emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
blob 5b619426d97450d2dabefa17fa92246cbac27cd9 141809 bytes (raw)
name: contrib/lisp/org-element.el 	 # note: path name is non-authoritative(*)

   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
 
;;; org-element.el --- Parser And Applications for Org syntax

;; Copyright (C) 2012  Free Software Foundation, Inc.

;; Author: Nicolas Goaziou <n.goaziou at gmail dot com>
;; Keywords: outlines, hypermedia, calendar, wp

;; This program 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.

;; This program 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.

;; This file is not part of GNU Emacs.

;; You should have received a copy of the GNU General Public License
;; along with this program.  If not, see <http://www.gnu.org/licenses/>.

;;; Commentary:

;; Org syntax can be divided into three categories: "Greater
;; elements", "Elements" and "Objects".

;; An object can be defined anywhere on a line.  It may span over more
;; than a line but never contains a blank one.  Objects belong to the
;; following types: `emphasis', `entity', `export-snippet',
;; `footnote-reference', `inline-babel-call', `inline-src-block',
;; `latex-fragment', `line-break', `link', `macro', `radio-target',
;; `statistics-cookie', `subscript', `superscript', `target',
;; `time-stamp' and `verbatim'.

;; An element always starts and ends at the beginning of a line.  The
;; only element's type containing objects is called a `paragraph'.
;; Other types are: `comment', `comment-block', `example-block',
;; `export-block', `fixed-width', `horizontal-rule', `keyword',
;; `latex-environment', `babel-call', `property-drawer',
;; `quote-section', `src-block', `table' and `verse-block'.

;; Elements containing paragraphs are called greater elements.
;; Concerned types are: `center-block', `drawer', `dynamic-block',
;; `footnote-definition', `headline', `inlinetask', `item',
;; `plain-list', `quote-block', `section' and `special-block'.

;; Greater elements (excepted `headline', `item' and `section' types)
;; and elements (excepted `keyword', `babel-call', and
;; `property-drawer' types) can have a fixed set of keywords as
;; attributes.  Those are called "affiliated keywords", to distinguish
;; them from others keywords, which are full-fledged elements.  In
;; particular, the "name" affiliated keyword allows to label almost
;; any element in an Org buffer.

;; Notwithstanding affiliated keywords, each greater element, element
;; and object has a fixed set of properties attached to it.  Among
;; them, three are shared by all types: `:begin' and `:end', which
;; refer to the beginning and ending buffer positions of the
;; considered element or object, and `:post-blank', which holds the
;; number of blank lines, or white spaces, at its end.

;; Some elements also have special properties whose value can hold
;; objects themselves (i.e. an item tag, an headline name, a table
;; cell).  Such values are called "secondary strings".

;; Lisp-wise, an element or an object can be represented as a list.
;; It follows the pattern (TYPE PROPERTIES CONTENTS), where:
;;   TYPE is a symbol describing the Org element or object.
;;   PROPERTIES is the property list attached to it.  See docstring of
;;              appropriate parsing function to get an exhaustive
;;              list.
;;   CONTENTS is a list of elements, objects or raw strings contained
;;            in the current element or object, when applicable.

;; An Org buffer is a nested list of such elements and objects, whose
;; type is `org-data' and properties is nil.

;; The first part of this file implements a parser and an interpreter
;; for each type of Org syntax.

;; The next two parts introduce two accessors and a function
;; retrieving the smallest element containing point (respectively
;; `org-element-get-property', `org-element-get-contents' and
;; `org-element-at-point').

;; The following part creates a fully recursive buffer parser.  It
;; also provides a tool to map a function to elements or objects
;; matching some criteria in the parse tree.  Functions of interest
;; are `org-element-parse-buffer', `org-element-map' and, to a lesser
;; extent, `org-element-parse-secondary-string'.

;; The penultimate part is the cradle of an interpreter for the
;; obtained parse tree: `org-element-interpret-data' (and its
;; relative, `org-element-interpret-secondary').

;; The library ends by furnishing a set of interactive tools for
;; element's navigation and manipulation.


;;; Code:

(eval-when-compile (require 'cl))
(require 'org)
(declare-function org-inlinetask-goto-end "org-inlinetask" ())

\f
;;; Greater elements

;; For each greater element type, we define a parser and an
;; interpreter.

;; A parser (`item''s excepted) accepts no argument and represents the
;; element or object as the list described above.  An interpreter
;; accepts two arguments: the list representation of the element or
;; object, and its contents.  The latter may be nil, depending on the
;; element or object considered.  It returns the appropriate Org
;; syntax, as a string.

;; Parsing functions must follow the naming convention:
;; org-element-TYPE-parser, where TYPE is greater element's type, as
;; defined in `org-element-greater-elements'.
;;
;; Similarly, interpreting functions must follow the naming
;; convention: org-element-TYPE-interpreter.

;; With the exception of `headline' and `item' types, greater elements
;; cannot contain other greater elements of their own type.

;; Beside implementing a parser and an interpreter, adding a new
;; greater element requires to tweak `org-element-guess-type'.
;; Moreover, the newly defined type must be added to both
;; `org-element-all-elements' and `org-element-greater-elements'.


;;;; Center Block

(defun org-element-center-block-parser ()
  "Parse a center block.

Return a list whose car is `center-block' and cdr is a plist
containing `:begin', `:end', `:hiddenp', `:contents-begin',
`:contents-end' and `:post-blank' keywords.

Assume point is at beginning or end of the block."
  (save-excursion
    (let* ((case-fold-search t)
	   (keywords (progn
		       (end-of-line)
		       (re-search-backward
			(concat "^[ \t]*#\\+begin_center") nil t)
		       (org-element-collect-affiliated-keywords)))
	   (begin (car keywords))
	   (contents-begin (progn (forward-line) (point)))
	   (hidden (org-truely-invisible-p))
	   (contents-end (progn (re-search-forward
				 (concat "^[ \t]*#\\+end_center") nil t)
				(point-at-bol)))
	   (pos-before-blank (progn (forward-line) (point)))
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol)))))
      `(center-block
	(:begin ,begin
		:end ,end
		:hiddenp ,hidden
		:contents-begin ,contents-begin
		:contents-end ,contents-end
		:post-blank ,(count-lines pos-before-blank end)
		,@(cadr keywords))))))

(defun org-element-center-block-interpreter (center-block contents)
  "Interpret CENTER-BLOCK element as Org syntax.
CONTENTS is the contents of the element."
  (format "#+begin_center\n%s#+end_center" contents))


;;;; Drawer

(defun org-element-drawer-parser ()
  "Parse a drawer.

Return a list whose car is `drawer' and cdr is a plist containing
`:drawer-name', `:begin', `:end', `:hiddenp', `:contents-begin',
`:contents-end' and `:post-blank' keywords.

Assume point is at beginning of drawer."
  (save-excursion
    (let* ((case-fold-search t)
	   (name (progn (looking-at org-drawer-regexp)
			(org-match-string-no-properties 1)))
	   (keywords (org-element-collect-affiliated-keywords))
	   (begin (car keywords))
	   (contents-begin (progn (forward-line) (point)))
	   (hidden (org-truely-invisible-p))
	   (contents-end (progn (re-search-forward "^[ \t]*:END:" nil t)
				(point-at-bol)))
	   (pos-before-blank (progn (forward-line) (point)))
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol)))))
      `(drawer
	(:begin ,begin
		:end ,end
		:drawer-name ,name
		:hiddenp ,hidden
		:contents-begin ,contents-begin
		:contents-end ,contents-end
		:post-blank ,(count-lines pos-before-blank end)
		,@(cadr keywords))))))

(defun org-element-drawer-interpreter (drawer contents)
  "Interpret DRAWER element as Org syntax.
CONTENTS is the contents of the element."
  (format ":%s:\n%s:END:"
	  (org-element-get-property :drawer-name drawer)
	  contents))


;;;; Dynamic Block

(defun org-element-dynamic-block-parser ()
  "Parse a dynamic block.

Return a list whose car is `dynamic-block' and cdr is a plist
containing `:block-name', `:begin', `:end', `:hiddenp',
`:contents-begin', `:contents-end', `:arguments' and
`:post-blank' keywords.

Assume point is at beginning of dynamic block."
  (save-excursion
    (let* ((case-fold-search t)
	   (name (progn (looking-at org-dblock-start-re)
			(org-match-string-no-properties 1)))
	   (arguments (org-match-string-no-properties 3))
	   (keywords (org-element-collect-affiliated-keywords))
	   (begin (car keywords))
	   (contents-begin (progn (forward-line) (point)))
	   (hidden (org-truely-invisible-p))
	   (contents-end (progn (re-search-forward org-dblock-end-re nil t)
				(point-at-bol)))
	   (pos-before-blank (progn (forward-line) (point)))
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol)))))
      (list 'dynamic-block
	    `(:begin ,begin
		     :end ,end
		     :block-name ,name
		     :arguments ,arguments
		     :hiddenp ,hidden
		     :contents-begin ,contents-begin
		     :contents-end ,contents-end
		     :post-blank ,(count-lines pos-before-blank end)
		     ,@(cadr keywords))))))

(defun org-element-dynamic-block-interpreter (dynamic-block contents)
  "Interpret DYNAMIC-BLOCK element as Org syntax.
CONTENTS is the contents of the element."
  (format "#+BEGIN: %s%s\n%s#+END:"
	  (org-element-get-property :block-name dynamic-block)
	  (let ((args (org-element-get-property :arguments dynamic-block)))
	    (and arg (concat " " args)))
	  contents))


;;;; Footnote Definition

(defun org-element-footnote-definition-parser ()
  "Parse a footnote definition.

Return a list whose car is `footnote-definition' and cdr is
a plist containing `:label', `:begin' `:end', `:contents-begin',
`:contents-end' and `:post-blank' keywords."
  (save-excursion
    (let* ((f-def (org-footnote-at-definition-p))
	   (label (car f-def))
	   (keywords (progn (goto-char (nth 1 f-def))
			    (org-element-collect-affiliated-keywords)))
	   (begin (car keywords))
	   (contents-begin (progn (looking-at (concat "\\[" label "\\]"))
				  (goto-char (match-end 0))
				  (org-skip-whitespace)
				  (point)))
	   (end (goto-char (nth 2 f-def)))
	   (contents-end (progn (skip-chars-backward " \r\t\n")
				(forward-line)
				(point))))
      `(footnote-definition
	(:label ,label
		:begin ,begin
		:end ,end
		:contents-begin ,contents-begin
		:contents-end ,contents-end
		:post-blank ,(count-lines contents-end end)
		,@(cadr keywords))))))

(defun org-element-footnote-definition-interpreter (footnote-definition contents)
  "Interpret FOOTNOTE-DEFINITION element as Org syntax.
CONTENTS is the contents of the footnote-definition."
  (concat (format "[%s]" (org-element-get-property :label footnote-definition))
	  " "
	  contents))


;;;; Headline

(defun org-element-headline-parser ()
  "Parse an headline.

Return a list whose car is `headline' and cdr is a plist
containing `:raw-value', `:title', `:begin', `:end',
`:pre-blank', `:hiddenp', `:contents-begin' and `:contents-end',
`:level', `:priority', `:tags', `:todo-keyword',`:todo-type',
`:scheduled', `:deadline', `:timestamp', `:clock', `:category',
`:quotedp', `:archivedp', `:commentedp' and `:footnote-section-p'
keywords.

The plist also contains any property set in the property drawer,
with its name in lowercase, the underscores replaced with hyphens
and colons at the beginning (i.e. `:custom-id').

Assume point is at beginning of the headline."
  (save-excursion
    (let* ((components (org-heading-components))
	   (level (nth 1 components))
	   (todo (nth 2 components))
	   (todo-type (and todo
			   (if (member todo org-done-keywords) 'done 'todo)))
	   (tags (nth 5 components))
	   (raw-value (nth 4 components))
	   (quotedp (string-match (format "^%s +" org-quote-string) raw-value))
	   (commentedp (string-match
			(format "^%s +" org-comment-string) raw-value))
	   (archivedp (and tags
			   (string-match (format ":%s:" org-archive-tag) tags)))
	   (footnote-section-p (and org-footnote-section
				    (string= org-footnote-section raw-value)))
	   (standard-props (let (plist)
			     (mapc
			      (lambda (p)
				(let ((p-name (downcase (car p))))
				  (while (string-match "_" p-name)
				    (setq p-name
					  (replace-match "-" nil nil p-name)))
				  (setq p-name (intern (concat ":" p-name)))
				  (setq plist
					(plist-put plist p-name (cdr p)))))
			      (org-entry-properties nil 'standard))
			     plist))
	   (time-props (org-entry-properties nil 'special "CLOCK"))
	   (scheduled (cdr (assoc "SCHEDULED" time-props)))
	   (deadline (cdr (assoc "DEADLINE" time-props)))
	   (clock (cdr (assoc "CLOCK" time-props)))
	   (timestamp (cdr (assoc "TIMESTAMP" time-props)))
	   (begin (point))
	   (pos-after-head (save-excursion (forward-line) (point)))
	   (contents-begin (save-excursion (forward-line)
					   (org-skip-whitespace)
					   (if (eobp) (point) (point-at-bol))))
	   (hidden (save-excursion (forward-line) (org-truely-invisible-p)))
	   (end (progn (goto-char (org-end-of-subtree t t))))
	   (contents-end (progn (skip-chars-backward " \r\t\n")
				(forward-line)
				(point)))
	   title)
      ;; Clean RAW-VALUE from any quote or comment string.
      (when (or quotedp commentedp)
	(setq raw-value
	      (replace-regexp-in-string
	       (concat "\\(" org-quote-string "\\|" org-comment-string "\\) +")
	       ""
	       raw-value)))
      ;; Clean TAGS from archive tag, if any.
      (when archivedp
	(setq tags
	      (and (not (string= tags (format ":%s:" org-archive-tag)))
		   (replace-regexp-in-string
		    (concat org-archive-tag ":") "" tags)))
	(when (string= tags ":") (setq tags nil)))
      ;; Then get TITLE.
      (setq title (org-element-parse-secondary-string
		   raw-value
		   (cdr (assq 'headline org-element-string-restrictions))))
      `(headline
	(:raw-value ,raw-value
		    :title ,title
		    :begin ,begin
		    :end ,end
		    :pre-blank ,(count-lines pos-after-head contents-begin)
		    :hiddenp ,hidden
		    :contents-begin ,contents-begin
		    :contents-end ,contents-end
		    :level ,level
		    :priority ,(nth 3 components)
		    :tags ,tags
		    :todo-keyword ,todo
		    :todo-type ,todo-type
		    :scheduled ,scheduled
		    :deadline ,deadline
		    :timestamp ,timestamp
		    :clock ,clock
		    :post-blank ,(count-lines contents-end end)
		    :footnote-section-p ,footnote-section-p
		    :archivedp ,archivedp
		    :commentedp ,commentedp
		    :quotedp ,quotedp
		    ,@standard-props)))))

(defun org-element-headline-interpreter (headline contents)
  "Interpret HEADLINE element as Org syntax.
CONTENTS is the contents of the element."
  (let* ((level (org-element-get-property :level headline))
	 (todo (org-element-get-property :todo-keyword headline))
	 (priority (org-element-get-property :priority headline))
	 (title (org-element-get-property :raw-value headline))
	 (tags (let ((tag-string (org-element-get-property :tags headline))
		     (archivedp (org-element-get-property :archivedp headline)))
		 (cond
		  ((and (not tag-string) archivedp)
		   (format ":%s:" org-archive-tag))
		  (archivedp (concat ":" org-archive-tag tag-string))
		  (t tag-string))))
	 (commentedp (org-element-get-property :commentedp headline))
	 (quotedp (org-element-get-property :quotedp headline))
	 (pre-blank (org-element-get-property :pre-blank headline))
	 (heading (concat (make-string level ?*)
			  (and todo (concat " " todo))
			  (and quotedp (concat " " org-quote-string))
			  (and commentedp (concat " " org-comment-string))
			  (and priority (concat " " priority))
			  (cond ((and org-footnote-section
				      (org-element-get-property
				       :footnote-section-p headline))
				 (concat " " org-footnote-section))
				(title (concat " " title)))))
	 ;; Align tags.
	 (tags-fmt (when tags
		     (let ((tags-len (length tags)))
		       (format "%% %ds"
			       (cond
				((zerop org-tags-column) (1+ tags-len))
				((< org-tags-column 0)
				 (max (- (+ org-tags-column (length heading)))
				      (1+ tags-len)))
				(t (max (+ (- org-tags-column (length heading))
					   tags-len)
					(1+ tags-len)))))))))
    (concat heading (and tags (format tags-fmt tags))
	    (make-string (1+ pre-blank) 10)
	    contents)))


;;;; Inlinetask

(defun org-element-inlinetask-parser ()
  "Parse an inline task.

Return a list whose car is `inlinetask' and cdr is a plist
containing `:raw-value', `:title', `:begin', `:end', `:hiddenp',
`:contents-begin' and `:contents-end', `:level', `:priority',
`:raw-value', `:tags', `:todo-keyword', `:todo-type',
`:scheduled', `:deadline', `:timestamp', `:clock' and
`:post-blank' keywords.

The plist also contains any property set in the property drawer,
with its name in lowercase, the underscores replaced with hyphens
and colons at the beginning (i.e. `:custom-id').

Assume point is at beginning of the inline task."
  (save-excursion
    (let* ((keywords (org-element-collect-affiliated-keywords))
	   (begin (car keywords))
	   (components (org-heading-components))
	   (todo (nth 2 components))
	   (todo-type (and todo
			   (if (member todo org-done-keywords) 'done 'todo)))
	   (raw-value (nth 4 components))
	   (standard-props (let (plist)
			     (mapc
			      (lambda (p)
				(let ((p-name (downcase (car p))))
				  (while (string-match "_" p-name)
				    (setq p-name
					  (replace-match "-" nil nil p-name)))
				  (setq p-name (intern (concat ":" p-name)))
				  (setq plist
					(plist-put plist p-name (cdr p)))))
			      (org-entry-properties nil 'standard))
			     plist))
	   (time-props (org-entry-properties nil 'special "CLOCK"))
	   (scheduled (cdr (assoc "SCHEDULED" time-props)))
	   (deadline (cdr (assoc "DEADLINE" time-props)))
	   (clock (cdr (assoc "CLOCK" time-props)))
	   (timestamp (cdr (assoc "TIMESTAMP" time-props)))
	   (title (org-element-parse-secondary-string
		   raw-value
		   (cdr (assq 'inlinetask org-element-string-restrictions))))
	   (contents-begin (save-excursion (forward-line) (point)))
	   (hidden (org-truely-invisible-p))
	   (pos-before-blank (org-inlinetask-goto-end))
	   ;; In the case of a single line task, CONTENTS-BEGIN and
	   ;; CONTENTS-END might overlap.
	   (contents-end (max contents-begin
			      (save-excursion (forward-line -1) (point))))
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol)))))
      `(inlinetask
	(:raw-value ,raw-value
		    :title ,title
		    :begin ,begin
		    :end ,end
		    :hiddenp ,(and (> contents-end contents-begin) hidden)
		    :contents-begin ,contents-begin
		    :contents-end ,contents-end
		    :level ,(nth 1 components)
		    :priority ,(nth 3 components)
		    :tags ,(nth 5 components)
		    :todo-keyword ,todo
		    :todo-type ,todo-type
		    :scheduled ,scheduled
		    :deadline ,deadline
		    :timestamp ,timestamp
		    :clock ,clock
		    :post-blank ,(count-lines pos-before-blank end)
		    ,@standard-props
		    ,@(cadr keywords))))))

(defun org-element-inlinetask-interpreter (inlinetask contents)
  "Interpret INLINETASK element as Org syntax.
CONTENTS is the contents of inlinetask."
  (let* ((level (org-element-get-property :level inlinetask))
	 (todo (org-element-get-property :todo-keyword inlinetask))
	 (priority (org-element-get-property :priority inlinetask))
	 (title (org-element-get-property :raw-value inlinetask))
	 (tags (org-element-get-property :tags inlinetask))
	 (task (concat (make-string level ?*)
		       (and todo (concat " " todo))
		       (and priority (concat " " priority))
		       (and title (concat " " title))))
	 ;; Align tags.
	 (tags-fmt (when tags
		     (format "%% %ds"
			     (cond
			      ((zerop org-tags-column) 1)
			      ((< 0 org-tags-column)
			       (max (+ org-tags-column
				       (length inlinetask)
				       (length tags))
				    1))
			      (t (max (- org-tags-column (length inlinetask))
				      1)))))))
    (concat inlinetask (and tags (format tags-fmt tags) "\n" contents))))


;;;; Item

(defun org-element-item-parser (struct)
  "Parse an item.

STRUCT is the structure of the plain list.

Return a list whose car is `item' and cdr is a plist containing
`:bullet', `:begin', `:end', `:contents-begin', `:contents-end',
`:checkbox', `:counter', `:tag', `:raw-tag', `:structure',
`:hiddenp' and `:post-blank' keywords.

Assume point is at the beginning of the item."
  (save-excursion
    (beginning-of-line)
    (let* ((begin (point))
	   (bullet (org-list-get-bullet (point) struct))
	   (checkbox (let ((box (org-list-get-checkbox begin struct)))
		       (cond ((equal "[ ]" box) 'off)
			     ((equal "[X]" box) 'on)
			     ((equal "[-]" box) 'trans))))
	   (counter (let ((c (org-list-get-counter begin struct)))
		      (cond
		       ((not c) nil)
		       ((string-match "[A-Za-z]" c)
			(- (string-to-char (upcase (match-string 0 c)))
			   64))
		       ((string-match "[0-9]+" c)
			(string-to-number (match-string 0 c))))))
	   (raw-tag (org-list-get-tag begin struct))
	   (tag (and raw-tag
		     (org-element-parse-secondary-string
		      raw-tag
		      (cdr (assq 'item org-element-string-restrictions)))))
	   (end (org-list-get-item-end begin struct))
	   (contents-begin (progn (looking-at org-list-full-item-re)
				  (goto-char (match-end 0))
				  (org-skip-whitespace)
				  ;; If first line isn't empty,
				  ;; contents really start at the text
				  ;; after item's meta-data.
				  (if (= (point-at-bol) begin) (point)
				    (point-at-bol))))
	   (hidden (progn (forward-line)
			  (and (not (= (point) end))
			       (org-truely-invisible-p))))
	   (contents-end (progn (goto-char end)
				(skip-chars-backward " \r\t\n")
				(forward-line)
				(point))))
      `(item
	(:bullet ,bullet
		 :begin ,begin
		 :end ,end
		 ;; CONTENTS-BEGIN and CONTENTS-END may be mixed
		 ;; up in the case of an empty item separated
		 ;; from the next by a blank line.  Thus, ensure
		 ;; the former is always the smallest of two.
		 :contents-begin ,(min contents-begin contents-end)
		 :contents-end ,(max contents-begin contents-end)
		 :checkbox ,checkbox
		 :counter ,counter
		 :raw-tag ,raw-tag
		 :tag ,tag
		 :hiddenp ,hidden
		 :structure ,struct
		 :post-blank ,(count-lines contents-end end))))))

(defun org-element-item-interpreter (item contents)
  "Interpret ITEM element as Org syntax.
CONTENTS is the contents of the element."
  (let* ((bullet
	  (let* ((beg (org-element-get-property :begin item))
		 (struct (org-element-get-property :structure item))
		 (pre (org-list-prevs-alist struct))
		 (bul (org-element-get-property :bullet item)))
	    (org-list-bullet-string
	     (if (not (eq (org-list-get-list-type beg struct pre) 'ordered)) "-"
	       (let ((num
		      (car
		       (last
			(org-list-get-item-number
			 beg struct pre (org-list-parents-alist struct))))))
		 (format "%d%s"
			 num
			 (if (eq org-plain-list-ordered-item-terminator ?\)) ")"
			   ".")))))))
	 (checkbox (org-element-get-property :checkbox item))
	 (counter (org-element-get-property :counter item))
	 (tag (org-element-get-property :raw-tag item))
	 ;; Compute indentation.
	 (ind (make-string (length bullet) 32)))
    ;; Indent contents.
    (concat
     bullet
     (and counter (format "[@%d] " counter))
     (cond
      ((eq checkbox 'on) "[X] ")
      ((eq checkbox 'off) "[ ] ")
      ((eq checkbox 'trans) "[-] "))
     (and tag (format "%s :: " tag))
     (org-trim
      (replace-regexp-in-string "\\(^\\)[ \t]*\\S-" ind contents nil nil 1)))))


;;;; Plain List

(defun org-element-plain-list-parser (&optional structure)
  "Parse a plain list.

Optional argument STRUCTURE, when non-nil, is the structure of
the plain list being parsed.

Return a list whose car is `plain-list' and cdr is a plist
containing `:type', `:begin', `:end', `:contents-begin' and
`:contents-end', `:level', `:structure' and `:post-blank'
keywords.

Assume point is at one of the list items."
  (save-excursion
    (let* ((struct (or structure (org-list-struct)))
	   (prevs (org-list-prevs-alist struct))
	   (parents (org-list-parents-alist struct))
	   (type (org-list-get-list-type (point) struct prevs))
	   (contents-begin (goto-char
			    (org-list-get-list-begin (point) struct prevs)))
	   (keywords (org-element-collect-affiliated-keywords))
	   (begin (car keywords))
	   (contents-end (goto-char
			  (org-list-get-list-end (point) struct prevs)))
	   (end (save-excursion (org-skip-whitespace)
				(if (eobp) (point) (point-at-bol))))
	   (level 0))
      ;; Get list level.
      (let ((item contents-begin))
	(while (setq item
		     (org-list-get-parent
		      (org-list-get-list-begin item struct prevs)
		      struct parents))
	  (incf level)))
      ;; Blank lines below list belong to the top-level list only.
      (when (> level 0)
	(setq end (min (org-list-get-bottom-point struct)
		       (progn (org-skip-whitespace)
			      (if (eobp) (point) (point-at-bol))))))
      ;; Return value.
      `(plain-list
	(:type ,type
	       :begin ,begin
	       :end ,end
	       :contents-begin ,contents-begin
	       :contents-end ,contents-end
	       :level ,level
	       :structure ,struct
	       :post-blank ,(count-lines contents-end end)
	       ,@(cadr keywords))))))

(defun org-element-plain-list-interpreter (plain-list contents)
  "Interpret PLAIN-LIST element as Org syntax.
CONTENTS is the contents of the element."
  contents)


;;;; Quote Block

(defun org-element-quote-block-parser ()
  "Parse a quote block.

Return a list whose car is `quote-block' and cdr is a plist
containing `:begin', `:end', `:hiddenp', `:contents-begin',
`:contents-end' and `:post-blank' keywords.

Assume point is at beginning or end of the block."
  (save-excursion
    (let* ((case-fold-search t)
	   (keywords (progn
		       (end-of-line)
		       (re-search-backward
			(concat "^[ \t]*#\\+begin_quote") nil t)
		       (org-element-collect-affiliated-keywords)))
	   (begin (car keywords))
	   (contents-begin (progn (forward-line) (point)))
	   (hidden (org-truely-invisible-p))
	   (contents-end (progn (re-search-forward
				 (concat "^[ \t]*#\\+end_quote") nil t)
				(point-at-bol)))
	   (pos-before-blank (progn (forward-line) (point)))
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol)))))
      `(quote-block
	(:begin ,begin
		:end ,end
		:hiddenp ,hidden
		:contents-begin ,contents-begin
		:contents-end ,contents-end
		:post-blank ,(count-lines pos-before-blank end)
		,@(cadr keywords))))))

(defun org-element-quote-block-interpreter (quote-block contents)
  "Interpret QUOTE-BLOCK element as Org syntax.
CONTENTS is the contents of the element."
  (format "#+begin_quote\n%s#+end_quote" contents))


;;;; Section

(defun org-element-section-parser ()
  "Parse a section.

Return a list whose car is `section' and cdr is a plist
containing `:begin', `:end', `:contents-begin', `contents-end'
and `:post-blank' keywords."
  (save-excursion
    ;; Beginning of section is the beginning of the first non-blank
    ;; line after previous headline.
    (org-with-limited-levels
     (let ((begin
	    (save-excursion
	      (outline-previous-heading)
	      (if (not (org-at-heading-p)) (point)
		(forward-line) (org-skip-whitespace) (point-at-bol))))
	   (end (progn (outline-next-heading) (point)))
	   (pos-before-blank (progn (skip-chars-backward " \r\t\n")
				    (forward-line)
				    (point))))
       `(section
	 (:begin ,begin
		 :end ,end
		 :contents-begin ,begin
		 :contents-end ,pos-before-blank
		 :post-blank ,(count-lines pos-before-blank end)))))))

(defun org-element-section-interpreter (section contents)
  "Interpret SECTION element as Org syntax.
CONTENTS is the contents of the element."
  contents)


;;;; Special Block

(defun org-element-special-block-parser ()
  "Parse a special block.

Return a list whose car is `special-block' and cdr is a plist
containing `:type', `:begin', `:end', `:hiddenp',
`:contents-begin', `:contents-end' and `:post-blank' keywords.

Assume point is at beginning or end of the block."
  (save-excursion
    (let* ((case-fold-search t)
	   (type (progn (looking-at
			 "[ \t]*#\\+\\(?:begin\\|end\\)_\\([-A-Za-z0-9]+\\)")
			(org-match-string-no-properties 1)))
	   (keywords (progn
		       (end-of-line)
		       (re-search-backward
			(concat "^[ \t]*#\\+begin_" type) nil t)
		       (org-element-collect-affiliated-keywords)))
	   (begin (car keywords))
	   (contents-begin (progn (forward-line) (point)))
	   (hidden (org-truely-invisible-p))
	   (contents-end (progn (re-search-forward
				 (concat "^[ \t]*#\\+end_" type) nil t)
				(point-at-bol)))
	   (pos-before-blank (progn (forward-line) (point)))
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol)))))
      `(special-block
	(:type ,type
	       :begin ,begin
	       :end ,end
	       :hiddenp ,hidden
	       :contents-begin ,contents-begin
	       :contents-end ,contents-end
	       :post-blank ,(count-lines pos-before-blank end)
	       ,@(cadr keywords))))))

(defun org-element-special-block-interpreter (special-block contents)
  "Interpret SPECIAL-BLOCK element as Org syntax.
CONTENTS is the contents of the element."
  (let ((block-type (org-element-get-property :type special-block)))
    (format "#+begin_%s\n%s#+end_%s" block-type contents block-type)))


\f
;;; Elements

;; For each element, a parser and an interpreter are also defined.
;; Both follow the same naming convention used for greater elements.

;; Also, as for greater elements, adding a new element type is done
;; through the following steps: implement a parser and an interpreter,
;; tweak `org-element-guess-type' so that it recognizes the new type
;; and add that new type to `org-element-all-elements'.

;; As a special case, when the newly defined type is a block type,
;; `org-element-non-recursive-block-alist' has to be modified
;; accordingly.


;;;; Babel Call

(defun org-element-babel-call-parser ()
  "Parse a babel call.

Return a list whose car is `babel-call' and cdr is a plist
containing `:begin', `:end', `:info' and `:post-blank' as
keywords."
  (save-excursion
    (let ((info (progn (looking-at org-babel-block-lob-one-liner-regexp)
		       (org-babel-lob-get-info)))
	  (beg (point-at-bol))
	  (pos-before-blank (progn (forward-line) (point)))
	  (end (progn (org-skip-whitespace)
		      (if (eobp) (point) (point-at-bol)))))
      `(babel-call
	(:beg ,beg
	      :end ,end
	      :info ,info
	      :post-blank ,(count-lines pos-before-blank end))))))

(defun org-element-babel-call-interpreter (inline-babel-call contents)
  "Interpret INLINE-BABEL-CALL object as Org syntax.
CONTENTS is nil."
  (let* ((babel-info (org-element-get-property :info inline-babel-call))
	 (main-source (car babel-info))
	 (post-options (nth 1 babel-info)))
    (concat "#+call: "
	    (if (string-match "\\[\\(\\[.*?\\]\\)\\]" main-source)
		;; Remove redundant square brackets.
		(replace-match
		 (match-string 1 main-source) nil nil main-source)
	      main-source)
	    (and post-options (format "[%s]" post-options)))))


;;;; Comment

(defun org-element-comment-parser ()
  "Parse a comment.

Return a list whose car is `comment' and cdr is a plist
containing `:begin', `:end', `:value' and `:post-blank'
keywords."
  (let (beg-coms begin end end-coms keywords)
    (save-excursion
      (if (looking-at "#")
	  ;; First type of comment: comments at column 0.
	  (let ((comment-re "^\\([^#]\\|#\\+[a-z]\\)"))
	    (save-excursion
	      (re-search-backward comment-re nil 'move)
	      (if (bobp) (setq keywords nil beg-coms (point))
		(forward-line)
		(setq keywords (org-element-collect-affiliated-keywords)
		      beg-coms (point))))
	    (re-search-forward comment-re nil 'move)
	    (setq end-coms (if (eobp) (point) (match-beginning 0))))
	;; Second type of comment: indented comments.
	(let ((comment-re "[ \t]*#\\+\\(?: \\|$\\)"))
	  (unless (bobp)
	    (while (and (not (bobp)) (looking-at comment-re))
	      (forward-line -1))
	    (unless (looking-at comment-re) (forward-line)))
	  (setq beg-coms (point))
	  (setq keywords (org-element-collect-affiliated-keywords))
	  ;; Get comments ending.  This may not be accurate if
	  ;; commented lines within an item are followed by commented
	  ;; lines outside of the list.  Though, parser will always
	  ;; get it right as it already knows surrounding element and
	  ;; has narrowed buffer to its contents.
	  (while (looking-at comment-re) (forward-line))
	  (setq end-coms (point))))
      ;; Find position after blank.
      (goto-char end-coms)
      (org-skip-whitespace)
      (setq end (if (eobp) (point) (point-at-bol))))
    `(comment
      (:begin ,(or (car keywords) beg-coms)
	      :end ,end
	      :value ,(buffer-substring-no-properties beg-coms end-coms)
	      :post-blank ,(count-lines end-coms end)
	      ,@(cadr keywords)))))

(defun org-element-comment-interpreter (comment contents)
  "Interpret COMMENT element as Org syntax.
CONTENTS is nil."
  (org-element-get-property :value comment))


;;;; Comment Block

(defun org-element-comment-block-parser ()
  "Parse an export block.

Return a list whose car is `comment-block' and cdr is a plist
containing `:begin', `:end', `:hiddenp', `:value' and
`:post-blank' keywords."
  (save-excursion
    (end-of-line)
    (let* ((case-fold-search t)
	   (keywords (progn
		       (re-search-backward "^[ \t]*#\\+begin_comment" nil t)
		       (org-element-collect-affiliated-keywords)))
	   (begin (car keywords))
	   (contents-begin (progn (forward-line) (point)))
	   (hidden (org-truely-invisible-p))
	   (contents-end (progn (re-search-forward
				 "^[ \t]*#\\+end_comment" nil t)
				(point-at-bol)))
	   (pos-before-blank (progn (forward-line) (point)))
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol))))
	   (value (buffer-substring-no-properties contents-begin contents-end)))
      `(comment-block
	(:begin ,begin
		:end ,end
		:value ,value
		:hiddenp ,hidden
		:post-blank ,(count-lines pos-before-blank end)
		,@(cadr keywords))))))

(defun org-element-comment-block-interpreter (comment-block contents)
  "Interpret COMMENT-BLOCK element as Org syntax.
CONTENTS is nil."
  (concat "#+begin_comment\n"
	  (org-remove-indentation
	   (org-element-get-property :value comment-block))
	  "#+begin_comment"))


;;;; Example Block

(defun org-element-example-block-parser ()
  "Parse an example block.

Return a list whose car is `example' and cdr is a plist
containing `:begin', `:end', `:options', `:hiddenp', `:value' and
`:post-blank' keywords."
  (save-excursion
    (end-of-line)
    (let* ((case-fold-search t)
	   (switches (progn
		       (re-search-backward
			"^[ \t]*#\\+begin_example\\(?: +\\(.*\\)\\)?" nil t)
		       (org-match-string-no-properties 1)))
	   (keywords (org-element-collect-affiliated-keywords))
	   (begin (car keywords))
	   (contents-begin (progn (forward-line) (point)))
	   (hidden (org-truely-invisible-p))
	   (contents-end (progn
			   (re-search-forward "^[ \t]*#\\+end_example" nil t)
			   (point-at-bol)))
	   (value (buffer-substring-no-properties contents-begin contents-end))
	   (pos-before-blank (progn (forward-line) (point)))
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol)))))
      `(example-block
	(:begin ,begin
		:end ,end
		:value ,value
		:switches ,switches
		:hiddenp ,hidden
		:post-blank ,(count-lines pos-before-blank end)
		,@(cadr keywords))))))

(defun org-element-example-block-interpreter (example-block contents)
  "Interpret EXAMPLE-BLOCK element as Org syntax.
CONTENTS is nil."
  (let ((options (org-element-get-property :options example-block)))
    (concat "#+begin_example" (and options (concat " " options)) "\n"
	    (org-remove-indentation
	     (org-element-get-property :value example-block))
	    "#+end_example")))


;;;; Export Block

(defun org-element-export-block-parser ()
  "Parse an export block.

Return a list whose car is `export-block' and cdr is a plist
containing `:begin', `:end', `:type', `:hiddenp', `:value' and
`:post-blank' keywords."
  (save-excursion
    (end-of-line)
    (let* ((case-fold-search t)
	   (contents)
	   (type (progn (re-search-backward
			 (concat "[ \t]*#\\+begin_"
				 (org-re "\\([[:alnum:]]+\\)")))
			(downcase (org-match-string-no-properties 1))))
	   (keywords (org-element-collect-affiliated-keywords))
	   (begin (car keywords))
	   (contents-begin (progn (forward-line) (point)))
	   (hidden (org-truely-invisible-p))
	   (contents-end (progn (re-search-forward
				 (concat "^[ \t]*#\\+end_" type) nil t)
				(point-at-bol)))
	   (pos-before-blank (progn (forward-line) (point)))
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol))))
	   (value (buffer-substring-no-properties contents-begin contents-end)))
      `(export-block
	(:begin ,begin
		:end ,end
		:type ,type
		:value ,value
		:hiddenp ,hidden
		:post-blank ,(count-lines pos-before-blank end)
		,@(cadr keywords))))))

(defun org-element-export-block-interpreter (export-block contents)
  "Interpret EXPORT-BLOCK element as Org syntax.
CONTENTS is nil."
  (let ((type (org-element-get-property :type export-block)))
    (concat (format "#+begin_%s\n" type)
	    (org-element-get-property :value export-block)
	    (format "#+end_%s" type))))


;;;; Fixed-width

(defun org-element-fixed-width-parser ()
  "Parse a fixed-width section.

Return a list whose car is `fixed-width' and cdr is a plist
containing `:begin', `:end', `:value' and `:post-blank'
keywords."
  (let ((fixed-re "[ \t]*:\\( \\|$\\)")
	beg-area begin end value pos-before-blank keywords)
    (save-excursion
      ;; Move to the beginning of the fixed-width area.
      (unless (bobp)
	(while (and (not (bobp)) (looking-at fixed-re))
	  (forward-line -1))
	(unless (looking-at fixed-re) (forward-line 1)))
      (setq beg-area (point))
      ;; Get affiliated keywords, if any.
      (setq keywords (org-element-collect-affiliated-keywords))
      ;; Store true beginning of element.
      (setq begin (car keywords))
      ;; Get ending of fixed-width area.  If point is in a list,
      ;; ensure to not get outside of it.
      (let* ((itemp (org-in-item-p))
	     (max-pos (if itemp
			  (org-list-get-bottom-point
			   (save-excursion (goto-char itemp) (org-list-struct)))
			(point-max))))
	(while (and (looking-at fixed-re) (< (point) max-pos))
	  (forward-line)))
      (setq pos-before-blank (point))
      ;; Find position after blank
      (org-skip-whitespace)
      (setq end (if (eobp) (point) (point-at-bol)))
      ;; Extract value.
      (setq value (buffer-substring-no-properties beg-area pos-before-blank)))
    `(fixed-width
      (:begin ,begin
	      :end ,end
	      :value ,value
	      :post-blank ,(count-lines pos-before-blank end)
	      ,@(cadr keywords)))))

(defun org-element-fixed-width-interpreter (fixed-width contents)
  "Interpret FIXED-WIDTH element as Org syntax.
CONTENTS is nil."
  (org-remove-indentation (org-element-get-property :value fixed-width)))


;;;; Horizontal Rule

(defun org-element-horizontal-rule-parser ()
  "Parse an horizontal rule.

   Return a list whose car is `horizontal-rule' and cdr is
   a plist containing `:begin', `:end' and `:post-blank'
   keywords."
  (save-excursion
    (let* ((keywords (org-element-collect-affiliated-keywords))
	   (begin (car keywords))
	   (post-hr (progn (forward-line) (point)))
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol)))))
      `(horizontal-rule
	(:begin ,begin
		:end ,end
		:post-blank ,(count-lines post-hr end)
		,@(cadr keywords))))))

(defun org-element-horizontal-rule-interpreter (horizontal-rule contents)
  "Interpret HORIZONTAL-RULE element as Org syntax.
CONTENTS is nil."
  "-----")


;;;; Keyword

(defun org-element-keyword-parser ()
  "Parse a keyword at point.

Return a list whose car is `keyword' and cdr is a plist
containing `:key', `:value', `:begin', `:end' and `:post-blank'
keywords."
  (save-excursion
    (let* ((begin (point))
	   (key (progn (looking-at
			"[ \t]*#\\+\\(\\(?:[a-z]+\\)\\(?:_[a-z]+\\)*\\):")
		       (org-match-string-no-properties 1)))
	   (value (org-trim (buffer-substring-no-properties
			     (match-end 0) (point-at-eol))))
	   (pos-before-blank (progn (forward-line) (point)))
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol)))))
      `(keyword
	(:key ,key
	      :value ,value
	      :begin ,begin
	      :end ,end
	      :post-blank ,(count-lines pos-before-blank end))))))

(defun org-element-keyword-interpreter (keyword contents)
  "Interpret KEYWORD element as Org syntax.
CONTENTS is nil."
  (format "#+%s: %s"
	  (org-element-get-property :key keyword)
	  (org-element-get-property :value keyword)))


;;;; Latex Environment

(defun org-element-latex-environment-parser ()
  "Parse a LaTeX environment.

Return a list whose car is `latex-environment' and cdr is a plist
containing `:begin', `:end', `:value' and `:post-blank' keywords."
  (save-excursion
    (end-of-line)
    (let* ((case-fold-search t)
	   (contents-begin (re-search-backward "^[ \t]*\\\\begin" nil t))
	   (keywords (org-element-collect-affiliated-keywords))
	   (begin (car keywords))
	   (contents-end (progn (re-search-forward "^[ \t]*\\\\end")
				(forward-line)
				(point)))
	   (value (buffer-substring-no-properties contents-begin contents-end))
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol)))))
      `(latex-environment
	(:begin ,begin
		:end ,end
		:value ,value
		:post-blank ,(count-lines contents-end end)
		,@(cadr keywords))))))

(defun org-element-latex-environment-interpreter (latex-environment contents)
  "Interpret LATEX-ENVIRONMENT element as Org syntax.
CONTENTS is nil."
  (org-element-get-property :value latex-environment))


;;;; Paragraph

(defun org-element-paragraph-parser ()
  "Parse a paragraph.

Return a list whose car is `paragraph' and cdr is a plist
containing `:begin', `:end', `:contents-begin' and
`:contents-end' and `:post-blank' keywords.

Assume point is at the beginning of the paragraph."
  (save-excursion
    (let* ((contents-begin (point))
	   (keywords (org-element-collect-affiliated-keywords))
	   (begin (car keywords))
	   (contents-end (progn
			   (end-of-line)
			   (if (re-search-forward
				org-element-paragraph-separate nil 'm)
			       (progn (forward-line -1) (end-of-line) (point))
			     (point))))
	   (pos-before-blank (progn (forward-line) (point)))
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol)))))
      `(paragraph
	(:begin ,begin
		:end ,end
		:contents-begin ,contents-begin
		:contents-end ,contents-end
		:post-blank ,(count-lines pos-before-blank end)
		,@(cadr keywords))))))

(defun org-element-paragraph-interpreter (paragraph contents)
  "Interpret PARAGRAPH element as Org syntax.
CONTENTS is the contents of the element."
  contents)


;;;; Property Drawer

(defun org-element-property-drawer-parser ()
  "Parse a property drawer.

Return a list whose car is `property-drawer' and cdr is a plist
containing `:begin', `:end', `:hiddenp', `:contents-begin',
`:contents-end', `:properties' and `:post-blank' keywords."
  (save-excursion
    (let ((case-fold-search t)
	  (begin (progn (end-of-line)
			(re-search-backward org-property-start-re)
			(match-beginning 0)))
	  (contents-begin (progn (forward-line) (point)))
	  (hidden (org-truely-invisible-p))
	  (properties (let (val)
			(while (not (looking-at "^[ \t]*:END:"))
			  (when (looking-at
				 (org-re
				  "[ \t]*:\\([[:alpha:]][[:alnum:]_-]*\\):"))
			    (push (cons (match-string 1)
					(org-trim
					 (buffer-substring
					  (match-end 0) (point-at-eol))))
				  val))
			  (forward-line))
			val))
	  (contents-end (progn (re-search-forward "^[ \t]*:END:" nil t)
			       (point-at-bol)))
	  (pos-before-blank (progn (forward-line) (point)))
	  (end (progn (org-skip-whitespace)
		      (if (eobp) (point) (point-at-bol)))))
      `(property-drawer
	(:begin ,begin
		:end ,end
		:hiddenp ,hidden
		:properties ,properties
		:post-blank ,(count-lines pos-before-blank end))))))

(defun org-element-property-drawer-interpreter (property-drawer contents)
  "Interpret PROPERTY-DRAWER element as Org syntax.
CONTENTS is nil."
  (let ((props (org-element-get-property :properties property-drawer)))
    (concat
     ":PROPERTIES:\n"
     (mapconcat (lambda (p)
		  (format org-property-format (format ":%s:" (car p)) (cdr p)))
		(nreverse props) "\n")
     "\n:END:")))


;;;; Quote Section

(defun org-element-quote-section-parser ()
  "Parse a quote section.

Return a list whose car is `quote-section' and cdr is a plist
containing `:begin', `:end', `:value' and `:post-blank'
keywords.

Assume point is at beginning of the section."
  (save-excursion
    (let* ((begin (point))
	   (end (progn (org-with-limited-levels (outline-next-heading))
		       (point)))
	   (pos-before-blank (progn (skip-chars-backward " \r\t\n")
				    (forward-line)
				    (point)))
	   (value (buffer-substring-no-properties begin pos-before-blank)))
      `(quote-section
	(:begin ,begin
		:end ,end
		:value ,value
		:post-blank ,(count-lines pos-before-blank end))))))

(defun org-element-quote-section-interpreter (quote-section contents)
  "Interpret QUOTE-SECTION element as Org syntax.
CONTENTS is nil."
  (org-element-get-property :value quote-section))


;;;; Src Block

(defun org-element-src-block-parser ()
  "Parse a src block.

Return a list whose car is `src-block' and cdr is a plist
containing `:language', `:switches', `:parameters', `:begin',
`:end', `:hiddenp', `:contents-begin', `:contents-end', `:value'
and `:post-blank' keywords."
  (save-excursion
    (end-of-line)
    (let* ((case-fold-search t)
	   ;; Get position at beginning of block.
	   (contents-begin
	    (re-search-backward
	     (concat "^[ \t]*#\\+begin_src"
		     "\\(?: +\\(\\S-+\\)\\)?"	     ; language
		     "\\(\\(?: +[-+][A-Za-z]\\)*\\)" ; switches
		     "\\(.*\\)[ \t]*$")		     ; arguments
	     nil t))
	   ;; Get language as a string.
	   (language (org-match-string-no-properties 1))
	   ;; Get switches.
	   (switches (org-match-string-no-properties 2))
	   ;; Get parameters.
	   (parameters (org-trim (org-match-string-no-properties 3)))
	   ;; Get affiliated keywords.
	   (keywords (org-element-collect-affiliated-keywords))
	   ;; Get beginning position.
	   (begin (car keywords))
	   ;; Get position at end of block.
	   (contents-end (progn (re-search-forward "^[ \t]*#\\+end_src" nil t)
				(forward-line)
				(point)))
	   ;; Retrieve code.
	   (value (buffer-substring-no-properties
		   (save-excursion (goto-char contents-begin)
				   (forward-line)
				   (point))
		   (match-beginning 0)))
	   ;; Get position after ending blank lines.
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol))))
	   ;; Get visibility status.
	   (hidden (progn (goto-char contents-begin)
			  (forward-line)
			  (org-truely-invisible-p))))
      `(src-block
	(:language ,language
		   :switches ,switches
		   :parameters ,parameters
		   :begin ,begin
		   :end ,end
		   :hiddenp ,hidden
		   :value ,value
		   :post-blank ,(count-lines contents-end end)
		   ,@(cadr keywords))))))

(defun org-element-src-block-interpreter (src-block contents)
  "Interpret SRC-BLOCK element as Org syntax.
CONTENTS is nil."
  (let ((lang (org-element-get-property :language src-block))
	(switches (org-element-get-property :switches src-block))
	(params (org-element-get-property :parameters src-block))
	(value (let ((val (org-element-get-property :value src-block)))
		 (cond
		  (org-src-preserve-indentation val)
		  ((zerop org-edit-src-content-indentation)
		   (org-remove-indentation val))
		  (t
		   (let ((ind (make-string
			       org-edit-src-content-indentation 32)))
		     (replace-regexp-in-string
		      "\\(^\\)[ \t]*\\S-" ind
		      (org-remove-indentation val) nil nil 1)))))))
    (concat (format "#+begin_src%s\n"
		    (concat (and lang (concat " " lang))
			    (and switches (concat " " switches))
			    (and params (concat " " params))))
	    value
	    "#+end_src")))


;;;; Table

(defun org-element-table-parser ()
  "Parse a table at point.

Return a list whose car is `table' and cdr is a plist containing
`:begin', `:end', `:contents-begin', `:contents-end', `:tblfm',
`:type', `:raw-table'  and `:post-blank' keywords."
  (save-excursion
    (let* ((table-begin (goto-char (org-table-begin t)))
	   (type (if (org-at-table.el-p) 'table.el 'org))
	   (keywords (org-element-collect-affiliated-keywords))
	   (begin (car keywords))
	   (table-end (goto-char (marker-position (org-table-end t))))
	   (tblfm (when (looking-at "[ \t]*#\\+tblfm: +\\(.*\\)[ \t]*")
		    (prog1 (org-match-string-no-properties 1)
		      (forward-line))))
	   (pos-before-blank (point))
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol))))
	   (raw-table (org-remove-indentation
		       (buffer-substring-no-properties table-begin table-end))))
      `(table
	(:begin ,begin
		:end ,end
		:type ,type
		:raw-table ,raw-table
		:tblfm ,tblfm
		:post-blank ,(count-lines pos-before-blank end)
		,@(cadr keywords))))))

(defun org-element-table-interpreter (table contents)
  "Interpret TABLE element as Org syntax.
CONTENTS is nil."
  (org-element-get-property :raw-table table))


;;;; Verse Block

(defun org-element-verse-block-parser ()
  "Parse a verse block.

Return a list whose car is `verse-block' and cdr is a plist
containing `:begin', `:end', `:hiddenp', `:raw-value', `:value'
and `:post-blank' keywords.

Assume point is at beginning or end of the block."
  (save-excursion
    (let* ((case-fold-search t)
	   (keywords (progn
		       (end-of-line)
		       (re-search-backward
			(concat "^[ \t]*#\\+begin_verse") nil t)
		       (org-element-collect-affiliated-keywords)))
	   (begin (car keywords))
	   (hidden (progn (forward-line) (org-truely-invisible-p)))
	   (raw-val (buffer-substring-no-properties
		     (point)
		     (progn
		       (re-search-forward (concat "^[ \t]*#\\+end_verse") nil t)
		       (point-at-bol))))
	   (pos-before-blank (progn (forward-line) (point)))
	   (end (progn (org-skip-whitespace)
		       (if (eobp) (point) (point-at-bol))))
	   (value (org-element-parse-secondary-string
		   (org-remove-indentation raw-val)
		   (cdr (assq 'verse-block org-element-string-restrictions)))))
      `(verse-block
	(:begin ,begin
		:end ,end
		:hiddenp ,hidden
		:raw-value ,raw-val
		:value ,value
		:post-blank ,(count-lines pos-before-blank end)
		,@(cadr keywords))))))

(defun org-element-verse-block-interpreter (verse-block contents)
  "Interpret VERSE-BLOCK element as Org syntax.
CONTENTS is nil."
  (format "#+begin_verse\n%s#+end_verse"
  (org-remove-indentation
  (org-element-get-property :raw-value verse-block))))


\f
;;; Objects

;; Unlike to elements, interstices can be found between objects.
;; That's why, along with the parser, successor functions are provided
;; for each object.  Some objects share the same successor
;; (i.e. `emphasis' and `verbatim' objects).

;; A successor must accept a single argument bounding the search.  It
;; will return either a cons cell whose car is the object's type, as
;; a symbol, and cdr the position of its next occurrence, or nil.

;; Successors follow the naming convention:
;; org-element-NAME-successor, where NAME is the name of the
;; successor, as defined in `org-element-all-successors'.

;; Some object types (i.e. `emphasis') are recursive.  Restrictions on
;; object types they can contain will be specified in
;; `org-element-object-restrictions'.

;; Adding a new type of object is simple.  Implement a successor,
;; a parser, and an interpreter for it, all following the naming
;; convention.  Register successor in `org-element-all-successors',
;; maybe tweak restrictions about it, and that's it.

;;;; Emphasis

(defun org-element-emphasis-parser ()
  "Parse text markup object at point.

Return a list whose car is `emphasis' and cdr is a plist with
`:marker', `:begin', `:end', `:contents-begin' and
`:contents-end' and `:post-blank' keywords.

Assume point is at the first emphasis marker."
  (save-excursion
    (unless (bolp) (backward-char 1))
    (looking-at org-emph-re)
    (let ((begin (match-beginning 2))
	  (marker (org-match-string-no-properties 3))
	  (contents-begin (match-beginning 4))
	  (contents-end (match-end 4))
	  (post-blank (progn (goto-char (match-end 2))
			     (skip-chars-forward " \t")))
	  (end (point)))
      `(emphasis
	(:marker ,marker
		 :begin ,begin
		 :end ,end
		 :contents-begin ,contents-begin
		 :contents-end ,contents-end
		 :post-blank ,post-blank)))))

(defun org-element-emphasis-interpreter (emphasis contents)
  "Interpret EMPHASIS object as Org syntax.
CONTENTS is the contents of the object."
  (let ((marker (org-element-get-property :marker emphasis)))
    (concat marker contents marker)))

(defun org-element-text-markup-successor (limit)
  "Search for the next emphasis or verbatim object.

LIMIT bounds the search.

Return value is a cons cell whose car is `emphasis' or
`verbatim' and cdr is beginning position."
  (save-excursion
    (unless (bolp) (backward-char))
    (when (re-search-forward org-emph-re limit t)
      (cons (if (nth 4 (assoc (match-string 3) org-emphasis-alist))
		'verbatim
	      'emphasis)
	    (match-beginning 2)))))

;;;; Entity

(defun org-element-entity-parser ()
  "Parse entity at point.

Return a list whose car is `entity' and cdr a plist with
`:begin', `:end', `:latex', `:latex-math-p', `:html', `:latin1',
`:utf-8', `:ascii', `:use-brackets-p' and `:post-blank' as
keywords.

Assume point is at the beginning of the entity."
  (save-excursion
    (looking-at "\\\\\\(frac[13][24]\\|[a-zA-Z]+\\)\\($\\|{}\\|[^[:alpha:]]\\)")
    (let* ((value (org-entity-get (match-string 1)))
	   (begin (match-beginning 0))
	   (bracketsp (string= (match-string 2) "{}"))
	   (post-blank (progn (goto-char (match-end 1))
			      (when bracketsp (forward-char 2))
			      (skip-chars-forward " \t")))
	   (end (point)))
      `(entity
	(:name ,(car value)
	       :latex ,(nth 1 value)
	       :latex-math-p ,(nth 2 value)
	       :html ,(nth 3 value)
	       :ascii ,(nth 4 value)
	       :latin1 ,(nth 5 value)
	       :utf-8 ,(nth 6 value)
	       :begin ,begin
	       :end ,end
	       :use-brackets-p ,bracketsp
	       :post-blank ,post-blank)))))

(defun org-element-entity-interpreter (entity contents)
  "Interpret ENTITY object as Org syntax.
CONTENTS is nil."
  (concat "\\"
	  (org-element-get-property :name entity)
	  (when (org-element-get-property :use-brackets-p entity) "{}")))

(defun org-element-latex-or-entity-successor (limit)
  "Search for the next latex-fragment or entity object.

LIMIT bounds the search.

Return value is a cons cell whose car is `entity' or
`latex-fragment' and cdr is beginning position."
  (save-excursion
    (let ((matchers (plist-get org-format-latex-options :matchers))
	  ;; ENTITY-RE matches both LaTeX commands and Org entities.
	  (entity-re
	   "\\\\\\(frac[13][24]\\|[a-zA-Z]+\\)\\($\\|[^[:alpha:]\n]\\)"))
      (when (re-search-forward
	     (concat (mapconcat (lambda (e) (nth 1 (assoc e org-latex-regexps)))
				matchers "\\|")
		     "\\|" entity-re)
	     limit t)
	(goto-char (match-beginning 0))
	(if (looking-at entity-re)
	    ;; Determine if it's a real entity or a LaTeX command.
	    (cons (if (org-entity-get (match-string 1)) 'entity 'latex-fragment)
		  (match-beginning 0))
	  ;; No entity nor command: point is at a LaTeX fragment.
	  ;; Determine its type to get the correct beginning position.
	  (cons 'latex-fragment
		(catch 'return
		  (mapc (lambda (e)
			  (when (looking-at (nth 1 (assoc e org-latex-regexps)))
			    (throw 'return
				   (match-beginning
				    (nth 2 (assoc e org-latex-regexps))))))
			matchers)
		  (point))))))))


;;;; Export Snippet

(defun org-element-export-snippet-parser ()
  "Parse export snippet at point.

Return a list whose car is `export-snippet' and cdr a plist with
`:begin', `:end', `:back-end', `:value' and `:post-blank' as
keywords.

Assume point is at the beginning of the snippet."
  (save-excursion
    (looking-at "@\\([-A-Za-z0-9]+\\){")
    (let* ((begin (point))
	   (back-end (org-match-string-no-properties 1))
	   (before-blank (progn (goto-char (scan-sexps (1- (match-end 0)) 1))))
	   (value (buffer-substring-no-properties
		   (match-end 0) (1- before-blank)))
	   (post-blank (skip-chars-forward " \t"))
	   (end (point)))
      `(export-snippet
	(:back-end ,back-end
		   :value ,value
		   :begin ,begin
		   :end ,end
		   :post-blank ,post-blank)))))

(defun org-element-export-snippet-interpreter (export-snippet contents)
  "Interpret EXPORT-SNIPPET object as Org syntax.
CONTENTS is nil."
  (format "@%s{%s}"
	  (org-element-get-property :back-end export-snippet)
	  (org-element-get-property :value export-snippet)))

(defun org-element-export-snippet-successor (limit)
  "Search for the next export-snippet object.

LIMIT bounds the search.

Return value is a cons cell whose car is `export-snippet' cdr is
its beginning position."
  (save-excursion
    (catch 'exit
      (while (re-search-forward "@[-A-Za-z0-9]+{" limit t)
	(when (let ((end (ignore-errors (scan-sexps (1- (point)) 1))))
		(and end (eq (char-before end) ?})))
	  (throw 'exit (cons 'export-snippet (match-beginning 0))))))))


;;;; Footnote Reference

(defun org-element-footnote-reference-parser ()
  "Parse footnote reference at point.

Return a list whose car is `footnote-reference' and cdr a plist
with `:label', `:type', `:definition', `:begin', `:end' and
`:post-blank' as keywords."
  (save-excursion
    (let* ((ref (org-footnote-at-reference-p))
	   (label (car ref))
	   (raw-def (nth 3 ref))
	   (inline-def
	    (and raw-def
		 (org-element-parse-secondary-string
		  raw-def
		  (cdr (assq 'footnote-reference
			     org-element-string-restrictions)))))
	   (type (if (nth 3 ref) 'inline 'standard))
	   (begin (nth 1 ref))
	   (post-blank (progn (goto-char (nth 2 ref))
			      (skip-chars-forward " \t")))
	   (end (point)))
      `(footnote-reference
	(:label ,label
		:type ,type
		:inline-definition ,inline-def
		:begin ,begin
		:end ,end
		:post-blank ,post-blank
		:raw-definition ,raw-def)))))

(defun org-element-footnote-reference-interpreter (footnote-reference contents)
  "Interpret FOOTNOTE-REFERENCE object as Org syntax.
CONTENTS is nil."
  (let ((label (or (org-element-get-property :label footnote-reference)
		   "fn:"))
	(def (let ((raw (org-element-get-property
			 :raw-definition footnote-reference)))
	       (if raw (concat ":" raw) ""))))
    (format "[%s]" (concat label def))))

(defun org-element-footnote-reference-successor (limit)
  "Search for the next footnote-reference object.

LIMIT bounds the search.

Return value is a cons cell whose car is `footnote-reference' and
cdr is beginning position."
  (let (fn-ref)
     (when (setq fn-ref (org-footnote-get-next-reference nil nil limit))
       (cons 'footnote-reference (nth 1 fn-ref)))))


;;;; Inline Babel Call

(defun org-element-inline-babel-call-parser ()
  "Parse inline babel call at point.

Return a list whose car is `inline-babel-call' and cdr a plist with
`:begin', `:end', `:info' and `:post-blank' as keywords.

Assume point is at the beginning of the babel call."
  (save-excursion
    (unless (bolp) (backward-char))
    (looking-at org-babel-inline-lob-one-liner-regexp)
    (let ((info (save-match-data (org-babel-lob-get-info)))
	  (begin (match-end 1))
	  (post-blank (progn (goto-char (match-end 0))
			     (skip-chars-forward " \t")))
	  (end (point)))
      `(inline-babel-call
	(:begin ,begin
		:end ,end
		:info ,info
		:post-blank ,post-blank)))))

(defun org-element-inline-babel-call-interpreter (inline-babel-call contents)
  "Interpret INLINE-BABEL-CALL object as Org syntax.
CONTENTS is nil."
  (let* ((babel-info (org-element-get-property :info inline-babel-call))
	 (main-source (car babel-info))
	 (post-options (nth 1 babel-info)))
    (concat "call_"
	    (if (string-match "\\[\\(\\[.*?\\]\\)\\]" main-source)
		;; Remove redundant square brackets.
		(replace-match
		 (match-string 1 main-source) nil nil main-source)
	      main-source)
	    (and post-options (format "[%s]" post-options)))))

(defun org-element-inline-babel-call-successor (limit)
  "Search for the next inline-babel-call object.

LIMIT bounds the search.

Return value is a cons cell whose car is `inline-babel-call' and
cdr is beginning position."
  (save-excursion
    ;; Use a simplified version of
    ;; org-babel-inline-lob-one-liner-regexp as regexp for more speed.
    (when (re-search-forward
	   "\\(?:babel\\|call\\)_\\([^()\n]+?\\)\\(\\[\\(.*\\)\\]\\|\\(\\)\\)(\\([^\n]*\\))\\(\\[\\(.*?\\)\\]\\)?"
	   limit t)
      (cons 'inline-babel-call (match-beginning 0)))))


;;;; Inline Src Block

(defun org-element-inline-src-block-parser ()
  "Parse inline source block at point.

Return a list whose car is `inline-src-block' and cdr a plist
with `:begin', `:end', `:language', `:value', `:parameters' and
`:post-blank' as keywords.

Assume point is at the beginning of the inline src block."
  (save-excursion
    (unless (bolp) (backward-char))
    (looking-at org-babel-inline-src-block-regexp)
    (let ((begin (match-beginning 1))
	  (language (org-match-string-no-properties 2))
	  (parameters (org-match-string-no-properties 4))
	  (value (org-match-string-no-properties 5))
	  (post-blank (progn (goto-char (match-end 0))
			     (skip-chars-forward " \t")))
	  (end (point)))
      `(inline-src-block
	(:language ,language
		   :value ,value
		   :parameters ,parameters
		   :begin ,begin
		   :end ,end
		   :post-blank ,post-blank)))))

(defun org-element-inline-src-block-interpreter (inline-src-block contents)
  "Interpret INLINE-SRC-BLOCK object as Org syntax.
CONTENTS is nil."
  (let ((language (org-element-get-property :language inline-src-block))
	(arguments (org-element-get-property :parameters inline-src-block))
	(body (org-element-get-property :value inline-src-block)))
    (format "src_%s%s{%s}"
	    language
	    (if arguments (format "[%s]" arguments) "")
	    body)))

(defun org-element-inline-src-block-successor (limit)
  "Search for the next inline-babel-call element.

LIMIT bounds the search.

Return value is a cons cell whose car is `inline-babel-call' and
cdr is beginning position."
  (save-excursion
    (when (re-search-forward org-babel-inline-src-block-regexp limit t)
      (cons 'inline-src-block (match-beginning 1)))))


;;;; Latex Fragment

(defun org-element-latex-fragment-parser ()
  "Parse latex fragment at point.

Return a list whose car is `latex-fragment' and cdr a plist with
`:value', `:begin', `:end', and `:post-blank' as keywords.

Assume point is at the beginning of the latex fragment."
  (save-excursion
    (let* ((begin (point))
	   (substring-match
	    (catch 'exit
	      (mapc (lambda (e)
		      (let ((latex-regexp (nth 1 (assoc e org-latex-regexps))))
			(when (or (looking-at latex-regexp)
				  (and (not (bobp))
				       (save-excursion
					 (backward-char)
					 (looking-at latex-regexp))))
			  (throw 'exit (nth 2 (assoc e org-latex-regexps))))))
		    (plist-get org-format-latex-options :matchers))
	      ;; None found: it's a macro.
	      (looking-at "\\\\[a-zA-Z]+\\*?\\(\\(\\[[^][\n{}]*\\]\\)\\|\\({[^{}\n]*}\\)\\)*")
	      0))
	   (value (match-string-no-properties substring-match))
	   (post-blank (progn (goto-char (match-end substring-match))
			      (skip-chars-forward " \t")))
	   (end (point)))
      `(latex-fragment
	(:value ,value
		:begin ,begin
		:end ,end
		:post-blank ,post-blank)))))

(defun org-element-latex-fragment-interpreter (latex-fragment contents)
  "Interpret LATEX-FRAGMENT object as Org syntax.
CONTENTS is nil."
  (org-element-get-property :value latex-fragment))

;;;; Line Break

(defun org-element-line-break-parser ()
  "Parse line break at point.

Return a list whose car is `line-break', and cdr a plist with
`:begin', `:end' and `:post-blank' keywords.

Assume point is at the beginning of the line break."
  (let ((begin (point))
	(end (save-excursion (forward-line) (point))))
    `(line-break (:begin ,begin :end ,end :post-blank 0))))

(defun org-element-line-break-interpreter (line-break contents)
  "Interpret LINE-BREAK object as Org syntax.
CONTENTS is nil."
  "\\\\\n")

(defun org-element-line-break-successor (limit)
  "Search for the next line-break object.

LIMIT bounds the search.

Return value is a cons cell whose car is `line-break' and cdr is
beginning position."
  (save-excursion
    (let ((beg (and (re-search-forward "[^\\\\]\\(\\\\\\\\\\)[ \t]*$" limit t)
		    (goto-char (match-beginning 1)))))
      ;; A line break can only happen on a non-empty line.
      (when (and beg (re-search-backward "\\S-" (point-at-bol) t))
	(cons 'line-break beg)))))


;;;; Link

(defun org-element-link-parser ()
  "Parse link at point.

Return a list whose car is `link' and cdr a plist with `:type',
`:path', `:raw-link', `:begin', `:end', `:contents-begin',
`:contents-end' and `:post-blank' as keywords.

Assume point is at the beginning of the link."
  (save-excursion
    (let ((begin (point))
	  end contents-begin contents-end link-end post-blank path type
	  raw-link link)
      (cond
       ;; Type 1: Text targeted from a radio target.
       ((and org-target-link-regexp (looking-at org-target-link-regexp))
	(setq type "radio"
	      link-end (match-end 0)
	      path (org-match-string-no-properties 0)))
       ;; Type 2: Standard link, i.e. [[http://orgmode.org][homepage]]
       ((looking-at org-bracket-link-regexp)
	(setq contents-begin (match-beginning 3)
	      contents-end (match-end 3)
	      link-end (match-end 0)
	      ;; RAW-LINK is the original link.
	      raw-link (org-match-string-no-properties 1)
	      link (org-link-expand-abbrev
		    (replace-regexp-in-string
		     " *\n *" " " (org-link-unescape raw-link) t t)))
	;; Determine TYPE of link and set PATH accordingly.
	(cond
	 ;; File type.
	 ((or (file-name-absolute-p link) (string-match "^\\.\\.?/" link))
	  (setq type "file" path link))
	 ;; Explicit type (http, irc, bbdb...).  See `org-link-types'.
	 ((string-match org-link-re-with-space3 link)
	  (setq type (match-string 1 link) path (match-string 2 link)))
	 ;; Ref type: PATH is the name of the target element.
	 ((string-match "^ref:\\(.*\\)" link)
	  (setq type "ref" path (org-trim (match-string 1 link))))
	 ;; Id type: PATH is the id.
	 ((string-match "^id:\\([-a-f0-9]+\\)" link)
	  (setq type "id" path (match-string 1 link)))
	 ;; Code-ref type: PATH is the name of the reference.
	 ((string-match "^(\\(.*\\))$" link)
	  (setq type "coderef" path (match-string 1 link)))
	 ;; Custom-id type: PATH is the name of the custom id.
	 ((= (aref link 0) ?#)
	  (setq type "custom-id" path (substring link 1)))
	 ;; Fuzzy type: Internal link either matches a target, an
	 ;; headline name or nothing. PATH is the target or headline's
	 ;; name.
	 (t (setq type "fuzzy" path link))))
       ;; Type 3: Plain link, i.e. http://orgmode.org
       ((looking-at org-plain-link-re)
	(setq raw-link (org-match-string-no-properties 0)
	      type (org-match-string-no-properties 1)
	      path (org-match-string-no-properties 2)
	      link-end (match-end 0)))
       ;; Type 4: Angular link, i.e. <http://orgmode.org>
       ((looking-at org-angle-link-re)
	(setq raw-link (buffer-substring-no-properties
			(match-beginning 1) (match-end 2))
	      type (org-match-string-no-properties 1)
	      path (org-match-string-no-properties 2)
	      link-end (match-end 0))))
      ;; In any case, deduce end point after trailing white space from
      ;; LINK-END variable.
      (setq post-blank (progn (goto-char link-end) (skip-chars-forward " \t"))
	    end (point))
      `(link
	(:type ,type
	       :path ,path
	       :raw-link ,(or raw-link path)
	       :begin ,begin
	       :end ,end
	       :contents-begin ,contents-begin
	       :contents-end ,contents-end
	       :post-blank ,post-blank)))))

(defun org-element-link-interpreter (link contents)
  "Interpret LINK object as Org syntax.
CONTENTS is the contents of the object."
  (let ((type (org-element-get-property :type link))
	(raw-link (org-element-get-property :raw-link link)))
    (cond
     ((string= type "radio") raw-link)
     (t (format "[[%s]%s]"
		raw-link
		(if (string= contents "") "" (format "[%s]" contents)))))))

(defun org-element-link-successor (limit)
  "Search for the next link object.

LIMIT bounds the search.

Return value is a cons cell whose car is `link' and cdr is
beginning position."
  (save-excursion
    (let ((link-regexp
	   (if org-target-link-regexp
	       (concat org-any-link-re "\\|" org-target-link-regexp)
	     org-any-link-re)))
      (when (re-search-forward link-regexp limit t)
	(cons 'link (match-beginning 0))))))


;;;; Macro

(defun org-element-macro-parser ()
  "Parse macro at point.

Return a list whose car is `macro' and cdr a plist with `:key',
`:args', `:begin', `:end', `:value' and `:post-blank' as
keywords.

Assume point is at the macro."
  (save-excursion
    (looking-at "{{{\\([a-zA-Z][-a-zA-Z0-9_]*\\)\\(([ \t\n]*\\([^\000]*?\\))\\)?}}}")
    (let ((begin (point))
	  (key (downcase (org-match-string-no-properties 1)))
	  (value (org-match-string-no-properties 0))
	  (post-blank (progn (goto-char (match-end 0))
			     (skip-chars-forward " \t")))
	  (end (point))
	  (args (let ((args (org-match-string-no-properties 3)) args2)
		  (when args
		    (setq args (org-split-string args ","))
		    (while args
		      (while (string-match "\\\\\\'" (car args))
			;; Repair bad splits.
			(setcar (cdr args) (concat (substring (car args) 0 -1)
						   "," (nth 1 args)))
			(pop args))
		      (push (pop args) args2))
		    (mapcar 'org-trim (nreverse args2))))))
      `(macro
	(:key ,key
	      :value ,value
	      :args ,args
	      :begin ,begin
	      :end ,end
	      :post-blank ,post-blank)))))

(defun org-element-macro-interpreter (macro contents)
  "Interpret MACRO object as Org syntax.
CONTENTS is nil."
  (org-element-get-property :value macro))

(defun org-element-macro-successor (limit)
  "Search for the next macro object.

LIMIT bounds the search.

Return value is cons cell whose car is `macro' and cdr is
beginning position."
  (save-excursion
    (when (re-search-forward
	   "{{{\\([a-zA-Z][-a-zA-Z0-9_]*\\)\\(([ \t\n]*\\([^\000]*?\\))\\)?}}}"
	   limit t)
      (cons 'macro (match-beginning 0)))))


;;;; Radio-target

(defun org-element-radio-target-parser ()
  "Parse radio target at point.

Return a list whose car is `radio-target' and cdr a plist with
`:begin', `:end', `:contents-begin', `:contents-end', `raw-value'
and `:post-blank' as keywords.

Assume point is at the radio target."
  (save-excursion
    (looking-at org-radio-target-regexp)
    (let ((begin (point))
	  (contents-begin (match-beginning 1))
	  (contents-end (match-end 1))
	  (raw-value (org-match-string-no-properties 1))
	  (post-blank (progn (goto-char (match-end 0))
			     (skip-chars-forward " \t")))
	  (end (point)))
      `(radio-target
	(:begin ,begin
		:end ,end
		:contents-begin ,contents-begin
		:contents-end ,contents-end
		:raw-value ,raw-value
		:post-blank ,post-blank)))))

(defun org-element-radio-target-interpreter (target contents)
  "Interpret TARGET object as Org syntax.
CONTENTS is the contents of the object."
  (concat "<<<" contents ">>>"))

(defun org-element-radio-target-successor (limit)
  "Search for the next radio-target object.

LIMIT bounds the search.

Return value is a cons cell whose car is `radio-target' and cdr
is beginning position."
  (save-excursion
     (when (re-search-forward org-radio-target-regexp limit t)
       (cons 'radio-target (match-beginning 0)))))


;;;; Statistics Cookie

(defun org-element-statistics-cookie-parser ()
  "Parse statistics cookie at point.

Return a list whose car is `statistics-cookie', and cdr a plist
with `:begin', `:end', `:value' and `:post-blank' keywords.

Assume point is at the beginning of the statistics-cookie."
  (save-excursion
    (looking-at "\\[[0-9]*\\(%\\|/[0-9]*\\)\\]")
    (let* ((begin (point))
	   (value (buffer-substring-no-properties
		   (match-beginning 0) (match-end 0)))
	   (post-blank (progn (goto-char (match-end 0))
			      (skip-chars-forward " \t")))
	   (end (point)))
      `(statistics-cookie
	(:begin ,begin
		:end ,end
		:value ,value
		:post-blank ,post-blank)))))

(defun org-element-statistics-cookie-interpreter (statistics-cookie contents)
  "Interpret STATISTICS-COOKIE object as Org syntax.
CONTENTS is nil."
  (org-element-get-property :value statistics-cookie))

(defun org-element-statistics-cookie-successor (limit)
  "Search for the next statistics cookie object.

LIMIT bounds the search.

Return value is a cons cell whose car is `statistics-cookie' and
cdr is beginning position."
  (save-excursion
    (when (re-search-forward "\\[[0-9]*\\(%\\|/[0-9]*\\)\\]" limit t)
      (cons 'statistics-cookie (match-beginning 0)))))


;;;; Subscript

(defun org-element-subscript-parser ()
  "Parse subscript at point.

Return a list whose car is `subscript' and cdr a plist with
`:begin', `:end', `:contents-begin', `:contents-end',
`:use-brackets-p' and `:post-blank' as keywords.

Assume point is at the underscore."
  (save-excursion
    (unless (bolp) (backward-char))
    (let ((bracketsp (if (looking-at org-match-substring-with-braces-regexp)
			 t
		       (not (looking-at org-match-substring-regexp))))
	  (begin (match-beginning 2))
	  (contents-begin (or (match-beginning 5)
			      (match-beginning 3)))
	  (contents-end (or (match-end 5) (match-end 3)))
	  (post-blank (progn (goto-char (match-end 0))
			     (skip-chars-forward " \t")))
	  (end (point)))
      `(subscript
	(:begin ,begin
		:end ,end
		:use-brackets-p ,bracketsp
		:contents-begin ,contents-begin
		:contents-end ,contents-end
		:post-blank ,post-blank)))))

(defun org-element-subscript-interpreter (subscript contents)
  "Interpret SUBSCRIPT object as Org syntax.
CONTENTS is the contents of the object."
  (format
   (if (org-element-get-property :use-brackets-p subscript) "_{%s}" "_%s")
   contents))

(defun org-element-sub/superscript-successor  (limit)
  "Search for the next sub/superscript object.

LIMIT bounds the search.

Return value is a cons cell whose car is either `subscript' or
`superscript' and cdr is beginning position."
  (save-excursion
    (when (re-search-forward org-match-substring-regexp limit t)
      (cons (if (string= (match-string 2) "_") 'subscript 'superscript)
	    (match-beginning 2)))))


;;;; Superscript

(defun org-element-superscript-parser ()
  "Parse superscript at point.

Return a list whose car is `superscript' and cdr a plist with
`:begin', `:end', `:contents-begin', `:contents-end',
`:use-brackets-p' and `:post-blank' as keywords.

Assume point is at the caret."
  (save-excursion
    (unless (bolp) (backward-char))
    (let ((bracketsp (if (looking-at org-match-substring-with-braces-regexp)
			 t
		       (not (looking-at org-match-substring-regexp))))
	  (begin (match-beginning 2))
	  (contents-begin (or (match-beginning 5)
			      (match-beginning 3)))
	  (contents-end (or (match-end 5) (match-end 3)))
	  (post-blank (progn (goto-char (match-end 0))
			     (skip-chars-forward " \t")))
	  (end (point)))
      `(superscript
	(:begin ,begin
		:end ,end
		:use-brackets-p ,bracketsp
		:contents-begin ,contents-begin
		:contents-end ,contents-end
		:post-blank ,post-blank)))))

(defun org-element-superscript-interpreter (superscript contents)
  "Interpret SUPERSCRIPT object as Org syntax.
CONTENTS is the contents of the object."
  (format
   (if (org-element-get-property :use-brackets-p superscript) "^{%s}" "^%s")
   contents))


;;;; Target

(defun org-element-target-parser ()
  "Parse target at point.

Return a list whose car is `target' and cdr a plist with
`:begin', `:end', `:contents-begin', `:contents-end', `raw-value'
and `:post-blank' as keywords.

Assume point is at the target."
  (save-excursion
    (looking-at org-target-regexp)
    (let ((begin (point))
	  (contents-begin (match-beginning 1))
	  (contents-end (match-end 1))
	  (raw-value (org-match-string-no-properties 1))
	  (post-blank (progn (goto-char (match-end 0))
			     (skip-chars-forward " \t")))
	  (end (point)))
      `(target
	(:begin ,begin
		:end ,end
		:contents-begin ,contents-begin
		:contents-end ,contents-end
		:raw-value ,raw-value
		:post-blank ,post-blank)))))

(defun org-element-target-interpreter (target contents)
  "Interpret TARGET object as Org syntax.
CONTENTS is the contents of target."
  (concat ""))

(defun org-element-target-successor (limit)
  "Search for the next target object.

LIMIT bounds the search.

Return value is a cons cell whose car is `target' and cdr is
beginning position."
  (save-excursion
     (when (re-search-forward org-target-regexp limit t)
       (cons 'target (match-beginning 0)))))


;;;; Time-stamp

(defun org-element-time-stamp-parser ()
  "Parse time stamp at point.

Return a list whose car is `time-stamp', and cdr a plist with
`:appt-type', `:type', `:begin', `:end', `:value' and
`:post-blank' keywords.

Assume point is at the beginning of the time-stamp."
  (save-excursion
    (let* ((appt-type (cond
		       ((looking-at (concat org-deadline-string " +"))
			(goto-char (match-end 0))
			'deadline)
		       ((looking-at (concat org-scheduled-string " +"))
			(goto-char (match-end 0))
			'scheduled)
		       ((looking-at (concat org-closed-string " +"))
			(goto-char (match-end 0))
			'closed)))
	   (begin (and appt-type (match-beginning 0)))
	   (type (cond
		  ((looking-at org-tsr-regexp)
		   (if (match-string 2) 'active-range 'active))
		  ((looking-at org-tsr-regexp-both)
		   (if (match-string 2) 'inactive-range 'inactive))
		  ((looking-at (concat
				"\\(<[0-9]+-[0-9]+-[0-9]+[^>\n]+?\\+[0-9]+[dwmy]>\\)"
				"\\|"
				"\\(<%%\\(([^>\n]+)\\)>\\)"))
		   'diary)))
	   (begin (or begin (match-beginning 0)))
	   (value (buffer-substring-no-properties
		   (match-beginning 0) (match-end 0)))
	   (post-blank (progn (goto-char (match-end 0))
			      (skip-chars-forward " \t")))
	   (end (point)))
      `(time-stamp
	(:appt-type ,appt-type
		    :type ,type
		    :value ,value
		    :begin ,begin
		    :end ,end
		    :post-blank ,post-blank)))))

(defun org-element-time-stamp-interpreter (time-stamp contents)
  "Interpret TIME-STAMP object as Org syntax.
CONTENTS is nil."
  (concat
   (case (org-element-get-property :appt-type time-stamp)
     (closed (concat org-closed-string " "))
     (deadline (concat org-deadline-string " "))
     (scheduled (concat org-scheduled-string " ")))
   (org-element-get-property :value time-stamp)))

(defun org-element-time-stamp-successor (limit)
  "Search for the next time-stamp object.

LIMIT bounds the search.

Return value is a cons cell whose car is `time-stamp' and cdr is
beginning position."
  (save-excursion
    (when (re-search-forward
	   (concat "\\(?:" org-scheduled-string " +\\|"
		   org-deadline-string " +\\|" org-closed-string " +\\)?"
		   org-ts-regexp-both
		   "\\|"
		   "\\(?:<[0-9]+-[0-9]+-[0-9]+[^>\n]+?\\+[0-9]+[dwmy]>\\)"
		   "\\|"
		   "\\(?:<%%\\(?:([^>\n]+)\\)>\\)")
	   limit t)
      (cons 'time-stamp (match-beginning 0)))))


;;;; Verbatim

(defun org-element-verbatim-parser ()
  "Parse verbatim object at point.

Return a list whose car is `verbatim' and cdr is a plist with
`:marker', `:begin', `:end' and `:post-blank' keywords.

Assume point is at the first verbatim marker."
  (save-excursion
    (unless (bolp) (backward-char 1))
    (looking-at org-emph-re)
    (let ((begin (match-beginning 2))
	  (marker (org-match-string-no-properties 3))
	  (value (org-match-string-no-properties 4))
	  (post-blank (progn (goto-char (match-end 2))
			     (skip-chars-forward " \t")))
	  (end (point)))
      `(verbatim
	(:marker ,marker
		 :begin ,begin
		 :end ,end
		 :value ,value
		 :post-blank ,post-blank)))))

(defun org-element-verbatim-interpreter (verbatim contents)
  "Interpret VERBATIM object as Org syntax.
CONTENTS is nil."
  (let ((marker (org-element-get-property :marker verbatim))
	(value (org-element-get-property :value verbatim)))
    (concat marker value marker)))


\f
;;; Definitions And Rules

;; Define elements, greater elements and specify recursive objects,
;; along with the affiliated keywords recognized.  Also set up
;; restrictions on recursive objects combinations.

;; These variables really act as a control center for the parsing
;; process.
(defconst org-element-paragraph-separate
  (concat "\f" "\\|" "^[ \t]*$" "\\|"
	  ;; Headlines and inlinetasks.
	  org-outline-regexp-bol "\\|"
	  ;; Comments, blocks (any type), keywords and babel calls.
	  "^[ \t]*#\\+" "\\|" "^#\\( \\|$\\)" "\\|"
	  ;; Lists.
	  (org-item-beginning-re) "\\|"
	  ;; Fixed-width, drawers (any type) and tables.
	  "^[ \t]*[:|]" "\\|"
	  ;; Footnote definitions.
	  org-footnote-definition-re "\\|"
	  ;; Horizontal rules.
	  "^[ \t]*-\\{5,\\}[ \t]*$" "\\|"
	  ;; LaTeX environments.
	  "^[ \t]*\\\\\\(begin\\|end\\)")
  "Regexp to separate paragraphs in an Org buffer.")

(defconst org-element-all-elements
  '(center-block comment comment-block drawer dynamic-block example-block
		 export-block fixed-width footnote-definition headline
		 horizontal-rule inlinetask item keyword latex-environment
		 babel-call paragraph plain-list property-drawer quote-block
		 quote-section section special-block src-block table
		 verse-block)
  "Complete list of elements.")

(defconst org-element-greater-elements
  '(center-block drawer dynamic-block footnote-definition headline inlinetask
		 item plain-list quote-block section special-block)
  "List of recursive element types aka Greater Elements.")

(defconst org-element-all-successors
  '(export-snippet footnote-reference inline-babel-call inline-src-block
		   latex-or-entity line-break link macro radio-target
		   statistics-cookie sub/superscript target text-markup
		   time-stamp)
  "Complete list of successors.")

(defconst org-element-object-successor-alist
  '((subscript . sub/superscript) (superscript . sub/superscript)
    (emphasis . text-markup) (verbatim . text-markup)
    (entity . latex-or-entity) (latex-fragment . latex-or-entity))
  "Alist of translations between object type and successor name.

Sharing the same successor comes handy when, for example, the
regexp matching one object can also match the other object.")

(defconst org-element-recursive-objects
  '(emphasis link macro subscript superscript target radio-target)
  "List of recursive object types.")

(defconst org-element-non-recursive-block-alist
  '(("ascii" . export-block)
    ("comment" . comment-block)
    ("docbook" . export-block)
    ("example" . example-block)
    ("html" . export-block)
    ("latex" . export-block)
    ("odt" . export-block)
    ("src" . src-block)
    ("verse" . verse-block))
  "Alist between non-recursive block name and their element type.")

(defconst org-element-affiliated-keywords
  '("attr_ascii" "attr_docbook" "attr_html" "attr_latex" "attr_odt" "caption"
    "data" "header" "headers" "label" "name" "plot" "resname" "result" "results"
    "source" "srcname" "tblname")
  "List of affiliated keywords as strings.")

(defconst org-element-keyword-translation-alist
  '(("data" . "name")  ("label" . "name") ("resname" . "name")
    ("source" . "name") ("srcname" . "name") ("tblname" . "name")
    ("result" . "results") ("headers" . "header"))
  "Alist of usual translations for keywords.
The key is the old name and the value the new one.  The property
holding their value will be named after the translated name.")

(defconst org-element-multiple-keywords
  '("attr_ascii" "attr_docbook" "attr_html" "attr_latex" "attr_odt" "header")
  "List of affiliated keywords that can occur more that once in an element.

Their value will be consed into a list of strings, which will be
returned as the value of the property.

This list is checked after translations have been applied.  See
`org-element-keyword-translation-alist'.")

(defconst org-element-parsed-keywords '("author" "caption" "title")
  "List of keywords whose value can be parsed.

Their value will be stored as a secondary string: a list of
strings and objects.

This list is checked after translations have been applied.  See
`org-element-keyword-translation-alist'.")

(defconst org-element-dual-keywords '("caption" "results")
  "List of keywords which can have a secondary value.

In Org syntax, they can be written with optional square brackets
before the colons.  For example, results keyword can be
associated to a hash value with the following:

  #+results[hash-string]: some-source

This list is checked after translations have been applied.  See
`org-element-keyword-translation-alist'.")

(defconst org-element-object-restrictions
  '((emphasis entity export-snippet inline-babel-call inline-src-block link
	      radio-target sub/superscript target text-markup time-stamp)
    (link entity export-snippet inline-babel-call inline-src-block
	  latex-fragment link sub/superscript text-markup)
    (macro macro)
    (radio-target entity export-snippet latex-fragment sub/superscript)
    (subscript entity export-snippet inline-babel-call inline-src-block
	       latex-fragment sub/superscript text-markup)
    (superscript entity export-snippet inline-babel-call inline-src-block
		 latex-fragment sub/superscript text-markup)
    (target entity export-snippet latex-fragment sub/superscript text-markup))
  "Alist of recursive objects restrictions.

CAR is a recursive object type and CDR is a list of successors
that will be called within an object of such type.

For example, in a `radio-target' object, one can only find
entities, export snippets, latex-fragments, subscript and
superscript.")

(defconst org-element-string-restrictions
  '((footnote-reference entity export-snippet inline-babel-call inline-src-block
			latex-fragment line-break link macro radio-target
			sub/superscript target text-markup time-stamp)
    (headline entity inline-babel-call inline-src-block latex-fragment link
	      macro radio-target statistics-cookie sub/superscript text-markup
	      time-stamp)
    (inlinetask entity inline-babel-call inline-src-block latex-fragment link
		macro radio-target sub/superscript text-markup time-stamp)
    (item entity inline-babel-call latex-fragment macro radio-target
	  sub/superscript target text-markup)
    (keyword entity latex-fragment macro sub/superscript text-markup)
    (table entity latex-fragment macro target text-markup)
    (verse-block entity footnote-reference inline-babel-call inline-src-block
		 latex-fragment line-break link macro radio-target
		 sub/superscript target text-markup time-stamp))
  "Alist of secondary strings restrictions.

When parsed, some elements have a secondary string which could
contain various objects (i.e. headline's name, or table's cells).
For association, CAR is the element type, and CDR a list of
successors that will be called in that secondary string.

Note: `keyword' secondary string type only applies to keywords
matching `org-element-parsed-keywords'.")

(defconst org-element-secondary-value-alist
  '((headline . :title)
    (inlinetask . :title)
    (item . :tag)
    (footnote-reference . :inline-definition)
    (verse-block . :value))
  "Alist between element types and location of secondary value.
Only elements with a secondary value available at parse time are
considered here.  This is used internally by `org-element-map',
which will look into the secondary strings of an element only if
its type is listed here.")


\f
;;; Accessors
;;
;; Provide two accessors: `org-element-get-property' and
;; `org-element-get-contents'.

(defun org-element-get-property (property element)
  "Extract the value from the PROPERTY of an ELEMENT."
  (plist-get (nth 1 element) property))

(defun org-element-get-contents (element)
  "Extract contents from an ELEMENT."
  (nthcdr 2 element))


\f
;; Obtaining The Smallest Element Containing Point

;; `org-element-at-point' is the core function of this section.  It
;; returns the Lisp representation of the element at point.  It uses
;; `org-element-guess-type' and `org-element-skip-keywords' as helper
;; functions.

;; When point is at an item, there is no automatic way to determine if
;; the function should return the `plain-list' element, or the
;; corresponding `item' element.  By default, `org-element-at-point'
;; works at the `plain-list' level.  But, by providing an optional
;; argument, one can make it switch to the `item' level.

(defconst org-element--affiliated-re
  (format "[ \t]*#\\+\\(%s\\):"
	  (mapconcat
	   (lambda (keyword)
	     (if (member keyword org-element-dual-keywords)
		 (format "\\(%s\\)\\(?:\\[\\(.*\\)\\]\\)?"
			 (regexp-quote keyword))
	       (regexp-quote keyword)))
	   org-element-affiliated-keywords "\\|"))
  "Regexp matching any affiliated keyword.

Keyword name is put in match group 1.  Moreover, if keyword
belongs to `org-element-dual-keywords', put the dual value in
match group 2.

Don't modify it, set `org-element--affiliated-keywords' instead.")

(defun org-element-at-point (&optional special structure)
  "Determine closest element around point.

Return value is a list \(TYPE PROPS\) where TYPE is the type of
the element and PROPS a plist of properties associated to the
element.

Possible types are defined in `org-element-all-elements'.

Optional argument SPECIAL, when non-nil, can be either `item' or
`section'.  The former allows to parse item wise instead of
plain-list wise, using STRUCTURE as the current list structure.
The latter will try to parse a section before anything else.

If STRUCTURE isn't provided but SPECIAL is set to `item', it will
be computed."
  (save-excursion
    (beginning-of-line)
    ;; Move before any blank line.
    (when (looking-at "[ \t]*$")
      (skip-chars-backward " \r\t\n")
      (beginning-of-line))
    (let ((case-fold-search t))
      ;; Check if point is at an affiliated keyword.  In that case,
      ;; try moving to the beginning of the associated element.  If
      ;; the keyword is orphaned, treat it as plain text.
      (when (looking-at org-element--affiliated-re)
	(let ((opoint (point)))
	  (while (looking-at org-element--affiliated-re) (forward-line))
	  (when (looking-at "[ \t]*$") (goto-char opoint))))
      (let ((type (org-element-guess-type (eq special 'section))))
	(cond
	 ;; Guessing element type on the current line is impossible:
	 ;; try to find the beginning of the current element to get
	 ;; more information.
	 ((not type)
	  (let ((search-origin (point))
		(opoint-in-item-p (org-in-item-p))
		(par-found-p
		 (progn
		   (end-of-line)
		   (re-search-backward org-element-paragraph-separate nil 'm))))
	    (cond
	     ;; Unable to find a paragraph delimiter above: we're at
	     ;; bob and looking at a paragraph.
	     ((not par-found-p) (org-element-paragraph-parser))
	     ;; Trying to find element's beginning set point back to
	     ;; its original position.  There's something peculiar on
	     ;; this line that prevents parsing, probably an
	     ;; ill-formed keyword or an undefined drawer name.  Parse
	     ;; it as plain text anyway.
	     ((< search-origin (point-at-eol)) (org-element-paragraph-parser))
	     ;; Original point wasn't in a list but previous paragraph
	     ;; is.  It means that either point was inside some block,
	     ;; or current list was ended without using a blank line.
	     ;; In the last case, paragraph really starts at list end.
	     ((let (item)
		(and (not opoint-in-item-p)
		     (not (looking-at "[ \t]*#\\+begin"))
		     (setq item (org-in-item-p))
		     (let ((struct (save-excursion (goto-char item)
						   (org-list-struct))))
		       (goto-char (org-list-get-bottom-point struct))
		       (org-skip-whitespace)
		       (beginning-of-line)
		       (org-element-paragraph-parser)))))
	     ((org-footnote-at-definition-p)
	      (org-element-footnote-definition-parser))
	     ((and opoint-in-item-p (org-at-item-p) (= opoint-in-item-p (point)))
	      (if (eq special 'item)
		  (org-element-item-parser (or structure (org-list-struct)))
		(org-element-plain-list-parser (or structure (org-list-struct)))))
	     ;; In any other case, the paragraph started the line
	     ;; below.
	     (t (forward-line) (org-element-paragraph-parser)))))
	 ((eq type 'plain-list)
	  (if (eq special 'item)
	      (org-element-item-parser (or structure (org-list-struct)))
	    (org-element-plain-list-parser (or structure (org-list-struct)))))
	 ;; Straightforward case: call the appropriate parser.
	 (t (funcall (intern (format "org-element-%s-parser" type)))))))))


;; It is obvious to tell if point is in most elements, either by
;; looking for a specific regexp in the current line, or by using
;; already implemented functions.  This is the goal of
;; `org-element-guess-type'.

(defconst org-element--element-block-types
  (mapcar 'car org-element-non-recursive-block-alist)
  "List of non-recursive block types, as strings.
Used internally by `org-element-guess-type'.  Do not modify it
directly, set `org-element-non-recursive-block-alist' instead.")

(defun org-element-guess-type (&optional section-mode)
  "Return the type of element at point, or nil if undetermined.

This function may move point to an appropriate position for
parsing.  Used internally by `org-element-at-point'.

When optional argument SECTION-MODE is non-nil, try to find if
point is in a section in priority."
  ;; Beware: Order matters for some cases in that function.
  (beginning-of-line)
  (let ((case-fold-search t))
    (cond
     ((org-with-limited-levels (org-at-heading-p)) 'headline)
     ((let ((headline (ignore-errors (nth 4 (org-heading-components)))))
	(and headline
	     (let (case-fold-search)
	       (string-match (format "^%s\\(?: \\|$\\)" org-quote-string)
			     headline))))
      ;; Move to section beginning.
      (org-back-to-heading t)
      (forward-line)
      (org-skip-whitespace)
      (beginning-of-line)
      'quote-section)
     ;; Any buffer position not at an headline or in a quote section
     ;; is inside a section, provided function is actively looking for
     ;; them.
     (section-mode 'section)
     ;; Non-recursive block.
     ((let ((type (org-in-block-p org-element--element-block-types)))
	(and type (cdr (assoc type org-element-non-recursive-block-alist)))))
     ((org-at-heading-p) 'inlinetask)
     ((org-between-regexps-p
       "^[ \t]*\\\\begin{" "^[ \t]*\\\\end{[^}]*}[ \t]*") 'latex-environment)
     ;; Property drawer.  Almost `org-at-property-p', but allow drawer
     ;; boundaries.
     ((org-with-wide-buffer
       (and (not (org-before-first-heading-p))
	    (let ((pblock (org-get-property-block)))
	      (and pblock
		   (<= (point) (cdr pblock))
		   (>= (point-at-eol) (1- (car pblock)))))))
      'property-drawer)
     ;; Recursive block. If the block isn't complete, parse the
     ;; current part as a paragraph.
     ((looking-at "[ \t]*#\\+\\(begin\\|end\\)_\\([-A-Za-z0-9]+\\)\\(?:$\\|\\s-\\)")
      (let ((type (downcase (match-string 2))))
	(cond
	 ((not (org-in-block-p (list type))) 'paragraph)
	 ((string= type "center") 'center-block)
	 ((string= type "quote") 'quote-block)
	 (t 'special-block))))
     ;; Regular drawers must be tested after property drawer as both
     ;; elements share the same ending regexp.
     ((or (looking-at org-drawer-regexp) (looking-at "[ \t]*:END:[ \t]*$"))
      (let ((completep (org-between-regexps-p
			org-drawer-regexp "^[ \t]*:END:[ \t]*$")))
	(if (not completep) 'paragraph
	  (goto-char (car completep)) 'drawer)))
     ((looking-at "[ \t]*:\\( \\|$\\)") 'fixed-width)
     ;; Babel calls must be tested before general keywords as they are
     ;; a subset of them.
     ((looking-at org-babel-block-lob-one-liner-regexp) 'babel-call)
     ((looking-at org-footnote-definition-re) 'footnote-definition)
     ((looking-at "[ \t]*#\\+\\([a-z]+\\(:?_[a-z]+\\)*\\):")
      (if (member (downcase (match-string 1)) org-element-affiliated-keywords)
	  'paragraph
	'keyword))
     ;; Dynamic block: simplify regexp used for match. If it isn't
     ;; complete, parse the current part as a paragraph.
     ((looking-at "[ \t]*#\\+\\(begin\\end\\):\\(?:\\s-\\|$\\)")
      (let ((completep (org-between-regexps-p
			"^[ \t]*#\\+begin:\\(?:\\s-\\|$\\)"
			"^[ \t]*#\\+end:\\(?:\\s-\\|$\\)")))
	(if (not completep) 'paragraph
	  (goto-char (car completep)) 'dynamic-block)))
     ((looking-at "\\(#\\|[ \t]*#\\+\\(?: \\|$\\)\\)") 'comment)
     ((looking-at "[ \t]*-\\{5,\\}[ \t]*$") 'horizontal-rule)
     ((org-at-table-p t) 'table)
     ((looking-at "[ \t]*#\\+tblfm:")
      (forward-line -1)
      ;; A TBLFM line separated from any table is just plain text.
      (if (org-at-table-p) 'table
	(forward-line) 'paragraph))
     ((looking-at (org-item-re)) 'plain-list))))

;; Most elements can have affiliated keywords.  When looking for an
;; element beginning, we want to move before them, as they belong to
;; that element, and, in the meantime, collect information they give
;; into appropriate properties.  Hence the following function.

;; Usage of optional arguments may not be obvious at first glance:

;; - TRANS-LIST is used to polish keywords names that have evolved
;;   during Org history.  In example, even though =result= and
;;   =results= coexist, we want to have them under the same =result=
;;   property.  It's also true for "srcname" and "name", where the
;;   latter seems to be preferred nowadays (thus the "name" property).

;; - CONSED allows to regroup multi-lines keywords under the same
;;   property, while preserving their own identity.  This is mostly
;;   used for "attr_latex" and al.

;; - PARSED prepares a keyword value for export.  This is useful for
;;   "caption".  Objects restrictions for such keywords are defined in
;;   `org-element-string-restrictions'.

;; - DUALS is used to take care of keywords accepting a main and an
;;   optional secondary values.  For example "results" has its
;;   source's name as the main value, and may have an hash string in
;;   optional square brackets as the secondary one.

;; A keyword may belong to more than one category.

(defun org-element-collect-affiliated-keywords (&optional key-re trans-list
							  consed parsed duals)
  "Collect affiliated keywords before point.

Optional argument KEY-RE is a regexp matching keywords, which
puts matched keyword in group 1.  It defaults to
`org-element--affiliated-re'.

TRANS-LIST is an alist where key is the keyword and value the
property name it should be translated to, without the colons.  It
defaults to `org-element-keyword-translation-alist'.

CONSED is a list of strings.  Any keyword belonging to that list
will have its value consed.  The check is done after keyword
translation.  It defaults to `org-element-multiple-keywords'.

PARSED is a list of strings.  Any keyword member of this list
will have its value parsed.  The check is done after keyword
translation.  If a keyword is a member of both CONSED and PARSED,
it's value will be a list of parsed strings.  It defaults to
`org-element-parsed-keywords'.

DUALS is a list of strings.  Any keyword member of this list can
have two parts: one mandatory and one optional.  Its value is
a cons cell whose car is the former, and the cdr the latter.  If
a keyword is a member of both PARSED and DUALS, both values will
be parsed.  It defaults to `org-element-dual-keywords'.

Return a list whose car is the position at the first of them and
cdr a plist of keywords and values."
  (save-excursion
    (let ((case-fold-search t)
	  (key-re (or key-re org-element--affiliated-re))
	  (trans-list (or trans-list org-element-keyword-translation-alist))
	  (consed (or consed org-element-multiple-keywords))
	  (parsed (or parsed org-element-parsed-keywords))
	  (duals (or duals org-element-dual-keywords))
	  ;; RESTRICT is the list of objects allowed in parsed
	  ;; keywords value.
	  (restrict (cdr (assq 'keyword org-element-string-restrictions)))
	  output)
      (unless (bobp)
	(while (and (not (bobp))
		    (progn (forward-line -1) (looking-at key-re)))
	  (let* ((raw-kwd (downcase (or (match-string 2) (match-string 1))))
		 ;; Apply translation to RAW-KWD.  From there, KWD is
		 ;; the official keyword.
		 (kwd (or (cdr (assoc raw-kwd trans-list)) raw-kwd))
		 ;; Find main value for any keyword.
		 (value
		  (save-match-data
		    (org-trim
		     (buffer-substring-no-properties
		      (match-end 0) (point-at-eol)))))
		 ;; If KWD is a dual keyword, find its secondary
		 ;; value.  Maybe parse it.
		 (dual-value
		  (and (member kwd duals)
		       (let ((sec (org-match-string-no-properties 3)))
			 (if (or (not sec) (not (member kwd parsed))) sec
			   (org-element-parse-secondary-string sec restrict)))))
		 ;; Attribute a property name to KWD.
		 (kwd-sym (and kwd (intern (concat ":" kwd)))))
	    ;; Now set final shape for VALUE.
	    (when (member kwd parsed)
	      (setq value (org-element-parse-secondary-string value restrict)))
	    (when (member kwd duals)
	      ;; VALUE is mandatory.  Set it to nil if there is none.
	      (setq value (and value (cons value dual-value))))
	    (when (member kwd consed)
	      (setq value (cons value (plist-get output kwd-sym))))
	    ;; Eventually store the new value in OUTPUT.
	    (setq output (plist-put output kwd-sym value))))
	(unless (looking-at key-re) (forward-line 1)))
      (list (point) output))))


\f
;;; The Org Parser

;; The two major functions here are `org-element-parse-buffer', which
;; parses Org syntax inside the current buffer, taking into account
;; region, narrowing, or even visibility if specified, and
;; `org-element-parse-secondary-string', which parses objects within
;; a given string.

;; The (almost) almighty `org-element-map' allows to apply a function
;; on elements or objects matching some type, and accumulate the
;; resulting values.  In an export situation, it also skips unneeded
;; parts of the parse tree, transparently walks into included files,
;; and maintain a list of local properties (i.e. those inherited from
;; parent headlines) for function's consumption.

(defun org-element-parse-buffer (&optional granularity visible-only)
  "Recursively parse the buffer and return structure.
If narrowing is in effect, only parse the visible part of the
buffer.

Optional argument GRANULARITY determines the depth of the
recursion.  It can be set to the following symbols:

`headline'          Only parse headlines.
`greater-element'   Don't recurse into greater elements.  Thus,
		    elements parsed are the top-level ones.
`element'           Parse everything but objects and plain text.
`object'            Parse the complete buffer (default).

When VISIBLE-ONLY is non-nil, don't parse contents of hidden
elements.

Assume buffer is in Org mode."
  (save-excursion
    (goto-char (point-min))
    (org-skip-whitespace)
    (nconc (list 'org-data nil)
	   (org-element-parse-elements
	    (point-at-bol) (point-max)
	    ;; Start is section mode so text before the first headline
	    ;; belongs to a section.
	    'section nil granularity visible-only nil))))

(defun org-element-parse-secondary-string (string restriction &optional buffer)
  "Recursively parse objects in STRING and return structure.

RESTRICTION, when non-nil, is a symbol limiting the object types
that will be looked after.

Optional argument BUFFER indicates the buffer from where the
secondary string was extracted.  It is used to determine where to
get extraneous information for an object \(i.e. when resolving
a link or looking for a footnote definition\).  It defaults to
the current buffer."
  (with-temp-buffer
    (insert string)
    (org-element-parse-objects (point-min) (point-max) nil restriction)))

(defun org-element-map (data types fun &optional info first-match)
  "Map a function on selected elements or objects.

DATA is the parsed tree, as returned by, i.e,
`org-element-parse-buffer'.  TYPES is a symbol or list of symbols
of elements or objects types.  FUN is the function called on the
matching element or object.  It must accept two arguments: the
element or object itself and a plist holding contextual
information.

When optional argument INFO is non-nil, it should be a plist
holding export options.  In that case, parts of the parse tree
not exportable according to that property list will be skipped
and files included through a keyword will be visited.

When optional argument FIRST-MATCH is non-nil, stop at the first
match for which FUN doesn't return nil, and return that value.

Nil values returned from FUN are ignored in the result."
  ;; Ensure TYPES is a list, even of one element.
  (unless (listp types) (setq types (list types)))
  ;; Recursion depth is determined by --CATEGORY.
  (let* ((--category
	  (cond
	   ((loop for type in types
		  always (memq type org-element-greater-elements))
	    'greater-elements)
	   ((loop for type in types
		  always (memq type org-element-all-elements))
	    'elements)
	   (t 'objects)))
	 ;; --RESTRICTS is a list of element types whose secondary
	 ;; string could possibly contain an object with a type among
	 ;; TYPES.
	 (--restricts
	  (and (eq --category 'objects)
	       (loop for el in org-element-secondary-value-alist
		     when
		     (loop for o in types
			   thereis
			   (memq o (cdr
				    (assq (car el)
					  org-element-string-restrictions))))
		     collect (car el))))
	 --walk-tree			; For byte-compiler
	 --acc
	 (--check-blob
	  (function
	   (lambda (--type types fun --blob --local)
	     ;; Check if TYPE is matching among TYPES.  If so, apply
	     ;; FUN to --BLOB and accumulate return value
	     ;; into --ACC.  --LOCAL is the communication channel.
	     ;; If --BLOB has a secondary string that can contain
	     ;; objects with their type amond TYPES, look into that
	     ;; string first.
	     (when (memq --type --restricts)
	       (funcall
		--walk-tree
		`(org-data
		  nil
		  ,@(org-element-get-property
		     (cdr (assq --type org-element-secondary-value-alist))
		     --blob))
		--local))
	     (when (memq --type types)
	       (let ((result (funcall fun --blob --local)))
		 (cond ((not result))
		       (first-match (throw 'first-match result))
		       (t (push result --acc))))))))
	 (--walk-tree
	  (function
	   (lambda (--data --local)
	     ;; Recursively walk DATA.  --LOCAL, if non-nil, is
	     ;; a plist holding contextual information.
	     (mapc
	      (lambda (--blob)
		(let ((--type (if (stringp --blob) 'plain-text (car --blob))))
		  ;; Determine if a recursion into --BLOB is
		  ;; possible and allowed.
		  (cond
		   ;; Element or object not exportable.
		   ((and info (org-export-skip-p --blob info)))
		   ;; Archived headline: Maybe apply FUN on it, but
		   ;; skip contents.
		   ((and info
			 (eq --type 'headline)
			 (eq (plist-get info :with-archived-trees) 'headline)
			 (org-element-get-property :archivedp --blob))
		    (funcall --check-blob --type types fun --blob --local))
		   ;; Limiting recursion to greater elements, and --BLOB
		   ;; isn't one.
		   ((and (eq --category 'greater-elements)
			 (not (memq --type org-element-greater-elements)))
		    (funcall --check-blob --type types fun --blob --local))
		   ;; Limiting recursion to elements, and --BLOB only
		   ;; contains objects.
		   ((and (eq --category 'elements) (eq --type 'paragraph)))
		   ;; No limitation on recursion, but --BLOB hasn't
		   ;; got a recursive type.
		   ((and (eq --category 'objects)
			 (not (or (eq --type 'paragraph)
				  (memq --type org-element-greater-elements)
				  (memq --type org-element-recursive-objects))))
		    (funcall --check-blob --type types fun --blob --local))
		   ;; Recursion is possible and allowed: Update local
		   ;; information and move into --BLOB.
		   (t (funcall --check-blob --type types fun --blob --local)
		      (funcall
		       --walk-tree --blob
		       (org-combine-plists
			--local
			`(:genealogy
			  ,(cons --blob (plist-get --local :genealogy)))))))))
	      (org-element-get-contents --data))))))
    (catch 'first-match
      (funcall --walk-tree data info)
      ;; Return value in a proper order.
      (reverse --acc))))

;; The following functions are internal parts of the parser.

;; The first one, `org-element-parse-elements' acts at the element's
;; level.  As point is always at the beginning of an element during
;; parsing, it doesn't have to rely on `org-element-at-point'.
;; Instead, it calls a more restrictive, though way quicker,
;; alternative: `org-element-current-element'.  That function
;; internally uses `org-element--element-block-re' for quick access to
;; a common regexp.

;; The second one, `org-element-parse-objects' applies on all objects
;; of a paragraph or a secondary string.  It uses
;; `org-element-get-candidates' to optimize the search of the next
;; object in the buffer.

;; More precisely, that function looks for every allowed object type
;; first.  Then, it discards failed searches, keeps further matches,
;; and searches again types matched behind point, for subsequent
;; calls.  Thus, searching for a given type fails only once, and every
;; object is searched only once at top level (but sometimes more for
;; nested types).

(defun org-element-parse-elements
  (beg end special structure granularity visible-only acc)
  "Parse elements between BEG and END positions.

SPECIAL prioritize some elements over the others.  It can set to
`quote-section', `section' or `item', which will focus search,
respectively, on quote sections, sections and items.  Moreover,
when value is `item', STRUCTURE will be used as the current list
structure.

GRANULARITY determines the depth of the recursion.  It can be set
to the following symbols:

`headline'          Only parse headlines.
`greater-element'   Don't recurse into greater elements.  Thus,
		    elements parsed are the top-level ones.
`element'           Parse everything but objects and plain text.
`object' or nil     Parse the complete buffer.

When VISIBLE-ONLY is non-nil, don't parse contents of hidden
elements.

Elements are accumulated into ACC."
  (save-excursion
    (save-restriction
      (narrow-to-region beg end)
      (goto-char beg)
    ;; When parsing only headlines, skip any text before first one.
    (when (and (eq granularity 'headline) (not (org-at-heading-p)))
      (org-with-limited-levels (outline-next-heading)))
    ;; Main loop start.
    (while (not (eobp))
      (push
       ;; 1. Item mode is active: point must be at an item.  Parse it
       ;;    directly, skipping `org-element-current-element'.
       (if (eq special 'item)
	   (let ((element (org-element-item-parser structure)))
	     (goto-char (org-element-get-property :end element))
	     (org-element-parse-elements
	      (org-element-get-property :contents-begin element)
	      (org-element-get-property :contents-end element)
	      nil structure granularity visible-only (reverse element)))
	 ;; 2. When ITEM is nil, find current element's type and parse
	 ;;    it accordingly to its category.
	 (let ((element (org-element-current-element special structure)))
	   (goto-char (org-element-get-property :end element))
	   (cond
	    ;; Case 1.  ELEMENT is a paragraph.  Parse objects inside,
	    ;; if GRANULARITY allows it.
	    ((and (eq (car element) 'paragraph)
		  (or (not granularity) (eq granularity 'object)))
	     (org-element-parse-objects
	      (org-element-get-property :contents-begin element)
	      (org-element-get-property :contents-end element)
	      (reverse element) nil))
	    ;; Case 2.  ELEMENT is recursive: parse it between
	    ;; `contents-begin' and `contents-end'.  Make sure
	    ;; GRANULARITY allows the recursion, or ELEMENT is an
	    ;; headline, in which case going inside is mandatory, in
	    ;; order to get sub-level headings.  If VISIBLE-ONLY is
	    ;; true and element is hidden, do not recurse into it.
	    ((and (memq (car element) org-element-greater-elements)
		  (or (not granularity)
		      (memq granularity '(element object))
		      (eq (car element) 'headline))
		  (not (and visible-only
			    (org-element-get-property :hiddenp element))))
	     (org-element-parse-elements
	      (org-element-get-property :contents-begin element)
	      (org-element-get-property :contents-end element)
	      ;; At a plain list, switch to item mode.  At an
	      ;; headline, switch to section mode.  Any other
	      ;; element turns off special modes.
	      (case (car element)
		(plain-list 'item)
		(headline (if (org-element-get-property :quotedp element)
			      'quote-section
			    'section)))
	      (org-element-get-property :structure element)
	      granularity visible-only (reverse element)))
	    ;; Case 3.  Else, just accumulate ELEMENT.
	    (t element))))
       acc)))
    ;; Return result.
    (nreverse acc)))

(defconst org-element--element-block-re
  (format "[ \t]*#\\+begin_\\(%s\\)\\(?: \\|$\\)"
          (mapconcat
           'regexp-quote
           (mapcar 'car org-element-non-recursive-block-alist) "\\|"))
  "Regexp matching the beginning of a non-recursive block type.
Used internally by `org-element-current-element'.  Do not modify
it directly, set `org-element-recursive-block-alist' instead.")

(defun org-element-current-element (&optional special structure)
  "Parse the element at point.

Return value is a list \(TYPE PROPS\) where TYPE is the type of
the element and PROPS a plist of properties associated to the
element.

Possible types are defined in `org-element-all-elements'.

Optional argument SPECIAL, when non-nil, can be either `item',
`section' or `quote-section'.  `item' allows to parse item wise
instead of plain-list wise, using STRUCTURE as the current list
structure.  `section' (resp. `quote-section') will try to parse
a section (resp. a quote section) before anything else.

If STRUCTURE isn't provided but SPECIAL is set to `item', it will
be computed.

Unlike to `org-element-at-point', this function assumes point is
always at the beginning of the element it has to parse.  As such,
it is quicker than its counterpart and always accurate, albeit
more restrictive."
  (save-excursion
    (beginning-of-line)
    ;; If point is at an affiliated keyword, try moving to the
    ;; beginning of the associated element.  If none is found, the
    ;; keyword is orphaned and will be treated as plain text.
    (when (looking-at org-element--affiliated-re)
      (let ((opoint (point)))
        (while (looking-at org-element--affiliated-re) (forward-line))
        (when (looking-at "[ \t]*$") (goto-char opoint))))
    (let ((case-fold-search t))
      (cond
       ;; Headline.
       ((org-with-limited-levels (org-at-heading-p))
        (org-element-headline-parser))
       ;; Quote section.
       ((eq special 'quote-section) (org-element-quote-section-parser))
       ;; Section.
       ((eq special 'section) (org-element-section-parser))
       ;; Non-recursive block.
       ((when (looking-at org-element--element-block-re)
          (let ((type (downcase (match-string 1))))
            (if (save-excursion
                  (re-search-forward
                   (format "[ \t]*#\\+end_%s\\(?: \\|$\\)" type) nil t))
                ;; Build appropriate parser.
                (funcall
                 (intern
                  (format "org-element-%s-parser"
                          (cdr (assoc type
                                      org-element-non-recursive-block-alist)))))
              (org-element-paragraph-parser)))))
       ;; Inlinetask.
       ((org-at-heading-p) (org-element-inlinetask-parser))
       ;; LaTeX Environment or paragraph if incomplete.
       ((looking-at "^[ \t]*\\\\begin{")
        (if (save-excursion
              (re-search-forward "^[ \t]*\\\\end{[^}]*}[ \t]*" nil t))
            (org-element-latex-environment-parser)
          (org-element-paragraph-parser)))
       ;; Property drawer.
       ((looking-at org-property-start-re)
        (if (save-excursion (re-search-forward org-property-end-re nil t))
            (org-element-property-drawer-parser)
          (org-element-paragraph-parser)))
       ;; Recursive block, or paragraph if incomplete.
       ((looking-at "[ \t]*#\\+begin_\\([-A-Za-z0-9]+\\)\\(?: \\|$\\)")
        (let ((type (downcase (match-string 1))))
          (cond
           ((not (save-excursion
                   (re-search-forward
                    (format "[ \t]*#\\+end_%s\\(?: \\|$\\)" type) nil t)))
            (org-element-paragraph-parser))
           ((string= type "center") (org-element-center-block-parser))
           ((string= type "quote") (org-element-quote-block-parser))
           (t (org-element-special-block-parser)))))
       ;; Drawer.
       ((looking-at org-drawer-regexp)
        (if (save-excursion (re-search-forward "^[ \t]*:END:[ \t]*$" nil t))
            (org-element-drawer-parser)
          (org-element-paragraph-parser)))
       ((looking-at "[ \t]*:\\( \\|$\\)") (org-element-fixed-width-parser))
       ;; Babel call.
       ((looking-at org-babel-block-lob-one-liner-regexp)
        (org-element-babel-call-parser))
       ;; Keyword, or paragraph if at an affiliated keyword.
       ((looking-at "[ \t]*#\\+\\([a-z]+\\(:?_[a-z]+\\)*\\):")
        (let ((key (downcase (match-string 1))))
          (if (or (string= key "tblfm")
                  (member key org-element-affiliated-keywords))
              (org-element-paragraph-parser)
            (org-element-keyword-parser))))
       ;; Footnote definition.
       ((looking-at org-footnote-definition-re)
        (org-element-footnote-definition-parser))
       ;; Dynamic block or paragraph if incomplete.
       ((looking-at "[ \t]*#\\+begin:\\(?: \\|$\\)")
        (if (save-excursion
              (re-search-forward "^[ \t]*#\\+end:\\(?: \\|$\\)" nil t))
            (org-element-dynamic-block-parser)
          (org-element-paragraph-parser)))
       ;; Comment.
       ((looking-at "\\(#\\|[ \t]*#\\+\\(?: \\|$\\)\\)")
	(org-element-comment-parser))
       ;; Horizontal rule.
       ((looking-at "[ \t]*-\\{5,\\}[ \t]*$")
        (org-element-horizontal-rule-parser))
       ;; Table.
       ((org-at-table-p t) (org-element-table-parser))
       ;; List or item.
       ((looking-at (org-item-re))
        (if (eq special 'item)
            (org-element-item-parser (or structure (org-list-struct)))
          (org-element-plain-list-parser (or structure (org-list-struct)))))
       ;; Default element: Paragraph.
       (t (org-element-paragraph-parser))))))

(defun org-element-parse-objects (beg end acc restriction)
  "Parse objects between BEG and END and return recursive structure.

Objects are accumulated in ACC.

RESTRICTION, when non-nil, is a list of object types which are
allowed in the current object."
  (let ((get-next-object
	 (function
	  (lambda (cand)
	    ;; Return the parsing function associated to the nearest
	    ;; object among list of candidates CAND.
	    (let ((pos (apply #'min (mapcar #'cdr cand))))
	      (save-excursion
		(goto-char pos)
		(funcall
		 (intern
		  (format "org-element-%s-parser" (car (rassq pos cand))))))))))
	next-object candidates)
    (save-excursion
      (goto-char beg)
      (while (setq candidates (org-element-get-next-object-candidates
			       end restriction candidates))
	(setq next-object (funcall get-next-object candidates))
	;; 1. Text before any object.  Untabify it.
	(let ((obj-beg (org-element-get-property :begin next-object)))
	  (unless (= (point) obj-beg)
	    (push (replace-regexp-in-string
		   "\t" (make-string tab-width ? )
		   (buffer-substring-no-properties (point) obj-beg))
		  acc)))
	;; 2. Object...
	(let ((obj-end (org-element-get-property :end next-object))
	      (cont-beg (org-element-get-property :contents-begin next-object)))
	  (push (if (and (memq (car next-object) org-element-recursive-objects)
			 cont-beg)
		    ;; ... recursive.  The CONT-BEG check is for
		    ;; links, as some of them might not be recursive
		    ;; (i.e. plain links).
		    (save-restriction
		      (narrow-to-region
		       cont-beg
		       (org-element-get-property :contents-end next-object))
		      (org-element-parse-objects
		       (point-min) (point-max) (reverse next-object)
		       ;; Restrict allowed objects.  This is the
		       ;; intersection of current restriction and next
		       ;; object's restriction.
		       (let ((new-restr
			      (cdr (assq (car next-object)
					 org-element-object-restrictions))))
			 (if (not restriction) new-restr
			   (delq nil (mapcar
				      (lambda (e) (and (memq e restriction) e))
				      new-restr))))))
		  ;; ... not recursive.
		  next-object)
		acc)
	  (goto-char obj-end)))
      ;; 3. Text after last object.  Untabify it.
      (unless (= (point) end)
	(push (replace-regexp-in-string
	       "\t" (make-string tab-width ? )
	       (buffer-substring-no-properties (point) end))
	      acc))
      ;; Result.
      (nreverse acc))))

(defun org-element-get-next-object-candidates (limit restriction objects)
  "Return an alist of candidates for the next object.

LIMIT bounds the search, and RESTRICTION, when non-nil, bounds
the possible object types.

Return value is an alist whose car is position and cdr the object
type, as a string.  There is an association for the closest
object of each type within RESTRICTION when non-nil, or for every
type otherwise.

OBJECTS is the previous candidates alist."
  (let ((restriction (or restriction org-element-all-successors))
	next-candidates types-to-search)
    ;; If no previous result, search every object type in RESTRICTION.
    ;; Otherwise, keep potential candidates (old objects located after
    ;; point) and ask to search again those which had matched before.
    (if (not objects) (setq types-to-search restriction)
      (mapc (lambda (obj)
	      (if (< (cdr obj) (point)) (push (car obj) types-to-search)
		(push obj next-candidates)))
	    objects))
    ;; Call the appropriate "get-next" function for each type to
    ;; search and accumulate matches.
    (mapc
     (lambda (type)
       (let* ((successor-fun
	       (intern
		(format "org-element-%s-successor"
			(or (cdr (assq type org-element-object-successor-alist))
			    type))))
	      (obj (funcall successor-fun limit)))
	 (and obj (push obj next-candidates))))
     types-to-search)
    ;; Return alist.
    next-candidates))


\f
;;; Towards A Bijective Process

;; The parse tree obtained with `org-element-parse-buffer' is really
;; a snapshot of the corresponding Org buffer.  Therefore, it can be
;; interpreted and expanded into a string with canonical Org
;; syntax. Hence `org-element-interpret-data'.
;;
;; Data parsed from secondary strings, whose shape is slightly
;; different than the standard parse tree, is expanded with the
;; equivalent function `org-element-interpret-secondary'.
;;
;; Both functions rely internally on
;; `org-element-interpret--affiliated-keywords'.

(defun org-element-interpret-data (data &optional genealogy previous)
  "Interpret a parse tree representing Org data.

DATA is the parse tree to interpret.

Optional arguments GENEALOGY and PREVIOUS are used for recursive
calls:
GENEALOGY is the list of its parents types.
PREVIOUS is the type of the element or object at the same level
interpreted before.

Return Org syntax as a string."
  (mapconcat
   (lambda (blob)
     ;; BLOB can be an element, an object, a string, or nil.
     (cond
      ((not blob) nil)
      ((equal blob "") nil)
      ((stringp blob) blob)
      (t
       (let* ((type (car blob))
	      (interpreter
	       (if (eq type 'org-data) 'identity
		 (intern (format "org-element-%s-interpreter" type))))
	      (contents
	       (cond
		;; Full Org document.
		((eq type 'org-data)
		 (org-element-interpret-data blob genealogy previous))
		;; Recursive objects.
		((memq type org-element-recursive-objects)
		 (org-element-interpret-data
		  blob (cons type genealogy) nil))
		;; Recursive elements.
		((memq type org-element-greater-elements)
		 (org-element-normalize-string
		  (org-element-interpret-data
		   blob (cons type genealogy) nil)))
		;; Paragraphs.
		((eq type 'paragraph)
		 (let ((paragraph
			(org-element-normalize-contents
			 blob
			 ;; When normalizing contents of an item,
			 ;; ignore first line's indentation.
			 (and (not previous)
			      (memq (car genealogy)
				    '(footnote-definiton item))))))
		   (org-element-interpret-data
		    paragraph (cons type genealogy) nil)))))
	      (results (funcall interpreter blob contents)))
	 ;; Update PREVIOUS.
	 (setq previous type)
	 ;; Build white spaces.
	 (cond
	  ((eq type 'org-data) results)
	  ((memq type org-element-all-elements)
	   (concat
	    (org-element-interpret--affiliated-keywords blob)
	    (org-element-normalize-string results)
	    (make-string (org-element-get-property :post-blank blob) 10)))
	  (t (concat
	      results
	      (make-string
	       (org-element-get-property :post-blank blob) 32))))))))
   (org-element-get-contents data) ""))

(defun org-element-interpret-secondary (secondary)
  "Interpret SECONDARY string as Org syntax.

SECONDARY-STRING is a nested list as returned by
`org-element-parse-secondary-string'.

Return interpreted string."
  ;; Make SECONDARY acceptable for `org-element-interpret-data'.
  (let ((s (if (listp secondary) secondary (list secondary))))
    (org-element-interpret-data `(org-data nil ,@s) nil nil)))

;; Both functions internally use `org-element--affiliated-keywords'.

(defun org-element-interpret--affiliated-keywords (element)
  "Return ELEMENT's affiliated keywords as Org syntax.
If there is no affiliated keyword, return the empty string."
  (let ((keyword-to-org
	 (function
	  (lambda (key value)
	    (let (dual)
	      (when (member key org-element-dual-keywords)
		(setq dual (cdr value) value (car value)))
	      (concat "#+" key (and dual (format "[%s]" dual)) ": "
		      (if (member key org-element-parsed-keywords)
			  (org-element-interpret-secondary value)
			value)
		      "\n"))))))
    (mapconcat
     (lambda (key)
       (let ((value (org-element-get-property (intern (concat ":" key)) element)))
	 (when value
	   (if (member key org-element-multiple-keywords)
	       (mapconcat (lambda (line)
			    (funcall keyword-to-org key line))
			  value "")
	     (funcall keyword-to-org key value)))))
     ;; Remove translated keywords.
     (delq nil
	   (mapcar
	    (lambda (key)
	      (and (not (assoc key org-element-keyword-translation-alist)) key))
	    org-element-affiliated-keywords))
     "")))

;; Because interpretation of the parse tree must return the same
;; number of blank lines between elements and the same number of white
;; space after objects, some special care must be given to white
;; spaces.
;;
;; The first function, `org-element-normalize-string', ensures any
;; string different from the empty string will end with a single
;; newline character.
;;
;; The second function, `org-element-normalize-contents', removes
;; global indentation from the contents of the current element.

(defun org-element-normalize-string (s)
  "Ensure string S ends with a single newline character.

If S isn't a string return it unchanged.  If S is the empty
string, return it.  Otherwise, return a new string with a single
newline character at its end."
  (cond
   ((not (stringp s)) s)
   ((string= "" s) "")
   (t (and (string-match "\\(\n[ \t]*\\)*\\'" s)
	  (replace-match "\n" nil nil s)))))

(defun org-element-normalize-contents (element &optional ignore-first)
  "Normalize plain text in ELEMENT's contents.

ELEMENT must only contain plain text and objects.

The following changes are applied to plain text:
  - Remove global indentation, preserving relative one.
  - Untabify it.

If optional argument IGNORE-FIRST is non-nil, ignore first line's
indentation to compute maximal common indentation.

Return the normalized element."
  (nconc
   (list (car element) (nth 1 element))
   (let ((contents (org-element-get-contents element)))
     (if (not (or ignore-first (stringp (car contents)))) contents
       (catch 'exit
	 ;; 1. Get maximal common indentation (MCI) among each string
	 ;;    in CONTENTS.
	 (let* ((ind-list (unless ignore-first
			    (list (org-get-string-indentation (car contents)))))
		(contents
		 (mapcar
		  (lambda (object)
		    (if (not (stringp object)) object
		      (let ((start 0))
			(while (string-match "\n\\( *\\)" object start)
			  (setq start (match-end 0))
			  (push (length (match-string 1 object)) ind-list))
			object)))
		  contents))
		(mci (if ind-list (apply 'min ind-list)
		       (throw 'exit contents))))
	   ;; 2. Remove that indentation from CONTENTS.  First string
	   ;;    must be treated differently because it's the only one
	   ;;    whose indentation doesn't happen after a newline
	   ;;    character.
	   (let ((first-obj (car contents)))
	     (unless (or (not (stringp first-obj)) ignore-first)
	       (setq contents
		     (cons (replace-regexp-in-string
			    (format "\\` \\{%d\\}" mci) "" first-obj)
			   (cdr contents)))))
	   (mapcar (lambda (object)
		     (if (not (stringp object)) object
		       (replace-regexp-in-string
			(format "\n \\{%d\\}" mci) "\n" object)))
		   contents)))))))


\f
;;; The Toolbox

;; Once the structure of an Org file is well understood, it's easy to
;; implement some replacements for `forward-paragraph'
;; `backward-paragraph', namely `org-element-forward' and
;; `org-element-backward'.

;; Also, `org-transpose-elements' mimics the behaviour of
;; `transpose-words', at the element's level, whereas
;; `org-element-drag-forward', `org-element-drag-backward', and
;; `org-element-up' generalize, respectively, functions
;; `org-subtree-down', `org-subtree-up' and `outline-up-heading'.

;; `org-element-unindent-buffer' will, as its name almost suggests,
;; smartly remove global indentation from buffer, making it possible
;; to use Org indent mode on a file created with hard indentation.

;; `org-element-nested-p' and `org-element-swap-A-B' are used
;; internally by some of the previously cited tools.

(defsubst org-element-nested-p (elem-A elem-B)
  "Non-nil when elements ELEM-A and ELEM-B are nested."
  (let ((beg-A (org-element-get-property :begin elem-A))
	(beg-B (org-element-get-property :begin elem-B))
	(end-A (org-element-get-property :end elem-A))
	(end-B (org-element-get-property :end elem-B)))
    (or (and (>= beg-A beg-B) (<= end-A end-B))
	(and (>= beg-B beg-A) (<= end-B end-A)))))

(defun org-element-swap-A-B (elem-A elem-B)
  "Swap elements ELEM-A and ELEM-B.

Leave point at the end of ELEM-A.

Assume ELEM-A is before ELEM-B and that they are not nested."
  (goto-char (org-element-get-property :begin elem-A))
  (let* ((beg-B (org-element-get-property :begin elem-B))
	 (end-B-no-blank (save-excursion
			     (goto-char (org-element-get-property :end elem-B))
			     (skip-chars-backward " \r\t\n")
			     (forward-line)
			     (point)))
	 (beg-A (org-element-get-property :begin elem-A))
	 (end-A-no-blank (save-excursion
			   (goto-char (org-element-get-property :end elem-A))
			   (skip-chars-backward " \r\t\n")
			   (forward-line)
			   (point)))
	 (body-A (buffer-substring beg-A end-A-no-blank))
	 (body-B (buffer-substring beg-B end-B-no-blank))
	 (between-A-B (buffer-substring end-A-no-blank beg-B)))
    (delete-region beg-A end-B-no-blank)
    (insert body-B between-A-B body-A)
    (goto-char (org-element-get-property :end elem-B))))

(defun org-element-backward ()
  "Move backward by one element."
  (interactive)
  (let* ((opoint (point))
	 (element (org-element-at-point))
	 (start-el-beg (org-element-get-property :begin element)))
    ;; At an headline. The previous element is the previous sibling,
    ;; or the parent if any.
    (cond
     ;; Already at the beginning of the current element: move to the
     ;; beginning of the previous one.
     ((= opoint start-el-beg)
      (forward-line -1)
      (skip-chars-backward " \r\t\n")
      (let* ((prev-element (org-element-at-point))
	     (itemp (org-in-item-p))
	     (struct (and itemp
			  (save-excursion (goto-char itemp)
					  (org-list-struct)))))
	;; When moving into a new list, go directly at the
	;; beginning of the top list structure.
	(if (and itemp (<= (org-list-get-bottom-point struct) opoint))
	    (progn
	      (goto-char (org-list-get-top-point struct))
	      (goto-char (org-element-get-property
			  :begin (org-element-at-point))))
	  (goto-char (org-element-get-property :begin prev-element))))
      (while (org-truely-invisible-p) (org-element-up)))
     ;; Else, move at the element beginning. One exception: if point
     ;; was in the blank lines after the end of a list, move directly
     ;; to the top item.
     (t
      (let (struct itemp)
	(if (and (setq itemp (org-in-item-p))
		 (<= (org-list-get-bottom-point
		      (save-excursion (goto-char itemp)
				      (setq struct (org-list-struct))))
		     opoint))
	    (progn (goto-char (org-list-get-top-point struct))
		   (goto-char (org-element-get-property
			       :begin (org-element-at-point))))
	  (goto-char start-el-beg)))))))

(defun org-element-drag-backward ()
  "Drag backward element at point."
  (interactive)
  (let* ((pos (point))
	 (elem (org-element-at-point)))
    (when (= (progn (goto-char (point-min))
		    (org-skip-whitespace)
		    (point-at-bol))
	     (org-element-get-property :end elem))
      (error "Cannot drag element backward"))
    (goto-char (org-element-get-property :begin elem))
    (org-element-backward)
    (let ((prev-elem (org-element-at-point)))
      (when (or (org-element-nested-p elem prev-elem)
		(and (eq (car elem) 'headline)
		     (not (eq (car prev-elem) 'headline))))
	(goto-char pos)
	(error "Cannot drag element backward"))
      ;; Compute new position of point: it's shifted by PREV-ELEM
      ;; body's length.
      (let ((size-prev (- (org-element-get-property :end prev-elem)
			  (org-element-get-property :begin prev-elem))))
	(org-element-swap-A-B prev-elem elem)
	(goto-char (- pos size-prev))))))

(defun org-element-drag-forward ()
  "Move forward element at point."
  (interactive)
  (let* ((pos (point))
	 (elem (org-element-at-point)))
    (when (= (point-max) (org-element-get-property :end elem))
      (error "Cannot drag element forward"))
    (goto-char (org-element-get-property :end elem))
    (let ((next-elem (org-element-at-point)))
      (when (or (org-element-nested-p elem next-elem)
		(and (eq (car next-elem) 'headline)
		     (not (eq (car elem) 'headline))))
	(goto-char pos)
	(error "Cannot drag element forward"))
      ;; Compute new position of point: it's shifted by NEXT-ELEM
      ;; body's length (without final blanks) and by the length of
      ;; blanks between ELEM and NEXT-ELEM.
      (let ((size-next (- (save-excursion
			    (goto-char (org-element-get-property :end next-elem))
			    (skip-chars-backward " \r\t\n")
			    (forward-line)
			    (point))
			  (org-element-get-property :begin next-elem)))
	    (size-blank (- (org-element-get-property :end elem)
			   (save-excursion
			     (goto-char (org-element-get-property :end elem))
			     (skip-chars-backward " \r\t\n")
			     (forward-line)
			     (point)))))
	(org-element-swap-A-B elem next-elem)
	(goto-char (+ pos size-next size-blank))))))

(defun org-element-forward ()
  "Move forward by one element."
  (interactive)
  (beginning-of-line)
  (cond ((eobp) (error "Cannot move further down"))
	((looking-at "[ \t]*$")
	 (org-skip-whitespace)
	 (goto-char (if (eobp) (point) (point-at-bol))))
	(t
	 (let ((element (org-element-at-point t))
	       (origin (point)))
	   (cond
	    ;; At an item: Either move to the next element inside, or
	    ;; to its end if it's hidden.
	    ((eq (car element) 'item)
	     (if (org-element-get-property :hiddenp element)
		 (goto-char (org-element-get-property :end element))
	       (end-of-line)
	       (re-search-forward org-element-paragraph-separate nil t)
	       (org-skip-whitespace)
	       (beginning-of-line)))
	    ;; At a recursive element: Either move inside, or if it's
	    ;; hidden, move to its end.
	    ((memq (car element) org-element-greater-elements)
	     (let ((cbeg (org-element-get-property :contents-begin element)))
	       (goto-char
		(if (or (org-element-get-property :hiddenp element)
			(> origin cbeg))
		    (org-element-get-property :end element)
		  cbeg))))
	    ;; Else: move to the current element's end.
	    (t (goto-char (org-element-get-property :end element))))))))

(defun org-element-mark-element ()
  "Put point at beginning of this element, mark at end.

Interactively, if this command is repeated or (in Transient Mark
mode) if the mark is active, it marks the next element after the
ones already marked."
  (interactive)
  (let (deactivate-mark)
    (if (or (and (eq last-command this-command) (mark t))
	    (and transient-mark-mode mark-active))
	(set-mark
	 (save-excursion
	   (goto-char (mark))
	   (goto-char (org-element-get-property :end (org-element-at-point)))))
      (let ((element (org-element-at-point)))
	(end-of-line)
	(push-mark (org-element-get-property :end element) t t)
	(goto-char (org-element-get-property :begin element))))))

(defun org-narrow-to-element ()
  "Narrow buffer to current element."
  (interactive)
  (let ((elem (org-element-at-point)))
    (cond
     ((eq (car elem) 'headline)
      (narrow-to-region
       (org-element-get-property :begin elem)
       (org-element-get-property :end elem)))
     ((memq (car elem) org-element-greater-elements)
      (narrow-to-region
       (org-element-get-property :contents-begin elem)
       (org-element-get-property :contents-end elem)))
     (t
      (narrow-to-region
       (org-element-get-property :begin elem)
       (org-element-get-property :end elem))))))

(defun org-transpose-elements ()
  "Transpose current and previous elements, keeping blank lines between.
Point is moved after both elements."
  (interactive)
  (org-skip-whitespace)
  (let ((pos (point))
	(cur (org-element-at-point)))
    (when (= (save-excursion (goto-char (point-min))
			     (org-skip-whitespace)
			     (point-at-bol))
	     (org-element-get-property :begin cur))
      (error "No previous element"))
    (goto-char (org-element-get-property :begin cur))
    (forward-line -1)
    (let ((prev (org-element-at-point)))
      (when (org-element-nested-p cur prev)
	(goto-char pos)
	(error "Cannot transpose nested elements"))
      (org-element-swap-A-B prev cur))))

(defun org-element-unindent-buffer ()
  "Un-indent the visible part of the buffer.
Relative indentation \(between items, inside blocks, etc.\) isn't
modified."
  (interactive)
  (unless (eq major-mode 'org-mode)
    (error "Cannot un-indent a buffer not in Org mode"))
  (let* ((parse-tree (org-element-parse-buffer 'greater-element))
	 unindent-tree                   ; For byte-compiler.
	 (unindent-tree
	  (function
	   (lambda (contents)
	     (mapc (lambda (element)
		     (if (eq (car element) 'headline)
			 (funcall unindent-tree
				  (org-element-get-contents element))
		       (save-excursion
			 (save-restriction
			   (narrow-to-region
			    (org-element-get-property :begin element)
			    (org-element-get-property :end element))
			   (org-do-remove-indentation)))))
		   (reverse contents))))))
    (funcall unindent-tree (org-element-get-contents parse-tree))))

(defun org-element-up ()
  "Move to upper element.
Return position at the beginning of the upper element."
  (interactive)
  (let ((opoint (point)) elem)
    (cond
     ((bobp) (error "No surrounding element"))
     ((org-with-limited-levels (org-at-heading-p))
      (or (org-up-heading-safe) (error "No surronding element")))
     ((and (org-at-item-p)
	   (setq elem (org-element-at-point))
	   (let* ((top-list-p (zerop (org-element-get-property :level elem))))
	     (unless top-list-p
	       ;; If parent is bound to be in the same list as the
	       ;; original point, move to that parent.
	       (let ((struct (org-element-get-property :structure elem)))
		 (goto-char
		  (org-list-get-parent
		   (point-at-bol) struct (org-list-parents-alist struct))))))))
     (t
      (let* ((elem (or elem (org-element-at-point)))
	     (end (save-excursion
		    (goto-char (org-element-get-property :end elem))
		    (skip-chars-backward " \r\t\n")
		    (forward-line)
		    (point)))
	     prev-elem)
	(goto-char (org-element-get-property :begin elem))
	(forward-line -1)
	(while (and (< (org-element-get-property
			:end (setq prev-elem (org-element-at-point)))
		       end)
		    (not (bobp)))
	  (goto-char (org-element-get-property :begin prev-elem))
	  (forward-line -1))
	(if (and (bobp) (< (org-element-get-property :end prev-elem) end))
	    (progn (goto-char opoint)
		   (error "No surrounding element"))
	  (goto-char (org-element-get-property :begin prev-elem))))))))


(provide 'org-element)
;;; org-element.el ends here

debug log:

solving 5b61942 ...
found 5b61942 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).