summaryrefslogtreecommitdiff
path: root/lisp/progmodes/vera-mode.el
blob: 4a046d953c8906bd58cae6fc55df0d75c903ee08 (plain)
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
;;; vera-mode.el --- major mode for editing Vera files.

;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
;;   2006, 2007, 2008 Free Software Foundation, Inc.

;; Author:      Reto Zimmermann <reto@gnu.org>
;; Maintainer:  Reto Zimmermann <reto@gnu.org>
;; Version:     2.28
;; Keywords:    languages vera
;; WWW:         http://www.iis.ee.ethz.ch/~zimmi/emacs/vera-mode.html

;; Yoni Rabkin <yoni@rabkins.net> contacted the maintainer of this
;; file on 18/3/2008, and the maintainer agreed that when a bug is
;; filed in the Emacs bug reporting system against this file, a copy
;; of the bug report be sent to the maintainer's email address.

(defconst vera-version "2.18"
  "Vera Mode version number.")

(defconst vera-time-stamp "2007-06-21"
  "Vera Mode time stamp for last update.")

;; This file is part of GNU Emacs.

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

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

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

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Commentary:
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;; This package provides a simple Emacs major mode for editing Vera code.
;; It includes the following features:

;;   - Syntax highlighting
;;   - Indentation
;;   - Word/keyword completion
;;   - Block commenting
;;   - Works under GNU Emacs and XEmacs

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Documentation

;; See comment string of function `vera-mode' or type `C-h m' in Emacs.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Installation

;; Prerequisites:  GNU Emacs 20.X/21.X, XEmacs 20.X/21.X

;; Put `vera-mode.el' into the `site-lisp' directory of your Emacs installation
;; or into an arbitrary directory that is added to the load path by the
;; following line in your Emacs start-up file (`.emacs'):

;;   (setq load-path (cons (expand-file-name "<directory-name>") load-path))

;; If you already have the compiled `vera-mode.elc' file, put it in the same
;; directory.  Otherwise, byte-compile the source file:
;;   Emacs:  M-x byte-compile-file  ->  vera-mode.el
;;   Unix:   emacs -batch -q -no-site-file -f batch-byte-compile vera-mode.el

;; Add the following lines to the `site-start.el' file in the `site-lisp'
;; directory of your Emacs installation or to your Emacs start-up file
;; (`.emacs'):

;;   (autoload 'vera-mode "vera-mode" "Vera Mode" t)
;;   (setq auto-mode-alist (cons '("\\.vr[hi]?\\'" . vera-mode) auto-mode-alist))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;;; Code:

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Variables
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(defgroup vera nil
  "Customizations for Vera Mode."
  :prefix "vera-"
  :version "22.2"
  :group 'languages)

(defcustom vera-basic-offset 2
  "*Amount of basic offset used for indentation."
  :type 'integer
  :group 'vera)

(defcustom vera-underscore-is-part-of-word nil
  "*Non-nil means consider the underscore character `_' as part of word.
An identifier containing underscores is then treated as a single word in
select and move operations.  All parts of an identifier separated by underscore
are treated as single words otherwise."
  :type 'boolean
  :group 'vera)

(defcustom vera-intelligent-tab t
  "*Non-nil means `TAB' does indentation, word completion and tab insertion.
That is, if preceding character is part of a word then complete word,
else if not at beginning of line then insert tab,
else if last command was a `TAB' or `RET' then dedent one step,
else indent current line.
If nil, TAB always indents current line."
  :type 'boolean
  :group 'vera)


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Mode definitions
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Key bindings

(defvar vera-mode-map
  (let ((map (make-sparse-keymap)))
    ;; Backspace/delete key bindings.
    (define-key map [backspace] 'backward-delete-char-untabify)
    (unless (boundp 'delete-key-deletes-forward) ; XEmacs variable
      (define-key map [delete]       'delete-char)
      (define-key map [(meta delete)] 'kill-word))
    ;; Standard key bindings.
    (define-key map "\M-e"     'vera-forward-statement)
    (define-key map "\M-a"     'vera-backward-statement)
    (define-key map "\M-\C-e"  'vera-forward-same-indent)
    (define-key map "\M-\C-a"  'vera-backward-same-indent)
    ;; Mode specific key bindings.
    (define-key map "\C-c\t"   'indent-according-to-mode)
    (define-key map "\M-\C-\\" 'vera-indent-region)
    (define-key map "\C-c\C-c" 'vera-comment-uncomment-region)
    (define-key map "\C-c\C-f" 'vera-fontify-buffer)
    (define-key map "\C-c\C-v" 'vera-version)
    (define-key map "\M-\t"    'tab-to-tab-stop)
    ;; Electric key bindings.
    (define-key map "\t"       'vera-electric-tab)
    (define-key map "\r"       'vera-electric-return)
    (define-key map " "        'vera-electric-space)
    (define-key map "{"        'vera-electric-opening-brace)
    (define-key map "}"        'vera-electric-closing-brace)
    (define-key map "#"        'vera-electric-pound)
    (define-key map "*"        'vera-electric-star)
    (define-key map "/"        'vera-electric-slash)
    map)
  "Keymap for Vera Mode.")

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Menu

(require 'easymenu)

(easy-menu-define vera-mode-menu vera-mode-map
  "Menu keymap for Vera Mode."
  '("Vera"
    ["(Un)Comment Out Region"	vera-comment-uncomment-region (mark)]
    "--"
    ["Move Forward Statement"	vera-forward-statement t]
    ["Move Backward Statement"	vera-backward-statement t]
    ["Move Forward Same Indent" vera-forward-same-indent t]
    ["Move Backward Same Indent" vera-backward-same-indent t]
    "--"
    ["Indent Line"		indent-according-to-mode t]
    ["Indent Region"		vera-indent-region (mark)]
    ["Indent Buffer"		vera-indent-buffer t]
    "--"
    ["Fontify Buffer"		vera-fontify-buffer t]
    "--"
    ["Documentation"		describe-mode]
    ["Version"			vera-version t]
    ["Bug Report..."		vera-submit-bug-report t]
    "--"
    ("Options"
     ["Indentation Offset..." (customize-option 'vera-basic-offset) t]
     ["Underscore is Part of Word"
      (customize-set-variable 'vera-underscore-is-part-of-word
			      (not vera-underscore-is-part-of-word))
      :style toggle :selected vera-underscore-is-part-of-word]
     ["Use Intelligent Tab"
      (customize-set-variable 'vera-intelligent-tab
			      (not vera-intelligent-tab))
      :style toggle :selected vera-intelligent-tab]
     "--"
     ["Save Options" customize-save-customized t]
     "--"
     ["Customize..."		vera-customize t])))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Syntax table

(defvar vera-mode-syntax-table
  (let ((syntax-table (make-syntax-table)))
    ;; punctuation
    (modify-syntax-entry ?\# "."    syntax-table)
    (modify-syntax-entry ?\$ "."    syntax-table)
    (modify-syntax-entry ?\% "."    syntax-table)
    (modify-syntax-entry ?\& "."    syntax-table)
    (modify-syntax-entry ?\' "."    syntax-table)
    (modify-syntax-entry ?\* "."    syntax-table)
    (modify-syntax-entry ?\- "."    syntax-table)
    (modify-syntax-entry ?\+ "."    syntax-table)
    (modify-syntax-entry ?\. "."    syntax-table)
    (modify-syntax-entry ?\/ "."    syntax-table)
    (modify-syntax-entry ?\: "."    syntax-table)
    (modify-syntax-entry ?\; "."    syntax-table)
    (modify-syntax-entry ?\< "."    syntax-table)
    (modify-syntax-entry ?\= "."    syntax-table)
    (modify-syntax-entry ?\> "."    syntax-table)
    (modify-syntax-entry ?\\ "."    syntax-table)
    (modify-syntax-entry ?\| "."    syntax-table)
    ;; string
    (modify-syntax-entry ?\" "\""   syntax-table)
    ;; underscore
    (when vera-underscore-is-part-of-word
      (modify-syntax-entry ?\_ "w"    syntax-table))
    ;; escape
    (modify-syntax-entry ?\\ "\\"   syntax-table)
    ;; parentheses to match
    (modify-syntax-entry ?\( "()"   syntax-table)
    (modify-syntax-entry ?\) ")("   syntax-table)
    (modify-syntax-entry ?\[ "(]"   syntax-table)
    (modify-syntax-entry ?\] ")["   syntax-table)
    (modify-syntax-entry ?\{ "(}"   syntax-table)
    (modify-syntax-entry ?\} "){"   syntax-table)
    ;; comment
    (if (featurep 'xemacs)
	(modify-syntax-entry ?\/ ". 1456" syntax-table) ; XEmacs
      (modify-syntax-entry ?\/ ". 124b" syntax-table)) ; Emacs
    (modify-syntax-entry ?\* ". 23" syntax-table)
    ;; newline and CR
    (modify-syntax-entry ?\n "> b"    syntax-table)
    (modify-syntax-entry ?\^M "> b"   syntax-table)
    syntax-table)
  "Syntax table used in `vera-mode' buffers.")

(defvar vera-mode-ext-syntax-table
  (let ((syntax-table (copy-syntax-table vera-mode-syntax-table)))
    ;; extended syntax table including '_' (for simpler search regexps)
    (modify-syntax-entry ?_ "w" syntax-table)
    syntax-table)
  "Syntax table extended by `_' used in `vera-mode' buffers.")

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Mode definition

;;;###autoload (add-to-list 'auto-mode-alist '("\\.vr[hi]?\\'" . vera-mode))

;;;###autoload
(defun vera-mode ()
  "Major mode for editing Vera code.

Usage:
------

  INDENTATION:  Typing `TAB' at the beginning of a line indents the line.
    The amount of indentation is specified by option `vera-basic-offset'.
    Indentation can be done for an entire region \(`M-C-\\') or buffer (menu).
    `TAB' always indents the line if option `vera-intelligent-tab' is nil.

  WORD/COMMAND COMPLETION:  Typing `TAB' after a (not completed) word looks
    for a word in the buffer or a Vera keyword that starts alike, inserts it
    and adjusts case.  Re-typing `TAB' toggles through alternative word
    completions.

    Typing `TAB' after a non-word character inserts a tabulator stop (if not
    at the beginning of a line).  `M-TAB' always inserts a tabulator stop.

  COMMENTS:  `C-c C-c' comments out a region if not commented out, and
    uncomments a region if already commented out.

  HIGHLIGHTING (fontification):  Vera keywords, predefined types and
    constants, function names, declaration names, directives, as well as
    comments and strings are highlighted using different colors.

  VERA VERSION:  OpenVera 1.4 and Vera version 6.2.8.


Maintenance:
------------

To submit a bug report, use the corresponding menu entry within Vera Mode.
Add a description of the problem and include a reproducible test case.

Feel free to send questions and enhancement requests to <reto@gnu.org>.

Official distribution is at
<http://www.iis.ee.ethz.ch/~zimmi/emacs/vera-mode.html>.


                                                  The Vera Mode Maintainer
                                               Reto Zimmermann <reto@gnu.org>

Key bindings:
-------------

\\{vera-mode-map}"
  (interactive)
  (kill-all-local-variables)
  (setq major-mode 'vera-mode)
  (setq mode-name "Vera")
  ;; set maps and tables
  (use-local-map vera-mode-map)
  (set-syntax-table vera-mode-syntax-table)
  ;; set local variables
  (require 'cc-cmds)
  (set (make-local-variable 'comment-start) "//")
  (set (make-local-variable 'comment-end) "")
  (set (make-local-variable 'comment-column) 40)
  (set (make-local-variable 'comment-start-skip) "/\\*+ *\\|//+ *")
  (set (make-local-variable 'comment-end-skip) " *\\*+/\\| *\n")
  (set (make-local-variable 'comment-indent-function) 'c-comment-indent)
  (set (make-local-variable 'paragraph-start) "^$")
  (set (make-local-variable 'paragraph-separate) paragraph-start)
  (set (make-local-variable 'require-final-newline) t)
  (set (make-local-variable 'indent-tabs-mode) nil)
  (set (make-local-variable 'indent-line-function) 'vera-indent-line)
  (set (make-local-variable 'parse-sexp-ignore-comments) t)
  ;; initialize font locking
  (set (make-local-variable 'font-lock-defaults)
       '(vera-font-lock-keywords nil nil ((?\_ . "w"))))
  ;; add menu (XEmacs)
  (easy-menu-add vera-mode-menu)
  ;; miscellaneous
  (message "Vera Mode %s.  Type C-c C-h for documentation." vera-version)
  ;; run hooks
  (run-hooks 'vera-mode-hook))


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Vera definitions
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Keywords

(defconst vera-keywords
  '(
    "after" "all" "any" "around" "assoc_index" "assoc_size" "async"
    "bad_state" "bad_trans" "before" "begin" "big_endian" "bind"
    "bin_activation" "bit_normal" "bit_reverse" "break" "breakpoint"
    "case" "casex" "casez" "class" "constraint" "continue"
    "coverage" "coverage_block" "coverage_def" "coverage_depth"
    "coverage_goal" "coverage_group" "coverage_option" "coverage_val"
    "cross_num_print_missing" "cross_auto_bin_max" "cov_comment"
    "default" "depth" "dist" "do"
    "else" "end" "enum" "exhaustive" "export" "extends" "extern"
    "for" "foreach" "fork" "function"
    "hdl_task" "hdl_node" "hide"
    "if" "illegal_self_transition" "illegal_state" "illegal_transition"
    "in" "interface" "invisible"
    "join"
    "little_endian" "local"
    "m_bad_state" "m_bad_trans" "m_state" "m_trans"
    "negedge" "new" "newcov" "non_rand" "none" "not" "null"
    "or" "ordered"
    "packed" "port" "posedge" "proceed" "prod" "prodget" "prodset"
    "program" "protected" "public"
    "rand" "randc" "randcase" "randseq" "repeat" "return" "rules"
    "sample" "sample_event" "shadow" "soft" "state" "static" "super"
    "task" "terminate" "this" "trans" "typedef"
    "unpacked"
    "var" "vca" "vector" "verilog_node" "verilog_task"
    "vhdl_node" "vhdl_task" "virtual" "virtuals" "visible" "void"
    "while" "wildcard" "with"
    )
  "List of Vera keywords.")

(defconst vera-types
  '(
    "integer" "bit" "reg" "string" "bind_var" "event"
    "inout" "input" "output"
    "ASYNC" "CLOCK"
    "NDRIVE" "NHOLD" "NRX" "NRZ" "NR0" "NR1" "NSAMPLE"
    "PDRIVE" "PHOLD" "PRX" "PRZ" "PR0" "PR1" "PSAMPLE"
    )
  "List of Vera predefined types.")

(defconst vera-q-values
  '(
    "gnr" "grx" "grz" "gr0" "gr1"
    "nr" "rx" "rz" "r0" "r1"
    "snr" "srx" "srz" "sr0" "sr1"
    )
  "List of Vera predefined VCA q_values.")

(defconst vera-functions
  '(
    ;; system functions and tasks
    "alloc"
    "call_func" "call_task" "cast_assign" "close_conn" "cm_coverage"
    "cm_get_coverage" "cm_get_limit"
    "coverage_backup_database_file" "coverage_save_database"
    "delay"
    "error" "error_mode" "error_wait" "exit"
    "fclose" "feof" "ferror" "fflush" "flag" "fopen" "fprintf" "freadb"
    "freadb" "freadh" "freadstr"
    "get_bind" "get_bind_id" "get_conn_err" "get_cycle" "get_env"
    "get_memsize" "get_plus_arg" "get_systime" "get_time" "get_time_unit"
    "getstate"
    "initstate"
    "lock_file"
    "mailbox_get" "mailbox_put" "mailbox_receive" "mailbox_send"
    "make_client" "make_server"
    "os_command"
    "printf" "psprintf"
    "query" "query_str" "query_x"
    "rand48" "random" "region_enter" "region_exit" "rewind"
    "semaphore_get" "semaphore_put" "setstate" "signal_connect" "simwave_plot"
    "srandom" "sprintf" "sscanf" "stop" "suspend_thread" "sync"
    "timeout" "trace" "trigger"
    "unit_delay" "unlock_file" "up_connections"
    "urand48" "urandom" "urandom_range"
    "vera_bit_reverse" "vera_crc" "vera_pack" "vera_pack_big_endian"
    "vera_plot" "vera_report_profile" "vera_unpack" "vera_unpack_big_endian"
    "vsv_call_func" "vsv_call_task" "vsv_close_conn" "vsv_get_conn_err"
    "vsv_make_client" "vsv_make_server" "vsv_up_connections"
    "vsv_wait_for_done" "vsv_wait_for_input"
    "wait_child" "wait_var"
    ;; class methods
    "Configure" "DisableTrigger" "DoAction" "EnableCount" "EnableTrigger"
    "Event" "GetAssert" "GetCount" "GetFirstAssert" "GetName" "GetNextAssert"
    "Wait"
    "atobin" "atohex" "atoi" "atooct"
    "backref" "bittostr" "capacity" "compare" "constraint_mode"
    "delete"
    "empty"
    "find" "find_index" "first" "first_index"
    "get_at_least" "get_auto_bin" "get_cov_weight" "get_coverage_goal"
    "get_cross_bin_max" "get_status" "get_status_msg" "getc"
    "hash"
    "icompare" "insert" "inst_get_at_least" "inst_get_auto_bin_max"
    "inst_get_collect" "inst_get_cov_weight" "inst_get_coverage_goal"
    "inst_getcross_bin_max" "inst_query" "inst_set_at_least"
    "inst_set_auto_bin_max" "inst_set_bin_activiation" "inst_set_collect"
    "inst_set_cov_weight" "inst_set_coverage_goal" "inst_set_cross_bin_max"
    "itoa"
    "last" "last_index" "len" "load"
    "match" "max" "max_index" "min" "min_index"
    "object_compare" "object_copy" "object_print"
    "pack" "pick_index" "pop_back" "pop_front" "post_pack" "post_randomize"
    "post_unpack" "postmatch" "pre_pack" "pre_randomize" "prematch" "push_back"
    "push_front" "putc"
    "query" "query_str"
    "rand_mode" "randomize" "reserve" "reverse" "rsort"
    "search" "set_at_least" "set_auto_bin_max" "set_bin_activiation"
    "set_cov_weight" "set_coverage_goal" "set_cross_bin_max" "set_name" "size"
    "sort" "substr" "sum"
    "thismatch" "tolower" "toupper"
    "unique_index" "unpack"
    ;; empty methods
    "new" "object_compare"
    "post_boundary" "post_pack" "post_randomize" "post_unpack" "pre-randomize"
    "pre_boundary" "pre_pack" "pre_unpack"
    )
  "List of Vera predefined system functions, tasks and class methods.")

(defconst vera-constants
  '(
    "ALL" "ANY"
    "BAD_STATE" "BAD_TRANS"
    "CALL" "CHECK" "CHGEDGE" "CLEAR" "COPY_NO_WAIT" "COPY_WAIT"
    "CROSS" "CROSS_TRANS"
    "DEBUG" "DELETE"
    "EC_ARRAYX" "EC_CODE_END" "EC_CONFLICT" "EC_EVNTIMOUT" "EC_EXPECT"
    "EC_FULLEXPECT" "EC_MBXTMOUT" "EC_NEXPECT" "EC_RETURN" "EC_RGNTMOUT"
    "EC_SCONFLICT" "EC_SEMTMOUT" "EC_SEXPECT" "EC_SFULLEXPECT" "EC_SNEXTPECT"
    "EC_USERSET" "EQ" "EVENT"
    "FAIL" "FIRST" "FORK"
    "GE" "GOAL" "GT" "HAND_SHAKE" "HI" "HIGH" "HNUM"
    "LE" "LIC_EXIT" "LIC_PRERR" "LIC_PRWARN" "LIC_WAIT" "LO" "LOAD" "LOW" "LT"
    "MAILBOX" "MAX_COM"
    "NAME" "NE" "NEGEDGE" "NEXT" "NO_OVERLAP" "NO_OVERLAP_STATE"
    "NO_OVERLAP_TRANS" "NO_VARS" "NO_WAIT" "NUM" "NUM_BIN" "NUM_DET"
    "OFF" "OK" "OK_LAST" "ON" "ONE_BLAST" "ONE_SHOT" "ORDER"
    "PAST_IT" "PERCENT" "POSEDGE" "PROGRAM"
    "RAWIN" "REGION" "REPORT"
    "SAMPLE" "SAVE" "SEMAPHORE" "SET" "SILENT" "STATE" "STR"
    "STR_ERR_OUT_OF_RANGE" "STR_ERR_REGEXP_SYNTAX" "SUM"
    "TRANS"
    "VERBOSE"
    "WAIT"
    "stderr" "stdin" "stdout"
    )
  "List of Vera predefined constants.")

(defconst vera-rvm-types
  '(
    "VeraListIterator_VeraListIterator_rvm_log"
    "VeraListIterator_rvm_data" "VeraListIterator_rvm_log"
    "VeraListNodeVeraListIterator_rvm_log" "VeraListNodervm_data"
    "VeraListNodervm_log" "VeraList_VeraListIterator_rvm_log"
    "VeraList_rvm_data" "VeraList_rvm_log"
    "rvm_broadcast" "rvm_channel_class" "rvm_data" "rvm_data" "rvm_env"
    "rvm_log" "rvm_log_modifier" "rvm_log_msg" "rvm_log_msg" "rvm_log_msg_info"
    "rvm_log_watchpoint" "rvm_notify" "rvm_notify_event"
    "rvm_notify_event_config" "rvm_scheduler" "rvm_scheduler_election"
    "rvm_watchdog" "rvm_watchdog_port" "rvm_xactor" "rvm_xactor_callbacks"
   )
  "List of Vera-RVM keywords.")

(defconst vera-rvm-functions
  '(
    "extern_rvm_atomic_gen" "extern_rvm_channel" "extern_rvm_scenario_gen"
    "rvm_OO_callback" "rvm_atomic_gen" "rvm_atomic_gen_callbacks_decl"
    "rvm_atomic_gen_decl" "rvm_atomic_scenario_decl" "rvm_channel"
    "rvm_channel_" "rvm_channel_decl" "rvm_command" "rvm_cycle" "rvm_debug"
    "rvm_error" "rvm_fatal" "rvm_note" "rvm_protocol" "rvm_report"
    "rvm_scenario_decl" "rvm_scenario_election_decl" "rvm_scenario_gen"
    "rvm_scenario_gen_callbacks_decl" "rvm_scenario_gen_decl"
    "rvm_trace" "rvm_transaction" "rvm_user" "rvm_verbose" "rvm_warning"
   )
  "List of Vera-RVM functions.")

(defconst vera-rvm-constants
  '(
   "RVM_NUMERIC_VERSION_MACROS" "RVM_VERSION" "RVM_MINOR" "RVM_PATCH"
   "rvm_channel__SOURCE" "rvm_channel__SINK" "rvm_channel__NO_ACTIVE"
   "rvm_channel__ACT_PENDING" "rvm_channel__ACT_STARTED"
   "rvm_channel__ACT_COMPLETED" "rvm_channel__FULL" "rvm_channel__EMPTY"
   "rvm_channel__PUT" "rvm_channel__GOT" "rvm_channel__PEEKED"
   "rvm_channel__ACTIVATED" "rvm_channel__STARTED" "rvm_channel__COMPLETED"
   "rvm_channel__REMOVED" "rvm_channel__LOCKED" "rvm_channel__UNLOCKED"
   "rvm_data__EXECUTE" "rvm_data__STARTED" "rvm_data__ENDED"
   "rvm_env__CFG_GENED" "rvm_env__BUILT" "rvm_env__DUT_CFGED"
   "rvm_env__STARTED" "rvm_env__RESTARTED" "rvm_env__ENDED" "rvm_env__STOPPED"
   "rvm_env__CLEANED" "rvm_env__DONE" "rvm_log__DEFAULT" "rvm_log__UNCHANGED"
   "rvm_log__FAILURE_TYP" "rvm_log__NOTE_TYP" "rvm_log__DEBUG_TYP"
   "rvm_log__REPORT_TYP" "rvm_log__NOTIFY_TYP" "rvm_log__TIMING_TYP"
   "rvm_log__XHANDLING_TYP" "rvm_log__PROTOCOL_TYP" "rvm_log__TRANSACTION_TYP"
   "rvm_log__COMMAND_TYP" "rvm_log__CYCLE_TYP" "rvm_log__USER_TYP_0"
   "rvm_log__USER_TYP_1" "rvm_log__USER_TYP_2" "rvm_log__USER_TYP_3"
   "rvm_log__DEFAULT_TYP" "rvm_log__ALL_TYPES" "rvm_log__FATAL_SEV"
   "rvm_log__ERROR_SEV" "rvm_log__WARNING_SEV" "rvm_log__NORMAL_SEV"
   "rvm_log__TRACE_SEV" "rvm_log__DEBUG_SEV" "rvm_log__VERBOSE_SEV"
   "rvm_log__HIDDEN_SEV" "rvm_log__IGNORE_SEV" "rvm_log__DEFAULT_SEV"
   "rvm_log__ALL_SEVERITIES" "rvm_log__CONTINUE" "rvm_log__COUNT_AS_ERROR"
   "rvm_log__DEBUGGER" "rvm_log__DUMP" "rvm_log__STOP" "rvm_log__ABORT"
   "rvm_notify__ONE_SHOT_TRIGGER" "rvm_notify__ONE_BLAST_TRIGGER"
   "rvm_notify__HAND_SHAKE_TRIGGER" "rvm_notify__ON_OFF_TRIGGER"
   "rvm_xactor__XACTOR_IDLE" "rvm_xactor__XACTOR_BUSY"
   "rvm_xactor__XACTOR_STARTED" "rvm_xactor__XACTOR_STOPPED"
   "rvm_xactor__XACTOR_RESET" "rvm_xactor__XACTOR_SOFT_RST"
   "rvm_xactor__XACTOR_FIRM_RST" "rvm_xactor__XACTOR_HARD_RST"
   "rvm_xactor__XACTOR_PROTOCOL_RST" "rvm_broadcast__AFAP"
   "rvm_broadcast__ALAP" "rvm_watchdog__TIMEOUT"
   "rvm_env__DUT_RESET" "rvm_log__INTERNAL_TYP"
   "RVM_SCHEDULER_IS_XACTOR" "RVM_BROADCAST_IS_XACTOR"
  )
  "List of Vera-RVM predefined constants.")

;; `regexp-opt' undefined (`xemacs-devel' not installed)
(unless (fboundp 'regexp-opt)
  (defun regexp-opt (strings &optional paren)
    (let ((open (if paren "\\(" "")) (close (if paren "\\)" "")))
      (concat open (mapconcat 'regexp-quote strings "\\|") close))))

(defconst vera-keywords-regexp
  (concat "\\<\\(" (regexp-opt vera-keywords) "\\)\\>")
  "Regexp for Vera keywords.")

(defconst vera-types-regexp
  (concat "\\<\\(" (regexp-opt vera-types) "\\)\\>")
  "Regexp for Vera predefined types.")

(defconst vera-q-values-regexp
  (concat "\\<\\(" (regexp-opt vera-q-values) "\\)\\>")
  "Regexp for Vera predefined VCA q_values.")

(defconst vera-functions-regexp
  (concat "\\<\\(" (regexp-opt vera-functions) "\\)\\>")
  "Regexp for Vera predefined system functions, tasks and class methods.")

(defconst vera-constants-regexp
  (concat "\\<\\(" (regexp-opt vera-constants) "\\)\\>")
  "Regexp for Vera predefined constants.")

(defconst vera-rvm-types-regexp
  (concat "\\<\\(" (regexp-opt vera-rvm-types) "\\)\\>")
  "Regexp for Vera-RVM keywords.")

(defconst vera-rvm-functions-regexp
  (concat "\\<\\(" (regexp-opt vera-rvm-functions) "\\)\\>")
  "Regexp for Vera-RVM predefined system functions, tasks and class methods.")

(defconst vera-rvm-constants-regexp
  (concat "\\<\\(" (regexp-opt vera-rvm-constants) "\\)\\>")
  "Regexp for Vera-RVM predefined constants.")


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Font locking
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;; XEmacs compatibility
(when (featurep 'xemacs)
  (require 'font-lock)
  (copy-face 'font-lock-reference-face 'font-lock-constant-face)
  (copy-face 'font-lock-preprocessor-face 'font-lock-builtin-face))

(defun vera-font-lock-match-item (limit)
  "Match, and move over, any declaration item after point.
Adapted from `font-lock-match-c-style-declaration-item-and-skip-to-next'."
  (condition-case nil
      (save-restriction
	(narrow-to-region (point-min) limit)
	;; match item
	(when (looking-at "\\s-*\\(\\w+\\)")
	  (save-match-data
	    (goto-char (match-end 1))
	    ;; move to next item
	    (if (looking-at "\\(\\s-*\\(\\[[^]]*\\]\\s-*\\)?,\\)")
		(goto-char (match-end 1))
	      (end-of-line) t))))
    (error t)))

(defvar vera-font-lock-keywords
  (list
   ;; highlight keywords
   (list vera-keywords-regexp 1 'font-lock-keyword-face)
   ;; highlight types
   (list vera-types-regexp 1 'font-lock-type-face)
   ;; highlight RVM types
   (list vera-rvm-types-regexp 1 'font-lock-type-face)
   ;; highlight constants
   (list vera-constants-regexp 1 'font-lock-constant-face)
   ;; highlight RVM constants
   (list vera-rvm-constants-regexp 1 'font-lock-constant-face)
   ;; highlight q_values
   (list vera-q-values-regexp 1 'font-lock-constant-face)
   ;; highlight predefined functions, tasks and methods
   (list vera-functions-regexp 1 'vera-font-lock-function)
   ;; highlight predefined RVM functions
   (list vera-rvm-functions-regexp 1 'vera-font-lock-function)
   ;; highlight functions
   '("\\<\\(\\w+\\)\\s-*(" 1 font-lock-function-name-face)
   ;; highlight various declaration names
   '("^\\s-*\\(port\\|program\\|task\\)\\s-+\\(\\w+\\)\\>"
     2 font-lock-function-name-face)
   '("^\\s-*bind\\s-+\\(\\w+\\)\\s-+\\(\\w+\\)\\>"
     (1 font-lock-function-name-face) (2 font-lock-function-name-face))
   ;; highlight interface declaration names
   '("^\\s-*\\(class\\|interface\\)\\s-+\\(\\w+\\)\\>"
     2 vera-font-lock-interface)
   ;; highlight variable name definitions
   (list (concat "^\\s-*" vera-types-regexp "\\s-*\\(\\[[^]]+\\]\\s-+\\)?")
	 '(vera-font-lock-match-item nil nil (1 font-lock-variable-name-face)))
   (list (concat "^\\s-*" vera-rvm-types-regexp "\\s-*\\(\\[[^]]+\\]\\s-+\\)?")
	 '(vera-font-lock-match-item nil nil (1 font-lock-variable-name-face)))
   ;; highlight numbers
   '("\\([0-9]*'[bdoh][0-9a-fA-FxXzZ_]+\\)" 1 vera-font-lock-number)
   ;; highlight filenames in #include directives
   '("^#\\s-*include\\s-*\\(<[^>\"\n]*>?\\)"
     1 font-lock-string-face)
   ;; highlight directives and directive names
   '("^#\\s-*\\(\\w+\\)\\>[ \t!]*\\(\\w+\\)?"
     (1 font-lock-builtin-face) (2 font-lock-variable-name-face nil t))
   ;; highlight `@', `$' and `#'
   '("\\([@$#]\\)" 1 font-lock-keyword-face)
   ;; highlight @ and # definitions
   '("@\\s-*\\(\\w*\\)\\(\\s-*,\\s-*\\(\\w+\\)\\)?\\>[^.]"
     (1 vera-font-lock-number) (3 vera-font-lock-number nil t))
   ;; highlight interface signal name
   '("\\(\\w+\\)\\.\\w+" 1 vera-font-lock-interface)
   )
  "Regular expressions to highlight in Vera Mode.")

(defvar vera-font-lock-number 'vera-font-lock-number
  "Face name to use for @ definitions.")

(defvar vera-font-lock-function 'vera-font-lock-function
  "Face name to use for predefined functions and tasks.")

(defvar vera-font-lock-interface 'vera-font-lock-interface
  "Face name to use for interface names.")

(defface vera-font-lock-number
  '((((class color) (background light)) (:foreground "Gold4"))
    (((class color) (background dark)) (:foreground "BurlyWood1"))
    (t (:italic t :bold t)))
  "Font lock mode face used to highlight @ definitions."
  :group 'font-lock-highlighting-faces)

(defface vera-font-lock-function
  '((((class color) (background light)) (:foreground "DarkCyan"))
    (((class color) (background dark)) (:foreground "Orchid1"))
    (t (:italic t :bold t)))
  "Font lock mode face used to highlight predefined functions and tasks."
  :group 'font-lock-highlighting-faces)

(defface vera-font-lock-interface
  '((((class color) (background light)) (:foreground "Grey40"))
    (((class color) (background dark)) (:foreground "Grey80"))
    (t (:italic t :bold t)))
  "Font lock mode face used to highlight interface names."
  :group 'font-lock-highlighting-faces)

(defalias 'vera-fontify-buffer 'font-lock-fontify-buffer)

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Indentation
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(defvar vera-echo-syntactic-information-p nil
  "If non-nil, syntactic info is echoed when the line is indented.")

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; offset functions

(defconst vera-offsets-alist
  '((comment        . vera-lineup-C-comments)
    (comment-intro  . vera-lineup-comment)
    (string         . -1000)
    (directive      . -1000)
    (block-open     . 0)
    (block-intro    . +)
    (block-close    . 0)
    (arglist-intro  . +)
    (arglist-cont   . +)
    (arglist-cont-nonempty . 0)
    (arglist-close  . 0)
    (statement      . 0)
    (statement-cont . +)
    (substatement   . +)
    (else-clause    . 0))
  "Association list of syntactic element symbols and indentation offsets.
Adapted from `c-offsets-alist'.")

(defun vera-evaluate-offset (offset langelem symbol)
  "OFFSET can be a number, a function, a variable, a list, or one of
the symbols + or -."
  (cond
   ((eq offset '+)         (setq offset vera-basic-offset))
   ((eq offset '-)         (setq offset (- vera-basic-offset)))
   ((eq offset '++)        (setq offset (* 2 vera-basic-offset)))
   ((eq offset '--)        (setq offset (* 2 (- vera-basic-offset))))
   ((eq offset '*)         (setq offset (/ vera-basic-offset 2)))
   ((eq offset '/)         (setq offset (/ (- vera-basic-offset) 2)))
   ((functionp offset)     (setq offset (funcall offset langelem)))
   ((listp offset)
    (setq offset
	  (let (done)
	    (while (and (not done) offset)
	      (setq done (vera-evaluate-offset (car offset) langelem symbol)
		    offset (cdr offset)))
	    (if (not done)
		0
	      done))))
   ((not (numberp offset)) (setq offset (symbol-value offset))))
  offset)

(defun vera-get-offset (langelem)
  "Get offset from LANGELEM which is a cons cell of the form:
\(SYMBOL . RELPOS).  The symbol is matched against
vera-offsets-alist and the offset found there is either returned,
or added to the indentation at RELPOS.  If RELPOS is nil, then
the offset is simply returned."
  (let* ((symbol (car langelem))
	 (relpos (cdr langelem))
	 (match  (assq symbol vera-offsets-alist))
	 (offset (cdr-safe match)))
    (if (not match)
	(setq offset 0
	      relpos 0)
      (setq offset (vera-evaluate-offset offset langelem symbol)))
    (+ (if (and relpos
		(< relpos (save-excursion (beginning-of-line) (point))))
	   (save-excursion
	     (goto-char relpos)
	     (current-column))
	 0)
       (vera-evaluate-offset offset langelem symbol))))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; help functions

(defsubst vera-point (position)
  "Return the value of point at certain commonly referenced POSITIONs.
POSITION can be one of the following symbols:
  bol  -- beginning of line
  eol  -- end of line
  boi  -- back to indentation
  ionl -- indentation of next line
  iopl -- indentation of previous line
  bonl -- beginning of next line
  bopl -- beginning of previous line
This function does not modify point or mark."
  (save-excursion
    (cond
     ((eq position 'bol)  (beginning-of-line))
     ((eq position 'eol)  (end-of-line))
     ((eq position 'boi)  (back-to-indentation))
     ((eq position 'bonl) (forward-line 1))
     ((eq position 'bopl) (forward-line -1))
     ((eq position 'iopl) (forward-line -1) (back-to-indentation))
     ((eq position 'ionl) (forward-line 1) (back-to-indentation))
     (t (error "Unknown buffer position requested: %s" position)))
    (point)))

(defun vera-in-literal (&optional lim)
  "Determine if point is in a Vera literal."
  (save-excursion
    (let ((state (parse-partial-sexp (or lim (point-min)) (point))))
      (cond
       ((nth 3 state) 'string)
       ((nth 4 state) 'comment)
       (t nil)))))

(defun vera-skip-forward-literal ()
  "Skip forward literal and return t if within one."
  (let ((state (save-excursion
                 (if (fboundp 'syntax-ppss)
                     (syntax-ppss)
                   (parse-partial-sexp (point-min) (point))))))
    (when (nth 8 state)
      ;; Inside a string or comment.
      (goto-char (nth 8 state))
      (if (nth 3 state)
          ;; A string.
          (condition-case nil (forward-sexp 1)
            ;; Can't find end of string: it extends til end of buffer.
            (error (goto-char (point-max))))
        ;; A comment.
        (forward-comment 1))
      t)))

(defun vera-skip-backward-literal ()
  "Skip backward literal and return t if within one."
  (let ((state (save-excursion
                 (if (fboundp 'syntax-ppss)
                     (syntax-ppss)
                   (parse-partial-sexp (point-min) (point))))))
    (when (nth 8 state)
      ;; Inside a string or comment.
      (goto-char (nth 8 state))
      t)))

(defsubst vera-re-search-forward (regexp &optional bound noerror)
  "Like `re-search-forward', but skips over matches in literals."
  (let (ret)
    (while (and (setq ret (re-search-forward regexp bound noerror))
                (vera-skip-forward-literal)
                (if bound (< (point) bound) t)))
    ret))

(defsubst vera-re-search-backward (regexp &optional bound noerror)
  "Like `re-search-backward', but skips over matches in literals."
  (let (ret)
    (while (and (setq ret (re-search-backward regexp bound noerror))
                (vera-skip-backward-literal)
                (if bound (> (point) bound) t)))
    ret))

(defun vera-forward-syntactic-ws (&optional lim skip-directive)
  "Forward skip of syntactic whitespace."
  (save-restriction
    (let* ((lim (or lim (point-max)))
	   (here lim)
	   (hugenum (point-max)))
      (narrow-to-region (point) lim)
      (while (/= here (point))
	(setq here (point))
	(forward-comment hugenum)
	(when (and skip-directive (looking-at "^\\s-*#"))
	  (end-of-line))))))

(defun vera-backward-syntactic-ws (&optional lim skip-directive)
  "Backward skip over syntactic whitespace."
  (save-restriction
    (let* ((lim (or lim (point-min)))
	   (here lim)
	   (hugenum (- (point-max))))
      (when (< lim (point))
	(narrow-to-region lim (point))
	(while (/= here (point))
	  (setq here (point))
	  (forward-comment hugenum)
	  (when (and skip-directive
		     (save-excursion (back-to-indentation)
				     (= (following-char) ?\#)))
	    (beginning-of-line)))))))

(defmacro vera-prepare-search (&rest body)
  "Execute BODY with a syntax table that includes '_'."
  `(with-syntax-table vera-mode-ext-syntax-table ,@body))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; comment indentation functions

(defsubst vera-langelem-col (langelem &optional preserve-point)
  "Convenience routine to return the column of LANGELEM's relpos.
Leaves point at the relpos unless PRESERVE-POINT is non-nil."
  (let ((here (point)))
    (goto-char (cdr langelem))
    (prog1 (current-column)
      (if preserve-point
	  (goto-char here)))))

(defun vera-lineup-C-comments (langelem)
  "Line up C block comment continuation lines.
Nicked from `c-lineup-C-comments'."
  (save-excursion
    (let ((here (point))
	  (stars (progn (back-to-indentation)
			(skip-chars-forward "*")))
	  (langelem-col (vera-langelem-col langelem)))
      (back-to-indentation)
      (if (not (re-search-forward "/\\([*]+\\)" (vera-point 'eol) t))
	  (progn
	    (if (not (looking-at "[*]+"))
		(progn
		  ;; we now have to figure out where this comment begins.
		  (goto-char here)
		  (back-to-indentation)
		  (if (looking-at "[*]+/")
		      (progn (goto-char (match-end 0))
			     (forward-comment -1))
		    (goto-char (cdr langelem))
		    (back-to-indentation))))
	    (- (current-column) langelem-col))
	(if (zerop stars)
	    (progn
	      (skip-chars-forward " \t")
	      (- (current-column) langelem-col))
	  ;; how many stars on comment opening line?  if greater than
	  ;; on current line, align left.  if less than or equal,
	  ;; align right.  this should also pick up Javadoc style
	  ;; comments.
	  (if (> (length (match-string 1)) stars)
	      (progn
		(back-to-indentation)
		(- (current-column) -1 langelem-col))
	    (- (current-column) stars langelem-col)))))))

(defun vera-lineup-comment (langelem)
  "Line up a comment start."
  (save-excursion
    (back-to-indentation)
    (if (bolp)
	;; not indent if at beginning of line
	-1000
      ;; otherwise indent accordingly
      (goto-char (cdr langelem))
      (current-column))))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; move functions

(defconst vera-beg-block-re "{\\|\\<\\(begin\\|fork\\)\\>")

(defconst vera-end-block-re "}\\|\\<\\(end\\|join\\(\\s-+\\(all\\|any\\|none\\)\\)?\\)\\>")

(defconst vera-beg-substatement-re "\\<\\(else\\|for\\|if\\|repeat\\|while\\)\\>")

(defun vera-corresponding-begin (&optional recursive)
  "Find corresponding block begin if cursor is at a block end."
  (while (and (vera-re-search-backward
	       (concat "\\(" vera-end-block-re "\\)\\|" vera-beg-block-re)
	       nil t)
	      (match-string 1))
    (vera-corresponding-begin t))
  (unless recursive (vera-beginning-of-substatement)))

(defun vera-corresponding-if ()
  "Find corresponding `if' if cursor is at `else'."
  (while (and (vera-re-search-backward "}\\|\\<\\(if\\|else\\)\\>" nil t)
	      (not (equal (match-string 0) "if")))
    (if (equal (match-string 0) "else")
	(vera-corresponding-if)
      (forward-char)
      (backward-sexp))))

(defun vera-beginning-of-statement ()
  "Go to beginning of current statement."
  (let (pos)
    (while
	(progn
	  ;; search for end of previous statement
	  (while
	      (and (vera-re-search-backward
		    (concat "[);]\\|" vera-beg-block-re
			    "\\|" vera-end-block-re) nil t)
		   (equal (match-string 0) ")"))
	    (forward-char)
	    (backward-sexp))
	  (setq pos (match-beginning 0))
	  ;; go back to beginning of current statement
	  (goto-char (or (match-end 0) 0))
	  (vera-forward-syntactic-ws nil t)
	  (when (looking-at "(")
	    (forward-sexp)
	    (vera-forward-syntactic-ws nil t))
	  ;; if "else" found, go to "if" and search again
	  (when (looking-at "\\<else\\>")
	    (vera-corresponding-if)
	    (setq pos (point))
	    t))
      ;; if search is repeated, go to beginning of last search
      (goto-char pos))))

(defun vera-beginning-of-substatement ()
  "Go to beginning of current substatement."
  (let ((lim (point))
	pos)
  ;; go to beginning of statement
    (vera-beginning-of-statement)
    (setq pos (point))
    ;; go forward all substatement opening statements until at LIM
    (while (and (< (point) lim)
		(vera-re-search-forward vera-beg-substatement-re lim t))
      (setq pos (match-beginning 0)))
    (vera-forward-syntactic-ws nil t)
    (when (looking-at "(")
      (forward-sexp)
      (vera-forward-syntactic-ws nil t))
    (when (< (point) lim)
      (setq pos (point)))
    (goto-char pos)))

(defun vera-forward-statement ()
  "Move forward one statement."
  (interactive)
  (vera-prepare-search
   (while (and (vera-re-search-forward
		(concat "[(;]\\|" vera-beg-block-re "\\|" vera-end-block-re)
		nil t)
	       (equal (match-string 0) "("))
     (backward-char)
     (forward-sexp))
   (vera-beginning-of-substatement)))

(defun vera-backward-statement ()
  "Move backward one statement."
  (interactive)
  (vera-prepare-search
   (vera-backward-syntactic-ws nil t)
   (unless (= (preceding-char) ?\))
     (backward-char))
   (vera-beginning-of-substatement)))

(defun vera-forward-same-indent ()
  "Move forward to next line with same indent."
  (interactive)
  (let ((pos (point))
	(indent (current-indentation)))
    (beginning-of-line 2)
    (while (and (not (eobp))
		(or (looking-at "^\\s-*$")
		    (> (current-indentation) indent)))
      (beginning-of-line 2))
    (if (= (current-indentation) indent)
	(back-to-indentation)
      (message "No following line with same indent found in this block")
      (goto-char pos))))

(defun vera-backward-same-indent ()
  "Move backward to previous line with same indent."
  (interactive)
  (let ((pos (point))
	(indent (current-indentation)))
    (beginning-of-line -0)
    (while (and (not (bobp))
		(or (looking-at "^\\s-*$")
		    (> (current-indentation) indent)))
      (beginning-of-line -0))
    (if (= (current-indentation) indent)
	(back-to-indentation)
      (message "No preceding line with same indent found in this block")
      (goto-char pos))))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; syntax analysis

(defmacro vera-add-syntax (symbol &optional relpos)
  "A simple macro to append the syntax in SYMBOL to the syntax list.
try to increase performance by using this macro."
  `(setq syntax (cons (cons ,symbol ,(or relpos 0)) syntax)))

(defun vera-guess-basic-syntax ()
  "Determine syntactic context of current line of code."
  (save-excursion
    (beginning-of-line)
    (let ((indent-point (point))
	  syntax state placeholder pos)
      ;; determine syntax state
      (setq state (parse-partial-sexp (point-min) (point)))
      (cond
       ;; CASE 1: in a comment?
       ((nth 4 state)
	;; skip empty lines
	(while (and (zerop (forward-line -1))
		    (looking-at "^\\s-*$")))
	(vera-add-syntax 'comment (vera-point 'boi)))
       ;; CASE 2: in a string?
       ((nth 3 state)
	(vera-add-syntax 'string))
       ;; CASE 3: at a directive?
       ((save-excursion (back-to-indentation) (= (following-char) ?\#))
	(vera-add-syntax 'directive (point)))
       ;; CASE 4: after an opening parenthesis (argument list continuation)?
       ((and (nth 1 state)
	     (or (= (char-after (nth 1 state)) ?\()
		 ;; also for concatenation (opening '{' and ',' on eol/eopl)
		 (and (= (char-after (nth 1 state)) ?\{)
		      (or (save-excursion
			    (vera-backward-syntactic-ws) (= (char-before) ?,))
			  (save-excursion
			    (end-of-line) (= (char-before) ?,))))))
	(goto-char (1+ (nth 1 state)))
	;; is there code after the opening parenthesis on the same line?
	(if (looking-at "\\s-*$")
	    (vera-add-syntax 'arglist-cont (vera-point 'boi))
	  (vera-add-syntax 'arglist-cont-nonempty (point))))
       ;; CASE 5: at a block closing?
       ((save-excursion (back-to-indentation) (looking-at vera-end-block-re))
	;; look for the corresponding begin
	(vera-corresponding-begin)
	(vera-add-syntax 'block-close (vera-point 'boi)))
       ;; CASE 6: at a block intro (the first line after a block opening)?
       ((and (save-excursion
	       (vera-backward-syntactic-ws nil t)
	       ;; previous line ends with a block opening?
	       (or (/= (skip-chars-backward "{") 0) (backward-word 1))
	       (when (looking-at vera-beg-block-re)
		 ;; go to beginning of substatement
		 (vera-beginning-of-substatement)
		 (setq placeholder (point))))
	     ;; not if "fork" is followed by "{"
	     (save-excursion
	       (not (and (progn (back-to-indentation) (looking-at "{"))
			 (progn (goto-char placeholder)
				(looking-at "\\<fork\\>"))))))
	(goto-char placeholder)
	(vera-add-syntax 'block-intro (vera-point 'boi)))
       ;; CASE 7: at the beginning of an else clause?
       ((save-excursion (back-to-indentation) (looking-at "\\<else\\>"))
	;; find corresponding if
	(vera-corresponding-if)
	(vera-add-syntax 'else-clause (vera-point 'boi)))
       ;; CASE 8: at the beginning of a statement?
       ;; is the previous command completed?
       ((or (save-excursion
	      (vera-backward-syntactic-ws nil t)
	      (setq placeholder (point))
	      ;; at the beginning of the buffer?
	      (or (bobp)
		  ;; previous line ends with a semicolon or
		  ;; is a block opening or closing?
		  (when (or (/= (skip-chars-backward "{};") 0)
			    (progn (back-to-indentation)
				   (looking-at (concat vera-beg-block-re "\\|"
						       vera-end-block-re))))
		    ;; if at a block closing, go to beginning
		    (when (looking-at vera-end-block-re)
		      (vera-corresponding-begin))
		    ;; go to beginning of the statement
		    (vera-beginning-of-statement)
		    (setq placeholder (point)))
		  ;; at a directive?
		  (when (progn (back-to-indentation) (looking-at "#"))
		    ;; go to previous statement
		    (vera-beginning-of-statement)
		    (setq placeholder (point)))))
	    ;; at a block opening?
	    (when (save-excursion (back-to-indentation)
				  (looking-at vera-beg-block-re))
	      ;; go to beginning of the substatement
	      (vera-beginning-of-substatement)
	      (setq placeholder (point))))
	(goto-char placeholder)
	(vera-add-syntax 'statement (vera-point 'boi)))
       ;; CASE 9: at the beginning of a substatement?
       ;; is this line preceded by a substatement opening statement?
       ((save-excursion (vera-backward-syntactic-ws nil t)
			(when (= (preceding-char) ?\)) (backward-sexp))
			(backward-word 1)
			(setq placeholder (point))
			(looking-at vera-beg-substatement-re))
	(goto-char placeholder)
	(vera-add-syntax 'substatement (vera-point 'boi)))
       ;; CASE 10: it must be a statement continuation!
       (t
	;; go to beginning of statement
	(vera-beginning-of-substatement)
	(vera-add-syntax 'statement-cont (vera-point 'boi))))
      ;; special case: look for a comment start
      (goto-char indent-point)
      (skip-chars-forward " \t")
      (when (looking-at comment-start)
	(vera-add-syntax 'comment-intro))
      ;; return syntax
      syntax)))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; indentation functions

(defun vera-indent-line ()
  "Indent the current line as Vera code.
Return the amount of indentation change (in columns)."
  (interactive)
  (vera-prepare-search
   (let* ((syntax (vera-guess-basic-syntax))
	  (pos (- (point-max) (point)))
	  (indent (apply '+ (mapcar 'vera-get-offset syntax)))
	  (shift-amt  (- (current-indentation) indent)))
     (when vera-echo-syntactic-information-p
       (message "syntax: %s, indent= %d" syntax indent))
     (unless (zerop shift-amt)
       (beginning-of-line)
       (delete-region (point) (vera-point 'boi))
       (indent-to indent))
     (if (< (point) (vera-point 'boi))
	 (back-to-indentation)
       ;; If initial point was within line's indentation, position after
       ;; the indentation.  Else stay at same point in text.
       (when (> (- (point-max) pos) (point))
	 (goto-char (- (point-max) pos))))
     shift-amt)))

(defun vera-indent-buffer ()
  "Indent whole buffer as Vera code.
Calls `indent-region' for whole buffer."
  (interactive)
  (message "Indenting buffer...")
  (indent-region (point-min) (point-max) nil)
  (message "Indenting buffer...done"))

(defun vera-indent-region (start end column)
  "Indent region as Vera code."
  (interactive "r\nP")
  (message "Indenting region...")
  (indent-region start end column)
  (message "Indenting region...done"))

(defsubst vera-indent-block-closing ()
  "If previous word is a block closing or `else', indent line again."
  (when (= (char-syntax (preceding-char)) ?w)
    (save-excursion
      (backward-word 1)
      (when (and (not (vera-in-literal))
		 (looking-at (concat vera-end-block-re "\\|\\<else\\>")))
	(indent-according-to-mode)))))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; electrifications

(defun vera-electric-tab (&optional prefix-arg)
  "Do what I mean (indent, expand, tab, change indent, etc..).
If preceding character is part of a word or a paren then `hippie-expand',
else if right of non whitespace on line then `tab-to-tab-stop',
else if last command was a tab or return then dedent one step or if a comment
toggle between normal indent and inline comment indent,
else indent `correctly'.
If `vera-intelligent-tab' is nil, always indent line."
  (interactive "*P")
  (if vera-intelligent-tab
      (progn
	(cond ((and (not (featurep 'xemacs)) (use-region-p))
	       (vera-indent-region (region-beginning) (region-end) nil))
	      ((memq (char-syntax (preceding-char)) '(?w ?_))
	       (let ((case-fold-search t)
		     (case-replace nil)
		     (hippie-expand-only-buffers
		      (or (and (boundp 'hippie-expand-only-buffers)
			       hippie-expand-only-buffers)
			  '(vera-mode))))
		 (vera-expand-abbrev prefix-arg)))
	      ((> (current-column) (current-indentation))
	       (tab-to-tab-stop))
	      ((and (or (eq last-command 'vera-electric-tab)
			(eq last-command 'vera-electric-return))
		    (/= 0 (current-indentation)))
	       (backward-delete-char-untabify vera-basic-offset nil))
	      (t (indent-according-to-mode)))
	(setq this-command 'vera-electric-tab))
    (indent-according-to-mode)))

(defun vera-electric-return ()
  "Insert newline and indent.  Indent current line if it is a block closing."
  (interactive)
  (vera-indent-block-closing)
  (newline-and-indent))

(defun vera-electric-space (arg)
  "Insert a space.  Indent current line if it is a block closing."
  (interactive "*P")
  (unless arg
    (vera-indent-block-closing))
  (self-insert-command (prefix-numeric-value arg)))

(defun vera-electric-opening-brace (arg)
  "Outdent opening brace."
  (interactive "*P")
  (self-insert-command (prefix-numeric-value arg))
  (unless arg
    (indent-according-to-mode)))

(defun vera-electric-closing-brace (arg)
  "Outdent closing brace."
  (interactive "*P")
  (self-insert-command (prefix-numeric-value arg))
  (unless arg
    (indent-according-to-mode)))

(defun vera-electric-pound (arg)
  "Insert `#' and indent as directive it first character of line."
  (interactive "*P")
  (self-insert-command (prefix-numeric-value arg))
  (unless arg
    (save-excursion
      (backward-char)
      (skip-chars-backward " \t")
      (when (bolp)
	(delete-horizontal-space)))))

(defun vera-electric-star (arg)
  "Insert a star character.  Nicked from `c-electric-star'."
  (interactive "*P")
  (self-insert-command (prefix-numeric-value arg))
  (if (and (not arg)
	   (memq (vera-in-literal) '(comment))
	   (eq (char-before) ?*)
	   (save-excursion
	     (forward-char -1)
	     (skip-chars-backward "*")
	     (if (eq (char-before) ?/)
		 (forward-char -1))
	     (skip-chars-backward " \t")
	     (bolp)))
      (indent-according-to-mode)))

(defun vera-electric-slash (arg)
  "Insert a slash character.  Nicked from `c-electric-slash'."
  (interactive "*P")
  (let* ((ch (char-before))
	 (indentp (and (not arg)
		       (eq last-command-char ?/)
		       (or (and (eq ch ?/)
				(not (vera-in-literal)))
			   (and (eq ch ?*)
				(vera-in-literal))))))
    (self-insert-command (prefix-numeric-value arg))
    (when indentp
      (indent-according-to-mode))))


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Miscellaneous
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Hippie expand customization (for expansion of Vera commands)

(defvar vera-abbrev-list
  (append (list nil) vera-keywords
	  (list nil) vera-types
	  (list nil) vera-functions
	  (list nil) vera-constants
	  (list nil) vera-rvm-types
	  (list nil) vera-rvm-functions
	  (list nil) vera-rvm-constants)
  "Predefined abbreviations for Vera.")

(defvar vera-expand-upper-case nil)

(eval-when-compile (require 'hippie-exp))

(defun vera-try-expand-abbrev (old)
  "Try expanding abbreviations from `vera-abbrev-list'."
  (unless old
    (he-init-string (he-dabbrev-beg) (point))
    (setq he-expand-list
	  (let ((abbrev-list vera-abbrev-list)
		(sel-abbrev-list '()))
	    (while abbrev-list
	      (when (or (not (stringp (car abbrev-list)))
			(string-match
			 (concat "^" he-search-string) (car abbrev-list)))
		(setq sel-abbrev-list
		      (cons (car abbrev-list) sel-abbrev-list)))
	      (setq abbrev-list (cdr abbrev-list)))
	    (nreverse sel-abbrev-list))))
  (while (and he-expand-list
	      (or (not (stringp (car he-expand-list)))
		  (he-string-member (car he-expand-list) he-tried-table t)))
    (unless (stringp (car he-expand-list))
      (setq vera-expand-upper-case (car he-expand-list)))
    (setq he-expand-list (cdr he-expand-list)))
  (if (null he-expand-list)
      (progn (when old (he-reset-string))
	     nil)
    (he-substitute-string
     (if vera-expand-upper-case
	 (upcase (car he-expand-list))
       (car he-expand-list))
     t)
    (setq he-expand-list (cdr he-expand-list))
    t))

;; function for expanding abbrevs and dabbrevs
(defalias 'vera-expand-abbrev
  (make-hippie-expand-function '(try-expand-dabbrev
				 try-expand-dabbrev-all-buffers
				 vera-try-expand-abbrev)))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Comments

(defun vera-comment-uncomment-region (beg end &optional arg)
  "Comment region if not commented, uncomment region if already commented."
  (interactive "r\nP")
  (goto-char beg)
  (if (looking-at comment-start-skip)
      (comment-region beg end '(4))
    (comment-region beg end)))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Help functions

(defun vera-customize ()
  "Call the customize function with `vera' as argument."
  (interactive)
  (customize-group 'vera))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Other

;; remove ".vr" from `completion-ignored-extensions'
(setq completion-ignored-extensions
      (delete ".vr" completion-ignored-extensions))


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Bug reports
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(defconst vera-mode-help-address "Reto Zimmermann <reto@gnu.org>"
  "Address for Vera Mode bug reports.")

;; get reporter-submit-bug-report when byte-compiling
(eval-when-compile
  (require 'reporter))

(defun vera-submit-bug-report ()
  "Submit via mail a bug report on Vera Mode."
  (interactive)
  ;; load in reporter
  (and
   (y-or-n-p "Do you want to submit a report on Vera Mode? ")
   (require 'reporter)
   (let ((reporter-prompt-for-summary-p t))
     (reporter-submit-bug-report
      vera-mode-help-address
      (concat "Vera Mode " vera-version)
      (list
       ;; report all important variables
       'vera-basic-offset
       'vera-underscore-is-part-of-word
       'vera-intelligent-tab
       )
      nil nil
      "Hi Reto,"))))


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Documentation
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(defun vera-version ()
  "Echo the current version of Vera Mode in the minibuffer."
  (interactive)
  (message "Vera Mode %s (%s)" vera-version vera-time-stamp))


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(provide 'vera-mode)

;; arch-tag: 22eae722-7ac5-47ac-a713-c4db1cf623a9
;;; vera-mode.el ends here