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
| | ;;; add-log.el --- change log maintenance commands for Emacs
;; Copyright (C) 1985, 1986, 1988, 1993, 1994, 1997, 1998, 2000, 2001,
;; 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: tools
;; 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 facility is documented in the Emacs Manual.
;; Todo:
;; - Find/use/create _MTN/log if there's a _MTN directory.
;; - Find/use/create ++log.* if there's an {arch} directory.
;; - Use an open *VC-Log* or *cvs-commit* buffer if it's related to the
;; source file.
;; - Don't add TAB indents (and username?) if inserting entries in those
;; special places.
;;; Code:
(eval-when-compile
(require 'timezone))
(defgroup change-log nil
"Change log maintenance."
:group 'tools
:link '(custom-manual "(emacs)Change Log")
:prefix "change-log-"
:prefix "add-log-")
(defcustom change-log-default-name nil
"Name of a change log file for \\[add-change-log-entry]."
:type '(choice (const :tag "default" nil)
string)
:group 'change-log)
;;;###autoload
(put 'change-log-default-name 'safe-local-variable 'string-or-null-p)
(defcustom change-log-mode-hook nil
"Normal hook run by `change-log-mode'."
:type 'hook
:group 'change-log)
;; Many modes set this variable, so avoid warnings.
;;;###autoload
(defcustom add-log-current-defun-function nil
"If non-nil, function to guess name of surrounding function.
It is used by `add-log-current-defun' in preference to built-in rules.
Returns function's name as a string, or nil if outside a function."
:type '(choice (const nil) function)
:group 'change-log)
;;;###autoload
(defcustom add-log-full-name nil
"Full name of user, for inclusion in ChangeLog daily headers.
This defaults to the value returned by the function `user-full-name'."
:type '(choice (const :tag "Default" nil)
string)
:group 'change-log)
;;;###autoload
(defcustom add-log-mailing-address nil
"Email addresses of user, for inclusion in ChangeLog headers.
This defaults to the value of `user-mail-address'. In addition to
being a simple string, this value can also be a list. All elements
will be recognized as referring to the same user; when creating a new
ChangeLog entry, one element will be chosen at random."
:type '(choice (const :tag "Default" nil)
(string :tag "String")
(repeat :tag "List of Strings" string))
:group 'change-log)
(defcustom add-log-time-format 'add-log-iso8601-time-string
"Function that defines the time format.
For example, `add-log-iso8601-time-string', which gives the
date in international ISO 8601 format,
and `current-time-string' are two valid values."
:type '(radio (const :tag "International ISO 8601 format"
add-log-iso8601-time-string)
(const :tag "Old format, as returned by `current-time-string'"
current-time-string)
(function :tag "Other"))
:group 'change-log)
(defcustom add-log-keep-changes-together nil
"If non-nil, normally keep day's log entries for one file together.
Log entries for a given file made with \\[add-change-log-entry] or
\\[add-change-log-entry-other-window] will only be added to others \
for that file made
today if this variable is non-nil or that file comes first in today's
entries. Otherwise another entry for that file will be started. An
original log:
* foo (...): ...
* bar (...): change 1
in the latter case, \\[add-change-log-entry-other-window] in a \
buffer visiting `bar', yields:
* bar (...): -!-
* foo (...): ...
* bar (...): change 1
and in the former:
* foo (...): ...
* bar (...): change 1
(...): -!-
The NEW-ENTRY arg to `add-change-log-entry' can override the effect of
this variable."
:version "20.3"
:type 'boolean
:group 'change-log)
(defcustom add-log-always-start-new-record nil
"If non-nil, `add-change-log-entry' will always start a new record."
:version "22.1"
:type 'boolean
:group 'change-log)
(defcustom add-log-buffer-file-name-function nil
"If non-nil, function to call to identify the full filename of a buffer.
This function is called with no argument. If this is nil, the default is to
use `buffer-file-name'."
:type '(choice (const nil) function)
:group 'change-log)
(defcustom add-log-file-name-function nil
"If non-nil, function to call to identify the filename for a ChangeLog entry.
This function is called with one argument, the value of variable
`buffer-file-name' in that buffer. If this is nil, the default is to
use the file's name relative to the directory of the change log file."
:type '(choice (const nil) function)
:group 'change-log)
(defcustom change-log-version-info-enabled nil
"If non-nil, enable recording version numbers with the changes."
:version "21.1"
:type 'boolean
:group 'change-log)
(defcustom change-log-version-number-regexp-list
(let ((re "\\([0-9]+\.[0-9.]+\\)"))
(list
;; (defconst ad-version "2.15"
(concat "^(def[^ \t\n]+[ \t]+[^ \t\n][ \t]\"" re)
;; Revision: pcl-cvs.el,v 1.72 1999/09/05 20:21:54 monnier Exp
(concat "^;+ *Revision: +[^ \t\n]+[ \t]+" re)))
"List of regexps to search for version number.
The version number must be in group 1.
Note: The search is conducted only within 10%, at the beginning of the file."
:version "21.1"
:type '(repeat regexp)
:group 'change-log)
(defface change-log-date
'((t (:inherit font-lock-string-face)))
"Face used to highlight dates in date lines."
:version "21.1"
:group 'change-log)
;; backward-compatibility alias
(put 'change-log-date-face 'face-alias 'change-log-date)
(defface change-log-name
'((t (:inherit font-lock-constant-face)))
"Face for highlighting author names."
:version "21.1"
:group 'change-log)
;; backward-compatibility alias
(put 'change-log-name-face 'face-alias 'change-log-name)
(defface change-log-email
'((t (:inherit font-lock-variable-name-face)))
"Face for highlighting author email addresses."
:version "21.1"
:group 'change-log)
;; backward-compatibility alias
(put 'change-log-email-face 'face-alias 'change-log-email)
(defface change-log-file
'((t (:inherit font-lock-function-name-face)))
"Face for highlighting file names."
:version "21.1"
:group 'change-log)
;; backward-compatibility alias
(put 'change-log-file-face 'face-alias 'change-log-file)
(defface change-log-list
'((t (:inherit font-lock-keyword-face)))
"Face for highlighting parenthesized lists of functions or variables."
:version "21.1"
:group 'change-log)
;; backward-compatibility alias
(put 'change-log-list-face 'face-alias 'change-log-list)
(defface change-log-conditionals
'((t (:inherit font-lock-variable-name-face)))
"Face for highlighting conditionals of the form `[...]'."
:version "21.1"
:group 'change-log)
;; backward-compatibility alias
(put 'change-log-conditionals-face 'face-alias 'change-log-conditionals)
(defface change-log-function
'((t (:inherit font-lock-variable-name-face)))
"Face for highlighting items of the form `<....>'."
:version "21.1"
:group 'change-log)
;; backward-compatibility alias
(put 'change-log-function-face 'face-alias 'change-log-function)
(defface change-log-acknowledgement
'((t (:inherit font-lock-comment-face)))
"Face for highlighting acknowledgments."
:version "21.1"
:group 'change-log)
;; backward-compatibility alias
(put 'change-log-acknowledgement-face 'face-alias 'change-log-acknowledgement)
(defconst change-log-file-names-re "^\\( +\\|\t\\)\\* \\([^ ,:([\n]+\\)")
(defconst change-log-start-entry-re "^\\sw.........[0-9:+ ]*")
(defvar change-log-font-lock-keywords
`(;;
;; Date lines, new (2000-01-01) and old (Sat Jan 1 00:00:00 2000) styles.
;; Fixme: this regepx is just an approximate one and may match
;; wrongly with a non-date line existing as a random note. In
;; addition, using any kind of fixed setting like this doesn't
;; work if a user customizes add-log-time-format.
("^[0-9-]+ +\\|^\\(Sun\\|Mon\\|Tue\\|Wed\\|Thu\\|Fri\\|Sat\\) [A-z][a-z][a-z] [0-9:+ ]+"
(0 'change-log-date-face)
;; Name and e-mail; some people put e-mail in parens, not angles.
("\\([^<(]+?\\)[ \t]*[(<]\\([A-Za-z0-9_.+-]+@[A-Za-z0-9_.-]+\\)[>)]" nil nil
(1 'change-log-name)
(2 'change-log-email)))
;;
;; File names.
(,change-log-file-names-re
(2 'change-log-file)
;; Possibly further names in a list:
("\\=, \\([^ ,:([\n]+\\)" nil nil (1 'change-log-file))
;; Possibly a parenthesized list of names:
("\\= (\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)"
nil nil (1 'change-log-list))
("\\=, *\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)"
nil nil (1 'change-log-list)))
;;
;; Function or variable names.
("^\\( +\\|\t\\)(\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)"
(2 'change-log-list)
("\\=, *\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)" nil nil
(1 'change-log-list)))
;;
;; Conditionals.
("\\[!?\\([^]\n]+\\)\\]\\(:\\| (\\)" (1 'change-log-conditionals))
;;
;; Function of change.
("<\\([^>\n]+\\)>\\(:\\| (\\)" (1 'change-log-function))
;;
;; Acknowledgements.
;; Don't include plain "From" because that is vague;
;; we want to encourage people to say something more specific.
;; Note that the FSF does not use "Patches by"; our convention
;; is to put the name of the author of the changes at the top
;; of the change log entry.
("\\(^\\( +\\|\t\\)\\| \\)\\(Patch\\(es\\)? by\\|Report\\(ed by\\| from\\)\\|Suggest\\(ed by\\|ion from\\)\\)"
3 'change-log-acknowledgement))
"Additional expressions to highlight in Change Log mode.")
(defun change-log-search-file-name (where)
"Return the file-name for the change under point."
(save-excursion
(goto-char where)
(beginning-of-line 1)
(if (looking-at change-log-start-entry-re)
;; We are at the start of an entry, search forward for a file
;; name.
(progn
(re-search-forward change-log-file-names-re nil t)
(match-string-no-properties 2))
(if (looking-at change-log-file-names-re)
;; We found a file name.
(match-string-no-properties 2)
;; Look backwards for either a file name or the log entry start.
(if (re-search-backward
(concat "\\(" change-log-start-entry-re
"\\)\\|\\("
change-log-file-names-re "\\)") nil t)
(if (match-beginning 1)
;; We got the start of the entry, look forward for a
;; file name.
(progn
(re-search-forward change-log-file-names-re nil t)
(match-string-no-properties 2))
(match-string-no-properties 4))
;; We must be before any file name, look forward.
(re-search-forward change-log-file-names-re nil t)
(match-string-no-properties 2))))))
(defun change-log-find-file ()
"Visit the file for the change under point."
(interactive)
(let ((file (change-log-search-file-name (point))))
(if (and file (file-exists-p file))
(find-file file)
(message "No such file or directory: %s" file))))
(defun change-log-search-tag-name-1 (&optional from)
"Search for a tag name within subexpression 1 of last match.
Optional argument FROM specifies a buffer position where the tag
name should be located. Return value is a cons whose car is the
string representing the tag and whose cdr is the position where
the tag was found."
(save-restriction
(narrow-to-region (match-beginning 1) (match-end 1))
(when from (goto-char from))
;; The regexp below skips any symbol near `point' (FROM) followed by
;; whitespace and another symbol. This should skip, for example,
;; "struct" in a specification like "(struct buffer)" and move to
;; "buffer". A leading paren is ignored.
(when (looking-at
"[(]?\\(?:\\(?:\\sw\\|\\s_\\)+\\(?:[ \t]+\\(\\sw\\|\\s_\\)+\\)\\)")
(goto-char (match-beginning 1)))
(cons (find-tag-default) (point))))
(defconst change-log-tag-re
"(\\(\\(?:\\sw\\|\\s_\\)+\\(?:[, \t]+\\(?:\\sw\\|\\s_\\)+\\)*\\))"
"Regexp matching a tag name in change log entries.")
(defun change-log-search-tag-name (&optional at)
"Search for a tag name near `point'.
Optional argument AT non-nil means search near buffer position AT.
Return value is a cons whose car is the string representing
the tag and whose cdr is the position where the tag was found."
(save-excursion
(goto-char (setq at (or at (point))))
(save-restriction
(widen)
(or (condition-case nil
;; Within parenthesized list?
(save-excursion
(backward-up-list)
(when (looking-at change-log-tag-re)
(change-log-search-tag-name-1 at)))
(error nil))
(condition-case nil
;; Before parenthesized list on same line?
(save-excursion
(when (and (skip-chars-forward " \t")
(looking-at change-log-tag-re))
(change-log-search-tag-name-1)))
(error nil))
(condition-case nil
;; Near file name?
(save-excursion
(when (and (progn
(beginning-of-line)
(looking-at change-log-file-names-re))
(goto-char (match-end 0))
(skip-syntax-forward " ")
(looking-at change-log-tag-re))
(change-log-search-tag-name-1)))
(error nil))
(condition-case nil
;; Anywhere else within current entry?
(let ((from
(save-excursion
(end-of-line)
(if (re-search-backward change-log-start-entry-re nil t)
(match-beginning 0)
(point-min))))
(to
(save-excursion
(end-of-line)
(if (re-search-forward change-log-start-entry-re nil t)
(match-beginning 0)
(point-max)))))
(when (and (< from to) (<= from at) (<= at to))
(save-restriction
;; Narrow to current change log entry.
(narrow-to-region from to)
(cond
((re-search-backward change-log-tag-re nil t)
(narrow-to-region (match-beginning 1) (match-end 1))
(goto-char (point-max))
(cons (find-tag-default) (point-max)))
((re-search-forward change-log-tag-re nil t)
(narrow-to-region (match-beginning 1) (match-end 1))
(goto-char (point-min))
(cons (find-tag-default) (point-min)))))))
(error nil))))))
(defvar change-log-find-head nil)
(defvar change-log-find-tail nil)
(defvar change-log-find-window nil)
(defun change-log-goto-source-1 (tag regexp file buffer
&optional window first last)
"Search for tag TAG in buffer BUFFER visiting file FILE.
REGEXP is a regular expression for TAG. The remaining arguments
are optional: WINDOW denotes the window to display the results of
the search. FIRST is a position in BUFFER denoting the first
match from previous searches for TAG. LAST is the position in
BUFFER denoting the last match for TAG in the last search."
(with-current-buffer buffer
(save-excursion
(save-restriction
(widen)
(if last
(progn
;; When LAST is set make sure we continue from the next
;; line end to not find the same tag again.
(goto-char last)
(end-of-line)
(condition-case nil
;; Try to go to the end of the current defun to avoid
;; false positives within the current defun's body
;; since these would match `add-log-current-defun'.
(end-of-defun)
;; Don't fall behind when `end-of-defun' fails.
(error (progn (goto-char last) (end-of-line))))
(setq last nil))
;; When LAST was not set start at beginning of BUFFER.
(goto-char (point-min)))
(let (current-defun)
(while (and (not last) (re-search-forward regexp nil t))
;; Verify that `add-log-current-defun' invoked at the end
;; of the match returns TAG. This heuristic works well
;; whenever the name of the defun occurs within the first
;; line of the defun.
(setq current-defun (add-log-current-defun))
(when (and current-defun (string-equal current-defun tag))
;; Record this as last match.
(setq last (line-beginning-position))
;; Record this as first match when there's none.
(unless first (setq first last)))))))
(if (or last first)
(with-selected-window
(setq change-log-find-window (or window (display-buffer buffer)))
(if last
(progn
(when (or (< last (point-min)) (> last (point-max)))
;; Widen to show TAG.
(widen))
(push-mark)
(goto-char last))
;; When there are no more matches go (back) to FIRST.
(message "No more matches for tag `%s' in file `%s'" tag file)
(setq last first)
(goto-char first))
;; Return new "tail".
(list (selected-window) first last))
(message "Source location of tag `%s' not found in file `%s'" tag file)
nil)))
(defun change-log-goto-source ()
"Go to source location of \"change log tag\" near `point'.
A change log tag is a symbol within a parenthesized,
comma-separated list. If no suitable tag can be found nearby,
try to visit the file for the change under `point' instead."
(interactive)
(if (and (eq last-command 'change-log-goto-source)
change-log-find-tail)
(setq change-log-find-tail
(condition-case nil
(apply 'change-log-goto-source-1
(append change-log-find-head change-log-find-tail))
(error
(format "Cannot find more matches for tag `%s' in file `%s'"
(car change-log-find-head)
(nth 2 change-log-find-head)))))
(save-excursion
(let* ((at (point))
(tag-at (change-log-search-tag-name))
(tag (car tag-at))
(file (when tag-at (change-log-search-file-name (cdr tag-at))))
(file-at (when file (match-beginning 2)))
;; `file-2' is the file `change-log-search-file-name' finds
;; at `point'. We use `file-2' as a fallback when `tag' or
;; `file' are not suitable for some reason.
(file-2 (change-log-search-file-name at))
(file-2-at (when file-2 (match-beginning 2))))
(cond
((and (or (not tag) (not file) (not (file-exists-p file)))
(or (not file-2) (not (file-exists-p file-2))))
(error "Cannot find tag or file near `point'"))
((and file-2 (file-exists-p file-2)
(or (not tag) (not file) (not (file-exists-p file))
(and (or (and (< file-at file-2-at) (<= file-2-at at))
(and (<= at file-2-at) (< file-2-at file-at))))))
;; We either have not found a suitable file name or `file-2'
;; provides a "better" file name wrt `point'. Go to the
;; buffer of `file-2' instead.
(setq change-log-find-window
(display-buffer (find-file-noselect file-2))))
(t
(setq change-log-find-head
(list tag (concat "\\_<" (regexp-quote tag) "\\_>")
file (find-file-noselect file)))
(condition-case nil
(setq change-log-find-tail
(apply 'change-log-goto-source-1 change-log-find-head))
(error
(format "Cannot find matches for tag `%s' in file `%s'"
tag file)))))))))
(defun change-log-next-error (&optional argp reset)
"Move to the Nth (default 1) next match in a ChangeLog buffer.
Compatibility function for \\[next-error] invocations."
(interactive "p")
(let* ((argp (or argp 0))
(count (abs argp)) ; how many cycles
(down (< argp 0)) ; are we going down? (is argp negative?)
(up (not down))
(search-function (if up 're-search-forward 're-search-backward)))
;; set the starting position
(goto-char (cond (reset (point-min))
(down (line-beginning-position))
(up (line-end-position))
((point))))
(funcall search-function change-log-file-names-re nil t count))
(beginning-of-line)
;; if we found a place to visit...
(when (looking-at change-log-file-names-re)
(let (change-log-find-window)
(change-log-goto-source)
(when change-log-find-window
;; Select window displaying source file.
(select-window change-log-find-window)))))
(defvar change-log-mode-map
(let ((map (make-sparse-keymap)))
(define-key map [?\C-c ?\C-p] 'add-log-edit-prev-comment)
(define-key map [?\C-c ?\C-n] 'add-log-edit-next-comment)
(define-key map [?\C-c ?\C-f] 'change-log-find-file)
(define-key map [?\C-c ?\C-c] 'change-log-goto-source)
map)
"Keymap for Change Log major mode.")
;; It used to be called change-log-time-zone-rule but really should be
;; called add-log-time-zone-rule since it's only used from add-log-* code.
(defvaralias 'change-log-time-zone-rule 'add-log-time-zone-rule)
(defvar add-log-time-zone-rule nil
"Time zone used for calculating change log time stamps.
It takes the same format as the TZ argument of `set-time-zone-rule'.
If nil, use local time.
If t, use universal time.")
(put 'add-log-time-zone-rule 'safe-local-variable
'(lambda (x) (or (booleanp x) (stringp x))))
(defun add-log-iso8601-time-zone (&optional time)
(let* ((utc-offset (or (car (current-time-zone time)) 0))
(sign (if (< utc-offset 0) ?- ?+))
(sec (abs utc-offset))
(ss (% sec 60))
(min (/ sec 60))
(mm (% min 60))
(hh (/ min 60)))
(format (cond ((not (zerop ss)) "%c%02d:%02d:%02d")
((not (zerop mm)) "%c%02d:%02d")
(t "%c%02d"))
sign hh mm ss)))
(defvar add-log-iso8601-with-time-zone nil)
(defun add-log-iso8601-time-string ()
(let ((time (format-time-string "%Y-%m-%d"
nil (eq t add-log-time-zone-rule))))
(if add-log-iso8601-with-time-zone
(concat time " " (add-log-iso8601-time-zone))
time)))
(defun change-log-name ()
"Return (system-dependent) default name for a change log file."
(or change-log-default-name
"ChangeLog"))
(defun add-log-edit-prev-comment (arg)
"Cycle backward through Log-Edit mode comment history.
With a numeric prefix ARG, go back ARG comments."
(interactive "*p")
(save-restriction
(narrow-to-region (point)
(if (memq last-command '(add-log-edit-prev-comment
add-log-edit-next-comment))
(mark) (point)))
(when (fboundp 'log-edit-previous-comment)
(log-edit-previous-comment arg)
(indent-region (point-min) (point-max))
(goto-char (point-min))
(unless (save-restriction (widen) (bolp))
(delete-region (point) (progn (skip-chars-forward " \t\n") (point))))
(set-mark (point-min))
(goto-char (point-max))
(delete-region (point) (progn (skip-chars-backward " \t\n") (point))))))
(defun add-log-edit-next-comment (arg)
"Cycle forward through Log-Edit mode comment history.
With a numeric prefix ARG, go back ARG comments."
(interactive "*p")
(add-log-edit-prev-comment (- arg)))
;;;###autoload
(defun prompt-for-change-log-name ()
"Prompt for a change log name."
(let* ((default (change-log-name))
(name (expand-file-name
(read-file-name (format "Log file (default %s): " default)
nil default))))
;; Handle something that is syntactically a directory name.
;; Look for ChangeLog or whatever in that directory.
(if (string= (file-name-nondirectory name) "")
(expand-file-name (file-name-nondirectory default)
name)
;; Handle specifying a file that is a directory.
(if (file-directory-p name)
(expand-file-name (file-name-nondirectory default)
(file-name-as-directory name))
name))))
(defun change-log-version-number-search ()
"Return version number of current buffer's file.
This is the value returned by `vc-working-revision' or, if that is
nil, by matching `change-log-version-number-regexp-list'."
(let* ((size (buffer-size))
(limit
;; The version number can be anywhere in the file, but
;; restrict search to the file beginning: 10% should be
;; enough to prevent some mishits.
;;
;; Apply percentage only if buffer size is bigger than
;; approx 100 lines.
(if (> size (* 100 80)) (+ (point) (/ size 10)))))
(or (and buffer-file-name (vc-working-revision buffer-file-name))
(save-restriction
(widen)
(let ((regexps change-log-version-number-regexp-list)
version)
(while regexps
(save-excursion
(goto-char (point-min))
(when (re-search-forward (pop regexps) limit t)
(setq version (match-string 1)
regexps nil))))
version)))))
(declare-function diff-find-source-location "diff-mode"
(&optional other-file reverse noprompt))
;;;###autoload
(defun find-change-log (&optional file-name buffer-file)
"Find a change log file for \\[add-change-log-entry] and return the name.
Optional arg FILE-NAME specifies the file to use.
If FILE-NAME is nil, use the value of `change-log-default-name'.
If `change-log-default-name' is nil, behave as though it were 'ChangeLog'
\(or whatever we use on this operating system).
If `change-log-default-name' contains a leading directory component, then
simply find it in the current directory. Otherwise, search in the current
directory and its successive parents for a file so named.
Once a file is found, `change-log-default-name' is set locally in the
current buffer to the complete file name.
Optional arg BUFFER-FILE overrides `buffer-file-name'."
;; If we are called from a diff, first switch to the source buffer;
;; in order to respect buffer-local settings of change-log-default-name, etc.
(with-current-buffer (let ((buff (if (eq major-mode 'diff-mode)
(car (ignore-errors
(diff-find-source-location))))))
(if (buffer-live-p buff) buff
(current-buffer)))
;; If user specified a file name or if this buffer knows which one to use,
;; just use that.
(or file-name
(setq file-name (and change-log-default-name
(file-name-directory change-log-default-name)
change-log-default-name))
(progn
;; Chase links in the source file
;; and use the change log in the dir where it points.
(setq file-name (or (and (or buffer-file buffer-file-name)
(file-name-directory
(file-chase-links
(or buffer-file buffer-file-name))))
default-directory))
(if (file-directory-p file-name)
(setq file-name (expand-file-name (change-log-name) file-name)))
;; Chase links before visiting the file.
;; This makes it easier to use a single change log file
;; for several related directories.
(setq file-name (file-chase-links file-name))
(setq file-name (expand-file-name file-name))
;; Move up in the dir hierarchy till we find a change log file.
(let ((file1 file-name)
parent-dir)
(while (and (not (or (get-file-buffer file1) (file-exists-p file1)))
(progn (setq parent-dir
(file-name-directory
(directory-file-name
(file-name-directory file1))))
;; Give up if we are already at the root dir.
(not (string= (file-name-directory file1)
parent-dir))))
;; Move up to the parent dir and try again.
(setq file1 (expand-file-name
(file-name-nondirectory (change-log-name))
parent-dir)))
;; If we found a change log in a parent, use that.
(if (or (get-file-buffer file1) (file-exists-p file1))
(setq file-name file1)))))
;; Make a local variable in this buffer so we needn't search again.
(set (make-local-variable 'change-log-default-name) file-name))
file-name)
(defun add-log-file-name (buffer-file log-file)
;; Never want to add a change log entry for the ChangeLog file itself.
(unless (or (null buffer-file) (string= buffer-file log-file))
(if add-log-file-name-function
(funcall add-log-file-name-function buffer-file)
(setq buffer-file
(file-relative-name buffer-file (file-name-directory log-file)))
;; If we have a backup file, it's presumably because we're
;; comparing old and new versions (e.g. for deleted
;; functions) and we'll want to use the original name.
(if (backup-file-name-p buffer-file)
(file-name-sans-versions buffer-file)
buffer-file))))
;;;###autoload
(defun add-change-log-entry (&optional whoami file-name other-window new-entry
put-new-entry-on-new-line)
"Find change log file, and add an entry for today and an item for this file.
Optional arg WHOAMI (interactive prefix) non-nil means prompt for user
name and email (stored in `add-log-full-name' and `add-log-mailing-address').
Second arg FILE-NAME is file name of the change log.
If nil, use the value of `change-log-default-name'.
Third arg OTHER-WINDOW non-nil means visit in other window.
Fourth arg NEW-ENTRY non-nil means always create a new entry at the front;
never append to an existing entry. Option `add-log-keep-changes-together'
otherwise affects whether a new entry is created.
Fifth arg PUT-NEW-ENTRY-ON-NEW-LINE non-nil means that if a new
entry is created, put it on a new line by itself, do not put it
after a comma on an existing line.
Option `add-log-always-start-new-record' non-nil means always create a
new record, even when the last record was made on the same date and by
the same person.
The change log file can start with a copyright notice and a copying
permission notice. The first blank line indicates the end of these
notices.
Today's date is calculated according to `add-log-time-zone-rule' if
non-nil, otherwise in local time."
(interactive (list current-prefix-arg
(prompt-for-change-log-name)))
(let* ((defun (add-log-current-defun))
(version (and change-log-version-info-enabled
(change-log-version-number-search)))
(buf-file-name (if add-log-buffer-file-name-function
(funcall add-log-buffer-file-name-function)
buffer-file-name))
(buffer-file (if buf-file-name (expand-file-name buf-file-name)))
(file-name (expand-file-name (find-change-log file-name buffer-file)))
;; Set ITEM to the file name to use in the new item.
(item (add-log-file-name buffer-file file-name)))
(unless (equal file-name buffer-file-name)
(if (or other-window (window-dedicated-p (selected-window)))
(find-file-other-window file-name)
(find-file file-name)))
(or (derived-mode-p 'change-log-mode)
(change-log-mode))
(undo-boundary)
(goto-char (point-min))
(let ((full-name (or add-log-full-name (user-full-name)))
(mailing-address (or add-log-mailing-address user-mail-address)))
(when whoami
(setq full-name (read-string "Full name: " full-name))
;; Note that some sites have room and phone number fields in
;; full name which look silly when inserted. Rather than do
;; anything about that here, let user give prefix argument so that
;; s/he can edit the full name field in prompter if s/he wants.
(setq mailing-address
(read-string "Mailing address: " mailing-address)))
;; If file starts with a copyright and permission notice, skip them.
;; Assume they end at first blank line.
(when (looking-at "Copyright")
(search-forward "\n\n")
(skip-chars-forward "\n"))
;; Advance into first entry if it is usable; else make new one.
(let ((new-entries
(mapcar (lambda (addr)
(concat
(if (stringp add-log-time-zone-rule)
(let ((tz (getenv "TZ")))
(unwind-protect
(progn
(set-time-zone-rule add-log-time-zone-rule)
(funcall add-log-time-format))
(set-time-zone-rule tz)))
(funcall add-log-time-format))
" " full-name
" <" addr ">"))
(if (consp mailing-address)
mailing-address
(list mailing-address)))))
(if (and (not add-log-always-start-new-record)
(let ((hit nil))
(dolist (entry new-entries hit)
(when (looking-at (regexp-quote entry))
(setq hit t)))))
(forward-line 1)
(insert (nth (random (length new-entries))
new-entries)
(if use-hard-newlines hard-newline "\n")
(if use-hard-newlines hard-newline "\n"))
(forward-line -1))))
;; Determine where we should stop searching for a usable
;; item to add to, within this entry.
(let ((bound
(save-excursion
(if (looking-at "\n*[^\n* \t]")
(skip-chars-forward "\n")
(if add-log-keep-changes-together
(forward-page) ; page delimits entries for date
(forward-paragraph))) ; paragraph delimits entries for file
(point))))
;; Now insert the new line for this item.
(cond ((re-search-forward "^\\s *\\*\\s *$" bound t)
;; Put this file name into the existing empty item.
(if item
(insert item)))
((and (not new-entry)
(let (case-fold-search)
(re-search-forward
(concat (regexp-quote (concat "* " item))
;; Don't accept `foo.bar' when
;; looking for `foo':
"\\(\\s \\|[(),:]\\)")
bound t)))
;; Add to the existing item for the same file.
(re-search-forward "^\\s *$\\|^\\s \\*")
(goto-char (match-beginning 0))
;; Delete excess empty lines; make just 2.
(while (and (not (eobp)) (looking-at "^\\s *$"))
(delete-region (point) (line-beginning-position 2)))
(insert (if use-hard-newlines hard-newline "\n")
(if use-hard-newlines hard-newline "\n"))
(forward-line -2)
(indent-relative-maybe))
(t
;; Make a new item.
(while (looking-at "\\sW")
(forward-line 1))
(while (and (not (eobp)) (looking-at "^\\s *$"))
(delete-region (point) (line-beginning-position 2)))
(insert (if use-hard-newlines hard-newline "\n")
(if use-hard-newlines hard-newline "\n")
(if use-hard-newlines hard-newline "\n"))
(forward-line -2)
(indent-to left-margin)
(insert "* ")
(if item (insert item)))))
;; Now insert the function name, if we have one.
;; Point is at the item for this file,
;; either at the end of the line or at the first blank line.
(if (not defun)
;; No function name, so put in a colon unless we have just a star.
(unless (save-excursion
(beginning-of-line 1)
(looking-at "\\s *\\(\\*\\s *\\)?$"))
(insert ": ")
(if version (insert version ?\s)))
;; Make it easy to get rid of the function name.
(undo-boundary)
(unless (save-excursion
(beginning-of-line 1)
(looking-at "\\s *$"))
(insert ?\s))
;; See if the prev function name has a message yet or not.
;; If not, merge the two items.
(let ((pos (point-marker)))
(skip-syntax-backward " ")
(skip-chars-backward "):")
(if (and (not put-new-entry-on-new-line)
(looking-at "):")
(let ((pos (save-excursion (backward-sexp 1) (point))))
(when (equal (buffer-substring pos (point)) defun)
(delete-region pos (point)))
(> fill-column (+ (current-column) (length defun) 4))))
(progn (skip-chars-backward ", ")
(delete-region (point) pos)
(unless (memq (char-before) '(?\()) (insert ", ")))
(when (and (not put-new-entry-on-new-line) (looking-at "):"))
(delete-region (+ 1 (point)) (line-end-position)))
(goto-char pos)
(insert "("))
(set-marker pos nil))
(insert defun "): ")
(if version (insert version ?\s)))))
;;;###autoload
(defun add-change-log-entry-other-window (&optional whoami file-name)
"Find change log file in other window and add entry and item.
This is just like `add-change-log-entry' except that it displays
the change log file in another window."
(interactive (if current-prefix-arg
(list current-prefix-arg
(prompt-for-change-log-name))))
(add-change-log-entry whoami file-name t))
(defvar change-log-indent-text 0)
(defun change-log-fill-parenthesized-list ()
;; Fill parenthesized lists of names according to GNU standards.
;; * file-name.ext (very-long-foo, very-long-bar, very-long-foobar):
;; should be filled as
;; * file-name.ext (very-long-foo, very-long-bar)
;; (very-long-foobar):
(save-excursion
(end-of-line 0)
(skip-chars-backward " \t")
(when (and (equal (char-before) ?\,)
(> (point) (1+ (point-min))))
(condition-case nil
(when (save-excursion
(and (prog2
(up-list -1)
(equal (char-after) ?\()
(skip-chars-backward " \t"))
(or (bolp)
;; Skip everything but a whitespace or asterisk.
(and (not (zerop (skip-chars-backward "^ \t\n*")))
(skip-chars-backward " \t")
;; We want one asterisk here.
(= (skip-chars-backward "*") -1)
(skip-chars-backward " \t")
(bolp)))))
;; Delete the comma.
(delete-char -1)
;; Close list on previous line.
(insert ")")
(skip-chars-forward " \t\n")
;; Start list on new line.
(insert-before-markers "("))
(error nil)))))
(defun change-log-indent ()
(change-log-fill-parenthesized-list)
(let* ((indent
(save-excursion
(beginning-of-line)
(skip-chars-forward " \t")
(cond
((and (looking-at "\\(.*\\) [^ \n].*[^ \n] <.*>\\(?: +(.*)\\)? *$")
;; Matching the output of add-log-time-format is difficult,
;; but I'll get it has at least two adjacent digits.
(string-match "[[:digit:]][[:digit:]]" (match-string 1)))
0)
((looking-at "[^*(]")
(+ (current-left-margin) change-log-indent-text))
(t (current-left-margin)))))
(pos (save-excursion (indent-line-to indent) (point))))
(if (> pos (point)) (goto-char pos))))
(defvar smerge-resolve-function)
(defvar copyright-at-end-flag)
;;;###autoload
(define-derived-mode change-log-mode text-mode "Change Log"
"Major mode for editing change logs; like Indented Text mode.
Prevents numeric backups and sets `left-margin' to 8 and `fill-column' to 74.
New log entries are usually made with \\[add-change-log-entry] or \\[add-change-log-entry-other-window].
Each entry behaves as a paragraph, and the entries for one day as a page.
Runs `change-log-mode-hook'.
\n\\{change-log-mode-map}"
(setq left-margin 8
fill-column 74
indent-tabs-mode t
tab-width 8
show-trailing-whitespace t)
(set (make-local-variable 'fill-paragraph-function)
'change-log-fill-paragraph)
;; Avoid that filling leaves behind a single "*" on a line.
(add-hook 'fill-nobreak-predicate
'(lambda ()
(looking-back "^\\s *\\*\\s *" (line-beginning-position)))
nil t)
(set (make-local-variable 'indent-line-function) 'change-log-indent)
(set (make-local-variable 'tab-always-indent) nil)
(set (make-local-variable 'copyright-at-end-flag) t)
;; We really do want "^" in paragraph-start below: it is only the
;; lines that begin at column 0 (despite the left-margin of 8) that
;; we are looking for. Adding `* ' allows eliding the blank line
;; between entries for different files.
(set (make-local-variable 'paragraph-start) "\\s *$\\|\f\\|^\\<")
(set (make-local-variable 'paragraph-separate) paragraph-start)
;; Match null string on the date-line so that the date-line
;; is grouped with what follows.
(set (make-local-variable 'page-delimiter) "^\\<\\|^\f")
(set (make-local-variable 'version-control) 'never)
(set (make-local-variable 'smerge-resolve-function)
'change-log-resolve-conflict)
(set (make-local-variable 'adaptive-fill-regexp) "\\s *")
(set (make-local-variable 'font-lock-defaults)
'(change-log-font-lock-keywords t nil nil backward-paragraph))
(set (make-local-variable 'multi-isearch-next-buffer-function)
'change-log-next-buffer)
(set (make-local-variable 'beginning-of-defun-function)
'change-log-beginning-of-defun)
(set (make-local-variable 'end-of-defun-function)
'change-log-end-of-defun)
;; next-error function glue
(setq next-error-function 'change-log-next-error)
(setq next-error-last-buffer (current-buffer)))
(defun change-log-next-buffer (&optional buffer wrap)
"Return the next buffer in the series of ChangeLog file buffers.
This function is used for multiple buffers isearch.
A sequence of buffers is formed by ChangeLog files with decreasing
numeric file name suffixes in the directory of the initial ChangeLog
file were isearch was started."
(let* ((name (change-log-name))
(files (cons name (sort (file-expand-wildcards
(concat name "[-.][0-9]*"))
(lambda (a b)
;; The file's extension may not have a valid
;; version form (e.g. VC backup revisions).
(ignore-errors
(version< (substring b (length name))
(substring a (length name))))))))
(files (if isearch-forward files (reverse files))))
(find-file-noselect
(if wrap
(car files)
(cadr (member (file-name-nondirectory (buffer-file-name buffer))
files))))))
;; It might be nice to have a general feature to replace this. The idea I
;; have is a variable giving a regexp matching text which should not be
;; moved from bol by filling. change-log-mode would set this to "^\\s *\\s(".
;; But I don't feel up to implementing that today.
(defun change-log-fill-paragraph (&optional justify)
"Fill the paragraph, but preserve open parentheses at beginning of lines.
Prefix arg means justify as well."
(interactive "P")
(let ((end (progn (forward-paragraph) (point)))
(beg (progn (backward-paragraph) (point)))
;; Add lines starting with whitespace followed by a left paren or an
;; asterisk.
(paragraph-start (concat paragraph-start "\\|\\s *\\(?:\\s(\\|\\*\\)"))
;; Make sure we call `change-log-indent'.
(fill-indent-according-to-mode t))
(fill-region beg end justify)
t))
\f
(defcustom add-log-current-defun-header-regexp
"^\\([[:upper:]][[:upper:]_ ]*[[:upper:]_]\\|[-_[:alpha:]]+\\)[ \t]*[:=]"
"Heuristic regexp used by `add-log-current-defun' for unknown major modes.
The regular expression's submatch 1 is used for the text in '(parenthesis)'."
text in '(parentheses)'."
:type 'regexp
:group 'change-log)
;;;###autoload
(defvar add-log-lisp-like-modes
'(emacs-lisp-mode lisp-mode scheme-mode dsssl-mode lisp-interaction-mode)
"*Modes that look like Lisp to `add-log-current-defun'.")
;;;###autoload
(defvar add-log-c-like-modes
'(c-mode c++-mode c++-c-mode objc-mode)
"*Modes that look like C to `add-log-current-defun'.")
;;;###autoload
(defvar add-log-tex-like-modes
'(TeX-mode plain-TeX-mode LaTeX-mode tex-mode)
"*Modes that look like TeX to `add-log-current-defun'.")
(declare-function c-cpp-define-name "cc-cmds" ())
(declare-function c-defun-name "cc-cmds" ())
;;;###autoload
(defun add-log-current-defun ()
"Return name of function definition point is in, or nil.
Understands C, Lisp, LaTeX (\"functions\" are chapters, sections, ...),
Texinfo (@node titles) and Perl.
Other modes are handled by a heuristic that looks in the 10K before
point for uppercase headings starting in the first column or
identifiers followed by `:' or `='. See variables
`add-log-current-defun-header-regexp' and
`add-log-current-defun-function'.
Has a preference of looking backwards."
(condition-case nil
(save-excursion
(let ((location (point)))
(cond (add-log-current-defun-function
(funcall add-log-current-defun-function))
((apply 'derived-mode-p add-log-lisp-like-modes)
;; If we are now precisely at the beginning of a defun,
;; make sure beginning-of-defun finds that one
;; rather than the previous one.
(or (eobp) (forward-char 1))
(beginning-of-defun)
;; Make sure we are really inside the defun found,
;; not after it.
(when (and (looking-at "\\s(")
(progn (end-of-defun)
(< location (point)))
(progn (forward-sexp -1)
(>= location (point))))
(if (looking-at "\\s(")
(forward-char 1))
;; Skip the defining construct name, typically "defun"
;; or "defvar".
(forward-sexp 1)
;; The second element is usually a symbol being defined.
;; If it is not, use the first symbol in it.
(skip-chars-forward " \t\n'(")
(buffer-substring-no-properties (point)
(progn (forward-sexp 1)
(point)))))
((apply 'derived-mode-p add-log-c-like-modes)
(or (c-cpp-define-name)
(c-defun-name)))
((memq major-mode add-log-tex-like-modes)
(if (re-search-backward
"\\\\\\(sub\\)*\\(section\\|paragraph\\|chapter\\)"
nil t)
(progn
(goto-char (match-beginning 0))
(buffer-substring-no-properties
(1+ (point)) ; without initial backslash
(line-end-position)))))
((derived-mode-p 'texinfo-mode)
(if (re-search-backward "^@node[ \t]+\\([^,\n]+\\)" nil t)
(match-string-no-properties 1)))
((derived-mode-p 'perl-mode 'cperl-mode)
(if (re-search-backward "^sub[ \t]+\\([^({ \t\n]+\\)" nil t)
(match-string-no-properties 1)))
;; Emacs's autoconf-mode installs its own
;; `add-log-current-defun-function'. This applies to
;; a different mode apparently for editing .m4
;; autoconf source.
((derived-mode-p 'autoconf-mode)
(if (re-search-backward
"^\\(\\(m4_\\)?define\\|A._DEFUN\\)(\\[?\\([A-Za-z0-9_]+\\)" nil t)
(match-string-no-properties 3)))
(t
;; If all else fails, try heuristics
(let (case-fold-search
result)
(end-of-line)
(when (re-search-backward
add-log-current-defun-header-regexp
(- (point) 10000)
t)
(setq result (or (match-string-no-properties 1)
(match-string-no-properties 0)))
;; Strip whitespace away
(when (string-match "\\([^ \t\n\r\f].*[^ \t\n\r\f]\\)"
result)
(setq result (match-string-no-properties 1 result)))
result))))))
(error nil)))
(defvar change-log-get-method-definition-md)
;; Subroutine used within change-log-get-method-definition.
;; Add the last match in the buffer to the end of `md',
;; followed by the string END; move to the end of that match.
(defun change-log-get-method-definition-1 (end)
(setq change-log-get-method-definition-md
(concat change-log-get-method-definition-md
(match-string 1)
end))
(goto-char (match-end 0)))
(defun change-log-get-method-definition ()
"For Objective C, return the method name if we are in a method."
(let ((change-log-get-method-definition-md "["))
(save-excursion
(if (re-search-backward "^@implementation\\s-*\\([A-Za-z_]*\\)" nil t)
(change-log-get-method-definition-1 " ")))
(save-excursion
(cond
((re-search-forward "^\\([-+]\\)[ \t\n\f\r]*\\(([^)]*)\\)?\\s-*" nil t)
(change-log-get-method-definition-1 "")
(while (not (looking-at "[{;]"))
(looking-at
"\\([A-Za-z_]*:?\\)\\s-*\\(([^)]*)\\)?[A-Za-z_]*[ \t\n\f\r]*")
(change-log-get-method-definition-1 ""))
(concat change-log-get-method-definition-md "]"))))))
\f
(defun change-log-sortable-date-at ()
"Return date of log entry in a consistent form for sorting.
Point is assumed to be at the start of the entry."
(require 'timezone)
(if (looking-at change-log-start-entry-re)
(let ((date (match-string-no-properties 0)))
(if date
(if (string-match "\\(....\\)-\\(..\\)-\\(..\\)\\s-+" date)
(concat (match-string 1 date) (match-string 2 date)
(match-string 3 date))
(condition-case nil
(timezone-make-date-sortable date)
(error nil)))))
(error "Bad date")))
(defun change-log-resolve-conflict ()
"Function to be used in `smerge-resolve-function'."
(save-excursion
(save-restriction
(narrow-to-region (match-beginning 0) (match-end 0))
(let ((mb1 (match-beginning 1))
(me1 (match-end 1))
(mb3 (match-beginning 3))
(me3 (match-end 3))
(tmp1 (generate-new-buffer " *changelog-resolve-1*"))
(tmp2 (generate-new-buffer " *changelog-resolve-2*")))
(unwind-protect
(let ((buf (current-buffer)))
(with-current-buffer tmp1
(change-log-mode)
(insert-buffer-substring buf mb1 me1))
(with-current-buffer tmp2
(change-log-mode)
(insert-buffer-substring buf mb3 me3)
;; Do the merge here instead of inside `buf' so as to be
;; more robust in case change-log-merge fails.
(change-log-merge tmp1))
(goto-char (point-max))
(delete-region (point-min)
(prog1 (point)
(insert-buffer-substring tmp2))))
(kill-buffer tmp1)
(kill-buffer tmp2))))))
;;;###autoload
(defun change-log-merge (other-log)
"Merge the contents of change log file OTHER-LOG with this buffer.
Both must be found in Change Log mode (since the merging depends on
the appropriate motion commands). OTHER-LOG can be either a file name
or a buffer.
Entries are inserted in chronological order. Both the current and
old-style time formats for entries are supported."
(interactive "*fLog file name to merge: ")
(if (not (derived-mode-p 'change-log-mode))
(error "Not in Change Log mode"))
(let ((other-buf (if (bufferp other-log) other-log
(find-file-noselect other-log)))
(buf (current-buffer))
date1 start end)
(save-excursion
(goto-char (point-min))
(set-buffer other-buf)
(goto-char (point-min))
(if (not (derived-mode-p 'change-log-mode))
(error "%s not found in Change Log mode" other-log))
;; Loop through all the entries in OTHER-LOG.
(while (not (eobp))
(setq date1 (change-log-sortable-date-at))
(setq start (point)
end (progn (forward-page) (point)))
;; Look for an entry in original buffer that isn't later.
(with-current-buffer buf
(while (and (not (eobp))
(string< date1 (change-log-sortable-date-at)))
(forward-page))
(if (not (eobp))
(insert-buffer-substring other-buf start end)
;; At the end of the original buffer, insert a newline to
;; separate entries and then the rest of the file being
;; merged.
(unless (or (bobp)
(and (= ?\n (char-before))
(or (<= (1- (point)) (point-min))
(= ?\n (char-before (1- (point)))))))
(insert (if use-hard-newlines hard-newline "\n")))
;; Move to the end of it to terminate outer loop.
(with-current-buffer other-buf
(goto-char (point-max)))
(insert-buffer-substring other-buf start)))))))
(defun change-log-beginning-of-defun ()
(re-search-backward change-log-start-entry-re nil 'move))
(defun change-log-end-of-defun ()
;; Look back and if there is no entry there it means we are before
;; the first ChangeLog entry, so go forward until finding one.
(unless (save-excursion (re-search-backward change-log-start-entry-re nil t))
(re-search-forward change-log-start-entry-re nil t))
;; In case we are at the end of log entry going forward a line will
;; make us find the next entry when searching. If we are inside of
;; an entry going forward a line will still keep the point inside
;; the same entry.
(forward-line 1)
;; In case we are at the beginning of an entry, move past it.
(when (looking-at change-log-start-entry-re)
(goto-char (match-end 0))
(forward-line 1))
;; Search for the start of the next log entry. Go to the end of the
;; buffer if we could not find a next entry.
(when (re-search-forward change-log-start-entry-re nil 'move)
(goto-char (match-beginning 0))
(forward-line -1)))
(provide 'add-log)
;; arch-tag: 81eee6fc-088f-4372-a37f-80ad9620e762
;;; add-log.el ends here
|