emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
blob 05a73a6093cb14d608734b29b7968c665a14b422 133125 bytes (raw)
name: lisp/org-list.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
 
;;; org-list.el --- Plain lists for Org              -*- lexical-binding: t; -*-
;;
;; Copyright (C) 2004-2022 Free Software Foundation, Inc.
;;
;; Author: Carsten Dominik <carsten.dominik@gmail.com>
;;	   Bastien Guerry <bzg@gnu.org>
;; Keywords: outlines, hypermedia, calendar, wp
;; Homepage: https://orgmode.org
;;
;; 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:

;; This file contains the code dealing with plain lists in Org mode.

;; The core concept behind lists is their structure.  A structure is
;; a snapshot of the list, in the shape of a data tree (see
;; `org-list-struct').

;; Once the list structure is stored, it is possible to make changes
;; on it that will be mirrored to the real list or to get information
;; about the list, using accessors and methods provided in the
;; library.  Most of them require the use of one or two helper
;; functions, namely `org-list-parents-alist' and
;; `org-list-prevs-alist'.

;; Structure is eventually applied to the buffer with
;; `org-list-write-struct'.  This function repairs (bullets,
;; indentation, checkboxes) the list in the process.  It should be
;; called near the end of any function working on structures.

;; Thus, a function applying to lists should usually follow this
;; template:

;; 1. Verify point is in a list and grab item beginning (with the same
;;    function `org-in-item-p').  If the function requires the cursor
;;    to be at item's bullet, `org-at-item-p' is more selective.  It
;;    is also possible to move point to the closest item with
;;    `org-list-search-backward', or `org-list-search-forward',
;;    applied to the function `org-item-beginning-re'.

;; 2. Get list structure with `org-list-struct'.

;; 3. Compute one, or both, helper functions,
;;    (`org-list-parents-alist', `org-list-prevs-alist') depending on
;;    needed accessors.

;; 4. Proceed with the modifications, using methods and accessors.

;; 5. Verify and apply structure to buffer, using
;;    `org-list-write-struct'.

;; 6. If changes made to the list might have modified check-boxes,
;;    call `org-update-checkbox-count-maybe'.

;; Computing a structure can be a costly operation on huge lists (a
;; few thousand lines long).  Thus, code should follow the rule:
;; "collect once, use many".  As a corollary, it is usually a bad idea
;; to use directly an interactive function inside the code, as those,
;; being independent entities, read the whole list structure another
;; time.

;;; Code:

(require 'cl-lib)
(require 'org-macs)
(require 'org-compat)
(require 'org-fold-core)

(defvar org-M-RET-may-split-line)
(defvar org-adapt-indentation)
(defvar org-auto-align-tags)
(defvar org-blank-before-new-entry)
(defvar org-clock-string)
(defvar org-closed-string)
(defvar org-deadline-string)
(defvar org-done-keywords)
(defvar org-drawer-regexp)
(defvar org-element-all-objects)
(defvar org-inhibit-startup)
(defvar org-loop-over-headlines-in-active-region)
(defvar org-odd-levels-only)
(defvar org-outline-regexp-bol)
(defvar org-scheduled-string)
(defvar org-todo-line-regexp)
(defvar org-ts-regexp)
(defvar org-ts-regexp-both)

(declare-function org-at-heading-p "org" (&optional invisible-ok))
(declare-function org-back-to-heading "org" (&optional invisible-ok))
(declare-function org-before-first-heading-p "org" ())
(declare-function org-current-level "org" ())
(declare-function org-element-at-point "org-element" (&optional pom cached-only))
(declare-function org-element-context "org-element" (&optional element))
(declare-function org-element-interpret-data "org-element" (data))
(declare-function org-element-lineage "org-element" (blob &optional types with-self))
(declare-function org-element-macro-interpreter "org-element" (macro ##))
(declare-function org-element-map "org-element" (data types fun &optional info first-match no-recursion with-affiliated))
(declare-function org-element-normalize-string "org-element" (s))
(declare-function org-element-parse-buffer "org-element" (&optional granularity visible-only))
(declare-function org-element-property "org-element" (property element))
(declare-function org-element-put-property "org-element" (element property value))
(declare-function org-element-set-element "org-element" (old new))
(declare-function org-element-type "org-element" (element))
(declare-function org-element-update-syntax "org-element" ())
(declare-function org-end-of-meta-data "org" (&optional full))
(declare-function org-entry-get "org" (pom property &optional inherit literal-nil))
(declare-function org-export-create-backend "ox" (&rest rest) t)
(declare-function org-export-data-with-backend "ox" (data backend info))
(declare-function org-export-get-backend "ox" (name))
(declare-function org-export-get-environment "ox" (&optional backend subtreep ext-plist))
(declare-function org-export-get-next-element "ox" (blob info &optional n))
(declare-function org-export-with-backend "ox" (backend data &optional contents info))
(declare-function org-fix-tags-on-the-fly "org" ())
(declare-function org-get-todo-state "org" ())
(declare-function org-in-block-p "org" (names))
(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-outline-regexp "org-inlinetask" ())
(declare-function org-level-increment "org" ())
(declare-function org-mode "org" ())
(declare-function org-narrow-to-subtree "org" (&optional element))
(declare-function org-outline-level "org" ())
(declare-function org-previous-line-empty-p "org" ())
(declare-function org-reduced-level "org" (L))
(declare-function org-set-tags "org" (tags))
(declare-function org-fold-show-subtree "org-fold" ())
(declare-function org-fold-region "org-fold" (from to flag &optional spec))
(declare-function org-sort-remove-invisible "org" (S))
(declare-function org-time-string-to-seconds "org" (s))
(declare-function org-timer-hms-to-secs "org-timer" (hms))
(declare-function org-timer-item "org-timer" (&optional arg))
(declare-function outline-next-heading "outline" ())
(declare-function outline-previous-heading "outline" ())


\f
;;; Configuration variables

(defgroup org-plain-lists nil
  "Options concerning plain lists in Org mode."
  :tag "Org Plain lists"
  :group 'org-structure)

(defcustom org-cycle-include-plain-lists t
  "When t, make TAB cycle visibility on plain list items.
Cycling plain lists works only when the cursor is on a plain list
item.  When the cursor is on an outline heading, plain lists are
treated as text.  This is the most stable way of handling this,
which is why it is the default.

When this is the symbol `integrate', then integrate plain list
items when cycling, as if they were children of outline headings.

This setting can lead to strange effects when switching visibility
to `children', because the first \"child\" in a subtree decides
what children should be listed.  If that first \"child\" is a
plain list item with an implied large level number, all true
children and grand children of the outline heading will be
exposed in a children' view."
  :group 'org-plain-lists
  :group 'org-cycle
  :type '(choice
	  (const :tag "Never" nil)
	  (const :tag "With cursor in plain list (recommended)" t)
	  (const :tag "As children of outline headings" integrate)))

(defcustom org-list-demote-modify-bullet nil
  "Default bullet type installed when demoting an item.
This is an association list, for each bullet type, this alist will point
to the bullet that should be used when this item is demoted.
For example,

 (setq org-list-demote-modify-bullet
       \\='((\"+\" . \"-\") (\"-\" . \"+\") (\"*\" . \"+\")))

will make

  + Movies
    + Silence of the Lambs
    + My Cousin Vinny
  + Books
    + The Hunt for Red October
    + The Road to Omaha

into

  + Movies
    - Silence of the Lambs
    - My Cousin Vinny
  + Books
    - The Hunt for Red October
    - The Road to Omaha"
  :group 'org-plain-lists
  :type '(repeat
	  (cons
	   (choice :tag "If the current bullet is  "
		   (const "-")
		   (const "+")
		   (const "*")
		   (const "1.")
		   (const "1)"))
	   (choice :tag "demotion will change it to"
		   (const "-")
		   (const "+")
		   (const "*")
		   (const "1.")
		   (const "1)")))))

(defcustom org-plain-list-ordered-item-terminator t
  "The character that makes a line with leading number an ordered list item.
Valid values are ?. and ?\\).  To get both terminators, use t.

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 after updating it:

  `\\[org-element-update-syntax]'"
  :group 'org-plain-lists
  :type '(choice (const :tag "dot like in \"2.\"" ?.)
		 (const :tag "paren like in \"2)\"" ?\))
		 (const :tag "both" t))
  :set (lambda (var val) (set var val)
	 (when (featurep 'org-element) (org-element-update-syntax))))

(defcustom org-list-allow-alphabetical nil
  "Non-nil means single character alphabetical bullets are allowed.

Both uppercase and lowercase are handled.  Lists with more than
26 items will fallback to standard numbering.  Alphabetical
counters like \"[@c]\" will be recognized.

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 after updating it:

  `\\[org-element-update-syntax]'"
  :group 'org-plain-lists
  :version "24.1"
  :type 'boolean
  :set (lambda (var val) (set var val)
	 (when (featurep 'org-element) (org-element-update-syntax))))

(defcustom org-list-two-spaces-after-bullet-regexp nil
  "A regular expression matching bullets that should have 2 spaces after them.
When nil, no bullet will have two spaces after them.  When
a string, it will be used as a regular expression.  When the
bullet type of a list is changed, the new bullet type will be
matched against this regexp.  If it matches, there will be two
spaces instead of one after the bullet in each item of the list."
  :group 'org-plain-lists
  :type '(choice
	  (const :tag "never" nil)
	  (regexp)))

(defcustom org-list-automatic-rules '((checkbox . t)
				      (indent . t))
  "Non-nil means apply set of rules when acting on lists.
\\<org-mode-map>
By default, automatic actions are taken when using
  `\\[org-meta-return]',
  `\\[org-metaright]',
  `\\[org-metaleft]',
  `\\[org-shiftmetaright]',
  `\\[org-shiftmetaleft]',
  `\\[org-ctrl-c-minus]',
  `\\[org-toggle-checkbox]',
  `\\[org-insert-todo-heading]'.

You can disable individually these rules by setting them to nil.
Valid rules are:

checkbox  when non-nil, checkbox statistics is updated each time
          you either insert a new checkbox or toggle a checkbox.
indent    when non-nil, indenting or outdenting list top-item
          with its subtree will move the whole list and
          outdenting a list whose bullet is * to column 0 will
          change that bullet to \"-\"."
  :group 'org-plain-lists
  :version "24.1"
  :type '(alist :tag "Sets of rules"
		:key-type
		(choice
		 (const :tag "Checkbox" checkbox)
		 (const :tag "Indent" indent))
		:value-type
		(boolean :tag "Activate" :value t)))

(defcustom org-list-use-circular-motion nil
  "Non-nil means commands implying motion in lists should be cyclic.
\\<org-mode-map>
In that case, the item following the last item is the first one,
and the item preceding the first item is the last one.

This affects the behavior of
  `\\[org-move-item-up]',
  `\\[org-move-item-down]',
  `\\[org-next-item]',
  `\\[org-previous-item]'."
  :group 'org-plain-lists
  :version "24.1"
  :type 'boolean)

(defvar org-checkbox-statistics-hook nil
  "Hook that is run whenever Org thinks checkbox statistics should be updated.
This hook runs even if checkbox rule in
`org-list-automatic-rules' does not apply, so it can be used to
implement alternative ways of collecting statistics
information.")

(defcustom org-checkbox-hierarchical-statistics t
  "Non-nil means checkbox statistics counts only the state of direct children.
When nil, all boxes below the cookie are counted.
This can be set to nil on a per-node basis using a COOKIE_DATA property
with the word \"recursive\" in the value."
  :group 'org-plain-lists
  :type 'boolean)

(defcustom org-list-indent-offset 0
  "Additional indentation for sub-items in a list.
By setting this to a small number, usually 1 or 2, one can more
clearly distinguish sub-items in a list."
  :group 'org-plain-lists
  :version "24.1"
  :type 'integer)

(defvar org-list-forbidden-blocks '("example" "verse" "src" "export")
  "Names of blocks where lists are not allowed.
Names must be in lower case.")

\f
;;; Predicates and regexps

(defconst org-list-end-re "^[ \t]*\n[ \t]*\n"
  "Regex matching the end of a plain list.")

(defconst org-list-full-item-re
  (concat "^[ \t]*\\(\\(?:[-+*]\\|\\(?:[0-9]+\\|[A-Za-z]\\)[.)]\\)\\(?:[ \t]+\\|$\\)\\)"
	  "\\(?:\\[@\\(?:start:\\)?\\([0-9]+\\|[A-Za-z]\\)\\][ \t]*\\)?"
	  "\\(?:\\(\\[[ X-]\\]\\)\\(?:[ \t]+\\|$\\)\\)?"
	  "\\(?:\\(.*\\)[ \t]+::\\(?:[ \t]+\\|$\\)\\)?")
  "Matches a list item and puts everything into groups:
group 1: bullet
group 2: counter
group 3: checkbox
group 4: description tag")

(defun org-item-re ()
  "Return the correct regular expression for plain lists."
  (let ((term (cond
	       ((eq org-plain-list-ordered-item-terminator t) "[.)]")
	       ((= org-plain-list-ordered-item-terminator ?\)) ")")
	       ((= org-plain-list-ordered-item-terminator ?.) "\\.")
	       (t "[.)]")))
	(alpha (if org-list-allow-alphabetical "\\|[A-Za-z]" "")))
    (concat "\\([ \t]*\\([-+]\\|\\(\\([0-9]+" alpha "\\)" term
	    "\\)\\)\\|[ \t]+\\*\\)\\([ \t]+\\|$\\)")))

(defsubst org-item-beginning-re ()
  "Regexp matching the beginning of a plain list item."
  (concat "^" (org-item-re)))

(defun org-list-at-regexp-after-bullet-p (regexp)
  "Is point at a list item with REGEXP after bullet?"
  (and (org-at-item-p)
       (save-excursion
	 (goto-char (match-end 0))
	 (let ((counter-re (concat "\\(?:\\[@\\(?:start:\\)?"
				   (if org-list-allow-alphabetical
				       "\\([0-9]+\\|[A-Za-z]\\)"
				     "[0-9]+")
				   "\\][ \t]*\\)")))
	   ;; Ignore counter if any
	   (when (looking-at counter-re) (goto-char (match-end 0))))
	 (looking-at regexp))))

(defun org-list-in-valid-context-p ()
  "Is point in a context where lists are allowed?"
  (not (org-in-block-p org-list-forbidden-blocks)))

(defun org-in-item-p ()
  "Return item beginning position when in a plain list, nil otherwise."
  (save-excursion
    (beginning-of-line)
    (let* ((case-fold-search t)
	   (context (org-list-context))
	   (lim-up (car context))
	   (inlinetask-re (and (featurep 'org-inlinetask)
			       (org-inlinetask-outline-regexp)))
	   (item-re (org-item-re))
	   ;; Indentation isn't meaningful when point starts at an empty
	   ;; line or an inline task.
	   (ind-ref (if (or (looking-at "^[ \t]*$")
			    (and inlinetask-re (looking-at inlinetask-re)))
			10000
		      (current-indentation))))
      (cond
       ((eq (nth 2 context) 'invalid) nil)
       ((looking-at item-re) (point))
       (t
	;; Detect if cursor in amidst `org-list-end-re'.  First, count
	;; number HL of hard lines it takes, then call `org-in-regexp'
	;; to compute its boundaries END-BOUNDS.  When point is
	;; in-between, move cursor before regexp beginning.
	(let ((hl 0) (i -1) end-bounds)
	  (when (and (progn
		       (while (setq i (string-match
				       "[\r\n]" org-list-end-re (1+ i)))
			 (setq hl (1+ hl)))
		       (setq end-bounds (org-in-regexp org-list-end-re hl)))
		     (>= (point) (car end-bounds))
		     (< (point) (cdr end-bounds)))
	    (goto-char (car end-bounds))
	    (forward-line -1)))
	;; Look for an item, less indented that reference line.
	(catch 'exit
	  (while t
	    (let ((ind (current-indentation)))
	      (cond
	       ;; This is exactly what we want.
	       ((and (looking-at item-re) (< ind ind-ref))
		(throw 'exit (point)))
	       ;; At upper bound of search or looking at the end of a
	       ;; previous list: search is over.
	       ((<= (point) lim-up) (throw 'exit nil))
	       ((looking-at org-list-end-re) (throw 'exit nil))
	       ;; Skip blocks, drawers, inline-tasks, blank lines
	       ((and (looking-at "^[ \t]*#\\+end_")
		     (re-search-backward "^[ \t]*#\\+begin_" lim-up t)))
	       ((and (looking-at "^[ \t]*:END:")
		     (re-search-backward org-drawer-regexp lim-up t))
		(beginning-of-line))
	       ((and inlinetask-re (looking-at inlinetask-re))
		(org-inlinetask-goto-beginning)
		(forward-line -1))
	       ((looking-at "^[ \t]*$") (forward-line -1))
	       ;; Text at column 0 cannot belong to a list: stop.
	       ((zerop ind) (throw 'exit nil))
	       ;; Normal text less indented than reference line, take
	       ;; it as new reference.
	       ((< ind ind-ref)
		(setq ind-ref ind)
		(forward-line -1))
	       (t (forward-line -1)))))))))))

(defun org-at-item-p ()
  "Is point in a line starting a hand-formatted item?"
  (save-excursion
    (beginning-of-line)
    (and (looking-at (org-item-re)) (org-list-in-valid-context-p))))

(defun org-at-item-bullet-p ()
  "Is point at the bullet of a plain list item?"
  (and (org-at-item-p)
       (not (member (char-after) '(?\  ?\t)))
       (< (point) (match-end 0))))

(defun org-at-item-timer-p ()
  "Is point at a line starting a plain list item with a timer?"
  (org-list-at-regexp-after-bullet-p
   "\\([0-9]+:[0-9]+:[0-9]+\\)[ \t]+::[ \t]+"))

(defun org-at-item-description-p ()
  "Is point at a description list item?"
  (org-list-at-regexp-after-bullet-p "\\(\\S-.+\\)[ \t]+::\\([ \t]+\\|$\\)"))

(defun org-at-item-checkbox-p ()
  "Is point at a line starting a plain-list item with a checklet?"
  (org-list-at-regexp-after-bullet-p "\\(\\[[- X]\\]\\)[ \t]+"))

(defun org-at-item-counter-p ()
  "Is point at a line starting a plain-list item with a counter?"
  (and (org-at-item-p)
       (looking-at org-list-full-item-re)
       (match-string 2)))


\f
;;; Structures and helper functions

(defun org-list-context ()
  "Determine context, and its boundaries, around point.

Context will be a cell like (MIN MAX CONTEXT) where MIN and MAX
are boundaries and CONTEXT is a symbol among `drawer', `block',
`invalid', `inlinetask' and nil.

Contexts `block' and `invalid' refer to `org-list-forbidden-blocks'."
  (save-match-data
    (save-excursion
      (org-with-limited-levels
       (beginning-of-line)
       (let ((case-fold-search t) (pos (point)) beg end context-type
	     ;; Get positions of surrounding headings.  This is the
	     ;; default context.
	     (lim-up (or (save-excursion (and (ignore-errors (org-back-to-heading t))
					      (point)))
			 (point-min)))
	     (lim-down (or (save-excursion (outline-next-heading)) (point-max))))
	 ;; Is point inside a drawer?
	 (let ((end-re "^[ \t]*:END:")
	       (beg-re org-drawer-regexp))
	   (when (save-excursion
		   (and (not (looking-at beg-re))
			(not (looking-at end-re))
			(setq beg (and (re-search-backward beg-re lim-up t)
				       (1+ (point-at-eol))))
			(setq end (or (and (re-search-forward end-re lim-down t)
					   (1- (match-beginning 0)))
				      lim-down))
			(>= end pos)))
	     (setq lim-up beg lim-down end context-type 'drawer)))
	 ;; Is point strictly in a block, and of which type?
	 (let ((block-re "^[ \t]*#\\+\\(begin\\|end\\)_") type)
	   (when (save-excursion
		   (and (not (looking-at block-re))
			(setq beg (and (re-search-backward block-re lim-up t)
				       (1+ (point-at-eol))))
			(looking-at "^[ \t]*#\\+begin_\\(\\S-+\\)")
			(setq type (downcase (match-string 1)))
			(goto-char beg)
			(setq end (or (and (re-search-forward block-re lim-down t)
					   (1- (point-at-bol)))
				      lim-down))
			(>= end pos)
			(equal (downcase (match-string 1)) "end")))
	     (setq lim-up beg lim-down end
		   context-type (if (member type org-list-forbidden-blocks)
				    'invalid 'block))))
	 ;; Is point in an inlinetask?
	 (when (and (featurep 'org-inlinetask)
		    (save-excursion
		      (let* ((beg-re (org-inlinetask-outline-regexp))
			     (end-re (concat beg-re "END[ \t]*$")))
			(and (not (looking-at "^\\*+"))
			     (setq beg (and (re-search-backward beg-re lim-up t)
					    (1+ (point-at-eol))))
			     (not (looking-at end-re))
			     (setq end (and (re-search-forward end-re lim-down t)
					    (1- (match-beginning 0))))
			     (> (point) pos)))))
	   (setq lim-up beg lim-down end context-type 'inlinetask))
	 ;; Return context boundaries and type.
	 (list lim-up lim-down context-type))))))

(defun org-list-struct ()
  "Return structure of list at point.

A list structure is an alist where key is point at item, and
values are:
1. indentation,
2. bullet with trailing whitespace,
3. bullet counter, if any,
4. checkbox, if any,
5. description tag, if any,
6. position at item end.

Thus the following list, where numbers in parens are
point-at-bol:

- [X] first item                             (1)
  1. sub-item 1                              (18)
  5. [@5] sub-item 2                         (34)
  some other text belonging to first item    (55)
- last item                                  (97)
  + tag :: description                       (109)
                                             (131)

will get the following structure:

 ((1 0 \"- \"  nil \"[X]\" nil 97)
  (18 2 \"1. \"  nil nil nil 34)
  (34 2 \"5. \" \"5\" nil nil 55)
  (97 0 \"- \"  nil nil nil 131)
  (109 2 \"+ \" nil nil \"tag\" 131))

Assume point is at an item."
  (save-excursion
    (beginning-of-line)
    (let* ((case-fold-search t)
	   (context (org-list-context))
	   (lim-up (car context))
	   (lim-down (nth 1 context))
	   (text-min-ind 10000)
	   (item-re (org-item-re))
	   (inlinetask-re (and (featurep 'org-inlinetask)
			       (org-inlinetask-outline-regexp)))
	   (beg-cell (cons (point) (current-indentation)))
           itm-lst itm-lst-2 end-lst end-lst-2 struct
	   (assoc-at-point
	    ;; Return association at point.
	    (lambda (ind)
	      (looking-at org-list-full-item-re)
	      (let ((bullet (match-string-no-properties 1)))
		(list (point)
		      ind
		      bullet
		      (match-string-no-properties 2) ; counter
		      (match-string-no-properties 3) ; checkbox
		      ;; Description tag.
		      (and (string-match-p "[-+*]" bullet)
			   (match-string-no-properties 4))))))
	   (end-before-blank
	    ;; Ensure list ends at the first blank line.
	    (lambda ()
	      (skip-chars-backward " \r\t\n")
	      (min (1+ (point-at-eol)) lim-down))))
      ;; 1. Read list from starting item to its beginning, and save
      ;;    top item position and indentation in BEG-CELL.  Also store
      ;;    ending position of items in END-LST.
      (save-excursion
	(catch 'exit
	  (while t
	    (let ((ind (current-indentation)))
	      (cond
	       ((<= (point) lim-up)
		;; At upward limit: if we ended at an item, store it,
		;; else dismiss useless data recorded above BEG-CELL.
		;; Jump to part 2.
		(throw 'exit
		       (setq itm-lst
			     (if (not (looking-at item-re))
				 (memq (assq (car beg-cell) itm-lst) itm-lst)
			       (setq beg-cell (cons (point) ind))
			       (cons (funcall assoc-at-point ind) itm-lst)))))
	       ;; Looking at a list ending regexp.  Dismiss useless
	       ;; data recorded above BEG-CELL.  Jump to part 2.
	       ((looking-at org-list-end-re)
		(throw 'exit
		       (setq itm-lst
			     (memq (assq (car beg-cell) itm-lst) itm-lst))))
	       ;; Point is at an item.  Add data to ITM-LST. It may
	       ;; also end a previous item: save it in END-LST.  If
	       ;; ind is less or equal than BEG-CELL and there is no
	       ;; end at this ind or lesser, this item becomes the new
	       ;; BEG-CELL.
	       ((looking-at item-re)
		(push (funcall assoc-at-point ind) itm-lst)
		(push (cons ind (point)) end-lst)
		(when (< ind text-min-ind) (setq beg-cell (cons (point) ind)))
		(forward-line -1))
	       ;; Skip blocks, drawers, inline tasks, blank lines.
	       ((and (looking-at "^[ \t]*#\\+end_")
		     (re-search-backward "^[ \t]*#\\+begin_" lim-up t)))
	       ((and (looking-at "^[ \t]*:END:")
		     (re-search-backward org-drawer-regexp lim-up t))
		(beginning-of-line))
	       ((and inlinetask-re (looking-at inlinetask-re))
		(org-inlinetask-goto-beginning)
		(forward-line -1))
	       ((looking-at "^[ \t]*$")
		(forward-line -1))
	       ;; From there, point is not at an item.  Interpret
	       ;; line's indentation:
	       ;; - text at column 0 is necessarily out of any list.
	       ;;   Dismiss data recorded above BEG-CELL.  Jump to
	       ;;   part 2.
	       ;; - any other case may be an ending position for an
	       ;;   hypothetical item above.  Store it and proceed.
	       ((zerop ind)
		(throw 'exit
		       (setq itm-lst
			     (memq (assq (car beg-cell) itm-lst) itm-lst))))
	       (t
		(when (< ind text-min-ind) (setq text-min-ind ind))
		(push (cons ind (point)) end-lst)
		(forward-line -1)))))))
      ;; 2. Read list from starting point to its end, that is until we
      ;;    get out of context, or that a non-item line is less or
      ;;    equally indented than BEG-CELL's cdr.  Also, store ending
      ;;    position of items in END-LST-2.
      (catch 'exit
	(while t
	  (let ((ind (current-indentation)))
	    (cond
	     ((>= (point) lim-down)
	      ;; At downward limit: this is de facto the end of the
	      ;; list.  Save point as an ending position, and jump to
	      ;; part 3.
	      (throw 'exit
		     (push (cons 0 (funcall end-before-blank)) end-lst-2)))
	     ;; Looking at a list ending regexp.  Save point as an
	     ;; ending position and jump to part 3.
	     ((looking-at org-list-end-re)
	      (throw 'exit (push (cons 0 (point)) end-lst-2)))
	     ((looking-at item-re)
	      ;; Point is at an item.  Add data to ITM-LST-2. It may
	      ;; also end a previous item, so save it in END-LST-2.
	      (push (funcall assoc-at-point ind) itm-lst-2)
	      (push (cons ind (point)) end-lst-2)
	      (forward-line 1))
	     ;; Skip inline tasks and blank lines along the way
	     ((and inlinetask-re (looking-at inlinetask-re))
	      (org-inlinetask-goto-end))
	     ((looking-at "^[ \t]*$")
	      (forward-line 1))
	     ;; Ind is lesser or equal than BEG-CELL's.  The list is
	     ;; over: store point as an ending position and jump to
	     ;; part 3.
	     ((<= ind (cdr beg-cell))
	      (throw 'exit
		     (push (cons 0 (funcall end-before-blank)) end-lst-2)))
	     ;; Else, if ind is lesser or equal than previous item's,
	     ;; this is an ending position: store it.  In any case,
	     ;; skip block or drawer at point, and move to next line.
	     (t
	      (when (<= ind (nth 1 (car itm-lst-2)))
		(push (cons ind (point)) end-lst-2))
	      (cond
	       ((and (looking-at "^[ \t]*#\\+begin_")
		     (re-search-forward "^[ \t]*#\\+end_" lim-down t)))
	       ((and (looking-at org-drawer-regexp)
		     (re-search-forward "^[ \t]*:END:" lim-down t))))
	      (forward-line 1))))))
      (setq struct (append itm-lst (cdr (nreverse itm-lst-2)))
	    end-lst (append end-lst (cdr (nreverse end-lst-2))))
      ;; 3. Associate each item to its end position.
      (org-list-struct-assoc-end struct end-lst)
      ;; 4. Return STRUCT
      struct)))

(defun org-list-struct-assoc-end (struct end-list)
  "Associate proper ending point to items in STRUCT.

END-LIST is a pseudo-alist where car is indentation and cdr is
ending position.

This function modifies STRUCT."
  (let ((endings end-list))
    (mapc
     (lambda (elt)
       (let ((pos (car elt))
	     (ind (nth 1 elt)))
	 ;; Remove end candidates behind current item.
	 (while (or (<= (cdar endings) pos))
	   (pop endings))
	 ;; Add end position to item assoc.
	 (let ((old-end (nthcdr 6 elt))
	       (new-end (assoc-default ind endings '<=)))
	   (if old-end
	       (setcar old-end new-end)
	     (setcdr elt (append (cdr elt) (list new-end)))))))
     struct)))

(defun org-list-prevs-alist (struct)
  "Return alist between item and previous item in STRUCT."
  (let ((item-end-alist (mapcar (lambda (e) (cons (car e) (nth 6 e)))
				struct)))
    (mapcar (lambda (e)
	      (let ((prev (car (rassq (car e) item-end-alist))))
		(cons (car e) prev)))
	    struct)))

(defun org-list-parents-alist (struct)
  "Return alist between item and parent in STRUCT."
  (let* ((ind-to-ori (list (list (nth 1 (car struct)))))
	 (top-item (org-list-get-top-point struct))
	 (prev-pos (list top-item)))
    (cons prev-pos
	  (mapcar (lambda (item)
		    (let ((pos (car item))
			  (ind (nth 1 item))
			  (prev-ind (caar ind-to-ori)))
		      (push pos prev-pos)
		      (cond
		       ((> prev-ind ind)
			;; A sub-list is over.  Find the associated
			;; origin in IND-TO-ORI.  If it cannot be
			;; found (ill-formed list), set its parent as
			;; the first item less indented.  If there is
			;; none, make it a top-level item.
			(setq ind-to-ori
			      (or (member (assq ind ind-to-ori) ind-to-ori)
                                  (catch 'exit
                                    (mapc
                                     (lambda (e)
                                       (when (< (car e) ind)
                                         (throw 'exit (member e ind-to-ori))))
                                     ind-to-ori)
                                    (list (list ind)))))
			(cons pos (cdar ind-to-ori)))
                       ;; A sub-list starts.  Every item at IND will
                       ;; have previous item as its parent.
		       ((< prev-ind ind)
			(let ((origin (nth 1 prev-pos)))
			  (push (cons ind origin) ind-to-ori)
			  (cons pos origin)))
                       ;; Another item in the same sub-list: it shares
                       ;; the same parent as the previous item.
		       (t (cons pos (cdar ind-to-ori))))))
		  (cdr struct)))))

(defun org-list--delete-metadata ()
  "Delete metadata from the heading at point.
Metadata are tags, planning information and properties drawers."
  (save-match-data
    (org-with-wide-buffer
     (org-set-tags nil)
     (delete-region (line-beginning-position 2)
		    (save-excursion
		      (org-end-of-meta-data)
		      (org-skip-whitespace)
		      (if (eobp) (point) (line-beginning-position)))))))

\f
;;; Accessors

(defsubst org-list-get-nth (n key struct)
  "Return the Nth value of KEY in STRUCT."
  (nth n (assq key struct)))

(defun org-list-set-nth (n key struct new)
  "Set the Nth value of KEY in STRUCT to NEW.
\nThis function modifies STRUCT."
  (setcar (nthcdr n (assq key struct)) new))

(defsubst org-list-get-ind (item struct)
  "Return indentation of ITEM in STRUCT."
  (org-list-get-nth 1 item struct))

(defun org-list-set-ind (item struct ind)
  "Set indentation of ITEM in STRUCT to IND.
\nThis function modifies STRUCT."
  (org-list-set-nth 1 item struct ind))

(defsubst org-list-get-bullet (item struct)
  "Return bullet of ITEM in STRUCT."
  (org-list-get-nth 2 item struct))

(defun org-list-set-bullet (item struct bullet)
  "Set bullet of ITEM in STRUCT to BULLET.
\nThis function modifies STRUCT."
  (org-list-set-nth 2 item struct bullet))

(defsubst org-list-get-counter (item struct)
  "Return counter of ITEM in STRUCT."
  (org-list-get-nth 3 item struct))

(defsubst org-list-get-checkbox (item struct)
  "Return checkbox of ITEM in STRUCT or nil."
  (org-list-get-nth 4 item struct))

(defun org-list-set-checkbox (item struct checkbox)
  "Set checkbox of ITEM in STRUCT to CHECKBOX.
\nThis function modifies STRUCT."
  (org-list-set-nth 4 item struct checkbox))

(defsubst org-list-get-tag (item struct)
  "Return end position of ITEM in STRUCT."
  (org-list-get-nth 5 item struct))

(defun org-list-get-item-end (item struct)
  "Return end position of ITEM in STRUCT."
  (org-list-get-nth 6 item struct))

(defun org-list-get-item-end-before-blank (item struct)
  "Return point at end of ITEM in STRUCT, before any blank line.
Point returned is at end of line."
  (save-excursion
    (goto-char (org-list-get-item-end item struct))
    (skip-chars-backward " \r\t\n")
    (point-at-eol)))

(defun org-list-get-parent (item struct parents)
  "Return parent of ITEM or nil.
STRUCT is the list structure.  PARENTS is the alist of parents,
as returned by `org-list-parents-alist'."
  (let ((parents (or parents (org-list-parents-alist struct))))
    (cdr (assq item parents))))

(defun org-list-has-child-p (item struct)
  "Non-nil if ITEM has a child.

STRUCT is the list structure.

Value returned is the position of the first child of ITEM."
  (let ((ind (org-list-get-ind item struct))
	(child-maybe (car (nth 1 (member (assq item struct) struct)))))
    (when (and child-maybe
	       (< ind (org-list-get-ind child-maybe struct)))
      child-maybe)))

(defun org-list-get-next-item (item _struct prevs)
  "Return next item in same sub-list as ITEM, or nil.
STRUCT is the list structure.  PREVS is the alist of previous
items, as returned by `org-list-prevs-alist'."
  (car (rassq item prevs)))

(defun org-list-get-prev-item (item _struct prevs)
  "Return previous item in same sub-list as ITEM, or nil.
STRUCT is the list structure.  PREVS is the alist of previous
items, as returned by `org-list-prevs-alist'."
  (cdr (assq item prevs)))

(defun org-list-get-subtree (item struct)
  "List all items having ITEM as a common ancestor, or nil.
STRUCT is the list structure."
  (let* ((item-end (org-list-get-item-end item struct))
	 (sub-struct (cdr (member (assq item struct) struct)))
	 items)
    (catch :exit
      (pcase-dolist (`(,pos . ,_) sub-struct)
	(if (< pos item-end)
	    (push pos items)
	  (throw :exit nil))))
    (nreverse items)))

(defun org-list-get-all-items (item struct prevs)
  "List all items in the same sub-list as ITEM.
STRUCT is the list structure.  PREVS is the alist of previous
items, as returned by `org-list-prevs-alist'."
  (let ((prev-item item)
	(next-item item)
	before-item after-item)
    (while (setq prev-item (org-list-get-prev-item prev-item struct prevs))
      (push prev-item before-item))
    (while (setq next-item (org-list-get-next-item next-item struct prevs))
      (push next-item after-item))
    (append before-item (list item) (nreverse after-item))))

(defun org-list-get-children (item _struct parents)
  "List all children of ITEM, or nil.
STRUCT is the list structure.  PARENTS is the alist of parents,
as returned by `org-list-parents-alist'."
  (let (all child)
    (while (setq child (car (rassq item parents)))
      (setq parents (cdr (member (assq child parents) parents)))
      (push child all))
    (nreverse all)))

(defun org-list-get-top-point (struct)
  "Return point at beginning of list.
STRUCT is the list structure."
  (caar struct))

(defun org-list-get-bottom-point (struct)
  "Return point at bottom of list.
STRUCT is the list structure."
  (apply #'max
	 (mapcar (lambda (e) (org-list-get-item-end (car e) struct)) struct)))

(defun org-list-get-list-begin (item struct prevs)
  "Return point at beginning of sub-list ITEM belongs.
STRUCT is the list structure.  PREVS is the alist of previous
items, as returned by `org-list-prevs-alist'."
  (let ((first-item item) prev-item)
    (while (setq prev-item (org-list-get-prev-item first-item struct prevs))
      (setq first-item prev-item))
    first-item))

(defalias 'org-list-get-first-item 'org-list-get-list-begin)

(defun org-list-get-last-item (item struct prevs)
  "Return point at last item of sub-list ITEM belongs.
STRUCT is the list structure.  PREVS is the alist of previous
items, as returned by `org-list-prevs-alist'."
  (let ((last-item item) next-item)
    (while (setq next-item (org-list-get-next-item last-item struct prevs))
      (setq last-item next-item))
    last-item))

(defun org-list-get-list-end (item struct prevs)
  "Return point at end of sub-list ITEM belongs.
STRUCT is the list structure.  PREVS is the alist of previous
items, as returned by `org-list-prevs-alist'."
  (org-list-get-item-end (org-list-get-last-item item struct prevs) struct))

(defun org-list-get-list-type (item struct prevs)
  "Return the type of the list containing ITEM, as a symbol.

STRUCT is the list structure.  PREVS is the alist of previous
items, as returned by `org-list-prevs-alist'.

Possible types are `descriptive', `ordered' and `unordered'.  The
type is determined by the first item of the list."
  (let ((first (org-list-get-list-begin item struct prevs)))
    (cond
     ((string-match-p "[[:alnum:]]" (org-list-get-bullet first struct)) 'ordered)
     ((org-list-get-tag first struct) 'descriptive)
     (t 'unordered))))

(defun org-list-get-item-number (item struct prevs parents)
  "Return ITEM's sequence number.

STRUCT is the list structure.  PREVS is the alist of previous
items, as returned by `org-list-prevs-alist'.  PARENTS is the
alist of ancestors, as returned by `org-list-parents-alist'.

Return value is a list of integers.  Counters have an impact on
that value."
  (let ((get-relative-number
	 (lambda (item struct prevs)
	   ;; Return relative sequence number of ITEM in the sub-list
	   ;; it belongs.  STRUCT is the list structure.  PREVS is
	   ;; the alist of previous items.
	   (let ((seq 0) (pos item) counter)
	     (while (and (not (setq counter (org-list-get-counter pos struct)))
			 (setq pos (org-list-get-prev-item pos struct prevs)))
	       (cl-incf seq))
	     (if (not counter) (1+ seq)
	       (cond
		((string-match "[A-Za-z]" counter)
		 (+ (- (string-to-char (upcase (match-string 0 counter))) 64)
		    seq))
		((string-match "[0-9]+" counter)
		 (+ (string-to-number (match-string 0 counter)) seq))
		(t (1+ seq))))))))
    ;; Cons each parent relative number into return value (OUT).
    (let ((out (list (funcall get-relative-number item struct prevs)))
	  (parent item))
      (while (setq parent (org-list-get-parent parent struct parents))
	(push (funcall get-relative-number parent struct prevs) out))
      ;; Return value.
      out)))


\f
;;; Searching

(defun org-list-search-generic (search re bound noerr)
  "Search a string in valid contexts for lists.
Arguments SEARCH, RE, BOUND and NOERR are similar to those used
in `re-search-forward'."
  (catch 'exit
    (let ((origin (point)))
      (while t
	;; 1. No match: return to origin or bound, depending on NOERR.
	(unless (funcall search re bound noerr)
	  (throw 'exit (and (goto-char (if (memq noerr '(t nil)) origin bound))
			    nil)))
	;; 2. Match in valid context: return point.  Else, continue
	;;    searching.
	(when (org-list-in-valid-context-p) (throw 'exit (point)))))))

(defun org-list-search-backward (regexp &optional bound noerror)
  "Like `re-search-backward' but stop only where lists are recognized.
Arguments REGEXP, BOUND and NOERROR are similar to those used in
`re-search-backward'."
  (org-list-search-generic #'re-search-backward
			   regexp (or bound (point-min)) noerror))

(defun org-list-search-forward (regexp &optional bound noerror)
  "Like `re-search-forward' but stop only where lists are recognized.
Arguments REGEXP, BOUND and NOERROR are similar to those used in
`re-search-forward'."
  (org-list-search-generic #'re-search-forward
			   regexp (or bound (point-max)) noerror))


\f
;;; Methods on structures

(defsubst org-list-bullet-string (bullet)
  "Return BULLET with the correct number of whitespaces.
It determines the number of whitespaces to append by looking at
`org-list-two-spaces-after-bullet-regexp'."
  (save-match-data
    (let ((spaces (if (and org-list-two-spaces-after-bullet-regexp
			   (string-match
			    org-list-two-spaces-after-bullet-regexp bullet))
		      "  "
		    " ")))
      (if (string-match "\\S-+\\([ \t]*\\)" bullet)
	  (replace-match spaces nil nil bullet 1)
	bullet))))

(defun org-list-swap-items (beg-A beg-B struct)
  "Swap item starting at BEG-A with item starting at BEG-B in STRUCT.

Blank lines at the end of items are left in place.  Item
visibility is preserved.  Return the new structure after the
changes.

Assume BEG-A is lesser than BEG-B and that BEG-A and BEG-B belong
to the same sub-list.

This function modifies STRUCT."
  (save-excursion
    (let* ((end-A-no-blank (org-list-get-item-end-before-blank beg-A struct))
	   (end-B-no-blank (org-list-get-item-end-before-blank beg-B struct))
	   (end-A (org-list-get-item-end beg-A struct))
	   (end-B (org-list-get-item-end beg-B struct))
	   (size-A (- end-A-no-blank beg-A))
	   (size-B (- end-B-no-blank beg-B))
	   (body-A (buffer-substring beg-A end-A-no-blank))
	   (body-B (buffer-substring beg-B end-B-no-blank))
	   (between-A-no-blank-and-B (buffer-substring end-A-no-blank beg-B))
	   (sub-A (cons beg-A (org-list-get-subtree beg-A struct)))
	   (sub-B (cons beg-B (org-list-get-subtree beg-B struct)))
	   ;; Store overlays responsible for visibility status.  We
	   ;; also need to store their boundaries as they will be
	   ;; removed from buffer.
	   (overlays
	    (cons
	     (delq nil
		   (mapcar (lambda (o)
			     (and (>= (overlay-start o) beg-A)
				  (<= (overlay-end o) end-A)
				  (list o (overlay-start o) (overlay-end o))))
			   (overlays-in beg-A end-A)))
	     (delq nil
		   (mapcar (lambda (o)
			     (and (>= (overlay-start o) beg-B)
				  (<= (overlay-end o) end-B)
				  (list o (overlay-start o) (overlay-end o))))
			   (overlays-in beg-B end-B))))))
      ;; 1. Move effectively items in buffer.
      (goto-char beg-A)
      (delete-region beg-A end-B-no-blank)
      (insert (concat body-B between-A-no-blank-and-B body-A))
      ;; 2. Now modify struct.  No need to re-read the list, the
      ;;    transformation is just a shift of positions.  Some special
      ;;    attention is required for items ending at END-A and END-B
      ;;    as empty spaces are not moved there.  In others words,
      ;;    item BEG-A will end with whitespaces that were at the end
      ;;    of BEG-B and the same applies to BEG-B.
      (dolist (e struct)
	(let ((pos (car e)))
	  (cond
	   ((< pos beg-A))
	   ((memq pos sub-A)
	    (let ((end-e (nth 6 e)))
	      (setcar e (+ pos (- end-B-no-blank end-A-no-blank)))
	      (setcar (nthcdr 6 e)
		      (+ end-e (- end-B-no-blank end-A-no-blank)))
	      (when (= end-e end-A) (setcar (nthcdr 6 e) end-B))))
	   ((memq pos sub-B)
	    (let ((end-e (nth 6 e)))
	      (setcar e (- (+ pos beg-A) beg-B))
	      (setcar (nthcdr 6 e) (+ end-e (- beg-A beg-B)))
	      (when (= end-e end-B)
		(setcar (nthcdr 6 e)
			(+ beg-A size-B (- end-A end-A-no-blank))))))
	   ((< pos beg-B)
	    (let ((end-e (nth 6 e)))
	      (setcar e (+ pos (- size-B size-A)))
	      (setcar (nthcdr 6 e) (+ end-e (- size-B size-A))))))))
      (setq struct (sort struct #'car-less-than-car))
      ;; Restore visibility status, by moving overlays to their new
      ;; position.
      (dolist (ov (car overlays))
	(move-overlay
	 (car ov)
	 (+ (nth 1 ov) (- (+ beg-B (- size-B size-A)) beg-A))
	 (+ (nth 2 ov) (- (+ beg-B (- size-B size-A)) beg-A))))
      (dolist (ov (cdr overlays))
	(move-overlay (car ov)
		      (+ (nth 1 ov) (- beg-A beg-B))
		      (+ (nth 2 ov) (- beg-A beg-B))))
      ;; Return structure.
      struct)))

(defun org-list-separating-blank-lines-number (pos struct prevs)
  "Return number of blank lines that should separate items in list.

POS is the position of point where `org-list-insert-item' was called.

STRUCT is the list structure.  PREVS is the alist of previous
items, as returned by `org-list-prevs-alist'.

Assume point is at item's beginning.  If the item is alone, apply
some heuristics to guess the result."
  (save-excursion
    (let ((item (point))
	  (insert-blank-p
	   (cdr (assq 'plain-list-item org-blank-before-new-entry)))
	  usr-blank
	  (count-blanks
	   (lambda ()
	     ;; Count blank lines above beginning of line.
	     (save-excursion
	       (count-lines (goto-char (point-at-bol))
			    (progn (skip-chars-backward " \r\t\n")
				   (forward-line)
				   (point)))))))
      (cond
       ;; Trivial cases where there should be none.
       ((not insert-blank-p) 0)
       ;; When `org-blank-before-new-entry' says so, it is 1.
       ((eq insert-blank-p t) 1)
       ;; `plain-list-item' is 'auto.  Count blank lines separating
       ;; neighbors' items in list.
       (t (let ((next-p (org-list-get-next-item item struct prevs)))
	    (cond
	     ;; Is there a next item?
	     (next-p (goto-char next-p)
		     (funcall count-blanks))
	     ;; Is there a previous item?
	     ((org-list-get-prev-item item struct prevs)
	      (funcall count-blanks))
	     ;; User inserted blank lines, trust him.
	     ((and (> pos (org-list-get-item-end-before-blank item struct))
		   (> (save-excursion (goto-char pos)
				      (setq usr-blank (funcall count-blanks)))
		      0))
	      usr-blank)
	     ;; Are there blank lines inside the list so far?
	     ((save-excursion
		(goto-char (org-list-get-top-point struct))
		;; Do not use `org-list-search-forward' so blank lines
		;; in blocks can be counted in.
		(re-search-forward
		 "^[ \t]*$" (org-list-get-item-end-before-blank item struct) t))
	      1)
	     ;; Default choice: no blank line.
	     (t 0))))))))

(defun org-list-insert-item (pos struct prevs &optional checkbox after-bullet)
  "Insert a new list item at POS and return the new structure.
If POS is before first character after bullet of the item, the
new item will be created before the current one.

STRUCT is the list structure.  PREVS is the alist of previous
items, as returned by `org-list-prevs-alist'.

Insert a checkbox if CHECKBOX is non-nil, and string AFTER-BULLET
after the bullet.  Cursor will be after this text once the
function ends.

This function modifies STRUCT."
  (let* ((case-fold-search t)
	 ;; Get information about list: ITEM containing POS, position
	 ;; of point with regards to item start (BEFOREP), blank lines
	 ;; number separating items (BLANK-NB), if we're allowed to
	 ;; (SPLIT-LINE-P).
	 (item
	  (catch :exit
	    (let ((i nil))
	      (pcase-dolist (`(,start ,_ ,_ ,_ ,_ ,_ ,end) struct)
		(cond
		 ((> start pos) (throw :exit i))
		 ((< end pos) nil)	;skip sub-lists before point
		 (t (setq i start))))
	      ;; If no suitable item is found, insert a sibling of the
	      ;; last item in buffer.
	      (or i (caar (reverse struct))))))
	 (item-end (org-list-get-item-end item struct))
	 (item-end-no-blank (org-list-get-item-end-before-blank item struct))
	 (beforep
	  (progn
	    (goto-char item)
	    (looking-at org-list-full-item-re)
	    (<= pos
		(cond
		 ((not (match-beginning 4)) (match-end 0))
		 ;; Ignore tag in a non-descriptive list.
		 ((save-match-data (string-match "[.)]" (match-string 1)))
		  (match-beginning 4))
		 (t (save-excursion
		      (goto-char (match-end 4))
		      (skip-chars-forward " \t")
		      (point)))))))
	 (split-line-p (org-get-alist-option org-M-RET-may-split-line 'item))
	 (blank-nb (org-list-separating-blank-lines-number pos struct prevs))
	 ;; Build the new item to be created.  Concatenate same bullet
	 ;; as item, checkbox, text AFTER-BULLET if provided, and text
	 ;; cut from point to end of item (TEXT-CUT) to form item's
	 ;; BODY.  TEXT-CUT depends on BEFOREP and SPLIT-LINE-P.  The
	 ;; difference of size between what was cut and what was
	 ;; inserted in buffer is stored in SIZE-OFFSET.
	 (ind (org-list-get-ind item struct))
	 (ind-size (if indent-tabs-mode
		       (+ (/ ind tab-width) (mod ind tab-width))
		     ind))
	 (bullet (org-list-bullet-string (org-list-get-bullet item struct)))
	 (box (and checkbox "[ ]"))
	 (text-cut
	  (and (not beforep)
	       split-line-p
	       (progn
		 (goto-char pos)
		 ;; If POS is greater than ITEM-END, then point is in
		 ;; some white lines after the end of the list.  Those
		 ;; must be removed, or they will be left, stacking up
		 ;; after the list.
		 (when (< item-end pos)
		   (delete-region (1- item-end) (point-at-eol)))
		 (skip-chars-backward " \r\t\n")
		 ;; Cut position is after any blank on the line.
		 (save-excursion
		   (skip-chars-forward " \t")
		   (setq pos (point)))
		 (delete-and-extract-region (point) item-end-no-blank))))
	 (body
	  (concat bullet
		  (and box (concat box " "))
		  after-bullet
		  (and text-cut
		       (if (string-match "\\`[ \t]+" text-cut)
			   (replace-match "" t t text-cut)
			 text-cut))))
	 (item-sep (make-string  (1+ blank-nb) ?\n))
	 (item-size (+ ind-size (length body) (length item-sep)))
	 (size-offset (- item-size (length text-cut))))
    ;; Insert effectively item into buffer.
    (goto-char item)
    (indent-to-column ind)
    (insert body item-sep)
    ;; Add new item to STRUCT.
    (dolist (e struct)
      (let ((p (car e)) (end (nth 6 e)))
	(cond
	 ;; Before inserted item, positions don't change but an item
	 ;; ending after insertion has its end shifted by SIZE-OFFSET.
	 ((< p item)
	  (when (> end item)
	    (setcar (nthcdr 6 e) (+ end size-offset))))
	 ;; Item where insertion happens may be split in two parts.
	 ;; In this case, move start by ITEM-SIZE and end by
	 ;; SIZE-OFFSET.
	 ((and (= p item) (not beforep) split-line-p)
	  (setcar e (+ p item-size))
	  (setcar (nthcdr 6 e) (+ end size-offset)))
	 ;; Items starting after modified item fall into two
	 ;; categories.
	 ;;
	 ;; If modified item was split, and current sub-item was
	 ;; located after split point, it was moved to the new item:
	 ;; the part between body start and split point (POS) was
	 ;; removed.  So we compute the length of that part and shift
	 ;; item's positions accordingly.
	 ;;
	 ;; Otherwise, the item was simply shifted by SIZE-OFFSET.
	 ((and split-line-p (not beforep) (>= p pos) (<= p item-end-no-blank))
	  (let ((offset (- pos item ind (length bullet) (length after-bullet))))
	    (setcar e (- p offset))
	    (setcar (nthcdr 6 e) (- end offset))))
	 (t
	  (setcar e (+ p size-offset))
	  (setcar (nthcdr 6 e) (+ end size-offset))))))
    (push (list item ind bullet nil box nil (+ item item-size)) struct)
    (setq struct (sort struct #'car-less-than-car))
    ;; If not BEFOREP, new item must appear after ITEM, so exchange
    ;; ITEM with the next item in list.  Position cursor after bullet,
    ;; counter, checkbox, and label.
    (if beforep
	(goto-char item)
      (setq struct (org-list-swap-items item (+ item item-size) struct))
      (goto-char (org-list-get-next-item
		  item struct (org-list-prevs-alist struct))))
    struct))

(defun org-list-delete-item (item struct)
  "Remove ITEM from the list and return the new structure.

STRUCT is the list structure."
  (let* ((end (org-list-get-item-end item struct))
	 (beg (if (= (org-list-get-bottom-point struct) end)
		  ;; If ITEM ends with the list, delete blank lines
		  ;; before it.
		  (save-excursion
		    (goto-char item)
		    (skip-chars-backward " \r\t\n")
		    (min (1+ (point-at-eol)) (point-max)))
		item)))
    ;; Remove item from buffer.
    (delete-region beg end)
    ;; Remove item from structure and shift others items accordingly.
    ;; Don't forget to shift also ending position when appropriate.
    (let ((size (- end beg)))
      (delq nil (mapcar (lambda (e)
			  (let ((pos (car e)))
			    (cond
			     ((< pos item)
			      (let ((end-e (nth 6 e)))
				(cond
				 ((< end-e item) e)
				 ((= end-e item)
				  (append (butlast e) (list beg)))
				 (t
				  (append (butlast e) (list (- end-e size)))))))
			     ((< pos end) nil)
			     (t
			      (cons (- pos size)
				    (append (butlast (cdr e))
					    (list (- (nth 6 e) size))))))))
			struct)))))

(defun org-list-send-item (item dest struct)
  "Send ITEM to destination DEST.

STRUCT is the list structure.

DEST can have various values.

If DEST is a buffer position, the function will assume it points
to another item in the same list as ITEM, and will move the
latter just before the former.

If DEST is `begin' (respectively `end'), ITEM will be moved at
the beginning (respectively end) of the list it belongs to.

If DEST is a string like \"N\", where N is an integer, ITEM will
be moved at the Nth position in the list.

If DEST is `kill', ITEM will be deleted and its body will be
added to the kill-ring.

If DEST is `delete', ITEM will be deleted.

Visibility of item is preserved.

This function returns, destructively, the new list structure."
  (let* ((prevs (org-list-prevs-alist struct))
	 (item-end (org-list-get-item-end item struct))
	 ;; Grab full item body minus its bullet.
	 (body (org-trim
		(buffer-substring
		 (save-excursion
		   (goto-char item)
		   (looking-at
		    (concat "[ \t]*"
			    (regexp-quote (org-list-get-bullet item struct))))
		   (match-end 0))
		 item-end)))
	 ;; Change DEST into a buffer position.  A trick is needed
	 ;; when ITEM is meant to be sent at the end of the list.
	 ;; Indeed, by setting locally `org-M-RET-may-split-line' to
	 ;; nil and insertion point (INS-POINT) to the first line's
	 ;; end of the last item, we ensure the new item will be
	 ;; inserted after the last item, and not after any of its
	 ;; hypothetical sub-items.
	 (ins-point (cond
		     ((or (eq dest 'kill) (eq dest 'delete)))
		     ((eq dest 'begin)
		      (setq dest (org-list-get-list-begin item struct prevs)))
		     ((eq dest 'end)
		      (setq dest (org-list-get-list-end item struct prevs))
		      (save-excursion
			(goto-char (org-list-get-last-item item struct prevs))
			(point-at-eol)))
		     ((and (stringp dest) (string-match-p "\\`[0-9]+\\'" dest))
		      (let* ((all (org-list-get-all-items item struct prevs))
			     (len (length all))
			     (index (mod (string-to-number dest) len)))
			(if (not (zerop index))
			    (setq dest (nth (1- index) all))
			  ;; Send ITEM at the end of the list.
			  (setq dest (org-list-get-list-end item struct prevs))
			  (save-excursion
			    (goto-char
			     (org-list-get-last-item item struct prevs))
			    (point-at-eol)))))
		     (t dest)))
	 (org-M-RET-may-split-line nil)
	 ;; Store inner overlays (to preserve visibility).
	 (overlays (cl-remove-if (lambda (o) (or (< (overlay-start o) item)
						 (> (overlay-end o) item)))
				 (overlays-in item item-end))))
    (cond
     ((eq dest 'delete) (org-list-delete-item item struct))
     ((eq dest 'kill)
      (kill-new body)
      (org-list-delete-item item struct))
     ((and (integerp dest) (/= item ins-point))
      (setq item (copy-marker item))
      (setq struct (org-list-insert-item ins-point struct prevs nil body))
      ;; 1. Structure returned by `org-list-insert-item' may not be
      ;;    accurate, as it cannot see sub-items included in BODY.
      ;;    Thus, first compute the real structure so far.
      (let ((moved-items
	     (cons (marker-position item)
		   (org-list-get-subtree (marker-position item) struct)))
	    (new-end (org-list-get-item-end (point) struct))
	    (old-end (org-list-get-item-end (marker-position item) struct))
	    (new-item (point))
	    (shift (- (point) item)))
	;; 1.1. Remove the item just created in structure.
	(setq struct (delete (assq new-item struct) struct))
	;; 1.2. Copy ITEM and any of its sub-items at NEW-ITEM.
	(setq struct (sort
		      (append
		       struct
		       (mapcar (lambda (e)
				 (let* ((cell (assq e struct))
					(pos (car cell))
					(end (nth 6 cell)))
				   (cons (+ pos shift)
					 (append (butlast (cdr cell))
						 (list (if (= end old-end)
							   new-end
							 (+ end shift)))))))
			       moved-items))
		      #'car-less-than-car)))
      ;; 2. Restore inner overlays.
      (dolist (o overlays)
	(move-overlay o
		      (+ (overlay-start o) (- (point) item))
		      (+ (overlay-end o) (- (point) item))))
      ;; 3. Eventually delete extra copy of the item and clean marker.
      (prog1 (org-list-delete-item (marker-position item) struct)
	(move-marker item nil)))
     (t struct))))

(defun org-list-struct-outdent (start end struct parents)
  "Outdent items between positions START and END.

STRUCT is the list structure.  PARENTS is the alist of items'
parents, as returned by `org-list-parents-alist'.

START is included, END excluded."
  (let* (acc
	 (out (lambda (cell)
		(let* ((item (car cell))
		       (parent (cdr cell)))
		  (cond
		   ;; Item not yet in zone: keep association.
		   ((< item start) cell)
		   ;; Item out of zone: follow associations in ACC.
		   ((>= item end)
		    (let ((convert (and parent (assq parent acc))))
		      (if convert (cons item (cdr convert)) cell)))
		   ;; Item has no parent: error
		   ((not parent)
		    (error "Cannot outdent top-level items"))
		   ;; Parent is outdented: keep association.
		   ((>= parent start)
		    (push (cons parent item) acc) cell)
		   (t
		    ;; Parent isn't outdented: reparent to grand-parent.
		    (let ((grand-parent (org-list-get-parent
					 parent struct parents)))
		      (push (cons parent item) acc)
		      (cons item grand-parent))))))))
    (mapcar out parents)))

(defun org-list-struct-indent (start end struct parents prevs)
  "Indent items between positions START and END.

STRUCT is the list structure.  PARENTS is the alist of parents
and PREVS is the alist of previous items, returned by,
respectively, `org-list-parents-alist' and
`org-list-prevs-alist'.

START is included and END excluded.

STRUCT may be modified if `org-list-demote-modify-bullet' matches
bullets between START and END."
  (let* (acc
	 (set-assoc (lambda (cell) (push cell acc) cell))
	 (ind
	  (lambda (cell)
	    (let* ((item (car cell))
		   (parent (cdr cell)))
	      (cond
	       ;; Item not yet in zone: keep association.
	       ((< item start) cell)
	       ((>= item end)
		;; Item out of zone: follow associations in ACC.
		(let ((convert (assq parent acc)))
		  (if convert (cons item (cdr convert)) cell)))
	       (t
		;; Item is in zone...
		(let ((prev (org-list-get-prev-item item struct prevs)))
		  ;; Check if bullet needs to be changed.
		  (pcase (assoc (let ((b (org-list-get-bullet item struct))
				      (case-fold-search nil))
				  (cond ((string-match "[A-Z]\\." b) "A.")
					((string-match "[A-Z])" b) "A)")
					((string-match "[a-z]\\." b) "a.")
					((string-match "[a-z])" b) "a)")
					((string-match "[0-9]\\." b) "1.")
					((string-match "[0-9])" b) "1)")
					(t (org-trim b))))
				org-list-demote-modify-bullet)
		    (`(,_ . ,bullet)
		     (org-list-set-bullet
		      item struct (org-list-bullet-string bullet)))
		    (_ nil))
		  (cond
		   ;; First item indented but not parent: error
		   ((and (not prev) (or (not parent) (< parent start)))
		    (user-error "Cannot indent the first item of a list"))
		   ;; First item and parent indented: keep same
		   ;; parent.
		   ((not prev) (funcall set-assoc cell))
		   ;; Previous item not indented: reparent to it.
		   ((< prev start) (funcall set-assoc (cons item prev)))
		   ;; Previous item indented: reparent like it.
		   (t
		    (funcall set-assoc
			     (cons item (cdr (assq prev acc)))))))))))))
    (mapcar ind parents)))


\f
;;; Repairing structures

(defun org-list-use-alpha-bul-p (first struct prevs)
  "Non-nil if list starting at FIRST can have alphabetical bullets.

STRUCT is list structure.  PREVS is the alist of previous items,
as returned by `org-list-prevs-alist'."
  (and org-list-allow-alphabetical
       (catch 'exit
	 (let ((item first) (ascii 64) (case-fold-search nil))
	   ;; Pretend that bullets are uppercase and check if alphabet
	   ;; is sufficient, taking counters into account.
	   (while item
	     (let ((count (org-list-get-counter item struct)))
	       ;; Virtually determine current bullet
	       (if (and count (string-match-p "[a-zA-Z]" count))
		   ;; Counters are not case-sensitive.
		   (setq ascii (string-to-char (upcase count)))
		 (setq ascii (1+ ascii)))
	       ;; Test if bullet would be over z or Z.
	       (if (> ascii 90)
		   (throw 'exit nil)
		 (setq item (org-list-get-next-item item struct prevs)))))
	   ;; All items checked.  All good.
	   t))))

(defun org-list-inc-bullet-maybe (bullet)
  "Increment BULLET if applicable."
  (let ((case-fold-search nil))
    (cond
     ;; Num bullet: increment it.
     ((string-match "[0-9]+" bullet)
      (replace-match
       (number-to-string (1+ (string-to-number (match-string 0 bullet))))
       nil nil bullet))
     ;; Alpha bullet: increment it.
     ((string-match "[A-Za-z]" bullet)
      (replace-match
       (char-to-string (1+ (string-to-char (match-string 0 bullet))))
       nil nil bullet))
     ;; Unordered bullet: leave it.
     (t bullet))))

(defun org-list-struct-fix-bul (struct prevs)
  "Verify and correct bullets in STRUCT.
PREVS is the alist of previous items, as returned by
`org-list-prevs-alist'.

This function modifies STRUCT."
  (let ((case-fold-search nil)
	(fix-bul
	 ;; Set bullet of ITEM in STRUCT, depending on the type of
	 ;; first item of the list, the previous bullet and counter
	 ;; if any.
	 (lambda (item)
	   (let* ((prev (org-list-get-prev-item item struct prevs))
		  (prev-bul (and prev (org-list-get-bullet prev struct)))
		  (counter (org-list-get-counter item struct))
		  (bullet (org-list-get-bullet item struct))
		  (alphap (and (not prev)
			       (org-list-use-alpha-bul-p item struct prevs))))
	     (org-list-set-bullet
	      item struct
	      (org-list-bullet-string
	       (cond
		;; Alpha counter in alpha list: use counter.
		((and prev counter
		      (string-match "[a-zA-Z]" counter)
		      (string-match "[a-zA-Z]" prev-bul))
		 ;; Use cond to be sure `string-match' is used in
		 ;; both cases.
		 (let ((real-count
			(cond
			 ((string-match "[a-z]" prev-bul) (downcase counter))
			 ((string-match "[A-Z]" prev-bul) (upcase counter)))))
		   (replace-match real-count nil nil prev-bul)))
		;; Num counter in a num list: use counter.
		((and prev counter
		      (string-match "[0-9]+" counter)
		      (string-match "[0-9]+" prev-bul))
		 (replace-match counter nil nil prev-bul))
		;; No counter: increase, if needed, previous bullet.
		(prev
		 (org-list-inc-bullet-maybe (org-list-get-bullet prev struct)))
		;; Alpha counter at first item: use counter.
		((and counter (org-list-use-alpha-bul-p item struct prevs)
		      (string-match "[A-Za-z]" counter)
		      (string-match "[A-Za-z]" bullet))
		 (let ((real-count
			(cond
			 ((string-match "[a-z]" bullet) (downcase counter))
			 ((string-match "[A-Z]" bullet) (upcase counter)))))
		   (replace-match real-count nil nil bullet)))
		;; Num counter at first item: use counter.
		((and counter
		      (string-match "[0-9]+" counter)
		      (string-match "[0-9]+" bullet))
		 (replace-match counter nil nil bullet))
		;; First bullet is alpha uppercase: use "A".
		((and alphap (string-match "[A-Z]" bullet))
		 (replace-match "A" nil nil bullet))
		;; First bullet is alpha lowercase: use "a".
		((and alphap (string-match "[a-z]" bullet))
		 (replace-match "a" nil nil bullet))
		;; First bullet is num: use "1".
		((string-match "\\([0-9]+\\|[A-Za-z]\\)" bullet)
		 (replace-match "1" nil nil bullet))
		;; Not an ordered list: keep bullet.
		(t bullet))))))))
    (mapc fix-bul (mapcar #'car struct))))

(defun org-list-struct-fix-ind (struct parents &optional bullet-size)
  "Verify and correct indentation in STRUCT.

PARENTS is the alist of parents, as returned by
`org-list-parents-alist'.

If numeric optional argument BULLET-SIZE is set, assume all
bullets in list have this length to determine new indentation.

This function modifies STRUCT."
  (let* ((ancestor (org-list-get-top-point struct))
         (top-ind (org-list-get-ind ancestor struct))
         (new-ind
          (lambda (item)
            (let ((parent (org-list-get-parent item struct parents)))
              (if parent
                  ;; Indent like parent + length of parent's bullet +
		  ;; sub-list offset.
                  (org-list-set-ind
		   item struct (+ (or bullet-size
				      (length
				       (org-list-get-bullet parent struct)))
				  (org-list-get-ind parent struct)
				  org-list-indent-offset))
                ;; If no parent, indent like top-point.
		(org-list-set-ind item struct top-ind))))))
    (mapc new-ind (mapcar #'car (cdr struct)))))

(defun org-list-struct-fix-box (struct parents prevs &optional ordered)
  "Verify and correct checkboxes in STRUCT.

PARENTS is the alist of parents and PREVS is the alist of
previous items, as returned by, respectively,
`org-list-parents-alist' and `org-list-prevs-alist'.

If ORDERED is non-nil, a checkbox can only be checked when every
checkbox before it is checked too.  If there was an attempt to
break this rule, the function will return the blocking item.  In
all others cases, the return value will be nil.

This function modifies STRUCT."
  (let ((all-items (mapcar #'car struct))
	(set-parent-box
	 (lambda (item)
	   (let* ((box-list
		   (mapcar (lambda (child)
			     (org-list-get-checkbox child struct))
			   (org-list-get-children item struct parents))))
	     (org-list-set-checkbox
	      item struct
	      (cond
	       ((and (member "[ ]" box-list) (member "[X]" box-list)) "[-]")
	       ((member "[-]" box-list) "[-]")
	       ((member "[X]" box-list) "[X]")
	       ((member "[ ]" box-list) "[ ]")
	       ;; Parent has no boxed child: leave box as-is.
	       (t (org-list-get-checkbox item struct)))))))
	parent-list)
    ;; 1. List all parents with a checkbox.
    (mapc
     (lambda (e)
       (let* ((parent (org-list-get-parent e struct parents))
	      (parent-box-p (org-list-get-checkbox parent struct)))
	 (when (and parent-box-p (not (memq parent parent-list)))
	   (push parent parent-list))))
     all-items)
    ;; 2. Sort those parents by decreasing indentation.
    (setq parent-list (sort parent-list
			    (lambda (e1 e2)
			      (> (org-list-get-ind e1 struct)
				 (org-list-get-ind e2 struct)))))
    ;; 3. For each parent, get all children's checkboxes to determine
    ;;    and set its checkbox accordingly.
    (mapc set-parent-box parent-list)
    ;; 4. If ORDERED is set, see if we need to uncheck some boxes.
    (when ordered
      (let* ((box-list
	      (mapcar (lambda (e) (org-list-get-checkbox e struct)) all-items))
	     (after-unchecked (member "[ ]" box-list)))
	;; There are boxes checked after an unchecked one: fix that.
	(when (member "[X]" after-unchecked)
	  (let ((index (- (length struct) (length after-unchecked))))
	    (dolist (e (nthcdr index all-items))
	      (when (org-list-get-checkbox e struct)
		(org-list-set-checkbox e struct "[ ]")))
	    ;; Verify once again the structure, without ORDERED.
	    (org-list-struct-fix-box struct parents prevs nil)
	    ;; Return blocking item.
	    (nth index all-items)))))))

(defun org-list-struct-fix-item-end (struct)
  "Verify and correct each item end position in STRUCT.

This function modifies STRUCT."
  (let (end-list acc-end)
    (pcase-dolist (`(,pos . ,_) struct)
      (let ((ind-pos (org-list-get-ind pos struct))
	    (end-pos (org-list-get-item-end pos struct)))
	(unless (assq end-pos struct)
	  ;; To determine real ind of an ending position that is not
	  ;; at an item, we have to find the item it belongs to: it is
	  ;; the last item (ITEM-UP), whose ending is further than the
	  ;; position we're interested in.
	  (let ((item-up (assoc-default end-pos acc-end #'>)))
	    (push (cons
		   ;; Else part is for the bottom point.
		   (if item-up (+ (org-list-get-ind item-up struct) 2) 0)
		   end-pos)
		  end-list)))
	(push (cons ind-pos pos) end-list)
	(push (cons end-pos pos) acc-end)))
    (setq end-list (sort end-list (lambda (e1 e2) (< (cdr e1) (cdr e2)))))
    (org-list-struct-assoc-end struct end-list)))

(defun org-list-struct-apply-struct (struct old-struct)
  "Apply set difference between STRUCT and OLD-STRUCT to the buffer.

OLD-STRUCT is the structure before any modifications, and STRUCT
the structure to be applied.  The function will only modify parts
of the list which have changed.

Initial position of cursor is restored after the changes."
  (let* ((origin (point-marker))
	 (inlinetask-re (and (featurep 'org-inlinetask)
			     (org-inlinetask-outline-regexp)))
	 (item-re (org-item-re))
	 (shift-body-ind
	  ;; Shift the indentation between END and BEG by DELTA.
	  ;; Start from the line before END.
	  (lambda (end beg delta)
	    (goto-char end)
	    (skip-chars-backward " \r\t\n")
	    (beginning-of-line)
	    (while (or (> (point) beg)
		       (and (= (point) beg)
			    (not (looking-at item-re))))
	      (cond
	       ;; Skip inline tasks.
	       ((and inlinetask-re (looking-at inlinetask-re))
		(org-inlinetask-goto-beginning))
	       ;; Shift only non-empty lines.
	       ((looking-at-p "^[ \t]*\\S-")
		(indent-line-to (+ (current-indentation) delta))))
	      (forward-line -1))))
	 (modify-item
	  ;; Replace ITEM first line elements with new elements from
	  ;; STRUCT, if appropriate.
	  (lambda (item)
	    (goto-char item)
	    (let* ((new-ind (org-list-get-ind item struct))
		   (old-ind (current-indentation))
		   (new-bul (org-list-bullet-string
			     (org-list-get-bullet item struct)))
		   (old-bul (org-list-get-bullet item old-struct))
		   (new-box (org-list-get-checkbox item struct)))
	      (looking-at org-list-full-item-re)
	      ;; a.  Replace bullet
	      (unless (equal old-bul new-bul)
		(replace-match new-bul nil nil nil 1))
	      ;; b.  Replace checkbox.
	      (cond
	       ((equal (match-string 3) new-box))
	       ((and (match-string 3) new-box)
		(replace-match new-box nil nil nil 3))
	       ((match-string 3)
		(looking-at ".*?\\([ \t]*\\[[ X-]\\]\\)")
		(replace-match "" nil nil nil 1))
	       (t (let ((counterp (match-end 2)))
		    (goto-char (if counterp (1+ counterp) (match-end 1)))
		    (insert (concat new-box (unless counterp " "))))))
	      ;; c.  Indent item to appropriate column.
	      (unless (= new-ind old-ind)
		(delete-region (goto-char (point-at-bol))
			       (progn (skip-chars-forward " \t") (point)))
		(indent-to new-ind))))))
    ;; 1. First get list of items and position endings.  We maintain
    ;;    two alists: ITM-SHIFT, determining indentation shift needed
    ;;    at item, and END-LIST, a pseudo-alist where key is ending
    ;;    position and value point.
    (let (end-list acc-end itm-shift all-ends sliced-struct)
      (dolist (e old-struct)
	(let* ((pos (car e))
	       (ind-pos (org-list-get-ind pos struct))
	       (ind-old (org-list-get-ind pos old-struct))
	       (bul-pos (org-list-get-bullet pos struct))
	       (bul-old (org-list-get-bullet pos old-struct))
	       (ind-shift (- (+ ind-pos (length bul-pos))
			     (+ ind-old (length bul-old))))
	       (end-pos (org-list-get-item-end pos old-struct)))
	  (push (cons pos ind-shift) itm-shift)
	  (unless (assq end-pos old-struct)
	    ;; To determine real ind of an ending position that
	    ;; is not at an item, we have to find the item it
	    ;; belongs to: it is the last item (ITEM-UP), whose
	    ;; ending is further than the position we're
	    ;; interested in.
	    (let ((item-up (assoc-default end-pos acc-end #'>)))
	      (push (cons end-pos item-up) end-list)))
	  (push (cons end-pos pos) acc-end)))
      ;; 2. Slice the items into parts that should be shifted by the
      ;;    same amount of indentation.  Each slice follow the pattern
      ;;    (END BEG DELTA).  Slices are returned in reverse order.
      (setq all-ends (sort (append (mapcar #'car itm-shift)
				   (org-uniquify (mapcar #'car end-list)))
			   #'<)
	    acc-end (nreverse acc-end))
      (while (cdr all-ends)
	(let* ((up (pop all-ends))
	       (down (car all-ends))
	       (itemp (assq up struct))
	       (delta
		(if itemp (cdr (assq up itm-shift))
		  ;; If we're not at an item, there's a child of the
		  ;; item point belongs to above.  Make sure the less
		  ;; indented line in this slice has the same column
		  ;; as that child.
		  (let* ((child (cdr (assq up acc-end)))
			 (ind (org-list-get-ind child struct))
			 (min-ind most-positive-fixnum))
		    (save-excursion
		      (goto-char up)
		      (while (< (point) down)
			;; Ignore empty lines.  Also ignore blocks and
			;; drawers contents.
			(unless (looking-at-p "[ \t]*$")
			  (setq min-ind (min (current-indentation) min-ind))
			  (cond
			   ((and (looking-at "#\\+BEGIN\\(:\\|_\\S-+\\)")
				 (re-search-forward
				  (format "^[ \t]*#\\+END%s[ \t]*$"
					  (match-string 1))
				  down t)))
			   ((and (looking-at org-drawer-regexp)
				 (re-search-forward "^[ \t]*:END:[ \t]*$"
						    down t)))))
			(forward-line)))
		    (- ind min-ind)))))
	  (push (list down up delta) sliced-struct)))
      ;; 3. Shift each slice in buffer, provided delta isn't 0, from
      ;;    end to beginning.  Take a special action when beginning is
      ;;    at item bullet.
      (dolist (e sliced-struct)
	(unless (zerop (nth 2 e)) (apply shift-body-ind e))
	(let* ((beg (nth 1 e))
	       (cell (assq beg struct)))
	  (unless (or (not cell) (equal cell (assq beg old-struct)))
	    (funcall modify-item beg)))))
    ;; 4. Go back to initial position and clean marker.
    (goto-char origin)
    (move-marker origin nil)))

(defun org-list-write-struct (struct parents &optional old-struct)
  "Correct bullets, checkboxes and indentation in list at point.

STRUCT is the list structure.  PARENTS is the alist of parents,
as returned by `org-list-parents-alist'.

When non-nil, optional argument OLD-STRUCT is the reference
structure of the list.  It should be provided whenever STRUCT
doesn't correspond anymore to the real list in buffer."
  ;; Order of functions matters here: checkboxes and endings need
  ;; correct indentation to be set, and indentation needs correct
  ;; bullets.
  ;;
  ;; 0. Save a copy of structure before modifications
  (let ((old-struct (or old-struct (copy-tree struct))))
    ;; 1. Set a temporary, but coherent with PARENTS, indentation in
    ;;    order to get items endings and bullets properly
    (org-list-struct-fix-ind struct parents 2)
    ;; 2. Fix each item end to get correct prevs alist.
    (org-list-struct-fix-item-end struct)
    ;; 3. Get bullets right.
    (let ((prevs (org-list-prevs-alist struct)))
      (org-list-struct-fix-bul struct prevs)
      ;; 4. Now get real indentation.
      (org-list-struct-fix-ind struct parents)
      ;; 5. Eventually fix checkboxes.
      (org-list-struct-fix-box struct parents prevs))
    ;; 6. Apply structure modifications to buffer.
    (org-list-struct-apply-struct struct old-struct))
  ;; 7. Return the updated structure
  struct)


\f
;;; Misc Tools

(defun org-apply-on-list (function init-value &rest args)
  "Call FUNCTION on each item of the list at point.
FUNCTION must be called with at least one argument: INIT-VALUE,
that will contain the value returned by the function at the
previous item, plus ARGS extra arguments.

FUNCTION is applied on items in reverse order.

As an example, \(org-apply-on-list \(lambda \(result) \(1+ result)) 0)
will return the number of items in the current list.

Sublists of the list are skipped.  Cursor is always at the
beginning of the item."
  (let* ((struct (org-list-struct))
	 (prevs (org-list-prevs-alist struct))
	 (item (copy-marker (point-at-bol)))
	 (all (org-list-get-all-items (marker-position item) struct prevs))
	 (value init-value))
    (dolist (e (nreverse all))
      (goto-char e)
      (setq value (apply function value args)))
    (goto-char item)
    (move-marker item nil)
    value))

(defun org-list-set-item-visibility (item struct view)
  "Set visibility of ITEM in STRUCT to VIEW.

Possible values are: `folded', `children' or `subtree'.  See
`org-cycle' for more information."
  (cond
   ((eq view 'folded)
    (let ((item-end (org-list-get-item-end-before-blank item struct)))
      ;; Hide from eol
      (org-fold-region (save-excursion (goto-char item) (line-end-position))
		       item-end t 'outline)))
   ((eq view 'children)
    ;; First show everything.
    (org-list-set-item-visibility item struct 'subtree)
    ;; Then fold every child.
    (let* ((parents (org-list-parents-alist struct))
	   (children (org-list-get-children item struct parents)))
      (dolist (child children)
	(org-list-set-item-visibility child struct 'folded))))
   ((eq view 'subtree)
    ;; Show everything
    (let ((item-end (org-list-get-item-end item struct)))
      (org-fold-region item item-end nil 'outline)))))

(defun org-list-item-body-column (item)
  "Return column at which body of ITEM should start."
  (save-excursion
    (goto-char item)
    (looking-at "[ \t]*\\(\\S-+\\)")
    (+ (progn (goto-char (match-end 1)) (current-column))
       (if (and org-list-two-spaces-after-bullet-regexp
		(string-match-p org-list-two-spaces-after-bullet-regexp
				(match-string 1)))
	   2
	 1))))


\f
;;; Interactive functions

(defalias 'org-list-get-item-begin 'org-in-item-p)

(defun org-beginning-of-item ()
  "Go to the beginning of the current item.
Throw an error when not in a list."
  (interactive)
  (let ((begin (org-in-item-p)))
    (if begin (goto-char begin) (error "Not in an item"))))

(defun org-beginning-of-item-list ()
  "Go to the beginning item of the current list or sublist.
Throw an error when not in a list."
  (interactive)
  (let ((begin (org-in-item-p)))
    (if (not begin)
	(error "Not in an item")
      (goto-char begin)
      (let* ((struct (org-list-struct))
	     (prevs (org-list-prevs-alist struct)))
	(goto-char (org-list-get-list-begin begin struct prevs))))))

(defun org-end-of-item-list ()
  "Go to the end of the current list or sublist.
Throw an error when not in a list."
  (interactive)
  (let ((begin (org-in-item-p)))
    (if (not begin)
	(error "Not in an item")
      (goto-char begin)
      (let* ((struct (org-list-struct))
	     (prevs (org-list-prevs-alist struct)))
	(goto-char (org-list-get-list-end begin struct prevs))))))

(defun org-end-of-item ()
  "Go to the end of the current item.
Throw an error when not in a list."
  (interactive)
  (let ((begin (org-in-item-p)))
    (if (not begin)
	(error "Not in an item")
      (goto-char begin)
      (let ((struct (org-list-struct)))
	(goto-char (org-list-get-item-end begin struct))))))

(defun org-previous-item ()
  "Move to the beginning of the previous item.
Throw an error when not in a list.  Also throw an error when at
first item, unless `org-list-use-circular-motion' is non-nil."
  (interactive)
  (let ((item (org-in-item-p)))
    (if (not item)
	(error "Not in an item")
      (goto-char item)
      (let* ((struct (org-list-struct))
	     (prevs (org-list-prevs-alist struct))
	     (prevp (org-list-get-prev-item item struct prevs)))
	(cond
	 (prevp (goto-char prevp))
	 (org-list-use-circular-motion
	  (goto-char (org-list-get-last-item item struct prevs)))
	 (t (error "On first item")))))))

(defun org-next-item ()
  "Move to the beginning of the next item.
Throw an error when not in a list.  Also throw an error when at
last item, unless `org-list-use-circular-motion' is non-nil."
  (interactive)
  (let ((item (org-in-item-p)))
    (if (not item)
	(error "Not in an item")
      (goto-char item)
      (let* ((struct (org-list-struct))
	     (prevs (org-list-prevs-alist struct))
	     (prevp (org-list-get-next-item item struct prevs)))
	(cond
	 (prevp (goto-char prevp))
	 (org-list-use-circular-motion
	  (goto-char (org-list-get-first-item item struct prevs)))
	 (t (error "On last item")))))))

(defun org-move-item-down ()
  "Move the item at point down, i.e. swap with following item.
Sub-items (items with larger indentation) are considered part of
the item, so this really moves item trees."
  (interactive)
  (unless (org-at-item-p) (error "Not at an item"))
  (let* ((col (current-column))
	 (item (point-at-bol))
	 (struct (org-list-struct))
	 (prevs (org-list-prevs-alist struct))
	 (next-item (org-list-get-next-item (point-at-bol) struct prevs)))
    (unless (or next-item org-list-use-circular-motion)
      (user-error "Cannot move this item further down"))
    (if (not next-item)
	(setq struct (org-list-send-item item 'begin struct))
      (setq struct (org-list-swap-items item next-item struct))
      (goto-char
       (org-list-get-next-item item struct (org-list-prevs-alist struct))))
    (org-list-write-struct struct (org-list-parents-alist struct))
    (org-move-to-column col)))

(defun org-move-item-up ()
  "Move the item at point up, i.e. swap with previous item.
Sub-items (items with larger indentation) are considered part of
the item, so this really moves item trees."
  (interactive)
  (unless (org-at-item-p) (error "Not at an item"))
  (let* ((col (current-column))
	 (item (point-at-bol))
	 (struct (org-list-struct))
	 (prevs (org-list-prevs-alist struct))
	 (prev-item (org-list-get-prev-item (point-at-bol) struct prevs)))
    (unless (or prev-item org-list-use-circular-motion)
      (user-error "Cannot move this item further up"))
    (if (not prev-item)
	(setq struct (org-list-send-item item 'end struct))
      (setq struct (org-list-swap-items prev-item item struct)))
    (org-list-write-struct struct (org-list-parents-alist struct))
    (org-move-to-column col)))

(defun org-insert-item (&optional checkbox)
  "Insert a new item at the current level.
If cursor is before first character after bullet of the item, the
new item will be created before the current one.

If CHECKBOX is non-nil, add a checkbox next to the bullet.

Return t when things worked, nil when we are not in an item, or
item is invisible."
  (interactive "P")
  (let ((itemp (org-in-item-p))
	(pos (point)))
    ;; If cursor isn't is a list or if list is invisible, return nil.
    (unless (or (not itemp)
		(save-excursion
		  (goto-char itemp)
		  (org-invisible-p)))
      (if (save-excursion
	    (goto-char itemp)
	    (org-at-item-timer-p))
	  ;; Timer list: delegate to `org-timer-item'.
	  (progn (org-timer-item) t)
	(let* ((struct (save-excursion (goto-char itemp)
				       (org-list-struct)))
	       (prevs (org-list-prevs-alist struct))
	       ;; If we're in a description list, ask for the new term.
	       (desc (when (eq (org-list-get-list-type itemp struct prevs)
			       'descriptive)
		       " :: ")))
	  (setq struct (org-list-insert-item pos struct prevs checkbox desc))
	  (org-list-write-struct struct (org-list-parents-alist struct))
	  (when checkbox (org-update-checkbox-count-maybe))
	  (looking-at org-list-full-item-re)
	  (goto-char (if (and (match-beginning 4)
			      (save-match-data
				(string-match "[.)]" (match-string 1))))
			 (match-beginning 4)
		       (match-end 0)))
	  (when desc (backward-char 1))
	  t)))))

(defun org-list-repair ()
  "Fix indentation, bullets and checkboxes in the list at point."
  (interactive)
  (unless (org-at-item-p) (error "This is not a list"))
  (let* ((struct (org-list-struct))
	 (parents (org-list-parents-alist struct)))
    (org-list-write-struct struct parents)))

(defun org-cycle-list-bullet (&optional which)
  "Cycle through the different itemize/enumerate bullets.
This cycle the entire list level through the sequence:

   `-'  ->  `+'  ->  `*'  ->  `1.'  ->  `1)'

If WHICH is a valid string, use that as the new bullet.  If WHICH
is an integer, 0 means `-', 1 means `+' etc.  If WHICH is
`previous', cycle backwards."
  (interactive "P")
  (unless (org-at-item-p) (error "Not at an item"))
  (save-excursion
    (beginning-of-line)
    (let* ((struct (org-list-struct))
           (parents (org-list-parents-alist struct))
           (prevs (org-list-prevs-alist struct))
           (list-beg (org-list-get-first-item (point) struct prevs))
           (bullet (org-list-get-bullet list-beg struct))
	   (alpha-p (org-list-use-alpha-bul-p list-beg struct prevs))
	   (case-fold-search nil)
	   (current (cond
		     ((string-match "[a-z]\\." bullet) "a.")
		     ((string-match "[a-z])" bullet) "a)")
		     ((string-match "[A-Z]\\." bullet) "A.")
		     ((string-match "[A-Z])" bullet) "A)")
		     ((string-match "\\." bullet) "1.")
		     ((string-match ")" bullet) "1)")
		     (t (org-trim bullet))))
           ;; Compute list of possible bullets, depending on context.
	   (bullet-list
	    (append '("-" "+" )
		    ;; *-bullets are not allowed at column 0.
		    (unless (looking-at "\\S-") '("*"))
		    ;; Description items cannot be numbered.
		    (unless (or (eq org-plain-list-ordered-item-terminator ?\))
				(org-at-item-description-p))
		      '("1."))
		    (unless (or (eq org-plain-list-ordered-item-terminator ?.)
				(org-at-item-description-p))
		      '("1)"))
		    (unless (or (not alpha-p)
				(eq org-plain-list-ordered-item-terminator ?\))
				(org-at-item-description-p))
		      '("a." "A."))
		    (unless (or (not alpha-p)
				(eq org-plain-list-ordered-item-terminator ?.)
				(org-at-item-description-p))
		      '("a)" "A)"))))
	   (len (length bullet-list))
	   (item-index (- len (length (member current bullet-list))))
	   (get-value (lambda (index) (nth (mod index len) bullet-list)))
	   (new (cond
		 ((member which bullet-list) which)
		 ((numberp which) (funcall get-value which))
		 ((eq 'previous which) (funcall get-value (1- item-index)))
		 (t (funcall get-value (1+ item-index))))))
      ;; Use a short variation of `org-list-write-struct' as there's
      ;; no need to go through all the steps.
      (let ((old-struct (copy-tree struct)))
        (org-list-set-bullet list-beg struct (org-list-bullet-string new))
        (org-list-struct-fix-bul struct prevs)
        (org-list-struct-fix-ind struct parents)
        (org-list-struct-apply-struct struct old-struct)))))

;;;###autoload
(define-minor-mode org-list-checkbox-radio-mode
  "When turned on, use list checkboxes as radio buttons."
  :lighter " CheckBoxRadio"
  (unless (eq major-mode 'org-mode)
    (user-error "Cannot turn this mode outside org-mode buffers")))

(defun org-toggle-radio-button (&optional arg)
  "Toggle off all checkboxes and toggle on the one at point."
  (interactive "P")
  (if (not (org-at-item-p))
      (user-error "Cannot toggle checkbox outside of a list")
    (let* ((cpos (org-in-item-p))
	   (struct (org-list-struct))
	   (orderedp (org-entry-get nil "ORDERED"))
	   (parents (org-list-parents-alist struct))
	   (old-struct (copy-tree struct))
	   (cbox (org-list-get-checkbox cpos struct))
           (prevs (org-list-prevs-alist struct))
	   (start (org-list-get-list-begin (point-at-bol) struct prevs))
	   (new (unless (and cbox (equal arg '(4)) (equal start cpos))
		  "[ ]")))
      (dolist (pos (org-list-get-all-items
		    start struct (org-list-prevs-alist struct)))
	(org-list-set-checkbox pos struct new))
      (when new
	(org-list-set-checkbox
	 cpos struct
	 (cond ((equal arg '(4)) (unless cbox "[ ]"))
	       ((equal arg '(16)) (unless cbox "[-]"))
	       (t (if (equal cbox "[X]") "[ ]" "[X]")))))
      (org-list-struct-fix-box struct parents prevs orderedp)
      (org-list-struct-apply-struct struct old-struct)
      (org-update-checkbox-count-maybe))))

(defun org-at-radio-list-p ()
  "Is point at a list item with radio buttons?"
  (when (org-match-line (org-item-re))	;short-circuit
    (let* ((e (save-excursion (beginning-of-line) (org-element-at-point))))
      ;; Check we're really on a line with a bullet.
      (when (memq (org-element-type e) '(item plain-list))
	;; Look for ATTR_ORG attribute in the current plain list.
	(let ((plain-list (org-element-lineage e '(plain-list) t)))
	  (org-with-point-at (org-element-property :post-affiliated plain-list)
	    (let ((case-fold-search t)
		  (regexp "^[ \t]*#\\+attr_org:.* :radio \\(\\S-+\\)")
		  (begin (org-element-property :begin plain-list)))
	      (and (re-search-backward regexp begin t)
		   (not (string-equal "nil" (match-string 1)))))))))))

(defun org-toggle-checkbox (&optional toggle-presence)
  "Toggle the checkbox in the current line.

With prefix argument TOGGLE-PRESENCE, add or remove checkboxes.
With a double prefix argument, set the checkbox to \"[-]\".

When there is an active region, toggle status or presence of the
first checkbox there, and make every item inside have the same
status or presence, respectively.

If point is on a headline, apply this to all checkbox items in
the text below the heading, taking as reference the first item in
subtree, ignoring planning line and any drawer following it."
  (interactive "P")
  (if (org-at-radio-list-p)
      (org-toggle-radio-button toggle-presence)
    (save-excursion
      (let* (singlep
	     block-item
	     lim-up
	     lim-down
	     (orderedp (org-entry-get nil "ORDERED"))
	     (_bounds
	      ;; In a region, start at first item in region.
	      (cond
	       ((org-region-active-p)
		(let ((limit (region-end)))
		  (goto-char (region-beginning))
		  (if (org-list-search-forward (org-item-beginning-re) limit t)
		      (setq lim-up (point-at-bol))
		    (error "No item in region"))
		  (setq lim-down (copy-marker limit))))
	       ((org-at-heading-p)
		;; On a heading, start at first item after drawers and
		;; time-stamps (scheduled, etc.).
		(let ((limit (save-excursion (outline-next-heading) (point))))
		  (org-end-of-meta-data t)
		  (if (org-list-search-forward (org-item-beginning-re) limit t)
		      (setq lim-up (point-at-bol))
		    (error "No item in subtree"))
		  (setq lim-down (copy-marker limit))))
	       ;; Just one item: set SINGLEP flag.
	       ((org-at-item-p)
		(setq singlep t)
		(setq lim-up (point-at-bol)
		      lim-down (copy-marker (point-at-eol))))
	       (t (error "Not at an item or heading, and no active region"))))
	     ;; Determine the checkbox going to be applied to all items
	     ;; within bounds.
	     (ref-checkbox
	      (progn
		(goto-char lim-up)
		(let ((cbox (and (org-at-item-checkbox-p) (match-string 1))))
		  (cond
		   ((equal toggle-presence '(16)) "[-]")
		   ((equal toggle-presence '(4))
		    (unless cbox "[ ]"))
		   ((equal "[X]" cbox) "[ ]")
		   (t "[X]"))))))
	;; When an item is found within bounds, grab the full list at
	;; point structure, then: (1) set check-box of all its items
	;; within bounds to REF-CHECKBOX, (2) fix check-boxes of the
	;; whole list, (3) move point after the list.
	(goto-char lim-up)
	(while (and (< (point) lim-down)
		    (org-list-search-forward (org-item-beginning-re)
					     lim-down 'move))
	  (let* ((struct (org-list-struct))
		 (struct-copy (copy-tree struct))
		 (parents (org-list-parents-alist struct))
		 (prevs (org-list-prevs-alist struct))
		 (bottom (copy-marker (org-list-get-bottom-point struct)))
		 (items-to-toggle (cl-remove-if
				   (lambda (e) (or (< e lim-up) (> e lim-down)))
				   (mapcar #'car struct))))
	    (dolist (e items-to-toggle)
	      (org-list-set-checkbox
	       e struct
	       ;; If there is no box at item, leave as-is unless
	       ;; function was called with C-u prefix.
	       (let ((cur-box (org-list-get-checkbox e struct)))
		 (if (or cur-box (equal toggle-presence '(4)))
		     ref-checkbox
		   cur-box))))
	    (setq block-item (org-list-struct-fix-box
			      struct parents prevs orderedp))
	    ;; Report some problems due to ORDERED status of subtree.
	    ;; If only one box was being checked, throw an error, else,
	    ;; only signal problems.
	    (cond
	     ((and singlep block-item (> lim-up block-item))
	      (error
	       "Checkbox blocked because of unchecked box at line %d"
	       (org-current-line block-item)))
	     (block-item
	      (message
	       "Checkboxes were removed due to unchecked box at line %d"
	       (org-current-line block-item))))
	    (goto-char bottom)
	    (move-marker bottom nil)
	    (org-list-struct-apply-struct struct struct-copy)))
	(move-marker lim-down nil))))
  (org-update-checkbox-count-maybe))

(defun org-reset-checkbox-state-subtree ()
  "Reset all checkboxes in an entry subtree."
  (interactive "*")
  (if (org-before-first-heading-p)
      (error "Not inside a tree")
    (save-restriction
      (save-excursion
	(org-narrow-to-subtree)
	(org-fold-show-subtree)
	(goto-char (point-min))
	(let ((end (point-max)))
	  (while (< (point) end)
	    (when (org-at-item-checkbox-p)
	      (replace-match "[ ]" t t nil 1))
	    (beginning-of-line 2)))
	(org-update-checkbox-count-maybe 'all)))))

(defun org-update-checkbox-count (&optional all)
  "Update the checkbox statistics in the current section.

This will find all statistic cookies like [57%] and [6/12] and
update them with the current numbers.

With optional prefix argument ALL, do this for the whole buffer."
  (interactive "P")
  (org-with-wide-buffer
   (let* ((cookie-re "\\(\\(\\[[0-9]*%\\]\\)\\|\\(\\[[0-9]*/[0-9]*\\]\\)\\)")
	  (box-re "^[ \t]*\\([-+*]\\|\\([0-9]+\\|[A-Za-z]\\)[.)]\\)[ \t]+\
\\(?:\\[@\\(?:start:\\)?\\([0-9]+\\|[A-Za-z]\\)\\][ \t]*\\)?\\(\\[[- X]\\]\\)")
          (cookie-data (or (org-entry-get nil "COOKIE_DATA") ""))
	  (recursivep
	   (or (not org-checkbox-hierarchical-statistics)
	       (string-match-p "\\<recursive\\>" cookie-data)))
	  (within-inlinetask (and (not all)
				  (featurep 'org-inlinetask)
				  (org-inlinetask-in-task-p)))
	  (end (cond (all (point-max))
		     (within-inlinetask
		      (save-excursion (outline-next-heading) (point)))
		     (t (save-excursion
			  (org-with-limited-levels (outline-next-heading))
			  (point)))))
	  (count-boxes
	   (lambda (item structs recursivep)
	     ;; Return number of checked boxes and boxes of all types
	     ;; in all structures in STRUCTS.  If RECURSIVEP is
	     ;; non-nil, also count boxes in sub-lists.  If ITEM is
	     ;; nil, count across the whole structure, else count only
	     ;; across subtree whose ancestor is ITEM.
	     (let ((c-on 0) (c-all 0))
	       (dolist (s structs (list c-on c-all))
		 (let* ((pre (org-list-prevs-alist s))
			(par (org-list-parents-alist s))
			(items
			 (cond
			  ((and recursivep item) (org-list-get-subtree item s))
			  (recursivep (mapcar #'car s))
			  (item (org-list-get-children item s par))
			  (t (org-list-get-all-items
			      (org-list-get-top-point s) s pre))))
			(cookies (delq nil (mapcar
					    (lambda (e)
					      (org-list-get-checkbox e s))
					    items))))
		   (cl-incf c-all (length cookies))
		   (cl-incf c-on (cl-count "[X]" cookies :test #'equal)))))))
	  cookies-list cache)
     ;; Move to start.
     (cond (all (goto-char (point-min)))
	   (within-inlinetask (org-back-to-heading t))
	   (t (org-with-limited-levels (outline-previous-heading))))
     ;; Build an alist for each cookie found.  The key is the position
     ;; at beginning of cookie and values ending position, format of
     ;; cookie, number of checked boxes to report and total number of
     ;; boxes.
     (while (re-search-forward cookie-re end t)
       (let ((context (save-excursion (backward-char)
				      (save-match-data (org-element-context)))))
	 (when (and (eq (org-element-type context) 'statistics-cookie)
                    (not (string-match-p "\\<todo\\>" cookie-data)))
	   (push
	    (append
	     (list (match-beginning 1) (match-end 1) (match-end 2))
	     (let* ((container
		     (org-element-lineage
		      context
		      '(drawer center-block dynamic-block inlinetask item
			       quote-block special-block verse-block)))
		    (beg (if container
			     (org-element-property :contents-begin container)
			   (save-excursion
			     (org-with-limited-levels
			      (outline-previous-heading))
			     (point)))))
	       (or (cdr (assq beg cache))
		   (save-excursion
		     (goto-char beg)
		     (let ((end
			    (if container
				(org-element-property :contents-end container)
			      (save-excursion
				(org-with-limited-levels (outline-next-heading))
				(point))))
			   structs)
		       (while (re-search-forward box-re end t)
			 (let ((element (org-element-at-point)))
			   (when (eq (org-element-type element) 'item)
			     (push (org-element-property :structure element)
				   structs)
			     ;; Skip whole list since we have its
			     ;; structure anyway.
			     (while (setq element (org-element-lineage
						   element '(plain-list)))
			       (goto-char
				(min (org-element-property :end element)
				     end))))))
		       ;; Cache count for cookies applying to the same
		       ;; area.  Then return it.
		       (let ((count
			      (funcall count-boxes
				       (and (eq (org-element-type container)
						'item)
					    (org-element-property
					     :begin container))
				       structs
				       recursivep)))
			 (push (cons beg count) cache)
			 count))))))
	    cookies-list))))
     ;; Apply alist to buffer.
     (dolist (cookie cookies-list)
       (let* ((beg (car cookie))
	      (end (nth 1 cookie))
	      (percent (nth 2 cookie))
	      (checked (nth 3 cookie))
	      (total (nth 4 cookie)))
	 (goto-char beg)
	 (insert
	  (if percent (format "[%d%%]" (floor (* 100.0 checked)
					      (max 1 total)))
	    (format "[%d/%d]" checked total)))
	 (delete-region (point) (+ (point) (- end beg)))
	 (when org-auto-align-tags (org-fix-tags-on-the-fly)))))))

(defun org-get-checkbox-statistics-face ()
  "Select the face for checkbox statistics.
The face will be `org-done' when all relevant boxes are checked.
Otherwise it will be `org-todo'."
  (if (match-end 1)
      (if (equal (match-string 1) "100%")
	  'org-checkbox-statistics-done
	'org-checkbox-statistics-todo)
    (if (and (> (match-end 2) (match-beginning 2))
	     (equal (match-string 2) (match-string 3)))
	'org-checkbox-statistics-done
      'org-checkbox-statistics-todo)))

(defun org-update-checkbox-count-maybe (&optional all)
  "Update checkbox statistics unless turned off by user.
With an optional argument ALL, update them in the whole buffer."
  (when (cdr (assq 'checkbox org-list-automatic-rules))
    (org-update-checkbox-count all))
  (run-hooks 'org-checkbox-statistics-hook))

(defvar org-last-indent-begin-marker (make-marker))
(defvar org-last-indent-end-marker (make-marker))
(defun org-list-indent-item-generic (arg no-subtree struct)
  "Indent a local list item including its children.
When number ARG is a negative, item will be outdented, otherwise
it will be indented.

If a region is active, all items inside will be moved.

If NO-SUBTREE is non-nil, only indent the item itself, not its
children.

STRUCT is the list structure.

Return t if successful."
  (save-excursion
    (let* ((regionp (org-region-active-p))
	   (rbeg (and regionp (region-beginning)))
	   (rend (and regionp (region-end)))
	   (top (org-list-get-top-point struct))
	   (parents (org-list-parents-alist struct))
	   (prevs (org-list-prevs-alist struct))
	   ;; Are we going to move the whole list?
	   (specialp
	    (and (not regionp)
		 (= top (point-at-bol))
		 (cdr (assq 'indent org-list-automatic-rules))
		 (if no-subtree
		     (user-error
		      "At first item: use S-M-<left/right> to move the whole list")
		   t))))
      ;; Determine begin and end points of zone to indent.  If moving
      ;; more than one item, save them for subsequent moves.
      (unless (and (memq last-command '(org-shiftmetaright org-shiftmetaleft))
		   (memq this-command '(org-shiftmetaright org-shiftmetaleft)))
	(if regionp
	    (progn
	      (set-marker org-last-indent-begin-marker rbeg)
	      (set-marker org-last-indent-end-marker rend))
	  (set-marker org-last-indent-begin-marker (point-at-bol))
	  (set-marker org-last-indent-end-marker
		      (cond
		       (specialp (org-list-get-bottom-point struct))
		       (no-subtree (1+ (point-at-bol)))
		       (t (org-list-get-item-end (point-at-bol) struct))))))
      (let* ((beg (marker-position org-last-indent-begin-marker))
	     (end (marker-position org-last-indent-end-marker)))
	(cond
	 ;; Special case: moving top-item with indent rule.
	 (specialp
	  (let* ((level-skip (org-level-increment))
		 (offset (if (< arg 0) (- level-skip) level-skip))
		 (top-ind (org-list-get-ind beg struct))
		 (old-struct (copy-tree struct)))
	    (if (< (+ top-ind offset) 0)
		(error "Cannot outdent beyond margin")
	      ;; Change bullet if necessary.
	      (when (and (= (+ top-ind offset) 0)
			 (string-match "\\*"
				       (org-list-get-bullet beg struct)))
		(org-list-set-bullet beg struct
				     (org-list-bullet-string "-")))
	      ;; Shift every item by OFFSET and fix bullets.  Then
	      ;; apply changes to buffer.
	      (pcase-dolist (`(,pos . ,_) struct)
		(let ((ind (org-list-get-ind pos struct)))
		  (org-list-set-ind pos struct (+ ind offset))))
	      (org-list-struct-fix-bul struct prevs)
	      (org-list-struct-apply-struct struct old-struct))))
	 ;; Forbidden move:
	 ((and (< arg 0)
	       ;; If only one item is moved, it mustn't have a child.
	       (or (and no-subtree
			(not regionp)
			(org-list-has-child-p beg struct))
		   ;; If a subtree or region is moved, the last item
		   ;; of the subtree mustn't have a child.
		   (let ((last-item (caar
				     (reverse
				      (cl-remove-if
				       (lambda (e) (>= (car e) end))
				       struct)))))
		     (org-list-has-child-p last-item struct))))
	  (error "Cannot outdent an item without its children"))
	 ;; Normal shifting
	 (t
	  (let* ((old-struct (copy-tree struct))
		 (new-parents
		  (if (< arg 0)
		      (org-list-struct-outdent beg end struct parents)
		    (org-list-struct-indent beg end struct parents prevs))))
	    (org-list-write-struct struct new-parents old-struct))
	  (org-update-checkbox-count-maybe))))))
  t)

(defun org-outdent-item ()
  "Outdent a local list item, but not its children.
If a region is active, all items inside will be moved."
  (interactive)
  (let ((regionp (org-region-active-p)))
    (cond
     ((or (org-at-item-p)
	  (and regionp
	       (save-excursion (goto-char (region-beginning))
			       (org-at-item-p))))
      (let ((struct (if (not regionp) (org-list-struct)
		      (save-excursion (goto-char (region-beginning))
				      (org-list-struct)))))
	(org-list-indent-item-generic -1 t struct)))
     (regionp (error "Region not starting at an item"))
     (t (error "Not at an item")))))

(defun org-indent-item ()
  "Indent a local list item, but not its children.
If a region is active, all items inside will be moved."
  (interactive)
  (let ((regionp (org-region-active-p)))
    (cond
     ((or (org-at-item-p)
	  (and regionp
	       (save-excursion (goto-char (region-beginning))
			       (org-at-item-p))))
      (let ((struct (if (not regionp) (org-list-struct)
		      (save-excursion (goto-char (region-beginning))
				      (org-list-struct)))))
	(org-list-indent-item-generic 1 t struct)))
     (regionp (error "Region not starting at an item"))
     (t (error "Not at an item")))))

(defun org-outdent-item-tree ()
  "Outdent a local list item including its children.
If a region is active, all items inside will be moved."
  (interactive)
  (let ((regionp (org-region-active-p)))
    (cond
     ((or (org-at-item-p)
	  (and regionp
	       (save-excursion (goto-char (region-beginning))
			       (org-at-item-p))))
      (let ((struct (if (not regionp) (org-list-struct)
		      (save-excursion (goto-char (region-beginning))
				      (org-list-struct)))))
	(org-list-indent-item-generic -1 nil struct)))
     (regionp (error "Region not starting at an item"))
     (t (error "Not at an item")))))

(defun org-indent-item-tree ()
  "Indent a local list item including its children.
If a region is active, all items inside will be moved."
  (interactive)
  (let ((regionp (org-region-active-p)))
    (cond
     ((or (org-at-item-p)
	  (and regionp
	       (save-excursion (goto-char (region-beginning))
			       (org-at-item-p))))
      (let ((struct (if (not regionp) (org-list-struct)
		      (save-excursion (goto-char (region-beginning))
				      (org-list-struct)))))
	(org-list-indent-item-generic 1 nil struct)))
     (regionp (error "Region not starting at an item"))
     (t (error "Not at an item")))))

(defvar org-tab-ind-state)
(defun org-cycle-item-indentation ()
  "Cycle levels of indentation of an empty item.

The first run indents the item, if applicable.  Subsequent runs
outdent it at meaningful levels in the list.  When done, item is
put back at its original position with its original bullet.

Return t at each successful move."
  (when (org-at-item-p)
    (let* ((struct (org-list-struct))
	   (item (line-beginning-position))
	   (ind (org-list-get-ind item struct)))
      ;; Accept empty items or if cycle has already started.
      (when (or (eq last-command 'org-cycle-item-indentation)
		(and (org-match-line org-list-full-item-re)
		     (>= (match-end 0)
			 (save-excursion
			   (goto-char (org-list-get-item-end item struct))
			   (skip-chars-backward " \t\n")
			   (point)))))
	(setq this-command 'org-cycle-item-indentation)
	(let ((prevs (org-list-prevs-alist struct))
	      (parents (org-list-parents-alist struct)))
	  (if (eq last-command 'org-cycle-item-indentation)
	      ;; When in the middle of the cycle, try to outdent.  If
	      ;; it fails, move point back to its initial position and
	      ;; reset cycle.
	      (pcase-let ((`(,old-ind . ,old-bul) org-tab-ind-state)
			  (allow-outdent
			   (lambda (struct prevs parents)
			     ;; Non-nil if current item can be
			     ;; outdented.
			     (and (not (org-list-get-next-item item nil prevs))
				  (not (org-list-has-child-p item struct))
				  (org-list-get-parent item struct parents)))))
		(cond
		 ((and (> ind old-ind)
		       (org-list-get-prev-item item nil prevs))
		  (org-list-indent-item-generic 1 t struct))
		 ((and (< ind old-ind)
		       (funcall allow-outdent struct prevs parents))
		  (org-list-indent-item-generic -1 t struct))
		 (t
		  (delete-region (line-beginning-position) (line-end-position))
		  (indent-to-column old-ind)
		  (insert old-bul " ")
		  (let* ((struct (org-list-struct))
			 (parents (org-list-parents-alist struct)))
		    (if (and (> ind old-ind)
			     ;; We were previously indenting item.  It
			     ;; is no longer possible.  Try to outdent
			     ;; from initial position.
			     (funcall allow-outdent
				      struct
				      (org-list-prevs-alist struct)
				      parents))
			(org-list-indent-item-generic -1 t struct)
		      (org-list-write-struct struct parents)
		      ;; Start cycle over.
		      (setq this-command 'identity)
		      t)))))
	    ;; If a cycle is starting, remember initial indentation
	    ;; and bullet, then try to indent.  If it fails, try to
	    ;; outdent.
	    (setq org-tab-ind-state
		  (cons ind (org-trim (org-current-line-string))))
	    (cond
	     ((org-list-get-prev-item item nil prevs)
	      (org-list-indent-item-generic 1 t struct))
	     ((and (not (org-list-get-next-item item nil prevs))
		   (org-list-get-parent item struct parents))
	      (org-list-indent-item-generic -1 t struct))
	     (t
	      ;; This command failed.  So will the following one.
	      ;; There's no point in starting the cycle.
	      (setq this-command 'identity)
	      (user-error "Cannot move item")))))))))

(defun org-sort-list
    (&optional with-case sorting-type getkey-func compare-func interactive?)
  "Sort list items.
The cursor may be at any item of the list that should be sorted.
Sublists are not sorted.  Checkboxes, if any, are ignored.

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

Comparing entries ignores case by default.  However, with an
optional argument WITH-CASE, the sorting considers case as well,
if the current locale allows for it.

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, among ?n ?N ?a ?A ?t ?T ?f ?F ?x or ?X.  Here is
the detailed meaning of each character:

n   Numerically, by converting the beginning of the item to a number.
a   Alphabetically.  Only the first line of item is checked.
t   By date/time, either the first active time stamp in the entry, if
    any, or by the first inactive one.  In a timer list, sort the timers.
x   By \"checked\" status of a check list.

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.

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

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 t))
  (let* ((case-func (if with-case 'identity 'downcase))
         (struct (org-list-struct))
         (prevs (org-list-prevs-alist struct))
	 (start (org-list-get-list-begin (point-at-bol) struct prevs))
	 (end (org-list-get-list-end (point-at-bol) struct prevs))
	 (sorting-type
	  (or sorting-type
	      (progn
		(message
		 "Sort plain list: [a]lpha  [n]umeric  [t]ime  [f]unc  [x]checked  A/N/T/F/X means reversed:")
		(read-char-exclusive))))
	 (dcst (downcase sorting-type))
	 (getkey-func
	  (and (= dcst ?f)
	       (or getkey-func
		   (and interactive?
			(org-read-function "Function for extracting keys: "))
		   (error "Missing key extractor"))))
	 (sort-func
	  (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))))
	   ((= dcst ?t) #'<)
	   ((= dcst ?x) #'string<))))
    (message "Sorting items...")
    (save-restriction
      (narrow-to-region start end)
      (goto-char (point-min))
      (let* ((case-fold-search nil)
	     (now (current-time))
	     (next-record (lambda ()
			    (skip-chars-forward " \r\t\n")
			    (or (eobp) (beginning-of-line))))
	     (end-record (lambda ()
			   (goto-char (org-list-get-item-end-before-blank
				       (point) struct))))
	     (value-to-sort
	      (lambda ()
		(when (looking-at "[ \t]*[-+*0-9.)]+\\([ \t]+\\[[- X]\\]\\)?[ \t]+")
		  (cond
		   ((= dcst ?n)
		    (string-to-number
		     (org-sort-remove-invisible
		      (buffer-substring (match-end 0) (point-at-eol)))))
		   ((= dcst ?a)
		    (funcall case-func
			     (org-sort-remove-invisible
			      (buffer-substring
			       (match-end 0) (point-at-eol)))))
		   ((= dcst ?t)
		    (cond
		     ;; If it is a timer list, convert timer to seconds
		     ((org-at-item-timer-p)
		      (org-timer-hms-to-secs (match-string 1)))
		     ((or (save-excursion
			    (re-search-forward org-ts-regexp (point-at-eol) t))
			  (save-excursion (re-search-forward org-ts-regexp-both
							     (point-at-eol) t)))
		      (org-time-string-to-seconds (match-string 0)))
		     (t (float-time now))))
		   ((= dcst ?x) (or (and (stringp (match-string 1))
					 (match-string 1))
				    ""))
		   ((= dcst ?f)
		    (if getkey-func
			(let ((value (funcall getkey-func)))
			  (if (stringp value)
			      (funcall case-func value)
			    value))
		      (error "Invalid key function `%s'" getkey-func)))
		   (t (error "Invalid sorting type `%c'" sorting-type)))))))
	(sort-subr (/= dcst sorting-type)
		   next-record
		   end-record
		   value-to-sort
		   nil
		   sort-func)
	;; Read and fix list again, as `sort-subr' probably destroyed
	;; its structure.
	(org-list-repair)
	(run-hooks 'org-after-sorting-entries-or-items-hook)
	(message "Sorting items...done")))))

(defun org-toggle-item (arg)
  "Convert headings or normal lines to items, items to normal lines.
If there is no active region, only the current line is considered.

If the first non blank line in the region is a headline, convert
all headlines to items, shifting text accordingly.

If it is an item, convert all items to normal lines.

If it is normal text, change region into a list of items.
With a prefix argument ARG, change the region in a single item."
  (interactive "P")
  (let ((shift-text
	 (lambda (ind end)
	   ;; Shift text in current section to IND, from point to END.
	   ;; The function leaves point to END line.
	   (let ((min-i 1000) (end (copy-marker end)))
	     ;; First determine the minimum indentation (MIN-I) of
	     ;; the text.
	     (save-excursion
	       (catch 'exit
		 (while (< (point) end)
		   (let ((i (current-indentation)))
		     (cond
		      ;; Skip blank lines and inline tasks.
		      ((looking-at "^[ \t]*$"))
		      ((looking-at org-outline-regexp-bol))
		      ;; We can't find less than 0 indentation.
		      ((zerop i) (throw 'exit (setq min-i 0)))
		      ((< i min-i) (setq min-i i))))
		   (forward-line))))
	     ;; Then indent each line so that a line indented to
	     ;; MIN-I becomes indented to IND.  Ignore blank lines
	     ;; and inline tasks in the process.
	     (let ((delta (- ind min-i)))
	       (while (< (point) end)
		 (unless (or (looking-at "^[ \t]*$")
			     (looking-at org-outline-regexp-bol))
		   (indent-line-to (+ (current-indentation) delta)))
		 (forward-line))))))
	(skip-blanks
	 (lambda (pos)
	   ;; Return beginning of first non-blank line, starting from
	   ;; line at POS.
	   (save-excursion
	     (goto-char pos)
	     (skip-chars-forward " \r\t\n")
	     (point-at-bol))))
	beg end)
    ;; Determine boundaries of changes.
    (if (org-region-active-p)
	(setq beg (funcall skip-blanks (region-beginning))
	      end (copy-marker (region-end)))
      (setq beg (point-at-bol)
	    end (copy-marker (point-at-eol))))
    ;; Depending on the starting line, choose an action on the text
    ;; between BEG and END.
    (org-with-limited-levels
     (save-excursion
       (goto-char beg)
       (cond
	;; Case 1. Start at an item: de-itemize.  Note that it only
	;;         happens when a region is active: `org-ctrl-c-minus'
	;;         would call `org-cycle-list-bullet' otherwise.
	((org-at-item-p)
	 (while (< (point) end)
	   (when (org-at-item-p)
	     (skip-chars-forward " \t")
	     (delete-region (point) (match-end 0)))
	   (forward-line)))
	;; Case 2. Start at an heading: convert to items.
	((org-at-heading-p)
	 ;; Remove metadata
	 (let (org-loop-over-headlines-in-active-region)
	   (org-list--delete-metadata))
	 (let* ((bul (org-list-bullet-string "-"))
		(bul-len (length bul))
		;; Indentation of the first heading.  It should be
		;; relative to the indentation of its parent, if any.
		(start-ind (save-excursion
			     (cond
			      ((not org-adapt-indentation) 0)
			      ((not (outline-previous-heading)) 0)
			      (t (length (match-string 0))))))
		;; Level of first heading.  Further headings will be
		;; compared to it to determine hierarchy in the list.
		(ref-level (org-reduced-level (org-outline-level))))
	   (while (< (point) end)
	     (let* ((level (org-reduced-level (org-outline-level)))
		    (delta (max 0 (- level ref-level)))
		    (todo-state (org-get-todo-state)))
	       ;; If current headline is less indented than the first
	       ;; one, set it as reference, in order to preserve
	       ;; subtrees.
	       (when (< level ref-level) (setq ref-level level))
	       ;; Remove metadata
	       (let (org-loop-over-headlines-in-active-region)
		 (org-list--delete-metadata))
	       ;; Remove stars and TODO keyword.
	       (let ((case-fold-search nil)) (looking-at org-todo-line-regexp))
	       (delete-region (point) (or (match-beginning 3)
					  (line-end-position)))
	       (insert bul)
	       (indent-line-to (+ start-ind (* delta bul-len)))
	       ;; Turn TODO keyword into a check box.
	       (when todo-state
		 (let* ((struct (org-list-struct))
			(old (copy-tree struct)))
		   (org-list-set-checkbox
		    (line-beginning-position)
		    struct
		    (if (member todo-state org-done-keywords)
			"[X]"
		      "[ ]"))
		   (org-list-write-struct struct
					  (org-list-parents-alist struct)
					  old)))
	       ;; Ensure all text down to END (or SECTION-END) belongs
	       ;; to the newly created item.
	       (let ((section-end (save-excursion
				    (or (outline-next-heading) (point)))))
		 (forward-line)
		 (funcall shift-text
			  (+ start-ind (* (1+ delta) bul-len))
			  (min end section-end)))))))
	;; Case 3. Normal line with ARG: make the first line of region
	;;         an item, and shift indentation of others lines to
	;;         set them as item's body.
	(arg (let* ((bul (org-list-bullet-string "-"))
		    (bul-len (length bul))
		    (ref-ind (current-indentation)))
	       (skip-chars-forward " \t")
	       (insert bul)
	       (forward-line)
	       (while (< (point) end)
		 ;; Ensure that lines less indented than first one
		 ;; still get included in item body.
		 (funcall shift-text
			  (+ ref-ind bul-len)
			  (min end (save-excursion (or (outline-next-heading)
						       (point)))))
		 (forward-line))))
	;; Case 4. Normal line without ARG: turn each non-item line
	;;         into an item.
	(t
	 (while (< (point) end)
	   (unless (or (org-at-heading-p) (org-at-item-p))
	     (when (looking-at "\\([ \t]*\\)\\(\\S-\\)")
	       (replace-match
		(concat "\\1" (org-list-bullet-string "-") "\\2"))))
	   (forward-line))))))))

\f
;;; Send and receive lists

(defun org-list-to-lisp (&optional delete)
  "Parse the list at point and maybe DELETE it.

Return a list whose car is a symbol of list type, among
`ordered', `unordered' and `descriptive'.  Then, each item is
a list of strings and other sub-lists.

For example, the following list:

  1. first item
     + sub-item one
     + [X] sub-item two
     more text in first item
  2. [@3] last item

is parsed as

 (ordered
  (\"first item\"
   (unordered
    (\"sub-item one\")
    (\"[X] sub-item two\"))
   \"more text in first item\")
  (\"[@3] last item\"))

Point is left at list's end."
  (letrec ((struct (org-list-struct))
	   (prevs (org-list-prevs-alist struct))
	   (parents (org-list-parents-alist struct))
	   (top (org-list-get-top-point struct))
	   (bottom (org-list-get-bottom-point struct))
	   (trim
	    (lambda (text)
	      ;; Remove indentation and final newline from TEXT.
	      (org-remove-indentation
	       (if (string-match-p "\n\\'" text)
		   (substring text 0 -1)
		 text))))
	   (parse-sublist
	    (lambda (e)
	      ;; Return a list whose car is list type and cdr a list
	      ;; of items' body.
	      (cons (org-list-get-list-type (car e) struct prevs)
		    (mapcar parse-item e))))
	   (parse-item
	    (lambda (e)
	      ;; Return a list containing counter of item, if any,
	      ;; text and any sublist inside it.
	      (let* ((end (org-list-get-item-end e struct))
		     (children (org-list-get-children e struct parents))
		     (body
		      (save-excursion
			(goto-char e)
			(looking-at "[ \t]*\\S-+[ \t]*")
			(list
			 (funcall
			  trim
			  (concat
			   (make-string (string-width (match-string 0)) ?\s)
			   (buffer-substring-no-properties
			    (match-end 0) (or (car children) end))))))))
		(while children
		  (let* ((child (car children))
			 (sub (org-list-get-all-items child struct prevs))
			 (last-in-sub (car (last sub))))
		    (push (funcall parse-sublist sub) body)
		    ;; Remove whole sub-list from children.
		    (setq children (cdr (memq last-in-sub children)))
		    ;; There is a chunk of text belonging to the item
		    ;; if last child doesn't end where next child
		    ;; starts or where item ends.
		    (let ((sub-end (org-list-get-item-end last-in-sub struct))
			  (next (or (car children) end)))
		      (when (/= sub-end next)
			(push (funcall
			       trim
			       (buffer-substring-no-properties sub-end next))
			      body)))))
		(nreverse body)))))
    ;; Store output, take care of cursor position and deletion of
    ;; list, then return output.
    (prog1 (funcall parse-sublist (org-list-get-all-items top struct prevs))
      (goto-char top)
      (when delete
	(delete-region top bottom)
	(when (and (not (looking-at "[ \t]*$")) (looking-at org-list-end-re))
	  (replace-match ""))))))

(defun org-list-make-subtree ()
  "Convert the plain list at point into a subtree."
  (interactive)
  (let ((item (org-in-item-p)))
    (unless item (error "Not in a list"))
    (goto-char item)
    (let ((level (pcase (org-current-level)
		   (`nil 1)
		   (l (1+ (org-reduced-level l)))))
	  (list (save-excursion (org-list-to-lisp t))))
      (insert (org-list-to-subtree list level) "\n"))))

(defun org-list-to-generic (list params)
  "Convert a LIST parsed through `org-list-to-lisp' to a custom format.

LIST is a list as returned by `org-list-to-lisp', which see.
PARAMS is a property list of parameters used to tweak the output
format.

Valid parameters are:

:backend, :raw

  Export back-end used as a basis to transcode elements of the
  list, when no specific parameter applies to it.  It is also
  used to translate its contents.  You can prevent this by
  setting :raw property to a non-nil value.

:splice

  When non-nil, only export the contents of the top most plain
  list, effectively ignoring its opening and closing lines.

:ustart, :uend

  Strings to start and end an unordered list.  They can also be
  set to a function returning a string or nil, which will be
  called with the depth of the list, counting from 1.

:ostart, :oend

  Strings to start and end an ordered list.  They can also be set
  to a function returning a string or nil, which will be called
  with the depth of the list, counting from 1.

:dstart, :dend

  Strings to start and end a descriptive list.  They can also be
  set to a function returning a string or nil, which will be
  called with the depth of the list, counting from 1.

:dtstart, :dtend, :ddstart, :ddend

  Strings to start and end a descriptive term.

:istart, :iend

  Strings to start or end a list item, and to start a list item
  with a counter.  They can also be set to a function returning
  a string or nil, which will be called with two arguments: the
  type of list and the depth of the item, counting from 1.

:icount

  Strings to start a list item with a counter.  It can also be
  set to a function returning a string or nil, which will be
  called with three arguments: the type of list, the depth of the
  item, counting from 1, and the counter.  Its value, when
  non-nil, has precedence over `:istart'.

:isep

  String used to separate items.  It can also be set to
  a function returning a string or nil, which will be called with
  two arguments: the type of list and the depth of the item,
  counting from 1.  It always start on a new line.

:ifmt

  Function to be applied to the contents of every item.  It is
  called with two arguments: the type of list and the contents.

:cbon, :cboff, :cbtrans

  String to insert, respectively, an un-checked check-box,
  a checked check-box and a check-box in transitional state."
  (require 'ox)
  (let* ((backend (plist-get params :backend))
	 (custom-backend
	  (org-export-create-backend
	   :parent (or backend 'org)
	   :transcoders
	   `((plain-list . ,(org-list--to-generic-plain-list params))
	     (item . ,(org-list--to-generic-item params))
	     (macro . (lambda (m c i) (org-element-macro-interpreter m nil))))))
	 data info)
    ;; Write LIST back into Org syntax and parse it.
    (with-temp-buffer
      (let ((org-inhibit-startup t)) (org-mode))
      (letrec ((insert-list
		(lambda (l)
		  (dolist (i (cdr l))
		    (funcall insert-item i (car l)))))
	       (insert-item
		(lambda (i type)
		  (let ((start (point)))
		    (insert (if (eq type 'ordered) "1. " "- "))
		    (dolist (e i)
		      (if (consp e) (funcall insert-list e)
			(insert e)
			(insert "\n")))
		    (beginning-of-line)
		    (save-excursion
		      (let ((ind (if (eq type 'ordered) 3 2)))
			(while (> (point) start)
			  (unless (looking-at-p "[ \t]*$")
			    (indent-to ind))
			  (forward-line -1))))))))
	(funcall insert-list list))
      (setf data
	    (org-element-map (org-element-parse-buffer) 'plain-list
	      #'identity nil t))
      (setf info (org-export-get-environment backend nil params)))
    (when (and backend (symbolp backend) (not (org-export-get-backend backend)))
      (user-error "Unknown :backend value"))
    (unless backend (require 'ox-org))
    ;; When ':raw' property has a non-nil value, turn all objects back
    ;; into Org syntax.
    (when (and backend (plist-get params :raw))
      (org-element-map data org-element-all-objects
	(lambda (object)
	  (org-element-set-element
	   object (org-element-interpret-data object)))))
    ;; We use a low-level mechanism to export DATA so as to skip all
    ;; usual pre-processing and post-processing, i.e., hooks, filters,
    ;; Babel code evaluation, include keywords and macro expansion,
    ;; and filters.
    (let ((output (org-export-data-with-backend data custom-backend info)))
      ;; Remove final newline.
      (if (org-string-nw-p output) (substring-no-properties output 0 -1) ""))))

(defun org-list--depth (element)
  "Return the level of ELEMENT within current plain list.
ELEMENT is either an item or a plain list."
  (cl-count-if (lambda (ancestor) (eq (org-element-type ancestor) 'plain-list))
	       (org-element-lineage element nil t)))

(defun org-list--trailing-newlines (string)
  "Return the number of trailing newlines in STRING."
  (with-temp-buffer
    (insert string)
    (skip-chars-backward " \t\n")
    (count-lines (line-beginning-position 2) (point-max))))

(defun org-list--generic-eval (value &rest args)
  "Evaluate VALUE according to its type.
VALUE is either nil, a string or a function.  In the latter case,
it is called with arguments ARGS."
  (cond ((null value) nil)
	((stringp value) value)
	((functionp value) (apply value args))
	(t (error "Wrong value: %s" value))))

(defun org-list--to-generic-plain-list (params)
  "Return a transcoder for `plain-list' elements.
PARAMS is a plist used to tweak the behavior of the transcoder."
  (let ((ustart (plist-get params :ustart))
	(uend (plist-get params :uend))
	(ostart (plist-get params :ostart))
	(oend (plist-get params :oend))
	(dstart (plist-get params :dstart))
	(dend (plist-get params :dend))
	(splice (plist-get params :splice))
	(backend (plist-get params :backend)))
    (lambda (plain-list contents info)
      (let* ((type (org-element-property :type plain-list))
	     (depth (org-list--depth plain-list))
	     (start (and (not splice)
			 (org-list--generic-eval
			  (pcase type
			    (`ordered ostart)
			    (`unordered ustart)
			    (_ dstart))
			  depth)))
	     (end (and (not splice)
		       (org-list--generic-eval
			(pcase type
			  (`ordered oend)
			  (`unordered uend)
			  (_ dend))
			depth))))
	;; Make sure trailing newlines in END appear in the output by
	;; setting `:post-blank' property to their number.
	(when end
	  (org-element-put-property
	   plain-list :post-blank (org-list--trailing-newlines end)))
	;; Build output.
	(concat (and start (concat start "\n"))
		(if (or start end splice (not backend))
		    contents
		  (org-export-with-backend backend plain-list contents info))
		end)))))

(defun org-list--to-generic-item (params)
  "Return a transcoder for `item' elements.
PARAMS is a plist used to tweak the behavior of the transcoder."
  (let ((backend (plist-get params :backend))
	(istart (plist-get params :istart))
	(iend (plist-get params :iend))
	(isep (plist-get params :isep))
	(icount (plist-get params :icount))
	(ifmt (plist-get params :ifmt))
	(cboff (plist-get params :cboff))
	(cbon  (plist-get params :cbon))
	(cbtrans (plist-get params :cbtrans))
	(dtstart (plist-get params :dtstart))
	(dtend (plist-get params :dtend))
	(ddstart (plist-get params :ddstart))
	(ddend (plist-get params :ddend)))
    (lambda (item contents info)
      (let* ((type
	      (org-element-property :type (org-element-property :parent item)))
	     (tag (org-element-property :tag item))
	     (depth (org-list--depth item))
	     (separator (and (org-export-get-next-element item info)
			     (org-list--generic-eval isep type depth)))
	     (closing (pcase (org-list--generic-eval iend type depth)
			((or `nil "") "\n")
			((and (guard separator) s)
			 (if (equal (substring s -1) "\n") s (concat s "\n")))
			(s s))))
	;; When a closing line or a separator is provided, make sure
	;; its trailing newlines are taken into account when building
	;; output.  This is done by setting `:post-blank' property to
	;; the number of such lines in the last line to be added.
	(let ((last-string (or separator closing)))
	  (when last-string
	    (org-element-put-property
	     item
	     :post-blank
	     (max (1- (org-list--trailing-newlines last-string)) 0))))
	;; Build output.
	(concat
	 (let ((c (org-element-property :counter item)))
	   (if (and c icount) (org-list--generic-eval icount type depth c)
	     (org-list--generic-eval istart type depth)))
	 (let ((body
		(if (or istart iend icount ifmt cbon cboff cbtrans (not backend)
			(and (eq type 'descriptive)
			     (or dtstart dtend ddstart ddend)))
		    (concat
		     (pcase (org-element-property :checkbox item)
		       (`on cbon)
		       (`off cboff)
		       (`trans cbtrans))
		     (and tag
			  (concat dtstart
				  (if backend
				      (org-export-data-with-backend
				       tag backend info)
				    (org-element-interpret-data tag))
				  dtend))
		     (and tag ddstart)
		     (let ((contents
			    (if (= (length contents) 0) ""
			      (substring contents 0 -1))))
		       (if ifmt (org-list--generic-eval ifmt type contents)
			 contents))
		     (and tag ddend))
		  (org-export-with-backend backend item contents info))))
	   ;; Remove final newline.
	   (if (equal body "") ""
	     (substring (org-element-normalize-string body) 0 -1)))
	 closing
	 separator)))))

(defun org-list-to-latex (list &optional params)
  "Convert LIST into a LaTeX list.
LIST is a parsed plain list, as returned by `org-list-to-lisp'.
PARAMS is a property list with overruling parameters for
`org-list-to-generic'.  Return converted list as a string."
  (require 'ox-latex)
  (org-list-to-generic list (org-combine-plists '(:backend latex) params)))

(defun org-list-to-html (list &optional params)
  "Convert LIST into a HTML list.
LIST is a parsed plain list, as returned by `org-list-to-lisp'.
PARAMS is a property list with overruling parameters for
`org-list-to-generic'.  Return converted list as a string."
  (require 'ox-html)
  (org-list-to-generic list (org-combine-plists '(:backend html) params)))

(defun org-list-to-texinfo (list &optional params)
  "Convert LIST into a Texinfo list.
LIST is a parsed plain list, as returned by `org-list-to-lisp'.
PARAMS is a property list with overruling parameters for
`org-list-to-generic'.  Return converted list as a string."
  (require 'ox-texinfo)
  (org-list-to-generic list (org-combine-plists '(:backend texinfo) params)))

(defun org-list-to-org (list &optional params)
  "Convert LIST into an Org plain list.
LIST is as returned by `org-list-parse-list'.  PARAMS is a property list
with overruling parameters for `org-list-to-generic'."
  (let* ((make-item
	  (lambda (type _depth &optional c)
	    (concat (if (eq type 'ordered) "1. " "- ")
		    (and c (format "[@%d] " c)))))
	 (defaults
	   (list :istart make-item
		 :icount make-item
		 :ifmt (lambda (_type contents)
			 (replace-regexp-in-string "\n" "\n  " contents))
		 :dtend " :: "
		 :cbon "[X] "
		 :cboff "[ ] "
		 :cbtrans "[-] ")))
    (org-list-to-generic list (org-combine-plists defaults params))))

(defun org-list-to-subtree (list &optional start-level params)
  "Convert LIST into an Org subtree.
LIST is as returned by `org-list-to-lisp'.  Subtree starts at
START-LEVEL or level 1 if nil.  PARAMS is a property list with
overruling parameters for `org-list-to-generic'."
  (let* ((blank (pcase (cdr (assq 'heading org-blank-before-new-entry))
		  (`t t)
		  (`auto (save-excursion
			   (org-with-limited-levels (outline-previous-heading))
			   (org-previous-line-empty-p)))))
	 (level (or start-level 1))
	 (make-stars
	  (lambda (_type depth &optional _count)
	    ;; Return the string for the heading, depending on DEPTH
	    ;; of current sub-list.
	    (let ((oddeven-level (+ level (1- depth))))
	      (concat (make-string (if org-odd-levels-only
				       (1- (* 2 oddeven-level))
				     oddeven-level)
				   ?*)
		      " ")))))
    (org-list-to-generic
     list
     (org-combine-plists
      (list :splice t
	    :istart make-stars
	    :icount make-stars
	    :dtstart " " :dtend " "
	    :isep (if blank "\n\n" "\n")
	    :cbon "DONE " :cboff "TODO " :cbtrans "TODO ")
      params))))

(provide 'org-list)

;; Local variables:
;; generated-autoload-file: "org-loaddefs.el"
;; End:

;;; org-list.el ends here

debug log:

solving 05a73a609 ...
found 05a73a609 in https://git.savannah.gnu.org/cgit/emacs/org-mode.git

(*) 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).