Merge from emacs-24; up to 2013-01-01T11:02:14Z!rudalics@gmx.at
[bpt/emacs.git] / lisp / bookmark.el
1 ;;; bookmark.el --- set bookmarks, maybe annotate them, jump to them later
2
3 ;; Copyright (C) 1993-1997, 2001-2013 Free Software Foundation, Inc.
4
5 ;; Author: Karl Fogel <kfogel@red-bean.com>
6 ;; Maintainer: Karl Fogel <kfogel@red-bean.com>
7 ;; Created: July, 1993
8 ;; Keywords: bookmarks, placeholders, annotations
9
10 ;; This file is part of GNU Emacs.
11
12 ;; GNU Emacs is free software: you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation, either version 3 of the License, or
15 ;; (at your option) any later version.
16
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
21
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
24
25 ;;; Commentary:
26
27 ;; This package is for setting "bookmarks" in files. A bookmark
28 ;; associates a string with a location in a certain file. Thus, you
29 ;; can navigate your way to that location by providing the string.
30 ;; See the "User Variables" section for customizations.
31
32 \f
33 ;;; Code:
34
35 (require 'pp)
36 (eval-when-compile (require 'cl-lib))
37
38 ;;; Misc comments:
39 ;;
40 ;; If variable bookmark-use-annotations is non-nil, an annotation is
41 ;; queried for when setting a bookmark.
42 ;;
43 ;; The bookmark list is sorted lexically by default, but you can turn
44 ;; this off by setting bookmark-sort-flag to nil. If it is nil, then
45 ;; the list will be presented in the order it is recorded
46 ;; (chronologically), which is actually fairly useful as well.
47
48 ;;; User Variables
49
50 (defgroup bookmark nil
51 "Setting, annotation and jumping to bookmarks."
52 :group 'matching)
53
54
55 (defcustom bookmark-use-annotations nil
56 "If non-nil, saving a bookmark queries for an annotation in a buffer."
57 :type 'boolean
58 :group 'bookmark)
59
60
61 (defcustom bookmark-save-flag t
62 "Controls when Emacs saves bookmarks to a file.
63 --> nil means never save bookmarks, except when `bookmark-save' is
64 explicitly called (\\[bookmark-save]).
65 --> t means save bookmarks when Emacs is killed.
66 --> Otherwise, it should be a number that is the frequency with which
67 the bookmark list is saved (i.e.: the number of times which
68 Emacs's bookmark list may be modified before it is automatically
69 saved.). If it is a number, Emacs will also automatically save
70 bookmarks when it is killed.
71
72 Therefore, the way to get it to save every time you make or delete a
73 bookmark is to set this variable to 1 (or 0, which produces the same
74 behavior.)
75
76 To specify the file in which to save them, modify the variable
77 `bookmark-default-file', which is `~/.emacs.bmk' by default."
78 :type '(choice (const nil) integer (other t))
79 :group 'bookmark)
80
81
82 (defconst bookmark-old-default-file "~/.emacs-bkmrks"
83 "The `.emacs.bmk' file used to be called this name.")
84
85
86 ;; defvared to avoid a compilation warning:
87 (defvar bookmark-file nil
88 "Old name for `bookmark-default-file'.")
89
90 (defcustom bookmark-default-file
91 (if bookmark-file
92 ;; In case user set `bookmark-file' in her .emacs:
93 bookmark-file
94 (locate-user-emacs-file "bookmarks" ".emacs.bmk"))
95 "File in which to save bookmarks by default."
96 :type 'file
97 :group 'bookmark)
98
99
100 (defcustom bookmark-version-control 'nospecial
101 "Whether or not to make numbered backups of the bookmark file.
102 It can have four values: t, nil, `never', or `nospecial'.
103 The first three have the same meaning that they do for the
104 variable `version-control'; the value `nospecial' (the default) means
105 just use the value of `version-control'."
106 :type '(choice (const :tag "If existing" nil)
107 (const :tag "Never" never)
108 (const :tag "Use value of option `version-control'" nospecial)
109 (other :tag "Always" t))
110 :group 'bookmark)
111
112
113 (defcustom bookmark-completion-ignore-case t
114 "Non-nil means bookmark functions ignore case in completion."
115 :type 'boolean
116 :group 'bookmark)
117
118
119 (defcustom bookmark-sort-flag t
120 "Non-nil means that bookmarks will be displayed sorted by bookmark name.
121 Otherwise they will be displayed in LIFO order (that is, most
122 recently set ones come first, oldest ones come last)."
123 :type 'boolean
124 :group 'bookmark)
125
126
127 (defcustom bookmark-automatically-show-annotations t
128 "Non-nil means show annotations when jumping to a bookmark."
129 :type 'boolean
130 :group 'bookmark)
131
132 (defcustom bookmark-bmenu-use-header-line t
133 "Non-nil means to use an immovable header line, as opposed to inline
134 text at the top of the buffer."
135 :type 'boolean
136 :group 'bookmark)
137
138 (defconst bookmark-bmenu-inline-header-height 2
139 "Number of lines used for the *Bookmark List* header
140 \(only significant when `bookmark-bmenu-use-header-line' is nil\).")
141
142 (defconst bookmark-bmenu-marks-width 2
143 "Number of columns (chars) used for the *Bookmark List* marks column,
144 including the annotations column.")
145
146 (defcustom bookmark-bmenu-file-column 30
147 "Column at which to display filenames in a buffer listing bookmarks.
148 You can toggle whether files are shown with \\<bookmark-bmenu-mode-map>\\[bookmark-bmenu-toggle-filenames]."
149 :type 'integer
150 :group 'bookmark)
151
152
153 (defcustom bookmark-bmenu-toggle-filenames t
154 "Non-nil means show filenames when listing bookmarks.
155 A non-nil value may result in truncated bookmark names."
156 :type 'boolean
157 :group 'bookmark)
158
159 (defface bookmark-menu-bookmark
160 '((t (:weight bold)))
161 "Face used to highlight bookmark names in bookmark menu buffers."
162 :group 'bookmark)
163
164 (defcustom bookmark-menu-length 70
165 "Maximum length of a bookmark name displayed on a popup menu."
166 :type 'integer
167 :group 'bookmark)
168
169 ;; FIXME: Is it really worth a customization option?
170 (defcustom bookmark-search-delay 0.2
171 "Time before `bookmark-bmenu-search' updates the display."
172 :group 'bookmark
173 :type 'number)
174
175 (defface bookmark-menu-heading
176 '((t (:inherit font-lock-type-face)))
177 "Face used to highlight the heading in bookmark menu buffers."
178 :group 'bookmark
179 :version "22.1")
180
181
182 ;;; No user-serviceable parts beyond this point.
183
184 ;; Added for lucid emacs compatibility, db
185 (or (fboundp 'defalias) (fset 'defalias 'fset))
186
187 ;; suggested for lucid compatibility by david hughes:
188 (or (fboundp 'frame-height) (defalias 'frame-height 'screen-height))
189
190 \f
191 ;;; Keymap stuff:
192
193 ;; Set up these bindings dumping time *only*;
194 ;; if the user alters them, don't override the user when loading bookmark.el.
195
196 ;;;###autoload (define-key ctl-x-r-map "b" 'bookmark-jump)
197 ;;;###autoload (define-key ctl-x-r-map "m" 'bookmark-set)
198 ;;;###autoload (define-key ctl-x-r-map "l" 'bookmark-bmenu-list)
199
200 ;;;###autoload
201 (defvar bookmark-map
202 (let ((map (make-sparse-keymap)))
203 ;; Read the help on all of these functions for details...
204 (define-key map "x" 'bookmark-set)
205 (define-key map "m" 'bookmark-set) ;"m"ark
206 (define-key map "j" 'bookmark-jump)
207 (define-key map "g" 'bookmark-jump) ;"g"o
208 (define-key map "o" 'bookmark-jump-other-window)
209 (define-key map "i" 'bookmark-insert)
210 (define-key map "e" 'edit-bookmarks)
211 (define-key map "f" 'bookmark-insert-location) ;"f"ind
212 (define-key map "r" 'bookmark-rename)
213 (define-key map "d" 'bookmark-delete)
214 (define-key map "l" 'bookmark-load)
215 (define-key map "w" 'bookmark-write)
216 (define-key map "s" 'bookmark-save)
217 map)
218 "Keymap containing bindings to bookmark functions.
219 It is not bound to any key by default: to bind it
220 so that you have a bookmark prefix, just use `global-set-key' and bind a
221 key of your choice to `bookmark-map'. All interactive bookmark
222 functions have a binding in this keymap.")
223
224 ;;;###autoload (fset 'bookmark-map bookmark-map)
225
226 \f
227 ;;; Core variables and data structures:
228 (defvar bookmark-alist ()
229 "Association list of bookmarks and their records.
230 Bookmark functions update the value automatically.
231 You probably do NOT want to change the value yourself.
232
233 The value is an alist with entries of the form
234
235 (BOOKMARK-NAME . PARAM-ALIST)
236
237 or the deprecated form (BOOKMARK-NAME PARAM-ALIST).
238
239 BOOKMARK-NAME is the name you gave to the bookmark when creating it.
240
241 PARAM-ALIST is an alist of bookmark information. The order of the
242 entries in PARAM-ALIST is not important. The possible entries are
243 described below. An entry with a key but null value means the entry
244 is not used.
245
246 (filename . FILENAME)
247 (position . POS)
248 (front-context-string . STR-AFTER-POS)
249 (rear-context-string . STR-BEFORE-POS)
250 (handler . HANDLER)
251 (annotation . ANNOTATION)
252
253 FILENAME names the bookmarked file.
254 POS is the bookmarked buffer position (position in the file).
255 STR-AFTER-POS is buffer text that immediately follows POS.
256 STR-BEFORE-POS is buffer text that immediately precedes POS.
257 ANNOTATION is a string that describes the bookmark.
258 See options `bookmark-use-annotations' and
259 `bookmark-automatically-show-annotations'.
260 HANDLER is a function that provides the bookmark-jump behavior for a
261 specific kind of bookmark. This is the case for Info bookmarks,
262 for instance. HANDLER must accept a bookmark as argument.")
263
264 (defvar bookmarks-already-loaded nil
265 "Non-nil if and only if bookmarks have been loaded from `bookmark-default-file'.")
266
267
268 ;; more stuff added by db.
269
270 (defvar bookmark-current-bookmark nil
271 "Name of bookmark most recently used in the current file.
272 It is buffer local, used to make moving a bookmark forward
273 through a file easier.")
274
275 (make-variable-buffer-local 'bookmark-current-bookmark)
276
277
278 (defvar bookmark-alist-modification-count 0
279 "Number of modifications to bookmark list since it was last saved.")
280
281
282 (defvar bookmark-search-size 16
283 "Length of the context strings recorded on either side of a bookmark.")
284
285
286 (defvar bookmark-current-buffer nil
287 "The buffer in which a bookmark is currently being set or renamed.
288 Functions that insert strings into the minibuffer use this to know
289 the source buffer for that information; see `bookmark-yank-word'
290 for example.")
291
292
293 (defvar bookmark-yank-point 0
294 "The next point from which to pull source text for `bookmark-yank-word'.
295 This point is in `bookmark-current-buffer'.")
296
297
298 (defvar bookmark-quit-flag nil
299 "Non nil make `bookmark-bmenu-search' quit immediately.")
300 \f
301 ;; Helper functions and macros.
302
303 (defmacro with-buffer-modified-unmodified (&rest body)
304 "Run BODY while preserving the buffer's `buffer-modified-p' state."
305 (let ((was-modified (make-symbol "was-modified")))
306 `(let ((,was-modified (buffer-modified-p)))
307 (unwind-protect
308 (progn ,@body)
309 (set-buffer-modified-p ,was-modified)))))
310
311 ;; Only functions below, in this page and the next one (file formats),
312 ;; need to know anything about the format of bookmark-alist entries.
313 ;; Everyone else should go through them.
314
315 (defun bookmark-name-from-full-record (bookmark-record)
316 "Return the name of BOOKMARK-RECORD. BOOKMARK-RECORD is, e.g.,
317 one element from `bookmark-alist'."
318 (car bookmark-record))
319
320
321 (defun bookmark-all-names ()
322 "Return a list of all current bookmark names."
323 (bookmark-maybe-load-default-file)
324 (mapcar 'bookmark-name-from-full-record bookmark-alist))
325
326
327 (defun bookmark-get-bookmark (bookmark-name-or-record &optional noerror)
328 "Return the bookmark record corresponding to BOOKMARK-NAME-OR-RECORD.
329 If BOOKMARK-NAME-OR-RECORD is a string, look for the corresponding
330 bookmark record in `bookmark-alist'; return it if found, otherwise
331 error. Else if BOOKMARK-NAME-OR-RECORD is already a bookmark record,
332 just return it."
333 (cond
334 ((consp bookmark-name-or-record) bookmark-name-or-record)
335 ((stringp bookmark-name-or-record)
336 (or (assoc-string bookmark-name-or-record bookmark-alist
337 bookmark-completion-ignore-case)
338 (unless noerror (error "Invalid bookmark %s"
339 bookmark-name-or-record))))))
340
341
342 (defun bookmark-get-bookmark-record (bookmark-name-or-record)
343 "Return the record portion of the entry for BOOKMARK-NAME-OR-RECORD in
344 `bookmark-alist' (that is, all information but the name)."
345 (let ((alist (cdr (bookmark-get-bookmark bookmark-name-or-record))))
346 ;; The bookmark objects can either look like (NAME ALIST) or
347 ;; (NAME . ALIST), so we have to distinguish the two here.
348 (if (and (null (cdr alist)) (consp (caar alist)))
349 (car alist) alist)))
350
351
352 (defun bookmark-set-name (bookmark-name-or-record newname)
353 "Set BOOKMARK-NAME-OR-RECORD's name to NEWNAME."
354 (setcar (bookmark-get-bookmark bookmark-name-or-record) newname))
355
356 (defun bookmark-prop-get (bookmark-name-or-record prop)
357 "Return the property PROP of BOOKMARK-NAME-OR-RECORD, or nil if none."
358 (cdr (assq prop (bookmark-get-bookmark-record bookmark-name-or-record))))
359
360 (defun bookmark-prop-set (bookmark-name-or-record prop val)
361 "Set the property PROP of BOOKMARK-NAME-OR-RECORD to VAL."
362 (let ((cell (assq
363 prop (bookmark-get-bookmark-record bookmark-name-or-record))))
364 (if cell
365 (setcdr cell val)
366 (nconc (bookmark-get-bookmark-record bookmark-name-or-record)
367 (list (cons prop val))))))
368
369 (defun bookmark-get-annotation (bookmark-name-or-record)
370 "Return the annotation of BOOKMARK-NAME-OR-RECORD, or nil if none."
371 (bookmark-prop-get bookmark-name-or-record 'annotation))
372
373 (defun bookmark-set-annotation (bookmark-name-or-record ann)
374 "Set the annotation of BOOKMARK-NAME-OR-RECORD to ANN."
375 (bookmark-prop-set bookmark-name-or-record 'annotation ann))
376
377
378 (defun bookmark-get-filename (bookmark-name-or-record)
379 "Return the full filename of BOOKMARK-NAME-OR-RECORD, or nil if none."
380 (bookmark-prop-get bookmark-name-or-record 'filename))
381
382
383 (defun bookmark-set-filename (bookmark-name-or-record filename)
384 "Set the full filename of BOOKMARK-NAME-OR-RECORD to FILENAME."
385 (bookmark-prop-set bookmark-name-or-record 'filename filename))
386
387
388 (defun bookmark-get-position (bookmark-name-or-record)
389 "Return the position (i.e.: point) of BOOKMARK-NAME-OR-RECORD, or nil if none."
390 (bookmark-prop-get bookmark-name-or-record 'position))
391
392
393 (defun bookmark-set-position (bookmark-name-or-record position)
394 "Set the position (i.e.: point) of BOOKMARK-NAME-OR-RECORD to POSITION."
395 (bookmark-prop-set bookmark-name-or-record 'position position))
396
397
398 (defun bookmark-get-front-context-string (bookmark-name-or-record)
399 "Return the front-context-string of BOOKMARK-NAME-OR-RECORD, or nil if none."
400 (bookmark-prop-get bookmark-name-or-record 'front-context-string))
401
402
403 (defun bookmark-set-front-context-string (bookmark-name-or-record string)
404 "Set the front-context-string of BOOKMARK-NAME-OR-RECORD to STRING."
405 (bookmark-prop-set bookmark-name-or-record 'front-context-string string))
406
407
408 (defun bookmark-get-rear-context-string (bookmark-name-or-record)
409 "Return the rear-context-string of BOOKMARK-NAME-OR-RECORD, or nil if none."
410 (bookmark-prop-get bookmark-name-or-record 'rear-context-string))
411
412
413 (defun bookmark-set-rear-context-string (bookmark-name-or-record string)
414 "Set the rear-context-string of BOOKMARK-NAME-OR-RECORD to STRING."
415 (bookmark-prop-set bookmark-name-or-record 'rear-context-string string))
416
417
418 (defun bookmark-get-handler (bookmark-name-or-record)
419 "Return the handler function for BOOKMARK-NAME-OR-RECORD, or nil if none."
420 (bookmark-prop-get bookmark-name-or-record 'handler))
421
422 (defvar bookmark-history nil
423 "The history list for bookmark functions.")
424
425
426 (defun bookmark-completing-read (prompt &optional default)
427 "Prompting with PROMPT, read a bookmark name in completion.
428 PROMPT will get a \": \" stuck on the end no matter what, so you
429 probably don't want to include one yourself.
430 Optional arg DEFAULT is a string to return if the user input is empty.
431 If DEFAULT is nil then return empty string for empty input."
432 (bookmark-maybe-load-default-file) ; paranoia
433 (if (listp last-nonmenu-event)
434 (bookmark-menu-popup-paned-menu t prompt
435 (if bookmark-sort-flag
436 (sort (bookmark-all-names)
437 'string-lessp)
438 (bookmark-all-names)))
439 (let* ((completion-ignore-case bookmark-completion-ignore-case)
440 (default (unless (equal "" default) default))
441 (prompt (concat prompt (if default
442 (format " (%s): " default)
443 ": "))))
444 (completing-read prompt
445 (lambda (string pred action)
446 (if (eq action 'metadata)
447 '(metadata (category . bookmark))
448 (complete-with-action
449 action bookmark-alist string pred)))
450 nil 0 nil 'bookmark-history default))))
451
452
453 (defmacro bookmark-maybe-historicize-string (string)
454 "Put STRING into the bookmark prompt history, if caller non-interactive.
455 We need this because sometimes bookmark functions are invoked from
456 menus, so `completing-read' never gets a chance to set `bookmark-history'."
457 `(or
458 (called-interactively-p 'interactive)
459 (setq bookmark-history (cons ,string bookmark-history))))
460
461 (defvar bookmark-make-record-function 'bookmark-make-record-default
462 "A function that should be called to create a bookmark record.
463 Modes may set this variable buffer-locally to enable bookmarking of
464 locations that should be treated specially, such as Info nodes,
465 news posts, images, pdf documents, etc.
466
467 The function will be called with no arguments.
468 It should signal a user error if it is unable to construct a record for
469 the current location.
470
471 The returned record should be a cons cell of the form (NAME . ALIST)
472 where ALIST is as described in `bookmark-alist' and may typically contain
473 a special cons (handler . HANDLER-FUNC) which specifies the handler function
474 that should be used instead of `bookmark-default-handler' to open this
475 bookmark. See the documentation for `bookmark-alist' for more.
476
477 NAME is a suggested name for the constructed bookmark. It can be nil
478 in which case a default heuristic will be used. The function can also
479 equivalently just return ALIST without NAME.")
480
481 (defun bookmark-make-record ()
482 "Return a new bookmark record (NAME . ALIST) for the current location."
483 (let ((record (funcall bookmark-make-record-function)))
484 ;; Set up default name if the function does not provide one.
485 (unless (stringp (car record))
486 (if (car record) (push nil record))
487 (setcar record (or bookmark-current-bookmark (bookmark-buffer-name))))
488 ;; Set up defaults.
489 (bookmark-prop-set
490 record 'defaults
491 (delq nil (delete-dups (append (bookmark-prop-get record 'defaults)
492 (list bookmark-current-bookmark
493 (car record)
494 (bookmark-buffer-name))))))
495 record))
496
497 (defun bookmark-store (name alist no-overwrite)
498 "Store the bookmark NAME with data ALIST.
499 If NO-OVERWRITE is non-nil and another bookmark of the same name already
500 exists in `bookmark-alist', record the new bookmark without throwing away the
501 old one."
502 (bookmark-maybe-load-default-file)
503 (let ((stripped-name (copy-sequence name)))
504 (or (featurep 'xemacs)
505 ;; XEmacs's `set-text-properties' doesn't work on
506 ;; free-standing strings, apparently.
507 (set-text-properties 0 (length stripped-name) nil stripped-name))
508 (if (and (not no-overwrite)
509 (bookmark-get-bookmark stripped-name 'noerror))
510 ;; already existing bookmark under that name and
511 ;; no prefix arg means just overwrite old bookmark
512 ;; Use the new (NAME . ALIST) format.
513 (setcdr (bookmark-get-bookmark stripped-name) alist)
514
515 ;; otherwise just cons it onto the front (either the bookmark
516 ;; doesn't exist already, or there is no prefix arg. In either
517 ;; case, we want the new bookmark consed onto the alist...)
518
519 (push (cons stripped-name alist) bookmark-alist))
520
521 ;; Added by db
522 (setq bookmark-current-bookmark stripped-name)
523 (setq bookmark-alist-modification-count
524 (1+ bookmark-alist-modification-count))
525 (if (bookmark-time-to-save-p)
526 (bookmark-save))
527
528 (setq bookmark-current-bookmark stripped-name)
529 (bookmark-bmenu-surreptitiously-rebuild-list)))
530
531 (defun bookmark-make-record-default (&optional no-file no-context posn)
532 "Return the record describing the location of a new bookmark.
533 Point should be at the buffer in which the bookmark is being set,
534 and normally should be at the position where the bookmark is desired,
535 but see the optional arguments for other possibilities.
536
537 If NO-FILE is non-nil, then only return the subset of the
538 record that pertains to the location within the buffer, leaving off
539 the part that records the filename.
540
541 If NO-CONTEXT is non-nil, do not include the front- and rear-context
542 strings in the record -- the position is enough.
543
544 If POSN is non-nil, record POSN as the point instead of `(point)'."
545 `(,@(unless no-file `((filename . ,(bookmark-buffer-file-name))))
546 ,@(unless no-context `((front-context-string
547 . ,(if (>= (- (point-max) (point))
548 bookmark-search-size)
549 (buffer-substring-no-properties
550 (point)
551 (+ (point) bookmark-search-size))
552 nil))))
553 ,@(unless no-context `((rear-context-string
554 . ,(if (>= (- (point) (point-min))
555 bookmark-search-size)
556 (buffer-substring-no-properties
557 (point)
558 (- (point) bookmark-search-size))
559 nil))))
560 (position . ,(or posn (point)))))
561
562 \f
563 ;;; File format stuff
564
565 ;; *IMPORTANT NOTICE* If you are thinking about modifying (redefining)
566 ;; the bookmark file format -- please don't. The current format
567 ;; should be extensible enough. If you feel the need to change it,
568 ;; please discuss it with other Emacs developers first.
569 ;;
570 ;; The format of `bookmark-alist' has changed twice in its lifetime.
571 ;; This comment describes the three formats, FIRST, SECOND, and
572 ;; CURRENT.
573 ;;
574 ;; The FIRST format was used prior to Emacs 20:
575 ;;
576 ;; ((BOOKMARK-NAME (FILENAME
577 ;; STRING-IN-FRONT
578 ;; STRING-BEHIND
579 ;; POINT))
580 ;; ...)
581 ;;
582 ;; The SECOND format was introduced in Emacs 20:
583 ;;
584 ;; ((BOOKMARK-NAME ((filename . FILENAME)
585 ;; (position . POS)
586 ;; (front-context-string . STR-AFTER-POS)
587 ;; (rear-context-string . STR-BEFORE-POS)
588 ;; (annotation . ANNOTATION)
589 ;; (whatever . VALUE)
590 ;; ...
591 ;; ))
592 ;; ...)
593 ;;
594 ;; The CURRENT format was introduced in Emacs 22:
595 ;;
596 ;; ((BOOKMARK-NAME (filename . FILENAME)
597 ;; (position . POS)
598 ;; (front-context-string . STR-AFTER-POS)
599 ;; (rear-context-string . STR-BEFORE-POS)
600 ;; (annotation . ANNOTATION)
601 ;; (whatever . VALUE)
602 ;; ...
603 ;; )
604 ;; ...)
605 ;;
606 ;; Both FIRST and SECOND have the same level of nesting: the cadr of a
607 ;; bookmark record is a list of entry information. FIRST and SECOND
608 ;; differ in the form of the record information: FIRST uses a list of
609 ;; atoms, and SECOND uses an alist. In the FIRST format, the order of
610 ;; the list elements matters. In the SECOND format, the order of the
611 ;; alist elements is unimportant. The SECOND format facilitates the
612 ;; addition of new kinds of elements, to support new kinds of
613 ;; bookmarks or code evolution.
614 ;;
615 ;; The CURRENT format removes a level of nesting wrt FIRST and SECOND,
616 ;; saving one cons cell per bookmark: the cadr of a bookmark record is
617 ;; no longer a cons. Why that change was made remains a mystery --
618 ;; just be aware of it. (Be aware too that this explanatory comment
619 ;; was incorrect in Emacs 22 and Emacs 23.1.)
620 ;;
621 ;; To deal with the change from FIRST format to SECOND, conversion
622 ;; code was added, and it is still in use. See
623 ;; `bookmark-maybe-upgrade-file-format'.
624 ;;
625 ;; No conversion from SECOND to CURRENT is done. Instead, the code
626 ;; handles both formats OK. It must continue to do so.
627 ;;
628 ;; See the doc string of `bookmark-alist' for information about the
629 ;; elements that define a bookmark (e.g. `filename').
630
631
632 (defconst bookmark-file-format-version 1
633 "The current version of the format used by bookmark files.
634 You should never need to change this.")
635
636
637 (defconst bookmark-end-of-version-stamp-marker
638 "-*- End Of Bookmark File Format Version Stamp -*-\n"
639 "This string marks the end of the version stamp in a bookmark file.")
640
641
642 (defun bookmark-alist-from-buffer ()
643 "Return a `bookmark-alist' (in any format) from the current buffer.
644 The buffer must of course contain bookmark format information.
645 Does not care from where in the buffer it is called, and does not
646 affect point."
647 (save-excursion
648 (goto-char (point-min))
649 (if (search-forward bookmark-end-of-version-stamp-marker nil t)
650 (read (current-buffer))
651 ;; Else we're dealing with format version 0
652 (if (search-forward "(" nil t)
653 (progn
654 (forward-char -1)
655 (read (current-buffer)))
656 ;; Else no hope of getting information here.
657 (error "Not bookmark format")))))
658
659
660 (defun bookmark-upgrade-version-0-alist (old-list)
661 "Upgrade a version 0 alist OLD-LIST to the current version."
662 (mapcar
663 (lambda (bookmark)
664 (let* ((name (car bookmark))
665 (record (car (cdr bookmark)))
666 (filename (nth 0 record))
667 (front-str (nth 1 record))
668 (rear-str (nth 2 record))
669 (position (nth 3 record))
670 (ann (nth 4 record)))
671 (list
672 name
673 `((filename . ,filename)
674 (front-context-string . ,(or front-str ""))
675 (rear-context-string . ,(or rear-str ""))
676 (position . ,position)
677 (annotation . ,ann)))))
678 old-list))
679
680
681 (defun bookmark-upgrade-file-format-from-0 ()
682 "Upgrade a bookmark file of format 0 (the original format) to format 1.
683 This expects to be called from `point-min' in a bookmark file."
684 (message "Upgrading bookmark format from 0 to %d..."
685 bookmark-file-format-version)
686 (let* ((old-list (bookmark-alist-from-buffer))
687 (new-list (bookmark-upgrade-version-0-alist old-list)))
688 (delete-region (point-min) (point-max))
689 (bookmark-insert-file-format-version-stamp)
690 (pp new-list (current-buffer))
691 (save-buffer))
692 (goto-char (point-min))
693 (message "Upgrading bookmark format from 0 to %d...done"
694 bookmark-file-format-version)
695 )
696
697
698 (defun bookmark-grok-file-format-version ()
699 "Return an integer which is the file-format version of this bookmark file.
700 This expects to be called from `point-min' in a bookmark file."
701 (if (looking-at "^;;;;")
702 (save-excursion
703 (save-match-data
704 (re-search-forward "[0-9]")
705 (forward-char -1)
706 (read (current-buffer))))
707 ;; Else this is format version 0, the original one, which didn't
708 ;; even have version stamps.
709 0))
710
711
712 (defun bookmark-maybe-upgrade-file-format ()
713 "Check the file-format version of this bookmark file.
714 If the version is not up-to-date, upgrade it automatically.
715 This expects to be called from `point-min' in a bookmark file."
716 (let ((version (bookmark-grok-file-format-version)))
717 (cond
718 ((= version bookmark-file-format-version)
719 ) ; home free -- version is current
720 ((= version 0)
721 (bookmark-upgrade-file-format-from-0))
722 (t
723 (error "Bookmark file format version strangeness")))))
724
725
726 (defun bookmark-insert-file-format-version-stamp ()
727 "Insert text indicating current version of bookmark file format."
728 (insert
729 (format ";;;; Emacs Bookmark Format Version %d ;;;;\n"
730 bookmark-file-format-version))
731 (insert ";;; This format is meant to be slightly human-readable;\n"
732 ";;; nevertheless, you probably don't want to edit it.\n"
733 ";;; "
734 bookmark-end-of-version-stamp-marker))
735
736
737 ;;; end file-format stuff
738
739 \f
740 ;;; Generic helpers.
741
742 (defun bookmark-maybe-message (fmt &rest args)
743 "Apply `message' to FMT and ARGS, but only if the display is fast enough."
744 (if (>= baud-rate 9600)
745 (apply 'message fmt args)))
746
747 \f
748 ;;; Core code:
749
750 (defvar bookmark-minibuffer-read-name-map
751 (let ((map (make-sparse-keymap)))
752 (set-keymap-parent map minibuffer-local-map)
753 (define-key map "\C-w" 'bookmark-yank-word)
754 map))
755
756 ;;;###autoload
757 (defun bookmark-set (&optional name no-overwrite)
758 "Set a bookmark named NAME at the current location.
759 If name is nil, then prompt the user.
760
761 With a prefix arg (non-nil NO-OVERWRITE), do not overwrite any
762 existing bookmark that has the same name as NAME, but instead push the
763 new bookmark onto the bookmark alist. The most recently set bookmark
764 with name NAME is thus the one in effect at any given time, but the
765 others are still there, should the user decide to delete the most
766 recent one.
767
768 To yank words from the text of the buffer and use them as part of the
769 bookmark name, type C-w while setting a bookmark. Successive C-w's
770 yank successive words.
771
772 Typing C-u inserts (at the bookmark name prompt) the name of the last
773 bookmark used in the document where the new bookmark is being set;
774 this helps you use a single bookmark name to track progress through a
775 large document. If there is no prior bookmark for this document, then
776 C-u inserts an appropriate name based on the buffer or file.
777
778 Use \\[bookmark-delete] to remove bookmarks (you give it a name and
779 it removes only the first instance of a bookmark with that name from
780 the list of bookmarks.)"
781 (interactive (list nil current-prefix-arg))
782 (unwind-protect
783 (let* ((record (bookmark-make-record))
784 ;; `defaults' is a transient element of the
785 ;; extensible format described above in the section
786 ;; `File format stuff'. Bookmark record functions
787 ;; can use it to specify a list of default values
788 ;; accessible via M-n while reading a bookmark name.
789 (defaults (bookmark-prop-get record 'defaults))
790 (default (if (consp defaults) (car defaults) defaults)))
791
792 (if defaults
793 ;; Don't store default values in the record.
794 (setq record (assq-delete-all 'defaults record))
795 ;; When no defaults in the record, use its first element.
796 (setq defaults (car record) default defaults))
797
798 (bookmark-maybe-load-default-file)
799 ;; Don't set `bookmark-yank-point' and `bookmark-current-buffer'
800 ;; if they have been already set in another buffer. (e.g gnus-art).
801 (unless (and bookmark-yank-point
802 bookmark-current-buffer)
803 (setq bookmark-yank-point (point))
804 (setq bookmark-current-buffer (current-buffer)))
805
806 (let ((str
807 (or name
808 (read-from-minibuffer
809 (format "Set bookmark (%s): " default)
810 nil
811 bookmark-minibuffer-read-name-map
812 nil nil defaults))))
813 (and (string-equal str "") (setq str default))
814 (bookmark-store str (cdr record) no-overwrite)
815
816 ;; Ask for an annotation buffer for this bookmark
817 (when bookmark-use-annotations
818 (bookmark-edit-annotation str))))
819 (setq bookmark-yank-point nil)
820 (setq bookmark-current-buffer nil)))
821
822
823 (defun bookmark-kill-line (&optional newline-too)
824 "Kill from point to end of line.
825 If optional arg NEWLINE-TOO is non-nil, delete the newline too.
826 Does not affect the kill ring."
827 (let ((eol (line-end-position)))
828 (delete-region (point) eol)
829 (if (and newline-too (looking-at "\n"))
830 (delete-char 1))))
831
832
833 ;; Defvars to avoid compilation warnings:
834 (defvar bookmark-annotation-name nil
835 "Variable holding the name of the bookmark.
836 This is used in `bookmark-edit-annotation' to record the bookmark
837 whose annotation is being edited.")
838
839
840 (defun bookmark-default-annotation-text (bookmark-name)
841 "Return default annotation text for BOOKMARK-NAME.
842 The default annotation text is simply some text explaining how to use
843 annotations."
844 (concat "# Type the annotation for bookmark '" bookmark-name "' here.\n"
845 "# All lines which start with a '#' will be deleted.\n"
846 "# Type C-c C-c when done.\n#\n"
847 "# Author: " (user-full-name) " <" (user-login-name) "@"
848 (system-name) ">\n"
849 "# Date: " (current-time-string) "\n"))
850
851
852 (define-obsolete-variable-alias 'bookmark-read-annotation-text-func
853 'bookmark-edit-annotation-text-func "23.1")
854 (defvar bookmark-edit-annotation-text-func 'bookmark-default-annotation-text
855 "Function to return default text to use for a bookmark annotation.
856 It takes one argument, the name of the bookmark, as a string.")
857
858 (defvar bookmark-edit-annotation-mode-map
859 (let ((map (make-sparse-keymap)))
860 (set-keymap-parent map text-mode-map)
861 (define-key map "\C-c\C-c" 'bookmark-send-edited-annotation)
862 map)
863 "Keymap for editing an annotation of a bookmark.")
864
865
866 (defun bookmark-edit-annotation-mode (bookmark-name-or-record)
867 "Mode for editing the annotation of bookmark BOOKMARK-NAME-OR-RECORD.
868 When you have finished composing, type \\[bookmark-send-annotation].
869
870 \\{bookmark-edit-annotation-mode-map}"
871 (interactive)
872 (kill-all-local-variables)
873 (make-local-variable 'bookmark-annotation-name)
874 (setq bookmark-annotation-name bookmark-name-or-record)
875 (use-local-map bookmark-edit-annotation-mode-map)
876 (setq major-mode 'bookmark-edit-annotation-mode
877 mode-name "Edit Bookmark Annotation")
878 (insert (funcall bookmark-edit-annotation-text-func bookmark-name-or-record))
879 (let ((annotation (bookmark-get-annotation bookmark-name-or-record)))
880 (if (and annotation (not (string-equal annotation "")))
881 (insert annotation)))
882 (run-mode-hooks 'text-mode-hook))
883
884
885 (defun bookmark-send-edited-annotation ()
886 "Use buffer contents as annotation for a bookmark.
887 Lines beginning with `#' are ignored."
888 (interactive)
889 (if (not (eq major-mode 'bookmark-edit-annotation-mode))
890 (error "Not in bookmark-edit-annotation-mode"))
891 (goto-char (point-min))
892 (while (< (point) (point-max))
893 (if (looking-at "^#")
894 (bookmark-kill-line t)
895 (forward-line 1)))
896 ;; Take no chances with text properties.
897 (let ((annotation (buffer-substring-no-properties (point-min) (point-max)))
898 (bookmark-name bookmark-annotation-name))
899 (bookmark-set-annotation bookmark-name annotation)
900 (setq bookmark-alist-modification-count
901 (1+ bookmark-alist-modification-count))
902 (bookmark-bmenu-surreptitiously-rebuild-list))
903 (kill-buffer (current-buffer)))
904
905
906 (defun bookmark-edit-annotation (bookmark-name-or-record)
907 "Pop up a buffer for editing bookmark BOOKMARK-NAME-OR-RECORD's annotation."
908 (pop-to-buffer (generate-new-buffer-name "*Bookmark Annotation Compose*"))
909 (bookmark-edit-annotation-mode bookmark-name-or-record))
910
911
912 (defun bookmark-buffer-name ()
913 "Return the name of the current buffer in a form usable as a bookmark name.
914 If the buffer is associated with a file or directory, use that name."
915 (cond
916 ;; Or are we a file?
917 (buffer-file-name (file-name-nondirectory buffer-file-name))
918 ;; Or are we a directory?
919 ((and (boundp 'dired-directory) dired-directory)
920 (let* ((dirname (if (stringp dired-directory)
921 dired-directory
922 (car dired-directory)))
923 (idx (1- (length dirname))))
924 ;; Strip the trailing slash.
925 (if (= ?/ (aref dirname idx))
926 (file-name-nondirectory (substring dirname 0 idx))
927 ;; Else return the current-buffer
928 (buffer-name (current-buffer)))))
929 ;; If all else fails, use the buffer's name.
930 (t
931 (buffer-name (current-buffer)))))
932
933
934 (defun bookmark-yank-word ()
935 "Get the next word from buffer `bookmark-current-buffer' and append
936 it to the name of the bookmark currently being set, advancing
937 `bookmark-yank-point' by one word."
938 (interactive)
939 (let ((string (with-current-buffer bookmark-current-buffer
940 (goto-char bookmark-yank-point)
941 (buffer-substring-no-properties
942 (point)
943 (progn
944 (forward-word 1)
945 (setq bookmark-yank-point (point)))))))
946 (insert string)))
947
948 (defun bookmark-buffer-file-name ()
949 "Return the current buffer's file in a way useful for bookmarks."
950 ;; Abbreviate the path, both so it's shorter and so it's more
951 ;; portable. E.g., the user's home dir might be a different
952 ;; path on different machines, but "~/" will still reach it.
953 (abbreviate-file-name
954 (cond
955 (buffer-file-name buffer-file-name)
956 ((and (boundp 'dired-directory) dired-directory)
957 (if (stringp dired-directory)
958 dired-directory
959 (car dired-directory)))
960 (t (error "Buffer not visiting a file or directory")))))
961
962
963 (defun bookmark-maybe-load-default-file ()
964 "If bookmarks have not been loaded from the default place, load them."
965 (and (not bookmarks-already-loaded)
966 (null bookmark-alist)
967 (prog2
968 (and
969 ;; Possibly the old bookmark file, "~/.emacs-bkmrks", needs
970 ;; to be renamed.
971 (file-exists-p bookmark-old-default-file)
972 (not (file-exists-p bookmark-default-file))
973 (rename-file bookmark-old-default-file
974 bookmark-default-file))
975 ;; return t so the `and' will continue...
976 t)
977
978 (file-readable-p bookmark-default-file)
979 (bookmark-load bookmark-default-file t t)
980 (setq bookmarks-already-loaded t)))
981
982
983 (defun bookmark-maybe-sort-alist ()
984 "Return `bookmark-alist' for display.
985 If `bookmark-sort-flag' is non-nil, then return a sorted copy of the alist."
986 (if bookmark-sort-flag
987 (sort (copy-alist bookmark-alist)
988 (function
989 (lambda (x y) (string-lessp (car x) (car y)))))
990 bookmark-alist))
991
992
993 (defvar bookmark-after-jump-hook nil
994 "Hook run after `bookmark-jump' jumps to a bookmark.
995 Useful for example to unhide text in `outline-mode'.")
996
997 (defun bookmark--jump-via (bookmark-name-or-record display-function)
998 "Handle BOOKMARK-NAME-OR-RECORD, then call DISPLAY-FUNCTION with
999 current buffer as argument.
1000
1001 After calling DISPLAY-FUNCTION, set window point to the point specified
1002 by BOOKMARK-NAME-OR-RECORD, if necessary, run `bookmark-after-jump-hook',
1003 and then show any annotations for this bookmark."
1004 (bookmark-handle-bookmark bookmark-name-or-record)
1005 (save-current-buffer
1006 (funcall display-function (current-buffer)))
1007 (let ((win (get-buffer-window (current-buffer) 0)))
1008 (if win (set-window-point win (point))))
1009 ;; FIXME: we used to only run bookmark-after-jump-hook in
1010 ;; `bookmark-jump' itself, but in none of the other commands.
1011 (run-hooks 'bookmark-after-jump-hook)
1012 (if bookmark-automatically-show-annotations
1013 ;; if there is an annotation for this bookmark,
1014 ;; show it in a buffer.
1015 (bookmark-show-annotation bookmark-name-or-record)))
1016
1017
1018 ;;;###autoload
1019 (defun bookmark-jump (bookmark &optional display-func)
1020 "Jump to bookmark BOOKMARK (a point in some file).
1021 You may have a problem using this function if the value of variable
1022 `bookmark-alist' is nil. If that happens, you need to load in some
1023 bookmarks. See help on function `bookmark-load' for more about
1024 this.
1025
1026 If the file pointed to by BOOKMARK no longer exists, you will be asked
1027 if you wish to give the bookmark a new location, and `bookmark-jump'
1028 will then jump to the new location, as well as recording it in place
1029 of the old one in the permanent bookmark record.
1030
1031 BOOKMARK is usually a bookmark name (a string). It can also be a
1032 bookmark record, but this is usually only done by programmatic callers.
1033
1034 If DISPLAY-FUNC is non-nil, it is a function to invoke to display the
1035 bookmark. It defaults to `switch-to-buffer'. A typical value for
1036 DISPLAY-FUNC would be `switch-to-buffer-other-window'."
1037 (interactive
1038 (list (bookmark-completing-read "Jump to bookmark"
1039 bookmark-current-bookmark)))
1040 (unless bookmark
1041 (error "No bookmark specified"))
1042 (bookmark-maybe-historicize-string bookmark)
1043 (bookmark--jump-via bookmark (or display-func 'switch-to-buffer)))
1044
1045
1046 ;;;###autoload
1047 (defun bookmark-jump-other-window (bookmark)
1048 "Jump to BOOKMARK in another window. See `bookmark-jump' for more."
1049 (interactive
1050 (list (bookmark-completing-read "Jump to bookmark (in another window)"
1051 bookmark-current-bookmark)))
1052 (bookmark-jump bookmark 'switch-to-buffer-other-window))
1053
1054
1055 (defun bookmark-jump-noselect (bookmark)
1056 "Return the location pointed to by BOOKMARK (see `bookmark-jump').
1057 The return value has the form (BUFFER . POINT).
1058
1059 Note: this function is deprecated and is present for Emacs 22
1060 compatibility only."
1061 (declare (obsolete bookmark-handle-bookmark "23.1"))
1062 (save-excursion
1063 (bookmark-handle-bookmark bookmark)
1064 (cons (current-buffer) (point))))
1065
1066 (defun bookmark-handle-bookmark (bookmark-name-or-record)
1067 "Call BOOKMARK-NAME-OR-RECORD's handler or `bookmark-default-handler'
1068 if it has none. This changes current buffer and point and returns nil,
1069 or signals a `file-error'.
1070
1071 If BOOKMARK-NAME-OR-RECORD has no file, this is a no-op. If
1072 BOOKMARK-NAME-OR-RECORD has a file, but that file no longer exists,
1073 then offer interactively to relocate BOOKMARK-NAME-OR-RECORD."
1074 (condition-case err
1075 (funcall (or (bookmark-get-handler bookmark-name-or-record)
1076 'bookmark-default-handler)
1077 (bookmark-get-bookmark bookmark-name-or-record))
1078 (bookmark-error-no-filename ;file-error
1079 ;; We were unable to find the marked file, so ask if user wants to
1080 ;; relocate the bookmark, else remind them to consider deletion.
1081 (when (stringp bookmark-name-or-record)
1082 ;; `bookmark-name-or-record' can be either a bookmark name
1083 ;; (from `bookmark-alist') or a bookmark object. If it's an
1084 ;; object, we assume it's a bookmark used internally by some
1085 ;; other package.
1086 (let ((file (bookmark-get-filename bookmark-name-or-record)))
1087 (when file ;Don't know how to relocate if there's no `file'.
1088 ;; If file is not a dir, directory-file-name just returns file.
1089 (let ((display-name (directory-file-name file)))
1090 (ding)
1091 ;; Dialog boxes can accept a file target, but usually don't
1092 ;; know how to accept a directory target (at least, this
1093 ;; is true in Gnome on GNU/Linux, and Bug#4230 says it's
1094 ;; true on Windows as well). So we suppress file dialogs
1095 ;; when relocating.
1096 (let ((use-dialog-box nil)
1097 (use-file-dialog nil))
1098 (if (y-or-n-p (concat display-name " nonexistent. Relocate \""
1099 bookmark-name-or-record "\"? "))
1100 (progn
1101 (bookmark-relocate bookmark-name-or-record)
1102 ;; Try again.
1103 (funcall (or (bookmark-get-handler bookmark-name-or-record)
1104 'bookmark-default-handler)
1105 (bookmark-get-bookmark bookmark-name-or-record)))
1106 (message
1107 "Bookmark not relocated; consider removing it (%s)."
1108 bookmark-name-or-record)
1109 (signal (car err) (cdr err))))))))))
1110 ;; Added by db.
1111 (when (stringp bookmark-name-or-record)
1112 (setq bookmark-current-bookmark bookmark-name-or-record))
1113 nil)
1114
1115 (put 'bookmark-error-no-filename
1116 'error-conditions
1117 '(error bookmark-errors bookmark-error-no-filename))
1118 (put 'bookmark-error-no-filename
1119 'error-message
1120 "Bookmark has no associated file (or directory)")
1121
1122 (defun bookmark-default-handler (bmk-record)
1123 "Default handler to jump to a particular bookmark location.
1124 BMK-RECORD is a bookmark record, not a bookmark name (i.e., not a string).
1125 Changes current buffer and point and returns nil, or signals a `file-error'."
1126 (let ((file (bookmark-get-filename bmk-record))
1127 (buf (bookmark-prop-get bmk-record 'buffer))
1128 (forward-str (bookmark-get-front-context-string bmk-record))
1129 (behind-str (bookmark-get-rear-context-string bmk-record))
1130 (place (bookmark-get-position bmk-record)))
1131 (set-buffer
1132 (cond
1133 ((and file (file-readable-p file) (not (buffer-live-p buf)))
1134 (find-file-noselect file))
1135 ;; No file found. See if buffer BUF have been created.
1136 ((and buf (get-buffer buf)))
1137 (t ;; If not, raise error.
1138 (signal 'bookmark-error-no-filename (list 'stringp file)))))
1139 (if place (goto-char place))
1140 ;; Go searching forward first. Then, if forward-str exists and
1141 ;; was found in the file, we can search backward for behind-str.
1142 ;; Rationale is that if text was inserted between the two in the
1143 ;; file, it's better to be put before it so you can read it,
1144 ;; rather than after and remain perhaps unaware of the changes.
1145 (when (and forward-str (search-forward forward-str (point-max) t))
1146 (goto-char (match-beginning 0)))
1147 (when (and behind-str (search-backward behind-str (point-min) t))
1148 (goto-char (match-end 0)))
1149 nil))
1150
1151 ;;;###autoload
1152 (defun bookmark-relocate (bookmark-name)
1153 "Relocate BOOKMARK-NAME to another file, reading file name with minibuffer.
1154
1155 This makes an already existing bookmark point to that file, instead of
1156 the one it used to point at. Useful when a file has been renamed
1157 after a bookmark was set in it."
1158 (interactive (list (bookmark-completing-read "Bookmark to relocate")))
1159 (bookmark-maybe-historicize-string bookmark-name)
1160 (bookmark-maybe-load-default-file)
1161 (let* ((bmrk-filename (bookmark-get-filename bookmark-name))
1162 (newloc (abbreviate-file-name
1163 (expand-file-name
1164 (read-file-name
1165 (format "Relocate %s to: " bookmark-name)
1166 (file-name-directory bmrk-filename))))))
1167 (bookmark-set-filename bookmark-name newloc)
1168 (setq bookmark-alist-modification-count
1169 (1+ bookmark-alist-modification-count))
1170 (if (bookmark-time-to-save-p)
1171 (bookmark-save))
1172 (bookmark-bmenu-surreptitiously-rebuild-list)))
1173
1174
1175 ;;;###autoload
1176 (defun bookmark-insert-location (bookmark-name &optional no-history)
1177 "Insert the name of the file associated with BOOKMARK-NAME.
1178
1179 Optional second arg NO-HISTORY means don't record this in the
1180 minibuffer history list `bookmark-history'."
1181 (interactive (list (bookmark-completing-read "Insert bookmark location")))
1182 (or no-history (bookmark-maybe-historicize-string bookmark-name))
1183 (insert (bookmark-location bookmark-name)))
1184
1185 ;;;###autoload
1186 (defalias 'bookmark-locate 'bookmark-insert-location)
1187
1188 (defun bookmark-location (bookmark-name-or-record)
1189 "Return a description of the location of BOOKMARK-NAME-OR-RECORD."
1190 (bookmark-maybe-load-default-file)
1191 ;; We could call the `handler' and ask for it to construct a description
1192 ;; dynamically: it would open up several new possibilities, but it
1193 ;; would have the major disadvantage of forcing to load each and
1194 ;; every handler when the user calls bookmark-menu.
1195 (or (bookmark-prop-get bookmark-name-or-record 'location)
1196 (bookmark-get-filename bookmark-name-or-record)
1197 "-- Unknown location --"))
1198
1199
1200 ;;;###autoload
1201 (defun bookmark-rename (old-name &optional new-name)
1202 "Change the name of OLD-NAME bookmark to NEW-NAME name.
1203 If called from keyboard, prompt for OLD-NAME and NEW-NAME.
1204 If called from menubar, select OLD-NAME from a menu and prompt for NEW-NAME.
1205
1206 If called from Lisp, prompt for NEW-NAME if only OLD-NAME was passed
1207 as an argument. If called with two strings, then no prompting is done.
1208 You must pass at least OLD-NAME when calling from Lisp.
1209
1210 While you are entering the new name, consecutive C-w's insert
1211 consecutive words from the text of the buffer into the new bookmark
1212 name."
1213 (interactive (list (bookmark-completing-read "Old bookmark name")))
1214 (bookmark-maybe-historicize-string old-name)
1215 (bookmark-maybe-load-default-file)
1216
1217 (setq bookmark-yank-point (point))
1218 (setq bookmark-current-buffer (current-buffer))
1219 (let ((final-new-name
1220 (or new-name ; use second arg, if non-nil
1221 (read-from-minibuffer
1222 "New name: "
1223 nil
1224 (let ((now-map (copy-keymap minibuffer-local-map)))
1225 (define-key now-map "\C-w" 'bookmark-yank-word)
1226 now-map)
1227 nil
1228 'bookmark-history))))
1229 (bookmark-set-name old-name final-new-name)
1230 (setq bookmark-current-bookmark final-new-name)
1231 (bookmark-bmenu-surreptitiously-rebuild-list)
1232 (setq bookmark-alist-modification-count
1233 (1+ bookmark-alist-modification-count))
1234 (if (bookmark-time-to-save-p)
1235 (bookmark-save))))
1236
1237
1238 ;;;###autoload
1239 (defun bookmark-insert (bookmark-name)
1240 "Insert the text of the file pointed to by bookmark BOOKMARK-NAME.
1241 BOOKMARK-NAME is a bookmark name (a string), not a bookmark record.
1242
1243 You may have a problem using this function if the value of variable
1244 `bookmark-alist' is nil. If that happens, you need to load in some
1245 bookmarks. See help on function `bookmark-load' for more about
1246 this."
1247 (interactive (list (bookmark-completing-read "Insert bookmark contents")))
1248 (bookmark-maybe-historicize-string bookmark-name)
1249 (bookmark-maybe-load-default-file)
1250 (let ((orig-point (point))
1251 (str-to-insert
1252 (save-current-buffer
1253 (bookmark-handle-bookmark bookmark-name)
1254 (buffer-string))))
1255 (insert str-to-insert)
1256 (push-mark)
1257 (goto-char orig-point)))
1258
1259
1260 ;;;###autoload
1261 (defun bookmark-delete (bookmark-name &optional batch)
1262 "Delete BOOKMARK-NAME from the bookmark list.
1263
1264 Removes only the first instance of a bookmark with that name. If
1265 there are one or more other bookmarks with the same name, they will
1266 not be deleted. Defaults to the \"current\" bookmark (that is, the
1267 one most recently used in this file, if any).
1268 Optional second arg BATCH means don't update the bookmark list buffer,
1269 probably because we were called from there."
1270 (interactive
1271 (list (bookmark-completing-read "Delete bookmark"
1272 bookmark-current-bookmark)))
1273 (bookmark-maybe-historicize-string bookmark-name)
1274 (bookmark-maybe-load-default-file)
1275 (let ((will-go (bookmark-get-bookmark bookmark-name 'noerror)))
1276 (setq bookmark-alist (delq will-go bookmark-alist))
1277 ;; Added by db, nil bookmark-current-bookmark if the last
1278 ;; occurrence has been deleted
1279 (or (bookmark-get-bookmark bookmark-current-bookmark 'noerror)
1280 (setq bookmark-current-bookmark nil)))
1281 (unless batch
1282 (bookmark-bmenu-surreptitiously-rebuild-list))
1283 (setq bookmark-alist-modification-count
1284 (1+ bookmark-alist-modification-count))
1285 (when (bookmark-time-to-save-p)
1286 (bookmark-save)))
1287
1288
1289 (defun bookmark-time-to-save-p (&optional final-time)
1290 "Return t if it is time to save bookmarks to disk, nil otherwise.
1291 Optional argument FINAL-TIME means this is being called when Emacs
1292 is being killed, so save even if `bookmark-save-flag' is a number and
1293 is greater than `bookmark-alist-modification-count'."
1294 ;; By Gregory M. Saunders <saunders{_AT_}cis.ohio-state.edu>
1295 (cond (final-time
1296 (and (> bookmark-alist-modification-count 0)
1297 bookmark-save-flag))
1298 ((numberp bookmark-save-flag)
1299 (>= bookmark-alist-modification-count bookmark-save-flag))
1300 (t
1301 nil)))
1302
1303
1304 ;;;###autoload
1305 (defun bookmark-write ()
1306 "Write bookmarks to a file (reading the file name with the minibuffer).
1307 Don't use this in Lisp programs; use `bookmark-save' instead."
1308 (interactive)
1309 (bookmark-maybe-load-default-file)
1310 (bookmark-save t))
1311
1312
1313 ;;;###autoload
1314 (defun bookmark-save (&optional parg file)
1315 "Save currently defined bookmarks.
1316 Saves by default in the file defined by the variable
1317 `bookmark-default-file'. With a prefix arg, save it in file FILE
1318 \(second argument).
1319
1320 If you are calling this from Lisp, the two arguments are PARG and
1321 FILE, and if you just want it to write to the default file, then
1322 pass no arguments. Or pass in nil and FILE, and it will save in FILE
1323 instead. If you pass in one argument, and it is non-nil, then the
1324 user will be interactively queried for a file to save in.
1325
1326 When you want to load in the bookmarks from a file, use
1327 `bookmark-load', \\[bookmark-load]. That function will prompt you
1328 for a file, defaulting to the file defined by variable
1329 `bookmark-default-file'."
1330 (interactive "P")
1331 (bookmark-maybe-load-default-file)
1332 (cond
1333 ((and (null parg) (null file))
1334 ;;whether interactive or not, write to default file
1335 (bookmark-write-file bookmark-default-file))
1336 ((and (null parg) file)
1337 ;;whether interactive or not, write to given file
1338 (bookmark-write-file file))
1339 ((and parg (not file))
1340 ;;have been called interactively w/ prefix arg
1341 (let ((file (read-file-name "File to save bookmarks in: ")))
1342 (bookmark-write-file file)))
1343 (t ; someone called us with prefix-arg *and* a file, so just write to file
1344 (bookmark-write-file file)))
1345 ;; signal that we have synced the bookmark file by setting this to
1346 ;; 0. If there was an error at any point before, it will not get
1347 ;; set, which is what we want.
1348 (setq bookmark-alist-modification-count 0))
1349
1350
1351 \f
1352 (defun bookmark-write-file (file)
1353 "Write `bookmark-alist' to FILE."
1354 (bookmark-maybe-message "Saving bookmarks to file %s..." file)
1355 (with-current-buffer (get-buffer-create " *Bookmarks*")
1356 (goto-char (point-min))
1357 (delete-region (point-min) (point-max))
1358 (let ((print-length nil)
1359 (print-level nil)
1360 ;; See bug #12503 for why we bind `print-circle'. Users
1361 ;; can define their own bookmark types, which can result in
1362 ;; arbitrary Lisp objects being stored in bookmark records,
1363 ;; and some users create objects containing circularities.
1364 (print-circle t))
1365 (bookmark-insert-file-format-version-stamp)
1366 (insert "(")
1367 ;; Rather than a single call to `pp' we make one per bookmark.
1368 ;; Apparently `pp' has a poor algorithmic complexity, so this
1369 ;; scales a lot better. bug#4485.
1370 (dolist (i bookmark-alist) (pp i (current-buffer)))
1371 (insert ")")
1372 (let ((version-control
1373 (cond
1374 ((null bookmark-version-control) nil)
1375 ((eq 'never bookmark-version-control) 'never)
1376 ((eq 'nospecial bookmark-version-control) version-control)
1377 (t t))))
1378 (condition-case nil
1379 (write-region (point-min) (point-max) file)
1380 (file-error (message "Can't write %s" file)))
1381 (kill-buffer (current-buffer))
1382 (bookmark-maybe-message
1383 "Saving bookmarks to file %s...done" file)))))
1384
1385
1386 (defun bookmark-import-new-list (new-list)
1387 "Add NEW-LIST of bookmarks to `bookmark-alist'.
1388 Rename new bookmarks as needed using suffix \"<N>\" (N=1,2,3...), when
1389 they conflict with existing bookmark names."
1390 (let ((names (bookmark-all-names)))
1391 (dolist (full-record new-list)
1392 (bookmark-maybe-rename full-record names)
1393 (setq bookmark-alist (nconc bookmark-alist (list full-record)))
1394 (push (bookmark-name-from-full-record full-record) names))))
1395
1396
1397 (defun bookmark-maybe-rename (full-record names)
1398 "Rename bookmark FULL-RECORD if its current name is already used.
1399 This is a helper for `bookmark-import-new-list'."
1400 (let ((found-name (bookmark-name-from-full-record full-record)))
1401 (if (member found-name names)
1402 ;; We've got a conflict, so generate a new name
1403 (let ((count 2)
1404 (new-name found-name))
1405 (while (member new-name names)
1406 (setq new-name (concat found-name (format "<%d>" count)))
1407 (setq count (1+ count)))
1408 (bookmark-set-name full-record new-name)))))
1409
1410
1411 ;;;###autoload
1412 (defun bookmark-load (file &optional overwrite no-msg)
1413 "Load bookmarks from FILE (which must be in bookmark format).
1414 Appends loaded bookmarks to the front of the list of bookmarks. If
1415 optional second argument OVERWRITE is non-nil, existing bookmarks are
1416 destroyed. Optional third arg NO-MSG means don't display any messages
1417 while loading.
1418
1419 If you load a file that doesn't contain a proper bookmark alist, you
1420 will corrupt Emacs's bookmark list. Generally, you should only load
1421 in files that were created with the bookmark functions in the first
1422 place. Your own personal bookmark file, `~/.emacs.bmk', is
1423 maintained automatically by Emacs; you shouldn't need to load it
1424 explicitly.
1425
1426 If you load a file containing bookmarks with the same names as
1427 bookmarks already present in your Emacs, the new bookmarks will get
1428 unique numeric suffixes \"<2>\", \"<3>\", ... following the same
1429 method buffers use to resolve name collisions."
1430 (interactive
1431 (list (read-file-name
1432 (format "Load bookmarks from: (%s) "
1433 bookmark-default-file)
1434 ;;Default might not be used often,
1435 ;;but there's no better default, and
1436 ;;I guess it's better than none at all.
1437 "~/" bookmark-default-file 'confirm)))
1438 (setq file (abbreviate-file-name (expand-file-name file)))
1439 (if (not (file-readable-p file))
1440 (error "Cannot read bookmark file %s" file)
1441 (if (null no-msg)
1442 (bookmark-maybe-message "Loading bookmarks from %s..." file))
1443 (with-current-buffer (let ((enable-local-variables nil))
1444 (find-file-noselect file))
1445 (goto-char (point-min))
1446 (bookmark-maybe-upgrade-file-format)
1447 (let ((blist (bookmark-alist-from-buffer)))
1448 (if (listp blist)
1449 (progn
1450 (if overwrite
1451 (progn
1452 (setq bookmark-alist blist)
1453 (setq bookmark-alist-modification-count 0))
1454 ;; else
1455 (bookmark-import-new-list blist)
1456 (setq bookmark-alist-modification-count
1457 (1+ bookmark-alist-modification-count)))
1458 (if (string-equal
1459 (abbreviate-file-name
1460 (expand-file-name bookmark-default-file))
1461 file)
1462 (setq bookmarks-already-loaded t))
1463 (bookmark-bmenu-surreptitiously-rebuild-list))
1464 (error "Invalid bookmark list in %s" file)))
1465 (kill-buffer (current-buffer)))
1466 (if (null no-msg)
1467 (bookmark-maybe-message "Loading bookmarks from %s...done" file))))
1468
1469
1470 \f
1471 ;;; Code supporting the dired-like bookmark menu.
1472 ;; Prefix is "bookmark-bmenu" for "buffer-menu":
1473
1474
1475 (defvar bookmark-bmenu-hidden-bookmarks ())
1476
1477
1478 (defvar bookmark-bmenu-mode-map
1479 (let ((map (make-keymap)))
1480 (set-keymap-parent map special-mode-map)
1481 (define-key map "v" 'bookmark-bmenu-select)
1482 (define-key map "w" 'bookmark-bmenu-locate)
1483 (define-key map "2" 'bookmark-bmenu-2-window)
1484 (define-key map "1" 'bookmark-bmenu-1-window)
1485 (define-key map "j" 'bookmark-bmenu-this-window)
1486 (define-key map "\C-c\C-c" 'bookmark-bmenu-this-window)
1487 (define-key map "f" 'bookmark-bmenu-this-window)
1488 (define-key map "\C-m" 'bookmark-bmenu-this-window)
1489 (define-key map "o" 'bookmark-bmenu-other-window)
1490 (define-key map "\C-o" 'bookmark-bmenu-switch-other-window)
1491 (define-key map "s" 'bookmark-bmenu-save)
1492 (define-key map "k" 'bookmark-bmenu-delete)
1493 (define-key map "\C-d" 'bookmark-bmenu-delete-backwards)
1494 (define-key map "x" 'bookmark-bmenu-execute-deletions)
1495 (define-key map "d" 'bookmark-bmenu-delete)
1496 (define-key map " " 'next-line)
1497 (define-key map "n" 'next-line)
1498 (define-key map "p" 'previous-line)
1499 (define-key map "\177" 'bookmark-bmenu-backup-unmark)
1500 (define-key map "u" 'bookmark-bmenu-unmark)
1501 (define-key map "m" 'bookmark-bmenu-mark)
1502 (define-key map "l" 'bookmark-bmenu-load)
1503 (define-key map "r" 'bookmark-bmenu-rename)
1504 (define-key map "R" 'bookmark-bmenu-relocate)
1505 (define-key map "t" 'bookmark-bmenu-toggle-filenames)
1506 (define-key map "a" 'bookmark-bmenu-show-annotation)
1507 (define-key map "A" 'bookmark-bmenu-show-all-annotations)
1508 (define-key map "e" 'bookmark-bmenu-edit-annotation)
1509 (define-key map "/" 'bookmark-bmenu-search)
1510 (define-key map [mouse-2] 'bookmark-bmenu-other-window-with-mouse)
1511 map))
1512
1513 ;; Bookmark Buffer Menu mode is suitable only for specially formatted
1514 ;; data.
1515 (put 'bookmark-bmenu-mode 'mode-class 'special)
1516
1517
1518 ;; todo: need to display whether or not bookmark exists as a buffer in
1519 ;; flag column.
1520
1521 ;; Format:
1522 ;; FLAGS BOOKMARK [ LOCATION ]
1523
1524
1525 (defun bookmark-bmenu-surreptitiously-rebuild-list ()
1526 "Rebuild the Bookmark List if it exists.
1527 Don't affect the buffer ring order."
1528 (if (get-buffer "*Bookmark List*")
1529 (save-excursion
1530 (save-window-excursion
1531 (bookmark-bmenu-list)))))
1532
1533
1534 ;;;###autoload
1535 (defun bookmark-bmenu-list ()
1536 "Display a list of existing bookmarks.
1537 The list is displayed in a buffer named `*Bookmark List*'.
1538 The leftmost column displays a D if the bookmark is flagged for
1539 deletion, or > if it is flagged for displaying."
1540 (interactive)
1541 (bookmark-maybe-load-default-file)
1542 (let ((buf (get-buffer-create "*Bookmark List*")))
1543 (if (called-interactively-p 'interactive)
1544 (switch-to-buffer buf)
1545 (set-buffer buf)))
1546 (let ((inhibit-read-only t))
1547 (erase-buffer)
1548 (if (not bookmark-bmenu-use-header-line)
1549 (insert "% Bookmark\n- --------\n"))
1550 (add-text-properties (point-min) (point)
1551 '(font-lock-face bookmark-menu-heading))
1552 (dolist (full-record (bookmark-maybe-sort-alist))
1553 (let ((name (bookmark-name-from-full-record full-record))
1554 (annotation (bookmark-get-annotation full-record))
1555 (start (point))
1556 end)
1557 ;; if a bookmark has an annotation, prepend a "*"
1558 ;; in the list of bookmarks.
1559 (insert (if (and annotation (not (string-equal annotation "")))
1560 " *" " ")
1561 name)
1562 (setq end (point))
1563 (put-text-property
1564 (+ bookmark-bmenu-marks-width start) end 'bookmark-name-prop name)
1565 (when (display-mouse-p)
1566 (add-text-properties
1567 (+ bookmark-bmenu-marks-width start) end
1568 '(font-lock-face bookmark-menu-bookmark
1569 mouse-face highlight
1570 follow-link t
1571 help-echo "mouse-2: go to this bookmark in other window")))
1572 (insert "\n")))
1573 (set-buffer-modified-p (not (= bookmark-alist-modification-count 0)))
1574 (goto-char (point-min))
1575 (bookmark-bmenu-mode)
1576 (if bookmark-bmenu-use-header-line
1577 (bookmark-bmenu-set-header)
1578 (forward-line bookmark-bmenu-inline-header-height))
1579 (when (and bookmark-alist bookmark-bmenu-toggle-filenames)
1580 (bookmark-bmenu-toggle-filenames t))))
1581
1582 ;;;###autoload
1583 (defalias 'list-bookmarks 'bookmark-bmenu-list)
1584 ;;;###autoload
1585 (defalias 'edit-bookmarks 'bookmark-bmenu-list)
1586
1587 (defun bookmark-bmenu-set-header ()
1588 "Sets the immutable header line."
1589 (let ((header (concat "%% " "Bookmark")))
1590 (when bookmark-bmenu-toggle-filenames
1591 (setq header (concat header
1592 (make-string (- bookmark-bmenu-file-column
1593 (- (length header) 3)) ?\s)
1594 "File")))
1595 (let ((pos 0))
1596 (while (string-match "[ \t\n]+" header pos)
1597 (setq pos (match-end 0))
1598 (put-text-property (match-beginning 0) pos 'display
1599 (list 'space :align-to (- pos 1))
1600 header)))
1601 (put-text-property 0 2 'face 'fixed-pitch header)
1602 (setq header (concat (propertize " " 'display '(space :align-to 0))
1603 header))
1604 ;; Code derived from `buff-menu.el'.
1605 (setq header-line-format header)))
1606
1607 (define-derived-mode bookmark-bmenu-mode special-mode "Bookmark Menu"
1608 "Major mode for editing a list of bookmarks.
1609 Each line describes one of the bookmarks in Emacs.
1610 Letters do not insert themselves; instead, they are commands.
1611 Bookmark names preceded by a \"*\" have annotations.
1612 \\<bookmark-bmenu-mode-map>
1613 \\[bookmark-bmenu-mark] -- mark bookmark to be displayed.
1614 \\[bookmark-bmenu-select] -- select bookmark of line point is on.
1615 Also show bookmarks marked using m in other windows.
1616 \\[bookmark-bmenu-toggle-filenames] -- toggle displaying of filenames (they may obscure long bookmark names).
1617 \\[bookmark-bmenu-locate] -- display (in minibuffer) location of this bookmark.
1618 \\[bookmark-bmenu-1-window] -- select this bookmark in full-frame window.
1619 \\[bookmark-bmenu-2-window] -- select this bookmark in one window,
1620 together with bookmark selected before this one in another window.
1621 \\[bookmark-bmenu-this-window] -- select this bookmark in place of the bookmark menu buffer.
1622 \\[bookmark-bmenu-other-window] -- select this bookmark in another window,
1623 so the bookmark menu bookmark remains visible in its window.
1624 \\[bookmark-bmenu-switch-other-window] -- switch the other window to this bookmark.
1625 \\[bookmark-bmenu-rename] -- rename this bookmark (prompts for new name).
1626 \\[bookmark-bmenu-relocate] -- relocate this bookmark's file (prompts for new file).
1627 \\[bookmark-bmenu-delete] -- mark this bookmark to be deleted, and move down.
1628 \\[bookmark-bmenu-delete-backwards] -- mark this bookmark to be deleted, and move up.
1629 \\[bookmark-bmenu-execute-deletions] -- delete bookmarks marked with `\\[bookmark-bmenu-delete]'.
1630 \\[bookmark-bmenu-save] -- save the current bookmark list in the default file.
1631 With a prefix arg, prompts for a file to save in.
1632 \\[bookmark-bmenu-load] -- load in a file of bookmarks (prompts for file.)
1633 \\[bookmark-bmenu-unmark] -- remove all kinds of marks from current line.
1634 With prefix argument, also move up one line.
1635 \\[bookmark-bmenu-backup-unmark] -- back up a line and remove marks.
1636 \\[bookmark-bmenu-show-annotation] -- show the annotation, if it exists, for the current bookmark
1637 in another buffer.
1638 \\[bookmark-bmenu-show-all-annotations] -- show the annotations of all bookmarks in another buffer.
1639 \\[bookmark-bmenu-edit-annotation] -- edit the annotation for the current bookmark."
1640 (setq truncate-lines t)
1641 (setq buffer-read-only t))
1642
1643
1644 (defun bookmark-bmenu-toggle-filenames (&optional show)
1645 "Toggle whether filenames are shown in the bookmark list.
1646 Optional argument SHOW means show them unconditionally."
1647 (interactive)
1648 (cond
1649 (show
1650 (setq bookmark-bmenu-toggle-filenames nil)
1651 (bookmark-bmenu-show-filenames)
1652 (setq bookmark-bmenu-toggle-filenames t))
1653 (bookmark-bmenu-toggle-filenames
1654 (bookmark-bmenu-hide-filenames)
1655 (setq bookmark-bmenu-toggle-filenames nil))
1656 (t
1657 (bookmark-bmenu-show-filenames)
1658 (setq bookmark-bmenu-toggle-filenames t)))
1659 (when bookmark-bmenu-use-header-line
1660 (bookmark-bmenu-set-header)))
1661
1662
1663 (defun bookmark-bmenu-show-filenames (&optional force)
1664 "In an interactive bookmark list, show filenames along with bookmarks.
1665 Non-nil FORCE forces a redisplay showing the filenames. FORCE is used
1666 mainly for debugging, and should not be necessary in normal use."
1667 (if (and (not force) bookmark-bmenu-toggle-filenames)
1668 nil ;already shown, so do nothing
1669 (with-buffer-modified-unmodified
1670 (save-excursion
1671 (save-window-excursion
1672 (goto-char (point-min))
1673 (if (not bookmark-bmenu-use-header-line)
1674 (forward-line bookmark-bmenu-inline-header-height))
1675 (setq bookmark-bmenu-hidden-bookmarks ())
1676 (let ((inhibit-read-only t))
1677 (while (< (point) (point-max))
1678 (let ((bmrk (bookmark-bmenu-bookmark)))
1679 (push bmrk bookmark-bmenu-hidden-bookmarks)
1680 (let ((start (line-end-position)))
1681 (move-to-column bookmark-bmenu-file-column t)
1682 ;; Strip off `mouse-face' from the white spaces region.
1683 (if (display-mouse-p)
1684 (remove-text-properties start (point)
1685 '(mouse-face nil help-echo nil))))
1686 (delete-region (point) (progn (end-of-line) (point)))
1687 (insert " ")
1688 ;; Pass the NO-HISTORY arg:
1689 (bookmark-insert-location bmrk t)
1690 (forward-line 1)))))))))
1691
1692
1693 (defun bookmark-bmenu-hide-filenames (&optional force)
1694 "In an interactive bookmark list, hide the filenames of the bookmarks.
1695 Non-nil FORCE forces a redisplay showing the filenames. FORCE is used
1696 mainly for debugging, and should not be necessary in normal use."
1697 (when (and (not force) bookmark-bmenu-toggle-filenames)
1698 ;; nothing to hide if above is nil
1699 (with-buffer-modified-unmodified
1700 (save-excursion
1701 (goto-char (point-min))
1702 (if (not bookmark-bmenu-use-header-line)
1703 (forward-line bookmark-bmenu-inline-header-height))
1704 (setq bookmark-bmenu-hidden-bookmarks
1705 (nreverse bookmark-bmenu-hidden-bookmarks))
1706 (let ((inhibit-read-only t))
1707 (while bookmark-bmenu-hidden-bookmarks
1708 (move-to-column bookmark-bmenu-marks-width t)
1709 (bookmark-kill-line)
1710 (let ((name (pop bookmark-bmenu-hidden-bookmarks))
1711 (start (point)))
1712 (insert name)
1713 (put-text-property start (point) 'bookmark-name-prop name)
1714 (if (display-mouse-p)
1715 (add-text-properties
1716 start (point)
1717 '(font-lock-face bookmark-menu-bookmark
1718 mouse-face highlight
1719 follow-link t help-echo
1720 "mouse-2: go to this bookmark in other window"))))
1721 (forward-line 1)))))))
1722
1723
1724 (defun bookmark-bmenu-ensure-position ()
1725 "If point is not on a bookmark line, move it to one.
1726 If before the first bookmark line, move to the first; if after the
1727 last full line, move to the last full line. The return value is undefined."
1728 (cond ((and (not bookmark-bmenu-use-header-line)
1729 (< (count-lines (point-min) (point))
1730 bookmark-bmenu-inline-header-height))
1731 (goto-char (point-min))
1732 (forward-line bookmark-bmenu-inline-header-height))
1733 ((and (bolp) (eobp))
1734 (beginning-of-line 0))))
1735
1736
1737 (defun bookmark-bmenu-bookmark ()
1738 "Return the bookmark for this line in an interactive bookmark list buffer."
1739 (bookmark-bmenu-ensure-position)
1740 (save-excursion
1741 (beginning-of-line)
1742 (forward-char bookmark-bmenu-marks-width)
1743 (get-text-property (point) 'bookmark-name-prop)))
1744
1745
1746 (defun bookmark-show-annotation (bookmark-name-or-record)
1747 "Display the annotation for BOOKMARK-NAME-OR-RECORD in a buffer,
1748 if an annotation exists."
1749 (let ((annotation (bookmark-get-annotation bookmark-name-or-record)))
1750 (when (and annotation (not (string-equal annotation "")))
1751 (save-excursion
1752 (let ((old-buf (current-buffer)))
1753 (pop-to-buffer (get-buffer-create "*Bookmark Annotation*") t)
1754 (delete-region (point-min) (point-max))
1755 (insert annotation)
1756 (goto-char (point-min))
1757 (switch-to-buffer-other-window old-buf))))))
1758
1759
1760 (defun bookmark-show-all-annotations ()
1761 "Display the annotations for all bookmarks in a buffer."
1762 (save-selected-window
1763 (pop-to-buffer (get-buffer-create "*Bookmark Annotation*") t)
1764 (delete-region (point-min) (point-max))
1765 (dolist (full-record bookmark-alist)
1766 (let* ((name (bookmark-name-from-full-record full-record))
1767 (ann (bookmark-get-annotation full-record)))
1768 (insert (concat name ":\n"))
1769 (if (and ann (not (string-equal ann "")))
1770 ;; insert the annotation, indented by 4 spaces.
1771 (progn
1772 (save-excursion (insert ann) (unless (bolp)
1773 (insert "\n")))
1774 (while (< (point) (point-max))
1775 (beginning-of-line) ; paranoia
1776 (insert " ")
1777 (forward-line)
1778 (end-of-line))))))
1779 (goto-char (point-min))))
1780
1781
1782 (defun bookmark-bmenu-mark ()
1783 "Mark bookmark on this line to be displayed by \\<bookmark-bmenu-mode-map>\\[bookmark-bmenu-select]."
1784 (interactive)
1785 (beginning-of-line)
1786 (bookmark-bmenu-ensure-position)
1787 (with-buffer-modified-unmodified
1788 (let ((inhibit-read-only t))
1789 (delete-char 1)
1790 (insert ?>)
1791 (forward-line 1)
1792 (bookmark-bmenu-ensure-position))))
1793
1794
1795 (defun bookmark-bmenu-select ()
1796 "Select this line's bookmark; also display bookmarks marked with `>'.
1797 You can mark bookmarks with the \\<bookmark-bmenu-mode-map>\\[bookmark-bmenu-mark] command."
1798 (interactive)
1799 (let ((bmrk (bookmark-bmenu-bookmark))
1800 (menu (current-buffer))
1801 (others ())
1802 tem)
1803 (goto-char (point-min))
1804 (while (re-search-forward "^>" nil t)
1805 (setq tem (bookmark-bmenu-bookmark))
1806 (let ((inhibit-read-only t))
1807 (delete-char -1)
1808 (insert ?\s))
1809 (or (string-equal tem bmrk)
1810 (member tem others)
1811 (setq others (cons tem others))))
1812 (setq others (nreverse others)
1813 tem (/ (1- (frame-height)) (1+ (length others))))
1814 (delete-other-windows)
1815 (bookmark-jump bmrk)
1816 (bury-buffer menu)
1817 (if others
1818 (while others
1819 (split-window nil tem)
1820 (other-window 1)
1821 (bookmark-jump (car others))
1822 (setq others (cdr others)))
1823 (other-window 1))))
1824
1825
1826 (defun bookmark-bmenu-any-marks ()
1827 "Return non-nil if any bookmarks are marked in the marks column."
1828 (save-excursion
1829 (goto-char (point-min))
1830 (bookmark-bmenu-ensure-position)
1831 (catch 'found-mark
1832 (while (not (eobp))
1833 (beginning-of-line)
1834 (if (looking-at "^\\S-")
1835 (throw 'found-mark t)
1836 (forward-line 1)))
1837 nil)))
1838
1839
1840 (defun bookmark-bmenu-save (parg)
1841 "Save the current list into a bookmark file.
1842 With a prefix arg, prompts for a file to save them in."
1843 (interactive "P")
1844 (save-excursion
1845 (save-window-excursion
1846 (bookmark-save parg)
1847 (set-buffer-modified-p nil))))
1848
1849
1850 (defun bookmark-bmenu-load ()
1851 "Load the bookmark file and rebuild the bookmark menu-buffer."
1852 (interactive)
1853 (bookmark-bmenu-ensure-position)
1854 (save-excursion
1855 (save-window-excursion
1856 ;; This will call `bookmark-bmenu-list'
1857 (call-interactively 'bookmark-load))))
1858
1859
1860 (defun bookmark-bmenu-1-window ()
1861 "Select this line's bookmark, alone, in full frame."
1862 (interactive)
1863 (bookmark-jump (bookmark-bmenu-bookmark))
1864 (bury-buffer (other-buffer))
1865 (delete-other-windows))
1866
1867
1868 (defun bookmark-bmenu-2-window ()
1869 "Select this line's bookmark, with previous buffer in second window."
1870 (interactive)
1871 (let ((bmrk (bookmark-bmenu-bookmark))
1872 (menu (current-buffer))
1873 (pop-up-windows t))
1874 (delete-other-windows)
1875 (switch-to-buffer (other-buffer) nil t)
1876 (bookmark--jump-via bmrk 'pop-to-buffer)
1877 (bury-buffer menu)))
1878
1879
1880 (defun bookmark-bmenu-this-window ()
1881 "Select this line's bookmark in this window."
1882 (interactive)
1883 (bookmark-jump (bookmark-bmenu-bookmark)))
1884
1885
1886 (defun bookmark-bmenu-other-window ()
1887 "Select this line's bookmark in other window, leaving bookmark menu visible."
1888 (interactive)
1889 (let ((bookmark (bookmark-bmenu-bookmark)))
1890 (bookmark--jump-via bookmark 'switch-to-buffer-other-window)))
1891
1892
1893 (defun bookmark-bmenu-switch-other-window ()
1894 "Make the other window select this line's bookmark.
1895 The current window remains selected."
1896 (interactive)
1897 (let ((bookmark (bookmark-bmenu-bookmark))
1898 (fun (lambda (b) (display-buffer b t))))
1899 (bookmark--jump-via bookmark fun)))
1900
1901 (defun bookmark-bmenu-other-window-with-mouse (event)
1902 "Select bookmark at the mouse pointer in other window, leaving bookmark menu visible."
1903 (interactive "e")
1904 (with-current-buffer (window-buffer (posn-window (event-end event)))
1905 (save-excursion
1906 (goto-char (posn-point (event-end event)))
1907 (bookmark-bmenu-other-window))))
1908
1909
1910 (defun bookmark-bmenu-show-annotation ()
1911 "Show the annotation for the current bookmark in another window."
1912 (interactive)
1913 (let ((bookmark (bookmark-bmenu-bookmark)))
1914 (bookmark-show-annotation bookmark)))
1915
1916
1917 (defun bookmark-bmenu-show-all-annotations ()
1918 "Show the annotation for all bookmarks in another window."
1919 (interactive)
1920 (bookmark-show-all-annotations))
1921
1922
1923 (defun bookmark-bmenu-edit-annotation ()
1924 "Edit the annotation for the current bookmark in another window."
1925 (interactive)
1926 (let ((bookmark (bookmark-bmenu-bookmark)))
1927 (bookmark-edit-annotation bookmark)))
1928
1929
1930 (defun bookmark-bmenu-unmark (&optional backup)
1931 "Cancel all requested operations on bookmark on this line and move down.
1932 Optional BACKUP means move up."
1933 (interactive "P")
1934 (beginning-of-line)
1935 (bookmark-bmenu-ensure-position)
1936 (with-buffer-modified-unmodified
1937 (let ((inhibit-read-only t))
1938 (delete-char 1)
1939 ;; any flags to reset according to circumstances? How about a
1940 ;; flag indicating whether this bookmark is being visited?
1941 ;; well, we don't have this now, so maybe later.
1942 (insert " "))
1943 (forward-line (if backup -1 1))
1944 (bookmark-bmenu-ensure-position)))
1945
1946
1947 (defun bookmark-bmenu-backup-unmark ()
1948 "Move up and cancel all requested operations on bookmark on line above."
1949 (interactive)
1950 (forward-line -1)
1951 (bookmark-bmenu-ensure-position)
1952 (bookmark-bmenu-unmark)
1953 (forward-line -1)
1954 (bookmark-bmenu-ensure-position))
1955
1956
1957 (defun bookmark-bmenu-delete ()
1958 "Mark bookmark on this line to be deleted.
1959 To carry out the deletions that you've marked, use \\<bookmark-bmenu-mode-map>\\[bookmark-bmenu-execute-deletions]."
1960 (interactive)
1961 (beginning-of-line)
1962 (bookmark-bmenu-ensure-position)
1963 (with-buffer-modified-unmodified
1964 (let ((inhibit-read-only t))
1965 (delete-char 1)
1966 (insert ?D)
1967 (forward-line 1)
1968 (bookmark-bmenu-ensure-position))))
1969
1970
1971 (defun bookmark-bmenu-delete-backwards ()
1972 "Mark bookmark on this line to be deleted, then move up one line.
1973 To carry out the deletions that you've marked, use \\<bookmark-bmenu-mode-map>\\[bookmark-bmenu-execute-deletions]."
1974 (interactive)
1975 (bookmark-bmenu-delete)
1976 (forward-line -2)
1977 (bookmark-bmenu-ensure-position)
1978 (forward-line 1)
1979 (bookmark-bmenu-ensure-position))
1980
1981
1982 (defun bookmark-bmenu-execute-deletions ()
1983 "Delete bookmarks flagged `D'."
1984 (interactive)
1985 (message "Deleting bookmarks...")
1986 (let ((o-point (point))
1987 (o-str (save-excursion
1988 (beginning-of-line)
1989 (unless (looking-at "^D")
1990 (buffer-substring
1991 (point)
1992 (progn (end-of-line) (point))))))
1993 (o-col (current-column)))
1994 (goto-char (point-min))
1995 (unless bookmark-bmenu-use-header-line
1996 (forward-line 1))
1997 (while (re-search-forward "^D" (point-max) t)
1998 (bookmark-delete (bookmark-bmenu-bookmark) t)) ; pass BATCH arg
1999 (bookmark-bmenu-list)
2000 (if o-str
2001 (progn
2002 (goto-char (point-min))
2003 (search-forward o-str)
2004 (beginning-of-line)
2005 (forward-char o-col))
2006 (goto-char o-point))
2007 (beginning-of-line)
2008 (message "Deleting bookmarks...done")
2009 ))
2010
2011
2012 (defun bookmark-bmenu-rename ()
2013 "Rename bookmark on current line. Prompts for a new name."
2014 (interactive)
2015 (let ((bmrk (bookmark-bmenu-bookmark))
2016 (thispoint (point)))
2017 (bookmark-rename bmrk)
2018 (goto-char thispoint)))
2019
2020
2021 (defun bookmark-bmenu-locate ()
2022 "Display location of this bookmark. Displays in the minibuffer."
2023 (interactive)
2024 (let ((bmrk (bookmark-bmenu-bookmark)))
2025 (message "%s" (bookmark-location bmrk))))
2026
2027 (defun bookmark-bmenu-relocate ()
2028 "Change the file path of the bookmark on the current line,
2029 prompting with completion for the new path."
2030 (interactive)
2031 (let ((bmrk (bookmark-bmenu-bookmark))
2032 (thispoint (point)))
2033 (bookmark-relocate bmrk)
2034 (goto-char thispoint)))
2035
2036 ;;; Bookmark-bmenu search
2037
2038 (defun bookmark-bmenu-filter-alist-by-regexp (regexp)
2039 "Filter `bookmark-alist' with bookmarks matching REGEXP and rebuild list."
2040 (let ((bookmark-alist
2041 (cl-loop for i in bookmark-alist
2042 when (string-match regexp (car i)) collect i into new
2043 finally return new)))
2044 (bookmark-bmenu-list)))
2045
2046
2047 ;;;###autoload
2048 (defun bookmark-bmenu-search ()
2049 "Incremental search of bookmarks, hiding the non-matches as we go."
2050 (interactive)
2051 (let ((bmk (bookmark-bmenu-bookmark))
2052 (timer nil))
2053 (unwind-protect
2054 (minibuffer-with-setup-hook
2055 (lambda ()
2056 (setq timer (run-with-idle-timer
2057 bookmark-search-delay 'repeat
2058 #'(lambda (buf)
2059 (with-current-buffer buf
2060 (bookmark-bmenu-filter-alist-by-regexp
2061 (minibuffer-contents))))
2062 (current-buffer))))
2063 (read-string "Pattern: ")
2064 (when timer (cancel-timer timer) (setq timer nil)))
2065 (when timer ;; Signalled an error or a `quit'.
2066 (cancel-timer timer)
2067 (bookmark-bmenu-list)
2068 (bookmark-bmenu-goto-bookmark bmk)))))
2069
2070 (defun bookmark-bmenu-goto-bookmark (name)
2071 "Move point to bookmark with name NAME."
2072 (goto-char (point-min))
2073 (while (not (equal name (bookmark-bmenu-bookmark)))
2074 (forward-line 1))
2075 (forward-line 0))
2076
2077
2078 \f
2079 ;;; Menu bar stuff. Prefix is "bookmark-menu".
2080
2081 (defun bookmark-menu-popup-paned-menu (event name entries)
2082 "Pop up multi-paned menu at EVENT, return string chosen from ENTRIES.
2083 That is, ENTRIES is a list of strings which appear as the choices
2084 in the menu.
2085 The number of panes depends on the number of entries.
2086 The visible entries are truncated to `bookmark-menu-length', but the
2087 strings returned are not."
2088 (let ((f-height (/ (frame-height) 2))
2089 (pane-list nil)
2090 (iter 0))
2091 (while entries
2092 (let (lst
2093 (count 0))
2094 (while (and (< count f-height) entries)
2095 (let ((str (car entries)))
2096 (push (cons
2097 (if (> (length str) bookmark-menu-length)
2098 (substring str 0 bookmark-menu-length)
2099 str)
2100 str)
2101 lst)
2102 (setq entries (cdr entries))
2103 (setq count (1+ count))))
2104 (setq iter (1+ iter))
2105 (push (cons
2106 (format "-*- %s (%d) -*-" name iter)
2107 (nreverse lst))
2108 pane-list)))
2109
2110 ;; Popup the menu and return the string.
2111 (x-popup-menu event (cons (concat "-*- " name " -*-")
2112 (nreverse pane-list)))))
2113
2114
2115 ;; Thanks to Roland McGrath for fixing menubar.el so that the
2116 ;; following works, and for explaining what to do to make it work.
2117
2118 ;; We MUST autoload EACH form used to set up this variable's value, so
2119 ;; that the whole job is done in loaddefs.el.
2120
2121 ;; Emacs menubar stuff.
2122
2123 ;;;###autoload
2124 (defvar menu-bar-bookmark-map
2125 (let ((map (make-sparse-keymap "Bookmark functions")))
2126 (bindings--define-key map [load]
2127 '(menu-item "Load a Bookmark File..." bookmark-load
2128 :help "Load bookmarks from a bookmark file)"))
2129 (bindings--define-key map [write]
2130 '(menu-item "Save Bookmarks As..." bookmark-write
2131 :help "Write bookmarks to a file (reading the file name with the minibuffer)"))
2132 (bindings--define-key map [save]
2133 '(menu-item "Save Bookmarks" bookmark-save
2134 :help "Save currently defined bookmarks"))
2135 (bindings--define-key map [edit]
2136 '(menu-item "Edit Bookmark List" bookmark-bmenu-list
2137 :help "Display a list of existing bookmarks"))
2138 (bindings--define-key map [delete]
2139 '(menu-item "Delete Bookmark..." bookmark-delete
2140 :help "Delete a bookmark from the bookmark list"))
2141 (bindings--define-key map [rename]
2142 '(menu-item "Rename Bookmark..." bookmark-rename
2143 :help "Change the name of a bookmark"))
2144 (bindings--define-key map [locate]
2145 '(menu-item "Insert Location..." bookmark-locate
2146 :help "Insert the name of the file associated with a bookmark"))
2147 (bindings--define-key map [insert]
2148 '(menu-item "Insert Contents..." bookmark-insert
2149 :help "Insert the text of the file pointed to by a bookmark"))
2150 (bindings--define-key map [set]
2151 '(menu-item "Set Bookmark..." bookmark-set
2152 :help "Set a bookmark named inside a file."))
2153 (bindings--define-key map [jump]
2154 '(menu-item "Jump to Bookmark..." bookmark-jump
2155 :help "Jump to a bookmark (a point in some file)"))
2156 map))
2157
2158 ;;;###autoload
2159 (defalias 'menu-bar-bookmark-map menu-bar-bookmark-map)
2160
2161 ;; make bookmarks appear toward the right side of the menu.
2162 (if (boundp 'menu-bar-final-items)
2163 (if menu-bar-final-items
2164 (push 'bookmark menu-bar-final-items))
2165 (setq menu-bar-final-items '(bookmark)))
2166
2167 ;;;; end bookmark menu stuff ;;;;
2168
2169 \f
2170 ;; Load Hook
2171 (defvar bookmark-load-hook nil
2172 "Hook run at the end of loading library `bookmark.el'.")
2173
2174 ;; Exit Hook, called from kill-emacs-hook
2175 (define-obsolete-variable-alias 'bookmark-exit-hooks
2176 'bookmark-exit-hook "22.1")
2177 (defvar bookmark-exit-hook nil
2178 "Hook run when Emacs exits.")
2179
2180 (defun bookmark-exit-hook-internal ()
2181 "Save bookmark state, if necessary, at Emacs exit time.
2182 This also runs `bookmark-exit-hook'."
2183 (run-hooks 'bookmark-exit-hook)
2184 (and (bookmark-time-to-save-p t)
2185 (bookmark-save)))
2186
2187 (unless noninteractive
2188 (add-hook 'kill-emacs-hook 'bookmark-exit-hook-internal))
2189
2190 (defun bookmark-unload-function ()
2191 "Unload the Bookmark library."
2192 (when bookmark-save-flag (bookmark-save))
2193 ;; continue standard unloading
2194 nil)
2195
2196
2197 (run-hooks 'bookmark-load-hook)
2198
2199 (provide 'bookmark)
2200
2201 ;;; bookmark.el ends here