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ba83908c | 1 | ;;; css-mode.el --- Major mode to edit CSS files -*- lexical-binding: t -*- |
d500a092 | 2 | |
73b0cd50 | 3 | ;; Copyright (C) 2006-2011 Free Software Foundation, Inc. |
d500a092 SM |
4 | |
5 | ;; Author: Stefan Monnier <monnier@iro.umontreal.ca> | |
6 | ;; Keywords: hypermedia | |
7 | ||
1fecc8fe GM |
8 | ;; This file is part of GNU Emacs. |
9 | ||
10 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
d500a092 | 11 | ;; it under the terms of the GNU General Public License as published by |
1fecc8fe GM |
12 | ;; the Free Software Foundation, either version 3 of the License, or |
13 | ;; (at your option) any later version. | |
d500a092 | 14 | |
1fecc8fe | 15 | ;; GNU Emacs is distributed in the hope that it will be useful, |
d500a092 SM |
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 | |
1fecc8fe | 21 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
d500a092 SM |
22 | |
23 | ;;; Commentary: | |
24 | ||
25 | ;; Yet another CSS mode. | |
26 | ||
27 | ;;; Todo: | |
28 | ||
29 | ;; - electric ; and } | |
30 | ;; - filling code with auto-fill-mode | |
31 | ;; - completion | |
32 | ;; - fix font-lock errors with multi-line selectors | |
33 | ||
34 | ;;; Code: | |
35 | ||
96736d92 GM |
36 | (defgroup css nil |
37 | "Cascading Style Sheets (CSS) editing mode." | |
38 | :group 'languages) | |
39 | ||
088d6743 SM |
40 | (eval-when-compile (require 'cl)) |
41 | ||
d500a092 SM |
42 | (defun css-extract-keyword-list (res) |
43 | (with-temp-buffer | |
44 | (url-insert-file-contents "http://www.w3.org/TR/REC-CSS2/css2.txt") | |
45 | (goto-char (point-max)) | |
46 | (search-backward "Appendix H. Index") | |
47 | (forward-line) | |
48 | (delete-region (point-min) (point)) | |
49 | (let ((result nil) | |
50 | keys) | |
51 | (dolist (re res) | |
52 | (goto-char (point-min)) | |
53 | (setq keys nil) | |
54 | (while (re-search-forward (cdr re) nil t) | |
55 | (push (match-string 1) keys)) | |
56 | (push (cons (car re) (sort keys 'string-lessp)) result)) | |
57 | (nreverse result)))) | |
58 | ||
59 | (defun css-extract-parse-val-grammar (string env) | |
60 | (let ((start 0) | |
61 | (elems ()) | |
62 | name) | |
63 | (while (string-match | |
64 | (concat "\\(?:" | |
65 | (concat "<a [^>]+><span [^>]+>\\(?:" | |
66 | "<\\([^&]+\\)>\\|'\\([^']+\\)'" | |
67 | "\\)</span></a>") | |
68 | "\\|" "\\(\\[\\)" | |
69 | "\\|" "\\(]\\)" | |
70 | "\\|" "\\(||\\)" | |
71 | "\\|" "\\(|\\)" | |
72 | "\\|" "\\([*+?]\\)" | |
73 | "\\|" "\\({[^}]+}\\)" | |
74 | "\\|" "\\(\\w+\\(?:-\\w+\\)*\\)" | |
75 | "\\)[ \t\n]*") | |
76 | string start) | |
77 | ;; (assert (eq start (match-beginning 0))) | |
78 | (setq start (match-end 0)) | |
79 | (cond | |
80 | ;; Reference to a type of value. | |
81 | ((setq name (match-string-no-properties 1 string)) | |
82 | (push (intern name) elems)) | |
83 | ;; Reference to another property's values. | |
84 | ((setq name (match-string-no-properties 2 string)) | |
85 | (setq elems (delete-dups (append (cdr (assoc name env)) elems)))) | |
86 | ;; A literal | |
87 | ((setq name (match-string-no-properties 9 string)) | |
88 | (push name elems)) | |
89 | ;; We just ignore the rest. I.e. we ignore the structure because | |
90 | ;; it's too difficult to exploit anyway (it would allow us to only | |
91 | ;; complete top/center/bottom after one of left/center/right and | |
92 | ;; vice-versa). | |
93 | (t nil))) | |
94 | elems)) | |
9e3fd593 | 95 | |
d500a092 SM |
96 | |
97 | (defun css-extract-props-and-vals () | |
98 | (with-temp-buffer | |
99 | (url-insert-file-contents "http://www.w3.org/TR/CSS21/propidx.html") | |
100 | (goto-char (point-min)) | |
101 | (let ((props ())) | |
102 | (while (re-search-forward "#propdef-\\([^\"]+\\)\"><span class=\"propinst-\\1 xref\">'\\1'</span></a>" nil t) | |
103 | (let ((prop (match-string-no-properties 1))) | |
104 | (save-excursion | |
105 | (goto-char (match-end 0)) | |
106 | (search-forward "<td>") | |
107 | (let ((vals-string (buffer-substring (point) | |
108 | (progn | |
109 | (re-search-forward "[ \t\n]+|[ \t\n]+<a href=\"cascade.html#value-def-inherit\" class=\"noxref\"><span class=\"value-inst-inherit\">inherit</span></a>") | |
110 | (match-beginning 0))))) | |
9e3fd593 | 111 | ;; |
d500a092 SM |
112 | (push (cons prop (css-extract-parse-val-grammar vals-string props)) |
113 | props))))) | |
114 | props))) | |
115 | ||
116 | ;; Extraction was done with: | |
117 | ;; (css-extract-keyword-list | |
118 | ;; '((pseudo . "^ +\\* :\\([^ \n,]+\\)") | |
119 | ;; (at . "^ +\\* @\\([^ \n,]+\\)") | |
120 | ;; (descriptor . "^ +\\* '\\([^ '\n]+\\)' (descriptor)") | |
121 | ;; (media . "^ +\\* '\\([^ '\n]+\\)' media group") | |
122 | ;; (property . "^ +\\* '\\([^ '\n]+\\)',"))) | |
123 | ||
124 | (defconst css-pseudo-ids | |
125 | '("active" "after" "before" "first" "first-child" "first-letter" "first-line" | |
126 | "focus" "hover" "lang" "left" "link" "right" "visited") | |
127 | "Identifiers for pseudo-elements and pseudo-classes.") | |
128 | ||
129 | (defconst css-at-ids | |
130 | '("charset" "font-face" "import" "media" "page") | |
131 | "Identifiers that appear in the form @foo.") | |
132 | ||
133 | (defconst css-descriptor-ids | |
134 | '("ascent" "baseline" "bbox" "cap-height" "centerline" "definition-src" | |
135 | "descent" "font-family" "font-size" "font-stretch" "font-style" | |
136 | "font-variant" "font-weight" "mathline" "panose-1" "slope" "src" "stemh" | |
137 | "stemv" "topline" "unicode-range" "units-per-em" "widths" "x-height") | |
138 | "Identifiers for font descriptors.") | |
139 | ||
140 | (defconst css-media-ids | |
141 | '("all" "aural" "bitmap" "continuous" "grid" "paged" "static" "tactile" | |
142 | "visual") | |
143 | "Identifiers for types of media.") | |
144 | ||
145 | (defconst css-property-ids | |
146 | '("azimuth" "background" "background-attachment" "background-color" | |
147 | "background-image" "background-position" "background-repeat" "block" | |
148 | "border" "border-bottom" "border-bottom-color" "border-bottom-style" | |
149 | "border-bottom-width" "border-collapse" "border-color" "border-left" | |
150 | "border-left-color" "border-left-style" "border-left-width" "border-right" | |
151 | "border-right-color" "border-right-style" "border-right-width" | |
152 | "border-spacing" "border-style" "border-top" "border-top-color" | |
153 | "border-top-style" "border-top-width" "border-width" "bottom" | |
154 | "caption-side" "clear" "clip" "color" "compact" "content" | |
155 | "counter-increment" "counter-reset" "cue" "cue-after" "cue-before" | |
156 | "cursor" "dashed" "direction" "display" "dotted" "double" "elevation" | |
157 | "empty-cells" "float" "font" "font-family" "font-size" "font-size-adjust" | |
158 | "font-stretch" "font-style" "font-variant" "font-weight" "groove" "height" | |
159 | "hidden" "inline" "inline-table" "inset" "left" "letter-spacing" | |
160 | "line-height" "list-item" "list-style" "list-style-image" | |
161 | "list-style-position" "list-style-type" "margin" "margin-bottom" | |
162 | "margin-left" "margin-right" "margin-top" "marker-offset" "marks" | |
163 | "max-height" "max-width" "min-height" "min-width" "orphans" "outline" | |
164 | "outline-color" "outline-style" "outline-width" "outset" "overflow" | |
165 | "padding" "padding-bottom" "padding-left" "padding-right" "padding-top" | |
166 | "page" "page-break-after" "page-break-before" "page-break-inside" "pause" | |
167 | "pause-after" "pause-before" "pitch" "pitch-range" "play-during" "position" | |
168 | "quotes" "richness" "ridge" "right" "run-in" "size" "solid" "speak" | |
169 | "speak-header" "speak-numeral" "speak-punctuation" "speech-rate" "stress" | |
170 | "table" "table-caption" "table-cell" "table-column" "table-column-group" | |
171 | "table-footer-group" "table-header-group" "table-layout" "table-row" | |
172 | "table-row-group" "text-align" "text-decoration" "text-indent" | |
173 | "text-shadow" "text-transform" "top" "unicode-bidi" "vertical-align" | |
174 | "visibility" "voice-family" "volume" "white-space" "widows" "width" | |
175 | "word-spacing" "z-index") | |
176 | "Identifiers for properties.") | |
177 | ||
fb7d9275 | 178 | (defcustom css-electric-keys '(?\} ?\;) ;; '() |
d500a092 | 179 | "Self inserting keys which should trigger re-indentation." |
8e788369 | 180 | :version "22.2" |
d500a092 | 181 | :type '(repeat character) |
96736d92 GM |
182 | :options '((?\} ?\;)) |
183 | :group 'css) | |
d500a092 SM |
184 | |
185 | (defvar css-mode-syntax-table | |
186 | (let ((st (make-syntax-table))) | |
187 | ;; C-style comments. | |
188 | (modify-syntax-entry ?/ ". 14" st) | |
189 | (modify-syntax-entry ?* ". 23" st) | |
190 | ;; Strings. | |
191 | (modify-syntax-entry ?\" "\"" st) | |
192 | (modify-syntax-entry ?\' "\"" st) | |
193 | ;; Blocks. | |
194 | (modify-syntax-entry ?\{ "(}" st) | |
195 | (modify-syntax-entry ?\} "){" st) | |
196 | ;; Args in url(...) thingies and other "function calls". | |
197 | (modify-syntax-entry ?\( "()" st) | |
198 | (modify-syntax-entry ?\) ")(" st) | |
199 | ;; To match attributes in selectors. | |
200 | (modify-syntax-entry ?\[ "(]" st) | |
201 | (modify-syntax-entry ?\] ")[" st) | |
202 | ;; Special chars that sometimes come at the beginning of words. | |
203 | (modify-syntax-entry ?@ "'" st) | |
204 | ;; (modify-syntax-entry ?: "'" st) | |
205 | (modify-syntax-entry ?# "'" st) | |
206 | ;; Distinction between words and symbols. | |
207 | (modify-syntax-entry ?- "_" st) | |
208 | st)) | |
209 | ||
210 | (defconst css-escapes-re | |
211 | "\\\\\\(?:[^\000-\037\177]\\|[0-9a-fA-F]+[ \n\t\r\f]?\\)") | |
212 | (defconst css-nmchar-re (concat "\\(?:[-[:alnum:]]\\|" css-escapes-re "\\)")) | |
213 | (defconst css-nmstart-re (concat "\\(?:[[:alpha:]]\\|" css-escapes-re "\\)")) | |
214 | (defconst css-ident-re (concat css-nmstart-re css-nmchar-re "*")) | |
5b3a105e SM |
215 | (defconst css-proprietary-nmstart-re ;; Vendor-specific properties. |
216 | "[-_]\\(?:ms\\|moz\\|o\\|webkit\\|khtml\\)-") | |
d500a092 SM |
217 | (defconst css-name-re (concat css-nmchar-re "+")) |
218 | ||
219 | (defface css-selector '((t :inherit font-lock-function-name-face)) | |
96736d92 GM |
220 | "Face to use for selectors." |
221 | :group 'css) | |
d500a092 | 222 | (defface css-property '((t :inherit font-lock-variable-name-face)) |
96736d92 GM |
223 | "Face to use for properties." |
224 | :group 'css) | |
5b3a105e SM |
225 | (defface css-proprietary-property '((t :inherit (css-property italic))) |
226 | "Face to use for vendor-specific properties.") | |
d500a092 SM |
227 | |
228 | (defvar css-font-lock-keywords | |
229 | `(("!\\s-*important" . font-lock-builtin-face) | |
230 | ;; Atrules keywords. IDs not in css-at-ids are valid (ignored). | |
231 | ;; In fact the regexp should probably be | |
232 | ;; (,(concat "\\(@" css-ident-re "\\)\\([ \t\n][^;{]*\\)[;{]") | |
233 | ;; (1 font-lock-builtin-face)) | |
234 | ;; Since "An at-rule consists of everything up to and including the next | |
235 | ;; semicolon (;) or the next block, whichever comes first." | |
236 | (,(concat "@" css-ident-re) . font-lock-builtin-face) | |
237 | ;; Selectors. | |
238 | ;; FIXME: attribute selectors don't work well because they may contain | |
239 | ;; strings which have already been highlighted as f-l-string-face and | |
240 | ;; thus prevent this highlighting from being applied (actually now that | |
241 | ;; I use `append' this should work better). But really the part of hte | |
242 | ;; selector between [...] should simply not be highlighted. | |
243 | (,(concat "^\\([ \t]*[^@:{\n][^:{\n]+\\(?::" (regexp-opt css-pseudo-ids t) | |
244 | "\\(?:([^)]+)\\)?[^:{\n]*\\)*\\)\\(?:\n[ \t]*\\)*{") | |
245 | (1 'css-selector append)) | |
246 | ;; In the above rule, we allow the open-brace to be on some subsequent | |
247 | ;; line. This will only work if we properly mark the intervening text | |
248 | ;; as being part of a multiline element (and even then, this only | |
249 | ;; ensures proper refontification, but not proper discovery). | |
250 | ("^[ \t]*{" (0 (save-excursion | |
251 | (goto-char (match-beginning 0)) | |
252 | (skip-chars-backward " \n\t") | |
253 | (put-text-property (point) (match-end 0) | |
254 | 'font-lock-multiline t) | |
255 | ;; No face. | |
256 | nil))) | |
257 | ;; Properties. Again, we don't limit ourselves to css-property-ids. | |
5b3a105e SM |
258 | (,(concat "\\(?:[{;]\\|^\\)[ \t]*\\(" |
259 | "\\(?:\\(" css-proprietary-nmstart-re "\\)\\|" | |
260 | css-nmstart-re "\\)" css-nmchar-re "*" | |
261 | "\\)\\s-*:") | |
262 | (1 (if (match-end 2) 'css-proprietary-property 'css-property))))) | |
d500a092 SM |
263 | |
264 | (defvar css-font-lock-defaults | |
265 | '(css-font-lock-keywords nil t)) | |
266 | ||
d500a092 | 267 | ;;;###autoload |
5f6d8331 | 268 | (define-derived-mode css-mode fundamental-mode "CSS" |
d500a092 SM |
269 | "Major mode to edit Cascading Style Sheets." |
270 | (set (make-local-variable 'font-lock-defaults) css-font-lock-defaults) | |
271 | (set (make-local-variable 'comment-start) "/*") | |
272 | (set (make-local-variable 'comment-start-skip) "/\\*+[ \t]*") | |
273 | (set (make-local-variable 'comment-end) "*/") | |
274 | (set (make-local-variable 'comment-end-skip) "[ \t]*\\*+/") | |
275 | (set (make-local-variable 'forward-sexp-function) 'css-forward-sexp) | |
276 | (set (make-local-variable 'parse-sexp-ignore-comments) t) | |
277 | (set (make-local-variable 'indent-line-function) 'css-indent-line) | |
278 | (set (make-local-variable 'fill-paragraph-function) | |
279 | 'css-fill-paragraph) | |
fb7d9275 | 280 | (when css-electric-keys |
d500a092 SM |
281 | (let ((fc (make-char-table 'auto-fill-chars))) |
282 | (set-char-table-parent fc auto-fill-chars) | |
fb7d9275 | 283 | (dolist (c css-electric-keys) |
d500a092 SM |
284 | (aset fc c 'indent-according-to-mode)) |
285 | (set (make-local-variable 'auto-fill-chars) fc)))) | |
286 | ||
3fe5c37a DN |
287 | (defvar comment-continue) |
288 | ||
d500a092 SM |
289 | (defun css-fill-paragraph (&optional justify) |
290 | (save-excursion | |
291 | (let ((ppss (syntax-ppss)) | |
292 | (eol (line-end-position))) | |
293 | (cond | |
294 | ((and (nth 4 ppss) | |
295 | (save-excursion | |
296 | (goto-char (nth 8 ppss)) | |
297 | (forward-comment 1) | |
298 | (prog1 (not (bolp)) | |
299 | (setq eol (point))))) | |
300 | ;; Filling inside a comment whose comment-end marker is not \n. | |
301 | ;; This code is meant to be generic, so that it works not only for | |
302 | ;; css-mode but for all modes. | |
303 | (save-restriction | |
304 | (narrow-to-region (nth 8 ppss) eol) | |
088d6743 | 305 | (comment-normalize-vars) ;Will define comment-continue. |
d500a092 SM |
306 | (let ((fill-paragraph-function nil) |
307 | (paragraph-separate | |
308 | (if (and comment-continue | |
309 | (string-match "[^ \t]" comment-continue)) | |
310 | (concat "\\(?:[ \t]*" (regexp-quote comment-continue) | |
311 | "\\)?\\(?:" paragraph-separate "\\)") | |
312 | paragraph-separate)) | |
313 | (paragraph-start | |
314 | (if (and comment-continue | |
315 | (string-match "[^ \t]" comment-continue)) | |
316 | (concat "\\(?:[ \t]*" (regexp-quote comment-continue) | |
317 | "\\)?\\(?:" paragraph-start "\\)") | |
318 | paragraph-start))) | |
319 | (fill-paragraph justify) | |
320 | ;; Don't try filling again. | |
321 | t))) | |
9e3fd593 | 322 | |
d500a092 SM |
323 | ((and (null (nth 8 ppss)) |
324 | (or (nth 1 ppss) | |
325 | (and (ignore-errors | |
326 | (down-list 1) | |
327 | (when (<= (point) eol) | |
328 | (setq ppss (syntax-ppss))))))) | |
329 | (goto-char (nth 1 ppss)) | |
330 | (let ((end (save-excursion | |
331 | (ignore-errors (forward-sexp 1) (copy-marker (point) t))))) | |
332 | (when end | |
333 | (while (re-search-forward "[{;}]" end t) | |
334 | (cond | |
335 | ;; This is a false positive inside a string or comment. | |
336 | ((nth 8 (syntax-ppss)) nil) | |
337 | ((eq (char-before) ?\}) | |
338 | (save-excursion | |
339 | (forward-char -1) | |
340 | (skip-chars-backward " \t") | |
341 | (unless (bolp) (newline)))) | |
342 | (t | |
343 | (while | |
344 | (progn | |
345 | (setq eol (line-end-position)) | |
346 | (and (forward-comment 1) | |
347 | (> (point) eol) | |
348 | ;; A multi-line comment should be on its own line. | |
349 | (save-excursion (forward-comment -1) | |
350 | (when (< (point) eol) | |
351 | (newline) | |
352 | t))))) | |
353 | (if (< (point) eol) (newline))))) | |
354 | (goto-char (nth 1 ppss)) | |
355 | (indent-region (line-beginning-position 2) end) | |
356 | ;; Don't use the default filling code. | |
357 | t))))))) | |
358 | ||
359 | ;;; Navigation and indentation. | |
360 | ||
361 | (defconst css-navigation-syntax-table | |
362 | (let ((st (make-syntax-table css-mode-syntax-table))) | |
363 | (map-char-table (lambda (c v) | |
364 | ;; Turn punctuation (code = 1) into symbol (code = 1). | |
365 | (if (eq (car-safe v) 1) | |
e0602e9a | 366 | (set-char-table-range st c (cons 3 (cdr v))))) |
d500a092 SM |
367 | st) |
368 | st)) | |
369 | ||
370 | (defun css-backward-sexp (n) | |
371 | (let ((forward-sexp-function nil)) | |
372 | (if (< n 0) (css-forward-sexp (- n)) | |
373 | (while (> n 0) | |
374 | (setq n (1- n)) | |
375 | (forward-comment (- (point-max))) | |
376 | (if (not (eq (char-before) ?\;)) | |
377 | (backward-sexp 1) | |
378 | (while (progn (backward-sexp 1) | |
379 | (save-excursion | |
380 | (forward-comment (- (point-max))) | |
381 | ;; FIXME: We should also skip punctuation. | |
9e3fd593 | 382 | (not (or (bobp) (memq (char-before) '(?\; ?\{)))))))))))) |
d500a092 SM |
383 | |
384 | (defun css-forward-sexp (n) | |
385 | (let ((forward-sexp-function nil)) | |
386 | (if (< n 0) (css-backward-sexp (- n)) | |
387 | (while (> n 0) | |
388 | (setq n (1- n)) | |
389 | (forward-comment (point-max)) | |
390 | (if (not (eq (char-after) ?\;)) | |
391 | (forward-sexp 1) | |
392 | (while (progn (forward-sexp 1) | |
393 | (save-excursion | |
394 | (forward-comment (point-max)) | |
395 | ;; FIXME: We should also skip punctuation. | |
396 | (not (memq (char-after) '(?\; ?\}))))))))))) | |
397 | ||
398 | (defun css-indent-calculate-virtual () | |
399 | (if (or (save-excursion (skip-chars-backward " \t") (bolp)) | |
400 | (if (looking-at "\\s(") | |
401 | (save-excursion | |
402 | (forward-char 1) (skip-chars-forward " \t") | |
403 | (not (or (eolp) (looking-at comment-start-skip)))))) | |
404 | (current-column) | |
405 | (css-indent-calculate))) | |
406 | ||
407 | (defcustom css-indent-offset 4 | |
408 | "Basic size of one indentation step." | |
8e788369 | 409 | :version "22.2" |
96736d92 GM |
410 | :type 'integer |
411 | :group 'css) | |
d500a092 SM |
412 | |
413 | (defun css-indent-calculate () | |
414 | (let ((ppss (syntax-ppss)) | |
415 | pos) | |
416 | (with-syntax-table css-navigation-syntax-table | |
417 | (save-excursion | |
418 | (cond | |
419 | ;; Inside a string. | |
420 | ((nth 3 ppss) 'noindent) | |
421 | ;; Inside a comment. | |
422 | ((nth 4 ppss) | |
423 | (setq pos (point)) | |
424 | (forward-line -1) | |
425 | (skip-chars-forward " \t") | |
426 | (if (>= (nth 8 ppss) (point)) | |
427 | (progn | |
428 | (goto-char (nth 8 ppss)) | |
429 | (if (eq (char-after pos) ?*) | |
430 | (forward-char 1) | |
431 | (if (not (looking-at comment-start-skip)) | |
432 | (error "Internal css-mode error") | |
433 | (goto-char (match-end 0)))) | |
434 | (current-column)) | |
435 | (if (and (eq (char-after pos) ?*) (eq (char-after) ?*)) | |
436 | (current-column) | |
437 | ;; 'noindent | |
438 | (current-column) | |
439 | ))) | |
440 | ;; In normal code. | |
441 | (t | |
442 | (or | |
443 | (when (looking-at "\\s)") | |
444 | (forward-char 1) | |
445 | (backward-sexp 1) | |
446 | (css-indent-calculate-virtual)) | |
447 | (when (looking-at comment-start-skip) | |
448 | (forward-comment (point-max)) | |
449 | (css-indent-calculate)) | |
450 | (when (save-excursion (forward-comment (- (point-max))) | |
451 | (setq pos (point)) | |
452 | (eq (char-syntax (preceding-char)) ?\()) | |
453 | (goto-char (1- pos)) | |
454 | (if (not (looking-at "\\s([ \t]*")) | |
455 | (error "Internal css-mode error") | |
456 | (if (or (memq (char-after (match-end 0)) '(?\n nil)) | |
457 | (save-excursion (goto-char (match-end 0)) | |
458 | (looking-at comment-start-skip))) | |
459 | (+ (css-indent-calculate-virtual) css-indent-offset) | |
460 | (progn (goto-char (match-end 0)) (current-column))))) | |
461 | (progn | |
462 | (css-backward-sexp 1) | |
463 | (if (looking-at "\\s(") | |
464 | (css-indent-calculate) | |
465 | (css-indent-calculate-virtual)))))))))) | |
9e3fd593 | 466 | |
d500a092 SM |
467 | |
468 | (defun css-indent-line () | |
469 | "Indent current line according to CSS indentation rules." | |
470 | (interactive) | |
471 | (let* ((savep (point)) | |
472 | (forward-sexp-function nil) | |
473 | (indent (condition-case nil | |
474 | (save-excursion | |
475 | (forward-line 0) | |
476 | (skip-chars-forward " \t") | |
477 | (if (>= (point) savep) (setq savep nil)) | |
478 | (css-indent-calculate)) | |
479 | (error nil)))) | |
480 | (if (not (numberp indent)) 'noindent | |
481 | (if savep | |
482 | (save-excursion (indent-line-to indent)) | |
483 | (indent-line-to indent))))) | |
484 | ||
485 | (provide 'css-mode) | |
d500a092 | 486 | ;;; css-mode.el ends here |