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0f76d837 JL |
1 | ;;; ffap.el --- find file (or url) at point |
2 | ||
acaf905b | 3 | ;; Copyright (C) 1995-1997, 2000-2012 Free Software Foundation, Inc. |
0f76d837 | 4 | |
b578f267 | 5 | ;; Author: Michelangelo Grigni <mic@mathcs.emory.edu> |
c45f4fd9 | 6 | ;; Maintainer: FSF |
87e2d039 | 7 | ;; Created: 29 Mar 1993 |
f5f727f8 | 8 | ;; Keywords: files, hypermedia, matching, mouse, convenience |
3788c735 | 9 | ;; X-URL: ftp://ftp.mathcs.emory.edu/pub/mic/emacs/ |
213d9a4f RS |
10 | |
11 | ;; This file is part of GNU Emacs. | |
12 | ||
eb3fa2cf | 13 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
213d9a4f | 14 | ;; it under the terms of the GNU General Public License as published by |
eb3fa2cf GM |
15 | ;; the Free Software Foundation, either version 3 of the License, or |
16 | ;; (at your option) any later version. | |
213d9a4f RS |
17 | |
18 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | ;; GNU General Public License for more details. | |
22 | ||
23 | ;; You should have received a copy of the GNU General Public License | |
eb3fa2cf | 24 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
213d9a4f | 25 | |
213d9a4f | 26 | \f |
87e2d039 | 27 | ;;; Commentary: |
213d9a4f | 28 | ;; |
87e2d039 RS |
29 | ;; Command find-file-at-point replaces find-file. With a prefix, it |
30 | ;; behaves exactly like find-file. Without a prefix, it first tries | |
41d34bed | 31 | ;; to guess a default file or URL from the text around the point |
87e2d039 RS |
32 | ;; (`ffap-require-prefix' swaps these behaviors). This is useful for |
33 | ;; following references in situations such as mail or news buffers, | |
34 | ;; README's, MANIFEST's, and so on. Submit bugs or suggestions with | |
35 | ;; M-x ffap-bug. | |
213d9a4f | 36 | ;; |
25050dab | 37 | ;; For the default installation, add this line to your .emacs file: |
213d9a4f | 38 | ;; |
87e2d039 | 39 | ;; (ffap-bindings) ; do default key bindings |
213d9a4f | 40 | ;; |
87e2d039 | 41 | ;; ffap-bindings makes the following global key bindings: |
213d9a4f | 42 | ;; |
c99310d5 JL |
43 | ;; C-x C-f find-file-at-point (abbreviated as ffap) |
44 | ;; C-x C-r ffap-read-only | |
45 | ;; C-x C-v ffap-alternate-file | |
46 | ;; | |
47 | ;; C-x d dired-at-point | |
48 | ;; C-x C-d ffap-list-directory | |
49 | ;; | |
50 | ;; C-x 4 f ffap-other-window | |
51 | ;; C-x 4 r ffap-read-only-other-window | |
52 | ;; C-x 4 d ffap-dired-other-window | |
53 | ;; | |
54 | ;; C-x 5 f ffap-other-frame | |
55 | ;; C-x 5 r ffap-read-only-other-frame | |
56 | ;; C-x 5 d ffap-dired-other-frame | |
57 | ;; | |
87e2d039 | 58 | ;; S-mouse-3 ffap-at-mouse |
0948761d | 59 | ;; C-S-mouse-3 ffap-menu |
213d9a4f | 60 | ;; |
87e2d039 RS |
61 | ;; ffap-bindings also adds hooks to make the following local bindings |
62 | ;; in vm, gnus, and rmail: | |
213d9a4f | 63 | ;; |
0948761d KH |
64 | ;; M-l ffap-next, or ffap-gnus-next in gnus (l == "link") |
65 | ;; M-m ffap-menu, or ffap-gnus-menu in gnus (m == "menu") | |
213d9a4f | 66 | ;; |
87e2d039 RS |
67 | ;; If you do not like these bindings, modify the variable |
68 | ;; `ffap-bindings', or write your own. | |
213d9a4f | 69 | ;; |
87e2d039 RS |
70 | ;; If you use ange-ftp, browse-url, complete, efs, or w3, it is best |
71 | ;; to load or autoload them before ffap. If you use ff-paths, load it | |
72 | ;; afterwards. Try apropos {C-h a ffap RET} to get a list of the many | |
73 | ;; option variables. In particular, if ffap is slow, try these: | |
213d9a4f | 74 | ;; |
87e2d039 RS |
75 | ;; (setq ffap-alist nil) ; faster, dumber prompting |
76 | ;; (setq ffap-machine-p-known 'accept) ; no pinging | |
41d34bed | 77 | ;; (setq ffap-url-regexp nil) ; disable URL features in ffap |
c98ddbe5 | 78 | ;; (setq ffap-shell-prompt-regexp nil) ; disable shell prompt stripping |
213d9a4f | 79 | ;; |
3788c735 KH |
80 | ;; ffap uses `browse-url' (if found, else `w3-fetch') to fetch URL's. |
81 | ;; For a hairier `ffap-url-fetcher', try ffap-url.el (same ftp site). | |
87e2d039 | 82 | ;; Also, you can add `ffap-menu-rescan' to various hooks to fontify |
71296446 | 83 | ;; the file and URL references within a buffer. |
87e2d039 | 84 | |
0948761d KH |
85 | \f |
86 | ;;; Change Log: | |
87 | ;; | |
88 | ;; The History and Contributors moved to ffap.LOG (same ftp site), | |
89 | ;; which also has some old examples and commentary from ffap 1.5. | |
90 | ||
91 | \f | |
87e2d039 | 92 | ;;; Todo list: |
0948761d | 93 | ;; * use kpsewhich |
95a85681 | 94 | ;; * let "/dir/file#key" jump to key (tag or regexp) in /dir/file |
87e2d039 | 95 | ;; * find file of symbol if TAGS is loaded (like above) |
0948761d KH |
96 | ;; * break long menus into multiple panes (like imenu?) |
97 | ;; * notice node in "(dired)Virtual Dired" (quotes, parentheses, whitespace) | |
95a85681 | 98 | ;; * notice "machine.dom blah blah blah dir/file" (how?) |
0948761d | 99 | ;; * as w3 becomes standard, rewrite to rely more on its functions |
87e2d039 RS |
100 | ;; * regexp options for ffap-string-at-point, like font-lock (MCOOK) |
101 | ;; * v19: could replace `ffap-locate-file' with a quieter `locate-library' | |
0948761d KH |
102 | ;; * handle "$(VAR)" in Makefiles |
103 | ;; * use the font-lock machinery | |
213d9a4f RS |
104 | |
105 | \f | |
106 | ;;; Code: | |
107 | ||
4648ccdf | 108 | (define-obsolete-variable-alias 'ffap-version 'emacs-version "23.2") |
213d9a4f | 109 | |
41d34bed RS |
110 | (defgroup ffap nil |
111 | "Find file or URL at point." | |
359d3f49 GM |
112 | ;; Dead 2009/07/05. |
113 | ;; :link '(url-link :tag "URL" "ftp://ftp.mathcs.emory.edu/pub/mic/emacs/") | |
f5f727f8 DN |
114 | :group 'matching |
115 | :group 'convenience) | |
41d34bed | 116 | |
3788c735 KH |
117 | ;; The code is organized in pages, separated by formfeed characters. |
118 | ;; See the next two pages for standard customization ideas. | |
119 | ||
120 | \f | |
121 | ;;; User Variables: | |
41d34bed | 122 | |
a0d1aadf SM |
123 | (defun ffap-symbol-value (sym &optional default) |
124 | "Return value of symbol SYM, if bound, or DEFAULT otherwise." | |
125 | (if (boundp sym) (symbol-value sym) default)) | |
213d9a4f | 126 | |
c98ddbe5 RV |
127 | (defcustom ffap-shell-prompt-regexp |
128 | ;; This used to test for some shell prompts that don't have a space | |
129 | ;; after them. The common root shell prompt (#) is not listed since it | |
130 | ;; also doubles up as a valid URL character. | |
131 | "[$%><]*" | |
4454adab | 132 | "Paths matching this regexp are stripped off the shell prompt. |
c98ddbe5 RV |
133 | If nil, ffap doesn't do shell prompt stripping." |
134 | :type '(choice (const :tag "Disable" nil) | |
135 | (const :tag "Standard" "[$%><]*") | |
136 | regexp) | |
137 | :group 'ffap) | |
138 | ||
41d34bed | 139 | (defcustom ffap-ftp-regexp |
0948761d KH |
140 | ;; This used to test for ange-ftp or efs being present, but it should be |
141 | ;; harmless (and simpler) to give it this value unconditionally. | |
142 | "\\`/[^/:]+:" | |
9201cc28 | 143 | "File names matching this regexp are treated as remote ffap. |
95a85681 | 144 | If nil, ffap neither recognizes nor generates such names." |
41d34bed | 145 | :type '(choice (const :tag "Disable" nil) |
0948761d | 146 | (const :tag "Standard" "\\`/[^/:]+:") |
41d34bed RS |
147 | regexp) |
148 | :group 'ffap) | |
149 | ||
150 | (defcustom ffap-url-unwrap-local t | |
9201cc28 | 151 | "If non-nil, convert `file:' URL to local file name before prompting." |
41d34bed RS |
152 | :type 'boolean |
153 | :group 'ffap) | |
154 | ||
155 | (defcustom ffap-url-unwrap-remote t | |
9201cc28 | 156 | "If non-nil, convert `ftp:' URL to remote file name before prompting. |
41d34bed RS |
157 | This is ignored if `ffap-ftp-regexp' is nil." |
158 | :type 'boolean | |
159 | :group 'ffap) | |
160 | ||
0948761d | 161 | (defcustom ffap-ftp-default-user "anonymous" |
9201cc28 | 162 | "User name in ftp file names generated by `ffap-host-to-path'. |
0948761d KH |
163 | Note this name may be omitted if it equals the default |
164 | \(either `efs-default-user' or `ange-ftp-default-user'\)." | |
165 | :type 'string | |
41d34bed | 166 | :group 'ffap) |
213d9a4f | 167 | |
41d34bed | 168 | (defcustom ffap-rfs-regexp |
213d9a4f RS |
169 | ;; Remote file access built into file system? HP rfa or Andrew afs: |
170 | "\\`/\\(afs\\|net\\)/." | |
171 | ;; afs only: (and (file-exists-p "/afs") "\\`/afs/.") | |
9201cc28 | 172 | "Matching file names are treated as remote. Use nil to disable." |
41d34bed RS |
173 | :type 'regexp |
174 | :group 'ffap) | |
213d9a4f RS |
175 | |
176 | (defvar ffap-url-regexp | |
177 | ;; Could just use `url-nonrelative-link' of w3, if loaded. | |
178 | ;; This regexp is not exhaustive, it just matches common cases. | |
179 | (concat | |
180 | "\\`\\(" | |
181 | "news\\(post\\)?:\\|mailto:\\|file:" ; no host ok | |
182 | "\\|" | |
1d34daae | 183 | "\\(ftp\\|https?\\|telnet\\|gopher\\|www\\|wais\\)://" ; needs host |
213d9a4f RS |
184 | "\\)." ; require one more character |
185 | ) | |
4454adab | 186 | "Regexp matching URLs. Use nil to disable URL features in ffap.") |
213d9a4f | 187 | |
41d34bed | 188 | (defcustom ffap-foo-at-bar-prefix "mailto" |
9201cc28 | 189 | "Presumed URL prefix type of strings like \"<foo.9z@bar>\". |
41d34bed | 190 | Sensible values are nil, \"news\", or \"mailto\"." |
0948761d KH |
191 | :type '(choice (const "mailto") |
192 | (const "news") | |
193 | (const :tag "Disable" nil) | |
194 | ;; string -- possible, but not really useful | |
195 | ) | |
41d34bed | 196 | :group 'ffap) |
213d9a4f RS |
197 | |
198 | \f | |
0948761d | 199 | ;;; Peanut Gallery (More User Variables): |
87e2d039 | 200 | ;; |
213d9a4f RS |
201 | ;; Users of ffap occasionally suggest new features. If I consider |
202 | ;; those features interesting but not clear winners (a matter of | |
203 | ;; personal taste) I try to leave options to enable them. Read | |
87e2d039 RS |
204 | ;; through this section for features that you like, put an appropriate |
205 | ;; enabler in your .emacs file. | |
213d9a4f | 206 | |
c99310d5 | 207 | (defcustom ffap-dired-wildcards "[*?][^/]*\\'" |
9201cc28 | 208 | "A regexp matching filename wildcard characters, or nil. |
c99310d5 | 209 | |
87e2d039 | 210 | If `find-file-at-point' gets a filename matching this pattern, |
5b523a77 JL |
211 | and `ffap-pass-wildcards-to-dired' is nil, it passes it on to |
212 | `find-file' with non-nil WILDCARDS argument, which expands | |
213 | wildcards and visits multiple files. To visit a file whose name | |
214 | contains wildcard characters you can suppress wildcard expansion | |
215 | by setting `find-file-wildcards'. If `find-file-at-point' gets a | |
216 | filename matching this pattern and `ffap-pass-wildcards-to-dired' | |
217 | is non-nil, it passes it on to `dired'. | |
c99310d5 JL |
218 | |
219 | If `dired-at-point' gets a filename matching this pattern, | |
220 | it passes it on to `dired'." | |
0948761d KH |
221 | :type '(choice (const :tag "Disable" nil) |
222 | (const :tag "Enable" "[*?][^/]*\\'") | |
223 | ;; regexp -- probably not useful | |
224 | ) | |
41d34bed | 225 | :group 'ffap) |
213d9a4f | 226 | |
5b523a77 | 227 | (defcustom ffap-pass-wildcards-to-dired nil |
9201cc28 | 228 | "If non-nil, pass filenames matching `ffap-dired-wildcards' to dired." |
5b523a77 JL |
229 | :type 'boolean |
230 | :group 'ffap) | |
231 | ||
0948761d | 232 | (defcustom ffap-newfile-prompt nil |
87e2d039 RS |
233 | ;; Suggestion from RHOGEE, 11 Jul 1994. Disabled, I think this is |
234 | ;; better handled by `find-file-not-found-hooks'. | |
9201cc28 | 235 | "Whether `find-file-at-point' prompts about a nonexistent file." |
41d34bed RS |
236 | :type 'boolean |
237 | :group 'ffap) | |
213d9a4f | 238 | |
41d34bed | 239 | (defcustom ffap-require-prefix nil |
87e2d039 | 240 | ;; Suggestion from RHOGEE, 20 Oct 1994. |
9201cc28 | 241 | "If set, reverses the prefix argument to `find-file-at-point'. |
87e2d039 | 242 | This is nil so neophytes notice ffap. Experts may prefer to disable |
41d34bed RS |
243 | ffap most of the time." |
244 | :type 'boolean | |
245 | :group 'ffap) | |
246 | ||
247 | (defcustom ffap-file-finder 'find-file | |
9201cc28 | 248 | "The command called by `find-file-at-point' to find a file." |
41d34bed RS |
249 | :type 'function |
250 | :group 'ffap) | |
87e2d039 | 251 | (put 'ffap-file-finder 'risky-local-variable t) |
213d9a4f | 252 | |
c99310d5 | 253 | (defcustom ffap-directory-finder 'dired |
9201cc28 | 254 | "The command called by `dired-at-point' to find a directory." |
c99310d5 JL |
255 | :type 'function |
256 | :group 'ffap) | |
257 | (put 'ffap-directory-finder 'risky-local-variable t) | |
258 | ||
41d34bed | 259 | (defcustom ffap-url-fetcher |
3788c735 KH |
260 | (if (fboundp 'browse-url) |
261 | 'browse-url ; rely on browse-url-browser-function | |
262 | 'w3-fetch) | |
87e2d039 | 263 | ;; Remote control references: |
213d9a4f RS |
264 | ;; http://www.ncsa.uiuc.edu/SDG/Software/XMosaic/remote-control.html |
265 | ;; http://home.netscape.com/newsref/std/x-remote.html | |
9201cc28 | 266 | "A function of one argument, called by ffap to fetch an URL. |
3788c735 | 267 | Reasonable choices are `w3-fetch' or a `browse-url-*' function. |
ee79ced8 | 268 | For a fancy alternative, get `ffap-url.el'." |
0948761d | 269 | :type '(choice (const w3-fetch) |
3788c735 | 270 | (const browse-url) ; in recent versions of browse-url |
0948761d KH |
271 | (const browse-url-netscape) |
272 | (const browse-url-mosaic) | |
273 | function) | |
41d34bed | 274 | :group 'ffap) |
213d9a4f RS |
275 | (put 'ffap-url-fetcher 'risky-local-variable t) |
276 | ||
277 | \f | |
3788c735 KH |
278 | ;;; Compatibility: |
279 | ;; | |
516bf0ee RS |
280 | ;; This version of ffap supports only the Emacs it is distributed in. |
281 | ;; See the ftp site for a more general version. The following | |
282 | ;; functions are necessary "leftovers" from the more general version. | |
3788c735 | 283 | |
a0d1aadf | 284 | (defun ffap-mouse-event () ; current mouse event, or nil |
3788c735 KH |
285 | (and (listp last-nonmenu-event) last-nonmenu-event)) |
286 | (defun ffap-event-buffer (event) | |
287 | (window-buffer (car (event-start event)))) | |
0948761d KH |
288 | |
289 | \f | |
290 | ;;; Find Next Thing in buffer (`ffap-next'): | |
213d9a4f | 291 | ;; |
87e2d039 RS |
292 | ;; Original ffap-next-url (URL's only) from RPECK 30 Mar 1995. Since |
293 | ;; then, broke it up into ffap-next-guess (noninteractive) and | |
294 | ;; ffap-next (a command). It now work on files as well as url's. | |
213d9a4f | 295 | |
41d34bed | 296 | (defcustom ffap-next-regexp |
213d9a4f RS |
297 | ;; If you want ffap-next to find URL's only, try this: |
298 | ;; (and ffap-url-regexp (string-match "\\\\`" ffap-url-regexp) | |
299 | ;; (concat "\\<" (substring ffap-url-regexp 2)))) | |
300 | ;; | |
301 | ;; It pays to put a big fancy regexp here, since ffap-guesser is | |
302 | ;; much more time-consuming than regexp searching: | |
5362ba53 | 303 | "[/:.~[:alpha:]]/\\|@[[:alpha:]][-[:alnum:]]*\\." |
9201cc28 | 304 | "Regular expression governing movements of `ffap-next'." |
41d34bed RS |
305 | :type 'regexp |
306 | :group 'ffap) | |
213d9a4f | 307 | |
c9ae9869 RS |
308 | (defvar ffap-next-guess nil |
309 | "Last value returned by `ffap-next-guess'.") | |
310 | ||
311 | (defvar ffap-string-at-point-region '(1 1) | |
312 | "List (BEG END), last region returned by `ffap-string-at-point'.") | |
313 | ||
213d9a4f | 314 | (defun ffap-next-guess (&optional back lim) |
41d34bed | 315 | "Move point to next file or URL, and return it as a string. |
87e2d039 | 316 | If nothing is found, leave point at limit and return nil. |
213d9a4f RS |
317 | Optional BACK argument makes search backwards. |
318 | Optional LIM argument limits the search. | |
319 | Only considers strings that match `ffap-next-regexp'." | |
320 | (or lim (setq lim (if back (point-min) (point-max)))) | |
321 | (let (guess) | |
322 | (while (not (or guess (eq (point) lim))) | |
323 | (funcall (if back 're-search-backward 're-search-forward) | |
324 | ffap-next-regexp lim 'move) | |
325 | (setq guess (ffap-guesser))) | |
326 | ;; Go to end, so we do not get same guess twice: | |
327 | (goto-char (nth (if back 0 1) ffap-string-at-point-region)) | |
328 | (setq ffap-next-guess guess))) | |
329 | ||
330 | ;;;###autoload | |
331 | (defun ffap-next (&optional back wrap) | |
41d34bed | 332 | "Search buffer for next file or URL, and run ffap. |
213d9a4f RS |
333 | Optional argument BACK says to search backwards. |
334 | Optional argument WRAP says to try wrapping around if necessary. | |
335 | Interactively: use a single prefix to search backwards, | |
336 | double prefix to wrap forward, triple to wrap backwards. | |
87e2d039 | 337 | Actual search is done by `ffap-next-guess'." |
213d9a4f RS |
338 | (interactive |
339 | (cdr (assq (prefix-numeric-value current-prefix-arg) | |
340 | '((1) (4 t) (16 nil t) (64 t t))))) | |
341 | (let ((pt (point)) | |
342 | (guess (ffap-next-guess back))) | |
343 | ;; Try wraparound if necessary: | |
344 | (and (not guess) wrap | |
345 | (goto-char (if back (point-max) (point-min))) | |
346 | (setq guess (ffap-next-guess back pt))) | |
347 | (if guess | |
348 | (progn | |
349 | (sit-for 0) ; display point movement | |
350 | (find-file-at-point (ffap-prompter guess))) | |
351 | (goto-char pt) ; restore point | |
41d34bed | 352 | (message "No %sfiles or URL's found" |
213d9a4f RS |
353 | (if wrap "" "more "))))) |
354 | ||
355 | (defun ffap-next-url (&optional back wrap) | |
87e2d039 | 356 | "Like `ffap-next', but search with `ffap-url-regexp'." |
213d9a4f RS |
357 | (interactive) |
358 | (let ((ffap-next-regexp ffap-url-regexp)) | |
32226619 | 359 | (if (called-interactively-p 'interactive) |
213d9a4f RS |
360 | (call-interactively 'ffap-next) |
361 | (ffap-next back wrap)))) | |
362 | ||
363 | \f | |
0948761d | 364 | ;;; Machines (`ffap-machine-p'): |
213d9a4f RS |
365 | |
366 | ;; I cannot decide a "best" strategy here, so these are variables. In | |
367 | ;; particular, if `Pinging...' is broken or takes too long on your | |
368 | ;; machine, try setting these all to accept or reject. | |
41d34bed | 369 | (defcustom ffap-machine-p-local 'reject ; this happens often |
9201cc28 | 370 | "What `ffap-machine-p' does with hostnames that have no domain. |
88b5c6b3 | 371 | Value should be a symbol, one of `ping', `accept', and `reject'." |
41d34bed RS |
372 | :type '(choice (const ping) |
373 | (const accept) | |
374 | (const reject)) | |
375 | :group 'ffap) | |
ee79ced8 | 376 | (defcustom ffap-machine-p-known 'ping ; `accept' for higher speed |
9201cc28 | 377 | "What `ffap-machine-p' does with hostnames that have a known domain. |
ee79ced8 KH |
378 | Value should be a symbol, one of `ping', `accept', and `reject'. |
379 | See `mail-extr.el' for the known domains." | |
41d34bed RS |
380 | :type '(choice (const ping) |
381 | (const accept) | |
382 | (const reject)) | |
383 | :group 'ffap) | |
384 | (defcustom ffap-machine-p-unknown 'reject | |
9201cc28 | 385 | "What `ffap-machine-p' does with hostnames that have an unknown domain. |
ee79ced8 KH |
386 | Value should be a symbol, one of `ping', `accept', and `reject'. |
387 | See `mail-extr.el' for the known domains." | |
41d34bed RS |
388 | :type '(choice (const ping) |
389 | (const accept) | |
390 | (const reject)) | |
391 | :group 'ffap) | |
87e2d039 RS |
392 | |
393 | (defun ffap-what-domain (domain) | |
394 | ;; Like what-domain in mail-extr.el, returns string or nil. | |
395 | (require 'mail-extr) | |
a0d1aadf SM |
396 | (let ((ob (or (ffap-symbol-value 'mail-extr-all-top-level-domains) |
397 | (ffap-symbol-value 'all-top-level-domains)))) ; XEmacs | |
3788c735 | 398 | (and ob (get (intern-soft (downcase domain) ob) 'domain-name)))) |
87e2d039 RS |
399 | |
400 | (defun ffap-machine-p (host &optional service quiet strategy) | |
401 | "Decide whether HOST is the name of a real, reachable machine. | |
402 | Depending on the domain (none, known, or unknown), follow the strategy | |
403 | named by the variable `ffap-machine-p-local', `ffap-machine-p-known', | |
404 | or `ffap-machine-p-unknown'. Pinging uses `open-network-stream'. | |
405 | Optional SERVICE specifies the port used \(default \"discard\"\). | |
213d9a4f | 406 | Optional QUIET flag suppresses the \"Pinging...\" message. |
87e2d039 | 407 | Optional STRATEGY overrides the three variables above. |
213d9a4f | 408 | Returned values: |
87e2d039 RS |
409 | t means that HOST answered. |
410 | 'accept means the relevant variable told us to accept. | |
411 | \"mesg\" means HOST exists, but does not respond for some reason." | |
412 | ;; Try some (Emory local): | |
413 | ;; (ffap-machine-p "ftp" nil nil 'ping) | |
414 | ;; (ffap-machine-p "nonesuch" nil nil 'ping) | |
415 | ;; (ffap-machine-p "ftp.mathcs.emory.edu" nil nil 'ping) | |
416 | ;; (ffap-machine-p "mathcs" 5678 nil 'ping) | |
417 | ;; (ffap-machine-p "foo.bonk" nil nil 'ping) | |
418 | ;; (ffap-machine-p "foo.bonk.com" nil nil 'ping) | |
9b9a4122 | 419 | (if (or (string-match "[^-[:alnum:].]" host) ; Invalid chars (?) |
87e2d039 | 420 | (not (string-match "[^0-9]" host))) ; 1: a number? 2: quick reject |
213d9a4f RS |
421 | nil |
422 | (let* ((domain | |
423 | (and (string-match "\\.[^.]*$" host) | |
424 | (downcase (substring host (1+ (match-beginning 0)))))) | |
87e2d039 RS |
425 | (what-domain (if domain (ffap-what-domain domain) "Local"))) |
426 | (or strategy | |
427 | (setq strategy | |
428 | (cond ((not domain) ffap-machine-p-local) | |
429 | ((not what-domain) ffap-machine-p-unknown) | |
430 | (t ffap-machine-p-known)))) | |
213d9a4f RS |
431 | (cond |
432 | ((eq strategy 'accept) 'accept) | |
433 | ((eq strategy 'reject) nil) | |
e75e894b | 434 | ((not (fboundp 'open-network-stream)) nil) |
213d9a4f RS |
435 | ;; assume (eq strategy 'ping) |
436 | (t | |
437 | (or quiet | |
87e2d039 RS |
438 | (if (stringp what-domain) |
439 | (message "Pinging %s (%s)..." host what-domain) | |
213d9a4f RS |
440 | (message "Pinging %s ..." host))) |
441 | (condition-case error | |
442 | (progn | |
443 | (delete-process | |
444 | (open-network-stream | |
445 | "ffap-machine-p" nil host (or service "discard"))) | |
446 | t) | |
447 | (error | |
448 | (let ((mesg (car (cdr error)))) | |
449 | (cond | |
450 | ;; v18: | |
451 | ((string-match "^Unknown host" mesg) nil) | |
452 | ((string-match "not responding$" mesg) mesg) | |
453 | ;; v19: | |
454 | ;; (file-error "connection failed" "permission denied" | |
455 | ;; "nonesuch" "ffap-machine-p") | |
456 | ;; (file-error "connection failed" "host is unreachable" | |
457 | ;; "gopher.house.gov" "ffap-machine-p") | |
458 | ;; (file-error "connection failed" "address already in use" | |
459 | ;; "ftp.uu.net" "ffap-machine-p") | |
460 | ((equal mesg "connection failed") | |
461 | (if (equal (nth 2 error) "permission denied") | |
462 | nil ; host does not exist | |
87e2d039 | 463 | ;; Other errors mean the host exists: |
213d9a4f RS |
464 | (nth 2 error))) |
465 | ;; Could be "Unknown service": | |
466 | (t (signal (car error) (cdr error)))))))))))) | |
467 | ||
0948761d KH |
468 | \f |
469 | ;;; Possibly Remote Resources: | |
470 | ||
95a85681 | 471 | (defun ffap-replace-file-component (fullname name) |
0948761d KH |
472 | "In remote FULLNAME, replace path with NAME. May return nil." |
473 | ;; Use ange-ftp or efs if loaded, but do not load them otherwise. | |
474 | (let (found) | |
dabec3c9 | 475 | (mapc |
0948761d KH |
476 | (function (lambda (sym) (and (fboundp sym) (setq found sym)))) |
477 | '( | |
478 | efs-replace-path-component | |
479 | ange-ftp-replace-path-component | |
480 | ange-ftp-replace-name-component | |
481 | )) | |
482 | (and found | |
95a85681 | 483 | (fset 'ffap-replace-file-component found) |
0948761d | 484 | (funcall found fullname name)))) |
95a85681 | 485 | ;; (ffap-replace-file-component "/who@foo.com:/whatever" "/new") |
0948761d | 486 | |
3788c735 | 487 | (defun ffap-file-suffix (file) |
ee79ced8 | 488 | "Return trailing `.foo' suffix of FILE, or nil if none." |
3788c735 KH |
489 | (let ((pos (string-match "\\.[^./]*\\'" file))) |
490 | (and pos (substring file pos nil)))) | |
491 | ||
492 | (defvar ffap-compression-suffixes '(".gz" ".Z") ; .z is mostly dead | |
493 | "List of suffixes tried by `ffap-file-exists-string'.") | |
494 | ||
495 | (defun ffap-file-exists-string (file &optional nomodify) | |
496 | ;; Early jka-compr versions modified file-exists-p to return the | |
497 | ;; filename, maybe modified by adding a suffix like ".gz". That | |
498 | ;; broke the interface of file-exists-p, so it was later dropped. | |
499 | ;; Here we document and simulate the old behavior. | |
ee79ced8 | 500 | "Return FILE (maybe modified) if the file exists, else nil. |
3788c735 KH |
501 | When using jka-compr (a.k.a. `auto-compression-mode'), the returned |
502 | name may have a suffix added from `ffap-compression-suffixes'. | |
503 | The optional NOMODIFY argument suppresses the extra search." | |
504 | (cond | |
505 | ((not file) nil) ; quietly reject nil | |
506 | ((file-exists-p file) file) ; try unmodified first | |
507 | ;; three reasons to suppress search: | |
508 | (nomodify nil) | |
509 | ((not (rassq 'jka-compr-handler file-name-handler-alist)) nil) | |
510 | ((member (ffap-file-suffix file) ffap-compression-suffixes) nil) | |
511 | (t ; ok, do the search | |
512 | (let ((list ffap-compression-suffixes) try ret) | |
513 | (while list | |
514 | (if (file-exists-p (setq try (concat file (car list)))) | |
515 | (setq ret try list nil) | |
516 | (setq list (cdr list)))) | |
517 | ret)))) | |
0948761d | 518 | |
213d9a4f | 519 | (defun ffap-file-remote-p (filename) |
ee79ced8 | 520 | "If FILENAME looks remote, return it (maybe slightly improved)." |
213d9a4f | 521 | ;; (ffap-file-remote-p "/user@foo.bar.com:/pub") |
95a85681 | 522 | ;; (ffap-file-remote-p "/cssun.mathcs.emory.edu://dir") |
87e2d039 | 523 | ;; (ffap-file-remote-p "/ffap.el:80") |
213d9a4f RS |
524 | (or (and ffap-ftp-regexp |
525 | (string-match ffap-ftp-regexp filename) | |
4c36be58 | 526 | ;; Convert "/host.com://dir" to "/host:/dir", to handle a dying |
95a85681 | 527 | ;; practice of advertising ftp files as "host.dom://filename". |
213d9a4f | 528 | (if (string-match "//" filename) |
87e2d039 RS |
529 | ;; (replace-match "/" nil nil filename) |
530 | (concat (substring filename 0 (1+ (match-beginning 0))) | |
531 | (substring filename (match-end 0))) | |
213d9a4f RS |
532 | filename)) |
533 | (and ffap-rfs-regexp | |
534 | (string-match ffap-rfs-regexp filename) | |
535 | filename))) | |
536 | ||
a0d1aadf | 537 | (defun ffap-machine-at-point () |
87e2d039 RS |
538 | "Return machine name at point if it exists, or nil." |
539 | (let ((mach (ffap-string-at-point 'machine))) | |
213d9a4f RS |
540 | (and (ffap-machine-p mach) mach))) |
541 | ||
95a85681 | 542 | (defsubst ffap-host-to-filename (host) |
0948761d | 543 | "Convert HOST to something like \"/USER@HOST:\" or \"/HOST:\". |
87e2d039 | 544 | Looks at `ffap-ftp-default-user', returns \"\" for \"localhost\"." |
0948761d KH |
545 | (if (equal host "localhost") |
546 | "" | |
547 | (let ((user ffap-ftp-default-user)) | |
548 | ;; Avoid including the user if it is same as default: | |
a0d1aadf SM |
549 | (if (or (equal user (ffap-symbol-value 'ange-ftp-default-user)) |
550 | (equal user (ffap-symbol-value 'efs-default-user))) | |
0948761d KH |
551 | (setq user nil)) |
552 | (concat "/" user (and user "@") host ":")))) | |
87e2d039 | 553 | |
213d9a4f | 554 | (defun ffap-fixup-machine (mach) |
95a85681 | 555 | ;; Convert a hostname into an url, an ftp file name, or nil. |
213d9a4f RS |
556 | (cond |
557 | ((not (and ffap-url-regexp (stringp mach))) nil) | |
87e2d039 | 558 | ;; gopher.well.com |
213d9a4f RS |
559 | ((string-match "\\`gopher[-.]" mach) ; or "info"? |
560 | (concat "gopher://" mach "/")) | |
87e2d039 | 561 | ;; www.ncsa.uiuc.edu |
213d9a4f RS |
562 | ((and (string-match "\\`w\\(ww\\|eb\\)[-.]" mach)) |
563 | (concat "http://" mach "/")) | |
564 | ;; More cases? Maybe "telnet:" for archie? | |
95a85681 | 565 | (ffap-ftp-regexp (ffap-host-to-filename mach)) |
213d9a4f RS |
566 | )) |
567 | ||
5362ba53 | 568 | (defvar ffap-newsgroup-regexp "^[[:lower:]]+\\.[-+[:lower:]_0-9.]+$" |
c9ae9869 RS |
569 | "Strings not matching this fail `ffap-newsgroup-p'.") |
570 | (defvar ffap-newsgroup-heads ; entirely inadequate | |
571 | '("alt" "comp" "gnu" "misc" "news" "sci" "soc" "talk") | |
572 | "Used by `ffap-newsgroup-p' if gnus is not running.") | |
573 | ||
213d9a4f RS |
574 | (defun ffap-newsgroup-p (string) |
575 | "Return STRING if it looks like a newsgroup name, else nil." | |
576 | (and | |
577 | (string-match ffap-newsgroup-regexp string) | |
578 | (let ((htbs '(gnus-active-hashtb gnus-newsrc-hashtb gnus-killed-hashtb)) | |
579 | (heads ffap-newsgroup-heads) | |
580 | htb ret) | |
581 | (while htbs | |
582 | (setq htb (car htbs) htbs (cdr htbs)) | |
583 | (condition-case nil | |
584 | (progn | |
585 | ;; errs: htb symbol may be unbound, or not a hash-table. | |
586 | ;; gnus-gethash is just a macro for intern-soft. | |
001f5583 RS |
587 | (and (symbol-value htb) |
588 | (intern-soft string (symbol-value htb)) | |
213d9a4f | 589 | (setq ret string htbs nil)) |
87e2d039 | 590 | ;; If we made it this far, gnus is running, so ignore "heads": |
213d9a4f RS |
591 | (setq heads nil)) |
592 | (error nil))) | |
593 | (or ret (not heads) | |
5362ba53 | 594 | (let ((head (string-match "\\`\\([[:lower:]]+\\)\\." string))) |
213d9a4f RS |
595 | (and head (setq head (substring string 0 (match-end 1))) |
596 | (member head heads) | |
597 | (setq ret string)))) | |
87e2d039 | 598 | ;; Is there ever a need to modify string as a newsgroup name? |
213d9a4f | 599 | ret))) |
213d9a4f | 600 | |
87e2d039 | 601 | (defsubst ffap-url-p (string) |
4454adab | 602 | "If STRING looks like an URL, return it (maybe improved), else nil." |
213d9a4f RS |
603 | (let ((case-fold-search t)) |
604 | (and ffap-url-regexp (string-match ffap-url-regexp string) | |
605 | ;; I lied, no improvement: | |
606 | string))) | |
607 | ||
87e2d039 RS |
608 | ;; Broke these out of ffap-fixup-url, for use of ffap-url package. |
609 | (defsubst ffap-url-unwrap-local (url) | |
610 | "Return URL as a local file, or nil. Ignores `ffap-url-regexp'." | |
213d9a4f RS |
611 | (and (string-match "\\`\\(file\\|ftp\\):/?\\([^/]\\|\\'\\)" url) |
612 | (substring url (1+ (match-end 1))))) | |
87e2d039 RS |
613 | (defsubst ffap-url-unwrap-remote (url) |
614 | "Return URL as a remote file, or nil. Ignores `ffap-url-regexp'." | |
213d9a4f RS |
615 | (and (string-match "\\`\\(ftp\\|file\\)://\\([^:/]+\\):?\\(/.*\\)" url) |
616 | (concat | |
95a85681 | 617 | (ffap-host-to-filename (substring url (match-beginning 2) (match-end 2))) |
213d9a4f | 618 | (substring url (match-beginning 3) (match-end 3))))) |
87e2d039 | 619 | ;; Test: (ffap-url-unwrap-remote "ftp://foo.com/bar.boz") |
213d9a4f RS |
620 | |
621 | (defun ffap-fixup-url (url) | |
87e2d039 | 622 | "Clean up URL and return it, maybe as a file name." |
213d9a4f RS |
623 | (cond |
624 | ((not (stringp url)) nil) | |
625 | ((and ffap-url-unwrap-local (ffap-url-unwrap-local url))) | |
626 | ((and ffap-url-unwrap-remote ffap-ftp-regexp | |
627 | (ffap-url-unwrap-remote url))) | |
4dd7f375 GM |
628 | ;; All this seems to do is remove any trailing "#anchor" part (Bug#898). |
629 | ;;; ((fboundp 'url-normalize-url) ; may autoload url (part of w3) | |
630 | ;;; (url-normalize-url url)) | |
3788c735 | 631 | (url))) |
213d9a4f RS |
632 | |
633 | \f | |
95a85681 | 634 | ;;; File Name Handling: |
213d9a4f | 635 | ;; |
0948761d | 636 | ;; The upcoming ffap-alist actions need various utilities to prepare |
95a85681 | 637 | ;; and search directories. Too many features here. |
0948761d KH |
638 | |
639 | ;; (defun ffap-last (l) (while (cdr l) (setq l (cdr l))) l) | |
640 | ;; (defun ffap-splice (func inlist) | |
641 | ;; "Equivalent to (apply 'nconc (mapcar FUNC INLIST)), but less consing." | |
642 | ;; (let* ((head (cons 17 nil)) (last head)) | |
643 | ;; (while inlist | |
644 | ;; (setcdr last (funcall func (car inlist))) | |
645 | ;; (setq last (ffap-last last) inlist (cdr inlist))) | |
646 | ;; (cdr head))) | |
213d9a4f RS |
647 | |
648 | (defun ffap-list-env (env &optional empty) | |
0948761d KH |
649 | "Return a list of strings parsed from environment variable ENV. |
650 | Optional EMPTY is the default list if \(getenv ENV\) is undefined, and | |
651 | also is substituted for the first empty-string component, if there is one. | |
652 | Uses `path-separator' to separate the path into substrings." | |
653 | ;; We cannot use parse-colon-path (files.el), since it kills | |
654 | ;; "//" entries using file-name-as-directory. | |
655 | ;; Similar: dired-split, TeX-split-string, and RHOGEE's psg-list-env | |
656 | ;; in ff-paths and bib-cite. The EMPTY arg may help mimic kpathsea. | |
213d9a4f RS |
657 | (if (or empty (getenv env)) ; should return something |
658 | (let ((start 0) match dir ret) | |
87e2d039 | 659 | (setq env (concat (getenv env) path-separator)) |
8c1001f6 | 660 | (while (setq match (string-match path-separator env start)) |
213d9a4f RS |
661 | (setq dir (substring env start match) start (1+ match)) |
662 | ;;(and (file-directory-p dir) (not (member dir ret)) ...) | |
663 | (setq ret (cons dir ret))) | |
664 | (setq ret (nreverse ret)) | |
665 | (and empty (setq match (member "" ret)) | |
0948761d | 666 | (progn ; allow string or list here |
213d9a4f RS |
667 | (setcdr match (append (cdr-safe empty) (cdr match))) |
668 | (setcar match (or (car-safe empty) empty)))) | |
669 | ret))) | |
670 | ||
671 | (defun ffap-reduce-path (path) | |
87e2d039 | 672 | "Remove duplicates and non-directories from PATH list." |
213d9a4f RS |
673 | (let (ret tem) |
674 | (while path | |
675 | (setq tem path path (cdr path)) | |
87e2d039 | 676 | (if (equal (car tem) ".") (setcar tem "")) |
213d9a4f RS |
677 | (or (member (car tem) ret) |
678 | (not (file-directory-p (car tem))) | |
679 | (progn (setcdr tem ret) (setq ret tem)))) | |
680 | (nreverse ret))) | |
681 | ||
0948761d | 682 | (defun ffap-all-subdirs (dir &optional depth) |
4454adab | 683 | "Return list of all subdirectories under DIR, starting with itself. |
0948761d KH |
684 | Directories beginning with \".\" are ignored, and directory symlinks |
685 | are listed but never searched (to avoid loops). | |
686 | Optional DEPTH limits search depth." | |
687 | (and (file-exists-p dir) | |
688 | (ffap-all-subdirs-loop (expand-file-name dir) (or depth -1)))) | |
689 | ||
690 | (defun ffap-all-subdirs-loop (dir depth) ; internal | |
691 | (setq depth (1- depth)) | |
692 | (cons dir | |
693 | (and (not (eq depth -1)) | |
694 | (apply 'nconc | |
695 | (mapcar | |
696 | (function | |
697 | (lambda (d) | |
698 | (cond | |
699 | ((not (file-directory-p d)) nil) | |
700 | ((file-symlink-p d) (list d)) | |
701 | (t (ffap-all-subdirs-loop d depth))))) | |
702 | (directory-files dir t "\\`[^.]") | |
703 | ))))) | |
704 | ||
705 | (defvar ffap-kpathsea-depth 1 | |
706 | "Bound on depth of subdirectory search in `ffap-kpathsea-expand-path'. | |
707 | Set to 0 to avoid all searching, or nil for no limit.") | |
708 | ||
709 | (defun ffap-kpathsea-expand-path (path) | |
710 | "Replace each \"//\"-suffixed dir in PATH by a list of its subdirs. | |
711 | The subdirs begin with the original directory, and the depth of the | |
712 | search is bounded by `ffap-kpathsea-depth'. This is intended to mimic | |
713 | kpathsea, a library used by some versions of TeX." | |
714 | (apply 'nconc | |
715 | (mapcar | |
716 | (function | |
717 | (lambda (dir) | |
718 | (if (string-match "[^/]//\\'" dir) | |
719 | (ffap-all-subdirs (substring dir 0 -2) ffap-kpathsea-depth) | |
720 | (list dir)))) | |
721 | path))) | |
722 | ||
a0d1aadf | 723 | (defun ffap-locate-file (file nosuffix path) |
516bf0ee | 724 | ;; The current version of locate-library could almost replace this, |
0f76d837 | 725 | ;; except it does not let us override the suffix list. The |
3788c735 | 726 | ;; compression-suffixes search moved to ffap-file-exists-string. |
a0d1aadf SM |
727 | "A generic path-searching function. |
728 | Returns the name of file in PATH, or nil. | |
0948761d | 729 | Optional NOSUFFIX, if nil or t, is like the fourth argument |
a0d1aadf | 730 | for `load': whether to try the suffixes (\".elc\" \".el\" \"\"). |
0948761d | 731 | If a nonempty list, it is a list of suffixes to try instead. |
a0d1aadf | 732 | PATH is a list of directories. |
3788c735 | 733 | |
a0d1aadf | 734 | This uses `ffap-file-exists-string', which may try adding suffixes from |
3788c735 | 735 | `ffap-compression-suffixes'." |
0948761d KH |
736 | (if (file-name-absolute-p file) |
737 | (setq path (list (file-name-directory file)) | |
738 | file (file-name-nondirectory file))) | |
a0d1aadf SM |
739 | (let ((dir-ok (equal "" (file-name-nondirectory file))) |
740 | (suffixes-to-try | |
0948761d KH |
741 | (cond |
742 | ((consp nosuffix) nosuffix) | |
743 | (nosuffix '("")) | |
3788c735 KH |
744 | (t '(".elc" ".el" "")))) |
745 | suffixes try found) | |
746 | (while path | |
747 | (setq suffixes suffixes-to-try) | |
748 | (while suffixes | |
749 | (setq try (ffap-file-exists-string | |
750 | (expand-file-name | |
751 | (concat file (car suffixes)) (car path)))) | |
752 | (if (and try (or dir-ok (not (file-directory-p try)))) | |
753 | (setq found try suffixes nil path nil) | |
754 | (setq suffixes (cdr suffixes)))) | |
755 | (setq path (cdr path))) | |
756 | found)) | |
0948761d KH |
757 | |
758 | \f | |
759 | ;;; Action List (`ffap-alist'): | |
760 | ;; | |
761 | ;; These search actions depend on the major-mode or regexps matching | |
762 | ;; the current name. The little functions and their variables are | |
763 | ;; deferred to the next section, at some loss of "code locality". A | |
764 | ;; good example of featuritis. Trim this list for speed. | |
213d9a4f | 765 | |
213d9a4f | 766 | (defvar ffap-alist |
c9ae9869 | 767 | '( |
0948761d KH |
768 | ("" . ffap-completable) ; completion, slow on some systems |
769 | ("\\.info\\'" . ffap-info) ; gzip.info | |
770 | ("\\`info/" . ffap-info-2) ; info/emacs | |
5362ba53 | 771 | ("\\`[-[:lower:]]+\\'" . ffap-info-3) ; (emacs)Top [only in the parentheses] |
0948761d KH |
772 | ("\\.elc?\\'" . ffap-el) ; simple.el, simple.elc |
773 | (emacs-lisp-mode . ffap-el-mode) ; rmail, gnus, simple, custom | |
3788c735 | 774 | ;; (lisp-interaction-mode . ffap-el-mode) ; maybe |
0948761d KH |
775 | (finder-mode . ffap-el-mode) ; type {C-h p} and try it |
776 | (help-mode . ffap-el-mode) ; maybe useful | |
777 | (c++-mode . ffap-c-mode) ; search ffap-c-path | |
778 | (cc-mode . ffap-c-mode) ; same | |
779 | ("\\.\\([chCH]\\|cc\\|hh\\)\\'" . ffap-c-mode) ; stdio.h | |
780 | (fortran-mode . ffap-fortran-mode) ; FORTRAN requested by MDB | |
781 | ("\\.[fF]\\'" . ffap-fortran-mode) | |
782 | (tex-mode . ffap-tex-mode) ; search ffap-tex-path | |
783 | (latex-mode . ffap-latex-mode) ; similar | |
c9ae9869 | 784 | ("\\.\\(tex\\|sty\\|doc\\|cls\\)\\'" . ffap-tex) |
0948761d KH |
785 | ("\\.bib\\'" . ffap-bib) ; search ffap-bib-path |
786 | ("\\`\\." . ffap-home) ; .emacs, .bashrc, .profile | |
787 | ("\\`~/" . ffap-lcd) ; |~/misc/ffap.el.Z| | |
a0d1aadf | 788 | ;; This used to have a blank, but ffap-string-at-point doesn't |
d4f7fdc6 GM |
789 | ;; handle blanks. |
790 | ;; http://lists.gnu.org/archive/html/emacs-devel/2008-01/msg01058.html | |
a0d1aadf | 791 | ("\\`[Rr][Ff][Cc][-#]?\\([0-9]+\\)" ; no $ |
0948761d KH |
792 | . ffap-rfc) ; "100% RFC2100 compliant" |
793 | (dired-mode . ffap-dired) ; maybe in a subdirectory | |
794 | ) | |
87e2d039 | 795 | "Alist of \(KEY . FUNCTION\) pairs parsed by `ffap-file-at-point'. |
4454adab | 796 | If string NAME at point (maybe \"\") is not a file or URL, these pairs |
87e2d039 RS |
797 | specify actions to try creating such a string. A pair matches if either |
798 | KEY is a symbol, and it equals `major-mode', or | |
4454adab | 799 | KEY is a string, it should match NAME as a regexp. |
87e2d039 | 800 | On a match, \(FUNCTION NAME\) is called and should return a file, an |
4454adab | 801 | URL, or nil. If nil, search the alist for further matches.") |
87e2d039 | 802 | |
213d9a4f | 803 | (put 'ffap-alist 'risky-local-variable t) |
0948761d | 804 | |
3788c735 KH |
805 | ;; Example `ffap-alist' modifications: |
806 | ;; | |
807 | ;; (setq ffap-alist ; remove a feature in `ffap-alist' | |
808 | ;; (delete (assoc 'c-mode ffap-alist) ffap-alist)) | |
809 | ;; | |
810 | ;; (setq ffap-alist ; add something to `ffap-alist' | |
811 | ;; (cons | |
812 | ;; (cons "^YSN[0-9]+$" | |
813 | ;; (defun ffap-ysn (name) | |
814 | ;; (concat | |
815 | ;; "http://www.physics.uiuc.edu/" | |
816 | ;; "ysn/httpd/htdocs/ysnarchive/issuefiles/" | |
817 | ;; (substring name 3) ".html"))) | |
818 | ;; ffap-alist)) | |
819 | ||
c9ae9869 | 820 | \f |
0948761d KH |
821 | ;;; Action Definitions: |
822 | ;; | |
823 | ;; Define various default members of `ffap-alist'. | |
824 | ||
825 | (defun ffap-completable (name) | |
826 | (let* ((dir (or (file-name-directory name) default-directory)) | |
827 | (cmp (file-name-completion (file-name-nondirectory name) dir))) | |
828 | (and cmp (concat dir cmp)))) | |
829 | ||
830 | (defun ffap-home (name) (ffap-locate-file name t '("~"))) | |
c9ae9869 RS |
831 | |
832 | (defun ffap-info (name) | |
0948761d | 833 | (ffap-locate-file |
c9ae9869 | 834 | name '("" ".info") |
a0d1aadf SM |
835 | (or (ffap-symbol-value 'Info-directory-list) |
836 | (ffap-symbol-value 'Info-default-directory-list) | |
0948761d | 837 | ))) |
c9ae9869 RS |
838 | |
839 | (defun ffap-info-2 (name) (ffap-info (substring name 5))) | |
840 | ||
c9ae9869 | 841 | (defun ffap-info-3 (name) |
0948761d | 842 | ;; This ignores the node! "(emacs)Top" same as "(emacs)Intro" |
c9ae9869 RS |
843 | (and (equal (ffap-string-around) "()") (ffap-info name))) |
844 | ||
a0d1aadf | 845 | (defun ffap-el (name) (ffap-locate-file name t load-path)) |
c9ae9869 RS |
846 | |
847 | (defun ffap-el-mode (name) | |
0948761d KH |
848 | ;; If name == "foo.el" we will skip it, since ffap-el already |
849 | ;; searched for it once. (This assumes the default ffap-alist.) | |
c9ae9869 | 850 | (and (not (string-match "\\.el\\'" name)) |
a0d1aadf | 851 | (ffap-locate-file name '(".el") load-path))) |
0948761d KH |
852 | |
853 | (defvar ffap-c-path | |
854 | ;; Need smarter defaults here! Suggestions welcome. | |
855 | '("/usr/include" "/usr/local/include")) | |
856 | (defun ffap-c-mode (name) | |
857 | (ffap-locate-file name t ffap-c-path)) | |
858 | ||
859 | (defvar ffap-fortran-path '("../include" "/usr/include")) | |
860 | ||
861 | (defun ffap-fortran-mode (name) | |
862 | (ffap-locate-file name t ffap-fortran-path)) | |
c9ae9869 | 863 | |
c9ae9869 RS |
864 | (defvar ffap-tex-path |
865 | t ; delayed initialization | |
4454adab | 866 | "Path where `ffap-tex-mode' looks for TeX files. |
c9ae9869 | 867 | If t, `ffap-tex-init' will initialize this when needed.") |
213d9a4f | 868 | |
a0d1aadf | 869 | (defun ffap-tex-init () |
c9ae9869 RS |
870 | ;; Compute ffap-tex-path if it is now t. |
871 | (and (eq t ffap-tex-path) | |
0948761d | 872 | ;; this may be slow, so say something |
c9ae9869 RS |
873 | (message "Initializing ffap-tex-path ...") |
874 | (setq ffap-tex-path | |
875 | (ffap-reduce-path | |
0948761d KH |
876 | (cons |
877 | "." | |
878 | (ffap-kpathsea-expand-path | |
879 | (append | |
880 | (ffap-list-env "TEXINPUTS") | |
881 | ;; (ffap-list-env "BIBINPUTS") | |
a0d1aadf SM |
882 | (ffap-symbol-value |
883 | 'TeX-macro-global ; AUCTeX | |
0948761d KH |
884 | '("/usr/local/lib/tex/macros" |
885 | "/usr/local/lib/tex/inputs"))))))))) | |
c9ae9869 RS |
886 | |
887 | (defun ffap-tex-mode (name) | |
888 | (ffap-tex-init) | |
0948761d | 889 | (ffap-locate-file name '(".tex" "") ffap-tex-path)) |
c9ae9869 RS |
890 | |
891 | (defun ffap-latex-mode (name) | |
892 | (ffap-tex-init) | |
0948761d KH |
893 | ;; only rare need for "" |
894 | (ffap-locate-file name '(".cls" ".sty" ".tex" "") ffap-tex-path)) | |
c9ae9869 RS |
895 | |
896 | (defun ffap-tex (name) | |
897 | (ffap-tex-init) | |
0948761d KH |
898 | (ffap-locate-file name t ffap-tex-path)) |
899 | ||
900 | (defvar ffap-bib-path | |
901 | (ffap-list-env "BIBINPUTS" | |
902 | (ffap-reduce-path | |
903 | '( | |
904 | ;; a few wild guesses, need better | |
905 | "/usr/local/lib/tex/macros/bib" ; Solaris? | |
906 | "/usr/lib/texmf/bibtex/bib" ; Linux? | |
907 | )))) | |
c9ae9869 RS |
908 | |
909 | (defun ffap-bib (name) | |
0948761d | 910 | (ffap-locate-file name t ffap-bib-path)) |
c9ae9869 RS |
911 | |
912 | (defun ffap-dired (name) | |
984ddcbc | 913 | (let ((pt (point)) try) |
c9ae9869 RS |
914 | (save-excursion |
915 | (and (progn | |
916 | (beginning-of-line) | |
917 | (looking-at " *[-d]r[-w][-x][-r][-w][-x][-r][-w][-x] ")) | |
918 | (re-search-backward "^ *$" nil t) | |
919 | (re-search-forward "^ *\\([^ \t\n:]*\\):\n *total " pt t) | |
920 | (file-exists-p | |
921 | (setq try | |
922 | (expand-file-name | |
923 | name | |
924 | (buffer-substring | |
925 | (match-beginning 1) (match-end 1))))) | |
926 | try)))) | |
927 | ||
928 | ;; Maybe a "Lisp Code Directory" reference: | |
929 | (defun ffap-lcd (name) | |
a0d1aadf | 930 | ;; FIXME: Is this still in use? |
c9ae9869 RS |
931 | (and |
932 | (or | |
933 | ;; lisp-dir-apropos output buffer: | |
934 | (string-match "Lisp Code Dir" (buffer-name)) | |
935 | ;; Inside an LCD entry like |~/misc/ffap.el.Z|, | |
936 | ;; or maybe the holy LCD-Datafile itself: | |
937 | (member (ffap-string-around) '("||" "|\n"))) | |
938 | (concat | |
939 | ;; lispdir.el may not be loaded yet: | |
95a85681 | 940 | (ffap-host-to-filename |
a0d1aadf SM |
941 | (ffap-symbol-value 'elisp-archive-host |
942 | "archive.cis.ohio-state.edu")) | |
c9ae9869 | 943 | (file-name-as-directory |
a0d1aadf SM |
944 | (ffap-symbol-value 'elisp-archive-directory |
945 | "/pub/gnu/emacs/elisp-archive/")) | |
c9ae9869 RS |
946 | (substring name 2)))) |
947 | ||
990a9cb1 KR |
948 | (defcustom ffap-rfc-path |
949 | (concat (ffap-host-to-filename "ftp.rfc-editor.org") "/in-notes/rfc%s.txt") | |
950 | "A `format' string making a filename for RFC documents. | |
951 | This can be an ange-ftp or tramp remote filename to download, or | |
952 | a local filename if you have full set of RFCs locally. See also | |
953 | `ffap-rfc-directories'." | |
954 | :type 'string | |
955 | :version "23.1" | |
956 | :group 'ffap) | |
957 | ||
8a798137 GM |
958 | (defcustom ffap-rfc-directories nil |
959 | "A list of directories to look for RFC files. | |
960 | If a given RFC isn't in these then `ffap-rfc-path' is offered." | |
961 | :type '(repeat directory) | |
0a66ac10 | 962 | :version "23.1" |
8a798137 GM |
963 | :group 'ffap) |
964 | ||
c9ae9869 | 965 | (defun ffap-rfc (name) |
8a798137 GM |
966 | (let ((num (match-string 1 name))) |
967 | (or (ffap-locate-file (format "rfc%s.txt" num) t ffap-rfc-directories) | |
968 | (format ffap-rfc-path num)))) | |
0948761d | 969 | |
213d9a4f RS |
970 | \f |
971 | ;;; At-Point Functions: | |
972 | ||
973 | (defvar ffap-string-at-point-mode-alist | |
974 | '( | |
87e2d039 | 975 | ;; The default, used when the `major-mode' is not found. |
213d9a4f RS |
976 | ;; Slightly controversial decisions: |
977 | ;; * strip trailing "@" and ":" | |
978 | ;; * no commas (good for latex) | |
b251c649 | 979 | (file "--:\\\\$+<>@-Z_[:alpha:]~*?" "<@" "@>;.,!:") |
87e2d039 | 980 | ;; An url, or maybe a email/news message-id: |
b251c649 | 981 | (url "--:=&?$+@-Z_[:alpha:]~#,%;*" "^[:alnum:]" ":;.,!?") |
87e2d039 | 982 | ;; Find a string that does *not* contain a colon: |
b251c649 | 983 | (nocolon "--9$+<>@-Z_[:alpha:]~" "<@" "@>;.,!?") |
87e2d039 | 984 | ;; A machine: |
5362ba53 | 985 | (machine "-[:alnum:]." "" ".") |
87e2d039 | 986 | ;; Mathematica paths: allow backquotes |
5362ba53 | 987 | (math-mode ",-:$+<>@-Z_[:lower:]~`" "<" "@>;.,!?`:") |
213d9a4f | 988 | ) |
87e2d039 | 989 | "Alist of \(MODE CHARS BEG END\), where MODE is a symbol, |
ee79ced8 KH |
990 | possibly a major-mode name, or one of the symbol |
991 | `file', `url', `machine', and `nocolon'. | |
87e2d039 RS |
992 | `ffap-string-at-point' uses the data fields as follows: |
993 | 1. find a maximal string of CHARS around point, | |
994 | 2. strip BEG chars before point from the beginning, | |
995 | 3. Strip END chars after point from the end.") | |
213d9a4f | 996 | |
213d9a4f RS |
997 | (defvar ffap-string-at-point nil |
998 | ;; Added at suggestion of RHOGEE (for ff-paths), 7/24/95. | |
87e2d039 RS |
999 | "Last string returned by `ffap-string-at-point'.") |
1000 | ||
1001 | (defun ffap-string-at-point (&optional mode) | |
1002 | "Return a string of characters from around point. | |
ee79ced8 | 1003 | MODE (defaults to value of `major-mode') is a symbol used to look up string |
87e2d039 | 1004 | syntax parameters in `ffap-string-at-point-mode-alist'. |
ee79ced8 | 1005 | If MODE is not found, we use `file' instead of MODE. |
0f76d837 | 1006 | If the region is active, return a string from the region. |
87e2d039 RS |
1007 | Sets `ffap-string-at-point' and `ffap-string-at-point-region'." |
1008 | (let* ((args | |
1009 | (cdr | |
1010 | (or (assq (or mode major-mode) ffap-string-at-point-mode-alist) | |
1011 | (assq 'file ffap-string-at-point-mode-alist)))) | |
1012 | (pt (point)) | |
1013 | (str | |
0f76d837 JL |
1014 | (if (and transient-mark-mode mark-active) |
1015 | (buffer-substring | |
1016 | (setcar ffap-string-at-point-region (region-beginning)) | |
1017 | (setcar (cdr ffap-string-at-point-region) (region-end))) | |
1018 | (buffer-substring | |
1019 | (save-excursion | |
1020 | (skip-chars-backward (car args)) | |
1021 | (skip-chars-forward (nth 1 args) pt) | |
1022 | (setcar ffap-string-at-point-region (point))) | |
1023 | (save-excursion | |
1024 | (skip-chars-forward (car args)) | |
1025 | (skip-chars-backward (nth 2 args) pt) | |
1026 | (setcar (cdr ffap-string-at-point-region) (point))))))) | |
0948761d | 1027 | (set-text-properties 0 (length str) nil str) |
87e2d039 | 1028 | (setq ffap-string-at-point str))) |
213d9a4f | 1029 | |
a0d1aadf | 1030 | (defun ffap-string-around () |
213d9a4f | 1031 | ;; Sometimes useful to decide how to treat a string. |
87e2d039 RS |
1032 | "Return string of two chars around last `ffap-string-at-point'. |
1033 | Assumes the buffer has not changed." | |
213d9a4f RS |
1034 | (save-excursion |
1035 | (format "%c%c" | |
1036 | (progn | |
1037 | (goto-char (car ffap-string-at-point-region)) | |
1038 | (preceding-char)) ; maybe 0 | |
1039 | (progn | |
1040 | (goto-char (nth 1 ffap-string-at-point-region)) | |
1041 | (following-char)) ; maybe 0 | |
1042 | ))) | |
1043 | ||
87e2d039 RS |
1044 | (defun ffap-copy-string-as-kill (&optional mode) |
1045 | ;; Requested by MCOOK. Useful? | |
1046 | "Call `ffap-string-at-point', and copy result to `kill-ring'." | |
1047 | (interactive) | |
1048 | (let ((str (ffap-string-at-point mode))) | |
1049 | (if (equal "" str) | |
1050 | (message "No string found around point.") | |
1051 | (kill-new str) | |
1052 | ;; Older: (apply 'copy-region-as-kill ffap-string-at-point-region) | |
1053 | (message "Copied to kill ring: %s" str)))) | |
1054 | ||
36b5be6b | 1055 | ;; External. |
eb22a8c3 | 1056 | (declare-function w3-view-this-url "ext:w3" (&optional no-show)) |
36b5be6b | 1057 | |
a0d1aadf | 1058 | (defun ffap-url-at-point () |
4454adab | 1059 | "Return URL from around point if it exists, or nil." |
87e2d039 RS |
1060 | ;; Could use w3's url-get-url-at-point instead. Both handle "URL:", |
1061 | ;; ignore non-relative links, trim punctuation. The other will | |
1062 | ;; actually look back if point is in whitespace, but I would rather | |
0948761d | 1063 | ;; ffap be less aggressive in such situations. |
213d9a4f RS |
1064 | (and |
1065 | ffap-url-regexp | |
1066 | (or | |
0948761d KH |
1067 | ;; In a w3 buffer button? |
1068 | (and (eq major-mode 'w3-mode) | |
1069 | ;; interface recommended by wmperry: | |
1070 | (w3-view-this-url t)) | |
213d9a4f | 1071 | ;; Is there a reason not to strip trailing colon? |
87e2d039 | 1072 | (let ((name (ffap-string-at-point 'url))) |
213d9a4f RS |
1073 | (cond |
1074 | ((string-match "^url:" name) (setq name (substring name 4))) | |
5362ba53 | 1075 | ((and (string-match "\\`[^:</>@]+@[^:</>@]+[[:alnum:]]\\'" name) |
213d9a4f | 1076 | ;; "foo@bar": could be "mailto" or "news" (a Message-ID). |
0948761d KH |
1077 | ;; Without "<>" it must be "mailto". Otherwise could be |
1078 | ;; either, so consult `ffap-foo-at-bar-prefix'. | |
213d9a4f | 1079 | (let ((prefix (if (and (equal (ffap-string-around) "<>") |
0948761d | 1080 | ;; Expect some odd characters: |
213d9a4f RS |
1081 | (string-match "[$.0-9].*[$.0-9].*@" name)) |
1082 | ;; Could be news: | |
87e2d039 | 1083 | ffap-foo-at-bar-prefix |
213d9a4f RS |
1084 | "mailto"))) |
1085 | (and prefix (setq name (concat prefix ":" name)))))) | |
1086 | ((ffap-newsgroup-p name) (setq name (concat "news:" name))) | |
5362ba53 | 1087 | ((and (string-match "\\`[[:alnum:]]+\\'" name) ; <mic> <root> <nobody> |
213d9a4f RS |
1088 | (equal (ffap-string-around) "<>") |
1089 | ;; (ffap-user-p name): | |
1090 | (not (string-match "~" (expand-file-name (concat "~" name)))) | |
1091 | ) | |
1092 | (setq name (concat "mailto:" name))) | |
1093 | ) | |
1094 | (and (ffap-url-p name) name) | |
1095 | )))) | |
1096 | ||
1097 | (defvar ffap-gopher-regexp | |
1098 | "^.*\\<\\(Type\\|Name\\|Path\\|Host\\|Port\\) *= *\\(.*\\) *$" | |
4454adab | 1099 | "Regexp matching a line in a gopher bookmark (maybe indented). |
87e2d039 | 1100 | The two subexpressions are the KEY and VALUE.") |
213d9a4f | 1101 | |
a0d1aadf | 1102 | (defun ffap-gopher-at-point () |
4454adab | 1103 | "If point is inside a gopher bookmark block, return its URL." |
87e2d039 | 1104 | ;; `gopher-parse-bookmark' from gopher.el is not so robust |
213d9a4f RS |
1105 | (save-excursion |
1106 | (beginning-of-line) | |
1107 | (if (looking-at ffap-gopher-regexp) | |
1108 | (progn | |
1109 | (while (and (looking-at ffap-gopher-regexp) (not (bobp))) | |
1110 | (forward-line -1)) | |
1111 | (or (looking-at ffap-gopher-regexp) (forward-line 1)) | |
a0d1aadf | 1112 | (let ((type "1") path host (port "70")) |
213d9a4f RS |
1113 | (while (looking-at ffap-gopher-regexp) |
1114 | (let ((var (intern | |
1115 | (downcase | |
1116 | (buffer-substring (match-beginning 1) | |
1117 | (match-end 1))))) | |
1118 | (val (buffer-substring (match-beginning 2) | |
1119 | (match-end 2)))) | |
1120 | (set var val) | |
1121 | (forward-line 1))) | |
1122 | (if (and path (string-match "^ftp:.*@" path)) | |
1123 | (concat "ftp://" | |
1124 | (substring path 4 (1- (match-end 0))) | |
1125 | (substring path (match-end 0))) | |
1126 | (and (= (length type) 1) | |
1127 | host;; (ffap-machine-p host) | |
1128 | (concat "gopher://" host | |
1129 | (if (equal port "70") "" (concat ":" port)) | |
1130 | "/" type path)))))))) | |
1131 | ||
1132 | (defvar ffap-ftp-sans-slash-regexp | |
1133 | (and | |
1134 | ffap-ftp-regexp | |
87e2d039 | 1135 | ;; Note: by now, we know it is not an url. |
213d9a4f RS |
1136 | ;; Icky regexp avoids: default: 123: foo::bar cs:pub |
1137 | ;; It does match on: mic@cs: cs:/pub mathcs.emory.edu: (point at end) | |
213d9a4f | 1138 | "\\`\\([^:@]+@[^:@]+:\\|[^@.:]+\\.[^@:]+:\\|[^:]+:[~/]\\)\\([^:]\\|\\'\\)") |
95a85681 | 1139 | "Strings matching this are coerced to ftp file names by ffap. |
213d9a4f RS |
1140 | That is, ffap just prepends \"/\". Set to nil to disable.") |
1141 | ||
a0d1aadf | 1142 | (defun ffap-file-at-point () |
213d9a4f RS |
1143 | "Return filename from around point if it exists, or nil. |
1144 | Existence test is skipped for names that look remote. | |
1145 | If the filename is not obvious, it also tries `ffap-alist', | |
4454adab | 1146 | which may actually result in an URL rather than a filename." |
87e2d039 | 1147 | ;; Note: this function does not need to look for url's, just |
213d9a4f | 1148 | ;; filenames. On the other hand, it is responsible for converting |
95a85681 | 1149 | ;; a pseudo-url "site.com://dir" to an ftp file name |
213d9a4f RS |
1150 | (let* ((case-fold-search t) ; url prefixes are case-insensitive |
1151 | (data (match-data)) | |
87e2d039 | 1152 | (string (ffap-string-at-point)) ; uses mode alist |
213d9a4f | 1153 | (name |
87e2d039 RS |
1154 | (or (condition-case nil |
1155 | (and (not (string-match "//" string)) ; foo.com://bar | |
1156 | (substitute-in-file-name string)) | |
1157 | (error nil)) | |
1158 | string)) | |
213d9a4f | 1159 | (abs (file-name-absolute-p name)) |
d35829ff GM |
1160 | (default-directory default-directory) |
1161 | (oname name)) | |
213d9a4f RS |
1162 | (unwind-protect |
1163 | (cond | |
c99310d5 JL |
1164 | ;; Immediate rejects (/ and // and /* are too common in C/C++): |
1165 | ((member name '("" "/" "//" "/*" ".")) nil) | |
8005ea3f RS |
1166 | ;; Immediately test local filenames. If default-directory is |
1167 | ;; remote, you probably already have a connection. | |
1168 | ((and (not abs) (ffap-file-exists-string name))) | |
1169 | ;; Try stripping off line numbers; good for compilation/grep output. | |
1170 | ((and (not abs) (string-match ":[0-9]" name) | |
1171 | (ffap-file-exists-string (substring name 0 (match-beginning 0))))) | |
c98ddbe5 RV |
1172 | ;; Try stripping off prominent (non-root - #) shell prompts |
1173 | ;; if the ffap-shell-prompt-regexp is non-nil. | |
1174 | ((and ffap-shell-prompt-regexp | |
1175 | (not abs) (string-match ffap-shell-prompt-regexp name) | |
1176 | (ffap-file-exists-string (substring name (match-end 0))))) | |
213d9a4f | 1177 | ;; Accept remote names without actual checking (too slow): |
d35829ff | 1178 | ((and abs (ffap-file-remote-p name))) |
213d9a4f RS |
1179 | ;; Ok, not remote, try the existence test even if it is absolute: |
1180 | ((and abs (ffap-file-exists-string name))) | |
2b2eb431 GM |
1181 | ;; Try stripping off line numbers. |
1182 | ((and abs (string-match ":[0-9]" name) | |
1183 | (ffap-file-exists-string (substring name 0 (match-beginning 0))))) | |
87e2d039 RS |
1184 | ;; If it contains a colon, get rid of it (and return if exists) |
1185 | ((and (string-match path-separator name) | |
1186 | (setq name (ffap-string-at-point 'nocolon)) | |
1187 | (ffap-file-exists-string name))) | |
213d9a4f RS |
1188 | ;; File does not exist, try the alist: |
1189 | ((let ((alist ffap-alist) tem try case-fold-search) | |
1190 | (while (and alist (not try)) | |
1191 | (setq tem (car alist) alist (cdr alist)) | |
1192 | (if (or (eq major-mode (car tem)) | |
1193 | (and (stringp (car tem)) | |
1194 | (string-match (car tem) name))) | |
0948761d KH |
1195 | (and (setq try |
1196 | (condition-case nil | |
1197 | (funcall (cdr tem) name) | |
1198 | (error nil))) | |
213d9a4f RS |
1199 | (setq try (or |
1200 | (ffap-url-p try) ; not a file! | |
1201 | (ffap-file-remote-p try) | |
1202 | (ffap-file-exists-string try)))))) | |
1203 | try)) | |
d35829ff GM |
1204 | ;; Try adding a leading "/" (common omission in ftp file names). |
1205 | ;; Note that this uses oname, which still has any colon part. | |
1206 | ;; This should have a lower priority than the alist stuff, | |
1207 | ;; else it matches things like "ffap.el:1234:56:Warning". | |
1208 | ((and (not abs) | |
1209 | ffap-ftp-sans-slash-regexp | |
1210 | (string-match ffap-ftp-sans-slash-regexp oname) | |
1211 | (ffap-file-remote-p (concat "/" oname)))) | |
213d9a4f RS |
1212 | ;; Alist failed? Try to guess an active remote connection |
1213 | ;; from buffer variables, and try once more, both as an | |
95a85681 | 1214 | ;; absolute and relative file name on that remote host. |
213d9a4f RS |
1215 | ((let* (ffap-rfs-regexp ; suppress |
1216 | (remote-dir | |
1217 | (cond | |
1218 | ((ffap-file-remote-p default-directory)) | |
1219 | ((and (eq major-mode 'internal-ange-ftp-mode) | |
1220 | (string-match "^\\*ftp \\(.*\\)@\\(.*\\)\\*$" | |
1221 | (buffer-name))) | |
1222 | (concat "/" (substring (buffer-name) 5 -1) ":")) | |
1223 | ;; This is too often a bad idea: | |
1224 | ;;((and (eq major-mode 'w3-mode) | |
1225 | ;; (stringp url-current-server)) | |
1226 | ;; (host-to-ange-path url-current-server)) | |
1227 | ))) | |
1228 | (and remote-dir | |
1229 | (or | |
1230 | (and (string-match "\\`\\(/?~?ftp\\)/" name) | |
1231 | (ffap-file-exists-string | |
95a85681 | 1232 | (ffap-replace-file-component |
213d9a4f RS |
1233 | remote-dir (substring name (match-end 1))))) |
1234 | (ffap-file-exists-string | |
95a85681 | 1235 | (ffap-replace-file-component remote-dir name)))))) |
c99310d5 JL |
1236 | ((and ffap-dired-wildcards |
1237 | (string-match ffap-dired-wildcards name) | |
1238 | abs | |
1239 | (ffap-file-exists-string (file-name-directory | |
1240 | (directory-file-name name))) | |
1241 | name)) | |
7e1626fb EZ |
1242 | ;; Try all parent directories by deleting the trailing directory |
1243 | ;; name until existing directory is found or name stops changing | |
1244 | ((let ((dir name)) | |
1245 | (while (and dir | |
1246 | (not (ffap-file-exists-string dir)) | |
1247 | (not (equal dir (setq dir (file-name-directory | |
1248 | (directory-file-name dir))))))) | |
1249 | (ffap-file-exists-string dir))) | |
213d9a4f | 1250 | ) |
3c2c6be2 | 1251 | (set-match-data data)))) |
213d9a4f | 1252 | \f |
0948761d | 1253 | ;;; Prompting (`ffap-read-file-or-url'): |
213d9a4f | 1254 | ;; |
87e2d039 RS |
1255 | ;; We want to complete filenames as in read-file-name, but also url's |
1256 | ;; which read-file-name-internal would truncate at the "//" string. | |
1257 | ;; The solution here is to replace read-file-name-internal with | |
1258 | ;; `ffap-read-file-or-url-internal', which checks the minibuffer | |
1259 | ;; contents before attempting to complete filenames. | |
213d9a4f RS |
1260 | |
1261 | (defun ffap-read-file-or-url (prompt guess) | |
4454adab | 1262 | "Read file or URL from minibuffer, with PROMPT and initial GUESS." |
213d9a4f | 1263 | (or guess (setq guess default-directory)) |
87e2d039 | 1264 | (let (dir) |
213d9a4f RS |
1265 | ;; Tricky: guess may have or be a local directory, like "w3/w3.elc" |
1266 | ;; or "w3/" or "../el/ffap.el" or "../../../" | |
87e2d039 | 1267 | (or (ffap-url-p guess) |
213d9a4f RS |
1268 | (progn |
1269 | (or (ffap-file-remote-p guess) | |
3788c735 KH |
1270 | (setq guess |
1271 | (abbreviate-file-name (expand-file-name guess)) | |
1272 | )) | |
213d9a4f | 1273 | (setq dir (file-name-directory guess)))) |
07556e35 | 1274 | (let ((minibuffer-completing-file-name t) |
d8df1280 | 1275 | (completion-ignore-case read-file-name-completion-ignore-case) |
ea27e496 SM |
1276 | (fnh-elem (cons ffap-url-regexp 'url-file-handler))) |
1277 | ;; Explain to `rfn-eshadow' that we can use URLs here. | |
1278 | (push fnh-elem file-name-handler-alist) | |
1279 | (unwind-protect | |
1280 | (setq guess | |
984ddcbc SM |
1281 | (let ((default-directory (if dir (expand-file-name dir) |
1282 | default-directory))) | |
1283 | (completing-read | |
1284 | prompt | |
1285 | 'ffap-read-file-or-url-internal | |
1286 | nil | |
1287 | nil | |
1288 | (if dir (cons guess (length dir)) guess) | |
1289 | (list 'file-name-history) | |
1290 | (and buffer-file-name | |
1291 | (abbreviate-file-name buffer-file-name))))) | |
ea27e496 SM |
1292 | ;; Remove the special handler manually. We used to just let-bind |
1293 | ;; file-name-handler-alist to preserve its value, but that caused | |
1294 | ;; other modifications to be lost (e.g. when Tramp gets loaded | |
1295 | ;; during the completing-read call). | |
1296 | (setq file-name-handler-alist (delq fnh-elem file-name-handler-alist)))) | |
87e2d039 RS |
1297 | ;; Do file substitution like (interactive "F"), suggested by MCOOK. |
1298 | (or (ffap-url-p guess) (setq guess (substitute-in-file-name guess))) | |
1299 | ;; Should not do it on url's, where $ is a common (VMS?) character. | |
1300 | ;; Note: upcoming url.el package ought to handle this automatically. | |
1301 | guess)) | |
213d9a4f | 1302 | |
984ddcbc | 1303 | (defun ffap-read-url-internal (string pred action) |
4454adab | 1304 | "Complete URLs from history, treating given string as valid." |
a0d1aadf | 1305 | (let ((hist (ffap-symbol-value 'url-global-history-hash-table))) |
213d9a4f RS |
1306 | (cond |
1307 | ((not action) | |
984ddcbc | 1308 | (or (try-completion string hist pred) string)) |
213d9a4f | 1309 | ((eq action t) |
984ddcbc | 1310 | (or (all-completions string hist pred) (list string))) |
87e2d039 RS |
1311 | ;; action == lambda, documented where? Tests whether string is a |
1312 | ;; valid "match". Let us always say yes. | |
1313 | (t t)))) | |
213d9a4f | 1314 | |
984ddcbc SM |
1315 | (defun ffap-read-file-or-url-internal (string pred action) |
1316 | (unless string ;Why would this ever happen? | |
d4021fd9 | 1317 | (setq string default-directory)) |
213d9a4f | 1318 | (if (ffap-url-p string) |
984ddcbc SM |
1319 | (ffap-read-url-internal string pred action) |
1320 | (read-file-name-internal string pred action))) | |
213d9a4f | 1321 | |
87e2d039 RS |
1322 | ;; The rest of this page is just to work with package complete.el. |
1323 | ;; This code assumes that you load ffap.el after complete.el. | |
1324 | ;; | |
1325 | ;; We must inform complete about whether our completion function | |
8daa9f3d | 1326 | ;; will do filename style completion. |
87e2d039 | 1327 | |
a0d1aadf | 1328 | (defun ffap-complete-as-file-p () |
87e2d039 RS |
1329 | ;; Will `minibuffer-completion-table' complete the minibuffer |
1330 | ;; contents as a filename? Assumes the minibuffer is current. | |
1331 | ;; Note: t and non-nil mean somewhat different reasons. | |
1332 | (if (eq minibuffer-completion-table 'ffap-read-file-or-url-internal) | |
1333 | (not (ffap-url-p (buffer-string))) ; t | |
9925c419 | 1334 | (and minibuffer-completing-file-name '(t)))) ;list |
87e2d039 | 1335 | |
213d9a4f RS |
1336 | (and |
1337 | (featurep 'complete) | |
87e2d039 RS |
1338 | (if (boundp 'PC-completion-as-file-name-predicate) |
1339 | ;; modern version of complete.el, just set the variable: | |
8daa9f3d | 1340 | (setq PC-completion-as-file-name-predicate 'ffap-complete-as-file-p))) |
213d9a4f RS |
1341 | |
1342 | \f | |
0948761d | 1343 | ;;; Highlighting (`ffap-highlight'): |
213d9a4f RS |
1344 | ;; |
1345 | ;; Based on overlay highlighting in Emacs 19.28 isearch.el. | |
1346 | ||
33514810 | 1347 | (defvar ffap-highlight t |
213d9a4f RS |
1348 | "If non-nil, ffap highlights the current buffer substring.") |
1349 | ||
dfe72966 JL |
1350 | (defface ffap |
1351 | '((t :inherit highlight)) | |
1352 | "Face used to highlight the current buffer substring." | |
1353 | :group 'ffap | |
1354 | :version "22.1") | |
1355 | ||
0948761d KH |
1356 | (defvar ffap-highlight-overlay nil |
1357 | "Overlay used by `ffap-highlight'.") | |
213d9a4f RS |
1358 | |
1359 | (defun ffap-highlight (&optional remove) | |
87e2d039 RS |
1360 | "If `ffap-highlight' is set, highlight the guess in this buffer. |
1361 | That is, the last buffer substring found by `ffap-string-at-point'. | |
213d9a4f | 1362 | Optional argument REMOVE means to remove any such highlighting. |
87e2d039 | 1363 | Uses the face `ffap' if it is defined, or else `highlight'." |
213d9a4f | 1364 | (cond |
0948761d KH |
1365 | (remove |
1366 | (and ffap-highlight-overlay | |
3788c735 KH |
1367 | (delete-overlay ffap-highlight-overlay)) |
1368 | ) | |
213d9a4f | 1369 | ((not ffap-highlight) nil) |
87e2d039 | 1370 | (ffap-highlight-overlay |
3788c735 KH |
1371 | (move-overlay |
1372 | ffap-highlight-overlay | |
1373 | (car ffap-string-at-point-region) | |
1374 | (nth 1 ffap-string-at-point-region) | |
1375 | (current-buffer))) | |
213d9a4f | 1376 | (t |
0948761d | 1377 | (setq ffap-highlight-overlay |
3788c735 | 1378 | (apply 'make-overlay ffap-string-at-point-region)) |
dfe72966 | 1379 | (overlay-put ffap-highlight-overlay 'face 'ffap)))) |
87e2d039 | 1380 | |
213d9a4f | 1381 | \f |
3788c735 | 1382 | ;;; Main Entrance (`find-file-at-point' == `ffap'): |
213d9a4f | 1383 | |
a0d1aadf | 1384 | (defun ffap-guesser () |
0948761d | 1385 | "Return file or URL or nil, guessed from text around point." |
213d9a4f RS |
1386 | (or (and ffap-url-regexp |
1387 | (ffap-fixup-url (or (ffap-url-at-point) | |
1388 | (ffap-gopher-at-point)))) | |
1389 | (ffap-file-at-point) ; may yield url! | |
1390 | (ffap-fixup-machine (ffap-machine-at-point)))) | |
1391 | ||
1392 | (defun ffap-prompter (&optional guess) | |
1393 | ;; Does guess and prompt step for find-file-at-point. | |
87e2d039 | 1394 | ;; Extra complication for the temporary highlighting. |
213d9a4f | 1395 | (unwind-protect |
3788c735 KH |
1396 | ;; This catch will let ffap-alist entries do their own prompting |
1397 | ;; and then maybe skip over this prompt (ff-paths, for example). | |
1398 | (catch 'ffap-prompter | |
1399 | (ffap-read-file-or-url | |
1400 | (if ffap-url-regexp "Find file or URL: " "Find file: ") | |
1401 | (prog1 | |
1961ef04 SM |
1402 | (let ((mark-active nil)) |
1403 | ;; Don't use the region here, since it can be something | |
1404 | ;; completely unwieldy. If the user wants that, she could | |
1405 | ;; use M-w before and then C-y. --Stef | |
1406 | (setq guess (or guess (ffap-guesser)))) ; using ffap-alist here | |
3788c735 KH |
1407 | (and guess (ffap-highlight)) |
1408 | ))) | |
213d9a4f RS |
1409 | (ffap-highlight t))) |
1410 | ||
1411 | ;;;###autoload | |
1412 | (defun find-file-at-point (&optional filename) | |
0948761d KH |
1413 | "Find FILENAME, guessing a default from text around point. |
1414 | If `ffap-url-regexp' is not nil, the FILENAME may also be an URL. | |
1415 | With a prefix, this command behaves exactly like `ffap-file-finder'. | |
213d9a4f | 1416 | If `ffap-require-prefix' is set, the prefix meaning is reversed. |
0948761d | 1417 | See also the variables `ffap-dired-wildcards', `ffap-newfile-prompt', |
57eb2e24 | 1418 | and the functions `ffap-file-at-point' and `ffap-url-at-point'." |
213d9a4f | 1419 | (interactive) |
32226619 | 1420 | (if (and (called-interactively-p 'interactive) |
213d9a4f RS |
1421 | (if ffap-require-prefix (not current-prefix-arg) |
1422 | current-prefix-arg)) | |
1423 | ;; Do exactly the ffap-file-finder command, even the prompting: | |
87e2d039 RS |
1424 | (let (current-prefix-arg) ; we already interpreted it |
1425 | (call-interactively ffap-file-finder)) | |
213d9a4f RS |
1426 | (or filename (setq filename (ffap-prompter))) |
1427 | (cond | |
1428 | ((ffap-url-p filename) | |
87e2d039 RS |
1429 | (let (current-prefix-arg) ; w3 2.3.25 bug, reported by KPC |
1430 | (funcall ffap-url-fetcher filename))) | |
5b523a77 JL |
1431 | ((and ffap-pass-wildcards-to-dired |
1432 | ffap-dired-wildcards | |
1433 | (string-match ffap-dired-wildcards filename)) | |
1434 | (funcall ffap-directory-finder filename)) | |
87e2d039 | 1435 | ((and ffap-dired-wildcards |
c99310d5 JL |
1436 | (string-match ffap-dired-wildcards filename) |
1437 | find-file-wildcards | |
1438 | ;; Check if it's find-file that supports wildcards arg | |
1439 | (memq ffap-file-finder '(find-file find-alternate-file))) | |
1440 | (funcall ffap-file-finder (expand-file-name filename) t)) | |
213d9a4f RS |
1441 | ((or (not ffap-newfile-prompt) |
1442 | (file-exists-p filename) | |
1443 | (y-or-n-p "File does not exist, create buffer? ")) | |
1444 | (funcall ffap-file-finder | |
1445 | ;; expand-file-name fixes "~/~/.emacs" bug sent by CHUCKR. | |
1446 | (expand-file-name filename))) | |
1447 | ;; User does not want to find a non-existent file: | |
1448 | ((signal 'file-error (list "Opening file buffer" | |
1449 | "no such file or directory" | |
1450 | filename)))))) | |
1451 | ||
0948761d | 1452 | ;; Shortcut: allow {M-x ffap} rather than {M-x find-file-at-point}. |
22ac7ca0 MR |
1453 | ;;;###autoload |
1454 | (defalias 'ffap 'find-file-at-point) | |
1455 | ||
213d9a4f | 1456 | \f |
0948761d | 1457 | ;;; Menu support (`ffap-menu'): |
213d9a4f RS |
1458 | |
1459 | (defvar ffap-menu-regexp nil | |
87e2d039 | 1460 | "*If non-nil, overrides `ffap-next-regexp' during `ffap-menu'. |
213d9a4f | 1461 | Make this more restrictive for faster menu building. |
0948761d | 1462 | For example, try \":/\" for URL (and some ftp) references.") |
213d9a4f RS |
1463 | |
1464 | (defvar ffap-menu-alist nil | |
87e2d039 | 1465 | "Buffer local cache of menu presented by `ffap-menu'.") |
213d9a4f RS |
1466 | (make-variable-buffer-local 'ffap-menu-alist) |
1467 | ||
87e2d039 | 1468 | (defvar ffap-menu-text-plist |
3788c735 | 1469 | (cond |
33514810 EZ |
1470 | ((display-mouse-p) '(face bold mouse-face highlight)) ; keymap <mousy-map> |
1471 | (t nil)) | |
87e2d039 RS |
1472 | "Text properties applied to strings found by `ffap-menu-rescan'. |
1473 | These properties may be used to fontify the menu references.") | |
1474 | ||
213d9a4f RS |
1475 | ;;;###autoload |
1476 | (defun ffap-menu (&optional rescan) | |
4454adab | 1477 | "Put up a menu of files and URLs mentioned in this buffer. |
87e2d039 RS |
1478 | Then set mark, jump to choice, and try to fetch it. The menu is |
1479 | cached in `ffap-menu-alist', and rebuilt by `ffap-menu-rescan'. | |
1480 | The optional RESCAN argument \(a prefix, interactively\) forces | |
1481 | a rebuild. Searches with `ffap-menu-regexp'." | |
213d9a4f RS |
1482 | (interactive "P") |
1483 | ;; (require 'imenu) -- no longer used, but roughly emulated | |
1484 | (if (or (not ffap-menu-alist) rescan | |
1485 | ;; or if the first entry is wrong: | |
1486 | (and ffap-menu-alist | |
1487 | (let ((first (car ffap-menu-alist))) | |
1488 | (save-excursion | |
1489 | (goto-char (cdr first)) | |
1490 | (not (equal (car first) (ffap-guesser))))))) | |
1491 | (ffap-menu-rescan)) | |
1492 | ;; Tail recursive: | |
1493 | (ffap-menu-ask | |
1494 | (if ffap-url-regexp "Find file or URL" "Find file") | |
1495 | (cons (cons "*Rescan Buffer*" -1) ffap-menu-alist) | |
1496 | 'ffap-menu-cont)) | |
1497 | ||
1498 | (defun ffap-menu-cont (choice) ; continuation of ffap-menu | |
1499 | (if (< (cdr choice) 0) | |
1500 | (ffap-menu t) ; *Rescan* | |
1501 | (push-mark) | |
1502 | (goto-char (cdr choice)) | |
1503 | ;; Momentary highlight: | |
1504 | (unwind-protect | |
1505 | (progn | |
1506 | (and ffap-highlight (ffap-guesser) (ffap-highlight)) | |
1507 | (sit-for 0) ; display | |
1508 | (find-file-at-point (car choice))) | |
1509 | (ffap-highlight t)))) | |
1510 | ||
1511 | (defun ffap-menu-ask (title alist cont) | |
1512 | "Prompt from a menu of choices, and then apply some action. | |
0948761d | 1513 | Arguments are TITLE, ALIST, and CONT \(a continuation function\). |
213d9a4f RS |
1514 | This uses either a menu or the minibuffer depending on invocation. |
1515 | The TITLE string is used as either the prompt or menu title. | |
ee79ced8 | 1516 | Each ALIST entry looks like (STRING . DATA) and defines one choice. |
0948761d KH |
1517 | Function CONT is applied to the entry chosen by the user." |
1518 | ;; Note: this function is used with a different continuation | |
1519 | ;; by the ffap-url add-on package. | |
1520 | ;; Could try rewriting to use easymenu.el or lmenu.el. | |
1521 | (let (choice) | |
1522 | (cond | |
1523 | ;; Emacs mouse: | |
1524 | ((and (fboundp 'x-popup-menu) (ffap-mouse-event)) | |
1525 | (setq choice | |
1526 | (x-popup-menu | |
1527 | t | |
1528 | (list "" (cons title | |
984ddcbc | 1529 | (mapcar (lambda (i) (cons (car i) i)) |
0948761d KH |
1530 | alist)))))) |
1531 | ;; minibuffer with completion buffer: | |
1532 | (t | |
1533 | (let ((minibuffer-setup-hook 'minibuffer-completion-help)) | |
1534 | ;; Bug: prompting may assume unique strings, no "". | |
1535 | (setq choice | |
1536 | (completing-read | |
1537 | (format "%s (default %s): " title (car (car alist))) | |
1538 | alist nil t | |
1539 | ;; (cons (car (car alist)) 0) | |
1540 | nil))) | |
1541 | (sit-for 0) ; redraw original screen | |
1542 | ;; Convert string to its entry, or else the default: | |
984ddcbc | 1543 | (setq choice (or (assoc choice alist) (car alist))))) |
0948761d KH |
1544 | (if choice |
1545 | (funcall cont choice) | |
1546 | (message "No choice made!") ; possible with menus | |
1547 | nil))) | |
213d9a4f | 1548 | |
a0d1aadf | 1549 | (defun ffap-menu-rescan () |
87e2d039 RS |
1550 | "Search buffer for `ffap-menu-regexp' to build `ffap-menu-alist'. |
1551 | Applies `ffap-menu-text-plist' text properties at all matches." | |
213d9a4f RS |
1552 | (interactive) |
1553 | (let ((ffap-next-regexp (or ffap-menu-regexp ffap-next-regexp)) | |
0948761d KH |
1554 | (range (- (point-max) (point-min))) |
1555 | (mod (buffer-modified-p)) ; was buffer modified? | |
e27de09e EZ |
1556 | ;; inhibit-read-only works on read-only text properties |
1557 | ;; as well as read-only buffers. | |
1558 | (inhibit-read-only t) ; to set text-properties | |
0948761d | 1559 | item |
87e2d039 RS |
1560 | ;; Avoid repeated searches of the *mode-alist: |
1561 | (major-mode (if (assq major-mode ffap-string-at-point-mode-alist) | |
1562 | major-mode | |
0948761d | 1563 | 'file))) |
213d9a4f | 1564 | (setq ffap-menu-alist nil) |
0948761d KH |
1565 | (unwind-protect |
1566 | (save-excursion | |
1567 | (goto-char (point-min)) | |
1568 | (while (setq item (ffap-next-guess)) | |
1569 | (setq ffap-menu-alist (cons (cons item (point)) ffap-menu-alist)) | |
1570 | (add-text-properties (car ffap-string-at-point-region) (point) | |
1571 | ffap-menu-text-plist) | |
1572 | (message "Scanning...%2d%% <%s>" | |
1573 | (/ (* 100 (- (point) (point-min))) range) item))) | |
984ddcbc | 1574 | (or mod (restore-buffer-modified-p nil)))) |
213d9a4f RS |
1575 | (message "Scanning...done") |
1576 | ;; Remove duplicates. | |
1577 | (setq ffap-menu-alist ; sort by item | |
1578 | (sort ffap-menu-alist | |
1579 | (function | |
1580 | (lambda (a b) (string-lessp (car a) (car b)))))) | |
0948761d | 1581 | (let ((ptr ffap-menu-alist)) ; remove duplicates |
213d9a4f RS |
1582 | (while (cdr ptr) |
1583 | (if (equal (car (car ptr)) (car (car (cdr ptr)))) | |
1584 | (setcdr ptr (cdr (cdr ptr))) | |
1585 | (setq ptr (cdr ptr))))) | |
1586 | (setq ffap-menu-alist ; sort by position | |
1587 | (sort ffap-menu-alist | |
1588 | (function | |
1589 | (lambda (a b) (< (cdr a) (cdr b))))))) | |
1590 | ||
1591 | \f | |
0948761d | 1592 | ;;; Mouse Support (`ffap-at-mouse'): |
213d9a4f | 1593 | ;; |
87e2d039 | 1594 | ;; See the suggested binding in ffap-bindings (near eof). |
213d9a4f | 1595 | |
0948761d KH |
1596 | (defvar ffap-at-mouse-fallback nil ; ffap-menu? too time-consuming |
1597 | "Command invoked by `ffap-at-mouse' if nothing found at click, or nil. | |
1598 | Ignored when `ffap-at-mouse' is called programmatically.") | |
213d9a4f RS |
1599 | (put 'ffap-at-mouse-fallback 'risky-local-variable t) |
1600 | ||
0948761d | 1601 | ;;;###autoload |
213d9a4f | 1602 | (defun ffap-at-mouse (e) |
4454adab | 1603 | "Find file or URL guessed from text around mouse click. |
3788c735 KH |
1604 | Interactively, calls `ffap-at-mouse-fallback' if no guess is found. |
1605 | Return value: | |
1606 | * if a guess string is found, return it (after finding it) | |
1607 | * if the fallback is called, return whatever it returns | |
1608 | * otherwise, nil" | |
213d9a4f RS |
1609 | (interactive "e") |
1610 | (let ((guess | |
1611 | ;; Maybe less surprising without the save-excursion? | |
1612 | (save-excursion | |
1613 | (mouse-set-point e) | |
0948761d KH |
1614 | ;; Would prefer to do nothing unless click was *on* text. How |
1615 | ;; to tell that the click was beyond the end of current line? | |
213d9a4f RS |
1616 | (ffap-guesser)))) |
1617 | (cond | |
1618 | (guess | |
0948761d | 1619 | (set-buffer (ffap-event-buffer e)) |
213d9a4f RS |
1620 | (ffap-highlight) |
1621 | (unwind-protect | |
1622 | (progn | |
1623 | (sit-for 0) ; display | |
0948761d KH |
1624 | (message "Finding `%s'" guess) |
1625 | (find-file-at-point guess) | |
3788c735 | 1626 | guess) ; success: return non-nil |
213d9a4f | 1627 | (ffap-highlight t))) |
32226619 | 1628 | ((called-interactively-p 'interactive) |
0948761d KH |
1629 | (if ffap-at-mouse-fallback |
1630 | (call-interactively ffap-at-mouse-fallback) | |
4454adab | 1631 | (message "No file or URL found at mouse click.") |
3788c735 | 1632 | nil)) ; no fallback, return nil |
0948761d KH |
1633 | ;; failure: return nil |
1634 | ))) | |
213d9a4f RS |
1635 | |
1636 | \f | |
c99310d5 | 1637 | ;;; ffap-other-*, ffap-read-only-*, ffap-alternate-* commands: |
0948761d KH |
1638 | |
1639 | ;; There could be a real `ffap-noselect' function, but we would need | |
1640 | ;; at least two new user variables, and there is no w3-fetch-noselect. | |
1641 | ;; So instead, we just fake it with a slow save-window-excursion. | |
213d9a4f | 1642 | |
a0d1aadf | 1643 | (defun ffap-other-window () |
0948761d KH |
1644 | "Like `ffap', but put buffer in another window. |
1645 | Only intended for interactive use." | |
213d9a4f | 1646 | (interactive) |
c99310d5 JL |
1647 | (let (value) |
1648 | (switch-to-buffer-other-window | |
1649 | (save-window-excursion | |
1650 | (setq value (call-interactively 'ffap)) | |
1651 | (unless (or (bufferp value) (bufferp (car-safe value))) | |
1652 | (setq value (current-buffer))) | |
1653 | (current-buffer))) | |
1654 | value)) | |
213d9a4f | 1655 | |
a0d1aadf | 1656 | (defun ffap-other-frame () |
0948761d KH |
1657 | "Like `ffap', but put buffer in another frame. |
1658 | Only intended for interactive use." | |
213d9a4f | 1659 | (interactive) |
0948761d | 1660 | ;; Extra code works around dedicated windows (noted by JENS, 7/96): |
c99310d5 JL |
1661 | (let* ((win (selected-window)) |
1662 | (wdp (window-dedicated-p win)) | |
1663 | value) | |
0948761d KH |
1664 | (unwind-protect |
1665 | (progn | |
1666 | (set-window-dedicated-p win nil) | |
1667 | (switch-to-buffer-other-frame | |
1668 | (save-window-excursion | |
c99310d5 JL |
1669 | (setq value (call-interactively 'ffap)) |
1670 | (unless (or (bufferp value) (bufferp (car-safe value))) | |
1671 | (setq value (current-buffer))) | |
0948761d | 1672 | (current-buffer)))) |
c99310d5 JL |
1673 | (set-window-dedicated-p win wdp)) |
1674 | value)) | |
1675 | ||
1676 | (defun ffap-read-only () | |
1677 | "Like `ffap', but mark buffer as read-only. | |
1678 | Only intended for interactive use." | |
1679 | (interactive) | |
1680 | (let ((value (call-interactively 'ffap))) | |
1681 | (unless (or (bufferp value) (bufferp (car-safe value))) | |
1682 | (setq value (current-buffer))) | |
1683 | (mapc (lambda (b) (with-current-buffer b (toggle-read-only 1))) | |
1684 | (if (listp value) value (list value))) | |
1685 | value)) | |
1686 | ||
1687 | (defun ffap-read-only-other-window () | |
1688 | "Like `ffap', but put buffer in another window and mark as read-only. | |
1689 | Only intended for interactive use." | |
1690 | (interactive) | |
1691 | (let ((value (ffap-other-window))) | |
1692 | (mapc (lambda (b) (with-current-buffer b (toggle-read-only 1))) | |
1693 | (if (listp value) value (list value))) | |
1694 | value)) | |
1695 | ||
1696 | (defun ffap-read-only-other-frame () | |
1697 | "Like `ffap', but put buffer in another frame and mark as read-only. | |
1698 | Only intended for interactive use." | |
1699 | (interactive) | |
1700 | (let ((value (ffap-other-frame))) | |
1701 | (mapc (lambda (b) (with-current-buffer b (toggle-read-only 1))) | |
1702 | (if (listp value) value (list value))) | |
1703 | value)) | |
1704 | ||
1705 | (defun ffap-alternate-file () | |
1706 | "Like `ffap' and `find-alternate-file'. | |
1707 | Only intended for interactive use." | |
1708 | (interactive) | |
1709 | (let ((ffap-file-finder 'find-alternate-file)) | |
1710 | (call-interactively 'ffap))) | |
213d9a4f | 1711 | |
e2685eb7 JL |
1712 | (defun ffap-alternate-file-other-window () |
1713 | "Like `ffap' and `find-alternate-file-other-window'. | |
1714 | Only intended for interactive use." | |
1715 | (interactive) | |
1716 | (let ((ffap-file-finder 'find-alternate-file-other-window)) | |
1717 | (call-interactively 'ffap))) | |
1718 | ||
1719 | (defun ffap-literally () | |
1720 | "Like `ffap' and `find-file-literally'. | |
1721 | Only intended for interactive use." | |
1722 | (interactive) | |
1723 | (let ((ffap-file-finder 'find-file-literally)) | |
1724 | (call-interactively 'ffap))) | |
1725 | ||
1726 | (defalias 'find-file-literally-at-point 'ffap-literally) | |
1727 | ||
213d9a4f | 1728 | \f |
87e2d039 RS |
1729 | ;;; Bug Reporter: |
1730 | ||
36b5be6b GM |
1731 | (define-obsolete-function-alias 'ffap-bug 'report-emacs-bug "23.1") |
1732 | (define-obsolete-function-alias 'ffap-submit-bug 'report-emacs-bug "23.1") | |
213d9a4f RS |
1733 | |
1734 | \f | |
87e2d039 | 1735 | ;;; Hooks for Gnus, VM, Rmail: |
213d9a4f | 1736 | ;; |
87e2d039 RS |
1737 | ;; If you do not like these bindings, write versions with whatever |
1738 | ;; bindings you would prefer. | |
213d9a4f | 1739 | |
a0d1aadf | 1740 | (defun ffap-ro-mode-hook () |
87e2d039 RS |
1741 | "Bind `ffap-next' and `ffap-menu' to M-l and M-m, resp." |
1742 | (local-set-key "\M-l" 'ffap-next) | |
1743 | (local-set-key "\M-m" 'ffap-menu) | |
1744 | ) | |
213d9a4f | 1745 | |
a0d1aadf | 1746 | (defun ffap-gnus-hook () |
87e2d039 RS |
1747 | "Bind `ffap-gnus-next' and `ffap-gnus-menu' to M-l and M-m, resp." |
1748 | (set (make-local-variable 'ffap-foo-at-bar-prefix) "news") ; message-id's | |
1749 | ;; Note "l", "L", "m", "M" are taken: | |
1750 | (local-set-key "\M-l" 'ffap-gnus-next) | |
1751 | (local-set-key "\M-m" 'ffap-gnus-menu)) | |
213d9a4f | 1752 | |
9890a229 RS |
1753 | (defvar gnus-summary-buffer) |
1754 | (defvar gnus-article-buffer) | |
1755 | ||
36b5be6b GM |
1756 | ;; This code is called from gnus. |
1757 | (declare-function gnus-summary-select-article "gnus-sum" | |
1758 | (&optional all-headers force pseudo article)) | |
1759 | ||
1760 | (declare-function gnus-configure-windows "gnus-win" | |
1761 | (setting &optional force)) | |
1762 | ||
87e2d039 RS |
1763 | (defun ffap-gnus-wrapper (form) ; used by both commands below |
1764 | (and (eq (current-buffer) (get-buffer gnus-summary-buffer)) | |
1765 | (gnus-summary-select-article)) ; get article of current line | |
1766 | ;; Preserve selected buffer, but do not do save-window-excursion, | |
1767 | ;; since we want to see any window created by the form. Temporarily | |
1768 | ;; select the article buffer, so we can see any point movement. | |
1769 | (let ((sb (window-buffer (selected-window)))) | |
1770 | (gnus-configure-windows 'article) | |
1771 | (pop-to-buffer gnus-article-buffer) | |
1772 | (widen) | |
1773 | ;; Skip headers for ffap-gnus-next (which will wrap around) | |
1774 | (if (eq (point) (point-min)) (search-forward "\n\n" nil t)) | |
1775 | (unwind-protect | |
1776 | (eval form) | |
1777 | (pop-to-buffer sb)))) | |
1778 | ||
a0d1aadf | 1779 | (defun ffap-gnus-next () |
87e2d039 RS |
1780 | "Run `ffap-next' in the gnus article buffer." |
1781 | (interactive) (ffap-gnus-wrapper '(ffap-next nil t))) | |
1782 | ||
a0d1aadf | 1783 | (defun ffap-gnus-menu () |
87e2d039 RS |
1784 | "Run `ffap-menu' in the gnus article buffer." |
1785 | (interactive) (ffap-gnus-wrapper '(ffap-menu))) | |
1786 | ||
1787 | \f | |
61154252 | 1788 | (defcustom dired-at-point-require-prefix nil |
9201cc28 | 1789 | "If set, reverses the prefix argument to `dired-at-point'. |
61154252 RS |
1790 | This is nil so neophytes notice ffap. Experts may prefer to disable |
1791 | ffap most of the time." | |
1792 | :type 'boolean | |
1793 | :group 'ffap | |
1794 | :version "20.3") | |
1795 | ||
1796 | ;;;###autoload | |
1797 | (defun dired-at-point (&optional filename) | |
918fe50f JL |
1798 | "Start Dired, defaulting to file at point. See `ffap'. |
1799 | If `dired-at-point-require-prefix' is set, the prefix meaning is reversed." | |
61154252 | 1800 | (interactive) |
32226619 | 1801 | (if (and (called-interactively-p 'interactive) |
61154252 RS |
1802 | (if dired-at-point-require-prefix |
1803 | (not current-prefix-arg) | |
1804 | current-prefix-arg)) | |
1805 | (let (current-prefix-arg) ; already interpreted | |
c99310d5 | 1806 | (call-interactively ffap-directory-finder)) |
61154252 RS |
1807 | (or filename (setq filename (dired-at-point-prompter))) |
1808 | (cond | |
1809 | ((ffap-url-p filename) | |
1810 | (funcall ffap-url-fetcher filename)) | |
1811 | ((and ffap-dired-wildcards | |
1812 | (string-match ffap-dired-wildcards filename)) | |
c99310d5 | 1813 | (funcall ffap-directory-finder filename)) |
61154252 RS |
1814 | ((file-exists-p filename) |
1815 | (if (file-directory-p filename) | |
c99310d5 JL |
1816 | (funcall ffap-directory-finder |
1817 | (expand-file-name filename)) | |
1818 | (funcall ffap-directory-finder | |
1819 | (concat (expand-file-name filename) "*")))) | |
0f76d837 JL |
1820 | ((and (file-writable-p |
1821 | (or (file-name-directory (directory-file-name filename)) | |
1822 | filename)) | |
3fa86f26 | 1823 | (y-or-n-p "Directory does not exist, create it? ")) |
61154252 | 1824 | (make-directory filename) |
c99310d5 | 1825 | (funcall ffap-directory-finder filename)) |
61154252 RS |
1826 | ((error "No such file or directory `%s'" filename))))) |
1827 | ||
1828 | (defun dired-at-point-prompter (&optional guess) | |
1829 | ;; Does guess and prompt step for find-file-at-point. | |
1830 | ;; Extra complication for the temporary highlighting. | |
1831 | (unwind-protect | |
1832 | (ffap-read-file-or-url | |
0fdc185e MR |
1833 | (cond |
1834 | ((eq ffap-directory-finder 'list-directory) | |
1835 | "List directory (brief): ") | |
1836 | (ffap-url-regexp "Dired file or URL: ") | |
1837 | (t "Dired file: ")) | |
61154252 | 1838 | (prog1 |
0f76d837 JL |
1839 | (setq guess (or guess |
1840 | (let ((guess (ffap-guesser))) | |
1841 | (if (or (not guess) | |
1842 | (ffap-url-p guess) | |
1843 | (ffap-file-remote-p guess)) | |
1844 | guess | |
1845 | (setq guess (abbreviate-file-name | |
1846 | (expand-file-name guess))) | |
1847 | (cond | |
1848 | ;; Interpret local directory as a directory. | |
1849 | ((file-directory-p guess) | |
1850 | (file-name-as-directory guess)) | |
1851 | ;; Get directory component from local files. | |
1852 | ((file-regular-p guess) | |
1853 | (file-name-directory guess)) | |
1854 | (guess)))) | |
1855 | )) | |
1856 | (and guess (ffap-highlight)))) | |
61154252 RS |
1857 | (ffap-highlight t))) |
1858 | \f | |
c99310d5 JL |
1859 | ;;; ffap-dired-other-*, ffap-list-directory commands: |
1860 | ||
1861 | (defun ffap-dired-other-window () | |
1862 | "Like `dired-at-point', but put buffer in another window. | |
1863 | Only intended for interactive use." | |
1864 | (interactive) | |
1865 | (let (value) | |
1866 | (switch-to-buffer-other-window | |
1867 | (save-window-excursion | |
1868 | (setq value (call-interactively 'dired-at-point)) | |
1869 | (current-buffer))) | |
1870 | value)) | |
1871 | ||
1872 | (defun ffap-dired-other-frame () | |
1873 | "Like `dired-at-point', but put buffer in another frame. | |
1874 | Only intended for interactive use." | |
1875 | (interactive) | |
1876 | ;; Extra code works around dedicated windows (noted by JENS, 7/96): | |
1877 | (let* ((win (selected-window)) | |
1878 | (wdp (window-dedicated-p win)) | |
1879 | value) | |
1880 | (unwind-protect | |
1881 | (progn | |
1882 | (set-window-dedicated-p win nil) | |
1883 | (switch-to-buffer-other-frame | |
1884 | (save-window-excursion | |
1885 | (setq value (call-interactively 'dired-at-point)) | |
1886 | (current-buffer)))) | |
1887 | (set-window-dedicated-p win wdp)) | |
1888 | value)) | |
1889 | ||
1890 | (defun ffap-list-directory () | |
1891 | "Like `dired-at-point' and `list-directory'. | |
1892 | Only intended for interactive use." | |
1893 | (interactive) | |
1894 | (let ((ffap-directory-finder 'list-directory)) | |
1895 | (call-interactively 'dired-at-point))) | |
1896 | ||
1897 | \f | |
7d371eac JL |
1898 | ;;; Hooks to put in `file-name-at-point-functions': |
1899 | ||
1900 | ;;;###autoload | |
1901 | (progn (defun ffap-guess-file-name-at-point () | |
1902 | "Try to get a file name at point. | |
a0d1aadf | 1903 | This hook is intended to be put in `file-name-at-point-functions'." |
7d371eac JL |
1904 | (when (fboundp 'ffap-guesser) |
1905 | ;; Logic from `ffap-read-file-or-url' and `dired-at-point-prompter'. | |
1906 | (let ((guess (ffap-guesser))) | |
1907 | (setq guess | |
1908 | (if (or (not guess) | |
1909 | (and (fboundp 'ffap-url-p) | |
1910 | (ffap-url-p guess)) | |
1911 | (and (fboundp 'ffap-file-remote-p) | |
1912 | (ffap-file-remote-p guess))) | |
1913 | guess | |
1914 | (abbreviate-file-name (expand-file-name guess)))) | |
1915 | (when guess | |
1916 | (if (file-directory-p guess) | |
1917 | (file-name-as-directory guess) | |
1918 | guess)))))) | |
1919 | ||
1920 | \f | |
0948761d | 1921 | ;;; Offer default global bindings (`ffap-bindings'): |
87e2d039 RS |
1922 | |
1923 | (defvar ffap-bindings | |
3788c735 KH |
1924 | '( |
1925 | (global-set-key [S-mouse-3] 'ffap-at-mouse) | |
1926 | (global-set-key [C-S-mouse-3] 'ffap-menu) | |
c99310d5 | 1927 | |
3788c735 | 1928 | (global-set-key "\C-x\C-f" 'find-file-at-point) |
c99310d5 JL |
1929 | (global-set-key "\C-x\C-r" 'ffap-read-only) |
1930 | (global-set-key "\C-x\C-v" 'ffap-alternate-file) | |
1931 | ||
3788c735 KH |
1932 | (global-set-key "\C-x4f" 'ffap-other-window) |
1933 | (global-set-key "\C-x5f" 'ffap-other-frame) | |
c99310d5 JL |
1934 | (global-set-key "\C-x4r" 'ffap-read-only-other-window) |
1935 | (global-set-key "\C-x5r" 'ffap-read-only-other-frame) | |
1936 | ||
3d729a9a | 1937 | (global-set-key "\C-xd" 'dired-at-point) |
c99310d5 JL |
1938 | (global-set-key "\C-x4d" 'ffap-dired-other-window) |
1939 | (global-set-key "\C-x5d" 'ffap-dired-other-frame) | |
1940 | (global-set-key "\C-x\C-d" 'ffap-list-directory) | |
1941 | ||
3788c735 KH |
1942 | (add-hook 'gnus-summary-mode-hook 'ffap-gnus-hook) |
1943 | (add-hook 'gnus-article-mode-hook 'ffap-gnus-hook) | |
1944 | (add-hook 'vm-mode-hook 'ffap-ro-mode-hook) | |
1945 | (add-hook 'rmail-mode-hook 'ffap-ro-mode-hook) | |
1946 | ;; (setq dired-x-hands-off-my-keys t) ; the default | |
1947 | ) | |
1948 | "List of binding forms evaluated by function `ffap-bindings'. | |
148b5960 | 1949 | A reasonable ffap installation needs just this one line: |
87e2d039 | 1950 | (ffap-bindings) |
0948761d | 1951 | Of course if you do not like these bindings, just roll your own!") |
87e2d039 | 1952 | |
25050dab | 1953 | ;;;###autoload |
a0d1aadf | 1954 | (defun ffap-bindings () |
87e2d039 | 1955 | "Evaluate the forms in variable `ffap-bindings'." |
25050dab | 1956 | (interactive) |
87e2d039 RS |
1957 | (eval (cons 'progn ffap-bindings))) |
1958 | ||
87e2d039 | 1959 | \f |
4648ccdf | 1960 | (provide 'ffap) |
ab5796a9 | 1961 | |
213d9a4f | 1962 | ;;; ffap.el ends here |