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6b279740 RS |
1 | ;;; filecache.el --- Find files using a pre-loaded cache |
2 | ;; | |
b662c4bc | 3 | ;; Author: Peter Breton <pbreton@cs.umb.edu> |
6b279740 | 4 | ;; Created: Sun Nov 10 1996 |
f5f727f8 | 5 | ;; Keywords: convenience |
b662c4bc | 6 | ;; Time-stamp: <1998-04-29 22:38:56 pbreton> |
6b279740 | 7 | ;; |
13161e8b RS |
8 | ;; Copyright (C) 1996 Free Software Foundation, Inc. |
9 | ||
10 | ;; This file is part of GNU Emacs. | |
11 | ||
12 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
6b279740 RS |
13 | ;; it under the terms of the GNU General Public License as published by |
14 | ;; the Free Software Foundation; either version 2, or (at your option) | |
15 | ;; any later version. | |
13161e8b RS |
16 | |
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
6b279740 | 18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
13161e8b RS |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
20 | ;; GNU General Public License for more details. | |
21 | ||
6b279740 | 22 | ;; You should have received a copy of the GNU General Public License |
13161e8b RS |
23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
24 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
25 | ;; Boston, MA 02111-1307, USA. | |
26 | ||
6b279740 RS |
27 | ;;; Commentary: |
28 | ;; | |
29 | ;; The file-cache package is an attempt to make it easy to locate files | |
30 | ;; by name, without having to remember exactly where they are located. | |
31 | ;; This is very handy when working with source trees. You can also add | |
32 | ;; frequently used files to the cache to create a hotlist effect. | |
33 | ;; The cache can be used with any interactive command which takes a | |
34 | ;; filename as an argument. | |
35 | ;; | |
36 | ;; It is worth noting that this package works best when most of the files | |
37 | ;; in the cache have unique names, or (if they have the same name) exist in | |
38 | ;; only a few directories. The worst case is many files all with | |
39 | ;; the same name and in different directories, for example a big source tree | |
40 | ;; with a Makefile in each directory. In such a case, you should probably | |
41 | ;; use an alternate strategy to find the files. | |
42 | ;; | |
43 | ;; ADDING FILES TO THE CACHE: | |
44 | ;; | |
45 | ;; Use the following functions to add items to the file cache: | |
46 | ;; | |
47 | ;; * `file-cache-add-file': Adds a single file to the cache | |
48 | ;; | |
49 | ;; * `file-cache-add-file-list': Adds a list of files to the cache | |
50 | ;; | |
51 | ;; The following functions use the regular expressions in | |
52 | ;; `file-cache-delete-regexps' to eliminate unwanted files: | |
53 | ;; | |
54 | ;; * `file-cache-add-directory': Adds the files in a directory to the | |
55 | ;; cache. You can also specify a regular expression to match the files | |
56 | ;; which should be added. | |
57 | ;; | |
58 | ;; * `file-cache-add-directory-list': Same as above, but acts on a list | |
59 | ;; of directories. You can use `load-path', `exec-path' and the like. | |
60 | ;; | |
61 | ;; * `file-cache-add-directory-using-find': Uses the `find' command to | |
62 | ;; add a directory tree to the cache. | |
63 | ;; | |
64 | ;; * `file-cache-add-directory-using-locate': Uses the `locate' command to | |
65 | ;; add files matching a pattern to the cache. | |
66 | ;; | |
67 | ;; Use the function `file-cache-clear-cache' to remove all items from the | |
68 | ;; cache. There are a number of `file-cache-delete' functions provided | |
69 | ;; as well, but in general it is probably better to not worry too much | |
70 | ;; about extra files in the cache. | |
71 | ;; | |
72 | ;; The most convenient way to initialize the cache is with an | |
b662c4bc RS |
73 | ;; `eval-after-load' function, as noted in the ADDING FILES |
74 | ;; AUTOMATICALLY section. | |
6b279740 RS |
75 | ;; |
76 | ;; FINDING FILES USING THE CACHE: | |
77 | ;; | |
78 | ;; You can use the file-cache with any function that expects a filename as | |
79 | ;; an argument. For example: | |
80 | ;; | |
81 | ;; 1) Invoke a function which expects a filename as an argument: | |
82 | ;; M-x find-file | |
83 | ;; | |
84 | ;; 2) Begin typing a file name. | |
85 | ;; | |
86 | ;; 3) Invoke `file-cache-minibuffer-complete' (bound by default to | |
87 | ;; C-TAB) to complete on the filename using the cache. | |
88 | ;; | |
89 | ;; 4) When you have found a unique completion, the minibuffer contents | |
90 | ;; will change to the full name of that file. | |
91 | ;; | |
92 | ;; If there are a number of directories which contain the completion, | |
93 | ;; invoking `file-cache-minibuffer-complete' repeatedly will cycle through | |
94 | ;; them. | |
95 | ;; | |
96 | ;; 5) You can then edit the minibuffer contents, or press RETURN. | |
97 | ;; | |
98 | ;; It is much easier to simply try it than trying to explain it :) | |
99 | ;; | |
b662c4bc | 100 | ;;; ADDING FILES AUTOMATICALLY |
6b279740 RS |
101 | ;; |
102 | ;; For maximum utility, you should probably define an `eval-after-load' | |
103 | ;; form which loads your favorite files: | |
104 | ;; | |
105 | ;; (eval-after-load | |
106 | ;; "filecache" | |
107 | ;; '(progn | |
108 | ;; (message "Loading file cache...") | |
109 | ;; (file-cache-add-directory-using-find "~/projects") | |
110 | ;; (file-cache-add-directory-list load-path) | |
111 | ;; (file-cache-add-directory "~/") | |
112 | ;; (file-cache-add-file-list (list "~/foo/bar" "~/baz/bar")) | |
113 | ;; )) | |
114 | ;; | |
115 | ;; If you clear and reload the cache frequently, it is probably easiest | |
116 | ;; to put your initializations in a function: | |
117 | ;; | |
118 | ;; (eval-after-load | |
119 | ;; "filecache" | |
120 | ;; '(my-file-cache-initialize)) | |
121 | ;; | |
122 | ;; (defun my-file-cache-initialize () | |
123 | ;; (interactive) | |
124 | ;; (message "Loading file cache...") | |
125 | ;; (file-cache-add-directory-using-find "~/projects") | |
126 | ;; (file-cache-add-directory-list load-path) | |
127 | ;; (file-cache-add-directory "~/") | |
128 | ;; (file-cache-add-file-list (list "~/foo/bar" "~/baz/bar")) | |
129 | ;; )) | |
130 | ;; | |
131 | ;; Of course, you can still add files to the cache afterwards, via | |
132 | ;; Lisp functions. | |
133 | ;; | |
134 | ;; RELATED WORK: | |
135 | ;; | |
136 | ;; This package is a distant relative of Noah Friedman's fff utilities. | |
137 | ;; Our goal is pretty similar, but the implementation strategies are | |
138 | ;; different. | |
13161e8b | 139 | |
6b279740 RS |
140 | ;;; Code: |
141 | ||
33933d45 AS |
142 | (defgroup file-cache nil |
143 | "Find files using a pre-loaded cache." | |
144 | :group 'files | |
f5f727f8 | 145 | :group 'convenience |
33933d45 AS |
146 | :prefix "file-cache-") |
147 | ||
6b279740 | 148 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
b662c4bc | 149 | ;; Customization Variables |
6b279740 RS |
150 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
151 | ||
152 | ;; User-modifiable variables | |
33933d45 | 153 | (defcustom file-cache-filter-regexps |
6b279740 RS |
154 | (list "~$" "\\.o$" "\\.exe$" "\\.a$" "\\.elc$" ",v$" "\\.output$" |
155 | "\\.$" "#$") | |
156 | "*List of regular expressions used as filters by the file cache. | |
157 | File names which match these expressions will not be added to the cache. | |
158 | Note that the functions `file-cache-add-file' and `file-cache-add-file-list' | |
33933d45 AS |
159 | do not use this variable." |
160 | :type '(repeat regexp) | |
161 | :group 'file-cache) | |
6b279740 | 162 | |
33933d45 AS |
163 | (defcustom file-cache-find-command "find" |
164 | "*External program used by `file-cache-add-directory-using-find'." | |
165 | :type 'string | |
166 | :group 'file-cache) | |
6b279740 | 167 | |
33933d45 AS |
168 | (defcustom file-cache-locate-command "locate" |
169 | "*External program used by `file-cache-add-directory-using-locate'." | |
170 | :type 'string | |
171 | :group 'file-cache) | |
6b279740 RS |
172 | |
173 | ;; Minibuffer messages | |
33933d45 AS |
174 | (defcustom file-cache-no-match-message " [File Cache: No match]" |
175 | "Message to display when there is no completion." | |
176 | :type 'string | |
177 | :group 'file-cache) | |
178 | ||
179 | (defcustom file-cache-sole-match-message " [File Cache: sole completion]" | |
180 | "Message to display when there is only one completion." | |
181 | :type 'string | |
182 | :group 'file-cache) | |
183 | ||
184 | (defcustom file-cache-non-unique-message | |
185 | " [File Cache: complete but not unique]" | |
186 | "Message to display when there is a non-unique completion." | |
187 | :type 'string | |
188 | :group 'file-cache) | |
6b279740 RS |
189 | |
190 | (defvar file-cache-multiple-directory-message nil) | |
191 | ||
192 | ;; Internal variables | |
193 | ;; This should be named *Completions* because that's what the function | |
194 | ;; switch-to-completions in simple.el expects | |
33933d45 AS |
195 | (defcustom file-cache-completions-buffer "*Completions*" |
196 | "Buffer to display completions when using the file cache." | |
197 | :type 'string | |
198 | :group 'file-cache) | |
199 | ||
200 | (defcustom file-cache-buffer "*File Cache*" | |
201 | "Buffer to hold the cache of file names." | |
202 | :type 'string | |
203 | :group 'file-cache) | |
204 | ||
205 | (defcustom file-cache-buffer-default-regexp "^.+$" | |
206 | "Regexp to match files in `file-cache-buffer'." | |
207 | :type 'regexp | |
208 | :group 'file-cache) | |
6b279740 RS |
209 | |
210 | (defvar file-cache-last-completion nil) | |
211 | ||
212 | (defvar file-cache-alist nil | |
213 | "Internal data structure to hold cache of file names.") | |
214 | ||
215 | (defvar file-cache-completions-keymap nil | |
216 | "Keymap for file cache completions buffer.") | |
217 | ||
218 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
219 | ;; Functions to add files to the cache | |
220 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
221 | ||
222 | (defun file-cache-add-directory (directory &optional regexp) | |
223 | "Add DIRECTORY to the file cache. | |
224 | If the optional REGEXP argument is non-nil, only files which match it will | |
225 | be added to the cache." | |
b662c4bc RS |
226 | (interactive "DAdd files from directory: ") |
227 | ;; Not an error, because otherwise we can't use load-paths that | |
228 | ;; contain non-existent directories. | |
229 | (if (not (file-accessible-directory-p directory)) | |
230 | (message "Directory %s does not exist" directory) | |
231 | (let* ((dir (expand-file-name directory)) | |
232 | (dir-files (directory-files dir t regexp)) | |
233 | ) | |
234 | ;; Filter out files we don't want to see | |
235 | (mapcar | |
236 | '(lambda (file) | |
6b279740 RS |
237 | (mapcar |
238 | '(lambda (regexp) | |
239 | (if (string-match regexp file) | |
240 | (setq dir-files (delq file dir-files)))) | |
241 | file-cache-filter-regexps)) | |
b662c4bc RS |
242 | dir-files) |
243 | (file-cache-add-file-list dir-files)))) | |
6b279740 RS |
244 | |
245 | (defun file-cache-add-directory-list (directory-list &optional regexp) | |
246 | "Add DIRECTORY-LIST (a list of directory names) to the file cache. | |
247 | If the optional REGEXP argument is non-nil, only files which match it | |
248 | will be added to the cache. Note that the REGEXP is applied to the files | |
249 | in each directory, not to the directory list itself." | |
250 | (interactive "XAdd files from directory list: ") | |
251 | (mapcar | |
252 | '(lambda (dir) (file-cache-add-directory dir regexp)) | |
253 | directory-list)) | |
254 | ||
255 | (defun file-cache-add-file-list (file-list) | |
256 | "Add FILE-LIST (a list of files names) to the file cache." | |
257 | (interactive "XFile List: ") | |
258 | (mapcar 'file-cache-add-file file-list)) | |
259 | ||
260 | ;; Workhorse function | |
261 | (defun file-cache-add-file (file) | |
262 | "Add FILE to the file cache." | |
263 | (interactive "fAdd File: ") | |
b662c4bc RS |
264 | (if (not (file-exists-p file)) |
265 | (message "File %s does not exist" file) | |
266 | (let* ((file-name (file-name-nondirectory file)) | |
267 | (dir-name (file-name-directory file)) | |
268 | (the-entry (assoc file-name file-cache-alist)) | |
269 | ) | |
270 | ;; Does the entry exist already? | |
271 | (if the-entry | |
272 | (if (or (and (stringp (cdr the-entry)) | |
273 | (string= dir-name (cdr the-entry))) | |
274 | (and (listp (cdr the-entry)) | |
275 | (member dir-name (cdr the-entry)))) | |
276 | nil | |
277 | (setcdr the-entry (append (list dir-name) (cdr the-entry))) | |
278 | ) | |
279 | ;; If not, add it to the cache | |
280 | (setq file-cache-alist | |
281 | (cons (cons file-name (list dir-name)) | |
282 | file-cache-alist))) | |
283 | ))) | |
284 | ||
6b279740 RS |
285 | (defun file-cache-add-directory-using-find (directory) |
286 | "Use the `find' command to add files to the file cache. | |
287 | Find is run in DIRECTORY." | |
288 | (interactive "DAdd files under directory: ") | |
289 | (let ((dir (expand-file-name directory))) | |
290 | (set-buffer (get-buffer-create file-cache-buffer)) | |
291 | (erase-buffer) | |
292 | (call-process file-cache-find-command nil | |
293 | (get-buffer file-cache-buffer) nil | |
294 | dir "-name" | |
295 | (if (memq system-type | |
296 | (list 'windows-nt 'ms-dos)) "'*'" "*") | |
297 | "-print") | |
298 | (file-cache-add-from-file-cache-buffer))) | |
299 | ||
300 | (defun file-cache-add-directory-using-locate (string) | |
301 | "Use the `locate' command to add files to the file cache. | |
302 | STRING is passed as an argument to the locate command." | |
303 | (interactive "sAdd files using locate string: ") | |
304 | (set-buffer (get-buffer-create file-cache-buffer)) | |
305 | (erase-buffer) | |
306 | (call-process file-cache-locate-command nil | |
307 | (get-buffer file-cache-buffer) nil | |
308 | string) | |
309 | (file-cache-add-from-file-cache-buffer)) | |
310 | ||
311 | (defun file-cache-add-from-file-cache-buffer (&optional regexp) | |
312 | "Add any entries found in the file cache buffer. | |
313 | Each entry matches the regular expression `file-cache-buffer-default-regexp' | |
314 | or the optional REGEXP argument." | |
315 | (set-buffer file-cache-buffer) | |
316 | (mapcar | |
317 | (function (lambda (elt) | |
318 | (goto-char (point-min)) | |
319 | (delete-matching-lines elt))) | |
320 | file-cache-filter-regexps) | |
321 | (goto-char (point-min)) | |
322 | (let ((full-filename)) | |
323 | (while (re-search-forward | |
324 | (or regexp file-cache-buffer-default-regexp) | |
325 | (point-max) t) | |
326 | (setq full-filename (buffer-substring-no-properties | |
327 | (match-beginning 0) (match-end 0))) | |
328 | (file-cache-add-file full-filename)))) | |
329 | ||
330 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
331 | ;; Functions to delete from the cache | |
332 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
333 | ||
334 | (defun file-cache-clear-cache () | |
335 | "Clear the file cache." | |
336 | (interactive) | |
337 | (setq file-cache-alist nil)) | |
338 | ||
339 | ;; This clears *all* files with the given name | |
340 | (defun file-cache-delete-file (file) | |
341 | "Delete FILE from the file cache." | |
342 | (interactive | |
343 | (list (completing-read "Delete file from cache: " file-cache-alist))) | |
344 | (setq file-cache-alist | |
345 | (delq (assoc file file-cache-alist) file-cache-alist))) | |
346 | ||
347 | (defun file-cache-delete-file-list (file-list) | |
348 | "Delete FILE-LIST (a list of files) from the file cache." | |
349 | (interactive "XFile List: ") | |
350 | (mapcar 'file-cache-delete-file file-list)) | |
351 | ||
352 | (defun file-cache-delete-file-regexp (regexp) | |
353 | "Delete files matching REGEXP from the file cache." | |
354 | (interactive "sRegexp: ") | |
355 | (let ((delete-list)) | |
356 | (mapcar '(lambda (elt) | |
357 | (and (string-match regexp (car elt)) | |
358 | (setq delete-list (cons (car elt) delete-list)))) | |
359 | file-cache-alist) | |
360 | (file-cache-delete-file-list delete-list) | |
361 | (message "Deleted %d files from file cache" (length delete-list)))) | |
362 | ||
363 | (defun file-cache-delete-directory (directory) | |
364 | "Delete DIRECTORY from the file cache." | |
365 | (interactive "DDelete directory from file cache: ") | |
366 | (let ((dir (expand-file-name directory)) | |
367 | (result 0)) | |
368 | (mapcar | |
369 | '(lambda (entry) | |
370 | (if (file-cache-do-delete-directory dir entry) | |
371 | (setq result (1+ result)))) | |
372 | file-cache-alist) | |
373 | (if (zerop result) | |
374 | (error "No entries containing %s found in cache" directory) | |
375 | (message "Deleted %d entries" result)))) | |
376 | ||
377 | (defun file-cache-do-delete-directory (dir entry) | |
378 | (let ((directory-list (cdr entry)) | |
379 | (directory (file-cache-canonical-directory dir)) | |
380 | ) | |
381 | (and (member directory directory-list) | |
382 | (if (equal 1 (length directory-list)) | |
383 | (setq file-cache-alist | |
384 | (delq entry file-cache-alist)) | |
385 | (setcdr entry (delete directory directory-list))) | |
386 | ) | |
387 | )) | |
388 | ||
389 | (defun file-cache-delete-directory-list (directory-list) | |
390 | "Delete DIRECTORY-LIST (a list of directories) from the file cache." | |
391 | (interactive "XDirectory List: ") | |
392 | (mapcar 'file-cache-delete-directory directory-list)) | |
393 | ||
394 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
395 | ;; Utility functions | |
396 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
397 | ||
398 | ;; Returns the name of a directory for a file in the cache | |
399 | (defun file-cache-directory-name (file) | |
400 | (let* ((directory-list (cdr (assoc file file-cache-alist))) | |
401 | (len (length directory-list)) | |
402 | (directory) | |
403 | (num) | |
404 | ) | |
405 | (if (not (listp directory-list)) | |
406 | (error "Unknown type in file-cache-alist for key %s" file)) | |
407 | (cond | |
408 | ;; Single element | |
409 | ((eq 1 len) | |
410 | (setq directory (elt directory-list 0))) | |
411 | ;; No elements | |
412 | ((eq 0 len) | |
413 | (error "No directory found for key %s" file)) | |
414 | ;; Multiple elements | |
415 | (t | |
416 | (let* ((minibuffer-dir (file-name-directory (buffer-string))) | |
417 | (dir-list (member minibuffer-dir directory-list)) | |
418 | ) | |
419 | (setq directory | |
420 | ;; If the directory is in the list, return the next element | |
421 | ;; Otherwise, return the first element | |
422 | (if dir-list | |
423 | (or (elt directory-list | |
424 | (setq num (1+ (- len (length dir-list))))) | |
425 | (elt directory-list (setq num 0))) | |
426 | (elt directory-list (setq num 0)))) | |
427 | ) | |
428 | ) | |
429 | ) | |
430 | ;; If there were multiple directories, set up a minibuffer message | |
431 | (setq file-cache-multiple-directory-message | |
432 | (and num (format " [%d of %d]" (1+ num) len))) | |
433 | directory)) | |
434 | ||
435 | ;; Returns the name of a file in the cache | |
436 | (defun file-cache-file-name (file) | |
437 | (let ((directory (file-cache-directory-name file))) | |
438 | (concat directory file))) | |
439 | ||
440 | ;; Return a canonical directory for comparison purposes. | |
441 | ;; Such a directory ends with a forward slash. | |
442 | (defun file-cache-canonical-directory (dir) | |
443 | (let ((directory dir)) | |
444 | (if (not (char-equal ?/ (string-to-char (substring directory -1)))) | |
445 | (concat directory "/") | |
446 | directory))) | |
447 | ||
448 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
449 | ;; Minibuffer functions | |
450 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
451 | ||
13161e8b RS |
452 | ;; The prefix argument works around a bug in the minibuffer completion. |
453 | ;; The completion function doesn't distinguish between the states: | |
454 | ;; | |
455 | ;; "Multiple completions of name" (eg, Makefile, Makefile.in) | |
456 | ;; "Name available in multiple directories" (/tmp/Makefile, ~me/Makefile) | |
457 | ;; | |
458 | ;; The default is to do the former; a prefix arg forces the latter. | |
459 | ||
6b279740 | 460 | ;;;###autoload |
13161e8b RS |
461 | (defun file-cache-minibuffer-complete (arg) |
462 | "Complete a filename in the minibuffer using a preloaded cache. | |
463 | Filecache does two kinds of substitution: it completes on names in | |
464 | the cache, and, once it has found a unique name, it cycles through | |
465 | the directories that the name is available in. With a prefix argument, | |
466 | the name is considered already unique; only the second substitution | |
467 | \(directories) is done." | |
468 | (interactive "P") | |
6b279740 RS |
469 | (let* |
470 | ( | |
471 | (completion-ignore-case nil) | |
472 | (case-fold-search nil) | |
13161e8b RS |
473 | (string (file-name-nondirectory (buffer-string))) |
474 | (completion-string (try-completion string file-cache-alist)) | |
6b279740 RS |
475 | (completion-list) |
476 | (len) | |
477 | (file-cache-string) | |
478 | ) | |
479 | (cond | |
13161e8b RS |
480 | ;; If it's the only match, replace the original contents |
481 | ((or arg (eq completion-string t)) | |
482 | (setq file-cache-string (file-cache-file-name string)) | |
483 | (if (string= file-cache-string (buffer-string)) | |
484 | (file-cache-temp-minibuffer-message file-cache-sole-match-message) | |
485 | (erase-buffer) | |
486 | (insert-string file-cache-string) | |
487 | (if file-cache-multiple-directory-message | |
488 | (file-cache-temp-minibuffer-message | |
489 | file-cache-multiple-directory-message)) | |
490 | )) | |
491 | ||
6b279740 RS |
492 | ;; If it's the longest match, insert it |
493 | ((stringp completion-string) | |
494 | ;; If we've already inserted a unique string, see if the user | |
495 | ;; wants to use that one | |
496 | (if (and (string= string completion-string) | |
497 | (assoc string file-cache-alist)) | |
498 | (if (and (eq last-command this-command) | |
499 | (string= file-cache-last-completion completion-string)) | |
500 | (progn | |
501 | (erase-buffer) | |
502 | (insert-string (file-cache-file-name completion-string)) | |
503 | (setq file-cache-last-completion nil) | |
504 | ) | |
505 | (file-cache-temp-minibuffer-message file-cache-non-unique-message) | |
506 | (setq file-cache-last-completion string) | |
507 | ) | |
508 | (setq file-cache-last-completion string) | |
509 | (setq completion-list (all-completions string file-cache-alist) | |
510 | len (length completion-list)) | |
511 | (if (> len 1) | |
512 | (progn | |
513 | (goto-char (point-max)) | |
514 | (insert-string | |
515 | (substring completion-string (length string))) | |
516 | ;; Add our own setup function to the Completions Buffer | |
517 | (let ((completion-setup-hook | |
518 | (reverse | |
519 | (append (list 'file-cache-completion-setup-function) | |
520 | completion-setup-hook))) | |
521 | ) | |
522 | (with-output-to-temp-buffer file-cache-completions-buffer | |
523 | (display-completion-list completion-list)) | |
524 | ) | |
525 | ) | |
526 | (setq file-cache-string (file-cache-file-name completion-string)) | |
527 | (if (string= file-cache-string (buffer-string)) | |
13161e8b RS |
528 | (file-cache-temp-minibuffer-message |
529 | file-cache-sole-match-message) | |
6b279740 RS |
530 | (erase-buffer) |
531 | (insert-string file-cache-string) | |
532 | (if file-cache-multiple-directory-message | |
533 | (file-cache-temp-minibuffer-message | |
534 | file-cache-multiple-directory-message))) | |
535 | ))) | |
13161e8b | 536 | |
6b279740 RS |
537 | ;; No match |
538 | ((eq completion-string nil) | |
539 | (file-cache-temp-minibuffer-message file-cache-no-match-message)) | |
540 | ) | |
541 | )) | |
542 | ||
543 | ;; Lifted from "complete.el" | |
544 | (defun file-cache-temp-minibuffer-message (msg) | |
545 | "A Lisp version of `temp_minibuffer_message' from minibuf.c." | |
546 | (let ((savemax (point-max))) | |
547 | (save-excursion | |
548 | (goto-char (point-max)) | |
549 | (insert msg)) | |
550 | (let ((inhibit-quit t)) | |
551 | (sit-for 2) | |
552 | (delete-region savemax (point-max)) | |
553 | (if quit-flag | |
554 | (setq quit-flag nil | |
555 | unread-command-events (list 7)))))) | |
556 | ||
557 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
558 | ;; Completion functions | |
559 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
560 | ||
561 | (defun file-cache-completion-setup-function () | |
562 | (set-buffer file-cache-completions-buffer) | |
563 | ||
564 | (if file-cache-completions-keymap | |
565 | nil | |
566 | (setq file-cache-completions-keymap | |
567 | (copy-keymap completion-list-mode-map)) | |
568 | (define-key file-cache-completions-keymap [mouse-2] | |
569 | 'file-cache-mouse-choose-completion) | |
570 | (define-key file-cache-completions-keymap "\C-m" | |
571 | 'file-cache-choose-completion)) | |
572 | ||
573 | (use-local-map file-cache-completions-keymap) | |
574 | ) | |
575 | ||
576 | (defun file-cache-choose-completion () | |
577 | "Choose a completion in the `*Completions*' buffer." | |
578 | (interactive) | |
579 | (let ((completion-no-auto-exit t)) | |
580 | (choose-completion) | |
581 | (select-window (active-minibuffer-window)) | |
13161e8b | 582 | (file-cache-minibuffer-complete nil) |
6b279740 RS |
583 | ) |
584 | ) | |
585 | ||
586 | (defun file-cache-mouse-choose-completion (event) | |
587 | "Choose a completion with the mouse." | |
588 | (interactive "e") | |
589 | (let ((completion-no-auto-exit t)) | |
590 | (mouse-choose-completion event) | |
591 | (select-window (active-minibuffer-window)) | |
13161e8b | 592 | (file-cache-minibuffer-complete nil) |
6b279740 RS |
593 | ) |
594 | ) | |
595 | ||
596 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
597 | ;; Debugging functions | |
598 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
599 | ||
600 | (defun file-cache-debug-read-from-minibuffer (file) | |
601 | "Debugging function." | |
602 | (interactive | |
603 | (list (completing-read "File Cache: " file-cache-alist))) | |
604 | (message "%s" (assoc file file-cache-alist)) | |
605 | ) | |
606 | ||
607 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
608 | ;; Keybindings | |
609 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
610 | ||
611 | ;;;###autoload (define-key minibuffer-local-completion-map [C-tab] 'file-cache-minibuffer-complete) | |
612 | ;;;###autoload (define-key minibuffer-local-map [C-tab] 'file-cache-minibuffer-complete) | |
613 | ;;;###autoload (define-key minibuffer-local-must-match-map [C-tab] 'file-cache-minibuffer-complete) | |
614 | ||
615 | (provide 'filecache) | |
616 | ||
617 | ;;; filecache.el ends here |