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c9dff4e3 | 1 | ;;; whitespace.el --- minor mode to visualize TAB, (HARD) SPACE, NEWLINE |
30d0ade9 | 2 | |
acaf905b | 3 | ;; Copyright (C) 2000-2012 Free Software Foundation, Inc. |
30d0ade9 VJL |
4 | |
5 | ;; Author: Vinicius Jose Latorre <viniciusjl@ig.com.br> | |
6 | ;; Maintainer: Vinicius Jose Latorre <viniciusjl@ig.com.br> | |
7 | ;; Keywords: data, wp | |
84bd6e9e | 8 | ;; Version: 13.2.2 |
30d0ade9 VJL |
9 | ;; X-URL: http://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre |
10 | ||
11 | ;; This file is part of GNU Emacs. | |
12 | ||
eb3fa2cf GM |
13 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
14 | ;; it under the terms of the GNU General Public License as published by | |
15 | ;; the Free Software Foundation, either version 3 of the License, or | |
16 | ;; (at your option) any later version. | |
30d0ade9 | 17 | |
eb3fa2cf GM |
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. | |
30d0ade9 VJL |
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/>. |
30d0ade9 VJL |
25 | |
26 | ;;; Commentary: | |
27 | ||
28 | ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
29 | ;; | |
30 | ;; Introduction | |
31 | ;; ------------ | |
32 | ;; | |
040f578c | 33 | ;; This package is a minor mode to visualize blanks (TAB, (HARD) SPACE |
30d0ade9 VJL |
34 | ;; and NEWLINE). |
35 | ;; | |
c9dff4e3 | 36 | ;; whitespace uses two ways to visualize blanks: faces and display |
30d0ade9 VJL |
37 | ;; table. |
38 | ;; | |
39 | ;; * Faces are used to highlight the background with a color. | |
c9dff4e3 | 40 | ;; whitespace uses font-lock to highlight blank characters. |
30d0ade9 VJL |
41 | ;; |
42 | ;; * Display table changes the way a character is displayed, that is, | |
43 | ;; it provides a visual mark for characters, for example, at the end | |
44 | ;; of line (?\xB6), at SPACEs (?\xB7) and at TABs (?\xBB). | |
45 | ;; | |
556885cd VJL |
46 | ;; The `whitespace-style' variable selects which way blanks are |
47 | ;; visualized. | |
30d0ade9 | 48 | ;; |
c9dff4e3 | 49 | ;; Note that when whitespace is turned on, whitespace saves the |
30d0ade9 | 50 | ;; font-lock state, that is, if font-lock is on or off. And |
c9dff4e3 VJL |
51 | ;; whitespace restores the font-lock state when it is turned off. So, |
52 | ;; if whitespace is turned on and font-lock is off, whitespace also | |
30d0ade9 | 53 | ;; turns on the font-lock to highlight blanks, but the font-lock will |
c9dff4e3 VJL |
54 | ;; be turned off when whitespace is turned off. Thus, turn on |
55 | ;; font-lock before whitespace is on, if you want that font-lock | |
56 | ;; continues on after whitespace is turned off. | |
30d0ade9 | 57 | ;; |
c9dff4e3 | 58 | ;; When whitespace is on, it takes care of highlighting some special |
30d0ade9 VJL |
59 | ;; characters over the default mechanism of `nobreak-char-display' |
60 | ;; (which see) and `show-trailing-whitespace' (which see). | |
61 | ;; | |
102b1598 VJL |
62 | ;; The trailing spaces are not highlighted while point is at end of line. |
63 | ;; Also the spaces at beginning of buffer are not highlighted while point is at | |
64 | ;; beginning of buffer; and the spaces at end of buffer are not highlighted | |
65 | ;; while point is at end of buffer. | |
66 | ;; | |
c9dff4e3 | 67 | ;; There are two ways of using whitespace: local and global. |
30d0ade9 | 68 | ;; |
c9dff4e3 | 69 | ;; * Local whitespace affects only the current buffer. |
30d0ade9 | 70 | ;; |
c9dff4e3 VJL |
71 | ;; * Global whitespace affects all current and future buffers. That |
72 | ;; is, if you turn on global whitespace and then create a new | |
73 | ;; buffer, the new buffer will also have whitespace on. The | |
74 | ;; `whitespace-global-modes' variable controls which major-mode will | |
75 | ;; be automagically turned on. | |
30d0ade9 VJL |
76 | ;; |
77 | ;; You can mix the local and global usage without any conflict. But | |
c9dff4e3 VJL |
78 | ;; local whitespace has priority over global whitespace. Whitespace |
79 | ;; mode is active in a buffer if you have enabled it in that buffer or | |
80 | ;; if you have enabled it globally. | |
30d0ade9 | 81 | ;; |
c9dff4e3 | 82 | ;; When global and local whitespace are on: |
30d0ade9 | 83 | ;; |
c9dff4e3 | 84 | ;; * if local whitespace is turned off, whitespace is turned off for |
30d0ade9 VJL |
85 | ;; the current buffer only. |
86 | ;; | |
c9dff4e3 VJL |
87 | ;; * if global whitespace is turned off, whitespace continues on only |
88 | ;; in the buffers in which local whitespace is on. | |
30d0ade9 | 89 | ;; |
c9dff4e3 | 90 | ;; To use whitespace, insert in your ~/.emacs: |
30d0ade9 | 91 | ;; |
a025644d | 92 | ;; (require 'whitespace) |
30d0ade9 | 93 | ;; |
c9dff4e3 VJL |
94 | ;; Or autoload at least one of the commands`whitespace-mode', |
95 | ;; `whitespace-toggle-options', `global-whitespace-mode' or | |
96 | ;; `global-whitespace-toggle-options'. For example: | |
30d0ade9 | 97 | ;; |
c9dff4e3 VJL |
98 | ;; (autoload 'whitespace-mode "whitespace" |
99 | ;; "Toggle whitespace visualization." t) | |
100 | ;; (autoload 'whitespace-toggle-options "whitespace" | |
101 | ;; "Toggle local `whitespace-mode' options." t) | |
30d0ade9 | 102 | ;; |
c9dff4e3 | 103 | ;; whitespace was inspired by: |
30d0ade9 | 104 | ;; |
97a739d5 VJL |
105 | ;; whitespace.el Rajesh Vaidheeswarran <rv@gnu.org> |
106 | ;; Warn about and clean bogus whitespaces in the file | |
107 | ;; (inspired the idea to warn and clean some blanks) | |
c9dff4e3 VJL |
108 | ;; This was the original `whitespace.el' which was replaced by |
109 | ;; `blank-mode.el'. And later `blank-mode.el' was renamed to | |
110 | ;; `whitespace.el'. | |
97a739d5 | 111 | ;; |
30d0ade9 VJL |
112 | ;; show-whitespace-mode.el Aurelien Tisne <aurelien.tisne@free.fr> |
113 | ;; Simple mode to highlight whitespaces | |
114 | ;; (inspired the idea to use font-lock) | |
115 | ;; | |
116 | ;; whitespace-mode.el Lawrence Mitchell <wence@gmx.li> | |
117 | ;; Major mode for editing Whitespace | |
118 | ;; (inspired the idea to use display table) | |
119 | ;; | |
120 | ;; visws.el Miles Bader <miles@gnu.org> | |
121 | ;; Make whitespace visible | |
122 | ;; (handle display table, his code was modified, but the main | |
123 | ;; idea was kept) | |
124 | ;; | |
125 | ;; | |
c9dff4e3 | 126 | ;; Using whitespace |
30d0ade9 VJL |
127 | ;; ---------------- |
128 | ;; | |
129 | ;; There is no problem if you mix local and global minor mode usage. | |
130 | ;; | |
c9dff4e3 VJL |
131 | ;; * LOCAL whitespace: |
132 | ;; + To toggle whitespace options locally, type: | |
30d0ade9 | 133 | ;; |
c9dff4e3 | 134 | ;; M-x whitespace-toggle-options RET |
30d0ade9 | 135 | ;; |
c9dff4e3 | 136 | ;; + To activate whitespace locally, type: |
30d0ade9 | 137 | ;; |
c9dff4e3 | 138 | ;; C-u 1 M-x whitespace-mode RET |
30d0ade9 | 139 | ;; |
c9dff4e3 | 140 | ;; + To deactivate whitespace locally, type: |
30d0ade9 | 141 | ;; |
c9dff4e3 | 142 | ;; C-u 0 M-x whitespace-mode RET |
30d0ade9 | 143 | ;; |
c9dff4e3 | 144 | ;; + To toggle whitespace locally, type: |
30d0ade9 | 145 | ;; |
c9dff4e3 | 146 | ;; M-x whitespace-mode RET |
30d0ade9 | 147 | ;; |
c9dff4e3 VJL |
148 | ;; * GLOBAL whitespace: |
149 | ;; + To toggle whitespace options globally, type: | |
30d0ade9 | 150 | ;; |
c9dff4e3 | 151 | ;; M-x global-whitespace-toggle-options RET |
30d0ade9 | 152 | ;; |
c9dff4e3 | 153 | ;; + To activate whitespace globally, type: |
30d0ade9 | 154 | ;; |
c9dff4e3 | 155 | ;; C-u 1 M-x global-whitespace-mode RET |
30d0ade9 | 156 | ;; |
c9dff4e3 | 157 | ;; + To deactivate whitespace globally, type: |
30d0ade9 | 158 | ;; |
c9dff4e3 | 159 | ;; C-u 0 M-x global-whitespace-mode RET |
30d0ade9 | 160 | ;; |
c9dff4e3 | 161 | ;; + To toggle whitespace globally, type: |
30d0ade9 | 162 | ;; |
c9dff4e3 | 163 | ;; M-x global-whitespace-mode RET |
30d0ade9 | 164 | ;; |
97a739d5 VJL |
165 | ;; There are also the following useful commands: |
166 | ;; | |
8b40bb55 | 167 | ;; `whitespace-newline-mode' |
37269466 | 168 | ;; Toggle NEWLINE minor mode visualization ("nl" on mode line). |
8b40bb55 VJL |
169 | ;; |
170 | ;; `global-whitespace-newline-mode' | |
37269466 | 171 | ;; Toggle NEWLINE global minor mode visualization ("NL" on mode line). |
8b40bb55 | 172 | ;; |
94dc593f VJL |
173 | ;; `whitespace-report' |
174 | ;; Report some blank problems in buffer. | |
175 | ;; | |
176 | ;; `whitespace-report-region' | |
177 | ;; Report some blank problems in a region. | |
178 | ;; | |
c9dff4e3 | 179 | ;; `whitespace-cleanup' |
97a739d5 VJL |
180 | ;; Cleanup some blank problems in all buffer or at region. |
181 | ;; | |
c9dff4e3 | 182 | ;; `whitespace-cleanup-region' |
97a739d5 VJL |
183 | ;; Cleanup some blank problems at region. |
184 | ;; | |
185 | ;; The problems, which are cleaned up, are: | |
186 | ;; | |
187 | ;; 1. empty lines at beginning of buffer. | |
188 | ;; 2. empty lines at end of buffer. | |
ae68f2d8 VJL |
189 | ;; If `whitespace-style' includes the value `empty', remove all |
190 | ;; empty lines at beginning and/or end of buffer. | |
97a739d5 VJL |
191 | ;; |
192 | ;; 3. 8 or more SPACEs at beginning of line. | |
ae68f2d8 | 193 | ;; If `whitespace-style' includes the value `indentation': |
55d1cfe8 VJL |
194 | ;; replace 8 or more SPACEs at beginning of line by TABs, if |
195 | ;; `indent-tabs-mode' is non-nil; otherwise, replace TABs by | |
196 | ;; SPACEs. | |
ae68f2d8 VJL |
197 | ;; If `whitespace-style' includes the value `indentation::tab', |
198 | ;; replace 8 or more SPACEs at beginning of line by TABs. | |
199 | ;; If `whitespace-style' includes the value `indentation::space', | |
200 | ;; replace TABs by SPACEs. | |
97a739d5 VJL |
201 | ;; |
202 | ;; 4. SPACEs before TAB. | |
ae68f2d8 VJL |
203 | ;; If `whitespace-style' includes the value `space-before-tab': |
204 | ;; replace SPACEs by TABs, if `indent-tabs-mode' is non-nil; | |
205 | ;; otherwise, replace TABs by SPACEs. | |
206 | ;; If `whitespace-style' includes the value | |
55d1cfe8 | 207 | ;; `space-before-tab::tab', replace SPACEs by TABs. |
ae68f2d8 | 208 | ;; If `whitespace-style' includes the value |
55d1cfe8 | 209 | ;; `space-before-tab::space', replace TABs by SPACEs. |
97a739d5 VJL |
210 | ;; |
211 | ;; 5. SPACEs or TABs at end of line. | |
ae68f2d8 VJL |
212 | ;; If `whitespace-style' includes the value `trailing', remove all |
213 | ;; SPACEs or TABs at end of line. | |
97a739d5 VJL |
214 | ;; |
215 | ;; 6. 8 or more SPACEs after TAB. | |
ae68f2d8 VJL |
216 | ;; If `whitespace-style' includes the value `space-after-tab': |
217 | ;; replace SPACEs by TABs, if `indent-tabs-mode' is non-nil; | |
218 | ;; otherwise, replace TABs by SPACEs. | |
219 | ;; If `whitespace-style' includes the value `space-after-tab::tab', | |
220 | ;; replace SPACEs by TABs. | |
221 | ;; If `whitespace-style' includes the value | |
55d1cfe8 | 222 | ;; `space-after-tab::space', replace TABs by SPACEs. |
97a739d5 | 223 | ;; |
30d0ade9 VJL |
224 | ;; |
225 | ;; Hooks | |
226 | ;; ----- | |
227 | ;; | |
c9dff4e3 | 228 | ;; whitespace has the following hook variables: |
30d0ade9 | 229 | ;; |
c9dff4e3 VJL |
230 | ;; `whitespace-mode-hook' |
231 | ;; It is evaluated always when whitespace is turned on locally. | |
30d0ade9 | 232 | ;; |
c9dff4e3 VJL |
233 | ;; `global-whitespace-mode-hook' |
234 | ;; It is evaluated always when whitespace is turned on globally. | |
30d0ade9 | 235 | ;; |
c9dff4e3 VJL |
236 | ;; `whitespace-load-hook' |
237 | ;; It is evaluated after whitespace package is loaded. | |
30d0ade9 VJL |
238 | ;; |
239 | ;; | |
240 | ;; Options | |
241 | ;; ------- | |
242 | ;; | |
c9dff4e3 | 243 | ;; Below it's shown a brief description of whitespace options, please, |
30d0ade9 VJL |
244 | ;; see the options declaration in the code for a long documentation. |
245 | ;; | |
ae68f2d8 VJL |
246 | ;; `whitespace-style' Specify which kind of blank is |
247 | ;; visualized. | |
30d0ade9 | 248 | ;; |
c9dff4e3 | 249 | ;; `whitespace-space' Face used to visualize SPACE. |
30d0ade9 | 250 | ;; |
c9dff4e3 | 251 | ;; `whitespace-hspace' Face used to visualize HARD SPACE. |
30d0ade9 | 252 | ;; |
c9dff4e3 | 253 | ;; `whitespace-tab' Face used to visualize TAB. |
30d0ade9 | 254 | ;; |
c9dff4e3 | 255 | ;; `whitespace-newline' Face used to visualize NEWLINE char |
30d0ade9 VJL |
256 | ;; mapping. |
257 | ;; | |
c9dff4e3 | 258 | ;; `whitespace-trailing' Face used to visualize trailing |
30d0ade9 VJL |
259 | ;; blanks. |
260 | ;; | |
c9dff4e3 | 261 | ;; `whitespace-line' Face used to visualize "long" lines. |
30d0ade9 | 262 | ;; |
c9dff4e3 VJL |
263 | ;; `whitespace-space-before-tab' Face used to visualize SPACEs |
264 | ;; before TAB. | |
30d0ade9 | 265 | ;; |
c9dff4e3 | 266 | ;; `whitespace-indentation' Face used to visualize 8 or more |
97a739d5 VJL |
267 | ;; SPACEs at beginning of line. |
268 | ;; | |
c9dff4e3 | 269 | ;; `whitespace-empty' Face used to visualize empty lines at |
97a739d5 VJL |
270 | ;; beginning and/or end of buffer. |
271 | ;; | |
c9dff4e3 | 272 | ;; `whitespace-space-after-tab' Face used to visualize 8 or more |
97a739d5 VJL |
273 | ;; SPACEs after TAB. |
274 | ;; | |
c9dff4e3 | 275 | ;; `whitespace-space-regexp' Specify SPACE characters regexp. |
30d0ade9 | 276 | ;; |
c9dff4e3 | 277 | ;; `whitespace-hspace-regexp' Specify HARD SPACE characters regexp. |
30d0ade9 | 278 | ;; |
c9dff4e3 | 279 | ;; `whitespace-tab-regexp' Specify TAB characters regexp. |
30d0ade9 | 280 | ;; |
c9dff4e3 | 281 | ;; `whitespace-trailing-regexp' Specify trailing characters regexp. |
30d0ade9 | 282 | ;; |
c9dff4e3 | 283 | ;; `whitespace-space-before-tab-regexp' Specify SPACEs before TAB |
30d0ade9 VJL |
284 | ;; regexp. |
285 | ;; | |
c9dff4e3 VJL |
286 | ;; `whitespace-indentation-regexp' Specify regexp for 8 or more |
287 | ;; SPACEs at beginning of line. | |
97a739d5 | 288 | ;; |
c9dff4e3 VJL |
289 | ;; `whitespace-empty-at-bob-regexp' Specify regexp for empty lines |
290 | ;; at beginning of buffer. | |
97a739d5 | 291 | ;; |
c9dff4e3 VJL |
292 | ;; `whitespace-empty-at-eob-regexp' Specify regexp for empty lines |
293 | ;; at end of buffer. | |
97a739d5 | 294 | ;; |
c9dff4e3 | 295 | ;; `whitespace-space-after-tab-regexp' Specify regexp for 8 or more |
97a739d5 VJL |
296 | ;; SPACEs after TAB. |
297 | ;; | |
c9dff4e3 | 298 | ;; `whitespace-line-column' Specify column beyond which the line |
30d0ade9 VJL |
299 | ;; is highlighted. |
300 | ;; | |
c9dff4e3 VJL |
301 | ;; `whitespace-display-mappings' Specify an alist of mappings |
302 | ;; for displaying characters. | |
30d0ade9 | 303 | ;; |
4a4b61e2 VJL |
304 | ;; `whitespace-global-modes' Modes for which global |
305 | ;; `whitespace-mode' is automagically | |
306 | ;; turned on. | |
30d0ade9 | 307 | ;; |
94dc593f | 308 | ;; `whitespace-action' Specify which action is taken when a |
97f6e1ad | 309 | ;; buffer is visited or written. |
94dc593f | 310 | ;; |
30d0ade9 | 311 | ;; |
09ae5da1 PE |
312 | ;; Acknowledgments |
313 | ;; --------------- | |
30d0ade9 | 314 | ;; |
cb79b8c0 VJL |
315 | ;; Thanks to felix (EmacsWiki) for keeping highlight when switching between |
316 | ;; major modes on a file. | |
317 | ;; | |
24deb97d VJL |
318 | ;; Thanks to David Reitter <david.reitter@gmail.com> for suggesting a |
319 | ;; `whitespace-newline' initialization with low contrast relative to | |
320 | ;; the background color. | |
321 | ;; | |
55d1cfe8 VJL |
322 | ;; Thanks to Stephen Deasey <sdeasey@gmail.com> for the |
323 | ;; `indent-tabs-mode' usage suggestion. | |
324 | ;; | |
325 | ;; Thanks to Eric Cooper <ecc@cmu.edu> for the suggestion to have hook | |
97f6e1ad VJL |
326 | ;; actions when buffer is written as the original whitespace package |
327 | ;; had. | |
94dc593f | 328 | ;; |
9f3b76d5 VJL |
329 | ;; Thanks to nschum (EmacsWiki) for the idea about highlight "long" |
330 | ;; lines tail. See EightyColumnRule (EmacsWiki). | |
331 | ;; | |
30d0ade9 VJL |
332 | ;; Thanks to Juri Linkov <juri@jurta.org> for suggesting: |
333 | ;; * `define-minor-mode'. | |
c9dff4e3 | 334 | ;; * `global-whitespace-*' name for global commands. |
30d0ade9 VJL |
335 | ;; |
336 | ;; Thanks to Robert J. Chassell <bob@gnu.org> for doc fix and testing. | |
337 | ;; | |
338 | ;; Thanks to Drew Adams <drew.adams@oracle.com> for toggle commands | |
339 | ;; suggestion. | |
340 | ;; | |
341 | ;; Thanks to Antti Kaihola <antti.kaihola@linux-aktivaattori.org> for | |
342 | ;; helping to fix `find-file-hooks' reference. | |
343 | ;; | |
344 | ;; Thanks to Andreas Roehler <andreas.roehler@easy-emacs.de> for | |
345 | ;; indicating defface byte-compilation warnings. | |
346 | ;; | |
347 | ;; Thanks to TimOCallaghan (EmacsWiki) for the idea about highlight | |
9f3b76d5 | 348 | ;; "long" lines. See EightyColumnRule (EmacsWiki). |
30d0ade9 VJL |
349 | ;; |
350 | ;; Thanks to Yanghui Bian <yanghuibian@gmail.com> for indicating a new | |
cd222e44 | 351 | ;; NEWLINE character mapping. |
30d0ade9 VJL |
352 | ;; |
353 | ;; Thanks to Pete Forman <pete.forman@westgeo.com> for indicating | |
c9dff4e3 | 354 | ;; whitespace-mode.el on XEmacs. |
30d0ade9 VJL |
355 | ;; |
356 | ;; Thanks to Miles Bader <miles@gnu.org> for handling display table via | |
357 | ;; visws.el (his code was modified, but the main idea was kept). | |
358 | ;; | |
359 | ;; Thanks to: | |
c9dff4e3 | 360 | ;; Rajesh Vaidheeswarran <rv@gnu.org> (original) whitespace.el |
30d0ade9 VJL |
361 | ;; Aurelien Tisne <aurelien.tisne@free.fr> show-whitespace-mode.el |
362 | ;; Lawrence Mitchell <wence@gmx.li> whitespace-mode.el | |
363 | ;; Miles Bader <miles@gnu.org> visws.el | |
364 | ;; And to all people who contributed with them. | |
365 | ;; | |
366 | ;; | |
367 | ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
368 | ||
369 | ;;; code: | |
370 | ||
371 | \f | |
372 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
373 | ;;;; User Variables: | |
374 | ||
375 | ||
376 | ;;; Interface to the command system | |
377 | ||
378 | ||
c9dff4e3 | 379 | (defgroup whitespace nil |
040f578c | 380 | "Visualize blanks (TAB, (HARD) SPACE and NEWLINE)." |
c9dff4e3 | 381 | :link '(emacs-library-link :tag "Source Lisp File" "whitespace.el") |
b502217b | 382 | :version "23.1" |
eba5b4dd | 383 | :group 'convenience) |
30d0ade9 VJL |
384 | |
385 | ||
ae68f2d8 | 386 | (defcustom whitespace-style |
85cc3d4f VJL |
387 | '(face |
388 | tabs spaces trailing lines space-before-tab newline | |
389 | indentation empty space-after-tab | |
390 | space-mark tab-mark newline-mark) | |
9201cc28 | 391 | "Specify which kind of blank is visualized. |
30d0ade9 | 392 | |
b502217b | 393 | It's a list containing some or all of the following values: |
30d0ade9 | 394 | |
85cc3d4f VJL |
395 | face enable all visualization via faces (see below). |
396 | ||
ae68f2d8 | 397 | trailing trailing blanks are visualized via faces. |
85cc3d4f VJL |
398 | It has effect only if `face' (see above) |
399 | is present in `whitespace-style'. | |
30d0ade9 | 400 | |
ae68f2d8 | 401 | tabs TABs are visualized via faces. |
85cc3d4f VJL |
402 | It has effect only if `face' (see above) |
403 | is present in `whitespace-style'. | |
30d0ade9 | 404 | |
ae68f2d8 VJL |
405 | spaces SPACEs and HARD SPACEs are visualized via |
406 | faces. | |
85cc3d4f VJL |
407 | It has effect only if `face' (see above) |
408 | is present in `whitespace-style'. | |
30d0ade9 | 409 | |
db9e401b | 410 | lines lines which have columns beyond |
ae68f2d8 | 411 | `whitespace-line-column' are highlighted via |
db9e401b | 412 | faces. |
9f3b76d5 | 413 | Whole line is highlighted. |
ae68f2d8 VJL |
414 | It has precedence over `lines-tail' (see |
415 | below). | |
85cc3d4f VJL |
416 | It has effect only if `face' (see above) |
417 | is present in `whitespace-style'. | |
9f3b76d5 | 418 | |
db9e401b | 419 | lines-tail lines which have columns beyond |
ae68f2d8 VJL |
420 | `whitespace-line-column' are highlighted via |
421 | faces. | |
9f3b76d5 | 422 | But only the part of line which goes |
c9dff4e3 | 423 | beyond `whitespace-line-column' column. |
9f3b76d5 | 424 | It has effect only if `lines' (see above) |
85cc3d4f VJL |
425 | is not present in `whitespace-style' |
426 | and if `face' (see above) is present in | |
427 | `whitespace-style'. | |
30d0ade9 | 428 | |
ae68f2d8 | 429 | newline NEWLINEs are visualized via faces. |
85cc3d4f VJL |
430 | It has effect only if `face' (see above) |
431 | is present in `whitespace-style'. | |
30d0ade9 | 432 | |
97a739d5 | 433 | empty empty lines at beginning and/or end of buffer |
ae68f2d8 | 434 | are visualized via faces. |
85cc3d4f VJL |
435 | It has effect only if `face' (see above) |
436 | is present in `whitespace-style'. | |
97a739d5 | 437 | |
55d1cfe8 | 438 | indentation::tab 8 or more SPACEs at beginning of line are |
ae68f2d8 | 439 | visualized via faces. |
85cc3d4f VJL |
440 | It has effect only if `face' (see above) |
441 | is present in `whitespace-style'. | |
55d1cfe8 | 442 | |
ae68f2d8 VJL |
443 | indentation::space TABs at beginning of line are visualized via |
444 | faces. | |
85cc3d4f VJL |
445 | It has effect only if `face' (see above) |
446 | is present in `whitespace-style'. | |
97a739d5 | 447 | |
55d1cfe8 VJL |
448 | indentation 8 or more SPACEs at beginning of line are |
449 | visualized, if `indent-tabs-mode' (which see) | |
450 | is non-nil; otherwise, TABs at beginning of | |
ae68f2d8 | 451 | line are visualized via faces. |
85cc3d4f VJL |
452 | It has effect only if `face' (see above) |
453 | is present in `whitespace-style'. | |
55d1cfe8 VJL |
454 | |
455 | space-after-tab::tab 8 or more SPACEs after a TAB are | |
ae68f2d8 | 456 | visualized via faces. |
85cc3d4f VJL |
457 | It has effect only if `face' (see above) |
458 | is present in `whitespace-style'. | |
55d1cfe8 | 459 | |
f24b8bf3 CY |
460 | space-after-tab::space TABs are visualized when 8 or more |
461 | SPACEs occur after a TAB, via faces. | |
85cc3d4f VJL |
462 | It has effect only if `face' (see above) |
463 | is present in `whitespace-style'. | |
55d1cfe8 VJL |
464 | |
465 | space-after-tab 8 or more SPACEs after a TAB are | |
466 | visualized, if `indent-tabs-mode' | |
467 | (which see) is non-nil; otherwise, | |
ae68f2d8 | 468 | the TABs are visualized via faces. |
85cc3d4f VJL |
469 | It has effect only if `face' (see above) |
470 | is present in `whitespace-style'. | |
55d1cfe8 | 471 | |
ae68f2d8 VJL |
472 | space-before-tab::tab SPACEs before TAB are visualized via |
473 | faces. | |
85cc3d4f VJL |
474 | It has effect only if `face' (see above) |
475 | is present in `whitespace-style'. | |
30d0ade9 | 476 | |
f24b8bf3 CY |
477 | space-before-tab::space TABs are visualized when SPACEs occur |
478 | before TAB, via faces. | |
85cc3d4f VJL |
479 | It has effect only if `face' (see above) |
480 | is present in `whitespace-style'. | |
30d0ade9 | 481 | |
55d1cfe8 VJL |
482 | space-before-tab SPACEs before TAB are visualized, if |
483 | `indent-tabs-mode' (which see) is | |
484 | non-nil; otherwise, the TABs are | |
ae68f2d8 | 485 | visualized via faces. |
85cc3d4f VJL |
486 | It has effect only if `face' (see above) |
487 | is present in `whitespace-style'. | |
ae68f2d8 VJL |
488 | |
489 | space-mark SPACEs and HARD SPACEs are visualized via | |
490 | display table. | |
491 | ||
492 | tab-mark TABs are visualized via display table. | |
493 | ||
494 | newline-mark NEWLINEs are visualized via display table. | |
55d1cfe8 VJL |
495 | |
496 | Any other value is ignored. | |
497 | ||
ae68f2d8 VJL |
498 | If nil, don't visualize TABs, (HARD) SPACEs and NEWLINEs via faces and |
499 | via display table. | |
55d1cfe8 | 500 | |
db9e401b | 501 | There is an evaluation order for some values, if they are |
ae68f2d8 | 502 | included in `whitespace-style' list. For example, if |
55d1cfe8 | 503 | indentation, indentation::tab and/or indentation::space are |
ae68f2d8 VJL |
504 | included in `whitespace-style' list. The evaluation order for |
505 | these values is: | |
55d1cfe8 VJL |
506 | |
507 | * For indentation: | |
508 | 1. indentation | |
509 | 2. indentation::tab | |
510 | 3. indentation::space | |
511 | ||
512 | * For SPACEs after TABs: | |
513 | 1. space-after-tab | |
514 | 2. space-after-tab::tab | |
515 | 3. space-after-tab::space | |
516 | ||
517 | * For SPACEs before TABs: | |
518 | 1. space-before-tab | |
519 | 2. space-before-tab::tab | |
520 | 3. space-before-tab::space | |
521 | ||
522 | So, for example, if indentation and indentation::space are | |
ae68f2d8 VJL |
523 | included in `whitespace-style' list, the indentation value is |
524 | evaluated instead of indentation::space value. | |
525 | ||
85cc3d4f VJL |
526 | One reason for not visualize spaces via faces (if `face' is not |
527 | included in `whitespace-style') is to use exclusively for | |
da6062e6 | 528 | cleaning up a buffer. See `whitespace-cleanup' and |
85cc3d4f VJL |
529 | `whitespace-cleanup-region' for documentation. |
530 | ||
ae68f2d8 VJL |
531 | See also `whitespace-display-mappings' for documentation." |
532 | :type '(repeat :tag "Kind of Blank" | |
55d1cfe8 | 533 | (choice :tag "Kind of Blank Face" |
1a868076 VJL |
534 | (const :tag "(Face) Face visualization" |
535 | face) | |
ae68f2d8 | 536 | (const :tag "(Face) Trailing TABs, SPACEs and HARD SPACEs" |
30d0ade9 | 537 | trailing) |
ae68f2d8 VJL |
538 | (const :tag "(Face) SPACEs and HARD SPACEs" |
539 | spaces) | |
540 | (const :tag "(Face) TABs" tabs) | |
541 | (const :tag "(Face) Lines" lines) | |
542 | (const :tag "(Face) SPACEs before TAB" | |
30d0ade9 | 543 | space-before-tab) |
ae68f2d8 VJL |
544 | (const :tag "(Face) NEWLINEs" newline) |
545 | (const :tag "(Face) Indentation SPACEs" | |
546 | indentation) | |
547 | (const :tag "(Face) Empty Lines At BOB And/Or EOB" | |
97a739d5 | 548 | empty) |
ae68f2d8 VJL |
549 | (const :tag "(Face) SPACEs after TAB" |
550 | space-after-tab) | |
551 | (const :tag "(Mark) SPACEs and HARD SPACEs" | |
552 | space-mark) | |
553 | (const :tag "(Mark) TABs" tab-mark) | |
554 | (const :tag "(Mark) NEWLINEs" newline-mark))) | |
c9dff4e3 | 555 | :group 'whitespace) |
30d0ade9 VJL |
556 | |
557 | ||
c9dff4e3 | 558 | (defcustom whitespace-space 'whitespace-space |
9201cc28 | 559 | "Symbol face used to visualize SPACE. |
30d0ade9 | 560 | |
ae68f2d8 | 561 | Used when `whitespace-style' includes the value `spaces'." |
30d0ade9 | 562 | :type 'face |
c9dff4e3 | 563 | :group 'whitespace) |
30d0ade9 VJL |
564 | |
565 | ||
c9dff4e3 | 566 | (defface whitespace-space |
30d0ade9 | 567 | '((((class color) (background dark)) |
4b56d0fe | 568 | :background "grey20" :foreground "darkgray") |
30d0ade9 | 569 | (((class color) (background light)) |
4b56d0fe CY |
570 | :background "LightYellow" :foreground "lightgray") |
571 | (t :inverse-video t)) | |
040f578c | 572 | "Face used to visualize SPACE." |
c9dff4e3 | 573 | :group 'whitespace) |
30d0ade9 VJL |
574 | |
575 | ||
c9dff4e3 | 576 | (defcustom whitespace-hspace 'whitespace-hspace |
9201cc28 | 577 | "Symbol face used to visualize HARD SPACE. |
30d0ade9 | 578 | |
ae68f2d8 | 579 | Used when `whitespace-style' includes the value `spaces'." |
30d0ade9 | 580 | :type 'face |
c9dff4e3 | 581 | :group 'whitespace) |
30d0ade9 VJL |
582 | |
583 | ||
c9dff4e3 | 584 | (defface whitespace-hspace ; 'nobreak-space |
30d0ade9 | 585 | '((((class color) (background dark)) |
4b56d0fe | 586 | :background "grey24" :foreground "darkgray") |
30d0ade9 | 587 | (((class color) (background light)) |
4b56d0fe CY |
588 | :background "LemonChiffon3" :foreground "lightgray") |
589 | (t :inverse-video t)) | |
040f578c | 590 | "Face used to visualize HARD SPACE." |
c9dff4e3 | 591 | :group 'whitespace) |
30d0ade9 VJL |
592 | |
593 | ||
c9dff4e3 | 594 | (defcustom whitespace-tab 'whitespace-tab |
9201cc28 | 595 | "Symbol face used to visualize TAB. |
30d0ade9 | 596 | |
ae68f2d8 | 597 | Used when `whitespace-style' includes the value `tabs'." |
30d0ade9 | 598 | :type 'face |
c9dff4e3 | 599 | :group 'whitespace) |
30d0ade9 VJL |
600 | |
601 | ||
c9dff4e3 | 602 | (defface whitespace-tab |
30d0ade9 | 603 | '((((class color) (background dark)) |
4b56d0fe | 604 | :background "grey22" :foreground "darkgray") |
30d0ade9 | 605 | (((class color) (background light)) |
4b56d0fe CY |
606 | :background "beige" :foreground "lightgray") |
607 | (t :inverse-video t)) | |
040f578c | 608 | "Face used to visualize TAB." |
c9dff4e3 | 609 | :group 'whitespace) |
30d0ade9 VJL |
610 | |
611 | ||
c9dff4e3 | 612 | (defcustom whitespace-newline 'whitespace-newline |
9201cc28 | 613 | "Symbol face used to visualize NEWLINE char mapping. |
30d0ade9 | 614 | |
c9dff4e3 | 615 | See `whitespace-display-mappings'. |
30d0ade9 | 616 | |
ae68f2d8 VJL |
617 | Used when `whitespace-style' includes the values `newline-mark' |
618 | and `newline'." | |
30d0ade9 | 619 | :type 'face |
c9dff4e3 | 620 | :group 'whitespace) |
30d0ade9 VJL |
621 | |
622 | ||
c9dff4e3 | 623 | (defface whitespace-newline |
4b56d0fe CY |
624 | '((default :weight normal) |
625 | (((class color) (background dark)) :foreground "darkgray") | |
626 | (((class color) (min-colors 88) (background light)) :foreground "lightgray") | |
00db469c EZ |
627 | ;; Displays with 16 colors use lightgray as background, so using a |
628 | ;; lightgray foreground makes the newline mark invisible. | |
4b56d0fe CY |
629 | (((class color) (background light)) :foreground "brown") |
630 | (t :underline t)) | |
040f578c | 631 | "Face used to visualize NEWLINE char mapping. |
30d0ade9 | 632 | |
c9dff4e3 VJL |
633 | See `whitespace-display-mappings'." |
634 | :group 'whitespace) | |
30d0ade9 VJL |
635 | |
636 | ||
c9dff4e3 | 637 | (defcustom whitespace-trailing 'whitespace-trailing |
9201cc28 | 638 | "Symbol face used to visualize trailing blanks. |
30d0ade9 | 639 | |
ae68f2d8 | 640 | Used when `whitespace-style' includes the value `trailing'." |
30d0ade9 | 641 | :type 'face |
c9dff4e3 | 642 | :group 'whitespace) |
30d0ade9 VJL |
643 | |
644 | ||
c9dff4e3 | 645 | (defface whitespace-trailing ; 'trailing-whitespace |
4b56d0fe CY |
646 | '((default :weight bold) |
647 | (((class mono)) :inverse-video t :underline t) | |
648 | (t :background "red1" :foreground "yellow")) | |
040f578c | 649 | "Face used to visualize trailing blanks." |
c9dff4e3 | 650 | :group 'whitespace) |
30d0ade9 VJL |
651 | |
652 | ||
c9dff4e3 | 653 | (defcustom whitespace-line 'whitespace-line |
9201cc28 | 654 | "Symbol face used to visualize \"long\" lines. |
30d0ade9 | 655 | |
c9dff4e3 | 656 | See `whitespace-line-column'. |
30d0ade9 | 657 | |
ae68f2d8 | 658 | Used when `whitespace-style' includes the value `line'." |
30d0ade9 | 659 | :type 'face |
c9dff4e3 | 660 | :group 'whitespace) |
30d0ade9 VJL |
661 | |
662 | ||
c9dff4e3 | 663 | (defface whitespace-line |
4b56d0fe CY |
664 | '((((class mono)) :inverse-video t :weight bold :underline t) |
665 | (t :background "gray20" :foreground "violet")) | |
040f578c | 666 | "Face used to visualize \"long\" lines. |
30d0ade9 | 667 | |
c9dff4e3 VJL |
668 | See `whitespace-line-column'." |
669 | :group 'whitespace) | |
30d0ade9 VJL |
670 | |
671 | ||
c9dff4e3 | 672 | (defcustom whitespace-space-before-tab 'whitespace-space-before-tab |
9201cc28 | 673 | "Symbol face used to visualize SPACEs before TAB. |
30d0ade9 | 674 | |
ae68f2d8 | 675 | Used when `whitespace-style' includes the value `space-before-tab'." |
30d0ade9 | 676 | :type 'face |
c9dff4e3 | 677 | :group 'whitespace) |
30d0ade9 VJL |
678 | |
679 | ||
c9dff4e3 | 680 | (defface whitespace-space-before-tab |
4b56d0fe CY |
681 | '((((class mono)) :inverse-video t :weight bold :underline t) |
682 | (t :background "DarkOrange" :foreground "firebrick")) | |
040f578c | 683 | "Face used to visualize SPACEs before TAB." |
c9dff4e3 | 684 | :group 'whitespace) |
30d0ade9 VJL |
685 | |
686 | ||
c9dff4e3 | 687 | (defcustom whitespace-indentation 'whitespace-indentation |
9201cc28 | 688 | "Symbol face used to visualize 8 or more SPACEs at beginning of line. |
97a739d5 | 689 | |
ae68f2d8 | 690 | Used when `whitespace-style' includes the value `indentation'." |
97a739d5 | 691 | :type 'face |
c9dff4e3 | 692 | :group 'whitespace) |
97a739d5 VJL |
693 | |
694 | ||
c9dff4e3 | 695 | (defface whitespace-indentation |
4b56d0fe CY |
696 | '((((class mono)) :inverse-video t :weight bold :underline t) |
697 | (t :background "yellow" :foreground "firebrick")) | |
97a739d5 | 698 | "Face used to visualize 8 or more SPACEs at beginning of line." |
c9dff4e3 | 699 | :group 'whitespace) |
97a739d5 VJL |
700 | |
701 | ||
c9dff4e3 | 702 | (defcustom whitespace-empty 'whitespace-empty |
9201cc28 | 703 | "Symbol face used to visualize empty lines at beginning and/or end of buffer. |
97a739d5 | 704 | |
ae68f2d8 | 705 | Used when `whitespace-style' includes the value `empty'." |
97a739d5 | 706 | :type 'face |
c9dff4e3 | 707 | :group 'whitespace) |
97a739d5 VJL |
708 | |
709 | ||
c9dff4e3 | 710 | (defface whitespace-empty |
4b56d0fe CY |
711 | '((((class mono)) :inverse-video t :weight bold :underline t) |
712 | (t :background "yellow" :foreground "firebrick")) | |
97a739d5 | 713 | "Face used to visualize empty lines at beginning and/or end of buffer." |
c9dff4e3 | 714 | :group 'whitespace) |
97a739d5 VJL |
715 | |
716 | ||
c9dff4e3 | 717 | (defcustom whitespace-space-after-tab 'whitespace-space-after-tab |
9201cc28 | 718 | "Symbol face used to visualize 8 or more SPACEs after TAB. |
97a739d5 | 719 | |
ae68f2d8 | 720 | Used when `whitespace-style' includes the value `space-after-tab'." |
97a739d5 | 721 | :type 'face |
c9dff4e3 | 722 | :group 'whitespace) |
97a739d5 VJL |
723 | |
724 | ||
c9dff4e3 | 725 | (defface whitespace-space-after-tab |
4b56d0fe CY |
726 | '((((class mono)) :inverse-video t :weight bold :underline t) |
727 | (t :background "yellow" :foreground "firebrick")) | |
97a739d5 | 728 | "Face used to visualize 8 or more SPACEs after TAB." |
c9dff4e3 | 729 | :group 'whitespace) |
97a739d5 VJL |
730 | |
731 | ||
c9dff4e3 | 732 | (defcustom whitespace-hspace-regexp |
30d0ade9 | 733 | "\\(\\(\xA0\\|\x8A0\\|\x920\\|\xE20\\|\xF20\\)+\\)" |
9201cc28 | 734 | "Specify HARD SPACE characters regexp. |
30d0ade9 | 735 | |
b502217b | 736 | If you're using `mule' package, there may be other characters besides: |
30d0ade9 VJL |
737 | |
738 | \"\\xA0\" \"\\x8A0\" \"\\x920\" \"\\xE20\" \"\\xF20\" | |
739 | ||
040f578c | 740 | that should be considered HARD SPACE. |
30d0ade9 VJL |
741 | |
742 | Here are some examples: | |
743 | ||
744 | \"\\\\(^\\xA0+\\\\)\" \ | |
040f578c | 745 | visualize only leading HARD SPACEs. |
30d0ade9 | 746 | \"\\\\(\\xA0+$\\\\)\" \ |
040f578c | 747 | visualize only trailing HARD SPACEs. |
30d0ade9 | 748 | \"\\\\(^\\xA0+\\\\|\\xA0+$\\\\)\" \ |
040f578c | 749 | visualize leading and/or trailing HARD SPACEs. |
30d0ade9 | 750 | \"\\t\\\\(\\xA0+\\\\)\\t\" \ |
040f578c | 751 | visualize only HARD SPACEs between TABs. |
30d0ade9 VJL |
752 | |
753 | NOTE: Enclose always by \\\\( and \\\\) the elements to highlight. | |
754 | Use exactly one pair of enclosing \\\\( and \\\\). | |
755 | ||
ae68f2d8 | 756 | Used when `whitespace-style' includes `spaces'." |
30d0ade9 | 757 | :type '(regexp :tag "HARD SPACE Chars") |
c9dff4e3 | 758 | :group 'whitespace) |
30d0ade9 VJL |
759 | |
760 | ||
c9dff4e3 | 761 | (defcustom whitespace-space-regexp "\\( +\\)" |
9201cc28 | 762 | "Specify SPACE characters regexp. |
30d0ade9 | 763 | |
b502217b | 764 | If you're using `mule' package, there may be other characters |
040f578c | 765 | besides \" \" that should be considered SPACE. |
30d0ade9 VJL |
766 | |
767 | Here are some examples: | |
768 | ||
040f578c VJL |
769 | \"\\\\(^ +\\\\)\" visualize only leading SPACEs. |
770 | \"\\\\( +$\\\\)\" visualize only trailing SPACEs. | |
30d0ade9 | 771 | \"\\\\(^ +\\\\| +$\\\\)\" \ |
040f578c VJL |
772 | visualize leading and/or trailing SPACEs. |
773 | \"\\t\\\\( +\\\\)\\t\" visualize only SPACEs between TABs. | |
30d0ade9 VJL |
774 | |
775 | NOTE: Enclose always by \\\\( and \\\\) the elements to highlight. | |
776 | Use exactly one pair of enclosing \\\\( and \\\\). | |
777 | ||
ae68f2d8 | 778 | Used when `whitespace-style' includes `spaces'." |
30d0ade9 | 779 | :type '(regexp :tag "SPACE Chars") |
c9dff4e3 | 780 | :group 'whitespace) |
30d0ade9 VJL |
781 | |
782 | ||
c9dff4e3 | 783 | (defcustom whitespace-tab-regexp "\\(\t+\\)" |
9201cc28 | 784 | "Specify TAB characters regexp. |
30d0ade9 | 785 | |
b502217b | 786 | If you're using `mule' package, there may be other characters |
040f578c | 787 | besides \"\\t\" that should be considered TAB. |
30d0ade9 VJL |
788 | |
789 | Here are some examples: | |
790 | ||
040f578c VJL |
791 | \"\\\\(^\\t+\\\\)\" visualize only leading TABs. |
792 | \"\\\\(\\t+$\\\\)\" visualize only trailing TABs. | |
30d0ade9 | 793 | \"\\\\(^\\t+\\\\|\\t+$\\\\)\" \ |
040f578c VJL |
794 | visualize leading and/or trailing TABs. |
795 | \" \\\\(\\t+\\\\) \" visualize only TABs between SPACEs. | |
30d0ade9 VJL |
796 | |
797 | NOTE: Enclose always by \\\\( and \\\\) the elements to highlight. | |
798 | Use exactly one pair of enclosing \\\\( and \\\\). | |
799 | ||
ae68f2d8 | 800 | Used when `whitespace-style' includes `tabs'." |
30d0ade9 | 801 | :type '(regexp :tag "TAB Chars") |
c9dff4e3 | 802 | :group 'whitespace) |
30d0ade9 VJL |
803 | |
804 | ||
c9dff4e3 | 805 | (defcustom whitespace-trailing-regexp |
dd5a5ee0 | 806 | "\\([\t \u00A0]+\\)$" |
9201cc28 | 807 | "Specify trailing characters regexp. |
30d0ade9 | 808 | |
b502217b | 809 | If you're using `mule' package, there may be other characters besides: |
30d0ade9 | 810 | |
dd5a5ee0 | 811 | \" \" \"\\t\" \"\\u00A0\" |
30d0ade9 | 812 | |
040f578c | 813 | that should be considered blank. |
30d0ade9 | 814 | |
385da4e7 | 815 | NOTE: Enclose always by \"\\\\(\" and \"\\\\)$\" the elements to highlight. |
2788143d | 816 | Use exactly one pair of enclosing elements above. |
30d0ade9 | 817 | |
ae68f2d8 | 818 | Used when `whitespace-style' includes `trailing'." |
30d0ade9 | 819 | :type '(regexp :tag "Trailing Chars") |
c9dff4e3 | 820 | :group 'whitespace) |
30d0ade9 VJL |
821 | |
822 | ||
55d1cfe8 | 823 | (defcustom whitespace-space-before-tab-regexp "\\( +\\)\\(\t+\\)" |
9201cc28 | 824 | "Specify SPACEs before TAB regexp. |
30d0ade9 | 825 | |
b502217b | 826 | If you're using `mule' package, there may be other characters besides: |
30d0ade9 VJL |
827 | |
828 | \" \" \"\\t\" \"\\xA0\" \"\\x8A0\" \"\\x920\" \"\\xE20\" \ | |
829 | \"\\xF20\" | |
830 | ||
040f578c | 831 | that should be considered blank. |
30d0ade9 | 832 | |
ae68f2d8 | 833 | Used when `whitespace-style' includes `space-before-tab', |
55d1cfe8 | 834 | `space-before-tab::tab' or `space-before-tab::space'." |
30d0ade9 | 835 | :type '(regexp :tag "SPACEs Before TAB") |
c9dff4e3 | 836 | :group 'whitespace) |
30d0ade9 VJL |
837 | |
838 | ||
c9dff4e3 | 839 | (defcustom whitespace-indentation-regexp |
55d1cfe8 VJL |
840 | '("^\t*\\(\\( \\{%d\\}\\)+\\)[^\n\t]" |
841 | . "^ *\\(\t+\\)[^\n]") | |
9201cc28 | 842 | "Specify regexp for 8 or more SPACEs at beginning of line. |
97a739d5 | 843 | |
55d1cfe8 VJL |
844 | It is a cons where the cons car is used for SPACEs visualization |
845 | and the cons cdr is used for TABs visualization. | |
846 | ||
b502217b | 847 | If you're using `mule' package, there may be other characters besides: |
97a739d5 VJL |
848 | |
849 | \" \" \"\\t\" \"\\xA0\" \"\\x8A0\" \"\\x920\" \"\\xE20\" \ | |
850 | \"\\xF20\" | |
851 | ||
852 | that should be considered blank. | |
853 | ||
ae68f2d8 | 854 | Used when `whitespace-style' includes `indentation', |
55d1cfe8 VJL |
855 | `indentation::tab' or `indentation::space'." |
856 | :type '(cons (regexp :tag "Indentation SPACEs") | |
857 | (regexp :tag "Indentation TABs")) | |
c9dff4e3 | 858 | :group 'whitespace) |
97a739d5 VJL |
859 | |
860 | ||
80525855 | 861 | (defcustom whitespace-empty-at-bob-regexp "^\\(\\([ \t]*\n\\)+\\)" |
9201cc28 | 862 | "Specify regexp for empty lines at beginning of buffer. |
97a739d5 | 863 | |
b502217b | 864 | If you're using `mule' package, there may be other characters besides: |
97a739d5 VJL |
865 | |
866 | \" \" \"\\t\" \"\\xA0\" \"\\x8A0\" \"\\x920\" \"\\xE20\" \ | |
867 | \"\\xF20\" | |
868 | ||
869 | that should be considered blank. | |
870 | ||
ae68f2d8 | 871 | Used when `whitespace-style' includes `empty'." |
97a739d5 | 872 | :type '(regexp :tag "Empty Lines At Beginning Of Buffer") |
c9dff4e3 | 873 | :group 'whitespace) |
97a739d5 VJL |
874 | |
875 | ||
80525855 | 876 | (defcustom whitespace-empty-at-eob-regexp "^\\([ \t\n]+\\)" |
9201cc28 | 877 | "Specify regexp for empty lines at end of buffer. |
97a739d5 | 878 | |
b502217b | 879 | If you're using `mule' package, there may be other characters besides: |
97a739d5 VJL |
880 | |
881 | \" \" \"\\t\" \"\\xA0\" \"\\x8A0\" \"\\x920\" \"\\xE20\" \ | |
882 | \"\\xF20\" | |
883 | ||
884 | that should be considered blank. | |
885 | ||
ae68f2d8 | 886 | Used when `whitespace-style' includes `empty'." |
97a739d5 | 887 | :type '(regexp :tag "Empty Lines At End Of Buffer") |
c9dff4e3 | 888 | :group 'whitespace) |
97a739d5 VJL |
889 | |
890 | ||
55d1cfe8 VJL |
891 | (defcustom whitespace-space-after-tab-regexp |
892 | '("\t+\\(\\( \\{%d\\}\\)+\\)" | |
893 | . "\\(\t+\\) +") | |
9201cc28 | 894 | "Specify regexp for 8 or more SPACEs after TAB. |
97a739d5 | 895 | |
55d1cfe8 VJL |
896 | It is a cons where the cons car is used for SPACEs visualization |
897 | and the cons cdr is used for TABs visualization. | |
898 | ||
b502217b | 899 | If you're using `mule' package, there may be other characters besides: |
97a739d5 VJL |
900 | |
901 | \" \" \"\\t\" \"\\xA0\" \"\\x8A0\" \"\\x920\" \"\\xE20\" \ | |
902 | \"\\xF20\" | |
903 | ||
904 | that should be considered blank. | |
905 | ||
ae68f2d8 | 906 | Used when `whitespace-style' includes `space-after-tab', |
55d1cfe8 | 907 | `space-after-tab::tab' or `space-after-tab::space'." |
97a739d5 | 908 | :type '(regexp :tag "SPACEs After TAB") |
c9dff4e3 | 909 | :group 'whitespace) |
97a739d5 VJL |
910 | |
911 | ||
c9dff4e3 | 912 | (defcustom whitespace-line-column 80 |
9201cc28 | 913 | "Specify column beyond which the line is highlighted. |
30d0ade9 | 914 | |
85cc3d4f VJL |
915 | It must be an integer or nil. If nil, the `fill-column' variable value is |
916 | used. | |
917 | ||
ae68f2d8 | 918 | Used when `whitespace-style' includes `lines' or `lines-tail'." |
85cc3d4f VJL |
919 | :type '(choice :tag "Line Length Limit" |
920 | (integer :tag "Line Length") | |
921 | (const :tag "Use fill-column" nil)) | |
c9dff4e3 | 922 | :group 'whitespace) |
30d0ade9 VJL |
923 | |
924 | ||
925 | ;; Hacked from `visible-whitespace-mappings' in visws.el | |
c9dff4e3 | 926 | (defcustom whitespace-display-mappings |
30d0ade9 | 927 | '( |
32a9841c VJL |
928 | (space-mark ?\ [?\u00B7] [?.]) ; space - centered dot |
929 | (space-mark ?\xA0 [?\u00A4] [?_]) ; hard space - currency | |
55d1cfe8 VJL |
930 | (space-mark ?\x8A0 [?\x8A4] [?_]) ; hard space - currency |
931 | (space-mark ?\x920 [?\x924] [?_]) ; hard space - currency | |
932 | (space-mark ?\xE20 [?\xE24] [?_]) ; hard space - currency | |
933 | (space-mark ?\xF20 [?\xF24] [?_]) ; hard space - currency | |
c9dff4e3 | 934 | ;; NEWLINE is displayed using the face `whitespace-newline' |
55d1cfe8 VJL |
935 | (newline-mark ?\n [?$ ?\n]) ; eol - dollar sign |
936 | ;; (newline-mark ?\n [?\u21B5 ?\n] [?$ ?\n]) ; eol - downwards arrow | |
32a9841c | 937 | ;; (newline-mark ?\n [?\u00B6 ?\n] [?$ ?\n]) ; eol - pilcrow |
55d1cfe8 VJL |
938 | ;; (newline-mark ?\n [?\x8AF ?\n] [?$ ?\n]) ; eol - overscore |
939 | ;; (newline-mark ?\n [?\x8AC ?\n] [?$ ?\n]) ; eol - negation | |
940 | ;; (newline-mark ?\n [?\x8B0 ?\n] [?$ ?\n]) ; eol - grade | |
30d0ade9 VJL |
941 | ;; |
942 | ;; WARNING: the mapping below has a problem. | |
943 | ;; When a TAB occupies exactly one column, it will display the | |
944 | ;; character ?\xBB at that column followed by a TAB which goes to | |
945 | ;; the next TAB column. | |
946 | ;; If this is a problem for you, please, comment the line below. | |
32a9841c | 947 | (tab-mark ?\t [?\u00BB ?\t] [?\\ ?\t]) ; tab - left quote mark |
30d0ade9 | 948 | ) |
9201cc28 | 949 | "Specify an alist of mappings for displaying characters. |
30d0ade9 VJL |
950 | |
951 | Each element has the following form: | |
952 | ||
55d1cfe8 | 953 | (KIND CHAR VECTOR...) |
30d0ade9 VJL |
954 | |
955 | Where: | |
956 | ||
55d1cfe8 VJL |
957 | KIND is the kind of character. |
958 | It can be one of the following symbols: | |
959 | ||
960 | tab-mark for TAB character | |
961 | ||
962 | space-mark for SPACE or HARD SPACE character | |
963 | ||
964 | newline-mark for NEWLINE character | |
965 | ||
30d0ade9 VJL |
966 | CHAR is the character to be mapped. |
967 | ||
968 | VECTOR is a vector of characters to be displayed in place of CHAR. | |
969 | The first display vector that can be displayed is used; | |
970 | if no display vector for a mapping can be displayed, then | |
971 | that character is displayed unmodified. | |
972 | ||
973 | The NEWLINE character is displayed using the face given by | |
55d1cfe8 | 974 | `whitespace-newline' variable. |
30d0ade9 | 975 | |
ae68f2d8 VJL |
976 | Used when `whitespace-style' includes `tab-mark', `space-mark' or |
977 | `newline-mark'." | |
30d0ade9 VJL |
978 | :type '(repeat |
979 | (list :tag "Character Mapping" | |
55d1cfe8 VJL |
980 | (choice :tag "Char Kind" |
981 | (const :tag "Tab" tab-mark) | |
982 | (const :tag "Space" space-mark) | |
983 | (const :tag "Newline" newline-mark)) | |
30d0ade9 VJL |
984 | (character :tag "Char") |
985 | (repeat :inline t :tag "Vector List" | |
986 | (vector :tag "" | |
987 | (repeat :inline t | |
988 | :tag "Vector Characters" | |
989 | (character :tag "Char")))))) | |
c9dff4e3 | 990 | :group 'whitespace) |
30d0ade9 VJL |
991 | |
992 | ||
c9dff4e3 | 993 | (defcustom whitespace-global-modes t |
9201cc28 | 994 | "Modes for which global `whitespace-mode' is automagically turned on. |
30d0ade9 | 995 | |
c9dff4e3 VJL |
996 | Global `whitespace-mode' is controlled by the command |
997 | `global-whitespace-mode'. | |
30d0ade9 | 998 | |
c9dff4e3 | 999 | If nil, means no modes have `whitespace-mode' automatically |
30d0ade9 | 1000 | turned on. |
c9dff4e3 VJL |
1001 | |
1002 | If t, all modes that support `whitespace-mode' have it | |
1003 | automatically turned on. | |
1004 | ||
1005 | Else it should be a list of `major-mode' symbol names for which | |
1006 | `whitespace-mode' should be automatically turned on. The sense | |
30d0ade9 VJL |
1007 | of the list is negated if it begins with `not'. For example: |
1008 | ||
1009 | (c-mode c++-mode) | |
1010 | ||
c9dff4e3 VJL |
1011 | means that `whitespace-mode' is turned on for buffers in C and |
1012 | C++ modes only." | |
94dc593f VJL |
1013 | :type '(choice :tag "Global Modes" |
1014 | (const :tag "None" nil) | |
97a739d5 VJL |
1015 | (const :tag "All" t) |
1016 | (set :menu-tag "Mode Specific" :tag "Modes" | |
30d0ade9 VJL |
1017 | :value (not) |
1018 | (const :tag "Except" not) | |
1019 | (repeat :inline t | |
97a739d5 | 1020 | (symbol :tag "Mode")))) |
c9dff4e3 | 1021 | :group 'whitespace) |
30d0ade9 | 1022 | |
94dc593f VJL |
1023 | |
1024 | (defcustom whitespace-action nil | |
9201cc28 | 1025 | "Specify which action is taken when a buffer is visited or written. |
94dc593f VJL |
1026 | |
1027 | It's a list containing some or all of the following values: | |
1028 | ||
1029 | nil no action is taken. | |
1030 | ||
1031 | cleanup cleanup any bogus whitespace always when local | |
1032 | whitespace is turned on. | |
1033 | See `whitespace-cleanup' and | |
1034 | `whitespace-cleanup-region'. | |
1035 | ||
1036 | report-on-bogus report if there is any bogus whitespace always | |
1037 | when local whitespace is turned on. | |
1038 | ||
1039 | auto-cleanup cleanup any bogus whitespace when buffer is | |
97f6e1ad | 1040 | written. |
94dc593f VJL |
1041 | See `whitespace-cleanup' and |
1042 | `whitespace-cleanup-region'. | |
1043 | ||
1044 | abort-on-bogus abort if there is any bogus whitespace and the | |
97f6e1ad | 1045 | buffer is written. |
94dc593f | 1046 | |
97f6e1ad | 1047 | warn-if-read-only give a warning if `cleanup' or `auto-cleanup' |
bc27c677 VJL |
1048 | is included in `whitespace-action' and the |
1049 | buffer is read-only. | |
1050 | ||
94dc593f VJL |
1051 | Any other value is treated as nil." |
1052 | :type '(choice :tag "Actions" | |
1053 | (const :tag "None" nil) | |
1054 | (repeat :tag "Action List" | |
1055 | (choice :tag "Action" | |
1056 | (const :tag "Cleanup When On" cleanup) | |
1057 | (const :tag "Report On Bogus" report-on-bogus) | |
1058 | (const :tag "Auto Cleanup" auto-cleanup) | |
bc27c677 | 1059 | (const :tag "Abort On Bogus" abort-on-bogus) |
97f6e1ad | 1060 | (const :tag "Warn If Read-Only" warn-if-read-only)))) |
94dc593f VJL |
1061 | :group 'whitespace) |
1062 | ||
30d0ade9 VJL |
1063 | \f |
1064 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
1065 | ;;;; User commands - Local mode | |
1066 | ||
1067 | ||
1068 | ;;;###autoload | |
c9dff4e3 | 1069 | (define-minor-mode whitespace-mode |
06e21633 CY |
1070 | "Toggle whitespace visualization (Whitespace mode). |
1071 | With a prefix argument ARG, enable Whitespace mode if ARG is | |
1072 | positive, and disable it otherwise. If called from Lisp, enable | |
1073 | the mode if ARG is omitted or nil. | |
cd222e44 VJL |
1074 | |
1075 | See also `whitespace-style', `whitespace-newline' and | |
1076 | `whitespace-display-mappings'." | |
c9dff4e3 | 1077 | :lighter " ws" |
30d0ade9 VJL |
1078 | :init-value nil |
1079 | :global nil | |
c9dff4e3 | 1080 | :group 'whitespace |
30d0ade9 VJL |
1081 | (cond |
1082 | (noninteractive ; running a batch job | |
c9dff4e3 VJL |
1083 | (setq whitespace-mode nil)) |
1084 | (whitespace-mode ; whitespace-mode on | |
94dc593f VJL |
1085 | (whitespace-turn-on) |
1086 | (whitespace-action-when-on)) | |
c9dff4e3 VJL |
1087 | (t ; whitespace-mode off |
1088 | (whitespace-turn-off)))) | |
30d0ade9 | 1089 | |
8b40bb55 VJL |
1090 | |
1091 | ;;;###autoload | |
1092 | (define-minor-mode whitespace-newline-mode | |
06e21633 CY |
1093 | "Toggle newline visualization (Whitespace Newline mode). |
1094 | With a prefix argument ARG, enable Whitespace Newline mode if ARG | |
1095 | is positive, and disable it otherwise. If called from Lisp, | |
1096 | enable the mode if ARG is omitted or nil. | |
8b40bb55 | 1097 | |
cd222e44 VJL |
1098 | Use `whitespace-newline-mode' only for NEWLINE visualization |
1099 | exclusively. For other visualizations, including NEWLINE | |
1100 | visualization together with (HARD) SPACEs and/or TABs, please, | |
1101 | use `whitespace-mode'. | |
1102 | ||
1103 | See also `whitespace-newline' and `whitespace-display-mappings'." | |
8b40bb55 VJL |
1104 | :lighter " nl" |
1105 | :init-value nil | |
1106 | :global nil | |
1107 | :group 'whitespace | |
e1cf81b4 VJL |
1108 | (let ((whitespace-style '(face newline-mark newline))) |
1109 | (whitespace-mode (if whitespace-newline-mode | |
1110 | 1 -1))) | |
84bd6e9e VJL |
1111 | ;; sync states (running a batch job) |
1112 | (setq whitespace-newline-mode whitespace-mode)) | |
8b40bb55 | 1113 | |
30d0ade9 VJL |
1114 | \f |
1115 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
1116 | ;;;; User commands - Global mode | |
1117 | ||
1118 | ||
55d1cfe8 | 1119 | ;;;###autoload |
c9dff4e3 | 1120 | (define-minor-mode global-whitespace-mode |
06e21633 CY |
1121 | "Toggle whitespace visualization globally (Global Whitespace mode). |
1122 | With a prefix argument ARG, enable Global Whitespace mode if ARG | |
1123 | is positive, and disable it otherwise. If called from Lisp, | |
1124 | enable it if ARG is omitted or nil. | |
cd222e44 VJL |
1125 | |
1126 | See also `whitespace-style', `whitespace-newline' and | |
1127 | `whitespace-display-mappings'." | |
acaf02dd | 1128 | :lighter " WS" |
30d0ade9 VJL |
1129 | :init-value nil |
1130 | :global t | |
c9dff4e3 | 1131 | :group 'whitespace |
30d0ade9 VJL |
1132 | (cond |
1133 | (noninteractive ; running a batch job | |
c9dff4e3 VJL |
1134 | (setq global-whitespace-mode nil)) |
1135 | (global-whitespace-mode ; global-whitespace-mode on | |
dd5a5ee0 | 1136 | (save-current-buffer |
94dc593f | 1137 | (add-hook 'find-file-hook 'whitespace-turn-on-if-enabled) |
cb79b8c0 | 1138 | (add-hook 'after-change-major-mode-hook 'whitespace-turn-on-if-enabled) |
30d0ade9 VJL |
1139 | (dolist (buffer (buffer-list)) ; adjust all local mode |
1140 | (set-buffer buffer) | |
c9dff4e3 VJL |
1141 | (unless whitespace-mode |
1142 | (whitespace-turn-on-if-enabled))))) | |
1143 | (t ; global-whitespace-mode off | |
dd5a5ee0 | 1144 | (save-current-buffer |
4a4b61e2 | 1145 | (remove-hook 'find-file-hook 'whitespace-turn-on-if-enabled) |
cb79b8c0 | 1146 | (remove-hook 'after-change-major-mode-hook 'whitespace-turn-on-if-enabled) |
30d0ade9 VJL |
1147 | (dolist (buffer (buffer-list)) ; adjust all local mode |
1148 | (set-buffer buffer) | |
e5403637 | 1149 | (unless whitespace-mode |
c9dff4e3 | 1150 | (whitespace-turn-off))))))) |
30d0ade9 VJL |
1151 | |
1152 | ||
c9dff4e3 | 1153 | (defun whitespace-turn-on-if-enabled () |
30d0ade9 | 1154 | (when (cond |
c9dff4e3 VJL |
1155 | ((eq whitespace-global-modes t)) |
1156 | ((listp whitespace-global-modes) | |
1157 | (if (eq (car-safe whitespace-global-modes) 'not) | |
1158 | (not (memq major-mode (cdr whitespace-global-modes))) | |
1159 | (memq major-mode whitespace-global-modes))) | |
30d0ade9 VJL |
1160 | (t nil)) |
1161 | (let (inhibit-quit) | |
c9dff4e3 | 1162 | ;; Don't turn on whitespace mode if... |
30d0ade9 VJL |
1163 | (or |
1164 | ;; ...we don't have a display (we're running a batch job) | |
1165 | noninteractive | |
1166 | ;; ...or if the buffer is invisible (name starts with a space) | |
1167 | (eq (aref (buffer-name) 0) ?\ ) | |
1168 | ;; ...or if the buffer is temporary (name starts with *) | |
1169 | (and (eq (aref (buffer-name) 0) ?*) | |
1170 | ;; except the scratch buffer. | |
1171 | (not (string= (buffer-name) "*scratch*"))) | |
c9dff4e3 VJL |
1172 | ;; Otherwise, turn on whitespace mode. |
1173 | (whitespace-turn-on))))) | |
30d0ade9 | 1174 | |
8b40bb55 VJL |
1175 | |
1176 | ;;;###autoload | |
1177 | (define-minor-mode global-whitespace-newline-mode | |
06e21633 CY |
1178 | "Toggle global newline visualization (Global Whitespace Newline mode). |
1179 | With a prefix argument ARG, enable Global Whitespace Newline mode | |
1180 | if ARG is positive, and disable it otherwise. If called from | |
1181 | Lisp, enable it if ARG is omitted or nil. | |
8b40bb55 | 1182 | |
cd222e44 VJL |
1183 | Use `global-whitespace-newline-mode' only for NEWLINE |
1184 | visualization exclusively. For other visualizations, including | |
1185 | NEWLINE visualization together with (HARD) SPACEs and/or TABs, | |
db9e401b | 1186 | please use `global-whitespace-mode'. |
cd222e44 VJL |
1187 | |
1188 | See also `whitespace-newline' and `whitespace-display-mappings'." | |
8b40bb55 VJL |
1189 | :lighter " NL" |
1190 | :init-value nil | |
1191 | :global t | |
1192 | :group 'whitespace | |
1193 | (let ((whitespace-style '(newline-mark newline))) | |
362b9d48 GM |
1194 | (global-whitespace-mode (if global-whitespace-newline-mode |
1195 | 1 -1)) | |
8b40bb55 VJL |
1196 | ;; sync states (running a batch job) |
1197 | (setq global-whitespace-newline-mode global-whitespace-mode))) | |
1198 | ||
30d0ade9 VJL |
1199 | \f |
1200 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
1201 | ;;;; User commands - Toggle | |
1202 | ||
1203 | ||
ae68f2d8 | 1204 | (defconst whitespace-style-value-list |
85cc3d4f VJL |
1205 | '(face |
1206 | tabs | |
30d0ade9 VJL |
1207 | spaces |
1208 | trailing | |
30d0ade9 | 1209 | lines |
9f3b76d5 | 1210 | lines-tail |
30d0ade9 | 1211 | newline |
97a739d5 | 1212 | empty |
55d1cfe8 VJL |
1213 | indentation |
1214 | indentation::tab | |
1215 | indentation::space | |
97a739d5 | 1216 | space-after-tab |
55d1cfe8 VJL |
1217 | space-after-tab::tab |
1218 | space-after-tab::space | |
1219 | space-before-tab | |
1220 | space-before-tab::tab | |
1221 | space-before-tab::space | |
ae68f2d8 VJL |
1222 | help-newline ; value used by `whitespace-insert-option-mark' |
1223 | tab-mark | |
55d1cfe8 VJL |
1224 | space-mark |
1225 | newline-mark | |
30d0ade9 | 1226 | ) |
ae68f2d8 | 1227 | "List of valid `whitespace-style' values.") |
30d0ade9 VJL |
1228 | |
1229 | ||
c9dff4e3 | 1230 | (defconst whitespace-toggle-option-alist |
85cc3d4f VJL |
1231 | '((?f . face) |
1232 | (?t . tabs) | |
55d1cfe8 VJL |
1233 | (?s . spaces) |
1234 | (?r . trailing) | |
1235 | (?l . lines) | |
1236 | (?L . lines-tail) | |
1237 | (?n . newline) | |
1238 | (?e . empty) | |
1239 | (?\C-i . indentation) | |
1240 | (?I . indentation::tab) | |
1241 | (?i . indentation::space) | |
1242 | (?\C-a . space-after-tab) | |
1243 | (?A . space-after-tab::tab) | |
1244 | (?a . space-after-tab::space) | |
1245 | (?\C-b . space-before-tab) | |
1246 | (?B . space-before-tab::tab) | |
1247 | (?b . space-before-tab::space) | |
55d1cfe8 VJL |
1248 | (?T . tab-mark) |
1249 | (?S . space-mark) | |
1250 | (?N . newline-mark) | |
ae68f2d8 | 1251 | (?x . whitespace-style) |
30d0ade9 VJL |
1252 | ) |
1253 | "Alist of toggle options. | |
1254 | ||
1255 | Each element has the form: | |
1256 | ||
1257 | (CHAR . SYMBOL) | |
1258 | ||
1259 | Where: | |
1260 | ||
1261 | CHAR is a char which the user will have to type. | |
1262 | ||
1263 | SYMBOL is a valid symbol associated with CHAR. | |
ae68f2d8 | 1264 | See `whitespace-style-value-list'.") |
30d0ade9 VJL |
1265 | |
1266 | ||
ae68f2d8 VJL |
1267 | (defvar whitespace-active-style nil |
1268 | "Used to save locally `whitespace-style' value.") | |
30d0ade9 | 1269 | |
55d1cfe8 VJL |
1270 | (defvar whitespace-indent-tabs-mode indent-tabs-mode |
1271 | "Used to save locally `indent-tabs-mode' value.") | |
1272 | ||
1273 | (defvar whitespace-tab-width tab-width | |
1274 | "Used to save locally `tab-width' value.") | |
30d0ade9 | 1275 | |
32a9841c VJL |
1276 | (defvar whitespace-point (point) |
1277 | "Used to save locally current point value. | |
1278 | Used by `whitespace-trailing-regexp' function (which see).") | |
1279 | ||
1280 | (defvar whitespace-font-lock-refontify nil | |
1281 | "Used to save locally the font-lock refontify state. | |
1282 | Used by `whitespace-post-command-hook' function (which see).") | |
1283 | ||
80525855 VJL |
1284 | (defvar whitespace-bob-marker nil |
1285 | "Used to save locally the bob marker value. | |
1286 | Used by `whitespace-post-command-hook' function (which see).") | |
1287 | ||
1288 | (defvar whitespace-eob-marker nil | |
1289 | "Used to save locally the eob marker value. | |
1290 | Used by `whitespace-post-command-hook' function (which see).") | |
1291 | ||
1292 | (defvar whitespace-buffer-changed nil | |
1293 | "Used to indicate locally if buffer changed. | |
1294 | Used by `whitespace-post-command-hook' and `whitespace-buffer-changed' | |
1295 | functions (which see).") | |
1296 | ||
30d0ade9 VJL |
1297 | |
1298 | ;;;###autoload | |
c9dff4e3 VJL |
1299 | (defun whitespace-toggle-options (arg) |
1300 | "Toggle local `whitespace-mode' options. | |
30d0ade9 | 1301 | |
c9dff4e3 VJL |
1302 | If local whitespace-mode is off, toggle the option given by ARG |
1303 | and turn on local whitespace-mode. | |
30d0ade9 | 1304 | |
c9dff4e3 VJL |
1305 | If local whitespace-mode is on, toggle the option given by ARG |
1306 | and restart local whitespace-mode. | |
30d0ade9 VJL |
1307 | |
1308 | Interactively, it reads one of the following chars: | |
1309 | ||
1310 | CHAR MEANING | |
55d1cfe8 | 1311 | (VIA FACES) |
85cc3d4f | 1312 | f toggle face visualization |
040f578c VJL |
1313 | t toggle TAB visualization |
1314 | s toggle SPACE and HARD SPACE visualization | |
1315 | r toggle trailing blanks visualization | |
040f578c | 1316 | l toggle \"long lines\" visualization |
9f3b76d5 | 1317 | L toggle \"long lines\" tail visualization |
040f578c | 1318 | n toggle NEWLINE visualization |
97a739d5 | 1319 | e toggle empty line at bob and/or eob visualization |
55d1cfe8 VJL |
1320 | C-i toggle indentation SPACEs visualization (via `indent-tabs-mode') |
1321 | I toggle indentation SPACEs visualization | |
1322 | i toggle indentation TABs visualization | |
1323 | C-a toggle SPACEs after TAB visualization (via `indent-tabs-mode') | |
1324 | A toggle SPACEs after TAB: SPACEs visualization | |
1325 | a toggle SPACEs after TAB: TABs visualization | |
1326 | C-b toggle SPACEs before TAB visualization (via `indent-tabs-mode') | |
1327 | B toggle SPACEs before TAB: SPACEs visualization | |
1328 | b toggle SPACEs before TAB: TABs visualization | |
1329 | ||
1330 | (VIA DISPLAY TABLE) | |
1331 | T toggle TAB visualization | |
1332 | S toggle SPACEs before TAB visualization | |
1333 | N toggle NEWLINE visualization | |
1334 | ||
ae68f2d8 | 1335 | x restore `whitespace-style' value |
30d0ade9 VJL |
1336 | ? display brief help |
1337 | ||
040f578c | 1338 | Non-interactively, ARG should be a symbol or a list of symbols. |
30d0ade9 VJL |
1339 | The valid symbols are: |
1340 | ||
85cc3d4f | 1341 | face toggle face visualization |
040f578c VJL |
1342 | tabs toggle TAB visualization |
1343 | spaces toggle SPACE and HARD SPACE visualization | |
1344 | trailing toggle trailing blanks visualization | |
040f578c | 1345 | lines toggle \"long lines\" visualization |
9f3b76d5 | 1346 | lines-tail toggle \"long lines\" tail visualization |
040f578c | 1347 | newline toggle NEWLINE visualization |
97a739d5 | 1348 | empty toggle empty line at bob and/or eob visualization |
55d1cfe8 VJL |
1349 | indentation toggle indentation SPACEs visualization |
1350 | indentation::tab toggle indentation SPACEs visualization | |
1351 | indentation::space toggle indentation TABs visualization | |
1352 | space-after-tab toggle SPACEs after TAB visualization | |
1353 | space-after-tab::tab toggle SPACEs after TAB: SPACEs visualization | |
1354 | space-after-tab::space toggle SPACEs after TAB: TABs visualization | |
1355 | space-before-tab toggle SPACEs before TAB visualization | |
1356 | space-before-tab::tab toggle SPACEs before TAB: SPACEs visualization | |
1357 | space-before-tab::space toggle SPACEs before TAB: TABs visualization | |
1358 | ||
1359 | tab-mark toggle TAB visualization | |
1360 | space-mark toggle SPACEs before TAB visualization | |
1361 | newline-mark toggle NEWLINE visualization | |
1362 | ||
ae68f2d8 | 1363 | whitespace-style restore `whitespace-style' value |
55d1cfe8 | 1364 | |
ae68f2d8 | 1365 | See `whitespace-style' and `indent-tabs-mode' for documentation." |
c9dff4e3 | 1366 | (interactive (whitespace-interactive-char t)) |
ae68f2d8 VJL |
1367 | (let ((whitespace-style |
1368 | (whitespace-toggle-list t arg whitespace-active-style))) | |
c9dff4e3 VJL |
1369 | (whitespace-mode 0) |
1370 | (whitespace-mode 1))) | |
30d0ade9 VJL |
1371 | |
1372 | ||
ae68f2d8 VJL |
1373 | (defvar whitespace-toggle-style nil |
1374 | "Used to toggle the global `whitespace-style' value.") | |
30d0ade9 VJL |
1375 | |
1376 | ||
1377 | ;;;###autoload | |
c9dff4e3 VJL |
1378 | (defun global-whitespace-toggle-options (arg) |
1379 | "Toggle global `whitespace-mode' options. | |
30d0ade9 | 1380 | |
c9dff4e3 VJL |
1381 | If global whitespace-mode is off, toggle the option given by ARG |
1382 | and turn on global whitespace-mode. | |
30d0ade9 | 1383 | |
c9dff4e3 VJL |
1384 | If global whitespace-mode is on, toggle the option given by ARG |
1385 | and restart global whitespace-mode. | |
30d0ade9 | 1386 | |
b502217b | 1387 | Interactively, it accepts one of the following chars: |
30d0ade9 VJL |
1388 | |
1389 | CHAR MEANING | |
55d1cfe8 | 1390 | (VIA FACES) |
85cc3d4f | 1391 | f toggle face visualization |
040f578c VJL |
1392 | t toggle TAB visualization |
1393 | s toggle SPACE and HARD SPACE visualization | |
1394 | r toggle trailing blanks visualization | |
040f578c | 1395 | l toggle \"long lines\" visualization |
9f3b76d5 | 1396 | L toggle \"long lines\" tail visualization |
040f578c | 1397 | n toggle NEWLINE visualization |
97a739d5 | 1398 | e toggle empty line at bob and/or eob visualization |
55d1cfe8 VJL |
1399 | C-i toggle indentation SPACEs visualization (via `indent-tabs-mode') |
1400 | I toggle indentation SPACEs visualization | |
1401 | i toggle indentation TABs visualization | |
1402 | C-a toggle SPACEs after TAB visualization (via `indent-tabs-mode') | |
1403 | A toggle SPACEs after TAB: SPACEs visualization | |
1404 | a toggle SPACEs after TAB: TABs visualization | |
1405 | C-b toggle SPACEs before TAB visualization (via `indent-tabs-mode') | |
1406 | B toggle SPACEs before TAB: SPACEs visualization | |
1407 | b toggle SPACEs before TAB: TABs visualization | |
1408 | ||
1409 | (VIA DISPLAY TABLE) | |
1410 | T toggle TAB visualization | |
1411 | S toggle SPACEs before TAB visualization | |
1412 | N toggle NEWLINE visualization | |
1413 | ||
ae68f2d8 | 1414 | x restore `whitespace-style' value |
30d0ade9 VJL |
1415 | ? display brief help |
1416 | ||
040f578c | 1417 | Non-interactively, ARG should be a symbol or a list of symbols. |
30d0ade9 VJL |
1418 | The valid symbols are: |
1419 | ||
85cc3d4f | 1420 | face toggle face visualization |
040f578c VJL |
1421 | tabs toggle TAB visualization |
1422 | spaces toggle SPACE and HARD SPACE visualization | |
1423 | trailing toggle trailing blanks visualization | |
040f578c | 1424 | lines toggle \"long lines\" visualization |
9f3b76d5 | 1425 | lines-tail toggle \"long lines\" tail visualization |
040f578c | 1426 | newline toggle NEWLINE visualization |
97a739d5 | 1427 | empty toggle empty line at bob and/or eob visualization |
55d1cfe8 VJL |
1428 | indentation toggle indentation SPACEs visualization |
1429 | indentation::tab toggle indentation SPACEs visualization | |
1430 | indentation::space toggle indentation TABs visualization | |
1431 | space-after-tab toggle SPACEs after TAB visualization | |
1432 | space-after-tab::tab toggle SPACEs after TAB: SPACEs visualization | |
1433 | space-after-tab::space toggle SPACEs after TAB: TABs visualization | |
1434 | space-before-tab toggle SPACEs before TAB visualization | |
1435 | space-before-tab::tab toggle SPACEs before TAB: SPACEs visualization | |
1436 | space-before-tab::space toggle SPACEs before TAB: TABs visualization | |
1437 | ||
1438 | tab-mark toggle TAB visualization | |
1439 | space-mark toggle SPACEs before TAB visualization | |
1440 | newline-mark toggle NEWLINE visualization | |
1441 | ||
ae68f2d8 | 1442 | whitespace-style restore `whitespace-style' value |
55d1cfe8 | 1443 | |
ae68f2d8 | 1444 | See `whitespace-style' and `indent-tabs-mode' for documentation." |
c9dff4e3 | 1445 | (interactive (whitespace-interactive-char nil)) |
ae68f2d8 VJL |
1446 | (let ((whitespace-style |
1447 | (whitespace-toggle-list nil arg whitespace-toggle-style))) | |
1448 | (setq whitespace-toggle-style whitespace-style) | |
c9dff4e3 VJL |
1449 | (global-whitespace-mode 0) |
1450 | (global-whitespace-mode 1))) | |
30d0ade9 VJL |
1451 | |
1452 | \f | |
97a739d5 VJL |
1453 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1454 | ;;;; User commands - Cleanup | |
1455 | ||
1456 | ||
1457 | ;;;###autoload | |
c9dff4e3 | 1458 | (defun whitespace-cleanup () |
97a739d5 VJL |
1459 | "Cleanup some blank problems in all buffer or at region. |
1460 | ||
1461 | It usually applies to the whole buffer, but in transient mark | |
1462 | mode when the mark is active, it applies to the region. It also | |
c23dcd9f | 1463 | applies to the region when it is not in transient mark mode, the |
55d1cfe8 VJL |
1464 | mark is active and \\[universal-argument] was pressed just before |
1465 | calling `whitespace-cleanup' interactively. | |
97a739d5 | 1466 | |
c9dff4e3 | 1467 | See also `whitespace-cleanup-region'. |
97a739d5 | 1468 | |
b502217b | 1469 | The problems cleaned up are: |
97a739d5 VJL |
1470 | |
1471 | 1. empty lines at beginning of buffer. | |
1472 | 2. empty lines at end of buffer. | |
ae68f2d8 | 1473 | If `whitespace-style' includes the value `empty', remove all |
c9dff4e3 | 1474 | empty lines at beginning and/or end of buffer. |
97a739d5 VJL |
1475 | |
1476 | 3. 8 or more SPACEs at beginning of line. | |
ae68f2d8 | 1477 | If `whitespace-style' includes the value `indentation': |
55d1cfe8 VJL |
1478 | replace 8 or more SPACEs at beginning of line by TABs, if |
1479 | `indent-tabs-mode' is non-nil; otherwise, replace TABs by | |
1480 | SPACEs. | |
ae68f2d8 VJL |
1481 | If `whitespace-style' includes the value `indentation::tab', |
1482 | replace 8 or more SPACEs at beginning of line by TABs. | |
1483 | If `whitespace-style' includes the value `indentation::space', | |
1484 | replace TABs by SPACEs. | |
97a739d5 VJL |
1485 | |
1486 | 4. SPACEs before TAB. | |
ae68f2d8 | 1487 | If `whitespace-style' includes the value `space-before-tab': |
55d1cfe8 VJL |
1488 | replace SPACEs by TABs, if `indent-tabs-mode' is non-nil; |
1489 | otherwise, replace TABs by SPACEs. | |
ae68f2d8 | 1490 | If `whitespace-style' includes the value |
55d1cfe8 | 1491 | `space-before-tab::tab', replace SPACEs by TABs. |
ae68f2d8 | 1492 | If `whitespace-style' includes the value |
55d1cfe8 | 1493 | `space-before-tab::space', replace TABs by SPACEs. |
97a739d5 VJL |
1494 | |
1495 | 5. SPACEs or TABs at end of line. | |
ae68f2d8 | 1496 | If `whitespace-style' includes the value `trailing', remove |
55d1cfe8 | 1497 | all SPACEs or TABs at end of line. |
97a739d5 VJL |
1498 | |
1499 | 6. 8 or more SPACEs after TAB. | |
ae68f2d8 | 1500 | If `whitespace-style' includes the value `space-after-tab': |
55d1cfe8 VJL |
1501 | replace SPACEs by TABs, if `indent-tabs-mode' is non-nil; |
1502 | otherwise, replace TABs by SPACEs. | |
ae68f2d8 | 1503 | If `whitespace-style' includes the value |
55d1cfe8 | 1504 | `space-after-tab::tab', replace SPACEs by TABs. |
ae68f2d8 | 1505 | If `whitespace-style' includes the value |
55d1cfe8 VJL |
1506 | `space-after-tab::space', replace TABs by SPACEs. |
1507 | ||
ae68f2d8 VJL |
1508 | See `whitespace-style', `indent-tabs-mode' and `tab-width' for |
1509 | documentation." | |
bc27c677 VJL |
1510 | (interactive "@") |
1511 | (cond | |
1512 | ;; read-only buffer | |
1513 | (buffer-read-only | |
1514 | (whitespace-warn-read-only "cleanup")) | |
1515 | ;; region active | |
1516 | ((and (or transient-mark-mode | |
1517 | current-prefix-arg) | |
1518 | mark-active) | |
1519 | ;; PROBLEMs 1 and 2 are not handled in region | |
1520 | ;; PROBLEM 3: 8 or more SPACEs at bol | |
1521 | ;; PROBLEM 4: SPACEs before TAB | |
1522 | ;; PROBLEM 5: SPACEs or TABs at eol | |
1523 | ;; PROBLEM 6: 8 or more SPACEs after TAB | |
1524 | (whitespace-cleanup-region (region-beginning) (region-end))) | |
1525 | ;; whole buffer | |
1526 | (t | |
97a739d5 | 1527 | (save-excursion |
dd5a5ee0 | 1528 | (save-match-data ;FIXME: Why? |
55d1cfe8 VJL |
1529 | ;; PROBLEM 1: empty lines at bob |
1530 | ;; PROBLEM 2: empty lines at eob | |
1531 | ;; ACTION: remove all empty lines at bob and/or eob | |
ae68f2d8 | 1532 | (when (memq 'empty whitespace-style) |
9f3b76d5 VJL |
1533 | (let (overwrite-mode) ; enforce no overwrite |
1534 | (goto-char (point-min)) | |
a149fa51 | 1535 | (when (looking-at whitespace-empty-at-bob-regexp) |
9f3b76d5 | 1536 | (delete-region (match-beginning 1) (match-end 1))) |
c9dff4e3 | 1537 | (when (re-search-forward |
80525855 | 1538 | (concat whitespace-empty-at-eob-regexp "\\'") nil t) |
9f3b76d5 | 1539 | (delete-region (match-beginning 1) (match-end 1))))))) |
55d1cfe8 VJL |
1540 | ;; PROBLEM 3: 8 or more SPACEs at bol |
1541 | ;; PROBLEM 4: SPACEs before TAB | |
1542 | ;; PROBLEM 5: SPACEs or TABs at eol | |
1543 | ;; PROBLEM 6: 8 or more SPACEs after TAB | |
bc27c677 | 1544 | (whitespace-cleanup-region (point-min) (point-max))))) |
97a739d5 VJL |
1545 | |
1546 | ||
1547 | ;;;###autoload | |
c9dff4e3 | 1548 | (defun whitespace-cleanup-region (start end) |
97a739d5 VJL |
1549 | "Cleanup some blank problems at region. |
1550 | ||
b502217b | 1551 | The problems cleaned up are: |
97a739d5 VJL |
1552 | |
1553 | 1. 8 or more SPACEs at beginning of line. | |
ae68f2d8 | 1554 | If `whitespace-style' includes the value `indentation': |
55d1cfe8 VJL |
1555 | replace 8 or more SPACEs at beginning of line by TABs, if |
1556 | `indent-tabs-mode' is non-nil; otherwise, replace TABs by | |
1557 | SPACEs. | |
ae68f2d8 VJL |
1558 | If `whitespace-style' includes the value `indentation::tab', |
1559 | replace 8 or more SPACEs at beginning of line by TABs. | |
1560 | If `whitespace-style' includes the value `indentation::space', | |
1561 | replace TABs by SPACEs. | |
97a739d5 VJL |
1562 | |
1563 | 2. SPACEs before TAB. | |
ae68f2d8 | 1564 | If `whitespace-style' includes the value `space-before-tab': |
55d1cfe8 VJL |
1565 | replace SPACEs by TABs, if `indent-tabs-mode' is non-nil; |
1566 | otherwise, replace TABs by SPACEs. | |
ae68f2d8 | 1567 | If `whitespace-style' includes the value |
55d1cfe8 | 1568 | `space-before-tab::tab', replace SPACEs by TABs. |
ae68f2d8 | 1569 | If `whitespace-style' includes the value |
55d1cfe8 | 1570 | `space-before-tab::space', replace TABs by SPACEs. |
97a739d5 VJL |
1571 | |
1572 | 3. SPACEs or TABs at end of line. | |
ae68f2d8 | 1573 | If `whitespace-style' includes the value `trailing', remove |
55d1cfe8 | 1574 | all SPACEs or TABs at end of line. |
97a739d5 VJL |
1575 | |
1576 | 4. 8 or more SPACEs after TAB. | |
ae68f2d8 | 1577 | If `whitespace-style' includes the value `space-after-tab': |
55d1cfe8 VJL |
1578 | replace SPACEs by TABs, if `indent-tabs-mode' is non-nil; |
1579 | otherwise, replace TABs by SPACEs. | |
ae68f2d8 | 1580 | If `whitespace-style' includes the value |
55d1cfe8 | 1581 | `space-after-tab::tab', replace SPACEs by TABs. |
ae68f2d8 | 1582 | If `whitespace-style' includes the value |
55d1cfe8 VJL |
1583 | `space-after-tab::space', replace TABs by SPACEs. |
1584 | ||
ae68f2d8 VJL |
1585 | See `whitespace-style', `indent-tabs-mode' and `tab-width' for |
1586 | documentation." | |
bc27c677 VJL |
1587 | (interactive "@r") |
1588 | (if buffer-read-only | |
1589 | ;; read-only buffer | |
1590 | (whitespace-warn-read-only "cleanup region") | |
1591 | ;; non-read-only buffer | |
1592 | (let ((rstart (min start end)) | |
1593 | (rend (copy-marker (max start end))) | |
1594 | (indent-tabs-mode whitespace-indent-tabs-mode) | |
1595 | (tab-width whitespace-tab-width) | |
1596 | overwrite-mode ; enforce no overwrite | |
1597 | tmp) | |
1598 | (save-excursion | |
dd5a5ee0 | 1599 | (save-match-data ;FIXME: Why? |
bc27c677 VJL |
1600 | ;; PROBLEM 1: 8 or more SPACEs at bol |
1601 | (cond | |
1602 | ;; ACTION: replace 8 or more SPACEs at bol by TABs, if | |
1603 | ;; `indent-tabs-mode' is non-nil; otherwise, replace TABs | |
1604 | ;; by SPACEs. | |
1605 | ((memq 'indentation whitespace-style) | |
1606 | (let ((regexp (whitespace-indentation-regexp))) | |
1607 | (goto-char rstart) | |
1608 | (while (re-search-forward regexp rend t) | |
1609 | (setq tmp (current-indentation)) | |
1610 | (goto-char (match-beginning 0)) | |
1611 | (delete-horizontal-space) | |
1612 | (unless (eolp) | |
1613 | (indent-to tmp))))) | |
1614 | ;; ACTION: replace 8 or more SPACEs at bol by TABs. | |
1615 | ((memq 'indentation::tab whitespace-style) | |
1616 | (whitespace-replace-action | |
1617 | 'tabify rstart rend | |
1618 | (whitespace-indentation-regexp 'tab) 0)) | |
1619 | ;; ACTION: replace TABs by SPACEs. | |
1620 | ((memq 'indentation::space whitespace-style) | |
1621 | (whitespace-replace-action | |
1622 | 'untabify rstart rend | |
1623 | (whitespace-indentation-regexp 'space) 0))) | |
1624 | ;; PROBLEM 3: SPACEs or TABs at eol | |
1625 | ;; ACTION: remove all SPACEs or TABs at eol | |
1626 | (when (memq 'trailing whitespace-style) | |
1627 | (whitespace-replace-action | |
1628 | 'delete-region rstart rend | |
1629 | whitespace-trailing-regexp 1)) | |
1630 | ;; PROBLEM 4: 8 or more SPACEs after TAB | |
1631 | (cond | |
1632 | ;; ACTION: replace 8 or more SPACEs by TABs, if | |
1633 | ;; `indent-tabs-mode' is non-nil; otherwise, replace TABs | |
1634 | ;; by SPACEs. | |
1635 | ((memq 'space-after-tab whitespace-style) | |
1636 | (whitespace-replace-action | |
1637 | (if whitespace-indent-tabs-mode 'tabify 'untabify) | |
1638 | rstart rend (whitespace-space-after-tab-regexp) 1)) | |
1639 | ;; ACTION: replace 8 or more SPACEs by TABs. | |
1640 | ((memq 'space-after-tab::tab whitespace-style) | |
1641 | (whitespace-replace-action | |
1642 | 'tabify rstart rend | |
1643 | (whitespace-space-after-tab-regexp 'tab) 1)) | |
1644 | ;; ACTION: replace TABs by SPACEs. | |
1645 | ((memq 'space-after-tab::space whitespace-style) | |
1646 | (whitespace-replace-action | |
1647 | 'untabify rstart rend | |
1648 | (whitespace-space-after-tab-regexp 'space) 1))) | |
1649 | ;; PROBLEM 2: SPACEs before TAB | |
1650 | (cond | |
1651 | ;; ACTION: replace SPACEs before TAB by TABs, if | |
1652 | ;; `indent-tabs-mode' is non-nil; otherwise, replace TABs | |
1653 | ;; by SPACEs. | |
1654 | ((memq 'space-before-tab whitespace-style) | |
1655 | (whitespace-replace-action | |
1656 | (if whitespace-indent-tabs-mode 'tabify 'untabify) | |
1657 | rstart rend whitespace-space-before-tab-regexp | |
16498102 | 1658 | (if whitespace-indent-tabs-mode 0 2))) |
bc27c677 VJL |
1659 | ;; ACTION: replace SPACEs before TAB by TABs. |
1660 | ((memq 'space-before-tab::tab whitespace-style) | |
1661 | (whitespace-replace-action | |
1662 | 'tabify rstart rend | |
16498102 | 1663 | whitespace-space-before-tab-regexp 0)) |
bc27c677 VJL |
1664 | ;; ACTION: replace TABs by SPACEs. |
1665 | ((memq 'space-before-tab::space whitespace-style) | |
1666 | (whitespace-replace-action | |
1667 | 'untabify rstart rend | |
1668 | whitespace-space-before-tab-regexp 2))))) | |
1669 | (set-marker rend nil)))) ; point marker to nowhere | |
97a739d5 | 1670 | |
9f3b76d5 | 1671 | |
55d1cfe8 VJL |
1672 | (defun whitespace-replace-action (action rstart rend regexp index) |
1673 | "Do ACTION in the string matched by REGEXP between RSTART and REND. | |
1674 | ||
1675 | INDEX is the level group matched by REGEXP and used by ACTION. | |
1676 | ||
1677 | See also `tab-width'." | |
9f3b76d5 VJL |
1678 | (goto-char rstart) |
1679 | (while (re-search-forward regexp rend t) | |
55d1cfe8 VJL |
1680 | (goto-char (match-end index)) |
1681 | (funcall action (match-beginning index) (match-end index)))) | |
9f3b76d5 | 1682 | |
97a739d5 | 1683 | \f |
c9dff4e3 | 1684 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
94dc593f VJL |
1685 | ;;;; User command - report |
1686 | ||
1687 | ||
55d1cfe8 VJL |
1688 | (defun whitespace-regexp (regexp &optional kind) |
1689 | "Return REGEXP depending on `whitespace-indent-tabs-mode'." | |
1690 | (cond | |
1691 | ((or (eq kind 'tab) | |
1692 | whitespace-indent-tabs-mode) | |
1693 | (format (car regexp) whitespace-tab-width)) | |
1694 | ((or (eq kind 'space) | |
1695 | (not whitespace-indent-tabs-mode)) | |
1696 | (cdr regexp)))) | |
1697 | ||
1698 | ||
1699 | (defun whitespace-indentation-regexp (&optional kind) | |
1700 | "Return the indentation regexp depending on `whitespace-indent-tabs-mode'." | |
1701 | (whitespace-regexp whitespace-indentation-regexp kind)) | |
1702 | ||
1703 | ||
1704 | (defun whitespace-space-after-tab-regexp (&optional kind) | |
1705 | "Return the space-after-tab regexp depending on `whitespace-indent-tabs-mode'." | |
1706 | (whitespace-regexp whitespace-space-after-tab-regexp kind)) | |
1707 | ||
1708 | ||
94dc593f VJL |
1709 | (defconst whitespace-report-list |
1710 | (list | |
55d1cfe8 VJL |
1711 | (cons 'empty whitespace-empty-at-bob-regexp) |
1712 | (cons 'empty whitespace-empty-at-eob-regexp) | |
2788143d | 1713 | (cons 'trailing whitespace-trailing-regexp) |
55d1cfe8 VJL |
1714 | (cons 'indentation nil) |
1715 | (cons 'indentation::tab nil) | |
1716 | (cons 'indentation::space nil) | |
1717 | (cons 'space-before-tab whitespace-space-before-tab-regexp) | |
1718 | (cons 'space-before-tab::tab whitespace-space-before-tab-regexp) | |
1719 | (cons 'space-before-tab::space whitespace-space-before-tab-regexp) | |
1720 | (cons 'space-after-tab nil) | |
1721 | (cons 'space-after-tab::tab nil) | |
1722 | (cons 'space-after-tab::space nil) | |
94dc593f VJL |
1723 | ) |
1724 | "List of whitespace bogus symbol and corresponding regexp.") | |
1725 | ||
1726 | ||
1727 | (defconst whitespace-report-text | |
55d1cfe8 VJL |
1728 | '( ;; `indent-tabs-mode' has non-nil value |
1729 | "\ | |
1730 | Whitespace Report | |
1731 | ||
1732 | Current Setting Whitespace Problem | |
1733 | ||
1734 | empty [] [] empty lines at beginning of buffer | |
1735 | empty [] [] empty lines at end of buffer | |
1736 | trailing [] [] SPACEs or TABs at end of line | |
1737 | indentation [] [] 8 or more SPACEs at beginning of line | |
1738 | indentation::tab [] [] 8 or more SPACEs at beginning of line | |
1739 | indentation::space [] [] TABs at beginning of line | |
1740 | space-before-tab [] [] SPACEs before TAB | |
1741 | space-before-tab::tab [] [] SPACEs before TAB: SPACEs | |
1742 | space-before-tab::space [] [] SPACEs before TAB: TABs | |
1743 | space-after-tab [] [] 8 or more SPACEs after TAB | |
1744 | space-after-tab::tab [] [] 8 or more SPACEs after TAB: SPACEs | |
1745 | space-after-tab::space [] [] 8 or more SPACEs after TAB: TABs | |
1746 | ||
1747 | indent-tabs-mode = | |
1748 | tab-width = \n\n" | |
1749 | . ;; `indent-tabs-mode' has nil value | |
1750 | "\ | |
1751 | Whitespace Report | |
1752 | ||
1753 | Current Setting Whitespace Problem | |
1754 | ||
1755 | empty [] [] empty lines at beginning of buffer | |
1756 | empty [] [] empty lines at end of buffer | |
1757 | trailing [] [] SPACEs or TABs at end of line | |
1758 | indentation [] [] TABs at beginning of line | |
1759 | indentation::tab [] [] 8 or more SPACEs at beginning of line | |
1760 | indentation::space [] [] TABs at beginning of line | |
1761 | space-before-tab [] [] SPACEs before TAB | |
1762 | space-before-tab::tab [] [] SPACEs before TAB: SPACEs | |
1763 | space-before-tab::space [] [] SPACEs before TAB: TABs | |
1764 | space-after-tab [] [] 8 or more SPACEs after TAB | |
1765 | space-after-tab::tab [] [] 8 or more SPACEs after TAB: SPACEs | |
1766 | space-after-tab::space [] [] 8 or more SPACEs after TAB: TABs | |
1767 | ||
1768 | indent-tabs-mode = | |
1769 | tab-width = \n\n") | |
1770 | "Text for whitespace bogus report. | |
1771 | ||
1772 | It is a cons of strings, where the car part is used when | |
1773 | `indent-tabs-mode' is non-nil, and the cdr part is used when | |
1774 | `indent-tabs-mode' is nil.") | |
94dc593f VJL |
1775 | |
1776 | ||
1777 | (defconst whitespace-report-buffer-name "*Whitespace Report*" | |
1778 | "The buffer name for whitespace bogus report.") | |
c9dff4e3 VJL |
1779 | |
1780 | ||
1781 | ;;;###autoload | |
94dc593f VJL |
1782 | (defun whitespace-report (&optional force report-if-bogus) |
1783 | "Report some whitespace problems in buffer. | |
c9dff4e3 | 1784 | |
94dc593f VJL |
1785 | Return nil if there is no whitespace problem; otherwise, return |
1786 | non-nil. | |
c9dff4e3 | 1787 | |
55d1cfe8 VJL |
1788 | If FORCE is non-nil or \\[universal-argument] was pressed just |
1789 | before calling `whitespace-report' interactively, it forces | |
ae68f2d8 | 1790 | `whitespace-style' to have: |
c9dff4e3 | 1791 | |
94dc593f | 1792 | empty |
55d1cfe8 | 1793 | trailing |
c9dff4e3 VJL |
1794 | indentation |
1795 | space-before-tab | |
94dc593f VJL |
1796 | space-after-tab |
1797 | ||
1798 | If REPORT-IF-BOGUS is non-nil, it reports only when there are any | |
1799 | whitespace problems in buffer. | |
1800 | ||
1801 | Report if some of the following whitespace problems exist: | |
1802 | ||
55d1cfe8 | 1803 | * If `indent-tabs-mode' is non-nil: |
94dc593f VJL |
1804 | empty 1. empty lines at beginning of buffer. |
1805 | empty 2. empty lines at end of buffer. | |
55d1cfe8 VJL |
1806 | trailing 3. SPACEs or TABs at end of line. |
1807 | indentation 4. 8 or more SPACEs at beginning of line. | |
1808 | space-before-tab 5. SPACEs before TAB. | |
94dc593f VJL |
1809 | space-after-tab 6. 8 or more SPACEs after TAB. |
1810 | ||
55d1cfe8 VJL |
1811 | * If `indent-tabs-mode' is nil: |
1812 | empty 1. empty lines at beginning of buffer. | |
1813 | empty 2. empty lines at end of buffer. | |
1814 | trailing 3. SPACEs or TABs at end of line. | |
1815 | indentation 4. TABS at beginning of line. | |
1816 | space-before-tab 5. SPACEs before TAB. | |
1817 | space-after-tab 6. 8 or more SPACEs after TAB. | |
1818 | ||
ae68f2d8 | 1819 | See `whitespace-style' for documentation. |
94dc593f VJL |
1820 | See also `whitespace-cleanup' and `whitespace-cleanup-region' for |
1821 | cleaning up these problems." | |
1822 | (interactive (list current-prefix-arg)) | |
1823 | (whitespace-report-region (point-min) (point-max) | |
1824 | force report-if-bogus)) | |
1825 | ||
1826 | ||
1827 | ;;;###autoload | |
1828 | (defun whitespace-report-region (start end &optional force report-if-bogus) | |
1829 | "Report some whitespace problems in a region. | |
1830 | ||
1831 | Return nil if there is no whitespace problem; otherwise, return | |
1832 | non-nil. | |
1833 | ||
55d1cfe8 VJL |
1834 | If FORCE is non-nil or \\[universal-argument] was pressed just |
1835 | before calling `whitespace-report-region' interactively, it | |
ae68f2d8 | 1836 | forces `whitespace-style' to have: |
94dc593f | 1837 | |
c9dff4e3 | 1838 | empty |
94dc593f VJL |
1839 | indentation |
1840 | space-before-tab | |
1841 | trailing | |
c9dff4e3 VJL |
1842 | space-after-tab |
1843 | ||
94dc593f VJL |
1844 | If REPORT-IF-BOGUS is non-nil, it reports only when there are any |
1845 | whitespace problems in buffer. | |
1846 | ||
1847 | Report if some of the following whitespace problems exist: | |
c9dff4e3 | 1848 | |
55d1cfe8 VJL |
1849 | * If `indent-tabs-mode' is non-nil: |
1850 | empty 1. empty lines at beginning of buffer. | |
1851 | empty 2. empty lines at end of buffer. | |
1852 | trailing 3. SPACEs or TABs at end of line. | |
1853 | indentation 4. 8 or more SPACEs at beginning of line. | |
1854 | space-before-tab 5. SPACEs before TAB. | |
1855 | space-after-tab 6. 8 or more SPACEs after TAB. | |
1856 | ||
1857 | * If `indent-tabs-mode' is nil: | |
c9dff4e3 VJL |
1858 | empty 1. empty lines at beginning of buffer. |
1859 | empty 2. empty lines at end of buffer. | |
55d1cfe8 VJL |
1860 | trailing 3. SPACEs or TABs at end of line. |
1861 | indentation 4. TABS at beginning of line. | |
1862 | space-before-tab 5. SPACEs before TAB. | |
c9dff4e3 VJL |
1863 | space-after-tab 6. 8 or more SPACEs after TAB. |
1864 | ||
ae68f2d8 | 1865 | See `whitespace-style' for documentation. |
c9dff4e3 VJL |
1866 | See also `whitespace-cleanup' and `whitespace-cleanup-region' for |
1867 | cleaning up these problems." | |
94dc593f VJL |
1868 | (interactive "r") |
1869 | (setq force (or current-prefix-arg force)) | |
1870 | (save-excursion | |
dd5a5ee0 | 1871 | (save-match-data ;FIXME: Why? |
55d1cfe8 VJL |
1872 | (let* ((has-bogus nil) |
1873 | (rstart (min start end)) | |
1874 | (rend (max start end)) | |
1875 | (bogus-list | |
1876 | (mapcar | |
1877 | #'(lambda (option) | |
1878 | (when force | |
ae68f2d8 | 1879 | (add-to-list 'whitespace-style (car option))) |
55d1cfe8 VJL |
1880 | (goto-char rstart) |
1881 | (let ((regexp | |
1882 | (cond | |
1883 | ((eq (car option) 'indentation) | |
1884 | (whitespace-indentation-regexp)) | |
1885 | ((eq (car option) 'indentation::tab) | |
1886 | (whitespace-indentation-regexp 'tab)) | |
1887 | ((eq (car option) 'indentation::space) | |
1888 | (whitespace-indentation-regexp 'space)) | |
1889 | ((eq (car option) 'space-after-tab) | |
1890 | (whitespace-space-after-tab-regexp)) | |
1891 | ((eq (car option) 'space-after-tab::tab) | |
1892 | (whitespace-space-after-tab-regexp 'tab)) | |
1893 | ((eq (car option) 'space-after-tab::space) | |
1894 | (whitespace-space-after-tab-regexp 'space)) | |
1895 | (t | |
1896 | (cdr option))))) | |
1897 | (and (re-search-forward regexp rend t) | |
1898 | (setq has-bogus t)))) | |
1899 | whitespace-report-list))) | |
94dc593f | 1900 | (when (if report-if-bogus has-bogus t) |
55d1cfe8 VJL |
1901 | (whitespace-kill-buffer whitespace-report-buffer-name) |
1902 | ;; `whitespace-indent-tabs-mode' is local to current buffer | |
ce203001 VJL |
1903 | ;; `whitespace-tab-width' is local to current buffer |
1904 | (let ((ws-indent-tabs-mode whitespace-indent-tabs-mode) | |
1905 | (ws-tab-width whitespace-tab-width)) | |
55d1cfe8 VJL |
1906 | (with-current-buffer (get-buffer-create |
1907 | whitespace-report-buffer-name) | |
1908 | (erase-buffer) | |
1909 | (insert (if ws-indent-tabs-mode | |
1910 | (car whitespace-report-text) | |
1911 | (cdr whitespace-report-text))) | |
1912 | (goto-char (point-min)) | |
1913 | (forward-line 3) | |
1914 | (dolist (option whitespace-report-list) | |
1915 | (forward-line 1) | |
1916 | (whitespace-mark-x | |
ae68f2d8 | 1917 | 27 (memq (car option) whitespace-style)) |
55d1cfe8 VJL |
1918 | (whitespace-mark-x 7 (car bogus-list)) |
1919 | (setq bogus-list (cdr bogus-list))) | |
94dc593f | 1920 | (forward-line 1) |
55d1cfe8 | 1921 | (whitespace-insert-value ws-indent-tabs-mode) |
ce203001 | 1922 | (whitespace-insert-value ws-tab-width) |
55d1cfe8 VJL |
1923 | (when has-bogus |
1924 | (goto-char (point-max)) | |
1925 | (insert " Type `M-x whitespace-cleanup'" | |
1926 | " to cleanup the buffer.\n\n" | |
1927 | " Type `M-x whitespace-cleanup-region'" | |
1928 | " to cleanup a region.\n\n")) | |
1929 | (whitespace-display-window (current-buffer))))) | |
94dc593f | 1930 | has-bogus)))) |
c9dff4e3 VJL |
1931 | |
1932 | \f | |
30d0ade9 VJL |
1933 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1934 | ;;;; Internal functions | |
1935 | ||
1936 | ||
c9dff4e3 | 1937 | (defvar whitespace-font-lock-mode nil |
30d0ade9 | 1938 | "Used to remember whether a buffer had font lock mode on or not.") |
30d0ade9 | 1939 | |
c9dff4e3 | 1940 | (defvar whitespace-font-lock nil |
30d0ade9 | 1941 | "Used to remember whether a buffer initially had font lock on or not.") |
30d0ade9 | 1942 | |
c9dff4e3 | 1943 | (defvar whitespace-font-lock-keywords nil |
30d0ade9 | 1944 | "Used to save locally `font-lock-keywords' value.") |
30d0ade9 VJL |
1945 | |
1946 | ||
c9dff4e3 | 1947 | (defconst whitespace-help-text |
30d0ade9 | 1948 | "\ |
85cc3d4f VJL |
1949 | Whitespace Toggle Options | scroll up : SPC or > | |
1950 | | scroll down: M-SPC or < | | |
1951 | FACES \\__________________________/ | |
1952 | [] f - toggle face visualization | |
55d1cfe8 VJL |
1953 | [] t - toggle TAB visualization |
1954 | [] s - toggle SPACE and HARD SPACE visualization | |
1955 | [] r - toggle trailing blanks visualization | |
1956 | [] l - toggle \"long lines\" visualization | |
1957 | [] L - toggle \"long lines\" tail visualization | |
1958 | [] n - toggle NEWLINE visualization | |
1959 | [] e - toggle empty line at bob and/or eob visualization | |
1960 | [] C-i - toggle indentation SPACEs visualization (via `indent-tabs-mode') | |
1961 | [] I - toggle indentation SPACEs visualization | |
1962 | [] i - toggle indentation TABs visualization | |
1963 | [] C-a - toggle SPACEs after TAB visualization (via `indent-tabs-mode') | |
1964 | [] A - toggle SPACEs after TAB: SPACEs visualization | |
1965 | [] a - toggle SPACEs after TAB: TABs visualization | |
1966 | [] C-b - toggle SPACEs before TAB visualization (via `indent-tabs-mode') | |
1967 | [] B - toggle SPACEs before TAB: SPACEs visualization | |
1968 | [] b - toggle SPACEs before TAB: TABs visualization | |
1969 | ||
1970 | DISPLAY TABLE | |
1971 | [] T - toggle TAB visualization | |
1972 | [] S - toggle SPACE and HARD SPACE visualization | |
1973 | [] N - toggle NEWLINE visualization | |
1974 | ||
ae68f2d8 | 1975 | x - restore `whitespace-style' value |
30d0ade9 VJL |
1976 | |
1977 | ? - display this text\n\n" | |
c9dff4e3 | 1978 | "Text for whitespace toggle options.") |
30d0ade9 VJL |
1979 | |
1980 | ||
c9dff4e3 VJL |
1981 | (defconst whitespace-help-buffer-name "*Whitespace Toggle Options*" |
1982 | "The buffer name for whitespace toggle options.") | |
30d0ade9 VJL |
1983 | |
1984 | ||
55d1cfe8 VJL |
1985 | (defun whitespace-insert-value (value) |
1986 | "Insert VALUE at column 20 of next line." | |
1987 | (forward-line 1) | |
1988 | (move-to-column 20 t) | |
1989 | (insert (format "%s" value))) | |
1990 | ||
1991 | ||
94dc593f VJL |
1992 | (defun whitespace-mark-x (nchars condition) |
1993 | "Insert the mark ('X' or ' ') after NCHARS depending on CONDITION." | |
1994 | (forward-char nchars) | |
1995 | (insert (if condition "X" " "))) | |
1996 | ||
1997 | ||
c9dff4e3 | 1998 | (defun whitespace-insert-option-mark (the-list the-value) |
30d0ade9 | 1999 | "Insert the option mark ('X' or ' ') in toggle options buffer." |
ae68f2d8 | 2000 | (goto-char (point-min)) |
55d1cfe8 | 2001 | (forward-line 2) |
30d0ade9 | 2002 | (dolist (sym the-list) |
ae68f2d8 VJL |
2003 | (if (eq sym 'help-newline) |
2004 | (forward-line 2) | |
2005 | (forward-line 1) | |
2006 | (whitespace-mark-x 2 (memq sym the-value))))) | |
30d0ade9 VJL |
2007 | |
2008 | ||
ae68f2d8 | 2009 | (defun whitespace-help-on (style) |
c9dff4e3 VJL |
2010 | "Display the whitespace toggle options." |
2011 | (unless (get-buffer whitespace-help-buffer-name) | |
30d0ade9 | 2012 | (delete-other-windows) |
c9dff4e3 | 2013 | (let ((buffer (get-buffer-create whitespace-help-buffer-name))) |
7fdbcd83 | 2014 | (with-current-buffer buffer |
30d0ade9 | 2015 | (erase-buffer) |
c9dff4e3 | 2016 | (insert whitespace-help-text) |
c9dff4e3 | 2017 | (whitespace-insert-option-mark |
ae68f2d8 | 2018 | whitespace-style-value-list style) |
94dc593f VJL |
2019 | (whitespace-display-window buffer))))) |
2020 | ||
2021 | ||
2022 | (defun whitespace-display-window (buffer) | |
2023 | "Display BUFFER in a new window." | |
2024 | (goto-char (point-min)) | |
2025 | (set-buffer-modified-p nil) | |
85cc3d4f VJL |
2026 | (when (< (window-height) (* 2 window-min-height)) |
2027 | (kill-buffer buffer) | |
2028 | (error "Window height is too small; \ | |
c9dff4e3 | 2029 | can't split window to display whitespace toggle options")) |
85cc3d4f VJL |
2030 | (let ((win (split-window))) |
2031 | (set-window-buffer win buffer) | |
2032 | (shrink-window-if-larger-than-buffer win))) | |
30d0ade9 VJL |
2033 | |
2034 | ||
55d1cfe8 VJL |
2035 | (defun whitespace-kill-buffer (buffer-name) |
2036 | "Kill buffer BUFFER-NAME and windows related with it." | |
2037 | (let ((buffer (get-buffer buffer-name))) | |
30d0ade9 VJL |
2038 | (when buffer |
2039 | (delete-windows-on buffer) | |
2040 | (kill-buffer buffer)))) | |
2041 | ||
2042 | ||
55d1cfe8 VJL |
2043 | (defun whitespace-help-off () |
2044 | "Remove the buffer and window of the whitespace toggle options." | |
2045 | (whitespace-kill-buffer whitespace-help-buffer-name)) | |
2046 | ||
2047 | ||
85cc3d4f VJL |
2048 | (defun whitespace-help-scroll (&optional up) |
2049 | "Scroll help window, if it exists. | |
2050 | ||
2051 | If UP is non-nil, scroll up; otherwise, scroll down." | |
06b60517 | 2052 | (condition-case nil |
85cc3d4f VJL |
2053 | (let ((buffer (get-buffer whitespace-help-buffer-name))) |
2054 | (if buffer | |
2055 | (with-selected-window (get-buffer-window buffer) | |
2056 | (if up | |
2057 | (scroll-up 3) | |
2058 | (scroll-down 3))) | |
2059 | (ding))) | |
2060 | ;; handler | |
2061 | ((error) | |
2062 | ;; just ignore error | |
2063 | ))) | |
2064 | ||
2065 | ||
c9dff4e3 | 2066 | (defun whitespace-interactive-char (local-p) |
30d0ade9 VJL |
2067 | "Interactive function to read a char and return a symbol. |
2068 | ||
2069 | If LOCAL-P is non-nil, it uses a local context; otherwise, it | |
2070 | uses a global context. | |
2071 | ||
b502217b | 2072 | It accepts one of the following chars: |
30d0ade9 VJL |
2073 | |
2074 | CHAR MEANING | |
55d1cfe8 | 2075 | (VIA FACES) |
85cc3d4f | 2076 | f toggle face visualization |
040f578c VJL |
2077 | t toggle TAB visualization |
2078 | s toggle SPACE and HARD SPACE visualization | |
2079 | r toggle trailing blanks visualization | |
040f578c | 2080 | l toggle \"long lines\" visualization |
9f3b76d5 | 2081 | L toggle \"long lines\" tail visualization |
040f578c | 2082 | n toggle NEWLINE visualization |
97a739d5 | 2083 | e toggle empty line at bob and/or eob visualization |
55d1cfe8 VJL |
2084 | C-i toggle indentation SPACEs visualization (via `indent-tabs-mode') |
2085 | I toggle indentation SPACEs visualization | |
2086 | i toggle indentation TABs visualization | |
2087 | C-a toggle SPACEs after TAB visualization (via `indent-tabs-mode') | |
2088 | A toggle SPACEs after TAB: SPACEs visualization | |
2089 | a toggle SPACEs after TAB: TABs visualization | |
2090 | C-b toggle SPACEs before TAB visualization (via `indent-tabs-mode') | |
2091 | B toggle SPACEs before TAB: SPACEs visualization | |
2092 | b toggle SPACEs before TAB: TABs visualization | |
2093 | ||
2094 | (VIA DISPLAY TABLE) | |
2095 | T toggle TAB visualization | |
2096 | S toggle SPACE and HARD SPACE visualization | |
2097 | N toggle NEWLINE visualization | |
2098 | ||
ae68f2d8 | 2099 | x restore `whitespace-style' value |
30d0ade9 VJL |
2100 | ? display brief help |
2101 | ||
c9dff4e3 VJL |
2102 | See also `whitespace-toggle-option-alist'." |
2103 | (let* ((is-off (not (if local-p | |
2104 | whitespace-mode | |
2105 | global-whitespace-mode))) | |
ae68f2d8 VJL |
2106 | (style (cond (is-off whitespace-style) ; use default value |
2107 | (local-p whitespace-active-style) | |
2108 | (t whitespace-toggle-style))) | |
30d0ade9 | 2109 | (prompt |
c9dff4e3 | 2110 | (format "Whitespace Toggle %s (type ? for further options)-" |
30d0ade9 VJL |
2111 | (if local-p "Local" "Global"))) |
2112 | ch sym) | |
2113 | ;; read a valid option and get the corresponding symbol | |
2114 | (save-window-excursion | |
2115 | (condition-case data | |
2116 | (progn | |
2117 | (while | |
2118 | ;; while condition | |
2119 | (progn | |
2120 | (setq ch (read-char prompt)) | |
2121 | (not | |
2122 | (setq sym | |
c9dff4e3 VJL |
2123 | (cdr |
2124 | (assq ch whitespace-toggle-option-alist))))) | |
30d0ade9 | 2125 | ;; while body |
85cc3d4f VJL |
2126 | (cond |
2127 | ((eq ch ?\?) (whitespace-help-on style)) | |
2128 | ((eq ch ?\ ) (whitespace-help-scroll t)) | |
2129 | ((eq ch ?\M- ) (whitespace-help-scroll)) | |
2130 | ((eq ch ?>) (whitespace-help-scroll t)) | |
2131 | ((eq ch ?<) (whitespace-help-scroll)) | |
2132 | (t (ding)))) | |
c9dff4e3 | 2133 | (whitespace-help-off) |
30d0ade9 VJL |
2134 | (message " ")) ; clean echo area |
2135 | ;; handler | |
2136 | ((quit error) | |
c9dff4e3 | 2137 | (whitespace-help-off) |
30d0ade9 | 2138 | (error (error-message-string data))))) |
db9e401b | 2139 | (list sym))) ; return the appropriate symbol |
30d0ade9 VJL |
2140 | |
2141 | ||
ae68f2d8 | 2142 | (defun whitespace-toggle-list (local-p arg the-list) |
30d0ade9 VJL |
2143 | "Toggle options in THE-LIST based on list ARG. |
2144 | ||
2145 | If LOCAL-P is non-nil, it uses a local context; otherwise, it | |
2146 | uses a global context. | |
2147 | ||
2148 | ARG is a list of options to be toggled. | |
2149 | ||
2150 | THE-LIST is a list of options. This list will be toggled and the | |
ae68f2d8 | 2151 | resultant list will be returned." |
c9dff4e3 | 2152 | (unless (if local-p whitespace-mode global-whitespace-mode) |
ae68f2d8 | 2153 | (setq the-list whitespace-style)) |
30d0ade9 VJL |
2154 | (setq the-list (copy-sequence the-list)) ; keep original list |
2155 | (dolist (sym (if (listp arg) arg (list arg))) | |
2156 | (cond | |
ae68f2d8 VJL |
2157 | ;; ignore help value |
2158 | ((eq sym 'help-newline)) | |
30d0ade9 | 2159 | ;; restore default values |
ae68f2d8 VJL |
2160 | ((eq sym 'whitespace-style) |
2161 | (setq the-list whitespace-style)) | |
30d0ade9 | 2162 | ;; toggle valid values |
ae68f2d8 | 2163 | ((memq sym whitespace-style-value-list) |
30d0ade9 VJL |
2164 | (setq the-list (if (memq sym the-list) |
2165 | (delq sym the-list) | |
2166 | (cons sym the-list)))))) | |
2167 | the-list) | |
2168 | ||
ae68f2d8 | 2169 | |
1ed216db GM |
2170 | (defvar whitespace-display-table nil |
2171 | "Used to save a local display table.") | |
2172 | ||
2173 | (defvar whitespace-display-table-was-local nil | |
2174 | "Used to remember whether a buffer initially had a local display table.") | |
30d0ade9 | 2175 | |
ae68f2d8 | 2176 | |
c9dff4e3 VJL |
2177 | (defun whitespace-turn-on () |
2178 | "Turn on whitespace visualization." | |
55d1cfe8 | 2179 | ;; prepare local hooks |
97f6e1ad | 2180 | (add-hook 'write-file-functions 'whitespace-write-file-hook nil t) |
55d1cfe8 VJL |
2181 | ;; create whitespace local buffer environment |
2182 | (set (make-local-variable 'whitespace-font-lock-mode) nil) | |
2183 | (set (make-local-variable 'whitespace-font-lock) nil) | |
2184 | (set (make-local-variable 'whitespace-font-lock-keywords) nil) | |
2185 | (set (make-local-variable 'whitespace-display-table) nil) | |
2186 | (set (make-local-variable 'whitespace-display-table-was-local) nil) | |
ae68f2d8 VJL |
2187 | (set (make-local-variable 'whitespace-active-style) |
2188 | (if (listp whitespace-style) | |
2189 | whitespace-style | |
2190 | (list whitespace-style))) | |
55d1cfe8 VJL |
2191 | (set (make-local-variable 'whitespace-indent-tabs-mode) |
2192 | indent-tabs-mode) | |
2193 | (set (make-local-variable 'whitespace-tab-width) | |
2194 | tab-width) | |
2195 | ;; turn on whitespace | |
ae68f2d8 VJL |
2196 | (when whitespace-active-style |
2197 | (whitespace-color-on) | |
c9dff4e3 | 2198 | (whitespace-display-char-on))) |
30d0ade9 VJL |
2199 | |
2200 | ||
c9dff4e3 | 2201 | (defun whitespace-turn-off () |
b502217b | 2202 | "Turn off whitespace visualization." |
97f6e1ad | 2203 | (remove-hook 'write-file-functions 'whitespace-write-file-hook t) |
ae68f2d8 VJL |
2204 | (when whitespace-active-style |
2205 | (whitespace-color-off) | |
c9dff4e3 | 2206 | (whitespace-display-char-off))) |
30d0ade9 VJL |
2207 | |
2208 | ||
ae68f2d8 VJL |
2209 | (defun whitespace-style-face-p () |
2210 | "Return t if there is some visualization via face." | |
85cc3d4f VJL |
2211 | (and (memq 'face whitespace-active-style) |
2212 | (or (memq 'tabs whitespace-active-style) | |
2213 | (memq 'spaces whitespace-active-style) | |
2214 | (memq 'trailing whitespace-active-style) | |
2215 | (memq 'lines whitespace-active-style) | |
2216 | (memq 'lines-tail whitespace-active-style) | |
2217 | (memq 'newline whitespace-active-style) | |
2218 | (memq 'empty whitespace-active-style) | |
2219 | (memq 'indentation whitespace-active-style) | |
2220 | (memq 'indentation::tab whitespace-active-style) | |
2221 | (memq 'indentation::space whitespace-active-style) | |
2222 | (memq 'space-after-tab whitespace-active-style) | |
2223 | (memq 'space-after-tab::tab whitespace-active-style) | |
2224 | (memq 'space-after-tab::space whitespace-active-style) | |
2225 | (memq 'space-before-tab whitespace-active-style) | |
2226 | (memq 'space-before-tab::tab whitespace-active-style) | |
2227 | (memq 'space-before-tab::space whitespace-active-style)))) | |
ae68f2d8 VJL |
2228 | |
2229 | ||
c9dff4e3 | 2230 | (defun whitespace-color-on () |
040f578c | 2231 | "Turn on color visualization." |
ae68f2d8 | 2232 | (when (whitespace-style-face-p) |
c9dff4e3 VJL |
2233 | (unless whitespace-font-lock |
2234 | (setq whitespace-font-lock t | |
2235 | whitespace-font-lock-keywords | |
30d0ade9 | 2236 | (copy-sequence font-lock-keywords))) |
32a9841c VJL |
2237 | ;; save current point and refontify when necessary |
2238 | (set (make-local-variable 'whitespace-point) | |
2239 | (point)) | |
2240 | (set (make-local-variable 'whitespace-font-lock-refontify) | |
80525855 VJL |
2241 | 0) |
2242 | (set (make-local-variable 'whitespace-bob-marker) | |
2243 | (point-min-marker)) | |
2244 | (set (make-local-variable 'whitespace-eob-marker) | |
2245 | (point-max-marker)) | |
2246 | (set (make-local-variable 'whitespace-buffer-changed) | |
32a9841c VJL |
2247 | nil) |
2248 | (add-hook 'post-command-hook #'whitespace-post-command-hook nil t) | |
80525855 | 2249 | (add-hook 'before-change-functions #'whitespace-buffer-changed nil t) |
30d0ade9 | 2250 | ;; turn off font lock |
55d1cfe8 VJL |
2251 | (set (make-local-variable 'whitespace-font-lock-mode) |
2252 | font-lock-mode) | |
30d0ade9 | 2253 | (font-lock-mode 0) |
c9dff4e3 | 2254 | ;; add whitespace-mode color into font lock |
ae68f2d8 | 2255 | (when (memq 'spaces whitespace-active-style) |
30d0ade9 VJL |
2256 | (font-lock-add-keywords |
2257 | nil | |
2258 | (list | |
2259 | ;; Show SPACEs | |
80525855 | 2260 | (list whitespace-space-regexp 1 whitespace-space t) |
30d0ade9 | 2261 | ;; Show HARD SPACEs |
c9dff4e3 | 2262 | (list whitespace-hspace-regexp 1 whitespace-hspace t)) |
30d0ade9 | 2263 | t)) |
ae68f2d8 | 2264 | (when (memq 'tabs whitespace-active-style) |
30d0ade9 VJL |
2265 | (font-lock-add-keywords |
2266 | nil | |
2267 | (list | |
2268 | ;; Show TABs | |
80525855 | 2269 | (list whitespace-tab-regexp 1 whitespace-tab t)) |
30d0ade9 | 2270 | t)) |
ae68f2d8 | 2271 | (when (memq 'trailing whitespace-active-style) |
30d0ade9 VJL |
2272 | (font-lock-add-keywords |
2273 | nil | |
2274 | (list | |
2275 | ;; Show trailing blanks | |
32a9841c | 2276 | (list #'whitespace-trailing-regexp 1 whitespace-trailing t)) |
30d0ade9 | 2277 | t)) |
ae68f2d8 VJL |
2278 | (when (or (memq 'lines whitespace-active-style) |
2279 | (memq 'lines-tail whitespace-active-style)) | |
30d0ade9 VJL |
2280 | (font-lock-add-keywords |
2281 | nil | |
2282 | (list | |
2283 | ;; Show "long" lines | |
9f3b76d5 | 2284 | (list |
85cc3d4f VJL |
2285 | (let ((line-column (or whitespace-line-column fill-column))) |
2286 | (format | |
2287 | "^\\([^\t\n]\\{%s\\}\\|[^\t\n]\\{0,%s\\}\t\\)\\{%d\\}%s\\(.+\\)$" | |
2288 | whitespace-tab-width | |
2289 | (1- whitespace-tab-width) | |
2290 | (/ line-column whitespace-tab-width) | |
2291 | (let ((rem (% line-column whitespace-tab-width))) | |
2292 | (if (zerop rem) | |
2293 | "" | |
2294 | (format ".\\{%d\\}" rem))))) | |
ae68f2d8 | 2295 | (if (memq 'lines whitespace-active-style) |
9f3b76d5 VJL |
2296 | 0 ; whole line |
2297 | 2) ; line tail | |
c9dff4e3 | 2298 | whitespace-line t)) |
30d0ade9 | 2299 | t)) |
55d1cfe8 | 2300 | (cond |
ae68f2d8 | 2301 | ((memq 'space-before-tab whitespace-active-style) |
55d1cfe8 VJL |
2302 | (font-lock-add-keywords |
2303 | nil | |
2304 | (list | |
2305 | ;; Show SPACEs before TAB (indent-tabs-mode) | |
2306 | (list whitespace-space-before-tab-regexp | |
2307 | (if whitespace-indent-tabs-mode 1 2) | |
2308 | whitespace-space-before-tab t)) | |
2309 | t)) | |
ae68f2d8 | 2310 | ((memq 'space-before-tab::tab whitespace-active-style) |
30d0ade9 VJL |
2311 | (font-lock-add-keywords |
2312 | nil | |
2313 | (list | |
55d1cfe8 | 2314 | ;; Show SPACEs before TAB (SPACEs) |
c9dff4e3 VJL |
2315 | (list whitespace-space-before-tab-regexp |
2316 | 1 whitespace-space-before-tab t)) | |
30d0ade9 | 2317 | t)) |
ae68f2d8 | 2318 | ((memq 'space-before-tab::space whitespace-active-style) |
97a739d5 VJL |
2319 | (font-lock-add-keywords |
2320 | nil | |
2321 | (list | |
55d1cfe8 VJL |
2322 | ;; Show SPACEs before TAB (TABs) |
2323 | (list whitespace-space-before-tab-regexp | |
2324 | 2 whitespace-space-before-tab t)) | |
2325 | t))) | |
2326 | (cond | |
ae68f2d8 | 2327 | ((memq 'indentation whitespace-active-style) |
55d1cfe8 VJL |
2328 | (font-lock-add-keywords |
2329 | nil | |
2330 | (list | |
2331 | ;; Show indentation SPACEs (indent-tabs-mode) | |
2332 | (list (whitespace-indentation-regexp) | |
c9dff4e3 | 2333 | 1 whitespace-indentation t)) |
97a739d5 | 2334 | t)) |
ae68f2d8 | 2335 | ((memq 'indentation::tab whitespace-active-style) |
55d1cfe8 VJL |
2336 | (font-lock-add-keywords |
2337 | nil | |
2338 | (list | |
2339 | ;; Show indentation SPACEs (SPACEs) | |
2340 | (list (whitespace-indentation-regexp 'tab) | |
2341 | 1 whitespace-indentation t)) | |
2342 | t)) | |
ae68f2d8 | 2343 | ((memq 'indentation::space whitespace-active-style) |
55d1cfe8 VJL |
2344 | (font-lock-add-keywords |
2345 | nil | |
2346 | (list | |
2347 | ;; Show indentation SPACEs (TABs) | |
2348 | (list (whitespace-indentation-regexp 'space) | |
2349 | 1 whitespace-indentation t)) | |
2350 | t))) | |
ae68f2d8 | 2351 | (when (memq 'empty whitespace-active-style) |
97a739d5 VJL |
2352 | (font-lock-add-keywords |
2353 | nil | |
2354 | (list | |
2355 | ;; Show empty lines at beginning of buffer | |
32a9841c | 2356 | (list #'whitespace-empty-at-bob-regexp |
c9dff4e3 | 2357 | 1 whitespace-empty t)) |
97a739d5 VJL |
2358 | t) |
2359 | (font-lock-add-keywords | |
2360 | nil | |
2361 | (list | |
2362 | ;; Show empty lines at end of buffer | |
32a9841c | 2363 | (list #'whitespace-empty-at-eob-regexp |
c9dff4e3 | 2364 | 1 whitespace-empty t)) |
97a739d5 | 2365 | t)) |
55d1cfe8 | 2366 | (cond |
ae68f2d8 | 2367 | ((memq 'space-after-tab whitespace-active-style) |
97a739d5 VJL |
2368 | (font-lock-add-keywords |
2369 | nil | |
2370 | (list | |
55d1cfe8 VJL |
2371 | ;; Show SPACEs after TAB (indent-tabs-mode) |
2372 | (list (whitespace-space-after-tab-regexp) | |
c9dff4e3 | 2373 | 1 whitespace-space-after-tab t)) |
97a739d5 | 2374 | t)) |
ae68f2d8 | 2375 | ((memq 'space-after-tab::tab whitespace-active-style) |
55d1cfe8 VJL |
2376 | (font-lock-add-keywords |
2377 | nil | |
2378 | (list | |
2379 | ;; Show SPACEs after TAB (SPACEs) | |
2380 | (list (whitespace-space-after-tab-regexp 'tab) | |
2381 | 1 whitespace-space-after-tab t)) | |
2382 | t)) | |
ae68f2d8 | 2383 | ((memq 'space-after-tab::space whitespace-active-style) |
55d1cfe8 VJL |
2384 | (font-lock-add-keywords |
2385 | nil | |
2386 | (list | |
2387 | ;; Show SPACEs after TAB (TABs) | |
2388 | (list (whitespace-space-after-tab-regexp 'space) | |
2389 | 1 whitespace-space-after-tab t)) | |
2390 | t))) | |
30d0ade9 VJL |
2391 | ;; now turn on font lock and highlight blanks |
2392 | (font-lock-mode 1))) | |
2393 | ||
2394 | ||
c9dff4e3 | 2395 | (defun whitespace-color-off () |
040f578c | 2396 | "Turn off color visualization." |
ae68f2d8 VJL |
2397 | ;; turn off font lock |
2398 | (when (whitespace-style-face-p) | |
040f578c | 2399 | (font-lock-mode 0) |
80525855 VJL |
2400 | (remove-hook 'post-command-hook #'whitespace-post-command-hook t) |
2401 | (remove-hook 'before-change-functions #'whitespace-buffer-changed t) | |
c9dff4e3 VJL |
2402 | (when whitespace-font-lock |
2403 | (setq whitespace-font-lock nil | |
2404 | font-lock-keywords whitespace-font-lock-keywords)) | |
30d0ade9 | 2405 | ;; restore original font lock state |
c9dff4e3 | 2406 | (font-lock-mode whitespace-font-lock-mode))) |
30d0ade9 | 2407 | |
32a9841c VJL |
2408 | |
2409 | (defun whitespace-trailing-regexp (limit) | |
748e3d67 | 2410 | "Match trailing spaces which do not contain the point at end of line." |
32a9841c VJL |
2411 | (let ((status t)) |
2412 | (while (if (re-search-forward whitespace-trailing-regexp limit t) | |
44a31225 VJL |
2413 | (= whitespace-point (match-end 1)) ;; loop if point at eol |
2414 | (setq status nil))) ;; end of buffer | |
32a9841c VJL |
2415 | status)) |
2416 | ||
2417 | ||
2418 | (defun whitespace-empty-at-bob-regexp (limit) | |
748e3d67 | 2419 | "Match spaces at beginning of buffer which do not contain the point at \ |
32a9841c | 2420 | beginning of buffer." |
80525855 VJL |
2421 | (let ((b (point)) |
2422 | r) | |
2423 | (cond | |
2424 | ;; at bob | |
2425 | ((= b 1) | |
2426 | (setq r (and (/= whitespace-point 1) | |
2427 | (looking-at whitespace-empty-at-bob-regexp))) | |
dd5a5ee0 | 2428 | (set-marker whitespace-bob-marker (if r (match-end 1) b))) |
80525855 VJL |
2429 | ;; inside bob empty region |
2430 | ((<= limit whitespace-bob-marker) | |
2431 | (setq r (looking-at whitespace-empty-at-bob-regexp)) | |
2432 | (if r | |
2433 | (when (< (match-end 1) limit) | |
2434 | (set-marker whitespace-bob-marker (match-end 1))) | |
2435 | (set-marker whitespace-bob-marker b))) | |
2436 | ;; intersection with end of bob empty region | |
2437 | ((<= b whitespace-bob-marker) | |
2438 | (setq r (looking-at whitespace-empty-at-bob-regexp)) | |
dd5a5ee0 | 2439 | (set-marker whitespace-bob-marker (if r (match-end 1) b))) |
80525855 VJL |
2440 | ;; it is not inside bob empty region |
2441 | (t | |
2442 | (setq r nil))) | |
2443 | ;; move to end of matching | |
2444 | (and r (goto-char (match-end 1))) | |
2445 | r)) | |
2446 | ||
2447 | ||
2448 | (defsubst whitespace-looking-back (regexp limit) | |
2449 | (save-excursion | |
2450 | (when (/= 0 (skip-chars-backward " \t\n" limit)) | |
2451 | (unless (bolp) | |
2452 | (forward-line 1)) | |
2453 | (looking-at regexp)))) | |
32a9841c VJL |
2454 | |
2455 | ||
2456 | (defun whitespace-empty-at-eob-regexp (limit) | |
748e3d67 | 2457 | "Match spaces at end of buffer which do not contain the point at end of \ |
32a9841c | 2458 | buffer." |
80525855 VJL |
2459 | (let ((b (point)) |
2460 | (e (1+ (buffer-size))) | |
2461 | r) | |
2462 | (cond | |
2463 | ;; at eob | |
2464 | ((= limit e) | |
2465 | (when (/= whitespace-point e) | |
2466 | (goto-char limit) | |
2467 | (setq r (whitespace-looking-back whitespace-empty-at-eob-regexp b))) | |
2468 | (if r | |
2469 | (set-marker whitespace-eob-marker (match-beginning 1)) | |
2470 | (set-marker whitespace-eob-marker limit) | |
2471 | (goto-char b))) ; return back to initial position | |
2472 | ;; inside eob empty region | |
2473 | ((>= b whitespace-eob-marker) | |
2474 | (goto-char limit) | |
2475 | (setq r (whitespace-looking-back whitespace-empty-at-eob-regexp b)) | |
2476 | (if r | |
2477 | (when (> (match-beginning 1) b) | |
2478 | (set-marker whitespace-eob-marker (match-beginning 1))) | |
2479 | (set-marker whitespace-eob-marker limit) | |
2480 | (goto-char b))) ; return back to initial position | |
2481 | ;; intersection with beginning of eob empty region | |
2482 | ((>= limit whitespace-eob-marker) | |
2483 | (goto-char limit) | |
2484 | (setq r (whitespace-looking-back whitespace-empty-at-eob-regexp b)) | |
2485 | (if r | |
2486 | (set-marker whitespace-eob-marker (match-beginning 1)) | |
2487 | (set-marker whitespace-eob-marker limit) | |
2488 | (goto-char b))) ; return back to initial position | |
2489 | ;; it is not inside eob empty region | |
2490 | (t | |
2491 | (setq r nil))) | |
2492 | r)) | |
2493 | ||
2494 | ||
06b60517 | 2495 | (defun whitespace-buffer-changed (_beg _end) |
80525855 VJL |
2496 | "Set `whitespace-buffer-changed' variable to t." |
2497 | (setq whitespace-buffer-changed t)) | |
32a9841c VJL |
2498 | |
2499 | ||
2500 | (defun whitespace-post-command-hook () | |
2501 | "Save current point into `whitespace-point' variable. | |
2502 | Also refontify when necessary." | |
80525855 VJL |
2503 | (setq whitespace-point (point)) ; current point position |
2504 | (let ((refontify | |
2505 | (or | |
2506 | ;; it is at end of line ... | |
2507 | (and (eolp) | |
2508 | ;; ... with trailing SPACE or TAB | |
2509 | (or (= (preceding-char) ?\ ) | |
2510 | (= (preceding-char) ?\t))) | |
2511 | ;; it is at beginning of buffer (bob) | |
2512 | (= whitespace-point 1) | |
2513 | ;; the buffer was modified and ... | |
2514 | (and whitespace-buffer-changed | |
2515 | (or | |
2516 | ;; ... or inside bob whitespace region | |
2517 | (<= whitespace-point whitespace-bob-marker) | |
2518 | ;; ... or at bob whitespace region border | |
2519 | (and (= whitespace-point (1+ whitespace-bob-marker)) | |
2520 | (= (preceding-char) ?\n)))) | |
2521 | ;; it is at end of buffer (eob) | |
2522 | (= whitespace-point (1+ (buffer-size))) | |
2523 | ;; the buffer was modified and ... | |
2524 | (and whitespace-buffer-changed | |
2525 | (or | |
2526 | ;; ... or inside eob whitespace region | |
2527 | (>= whitespace-point whitespace-eob-marker) | |
2528 | ;; ... or at eob whitespace region border | |
2529 | (and (= whitespace-point (1- whitespace-eob-marker)) | |
2530 | (= (following-char) ?\n))))))) | |
2531 | (when (or refontify (> whitespace-font-lock-refontify 0)) | |
2532 | (setq whitespace-buffer-changed nil) | |
2533 | ;; adjust refontify counter | |
2534 | (setq whitespace-font-lock-refontify | |
2535 | (if refontify | |
2536 | 1 | |
2537 | (1- whitespace-font-lock-refontify))) | |
2538 | ;; refontify | |
32a9841c VJL |
2539 | (jit-lock-refontify)))) |
2540 | ||
30d0ade9 VJL |
2541 | \f |
2542 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
2543 | ;;;; Hacked from visws.el (Miles Bader <miles@gnu.org>) | |
2544 | ||
2545 | ||
ae68f2d8 VJL |
2546 | (defun whitespace-style-mark-p () |
2547 | "Return t if there is some visualization via display table." | |
2548 | (or (memq 'tab-mark whitespace-active-style) | |
2549 | (memq 'space-mark whitespace-active-style) | |
2550 | (memq 'newline-mark whitespace-active-style))) | |
2551 | ||
2552 | ||
c9dff4e3 | 2553 | (defsubst whitespace-char-valid-p (char) |
30d0ade9 VJL |
2554 | ;; This check should be improved!!! |
2555 | (or (< char 256) | |
434b9acb | 2556 | (characterp char))) |
30d0ade9 VJL |
2557 | |
2558 | ||
c9dff4e3 | 2559 | (defun whitespace-display-vector-p (vec) |
30d0ade9 VJL |
2560 | "Return true if every character in vector VEC can be displayed." |
2561 | (let ((i (length vec))) | |
2562 | (when (> i 0) | |
2563 | (while (and (>= (setq i (1- i)) 0) | |
c9dff4e3 | 2564 | (whitespace-char-valid-p (aref vec i)))) |
30d0ade9 VJL |
2565 | (< i 0)))) |
2566 | ||
2567 | ||
c9dff4e3 | 2568 | (defun whitespace-display-char-on () |
30d0ade9 | 2569 | "Turn on character display mapping." |
ae68f2d8 VJL |
2570 | (when (and whitespace-display-mappings |
2571 | (whitespace-style-mark-p)) | |
30d0ade9 VJL |
2572 | (let (vecs vec) |
2573 | ;; Remember whether a buffer has a local display table. | |
c9dff4e3 VJL |
2574 | (unless whitespace-display-table-was-local |
2575 | (setq whitespace-display-table-was-local t | |
2576 | whitespace-display-table | |
80525855 | 2577 | (copy-sequence buffer-display-table)) |
91af3942 | 2578 | ;; Assure `buffer-display-table' is unique |
80525855 VJL |
2579 | ;; when two or more windows are visible. |
2580 | (setq buffer-display-table | |
30d0ade9 VJL |
2581 | (copy-sequence buffer-display-table))) |
2582 | (unless buffer-display-table | |
2583 | (setq buffer-display-table (make-display-table))) | |
c9dff4e3 | 2584 | (dolist (entry whitespace-display-mappings) |
55d1cfe8 | 2585 | ;; check if it is to display this mark |
ae68f2d8 | 2586 | (when (memq (car entry) whitespace-style) |
55d1cfe8 VJL |
2587 | ;; Get a displayable mapping. |
2588 | (setq vecs (cddr entry)) | |
2589 | (while (and vecs | |
2590 | (not (whitespace-display-vector-p (car vecs)))) | |
2591 | (setq vecs (cdr vecs))) | |
2592 | ;; Display a valid mapping. | |
2593 | (when vecs | |
2594 | (setq vec (copy-sequence (car vecs))) | |
2595 | ;; NEWLINE char | |
2596 | (when (and (eq (cadr entry) ?\n) | |
ae68f2d8 | 2597 | (memq 'newline whitespace-active-style)) |
55d1cfe8 VJL |
2598 | ;; Only insert face bits on NEWLINE char mapping to avoid |
2599 | ;; obstruction of other faces like TABs and (HARD) SPACEs | |
2600 | ;; faces, font-lock faces, etc. | |
30d0ade9 | 2601 | (dotimes (i (length vec)) |
30d0ade9 | 2602 | (or (eq (aref vec i) ?\n) |
c9dff4e3 VJL |
2603 | (aset vec i |
2604 | (make-glyph-code (aref vec i) | |
2605 | whitespace-newline))))) | |
30d0ade9 | 2606 | ;; Display mapping |
55d1cfe8 | 2607 | (aset buffer-display-table (cadr entry) vec))))))) |
30d0ade9 VJL |
2608 | |
2609 | ||
c9dff4e3 | 2610 | (defun whitespace-display-char-off () |
30d0ade9 | 2611 | "Turn off character display mapping." |
c9dff4e3 | 2612 | (and whitespace-display-mappings |
ae68f2d8 | 2613 | (whitespace-style-mark-p) |
c9dff4e3 VJL |
2614 | whitespace-display-table-was-local |
2615 | (setq whitespace-display-table-was-local nil | |
2616 | buffer-display-table whitespace-display-table))) | |
596c0ee1 VJL |
2617 | |
2618 | \f | |
94dc593f VJL |
2619 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2620 | ;;;; Hook | |
2621 | ||
2622 | ||
2623 | (defun whitespace-action-when-on () | |
2624 | "Action to be taken always when local whitespace is turned on." | |
2625 | (cond ((memq 'cleanup whitespace-action) | |
2626 | (whitespace-cleanup)) | |
2627 | ((memq 'report-on-bogus whitespace-action) | |
2628 | (whitespace-report nil t)))) | |
2629 | ||
2630 | ||
94dc593f VJL |
2631 | (defun whitespace-write-file-hook () |
2632 | "Action to be taken when buffer is written. | |
2633 | It should be added buffer-locally to `write-file-functions'." | |
94dc593f | 2634 | (cond ((memq 'auto-cleanup whitespace-action) |
97f6e1ad | 2635 | (whitespace-cleanup)) |
94dc593f | 2636 | ((memq 'abort-on-bogus whitespace-action) |
97f6e1ad VJL |
2637 | (when (whitespace-report nil t) |
2638 | (error "Abort write due to whitespace problems in %s" | |
2639 | (buffer-name))))) | |
2640 | nil) ; continue hook processing | |
94dc593f | 2641 | |
bc27c677 VJL |
2642 | |
2643 | (defun whitespace-warn-read-only (msg) | |
2644 | "Warn if buffer is read-only." | |
97f6e1ad | 2645 | (when (memq 'warn-if-read-only whitespace-action) |
bc27c677 VJL |
2646 | (message "Can't %s: %s is read-only" msg (buffer-name)))) |
2647 | ||
94dc593f | 2648 | \f |
30d0ade9 VJL |
2649 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2650 | ||
2651 | ||
1e2b96c2 | 2652 | (defun whitespace-unload-function () |
94dc593f VJL |
2653 | "Unload the whitespace library." |
2654 | (global-whitespace-mode -1) | |
2655 | ;; be sure all local whitespace mode is turned off | |
2656 | (save-current-buffer | |
2657 | (dolist (buf (buffer-list)) | |
2658 | (set-buffer buf) | |
2659 | (whitespace-mode -1))) | |
2660 | nil) ; continue standard unloading | |
2661 | ||
1e2b96c2 | 2662 | |
c9dff4e3 | 2663 | (provide 'whitespace) |
30d0ade9 VJL |
2664 | |
2665 | ||
c9dff4e3 | 2666 | (run-hooks 'whitespace-load-hook) |
30d0ade9 VJL |
2667 | |
2668 | ||
c9dff4e3 | 2669 | ;;; whitespace.el ends here |