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853c1ffc | 1 | ;;; hi-lock.el --- minor mode for interactive automatic highlighting -*- lexical-binding: t -*- |
abb2db1c | 2 | |
ab422c4d | 3 | ;; Copyright (C) 2000-2013 Free Software Foundation, Inc. |
abb2db1c | 4 | |
4c120732 | 5 | ;; Author: David M. Koppelman <koppel@ece.lsu.edu> |
abb2db1c GM |
6 | ;; Keywords: faces, minor-mode, matching, display |
7 | ||
8 | ;; This file is part of GNU Emacs. | |
9 | ||
eb3fa2cf | 10 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
abb2db1c | 11 | ;; it under the terms of the GNU General Public License as published by |
eb3fa2cf GM |
12 | ;; the Free Software Foundation, either version 3 of the License, or |
13 | ;; (at your option) any later version. | |
abb2db1c GM |
14 | |
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
eb3fa2cf | 21 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
abb2db1c | 22 | |
e8af40ee | 23 | ;;; Commentary: |
71296446 | 24 | ;; |
abb2db1c GM |
25 | ;; With the hi-lock commands text matching interactively entered |
26 | ;; regexp's can be highlighted. For example, `M-x highlight-regexp | |
27 | ;; RET clearly RET RET' will highlight all occurrences of `clearly' | |
28 | ;; using a yellow background face. New occurrences of `clearly' will | |
29 | ;; be highlighted as they are typed. `M-x unhighlight-regexp RET' | |
30 | ;; will remove the highlighting. Any existing face can be used for | |
31 | ;; highlighting and a set of appropriate faces is provided. The | |
32 | ;; regexps can be written into the current buffer in a form that will | |
c898bef7 CY |
33 | ;; be recognized the next time the corresponding file is read (when |
34 | ;; file patterns is turned on). | |
abb2db1c GM |
35 | ;; |
36 | ;; Applications: | |
37 | ;; | |
38 | ;; In program source code highlight a variable to quickly see all | |
39 | ;; places it is modified or referenced: | |
40 | ;; M-x highlight-regexp ground_contact_switches_closed RET RET | |
41 | ;; | |
42 | ;; In a shell or other buffer that is showing lots of program | |
43 | ;; output, highlight the parts of the output you're interested in: | |
44 | ;; M-x highlight-regexp Total execution time [0-9]+ RET hi-blue-b RET | |
45 | ;; | |
46 | ;; In buffers displaying tables, highlight the lines you're interested in: | |
47 | ;; M-x highlight-lines-matching-regexp January 2000 RET hi-black-b RET | |
48 | ;; | |
49 | ;; When writing text, highlight personal cliches. This can be | |
50 | ;; amusing. | |
108ee42b | 51 | ;; M-x highlight-phrase as can be seen RET RET |
abb2db1c | 52 | ;; |
108ee42b | 53 | ;; Setup: |
abb2db1c | 54 | ;; |
865fe16f | 55 | ;; Put the following code in your init file. This turns on |
108ee42b | 56 | ;; hi-lock mode and adds a "Regexp Highlighting" entry |
abb2db1c GM |
57 | ;; to the edit menu. |
58 | ;; | |
71060bdd | 59 | ;; (global-hi-lock-mode 1) |
71296446 | 60 | ;; |
c898bef7 | 61 | ;; To enable the use of patterns found in files (presumably placed |
865fe16f | 62 | ;; there by hi-lock) include the following in your init file: |
c898bef7 CY |
63 | ;; |
64 | ;; (setq hi-lock-file-patterns-policy 'ask) | |
65 | ;; | |
66 | ;; If you get tired of being asked each time a file is loaded replace | |
06b1a5ef | 67 | ;; `ask' with a function that returns t if patterns should be read. |
c898bef7 | 68 | ;; |
abb2db1c GM |
69 | ;; You might also want to bind the hi-lock commands to more |
70 | ;; finger-friendly sequences: | |
71 | ||
72 | ;; (define-key hi-lock-map "\C-z\C-h" 'highlight-lines-matching-regexp) | |
73 | ;; (define-key hi-lock-map "\C-zi" 'hi-lock-find-patterns) | |
74 | ;; (define-key hi-lock-map "\C-zh" 'highlight-regexp) | |
108ee42b | 75 | ;; (define-key hi-lock-map "\C-zp" 'highlight-phrase) |
abb2db1c GM |
76 | ;; (define-key hi-lock-map "\C-zr" 'unhighlight-regexp) |
77 | ;; (define-key hi-lock-map "\C-zb" 'hi-lock-write-interactive-patterns)) | |
78 | ||
79 | ;; See the documentation for hi-lock-mode `C-h f hi-lock-mode' for | |
80 | ;; additional instructions. | |
81 | ||
82 | ;; Sample file patterns: | |
83 | ||
84 | ; Hi-lock: (("^;;; .*" (0 (quote hi-black-hb) t))) | |
85 | ; Hi-lock: ( ("make-variable-buffer-\\(local\\)" (0 font-lock-keyword-face)(1 'italic append))))) | |
86 | ; Hi-lock: end | |
87 | ||
88 | ;;; Code: | |
89 | ||
befe199d | 90 | (require 'font-lock) |
abb2db1c | 91 | |
f43eaaef | 92 | (defgroup hi-lock nil |
abb2db1c | 93 | "Interactively add and remove font-lock patterns for highlighting text." |
f43eaaef JL |
94 | :link '(custom-manual "(emacs)Highlight Interactively") |
95 | :group 'font-lock) | |
abb2db1c | 96 | |
abb2db1c GM |
97 | (defcustom hi-lock-file-patterns-range 10000 |
98 | "Limit of search in a buffer for hi-lock patterns. | |
8b730780 | 99 | When a file is visited and hi-lock mode is on, patterns starting |
abb2db1c GM |
100 | up to this limit are added to font-lock's patterns. See documentation |
101 | of functions `hi-lock-mode' and `hi-lock-find-patterns'." | |
102 | :type 'integer | |
f43eaaef | 103 | :group 'hi-lock) |
abb2db1c | 104 | |
81dc5714 JL |
105 | (defcustom hi-lock-highlight-range 200000 |
106 | "Size of area highlighted by hi-lock when font-lock not active. | |
107 | Font-lock is not active in buffers that do their own highlighting, | |
108 | such as the buffer created by `list-colors-display'. In those buffers | |
109 | hi-lock patterns will only be applied over a range of | |
110 | `hi-lock-highlight-range' characters. If font-lock is active then | |
111 | highlighting will be applied throughout the buffer." | |
112 | :type 'integer | |
113 | :group 'hi-lock) | |
114 | ||
abb2db1c GM |
115 | (defcustom hi-lock-exclude-modes |
116 | '(rmail-mode mime/viewer-mode gnus-article-mode) | |
117 | "List of major modes in which hi-lock will not run. | |
118 | For security reasons since font lock patterns can specify function | |
119 | calls." | |
f5bd8092 | 120 | :type '(repeat symbol) |
f43eaaef | 121 | :group 'hi-lock) |
abb2db1c | 122 | |
cf995676 | 123 | (defcustom hi-lock-file-patterns-policy 'ask |
c898bef7 | 124 | "Specify when hi-lock should use patterns found in file. |
06b1a5ef | 125 | If `ask', prompt when patterns found in buffer; if bound to a function, |
c898bef7 | 126 | use patterns when function returns t (function is called with patterns |
06b1a5ef | 127 | as first argument); if nil or `never' or anything else, don't use file |
176eb1f1 GM |
128 | patterns." |
129 | :type '(choice (const :tag "Do not use file patterns" never) | |
130 | (const :tag "Ask about file patterns" ask) | |
131 | (function :tag "Function to check file patterns")) | |
132 | :group 'hi-lock | |
133 | :version "22.1") | |
134 | ||
135 | ;; It can have a function value. | |
136 | (put 'hi-lock-file-patterns-policy 'risky-local-variable t) | |
abb2db1c | 137 | |
b85aec93 J |
138 | (defcustom hi-lock-auto-select-face nil |
139 | "Non-nil if highlighting commands should not prompt for face names. | |
140 | When non-nil, each hi-lock command will cycle through faces in | |
853c1ffc | 141 | `hi-lock-face-defaults' without prompting." |
b85aec93 J |
142 | :type 'boolean |
143 | :version "24.4") | |
144 | ||
abb2db1c GM |
145 | (defgroup hi-lock-faces nil |
146 | "Faces for hi-lock." | |
f43eaaef JL |
147 | :group 'hi-lock |
148 | :group 'faces) | |
abb2db1c GM |
149 | |
150 | (defface hi-yellow | |
e0d815a2 | 151 | '((((min-colors 88) (background dark)) |
ea81d57e DN |
152 | (:background "yellow1" :foreground "black")) |
153 | (((background dark)) (:background "yellow" :foreground "black")) | |
154 | (((min-colors 88)) (:background "yellow1")) | |
a0b8c939 | 155 | (t (:background "yellow"))) |
abb2db1c GM |
156 | "Default face for hi-lock mode." |
157 | :group 'hi-lock-faces) | |
158 | ||
159 | (defface hi-pink | |
16cdf141 | 160 | '((((background dark)) (:background "pink" :foreground "black")) |
a0b8c939 | 161 | (t (:background "pink"))) |
abb2db1c GM |
162 | "Face for hi-lock mode." |
163 | :group 'hi-lock-faces) | |
164 | ||
165 | (defface hi-green | |
e0d815a2 | 166 | '((((min-colors 88) (background dark)) |
ea81d57e DN |
167 | (:background "green1" :foreground "black")) |
168 | (((background dark)) (:background "green" :foreground "black")) | |
e0d815a2 | 169 | (((min-colors 88)) (:background "green1")) |
a0b8c939 | 170 | (t (:background "green"))) |
abb2db1c GM |
171 | "Face for hi-lock mode." |
172 | :group 'hi-lock-faces) | |
173 | ||
174 | (defface hi-blue | |
16cdf141 | 175 | '((((background dark)) (:background "light blue" :foreground "black")) |
a0b8c939 | 176 | (t (:background "light blue"))) |
abb2db1c GM |
177 | "Face for hi-lock mode." |
178 | :group 'hi-lock-faces) | |
179 | ||
180 | (defface hi-black-b | |
181 | '((t (:weight bold))) | |
182 | "Face for hi-lock mode." | |
183 | :group 'hi-lock-faces) | |
184 | ||
185 | (defface hi-blue-b | |
ea81d57e DN |
186 | '((((min-colors 88)) (:weight bold :foreground "blue1")) |
187 | (t (:weight bold :foreground "blue"))) | |
abb2db1c GM |
188 | "Face for hi-lock mode." |
189 | :group 'hi-lock-faces) | |
190 | ||
191 | (defface hi-green-b | |
ea81d57e DN |
192 | '((((min-colors 88)) (:weight bold :foreground "green1")) |
193 | (t (:weight bold :foreground "green"))) | |
abb2db1c GM |
194 | "Face for hi-lock mode." |
195 | :group 'hi-lock-faces) | |
196 | ||
197 | (defface hi-red-b | |
ea81d57e DN |
198 | '((((min-colors 88)) (:weight bold :foreground "red1")) |
199 | (t (:weight bold :foreground "red"))) | |
abb2db1c GM |
200 | "Face for hi-lock mode." |
201 | :group 'hi-lock-faces) | |
202 | ||
203 | (defface hi-black-hb | |
c3b27206 | 204 | '((t (:weight bold :height 1.67 :inherit variable-pitch))) |
abb2db1c GM |
205 | "Face for hi-lock mode." |
206 | :group 'hi-lock-faces) | |
207 | ||
2e4ad7e5 | 208 | (defvar-local hi-lock-file-patterns nil |
abb2db1c | 209 | "Patterns found in file for hi-lock. Should not be changed.") |
2e4ad7e5 | 210 | (put 'hi-lock-file-patterns 'permanent-local t) |
abb2db1c | 211 | |
2e4ad7e5 | 212 | (defvar-local hi-lock-interactive-patterns nil |
abb2db1c | 213 | "Patterns provided to hi-lock by user. Should not be changed.") |
2e4ad7e5 | 214 | (put 'hi-lock-interactive-patterns 'permanent-local t) |
abb2db1c | 215 | |
a52c0aa0 SM |
216 | (define-obsolete-variable-alias 'hi-lock-face-history |
217 | 'hi-lock-face-defaults "23.1") | |
ef705f25 JL |
218 | (defvar hi-lock-face-defaults |
219 | '("hi-yellow" "hi-pink" "hi-green" "hi-blue" "hi-black-b" | |
220 | "hi-blue-b" "hi-red-b" "hi-green-b" "hi-black-hb") | |
221 | "Default faces for hi-lock interactive functions.") | |
abb2db1c | 222 | |
ef705f25 JL |
223 | (define-obsolete-variable-alias 'hi-lock-regexp-history |
224 | 'regexp-history | |
225 | "23.1") | |
abb2db1c GM |
226 | |
227 | (defvar hi-lock-file-patterns-prefix "Hi-lock" | |
c898bef7 | 228 | "Search target for finding hi-lock patterns at top of file.") |
abb2db1c | 229 | |
71060bdd | 230 | (defvar hi-lock-archaic-interface-message-used nil |
90756087 | 231 | "True if user alerted that `global-hi-lock-mode' is now the global switch. |
8b730780 | 232 | Earlier versions of hi-lock used `hi-lock-mode' as the global switch; |
90756087 | 233 | the message is issued if it appears that `hi-lock-mode' is used assuming |
71060bdd EZ |
234 | that older functionality. This variable avoids multiple reminders.") |
235 | ||
236 | (defvar hi-lock-archaic-interface-deduce nil | |
90756087 JL |
237 | "If non-nil, sometimes assume that `hi-lock-mode' means `global-hi-lock-mode'. |
238 | Assumption is made if `hi-lock-mode' used in the *scratch* buffer while | |
71060bdd EZ |
239 | a library is being loaded.") |
240 | ||
b016851c SM |
241 | (defvar hi-lock-menu |
242 | (let ((map (make-sparse-keymap "Hi Lock"))) | |
243 | (define-key-after map [highlight-regexp] | |
244 | '(menu-item "Highlight Regexp..." highlight-regexp | |
245 | :help "Highlight text matching PATTERN (a regexp).")) | |
246 | ||
247 | (define-key-after map [highlight-phrase] | |
248 | '(menu-item "Highlight Phrase..." highlight-phrase | |
249 | :help "Highlight text matching PATTERN (a regexp processed to match phrases).")) | |
250 | ||
251 | (define-key-after map [highlight-lines-matching-regexp] | |
252 | '(menu-item "Highlight Lines..." highlight-lines-matching-regexp | |
253 | :help "Highlight lines containing match of PATTERN (a regexp).")) | |
254 | ||
255 | (define-key-after map [unhighlight-regexp] | |
256 | '(menu-item "Remove Highlighting..." unhighlight-regexp | |
257 | :help "Remove previously entered highlighting pattern." | |
258 | :enable hi-lock-interactive-patterns)) | |
259 | ||
260 | (define-key-after map [hi-lock-write-interactive-patterns] | |
261 | '(menu-item "Patterns to Buffer" hi-lock-write-interactive-patterns | |
262 | :help "Insert interactively added REGEXPs into buffer at point." | |
263 | :enable hi-lock-interactive-patterns)) | |
264 | ||
265 | (define-key-after map [hi-lock-find-patterns] | |
266 | '(menu-item "Patterns from Buffer" hi-lock-find-patterns | |
267 | :help "Use patterns (if any) near top of buffer.")) | |
268 | map) | |
abb2db1c GM |
269 | "Menu for hi-lock mode.") |
270 | ||
b016851c SM |
271 | (defvar hi-lock-map |
272 | (let ((map (make-sparse-keymap "Hi Lock"))) | |
273 | (define-key map "\C-xwi" 'hi-lock-find-patterns) | |
274 | (define-key map "\C-xwl" 'highlight-lines-matching-regexp) | |
275 | (define-key map "\C-xwp" 'highlight-phrase) | |
276 | (define-key map "\C-xwh" 'highlight-regexp) | |
277 | (define-key map "\C-xwr" 'unhighlight-regexp) | |
278 | (define-key map "\C-xwb" 'hi-lock-write-interactive-patterns) | |
279 | map) | |
abb2db1c GM |
280 | "Key map for hi-lock.") |
281 | ||
eb1a6e15 J |
282 | (defvar hi-lock-read-regexp-defaults-function |
283 | 'hi-lock-read-regexp-defaults | |
284 | "Function that provides default regexp(s) for highlighting commands. | |
285 | This function should take no arguments and return one of nil, a | |
286 | regexp or a list of regexps for use with highlighting commands - | |
287 | `hi-lock-face-phrase-buffer', `hi-lock-line-face-buffer' and | |
288 | `hi-lock-face-buffer'. The return value of this function is used | |
289 | as DEFAULTS param of `read-regexp' while executing the | |
290 | highlighting command. This function is called only during | |
291 | interactive use. | |
292 | ||
293 | For example, to highlight at symbol at point use | |
294 | ||
295 | \(setq hi-lock-read-regexp-defaults-function | |
296 | 'find-tag-default-as-regexp\) | |
297 | ||
298 | If you need different defaults for different highlighting | |
299 | operations, use `this-command' to identify the command under | |
300 | execution.") | |
301 | ||
abb2db1c GM |
302 | ;; Visible Functions |
303 | ||
abb2db1c | 304 | ;;;###autoload |
71060bdd | 305 | (define-minor-mode hi-lock-mode |
06e21633 CY |
306 | "Toggle selective highlighting of patterns (Hi Lock mode). |
307 | With a prefix argument ARG, enable Hi Lock mode if ARG is | |
308 | positive, and disable it otherwise. If called from Lisp, enable | |
309 | the mode if ARG is omitted or nil. | |
310 | ||
a9f6f311 CY |
311 | Hi Lock mode is automatically enabled when you invoke any of the |
312 | highlighting commands listed below, such as \\[highlight-regexp]. | |
313 | To enable Hi Lock mode in all buffers, use `global-hi-lock-mode' | |
314 | or add (global-hi-lock-mode 1) to your init file. | |
315 | ||
316 | In buffers where Font Lock mode is enabled, patterns are | |
317 | highlighted using font lock. In buffers where Font Lock mode is | |
318 | disabled, patterns are applied using overlays; in this case, the | |
319 | highlighting will not be updated as you type. | |
320 | ||
321 | When Hi Lock mode is enabled, a \"Regexp Highlighting\" submenu | |
322 | is added to the \"Edit\" menu. The commands in the submenu, | |
323 | which can be called interactively, are: | |
abb2db1c GM |
324 | |
325 | \\[highlight-regexp] REGEXP FACE | |
326 | Highlight matches of pattern REGEXP in current buffer with FACE. | |
327 | ||
108ee42b GM |
328 | \\[highlight-phrase] PHRASE FACE |
329 | Highlight matches of phrase PHRASE in current buffer with FACE. | |
330 | (PHRASE can be any REGEXP, but spaces will be replaced by matches | |
331 | to whitespace and initial lower-case letters will become case insensitive.) | |
71296446 | 332 | |
abb2db1c GM |
333 | \\[highlight-lines-matching-regexp] REGEXP FACE |
334 | Highlight lines containing matches of REGEXP in current buffer with FACE. | |
335 | ||
336 | \\[unhighlight-regexp] REGEXP | |
337 | Remove highlighting on matches of REGEXP in current buffer. | |
338 | ||
339 | \\[hi-lock-write-interactive-patterns] | |
c898bef7 | 340 | Write active REGEXPs into buffer as comments (if possible). They may |
abb2db1c GM |
341 | be read the next time file is loaded or when the \\[hi-lock-find-patterns] command |
342 | is issued. The inserted regexps are in the form of font lock keywords. | |
ee44464c | 343 | (See `font-lock-keywords'.) They may be edited and re-loaded with \\[hi-lock-find-patterns], |
869d3e17 JB |
344 | any valid `font-lock-keywords' form is acceptable. When a file is |
345 | loaded the patterns are read if `hi-lock-file-patterns-policy' is | |
c898bef7 CY |
346 | 'ask and the user responds y to the prompt, or if |
347 | `hi-lock-file-patterns-policy' is bound to a function and that | |
348 | function returns t. | |
abb2db1c GM |
349 | |
350 | \\[hi-lock-find-patterns] | |
351 | Re-read patterns stored in buffer (in the format produced by \\[hi-lock-write-interactive-patterns]). | |
352 | ||
c898bef7 CY |
353 | When hi-lock is started and if the mode is not excluded or patterns |
354 | rejected, the beginning of the buffer is searched for lines of the | |
355 | form: | |
abb2db1c | 356 | Hi-lock: FOO |
a9f6f311 CY |
357 | |
358 | where FOO is a list of patterns. The patterns must start before | |
359 | position \(number of characters into buffer) | |
360 | `hi-lock-file-patterns-range'. Patterns will be read until | |
361 | Hi-lock: end is found. A mode is excluded if it's in the list | |
362 | `hi-lock-exclude-modes'." | |
963b2040 | 363 | :group 'hi-lock |
90756087 JL |
364 | :lighter (:eval (if (or hi-lock-interactive-patterns |
365 | hi-lock-file-patterns) | |
366 | " Hi" "")) | |
963b2040 CY |
367 | :global nil |
368 | :keymap hi-lock-map | |
71060bdd EZ |
369 | (when (and (equal (buffer-name) "*scratch*") |
370 | load-in-progress | |
32226619 | 371 | (not (called-interactively-p 'interactive)) |
71060bdd EZ |
372 | (not hi-lock-archaic-interface-message-used)) |
373 | (setq hi-lock-archaic-interface-message-used t) | |
374 | (if hi-lock-archaic-interface-deduce | |
375 | (global-hi-lock-mode hi-lock-mode) | |
376 | (warn | |
377 | "Possible archaic use of (hi-lock-mode). | |
378 | Use (global-hi-lock-mode 1) in .emacs to enable hi-lock for all buffers, | |
90756087 | 379 | use (hi-lock-mode 1) for individual buffers. For compatibility with Emacs |
865fe16f | 380 | versions before 22 use the following in your init file: |
71060bdd EZ |
381 | |
382 | (if (functionp 'global-hi-lock-mode) | |
383 | (global-hi-lock-mode 1) | |
384 | (hi-lock-mode 1)) | |
385 | "))) | |
386 | (if hi-lock-mode | |
963b2040 CY |
387 | ;; Turned on. |
388 | (progn | |
389 | (define-key-after menu-bar-edit-menu [hi-lock] | |
390 | (cons "Regexp Highlighting" hi-lock-menu)) | |
391 | (hi-lock-find-patterns) | |
2bd8a4a8 SM |
392 | (add-hook 'font-lock-mode-hook 'hi-lock-font-lock-hook nil t) |
393 | ;; Remove regexps from font-lock-keywords (bug#13891). | |
394 | (add-hook 'change-major-mode-hook (lambda () (hi-lock-mode -1)) nil t)) | |
abb2db1c | 395 | ;; Turned off. |
e4d59066 CY |
396 | (when (or hi-lock-interactive-patterns |
397 | hi-lock-file-patterns) | |
71060bdd | 398 | (when hi-lock-interactive-patterns |
e4d59066 CY |
399 | (font-lock-remove-keywords nil hi-lock-interactive-patterns) |
400 | (setq hi-lock-interactive-patterns nil)) | |
401 | (when hi-lock-file-patterns | |
402 | (font-lock-remove-keywords nil hi-lock-file-patterns) | |
403 | (setq hi-lock-file-patterns nil)) | |
81dc5714 JL |
404 | (remove-overlays nil nil 'hi-lock-overlay t) |
405 | (when font-lock-fontified (font-lock-fontify-buffer))) | |
963b2040 CY |
406 | (define-key-after menu-bar-edit-menu [hi-lock] nil) |
407 | (remove-hook 'font-lock-mode-hook 'hi-lock-font-lock-hook t))) | |
abb2db1c | 408 | |
963b2040 | 409 | ;;;###autoload |
98007d83 | 410 | (define-globalized-minor-mode global-hi-lock-mode |
71060bdd | 411 | hi-lock-mode turn-on-hi-lock-if-enabled |
9cb4bb45 | 412 | :group 'hi-lock) |
71060bdd | 413 | |
963b2040 | 414 | (defun turn-on-hi-lock-if-enabled () |
71060bdd | 415 | (setq hi-lock-archaic-interface-message-used t) |
963b2040 | 416 | (unless (memq major-mode hi-lock-exclude-modes) |
71060bdd | 417 | (hi-lock-mode 1))) |
abb2db1c GM |
418 | |
419 | ;;;###autoload | |
420 | (defalias 'highlight-lines-matching-regexp 'hi-lock-line-face-buffer) | |
421 | ;;;###autoload | |
422 | (defun hi-lock-line-face-buffer (regexp &optional face) | |
108ee42b | 423 | "Set face of all lines containing a match of REGEXP to FACE. |
eb1a6e15 J |
424 | Interactively, prompt for REGEXP then FACE. Use |
425 | `hi-lock-read-regexp-defaults-function' to retrieve default | |
426 | value(s) of REGEXP. Use the global history list for FACE. | |
abb2db1c | 427 | |
eb1a6e15 J |
428 | Use Font lock mode, if enabled, to highlight REGEXP. Otherwise, |
429 | use overlays for highlighting. If overlays are used, the | |
430 | highlighting will not update as you type." | |
abb2db1c GM |
431 | (interactive |
432 | (list | |
8677dea3 | 433 | (hi-lock-regexp-okay |
eb1a6e15 J |
434 | (read-regexp "Regexp to highlight line" |
435 | (funcall hi-lock-read-regexp-defaults-function))) | |
abb2db1c | 436 | (hi-lock-read-face-name))) |
597767da | 437 | (or (facep face) (setq face 'hi-yellow)) |
71060bdd | 438 | (unless hi-lock-mode (hi-lock-mode 1)) |
abb2db1c | 439 | (hi-lock-set-pattern |
b18f5523 SM |
440 | ;; The \\(?:...\\) grouping construct ensures that a leading ^, +, * or ? |
441 | ;; or a trailing $ in REGEXP will be interpreted correctly. | |
963b2040 | 442 | (concat "^.*\\(?:" regexp "\\).*$") face)) |
abb2db1c | 443 | |
108ee42b | 444 | |
abb2db1c GM |
445 | ;;;###autoload |
446 | (defalias 'highlight-regexp 'hi-lock-face-buffer) | |
447 | ;;;###autoload | |
448 | (defun hi-lock-face-buffer (regexp &optional face) | |
108ee42b | 449 | "Set face of each match of REGEXP to FACE. |
eb1a6e15 J |
450 | Interactively, prompt for REGEXP then FACE. Use |
451 | `hi-lock-read-regexp-defaults-function' to retrieve default | |
452 | value(s) REGEXP. Use the global history list for FACE. | |
abb2db1c | 453 | |
eb1a6e15 J |
454 | Use Font lock mode, if enabled, to highlight REGEXP. Otherwise, |
455 | use overlays for highlighting. If overlays are used, the | |
456 | highlighting will not update as you type." | |
abb2db1c GM |
457 | (interactive |
458 | (list | |
8677dea3 | 459 | (hi-lock-regexp-okay |
eb1a6e15 J |
460 | (read-regexp "Regexp to highlight" |
461 | (funcall hi-lock-read-regexp-defaults-function))) | |
abb2db1c | 462 | (hi-lock-read-face-name))) |
597767da | 463 | (or (facep face) (setq face 'hi-yellow)) |
71060bdd | 464 | (unless hi-lock-mode (hi-lock-mode 1)) |
963b2040 | 465 | (hi-lock-set-pattern regexp face)) |
abb2db1c | 466 | |
108ee42b GM |
467 | ;;;###autoload |
468 | (defalias 'highlight-phrase 'hi-lock-face-phrase-buffer) | |
469 | ;;;###autoload | |
470 | (defun hi-lock-face-phrase-buffer (regexp &optional face) | |
471 | "Set face of each match of phrase REGEXP to FACE. | |
eb1a6e15 J |
472 | Interactively, prompt for REGEXP then FACE. Use |
473 | `hi-lock-read-regexp-defaults-function' to retrieve default | |
474 | value(s) of REGEXP. Use the global history list for FACE. When | |
475 | called interactively, replace whitespace in user provided regexp | |
476 | with arbitrary whitespace and make initial lower-case letters | |
477 | case-insensitive before highlighting with `hi-lock-set-pattern'. | |
478 | ||
479 | Use Font lock mode, if enabled, to highlight REGEXP. Otherwise, | |
480 | use overlays for highlighting. If overlays are used, the | |
481 | highlighting will not update as you type." | |
108ee42b GM |
482 | (interactive |
483 | (list | |
484 | (hi-lock-regexp-okay | |
485 | (hi-lock-process-phrase | |
eb1a6e15 J |
486 | (read-regexp "Phrase to highlight" |
487 | (funcall hi-lock-read-regexp-defaults-function)))) | |
108ee42b | 488 | (hi-lock-read-face-name))) |
597767da | 489 | (or (facep face) (setq face 'hi-yellow)) |
71060bdd | 490 | (unless hi-lock-mode (hi-lock-mode 1)) |
963b2040 | 491 | (hi-lock-set-pattern regexp face)) |
108ee42b | 492 | |
c868b919 J |
493 | (defun hi-lock-keyword->face (keyword) |
494 | (cadr (cadr (cadr keyword)))) ; Keyword looks like (REGEXP (0 'FACE) ...). | |
495 | ||
e8a11b22 | 496 | (declare-function x-popup-menu "menu.c" (position menu)) |
f2d9c15f | 497 | |
b85aec93 J |
498 | (defun hi-lock--regexps-at-point () |
499 | (let ((regexps '())) | |
500 | ;; When using overlays, there is no ambiguity on the best | |
501 | ;; choice of regexp. | |
853c1ffc SM |
502 | (let ((regexp (get-char-property (point) 'hi-lock-overlay-regexp))) |
503 | (when regexp (push regexp regexps))) | |
c868b919 | 504 | ;; With font-locking on, check if the cursor is on a highlighted text. |
ed6f2cd4 SM |
505 | (let ((face-after (get-text-property (point) 'face)) |
506 | (face-before | |
507 | (unless (bobp) (get-text-property (1- (point)) 'face))) | |
508 | (faces (mapcar #'hi-lock-keyword->face | |
509 | hi-lock-interactive-patterns))) | |
510 | (unless (memq face-before faces) (setq face-before nil)) | |
511 | (unless (memq face-after faces) (setq face-after nil)) | |
512 | (when (and face-before face-after (not (eq face-before face-after))) | |
513 | (setq face-before nil)) | |
514 | (when (or face-after face-before) | |
515 | (let* ((hi-text | |
516 | (buffer-substring-no-properties | |
517 | (if face-before | |
518 | (or (previous-single-property-change (point) 'face) | |
519 | (point-min)) | |
520 | (point)) | |
521 | (if face-after | |
522 | (or (next-single-property-change (point) 'face) | |
523 | (point-max)) | |
524 | (point))))) | |
525 | ;; Compute hi-lock patterns that match the | |
526 | ;; highlighted text at point. Use this later in | |
527 | ;; during completing-read. | |
528 | (dolist (hi-lock-pattern hi-lock-interactive-patterns) | |
529 | (let ((regexp (car hi-lock-pattern))) | |
530 | (if (string-match regexp hi-text) | |
531 | (push regexp regexps))))))) | |
2e4ad7e5 | 532 | regexps)) |
b85aec93 | 533 | |
c868b919 J |
534 | (defvar-local hi-lock--unused-faces nil |
535 | "List of faces that is not used and is available for highlighting new text. | |
536 | Face names from this list come from `hi-lock-face-defaults'.") | |
853c1ffc | 537 | |
abb2db1c GM |
538 | ;;;###autoload |
539 | (defalias 'unhighlight-regexp 'hi-lock-unface-buffer) | |
540 | ;;;###autoload | |
541 | (defun hi-lock-unface-buffer (regexp) | |
108ee42b | 542 | "Remove highlighting of each match to REGEXP set by hi-lock. |
a9f6f311 | 543 | Interactively, prompt for REGEXP, accepting only regexps |
b85aec93 J |
544 | previously inserted by hi-lock interactive functions. |
545 | If REGEXP is t (or if \\[universal-argument] was specified interactively), | |
546 | then remove all hi-lock highlighting." | |
abb2db1c | 547 | (interactive |
b85aec93 J |
548 | (cond |
549 | (current-prefix-arg (list t)) | |
550 | ((and (display-popup-menus-p) | |
551 | (listp last-nonmenu-event) | |
552 | use-dialog-box) | |
553 | (catch 'snafu | |
554 | (or | |
555 | (x-popup-menu | |
556 | t | |
557 | (cons | |
558 | `keymap | |
559 | (cons "Select Pattern to Unhighlight" | |
560 | (mapcar (lambda (pattern) | |
561 | (list (car pattern) | |
562 | (format | |
563 | "%s (%s)" (car pattern) | |
c868b919 | 564 | (hi-lock-keyword->face pattern)) |
b85aec93 J |
565 | (cons nil nil) |
566 | (car pattern))) | |
567 | hi-lock-interactive-patterns)))) | |
568 | ;; If the user clicks outside the menu, meaning that they | |
569 | ;; change their mind, x-popup-menu returns nil, and | |
570 | ;; interactive signals a wrong number of arguments error. | |
571 | ;; To prevent that, we return an empty string, which will | |
572 | ;; effectively disable the rest of the function. | |
573 | (throw 'snafu '(""))))) | |
574 | (t | |
575 | ;; Un-highlighting triggered via keyboard action. | |
576 | (unless hi-lock-interactive-patterns | |
577 | (error "No highlighting to remove")) | |
578 | ;; Infer the regexp to un-highlight based on cursor position. | |
2e4ad7e5 SM |
579 | (let* ((defaults (or (hi-lock--regexps-at-point) |
580 | (mapcar #'car hi-lock-interactive-patterns)))) | |
abb2db1c | 581 | (list |
b85aec93 J |
582 | (completing-read (if (null defaults) |
583 | "Regexp to unhighlight: " | |
584 | (format "Regexp to unhighlight (default %s): " | |
585 | (car defaults))) | |
586 | hi-lock-interactive-patterns | |
587 | nil t nil nil defaults)))))) | |
588 | (dolist (keyword (if (eq regexp t) hi-lock-interactive-patterns | |
589 | (list (assoc regexp hi-lock-interactive-patterns)))) | |
abb2db1c | 590 | (when keyword |
c868b919 | 591 | (let ((face (hi-lock-keyword->face keyword))) |
853c1ffc | 592 | ;; Make `face' the next one to use by default. |
b2dc4f52 SM |
593 | (when (symbolp face) ;Don't add it if it's a list (bug#13297). |
594 | (add-to-list 'hi-lock--unused-faces (face-name face)))) | |
abb2db1c GM |
595 | (font-lock-remove-keywords nil (list keyword)) |
596 | (setq hi-lock-interactive-patterns | |
597 | (delq keyword hi-lock-interactive-patterns)) | |
81dc5714 | 598 | (remove-overlays |
c868b919 | 599 | nil nil 'hi-lock-overlay-regexp (hi-lock--hashcons (car keyword))) |
81dc5714 | 600 | (when font-lock-fontified (font-lock-fontify-buffer))))) |
abb2db1c GM |
601 | |
602 | ;;;###autoload | |
603 | (defun hi-lock-write-interactive-patterns () | |
604 | "Write interactively added patterns, if any, into buffer at point. | |
605 | ||
606 | Interactively added patterns are those normally specified using | |
607 | `highlight-regexp' and `highlight-lines-matching-regexp'; they can | |
608 | be found in variable `hi-lock-interactive-patterns'." | |
609 | (interactive) | |
597767da CY |
610 | (if (null hi-lock-interactive-patterns) |
611 | (error "There are no interactive patterns")) | |
612 | (let ((beg (point))) | |
ee44464c | 613 | (mapc |
abb2db1c | 614 | (lambda (pattern) |
90756087 JL |
615 | (insert (format "%s: (%s)\n" |
616 | hi-lock-file-patterns-prefix | |
617 | (prin1-to-string pattern)))) | |
597767da CY |
618 | hi-lock-interactive-patterns) |
619 | (comment-region beg (point))) | |
620 | (when (> (point) hi-lock-file-patterns-range) | |
621 | (warn "Inserted keywords not close enough to top of file"))) | |
abb2db1c GM |
622 | |
623 | ;; Implementation Functions | |
624 | ||
108ee42b GM |
625 | (defun hi-lock-process-phrase (phrase) |
626 | "Convert regexp PHRASE to a regexp that matches phrases. | |
627 | ||
628 | Blanks in PHRASE replaced by regexp that matches arbitrary whitespace | |
629 | and initial lower-case letters made case insensitive." | |
630 | (let ((mod-phrase nil)) | |
82ed3ab4 | 631 | ;; FIXME fragile; better to just bind case-fold-search? (Bug#7161) |
108ee42b GM |
632 | (setq mod-phrase |
633 | (replace-regexp-in-string | |
1595ecfa GM |
634 | "\\(^\\|\\s-\\)\\([a-z]\\)" |
635 | (lambda (m) (format "%s[%s%s]" | |
636 | (match-string 1 m) | |
637 | (upcase (match-string 2 m)) | |
638 | (match-string 2 m))) phrase)) | |
82ed3ab4 | 639 | ;; FIXME fragile; better to use search-spaces-regexp? |
108ee42b GM |
640 | (setq mod-phrase |
641 | (replace-regexp-in-string | |
642 | "\\s-+" "[ \t\n]+" mod-phrase nil t)))) | |
643 | ||
abb2db1c GM |
644 | (defun hi-lock-regexp-okay (regexp) |
645 | "Return REGEXP if it appears suitable for a font-lock pattern. | |
646 | ||
647 | Otherwise signal an error. A pattern that matches the null string is | |
648 | not suitable." | |
649 | (if (string-match regexp "") | |
650 | (error "Regexp cannot match an empty string") | |
651 | regexp)) | |
652 | ||
eb1a6e15 J |
653 | (defun hi-lock-read-regexp-defaults () |
654 | "Return the latest regexp from `regexp-history'. | |
655 | See `hi-lock-read-regexp-defaults-function' for details." | |
656 | (car regexp-history)) | |
657 | ||
abb2db1c | 658 | (defun hi-lock-read-face-name () |
853c1ffc | 659 | "Return face for interactive highlighting. |
b85aec93 J |
660 | When `hi-lock-auto-select-face' is non-nil, just return the next face. |
661 | Otherwise, read face name from minibuffer with completion and history." | |
c868b919 J |
662 | (unless hi-lock-interactive-patterns |
663 | (setq hi-lock--unused-faces hi-lock-face-defaults)) | |
664 | (let* ((last-used-face | |
665 | (when hi-lock-interactive-patterns | |
666 | (face-name (hi-lock-keyword->face | |
667 | (car hi-lock-interactive-patterns))))) | |
668 | (defaults (append hi-lock--unused-faces | |
669 | (cdr (member last-used-face hi-lock-face-defaults)) | |
670 | hi-lock-face-defaults)) | |
671 | face) | |
853c1ffc | 672 | (if (and hi-lock-auto-select-face (not current-prefix-arg)) |
c868b919 J |
673 | (setq face (or (pop hi-lock--unused-faces) (car defaults))) |
674 | (setq face (completing-read | |
675 | (format "Highlight using face (default %s): " | |
676 | (car defaults)) | |
677 | obarray 'facep t nil 'face-name-history defaults)) | |
678 | ;; Update list of un-used faces. | |
679 | (setq hi-lock--unused-faces (remove face hi-lock--unused-faces)) | |
680 | ;; Grow the list of defaults. | |
681 | (add-to-list 'hi-lock-face-defaults face t)) | |
682 | (intern face))) | |
abb2db1c | 683 | |
963b2040 CY |
684 | (defun hi-lock-set-pattern (regexp face) |
685 | "Highlight REGEXP with face FACE." | |
853c1ffc SM |
686 | ;; Hashcons the regexp, so it can be passed to remove-overlays later. |
687 | (setq regexp (hi-lock--hashcons regexp)) | |
c58059f2 | 688 | (let ((pattern (list regexp (list 0 (list 'quote face) t)))) |
c868b919 J |
689 | ;; Refuse to highlight a text that is already highlighted. |
690 | (unless (assoc regexp hi-lock-interactive-patterns) | |
963b2040 | 691 | (push pattern hi-lock-interactive-patterns) |
a9f6f311 | 692 | (if font-lock-mode |
c58059f2 DK |
693 | (progn |
694 | (font-lock-add-keywords nil (list pattern) t) | |
695 | (font-lock-fontify-buffer)) | |
853c1ffc | 696 | (let* ((range-min (- (point) (/ hi-lock-highlight-range 2))) |
81dc5714 JL |
697 | (range-max (+ (point) (/ hi-lock-highlight-range 2))) |
698 | (search-start | |
699 | (max (point-min) | |
700 | (- range-min (max 0 (- range-max (point-max)))))) | |
701 | (search-end | |
702 | (min (point-max) | |
703 | (+ range-max (max 0 (- (point-min) range-min)))))) | |
704 | (save-excursion | |
705 | (goto-char search-start) | |
706 | (while (re-search-forward regexp search-end t) | |
707 | (let ((overlay (make-overlay (match-beginning 0) (match-end 0)))) | |
708 | (overlay-put overlay 'hi-lock-overlay t) | |
853c1ffc | 709 | (overlay-put overlay 'hi-lock-overlay-regexp regexp) |
81dc5714 JL |
710 | (overlay-put overlay 'face face)) |
711 | (goto-char (match-end 0))))))))) | |
abb2db1c GM |
712 | |
713 | (defun hi-lock-set-file-patterns (patterns) | |
714 | "Replace file patterns list with PATTERNS and refontify." | |
108ee42b GM |
715 | (when (or hi-lock-file-patterns patterns) |
716 | (font-lock-remove-keywords nil hi-lock-file-patterns) | |
717 | (setq hi-lock-file-patterns patterns) | |
90756087 | 718 | (font-lock-add-keywords nil hi-lock-file-patterns t) |
e4d59066 | 719 | (font-lock-fontify-buffer))) |
abb2db1c GM |
720 | |
721 | (defun hi-lock-find-patterns () | |
722 | "Find patterns in current buffer for hi-lock." | |
723 | (interactive) | |
724 | (unless (memq major-mode hi-lock-exclude-modes) | |
725 | (let ((all-patterns nil) | |
726 | (target-regexp (concat "\\<" hi-lock-file-patterns-prefix ":"))) | |
727 | (save-excursion | |
62cec9fe SM |
728 | (save-restriction |
729 | (widen) | |
730 | (goto-char (point-min)) | |
731 | (re-search-forward target-regexp | |
732 | (+ (point) hi-lock-file-patterns-range) t) | |
733 | (beginning-of-line) | |
734 | (while (and (re-search-forward target-regexp (+ (point) 100) t) | |
735 | (not (looking-at "\\s-*end"))) | |
ed6773fa JB |
736 | (condition-case nil |
737 | (setq all-patterns (append (read (current-buffer)) all-patterns)) | |
738 | (error (message "Invalid pattern list expression at %d" | |
963b2040 | 739 | (line-number-at-pos))))))) |
c898bef7 CY |
740 | (when (and all-patterns |
741 | hi-lock-mode | |
742 | (cond | |
743 | ((eq this-command 'hi-lock-find-patterns) t) | |
744 | ((functionp hi-lock-file-patterns-policy) | |
745 | (funcall hi-lock-file-patterns-policy all-patterns)) | |
746 | ((eq hi-lock-file-patterns-policy 'ask) | |
747 | (y-or-n-p "Add patterns from this buffer to hi-lock? ")) | |
748 | (t nil))) | |
749 | (hi-lock-set-file-patterns all-patterns) | |
32226619 | 750 | (if (called-interactively-p 'interactive) |
c898bef7 | 751 | (message "Hi-lock added %d patterns." (length all-patterns))))))) |
abb2db1c GM |
752 | |
753 | (defun hi-lock-font-lock-hook () | |
8b730780 | 754 | "Add hi-lock patterns to font-lock's." |
c58059f2 DK |
755 | (when font-lock-fontified |
756 | (font-lock-add-keywords nil hi-lock-file-patterns t) | |
757 | (font-lock-add-keywords nil hi-lock-interactive-patterns t))) | |
abb2db1c | 758 | |
853c1ffc SM |
759 | (defvar hi-lock--hashcons-hash |
760 | (make-hash-table :test 'equal :weakness t) | |
761 | "Hash table used to hash cons regexps.") | |
81dc5714 | 762 | |
853c1ffc SM |
763 | (defun hi-lock--hashcons (string) |
764 | "Return unique object equal to STRING." | |
765 | (or (gethash string hi-lock--hashcons-hash) | |
766 | (puthash string string hi-lock--hashcons-hash))) | |
81dc5714 | 767 | |
869d3e17 JB |
768 | (defun hi-lock-unload-function () |
769 | "Unload the Hi-Lock library." | |
770 | (global-hi-lock-mode -1) | |
771 | ;; continue standard unloading | |
772 | nil) | |
773 | ||
abb2db1c GM |
774 | (provide 'hi-lock) |
775 | ||
776 | ;;; hi-lock.el ends here |