emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
blob e39d7da970bdd5600ae2237887874de8e3117cca 79060 bytes (raw)
name: lisp/ox-texinfo.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
 
;;; ox-texinfo.el --- Texinfo Backend for Org Export Engine -*- lexical-binding: t; -*-

;; Copyright (C) 2012-2024 Free Software Foundation, Inc.
;; Author: Jonathan Leech-Pepin <jonathan.leechpepin at gmail dot com>
;; Keywords: outlines, hypermedia, calendar, text

;; This file is part of GNU Emacs.

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

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

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

;;; Commentary:
;;
;; See Org manual for details.

;;; Code:

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

(require 'cl-lib)
(require 'ox)
(require 'org-element-ast)

(eval-when-compile (require 'subr-x))

(defvar orgtbl-exp-regexp)
(defvar org-texinfo-supports-math--cache)

\f
;;; Define Backend

(org-export-define-backend 'texinfo
  '((bold . org-texinfo-bold)
    (center-block . org-texinfo-center-block)
    (clock . org-texinfo-clock)
    (code . org-texinfo-code)
    (drawer . org-texinfo-drawer)
    (dynamic-block . org-texinfo-dynamic-block)
    (entity . org-texinfo-entity)
    (example-block . org-texinfo-example-block)
    (export-block . org-texinfo-export-block)
    (export-snippet . org-texinfo-export-snippet)
    (fixed-width . org-texinfo-fixed-width)
    (footnote-definition . org-texinfo-footnote-definition)
    (footnote-reference . org-texinfo-footnote-reference)
    (headline . org-texinfo-headline)
    (inline-src-block . org-texinfo-inline-src-block)
    (inlinetask . org-texinfo-inlinetask)
    (italic . org-texinfo-italic)
    (item . org-texinfo-item)
    (keyword . org-texinfo-keyword)
    (latex-environment . org-texinfo-latex-environment)
    (latex-fragment . org-texinfo-latex-fragment)
    (line-break . org-texinfo-line-break)
    (link . org-texinfo-link)
    (node-property . org-texinfo-node-property)
    (paragraph . org-texinfo-paragraph)
    (plain-list . org-texinfo-plain-list)
    (plain-text . org-texinfo-plain-text)
    (planning . org-texinfo-planning)
    (property-drawer . org-texinfo-property-drawer)
    (quote-block . org-texinfo-quote-block)
    (radio-target . org-texinfo-radio-target)
    (section . org-texinfo-section)
    (special-block . org-texinfo-special-block)
    (src-block . org-texinfo-src-block)
    (statistics-cookie . org-texinfo-statistics-cookie)
    (strike-through . org-texinfo-strike-through)
    (subscript . org-texinfo-subscript)
    (superscript . org-texinfo-superscript)
    (table . org-texinfo-table)
    (table-cell . org-texinfo-table-cell)
    (table-row . org-texinfo-table-row)
    (target . org-texinfo-target)
    (template . org-texinfo-template)
    (timestamp . org-texinfo-timestamp)
    (underline . org-texinfo-underline)
    (verbatim . org-texinfo-verbatim)
    (verse-block . org-texinfo-verse-block))
  :filters-alist
  '((:filter-headline . org-texinfo--filter-section-blank-lines)
    (:filter-parse-tree . (org-texinfo--normalize-headlines
			   org-texinfo--separate-definitions))
    (:filter-section . org-texinfo--filter-section-blank-lines)
    (:filter-final-output . org-texinfo--untabify))
  :menu-entry
  '(?i "Export to Texinfo"
       ((?t "As TEXI file" org-texinfo-export-to-texinfo)
	(?i "As INFO file" org-texinfo-export-to-info)
	(?o "As INFO file and open"
	    (lambda (a s v b)
	      (if a (org-texinfo-export-to-info t s v b)
		(org-open-file (org-texinfo-export-to-info nil s v b)))))))
  :options-alist
  '((:texinfo-filename "TEXINFO_FILENAME" nil nil t)
    (:texinfo-class "TEXINFO_CLASS" nil org-texinfo-default-class t)
    (:texinfo-header "TEXINFO_HEADER" nil nil newline)
    (:texinfo-post-header "TEXINFO_POST_HEADER" nil nil newline)
    (:subtitle "SUBTITLE" nil nil parse)
    (:subauthor "SUBAUTHOR" nil nil newline)
    (:texinfo-dircat "TEXINFO_DIR_CATEGORY" nil nil t)
    (:texinfo-dirtitle "TEXINFO_DIR_TITLE" nil nil t) ;Obsolete.
    (:texinfo-dirname "TEXINFO_DIR_NAME" nil nil t)
    (:texinfo-dirdesc "TEXINFO_DIR_DESC" nil nil t)
    (:texinfo-printed-title "TEXINFO_PRINTED_TITLE" nil nil t)
    ;; Other variables.
    (:texinfo-classes nil nil org-texinfo-classes)
    (:texinfo-format-headline-function nil nil org-texinfo-format-headline-function)
    (:texinfo-node-description-column nil nil org-texinfo-node-description-column)
    (:texinfo-active-timestamp-format nil nil org-texinfo-active-timestamp-format)
    (:texinfo-inactive-timestamp-format nil nil org-texinfo-inactive-timestamp-format)
    (:texinfo-diary-timestamp-format nil nil org-texinfo-diary-timestamp-format)
    (:texinfo-link-with-unknown-path-format nil nil org-texinfo-link-with-unknown-path-format)
    (:texinfo-tables-verbatim nil nil org-texinfo-tables-verbatim)
    (:texinfo-table-scientific-notation nil nil org-texinfo-table-scientific-notation)
    (:texinfo-table-default-markup nil nil org-texinfo-table-default-markup)
    (:texinfo-text-markup-alist nil nil org-texinfo-text-markup-alist)
    (:texinfo-format-drawer-function nil nil org-texinfo-format-drawer-function)
    (:texinfo-format-inlinetask-function nil nil org-texinfo-format-inlinetask-function)
    (:texinfo-compact-itemx nil "compact-itemx" org-texinfo-compact-itemx)
    ;; Redefine regular options.
    (:with-latex nil "tex" org-texinfo-with-latex)))

\f
;;; User Configurable Variables

(defgroup org-export-texinfo nil
  "Options for exporting Org mode files to Texinfo."
  :tag "Org Export Texinfo"
  :version "24.4"
  :package-version '(Org . "8.0")
  :group 'org-export)

;;;; Preamble

(defcustom org-texinfo-coding-system nil
  "Default document encoding for Texinfo output.

If nil it will default to `buffer-file-coding-system'."
  :type 'coding-system)

(defcustom org-texinfo-default-class "info"
  "The default Texinfo class."
  :type '(string :tag "Texinfo class"))

(defcustom org-texinfo-classes
  '(("info"
     "@documentencoding AUTO\n@documentlanguage AUTO"
     ("@chapter %s" "@unnumbered %s" "@chapheading %s" "@appendix %s")
     ("@section %s" "@unnumberedsec %s" "@heading %s" "@appendixsec %s")
     ("@subsection %s" "@unnumberedsubsec %s" "@subheading %s"
      "@appendixsubsec %s")
     ("@subsubsection %s" "@unnumberedsubsubsec %s" "@subsubheading %s"
      "@appendixsubsubsec %s")))
  "Alist of Texinfo classes and associated header and structure.
If #+TEXINFO_CLASS is set in the buffer, use its value and the
associated information.  Here is the structure of a class
definition:

  (class-name
    header-string
    (numbered-1 unnumbered-1 unnumbered-no-toc-1 appendix-1)
    (numbered-2 unnumbered-2 unnumbered-no-toc-2 appendix-2)
    ...)


The header string
-----------------

The header string is inserted in the header of the generated
document, right after \"@setfilename\" and \"@settitle\"
commands.

If it contains the special string

  \"@documentencoding AUTO\"

\"AUTO\" will be replaced with an appropriate coding system.  See
`org-texinfo-coding-system' for more information.  Likewise, if
the string contains the special string

  \"@documentlanguage AUTO\"

\"AUTO\" will be replaced with the language defined in the
buffer, through #+LANGUAGE keyword, or globally, with
`org-export-default-language', which see.


The sectioning structure
------------------------

The sectioning structure of the class is given by the elements
following the header string.  For each sectioning level, a number
of strings is specified.  A %s formatter is mandatory in each
section string and will be replaced by the title of the section."
  :version "27.1"
  :package-version '(Org . "9.2")
  :type '(repeat
	  (list (string :tag "Texinfo class")
		(string :tag "Texinfo header")
		(repeat :tag "Levels" :inline t
			(choice
			 (list :tag "Heading"
			       (string :tag "         numbered")
			       (string :tag "       unnumbered")
			       (string :tag "unnumbered-no-toc")
			       (string :tag "         appendix")))))))

;;;; Headline

(defcustom org-texinfo-format-headline-function
  'org-texinfo-format-headline-default-function
  "Function to format headline text.

This function will be called with 5 arguments:
TODO      the todo keyword (string or nil).
TODO-TYPE the type of todo (symbol: `todo', `done', nil)
PRIORITY  the priority of the headline (integer or nil)
TEXT      the main headline text (string).
TAGS      the tags as a list of strings (list of strings or nil).

The function result will be used in the section format string."
  :type 'function
  :version "26.1"
  :package-version '(Org . "8.3"))

;;;; Node listing (menu)

(defcustom org-texinfo-node-description-column 32
  "Column at which to start the description in the node listings.
If a node title is greater than this length, the description will
be placed after the end of the title."
  :type 'integer)

;;;; Timestamps

(defcustom org-texinfo-active-timestamp-format "@emph{%s}"
  "A printf format string to be applied to active timestamps."
  :type 'string)

(defcustom org-texinfo-inactive-timestamp-format "@emph{%s}"
  "A printf format string to be applied to inactive timestamps."
  :type 'string)

(defcustom org-texinfo-diary-timestamp-format "@emph{%s}"
  "A printf format string to be applied to diary timestamps."
  :type 'string)

;;;; Links

(defcustom org-texinfo-link-with-unknown-path-format "@indicateurl{%s}"
  "Format string for links with unknown path type."
  :type 'string)

;;;; Tables

(defcustom org-texinfo-tables-verbatim nil
  "When non-nil, tables are exported verbatim."
  :type 'boolean)

(defcustom org-texinfo-table-scientific-notation nil
  "Format string to display numbers in scientific notation.

The format should have \"%s\" twice, for mantissa and exponent
\(i.e. \"%s\\\\times10^{%s}\").

When nil, no transformation is made."
  :type '(choice
	  (string :tag "Format string")
	  (const :tag "No formatting" nil)))

(defcustom org-texinfo-table-default-markup "@asis"
  "Default markup for first column in two-column tables.

This should an indicating command, e.g., \"@code\", \"@kbd\" or
\"@samp\".

It can be overridden locally using the \":indic\" attribute."
  :type 'string
  :version "26.1"
  :package-version '(Org . "9.1")
  :safe #'stringp)

;;;; Text markup

(defcustom org-texinfo-text-markup-alist '((bold . "@strong{%s}")
					   (code . code)
					   (italic . "@emph{%s}")
					   (verbatim . samp))
  "Alist of Texinfo expressions to convert text markup.

The key must be a symbol among `bold', `code', `italic',
`strike-through', `underscore' and `verbatim'.  The value is
a formatting string to wrap fontified text with.

Value can also be set to the following symbols: `verb', `samp'
and `code'.  With the first one, Org uses \"@verb\" to create
a format string and selects a delimiter character that isn't in
the string.  For the other two, Org uses \"@samp\" or \"@code\"
to typeset and protects special characters.

When no association is found for a given markup, text is returned
as-is."
  :version "26.1"
  :package-version '(Org . "9.1")
  :type 'alist
  :options '(bold code italic strike-through underscore verbatim))

;;;; Drawers

(defcustom org-texinfo-format-drawer-function (lambda (_name contents) contents)
  "Function called to format a drawer in Texinfo code.

The function must accept two parameters:
  NAME      the drawer name, like \"LOGBOOK\"
  CONTENTS  the contents of the drawer.

The function should return the string to be exported.

The default function simply returns the value of CONTENTS."
  :version "24.4"
  :package-version '(Org . "8.2")
  :type 'function)

;;;; Inlinetasks

(defcustom org-texinfo-format-inlinetask-function
  'org-texinfo-format-inlinetask-default-function
  "Function called to format an inlinetask in Texinfo code.

The function must accept six parameters:
  TODO      the todo keyword, as a string
  TODO-TYPE the todo type, a symbol among `todo', `done' and nil.
  PRIORITY  the inlinetask priority, as a string
  NAME      the inlinetask name, as a string.
  TAGS      the inlinetask tags, as a list of strings.
  CONTENTS  the contents of the inlinetask, as a string.

The function should return the string to be exported."
  :type 'function)

;;;; LaTeX

(defcustom org-texinfo-with-latex (and org-export-with-latex 'detect)
  "When non-nil, the Texinfo exporter attempts to process LaTeX math.

When set to t, the exporter will process LaTeX environments and
fragments as Texinfo \"@displaymath\" and \"@math\" commands
respectively.  Alternatively, when set to `detect', the exporter
does so only if the installed version of Texinfo supports the
necessary commands."
  :package-version '(Org . "9.6")
  :type '(choice
          (const :tag "Detect" detect)
          (const :tag "Yes" t)
          (const :tag "No" nil)))

;;;; Itemx

(defcustom org-texinfo-compact-itemx nil
  "Non-nil means certain items in description list become `@itemx'.

If this is non-nil and an item in a description list has no
body but is followed by another item, then the second item is
transcoded to `@itemx'.  See info node `(org)Plain lists in
Texinfo export' for how to enable this for individual lists."
  :package-version '(Org . "9.6")
  :type 'boolean
  :safe t)

;;;; Compilation

(defcustom org-texinfo-info-process '("makeinfo --no-split %f")
  "Commands to process a Texinfo file to an INFO file.

This is a list of strings, each of them will be given to the
shell as a command.  %f in the command will be replaced by the
relative file name, %F by the absolute file name, %b by the file
base name (i.e. without directory and extension parts), %o by the
base directory of the file and %O by the absolute file name of
the output file."
  :version "26.1"
  :package-version '(Org . "9.1")
  :type '(repeat :tag "Shell command sequence"
		 (string :tag "Shell command")))

(defcustom org-texinfo-logfiles-extensions
  '("aux" "toc" "cp" "fn" "ky" "pg" "tp" "vr")
  "The list of file extensions to consider as Texinfo logfiles.
The logfiles will be remove if `org-texinfo-remove-logfiles' is
non-nil."
  :type '(repeat (string :tag "Extension")))

(defcustom org-texinfo-remove-logfiles t
  "Non-nil means remove the logfiles produced by compiling a Texinfo file.
By default, logfiles are files with these extensions: .aux, .toc,
.cp, .fn, .ky, .pg and .tp.  To define the set of logfiles to remove,
set `org-texinfo-logfiles-extensions'."
  :group 'org-export-latex
  :type 'boolean)

;;; Constants

(defconst org-texinfo-max-toc-depth 4
  "Maximum depth for creation of detailed menu listings.
Beyond this depth, Texinfo will not recognize the nodes and will
cause errors.  Left as a constant in case this value ever
changes.")

(defconst org-texinfo-supported-coding-systems
  '("US-ASCII" "UTF-8" "ISO-8859-15" "ISO-8859-1" "ISO-8859-2" "koi8-r" "koi8-u")
  "List of coding systems supported by Texinfo, as strings.
Specified coding system will be matched against these strings.
If two strings share the same prefix (e.g. \"ISO-8859-1\" and
\"ISO-8859-15\"), the most specific one has to be listed first.")

(defconst org-texinfo-inline-image-rules
  (list (cons "file"
	      (regexp-opt '("eps" "pdf" "png" "jpg" "jpeg" "gif" "svg"))))
  "Rules characterizing image files that can be inlined.")

(defvar org-texinfo--quoted-keys-regexp
  (regexp-opt '("BS" "TAB" "RET" "ESC" "SPC" "DEL"
		"LFD" "DELETE" "SHIFT" "Ctrl" "Meta" "Alt"
		"Cmd" "Super" "UP" "LEFT" "RIGHT" "DOWN")
	      'words)
  "Regexp matching keys that have to be quoted using @key{KEY}.")

(defconst org-texinfo--definition-command-alist
  '(("deffn Command" . "Command")
    ("defun" . "Function")
    ("defmac" . "Macro")
    ("defspec" . "Special Form")
    ("defvar" . "Variable")
    ("defopt" . "User Option")
    (nil . "Key"))
  "Alist mapping Texinfo definition commands to output in Info files.")

(defconst org-texinfo--definition-command-regexp
  (format "\\`%s: \\(.+\\)"
	  (regexp-opt
	   (delq nil (mapcar #'cdr org-texinfo--definition-command-alist))
	   t))
  "Regexp used to match definition commands in descriptive lists.")

\f
;;; Internal Functions

(defun org-texinfo--untabify (s _backend _info)
  "Remove TAB characters in string S."
  (replace-regexp-in-string "\t" (make-string tab-width ?\s) s))

(defun org-texinfo--filter-section-blank-lines (headline _backend _info)
  "Filter controlling number of blank lines after a section."
  (replace-regexp-in-string "\n\\(?:\n[ \t]*\\)*\\'" "\n\n" headline))

(defun org-texinfo--normalize-headlines (tree _backend info)
  "Normalize headlines in TREE.

BACKEND is the symbol specifying backend used for export.
INFO is a plist used as a communication channel.

Make sure every headline in TREE contains a section, since those
are required to install a menu.  Also put exactly one blank line
at the end of each section.

Return new tree."
  (org-element-map tree 'headline
    (lambda (hl)
      (org-element-put-property hl :post-blank 1)
      (let ((contents (org-element-contents hl)))
	(when contents
	  (let ((first (org-element-map contents '(headline section)
			 #'identity info t)))
	    (unless (org-element-type-p first 'section)
              (apply #'org-element-set-contents
                     hl
                     (org-element-create 'section `(:parent ,hl)) contents))))))
    info)
  tree)

(defun org-texinfo--find-verb-separator (s)
  "Return a character not used in string S.
This is used to choose a separator for constructs like \\verb."
  (let ((ll "~,./?;':\"|!@#%^&-_=+abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ<>()[]{}"))
    (cl-loop for c across ll
	     when (not (string-match (regexp-quote (char-to-string c)) s))
	     return (char-to-string c))))

(defun org-texinfo--text-markup (text markup _info)
  "Format TEXT depending on MARKUP text markup.
INFO is a plist used as a communication channel.  See
`org-texinfo-text-markup-alist' for details."
  (pcase (cdr (assq markup org-texinfo-text-markup-alist))
    (`nil text)				;no markup: return raw text
    (`code (format "@code{%s}" (org-texinfo--sanitize-content text)))
    (`samp (format "@samp{%s}" (org-texinfo--sanitize-content text)))
    (`verb
     (let ((separator (org-texinfo--find-verb-separator text)))
       (format "@verb{%s%s%s}" separator text separator)))
    ;; Else use format string.
    (fmt (format fmt text))))

(defun org-texinfo--get-node (datum info)
  "Return node or anchor associated to DATUM.
DATUM is a headline, a radio-target or a target.  INFO is a plist
used as a communication channel.  The function guarantees the
node or anchor name is unique."
  (let ((cache (plist-get info :texinfo-node-cache)))
    (or (cdr (assq datum cache))
	(let* ((salt 0)
	       (basename
		(org-texinfo--sanitize-node
		 (pcase (org-element-type datum)
		   (`headline
		    (org-texinfo--sanitize-title-reference
		     (org-export-get-alt-title datum info) info))
		   (`radio-target
		    (org-export-data (org-element-contents datum) info))
		   (`target
		    (org-element-property :value datum))
		   (_
		    (or (org-element-property :name datum)
			(org-export-get-reference datum info))))))
	       (name basename))
	  ;; Org exports deeper elements before their parents.  If two
	  ;; node names collide -- e.g., they have the same title --
	  ;; within the same hierarchy, the second one would get the
	  ;; smaller node name.  This is counter-intuitive.
	  ;; Consequently, we ensure that every parent headline gets
	  ;; its node beforehand.  As a recursive operation, this
	  ;; achieves the desired effect.
	  (let ((parent (org-element-lineage datum 'headline)))
	    (when (and parent (not (assq parent cache)))
	      (org-texinfo--get-node parent info)
	      (setq cache (plist-get info :texinfo-node-cache))))
	  ;; Ensure NAME is unique and not reserved node name "Top",
          ;; no matter what case is used.
	  (while (or (string-equal "Top" (capitalize name))
                     (rassoc name cache))
	    (setq name (concat basename (format " (%d)" (cl-incf salt)))))
	  (plist-put info :texinfo-node-cache (cons (cons datum name) cache))
	  name))))

(defun org-texinfo--sanitize-node (title)
  "Bend string TITLE to node line requirements.
Trim string and collapse multiple whitespace characters as they
are not significant.  Replace leading left parenthesis, when
followed by a right parenthesis, with a square bracket.  Remove
periods, commas and colons."
  (org-trim
   (replace-regexp-in-string
    "[ \t]+" " "
    (replace-regexp-in-string
     "[:,.]" ""
     (replace-regexp-in-string "\\`(\\(.*?)\\)" "[\\1" title)))))

(defun org-texinfo--sanitize-title (title info)
  "Make TITLE suitable as a section name.
TITLE is a string or a secondary string.  INFO is the current
export state, as a plist."
  (org-export-data-with-backend
   title
   (org-export-create-backend
    :parent 'texinfo
    :transcoders `((footnote-reference . ,#'ignore)
                   (radio-target . ,(lambda (_r c _) c))
                   (target . ,#'ignore)))
   info))

(defun org-texinfo--sanitize-title-reference (title info)
  "Make TITLE suitable as a section reference.
TITLE is a string or a secondary string.  INFO is the current
export state, as a plist."
  (org-export-data-with-backend
   title (org-export-toc-entry-backend 'texinfo) info))

(defun org-texinfo--sanitize-content (text)
  "Escape special characters in string TEXT.
Special characters are: @ { }"
  (replace-regexp-in-string "[@{}]" "@\\&" text))

(defun org-texinfo--wrap-float (value info &optional type label caption short)
  "Wrap string VALUE within a @float command.
INFO is the current export state, as a plist.  TYPE is float
type, as a string.  LABEL is the cross reference label for the
float, as a string.  CAPTION and SHORT are, respectively, the
caption and shortcaption used for the float, as secondary
strings (e.g., returned by `org-export-get-caption')."
  (let* ((backend
	  (org-export-toc-entry-backend 'texinfo
	    (cons 'footnote-reference
		  (lambda (f c i) (org-export-with-backend 'texinfo f c i)))))
	 (short-backend
	  (org-export-toc-entry-backend 'texinfo
	    '(inline-src-block . ignore)
	    '(verbatim . ignore)))
	 (short-str
	  (if (and short caption)
	      (format "@shortcaption{%s}\n"
		      (org-export-data-with-backend short short-backend info))
	    ""))
	 (caption-str
	  (if (or short caption)
	      (format "@caption{%s}\n"
		      (org-export-data-with-backend
		       (or caption short)
		       (if (equal short-str "") short-backend backend)
		       info))
	    "")))
    (format "@float %s%s\n%s\n%s%s@end float"
	    type (if label (concat "," label) "") value caption-str short-str)))

(defun org-texinfo--sectioning-structure (info)
  "Return sectioning structure used in the document.
INFO is a plist holding export options."
  (let ((class (plist-get info :texinfo-class)))
    (pcase (assoc class (plist-get info :texinfo-classes))
      (`(,_ ,_ . ,sections) sections)
      (_ (user-error "Unknown Texinfo class: %S" class)))))

(defun org-texinfo--separate-definitions (tree _backend info)
  "Split up descriptive lists in TREE that contain Texinfo definition commands.
INFO is a plist used as a communication channel.
Return new tree."
  (org-element-map tree 'plain-list
    (lambda (plain-list)
      (when (eq (org-element-property :type plain-list) 'descriptive)
	(let ((contents (org-element-contents plain-list))
	      (items nil))
	  (dolist (item contents)
	    (pcase-let ((`(,cmd . ,args) (org-texinfo--match-definition item)))
	      (cond
	       (cmd
		(when items
		  (org-texinfo--split-plain-list plain-list (nreverse items))
		  (setq items nil))
		(org-texinfo--split-definition plain-list item cmd args))
	       (t
		(when args
		  (org-texinfo--massage-key-item plain-list item args info))
		(push item items)))))
	  (unless (org-element-contents plain-list)
	    (org-element-extract plain-list)))))
    info)
  tree)

(defun org-texinfo--match-definition (item)
  "Return a cons-cell if ITEM specifies a Texinfo definition command.
The car is the command and the cdr is its arguments."
  (let ((tag (car-safe (org-element-property :tag item))))
    (and tag
	 (stringp tag)
	 (string-match org-texinfo--definition-command-regexp tag)
	 (pcase-let*
	     ((cmd (car (rassoc (match-string-no-properties 1 tag)
				org-texinfo--definition-command-alist)))
	      (`(,cmd ,category)
	       (and cmd (save-match-data (split-string cmd " "))))
	      (args (match-string-no-properties 2 tag)))
	   (cons cmd (if category (concat category " " args) args))))))

(defun org-texinfo--split-definition (plain-list item cmd args)
  "Insert a definition command before list PLAIN-LIST.
Replace list item ITEM with a special-block that inherits the
contents of ITEM and whose type and Texinfo attributes are
specified by CMD and ARGS."
  (let ((contents (org-element-contents item)))
    (org-element-insert-before
     (apply #'org-element-create 'special-block
	    (list :type cmd
		  :attr_texinfo (list (format ":options %s" args))
		  :post-blank (if contents 1 0))
	    (mapc #'org-element-extract contents))
     plain-list))
  (org-element-extract item))

(defun org-texinfo--split-plain-list (plain-list items)
  "Insert a new plain list before the plain list PLAIN-LIST.
Remove ITEMS from PLAIN-LIST and use them as the contents of the
new plain list."
  (org-element-insert-before
   (apply #'org-element-create 'plain-list
	  (list :type 'descriptive
                :attr_texinfo (org-element-property :attr_texinfo plain-list)
                :post-blank 1)
	  (mapc #'org-element-extract items))
   plain-list))

(defun org-texinfo--massage-key-item (plain-list item args info)
  "In PLAIN-LIST modify ITEM based on ARGS.

Reformat ITEM's tag property and determine the arguments for the
`@findex' and `@kindex' commands for ITEM and store them in ITEM
using the `:findex' and `:kindex' properties.

If PLAIN-LIST is a description list whose `:compact' attribute is
non-nil and ITEM has no content but is followed by another item,
then store the `@findex' and `@kindex' values in the next item.
If the previous item stored its respective values in this item,
then move them to the next item.

INFO is a plist used as a communication channel."
  (let ((key nil)
	(cmd nil))
    (if (string-match (rx (+ " ")
			  "(" (group (+ (not (any "()")))) ")"
			  (* " ")
			  eos)
		      args)
	(setq key (substring args 0 (match-beginning 0))
	      cmd (match-string 1 args))
      (setq key args))
    (org-element-put-property
     item :tag
     (cons (org-export-raw-string (org-texinfo-kbd-macro key t))
	   (and cmd `(" (" (code (:value ,cmd :post-blank 0)) ")"))))
    (let ((findex (org-element-property :findex item))
	  (kindex (org-element-property :kindex item))
	  (next-item (org-export-get-next-element item nil))
	  (mx (string-prefix-p "M-x " key)))
      (when (and (not cmd) mx)
	(setq cmd (substring key 4)))
      (when (and cmd (not (member cmd findex)))
	(setq findex (nconc findex (list cmd))))
      (unless mx
	(setq kindex (nconc kindex (list key))))
      (cond
       ((and next-item
             (or (plist-get info :texinfo-compact-itemx)
	         (org-not-nil
	          (org-export-read-attribute :attr_texinfo plain-list :compact)))
	     (not (org-element-contents item))
	     (eq 1 (org-element-post-blank item)))
	(org-element-put-property next-item :findex findex)
	(org-element-put-property next-item :kindex kindex)
	(org-element-put-property item :findex nil)
	(org-element-put-property item :kindex nil))
       (t
	(org-element-set-contents
	 item
	 (nconc (mapcar (lambda (key) `(keyword (:key "KINDEX" :value ,key))) kindex)
		(mapcar (lambda (cmd) `(keyword (:key "FINDEX" :value ,cmd))) findex)
		(org-element-contents item))))))))

;;; Template

(defun org-texinfo-template (contents info)
  "Return complete document string after Texinfo conversion.
CONTENTS is the transcoded contents string.  INFO is a plist
holding export options."
  (let ((title (org-export-data (plist-get info :title) info))
	;; Copying data is the contents of the first headline in
	;; parse tree with a non-nil copying property.
	(copying (org-element-map (plist-get info :parse-tree) 'headline
		   (lambda (hl)
		     (and (org-not-nil (org-element-property :COPYING hl))
			  (org-element-contents hl)))
		   info t)))
    (concat
     "\\input texinfo    @c -*- texinfo -*-\n"
     "@c %**start of header\n"
     (let ((file (or (org-strip-quotes (plist-get info :texinfo-filename))
		     (let ((f (plist-get info :output-file)))
		       (and f (concat (file-name-sans-extension f) ".info"))))))
       (and file (format "@setfilename %s\n" file)))
     (format "@settitle %s\n" title)
     ;; Insert class-defined header.
     (org-element-normalize-string
      (let ((header (nth 1 (assoc (plist-get info :texinfo-class)
				  org-texinfo-classes)))
	    (coding
	     (catch 'coding-system
	       (let ((case-fold-search t)
		     (name (symbol-name (or org-texinfo-coding-system
					    buffer-file-coding-system))))
		 (dolist (system org-texinfo-supported-coding-systems "UTF-8")
		   (when (string-match-p (regexp-quote system) name)
		     (throw 'coding-system system))))))
	    (language (plist-get info :language))
	    (case-fold-search nil))
	;; Auto coding system.
	(replace-regexp-in-string
	 "^@documentencoding \\(AUTO\\)$"
	 coding
	 (replace-regexp-in-string
	  "^@documentlanguage \\(AUTO\\)$" language header t nil 1)
	 t nil 1)))
     ;; Additional header options set by #+TEXINFO_HEADER.
     (let ((texinfo-header (plist-get info :texinfo-header)))
       (and texinfo-header (org-element-normalize-string texinfo-header)))
     "@c %**end of header\n\n"
     ;; Additional options set by #+TEXINFO_POST_HEADER.
     (let ((texinfo-post-header (plist-get info :texinfo-post-header)))
       (and texinfo-post-header
	    (org-element-normalize-string texinfo-post-header)))
     ;; Copying.
     (and copying
	  (format "@copying\n%s@end copying\n\n"
		  (org-element-normalize-string
		   (org-export-data copying info))))
     (let* ((dircat (or (plist-get info :texinfo-dircat) "Misc"))
	    (file (or (org-strip-quotes (plist-get info :texinfo-filename))
		      (plist-get info :output-file)))
	    (file (if file (file-name-sans-extension file)))
	    (dn (or (plist-get info :texinfo-dirname)
	            (plist-get info :texinfo-dirtitle))) ;Obsolete name.
	    ;; Strip any terminating `.' from `dn'.
	    (dn (if (and dn (string-match "\\.\\'" dn)) (substring dn 0 -1) dn))
	    ;; The direntry we need to produce has the shape:
	    ;;     * DIRNAME: NODE.   DESCRIPTION.
	    ;; where NODE is usually just `(FILENAME)', and where
	    ;; `* FILENAME.' is a shorthand for `* FILENAME: (FILENAME).'
	    (dirname
             (cond
              ((and dn (string-match
                        (eval-when-compile
                          (concat "\\`\\(?:"
                                  "\\* \\(?1:.*\\)" ;Starts with `* ' or
                                  "\\|\\(?1:.*(.*).*\\)" ;contains parens.
                                  "\\)\\'"))
                        dn))
               ;; When users provide a `dn' that looks like a complete
               ;; `* DIRNAME: (FILENAME).' thingy, we just trust them to
               ;; provide something valid (just making sure it starts
               ;; with `* ' and ends with `.').
               (format "* %s." (match-string 1 dn)))
              ;; `dn' is presumed to be just the DIRNAME part, so generate
              ;; either `* DIRNAME: (FILENAME).' or `* FILENAME.', whichever
              ;; is shortest.
              ((and dn (not (equal dn file)))
               (format "* %s: (%s)." dn (or file dn)))
              (t (format "* %s." file)))))
       (concat "@dircategory " dircat "\n"
	       "@direntry\n"
	       (let ((dirdesc
		      (let ((desc (or (plist-get info :texinfo-dirdesc)
			              title)))
			(cond ((not desc) nil)
			      ((string-suffix-p "." desc) desc)
			      (t (concat desc "."))))))
		 (if dirdesc (format "%-23s %s" dirname dirdesc) dirname))
	       "\n"
	       "@end direntry\n\n"))
     ;; Title
     "@finalout\n"
     "@titlepage\n"
     (when (plist-get info :with-title)
       (concat
	(format "@title %s\n"
		(or (plist-get info :texinfo-printed-title) title ""))
	(let ((subtitle (plist-get info :subtitle)))
	  (when subtitle
	    (format "@subtitle %s\n"
		    (org-export-data subtitle info))))))
     (when (plist-get info :with-author)
       (concat
	;; Primary author.
	(let ((author (org-string-nw-p
		       (org-export-data (plist-get info :author) info)))
	      (email (and (plist-get info :with-email)
			  (org-string-nw-p
			   (org-export-data (plist-get info :email) info)))))
	  (cond ((and author email)
		 (format "@author %s (@email{%s})\n" author email))
		(author (format "@author %s\n" author))
		(email (format "@author @email{%s}\n" email))))
	;; Other authors.
	(let ((subauthor (plist-get info :subauthor)))
	  (and subauthor
	       (org-element-normalize-string
		(replace-regexp-in-string "^" "@author " subauthor))))))
     (and copying "@page\n@vskip 0pt plus 1filll\n@insertcopying\n")
     "@end titlepage\n\n"
     ;; Table of contents.
     (and (plist-get info :with-toc) "@contents\n\n")
     ;; Configure Top Node when not for TeX.  Also include contents
     ;; from the first section of the document.
     "@ifnottex\n"
     ;; Top node.
     "@node Top"
     (if-let ((top-navigation
               (org-element-map (plist-get info :parse-tree) 'org-data
                 (lambda (data)
                   (org-element-property :ALT_NAVIGATION data))
                 info t)))
         (concat ", " top-navigation))
     "\n"
     (format "@top %s\n" title)
     (let* ((first-section
	     (org-element-map (plist-get info :parse-tree) 'section
	       #'identity info t '(headline)))
	    (top-contents
	     (org-export-data (org-element-contents first-section) info)))
       (and (org-string-nw-p top-contents) (concat "\n" top-contents)))
     "@end ifnottex\n\n"
     ;; Menu.
     (org-texinfo-make-menu (plist-get info :parse-tree) info 'master)
     "\n"
     ;; Document's body.
     contents "\n"
     ;; Creator.
     (and (plist-get info :with-creator)
	  (concat (plist-get info :creator) "\n"))
     ;; Document end.
     "@bye")))


\f
;;; Transcode Functions

;;;; Bold

(defun org-texinfo-bold (_bold contents info)
  "Transcode BOLD from Org to Texinfo.
CONTENTS is the text with bold markup.  INFO is a plist holding
contextual information."
  (org-texinfo--text-markup contents 'bold info))

;;;; Center Block

(defun org-texinfo-center-block (_center-block contents _info)
  "Transcode a CENTER-BLOCK element from Org to Texinfo.
CONTENTS holds the contents of the block.  INFO is a plist used
as a communication channel."
  (replace-regexp-in-string "\\(^\\).*?\\S-" "@center " contents nil nil 1))

;;;; Clock

(defun org-texinfo-clock (clock _contents info)
  "Transcode a CLOCK element from Org to Texinfo.
CONTENTS is nil.  INFO is a plist holding contextual
information."
  (concat
   "@noindent"
   (format "@strong{%s} " org-clock-string)
   (format (plist-get info :texinfo-inactive-timestamp-format)
	   (concat (org-timestamp-translate (org-element-property :value clock))
		   (let ((time (org-element-property :duration clock)))
		     (and time (format " (%s)" time)))))
   "@*"))

;;;; Code

(defun org-texinfo-code (code _contents info)
  "Transcode a CODE object from Org to Texinfo.
CONTENTS is nil.  INFO is a plist used as a communication
channel."
  (org-texinfo--text-markup (org-element-property :value code) 'code info))

;;;; Drawer

(defun org-texinfo-drawer (drawer contents info)
  "Transcode a DRAWER element from Org to Texinfo.
CONTENTS holds the contents of the block.  INFO is a plist
holding contextual information."
  (let* ((name (org-element-property :drawer-name drawer))
	 (output (funcall (plist-get info :texinfo-format-drawer-function)
			  name contents)))
    output))

;;;; Dynamic Block

(defun org-texinfo-dynamic-block (_dynamic-block contents _info)
  "Transcode a DYNAMIC-BLOCK element from Org to Texinfo.
CONTENTS holds the contents of the block.  INFO is a plist
holding contextual information."
  contents)

;;;; Entity

(defun org-texinfo-entity (entity _contents _info)
  "Transcode an ENTITY object from Org to Texinfo."
  ;; Since there is not specific Texinfo entry in entities, use
  ;; Texinfo-specific commands whenever possible, and fallback to
  ;; UTF-8 otherwise.
  (pcase (org-element-property :name entity)
    ("AElig"                       "@AE{}")
    ("aelig"                       "@ae{}")
    ((or "bull" "bullet")          "@bullet{}")
    ("copy"                        "@copyright{}")
    ("deg"                         "@textdegree{}")
    ((or "dots" "hellip")          "@dots{}")
    ("equiv"                       "@equiv{}")
    ((or "euro" "EUR")             "@euro{}")
    ((or "ge" "geq")               "@geq{}")
    ("laquo"                       "@guillemetleft{}")
    ("iexcl"                       "@exclamdown{}")
    ("imath"                       "@dotless{i}")
    ("iquest"                      "@questiondown{}")
    ("jmath"                       "@dotless{j}")
    ((or "le" "leq")               "@leq{}")
    ("lsaquo"                      "@guilsinglleft{}")
    ("mdash"                       "---")
    ("minus"                       "@minus{}")
    ("nbsp"                        "@tie{}")
    ("ndash"                       "--")
    ("OElig"                       "@OE{}")
    ("oelig"                       "@oe{}")
    ("ordf"                        "@ordf{}")
    ("ordm"                        "@ordm{}")
    ("pound"                       "@pound{}")
    ("raquo"                       "@guillemetright{}")
    ((or "rArr" "Rightarrow")      "@result{}")
    ("reg"                         "@registeredsymbol{}")
    ((or "rightarrow" "to" "rarr") "@arrow{}")
    ("rsaquo"                      "@guilsinglright{}")
    ("thorn"                       "@th{}")
    ("THORN"                       "@TH{}")
    ((and (pred (string-prefix-p "_")) name) ;spacing entities
     (format "@w{%s}" (substring name 1)))
    (_ (org-element-property :utf-8 entity))))

;;;; Example Block

(defun org-texinfo-example-block (example-block _contents info)
  "Transcode an EXAMPLE-BLOCK element from Org to Texinfo.
CONTENTS is nil.  INFO is a plist holding contextual
information."
  (format "@example\n%s@end example"
	  (org-texinfo--sanitize-content
	   (org-export-format-code-default example-block info))))

;;; Export Block

(defun org-texinfo-export-block (export-block _contents _info)
  "Transcode a EXPORT-BLOCK element from Org to Texinfo.
CONTENTS is nil.  INFO is a plist holding contextual information."
  (when (string= (org-element-property :type export-block) "TEXINFO")
    (org-remove-indentation (org-element-property :value export-block))))

;;; Export Snippet

(defun org-texinfo-export-snippet (export-snippet _contents _info)
  "Transcode a EXPORT-SNIPPET object from Org to Texinfo.
CONTENTS is nil.  INFO is a plist holding contextual information."
  (when (eq (org-export-snippet-backend export-snippet) 'texinfo)
    (org-element-property :value export-snippet)))

;;;; Fixed Width

(defun org-texinfo-fixed-width (fixed-width _contents _info)
  "Transcode a FIXED-WIDTH element from Org to Texinfo.
CONTENTS is nil.  INFO is a plist holding contextual information."
  (format "@example\n%s\n@end example"
	  (org-remove-indentation
	   (org-texinfo--sanitize-content
	    (org-element-property :value fixed-width)))))

;;;; Footnote Reference

(defun org-texinfo-footnote-reference (footnote _contents info)
  "Create a footnote reference for FOOTNOTE.

FOOTNOTE is the footnote to define.  CONTENTS is nil.  INFO is a
plist holding contextual information."
  (let* ((contents (org-export-get-footnote-definition footnote info))
         (data (org-export-data contents info)))
    (format "@footnote{%s}"
            ;; It is invalid to close a footnote on a line starting
            ;; with "@end".  As a safety net, we leave a newline
            ;; character before the closing brace.  However, when the
            ;; footnote ends with a paragraph, it is visually pleasing
            ;; to move the brace right after its end.
            (if (org-element-type-p (org-last contents) 'paragraph)
                (org-trim data)
              data))))

;;;; Headline

(defun org-texinfo-headline (headline contents info)
  "Transcode a HEADLINE element from Org to Texinfo.
CONTENTS holds the contents of the headline.  INFO is a plist
holding contextual information."
  (cond
   ((org-element-property :footnote-section-p headline) nil)
   ((org-not-nil (org-export-get-node-property :COPYING headline t)) nil)
   (t
    (let* ((index (let ((i (org-export-get-node-property :INDEX headline t)))
		    (and (member i '("cp" "fn" "ky" "pg" "tp" "vr")) i)))
	   (numbered? (org-export-numbered-headline-p headline info))
	   (notoc? (org-export-excluded-from-toc-p headline info))
	   (command
	    (and
             (not (org-export-low-level-p headline info))
	     (let ((sections (org-texinfo--sectioning-structure info)))
               (pcase (nth (1- (org-export-get-relative-level headline info))
			   sections)
		 (`(,numbered ,unnumbered ,unnumbered-no-toc ,appendix)
		  (cond
		   ((org-not-nil
		     (org-export-get-node-property :APPENDIX headline t))
		    appendix)
		   (numbered? numbered)
		   (index unnumbered)
		   (notoc? unnumbered-no-toc)
		   (t unnumbered)))
		 (`nil nil)
		 (_ (user-error "Invalid Texinfo class specification: %S"
				(plist-get info :texinfo-class)))))))
	   (todo
	    (and (plist-get info :with-todo-keywords)
		 (let ((todo (org-element-property :todo-keyword headline)))
		   (and todo (org-export-data todo info)))))
	   (todo-type (and todo (org-element-property :todo-type headline)))
	   (tags (and (plist-get info :with-tags)
		      (org-export-get-tags headline info)))
	   (priority (and (plist-get info :with-priority)
			  (org-element-property :priority headline)))
	   (text (org-texinfo--sanitize-title
		  (org-element-property :title headline) info))
	   (full-text
	    (funcall (plist-get info :texinfo-format-headline-function)
		     todo todo-type priority text tags))
           (navigation (org-element-property :ALT_NAVIGATION headline))
	   (contents
	    (concat "\n"
		    (if (org-string-nw-p contents) (concat "\n" contents) "")
		    (and index (format "\n@printindex %s\n" index))))
           (node (org-texinfo--get-node headline info)))
      (if (not command)
	  (concat (and (org-export-first-sibling-p headline info)
		       (format "@%s\n" (if numbered? 'enumerate 'itemize)))
		  (format "@item\n@anchor{%s}%s\n" node full-text)
		  contents
		  (if (org-export-last-sibling-p headline info)
		      (format "@end %s" (if numbered? 'enumerate 'itemize))
		    "\n"))
	(concat
	 ;; Even if HEADLINE is using @subheading and al., leave an
	 ;; anchor so cross-references in the Org document still work.
	 (format (if notoc? "@anchor{%s}" "@node %s") node)
         (if navigation (concat ", " navigation) "")
         "\n"
	 (format command full-text)
	 contents))))))

(defun org-texinfo-format-headline-default-function
    (todo _todo-type priority text tags)
  "Default format function for a headline.
See `org-texinfo-format-headline-function' for details."
  (concat (and todo (format "@strong{%s} " todo))
	  (and priority (format "@emph{#%s} " priority))
	  text
	  (and tags (concat " " (org-make-tag-string tags)))))

;;;; Inline Src Block

(defun org-texinfo-inline-src-block (inline-src-block _contents _info)
  "Transcode an INLINE-SRC-BLOCK element from Org to Texinfo.
CONTENTS holds the contents of the item.  INFO is a plist holding
contextual information."
  (format "@code{%s}"
	  (org-texinfo--sanitize-content
	   (org-element-property :value inline-src-block))))

;;;; Inlinetask

(defun org-texinfo-inlinetask (inlinetask contents info)
  "Transcode an INLINETASK element from Org to Texinfo.
CONTENTS holds the contents of the block.  INFO is a plist
holding contextual information."
  (let ((title (org-export-data (org-element-property :title inlinetask) info))
	(todo (and (plist-get info :with-todo-keywords)
		   (let ((todo (org-element-property :todo-keyword inlinetask)))
		     (and todo (org-export-data todo info)))))
	(todo-type (org-element-property :todo-type inlinetask))
	(tags (and (plist-get info :with-tags)
		   (org-export-get-tags inlinetask info)))
	(priority (and (plist-get info :with-priority)
		       (org-element-property :priority inlinetask))))
    (funcall (plist-get info :texinfo-format-inlinetask-function)
	     todo todo-type priority title tags contents)))

(defun org-texinfo-format-inlinetask-default-function
    (todo _todo-type priority title tags contents)
  "Default format function for inlinetasks.
See `org-texinfo-format-inlinetask-function' for details."
  (let ((full-title
	 (concat (when todo (format "@strong{%s} " todo))
		 (when priority (format "#%c " priority))
		 title
		 (when tags (org-make-tag-string tags)))))
    (format "@center %s\n\n%s\n" full-title contents)))

;;;; Italic

(defun org-texinfo-italic (_italic contents info)
  "Transcode ITALIC from Org to Texinfo.
CONTENTS is the text with italic markup.  INFO is a plist holding
contextual information."
  (org-texinfo--text-markup contents 'italic info))

;;;; Item

(defun org-texinfo-item (item contents info)
  "Transcode an ITEM element from Org to Texinfo.
CONTENTS holds the contents of the item.  INFO is a plist holding
contextual information."
  (let* ((tag (org-element-property :tag item))
         (plain-list (org-element-parent item))
         (compact (and (eq (org-element-property :type plain-list) 'descriptive)
                       (or (plist-get info :texinfo-compact-itemx)
                           (org-not-nil (org-export-read-attribute
                                         :attr_texinfo plain-list :compact)))))
         (previous-item nil))
    (when (and compact
               (org-export-get-next-element item info)
               (not (org-element-contents item))
               (eq 1 (org-element-post-blank item)))
      (org-element-put-property item :post-blank 0))
    (if (and compact
             (setq previous-item (org-export-get-previous-element item info))
             (not (org-element-contents previous-item))
	     (eq 0 (org-element-post-blank previous-item)))
        (format "@itemx%s\n%s"
                (if tag (concat " " (org-export-data tag info)) "")
                (or contents ""))
      (let* ((split (org-string-nw-p (org-export-read-attribute
                                      :attr_texinfo plain-list :sep)))
	     (items (and tag
		         (let ((tag (org-export-data tag info)))
		           (if split
			       (split-string tag (regexp-quote split)
                                             t "[ \t\n]+")
			     (list tag))))))
        (format "%s\n%s"
	        (pcase items
	          (`nil "@item")
	          (`(,item) (concat "@item " item))
	          (`(,item . ,items)
	           (concat "@item " item "\n"
		           (mapconcat (lambda (i) (concat "@itemx " i))
				      items
				      "\n"))))
	        (or contents ""))))))

;;;; Keyword

(defun org-texinfo-keyword (keyword _contents info)
  "Transcode a KEYWORD element from Org to Texinfo.
CONTENTS is nil.  INFO is a plist holding contextual information."
  (let ((value (org-element-property :value keyword)))
    (pcase (org-element-property :key keyword)
      ("TEXINFO" value)
      ("CINDEX" (format "@cindex %s" value))
      ("FINDEX" (format "@findex %s" value))
      ("KINDEX" (format "@kindex %s" value))
      ("PINDEX" (format "@pindex %s" value))
      ("TINDEX" (format "@tindex %s" value))
      ("VINDEX" (format "@vindex %s" value))
      ("TOC"
       (cond ((string-match-p "\\<tables\\>" value)
	      (concat "@listoffloats "
		      (org-export-translate "Table" :utf-8 info)))
	     ((string-match-p "\\<listings\\>" value)
	      (concat "@listoffloats "
		      (org-export-translate "Listing" :utf-8 info))))))))

;;;; LaTeX Environment

(defun org-texinfo-latex-environment (environment _contents info)
  "Transcode a LaTeX ENVIRONMENT from Org to Texinfo.
CONTENTS is ignored.  INFO is a plist holding contextual information."
  (let ((with-latex (plist-get info :with-latex)))
    (when (or (eq with-latex t)
              (and (eq with-latex 'detect)
                   (org-texinfo-supports-math-p)))
      (let ((value (org-element-property :value environment)))
        (string-join (list "@displaymath"
                           (string-trim (org-remove-indentation value))
                           "@end displaymath")
                     "\n")))))

;;;; LaTeX Fragment

(defun org-texinfo-latex-fragment (fragment _contents info)
  "Transcode a LaTeX FRAGMENT from Org to Texinfo.
INFO is a plist holding contextual information."
  (let ((with-latex (plist-get info :with-latex)))
    (when (or (eq with-latex t)
              (and (eq with-latex 'detect)
                   (org-texinfo-supports-math-p)))
      (let ((value (org-remove-indentation
                    (org-element-property :value fragment))))
        (cond
         ((or (string-match-p "^\\\\\\[" value)
              (string-match-p "^\\$\\$" value))
          (concat "\n"
                  "@displaymath"
                  "\n"
                  (string-trim (substring value 2 -2))
                  "\n"
                  "@end displaymath"
                  "\n"))
         ((string-match-p "^\\$" value)
          (concat "@math{"
                  (string-trim (substring value 1 -1))
                  "}"))
         ((string-match-p "^\\\\(" value)
          (concat "@math{"
                  (string-trim (substring value 2 -2))
                  "}"))
         (t value))))))

;;;; Line Break

(defun org-texinfo-line-break (_line-break _contents _info)
  "Transcode a LINE-BREAK object from Org to Texinfo.
CONTENTS is nil.  INFO is a plist holding contextual information."
  "@*\n")

;;;; Link

(defun org-texinfo--@ref (datum description info)
  "Return @ref command for element or object DATUM.
DESCRIPTION is the printed name of the section, as a string, or
nil."
  (let ((node-name (org-texinfo--get-node datum info))
	;; Sanitize DESCRIPTION for cross-reference use.  In
	;; particular, remove colons as they seem to cause pain (even
	;; within @asis{...}) to the Texinfo reader.
	(title (and description
		    (replace-regexp-in-string
		     "[ \t]*:+" ""
		     (replace-regexp-in-string "," "@comma{}" description)))))
    (if (or (not title) (equal title node-name))
	(format "@ref{%s}" node-name)
      (format "@ref{%s, , %s}" node-name title))))

(defun org-texinfo-link (link desc info)
  "Transcode a LINK object from Org to Texinfo.
DESC is the description part of the link, or the empty string.
INFO is a plist holding contextual information.  See
`org-export-data'."
  (let* ((type (org-element-property :type link))
	 (raw-path (org-element-property :path link))
	 ;; Ensure DESC really exists, or set it to nil.
	 (desc (and (not (string= desc "")) desc))
	 (path (org-texinfo--sanitize-content
		(cond
		 ((string-equal type "file")
		  (org-export-file-uri raw-path))
		 (t (concat type ":" raw-path))))))
    (cond
     ((org-export-custom-protocol-maybe link desc 'texinfo info))
     ((org-export-inline-image-p link org-texinfo-inline-image-rules)
      (org-texinfo--inline-image link info))
     ((equal type "radio")
      (let ((destination (org-export-resolve-radio-link link info)))
	(if (not destination) desc
	  (org-texinfo--@ref destination desc info))))
     ((member type '("custom-id" "id" "fuzzy"))
      (let ((destination
	     (if (equal type "fuzzy")
		 (org-export-resolve-fuzzy-link link info)
	       (org-export-resolve-id-link link info))))
	(pcase (org-element-type destination)
	  (`nil
	   (format org-texinfo-link-with-unknown-path-format path))
	  ;; Id link points to an external file.
	  (`plain-text
	   (if desc (format "@uref{file://%s,%s}" destination desc)
	     (format "@uref{file://%s}" destination)))
	  ((or `headline
	       ;; Targets within headlines cannot be turned into
	       ;; @anchor{}, so we refer to the headline parent
	       ;; directly.
	       (and `target
		    (guard
		     (org-element-type-p
		      (org-element-parent destination)
                      'headline))))
	   (let ((headline (org-element-lineage destination 'headline t)))
	     (org-texinfo--@ref headline desc info)))
	  (_ (org-texinfo--@ref destination desc info)))))
     ((string= type "mailto")
      (format "@email{%s}"
	      (concat path (and desc (concat ", " desc)))))
     ;; External link with a description part.
     ((and path desc) (format "@uref{%s, %s}" path desc))
     ;; External link without a description part.
     (path (format "@uref{%s}" path))
     ;; No path, only description.  Try to do something useful.
     (t
      (format (plist-get info :texinfo-link-with-unknown-path-format) desc)))))

(defun org-texinfo--inline-image (link info)
  "Return Texinfo code for an inline image.
LINK is the link pointing to the inline image.  INFO is the
current state of the export, as a plist."
  (let* ((parent (org-element-parent-element link))
	 (label (and (org-element-property :name parent)
		     (org-texinfo--get-node parent info)))
	 (caption (org-export-get-caption parent))
	 (shortcaption (org-export-get-caption parent t))
	 (path  (org-element-property :path link))
	 (filename
	  (file-name-sans-extension
	   (if (file-name-absolute-p path)
               (expand-file-name path)
             (file-relative-name path))))
	 (extension (file-name-extension path))
	 (attributes (org-export-read-attribute :attr_texinfo parent))
	 (height (or (plist-get attributes :height) ""))
	 (width (or (plist-get attributes :width) ""))
	 (alt (or (plist-get attributes :alt) ""))
	 (image (format "@image{%s,%s,%s,%s,%s}"
			filename width height alt extension)))
    (cond ((or caption shortcaption)
	   (org-texinfo--wrap-float image
				    info
				    (org-export-translate "Figure" :utf-8 info)
				    label
				    caption
				    shortcaption))
	  (label (concat "@anchor{" label "}\n" image))
	  (t image))))


;;;; Menu

(defun org-texinfo-make-menu (scope info &optional master)
  "Create the menu for inclusion in the Texinfo document.

SCOPE is a headline or a full parse tree.  INFO is the
communication channel, as a plist.

When optional argument MASTER is non-nil, generate a master menu,
including detailed node listing."
  (let ((menu (org-texinfo--build-menu scope info)))
    (when (org-string-nw-p menu)
      (org-element-normalize-string
       (format
	"@menu\n%s@end menu"
	(concat menu
		(when master
		  (let ((detailmenu
			 (org-texinfo--build-menu
			  scope info
			  (let ((toc-depth (plist-get info :with-toc)))
			    (if (wholenump toc-depth) toc-depth
			      org-texinfo-max-toc-depth)))))
		    (when (org-string-nw-p detailmenu)
		      (concat "\n@detailmenu\n"
			      "--- The Detailed Node Listing ---\n\n"
			      detailmenu
			      "@end detailmenu\n"))))))))))

(defun org-texinfo--build-menu (scope info &optional level)
  "Build menu for entries within SCOPE.
SCOPE is a headline or a full parse tree.  INFO is a plist
containing contextual information.  When optional argument LEVEL
is an integer, build the menu recursively, down to this depth."
  (cond
   ((not level)
    (org-texinfo--format-entries (org-texinfo--menu-entries scope info) info))
   ((zerop level) "\n")
   (t
    (mapconcat
     (lambda (h)
       (let ((entries (org-texinfo--menu-entries h info)))
	 (when entries
	   (concat
	    (format "%s\n\n%s\n"
		    (org-export-data (org-export-get-alt-title h info) info)
		    (org-texinfo--format-entries entries info))
	    (org-texinfo--build-menu h info (1- level))))))
     (org-texinfo--menu-entries scope info)
     ""))))

(defun org-texinfo--format-entries (entries info)
  "Format all direct menu entries in SCOPE, as a string.
SCOPE is either a headline or a full Org document.  INFO is
a plist containing contextual information."
  (org-element-normalize-string
   (mapconcat
    (lambda (h)
      (let* ((title
	      ;; Colons are used as a separator between title and node
	      ;; name.  Remove them.
	      (replace-regexp-in-string
	       "[ \t]*:+" ""
	       (org-texinfo--sanitize-title-reference
		(org-export-get-alt-title h info) info)))
	     (node (org-texinfo--get-node h info))
	     (entry (concat "* " title ":"
			    (if (string= title node) ":"
			      (concat " " node ". "))))
	     (desc (org-element-property :DESCRIPTION h)))
	(if (not desc) entry
	  (format (format "%%-%ds %%s" org-texinfo-node-description-column)
		  entry desc))))
    entries "\n")))

(defun org-texinfo--menu-entries (scope info)
  "List direct children in SCOPE needing a menu entry.
SCOPE is a headline or a full parse tree.  INFO is a plist
holding contextual information."
  (let* ((cache (or (plist-get info :texinfo-entries-cache)
		    (plist-get (plist-put info :texinfo-entries-cache
					  (make-hash-table :test #'eq))
			       :texinfo-entries-cache)))
	 (cached-entries (gethash scope cache 'no-cache)))
    (if (not (eq cached-entries 'no-cache)) cached-entries
      (let* ((sections (org-texinfo--sectioning-structure info))
             (max-depth (length sections)))
        (puthash scope
	         (cl-remove-if
		  (lambda (h)
		    (or (org-not-nil (org-export-get-node-property :COPYING h t))
                        (< max-depth (org-export-get-relative-level h info))))
		  (org-export-collect-headlines info 1 scope))
	         cache)))))

;;;; Node Property

(defun org-texinfo-node-property (node-property _contents _info)
  "Transcode a NODE-PROPERTY element from Org to Texinfo.
CONTENTS is nil.  INFO is a plist holding contextual
information."
  (format "%s:%s"
          (org-element-property :key node-property)
          (let ((value (org-element-property :value node-property)))
            (if value (concat " " value) ""))))

;;;; Paragraph

(defun org-texinfo-paragraph (_paragraph contents _info)
  "Transcode a PARAGRAPH element from Org to Texinfo.
CONTENTS is the contents of the paragraph, as a string.  INFO is
the plist used as a communication channel."
  ;; Ensure that we do not create multiple paragraphs, when a single
  ;; paragraph is expected.
  ;; Multiple newlines may appear in CONTENTS, for example, when
  ;; certain objects are stripped from export, leaving single newlines
  ;; before and after.
  (org-remove-blank-lines contents))

;;;; Plain List

(defun org-texinfo-plain-list (plain-list contents info)
  "Transcode a PLAIN-LIST element from Org to Texinfo.
CONTENTS is the contents of the list.  INFO is a plist holding
contextual information."
  (let* ((attr (org-export-read-attribute :attr_texinfo plain-list))
	 (indic (let ((i (or (plist-get attr :indic)
			     (plist-get info :texinfo-table-default-markup))))
		  ;; Allow indicating commands with missing @ sign.
		  (if (string-prefix-p "@" i) i (concat "@" i))))
	 (table-type (plist-get attr :table-type))
	 (type (org-element-property :type plain-list))
	 (enum
	  (cond ((not (eq type 'ordered)) nil)
		((plist-member attr :enum) (plist-get attr :enum))
		(t
		 ;; Texinfo only supports initial counters, i.e., it
		 ;; cannot change the numbering mid-list.
		 (let ((first-item (car (org-element-contents plain-list))))
		   (org-element-property :counter first-item)))))
	 (list-type (cond
		     ((eq type 'ordered) "enumerate")
		     ((eq type 'unordered) "itemize")
		     ((member table-type '("ftable" "vtable")) table-type)
		     (t "table"))))
    (format "@%s\n%s@end %s"
	    (cond ((eq type 'descriptive) (concat list-type " " indic))
		  (enum (format "%s %s" list-type enum))
		  (t list-type))
	    contents
	    list-type)))

;;;; Plain Text

(defun org-texinfo-plain-text (text info)
  "Transcode a TEXT string from Org to Texinfo.
TEXT is the string to transcode.  INFO is a plist holding
contextual information."
  ;; First protect @, { and }.
  (let ((output (org-texinfo--sanitize-content text)))
    ;; Activate smart quotes.  Be sure to provide original TEXT string
    ;; since OUTPUT may have been modified.
    (when (plist-get info :with-smart-quotes)
      (setq output
	    (org-export-activate-smart-quotes output :texinfo info text)))
    ;; LaTeX into @LaTeX{} and TeX into @TeX{}
    (let ((case-fold-search nil))
      (setq output (replace-regexp-in-string "\\(?:La\\)?TeX" "@\\&{}" output)))
    ;; Convert special strings.
    (when (plist-get info :with-special-strings)
      (setq output
	    (replace-regexp-in-string
	     "\\.\\.\\." "@dots{}"
	     (replace-regexp-in-string "\\\\-" "@-" output))))
    ;; Handle break preservation if required.
    (when (plist-get info :preserve-breaks)
      (setq output (replace-regexp-in-string
		    "\\(\\\\\\\\\\)?[ \t]*\n" " @*\n" output)))
    ;; Reverse sentence ending.  A sentence can end with a capital
    ;; letter.  Use non-breaking space if it shouldn't.
    (let ((case-fold-search nil))
      (replace-regexp-in-string
       "[A-Z]\\([.?!]\\)\\(?:[])]\\|'\\{1,2\\}\\)?\\(?: \\|$\\)"
       "@\\1"
       output nil nil 1))))

;;;; Planning

(defun org-texinfo-planning (planning _contents info)
  "Transcode a PLANNING element from Org to Texinfo.
CONTENTS is nil.  INFO is a plist holding contextual
information."
  (concat
   "@noindent"
   (mapconcat
    #'identity
    (delq nil
	  (list
	   (let ((closed (org-element-property :closed planning)))
	     (when closed
	       (concat
		(format "@strong{%s} " org-closed-string)
		(format (plist-get info :texinfo-inactive-timestamp-format)
			(org-timestamp-translate closed)))))
	   (let ((deadline (org-element-property :deadline planning)))
	     (when deadline
	       (concat
		(format "@strong{%s} " org-deadline-string)
		(format (plist-get info :texinfo-active-timestamp-format)
			(org-timestamp-translate deadline)))))
	   (let ((scheduled (org-element-property :scheduled planning)))
	     (when scheduled
	       (concat
		(format "@strong{%s} " org-scheduled-string)
		(format (plist-get info :texinfo-active-timestamp-format)
			(org-timestamp-translate scheduled)))))))
    " ")
   "@*"))

;;;; Property Drawer

(defun org-texinfo-property-drawer (_property-drawer contents _info)
  "Transcode a PROPERTY-DRAWER element from Org to Texinfo.
CONTENTS holds the contents of the drawer.  INFO is a plist
holding contextual information."
  (and (org-string-nw-p contents)
       (format "@verbatim\n%s@end verbatim" contents)))

;;;; Quote Block

(defun org-texinfo-quote-block (quote-block contents _info)
  "Transcode a QUOTE-BLOCK element from Org to Texinfo.
CONTENTS holds the contents of the block.  INFO is a plist
holding contextual information."
  (let ((tag (org-export-read-attribute :attr_texinfo quote-block :tag))
	(author (org-export-read-attribute :attr_texinfo quote-block :author)))
    (format "@quotation%s\n%s%s\n@end quotation"
	    (if tag (concat " " tag) "")
	    contents
	    (if author (concat "\n@author " author) ""))))

;;;; Radio Target

(defun org-texinfo-radio-target (radio-target text info)
  "Transcode a RADIO-TARGET object from Org to Texinfo.
TEXT is the text of the target.  INFO is a plist holding
contextual information."
  (format "@anchor{%s}%s"
	  (org-texinfo--get-node radio-target info)
	  text))

;;;; Section

(defun org-texinfo-section (section contents info)
  "Transcode a SECTION element from Org to Texinfo.
CONTENTS holds the contents of the section.  INFO is a plist
holding contextual information."
  (let ((parent (org-element-lineage section 'headline)))
    (when parent   ;first section is handled in `org-texinfo-template'
      (org-trim
       (concat contents
	       "\n"
	       (and (not (org-export-excluded-from-toc-p parent info))
		    (org-texinfo-make-menu parent info)))))))

;;;; Special Block

(defun org-texinfo-special-block (special-block contents _info)
  "Transcode a SPECIAL-BLOCK element from Org to Texinfo.
CONTENTS holds the contents of the block.  INFO is a plist used
as a communication channel."
  (let ((opt (org-export-read-attribute :attr_texinfo special-block :options))
	(type (org-element-property :type special-block)))
    (format "@%s%s\n%s@end %s"
	    type
	    (if opt (concat " " opt) "")
	    (or contents "")
	    type)))

;;;; Src Block

(defun org-texinfo-src-block (src-block _contents info)
  "Transcode a SRC-BLOCK element from Org to Texinfo.
CONTENTS holds the contents of the item.  INFO is a plist holding
contextual information."
  (let* ((lisp (string-match-p
                "lisp"
		(or (org-element-property :language src-block) "")))
	 (code (org-texinfo--sanitize-content
		(org-export-format-code-default src-block info)))
	 (value (format
		 (if lisp "@lisp\n%s@end lisp" "@example\n%s@end example")
		 code))
	 (caption (org-export-get-caption src-block))
	 (shortcaption (org-export-get-caption src-block t)))
    (if (not (or caption shortcaption)) value
      (org-texinfo--wrap-float value
			       info
			       (org-export-translate "Listing" :utf-8 info)
			       (org-texinfo--get-node src-block info)
			       caption
			       shortcaption))))

;;;; Statistics Cookie

(defun org-texinfo-statistics-cookie (statistics-cookie _contents _info)
  "Transcode a STATISTICS-COOKIE object from Org to Texinfo.
CONTENTS is nil.  INFO is a plist holding contextual information."
  (org-element-property :value statistics-cookie))


;;;; Strike-through

(defun org-texinfo-strike-through (_strike-through contents info)
  "Transcode STRIKE-THROUGH from Org to Texinfo.
CONTENTS is the text with strike-through markup.  INFO is a plist
holding contextual information."
  (org-texinfo--text-markup contents 'strike-through info))

;;;; Subscript

(defun org-texinfo-subscript (_subscript contents _info)
  "Transcode a SUBSCRIPT object from Org to Texinfo.
CONTENTS is the contents of the object.  INFO is a plist holding
contextual information."
  (format "@math{_%s}" contents))

;;;; Superscript

(defun org-texinfo-superscript (_superscript contents _info)
  "Transcode a SUPERSCRIPT object from Org to Texinfo.
CONTENTS is the contents of the object.  INFO is a plist holding
contextual information."
  (format "@math{^%s}" contents))

;;;; Table

(defun org-texinfo-table (table contents info)
  "Transcode a TABLE element from Org to Texinfo.
CONTENTS is the contents of the table.  INFO is a plist holding
contextual information."
  (if (eq (org-element-property :type table) 'table.el)
      (format "@verbatim\n%s@end verbatim"
	      (org-element-normalize-string
	       (org-element-property :value table)))
    (let* ((col-width (org-export-read-attribute :attr_texinfo table :columns))
	   (columns
	    (if col-width (format "@columnfractions %s" col-width)
	      (org-texinfo-table-column-widths table info)))
	   (caption (org-export-get-caption table))
	   (shortcaption (org-export-get-caption table t))
	   (table-str (format "@multitable %s\n%s@end multitable"
			      columns
			      contents)))
      (if (not (or caption shortcaption)) table-str
	(org-texinfo--wrap-float table-str
				 info
				 (org-export-translate "Table" :utf-8 info)
				 (org-texinfo--get-node table info)
				 caption
				 shortcaption)))))

(defun org-texinfo-table-column-widths (table info)
  "Determine the largest table cell in each column to process alignment.
TABLE is the table element to transcode.  INFO is a plist used as
a communication channel."
  (let ((widths (make-vector (cdr (org-export-table-dimensions table info)) 0)))
    (org-element-map table 'table-row
      (lambda (row)
	(let ((idx 0))
	  (org-element-map row 'table-cell
	    (lambda (cell)
	      ;; Length of the cell in the original buffer is only an
	      ;; approximation of the length of the cell in the
	      ;; output.  It can sometimes fail (e.g. it considers
	      ;; "/a/" being larger than "ab").
	      (let ((w (- (org-element-contents-end cell)
			  (org-element-contents-begin cell))))
		(aset widths idx (max w (aref widths idx))))
	      (cl-incf idx))
	    info)))
      info)
    (format "{%s}" (mapconcat (lambda (w) (make-string w ?a)) widths "} {"))))

;;;; Table Cell

(defun org-texinfo-table-cell (table-cell contents info)
  "Transcode a TABLE-CELL element from Org to Texinfo.
CONTENTS is the cell contents.  INFO is a plist used as
a communication channel."
  (concat
   (let ((scientific-notation
	  (plist-get info :texinfo-table-scientific-notation)))
     (if (and contents
	      scientific-notation
	      (string-match orgtbl-exp-regexp contents))
	 ;; Use appropriate format string for scientific notation.
	 (format scientific-notation
		 (match-string 1 contents)
		 (match-string 2 contents))
       contents))
   (when (org-export-get-next-element table-cell info) "\n@tab ")))

;;;; Table Row

(defun org-texinfo-table-row (table-row contents info)
  "Transcode a TABLE-ROW element from Org to Texinfo.
CONTENTS is the contents of the row.  INFO is a plist used as
a communication channel."
  ;; Rules are ignored since table separators are deduced from
  ;; borders of the current row.
  (when (eq (org-element-property :type table-row) 'standard)
    (let ((rowgroup-tag
	   (if (and (= 1 (org-export-table-row-group table-row info))
		    (org-export-table-has-header-p
		     (org-element-lineage table-row 'table) info))
	       "@headitem "
	     "@item ")))
      (concat rowgroup-tag contents "\n"))))

;;;; Target

(defun org-texinfo-target (target _contents info)
  "Transcode a TARGET object from Org to Texinfo.
CONTENTS is nil.  INFO is a plist holding contextual
information."
  (format "@anchor{%s}" (org-texinfo--get-node target info)))

;;;; Timestamp

(defun org-texinfo-timestamp (timestamp _contents info)
  "Transcode a TIMESTAMP object from Org to Texinfo.
CONTENTS is nil.  INFO is a plist holding contextual
information."
  (let ((value (org-texinfo-plain-text
		(org-timestamp-translate timestamp) info)))
    (pcase (org-element-property :type timestamp)
      ((or `active `active-range)
       (format (plist-get info :texinfo-active-timestamp-format) value))
      ((or `inactive `inactive-range)
       (format (plist-get info :texinfo-inactive-timestamp-format) value))
      (_ (format (plist-get info :texinfo-diary-timestamp-format) value)))))

;;;; Underline

(defun org-texinfo-underline (_underline contents info)
  "Transcode UNDERLINE from Org to Texinfo.
CONTENTS is the text with underline markup.  INFO is a plist
holding contextual information."
  (org-texinfo--text-markup contents 'underline info))

;;;; Verbatim

(defun org-texinfo-verbatim (verbatim _contents info)
  "Transcode a VERBATIM object from Org to Texinfo.
CONTENTS is nil.  INFO is a plist used as a communication
channel."
  (org-texinfo--text-markup
   (org-element-property :value verbatim) 'verbatim info))

;;;; Verse Block

(defun org-texinfo-verse-block (_verse-block contents _info)
  "Transcode a VERSE-BLOCK element from Org to Texinfo.
CONTENTS is verse block contents.  INFO is a plist holding
contextual information."
  (format "@display\n%s@end display" contents))

\f
;;; Public Functions

(defun org-texinfo-kbd-macro (key &optional noquote)
  "Quote KEY using @kbd{...} and if necessary @key{...}.

This is intended to be used as an Org macro like so:

  #+macro: kbd (eval (org-texinfo-kbd-macro $1))
  Type {{{kbd(C-c SPC)}}}.

Also see info node `(org)Key bindings in Texinfo export'.

If optional NOQOUTE is non-nil, then do not add the quoting
that is necessary when using this in an Org macro."
  (format (if noquote "@kbd{%s}" "@@texinfo:@kbd{@@%s@@texinfo:}@@")
	  (let ((case-fold-search nil))
	    (replace-regexp-in-string
	     org-texinfo--quoted-keys-regexp
	     (if noquote "@key{\\&}" "@@texinfo:@key{@@\\&@@texinfo:}@@")
	     key t))))

;;; Interactive Functions

;;;###autoload
(defun org-texinfo-export-to-texinfo
    (&optional async subtreep visible-only body-only ext-plist)
  "Export current buffer to a Texinfo file.

If narrowing is active in the current buffer, only export its
narrowed part.

If a region is active, export that region.

A non-nil optional argument ASYNC means the process should happen
asynchronously.  The resulting file should be accessible through
the `org-export-stack' interface.

When optional argument SUBTREEP is non-nil, export the sub-tree
at point, extracting information from the headline properties
first.

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

When optional argument BODY-ONLY is non-nil, only write code
between \"\\begin{document}\" and \"\\end{document}\".

EXT-PLIST, when provided, is a property list with external
parameters overriding Org default settings, but still inferior to
file-local settings.

Return output file's name."
  (interactive)
  (let ((outfile (org-export-output-file-name ".texi" subtreep))
	(org-export-coding-system org-texinfo-coding-system))
    (org-export-to-file 'texinfo outfile
      async subtreep visible-only body-only ext-plist)))

(defun org-texinfo-export-to-texinfo-batch ()
  "Export Org file INFILE to Texinfo file OUTFILE, in batch mode.
Overwrites existing output file.
Usage: emacs -batch -f org-texinfo-export-to-texinfo-batch INFILE OUTFILE"
  (or noninteractive (user-error "Batch mode use only"))
  (let ((infile (pop command-line-args-left))
	(outfile (pop command-line-args-left))
	(org-export-coding-system org-texinfo-coding-system)
        (make-backup-files nil))
    (unless (file-readable-p infile)
      (message "File `%s' not readable" infile)
      (kill-emacs 1))
    (with-temp-buffer
      (insert-file-contents infile)
      (org-export-to-file 'texinfo outfile))))

;;;###autoload
(defun org-texinfo-export-to-info
    (&optional async subtreep visible-only body-only ext-plist)
  "Export current buffer to Texinfo then process through to INFO.

If narrowing is active in the current buffer, only export its
narrowed part.

If a region is active, export that region.

A non-nil optional argument ASYNC means the process should happen
asynchronously.  The resulting file should be accessible through
the `org-export-stack' interface.

When optional argument SUBTREEP is non-nil, export the sub-tree
at point, extracting information from the headline properties
first.

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

When optional argument BODY-ONLY is non-nil, only write code
between \"\\begin{document}\" and \"\\end{document}\".

EXT-PLIST, when provided, is a property list with external
parameters overriding Org default settings, but still inferior to
file-local settings.

Return INFO file's name."
  (interactive)
  (let ((outfile (org-export-output-file-name ".texi" subtreep))
	(org-export-coding-system org-texinfo-coding-system))
    (org-export-to-file 'texinfo outfile
      async subtreep visible-only body-only ext-plist
      #'org-texinfo-compile)))

;;;###autoload
(defun org-texinfo-publish-to-texinfo (plist filename pub-dir)
  "Publish an org file to Texinfo.

FILENAME is the filename of the Org file to be published.  PLIST
is the property list for the given project.  PUB-DIR is the
publishing directory.

Return output file name."
  (org-publish-org-to 'texinfo filename ".texi" plist pub-dir))

;;;###autoload
(defun org-texinfo-convert-region-to-texinfo ()
  "Assume the current region has Org syntax, and convert it to Texinfo.
This can be used in any buffer.  For example, you can write an
itemized list in Org syntax in an Texinfo buffer and use this
command to convert it."
  (interactive)
  (org-export-replace-region-by 'texinfo))

(defalias 'org-export-region-to-texinfo #'org-texinfo-convert-region-to-texinfo)

(defun org-texinfo-compile (file)
  "Compile a texinfo file.

FILE is the name of the file being compiled.  Processing is done
through the command specified in `org-texinfo-info-process',
which see.  Output is redirected to \"*Org INFO Texinfo Output*\"
buffer.

Return INFO file name or an error if it couldn't be produced."
  (message "Processing Texinfo file %s..." file)
  (let* ((log-name "*Org INFO Texinfo Output*")
	 (log (get-buffer-create log-name))
	 (output
	  (org-compile-file file org-texinfo-info-process "info"
			    (format "See %S for details" log-name)
			    log)))
    (when org-texinfo-remove-logfiles
      (let ((base (file-name-sans-extension output)))
	(dolist (ext org-texinfo-logfiles-extensions)
	  (let ((file (concat base "." ext)))
	    (when (file-exists-p file) (delete-file file))))))
    (message "Process completed.")
    output))

(defun org-texinfo-supports-math-p ()
  "Return t if the installed version of Texinfo supports \"@math\".

Once computed, the results remain cached."
  (unless (boundp 'org-texinfo-supports-math--cache)
    (setq org-texinfo-supports-math--cache
          (let ((math-example "1 + 1 = 2"))
            (let* ((input-file (make-temp-file "test" nil ".info"))
                   (input-content (string-join
                                   (list (format "@setfilename %s" input-file)
                                         "@node Top"
                                         "@displaymath"
                                         math-example
                                         "@end displaymath")
                                   "\n")))
              (with-temp-file input-file
                (insert input-content))
              (when-let* ((output-file
                           ;; If compilation fails, consider math to
                           ;; be not supported.
                           (ignore-errors (org-texinfo-compile input-file)))
                          (output-content (with-temp-buffer
                                            (insert-file-contents output-file)
                                            (buffer-string))))
                (let ((result (string-match-p (regexp-quote math-example)
                                              output-content)))
                  (delete-file input-file)
                  (delete-file output-file)
                  (if result t nil)))))))
  org-texinfo-supports-math--cache)

(provide 'ox-texinfo)

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

;;; ox-texinfo.el ends here

debug log:

solving e39d7da97 ...
found e39d7da97 in https://yhetil.org/orgmode/m2v7zrh0go.fsf@adamkovic.org/
found a396d93d3 in https://yhetil.org/orgmode/m2v7zrh0go.fsf@adamkovic.org/
found 6adee9fca in https://git.savannah.gnu.org/cgit/emacs/org-mode.git
preparing index
index prepared:
100644 6adee9fca3fbf463a32a260fb5eda67369190c04	lisp/ox-texinfo.el

applying [1/2] https://yhetil.org/orgmode/m2v7zrh0go.fsf@adamkovic.org/
diff --git a/lisp/ox-texinfo.el b/lisp/ox-texinfo.el
index 6adee9fca..a396d93d3 100644


applying [2/2] https://yhetil.org/orgmode/m2v7zrh0go.fsf@adamkovic.org/
diff --git a/lisp/ox-texinfo.el b/lisp/ox-texinfo.el
index a396d93d3..e39d7da97 100644

Checking patch lisp/ox-texinfo.el...
Applied patch lisp/ox-texinfo.el cleanly.
Checking patch lisp/ox-texinfo.el...
Applied patch lisp/ox-texinfo.el cleanly.

index at:
100644 e39d7da970bdd5600ae2237887874de8e3117cca	lisp/ox-texinfo.el

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).