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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
8 ;; 1987 Dave Detlefs
9 ;; 1987 Stewart Clamen
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/>.
30 ;;; Commentary:
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
50 ;; cplus-md1.el..
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
70 ;; visiting
72 ;; http://lists.sourceforge.net/mailman/listinfo/cc-mode-announce
74 ;;; Code:
76 ;; For Emacs < 22.2.
77 (eval-and-compile
78 (unless (fboundp 'declare-function) (defmacro declare-function (&rest r))))
80 (eval-when-compile
81 (let ((load-path
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)
85 load-path)))
86 (load "cc-bytecomp" nil t)))
88 (cc-require 'cc-defs)
89 (cc-require-when-compile 'cc-langs)
90 (cc-require 'cc-vars)
91 (cc-require 'cc-engine)
92 (cc-require 'cc-styles)
93 (cc-require 'cc-cmds)
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
104 ;; font-lock.
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
126 ;; use:
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))))
168 ;;;###autoload
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)
180 c-initialization-ok)
181 (unless (get 'c-initialize-cc-mode initprop)
182 (unwind-protect
183 (progn
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)))
200 ;;; Common routines.
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.
210 (cond
211 ;; Emacs
212 ((cc-bytecomp-fboundp 'set-keymap-parent)
213 (set-keymap-parent map c-mode-base-map))
214 ;; XEmacs
215 ((cc-bytecomp-fboundp 'set-keymap-parents)
216 (set-keymap-parents map c-mode-base-map))
217 ;; incompatible
218 (t (error "CC Mode is incompatible with this version of Emacs")))
219 map))
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)))))
228 (while defs
229 (condition-case nil
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
240 (progn
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)))
250 (if c-mode-base-map
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
263 'c-end-of-statement
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
270 ;; here?
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
332 ;; as appropriate.
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
384 instead of \"C\".
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
408 ;; more.
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
413 ;; id, else nil.
414 (save-excursion
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))
421 t))))
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
427 ;; be present.
428 (or (c-partial-ws-p beg end)
429 (save-excursion
430 (progn
431 (goto-char beg)
432 (or (eq beg (point-min))
433 (c-skip-ws-backward (1- beg))
434 (/= (point) beg)
435 (= (c-backward-token-2) 1)
436 (c-unfind-type (buffer-substring-no-properties
437 (point) beg)))
438 (goto-char end)
439 (or (eq end (point-max))
440 (c-skip-ws-forward (1+ end))
441 (/= (point) end)
442 (progn (forward-char) (c-end-of-current-token) nil)
443 (c-unfind-type (buffer-substring-no-properties
444 end (point))))))))
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
453 ;; pos 96.
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.
513 (c-state-cache-init)
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
520 ;; that.
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.
526 ;; Emacs.
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)
566 c-indentation-style
567 (not (string-equal c-indentation-style
568 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)))
583 (c-update-modeline)
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.
601 (font-lock-mode 0)
602 (font-lock-mode 1)))
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'.
608 (defvar c-new-BEG 0)
609 (make-variable-buffer-local 'c-new-BEG)
610 (defvar c-new-END 0)
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."
624 (unless mode
625 ;; Called from an old third party package. The fallback is to
626 ;; initialize for C.
627 (c-init-language-vars-for 'c-mode))
629 (c-basic-common-init mode c-default-style)
630 (when mode
631 ;; Only initialize font locking if we aren't called from an old package.
632 (c-font-lock-init))
634 ;; Starting a mode is a sort of "change". So call the change functions...
635 (save-restriction
636 (widen)
637 (setq c-new-BEG (point-min))
638 (setq c-new-END (point-max))
639 (save-excursion
640 (mapc (lambda (fn)
641 (funcall fn (point-min) (point-max)))
642 c-get-state-before-change-functions)
643 (mapc (lambda (fn)
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)
651 (let ((rfn (assq mode c-require-final-newline)))
652 (when rfn
653 (and (cdr rfn)
654 (set (make-local-variable 'require-final-newline)
655 mode-require-final-newline)))))
657 (defun c-count-cfss (lv-alist)
658 ;; LV-ALIST is an alist like `file-local-variables-alist'. Count how many
659 ;; elements with the key `c-file-style' there are in it.
660 (let ((elt-ptr lv-alist) elt (cownt 0))
661 (while elt-ptr
662 (setq elt (car elt-ptr)
663 elt-ptr (cdr elt-ptr))
664 (when (eq (car elt) 'c-file-style)
665 (setq cownt (1+ cownt))))
666 cownt))
668 (defun c-before-hack-hook ()
669 "Set the CC Mode style and \"offsets\" when in the buffer's local variables.
670 They are set only when, respectively, the pseudo variables
671 `c-file-style' and `c-file-offsets' are present in the list.
673 This function is called from the hook `before-hack-local-variables-hook'."
674 (when c-buffer-is-cc-mode
675 (let ((mode-cons (assq 'mode file-local-variables-alist))
676 (stile (cdr (assq 'c-file-style file-local-variables-alist)))
677 (offsets (cdr (assq 'c-file-offsets file-local-variables-alist))))
678 (when mode-cons
679 (hack-one-local-variable (car mode-cons) (cdr mode-cons))
680 (setq file-local-variables-alist
681 (delq mode-cons file-local-variables-alist)))
682 (when stile
683 (or (stringp stile) (error "c-file-style is not a string"))
684 (if (boundp 'dir-local-variables-alist)
685 ;; Determine whether `c-file-style' was set in the file's local
686 ;; variables or in a .dir-locals.el (a directory setting).
687 (let ((cfs-in-file-and-dir-count
688 (c-count-cfss file-local-variables-alist))
689 (cfs-in-dir-count (c-count-cfss dir-local-variables-alist)))
690 (c-set-style stile
691 (and (= cfs-in-file-and-dir-count cfs-in-dir-count)
692 'keep-defaults)))
693 (c-set-style stile)))
694 (when offsets
695 (mapc
696 (lambda (langentry)
697 (let ((langelem (car langentry))
698 (offset (cdr langentry)))
699 (c-set-offset langelem offset)))
700 offsets)))))
702 (defun c-remove-any-local-eval-or-mode-variables ()
703 ;; If the buffer specifies `mode' or `eval' in its File Local Variable list
704 ;; or on the first line, remove all occurrences. See
705 ;; `c-postprocess-file-styles' for justification. There is no need to save
706 ;; point here, or even bother too much about the buffer contents. However,
707 ;; DON'T mess up the kill-ring.
709 ;; Most of the code here is derived from Emacs 21.3's `hack-local-variables'
710 ;; in files.el.
711 (goto-char (point-max))
712 (search-backward "\n\^L" (max (- (point-max) 3000) (point-min)) 'move)
713 (let (lv-point (prefix "") (suffix ""))
714 (when (let ((case-fold-search t))
715 (search-forward "Local Variables:" nil t))
716 (setq lv-point (point))
717 ;; The prefix is what comes before "local variables:" in its line.
718 ;; The suffix is what comes after "local variables:" in its line.
719 (skip-chars-forward " \t")
720 (or (eolp)
721 (setq suffix (buffer-substring (point)
722 (progn (end-of-line) (point)))))
723 (goto-char (match-beginning 0))
724 (or (bolp)
725 (setq prefix
726 (buffer-substring (point)
727 (progn (beginning-of-line) (point)))))
729 (while (search-forward-regexp
730 (concat "^[ \t]*"
731 (regexp-quote prefix)
732 "\\(mode\\|eval\\):.*"
733 (regexp-quote suffix)
734 "$")
735 nil t)
736 (forward-line 0)
737 (delete-region (point) (progn (forward-line) (point)))))
739 ;; Delete the first line, if we've got one, in case it contains a mode spec.
740 (unless (and lv-point
741 (progn (goto-char lv-point)
742 (forward-line 0)
743 (bobp)))
744 (goto-char (point-min))
745 (unless (eobp)
746 (delete-region (point) (progn (forward-line) (point)))))))
748 (defun c-postprocess-file-styles ()
749 "Function that post processes relevant file local variables in CC Mode.
750 Currently, this function simply applies any style and offset settings
751 found in the file's Local Variable list. It first applies any style
752 setting found in `c-file-style', then it applies any offset settings
753 it finds in `c-file-offsets'.
755 Note that the style variables are always made local to the buffer."
757 ;; apply file styles and offsets
758 (when c-buffer-is-cc-mode
759 (if (or c-file-style c-file-offsets)
760 (c-make-styles-buffer-local t))
761 (when c-file-style
762 (or (stringp c-file-style)
763 (error "c-file-style is not a string"))
764 (c-set-style c-file-style))
766 (and c-file-offsets
767 (mapc
768 (lambda (langentry)
769 (let ((langelem (car langentry))
770 (offset (cdr langentry)))
771 (c-set-offset langelem offset)))
772 c-file-offsets))
773 ;; Problem: The file local variable block might have explicitly set a
774 ;; style variable. The `c-set-style' or `mapcar' call might have
775 ;; overwritten this. So we run `hack-local-variables' again to remedy
776 ;; this. There are no guarantees this will work properly, particularly as
777 ;; we have no control over what the other hook functions on
778 ;; `hack-local-variables-hook' would have done. We now (2006/2/1) remove
779 ;; any `eval' or `mode' expressions before we evaluate again (see below).
780 ;; ACM, 2005/11/2.
782 ;; Problem (bug reported by Gustav Broberg): if one of the variables is
783 ;; `mode', this will invoke c-mode (etc.) again, setting up the style etc.
784 ;; We prevent this by temporarily removing `mode' from the Local Variables
785 ;; section.
786 (if (or c-file-style c-file-offsets)
787 (let ((hack-local-variables-hook nil) (inhibit-read-only t))
788 (c-tentative-buffer-changes
789 (c-remove-any-local-eval-or-mode-variables)
790 (hack-local-variables))
791 nil))))
793 (if (boundp 'before-hack-local-variables-hook)
794 (add-hook 'before-hack-local-variables-hook 'c-before-hack-hook)
795 (add-hook 'hack-local-variables-hook 'c-postprocess-file-styles))
797 (defmacro c-run-mode-hooks (&rest hooks)
798 ;; Emacs 21.1 has introduced a system with delayed mode hooks that
799 ;; requires the use of the new function `run-mode-hooks'.
800 (if (cc-bytecomp-fboundp 'run-mode-hooks)
801 `(run-mode-hooks ,@hooks)
802 `(progn ,@(mapcar (lambda (hook) `(run-hooks ,hook)) hooks))))
805 ;;; Change hooks, linking with Font Lock.
807 ;; Buffer local variables recording Beginning/End-of-Macro position before a
808 ;; change, when a macro straddles, respectively, the BEG or END (or both) of
809 ;; the change region. Otherwise these have the values BEG/END.
810 (defvar c-old-BOM 0)
811 (make-variable-buffer-local 'c-old-BOM)
812 (defvar c-old-EOM 0)
813 (make-variable-buffer-local 'c-old-EOM)
815 (defun c-extend-region-for-CPP (beg end)
816 ;; Set c-old-BOM or c-old-EOM respectively to BEG, END, each extended to the
817 ;; beginning/end of any preprocessor construct they may be in.
819 ;; Point is undefined both before and after this function call; the buffer
820 ;; has already been widened, and match-data saved. The return value is
821 ;; meaningless.
823 ;; This function is in the C/C++/ObjC values of
824 ;; `c-get-state-before-change-functions' and is called exclusively as a
825 ;; before change function.
826 (goto-char beg)
827 (c-beginning-of-macro)
828 (setq c-old-BOM (point))
830 (goto-char end)
831 (when (c-beginning-of-macro)
832 (c-end-of-macro)
833 (or (eobp) (forward-char))) ; Over the terminating NL which may be marked
834 ; with a c-cpp-delimiter category property
835 (setq c-old-EOM (point)))
837 (defun c-extend-font-lock-region-for-macros (begg endd &optional old-len)
838 ;; Extend the region (BEGG ENDD) to cover all (possibly changed)
839 ;; preprocessor macros; return the cons (new-BEG . new-END). OLD-LEN should
840 ;; be either the old length parameter when called from an
841 ;; after-change-function, or nil otherwise. This defun uses the variables
842 ;; c-old-BOM, c-new-BOM.
844 ;; Point is undefined on both entry and exit to this function. The buffer
845 ;; will have been widened on entry.
846 (let (limits new-beg new-end)
847 (goto-char c-old-BOM) ; already set to old start of macro or begg.
848 (setq new-beg
849 (min begg
850 (if (setq limits (c-state-literal-at (point)))
851 (cdr limits) ; go forward out of any string or comment.
852 (point))))
854 (goto-char endd)
855 (if (setq limits (c-state-literal-at (point)))
856 (goto-char (car limits))) ; go backward out of any string or comment.
857 (if (c-beginning-of-macro)
858 (c-end-of-macro))
859 (setq new-end (max endd
860 (if old-len
861 (+ (- c-old-EOM old-len) (- endd begg))
862 c-old-EOM)
863 (point)))
864 (cons new-beg new-end)))
866 (defun c-neutralize-CPP-line (beg end)
867 ;; BEG and END bound a region, typically a preprocessor line. Put a
868 ;; "punctuation" syntax-table property on syntactically obtrusive
869 ;; characters, ones which would interact syntactically with stuff outside
870 ;; this region.
872 ;; These are unmatched string delimiters, or unmatched
873 ;; parens/brackets/braces. An unclosed comment is regarded as valid, NOT
874 ;; obtrusive.
875 (save-excursion
876 (let (s)
877 (while
878 (progn
879 (setq s (parse-partial-sexp beg end -1))
880 (cond
881 ((< (nth 0 s) 0) ; found an unmated ),},]
882 (c-put-char-property (1- (point)) 'syntax-table '(1))
884 ((nth 3 s) ; In a string
885 (c-put-char-property (nth 8 s) 'syntax-table '(1))
887 ((> (nth 0 s) 0) ; In a (,{,[
888 (c-put-char-property (nth 1 s) 'syntax-table '(1))
890 (t nil)))))))
892 (defun c-neutralize-syntax-in-and-mark-CPP (begg endd old-len)
893 ;; (i) Extend the font lock region to cover all changed preprocessor
894 ;; regions; it does this by setting the variables `c-new-BEG' and
895 ;; `c-new-END' to the new boundaries.
897 ;; (ii) "Neutralize" every preprocessor line wholly or partially in the
898 ;; extended changed region. "Restore" lines which were CPP lines before the
899 ;; change and are no longer so; these can be located from the Buffer local
900 ;; variables `c-old-BOM' and `c-old-EOM'.
902 ;; (iii) Mark every CPP construct by placing a `category' property value
903 ;; `c-cpp-delimiter' at its start and end. The marked characters are the
904 ;; opening # and usually the terminating EOL, but sometimes the character
905 ;; before a comment/string delimiter.
907 ;; That is, set syntax-table properties on characters that would otherwise
908 ;; interact syntactically with those outside the CPP line(s).
910 ;; This function is called from an after-change function, BEGG ENDD and
911 ;; OLD-LEN being the standard parameters. It prepares the buffer for font
912 ;; locking, hence must get called before `font-lock-after-change-function'.
914 ;; Point is undefined both before and after this function call, the buffer
915 ;; has been widened, and match-data saved. The return value is ignored.
917 ;; This function is in the C/C++/ObjC value of `c-before-font-lock-functions'.
919 ;; Note: SPEED _MATTERS_ IN THIS FUNCTION!!!
921 ;; This function might make hidden buffer changes.
922 (c-save-buffer-state (new-bounds)
923 ;; First determine the region, (c-new-BEG c-new-END), which will get font
924 ;; locked. It might need "neutralizing". This region may not start
925 ;; inside a string, comment, or macro.
926 (setq new-bounds (c-extend-font-lock-region-for-macros
927 c-new-BEG c-new-END old-len))
928 (setq c-new-BEG (max (car new-bounds) (c-determine-limit 500 begg))
929 c-new-END (min (cdr new-bounds) (c-determine-+ve-limit 500 endd)))
930 ;; Clear all old relevant properties.
931 (c-clear-char-property-with-value c-new-BEG c-new-END 'syntax-table '(1))
932 (c-clear-char-property-with-value c-new-BEG c-new-END 'category 'c-cpp-delimiter)
933 ;; FIXME!!! What about the "<" and ">" category properties? 2009-11-16
935 ;; Add needed properties to each CPP construct in the region.
936 (goto-char c-new-BEG)
937 (let ((pps-position c-new-BEG) pps-state mbeg)
938 (while (and (< (point) c-new-END)
939 (search-forward-regexp c-anchored-cpp-prefix c-new-END t))
940 ;; If we've found a "#" inside a string/comment, ignore it.
941 (setq pps-state
942 (parse-partial-sexp pps-position (point) nil nil pps-state)
943 pps-position (point))
944 (unless (or (nth 3 pps-state) ; in a string?
945 (nth 4 pps-state)) ; in a comment?
946 (goto-char (match-beginning 0))
947 (setq mbeg (point))
948 (if (> (c-syntactic-end-of-macro) mbeg)
949 (progn
950 (c-neutralize-CPP-line mbeg (point))
951 (c-set-cpp-delimiters mbeg (point))
952 ;(setq pps-position (point))
954 (forward-line)) ; no infinite loop with, e.g., "#//"
955 )))))
957 (defun c-before-change (beg end)
958 ;; Function to be put on `before-change-functions'. Primarily, this calls
959 ;; the language dependent `c-get-state-before-change-functions'. It is
960 ;; otherwise used only to remove stale entries from the `c-found-types'
961 ;; cache, and to record entries which a `c-after-change' function might
962 ;; confirm as stale.
964 ;; Note that this function must be FAST rather than accurate. Note
965 ;; also that it only has any effect when font locking is enabled.
966 ;; We exploit this by checking for font-lock-*-face instead of doing
967 ;; rigorous syntactic analysis.
969 ;; If either change boundary is wholly inside an identifier, delete
970 ;; it/them from the cache. Don't worry about being inside a string
971 ;; or a comment - "wrongly" removing a symbol from `c-found-types'
972 ;; isn't critical.
973 (setq c-maybe-stale-found-type nil)
974 (save-restriction
975 (save-match-data
976 (widen)
977 (save-excursion
978 ;; Are we inserting/deleting stuff in the middle of an identifier?
979 (c-unfind-enclosing-token beg)
980 (c-unfind-enclosing-token end)
981 ;; Are we coalescing two tokens together, e.g. "fo o" -> "foo"?
982 (when (< beg end)
983 (c-unfind-coalesced-tokens beg end))
984 ;; Are we (potentially) disrupting the syntactic context which
985 ;; makes a type a type? E.g. by inserting stuff after "foo" in
986 ;; "foo bar;", or before "foo" in "typedef foo *bar;"?
988 ;; We search for appropriate c-type properties "near" the change.
989 ;; First, find an appropriate boundary for this property search.
990 (let (lim
991 type type-pos
992 marked-id term-pos
993 (end1
994 (or (and (eq (get-text-property end 'face) 'font-lock-comment-face)
995 (previous-single-property-change end 'face))
996 end)))
997 (when (>= end1 beg) ; Don't hassle about changes entirely in comments.
998 ;; Find a limit for the search for a `c-type' property
999 (while
1000 (and (/= (skip-chars-backward "^;{}") 0)
1001 (> (point) (point-min))
1002 (memq (c-get-char-property (1- (point)) 'face)
1003 '(font-lock-comment-face font-lock-string-face))))
1004 (setq lim (max (point-min) (1- (point))))
1006 ;; Look for the latest `c-type' property before end1
1007 (when (and (> end1 (point-min))
1008 (setq type-pos
1009 (if (get-text-property (1- end1) 'c-type)
1010 end1
1011 (previous-single-property-change end1 'c-type nil lim))))
1012 (setq type (get-text-property (max (1- type-pos) lim) 'c-type))
1014 (when (memq type '(c-decl-id-start c-decl-type-start))
1015 ;; Get the identifier, if any, that the property is on.
1016 (goto-char (1- type-pos))
1017 (setq marked-id
1018 (when (looking-at "\\(\\sw\\|\\s_\\)")
1019 (c-beginning-of-current-token)
1020 (buffer-substring-no-properties (point) type-pos)))
1022 (goto-char end1)
1023 (skip-chars-forward "^;{}") ; FIXME!!! loop for comment, maybe
1024 (setq lim (point))
1025 (setq term-pos
1026 (or (next-single-property-change end 'c-type nil lim) lim))
1027 (setq c-maybe-stale-found-type
1028 (list type marked-id
1029 type-pos term-pos
1030 (buffer-substring-no-properties type-pos term-pos)
1031 (buffer-substring-no-properties beg end)))))))
1033 (if c-get-state-before-change-functions
1034 (mapc (lambda (fn)
1035 (funcall fn beg end))
1036 c-get-state-before-change-functions))
1038 ;; The following must be done here rather than in `c-after-change' because
1039 ;; newly inserted parens would foul up the invalidation algorithm.
1040 (c-invalidate-state-cache beg))
1042 (defvar c-in-after-change-fontification nil)
1043 (make-variable-buffer-local 'c-in-after-change-fontification)
1044 ;; A flag to prevent region expanding stuff being done twice for after-change
1045 ;; fontification.
1047 (defun c-after-change (beg end old-len)
1048 ;; Function put on `after-change-functions' to adjust various caches
1049 ;; etc. Prefer speed to finesse here, since there will be an order
1050 ;; of magnitude more calls to this function than any of the
1051 ;; functions that use the caches.
1053 ;; Note that care must be taken so that this is called before any
1054 ;; font-lock callbacks since we might get calls to functions using
1055 ;; these caches from inside them, and we must thus be sure that this
1056 ;; has already been executed.
1058 ;; This calls the language variable c-before-font-lock-functions, if non nil.
1059 ;; This typically sets `syntax-table' properties.
1061 (c-save-buffer-state ()
1062 ;; When `combine-after-change-calls' is used we might get calls
1063 ;; with regions outside the current narrowing. This has been
1064 ;; observed in Emacs 20.7.
1065 (save-restriction
1066 (save-match-data ; c-recognize-<>-arglists changes match-data
1067 (widen)
1069 (when (> end (point-max))
1070 ;; Some emacsen might return positions past the end. This has been
1071 ;; observed in Emacs 20.7 when rereading a buffer changed on disk
1072 ;; (haven't been able to minimize it, but Emacs 21.3 appears to
1073 ;; work).
1074 (setq end (point-max))
1075 (when (> beg end)
1076 (setq beg end)))
1078 ;; C-y is capable of spuriously converting category properties
1079 ;; c-</>-as-paren-syntax into hard syntax-table properties. Remove
1080 ;; these when it happens.
1081 (c-clear-char-property-with-value beg end 'syntax-table
1082 c-<-as-paren-syntax)
1083 (c-clear-char-property-with-value beg end 'syntax-table
1084 c->-as-paren-syntax)
1086 (c-trim-found-types beg end old-len) ; maybe we don't need all of these.
1087 (c-invalidate-sws-region-after beg end)
1088 ;; (c-invalidate-state-cache beg) ; moved to `c-before-change'.
1089 (c-invalidate-find-decl-cache beg)
1091 (when c-recognize-<>-arglists
1092 (c-after-change-check-<>-operators beg end))
1094 ;; (c-new-BEG c-new-END) will be the region to fontify. It may become
1095 ;; larger than (beg end).
1096 (setq c-new-BEG beg
1097 c-new-END end)
1098 (setq c-in-after-change-fontification t)
1099 (save-excursion
1100 (mapc (lambda (fn)
1101 (funcall fn beg end old-len))
1102 c-before-font-lock-functions))))))
1104 (defun c-set-fl-decl-start (pos)
1105 ;; If the beginning of the line containing POS is in the middle of a "local"
1106 ;; declaration (i.e. one which does not start outside of braces enclosing
1107 ;; POS, such as a struct), return the beginning of that declaration.
1108 ;; Otherwise return POS. Note that declarations, in this sense, can be
1109 ;; nested.
1111 ;; This function is called indirectly from font locking stuff - either from
1112 ;; c-after-change (to prepare for after-change font-locking) or from font
1113 ;; lock context (etc.) fontification.
1114 (let ((lit-limits (c-literal-limits))
1115 (new-pos pos)
1116 bod-lim bo-decl)
1117 (goto-char (c-point 'bol new-pos))
1118 (when lit-limits ; Comment or string.
1119 (goto-char (car lit-limits)))
1120 (setq bod-lim (c-determine-limit 500))
1122 (while
1123 ;; Go to a less nested declaration each time round this loop.
1124 (and
1125 (eq (car (c-beginning-of-decl-1 bod-lim)) 'same)
1126 (progn (setq bo-decl (point))
1127 ;; Are we looking at a keyword such as "template" or
1128 ;; "typedef" which can decorate a type, or the type itself?
1129 (when (or (looking-at c-prefix-spec-kwds-re)
1130 (c-forward-type t))
1131 ;; We've found another candidate position.
1132 (setq new-pos (min new-pos bo-decl))
1133 (goto-char bo-decl))
1135 ;; Try and go out a level to search again.
1136 (progn
1137 (c-backward-syntactic-ws bod-lim)
1138 (and (> (point) bod-lim)
1139 (or (memq (char-before) '(?\( ?\[))
1140 (and (eq (char-before) ?\<)
1141 (eq (c-get-char-property
1142 (1- (point)) 'syntax-table)
1143 c-<-as-paren-syntax)))))
1144 (not (bobp)))
1145 (backward-char))
1146 new-pos)) ; back over (, [, <.
1148 (defun c-change-set-fl-decl-start (beg end old-len)
1149 ;; Set c-new-BEG to the beginning of a "local" declaration if it('s BOL) is
1150 ;; inside one. This is called from an after-change-function, but the
1151 ;; parameters BEG END and OLD-LEN are ignored. See `c-set-fl-decl-start'
1152 ;; for the detailed functionality.
1153 (if font-lock-mode
1154 (setq c-new-BEG (c-set-fl-decl-start c-new-BEG))))
1156 (defun c-context-set-fl-decl-start (beg end)
1157 ;; Return a cons (NEW-BEG . END), where NEW-BEG is the beginning of a
1158 ;; "local" declaration (BOL at) NEW is inside or BEG. See
1159 ;; `c-set-fl-decl-start' for the detailed functionality.
1160 (cons (c-set-fl-decl-start beg) end))
1162 (defvar c-standard-font-lock-fontify-region-function nil
1163 "Standard value of `font-lock-fontify-region-function'")
1165 (defun c-font-lock-fontify-region (beg end &optional verbose)
1166 ;; Effectively advice around `font-lock-fontify-region' which extends the
1167 ;; region (BEG END), for example, to avoid context fontification chopping
1168 ;; off the start of the context. Do not do anything if it's already been
1169 ;; done (i.e. from an after-change fontification. An example (C++) where
1170 ;; this used to happen is this:
1172 ;; template <typename T>
1175 ;; void myfunc(T* p) {}
1177 ;; Type a space in the first blank line, and the fontification of the next
1178 ;; line was fouled up by context fontification.
1179 (let ((new-beg beg) (new-end end) new-region case-fold-search)
1180 (if c-in-after-change-fontification
1181 (setq c-in-after-change-fontification nil)
1182 (save-restriction
1183 (widen)
1184 (save-excursion
1185 (mapc (lambda (fn)
1186 (setq new-region (funcall fn new-beg new-end))
1187 (setq new-beg (car new-region) new-end (cdr new-region)))
1188 c-before-context-fontification-functions))))
1189 (funcall c-standard-font-lock-fontify-region-function
1190 new-beg new-end verbose)))
1192 (defun c-after-font-lock-init ()
1193 ;; Put on `font-lock-mode-hook'. This function ensures our after-change
1194 ;; function will get executed before the font-lock one. Amongst other
1195 ;; things.
1196 (remove-hook 'after-change-functions 'c-after-change t)
1197 (add-hook 'after-change-functions 'c-after-change nil t)
1198 (setq c-standard-font-lock-fontify-region-function
1199 (default-value 'font-lock-fontify-region-function)))
1201 (defun c-font-lock-init ()
1202 "Set up the font-lock variables for using the font-lock support in CC Mode.
1203 This does not load the font-lock package. Use after
1204 `c-basic-common-init' and after cc-fonts has been loaded.
1205 This function is called from `c-common-init', once per mode initialization."
1207 (set (make-local-variable 'font-lock-defaults)
1208 `(,(if (c-major-mode-is 'awk-mode)
1209 ;; awk-mode currently has only one font lock level.
1210 'awk-font-lock-keywords
1211 (mapcar 'c-mode-symbol
1212 '("font-lock-keywords" "font-lock-keywords-1"
1213 "font-lock-keywords-2" "font-lock-keywords-3")))
1214 nil nil
1215 ,c-identifier-syntax-modifications
1216 c-beginning-of-syntax
1217 (font-lock-mark-block-function
1218 . c-mark-function)))
1220 (make-local-variable 'font-lock-fontify-region-function)
1221 (setq font-lock-fontify-region-function 'c-font-lock-fontify-region)
1223 (if (featurep 'xemacs)
1224 (make-local-hook 'font-lock-mode-hook))
1225 (add-hook 'font-lock-mode-hook 'c-after-font-lock-init nil t))
1227 (defun c-extend-after-change-region (beg end old-len)
1228 "Extend the region to be fontified, if necessary."
1229 ;; Note: the parameters are ignored here. This somewhat indirect
1230 ;; implementation exists because it is minimally different from the
1231 ;; stand-alone CC Mode which, lacking
1232 ;; font-lock-extend-after-change-region-function, is forced to use advice
1233 ;; instead.
1235 ;; Of the seven CC Mode languages, currently (2009-05) only C, C++, Objc
1236 ;; (the languages with #define) and AWK Mode make non-null use of this
1237 ;; function.
1238 (cons c-new-BEG c-new-END))
1241 ;; Support for C
1243 ;;;###autoload
1244 (defvar c-mode-syntax-table nil
1245 "Syntax table used in c-mode buffers.")
1246 (or c-mode-syntax-table
1247 (setq c-mode-syntax-table
1248 (funcall (c-lang-const c-make-mode-syntax-table c))))
1250 (defvar c-mode-abbrev-table nil
1251 "Abbreviation table used in c-mode buffers.")
1252 (c-define-abbrev-table 'c-mode-abbrev-table
1253 '(("else" "else" c-electric-continued-statement 0)
1254 ("while" "while" c-electric-continued-statement 0)))
1256 (defvar c-mode-map ()
1257 "Keymap used in c-mode buffers.")
1258 (if c-mode-map
1260 (setq c-mode-map (c-make-inherited-keymap))
1261 ;; add bindings which are only useful for C
1262 (define-key c-mode-map "\C-c\C-e" 'c-macro-expand)
1265 (easy-menu-define c-c-menu c-mode-map "C Mode Commands"
1266 (cons "C" (c-lang-const c-mode-menu c)))
1268 ;; In XEmacs >= 21.5 modes should add their own entries to
1269 ;; `auto-mode-alist'. The comment form of autoload is used to avoid
1270 ;; doing this on load. That since `add-to-list' prepends the value
1271 ;; which could cause it to clobber user settings. Later emacsen have
1272 ;; an append option, but it's not safe to use.
1274 ;; The extension ".C" is associated with C++ while the lowercase
1275 ;; variant goes with C. On case insensitive file systems, this means
1276 ;; that ".c" files also might open C++ mode if the C++ entry comes
1277 ;; first on `auto-mode-alist'. Thus we try to ensure that ".C" comes
1278 ;; after ".c", and since `add-to-list' adds the entry first we have to
1279 ;; add the ".C" entry first.
1280 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.\\(cc\\|hh\\)\\'" . c++-mode))
1281 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.[ch]\\(pp\\|xx\\|\\+\\+\\)\\'" . c++-mode))
1282 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.\\(CC?\\|HH?\\)\\'" . c++-mode))
1284 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.[ch]\\'" . c-mode))
1286 ;; NB: The following two associate yacc and lex files to C Mode, which
1287 ;; is not really suitable for those formats. Anyway, afaik there's
1288 ;; currently no better mode for them, and besides this is legacy.
1289 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.y\\(acc\\)?\\'" . c-mode))
1290 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.lex\\'" . c-mode))
1292 ;; Preprocessed files generated by C and C++ compilers.
1293 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.i\\'" . c-mode))
1294 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.ii\\'" . c++-mode))
1297 ;;;###autoload
1298 (define-derived-mode c-mode prog-mode "C"
1299 "Major mode for editing K&R and ANSI C code.
1300 To submit a problem report, enter `\\[c-submit-bug-report]' from a
1301 c-mode buffer. This automatically sets up a mail buffer with version
1302 information already added. You just need to add a description of the
1303 problem, including a reproducible test case, and send the message.
1305 To see what version of CC Mode you are running, enter `\\[c-version]'.
1307 The hook `c-mode-common-hook' is run with no args at mode
1308 initialization, then `c-mode-hook'.
1310 Key bindings:
1311 \\{c-mode-map}"
1312 (c-initialize-cc-mode t)
1313 (set-syntax-table c-mode-syntax-table)
1314 (setq local-abbrev-table c-mode-abbrev-table
1315 abbrev-mode t)
1316 (use-local-map c-mode-map)
1317 (c-init-language-vars-for 'c-mode)
1318 (c-make-macro-with-semi-re) ; matches macro names whose expansion ends with ;
1319 (c-common-init 'c-mode)
1320 (easy-menu-add c-c-menu)
1321 (cc-imenu-init cc-imenu-c-generic-expression)
1322 (c-run-mode-hooks 'c-mode-common-hook 'c-mode-hook)
1323 (c-update-modeline))
1326 ;; Support for C++
1328 ;;;###autoload
1329 (defvar c++-mode-syntax-table nil
1330 "Syntax table used in c++-mode buffers.")
1331 (or c++-mode-syntax-table
1332 (setq c++-mode-syntax-table
1333 (funcall (c-lang-const c-make-mode-syntax-table c++))))
1335 (defvar c++-mode-abbrev-table nil
1336 "Abbreviation table used in c++-mode buffers.")
1337 (c-define-abbrev-table 'c++-mode-abbrev-table
1338 '(("else" "else" c-electric-continued-statement 0)
1339 ("while" "while" c-electric-continued-statement 0)
1340 ("catch" "catch" c-electric-continued-statement 0)))
1342 (defvar c++-mode-map ()
1343 "Keymap used in c++-mode buffers.")
1344 (if c++-mode-map
1346 (setq c++-mode-map (c-make-inherited-keymap))
1347 ;; add bindings which are only useful for C++
1348 (define-key c++-mode-map "\C-c\C-e" 'c-macro-expand)
1349 (define-key c++-mode-map "\C-c:" 'c-scope-operator)
1350 (define-key c++-mode-map "<" 'c-electric-lt-gt)
1351 (define-key c++-mode-map ">" 'c-electric-lt-gt))
1353 (easy-menu-define c-c++-menu c++-mode-map "C++ Mode Commands"
1354 (cons "C++" (c-lang-const c-mode-menu c++)))
1356 ;;;###autoload
1357 (define-derived-mode c++-mode prog-mode "C++"
1358 "Major mode for editing C++ code.
1359 To submit a problem report, enter `\\[c-submit-bug-report]' from a
1360 c++-mode buffer. This automatically sets up a mail buffer with
1361 version information already added. You just need to add a description
1362 of the problem, including a reproducible test case, and send the
1363 message.
1365 To see what version of CC Mode you are running, enter `\\[c-version]'.
1367 The hook `c-mode-common-hook' is run with no args at mode
1368 initialization, then `c++-mode-hook'.
1370 Key bindings:
1371 \\{c++-mode-map}"
1372 (c-initialize-cc-mode t)
1373 (set-syntax-table c++-mode-syntax-table)
1374 (setq local-abbrev-table c++-mode-abbrev-table
1375 abbrev-mode t)
1376 (use-local-map c++-mode-map)
1377 (c-init-language-vars-for 'c++-mode)
1378 (c-make-macro-with-semi-re) ; matches macro names whose expansion ends with ;
1379 (c-common-init 'c++-mode)
1380 (easy-menu-add c-c++-menu)
1381 (cc-imenu-init cc-imenu-c++-generic-expression)
1382 (c-run-mode-hooks 'c-mode-common-hook 'c++-mode-hook)
1383 (c-update-modeline))
1386 ;; Support for Objective-C
1388 ;;;###autoload
1389 (defvar objc-mode-syntax-table nil
1390 "Syntax table used in objc-mode buffers.")
1391 (or objc-mode-syntax-table
1392 (setq objc-mode-syntax-table
1393 (funcall (c-lang-const c-make-mode-syntax-table objc))))
1395 (defvar objc-mode-abbrev-table nil
1396 "Abbreviation table used in objc-mode buffers.")
1397 (c-define-abbrev-table 'objc-mode-abbrev-table
1398 '(("else" "else" c-electric-continued-statement 0)
1399 ("while" "while" c-electric-continued-statement 0)))
1401 (defvar objc-mode-map ()
1402 "Keymap used in objc-mode buffers.")
1403 (if objc-mode-map
1405 (setq objc-mode-map (c-make-inherited-keymap))
1406 ;; add bindings which are only useful for Objective-C
1407 (define-key objc-mode-map "\C-c\C-e" 'c-macro-expand))
1409 (easy-menu-define c-objc-menu objc-mode-map "ObjC Mode Commands"
1410 (cons "ObjC" (c-lang-const c-mode-menu objc)))
1412 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.m\\'" . objc-mode))
1414 ;;;###autoload
1415 (define-derived-mode objc-mode prog-mode "ObjC"
1416 "Major mode for editing Objective C code.
1417 To submit a problem report, enter `\\[c-submit-bug-report]' from an
1418 objc-mode buffer. This automatically sets up a mail buffer with
1419 version information already added. You just need to add a description
1420 of the problem, including a reproducible test case, and send the
1421 message.
1423 To see what version of CC Mode you are running, enter `\\[c-version]'.
1425 The hook `c-mode-common-hook' is run with no args at mode
1426 initialization, then `objc-mode-hook'.
1428 Key bindings:
1429 \\{objc-mode-map}"
1430 (c-initialize-cc-mode t)
1431 (set-syntax-table objc-mode-syntax-table)
1432 (setq local-abbrev-table objc-mode-abbrev-table
1433 abbrev-mode t)
1434 (use-local-map objc-mode-map)
1435 (c-init-language-vars-for 'objc-mode)
1436 (c-make-macro-with-semi-re) ; matches macro names whose expansion ends with ;
1437 (c-common-init 'objc-mode)
1438 (easy-menu-add c-objc-menu)
1439 (cc-imenu-init nil 'cc-imenu-objc-function)
1440 (c-run-mode-hooks 'c-mode-common-hook 'objc-mode-hook)
1441 (c-update-modeline))
1444 ;; Support for Java
1446 ;;;###autoload
1447 (defvar java-mode-syntax-table nil
1448 "Syntax table used in java-mode buffers.")
1449 (or java-mode-syntax-table
1450 (setq java-mode-syntax-table
1451 (funcall (c-lang-const c-make-mode-syntax-table java))))
1453 (defvar java-mode-abbrev-table nil
1454 "Abbreviation table used in java-mode buffers.")
1455 (c-define-abbrev-table 'java-mode-abbrev-table
1456 '(("else" "else" c-electric-continued-statement 0)
1457 ("while" "while" c-electric-continued-statement 0)
1458 ("catch" "catch" c-electric-continued-statement 0)
1459 ("finally" "finally" c-electric-continued-statement 0)))
1461 (defvar java-mode-map ()
1462 "Keymap used in java-mode buffers.")
1463 (if java-mode-map
1465 (setq java-mode-map (c-make-inherited-keymap))
1466 ;; add bindings which are only useful for Java
1469 ;; Regexp trying to describe the beginning of a Java top-level
1470 ;; definition. This is not used by CC Mode, nor is it maintained
1471 ;; since it's practically impossible to write a regexp that reliably
1472 ;; matches such a construct. Other tools are necessary.
1473 (defconst c-Java-defun-prompt-regexp
1474 "^[ \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-*")
1476 (easy-menu-define c-java-menu java-mode-map "Java Mode Commands"
1477 (cons "Java" (c-lang-const c-mode-menu java)))
1479 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.java\\'" . java-mode))
1481 ;;;###autoload
1482 (define-derived-mode java-mode prog-mode "Java"
1483 "Major mode for editing Java code.
1484 To submit a problem report, enter `\\[c-submit-bug-report]' from a
1485 java-mode buffer. This automatically sets up a mail buffer with
1486 version information already added. You just need to add a description
1487 of the problem, including a reproducible test case, and send the
1488 message.
1490 To see what version of CC Mode you are running, enter `\\[c-version]'.
1492 The hook `c-mode-common-hook' is run with no args at mode
1493 initialization, then `java-mode-hook'.
1495 Key bindings:
1496 \\{java-mode-map}"
1497 (c-initialize-cc-mode t)
1498 (set-syntax-table java-mode-syntax-table)
1499 (setq local-abbrev-table java-mode-abbrev-table
1500 abbrev-mode t)
1501 (use-local-map java-mode-map)
1502 (c-init-language-vars-for 'java-mode)
1503 (c-common-init 'java-mode)
1504 (easy-menu-add c-java-menu)
1505 (cc-imenu-init cc-imenu-java-generic-expression)
1506 (c-run-mode-hooks 'c-mode-common-hook 'java-mode-hook)
1507 (c-update-modeline))
1510 ;; Support for CORBA's IDL language
1512 ;;;###autoload
1513 (defvar idl-mode-syntax-table nil
1514 "Syntax table used in idl-mode buffers.")
1515 (or idl-mode-syntax-table
1516 (setq idl-mode-syntax-table
1517 (funcall (c-lang-const c-make-mode-syntax-table idl))))
1519 (defvar idl-mode-abbrev-table nil
1520 "Abbreviation table used in idl-mode buffers.")
1521 (c-define-abbrev-table 'idl-mode-abbrev-table nil)
1523 (defvar idl-mode-map ()
1524 "Keymap used in idl-mode buffers.")
1525 (if idl-mode-map
1527 (setq idl-mode-map (c-make-inherited-keymap))
1528 ;; add bindings which are only useful for IDL
1531 (easy-menu-define c-idl-menu idl-mode-map "IDL Mode Commands"
1532 (cons "IDL" (c-lang-const c-mode-menu idl)))
1534 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.idl\\'" . idl-mode))
1536 ;;;###autoload
1537 (define-derived-mode idl-mode prog-mode "IDL"
1538 "Major mode for editing CORBA's IDL, PSDL and CIDL code.
1539 To submit a problem report, enter `\\[c-submit-bug-report]' from an
1540 idl-mode buffer. This automatically sets up a mail buffer with
1541 version information already added. You just need to add a description
1542 of the problem, including a reproducible test case, and send the
1543 message.
1545 To see what version of CC Mode you are running, enter `\\[c-version]'.
1547 The hook `c-mode-common-hook' is run with no args at mode
1548 initialization, then `idl-mode-hook'.
1550 Key bindings:
1551 \\{idl-mode-map}"
1552 (c-initialize-cc-mode t)
1553 (set-syntax-table idl-mode-syntax-table)
1554 (setq local-abbrev-table idl-mode-abbrev-table)
1555 (use-local-map idl-mode-map)
1556 (c-init-language-vars-for 'idl-mode)
1557 (c-common-init 'idl-mode)
1558 (easy-menu-add c-idl-menu)
1559 ;;(cc-imenu-init cc-imenu-idl-generic-expression) ;TODO
1560 (c-run-mode-hooks 'c-mode-common-hook 'idl-mode-hook)
1561 (c-update-modeline))
1564 ;; Support for Pike
1566 ;;;###autoload
1567 (defvar pike-mode-syntax-table nil
1568 "Syntax table used in pike-mode buffers.")
1569 (or pike-mode-syntax-table
1570 (setq pike-mode-syntax-table
1571 (funcall (c-lang-const c-make-mode-syntax-table pike))))
1573 (defvar pike-mode-abbrev-table nil
1574 "Abbreviation table used in pike-mode buffers.")
1575 (c-define-abbrev-table 'pike-mode-abbrev-table
1576 '(("else" "else" c-electric-continued-statement 0)
1577 ("while" "while" c-electric-continued-statement 0)))
1579 (defvar pike-mode-map ()
1580 "Keymap used in pike-mode buffers.")
1581 (if pike-mode-map
1583 (setq pike-mode-map (c-make-inherited-keymap))
1584 ;; additional bindings
1585 (define-key pike-mode-map "\C-c\C-e" 'c-macro-expand))
1587 (easy-menu-define c-pike-menu pike-mode-map "Pike Mode Commands"
1588 (cons "Pike" (c-lang-const c-mode-menu pike)))
1590 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.\\(u?lpc\\|pike\\|pmod\\(\\.in\\)?\\)\\'" . pike-mode))
1591 ;;;###autoload (add-to-list 'interpreter-mode-alist '("pike" . pike-mode))
1593 ;;;###autoload
1594 (define-derived-mode pike-mode prog-mode "Pike"
1595 "Major mode for editing Pike code.
1596 To submit a problem report, enter `\\[c-submit-bug-report]' from a
1597 pike-mode buffer. This automatically sets up a mail buffer with
1598 version information already added. You just need to add a description
1599 of the problem, including a reproducible test case, and send the
1600 message.
1602 To see what version of CC Mode you are running, enter `\\[c-version]'.
1604 The hook `c-mode-common-hook' is run with no args at mode
1605 initialization, then `pike-mode-hook'.
1607 Key bindings:
1608 \\{pike-mode-map}"
1609 (c-initialize-cc-mode t)
1610 (set-syntax-table pike-mode-syntax-table)
1611 (setq local-abbrev-table pike-mode-abbrev-table
1612 abbrev-mode t)
1613 (use-local-map pike-mode-map)
1614 (c-init-language-vars-for 'pike-mode)
1615 (c-common-init 'pike-mode)
1616 (easy-menu-add c-pike-menu)
1617 ;;(cc-imenu-init cc-imenu-pike-generic-expression) ;TODO
1618 (c-run-mode-hooks 'c-mode-common-hook 'pike-mode-hook)
1619 (c-update-modeline))
1622 ;; Support for AWK
1624 ;;;###autoload (add-to-list 'auto-mode-alist '("\\.awk\\'" . awk-mode))
1625 ;;;###autoload (add-to-list 'interpreter-mode-alist '("awk" . awk-mode))
1626 ;;;###autoload (add-to-list 'interpreter-mode-alist '("mawk" . awk-mode))
1627 ;;;###autoload (add-to-list 'interpreter-mode-alist '("nawk" . awk-mode))
1628 ;;;###autoload (add-to-list 'interpreter-mode-alist '("gawk" . awk-mode))
1630 ;;; Autoload directives must be on the top level, so we construct an
1631 ;;; autoload form instead.
1632 ;;;###autoload (autoload 'awk-mode "cc-mode" "Major mode for editing AWK code." t)
1634 (defvar awk-mode-abbrev-table nil
1635 "Abbreviation table used in awk-mode buffers.")
1636 (c-define-abbrev-table 'awk-mode-abbrev-table
1637 '(("else" "else" c-electric-continued-statement 0)
1638 ("while" "while" c-electric-continued-statement 0)))
1640 (defvar awk-mode-map ()
1641 "Keymap used in awk-mode buffers.")
1642 (if awk-mode-map
1644 (setq awk-mode-map (c-make-inherited-keymap))
1645 ;; add bindings which are only useful for awk.
1646 (define-key awk-mode-map "#" 'self-insert-command)
1647 (define-key awk-mode-map "/" 'self-insert-command)
1648 (define-key awk-mode-map "*" 'self-insert-command)
1649 (define-key awk-mode-map "\C-c\C-n" 'undefined) ; #if doesn't exist in awk.
1650 (define-key awk-mode-map "\C-c\C-p" 'undefined)
1651 (define-key awk-mode-map "\C-c\C-u" 'undefined)
1652 (define-key awk-mode-map "\M-a" 'c-beginning-of-statement) ; 2003/10/7
1653 (define-key awk-mode-map "\M-e" 'c-end-of-statement) ; 2003/10/7
1654 (define-key awk-mode-map "\C-\M-a" 'c-awk-beginning-of-defun)
1655 (define-key awk-mode-map "\C-\M-e" 'c-awk-end-of-defun))
1657 (easy-menu-define c-awk-menu awk-mode-map "AWK Mode Commands"
1658 (cons "AWK" (c-lang-const c-mode-menu awk)))
1660 ;; (require 'cc-awk) brings these in.
1661 (defvar awk-mode-syntax-table)
1662 (declare-function c-awk-unstick-NL-prop "cc-awk" ())
1664 ;;;###autoload
1665 (define-derived-mode awk-mode prog-mode "AWK"
1666 "Major mode for editing AWK code.
1667 To submit a problem report, enter `\\[c-submit-bug-report]' from an
1668 awk-mode buffer. This automatically sets up a mail buffer with version
1669 information already added. You just need to add a description of the
1670 problem, including a reproducible test case, and send the message.
1672 To see what version of CC Mode you are running, enter `\\[c-version]'.
1674 The hook `c-mode-common-hook' is run with no args at mode
1675 initialization, then `awk-mode-hook'.
1677 Key bindings:
1678 \\{awk-mode-map}"
1679 ;; We need the next line to stop the macro defining
1680 ;; `awk-mode-syntax-table'. This would mask the real table which is
1681 ;; declared in cc-awk.el and hasn't yet been loaded.
1682 :syntax-table nil
1683 (require 'cc-awk) ; Added 2003/6/10.
1684 (c-initialize-cc-mode t)
1685 (set-syntax-table awk-mode-syntax-table)
1686 (setq local-abbrev-table awk-mode-abbrev-table
1687 abbrev-mode t)
1688 (use-local-map awk-mode-map)
1689 (c-init-language-vars-for 'awk-mode)
1690 (c-common-init 'awk-mode)
1691 (c-awk-unstick-NL-prop)
1693 (c-run-mode-hooks 'c-mode-common-hook 'awk-mode-hook)
1694 (c-update-modeline))
1697 ;; bug reporting
1699 (defconst c-mode-help-address
1700 "bug-cc-mode@gnu.org"
1701 "Address(es) for CC Mode bug reports.")
1703 (defun c-version ()
1704 "Echo the current version of CC Mode in the minibuffer."
1705 (interactive)
1706 (message "Using CC Mode version %s" c-version)
1707 (c-keep-region-active))
1709 (define-obsolete-variable-alias 'c-prepare-bug-report-hooks
1710 'c-prepare-bug-report-hook "24.3")
1711 (defvar c-prepare-bug-report-hook nil)
1713 ;; Dynamic variables used by reporter.
1714 (defvar reporter-prompt-for-summary-p)
1715 (defvar reporter-dont-compact-list)
1717 (defun c-submit-bug-report ()
1718 "Submit via mail a bug report on CC Mode."
1719 (interactive)
1720 (require 'reporter)
1721 ;; load in reporter
1722 (let ((reporter-prompt-for-summary-p t)
1723 (reporter-dont-compact-list '(c-offsets-alist))
1724 (style c-indentation-style)
1725 (c-features c-emacs-features))
1726 (and
1727 (if (y-or-n-p "Do you want to submit a report on CC Mode? ")
1728 t (message "") nil)
1729 (reporter-submit-bug-report
1730 c-mode-help-address
1731 (concat "CC Mode " c-version " (" mode-name ")")
1732 (let ((vars (append
1733 c-style-variables
1734 '(c-buffer-is-cc-mode
1735 c-tab-always-indent
1736 c-syntactic-indentation
1737 c-syntactic-indentation-in-macros
1738 c-ignore-auto-fill
1739 c-auto-align-backslashes
1740 c-backspace-function
1741 c-delete-function
1742 c-electric-pound-behavior
1743 c-default-style
1744 c-enable-xemacs-performance-kludge-p
1745 c-old-style-variable-behavior
1746 defun-prompt-regexp
1747 tab-width
1748 comment-column
1749 parse-sexp-ignore-comments
1750 parse-sexp-lookup-properties
1751 lookup-syntax-properties
1752 ;; A brain-damaged XEmacs only variable that, if
1753 ;; set to nil can cause all kinds of chaos.
1754 signal-error-on-buffer-boundary
1755 ;; Variables that affect line breaking and comments.
1756 auto-fill-mode
1757 auto-fill-function
1758 filladapt-mode
1759 comment-multi-line
1760 comment-start-skip
1761 fill-prefix
1762 fill-column
1763 paragraph-start
1764 adaptive-fill-mode
1765 adaptive-fill-regexp)
1766 nil)))
1767 (mapc (lambda (var) (unless (boundp var)
1768 (setq vars (delq var vars))))
1769 '(signal-error-on-buffer-boundary
1770 filladapt-mode
1771 defun-prompt-regexp
1772 font-lock-mode
1773 font-lock-maximum-decoration
1774 parse-sexp-lookup-properties
1775 lookup-syntax-properties))
1776 vars)
1777 (lambda ()
1778 (run-hooks 'c-prepare-bug-report-hook)
1779 (insert (format "Buffer Style: %s\nc-emacs-features: %s\n"
1780 style c-features)))))))
1783 (cc-provide 'cc-mode)
1785 ;;; cc-mode.el ends here