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1 ;;; add-log.el --- change log maintenance commands for Emacs
3 ;; Copyright (C) 1985, 1986, 1988, 1993, 1994, 1997, 1998, 2000, 2001,
4 ;; 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
6 ;; Maintainer: FSF
7 ;; Keywords: tools
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software; you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 3, or (at your option)
14 ;; any later version.
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 ;; Boston, MA 02110-1301, USA.
26 ;;; Commentary:
28 ;; This facility is documented in the Emacs Manual.
30 ;;; Code:
32 (eval-when-compile
33 (require 'timezone))
35 (defgroup change-log nil
36 "Change log maintenance."
37 :group 'tools
38 :link '(custom-manual "(emacs)Change Log")
39 :prefix "change-log-"
40 :prefix "add-log-")
43 (defcustom change-log-default-name nil
44 "*Name of a change log file for \\[add-change-log-entry]."
45 :type '(choice (const :tag "default" nil)
46 string)
47 :group 'change-log)
48 (put 'change-log-default-name 'safe-local-variable 'string-or-null-p)
50 (defcustom change-log-mode-hook nil
51 "Normal hook run by `change-log-mode'."
52 :type 'hook
53 :group 'change-log)
55 ;; Many modes set this variable, so avoid warnings.
56 ;;;###autoload
57 (defcustom add-log-current-defun-function nil
58 "*If non-nil, function to guess name of surrounding function.
59 It is used by `add-log-current-defun' in preference to built-in rules.
60 Returns function's name as a string, or nil if outside a function."
61 :type '(choice (const nil) function)
62 :group 'change-log)
64 ;;;###autoload
65 (defcustom add-log-full-name nil
66 "*Full name of user, for inclusion in ChangeLog daily headers.
67 This defaults to the value returned by the function `user-full-name'."
68 :type '(choice (const :tag "Default" nil)
69 string)
70 :group 'change-log)
72 ;;;###autoload
73 (defcustom add-log-mailing-address nil
74 "Email addresses of user, for inclusion in ChangeLog headers.
75 This defaults to the value of `user-mail-address'. In addition to
76 being a simple string, this value can also be a list. All elements
77 will be recognized as referring to the same user; when creating a new
78 ChangeLog entry, one element will be chosen at random."
79 :type '(choice (const :tag "Default" nil)
80 (string :tag "String")
81 (repeat :tag "List of Strings" string))
82 :group 'change-log)
84 (defcustom add-log-time-format 'add-log-iso8601-time-string
85 "Function that defines the time format.
86 For example, `add-log-iso8601-time-string', which gives the
87 date in international ISO 8601 format,
88 and `current-time-string' are two valid values."
89 :type '(radio (const :tag "International ISO 8601 format"
90 add-log-iso8601-time-string)
91 (const :tag "Old format, as returned by `current-time-string'"
92 current-time-string)
93 (function :tag "Other"))
94 :group 'change-log)
96 (defcustom add-log-keep-changes-together nil
97 "If non-nil, normally keep day's log entries for one file together.
99 Log entries for a given file made with \\[add-change-log-entry] or
100 \\[add-change-log-entry-other-window] will only be added to others \
101 for that file made
102 today if this variable is non-nil or that file comes first in today's
103 entries. Otherwise another entry for that file will be started. An
104 original log:
106 * foo (...): ...
107 * bar (...): change 1
109 in the latter case, \\[add-change-log-entry-other-window] in a \
110 buffer visiting `bar', yields:
112 * bar (...): -!-
113 * foo (...): ...
114 * bar (...): change 1
116 and in the former:
118 * foo (...): ...
119 * bar (...): change 1
120 (...): -!-
122 The NEW-ENTRY arg to `add-change-log-entry' can override the effect of
123 this variable."
124 :version "20.3"
125 :type 'boolean
126 :group 'change-log)
128 (defcustom add-log-always-start-new-record nil
129 "If non-nil, `add-change-log-entry' will always start a new record."
130 :version "22.1"
131 :type 'boolean
132 :group 'change-log)
134 (defcustom add-log-buffer-file-name-function nil
135 "If non-nil, function to call to identify the full filename of a buffer.
136 This function is called with no argument. If this is nil, the default is to
137 use `buffer-file-name'."
138 :type '(choice (const nil) function)
139 :group 'change-log)
141 (defcustom add-log-file-name-function nil
142 "If non-nil, function to call to identify the filename for a ChangeLog entry.
143 This function is called with one argument, the value of variable
144 `buffer-file-name' in that buffer. If this is nil, the default is to
145 use the file's name relative to the directory of the change log file."
146 :type '(choice (const nil) function)
147 :group 'change-log)
150 (defcustom change-log-version-info-enabled nil
151 "*If non-nil, enable recording version numbers with the changes."
152 :version "21.1"
153 :type 'boolean
154 :group 'change-log)
156 (defcustom change-log-version-number-regexp-list
157 (let ((re "\\([0-9]+\.[0-9.]+\\)"))
158 (list
159 ;; (defconst ad-version "2.15"
160 (concat "^(def[^ \t\n]+[ \t]+[^ \t\n][ \t]\"" re)
161 ;; Revision: pcl-cvs.el,v 1.72 1999/09/05 20:21:54 monnier Exp
162 (concat "^;+ *Revision: +[^ \t\n]+[ \t]+" re)))
163 "*List of regexps to search for version number.
164 The version number must be in group 1.
165 Note: The search is conducted only within 10%, at the beginning of the file."
166 :version "21.1"
167 :type '(repeat regexp)
168 :group 'change-log)
170 (defface change-log-date
171 '((t (:inherit font-lock-string-face)))
172 "Face used to highlight dates in date lines."
173 :version "21.1"
174 :group 'change-log)
175 ;; backward-compatibility alias
176 (put 'change-log-date-face 'face-alias 'change-log-date)
178 (defface change-log-name
179 '((t (:inherit font-lock-constant-face)))
180 "Face for highlighting author names."
181 :version "21.1"
182 :group 'change-log)
183 ;; backward-compatibility alias
184 (put 'change-log-name-face 'face-alias 'change-log-name)
186 (defface change-log-email
187 '((t (:inherit font-lock-variable-name-face)))
188 "Face for highlighting author email addresses."
189 :version "21.1"
190 :group 'change-log)
191 ;; backward-compatibility alias
192 (put 'change-log-email-face 'face-alias 'change-log-email)
194 (defface change-log-file
195 '((t (:inherit font-lock-function-name-face)))
196 "Face for highlighting file names."
197 :version "21.1"
198 :group 'change-log)
199 ;; backward-compatibility alias
200 (put 'change-log-file-face 'face-alias 'change-log-file)
202 (defface change-log-list
203 '((t (:inherit font-lock-keyword-face)))
204 "Face for highlighting parenthesized lists of functions or variables."
205 :version "21.1"
206 :group 'change-log)
207 ;; backward-compatibility alias
208 (put 'change-log-list-face 'face-alias 'change-log-list)
210 (defface change-log-conditionals
211 '((t (:inherit font-lock-variable-name-face)))
212 "Face for highlighting conditionals of the form `[...]'."
213 :version "21.1"
214 :group 'change-log)
215 ;; backward-compatibility alias
216 (put 'change-log-conditionals-face 'face-alias 'change-log-conditionals)
218 (defface change-log-function
219 '((t (:inherit font-lock-variable-name-face)))
220 "Face for highlighting items of the form `<....>'."
221 :version "21.1"
222 :group 'change-log)
223 ;; backward-compatibility alias
224 (put 'change-log-function-face 'face-alias 'change-log-function)
226 (defface change-log-acknowledgement
227 '((t (:inherit font-lock-comment-face)))
228 "Face for highlighting acknowledgments."
229 :version "21.1"
230 :group 'change-log)
231 ;; backward-compatibility alias
232 (put 'change-log-acknowledgement-face 'face-alias 'change-log-acknowledgement)
234 (defvar change-log-font-lock-keywords
235 '(;;
236 ;; Date lines, new (2000-01-01) and old (Sat Jan 1 00:00:00 2000) styles.
237 ;; Fixme: this regepx is just an approximate one and may match
238 ;; wrongly with a non-date line existing as a random note. In
239 ;; addition, using any kind of fixed setting like this doesn't
240 ;; work if a user customizes add-log-time-format.
241 ("^[0-9-]+ +\\|^\\(Sun\\|Mon\\|Tue\\|Wed\\|Thu\\|Fri\\|Sat\\) [A-z][a-z][a-z] [0-9:+ ]+"
242 (0 'change-log-date-face)
243 ;; Name and e-mail; some people put e-mail in parens, not angles.
244 ("\\([^<(]+?\\)[ \t]*[(<]\\([A-Za-z0-9_.+-]+@[A-Za-z0-9_.-]+\\)[>)]" nil nil
245 (1 'change-log-name)
246 (2 'change-log-email)))
248 ;; File names.
249 ("^\\( +\\|\t\\)\\* \\([^ ,:([\n]+\\)"
250 (2 'change-log-file)
251 ;; Possibly further names in a list:
252 ("\\=, \\([^ ,:([\n]+\\)" nil nil (1 'change-log-file))
253 ;; Possibly a parenthesized list of names:
254 ("\\= (\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)"
255 nil nil (1 'change-log-list))
256 ("\\=, *\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)"
257 nil nil (1 'change-log-list)))
259 ;; Function or variable names.
260 ("^\\( +\\|\t\\)(\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)"
261 (2 'change-log-list)
262 ("\\=, *\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)" nil nil
263 (1 'change-log-list)))
265 ;; Conditionals.
266 ("\\[!?\\([^]\n]+\\)\\]\\(:\\| (\\)" (1 'change-log-conditionals))
268 ;; Function of change.
269 ("<\\([^>\n]+\\)>\\(:\\| (\\)" (1 'change-log-function))
271 ;; Acknowledgements.
272 ;; Don't include plain "From" because that is vague;
273 ;; we want to encourage people to say something more specific.
274 ;; Note that the FSF does not use "Patches by"; our convention
275 ;; is to put the name of the author of the changes at the top
276 ;; of the change log entry.
277 ("\\(^\\( +\\|\t\\)\\| \\)\\(Patch\\(es\\)? by\\|Report\\(ed by\\| from\\)\\|Suggest\\(ed by\\|ion from\\)\\)"
278 3 'change-log-acknowledgement))
279 "Additional expressions to highlight in Change Log mode.")
281 (defvar change-log-mode-map
282 (let ((map (make-sparse-keymap)))
283 (define-key map [?\C-c ?\C-p] 'add-log-edit-prev-comment)
284 (define-key map [?\C-c ?\C-n] 'add-log-edit-next-comment)
285 map)
286 "Keymap for Change Log major mode.")
288 ;; It used to be called change-log-time-zone-rule but really should be
289 ;; called add-log-time-zone-rule since it's only used from add-log-* code.
290 (defvaralias 'change-log-time-zone-rule 'add-log-time-zone-rule)
291 (defvar add-log-time-zone-rule nil
292 "Time zone used for calculating change log time stamps.
293 It takes the same format as the TZ argument of `set-time-zone-rule'.
294 If nil, use local time.
295 If t, use universal time.")
296 (put 'add-log-time-zone-rule 'safe-local-variable
297 '(lambda (x) (or (booleanp x) (stringp x))))
299 (defun add-log-iso8601-time-zone (&optional time)
300 (let* ((utc-offset (or (car (current-time-zone time)) 0))
301 (sign (if (< utc-offset 0) ?- ?+))
302 (sec (abs utc-offset))
303 (ss (% sec 60))
304 (min (/ sec 60))
305 (mm (% min 60))
306 (hh (/ min 60)))
307 (format (cond ((not (zerop ss)) "%c%02d:%02d:%02d")
308 ((not (zerop mm)) "%c%02d:%02d")
309 (t "%c%02d"))
310 sign hh mm ss)))
312 (defvar add-log-iso8601-with-time-zone nil)
314 (defun add-log-iso8601-time-string ()
315 (let ((time (format-time-string "%Y-%m-%d"
316 nil (eq t add-log-time-zone-rule))))
317 (if add-log-iso8601-with-time-zone
318 (concat time " " (add-log-iso8601-time-zone))
319 time)))
321 (defun change-log-name ()
322 "Return (system-dependent) default name for a change log file."
323 (or change-log-default-name
324 (if (eq system-type 'vax-vms)
325 "$CHANGE_LOG$.TXT"
326 "ChangeLog")))
328 (defun add-log-edit-prev-comment (arg)
329 "Cycle backward through Log-Edit mode comment history.
330 With a numeric prefix ARG, go back ARG comments."
331 (interactive "*p")
332 (save-restriction
333 (narrow-to-region (point)
334 (if (memq last-command '(add-log-edit-prev-comment
335 add-log-edit-next-comment))
336 (mark) (point)))
337 (when (fboundp 'log-edit-previous-comment)
338 (log-edit-previous-comment arg)
339 (indent-region (point-min) (point-max))
340 (goto-char (point-min))
341 (unless (save-restriction (widen) (bolp))
342 (delete-region (point) (progn (skip-chars-forward " \t\n") (point))))
343 (set-mark (point-min))
344 (goto-char (point-max))
345 (delete-region (point) (progn (skip-chars-backward " \t\n") (point))))))
347 (defun add-log-edit-next-comment (arg)
348 "Cycle forward through Log-Edit mode comment history.
349 With a numeric prefix ARG, go back ARG comments."
350 (interactive "*p")
351 (add-log-edit-prev-comment (- arg)))
353 ;;;###autoload
354 (defun prompt-for-change-log-name ()
355 "Prompt for a change log name."
356 (let* ((default (change-log-name))
357 (name (expand-file-name
358 (read-file-name (format "Log file (default %s): " default)
359 nil default))))
360 ;; Handle something that is syntactically a directory name.
361 ;; Look for ChangeLog or whatever in that directory.
362 (if (string= (file-name-nondirectory name) "")
363 (expand-file-name (file-name-nondirectory default)
364 name)
365 ;; Handle specifying a file that is a directory.
366 (if (file-directory-p name)
367 (expand-file-name (file-name-nondirectory default)
368 (file-name-as-directory name))
369 name))))
371 (defun change-log-version-number-search ()
372 "Return version number of current buffer's file.
373 This is the value returned by `vc-workfile-version' or, if that is
374 nil, by matching `change-log-version-number-regexp-list'."
375 (let* ((size (buffer-size))
376 (limit
377 ;; The version number can be anywhere in the file, but
378 ;; restrict search to the file beginning: 10% should be
379 ;; enough to prevent some mishits.
381 ;; Apply percentage only if buffer size is bigger than
382 ;; approx 100 lines.
383 (if (> size (* 100 80)) (+ (point) (/ size 10)))))
384 (or (and buffer-file-name (vc-workfile-version buffer-file-name))
385 (save-restriction
386 (widen)
387 (let ((regexps change-log-version-number-regexp-list)
388 version)
389 (while regexps
390 (save-excursion
391 (goto-char (point-min))
392 (when (re-search-forward (pop regexps) limit t)
393 (setq version (match-string 1)
394 regexps nil))))
395 version)))))
398 ;;;###autoload
399 (defun find-change-log (&optional file-name buffer-file)
400 "Find a change log file for \\[add-change-log-entry] and return the name.
402 Optional arg FILE-NAME specifies the file to use.
403 If FILE-NAME is nil, use the value of `change-log-default-name'.
404 If `change-log-default-name' is nil, behave as though it were 'ChangeLog'
405 \(or whatever we use on this operating system).
407 If `change-log-default-name' contains a leading directory component, then
408 simply find it in the current directory. Otherwise, search in the current
409 directory and its successive parents for a file so named.
411 Once a file is found, `change-log-default-name' is set locally in the
412 current buffer to the complete file name.
413 Optional arg BUFFER-FILE overrides `buffer-file-name'."
414 ;; If user specified a file name or if this buffer knows which one to use,
415 ;; just use that.
416 (or file-name
417 (setq file-name (and change-log-default-name
418 (file-name-directory change-log-default-name)
419 change-log-default-name))
420 (progn
421 ;; Chase links in the source file
422 ;; and use the change log in the dir where it points.
423 (setq file-name (or (and (or buffer-file buffer-file-name)
424 (file-name-directory
425 (file-chase-links
426 (or buffer-file buffer-file-name))))
427 default-directory))
428 (if (file-directory-p file-name)
429 (setq file-name (expand-file-name (change-log-name) file-name)))
430 ;; Chase links before visiting the file.
431 ;; This makes it easier to use a single change log file
432 ;; for several related directories.
433 (setq file-name (file-chase-links file-name))
434 (setq file-name (expand-file-name file-name))
435 ;; Move up in the dir hierarchy till we find a change log file.
436 (let ((file1 file-name)
437 parent-dir)
438 (while (and (not (or (get-file-buffer file1) (file-exists-p file1)))
439 (progn (setq parent-dir
440 (file-name-directory
441 (directory-file-name
442 (file-name-directory file1))))
443 ;; Give up if we are already at the root dir.
444 (not (string= (file-name-directory file1)
445 parent-dir))))
446 ;; Move up to the parent dir and try again.
447 (setq file1 (expand-file-name
448 (file-name-nondirectory (change-log-name))
449 parent-dir)))
450 ;; If we found a change log in a parent, use that.
451 (if (or (get-file-buffer file1) (file-exists-p file1))
452 (setq file-name file1)))))
453 ;; Make a local variable in this buffer so we needn't search again.
454 (set (make-local-variable 'change-log-default-name) file-name)
455 file-name)
457 (defun add-log-file-name (buffer-file log-file)
458 ;; Never want to add a change log entry for the ChangeLog file itself.
459 (unless (or (null buffer-file) (string= buffer-file log-file))
460 (if add-log-file-name-function
461 (funcall add-log-file-name-function buffer-file)
462 (setq buffer-file
463 (if (string-match
464 (concat "^" (regexp-quote (file-name-directory log-file)))
465 buffer-file)
466 (substring buffer-file (match-end 0))
467 (file-name-nondirectory buffer-file)))
468 ;; If we have a backup file, it's presumably because we're
469 ;; comparing old and new versions (e.g. for deleted
470 ;; functions) and we'll want to use the original name.
471 (if (backup-file-name-p buffer-file)
472 (file-name-sans-versions buffer-file)
473 buffer-file))))
475 ;;;###autoload
476 (defun add-change-log-entry (&optional whoami file-name other-window new-entry)
477 "Find change log file, and add an entry for today and an item for this file.
478 Optional arg WHOAMI (interactive prefix) non-nil means prompt for user
479 name and email (stored in `add-log-full-name' and `add-log-mailing-address').
481 Second arg FILE-NAME is file name of the change log.
482 If nil, use the value of `change-log-default-name'.
484 Third arg OTHER-WINDOW non-nil means visit in other window.
486 Fourth arg NEW-ENTRY non-nil means always create a new entry at the front;
487 never append to an existing entry. Option `add-log-keep-changes-together'
488 otherwise affects whether a new entry is created.
490 Option `add-log-always-start-new-record' non-nil means always create a
491 new record, even when the last record was made on the same date and by
492 the same person.
494 The change log file can start with a copyright notice and a copying
495 permission notice. The first blank line indicates the end of these
496 notices.
498 Today's date is calculated according to `add-log-time-zone-rule' if
499 non-nil, otherwise in local time."
500 (interactive (list current-prefix-arg
501 (prompt-for-change-log-name)))
502 (let* ((defun (add-log-current-defun))
503 (version (and change-log-version-info-enabled
504 (change-log-version-number-search)))
505 (buf-file-name (if add-log-buffer-file-name-function
506 (funcall add-log-buffer-file-name-function)
507 buffer-file-name))
508 (buffer-file (if buf-file-name (expand-file-name buf-file-name)))
509 (file-name (expand-file-name (find-change-log file-name buffer-file)))
510 ;; Set ITEM to the file name to use in the new item.
511 (item (add-log-file-name buffer-file file-name))
512 bound full-name mailing-address)
514 (if whoami
515 (progn
516 (setq full-name (read-string "Full name: "
517 (or add-log-full-name (user-full-name))))
518 ;; Note that some sites have room and phone number fields in
519 ;; full name which look silly when inserted. Rather than do
520 ;; anything about that here, let user give prefix argument so that
521 ;; s/he can edit the full name field in prompter if s/he wants.
522 (setq mailing-address
523 (read-string "Mailing address: "
524 (or add-log-mailing-address user-mail-address)))))
526 (unless (equal file-name buffer-file-name)
527 (if (or other-window (window-dedicated-p (selected-window)))
528 (find-file-other-window file-name)
529 (find-file file-name)))
530 (or (eq major-mode 'change-log-mode)
531 (change-log-mode))
532 (undo-boundary)
533 (goto-char (point-min))
535 (or full-name
536 (setq full-name (or add-log-full-name (user-full-name))))
537 (or mailing-address
538 (setq mailing-address (or add-log-mailing-address user-mail-address)))
540 ;; If file starts with a copyright and permission notice, skip them.
541 ;; Assume they end at first blank line.
542 (when (looking-at "Copyright")
543 (search-forward "\n\n")
544 (skip-chars-forward "\n"))
546 ;; Advance into first entry if it is usable; else make new one.
547 (let ((new-entries
548 (mapcar (lambda (addr)
549 (concat
550 (if (stringp add-log-time-zone-rule)
551 (let ((tz (getenv "TZ")))
552 (unwind-protect
553 (progn
554 (set-time-zone-rule add-log-time-zone-rule)
555 (funcall add-log-time-format))
556 (set-time-zone-rule tz)))
557 (funcall add-log-time-format))
558 " " full-name
559 " <" addr ">"))
560 (if (consp mailing-address)
561 mailing-address
562 (list mailing-address)))))
563 (if (and (not add-log-always-start-new-record)
564 (let ((hit nil))
565 (dolist (entry new-entries hit)
566 (when (looking-at (regexp-quote entry))
567 (setq hit t)))))
568 (forward-line 1)
569 (insert (nth (random (length new-entries))
570 new-entries)
571 (if use-hard-newlines hard-newline "\n")
572 (if use-hard-newlines hard-newline "\n"))
573 (forward-line -1)))
575 ;; Determine where we should stop searching for a usable
576 ;; item to add to, within this entry.
577 (setq bound
578 (save-excursion
579 (if (looking-at "\n*[^\n* \t]")
580 (skip-chars-forward "\n")
581 (if add-log-keep-changes-together
582 (forward-page) ; page delimits entries for date
583 (forward-paragraph))) ; paragraph delimits entries for file
584 (point)))
586 ;; Now insert the new line for this item.
587 (cond ((re-search-forward "^\\s *\\*\\s *$" bound t)
588 ;; Put this file name into the existing empty item.
589 (if item
590 (insert item)))
591 ((and (not new-entry)
592 (let (case-fold-search)
593 (re-search-forward
594 (concat (regexp-quote (concat "* " item))
595 ;; Don't accept `foo.bar' when
596 ;; looking for `foo':
597 "\\(\\s \\|[(),:]\\)")
598 bound t)))
599 ;; Add to the existing item for the same file.
600 (re-search-forward "^\\s *$\\|^\\s \\*")
601 (goto-char (match-beginning 0))
602 ;; Delete excess empty lines; make just 2.
603 (while (and (not (eobp)) (looking-at "^\\s *$"))
604 (delete-region (point) (line-beginning-position 2)))
605 (insert (if use-hard-newlines hard-newline "\n")
606 (if use-hard-newlines hard-newline "\n"))
607 (forward-line -2)
608 (indent-relative-maybe))
610 ;; Make a new item.
611 (while (looking-at "\\sW")
612 (forward-line 1))
613 (while (and (not (eobp)) (looking-at "^\\s *$"))
614 (delete-region (point) (line-beginning-position 2)))
615 (insert (if use-hard-newlines hard-newline "\n")
616 (if use-hard-newlines hard-newline "\n")
617 (if use-hard-newlines hard-newline "\n"))
618 (forward-line -2)
619 (indent-to left-margin)
620 (insert "* ")
621 (if item (insert item))))
622 ;; Now insert the function name, if we have one.
623 ;; Point is at the item for this file,
624 ;; either at the end of the line or at the first blank line.
625 (if (not defun)
626 ;; No function name, so put in a colon unless we have just a star.
627 (unless (save-excursion
628 (beginning-of-line 1)
629 (looking-at "\\s *\\(\\*\\s *\\)?$"))
630 (insert ": ")
631 (if version (insert version ?\s)))
632 ;; Make it easy to get rid of the function name.
633 (undo-boundary)
634 (unless (save-excursion
635 (beginning-of-line 1)
636 (looking-at "\\s *$"))
637 (insert ?\s))
638 ;; See if the prev function name has a message yet or not.
639 ;; If not, merge the two items.
640 (let ((pos (point-marker)))
641 (skip-syntax-backward " ")
642 (skip-chars-backward "):")
643 (if (and (looking-at "):")
644 (let ((pos (save-excursion (backward-sexp 1) (point))))
645 (when (equal (buffer-substring pos (point)) defun)
646 (delete-region pos (point)))
647 (> fill-column (+ (current-column) (length defun) 4))))
648 (progn (skip-chars-backward ", ")
649 (delete-region (point) pos)
650 (unless (memq (char-before) '(?\()) (insert ", ")))
651 (if (looking-at "):")
652 (delete-region (+ 1 (point)) (line-end-position)))
653 (goto-char pos)
654 (insert "("))
655 (set-marker pos nil))
656 (insert defun "): ")
657 (if version (insert version ?\s)))))
659 ;;;###autoload
660 (defun add-change-log-entry-other-window (&optional whoami file-name)
661 "Find change log file in other window and add entry and item.
662 This is just like `add-change-log-entry' except that it displays
663 the change log file in another window."
664 (interactive (if current-prefix-arg
665 (list current-prefix-arg
666 (prompt-for-change-log-name))))
667 (add-change-log-entry whoami file-name t))
669 (defvar change-log-indent-text 0)
671 (defun change-log-indent ()
672 (let* ((indent
673 (save-excursion
674 (beginning-of-line)
675 (skip-chars-forward " \t")
676 (cond
677 ((and (looking-at "\\(.*\\) [^ \n].*[^ \n] <.*>\\(?: +(.*)\\)? *$")
678 ;; Matching the output of add-log-time-format is difficult,
679 ;; but I'll get it has at least two adjacent digits.
680 (string-match "[[:digit:]][[:digit:]]" (match-string 1)))
682 ((looking-at "[^*(]")
683 (+ (current-left-margin) change-log-indent-text))
684 (t (current-left-margin)))))
685 (pos (save-excursion (indent-line-to indent) (point))))
686 (if (> pos (point)) (goto-char pos))))
689 (defvar smerge-resolve-function)
691 ;;;###autoload
692 (define-derived-mode change-log-mode text-mode "Change Log"
693 "Major mode for editing change logs; like Indented Text Mode.
694 Prevents numeric backups and sets `left-margin' to 8 and `fill-column' to 74.
695 New log entries are usually made with \\[add-change-log-entry] or \\[add-change-log-entry-other-window].
696 Each entry behaves as a paragraph, and the entries for one day as a page.
697 Runs `change-log-mode-hook'.
698 \\{change-log-mode-map}"
699 (setq left-margin 8
700 fill-column 74
701 indent-tabs-mode t
702 tab-width 8)
703 (set (make-local-variable 'fill-paragraph-function)
704 'change-log-fill-paragraph)
705 (set (make-local-variable 'indent-line-function) 'change-log-indent)
706 (set (make-local-variable 'tab-always-indent) nil)
707 ;; We really do want "^" in paragraph-start below: it is only the
708 ;; lines that begin at column 0 (despite the left-margin of 8) that
709 ;; we are looking for. Adding `* ' allows eliding the blank line
710 ;; between entries for different files.
711 (set (make-local-variable 'paragraph-start) "\\s *$\\|\f\\|^\\<")
712 (set (make-local-variable 'paragraph-separate) paragraph-start)
713 ;; Match null string on the date-line so that the date-line
714 ;; is grouped with what follows.
715 (set (make-local-variable 'page-delimiter) "^\\<\\|^\f")
716 (set (make-local-variable 'version-control) 'never)
717 (set (make-local-variable 'smerge-resolve-function)
718 'change-log-resolve-conflict)
719 (set (make-local-variable 'adaptive-fill-regexp) "\\s *")
720 (set (make-local-variable 'font-lock-defaults)
721 '(change-log-font-lock-keywords t nil nil backward-paragraph)))
723 ;; It might be nice to have a general feature to replace this. The idea I
724 ;; have is a variable giving a regexp matching text which should not be
725 ;; moved from bol by filling. change-log-mode would set this to "^\\s *\\s(".
726 ;; But I don't feel up to implementing that today.
727 (defun change-log-fill-paragraph (&optional justify)
728 "Fill the paragraph, but preserve open parentheses at beginning of lines.
729 Prefix arg means justify as well."
730 (interactive "P")
731 (let ((end (progn (forward-paragraph) (point)))
732 (beg (progn (backward-paragraph) (point)))
733 (paragraph-start (concat paragraph-start "\\|\\s *\\s(")))
734 (fill-region beg end justify)
737 (defcustom add-log-current-defun-header-regexp
738 "^\\([[:upper:]][[:upper:]_ ]*[[:upper:]_]\\|[-_[:alpha:]]+\\)[ \t]*[:=]"
739 "Heuristic regexp used by `add-log-current-defun' for unknown major modes."
740 :type 'regexp
741 :group 'change-log)
743 ;;;###autoload
744 (defvar add-log-lisp-like-modes
745 '(emacs-lisp-mode lisp-mode scheme-mode dsssl-mode lisp-interaction-mode)
746 "*Modes that look like Lisp to `add-log-current-defun'.")
748 ;;;###autoload
749 (defvar add-log-c-like-modes
750 '(c-mode c++-mode c++-c-mode objc-mode)
751 "*Modes that look like C to `add-log-current-defun'.")
753 ;;;###autoload
754 (defvar add-log-tex-like-modes
755 '(TeX-mode plain-TeX-mode LaTeX-mode plain-tex-mode latex-mode)
756 "*Modes that look like TeX to `add-log-current-defun'.")
758 ;;;###autoload
759 (defun add-log-current-defun ()
760 "Return name of function definition point is in, or nil.
762 Understands C, Lisp, LaTeX (\"functions\" are chapters, sections, ...),
763 Texinfo (@node titles) and Perl.
765 Other modes are handled by a heuristic that looks in the 10K before
766 point for uppercase headings starting in the first column or
767 identifiers followed by `:' or `='. See variables
768 `add-log-current-defun-header-regexp' and
769 `add-log-current-defun-function'.
771 Has a preference of looking backwards."
772 (condition-case nil
773 (save-excursion
774 (let ((location (point)))
775 (cond (add-log-current-defun-function
776 (funcall add-log-current-defun-function))
777 ((memq major-mode add-log-lisp-like-modes)
778 ;; If we are now precisely at the beginning of a defun,
779 ;; make sure beginning-of-defun finds that one
780 ;; rather than the previous one.
781 (or (eobp) (forward-char 1))
782 (beginning-of-defun)
783 ;; Make sure we are really inside the defun found,
784 ;; not after it.
785 (when (and (looking-at "\\s(")
786 (progn (end-of-defun)
787 (< location (point)))
788 (progn (forward-sexp -1)
789 (>= location (point))))
790 (if (looking-at "\\s(")
791 (forward-char 1))
792 ;; Skip the defining construct name, typically "defun"
793 ;; or "defvar".
794 (forward-sexp 1)
795 ;; The second element is usually a symbol being defined.
796 ;; If it is not, use the first symbol in it.
797 (skip-chars-forward " \t\n'(")
798 (buffer-substring-no-properties (point)
799 (progn (forward-sexp 1)
800 (point)))))
801 ((memq major-mode add-log-c-like-modes)
802 (or (c-cpp-define-name)
803 (c-defun-name)))
804 ((memq major-mode add-log-tex-like-modes)
805 (if (re-search-backward
806 "\\\\\\(sub\\)*\\(section\\|paragraph\\|chapter\\)"
807 nil t)
808 (progn
809 (goto-char (match-beginning 0))
810 (buffer-substring-no-properties
811 (1+ (point)) ; without initial backslash
812 (line-end-position)))))
813 ((eq major-mode 'texinfo-mode)
814 (if (re-search-backward "^@node[ \t]+\\([^,\n]+\\)" nil t)
815 (match-string-no-properties 1)))
816 ((memq major-mode '(perl-mode cperl-mode))
817 (if (re-search-backward "^sub[ \t]+\\([^({ \t\n]+\\)" nil t)
818 (match-string-no-properties 1)))
819 ;; Emacs's autoconf-mode installs its own
820 ;; `add-log-current-defun-function'. This applies to
821 ;; a different mode apparently for editing .m4
822 ;; autoconf source.
823 ((eq major-mode 'autoconf-mode)
824 (if (re-search-backward
825 "^\\(\\(m4_\\)?define\\|A._DEFUN\\)(\\[?\\([A-Za-z0-9_]+\\)" nil t)
826 (match-string-no-properties 3)))
828 ;; If all else fails, try heuristics
829 (let (case-fold-search
830 result)
831 (end-of-line)
832 (when (re-search-backward
833 add-log-current-defun-header-regexp
834 (- (point) 10000)
836 (setq result (or (match-string-no-properties 1)
837 (match-string-no-properties 0)))
838 ;; Strip whitespace away
839 (when (string-match "\\([^ \t\n\r\f].*[^ \t\n\r\f]\\)"
840 result)
841 (setq result (match-string-no-properties 1 result)))
842 result))))))
843 (error nil)))
845 (defvar change-log-get-method-definition-md)
847 ;; Subroutine used within change-log-get-method-definition.
848 ;; Add the last match in the buffer to the end of `md',
849 ;; followed by the string END; move to the end of that match.
850 (defun change-log-get-method-definition-1 (end)
851 (setq change-log-get-method-definition-md
852 (concat change-log-get-method-definition-md
853 (match-string 1)
854 end))
855 (goto-char (match-end 0)))
857 (defun change-log-get-method-definition ()
858 "For Objective C, return the method name if we are in a method."
859 (let ((change-log-get-method-definition-md "["))
860 (save-excursion
861 (if (re-search-backward "^@implementation\\s-*\\([A-Za-z_]*\\)" nil t)
862 (change-log-get-method-definition-1 " ")))
863 (save-excursion
864 (cond
865 ((re-search-forward "^\\([-+]\\)[ \t\n\f\r]*\\(([^)]*)\\)?\\s-*" nil t)
866 (change-log-get-method-definition-1 "")
867 (while (not (looking-at "[{;]"))
868 (looking-at
869 "\\([A-Za-z_]*:?\\)\\s-*\\(([^)]*)\\)?[A-Za-z_]*[ \t\n\f\r]*")
870 (change-log-get-method-definition-1 ""))
871 (concat change-log-get-method-definition-md "]"))))))
873 (defun change-log-sortable-date-at ()
874 "Return date of log entry in a consistent form for sorting.
875 Point is assumed to be at the start of the entry."
876 (require 'timezone)
877 (if (looking-at "^\\sw.........[0-9:+ ]*")
878 (let ((date (match-string-no-properties 0)))
879 (if date
880 (if (string-match "\\(....\\)-\\(..\\)-\\(..\\)\\s-+" date)
881 (concat (match-string 1 date) (match-string 2 date)
882 (match-string 3 date))
883 (condition-case nil
884 (timezone-make-date-sortable date)
885 (error nil)))))
886 (error "Bad date")))
888 (defun change-log-resolve-conflict ()
889 "Function to be used in `smerge-resolve-function'."
890 (let ((buf (current-buffer)))
891 (with-temp-buffer
892 (insert-buffer-substring buf (match-beginning 1) (match-end 1))
893 (save-match-data (change-log-mode))
894 (let ((other-buf (current-buffer)))
895 (with-current-buffer buf
896 (save-excursion
897 (save-restriction
898 (narrow-to-region (match-beginning 0) (match-end 0))
899 (replace-match (match-string 3) t t)
900 (change-log-merge other-buf))))))))
902 ;;;###autoload
903 (defun change-log-merge (other-log)
904 "Merge the contents of change log file OTHER-LOG with this buffer.
905 Both must be found in Change Log mode (since the merging depends on
906 the appropriate motion commands). OTHER-LOG can be either a file name
907 or a buffer.
909 Entries are inserted in chronological order. Both the current and
910 old-style time formats for entries are supported."
911 (interactive "*fLog file name to merge: ")
912 (if (not (eq major-mode 'change-log-mode))
913 (error "Not in Change Log mode"))
914 (let ((other-buf (if (bufferp other-log) other-log
915 (find-file-noselect other-log)))
916 (buf (current-buffer))
917 date1 start end)
918 (save-excursion
919 (goto-char (point-min))
920 (set-buffer other-buf)
921 (goto-char (point-min))
922 (if (not (eq major-mode 'change-log-mode))
923 (error "%s not found in Change Log mode" other-log))
924 ;; Loop through all the entries in OTHER-LOG.
925 (while (not (eobp))
926 (setq date1 (change-log-sortable-date-at))
927 (setq start (point)
928 end (progn (forward-page) (point)))
929 ;; Look for an entry in original buffer that isn't later.
930 (with-current-buffer buf
931 (while (and (not (eobp))
932 (string< date1 (change-log-sortable-date-at)))
933 (forward-page))
934 (if (not (eobp))
935 (insert-buffer-substring other-buf start end)
936 ;; At the end of the original buffer, insert a newline to
937 ;; separate entries and then the rest of the file being
938 ;; merged.
939 (unless (or (bobp)
940 (and (= ?\n (char-before))
941 (or (<= (1- (point)) (point-min))
942 (= ?\n (char-before (1- (point)))))))
943 (insert (if use-hard-newlines hard-newline "\n")))
944 ;; Move to the end of it to terminate outer loop.
945 (with-current-buffer other-buf
946 (goto-char (point-max)))
947 (insert-buffer-substring other-buf start)))))))
949 (provide 'add-log)
951 ;; arch-tag: 81eee6fc-088f-4372-a37f-80ad9620e762
952 ;;; add-log.el ends here