1 ;;; cc-mode.el --- major mode for editing C and similar languages
3 ;; Copyright (C) 1985, 1987, 1992-2013 Free Software Foundation, Inc.
5 ;; Authors: 2003- Alan Mackenzie
6 ;; 1998- Martin Stjernholm
7 ;; 1992-1999 Barry A. Warsaw
10 ;; 1985 Richard M. Stallman
11 ;; Maintainer: bug-cc-mode@gnu.org
12 ;; Created: a long, long, time ago. adapted from the original c-mode.el
13 ;; Keywords: c languages
15 ;; This file is part of GNU Emacs.
17 ;; GNU Emacs is free software: you can redistribute it and/or modify
18 ;; it under the terms of the GNU General Public License as published by
19 ;; the Free Software Foundation, either version 3 of the License, or
20 ;; (at your option) any later version.
22 ;; GNU Emacs is distributed in the hope that it will be useful,
23 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
24 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 ;; GNU General Public License for more details.
27 ;; You should have received a copy of the GNU General Public License
28 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
32 ;; NOTE: Read the commentary below for the right way to submit bug reports!
33 ;; NOTE: See the accompanying texinfo manual for details on using this mode!
34 ;; Note: The version string is in cc-defs.
36 ;; This package provides GNU Emacs major modes for editing C, C++,
37 ;; Objective-C, Java, CORBA's IDL, Pike and AWK code. As of the
38 ;; latest Emacs and XEmacs releases, it is the default package for
39 ;; editing these languages. This package is called "CC Mode", and
40 ;; should be spelled exactly this way.
42 ;; CC Mode supports K&R and ANSI C, ANSI C++, Objective-C, Java,
43 ;; CORBA's IDL, Pike and AWK with a consistent indentation model
44 ;; across all modes. This indentation model is intuitive and very
45 ;; flexible, so that almost any desired style of indentation can be
46 ;; supported. Installation, usage, and programming details are
47 ;; contained in an accompanying texinfo manual.
49 ;; CC Mode's immediate ancestors were, c++-mode.el, cplus-md.el, and
52 ;; To submit bug reports, type "C-c C-b". These will be sent to
53 ;; bug-gnu-emacs@gnu.org (mirrored as the Usenet newsgroup
54 ;; gnu.emacs.bug) as well as bug-cc-mode@gnu.org, which directly
55 ;; contacts the CC Mode maintainers. Questions can sent to
56 ;; help-gnu-emacs@gnu.org (mirrored as gnu.emacs.help) and/or
57 ;; bug-cc-mode@gnu.org. Please do not send bugs or questions to our
58 ;; personal accounts; we reserve the right to ignore such email!
60 ;; Many, many thanks go out to all the folks on the beta test list.
61 ;; Without their patience, testing, insight, code contributions, and
62 ;; encouragement CC Mode would be a far inferior package.
64 ;; You can get the latest version of CC Mode, including PostScript
65 ;; documentation and separate individual files from:
67 ;; http://cc-mode.sourceforge.net/
69 ;; You can join a moderated CC Mode announcement-only mailing list by
72 ;; http://lists.sourceforge.net/mailman/listinfo/cc-mode-announce
78 (unless (fboundp 'declare-function
) (defmacro declare-function
(&rest r
))))
82 (if (and (boundp 'byte-compile-dest-file
)
83 (stringp byte-compile-dest-file
))
84 (cons (file-name-directory byte-compile-dest-file
) load-path
)
86 (load "cc-bytecomp" nil t
)))
89 (cc-require-when-compile 'cc-langs
)
91 (cc-require 'cc-engine
)
92 (cc-require 'cc-styles
)
94 (cc-require 'cc-align
)
95 (cc-require 'cc-menus
)
96 (cc-require 'cc-guess
)
98 ;; Silence the compiler.
99 (cc-bytecomp-defvar adaptive-fill-first-line-regexp
) ; Emacs
100 (cc-bytecomp-defun set-keymap-parents) ; XEmacs
101 (cc-bytecomp-defun run-mode-hooks) ; Emacs 21.1
103 ;; We set these variables during mode init, yet we don't require
105 (cc-bytecomp-defvar font-lock-defaults
)
106 (cc-bytecomp-defvar font-lock-syntactic-keywords
)
108 ;; Menu support for both XEmacs and Emacs. If you don't have easymenu
109 ;; with your version of Emacs, you are incompatible!
110 (cc-external-require 'easymenu
)
112 ;; Autoload directive for emacsen that doesn't have an older CC Mode
113 ;; version in the dist.
114 (autoload 'subword-mode
"subword"
115 "Mode enabling subword movement and editing keys." t
)
117 ;; Load cc-fonts first after font-lock is loaded, since it isn't
118 ;; necessary until font locking is requested.
119 ; (eval-after-load "font-lock" ; 2006-07-09: font-lock is now preloaded.
121 (require 'cc-fonts
) ;)
124 ;; Other modes and packages which depend on CC Mode should do the
125 ;; following to make sure everything is loaded and available for their
128 ;; (require 'cc-mode)
130 ;; And in the major mode function:
132 ;; (c-initialize-cc-mode t)
133 ;; (c-init-language-vars some-mode)
134 ;; (c-common-init 'some-mode) ; Or perhaps (c-basic-common-init 'some-mode)
136 ;; If you're not writing a derived mode using the language variable
137 ;; system, then some-mode is one of the language modes directly
138 ;; supported by CC Mode. You can then use (c-init-language-vars-for
139 ;; 'some-mode) instead of `c-init-language-vars'.
140 ;; `c-init-language-vars-for' is a function that avoids the rather
141 ;; large expansion of `c-init-language-vars'.
143 ;; If you use `c-basic-common-init' then you might want to call
144 ;; `c-font-lock-init' too to set up CC Mode's font lock support.
146 ;; See cc-langs.el for further info. A small example of a derived mode
147 ;; is also available at <http://cc-mode.sourceforge.net/
148 ;; derived-mode-ex.el>.
150 (defun c-leave-cc-mode-mode ()
151 (setq c-buffer-is-cc-mode nil
))
153 (defun c-init-language-vars-for (mode)
154 "Initialize the language variables for one of the language modes
155 directly supported by CC Mode. This can be used instead of the
156 `c-init-language-vars' macro if the language you want to use is one of
157 those, rather than a derived language defined through the language
158 variable system (see \"cc-langs.el\")."
159 (cond ((eq mode
'c-mode
) (c-init-language-vars c-mode
))
160 ((eq mode
'c
++-mode
) (c-init-language-vars c
++-mode
))
161 ((eq mode
'objc-mode
) (c-init-language-vars objc-mode
))
162 ((eq mode
'java-mode
) (c-init-language-vars java-mode
))
163 ((eq mode
'idl-mode
) (c-init-language-vars idl-mode
))
164 ((eq mode
'pike-mode
) (c-init-language-vars pike-mode
))
165 ((eq mode
'awk-mode
) (c-init-language-vars awk-mode
))
166 (t (error "Unsupported mode %s" mode
))))
169 (defun c-initialize-cc-mode (&optional new-style-init
)
170 "Initialize CC Mode for use in the current buffer.
171 If the optional NEW-STYLE-INIT is nil or left out then all necessary
172 initialization to run CC Mode for the C language is done. Otherwise
173 only some basic setup is done, and a call to `c-init-language-vars' or
174 `c-init-language-vars-for' is necessary too (which gives more
175 control). See \"cc-mode.el\" for more info."
177 (setq c-buffer-is-cc-mode t
)
179 (let ((initprop 'cc-mode-is-initialized
)
181 (unless (get 'c-initialize-cc-mode initprop
)
184 (put 'c-initialize-cc-mode initprop t
)
185 (c-initialize-builtin-style)
186 (run-hooks 'c-initialization-hook
)
187 ;; Fix obsolete variables.
188 (if (boundp 'c-comment-continuation-stars
)
189 (setq c-block-comment-prefix
190 (symbol-value 'c-comment-continuation-stars
)))
191 (add-hook 'change-major-mode-hook
'c-leave-cc-mode-mode
)
192 (setq c-initialization-ok t
))
193 ;; Will try initialization hooks again if they failed.
194 (put 'c-initialize-cc-mode initprop c-initialization-ok
))))
196 (unless new-style-init
197 (c-init-language-vars-for 'c-mode
)))
202 (defvar c-mode-base-map
()
203 "Keymap shared by all CC Mode related modes.")
205 (defun c-make-inherited-keymap ()
206 (let ((map (make-sparse-keymap)))
207 ;; Necessary to use `cc-bytecomp-fboundp' below since this
208 ;; function is called from top-level forms that are evaluated
209 ;; while cc-bytecomp is active when one does M-x eval-buffer.
212 ((cc-bytecomp-fboundp 'set-keymap-parent
)
213 (set-keymap-parent map c-mode-base-map
))
215 ((cc-bytecomp-fboundp 'set-keymap-parents
)
216 (set-keymap-parents map c-mode-base-map
))
218 (t (error "CC Mode is incompatible with this version of Emacs")))
221 (defun c-define-abbrev-table (name defs
)
222 ;; Compatibility wrapper for `define-abbrev' which passes a non-nil
223 ;; sixth argument for SYSTEM-FLAG in emacsen that support it
224 ;; (currently only Emacs >= 21.2).
225 (let ((table (or (symbol-value name
)
226 (progn (define-abbrev-table name nil
)
227 (symbol-value name
)))))
230 (apply 'define-abbrev table
(append (car defs
) '(t)))
231 (wrong-number-of-arguments
232 (apply 'define-abbrev table
(car defs
))))
233 (setq defs
(cdr defs
)))))
234 (put 'c-define-abbrev-table
'lisp-indent-function
1)
236 (defun c-bind-special-erase-keys ()
237 ;; Only used in Emacs to bind C-c C-<delete> and C-c C-<backspace>
238 ;; to the proper keys depending on `normal-erase-is-backspace'.
239 (if normal-erase-is-backspace
241 (define-key c-mode-base-map
(kbd "C-c C-<delete>")
242 'c-hungry-delete-forward
)
243 (define-key c-mode-base-map
(kbd "C-c C-<backspace>")
244 'c-hungry-delete-backwards
))
245 (define-key c-mode-base-map
(kbd "C-c C-<delete>")
246 'c-hungry-delete-backwards
)
247 (define-key c-mode-base-map
(kbd "C-c C-<backspace>")
248 'c-hungry-delete-forward
)))
253 (setq c-mode-base-map
(make-sparse-keymap))
255 ;; Separate M-BS from C-M-h. The former should remain
256 ;; backward-kill-word.
257 (define-key c-mode-base-map
[(control meta h
)] 'c-mark-function
)
258 (define-key c-mode-base-map
"\e\C-q" 'c-indent-exp
)
259 (substitute-key-definition 'backward-sentence
260 'c-beginning-of-statement
261 c-mode-base-map global-map
)
262 (substitute-key-definition 'forward-sentence
264 c-mode-base-map global-map
)
265 (substitute-key-definition 'indent-new-comment-line
266 'c-indent-new-comment-line
267 c-mode-base-map global-map
)
268 (substitute-key-definition 'indent-for-tab-command
269 ;; XXX Is this the right thing to do
271 'c-indent-line-or-region
272 c-mode-base-map global-map
)
273 (when (fboundp 'comment-indent-new-line
)
274 ;; indent-new-comment-line has changed name to
275 ;; comment-indent-new-line in Emacs 21.
276 (substitute-key-definition 'comment-indent-new-line
277 'c-indent-new-comment-line
278 c-mode-base-map global-map
))
280 ;; RMS says don't make these the default.
281 ;; (April 2006): RMS has now approved these commands as defaults.
282 (unless (memq 'argumentative-bod-function c-emacs-features
)
283 (define-key c-mode-base-map
"\e\C-a" 'c-beginning-of-defun
)
284 (define-key c-mode-base-map
"\e\C-e" 'c-end-of-defun
))
286 (define-key c-mode-base-map
"\C-c\C-n" 'c-forward-conditional
)
287 (define-key c-mode-base-map
"\C-c\C-p" 'c-backward-conditional
)
288 (define-key c-mode-base-map
"\C-c\C-u" 'c-up-conditional
)
290 ;; It doesn't suffice to put `c-fill-paragraph' on
291 ;; `fill-paragraph-function' since `c-fill-paragraph' must be called
292 ;; before any fill prefix adaption is done. E.g. `filladapt-mode'
293 ;; replaces `fill-paragraph' and does the adaption before calling
294 ;; `fill-paragraph-function', and we have to mask comments etc
295 ;; before that. Also, `c-fill-paragraph' chains on to
296 ;; `fill-paragraph' and the value on `fill-paragraph-function' to
297 ;; do the actual filling work.
298 (substitute-key-definition 'fill-paragraph
'c-fill-paragraph
299 c-mode-base-map global-map
)
300 ;; In XEmacs the default fill function is called
301 ;; fill-paragraph-or-region.
302 (substitute-key-definition 'fill-paragraph-or-region
'c-fill-paragraph
303 c-mode-base-map global-map
)
305 ;; We bind the forward deletion key and (implicitly) C-d to
306 ;; `c-electric-delete-forward', and the backward deletion key to
307 ;; `c-electric-backspace'. The hungry variants are bound to the
308 ;; same keys but prefixed with C-c. This implies that C-c C-d is
309 ;; `c-hungry-delete-forward'. For consistency, we bind not only C-c
310 ;; <backspace> to `c-hungry-delete-backwards' but also
311 ;; C-c C-<backspace>, so that the Ctrl key can be held down during
312 ;; the whole sequence regardless of the direction. This in turn
313 ;; implies that we bind C-c C-<delete> to `c-hungry-delete-forward',
314 ;; for the same reason.
316 ;; Bind the electric deletion functions to C-d and DEL. Emacs 21
317 ;; automatically maps the [delete] and [backspace] keys to these two
318 ;; depending on window system and user preferences. (In earlier
319 ;; versions it's possible to do the same by using `function-key-map'.)
320 (define-key c-mode-base-map
"\C-d" 'c-electric-delete-forward
)
321 (define-key c-mode-base-map
"\177" 'c-electric-backspace
)
322 (define-key c-mode-base-map
"\C-c\C-d" 'c-hungry-delete-forward
)
323 (define-key c-mode-base-map
[?\C-c ?\d
] 'c-hungry-delete-backwards
)
324 (define-key c-mode-base-map
[?\C-c ?\C-\d
] 'c-hungry-delete-backwards
)
325 (define-key c-mode-base-map
[?\C-c deletechar
] 'c-hungry-delete-forward
) ; C-c <delete> on a tty.
326 (define-key c-mode-base-map
[?\C-c
(control deletechar
)] ; C-c C-<delete> on a tty.
327 'c-hungry-delete-forward
)
328 (when (boundp 'normal-erase-is-backspace
)
329 ;; The automatic C-d and DEL mapping functionality doesn't extend
330 ;; to special combinations like C-c C-<delete>, so we have to hook
331 ;; into the `normal-erase-is-backspace' system to bind it directly
333 (add-hook 'normal-erase-is-backspace-hook
'c-bind-special-erase-keys
)
334 (c-bind-special-erase-keys))
336 (when (fboundp 'delete-forward-p
)
337 ;; In XEmacs we fix the forward and backward deletion behavior by
338 ;; binding the keysyms for the [delete] and [backspace] keys
339 ;; directly, and use `delete-forward-p' to decide what [delete]
340 ;; should do. That's done in the XEmacs specific
341 ;; `c-electric-delete' and `c-hungry-delete' functions.
342 (define-key c-mode-base-map
[delete] 'c-electric-delete)
343 (define-key c-mode-base-map [backspace] 'c-electric-backspace)
344 (define-key c-mode-base-map (kbd "C-c <delete>") 'c-hungry-delete)
345 (define-key c-mode-base-map (kbd "C-c C-<delete>") 'c-hungry-delete)
346 (define-key c-mode-base-map (kbd "C-c <backspace>")
347 'c-hungry-delete-backwards)
348 (define-key c-mode-base-map (kbd "C-c C-<backspace>")
349 'c-hungry-delete-backwards))
351 (define-key c-mode-base-map "#" 'c-electric-pound)
352 (define-key c-mode-base-map "{" 'c-electric-brace)
353 (define-key c-mode-base-map "}" 'c-electric-brace)
354 (define-key c-mode-base-map "/" 'c-electric-slash)
355 (define-key c-mode-base-map "*" 'c-electric-star)
356 (define-key c-mode-base-map ";" 'c-electric-semi&comma)
357 (define-key c-mode-base-map "," 'c-electric-semi&comma)
358 (define-key c-mode-base-map ":" 'c-electric-colon)
359 (define-key c-mode-base-map "(" 'c-electric-paren)
360 (define-key c-mode-base-map ")" 'c-electric-paren)
362 (define-key c-mode-base-map "\C-c\C-\\" 'c-backslash-region)
363 (define-key c-mode-base-map "\C-c\C-a" 'c-toggle-auto-newline)
364 (define-key c-mode-base-map "\C-c\C-b" 'c-submit-bug-report)
365 (define-key c-mode-base-map "\C-c\C-c" 'comment-region)
366 (define-key c-mode-base-map "\C-c\C-l" 'c-toggle-electric-state)
367 (define-key c-mode-base-map "\C-c\C-o" 'c-set-offset)
368 (define-key c-mode-base-map "\C-c\C-q" 'c-indent-defun)
369 (define-key c-mode-base-map "\C-c\C-s" 'c-show-syntactic-information)
370 ;; (define-key c-mode-base-map "\C-c\C-t" 'c-toggle-auto-hungry-state) Commented out by ACM, 2005-03-05.
371 (define-key c-mode-base-map "\C-c." 'c-set-style)
372 ;; conflicts with OOBR
373 ;;(define-key c-mode-base-map "\C-c\C-v" 'c-version)
374 ;; (define-key c-mode-base-map "\C-c\C-y" 'c-toggle-hungry-state) Commented out by ACM, 2005-11-22.
375 (define-key c-mode-base-map "\C-c\C-w" 'subword-mode)
378 ;; We don't require the outline package, but we configure it a bit anyway.
379 (cc-bytecomp-defvar outline-level)
381 (defun c-mode-menu (modestr)
382 "Return a menu spec suitable for `easy-menu-define' that is exactly
383 like the C mode menu except that the menu bar item name is MODESTR
386 This function is provided for compatibility only; derived modes should
387 preferably use the `c-mode-menu' language constant directly."
388 (cons modestr (c-lang-const c-mode-menu c)))
390 ;; Ugly hack to pull in the definition of `c-populate-syntax-table'
391 ;; from cc-langs to make it available at runtime. It's either this or
392 ;; moving the definition for it to cc-defs, but that would mean to
393 ;; break up the syntax table setup over two files.
394 (defalias 'c-populate-syntax-table
395 (cc-eval-when-compile
396 (let ((f (symbol-function 'c-populate-syntax-table)))
397 (if (byte-code-function-p f) f (byte-compile f)))))
399 ;; CAUTION: Try to avoid installing things on
400 ;; `before-change-functions'. The macro `combine-after-change-calls'
401 ;; is used and it doesn't work if there are things on that hook. That
402 ;; can cause font lock functions to run in inconvenient places during
403 ;; temporary changes in some font lock support modes, causing extra
404 ;; unnecessary work and font lock glitches due to interactions between
405 ;; various text properties.
407 ;; (2007-02-12): The macro `combine-after-change-calls' ISN'T used any
410 (defun c-unfind-enclosing-token (pos)
411 ;; If POS is wholly inside a token, remove that id from
412 ;; `c-found-types', should it be present. Return t if we were in an
415 (let ((tok-beg (progn (goto-char pos)
416 (and (c-beginning-of-current-token) (point))))
417 (tok-end (progn (goto-char pos)
418 (and (c-end-of-current-token) (point)))))
419 (when (and tok-beg tok-end)
420 (c-unfind-type (buffer-substring-no-properties tok-beg tok-end))
423 (defun c-unfind-coalesced-tokens (beg end)
424 ;; unless the non-empty region (beg end) is entirely WS and there's at
425 ;; least one character of WS just before or after this region, remove
426 ;; the tokens which touch the region from `c-found-types' should they
428 (or (c-partial-ws-p beg end)
432 (or (eq beg (point-min))
433 (c-skip-ws-backward (1- beg))
435 (= (c-backward-token-2) 1)
436 (c-unfind-type (buffer-substring-no-properties
439 (or (eq end (point-max))
440 (c-skip-ws-forward (1+ end))
442 (progn (forward-char) (c-end-of-current-token) nil)
443 (c-unfind-type (buffer-substring-no-properties
446 ;; c-maybe-stale-found-type records a place near the region being
447 ;; changed where an element of `found-types' might become stale. It
448 ;; is set in c-before-change and is either nil, or has the form:
450 ;; (c-decl-id-start "foo" 97 107 " (* ooka) " "o"), where
452 ;; o - `c-decl-id-start' is the c-type text property value at buffer
455 ;; o - 97 107 is the region potentially containing the stale type -
456 ;; this is delimited by a non-nil c-type text property at 96 and
457 ;; either another one or a ";", "{", or "}" at 107.
459 ;; o - " (* ooka) " is the (before change) buffer portion containing
460 ;; the suspect type (here "ooka").
462 ;; o - "o" is the buffer contents which is about to be deleted. This
463 ;; would be the empty string for an insertion.
464 (defvar c-maybe-stale-found-type nil)
465 (make-variable-buffer-local 'c-maybe-stale-found-type)
467 (defun c-basic-common-init (mode default-style)
468 "Do the necessary initialization for the syntax handling routines
469 and the line breaking/filling code. Intended to be used by other
470 packages that embed CC Mode.
472 MODE is the CC Mode flavor to set up, e.g. 'c-mode or 'java-mode.
473 DEFAULT-STYLE tells which indentation style to install. It has the
474 same format as `c-default-style'.
476 Note that `c-init-language-vars' must be called before this function.
477 This function cannot do that since `c-init-language-vars' is a macro
478 that requires a literal mode spec at compile time."
480 (setq c-buffer-is-cc-mode mode)
482 ;; these variables should always be buffer local; they do not affect
483 ;; indentation style.
484 (make-local-variable 'comment-start)
485 (make-local-variable 'comment-end)
486 (make-local-variable 'comment-start-skip)
488 (make-local-variable 'paragraph-start)
489 (make-local-variable 'paragraph-separate)
490 (make-local-variable 'paragraph-ignore-fill-prefix)
491 (make-local-variable 'adaptive-fill-mode)
492 (make-local-variable 'adaptive-fill-regexp)
493 (make-local-variable 'fill-paragraph-handle-comment)
495 ;; now set their values
496 (set (make-local-variable 'parse-sexp-ignore-comments) t)
497 (set (make-local-variable 'indent-line-function) 'c-indent-line)
498 (set (make-local-variable 'indent-region-function) 'c-indent-region)
499 (set (make-local-variable 'normal-auto-fill-function) 'c-do-auto-fill)
500 (set (make-local-variable 'comment-multi-line) t)
501 (set (make-local-variable 'comment-line-break-function)
502 'c-indent-new-comment-line)
504 ;; For the benefit of adaptive file, which otherwise mis-fills.
505 (setq fill-paragraph-handle-comment nil)
507 ;; Install `c-fill-paragraph' on `fill-paragraph-function' so that a
508 ;; direct call to `fill-paragraph' behaves better. This still
509 ;; doesn't work with filladapt but it's better than nothing.
510 (set (make-local-variable 'fill-paragraph-function) 'c-fill-paragraph)
512 ;; Initialize the cache of brace pairs, and opening braces/brackets/parens.
515 (when (or c-recognize-<>-arglists
516 (c-major-mode-is 'awk-mode)
517 (c-major-mode-is '(java-mode c-mode c++-mode objc-mode)))
518 ;; We'll use the syntax-table text property to change the syntax
519 ;; of some chars for this language, so do the necessary setup for
522 ;; Note to other package developers: It's ok to turn this on in CC
523 ;; Mode buffers when CC Mode doesn't, but it's not ok to turn it
524 ;; off if CC Mode has turned it on.
527 (when (boundp 'parse-sexp-lookup-properties)
528 (set (make-local-variable 'parse-sexp-lookup-properties) t))
530 ;; Same as above for XEmacs.
531 (when (boundp 'lookup-syntax-properties)
532 (set (make-local-variable 'lookup-syntax-properties) t)))
534 ;; Use this in Emacs 21+ to avoid meddling with the rear-nonsticky
535 ;; property on each character.
536 (when (boundp 'text-property-default-nonsticky)
537 (mapc (lambda (tprop)
538 (unless (assq tprop text-property-default-nonsticky)
539 (set (make-local-variable 'text-property-default-nonsticky)
540 (cons `(,tprop . t) text-property-default-nonsticky))))
541 '(syntax-table category c-type)))
543 ;; In Emacs 21 and later it's possible to turn off the ad-hoc
544 ;; heuristic that open parens in column 0 are defun starters. Since
545 ;; we have c-state-cache, that heuristic isn't useful and only causes
546 ;; trouble, so turn it off.
547 ;; 2006/12/17: This facility is somewhat confused, and doesn't really seem
548 ;; helpful. Comment it out for now.
549 ;; (when (memq 'col-0-paren c-emacs-features)
550 ;; (make-local-variable 'open-paren-in-column-0-is-defun-start)
551 ;; (setq open-paren-in-column-0-is-defun-start nil))
553 (c-clear-found-types)
555 ;; now set the mode style based on default-style
556 (let ((style (cc-choose-style-for-mode mode default-style)))
557 ;; Override style variables if `c-old-style-variable-behavior' is
558 ;; set. Also override if we are using global style variables,
559 ;; have already initialized a style once, and are switching to a
560 ;; different style. (It's doubtful whether this is desirable, but
561 ;; the whole situation with nonlocal style variables is a bit
562 ;; awkward. It's at least the most compatible way with the old
563 ;; style init procedure.)
564 (c-set-style style (not (or c-old-style-variable-behavior
565 (and (not c-style-variables-are-local-p)
567 (not (string-equal c-indentation-style
569 (c-setup-paragraph-variables)
571 ;; we have to do something special for c-offsets-alist so that the
572 ;; buffer local value has its own alist structure.
573 (setq c-offsets-alist (copy-alist c-offsets-alist))
575 ;; setup the comment indent variable in a Emacs version portable way
576 (set (make-local-variable 'comment-indent-function) 'c-comment-indent)
578 ;; ;; Put submode indicators onto minor-mode-alist, but only once.
579 ;; (or (assq 'c-submode-indicators minor-mode-alist)
580 ;; (setq minor-mode-alist
581 ;; (cons '(c-submode-indicators c-submode-indicators)
582 ;; minor-mode-alist)))
585 ;; Install the functions that ensure that various internal caches
586 ;; don't become invalid due to buffer changes.
587 (when (featurep 'xemacs)
588 (make-local-hook 'before-change-functions)
589 (make-local-hook 'after-change-functions))
590 (add-hook 'before-change-functions 'c-before-change nil t)
591 (add-hook 'after-change-functions 'c-after-change nil t)
592 (set (make-local-variable 'font-lock-extend-after-change-region-function)
593 'c-extend-after-change-region)) ; Currently (2009-05) used by all
594 ; languages with #define (C, C++,; ObjC), and by AWK.
596 (defun c-setup-doc-comment-style ()
597 "Initialize the variables that depend on the value of `c-doc-comment-style'."
598 (when (and (featurep 'font-lock)
599 (symbol-value 'font-lock-mode))
600 ;; Force font lock mode to reinitialize itself.
604 ;; Buffer local variables defining the region to be fontified by a font lock
605 ;; after-change function. They are set in c-after-change to
606 ;; after-change-functions' BEG and END, and may be modified by functions in
607 ;; `c-before-font-lock-functions'.
609 (make-variable-buffer-local 'c-new-BEG)
611 (make-variable-buffer-local 'c-new-END)
613 (defun c-common-init (&optional mode)
614 "Common initialization for all CC Mode modes.
615 In addition to the work done by `c-basic-common-init' and
616 `c-font-lock-init', this function sets up various other things as
617 customary in CC Mode modes but which aren't strictly necessary for CC
618 Mode to operate correctly.
620 MODE is the symbol for the mode to initialize, like 'c-mode. See
621 `c-basic-common-init' for details. It's only optional to be
622 compatible with old code; callers should always specify it."
625 ;; Called from an old third party package. The fallback is to
627 (c-init-language-vars-for 'c-mode))
629 (c-basic-common-init mode c-default-style)
631 ;; Only initialize font locking if we aren't called from an old package.
634 ;; Starting a mode is a sort of "change". So call the change functions...
637 (setq c-new-BEG (point-min))
638 (setq c-new-END (point-max))
641 (funcall fn (point-min) (point-max)))
642 c-get-state-before-change-functions)
644 (funcall fn (point-min) (point-max)
645 (- (point-max) (point-min))))
646 c-before-font-lock-functions)))
648 (set (make-local-variable 'outline-regexp) "[^#\n\^M]")
649 (set (make-local-variable 'outline-level) 'c-outline-level)
650 (set (make-local-variable 'add-log-current-defun-function)
652 (or (c-cpp-define-name) (c-defun-name))))
653 (let ((rfn (assq mode c-require-final-newline)))
656 (set (make-local-variable 'require-final-newline)
657 mode-require-final-newline)))))
659 (defun c-count-cfss (lv-alist)
660 ;; LV-ALIST is an alist like `file-local-variables-alist'. Count how many
661 ;; elements with the key `c-file-style' there are in it.
662 (let ((elt-ptr lv-alist) elt (cownt 0))
664 (setq elt (car elt-ptr)
665 elt-ptr (cdr elt-ptr))
666 (when (eq (car elt) 'c-file-style)
667 (setq cownt (1+ cownt))))
670 (defun c-before-hack-hook ()
671 "Set the CC Mode style and \"offsets\" when in the buffer's local variables.
672 They are set only when, respectively, the pseudo variables
673 `c-file-style' and `c-file-offsets' are present in the list.
675 This function is called from the hook `before-hack-local-variables-hook'."
676 (when c-buffer-is-cc-mode
677 (let ((mode-cons (assq 'mode file-local-variables-alist))
678 (stile (cdr (assq 'c-file-style file-local-variables-alist)))
679 (offsets (cdr (assq 'c-file-offsets file-local-variables-alist))))
681 (hack-one-local-variable (car mode-cons) (cdr mode-cons))
682 (setq file-local-variables-alist
683 (delq mode-cons file-local-variables-alist)))
685 (or (stringp stile) (error "c-file-style is not a string"))
686 (if (boundp 'dir-local-variables-alist)
687 ;; Determine whether `c-file-style' was set in the file's local
688 ;; variables or in a .dir-locals.el (a directory setting).
689 (let ((cfs-in-file-and-dir-count
690 (c-count-cfss file-local-variables-alist))
691 (cfs-in-dir-count (c-count-cfss dir-local-variables-alist)))
693 (and (= cfs-in-file-and-dir-count cfs-in-dir-count)
695 (c-set-style stile)))
699 (let ((langelem (car langentry))
700 (offset (cdr langentry)))
701 (c-set-offset langelem offset)))
704 (defun c-remove-any-local-eval-or-mode-variables ()
705 ;; If the buffer specifies `mode' or `eval' in its File Local Variable list
706 ;; or on the first line, remove all occurrences. See
707 ;; `c-postprocess-file-styles' for justification. There is no need to save
708 ;; point here, or even bother too much about the buffer contents. However,
709 ;; DON'T mess up the kill-ring.
711 ;; Most of the code here is derived from Emacs 21.3's `hack-local-variables'
713 (goto-char (point-max))
714 (search-backward "\n\^L" (max (- (point-max) 3000) (point-min)) 'move)
715 (let (lv-point (prefix "") (suffix ""))
716 (when (let ((case-fold-search t))
717 (search-forward "Local Variables:" nil t))
718 (setq lv-point (point))
719 ;; The prefix is what comes before "local variables:" in its line.
720 ;; The suffix is what comes after "local variables:" in its line.
721 (skip-chars-forward " \t")
723 (setq suffix (buffer-substring (point)
724 (progn (end-of-line) (point)))))
725 (goto-char (match-beginning 0))
728 (buffer-substring (point)
729 (progn (beginning-of-line) (point)))))
731 (while (search-forward-regexp
733 (regexp-quote prefix)
734 "\\(mode\\|eval\\):.*"
735 (regexp-quote suffix)
739 (delete-region (point) (progn (forward-line) (point)))))
741 ;; Delete the first line, if we've got one, in case it contains a mode spec.
742 (unless (and lv-point
743 (progn (goto-char lv-point)
746 (goto-char (point-min))
748 (delete-region (point) (progn (forward-line) (point)))))))
750 (defun c-postprocess-file-styles ()
751 "Function that post processes relevant file local variables in CC Mode.
752 Currently, this function simply applies any style and offset settings
753 found in the file's Local Variable list. It first applies any style
754 setting found in `c-file-style', then it applies any offset settings
755 it finds in `c-file-offsets'.
757 Note that the style variables are always made local to the buffer."
759 ;; apply file styles and offsets
760 (when c-buffer-is-cc-mode
761 (if (or c-file-style c-file-offsets)
762 (c-make-styles-buffer-local t))
764 (or (stringp c-file-style)
765 (error "c-file-style is not a string"))
766 (c-set-style c-file-style))
771 (let ((langelem (car langentry))
772 (offset (cdr langentry)))
773 (c-set-offset langelem offset)))
775 ;; Problem: The file local variable block might have explicitly set a
776 ;; style variable. The `c-set-style' or `mapcar' call might have
777 ;; overwritten this. So we run `hack-local-variables' again to remedy
778 ;; this. There are no guarantees this will work properly, particularly as
779 ;; we have no control over what the other hook functions on
780 ;; `hack-local-variables-hook' would have done. We now (2006/2/1) remove
781 ;; any `eval' or `mode' expressions before we evaluate again (see below).
784 ;; Problem (bug reported by Gustav Broberg): if one of the variables is
785 ;; `mode', this will invoke c-mode (etc.) again, setting up the style etc.
786 ;; We prevent this by temporarily removing `mode' from the Local Variables
788 (if (or c-file-style c-file-offsets)
789 (let ((hack-local-variables-hook nil) (inhibit-read-only t))
790 (c-tentative-buffer-changes
791 (c-remove-any-local-eval-or-mode-variables)
792 (hack-local-variables))
795 (if (boundp 'before-hack-local-variables-hook)
796 (add-hook 'before-hack-local-variables-hook 'c-before-hack-hook)
797 (add-hook 'hack-local-variables-hook 'c-postprocess-file-styles))
799 (defmacro c-run-mode-hooks (&rest hooks)
800 ;; Emacs 21.1 has introduced a system with delayed mode hooks that
801 ;; requires the use of the new function `run-mode-hooks'.
802 (if (cc-bytecomp-fboundp 'run-mode-hooks)
803 `(run-mode-hooks ,@hooks)
804 `(progn ,@(mapcar (lambda (hook) `(run-hooks ,hook)) hooks))))
807 ;;; Change hooks, linking with Font Lock.
809 ;; Buffer local variables recording Beginning/End-of-Macro position before a
810 ;; change, when a macro straddles, respectively, the BEG or END (or both) of
811 ;; the change region. Otherwise these have the values BEG/END.
813 (make-variable-buffer-local 'c-old-BOM)
815 (make-variable-buffer-local 'c-old-EOM)
817 (defun c-extend-region-for-CPP (beg end)
818 ;; Set c-old-BOM or c-old-EOM respectively to BEG, END, each extended to the
819 ;; beginning/end of any preprocessor construct they may be in.
821 ;; Point is undefined both before and after this function call; the buffer
822 ;; has already been widened, and match-data saved. The return value is
825 ;; This function is in the C/C++/ObjC values of
826 ;; `c-get-state-before-change-functions' and is called exclusively as a
827 ;; before change function.
829 (c-beginning-of-macro)
830 (setq c-old-BOM (point))
833 (when (c-beginning-of-macro)
835 (or (eobp) (forward-char))) ; Over the terminating NL which may be marked
836 ; with a c-cpp-delimiter category property
837 (setq c-old-EOM (point)))
839 (defun c-extend-font-lock-region-for-macros (begg endd &optional old-len)
840 ;; Extend the region (BEGG ENDD) to cover all (possibly changed)
841 ;; preprocessor macros; return the cons (new-BEG . new-END). OLD-LEN should
842 ;; be either the old length parameter when called from an
843 ;; after-change-function, or nil otherwise. This defun uses the variables
844 ;; c-old-BOM, c-new-BOM.
846 ;; Point is undefined on both entry and exit to this function. The buffer
847 ;; will have been widened on entry.
848 (let (limits new-beg new-end)
849 (goto-char c-old-BOM) ; already set to old start of macro or begg.
852 (if (setq limits (c-state-literal-at (point)))
853 (cdr limits) ; go forward out of any string or comment.
857 (if (setq limits (c-state-literal-at (point)))
858 (goto-char (car limits))) ; go backward out of any string or comment.
859 (if (c-beginning-of-macro)
861 (setq new-end (max endd
863 (+ (- c-old-EOM old-len) (- endd begg))
866 (cons new-beg new-end)))
868 (defun c-neutralize-CPP-line (beg end)
869 ;; BEG and END bound a region, typically a preprocessor line. Put a
870 ;; "punctuation" syntax-table property on syntactically obtrusive
871 ;; characters, ones which would interact syntactically with stuff outside
874 ;; These are unmatched string delimiters, or unmatched
875 ;; parens/brackets/braces. An unclosed comment is regarded as valid, NOT
881 (setq s (parse-partial-sexp beg end -1))
883 ((< (nth 0 s) 0) ; found an unmated ),},]
884 (c-put-char-property (1- (point)) 'syntax-table '(1))
886 ((nth 3 s) ; In a string
887 (c-put-char-property (nth 8 s) 'syntax-table '(1))
889 ((> (nth 0 s) 0) ; In a (,{,[
890 (c-put-char-property (nth 1 s) 'syntax-table '(1))
894 (defun c-neutralize-syntax-in-and-mark-CPP (begg endd old-len)
895 ;; (i) Extend the font lock region to cover all changed preprocessor
896 ;; regions; it does this by setting the variables `c-new-BEG' and
897 ;; `c-new-END' to the new boundaries.
899 ;; (ii) "Neutralize" every preprocessor line wholly or partially in the
900 ;; extended changed region. "Restore" lines which were CPP lines before the
901 ;; change and are no longer so; these can be located from the Buffer local
902 ;; variables `c-old-BOM' and `c-old-EOM'.
904 ;; (iii) Mark every CPP construct by placing a `category' property value
905 ;; `c-cpp-delimiter' at its start and end. The marked characters are the
906 ;; opening # and usually the terminating EOL, but sometimes the character
907 ;; before a comment/string delimiter.
909 ;; That is, set syntax-table properties on characters that would otherwise
910 ;; interact syntactically with those outside the CPP line(s).
912 ;; This function is called from an after-change function, BEGG ENDD and
913 ;; OLD-LEN being the standard parameters. It prepares the buffer for font
914 ;; locking, hence must get called before `font-lock-after-change-function'.
916 ;; Point is undefined both before and after this function call, the buffer
917 ;; has been widened, and match-data saved. The return value is ignored.
919 ;; This function is in the C/C++/ObjC value of `c-before-font-lock-functions'.
921 ;; Note: SPEED _MATTERS_ IN THIS FUNCTION!!!
923 ;; This function might make hidden buffer changes.
924 (c-save-buffer-state (new-bounds)
925 ;; First determine the region, (c-new-BEG c-new-END), which will get font
926 ;; locked. It might need "neutralizing". This region may not start
927 ;; inside a string, comment, or macro.
928 (setq new-bounds (c-extend-font-lock-region-for-macros
929 c-new-BEG c-new-END old-len))
930 (setq c-new-BEG (max (car new-bounds) (c-determine-limit 500 begg))
931 c-new-END (min (cdr new-bounds) (c-determine-+ve-limit 500 endd)))
932 ;; Clear all old relevant properties.
933 (c-clear-char-property-with-value c-new-BEG c-new-END 'syntax-table '(1))
934 (c-clear-char-property-with-value c-new-BEG c-new-END 'category 'c-cpp-delimiter)
935 ;; FIXME!!! What about the "<" and ">" category properties? 2009-11-16
937 ;; Add needed properties to each CPP construct in the region.
938 (goto-char c-new-BEG)
939 (let ((pps-position c-new-BEG) pps-state mbeg)
940 (while (and (< (point) c-new-END)
941 (search-forward-regexp c-anchored-cpp-prefix c-new-END t))
942 ;; If we've found a "#" inside a string/comment, ignore it.
944 (parse-partial-sexp pps-position (point) nil nil pps-state)
945 pps-position (point))
946 (unless (or (nth 3 pps-state) ; in a string?
947 (nth 4 pps-state)) ; in a comment?
948 (goto-char (match-beginning 0))
950 (if (> (c-syntactic-end-of-macro) mbeg)
952 (c-neutralize-CPP-line mbeg (point))
953 (c-set-cpp-delimiters mbeg (point))
954 ;(setq pps-position (point))
956 (forward-line)) ; no infinite loop with, e.g., "#//"
959 (defun c-before-change (beg end)
960 ;; Function to be put on `before-change-functions'. Primarily, this calls
961 ;; the language dependent `c-get-state-before-change-functions'. It is
962 ;; otherwise used only to remove stale entries from the `c-found-types'
963 ;; cache, and to record entries which a `c-after-change' function might
966 ;; Note that this function must be FAST rather than accurate. Note
967 ;; also that it only has any effect when font locking is enabled.
968 ;; We exploit this by checking for font-lock-*-face instead of doing
969 ;; rigorous syntactic analysis.
971 ;; If either change boundary is wholly inside an identifier, delete
972 ;; it/them from the cache. Don't worry about being inside a string
973 ;; or a comment - "wrongly" removing a symbol from `c-found-types'
975 (setq c-maybe-stale-found-type nil)
980 ;; Are we inserting/deleting stuff in the middle of an identifier?
981 (c-unfind-enclosing-token beg)
982 (c-unfind-enclosing-token end)
983 ;; Are we coalescing two tokens together, e.g. "fo o" -> "foo"?
985 (c-unfind-coalesced-tokens beg end))
986 ;; Are we (potentially) disrupting the syntactic context which
987 ;; makes a type a type? E.g. by inserting stuff after "foo" in
988 ;; "foo bar;", or before "foo" in "typedef foo *bar;"?
990 ;; We search for appropriate c-type properties "near" the change.
991 ;; First, find an appropriate boundary for this property search.
996 (or (and (eq (get-text-property end 'face) 'font-lock-comment-face)
997 (previous-single-property-change end 'face))
999 (when (>= end1 beg) ; Don't hassle about changes entirely in comments.
1000 ;; Find a limit for the search for a `c-type' property
1002 (and (/= (skip-chars-backward "^;{}") 0)
1003 (> (point) (point-min))
1004 (memq (c-get-char-property (1- (point)) 'face)
1005 '(font-lock-comment-face font-lock-string-face))))
1006 (setq lim (max (point-min) (1- (point))))
1008 ;; Look for the latest `c-type' property before end1
1009 (when (and (> end1 (point-min))
1011 (if (get-text-property (1- end1) 'c-type)
1013 (previous-single-property-change end1 'c-type nil lim))))
1014 (setq type (get-text-property (max (1- type-pos) lim) 'c-type))
1016 (when (memq type '(c-decl-id-start c-decl-type-start))
1017 ;; Get the identifier, if any, that the property is on.
1018 (goto-char (1- type-pos))
1020 (when (looking-at "\\(\\sw\\|\\s_\\)")
1021 (c-beginning-of-current-token)
1022 (buffer-substring-no-properties (point) type-pos)))
1025 (skip-chars-forward "^;{}") ; FIXME!!! loop for comment, maybe
1028 (or (next-single-property-change end 'c-type nil lim) lim))
1029 (setq c-maybe-stale-found-type
1030 (list type marked-id
1032 (buffer-substring-no-properties type-pos term-pos)
1033 (buffer-substring-no-properties beg end)))))))
1035 (if c-get-state-before-change-functions
1037 (funcall fn beg end))
1038 c-get-state-before-change-functions))
1040 ;; The following must be done here rather than in `c-after-change' because
1041 ;; newly inserted parens would foul up the invalidation algorithm.
1042 (c-invalidate-state-cache beg))
1044 (defvar c-in-after-change-fontification nil)
1045 (make-variable-buffer-local 'c-in-after-change-fontification)
1046 ;; A flag to prevent region expanding stuff being done twice for after-change
1049 (defun c-after-change (beg end old-len)
1050 ;; Function put on `after-change-functions' to adjust various caches
1051 ;; etc. Prefer speed to finesse here, since there will be an order
1052 ;; of magnitude more calls to this function than any of the
1053 ;; functions that use the caches.
1055 ;; Note that care must be taken so that this is called before any
1056 ;; font-lock callbacks since we might get calls to functions using
1057 ;; these caches from inside them, and we must thus be sure that this
1058 ;; has already been executed.
1060 ;; This calls the language variable c-before-font-lock-functions, if non nil.
1061 ;; This typically sets `syntax-table' properties.
1063 (c-save-buffer-state ()
1064 ;; When `combine-after-change-calls' is used we might get calls
1065 ;; with regions outside the current narrowing. This has been
1066 ;; observed in Emacs 20.7.
1068 (save-match-data ; c-recognize-<>-arglists changes match-data
1071 (when (> end (point-max))
1072 ;; Some emacsen might return positions past the end. This has been
1073 ;; observed in Emacs 20.7 when rereading a buffer changed on disk
1074 ;; (haven't been able to minimize it, but Emacs 21.3 appears to
1076 (setq end (point-max))
1080 ;; C-y is capable of spuriously converting category properties
1081 ;; c-</>-as-paren-syntax into hard syntax-table properties. Remove
1082 ;; these when it happens.
1083 (c-clear-char-property-with-value beg end 'syntax-table
1084 c-<-as-paren-syntax)
1085 (c-clear-char-property-with-value beg end 'syntax-table
1086 c->-as-paren-syntax)
1088 (c-trim-found-types beg end old-len) ; maybe we don't need all of these.
1089 (c-invalidate-sws-region-after beg end)
1090 ;; (c-invalidate-state-cache beg) ; moved to `c-before-change'.
1091 (c-invalidate-find-decl-cache beg)
1093 (when c-recognize-<>-arglists
1094 (c-after-change-check-<>-operators beg end))
1096 ;; (c-new-BEG c-new-END) will be the region to fontify. It may become
1097 ;; larger than (beg end).
1100 (setq c-in-after-change-fontification t)
1103 (funcall fn beg end old-len))
1104 c-before-font-lock-functions))))))
1106 (defun c-set-fl-decl-start (pos)
1107 ;; If the beginning of the line containing POS is in the middle of a "local"
1108 ;; declaration (i.e. one which does not start outside of braces enclosing
1109 ;; POS, such as a struct), return the beginning of that declaration.
1110 ;; Otherwise return POS. Note that declarations, in this sense, can be
1113 ;; This function is called indirectly from font locking stuff - either from
1114 ;; c-after-change (to prepare for after-change font-locking) or from font
1115 ;; lock context (etc.) fontification.
1116 (let ((lit-limits (c-literal-limits))
1119 (goto-char (c-point 'bol new-pos))
1120 (when lit-limits ; Comment or string.
1121 (goto-char (car lit-limits)))
1122 (setq bod-lim (c-determine-limit 500))
1125 ;; Go to a less nested declaration each time round this loop.
1127 (eq (car (c-beginning-of-decl-1 bod-lim)) 'same)
1128 (progn (setq bo-decl (point))
1129 ;; Are we looking at a keyword such as "template" or
1130 ;; "typedef" which can decorate a type, or the type itself?
1131 (when (or (looking-at c-prefix-spec-kwds-re)
1133 ;; We've found another candidate position.
1134 (setq new-pos (min new-pos bo-decl))
1135 (goto-char bo-decl))
1137 ;; Try and go out a level to search again.
1139 (c-backward-syntactic-ws bod-lim)
1140 (and (> (point) bod-lim)
1141 (or (memq (char-before) '(?\( ?\[))
1142 (and (eq (char-before) ?\<)
1143 (eq (c-get-char-property
1144 (1- (point)) 'syntax-table)
1145 c-<-as-paren-syntax)))))
1148 new-pos)) ; back over (, [, <.
1150 (defun c-change-set-fl-decl-start (beg end old-len)
1151 ;; Set c-new-BEG to the beginning of a "local" declaration if it('s BOL) is
1152 ;; inside one. This is called from an after-change-function, but the
1153 ;; parameters BEG END and OLD-LEN are ignored. See `c-set-fl-decl-start'
1154 ;; for the detailed functionality.
1156 (setq c-new-BEG (c-set-fl-decl-start c-new-BEG))))
1158 (defun c-context-set-fl-decl-start (beg end)
1159 ;; Return a cons (NEW-BEG . END), where NEW-BEG is the beginning of a
1160 ;; "local" declaration (BOL at) NEW is inside or BEG. See
1161 ;; `c-set-fl-decl-start' for the detailed functionality.
1162 (cons (c-set-fl-decl-start beg) end))
1164 (defvar c-standard-font-lock-fontify-region-function nil
1165 "Standard value of `font-lock-fontify-region-function'")
1167 (defun c-font-lock-fontify-region (beg end &optional verbose)
1168 ;; Effectively advice around `font-lock-fontify-region' which extends the
1169 ;; region (BEG END), for example, to avoid context fontification chopping
1170 ;; off the start of the context. Do not do anything if it's already been
1171 ;; done (i.e. from an after-change fontification. An example (C++) where
1172 ;; this used to happen is this:
1174 ;; template <typename T>
1177 ;; void myfunc(T* p) {}
1179 ;; Type a space in the first blank line, and the fontification of the next
1180 ;; line was fouled up by context fontification.
1181 (let ((new-beg beg) (new-end end) new-region case-fold-search)
1182 (if c-in-after-change-fontification
1183 (setq c-in-after-change-fontification nil)
1188 (setq new-region (funcall fn new-beg new-end))
1189 (setq new-beg (car new-region) new-end (cdr new-region)))
1190 c-before-context-fontification-functions))))
1191 (funcall c-standard-font-lock-fontify-region-function
1192 new-beg new-end verbose)))
1194 (defun c-after-font-lock-init ()
1195 ;; Put on `font-lock-mode-hook'. This function ensures our after-change
1196 ;; function will get executed before the font-lock one. Amongst other
1198 (remove-hook 'after-change-functions 'c-after-change t)
1199 (add-hook 'after-change-functions 'c-after-change nil t)
1200 (setq c-standard-font-lock-fontify-region-function
1201 (default-value 'font-lock-fontify-region-function)))
1203 (defun c-font-lock-init ()
1204 "Set up the font-lock variables for using the font-lock support in CC Mode.
1205 This does not load the font-lock package. Use after
1206 `c-basic-common-init' and after cc-fonts has been loaded.
1207 This function is called from `c-common-init', once per mode initialization."
1209 (set (make-local-variable 'font-lock-defaults)
1210 `(,(if (c-major-mode-is 'awk-mode)
1211 ;; awk-mode currently has only one font lock level.
1212 'awk-font-lock-keywords
1213 (mapcar 'c-mode-symbol
1214 '("font-lock-keywords" "font-lock-keywords-1"
1215 "font-lock-keywords-2" "font-lock-keywords-3")))
1217 ,c-identifier-syntax-modifications
1218 c-beginning-of-syntax
1219 (font-lock-mark-block-function
1220 . c-mark-function)))
1222 (make-local-variable 'font-lock-fontify-region-function)
1223 (setq font-lock-fontify-region-function 'c-font-lock-fontify-region)
1225 (if (featurep 'xemacs)
1226 (make-local-hook 'font-lock-mode-hook))
1227 (add-hook 'font-lock-mode-hook 'c-after-font-lock-init nil t))
1229 (defun c-extend-after-change-region (beg end old-len)
1230 "Extend the region to be fontified, if necessary."
1231 ;; Note: the parameters are ignored here. This somewhat indirect
1232 ;; implementation exists because it is minimally different from the
1233 ;; stand-alone CC Mode which, lacking
1234 ;; font-lock-extend-after-change-region-function, is forced to use advice
1237 ;; Of the seven CC Mode languages, currently (2009-05) only C, C++, Objc
1238 ;; (the languages with #define) and AWK Mode make non-null use of this
1240 (cons c-new-BEG c-new-END))
1246 (defvar c-mode-syntax-table nil
1247 "Syntax table used in c-mode buffers.")
1248 (or c-mode-syntax-table
1249 (setq c-mode-syntax-table
1250 (funcall (c-lang-const c-make-mode-syntax-table c))))
1252 (defvar c-mode-abbrev-table nil
1253 "Abbreviation table used in c-mode buffers.")
1254 (c-define-abbrev-table 'c-mode-abbrev-table
1255 '(("else" "else" c-electric-continued-statement 0)
1256 ("while" "while" c-electric-continued-statement 0)))
1258 (defvar c-mode-map ()
1259 "Keymap used in c-mode buffers.")
1262 (setq c-mode-map (c-make-inherited-keymap))
1263 ;; add bindings which are only useful for C
1264 (define-key c-mode-map "\C-c\C-e" 'c-macro-expand)
1267 (easy-menu-define c-c-menu c-mode-map "C Mode Commands"
1268 (cons "C" (c-lang-const c-mode-menu c)))
1270 ;; In XEmacs >= 21.5 modes should add their own entries to
1271 ;; `auto-mode-alist'. The comment form of autoload is used to avoid
1272 ;; doing this on load. That since `add-to-list' prepends the value
1273 ;; which could cause it to clobber user settings. Later emacsen have
1274 ;; an append option, but it's not safe to use.
1276 ;; The extension ".C" is associated with C++ while the lowercase
1277 ;; variant goes with C. On case insensitive file systems, this means
1278 ;; that ".c" files also might open C++ mode if the C++ entry comes
1279 ;; first on `auto-mode-alist'. Thus we try to ensure that ".C" comes
1280 ;; after ".c", and since `add-to-list' adds the entry first we have to
1281 ;; add the ".C" entry first.
1282 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.\\(cc\\|hh\\)\\'" . c++-mode))
1283 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.[ch]\\(pp\\|xx\\|\\+\\+\\)\\'" . c++-mode))
1284 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.\\(CC?\\|HH?\\)\\'" . c++-mode))
1286 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.[ch]\\'" . c-mode))
1288 ;; NB: The following two associate yacc and lex files to C Mode, which
1289 ;; is not really suitable for those formats. Anyway, afaik there's
1290 ;; currently no better mode for them, and besides this is legacy.
1291 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.y\\(acc\\)?\\'" . c-mode))
1292 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.lex\\'" . c-mode))
1294 ;; Preprocessed files generated by C and C++ compilers.
1295 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.i\\'" . c-mode))
1296 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.ii\\'" . c++-mode))
1300 (define-derived-mode c-mode prog-mode "C"
1301 "Major mode for editing K&R and ANSI C code.
1302 To submit a problem report, enter `\\[c-submit-bug-report]' from a
1303 c-mode buffer. This automatically sets up a mail buffer with version
1304 information already added. You just need to add a description of the
1305 problem, including a reproducible test case, and send the message.
1307 To see what version of CC Mode you are running, enter `\\[c-version]'.
1309 The hook `c-mode-common-hook' is run with no args at mode
1310 initialization, then `c-mode-hook'.
1314 (c-initialize-cc-mode t)
1315 (set-syntax-table c-mode-syntax-table)
1316 (setq local-abbrev-table c-mode-abbrev-table
1318 (use-local-map c-mode-map)
1319 (c-init-language-vars-for 'c-mode)
1320 (c-make-macro-with-semi-re) ; matches macro names whose expansion ends with ;
1321 (c-common-init 'c-mode)
1322 (easy-menu-add c-c-menu)
1323 (cc-imenu-init cc-imenu-c-generic-expression)
1324 (c-run-mode-hooks 'c-mode-common-hook 'c-mode-hook)
1325 (c-update-modeline))
1331 (defvar c++-mode-syntax-table nil
1332 "Syntax table used in c++-mode buffers.")
1333 (or c++-mode-syntax-table
1334 (setq c++-mode-syntax-table
1335 (funcall (c-lang-const c-make-mode-syntax-table c++))))
1337 (defvar c++-mode-abbrev-table nil
1338 "Abbreviation table used in c++-mode buffers.")
1339 (c-define-abbrev-table 'c++-mode-abbrev-table
1340 '(("else" "else" c-electric-continued-statement 0)
1341 ("while" "while" c-electric-continued-statement 0)
1342 ("catch" "catch" c-electric-continued-statement 0)))
1344 (defvar c++-mode-map ()
1345 "Keymap used in c++-mode buffers.")
1348 (setq c++-mode-map (c-make-inherited-keymap))
1349 ;; add bindings which are only useful for C++
1350 (define-key c++-mode-map "\C-c\C-e" 'c-macro-expand)
1351 (define-key c++-mode-map "\C-c:" 'c-scope-operator)
1352 (define-key c++-mode-map "<" 'c-electric-lt-gt)
1353 (define-key c++-mode-map ">" 'c-electric-lt-gt))
1355 (easy-menu-define c-c++-menu c++-mode-map "C++ Mode Commands"
1356 (cons "C++" (c-lang-const c-mode-menu c++)))
1359 (define-derived-mode c++-mode prog-mode "C++"
1360 "Major mode for editing C++ code.
1361 To submit a problem report, enter `\\[c-submit-bug-report]' from a
1362 c++-mode buffer. This automatically sets up a mail buffer with
1363 version information already added. You just need to add a description
1364 of the problem, including a reproducible test case, and send the
1367 To see what version of CC Mode you are running, enter `\\[c-version]'.
1369 The hook `c-mode-common-hook' is run with no args at mode
1370 initialization, then `c++-mode-hook'.
1374 (c-initialize-cc-mode t)
1375 (set-syntax-table c++-mode-syntax-table)
1376 (setq local-abbrev-table c++-mode-abbrev-table
1378 (use-local-map c++-mode-map)
1379 (c-init-language-vars-for 'c++-mode)
1380 (c-make-macro-with-semi-re) ; matches macro names whose expansion ends with ;
1381 (c-common-init 'c++-mode)
1382 (easy-menu-add c-c++-menu)
1383 (cc-imenu-init cc-imenu-c++-generic-expression)
1384 (c-run-mode-hooks 'c-mode-common-hook 'c++-mode-hook)
1385 (c-update-modeline))
1388 ;; Support for Objective-C
1391 (defvar objc-mode-syntax-table nil
1392 "Syntax table used in objc-mode buffers.")
1393 (or objc-mode-syntax-table
1394 (setq objc-mode-syntax-table
1395 (funcall (c-lang-const c-make-mode-syntax-table objc))))
1397 (defvar objc-mode-abbrev-table nil
1398 "Abbreviation table used in objc-mode buffers.")
1399 (c-define-abbrev-table 'objc-mode-abbrev-table
1400 '(("else" "else" c-electric-continued-statement 0)
1401 ("while" "while" c-electric-continued-statement 0)))
1403 (defvar objc-mode-map ()
1404 "Keymap used in objc-mode buffers.")
1407 (setq objc-mode-map (c-make-inherited-keymap))
1408 ;; add bindings which are only useful for Objective-C
1409 (define-key objc-mode-map "\C-c\C-e" 'c-macro-expand))
1411 (easy-menu-define c-objc-menu objc-mode-map "ObjC Mode Commands"
1412 (cons "ObjC" (c-lang-const c-mode-menu objc)))
1414 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.m\\'" . objc-mode))
1417 (define-derived-mode objc-mode prog-mode "ObjC"
1418 "Major mode for editing Objective C code.
1419 To submit a problem report, enter `\\[c-submit-bug-report]' from an
1420 objc-mode buffer. This automatically sets up a mail buffer with
1421 version information already added. You just need to add a description
1422 of the problem, including a reproducible test case, and send the
1425 To see what version of CC Mode you are running, enter `\\[c-version]'.
1427 The hook `c-mode-common-hook' is run with no args at mode
1428 initialization, then `objc-mode-hook'.
1432 (c-initialize-cc-mode t)
1433 (set-syntax-table objc-mode-syntax-table)
1434 (setq local-abbrev-table objc-mode-abbrev-table
1436 (use-local-map objc-mode-map)
1437 (c-init-language-vars-for 'objc-mode)
1438 (c-make-macro-with-semi-re) ; matches macro names whose expansion ends with ;
1439 (c-common-init 'objc-mode)
1440 (easy-menu-add c-objc-menu)
1441 (cc-imenu-init nil 'cc-imenu-objc-function)
1442 (c-run-mode-hooks 'c-mode-common-hook 'objc-mode-hook)
1443 (c-update-modeline))
1449 (defvar java-mode-syntax-table nil
1450 "Syntax table used in java-mode buffers.")
1451 (or java-mode-syntax-table
1452 (setq java-mode-syntax-table
1453 (funcall (c-lang-const c-make-mode-syntax-table java))))
1455 (defvar java-mode-abbrev-table nil
1456 "Abbreviation table used in java-mode buffers.")
1457 (c-define-abbrev-table 'java-mode-abbrev-table
1458 '(("else" "else" c-electric-continued-statement 0)
1459 ("while" "while" c-electric-continued-statement 0)
1460 ("catch" "catch" c-electric-continued-statement 0)
1461 ("finally" "finally" c-electric-continued-statement 0)))
1463 (defvar java-mode-map ()
1464 "Keymap used in java-mode buffers.")
1467 (setq java-mode-map (c-make-inherited-keymap))
1468 ;; add bindings which are only useful for Java
1471 ;; Regexp trying to describe the beginning of a Java top-level
1472 ;; definition. This is not used by CC Mode, nor is it maintained
1473 ;; since it's practically impossible to write a regexp that reliably
1474 ;; matches such a construct. Other tools are necessary.
1475 (defconst c-Java-defun-prompt-regexp
1476 "^[ \t]*\\(\\(\\(public\\|protected\\|private\\|const\\|abstract\\|synchronized\\|final\\|static\\|threadsafe\\|transient\\|native\\|volatile\\)\\s-+\\)*\\(\\(\\([[a-zA-Z][][_$.a-zA-Z0-9]*[][_$.a-zA-Z0-9]+\\|[[a-zA-Z]\\)\\s-*\\)\\s-+\\)\\)?\\(\\([[a-zA-Z][][_$.a-zA-Z0-9]*\\s-+\\)\\s-*\\)?\\([_a-zA-Z][^][ \t:;.,{}()\x7f=]*\\|\\([_$a-zA-Z][_$.a-zA-Z0-9]*\\)\\)\\s-*\\(([^);{}]*)\\)?\\([] \t]*\\)\\(\\s-*\\<throws\\>\\s-*\\(\\([_$a-zA-Z][_$.a-zA-Z0-9]*\\)[, \t\n\r\f\v]*\\)+\\)?\\s-*")
1478 (easy-menu-define c-java-menu java-mode-map "Java Mode Commands"
1479 (cons "Java" (c-lang-const c-mode-menu java)))
1481 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.java\\'" . java-mode))
1484 (define-derived-mode java-mode prog-mode "Java"
1485 "Major mode for editing Java code.
1486 To submit a problem report, enter `\\[c-submit-bug-report]' from a
1487 java-mode buffer. This automatically sets up a mail buffer with
1488 version information already added. You just need to add a description
1489 of the problem, including a reproducible test case, and send the
1492 To see what version of CC Mode you are running, enter `\\[c-version]'.
1494 The hook `c-mode-common-hook' is run with no args at mode
1495 initialization, then `java-mode-hook'.
1499 (c-initialize-cc-mode t)
1500 (set-syntax-table java-mode-syntax-table)
1501 (setq local-abbrev-table java-mode-abbrev-table
1503 (use-local-map java-mode-map)
1504 (c-init-language-vars-for 'java-mode)
1505 (c-common-init 'java-mode)
1506 (easy-menu-add c-java-menu)
1507 (cc-imenu-init cc-imenu-java-generic-expression)
1508 (c-run-mode-hooks 'c-mode-common-hook 'java-mode-hook)
1509 (c-update-modeline))
1512 ;; Support for CORBA's IDL language
1515 (defvar idl-mode-syntax-table nil
1516 "Syntax table used in idl-mode buffers.")
1517 (or idl-mode-syntax-table
1518 (setq idl-mode-syntax-table
1519 (funcall (c-lang-const c-make-mode-syntax-table idl))))
1521 (defvar idl-mode-abbrev-table nil
1522 "Abbreviation table used in idl-mode buffers.")
1523 (c-define-abbrev-table 'idl-mode-abbrev-table nil)
1525 (defvar idl-mode-map ()
1526 "Keymap used in idl-mode buffers.")
1529 (setq idl-mode-map (c-make-inherited-keymap))
1530 ;; add bindings which are only useful for IDL
1533 (easy-menu-define c-idl-menu idl-mode-map "IDL Mode Commands"
1534 (cons "IDL" (c-lang-const c-mode-menu idl)))
1536 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.idl\\'" . idl-mode))
1539 (define-derived-mode idl-mode prog-mode "IDL"
1540 "Major mode for editing CORBA's IDL, PSDL and CIDL code.
1541 To submit a problem report, enter `\\[c-submit-bug-report]' from an
1542 idl-mode buffer. This automatically sets up a mail buffer with
1543 version information already added. You just need to add a description
1544 of the problem, including a reproducible test case, and send the
1547 To see what version of CC Mode you are running, enter `\\[c-version]'.
1549 The hook `c-mode-common-hook' is run with no args at mode
1550 initialization, then `idl-mode-hook'.
1554 (c-initialize-cc-mode t)
1555 (set-syntax-table idl-mode-syntax-table)
1556 (setq local-abbrev-table idl-mode-abbrev-table)
1557 (use-local-map idl-mode-map)
1558 (c-init-language-vars-for 'idl-mode)
1559 (c-common-init 'idl-mode)
1560 (easy-menu-add c-idl-menu)
1561 ;;(cc-imenu-init cc-imenu-idl-generic-expression) ;TODO
1562 (c-run-mode-hooks 'c-mode-common-hook 'idl-mode-hook)
1563 (c-update-modeline))
1569 (defvar pike-mode-syntax-table nil
1570 "Syntax table used in pike-mode buffers.")
1571 (or pike-mode-syntax-table
1572 (setq pike-mode-syntax-table
1573 (funcall (c-lang-const c-make-mode-syntax-table pike))))
1575 (defvar pike-mode-abbrev-table nil
1576 "Abbreviation table used in pike-mode buffers.")
1577 (c-define-abbrev-table 'pike-mode-abbrev-table
1578 '(("else" "else" c-electric-continued-statement 0)
1579 ("while" "while" c-electric-continued-statement 0)))
1581 (defvar pike-mode-map ()
1582 "Keymap used in pike-mode buffers.")
1585 (setq pike-mode-map (c-make-inherited-keymap))
1586 ;; additional bindings
1587 (define-key pike-mode-map "\C-c\C-e" 'c-macro-expand))
1589 (easy-menu-define c-pike-menu pike-mode-map "Pike Mode Commands"
1590 (cons "Pike" (c-lang-const c-mode-menu pike)))
1592 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.\\(u?lpc\\|pike\\|pmod\\(\\.in\\)?\\)\\'" . pike-mode))
1593 ;;;###autoload (add-to-list 'interpreter-mode-alist '("pike" . pike-mode))
1596 (define-derived-mode pike-mode prog-mode "Pike"
1597 "Major mode for editing Pike code.
1598 To submit a problem report, enter `\\[c-submit-bug-report]' from a
1599 pike-mode buffer. This automatically sets up a mail buffer with
1600 version information already added. You just need to add a description
1601 of the problem, including a reproducible test case, and send the
1604 To see what version of CC Mode you are running, enter `\\[c-version]'.
1606 The hook `c-mode-common-hook' is run with no args at mode
1607 initialization, then `pike-mode-hook'.
1611 (c-initialize-cc-mode t)
1612 (set-syntax-table pike-mode-syntax-table)
1613 (setq local-abbrev-table pike-mode-abbrev-table
1615 (use-local-map pike-mode-map)
1616 (c-init-language-vars-for 'pike-mode)
1617 (c-common-init 'pike-mode)
1618 (easy-menu-add c-pike-menu)
1619 ;;(cc-imenu-init cc-imenu-pike-generic-expression) ;TODO
1620 (c-run-mode-hooks 'c-mode-common-hook 'pike-mode-hook)
1621 (c-update-modeline))
1626 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.awk\\'" . awk-mode))
1627 ;;;###autoload (add-to-list 'interpreter-mode-alist '("awk" . awk-mode))
1628 ;;;###autoload (add-to-list 'interpreter-mode-alist '("mawk" . awk-mode))
1629 ;;;###autoload (add-to-list 'interpreter-mode-alist '("nawk" . awk-mode))
1630 ;;;###autoload (add-to-list 'interpreter-mode-alist '("gawk" . awk-mode))
1632 ;;; Autoload directives must be on the top level, so we construct an
1633 ;;; autoload form instead.
1634 ;;;###autoload (autoload 'awk-mode "cc-mode" "Major mode for editing AWK code." t)
1636 (defvar awk-mode-abbrev-table nil
1637 "Abbreviation table used in awk-mode buffers.")
1638 (c-define-abbrev-table 'awk-mode-abbrev-table
1639 '(("else" "else" c-electric-continued-statement 0)
1640 ("while" "while" c-electric-continued-statement 0)))
1642 (defvar awk-mode-map ()
1643 "Keymap used in awk-mode buffers.")
1646 (setq awk-mode-map (c-make-inherited-keymap))
1647 ;; add bindings which are only useful for awk.
1648 (define-key awk-mode-map "#" 'self-insert-command)
1649 (define-key awk-mode-map "/" 'self-insert-command)
1650 (define-key awk-mode-map "*" 'self-insert-command)
1651 (define-key awk-mode-map "\C-c\C-n" 'undefined) ; #if doesn't exist in awk.
1652 (define-key awk-mode-map "\C-c\C-p" 'undefined)
1653 (define-key awk-mode-map "\C-c\C-u" 'undefined)
1654 (define-key awk-mode-map "\M-a" 'c-beginning-of-statement) ; 2003/10/7
1655 (define-key awk-mode-map "\M-e" 'c-end-of-statement) ; 2003/10/7
1656 (define-key awk-mode-map "\C-\M-a" 'c-awk-beginning-of-defun)
1657 (define-key awk-mode-map "\C-\M-e" 'c-awk-end-of-defun))
1659 (easy-menu-define c-awk-menu awk-mode-map "AWK Mode Commands"
1660 (cons "AWK" (c-lang-const c-mode-menu awk)))
1662 ;; (require 'cc-awk) brings these in.
1663 (defvar awk-mode-syntax-table)
1664 (declare-function c-awk-unstick-NL-prop "cc-awk" ())
1667 (define-derived-mode awk-mode prog-mode "AWK"
1668 "Major mode for editing AWK code.
1669 To submit a problem report, enter `\\[c-submit-bug-report]' from an
1670 awk-mode buffer. This automatically sets up a mail buffer with version
1671 information already added. You just need to add a description of the
1672 problem, including a reproducible test case, and send the message.
1674 To see what version of CC Mode you are running, enter `\\[c-version]'.
1676 The hook `c-mode-common-hook' is run with no args at mode
1677 initialization, then `awk-mode-hook'.
1681 ;; We need the next line to stop the macro defining
1682 ;; `awk-mode-syntax-table'. This would mask the real table which is
1683 ;; declared in cc-awk.el and hasn't yet been loaded.
1685 (require 'cc-awk) ; Added 2003/6/10.
1686 (c-initialize-cc-mode t)
1687 (set-syntax-table awk-mode-syntax-table)
1688 (setq local-abbrev-table awk-mode-abbrev-table
1690 (use-local-map awk-mode-map)
1691 (c-init-language-vars-for 'awk-mode)
1692 (c-common-init 'awk-mode)
1693 (c-awk-unstick-NL-prop)
1695 (c-run-mode-hooks 'c-mode-common-hook 'awk-mode-hook)
1696 (c-update-modeline))
1701 (defconst c-mode-help-address
1702 "bug-cc-mode@gnu.org"
1703 "Address(es) for CC Mode bug reports.")
1706 "Echo the current version of CC Mode in the minibuffer."
1708 (message "Using CC Mode version %s" c-version)
1709 (c-keep-region-active))
1711 (define-obsolete-variable-alias 'c-prepare-bug-report-hooks
1712 'c-prepare-bug-report-hook "24.3")
1713 (defvar c-prepare-bug-report-hook nil)
1715 ;; Dynamic variables used by reporter.
1716 (defvar reporter-prompt-for-summary-p)
1717 (defvar reporter-dont-compact-list)
1719 (defun c-submit-bug-report ()
1720 "Submit via mail a bug report on CC Mode."
1724 (let ((reporter-prompt-for-summary-p t)
1725 (reporter-dont-compact-list '(c-offsets-alist))
1726 (style c-indentation-style)
1727 (c-features c-emacs-features))
1729 (if (y-or-n-p "Do you want to submit a report on CC Mode? ")
1731 (reporter-submit-bug-report
1733 (concat "CC Mode " c-version " (" mode-name ")")
1736 '(c-buffer-is-cc-mode
1738 c-syntactic-indentation
1739 c-syntactic-indentation-in-macros
1741 c-auto-align-backslashes
1742 c-backspace-function
1744 c-electric-pound-behavior
1746 c-enable-xemacs-performance-kludge-p
1747 c-old-style-variable-behavior
1751 parse-sexp-ignore-comments
1752 parse-sexp-lookup-properties
1753 lookup-syntax-properties
1754 ;; A brain-damaged XEmacs only variable that, if
1755 ;; set to nil can cause all kinds of chaos.
1756 signal-error-on-buffer-boundary
1757 ;; Variables that affect line breaking and comments.
1767 adaptive-fill-regexp)
1769 (mapc (lambda (var) (unless (boundp var)
1770 (setq vars (delq var vars))))
1771 '(signal-error-on-buffer-boundary
1775 font-lock-maximum-decoration
1776 parse-sexp-lookup-properties
1777 lookup-syntax-properties))
1780 (run-hooks 'c-prepare-bug-report-hook)
1781 (insert (format "Buffer Style: %s\nc-emacs-features: %s\n"
1782 style c-features)))))))
1785 (cc-provide 'cc-mode)
1787 ;;; cc-mode.el ends here