cc-mode / cc-styles.el

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
;;; cc-styles.el --- support for styles in CC Mode

;; Copyright (C) 1985,1987,1992-2003 Free Software Foundation, Inc.

;; Authors:    1998- Martin Stjernholm
;;             1992-1999 Barry A. Warsaw
;;             1987 Dave Detlefs and Stewart Clamen
;;             1985 Richard M. Stallman
;; Maintainer: bug-cc-mode@gnu.org
;; Created:    22-Apr-1997 (split from cc-mode.el)
;; Version:    See cc-mode.el
;; Keywords:   c languages oop

;; This file is part of GNU Emacs.

;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING.  If not, write to
;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;;; Commentary:

;;; Code:

(eval-when-compile
  (let ((load-path
	 (if (and (boundp 'byte-compile-dest-file)
		  (stringp byte-compile-dest-file))
	     (cons (file-name-directory byte-compile-dest-file) load-path)
	   load-path)))
    (load "cc-bytecomp" nil t)))

(cc-require 'cc-defs)
(cc-require 'cc-vars)
(cc-require 'cc-align)
;; cc-align is only indirectly required: Styles added with
;; `c-add-style' often contains references to functions defined there.

;; Silence the compiler.
(cc-bytecomp-defvar adaptive-fill-first-line-regexp) ; Emacs


(defvar c-style-alist
  '(("gnu"
     (c-basic-offset . 2)
     (c-comment-only-line-offset . (0 . 0))
     (c-offsets-alist . ((statement-block-intro . +)
			 (knr-argdecl-intro . 5)
			 (substatement-open . +)
			 (substatement-label . 0)
			 (label . 0)
			 (statement-case-open . +)
			 (statement-cont . +)
			 (arglist-intro . c-lineup-arglist-intro-after-paren)
			 (arglist-close . c-lineup-arglist)
			 (inline-open . 0)
			 (brace-list-open . +)
			 ))
     (c-special-indent-hook . c-gnu-impose-minimum)
     (c-block-comment-prefix . "")
     )
    ("k&r"
     (c-basic-offset . 5)
     (c-comment-only-line-offset . 0)
     (c-offsets-alist . ((statement-block-intro . +)
			 (knr-argdecl-intro . 0)
			 (substatement-open . 0)
			 (substatement-label . 0)
			 (label . 0)
			 (statement-cont . +)
			 ))
     )
    ("bsd"
     (c-basic-offset . 8)
     (c-comment-only-line-offset . 0)
     (c-offsets-alist . ((statement-block-intro . +)
			 (knr-argdecl-intro . +)
			 (substatement-open . 0)
			 (substatement-label . 0)
			 (label . 0)
			 (statement-cont . +)
			 (inline-open . 0)
			 (inexpr-class . 0)
			 ))
     )
    ("stroustrup"
     (c-basic-offset . 4)
     (c-comment-only-line-offset . 0)
     (c-offsets-alist . ((statement-block-intro . +)
			 (substatement-open . 0)
			 (substatement-label . 0)
			 (label . 0)
			 (statement-cont . +)
			 ))
     )
    ("whitesmith"
     (c-basic-offset . 4)
     (c-comment-only-line-offset . 0)
     (c-offsets-alist . ((knr-argdecl-intro . +)
			 (label . 0)
			 (statement-cont . +)
			 (substatement-open . +)
			 (substatement-label . +)
			 (block-open . +)
			 (statement-block-intro . c-lineup-whitesmith-in-block)
			 (block-close . c-lineup-whitesmith-in-block)
			 (inline-open . +)
			 (defun-open . +)
			 (defun-block-intro . c-lineup-whitesmith-in-block)
			 (defun-close . c-lineup-whitesmith-in-block)
			 (brace-list-open . +)
			 (brace-list-intro . c-lineup-whitesmith-in-block)
			 (brace-entry-open . c-indent-multi-line-block)
			 (brace-list-close . c-lineup-whitesmith-in-block)
			 (class-open . +)
			 (inclass . c-lineup-whitesmith-in-block)
			 (class-close . +)
			 (inexpr-class . 0)
			 (extern-lang-open . +)
			 (inextern-lang . c-lineup-whitesmith-in-block)
			 (extern-lang-close . +)
			 (namespace-open . +)
			 (innamespace . c-lineup-whitesmith-in-block)
			 (namespace-close . +)
			 (module-open . +)
			 (inmodule . c-lineup-whitesmith-in-block)
			 (module-close . +)
			 (composition-open . +)
			 (incomposition . c-lineup-whitesmith-in-block)
			 (composition-close . +)
			 ))
     )
    ("ellemtel"
     (c-basic-offset . 3)
     (c-comment-only-line-offset . 0)
     (c-hanging-braces-alist     . ((substatement-open before after)))
     (c-offsets-alist . ((topmost-intro        . 0)
			 (substatement         . +)
			 (substatement-open    . 0)
                         (case-label           . +)
                         (access-label         . -)
                         (inclass              . ++)
                         (inline-open          . 0)
                         ))
     )
    ("linux"
     (c-basic-offset  . 8)
     (c-comment-only-line-offset . 0)
     (c-hanging-braces-alist . ((brace-list-open)
				(brace-entry-open)
				(substatement-open after)
				(block-close . c-snug-do-while)))
     (c-cleanup-list . (brace-else-brace))
     (c-offsets-alist . ((statement-block-intro . +)
			 (knr-argdecl-intro     . 0)
			 (substatement-open     . 0)
			 (substatement-label    . 0)
			 (label                 . 0)
			 (statement-cont        . +)
			 ))
     )
    ("python"
     (indent-tabs-mode . t)
     (fill-column      . 78)
     (c-basic-offset   . 8)
     (c-offsets-alist  . ((substatement-open . 0)
			  (inextern-lang . 0)
			  (arglist-intro . +)
			  (knr-argdecl-intro . +)
			  ))
     (c-hanging-braces-alist . ((brace-list-open)
				(brace-list-intro)
				(brace-list-close)
				(brace-entry-open)
				(substatement-open after)
				(block-close . c-snug-do-while)
				))
     (c-block-comment-prefix . "")
     )
    ("java"
     (c-basic-offset . 4)
     (c-comment-only-line-offset . (0 . 0))
     ;; the following preserves Javadoc starter lines
     (c-offsets-alist . ((inline-open . 0)
			 (topmost-intro-cont    . +)
			 (statement-block-intro . +)
 			 (knr-argdecl-intro     . 5)
			 (substatement-open     . +)
			 (substatement-label    . +)
 			 (label                 . +)
 			 (statement-case-open   . +)
 			 (statement-cont        . +)
 			 (arglist-intro  . c-lineup-arglist-intro-after-paren)
 			 (arglist-close  . c-lineup-arglist)
 			 (access-label   . 0)
			 (inher-cont     . c-lineup-java-inher)
			 (func-decl-cont . c-lineup-java-throws)
			 ))
     )
    )
  "Styles of indentation.
Elements of this alist are of the form:

  (STYLE-STRING [BASE-STYLE] (VARIABLE . VALUE) [(VARIABLE . VALUE) ...])

where STYLE-STRING is a short descriptive string used to select a
style, VARIABLE is any Emacs variable, and VALUE is the intended value
for that variable when using the selected style.

Optional BASE-STYLE if present, is a string and must follow
STYLE-STRING.  BASE-STYLE names a style that this style inherits from.
By default, all styles inherit from the \"user\" style, which is
computed at run time.  Style loops generate errors.

Two variables are treated specially.  When VARIABLE is
`c-offsets-alist', the VALUE is a list containing elements of the
form:

  (SYNTACTIC-SYMBOL . OFFSET)

as described in `c-offsets-alist'.  These are passed directly to
`c-set-offset' so there is no need to set every syntactic symbol in
your style, only those that are different from the default.

When VARIABLE is `c-special-indent-hook', its VALUE is added to
`c-special-indent-hook' using `add-hook'.  If VALUE is a list, each
element of the list is added with `add-hook'.

Do not change this variable directly.  Use the function `c-add-style'
to add new styles or modify existing styles (it is not a good idea to
modify existing styles -- you should create a new style that inherits
the existing style.")


;; Functions that manipulate styles
(defun c-set-style-1 (conscell dont-override)
  ;; Set the style for one variable
  ;;
  ;; This function does not do any hidden buffer changes.
  (let ((attr (car conscell))
	(val  (cdr conscell)))
    (cond
     ;; first special variable
     ((eq attr 'c-offsets-alist)
      (let ((offsets (cond ((eq dont-override t)
			    c-offsets-alist)
			   (dont-override
			    (default-value 'c-offsets-alist)))))
	(mapcar (lambda (langentry)
		  (let ((langelem (car langentry))
			(offset (cdr langentry)))
		    (unless (assq langelem offsets)
		      (c-set-offset langelem offset))))
		val)))
     ;; second special variable
     ((eq attr 'c-special-indent-hook)
      ;; Maybe we should ignore dont-override here and always add new
      ;; hooks?
      (unless (cond ((eq dont-override t)
		     c-special-indent-hook)
		    (dont-override
		     (default-value 'c-special-indent-hook)))
	(if (listp val)
	    (mapcar (lambda (func)
		      (add-hook 'c-special-indent-hook func t t))
		    val)
	  (add-hook 'c-special-indent-hook val t t))))
     ;; all other variables
     (t (when (or (not dont-override)
		  (not (memq attr c-style-variables))
		  (eq (if (eq dont-override t)
			  (symbol-value attr)
			(default-value attr))
		      'set-from-style))
	  (set attr val)
	  ;; Must update a number of other variables if
	  ;; c-comment-prefix-regexp is set.
	  (if (eq attr 'c-comment-prefix-regexp)
	      (c-setup-paragraph-variables)))))))

(defun c-get-style-variables (style basestyles)
  ;; Return all variables in a style by resolving inheritances.
  ;;
  ;; This function does not do any hidden buffer changes.
  (if (not style)
      (copy-alist c-fallback-style)
    (let ((vars (cdr (or (assoc (downcase style) c-style-alist)
			 (assoc (upcase style) c-style-alist)
			 (assoc style c-style-alist)
			 (progn
			   (c-benign-error "Undefined style: %s" style)
			   nil)))))
      (let ((base (and (stringp (car-safe vars))
		       (prog1
			   (downcase (car vars))
			 (setq vars (cdr vars))))))
	(if (memq base basestyles)
	    (c-benign-error "Style loop detected: %s in %s" base basestyles)
	  (nconc (c-get-style-variables base (cons base basestyles))
		 (copy-alist vars)))))))

(defvar c-set-style-history nil)

;;;###autoload
(defun c-set-style (stylename &optional dont-override)
  "Set CC Mode variables to use one of several different indentation styles.
STYLENAME is a string representing the desired style from the list of
styles described in the variable `c-style-alist'.  See that variable
for details of setting up styles.

The variable `c-indentation-style' always contains the buffer's current
style name.

If the optional argument DONT-OVERRIDE is t, no style variables that
already have values will be overridden.  I.e. in the case of
`c-offsets-alist', syntactic symbols will only be added, and in the
case of all other style variables, only those set to `set-from-style'
will be reassigned.

If DONT-OVERRIDE is neither nil nor t, only those style variables that
have default (i.e. non-buffer local) values will keep their settings
while the rest will be overridden.  This is useful to avoid overriding
global settings done in ~/.emacs when setting a style from a mode hook
\(providing the style variables are buffer local, which is the
default).

Obviously, setting DONT-OVERRIDE to t is useful mainly when the
initial style is chosen for a CC Mode buffer by a major mode.  Since
that is done internally by CC Mode, it typically won't have any effect
when used elsewhere."
  (interactive
   (list (let ((completion-ignore-case t)
	       (prompt (format "Which %s indentation style? "
			       mode-name)))
	   (condition-case nil
	       ;; The default argument is preferred over
	       ;; initial-contents, but it only exists in Emacs >= 20
	       ;; and XEmacs >= 21.
	       (completing-read prompt c-style-alist nil t nil
				'c-set-style-history
				c-indentation-style)
	     (wrong-number-of-arguments
	      ;; If the call above failed, we fall back to the old way
	      ;; of specifying the default value.
	      (completing-read prompt c-style-alist nil t
			       (cons c-indentation-style 0)
			       'c-set-style-history))))))
  (c-initialize-builtin-style)
  (let ((vars (c-get-style-variables stylename nil)))
    (unless dont-override
      ;; Since we always add to c-special-indent-hook we must reset it
      ;; first, or else the hooks from the preceding style will
      ;; remain.  This is not necessary for c-offsets-alist, since
      ;; c-get-style-variables contains every valid offset type in the
      ;; fallback entry.
      (setq c-special-indent-hook
	    (default-value 'c-special-indent-hook)))
    (mapcar (lambda (elem)
	      (c-set-style-1 elem dont-override))
	    ;; Need to go through the variables backwards when we
	    ;; don't override any settings.
	    (if (eq dont-override t) (nreverse vars) vars)))
  (setq c-indentation-style stylename)
  (c-keep-region-active))

;;;###autoload
(defun c-add-style (style description &optional set-p)
  "Adds a style to `c-style-alist', or updates an existing one.
STYLE is a string identifying the style to add or update.  DESCRIPTION
is an association list describing the style and must be of the form:

  ([BASESTYLE] (VARIABLE . VALUE) [(VARIABLE . VALUE) ...])

See the variable `c-style-alist' for the semantics of BASESTYLE,
VARIABLE and VALUE.  This function also sets the current style to
STYLE using `c-set-style' if the optional SET-P flag is non-nil."
  (interactive
   (let ((stylename (completing-read "Style to add: " c-style-alist
				     nil nil nil 'c-set-style-history))
         (descr (eval-minibuffer "Style description: ")))
     (list stylename descr
	   (y-or-n-p "Set the style too? "))))
  (setq style (downcase style))
  (let ((s (assoc style c-style-alist)))
    (if s
        (setcdr s (copy-alist description)) ; replace
      (setq c-style-alist (cons (cons style description) c-style-alist))))
  (and set-p (c-set-style style)))


(defvar c-read-offset-history nil)

(defun c-read-offset (langelem)
  ;; read new offset value for LANGELEM from minibuffer. return a
  ;; legal value only
  ;;
  ;; This function does not do any hidden buffer changes.
  (let* ((oldoff  (cdr-safe (or (assq langelem c-offsets-alist)
				(assq langelem (get 'c-offsets-alist
						    'c-stylevar-fallback)))))
	 (symname (symbol-name langelem))
	 (defstr  (format "(default %s): " oldoff))
	 (errmsg  (concat "Offset must be int, func, var, vector, list, "
			  "or [+,-,++,--,*,/] "
			  defstr))
	 (prompt (concat symname " offset " defstr))
	 (keymap (make-sparse-keymap))
	 (minibuffer-completion-table obarray)
	 (minibuffer-completion-predicate 'fboundp)
	 offset input)
    ;; In principle completing-read is used here, but SPC is unbound
    ;; to make it less annoying to enter lists.
    (set-keymap-parent keymap minibuffer-local-completion-map)
    (define-key keymap " " 'self-insert-command)
    (while (not offset)
      (setq input (read-from-minibuffer prompt nil keymap t
					'c-read-offset-history
					(format "%s" oldoff)))
      (if (c-valid-offset input)
	  (setq offset input)
	;; error, but don't signal one, keep trying
	;; to read an input value
	(ding)
	(setq prompt errmsg)))
    offset))

;;;###autoload
(defun c-set-offset (symbol offset &optional ignored)
  "Change the value of a syntactic element symbol in `c-offsets-alist'.
SYMBOL is the syntactic element symbol to change and OFFSET is the new
offset for that syntactic element.  The optional argument is not used
and exists only for compatibility reasons."
  (interactive
   (let* ((langelem
	   (intern (completing-read
		    (concat "Syntactic symbol to change"
			    (if current-prefix-arg " or add" "")
			    ": ")
		    (mapcar
		     #'(lambda (langelem)
			 (cons (format "%s" (car langelem)) nil))
		     (get 'c-offsets-alist 'c-stylevar-fallback))
		    nil (not current-prefix-arg)
		    ;; initial contents tries to be the last element
		    ;; on the syntactic analysis list for the current
		    ;; line
		    (and c-buffer-is-cc-mode
			 (c-save-buffer-state
			     ((syntax (c-guess-basic-syntax))
			      (len (length syntax))
			      (ic (format "%s" (car (nth (1- len) syntax)))))
			   (cons ic 0)))
		    )))
	  (offset (c-read-offset langelem)))
     (list langelem offset current-prefix-arg)))
  ;; sanity check offset
  (if (c-valid-offset offset)
      (let ((entry (assq symbol c-offsets-alist)))
	(if entry
	    (setcdr entry offset)
	  (if (assq symbol (get 'c-offsets-alist 'c-stylevar-fallback))
	      (setq c-offsets-alist (cons (cons symbol offset)
					  c-offsets-alist))
	    (c-benign-error "%s is not a valid syntactic symbol" symbol))))
    (c-benign-error "Invalid indentation setting for symbol %s: %s"
		    symbol offset))
  (c-keep-region-active))


(defun c-setup-paragraph-variables ()
  "Fix things up for paragraph recognition and filling inside comments by
incorporating the value of `c-comment-prefix-regexp' in the relevant
variables."
  ;;
  ;; This function does not do any hidden buffer changes.

  (interactive)

  (setq c-current-comment-prefix
	(if (listp c-comment-prefix-regexp)
	    (cdr-safe (or (assoc major-mode c-comment-prefix-regexp)
			  (assoc 'other c-comment-prefix-regexp)))
	  c-comment-prefix-regexp))

  (let ((comment-line-prefix
	 (concat "[ \t]*\\(" c-current-comment-prefix "\\)[ \t]*")))

    (setq paragraph-start (concat comment-line-prefix
				  c-paragraph-start
				  "\\|"
				  page-delimiter)
	  paragraph-separate (concat comment-line-prefix
				     c-paragraph-separate
				     "\\|"
				     page-delimiter)
	  paragraph-ignore-fill-prefix t
	  adaptive-fill-mode t
	  adaptive-fill-regexp
	  (concat comment-line-prefix
		  (if (default-value 'adaptive-fill-regexp)
		      (concat "\\("
			      (default-value 'adaptive-fill-regexp)
			      "\\)")
		    "")))

    (when (boundp 'adaptive-fill-first-line-regexp)
      ;; XEmacs (20.x) adaptive fill mode doesn't have this.
      (make-local-variable 'adaptive-fill-first-line-regexp)
      (setq adaptive-fill-first-line-regexp
	    (concat "\\`" comment-line-prefix
		    ;; Maybe we should incorporate the old value here,
		    ;; but then we have to do all sorts of kludges to
		    ;; deal with the \` and \' it probably contains.
		    "\\'")))))


;; Helper for setting up Filladapt mode.  It's not used by CC Mode itself.

(cc-bytecomp-defvar filladapt-token-table)
(cc-bytecomp-defvar filladapt-token-match-table)
(cc-bytecomp-defvar filladapt-token-conversion-table)

(defun c-setup-filladapt ()
  "Convenience function to configure Kyle E. Jones' Filladapt mode for
CC Mode by making sure the proper entries are present on
`filladapt-token-table', `filladapt-token-match-table', and
`filladapt-token-conversion-table'.  This is intended to be used on
`c-mode-common-hook' or similar."
  ;; This function is intended to be used explicitly by the end user
  ;; only.
  ;;
  ;; This function does not do any hidden buffer changes.

  ;; The default configuration already handles C++ comments, but we
  ;; need to add handling of C block comments.  A new filladapt token
  ;; `c-comment' is added for that.
  (let (p)
    (setq p filladapt-token-table)
    (while (and p (not (eq (car-safe (cdr-safe (car-safe p))) 'c-comment)))
      (setq p (cdr-safe p)))
    (if p
	(setcar (car p) c-current-comment-prefix)
      (setq filladapt-token-table
	    (append (list (car filladapt-token-table)
			  (list c-current-comment-prefix 'c-comment))
		    (cdr filladapt-token-table)))))
  (unless (assq 'c-comment filladapt-token-match-table)
    (setq filladapt-token-match-table
	  (append '((c-comment c-comment))
		  filladapt-token-match-table)))
  (unless (assq 'c-comment filladapt-token-conversion-table)
    (setq filladapt-token-conversion-table
	  (append '((c-comment . exact))
		  filladapt-token-conversion-table))))


(defun c-initialize-builtin-style ()
  ;; Dynamically append the default value of most variables. This is
  ;; crucial because future c-set-style calls will always reset the
  ;; variables first to the `cc-mode' style before instituting the new
  ;; style.  Only do this once!
  ;;
  ;; This function does not do any hidden buffer changes.
  (unless (get 'c-initialize-builtin-style 'is-run)
    (put 'c-initialize-builtin-style 'is-run t)
    ;;(c-initialize-cc-mode)
    (unless (assoc "user" c-style-alist)
      (let ((vars c-style-variables) var val uservars)
	(while vars
	  (setq var (car vars)
		val (symbol-value var)
		vars (cdr vars))
	  (cond ((eq var 'c-offsets-alist)
		 (or (null val)
		     (setq uservars (cons (cons 'c-offsets-alist val)
					  uservars))))
		((not (eq val 'set-from-style))
		 (setq uservars (cons (cons var val)
				      uservars)))))
	(c-add-style "user" uservars)))
    (unless (assoc "cc-mode" c-style-alist)
      (c-add-style "cc-mode" '("user")))
    (if c-style-variables-are-local-p
	(c-make-styles-buffer-local))))

(defun c-make-styles-buffer-local (&optional this-buf-only-p)
  "Make all CC Mode style variables buffer local.
If `this-buf-only-p' is non-nil, the style variables will be made
buffer local only in the current buffer.  Otherwise they'll be made
permanently buffer local in any buffer that change their values.

The buffer localness of the style variables are normally controlled
with the variable `c-style-variables-are-local-p', so there's seldom
any reason to call this function directly."
  ;;
  ;; This function does not do any hidden buffer changes.

  ;; style variables
  (let ((func (if this-buf-only-p
		  'make-local-variable
		'make-variable-buffer-local))
	(varsyms (cons 'c-indentation-style (copy-alist c-style-variables))))
    (delq 'c-special-indent-hook varsyms)
    (mapcar func varsyms)
    ;; Hooks must be handled specially
    (if this-buf-only-p
	(make-local-hook 'c-special-indent-hook)
      (make-variable-buffer-local 'c-special-indent-hook)
      (setq c-style-variables-are-local-p t))
    ))



(cc-provide 'cc-styles)

;;; cc-styles.el ends here
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for ProjectModifiedEvent.java.
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.