all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
blob 013c5639a1ef527aa3428ba82806f31df7035a39 227985 bytes (raw)
name: doc/misc/reftex.texi 	 # note: path name is non-authoritative(*)

   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
5046
5047
5048
5049
5050
5051
5052
5053
5054
5055
5056
5057
5058
5059
5060
5061
5062
5063
5064
5065
5066
5067
5068
5069
5070
5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085
5086
5087
5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
5298
5299
5300
5301
5302
5303
5304
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
5343
5344
5345
5346
5347
5348
5349
5350
5351
5352
5353
5354
5355
5356
5357
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
5373
5374
5375
5376
5377
5378
5379
5380
5381
5382
5383
5384
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
5426
5427
5428
5429
5430
5431
5432
5433
5434
5435
5436
5437
5438
5439
5440
5441
5442
5443
5444
5445
5446
5447
5448
5449
5450
5451
5452
5453
5454
5455
5456
5457
5458
5459
5460
5461
5462
5463
5464
5465
5466
5467
5468
5469
5470
5471
5472
5473
5474
5475
5476
5477
5478
5479
5480
5481
5482
5483
5484
5485
5486
5487
5488
5489
5490
5491
5492
5493
5494
5495
5496
5497
5498
5499
5500
5501
5502
5503
5504
5505
5506
5507
5508
5509
5510
5511
5512
5513
5514
5515
5516
5517
5518
5519
5520
5521
5522
5523
5524
5525
5526
5527
5528
5529
5530
5531
5532
5533
5534
5535
5536
5537
5538
5539
5540
5541
5542
5543
5544
5545
5546
5547
5548
5549
5550
5551
5552
5553
5554
5555
5556
5557
5558
5559
5560
5561
5562
5563
5564
5565
5566
5567
5568
5569
5570
5571
5572
5573
5574
5575
5576
5577
5578
5579
5580
5581
5582
5583
5584
5585
5586
5587
5588
5589
5590
5591
5592
5593
5594
5595
5596
5597
5598
5599
5600
5601
5602
5603
5604
5605
5606
5607
5608
5609
5610
5611
5612
5613
5614
5615
5616
5617
5618
5619
5620
5621
5622
5623
5624
5625
5626
5627
5628
5629
5630
5631
5632
5633
5634
5635
5636
5637
5638
5639
5640
5641
5642
5643
5644
5645
5646
5647
5648
5649
5650
5651
5652
5653
5654
5655
5656
5657
5658
5659
5660
5661
5662
5663
5664
5665
5666
5667
5668
5669
5670
5671
5672
5673
5674
5675
5676
5677
5678
5679
5680
5681
5682
5683
5684
5685
5686
5687
5688
5689
5690
5691
5692
5693
5694
5695
5696
5697
5698
5699
5700
5701
5702
5703
5704
5705
5706
5707
5708
5709
5710
5711
5712
5713
5714
5715
5716
5717
5718
5719
5720
5721
5722
5723
5724
5725
5726
5727
5728
5729
5730
5731
5732
5733
5734
5735
5736
5737
5738
5739
5740
5741
5742
5743
5744
5745
5746
5747
5748
5749
5750
5751
5752
5753
5754
5755
5756
5757
5758
5759
5760
5761
5762
5763
5764
5765
5766
5767
5768
5769
5770
5771
5772
5773
5774
5775
5776
5777
5778
5779
5780
5781
5782
5783
5784
5785
5786
5787
5788
5789
5790
5791
5792
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
5804
5805
5806
5807
5808
5809
5810
5811
5812
5813
5814
5815
5816
5817
5818
5819
5820
5821
5822
5823
5824
5825
5826
5827
5828
5829
5830
5831
5832
5833
5834
5835
5836
5837
5838
5839
5840
5841
5842
5843
5844
5845
5846
5847
5848
5849
5850
5851
5852
5853
5854
5855
5856
5857
5858
5859
5860
5861
5862
5863
5864
5865
5866
5867
5868
5869
5870
5871
5872
5873
5874
5875
5876
5877
5878
5879
5880
5881
5882
5883
5884
5885
5886
5887
5888
5889
5890
5891
5892
5893
5894
5895
5896
5897
5898
5899
5900
5901
5902
5903
5904
5905
5906
5907
5908
5909
5910
5911
5912
5913
5914
5915
5916
5917
5918
5919
5920
5921
5922
5923
5924
5925
5926
5927
5928
5929
5930
5931
5932
5933
5934
5935
5936
5937
5938
5939
5940
5941
5942
5943
5944
5945
5946
5947
5948
5949
5950
5951
5952
5953
5954
5955
5956
5957
5958
5959
5960
5961
5962
5963
5964
5965
5966
5967
5968
5969
5970
5971
5972
5973
5974
5975
5976
5977
5978
5979
5980
5981
5982
5983
5984
5985
5986
5987
5988
5989
5990
5991
5992
5993
5994
5995
5996
5997
5998
5999
6000
6001
6002
6003
6004
6005
6006
6007
6008
6009
6010
6011
6012
6013
6014
6015
6016
6017
6018
6019
6020
6021
6022
6023
6024
6025
6026
6027
6028
6029
6030
6031
6032
6033
6034
6035
6036
6037
6038
6039
6040
6041
6042
6043
6044
6045
6046
6047
6048
6049
6050
6051
6052
6053
6054
6055
6056
6057
6058
6059
6060
6061
6062
6063
6064
6065
6066
6067
6068
6069
6070
6071
6072
6073
6074
6075
6076
6077
6078
6079
6080
6081
6082
6083
6084
6085
6086
6087
6088
6089
6090
6091
6092
6093
6094
6095
6096
6097
6098
6099
6100
6101
6102
6103
6104
6105
6106
6107
6108
6109
6110
 
\input texinfo  @c -*-texinfo-*-
@c %**start of header
@setfilename ../../info/reftex.info
@settitle RefTeX User Manual
@include docstyle.texi
@synindex ky cp
@syncodeindex vr cp
@syncodeindex fn cp

@ifnottex
@macro RefTeX {}
Ref@TeX{}
@end macro
@macro AUCTeX {}
AUC@TeX{}
@end macro
@macro BibTeX {}
Bib@TeX{}
@end macro
@macro ConTeXt {}
Con@TeX{}t
@end macro
@end ifnottex
@tex
\gdef\RefTeX{Ref\TeX}
\gdef\AUCTeX{AUC\TeX}
\gdef\BibTeX{Bib\TeX}
\gdef\ConTeXt{Con\TeX t}
@end tex

@include emacsver.texi

@set VERSION @value{EMACSVER}
@set AUCTEXSITE @uref{https://www.gnu.org/software/auctex/,@AUCTeX{} web site}
@set MAINTAINERSITE @uref{https://www.gnu.org/software/auctex/reftex.html,@RefTeX{} web page}
@set MAINTAINERCONTACT @uref{mailto:auctex-devel@@gnu.org,contact the maintainers}
@set MAINTAINER the @AUCTeX{} project
@set SUPPORTADDRESS @AUCTeX{} user mailing list (@email{auctex@@gnu.org})
@set DEVELADDRESS @AUCTeX{} developer mailing list (@email{auctex-devel@@gnu.org})
@set BUGADDRESS @AUCTeX{} bug mailing list (@email{bug-auctex@@gnu.org})
@set XEMACSFTP @uref{ftp://ftp.xemacs.org/pub/xemacs/packages/,XEmacs FTP site}
@c %**end of header

@copying
This manual documents @RefTeX{} (version @value{VERSION}), a package
to do labels, references, citations and indices for LaTeX documents
with Emacs.

Copyright @copyright{} 1997--2020 Free Software Foundation, Inc.

@quotation
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with no
Invariant Sections, with the Front-Cover Texts being ``A GNU Manual'',
and with the Back-Cover Texts as in (a) below.  A copy of the license
is included in the section entitled ``GNU Free Documentation License''.

(a) The FSF's Back-Cover Text is: ``You have the freedom to copy and
modify this GNU manual.''
@end quotation
@end copying

@dircategory Emacs misc features
@direntry
* RefTeX: (reftex).             Emacs support for LaTeX cross-references
                                  and citations.
@end direntry

@finalout

@c Macro definitions

@c Subheadings inside a table.  Need a difference between info and the rest.
@macro tablesubheading{text}
@ifinfo
@subsubheading \text\
@end ifinfo
@ifnotinfo
@item @b{\text\}
@end ifnotinfo
@end macro

@titlepage
@title @RefTeX{} User Manual
@subtitle Support for @LaTeX{} labels, references, citations and index entries with GNU Emacs
@subtitle Version @value{VERSION}

@author by Carsten Dominik
@page
@vskip 0pt plus 1filll
@insertcopying
@end titlepage

@summarycontents
@contents

@ifnottex
@node Top
@top @RefTeX{}

@insertcopying

@RefTeX{} is a package for managing Labels, References, Citations and
index entries with GNU Emacs.

This manual documents @RefTeX{} version @value{VERSION}.

Don't be discouraged by the size of this manual, which covers @RefTeX{}
in great depth.  All you need to know to use @RefTeX{} can be summarized
on two pages (@pxref{RefTeX in a Nutshell}).  You can go back later to
other parts of this document when needed.

@menu
* Introduction::                     Quick-Start information.

* Table of Contents::                A Tool to move around quickly.
* Labels and References::            Creating and referencing labels.
* Citations::                        Creating Citations.
* Index Support::                    Creating and Checking Index Entries.
* Viewing Cross-References::         Who references or cites what?

* RefTeXs Menu::                     The Ref menu in the menubar.
* Key Bindings::                      The default key bindings.
* Faces::                            Fontification of RefTeX's buffers.
* Multifile Documents::              Document spread over many files.
* Language Support::                 How to support other languages.
* Finding Files::                    Included @TeX{} files and @BibTeX{} .bib files.
* Optimizations::                    When RefTeX is too slow.
* AUCTeX::                           Cooperation with @AUCTeX{}.
* Problems and Work-Arounds::        First Aid.
* Imprint::                          Author, Web-site, Thanks

* Commands::                         Which are the available commands.
* Options::                          How to extend and configure RefTeX.
* Changes::                          A List of recent changes to RefTeX.
* GNU Free Documentation License::   The license for this documentation.

The Index

* Index::                            The full index.

@detailmenu
 --- The Detailed Node Listing ---

Introduction

* Installation::                     How to install and activate RefTeX.
* RefTeX in a Nutshell::             A brief summary and quick guide.

Labels and References

* Creating Labels::
* Referencing Labels::
* Builtin Label Environments::       The environments RefTeX knows about.
* Defining Label Environments::        ... and environments it doesn't.
* Reference Info::                   View the label corresponding to a \ref.
* Reference Styles::                 Macros to be used instead of \ref.
* LaTeX xr Package::                 References to external documents.

Defining Label Environments

* Theorem and Axiom::                Defined with @code{\newenvironment}.
* Quick Equation::                   When a macro sets the label type.
* Figure Wrapper::                   When a macro argument is a label.
* Adding Magic Words::               Other words for other languages.
* Using \eqref::                     How to switch to this AMS-LaTeX macro.
* Non-Standard Environments::        Environments without \begin and \end
* Putting it Together::              How to combine many entries.

Citations

* Creating Citations::               How to create them.
* Citation Styles::                  Natbib, Harvard, Chicago and Co.
* Citation Info::                    View the corresponding database entry.
* Chapterbib and Bibunits::          Multiple bibliographies in a Document.
* Citations Outside LaTeX::          How to make citations in Emails etc.
* BibTeX Database Subsets::          Extract parts of a big database.

Index Support

* Creating Index Entries::           Macros and completion of entries.
* The Index Phrases File::           A special file for global indexing.
* Displaying and Editing the Index:: The index editor.
* Builtin Index Macros::             The index macros RefTeX knows about.
* Defining Index Macros::                ... and macros it  doesn't.

The Index Phrases File

* Collecting Phrases::               Collecting from document or external.
* Consistency Checks::               Check for duplicates etc.
* Global Indexing::                  The interactive indexing process.

AUCTeX

* AUCTeX-RefTeX Interface::          How both packages work together
* Style Files::                      @AUCTeX{}'s style files can support RefTeX
* Bib-Cite::                         Hypertext reading of a document

Options, Keymaps, Hooks

* Options - Table of Contents::
* Options - Defining Label Environments::
* Options - Creating Labels::
* Options - Referencing Labels::
* Options - Creating Citations::
* Options - Index Support::
* Options - Viewing Cross-References::
* Options - Finding Files::
* Options - Optimizations::
* Options - Fontification::
* Options - Misc::

@end detailmenu
@end menu

@end ifnottex

@node Introduction
@chapter Introduction
@cindex Introduction

@RefTeX{} is a specialized package for support of labels, references,
citations, and the index in @LaTeX{}.  @RefTeX{} wraps itself round four
@LaTeX{} macros: @code{\label}, @code{\ref}, @code{\cite}, and
@code{\index}.  Using these macros usually requires looking up different
parts of the document and searching through @BibTeX{} database files.
@RefTeX{} automates these time-consuming tasks almost entirely.  It also
provides functions to display the structure of a document and to move
around in this structure quickly.

@iftex
Don't be discouraged by the size of this manual, which covers @RefTeX{}
in great depth.  All you need to know to use @RefTeX{} can be
summarized on two pages (@pxref{RefTeX in a Nutshell}).  You can go
back later to other parts of this document when needed.
@end iftex

@xref{Imprint}, for information about who to contact for help, bug
reports or suggestions.

@menu
* Installation::                     How to install and activate RefTeX.
* RefTeX in a Nutshell::             A brief summary and quick guide.
@end menu

@node Installation
@section Installation
@cindex Installation

@RefTeX{} has been bundled and pre-installed with Emacs since
version 20.2.  It has also been bundled and pre-installed with XEmacs
19.16--20.x.  XEmacs 21.x users want to install the corresponding
plug-in package which is available from the @value{XEMACSFTP}.  See the
XEmacs 21.x documentation on package installation for details.

Users of earlier Emacs distributions (including Emacs 19) or people
craving for new features and bugs can get a copy of the @RefTeX{}
distribution from the maintainer's web page.  @xref{Imprint}, for more
information.  The following instructions will guide you through the
process of installing such a distribution.

@subsection Building and Installing

Note: Currently installation is supported for Emacs only.  XEmacs users
might want to refer to the @RefTeX{} package available through the
package system of XEmacs.

@subsubheading Installation with make

In order to install RefTeX, unpack the distribution and edit the header
of the Makefile.  Basically, you need to change the path specifications
for Emacs Lisp files and info files.  Also, enter the name of your Emacs
executable (usually either @samp{emacs} or @samp{xemacs}).

Then, type

@example
make
make install
@end example

to compile and install the code and documentation.

Per default @RefTeX{} is installed in its own subdirectory which might
not be on your load path.  In this case, add it to load path with a
command like the following, replacing the sample directory with the one
where @RefTeX{} is installed in your case.

@example
(add-to-list 'load-path "/path/to/reftex")
@end example

Put this command into your init file before other @RefTeX{}-related
settings.

@subsubheading Installation by Hand

If you want to get your hands dirty, there is also the possibility to
install by manually copying files.

@enumerate a
@item
Copy the reftex*.el lisp files to a directory on your load path.  Make
sure that no old copy of @RefTeX{} shadows these files.
@item
Byte compile the files.  The sequence of compiling should be:
reftex-var.el, reftex.el, and then all the others.
@item
Copy the info file reftex.info to the info directory.
@end enumerate

@subsection Loading @RefTeX{}

In order to make the most important functions for entering @RefTeX{}
mode available add the following line to your init file.

@example
(require 'reftex)
@end example

@subsection Entering @RefTeX{} Mode

@findex turn-on-reftex
@findex reftex-mode
@vindex LaTeX-mode-hook
@vindex latex-mode-hook
To turn @RefTeX{} Mode on and off in a particular buffer, use
@kbd{M-x reftex-mode @key{RET}}.  To turn on @RefTeX{} Mode for all
LaTeX files, add the following lines to your @file{.emacs} file:

@example
(add-hook 'LaTeX-mode-hook 'turn-on-reftex)   ; with AUCTeX LaTeX mode
(add-hook 'latex-mode-hook 'turn-on-reftex)   ; with Emacs latex mode
@end example

That's all!

To get started, read the documentation, in particular the
summary. (@pxref{RefTeX in a Nutshell})

In order to produce a printed version of the documentation, use
@code{make pdf} to produce a reftex.pdf file.  Analogously you can use
the @code{dvi}, @code{ps}, or @code{html} targets to create DVI,
PostScript or HTML files.

@subsection Environment
@cindex Finding files
@cindex BibTeX database files, not found
@cindex TeX files, not found
@cindex @code{TEXINPUTS}, environment variable
@cindex @code{BIBINPUTS}, environment variable

@RefTeX{} needs to access all files which are part of a multifile
document, and the BibTeX database files requested by the
@code{\bibliography} command.  To find these files, @RefTeX{} will
require a search path, i.e., a list of directories to check.  Normally
this list is stored in the environment variables @code{TEXINPUTS} and
@code{BIBINPUTS} which are also used by @RefTeX{}.  However, on some
systems these variables do not contain the full search path.  If
@RefTeX{} does not work for you because it cannot find some files,
@xref{Finding Files}.

@page
@node RefTeX in a Nutshell
@section @RefTeX{} in a Nutshell
@cindex Quick-Start
@cindex Getting Started
@cindex RefTeX in a Nutshell
@cindex Nutshell, RefTeX in a

@enumerate
@item
@b{Table of Contents}@* Typing @kbd{C-c =} (@code{reftex-toc}) will show
a table of contents of the document.  This buffer can display sections,
labels and index entries defined in the document.  From the buffer, you
can jump quickly to every part of your document.  Press @kbd{?} to get
help.

@item
@b{Labels and References}@* @RefTeX{} helps to create unique labels
and to find the correct key for references quickly.  It distinguishes
labels for different environments, knows about all standard
environments (and many others), and can be configured to recognize any
additional labeled environments you have defined yourself (variable
@code{reftex-label-alist}).

@itemize @bullet
@item
@b{Creating Labels}@*
Type @kbd{C-c (} (@code{reftex-label}) to insert a label at point.
@RefTeX{} will either
@itemize @minus
@item
derive a label from context (default for section labels)
@item
prompt for a label string (default for figures and tables) or
@item
insert a simple label made of a prefix and a number (all other
environments)
@end itemize
@noindent
Which labels are created how is configurable with the variable
@code{reftex-insert-label-flags}.

@item
@b{Referencing Labels}@* To make a reference, type @kbd{C-c )}
(@code{reftex-reference}).  This shows an outline of the document with
all labels of a certain type (figure, equation,...) and some label
context.  Selecting a label inserts a @code{\ref@{@var{label}@}} macro
into the original buffer.
@end itemize

@item
@b{Citations}@*
Typing @kbd{C-c [} (@code{reftex-citation}) will let you specify a
regular expression to search in current @BibTeX{} database files (as
specified in the @code{\bibliography} command) and pull out a list of
matches for you to choose from.  The list is @emph{formatted} and
sorted.  The selected article is referenced as @samp{\cite@{@var{key}@}}
(see the variable @code{reftex-cite-format} if you want to insert
different macros).

@item
@b{Index Support}@*
@RefTeX{} helps to enter index entries.  It also compiles all
entries into an alphabetically sorted @file{*Index*} buffer which you
can use to check and edit the entries.  @RefTeX{} knows about the
standard index macros and can be configured to recognize any additional
macros you have defined (@code{reftex-index-macros}).  Multiple indices
are supported.

@itemize @bullet
@item
@b{Creating Index Entries}@*
To index the current selection or the word at point, type @kbd{C-c /}
(@code{reftex-index-selection-or-word}).  The default macro
@code{reftex-index-default-macro} will be used.  For a more complex entry
type @kbd{C-c <} (@code{reftex-index}), select any of the index macros
and enter the arguments with completion.

@item
@b{The Index Phrases File (Delayed Indexing)}@*
Type @kbd{C-c \} (@code{reftex-index-phrase-selection-or-word}) to add
the current word or selection to a special @emph{index phrase file}.
@RefTeX{} can later search the document for occurrences of these
phrases and let you interactively index the matches.

@item
@b{Displaying and Editing the Index}@*
To display the compiled index in a special buffer, type @kbd{C-c >}
(@code{reftex-display-index}).  From that buffer you can check and edit
all entries.
@end itemize

@page
@item @b{Viewing Cross-References}@*
When point is on the @var{key} argument of a cross-referencing macro
(@code{\label}, @code{\ref}, @code{\cite}, @code{\bibitem},
@code{\index}, and variations) or inside a @BibTeX{} database entry, you
can press @kbd{C-c &} (@code{reftex-view-crossref}) to display
corresponding locations in the document and associated @BibTeX{} database
files. @*
When the enclosing macro is @code{\cite} or @code{\ref} and no other
message occupies the echo area, information about the citation or label
will automatically be displayed in the echo area.

@item
@b{Multifile Documents}@*
Multifile Documents are fully supported.  The included files must have a
file variable @code{TeX-master} or @code{tex-main-file} pointing to the
master file.  @RefTeX{} provides cross-referencing information from
all parts of the document, and across document borders
(@file{xr.sty}).

@item
@b{Document Parsing}@* @RefTeX{} needs to parse the document in
order to find labels and other information.  It does it automatically
once and updates its list internally when @code{reftex-label} and
@code{reftex-index} are used.  To enforce reparsing, call any of the
commands described above with a raw @kbd{C-u} prefix, or press the
@kbd{r} key in the label selection buffer, the table of contents
buffer, or the index buffer.

@item
@b{@AUCTeX{}} @* If your major @LaTeX{} mode is @AUCTeX{}, @RefTeX{} can
cooperate with it (see variable @code{reftex-plug-into-AUCTeX}).  @AUCTeX{}
contains style files which trigger appropriate settings in
@RefTeX{}, so that for many of the popular @LaTeX{} packages no
additional customizations will be necessary.

@item
@b{Useful Settings}@*
To integrate RefTeX with @AUCTeX{}, use
@lisp
(setq reftex-plug-into-AUCTeX t)
@end lisp

To make your own @LaTeX{} macro definitions known to @RefTeX{},
customize the variables
@example
@code{reftex-label-alist}          @r{(for label macros/environments)}
@code{reftex-section-levels}       @r{(for sectioning commands)}
@code{reftex-cite-format}          @r{(for @code{\cite}-like macros)}
@code{reftex-index-macros}         @r{(for @code{\index}-like macros)}
@code{reftex-index-default-macro}  @r{(to set the default macro)}
@end example
If you have a large number of macros defined, you may want to write
an @AUCTeX{} style file to support them with both @AUCTeX{} and
@RefTeX{}.

@item @b{Where Next?}@* Go ahead and use @RefTeX{}.  Use its menus
until you have picked up the key bindings.  For an overview of what you
can do in each of the different special buffers, press @kbd{?}.  Read
the manual if you get stuck, or if you are curious what else might be
available.  The first part of the manual explains in
a tutorial way how to use and customize @RefTeX{}.  The second
part is a command and variable reference.
@end enumerate

@node Table of Contents
@chapter Table of Contents
@cindex @file{*toc*} buffer
@cindex Structure editing
@cindex Table of contents buffer
@findex reftex-toc
@kindex C-c =

Pressing the keys @kbd{C-c =} pops up a buffer showing the table of
contents of the document.  By default, this @file{*toc*} buffer shows
only the sections of a document.  Using the @kbd{l} and @kbd{i} keys you
can display all labels and index entries defined in the document as
well.

With the cursor in any of the lines denoting a location in the
document, simple key strokes will display the corresponding part in
another window, jump to that location, or perform other actions.

@kindex ?
Here is a list of special commands in the @file{*toc*} buffer.  A
summary of this information is always available by pressing
@kbd{?}.

@table @kbd

@tablesubheading{General}
@item ?
Display a summary of commands.

@item 0-9, -
Prefix argument.

@tablesubheading{Moving around}
@item n
Goto next entry in the table of contents.

@item p
Goto previous entry in the table of contents.

@item C-c C-n
Goto next section heading.  Useful when many labels and index entries
separate section headings.

@item C-c C-p
Goto previous section heading.

@item N z
Jump to section N, using the prefix arg.  For example, @kbd{3 z} jumps
to section 3.

@tablesubheading{Access to document locations}
@item @key{SPC}
Show the corresponding location in another window.  This command does
@emph{not} select that other window.

@item @key{TAB}
Goto the location in another window.

@item @key{RET}
Go to the location and hide the @file{*toc*} buffer.  This will restore
the window configuration before @code{reftex-toc} (@kbd{C-c =}) was
called.

@item mouse-2
@vindex reftex-highlight-selection
Clicking with mouse button 2 on a line has the same effect as @key{RET}.
See also variable @code{reftex-highlight-selection},
@ref{Options - Fontification}.

@item f
@vindex reftex-toc-follow-mode
@vindex reftex-revisit-to-follow
Toggle follow mode.  When follow mode is active, the other window will
always show the location corresponding to the line at point in the
@file{*toc*} buffer.  This is similar to pressing @key{SPC} after each
cursor motion.  The default for this flag can be set with the variable
@code{reftex-toc-follow-mode}.  Note that only context in files already
visited is shown.  @RefTeX{} will not visit a file just for follow
mode.  See, however, the variable
@code{reftex-revisit-to-follow}.

@item .
Show calling point in another window.  This is the point from where
@code{reftex-toc} was last called.

@page
@tablesubheading{Promotion and Demotion}

@item <
Promote the current section.  This will convert @code{\section} to
@code{\chapter}, @code{\subsection} to @code{\section} etc.  If there is
an active region, all sections in the region will be promoted, including
the one at point.  To avoid mistakes, @RefTeX{} requires a fresh
document scan before executing this command; if necessary, it will
automatically do this scan and ask the user to repeat the promotion
command.

@item >
Demote the current section.  This is the opposite of promotion.  It will
convert @code{\chapter} to @code{\section} etc.  If there is an active
region, all sections in the region will be demoted, including the one at
point.

@item M-%
Rename the label at point.  While generally not recommended, this can be
useful when a package like @file{fancyref} is used where the label
prefix determines the wording of a reference.  After a
promotion/demotion it may be necessary to change a few labels from
@samp{sec:xyz} to @samp{cha:xyz} or vice versa.  This command can be
used to do this; it launches a query replace to rename the definition
and all references of a label.

@tablesubheading{Exiting}
@item q
Hide the @file{*toc*} buffer, return to the position where
@code{reftex-toc} was last called.

@item k
Kill the @file{*toc*} buffer, return to the position where
@code{reftex-toc} was last called.

@item C-c >
Switch to the @file{*Index*} buffer of this document.  With prefix
@samp{2}, restrict the index to the section at point in the @file{*toc*}
buffer.

@tablesubheading{Controlling what gets displayed}

@item t
@vindex reftex-toc-max-level
Change the maximum level of toc entries displayed in the @file{*toc*}
buffer.  Without prefix arg, all levels will be included.  With prefix
arg (e.g., @kbd{3 t}), ignore all toc entries with level greater than
@var{arg} (3 in this case).  Chapters are level 1, sections are level 2.
The mode line @samp{T<>} indicator shows the current value.  The default
depth can be configured with the variable
@code{reftex-toc-max-level}.

@item F
@vindex reftex-toc-include-file-boundaries
Toggle the display of the file borders of a multifile document in the
@file{*toc*} buffer.  The default for this flag can be set with the
variable @code{reftex-toc-include-file-boundaries}.

@item l
@vindex reftex-toc-include-labels
Toggle the display of labels in the @file{*toc*} buffer.  The default
for this flag can be set with the variable
@code{reftex-toc-include-labels}.  When called with a prefix argument,
@RefTeX{} will prompt for a label type and include only labels of
the selected type in the @file{*toc*} buffer.  The mode line @samp{L<>}
indicator shows which labels are included.

@item i
@vindex reftex-toc-include-index-entries
Toggle the display of index entries in the @file{*toc*} buffer.  The
default for this flag can be set with the variable
@code{reftex-toc-include-index-entries}.  When called with a prefix
argument, @RefTeX{} will prompt for a specific index and include
only entries in the selected index in the @file{*toc*} buffer.  The mode
line @samp{I<>} indicator shows which index is used.

@item c
@vindex reftex-toc-include-context
Toggle the display of label and index context in the @file{*toc*}
buffer.  The default for this flag can be set with the variable
@code{reftex-toc-include-context}.

@tablesubheading{Updating the buffer}

@item g
Rebuild the @file{*toc*} buffer.  This does @emph{not} rescan the
document.

@item r
@vindex reftex-enable-partial-scans
Reparse the @LaTeX{} document and rebuild the @file{*toc*} buffer.  When
@code{reftex-enable-partial-scans} is non-@code{nil}, rescan only the file this
location is defined in, not the entire document.

@item C-u r
Reparse the @emph{entire} @LaTeX{} document and rebuild the @file{*toc*}
buffer.

@item x
Switch to the @file{*toc*} buffer of an external document.  When the
current document is using the @code{xr} package (@pxref{LaTeX xr Package}),
@RefTeX{} will switch to one of the external documents.


@tablesubheading{Automatic recentering}

@item d
Toggle the display of a dedicated frame displaying just the @file{*toc*}
buffer.  Follow mode and visiting locations will not work that frame,
but automatic recentering will make this frame always show your current
editing location in the document (see below).

@item a
Toggle the automatic recentering of the @file{*toc*} buffer.  When this
option is on, moving around in the document will cause the @file{*toc*}
to always highlight the current section.  By default, this option is
active while the dedicated @file{*TOC*} frame exists.  See also the
variable @code{reftex-auto-recenter-toc}.

@end table

@vindex reftex-toc-map
In order to define additional commands for the @file{*toc*} buffer, the
keymap @code{reftex-toc-map} may be used.

@findex reftex-toc-recenter
@vindex reftex-auto-recenter-toc
@vindex reftex-idle-time
@cindex @file{*toc*} buffer, recentering
@cindex Table of contents buffer, recentering
@kindex C-c -
If you call @code{reftex-toc} while the @file{*toc*} buffer already
exists, the cursor will immediately jump to the right place, i.e., the
section from which @code{reftex-toc} was called will be highlighted.
The command @kbd{C-c -} (@code{reftex-toc-recenter}) will only redisplay
the @file{*toc*} buffer and highlight the correct line without actually
selecting the @file{*toc*} window.  This can be useful to quickly find
out where in the document you currently are.  You can also automate this
by asking RefTeX to keep track of your current editing position in the
TOC@.  The TOC window will then be updated whenever you stop typing for
more than @code{reftex-idle-time} seconds.  By default this works only
with the dedicated @file{*TOC*} frame.  But you can also force automatic
recentering of the TOC window on the current frame with
@lisp
(setq reftex-auto-recenter-toc t)
@end lisp


@cindex Sectioning commands
@cindex KOMA-Script, LaTeX classes
@cindex LaTeX classes, KOMA-Script
@cindex TOC entries for environments
@vindex reftex-section-levels
The section macros recognized by @RefTeX{} are all @LaTeX{} section
macros (from @code{\part} to @code{\subsubparagraph}) and the commands
@code{\addchap} and @code{\addsec} from the KOMA-Script classes.
Additional macros can be configured with the variable
@code{reftex-section-levels}.  It is also possible to add certain @LaTeX{}
environments to the table of contents.  This is probably only useful for
theorem-like environments. @xref{Defining Label Environments}, for an
example.

@node Labels and References
@chapter Labels and References
@cindex Labels in LaTeX
@cindex References in LaTeX
@cindex Label category
@cindex Label environment
@cindex @code{\label}

@LaTeX{} provides a powerful mechanism to deal with cross-references in a
document.  When writing a document, any part of it can be marked with a
label, like @samp{\label@{mark@}}.  @LaTeX{} records the current value of a
certain counter when a label is defined.  Later references to this label
(like @samp{\ref@{mark@}}) will produce the recorded value of the
counter.

Labels can be used to mark sections, figures, tables, equations,
footnotes, items in enumerate lists etc.  @LaTeX{} is context sensitive in
doing this: A label defined in a figure environment automatically
records the figure counter, not the section counter.

Several different environments can share a common counter and therefore
a common label category.  For example labels in both @code{equation} and
@code{eqnarray} environments record the value of the same counter: the
equation counter.

@menu
* Creating Labels::
* Referencing Labels::
* Builtin Label Environments::       The environments RefTeX knows about.
* Defining Label Environments::        ... and environments it doesn't.
* Reference Info::                   View the label corresponding to a \ref.
* Reference Styles::                 Macros to be used instead of \ref.
* LaTeX xr Package::                 References to external documents.
@end menu

@node Creating Labels
@section Creating Labels
@cindex Creating labels
@cindex Labels, creating
@cindex Labels, deriving from context
@kindex C-c (
@findex reftex-label

In order to create a label in a @LaTeX{} document, press @kbd{C-c (}
(@code{reftex-label}).  Just like @LaTeX{}, @RefTeX{} is context sensitive
and will figure out the environment it currently is in and adapt the
label to that environment.  A label usually consists of a short prefix
indicating the type of the label and a unique mark.  @RefTeX{} has
three different modes to create this mark.

@enumerate
@item
@vindex reftex-translate-to-ascii-function
@vindex reftex-derive-label-parameters
@vindex reftex-label-illegal-re
@vindex reftex-abbrev-parameters
A label can be derived from context.  This means, @RefTeX{} takes
the context of the label definition and constructs a label from
that@footnote{Note that the context may contain constructs which are
invalid in labels.  @RefTeX{} will therefore strip the accent from
accented Latin-1 characters and remove everything else which is not
valid in labels.  This mechanism is safe, but may not be satisfactory
for non-western languages.  Check the following variables if you need to
change things: @code{reftex-translate-to-ascii-function},
@code{reftex-derive-label-parameters}, @code{reftex-label-illegal-re},
@code{reftex-abbrev-parameters}.}.  This works best for section labels,
where the section heading is used to construct a label.  In fact,
@RefTeX{}'s default settings use this method only for section
labels.  You will be asked to confirm the derived label, or edit
it.

@item
We may also use a simple unique number to identify a label.  This is
mostly useful for labels where it is difficult to come up with a very
good descriptive name.  @RefTeX{}'s default settings use this method
for equations, enumerate items and footnotes.  The author of @RefTeX{}
tends to write documents with many equations and finds it impossible
to come up with good names for each of them.  These simple labels are
inserted without query, and are therefore very fast.  Good descriptive
names are not really necessary as @RefTeX{} will provide context to
reference a label (@pxref{Referencing Labels}).

@item
The third method is to ask the user for a label.  This is most
useful for things which are easy to describe briefly and do not turn up
too frequently in a document.  @RefTeX{} uses this for figures and
tables.  Of course, one can enter the label directly by typing the full
@samp{\label@{mark@}}.  The advantage of using @code{reftex-label}
anyway is that @RefTeX{} will know that a new label has been defined.
It will then not be necessary to rescan the document in order to access
this label later.
@end enumerate

@vindex reftex-insert-label-flags
If you want to change the way certain labels are created, check out the
variable @code{reftex-insert-label-flags} (@pxref{Options - Creating
Labels}).

If you are using @AUCTeX{} to write your @LaTeX{} documents, you can
set it up to delegate the creation of labels to
@RefTeX{}. @xref{AUCTeX}, for more information.

@node Referencing Labels
@section Referencing Labels
@cindex Referencing labels
@cindex Labels, referencing
@cindex Selection buffer, labels
@cindex Selection process
@cindex @code{\ref}
@kindex C-c )
@findex reftex-reference

@vindex reftex-trust-label-prefix
@RefTeX{} scans the document in order to find all labels.  To make
referencing labels easier, it assigns to each label a category, the
@emph{label type} (for example section, table, figure, equation, etc.).
In order to determine the label type, @RefTeX{} parses around each label
to see in what kind of environments it is located.  You can speed up
the parsing by using type-specific prefixes for labels and configuring
the variable @code{reftex-trust-label-prefix}.

Referencing Labels is really at the heart of @RefTeX{}.  Press @kbd{C-c
)} in order to reference a label (@code{reftex-reference}).  This will
start a selection process and finally insert the complete
@samp{\ref@{label@}} into the buffer.

@vindex reftex-ref-macro-prompt
First, you can select which reference macro you want to use,
e.g., @samp{\ref} or @samp{\pageref}.  Later in the process you have
another chance to make this selection and you can therefore disable this
step by customizing @code{reftex-ref-macro-prompt} if you find it too
intrusive.  @xref{Reference Styles}.

Then, @RefTeX{} will determine the label category which is required.
Often that can be figured out from context.  For example, if you write
@samp{As shown in eq.} and then press @kbd{C-c )}, @RefTeX{} knows that
an equation label is going to be referenced.  If it cannot figure out
what label category is needed, it will query for one.

You will then be presented with a label selection menu.  This is a
special buffer which contains an outline of the document along with all
labels of the given label category.  In addition, next to the label
there will be one line of context of the label definition, which is some
text in the buffer near the label definition.  Usually this is
sufficient to identify the label.  If you are unsure about a certain
label, pressing @key{SPC} will show the label definition point in
another window.

In order to reference a label, move the cursor to the correct label and
press @key{RET}.  You can also reference several labels with a single
call to @code{reftex-reference} by marking entries with the @kbd{m}
key (see below).

@kindex ?
Here is a list of special commands in the selection buffer.  A summary
of this information is always available from the selection process by
pressing @kbd{?}.



@table @kbd
@tablesubheading{General}
@item ?
Show a summary of available commands.

@item 0-9,-
Prefix argument.

@tablesubheading{Moving around}
@item n
Go to next label.

@item p
Go to previous label.

@item b
Jump back to the position where you last left the selection buffer.
Normally this should get you back to the last referenced label.

@item C-c C-n
Goto next section heading.

@item C-c C-p
Goto previous section heading.

@item N z
Jump to section N, using the prefix arg.  For example @kbd{3 z} jumps to
section 3.

@tablesubheading{Displaying Context}
@item @key{SPC}
Show the surroundings of the definition of the current label in another
window.  See also the @kbd{f} key.

@item f
@vindex reftex-revisit-to-follow
Toggle follow mode.  When follow mode is active, the other window will
always display the full context of the current label.  This is similar
to pressing @key{SPC} after each cursor motion.  Note that only context
in files already visited is shown.  @RefTeX{} will not visit a file
just for follow mode.  See, however, the variable
@code{reftex-revisit-to-follow}.

@item .
Show insertion point in another window.  This is the point from where you
called @code{reftex-reference}.

@tablesubheading{Selecting a label and creating the reference}
@item @key{RET}
Insert a reference to the label at point into the buffer from which the
selection process was started.  When entries have been marked, @key{RET}
references all marked labels.

@item mouse-2
@vindex reftex-highlight-selection
Clicking with mouse button 2 on a label will accept it like @key{RET}
would.  See also variable @code{reftex-highlight-selection},
@ref{Options - Misc}.

@vindex reftex-multiref-punctuation
@item m - + ,
Mark the current entry.  When several entries have been marked, pressing
@kbd{RET} will accept all of them and place them into several
@code{\ref} macros.  The special markers @samp{,-+} also store a
separator to be inserted before the corresponding reference.  So marking
six entries with the keys @samp{m , , - , +} will give a reference list
like this (see the variable @code{reftex-multiref-punctuation})
@example
In eqs. (1), (2), (3)--(4), (5) and (6)
@end example

@item u
Unmark a marked entry.

@c FIXME: Do we need 'A' as well for consistency?
@cindex LaTeX packages, @code{saferef}
@cindex @code{saferef}, LaTeX package
@item a
Accept the marked entries and put all labels as a comma-separated list
into one @emph{single} @code{\ref} macro.  Some packages like
@file{saferef.sty} support multiple references in this way.

@item l
Use the last referenced label(s) again.  This is equivalent to moving to
that label and pressing @key{RET}.

@item @key{TAB}
Enter a label with completion.  This may also be a label which does not
yet exist in the document.

@item v
Cycle forward through active reference macros.  The selected macro is
displayed by the @samp{S<...>} indicator in the mode line of the
selection buffer.  This mechanism comes in handy if you are using
@LaTeX{} packages like @code{varioref} or @code{fancyref} and want to
use the special referencing macros they provide (e.g., @code{\vref} or
@code{\fref}) instead of @code{\ref}.

@item V
Cycle backward through active reference macros.

@tablesubheading{Exiting}

@item q
Exit the selection process without inserting any reference into the
buffer.

@tablesubheading{Controlling what gets displayed}
@vindex reftex-label-menu-flags
The defaults for the following flags can be configured with the variable
@code{reftex-label-menu-flags} (@pxref{Options - Referencing Labels}).

@item c
Toggle the display of the one-line label definition context in the
selection buffer.

@item F
Toggle the display of the file borders of a multifile document in the
selection buffer.

@item t
Toggle the display of the table of contents in the selection buffer.
With prefix @var{arg}, change the maximum level of toc entries displayed
to @var{arg}.  Chapters are level 1, sections are level 2.

@item #
Toggle the display of a label counter in the selection buffer.

@item %
Toggle the display of labels hidden in comments in the selection
buffers.  Sometimes, you may have commented out parts of your document.
If these parts contain label definitions, @RefTeX{} can still display
and reference these labels.

@tablesubheading{Updating the buffer}
@item g
Update the menu.  This will rebuilt the menu from the internal label
list, but not reparse the document (see @kbd{r}).

@item r
@vindex reftex-enable-partial-scans
Reparse the document to update the information on all labels and rebuild
the menu.  If the variable @code{reftex-enable-partial-scans} is
non-@code{nil} and your document is a multifile document, this will
reparse only a part of the document (the file in which the label at
point was defined).

@item C-u r
Reparse the @emph{entire} document.

@item s
Switch the label category.  After prompting for another label category,
a menu for that category will be shown.

@item x
Reference a label from an external document.  With the @LaTeX{} package
@code{xr} it is possible to reference labels defined in another
document.  This key will switch to the label menu of an external
document and let you select a label from there (@pxref{LaTeX xr Package,,xr}).

@end table

@vindex reftex-select-label-map
In order to define additional commands for the selection process, the
keymap @code{reftex-select-label-map} may be used.

@node Builtin Label Environments
@section Builtin Label Environments
@cindex Builtin label environments
@cindex Label environments, builtin
@cindex Environments, builtin
@vindex reftex-label-alist
@vindex reftex-label-alist-builtin

@RefTeX{} needs to be aware of the environments which can be referenced
with a label (i.e., which carry their own counters).  By default, @RefTeX{}
recognizes all labeled environments and macros discussed in @cite{The
@LaTeX{} Companion by Goossens, Mittelbach & Samarin, Addison-Wesley
1994.}.  These are:

@itemize @minus
@item
@cindex @code{figure}, LaTeX environment
@cindex @code{figure*}, LaTeX environment
@cindex @code{table}, LaTeX environment
@cindex @code{table*}, LaTeX environment
@cindex @code{equation}, LaTeX environment
@cindex @code{eqnarray}, LaTeX environment
@cindex @code{enumerate}, LaTeX environment
@cindex @code{\footnote}, LaTeX macro
@cindex LaTeX macro @code{footnote}
@cindex LaTeX core
@code{figure}, @code{figure*}, @code{table}, @code{table*}, @code{equation},
@code{eqnarray}, @code{enumerate}, the @code{\footnote} macro (this is
the @LaTeX{} core stuff)
@item
@cindex AMS-LaTeX
@cindex @code{amsmath}, LaTeX package
@cindex LaTeX packages, @code{amsmath}
@cindex @code{align}, AMS-LaTeX environment
@cindex @code{gather}, AMS-LaTeX environment
@cindex @code{multline}, AMS-LaTeX environment
@cindex @code{flalign}, AMS-LaTeX environment
@cindex @code{alignat}, AMS-LaTeX environment
@cindex @code{xalignat}, AMS-LaTeX environment
@cindex @code{xxalignat}, AMS-LaTeX environment
@cindex @code{subequations}, AMS-LaTeX environment
@code{align}, @code{gather}, @code{multline}, @code{flalign},
@code{alignat}, @code{xalignat}, @code{xxalignat}, @code{subequations}
(from AMS-@LaTeX{}'s @file{amsmath.sty} package)
@item
@cindex @code{endnote}, LaTeX package
@cindex LaTeX packages, @code{endnote}
@cindex @code{\endnote}, LaTeX macro
the @code{\endnote} macro (from @file{endnotes.sty})
@item
@cindex @code{fancybox}, LaTeX package
@cindex LaTeX packages, @code{fancybox}
@cindex @code{Beqnarray}, LaTeX environment
@code{Beqnarray} (@file{fancybox.sty})
@item
@cindex @code{floatfig}, LaTeX package
@cindex LaTeX packages, @code{floatfig}
@cindex @code{floatingfig}, LaTeX environment
@code{floatingfig} (@file{floatfig.sty})
@item
@cindex @code{longtable}, LaTeX package
@cindex LaTeX packages, @code{longtable}
@cindex @code{longtable}, LaTeX environment
@code{longtable} (@file{longtable.sty})
@item
@cindex @code{picinpar}, LaTeX package
@cindex LaTeX packages, @code{picinpar}
@cindex @code{figwindow}, LaTeX environment
@cindex @code{tabwindow}, LaTeX environment
@code{figwindow}, @code{tabwindow} (@file{picinpar.sty})
@item
@cindex @code{sidecap}, LaTeX package
@cindex LaTeX packages, @code{sidecap}
@cindex @code{SCfigure}, LaTeX environment
@cindex @code{SCtable}, LaTeX environment
@code{SCfigure}, @code{SCtable} (@file{sidecap.sty})
@item
@cindex @code{rotating}, LaTeX package
@cindex LaTeX packages, @code{rotating}
@cindex @code{sidewaysfigure}, LaTeX environment
@cindex @code{sidewaystable}, LaTeX environment
@code{sidewaysfigure}, @code{sidewaystable} (@file{rotating.sty})
@item
@cindex @code{subfig}, LaTeX package
@cindex LaTeX packages, @code{subfigure}
@cindex @code{subfigure}, LaTeX environment
@cindex @code{subfigure*}, LaTeX environment
@code{subfigure}, @code{subfigure*}, the @code{\subfigure} macro
(@file{subfigure.sty})
@item
@cindex @code{supertab}, LaTeX package
@cindex LaTeX packages, @code{supertab}
@cindex @code{supertabular}, LaTeX environment
@code{supertabular} (@file{supertab.sty})
@item
@cindex @code{wrapfig}, LaTeX package
@cindex LaTeX packages, @code{wrapfig}
@cindex @code{wrapfigure}, LaTeX environment
@code{wrapfigure} (@file{wrapfig.sty})
@end itemize

If you want to use other labeled environments, defined with
@code{\newtheorem}, @RefTeX{} needs to be configured to recognize
them (@pxref{Defining Label Environments}).

@node Defining Label Environments
@section Defining Label Environments
@cindex Label environments, defining

@vindex reftex-label-alist
@RefTeX{} can be configured to recognize additional labeled
environments and macros.  This is done with the variable
@code{reftex-label-alist} (@pxref{Options - Defining Label
Environments}).  If you are not familiar with Lisp, you can use the
@code{custom} library to configure this rather complex variable.  To do
this, use

@example
@kbd{M-x customize-variable @key{RET} reftex-label-alist @key{RET}}
@end example

@vindex reftex-label-alist-builtin
Here we will discuss a few examples, in order to make things clearer.
It can also be instructive to look at the constant
@code{reftex-label-alist-builtin} which contains the entries for
all the builtin environments and macros (@pxref{Builtin Label
Environments}).

@menu
* Theorem and Axiom::                Defined with @code{\newenvironment}.
* Quick Equation::                   When a macro sets the label type.
* Figure Wrapper::                   When a macro argument is a label.
* Adding Magic Words::               Other words for other languages.
* Using \eqref::                     How to switch to this AMS-@LaTeX{} macro.
* Non-Standard Environments::        Environments without \begin and \end
* Putting it Together::              How to combine many entries.
@end menu

@node Theorem and Axiom
@subsection Theorem and Axiom Environments
@cindex @code{theorem}, newtheorem
@cindex @code{axiom}, newtheorem
@cindex @code{\newtheorem}

Suppose you are using @code{\newtheorem} in @LaTeX{} in order to define two
new environments, @code{theorem} and @code{axiom}

@example
\newtheorem@{axiom@}@{Axiom@}
\newtheorem@{theorem@}@{Theorem@}
@end example

@noindent
to be used like this:

@example
\begin@{axiom@}
\label@{ax:first@}
  ....
\end@{axiom@}
@end example

So we need to tell @RefTeX{} that @code{theorem} and @code{axiom} are new
labeled environments which define their own label categories.  We can
either use Lisp to do this (e.g., in @file{.emacs}) or use the custom
library.  With Lisp it would look like this

@lisp
(setq reftex-label-alist
   '(("axiom"   ?a "ax:"  "~\\ref@{%s@}" nil ("axiom"   "ax.") -2)
     ("theorem" ?h "thr:" "~\\ref@{%s@}" t   ("theorem" "th.") -3)))
@end lisp

The type indicator characters @code{?a} and @code{?h} are used for
prompts when @RefTeX{} queries for a label type.  @code{?h}
was chosen for @code{theorem} since @code{?t} is already taken by
@code{table}.  Note that also @code{?s}, @code{?f}, @code{?e},
@code{?i}, @code{?n} are already used for standard environments.

@noindent
The labels for Axioms and Theorems will have the prefixes @samp{ax:} and
@samp{thr:}, respectively.  @xref{AUCTeX}, for information on how
@AUCTeX{} can use @RefTeX{} to automatically create labels when a new
environment is inserted into a buffer.  Additionally, the following
needs to be added to one's .emacs file before @AUCTeX{} will
automatically create labels for the new environments.

@lisp
(add-hook 'LaTeX-mode-hook
   (lambda ()
     (LaTeX-add-environments
       '("axiom" LaTeX-env-label)
       '("theorem" LaTeX-env-label))))
@end lisp


@noindent
The @samp{~\ref@{%s@}} is a format string indicating how to insert
references to these labels.

@noindent
The next item indicates how to grab context of the label definition.
@itemize @minus
@item
@code{t} means to get it from a default location (from the beginning of
a @code{\macro} or after the @code{\begin} statement).  @code{t} is
@emph{not} a good choice for eqnarray and similar environments.
@item
@code{nil} means to use the text right after the label definition.
@item
For more complex ways of getting context, see the variable
@code{reftex-label-alist} (@ref{Options - Defining Label Environments}).
@end itemize

The following list of strings is used to guess the correct label type
from the word before point when creating a reference.  For example if you
write: @samp{As we have shown in Theorem} and then press @kbd{C-c )},
@RefTeX{} will know that you are looking for a theorem label and
restrict the menu to only these labels without even asking.

The final item in each entry is the level at which the environment
should produce entries in the table of context buffer.  If the number is
positive, the environment will produce numbered entries (like
@code{\section}), if it is negative the entries will be unnumbered (like
@code{\section*}).  Use this only for environments which structure the
document similar to sectioning commands.  For everything else, omit the
item.

To do the same configuration with @code{customize}, you need to click on
the @code{[INS]} button twice to create two templates and fill them in
like this:

@example
Reftex Label Alist: [Hide]
[INS] [DEL] Package or Detailed   : [Value Menu] Detailed:
            Environment or \macro : [Value Menu] String: axiom
            Type specification    : [Value Menu] Char  : a
            Label prefix string   : [Value Menu] String: ax:
            Label reference format: [Value Menu] String: ~\ref@{%s@}
            Context method        : [Value Menu] After label
            Magic words:
              [INS] [DEL] String: axiom
              [INS] [DEL] String: ax.
              [INS]
            [X] Make TOC entry    : [Value Menu] Level: -2
[INS] [DEL] Package or Detailed   : [Value Menu] Detailed:
            Environment or \macro : [Value Menu] String: theorem
            Type specification    : [Value Menu] Char  : h
            Label prefix string   : [Value Menu] String: thr:
            Label reference format: [Value Menu] String: ~\ref@{%s@}
            Context method        : [Value Menu] Default position
            Magic words:
              [INS] [DEL] String: theorem
              [INS] [DEL] String: theor.
              [INS] [DEL] String: th.
              [INS]
            [X] Make TOC entry    : [Value Menu] Level: -3
@end example

@vindex reftex-insert-label-flags
@vindex reftex-label-menu-flags
Depending on how you would like the label insertion and selection for
the new environments to work, you might want to add the letters @samp{a}
and @samp{h} to some of the flags in the variables
@code{reftex-insert-label-flags} (@pxref{Options - Creating Labels})
and @code{reftex-label-menu-flags} (@pxref{Options - Referencing Labels}).


@node Quick Equation
@subsection Quick Equation Macro
@cindex Quick equation macro
@cindex Macros as environment wrappers

Suppose you would like to have a macro for quick equations.  It
could be defined like this:

@example
\newcommand@{\quickeq@}[1]@{\begin@{equation@} #1 \end@{equation@}@}
@end example

@noindent
and used like this:

@example
Einstein's equation is \quickeq@{E=mc^2 \label@{eq:einstein@}@}.
@end example

We need to tell @RefTeX{} that any label defined in the argument of the
@code{\quickeq} is an equation label.  Here is how to do this with lisp:

@lisp
(setq reftex-label-alist '(("\\quickeq@{@}" ?e nil nil 1 nil)))
@end lisp

The first element in this list is now the macro with empty braces as an
@emph{image} of the macro arguments.  @code{?e} indicates that this is
an equation label, the different @code{nil} elements indicate to use the
default values for equations.  The @samp{1} as the fifth element
indicates that the context of the label definition should be the first
argument of the macro.

Here is again how this would look in the customization buffer:

@example
Reftex Label Alist: [Hide]
[INS] [DEL] Package or Detailed   : [Value Menu] Detailed:
            Environment or \macro : [Value Menu] String: \quickeq@{@}
            Type specification    : [Value Menu] Char  : e
            Label prefix string   : [Value Menu] Default
            Label reference format: [Value Menu] Default
            Context method        : [Value Menu] Macro arg nr: 1
            Magic words:
              [INS]
            [ ] Make TOC entry    : [Value Menu] No entry
@end example

@node Figure Wrapper
@subsection Figure Wrapping Macro
@cindex Macros as environment wrappers
@cindex Figure wrapping macro

Suppose you want to make figures not directly with the figure
environment, but with a macro like

@example
\newcommand@{\myfig@}[5][tbp]@{%
  \begin@{figure@}[#1]
    \epsimp[#5]@{#2@}
    \caption@{#3@}
    \label@{#4@}
  \end@{figure@}@}
@end example

@noindent
which would be called like

@example
\myfig[htp]@{filename@}@{caption text@}@{label@}@{1@}
@end example

Now we need to tell @RefTeX{} that the fourth argument of the
@code{\myfig} macro @emph{is itself} a figure label, and where to find
the context.

@lisp
(setq reftex-label-alist
      '(("\\myfig[]@{@}@{@}@{*@}@{@}" ?f nil nil 3)))
@end lisp

The empty pairs of brackets indicate the different arguments of the
@code{\myfig} macro. The @samp{*} marks the label argument.  @code{?f}
indicates that this is a figure label which will be listed together with
labels from normal figure environments.  The @code{nil} entries for
prefix and reference format mean to use the defaults for figure labels.
The @samp{3} for the context method means to grab the third macro argument:
the caption.

As a side effect of this configuration, @code{reftex-label} will now
insert the required naked label (without the @code{\label} macro) when
point is directly after the opening parenthesis of a @code{\myfig} macro
argument.

Again, here the configuration in the customization buffer:

@example
[INS] [DEL] Package or Detailed   : [Value Menu] Detailed:
            Environment or \macro : [Value Menu] String: \myfig[]@{@}@{@}@{*@}@{@}
            Type specification    : [Value Menu] Char  : f
            Label prefix string   : [Value Menu] Default
            Label reference format: [Value Menu] Default
            Context method        : [Value Menu] Macro arg nr: 3
            Magic words:
              [INS]
            [ ] Make TOC entry    : [Value Menu] No entry
@end example

@node Adding Magic Words
@subsection Adding Magic Words
@cindex Magic words
@cindex German magic words
@cindex Label category

Sometimes you don't want to define a new label environment or macro, but
just change the information associated with a label category.  Maybe you
want to add some magic words, for another language.  Changing only the
information associated with a label category is done by giving
@code{nil} for the environment name and then specify the items you want
to define.  Here is an example which adds German magic words to all
predefined label categories.

@lisp
(setq reftex-label-alist
  '((nil ?s nil nil nil ("Kapitel" "Kap." "Abschnitt" "Teil"))
    (nil ?e nil nil nil ("Gleichung" "Gl."))
    (nil ?t nil nil nil ("Tabelle"))
    (nil ?f nil nil nil ("Figur" "Abbildung" "Abb."))
    (nil ?n nil nil nil ("Anmerkung" "Anm."))
    (nil ?i nil nil nil ("Punkt"))))
@end lisp

@node Using \eqref
@subsection Using @code{\eqref}
@cindex @code{\eqref}, AMS-LaTeX macro
@cindex AMS-LaTeX
@cindex Label category

Another case where one only wants to change the information associated
with the label category is to change the macro which is used for
referencing the label.  When working with the AMS-@LaTeX{}, you might
prefer @code{\eqref} for doing equation references.  Here is how to
do this:

@lisp
(setq reftex-label-alist '((nil ?e nil "~\\eqref@{%s@}" nil nil)))
@end lisp

@RefTeX{} has also a predefined symbol for this special purpose.  The
following is equivalent to the line above.

@lisp
(setq reftex-label-alist '(AMSTeX))
@end lisp

Note that this is automatically done by the @file{amsmath.el} style file
of @AUCTeX{} (@pxref{Style Files}); so if you use @AUCTeX{},
this configuration will not be necessary.

@node Non-Standard Environments
@subsection Non-standard Environments
@cindex Non-standard environments
@cindex Environments without @code{\begin}
@cindex Special parser functions
@cindex Parser functions, for special environments

Some @LaTeX{} packages define environment-like structures without using the
standard @samp{\begin..\end} structure.  @RefTeX{} cannot parse
these directly, but you can write your own special-purpose parser and
use it instead of the name of an environment in an entry for
@code{reftex-label-alist}.  The function should check if point is
currently in the special environment it was written to detect.  If so,
it must return a buffer position indicating the start of this
environment.  The return value must be @code{nil} on failure to detect
the environment.  The function is called with one argument @var{bound}.
If non-@code{nil}, @var{bound} is a boundary for backwards searches
which should be observed.  We will discuss two examples.

@cindex LaTeX commands, abbreviated

Some people define abbreviations for
environments, like @code{\be} for @code{\begin@{equation@}}, and
@code{\ee} for @code{\end@{equation@}}.  The parser function would have
to search backward for these macros.  When the first match is
@code{\ee}, point is not in this environment.  When the first match is
@code{\be}, point is in this environment and the function must return
the beginning of the match.  To avoid scanning too far, we can also look
for empty lines which cannot occur inside an equation environment.
Here is the setup:

@lisp
;; Setup entry in reftex-label-alist, using all defaults for equations
(setq reftex-label-alist '((detect-be-ee ?e nil nil nil nil)))

(defun detect-be-ee (bound)
  ;; Search backward for the macros or an empty line
  (if (re-search-backward
       "\\(^[ \t]*\n\\|\\\\ee\\>\\)\\|\\(\\\\be\\>\\)" bound t)
      (if (match-beginning 2)
          (match-beginning 2)  ; Return start of environment
        nil)                   ; Return nil because env is closed
    nil))                      ; Return nil for not found
@end lisp

@cindex @code{linguex}, LaTeX package
@cindex LaTeX packages, @code{linguex}
A more complex example is the @file{linguex.sty} package which defines
list macros @samp{\ex.}, @samp{\a.}, @samp{\b.} etc.@: for lists which are
terminated by @samp{\z.} or by an empty line.

@example
\ex.  \label@{ex:12@} Some text in an exotic language ...
      \a. \label@{ex:13@} more stuff
      \b. \label@{ex:14@} still more stuff
          \a. List on a deeper level
          \b. Another item
          \b. and the third one
      \z.
      \b. Third item on this level.

... text after the empty line terminating all lists
@end example

The difficulty is that the @samp{\a.} lists can nest and that an empty
line terminates all list levels in one go.  So we have to count nesting
levels between @samp{\a.} and @samp{\z.}.  Here is the implementation
for @RefTeX{}.

@lisp
(setq reftex-label-alist
      '((detect-linguex ?x "ex:" "~\\ref@{%s@}" nil ("Example" "Ex."))))

(defun detect-linguex (bound)
  (let ((cnt 0))
    (catch 'exit
      (while
          ;; Search backward for all possible delimiters
          (re-search-backward
           (concat "\\(^[ \t]*\n\\)\\|\\(\\\\z\\.\\)\\|"
                   "\\(\\ex[ig]?\\.\\)\\|\\(\\\\a\\.\\)")
           nil t)
        ;; Check which delimiter was matched.
        (cond
         ((match-beginning 1)
          ;; empty line terminates all - return nil
          (throw 'exit nil))
         ((match-beginning 2)
          ;; \z. terminates one list level - decrease nesting count
          (decf cnt))
         ((match-beginning 3)
          ;; \ex. : return match unless there was a \z. on this level
          (throw 'exit (if (>= cnt 0) (match-beginning 3) nil)))
         ((match-beginning 4)
          ;; \a. : return match when on level 0, otherwise
          ;;       increment nesting count
          (if (>= cnt 0)
              (throw 'exit (match-beginning 4))
            (incf cnt))))))))
@end lisp

@node Putting it Together
@subsection Putting it all together

When you have to put several entries into @code{reftex-label-alist}, just
put them after each other in a list, or create that many templates in
the customization buffer.  Here is a lisp example which uses several of
the entries described above:

@lisp
(setq reftex-label-alist
  '(("axiom"   ?a "ax:"  "~\\ref@{%s@}" nil ("axiom"   "ax.") -2)
    ("theorem" ?h "thr:" "~\\ref@{%s@}" t   ("theorem" "theor." "th.") -3)
    ("\\quickeq@{@}" ?e nil nil 1 nil)
    AMSTeX
    ("\\myfig[]@{@}@{@}@{*@}@{@}" ?f nil nil 3)
    (detect-linguex ?x "ex:" "~\\ref@{%s@}" nil ("Example" "Ex."))))
@end lisp

@node Reference Info
@section Reference Info
@findex reftex-view-crossref
@findex reftex-mouse-view-crossref
@cindex Cross-references, displaying
@cindex Reference info
@cindex Displaying cross-references
@cindex Viewing cross-references
@kindex C-c &
@kindex S-mouse-2

When point is idle for more than @code{reftex-idle-time} seconds on the
argument of a @code{\ref} macro, the echo area will display some
information about the label referenced there.  Note that the information
is only displayed if the echo area is not occupied by a different
message.

@RefTeX{} can also display the label definition corresponding to a
@code{\ref} macro, or all reference locations corresponding to a
@code{\label} macro.  @xref{Viewing Cross-References}, for more
information.

@node Reference Styles
@section Reference Styles

In case you defined your own macros for referencing or you are using
@LaTeX{} packages providing specialized macros to be used instead of
@code{\ref}, @RefTeX{} provides ways to select and insert them in a
convenient way.

@RefTeX{} comes equipped with a set of so-called reference styles where
each relates to one or more reference macros.  The standard macros
@samp{\ref} and @samp{\pageref} or provided by the ``Default'' style.
The ``Varioref'' style offers macros for the @samp{varioref} @LaTeX{}
package (@samp{\vref}, @samp{\Vref}, @samp{\Ref}, @samp{\vpageref}),
``Fancyref'' for the @samp{fancyref} package (@samp{\fref},
@samp{\Fref}) and ``Hyperref'' for the @samp{hyperref} package
(@samp{\autoref}, @samp{\autopageref}).

@vindex reftex-ref-style-default-list
A style can be toggled by selecting the respective entry in the
@samp{Reference Style} menu.  Changes made through the menu will only
last for the Emacs session.  In order to configure a preference
permanently, the variable @code{reftex-ref-style-default-list} should be
customized.  This variable specifies the list of styles to be activated.
It can also be set as a file variable if the preference should be set
for a specific file.

@vindex reftex-ref-style-alist
In case the built-in styles do not suffice, you can add additional
macros and styles to the variable @code{reftex-ref-style-alist}.  Those
do not necessarily have to be related to a certain @LaTeX{} package but
can follow an arbitrary grouping rule.  For example you could define a
style called ``Personal'' for your personal referencing macros.  (When
changing the variable you should be aware that other Emacs packages,
like @AUCTeX{}, might rely on the entries from the default value to be
present.)

Once a style is active the macros it relates to are available for
selection when you are about to insert a reference.  In general this
process involves three steps: the selection of a reference macro, a
label type and a label.  Reference macros can be chosen in the first and
last step.

@vindex reftex-ref-macro-prompt
In the first step you will be presented with a list of macros from which
you can select one by typing a single key.  If you dislike having an
extra step for reference macro selection, you can disable it by
customizing @code{reftex-ref-macro-prompt} and relying only on the
selection facilities provided in the last step.

In the last step, i.e., the label selection, two key bindings are
provided to set the reference macro.  Type @kbd{v} in order to cycle
forward through the list of available macros or @kbd{V} to cycle
backward.  The mode line of the selection buffer shows the macro
currently selected.

In case you are not satisfied with the order of macros when cycling
through them you should adapt the order of entries in the variable
@code{reftex-ref-style-alist} to fit your liking.

For each entry in @code{reftex-ref-style-alist} a function with the name
@code{reftex-<package>-<macro>} (e.g., @code{reftex-varioref-vref}) will
be created automatically by @RefTeX{}.  These functions can be used
instead of @kbd{C-c )} and provide an alternative way of having your
favorite referencing macro preselected and if cycling through the macros
seems inconvenient to you.@footnote{You could, e.g., bind
@code{reftex-varioref-vref} to @kbd{C-c v} and
@code{reftex-fancyref-fref} to @kbd{C-c f}.}

@cindex @code{varioref}, LaTeX package
@cindex LaTeX packages, @code{varioref}
@cindex @code{fancyref}, LaTeX package
@cindex LaTeX packages, @code{fancyref}
@vindex reftex-vref-is-default @r{(deprecated)}
@vindex reftex-fref-is-default @r{(deprecated)}
In former versions of @RefTeX{} only support for @code{varioref} and
@code{fancyref} was included.  @code{varioref} is a @LaTeX{} package to
create cross-references with page information.  @code{fancyref} is a
package where a macro call like @code{\fref@{@var{fig:map-of-germany}@}}
creates not only the number of the referenced counter but also the
complete text around it, like @samp{Figure 3 on the preceding page}.  In
order to make it work you need to use label prefixes like @samp{fig:}
consistently---something @RefTeX{} does automatically.  For each of
these packages a variable could be configured to make its macros to take
precedence over @code{\ref}.  Those were @code{reftex-vref-is-default}
and @code{reftex-fref-is-default} respectively.  While still working,
these variables are deprecated now.  Instead of setting them, the
variable @code{reftex-ref-style-default-list} should be adapted now.

@node LaTeX xr Package
@section @code{xr}: Cross-Document References
@cindex @code{xr}, LaTeX package
@cindex LaTeX packages, @code{xr}
@cindex @code{\externaldocument}
@cindex External documents
@cindex References to external documents
@cindex Cross-document references

The @LaTeX{} package @code{xr} makes it possible to create references to
labels defined in external documents.  The preamble of a document using
@code{xr} will contain something like this:

@example
\usepackage@{xr@}
\externaldocument[V1-]@{volume1@}
\externaldocument[V3-]@{volume3@}
@end example

@noindent
and we can make references to any labels defined in these
external documents by using the prefixes @samp{V1-} and @samp{V3-},
respectively.

@RefTeX{} can be used to create such references as well.  Start the
referencing process normally, by pressing @kbd{C-c )}.  Select a label
type if necessary.  When you see the label selection buffer, pressing
@kbd{x} will switch to the label selection buffer of one of the external
documents.  You may then select a label as before and @RefTeX{} will
insert it along with the required prefix.

For this kind of inter-document cross-references, saving of parsing
information and the use of multiple selection buffers can mean a large
speed-up (@pxref{Optimizations}).

@node Citations
@chapter Citations
@cindex Citations
@cindex @code{\cite}

Citations in @LaTeX{} are done with the @code{\cite} macro or variations of
it.  The argument of the macro is a citation key which identifies an
article or book in either a @BibTeX{} database file or in an explicit
@code{thebibliography} environment in the document.  @RefTeX{}'s
support for citations helps to select the correct key quickly.

@menu
* Creating Citations::               How to create them.
* Citation Styles::                  Natbib, Harvard, Chicago and Co.
* Citation Info::                    View the corresponding database entry.
* Chapterbib and Bibunits::          Multiple bibliographies in a Document.
* Citations Outside LaTeX::          How to make citations in Emails etc.
* BibTeX Database Subsets::          Extract parts of a big database.
@end menu

@node Creating Citations
@section Creating Citations
@cindex Creating citations
@cindex Citations, creating
@findex reftex-citation
@kindex C-c [
@cindex Selection buffer, citations
@cindex Selection process

In order to create a citation, press @kbd{C-c [}.  @RefTeX{} then
prompts for a regular expression which will be used to search through
the database and present the list of matches to choose from in a
selection process similar to that for selecting labels
(@pxref{Referencing Labels}).

The regular expression uses an extended syntax: @samp{&&} defines a
logic @code{and} for regular expressions. For example
@samp{Einstein&&Bose} will match all articles which mention
Bose-Einstein condensation, or which are co-authored by Bose and
Einstein.  When entering the regular expression, you can complete on
known citation keys.  @RefTeX{} also offers a default when prompting for
a regular expression.  This default is the word before the cursor or the
word before the current @samp{\cite} command.  Sometimes this may be a
good search key.

@cindex @code{\bibliography}
@cindex @code{thebibliography}, LaTeX environment
@cindex @code{BIBINPUTS}, environment variable
@cindex @code{TEXBIB}, environment variable
@RefTeX{} prefers to use @BibTeX{} database files specified with a
@code{\bibliography} macro to collect its information.  Just like
@BibTeX{}, it will search for the specified files in the current directory
and along the path given in the environment variable @code{BIBINPUTS}.
If you do not use @BibTeX{}, but the document contains an explicit
@code{thebibliography} environment, @RefTeX{} will collect its
information from there.  Note that in this case the information
presented in the selection buffer will just be a copy of relevant
@code{\bibitem} entries, not the structured listing available with
@BibTeX{} database files.

@kindex ?
In the selection buffer, the following keys provide special commands.  A
summary of this information is always available from the selection
process by pressing @kbd{?}.

@table @kbd
@tablesubheading{General}
@item ?
Show a summary of available commands.

@item 0-9,-
Prefix argument.

@tablesubheading{Moving around}
@item n
Go to next article.

@item p
Go to previous article.

@tablesubheading{Access to full database entries}
@item @key{SPC}
Show the database entry corresponding to the article at point, in
another window.  See also the @kbd{f} key.

@item f
Toggle follow mode.  When follow mode is active, the other window will
always display the full database entry of the current article.  This is
equivalent to pressing @key{SPC} after each cursor motion.  With @BibTeX{}
entries, follow mode can be rather slow.

@tablesubheading{Selecting entries and creating the citation}
@item @key{RET}
Insert a citation referencing the article at point into the buffer from
which the selection process was started.

@item mouse-2
@vindex reftex-highlight-selection
Clicking with mouse button 2 on a citation will accept it like @key{RET}
would.  See also variable @code{reftex-highlight-selection},
@ref{Options - Misc}.

@item m
Mark the current entry.  When one or several entries are marked,
pressing @kbd{a} or @kbd{A} accepts all marked entries.  Also,
@key{RET} behaves like the @kbd{a} key.

@item u
Unmark a marked entry.

@item a
Accept all (marked) entries in the selection buffer and create a single
@code{\cite} macro referring to them.

@item A
Accept all (marked) entries in the selection buffer and create a
separate @code{\cite} macro for each of it.

@item e
Create a new @BibTeX{} database file which contains all @i{marked} entries
in the selection buffer.  If no entries are marked, all entries are
selected.

@item E
Create a new @BibTeX{} database file which contains all @i{unmarked}
entries in the selection buffer.  If no entries are marked, all entries
are selected.

@item @key{TAB}
Enter a citation key with completion.  This may also be a key which does
not yet exist.

@item .
Show insertion point in another window.  This is the point from where you
called @code{reftex-citation}.

@tablesubheading{Exiting}
@item q
Exit the selection process without inserting a citation into the
buffer.

@tablesubheading{Updating the buffer}

@item g
Start over with a new regular expression.  The full database will be
rescanned with the new expression (see also @kbd{r}).

@c FIXME: Should we use something else here? r is usually rescan!
@item r
Refine the current selection with another regular expression.  This will
@emph{not} rescan the entire database, but just the already selected
entries.

@end table

@vindex reftex-select-bib-map
In order to define additional commands for this selection process, the
keymap @code{reftex-select-bib-map} may be used.

Note that if you do not use Emacs to edit the @BibTeX{} database files,
@RefTeX{} will ask if the related buffers should be updated once it
detects that the files were changed externally.  If you do not want to
be bothered by such queries, you can activate Auto Revert mode for these
buffers by adding the following expression to your init file:

@lisp
(add-hook 'bibtex-mode-hook 'turn-on-auto-revert-mode)
@end lisp


@node Citation Styles
@section Citation Styles
@cindex Citation styles
@cindex Citation styles, @code{natbib}
@cindex Citation styles, @code{harvard}
@cindex Citation styles, @code{chicago}
@cindex Citation styles, @code{jurabib}
@cindex Citation styles, @ConTeXt{}
@cindex @code{natbib}, citation style
@cindex @code{harvard}, citation style
@cindex @code{chicago}, citation style
@cindex @code{jurabib}, citation style
@cindex @ConTeXt{}, citation style

@vindex reftex-cite-format
The standard @LaTeX{} macro @code{\cite} works well with numeric or
simple key citations.  To deal with the more complex task of author-year
citations as used in many natural sciences, a variety of packages has
been developed which define derived forms of the @code{\cite} macro.
@RefTeX{} can be configured to produce these citation macros as well by
setting the variable @code{reftex-cite-format}.  For the most commonly
used @LaTeX{} packages (@code{natbib}, @code{harvard}, @code{chicago},
@code{jurabib}) and for @ConTeXt{} this may be done from the menu, under
@code{Ref->Citation Styles}.  Since there are usually several macros to
create the citations, executing @code{reftex-citation} (@kbd{C-c [})
starts by prompting for the correct macro.  For the Natbib style, this
looks like this:

@example
SELECT A CITATION FORMAT

[^M]   \cite@{%l@}
[t]    \citet@{%l@}
[T]    \citet*@{%l@}
[p]    \citep@{%l@}
[P]    \citep*@{%l@}
[e]    \citep[e.g.][]@{%l@}
[s]    \citep[see][]@{%l@}
[a]    \citeauthor@{%l@}
[A]    \citeauthor*@{%l@}
[y]    \citeyear@{%l@}
@end example

@vindex reftex-cite-prompt-optional-args
If citation formats contain empty pairs of square brackets, @RefTeX{}
will prompt for values of these optional arguments if you call the
@code{reftex-citation} command with a @kbd{C-u} prefix.
Following the most generic of these packages, @code{natbib}, the builtin
citation packages always accept the @kbd{t} key for a @emph{textual}
citation (like: @code{Jones et al. (1997) have shown...})  as well as
the @kbd{p} key for a parenthetical citation (like: @code{As shown
earlier (Jones et al, 1997)}).

To make one of these styles the default, customize the variable
@code{reftex-cite-format} or put into @file{.emacs}:

@lisp
(setq reftex-cite-format 'natbib)
@end lisp

You can also use @AUCTeX{} style files to automatically set the
citation style based on the @code{usepackage} commands in a given
document.  @xref{Style Files}, for information on how to set up the style
files correctly.

@node Citation Info
@section Citation Info
@cindex Displaying citations
@cindex Citations, displaying
@cindex Citation info
@cindex Viewing citations
@kindex C-c &
@kindex S-mouse-2
@findex reftex-view-crossref
@findex reftex-mouse-view-crossref

When point is idle for more than @code{reftex-idle-time} seconds on the
argument of a @code{\cite} macro, the echo area will display some
information about the article cited there.  Note that the information is
only displayed if the echo area is not occupied by a different message.

@RefTeX{} can also display the @code{\bibitem} or @BibTeX{} database
entry corresponding to a @code{\cite} macro, or all citation locations
corresponding to a @code{\bibitem} or @BibTeX{} database entry.
@xref{Viewing Cross-References}.

@node Chapterbib and Bibunits
@section Chapterbib and Bibunits
@cindex @code{chapterbib}, LaTeX package
@cindex @code{bibunits}, LaTeX package
@cindex Bibliographies, multiple

@code{chapterbib} and @code{bibunits} are two @LaTeX{} packages which
produce multiple bibliographies in a document.  This is no problem for
@RefTeX{} as long as all bibliographies use the same @BibTeX{} database
files.  If they do not, it is best to have each document part in a
separate file (as it is required for @code{chapterbib} anyway).  Then
@RefTeX{} will still scan the locally relevant databases correctly.  If
you have multiple bibliographies within a @emph{single file}, this may
or may not be the case.

@node Citations Outside LaTeX
@section Citations outside @LaTeX{}
@cindex Citations outside LaTeX
@vindex reftex-default-bibliography

The command @code{reftex-citation} can also be executed outside a @LaTeX{}
buffer.  This can be useful to reference articles in the mail buffer and
other documents.  You should @emph{not} enter @code{reftex-mode} for
this, just execute the command.  The list of @BibTeX{} files will in this
case be taken from the variable @code{reftex-default-bibliography}.
Setting the variable @code{reftex-cite-format} to the symbol
@code{locally} does a decent job of putting all relevant information
about a citation directly into the buffer.  Here is the lisp code to add
the @kbd{C-c [} binding to the mail buffer.  It also provides a local
binding for @code{reftex-cite-format}.

@lisp
(add-hook 'mail-setup-hook
          (lambda () (define-key mail-mode-map "\C-c["
                       (lambda ()
                         (interactive)
                         (let ((reftex-cite-format 'locally))
                           (reftex-citation))))))
@end lisp

@node BibTeX Database Subsets
@section Database Subsets
@cindex BibTeX database subsets
@findex reftex-create-bibtex-file

@RefTeX{} offers two ways to create a new @BibTeX{} database file.

The first option produces a file which contains only the entries
actually referenced in the current document.  This can be useful if
the database is only meant for a single document and you want to clean
it of old and unused ballast.  It can also be useful while writing a
document together with collaborators, in order to avoid sending around
the entire (possibly very large) database.  To create the file, use
@kbd{M-x reftex-create-bibtex-file}, also available from the menu
under @code{Ref->Global Actions->Create Bibtex File}.  The command will
prompt for a @BibTeX{} file name and write the extracted entries to that
file.

The second option makes use of the selection process started by the
command @kbd{C-c [} (@pxref{Creating Citations}).  This command uses a
regular expression to select entries, and lists them in a formatted
selection buffer.  After pressing the @kbd{e} key (mnemonics: Export),
the command will prompt for the name of a new @BibTeX{} file and write
the selected entries to that file.  You can also first mark some
entries in the selection buffer with the @kbd{m} key and then export
either the @i{marked} entries (with the @kbd{e} key) or the
@i{unmarked} entries (with the @kbd{E} key).

@node Index Support
@chapter Index Support
@cindex Index Support
@cindex @code{\index}

@LaTeX{} has builtin support for creating an Index.  The @LaTeX{} core
supports two different indices, the standard index and a glossary.  With
the help of special @LaTeX{} packages (@file{multind.sty} or
@file{index.sty}), any number of indices can be supported.

Index entries are created with the @code{\index@{@var{entry}@}} macro.
All entries defined in a document are written out to the @file{.aux}
file.  A separate tool must be used to convert this information into a
nicely formatted index.  Tools used with @LaTeX{} include @code{MakeIndex}
and @code{xindy}.

Indexing is a very difficult task.  It must follow strict conventions to
make the index consistent and complete.  There are basically two
approaches one can follow, and both have their merits.

@enumerate
@item
Part of the indexing should already be done with the markup.  The
document structure should be reflected in the index, so when starting
new sections, the basic topics of the section should be indexed.  If the
document contains definitions, theorems or the like, these should all
correspond to appropriate index entries.  This part of the index can
very well be developed along with the document.  Often it is worthwhile
to define special purpose macros which define an item and at the same
time make an index entry, possibly with special formatting to make the
reference page in the index bold or underlined.  To make @RefTeX{}
support for indexing possible, these special macros must be added to
@RefTeX{}'s configuration (@pxref{Defining Index Macros}).

@item
The rest of the index is often just a collection of where in the
document certain words or phrases are being used.  This part is
difficult to develop along with the document, because consistent entries
for each occurrence are needed and are best selected when the document
is ready.  @RefTeX{} supports this with an @emph{index phrases file}
which collects phrases and helps indexing the phrases globally.
@end enumerate

Before you start, you need to make sure that @RefTeX{} knows about
the index style being used in the current document.  @RefTeX{} has
builtin support for the default @code{\index} and @code{\glossary}
macros.  Other @LaTeX{} packages, like the @file{multind} or @file{index}
package, redefine the @code{\index} macro to have an additional
argument, and @RefTeX{} needs to be configured for those.  A
sufficiently new version of @AUCTeX{} (9.10c or later) will do this
automatically.  If you really don't use @AUCTeX{} (you should!), this
configuration needs to be done by hand with the menu (@code{Ref->Index
Style}), or globally for all your documents with

@lisp
(setq reftex-index-macros '(multind))     @r{or}
(setq reftex-index-macros '(index))
@end lisp

@menu
* Creating Index Entries::           Macros and completion of entries.
* The Index Phrases File::           A special file for global indexing.
* Displaying and Editing the Index:: The index editor.
* Builtin Index Macros::             The index macros RefTeX knows about.
* Defining Index Macros::                ... and macros it  doesn't.
@end menu

@node Creating Index Entries
@section Creating Index Entries
@cindex Creating index entries
@cindex Index entries, creating
@kindex C-c <
@findex reftex-index
@kindex C-c /
@findex reftex-index-selection-or-word

In order to index the current selection or the word at the cursor press
@kbd{C-c /} (@code{reftex-index-selection-or-word}).  This causes the
selection or word @samp{@var{word}} to be replaced with
@samp{\index@{@var{word}@}@var{word}}.  The macro which is used
(@code{\index} by default) can be configured with the variable
@code{reftex-index-default-macro}.  When the command is called with a
prefix argument (@kbd{C-u C-c /}), you get a chance to edit the
generated index entry.  Use this to change the case of the word or to
make the entry a subentry, for example by entering
@samp{main!sub!@var{word}}.  When called with two raw @kbd{C-u} prefixes
(@kbd{C-u C-u C-c /}), you will be asked for the index macro as well.
When there is nothing selected and no word at point, this command will
just call @code{reftex-index}, described below.

In order to create a general index entry, press @kbd{C-c <}
(@code{reftex-index}).  @RefTeX{} will prompt for one of the
available index macros and for its arguments.  Completion will be
available for the index entry and, if applicable, the index tag.  The
index tag is a string identifying one of multiple indices.  With the
@file{multind} and @file{index} packages, this tag is the first argument
to the redefined @code{\index} macro.

@node The Index Phrases File
@section The Index Phrases File
@cindex Index phrase file
@cindex Phrase file
@kindex C-c |
@findex reftex-index-visit-phrases-buffer
@cindex Macro definition lines, in phrase buffer

@RefTeX{} maintains a file in which phrases can be collected for
later indexing.  The file is located in the same directory as the master
file of the document and has the extension @file{.rip} (@b{R}eftex
@b{I}ndex @b{P}hrases).  You can create or visit the file with @kbd{C-c
|} (@code{reftex-index-visit-phrases-buffer}).  If the file is empty it
is initialized by inserting a file header which contains the definition
of the available index macros.  This list is initialized from
@code{reftex-index-macros} (@pxref{Defining Index Macros}).  You can
edit the header as needed, but if you define new @LaTeX{} indexing macros,
don't forget to add them to @code{reftex-index-macros} as well.  Here is
a phrase file header example:

@example
% -*- mode: reftex-index-phrases -*-
%                           Key   Macro Format       Repeat
%----------------------------------------------------------
>>>INDEX_MACRO_DEFINITION:   i    \index@{%s@}          t
>>>INDEX_MACRO_DEFINITION:   I    \index*@{%s@}         nil
>>>INDEX_MACRO_DEFINITION:   g    \glossary@{%s@}       t
>>>INDEX_MACRO_DEFINITION:   n    \index*[name]@{%s@}   nil
%----------------------------------------------------------
@end example

The macro definition lines consist of a unique letter identifying a
macro, a format string and the @var{repeat} flag, all separated by
@key{TAB}.  The format string shows how the macro is to be applied, the
@samp{%s} will be replaced with the index entry.  The repeat flag
indicates if @var{word} is indexed by the macro as
@samp{\index@{@var{word}@}} (@var{repeat} = @code{nil}) or as
@samp{\index@{@var{word}@}@var{word}} (@var{repeat} = @code{t}).  In the
above example it is assumed that the macro @code{\index*@{@var{word}@}}
already typesets its argument in the text, so that it is unnecessary to
repeat @var{word} outside the macro.

@menu
* Collecting Phrases::               Collecting from document or external.
* Consistency Checks::               Check for duplicates etc.
* Global Indexing::                  The interactive indexing process.
@end menu

@node Collecting Phrases
@subsection Collecting Phrases
@cindex Collecting index phrases
@cindex Index phrases, collection
@cindex Phrases, collecting

Phrases for indexing can be collected while writing the document.  The
command @kbd{C-c \} (@code{reftex-index-phrase-selection-or-word})
copies the current selection (if active) or the word near point into the
phrases buffer.  It then selects this buffer, so that the phrase line
can be edited.  To return to the @LaTeX{} document, press @kbd{C-c C-c}
(@code{reftex-index-phrases-save-and-return}).

You can also prepare the list of index phrases in a different way and
copy it into the phrases file.  For example you might want to start from
a word list of the document and remove all words which should not be
indexed.

The phrase lines in the phrase buffer must have a specific format.
@RefTeX{} will use font-lock to indicate if a line has the proper
format.  A phrase line looks like this:

@example
[@var{key}] <TABs> @var{phrase} [<TABs> @var{arg}[&&@var{arg}]... [ || @var{arg}]...]
@end example

@code{<TABs>} stands for white space containing at least one @key{TAB}.
@var{key} must be at the start of the line and is the character
identifying one of the macros defined in the file header.  It is
optional; when omitted, the first macro definition line in the file
will be used for this phrase.  The @var{phrase} is the phrase to be
searched for when indexing.  It may contain several words separated by
spaces.  By default the search phrase is also the text entered as
argument of the index macro.  If you want the index entry to be
different from the search phrase, enter another @key{TAB} and the index
argument @var{arg}.  If you want to have each match produce several
index entries, separate the different index arguments with @samp{ &&
}@footnote{@samp{&&} with optional spaces, see
@code{reftex-index-phrases-logical-and-regexp}.}.  If you want to be
able to choose at each match between several different index arguments,
separate them with @samp{ || }@footnote{@samp{||} with optional spaces,
see @code{reftex-index-phrases-logical-or-regexp}.}.  Here is an
example:

@example
%--------------------------------------------------------------------
I     Sun
i     Planet         Planets
i     Vega           Stars!Vega
      Jupiter        Planets!Jupiter
i     Mars           Planets!Mars || Gods!Mars || Chocolate Bars!Mars
i     Pluto          Planets!Pluto && Kuiper Belt Objects!Pluto
@end example


So @samp{Sun} will be indexed directly as @samp{\index*@{Sun@}}, while
@samp{Planet} will be indexed as @samp{\index@{Planets@}Planet}.
@samp{Vega} will be indexed as a subitem of @samp{Stars}.  The
@samp{Jupiter} line will also use the @samp{i} macro as it was the first
macro definition in the file header (see above example).  At each
occurrence of @samp{Mars} you will be able choose between indexing it as
a subitem of @samp{Planets}, @samp{Gods} or @samp{Chocolate Bars}.
Finally, every occurrence of @samp{Pluto} will be indexed as
@samp{\index@{Planets!Pluto@}\index@{Kuiper Belt Objects!Pluto@}Pluto}
and will therefore create two different index entries.

@node Consistency Checks
@subsection Consistency Checks
@cindex Index phrases, consistency checks
@cindex Phrases, consistency checks
@cindex Consistency check for index phrases

@kindex C-c C-s
Before indexing the phrases in the phrases buffer, they should be
checked carefully for consistency.  A first step is to sort the phrases
alphabetically; this is done with the command @kbd{C-c C-s}
(@code{reftex-index-sort-phrases}).  It will sort all phrases in the
buffer alphabetically by search phrase.  If you want to group certain
phrases and only sort within the groups, insert empty lines between the
groups.  Sorting will only change the sequence of phrases within each
group (see the variable @code{reftex-index-phrases-sort-in-blocks}).

@kindex C-c C-i
A useful command is @kbd{C-c C-i} (@code{reftex-index-phrases-info})
which lists information about the phrase at point, including an example
of how the index entry will look like and the number of expected matches
in the document.

@kindex C-c C-t
Another important check is to find out if there are double or
overlapping entries in the buffer.  For example if you are first
searching and indexing @samp{Mars} and then @samp{Planet Mars}, the
second phrase will not match because of the index macro inserted before
@samp{Mars} earlier.  The command @kbd{C-c C-t}
(@code{reftex-index-find-next-conflict-phrase}) finds the next phrase in
the buffer which is either duplicate or a subphrase of another phrase.
In order to check the whole buffer like this, start at the beginning and
execute this command repeatedly.

@node Global Indexing
@subsection Global Indexing
@cindex Global indexing
@cindex Indexing, global
@cindex Indexing, from @file{phrases} buffer

Once the index phrases have been collected and organized, you are set
for global indexing.  I recommend to do this only on an otherwise
finished document.  Global indexing starts from the phrases buffer.
There are several commands which start indexing: @kbd{C-c C-x} acts on
the current phrase line, @kbd{C-c C-r} on all lines in the current
region and @kbd{C-c C-a} on all phrase lines in the buffer.  It is
probably good to do indexing in small chunks since your concentration
may not last long enough to do everything in one go.

@RefTeX{} will start at the first phrase line and search the phrase
globally in the whole document.  At each match it will stop, compute the
replacement string and offer you the following choices@footnote{Windows
users: Restrict yourself to the described keys during indexing.  Pressing
@key{Help} at the indexing prompt can apparently hang Emacs.}:

@table @kbd
@item y
Replace this match with the proposed string.
@item n
Skip this match.
@item !
Replace this and all further matches in this file.
@item q
Skip this match, start with next file.
@item Q
Skip this match, start with next phrase.
@item o
Select a different indexing macro for this match.
@item 1-9
Select one of multiple index keys (those separated with @samp{||}).
@item e
Edit the replacement text.
@item C-r
Recursive edit.  Use @kbd{C-M-c} to return to the indexing process.
@item s
Save this buffer and ask again about the current match.
@item S
Save all document buffers and ask again about the current match.
@item C-g
Abort the indexing process.
@end table

The @samp{Find and Index in Document} menu in the phrases buffer also
lists a few options for the indexing process.  The options have
associated customization variables to set the defaults
(@pxref{Options - Index Support}).  Here is a short explanation of
what the options do:

@table @i
@item Match Whole Words
When searching for index phrases, make sure whole words are matched.
This should probably always be on.
@item Case Sensitive Search
Search case sensitively for phrases.  I recommend to have this setting
off, in order to match the capitalized words at the beginning of a
sentence, and even typos.  You can always say @emph{no} at a match you
do not like.
@item Wrap Long Lines
Inserting index macros increases the line length.  Turn this option on
to allow @RefTeX{} to wrap long lines.
@item Skip Indexed Matches
When this is on, @RefTeX{} will at each match try to figure out if
this match is already indexed.  A match is considered indexed if it is
either the argument of an index macro, or if an index macro is directly
(without whitespace separation) before or after the match.  Index macros
are those configured in @code{reftex-index-macros}.  Intended for
re-indexing a documents after changes have been made.
@end table

Even though indexing should be the last thing you do to a document, you
are bound to make changes afterwards.  Indexing then has to be applied
to the changed regions.  The command
@code{reftex-index-phrases-apply-to-region} is designed for this
purpose.  When called from a @LaTeX{} document with active region, it will
apply @code{reftex-index-all-phrases} to the current region.

@node Displaying and Editing the Index
@section Displaying and Editing the Index
@cindex Displaying the Index
@cindex Editing the Index
@cindex Index entries, creating
@cindex Index, displaying
@cindex Index, editing
@kindex C-c >
@findex reftex-display-index

In order to compile and display the index, press @kbd{C-c >}.  If the
document uses multiple indices, @RefTeX{} will ask you to select
one.  Then, all index entries will be sorted alphabetically and
displayed in a special buffer, the @file{*Index*} buffer.  From that
buffer you can check and edit each entry.

The index can be restricted to the current section or the region.  Then
only entries in that part of the document will go into the compiled
index.  To restrict to the current section, use a numeric prefix
@samp{2}, thus press @kbd{C-u 2 C-c >}.  To restrict to the current
region, make the region active and use a numeric prefix @samp{3} (press
@kbd{C-u 3 C-c >}).  From within the @file{*Index*} buffer the
restriction can be moved from one section to the next by pressing the
@kbd{<} and @kbd{>} keys.

One caveat: @RefTeX{} finds the definition point of an index entry
by searching near the buffer position where it had found to macro during
scanning.  If you have several identical index entries in the same
buffer and significant changes have shifted the entries around, you must
rescan the buffer to ensure the correspondence between the
@file{*Index*} buffer and the definition locations.  It is therefore
advisable to rescan the document (with @kbd{r} or @kbd{C-u r})
frequently while editing the index from the @file{*Index*}
buffer.

@kindex ?
Here is a list of special commands available in the @file{*Index*} buffer.  A
summary of this information is always available by pressing
@kbd{?}.

@table @kbd
@tablesubheading{General}
@item ?
Display a summary of commands.

@item 0-9, -
Prefix argument.

@tablesubheading{Moving around}
@item ! A..Z
Pressing any capital letter will jump to the corresponding section in
the @file{*Index*} buffer.  The exclamation mark is special and jumps to
the first entries alphabetically sorted below @samp{A}.  These are
usually non-alphanumeric characters.
@item n
Go to next entry.
@item p
Go to previous entry.

@tablesubheading{Access to document locations}
@item @key{SPC}
Show the place in the document where this index entry is defined.

@item @key{TAB}
Go to the definition of the current index entry in another
window.

@item @key{RET}
Go to the definition of the current index entry and hide the
@file{*Index*} buffer window.

@item f
@vindex reftex-index-follow-mode
@vindex reftex-revisit-to-follow
Toggle follow mode.  When follow mode is active, the other window will
always show the location corresponding to the line in the @file{*Index*}
buffer at point.  This is similar to pressing @key{SPC} after each
cursor motion.  The default for this flag can be set with the variable
@code{reftex-index-follow-mode}.  Note that only context in files
already visited is shown.  @RefTeX{} will not visit a file just for
follow mode.  See, however, the variable
@code{reftex-revisit-to-follow}.

@tablesubheading{Entry editing}
@item e
Edit the current index entry.  In the minibuffer, you can edit the
index macro which defines this entry.

@item C-k
Kill the index entry.  Currently not implemented because I don't know
how to implement an @code{undo} function for this.

@item *
Edit the @var{key} part of the entry.  This is the initial part of the
entry which determines the location of the entry in the index.

@item |
Edit the @var{attribute} part of the entry.  This is the part after the
vertical bar.  With @code{MakeIndex}, this part is an encapsulating
macro.  With @code{xindy}, it is called @emph{attribute} and is a
property of the index entry that can lead to special formatting.  When
called with @kbd{C-u} prefix, kill the entire @var{attribute}
part.

@item @@
Edit the @var{visual} part of the entry.  This is the part after the
@samp{@@} which is used by @code{MakeIndex} to change the visual
appearance of the entry in the index.  When called with @kbd{C-u}
prefix, kill the entire @var{visual} part.

@item (
Toggle the beginning of page range property @samp{|(} of the
entry.

@item )
Toggle the end of page range property @samp{|)} of the entry.

@item _
Make the current entry a subentry.  This command will prompt for the
superordinate entry and insert it.

@item ^
Remove the highest superordinate entry.  If the current entry is a
subitem (@samp{aaa!bbb!ccc}), this function moves it up the hierarchy
(@samp{bbb!ccc}).

@tablesubheading{Exiting}
@item q
Hide the @file{*Index*} buffer.

@item k
Kill the @file{*Index*} buffer.

@item C-c =
Switch to the Table of Contents buffer of this document.

@tablesubheading{Controlling what gets displayed}
@item c
@vindex reftex-index-include-context
Toggle the display of short context in the @file{*Index*} buffer.  The
default for this flag can be set with the variable
@code{reftex-index-include-context}.

@item @}
Restrict the index to a single document section.  The corresponding
section number will be displayed in the @code{R<>} indicator in the
mode line and in the header of the @file{*Index*} buffer.

@item @{
Widen the index to contain all entries of the document.

@item <
When the index is currently restricted, move the restriction to the
previous section.

@item >
When the index is currently restricted, move the restriction to the
next section.

@tablesubheading{Updating the buffer}
@item g
Rebuild the @file{*Index*} buffer.  This does @emph{not} rescan the
document.  However, it sorts the entries again, so that edited entries
will move to the correct position.

@item r
@vindex reftex-enable-partial-scans
Reparse the @LaTeX{} document and rebuild the @file{*Index*} buffer.  When
@code{reftex-enable-partial-scans} is non-@code{nil}, rescan only the file this
location is defined in, not the entire document.

@item C-u r
Reparse the @emph{entire} @LaTeX{} document and rebuild the @file{*Index*}
buffer.

@item s
Switch to a different index (for documents with multiple
indices).
@end table


@node Builtin Index Macros
@section Builtin Index Macros
@cindex Builtin index macros
@cindex Index macros, builtin
@vindex reftex-index-macros
@cindex @code{multind}, LaTeX package
@cindex @code{index}, LaTeX package
@cindex LaTeX packages, @code{multind}
@cindex LaTeX packages, @code{index}

@RefTeX{} by default recognizes the @code{\index} and
@code{\glossary} macros which are defined in the @LaTeX{} core.  It has
also builtin support for the re-implementations of @code{\index}
in the @file{multind} and @file{index} packages.  However, since
the different definitions of the @code{\index} macro are incompatible,
you will have to explicitly specify the index style used.
@xref{Creating Index Entries}, for information on how to do that.

@node Defining Index Macros
@section Defining Index Macros
@cindex  Defining Index Macros
@cindex Index macros, defining
@vindex reftex-index-macros

When writing a document with an index you will probably define
additional macros which make entries into the index.
Let's look at an example.

@example
\newcommand@{\ix@}[1]@{#1\index@{#1@}@}
\newcommand@{\nindex@}[1]@{\textit@{#1@}\index[name]@{#1@}@}
\newcommand@{\astobj@}[1]@{\index@{Astronomical Objects!#1@}@}
@end example

The first macro @code{\ix} typesets its argument in the text and places
it into the index.  The second macro @code{\nindex} typesets its
argument in the text and places it into a separate index with the tag
@samp{name}@footnote{We are using the syntax of the @file{index} package
here.}.  The last macro also places its argument into the index, but as
subitems under the main index entry @samp{Astronomical Objects}.  Here
is how to make @RefTeX{} recognize and correctly interpret these
macros, first with Emacs Lisp.

@lisp
(setq reftex-index-macros
      '(("\\ix@{*@}" "idx" ?x "" nil nil)
        ("\\nindex@{*@}" "name" ?n "" nil nil)
        ("\\astobj@{*@}" "idx" ?o "Astronomical Objects!" nil t)))
@end lisp

Note that the index tag is @samp{idx} for the main index, and
@samp{name} for the name index.  @samp{idx} and @samp{glo} are reserved
for the default index and for the glossary.

The character arguments @code{?x}, @code{?n}, and @code{?o} are for
quick identification of these macros when @RefTeX{} inserts new
index entries with @code{reftex-index}.  These codes need to be
unique. @code{?i}, @code{?I}, and @code{?g} are reserved for the
@code{\index}, @code{\index*}, and @code{\glossary} macros,
respectively.

The following string is empty unless your macro adds a superordinate
entry to the index key; this is the case for the @code{\astobj} macro.

The next entry can be a hook function to exclude certain matches, it
almost always can be @code{nil}.

The final element in the list indicates if the text being indexed needs
to be repeated outside the macro.  For the normal index macros, this
should be @code{t}.  Only if the macro typesets the entry in the text
(like @code{\ix} and @code{\nindex} in the example do), this should be
@code{nil}.

To do the same thing with customize, you need to fill in the templates
like this:

@example
Repeat:
[INS] [DEL] List:
            Macro with args: \ix@{*@}
            Index Tag      : [Value Menu] String: idx
            Access Key     : x
            Key Prefix     :
            Exclusion hook : nil
            Repeat Outside : [Toggle]  off (nil)
[INS] [DEL] List:
            Macro with args: \nindex@{*@}
            Index Tag      : [Value Menu] String: name
            Access Key     : n
            Key Prefix     :
            Exclusion hook : nil
            Repeat Outside : [Toggle]  off (nil)
[INS] [DEL] List:
            Macro with args: \astobj@{*@}
            Index Tag      : [Value Menu] String: idx
            Access Key     : o
            Key Prefix     : Astronomical Objects!
            Exclusion hook : nil
            Repeat Outside : [Toggle]  on (non-nil)
[INS]
@end example

With the macro @code{\ix} defined, you may want to change the default
macro used for indexing a text phrase (@pxref{Creating Index Entries}).
This would be done like this

@lisp
(setq reftex-index-default-macro '(?x "idx"))
@end lisp

which specifies that the macro identified with the character @code{?x} (the
@code{\ix} macro) should be used for indexing phrases and words already
in the buffer with @kbd{C-c /} (@code{reftex-index-selection-or-word}).
The index tag is "idx".

@node Viewing Cross-References
@chapter Viewing Cross-References
@findex reftex-view-crossref
@findex reftex-mouse-view-crossref
@kindex C-c &
@kindex S-mouse-2

@RefTeX{} can display cross-referencing information.  This means,
if two document locations are linked, @RefTeX{} can display the
matching location(s) in another window.  The @code{\label} and @code{\ref}
macros are one way of establishing such a link.  Also, a @code{\cite}
macro is linked to the corresponding @code{\bibitem} macro or a @BibTeX{}
database entry.

The feature is invoked by pressing @kbd{C-c &}
(@code{reftex-view-crossref}) while point is on the @var{key} argument
of a macro involved in cross-referencing.  You can also click with
@kbd{S-mouse-2} on the macro argument.  Here is what will happen for
individual classes of macros:

@table @asis

@item @code{\ref}
@cindex @code{\ref}
Display the corresponding label definition.  All usual
variants@footnote{all macros that start with @samp{ref} or end with
@samp{ref} or @samp{refrange}} of the @code{\ref} macro are active for
cross-reference display.  This works also for labels defined in an
external document when the current document refers to them through the
@code{xr} interface (@pxref{LaTeX xr Package}).

@item @code{\label}
@cindex @code{\label}
@vindex reftex-label-alist
Display a document location which references this label.  Pressing
@kbd{C-c &} several times moves through the entire document and finds
all locations.  Not only the @code{\label} macro but also other macros
with label arguments (as configured with @code{reftex-label-alist}) are
active for cross-reference display.

@item @code{\cite}
@cindex @code{\cite}
Display the corresponding @BibTeX{} database entry or @code{\bibitem}.
All usual variants@footnote{all macros that either start or end with
@samp{cite}} of the @code{\cite} macro are active for cross-reference
display.

@item @code{\bibitem}
@cindex @code{\bibitem}
Display a document location which cites this article. Pressing
@kbd{C-c &} several times moves through the entire document and finds
all locations.

@item @BibTeX{}
@cindex BibTeX buffer, viewing cite locations from
@cindex Viewing cite locations from BibTeX buffer
@kbd{C-c &} is also active in @BibTeX{} buffers.  All locations in a
document where the database entry at point is cited will be displayed.
On first use, @RefTeX{} will prompt for a buffer which belongs to
the document you want to search.  Subsequent calls will use the same
document, until you break this link with a prefix argument to @kbd{C-c
&}.

@item @code{\index}
@cindex @code{\index}
Display other locations in the document which are marked by an index
macro with the same key argument.  Along with the standard @code{\index}
and @code{\glossary} macros, all macros configured in
@code{reftex-index-macros} will be recognized.
@end table

@vindex reftex-view-crossref-extra
While the display of cross referencing information for the above
mentioned macros is hard-coded, you can configure additional relations
in the variable @code{reftex-view-crossref-extra}.

@iftex
@chapter All the Rest
@end iftex
@ifnottex
@raisesections
@end ifnottex

@node RefTeXs Menu
@section @RefTeX{}'s Menu
@cindex RefTeXs Menu
@cindex Menu, in the menu bar

@RefTeX{} installs a @code{Ref} menu in the menu bar on systems
which support this.  From this menu you can access all of
@RefTeX{}'s commands and a few of its options.  There is also a
@code{Customize} submenu which can be used to access @RefTeX{}'s
entire set of options.

@node Key Bindings
@section Default Key Bindings
@cindex Key Bindings, summary

Here is a summary of the available key bindings.

@kindex C-c =
@kindex C-c -
@kindex C-c (
@kindex C-c )
@kindex C-c [
@kindex C-c &
@kindex S-mouse-2
@kindex C-c /
@kindex C-c \
@kindex C-c |
@kindex C-c <
@kindex C-c >
@example
@kbd{C-c =}      @code{reftex-toc}
@kbd{C-c -}      @code{reftex-toc-recenter}
@kbd{C-c (}      @code{reftex-label}
@kbd{C-c )}      @code{reftex-reference}
@kbd{C-c [}      @code{reftex-citation}
@kbd{C-c &}      @code{reftex-view-crossref}
@kbd{S-mouse-2}  @code{reftex-mouse-view-crossref}
@kbd{C-c /}      @code{reftex-index-selection-or-word}
@kbd{C-c \}      @code{reftex-index-phrase-selection-or-word}
@kbd{C-c |}      @code{reftex-index-visit-phrases-buffer}
@kbd{C-c <}      @code{reftex-index}
@kbd{C-c >}      @code{reftex-display-index}
@end example

Note that the @kbd{S-mouse-2} binding is only provided if this key is
not already used by some other package.  @RefTeX{} will not override an
existing binding to @kbd{S-mouse-2}.

Personally, I also bind some functions in the users @kbd{C-c} map for
easier access.

@c FIXME: Do we need bindings for the Index macros here as well?
@c C-c i   C-c I or so????
@c How about key bindings for reftex-reset-mode and reftex-parse-document?
@kindex C-c t
@kindex C-c l
@kindex C-c r
@kindex C-c c
@kindex C-c v
@kindex C-c s
@kindex C-c g
@example
@kbd{C-c t}    @code{reftex-toc}
@kbd{C-c l}    @code{reftex-label}
@kbd{C-c r}    @code{reftex-reference}
@kbd{C-c c}    @code{reftex-citation}
@kbd{C-c v}    @code{reftex-view-crossref}
@kbd{C-c s}    @code{reftex-search-document}
@kbd{C-c g}    @code{reftex-grep-document}
@end example

@noindent These keys are reserved for the user, so I cannot bind them by
default.  If you want to have these key bindings available, set in your
@file{.emacs} file:

@vindex reftex-extra-bindings
@lisp
(setq reftex-extra-bindings t)
@end lisp

Note that this variable has to be set before @RefTeX{} is loaded to
have an effect.

@vindex reftex-load-hook
Changing and adding to @RefTeX{}'s key bindings is best done in the hook
@code{reftex-load-hook}.  For information on the keymaps
which should be used to add keys, see @ref{Keymaps and Hooks}.

@node Faces
@section Faces
@cindex Faces

@RefTeX{} uses faces when available to structure the selection and
table of contents buffers.  It does not create its own faces, but uses
the ones defined in @file{font-lock.el}.  Therefore, @RefTeX{} will
use faces only when @code{font-lock} is loaded.  This seems to be
reasonable because people who like faces will very likely have it
loaded.  If you wish to turn off fontification or change the involved
faces, see @ref{Options - Fontification}.

@node Multifile Documents
@section Multifile Documents
@cindex Multifile documents
@cindex Documents, spread over files

The following is relevant when working with documents spread over many
files:

@itemize @bullet
@item
@RefTeX{} has full support for multifile documents.  You can edit parts of
several (multifile) documents at the same time without conflicts.
@RefTeX{} provides functions to run @code{grep}, @code{search} and
@code{query-replace} on all files which are part of a multifile
document.

@item
@vindex tex-main-file
@vindex TeX-master
All files belonging to a multifile document should define a File
Variable (@code{TeX-master} for @AUCTeX{} or @code{tex-main-file} for the
standard Emacs @LaTeX{} mode) containing the name of the master file.  For
example, to set the file variable @code{TeX-master}, include something
like the following at the end of each @TeX{} file:

@example
%%% Local Variables: ***
%%% mode:latex ***
%%% TeX-master: "thesis.tex"  ***
%%% End: ***
@end example

@AUCTeX{} with the setting

@lisp
(setq-default TeX-master nil)
@end lisp

will actually ask you for each new file about the master file and insert
this comment automatically.  For more details see the documentation of
the @AUCTeX{} (@pxref{Multifile,,,auctex, The AUCTeX User Manual}), the
documentation about the Emacs (La)TeX mode (@pxref{TeX Print,,,emacs,
The GNU Emacs Manual}) and the Emacs documentation on File Variables
(@pxref{File Variables,,,emacs, The GNU Emacs Manual}).

@item
The context of a label definition must be found in the same file as the
label itself in order to be processed correctly by @RefTeX{}.  The only
exception is that section labels referring to a section statement
outside the current file can still use that section title as
context.

@item
@vindex reftex-include-file-commands
@RefTeX{} knows about the @code{\include} and @code{\input} macros.
In case you use different commands to include files in a multifile
document, customize the variable @code{reftex-include-file-commands}.
@end itemize

@node Language Support
@section Language Support
@cindex Language support

Some parts of @RefTeX{} are language dependent.  The default
settings work well for English.  If you are writing in a different
language, the following hints may be useful:

@itemize @bullet
@item
@vindex reftex-derive-label-parameters
@vindex reftex-abbrev-parameters
The mechanism to derive a label from context includes the abbreviation
of words and omission of unimportant words.  These mechanisms may have
to be changed for other languages.  See the variables
@code{reftex-derive-label-parameters} and @code{reftex-abbrev-parameters}.

@item
@vindex reftex-translate-to-ascii-function
@vindex reftex-label-illegal-re
Also, when a label is derived from context, @RefTeX{} clears the
context string from non-ASCII characters in order to make a valid label.
If there should ever be a version of @TeX{} which allows extended
characters @emph{in labels}, then we will have to look at the
variables @code{reftex-translate-to-ascii-function} and
@code{reftex-label-illegal-re}.

@item
When a label is referenced, @RefTeX{} looks at the word before point
to guess which label type is required.  These @emph{magic words} are
different in every language.  For an example of how to add magic words,
see @ref{Adding Magic Words}.

@vindex reftex-multiref-punctuation
@vindex reftex-cite-punctuation
@item
@RefTeX{} inserts ``punctuation'' for multiple references and
for the author list in citations.  Some of this may be language
dependent.  See the variables @code{reftex-multiref-punctuation} and
@code{reftex-cite-punctuation}.
@end itemize

@node Finding Files
@section Finding Files
@cindex Finding files

In order to find files included in a document via @code{\input} or
@code{\include}, @RefTeX{} searches all directories specified in the
environment variable @code{TEXINPUTS}.  Similarly, it will search the
path specified in the variables @code{BIBINPUTS} and @code{TEXBIB} for
@BibTeX{} database files.

When searching, @RefTeX{} will also expand recursive path
definitions (directories ending in @samp{//} or @samp{!!}).  But it will
only search and expand directories @emph{explicitly} given in these
variables. This may cause problems under the following circumstances:

@itemize @bullet
@item
Most @TeX{} system have a default search path for both @TeX{} files and @BibTeX{}
files which is defined in some setup file.  Usually this default path is
for system files which @RefTeX{} does not need to see.  But if your
document needs @TeX{} files or @BibTeX{} database files in a directory only
given in the default search path, @RefTeX{} will fail to find them.
@item
Some @TeX{} systems do not use environment variables at all in order to
specify the search path.  Both default and user search path are then
defined in setup files.
@end itemize

@noindent
There are three ways to solve this problem:

@itemize @bullet
@item
Specify all relevant directories explicitly in the environment
variables.  If for some reason you don't want to mess with the default
variables @code{TEXINPUTS} and @code{BIBINPUTS}, define your own
variables and configure @RefTeX{} to use them instead:

@lisp
(setq reftex-texpath-environment-variables '("MYTEXINPUTS"))
(setq reftex-bibpath-environment-variables '("MYBIBINPUTS"))
@end lisp

@item
Specify the full search path directly in @RefTeX{}'s variables.

@lisp
(setq reftex-texpath-environment-variables
      '("./inp:/home/cd/tex//:/usr/local/tex//"))
(setq reftex-bibpath-environment-variables
      '("/home/cd/tex/lit/"))
@end lisp

@item
Some @TeX{} systems provide stand-alone programs to do the file search just
like @TeX{} and @BibTeX{}.  E.g., Thomas Esser's @code{teTeX} uses the
@code{kpathsearch} library which provides the command @code{kpsewhich}
to search for files.  @RefTeX{} can be configured to use this
program.  Note that the exact syntax of the @code{kpsewhich}
command depends upon the version of that program.

@lisp
(setq reftex-use-external-file-finders t)
(setq reftex-external-file-finders
      '(("tex" . "kpsewhich -format=.tex %f")
        ("bib" . "kpsewhich -format=.bib %f")))
@end lisp
@end itemize

@cindex Noweb files
@vindex reftex-file-extensions
@vindex TeX-file-extensions
Some people like to use RefTeX with noweb files, which usually have the
extension @file{.nw}.  In order to deal with such files, the new
extension must be added to the list of valid extensions in the variable
@code{reftex-file-extensions}.  When working with @AUCTeX{} as major mode,
the new extension must also be known to @AUCTeX{} via the variable
@code{TeX-file-extension}.  For example:

@lisp
(setq reftex-file-extensions
      '(("nw" "tex" ".tex" ".ltx") ("bib" ".bib")))
(setq TeX-file-extensions
      '( "nw" "tex" "sty" "cls" "ltx" "texi" "texinfo"))
@end lisp

@node Optimizations
@section Optimizations
@cindex Optimizations

@b{Note added 2002.  Computers have gotten a lot faster, so most of the
optimizations discussed below will not be necessary on new machines.  I
am leaving this stuff in the manual for people who want to write thick
books, where some of it still might be useful.}

Implementing the principle of least surprises, the default settings of
@RefTeX{} ensure a safe ride for beginners and casual users.  However,
when using @RefTeX{} for a large project and/or on a small computer,
there are ways to improve speed or memory usage.

@itemize @bullet
@item
@b{Removing Lookup Buffers}@*
@cindex Removing lookup buffers
@RefTeX{} will load other parts of a multifile document as well as @BibTeX{}
database files for lookup purposes.  These buffers are kept, so that
subsequent use of the same files is fast.  If you can't afford keeping
these buffers around, and if you can live with a speed penalty, try

@vindex reftex-keep-temporary-buffers
@lisp
(setq reftex-keep-temporary-buffers nil)
@end lisp

@item
@b{Partial Document Scans}@*
@cindex Partial documents scans
@cindex Document scanning, partial
A @kbd{C-u} prefix on the major @RefTeX{} commands @code{reftex-label}
(@kbd{C-u C-c (}), @code{reftex-reference} (@kbd{C-u C-c )}),
@code{reftex-citation} (@kbd{C-u C-c [}), @code{reftex-toc} (@kbd{C-u C-c
=}), and @code{reftex-view-crossref} (@kbd{C-u C-c &}) initiates
re-parsing of the entire document in order to update the parsing
information.  For a large document this can be unnecessary, in
particular if only one file has changed.  @RefTeX{} can be configured
to do partial scans instead of full ones.  @kbd{C-u} re-parsing then
does apply only to the current buffer and files included from it.
Likewise, the @kbd{r} key in both the label selection buffer and the
table-of-contents buffer will only prompt scanning of the file in which
the label or section macro near the cursor was defined.  Re-parsing of
the entire document is still available by using @kbd{C-u C-u} as a
prefix, or the capital @kbd{R} key in the menus.  To use this feature,
try

@vindex reftex-enable-partial-scans
@lisp
(setq reftex-enable-partial-scans t)
@end lisp

@item
@b{Saving Parser Information}@*
@cindex Saving parser information
@cindex Parse information, saving to a file
@vindex reftex-parse-file-extension
Even with partial scans enabled, @RefTeX{} still has to make one full
scan, when you start working with a document.  To avoid this, parsing
information can be stored in a file.  The file @file{MASTER.rel} is used
for storing information about a document with master file
@file{MASTER.tex}.  It is written automatically when you kill a buffer
in @code{reftex-mode} or when you exit Emacs.  The information is
restored when you begin working with a document in a new editing
session.  To use this feature, put into @file{.emacs}:

@vindex reftex-save-parse-info
@lisp
(setq reftex-save-parse-info t)
@end lisp

@item
@b{Identifying label types by prefix}@*
@cindex Parse information, saving to a file
@vindex reftex-trust-label-prefix
@RefTeX{} normally parses around each label to check in which
environment this label is located, in order to assign a label type to
the label.  If your document contains thousands of labels, document
parsing will take considerable time.  If you have been using label prefixes
like tab: and fn: consistently, you can tell @RefTeX{} to get the
label type directly from the prefix, without additional parsing.  This
will be faster and also allow labels to end up in the correct category
if for some reason it is not possible to derive the correct type from
context.  For example, to enable this feature for footnote and
equation labels, use

@lisp
(setq reftex-trust-label-prefix '("fn:" "eq:"))
@end lisp

@item
@b{Automatic Document Scans}@*
@cindex Automatic document scans
@cindex Document scanning, automatic
At rare occasions, @RefTeX{} will automatically rescan a part of the
document.  If this gets into your way, it can be turned off with

@vindex reftex-allow-automatic-rescan
@lisp
(setq reftex-allow-automatic-rescan nil)
@end lisp

@RefTeX{} will then occasionally annotate new labels in the selection
buffer, saying that their position in the label list in uncertain.  A
manual document scan will fix this.

@item
@b{Multiple Selection Buffers}@*
@cindex Multiple selection buffers
@cindex Selection buffers, multiple
Normally, the selection buffer @file{*RefTeX Select*} is re-created for
every selection process.  In documents with very many labels this can
take several seconds.  @RefTeX{} provides an option to create a
separate selection buffer for each label type and to keep this buffer
from one selection to the next.  These buffers are updated automatically
only when a new label has been added in the buffers category with
@code{reftex-label}.  Updating the buffer takes as long as recreating it
- so the time saving is limited to cases where no new labels of that
category have been added.  To turn on this feature, use

@vindex reftex-use-multiple-selection-buffers
@lisp
(setq reftex-use-multiple-selection-buffers t)
@end lisp

@noindent
@cindex Selection buffers, updating
You can also inhibit the automatic updating entirely.  Then the
selection buffer will always pop up very fast, but may not contain the
most recently defined labels.  You can always update the buffer by hand,
with the @kbd{g} key.  To get this behavior, use instead

@vindex reftex-auto-update-selection-buffers
@lisp
(setq reftex-use-multiple-selection-buffers t
      reftex-auto-update-selection-buffers nil)
@end lisp
@end itemize

@need 2000
@noindent
@b{As a summary}, here are the settings I recommend for heavy use of
@RefTeX{} with large documents:

@lisp
@group
(setq reftex-enable-partial-scans t
      reftex-save-parse-info t
      reftex-use-multiple-selection-buffers t)
@end group
@end lisp

@node AUCTeX
@section @AUCTeX{}
@cindex @code{AUCTeX}, Emacs package
@cindex Emacs packages, @code{AUCTeX}

@AUCTeX{} is without doubt the best major mode for editing @TeX{} and @LaTeX{}
files with Emacs (@pxref{Top,AUCTeX,,auctex, The AUCTeX User Manual}).
If @AUCTeX{} is not part of your Emacs distribution, you can get
it@footnote{XEmacs 21.x users may want to install the corresponding
XEmacs package.} by FTP from the @value{AUCTEXSITE}.

@menu
* AUCTeX-RefTeX Interface::          How both packages work together
* Style Files::                      @AUCTeX{}'s style files can support RefTeX
* Bib-Cite::                         Hypertext reading of a document
@end menu

@node AUCTeX-RefTeX Interface
@subsection The @AUCTeX{}-@RefTeX{} Interface

@RefTeX{} contains code to interface with @AUCTeX{}.  When this
interface is turned on, both packages will interact closely.  Instead of
using @RefTeX{}'s commands directly, you can then also use them
indirectly as part of the @AUCTeX{}
environment@footnote{@RefTeX{} 4.0 and @AUCTeX{} 9.10c will be
needed for all of this to work.  Parts of it work also with earlier
versions.}.  The interface is turned on with

@lisp
(setq reftex-plug-into-AUCTeX t)
@end lisp

If you need finer control about which parts of the interface are used
and which not, read the docstring of the variable
@code{reftex-plug-into-AUCTeX} or customize it with @kbd{M-x
customize-variable @key{RET} reftex-plug-into-AUCTeX @key{RET}}.

The following list describes the individual parts of the interface.

@itemize @bullet
@item
@findex reftex-label
@vindex LaTeX-label-function@r{, AUCTeX}
@kindex C-c C-e
@kindex C-c C-s
@findex LaTeX-section@r{, AUCTeX}
@findex TeX-insert-macro@r{, AUCTeX}
@b{@AUCTeX{} calls @code{reftex-label} to insert labels}@*
When a new section is created with @kbd{C-c C-s}, or a new environment
is inserted with @kbd{C-c C-e}, @AUCTeX{} normally prompts for a label to
go with it.  With the interface, @code{reftex-label} is called instead.
For example, if you type @kbd{C-c C-e equation @key{RET}}, @AUCTeX{} and
@RefTeX{} will insert

@example
\begin@{equation@}
\label@{eq:1@}

\end@{equation@}
@end example

@noindent
without further prompts.

Similarly, when you type @kbd{C-c C-s section @key{RET}}, @RefTeX{}
will offer its default label which is derived from the section title.

@item
@b{@AUCTeX{} tells @RefTeX{} about new sections}@*
When creating a new section with @kbd{C-c C-s}, @RefTeX{} will not
have to rescan the buffer in order to see it.

@item
@findex reftex-arg-label
@findex TeX-arg-label@r{, AUCTeX function}
@findex reftex-arg-ref
@findex TeX-arg-ref@r{, AUCTeX function}
@findex reftex-arg-cite
@findex TeX-arg-cite@r{, AUCTeX function}
@findex reftex-arg-index
@findex TeX-arg-index@r{, AUCTeX function}
@findex TeX-insert-macro@r{, AUCTeX function}
@kindex C-c RET
@b{@RefTeX{} supplies macro arguments}@* When you insert a macro
interactively with @kbd{C-c @key{RET}}, @AUCTeX{} normally prompts for
macro arguments.  Internally, it uses the functions
@code{TeX-arg-label}, @code{TeX-arg-cite}, and @code{TeX-arg-index} to
prompt for arguments which are labels, citation keys and index entries.
The interface takes over these functions@footnote{@code{fset} is used to
do this, which is not reversible.  However, @RefTeX{} implements the
old functionality when you later decide to turn off the interface.} and
supplies the macro arguments with @b{@RefTeX{}'s} mechanisms.  For
example, when you type @kbd{C-c @key{RET} ref @key{RET}}, @RefTeX{}
will supply its label selection process (@pxref{Referencing
Labels}).

@item
@b{@RefTeX{} tells @AUCTeX{} about new labels, citation and index keys}@*
@RefTeX{} will add all newly created labels to @AUCTeX{}'s completion list.
@end itemize

@node Style Files
@subsection Style Files
@cindex Style files, AUCTeX
@findex TeX-add-style-hook@r{, AUCTeX}
Style files are Emacs Lisp files which are evaluated by @AUCTeX{} in
association with the @code{\documentclass} and @code{\usepackage}
commands of a document (@pxref{Style Files,,,auctex}). Support for
@RefTeX{} in such a style file is useful when the @LaTeX{} style
defines macros or environments connected with labels, citations, or the
index.  Many style files (e.g., @file{amsmath.el} or @file{natbib.el})
distributed with @AUCTeX{} already support @RefTeX{} in this
way.

Before calling a @RefTeX{} function, the style hook should always
test for the availability of the function, so that the style file will
also work for people who do not use @RefTeX{}.

Additions made with style files in the way described below remain local
to the current document.  For example, if one package uses AMSTeX, the
style file will make @RefTeX{} switch over to @code{\eqref}, but
this will not affect other documents.

@findex reftex-add-label-environments
@findex reftex-add-to-label-alist
A style hook may contain calls to
@code{reftex-add-label-environments}@footnote{This used to be the
function @code{reftex-add-to-label-alist} which is still available as an
alias for compatibility.}  which defines additions to
@code{reftex-label-alist}.  The argument taken by this function must have
the same format as @code{reftex-label-alist}.  The @file{amsmath.el}
style file of @AUCTeX{} for example contains the following:

@lisp
@group
(TeX-add-style-hook "amsmath"
   (lambda ()
     (if (fboundp 'reftex-add-label-environments)
         (reftex-add-label-environments '(AMSTeX)))))
@end group
@end lisp

@noindent
@findex LaTeX-add-environments@r{, AUCTeX}
while a package @code{myprop} defining a @code{proposition} environment
with @code{\newtheorem} might use

@lisp
@group
(TeX-add-style-hook "myprop"
   (lambda ()
     (LaTeX-add-environments '("proposition" LaTeX-env-label))
     (if (fboundp 'reftex-add-label-environments)
         (reftex-add-label-environments
          '(("proposition" ?p "prop:" "~\\ref@{%s@}" t
                           ("Proposition" "Prop.") -3))))))
@end group
@end lisp

@findex reftex-set-cite-format
Similarly, a style hook may contain a call to
@code{reftex-set-cite-format} to set the citation format.  The style
file @file{natbib.el} for the Natbib citation style does switch
@RefTeX{}'s citation format like this:

@lisp
(TeX-add-style-hook "natbib"
   (lambda ()
     (if (fboundp 'reftex-set-cite-format)
         (reftex-set-cite-format 'natbib))))
@end lisp

@findex reftex-add-index-macros
The hook may contain a call to @code{reftex-add-index-macros} to
define additional @code{\index}-like macros.  The argument must have
the same format as @code{reftex-index-macros}.  It may be a symbol, to
trigger support for one of the builtin index packages.  For example,
the style @file{multind.el} contains

@lisp
(TeX-add-style-hook "multind"
  (lambda ()
    (and (fboundp 'reftex-add-index-macros)
         (reftex-add-index-macros '(multind)))))
@end lisp

If you have your own package @file{myindex} which defines the
following macros to be used with the @LaTeX{} @file{index.sty} file
@example
\newcommand@{\molec@}[1]@{#1\index@{Molecules!#1@}@}
\newcommand@{\aindex@}[1]@{#1\index[author]@{#1@}
@end example

you could write this in the style file @file{myindex.el}:

@lisp
(TeX-add-style-hook "myindex"
   (lambda ()
     (TeX-add-symbols
      '("molec" TeX-arg-index)
      '("aindex" TeX-arg-index))
     (if (fboundp 'reftex-add-index-macros)
         (reftex-add-index-macros
          '(("molec@{*@}" "idx" ?m "Molecules!" nil nil)
            ("aindex@{*@}" "author" ?a "" nil nil))))))
@end lisp

@findex reftex-add-section-levels
Finally the hook may contain a call to @code{reftex-add-section-levels}
to define additional section statements.  For example, the FoilTeX class
has just two headers, @code{\foilhead} and @code{\rotatefoilhead}.  Here
is a style file @file{foils.el} that will inform @RefTeX{} about these:

@lisp
(TeX-add-style-hook "foils"
   (lambda ()
     (if (fboundp 'reftex-add-section-levels)
         (reftex-add-section-levels '(("foilhead" . 3)
                                      ("rotatefoilhead" . 3))))))
@end lisp

@node Bib-Cite
@subsection Bib-Cite
@cindex @code{bib-cite}, Emacs package
@cindex Emacs packages, @code{bib-cite}

Once you have written a document with labels, references and citations,
it can be nice to read it like a hypertext document.  @RefTeX{} has
support for that: @code{reftex-view-crossref} (bound to @kbd{C-c
&}), @code{reftex-mouse-view-crossref} (bound to @kbd{S-mouse-2}), and
@code{reftex-search-document}.  A somewhat fancier interface with mouse
highlighting is provided (among other things) by Peter S. Galbraith's
@file{bib-cite.el}.  There is some overlap in the functionalities of
Bib-cite and @RefTeX{}.  Bib-cite.el comes bundled with
@AUCTeX{}.

Bib-cite version 3.06 and later can be configured so that bib-cite's
mouse functions use @RefTeX{} for displaying references and citations.
This can be useful in particular when working with the @LaTeX{} @code{xr}
package or with an explicit @code{thebibliography} environment (rather
than @BibTeX{}).  Bib-cite cannot handle those, but @RefTeX{} does.  To
make use of this feature, try

@vindex bib-cite-use-reftex-view-crossref
@lisp
(setq bib-cite-use-reftex-view-crossref t)
@end lisp

@page
@node Problems and Work-Arounds
@section Problems and Work-arounds
@cindex Problems and work-arounds

@itemize @bullet
@item
@b{@LaTeX{} commands}@*
@cindex LaTeX commands, not found
@code{\input}, @code{\include}, and @code{\section} (etc.)@: statements
have to be first on a line (except for white space).

@item
@b{Commented regions}@*
@cindex Labels, commented out
@RefTeX{} sees also labels in regions commented out and will refuse to
make duplicates of such labels.  This is considered to be a feature.

@item
@b{Wrong section numbers}@*
@cindex Section numbers, wrong
@vindex reftex-enable-partial-scans
When using partial scans (@code{reftex-enable-partial-scans}), the section
numbers in the table of contents may eventually become wrong.  A full
scan will fix this.

@item
@b{Local settings}@*
@cindex Settings, local
@findex reftex-add-label-environments
@findex reftex-set-cite-format
@findex reftex-add-section-levels
The label environment definitions in @code{reftex-label-alist} are
global and apply to all documents.  If you need to make definitions
local to a document, because they would interfere with settings in other
documents, you should use @AUCTeX{} and set up style files with calls to
@code{reftex-add-label-environments}, @code{reftex-set-cite-format},
@code{reftex-add-index-macros}, and @code{reftex-add-section-levels}.
Settings made with these functions remain local to the current
document. @xref{AUCTeX}.

@item
@b{Funny display in selection buffer}@*
@cindex @code{x-symbol}, Emacs package
@cindex Emacs packages, @code{x-symbol}
@cindex @code{isotex}, Emacs package
@cindex Emacs packages, @code{isotex}
@cindex @code{iso-cvt}, Emacs package
@cindex Emacs packages, @code{iso-cvt}
When using packages which make the buffer representation of a file
different from its disk representation (e.g., x-symbol, isotex,
iso-cvt) you may find that @RefTeX{}'s parsing information sometimes
reflects the disk state of a file.  This happens only in @emph{unvisited}
parts of a multifile document, because @RefTeX{} visits these files
literally for speed reasons.  Then both short context and section
headings may look different from what you usually see on your screen.
In rare cases @code{reftex-toc} may have problems to jump to an affected
section heading.  There are three possible ways to deal with
this:
@itemize @minus
@item
@vindex reftex-keep-temporary-buffers
@code{(setq reftex-keep-temporary-buffers t)}@*
This implies that @RefTeX{} will load all parts of a multifile
document into Emacs (i.e., there won't be any temporary buffers).
@item
@vindex reftex-initialize-temporary-buffers
@code{(setq reftex-initialize-temporary-buffers t)}@*
This means full initialization of temporary buffers.  It involves
a penalty when the same unvisited file is used for lookup often.
@item
Set @code{reftex-initialize-temporary-buffers} to a list of hook
functions doing a minimal initialization.
@end itemize
@vindex reftex-refontify-context
See also the variable @code{reftex-refontify-context}.

@item
@b{Labels as arguments to \begin}@*
@cindex @code{pf}, LaTeX package
@cindex LaTeX packages, @code{pf}
Some packages use an additional argument to a @code{\begin} macro
to specify a label.  E.g., Lamport's @file{pf.sty} uses both
@example
\step@{@var{label}@}@{@var{claim}@}   and      \begin@{step+@}@{@var{label}@}
                                  @var{claim}
                               \end@{step+@}
@end example

@noindent
We need to trick @RefTeX{} into swallowing this:

@lisp
@group
;; Configuration for Lamport's pf.sty
(setq reftex-label-alist
  '(("\\step@{*@}@{@}"       ?p "st:" "~\\stepref@{%s@}" 2 ("Step" "St."))
    ("\\begin@{step+@}@{*@}" ?p "st:" "~\\stepref@{%s@}" 1000)))
@end group
@end lisp

@noindent
The first line is just a normal configuration for a macro.  For the
@code{step+} environment we actually tell @RefTeX{} to look for the
@emph{macro} @samp{\begin@{step+@}} and interpret the @emph{first}
argument (which really is a second argument to the macro @code{\begin})
as a label of type @code{?p}.  Argument count for this macro starts only
after the @samp{@{step+@}}, also when specifying how to get
context.

@item
@b{Idle timers in XEmacs}@*
@cindex Idle timer restart
@vindex reftex-use-itimer-in-xemacs
In XEmacs, idle timer restart does not work reliably after fast
keystrokes.  Therefore @RefTeX{} currently uses the post command
hook to start the timer used for automatic crossref information.  When
this bug gets fixed, a real idle timer can be requested with
@lisp
(setq reftex-use-itimer-in-xemacs t)
@end lisp

@item
@b{Viper mode}@*
@cindex Viper mode
@cindex Key bindings, problems with Viper mode
@findex viper-harness-minor-mode
With @i{Viper} mode prior to Vipers version 3.01, you need to protect
@RefTeX{}'s keymaps with

@lisp
(viper-harness-minor-mode "reftex")
@end lisp

@end itemize

@page
@node Imprint
@section Imprint
@cindex Imprint
@cindex Maintainer
@cindex Acknowledgments
@cindex Thanks
@cindex Bug reports
@cindex @code{http}, @RefTeX{} home page
@cindex @code{ftp}, @RefTeX{} site

@c dominik@@science.uva.nl
@RefTeX{} was written by @i{Carsten Dominik}, with contributions by @i{Stephen
Eglen}.  @RefTeX{} is currently maintained by @value{MAINTAINER}, see
the @value{MAINTAINERSITE} for detailed information.

If you have questions about @RefTeX{}, you can send email to the
@value{SUPPORTADDRESS}.  If you want to contribute code or ideas, write
to the @value{DEVELADDRESS}.  And in the rare case of finding a bug,
please use @kbd{M-x reftex-report-bug @key{RET}} which will prepare a
bug report with useful information about your setup.  Remember to add
essential information like a recipe for reproducing the bug, what you
expected to happen, and what actually happened.  Send the bug report to
the @value{BUGADDRESS}.

There are also several Usenet groups which have competent readers who
might be able to help: @code{comp.emacs}, @code{gnu.emacs.help},
@code{comp.emacs.xemacs}, and @code{comp.text.tex}.

Thanks to the people on the Net who have used @RefTeX{} and helped
developing it with their reports.  In particular thanks to @i{Ralf
Angeli, Fran Burstall, Alastair Burt, Lars Clausen, Soren Dayton,
Stephen Eglen, Karl Eichwalder, Erik Frisk, Peter Galbraith, Kai
Grossjohann, Frank Harrell, Till A. Heilmann, Peter Heslin, Stephan
Heuel, Alan Ho, Lute Kamstra, Dieter Kraft, David Kastrup, Adrian Lanz,
Juri Linkov, Wolfgang Mayer, Rory Molinari, Stefan Monnier, Laurent
Mugnier, Dan Nicolaescu, Sudeep Kumar Palat, Daniel Polani, Alan Shutko,
Robin Socha, Richard Stanton, Allan Strand, Jan Vroonhof, Christoph
Wedler, Alan Williams, Roland Winkler, Hans-Christoph Wirth, Eli
Zaretskii}.

The @code{view-crossref} feature was inspired by @i{Peter Galbraith's}
@file{bib-cite.el}.

Finally thanks to @i{Uwe Bolick} who first got me interested in
supporting @LaTeX{} labels and references with an editor (which was
MicroEmacs at the time).

@c Turn off the raising that we turned on in ``All the rest''.
@ifnottex
@lowersections
@end ifnottex

@node Commands
@chapter Commands
@cindex Commands, list of

Here is a summary of @RefTeX{}'s commands which can be executed from
@LaTeX{} files.  Command which are executed from the special buffers are
not described here.  All commands are available from the @code{Ref}
menu.  @xref{Key Bindings}.

@deffn Command reftex-toc
Show the table of contents for the current document.  When called with
one ore two @kbd{C-u} prefixes, rescan the document first.
@end deffn

@deffn Command reftex-label
Insert a unique label.  With one or two @kbd{C-u} prefixes, enforce
document rescan first.
@end deffn

@deffn Command reftex-reference
Start a selection process to select a label, and insert a reference to
it.  With one or two @kbd{C-u} prefixes, enforce document rescan first.
@end deffn

@deffn Command reftex-citation
Make a citation using @BibTeX{} database files.  After prompting for a regular
expression, scans the buffers with @BibTeX{} entries (taken from the
@code{\bibliography} command or a @code{thebibliography} environment)
and offers the matching entries for selection.  The selected entry is
formatted according to @code{reftex-cite-format} and inserted into the
buffer. @*
When called with a @kbd{C-u} prefix, prompt for optional arguments in
cite macros.  When called with a numeric prefix, make that many citations.
When called with point inside the braces of a @code{\cite} command, it
will add another key, ignoring the value of
@code{reftex-cite-format}. @*
The regular expression uses an expanded syntax: @samp{&&} is interpreted
as @code{and}.  Thus, @samp{aaaa&&bbb} matches entries which contain
both @samp{aaaa} and @samp{bbb}.  While entering the regexp, completion
on knows citation keys is possible.  @samp{=} is a good regular
expression to match all entries in all files.
@end deffn

@deffn Command reftex-index
Query for an index macro and insert it along with its arguments.  The
index macros available are those defined in @code{reftex-index-macro} or
by a call to @code{reftex-add-index-macros}, typically from an @AUCTeX{}
style file.  @RefTeX{} provides completion for the index tag and the
index key, and will prompt for other arguments.
@end deffn

@deffn Command reftex-index-selection-or-word
Put current selection or the word near point into the default index
macro.  This uses the information in @code{reftex-index-default-macro}
to make an index entry.  The phrase indexed is the current selection or
the word near point.  When called with one @kbd{C-u} prefix, let the
user have a chance to edit the index entry.  When called with 2
@kbd{C-u} as prefix, also ask for the index macro and other stuff.  When
called inside @TeX{} math mode as determined by the @file{texmathp.el}
library which is part of @AUCTeX{}, the string is first processed with the
@code{reftex-index-math-format}, which see.
@end deffn

@deffn Command reftex-index-phrase-selection-or-word
Add current selection or the word at point to the phrases buffer.
When you are in transient-mark-mode and the region is active, the
selection will be used; otherwise the word at point.
You get a chance to edit the entry in the phrases buffer; to save the
buffer and return to the @LaTeX{} document, finish with @kbd{C-c C-c}.
@end deffn

@deffn Command reftex-index-visit-phrases-buffer
Switch to the phrases buffer, initialize if empty.
@end deffn

@deffn Command reftex-index-phrases-apply-to-region
Index all index phrases in the current region.
This works exactly like global indexing from the index phrases buffer,
but operation is restricted to the current region.
@end deffn

@deffn Command reftex-display-index
Display a buffer with an index compiled from the current document.
When the document has multiple indices, first prompts for the correct one.
When index support is turned off, offer to turn it on.
With one or two @kbd{C-u} prefixes, rescan document first.
With prefix 2, restrict index to current document section.
With prefix 3, restrict index to active region.
@end deffn

@deffn Command reftex-view-crossref
View cross reference of macro at point.  Point must be on the @var{key}
argument.  Works with the macros @code{\label}, @code{\ref},
@code{\cite}, @code{\bibitem}, @code{\index} and many derivatives of
these.  Where it makes sense, subsequent calls show additional
locations.  See also the variable @code{reftex-view-crossref-extra} and
the command @code{reftex-view-crossref-from-bibtex}.  With one or two
@kbd{C-u} prefixes, enforce rescanning of the document.  With argument
2, select the window showing the cross reference.
@end deffn

@deffn Command reftex-view-crossref-from-bibtex
View location in a @LaTeX{} document which cites the @BibTeX{} entry at point.
Since @BibTeX{} files can be used by many @LaTeX{} documents, this function
prompts upon first use for a buffer in @RefTeX{} mode.  To reset this
link to a document, call the function with a prefix arg.  Calling
this function several times find successive citation locations.
@end deffn

@deffn Command reftex-create-tags-file
Create TAGS file by running @code{etags} on the current document.  The
TAGS file is also immediately visited with
@code{visit-tags-table}.
@end deffn

@deffn Command reftex-grep-document
Run grep query through all files related to this document.
With prefix arg, force to rescan document.
No active TAGS table is required.
@end deffn

@deffn Command reftex-search-document
Regexp search through all files of the current document.
Starts always in the master file.  Stops when a match is found.
No active TAGS table is required.
@end deffn

@deffn Command reftex-query-replace-document
Run a query-replace-regexp of @var{from} with @var{to} over the entire
document.  With prefix arg, replace only word-delimited matches.  No
active TAGS table is required.
@end deffn

@deffn Command reftex-isearch-minor-mode
Toggle a minor mode which enables incremental search to work globally
on the entire multifile document.  Files will be searched in the
sequence they appear in the document.
@end deffn

@deffn Command reftex-goto-label
Prompt for a label (with completion) and jump to the location of this
label.  Optional prefix argument @var{other-window} goes to the label in
another window.
@end deffn


@deffn Command reftex-change-label
Query replace @var{from} with @var{to} in all @code{\label} and
@code{\ref} commands.  Works on the entire multifile document.  No
active TAGS table is required.
@end deffn

@deffn Command reftex-renumber-simple-labels
Renumber all simple labels in the document to make them sequentially.
Simple labels are the ones created by RefTeX, consisting only of the
prefix and a number.  After the command completes, all these labels will
have sequential numbers throughout the document.  Any references to the
labels will be changed as well.  For this, @RefTeX{} looks at the
arguments of any macros which either start or end with the string
@samp{ref}.  This command should be used with care, in particular in
multifile documents.  You should not use it if another document refers
to this one with the @code{xr} package.
@end deffn

@deffn Command reftex-find-duplicate-labels
Produce a list of all duplicate labels in the document.
@end deffn

@deffn Command reftex-create-bibtex-file
@vindex reftex-create-bibtex-header
@vindex reftex-create-bibtex-footer
Create a new @BibTeX{} database file with all entries referenced in
document.  The command prompts for a filename and writes the collected
entries to that file.  Only entries referenced in the current document
with any @code{\cite}-like macros are used.  The sequence in the new
file is the same as it was in the old database.

Entries referenced from other entries must appear after all referencing
entries.

You can define strings to be used as header or footer for the created
files in the variables @code{reftex-create-bibtex-header} or
@code{reftex-create-bibtex-footer} respectively.
@end deffn

@deffn Command reftex-customize
Run the customize browser on the @RefTeX{} group.
@end deffn
@deffn Command reftex-show-commentary
Show the commentary section from @file{reftex.el}.
@end deffn
@deffn Command reftex-info
Run info on the top @RefTeX{} node.
@end deffn
@deffn Command reftex-parse-document
Parse the entire document in order to update the parsing information.
@end deffn
@deffn Command reftex-reset-mode
Enforce rebuilding of several internal lists and variables.  Also
removes the parse file associated with the current document.
@end deffn

@node Options
@chapter Options, Keymaps, Hooks
@cindex Options, list of

Here is a complete list of @RefTeX{}'s configuration variables.  All
variables have customize support, so if you are not familiar with Emacs
Lisp (and even if you are) you might find it more comfortable to use
@code{customize} to look at and change these variables. @kbd{M-x
reftex-customize} will get you there.

In case you don't use the @code{customize} interface, here's a caveat:
Changing (mostly parsing-related) options might require a call to
@code{reftex-compile-variables} in order to become effective.

@menu
* Options - Table of Contents::
* Options - Defining Label Environments::
* Options - Creating Labels::
* Options - Referencing Labels::
* Options - Creating Citations::
* Options - Index Support::
* Options - Viewing Cross-References::
* Options - Finding Files::
* Options - Optimizations::
* Options - Fontification::
* Options - Misc::
* Keymaps and Hooks::
@end menu

@node Options - Table of Contents
@section Table of Contents
@cindex Options, table of contents
@cindex Table of contents, options

@defopt reftex-include-file-commands
List of @LaTeX{} commands which input another file.
The file name is expected after the command, either in braces or separated
by whitespace.
@end defopt

@defopt reftex-max-section-depth
Maximum depth of section levels in document structure.
Standard @LaTeX{} needs 7, default is 12.
@end defopt

@defopt reftex-section-levels
Commands and levels used for defining sections in the document.  The
@code{car} of each cons cell is the name of the section macro.  The
@code{cdr} is a number indicating its level.  A negative level means the
same as the positive value, but the section will never get a number.
The @code{cdr} may also be a function which then has to return the
level.  This list is also used for promotion and demotion of sectioning
commands.  If you are using a document class which has several sets of
sectioning commands, promotion only works correctly if this list is
sorted first by set, then within each set by level.  The promotion
commands always select the nearest entry with the correct new level.

@end defopt

@defopt reftex-toc-max-level
The maximum level of toc entries which will be included in the TOC@.
Section headings with a bigger level will be ignored.  In RefTeX,
chapters are level 1, sections level 2 etc.  This variable can be
changed from within the @file{*toc*} buffer with the @kbd{t} key.
@end defopt

@defopt reftex-part-resets-chapter
Non-@code{nil} means, @code{\part} is like any other sectioning command.
This means, part numbers will be included in the numbering of chapters, and
chapter counters will be reset for each part.
When @code{nil} (the default), parts are special, do not reset the
chapter counter and also do not show up in chapter numbers.
@end defopt

@defopt reftex-auto-recenter-toc
Non-@code{nil} means, turn automatic recentering of @file{*TOC*} window on.
When active, the @file{*TOC*} window will always show the section you
are currently working in.  Recentering happens whenever Emacs is idle for
more than @code{reftex-idle-time} seconds.

Value @code{t} means, turn on immediately when RefTeX gets started.  Then,
recentering will work for any toc window created during the session.

Value @code{frame} (the default) means, turn automatic recentering on
only while the dedicated TOC frame does exist, and do the recentering
only in that frame.  So when creating that frame (with @kbd{d} key in an
ordinary TOC window), the automatic recentering is turned on.  When the
frame gets destroyed, automatic recentering is turned off again.

This feature can be turned on and off from the menu
(Ref->Options).
@end defopt

@defopt reftex-toc-split-windows-horizontally
Non-@code{nil} means, create TOC window by splitting window
horizontally.  The default is to split vertically.
@end defopt

@defopt reftex-toc-split-windows-fraction
Fraction of the width or height of the frame to be used for TOC window.
@end defopt

@defopt reftex-toc-keep-other-windows
Non-@code{nil} means, split the selected window to display the
@file{*toc*} buffer.  This helps to keep the window configuration, but
makes the @file{*toc*} small.  When @code{nil}, all other windows except
the selected one will be deleted, so that the @file{*toc*} window fills
half the frame.
@end defopt

@defopt reftex-toc-include-file-boundaries
Non-@code{nil} means, include file boundaries in @file{*toc*} buffer.
This flag can be toggled from within the @file{*toc*} buffer with the
@kbd{i} key.
@end defopt

@defopt reftex-toc-include-labels
Non-@code{nil} means, include labels in @file{*toc*} buffer.  This flag
can be toggled from within the @file{*toc*} buffer with the @kbd{l}
key.
@end defopt

@defopt reftex-toc-include-index-entries
Non-@code{nil} means, include index entries in @file{*toc*} buffer.
This flag can be toggled from within the @file{*toc*} buffer with the
@kbd{i} key.
@end defopt

@defopt reftex-toc-include-context
Non-@code{nil} means, include context with labels in the @file{*toc*}
buffer.  Context will only be shown if the labels are visible as well.
This flag can be toggled from within the @file{*toc*} buffer with the
@kbd{c} key.
@end defopt

@defopt reftex-toc-follow-mode
Non-@code{nil} means, point in @file{*toc*} buffer (the
table-of-contents buffer) will cause other window to follow.  The other
window will show the corresponding part of the document.  This flag can
be toggled from within the @file{*toc*} buffer with the @kbd{f}
key.
@end defopt

@deffn {Normal Hook} reftex-toc-mode-hook
Normal hook which is run when a @file{*toc*} buffer is
created.
@end deffn

@deffn Keymap reftex-toc-map
The keymap which is active in the @file{*toc*} buffer.
(@pxref{Table of Contents}).
@end deffn

@node Options - Defining Label Environments
@section Defining Label Environments
@cindex Options, defining label environments
@cindex Defining label environments, options

@defopt reftex-default-label-alist-entries
Default label alist specifications.  It is a list of symbols with
associations in the constant @code{reftex-label-alist-builtin}.
@code{LaTeX} should always be the last entry.
@end defopt

@defopt reftex-label-alist
Set this variable to define additions and changes to the defaults in
@code{reftex-default-label-alist-entries}.  The only things you
@emph{must not} change is that @code{?s} is the type indicator for
section labels, and @key{SPC} for the @code{any} label type.  These are
hard-coded at other places in the code.

The value of the variable must be a list of items.  Each item is a list
itself and has the following structure:

@example
 (@var{env-or-macro}  @var{type-key}  @var{label-prefix}  @var{reference-format}
    @var{context-method}  (@var{magic-word} ... )  @var{toc-level})
@end example

Each list entry describes either an environment carrying a counter for
use with @code{\label} and @code{\ref}, or a @LaTeX{} macro defining a
label as (or inside) one of its arguments.  The elements of each list
entry are:

@table @asis
@item @var{env-or-macro}
Name of the environment (like @samp{table}) or macro (like
@samp{\myfig}).  For macros, indicate the arguments, as in
@samp{\myfig[]@{@}@{@}@{*@}@{@}}.  Use square brackets for optional
arguments, a star to mark the label argument, if any.  The macro does
not have to have a label argument; you could also use
@samp{\label@{...@}} inside one of its arguments.

Special names: @code{section} for section labels, @code{any} to define a
group which contains all labels.

This may also be a function to do local parsing and identify point to be
in a non-standard label environment.  The function must take an
argument @var{bound} and limit backward searches to this value.  It
should return either @code{nil} or a cons cell @code{(@var{function}
. @var{position})} with the function symbol and the position where the
special environment starts.  See the Info documentation for an
example.

Finally this may also be @code{nil} if the entry is only meant to change
some settings associated with the type indicator character (see
below).

@item @var{type-key}
Type indicator character, like @code{?t}, must be a printable ASCII
character.  The type indicator is a single character which defines a
label type.  Any label inside the environment or macro is assumed to
belong to this type.  The same character may occur several times in this
list, to cover cases in which different environments carry the same
label type (like @code{equation} and @code{eqnarray}).  If the type
indicator is @code{nil} and the macro has a label argument @samp{@{*@}},
the macro defines neutral labels just like @code{\label}.  In this case
the remainder of this entry is ignored.

@item @var{label-prefix}
Label prefix string, like @samp{tab:}.  The prefix is a short string
used as the start of a label.  It may be the empty string.  The prefix
may contain the following @samp{%} escapes:

@example
%f Current file name, directory and extension stripped.
%F Current file name relative to master file directory.
%m Master file name, directory and extension stripped.
%M Directory name (without path) where master file is located.
%u User login name, on systems which support this.
%S A section prefix derived with variable @code{reftex-section-prefixes}.
@end example

@noindent
Example: In a file @file{intro.tex}, @samp{eq:%f:} will become
@samp{eq:intro:}.

@item @var{reference-format}
Format string for reference insertion in buffer.  @samp{%s} will be
replaced by the label.  When the format starts with @samp{~}, this
@samp{~} will only be inserted when the character before point is
@emph{not} a whitespace.

@item @var{context-method}
Indication on how to find the short context.
@itemize @minus
@item
If @code{nil}, use the text following the @samp{\label@{...@}} macro.
@item
If @code{t}, use
@itemize @minus
@item
the section heading for section labels.
@item
text following the @samp{\begin@{...@}} statement of environments (not
a good choice for environments like eqnarray or enumerate, where one has
several labels in a single environment).
@item
text after the macro name (starting with the first arg) for
macros.
@end itemize
@item
If an integer, use the nth argument of the macro.  As a special case,
1000 means to get text after the last macro argument.
@item
If a string, use as regexp to search @emph{backward} from the label.
Context is then the text following the end of the match.  E.g., setting
this to @samp{\\caption[[@{]} will use the caption in a figure or table
environment.  @samp{\\begin@{eqnarray@}\|\\\\} works for
eqnarrays.
@item
If any of @code{caption}, @code{item}, @code{eqnarray-like},
@code{alignat-like}, this symbol will internally be translated into an
appropriate regexp (see also the variable
@code{reftex-default-context-regexps}).
@item
If a function, call this function with the name of the environment/macro
as argument.  On call, point will be just after the @code{\label} macro.
The function is expected to return a suitable context string.  It should
throw an exception (error) when failing to find context.  As an example,
here is a function returning the 10 chars following the label macro as
context:

@example
(defun my-context-function (env-or-mac)
   (if (> (point-max) (+ 10 (point)))
       (buffer-substring (point) (+ 10 (point)))
     (error "Buffer too small")))
@end example
@end itemize

Label context is used in two ways by @RefTeX{}: For display in the label
menu, and to derive a label string.  If you want to use a different
method for each of these, specify them as a dotted pair.
E.g., @code{(nil . t)} uses the text after the label (@code{nil}) for
display, and text from the default position (@code{t}) to derive a label
string.  This is actually used for section labels.

@item @var{magic-word-list}
List of magic words which identify a reference to be of this type.  If
the word before point is equal to one of these words when calling
@code{reftex-reference}, the label list offered will be automatically
restricted to labels of the correct type.  If the first element of this
word list is the symbol @code{regexp}, the strings are interpreted as regular
expressions.

@item @var{toc-level}
The integer level at which this environment should be added to the table
of contents.  See also @code{reftex-section-levels}.  A positive value
will number the entries mixed with the sectioning commands of the same
level.  A negative value will make unnumbered entries.  Useful only for
theorem-like environments which structure the document.  Will be ignored
for macros.  When omitted or @code{nil}, no TOC entries will be
made.
@end table

If the type indicator characters of two or more entries are the same,
@RefTeX{} will use
@itemize @minus
@item
the first non-@code{nil} format and prefix
@item
the magic words of all involved entries.
@end itemize

Any list entry may also be a symbol.  If that has an association in
@code{reftex-label-alist-builtin}, the @code{cddr} of that association is
spliced into the list.  However, builtin defaults should normally be set
with the variable @code{reftex-default-label-alist-entries}.
@end defopt

@defopt reftex-section-prefixes
Prefixes for section labels.  When the label prefix given in an entry in
@code{reftex-label-alist} contains @samp{%S}, this list is used to
determine the correct prefix string depending on the current section
level.  The list is an alist, with each entry of the form
@w{@code{(@var{key} . @var{prefix})}}. Possible keys are sectioning macro
names like @samp{chapter}, integer section levels (as given in
@code{reftex-section-levels}), and @code{t} for the default.
@end defopt

@defopt reftex-default-context-regexps
Alist with default regular expressions for finding context.  The emacs
lisp form @w{@code{(format regexp (regexp-quote environment))}} is used
to calculate the final regular expression, so @samp{%s} will be
replaced with the environment or macro.
@end defopt

@defopt reftex-trust-label-prefix
Non-@code{nil} means, trust the label prefix when determining label type.
It is customary to use special label prefixes to distinguish different label
types.  The label prefixes have no syntactic meaning in @LaTeX{} (unless
special packages like fancyref) are being used.  RefTeX can and by
default does parse around each label to detect the correct label type,
but this process can be slow when a document contains thousands of
labels.  If you use label prefixes consistently, you may speed up
document parsing by setting this variable to a non-@code{nil} value.  RefTeX
will then compare the label prefix with the prefixes found in
@code{reftex-label-alist} and derive the correct label type in this way.
Possible values for this option are:

@example
t       @r{This means to trust any label prefixes found.}
regexp  @r{If a regexp, only prefixes matched by the regexp are trusted.}
list    @r{List of accepted prefixes, as strings.  The colon is part of}
        @r{the prefix, e.g., ("fn:" "eqn:" "item:").}
nil     @r{Never trust a label prefix.}
@end example
The only disadvantage of using this feature is that the label context
displayed in the label selection buffer along with each label is
simply some text after the label definition.  This is no problem if you
place labels keeping this in mind (e.g., @i{before} the equation, @i{at
the beginning} of a fig/tab caption ...).  Anyway, it is probably best
to use the regexp or the list value types to fine-tune this feature.
For example, if your document contains thousands of footnotes with
labels fn:xxx, you may want to set this variable to the value "^fn:$" or
("fn:").  Then RefTeX will still do extensive parsing for any
non-footnote labels.
@end defopt

@node Options - Creating Labels
@section Creating Labels
@cindex Options, creating labels
@cindex Creating labels, options

@defopt reftex-insert-label-flags
Flags governing label insertion.  The value has the form

@example
(@var{derive} @var{prompt})
@end example

If @var{derive} is @code{t}, @RefTeX{} will try to derive a sensible
label from context.  A section label for example will be derived from
the section heading.  The conversion of the context to a valid label is
governed by the specifications given in
@code{reftex-derive-label-parameters}.  If @var{derive} is @code{nil},
the default label will consist of the prefix and a unique number, like
@samp{eq:23}.

If @var{prompt} is @code{t}, the user will be prompted for a label
string.  When @var{prompt} is @code{nil}, the default label will be
inserted without query.

So the combination of @var{derive} and @var{prompt} controls label
insertion.  Here is a table describing all four possibilities:

@example
@group
@var{derive} @var{prompt} @var{action}
-----------------------------------------------------------
nil    nil    @r{Insert simple label, like @samp{eq:22} or @samp{sec:13}. No query.}
nil    t      @r{Prompt for label.}
t      nil    @r{Derive a label from context and insert. No query.}
t      t      @r{Derive a label from context, prompt for confirmation.}
@end group
@end example

Each flag may be set to @code{t}, @code{nil}, or a string of label type
letters indicating the label types for which it should be true.  Thus,
the combination may be set differently for each label type.  The default
settings @samp{"s"} and @samp{"sft"} mean: Derive section labels from
headings (with confirmation).  Prompt for figure and table labels.  Use
simple labels without confirmation for everything else.

The available label types are: @code{s} (section), @code{f} (figure),
@code{t} (table), @code{i} (item), @code{e} (equation), @code{n}
(footnote), @code{N} (endnote) plus any definitions in
@code{reftex-label-alist}.
@end defopt

@deffn Hook reftex-format-label-function
If non-@code{nil}, should be a function which produces the string to
insert as a label definition.  The function will be called with two
arguments, the @var{label} and the @var{default-format} (usually
@samp{\label@{%s@}}).  It should return the string to insert into the
buffer.
@end deffn

@deffn Hook reftex-string-to-label-function
Function to turn an arbitrary string into a valid label.
@RefTeX{}'s default function uses the variable
@code{reftex-derive-label-parameters}.
@end deffn

@deffn Hook reftex-translate-to-ascii-function
Filter function which will process a context string before it is used to
derive a label from it.  The intended application is to convert ISO or
Mule characters into something valid in labels.  The default function
@code{reftex-latin1-to-ascii} removes the accents from Latin-1
characters.  X-Symbol (>=2.6) sets this variable to the much more
general @code{x-symbol-translate-to-ascii}.
@end deffn

@defopt reftex-derive-label-parameters
Parameters for converting a string into a label.  This variable is a
list of the following items:
@table @asis
@item @var{nwords}
Number of words to use.
@item @var{maxchar}
Maximum number of characters in a label string.
@item @var{invalid}
@code{nil}: Throw away any words containing characters invalid in labels.@*
@code{t}:   Throw away only the invalid characters, not the whole word.
@item @var{abbrev}
@code{nil}: Never abbreviate words.@*
@code{t}:   Always abbreviate words (see @code{reftex-abbrev-parameters}).@*
@code{1}:   Abbreviate words if necessary to shorten label string.
@item @var{separator}
String separating different words in the label.
@item @var{ignorewords}
List of words which should not be part of labels.
@item @var{downcase}
@code{t}:   Downcase words before putting them into the label.@*
@end table
@end defopt

@defopt reftex-label-illegal-re
Regexp matching characters not valid in labels.
@end defopt

@defopt reftex-abbrev-parameters
Parameters for abbreviation of words.  A list of four parameters.
@table @asis
@item @var{min-chars}
Minimum number of characters remaining after abbreviation.
@item @var{min-kill}
Minimum number of characters to remove when abbreviating words.
@item @var{before}
Character class before abbrev point in word.
@item @var{after}
Character class after  abbrev point in word.
@end table
@end defopt

@node Options - Referencing Labels
@section Referencing Labels
@cindex Options, referencing labels
@cindex Referencing labels, options

@defopt reftex-label-menu-flags
List of flags governing the label menu makeup. The flags are:
@table @asis
@item @var{table-of-contents}
Show the labels embedded in a table of context.
@item @var{section-numbers}
Include section numbers (like 4.1.3) in table of contents.
@item @var{counters}
Show counters.  This just numbers the labels in the menu.
@item @var{no-context}
Non-@code{nil} means do @emph{not} show the short context.
@item @var{follow}
Follow full context in other window.
@item @var{show-commented}
Show labels from regions which are commented out.
@item @var{match-everywhere}
Obsolete flag.
@item @var{show-files}
Show begin and end of included files.
@end table

Each of these flags can be set to @code{t} or @code{nil}, or to a string
of type letters indicating the label types for which it should be true.
These strings work like character classes in regular expressions.  Thus,
setting one of the flags to @samp{"sf"} makes the flag true for section
and figure labels, @code{nil} for everything else.  Setting it to
@samp{"^sf"} makes it the other way round.

The available label types are: @code{s} (section), @code{f} (figure),
@code{t} (table), @code{i} (item), @code{e} (equation), @code{n}
(footnote), plus any definitions in @code{reftex-label-alist}.

Most options can also be switched from the label menu itself, so if you
decide here to not have a table of contents in the label menu, you can
still get one interactively during selection from the label menu.
@end defopt

@defopt reftex-multiref-punctuation
Punctuation strings for multiple references.  When marking is used in
the selection buffer to select several references, this variable
associates the 3 marking characters @samp{,-+} with prefix strings to be
inserted into the buffer before the corresponding @code{\ref} macro.
This is used to string together whole reference sets, like
@samp{eqs. 1,2,3-5,6 and 7} in a single call to
@code{reftex-reference}.
@end defopt

@defopt reftex-ref-style-alist
Alist of reference styles.  Each element is a list of the style name,
the name of the @LaTeX{} package associated with the style or @code{t}
for any package, and an alist of macros where the first entry of each
item is the reference macro and the second a key for selecting the macro
when the macro type is being prompted for.  (See also
@code{reftex-ref-macro-prompt}.)  The keys, represented as characters,
have to be unique.
@end defopt

@defopt reftex-ref-style-default-list
List of reference styles to be activated by default.  The order is
significant and controls the order in which macros can be cycled in the
buffer for selecting a label.  The entries in the list have to match the
respective reference style names used in the variable
@code{reftex-ref-style-alist}.
@end defopt

@defopt reftex-ref-macro-prompt
Controls if @code{reftex-reference} prompts for the reference macro.
@end defopt

@deffn Hook reftex-format-ref-function
If non-@code{nil}, should be a function which produces the string to
insert as a reference.  Note that the insertion format can also be
changed with @code{reftex-label-alist}.  This hook also is used by the
special commands to insert, e.g., @code{\vref} and @code{\fref}
references, so even if you set this, your setting will be ignored by the
special commands.  The function will be called with three arguments, the
@var{label}, the @var{default format} which normally is
@samp{~\ref@{%s@}} and the @var{reference style}.  The function should
return the string to insert into the buffer.
@end deffn

@defopt reftex-level-indent
Number of spaces to be used for indentation per section level.
@end defopt

@defopt reftex-guess-label-type
Non-@code{nil} means, @code{reftex-reference} will try to guess the
label type.  To do that, @RefTeX{} will look at the word before the
cursor and compare it with the magic words given in
@code{reftex-label-alist}.  When it finds a match, @RefTeX{} will
immediately offer the correct label menu; otherwise it will prompt you
for a label type.  If you set this variable to @code{nil}, @RefTeX{}
will always prompt for a label type.
@end defopt

@deffn {Normal Hook} reftex-display-copied-context-hook
Normal Hook which is run before context is displayed anywhere.  Designed
for @w{@code{X-Symbol}}, but may have other uses as well.
@end deffn

@deffn Hook reftex-pre-refontification-functions
@code{X-Symbol} specific hook.  Probably not useful for other purposes.
The functions get two arguments, the buffer from where the command
started and a symbol indicating in what context the hook is
called.
@end deffn

@deffn {Normal Hook} reftex-select-label-mode-hook
Normal hook which is run when a selection buffer enters
@code{reftex-select-label-mode}.
@end deffn

@deffn Keymap reftex-select-label-map
The keymap which is active in the labels selection process
(@pxref{Referencing Labels}).
@end deffn

@node Options - Creating Citations
@section Creating Citations
@cindex Options, creating citations
@cindex Creating citations, options

@defopt reftex-bibliography-commands
@LaTeX{} commands which specify the @BibTeX{} databases to use with the document.
@end defopt

@defopt reftex-bibfile-ignore-regexps
List of regular expressions to exclude files in
@code{\\bibliography@{..@}}.  File names matched by any of these regexps
will not be parsed.  Intended for files which contain only
@code{@@string} macro definitions and the like, which are ignored by
@RefTeX{} anyway.
@end defopt

@defopt reftex-default-bibliography
List of @BibTeX{} database files which should be used if none are specified.
When @code{reftex-citation} is called from a document with neither
a @samp{\bibliography@{...@}} statement nor a @code{thebibliography}
environment, @RefTeX{} will scan these files instead.  Intended for
using @code{reftex-citation} in non-@LaTeX{} files.  The files will be
searched along the BIBINPUTS or TEXBIB path.
@end defopt

@defopt reftex-sort-bibtex-matches
Sorting of the entries found in @BibTeX{} databases by reftex-citation.
Possible values:
@example
nil          @r{Do not sort entries.}
author       @r{Sort entries by author name.}
year         @r{Sort entries by increasing year.}
reverse-year @r{Sort entries by decreasing year.}
@end example
@end defopt

@defopt reftex-cite-format
The format of citations to be inserted into the buffer.  It can be a
string, an alist or a symbol.  In the simplest case this is just the string
@samp{\cite@{%l@}}, which is also the default.  See the definition of
@code{reftex-cite-format-builtin} for more complex examples.

If @code{reftex-cite-format} is a string, it will be used as the format.
In the format, the following percent escapes will be expanded.

@table @code
@item %l
The @BibTeX{} label of the citation.
@item %a
List of author names, see also @code{reftex-cite-punctuation}.
@item %2a
Like %a, but abbreviate more than 2 authors like Jones et al.
@item %A
First author name only.
@item %e
Works like @samp{%a}, but on list of editor names. (@samp{%2e} and
@samp{%E} work a well).
@end table

It is also possible to access all other @BibTeX{} database fields:

@example
%b booktitle     %c chapter        %d edition    %h howpublished
%i institution   %j journal        %k key        %m month
%n number        %o organization   %p pages      %P first page
%r address       %s school         %u publisher  %t title
%v volume        %y year
%B booktitle, abbreviated          %T title, abbreviated
@end example

@noindent
Usually, only @samp{%l} is needed.  The other stuff is mainly for the
echo area display, and for @code{(setq reftex-comment-citations t)}.

@samp{%<} as a special operator kills punctuation and space around it
after the string has been formatted.

A pair of square brackets indicates an optional argument, and RefTeX
will prompt for the values of these arguments.

Beware that all this only works with @BibTeX{} database files.  When
citations are made from the @code{\bibitems} in an explicit
@code{thebibliography} environment, only @samp{%l} is available.

If @code{reftex-cite-format} is an alist of characters and strings, the
user will be prompted for a character to select one of the possible
format strings.

In order to configure this variable, you can either set
@code{reftex-cite-format} directly yourself or set it to the
@emph{symbol} of one of the predefined styles.  The predefined symbols
are those which have an association in the constant
@code{reftex-cite-format-builtin})  E.g.: @code{(setq reftex-cite-format
'natbib)}.
@end defopt

@deffn Hook reftex-format-cite-function
If non-@code{nil}, should be a function which produces the string to
insert as a citation.  Note that the citation format can also be changed
with the variable @code{reftex-cite-format}.  The function will be
called with two arguments, the @var{citation-key} and the
@var{default-format} (taken from @code{reftex-cite-format}).  It should
return the string to insert into the buffer.
@end deffn

@defopt reftex-cite-prompt-optional-args
Non-@code{nil} means, prompt for empty optional arguments in cite macros.
When an entry in @code{reftex-cite-format} is given with square brackets to
indicate optional arguments (for example @samp{\\cite[][]@{%l@}}), RefTeX can
prompt for values.  Possible values are:
@example
nil     @r{Never prompt for optional arguments}
t       @r{Always prompt}
maybe   @r{Prompt only if @code{reftex-citation} was called with C-u prefix arg}
@end example
Unnecessary empty optional arguments are removed before insertion into
the buffer.  See @code{reftex-cite-cleanup-optional-args}.
@end defopt

@defopt reftex-cite-cleanup-optional-args
Non-@code{nil} means, remove empty optional arguments from cite macros
if possible.
@end defopt

@defopt reftex-comment-citations
Non-@code{nil} means add a comment for each citation describing the full
entry.  The comment is formatted according to
@code{reftex-cite-comment-format}.
@end defopt

@defopt reftex-cite-comment-format
Citation format used for commented citations.  Must @emph{not} contain
@samp{%l}.  See the variable @code{reftex-cite-format} for possible
percent escapes.
@end defopt

@defopt reftex-cite-punctuation
Punctuation for formatting of name lists in citations.  This is a list
of 3 strings.
@enumerate
@item
normal names separator, like @samp{, } in Jones, Brown and Miller
@item
final names separator, like @samp{ and }  in Jones, Brown and Miller
@item
The @samp{et al.} string, like @samp{ @{\it et al.@}} in
Jones @{\it et al.@}
@end enumerate
@end defopt

@deffn {Normal Hook} reftex-select-bib-mode-hook
Normal hook which is run when a selection buffer enters
@code{reftex-select-bib-mode}.
@end deffn

@deffn Keymap reftex-select-bib-map
The keymap which is active in the citation-key selection process
(@pxref{Creating Citations}).
@end deffn

@defopt reftex-cite-key-separator
String used to separate several keys in a single @samp{\\cite} macro.
Per default this is @samp{","} but if you often have to deal with a lot
of entries and need to break the macro across several lines you might
want to change it to @samp{", "}.
@end defopt

@defopt reftex-create-bibtex-header
Header to insert in BibTeX files generated by
@code{reftex-create-bibtex-file}.
@end defopt

@defopt reftex-create-bibtex-footer
Footer to insert in BibTeX files generated by
@code{reftex-create-bibtex-file}.
@end defopt


@node Options - Index Support, Options - Viewing Cross-References, Options - Creating Citations,  Options
@section Index Support
@cindex Options, Index support
@cindex Index support, options

@defopt reftex-support-index
Non-@code{nil} means, index entries are parsed as well.  Index support
is resource intensive and the internal structure holding the parsed
information can become quite big.  Therefore it can be turned off.  When
this is @code{nil} and you execute a command which requires index
support, you will be asked for confirmation to turn it on and rescan the
document.
@end defopt

@defopt reftex-index-special-chars
List of special characters in index entries, given as strings.  These
correspond to the @code{MakeIndex} keywords
@code{(@var{level} @var{encap} @var{actual} @var{quote} @var{escape})}.
@end defopt

@defopt reftex-index-macros
List of macros which define index entries.  The structure of each entry
is
@lisp
(@var{macro} @var{index-tag} @var{key} @var{prefix} @var{exclude} @var{repeat})
@end lisp

@var{macro} is the macro.  Arguments should be denoted by empty braces,
as for example in @samp{\index[]@{*@}}.  Use square brackets to denote
optional arguments.  The star marks where the index key is.

@var{index-tag} is a short name of the index.  @samp{idx} and @samp{glo}
are reserved for the default index and the glossary.  Other indices can
be defined as well.  If this is an integer, the Nth argument of the
macro holds the index tag.

@var{key} is a character which is used to identify the macro for input
with @code{reftex-index}.  @samp{?i}, @samp{?I}, and @samp{?g} are
reserved for default index and glossary.

@var{prefix} can be a prefix which is added to the @var{key} part of the
index entry.  If you have a macro
@code{\newcommand@{\molec@}[1]@{#1\index@{Molecules!#1@}}, this prefix
should be @samp{Molecules!}.

@var{exclude} can be a function.  If this function exists and returns a
non-@code{nil} value, the index entry at point is ignored.  This was
implemented to support the (deprecated) @samp{^} and @samp{_} shortcuts
in the @LaTeX{}2e @code{index} package.

@var{repeat}, if non-@code{nil}, means the index macro does not typeset
the entry in the text, so that the text has to be repeated outside the
index macro.  Needed for @code{reftex-index-selection-or-word} and for
indexing from the phrase buffer.

The final entry may also be a symbol.  It must have an association in
the variable @code{reftex-index-macros-builtin} to specify the main
indexing package you are using.  Valid values are currently
@example
default         @r{The @LaTeX{} default; unnecessary to specify this one}
multind         @r{The multind.sty package}
index           @r{The index.sty package}
index-shortcut  @r{The index.sty packages with the ^ and _ shortcuts.}
                @r{Should not be used; only for old documents}
@end example
Note that @AUCTeX{} sets these things internally for @RefTeX{} as well,
so with a sufficiently new version of @AUCTeX{}, you should not set the
package here.
@end defopt

@defopt reftex-index-default-macro
The default index macro for @code{reftex-index-selection-or-word}.
This is a list with @code{(@var{macro-key} @var{default-tag})}.

@var{macro-key} is a character identifying an index macro; see
@code{reftex-index-macros}.

@var{default-tag} is the tag to be used if the macro requires a
@var{tag} argument.  When this is @code{nil} and a @var{tag} is needed,
@RefTeX{} will ask for it.  When this is the empty string and the
TAG argument of the index macro is optional, the TAG argument will be
omitted.
@end defopt

@defopt reftex-index-default-tag
Default index tag.  When working with multiple indexes, RefTeX queries
for an index tag when creating index entries or displaying a specific
index.  This variable controls the default offered for these queries.
The default can be selected with @key{RET} during selection or
completion.  Valid values of this variable are:
@example
nil        @r{Do not provide a default index}
"tag"      @r{The default index tag given as a string, e.g., "idx"}
last       @r{The last used index tag will be offered as default}
@end example
@end defopt

@defopt reftex-index-math-format
Format of index entries when copied from inside math mode.  When
@code{reftex-index-selection-or-word} is executed inside @TeX{} math mode,
the index key copied from the buffer is processed with this format
string through the @code{format} function.  This can be used to add the
math delimiters (e.g., @samp{$}) to the string.  Requires the
@file{texmathp.el} library which is part of @AUCTeX{}.
@end defopt

@defopt reftex-index-phrase-file-extension
File extension for the index phrase file.  This extension will be added
to the base name of the master file.
@end defopt

@defopt reftex-index-phrases-logical-and-regexp
Regexp matching the @samp{and} operator for index arguments in phrases
file.  When several index arguments in a phrase line are separated by
this operator, each part will generate an index macro.  So each match of
the search phrase will produce @emph{several} different index entries.
Make sure this does no match things which are not separators.  This
logical @samp{and} has higher priority than the logical @samp{or}
specified in @code{reftex-index-phrases-logical-or-regexp}.
@end defopt

@defopt reftex-index-phrases-logical-or-regexp
Regexp matching the @samp{or} operator for index arguments in phrases
file.  When several index arguments in a phrase line are separated by
this operator, the user will be asked to select one of them at each
match of the search phrase.  The first index arg will be the default.  A
number key @kbd{1}--@kbd{9} must be pressed to switch to another.  Make
sure this does no match things which are not separators.  The logical
@samp{and} specified in @code{reftex-index-phrases-logical-or-regexp}
has higher priority than this logical @samp{or}.
@end defopt

@defopt reftex-index-phrases-search-whole-words
Non-@code{nil} means phrases search will look for whole words, not subwords.
This works by requiring word boundaries at the beginning and end of
the search string.  When the search phrase already has a non-word-char
at one of these points, no word boundary is required there.
@end defopt

@defopt reftex-index-phrases-case-fold-search
Non-@code{nil} means, searching for index phrases will ignore
case.
@end defopt

@defopt reftex-index-verify-function
A function which is called at each match during global indexing.
If the function returns @code{nil}, the current match is skipped.
@end defopt

@defopt reftex-index-phrases-skip-indexed-matches
Non-@code{nil} means, skip matches which appear to be indexed already.
When doing global indexing from the phrases buffer, searches for some
phrases may match at places where that phrase was already indexed.  In
particular when indexing an already processed document again, this
will even be the norm.  When this variable is non-@code{nil},
@RefTeX{} checks if the match is an index macro argument, or if an
index macro is directly before or after the phrase.  If that is the
case, that match will be ignored.
@end defopt

@defopt reftex-index-phrases-wrap-long-lines
Non-@code{nil} means, when indexing from the phrases buffer, wrap lines.
Inserting indexing commands in a line makes the line longer, often
so long that it does not fit onto the screen.  When this variable is
non-@code{nil}, newlines will be added as necessary before and/or after the
indexing command to keep lines short.  However, the matched text
phrase and its index command will always end up on a single line.
@end defopt

@defopt reftex-index-phrases-sort-prefers-entry
Non-@code{nil} means when sorting phrase lines, the explicit index entry
is used. Phrase lines in the phrases buffer contain a search phrase, and
sorting is normally based on these.  Some phrase lines also have
an explicit index argument specified.  When this variable is
non-@code{nil}, the index argument will be used for sorting.
@end defopt

@defopt reftex-index-phrases-sort-in-blocks
Non-@code{nil} means, empty and comment lines separate phrase buffer
into blocks.  Sorting will then preserve blocks, so that lines are
re-arranged only within blocks.
@end defopt

@defopt reftex-index-phrases-map
Keymap for the Index Phrases buffer.
@end defopt

@defopt reftex-index-phrases-mode-hook
Normal hook which is run when a buffer is put into
@code{reftex-index-phrases-mode}.
@end defopt

@defopt reftex-index-section-letters
The letters which denote sections in the index.  Usually these are all
capital letters.  Don't use any downcase letters.  Order is not
significant, the index will be sorted by whatever the sort function
thinks is correct.  In addition to these letters, @RefTeX{} will
create a group @samp{!} which contains all entries sorted below the
lowest specified letter.  In the @file{*Index*} buffer, pressing any of
these capital letters or @kbd{!} will jump to that section.
@end defopt

@defopt reftex-index-include-context
Non-@code{nil} means, display the index definition context in the
@file{*Index*} buffer.  This flag may also be toggled from the
@file{*Index*} buffer with the @kbd{c} key.
@end defopt

@defopt reftex-index-follow-mode
Non-@code{nil} means, point in @file{*Index*} buffer will cause other
window to follow.  The other window will show the corresponding part of
the document.  This flag can be toggled from within the @file{*Index*}
buffer with the @kbd{f} key.
@end defopt

@deffn Keymap reftex-index-map
The keymap which is active in the @file{*Index*} buffer
(@pxref{Index Support}).
@end deffn

@node Options - Viewing Cross-References
@section Viewing Cross-References
@cindex Options, viewing cross-references
@cindex Viewing cross-references, options

@defopt reftex-view-crossref-extra
Macros which can be used for the display of cross references.
This is used when @code{reftex-view-crossref} is called with point in an
argument of a macro.  Note that crossref viewing for citations,
references (both ways) and index entries is hard-coded.  This variable
is only to configure additional structures for which crossreference
viewing can be useful.  Each entry has the structure
@example
(@var{macro-re} @var{search-re} @var{highlight}).
@end example
@var{macro-re} is matched against the macro.  @var{search-re} is the
regexp used to search for cross references.  @samp{%s} in this regexp is
replaced with the macro argument at point.  @var{highlight} is an
integer indicating which subgroup of the match should be highlighted.
@end defopt

@defopt reftex-auto-view-crossref
Non-@code{nil} means, initially turn automatic viewing of crossref info
on.  Automatic viewing of crossref info normally uses the echo area.
Whenever point is idle for more than @code{reftex-idle-time} seconds on
the argument of a @code{\ref} or @code{\cite} macro, and no other
message is being displayed, the echo area will display information about
that cross reference.  You can also set the variable to the symbol
@code{window}.  In this case a small temporary window is used for the
display.  This feature can be turned on and off from the menu
(Ref->Options).
@end defopt

@defopt reftex-idle-time
Time (secs) Emacs has to be idle before automatic crossref display
or toc recentering is done.
@end defopt

@defopt reftex-cite-view-format
Citation format used to display citation info in the message area.  See
the variable @code{reftex-cite-format} for possible percent
escapes.
@end defopt

@defopt reftex-revisit-to-echo
Non-@code{nil} means, automatic citation display will revisit files if
necessary.  When @code{nil}, citation display in echo area will only be active
for cached echo strings (see @code{reftex-cache-cite-echo}), or for
@BibTeX{} database files which are already visited by a live associated
buffers.
@end defopt

@defopt reftex-cache-cite-echo
Non-@code{nil} means, the information displayed in the echo area for
cite macros (see variable @code{reftex-auto-view-crossref}) is cached and
saved along with the parsing information.  The cache survives document
scans.  In order to clear it, use @kbd{M-x reftex-reset-mode}.
@end defopt

@node Options - Finding Files
@section Finding Files
@cindex Options, Finding Files
@cindex Finding files, options

@defopt reftex-texpath-environment-variables
List of specifications how to retrieve the search path for @TeX{} files.
Several entries are possible.
@itemize @minus
@item
If an element is the name of an environment variable, its content is
used.
@item
If an element starts with an exclamation mark, it is used as a command
to retrieve the path.  A typical command with the kpathsearch library
would be @w{@code{"!kpsewhich -show-path=.tex"}}.
@item
Otherwise the element itself is interpreted as a path.
@end itemize
Multiple directories can be separated by the system dependent
@code{path-separator}.  Directories ending in @samp{//} or @samp{!!} will
be expanded recursively.  See also @code{reftex-use-external-file-finders}.
@end defopt

@defopt reftex-bibpath-environment-variables
List of specifications how to retrieve the search path for @BibTeX{}
files.  Several entries are possible.
@itemize @minus
@item
If an element is the name of an environment variable, its content is
used.
@item
If an element starts with an exclamation mark, it is used as a command
to retrieve the path.  A typical command with the kpathsearch library
would be @w{@code{"!kpsewhich -show-path=.bib"}}.
@item
Otherwise the element itself is interpreted as a path.
@end itemize
Multiple directories can be separated by the system dependent
@code{path-separator}.  Directories ending in @samp{//} or @samp{!!} will
be expanded recursively.  See also @code{reftex-use-external-file-finders}.
@end defopt

@defopt reftex-file-extensions
Association list with file extensions for different file types.
This is a list of items, each item is like:
@code{(@var{type} . (@var{def-ext} @var{other-ext} ...))}
@example
@var{type}:       @r{File type like @code{"bib"} or @code{"tex"}.}
@var{def-ext}:    @r{The default extension for that file type, like @code{".tex"} or @code{".bib"}.}
@var{other-ext}:  @r{Any number of other valid extensions for this file type.}
@end example
When a files is searched and it does not have any of the valid extensions,
we try the default extension first, and then the naked file name.
@end defopt

@defopt reftex-search-unrecursed-path-first
Non-@code{nil} means, search all specified directories before trying
recursion.  Thus, in a path @samp{.//:/tex/}, search first @samp{./},
then @samp{/tex/}, and then all subdirectories of @samp{./}.  If this
option is @code{nil}, the subdirectories of @samp{./} are searched
before @samp{/tex/}.  This is mainly for speed; most of the time the
recursive path is for the system files and not for the user files.  Set
this to @code{nil} if the default makes @RefTeX{} finding files with
equal names in wrong sequence.
@end defopt

@defopt reftex-use-external-file-finders
Non-@code{nil} means, use external programs to find files.  Normally,
@RefTeX{} searches the paths given in the environment variables
@code{TEXINPUTS} and @code{BIBINPUTS} to find @TeX{} files and @BibTeX{}
database files.  With this option turned on, it calls an external
program specified in the option @code{reftex-external-file-finders}
instead.  As a side effect, the variables
@code{reftex-texpath-environment-variables} and
@code{reftex-bibpath-environment-variables} will be ignored.
@end defopt

@defopt reftex-external-file-finders
Association list with external programs to call for finding files.  Each
entry is a cons cell @w{@code{(@var{type} . @var{program})}}.
@var{type} is either @code{"tex"} or @code{"bib"}.  @var{program} is a
string containing the external program to use with any arguments.
@code{%f} will be replaced by the name of the file to be found.  Note
that these commands will be executed directly, not via a shell.  Only
relevant when @code{reftex-use-external-file-finders} is
non-@code{nil}.
@end defopt

@page
@node Options - Optimizations
@section Optimizations
@cindex Options, optimizations
@cindex Optimizations, options

@defopt reftex-keep-temporary-buffers
Non-@code{nil} means, keep buffers created for parsing and lookup.
@RefTeX{} sometimes needs to visit files related to the current
document.  We distinguish files visited for
@table @asis
@item PARSING
Parts of a multifile document loaded when (re)-parsing the
document.
@item LOOKUP
@BibTeX{} database files and @TeX{} files loaded to find a reference, to
display label context, etc.
@end table
The created buffers can be kept for later use, or be thrown away
immediately after use, depending on the value of this variable:

@table @code
@item nil
Throw away as much as possible.
@item t
Keep everything.
@item 1
Throw away buffers created for parsing, but keep the ones created for
lookup.
@end table

If a buffer is to be kept, the file is visited normally (which is
potentially slow but will happen only once). If a buffer is to be thrown
away, the initialization of the buffer depends upon the variable
@code{reftex-initialize-temporary-buffers}.
@end defopt

@defopt reftex-initialize-temporary-buffers
Non-@code{nil} means do initializations even when visiting file
temporarily.  When @code{nil}, @RefTeX{} may turn off find-file hooks and
other stuff to briefly visit a file. When @code{t}, the full default
initializations are done (@code{find-file-hook} etc.).  Instead of
@code{t} or @code{nil}, this variable may also be a list of hook
functions to do a minimal initialization.
@end defopt

@defopt reftex-no-include-regexps
List of regular expressions to exclude certain input files from parsing.
If the name of a file included via @code{\include} or @code{\input} is
matched by any of the regular expressions in this list, that file is not
parsed by @RefTeX{}.
@end defopt

@defopt reftex-enable-partial-scans
Non-@code{nil} means, re-parse only 1 file when asked to re-parse.
Re-parsing is normally requested with a @kbd{C-u} prefix to many @RefTeX{}
commands, or with the @kbd{r} key in menus.  When this option is
@code{t} in a multifile document, we will only parse the current buffer,
or the file associated with the label or section heading near point in a
menu.  Requesting re-parsing of an entire multifile document then
requires a @kbd{C-u C-u} prefix or the capital @kbd{R} key in
menus.
@end defopt

@defopt reftex-save-parse-info
Non-@code{nil} means, save information gathered with parsing in files.
The file @file{MASTER.rel} in the same directory as @file{MASTER.tex} is
used to save the information.  When this variable is @code{t},
@itemize @minus
@item
accessing the parsing information for the first time in an editing
session will read that file (if available) instead of parsing the
document.
@item
exiting Emacs or killing a buffer in reftex-mode will cause a new
version of the file to be written.
@end itemize
@end defopt

@defopt reftex-parse-file-extension
File extension for the file in which parser information is stored.
This extension is added to the base name of the master file.
@end defopt

@defopt reftex-allow-automatic-rescan
Non-@code{nil} means, @RefTeX{} may rescan the document when this seems
necessary.  Applies (currently) only in rare cases, when a new label
cannot be placed with certainty into the internal label list.
@end defopt

@defopt reftex-use-multiple-selection-buffers
Non-@code{nil} means use a separate selection buffer for each label
type.  These buffers are kept from one selection to the next and need
not be created for each use, so the menu generally comes up faster.
The selection buffers will be erased (and therefore updated)
automatically when new labels in its category are added.  See the
variable @code{reftex-auto-update-selection-buffers}.
@end defopt

@defopt reftex-auto-update-selection-buffers
Non-@code{nil} means, selection buffers will be updated automatically.
When a new label is defined with @code{reftex-label}, all selection
buffers associated with that label category are emptied, in order to
force an update upon next use.  When @code{nil}, the buffers are left
alone and have to be updated by hand, with the @kbd{g} key from the
label selection process.  The value of this variable will only have any
effect when @code{reftex-use-multiple-selection-buffers} is
non-@code{nil}.
@end defopt

@node Options - Fontification
@section Fontification
@cindex Options, fontification
@cindex Fontification, options

@defopt reftex-use-fonts
Non-@code{nil} means, use fonts in label menu and on-the-fly help.
Font-lock must be loaded as well to actually get fontified
display.  After changing this option, a rescan may be necessary to
activate it.
@end defopt

@defopt reftex-refontify-context
Non-@code{nil} means, re-fontify the context in the label menu with
font-lock.  This slightly slows down the creation of the label menu.  It
is only necessary when you definitely want the context fontified.

This option may have 3 different values:
@table @code
@item nil
Never refontify.
@item t
Always refontify.
@item 1
Refontify when necessary, e.g., with old versions of the x-symbol
package.
@end table
The option is ignored when @code{reftex-use-fonts} is @code{nil}.
@end defopt

@defopt reftex-highlight-selection
Non-@code{nil} means, highlight selected text in selection and
@file{*toc*} buffers.  Normally, the text near the cursor is the
@emph{selected} text, and it is highlighted.  This is the entry most
keys in the selection and @file{*toc*} buffers act on.  However, if you
mainly use the mouse to select an item, you may find it nice to have
mouse-triggered highlighting @emph{instead} or @emph{as well}. The
variable may have one of these values:

@example
nil      @r{No highlighting.}
cursor   @r{Highlighting is cursor driven.}
mouse    @r{Highlighting is mouse driven.}
both     @r{Both cursor and mouse trigger highlighting.}
@end example

Changing this variable requires rebuilding the selection and *toc*
buffers to become effective (keys @kbd{g} or @kbd{r}).
@end defopt

@defopt reftex-cursor-selected-face
Face name to highlight cursor selected item in toc and selection buffers.
See also the variable @code{reftex-highlight-selection}.
@end defopt
@defopt reftex-mouse-selected-face
Face name to highlight mouse selected item in toc and selection buffers.
See also the variable @code{reftex-highlight-selection}.
@end defopt
@defopt reftex-file-boundary-face
Face name for file boundaries in selection buffer.
@end defopt
@defopt reftex-label-face
Face name for labels in selection buffer.
@end defopt
@defopt reftex-section-heading-face
Face name for section headings in toc and selection buffers.
@end defopt
@defopt reftex-toc-header-face
Face name for the header of a toc buffer.
@end defopt
@defopt reftex-bib-author-face
Face name for author names in bib selection buffer.
@end defopt
@defopt reftex-bib-year-face
Face name for year in bib selection buffer.
@end defopt
@defopt reftex-bib-title-face
Face name for article title in bib selection buffer.
@end defopt
@defopt reftex-bib-extra-face
Face name for bibliographic information in bib selection buffer.
@end defopt
@defopt reftex-select-mark-face
Face name for marked entries in the selection buffers.
@end defopt
@defopt reftex-index-header-face
Face name for the header of an index buffer.
@end defopt
@defopt reftex-index-section-face
Face name for the start of a new letter section in the index.
@end defopt
@defopt reftex-index-tag-face
Face name for index names (for multiple indices).
@end defopt
@defopt reftex-index-face
Face name for index entries.
@end defopt

@node Options - Misc
@section Miscellaneous
@cindex Options, misc

@defopt reftex-extra-bindings
Non-@code{nil} means, make additional key bindings on startup.  These
extra bindings are located in the users @samp{C-c letter}
map.  @xref{Key Bindings}.
@end defopt

@defopt reftex-plug-into-AUCTeX
Plug-in flags for @AUCTeX{} interface.  This variable is a list of
5 boolean flags.  When a flag is non-@code{nil}, @RefTeX{}
will

@example
- supply labels in new sections and environments  (flag 1)
- supply arguments for macros like @code{\label}         (flag 2)
- supply arguments for macros like @code{\ref}           (flag 3)
- supply arguments for macros like @code{\cite}          (flag 4)
- supply arguments for macros like @code{\index}         (flag 5)
@end example

You may also set the variable itself to @code{t} or @code{nil} in
order to turn all options on or off, respectively.@*
Supplying labels in new sections and environments applies when creating
sections with @kbd{C-c C-s} and environments with @kbd{C-c C-e}.@*
Supplying macro arguments applies when you insert such a macro
interactively with @kbd{C-c @key{RET}}.@*
See the @AUCTeX{} documentation for more information.
@end defopt

@defopt reftex-revisit-to-follow
Non-@code{nil} means, follow-mode will revisit files if necessary.
When @code{nil}, follow-mode will be suspended for stuff in unvisited files.
@end defopt

@defopt reftex-allow-detached-macro-args
Non-@code{nil} means, allow arguments of macros to be detached by
whitespace.  When this is @code{t}, the @samp{aaa} in @w{@samp{\bbb
[xxx] @{aaa@}}} will be considered an argument of @code{\bb}.  Note that
this will be the case even if @code{\bb} is defined with zero or one
argument.
@end defopt

@node Keymaps and Hooks
@section Keymaps and Hooks
@cindex Keymaps

@RefTeX{} has the usual general keymap, load hook and mode hook.

@deffn Keymap reftex-mode-map
The keymap for @RefTeX{} mode.
@end deffn

@deffn {Normal Hook} reftex-load-hook
Normal hook which is being run when loading @file{reftex.el}.
@end deffn

@deffn {Normal Hook} reftex-mode-hook
Normal hook which is being run when turning on @RefTeX{} mode.
@end deffn

Furthermore, the four modes used for referencing labels, creating
citations, the table of contents buffer and the phrases buffer have
their own keymaps and mode hooks.  See the respective sections.  There
are many more hooks which are described in the relevant sections about
options for a specific part of @RefTeX{}.

@node Changes
@chapter Changes
@cindex Changes

Here is a list of recent changes to @RefTeX{}.

@noindent @b{Version 4.33}

@itemize @bullet
@item
Update to GPLv3.
@item
Parse files are created in a way that does not interfere with recentf
mode.
@end itemize

@noindent @b{Version 4.32}

@itemize @bullet
@item
First release by @AUCTeX{} project.
@item
Installation routine rewritten after structure of source package
changed.
@item
Activation of @RefTeX{} changed, so make sure you read the installation
instructions and remove obsolete cruft related to @RefTeX{} from your
init file.
@item
Fixed bug where point would end up in the wrong buffer when jumping
between several @LaTeX{} and phrases buffers.
@item
Fixed bug where @BibTeX{} keys with hyphens were parsed incorrectly.
@item
Some performance improvements.
@item
The separator used between multiple citations in a \cite macro can now
be changed by customizing the variable @code{reftex-cite-key-separator}.
@end itemize

@noindent @b{Version 4.28}
@itemize @bullet
@item Support for the Jurabib package.
@item Improvements when selecting several items in a selection buffer.
@end itemize

@noindent @b{Version 4.26}
@itemize @bullet
@item
Support for global incremental search.
@item
Some improvements for XEmacs compatibility.
@end itemize

@noindent @b{Version 4.25}
@itemize @bullet
@item
Fixed bug with @samp{%F} in a label prefix.  Added new escapes
@samp{%m} and @samp{%M} for mater file name and master directory.
@end itemize

@noindent @b{Version 4.24}
@itemize @bullet
@item
Inserting citation commands now prompts for optional arguments
when called with a prefix argument.  Related new options are
@code{reftex-cite-prompt-optional-args} and
@code{reftex-cite-cleanup-optional-args}.
@item
New option @code{reftex-trust-label-prefix}.  Configure this variable
if you'd like RefTeX to base its classification of labels on prefixes.
This can speed-up document parsing, but may in some cases reduce the
quality of the context used by RefTeX to describe a label.
@item
Fixed bug in @code{reftex-create-bibtex-file} when
@code{reftex-comment-citations} is non-@code{nil}.
@item
Fixed bugs in indexing: Case-sensitive search, quotes before and/or
after words.  Disabled indexing in comment lines.
@end itemize

@noindent @b{Version 4.22}
@itemize @bullet
@item
New command @code{reftex-create-bibtex-file} to create a new database
with all entries referenced in the current document.
@item
New keys @kbd{e} and @kbd{E} allow you to produce a BibTeX database
file from entries marked in a citation selection buffer.
@end itemize

@noindent @b{Version 4.21}
@itemize @bullet
@item
Renaming labels from the toc buffer with key @kbd{M-%}.
@end itemize

@noindent @b{Version 4.20}
@itemize @bullet
@item
Structure editing capabilities.  The command keys @kbd{<} and @kbd{>} in
the TOC buffer promote/demote the section at point or all sections in
the current region.
@item
New option @code{reftex-toc-split-windows-fraction} to set the size of
the window used by the TOC@.  This makes the old variable
@code{reftex-toc-split-windows-horizontally-fraction} obsolete.
@item
A dedicated frame can show the TOC with the current section
always automatically highlighted.  The frame is created and
deleted from the toc buffer with the @kbd{d} key.
@end itemize

@noindent @b{Version 4.19}
@itemize @bullet
@item
New command @code{reftex-toc-recenter} (@kbd{C-c -}) which shows the current
section in the TOC buffer without selecting the TOC window.
@item
Recentering happens automatically in idle time when the option
@code{reftex-auto-recenter-toc} is turned on.
@item
Fixed several bugs related to automatic cursor positioning in the TOC
buffer.
@item
The highlight in the TOC buffer stays when the focus moves to a
different window.
@item
New command @code{reftex-goto-label}.
@item
Part numbers are no longer included in chapter numbers, and a new
part does not reset the chapter counter.  See new option
@code{reftex-part-resets-chapter}.
@end itemize

@noindent @b{Version 4.18}
@itemize @bullet
@item
@code{reftex-citation} uses the word before the cursor as a default
search string.
@item
Simplified several regular expressions for speed.
@item
Better support for chapterbib.
@end itemize

@noindent @b{Version 4.17}
@itemize @bullet
@item
The toc window can be split off horizontally.  See new options
@code{reftex-toc-split-windows-horizontally},
@code{reftex-toc-split-windows-horizontally-fraction}.
@item
It is possible to specify a function which verifies an index match
during global indexing.  See new option @code{reftex-index-verify-function}.
@item
The macros which input a file in LaTeX (like \input, \include) can
be configured.  See new option @code{reftex-include-file-commands}.
@item
The macros which specify the bibliography file (like \bibliography) can
be configured.  See new option @code{reftex-bibliography-commands}.
@item
The regular expression used to search for the \bibliography macro has
been relaxed to allow for @samp{@{\bibliography@{...@}@}} needed by
chapterbib.
@item
Small bug fixes.
@end itemize

@noindent @b{Version 4.15}
@itemize @bullet
@item
Fixed bug with parsing of BibTeX files, when fields contain quotes or
unmatched parenthesis.
@item
Small bug fixes.
@item
Improved interaction with Emacs LaTeX mode.
@end itemize

@noindent @b{Version 4.12}
@itemize @bullet
@item
Support for @file{bibentry} citation style.
@end itemize

@noindent @b{Version 4.11}
@itemize @bullet
@item
Fixed bug which would parse @samp{\Section} just like @samp{\section}.
@end itemize

@noindent @b{Version 4.10}
@itemize @bullet
@item
Renamed @file{reftex-vcr.el} to @file{reftex-dcr.el} because of conflict
with @file{reftex-vars.el} on DOS machines.
@item
New options @code{reftex-parse-file-extension} and
@code{reftex-index-phrase-file-extension}.
@end itemize

@noindent [.....]
@ignore
@noindent @b{Version 4.09}
@itemize @bullet
@item
New option @code{reftex-toc-max-level} to limit the depth of the toc.
New key binding @kbd{t} in the @file{*toc*} buffer to change this
setting.
@item
RefTeX maintains an @file{Index Phrases} file in which phrases can be
collected.  When the document is ready, RefTeX can search all
these phrases and assist indexing all matches.
@item
The variables @code{reftex-index-macros} and
@code{reftex-index-default-macro} have changed their syntax slightly.
The @var{repeat} parameter has move from the latter to the former.
Also calls to @code{reftex-add-index-macros} from AUCTeX style files
need to be adapted.
@item
The variable @code{reftex-section-levels} no longer contains the
default stuff which has been moved to a constant.
@item
Environments like theorems can be placed into the TOC by putting
entries for @samp{"begin@{theorem@}"} in
@code{reftex-section-levels}.
@end itemize

@noindent @b{Version 4.06}
@itemize @bullet
@item
@code{reftex-section-levels} can contain a function to compute the level
of a sectioning command.
@item
Multiple @code{thebibliography} environments recognized.
@end itemize

@noindent @b{Version 4.04}
@itemize @bullet
@item
New option @code{reftex-index-default-tag} implements a default for queries.
@end itemize

@noindent @b{Version 4.02}
@itemize @bullet
@item
macros ending in @samp{refrange} are considered to contain references.
@item
Index entries made with @code{reftex-index-selection-or-word} in TeX
math mode automatically get enclosing @samp{$} to preserve math mode.  See
new option @code{reftex-index-math-format}.  Requires AUCTeX.
@end itemize

@noindent @b{Version 4.01}
@itemize @bullet
@item
New command @code{reftex-index-globally} to index a word in many
places in the document.  Also available from the index buffer with
@kbd{&}.
@item
The first item in a @code{reftex-label-alist} entry may now also be a parser
function to do non-standard parsing.
@item
@code{reftex-auto-view-crossref} no longer interferes with
@code{pop-up-frames} (patch from Stefan Monnier).
@end itemize

@noindent @b{Version 4.00}
@itemize @bullet
@item
RefTeX has been split into several smaller files which are autoloaded on
demand.
@item
Index support, along with many new options.
@item
The selection of keys for @code{\ref} and @code{\cite} now allows you
to select multiple items by marking entries with the @kbd{m} key.
@item
Fancyref support.
@end itemize

@noindent @b{Version 3.43}
@itemize @bullet
@item
Viewing cross-references generalized.  Now works on @code{\label},
@code{\ref}, @code{\cite}, @code{\bibitem}, @code{\index}, variations of
these, and from BibTeX buffers.
@item
New option @code{reftex-view-crossref-extra}.
@item
Support for the additional sectioning commands @code{\addchap} and
@code{\addsec} which are defined in the LaTeX KOMA-Script classes.
@item
Files in @code{reftex-default-bibliography} will be searched along
@code{BIBINPUTS} path.
@item
Reading a parse file now checks consistency.
@end itemize

@noindent @b{Version 3.42}
@itemize @bullet
@item
File search further refined.  New option @code{reftex-file-extensions}.
@item
@file{*toc*} buffer can show the file boundaries of a multifile
document, all labels and associated context.  New keys @kbd{i}, @kbd{l},
and @kbd{c}.  New options @code{reftex-toc-include-labels},
@code{reftex-toc-include-context},
@code{reftex-toc-include-file-boundaries}.
@end itemize

@noindent @b{Version 3.41}
@itemize @bullet
@item
New options @code{reftex-texpath-environment-variables},
@code{reftex-use-external-file-finders},
@code{reftex-external-file-finders},
@code{reftex-search-unrecursed-path-first}.
@item
@emph{kpathsearch} support.  See new options and
@code{reftex-bibpath-environment-variables}.
@end itemize

@noindent @b{Version 3.38}
@itemize @bullet
@item
@code{reftex-view-crossref} no longer moves to find a macro.  Point has
to be on the macro argument.
@end itemize

@noindent @b{Version 3.36}
@itemize @bullet
@item
New value @code{window} for option @code{reftex-auto-view-crossref}.
@end itemize

@noindent @b{Version 3.35}
@itemize @bullet
@item
ISO 8859 Latin-1 chars are converted to ASCII to derive better labels.
This takes back the related changes in 3.34 for safety reasons.
@end itemize

@noindent @b{Version 3.34}
@itemize @bullet
@item
Additional flag in @code{reftex-derive-label-parameters} do make only
lowercase labels (default @code{t}).
@item
All @file{.rel} files have a final newline to avoid queries.
@item
Single byte representations of accented European letters (ISO-8859-1)
are now valid in labels.
@end itemize

@noindent @b{Version 3.33}
@itemize @bullet
@item
Multiple selection buffers are now hidden buffers (they start with a
SPACE).
@item
Fixed bug with file search when TEXINPUTS environment variable is empty.
@end itemize

@noindent @b{Version 3.30}
@itemize @bullet
@item
In @code{reftex-citation}, the regular expression used to scan BibTeX
files can be specified using completion on known citation keys.
@item
New keys @kbd{a} and @kbd{A} in BibTeX selection process to cite @emph{all}
entries.
@item
New command @code{reftex-renumber-simple-labels} to renumber simple
labels like @samp{eq:13} sequentially through a document.
@end itemize

@noindent @b{Version 3.28}
@itemize @bullet
@item
Auto view crossref for XEmacs uses @code{post-command-hook} to restart the
timer, since itimer restart is not reliable.
@item
Option @code{reftex-bibfile-ignore-list} renamed to @code{-regexps}.
@item
Expansion of recursive tex and bib path rewritten.
@item
Fixed problem where @RefTeX{} did not scan unsaved buffers.
@item
Fixed bug with section numbering after *-red sections.
@end itemize

@noindent @b{Version 3.27}
@itemize @bullet
@item
Macros can define @emph{neutral} labels, just like @code{\label}
itself.
@item
New option @code{reftex-allow-detached-macro-args}, default @code{nil}!
@end itemize

@noindent @b{Version 3.26}
@itemize @bullet
@item
[X]Emacs 19 no longer supported.  Use 3.22 for Emacs 19.
@item
New hooks @code{reftex-translate-to-ascii-function},
@code{reftex-string-to-label-function}.
@item
Made sure automatic crossref display will not visit/scan files.
@end itemize

@noindent @b{Version 3.25}
@itemize @bullet
@item
Echoing of citation info caches the info for displayed entries.
New option @code{reftex-cache-cite-echo}.
@item
@kbd{M-x reftex-reset-mode} now also removes the file with parsing
info.
@item
Default of @code{reftex-revisit-to-follow} changed to @code{nil}.
@end itemize

@noindent @b{Version 3.24}
@itemize @bullet
@item
New option @code{reftex-revisit-to-echo}.
@item
Interface with X-Symbol (>=2.6) is now complete and stable.
@item
Adapted to new outline, which uses overlays.
@item
File names in @code{\bibliography} may now have the @code{.bib}
extension.
@item
Fixed Bug with parsing "single file" from master file buffer.
@end itemize

@noindent @b{Version 3.23}
@itemize @bullet
@item
Parse files @file{MASTER.rel} made compatible between Emacs and XEmacs.
@item
@code{kill-emacs-hook} and @code{kill-buffer-hook} now write the parse
file.
@item
The cursor inside a @code{\ref} or @code{\cite} macro can now trigger
automatic display of crossref information in the echo area.  See
variable @code{reftex-auto-view-crossref}.
@item
AUCTeX interface updates:
@itemize @minus
@item
AUCTeX 9.9c and later notifies @RefTeX{} about new sections.
@item
@RefTeX{} notifies AUCTeX about new labels.
@item
@code{TeX-arg-ref} no longer used (introduction was unnecessary).
@item
@code{reftex-arg-label} and @code{reftex-arg-cite} fixed up.
@item
Settings added to @RefTeX{} via style files remain local.
@end itemize
@item
Fixed bug with @code{reftex-citation} in non-latex buffers.
@item
Fixed bug with syntax table and context refontification.
@item
Safety-net for name change of @code{font-lock-reference-face}.
@end itemize

@noindent @b{Version 3.22}
@itemize @bullet
@item
Fixed bug with empty context strings.
@item
@code{reftex-mouse-view-crossref} is now bound by default at
@kbd{S-mouse-2}.
@end itemize

@noindent @b{Version 3.21}
@itemize @bullet
@item
New options for all faces used by @RefTeX{}. They're in the
customization group @code{reftex-fontification-configurations}.
@end itemize

@noindent @b{Version 3.19}
@itemize @bullet
@item
Fixed bug with AUCTeX @code{TeX-master}.
@end itemize

@noindent @b{Version 3.18}
@itemize @bullet
@item
The selection now uses a recursive edit, much like minibuffer input.
This removes all restrictions during selection.  E.g., you can now
switch buffers at will, use the mouse etc.
@item
New option @code{reftex-highlight-selection}.
@item
@kbd{mouse-2} can be used to select in selection and @file{*toc*}
buffers.
@item
Fixed some problems regarding the interaction with VIPER mode.
@item
Follow-mode is now only used after point motion.
@item
@RefTeX{} now finally does not fontify temporary files anymore.
@end itemize

@noindent @b{Version 3.17}
@itemize @bullet
@item
Additional bindings in selection and @file{*toc*} buffers.  @kbd{g}
redefined.
@item
New command @code{reftex-save-all-document-buffers}.
@item
Magic word matching made more intelligent.
@item
Selection process can switch to completion (with @key{TAB}).
@item
@code{\appendix} is now recognized and influences section numbering.
@item
File commentary shortened considerably (use Info documentation).
@item
New option @code{reftex-no-include-regexps} to skip some include files.
@item
New option @code{reftex-revisit-to-follow}.
@end itemize

@noindent @b{Version 3.16}
@itemize @bullet
@item
New hooks @code{reftex-format-label-function},
@code{reftex-format-ref-function}, @code{reftex-format-cite-function}.
@item
TeXInfo documentation completed.
@item
Some restrictions in Label inserting and referencing removed.
@item
New variable @code{reftex-default-bibliography}.
@end itemize

@noindent @b{Version 3.14}
@itemize @bullet
@item
Selection buffers can be kept between selections: this is faster.
See new variable @code{reftex-use-multiple-selection-buffers}.
@item
Prefix interpretation of reftex-view-crossref changed.
@item
Support for the @code{varioref} package (@kbd{v} key in selection
buffer).
@end itemize

@noindent @b{Version 3.12}
@itemize @bullet
@item
There are 3 new keymaps for customization: @code{reftex-toc-map},
@code{reftex-select-label-map}, @code{reftex-select-bib-map}.
@item
Refontification uses more standard font-lock stuff.
@item
When no BibTeX database files are specified, citations can also use
@code{\bibitem} entries from a @code{thebibliography} environment.
@end itemize

@noindent @b{Version 3.11}
@itemize @bullet
@item
Fixed bug which led to naked label in (e.g.)@: footnotes.
@item
Added scroll-other-window functions to RefTeX-Select.
@end itemize

@noindent @b{Version 3.10}
@itemize @bullet
@item
Fixed a bug which made reftex 3.07 fail on [X]Emacs version 19.
@item
Removed unimportant code which caused OS/2 Emacs to crash.
@item
All customization variables now accessible from menu.
@end itemize

@noindent @b{Version 3.07}
@itemize @bullet
@item
@code{Ref} menu improved.
@end itemize

@noindent @b{Version 3.05}
@itemize @bullet
@item
Compatibility code now first checks for XEmacs feature.
@end itemize

@noindent @b{Version 3.04}
@itemize @bullet
@item
Fixed BUG in the @emph{xr} support.
@end itemize

@noindent @b{Version 3.03}
@itemize @bullet
@item
Support for the LaTeX package @code{xr}, for inter-document
references.
@item
A few (minor) Mule-related changes.
@item
Fixed bug which could cause @emph{huge} @file{.rel} files.
@item
Search for input and @file{.bib} files with recursive path definitions.
@end itemize

@noindent @b{Version 3.00}
@itemize @bullet
@item
@RefTeX{} should work better for very large projects:
@item
The new parser works without creating a master buffer.
@item
Rescanning can be limited to a part of a multifile document.
@item
Information from the parser can be stored in a file.
@item
@RefTeX{} can deal with macros having a naked label as an argument.
@item
Macros may have white space and newlines between arguments.
@item
Multiple identical section headings no longer confuse
@code{reftex-toc}.
@item
@RefTeX{} should work correctly in combination with buffer-altering
packages like outline, folding, x-symbol, iso-cvt, isotex, etc.
@item
All labeled environments discussed in @emph{The LaTeX Companion} by
Goossens, Mittelbach & Samarin, Addison-Wesley 1994) are part of
@RefTeX{}'s defaults.
@end itemize

@noindent @b{Version 2.17}
@itemize @bullet
@item
Label prefix expands % escapes with current file name and other stuff.
@item
Citation format now with % escapes.  This is not backward
compatible!
@item
TEXINPUTS variable recognized when looking for input files.
@item
Context can be the nth argument of a macro.
@item
Searching in the select buffer is now possible (@kbd{C-s} and
@kbd{C-r}).
@item
Display and derive-label can use two different context methods.
@item
AMSmath @code{xalignat} and @code{xxalignat} added.
@end itemize

@noindent @b{Version 2.14}
@itemize @bullet
@item
Variable @code{reftex-plug-into-AUCTeX} simplifies cooperation with
AUCTeX.
@end itemize

@noindent @b{Version 2.11}
@itemize @bullet
@item
Submitted for inclusion to Emacs and XEmacs.
@end itemize

@noindent @b{Version 2.07}
@itemize @bullet
@item
New functions @code{reftex-search-document},
@code{reftex-query-replace-document}.
@end itemize

@noindent @b{Version 2.05}
@itemize @bullet
@item
Support for @file{custom.el}.
@item
New function @code{reftex-grep-document} (thanks to Stephen Eglen).
@end itemize

@noindent @b{Version 2.03}
@itemize @bullet
@item
@code{figure*}, @code{table*}, @code{sidewaysfigure/table} added to
default environments.
@item
@code{reftex-bibfile-ignore-list} introduced (thanks to Rory Molinari).
@item
New functions @code{reftex-arg-label}, @code{reftex-arg-ref},
@code{reftex-arg-cite}.
@item
Emacs/XEmacs compatibility reworked.  XEmacs 19.15 now is
required.
@item
@code{reftex-add-to-label-alist} (to be called from AUCTeX style
files).
@item
Finding context with a hook function.
@item
Sorting BibTeX entries (new variable:
@code{reftex-sort-bibtex-matches}).
@end itemize

@noindent @b{Version 2.00}
@itemize @bullet
@item
Labels can be derived from context (default for sections).
@item
Configuration of label insertion and label referencing revised.
@item
Crossref fields in BibTeX database entries.
@item
@code{reftex-toc} introduced (thanks to Stephen Eglen).
@end itemize

@noindent @b{Version 1.09}
@itemize @bullet
@item
Support for @code{tex-main-file}, an analogue for
@code{TeX-master}.
@item
MS-DOS support.
@end itemize

@noindent @b{Version 1.07}
@itemize @bullet
@item
@RefTeX{} gets its own menu.
@end itemize

@noindent @b{Version 1.05}
@itemize @bullet
@item
XEmacs port.
@end itemize

@noindent @b{Version 1.04}
@itemize @bullet
@item
Macros as wrappers, AMSTeX support, delayed context parsing for
new labels.
@end itemize
@end ignore

@noindent @b{Version 1.00}
@itemize @bullet
@item
released on 7 Jan 1997.
@end itemize

@node GNU Free Documentation License
@appendix GNU Free Documentation License
@include doclicense.texi

@node Index
@unnumbered Index
@printindex cp

@bye

debug log:

solving 013c5639a1 ...
found 013c5639a1 in https://git.savannah.gnu.org/cgit/emacs.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 external index

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

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.