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2be55c9c RS |
1 | ;;; find-file.el --- find a file corresponding to this one given a pattern |
2 | ||
3 | ;; Author: Henry Guillaume <henry@qbd.com.au> | |
4 | ;; Keywords: c, matching, tools | |
5 | ||
732be465 | 6 | ;; Copyright (C) 1994, 1995 Free Software Foundation, Inc. |
2be55c9c RS |
7 | |
8 | ;;; This file is part of GNU Emacs. | |
9 | ||
10 | ;;; GNU Emacs is free software; you can redistribute it and/or modify | |
11 | ;;; it under the terms of the GNU General Public License as published by | |
12 | ;;; the Free Software Foundation; either version 2, or (at your option) | |
13 | ;;; any later version. | |
14 | ||
15 | ;;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;;; GNU General Public License for more details. | |
19 | ||
20 | ;;; You should have received a copy of the GNU General Public License | |
21 | ;;; along with GNU Emacs; see the file COPYING. If not, write to | |
22 | ;;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
23 | ||
24 | ;;; Commentary: | |
25 | ||
26 | ;; PURPOSE: | |
27 | ;; This package features a function called ff-find-other-file, which performs | |
28 | ;; the following function: | |
29 | ;; | |
30 | ;; When in a .c file, find the first corresponding .h file in a set | |
31 | ;; of directories and display it, and vice-versa from the .h file. | |
32 | ;; | |
33 | ;; Many people maintain their include file in a directory separate to their | |
34 | ;; src directory, and very often you may be editing a file and have a need to | |
35 | ;; visit the "other file". This package searches through a set of directories | |
36 | ;; to find that file. | |
37 | ;; | |
38 | ;; THE "OTHER FILE", or "corresponding file", generally has the same basename, | |
39 | ;; and just has a different extension as described by the ff-other-file-alist | |
40 | ;; variable: | |
41 | ;; | |
42 | ;; '(("\\.cc$" (".hh" ".h")) | |
43 | ;; ("\\.hh$" (".cc" ".C" ".CC" ".cxx" ".cpp"))) | |
44 | ;; | |
45 | ;; If the current file has a .cc extension, ff-find-other-file will attempt | |
46 | ;; to look for a .hh file, and then a .h file in some directory as described | |
47 | ;; below. The mechanism here is to replace the matched part of the original | |
48 | ;; filename with each of the corresponding extensions in turn. | |
49 | ;; | |
50 | ;; Alternatively, there are situations where the filename of the other file | |
51 | ;; cannot be determined easily with regexps. For example, a .c file may | |
52 | ;; have two corresponding .h files, for its public and private parts, or | |
53 | ;; the filename for the .c file contains part of the pathname of the .h | |
54 | ;; file, as between src/fooZap.cc and include/FOO/zap.hh. In that case, the | |
55 | ;; format above can be changed to include a function to be called when the | |
56 | ;; current file matches the regexp: | |
57 | ;; | |
58 | ;; '(("\\.cc$" cc-function) | |
59 | ;; ("\\.hh$" hh-function)) | |
60 | ;; | |
61 | ;; These functions must return a list consisting of the possible names of the | |
62 | ;; corresponding file, with or without path. There is no real need for more | |
63 | ;; than one function, and one could imagine the following value for cc-other- | |
64 | ;; file-alist: | |
65 | ;; | |
66 | ;; (setq cc-other-file-alist | |
67 | ;; '(("\\.cc$" ff-cc-hh-converter) | |
68 | ;; ("\\.hh$" ff-cc-hh-converter) | |
69 | ;; ("\\.c$" (".h")) | |
70 | ;; ("\\.h$" (".c" ".cc" ".C" ".CC" ".cxx" ".cpp")))) | |
71 | ;; | |
72 | ;; ff-cc-hh-converter is included at the end of this file as a reference. | |
73 | ;; | |
74 | ;; SEARCHING is carried out in a set of directories specified by the | |
75 | ;; ff-search-directories variable: | |
76 | ;; | |
77 | ;; ("." "../../src" "../include/*" "/usr/local/*/src/*" "$PROJECT/src") | |
78 | ;; | |
79 | ;; This means that the corresponding file will be searched for first in | |
80 | ;; the current directory, then in ../../src, then in one of the directories | |
81 | ;; under ../include, and so on. The star is _not_ a general wildcard | |
82 | ;; character: it just indicates that the subdirectories of this directory | |
83 | ;; must each be searched in turn. Environment variables will be expanded in | |
84 | ;; the ff-search-directories variable. | |
85 | ;; | |
86 | ;; If the point is on a #include line, the file to be #included is searched | |
87 | ;; for in the same manner. This can be disabled with the ff-ignore-include | |
88 | ;; variable, or by calling ff-get-other-file instead of ff-find-other-file. | |
89 | ;; | |
90 | ;; If the file was not found, ff-find-other-file will prompt you for where | |
91 | ;; to create the new "corresponding file" (defaults to the current directory), | |
92 | ;; unless the variable ff-always-try-to-create is set to nil. | |
93 | ;; | |
94 | ;; GIVEN AN ARGUMENT (with the ^U prefix), ff-find-other-file will get the | |
95 | ;; other file in another (the other?) window (see find-file-other-window and | |
96 | ;; switch-to-buffer-other-window). This can be set on a more permanent basis | |
97 | ;; by setting ff-always-in-other-window to t in which case the ^U prefix will | |
98 | ;; do the opposite of what was described above. | |
99 | ;; | |
100 | ;; THERE ARE FIVE AVAILABLE HOOKS, called in this order if non-nil: | |
101 | ;; | |
102 | ;; - ff-pre-find-hooks - called before the search for the other file starts | |
103 | ;; - ff-not-found-hooks - called when the other file could not be found | |
104 | ;; - ff-pre-load-hooks - called just before the other file is 'loaded' | |
105 | ;; - ff-file-created-hooks - called when the other file is created | |
106 | ;; - ff-post-load-hooks - called just after the other file is 'loaded' | |
107 | ;; | |
108 | ;; The *load-hooks allow you to place point where you want it in the other | |
109 | ;; file. | |
110 | ||
2be55c9c RS |
111 | ;; FEEDBACK: |
112 | ;; Please send me bug reports, bug fixes, and extensions, so that I can | |
113 | ;; merge them into the master source. | |
114 | ||
115 | ;; CREDITS: | |
116 | ;; Many thanks go to TUSC Computer Systems Pty Ltd for providing an environ- | |
117 | ;; ment that made the development of this package possible. | |
118 | ;; | |
119 | ;; Many thanks also go to all those who provided valuable feedback throughout | |
120 | ;; the development of this package: | |
121 | ;; Rolf Ebert in particular, Fritz Knabe, Heddy Boubaker, Sebastian Kremer, | |
122 | ;; Vasco Lopes Paulo, Mark A. Plaksin, Robert Lang, Trevor West, Kevin | |
123 | ;; Pereira & Benedict Lofstedt. | |
124 | ||
125 | ;; Code: | |
126 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
127 | ;; User definable variables: | |
128 | ||
129 | (defvar ff-pre-find-hooks nil | |
130 | "*List of functions to be called before the search for the file starts.") | |
131 | ||
132 | (defvar ff-pre-load-hooks nil | |
133 | "*List of functions to be called before the other file is loaded.") | |
134 | ||
135 | (defvar ff-post-load-hooks nil | |
136 | "*List of functions to be called after the other file is loaded.") | |
137 | ||
138 | (defvar ff-not-found-hooks nil | |
139 | "*List of functions to be called if the other file could not be found.") | |
140 | ||
141 | (defvar ff-file-created-hooks nil | |
142 | "*List of functions to be called if the other file needs to be created.") | |
143 | ||
144 | (defvar ff-case-fold-search nil | |
8c17509e | 145 | "*Non-nil means ignore cases in matches (see `case-fold-search'). |
2be55c9c RS |
146 | If you have extensions in different cases, you will want this to be nil.") |
147 | ||
148 | (defvar ff-always-in-other-window nil | |
8c17509e RS |
149 | "*If non-nil, find the corresponding file in another window by default. |
150 | To override this, give an argument to `ff-find-other-file'.") | |
2be55c9c RS |
151 | |
152 | (defvar ff-ignore-include nil | |
8c17509e | 153 | "*If non-nil, ignore `#include' lines.") |
2be55c9c RS |
154 | |
155 | (defvar ff-always-try-to-create t | |
156 | "*If non-nil, always attempt to create the other file if it was not found.") | |
157 | ||
158 | (defvar ff-quiet-mode nil | |
8c17509e | 159 | "*If non-nil, trace which directories are being searched.") |
2be55c9c RS |
160 | |
161 | (defvar ff-special-constructs | |
162 | '( | |
163 | ;; C/C++ include, for NeXTSTEP too | |
164 | ("^\#\\s *\\(include\\|import\\)\\s +[<\"]\\(.*\\)[>\"]" . | |
165 | (lambda () | |
166 | (setq fname (buffer-substring (match-beginning 2) (match-end 2))))) | |
167 | ||
168 | ;; Ada import | |
169 | ("^with[ \t]+\\([a-zA-Z0-9_\\.]+\\)" . | |
170 | (lambda () | |
171 | (setq fname (buffer-substring (match-beginning 1) (match-end 1))) | |
903a238c | 172 | (require 'ada-mode) |
2be55c9c | 173 | (setq fname (concat (ada-make-filename-from-adaname fname) |
903a238c | 174 | ada-spec-suffix)))) |
2be55c9c RS |
175 | ) |
176 | "*A list of regular expressions specifying how to recognise special | |
177 | constructs such as include files etc, and an associated method for | |
178 | extracting the filename from that construct.") | |
179 | ||
180 | (defvar ff-other-file-alist 'cc-other-file-alist | |
181 | "*Alist of extensions to find given the current file's extension. | |
182 | ||
183 | This list should contain the most used extensions before the others, | |
184 | since the search algorithm searches sequentially through each | |
8c17509e RS |
185 | directory specified in `ff-search-directories'. If a file is not found, |
186 | a new one is created with the first matching extension (`.cc' yields `.hh'). | |
187 | This alist should be set by the major mode.") | |
2be55c9c RS |
188 | |
189 | (defvar ff-search-directories 'cc-search-directories | |
190 | "*List of directories to search for a specific file. | |
191 | ||
8c17509e | 192 | Set by default to `cc-search-directories', expanded at run-time. |
2be55c9c RS |
193 | |
194 | This list is searched through with each extension specified in | |
8c17509e | 195 | `ff-other-file-alist' that matches this file's extension. So the |
2be55c9c RS |
196 | longer the list, the longer it'll take to realise that a file |
197 | may not exist. | |
198 | ||
199 | A typical format is | |
200 | ||
201 | '(\".\" \"/usr/include/*\" \"$PROJECT/*/include\") | |
202 | ||
8c17509e | 203 | Environment variables can be inserted between slashes (`/'). |
2be55c9c | 204 | They will be replaced by their definition. If a variable does |
8c17509e | 205 | not exist, it is replaced (silently) with an empty string. |
2be55c9c | 206 | |
8c17509e RS |
207 | The stars are *not* wildcards: they are searched for together with |
208 | the preceding slash. The star represents all the subdirectories except | |
209 | `..', and each of these subdirectories will be searched in turn.") | |
2be55c9c RS |
210 | |
211 | (defvar cc-search-directories | |
212 | '("." "/usr/include/*" "/usr/local/include/*") | |
8c17509e | 213 | "*See the description of the `ff-search-directories' variable.") |
2be55c9c RS |
214 | |
215 | (defvar cc-other-file-alist | |
216 | '( | |
217 | ("\\.cc$" (".hh" ".h")) | |
218 | ("\\.hh$" (".cc" ".C")) | |
219 | ||
220 | ("\\.c$" (".h")) | |
221 | ("\\.h$" (".c" ".cc" ".C" ".CC" ".cxx" ".cpp")) | |
222 | ||
223 | ("\\.C$" (".H" ".hh" ".h")) | |
224 | ("\\.H$" (".C" ".CC")) | |
225 | ||
226 | ("\\.CC$" (".HH" ".H" ".hh" ".h")) | |
227 | ("\\.HH$" (".CC")) | |
228 | ||
229 | ("\\.cxx$" (".hh" ".h")) | |
230 | ("\\.cpp$" (".hh" ".h")) | |
231 | ) | |
232 | "*Alist of extensions to find given the current file's extension. | |
233 | ||
234 | This list should contain the most used extensions before the others, | |
235 | since the search algorithm searches sequentially through each directory | |
8c17509e RS |
236 | specified in `ff-search-directories'. If a file is not found, a new one |
237 | is created with the first matching extension (`.cc' yields `.hh').") | |
2be55c9c RS |
238 | |
239 | (defvar ada-search-directories | |
240 | '("." "/usr/adainclude" "/usr/local/adainclude") | |
8c17509e | 241 | "*See the description for the `ff-search-directories' variable.") |
2be55c9c RS |
242 | |
243 | (defvar ada-other-file-alist | |
244 | '( | |
245 | ("\\.ads$" (".adb")) ;; Ada specs and bodies | |
246 | ("\\.adb$" (".ads")) ;; GNAT filename conventions | |
247 | ) | |
248 | "*Alist of extensions to find given the current file's extension. | |
249 | ||
250 | This list should contain the most used extensions before the others, | |
251 | since the search algorithm searches sequentially through each directory | |
8c17509e RS |
252 | specified in `ada-search-directories'. If a file is not found, a new one |
253 | is created with the first matching extension (`.adb' yields `.ads'). | |
2be55c9c RS |
254 | ") |
255 | ||
2be55c9c RS |
256 | (defvar modula2-other-file-alist |
257 | '( | |
258 | ("\\.mi$" (".md")) ;; Modula-2 module definition | |
259 | ("\\.md$" (".mi")) ;; and implementation. | |
260 | ) | |
8c17509e | 261 | "*See the description for the `ff-search-directories' variable.") |
2be55c9c RS |
262 | |
263 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
264 | ;; No user definable variables beyond this point! | |
265 | ;; ============================================== | |
266 | ||
267 | (make-variable-buffer-local 'ff-pre-find-hooks) | |
268 | (make-variable-buffer-local 'ff-pre-load-hooks) | |
269 | (make-variable-buffer-local 'ff-post-load-hooks) | |
270 | (make-variable-buffer-local 'ff-not-found-hooks) | |
271 | (make-variable-buffer-local 'ff-file-created-hooks) | |
272 | (make-variable-buffer-local 'ff-case-fold-search) | |
273 | (make-variable-buffer-local 'ff-always-in-other-window) | |
274 | (make-variable-buffer-local 'ff-ignore-include) | |
275 | (make-variable-buffer-local 'ff-quiet-mode) | |
276 | (make-variable-buffer-local 'ff-other-file-alist) | |
277 | (make-variable-buffer-local 'ff-search-directories) | |
278 | ||
279 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
280 | ;; User entry points | |
281 | ||
282 | ;;;###autoload | |
283 | (defun ff-get-other-file (&optional in-other-window) | |
8c17509e RS |
284 | "Find the header or source file corresponding to this file. |
285 | See also the documentation for `ff-find-other-file;. | |
2be55c9c | 286 | |
8c17509e | 287 | If optional IN-OTHER-WINDOW is non-nil, find the file in another window." |
2be55c9c RS |
288 | (interactive "P") |
289 | (let ((ignore ff-ignore-include)) | |
290 | (setq ff-ignore-include t) | |
291 | (ff-find-the-other-file in-other-window) | |
292 | (setq ff-ignore-include ignore))) | |
293 | ||
294 | ;;;###autoload | |
295 | (defun ff-find-other-file (&optional in-other-window ignore-include) | |
8c17509e RS |
296 | "Find the header or source file corresponding to this file. |
297 | Being on a `#include' line pulls in that file. | |
2be55c9c | 298 | |
8c17509e RS |
299 | If optional IN-OTHER-WINDOW is non-nil, find the file in the other window. |
300 | If optional IGNORE-INCLUDE is non-nil, ignore being on `#include' lines. | |
2be55c9c RS |
301 | |
302 | Variables of interest include: | |
303 | ||
304 | - ff-case-fold-search | |
305 | Non-nil means ignore cases in matches (see case-fold-search). | |
306 | If you have extensions in different cases, you will want this to be nil. | |
307 | ||
308 | - ff-always-in-other-window | |
309 | If non-nil, always open the other file in another window, unless an | |
310 | argument is given to ff-find-other-file. | |
311 | ||
312 | - ff-ignore-include | |
313 | If non-nil, ignores #include lines. | |
314 | ||
315 | - ff-always-try-to-create | |
316 | If non-nil, always attempt to create the other file if it was not found. | |
317 | ||
318 | - ff-quiet-mode | |
319 | If non-nil, traces which directories are being searched. | |
320 | ||
321 | - ff-special-constructs | |
322 | A list of regular expressions specifying how to recognise special | |
323 | constructs such as include files etc, and an associated method for | |
324 | extracting the filename from that construct. | |
325 | ||
326 | - ff-other-file-alist | |
327 | Alist of extensions to find given the current file's extension. | |
328 | ||
329 | - ff-search-directories | |
330 | List of directories searched through with each extension specified in | |
331 | ff-other-file-alist that matches this file's extension. | |
332 | ||
333 | - ff-pre-find-hooks | |
334 | List of functions to be called before the search for the file starts. | |
335 | ||
336 | - ff-pre-load-hooks | |
337 | List of functions to be called before the other file is loaded. | |
338 | ||
339 | - ff-post-load-hooks | |
340 | List of functions to be called after the other file is loaded. | |
341 | ||
342 | - ff-not-found-hooks | |
343 | List of functions to be called if the other file could not be found. | |
344 | ||
345 | - ff-file-created-hooks | |
346 | List of functions to be called if the other file has been created." | |
347 | (interactive "P") | |
348 | (let ((ignore ff-ignore-include)) | |
349 | (setq ff-ignore-include ignore-include) | |
350 | (ff-find-the-other-file in-other-window) | |
351 | (setq ff-ignore-include ignore))) | |
352 | ||
353 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
354 | ;; Support functions | |
355 | ||
8c17509e | 356 | (defun ff-emacs-19 () |
2be55c9c RS |
357 | (string-match "^19\\.[0-9]+\\.[0-9]+$" emacs-version)) |
358 | ||
359 | (defun ff-xemacs () | |
360 | (or (string-match "Lucid" emacs-version) | |
361 | (string-match "XEmacs" emacs-version))) | |
362 | ||
363 | (defun ff-find-the-other-file (&optional in-other-window) | |
8c17509e RS |
364 | "Find the header or source file corresponding to the current file. |
365 | Being on a `#include' line pulls in that file, but see the help on | |
366 | the `ff-ignore-include' variable. | |
2be55c9c | 367 | |
8c17509e | 368 | If optional IN-OTHER-WINDOW is non-nil, find the file in another window." |
2be55c9c RS |
369 | |
370 | (let (match ;; matching regexp for this file | |
371 | suffixes ;; set of replacing regexps for the matching regexp | |
372 | action ;; function to generate the names of the other files | |
373 | fname ;; basename of this file | |
374 | pos ;; where we start matching filenames | |
375 | stub ;; name of the file without extension | |
376 | alist ;; working copy of the list of file extensions | |
377 | pathname ;; the pathname of the file or the #include line | |
378 | default-name ;; file we should create if none found | |
379 | format ;; what we have to match | |
380 | found ;; name of the file or buffer found - nil if none | |
381 | dirs ;; local value of ff-search-directories | |
382 | no-match) ;; whether we know about this kind of file | |
383 | ||
384 | (if ff-pre-find-hooks | |
385 | (run-hooks 'ff-pre-find-hooks)) | |
386 | ||
387 | (message "Working...") | |
388 | ||
389 | (setq dirs | |
390 | (if (symbolp ff-search-directories) | |
391 | (ff-list-replace-env-vars (symbol-value ff-search-directories)) | |
392 | (ff-list-replace-env-vars ff-search-directories))) | |
393 | ||
394 | (save-excursion | |
395 | (beginning-of-line 1) | |
396 | (setq fname (ff-treat-as-special))) | |
397 | ||
398 | (cond | |
399 | ((and (not ff-ignore-include) fname) | |
400 | (setq default-name fname) | |
401 | (setq found (ff-get-file dirs fname nil in-other-window))) | |
402 | ||
403 | ;; let's just get the corresponding file | |
404 | (t | |
405 | (setq alist (if (symbolp ff-other-file-alist) | |
406 | (symbol-value ff-other-file-alist) | |
407 | ff-other-file-alist) | |
408 | pathname (if (buffer-file-name) | |
409 | (buffer-file-name) | |
410 | "/none.none")) | |
411 | ||
412 | (string-match ".*/\\(.+\\)$" pathname) | |
413 | (setq fname (substring pathname (match-beginning 1) (match-end 1)) | |
414 | no-match nil | |
415 | match (car alist)) | |
416 | ||
417 | ;; find the table entry corresponding to this file | |
418 | (setq pos (ff-string-match (car match) fname)) | |
419 | (while (and match (if (and pos (>= pos 0)) nil (not pos))) | |
420 | (setq alist (cdr alist)) | |
421 | (setq match (car alist)) | |
422 | (setq pos (ff-string-match (car match) fname))) | |
423 | ||
424 | ;; no point going on if we haven't found anything | |
425 | (if (not match) | |
426 | (setq no-match t) | |
427 | ||
428 | ;; otherwise, suffixes contains what we need | |
429 | (setq suffixes (car (cdr match)) | |
430 | action (car (cdr match)) | |
431 | found nil) | |
432 | ||
433 | ;; if we have a function to generate new names, | |
434 | ;; invoke it with the name of the current file | |
435 | (if (and (atom action) (fboundp action)) | |
436 | (progn | |
437 | (setq suffixes (funcall action (buffer-file-name)) | |
438 | match (cons (car match) (list suffixes)) | |
439 | stub nil | |
440 | default-name (car suffixes))) | |
441 | ||
442 | ;; otherwise build our filename stub | |
443 | (cond | |
444 | ||
445 | ;; get around the problem that 0 and nil both mean false! | |
446 | ((= pos 0) | |
447 | (setq format "") | |
448 | (setq stub "") | |
449 | ) | |
450 | ||
451 | (t | |
452 | (setq format (concat "\\(.+\\)" (car match))) | |
453 | (string-match format fname) | |
454 | (setq stub (substring fname (match-beginning 1) (match-end 1))) | |
455 | )) | |
456 | ||
457 | ;; if we find nothing, we should try to get a file like this one | |
458 | (setq default-name | |
459 | (concat stub (car (car (cdr match)))))) | |
460 | ||
461 | ;; do the real work - find the file | |
462 | (setq found | |
463 | (ff-get-file dirs | |
464 | stub | |
465 | suffixes | |
466 | in-other-window))))) | |
467 | ||
468 | (cond | |
469 | (no-match ;; could not even determine the other file | |
470 | (message "")) | |
471 | ||
472 | (t | |
473 | (cond | |
474 | ||
475 | ((not found) ;; could not find the other file | |
476 | ||
477 | (if ff-not-found-hooks ;; run the hooks | |
478 | (run-hooks 'ff-not-found-hooks)) | |
479 | ||
480 | (cond | |
481 | (ff-always-try-to-create ;; try to create the file | |
482 | (let (name pathname) | |
483 | ||
484 | (setq name | |
485 | (expand-file-name | |
486 | (read-file-name | |
487 | (format "Find or create %s in: " default-name) | |
488 | default-directory default-name nil))) | |
489 | ||
490 | (setq pathname | |
491 | (if (file-directory-p name) | |
492 | (concat (file-name-as-directory name) default-name) | |
493 | (setq found name))) | |
494 | ||
495 | (ff-find-file pathname in-other-window t))) | |
496 | ||
497 | (t ;; don't create the file, just whinge | |
498 | (message "no file found for %s" fname)))) | |
499 | ||
500 | (t ;; matching file found | |
501 | nil)))) | |
502 | ||
503 | found)) ;; return buffer-name or filename | |
504 | ||
505 | (defun ff-get-file (search-dirs fname-stub &optional suffix-list other-window) | |
506 | "Find a file in the SEARCH-DIRS with the given FILENAME (or filename stub). | |
507 | If (optional) SUFFIXES is nil, search for fname, otherwise search for fname | |
508 | with each of the given suffixes. Gets the file or the buffer corresponding | |
509 | to the name of the first file found, or nil. | |
510 | ||
511 | Arguments: (search-dirs fname-stub &optional suffix-list in-other-window) | |
512 | " | |
513 | (let ((filename (ff-get-file-name search-dirs fname-stub suffix-list))) | |
514 | ||
515 | (cond | |
516 | ((not filename) | |
517 | nil) | |
518 | ||
519 | ((bufferp (get-buffer filename)) | |
520 | (ff-switch-to-buffer filename other-window) | |
521 | filename) | |
522 | ||
523 | ((file-exists-p filename) | |
524 | (ff-find-file filename other-window nil) | |
525 | filename) | |
526 | ||
527 | (t | |
528 | nil)))) | |
529 | ||
530 | (defun ff-get-file-name (search-dirs fname-stub &optional suffix-list) | |
531 | "Find a file in the SEARCH-DIRS with the given FILENAME (or filename stub). | |
532 | If (optional) SUFFIXES is nil, search for fname, otherwise search for fname | |
533 | with each of the given suffixes. Returns the name of the first file found. | |
534 | ||
535 | Arguments: (search-dirs fname-stub &optional suffix-list) | |
536 | " | |
537 | (let* (dirs ;; working copy of dirs to search | |
538 | dir ;; the current dir considered | |
539 | file ;; filename being looked for | |
540 | rest ;; pathname after first /* | |
541 | this-suffix ;; the suffix we are currently considering | |
542 | suffixes ;; working copy of suffix-list | |
543 | filename ;; built filename | |
544 | blist ;; list of live buffers | |
545 | buf ;; current buffer in blist | |
546 | found) ;; whether we have found anything | |
547 | ||
548 | (setq suffixes suffix-list) | |
549 | ||
550 | ;; suffixes is nil => fname-stub is the file we are looking for | |
551 | ;; otherwise fname-stub is a stub, and we append a suffix | |
552 | (if suffixes | |
553 | (setq this-suffix (car suffixes)) | |
554 | (setq this-suffix "") | |
555 | (setq suffixes (list ""))) | |
556 | ||
557 | ;; find whether the file is in a buffer first | |
558 | (while (and suffixes (not found)) | |
559 | (setq filename (concat fname-stub this-suffix)) | |
560 | ||
561 | (if (not ff-quiet-mode) | |
562 | (message "finding buffer %s..." filename)) | |
563 | ||
564 | (if (bufferp (get-buffer filename)) | |
565 | (setq found filename)) | |
566 | ||
567 | (setq blist (buffer-list)) | |
568 | (setq buf (buffer-name (car blist))) | |
569 | (while (and blist (not found)) | |
570 | ||
571 | (if (string-match (concat filename "<[0-9]+>") buf) | |
572 | (setq found buf)) | |
573 | ||
574 | (setq blist (cdr blist)) | |
575 | (setq buf (buffer-name (car blist)))) | |
576 | ||
577 | (setq suffixes (cdr suffixes)) | |
578 | (setq this-suffix (car suffixes))) | |
579 | ||
580 | ;; now look for the real file | |
581 | (setq dirs search-dirs) | |
582 | (setq dir (car dirs)) | |
583 | (while (and (not found) dirs) | |
584 | ||
585 | (setq suffixes suffix-list) | |
586 | ||
587 | ;; if dir does not contain '/*', look for the file | |
588 | (if (and dir (not (string-match "\\([^*]*\\)/\\\*\\(/.*\\)*" dir))) | |
589 | (progn | |
590 | ||
591 | ;; suffixes is nil => fname-stub is the file we are looking for | |
592 | ;; otherwise fname-stub is a stub, and we append a suffix | |
593 | (if suffixes | |
594 | (setq this-suffix (car suffixes)) | |
595 | (setq this-suffix "") | |
596 | (setq suffixes (list ""))) | |
597 | ||
598 | (while (and suffixes (not found)) | |
599 | ||
600 | (setq filename (concat fname-stub this-suffix)) | |
601 | (setq file (concat dir "/" filename)) | |
602 | ||
603 | (if (not ff-quiet-mode) | |
604 | (message "finding %s..." file)) | |
605 | ||
606 | (if (file-exists-p file) | |
607 | (setq found file)) | |
608 | ||
609 | (setq suffixes (cdr suffixes)) | |
610 | (setq this-suffix (car suffixes)))) | |
611 | ||
612 | ;; otherwise dir matches the '/*', so search each dir separately | |
613 | (progn | |
614 | (if (match-beginning 2) | |
615 | (setq rest (substring dir (match-beginning 2) (match-end 2))) | |
616 | (setq rest "") | |
617 | ) | |
618 | (setq dir (substring dir (match-beginning 1) (match-end 1))) | |
619 | ||
620 | (let ((dirlist (ff-all-dirs-under dir '(".."))) | |
621 | this-dir compl-dirs) | |
622 | ||
623 | (setq this-dir (car dirlist)) | |
624 | (while dirlist | |
625 | (setq compl-dirs | |
626 | (append | |
627 | compl-dirs | |
628 | (list (concat this-dir rest)) | |
629 | )) | |
630 | (setq dirlist (cdr dirlist)) | |
631 | (setq this-dir (car dirlist))) | |
632 | ||
633 | (if compl-dirs | |
634 | (setq found (ff-get-file-name compl-dirs | |
635 | fname-stub | |
636 | suffix-list)))))) | |
637 | (setq dirs (cdr dirs)) | |
638 | (setq dir (car dirs))) | |
639 | ||
640 | (if found | |
641 | (message "%s found" found)) | |
642 | ||
643 | found)) | |
644 | ||
645 | (defun ff-string-match (regexp string &optional start) | |
8c17509e RS |
646 | "Like string-match (which see), but set `case-fold-search' temporarily. |
647 | The value used comes from `ff-case-fold-search'." | |
648 | (let ((case-fold-search ff-case-fold-search)) | |
2be55c9c | 649 | (if regexp |
8c17509e | 650 | (string-match regexp string start)))) |
2be55c9c RS |
651 | |
652 | (defun ff-list-replace-env-vars (search-list) | |
653 | "Replace environment variables (of the form $VARIABLE) in SEARCH-LIST." | |
654 | (let (list | |
655 | (var (car search-list))) | |
656 | (while search-list | |
657 | (if (string-match "\\(.*\\)\\$[({]*\\([a-zA-Z0-9_]+\\)[)}]*\\(.*\\)" var) | |
658 | (setq var | |
659 | (concat | |
660 | (substring var (match-beginning 1) (match-end 1)) | |
661 | (getenv (substring var (match-beginning 2) (match-end 2))) | |
662 | (substring var (match-beginning 3) (match-end 3))))) | |
663 | (setq search-list (cdr search-list)) | |
664 | (setq list (cons var list)) | |
665 | (setq var (car search-list))) | |
666 | (setq search-list (reverse list)))) | |
667 | ||
668 | (defun ff-treat-as-special () | |
8c17509e RS |
669 | "Returns the file to look for if the construct was special, else nil. |
670 | The construct is defined in the variable `ff-special-constructs' (which see)." | |
2be55c9c RS |
671 | (let* (fname |
672 | (list ff-special-constructs) | |
673 | (elem (car list)) | |
674 | (regexp (car elem)) | |
675 | (match (cdr elem))) | |
676 | (while (and list (not fname)) | |
677 | (if (and (looking-at regexp) match) | |
678 | (setq fname (funcall match))) | |
679 | (setq list (cdr list)) | |
680 | (setq elem (car list)) | |
681 | (setq regexp (car elem)) | |
682 | (setq match (cdr elem))) | |
683 | fname)) | |
684 | ||
685 | (defun ff-basename (string) | |
8c17509e | 686 | "Return the basename of PATHNAME." |
2be55c9c RS |
687 | (setq string (concat "/" string)) |
688 | (string-match ".*/\\([^/]+\\)$" string) | |
689 | (setq string (substring string (match-beginning 1) (match-end 1)))) | |
690 | ||
691 | (defun ff-all-dirs-under (here &optional exclude) | |
8c17509e | 692 | "Get all the directory files under directory HERE. |
2be55c9c RS |
693 | Exclude all files in the optional EXCLUDE list." |
694 | (if (file-directory-p here) | |
695 | (condition-case nil | |
696 | (progn | |
697 | (let ((files (directory-files here t)) | |
698 | (dirlist (list)) | |
699 | file) | |
700 | (while files | |
701 | (setq file (car files)) | |
702 | (if (and | |
703 | (file-directory-p file) | |
704 | (not (member (ff-basename file) exclude))) | |
705 | (setq dirlist (cons file dirlist))) | |
706 | (setq files (cdr files))) | |
707 | (setq dirlist (reverse dirlist)))) | |
708 | (error nil)) | |
709 | nil)) | |
710 | ||
711 | (defun ff-switch-file (f1 f2 file &optional in-other-window new-file) | |
8c17509e RS |
712 | "Call F1 or F2 on FILE, according to IN-OTHER-WINDOW. |
713 | In addition, this runs various hooks. | |
2be55c9c | 714 | |
8c17509e RS |
715 | Either F1 or F2 receives FILE as the sole argument. |
716 | The decision of which one to call is based on IN-OTHER-WINDOW | |
717 | and on the global variable `ff-always-in-other-window'. | |
2be55c9c | 718 | |
8c17509e RS |
719 | F1 and F2 are typically `find-file' / `find-file-other-window' |
720 | or `switch-to-buffer' / `switch-to-buffer-other-window' function pairs. | |
721 | ||
722 | If optional NEW-FILE is t, then a special hook (`ff-file-created-hooks') is | |
723 | called before `ff-post-load-hooks'." | |
2be55c9c RS |
724 | (if ff-pre-load-hooks |
725 | (run-hooks 'ff-pre-load-hooks)) | |
726 | (if (or | |
727 | (and in-other-window (not ff-always-in-other-window)) | |
728 | (and (not in-other-window) ff-always-in-other-window)) | |
729 | (funcall f2 file) | |
730 | (funcall f1 file)) | |
731 | (if new-file | |
732 | (if ff-file-created-hooks | |
733 | (run-hooks 'ff-file-created-hooks))) | |
734 | (if ff-post-load-hooks | |
735 | (run-hooks 'ff-post-load-hooks))) | |
736 | ||
737 | (defun ff-find-file (file &optional in-other-window new-file) | |
8c17509e | 738 | "Like `find-file' (which see), but may put the file in another window." |
2be55c9c RS |
739 | (ff-switch-file 'find-file |
740 | 'find-file-other-window | |
741 | file in-other-window new-file)) | |
742 | ||
743 | (defun ff-switch-to-buffer (file &optional in-other-window) | |
8c17509e | 744 | "Like `switch-to-buffer' (which see), but may put the buffer in another window." |
2be55c9c | 745 | |
2be55c9c RS |
746 | (ff-switch-file 'switch-to-buffer |
747 | 'switch-to-buffer-other-window | |
748 | file in-other-window nil)) | |
749 | ||
750 | (cond | |
8c17509e | 751 | ((ff-emacs-19) |
2be55c9c RS |
752 | (defun ff-goto-click (event) |
753 | (set-buffer (window-buffer (posn-window (event-end event)))) | |
754 | (goto-char (posn-point (event-end event)))) | |
755 | ||
756 | ;;;###autoload | |
757 | (defun ff-mouse-find-other-file (event) | |
758 | "Visit the file you click on." | |
759 | (interactive "e") | |
760 | (save-excursion | |
761 | (ff-goto-click event) | |
762 | (ff-find-other-file nil))) | |
763 | ||
764 | ;;;###autoload | |
765 | (defun ff-mouse-find-other-file-other-window (event) | |
766 | "Visit the file you click on." | |
767 | (interactive "e") | |
768 | (save-excursion | |
769 | (ff-goto-click event) | |
770 | (ff-find-other-file t))) | |
771 | ||
772 | ;;;###autoload | |
773 | (defun locate-file (fname dirs &optional suffix-list ignore-perms) | |
774 | "Defines XEmacs look-alike locate-file for GNU Emacs-19." | |
775 | (interactive) | |
776 | (ff-get-file dirs fname suffix-list)) | |
777 | ) | |
778 | ||
779 | ((ff-xemacs) | |
780 | ||
781 | ;;;###autoload | |
782 | (defun ff-mouse-find-other-file (event) | |
783 | "Visit the file you click on." | |
784 | (interactive "@e") | |
785 | (save-excursion | |
786 | (mouse-set-point event) | |
787 | (ff-find-other-file nil))) | |
788 | ||
789 | ;;;###autoload | |
790 | (defun ff-mouse-find-other-file-other-window (event) | |
791 | "Visit the file you click on." | |
792 | (interactive "@e") | |
793 | (save-excursion | |
794 | (mouse-set-point event) | |
795 | (ff-find-other-file t))) | |
796 | )) | |
797 | ||
798 | (provide 'find-file) | |
799 | ||
800 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
801 | ;; This section offers an example of user defined function to select files | |
802 | ||
8c17509e RS |
803 | (defun ff-upcase-p (string &optional start end) |
804 | "Return t if this string is all uppercase. | |
805 | Given START and/or END, checks between these characters." | |
2be55c9c RS |
806 | (let (match str) |
807 | (if (not start) | |
808 | (setq start 0)) | |
809 | (if (not end) | |
810 | (setq end (length string))) | |
811 | (if (= start end) | |
812 | (setq end (1+ end))) | |
813 | (setq str (substring string start end)) | |
814 | (if (and | |
815 | (ff-string-match "[A-Z]+" str) | |
816 | (setq match (match-data)) | |
817 | (= (car match) 0) | |
818 | (= (car (cdr match)) (length str))) | |
819 | t | |
820 | nil))) | |
821 | ||
822 | (defun ff-cc-hh-converter (arg) | |
8c17509e RS |
823 | "Discriminate file extensions. |
824 | Build up a new file list based possibly on part of the directory name | |
825 | and the name of the file passed in." | |
2be55c9c RS |
826 | (ff-string-match "\\(.*\\)/\\([^/]+\\)/\\([^.]+\\).\\([^/]+\\)$" arg) |
827 | (let ((path (if (match-beginning 1) | |
828 | (substring arg (match-beginning 1) (match-end 1)) nil)) | |
829 | (dire (if (match-beginning 2) | |
830 | (substring arg (match-beginning 2) (match-end 2)) nil)) | |
831 | (file (if (match-beginning 3) | |
832 | (substring arg (match-beginning 3) (match-end 3)) nil)) | |
833 | (extn (if (match-beginning 4) | |
834 | (substring arg (match-beginning 4) (match-end 4)) nil)) | |
835 | return-list) | |
836 | (cond | |
837 | ;; fooZapJunk.cc => ZapJunk.{hh,h} or fooZapJunk.{hh,h} | |
838 | ((and (string= extn "cc") | |
839 | (ff-string-match "^\\([a-z]+\\)\\([A-Z].+\\)$" file)) | |
840 | (let ((stub (substring file (match-beginning 2) (match-end 2)))) | |
841 | (setq dire (upcase (substring file (match-beginning 1) (match-end 1)))) | |
842 | (setq return-list (list (concat stub ".hh") | |
843 | (concat stub ".h") | |
844 | (concat file ".hh") | |
845 | (concat file ".h"))) | |
846 | )) | |
847 | ;; FOO/ZapJunk.hh => fooZapJunk.{cc,C} or ZapJunk.{cc,C} | |
8c17509e | 848 | ((and (string= extn "hh") (ff-upcase-p dire) file) |
2be55c9c RS |
849 | (let ((stub (concat (downcase dire) file))) |
850 | (setq return-list (list (concat stub ".cc") | |
851 | (concat stub ".C") | |
852 | (concat file ".cc") | |
853 | (concat file ".C"))) | |
854 | )) | |
855 | ;; zap.cc => zap.hh or zap.h | |
856 | ((string= extn "cc") | |
857 | (let ((stub file)) | |
858 | (setq return-list (list (concat stub ".hh") | |
859 | (concat stub ".h"))) | |
860 | )) | |
861 | ;; zap.hh => zap.cc or zap.C | |
862 | ((string= extn "hh") | |
863 | (let ((stub file)) | |
864 | (setq return-list (list (concat stub ".cc") | |
865 | (concat stub ".C"))) | |
866 | )) | |
867 | (t | |
868 | nil)) | |
869 | ||
870 | return-list)) | |
871 | ||
872 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
873 | ;; This section offers an example of user defined function to place point. | |
874 | ;; The regexps are Ada specific. | |
875 | ||
876 | (defvar ff-function-name nil "Name of the function we are in.") | |
877 | ||
878 | (defvar ada-procedure-start-regexp) | |
879 | (defvar ada-package-start-regexp) | |
880 | ||
881 | ;; bind with (setq ff-pre-load-hooks 'ff-which-function-are-we-in) | |
882 | ;; | |
883 | (defun ff-which-function-are-we-in () | |
8c17509e RS |
884 | "Return the name of the function whose definition/declaration point is in. |
885 | Also remember that name in `ff-function-name'." | |
2be55c9c RS |
886 | |
887 | (setq ff-function-name nil) | |
888 | ||
889 | (save-excursion | |
890 | (if (re-search-backward ada-procedure-start-regexp nil t) | |
891 | (setq ff-function-name (buffer-substring (match-beginning 0) | |
892 | (match-end 0))) | |
893 | ; we didn't find a procedure start, perhaps there is a package | |
894 | (if (re-search-backward ada-package-start-regexp nil t) | |
895 | (setq ff-function-name (buffer-substring (match-beginning 0) | |
896 | (match-end 0))) | |
897 | )))) | |
898 | ||
899 | ;; bind with (setq ff-post-load-hooks 'ff-set-point-accordingly) | |
900 | ;; | |
901 | (defun ff-set-point-accordingly () | |
8c17509e | 902 | "Find the function specified in `ff-function-name'. |
2ab6bb14 | 903 | That name was previously determined by `ff-which-function-are-we-in'." |
2be55c9c RS |
904 | (if ff-function-name |
905 | (progn | |
906 | (goto-char (point-min)) | |
907 | (search-forward ff-function-name nil t)))) | |
908 | ||
909 | ;; find-file.el ends here | |
910 |