emacs / lisp / font-lock.el

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
;;; font-lock.el --- Electric font lock mode

;; Copyright (C) 1992, 93, 94, 95, 96, 97, 1998 Free Software Foundation, Inc.

;; Author: jwz, then rms, then sm <simon@gnu.org>
;; Maintainer: FSF
;; Keywords: languages, faces

;; This file is part of GNU Emacs.

;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

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

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;;; Commentary:

;; Font Lock mode is a minor mode that causes your comments to be displayed in
;; one face, strings in another, reserved words in another, and so on.
;;
;; Comments will be displayed in `font-lock-comment-face'.
;; Strings will be displayed in `font-lock-string-face'.
;; Regexps are used to display selected patterns in other faces.
;;
;; To make the text you type be fontified, use M-x font-lock-mode RET.
;; When this minor mode is on, the faces of the current line are updated with
;; every insertion or deletion.
;;
;; To turn Font Lock mode on automatically, add this to your ~/.emacs file:
;;
;;  (add-hook 'emacs-lisp-mode-hook 'turn-on-font-lock)
;;
;; Or if you want to turn Font Lock mode on in many modes:
;;
;;  (global-font-lock-mode t)
;;
;; Fontification for a particular mode may be available in a number of levels
;; of decoration.  The higher the level, the more decoration, but the more time
;; it takes to fontify.  See the variable `font-lock-maximum-decoration', and
;; also the variable `font-lock-maximum-size'.  Support modes for Font Lock
;; mode can be used to speed up Font Lock mode.  See `font-lock-support-mode'.

;;; How Font Lock mode fontifies:

;; When Font Lock mode is turned on in a buffer, it (a) fontifies the entire
;; buffer and (b) installs one of its fontification functions on one of the
;; hook variables that are run by Emacs after every buffer change (i.e., an
;; insertion or deletion).  Fontification means the replacement of `face' text
;; properties in a given region; Emacs displays text with these `face' text
;; properties appropriately.
;;
;; Fontification normally involves syntactic (i.e., strings and comments) and
;; regexp (i.e., keywords and everything else) passes.  There are actually
;; three passes; (a) the syntactic keyword pass, (b) the syntactic pass and (c)
;; the keyword pass.  Confused?
;;
;; The syntactic keyword pass places `syntax-table' text properties in the
;; buffer according to the variable `font-lock-syntactic-keywords'.  It is
;; necessary because Emacs' syntax table is not powerful enough to describe all
;; the different syntactic constructs required by the sort of people who decide
;; that a single quote can be syntactic or not depending on the time of day.
;; (What sort of person could decide to overload the meaning of a quote?)
;; Obviously the syntactic keyword pass must occur before the syntactic pass.
;;
;; The syntactic pass places `face' text properties in the buffer according to
;; syntactic context, i.e., according to the buffer's syntax table and buffer
;; text's `syntax-table' text properties.  It involves using a syntax parsing
;; function to determine the context of different parts of a region of text.  A
;; syntax parsing function is necessary because generally strings and/or
;; comments can span lines, and so the context of a given region is not
;; necessarily apparent from the content of that region.  Because the keyword
;; pass only works within a given region, it is not generally appropriate for
;; syntactic fontification.  This is the first fontification pass that makes
;; changes visible to the user; it fontifies strings and comments.
;;
;; The keyword pass places `face' text properties in the buffer according to
;; the variable `font-lock-keywords'.  It involves searching for given regexps
;; (or calling given search functions) within the given region.  This is the
;; second fontification pass that makes changes visible to the user; it
;; fontifies language reserved words, etc.
;;
;; Oh, and the answer is, "Yes, obviously just about everything should be done
;; in a single syntactic pass, but the only syntactic parser available
;; understands only strings and comments."  Perhaps one day someone will write
;; some syntactic parsers for common languages and a son-of-font-lock.el could
;; use them rather then relying so heavily on the keyword (regexp) pass.

;;; How Font Lock mode supports modes or is supported by modes:

;; Modes that support Font Lock mode do so by defining one or more variables
;; whose values specify the fontification.  Font Lock mode knows of these
;; variable names from (a) the buffer local variable `font-lock-defaults', if
;; non-nil, or (b) the global variable `font-lock-defaults-alist', if the major
;; mode has an entry.  (Font Lock mode is set up via (a) where a mode's
;; patterns are distributed with the mode's package library, and (b) where a
;; mode's patterns are distributed with font-lock.el itself.  An example of (a)
;; is Pascal mode, an example of (b) is Lisp mode.  Normally, the mechanism is
;; (a); (b) is used where it is not clear which package library should contain
;; the pattern definitions.)  Font Lock mode chooses which variable to use for
;; fontification based on `font-lock-maximum-decoration'.
;;
;; Font Lock mode fontification behaviour can be modified in a number of ways.
;; See the below comments and the comments distributed throughout this file.

;;; Constructing patterns:

;; See the documentation for the variable `font-lock-keywords'.
;;
;; Efficient regexps for use as MATCHERs for `font-lock-keywords' and
;; `font-lock-syntactic-keywords' can be generated via the function
;; `regexp-opt', and their depth counted via the function `regexp-opt-depth'.

;;; Adding patterns for modes that already support Font Lock:

;; Though Font Lock highlighting patterns already exist for many modes, it's
;; likely there's something that you want fontified that currently isn't, even
;; at the maximum fontification level.  You can add highlighting patterns via
;; `font-lock-add-keywords'.  For example, say in some C
;; header file you #define the token `and' to expand to `&&', etc., to make
;; your C code almost readable.  In your ~/.emacs there could be:
;;
;;  (font-lock-add-keywords 'c-mode '("\\<\\(and\\|or\\|not\\)\\>"))
;;
;; Some modes provide specific ways to modify patterns based on the values of
;; other variables.  For example, additional C types can be specified via the
;; variable `c-font-lock-extra-types'.

;;; Adding patterns for modes that do not support Font Lock:

;; Not all modes support Font Lock mode.  If you (as a user of the mode) add
;; patterns for a new mode, you must define in your ~/.emacs a variable or
;; variables that specify regexp fontification.  Then, you should indicate to
;; Font Lock mode, via the mode hook setting `font-lock-defaults', exactly what
;; support is required.  For example, say Foo mode should have the following
;; regexps fontified case-sensitively, and comments and strings should not be
;; fontified automagically.  In your ~/.emacs there could be:
;;
;;  (defvar foo-font-lock-keywords
;;    '(("\\<\\(one\\|two\\|three\\)\\>" . font-lock-keyword-face)
;;      ("\\<\\(four\\|five\\|six\\)\\>" . font-lock-type-face))
;;    "Default expressions to highlight in Foo mode.")
;;
;;  (add-hook 'foo-mode-hook
;;   (function (lambda ()
;;               (make-local-variable 'font-lock-defaults)
;;               (setq font-lock-defaults '(foo-font-lock-keywords t)))))

;;; Adding Font Lock support for modes:

;; Of course, it would be better that the mode already supports Font Lock mode.
;; The package author would do something similar to above.  The mode must
;; define at the top-level a variable or variables that specify regexp
;; fontification.  Then, the mode command should indicate to Font Lock mode,
;; via `font-lock-defaults', exactly what support is required.  For example,
;; say Bar mode should have the following regexps fontified case-insensitively,
;; and comments and strings should be fontified automagically.  In bar.el there
;; could be:
;;
;;  (defvar bar-font-lock-keywords
;;    '(("\\<\\(uno\\|due\\|tre\\)\\>" . font-lock-keyword-face)
;;      ("\\<\\(quattro\\|cinque\\|sei\\)\\>" . font-lock-type-face))
;;    "Default expressions to highlight in Bar mode.")
;;
;; and within `bar-mode' there could be:
;;
;;  (make-local-variable 'font-lock-defaults)
;;  (setq font-lock-defaults '(bar-font-lock-keywords nil t))

;; What is fontification for?  You might say, "It's to make my code look nice."
;; I think it should be for adding information in the form of cues.  These cues
;; should provide you with enough information to both (a) distinguish between
;; different items, and (b) identify the item meanings, without having to read
;; the items and think about it.  Therefore, fontification allows you to think
;; less about, say, the structure of code, and more about, say, why the code
;; doesn't work.  Or maybe it allows you to think less and drift off to sleep.
;;
;; So, here are my opinions/advice/guidelines:
;; 
;; - Highlight conceptual objects, such as function and variable names, and
;;   different objects types differently, i.e., (a) and (b) above, highlight
;;   function names differently to variable names.
;; - Keep the faces distinct from each other as far as possible.
;;   i.e., (a) above.
;; - Use the same face for the same conceptual object, across all modes.
;;   i.e., (b) above, all modes that have items that can be thought of as, say,
;;   keywords, should be highlighted with the same face, etc.
;; - Make the face attributes fit the concept as far as possible.
;;   i.e., function names might be a bold colour such as blue, comments might
;;   be a bright colour such as red, character strings might be brown, because,
;;   err, strings are brown (that was not the reason, please believe me).
;; - Don't use a non-nil OVERRIDE unless you have a good reason.
;;   Only use OVERRIDE for special things that are easy to define, such as the
;;   way `...' quotes are treated in strings and comments in Emacs Lisp mode.
;;   Don't use it to, say, highlight keywords in commented out code or strings.
;; - Err, that's it.

;;; Code:

;; Define core `font-lock' group.
(defgroup font-lock nil
  "Font Lock mode text highlighting package."
  :link '(custom-manual "(emacs)Font Lock")
  :group 'faces)

(defgroup font-lock-highlighting-faces nil
  "Faces for highlighting text."
  :prefix "font-lock-"
  :group 'font-lock)

(defgroup font-lock-extra-types nil
  "Extra mode-specific type names for highlighting declarations."
  :group 'font-lock)

;; Define support mode groups here to impose `font-lock' group order.
(defgroup fast-lock nil
  "Font Lock support mode to cache fontification."
  :link '(custom-manual "(emacs)Support Modes")
  :load 'fast-lock
  :group 'font-lock)

(defgroup lazy-lock nil
  "Font Lock support mode to fontify lazily."
  :link '(custom-manual "(emacs)Support Modes")
  :load 'lazy-lock
  :group 'font-lock)

;; User variables.

(defcustom font-lock-maximum-size (* 250 1024)
  "*Maximum size of a buffer for buffer fontification.
Only buffers less than this can be fontified when Font Lock mode is turned on.
If nil, means size is irrelevant.
If a list, each element should be a cons pair of the form (MAJOR-MODE . SIZE),
where MAJOR-MODE is a symbol or t (meaning the default).  For example:
 ((c-mode . 256000) (c++-mode . 256000) (rmail-mode . 1048576))
means that the maximum size is 250K for buffers in C or C++ modes, one megabyte
for buffers in Rmail mode, and size is irrelevant otherwise."
  :type '(choice (const :tag "none" nil)
		 (integer :tag "size")
		 (repeat :menu-tag "mode specific" :tag "mode specific"
			 :value ((t . nil))
			 (cons :tag "Instance"
			       (radio :tag "Mode"
				      (const :tag "all" t)
				      (symbol :tag "name"))
			       (radio :tag "Size"
				      (const :tag "none" nil)
				      (integer :tag "size")))))
  :group 'font-lock)

(defcustom font-lock-maximum-decoration t
  "*Maximum decoration level for fontification.
If nil, use the default decoration (typically the minimum available).
If t, use the maximum decoration available.
If a number, use that level of decoration (or if not available the maximum).
If a list, each element should be a cons pair of the form (MAJOR-MODE . LEVEL),
where MAJOR-MODE is a symbol or t (meaning the default).  For example:
 ((c-mode . t) (c++-mode . 2) (t . 1))
means use the maximum decoration available for buffers in C mode, level 2
decoration for buffers in C++ mode, and level 1 decoration otherwise."
  :type '(choice (const :tag "default" nil)
		 (const :tag "maximum" t)
		 (integer :tag "level" 1)
		 (repeat :menu-tag "mode specific" :tag "mode specific"
			 :value ((t . t))
			 (cons :tag "Instance"
			       (radio :tag "Mode"
				      (const :tag "all" t)
				      (symbol :tag "name"))
			       (radio :tag "Decoration"
				      (const :tag "default" nil)
				      (const :tag "maximum" t) 
				      (integer :tag "level" 1)))))
  :group 'font-lock)

(defcustom font-lock-verbose (* 0 1024)
  "*If non-nil, means show status messages for buffer fontification.
If a number, only buffers greater than this size have fontification messages."
  :type '(choice (const :tag "never" nil)
		 (const :tag "always" t)
		 (integer :tag "size"))
  :group 'font-lock)

;; Fontification variables:

(defvar font-lock-keywords nil
  "A list of the keywords to highlight.
Each element should have one of these forms:

 MATCHER
 (MATCHER . MATCH)
 (MATCHER . FACENAME)
 (MATCHER . HIGHLIGHT)
 (MATCHER HIGHLIGHT ...)
 (eval . FORM)

where HIGHLIGHT should be either MATCH-HIGHLIGHT or MATCH-ANCHORED.

FORM is an expression, whose value should be a keyword element, evaluated when
the keyword is (first) used in a buffer.  This feature can be used to provide a
keyword that can only be generated when Font Lock mode is actually turned on.

For highlighting single items, for example each instance of the word \"foo\",
typically only MATCH-HIGHLIGHT is required.
However, if an item or (typically) items are to be highlighted following the
instance of another item (the anchor), for example each instance of the
word \"bar\" following the word \"anchor\" then MATCH-ANCHORED may be required.

MATCH-HIGHLIGHT should be of the form:

 (MATCH FACENAME OVERRIDE LAXMATCH)

where MATCHER can be either the regexp to search for, or the function name to
call to make the search (called with one argument, the limit of the search) and
return non-nil if it succeeds (and set `match-data' appropriately).
MATCHER regexps can be generated via the function `regexp-opt'.  MATCH is the
subexpression of MATCHER to be highlighted.  MATCH can be calculated via the
function `regexp-opt-depth'.  FACENAME is an expression whose value is the face
name to use.  Face default attributes can be modified via \\[customize].

OVERRIDE and LAXMATCH are flags.  If OVERRIDE is t, existing fontification can
be overwritten.  If `keep', only parts not already fontified are highlighted.
If `prepend' or `append', existing fontification is merged with the new, in
which the new or existing fontification, respectively, takes precedence.
If LAXMATCH is non-nil, no error is signaled if there is no MATCH in MATCHER.

For example, an element of the form highlights (if not already highlighted):

 \"\\\\\\=<foo\\\\\\=>\"		discrete occurrences of \"foo\" in the value of the
			variable `font-lock-keyword-face'.
 (\"fu\\\\(bar\\\\)\" . 1)	substring \"bar\" within all occurrences of \"fubar\" in
			the value of `font-lock-keyword-face'.
 (\"fubar\" . fubar-face)	Occurrences of \"fubar\" in the value of `fubar-face'.
 (\"foo\\\\|bar\" 0 foo-bar-face t)
			occurrences of either \"foo\" or \"bar\" in the value
			of `foo-bar-face', even if already highlighted.
 (fubar-match 1 fubar-face)
			the first subexpression within all occurrences of
			whatever the function `fubar-match' finds and matches
			in the value of `fubar-face'.

MATCH-ANCHORED should be of the form:

 (MATCHER PRE-MATCH-FORM POST-MATCH-FORM MATCH-HIGHLIGHT ...)

where MATCHER is a regexp to search for or the function name to call to make
the search, as for MATCH-HIGHLIGHT above, but with one exception; see below.
PRE-MATCH-FORM and POST-MATCH-FORM are evaluated before the first, and after
the last, instance MATCH-ANCHORED's MATCHER is used.  Therefore they can be
used to initialise before, and cleanup after, MATCHER is used.  Typically,
PRE-MATCH-FORM is used to move to some position relative to the original
MATCHER, before starting with MATCH-ANCHORED's MATCHER.  POST-MATCH-FORM might
be used to move, before resuming with MATCH-ANCHORED's parent's MATCHER.

For example, an element of the form highlights (if not already highlighted):

 (\"\\\\\\=<anchor\\\\\\=>\" (0 anchor-face) (\"\\\\\\=<item\\\\\\=>\" nil nil (0 item-face)))

 discrete occurrences of \"anchor\" in the value of `anchor-face', and subsequent
 discrete occurrences of \"item\" (on the same line) in the value of `item-face'.
 (Here PRE-MATCH-FORM and POST-MATCH-FORM are nil.  Therefore \"item\" is
 initially searched for starting from the end of the match of \"anchor\", and
 searching for subsequent instance of \"anchor\" resumes from where searching
 for \"item\" concluded.)

The above-mentioned exception is as follows.  The limit of the MATCHER search
defaults to the end of the line after PRE-MATCH-FORM is evaluated.
However, if PRE-MATCH-FORM returns a position greater than the position after
PRE-MATCH-FORM is evaluated, that position is used as the limit of the search.
It is generally a bad idea to return a position greater than the end of the
line, i.e., cause the MATCHER search to span lines.

These regular expressions should not match text which spans lines.  While
\\[font-lock-fontify-buffer] handles multi-line patterns correctly, updating
when you edit the buffer does not, since it considers text one line at a time.

This variable is set by major modes via the variable `font-lock-defaults'.
Be careful when composing regexps for this list; a poorly written pattern can
dramatically slow things down!")

;; This variable is used by mode packages that support Font Lock mode by
;; defining their own keywords to use for `font-lock-keywords'.  (The mode
;; command should make it buffer-local and set it to provide the set up.)
(defvar font-lock-defaults nil
  "Defaults for Font Lock mode specified by the major mode.
Defaults should be of the form:

 (KEYWORDS KEYWORDS-ONLY CASE-FOLD SYNTAX-ALIST SYNTAX-BEGIN ...)

KEYWORDS may be a symbol (a variable or function whose value is the keywords to
use for fontification) or a list of symbols.  If KEYWORDS-ONLY is non-nil,
syntactic fontification (strings and comments) is not performed.
If CASE-FOLD is non-nil, the case of the keywords is ignored when fontifying.
If SYNTAX-ALIST is non-nil, it should be a list of cons pairs of the form
\(CHAR-OR-STRING . STRING) used to set the local Font Lock syntax table, for
keyword and syntactic fontification (see `modify-syntax-entry').

If SYNTAX-BEGIN is non-nil, it should be a function with no args used to move
backwards outside any enclosing syntactic block, for syntactic fontification.
Typical values are `beginning-of-line' (i.e., the start of the line is known to
be outside a syntactic block), or `beginning-of-defun' for programming modes or
`backward-paragraph' for textual modes (i.e., the mode-dependent function is
known to move outside a syntactic block).  If nil, the beginning of the buffer
is used as a position outside of a syntactic block, in the worst case.

These item elements are used by Font Lock mode to set the variables
`font-lock-keywords', `font-lock-keywords-only',
`font-lock-keywords-case-fold-search', `font-lock-syntax-table' and
`font-lock-beginning-of-syntax-function', respectively.

Further item elements are alists of the form (VARIABLE . VALUE) and are in no
particular order.  Each VARIABLE is made buffer-local before set to VALUE.

Currently, appropriate variables include `font-lock-mark-block-function'.
If this is non-nil, it should be a function with no args used to mark any
enclosing block of text, for fontification via \\[font-lock-fontify-block].
Typical values are `mark-defun' for programming modes or `mark-paragraph' for
textual modes (i.e., the mode-dependent function is known to put point and mark
around a text block relevant to that mode).

Other variables include those for buffer-specialised fontification functions,
`font-lock-fontify-buffer-function', `font-lock-unfontify-buffer-function',
`font-lock-fontify-region-function', `font-lock-unfontify-region-function',
`font-lock-inhibit-thing-lock' and `font-lock-maximum-size'.")

;; This variable is used where font-lock.el itself supplies the keywords.
(defvar font-lock-defaults-alist
  (let (;; We use `beginning-of-defun', rather than nil, for SYNTAX-BEGIN.
	;; Thus the calculation of the cache is usually faster but not
	;; infallible, so we risk mis-fontification.  sm.
	(c-mode-defaults
	 '((c-font-lock-keywords c-font-lock-keywords-1
	    c-font-lock-keywords-2 c-font-lock-keywords-3)
	   nil nil ((?_ . "w")) beginning-of-defun
	   ;; Obsoleted by Emacs 20 parse-partial-sexp's COMMENTSTOP.
	   ;(font-lock-comment-start-regexp . "/[*/]")
	   (font-lock-mark-block-function . mark-defun)))
	(c++-mode-defaults
	 '((c++-font-lock-keywords c++-font-lock-keywords-1 
	    c++-font-lock-keywords-2 c++-font-lock-keywords-3)
	   nil nil ((?_ . "w")) beginning-of-defun
	   ;; Obsoleted by Emacs 20 parse-partial-sexp's COMMENTSTOP.
	   ;(font-lock-comment-start-regexp . "/[*/]")
	   (font-lock-mark-block-function . mark-defun)))
	(objc-mode-defaults
	 '((objc-font-lock-keywords objc-font-lock-keywords-1
	    objc-font-lock-keywords-2 objc-font-lock-keywords-3)
	   nil nil ((?_ . "w") (?$ . "w")) nil
	   ;; Obsoleted by Emacs 20 parse-partial-sexp's COMMENTSTOP.
	   ;(font-lock-comment-start-regexp . "/[*/]")
	   (font-lock-mark-block-function . mark-defun)))
	(java-mode-defaults
	 '((java-font-lock-keywords java-font-lock-keywords-1
	    java-font-lock-keywords-2 java-font-lock-keywords-3)
	   nil nil ((?_ . "w") (?$ . "w") (?. . "w")) nil
	   ;; Obsoleted by Emacs 20 parse-partial-sexp's COMMENTSTOP.
	   ;(font-lock-comment-start-regexp . "/[*/]")
	   (font-lock-mark-block-function . mark-defun)))
	(lisp-mode-defaults
	 '((lisp-font-lock-keywords
	    lisp-font-lock-keywords-1 lisp-font-lock-keywords-2)
	   nil nil (("+-*/.<>=!?$%_&~^:" . "w")) beginning-of-defun
	   ;; Obsoleted by Emacs 20 parse-partial-sexp's COMMENTSTOP.
	   ;(font-lock-comment-start-regexp . ";")
	   (font-lock-mark-block-function . mark-defun)))
	;; For TeX modes we could use `backward-paragraph' for the same reason.
	;; But we don't, because paragraph breaks are arguably likely enough to
	;; occur within a genuine syntactic block to make it too risky.
	;; However, we do specify a MARK-BLOCK function as that cannot result
	;; in a mis-fontification even if it might not fontify enough.  --sm.
	(tex-mode-defaults
	 '((tex-font-lock-keywords
	    tex-font-lock-keywords-1 tex-font-lock-keywords-2)
	   nil nil ((?$ . "\"")) nil
	   ;; Obsoleted by Emacs 20 parse-partial-sexp's COMMENTSTOP.
	   ;(font-lock-comment-start-regexp . "%")
	   (font-lock-mark-block-function . mark-paragraph)))
	)
    (list
     (cons 'c-mode			c-mode-defaults)
     (cons 'c++-mode			c++-mode-defaults)
     (cons 'objc-mode			objc-mode-defaults)
     (cons 'java-mode			java-mode-defaults)
     (cons 'emacs-lisp-mode		lisp-mode-defaults)
     (cons 'latex-mode			tex-mode-defaults)
     (cons 'lisp-mode			lisp-mode-defaults)
     (cons 'lisp-interaction-mode	lisp-mode-defaults)
     (cons 'plain-tex-mode		tex-mode-defaults)
     (cons 'slitex-mode			tex-mode-defaults)
     (cons 'tex-mode			tex-mode-defaults)))
  "Alist of fall-back Font Lock defaults for major modes.
Each item should be a list of the form:

 (MAJOR-MODE . FONT-LOCK-DEFAULTS)

where MAJOR-MODE is a symbol and FONT-LOCK-DEFAULTS is a list of default
settings.  See the variable `font-lock-defaults', which takes precedence.")

(defvar font-lock-keywords-alist nil
  "*Alist of `font-lock-keywords' local to a `major-mode'.
This is normally set via `font-lock-add-keywords'.")

(defvar font-lock-keywords-only nil
  "*Non-nil means Font Lock should not fontify comments or strings.
This is normally set via `font-lock-defaults'.")

(defvar font-lock-keywords-case-fold-search nil
  "*Non-nil means the patterns in `font-lock-keywords' are case-insensitive.
This is normally set via `font-lock-defaults'.")

(defvar font-lock-syntactic-keywords nil
  "A list of the syntactic keywords to highlight.
Can be the list or the name of a function or variable whose value is the list.
See `font-lock-keywords' for a description of the form of this list;
the differences are listed below.  MATCH-HIGHLIGHT should be of the form:

 (MATCH SYNTAX OVERRIDE LAXMATCH)

where SYNTAX can be of the form (SYNTAX-CODE . MATCHING-CHAR), the name of a
syntax table, or an expression whose value is such a form or a syntax table.
OVERRIDE cannot be `prepend' or `append'.

For example, an element of the form highlights syntactically:

 (\"\\\\$\\\\(#\\\\)\" 1 (1 . nil))

 a hash character when following a dollar character, with a SYNTAX-CODE of
 1 (meaning punctuation syntax).  Assuming that the buffer syntax table does
 specify hash characters to have comment start syntax, the element will only
 highlight hash characters that do not follow dollar characters as comments
 syntactically.

 (\"\\\\('\\\\).\\\\('\\\\)\"
  (1 (7 . ?'))
  (2 (7 . ?')))

 both single quotes which surround a single character, with a SYNTAX-CODE of
 7 (meaning string quote syntax) and a MATCHING-CHAR of a single quote (meaning
 a single quote matches a single quote).  Assuming that the buffer syntax table
 does not specify single quotes to have quote syntax, the element will only
 highlight single quotes of the form 'c' as strings syntactically.
 Other forms, such as foo'bar or 'fubar', will not be highlighted as strings.

This is normally set via `font-lock-defaults'.")

(defvar font-lock-syntax-table nil
  "Non-nil means use this syntax table for fontifying.
If this is nil, the major mode's syntax table is used.
This is normally set via `font-lock-defaults'.")

;; If this is nil, we only use the beginning of the buffer if we can't use
;; `font-lock-cache-position' and `font-lock-cache-state'.
(defvar font-lock-beginning-of-syntax-function nil
  "*Non-nil means use this function to move back outside of a syntactic block.
When called with no args it should leave point at the beginning of any
enclosing syntactic block.
If this is nil, the beginning of the buffer is used (in the worst case).
This is normally set via `font-lock-defaults'.")

(defvar font-lock-mark-block-function nil
  "*Non-nil means use this function to mark a block of text.
When called with no args it should leave point at the beginning of any
enclosing textual block and mark at the end.
This is normally set via `font-lock-defaults'.")

;; Obsoleted by Emacs 20 parse-partial-sexp's COMMENTSTOP.
;(defvar font-lock-comment-start-regexp nil
;  "*Regexp to match the start of a comment.
;This need not discriminate between genuine comments and quoted comment
;characters or comment characters within strings.
;If nil, `comment-start-skip' is used instead; see that variable for more info.
;This is normally set via `font-lock-defaults'.")

(defvar font-lock-fontify-buffer-function 'font-lock-default-fontify-buffer
  "Function to use for fontifying the buffer.
This is normally set via `font-lock-defaults'.")

(defvar font-lock-unfontify-buffer-function 'font-lock-default-unfontify-buffer
  "Function to use for unfontifying the buffer.
This is used when turning off Font Lock mode.
This is normally set via `font-lock-defaults'.")

(defvar font-lock-fontify-region-function 'font-lock-default-fontify-region
  "Function to use for fontifying a region.
It should take two args, the beginning and end of the region, and an optional
third arg VERBOSE.  If non-nil, the function should print status messages.
This is normally set via `font-lock-defaults'.")

(defvar font-lock-unfontify-region-function 'font-lock-default-unfontify-region
  "Function to use for unfontifying a region.
It should take two args, the beginning and end of the region.
This is normally set via `font-lock-defaults'.")

(defvar font-lock-inhibit-thing-lock nil
  "List of Font Lock mode related modes that should not be turned on.
Currently, valid mode names as `fast-lock-mode' and `lazy-lock-mode'.
This is normally set via `font-lock-defaults'.")

(defvar font-lock-mode nil)		; Whether we are turned on/modeline.
(defvar font-lock-fontified nil)	; Whether we have fontified the buffer.

;;;###autoload
(defvar font-lock-mode-hook nil
  "Function or functions to run on entry to Font Lock mode.")

;; Font Lock mode.

(eval-when-compile
  ;;
  ;; We don't do this at the top-level as we only use non-autoloaded macros.
  (require 'cl)
  ;;
  ;; Borrowed from lazy-lock.el.
  ;; We use this to preserve or protect things when modifying text properties.
  (defmacro save-buffer-state (varlist &rest body)
    "Bind variables according to VARLIST and eval BODY restoring buffer state."
    (` (let* ((,@ (append varlist
		   '((modified (buffer-modified-p)) (buffer-undo-list t)
		     (inhibit-read-only t) (inhibit-point-motion-hooks t)
		     before-change-functions after-change-functions
		     deactivate-mark buffer-file-name buffer-file-truename))))
	 (,@ body)
	 (when (and (not modified) (buffer-modified-p))
	   (set-buffer-modified-p nil)))))
  (put 'save-buffer-state 'lisp-indent-function 1)
  ;;
  ;; Shut up the byte compiler.
  (defvar global-font-lock-mode)	; Now a defcustom.
  (defvar font-lock-face-attributes)	; Obsolete but respected if set.
  (defvar font-lock-string-face)	; Used in syntactic fontification.
  (defvar font-lock-comment-face))

;;;###autoload
(defun font-lock-mode (&optional arg)
  "Toggle Font Lock mode.
With arg, turn Font Lock mode on if and only if arg is positive.

When Font Lock mode is enabled, text is fontified as you type it:

 - Comments are displayed in `font-lock-comment-face';
 - Strings are displayed in `font-lock-string-face';
 - Certain other expressions are displayed in other faces according to the
   value of the variable `font-lock-keywords'.

You can enable Font Lock mode in any major mode automatically by turning on in
the major mode's hook.  For example, put in your ~/.emacs:

 (add-hook 'c-mode-hook 'turn-on-font-lock)

Alternatively, you can use Global Font Lock mode to automagically turn on Font
Lock mode in buffers whose major mode supports it and whose major mode is one
of `font-lock-global-modes'.  For example, put in your ~/.emacs:

 (global-font-lock-mode t)

There are a number of support modes that may be used to speed up Font Lock mode
in various ways, specified via the variable `font-lock-support-mode'.  Where
major modes support different levels of fontification, you can use the variable
`font-lock-maximum-decoration' to specify which level you generally prefer.
When you turn Font Lock mode on/off the buffer is fontified/defontified, though
fontification occurs only if the buffer is less than `font-lock-maximum-size'.

For example, to specify that Font Lock mode use use Lazy Lock mode as a support
mode and use maximum levels of fontification, put in your ~/.emacs:

 (setq font-lock-support-mode 'lazy-lock-mode)
 (setq font-lock-maximum-decoration t)

To add your own highlighting for some major mode, and modify the highlighting
selected automatically via the variable `font-lock-maximum-decoration', you can
use `font-lock-add-keywords'.

To fontify a buffer, without turning on Font Lock mode and regardless of buffer
size, you can use \\[font-lock-fontify-buffer].

To fontify a block (the function or paragraph containing point, or a number of
lines around point), perhaps because modification on the current line caused
syntactic change on other lines, you can use \\[font-lock-fontify-block].

See the variable `font-lock-defaults-alist' for the Font Lock mode default
settings.  You can set your own default settings for some mode, by setting a
buffer local value for `font-lock-defaults', via its mode hook."
  (interactive "P")
  ;; Don't turn on Font Lock mode if we don't have a display (we're running a
  ;; batch job) or if the buffer is invisible (the name starts with a space).
  (let ((on-p (and (not noninteractive)
		   (not (eq (aref (buffer-name) 0) ?\ ))
		   (if arg
		       (> (prefix-numeric-value arg) 0)
		     (not font-lock-mode)))))
    (set (make-local-variable 'font-lock-mode) on-p)
    ;; Turn on Font Lock mode.
    (when on-p
      (make-local-hook 'after-change-functions)
      (add-hook 'after-change-functions 'font-lock-after-change-function nil t)
      (font-lock-set-defaults)
      (font-lock-turn-on-thing-lock)
      (run-hooks 'font-lock-mode-hook)
      ;; Fontify the buffer if we have to.
      (let ((max-size (font-lock-value-in-major-mode font-lock-maximum-size)))
	(cond (font-lock-fontified
	       nil)
	      ((or (null max-size) (> max-size (buffer-size)))
	       (font-lock-fontify-buffer))
	      (font-lock-verbose
	       (message "Fontifying %s...buffer too big" (buffer-name))))))
    ;; Turn off Font Lock mode.
    (unless on-p
      (remove-hook 'after-change-functions 'font-lock-after-change-function t)
      (font-lock-unfontify-buffer)
      (font-lock-turn-off-thing-lock)
      (font-lock-unset-defaults))
    (force-mode-line-update)))

;;;###autoload
(defun turn-on-font-lock ()
  "Turn on Font Lock mode conditionally.
Turn on only if the terminal can display it."
  (when (and (not font-lock-mode) window-system)
    (font-lock-mode)))

;;;###autoload
(defun font-lock-add-keywords (major-mode keywords &optional append)
  "Add highlighting KEYWORDS for MAJOR-MODE.
MAJOR-MODE should be a symbol, the major mode command name, such as `c-mode'
or nil.  If nil, highlighting keywords are added for the current buffer.
KEYWORDS should be a list; see the variable `font-lock-keywords'.
By default they are added at the beginning of the current highlighting list.
If optional argument APPEND is `set', they are used to replace the current
highlighting list.  If APPEND is any other non-nil value, they are added at the
end of the current highlighting list.

For example:

 (font-lock-add-keywords 'c-mode
  '((\"\\\\\\=<\\\\(FIXME\\\\):\" 1 font-lock-warning-face prepend)
    (\"\\\\\\=<\\\\(and\\\\|or\\\\|not\\\\)\\\\\\=>\" . font-lock-keyword-face)))

adds two fontification patterns for C mode, to fontify `FIXME:' words, even in
comments, and to fontify `and', `or' and `not' words as keywords.

Note that some modes have specialised support for additional patterns, e.g.,
see the variables `c-font-lock-extra-types', `c++-font-lock-extra-types',
`objc-font-lock-extra-types' and `java-font-lock-extra-types'."
  (cond (major-mode
	 ;; If MAJOR-MODE is non-nil, add the KEYWORDS and APPEND spec to
	 ;; `font-lock-keywords-alist' so `font-lock-set-defaults' uses them.
	 (let ((spec (cons keywords append)) cell)
	   (if (setq cell (assq major-mode font-lock-keywords-alist))
	       (setcdr cell (append (cdr cell) (list spec)))
	     (push (list major-mode spec) font-lock-keywords-alist))))
	(font-lock-mode
	 ;; Otherwise if Font Lock mode is on, set or add the keywords now.
	 (if (eq append 'set)
	     (setq font-lock-keywords keywords)
	   (let ((old (if (eq (car-safe font-lock-keywords) t)
			  (cdr font-lock-keywords)
			font-lock-keywords)))
	     (setq font-lock-keywords (if append
					  (append old keywords)
					(append keywords old))))))))

;;; Global Font Lock mode.

;; A few people have hassled in the past for a way to make it easier to turn on
;; Font Lock mode, without the user needing to know for which modes s/he has to
;; turn it on, perhaps the same way hilit19.el/hl319.el does.  I've always
;; balked at that way, as I see it as just re-moulding the same problem in
;; another form.  That is; some person would still have to keep track of which
;; modes (which may not even be distributed with Emacs) support Font Lock mode.
;; The list would always be out of date.  And that person might have to be me.

;; Implementation.
;;
;; In a previous discussion the following hack came to mind.  It is a gross
;; hack, but it generally works.  We use the convention that major modes start
;; by calling the function `kill-all-local-variables', which in turn runs
;; functions on the hook variable `change-major-mode-hook'.  We attach our
;; function `font-lock-change-major-mode' to that hook.  Of course, when this
;; hook is run, the major mode is in the process of being changed and we do not
;; know what the final major mode will be.  So, `font-lock-change-major-mode'
;; only (a) notes the name of the current buffer, and (b) adds our function
;; `turn-on-font-lock-if-enabled' to the hook variables `find-file-hooks' and
;; `post-command-hook' (for buffers that are not visiting files).  By the time
;; the functions on the first of these hooks to be run are run, the new major
;; mode is assumed to be in place.  This way we get a Font Lock function run
;; when a major mode is turned on, without knowing major modes or their hooks.
;;
;; Naturally this requires that (a) major modes run `kill-all-local-variables',
;; as they are supposed to do, and (b) the major mode is in place after the
;; file is visited or the command that ran `kill-all-local-variables' has
;; finished, whichever the sooner.  Arguably, any major mode that does not
;; follow the convension (a) is broken, and I can't think of any reason why (b)
;; would not be met (except `gnudoit' on non-files).  However, it is not clean.
;;
;; Probably the cleanest solution is to have each major mode function run some
;; hook, e.g., `major-mode-hook', but maybe implementing that change is
;; impractical.  I am personally against making `setq' a macro or be advised,
;; or have a special function such as `set-major-mode', but maybe someone can
;; come up with another solution?

;; User interface.
;;
;; Although Global Font Lock mode is a pseudo-mode, I think that the user
;; interface should conform to the usual Emacs convention for modes, i.e., a
;; command to toggle the feature (`global-font-lock-mode') with a variable for
;; finer control of the mode's behaviour (`font-lock-global-modes').
;;
;; The feature should not be enabled by loading font-lock.el, since other
;; mechanisms for turning on Font Lock mode, such as M-x font-lock-mode RET or
;; (add-hook 'c-mode-hook 'turn-on-font-lock), would cause Font Lock mode to be
;; turned on everywhere.  That would not be intuitive or informative because
;; loading a file tells you nothing about the feature or how to control it.  It
;; would also be contrary to the Principle of Least Surprise.  sm.

(defvar font-lock-buffers nil)		; For remembering buffers.

;;;###autoload
(defun global-font-lock-mode (&optional arg message)
  "Toggle Global Font Lock mode.
With prefix ARG, turn Global Font Lock mode on if and only if ARG is positive.
Displays a message saying whether the mode is on or off if MESSAGE is non-nil.
Returns the new status of Global Font Lock mode (non-nil means on).

When Global Font Lock mode is enabled, Font Lock mode is automagically
turned on in a buffer if its major mode is one of `font-lock-global-modes'."
  (interactive "P\np")
  (let ((on-p (if arg
		  (> (prefix-numeric-value arg) 0)
		(not global-font-lock-mode))))
    (cond (on-p
	   (add-hook 'find-file-hooks 'turn-on-font-lock-if-enabled)
	   (add-hook 'post-command-hook 'turn-on-font-lock-if-enabled)
	   (setq font-lock-buffers (buffer-list)))
	  (t
	   (remove-hook 'find-file-hooks 'turn-on-font-lock-if-enabled)
	   (mapcar (function (lambda (buffer)
			       (with-current-buffer buffer
				 (when font-lock-mode
				   (font-lock-mode)))))
		   (buffer-list))))
    (when message
      (message "Global Font Lock mode %s." (if on-p "enabled" "disabled")))
    (setq global-font-lock-mode on-p)))

;; Naughty hack.  This variable was originally a `defvar' to keep track of
;; whether Global Font Lock mode was turned on or not.  As a `defcustom' with
;; special `:set' and `:require' forms, we can provide custom mode control.
(defcustom global-font-lock-mode nil
  "Toggle Global Font Lock mode.
When Global Font Lock mode is enabled, Font Lock mode is automagically
turned on in a buffer if its major mode is one of `font-lock-global-modes'.
You must modify via \\[customize] for this variable to have an effect."
  :set (lambda (symbol value)
	 (global-font-lock-mode (or value 0)))
  :type 'boolean
  :group 'font-lock
  :require 'font-lock)

(defcustom font-lock-global-modes t
  "*Modes for which Font Lock mode is automagically turned on.
Global Font Lock mode is controlled by the `global-font-lock-mode' command.
If nil, means no modes have Font Lock mode automatically turned on.
If t, all modes that support Font Lock mode have it automatically turned on.
If a list, it should be a list of `major-mode' symbol names for which Font Lock
mode should be automatically turned on.  The sense of the list is negated if it
begins with `not'.  For example:
 (c-mode c++-mode)
means that Font Lock mode is turned on for buffers in C and C++ modes only."
  :type '(choice (const :tag "none" nil)
		 (const :tag "all" t)
		 (set :menu-tag "mode specific" :tag "modes"
		      :value (not)
		      (const :tag "Except" not)
		      (repeat :inline t (symbol :tag "mode"))))
  :group 'font-lock)

(defun font-lock-change-major-mode ()
  ;; Turn off Font Lock mode if it's on.
  (when font-lock-mode
    (font-lock-mode))
  ;; Gross hack warning: Delicate readers should avert eyes now.
  ;; Something is running `kill-all-local-variables', which generally means the
  ;; major mode is being changed.  Run `turn-on-font-lock-if-enabled' after the
  ;; file is visited or the current command has finished.
  (when global-font-lock-mode
    (add-hook 'post-command-hook 'turn-on-font-lock-if-enabled)
    (add-to-list 'font-lock-buffers (current-buffer))))

(defun turn-on-font-lock-if-enabled ()
  ;; Gross hack warning: Delicate readers should avert eyes now.
  ;; Turn on Font Lock mode if it's supported by the major mode and enabled by
  ;; the user.
  (remove-hook 'post-command-hook 'turn-on-font-lock-if-enabled)
  (while font-lock-buffers
    (when (buffer-live-p (car font-lock-buffers))
      (save-excursion
	(set-buffer (car font-lock-buffers))
	(when (and (or font-lock-defaults
		       (assq major-mode font-lock-defaults-alist))
		   (or (eq font-lock-global-modes t)
		       (if (eq (car-safe font-lock-global-modes) 'not)
			   (not (memq major-mode (cdr font-lock-global-modes)))
			 (memq major-mode font-lock-global-modes))))
	  (let (inhibit-quit)
	    (turn-on-font-lock)))))
    (setq font-lock-buffers (cdr font-lock-buffers))))

(add-hook 'change-major-mode-hook 'font-lock-change-major-mode)

;;; End of Global Font Lock mode.

;;; Font Lock Support mode.

;; This is the code used to interface font-lock.el with any of its add-on
;; packages, and provide the user interface.  Packages that have their own
;; local buffer fontification functions (see below) may have to call
;; `font-lock-after-fontify-buffer' and/or `font-lock-after-unfontify-buffer'
;; themselves.

(defcustom font-lock-support-mode nil
  "*Support mode for Font Lock mode.
Support modes speed up Font Lock mode by being choosy about when fontification
occurs.  Known support modes are Fast Lock mode (symbol `fast-lock-mode') and
Lazy Lock mode (symbol `lazy-lock-mode').  See those modes for more info.
If nil, means support for Font Lock mode is never performed.
If a symbol, use that support mode.
If a list, each element should be of the form (MAJOR-MODE . SUPPORT-MODE),
where MAJOR-MODE is a symbol or t (meaning the default).  For example:
 ((c-mode . fast-lock-mode) (c++-mode . fast-lock-mode) (t . lazy-lock-mode))
means that Fast Lock mode is used to support Font Lock mode for buffers in C or
C++ modes, and Lazy Lock mode is used to support Font Lock mode otherwise.

The value of this variable is used when Font Lock mode is turned on."
  :type '(choice (const :tag "none" nil)
		 (const :tag "fast lock" fast-lock-mode)
		 (const :tag "lazy lock" lazy-lock-mode)
		 (repeat :menu-tag "mode specific" :tag "mode specific"
			 :value ((t . lazy-lock-mode))
			 (cons :tag "Instance"
			       (radio :tag "Mode"
				      (const :tag "all" t)
				      (symbol :tag "name"))
			       (radio :tag "Decoration"
				      (const :tag "fast lock" fast-lock-mode)
				      (const :tag "lazy lock" lazy-lock-mode)))
			 ))
  :group 'font-lock)

(defvar fast-lock-mode nil)
(defvar lazy-lock-mode nil)

(defun font-lock-turn-on-thing-lock ()
  (let ((thing-mode (font-lock-value-in-major-mode font-lock-support-mode)))
    (cond ((eq thing-mode 'fast-lock-mode)
	   (fast-lock-mode t))
	  ((eq thing-mode 'lazy-lock-mode)
	   (lazy-lock-mode t)))))

(defun font-lock-turn-off-thing-lock ()
  (cond (fast-lock-mode
	 (fast-lock-mode nil))
	(lazy-lock-mode
	 (lazy-lock-mode nil))))

(defun font-lock-after-fontify-buffer ()
  (cond (fast-lock-mode
	 (fast-lock-after-fontify-buffer))
	(lazy-lock-mode
	 (lazy-lock-after-fontify-buffer))))

(defun font-lock-after-unfontify-buffer ()
  (cond (fast-lock-mode
	 (fast-lock-after-unfontify-buffer))
	(lazy-lock-mode
	 (lazy-lock-after-unfontify-buffer))))

;;; End of Font Lock Support mode.

;;; Fontification functions.

;; Rather than the function, e.g., `font-lock-fontify-region' containing the
;; code to fontify a region, the function runs the function whose name is the
;; value of the variable, e.g., `font-lock-fontify-region-function'.  Normally,
;; the value of this variable is, e.g., `font-lock-default-fontify-region'
;; which does contain the code to fontify a region.  However, the value of the
;; variable could be anything and thus, e.g., `font-lock-fontify-region' could
;; do anything.  The indirection of the fontification functions gives major
;; modes the capability of modifying the way font-lock.el fontifies.  Major
;; modes can modify the values of, e.g., `font-lock-fontify-region-function',
;; via the variable `font-lock-defaults'.
;;
;; For example, Rmail mode sets the variable `font-lock-defaults' so that
;; font-lock.el uses its own function for buffer fontification.  This function
;; makes fontification be on a message-by-message basis and so visiting an
;; RMAIL file is much faster.  A clever implementation of the function might
;; fontify the headers differently than the message body.  (It should, and
;; correspondingly for Mail mode, but I can't be bothered to do the work.  Can
;; you?)  This hints at a more interesting use...
;;
;; Languages that contain text normally contained in different major modes
;; could define their own fontification functions that treat text differently
;; depending on its context.  For example, Perl mode could arrange that here
;; docs are fontified differently than Perl code.  Or Yacc mode could fontify
;; rules one way and C code another.  Neat!
;;
;; A further reason to use the fontification indirection feature is when the
;; default syntactual fontification, or the default fontification in general,
;; is not flexible enough for a particular major mode.  For example, perhaps
;; comments are just too hairy for `font-lock-fontify-syntactically-region' to
;; cope with.  You need to write your own version of that function, e.g.,
;; `hairy-fontify-syntactically-region', and make your own version of
;; `hairy-fontify-region' call that function before calling
;; `font-lock-fontify-keywords-region' for the normal regexp fontification
;; pass.  And Hairy mode would set `font-lock-defaults' so that font-lock.el
;; would call your region fontification function instead of its own.  For
;; example, TeX modes could fontify {\foo ...} and \bar{...}  etc. multi-line
;; directives correctly and cleanly.  (It is the same problem as fontifying
;; multi-line strings and comments; regexps are not appropriate for the job.)

;;;###autoload
(defun font-lock-fontify-buffer ()
  "Fontify the current buffer the way `font-lock-mode' would."
  (interactive)
  (let ((font-lock-verbose (or font-lock-verbose (interactive-p))))
    (funcall font-lock-fontify-buffer-function)))

(defun font-lock-unfontify-buffer ()
  (funcall font-lock-unfontify-buffer-function))

(defun font-lock-fontify-region (beg end &optional loudly)
  (funcall font-lock-fontify-region-function beg end loudly))

(defun font-lock-unfontify-region (beg end)
  (funcall font-lock-unfontify-region-function beg end))

(defun font-lock-default-fontify-buffer ()
  (let ((verbose (if (numberp font-lock-verbose)
		     (> (buffer-size) font-lock-verbose)
		   font-lock-verbose)))
    (when verbose
      (message "Fontifying %s..." (buffer-name)))
    ;; Make sure we have the right `font-lock-keywords' etc.
    (unless font-lock-mode
      (font-lock-set-defaults))
    ;; Make sure we fontify etc. in the whole buffer.
    (save-restriction
      (widen)
      (condition-case nil
	  (save-excursion
	    (save-match-data
	      (font-lock-fontify-region (point-min) (point-max) verbose)
	      (font-lock-after-fontify-buffer)
	      (setq font-lock-fontified t)))
	;; We don't restore the old fontification, so it's best to unfontify.
	(quit (font-lock-unfontify-buffer))))
    ;; Make sure we undo `font-lock-keywords' etc.
    (unless font-lock-mode
      (font-lock-unset-defaults))
    (if verbose (message "Fontifying %s...%s" (buffer-name)
			 (if font-lock-fontified "done" "quit")))))

(defun font-lock-default-unfontify-buffer ()
  ;; Make sure we unfontify etc. in the whole buffer.
  (save-restriction
    (widen)
    (font-lock-unfontify-region (point-min) (point-max))
    (font-lock-after-unfontify-buffer)
    (setq font-lock-fontified nil)))

(defun font-lock-default-fontify-region (beg end loudly)
  (save-buffer-state
      ((parse-sexp-lookup-properties font-lock-syntactic-keywords)
       (old-syntax-table (syntax-table)))
    (unwind-protect
	(save-restriction
	  (widen)
	  ;; Use the fontification syntax table, if any.
	  (when font-lock-syntax-table
	    (set-syntax-table font-lock-syntax-table))
	  ;; Now do the fontification.
	  (font-lock-unfontify-region beg end)
	  (when font-lock-syntactic-keywords
	    (font-lock-fontify-syntactic-keywords-region beg end))
	  (unless font-lock-keywords-only
	    (font-lock-fontify-syntactically-region beg end loudly))
	  (font-lock-fontify-keywords-region beg end loudly))
      ;; Clean up.
      (set-syntax-table old-syntax-table))))

;; The following must be rethought, since keywords can override fontification.
;      ;; Now scan for keywords, but not if we are inside a comment now.
;      (or (and (not font-lock-keywords-only)
;	       (let ((state (parse-partial-sexp beg end nil nil 
;						font-lock-cache-state)))
;		 (or (nth 4 state) (nth 7 state))))
;	  (font-lock-fontify-keywords-region beg end))

(defun font-lock-default-unfontify-region (beg end)
  (save-buffer-state nil
    (remove-text-properties beg end '(face nil syntax-table nil))))

;; Called when any modification is made to buffer text.
(defun font-lock-after-change-function (beg end old-len)
  (let ((inhibit-point-motion-hooks t))
    (save-excursion
      (save-match-data
	;; Rescan between start of lines enclosing the region.
	(font-lock-fontify-region
	 (progn (goto-char beg) (beginning-of-line) (point))
	 (progn (goto-char end) (forward-line 1) (point)))))))

(defun font-lock-fontify-block (&optional arg)
  "Fontify some lines the way `font-lock-fontify-buffer' would.
The lines could be a function or paragraph, or a specified number of lines.
If ARG is given, fontify that many lines before and after point, or 16 lines if
no ARG is given and `font-lock-mark-block-function' is nil.
If `font-lock-mark-block-function' non-nil and no ARG is given, it is used to
delimit the region to fontify."
  (interactive "P")
  (let ((inhibit-point-motion-hooks t) font-lock-beginning-of-syntax-function
	deactivate-mark)
    ;; Make sure we have the right `font-lock-keywords' etc.
    (if (not font-lock-mode) (font-lock-set-defaults))
    (save-excursion
      (save-match-data
	(condition-case error-data
	    (if (or arg (not font-lock-mark-block-function))
		(let ((lines (if arg (prefix-numeric-value arg) 16)))
		  (font-lock-fontify-region
		   (save-excursion (forward-line (- lines)) (point))
		   (save-excursion (forward-line lines) (point))))
	      (funcall font-lock-mark-block-function)
	      (font-lock-fontify-region (point) (mark)))
	  ((error quit) (message "Fontifying block...%s" error-data)))))))

(define-key facemenu-keymap "\M-g" 'font-lock-fontify-block)

;;; End of Fontification functions.

;;; Additional text property functions.

;; The following text property functions should be builtins.  This means they
;; should be written in C and put with all the other text property functions.
;; In the meantime, those that are used by font-lock.el are defined in Lisp
;; below and given a `font-lock-' prefix.  Those that are not used are defined
;; in Lisp below and commented out.  sm.

(defun font-lock-prepend-text-property (start end prop value &optional object)
  "Prepend to one property of the text from START to END.
Arguments PROP and VALUE specify the property and value to prepend to the value
already in place.  The resulting property values are always lists.
Optional argument OBJECT is the string or buffer containing the text."
  (let ((val (if (listp value) value (list value))) next prev)
    (while (/= start end)
      (setq next (next-single-property-change start prop object end)
	    prev (get-text-property start prop object))
      (put-text-property start next prop
			 (append val (if (listp prev) prev (list prev)))
			 object)
      (setq start next))))

(defun font-lock-append-text-property (start end prop value &optional object)
  "Append to one property of the text from START to END.
Arguments PROP and VALUE specify the property and value to append to the value
already in place.  The resulting property values are always lists.
Optional argument OBJECT is the string or buffer containing the text."
  (let ((val (if (listp value) value (list value))) next prev)
    (while (/= start end)
      (setq next (next-single-property-change start prop object end)
	    prev (get-text-property start prop object))
      (put-text-property start next prop
			 (append (if (listp prev) prev (list prev)) val)
			 object)
      (setq start next))))

(defun font-lock-fillin-text-property (start end prop value &optional object)
  "Fill in one property of the text from START to END.
Arguments PROP and VALUE specify the property and value to put where none are
already in place.  Therefore existing property values are not overwritten.
Optional argument OBJECT is the string or buffer containing the text."
  (let ((start (text-property-any start end prop nil object)) next)
    (while start
      (setq next (next-single-property-change start prop object end))
      (put-text-property start next prop value object)
      (setq start (text-property-any next end prop nil object)))))

;; For completeness: this is to `remove-text-properties' as `put-text-property'
;; is to `add-text-properties', etc.
;(defun remove-text-property (start end property &optional object)
;  "Remove a property from text from START to END.
;Argument PROPERTY is the property to remove.
;Optional argument OBJECT is the string or buffer containing the text.
;Return t if the property was actually removed, nil otherwise."
;  (remove-text-properties start end (list property) object))

;; For consistency: maybe this should be called `remove-single-property' like
;; `next-single-property-change' (not `next-single-text-property-change'), etc.
;(defun remove-single-text-property (start end prop value &optional object)
;  "Remove a specific property value from text from START to END.
;Arguments PROP and VALUE specify the property and value to remove.  The
;resulting property values are not equal to VALUE nor lists containing VALUE.
;Optional argument OBJECT is the string or buffer containing the text."
;  (let ((start (text-property-not-all start end prop nil object)) next prev)
;    (while start
;      (setq next (next-single-property-change start prop object end)
;	    prev (get-text-property start prop object))
;      (cond ((and (symbolp prev) (eq value prev))
;	     (remove-text-property start next prop object))
;	    ((and (listp prev) (memq value prev))
;	     (let ((new (delq value prev)))
;	       (cond ((null new)
;		      (remove-text-property start next prop object))
;		     ((= (length new) 1)
;		      (put-text-property start next prop (car new) object))
;		     (t
;		      (put-text-property start next prop new object))))))
;      (setq start (text-property-not-all next end prop nil object)))))

;;; End of Additional text property functions.

;;; Syntactic regexp fontification functions.

;; These syntactic keyword pass functions are identical to those keyword pass
;; functions below, with the following exceptions; (a) they operate on
;; `font-lock-syntactic-keywords' of course, (b) they are all `defun' as speed
;; is less of an issue, (c) eval of property value does not occur JIT as speed
;; is less of an issue, (d) OVERRIDE cannot be `prepend' or `append' as it
;; makes no sense for `syntax-table' property values, (e) they do not do it
;; LOUDLY as it is not likely to be intensive.

(defun font-lock-apply-syntactic-highlight (highlight)
  "Apply HIGHLIGHT following a match.
HIGHLIGHT should be of the form MATCH-HIGHLIGHT,
see `font-lock-syntactic-keywords'."
  (let* ((match (nth 0 highlight))
	 (start (match-beginning match)) (end (match-end match))
	 (value (nth 1 highlight))
	 (override (nth 2 highlight)))
    (unless (numberp (car value))
      (setq value (eval value)))
    (cond ((not start)
	   ;; No match but we might not signal an error.
	   (or (nth 3 highlight)
	       (error "No match %d in highlight %S" match highlight)))
	  ((not override)
	   ;; Cannot override existing fontification.
	   (or (text-property-not-all start end 'syntax-table nil)
	       (put-text-property start end 'syntax-table value)))
	  ((eq override t)
	   ;; Override existing fontification.
	   (put-text-property start end 'syntax-table value))
	  ((eq override 'keep)
	   ;; Keep existing fontification.
	   (font-lock-fillin-text-property start end 'syntax-table value)))))

(defun font-lock-fontify-syntactic-anchored-keywords (keywords limit)
  "Fontify according to KEYWORDS until LIMIT.
KEYWORDS should be of the form MATCH-ANCHORED, see `font-lock-keywords',
LIMIT can be modified by the value of its PRE-MATCH-FORM."
  (let ((matcher (nth 0 keywords)) (lowdarks (nthcdr 3 keywords)) highlights
	;; Evaluate PRE-MATCH-FORM.
	(pre-match-value (eval (nth 1 keywords))))
    ;; Set LIMIT to value of PRE-MATCH-FORM or the end of line.
    (if (and (numberp pre-match-value) (> pre-match-value (point)))
	(setq limit pre-match-value)
      (save-excursion (end-of-line) (setq limit (point))))
    (save-match-data
      ;; Find an occurrence of `matcher' before `limit'.
      (while (if (stringp matcher)
		 (re-search-forward matcher limit t)
	       (funcall matcher limit))
	;; Apply each highlight to this instance of `matcher'.
	(setq highlights lowdarks)
	(while highlights
	  (font-lock-apply-syntactic-highlight (car highlights))
	  (setq highlights (cdr highlights)))))
    ;; Evaluate POST-MATCH-FORM.
    (eval (nth 2 keywords))))

(defun font-lock-fontify-syntactic-keywords-region (start end)
  "Fontify according to `font-lock-syntactic-keywords' between START and END.
START should be at the beginning of a line."
  ;; If `font-lock-syntactic-keywords' is a symbol, get the real keywords.
  (when (symbolp font-lock-syntactic-keywords)
    (setq font-lock-syntactic-keywords (font-lock-eval-keywords
					font-lock-syntactic-keywords)))
  ;; If `font-lock-syntactic-keywords' is not compiled, compile it.
  (unless (eq (car font-lock-syntactic-keywords) t)
    (setq font-lock-syntactic-keywords (font-lock-compile-keywords
					font-lock-syntactic-keywords)))
  ;; Get down to business.
  (let ((case-fold-search font-lock-keywords-case-fold-search)
	(keywords (cdr font-lock-syntactic-keywords))
	keyword matcher highlights)
    (while keywords
      ;; Find an occurrence of `matcher' from `start' to `end'.
      (setq keyword (car keywords) matcher (car keyword))
      (goto-char start)
      (while (if (stringp matcher)
		 (re-search-forward matcher end t)
	       (funcall matcher end))
	;; Apply each highlight to this instance of `matcher', which may be
	;; specific highlights or more keywords anchored to `matcher'.
	(setq highlights (cdr keyword))
	(while highlights
	  (if (numberp (car (car highlights)))
	      (font-lock-apply-syntactic-highlight (car highlights))
	    (font-lock-fontify-syntactic-anchored-keywords (car highlights)
							   end))
	  (setq highlights (cdr highlights))))
      (setq keywords (cdr keywords)))))

;;; End of Syntactic regexp fontification functions.

;;; Syntactic fontification functions.

;; These record the parse state at a particular position, always the start of a
;; line.  Used to make `font-lock-fontify-syntactically-region' faster.
;; Previously, `font-lock-cache-position' was just a buffer position.  However,
;; under certain situations, this occasionally resulted in mis-fontification.
;; I think the "situations" were deletion with Lazy Lock mode's deferral.  sm.
(defvar font-lock-cache-state nil)
(defvar font-lock-cache-position nil)

(defun font-lock-fontify-syntactically-region (start end &optional loudly)
  "Put proper face on each string and comment between START and END.
START should be at the beginning of a line."
  (let ((cache (marker-position font-lock-cache-position))
	state string beg)
    (if loudly (message "Fontifying %s... (syntactically...)" (buffer-name)))
    (goto-char start)
    ;;
    ;; Find the state at the `beginning-of-line' before `start'.
    (if (eq start cache)
	;; Use the cache for the state of `start'.
	(setq state font-lock-cache-state)
      ;; Find the state of `start'.
      (if (null font-lock-beginning-of-syntax-function)
	  ;; Use the state at the previous cache position, if any, or
	  ;; otherwise calculate from `point-min'.
	  (if (or (null cache) (< start cache))
	      (setq state (parse-partial-sexp (point-min) start))
	    (setq state (parse-partial-sexp cache start nil nil
					    font-lock-cache-state)))
	;; Call the function to move outside any syntactic block.
	(funcall font-lock-beginning-of-syntax-function)
	(setq state (parse-partial-sexp (point) start)))
      ;; Cache the state and position of `start'.
      (setq font-lock-cache-state state)
      (set-marker font-lock-cache-position start))
    ;;
    ;; If the region starts inside a string or comment, show the extent of it.
    (when (or (nth 3 state) (nth 4 state))
      (setq string (nth 3 state) beg (point))
      (setq state (parse-partial-sexp (point) end nil nil state 'syntax-table))
      (put-text-property beg (point) 'face 
			 (if string 
			     font-lock-string-face
			   font-lock-comment-face)))
    ;;
    ;; Find each interesting place between here and `end'.
    (while (and (< (point) end)
		(progn
		  (setq state (parse-partial-sexp (point) end nil nil state
						  'syntax-table))
		  (or (nth 3 state) (nth 4 state))))
      (setq string (nth 3 state) beg (nth 8 state))
      (setq state (parse-partial-sexp (point) end nil nil state 'syntax-table))
      (put-text-property beg (point) 'face 
			 (if string 
			     font-lock-string-face
			   font-lock-comment-face)))))

;;; End of Syntactic fontification functions.

;;; Keyword regexp fontification functions.

(defsubst font-lock-apply-highlight (highlight)
  "Apply HIGHLIGHT following a match.
HIGHLIGHT should be of the form MATCH-HIGHLIGHT, see `font-lock-keywords'."
  (let* ((match (nth 0 highlight))
	 (start (match-beginning match)) (end (match-end match))
	 (override (nth 2 highlight)))
    (cond ((not start)
	   ;; No match but we might not signal an error.
	   (or (nth 3 highlight)
	       (error "No match %d in highlight %S" match highlight)))
	  ((not override)
	   ;; Cannot override existing fontification.
	   (or (text-property-not-all start end 'face nil)
	       (put-text-property start end 'face (eval (nth 1 highlight)))))
	  ((eq override t)
	   ;; Override existing fontification.
	   (put-text-property start end 'face (eval (nth 1 highlight))))
	  ((eq override 'prepend)
	   ;; Prepend to existing fontification.
	   (font-lock-prepend-text-property start end 'face (eval (nth 1 highlight))))
	  ((eq override 'append)
	   ;; Append to existing fontification.
	   (font-lock-append-text-property start end 'face (eval (nth 1 highlight))))
	  ((eq override 'keep)
	   ;; Keep existing fontification.
	   (font-lock-fillin-text-property start end 'face (eval (nth 1 highlight)))))))

(defsubst font-lock-fontify-anchored-keywords (keywords limit)
  "Fontify according to KEYWORDS until LIMIT.
KEYWORDS should be of the form MATCH-ANCHORED, see `font-lock-keywords',
LIMIT can be modified by the value of its PRE-MATCH-FORM."
  (let ((matcher (nth 0 keywords)) (lowdarks (nthcdr 3 keywords)) highlights
	;; Evaluate PRE-MATCH-FORM.
	(pre-match-value (eval (nth 1 keywords))))
    ;; Set LIMIT to value of PRE-MATCH-FORM or the end of line.
    (if (and (numberp pre-match-value) (> pre-match-value (point)))
	(setq limit pre-match-value)
      (save-excursion (end-of-line) (setq limit (point))))
    (save-match-data
      ;; Find an occurrence of `matcher' before `limit'.
      (while (if (stringp matcher)
		 (re-search-forward matcher limit t)
	       (funcall matcher limit))
	;; Apply each highlight to this instance of `matcher'.
	(setq highlights lowdarks)
	(while highlights
	  (font-lock-apply-highlight (car highlights))
	  (setq highlights (cdr highlights)))))
    ;; Evaluate POST-MATCH-FORM.
    (eval (nth 2 keywords))))

(defun font-lock-fontify-keywords-region (start end &optional loudly)
  "Fontify according to `font-lock-keywords' between START and END.
START should be at the beginning of a line."
  (unless (eq (car font-lock-keywords) t)
    (setq font-lock-keywords (font-lock-compile-keywords font-lock-keywords)))
  (let ((case-fold-search font-lock-keywords-case-fold-search)
	(keywords (cdr font-lock-keywords))
	(bufname (buffer-name)) (count 0)
	keyword matcher highlights)
    ;;
    ;; Fontify each item in `font-lock-keywords' from `start' to `end'.
    (while keywords
      (if loudly (message "Fontifying %s... (regexps..%s)" bufname
			  (make-string (incf count) ?.)))
      ;;
      ;; Find an occurrence of `matcher' from `start' to `end'.
      (setq keyword (car keywords) matcher (car keyword))
      (goto-char start)
      (while (if (stringp matcher)
		 (re-search-forward matcher end t)
	       (funcall matcher end))
	;; Apply each highlight to this instance of `matcher', which may be
	;; specific highlights or more keywords anchored to `matcher'.
	(setq highlights (cdr keyword))
	(while highlights
	  (if (numberp (car (car highlights)))
	      (font-lock-apply-highlight (car highlights))
	    (font-lock-fontify-anchored-keywords (car highlights) end))
	  (setq highlights (cdr highlights))))
      (setq keywords (cdr keywords)))))

;;; End of Keyword regexp fontification functions.

;; Various functions.

(defun font-lock-compile-keywords (keywords)
  ;; Compile KEYWORDS into the form (t KEYWORD ...) where KEYWORD is of the
  ;; form (MATCHER HIGHLIGHT ...) as shown in `font-lock-keywords' doc string.
  (if (eq (car-safe keywords) t)
      keywords
    (cons t (mapcar 'font-lock-compile-keyword keywords))))

(defun font-lock-compile-keyword (keyword)
  (cond ((nlistp keyword)			; MATCHER
	 (list keyword '(0 font-lock-keyword-face)))
	((eq (car keyword) 'eval)		; (eval . FORM)
	 (font-lock-compile-keyword (eval (cdr keyword))))
	((eq (car-safe (cdr keyword)) 'quote)	; (MATCHER . 'FORM)
	 ;; If FORM is a FACENAME then quote it.  Otherwise ignore the quote.
	 (if (symbolp (nth 2 keyword))
	     (list (car keyword) (list 0 (cdr keyword)))
	   (font-lock-compile-keyword (cons (car keyword) (nth 2 keyword)))))
	((numberp (cdr keyword))		; (MATCHER . MATCH)
	 (list (car keyword) (list (cdr keyword) 'font-lock-keyword-face)))
	((symbolp (cdr keyword))		; (MATCHER . FACENAME)
	 (list (car keyword) (list 0 (cdr keyword))))
	((nlistp (nth 1 keyword))		; (MATCHER . HIGHLIGHT)
	 (list (car keyword) (cdr keyword)))
	(t					; (MATCHER HIGHLIGHT ...)
	 keyword)))

(defun font-lock-eval-keywords (keywords)
  ;; Evalulate KEYWORDS if a function (funcall) or variable (eval) name.
  (if (listp keywords)
      keywords
    (font-lock-eval-keywords (if (fboundp keywords)
				 (funcall keywords)
			       (eval keywords)))))

(defun font-lock-value-in-major-mode (alist)
  ;; Return value in ALIST for `major-mode', or ALIST if it is not an alist.
  ;; Structure is ((MAJOR-MODE . VALUE) ...) where MAJOR-MODE may be t.
  (if (consp alist)
      (cdr (or (assq major-mode alist) (assq t alist)))
    alist))

(defun font-lock-choose-keywords (keywords level)
  ;; Return LEVELth element of KEYWORDS.  A LEVEL of nil is equal to a
  ;; LEVEL of 0, a LEVEL of t is equal to (1- (length KEYWORDS)).
  (cond ((symbolp keywords)
	 keywords)
	((numberp level)
	 (or (nth level keywords) (car (reverse keywords))))
	((eq level t)
	 (car (reverse keywords)))
	(t
	 (car keywords))))

(defvar font-lock-set-defaults nil)	; Whether we have set up defaults.

(defun font-lock-set-defaults ()
  "Set fontification defaults appropriately for this mode.
Sets various variables using `font-lock-defaults' (or, if nil, using
`font-lock-defaults-alist') and `font-lock-maximum-decoration'."
  ;; Set fontification defaults.
  (make-local-variable 'font-lock-fontified)
  ;; Set iff not previously set.
  (unless font-lock-set-defaults
    (set (make-local-variable 'font-lock-set-defaults)		t)
    (set (make-local-variable 'font-lock-cache-state)		nil)
    (set (make-local-variable 'font-lock-cache-position)	(make-marker))
    (let* ((defaults (or font-lock-defaults
			 (cdr (assq major-mode font-lock-defaults-alist))))
	   (keywords
	    (font-lock-choose-keywords (nth 0 defaults)
	     (font-lock-value-in-major-mode font-lock-maximum-decoration)))
	   (local (cdr (assq major-mode font-lock-keywords-alist))))
      ;; Regexp fontification?
      (set (make-local-variable 'font-lock-keywords)
	   (font-lock-compile-keywords (font-lock-eval-keywords keywords)))
      ;; Local fontification?
      (while local
	(font-lock-add-keywords nil (car (car local)) (cdr (car local)))
	(setq local (cdr local)))
      ;; Syntactic fontification?
      (when (nth 1 defaults)
	(set (make-local-variable 'font-lock-keywords-only) t))
      ;; Case fold during regexp fontification?
      (when (nth 2 defaults)
	(set (make-local-variable 'font-lock-keywords-case-fold-search) t))
      ;; Syntax table for regexp and syntactic fontification?
      (when (nth 3 defaults)
	(let ((slist (nth 3 defaults)))
	  (set (make-local-variable 'font-lock-syntax-table)
	       (copy-syntax-table (syntax-table)))
	  (while slist
	    ;; The character to modify may be a single CHAR or a STRING.
	    (let ((chars (if (numberp (car (car slist)))
			     (list (car (car slist)))
			   (mapcar 'identity (car (car slist)))))
		  (syntax (cdr (car slist))))
	      (while chars
		(modify-syntax-entry (car chars) syntax
				     font-lock-syntax-table)
		(setq chars (cdr chars)))
	      (setq slist (cdr slist))))))
      ;; Syntax function for syntactic fontification?
      (when (nth 4 defaults)
	(set (make-local-variable 'font-lock-beginning-of-syntax-function)
	     (nth 4 defaults)))
      ;; Variable alist?
      (let ((alist (nthcdr 5 defaults)))
	(while alist
	  (let ((variable (car (car alist))) (value (cdr (car alist))))
	    (unless (boundp variable)
	      (set variable nil))
	    (set (make-local-variable variable) value)
	    (setq alist (cdr alist))))))))

(defun font-lock-unset-defaults ()
  "Unset fontification defaults.  See `font-lock-set-defaults'."
  (setq font-lock-set-defaults			nil
	font-lock-keywords			nil
	font-lock-keywords-only			nil
	font-lock-keywords-case-fold-search	nil
	font-lock-syntax-table			nil
	font-lock-beginning-of-syntax-function	nil)
  (let* ((defaults (or font-lock-defaults
		       (cdr (assq major-mode font-lock-defaults-alist))))
	 (alist (nthcdr 5 defaults)))
    (while alist
      (set (car (car alist)) (default-value (car (car alist))))
      (setq alist (cdr alist)))))

;;; Colour etc. support.

;; Originally these variable values were face names such as `bold' etc.
;; Now we create our own faces, but we keep these variables for compatibility
;; and they give users another mechanism for changing face appearance.
;; We now allow a FACENAME in `font-lock-keywords' to be any expression that
;; returns a face.  So the easiest thing is to continue using these variables,
;; rather than sometimes evaling FACENAME and sometimes not.  sm.
(defvar font-lock-comment-face		'font-lock-comment-face
  "Face name to use for comments.")

(defvar font-lock-string-face		'font-lock-string-face
  "Face name to use for strings.")

(defvar font-lock-keyword-face		'font-lock-keyword-face
  "Face name to use for keywords.")

(defvar font-lock-builtin-face		'font-lock-builtin-face
  "Face name to use for builtins.")

(defvar font-lock-function-name-face	'font-lock-function-name-face
  "Face name to use for function names.")

(defvar font-lock-variable-name-face	'font-lock-variable-name-face
  "Face name to use for variable names.")

(defvar font-lock-type-face		'font-lock-type-face
  "Face name to use for type and class names.")

(defvar font-lock-constant-face		'font-lock-constant-face
  "Face name to use for constant and label names.")

(defvar font-lock-warning-face		'font-lock-warning-face
  "Face name to use for things that should stand out.")

(defvar font-lock-reference-face	'font-lock-constant-face
  "This variable is obsolete.  Use font-lock-constant-face.")

;; Originally face attributes were specified via `font-lock-face-attributes'.
;; Users then changed the default face attributes by setting that variable.
;; However, we try and be back-compatible and respect its value if set except
;; for faces where M-x customize has been used to save changes for the face.
(when (boundp 'font-lock-face-attributes)
  (let ((face-attributes font-lock-face-attributes))
    (while face-attributes
      (let* ((face-attribute (pop face-attributes))
	     (face (car face-attribute)))
	;; Rustle up a `defface' SPEC from a `font-lock-face-attributes' entry.
	(unless (get face 'saved-face)
	  (let ((foreground (nth 1 face-attribute))
		(background (nth 2 face-attribute))
		(bold-p (nth 3 face-attribute))
		(italic-p (nth 4 face-attribute))
		(underline-p (nth 5 face-attribute))
		face-spec)
	    (when foreground
	      (setq face-spec (cons ':foreground (cons foreground face-spec))))
	    (when background
	      (setq face-spec (cons ':background (cons background face-spec))))
	    (when bold-p
	      (setq face-spec (append '(:bold t) face-spec)))
	    (when italic-p
	      (setq face-spec (append '(:italic t) face-spec)))
	    (when underline-p
	      (setq face-spec (append '(:underline t) face-spec)))
	    (custom-declare-face face (list (list t face-spec)) nil)))))))

;; But now we do it the custom way.  Note that `defface' will not overwrite any
;; faces declared above via `custom-declare-face'.
(defface font-lock-comment-face
  '((((class grayscale) (background light))
     (:foreground "DimGray" :bold t :italic t))
    (((class grayscale) (background dark))
     (:foreground "LightGray" :bold t :italic t))
    (((class color) (background light)) (:foreground "Firebrick"))
    (((class color) (background dark)) (:foreground "OrangeRed"))
    (t (:bold t :italic t)))
  "Font Lock mode face used to highlight comments."
  :group 'font-lock-highlighting-faces)

(defface font-lock-string-face
  '((((class grayscale) (background light)) (:foreground "DimGray" :italic t))
    (((class grayscale) (background dark)) (:foreground "LightGray" :italic t))
    (((class color) (background light)) (:foreground "RosyBrown"))
    (((class color) (background dark)) (:foreground "LightSalmon"))
    (t (:italic t)))
  "Font Lock mode face used to highlight strings."
  :group 'font-lock-highlighting-faces)

(defface font-lock-keyword-face
  '((((class grayscale) (background light)) (:foreground "LightGray" :bold t))
    (((class grayscale) (background dark)) (:foreground "DimGray" :bold t))
    (((class color) (background light)) (:foreground "Purple"))
    (((class color) (background dark)) (:foreground "Cyan"))
    (t (:bold t)))
  "Font Lock mode face used to highlight keywords."
  :group 'font-lock-highlighting-faces)

(defface font-lock-builtin-face
  '((((class grayscale) (background light)) (:foreground "LightGray" :bold t))
    (((class grayscale) (background dark)) (:foreground "DimGray" :bold t))
    (((class color) (background light)) (:foreground "Orchid"))
    (((class color) (background dark)) (:foreground "LightSteelBlue"))
    (t (:bold t)))
  "Font Lock mode face used to highlight builtins."
  :group 'font-lock-highlighting-faces)

(defface font-lock-function-name-face
  '((((class color) (background light)) (:foreground "Blue"))
    (((class color) (background dark)) (:foreground "LightSkyBlue"))
    (t (:inverse-video t :bold t)))
  "Font Lock mode face used to highlight function names."
  :group 'font-lock-highlighting-faces)

(defface font-lock-variable-name-face
  '((((class grayscale) (background light))
     (:foreground "Gray90" :bold t :italic t))
    (((class grayscale) (background dark))
     (:foreground "DimGray" :bold t :italic t))
    (((class color) (background light)) (:foreground "DarkGoldenrod"))
    (((class color) (background dark)) (:foreground "LightGoldenrod"))
    (t (:bold t :italic t)))
  "Font Lock mode face used to highlight variable names."
  :group 'font-lock-highlighting-faces)

(defface font-lock-type-face
  '((((class grayscale) (background light)) (:foreground "Gray90" :bold t))
    (((class grayscale) (background dark)) (:foreground "DimGray" :bold t))
    (((class color) (background light)) (:foreground "ForestGreen"))
    (((class color) (background dark)) (:foreground "PaleGreen"))
    (t (:bold t :underline t)))
  "Font Lock mode face used to highlight type and classes."
  :group 'font-lock-highlighting-faces)

(defface font-lock-constant-face
  '((((class grayscale) (background light))
     (:foreground "LightGray" :bold t :underline t))
    (((class grayscale) (background dark))
     (:foreground "Gray50" :bold t :underline t))
    (((class color) (background light)) (:foreground "CadetBlue"))
    (((class color) (background dark)) (:foreground "Aquamarine"))
    (t (:bold t :underline t)))
  "Font Lock mode face used to highlight constants and labels."
  :group 'font-lock-highlighting-faces)

(defface font-lock-warning-face
  '((((class color) (background light)) (:foreground "Red" :bold t))
    (((class color) (background dark)) (:foreground "Pink" :bold t))
    (t (:inverse-video t :bold t)))
  "Font Lock mode face used to highlight warnings."
  :group 'font-lock-highlighting-faces)

;;; End of Colour etc. support.

;;; Menu support.

;; This section of code is commented out because Emacs does not have real menu
;; buttons.  (We can mimic them by putting "( ) " or "(X) " at the beginning of
;; the menu entry text, but with Xt it looks both ugly and embarrassingly
;; amateur.)  If/When Emacs gets real menus buttons, put in menu-bar.el after
;; the entry for "Text Properties" something like:
;;
;; (define-key menu-bar-edit-menu [font-lock]
;;   (cons "Syntax Highlighting" font-lock-menu))
;;
;; and remove a single ";" from the beginning of each line in the rest of this
;; section.  Probably the mechanism for telling the menu code what are menu
;; buttons and when they are on or off needs tweaking.  I have assumed that the
;; mechanism is via `menu-toggle' and `menu-selected' symbol properties.  sm.

;;;;###autoload
;(progn
;  ;; Make the Font Lock menu.
;  (defvar font-lock-menu (make-sparse-keymap "Syntax Highlighting"))
;  ;; Add the menu items in reverse order.
;  (define-key font-lock-menu [fontify-less]
;    '("Less In Current Buffer" . font-lock-fontify-less))
;  (define-key font-lock-menu [fontify-more]
;    '("More In Current Buffer" . font-lock-fontify-more))
;  (define-key font-lock-menu [font-lock-sep]
;    '("--"))
;  (define-key font-lock-menu [font-lock-mode]
;    '("In Current Buffer" . font-lock-mode))
;  (define-key font-lock-menu [global-font-lock-mode]
;    '("In All Buffers" . global-font-lock-mode)))
;
;;;;###autoload
;(progn
;  ;; We put the appropriate `menu-enable' etc. symbol property values on when
;  ;; font-lock.el is loaded, so we don't need to autoload the three variables.
;  (put 'global-font-lock-mode 'menu-toggle t)
;  (put 'font-lock-mode 'menu-toggle t)
;  (put 'font-lock-fontify-more 'menu-enable '(identity))
;  (put 'font-lock-fontify-less 'menu-enable '(identity)))
;
;;; Put the appropriate symbol property values on now.  See above.
;(put 'global-font-lock-mode 'menu-selected 'global-font-lock-mode)
;(put 'font-lock-mode 'menu-selected 'font-lock-mode)
;(put 'font-lock-fontify-more 'menu-enable '(nth 2 font-lock-fontify-level))
;(put 'font-lock-fontify-less 'menu-enable '(nth 1 font-lock-fontify-level))
;
;(defvar font-lock-fontify-level nil)	; For less/more fontification.
;
;(defun font-lock-fontify-level (level)
;  (let ((font-lock-maximum-decoration level))
;    (when font-lock-mode
;      (font-lock-mode))
;    (font-lock-mode)
;    (when font-lock-verbose
;      (message "Fontifying %s... level %d" (buffer-name) level))))
;
;(defun font-lock-fontify-less ()
;  "Fontify the current buffer with less decoration.
;See `font-lock-maximum-decoration'."
;  (interactive)
;  ;; Check in case we get called interactively.
;  (if (nth 1 font-lock-fontify-level)
;      (font-lock-fontify-level (1- (car font-lock-fontify-level)))
;    (error "No less decoration")))
;
;(defun font-lock-fontify-more ()
;  "Fontify the current buffer with more decoration.
;See `font-lock-maximum-decoration'."
;  (interactive)
;  ;; Check in case we get called interactively.
;  (if (nth 2 font-lock-fontify-level)
;      (font-lock-fontify-level (1+ (car font-lock-fontify-level)))
;    (error "No more decoration")))
;
;;; This should be called by `font-lock-set-defaults'.
;(defun font-lock-set-menu ()
;  ;; Activate less/more fontification entries if there are multiple levels for
;  ;; the current buffer.  Sets `font-lock-fontify-level' to be of the form
;  ;; (CURRENT-LEVEL IS-LOWER-LEVEL-P IS-HIGHER-LEVEL-P) for menu activation.
;  (let ((keywords (or (nth 0 font-lock-defaults)
;		      (nth 1 (assq major-mode font-lock-defaults-alist))))
;	(level (font-lock-value-in-major-mode font-lock-maximum-decoration)))
;    (make-local-variable 'font-lock-fontify-level)
;    (if (or (symbolp keywords) (= (length keywords) 1))
;	(font-lock-unset-menu)
;      (cond ((eq level t)
;	     (setq level (1- (length keywords))))
;	    ((or (null level) (zerop level))
;	     ;; The default level is usually, but not necessarily, level 1.
;	     (setq level (- (length keywords)
;			    (length (member (eval (car keywords))
;					    (mapcar 'eval (cdr keywords))))))))
;      (setq font-lock-fontify-level (list level (> level 1)
;					  (< level (1- (length keywords))))))))
;
;;; This should be called by `font-lock-unset-defaults'.
;(defun font-lock-unset-menu ()
;  ;; Deactivate less/more fontification entries.
;  (setq font-lock-fontify-level nil))

;;; End of Menu support.

;;; Various regexp information shared by several modes.
;;; Information specific to a single mode should go in its load library.

;; Font Lock support for C, C++, Objective-C and Java modes will one day be in
;; some cc-font.el (and required by cc-mode.el).  However, the below function
;; should stay in font-lock.el, since it is used by other libraries.  sm.

(defun font-lock-match-c-style-declaration-item-and-skip-to-next (limit)
  "Match, and move over, any declaration/definition item after point.
Matches after point, but ignores leading whitespace and `*' characters.
Does not move further than LIMIT.

The expected syntax of a declaration/definition item is `word' (preceded by
optional whitespace and `*' characters and proceeded by optional whitespace)
optionally followed by a `('.  Everything following the item (but belonging to
it) is expected to by skip-able by `scan-sexps', and items are expected to be
separated with a `,' and to be terminated with a `;'.

Thus the regexp matches after point:	word (
					^^^^ ^
Where the match subexpressions are:	  1  2

The item is delimited by (match-beginning 1) and (match-end 1).
If (match-beginning 2) is non-nil, the item is followed by a `('.

This function could be MATCHER in a MATCH-ANCHORED `font-lock-keywords' item."
  (when (looking-at "[ \t*]*\\(\\sw+\\)[ \t]*\\((\\)?")
    (save-match-data
      (condition-case nil
	  (save-restriction
	    ;; Restrict to the end of line, currently guaranteed to be LIMIT.
	    (narrow-to-region (point-min) limit)
	    (goto-char (match-end 1))
	    ;; Move over any item value, etc., to the next item.
	    (while (not (looking-at "[ \t]*\\(\\(,\\)\\|;\\|$\\)"))
	      (goto-char (or (scan-sexps (point) 1) (point-max))))
	    (goto-char (match-end 2)))
	(error t)))))

;; Lisp.

(defconst lisp-font-lock-keywords-1
  (eval-when-compile
    (list
     ;;
     ;; Definitions.
     (list (concat "(\\(def\\("
		   ;; Function declarations.
		   "\\(advice\\|alias\\|generic\\|macro\\*?\\|method\\|"
		   "setf\\|subst\\*?\\|un\\*?\\|"
		   "ine-\\(derived-mode\\|function\\|"
		   "skeleton\\|widget\\)\\)\\|"
		   ;; Variable declarations.
		   "\\(const\\|custom\\|face\\|var\\)\\|"
		   ;; Structure declarations.
		   "\\(class\\|group\\|package\\|struct\\|type\\)"
		   "\\)\\)\\>"
		   ;; Any whitespace and defined object.
		   "[ \t'\(]*"
		   "\\(\\sw+\\)?")
	   '(1 font-lock-keyword-face)
	   '(7 (cond ((match-beginning 3) font-lock-function-name-face)
		     ((match-beginning 5) font-lock-variable-name-face)
		     (t font-lock-type-face))
	       nil t))
     ;;
     ;; Emacs Lisp autoload cookies.
     '("^;;;###\\(autoload\\)\\>" 1 font-lock-warning-face prepend)
     ))
  "Subdued level highlighting for Lisp modes.")

(defconst lisp-font-lock-keywords-2
  (append lisp-font-lock-keywords-1
   (eval-when-compile
     (list
      ;;
      ;; Control structures.  Emacs Lisp forms.
      (cons (concat
	     "(" (regexp-opt
		  '("cond" "if" "while" "catch" "throw" "let" "let*"
		    "prog" "progn" "progv" "prog1" "prog2" "prog*"
		    "inline" "save-restriction" "save-excursion"
		    "save-window-excursion" "save-selected-window"
		    "save-match-data" "save-current-buffer" "unwind-protect"
		    "condition-case" "track-mouse"
		    "eval-after-load" "eval-and-compile" "eval-when-compile"
		    "eval-when"
		    "with-current-buffer" "with-electric-help"
		    "with-output-to-string" "with-output-to-temp-buffer"
		    "with-temp-buffer" "with-temp-file"
		    "with-timeout") t)
	     "\\>")
	    1)
      ;;
      ;; Control structures.  Common Lisp forms.
      (cons (concat
	     "(" (regexp-opt
		  '("when" "unless" "case" "ecase" "typecase" "etypecase"
		    "loop" "do" "do*" "dotimes" "dolist"
		    "proclaim" "declaim" "declare"
		    "lexical-let" "lexical-let*" "flet" "labels"
		    "return" "return-from") t)
	     "\\>")
	    1)
      ;;
      ;; Feature symbols as constants.
      '("(\\(featurep\\|provide\\|require\\)\\>[ \t']*\\(\\sw+\\)?"
	(1 font-lock-keyword-face) (2 font-lock-constant-face nil t))
      ;;
      ;; Words inside \\[] tend to be for `substitute-command-keys'.
      '("\\\\\\\\\\[\\(\\sw+\\)]" 1 font-lock-constant-face prepend)
      ;;
      ;; Words inside `' tend to be symbol names.
      '("`\\(\\sw\\sw+\\)'" 1 font-lock-constant-face prepend)
      ;;
      ;; Constant values.
      '("\\<:\\sw\\sw+\\>" 0 font-lock-builtin-face)
      ;;
      ;; ELisp and CLisp `&' keywords as types.
      '("\\<\\&\\sw+\\>" . font-lock-type-face)
      )))
  "Gaudy level highlighting for Lisp modes.")

(defvar lisp-font-lock-keywords lisp-font-lock-keywords-1
  "Default expressions to highlight in Lisp modes.")

;; TeX.

;(defvar tex-font-lock-keywords
;  ;; Regexps updated with help from Ulrik Dickow <dickow@nbi.dk>.
;  '(("\\\\\\(begin\\|end\\|newcommand\\){\\([a-zA-Z0-9\\*]+\\)}"
;     2 font-lock-function-name-face)
;    ("\\\\\\(cite\\|label\\|pageref\\|ref\\){\\([^} \t\n]+\\)}"
;     2 font-lock-constant-face)
;    ;; It seems a bit dubious to use `bold' and `italic' faces since we might
;    ;; not be able to display those fonts.
;    ("{\\\\bf\\([^}]+\\)}" 1 'bold keep)
;    ("{\\\\\\(em\\|it\\|sl\\)\\([^}]+\\)}" 2 'italic keep)
;    ("\\\\\\([a-zA-Z@]+\\|.\\)" . font-lock-keyword-face)
;    ("^[ \t\n]*\\\\def[\\\\@]\\(\\w+\\)" 1 font-lock-function-name-face keep))
;  ;; Rewritten and extended for LaTeX2e by Ulrik Dickow <dickow@nbi.dk>.
;  '(("\\\\\\(begin\\|end\\|newcommand\\){\\([a-zA-Z0-9\\*]+\\)}"
;     2 font-lock-function-name-face)
;    ("\\\\\\(cite\\|label\\|pageref\\|ref\\){\\([^} \t\n]+\\)}"
;     2 font-lock-constant-face)
;    ("^[ \t]*\\\\def\\\\\\(\\(\\w\\|@\\)+\\)" 1 font-lock-function-name-face)
;    "\\\\\\([a-zA-Z@]+\\|.\\)"
;    ;; It seems a bit dubious to use `bold' and `italic' faces since we might
;    ;; not be able to display those fonts.
;    ;; LaTeX2e: \emph{This is emphasized}.
;    ("\\\\emph{\\([^}]+\\)}" 1 'italic keep)
;    ;; LaTeX2e: \textbf{This is bold}, \textit{...}, \textsl{...}
;    ("\\\\text\\(\\(bf\\)\\|it\\|sl\\){\\([^}]+\\)}"
;     3 (if (match-beginning 2) 'bold 'italic) keep)
;    ;; Old-style bf/em/it/sl.  Stop at `\\' and un-escaped `&', for tables.
;    ("\\\\\\(\\(bf\\)\\|em\\|it\\|sl\\)\\>\\(\\([^}&\\]\\|\\\\[^\\]\\)+\\)"
;     3 (if (match-beginning 2) 'bold 'italic) keep))

;; Rewritten with the help of Alexandra Bac <abac@welcome.disi.unige.it>.
(defconst tex-font-lock-keywords-1
  (eval-when-compile
    (let* (;;
	   ;; Names of commands whose arg should be fontified as heading, etc.
	   (headings (regexp-opt '("title"  "begin" "end") t))
	   ;; These commands have optional args.
	   (headings-opt (regexp-opt
			  '("chapter" "part"
			    "section" "subsection" "subsubsection"
			    "section*" "subsection*" "subsubsection*"
			    "paragraph" "subparagraph" "subsubparagraph"
			    "paragraph*" "subparagraph*" "subsubparagraph*"
			    "newcommand" "renewcommand" "newenvironment"
			    "newtheorem"
			    "newcommand*" "renewcommand*" "newenvironment*"
			    "newtheorem*")
			  t))
	   (variables (regexp-opt
		       '("newcounter" "newcounter*" "setcounter" "addtocounter"
			 "setlength" "addtolength" "settowidth")
		       t))
	   (includes (regexp-opt
		      '("input" "include" "includeonly" "bibliography"
			"epsfig" "psfig" "epsf")
		      t))
	   (includes-opt (regexp-opt
			  '("nofiles" "usepackage"
			    "includegraphics" "includegraphics*")
			  t))
	   ;; Miscellany.
	   (slash "\\\\")
	   (opt "\\(\\[[^]]*\\]\\)?")
	   (arg "{\\([^}]+\\)")
	   (opt-depth (regexp-opt-depth opt))
	   (arg-depth (regexp-opt-depth arg))
	   )
      (list
       ;;
       ;; Heading args.
       (list (concat slash headings arg)
	     (+ (regexp-opt-depth headings) arg-depth)
	     'font-lock-function-name-face)
       (list (concat slash headings-opt opt arg)
	     (+ (regexp-opt-depth headings-opt) opt-depth arg-depth)
	     'font-lock-function-name-face)
       ;;
       ;; Variable args.
       (list (concat slash variables arg)
	     (+ (regexp-opt-depth variables) arg-depth)
	     'font-lock-variable-name-face)
       ;;
       ;; Include args.
       (list (concat slash includes arg)
	     (+ (regexp-opt-depth includes) arg-depth)
	     'font-lock-builtin-face)
       (list (concat slash includes-opt opt arg)
	     (+ (regexp-opt-depth includes-opt) opt-depth arg-depth)
	     'font-lock-builtin-face)
       ;;
       ;; Definitions.  I think.
       '("^[ \t]*\\\\def\\\\\\(\\(\\w\\|@\\)+\\)"
	 1 font-lock-function-name-face)
       )))
  "Subdued expressions to highlight in TeX modes.")

(defconst tex-font-lock-keywords-2
  (append tex-font-lock-keywords-1
   (eval-when-compile
     (let* (;;
	    ;; Names of commands whose arg should be fontified with fonts.
	    (bold (regexp-opt '("bf" "textbf" "textsc" "textup"
				"boldsymbol" "pmb") t))
	    (italic (regexp-opt '("it" "textit" "textsl" "emph") t))
	    (type (regexp-opt '("texttt" "textmd" "textrm" "textsf") t))
	    ;;
	    ;; Names of commands whose arg should be fontified as a citation.
	    (citations (regexp-opt
			'("label" "ref" "pageref" "vref" "eqref")
			t))
	    (citations-opt (regexp-opt
			    '("cite" "caption" "index" "glossary"
			      "footnote" "footnotemark" "footnotetext")
			t))
	    ;;
	    ;; Names of commands that should be fontified.
	    (specials (regexp-opt
		       '("\\"
			 "linebreak" "nolinebreak" "pagebreak" "nopagebreak"
			 "newline" "newpage" "clearpage" "cleardoublepage"
			 "displaybreak" "allowdisplaybreaks" "enlargethispage")
		       t))
	    (general "\\([a-zA-Z@]+\\**\\|[^ \t\n]\\)")
	    ;;
	    ;; Miscellany.
	    (slash "\\\\")
	    (opt "\\(\\[[^]]*\\]\\)?")
	    (arg "{\\([^}]+\\)")
	    (opt-depth (regexp-opt-depth opt))
	    (arg-depth (regexp-opt-depth arg))
	    )
       (list
	;;
	;; Citation args.
	(list (concat slash citations arg)
	      (+ (regexp-opt-depth citations) arg-depth)
	      'font-lock-constant-face)
	(list (concat slash citations-opt opt arg)
	      (+ (regexp-opt-depth citations-opt) opt-depth arg-depth)
	      'font-lock-constant-face)
	;;
	;; Command names, special and general.
	(cons (concat slash specials) 'font-lock-warning-face)
	(concat slash general)
	;;
	;; Font environments.  It seems a bit dubious to use `bold' etc. faces
	;; since we might not be able to display those fonts.
	(list (concat slash bold arg)
	      (+ (regexp-opt-depth bold) arg-depth)
	      '(quote bold) 'keep)
	(list (concat slash italic arg)
	      (+ (regexp-opt-depth italic) arg-depth)
	      '(quote italic) 'keep)
	(list (concat slash type arg)
	      (+ (regexp-opt-depth type) arg-depth)
	      '(quote bold-italic) 'keep)
	;;
	;; Old-style bf/em/it/sl.  Stop at `\\' and un-escaped `&', for tables.
	(list (concat "\\\\\\(\\(bf\\)\\|em\\|it\\|sl\\)\\>"
		      "\\(\\([^}&\\]\\|\\\\[^\\]\\)+\\)")
	      3 '(if (match-beginning 2) 'bold 'italic) 'keep)
	))))
   "Gaudy expressions to highlight in TeX modes.")

(defvar tex-font-lock-keywords tex-font-lock-keywords-1
  "Default expressions to highlight in TeX modes.")

;;; User choices.

;; These provide a means to fontify types not defined by the language.  Those
;; types might be the user's own or they might be generally accepted and used.
;; Generally accepted types are used to provide default variable values.

(define-widget 'font-lock-extra-types-widget 'radio
  "Widget `:type' for members of the custom group `font-lock-extra-types'.
Members should `:load' the package `font-lock' to use this widget."
  :args '((const :tag "none" nil)
	  (repeat :tag "types" regexp)))

(defcustom c-font-lock-extra-types '("FILE" "\\sw+_t")
  "*List of extra types to fontify in C mode.
Each list item should be a regexp not containing word-delimiters.
For example, a value of (\"FILE\" \"\\\\sw+_t\") means the word FILE and words
ending in _t are treated as type names.

The value of this variable is used when Font Lock mode is turned on."
  :type 'font-lock-extra-types-widget
  :group 'font-lock-extra-types)

(defcustom c++-font-lock-extra-types
  '("\\([iof]\\|str\\)+stream\\(buf\\)?" "ios"
    "string" "rope"
    "list" "slist"
    "deque" "vector" "bit_vector"
    "set" "multiset"
    "map" "multimap"
    "hash\\(_\\(m\\(ap\\|ulti\\(map\\|set\\)\\)\\|set\\)\\)?"
    "stack" "queue" "priority_queue"
    "iterator" "const_iterator" "reverse_iterator" "const_reverse_iterator")
  "*List of extra types to fontify in C++ mode.
Each list item should be a regexp not containing word-delimiters.
For example, a value of (\"string\") means the word string is treated as a type
name.

The value of this variable is used when Font Lock mode is turned on."
  :type 'font-lock-extra-types-widget
  :group 'font-lock-extra-types)

(defcustom objc-font-lock-extra-types '("Class" "BOOL" "IMP" "SEL")
  "*List of extra types to fontify in Objective-C mode.
Each list item should be a regexp not containing word-delimiters.
For example, a value of (\"Class\" \"BOOL\" \"IMP\" \"SEL\") means the words
Class, BOOL, IMP and SEL are treated as type names.

The value of this variable is used when Font Lock mode is turned on."
  :type 'font-lock-extra-types-widget
  :group 'font-lock-extra-types)

(defcustom java-font-lock-extra-types '("[A-Z\300-\326\330-\337]\\sw+")
  "*List of extra types to fontify in Java mode.
Each list item should be a regexp not containing word-delimiters.
For example, a value of (\"[A-Z\300-\326\330-\337]\\\\sw+\") means capitalised
words (and words conforming to the Java id spec) are treated as type names.

The value of this variable is used when Font Lock mode is turned on."
  :type 'font-lock-extra-types-widget
  :group 'font-lock-extra-types)

;;; C.

;; [Murmur murmur murmur] Maestro, drum-roll please...  [Murmur murmur murmur.]
;; Ahem.  [Murmur murmur murmur] Lay-dees an Gennel-men.  [Murmur murmur shhh!]
;; I am most proud and humbly honoured today [murmur murmur cough] to present
;; to you good people, the winner of the Second Millennium Award for The Most
;; Hairy Language Syntax.  [Ahhh!]  All rise please.  [Shuffle shuffle
;; shuffle.]  And a round of applause please.  For...  The C Language!  [Roar.]
;;
;; Thank you...  You are too kind...  It is with a feeling of great privilege
;; and indeed emotion [sob] that I accept this award.  It has been a long hard
;; road.  But we know our destiny.  And our future.  For we must not rest.
;; There are more tokens to overload, more shoehorn, more methodologies.  But
;; more is a plus!  [Ha ha ha.]  And more means plus!  [Ho ho ho.]  The future
;; is C++!  [Ohhh!]  The Third Millennium Award...  Will be ours!  [Roar.]

(defconst c-font-lock-keywords-1 nil
  "Subdued level highlighting for C mode.")

(defconst c-font-lock-keywords-2 nil
  "Medium level highlighting for C mode.
See also `c-font-lock-extra-types'.")

(defconst c-font-lock-keywords-3 nil
  "Gaudy level highlighting for C mode.
See also `c-font-lock-extra-types'.")

(let* ((c-keywords
	(eval-when-compile
	  (regexp-opt '("break" "continue" "do" "else" "for" "if" "return"
			"switch" "while" "sizeof") t)))
       (c-type-types
	`(mapconcat 'identity
	  (cons 
	   (,@ (eval-when-compile
		 (regexp-opt
		  '("auto" "extern" "register" "static" "typedef" "struct"
		    "union" "enum" "signed" "unsigned" "short" "long"
		    "int" "char" "float" "double" "void" "volatile" "const"))))
	   c-font-lock-extra-types)
	  "\\|"))
       (c-type-depth `(regexp-opt-depth (,@ c-type-types)))
       )
 (setq c-font-lock-keywords-1
  (list
   ;;
   ;; These are all anchored at the beginning of line for speed.
   ;; Note that `c++-font-lock-keywords-1' depends on `c-font-lock-keywords-1'.
   ;;
   ;; Fontify function name definitions (GNU style; without type on line).
   '("^\\(\\sw+\\)[ \t]*(" 1 font-lock-function-name-face)
   ;;
   ;; Fontify error directives.
   '("^#[ \t]*error[ \t]+\\(.+\\)" 1 font-lock-warning-face prepend)
   ;;
   ;; Fontify filenames in #include <...> preprocessor directives as strings.
   '("^#[ \t]*\\(import\\|include\\)[ \t]*\\(<[^>\"\n]*>?\\)"
     2 font-lock-string-face)
   ;;
   ;; Fontify function macro names.
   '("^#[ \t]*define[ \t]+\\(\\sw+\\)(" 1 font-lock-function-name-face)
   ;;
   ;; Fontify symbol names in #elif or #if ... defined preprocessor directives.
   '("^#[ \t]*\\(elif\\|if\\)\\>"
     ("\\<\\(defined\\)\\>[ \t]*(?\\(\\sw+\\)?" nil nil
      (1 font-lock-builtin-face) (2 font-lock-variable-name-face nil t)))
   ;;
   ;; Fontify otherwise as symbol names, and the preprocessor directive names.
   '("^#[ \t]*\\(\\sw+\\)\\>[ \t!]*\\(\\sw+\\)?"
     (1 font-lock-builtin-face) (2 font-lock-variable-name-face nil t))
   ))

 (setq c-font-lock-keywords-2
  (append c-font-lock-keywords-1
   (list
    ;;
    ;; Simple regexps for speed.
    ;;
    ;; Fontify all type specifiers.
    `(eval .
      (cons (concat "\\<\\(" (,@ c-type-types) "\\)\\>") 'font-lock-type-face))
    ;;
    ;; Fontify all builtin keywords (except case, default and goto; see below).
    (concat "\\<" c-keywords "\\>")
    ;;
    ;; Fontify case/goto keywords and targets, and case default/goto tags.
    '("\\<\\(case\\|goto\\)\\>[ \t]*\\(-?\\sw+\\)?"
      (1 font-lock-keyword-face) (2 font-lock-constant-face nil t))
    ;; Anders Lindgren <andersl@csd.uu.se> points out that it is quicker to use
    ;; MATCH-ANCHORED to effectively anchor the regexp on the left.
    ;; This must come after the one for keywords and targets.
    '(":" ("^[ \t]*\\(\\sw+\\)[ \t]*:"
	   (beginning-of-line) (end-of-line)
	   (1 font-lock-constant-face)))
    )))

 (setq c-font-lock-keywords-3
  (append c-font-lock-keywords-2
   ;;
   ;; More complicated regexps for more complete highlighting for types.
   ;; We still have to fontify type specifiers individually, as C is so hairy.
   (list
    ;;
    ;; Fontify all storage classes and type specifiers, plus their items.
    `(eval .
      (list (concat "\\<\\(" (,@ c-type-types) "\\)\\>"
		    "\\([ \t*&]+\\sw+\\>\\)*")
	    ;; Fontify each declaration item.
	    (list 'font-lock-match-c-style-declaration-item-and-skip-to-next
		  ;; Start with point after all type specifiers.
		  (list 'goto-char (list 'or (list 'match-beginning
						   (+ (,@ c-type-depth) 2))
					 '(match-end 1)))
		  ;; Finish with point after first type specifier.
		  '(goto-char (match-end 1))
		  ;; Fontify as a variable or function name.
		  '(1 (if (match-beginning 2)
			  font-lock-function-name-face
			font-lock-variable-name-face)))))
    ;;
    ;; Fontify structures, or typedef names, plus their items.
    '("\\(}\\)[ \t*]*\\sw"
      (font-lock-match-c-style-declaration-item-and-skip-to-next
       (goto-char (match-end 1)) nil
       (1 (if (match-beginning 2)
	      font-lock-function-name-face
	    font-lock-variable-name-face))))
    ;;
    ;; Fontify anything at beginning of line as a declaration or definition.
    '("^\\(\\sw+\\)\\>\\([ \t*]+\\sw+\\>\\)*"
      (1 font-lock-type-face)
      (font-lock-match-c-style-declaration-item-and-skip-to-next
       (goto-char (or (match-beginning 2) (match-end 1))) nil
       (1 (if (match-beginning 2)
	      font-lock-function-name-face
	    font-lock-variable-name-face))))
    )))
 )

(defvar c-font-lock-keywords c-font-lock-keywords-1
  "Default expressions to highlight in C mode.
See also `c-font-lock-extra-types'.")

;;; C++.

(defconst c++-font-lock-keywords-1 nil
  "Subdued level highlighting for C++ mode.")

(defconst c++-font-lock-keywords-2 nil
  "Medium level highlighting for C++ mode.
See also `c++-font-lock-extra-types'.")

(defconst c++-font-lock-keywords-3 nil
  "Gaudy level highlighting for C++ mode.
See also `c++-font-lock-extra-types'.")

(defun font-lock-match-c++-style-declaration-item-and-skip-to-next (limit)
  ;; Regexp matches after point:		word<word>::word (
  ;;						^^^^ ^^^^   ^^^^ ^
  ;; Where the match subexpressions are:	  1    3      5  6
  ;;
  ;; Item is delimited by (match-beginning 1) and (match-end 1).
  ;; If (match-beginning 3) is non-nil, that part of the item incloses a `<>'.
  ;; If (match-beginning 5) is non-nil, that part of the item follows a `::'.
  ;; If (match-beginning 6) is non-nil, the item is followed by a `('.
  (when (looking-at (eval-when-compile
		      (concat
		       ;; Skip any leading whitespace.
		       "[ \t*&]*"
		       ;; This is `c++-type-spec' from below.  (Hint hint!)
		       "\\(\\sw+\\)"				; The instance?
		       "\\([ \t]*<\\([^>\n]+\\)[ \t*&]*>\\)?"	; Or template?
		       "\\([ \t]*::[ \t*~]*\\(\\sw+\\)\\)*"	; Or member?
		       ;; Match any trailing parenthesis.
		       "[ \t]*\\((\\)?")))
    (save-match-data
      (condition-case nil
	  (save-restriction
	    ;; Restrict to the end of line, currently guaranteed to be LIMIT.
	    (narrow-to-region (point-min) limit)
	    (goto-char (match-end 1))
	    ;; Move over any item value, etc., to the next item.
	    (while (not (looking-at "[ \t]*\\(\\(,\\)\\|;\\|$\\)"))
	      (goto-char (or (scan-sexps (point) 1) (point-max))))
	    (goto-char (match-end 2)))
	(error t)))))

(let* ((c++-keywords
	(eval-when-compile
	  (regexp-opt
	   '("break" "continue" "do" "else" "for" "if" "return" "switch"
	     "while" "asm" "catch" "delete" "new" "sizeof" "this" "throw" "try"
	     ;; Eric Hopper <hopper@omnifarious.mn.org> says these are new.
	     "static_cast" "dynamic_cast" "const_cast" "reinterpret_cast") t)))
       (c++-operators
	(eval-when-compile
	  (regexp-opt
	   ;; Taken from Stroustrup, minus keywords otherwise fontified.
	   '("+" "-" "*" "/" "%" "^" "&" "|" "~" "!" "=" "<" ">" "+=" "-="
	     "*=" "/=" "%=" "^=" "&=" "|=" "<<" ">>" ">>=" "<<=" "==" "!="
	     "<=" ">=" "&&" "||" "++" "--" "->*" "," "->" "[]" "()"))))
       (c++-type-types
	`(mapconcat 'identity
	  (cons 
	   (,@ (eval-when-compile
		 (regexp-opt
		  '("extern" "auto" "register" "static" "typedef" "struct"
		    "union" "enum" "signed" "unsigned" "short" "long"
		    "int" "char" "float" "double" "void" "volatile" "const"
		    "inline" "friend" "bool" "virtual" "complex" "template"
		    "namespace" "using"
		    ;; Mark Mitchell <mmitchell@usa.net> says these are new.
		    "explicit" "mutable"
		    ;; Branko Cibej <branko.cibej@hermes.si> suggests this.
		    "export"))))
	   c++-font-lock-extra-types)
	  "\\|"))
       ;;
       ;; A brave attempt to match templates following a type and/or match
       ;; class membership.  See and sync the above function
       ;; `font-lock-match-c++-style-declaration-item-and-skip-to-next'.
       (c++-type-suffix (concat "\\([ \t]*<\\([^>\n]+\\)[ \t*&]*>\\)?"
				"\\([ \t]*::[ \t*~]*\\(\\sw+\\)\\)*"))
       ;; If the string is a type, it may be followed by the cruft above.
       (c++-type-spec (concat "\\(\\sw+\\)\\>" c++-type-suffix))
       ;;
       ;; Parenthesis depth of user-defined types not forgetting their cruft.
       (c++-type-depth `(regexp-opt-depth
			 (concat (,@ c++-type-types) (,@ c++-type-suffix))))
       )
 (setq c++-font-lock-keywords-1
  (append
   ;;
   ;; The list `c-font-lock-keywords-1' less that for function names.
   (cdr c-font-lock-keywords-1)
   (list
    ;;
    ;; Class names etc.
    (list (concat "\\<\\(class\\|public\\|private\\|protected\\|typename\\)\\>"
		  "[ \t]*"
		  "\\(" c++-type-spec "\\)?")
	  '(1 font-lock-type-face)
	  '(3 (if (match-beginning 6)
		  font-lock-type-face
		font-lock-function-name-face) nil t)
	  '(5 font-lock-function-name-face nil t)
	  '(7 font-lock-function-name-face nil t))
    ;;
    ;; Fontify function name definitions, possibly incorporating class names.
    (list (concat "^" c++-type-spec "[ \t]*(")
	  '(1 (if (or (match-beginning 2) (match-beginning 4))
		  font-lock-type-face
		font-lock-function-name-face))
	  '(3 font-lock-function-name-face nil t)
	  '(5 font-lock-function-name-face nil t))
    )))

 (setq c++-font-lock-keywords-2
  (append c++-font-lock-keywords-1
   (list
    ;;
    ;; The list `c-font-lock-keywords-2' for C++ plus operator overloading.
    `(eval .
      (cons (concat "\\<\\(" (,@ c++-type-types) "\\)\\>")
	    'font-lock-type-face))
    ;;
    ;; Fontify operator overloading.
    (list (concat "\\<\\(operator\\)\\>[ \t]*\\(" c++-operators "\\)?")
	  '(1 font-lock-keyword-face)
	  '(2 font-lock-builtin-face nil t))
    ;;
    ;; Fontify case/goto keywords and targets, and case default/goto tags.
    '("\\<\\(case\\|goto\\)\\>[ \t]*\\(-?\\sw+\\)?"
      (1 font-lock-keyword-face) (2 font-lock-constant-face nil t))
    ;; This must come after the one for keywords and targets.
    '(":" ("^[ \t]*\\(\\sw+\\)[ \t]*:\\($\\|[^:]\\)"
	   (beginning-of-line) (end-of-line)
	   (1 font-lock-constant-face)))
    ;;
    ;; Fontify other builtin keywords.
    (concat "\\<" c++-keywords "\\>")
    ;;
    ;; Eric Hopper <hopper@omnifarious.mn.org> says `true' and `false' are new.
    '("\\<\\(false\\|true\\)\\>" . font-lock-constant-face)
    )))

 (setq c++-font-lock-keywords-3
  (append c++-font-lock-keywords-2
   ;;
   ;; More complicated regexps for more complete highlighting for types.
   (list
    ;;
    ;; Fontify all storage classes and type specifiers, plus their items.
    `(eval .
      (list (concat "\\<\\(" (,@ c++-type-types) "\\)\\>" (,@ c++-type-suffix)
		    "\\([ \t*&]+" (,@ c++-type-spec) "\\)*")
	    ;; Fontify each declaration item.
	    (list 'font-lock-match-c++-style-declaration-item-and-skip-to-next
		  ;; Start with point after all type specifiers.
		  (list 'goto-char (list 'or (list 'match-beginning
						   (+ (,@ c++-type-depth) 2))
					 '(match-end 1)))
		  ;; Finish with point after first type specifier.
		  '(goto-char (match-end 1))
		  ;; Fontify as a variable or function name.
		  '(1 (cond ((or (match-beginning 2) (match-beginning 4))
			     font-lock-type-face)
			    ((match-beginning 6) font-lock-function-name-face)
			    (t font-lock-variable-name-face)))
		  '(3 font-lock-function-name-face nil t)
		  '(5 (if (match-beginning 6)
			  font-lock-function-name-face
			font-lock-variable-name-face) nil t))))
    ;;
    ;; Fontify structures, or typedef names, plus their items.
    '("\\(}\\)[ \t*]*\\sw"
      (font-lock-match-c++-style-declaration-item-and-skip-to-next
       (goto-char (match-end 1)) nil
       (1 (if (match-beginning 6)
	      font-lock-function-name-face
	    font-lock-variable-name-face))))
    ;;
    ;; Fontify anything at beginning of line as a declaration or definition.
    (list (concat "^\\(" c++-type-spec "[ \t*&]*\\)+")
	  '(font-lock-match-c++-style-declaration-item-and-skip-to-next
	    (goto-char (match-beginning 1))
	    (goto-char (match-end 1))
	    (1 (cond ((or (match-beginning 2) (match-beginning 4))
		      font-lock-type-face)
		     ((match-beginning 6) font-lock-function-name-face)
		     (t font-lock-variable-name-face)))
	    (3 font-lock-function-name-face nil t)
	    (5 (if (match-beginning 6)
		   font-lock-function-name-face
		 font-lock-variable-name-face) nil t)))
    )))
 )

(defvar c++-font-lock-keywords c++-font-lock-keywords-1
  "Default expressions to highlight in C++ mode.
See also `c++-font-lock-extra-types'.")

;;; Objective-C.

(defconst objc-font-lock-keywords-1 nil
  "Subdued level highlighting for Objective-C mode.")

(defconst objc-font-lock-keywords-2 nil
  "Medium level highlighting for Objective-C mode.
See also `objc-font-lock-extra-types'.")

(defconst objc-font-lock-keywords-3 nil
  "Gaudy level highlighting for Objective-C mode.
See also `objc-font-lock-extra-types'.")

;; Regexps written with help from Stephen Peters <speters@us.oracle.com> and
;; Jacques Duthen Prestataire <duthen@cegelec-red.fr>.
(let* ((objc-keywords
	(eval-when-compile
	  (regexp-opt '("break" "continue" "do" "else" "for" "if" "return"
			"switch" "while" "sizeof" "self" "super") t)))
       (objc-type-types
	`(mapconcat 'identity
	  (cons
	   (,@ (eval-when-compile
		 (regexp-opt
		  '("auto" "extern" "register" "static" "typedef" "struct"
		    "union" "enum" "signed" "unsigned" "short" "long"
		    "int" "char" "float" "double" "void" "volatile" "const"
		    "id" "oneway" "in" "out" "inout" "bycopy" "byref"))))
	   objc-font-lock-extra-types)
	  "\\|"))
       (objc-type-depth `(regexp-opt-depth (,@ objc-type-types)))
       )
 (setq objc-font-lock-keywords-1
  (append
   ;;
   ;; The list `c-font-lock-keywords-1' less that for function names.
   (cdr c-font-lock-keywords-1)
   (list
    ;;
    ;; Fontify compiler directives.
    '("@\\(\\sw+\\)\\>"
      (1 font-lock-keyword-face)
      ("\\=[ \t:<(,]*\\(\\sw+\\)" nil nil
       (1 font-lock-function-name-face)))
    ;;
    ;; Fontify method names and arguments.  Oh Lordy!
    ;; First, on the same line as the function declaration.
    '("^[+-][ \t]*\\(PRIVATE\\)?[ \t]*\\((\\([^)\n]+\\))\\)?[ \t]*\\(\\sw+\\)"
      (1 font-lock-type-face nil t)
      (3 font-lock-type-face nil t)
      (4 font-lock-function-name-face)
      ("\\=[ \t]*\\(\\sw+\\)?:[ \t]*\\((\\([^)\n]+\\))\\)?[ \t]*\\(\\sw+\\)"
       nil nil
       (1 font-lock-function-name-face nil t)
       (3 font-lock-type-face nil t)
       (4 font-lock-variable-name-face)))
    ;; Second, on lines following the function declaration.
    '(":" ("^[ \t]*\\(\\sw+\\)?:[ \t]*\\((\\([^)\n]+\\))\\)?[ \t]*\\(\\sw+\\)"
	   (beginning-of-line) (end-of-line)
	   (1 font-lock-function-name-face nil t)
	   (3 font-lock-type-face nil t)
	   (4 font-lock-variable-name-face)))
    )))

 (setq objc-font-lock-keywords-2
  (append objc-font-lock-keywords-1
   (list
    ;;
    ;; Simple regexps for speed.
    ;;
    ;; Fontify all type specifiers.
    `(eval .
      (cons (concat "\\<\\(" (,@ objc-type-types) "\\)\\>")
	    'font-lock-type-face))
    ;;
    ;; Fontify all builtin keywords (except case, default and goto; see below).
    (concat "\\<" objc-keywords "\\>")
    ;;
    ;; Fontify case/goto keywords and targets, and case default/goto tags.
    '("\\<\\(case\\|goto\\)\\>[ \t]*\\(-?\\sw+\\)?"
      (1 font-lock-keyword-face) (2 font-lock-constant-face nil t))
    ;; Fontify tags iff sole statement on line, otherwise we detect selectors.
    ;; This must come after the one for keywords and targets.
    '(":" ("^[ \t]*\\(\\sw+\\)[ \t]*:[ \t]*$"
	   (beginning-of-line) (end-of-line)
	   (1 font-lock-constant-face)))
    ;;
    ;; Fontify null object pointers.
    '("\\<[Nn]il\\>" . font-lock-constant-face)
    )))

 (setq objc-font-lock-keywords-3
  (append objc-font-lock-keywords-2
   ;;
   ;; More complicated regexps for more complete highlighting for types.
   ;; We still have to fontify type specifiers individually, as C is so hairy.
   (list
    ;;
    ;; Fontify all storage classes and type specifiers, plus their items.
    `(eval .
      (list (concat "\\<\\(" (,@ objc-type-types) "\\)\\>"
		    "\\([ \t*&]+\\sw+\\>\\)*")
	    ;; Fontify each declaration item.
	    (list 'font-lock-match-c-style-declaration-item-and-skip-to-next
		  ;; Start with point after all type specifiers.
		  (list 'goto-char (list 'or (list 'match-beginning
						   (+ (,@ objc-type-depth) 2))
					 '(match-end 1)))
		  ;; Finish with point after first type specifier.
		  '(goto-char (match-end 1))
		  ;; Fontify as a variable or function name.
		  '(1 (if (match-beginning 2)
			  font-lock-function-name-face
			font-lock-variable-name-face)))))
    ;;
    ;; Fontify structures, or typedef names, plus their items.
    '("\\(}\\)[ \t*]*\\sw"
      (font-lock-match-c-style-declaration-item-and-skip-to-next
       (goto-char (match-end 1)) nil
       (1 (if (match-beginning 2)
	      font-lock-function-name-face
	    font-lock-variable-name-face))))
    ;;
    ;; Fontify anything at beginning of line as a declaration or definition.
    '("^\\(\\sw+\\)\\>\\([ \t*]+\\sw+\\>\\)*"
      (1 font-lock-type-face)
      (font-lock-match-c-style-declaration-item-and-skip-to-next
       (goto-char (or (match-beginning 2) (match-end 1))) nil
       (1 (if (match-beginning 2)
	      font-lock-function-name-face
	    font-lock-variable-name-face))))
    )))
 )

(defvar objc-font-lock-keywords objc-font-lock-keywords-1
  "Default expressions to highlight in Objective-C mode.
See also `objc-font-lock-extra-types'.")

;;; Java.

(defconst java-font-lock-keywords-1 nil
  "Subdued level highlighting for Java mode.")

(defconst java-font-lock-keywords-2 nil
  "Medium level highlighting for Java mode.
See also `java-font-lock-extra-types'.")

(defconst java-font-lock-keywords-3 nil
  "Gaudy level highlighting for Java mode.
See also `java-font-lock-extra-types'.")

;; Regexps written with help from Fred White <fwhite@bbn.com> and
;; Anders Lindgren <andersl@csd.uu.se>.
(let* ((java-keywords
	(eval-when-compile
	  (regexp-opt
	   '("catch" "do" "else" "super" "this" "finally" "for" "if"
	     ;; Anders Lindgren <andersl@csd.uu.se> says these have gone.
	     ;; "cast" "byvalue" "future" "generic" "operator" "var"
	     ;; "inner" "outer" "rest"
	     "interface" "return" "switch" "throw" "try" "while") t)))
       ;;
       ;; These are immediately followed by an object name.
       (java-minor-types
	(eval-when-compile
	  (regexp-opt '("boolean" "char" "byte" "short" "int" "long"
			"float" "double" "void"))))
       ;;
       ;; These are eventually followed by an object name.
       (java-major-types
	(eval-when-compile
	  (regexp-opt
	   '("abstract" "const" "final" "synchronized" "transient" "static"
	     ;; Anders Lindgren <andersl@csd.uu.se> says this has gone.
	     ;; "threadsafe"
	     "volatile" "public" "private" "protected" "native"))))
       ;;
       ;; Random types immediately followed by an object name.
       (java-other-types
	'(mapconcat 'identity (cons "\\sw+\\.\\sw+" java-font-lock-extra-types)
		    "\\|"))
       (java-other-depth `(regexp-opt-depth (,@ java-other-types)))
       )
 (setq java-font-lock-keywords-1
  (list
   ;;
   ;; Fontify class names.
   '("\\<\\(class\\)\\>[ \t]*\\(\\sw+\\)?"
     (1 font-lock-type-face) (2 font-lock-function-name-face nil t))
   ;;
   ;; Fontify package names in import directives.
   '("\\<\\(import\\|package\\)\\>[ \t]*\\(\\sw+\\)?"
     (1 font-lock-keyword-face) (2 font-lock-constant-face nil t))
   ))

 (setq java-font-lock-keywords-2
  (append java-font-lock-keywords-1
   (list
    ;;
    ;; Fontify all builtin type specifiers.
    (cons (concat "\\<\\(" java-minor-types "\\|" java-major-types "\\)\\>")
	  'font-lock-type-face)
    ;;
    ;; Fontify all builtin keywords (except below).
    (concat "\\<" java-keywords "\\>")
    ;;
    ;; Fontify keywords and targets, and case default/goto tags.
    (list "\\<\\(break\\|case\\|continue\\|goto\\)\\>[ \t]*\\(-?\\sw+\\)?"
	  '(1 font-lock-keyword-face) '(2 font-lock-constant-face nil t))
    ;; This must come after the one for keywords and targets.
    '(":" ("^[ \t]*\\(\\sw+\\)[ \t]*:"
	   (beginning-of-line) (end-of-line)
	   (1 font-lock-constant-face)))
    ;;
    ;; Fontify keywords and types; the first can be followed by a type list.
    (list (concat "\\<\\("
		  "implements\\|throws\\|"
		  "\\(extends\\|instanceof\\|new\\)"
		  "\\)\\>[ \t]*\\(\\sw+\\)?")
	  '(1 font-lock-keyword-face) '(3 font-lock-type-face nil t)
	  '("\\=[ \t]*,[ \t]*\\(\\sw+\\)"
	    (if (match-beginning 2) (goto-char (match-end 2))) nil
	    (1 font-lock-type-face)))
    ;;
    ;; Fontify all constants.
    '("\\<\\(false\\|null\\|true\\)\\>" . font-lock-constant-face)
    ;;
    ;; Javadoc tags within comments.
    '("@\\(author\\|exception\\|return\\|see\\|version\\)\\>"
      (1 font-lock-constant-face prepend))
    '("@\\(param\\)\\>[ \t]*\\(\\sw+\\)?"
      (1 font-lock-constant-face prepend)
      (2 font-lock-variable-name-face prepend t))
    )))

 (setq java-font-lock-keywords-3
  (append java-font-lock-keywords-2
   ;;
   ;; More complicated regexps for more complete highlighting for types.
   ;; We still have to fontify type specifiers individually, as Java is hairy.
   (list
    ;;
    ;; Fontify random types in casts.
    `(eval .
      (list (concat "(\\(" (,@ java-other-types) "\\))"
		    "[ \t]*\\(\\sw\\|[\"\(]\\)")
	    ;; Fontify the type name.
	    '(1 font-lock-type-face)))
    ;;
    ;; Fontify random types immediately followed by an item or items.
    `(eval .
      (list (concat "\\<\\(" (,@ java-other-types) "\\)\\>"
		    "\\([ \t]*\\[[ \t]*\\]\\)*"
		    "[ \t]*\\sw")
	    ;; Fontify the type name.
	    '(1 font-lock-type-face)))
    `(eval .
      (list (concat "\\<\\(" (,@ java-other-types) "\\)\\>"
		    "\\([ \t]*\\[[ \t]*\\]\\)*"
		    "\\([ \t]*\\sw\\)")
	    ;; Fontify each declaration item.
	    (list 'font-lock-match-c-style-declaration-item-and-skip-to-next
		  ;; Start and finish with point after the type specifier.
		  (list 'goto-char (list 'match-beginning
					 (+ (,@ java-other-depth) 3)))
		  (list 'goto-char (list 'match-beginning
					 (+ (,@ java-other-depth) 3)))
		  ;; Fontify as a variable or function name.
		  '(1 (if (match-beginning 2)
			  font-lock-function-name-face
			font-lock-variable-name-face)))))
    ;;
    ;; Fontify those that are immediately followed by an item or items.
    (list (concat "\\<\\(" java-minor-types "\\)\\>"
		  "\\([ \t]*\\[[ \t]*\\]\\)*")
	  ;; Fontify each declaration item.
	  '(font-lock-match-c-style-declaration-item-and-skip-to-next
	    ;; Start and finish with point after the type specifier.
	    nil (goto-char (match-end 0))
	    ;; Fontify as a variable or function name.
	    (1 (if (match-beginning 2)
		   font-lock-function-name-face
		 font-lock-variable-name-face))))
    ;;
    ;; Fontify those that are eventually followed by an item or items.
    (list (concat "\\<\\(" java-major-types "\\)\\>"
		  "\\([ \t]+\\sw+\\>"
		  "\\([ \t]*\\[[ \t]*\\]\\)*"
		  "\\)*")
	  ;; Fontify each declaration item.
	  '(font-lock-match-c-style-declaration-item-and-skip-to-next
	    ;; Start with point after all type specifiers.
	    (goto-char (or (match-beginning 5) (match-end 1)))
	    ;; Finish with point after first type specifier.
	    (goto-char (match-end 1))
	    ;; Fontify as a variable or function name.
	    (1 (if (match-beginning 2)
		   font-lock-function-name-face
		 font-lock-variable-name-face))))
    )))
 )

(defvar java-font-lock-keywords java-font-lock-keywords-1
  "Default expressions to highlight in Java mode.
See also `java-font-lock-extra-types'.")

;; Install ourselves:

(unless (assq 'font-lock-mode minor-mode-alist)
  (push '(font-lock-mode nil) minor-mode-alist))

;; Provide ourselves:

(provide 'font-lock)

;;; font-lock.el ends here
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for ProjectModifiedEvent.java.
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.