Revert all Org buffers from their files? ")
    (user-error "Abort"))
  (save-excursion
    (save-window-excursion
      (dolist (b (buffer-list))
	(when (and (with-current-buffer b (derived-mode-p 'org-mode))
		   (with-current-buffer b buffer-file-name))
	  (pop-to-buffer-same-window b)
	  (revert-buffer t 'no-confirm)))
      (when (and (featurep 'org-id) org-id-track-globally)
	(org-id-locations-load)))))

;;;; Agenda files

;;;###autoload
(defun org-switchb (&optional arg)
  "Switch between Org buffers.

With `\\[universal-argument]' prefix, restrict available buffers to files.

With `\\[universal-argument] \\[universal-argument]' \
prefix, restrict available buffers to agenda files."
  (interactive "P")
  (let ((blist (org-buffer-list
		(cond ((equal arg '(4))  'files)
		      ((equal arg '(16)) 'agenda)))))
    (pop-to-buffer-same-window
     (completing-read "Org buffer: "
		      (mapcar #'list (mapcar #'buffer-name blist))
		      nil t))))

(defun org-agenda-files (&optional unrestricted archives)
  "Get the list of agenda files.
Optional UNRESTRICTED means return the full list even if a restriction
is currently in place.
When ARCHIVES is t, include all archive files that are really being
used by the agenda files.  If ARCHIVE is `ifmode', do this only if
`org-agenda-archives-mode' is t."
  (let ((files
	 (cond
	  ((and (not unrestricted) (get 'org-agenda-files 'org-restrict)))
	  ((stringp org-agenda-files) (org-read-agenda-file-list))
	  ((listp org-agenda-files) org-agenda-files)
	  (t (error "Invalid value of `org-agenda-files'")))))
    (setq files (apply 'append
		       (mapcar (lambda (f)
				 (if (file-directory-p f)
				     (directory-files
				      f t org-agenda-file-regexp)
				   (list (expand-file-name f org-directory))))
			       files)))
    (when org-agenda-skip-unavailable-files
      (setq files (delq nil
			(mapcar (lambda (file)
				  (and (file-readable-p file) file))
				files))))
    (when (or (eq archives t)
	      (and (eq archives 'ifmode) (eq org-agenda-archives-mode t)))
      (setq files (org-add-archive-files files)))
    (delete-dups files)))

(defun org-agenda-file-p (&optional file)
  "Return non-nil, if FILE is an agenda file.
If FILE is omitted, use the file associated with the current
buffer."
  (let ((fname (or file (buffer-file-name))))
    (and fname
         (member (file-truename fname)
                 (mapcar #'file-truename (org-agenda-files t))))))

(defun org-edit-agenda-file-list ()
  "Edit the list of agenda files.
Depending on setup, this either uses customize to edit the variable
`org-agenda-files', or it visits the file that is holding the list.  In the
latter case, the buffer is set up in a way that saving it automatically kills
the buffer and restores the previous window configuration."
  (interactive)
  (if (stringp org-agenda-files)
      (let ((cw (current-window-configuration)))
	(find-file org-agenda-files)
	(setq-local org-window-configuration cw)
	(add-hook 'after-save-hook
		  (lambda ()
		    (set-window-configuration
		     (prog1 org-window-configuration
		       (kill-buffer (current-buffer))))
		    (org-install-agenda-files-menu)
		    (message "New agenda file list installed"))
		  nil 'local)
	(message "%s" (substitute-command-keys
		       "Edit list and finish with \\[save-buffer]")))
    (customize-variable 'org-agenda-files)))

(defun org-store-new-agenda-file-list (list)
  "Set new value for the agenda file list and save it correctly."
  (if (stringp org-agenda-files)
      (let ((fe (org-read-agenda-file-list t)) b u)
	(while (setq b (find-buffer-visiting org-agenda-files))
	  (kill-buffer b))
	(with-temp-file org-agenda-files
	  (insert
	   (mapconcat
	    (lambda (f) ;; Keep un-expanded entries.
	      (if (setq u (assoc f fe))
		  (cdr u)
		f))
	    list "\n")
	   "\n")))
    (let ((org-mode-hook nil) (org-inhibit-startup t)
	  (org-insert-mode-line-in-empty-file nil))
      (setq org-agenda-files list)
      (customize-save-variable 'org-agenda-files org-agenda-files))))

(defun org-read-agenda-file-list (&optional pair-with-expansion)
  "Read the list of agenda files from a file.
If PAIR-WITH-EXPANSION is t return pairs with un-expanded
filenames, used by `org-store-new-agenda-file-list' to write back
un-expanded file names."
  (when (file-directory-p org-agenda-files)
    (error "`org-agenda-files' cannot be a single directory"))
  (when (stringp org-agenda-files)
    (with-temp-buffer
      (insert-file-contents org-agenda-files)
      (mapcar
       (lambda (f)
	 (let ((e (expand-file-name (substitute-in-file-name f)
				    org-directory)))
	   (if pair-with-expansion
	       (cons e f)
	     e)))
       (org-split-string (buffer-string) "[ \t\r\n]*?[\r\n][ \t\r\n]*")))))

;;;###autoload
(defun org-cycle-agenda-files ()
  "Cycle through the files in `org-agenda-files'.
If the current buffer visits an agenda file, find the next one in the list.
If the current buffer does not, find the first agenda file."
  (interactive)
  (let* ((fs (or (org-agenda-files t)
		 (user-error "No agenda files")))
	 (files (copy-sequence fs))
	 (tcf (and buffer-file-name (file-truename buffer-file-name)))
	 file)
    (when tcf
      (while (and (setq file (pop files))
		  (not (equal (file-truename file) tcf)))))
    (find-file (car (or files fs)))
    (when (buffer-base-buffer) (pop-to-buffer-same-window (buffer-base-buffer)))))

(defun org-agenda-file-to-front (&optional to-end)
  "Move/add the current file to the top of the agenda file list.
If the file is not present in the list, it is added to the front.  If it is
present, it is moved there.  With optional argument TO-END, add/move to the
end of the list."
  (interactive "P")
  (let ((org-agenda-skip-unavailable-files nil)
	(file-alist (mapcar (lambda (x)
			      (cons (file-truename x) x))
			    (org-agenda-files t)))
	(ctf (file-truename
	      (or buffer-file-name
		  (user-error "Please save the current buffer to a file"))))
	x had)
    (setq x (assoc ctf file-alist) had x)

    (unless x (setq x (cons ctf (abbreviate-file-name buffer-file-name))))
    (if to-end
	(setq file-alist (append (delq x file-alist) (list x)))
      (setq file-alist (cons x (delq x file-alist))))
    (org-store-new-agenda-file-list (mapcar 'cdr file-alist))
    (org-install-agenda-files-menu)
    (message "File %s to %s of agenda file list"
	     (if had "moved" "added") (if to-end "end" "front"))))

(defun org-remove-file (&optional file)
  "Remove current file from the list of files in variable `org-agenda-files'.
These are the files which are being checked for agenda entries.
Optional argument FILE means use this file instead of the current."
  (interactive)
  (let* ((org-agenda-skip-unavailable-files nil)
	 (file (or file buffer-file-name
		   (user-error "Current buffer does not visit a file")))
	 (true-file (file-truename file))
	 (afile (abbreviate-file-name file))
	 (files (delq nil (mapcar
			   (lambda (x)
			     (unless (equal true-file
					    (file-truename x))
			       x))
			   (org-agenda-files t)))))
    (if (not (= (length files) (length (org-agenda-files t))))
	(progn
	  (org-store-new-agenda-file-list files)
	  (org-install-agenda-files-menu)
	  (message "Removed from Org Agenda list: %s" afile))
      (message "File was not in list: %s (not removed)" afile))))

(defun org-file-menu-entry (file)
  (vector file (list 'find-file file) t))

(defun org-check-agenda-file (file)
  "Make sure FILE exists.  If not, ask user what to do."
  (unless (file-exists-p file)
    (message "Non-existent agenda file %s.  [R]emove from list or [A]bort?"
	     (abbreviate-file-name file))
    (let ((r (downcase (read-char-exclusive))))
      (cond
       ((equal r ?r)
	(org-remove-file file)
	(throw 'nextfile t))
       (t (user-error "Abort"))))))

(defun org-get-agenda-file-buffer (file)
  "Get an agenda buffer visiting FILE.
If the buffer needs to be created, add it to the list of buffers
which might be released later."
  (let ((buf (org-find-base-buffer-visiting file)))
    (if buf
	buf ; just return it
      ;; Make a new buffer and remember it
      (setq buf (find-file-noselect file))
      (when buf (push buf org-agenda-new-buffers))
      buf)))

(defun org-release-buffers (blist)
  "Release all buffers in list, asking the user for confirmation when needed.
When a buffer is unmodified, it is just killed.  When modified, it is saved
\(if the user agrees) and then killed."
  (let (file)
    (dolist (buf blist)
      (setq file (buffer-file-name buf))
      (when (and (buffer-modified-p buf)
		 file
		 (y-or-n-p (format "Save file %s? " file)))
	(with-current-buffer buf (save-buffer)))
      (kill-buffer buf))))

(defun org-agenda-prepare-buffers (files)
  "Create buffers for all agenda files, protect archived trees and comments."
  (interactive)
  (let ((inhibit-read-only t)
	(org-inhibit-startup org-agenda-inhibit-startup)
        ;; Do not refresh list of agenda files in the menu when
        ;; opening every new file.
        (org-agenda-file-menu-enabled nil))
    (setq org-tag-alist-for-agenda nil
	  org-tag-groups-alist-for-agenda nil)
    (dolist (file files)
      (catch 'nextfile
        (with-current-buffer
            (if (bufferp file)
                file
              (org-check-agenda-file file)
              (org-get-agenda-file-buffer file))
          (org-with-wide-buffer
	   (org-set-regexps-and-options 'tags-only)
	   (or (memq 'stats org-agenda-ignore-properties)
	       (org-refresh-stats-properties))
           (dolist (el org-todo-keywords-1)
             (unless (member el org-todo-keywords-for-agenda)
               (push el org-todo-keywords-for-agenda)))
           (dolist (el org-done-keywords)
             (unless (member el org-done-keywords-for-agenda)
               (push el org-done-keywords-for-agenda)))
	   (setq org-todo-keyword-alist-for-agenda
                 (org--tag-add-to-alist
		  org-todo-key-alist
                  org-todo-keyword-alist-for-agenda))
	   (setq org-tag-alist-for-agenda
		 (org--tag-add-to-alist
		  org-current-tag-alist
                  org-tag-alist-for-agenda))
	   ;; Merge current file's tag groups into global
	   ;; `org-tag-groups-alist-for-agenda'.
	   (when org-group-tags
	     (dolist (alist org-tag-groups-alist)
	       (let ((old (assoc (car alist) org-tag-groups-alist-for-agenda)))
		 (if old
		     (setcdr old (org-uniquify (append (cdr old) (cdr alist))))
		   (push alist org-tag-groups-alist-for-agenda)))))))))
    ;; Refresh the menu once after loading all the agenda buffers.
    (when org-agenda-file-menu-enabled
      (org-install-agenda-files-menu))))

\f
;;;; CDLaTeX minor mode

(defvar org-cdlatex-mode-map (make-sparse-keymap)
  "Keymap for the minor `org-cdlatex-mode'.")

(org-defkey org-cdlatex-mode-map (kbd "_") #'org-cdlatex-underscore-caret)
(org-defkey org-cdlatex-mode-map (kbd "^") #'org-cdlatex-underscore-caret)
(org-defkey org-cdlatex-mode-map (kbd "`") #'cdlatex-math-symbol)
(org-defkey org-cdlatex-mode-map (kbd "'") #'org-cdlatex-math-modify)
(org-defkey org-cdlatex-mode-map (kbd "C-c {") #'org-cdlatex-environment-indent)

(defvar org-cdlatex-texmathp-advice-is-done nil
  "Flag remembering if we have applied the advice to texmathp already.")

(define-minor-mode org-cdlatex-mode
  "Toggle the minor `org-cdlatex-mode'.
This mode supports entering LaTeX environment and math in LaTeX fragments
in Org mode.
\\{org-cdlatex-mode-map}"
  :lighter " OCDL"
  (when org-cdlatex-mode
    ;; Try to load texmathp before cdlatex.  Otherwise, cdlatex can
    ;; bind `cdlatex--texmathp' to `ignore', not using `texmathp' at
    ;; all.
    (org-require-package 'texmathp "Auctex")
    (org-require-package 'cdlatex)
    (run-hooks 'cdlatex-mode-hook)
    (cdlatex-compute-tables))
  (unless org-cdlatex-texmathp-advice-is-done
    (setq org-cdlatex-texmathp-advice-is-done t)
    (advice-add 'texmathp :around #'org--math-p)))

(defun org--math-p (orig-fun &rest args)
  "Return t inside math fragments or running `cdlatex-math-symbol'.
This function is intended to be an :around advice for `texmathp'.

If Org mode thinks that point is actually inside
an embedded LaTeX environment, return t when the environment is math
or let `texmathp' do its job otherwise.
`\\[org-cdlatex-mode-map]'"
  (cond
   ((not (derived-mode-p 'org-mode)) (apply orig-fun args))
   ((eq this-command 'cdlatex-math-symbol)
    (setq texmathp-why '("cdlatex-math-symbol in org-mode" . 0))
    t)
   (t
    (let ((element (org-element-context)))
      (when (org-inside-LaTeX-fragment-p element)
        (pcase (substring-no-properties
                (org-element-property :value element)
                0 2)
          ((or "\\(" "\\[" (pred (string-match-p (rx string-start "$"))))
           (setq texmathp-why '("Org mode embedded math" . 0))
           t)
          (_ (apply orig-fun args))))))))

(defun turn-on-org-cdlatex ()
  "Unconditionally turn on `org-cdlatex-mode'."
  (org-cdlatex-mode 1))

(defun org-try-cdlatex-tab ()
  "Check if it makes sense to execute `cdlatex-tab', and do it if yes.
It makes sense to do so if `org-cdlatex-mode' is active and if the cursor is
  - inside a LaTeX fragment, or
  - after the first word in a line, where an abbreviation expansion could
    insert a LaTeX environment."
  (when org-cdlatex-mode
    (cond
     ;; Before any word on the line: No expansion possible.
     ((save-excursion (skip-chars-backward " \t") (bolp)) nil)
     ;; Just after first word on the line: Expand it.  Make sure it
     ;; cannot happen on headlines, though.
     ((save-excursion
	(skip-chars-backward "a-zA-Z0-9*")
	(skip-chars-backward " \t")
	(and (bolp) (not (org-at-heading-p))))
      (cdlatex-tab) t)
     ((org-inside-LaTeX-fragment-p) (cdlatex-tab) t))))

(defun org-cdlatex-underscore-caret (&optional _arg)
  "Execute `cdlatex-sub-superscript' in LaTeX fragments.
Revert to the normal definition outside of these fragments."
  (interactive "P")
  (if (org-inside-LaTeX-fragment-p)
      (call-interactively 'cdlatex-sub-superscript)
    (let (org-cdlatex-mode)
      (call-interactively (key-binding (vector last-input-event))))))

(defun org-cdlatex-math-modify (&optional _arg)
  "Execute `cdlatex-math-modify' in LaTeX fragments.
Revert to the normal definition outside of these fragments."
  (interactive "P")
  (if (org-inside-LaTeX-fragment-p)
      (call-interactively 'cdlatex-math-modify)
    (let (org-cdlatex-mode)
      (call-interactively (key-binding (vector last-input-event))))))

(defun org-cdlatex-environment-indent (&optional environment item)
  "Execute `cdlatex-environment' and indent the inserted environment.

ENVIRONMENT and ITEM are passed to `cdlatex-environment'.

The inserted environment is indented to current indentation
unless point is at the beginning of the line, in which the
environment remains unintended."
  (interactive)
  ;; cdlatex-environment always return nil.  Therefore, capture output
  ;; first and determine if an environment was selected.
  (let* ((beg (point-marker))
	 (end (copy-marker (point) t))
	 (inserted (progn
		     (ignore-errors (cdlatex-environment environment item))
		     (< beg end)))
	 ;; Figure out how many lines to move forward after the
	 ;; environment has been inserted.
	 (lines (when inserted
		  (save-excursion
		    (- (cl-loop while (< beg (point))
				with x = 0
				do (forward-line -1)
				(cl-incf x)
				finally return x)
		       (if (progn (goto-char beg)
				  (and (progn (skip-chars-forward " \t") (eolp))
				       (progn (skip-chars-backward " \t") (bolp))))
			   1 0)))))
	 (env (org-trim (delete-and-extract-region beg end))))
    (when inserted
      ;; Get indentation of next line unless at column 0.
      (let ((ind (if (bolp) 0
		   (save-excursion
		     (org-return t)
		     (prog1 (current-indentation)
		       (when (progn (skip-chars-forward " \t") (eolp))
			 (delete-region beg (point)))))))
	    (bol (progn (skip-chars-backward " \t") (bolp))))
	;; Insert a newline before environment unless at column zero
	;; to "escape" the current line.  Insert a newline if
	;; something is one the same line as \end{ENVIRONMENT}.
	(insert
	 (concat (unless bol "\n") env
		 (when (and (skip-chars-forward " \t") (not (eolp))) "\n")))
	(unless (zerop ind)
	  (save-excursion
	    (goto-char beg)
	    (while (< (point) end)
	      (unless (eolp) (indent-line-to ind))
	      (forward-line))))
	(goto-char beg)
	(forward-line lines)
	(indent-line-to ind)))
    (set-marker beg nil)
    (set-marker end nil)))

\f
;;;; LaTeX fragments

(defun org-inside-LaTeX-fragment-p (&optional element)
  "Test if point is inside a LaTeX fragment or environment.

When optional argument ELEMENT is non-nil, it should be element/object
at point."
  (org-element-type-p
   (or element (org-element-context))
   '(latex-fragment latex-environment)))

(defun org-inside-latex-macro-p ()
  "Is point inside a LaTeX macro or its arguments?"
  (save-match-data
    (org-in-regexp
     "\\\\[a-zA-Z]+\\*?\\(\\(\\[[^][\n{}]*\\]\\)\\|\\({[^{}\n]*}\\)\\)*")))

(defun org--make-preview-overlay (beg end image &optional imagetype)
  "Build an overlay between BEG and END using IMAGE file.
Argument IMAGETYPE is the extension of the displayed image,
as a string.  It defaults to \"png\"."
  (let ((ov (make-overlay beg end))
	(imagetype (or (intern imagetype) 'png)))
    (overlay-put ov 'org-overlay-type 'org-latex-overlay)
    (overlay-put ov 'evaporate t)
    (overlay-put ov
		 'modification-hooks
		 (list (lambda (o _flag _beg _end &optional _l)
			 (delete-overlay o))))
    (overlay-put ov
		 'display
		 (list 'image :type imagetype :file image :ascent 'center))))

(defun org-clear-latex-preview (&optional beg end)
  "Remove all overlays with LaTeX fragment images in current buffer.
When optional arguments BEG and END are non-nil, remove all
overlays between them instead.  Return a non-nil value when some
overlays were removed, nil otherwise."
  (let ((overlays
	 (cl-remove-if-not
	  (lambda (o) (eq (overlay-get o 'org-overlay-type) 'org-latex-overlay))
	  (overlays-in (or beg (point-min)) (or end (point-max))))))
    (mapc #'delete-overlay overlays)
    overlays))

(defun org--latex-preview-region (beg end)
  "Preview LaTeX fragments between BEG and END.
BEG and END are buffer positions."
  (let ((file (buffer-file-name (buffer-base-buffer))))
    (save-excursion
      (org-format-latex
       (concat org-preview-latex-image-directory "org-ltximg")
       beg end
       ;; Emacs cannot overlay images from remote hosts.  Create it in
       ;; `temporary-file-directory' instead.
       (if (or (not file) (file-remote-p file))
	   temporary-file-directory
	 default-directory)
       'overlays nil 'forbuffer org-preview-latex-default-process))))

(defun org-latex-preview (&optional arg)
  "Toggle preview of the LaTeX fragment at point.

If the cursor is on a LaTeX fragment, create the image and
overlay it over the source code, if there is none.  Remove it
otherwise.  If there is no fragment at point, display images for
all fragments in the current section.  With an active region,
display images for all fragments in the region.

With a `\\[universal-argument]' prefix argument ARG, clear images \
for all fragments
in the current section.

With a `\\[universal-argument] \\[universal-argument]' prefix \
argument ARG, display image for all
fragments in the buffer.

With a `\\[universal-argument] \\[universal-argument] \
\\[universal-argument]' prefix argument ARG, clear image for all
fragments in the buffer."
  (interactive "P")
  (cond
   ((not (display-graphic-p)) nil)
   ;; Clear whole buffer.
   ((equal arg '(64))
    (org-clear-latex-preview (point-min) (point-max))
    (message "LaTeX previews removed from buffer"))
   ;; Preview whole buffer.
   ((equal arg '(16))
    (message "Creating LaTeX previews in buffer...")
    (org--latex-preview-region (point-min) (point-max))
    (message "Creating LaTeX previews in buffer... done."))
   ;; Clear current section.
   ((equal arg '(4))
    (org-clear-latex-preview
     (if (use-region-p)
         (region-beginning)
       (if (org-before-first-heading-p) (point-min)
         (save-excursion
	   (org-with-limited-levels (org-back-to-heading t) (point)))))
     (if (use-region-p)
         (region-end)
       (org-with-limited-levels (org-entry-end-position)))))
   ((use-region-p)
    (message "Creating LaTeX previews in region...")
    (org--latex-preview-region (region-beginning) (region-end))
    (message "Creating LaTeX previews in region... done."))
   ;; Toggle preview on LaTeX code at point.
   ((let ((datum (org-element-context)))
      (and (org-element-type-p datum '(latex-environment latex-fragment))
	   (let ((beg (org-element-begin datum))
		 (end (org-element-end datum)))
	     (if (org-clear-latex-preview beg end)
		 (message "LaTeX preview removed")
	       (message "Creating LaTeX preview...")
	       (org--latex-preview-region beg end)
	       (message "Creating LaTeX preview... done."))
	     t))))
   ;; Preview current section.
   (t
    (let ((beg (if (org-before-first-heading-p) (point-min)
		 (save-excursion
		   (org-with-limited-levels (org-back-to-heading t) (point)))))
	  (end (org-with-limited-levels (org-entry-end-position))))
      (message "Creating LaTeX previews in section...")
      (org--latex-preview-region beg end)
      (message "Creating LaTeX previews in section... done.")))))

(defun org-format-latex
    (prefix &optional beg end dir overlays msg forbuffer processing-type)
  "Replace LaTeX fragments with links to an image.

The function takes care of creating the replacement image.

Only consider fragments between BEG and END when those are
provided.

When optional argument OVERLAYS is non-nil, display the image on
top of the fragment instead of replacing it.

PROCESSING-TYPE is the conversion method to use, as a symbol.

Some of the options can be changed using the variable
`org-format-latex-options', which see."
  (when (and overlays (fboundp 'clear-image-cache)) (clear-image-cache))
  (unless (eq processing-type 'verbatim)
    (let* ((math-regexp "\\$\\|\\\\[([]\\|^[ \t]*\\\\begin{[A-Za-z0-9*]+}")
	   (cnt 0)
	   checkdir-flag)
      (goto-char (or beg (point-min)))
      ;; FIXME: `overlay-recenter' is not needed (and has no effect)
      ;; since Emacs 29.
      ;; Optimize overlay creation: (info "(elisp) Managing Overlays").
      (when (and overlays (memq processing-type '(dvipng imagemagick)))
	(overlay-recenter (or end (point-max))))
      (while (re-search-forward math-regexp end t)
	(unless (and overlays
		     (eq (get-char-property (point) 'org-overlay-type)
			 'org-latex-overlay))
	  (let* ((context (org-element-context))
		 (type (org-element-type context)))
	    (when (memq type '(latex-environment latex-fragment))
	      (let ((block-type (eq type 'latex-environment))
		    (value (org-element-property :value context))
		    (beg (org-element-begin context))
		    (end (save-excursion
			   (goto-char (org-element-end context))
			   (skip-chars-backward " \r\t\n")
			   (point))))
		(cond
		 ((eq processing-type 'mathjax)
		  ;; Prepare for MathJax processing.
		  (if (not (string-match "\\`\\$\\$?" value))
		      (goto-char end)
		    (delete-region beg end)
		    (if (string= (match-string 0 value) "$$")
			(insert "\\[" (substring value 2 -2) "\\]")
		      (insert "\\(" (substring value 1 -1) "\\)"))))
		 ((eq processing-type 'html)
		  (goto-char beg)
		  (delete-region beg end)
		  (insert (org-format-latex-as-html value)))
		 ((assq processing-type org-preview-latex-process-alist)
		  ;; Process to an image.
		  (cl-incf cnt)
		  (goto-char beg)
		  (let* ((processing-info
			  (cdr (assq processing-type org-preview-latex-process-alist)))
			 (face (face-at-point))
			 ;; Get the colors from the face at point.
			 (fg
			  (let ((color (plist-get org-format-latex-options
						  :foreground)))
                            (if forbuffer
                                (cond
                                 ((eq color 'auto)
                                  (face-attribute face :foreground nil 'default))
                                 ((eq color 'default)
                                  (face-attribute 'default :foreground nil))
                                 (t color))
                              color)))
			 (bg
			  (let ((color (plist-get org-format-latex-options
						  :background)))
                            (if forbuffer
                                (cond
                                 ((eq color 'auto)
                                  (face-attribute face :background nil 'default))
                                 ((eq color 'default)
                                  (face-attribute 'default :background nil))
                                 (t color))
                              color)))
			 (hash (sha1 (prin1-to-string
				      (list org-format-latex-header
					    org-latex-default-packages-alist
					    org-latex-packages-alist
					    org-format-latex-options
					    forbuffer value fg bg))))
			 (imagetype (or (plist-get processing-info :image-output-type) "png"))
			 (absprefix (expand-file-name prefix dir))
			 (linkfile (format "%s_%s.%s" prefix hash imagetype))
			 (movefile (format "%s_%s.%s" absprefix hash imagetype))
			 (sep (and block-type "\n\n"))
			 (link (concat sep "[[file:" linkfile "]]" sep))
			 (options
			  (org-combine-plists
			   org-format-latex-options
			   `(:foreground ,fg :background ,bg))))
		    (when msg (message msg cnt))
		    (unless checkdir-flag ; Ensure the directory exists.
		      (setq checkdir-flag t)
		      (let ((todir (file-name-directory absprefix)))
			(unless (file-directory-p todir)
			  (make-directory todir t))))
		    (unless (file-exists-p movefile)
		      (org-create-formula-image
		       value movefile options forbuffer processing-type))
                    (org-place-formula-image link block-type beg end value overlays movefile imagetype)))
		 ((eq processing-type 'mathml)
		  ;; Process to MathML.
		  (unless (org-format-latex-mathml-available-p)
		    (user-error "LaTeX to MathML converter not configured"))
		  (cl-incf cnt)
		  (when msg (message msg cnt))
		  (goto-char beg)
		  (delete-region beg end)
		  (insert (org-format-latex-as-mathml
			   value block-type prefix dir)))
		 (t
		  (error "Unknown conversion process %s for LaTeX fragments"
			 processing-type)))))))))))

(defun org-place-formula-image (link block-type beg end value overlays movefile imagetype)
  "Place an overlay from BEG to END showing MOVEFILE.
The overlay will be above BEG if OVERLAYS is non-nil."
  (if overlays
      (progn
        (dolist (o (overlays-in beg end))
          (when (eq (overlay-get o 'org-overlay-type)
                    'org-latex-overlay)
            (delete-overlay o)))
        (org--make-preview-overlay beg end movefile imagetype)
        (goto-char end))
    (delete-region beg end)
    (insert
     (org-add-props link
         (list 'org-latex-src
               (replace-regexp-in-string "\"" "" value)
               'org-latex-src-embed-type
               (if block-type 'paragraph 'character))))))

(defun org-create-math-formula (latex-frag &optional mathml-file)
  "Convert LATEX-FRAG to MathML and store it in MATHML-FILE.
Use `org-latex-to-mathml-convert-command'.  If the conversion is
successful, return the portion between \"<math...> </math>\"
elements otherwise return nil.  When MATHML-FILE is specified,
write the results in to that file.  When invoked as an
interactive command, prompt for LATEX-FRAG, with initial value
set to the current active region and echo the results for user
inspection."
  (interactive (list (let ((frag (when (org-region-active-p)
				   (buffer-substring-no-properties
				    (region-beginning) (region-end)))))
		       (read-string "LaTeX Fragment: " frag nil frag))))
  (unless latex-frag (user-error "Invalid LaTeX fragment"))
  (let* ((tmp-in-file
	  (let ((file (file-relative-name
		       (make-temp-name (expand-file-name "ltxmathml-in")))))
	    (write-region latex-frag nil file)
	    file))
	 (tmp-out-file (file-relative-name
			(make-temp-name (expand-file-name  "ltxmathml-out"))))
	 (cmd (format-spec
	       org-latex-to-mathml-convert-command
	       `((?j . ,(and org-latex-to-mathml-jar-file
			     (shell-quote-argument
			      (expand-file-name
			       org-latex-to-mathml-jar-file))))
		 (?I . ,(shell-quote-argument tmp-in-file))
		 (?i . ,latex-frag)
		 (?o . ,(shell-quote-argument tmp-out-file)))))
	 mathml shell-command-output)
    (when (called-interactively-p 'any)
      (unless (org-format-latex-mathml-available-p)
	(user-error "LaTeX to MathML converter not configured")))
    (message "Running %s" cmd)
    (setq shell-command-output (shell-command-to-string cmd))
    (setq mathml
	  (when (file-readable-p tmp-out-file)
	    (with-current-buffer (find-file-noselect tmp-out-file t)
	      (goto-char (point-min))
	      (when (re-search-forward
		     (format "<math[^>]*?%s[^>]*?>\\(.\\|\n\\)*</math>"
			     (regexp-quote
			      "xmlns=\"http://www.w3.org/1998/Math/MathML\""))
		     nil t)
		(prog1 (match-string 0) (kill-buffer))))))
    (cond
     (mathml
      (setq mathml
	    (concat "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" mathml))
      (when mathml-file
	(write-region mathml nil mathml-file))
      (when (called-interactively-p 'any)
	(message mathml)))
     ((warn "LaTeX to MathML conversion failed")
      (message shell-command-output)))
    (delete-file tmp-in-file)
    (when (file-exists-p tmp-out-file)
      (delete-file tmp-out-file))
    mathml))

(defun org-format-latex-as-mathml (latex-frag latex-frag-type
					      prefix &optional dir)
  "Use `org-create-math-formula' but check local cache first."
  (let* ((absprefix (expand-file-name prefix dir))
	 (print-length nil) (print-level nil)
	 (formula-id (concat
		      "formula-"
		      (sha1
		       (prin1-to-string
			(list latex-frag
			      org-latex-to-mathml-convert-command)))))
	 (formula-cache (format "%s-%s.mathml" absprefix formula-id))
	 (formula-cache-dir (file-name-directory formula-cache)))

    (unless (file-directory-p formula-cache-dir)
      (make-directory formula-cache-dir t))

    (unless (file-exists-p formula-cache)
      (org-create-math-formula latex-frag formula-cache))

    (if (file-exists-p formula-cache)
	;; Successful conversion.  Return the link to MathML file.
	(org-add-props
	    (format  "[[file:%s]]" (file-relative-name formula-cache dir))
	    (list 'org-latex-src (replace-regexp-in-string "\"" "" latex-frag)
		  'org-latex-src-embed-type (if latex-frag-type
						'paragraph 'character)))
      ;; Failed conversion.  Return the LaTeX fragment verbatim
      latex-frag)))

(defun org-format-latex-as-html (latex-fragment)
  "Convert LATEX-FRAGMENT to HTML.
This uses  `org-latex-to-html-convert-command', which see."
  (let ((cmd (format-spec org-latex-to-html-convert-command
			  `((?i . ,latex-fragment)))))
    (message "Running %s" cmd)
    (shell-command-to-string cmd)))

(defun org--get-display-dpi ()
  "Get the DPI of the display.
The function assumes that the display has the same pixel width in
the horizontal and vertical directions."
  (if (display-graphic-p)
      (round (/ (display-pixel-height)
		(/ (display-mm-height) 25.4)))
    (error "Attempt to calculate the dpi of a non-graphic display")))

(defun org-create-formula-image
    (string tofile options buffer &optional processing-type)
  "Create an image from LaTeX source using external processes.

The LaTeX STRING is saved to a temporary LaTeX file, then
converted to an image file by process PROCESSING-TYPE defined in
`org-preview-latex-process-alist'.  A nil value defaults to
`org-preview-latex-default-process'.

The generated image file is eventually moved to TOFILE.

The OPTIONS argument controls the size, foreground color and
background color of the generated image.

When BUFFER non-nil, this function is used for LaTeX previewing.
Otherwise, it is used to deal with LaTeX snippets showed in
a HTML file."
  (let* ((processing-type (or processing-type
			      org-preview-latex-default-process))
	 (processing-info
	  (cdr (assq processing-type org-preview-latex-process-alist)))
	 (programs (plist-get processing-info :programs))
	 (error-message (or (plist-get processing-info :message) ""))
	 (image-input-type (plist-get processing-info :image-input-type))
	 (image-output-type (plist-get processing-info :image-output-type))
	 (post-clean (or (plist-get processing-info :post-clean)
			 '(".dvi" ".xdv" ".pdf" ".tex" ".aux" ".log"
			   ".svg" ".png" ".jpg" ".jpeg" ".out")))
	 (latex-header
	  (or (plist-get processing-info :latex-header)
	      (org-latex-make-preamble
	       (org-export-get-environment (org-export-get-backend 'latex))
	       org-format-latex-header
	       'snippet)))
	 (latex-compiler (plist-get processing-info :latex-compiler))
	 (tmpdir temporary-file-directory)
	 (texfilebase (make-temp-name
		       (expand-file-name "orgtex" tmpdir)))
	 (texfile (concat texfilebase ".tex"))
	 (image-size-adjust (or (plist-get processing-info :image-size-adjust)
				'(1.0 . 1.0)))
	 (scale (* (if buffer (car image-size-adjust) (cdr image-size-adjust))
		   (or (plist-get options (if buffer :scale :html-scale)) 1.0)))
	 (dpi (* scale (if (and buffer (display-graphic-p)) (org--get-display-dpi) 140.0)))
	 (fg (or (plist-get options (if buffer :foreground :html-foreground))
		 "Black"))
	 (bg (or (plist-get options (if buffer :background :html-background))
		 "Transparent"))
	 (image-converter
          (or (and (string= bg "Transparent")
                   (plist-get processing-info :transparent-image-converter))
              (plist-get processing-info :image-converter)))
         (log-buf (get-buffer-create "*Org Preview LaTeX Output*"))
	 (resize-mini-windows nil)) ;Fix Emacs flicker when creating image.
    (dolist (program programs)
      (org-check-external-command program error-message))
    (if (eq fg 'default)
	(setq fg (org-latex-color :foreground))
      (setq fg (org-latex-color-format fg)))
    (setq bg (cond
	      ((eq bg 'default) (org-latex-color :background))
	      ((string= bg "Transparent") nil)
	      (t (org-latex-color-format bg))))
    ;; Remove TeX \par at end of snippet to avoid trailing space.
    (if (string-suffix-p string "\n")
        (aset string (1- (length string)) ?%)
      (setq string (concat string "%")))
    (with-temp-file texfile
      (insert latex-header)
      (insert "\n\\begin{document}\n"
	      "\\definecolor{fg}{rgb}{" fg "}%\n"
	      (if bg
		  (concat "\\definecolor{bg}{rgb}{" bg "}%\n"
			  "\n\\pagecolor{bg}%\n")
		"")
	      "\n{\\color{fg}\n"
	      string
	      "\n}\n"
	      "\n\\end{document}\n"))
    (let* ((err-msg (format "Please adjust `%s' part of \
`org-preview-latex-process-alist'."
			    processing-type))
	   (image-input-file
	    (org-compile-file
	     texfile latex-compiler image-input-type err-msg log-buf))
	   (image-output-file
	    (org-compile-file
	     image-input-file image-converter image-output-type err-msg log-buf
	     `((?D . ,(shell-quote-argument (format "%s" dpi)))
	       (?S . ,(shell-quote-argument (format "%s" (/ dpi 140.0))))))))
      (copy-file image-output-file tofile 'replace)
      (dolist (e post-clean)
	(when (file-exists-p (concat texfilebase e))
	  (delete-file (concat texfilebase e))))
      image-output-file)))

(defun org-splice-latex-header (tpl def-pkg pkg snippets-p &optional extra)
  "Fill a LaTeX header template TPL.
In the template, the following place holders will be recognized:

 [DEFAULT-PACKAGES]      \\usepackage statements for DEF-PKG
 [NO-DEFAULT-PACKAGES]   do not include DEF-PKG
 [PACKAGES]              \\usepackage statements for PKG
 [NO-PACKAGES]           do not include PKG
 [EXTRA]                 the string EXTRA
 [NO-EXTRA]              do not include EXTRA

For backward compatibility, if both the positive and the negative place
holder is missing, the positive one (without the \"NO-\") will be
assumed to be present at the end of the template.
DEF-PKG and PKG are assumed to be alists of options/packagename lists.
EXTRA is a string.
SNIPPETS-P indicates if this is run to create snippet images for HTML."
  (let (rpl (end ""))
    (if (string-match "^[ \t]*\\[\\(NO-\\)?DEFAULT-PACKAGES\\][ \t]*\n?" tpl)
	(setq rpl (if (or (match-end 1) (not def-pkg))
		      "" (org-latex-packages-to-string def-pkg snippets-p t))
	      tpl (replace-match rpl t t tpl))
      (when def-pkg (setq end (org-latex-packages-to-string def-pkg snippets-p))))

    (if (string-match "\\[\\(NO-\\)?PACKAGES\\][ \t]*\n?" tpl)
	(setq rpl (if (or (match-end 1) (not pkg))
		      "" (org-latex-packages-to-string pkg snippets-p t))
	      tpl (replace-match rpl t t tpl))
      (when pkg (setq end
		      (concat end "\n"
			      (org-latex-packages-to-string pkg snippets-p)))))

    (if (string-match "\\[\\(NO-\\)?EXTRA\\][ \t]*\n?" tpl)
	(setq rpl (if (or (match-end 1) (not extra))
		      "" (concat extra "\n"))
	      tpl (replace-match rpl t t tpl))
      (when (and extra (string-match "\\S-" extra))
	(setq end (concat end "\n" extra))))

    (if (string-match "\\S-" end)
	(concat tpl "\n" end)
      tpl)))

(defun org-latex-packages-to-string (pkg &optional snippets-p newline)
  "Turn an alist of packages into a string with the \\usepackage macros."
  (setq pkg (mapconcat (lambda(p)
			 (cond
			  ((stringp p) p)
			  ((and snippets-p (>= (length p) 3) (not (nth 2 p)))
			   (format "%% Package %s omitted" (cadr p)))
			  ((equal "" (car p))
			   (format "\\usepackage{%s}" (cadr p)))
			  (t
			   (format "\\usepackage[%s]{%s}"
				   (car p) (cadr p)))))
		       pkg
		       "\n"))
  (if newline (concat pkg "\n") pkg))

(defun org-dvipng-color (attr)
  "Return a RGB color specification for dvipng."
  (org-dvipng-color-format (face-attribute 'default attr nil)))

(defun org-dvipng-color-format (color-name)
  "Convert COLOR-NAME to a RGB color value for dvipng."
  (apply #'format "rgb %s %s %s"
	 (mapcar 'org-normalize-color
		 (color-values color-name))))

(defun org-latex-color (attr)
  "Return a RGB color for the LaTeX color package."
  (org-latex-color-format (face-attribute 'default attr nil)))

(defun org-latex-color-format (color-name)
  "Convert COLOR-NAME to a RGB color value."
  (apply #'format "%s,%s,%s"
	 (mapcar 'org-normalize-color
		 (color-values color-name))))

(defun org-normalize-color (value)
  "Return string to be used as color value for an RGB component."
  (format "%g" (/ value 65535.0)))

\f
;; Image display

(defvar-local org-inline-image-overlays nil)
;; Preserve when switching modes or when restarting Org.
;; If we clear the overlay list and later enable Or mode, the existing
;; image overlays will never be cleared by `org-toggle-inline-images'.
(put 'org-inline-image-overlays 'permanent-local t)

(defun org--inline-image-overlays (&optional beg end)
  "Return image overlays between BEG and END."
  (let* ((beg (or beg (point-min)))
         (end (or end (point-max)))
         (overlays (overlays-in beg end))
         result)
    (dolist (ov overlays result)
      (when (memq ov org-inline-image-overlays)
        (push ov result)))))

(defun org-toggle-inline-images (&optional include-linked beg end)
  "Toggle the display of inline images.
INCLUDE-LINKED is passed to `org-display-inline-images'."
  (interactive "P")
  (if (org--inline-image-overlays beg end)
      (progn
        (org-remove-inline-images beg end)
        (when (called-interactively-p 'interactive)
	  (message "Inline image display turned off")))
    (org-display-inline-images include-linked nil beg end)
    (when (called-interactively-p 'interactive)
      (let ((new (org--inline-image-overlays beg end)))
        (message (if new
		     (format "%d images displayed inline"
			     (length new))
		   "No images to display inline"))))))

(defun org-redisplay-inline-images ()
  "Assure display of inline images and refresh them."
  (interactive)
  (org-toggle-inline-images)
  (unless org-inline-image-overlays
    (org-toggle-inline-images)))

;; For without-x builds.
(declare-function image-flush "image" (spec &optional frame))

(defcustom org-display-remote-inline-images 'skip
  "How to display remote inline images.
Possible values of this option are:

skip        Don't display remote images.
download    Always download and display remote images.
t
cache       Display remote images, and open them in separate buffers
            for caching.  Silently update the image buffer when a file
            change is detected."
  :group 'org-appearance
  :package-version '(Org . "9.4")
  :type '(choice
	  (const :tag "Ignore remote images" skip)
	  (const :tag "Always display remote images" download)
	  (const :tag "Display and silently update remote images" cache))
  :safe #'symbolp)

(defcustom org-image-align 'left
  "How to align images previewed using `org-display-inline-images'.

Only stand-alone image links are affected by this setting.  These
are links without surrounding text.

Possible values of this option are:

left     Insert image at specified position.
center   Center image previews.
right    Right-align image previews."
  :group 'org-appearance
  :package-version '(Org . "9.7")
  :type '(choice
          (const :tag "Left align (or don\\='t align) image previews" left)
	  (const :tag "Center image previews" center)
	  (const :tag "Right align image previews" right))
  :safe #'symbolp)

(defun org--create-inline-image (file width)
  "Create image located at FILE, or return nil.
WIDTH is the width of the image.  The image may not be created
according to the value of `org-display-remote-inline-images'."
  (let* ((remote? (file-remote-p file))
	 (file-or-data
	  (pcase org-display-remote-inline-images
	    ((guard (not remote?)) file)
	    (`download (with-temp-buffer
			 (set-buffer-multibyte nil)
			 (insert-file-contents-literally file)
			 (buffer-string)))
	    ((or `cache `t)
             (let ((revert-without-query '(".")))
	       (with-current-buffer (find-file-noselect file)
		 (buffer-string))))
	    (`skip nil)
	    (other
	     (message "Invalid value of `org-display-remote-inline-images': %S"
		      other)
	     nil))))
    (when file-or-data
      (create-image file-or-data
		    (and (image-type-available-p 'imagemagick)
			 width
			 'imagemagick)
		    remote?
		    :width width
                    :max-width
                    (pcase org-image-max-width
                      (`fill-column (* fill-column (frame-char-width (selected-frame))))
                      (`window (window-width nil t))
                      ((pred integerp) org-image-max-width)
                      ((pred floatp) (floor (* org-image-max-width (window-width nil t))))
                      (`nil nil)
                      (_ (error "Unsupported value of `org-image-max-width': %S"
                                org-image-max-width)))
                    :scale 1))))

(defun org-display-inline-images (&optional include-linked refresh beg end)
  "Display inline images.

An inline image is a link which follows either of these
conventions:

  1. Its path is a file with an extension matching return value
     from `image-file-name-regexp' and it has no contents.

  2. Its description consists in a single link of the previous
     type.  In this case, that link must be a well-formed plain
     or angle link, i.e., it must have an explicit \"file\" or
     \"attachment\" type.

Equip each image with the key-map `image-map'.

When optional argument INCLUDE-LINKED is non-nil, also links with
a text description part will be inlined.  This can be nice for
a quick look at those images, but it does not reflect what
exported files will look like.

When optional argument REFRESH is non-nil, refresh existing
images between BEG and END.  This will create new image displays
only if necessary.

BEG and END define the considered part.  They default to the
buffer boundaries with possible narrowing."
  (interactive "P")
  (when (display-graphic-p)
    (when refresh
      (org-remove-inline-images beg end)
      (when (fboundp 'clear-image-cache) (clear-image-cache)))
    (let ((end (or end (point-max))))
      (org-with-point-at (or beg (point-min))
	(let* ((case-fold-search t)
	       (file-extension-re (image-file-name-regexp))
	       (link-abbrevs (mapcar #'car
				     (append org-link-abbrev-alist-local
					     org-link-abbrev-alist)))
	       ;; Check absolute, relative file names and explicit
	       ;; "file:" links.  Also check link abbreviations since
	       ;; some might expand to "file" links.
	       (file-types-re
		(format "\\[\\[\\(?:file%s:\\|attachment:\\|[./~]\\)\\|\\]\\[\\(<?\\(?:file\\|attachment\\):\\)"
			(if (not link-abbrevs) ""
			  (concat "\\|" (regexp-opt link-abbrevs))))))
	  (while (re-search-forward file-types-re end t)
	    (let* ((link (org-element-lineage
			  (save-match-data (org-element-context))
			  'link t))
                   (linktype (org-element-property :type link))
		   (inner-start (match-beginning 1))
		   (path
		    (cond
		     ;; No link at point; no inline image.
		     ((not link) nil)
		     ;; File link without a description.  Also handle
		     ;; INCLUDE-LINKED here since it should have
		     ;; precedence over the next case.  I.e., if link
		     ;; contains filenames in both the path and the
		     ;; description, prioritize the path only when
		     ;; INCLUDE-LINKED is non-nil.
		     ((or (not (org-element-contents-begin link))
			  include-linked)
		      (and (or (equal "file" linktype)
                               (equal "attachment" linktype))
			   (org-element-property :path link)))
		     ;; Link with a description.  Check if description
		     ;; is a filename.  Even if Org doesn't have syntax
		     ;; for those -- clickable image -- constructs, fake
		     ;; them, as in `org-export-insert-image-links'.
		     ((not inner-start) nil)
		     (t
		      (org-with-point-at inner-start
			(and (looking-at
			      (if (char-equal ?< (char-after inner-start))
				  org-link-angle-re
				org-link-plain-re))
			     ;; File name must fill the whole
			     ;; description.
			     (= (org-element-contents-end link)
				(match-end 0))
			     (progn
                               (setq linktype (match-string 1))
                               (match-string 2))))))))
	      (when (and path (string-match-p file-extension-re path))
		(let ((file (if (equal "attachment" linktype)
				(progn
                                  (require 'org-attach)
				  (ignore-errors (org-attach-expand path)))
                              (expand-file-name path))))
                  ;; Expand environment variables.
                  (when file (setq file (substitute-in-file-name file)))
		  (when (and file (file-exists-p file))
		    (let ((width (org-display-inline-image--width link))
			  (align (org-image--align link))
                          (old (get-char-property-and-overlay
				(org-element-begin link)
				'org-image-overlay)))
		      (if (and (car-safe old) refresh)
                          (image-flush (overlay-get (cdr old) 'display))
			(let ((image (org--create-inline-image file width)))
			  (when image
			    (let ((ov (make-overlay
				       (org-element-begin link)
				       (progn
					 (goto-char
					  (org-element-end link))
					 (unless (eolp) (skip-chars-backward " \t"))
					 (point)))))
                              ;; FIXME: See bug#59902.  We cannot rely
                              ;; on Emacs to update image if the file
                              ;; has changed.
                              (image-flush image)
			      (overlay-put ov 'display image)
			      (overlay-put ov 'face 'default)
			      (overlay-put ov 'org-image-overlay t)
			      (overlay-put
			       ov 'modification-hooks
			       (list 'org-display-inline-remove-overlay))
			      (when (boundp 'image-map)
				(overlay-put ov 'keymap image-map))
                              (when align
                                (overlay-put
                                 ov 'before-string
                                 (propertize
                                  " " 'face 'default
                                  'display
                                  (pcase align
                                    ("center" `(space :align-to (- center (0.5 . ,image))))
                                    ("right"  `(space :align-to (- right ,image)))))))
			      (push ov org-inline-image-overlays))))))))))))))))

(defvar visual-fill-column-width) ; Silence compiler warning
(defun org-display-inline-image--width (link)
  "Determine the display width of the image LINK, in pixels.
- When `org-image-actual-width' is t, the image's pixel width is used.
- When `org-image-actual-width' is a number, that value will is used.
- When `org-image-actual-width' is nil or a list, the first :width attribute
  set (if it exists) is used to set the image width.  A width of X% is
  divided by 100.
  If no :width attribute is given and `org-image-actual-width' is a list with
  a number as the car, then that number is used as the default value.
  If the value is a float between 0 and 2, it interpreted as that proportion
  of the text width in the buffer."
  ;; Apply `org-image-actual-width' specifications.
  ;; Support subtree-level property "ORG-IMAGE-ACTUAL-WIDTH" specified
  ;; width.
  (let ((org-image-actual-width (org-property-or-variable-value 'org-image-actual-width)))
    (cond
     ((eq org-image-actual-width t) nil)
     ((listp org-image-actual-width)
      (let* ((case-fold-search t)
             (par (org-element-lineage link 'paragraph))
             (attr-re "^[ \t]*#\\+attr_.*?: +.*?:width +\\(\\S-+\\)")
             (par-end (org-element-post-affiliated par))
             ;; Try to find an attribute providing a :width.
             (attr-width
              (when (and par (org-with-point-at
                                 (org-element-begin par)
                               (re-search-forward attr-re par-end t)))
                (match-string 1)))
             (width
              (cond
               ;; Treat :width t as if `org-image-actual-width' were t.
               ((string= attr-width "t") nil)
               ;; Fallback to `org-image-actual-width' if no interprable width is given.
               ((or (null attr-width)
                    (string-match-p "\\`[^0-9]" attr-width))
                (car org-image-actual-width))
               ;; Convert numeric widths to numbers, converting percentages.
               ((string-match-p "\\`[0-9.]+%" attr-width)
                (/ (string-to-number attr-width) 100.0))
               (t (string-to-number attr-width)))))
        (if (and (floatp width) (<= 0.0 width 2.0))
            ;; A float in [0,2] should be interpereted as this portion of
            ;; the text width in the window.  This works well with cases like
            ;; #+attr_latex: :width 0.X\{line,page,column,etc.}width,
            ;; as the "0.X" is pulled out as a float.  We use 2 as the upper
            ;; bound as cases such as 1.2\linewidth are feasible.
            (round (* width
                      (window-pixel-width)
                      (/ (or (and (bound-and-true-p visual-fill-column-mode)
                                  (or visual-fill-column-width auto-fill-function))
                             (when auto-fill-function fill-column)
                             (- (window-text-width) (line-number-display-width)))
                         (float (window-total-width)))))
          width)))
     ((numberp org-image-actual-width)
      org-image-actual-width)
     (t nil))))

(defun org-image--align (link)
  "Determine the alignment of the image link.

In decreasing order of priority, this is controlled:
- Per image by the value of `:center' or ``:align' in the
affiliated keyword `#+attr_org'.
- By the `#+attr_html' or `#+attr_latex` keywords with valid
  `:center' or `:align' values.
- Globally by the user option `org-image-align'.

The result is either nil or one of the strings \"left\",
\"center\" or \"right\".

\"center\" will cause the image preview to be centered, \"right\"
will cause it to be right-aligned.  A value of \"left\" or nil
implies no special alignment."
  (let ((par (org-element-lineage link 'paragraph)))
    ;; Only align when image is not surrounded by paragraph text:
    (when (and (= (org-element-begin link)
                  (save-excursion
                    (goto-char (org-element-contents-begin par))
                    (skip-chars-forward "\t ")
                    (point)))           ;account for leading space
                                        ;before link
               (<= (- (org-element-contents-end par)
                      (org-element-end link))
                   1))                  ;account for trailing newline
                                        ;at end of paragraph
      (save-match-data
        ;; Look for a valid ":center t" or ":align left|center|right"
        ;; attribute.
        ;;
        ;; An attr_org keyword has the highest priority, with
        ;; any attr.* next.  Choosing between these is
        ;; unspecified.
        (let ((center-re ":\\(center\\)[[:space:]]+t\\b")
              (align-re ":align[[:space:]]+\\(left\\|center\\|right\\)\\b")
              attr-align)
          (catch 'exit
            (org-element-properties-mapc
             (lambda (propname propval)
               (when (and propval
                          (string-match-p ":attr.*" (symbol-name propname)))
                 (setq propval (car-safe propval))
                 (when (or (string-match center-re propval)
                           (string-match align-re propval))
                   (setq attr-align (match-string 1 propval))
                   (when (eq propname :attr_org)
                     (throw 'exit t)))))
             par))
          (if attr-align
              (when (member attr-align '("center" "right")) attr-align)
            ;; No image-specific keyword, check global alignment property
            (when (memq org-image-align '(center right))
              (symbol-name org-image-align))))))))


(defun org-display-inline-remove-overlay (ov after _beg _end &optional _len)
  "Remove inline-display overlay if a corresponding region is modified."
  (when (and ov after)
    (delete ov org-inline-image-overlays)
    ;; Clear image from cache to avoid image not updating upon
    ;; changing on disk.  See Emacs bug#59902.
    (when (overlay-get ov 'org-image-overlay)
      (image-flush (overlay-get ov 'display)))
    (delete-overlay ov)))

(defun org-remove-inline-images (&optional beg end)
  "Remove inline display of images."
  (interactive)
  (let* ((beg (or beg (point-min)))
         (end (or end (point-max)))
         (overlays (overlays-in beg end)))
    (dolist (ov overlays)
      (when (memq ov org-inline-image-overlays)
        (setq org-inline-image-overlays (delq ov org-inline-image-overlays))
        (delete-overlay ov)))
    ;; Clear removed overlays.
    (dolist (ov org-inline-image-overlays)
      (unless (overlay-buffer ov)
        (setq org-inline-image-overlays (delq ov org-inline-image-overlays))))))

(defvar org-self-insert-command-undo-counter 0)
(defvar org-speed-command nil)

(defun org-fix-tags-on-the-fly ()
  "Align tags in headline at point.
Unlike `org-align-tags', this function does nothing if point is
either not currently on a tagged headline or on a tag."
  (when (and (org-match-line org-tag-line-re)
	     (< (point) (match-beginning 1)))
    (org-align-tags)))

(defun org-self-insert-command (N)
  "Like `self-insert-command', use overwrite-mode for whitespace in tables.
If the cursor is in a table looking at whitespace, the whitespace is
overwritten, and the table is not marked as requiring realignment."
  (interactive "p")
  (cond
   ((and org-use-speed-commands
	 (let ((kv (this-command-keys-vector)))
	   (setq org-speed-command
		 (run-hook-with-args-until-success
		  'org-speed-command-hook
		  (make-string 1 (aref kv (1- (length kv))))))))
    (cond
     ((commandp org-speed-command)
      (setq this-command org-speed-command)
      (call-interactively org-speed-command))
     ((functionp org-speed-command)
      (funcall org-speed-command))
     ((consp org-speed-command)
      (eval org-speed-command t))
     (t (let (org-use-speed-commands)
	  (call-interactively 'org-self-insert-command)))))
   ((and
     (= N 1)
     (not (org-region-active-p))
     (org-at-table-p)
     (progn
       ;; Check if we blank the field, and if that triggers align.
       (and (featurep 'org-table)
	    org-table-auto-blank-field
	    (memq last-command
		  '(org-cycle org-return org-shifttab org-ctrl-c-ctrl-c))
	    (if (or (eq (char-after) ?\s) (looking-at "[^|\n]*  |"))
		;; Got extra space, this field does not determine
		;; column width.
		(let (org-table-may-need-update) (org-table-blank-field))
	      ;; No extra space, this field may determine column
	      ;; width.
	      (org-table-blank-field)))
       t)
     (looking-at "[^|\n]*  |"))
    ;; There is room for insertion without re-aligning the table.
    ;; Interactively, point should never be inside invisible regions
    (org-fold-core-suppress-folding-fix
      (self-insert-command N))
    (org-table-with-shrunk-field
     (save-excursion
       (skip-chars-forward "^|")
       ;; Do not delete last space, which is
       ;; `org-table-separator-space', but the regular space before
       ;; it.
       (delete-region (- (point) 2) (1- (point))))))
   (t
    (setq org-table-may-need-update t)
    ;; Interactively, point should never be inside invisible regions
    (org-fold-core-suppress-folding-fix
      (self-insert-command N)
      (org-fix-tags-on-the-fly))
    (when org-self-insert-cluster-for-undo
      (if (not (eq last-command 'org-self-insert-command))
	  (setq org-self-insert-command-undo-counter 1)
	(if (>= org-self-insert-command-undo-counter 20)
	    (setq org-self-insert-command-undo-counter 1)
	  (and (> org-self-insert-command-undo-counter 0)
	       buffer-undo-list (listp buffer-undo-list)
	       (not (cadr buffer-undo-list)) ; remove nil entry
	       (setcdr buffer-undo-list (cddr buffer-undo-list)))
	  (setq org-self-insert-command-undo-counter
		(1+ org-self-insert-command-undo-counter))))))))

(defun org-delete-backward-char (N)
  "Like `delete-backward-char', insert whitespace at field end in tables.
When deleting backwards, in tables this function will insert whitespace in
front of the next \"|\" separator, to keep the table aligned.  The table will
still be marked for re-alignment if the field did fill the entire column,
because, in this case the deletion might narrow the column."
  (interactive "p")
  (save-match-data
    (if (and (= N 1)
	     (not overwrite-mode)
	     (not (org-region-active-p))
	     (not (eq (char-before) ?|))
	     (save-excursion (skip-chars-backward " \t") (not (bolp)))
	     (looking-at-p ".*?|")
	     (org-at-table-p))
	(progn (forward-char -1) (org-delete-char 1))
      (funcall-interactively #'backward-delete-char N)
      (org-fix-tags-on-the-fly))))

(defun org-delete-char (N)
  "Like `delete-char', but insert whitespace at field end in tables.
When deleting characters, in tables this function will insert whitespace in
front of the next \"|\" separator, to keep the table aligned.  The table will
still be marked for re-alignment if the field did fill the entire column,
because, in this case the deletion might narrow the column."
  (interactive "p")
  (save-match-data
    (cond
     ((or (/= N 1)
	  (eq (char-after) ?|)
	  (save-excursion (skip-chars-backward " \t") (bolp))
	  (not (org-at-table-p)))
      (delete-char N)
      (org-fix-tags-on-the-fly))
     ((looking-at ".\\(.*?\\)|")
      (let* ((update? org-table-may-need-update)
	     (noalign (looking-at-p ".*?  |")))
	(delete-char 1)
	(org-table-with-shrunk-field
	 (save-excursion
	   ;; Last space is `org-table-separator-space', so insert
	   ;; a regular one before it instead.
	   (goto-char (- (match-end 0) 2))
	   (insert " ")))
	;; If there were two spaces at the end, this field does not
	;; determine the width of the column.
	(when noalign (setq org-table-may-need-update update?))))
     (t
      (delete-char N)))))

;; Make `delete-selection-mode' work with Org mode and Orgtbl mode
(put 'org-self-insert-command 'delete-selection
     (lambda ()
       (not (run-hook-with-args-until-success
             'self-insert-uses-region-functions))))
(put 'orgtbl-self-insert-command 'delete-selection
     (lambda ()
       (not (run-hook-with-args-until-success
             'self-insert-uses-region-functions))))
(put 'org-delete-char 'delete-selection 'supersede)
(put 'org-delete-backward-char 'delete-selection 'supersede)
(put 'org-yank 'delete-selection 'yank)
(put 'org-return 'delete-selection t)

;; Make `flyspell-mode' delay after some commands
(put 'org-self-insert-command 'flyspell-delayed t)
(put 'orgtbl-self-insert-command 'flyspell-delayed t)
(put 'org-delete-char 'flyspell-delayed t)
(put 'org-delete-backward-char 'flyspell-delayed t)

;; Make pabbrev-mode expand after Org mode commands
(put 'org-self-insert-command 'pabbrev-expand-after-command t)
(put 'orgtbl-self-insert-command 'pabbrev-expand-after-command t)

(defun org-transpose-words ()
  "Transpose words for Org.
This uses the `org-mode-transpose-word-syntax-table' syntax
table, which interprets characters in `org-emphasis-alist' as
word constituents."
  (interactive)
  (with-syntax-table org-mode-transpose-word-syntax-table
    (call-interactively 'transpose-words)))

(defvar org-ctrl-c-ctrl-c-hook nil
  "Hook for functions attaching themselves to `C-c C-c'.

This can be used to add additional functionality to the `C-c C-c'
key which executes context-dependent commands.  This hook is run
before any other test, while `org-ctrl-c-ctrl-c-final-hook' is
run after the last test.

Each function will be called with no arguments.  The function
must check if the context is appropriate for it to act.  If yes,
it should do its thing and then return a non-nil value.  If the
context is wrong, just do nothing and return nil.")

(defvar org-ctrl-c-ctrl-c-final-hook nil
  "Hook for functions attaching themselves to `C-c C-c'.

This can be used to add additional functionality to the `C-c C-c'
key which executes context-dependent commands.  This hook is run
after any other test, while `org-ctrl-c-ctrl-c-hook' is run
before the first test.

Each function will be called with no arguments.  The function
must check if the context is appropriate for it to act.  If yes,
it should do its thing and then return a non-nil value.  If the
context is wrong, just do nothing and return nil.")

(defvar org-tab-after-check-for-table-hook nil
  "Hook for functions to attach themselves to TAB.
See `org-ctrl-c-ctrl-c-hook' for more information.
This hook runs after it has been established that the cursor is not in a
table, but before checking if the cursor is in a headline or if global cycling
should be done.
If any function in this hook returns t, not other actions like visibility
cycling will be done.")

(defvar org-tab-after-check-for-cycling-hook nil
  "Hook for functions to attach themselves to TAB.
See `org-ctrl-c-ctrl-c-hook' for more information.
This hook runs after it has been established that not table field motion and
not visibility should be done because of current context.  This is probably
the place where a package like yasnippets can hook in.")

(defvar org-tab-before-tab-emulation-hook nil
  "Hook for functions to attach themselves to TAB.
See `org-ctrl-c-ctrl-c-hook' for more information.
This hook runs after every other options for TAB have been exhausted, but
before indentation and \t insertion takes place.")

(defvar org-metaleft-hook nil
  "Hook for functions attaching themselves to `M-left'.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-metaleft-final-hook nil
  "Hook for functions attaching themselves to `M-left'.
This one runs after all options have been excluded.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-metaright-hook nil
  "Hook for functions attaching themselves to `M-right'.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-metaright-final-hook nil
  "Hook for functions attaching themselves to `M-right'.
This one runs after all options have been excluded.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-metaup-hook nil
  "Hook for functions attaching themselves to `M-up'.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-metaup-final-hook nil
  "Hook for functions attaching themselves to `M-up'.
This one runs after all other options except
`org-drag-element-backward' have been excluded.  See
`org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-metadown-hook nil
  "Hook for functions attaching themselves to `M-down'.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-metadown-final-hook nil
  "Hook for functions attaching themselves to `M-down'.
This one runs after all other options except
`org-drag-element-forward' have been excluded.  See
`org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftmetaleft-hook nil
  "Hook for functions attaching themselves to `M-S-left'.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftmetaleft-final-hook nil
  "Hook for functions attaching themselves to `M-S-left'.
This one runs after all other options have been excluded.  See
`org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftmetaright-hook nil
  "Hook for functions attaching themselves to `M-S-right'.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftmetaright-final-hook nil
  "Hook for functions attaching themselves to `M-S-right'.
This one runs after all other options have been excluded.  See
`org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftmetaup-hook nil
  "Hook for functions attaching themselves to `M-S-up'.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftmetaup-final-hook nil
  "Hook for functions attaching themselves to `M-S-up'.
This one runs after all other options except
`org-drag-line-backward' have been excluded.  See
`org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftmetadown-hook nil
  "Hook for functions attaching themselves to `M-S-down'.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftmetadown-final-hook nil
  "Hook for functions attaching themselves to `M-S-down'.
This one runs after all other options except
`org-drag-line-forward' have been excluded.  See
`org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-metareturn-hook nil
  "Hook for functions attaching themselves to `M-RET'.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftup-hook nil
  "Hook for functions attaching themselves to `S-up'.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftup-final-hook nil
  "Hook for functions attaching themselves to `S-up'.
This one runs after all other options except shift-select have been excluded.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftdown-hook nil
  "Hook for functions attaching themselves to `S-down'.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftdown-final-hook nil
  "Hook for functions attaching themselves to `S-down'.
This one runs after all other options except shift-select have been excluded.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftleft-hook nil
  "Hook for functions attaching themselves to `S-left'.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftleft-final-hook nil
  "Hook for functions attaching themselves to `S-left'.
This one runs after all other options except shift-select have been excluded.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftright-hook nil
  "Hook for functions attaching themselves to `S-right'.
See `org-ctrl-c-ctrl-c-hook' for more information.")
(defvar org-shiftright-final-hook nil
  "Hook for functions attaching themselves to `S-right'.
This one runs after all other options except shift-select have been excluded.
See `org-ctrl-c-ctrl-c-hook' for more information.")

(defun org-modifier-cursor-error ()
  "Throw an error, a modified cursor command was applied in wrong context."
  (user-error "This command is active in special context like tables, headlines or items"))

(defun org-shiftselect-error ()
  "Throw an error because Shift-Cursor command was applied in wrong context."
  (if (and (boundp 'shift-select-mode) shift-select-mode)
      (user-error "To use shift-selection with Org mode, customize `org-support-shift-select'")
    (user-error "This command works only in special context like headlines or timestamps")))

(defun org-call-for-shift-select (cmd)
  (let ((this-command-keys-shift-translated t))
    (call-interactively cmd)))

(defun org-shifttab (&optional arg)
  "Global visibility cycling or move to previous table field.
Call `org-table-previous-field' within a table.
When ARG is nil, cycle globally through visibility states.
When ARG is a numeric prefix, show contents of this level."
  (interactive "P")
  (cond
   ((org-at-table-p) (call-interactively 'org-table-previous-field))
   ((integerp arg)
    (let ((arg2 (if org-odd-levels-only (1- (* 2 arg)) arg)))
      (message "Content view to level: %d" arg)
      (org-cycle-content (prefix-numeric-value arg2))
      (org-cycle-show-empty-lines t)
      (setq org-cycle-global-status 'overview)
      (run-hook-with-args 'org-cycle-hook 'overview)))
   (t (call-interactively 'org-cycle-global))))

(defun org-shiftmetaleft ()
  "Promote subtree or delete table column.
Calls `org-promote-subtree', `org-outdent-item-tree', or
`org-table-delete-column', depending on context.  See the
individual commands for more information.

This function runs the functions in `org-shiftmetaleft-hook' one
by one as a first step, and exits immediately if a function from
the hook returns non-nil.  In the absence of a specific context,
the function also runs `org-shiftmetaleft-final-hook' using the
same logic."
  (interactive)
  (cond
   ((and (eq system-type 'darwin)
         (or (eq org-support-shift-select 'always)
             (and org-support-shift-select (org-region-active-p))))
    (org-call-for-shift-select 'backward-char))
   ((run-hook-with-args-until-success 'org-shiftmetaleft-hook))
   ((org-at-table-p) (call-interactively 'org-table-delete-column))
   ((org-at-heading-p) (call-interactively 'org-promote-subtree))
   ((if (not (org-region-active-p)) (org-at-item-p)
      (save-excursion (goto-char (region-beginning))
		      (org-at-item-p)))
    (call-interactively 'org-outdent-item-tree))
   ((run-hook-with-args-until-success 'org-shiftmetaleft-final-hook))
   (t (org-modifier-cursor-error))))

(defun org-shiftmetaright ()
  "Demote subtree or insert table column.
Calls `org-demote-subtree', `org-indent-item-tree', or
`org-table-insert-column', depending on context.  See the
individual commands for more information.

This function runs the functions in `org-shiftmetaright-hook' one
by one as a first step, and exits immediately if a function from
the hook returns non-nil.  In the absence of a specific context,
the function also runs `org-shiftmetaright-final-hook' using the
same logic."
  (interactive)
  (cond
   ((and (eq system-type 'darwin)
         (or (eq org-support-shift-select 'always)
             (and org-support-shift-select (org-region-active-p))))
    (org-call-for-shift-select 'forward-char))
   ((run-hook-with-args-until-success 'org-shiftmetaright-hook))
   ((org-at-table-p) (call-interactively 'org-table-insert-column))
   ((org-at-heading-p) (call-interactively 'org-demote-subtree))
   ((if (not (org-region-active-p)) (org-at-item-p)
      (save-excursion (goto-char (region-beginning))
		      (org-at-item-p)))
    (call-interactively 'org-indent-item-tree))
   ((run-hook-with-args-until-success 'org-shiftmetaright-final-hook))
   (t (org-modifier-cursor-error))))

(defun org-shiftmetaup (&optional _arg)
  "Drag the line at point up.
In a table, kill the current row.
On a clock timestamp, update the value of the timestamp like `S-<up>'
but also adjust the previous clocked item in the clock history.
Everywhere else, drag the line at point up.

This function runs the functions in `org-shiftmetaup-hook' one by
one as a first step, and exits immediately if a function from the
hook returns non-nil.  In the absence of a specific context, the
function also runs `org-shiftmetaup-final-hook' using the same
logic."
  (interactive "P")
  (cond
   ((run-hook-with-args-until-success 'org-shiftmetaup-hook))
   ((org-at-table-p) (call-interactively 'org-table-kill-row))
   ((org-at-clock-log-p) (let ((org-clock-adjust-closest t))
			   (call-interactively 'org-timestamp-up)))
   ((run-hook-with-args-until-success 'org-shiftmetaup-final-hook))
   (t (call-interactively 'org-drag-line-backward))))

(defun org-shiftmetadown (&optional _arg)
  "Drag the line at point down.
In a table, insert an empty row at the current line.
On a clock timestamp, update the value of the timestamp like `S-<down>'
but also adjust the previous clocked item in the clock history.
Everywhere else, drag the line at point down.

This function runs the functions in `org-shiftmetadown-hook' one
by one as a first step, and exits immediately if a function from
the hook returns non-nil.  In the absence of a specific context,
the function also runs `org-shiftmetadown-final-hook' using the
same logic."
  (interactive "P")
  (cond
   ((run-hook-with-args-until-success 'org-shiftmetadown-hook))
   ((org-at-table-p) (call-interactively 'org-table-insert-row))
   ((org-at-clock-log-p) (let ((org-clock-adjust-closest t))
			   (call-interactively 'org-timestamp-down)))
   ((run-hook-with-args-until-success 'org-shiftmetadown-final-hook))
   (t (call-interactively 'org-drag-line-forward))))

(defsubst org-hidden-tree-error ()
  (user-error
   "Hidden subtree, open with TAB or use subtree command M-S-<left>/<right>"))

(defun org-metaleft (&optional _arg)
  "Promote heading, list item at point or move table column left.

Calls `org-do-promote', `org-outdent-item' or `org-table-move-column',
depending on context.  With no specific context, calls the Emacs
default `backward-word'.  See the individual commands for more
information.

This function runs the functions in `org-metaleft-hook' one by
one as a first step, and exits immediately if a function from the
hook returns non-nil.  In the absence of a specific context, the
function runs `org-metaleft-final-hook' using the same logic."
  (interactive "P")
  (cond
   ((run-hook-with-args-until-success 'org-metaleft-hook))
   ((org-at-table-p) (org-call-with-arg 'org-table-move-column 'left))
   ((org-with-limited-levels
     (or (org-at-heading-p)
	 (and (org-region-active-p)
	      (save-excursion
		(goto-char (region-beginning))
		(org-at-heading-p)))))
    (when (org-check-for-hidden 'headlines) (org-hidden-tree-error))
    (call-interactively 'org-do-promote))
   ;; At an inline task.
   ((org-at-heading-p)
    (call-interactively 'org-inlinetask-promote))
   ((or (org-at-item-p)
	(and (org-region-active-p)
	     (save-excursion
	       (goto-char (region-beginning))
	       (org-at-item-p))))
    (when (org-check-for-hidden 'items) (org-hidden-tree-error))
    (call-interactively 'org-outdent-item))
   ((run-hook-with-args-until-success 'org-metaleft-final-hook))
   (t (call-interactively 'backward-word))))

(defun org-metaright (&optional _arg)
  "Demote heading, list item at point or move table column right.

In front of a drawer or a block keyword, indent it correctly.

Calls `org-do-demote', `org-indent-item', `org-table-move-column',
`org-indent-drawer' or `org-indent-block' depending on context.
With no specific context, calls the Emacs default `forward-word'.
See the individual commands for more information.

This function runs the functions in `org-metaright-hook' one by
one as a first step, and exits immediately if a function from the
hook returns non-nil.  In the absence of a specific context, the
function runs `org-metaright-final-hook' using the same logic."
  (interactive "P")
  (cond
   ((run-hook-with-args-until-success 'org-metaright-hook))
   ((org-at-table-p) (call-interactively 'org-table-move-column))
   ((org-at-drawer-p) (call-interactively 'org-indent-drawer))
   ((org-at-block-p) (call-interactively 'org-indent-block))
   ((org-with-limited-levels
     (or (org-at-heading-p)
	 (and (org-region-active-p)
	      (save-excursion
		(goto-char (region-beginning))
		(org-at-heading-p)))))
    (when (org-check-for-hidden 'headlines) (org-hidden-tree-error))
    (call-interactively 'org-do-demote))
   ;; At an inline task.
   ((org-at-heading-p)
    (call-interactively 'org-inlinetask-demote))
   ((or (org-at-item-p)
	(and (org-region-active-p)
	     (save-excursion
	       (goto-char (region-beginning))
	       (org-at-item-p))))
    (when (org-check-for-hidden 'items) (org-hidden-tree-error))
    (call-interactively 'org-indent-item))
   ((run-hook-with-args-until-success 'org-metaright-final-hook))
   (t (call-interactively 'forward-word))))

(defun org-check-for-hidden (what)
  "Check if there are hidden headlines/items in the current visual line.
WHAT can be either `headlines' or `items'.  If the current line is
an outline or item heading and it has a folded subtree below it,
this function returns t, nil otherwise."
  (let ((re (cond
	     ((eq what 'headlines) org-outline-regexp-bol)
	     ((eq what 'items) (org-item-beginning-re))
	     (t (error "This should not happen"))))
	beg end)
    (save-excursion
      (catch 'exit
	(unless (org-region-active-p)
          (setq beg (line-beginning-position))
	  (forward-line 1)
	  (while (and (not (eobp)) ;; this is like `next-line'
		      (org-invisible-p (1- (point))))
	    (forward-line 1))
	  (setq end (point))
	  (goto-char beg)
          (goto-char (line-end-position))
	  (setq end (max end (point)))
	  (while (re-search-forward re end t)
	    (when (org-invisible-p (match-beginning 0))
	      (throw 'exit t))))
	nil))))

(defun org-metaup (&optional _arg)
  "Move subtree up or move table row up.
Calls `org-move-subtree-up' or `org-table-move-row' or
`org-move-item-up', depending on context.  Everywhere else, move
backward the element at point.  See the individual commands for
more information.

This function runs the functions in `org-metaup-hook' one by one
as a first step, and exits immediately if a function from the
hook returns non-nil.  In the absence of a specific context, the
function runs `org-metaup-final-hook' using the same logic."
  (interactive "P")
  (cond
   ((run-hook-with-args-until-success 'org-metaup-hook))
   ((and (org-region-active-p)
         (org-with-limited-levels
          (save-excursion
            (goto-char (region-beginning))
            (org-at-heading-p))))
    (when (org-check-for-hidden 'headlines) (org-hidden-tree-error))
    (let ((beg (region-beginning))
          (end (region-end)))
      (save-excursion
        ;; Go a little earlier because `org-move-subtree-down' will
        ;; insert before markers and we may overshoot in some cases.
        (goto-char (max beg (1- end)))
        (setq end (point-marker))
        (goto-char beg)
        (let ((level (org-current-level)))
          (when (or (and (> level 1) (re-search-forward (format "^\\*\\{1,%s\\} " (1- level)) end t))
                    ;; Search previous subtree.
                    (progn
                      (goto-char beg)
                      (forward-line 0)
                      (not (re-search-backward (format "^\\*\\{%s\\} " level) nil t))))
            (user-error "Cannot move past superior level or buffer limit"))
          ;; Drag first subtree above below the selected.
          (while (< (point) end)
            (let ((deactivate-mark nil))
              (call-interactively 'org-move-subtree-down)))))))
   ((org-region-active-p)
    (let* ((a (save-excursion
                (goto-char (region-beginning))
                (line-beginning-position)))
           (b (save-excursion
                (goto-char (region-end))
                (if (bolp) (1- (point)) (line-end-position))))
           (c (save-excursion
                (goto-char a)
                (move-beginning-of-line 0)
                (point)))
           (d (save-excursion
                (goto-char a)
                (move-end-of-line 0)
                (point)))
           (deactivate-mark nil)
           (swap? (< (point) (mark))))
      (transpose-regions a b c d)
      (set-mark c)
      (goto-char (+ c (- b a)))
      (when swap? (exchange-point-and-mark))))
   ((org-at-table-p) (org-call-with-arg 'org-table-move-row 'up))
   ((and (featurep 'org-inlinetask)
         (org-inlinetask-in-task-p))
    (org-drag-element-backward))
   ((org-at-heading-p) (call-interactively 'org-move-subtree-up))
   ((org-at-item-p) (call-interactively 'org-move-item-up))
   ((run-hook-with-args-until-success 'org-metaup-final-hook))
   (t (org-drag-element-backward))))

(defun org-metadown (&optional _arg)
  "Move subtree down or move table row down.
Calls `org-move-subtree-down' or `org-table-move-row' or
`org-move-item-down', depending on context.  Everywhere else,
move forward the element at point.  See the individual commands
for more information.

This function runs the functions in `org-metadown-hook' one by
one as a first step, and exits immediately if a function from the
hook returns non-nil.  In the absence of a specific context, the
function runs `org-metadown-final-hook' using the same logic."
  (interactive "P")
  (cond
   ((run-hook-with-args-until-success 'org-metadown-hook))
   ((and (org-region-active-p)
         (org-with-limited-levels
          (save-excursion
            (goto-char (region-beginning))
            (org-at-heading-p))))
    (when (org-check-for-hidden 'headlines) (org-hidden-tree-error))
    (let ((beg (region-beginning))
          (end (region-end)))
      (save-excursion
        (goto-char beg)
        (setq beg (point-marker))
        (let ((level (org-current-level)))
          (when (or (and (> level 1) (re-search-forward (format "^\\*\\{1,%s\\} " (1- level)) end t))
                    ;; Search next subtree.
                    (progn
                      (goto-char end)
                      (not (re-search-forward (format "^\\*\\{%s\\} " level) nil t))))
            (user-error "Cannot move past superior level or buffer limit"))
          ;; Drag first subtree below above the selected.
          (while (> (point) beg)
            (let ((deactivate-mark nil))
              (call-interactively 'org-move-subtree-up)))))))
   ((org-region-active-p)
    (let* ((a (save-excursion
                (goto-char (region-beginning))
                (line-beginning-position)))
	   (b (save-excursion
                (goto-char (region-end))
                (if (bolp) (1- (point)) (line-end-position))))
	   (c (save-excursion
                (goto-char b)
                (move-beginning-of-line (if (bolp) 1 2))
                (point)))
	   (d (save-excursion
                (goto-char b)
                (move-end-of-line (if (bolp) 1 2))
                (point)))
           (deactivate-mark nil)
           (swap? (< (point) (mark))))
      (transpose-regions a b c d)
      (set-mark (+ 1 a (- d c)))
      (goto-char (+ 1 a (- d c) (- b a)))
      (when swap? (exchange-point-and-mark))))
   ((org-at-table-p) (call-interactively 'org-table-move-row))
   ((and (featurep 'org-inlinetask)
         (org-inlinetask-in-task-p))
    (org-drag-element-forward))
   ((org-at-heading-p) (call-interactively 'org-move-subtree-down))
   ((org-at-item-p) (call-interactively 'org-move-item-down))
   ((run-hook-with-args-until-success 'org-metadown-final-hook))
   (t (org-drag-element-forward))))

(defun org-shiftup (&optional arg)
  "Act on current element according to context.
Call `org-timestamp-up' or `org-priority-up', or
`org-previous-item', or `org-table-move-cell-up'.  See the
individual commands for more information.

This function runs the functions in `org-shiftup-hook' one by one
as a first step, and exits immediately if a function from the
hook returns non-nil.  In the absence of a specific context, the
function also runs `org-shiftup-final-hook' using the same logic.

If none of the previous steps succeed and
`org-support-shift-select' is non-nil, the function runs
`shift-select-mode' associated command.  See that variable for
more information."
  (interactive "P")
  (cond
   ((run-hook-with-args-until-success 'org-shiftup-hook))
   ((and org-support-shift-select (org-region-active-p))
    (org-call-for-shift-select 'previous-line))
   ((org-at-timestamp-p 'lax)
    (call-interactively (if org-edit-timestamp-down-means-later
			    'org-timestamp-down 'org-timestamp-up)))
   ((and (not (eq org-support-shift-select 'always))
	 org-priority-enable-commands
	 (org-at-heading-p))
    (call-interactively 'org-priority-up))
   ((and (not org-support-shift-select) (org-at-item-p))
    (call-interactively 'org-previous-item))
   ((org-clocktable-try-shift 'up arg))
   ((and (not (eq org-support-shift-select 'always))
	 (org-at-table-p))
    (org-table-move-cell-up))
   ((run-hook-with-args-until-success 'org-shiftup-final-hook))
   (org-support-shift-select
    (org-call-for-shift-select 'previous-line))
   (t (org-shiftselect-error))))

(defun org-shiftdown (&optional arg)
  "Act on current element according to context.
Call `org-timestamp-down' or `org-priority-down', or
`org-next-item', or `org-table-move-cell-down'.  See the
individual commands for more information.

This function runs the functions in `org-shiftdown-hook' one by
one as a first step, and exits immediately if a function from the
hook returns non-nil.  In the absence of a specific context, the
function also runs `org-shiftdown-final-hook' using the same
logic.

If none of the previous steps succeed and
`org-support-shift-select' is non-nil, the function runs
`shift-select-mode' associated command.  See that variable for
more information."
  (interactive "P")
  (cond
   ((run-hook-with-args-until-success 'org-shiftdown-hook))
   ((and org-support-shift-select (org-region-active-p))
    (org-call-for-shift-select 'next-line))
   ((org-at-timestamp-p 'lax)
    (call-interactively (if org-edit-timestamp-down-means-later
			    'org-timestamp-up 'org-timestamp-down)))
   ((and (not (eq org-support-shift-select 'always))
	 org-priority-enable-commands
	 (org-at-heading-p))
    (call-interactively 'org-priority-down))
   ((and (not org-support-shift-select) (org-at-item-p))
    (call-interactively 'org-next-item))
   ((org-clocktable-try-shift 'down arg))
   ((and (not (eq org-support-shift-select 'always))
	 (org-at-table-p))
    (org-table-move-cell-down))
   ((run-hook-with-args-until-success 'org-shiftdown-final-hook))
   (org-support-shift-select
    (org-call-for-shift-select 'next-line))
   (t (org-shiftselect-error))))

(defun org-shiftright (&optional arg)
  "Act on the current element according to context.
This does one of the following:

- switch a timestamp at point one day into the future
- on a headline, switch to the next TODO keyword
- on an item, switch entire list to the next bullet type
- on a property line, switch to the next allowed value
- on a clocktable definition line, move time block into the future
- in a table, move a single cell right

This function runs the functions in `org-shiftright-hook' one by
one as a first step, and exits immediately if a function from the
hook returns non-nil.  In the absence of a specific context, the
function runs `org-shiftright-final-hook' using the same logic.

If none of the above succeeds and `org-support-shift-select' is
non-nil, runs `shift-select-mode' specific command.  See that
variable for more information."
  (interactive "P")
  (cond
   ((run-hook-with-args-until-success 'org-shiftright-hook))
   ((and org-support-shift-select (org-region-active-p))
    (org-call-for-shift-select 'forward-char))
   ((org-at-timestamp-p 'lax) (call-interactively 'org-timestamp-up-day))
   ((and (not (eq org-support-shift-select 'always))
	 (org-at-heading-p))
    (let ((org-inhibit-logging
	   (not org-treat-S-cursor-todo-selection-as-state-change))
	  (org-inhibit-blocking
	   (not org-treat-S-cursor-todo-selection-as-state-change)))
      (org-call-with-arg 'org-todo 'right)))
   ((or (and org-support-shift-select
	     (not (eq org-support-shift-select 'always))
	     (org-at-item-bullet-p))
	(and (not org-support-shift-select) (org-at-item-p)))
    (org-call-with-arg 'org-cycle-list-bullet nil))
   ((and (not (eq org-support-shift-select 'always))
	 (org-at-property-p))
    (call-interactively 'org-property-next-allowed-value))
   ((org-clocktable-try-shift 'right arg))
   ((and (not (eq org-support-shift-select 'always))
	 (org-at-table-p))
    (org-table-move-cell-right))
   ((run-hook-with-args-until-success 'org-shiftright-final-hook))
   (org-support-shift-select
    (org-call-for-shift-select 'forward-char))
   (t (org-shiftselect-error))))

(defun org-shiftleft (&optional arg)
  "Act on current element according to context.
This does one of the following:

- switch a timestamp at point one day into the past
- on a headline, switch to the previous TODO keyword.
- on an item, switch entire list to the previous bullet type
- on a property line, switch to the previous allowed value
- on a clocktable definition line, move time block into the past
- in a table, move a single cell left

This function runs the functions in `org-shiftleft-hook' one by
one as a first step, and exits immediately if a function from the
hook returns non-nil.  In the absence of a specific context, the
function runs `org-shiftleft-final-hook' using the same logic.

If none of the above succeeds and `org-support-shift-select' is
non-nil, runs `shift-select-mode' specific command.  See that
variable for more information."
  (interactive "P")
  (cond
   ((run-hook-with-args-until-success 'org-shiftleft-hook))
   ((and org-support-shift-select (org-region-active-p))
    (org-call-for-shift-select 'backward-char))
   ((org-at-timestamp-p 'lax) (call-interactively 'org-timestamp-down-day))
   ((and (not (eq org-support-shift-select 'always))
	 (org-at-heading-p))
    (let ((org-inhibit-logging
	   (not org-treat-S-cursor-todo-selection-as-state-change))
	  (org-inhibit-blocking
	   (not org-treat-S-cursor-todo-selection-as-state-change)))
      (org-call-with-arg 'org-todo 'left)))
   ((or (and org-support-shift-select
	     (not (eq org-support-shift-select 'always))
	     (org-at-item-bullet-p))
	(and (not org-support-shift-select) (org-at-item-p)))
    (org-call-with-arg 'org-cycle-list-bullet 'previous))
   ((and (not (eq org-support-shift-select 'always))
	 (org-at-property-p))
    (call-interactively 'org-property-previous-allowed-value))
   ((org-clocktable-try-shift 'left arg))
   ((and (not (eq org-support-shift-select 'always))
	 (org-at-table-p))
    (org-table-move-cell-left))
   ((run-hook-with-args-until-success 'org-shiftleft-final-hook))
   (org-support-shift-select
    (org-call-for-shift-select 'backward-char))
   (t (org-shiftselect-error))))

(defun org-shiftcontrolright ()
  "Switch to next TODO set."
  (interactive)
  (cond
   ((and org-support-shift-select (org-region-active-p))
    (org-call-for-shift-select 'forward-word))
   ((and (not (eq org-support-shift-select 'always))
	 (org-at-heading-p))
    (org-call-with-arg 'org-todo 'nextset))
   (org-support-shift-select
    (org-call-for-shift-select 'forward-word))
   (t (org-shiftselect-error))))

(defun org-shiftcontrolleft ()
  "Switch to previous TODO set."
  (interactive)
  (cond
   ((and org-support-shift-select (org-region-active-p))
    (org-call-for-shift-select 'backward-word))
   ((and (not (eq org-support-shift-select 'always))
	 (org-at-heading-p))
    (org-call-with-arg 'org-todo 'previousset))
   (org-support-shift-select
    (org-call-for-shift-select 'backward-word))
   (t (org-shiftselect-error))))

(defun org-shiftcontrolup (&optional n)
  "Change timestamps synchronously up in CLOCK log lines.
Optional argument N tells to change by that many units."
  (interactive "P")
  (if (and (org-at-clock-log-p) (org-at-timestamp-p 'lax))
      (let (org-support-shift-select)
	(org-clock-timestamps-up n))
    (user-error "Not at a clock log")))

(defun org-shiftcontroldown (&optional n)
  "Change timestamps synchronously down in CLOCK log lines.
Optional argument N tells to change by that many units."
  (interactive "P")
  (if (and (org-at-clock-log-p) (org-at-timestamp-p 'lax))
      (let (org-support-shift-select)
	(org-clock-timestamps-down n))
    (user-error "Not at a clock log")))

(defun org-increase-number-at-point (&optional inc)
  "Increment the number at point.
With an optional prefix numeric argument INC, increment using
this numeric value."
  (interactive "p")
  (if (not (number-at-point))
      (user-error "Not on a number")
    (unless inc (setq inc 1))
    (let ((pos (point))
	  (beg (skip-chars-backward "-+^/*0-9eE."))
	  (end (skip-chars-forward "-+^/*0-9eE.")) nap)
      (setq nap (buffer-substring-no-properties
		 (+ pos beg) (+ pos beg end)))
      (delete-region (+ pos beg) (+ pos beg end))
      (insert (calc-eval (concat (number-to-string inc) "+" nap))))
    (when (org-at-table-p)
      (org-table-align)
      (org-table-end-of-field 1))))

(defun org-decrease-number-at-point (&optional inc)
  "Decrement the number at point.
With an optional prefix numeric argument INC, decrement using
this numeric value."
  (interactive "p")
  (org-increase-number-at-point (- (or inc 1))))

(defun org-ctrl-c-ret ()
  "Call `org-table-hline-and-move' or `org-insert-heading'."
  (interactive)
  (cond
   ((org-at-table-p) (call-interactively 'org-table-hline-and-move))
   (t (call-interactively 'org-insert-heading))))

(defun org-copy-visible (beg end)
  "Copy the visible parts of the region."
  (interactive "r")
  (let ((result ""))
    (while (/= beg end)
      (while (org-invisible-p beg)
	(setq beg (org-fold-next-visibility-change beg end)))
      (let ((next (org-fold-next-visibility-change beg end)))
	(setq result (concat result (buffer-substring beg next)))
	(setq beg next)))
    ;; Prevent Emacs from adding full selected text to `kill-ring'
    ;; when `select-enable-primary' is non-nil.  This special value of
    ;; `deactivate-mark' only works since Emacs 29.
    (setq deactivate-mark 'dont-save)
    (kill-new result)
    (message "Visible strings have been copied to the kill ring.")))

(defun org-copy-special ()
  "Copy region in table or copy current subtree.
Calls `org-table-copy-region' or `org-copy-subtree', depending on
context.  See the individual commands for more information."
  (interactive)
  (call-interactively
   (if (org-at-table-p) #'org-table-copy-region #'org-copy-subtree)))

(defun org-cut-special ()
  "Cut region in table or cut current subtree.
Calls `org-table-cut-region' or `org-cut-subtree', depending on
context.  See the individual commands for more information."
  (interactive)
  (call-interactively
   (if (org-at-table-p) #'org-table-cut-region #'org-cut-subtree)))

(defun org-paste-special (arg)
  "Paste rectangular region into table, or past subtree relative to level.
Calls `org-table-paste-rectangle' or `org-paste-subtree', depending on context.
See the individual commands for more information."
  (interactive "P")
  (if (org-at-table-p)
      (org-table-paste-rectangle)
    (org-paste-subtree arg)))

(defun org-edit-special (&optional arg)
  "Call a special editor for the element at point.
When at a table, call the formula editor with `org-table-edit-formulas'.
When at table.el table, edit it in dedicated buffer.
When in a source code block, call `org-edit-src-code'; with prefix
  argument, switch to session buffer.
When in an example block, call `org-edit-src-code'.
When in an inline code block, call `org-edit-inline-src-code'.
When in a fixed-width region, call `org-edit-fixed-width-region'.
When in an export block, call `org-edit-export-block'.
When in a comment block, call `org-edit-comment-block'.
When in a LaTeX environment, call `org-edit-latex-environment'.
When at an INCLUDE, SETUPFILE or BIBLIOGRAPHY keyword, visit the included file.
When at a footnote reference, call `org-edit-footnote-reference'.
When at a planning line call, `org-deadline' and/or `org-schedule'.
When at an active timestamp, call `org-timestamp'.
When at an inactive timestamp, call `org-timestamp-inactive'.
On a link, call `ffap' to visit the link at point.
Otherwise, return a user error."
  (interactive "P")
  (let ((element (org-element-at-point)))
    (barf-if-buffer-read-only)
    (pcase (org-element-type element)
      (`src-block
       (if (not arg) (org-edit-src-code)
	 (let* ((info (org-babel-get-src-block-info))
		(lang (nth 0 info))
		(params (nth 2 info))
		(session (cdr (assq :session params))))
	   (if (not session) (org-edit-src-code)
	     ;; At a source block with a session and function called
	     ;; with an ARG: switch to the buffer related to the
	     ;; inferior process.
	     (switch-to-buffer
	      (funcall (intern (concat "org-babel-prep-session:" lang))
		       session params))))))
      (`keyword
       (unless (member (org-element-property :key element)
		       '("BIBLIOGRAPHY" "INCLUDE" "SETUPFILE"))
	 (user-error "No special environment to edit here"))
       (let ((value (org-element-property :value element)))
	 (unless (org-string-nw-p value) (user-error "No file to edit"))
	 (let ((file (and (string-match "\\`\"\\(.*?\\)\"\\|\\S-+" value)
			  (or (match-string 1 value)
			      (match-string 0 value)))))
	   (when (org-url-p file)
	     (user-error "Files located with a URL cannot be edited"))
	   (org-link-open-from-string
	    (format "[[%s]]" (expand-file-name file))))))
      (`table
       (if (eq (org-element-property :type element) 'table.el)
           (org-edit-table.el)
         (call-interactively 'org-table-edit-formulas)))
      ;; Only Org tables contain `table-row' type elements.
      (`table-row (call-interactively 'org-table-edit-formulas))
      (`example-block (org-edit-src-code))
      (`export-block (org-edit-export-block))
      (`comment-block (org-edit-comment-block))
      (`fixed-width (org-edit-fixed-width-region))
      (`latex-environment (org-edit-latex-environment))
      (`planning
       (let ((proplist (cadr element)))
         (mapc #'call-interactively
               (remq nil
                     (list
                      (when (plist-get proplist :deadline) #'org-deadline)
                      (when (plist-get proplist :scheduled) #'org-schedule))))))
      (_
       ;; No notable element at point.  Though, we may be at a link or
       ;; a footnote reference, which are objects.  Thus, scan deeper.
       (let ((context (org-element-context element)))
	 (pcase (org-element-type context)
	   (`footnote-reference (org-edit-footnote-reference))
	   (`inline-src-block (org-edit-inline-src-code))
	   (`latex-fragment (org-edit-latex-fragment))
	   (`timestamp (if (eq 'inactive (org-element-property :type context))
			   (call-interactively #'org-timestamp-inactive)
			 (call-interactively #'org-timestamp)))
	   (`link (call-interactively #'ffap))
	   (_ (user-error "No special environment to edit here"))))))))

(defun org-ctrl-c-ctrl-c (&optional arg)
  "Set tags in headline, or update according to changed information at point.

This command does many different things, depending on context:

- If column view is active, in agenda or org buffers, quit it.

- If there are highlights, remove them.

- If a function in `org-ctrl-c-ctrl-c-hook' recognizes this location,
  this is what we do.

- If the cursor is on a statistics cookie, update it.

- If the cursor is in a headline, in an agenda or an org buffer,
  prompt for tags and insert them into the current line, aligned
  to `org-tags-column'.  When called with prefix arg, realign all
  tags in the current buffer.

- If the cursor is in one of the special #+KEYWORD lines, this
  triggers scanning the buffer for these lines and updating the
  information.

- If the cursor is inside a table, realign the table.  This command
  works even if the automatic table editor has been turned off.

- If the cursor is on a #+TBLFM line, re-apply the formulas to
  the entire table.

- If the cursor is at a footnote reference or definition, jump to
  the corresponding definition or references, respectively.

- If the cursor is a the beginning of a dynamic block, update it.

- If the current buffer is a capture buffer, close note and file it.

- If the cursor is on a <<<target>>>, update radio targets and
  corresponding links in this buffer.

- If the cursor is on a numbered item in a plain list, renumber the
  ordered list.

- If the cursor is on a checkbox, toggle it.

- If the cursor is on a code block, evaluate it.  The variable
  `org-confirm-babel-evaluate' can be used to control prompting
  before code block evaluation, by default every code block
  evaluation requires confirmation.  Code block evaluation can be
  inhibited by setting `org-babel-no-eval-on-ctrl-c-ctrl-c'."
  (interactive "P")
  (cond
   ((bound-and-true-p org-columns-overlays) (org-columns-quit))
   ((or (bound-and-true-p org-clock-overlays) org-occur-highlights)
    (when (boundp 'org-clock-overlays) (org-clock-remove-overlays))
    (org-remove-occur-highlights)
    (message "Temporary highlights/overlays removed from current buffer"))
   ((and (local-variable-p 'org-finish-function)
	 (fboundp org-finish-function))
    (funcall org-finish-function))
   ((org-babel-hash-at-point))
   ((run-hook-with-args-until-success 'org-ctrl-c-ctrl-c-hook))
   (t
    (let* ((context
	    (org-element-lineage
	     (org-element-context)
	     ;; Limit to supported contexts.
	     '(babel-call clock dynamic-block footnote-definition
			  footnote-reference inline-babel-call inline-src-block
			  inlinetask item keyword node-property paragraph
			  plain-list planning property-drawer radio-target
			  src-block statistics-cookie table table-cell table-row
			  timestamp)
	     t))
	   (radio-list-p (org-at-radio-list-p))
	   (type (org-element-type context)))
      ;; For convenience: at the first line of a paragraph on the same
      ;; line as an item, apply function on that item instead.
      (when (eq type 'paragraph)
	(let ((parent (org-element-parent context)))
	  (when (and (org-element-type-p parent 'item)
		     (= (line-beginning-position)
			(org-element-begin parent)))
	    (setq context parent)
	    (setq type 'item))))
      ;; Act according to type of element or object at point.
      ;;
      ;; Do nothing on a blank line, except if it is contained in
      ;; a source block.  Hence, we first check if point is in such
      ;; a block and then if it is at a blank line.
      (pcase type
	((or `inline-src-block `src-block)
	 (unless org-babel-no-eval-on-ctrl-c-ctrl-c
	   (org-babel-eval-wipe-error-buffer)
	   (org-babel-execute-src-block
	    current-prefix-arg (org-babel-get-src-block-info nil context))))
	((guard (org-match-line "[ \t]*$"))
	 (or (run-hook-with-args-until-success 'org-ctrl-c-ctrl-c-final-hook)
	     (user-error
	      (substitute-command-keys
	       "`\\[org-ctrl-c-ctrl-c]' can do nothing useful here"))))
	((or `babel-call `inline-babel-call)
	 (let ((info (org-babel-lob-get-info context)))
	   (when info (org-babel-execute-src-block nil info nil type))))
	(`clock
         (if (org-at-timestamp-p 'lax)
             ;; Update the timestamp as well.  `org-timestamp-change'
             ;; will call `org-clock-update-time-maybe'.
             (org-timestamp-change 0 'day)
           (org-clock-update-time-maybe)))
	(`dynamic-block
	 (save-excursion
	   (goto-char (org-element-post-affiliated context))
	   (org-update-dblock)))
	(`footnote-definition
	 (goto-char (org-element-post-affiliated context))
	 (call-interactively 'org-footnote-action))
	(`footnote-reference (call-interactively #'org-footnote-action))
	((or `headline `inlinetask)
	 (save-excursion (goto-char (org-element-begin context))
			 (call-interactively #'org-set-tags-command)))
	(`item
	 ;; At an item: `C-u C-u' sets checkbox to "[-]"
	 ;; unconditionally, whereas `C-u' will toggle its presence.
	 ;; Without a universal argument, if the item has a checkbox,
	 ;; toggle it.  Otherwise repair the list.
	 (if (or radio-list-p
		 (and (boundp org-list-checkbox-radio-mode)
		      org-list-checkbox-radio-mode))
	     (org-toggle-radio-button arg)
	   (let* ((box (org-element-property :checkbox context))
		  (struct (org-element-property :structure context))
		  (old-struct (copy-tree struct))
		  (parents (org-list-parents-alist struct))
		  (prevs (org-list-prevs-alist struct))
		  (orderedp (org-not-nil (org-entry-get nil "ORDERED"))))
	     (org-list-set-checkbox
	      (org-element-begin context) struct
	      (cond ((equal arg '(16)) "[-]")
		    ((and (not box) (equal arg '(4))) "[ ]")
		    ((or (not box) (equal arg '(4))) nil)
		    ((eq box 'on) "[ ]")
		    (t "[X]")))
	     ;; Mimic `org-list-write-struct' but with grabbing a return
	     ;; value from `org-list-struct-fix-box'.
	     (org-list-struct-fix-ind struct parents 2)
	     (org-list-struct-fix-item-end struct)
	     (org-list-struct-fix-bul struct prevs)
	     (org-list-struct-fix-ind struct parents)
	     (let ((block-item
		    (org-list-struct-fix-box struct parents prevs orderedp)))
	       (if (and box (equal struct old-struct))
		   (if (equal arg '(16))
		       (message "Checkboxes already reset")
		     (user-error "Cannot toggle this checkbox: %s"
				 (if (eq box 'on)
				     "all subitems checked"
				   "unchecked subitems")))
		 (org-list-struct-apply-struct struct old-struct)
		 (org-update-checkbox-count-maybe))
	       (when block-item
		 (message "Checkboxes were removed due to empty box at line %d"
			  (org-current-line block-item)))))))
	(`plain-list
	 ;; At a plain list, with a double C-u argument, set
	 ;; checkboxes of each item to "[-]", whereas a single one
	 ;; will toggle their presence according to the state of the
	 ;; first item in the list.  Without an argument, repair the
	 ;; list.
	 (if (or radio-list-p
		 (and (boundp org-list-checkbox-radio-mode)
		      org-list-checkbox-radio-mode))
	     (org-toggle-radio-button arg)
	   (let* ((begin (org-element-contents-begin context))
		  (struct (org-element-property :structure context))
		  (old-struct (copy-tree struct))
		  (first-box (save-excursion
			       (goto-char begin)
			       (looking-at org-list-full-item-re)
			       (match-string-no-properties 3)))
		  (new-box (cond ((equal arg '(16)) "[-]")
				 ((equal arg '(4)) (unless first-box "[ ]"))
				 ((equal first-box "[X]") "[ ]")
				 (t "[X]"))))
	     (cond
	      (arg
	       (dolist (pos
			(org-list-get-all-items
			 begin struct (org-list-prevs-alist struct)))
		 (org-list-set-checkbox pos struct new-box)))
	      ((and first-box (eq (point) begin))
	       ;; For convenience, when point is at bol on the first
	       ;; item of the list and no argument is provided, simply
	       ;; toggle checkbox of that item, if any.
	       (org-list-set-checkbox begin struct new-box)))
	     (when (equal
		    (org-list-write-struct
		     struct (org-list-parents-alist struct) old-struct)
		    old-struct)
	       (message "Cannot update this checkbox"))
	     (org-update-checkbox-count-maybe))))
	(`keyword
	 (let ((org-inhibit-startup-visibility-stuff t)
	       (org-startup-align-all-tables nil))
	   (when (boundp 'org-table-coordinate-overlays)
	     (mapc #'delete-overlay org-table-coordinate-overlays)
	     (setq org-table-coordinate-overlays nil))
	   (org-save-outline-visibility 'use-markers (org-mode-restart)))
	 (message "Local setup has been refreshed"))
	((or `property-drawer `node-property)
	 (call-interactively #'org-property-action))
	(`radio-target
	 (call-interactively #'org-update-radio-target-regexp))
	(`statistics-cookie
	 (call-interactively #'org-update-statistics-cookies))
	((or `table `table-cell `table-row)
	 ;; At a table, generate a plot if on the #+plot line,
         ;; recalculate every field and align it otherwise.  Also
	 ;; send the table if necessary.
         (cond
          ((and (org-match-line "[ \t]*#\\+plot:")
                (< (point) (org-element-post-affiliated context)))
           (org-plot/gnuplot))
          ;; If the table has a `table.el' type, just give up.
          ((eq (org-element-property :type context) 'table.el)
           (message "%s" (substitute-command-keys "\\<org-mode-map>\
Use `\\[org-edit-special]' to edit table.el tables")))
          ;; At a table row or cell, maybe recalculate line but always
	  ;; align table.
          ((or (eq type 'table)
               ;; Check if point is at a TBLFM line.
               (and (eq type 'table-row)
                    (= (point) (org-element-end context))))
           (save-excursion
             (if (org-at-TBLFM-p)
                 (progn (require 'org-table)
                        (org-table-calc-current-TBLFM))
               (goto-char (org-element-contents-begin context))
               (org-call-with-arg 'org-table-recalculate (or arg t))
               (orgtbl-send-table 'maybe))))
          (t
           (org-table-maybe-eval-formula)
           (cond (arg (call-interactively #'org-table-recalculate))
                 ((org-table-maybe-recalculate-line))
                 (t (org-table-align))))))
	((or `timestamp (and `planning (guard (org-at-timestamp-p 'lax))))
	 (org-timestamp-change 0 'day))
	((and `nil (guard (org-at-heading-p)))
	 ;; When point is on an unsupported object type, we can miss
	 ;; the fact that it also is at a heading.  Handle it here.
	 (call-interactively #'org-set-tags-command))
	((guard
	  (run-hook-with-args-until-success 'org-ctrl-c-ctrl-c-final-hook)))
	(_
	 (user-error
	  (substitute-command-keys
	   "`\\[org-ctrl-c-ctrl-c]' can do nothing useful here"))))))))

(defun org-mode-restart ()
  "Restart `org-mode'."
  (interactive)
  (let ((indent-status (bound-and-true-p org-indent-mode)))
    (funcall major-mode)
    (hack-local-variables)
    (when (and indent-status (not (bound-and-true-p org-indent-mode)))
      (org-indent-mode -1))
    (org-reset-file-cache))
  (message "%s restarted" major-mode))

(defun org-kill-note-or-show-branches ()
  "Abort storing current note, or show just branches."
  (interactive)
  (cond (org-finish-function
	 (let ((org-note-abort t)) (funcall org-finish-function)))
	((org-before-first-heading-p)
	 (org-fold-show-branches-buffer)
	 (org-fold-hide-archived-subtrees (point-min) (point-max)))
	(t
	 (let ((beg (progn (org-back-to-heading) (point)))
	       (end (save-excursion (org-end-of-subtree t t) (point))))
	   (org-fold-hide-subtree)
	   (org-fold-show-branches)
	   (org-fold-hide-archived-subtrees beg end)))))

(defun org-delete-indentation (&optional arg beg end)
  "Join current line to previous and fix whitespace at join.

If previous line is a headline add to headline title.  Otherwise
the function calls `delete-indentation'.

If there is a region (BEG END), then join the lines in that region.

With a non-nil prefix ARG, join the line with the following one,
ignoring region."
  (interactive
   (cons current-prefix-arg
         (when (and (not current-prefix-arg) (use-region-p))
           (list (region-beginning) (region-end)))))
  (unless (and beg end)
    ;; No region selected or BEG/END arguments not passed.
    (setq beg (line-beginning-position (if arg 1 0))
          end (line-end-position (if arg 2 1))))
  (if (save-excursion
        (goto-char beg)
        (forward-line 0)
        (and (< (line-end-position) end)
             (let ((case-fold-search nil))
	       (looking-at org-complex-heading-regexp))))
      ;; At headline.
      (let ((tags-column (when (match-beginning 5)
			   (save-excursion (goto-char (match-beginning 5))
					   (current-column))))
	    string)
        (goto-char beg)
        ;; Join all but headline.
        (save-excursion
          (save-match-data
            (if (version<= "27" emacs-version)
                (delete-indentation nil (line-beginning-position 2) end)
              ;; FIXME: Emacs 26.  `delete-indentation' does not yet
              ;; accept BEG/END arguments.
              (save-restriction
                (narrow-to-region beg end)
                (goto-char beg)
                (forward-line 2)
                (while (< (point) (point-max))
                  (delete-indentation)
                  (forward-line 1))))))
        (setq string (org-trim (delete-and-extract-region (line-end-position) (line-end-position 2))))
	(goto-char (or (match-end 4)
		       (match-beginning 5)
		       (match-end 0)))
	(skip-chars-backward " \t")
	(save-excursion (insert " " string))
	;; Adjust alignment of tags.
	(cond
	 ((not tags-column))		;no tags
	 (org-auto-align-tags (org-align-tags))
	 (t (org--align-tags-here tags-column)))) ;preserve tags column
    (if (version<= "27" emacs-version)
        (funcall-interactively #'delete-indentation arg beg end)
      ;; FIXME: Emacs 26.  `delete-indentation' does not yet
      ;; accept BEG/END arguments.
      (save-restriction
        (narrow-to-region beg end)
        (goto-char beg)
        (forward-line 1)
        (while (< (point) (point-max))
          (delete-indentation)
          (forward-line 1))))))

(defun org-open-line (n)
  "Insert a new row in tables, call `open-line' elsewhere.
If `org-special-ctrl-o' is nil, just call `open-line' everywhere.
As a special case, when a document starts with a table, allow to
call `open-line' on the very first character."
  (interactive "*p")
  (if (and org-special-ctrl-o (/= (point) 1) (org-at-table-p))
      (org-table-insert-row)
    (open-line n)))

(defun org--newline (indent arg interactive)
  "Call `newline-and-indent' or just `newline'.
If INDENT is non-nil, call `newline-and-indent' with ARG to
indent unconditionally; otherwise, call `newline' with ARG and
INTERACTIVE, which can trigger indentation if
`electric-indent-mode' is enabled."
  (if indent
      (org-newline-and-indent arg)
    (newline arg interactive)))

(defun org-return (&optional indent arg interactive)
  "Goto next table row or insert a newline.

Calls `org-table-next-row' or `newline', depending on context.

When optional INDENT argument is non-nil, call
`newline-and-indent' with ARG, otherwise call `newline' with ARG
and INTERACTIVE.

When `org-return-follows-link' is non-nil and point is on
a timestamp, a link or a citation, call `org-open-at-point'.
However, it will not happen if point is in a table or on a \"dead\"
object (e.g., within a comment).  In these case, you need to use
`org-open-at-point' directly."
  (interactive "i\nP\np")
  (let* ((context (if org-return-follows-link (org-element-context)
		    (org-element-at-point)))
         (element-type (org-element-type context)))
    (cond
     ;; In a table, call `org-table-next-row'.  However, before first
     ;; column or after last one, split the table.
     ((or (and (eq 'table element-type)
	       (not (eq 'table.el (org-element-property :type context)))
	       (>= (point) (org-element-contents-begin context))
	       (< (point) (org-element-contents-end context)))
	  (org-element-lineage context '(table-row table-cell) t))
      (if (or (looking-at-p "[ \t]*$")
	      (save-excursion (skip-chars-backward " \t") (bolp)))
	  (insert "\n")
	(org-table-justify-field-maybe)
	(call-interactively #'org-table-next-row)))
     ;; On a link, a timestamp or a citation, call `org-open-at-point'
     ;; if `org-return-follows-link' allows it.  Tolerate fuzzy
     ;; locations, e.g., in a comment, as `org-open-at-point'.
     ((and org-return-follows-link
	   (or (and (eq 'link element-type)
		    ;; Ensure point is not on the white spaces after
		    ;; the link.
		    (let ((origin (point)))
		      (org-with-point-at (org-element-end context)
			(skip-chars-backward " \t")
			(> (point) origin))))
	       (org-in-regexp org-ts-regexp-both nil t)
	       (org-in-regexp org-tsr-regexp-both nil  t)
               (org-element-lineage context '(citation citation-reference) 'include-self)
	       (org-in-regexp org-link-any-re nil t)))
      (call-interactively #'org-open-at-point))
     ;; Insert newline in heading, but preserve tags.
     ((and (not (bolp))
	   (let ((case-fold-search nil))
	     (org-match-line org-complex-heading-regexp)))
      ;; At headline.  Split line.  However, if point is on keyword,
      ;; priority cookie or tags, do not break any of them: add
      ;; a newline after the headline instead.
      (let ((tags-column (and (match-beginning 5)
			      (save-excursion (goto-char (match-beginning 5))
					      (current-column))))
	    (string
	     (when (and (match-end 4) (org-point-in-group (point) 4))
	       (delete-and-extract-region (point) (match-end 4)))))
	;; Adjust tag alignment.
	(cond
	 ((not (and tags-column string)))
	 (org-auto-align-tags (org-align-tags))
	 (t (org--align-tags-here tags-column))) ;preserve tags column
	(end-of-line)
	(org-fold-show-entry 'hide-drawers)
	(org--newline indent arg interactive)
	(when string (save-excursion (insert (org-trim string))))))
     ;; In a list, make sure indenting keeps trailing text within.
     ((and (not (eolp))
	   (org-element-lineage context 'item))
      (let ((trailing-data
	     (delete-and-extract-region (point) (line-end-position))))
	(org--newline indent arg interactive)
	(save-excursion (insert trailing-data))))
     (t
      ;; Do not auto-fill when point is in an Org property drawer.
      (let ((auto-fill-function (and (not (org-at-property-p))
				     auto-fill-function)))
	(org--newline indent arg interactive))))))

(defun org-return-and-maybe-indent ()
  "Goto next table row, or insert a newline, maybe indented.
Call `org-table-next-row' or `org-return', depending on context.
See the individual commands for more information.

When inserting a newline, if `org-adapt-indentation' is t:
indent the line if `electric-indent-mode' is disabled, don't
indent it if it is enabled."
  (interactive)
  (org-return (not electric-indent-mode)))

(defun org-ctrl-c-tab (&optional arg)
  "Toggle columns width in a table, or show children.
Call `org-table-toggle-column-width' if point is in a table.
Otherwise provide a compact view of the children.  ARG is the
level to hide."
  (interactive "p")
  (cond
   ((org-at-table-p)
    (call-interactively #'org-table-toggle-column-width))
   ((org-before-first-heading-p)
    (save-excursion
      (org-fold-flag-above-first-heading)
      (org-fold-hide-sublevels (or arg 1))))
   (t
    (org-fold-hide-subtree)
    (org-fold-show-children arg))))

(defun org-ctrl-c-star ()
  "Compute table, or change heading status of lines.
Calls `org-table-recalculate' or `org-toggle-heading',
depending on context."
  (interactive)
  (cond
   ((org-at-table-p)
    (call-interactively 'org-table-recalculate))
   (t
    ;; Convert all lines in region to list items
    (call-interactively 'org-toggle-heading))))

(defun org-ctrl-c-minus ()
  "Insert separator line in table or modify bullet status of line.
Also turns a plain line or a region of lines into list items.
Calls `org-table-insert-hline', `org-toggle-item', or
`org-cycle-list-bullet', depending on context."
  (interactive)
  (cond
   ((org-at-table-p)
    (call-interactively 'org-table-insert-hline))
   ((org-region-active-p)
    (call-interactively 'org-toggle-item))
   ((org-in-item-p)
    (call-interactively 'org-cycle-list-bullet))
   (t
    (call-interactively 'org-toggle-item))))

(defun org-toggle-heading (&optional nstars)
  "Convert headings to normal text, or items or text to headings.
If there is no active region, only convert the current line.

With a `\\[universal-argument]' prefix, convert the whole list at
point into heading.

In a region:

- If the first non blank line is a headline, remove the stars
  from all headlines in the region.

- If it is a normal line, turn each and every normal line (i.e.,
  not an heading or an item) in the region into headings.  If you
  want to convert only the first line of this region, use one
  universal prefix argument.

- If it is a plain list item, turn all plain list items into headings.
  The checkboxes are converted to appropriate TODO or DONE keywords
  (using `car' or `org-done-keywords' and `org-not-done-keywords' when
  available).

When converting a line into a heading, the number of stars is chosen
such that the lines become children of the current entry.  However,
when a numeric prefix argument is given, its value determines the
number of stars to add."
  (interactive "P")
  (let ((skip-blanks
	 ;; Return beginning of first non-blank line, starting from
	 ;; line at POS.
	 (lambda (pos)
	   (save-excursion
	     (goto-char pos)
	     (while (org-at-comment-p) (forward-line))
	     (skip-chars-forward " \r\t\n")
             (line-beginning-position))))
	beg end toggled)
    ;; Determine boundaries of changes.  If a universal prefix has
    ;; been given, put the list in a region.  If region ends at a bol,
    ;; do not consider the last line to be in the region.

    (when (and current-prefix-arg (org-at-item-p))
      (when (listp current-prefix-arg) (setq current-prefix-arg 1))
      (org-mark-element))

    (if (org-region-active-p)
	(setq beg (funcall skip-blanks (region-beginning))
	      end (copy-marker (save-excursion
				 (goto-char (region-end))
                                 (if (bolp) (point) (line-end-position)))))
      (setq beg (funcall skip-blanks (line-beginning-position))
            end (copy-marker (line-end-position))))
    ;; Ensure inline tasks don't count as headings.
    (org-with-limited-levels
     (save-excursion
       (goto-char beg)
       (cond
	;; Case 1. Started at an heading: de-star headings.
	((org-at-heading-p)
	 (while (< (point) end)
	   (when (org-at-heading-p)
	     (looking-at org-outline-regexp) (replace-match "")
	     (setq toggled t))
	   (forward-line)))
	;; Case 2. Started at an item: change items into headlines.
	;;         One star will be added by `org-list-to-subtree'.
	((org-at-item-p)
	 (while (< (point) end)
	   (when (org-at-item-p)
	     ;; Pay attention to cases when region ends before list.
	     (let* ((struct (org-list-struct))
		    (list-end
		     (min (org-list-get-bottom-point struct) (1+ end))))
	       (save-restriction
		 (narrow-to-region (point) list-end)
		 (insert (org-list-to-subtree
			  (org-list-to-lisp t)
			  (pcase (org-current-level)
			    (`nil 1)
			    (l (1+ (org-reduced-level l))))
                          ;; Keywords to replace checkboxes.
                          (list
                           ;; [X]
                           :cbon (concat (or (car org-done-keywords) "DONE") " ")
                           ;; [ ]
                           :cboff (concat (or (car org-not-done-keywords) "TODO") " ")
                           ;; [-]
                           :cbtrans (concat (or (car org-not-done-keywords) "TODO") " ")))
			 "\n")))
	     (setq toggled t))
	   (forward-line)))
	;; Case 3. Started at normal text: make every line an heading,
	;;         skipping headlines and items.
	(t (let* ((stars
		   (make-string
		    (if (numberp nstars) nstars (or (org-current-level) 0)) ?*))
		  (add-stars
		   (cond (nstars "")	; stars from prefix only
			 ((equal stars "") "*")	; before first heading
			 (org-odd-levels-only "**") ; inside heading, odd
			 (t "*")))	; inside heading, oddeven
		  (rpl (concat stars add-stars " "))
		  (lend (when (listp nstars) (save-excursion (end-of-line) (point)))))
	     (while (< (point) (if (equal nstars '(4)) lend end))
	       (when (and (not (or (org-at-heading-p) (org-at-item-p) (org-at-comment-p)))
			  (looking-at "\\([ \t]*\\)\\(\\S-\\)"))
		 (replace-match (concat rpl (match-string 2))) (setq toggled t))
	       (forward-line)))))))
    (unless toggled (message "Cannot toggle heading from here"))))

(defun org-meta-return (&optional arg)
  "Insert a new heading or wrap a region in a table.
Calls `org-insert-heading', `org-insert-item' or
`org-table-wrap-region', depending on context.  When called with
an argument, unconditionally call `org-insert-heading'."
  (interactive "P")
  (or (run-hook-with-args-until-success 'org-metareturn-hook)
      (call-interactively (cond (arg #'org-insert-heading)
				((org-at-table-p) #'org-table-wrap-region)
				((org-in-item-p) #'org-insert-item)
				(t #'org-insert-heading)))))

;;; Menu entries
(defsubst org-in-subtree-not-table-p ()
  "Are we in a subtree and not in a table?"
  (and (not (org-before-first-heading-p))
       (not (org-at-table-p))))

;; Define the Org mode menus
(easy-menu-define org-org-menu org-mode-map "Org menu."
  `("Org"
    ("Show/Hide"
     ["Cycle Visibility" org-cycle :active (or (bobp) (outline-on-heading-p))]
     ["Cycle Global Visibility" org-shifttab :active (not (org-at-table-p))]
     ["Sparse Tree..." org-sparse-tree t]
     ["Reveal Context" org-fold-reveal t]
     ["Show All" org-fold-show-all t]
     "--"
     ["Subtree to indirect buffer" org-tree-to-indirect-buffer t])
    "--"
    ["New Heading" org-insert-heading t]
    ("Navigate Headings"
     ["Up" outline-up-heading t]
     ["Next" outline-next-visible-heading t]
     ["Previous" outline-previous-visible-heading t]
     ["Next Same Level" outline-forward-same-level t]
     ["Previous Same Level" outline-backward-same-level t]
     "--"
     ["Jump" org-goto t])
    ("Edit Structure"
     ["Move Subtree Up" org-metaup (org-at-heading-p)]
     ["Move Subtree Down" org-metadown (org-at-heading-p)]
     "--"
     ["Copy Subtree"  org-copy-special (org-in-subtree-not-table-p)]
     ["Cut Subtree"  org-cut-special (org-in-subtree-not-table-p)]
     ["Paste Subtree"  org-paste-special (not (org-at-table-p))]
     "--"
     ["Clone subtree, shift time" org-clone-subtree-with-time-shift t]
     "--"
     ["Copy visible text"  org-copy-visible t]
     "--"
     ["Promote Heading" org-metaleft (org-in-subtree-not-table-p)]
     ["Promote Subtree" org-shiftmetaleft (org-in-subtree-not-table-p)]
     ["Demote Heading"  org-metaright (org-in-subtree-not-table-p)]
     ["Demote Subtree"  org-shiftmetaright (org-in-subtree-not-table-p)]
     "--"
     ["Sort Region/Children" org-sort t]
     "--"
     ["Convert to odd levels" org-convert-to-odd-levels t]
     ["Convert to odd/even levels" org-convert-to-oddeven-levels t])
    ("Editing"
     ["Emphasis..." org-emphasize t]
     ["Add block structure" org-insert-structure-template t]
     ["Edit Source Example" org-edit-special t]
     "--"
     ["Footnote new/jump" org-footnote-action t]
     ["Footnote extra" (org-footnote-action t) :active t :keys "C-u C-c C-x f"])
    ("Archive"
     ["Archive (default method)" org-archive-subtree-default (org-in-subtree-not-table-p)]
     "--"
     ["Move Subtree to Archive file" org-archive-subtree (org-in-subtree-not-table-p)]
     ["Toggle ARCHIVE tag" org-toggle-archive-tag (org-in-subtree-not-table-p)]
     ["Move subtree to Archive sibling" org-archive-to-archive-sibling (org-in-subtree-not-table-p)])
    "--"
    ("Hyperlinks"
     ["Store Link (Global)" org-store-link t]
     ["Find existing link to here" org-occur-link-in-agenda-files t]
     ["Insert Link" org-insert-link t]
     ["Follow Link" org-open-at-point t]
     "--"
     ["Next link" org-next-link t]
     ["Previous link" org-previous-link t]
     "--"
     ["Descriptive Links"
      org-toggle-link-display
      :style radio
      :selected org-descriptive-links
      ]
     ["Literal Links"
      org-toggle-link-display
      :style radio
      :selected (not org-descriptive-links)])
    "--"
    ("TODO Lists"
     ["TODO/DONE/-" org-todo t]
     ("Select keyword"
      ["Next keyword" org-shiftright (org-at-heading-p)]
      ["Previous keyword" org-shiftleft (org-at-heading-p)]
      ["Complete Keyword" pcomplete (assq :todo-keyword (org-context))]
      ["Next keyword set" org-shiftcontrolright (and (> (length org-todo-sets) 1) (org-at-heading-p))]
      ["Previous keyword set" org-shiftcontrolright (and (> (length org-todo-sets) 1) (org-at-heading-p))])
     ["Show TODO Tree" org-show-todo-tree :active t :keys "C-c / t"]
     ["Global TODO list" org-todo-list :active t :keys "\\[org-agenda] t"]
     "--"
     ["Enforce dependencies" (customize-variable 'org-enforce-todo-dependencies)
      :selected org-enforce-todo-dependencies :style toggle :active t]
     "Settings for tree at point"
     ["Do Children sequentially" org-toggle-ordered-property :style radio
      :selected (org-entry-get nil "ORDERED")
      :active org-enforce-todo-dependencies :keys "C-c C-x o"]
     ["Do Children parallel" org-toggle-ordered-property :style radio
      :selected (not (org-entry-get nil "ORDERED"))
      :active org-enforce-todo-dependencies :keys "C-c C-x o"]
     "--"
     ["Set Priority" org-priority t]
     ["Priority Up" org-shiftup t]
     ["Priority Down" org-shiftdown t]
     "--"
     ["Get news from all feeds" org-feed-update-all t]
     ["Go to the inbox of a feed..." org-feed-goto-inbox t]
     ["Customize feeds" (customize-variable 'org-feed-alist) t])
    ("TAGS and Properties"
     ["Set Tags" org-set-tags-command (not (org-before-first-heading-p))]
     ["Change tag in region" org-change-tag-in-region (org-region-active-p)]
     "--"
     ["Set property" org-set-property (not (org-before-first-heading-p))]
     ["Column view of properties" org-columns t]
     ["Insert Column View DBlock" org-columns-insert-dblock t])
    ("Dates and Scheduling"
     ["Timestamp" org-timestamp (not (org-before-first-heading-p))]
     ["Timestamp (inactive)" org-timestamp-inactive (not (org-before-first-heading-p))]
     ("Change Date"
      ["1 Day Later" org-shiftright (org-at-timestamp-p 'lax)]
      ["1 Day Earlier" org-shiftleft (org-at-timestamp-p 'lax)]
      ["1 ... Later" org-shiftup (org-at-timestamp-p 'lax)]
      ["1 ... Earlier" org-shiftdown (org-at-timestamp-p 'lax)])
     ["Compute Time Range" org-evaluate-time-range t]
     ["Schedule Item" org-schedule (not (org-before-first-heading-p))]
     ["Deadline" org-deadline (not (org-before-first-heading-p))]
     "--"
     ["Custom time format" org-toggle-timestamp-overlays
      :style radio :selected org-display-custom-times]
     "--"
     ["Goto Calendar" org-goto-calendar t]
     ["Date from Calendar" org-date-from-calendar t]
     "--"
     ["Start/Restart Timer" org-timer-start t]
     ["Pause/Continue Timer" org-timer-pause-or-continue t]
     ["Stop Timer" org-timer-pause-or-continue :active t :keys "C-u C-c C-x ,"]
     ["Insert Timer String" org-timer t]
     ["Insert Timer Item" org-timer-item t])
    ("Logging work"
     ["Clock in" org-clock-in :active t :keys "C-c C-x C-i"]
     ["Switch task" (lambda () (interactive) (org-clock-in '(4))) :active t :keys "C-u C-c C-x C-i"]
     ["Clock out" org-clock-out t]
     ["Clock cancel" org-clock-cancel t]
     "--"
     ["Mark as default task" org-clock-mark-default-task t]
     ["Clock in, mark as default" (lambda () (interactive) (org-clock-in '(16))) :active t :keys "C-u C-u C-c C-x C-i"]
     ["Goto running clock" org-clock-goto t]
     "--"
     ["Display times" org-clock-display t]
     ["Create clock table" org-clock-report t]
     "--"
     ["Record DONE time"
      (progn (setq org-log-done (not org-log-done))
	     (message "Switching to %s will %s record a timestamp"
		      (car org-done-keywords)
		      (if org-log-done "automatically" "not")))
      :style toggle :selected org-log-done])
    "--"
    ["Agenda Command..." org-agenda t]
    ["Set Restriction Lock" org-agenda-set-restriction-lock t]
    ("File List for Agenda")
    ("Special views current file"
     ["TODO Tree"  org-show-todo-tree t]
     ["Check Deadlines" org-check-deadlines t]
     ["Tags/Property tree" org-match-sparse-tree t])
    "--"
    ["Export/Publish..." org-export-dispatch t]
    ("LaTeX"
     ["Org CDLaTeX mode" org-cdlatex-mode :active (require 'cdlatex nil t)
      :style toggle :selected org-cdlatex-mode]
     ["Insert Environment" cdlatex-environment (fboundp 'cdlatex-environment)]
     ["Insert math symbol" cdlatex-math-symbol (fboundp 'cdlatex-math-symbol)]
     ["Modify math symbol" org-cdlatex-math-modify
      (org-inside-LaTeX-fragment-p)]
     ["Insert citation" org-reftex-citation t])
    "--"
    ("Documentation"
     ["Show Version" org-version t]
     ["Info Documentation" org-info t]
     ["Browse Org News" org-browse-news t])
    ("Customize"
     ["Browse Org Group" org-customize t]
     "--"
     ["Expand This Menu" org-create-customize-menu t])
    ["Send bug report" org-submit-bug-report t]
    "--"
    ("Refresh/Reload"
     ["Refresh setup current buffer" org-mode-restart t]
     ["Reload Org (after update)" org-reload t]
     ["Reload Org uncompiled" (org-reload t) :active t :keys "C-u C-c C-x !"])))

(easy-menu-define org-tbl-menu org-mode-map "Org Table menu."
  '("Table"
    ["Align" org-ctrl-c-ctrl-c :active (org-at-table-p)]
    ["Next Field" org-cycle (org-at-table-p)]
    ["Previous Field" org-shifttab (org-at-table-p)]
    ["Next Row" org-return (org-at-table-p)]
    "--"
    ["Blank Field" org-table-blank-field (org-at-table-p)]
    ["Edit Field" org-table-edit-field (org-at-table-p)]
    ["Copy Field from Above" org-table-copy-down (org-at-table-p)]
    "--"
    ("Column"
     ["Move Column Left" org-metaleft (org-at-table-p)]
     ["Move Column Right" org-metaright (org-at-table-p)]
     ["Delete Column" org-shiftmetaleft (org-at-table-p)]
     ["Insert Column" org-shiftmetaright (org-at-table-p)]
     ["Shrink Column" org-table-toggle-column-width (org-at-table-p)])
    ("Row"
     ["Move Row Up" org-metaup (org-at-table-p)]
     ["Move Row Down" org-metadown (org-at-table-p)]
     ["Delete Row" org-shiftmetaup (org-at-table-p)]
     ["Insert Row" org-shiftmetadown (org-at-table-p)]
     ["Sort lines in region" org-table-sort-lines (org-at-table-p)]
     "--"
     ["Insert Hline" org-ctrl-c-minus (org-at-table-p)])
    ("Rectangle"
     ["Copy Rectangle" org-copy-special (org-at-table-p)]
     ["Cut Rectangle" org-cut-special (org-at-table-p)]
     ["Paste Rectangle" org-paste-special (org-at-table-p)]
     ["Fill Rectangle" org-table-wrap-region (org-at-table-p)])
    "--"
    ("Calculate"
     ["Set Column Formula" org-table-eval-formula (org-at-table-p)]
     ["Set Field Formula" (org-table-eval-formula '(4)) :active (org-at-table-p) :keys "C-u C-c ="]
     ["Edit Formulas" org-edit-special (org-at-table-p)]
     "--"
     ["Recalculate line" org-table-recalculate (org-at-table-p)]
     ["Recalculate all" (lambda () (interactive) (org-table-recalculate '(4))) :active (org-at-table-p) :keys "C-u C-c *"]
     ["Iterate all" (lambda () (interactive) (org-table-recalculate '(16))) :active (org-at-table-p) :keys "C-u C-u C-c *"]
     "--"
     ["Toggle Recalculate Mark" org-table-rotate-recalc-marks (org-at-table-p)]
     "--"
     ["Sum Column/Rectangle" org-table-sum
      (or (org-at-table-p) (org-region-active-p))]
     ["Which Column?" org-table-current-column (org-at-table-p)])
    ["Debug Formulas"
     org-table-toggle-formula-debugger
     :style toggle :selected (bound-and-true-p org-table-formula-debug)]
    ["Show Col/Row Numbers"
     org-table-toggle-coordinate-overlays
     :style toggle
     :selected (bound-and-true-p org-table-overlay-coordinates)]
    "--"
    ["Create" org-table-create (not (org-at-table-p))]
    ["Convert Region" org-table-convert-region (not (org-at-table-p 'any))]
    ["Import from File" org-table-import (not (org-at-table-p))]
    ["Export to File" org-table-export (org-at-table-p)]
    "--"
    ["Create/Convert from/to table.el" org-table-create-with-table.el t]
    "--"
    ("Plot"
     ["Ascii plot" orgtbl-ascii-plot :active (org-at-table-p) :keys "C-c \" a"]
     ["Gnuplot" org-plot/gnuplot :active (org-at-table-p) :keys "C-c \" g"])))

(defun org-info (&optional node)
  "Read documentation for Org in the info system.
With optional NODE, go directly to that node."
  (interactive)
  (info (format "(org)%s" (or node ""))))

(defun org-browse-news ()
  "Browse the news for the latest major release."
  (interactive)
  (browse-url "https://orgmode.org/Changes.html"))

(defvar org--warnings nil
  "List of warnings to be added to the bug reports.")
;;;###autoload
(defun org-submit-bug-report ()
  "Submit a bug report on Org via mail.

Don't hesitate to report any problems or inaccurate documentation.

If you don't have setup sending mail from (X)Emacs, please copy the
output buffer into your mail program, as it gives us important
information about your Org version and configuration."
  (interactive)
  (require 'reporter)
  (defvar reporter-prompt-for-summary-p)
  (org-load-modules-maybe)
  (org-require-autoloaded-modules)
  (let ((reporter-prompt-for-summary-p "Bug report subject: "))
    (reporter-submit-bug-report
     "emacs-orgmode@gnu.org"
     (org-version nil 'full)
     (let (list)
       (save-window-excursion
	 (pop-to-buffer-same-window (get-buffer-create "*Warn about privacy*"))
	 (delete-other-windows)
	 (erase-buffer)
	 (insert "You are about to submit a bug report to the Org mailing list.

If your report is about Org installation, please read this section:
https://orgmode.org/org.html#Installation

Please read https://orgmode.org/org.html#Feedback on how to make
a good report, it will help Org contributors fixing your problem.

Search https://lists.gnu.org/archive/html/emacs-orgmode/ to see
if the issue you are about to raise has already been dealt with.

We also would like to add your full Org and Outline configuration
to the bug report.  It will help us debugging the issue.

*HOWEVER*, some variables you have customized may contain private
information.  The names of customers, colleagues, or friends, might
appear in the form of file names, tags, todo states or search strings.
If you answer \"yes\" to the prompt, you might want to check and remove
such private information before sending the email.")
	 (add-text-properties (point-min) (point-max) '(face org-warning))
	 (when (yes-or-no-p "Include your Org configuration and Org warning log ")
	   (mapatoms
	    (lambda (v)
	      (and (boundp v)
		   (string-match "\\`\\(org-\\|outline-\\)" (symbol-name v))
		   (or (and (symbol-value v)
			    (string-match "\\(-hook\\|-function\\)\\'" (symbol-name v)))
                       (eq v 'org--warnings)
		       (and
			(get v 'custom-type) (get v 'standard-value)
			(not (equal (symbol-value v)
			            (eval (car (get v 'standard-value)) t)))))
		   (push v list)))))
	 (kill-buffer (get-buffer "*Warn about privacy*"))
	 list))
     nil nil
     "Remember to cover the basics, that is, what you expected to happen and
what in fact did happen.  You don't know how to make a good report?  See

     https://orgmode.org/manual/Feedback.html#Feedback

Your bug report will be posted to the Org mailing list.
------------------------------------------------------------------------")
    (save-excursion
      (when (re-search-backward "^\\(Subject: \\)Org mode version \\(.*?\\);[ \t]*\\(.*\\)" nil t)
	(replace-match "\\1[BUG] \\3 [\\2]")))))

(defun org-install-agenda-files-menu ()
  "Install agenda file menu."
  (let ((bl (buffer-list)))
    (save-excursion
      (while bl
	(set-buffer (pop bl))
	(when (derived-mode-p 'org-mode) (setq bl nil)))
      (when (derived-mode-p 'org-mode)
	(easy-menu-change
	 '("Org") "File List for Agenda"
	 (append
	  (list
	   ["Edit File List" (org-edit-agenda-file-list) t]
	   ["Add/Move Current File to Front of List" org-agenda-file-to-front t]
	   ["Remove Current File from List" org-remove-file t]
	   ["Cycle through agenda files" org-cycle-agenda-files t]
	   ["Occur in all agenda files" org-occur-in-agenda-files t]
	   "--")
	  (mapcar 'org-file-menu-entry
		  ;; Prevent initialization from failing.
		  (ignore-errors (org-agenda-files t)))))))))

;;;; Documentation

(defun org-require-autoloaded-modules ()
  (interactive)
  (mapc #'require
	'(org-agenda org-archive org-attach org-clock org-colview org-id
		     org-table org-timer)))

;;;###autoload
(defun org-reload (&optional uncompiled)
  "Reload all Org Lisp files.
With prefix arg UNCOMPILED, load the uncompiled versions."
  (interactive "P")
  (require 'loadhist)
  (let* ((org-dir     (org-find-library-dir "org"))
	 (contrib-dir (or (org-find-library-dir "org-contribdir") org-dir))
	 (feature-re "^\\(org\\|ob\\|ox\\|ol\\|oc\\)\\(-.*\\)?")
	 (remove-re (format "\\`%s\\'"
			    (regexp-opt '("org" "org-loaddefs" "org-version"))))
	 (feats (delete-dups
		 (mapcar 'file-name-sans-extension
			 (mapcar 'file-name-nondirectory
				 (delq nil
				       (mapcar 'feature-file
					       features))))))
	 (lfeat (append
		 (sort
		  (setq feats
			(delq nil (mapcar
				   (lambda (f)
				     (if (and (string-match feature-re f)
					      (not (string-match remove-re f)))
					 f nil))
				   feats)))
		  'string-lessp)
		 (list "org-version" "org")))
	 (load-suffixes (if uncompiled (reverse load-suffixes) load-suffixes))
	 load-uncore load-misses)
    (setq load-misses
	  (delq t
		(mapcar (lambda (f)
			  (or (org-load-noerror-mustsuffix (concat org-dir f))
			      (and (string= org-dir contrib-dir)
				   (org-load-noerror-mustsuffix (concat contrib-dir f)))
			      (and (org-load-noerror-mustsuffix (concat (org-find-library-dir f) f))
				   (push f load-uncore)
				   t)
			      f))
			lfeat)))
    (when load-uncore
      (message "The following feature%s found in load-path, please check if that's correct:\n%s"
	       (if (> (length load-uncore) 1) "s were" " was")
               (reverse load-uncore)))
    (if load-misses
	(message "Some error occurred while reloading Org feature%s\n%s\nPlease check *Messages*!\n%s"
		 (if (> (length load-misses) 1) "s" "") load-misses (org-version nil 'full))
      (message "Successfully reloaded Org\n%s" (org-version nil 'full)))))

;;;###autoload
(defun org-customize ()
  "Call the customize function with org as argument."
  (interactive)
  (org-load-modules-maybe)
  (org-require-autoloaded-modules)
  (customize-browse 'org))

(defun org-create-customize-menu ()
  "Create a full customization menu for Org mode, insert it into the menu."
  (interactive)
  (org-load-modules-maybe)
  (org-require-autoloaded-modules)
  (easy-menu-change
   '("Org") "Customize"
   `(["Browse Org group" org-customize t]
     "--"
     ,(customize-menu-create 'org)
     ["Set" Custom-set t]
     ["Save" Custom-save t]
     ["Reset to Current" Custom-reset-current t]
     ["Reset to Saved" Custom-reset-saved t]
     ["Reset to Standard Settings" Custom-reset-standard t]))
  (message "\"Org\"-menu now contains full customization menu"))

;;;; Miscellaneous stuff

;;; Generally useful functions

(defun org-in-clocktable-p ()
  "Check if the cursor is in a clocktable."
  (let ((pos (point)) start)
    (save-excursion
      (end-of-line 1)
      (and (re-search-backward "^[ \t]*#\\+BEGIN:[ \t]+clocktable" nil t)
	   (setq start (match-beginning 0))
	   (re-search-forward "^[ \t]*#\\+END:.*" nil t)
	   (>= (match-end 0) pos)
	   start))))

(defun org-in-verbatim-emphasis ()
  (save-match-data
    (and (org-in-regexp org-verbatim-re 2)
	 (>= (point) (match-beginning 3))
	 (<= (point) (match-end 4)))))

(defun org-goto-marker-or-bmk (marker &optional bookmark)
  "Go to MARKER, widen if necessary.  When marker is not live, try BOOKMARK."
  (if (and marker (marker-buffer marker)
	   (buffer-live-p (marker-buffer marker)))
      (progn
	(pop-to-buffer-same-window (marker-buffer marker))
	(when (or (> marker (point-max)) (< marker (point-min)))
	  (widen))
	(goto-char marker)
	(org-fold-show-context 'org-goto))
    (if bookmark
	(bookmark-jump bookmark)
      (error "Cannot find location"))))

(defun org-quote-csv-field (s)
  "Quote field for inclusion in CSV material."
  (if (string-match "[\",]" s)
      (concat "\"" (mapconcat 'identity (split-string s "\"") "\"\"") "\"")
    s))

(defun org-force-self-insert (N)
  "Needed to enforce self-insert under remapping."
  (interactive "p")
  (self-insert-command N))

(defun org-quote-vert (s)
  "Replace \"|\" with \"\\vert\"."
  (while (string-match "|" s)
    (setq s (replace-match "\\vert" t t s)))
  s)

(defun org-in-src-block-p (&optional inside element)
  "Return t when point is at a source block element.
When INSIDE is non-nil, return t only when point is between #+BEGIN_SRC
and #+END_SRC lines.

Note that affiliated keywords and blank lines after are considered a
part of a source block.

When ELEMENT is provided, it is considered to be element at point."
  (save-match-data (setq element (or element (org-element-at-point))))
  (when (org-element-type-p element 'src-block)
    (or (not inside)
        (not (or (<= (line-beginning-position)
                  (org-element-post-affiliated element))
               (>= (line-end-position)
                  (org-with-point-at (org-element-end element)
                    (skip-chars-backward " \t\n\r")
                    (point))))))))

(defun org-context ()
  "Return a list of contexts of the current cursor position.
If several contexts apply, all are returned.
Each context entry is a list with a symbol naming the context, and
two positions indicating start and end of the context.  Possible
contexts are:

:headline         anywhere in a headline
:headline-stars   on the leading stars in a headline
:todo-keyword     on a TODO keyword (including DONE) in a headline
:tags             on the TAGS in a headline
:priority         on the priority cookie in a headline
:item             on the first line of a plain list item
:item-bullet      on the bullet/number of a plain list item
:checkbox         on the checkbox in a plain list item
:table            in an Org table
:table-special    on a special filed in a table
:table-table      in a table.el table
:clocktable       in a clocktable
:src-block        in a source block
:link             on a hyperlink
:keyword          on a keyword: SCHEDULED, DEADLINE, CLOSE, COMMENT.
:latex-fragment   on a LaTeX fragment
:latex-preview    on a LaTeX fragment with overlaid preview image

This function expects the position to be visible because it uses font-lock
faces as a help to recognize the following contexts: :table-special, :link,
and :keyword."
  (let* ((f (get-text-property (point) 'face))
	 (faces (if (listp f) f (list f)))
	 (case-fold-search t)
	 (p (point)) clist o)
    ;; First the large context
    (cond
     ((org-at-heading-p)
      (push (list :headline (line-beginning-position)
                  (line-end-position))
            clist)
      (when (progn
	      (forward-line 0)
	      (looking-at org-todo-line-tags-regexp))
	(push (org-point-in-group p 1 :headline-stars) clist)
	(push (org-point-in-group p 2 :todo-keyword) clist)
	(push (org-point-in-group p 4 :tags) clist))
      (goto-char p)
      (skip-chars-backward "^[\n\r \t") (or (bobp) (backward-char 1))
      (when (looking-at "\\[#[A-Z0-9]\\]")
	(push (org-point-in-group p 0 :priority) clist)))

     ((org-at-item-p)
      (push (org-point-in-group p 2 :item-bullet) clist)
      (push (list :item (line-beginning-position)
		  (save-excursion (org-end-of-item) (point)))
	    clist)
      (and (org-at-item-checkbox-p)
	   (push (org-point-in-group p 0 :checkbox) clist)))

     ((org-at-table-p)
      (push (list :table (org-table-begin) (org-table-end)) clist)
      (when (memq 'org-formula faces)
	(push (list :table-special
		    (previous-single-property-change p 'face)
		    (next-single-property-change p 'face))
	      clist)))
     ((org-at-table-p 'any)
      (push (list :table-table) clist)))
    (goto-char p)

    (let ((case-fold-search t))
      ;; New the "medium" contexts: clocktables, source blocks
      (cond ((org-in-clocktable-p)
	     (push (list :clocktable
			 (and (or (looking-at "[ \t]*\\(#\\+BEGIN: clocktable\\)")
				  (re-search-backward "[ \t]*\\(#+BEGIN: clocktable\\)" nil t))
			      (match-beginning 1))
			 (and (re-search-forward "[ \t]*#\\+END:?" nil t)
			      (match-end 0)))
		   clist))
	    ((org-in-src-block-p)
	     (push (list :src-block
			 (and (or (looking-at "[ \t]*\\(#\\+BEGIN_SRC\\)")
				  (re-search-backward "[ \t]*\\(#+BEGIN_SRC\\)" nil t))
			      (match-beginning 1))
			 (and (search-forward "#+END_SRC" nil t)
			      (match-beginning 0)))
		   clist))))
    (goto-char p)

    ;; Now the small context
    (cond
     ((org-at-timestamp-p)
      (push (org-point-in-group p 0 :timestamp) clist))
     ((memq 'org-link faces)
      (push (list :link
		  (previous-single-property-change p 'face)
		  (next-single-property-change p 'face))
	    clist))
     ((memq 'org-special-keyword faces)
      (push (list :keyword
		  (previous-single-property-change p 'face)
		  (next-single-property-change p 'face))
	    clist))
     ((setq o (cl-some
	       (lambda (o)
		 (and (eq (overlay-get o 'org-overlay-type) 'org-latex-overlay)
		      o))
	       (overlays-at (point))))
      (push (list :latex-fragment
		  (overlay-start o) (overlay-end o))
	    clist)
      (push (list :latex-preview
		  (overlay-start o) (overlay-end o))
	    clist))
     ((org-inside-LaTeX-fragment-p)
      ;; FIXME: positions wrong.
      (push (list :latex-fragment (point) (point)) clist)))

    (setq clist (nreverse (delq nil clist)))
    clist))

(defun org-between-regexps-p (start-re end-re &optional lim-up lim-down)
  "Non-nil when point is between matches of START-RE and END-RE.

Also return a non-nil value when point is on one of the matches.

Optional arguments LIM-UP and LIM-DOWN bound the search; they are
buffer positions.  Default values are the positions of headlines
surrounding the point.

The functions returns a cons cell whose car (resp. cdr) is the
position before START-RE (resp. after END-RE)."
  (save-match-data
    (let ((pos (point))
	  (limit-up (or lim-up (save-excursion (outline-previous-heading))))
	  (limit-down (or lim-down (save-excursion (outline-next-heading))))
	  beg end)
      (save-excursion
	;; Point is on a block when on START-RE or if START-RE can be
	;; found before it...
	(and (or (org-in-regexp start-re)
		 (re-search-backward start-re limit-up t))
	     (setq beg (match-beginning 0))
	     ;; ... and END-RE after it...
	     (goto-char (match-end 0))
	     (re-search-forward end-re limit-down t)
	     (> (setq end (match-end 0)) pos)
	     ;; ... without another START-RE in-between.
	     (goto-char (match-beginning 0))
	     (not (re-search-backward start-re (1+ beg) t))
	     ;; Return value.
	     (cons beg end))))))

(defun org-in-block-p (names)
  "Non-nil when point belongs to a block whose name belongs to NAMES.

NAMES is a list of strings containing names of blocks.

Return first block name matched, or nil.  Beware that in case of
nested blocks, the returned name may not belong to the closest
block from point."
  (save-match-data
    (catch 'exit
      (let ((case-fold-search t)
	    (lim-up (save-excursion (outline-previous-heading)))
	    (lim-down (save-excursion (outline-next-heading))))
	(dolist (name names)
	  (let ((n (regexp-quote name)))
	    (when (org-between-regexps-p
		   (concat "^[ \t]*#\\+begin_" n)
		   (concat "^[ \t]*#\\+end_" n)
		   lim-up lim-down)
	      (throw 'exit n)))))
      nil)))

;; Defined in org-agenda.el
(defvar org-agenda-restrict)
(defvar org-agenda-restrict-begin)
(defvar org-agenda-restrict-end)
(defun org-occur-in-agenda-files (regexp &optional _nlines)
  "Call `multi-occur' with buffers for all agenda files."
  (interactive "sOrg-files matching: ")
  (let* ((files (org-agenda-files))
	 (tnames (mapcar #'file-truename files))
	 (extra org-agenda-text-search-extra-files)
         (narrows nil))
    (when (and (eq (car extra) 'agenda-archives)
               (not org-agenda-restrict))
      (setq extra (cdr extra))
      (setq files (org-add-archive-files files)))
    (unless org-agenda-restrict
      (dolist (f extra)
        (unless (member (file-truename f) tnames)
	  (unless (member f files) (setq files (append files (list f))))
	  (setq tnames (append tnames (list (file-truename f)))))))
    (multi-occur
     (mapcar (lambda (x)
	       (with-current-buffer
		   ;; FIXME: Why not just (find-file-noselect x)?
		   ;; Is it to avoid the "revert buffer" prompt?
		   (or (get-file-buffer x) (find-file-noselect x))
                 (if (eq (current-buffer) org-agenda-restrict)
		     (progn
                       ;; Save the narrowing state.
                       (push (list (current-buffer) (point-min) (point-max))
                             narrows)
                       (widen)
                       (narrow-to-region org-agenda-restrict-begin
				         org-agenda-restrict-end))
		   (widen))
		 (current-buffer)))
	     files)
     regexp)
    ;; Restore the narrowing.
    (dolist (narrow narrows)
      (with-current-buffer (car narrow)
        (widen)
        (narrow-to-region (nth 1 narrow) (nth 2 narrow))))))

(add-hook 'occur-mode-find-occurrence-hook
	  (lambda () (when (derived-mode-p 'org-mode) (org-fold-reveal))))

(defun org-occur-link-in-agenda-files ()
  "Create a link and search for it in the agendas.
The link is not stored in `org-stored-links', it is just created
for the search purpose."
  (interactive)
  (let ((link (condition-case nil
		  (org-store-link nil)
		(error "Unable to create a link to here"))))
    (org-occur-in-agenda-files (regexp-quote link))))

(defun org-back-over-empty-lines ()
  "Move backwards over whitespace, to the beginning of the first empty line.
Returns the number of empty lines passed."
  (let ((pos (point)))
    (if (cdr (assq 'heading org-blank-before-new-entry))
	(skip-chars-backward " \t\n\r")
      (unless (eobp)
	(forward-line -1)))
    (forward-line 1)
    (goto-char (min (point) pos))
    (count-lines (point) pos)))

;;; TODO: Only called once, from ox-odt which should probably use
;;; org-export-inline-image-p or something.
(defun org-file-image-p (file)
  "Return non-nil if FILE is an image."
  (save-match-data
    (string-match (image-file-name-regexp) file)))

(defun org-get-cursor-date (&optional with-time)
  "Return the date at cursor in as a time.
This works in the calendar and in the agenda, anywhere else it just
returns the current time.
If WITH-TIME is non-nil, returns the time of the event at point (in
the agenda) or the current time of the day; otherwise returns the
earliest time on the cursor date that Org treats as that date
(bearing in mind `org-extend-today-until')."
  (let (date day defd tp hod mod)
    (when with-time
      (setq tp (get-text-property (point) 'time))
      (when (and tp (string-match "\\([0-2]?[0-9]\\):\\([0-5][0-9]\\)" tp))
	(setq hod (string-to-number (match-string 1 tp))
	      mod (string-to-number (match-string 2 tp))))
      (or tp (let ((now (decode-time)))
	       (setq hod (nth 2 now)
		     mod (nth 1 now)))))
    (cond
     ((eq major-mode 'calendar-mode)
      (setq date (calendar-cursor-to-date)
	    defd (org-encode-time 0 (or mod 0) (or hod org-extend-today-until)
                                  (nth 1 date) (nth 0 date) (nth 2 date))))
     ((eq major-mode 'org-agenda-mode)
      (setq day (get-text-property (point) 'day))
      (when day
	(setq date (calendar-gregorian-from-absolute day)
	      defd (org-encode-time 0 (or mod 0) (or hod org-extend-today-until)
                                    (nth 1 date) (nth 0 date) (nth 2 date))))))
    (or defd (current-time))))

(defun org-mark-subtree (&optional up)
  "Mark the current subtree.
This puts point at the start of the current subtree, and mark at
the end.  If a numeric prefix UP is given, move up into the
hierarchy of headlines by UP levels before marking the subtree."
  (interactive "P")
  (org-with-limited-levels
   (cond ((org-at-heading-p) (forward-line 0))
	 ((org-before-first-heading-p) (user-error "Not in a subtree"))
	 (t (outline-previous-visible-heading 1))))
  (when up (while (and (> up 0) (org-up-heading-safe)) (cl-decf up)))
  (if (called-interactively-p 'any)
      (call-interactively 'org-mark-element)
    (org-mark-element)))

;;; Indentation

(defun org--at-headline-data-p (&optional beg element)
  "Return non-nil when `point' or BEG is inside headline metadata.

Metadata is planning line, properties drawer, logbook drawer right
after property drawer, or clock log line immediately following
properties drawer/planning line/ heading.

Optional argument ELEMENT contains element at BEG."
  (org-with-wide-buffer
   (when beg (goto-char beg))
   (setq element (or element (org-element-at-point)))
   (if (or (org-element-type-p element 'headline)
           (not (org-element-lineage element '(headline inlinetask))))
       nil ; Not inside heading.
     ;; Skip to top-level parent in section.
     (while (not (org-element-type-p (org-element-parent element) 'section))
       (setq element (org-element-parent element)))
     (pcase (org-element-type element)
       ((or `planning `property-drawer)
        t)
       (`drawer
        ;; LOGBOOK drawer with appropriate name.
        (equal
         (org-log-into-drawer)
         (org-element-property :drawer-name element)))
       (`clock
        ;; Previous element must be headline metadata or headline.
        (goto-char (1- (org-element-begin element)))
        (or (org-at-heading-p)
            (org--at-headline-data-p)))))))

(defvar org-element-greater-elements)
(defun org--get-expected-indentation (element contentsp)
  "Expected indentation column for current line, according to ELEMENT.
ELEMENT is an element containing point.  CONTENTSP is non-nil
when indentation is to be computed according to contents of
ELEMENT."
  (let ((type (org-element-type element))
	(start (org-element-begin element))
	(post-affiliated (org-element-post-affiliated element)))
    (org-with-wide-buffer
     (cond
      (contentsp
       (cl-case type
	 ((diary-sexp footnote-definition) 0)
         (section
          (org--get-expected-indentation
           (org-element-parent element)
           t))
	 ((headline inlinetask nil)
	  (if (not org-adapt-indentation) 0
	    (let ((level (org-current-level)))
	      (if level (1+ level) 0))))
	 ((item plain-list) (org-list-item-body-column post-affiliated))
	 (t
	  (goto-char start)
	  (current-indentation))))
      ((memq type '(headline inlinetask nil))
       (if (org-match-line "[ \t]*$")
	   (org--get-expected-indentation element t)
	 0))
      ((memq type '(diary-sexp footnote-definition)) 0)
      ;; First paragraph of a footnote definition or an item.
      ;; Indent like parent.
      ((< (line-beginning-position) start)
       (org--get-expected-indentation
	(org-element-parent element) t))
      ;; At first line: indent according to previous sibling, if any,
      ;; ignoring footnote definitions and inline tasks, or parent's
      ;; contents.  If `org-adapt-indentation' is `headline-data', ignore
      ;; previous headline data siblings.
      ((= (line-beginning-position) start)
       (catch 'exit
	 (while t
	   (if (= (point-min) start) (throw 'exit 0)
	     (goto-char (1- start))
	     (let* ((previous (org-element-at-point))
		    (parent previous))
	       (while (and parent (<= (org-element-end parent) start))
		 (setq previous parent
		       parent (org-element-parent parent)))
	       (cond
		((not previous) (throw 'exit 0))
		((> (org-element-end previous) start)
		 (throw 'exit (org--get-expected-indentation previous t)))
		((org-element-type-p
                  previous '(footnote-definition inlinetask))
		 (setq start (org-element-begin previous)))
                ;; Do not indent like previous when the previous
                ;; element is headline data and `org-adapt-indentation'
                ;; is set to `headline-data'.
                ((and (eq 'headline-data org-adapt-indentation)
                      (not (org--at-headline-data-p start element))
                      (or (org-at-heading-p)
                          (org--at-headline-data-p (1- start) previous)))
                 (throw 'exit 0))
		(t (goto-char (org-element-begin previous))
		   (throw 'exit
			  (if (bolp) (current-indentation)
			    ;; At first paragraph in an item or
			    ;; a footnote definition.
			    (org--get-expected-indentation
			     (org-element-parent previous) t))))))))))
      ;; Otherwise, move to the first non-blank line above.
      (t
       (forward-line 0)
       (let ((pos (point)))
	 (skip-chars-backward " \r\t\n")
	 (cond
	  ;; Two blank lines end a footnote definition or a plain
	  ;; list.  When we indent an empty line after them, the
	  ;; containing list or footnote definition is over, so it
	  ;; qualifies as a previous sibling.  Therefore, we indent
	  ;; like its first line.
	  ((and (memq type '(footnote-definition plain-list))
		(> (count-lines (point) pos) 2))
	   (goto-char start)
	   (current-indentation))
	  ;; Line above is the first one of a paragraph at the
	  ;; beginning of an item or a footnote definition.  Indent
	  ;; like parent.
	  ((< (line-beginning-position) start)
	   (org--get-expected-indentation
	    (org-element-parent element) t))
	  ;; Line above is the beginning of an element, i.e., point
	  ;; was originally on the blank lines between element's start
	  ;; and contents.
	  ((= (line-beginning-position) post-affiliated)
	   (org--get-expected-indentation element t))
	  ;; POS is after contents in a greater element.  Indent like
	  ;; the beginning of the element.
	  ((and (memq type org-element-greater-elements)
		(let ((cend (org-element-contents-end element)))
		  (and cend (<= cend pos))))
	   ;; As a special case, if point is at the end of a footnote
	   ;; definition or an item, indent like the very last element
	   ;; within.  If that last element is an item, indent like
	   ;; its contents.
	   (if (memq type '(footnote-definition item plain-list))
	       (let ((last (org-element-at-point)))
		 (goto-char pos)
		 (org--get-expected-indentation
		  last (org-element-type-p last 'item)))
	     (goto-char start)
	     (current-indentation)))
	  ;; In any other case, indent like the current line.
	  (t (current-indentation)))))))))

(defun org--align-node-property ()
  "Align node property at point.
Alignment is done according to `org-property-format', which see."
  (when (save-excursion
	  (forward-line 0)
	  (looking-at org-property-re))
    (org-combine-change-calls (match-beginning 0) (match-end 0)
      (let ((newtext (concat (match-string 4)
	                     (org-trim
	                      (format org-property-format (match-string 1) (match-string 3))))))
        ;; Do not use `replace-match' here as we want to inherit folding
        ;; properties if inside fold.
        (delete-region (match-beginning 0) (match-end 0))
        (insert-and-inherit newtext)))))

(defun org-indent-line ()
  "Indent line depending on context.

Indentation is done according to the following rules:

  - Footnote definitions, diary sexps, headlines and inline tasks
    have to start at column 0.

  - On the very first line of an element, consider, in order, the
    next rules until one matches:

    1. If there's a sibling element before, ignoring footnote
       definitions and inline tasks, indent like its first line.

    2. If element has a parent, indent like its contents.  More
       precisely, if parent is an item, indent after the bullet.
       Else, indent like parent's first line.

    3. Otherwise, indent relatively to current level, if
       `org-adapt-indentation' is t, or to left margin.

  - On a blank line at the end of an element, indent according to
    the type of the element.  More precisely

    1. If element is a plain list, an item, or a footnote
       definition, indent like the very last element within.

    2. If element is a paragraph, indent like its last non blank
       line.

    3. Otherwise, indent like its very first line.

  - In the code part of a source block, use language major mode
    to indent current line if `org-src-tab-acts-natively' is
    non-nil.  If it is nil, do nothing.

  - Otherwise, indent like the first non-blank line above.

The function doesn't indent an item as it could break the whole
list structure.  Instead, use \\<org-mode-map>`\\[org-shiftmetaleft]' or \
`\\[org-shiftmetaright]'.

Also align node properties according to `org-property-format'."
  (interactive)
  (let* ((element (save-excursion (forward-line 0) (org-element-at-point-no-context)))
	 (type (org-element-type element)))
    (unless (or (org-at-heading-p) ; headline has no indent ever.
                ;; Do not indent first element after headline data.
                (and (eq org-adapt-indentation 'headline-data)
                     (not (org--at-headline-data-p nil element))
                     ;; Not at headline data and previous is headline data/headline.
                     (or (memq type '(headline inlinetask)) ; blank lines after heading
                         (save-excursion
                           (goto-char (1- (org-element-begin element)))
                           (or (org-at-heading-p)
                               (org--at-headline-data-p))))))
      (cond ((and (memq type '(plain-list item))
		  (= (line-beginning-position)
		     (org-element-post-affiliated element)))
	     nil)
	    ((and (eq type 'latex-environment)
		  (>= (point) (org-element-post-affiliated element))
		  (< (point)
		     (org-with-point-at (org-element-end element)
		       (skip-chars-backward " \t\n")
		       (line-beginning-position 2))))
	     nil)
	    ((and (eq type 'src-block)
		  org-src-tab-acts-natively
		  (> (line-beginning-position)
		     (org-element-post-affiliated element))
		  (< (line-beginning-position)
		     (org-with-point-at (org-element-end element)
		       (skip-chars-backward " \t\n")
		       (line-beginning-position))))
             (let ((block-content-ind
                    (when (not (org-src-preserve-indentation-p element))
                      (org-with-point-at (org-element-property :begin element)
                        (+ (org-current-text-indentation)
                           org-edit-src-content-indentation)))))
               (org-babel-do-key-sequence-in-edit-buffer (kbd "TAB"))
               (when (and block-content-ind (looking-at-p "^$"))
                 (indent-line-to block-content-ind))))
	    (t
	     (let ((column (org--get-expected-indentation element nil)))
	       ;; Preserve current column.
	       (if (<= (current-column) (current-indentation))
		   (indent-line-to column)
		 (save-excursion (indent-line-to column))))
	     ;; Align node property.  Also preserve current column.
	     (when (eq type 'node-property)
	       (let ((column (current-column)))
		 (org--align-node-property)
		 (org-move-to-column column))))))))

(defun org-indent-region (start end)
  "Indent each non-blank line in the region.
Called from a program, START and END specify the region to
indent.  The function will not indent contents of example blocks,
verse blocks and export blocks as leading white spaces are
assumed to be significant there."
  (interactive "r")
  (save-excursion
    (goto-char start)
    (skip-chars-forward " \r\t\n")
    (unless (eobp) (forward-line 0))
    (let ((indent-to
	   (lambda (ind pos)
	     ;; Set IND as indentation for all lines between point and
	     ;; POS.  Blank lines are ignored.  Leave point after POS
	     ;; once done.
	     (let ((limit (copy-marker pos)))
	       (while (< (point) limit)
		 (unless (looking-at-p "[ \t]*$") (indent-line-to ind))
		 (forward-line))
	       (set-marker limit nil))))
	  (end (copy-marker end)))
      (while (< (point) end)
	(if (or (looking-at-p " \r\t\n") (org-at-heading-p)) (forward-line)
	  (let* ((element (org-element-at-point))
		 (type (org-element-type element))
		 (element-end (copy-marker (org-element-end element)))
		 (ind (org--get-expected-indentation element nil)))
	    (cond
	     ;; Element indented as a single block.  Example blocks
	     ;; preserving indentation are a special case since the
	     ;; "contents" must not be indented whereas the block
	     ;; boundaries can.
	     ((or (memq type '(export-block latex-environment))
		  (and (eq type 'example-block)
		       (not (org-src-preserve-indentation-p element))))
	      (let ((offset (- ind (current-indentation))))
		(unless (zerop offset)
		  (indent-rigidly (org-element-begin element)
				  (org-element-end element)
				  offset)))
	      (goto-char element-end))
	     ;; Elements indented line wise.  Be sure to exclude
	     ;; example blocks (preserving indentation) and source
	     ;; blocks from this category as they are treated
	     ;; specially later.
	     ((or (memq type '(paragraph table table-row))
		  (not (or (org-element-contents-begin element)
			 (memq type '(example-block src-block)))))
	      (when (eq type 'node-property)
		(org--align-node-property)
		(forward-line 0))
	      (funcall indent-to ind (min element-end end)))
	     ;; Elements consisting of three parts: before the
	     ;; contents, the contents, and after the contents.  The
	     ;; contents are treated specially, according to the
	     ;; element type, or not indented at all.  Other parts are
	     ;; indented as a single block.
	     (t
	      (let* ((post (copy-marker
			    (org-element-post-affiliated element)))
		     (cbeg
		      (copy-marker
		       (cond
			((not (org-element-contents-begin element))
			 ;; Fake contents for source blocks.
			 (org-with-wide-buffer
			  (goto-char post)
			  (line-beginning-position 2)))
			((memq type '(footnote-definition item plain-list))
			 ;; Contents in these elements could start on
			 ;; the same line as the beginning of the
			 ;; element.  Make sure we start indenting
			 ;; from the second line.
			 (org-with-wide-buffer
			  (goto-char post)
			  (end-of-line)
			  (skip-chars-forward " \r\t\n")
			  (if (eobp) (point) (line-beginning-position))))
			(t (org-element-contents-begin element)))))
		     (cend (copy-marker
			    (or (org-element-contents-end element)
				;; Fake contents for source blocks.
				(org-with-wide-buffer
				 (goto-char element-end)
				 (skip-chars-backward " \r\t\n")
				 (line-beginning-position)))
			    t)))
		;; Do not change items indentation individually as it
		;; might break the list as a whole.  On the other
		;; hand, when at a plain list, indent it as a whole.
		(cond ((eq type 'plain-list)
		       (let ((offset (- ind (org-current-text-indentation))))
			 (unless (zerop offset)
			   (indent-rigidly (org-element-begin element)
					   (org-element-end element)
					   offset))
			 (goto-char cbeg)))
		      ((eq type 'item) (goto-char cbeg))
		      (t (funcall indent-to ind (min cbeg end))))
		(when (< (point) end)
		  (cl-case type
		    ((example-block verse-block))
		    (src-block
		     ;; In a source block, indent source code
		     ;; according to language major mode, but only if
		     ;; `org-src-tab-acts-natively' is non-nil.
		     (when (and (< (point) end) org-src-tab-acts-natively)
		       (ignore-errors
			 (org-babel-do-in-edit-buffer
			  (indent-region (point-min) (point-max))))))
		    (t (org-indent-region (point) (min cend end))))
		  (goto-char (min cend end))
		  (when (< (point) end)
		    (funcall indent-to ind (min element-end end))))
		(set-marker post nil)
		(set-marker cbeg nil)
		(set-marker cend nil))))
	    (set-marker element-end nil))))
      (set-marker end nil))))

(defun org-indent-drawer ()
  "Indent the drawer at point.
Signal an error when not at a drawer."
  (interactive)
  (let ((element (org-element-at-point)))
    (unless (org-element-type-p element '(drawer property-drawer))
      (user-error "Not at a drawer"))
    (org-with-wide-buffer
     (org-indent-region (org-element-begin element)
			(org-element-end element))))
  (message "Drawer at point indented"))

(defun org-indent-block ()
  "Indent the block at point.
Signal an error when not at a block."
  (interactive)
  (let ((element (org-element-at-point)))
    (unless (org-element-type-p
             element
	     '(comment-block center-block dynamic-block example-block
			     export-block quote-block special-block
			     src-block verse-block))
      (user-error "Not at a block"))
    (org-with-wide-buffer
     (org-indent-region (org-element-begin element)
			(org-element-end element))))
  (message "Block at point indented"))


;;; Filling

;; We use our own fill-paragraph and auto-fill functions.

;; `org-fill-paragraph' relies on adaptive filling and context
;; checking.  Appropriate `fill-prefix' is computed with
;; `org-adaptive-fill-function'.

;; `org-auto-fill-function' takes care of auto-filling.  It calls
;; `do-auto-fill' only on valid areas with `fill-prefix' shadowed with
;; `org-adaptive-fill-function' value.  Internally,
;; `org-comment-line-break-function' breaks the line.

;; `org-setup-filling' installs filling and auto-filling related
;; variables during `org-mode' initialization.

(defvar org--single-lines-list-is-paragraph) ; defined later

(defun org-setup-filling ()
  (require 'org-element)
  ;; Prevent auto-fill from inserting unwanted new items.
  (setq-local fill-nobreak-predicate
              (org-uniquify
               (append fill-nobreak-predicate
                       '(org-fill-line-break-nobreak-p
                         org-fill-n-macro-as-item-nobreak-p
                         org-fill-paragraph-with-timestamp-nobreak-p))))
  (let ((paragraph-ending (substring org-element-paragraph-separate 1)))
    (setq-local paragraph-start paragraph-ending)
    (setq-local paragraph-separate paragraph-ending))
  (setq-local fill-paragraph-function 'org-fill-paragraph)
  (setq-local fill-forward-paragraph-function
              (lambda (&optional arg)
                (let ((org--single-lines-list-is-paragraph nil))
                  (org-forward-paragraph arg))))
  (setq-local auto-fill-inhibit-regexp nil)
  (setq-local adaptive-fill-function 'org-adaptive-fill-function)
  (setq-local normal-auto-fill-function 'org-auto-fill-function)
  (setq-local comment-line-break-function 'org-comment-line-break-function))

(defun org-fill-line-break-nobreak-p ()
  "Non-nil when a new line at point would create an Org line break."
  (save-excursion
    (skip-chars-backward " \t")
    (skip-chars-backward "\\\\")
    (looking-at "\\\\\\\\\\($\\|[^\\]\\)")))

(defun org-fill-paragraph-with-timestamp-nobreak-p ()
  "Non-nil when a new line at point would split a timestamp."
  (and (org-at-timestamp-p 'lax)
       (not (looking-at org-ts-regexp-both))))

(defun org-fill-n-macro-as-item-nobreak-p ()
  "Non-nil when a new line at point would create a new list."
  ;; During export, a "n" macro followed by a dot or a closing
  ;; parenthesis can end up being parsed as a new list item.
  (looking-at-p "[ \t]*{{{n\\(?:([^\n)]*)\\)?}}}[.)]\\(?:$\\| \\)"))

(defun org-adaptive-fill-function ()
  "Compute a fill prefix for the current line.
Return fill prefix, as a string, or nil if current line isn't
meant to be filled.  For convenience, if `adaptive-fill-regexp'
matches in paragraphs or comments, use it."
  (org-with-wide-buffer
   (unless (org-at-heading-p)
     (let* ((p (line-beginning-position))
	    (element (save-excursion
		       (forward-line 0)
		       (org-element-at-point)))
	    (type (org-element-type element))
	    (post-affiliated (org-element-post-affiliated element)))
       (unless (< p post-affiliated)
	 (cl-case type
	   (comment
	    (save-excursion
	      (forward-line 0)
	      (looking-at "[ \t]*")
	      (concat (match-string 0) "# ")))
	   (footnote-definition "")
	   ((item plain-list)
	    (make-string (org-list-item-body-column post-affiliated) ?\s))
	   (paragraph
	    ;; Fill prefix is usually the same as the current line,
	    ;; unless the paragraph is at the beginning of an item.
	    (let ((parent (org-element-parent element)))
	      (save-excursion
		(forward-line 0)
		(cond ((org-element-type-p parent 'item)
		       (make-string (org-list-item-body-column
				     (org-element-begin parent))
				    ?\s))
		      ((and adaptive-fill-regexp
			    ;; Locally disable
			    ;; `adaptive-fill-function' to let
			    ;; `fill-context-prefix' handle
			    ;; `adaptive-fill-regexp' variable.
			    (let (adaptive-fill-function)
			      (fill-context-prefix
			       post-affiliated
			       (org-element-end element)))))
		      ((looking-at "[ \t]+") (match-string 0))
		      (t  "")))))
	   (comment-block
	    ;; Only fill contents if P is within block boundaries.
	    (let* ((cbeg (save-excursion (goto-char post-affiliated)
					 (forward-line)
					 (point)))
		   (cend (save-excursion
			   (goto-char (org-element-end element))
			   (skip-chars-backward " \r\t\n")
			   (line-beginning-position))))
	      (when (and (>= p cbeg) (< p cend))
		(if (save-excursion (forward-line 0) (looking-at "[ \t]+"))
		    (match-string 0)
		  ""))))))))))

(defun org-fill-element (&optional justify)
  "Fill element at point, when applicable.

This function only applies to comment blocks, comments, example
blocks and paragraphs.  Also, as a special case, re-align table
when point is at one.

If JUSTIFY is non-nil (interactively, with prefix argument),
justify as well.  If `sentence-end-double-space' is non-nil, then
period followed by one space does not end a sentence, so don't
break a line there.  The variable `fill-column' controls the
width for filling.

For convenience, when point is at a plain list, an item or
a footnote definition, try to fill the first paragraph within."
  (with-syntax-table org-mode-transpose-word-syntax-table
    ;; Move to end of line in order to get the first paragraph within
    ;; a plain list or a footnote definition.
    (let ((element (save-excursion (end-of-line) (org-element-at-point))))
      ;; First check if point is in a blank line at the beginning of
      ;; the buffer.  In that case, ignore filling.
      (cl-case (org-element-type element)
	;; Use major mode filling function is source blocks.
        (src-block
         (let ((regionp (region-active-p)))
           (org-babel-do-in-edit-buffer
            ;; `org-babel-do-in-edit-buffer' will preserve region if it
            ;; is within src block contents.  Otherwise, the region
            ;; crosses src block boundaries.  We re-fill the whole src
            ;; block in such scenario.
            (when (and regionp (not (region-active-p)))
              (push-mark (point-min))
              (goto-char (point-max))
              (setq mark-active t))
            (funcall-interactively #'fill-paragraph justify 'region))))
	;; Align Org tables, leave table.el tables as-is.
	(table-row (org-table-align) t)
	(table
	 (when (eq (org-element-property :type element) 'org)
	   (save-excursion
	     (goto-char (org-element-post-affiliated element))
	     (org-table-align)))
	 t)
	(paragraph
	 ;; Paragraphs may contain `line-break' type objects.
	 (let ((beg (max (point-min)
			 (org-element-contents-begin element)))
	       (end (min (point-max)
			 (org-element-contents-end element))))
	   ;; Do nothing if point is at an affiliated keyword.
	   (if (< (line-end-position) beg) t
	     ;; Fill paragraph, taking line breaks into account.
	     (save-excursion
	       (goto-char beg)
	       (let ((cuts (list beg)))
		 (while (re-search-forward "\\\\\\\\[ \t]*\n" end t)
		   (when (org-element-type-p
			  (save-excursion (backward-char)
					  (org-element-context))
                          'line-break)
		     (push (point) cuts)))
		 (dolist (c (delq end cuts))
		   (fill-region-as-paragraph c end justify)
		   (setq end c))))
	     t)))
	;; Contents of `comment-block' type elements should be
	;; filled as plain text, but only if point is within block
	;; markers.
	(comment-block
	 (let* ((case-fold-search t)
		(beg (save-excursion
		       (goto-char (org-element-begin element))
		       (re-search-forward "^[ \t]*#\\+begin_comment" nil t)
		       (forward-line)
		       (point)))
		(end (save-excursion
		       (goto-char (org-element-end element))
		       (re-search-backward "^[ \t]*#\\+end_comment" nil t)
		       (line-beginning-position))))
	   (if (or (< (point) beg) (> (point) end)) t
	     (fill-region-as-paragraph
	      (save-excursion (end-of-line)
			      (re-search-backward "^[ \t]*$" beg 'move)
			      (line-beginning-position))
	      (save-excursion (forward-line 0)
			      (re-search-forward "^[ \t]*$" end 'move)
			      (line-beginning-position))
	      justify))))
	;; Fill comments.
	(comment
	 (let ((begin (org-element-post-affiliated element))
	       (end (org-element-end element)))
	   (when (and (>= (point) begin) (<= (point) end))
	     (let ((begin (save-excursion
			    (end-of-line)
			    (if (re-search-backward "^[ \t]*#[ \t]*$" begin t)
				(progn (forward-line) (point))
			      begin)))
		   (end (save-excursion
			  (end-of-line)
			  (if (re-search-forward "^[ \t]*#[ \t]*$" end 'move)
			      (1- (line-beginning-position))
			    (skip-chars-backward " \r\t\n")
			    (line-end-position)))))
	       ;; Do not fill comments when at a blank line.
	       (when (> end begin)
		 (let ((fill-prefix
			(save-excursion
			  (forward-line 0)
			  (looking-at "[ \t]*#")
			  (let ((comment-prefix (match-string 0)))
			    (goto-char (match-end 0))
			    (if (looking-at adaptive-fill-regexp)
				(concat comment-prefix (match-string 0))
			      (concat comment-prefix " "))))))
		   (save-excursion
		     (fill-region-as-paragraph begin end justify))))))
	   t))
	;; Ignore every other element.
	(otherwise t)))))

(defun org-fill-paragraph (&optional justify region)
  "Fill element at point, when applicable.

This function only applies to comment blocks, comments, example
blocks and paragraphs.  Also, as a special case, re-align table
when point is at one.

For convenience, when point is at a plain list, an item or
a footnote definition, try to fill the first paragraph within.

If JUSTIFY is non-nil (interactively, with prefix argument),
justify as well.  If `sentence-end-double-space' is non-nil, then
period followed by one space does not end a sentence, so don't
break a line there.  The variable `fill-column' controls the
width for filling.

The REGION argument is non-nil if called interactively; in that
case, if Transient Mark mode is enabled and the mark is active,
fill each of the elements in the active region, instead of just
filling the current element."
  (interactive (progn
		 (barf-if-buffer-read-only)
		 (list (when current-prefix-arg 'full) t)))
  (let ((hash (and (not (buffer-modified-p))
		   (org-buffer-hash))))
    (cond
     ((and region transient-mark-mode mark-active
	   (not (eq (region-beginning) (region-end))))
      (let ((origin (point-marker))
	    (start (region-beginning)))
	(unwind-protect
	    (progn
	      (goto-char (region-end))
	      (skip-chars-backward " \t\n")
	      (let ((org--single-lines-list-is-paragraph nil))
                (while (> (point) start)
		  (org-fill-element justify)
		  (org-backward-paragraph)
                  (skip-chars-backward " \t\n"))))
	  (goto-char origin)
	  (set-marker origin nil))))
     (t
      (save-excursion
	(when (org-match-line "[ \t]*$")
	  (skip-chars-forward " \t\n"))
	(org-fill-element justify))))
    ;; If we didn't change anything in the buffer (and the buffer was
    ;; previously unmodified), then flip the modification status back
    ;; to "unchanged".
    (when (and hash (equal hash (org-buffer-hash)))
      (set-buffer-modified-p nil))
    ;; Return non-nil.
    t))

(defun org-auto-fill-function ()
  "Auto-fill function."
  ;; Check if auto-filling is meaningful.
  (let ((fc (current-fill-column)))
    (when (and fc (> (current-column) fc))
      (let* ((fill-prefix (org-adaptive-fill-function))
	     ;; Enforce empty fill prefix, if required.  Otherwise, it
	     ;; will be computed again.
	     (adaptive-fill-mode (not (equal fill-prefix ""))))
	(when fill-prefix (do-auto-fill))))))

(defun org-comment-line-break-function (&optional soft)
  "Break line at point and indent, continuing comment if within one.
The inserted newline is marked hard if variable
`use-hard-newlines' is true, unless optional argument SOFT is
non-nil.

This function is a simplified version of `comment-indent-new-line'
that bypasses the complex Emacs machinery dealing with comments.
We instead rely on Org parser, utilizing `org-adaptive-fill-function'"
  (let ((fill-prefix (org-adaptive-fill-function)))
    (if soft (insert-and-inherit ?\n) (newline 1))
    (save-excursion (forward-char -1) (delete-horizontal-space))
    (delete-horizontal-space)
    (indent-to-left-margin)
    (when fill-prefix
      (insert-before-markers-and-inherit fill-prefix))))


;;; Fixed Width Areas

(defun org-toggle-fixed-width ()
  "Toggle fixed-width markup.

Add or remove fixed-width markup on current line, whenever it
makes sense.  Return an error otherwise.

If a region is active and if it contains only fixed-width areas
or blank lines, remove all fixed-width markup in it.  If the
region contains anything else, convert all non-fixed-width lines
to fixed-width ones.

Blank lines at the end of the region are ignored unless the
region only contains such lines."
  (interactive)
  (if (not (org-region-active-p))
      ;; No region:
      ;;
      ;; Remove fixed width marker only in a fixed-with element.
      ;;
      ;; Add fixed width maker in paragraphs, in blank lines after
      ;; elements or at the beginning of a headline or an inlinetask,
      ;; and before any one-line elements (e.g., a clock).
      (progn
        (forward-line 0)
        (let* ((element (org-element-at-point))
               (type (org-element-type element)))
          (cond
           ((and (eq type 'fixed-width)
                 (looking-at "[ \t]*\\(:\\(?: \\|$\\)\\)"))
            (replace-match
	     "" nil nil nil (if (= (line-end-position) (match-end 0)) 0 1)))
           ((and (memq type '(babel-call clock comment diary-sexp headline
					 horizontal-rule keyword paragraph
					 planning))
		 (<= (org-element-post-affiliated element) (point)))
            (skip-chars-forward " \t")
            (insert ": "))
           ((and (looking-at-p "[ \t]*$")
                 (or (eq type 'inlinetask)
                     (save-excursion
                       (skip-chars-forward " \r\t\n")
                       (<= (org-element-end element) (point)))))
            (delete-region (point) (line-end-position))
            (org-indent-line)
            (insert ": "))
           (t (user-error "Cannot insert a fixed-width line here")))))
    ;; Region active.
    (let* ((begin (save-excursion
                    (goto-char (region-beginning))
                    (line-beginning-position)))
           (end (copy-marker
                 (save-excursion
                   (goto-char (region-end))
                   (unless (eolp) (forward-line 0))
                   (if (save-excursion (re-search-backward "\\S-" begin t))
                       (progn (skip-chars-backward " \r\t\n") (point))
                     (point)))))
           (all-fixed-width-p
            (catch 'not-all-p
              (save-excursion
                (goto-char begin)
                (skip-chars-forward " \r\t\n")
                (when (eobp) (throw 'not-all-p nil))
                (while (< (point) end)
                  (let ((element (org-element-at-point)))
                    (if (org-element-type-p element 'fixed-width)
                        (goto-char (org-element-end element))
                      (throw 'not-all-p nil))))
                t))))
      (if all-fixed-width-p
          (save-excursion
            (goto-char begin)
            (while (< (point) end)
              (when (looking-at "[ \t]*\\(:\\(?: \\|$\\)\\)")
                (replace-match
                 "" nil nil nil
                 (if (= (line-end-position) (match-end 0)) 0 1)))
              (forward-line)))
        (let ((min-ind (point-max)))
          ;; Find minimum indentation across all lines.
          (save-excursion
            (goto-char begin)
            (if (not (save-excursion (re-search-forward "\\S-" end t)))
                (setq min-ind 0)
              (catch 'zerop
                (while (< (point) end)
                  (unless (looking-at-p "[ \t]*$")
                    (let ((ind (org-current-text-indentation)))
                      (setq min-ind (min min-ind ind))
                      (when (zerop ind) (throw 'zerop t))))
                  (forward-line)))))
          ;; Loop over all lines and add fixed-width markup everywhere
          ;; but in fixed-width lines.
          (save-excursion
            (goto-char begin)
            (while (< (point) end)
              (cond
               ((org-at-heading-p)
                (insert ": ")
                (forward-line)
                (while (and (< (point) end) (looking-at-p "[ \t]*$"))
                  (insert ":")
                  (forward-line)))
               ((looking-at-p "[ \t]*:\\( \\|$\\)")
                (let* ((element (org-element-at-point))
                       (element-end (org-element-end element)))
                  (if (org-element-type-p element 'fixed-width)
                      (progn (goto-char element-end)
                             (skip-chars-backward " \r\t\n")
                             (forward-line))
                    (let ((limit (min end element-end)))
                      (while (< (point) limit)
                        (org-move-to-column min-ind t)
                        (insert ": ")
                        (forward-line))))))
               (t
                (org-move-to-column min-ind t)
                (insert ": ")
                (forward-line)))))))
      (set-marker end nil))))

\f
;;; Blocks

(defun org-block-map (function &optional start end)
  "Call FUNCTION at the head of all source blocks in the current buffer.
Optional arguments START and END can be used to limit the range."
  (let ((start (or start (point-min)))
        (end (or end (point-max))))
    (save-excursion
      (goto-char start)
      (while (and (< (point) end) (re-search-forward org-block-regexp end t))
	(save-excursion
	  (save-match-data
            (goto-char (match-beginning 0))
            (funcall function)))))))

(defun org-next-block (arg &optional backward block-regexp)
  "Jump to the next block.

With a prefix argument ARG, jump forward ARG many blocks.

When BACKWARD is non-nil, jump to the previous block.

When BLOCK-REGEXP is non-nil, use this regexp to find blocks.
Match data is set according to this regexp when the function
returns.

Return point at beginning of the opening line of found block.
Throw an error if no block is found."
  (interactive "p")
  (let ((re (or block-regexp "^[ \t]*#\\+BEGIN"))
	(case-fold-search t)
	(search-fn (if backward #'re-search-backward #'re-search-forward))
	(count (or arg 1))
	(origin (point))
	last-element)
    (if backward (forward-line 0)
      (let ((inhibit-field-text-motion t)) (end-of-line)))
    (while (and (> count 0) (funcall search-fn re nil t))
      (let ((element (save-excursion
		       (goto-char (match-beginning 0))
		       (save-match-data (org-element-at-point)))))
	(when (and (org-element-type-p
                    element
		    '(center-block comment-block dynamic-block
				   example-block export-block quote-block
				   special-block src-block verse-block))
		   (<= (match-beginning 0)
		      (org-element-post-affiliated element)))
	  (setq last-element element)
	  (cl-decf count))))
    (if (= count 0)
	(prog1 (goto-char (org-element-post-affiliated last-element))
	  (save-match-data (org-fold-show-context)))
      (goto-char origin)
      (user-error "No %s code blocks" (if backward "previous" "further")))))

(defun org-previous-block (arg &optional block-regexp)
  "Jump to the previous block.
With a prefix argument ARG, jump backward ARG many source blocks.
When BLOCK-REGEXP is non-nil, use this regexp to find blocks."
  (interactive "p")
  (org-next-block arg t block-regexp))

\f
;;; Comments

;; Org comments syntax is quite complex.  It requires the entire line
;; to be just a comment.  Also, even with the right syntax at the
;; beginning of line, some elements (e.g., verse-block or
;; example-block) don't accept comments.  Usual Emacs comment commands
;; cannot cope with those requirements.  Therefore, Org replaces them.

;; Org still relies on 'comment-dwim', but cannot trust
;; 'comment-only-p'.  So, 'comment-region-function' and
;; 'uncomment-region-function' both point
;; to 'org-comment-or-uncomment-region'.  Eventually,
;; 'org-insert-comment' takes care of insertion of comments at the
;; beginning of line.

;; 'org-setup-comments-handling' install comments related variables
;; during 'org-mode' initialization.

(defun org-setup-comments-handling ()
  (interactive)
  (setq-local comment-use-syntax nil)
  (setq-local comment-start "# ")
  (setq-local comment-start-skip "^\\s-*#\\(?: \\|$\\)")
  (setq-local comment-insert-comment-function 'org-insert-comment)
  (setq-local comment-region-function 'org-comment-or-uncomment-region)
  (setq-local uncomment-region-function 'org-comment-or-uncomment-region))

(defun org-insert-comment ()
  "Insert an empty comment above current line.
If the line is empty, insert comment at its beginning.  When
point is within a source block, comment according to the related
major mode."
  (if (let ((element (org-element-at-point)))
	(and (org-element-type-p element 'src-block)
	     (< (save-excursion
		  (goto-char (org-element-post-affiliated element))
		  (line-end-position))
		(point))
	     (> (save-excursion
		  (goto-char (org-element-end element))
		  (skip-chars-backward " \r\t\n")
		  (line-beginning-position))
		(point))))
      (org-babel-do-in-edit-buffer (call-interactively 'comment-dwim))
    (forward-line 0)
    (if (looking-at "\\s-*$") (delete-region (point) (line-end-position))
      (open-line 1))
    (org-indent-line)
    (insert "# ")))

(defvar comment-empty-lines)		; From newcomment.el.
(defun org-comment-or-uncomment-region (beg end &rest _)
  "Comment or uncomment each non-blank line in the region.
Uncomment each non-blank line between BEG and END if it only
contains commented lines.  Otherwise, comment them.  If region is
strictly within a source block, use appropriate comment syntax."
  (if (let ((element (org-element-at-point)))
	(and (org-element-type-p element 'src-block)
	     (< (save-excursion
		  (goto-char (org-element-post-affiliated element))
		  (line-end-position))
		beg)
	     (>= (save-excursion
		  (goto-char (org-element-end element))
		  (skip-chars-backward " \r\t\n")
		  (line-beginning-position))
		end)))
      ;; Translate region boundaries for the Org buffer to the source
      ;; buffer.
      (let ((offset (- end beg)))
	(save-excursion
	  (goto-char beg)
	  (org-babel-do-in-edit-buffer
	   (comment-or-uncomment-region (point) (+ offset (point))))))
    (save-restriction
      ;; Restrict region
      (narrow-to-region (save-excursion (goto-char beg)
					(skip-chars-forward " \r\t\n" end)
					(line-beginning-position))
			(save-excursion (goto-char end)
					(skip-chars-backward " \r\t\n" beg)
					(line-end-position)))
      (let ((uncommentp
	     ;; UNCOMMENTP is non-nil when every non blank line between
	     ;; BEG and END is a comment.
	     (save-excursion
	       (goto-char (point-min))
	       (while (and (not (eobp))
			   (let ((element (org-element-at-point)))
			     (and (org-element-type-p element 'comment)
				  (goto-char (min (point-max)
						  (org-element-property
						   :end element)))))))
	       (eobp))))
	(if uncommentp
	    ;; Only blank lines and comments in region: uncomment it.
	    (save-excursion
	      (goto-char (point-min))
	      (while (not (eobp))
		(when (looking-at "[ \t]*\\(#\\(?: \\|$\\)\\)")
		  (replace-match "" nil nil nil 1))
		(forward-line)))
	  ;; Comment each line in region.
	  (let ((min-indent (point-max)))
	    ;; First find the minimum indentation across all lines.
	    (save-excursion
	      (goto-char (point-min))
	      (while (and (not (eobp)) (not (zerop min-indent)))
		(unless (looking-at "[ \t]*$")
		  (setq min-indent (min min-indent (org-current-text-indentation))))
		(forward-line)))
	    ;; Then loop over all lines.
	    (save-excursion
	      (goto-char (point-min))
	      (while (not (eobp))
		(unless (and (not comment-empty-lines) (looking-at "[ \t]*$"))
		  ;; Don't get fooled by invisible text (e.g. link path)
		  ;; when moving to column MIN-INDENT.
		  (let ((buffer-invisibility-spec nil))
		    (org-move-to-column min-indent t))
		  (insert comment-start))
		(forward-line)))))))))

(defun org-comment-dwim (_arg)
  "Call the comment command you mean.
Call `org-toggle-comment' if on a heading, otherwise call
`comment-dwim'."
  (interactive "*P")
  (cond ((org-at-heading-p)
	 (call-interactively #'org-toggle-comment))
	(t (call-interactively #'comment-dwim))))


;;; Timestamps API

;; This section contains tools to operate on, or create, timestamp
;; objects, as returned by, e.g. `org-element-context'.

(defun org-timestamp-from-string (s)
  "Convert Org timestamp S, as a string, into a timestamp object.
Return nil if S is not a valid timestamp string."
  (when (org-string-nw-p s)
    (with-temp-buffer
      (save-excursion (insert s))
      (org-element-timestamp-parser))))

(defun org-timestamp-from-time (time &optional with-time inactive)
  "Convert a time value into a timestamp object.

TIME is an Emacs internal time representation, as returned, e.g.,
by `current-time'.

When optional argument WITH-TIME is non-nil, return a timestamp
object with a time part, i.e., with hours and minutes.

Return an inactive timestamp if INACTIVE is non-nil.  Otherwise,
return an active timestamp."
  (pcase-let ((`(,_ ,minute ,hour ,day ,month ,year . ,_) (decode-time time)))
    (org-element-create 'timestamp
			(list :type (if inactive 'inactive 'active)
			      :year-start year
			      :month-start month
			      :day-start day
			      :hour-start (and with-time hour)
			      :minute-start (and with-time minute)))))

(defun org-timestamp-to-time (timestamp &optional end)
  "Convert TIMESTAMP object into an Emacs internal time value.
Use end of date range or time range when END is non-nil.
Otherwise, use its start."
  (org-encode-time
   (append '(0)
           (mapcar
            (lambda (prop) (or (org-element-property prop timestamp) 0))
            (if end '(:minute-end :hour-end :day-end :month-end :year-end)
              '(:minute-start :hour-start :day-start :month-start
                              :year-start)))
           '(nil -1 nil))))

(defun org-timestamp-has-time-p (timestamp)
  "Non-nil when TIMESTAMP has a time specified."
  (org-element-property :hour-start timestamp))

(defun org-format-timestamp (timestamp format &optional end utc)
  "Format a TIMESTAMP object into a string.

FORMAT is a format specifier to be passed to
`format-time-string'.

When optional argument END is non-nil, use end of date-range or
time-range, if possible.

When optional argument UTC is non-nil, time is be expressed as
Universal Time."
  (format-time-string format (org-timestamp-to-time timestamp end)
		      (and utc t)))

(defun org-timestamp-split-range (timestamp &optional end)
  "Extract a TIMESTAMP object from a date or time range.

END, when non-nil, means extract the end of the range.
Otherwise, extract its start.

Return a new timestamp object."
  (let ((type (org-element-property :type timestamp)))
    (if (memq type '(active inactive diary)) timestamp
      (let ((split-ts (org-element-copy timestamp)))
	;; Set new type.
	(org-element-put-property
	 split-ts :type (if (eq type 'active-range) 'active 'inactive))
        (org-element-put-property split-ts :range-type nil)
	;; Copy start properties over end properties if END is
	;; non-nil.  Otherwise, copy end properties over `start' ones.
	(let ((p-alist '((:minute-start . :minute-end)
			 (:hour-start . :hour-end)
			 (:day-start . :day-end)
			 (:month-start . :month-end)
			 (:year-start . :year-end))))
	  (dolist (p-cell p-alist)
	    (org-element-put-property
	     split-ts
	     (funcall (if end #'car #'cdr) p-cell)
	     (org-element-property
	      (funcall (if end #'cdr #'car) p-cell) split-ts)))
	  ;; Eventually refresh `:raw-value'.
	  (org-element-put-property split-ts :raw-value nil)
	  (org-element-put-property
	   split-ts :raw-value (org-element-interpret-data split-ts)))))))

(defun org-timestamp-translate (timestamp &optional boundary)
  "Translate TIMESTAMP object to custom format.

Format string is defined in `org-timestamp-custom-formats',
which see.

When optional argument BOUNDARY is non-nil, it is either the
symbol `start' or `end'.  In this case, only translate the
starting or ending part of TIMESTAMP if it is a date or time
range.  Otherwise, translate both parts.

Return timestamp as-is if `org-display-custom-times' is nil or if
it has a `diary' type."
  (let ((type (org-element-property :type timestamp)))
    (if (or (not org-display-custom-times) (eq type 'diary))
	(org-element-interpret-data timestamp)
      (let ((fmt (org-time-stamp-format
                  (org-timestamp-has-time-p timestamp) nil 'custom)))
	(if (and (not boundary) (memq type '(active-range inactive-range)))
	    (concat (org-format-timestamp timestamp fmt)
		    "--"
		    (org-format-timestamp timestamp fmt t))
	  (org-format-timestamp timestamp fmt (eq boundary 'end)))))))

;;; Yank media handler and DND
(defun org-setup-yank-dnd-handlers ()
  "Setup the `yank-media' and DND handlers for buffer."
  (setq-local dnd-protocol-alist
              (cons (cons "^file:///"
                          (if (>= emacs-major-version 30)
                              #'org--dnd-multi-local-file-handler
                            #'org--dnd-local-file-handler))
                    dnd-protocol-alist))
  (when (fboundp 'yank-media-handler)
    (yank-media-handler "image/.*" #'org--image-yank-media-handler)
    ;; Looks like different DEs go for different handler names,
    ;; https://larsee.com/blog/2019/05/clipboard-files/.
    (yank-media-handler "x/special-\\(?:gnome\|KDE\|mate\\)-files"
                        #'org--copied-files-yank-media-handler))
  (when (boundp 'x-dnd-direct-save-function)
    (setq-local x-dnd-direct-save-function #'org--dnd-xds-function)))

(defcustom org-yank-image-save-method 'attach
  "Method to save images yanked from clipboard and dropped to Emacs.
It can be the symbol `attach' to add it as an attachment, or a
directory name to copy/cut the image to that directory."
  :group 'org
  :package-version '(Org . "9.7")
  :type '(choice (const :tag "Add it as attachment" attach)
                 (directory :tag "Save it in directory"))
  :safe (lambda (x) (eq x 'attach)))

(defcustom org-yank-image-file-name-function #'org-yank-image-autogen-filename
  "Function to generate filename for image yanked from clipboard.
By default, this autogenerates a filename based on the current
time.
It is called with no arguments and should return a string without
any extension which is used as the filename."
  :group 'org
  :package-version '(Org . "9.7")
  :type '(radio (function-item :doc "Autogenerate filename"
                               org-yank-image-autogen-filename)
                (function-item :doc "Ask for filename"
                               org-yank-image-read-filename)
                function))

(defun org-yank-image-autogen-filename ()
  "Autogenerate filename for image in clipboard."
  (format-time-string "clipboard-%Y%m%dT%H%M%S.%6N"))

(defun org-yank-image-read-filename ()
  "Read filename for image in clipboard."
  (read-string "Basename for image file without extension: "))

(declare-function org-attach-attach "org-attach" (file &optional visit-dir method))

(defun org--image-yank-media-handler (mimetype data)
  "Save image DATA of mime-type MIMETYPE and insert link at point.
It is saved as per `org-yank-image-save-method'.  The name for the
image is prompted and the extension is automatically added to the
end."
  (cl-assert (fboundp 'mailcap-mime-type-to-extension)) ; Emacs >=29
  (cl-assert (fboundp 'file-name-with-extension)) ; Emacs >=28
  (let* ((ext (symbol-name
               (with-no-warnings ; Suppress warning in Emacs <29
                 (mailcap-mime-type-to-extension mimetype))))
         (iname (funcall org-yank-image-file-name-function))
         (filename (with-no-warnings ; Suppress warning in Emacs <28
                     (file-name-with-extension iname ext)))
         (absname (expand-file-name
                   filename
                   (if (eq org-yank-image-save-method 'attach)
                       temporary-file-directory
                     org-yank-image-save-method)))
         link)
    (when (and (not (eq org-yank-image-save-method 'attach))
               (not (file-directory-p org-yank-image-save-method)))
      (make-directory org-yank-image-save-method t))
    (with-temp-file absname
      (insert data))
    (if (null (eq org-yank-image-save-method 'attach))
        (setq link (org-link-make-string (concat "file:" (file-relative-name absname))))
      (require 'org-attach)
      (org-attach-attach absname nil 'mv)
      (setq link (org-link-make-string (concat "attachment:" filename))))
    (insert link)))

;; I cannot find a spec for this but
;; https://indigo.re/posts/2021-12-21-clipboard-data.html and pcmanfm
;; suggests that this is the format.
(defun org--copied-files-yank-media-handler (_mimetype data)
  "Handle copied or cut files from file manager.
They are handled as per `org-yank-dnd-method'.
DATA is a string where the first line is the operation to
perform: copy or cut.  Rest of the lines are file: links to the
concerned files."
  ;; pcmanfm adds a null byte at the end for some reason.
  (let* ((data (split-string data "[\0\n\r]" t))
         (files (cdr data))
         (action (if (equal (car data) "cut")
                     'copy
                   'move))
         (sep (if (= (length files) 1) "" " ")))
    (dolist (f files)
      (if (file-readable-p f)
          (org--dnd-local-file-handler f action sep)
        (message "File `%s' is not readable, skipping" f)))))

(defcustom org-yank-dnd-method 'ask
  "Action to perform on the dropped and the pasted files.
When the value is the symbol,
  . `attach' -- attach dropped/pasted file
  . `open' -- visit/open dropped/pasted file in Emacs
  . `file-link' -- insert file: link to dropped/pasted file
  . `ask' -- ask what to do out of the above."
  :group 'org
  :package-version '(Org . "9.7")
  :type '(choice (const :tag "Attach" attach)
                 (const :tag "Open/Visit file" open)
                 (const :tag "Insert file: link" file-link)
                 (const :tag "Ask what to do" ask)))

(defcustom org-yank-dnd-default-attach-method nil
  "Default attach method to use when DND action is unspecified.
This attach method is used when the DND action is `private'.
This is also used when `org-yank-image-save-method' is nil.
When nil, use `org-attach-method'."
  :group 'org
  :package-version '(Org . "9.7")
  :type '(choice (const :tag "Default attach method" nil)
                 (const :tag "Copy" cp)
                 (const :tag "Move" mv)
                 (const :tag "Hard link" ln)
                 (const :tag "Symbolic link" lns)))

(declare-function mailcap-file-name-to-mime-type "mailcap" (file-name))
(defvar org-attach-method)

(defun org--dnd-rmc (prompt choices)
  (if (null (and
             ;; Emacs <=28 does not have `use-dialog-box-p'.
             (fboundp 'use-dialog-box-p)
             (use-dialog-box-p)))
      (caddr (read-multiple-choice prompt choices))
    (setq choices
          (mapcar
           (pcase-lambda (`(_key ,message ,val))
             (cons (capitalize message) val))
           choices))
    (x-popup-menu t (list prompt (cons "" choices)))))

(defun org--dnd-multi-local-file-handler (urls action)
  "Handle file URLS as per ACTION.
URLS is a list of file URL."
  (let ((sep (if (= (length urls) 1) "" " ")))
    (dolist (u urls)
      (org--dnd-local-file-handler u action sep))))

(put 'org--dnd-multi-local-file-handler 'dnd-multiple-handler t)

(defun org--dnd-local-file-handler (url action &optional separator)
  "Handle file URL as per ACTION.
SEPARATOR is the string to insert after each link.  It may be nil
in which case, space is inserted."
  (unless separator
    (setq separator " "))
  (let ((method (if (eq org-yank-dnd-method 'ask)
                    (org--dnd-rmc
                     "What to do with file?"
                     '((?a "attach" attach)
                       (?o "open" open)
                       (?f "insert file: link" file-link)))
                  org-yank-dnd-method)))
    (pcase method
      (`attach (org--dnd-attach-file url action separator))
      (`open (dnd-open-local-file url action))
      (`file-link
       (let ((filename (dnd-get-local-file-name url)))
         (insert (org-link-make-string (concat "file:" filename)) separator))))))

(defun org--dnd-attach-file (url action separator)
  "Attach filename given by URL using method pertaining to ACTION.
If ACTION is `move', use `mv' attach method.
If `copy', use `cp' attach method.
If `ask', ask the user.
If `private', use the method denoted in `org-yank-dnd-default-attach-method'.
The action `private' is always returned.

SEPARATOR is the string to insert after each link."
  (require 'mailcap)
  (let* ((filename (dnd-get-local-file-name url))
         (mimetype (mailcap-file-name-to-mime-type filename))
         (separatep (and (string-prefix-p "image/" mimetype)
                         (not (eq 'attach org-yank-image-save-method))))
         (method (pcase action
                   ('copy 'cp)
                   ('move 'mv)
                   ('ask (org--dnd-rmc
                          "Attach using method"
                          '((?c "copy" cp)
                            (?m "move" mv)
                            (?l "hard link" ln)
                            (?s "symbolic link" lns))))
                   ('private (or org-yank-dnd-default-attach-method
                                 org-attach-method)))))
    (if separatep
        (funcall
         (pcase method
           ('cp #'copy-file)
           ('mv #'rename-file)
           ('ln #'add-name-to-file)
           ('lns #'make-symbolic-link))
         filename
         (expand-file-name (file-name-nondirectory filename)
                           org-yank-image-save-method))
      (org-attach-attach filename nil method))
    (insert
     (org-link-make-string
      (concat (if separatep
                  "file:"
                "attachment:")
              (if separatep
                  (expand-file-name (file-name-nondirectory filename)
                                    org-yank-image-save-method)
                (file-name-nondirectory filename))))
     separator)
    'private))

(defvar-local org--dnd-xds-method nil
  "The method to use for dropped file.")
(defun org--dnd-xds-function (need-name filename)
  "Handle file with FILENAME dropped via XDS protocol.
When NEED-NAME is t, FILNAME is the base name of the file to be
saved.
When NEED-NAME is nil, the drop is complete."
  (if need-name
      (let ((method (if (eq org-yank-dnd-method 'ask)
                        (org--dnd-rmc
                         "What to do with dropped file?"
                         '((?a "attach" attach)
                           (?o "open" open)
                           (?f "insert file: link" file-link)))
                      org-yank-dnd-method)))
        (setq-local org--dnd-xds-method method)
        (pcase method
          (`attach (expand-file-name filename (org-attach-dir 'create)))
          (`open (expand-file-name (make-temp-name "emacs.") temporary-file-directory))
          (`file-link (read-file-name "Write file to: " nil nil nil filename))))
    (pcase org--dnd-xds-method
      (`attach (insert (org-link-make-string
                        (concat "attachment:" (file-name-nondirectory filename)))))
      (`file-link (insert (org-link-make-string (concat "file:" filename))))
      (`open (find-file filename)))
    (setq-local org--dnd-xds-method nil)))

;;; Other stuff

(defvar reftex-docstruct-symbol)
(defvar org--rds)

(defun org-reftex-citation ()
  "Use `reftex-citation' to insert a citation into the buffer.
This looks for a line like

#+BIBLIOGRAPHY: foo plain option:-d

and derives from it that foo.bib is the bibliography file relevant
for this document.  It then installs the necessary environment for RefTeX
to work in this buffer and calls `reftex-citation'  to insert a citation
into the buffer.

Export of such citations to both LaTeX and HTML is handled by the contributed
package ox-bibtex by Taru Karttunen."
  (interactive)
  (let ((reftex-docstruct-symbol 'org--rds)
	org--rds bib)
    (org-with-wide-buffer
     (let ((case-fold-search t)
	   (re "^[ \t]*#\\+BIBLIOGRAPHY:[ \t]+\\([^ \t\n]+\\)"))
       (if (not (save-excursion
		  (or (re-search-forward re nil t)
		      (re-search-backward re nil t))))
	   (user-error "No bibliography defined in file")
	 (setq bib (concat (match-string 1) ".bib")
	       org--rds (list (list 'bib bib))))))
    (call-interactively 'reftex-citation)))

;;;; Functions extending outline functionality

(defun org-beginning-of-line (&optional n)
  "Go to the beginning of the current visible line.

If this is a headline, and `org-special-ctrl-a/e' is not nil or
symbol `reversed', on the first attempt move to where the
headline text starts, and only move to beginning of line when the
cursor is already before the start of the text of the headline.

If `org-special-ctrl-a/e' is symbol `reversed' then go to the
start of the text on the second attempt.

With argument N not nil or 1, move forward N - 1 lines first."
  (interactive "^p")
  (let ((origin (point))
	(special (pcase org-special-ctrl-a/e
		   (`(,C-a . ,_) C-a) (_ org-special-ctrl-a/e)))
	deactivate-mark)
    ;; First move to a visible line.
    (if (bound-and-true-p visual-line-mode)
	(beginning-of-visual-line n)
      (move-beginning-of-line n)
      ;; `move-beginning-of-line' may leave point after invisible
      ;; characters if line starts with such of these (e.g., with
      ;; a link at column 0).  Really move to the beginning of the
      ;; current visible line.
      (forward-line 0))
    (cond
     ;; No special behavior.  Point is already at the beginning of
     ;; a line, logical or visual.
     ((not special))
     ;; `beginning-of-visual-line' left point before logical beginning
     ;; of line: point is at the beginning of a visual line.  Bail
     ;; out.
     ((and (bound-and-true-p visual-line-mode) (not (bolp))))
     ((let ((case-fold-search nil)) (looking-at org-complex-heading-regexp))
      ;; At a headline, special position is before the title, but
      ;; after any TODO keyword or priority cookie.
      (let ((refpos (min (1+ (or (match-end 3) (match-end 2) (match-end 1)))
			 (line-end-position)))
	    (bol (point)))
	(if (eq special 'reversed)
	    (when (and (= origin bol) (eq last-command this-command))
	      (goto-char refpos))
	  (when (or (> origin refpos) (<= origin bol))
	    (goto-char refpos)))))
     ((and (looking-at org-list-full-item-re)
	   (org-element-type-p
            (save-match-data (org-element-at-point))
	    '(item plain-list)))
      ;; Set special position at first white space character after
      ;; bullet, and check-box, if any.
      (let ((after-bullet
	     (let ((box (match-end 3)))
	       (cond ((not box) (match-end 1))
		     ((eq (char-after box) ?\s) (1+ box))
		     (t box)))))
	(if (eq special 'reversed)
	    (when (and (= (point) origin) (eq last-command this-command))
	      (goto-char after-bullet))
	  (when (or (> origin after-bullet) (>= (point) origin))
	    (goto-char after-bullet)))))
     ;; No special context.  Point is already at beginning of line.
     (t nil))))

(defun org-end-of-line (&optional n)
  "Go to the end of the line, but before ellipsis, if any.

If this is a headline, and `org-special-ctrl-a/e' is not nil or
symbol `reversed', ignore tags on the first attempt, and only
move to after the tags when the cursor is already beyond the end
of the headline.

If `org-special-ctrl-a/e' is symbol `reversed' then ignore tags
on the second attempt.

With argument N not nil or 1, move forward N - 1 lines first."
  (interactive "^p")
  (let ((origin (point))
	(special (pcase org-special-ctrl-a/e
		   (`(,_ . ,C-e) C-e) (_ org-special-ctrl-a/e)))
	deactivate-mark)
    ;; First move to a visible line.
    (if (bound-and-true-p visual-line-mode)
	(beginning-of-visual-line n)
      (move-beginning-of-line n))
    (cond
     ;; At a headline, with tags.
     ((and special
	   (save-excursion
	     (forward-line 0)
	     (let ((case-fold-search nil))
	       (looking-at org-complex-heading-regexp)))
	   (match-end 5))
      (let ((tags (save-excursion
		    (goto-char (match-beginning 5))
		    (skip-chars-backward " \t")
		    (point)))
	    (visual-end (and (bound-and-true-p visual-line-mode)
			     (save-excursion
			       (end-of-visual-line)
			       (point)))))
	;; If `end-of-visual-line' brings us before end of line or
	;; even tags, i.e., the headline spans over multiple visual
	;; lines, move there.
	(cond ((and visual-end
		    (< visual-end tags)
		    (<= origin visual-end))
	       (goto-char visual-end))
	      ((eq special 'reversed)
	       (if (and (= origin (line-end-position))
			(eq this-command last-command))
		   (goto-char tags)
		 (end-of-line)))
	      (t
	       (if (or (< origin tags) (>= origin (line-end-position)))
		   (goto-char tags)
		 (end-of-line))))))
     ((bound-and-true-p visual-line-mode)
      (let ((bol (line-beginning-position)))
	(end-of-visual-line)
	;; If `end-of-visual-line' gets us past the ellipsis at the
	;; end of a line, backtrack and use `end-of-line' instead.
	(when (/= bol (line-beginning-position))
	  (goto-char bol)
	  (end-of-line))))
     (t (end-of-line)))))

(defun org-backward-sentence (&optional _arg)
  "Go to beginning of sentence, or beginning of table field.
This will call `backward-sentence' or `org-table-beginning-of-field',
depending on context."
  (interactive)
  (let* ((element (org-element-at-point))
	 (contents-begin (org-element-contents-begin element))
	 (table (org-element-lineage element 'table t)))
    (if (and table
	     (> (point) contents-begin)
	     (<= (point) (org-element-contents-end table)))
	(call-interactively #'org-table-beginning-of-field)
      (save-restriction
	(when (and contents-begin
		   (< (point-min) contents-begin)
		   (> (point) contents-begin))
	  (narrow-to-region contents-begin
			    (org-element-contents-end element)))
	(call-interactively #'backward-sentence)))))

(defun org-forward-sentence (&optional _arg)
  "Go to end of sentence, or end of table field.
This will call `forward-sentence' or `org-table-end-of-field',
depending on context."
  (interactive)
  (if (and (org-at-heading-p)
	   (save-restriction (skip-chars-forward " \t") (not (eolp))))
      (save-restriction
	(narrow-to-region (line-beginning-position) (line-end-position))
	(call-interactively #'forward-sentence))
    (let* ((element (org-element-at-point))
	   (contents-end (org-element-contents-end element))
	   (table (org-element-lineage element 'table t)))
      (if (and table
	       (>= (point) (org-element-contents-begin table))
	       (< (point) contents-end))
	  (call-interactively #'org-table-end-of-field)
	(save-restriction
	  (when (and contents-end
		     (> (point-max) contents-end)
		     ;; Skip blank lines between elements.
		     (< (org-element-end element)
			(save-excursion (goto-char contents-end)
					(skip-chars-forward " \r\t\n"))))
	    (narrow-to-region (org-element-contents-begin element)
			      contents-end))
	  ;; End of heading is considered as the end of a sentence.
	  (let ((sentence-end (concat (sentence-end) "\\|^\\*+ .*$")))
	    (call-interactively #'forward-sentence)))))))

(defun org-kill-line (&optional _arg)
  "Kill line, to tags or end of line.

The behavior of this command depends on the user options
`org-special-ctrl-k' and `org-ctrl-k-protect-subtree' (which
see)."
  (interactive)
  (cond
   ((or (not org-special-ctrl-k)
	(bolp)
	(not (org-at-heading-p)))
    (when (and (org-invisible-p (line-end-position))
	       org-ctrl-k-protect-subtree
	       (or (eq org-ctrl-k-protect-subtree 'error)
		   (not (y-or-n-p "Kill hidden subtree along with headline? "))))
      (user-error
       (substitute-command-keys
	"`\\[org-kill-line]' aborted as it would kill a hidden subtree")))
    (call-interactively
     (if (bound-and-true-p visual-line-mode) 'kill-visual-line 'kill-line)))
   ((org-match-line org-tag-line-re)
    (let ((end (save-excursion
		 (goto-char (match-beginning 1))
		 (skip-chars-backward " \t")
		 (point))))
      (if (<= end (point))		;on tags part
	  (kill-region (point) (line-end-position))
	(kill-region (point) end)))
    ;; Only align tags when we are still on a heading:
    (if (org-at-heading-p) (org-align-tags)))
   (t (kill-region (point) (line-end-position)))))

(defun org-yank (&optional arg)
  "Yank.  If the kill is a subtree, treat it specially.
This command will look at the current kill and check if is a single
subtree, or a series of subtrees[1].  If it passes the test, and if the
cursor is at the beginning of a line or after the stars of a currently
empty headline, then the yank is handled specially.  How exactly depends
on the value of the following variables.

`org-yank-folded-subtrees'
    By default, this variable is non-nil, which results in
    subtree(s) being folded after insertion, except if doing so
    would swallow text after the yanked text.

`org-yank-adjusted-subtrees'
    When non-nil (the default value is nil), the subtree will be
    promoted or demoted in order to fit into the local outline tree
    structure, which means that the level will be adjusted so that it
    becomes the smaller one of the two *visible* surrounding headings.

Any prefix to this command will cause `yank' to be called directly with
no special treatment.  In particular, a simple `\\[universal-argument]' prefix \
will just
plainly yank the text as it is.

\[1] The test checks if the first non-white line is a heading
    and if there are no other headings with fewer stars."
  (interactive "P")
  (org-yank-generic 'yank arg))

(defun org-yank-generic (command arg)
  "Perform some yank-like command.

This function implements the behavior described in the `org-yank'
documentation.  However, it has been generalized to work for any
interactive command with similar behavior."

  ;; pretend to be command COMMAND
  (setq this-command command)

  (if arg
      (call-interactively command)

    (let ((subtreep ; is kill a subtree, and the yank position appropriate?
	   (and (org-kill-is-subtree-p)
		(or (bolp)
		    (and (looking-at "[ \t]*$")
			 (string-match
			  "\\`\\*+\\'"
                          (buffer-substring (line-beginning-position) (point)))))))
	  swallowp)
      (cond
       ((and subtreep org-yank-folded-subtrees)
	(let ((beg (point))
	      end)
	  (if (and subtreep org-yank-adjusted-subtrees)
	      (org-paste-subtree nil nil 'for-yank)
	    (call-interactively command))

	  (setq end (point))
	  (goto-char beg)
	  (when (and (bolp) subtreep
		     (not (setq swallowp
			      (org-yank-folding-would-swallow-text beg end))))
	    (org-with-limited-levels
	     (or (looking-at org-outline-regexp)
		 (re-search-forward org-outline-regexp-bol end t))
	     (while (and (< (point) end) (looking-at org-outline-regexp))
	       (org-fold-subtree t)
	       (org-cycle-show-empty-lines 'folded)
	       (condition-case nil
		   (outline-forward-same-level 1)
		 (error (goto-char end))))))
	  (when swallowp
	    (message
	     "Inserted text not folded because that would swallow text"))

	  (goto-char end)
	  (skip-chars-forward " \t\n\r")
	  (forward-line 0)
	  (push-mark beg 'nomsg)))
       ((and subtreep org-yank-adjusted-subtrees)
        (let ((beg (line-beginning-position)))
	  (org-paste-subtree nil nil 'for-yank)
	  (push-mark beg 'nomsg)))
       (t
	(call-interactively command))))))

(defun org-yank-folding-would-swallow-text (beg end)
  "Would `hide-subtree' at BEG swallow any text after END?"
  (let (level)
    (org-with-limited-levels
     (save-excursion
       (goto-char beg)
       (when (or (looking-at org-outline-regexp)
		 (re-search-forward org-outline-regexp-bol end t))
	 (setq level (org-outline-level)))
       (goto-char end)
       (skip-chars-forward " \t\r\n\v\f")
       (not (or (eobp)
		(and (bolp) (looking-at-p org-outline-regexp)
		     (<= (org-outline-level) level))))))))

(defun org-back-to-heading (&optional invisible-ok)
  "Go back to beginning of heading or inlinetask."
  (forward-line 0)
  (or (and (org-at-heading-p (not invisible-ok))
           (not (and (featurep 'org-inlinetask)
                   (fboundp 'org-inlinetask-end-p)
                   (org-inlinetask-end-p))))
      (unless
          (org-element-lineage-map
              (org-element-at-point)
              (lambda (el)
                (goto-char (org-element-begin el))
                (or invisible-ok (not (org-fold-folded-p))))
            '(headline inlinetask)
            'with-self 'first-match)
        (user-error "Before first headline at position %d in buffer %s"
		    (point) (current-buffer))))
  (point))

(defun org-back-to-heading-or-point-min (&optional invisible-ok)
  "Go back to heading or first point in buffer.
If point is before first heading go to first point in buffer
instead of back to heading."
  (if (org-before-first-heading-p)
      (goto-char (point-min))
    (org-back-to-heading invisible-ok)))

(defun org-before-first-heading-p ()
  "Before first heading?
Respect narrowing."
  (let ((cached (org-element-at-point nil 'cached)))
    (if cached
        (let ((cached-headline (org-element-lineage cached 'headline t)))
          (or (not cached-headline)
              (< (org-element-begin cached-headline) (point-min))))
      (org-with-limited-levels
       (save-excursion
         (end-of-line)
         (null (re-search-backward org-outline-regexp-bol nil t)))))))

(defun org-at-heading-p (&optional invisible-not-ok)
  "Return t if point is on a (possibly invisible) heading line.
If INVISIBLE-NOT-OK is non-nil, an invisible heading line is not ok."
  (save-excursion
    (forward-line 0)
    (and (or (not invisible-not-ok) (not (org-fold-folded-p)))
	 (looking-at outline-regexp))))

(defun org-in-commented-heading-p (&optional no-inheritance element)
  "Non-nil if point is under a commented heading.
This function also checks ancestors of the current headline,
unless optional argument NO-INHERITANCE is non-nil.

Optional argument ELEMENT contains element at point."
  (unless element
    (setq
     element
     (org-element-lineage
      (org-element-at-point)
      '(headline inlinetask) 'with-self)))
  (if no-inheritance
      (org-element-property :commentedp element)
    (org-element-property-inherited :commentedp element 'with-self)))

(defun org-in-archived-heading-p (&optional no-inheritance element)
  "Non-nil if point is under an archived heading.
This function also checks ancestors of the current headline,
unless optional argument NO-INHERITANCE is non-nil.

Optional argument ELEMENT contains element at point."
  (unless element
    (setq
     element
     (org-element-lineage
      (org-element-at-point)
      '(headline inlinetask) 'with-self)))
  (if no-inheritance
      (org-element-property :archivedp element)
    (org-element-property-inherited :archivedp element 'with-self)))

(defun org-at-comment-p nil
  "Return t if cursor is in a commented line."
  (save-excursion
    (save-match-data
      (forward-line 0)
      (looking-at org-comment-regexp))))

(defun org-at-keyword-p nil
  "Return t if cursor is at a keyword-line."
  (save-excursion
    (move-beginning-of-line 1)
    (looking-at org-keyword-regexp)))

(defun org-at-drawer-p nil
  "Return t if cursor is at a drawer keyword."
  (save-excursion
    (move-beginning-of-line 1)
    (looking-at org-drawer-regexp)))

(defun org-at-block-p nil
  "Return t if cursor is at a block keyword."
  (save-excursion
    (move-beginning-of-line 1)
    (looking-at org-block-regexp)))

(defun org-point-at-end-of-empty-headline ()
  "If point is at the end of an empty headline, return t, else nil.
If the heading only contains a TODO keyword, it is still considered
empty."
  (let ((case-fold-search nil))
    (and (looking-at "[ \t]*$")
	 org-todo-line-regexp
	 (save-excursion
	   (forward-line 0)
	   (looking-at org-todo-line-regexp)
	   (string= (match-string 3) "")))))

(defun org-at-heading-or-item-p ()
  (or (org-at-heading-p) (org-at-item-p)))

(defun org-up-heading-all (arg)
  "Move to the heading line of which the present line is a subheading.
This function considers both visible and invisible heading lines.
With argument, move up ARG levels."
  (outline-up-heading arg t))

(defun org-up-heading-safe ()
  "Move to the heading line of which the present line is a subheading.
Return the true heading level, as number or nil when there is no such
heading.

When point is not at heading, go to the parent of the current heading.
When point is at or inside an inlinetask, go to the containing
heading.

This version will not throw an error.  It will return the true level
of the headline found, or nil if no higher level is found.

When no higher level is found, the still move point to the containing
heading, if there is any in the accessible portion of the buffer.

When narrowing is in effect, ignore headings starting before the
available portion of the buffer."
  (let* ((current-heading (org-element-lineage
                           (org-element-at-point)
                           '(headline inlinetask)
                           'with-self))
         (parent (org-element-lineage current-heading 'headline)))
    (if (and parent
             (<= (point-min) (org-element-begin parent)))
        (progn
          (goto-char (org-element-begin parent))
          (org-element-property :true-level parent))
      (when (and current-heading
                 (<= (point-min) (org-element-begin current-heading)))
        (goto-char (org-element-begin current-heading))
        nil))))

(defun org-up-heading-or-point-min ()
  "Move to the heading line of which the present is a subheading, or point-min.
This version is needed to make point-min behave like a virtual
heading of level 0 for property-inheritance.  It will return the
level of the headline found (down to 0) or nil if already at a
point before the first headline or at point-min."
  (when (ignore-errors (org-back-to-heading t))
    (if (< 1 (funcall outline-level))
	(or (org-up-heading-safe)
            ;; The first heading may not be level 1 heading.
            (goto-char (point-min)))
      (unless (= (point) (point-min)) (goto-char (point-min))))))

(defun org-first-sibling-p ()
  "Is this heading the first child of its parents?"
  (let ((re org-outline-regexp-bol)
	level l)
    (unless (org-at-heading-p t)
      (user-error "Not at a heading"))
    (setq level (funcall outline-level))
    (save-excursion
      (if (not (re-search-backward re nil t))
	  t
	(setq l (funcall outline-level))
	(< l level)))))

(defun org-goto-sibling (&optional previous)
  "Goto the next sibling heading, even if it is invisible.
When PREVIOUS is set, go to the previous sibling instead.  Returns t
when a sibling was found.  When none is found, return nil and don't
move point."
  (let ((fun (if previous 're-search-backward 're-search-forward))
	(pos (point))
	(re org-outline-regexp-bol)
	level l)
    (when (ignore-errors (org-back-to-heading t))
      (when (org-element-type-p (org-element-at-point) 'inlinetask)
        (org-up-heading-safe))
      (setq level (funcall outline-level))
      (catch 'exit
	(or previous (forward-char 1))
	(while (funcall fun re nil t)
	  (setq l (funcall outline-level))
	  (when (< l level) (goto-char pos) (throw 'exit nil))
	  (when (= l level) (goto-char (match-beginning 0)) (throw 'exit t)))
	(goto-char pos)
	nil))))

(defun org-goto-first-child (&optional element)
  "Goto the first child, even if it is invisible.
Return t when a child was found.  Otherwise don't move point and
return nil."
  (let ((heading (org-element-lineage
                  (or element (org-element-at-point))
                  '(headline inlinetask org-data)
                  'with-self)))
    (when heading
      (unless (or (org-element-type-p heading 'inlinetask)
                  (not (org-element-contents-begin heading)))
        (let ((pos (point)))
          (goto-char (org-element-contents-begin heading))
          (if (re-search-forward
               org-outline-regexp-bol
               (org-element-end heading)
               t)
              (progn (goto-char (match-beginning 0)) t)
            (goto-char pos) nil))))))

(defun org-get-next-sibling ()
  "Move to next heading of the same level, and return point.
If there is no such heading, return nil.
This is like outline-next-sibling, but invisible headings are ok."
  (let ((level (funcall outline-level)))
    (outline-next-heading)
    (while (and (not (eobp)) (> (funcall outline-level) level))
      (outline-next-heading))
    (unless (or (eobp) (< (funcall outline-level) level))
      (point))))

(defun org-get-previous-sibling ()
  "Move to previous heading of the same level, and return point.
If there is no such heading, return nil."
  (let ((opoint (point))
	(level (funcall outline-level)))
    (outline-previous-heading)
    (when (and (/= (point) opoint) (outline-on-heading-p t))
      (while (and (> (funcall outline-level) level)
		  (not (bobp)))
	(outline-previous-heading))
      (unless (< (funcall outline-level) level)
        (point)))))

(defun org-end-of-subtree (&optional invisible-ok to-heading element)
  "Goto to the end of a visible subtree at point or ELEMENT and return point.
The subtree is considered at first heading parent containing point or
ELEMENT.

When end of the subtree has blank lines, move point before these blank
lines.

When INVISIBLE-OK is non-nil, ignore visibility.

When before first heading, goto `point-max' minus blank lines.
When TO-HEADING is non-nil, go to the next heading or `point-max'."
  (when element
    (setq element (org-element-lineage
                   element
                   '(headline)
                   'include-self))
    (goto-char (org-element-begin element)))
  (unless (and invisible-ok element)
    (org-back-to-heading-or-point-min invisible-ok)
    (setq element
          (org-element-lineage
           (org-element-at-point)
           '(headline)
           'include-self)))
  (if (org-element-type-p element 'headline)
      (goto-char (org-element-end element))
    (goto-char (point-max)))
  (unless to-heading
    (when (memq (preceding-char) '(?\n ?\^M))
      ;; Go to end of line before heading
      (forward-char -1)
      ;; Skip blank lines
      (skip-chars-backward "\n\r\t ")))
  (point))

(defun org-end-of-meta-data (&optional full)
  "Skip planning line and properties drawer in current entry.

When optional argument FULL is t, also skip planning information,
clocking lines and any kind of drawer.

When FULL is non-nil but not t, skip planning information,
properties, clocking lines and logbook drawers."
  (org-back-to-heading t)
  (forward-line)
  ;; Skip planning information.
  (when (looking-at-p org-planning-line-re) (forward-line))
  ;; Skip property drawer.
  (when (looking-at org-property-drawer-re)
    (goto-char (match-end 0))
    (forward-line))
  ;; When FULL is not nil, skip more.
  (when (and full (not (org-at-heading-p)))
    (catch 'exit
      (let ((end (save-excursion (outline-next-heading) (point)))
	    (re (concat "[ \t]*$" "\\|" org-clock-line-re)))
	(while (not (eobp))
	  (cond ;; Skip clock lines.
	   ((looking-at-p re) (forward-line))
	   ;; Skip logbook drawer.
	   ((looking-at-p org-logbook-drawer-re)
	    (if (re-search-forward "^[ \t]*:END:[ \t]*$" end t)
		(forward-line)
	      (throw 'exit t)))
	   ;; When FULL is t, skip regular drawer too.
	   ((and (eq full t) (looking-at-p org-drawer-regexp))
	    (if (re-search-forward "^[ \t]*:END:[ \t]*$" end t)
		(forward-line)
	      (throw 'exit t)))
	   (t (throw 'exit t))))))))

(defun org--line-fully-invisible-p ()
  "Return non-nil if the current line is fully invisible."
  (let ((line-beg (line-beginning-position))
	(line-pos (1- (line-end-position)))
	(is-invisible t))
    (while (and (< line-beg line-pos) is-invisible)
      (setq is-invisible (org-invisible-p line-pos))
      (setq line-pos (1- line-pos)))
    is-invisible))

(defun org-forward-heading-same-level (arg &optional invisible-ok)
  "Move forward to the ARG'th subheading at same level as this one.
Stop at the first and last subheadings of a superior heading.
Normally this only looks at visible headings, but when INVISIBLE-OK is
non-nil it will also look at invisible ones."
  (interactive "p")
  (let ((backward? (and arg (< arg 0))))
    (if (org-before-first-heading-p)
	(if backward? (goto-char (point-min)) (outline-next-heading))
      (org-back-to-heading invisible-ok)
      (unless backward? (end-of-line))	;do not match current headline
      (let ((level (org-current-level))
	    (f (if backward? #'re-search-backward #'re-search-forward))
	    (count (if arg (abs arg) 1))
	    (result (point)))
	(while (and (> count 0)
		    (funcall f org-outline-regexp-bol nil 'move))
	  (let ((l (- (match-end 0) (match-beginning 0) 1)))
	    (cond ((< l level) (setq count 0))
		  ((and (= l level)
			(or invisible-ok
			    ;; FIXME: See commit a700fadd72 and the
			    ;; related discussion on why using
			    ;; `org--line-fully-invisible-p' is needed
			    ;; here, which is to serve the needs of an
			    ;; external package.  If the change is
			    ;; wrong regarding Org itself, it should
			    ;; be removed.
			    (not (org--line-fully-invisible-p))))
		   (cl-decf count)
		   (when (= l level) (setq result (point)))))))
	(goto-char result))
      (forward-line 0))))

(defun org-backward-heading-same-level (arg &optional invisible-ok)
  "Move backward to the ARG'th subheading at same level as this one.
Stop at the first and last subheadings of a superior heading."
  (interactive "p")
  (org-forward-heading-same-level (if arg (- arg) -1) invisible-ok))

(defun org-next-visible-heading (arg)
  "Move to the next visible heading line.
With ARG, repeats or can move backward if negative."
  (interactive "p")
  (let ((regexp (concat "^" (org-get-limited-outline-regexp))))
    (if (< arg 0)
	(forward-line 0)
      (end-of-line))
    (while (and (< arg 0) (re-search-backward regexp nil :move))
      (unless (bobp)
	(when (org-invisible-p nil t)
	  (goto-char (org-fold-previous-visibility-change))
          (unless (looking-at-p regexp)
            (re-search-backward regexp nil :mode))))
      (cl-incf arg))
    (while (and (> arg 0) (re-search-forward regexp nil :move))
      (when (org-invisible-p nil t)
	(goto-char (org-fold-next-visibility-change))
        (skip-chars-forward " \t\n")
	(end-of-line))
      (cl-decf arg))
    (if (> arg 0) (goto-char (point-max)) (forward-line 0))))

(defun org-previous-visible-heading (arg)
  "Move to the previous visible heading.
With ARG, repeats or can move forward if negative."
  (interactive "p")
  (org-next-visible-heading (- arg)))

(defun org-forward-paragraph (&optional arg)
  "Move forward by a paragraph, or equivalent, unit.

With argument ARG, do it ARG times;
a negative argument ARG = -N means move backward N paragraphs.

The function moves point between two structural
elements (paragraphs, tables, lists, etc.).

It also provides the following special moves for convenience:

  - on a table or a property drawer, move to its beginning;
  - on comment, example, export, source and verse blocks, stop
    at blank lines;
  - skip consecutive clocks, diary S-exps, and keywords."
  (interactive "^p")
  (unless arg (setq arg 1))
  (if (< arg 0) (org-backward-paragraph (- arg))
    (while (and (> arg 0) (not (eobp)))
      (org--forward-paragraph-once)
      (cl-decf arg))
    ;; Return moves left.
    arg))

(defun org-backward-paragraph (&optional arg)
  "Move backward by a paragraph, or equivalent, unit.

With argument ARG, do it ARG times;
a negative argument ARG = -N means move forward N paragraphs.

The function moves point between two structural
elements (paragraphs, tables, lists, etc.).

It also provides the following special moves for convenience:

  - on a table or a property drawer, move to its beginning;
  - on comment, example, export, source and verse blocks, stop
    at blank lines;
  - skip consecutive clocks, diary S-exps, and keywords."
  (interactive "^p")
  (unless arg (setq arg 1))
  (if (< arg 0) (org-forward-paragraph (- arg))
    (while (and (> arg 0) (not (bobp)))
      (org--backward-paragraph-once)
      (cl-decf arg))
    ;; Return moves left.
    arg))

(defvar org--single-lines-list-is-paragraph t
  "Treat plain lists with single line items as a whole paragraph")

(defun org--paragraph-at-point ()
  "Return paragraph, or equivalent, element at point.

Paragraph element at point is the element at point, with the
following special cases:

- treat table rows (resp. node properties) as the table
  \(resp. property drawer) containing them.

- treat plain lists with an item every line as a whole.

- treat consecutive keywords, clocks, and diary-sexps as a single
  block.

Function may return a real element, or a pseudo-element with type
`pseudo-paragraph'."
  (let* ((e (org-element-at-point))
	 (type (org-element-type e))
	 ;; If we need to fake a new pseudo-element, triplet is
	 ;;
	 ;;   (BEG END PARENT)
	 ;;
	 ;; where BEG and END are element boundaries, and PARENT the
	 ;; element containing it, or nil.
	 (triplet
	  (cond
	   ((memq type '(table property-drawer))
	    (list (org-element-begin e)
		  (org-element-end e)
		  (org-element-parent e)))
	   ((memq type '(node-property table-row))
	    (let ((e (org-element-parent e)))
	      (list (org-element-begin e)
		    (org-element-end e)
		    (org-element-parent e))))
	   ((memq type '(clock diary-sexp keyword))
	    (let* ((regexp (pcase type
			     (`clock org-clock-line-re)
			     (`diary-sexp "%%(")
			     (_ org-keyword-regexp)))
		   (end (if (< 0 (org-element-post-blank e))
			    (org-element-end e)
			  (org-with-wide-buffer
			   (forward-line)
			   (while (looking-at regexp) (forward-line))
			   (skip-chars-forward " \t\n")
			   (line-beginning-position))))
		   (begin (org-with-point-at (org-element-begin e)
			    (while (and (not (bobp)) (looking-at regexp))
			      (forward-line -1))
			    ;; We may have gotten one line too far.
			    (if (looking-at regexp)
				(point)
			      (line-beginning-position 2)))))
	      (list begin end (org-element-parent e))))
	   ;; Find the full plain list containing point, the check it
	   ;; contains exactly one line per item.
	   ((let ((l (org-element-lineage e 'plain-list t)))
	      (while (org-element-type-p
                      (org-element-parent l)
                      '(item plain-list))
		(setq l (org-element-parent l)))
	      (and l org--single-lines-list-is-paragraph
		   (org-with-point-at (org-element-post-affiliated l)
		     (forward-line (length (org-element-property :structure l)))
		     (= (point) (org-element-contents-end l)))
		   ;; Return value.
		   (list (org-element-begin l)
			 (org-element-end l)
			 (org-element-parent l)))))
	   (t nil))))			;no triplet: return element
    (pcase triplet
      (`(,b ,e ,p)
       (org-element-create
	'pseudo-paragraph
	(list :begin b :end e :parent p :post-blank 0 :post-affiliated b)))
      (_ e))))

(defun org--forward-paragraph-once ()
  "Move forward to end of paragraph or equivalent, once.
See `org-forward-paragraph'."
  (interactive)
  (save-restriction
    (widen)
    (skip-chars-forward " \t\n")
    (cond
     ((eobp) nil)
     ;; When inside a folded part, move out of it.
     ((when (org-invisible-p nil t)
        (goto-char (cdr (org-fold-get-region-at-point)))
        (forward-line)
        t))
     (t
      (let* ((element (org--paragraph-at-point))
	     (type (org-element-type element))
	     (contents-begin (org-element-contents-begin element))
	     (end (org-element-end element))
	     (post-affiliated (org-element-post-affiliated element)))
	(cond
	 ((eq type 'plain-list)
	  (forward-char)
	  (org--forward-paragraph-once))
	 ;; If the element is folded, skip it altogether.
         ((when (org-with-point-at post-affiliated (org-invisible-p (line-end-position) t))
            (goto-char (cdr (org-fold-get-region-at-point
			     nil
			     (org-with-point-at post-affiliated
			       (line-end-position)))))
	    (forward-line)
	    t))
	 ;; At a greater element, move inside.
	 ((and contents-begin
	       (> contents-begin (point))
	       (not (eq type 'paragraph)))
	  (goto-char contents-begin)
	  ;; Items and footnote definitions contents may not start at
	  ;; the beginning of the line.  In this case, skip until the
	  ;; next paragraph.
	  (cond
	   ((not (bolp)) (org--forward-paragraph-once))
	   ((org-previous-line-empty-p) (forward-line -1))
	   (t nil)))
	 ;; Move between empty lines in some blocks.
	 ((memq type '(comment-block example-block export-block src-block
				     verse-block))
	  (let ((contents-start
		 (org-with-point-at post-affiliated
		   (line-beginning-position 2))))
	    (if (< (point) contents-start)
		(goto-char contents-start)
	      (let ((contents-end
		     (org-with-point-at end
		       (skip-chars-backward " \t\n")
		       (line-beginning-position))))
		(cond
		 ((>= (point) contents-end)
		  (goto-char end)
		  (skip-chars-backward " \t\n")
		  (forward-line))
		 ((re-search-forward "^[ \t]*\n" contents-end :move)
		  (forward-line -1))
		 (t nil))))))
	 (t
	  ;; Move to element's end.
	  (goto-char end)
	  (skip-chars-backward " \t\n")
	  (forward-line))))))))

(defun org--backward-paragraph-once ()
  "Move backward to start of paragraph or equivalent, once.
See `org-backward-paragraph'."
  (interactive)
  (save-restriction
    (widen)
    (cond
     ((bobp) nil)
     ;; Blank lines at the beginning of the buffer.
     ((and (org-match-line "^[ \t]*$")
	   (save-excursion (skip-chars-backward " \t\n") (bobp)))
      (goto-char (point-min)))
     ;; When inside a folded part, move out of it.
     ((when (org-invisible-p (1- (point)) t)
        (goto-char (1- (car (org-fold-get-region-at-point nil (1- (point))))))
	(org--backward-paragraph-once)
	t))
     (t
      (let* ((element (org--paragraph-at-point))
	     (type (org-element-type element))
	     (begin (org-element-begin element))
	     (post-affiliated (org-element-post-affiliated element))
	     (contents-end (org-element-contents-end element))
	     (end (org-element-end element))
	     (parent (org-element-parent element))
	     (reach
	      ;; Move to the visible empty line above position P, or
	      ;; to position P.  Return t.
	      (lambda (p)
		(goto-char p)
		(when (and (org-previous-line-empty-p)
			   (let ((end (line-end-position 0)))
			     (or (= end (point-min))
				 (not (org-invisible-p (1- end))))))
		  (forward-line -1))
		t)))
	(cond
	 ;; Already at the beginning of an element.
	 ((= begin (point))
	  (cond
	   ;; There is a blank line above.  Move there.
	   ((and (org-previous-line-empty-p)
		 (not (org-invisible-p (1- (line-end-position 0)))))
	    (forward-line -1))
	   ;; At the beginning of the first element within a greater
	   ;; element.  Move to the beginning of the greater element.
	   ((and parent
                 (not (org-element-type-p parent 'section))
                 (= begin (org-element-contents-begin parent)))
	    (funcall reach (org-element-begin parent)))
	   ;; Since we have to move anyway, find the beginning
	   ;; position of the element above.
	   (t
	    (forward-char -1)
	    (org--backward-paragraph-once))))
	 ;; Skip paragraphs at the very beginning of footnote
	 ;; definitions or items.
	 ((and (eq type 'paragraph)
	       (org-with-point-at begin (not (bolp))))
	  (funcall reach (progn (goto-char begin) (line-beginning-position))))
	 ;; If the element is folded, skip it altogether.
	 ((org-with-point-at post-affiliated (org-invisible-p (line-end-position) t))
	  (funcall reach begin))
	 ;; At the end of a greater element, move inside.
	 ((and contents-end
	       (<= contents-end (point))
	       (not (eq type 'paragraph)))
	  (cond
	   ((memq type '(footnote-definition plain-list))
	    (skip-chars-backward " \t\n")
	    (org--backward-paragraph-once))
	   ((= contents-end (point))
	    (forward-char -1)
	    (org--backward-paragraph-once))
	   (t
	    (goto-char contents-end))))
	 ;; Move between empty lines in some blocks.
	 ((and (memq type '(comment-block example-block export-block src-block
					  verse-block))
	       (let ((contents-start
		      (org-with-point-at post-affiliated
			(line-beginning-position 2))))
		 (when (> (point) contents-start)
		   (let ((contents-end
			  (org-with-point-at end
			    (skip-chars-backward " \t\n")
			    (line-beginning-position))))
		     (if (> (point) contents-end)
			 (progn (goto-char contents-end) t)
		       (skip-chars-backward " \t\n" begin)
		       (re-search-backward "^[ \t]*\n" contents-start :move)
		       t))))))
	 ;; Move to element's start.
	 (t
	  (funcall reach begin))))))))

(defun org-forward-element ()
  "Move forward by one element.
Move to the next element at the same level, when possible."
  (interactive)
  (cond ((eobp) (user-error "Cannot move further down"))
	((org-with-limited-levels (org-at-heading-p))
	 (let ((origin (point)))
	   (goto-char (org-end-of-subtree nil t))
	   (unless (org-with-limited-levels (org-at-heading-p))
	     (goto-char origin)
	     (user-error "Cannot move further down"))))
	(t
	 (let* ((elem (org-element-at-point))
		(end (org-element-end elem))
		(parent (org-element-parent elem)))
	   (cond ((and parent (= (org-element-contents-end parent) end))
		  (goto-char (org-element-end parent)))
		 ((integer-or-marker-p end) (goto-char end))
		 (t (message "No element at point")))))))

(defun org-backward-element ()
  "Move backward by one element.
Move to the previous element at the same level, when possible."
  (interactive)
  (cond ((bobp) (user-error "Cannot move further up"))
	((org-with-limited-levels (org-at-heading-p))
	 ;; At a headline, move to the previous one, if any, or stay
	 ;; here.
	 (let ((origin (point)))
	   (org-with-limited-levels (org-backward-heading-same-level 1))
	   ;; When current headline has no sibling above, move to its
	   ;; parent.
	   (when (= (point) origin)
	     (or (org-with-limited-levels (org-up-heading-safe))
		 (progn (goto-char origin)
			(user-error "Cannot move further up"))))))
	(t
	 (let* ((elem (org-element-at-point))
		(beg (org-element-begin elem)))
	   (cond
	    ;; Move to beginning of current element if point isn't
	    ;; there already.
	    ((null beg) (message "No element at point"))
	    ((/= (point) beg) (goto-char beg))
	    (t (goto-char beg)
	       (skip-chars-backward " \r\t\n")
	       (unless (bobp)
		 (let ((prev (org-element-at-point)))
		   (goto-char (org-element-begin prev))
		   (while (and (setq prev (org-element-parent prev))
			       (<= (org-element-end prev) beg))
		     (goto-char (org-element-begin prev)))))))))))

(defun org-up-element ()
  "Move to upper element."
  (interactive)
  (if (org-with-limited-levels (org-at-heading-p))
      (unless (org-up-heading-safe) (user-error "No surrounding element"))
    (let* ((elem (org-element-at-point))
	   (parent (org-element-parent elem)))
      ;; Skip sections
      (when (org-element-type-p parent 'section)
        (setq parent (org-element-parent parent)))
      (if (and parent
               (not (org-element-type-p parent 'org-data)))
          (goto-char (org-element-begin parent))
	(if (org-with-limited-levels (org-before-first-heading-p))
	    (user-error "No surrounding element")
	  (org-with-limited-levels (org-back-to-heading)))))))

(defun org-down-element ()
  "Move to inner element."
  (interactive)
  (let ((element (org-element-at-point)))
    (cond
     ((org-element-type-p element '(plain-list table))
      (goto-char (org-element-contents-begin element))
      (forward-char))
     ((org-element-type-p element org-element-greater-elements)
      ;; If contents are hidden, first disclose them.
      (when (org-invisible-p (line-end-position)) (org-cycle))
      (goto-char (or (org-element-contents-begin element)
		     (user-error "No content for this element"))))
     (t (user-error "No inner element")))))

(defun org-drag-element-backward ()
  "Move backward element at point."
  (interactive)
  (let ((elem (or (org-element-at-point)
		  (user-error "No element at point"))))
    (if (org-element-type-p elem 'headline)
	;; Preserve point when moving a whole tree, even if point was
	;; on blank lines below the headline.
	(let ((offset (skip-chars-backward " \t\n")))
	  (unwind-protect (org-move-subtree-up)
	    (forward-char (- offset))))
      (let ((prev-elem
	     (save-excursion
	       (goto-char (org-element-begin elem))
	       (skip-chars-backward " \r\t\n")
	       (unless (bobp)
		 (let* ((beg (org-element-begin elem))
			(prev (org-element-at-point))
			(up prev))
		   (while (and (setq up (org-element-parent up))
			       (<= (org-element-end up) beg))
		     (setq prev up))
		   prev)))))
	;; Error out if no previous element or previous element is
	;; a parent of the current one.
	(if (or (not prev-elem) (org-element-nested-p elem prev-elem))
	    (user-error "Cannot drag element backward")
	  (let ((pos (point)))
	    (org-element-swap-A-B prev-elem elem)
	    (goto-char (+ (org-element-begin prev-elem)
			  (- pos (org-element-begin elem))))))))))

(defun org-drag-element-forward ()
  "Move forward element at point."
  (interactive)
  (let* ((pos (point))
	 (elem (or (org-element-at-point)
		   (user-error "No element at point"))))
    (when (= (point-max) (org-element-end elem))
      (user-error "Cannot drag element forward"))
    (goto-char (org-element-end elem))
    (let ((next-elem (org-element-at-point)))
      (when (or (org-element-nested-p elem next-elem)
		(and (org-element-type-p next-elem 'headline)
		     (not (org-element-type-p elem 'headline))))
	(goto-char pos)
	(user-error "Cannot drag element forward"))
      ;; Compute new position of point: it's shifted by NEXT-ELEM
      ;; body's length (without final blanks) and by the length of
      ;; blanks between ELEM and NEXT-ELEM.
      (let ((size-next (- (save-excursion
			    (goto-char (org-element-end next-elem))
			    (skip-chars-backward " \r\t\n")
			    (forward-line)
			    ;; Small correction if buffer doesn't end
			    ;; with a newline character.
			    (if (and (eolp) (not (bolp))) (1+ (point)) (point)))
			  (org-element-begin next-elem)))
	    (size-blank (- (org-element-end elem)
			   (save-excursion
			     (goto-char (org-element-end elem))
			     (skip-chars-backward " \r\t\n")
			     (forward-line)
			     (point)))))
	(org-element-swap-A-B elem next-elem)
	(goto-char (+ pos size-next size-blank))))))

(defun org-drag-line-forward (arg)
  "Drag the line at point ARG lines forward."
  (interactive "p")
  (dotimes (_ (abs arg))
    (let ((c (current-column)))
      (if (< 0 arg)
	  (progn
	    (forward-line 1)
	    (transpose-lines 1)
	    (forward-line -1))
	(transpose-lines 1)
	(forward-line -2))
      (org-move-to-column c))))

(defun org-drag-line-backward (arg)
  "Drag the line at point ARG lines backward."
  (interactive "p")
  (org-drag-line-forward (- arg)))

(defun org-mark-element ()
  "Put point at beginning of this element, mark at end.

Interactively, if this command is repeated or (in Transient Mark
mode) if the mark is active, it marks the next element after the
ones already marked."
  (interactive)
  (let (deactivate-mark)
    (if (and (called-interactively-p 'any)
	     (or (and (eq last-command this-command) (mark t))
		 (and transient-mark-mode mark-active)))
	(set-mark
	 (save-excursion
	   (goto-char (mark))
	   (goto-char (org-element-end (org-element-at-point)))
	   (point)))
      (let ((element (org-element-at-point)))
	(end-of-line)
	(push-mark (min (point-max) (org-element-end element)) t t)
	(goto-char (org-element-begin element))))))

(defun org-narrow-to-element ()
  "Narrow buffer to current element.
Use the command `\\[widen]' to see the whole buffer again."
  (interactive)
  (let ((elem (org-element-at-point)))
    (cond
     ((eq (car elem) 'headline)
      (narrow-to-region
       (org-element-begin elem)
       (org-element-end elem)))
     ((memq (car elem) org-element-greater-elements)
      (narrow-to-region
       (org-element-contents-begin elem)
       (org-element-contents-end elem)))
     (t
      (narrow-to-region
       (org-element-begin elem)
       (org-element-end elem))))))

(defun org-transpose-element ()
  "Transpose current and previous elements, keeping blank lines between.
Point is moved after both elements."
  (interactive)
  (org-skip-whitespace)
  (let ((end (org-element-end (org-element-at-point))))
    (org-drag-element-backward)
    (goto-char end)))

(defun org-unindent-buffer ()
  "Un-indent the visible part of the buffer.
Relative indentation (between items, inside blocks, etc.) isn't
modified."
  (interactive)
  (unless (eq major-mode 'org-mode)
    (user-error "Cannot un-indent a buffer not in Org mode"))
  (letrec ((parse-tree (org-element-parse-buffer 'greater-element nil 'defer))
	   (unindent-tree
	    (lambda (contents)
	      (dolist (element (reverse contents))
		(if (org-element-type-p element '(headline section))
		    (funcall unindent-tree (org-element-contents element))
		  (save-excursion
		    (save-restriction
		      (narrow-to-region
		       (org-element-begin element)
		       (org-element-end element))
		      (org-do-remove-indentation))))))))
    (funcall unindent-tree (org-element-contents parse-tree))))

(defun org-make-options-regexp (kwds &optional extra)
  "Make a regular expression for keyword lines.
KWDS is a list of keywords, as strings.  Optional argument EXTRA,
when non-nil, is a regexp matching keywords names."
  (concat "^[ \t]*#\\+\\("
	  (regexp-opt kwds)
	  (and extra (concat (and kwds "\\|") extra))
	  "\\):[ \t]*\\(.*\\)"))

\f
;;; Conveniently switch to Info nodes

(defun org-info-find-node (&optional nodename)
  "Find Info documentation NODENAME or Org documentation according context.
Started from `gnus-info-find-node'."
  (interactive)
  (Info-goto-node
   (or nodename
       (let ((default-org-info-node "(org) Top"))
         (cond
          ((eq 'org-agenda-mode major-mode) "(org) Agenda Views")
          ((eq 'org-mode major-mode)
           (let* ((context (org-element-at-point))
                  (element-info-nodes ; compare to `org-element-all-elements'.
                   `((babel-call . "(org) Evaluating Code Blocks")
                     (center-block . "(org) Paragraphs")
                     (clock . ,default-org-info-node)
                     (comment . "(org) Comment Lines")
                     (comment-block . "(org) Comment Lines")
                     (diary-sexp . ,default-org-info-node)
                     (drawer . "(org) Drawers")
                     (dynamic-block . "(org) Dynamic Blocks")
                     (example-block . "(org) Literal Examples")
                     (export-block . "(org) ASCII/Latin-1/UTF-8 export")
                     (fixed-width . ,default-org-info-node)
                     (footnote-definition . "(org) Creating Footnotes")
                     (headline . "(org) Document Structure")
                     (horizontal-rule . "(org) Built-in Table Editor")
                     (inlinetask . ,default-org-info-node)
                     (item . "(org) Plain Lists")
                     (keyword . "(org) Per-file keywords")
                     (latex-environment . "(org) LaTeX Export")
                     (node-property . "(org) Properties and Columns")
                     (paragraph . "(org) Paragraphs")
                     (plain-list . "(org) Plain Lists")
                     (planning . "(org) Deadlines and Scheduling")
                     (property-drawer . "(org) Properties and Columns")
                     (quote-block . "(org) Paragraphs")
                     (section . ,default-org-info-node)
                     (special-block . ,default-org-info-node)
                     (src-block . "(org) Working with Source Code")
                     (table . "(org) Tables")
                     (table-row . "(org) Tables")
                     (verse-block . "(org) Paragraphs"))))
             (or (cdr (assoc (car context) element-info-nodes))
                 default-org-info-node)))
          (t default-org-info-node))))))

\f
;;; Finish up

(add-hook 'org-mode-hook     ;remove folds when changing major mode
	  (lambda () (add-hook 'change-major-mode-hook
			  'org-fold-show-all 'append 'local)))

(provide 'org)

(run-hooks 'org-load-hook)

;;; org.el ends here

debug log:

solving 2c35bed5f ...
found 2c35bed5f in https://list.orgmode.org/orgmode/87h66qcxju.fsf@gmail.com/
found 2e91dd508 in https://git.savannah.gnu.org/cgit/emacs/org-mode.git
preparing index
index prepared:
100644 2e91dd508e2b0d1e38e6be0d71c3eb2dfa9a4364	lisp/org.el

applying [1/1] https://list.orgmode.org/orgmode/87h66qcxju.fsf@gmail.com/
diff --git a/lisp/org.el b/lisp/org.el
index 2e91dd508..2c35bed5f 100644

Checking patch lisp/org.el...
Applied patch lisp/org.el cleanly.

index at:
100644 2c35bed5f10caabb7595ea8162922301763cbdaa	lisp/org.el

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).