Commit | Line | Data |
---|---|---|
5246db4e | 1 | ;;; uniquify.el --- unique buffer names dependent on file name |
4c61f92c | 2 | |
bc2e0aae | 3 | ;; Copyright (c) 1989, 1995, 1996, 1997 Free Software Foundation, Inc. |
4c61f92c KH |
4 | |
5 | ;; Author: Dick King <king@reasoning.com> | |
2ad02767 | 6 | ;; Maintainer: FSF |
4c61f92c KH |
7 | ;; Created: 15 May 86 |
8 | ||
9 | ;; This file is part of GNU Emacs. | |
10 | ||
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 2, or (at your option) | |
14 | ;; any later version. | |
15 | ||
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. | |
20 | ||
21 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
23 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
24 | ;; Boston, MA 02111-1307, USA. | |
4c61f92c KH |
25 | |
26 | ;;; Commentary: | |
27 | ||
28 | ;; Emacs's standard method for making buffer names unique adds <2>, <3>, | |
29 | ;; etc. to the end of (all but one of) the buffers. This file replaces | |
30 | ;; that behavior, for buffers visiting files and dired buffers, with a | |
5246db4e | 31 | ;; uniquification that adds parts of the file name until the buffer names |
4c61f92c KH |
32 | ;; are unique. For instance, buffers visiting /u/mernst/tmp/Makefile and |
33 | ;; /usr/projects/zaphod/Makefile would be named Makefile|tmp and | |
34 | ;; Makefile|zaphod, respectively (instead of Makefile and Makefile<2>). | |
35 | ;; Other buffer name styles are also available. | |
36 | ||
4219b27b RS |
37 | ;; To use this file, do (require 'uniquify) |
38 | ;; and set uniquify-buffer-name-style to one of its non-nil alternative values. | |
39 | ||
4c61f92c KH |
40 | ;; For other options, see "User-visible variables", below. |
41 | ||
d7993a1c RS |
42 | ;; A version of uniquify.el that works under Emacs 18, Emacs 19, XEmacs, |
43 | ;; and InfoDock is available from the maintainer. | |
4c61f92c | 44 | |
bc2e0aae KH |
45 | ;; Doesn't work under NT when backslash is used as a path separator (forward |
46 | ;; slash path separator works fine). To fix, check system-type against | |
47 | ;; 'windows-nt, write a routine that breaks paths down into components. | |
48 | ;; (Surprisingly, there isn't one built in.) | |
49 | ||
4c61f92c KH |
50 | ;;; Change Log: |
51 | ||
52 | ;; Originally by Dick King <king@reasoning.com> 15 May 86 | |
53 | ;; Converted for Emacs 18 by Stephen Gildea <gildea@lcs.mit.edu> | |
54 | ;; Make uniquify-min-dir-content 0 truly non-invasive. gildea 23 May 89 | |
55 | ;; Some cleanup. uniquify-min-dir-content default 0. gildea 01 Jun 89 | |
56 | ;; Don't rename to "". Michael Ernst <mernst@theory.lcs.mit.edu> 15 Jun 94 | |
57 | ;; Add kill-buffer-hook. Kenneth Manheimer <ken.manheimer@nist.gov> 09 May 95 | |
58 | ;; Add advice for rename-buffer and create-file-buffer, handle dired buffers, | |
59 | ;; kill-buffer-rationalize-buffer-names-p, documentation. mernst 24 May 95 | |
60 | ;; Remove free variables, fix typos. mernst 5 Jun 95 | |
61 | ;; Efficiently support Emacs 19.27 & earlier. ken.manheimer, mernst 10 Jun 95 | |
62 | ;; Rename user options to "uniquify-...", add uniquify-reverse-dir-content-p, | |
63 | ;; add uniquify-ask-about-buffer-names-p. king, mernst 13 Jun 95 | |
64 | ;; Prefix functions by "uniquify-..."; rename mnemonic-buffer-names to | |
65 | ;; uniquify-buffer-name-style; add 'forward and 'post-forward-angle-brackets | |
66 | ;; styles; remove uniquify-reverse-dir-content-p; add | |
67 | ;; uniquify-trailing-separator-p. mernst 4 Aug 95 | |
bc2e0aae KH |
68 | ;; Don't call expand-file-name on nil. mernst 7 Jan 96 |
69 | ;; Check whether list-buffers-directory is bound. mernst 11 Oct 96 | |
70 | ;; Ignore non-file non-dired buffers. Colin Rafferty <craffert@ml.com> 3 Mar 97 | |
4ddd2beb RS |
71 | ;; Use last component, not "", for file name of directories. mernst 27 Jun 97 |
72 | ;; Use directory-file-name; code cleanup. mernst 6 Sep 97 | |
9a9c6f9f RS |
73 | ;; Add uniquify-ignore-buffers-re. |
74 | ;; Andre Srinivasan <andre@visigenic.com> 9 Sep 97 | |
f4eda05f SM |
75 | ;; Add uniquify-list-buffers-directory-modes |
76 | ;; Stefan Monnier <monnier@cs.yale.edu> 17 Nov 2000 | |
4c61f92c KH |
77 | |
78 | ;; Valuable feedback was provided by | |
79 | ;; Paul Smith <psmith@baynetworks.com>, | |
80 | ;; Alastair Burt <burt@dfki.uni-kl.de>, | |
81 | ;; Bob Weiner <weiner@footloose.sps.mot.com>, | |
82 | ;; Albert L. Ting <alt@vlibs.com>, | |
bc2e0aae KH |
83 | ;; gyro@reasoning.com, |
84 | ;; Bryan O'Sullivan <bos@eng.sun.com>. | |
4c61f92c KH |
85 | |
86 | ||
87 | ;;; Code: | |
88 | ||
89 | (provide 'uniquify) | |
b878827d | 90 | (eval-when-compile (require 'cl)) |
4c61f92c KH |
91 | |
92 | ;;; User-visible variables | |
93 | ||
c5292bc8 RS |
94 | (defgroup uniquify nil |
95 | "Unique buffer names dependent on file name" | |
96 | :group 'applications) | |
97 | ||
98 | ||
4219b27b | 99 | (defcustom uniquify-buffer-name-style nil |
4c61f92c | 100 | "*If non-nil, buffer names are uniquified with parts of directory name. |
5246db4e | 101 | The value determines the buffer name style and is one of `forward', |
595ded73 | 102 | `reverse', `post-forward', or `post-forward-angle-brackets'. |
5246db4e KH |
103 | For example, files `/foo/bar/mumble/name' and `/baz/quux/mumble/name' |
104 | would have the following buffer names in the various styles: | |
4c61f92c KH |
105 | forward bar/mumble/name quux/mumble/name |
106 | reverse name\\mumble\\bar name\\mumble\\quux | |
107 | post-forward name|bar/mumble name|quux/mumble | |
108 | post-forward-angle-brackets name<bar/mumble> name<quux/mumble> | |
c5292bc8 RS |
109 | nil name name<2>" |
110 | :type '(radio (const forward) | |
111 | (const reverse) | |
112 | (const post-forward) | |
4f5074c1 | 113 | (const post-forward-angle-brackets) |
4219b27b | 114 | (const :tag "standard Emacs behavior (nil)" nil)) |
a5bec26c | 115 | :require 'uniquify |
c5292bc8 RS |
116 | :group 'uniquify) |
117 | ||
118 | (defcustom uniquify-after-kill-buffer-p nil | |
4c61f92c KH |
119 | "*If non-nil, rerationalize buffer names after a buffer has been killed. |
120 | This can be dangerous if Emacs Lisp code is keeping track of buffers by their | |
c5292bc8 RS |
121 | names (rather than keeping pointers to the buffers themselves)." |
122 | :type 'boolean | |
123 | :group 'uniquify) | |
4c61f92c | 124 | |
c5292bc8 | 125 | (defcustom uniquify-ask-about-buffer-names-p nil |
4c61f92c KH |
126 | "*If non-nil, permit user to choose names for buffers with same base file. |
127 | If the user chooses to name a buffer, uniquification is preempted and no | |
c5292bc8 RS |
128 | other buffer names are changed." |
129 | :type 'boolean | |
130 | :group 'uniquify) | |
4c61f92c | 131 | |
9a9c6f9f | 132 | (defcustom uniquify-ignore-buffers-re nil |
3c7c4868 | 133 | "*Regular expression matching buffer names that should not be uniquified. |
9a9c6f9f RS |
134 | For instance, set this to \"^draft-[0-9]+$\" to avoid having uniquify rename |
135 | draft buffers even if `uniquify-after-kill-buffer-p' is non-nil and the | |
136 | visited file name isn't the same as that of the buffer." | |
3c7c4868 | 137 | :type '(choice (const :tag "Uniquify all buffers" nil) regexp) |
9a9c6f9f RS |
138 | :group 'uniquify) |
139 | ||
c5292bc8 | 140 | (defcustom uniquify-min-dir-content 0 |
18ed17e4 | 141 | "*Minimum number of directory name components included in buffer name." |
c5292bc8 RS |
142 | :type 'integer |
143 | :group 'uniquify) | |
4c61f92c | 144 | |
c5292bc8 | 145 | (defcustom uniquify-separator nil |
4c61f92c | 146 | "*String separator for buffer name components. |
5246db4e | 147 | When `uniquify-buffer-name-style' is `post-forward', separates |
4c61f92c | 148 | base file name from directory part in buffer names (default \"|\"). |
5246db4e | 149 | When `uniquify-buffer-name-style' is `reverse', separates all |
c5292bc8 RS |
150 | file name components (default \"\\\")." |
151 | :type '(choice (const nil) string) | |
152 | :group 'uniquify) | |
4c61f92c | 153 | |
c5292bc8 | 154 | (defcustom uniquify-trailing-separator-p nil |
5246db4e KH |
155 | "*If non-nil, add a file name separator to dired buffer names. |
156 | If `uniquify-buffer-name-style' is `forward', add the separator at the end; | |
157 | if it is `reverse', add the separator at the beginning; otherwise, this | |
c5292bc8 RS |
158 | variable is ignored." |
159 | :type 'boolean | |
160 | :group 'uniquify) | |
4c61f92c | 161 | |
f4eda05f SM |
162 | (defvar uniquify-list-buffers-directory-modes '(dired-mode cvs-mode) |
163 | "List of modes for which uniquify should obey `list-buffers-directory'. | |
164 | That means that when `buffer-file-name' is set to nil, `list-buffers-directory' | |
165 | contains the name of the directory which the buffer is visiting.") | |
4c61f92c KH |
166 | |
167 | ;;; Utilities | |
168 | ||
4ddd2beb RS |
169 | ;; For directories, return the last component, not the empty string. |
170 | (defun uniquify-file-name-nondirectory (file-name) | |
171 | (file-name-nondirectory (directory-file-name file-name))) | |
4c61f92c | 172 | |
4ddd2beb RS |
173 | ;; uniquify-fix-list data structure |
174 | (defmacro uniquify-fix-item-base (a) | |
b8517c22 | 175 | `(car ,a)) |
4ddd2beb | 176 | (defmacro uniquify-fix-item-filename (a) |
b8517c22 | 177 | `(car (cdr ,a))) |
4ddd2beb | 178 | (defmacro uniquify-fix-item-buffer (a) |
b8517c22 | 179 | `(car (cdr (cdr ,a)))) |
4ddd2beb RS |
180 | ;; Not a macro: passed to mapcar. |
181 | (defun uniquify-fix-item-unrationalized-buffer (item) | |
182 | (or (car (cdr (cdr (cdr item)))) nil)) ;maybe better in the future | |
4c61f92c | 183 | |
4ddd2beb RS |
184 | (defun uniquify-fix-item-filename-lessp (fixlist1 fixlist2) |
185 | (uniquify-filename-lessp (uniquify-fix-item-filename fixlist1) | |
186 | (uniquify-fix-item-filename fixlist2))) | |
4c61f92c KH |
187 | |
188 | ;; Internal variables used free | |
189 | (defvar uniquify-non-file-buffer-names nil) | |
190 | (defvar uniquify-possibly-resolvable nil) | |
191 | ||
192 | ;;; Main entry point. | |
193 | ||
194 | (defun uniquify-rationalize-file-buffer-names (&optional newbuffile newbuf) | |
f4eda05f | 195 | "Make file buffer names unique by adding segments from file name. |
4c61f92c | 196 | If `uniquify-min-dir-content' > 0, always pulls that many |
5246db4e | 197 | file name elements. Arguments cause only a subset of buffers to be renamed." |
4c61f92c KH |
198 | (interactive) |
199 | (let (fix-list | |
4ddd2beb | 200 | uniquify-non-file-buffer-names) |
4c61f92c KH |
201 | (let ((buffers (buffer-list))) |
202 | (while buffers | |
203 | (let* ((buffer (car buffers)) | |
204 | (bfn (if (eq buffer newbuf) | |
4ddd2beb RS |
205 | (and newbuffile |
206 | (expand-file-name | |
207 | (if (file-directory-p newbuffile) | |
208 | (directory-file-name newbuffile) | |
209 | newbuffile))) | |
4c61f92c | 210 | (uniquify-buffer-file-name buffer))) |
18ed17e4 | 211 | (rawname (and bfn (uniquify-file-name-nondirectory bfn))) |
4c61f92c | 212 | (deserving (and rawname |
9a9c6f9f RS |
213 | (not (and uniquify-ignore-buffers-re |
214 | (string-match uniquify-ignore-buffers-re | |
215 | (buffer-name buffer)))) | |
4c61f92c KH |
216 | (or (not newbuffile) |
217 | (equal rawname | |
18ed17e4 | 218 | (uniquify-file-name-nondirectory newbuffile)))))) |
4c61f92c | 219 | (if deserving |
b878827d GM |
220 | (push (list rawname bfn buffer nil) fix-list) |
221 | (push (list (buffer-name buffer)) | |
222 | uniquify-non-file-buffer-names))) | |
4c61f92c KH |
223 | (setq buffers (cdr buffers)))) |
224 | ;; selects buffers whose names may need changing, and others that | |
225 | ;; may conflict. | |
def83929 FP |
226 | (setq fix-list |
227 | (sort fix-list 'uniquify-fix-item-filename-lessp)) | |
4c61f92c | 228 | ;; bringing conflicting names together |
4ddd2beb RS |
229 | (uniquify-rationalize-a-list fix-list uniquify-min-dir-content) |
230 | (mapcar 'uniquify-fix-item-unrationalized-buffer fix-list))) | |
4c61f92c | 231 | |
4ddd2beb | 232 | ;; uniquify's version of buffer-file-name; result never contains trailing slash |
4c61f92c KH |
233 | (defun uniquify-buffer-file-name (buffer) |
234 | "Return name of file BUFFER is visiting, or nil if none. | |
f4eda05f SM |
235 | Works on ordinary file-visiting buffers and buffers whose mode is mentioned |
236 | in `uniquify-list-buffers-directory-modes', otherwise returns nil." | |
4c61f92c | 237 | (or (buffer-file-name buffer) |
f4eda05f | 238 | (with-current-buffer buffer |
18ed17e4 | 239 | (and |
f4eda05f | 240 | (memq major-mode uniquify-list-buffers-directory-modes) |
18ed17e4 RS |
241 | (if (boundp 'list-buffers-directory) ; XEmacs mightn't define this |
242 | (and list-buffers-directory | |
243 | (directory-file-name list-buffers-directory)) | |
244 | ;; don't use default-directory if dired-directory is nil | |
245 | (and dired-directory | |
246 | (expand-file-name | |
247 | (directory-file-name | |
248 | (if (consp dired-directory) | |
249 | (car dired-directory) | |
f4eda05f | 250 | dired-directory))))))))) |
4c61f92c | 251 | |
d7993a1c | 252 | ;; This examines the filename components in reverse order. |
4c61f92c | 253 | (defun uniquify-filename-lessp (s1 s2) |
18ed17e4 RS |
254 | (let ((s1f (uniquify-file-name-nondirectory s1)) |
255 | (s2f (uniquify-file-name-nondirectory s2))) | |
4c61f92c KH |
256 | (and (not (equal s2f "")) |
257 | (or (string-lessp s1f s2f) | |
258 | (and (equal s1f s2f) | |
259 | (let ((s1d (file-name-directory s1)) | |
260 | (s2d (file-name-directory s2))) | |
261 | (and (not (<= (length s2d) 1)) | |
262 | (or (<= (length s1d) 1) | |
263 | (uniquify-filename-lessp | |
264 | (substring s1d 0 -1) | |
265 | (substring s2d 0 -1)))))))))) | |
266 | ||
4c61f92c | 267 | (defun uniquify-rationalize-a-list (fix-list depth) |
18ed17e4 | 268 | (let (conflicting-sublist ; all elements have the same proposed name |
4c61f92c KH |
269 | (old-name "") |
270 | proposed-name uniquify-possibly-resolvable) | |
271 | (while fix-list | |
272 | (let ((item (car fix-list))) | |
273 | (setq proposed-name (uniquify-get-proposed-name item depth)) | |
274 | (if (not (equal proposed-name old-name)) | |
275 | (progn | |
276 | (uniquify-rationalize-conflicting-sublist | |
277 | conflicting-sublist old-name depth) | |
278 | (setq conflicting-sublist nil))) | |
b878827d | 279 | (push item conflicting-sublist) |
4c61f92c KH |
280 | (setq old-name proposed-name)) |
281 | (setq fix-list (cdr fix-list))) | |
282 | (uniquify-rationalize-conflicting-sublist | |
283 | conflicting-sublist old-name depth))) | |
284 | ||
285 | (defun uniquify-get-proposed-name (item depth) | |
286 | (let (index | |
287 | (extra-string "") | |
288 | (n depth) | |
4ddd2beb RS |
289 | (base (uniquify-fix-item-base item)) |
290 | (fn (uniquify-fix-item-filename item))) | |
4c61f92c KH |
291 | (while (and (> n 0) |
292 | (setq index (string-match | |
293 | (concat "\\(^\\|/[^/]*\\)/" | |
294 | (regexp-quote extra-string) | |
295 | (regexp-quote base) | |
296 | "\\'") | |
297 | fn))) | |
298 | (setq extra-string (substring fn | |
299 | (if (zerop index) 0 (1+ index)) | |
300 | ;; (- (length base)) fails for base = "". | |
301 | ;; Equivalently, we could have used | |
302 | ;; (apply 'substring ... | |
303 | ;; (and (not (string= "" base)) | |
304 | ;; (list (- (length base))))) | |
305 | (- (length fn) (length base))) | |
306 | n (1- n))) | |
307 | (if (zerop n) (setq uniquify-possibly-resolvable t)) | |
308 | ||
309 | ||
310 | ;; Distinguish directories by adding extra separator. | |
311 | (if (and uniquify-trailing-separator-p | |
312 | (file-directory-p fn) | |
313 | (not (string-equal base ""))) | |
314 | (cond ((eq uniquify-buffer-name-style 'forward) | |
315 | (setq base (concat base "/"))) | |
316 | ((eq uniquify-buffer-name-style 'reverse) | |
317 | (setq base (concat (or uniquify-separator "\\") base))))) | |
318 | ||
319 | ;; Trim trailing separator on directory part | |
320 | (if (and (not (string-equal extra-string "")) | |
321 | (or (eq uniquify-buffer-name-style 'post-forward) | |
322 | (eq uniquify-buffer-name-style 'post-forward-angle-brackets))) | |
323 | (setq extra-string (substring extra-string 0 | |
324 | (- (length extra-string) 1)))) | |
325 | ||
326 | (cond ((string-equal extra-string "") | |
327 | base) | |
328 | ((string-equal base "") | |
329 | extra-string) | |
330 | ((eq uniquify-buffer-name-style 'forward) | |
331 | (concat extra-string base)) | |
332 | ((eq uniquify-buffer-name-style 'reverse) | |
333 | (concat base (uniquify-reverse-components extra-string))) | |
334 | ((eq uniquify-buffer-name-style 'post-forward) | |
335 | (concat base (or uniquify-separator "|") extra-string)) | |
336 | ((eq uniquify-buffer-name-style 'post-forward-angle-brackets) | |
337 | (concat base "<" extra-string ">")) | |
338 | (t (error "Bad value for uniquify-buffer-name-style: %s" | |
339 | uniquify-buffer-name-style))))) | |
340 | ||
341 | ||
4ddd2beb RS |
342 | ;; Deal with conflicting-sublist, all of whose elements have identical |
343 | ;; "base" components. | |
4c61f92c KH |
344 | (defun uniquify-rationalize-conflicting-sublist (conflicting-sublist old-name depth) |
345 | (or (null conflicting-sublist) | |
346 | (and (null (cdr conflicting-sublist)) | |
347 | (not (assoc old-name uniquify-non-file-buffer-names)) | |
348 | (or (and (not (string= old-name "")) | |
349 | (uniquify-rename-buffer (car conflicting-sublist) old-name)) | |
350 | t)) | |
351 | (if uniquify-possibly-resolvable | |
352 | (uniquify-rationalize-a-list conflicting-sublist (1+ depth))))) | |
353 | ||
354 | (defun uniquify-rename-buffer (item newname) | |
4ddd2beb | 355 | (let ((buffer (uniquify-fix-item-buffer item))) |
4c61f92c KH |
356 | (if (not (equal newname (buffer-name buffer))) |
357 | (let ((unset (current-buffer)) | |
358 | ;; avoid hooks on rename-buffer | |
359 | (uniquify-buffer-name-style nil)) | |
360 | (set-buffer buffer) | |
361 | (rename-buffer newname) | |
362 | (set-buffer unset)))) | |
363 | (rplaca (nthcdr 3 item) t)) | |
364 | ||
365 | (defun uniquify-reverse-components (instring) | |
366 | (let ((sofar '()) | |
367 | (cursor 0) | |
368 | (len (length instring)) | |
369 | (sep (or uniquify-separator "\\"))) | |
370 | (while (< cursor len) | |
371 | (if (= (aref instring cursor) ?/) | |
372 | (setq sofar (cons sep sofar) | |
373 | cursor (1+ cursor)) | |
374 | (let ((first-slash (or (string-match "/" instring cursor) len))) | |
375 | (setq sofar (cons (substring instring cursor first-slash) sofar) | |
376 | cursor first-slash)))) | |
377 | (apply (function concat) sofar))) | |
378 | ||
379 | ||
380 | ;;; Hooks from the rest of Emacs | |
381 | ||
4c61f92c KH |
382 | ;; The logical place to put all this code is in generate-new-buffer-name. |
383 | ;; It's written in C, so we would add a generate-new-buffer-name-function | |
384 | ;; which, if non-nil, would be called instead of the C. One problem with | |
385 | ;; that is that generate-new-buffer-name takes a potential buffer name as | |
386 | ;; its argument -- not other information, such as what file the buffer will | |
387 | ;; visit. | |
388 | ||
389 | ;; The below solution works because generate-new-buffer-name is called | |
390 | ;; only by rename-buffer (which, as of 19.29, is never called from C) and | |
391 | ;; generate-new-buffer, which is called only by Lisp functions | |
392 | ;; create-file-buffer and rename-uniquely. Rename-uniquely generally | |
393 | ;; isn't used for buffers visiting files, so it's sufficient to hook | |
394 | ;; rename-buffer and create-file-buffer. (Setting find-file-hooks isn't | |
395 | ;; sufficient.) | |
396 | ||
397 | (defadvice rename-buffer (after rename-buffer-uniquify activate) | |
398 | "Uniquify buffer names with parts of directory name." | |
399 | (if (and uniquify-buffer-name-style | |
400 | ;; UNIQUE argument | |
401 | (ad-get-arg 1)) | |
402 | (progn | |
403 | (if uniquify-after-kill-buffer-p | |
404 | ;; call with no argument; rationalize vs. old name as well as new | |
405 | (uniquify-rationalize-file-buffer-names) | |
406 | ;; call with argument: rationalize vs. new name only | |
407 | (uniquify-rationalize-file-buffer-names | |
408 | (uniquify-buffer-file-name (current-buffer)) (current-buffer))) | |
409 | (setq ad-return-value (buffer-name (current-buffer)))))) | |
410 | ||
411 | (defadvice create-file-buffer (after create-file-buffer-uniquify activate) | |
412 | "Uniquify buffer names with parts of directory name." | |
413 | (if uniquify-buffer-name-style | |
414 | (uniquify-rationalize-file-buffer-names (ad-get-arg 0) ad-return-value))) | |
415 | ||
416 | ;; Buffer deletion | |
417 | ;; Rerationalize after a buffer is killed, to reduce coinciding buffer names. | |
418 | ;; This mechanism uses `kill-buffer-hook', which runs *before* deletion. | |
419 | ;; That means that the kill-buffer-hook function cannot just delete the | |
420 | ;; buffer -- it has to set something to do the rationalization *later*. | |
421 | ;; It actually puts another function on `post-command-hook'. This other | |
422 | ;; function runs the rationalization and then removes itself from the hook. | |
423 | ;; Is there a better way to accomplish this? | |
424 | ;; (This ought to set some global variables so the work is done only for | |
425 | ;; buffers with names similar to the deleted buffer. -MDE) | |
426 | ||
427 | (defun delay-uniquify-rationalize-file-buffer-names () | |
428 | "Add `delayed-uniquify-rationalize-file-buffer-names' to `post-command-hook'. | |
429 | For use on, eg, `kill-buffer-hook', to rationalize *after* buffer deletion." | |
430 | (if (and uniquify-buffer-name-style | |
431 | uniquify-after-kill-buffer-p) | |
432 | (add-hook 'post-command-hook | |
cf66807e | 433 | 'delayed-uniquify-rationalize-file-buffer-names))) |
4c61f92c KH |
434 | |
435 | (defun delayed-uniquify-rationalize-file-buffer-names () | |
436 | "Rerationalize buffer names and remove self from `post-command-hook'. | |
437 | See also `delay-rationalize-file-buffer-names' for hook setter." | |
438 | (uniquify-rationalize-file-buffer-names) | |
439 | (remove-hook 'post-command-hook | |
440 | 'delayed-uniquify-rationalize-file-buffer-names)) | |
441 | ||
442 | (add-hook 'kill-buffer-hook 'delay-uniquify-rationalize-file-buffer-names) | |
443 | ||
444 | ;;; uniquify.el ends here |