1 ;;; cc-fonts.el --- font lock support for CC Mode
3 ;; Copyright (C) 2002-2016 Free Software Foundation, Inc.
5 ;; Authors: 2003- Alan Mackenzie
6 ;; 2002- Martin Stjernholm
7 ;; Maintainer: bug-cc-mode@gnu.org
8 ;; Created: 07-Jan-2002
9 ;; Keywords: c languages
12 ;; This file is part of GNU Emacs.
14 ;; GNU Emacs is free software: you can redistribute it and/or modify
15 ;; it under the terms of the GNU General Public License as published by
16 ;; the Free Software Foundation, either version 3 of the License, or
17 ;; (at your option) any later version.
19 ;; GNU Emacs is distributed in the hope that it will be useful,
20 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 ;; GNU General Public License for more details.
24 ;; You should have received a copy of the GNU General Public License
25 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
29 ;; Some comments on the use of faces:
31 ;; o `c-label-face-name' is either `font-lock-constant-face' (in
32 ;; Emacs), or `font-lock-reference-face'.
34 ;; o `c-constant-face-name', `c-reference-face-name' and
35 ;; `c-doc-markup-face-name' are essentially set up like
36 ;; `c-label-face-name'.
38 ;; o `c-preprocessor-face-name' is `font-lock-preprocessor-face' in
39 ;; XEmacs and - in lack of a closer equivalent -
40 ;; `font-lock-builtin-face' or `font-lock-reference-face' in Emacs.
42 ;; o `c-doc-face-name' is `font-lock-doc-string-face' in XEmacs,
43 ;; `font-lock-doc-face' in Emacs 21 and later, or
44 ;; `font-lock-comment-face' in older Emacs (that since source
45 ;; documentation are actually comments in these languages, as opposed
48 ;; TBD: We should probably provide real faces for the above uses and
49 ;; instead initialize them from the standard faces.
53 ;; The faces that already have been put onto the text is tested in
54 ;; various places to direct further fontifications. For this to work,
55 ;; the following assumptions regarding the faces must hold (apart from
56 ;; the dependencies on the font locking order):
58 ;; o `font-lock-comment-face' and the face in `c-doc-face-name' is
59 ;; not used in anything but comments.
60 ;; o If any face (e.g. `c-doc-markup-face-name') but those above is
61 ;; used in comments, it doesn't replace them.
62 ;; o `font-lock-string-face' is not used in anything but string
63 ;; literals (single or double quoted).
64 ;; o `font-lock-keyword-face' and the face in `c-label-face-name' are
65 ;; never overlaid with other faces.
69 (if (and (boundp 'byte-compile-dest-file)
70 (stringp byte-compile-dest-file))
71 (cons (file-name-directory byte-compile-dest-file) load-path)
73 (load "cc-bytecomp" nil t)))
76 (cc-require-when-compile 'cc-langs)
78 (cc-require 'cc-engine)
79 (cc-require-when-compile 'cc-awk) ; Change from cc-require, 2003/6/18 to
80 ;; prevent cc-awk being loaded when it's not needed. There is now a (require
81 ;; 'cc-awk) in (defun awk-mode ..).
83 ;; Avoid repeated loading through the eval-after-load directive in
87 (cc-external-require 'font-lock)
89 (cc-bytecomp-defvar parse-sexp-lookup-properties) ; Emacs only.
91 ;; Need to declare these local symbols during compilation since
92 ;; they're referenced from lambdas in `byte-compile' calls that are
93 ;; executed at compile time. They don't need to have the proper
94 ;; definitions, though, since the generated functions aren't called
95 ;; during compilation.
96 (cc-bytecomp-defvar c-preprocessor-face-name)
97 (cc-bytecomp-defvar c-reference-face-name)
98 (cc-bytecomp-defun c-fontify-recorded-types-and-refs)
99 (cc-bytecomp-defun c-font-lock-declarators)
100 (cc-bytecomp-defun c-font-lock-objc-method)
101 (cc-bytecomp-defun c-font-lock-invalid-string)
104 ;; Note that font-lock in XEmacs doesn't expand face names as
105 ;; variables, so we have to use the (eval . FORM) in the font lock
106 ;; matchers wherever we use these alias variables.
108 (defconst c-preprocessor-face-name
109 (cond ((c-face-name-p 'font-lock-preprocessor-face)
110 ;; XEmacs has a font-lock-preprocessor-face.
111 'font-lock-preprocessor-face)
112 ((c-face-name-p 'font-lock-builtin-face)
113 ;; In Emacs font-lock-builtin-face has traditionally been
114 ;; used for preprocessor directives.
115 'font-lock-builtin-face)
117 'font-lock-reference-face)))
119 (cc-bytecomp-defvar font-lock-constant-face)
121 (defconst c-label-face-name
122 (cond ((c-face-name-p 'font-lock-label-face)
123 ;; If it happens to occur in the future. (Well, the more
124 ;; pragmatic reason is to get unique faces for the test
126 'font-lock-label-face)
127 ((and (c-face-name-p 'font-lock-constant-face)
128 (eq font-lock-constant-face 'font-lock-constant-face))
129 ;; Test both if font-lock-constant-face exists and that it's
130 ;; not an alias for something else. This is important since
131 ;; we compare already set faces in various places.
132 'font-lock-constant-face)
134 'font-lock-reference-face)))
136 (defconst c-constant-face-name
137 (if (and (c-face-name-p 'font-lock-constant-face)
138 (eq font-lock-constant-face 'font-lock-constant-face))
139 ;; This doesn't exist in some earlier versions of XEmacs 21.
140 'font-lock-constant-face
143 (defconst c-reference-face-name
145 (if (and (c-face-name-p 'font-lock-reference-face)
146 (eq font-lock-reference-face 'font-lock-reference-face))
147 ;; This is considered obsolete in Emacs, but it still maps well
148 ;; to this use. (Another reason to do this is to get unique
149 ;; faces for the test suite.)
150 'font-lock-reference-face
153 ;; This should not mapped to a face that also is used to fontify things
154 ;; that aren't comments or string literals.
155 (defconst c-doc-face-name
156 (cond ((c-face-name-p 'font-lock-doc-string-face)
158 'font-lock-doc-string-face)
159 ((c-face-name-p 'font-lock-doc-face)
160 ;; Emacs 21 and later.
163 'font-lock-comment-face)))
165 (defconst c-doc-markup-face-name
166 (if (c-face-name-p 'font-lock-doc-markup-face)
167 ;; If it happens to occur in the future. (Well, the more
168 ;; pragmatic reason is to get unique faces for the test
170 'font-lock-doc-markup-face
173 (defconst c-negation-char-face-name
174 (if (c-face-name-p 'font-lock-negation-char-face)
175 ;; Emacs 22 has a special face for negation chars.
176 'font-lock-negation-char-face))
178 (cc-bytecomp-defun face-inverse-video-p) ; Only in Emacs.
180 (defun c-make-inverse-face (oldface newface)
181 ;; Emacs and XEmacs have completely different face manipulation
183 (copy-face oldface newface)
184 (cond ((fboundp 'face-inverse-video-p)
185 ;; Emacs. This only looks at the inverse flag in the current
186 ;; frame. Other display configurations might be different,
187 ;; but it can only show if the same Emacs has frames on
188 ;; e.g. a color and a monochrome display simultaneously.
189 (unless (face-inverse-video-p oldface)
190 (invert-face newface)))
191 ((fboundp 'face-property-instance)
192 ;; XEmacs. Same pitfall here.
193 (unless (face-property-instance oldface 'reverse)
194 (invert-face newface)))))
196 (defvar c-annotation-face 'c-annotation-face)
198 (defface c-annotation-face
199 '((default :inherit font-lock-constant-face))
200 "Face for highlighting annotations in Java mode and similar modes."
205 ;; We need the following definitions during compilation since they're
206 ;; used when the `c-lang-defconst' initializers are evaluated. Define
207 ;; them at runtime too for the sake of derived modes.
209 ;; This indicates the "font locking context", and is set just before
210 ;; fontification is done. If non-nil, it says, e.g., point starts
211 ;; from within a #if preprocessor construct.
212 (defvar c-font-lock-context nil)
213 (make-variable-buffer-local 'c-font-lock-context)
215 (defmacro c-put-font-lock-face (from to face)
216 ;; Put a face on a region (overriding any existing face) in the way
217 ;; font-lock would do it. In XEmacs that means putting an
218 ;; additional font-lock property, or else the font-lock package
219 ;; won't recognize it as fontified and might override it
222 ;; This function does a hidden buffer change.
223 (if (fboundp 'font-lock-set-face)
224 ;; Note: This function has no docstring in XEmacs so it might be
225 ;; considered internal.
226 `(font-lock-set-face ,from ,to ,face)
227 `(put-text-property ,from ,to 'face ,face)))
229 (defmacro c-remove-font-lock-face (from to)
230 ;; This is the inverse of `c-put-font-lock-face'.
232 ;; This function does a hidden buffer change.
233 (if (fboundp 'font-lock-remove-face)
234 `(font-lock-remove-face ,from ,to)
235 `(remove-text-properties ,from ,to '(face nil))))
237 (defmacro c-put-font-lock-string-face (from to)
238 ;; Put `font-lock-string-face' on a string. The surrounding
239 ;; quotes are included in Emacs but not in XEmacs. The passed
240 ;; region should include them.
242 ;; This function does a hidden buffer change.
243 (if (featurep 'xemacs)
244 `(c-put-font-lock-face (1+ ,from) (1- ,to) 'font-lock-string-face)
245 `(c-put-font-lock-face ,from ,to 'font-lock-string-face)))
247 (defmacro c-fontify-types-and-refs (varlist &rest body)
248 ;; Like `let', but additionally activates `c-record-type-identifiers'
249 ;; and `c-record-ref-identifiers', and fontifies the recorded ranges
250 ;; accordingly on exit.
252 ;; This function does hidden buffer changes.
253 `(let ((c-record-type-identifiers t)
254 c-record-ref-identifiers
256 (prog1 (progn ,@body)
257 (c-fontify-recorded-types-and-refs))))
258 (put 'c-fontify-types-and-refs 'lisp-indent-function 1)
260 (defun c-skip-comments-and-strings (limit)
261 ;; If the point is within a region fontified as a comment or
262 ;; string literal skip to the end of it or to LIMIT, whichever
263 ;; comes first, and return t. Otherwise return nil. The match
264 ;; data is not clobbered.
266 ;; This function might do hidden buffer changes.
267 (when (c-got-face-at (point) c-literal-faces)
269 (goto-char (c-next-single-property-change
270 (point) 'face nil limit))
271 (and (< (point) limit)
272 (c-got-face-at (point) c-literal-faces))))
275 (defun c-make-syntactic-matcher (regexp)
276 ;; Returns a byte compiled function suitable for use in place of a
277 ;; regexp string in a `font-lock-keywords' matcher, except that
278 ;; only matches outside comments and string literals count.
280 ;; This function does not do any hidden buffer changes, but the
281 ;; generated functions will. (They are however used in places
282 ;; covered by the font-lock context.)
286 (while (and (setq res (re-search-forward ,regexp limit t))
288 (goto-char (match-beginning 0))
289 (or (c-skip-comments-and-strings limit)
291 (goto-char (match-end 0))
295 (defun c-make-font-lock-search-form (regexp highlights)
296 ;; Return a lisp form which will fontify every occurrence of REGEXP
297 ;; (a regular expression, NOT a function) between POINT and `limit'
298 ;; with HIGHLIGHTS, a list of highlighters as specified on page
299 ;; "Search-based Fontification" in the elisp manual.
300 `(while (re-search-forward ,regexp limit t)
302 (goto-char (match-beginning 0))
303 (c-skip-comments-and-strings limit))
304 (goto-char (match-end 0))
307 (if (integerp (car highlight))
308 ;; e.g. highlight is (1 font-lock-type-face t)
310 (unless (eq (nth 2 highlight) t)
312 "The override flag must currently be t in %s"
314 (when (nth 3 highlight)
316 "The laxmatch flag may currently not be set in %s"
319 (c-put-font-lock-face
320 (match-beginning ,(car highlight))
321 (match-end ,(car highlight))
322 ,(elt highlight 1))))
323 ;; highlight is an "ANCHORED HIGHLIGHTER" of the form
324 ;; (ANCHORED-MATCHER PRE-FORM POST-FORM SUBEXP-HIGHLIGHTERS...)
325 (when (nth 3 highlight)
326 (error "Match highlights currently not supported in %s"
330 (save-match-data ,(car highlight))
331 ,(nth 2 highlight))))
334 (defun c-make-font-lock-search-function (regexp &rest highlights)
335 ;; This function makes a byte compiled function that works much like
336 ;; a matcher element in `font-lock-keywords'. It cuts out a little
337 ;; bit of the overhead compared to a real matcher. The main reason
338 ;; is however to pass the real search limit to the anchored
339 ;; matcher(s), since most (if not all) font-lock implementations
340 ;; arbitrarily limit anchored matchers to the same line, and also
341 ;; to insulate against various other irritating differences between
342 ;; the different (X)Emacs font-lock packages.
344 ;; REGEXP is the matcher, which must be a regexp. Only matches
345 ;; where the beginning is outside any comment or string literal are
348 ;; HIGHLIGHTS is a list of highlight specs, just like in
349 ;; `font-lock-keywords', with these limitations: The face is always
350 ;; overridden (no big disadvantage, since hits in comments etc are
351 ;; filtered anyway), there is no "laxmatch", and an anchored matcher
352 ;; is always a form which must do all the fontification directly.
353 ;; `limit' is a variable bound to the real limit in the context of
354 ;; the anchored matcher forms.
356 ;; This function does not do any hidden buffer changes, but the
357 ;; generated functions will. (They are however used in places
358 ;; covered by the font-lock context.)
360 ;; Note: Replace `byte-compile' with `eval' to debug the generated
361 ;; lambda more easily.
364 (let ( ;; The font-lock package in Emacs is known to clobber
365 ;; `parse-sexp-lookup-properties' (when it exists).
366 (parse-sexp-lookup-properties
367 (cc-eval-when-compile
368 (boundp 'parse-sexp-lookup-properties))))
369 ,(c-make-font-lock-search-form regexp highlights))
372 (defun c-make-font-lock-BO-decl-search-function (regexp &rest highlights)
373 ;; This function makes a byte compiled function that first moves back
374 ;; to the beginning of the current declaration (if any), then searches
375 ;; forward for matcher elements (as in `font-lock-keywords') and
378 ;; The motivation for moving back to the declaration start is to
379 ;; establish a context for the current text when, e.g., a character
380 ;; is typed on a C++ inheritance continuation line, or a jit-lock
381 ;; chunk starts there.
383 ;; The new function works much like a matcher element in
384 ;; `font-lock-keywords'. It cuts out a little bit of the overhead
385 ;; compared to a real matcher. The main reason is however to pass the
386 ;; real search limit to the anchored matcher(s), since most (if not
387 ;; all) font-lock implementations arbitrarily limit anchored matchers
388 ;; to the same line, and also to insulate against various other
389 ;; irritating differences between the different (X)Emacs font-lock
392 ;; REGEXP is the matcher, which must be a regexp. Only matches
393 ;; where the beginning is outside any comment or string literal are
396 ;; HIGHLIGHTS is a list of highlight specs, just like in
397 ;; `font-lock-keywords', with these limitations: The face is always
398 ;; overridden (no big disadvantage, since hits in comments etc are
399 ;; filtered anyway), there is no "laxmatch", and an anchored matcher
400 ;; is always a form which must do all the fontification directly.
401 ;; `limit' is a variable bound to the real limit in the context of
402 ;; the anchored matcher forms.
404 ;; This function does not do any hidden buffer changes, but the
405 ;; generated functions will. (They are however used in places
406 ;; covered by the font-lock context.)
408 ;; Note: Replace `byte-compile' with `eval' to debug the generated
409 ;; lambda more easily.
412 (let ( ;; The font-lock package in Emacs is known to clobber
413 ;; `parse-sexp-lookup-properties' (when it exists).
414 (parse-sexp-lookup-properties
415 (cc-eval-when-compile
416 (boundp 'parse-sexp-lookup-properties)))
418 (c-determine-limit 1000)))
420 (let ((here (point)))
421 (if (eq (car (c-beginning-of-decl-1 BOD-limit)) 'same)
424 ,(c-make-font-lock-search-form regexp highlights))
427 (defun c-make-font-lock-context-search-function (normal &rest state-stanzas)
428 ;; This function makes a byte compiled function that works much like
429 ;; a matcher element in `font-lock-keywords', with the following
430 ;; enhancement: the generated function will test for particular "font
431 ;; lock contexts" at the start of the region, i.e. is this point in
432 ;; the middle of some particular construct? if so the generated
433 ;; function will first fontify the tail of the construct, before
434 ;; going into the main loop and fontify full constructs up to limit.
436 ;; The generated function takes one parameter called `limit', and
437 ;; will fontify the region between POINT and LIMIT.
439 ;; NORMAL is a list of the form (REGEXP HIGHLIGHTS .....), and is
440 ;; used to fontify the "regular" bit of the region.
441 ;; STATE-STANZAS is list of elements of the form (STATE LIM REGEXP
442 ;; HIGHLIGHTS), each element coding one possible font lock context.
444 ;; o - REGEXP is a font-lock regular expression (NOT a function),
445 ;; o - HIGHLIGHTS is a list of zero or more highlighters as defined
446 ;; on page "Search-based Fontification" in the elisp manual. As
447 ;; yet (2009-06), they must have OVERRIDE set, and may not have
450 ;; o - STATE is the "font lock context" (e.g. in-cpp-expr) and is
452 ;; o - LIM is a lisp form whose evaluation will yield the limit
453 ;; position in the buffer for fontification by this stanza.
455 ;; This function does not do any hidden buffer changes, but the
456 ;; generated functions will. (They are however used in places
457 ;; covered by the font-lock context.)
459 ;; Note: Replace `byte-compile' with `eval' to debug the generated
460 ;; lambda more easily.
463 (let ( ;; The font-lock package in Emacs is known to clobber
464 ;; `parse-sexp-lookup-properties' (when it exists).
465 (parse-sexp-lookup-properties
466 (cc-eval-when-compile
467 (boundp 'parse-sexp-lookup-properties))))
470 (let ((state (car stanza))
472 (regexp (nth 2 stanza))
473 (highlights (cdr (cddr stanza))))
474 `(if (eq c-font-lock-context ',state)
476 ,(c-make-font-lock-search-form
477 regexp highlights)))))
479 ,(c-make-font-lock-search-form (car normal) (cdr normal))
482 ; (eval-after-load "edebug" ; 2006-07-09: def-edebug-spec is now in subr.el.
484 (def-edebug-spec c-fontify-types-and-refs let*)
485 (def-edebug-spec c-make-syntactic-matcher t)
486 ;; If there are literal quoted or backquoted highlight specs in
487 ;; the call to `c-make-font-lock-search-function' then let's
488 ;; instrument the forms in them.
489 (def-edebug-spec c-make-font-lock-search-function
490 (form &rest &or ("quote" (&rest form)) ("`" (&rest form)) form)));))
492 (defun c-fontify-recorded-types-and-refs ()
493 ;; Convert the ranges recorded on `c-record-type-identifiers' and
494 ;; `c-record-ref-identifiers' to fontification.
496 ;; This function does hidden buffer changes.
498 (while (consp c-record-type-identifiers)
499 (setq elem (car c-record-type-identifiers)
500 c-record-type-identifiers (cdr c-record-type-identifiers))
501 (c-put-font-lock-face (car elem) (cdr elem)
502 'font-lock-type-face))
503 (while c-record-ref-identifiers
504 (setq elem (car c-record-ref-identifiers)
505 c-record-ref-identifiers (cdr c-record-ref-identifiers))
506 ;; Note that the reference face is a variable that is
507 ;; dereferenced, since it's an alias in Emacs.
508 (c-put-font-lock-face (car elem) (cdr elem)
509 c-reference-face-name))))
511 (c-lang-defconst c-cpp-matchers
512 "Font lock matchers for preprocessor directives and purely lexical
513 stuff. Used on level 1 and higher."
515 ;; Note: `c-font-lock-declarations' assumes that no matcher here
516 ;; sets `font-lock-type-face' in languages where
517 ;; `c-recognize-<>-arglists' is set.
519 t `(,@(when (c-lang-const c-opt-cpp-prefix)
520 (let* ((noncontinued-line-end "\\(\\=\\|\\(\\=\\|[^\\]\\)[\n\r]\\)")
521 (ncle-depth (regexp-opt-depth noncontinued-line-end))
522 (sws-depth (c-lang-const c-syntactic-ws-depth))
523 (nsws-depth (c-lang-const c-nonempty-syntactic-ws-depth)))
525 `(;; The stuff after #error and #warning is a message, so
526 ;; fontify it as a string.
527 ,@(when (c-lang-const c-cpp-message-directives)
528 (let* ((re (c-make-keywords-re 'appendable ; nil
529 (c-lang-const c-cpp-message-directives)))
530 (re-depth (regexp-opt-depth re)))
531 `((,(concat noncontinued-line-end
532 (c-lang-const c-opt-cpp-prefix)
535 ,(+ ncle-depth re-depth 1) font-lock-string-face t))))
537 ;; Fontify filenames in #include <...> as strings.
538 ,@(when (c-lang-const c-cpp-include-directives)
539 (let* ((re (c-make-keywords-re nil
540 (c-lang-const c-cpp-include-directives)))
541 (re-depth (regexp-opt-depth re)))
542 ;; We used to use a font-lock "anchored matcher" here for
543 ;; the paren syntax. This failed when the ">" was at EOL,
544 ;; since `font-lock-fontify-anchored-keywords' terminated
545 ;; its loop at EOL without executing our lambda form at
547 `((,(c-make-font-lock-search-function
548 (concat noncontinued-line-end
549 (c-lang-const c-opt-cpp-prefix)
551 (c-lang-const c-syntactic-ws)
552 "\\(<[^>\n\r]*>?\\)")
553 `(,(+ ncle-depth re-depth sws-depth 1)
554 font-lock-string-face t)
555 `((let ((beg (match-beginning
556 ,(+ ncle-depth re-depth sws-depth 1)))
557 (end (1- (match-end ,(+ ncle-depth re-depth
559 (if (eq (char-after end) ?>)
561 (c-mark-<-as-paren beg)
562 (c-mark->-as-paren end))
563 (c-unmark-<->-as-paren beg)))
567 ,@(when (c-lang-const c-opt-cpp-macro-define)
568 `((,(c-make-font-lock-search-function
570 noncontinued-line-end
571 (c-lang-const c-opt-cpp-prefix)
572 (c-lang-const c-opt-cpp-macro-define)
573 (c-lang-const c-nonempty-syntactic-ws)
574 "\\(" (c-lang-const ; 1 + ncle + nsws
576 (concat "\\(" ; 2 + ncle + nsws + c-sym-key
577 ;; Macro with arguments - a "function".
578 "\\((\\)" ; 3 + ncle + nsws + c-sym-key
580 ;; Macro without arguments - a "variable".
583 `((if (match-beginning
584 ,(+ 3 ncle-depth nsws-depth
585 (c-lang-const c-symbol-key-depth)))
587 ;; "Function". Fontify the name and the arguments.
589 (c-put-font-lock-face
590 (match-beginning ,(+ 1 ncle-depth nsws-depth))
591 (match-end ,(+ 1 ncle-depth nsws-depth))
592 'font-lock-function-name-face)
595 ,(+ 3 ncle-depth nsws-depth
596 (c-lang-const c-symbol-key-depth))))
598 (narrow-to-region (point-min) limit)
601 (c-forward-syntactic-ws)
602 (looking-at c-symbol-key))
604 (c-put-font-lock-face
605 (match-beginning 0) (match-end 0)
606 'font-lock-variable-name-face)
607 (goto-char (match-end 0))
608 (c-forward-syntactic-ws)
609 (eq (char-after) ?,)))
613 (c-put-font-lock-face
614 (match-beginning ,(+ 1 ncle-depth nsws-depth))
615 (match-end ,(+ 1 ncle-depth nsws-depth))
616 'font-lock-variable-name-face)))))))
618 ;; Fontify cpp function names in preprocessor
619 ;; expressions in #if and #elif.
620 ,@(when (and (c-lang-const c-cpp-expr-directives)
621 (c-lang-const c-cpp-expr-functions))
622 (let ((ced-re (c-make-keywords-re t
623 (c-lang-const c-cpp-expr-directives)))
624 (cef-re (c-make-keywords-re t
625 (c-lang-const c-cpp-expr-functions))))
627 `((,(c-make-font-lock-context-search-function
628 `(,(concat noncontinued-line-end
629 (c-lang-const c-opt-cpp-prefix)
630 ced-re ; 1 + ncle-depth
631 ;; Match the whole logical line to look
632 ;; for the functions in.
633 "\\(\\\\\\(.\\|[\n\r]\\)\\|[^\n\r]\\)*")
634 ((let ((limit (match-end 0)))
635 (while (re-search-forward ,cef-re limit 'move)
636 (c-put-font-lock-face (match-beginning 1)
638 c-preprocessor-face-name)))
639 (goto-char (match-end ,(1+ ncle-depth)))))
641 (save-excursion (c-end-of-macro) (point))
643 (1 c-preprocessor-face-name t)))))))
645 ;; Fontify the directive names.
646 (,(c-make-font-lock-search-function
647 (concat noncontinued-line-end
649 (c-lang-const c-opt-cpp-prefix)
650 "[" (c-lang-const c-symbol-chars) "]+"
652 `(,(1+ ncle-depth) c-preprocessor-face-name t)))
654 (eval . (list ,(c-make-syntactic-matcher
655 (concat noncontinued-line-end
656 (c-lang-const c-opt-cpp-prefix)
659 c-negation-char-face-name
663 ,@(when (c-major-mode-is 'pike-mode)
664 ;; Recognize hashbangs in Pike.
665 `((eval . (list "\\`#![^\n\r]*"
666 0 c-preprocessor-face-name))))
668 ;; Make hard spaces visible through an inverted `font-lock-warning-face'.
672 (unless (c-face-name-p 'c-nonbreakable-space-face)
673 (c-make-inverse-face 'font-lock-warning-face
674 'c-nonbreakable-space-face))
675 ''c-nonbreakable-space-face)))
678 (defun c-font-lock-invalid-string ()
679 ;; Assuming the point is after the opening character of a string,
680 ;; fontify that char with `font-lock-warning-face' if the string
681 ;; decidedly isn't terminated properly.
683 ;; This function does hidden buffer changes.
684 (let ((start (1- (point))))
686 (and (eq (elt (parse-partial-sexp start (c-point 'eol)) 8) start)
687 (if (if (eval-when-compile (integerp ?c))
689 (integerp c-multiline-string-start-char)
691 (characterp c-multiline-string-start-char))
692 ;; There's no multiline string start char before the
693 ;; string, so newlines aren't allowed.
694 (not (eq (char-before start) c-multiline-string-start-char))
695 ;; Multiline strings are allowed anywhere if
696 ;; c-multiline-string-start-char is t.
697 (not c-multiline-string-start-char))
698 (if c-string-escaped-newlines
699 ;; There's no \ before the newline.
700 (not (eq (char-before (point)) ?\\))
701 ;; Escaped newlines aren't supported.
703 (c-put-font-lock-face start (1+ start) 'font-lock-warning-face)))))
705 (c-lang-defconst c-basic-matchers-before
706 "Font lock matchers for basic keywords, labels, references and various
707 other easily recognizable things that should be fontified before generic
708 casts and declarations are fontified. Used on level 2 and higher."
710 ;; Note: `c-font-lock-declarations' assumes that no matcher here
711 ;; sets `font-lock-type-face' in languages where
712 ;; `c-recognize-<>-arglists' is set.
714 t `(;; Put a warning face on the opener of unclosed strings that
715 ;; can't span lines. Later font
716 ;; lock packages have a `font-lock-syntactic-face-function' for
717 ;; this, but it doesn't give the control we want since any
718 ;; fontification done inside the function will be
719 ;; unconditionally overridden.
720 ,(c-make-font-lock-search-function
721 ;; Match a char before the string starter to make
722 ;; `c-skip-comments-and-strings' work correctly.
723 (concat ".\\(" c-string-limit-regexp "\\)")
724 '((c-font-lock-invalid-string)))
726 ;; Fontify keyword constants.
727 ,@(when (c-lang-const c-constant-kwds)
728 (let ((re (c-make-keywords-re nil (c-lang-const c-constant-kwds))))
729 (if (c-major-mode-is 'pike-mode)
730 ;; No symbol is a keyword after "->" in Pike.
731 `((eval . (list ,(concat "\\(\\=.?\\|[^>]\\|[^-]>\\)"
732 "\\<\\(" re "\\)\\>")
733 2 c-constant-face-name)))
734 `((eval . (list ,(concat "\\<\\(" re "\\)\\>")
735 1 c-constant-face-name))))))
737 ;; Fontify all keywords except the primitive types.
738 ,(if (c-major-mode-is 'pike-mode)
739 ;; No symbol is a keyword after "->" in Pike.
740 `(,(concat "\\(\\=.?\\|[^>]\\|[^-]>\\)"
741 "\\<" (c-lang-const c-regular-keywords-regexp))
742 2 font-lock-keyword-face)
743 `(,(concat "\\<" (c-lang-const c-regular-keywords-regexp))
744 1 font-lock-keyword-face))
746 ;; Fontify leading identifiers in fully qualified names like
747 ;; "foo::bar" in languages that supports such things.
748 ,@(when (c-lang-const c-opt-identifier-concat-key)
749 (if (c-major-mode-is 'java-mode)
750 ;; Java needs special treatment since "." is used both to
751 ;; qualify names and in normal indexing. Here we look for
752 ;; capital characters at the beginning of an identifier to
753 ;; recognize the class. "*" is also recognized to cover
754 ;; wildcard import declarations. All preceding dot separated
755 ;; identifiers are taken as package names and therefore
756 ;; fontified as references.
757 `(,(c-make-font-lock-search-function
758 ;; Search for class identifiers preceded by ".". The
759 ;; anchored matcher takes it from there.
760 (concat (c-lang-const c-opt-identifier-concat-key)
761 (c-lang-const c-simple-ws) "*"
764 "[" (c-lang-const c-symbol-chars) "]*"
769 (goto-char (1+ (match-beginning 0)))
770 (while (and (eq (char-before) ?.)
773 (c-backward-syntactic-ws)
774 (setq id-end (point))
775 (< (skip-chars-backward
776 ,(c-lang-const c-symbol-chars)) 0))
777 (not (get-text-property (point) 'face)))
778 (c-put-font-lock-face (point) id-end
779 c-reference-face-name)
780 (c-backward-syntactic-ws)))
782 (goto-char (match-end 0)))))
785 ;; Must use a function here since we match longer than
786 ;; we want to move before doing a new search. This is
787 ;; not necessary for XEmacs since it restarts the
788 ;; search from the end of the first highlighted
789 ;; submatch (something that causes problems in other
792 (while (re-search-forward
793 ,(concat "\\(\\<" ; 1
794 "\\(" (c-lang-const c-symbol-key) "\\)" ; 2
795 (c-lang-const c-simple-ws) "*"
796 (c-lang-const c-opt-identifier-concat-key)
797 (c-lang-const c-simple-ws) "*"
800 (c-lang-const c-opt-after-id-concat-key)
804 (goto-char (match-beginning 0))
805 (c-skip-comments-and-strings limit))
806 (or (get-text-property (match-beginning 2) 'face)
807 (c-put-font-lock-face (match-beginning 2)
809 c-reference-face-name))
810 (goto-char (match-end 1))))))))))
812 ;; Fontify the special declarations in Objective-C.
813 ,@(when (c-major-mode-is 'objc-mode)
814 `(;; Fontify class names in the beginning of message expressions.
815 ,(c-make-font-lock-search-function
817 '((c-fontify-types-and-refs ()
818 (c-forward-syntactic-ws limit)
819 (let ((start (point)))
820 ;; In this case we accept both primitive and known types.
821 (when (eq (c-forward-type) 'known)
823 (let ((c-promote-possible-types t))
825 (if (> (point) limit) (goto-char limit)))))
827 ;; The @interface/@implementation/@protocol directives.
828 ,(c-make-font-lock-search-function
831 '("@interface" "@implementation" "@protocol")
834 '((c-fontify-types-and-refs
835 (;; The font-lock package in Emacs is known to clobber
836 ;; `parse-sexp-lookup-properties' (when it exists).
837 (parse-sexp-lookup-properties
838 (cc-eval-when-compile
839 (boundp 'parse-sexp-lookup-properties))))
840 (c-forward-objc-directive)
842 (goto-char (match-beginning 0))))))
844 (eval . (list "\\(!\\)[^=]" 1 c-negation-char-face-name))
847 (defun c-font-lock-complex-decl-prepare (limit)
848 ;; This function will be called from font-lock for a region bounded by POINT
849 ;; and LIMIT, as though it were to identify a keyword for
850 ;; font-lock-keyword-face. It always returns NIL to inhibit this and
851 ;; prevent a repeat invocation. See elisp/lispref page "Search-based
854 ;; Called before any of the matchers in `c-complex-decl-matchers'.
856 ;; This function does hidden buffer changes.
858 ;;(message "c-font-lock-complex-decl-prepare %s %s" (point) limit)
860 ;; Clear the list of found types if we start from the start of the
861 ;; buffer, to make it easier to get rid of misspelled types and
862 ;; variables that have gotten recognized as types in malformed code.
864 (c-clear-found-types))
866 ;; Clear the c-type char properties which mark the region, to recalculate
867 ;; them properly. The most interesting properties are those put on the
868 ;; closest token before the region.
871 (c-backward-syntactic-ws)
872 (c-clear-char-properties
873 (if (and (not (bobp))
874 (memq (c-get-char-property (1- (point)) 'c-type)
883 ;; Update `c-state-cache' to the beginning of the region. This will
884 ;; make `c-beginning-of-syntax' go faster when it's used later on,
885 ;; and it's near the point most of the time.
888 ;; Check if the fontified region starts inside a declarator list so
889 ;; that `c-font-lock-declarators' should be called at the start.
890 ;; The declared identifiers are font-locked correctly as types, if
891 ;; that is what they are.
892 (let ((prop (save-excursion
893 (c-backward-syntactic-ws)
895 (c-get-char-property (1- (point)) 'c-type)))))
896 (when (memq prop '(c-decl-id-start c-decl-type-start))
897 (c-forward-syntactic-ws limit)
898 (c-font-lock-declarators limit t (eq prop 'c-decl-type-start))))
900 (setq c-font-lock-context ;; (c-guess-font-lock-context)
902 (if (and c-cpp-expr-intro-re
903 (c-beginning-of-macro)
904 (looking-at c-cpp-expr-intro-re))
908 (defun c-font-lock-<>-arglists (limit)
909 ;; This function will be called from font-lock for a region bounded by POINT
910 ;; and LIMIT, as though it were to identify a keyword for
911 ;; font-lock-keyword-face. It always returns NIL to inhibit this and
912 ;; prevent a repeat invocation. See elisp/lispref page "Search-based
915 ;; Fontify types and references in names containing angle bracket
916 ;; arglists from the point to LIMIT. Note that
917 ;; `c-font-lock-declarations' already has handled many of them.
919 ;; This function might do hidden buffer changes.
921 (let (;; The font-lock package in Emacs is known to clobber
922 ;; `parse-sexp-lookup-properties' (when it exists).
923 (parse-sexp-lookup-properties
924 (cc-eval-when-compile
925 (boundp 'parse-sexp-lookup-properties)))
926 (c-parse-and-markup-<>-arglists t)
927 c-restricted-<>-arglists
928 id-start id-end id-face pos kwd-sym)
930 (while (and (< (point) limit)
931 (re-search-forward c-opt-<>-arglist-start limit t))
933 (setq id-start (match-beginning 1)
938 (unless (c-skip-comments-and-strings limit)
940 c-restricted-<>-arglists nil
941 id-face (get-text-property id-start 'face))
944 ((eq id-face 'font-lock-type-face)
945 ;; The identifier got the type face so it has already been
946 ;; handled in `c-font-lock-declarations'.
949 ((eq id-face 'font-lock-keyword-face)
950 (when (looking-at c-opt-<>-sexp-key)
951 ;; There's a special keyword before the "<" that tells
952 ;; that it's an angle bracket arglist.
953 (setq kwd-sym (c-keyword-sym (match-string 1)))))
956 ;; There's a normal identifier before the "<". If we're not in
957 ;; a declaration context then we set `c-restricted-<>-arglists'
958 ;; to avoid recognizing templates in function calls like "foo (a
960 (c-backward-syntactic-ws)
961 (when (and (memq (char-before) '(?\( ?,))
962 (not (eq (get-text-property (1- (point)) 'c-type)
964 (setq c-restricted-<>-arglists t))
969 ;; Check for comment/string both at the identifier and
971 (unless (c-skip-comments-and-strings limit)
973 (c-fontify-types-and-refs ()
974 (when (c-forward-<>-arglist (c-keyword-member
975 kwd-sym 'c-<>-type-kwds))
976 (when (and c-opt-identifier-concat-key
977 (not (get-text-property id-start 'face)))
978 (c-forward-syntactic-ws)
979 (if (looking-at c-opt-identifier-concat-key)
980 (c-put-font-lock-face id-start id-end
981 c-reference-face-name)
982 (c-put-font-lock-face id-start id-end
983 'font-lock-type-face)))))
989 (defun c-font-lock-declarators (limit list types)
990 ;; Assuming the point is at the start of a declarator in a declaration,
991 ;; fontify the identifier it declares. (If TYPES is set, it does this via
992 ;; the macro `c-fontify-types-and-refs'.)
994 ;; If LIST is non-nil, also fontify the ids in any following declarators in
995 ;; a comma separated list (e.g. "foo" and "*bar" in "int foo = 17, *bar;");
996 ;; additionally, mark the commas with c-type property 'c-decl-id-start or
997 ;; 'c-decl-type-start (according to TYPES). Stop at LIMIT.
999 ;; If TYPES is non-nil, fontify all identifiers as types.
1001 ;; Nil is always returned. The function leaves point at the delimiter after
1002 ;; the last declarator it processes.
1004 ;; This function might do hidden buffer changes.
1006 ;;(message "c-font-lock-declarators from %s to %s" (point) limit)
1007 (c-fontify-types-and-refs
1008 ((pos (point)) next-pos id-start id-end
1011 id-face got-type got-init
1012 c-last-identifier-range
1013 (separator-prop (if types 'c-decl-type-start 'c-decl-id-start))
1016 ;; The following `while' fontifies a single declarator id each time round.
1017 ;; It loops only when LIST is non-nil.
1019 (and pos (setq decl-res (c-forward-declarator limit)))
1020 (setq next-pos (point)
1021 id-start (car decl-res)
1022 id-face (if (and (eq (char-after) ?\()
1023 (not (car (cddr decl-res))) ; brackets-after-id
1024 (or (not (c-major-mode-is 'c++-mode))
1026 (let (c-last-identifier-range)
1028 (c-forward-syntactic-ws)
1032 (if (eq (char-after) ?\))
1033 (throw 'is-function t))
1034 (setq got-type (c-forward-type))
1037 (throw 'is-function nil))
1038 ((not (eq got-type 'maybe))
1039 (throw 'is-function t)))
1040 (c-forward-declarator limit t)
1041 (eq (char-after) ?,))
1043 (c-forward-syntactic-ws))
1045 'font-lock-function-name-face
1046 'font-lock-variable-name-face)
1047 got-init (and (cadr (cddr decl-res)) ; got-init
1051 ;; Register and fontify the identifier as a type.
1052 (let ((c-promote-possible-types t))
1053 (goto-char id-start)
1055 ;; Fontify the last symbol in the identifier if it isn't fontified
1056 ;; already. The check is necessary only in certain cases where this
1057 ;; function is used "sloppily", e.g. in `c-simple-decl-matchers'.
1058 (when (and c-last-identifier-range
1059 (not (get-text-property (car c-last-identifier-range)
1061 (c-put-font-lock-face (car c-last-identifier-range)
1062 (cdr c-last-identifier-range)
1065 (goto-char next-pos)
1066 (setq pos nil) ; So as to terminate the enclosing `while' form.
1068 ;; Jump past any initializer or function prototype to see if
1069 ;; there's a ',' to continue at.
1070 (cond ((eq id-face 'font-lock-function-name-face)
1071 ;; Skip a parenthesized initializer (C++) or a function
1073 (if (c-safe (c-forward-sexp 1) t) ; over the parameter list.
1074 (c-forward-syntactic-ws limit)
1075 (goto-char limit))) ; unbalanced parens
1077 (got-init ; "=" sign OR opening "(", "[", or "{"
1078 ;; Skip an initializer expression. If we're at a '='
1079 ;; then accept a brace list directly after it to cope
1080 ;; with array initializers. Otherwise stop at braces
1081 ;; to avoid going past full function and class blocks.
1082 (and (if (and (eq got-init ?=)
1083 (= (c-forward-token-2 1 nil limit) 0)
1085 (c-safe (c-forward-sexp) t) ; over { .... }
1088 ;; FIXME: Should look for c-decl-end markers here;
1089 ;; we might go far into the following declarations
1090 ;; in e.g. ObjC mode (see e.g. methods-4.m).
1091 (c-syntactic-re-search-forward "[;,{]" limit 'move t)
1094 (t (c-forward-syntactic-ws limit)))
1096 ;; If a ',' is found we set pos to the next declarator and iterate.
1097 (when (and (< (point) limit) (looking-at ","))
1098 (c-put-char-property (point) 'c-type separator-prop)
1100 (c-forward-syntactic-ws limit)
1101 (setq pos (point)))))) ; acts to make the `while' form continue.
1104 (defun c-font-lock-declarations (limit)
1105 ;; Fontify all the declarations, casts and labels from the point to LIMIT.
1106 ;; Assumes that strings and comments have been fontified already.
1108 ;; This function will be called from font-lock for a region bounded by POINT
1109 ;; and LIMIT, as though it were to identify a keyword for
1110 ;; font-lock-keyword-face. It always returns NIL to inhibit this and
1111 ;; prevent a repeat invocation. See elisp/lispref page "Search-based
1114 ;; This function might do hidden buffer changes.
1116 ;;(message "c-font-lock-declarations search from %s to %s" (point) limit)
1119 (let (;; The position where `c-find-decl-spots' last stopped.
1121 ;; o - 'decl if we're in an arglist containing declarations
1122 ;; (but if `c-recognize-paren-inits' is set it might also be
1123 ;; an initializer arglist);
1124 ;; o - '<> if the arglist is of angle bracket type;
1125 ;; o - 'arglist if it's some other arglist;
1126 ;; o - nil, if not in an arglist at all. This includes the
1127 ;; parenthesized condition which follows "if", "while", etc.
1129 ;; A list of starting positions of possible type declarations, or of
1130 ;; the typedef preceding one, if any.
1132 ;; The result from `c-forward-decl-or-cast-1'.
1134 ;; The maximum of the end positions of all the checked type
1135 ;; decl expressions in the successfully identified
1136 ;; declarations. The position might be either before or
1137 ;; after the syntactic whitespace following the last token
1138 ;; in the type decl expression.
1139 (max-type-decl-end 0)
1140 ;; Same as `max-type-decl-*', but used when we're before
1142 (max-type-decl-end-before-token 0)
1143 ;; End of <..> construct which has had c-<>-arg-sep c-type
1144 ;; properties set within it.
1146 ;; Set according to the context to direct the heuristics for
1147 ;; recognizing C++ templates.
1148 c-restricted-<>-arglists
1149 ;; Turn on recording of identifier ranges in
1150 ;; `c-forward-decl-or-cast-1' and `c-forward-label' for
1151 ;; later fontification.
1152 (c-record-type-identifiers t)
1154 c-record-ref-identifiers
1155 ;; Make `c-forward-type' calls mark up template arglists if
1156 ;; it finds any. That's necessary so that we later will
1157 ;; stop inside them to fontify types there.
1158 (c-parse-and-markup-<>-arglists t)
1159 lbrace ; position of some {.
1160 ;; The font-lock package in Emacs is known to clobber
1161 ;; `parse-sexp-lookup-properties' (when it exists).
1162 (parse-sexp-lookup-properties
1163 (cc-eval-when-compile
1164 (boundp 'parse-sexp-lookup-properties))))
1166 ;; Below we fontify a whole declaration even when it crosses the limit,
1167 ;; to avoid gaps when jit/lazy-lock fontifies the file a block at a
1168 ;; time. That is however annoying during editing, e.g. the following is
1169 ;; a common situation while the first line is being written:
1172 ;; some_other_variable = 0;
1174 ;; font-lock will put the limit at the beginning of the second line
1175 ;; here, and if we go past it we'll fontify "my_variable" as a type and
1176 ;; "some_other_variable" as an identifier, and the latter will not
1177 ;; correct itself until the second line is changed. To avoid that we
1178 ;; narrow to the limit if the region to fontify is a single line.
1179 (if (<= limit (c-point 'bonl))
1183 ;; Narrow after any operator chars following the limit though,
1184 ;; since those characters can be useful in recognizing a
1185 ;; declaration (in particular the '{' that opens a function body
1186 ;; after the header).
1188 (skip-chars-forward c-nonsymbol-chars)
1194 (eval c-maybe-decl-faces)
1196 (lambda (match-pos inside-macro)
1197 ;; Note to maintainers: don't use `limit' inside this lambda form;
1198 ;; c-find-decl-spots sometimes narrows to less than `limit'.
1199 (setq start-pos (point))
1201 ;; The result of the form below is true when we don't recognize a
1202 ;; declaration or cast.
1203 (if (or (and (eq (get-text-property (point) 'face)
1204 'font-lock-keyword-face)
1205 (looking-at c-not-decl-init-keywords))
1206 (and c-macro-with-semi-re
1207 (looking-at c-macro-with-semi-re))) ; 2008-11-04
1208 ;; Don't do anything more if we're looking at a keyword that
1209 ;; can't start a declaration.
1212 ;; Set `context' and `c-restricted-<>-arglists'. Look for
1213 ;; "<" for the sake of C++-style template arglists.
1214 ;; Ignore "(" when it's part of a control flow construct
1216 (let ((type (and (> match-pos (point-min))
1217 (c-get-char-property (1- match-pos) 'c-type))))
1218 (cond ((not (memq (char-before match-pos) '(?\( ?, ?\[ ?<)))
1220 c-restricted-<>-arglists nil))
1221 ;; A control flow expression or a decltype
1222 ((and (eq (char-before match-pos) ?\()
1224 (goto-char match-pos)
1226 (c-backward-token-2)
1227 (or (looking-at c-block-stmt-2-key)
1228 (looking-at c-block-stmt-1-2-key)
1229 (looking-at c-typeof-key))))
1231 c-restricted-<>-arglists t))
1233 ((<= match-pos (point-min))
1234 (setq context 'arglist
1235 c-restricted-<>-arglists t))
1236 ;; Got a cached hit in a declaration arglist.
1237 ((eq type 'c-decl-arg-start)
1239 c-restricted-<>-arglists nil))
1240 ;; Inside an angle bracket arglist.
1241 ((or (eq type 'c-<>-arg-sep)
1242 (eq (char-before match-pos) ?<))
1244 c-restricted-<>-arglists nil))
1245 ;; Got a cached hit in some other type of arglist.
1247 (setq context 'arglist
1248 c-restricted-<>-arglists t))
1250 (< match-pos max-type-decl-end-before-token)
1251 (< match-pos max-type-decl-end))
1252 ;; The point is within the range of a previously
1253 ;; encountered type decl expression, so the arglist
1254 ;; is probably one that contains declarations.
1255 ;; However, if `c-recognize-paren-inits' is set it
1256 ;; might also be an initializer arglist.
1258 c-restricted-<>-arglists nil)
1259 ;; The result of this check is cached with a char
1260 ;; property on the match token, so that we can look
1261 ;; it up again when refontifying single lines in a
1262 ;; multiline declaration.
1263 (c-put-char-property (1- match-pos)
1264 'c-type 'c-decl-arg-start))
1265 (t (setq context 'arglist
1266 c-restricted-<>-arglists t))))
1268 ;; Check we haven't missed a preceding "typedef".
1269 (when (not (looking-at c-typedef-key))
1270 (c-backward-syntactic-ws)
1271 (c-backward-token-2)
1272 (or (looking-at c-typedef-key)
1273 (goto-char start-pos)))
1275 ;; In QT, "more" is an irritating keyword that expands to nothing.
1276 ;; We skip over it to prevent recognition of "more slots: <symbol>"
1277 ;; as a bitfield declaration.
1278 (when (and (c-major-mode-is 'c++-mode)
1280 (concat "\\(more\\)\\([^" c-symbol-chars "]\\|$\\)")))
1281 (goto-char (match-end 1))
1282 (c-forward-syntactic-ws))
1284 ;; Now analyze the construct.
1285 (setq decl-or-cast (c-forward-decl-or-cast-1
1286 match-pos context last-cast-end))
1288 ;; Ensure that c-<>-arg-sep c-type properties are in place on the
1289 ;; commas separating the arguments inside template/generic <..>s.
1290 (when (and (eq (char-before match-pos) ?<)
1291 (> match-pos max-<>-end))
1293 (goto-char match-pos)
1294 (c-backward-token-2)
1296 (eq (char-after) ?<)
1297 (let ((c-restricted-<>-arglists
1299 (c-backward-token-2)
1301 (not (looking-at c-opt-<>-sexp-key))
1302 (progn (c-backward-syntactic-ws)
1303 (memq (char-before) '(?\( ?,)))
1304 (not (eq (c-get-char-property (1- (point))
1306 'c-decl-arg-start))))))
1307 (c-forward-<>-arglist nil)))
1308 (setq max-<>-end (point)))))
1311 ((eq decl-or-cast 'cast)
1312 ;; Save the position after the previous cast so we can feed
1313 ;; it to `c-forward-decl-or-cast-1' in the next round. That
1314 ;; helps it discover cast chains like "(a) (b) c".
1315 (setq last-cast-end (point))
1316 (c-fontify-recorded-types-and-refs)
1320 ;; We've found a declaration.
1322 ;; Set `max-type-decl-end' or `max-type-decl-end-before-token'
1323 ;; under the assumption that we're after the first type decl
1324 ;; expression in the declaration now. That's not really true;
1325 ;; we could also be after a parenthesized initializer
1326 ;; expression in C++, but this is only used as a last resort
1327 ;; to slant ambiguous expression/declarations, and overall
1328 ;; it's worth the risk to occasionally fontify an expression
1329 ;; as a declaration in an initializer expression compared to
1330 ;; getting ambiguous things in normal function prototypes
1331 ;; fontified as expressions.
1333 (when (> (point) max-type-decl-end-before-token)
1334 (setq max-type-decl-end-before-token (point)))
1335 (when (> (point) max-type-decl-end)
1336 (setq max-type-decl-end (point))))
1338 ;; Back up to the type to fontify the declarator(s).
1339 (goto-char (car decl-or-cast))
1343 ;; Should normally not fontify a list of
1344 ;; declarators inside an arglist, but the first
1345 ;; argument in the ';' separated list of a "for"
1346 ;; statement is an exception.
1347 (when (eq (char-before match-pos) ?\()
1349 (goto-char (1- match-pos))
1350 (c-backward-syntactic-ws)
1351 (and (c-simple-skip-symbol-backward)
1352 (looking-at c-paren-stmt-key))))
1355 ;; Fix the `c-decl-id-start' or `c-decl-type-start' property
1356 ;; before the first declarator if it's a list.
1357 ;; `c-font-lock-declarators' handles the rest.
1360 (c-backward-syntactic-ws)
1362 (c-put-char-property (1- (point)) 'c-type
1363 (if (cdr decl-or-cast)
1365 'c-decl-id-start)))))
1367 (c-font-lock-declarators
1368 (point-max) decl-list (cdr decl-or-cast)))
1370 ;; A declaration has been successfully identified, so do all the
1371 ;; fontification of types and refs that've been recorded.
1372 (c-fontify-recorded-types-and-refs)
1375 ;; Restore point, since at this point in the code it has been
1376 ;; left undefined by c-forward-decl-or-cast-1 above.
1377 ((progn (goto-char start-pos) nil))
1379 ;; If point is inside a bracelist, there's no point checking it
1380 ;; being at a declarator.
1381 ((let ((paren-state (c-parse-state)))
1382 (setq lbrace (c-cheap-inside-bracelist-p paren-state)))
1383 ;; Move past this bracelist to prevent an endless loop.
1385 (unless (c-safe (progn (forward-list) t))
1386 (goto-char start-pos)
1387 (c-forward-token-2))
1390 ;; If point is just after a ")" which is followed by an
1391 ;; identifier which isn't a label, or at the matching "(", we're
1392 ;; at either a macro invocation, a cast, or a
1393 ;; for/while/etc. statement. The cast case is handled above.
1394 ;; None of these cases can contain a declarator.
1395 ((or (and (eq (char-before match-pos) ?\))
1397 (save-excursion (not (c-forward-label))))
1398 (and (eq (char-after) ?\()
1401 (progn (c-backward-token-2) (c-on-identifier))
1402 (save-excursion (not (c-forward-label)))
1403 (progn (c-backward-token-2)
1404 (eq (char-after) ?\())))))
1405 (c-forward-token-2) ; Must prevent looping.
1408 ((and (not c-enums-contain-decls)
1409 ;; An optimization quickly to eliminate scans of long enum
1410 ;; declarations in the next cond arm.
1411 (let ((paren-state (c-parse-state)))
1413 (numberp (car paren-state))
1415 (goto-char (car paren-state))
1416 (c-backward-over-enum-header)))))
1421 ;; Are we at a declarator? Try to go back to the declaration
1422 ;; to check this. If we get there, check whether a "typedef"
1423 ;; is there, then fontify the declarators accordingly.
1424 (let ((decl-search-lim (c-determine-limit 1000))
1425 paren-state bod-res encl-pos is-typedef
1426 c-recognize-knr-p) ; Strictly speaking, bogus, but it
1427 ; speeds up lisp.h tremendously.
1429 (if (c-back-over-member-initializers)
1430 t ; Can't be at a declarator
1432 (looking-at "\\s(\\|\\s)"))
1434 (setq bod-res (car (c-beginning-of-decl-1 decl-search-lim)))
1435 (if (and (eq bod-res 'same)
1437 (c-backward-syntactic-ws)
1438 (eq (char-before) ?\})))
1439 (c-beginning-of-decl-1 decl-search-lim))
1441 ;; We're now putatively at the declaration.
1442 (setq paren-state (c-parse-state))
1443 ;; At top level or inside a "{"?
1444 (if (or (not (setq encl-pos
1445 (c-most-enclosing-brace paren-state)))
1446 (eq (char-after encl-pos) ?\{))
1448 (when (looking-at c-typedef-key) ; "typedef"
1450 (goto-char (match-end 0))
1451 (c-forward-syntactic-ws))
1452 ;; At a real declaration?
1453 (if (memq (c-forward-type t) '(t known found decltype))
1455 (c-font-lock-declarators (point-max) t is-typedef)
1457 ;; False alarm. Return t to go on to the next check.
1458 (goto-char start-pos)
1462 ;; It was a false alarm. Check if we're in a label (or other
1463 ;; construct with `:' except bitfield) instead.
1464 (goto-char start-pos)
1465 (when (setq label-type (c-forward-label t match-pos nil))
1466 ;; Can't use `c-fontify-types-and-refs' here since we
1467 ;; use the label face at times.
1468 (cond ((eq label-type 'goto-target)
1469 (c-put-font-lock-face (caar c-record-ref-identifiers)
1470 (cdar c-record-ref-identifiers)
1472 ((eq label-type 'qt-1kwd-colon)
1473 (c-put-font-lock-face (caar c-record-ref-identifiers)
1474 (cdar c-record-ref-identifiers)
1475 'font-lock-keyword-face))
1476 ((eq label-type 'qt-2kwds-colon)
1479 (c-put-font-lock-face (car kwd) (cdr kwd)
1480 'font-lock-keyword-face))
1481 c-record-ref-identifiers)))
1482 (setq c-record-ref-identifiers nil)
1483 ;; `c-forward-label' has probably added a `c-decl-end'
1484 ;; marker, so return t to `c-find-decl-spots' to signal
1490 (defun c-font-lock-enum-tail (limit)
1491 ;; Fontify an enum's identifiers when POINT is within the enum's brace
1494 ;; This function will be called from font-lock for a region bounded by POINT
1495 ;; and LIMIT, as though it were to identify a keyword for
1496 ;; font-lock-keyword-face. It always returns NIL to inhibit this and
1497 ;; prevent a repeat invocation. See elisp/lispref page "Search-based
1500 ;; Note that this function won't attempt to fontify beyond the end of the
1501 ;; current enum block, if any.
1502 (let* ((paren-state (c-parse-state))
1503 (encl-pos (c-most-enclosing-brace paren-state)))
1506 (eq (char-after encl-pos) ?\{)
1508 (goto-char encl-pos)
1509 (c-backward-over-enum-header)))
1510 (c-syntactic-skip-backward "^{," nil t)
1511 (c-put-char-property (1- (point)) 'c-type 'c-decl-id-start)
1513 (c-forward-syntactic-ws)
1514 (c-font-lock-declarators limit t nil)))
1517 (defun c-font-lock-enclosing-decls (limit)
1518 ;; Fontify the declarators of (nested) declarations we're in the middle of.
1519 ;; This is mainly for when a jit-lock etc. chunk starts inside the brace
1520 ;; block of a struct/union/class, etc.
1522 ;; This function will be called from font-lock for a region bounded by POINT
1523 ;; and LIMIT, as though it were to identify a keyword for
1524 ;; font-lock-keyword-face. It always returns NIL to inhibit this and
1525 ;; prevent a repeat invocation. See elisp/lispref page "Search-based
1527 (let* ((paren-state (c-parse-state))
1528 (decl-search-lim (c-determine-limit 1000))
1529 decl-context in-typedef ps-elt)
1530 ;; Are we in any nested struct/union/class/etc. braces?
1532 (setq ps-elt (car paren-state)
1533 paren-state (cdr paren-state))
1534 (when (and (atom ps-elt)
1535 (eq (char-after ps-elt) ?\{))
1537 (setq decl-context (c-beginning-of-decl-1 decl-search-lim)
1538 in-typedef (looking-at c-typedef-key))
1539 (if in-typedef (c-forward-token-2))
1540 (when (and c-opt-block-decls-with-vars-key
1541 (looking-at c-opt-block-decls-with-vars-key))
1543 (when (c-safe (c-forward-sexp))
1544 (c-forward-syntactic-ws)
1545 (c-font-lock-declarators limit t in-typedef)))))))
1547 (c-lang-defconst c-simple-decl-matchers
1548 "Simple font lock matchers for types and declarations. These are used
1549 on level 2 only and so aren't combined with `c-complex-decl-matchers'."
1551 t `(;; Objective-C methods.
1552 ,@(when (c-major-mode-is 'objc-mode)
1553 `((,(c-lang-const c-opt-method-key)
1556 (let (;; The font-lock package in Emacs is known to clobber
1557 ;; `parse-sexp-lookup-properties' (when it exists).
1558 (parse-sexp-lookup-properties
1559 (cc-eval-when-compile
1560 (boundp 'parse-sexp-lookup-properties))))
1562 (narrow-to-region (point-min) limit)
1563 (c-font-lock-objc-method)))
1565 (goto-char (match-end 1))))))
1567 ;; Fontify all type names and the identifiers in the
1568 ;; declarations they might start. Use eval here since
1569 ;; `c-known-type-key' gets its value from
1570 ;; `*-font-lock-extra-types' on mode init.
1571 (eval . (list ,(c-make-font-lock-search-function
1573 '(1 'font-lock-type-face t)
1574 '((c-font-lock-declarators limit t nil)
1576 (goto-char (match-end 1))
1577 (c-forward-syntactic-ws))
1578 (goto-char (match-end 1))))))
1580 ;; Fontify types preceded by `c-type-prefix-kwds' and the
1581 ;; identifiers in the declarations they might start.
1582 ,@(when (c-lang-const c-type-prefix-kwds)
1583 (let* ((prefix-re (c-make-keywords-re nil
1584 (c-lang-const c-type-prefix-kwds)))
1586 (regexp-opt-depth prefix-re)
1587 (c-lang-const c-simple-ws-depth))))
1588 `((,(c-make-font-lock-search-function
1589 (concat "\\<\\(" prefix-re "\\)" ; 1
1590 (c-lang-const c-simple-ws) "+"
1591 (concat "\\(" ; 2 + prefix-re + c-simple-ws
1592 (c-lang-const c-symbol-key)
1595 'font-lock-type-face t)
1596 `((c-font-lock-declarators limit t nil)
1598 (goto-char (match-end ,type-match))
1599 (c-forward-syntactic-ws))
1600 (goto-char (match-end ,type-match))))))))
1602 ;; Fontify special declarations that lacks a type.
1603 ,@(when (c-lang-const c-typeless-decl-kwds)
1604 `((,(c-make-font-lock-search-function
1606 (regexp-opt (c-lang-const c-typeless-decl-kwds))
1608 '((c-font-lock-declarators limit t nil)
1610 (goto-char (match-end 1))
1611 (c-forward-syntactic-ws))
1612 (goto-char (match-end 1)))))))
1614 ;; Fontify generic colon labels in languages that support them.
1615 ,@(when (c-lang-const c-recognize-colon-labels)
1616 `(c-font-lock-labels))))
1618 (c-lang-defconst c-complex-decl-matchers
1619 "Complex font lock matchers for types and declarations. Used on level
1622 ;; Note: This code in this form dumps a number of functions into the
1623 ;; resulting constant, `c-matchers-3'. At run time, font lock will call
1624 ;; each of them as a "FUNCTION" (see Elisp page "Search-based
1625 ;; Fontification"). The font lock region is delimited by POINT and the
1626 ;; single parameter, LIMIT. Each of these functions returns NIL (thus
1627 ;; inhibiting spurious font-lock-keyword-face highlighting and another
1630 t `(;; Initialize some things before the search functions below.
1631 c-font-lock-complex-decl-prepare
1633 ,@(if (c-major-mode-is 'objc-mode)
1634 ;; Fontify method declarations in Objective-C, but first
1635 ;; we have to put the `c-decl-end' `c-type' property on
1636 ;; all the @-style directives that haven't been handled in
1637 ;; `c-basic-matchers-before'.
1638 `(,(c-make-font-lock-search-function
1639 (c-make-keywords-re t
1640 ;; Exclude "@class" since that directive ends with a
1641 ;; semicolon anyway.
1643 (append (c-lang-const c-protection-kwds)
1644 (c-lang-const c-other-decl-kwds)
1646 '((c-put-char-property (1- (match-end 1))
1647 'c-type 'c-decl-end)))
1648 c-font-lock-objc-methods))
1650 ;; Fontify all declarations, casts and normal labels.
1651 c-font-lock-declarations
1653 ;; Fontify declarators when POINT is within their declaration.
1654 c-font-lock-enclosing-decls
1656 ;; Fontify angle bracket arglists like templates in C++.
1657 ,@(when (c-lang-const c-recognize-<>-arglists)
1658 `(c-font-lock-<>-arglists))
1660 ;; The first two rules here mostly find occurrences that
1661 ;; `c-font-lock-declarations' has found already, but not
1662 ;; declarations containing blocks in the type (see note below).
1663 ;; It's also useful to fontify these everywhere to show e.g. when
1664 ;; a type keyword is accidentally used as an identifier.
1666 ;; Fontify basic types.
1667 ,(let ((re (c-make-keywords-re nil
1668 (c-lang-const c-primitive-type-kwds))))
1669 (if (c-major-mode-is 'pike-mode)
1670 ;; No symbol is a keyword after "->" in Pike.
1671 `(,(concat "\\(\\=.?\\|[^>]\\|[^-]>\\)"
1672 "\\<\\(" re "\\)\\>")
1673 2 font-lock-type-face)
1674 `(,(concat "\\<\\(" re "\\)\\>")
1675 1 'font-lock-type-face)))
1677 ;; Fontify types preceded by `c-type-prefix-kwds' (e.g. "struct").
1678 ,@(when (c-lang-const c-type-prefix-kwds)
1681 (c-fontify-types-and-refs
1682 ((c-promote-possible-types t)
1683 ;; The font-lock package in Emacs is known to clobber
1684 ;; `parse-sexp-lookup-properties' (when it exists).
1685 (parse-sexp-lookup-properties
1686 (cc-eval-when-compile
1687 (boundp 'parse-sexp-lookup-properties))))
1689 ;; Narrow to avoid going past the limit in
1690 ;; `c-forward-type'.
1691 (narrow-to-region (point) limit)
1692 (while (re-search-forward
1694 (c-make-keywords-re nil
1695 (c-lang-const c-type-prefix-kwds))
1698 (unless (c-skip-comments-and-strings limit)
1699 (c-forward-syntactic-ws)
1700 ;; Handle prefix declaration specifiers.
1703 (when (or (looking-at c-prefix-spec-kwds-re)
1704 (and (c-major-mode-is 'java-mode)
1705 (looking-at "@[A-Za-z0-9]+")))
1706 (c-forward-keyword-clause 1)
1708 (when (looking-at c-noise-macro-with-parens-name-re)
1709 (c-forward-noise-clause)
1711 ,(if (c-major-mode-is 'c++-mode)
1712 `(when (and (c-forward-type)
1713 (eq (char-after) ?=))
1714 ;; In C++ we additionally check for a "class
1715 ;; X = Y" construct which is used in
1716 ;; templates, to fontify Y as a type.
1718 (c-forward-syntactic-ws)
1723 ;; Fontify symbols after closing braces as declaration
1724 ;; identifiers under the assumption that they are part of
1725 ;; declarations like "class Foo { ... } foo;". It's too
1726 ;; expensive to check this accurately by skipping past the
1727 ;; brace block, so we use the heuristic that it's such a
1728 ;; declaration if the first identifier is on the same line as
1729 ;; the closing brace. `c-font-lock-declarations' will later
1730 ;; override it if it turns out to be an new declaration, but
1731 ;; it will be wrong if it's an expression (see the test
1733 ;; ,@(when (c-lang-const c-opt-block-decls-with-vars-key)
1734 ;; `((,(c-make-font-lock-search-function
1736 ;; (c-lang-const c-single-line-syntactic-ws)
1737 ;; "\\(" ; 1 + c-single-line-syntactic-ws-depth
1738 ;; (c-lang-const c-type-decl-prefix-key)
1740 ;; (c-lang-const c-symbol-key)
1742 ;; `((c-font-lock-declarators limit t nil) ; That nil says use `font-lock-variable-name-face';
1743 ;; ; t would mean `font-lock-function-name-face'.
1745 ;; (c-put-char-property (match-beginning 0) 'c-type
1746 ;; 'c-decl-id-start)
1747 ;; ; 'c-decl-type-start)
1748 ;; (goto-char (match-beginning
1749 ;; ,(1+ (c-lang-const
1750 ;; c-single-line-syntactic-ws-depth)))))
1751 ;; (goto-char (match-end 0)))))))
1753 ;; Fontify the type in C++ "new" expressions.
1754 ,@(when (c-major-mode-is 'c++-mode)
1755 ;; This pattern is a probably a "(MATCHER . ANCHORED-HIGHLIGHTER)"
1756 ;; (see Elisp page "Search-based Fontification").
1758 (c-font-lock-c++-new))))
1761 (defun c-font-lock-labels (limit)
1762 ;; Fontify all statement labels from the point to LIMIT. Assumes
1763 ;; that strings and comments have been fontified already. Nil is
1766 ;; Note: This function is only used on decoration level 2; this is
1767 ;; taken care of directly by the gargantuan
1768 ;; `c-font-lock-declarations' on higher levels.
1770 ;; This function might do hidden buffer changes.
1772 (let (continue-pos id-start
1773 ;; The font-lock package in Emacs is known to clobber
1774 ;; `parse-sexp-lookup-properties' (when it exists).
1775 (parse-sexp-lookup-properties
1776 (cc-eval-when-compile
1777 (boundp 'parse-sexp-lookup-properties))))
1779 (while (re-search-forward ":[^:]" limit t)
1780 (setq continue-pos (point))
1781 (goto-char (match-beginning 0))
1782 (unless (c-skip-comments-and-strings limit)
1784 (c-backward-syntactic-ws)
1785 (and (setq id-start (c-on-identifier))
1787 (not (get-text-property id-start 'face))
1790 (goto-char id-start)
1791 (c-backward-syntactic-ws)
1793 ;; Check for a char that precedes a statement.
1794 (memq (char-before) '(?\} ?\{ ?\;))
1795 ;; Check for a preceding label. We exploit the font
1796 ;; locking made earlier by this function.
1797 (and (eq (char-before) ?:)
1800 (c-backward-syntactic-ws)
1802 (eq (get-text-property (1- (point)) 'face)
1804 ;; Check for a keyword that precedes a statement.
1805 (c-after-conditional)))
1809 (goto-char id-start)
1810 (looking-at c-symbol-key)
1811 (c-put-font-lock-face (match-beginning 0) (match-end 0)
1812 c-label-face-name)))
1814 (goto-char continue-pos))))
1817 (c-lang-defconst c-basic-matchers-after
1818 "Font lock matchers for various things that should be fontified after
1819 generic casts and declarations are fontified. Used on level 2 and
1822 t `(,@(when (c-lang-const c-brace-id-list-kwds)
1823 ;; Fontify the remaining identifiers inside an enum list when we start
1825 `(c-font-lock-enum-tail
1826 ;; Fontify the identifiers inside enum lists. (The enum type
1827 ;; name is handled by `c-simple-decl-matchers' or
1828 ;; `c-complex-decl-matchers' below.
1829 (,(c-make-font-lock-search-function
1832 (c-make-keywords-re nil (c-lang-const c-brace-id-list-kwds))
1834 ;; Disallow various common punctuation chars that can't come
1835 ;; before the '{' of the enum list, to avoid searching too far.
1838 '((c-font-lock-declarators limit t nil)
1840 (goto-char (match-end 0))
1841 (c-put-char-property (1- (point)) 'c-type
1843 (c-forward-syntactic-ws))
1844 (goto-char (match-end 0)))))))
1846 ;; Fontify labels after goto etc.
1847 ,@(when (c-lang-const c-before-label-kwds)
1848 `(;; (Got three different interpretation levels here,
1849 ;; which makes it a bit complicated: 1) The backquote
1850 ;; stuff is expanded when compiled or loaded, 2) the
1851 ;; eval form is evaluated at font-lock setup (to
1852 ;; substitute c-label-face-name correctly), and 3) the
1853 ;; resulting structure is interpreted during
1856 . ,(let* ((c-before-label-re
1857 (c-make-keywords-re nil
1858 (c-lang-const c-before-label-kwds))))
1860 ,(concat "\\<\\(" c-before-label-re "\\)\\>"
1862 "\\(" ; identifier-offset
1863 (c-lang-const c-symbol-key)
1865 (list ,(+ (regexp-opt-depth c-before-label-re) 2)
1866 c-label-face-name nil t))))))
1868 ;; Fontify the clauses after various keywords.
1869 ,@(when (or (c-lang-const c-type-list-kwds)
1870 (c-lang-const c-ref-list-kwds)
1871 (c-lang-const c-colon-type-list-kwds))
1872 `((,(c-make-font-lock-BO-decl-search-function
1874 (c-make-keywords-re nil
1875 (append (c-lang-const c-type-list-kwds)
1876 (c-lang-const c-ref-list-kwds)
1877 (c-lang-const c-colon-type-list-kwds)))
1879 '((c-fontify-types-and-refs ((c-promote-possible-types t))
1880 (c-forward-keyword-clause 1)
1881 (if (> (point) limit) (goto-char limit))))))))
1883 ,@(when (c-lang-const c-paren-type-kwds)
1884 `((,(c-make-font-lock-search-function
1886 (c-make-keywords-re nil
1887 (c-lang-const c-paren-type-kwds))
1889 '((c-fontify-types-and-refs ((c-promote-possible-types t))
1890 (c-forward-keyword-clause 1)
1891 (if (> (point) limit) (goto-char limit))))))))
1893 ,@(when (c-major-mode-is 'java-mode)
1894 `((eval . (list "\\<\\(@[a-zA-Z0-9]+\\)\\>" 1 c-annotation-face))))
1897 (c-lang-defconst c-matchers-1
1898 t (c-lang-const c-cpp-matchers))
1900 (c-lang-defconst c-matchers-2
1901 t (append (c-lang-const c-matchers-1)
1902 (c-lang-const c-basic-matchers-before)
1903 (c-lang-const c-simple-decl-matchers)
1904 (c-lang-const c-basic-matchers-after)))
1906 (c-lang-defconst c-matchers-3
1907 t (append (c-lang-const c-matchers-1)
1908 (c-lang-const c-basic-matchers-before)
1909 (c-lang-const c-complex-decl-matchers)
1910 (c-lang-const c-basic-matchers-after)))
1912 (defun c-compose-keywords-list (base-list)
1913 ;; Incorporate the font lock keyword lists according to
1914 ;; `c-doc-comment-style' on the given keyword list and return it.
1915 ;; This is used in the function bindings of the
1916 ;; `*-font-lock-keywords-*' symbols since we have to build the list
1917 ;; when font-lock is initialized.
1919 (unless (memq c-doc-face-name c-literal-faces)
1920 (setq c-literal-faces (cons c-doc-face-name c-literal-faces)))
1922 (let* ((doc-keywords
1923 (if (consp (car-safe c-doc-comment-style))
1924 (cdr-safe (or (assq c-buffer-is-cc-mode c-doc-comment-style)
1925 (assq 'other c-doc-comment-style)))
1926 c-doc-comment-style))
1927 (list (nconc (c--mapcan
1930 (concat (symbol-name doc-style)
1931 "-font-lock-keywords"))))
1932 (cond ((fboundp sym)
1935 (append (eval sym) nil)))))
1936 (if (listp doc-keywords)
1938 (list doc-keywords)))
1941 ;; Kludge: If `c-font-lock-complex-decl-prepare' is on the list we
1942 ;; move it first since the doc comment font lockers might add
1943 ;; `c-type' text properties, so they have to be cleared before that.
1944 (when (memq 'c-font-lock-complex-decl-prepare list)
1945 (setq list (cons 'c-font-lock-complex-decl-prepare
1946 (delq 'c-font-lock-complex-decl-prepare
1947 (append list nil)))))
1951 (defun c-override-default-keywords (def-var)
1952 ;; This is used to override the value on a `*-font-lock-keywords'
1953 ;; variable only if it's nil or has the same value as one of the
1954 ;; `*-font-lock-keywords-*' variables. Older font-lock packages
1955 ;; define a default value for `*-font-lock-keywords' which we want
1956 ;; to override, but we should otoh avoid clobbering a user setting.
1957 ;; This heuristic for that isn't perfect, but I can't think of any
1959 (when (and (boundp def-var)
1960 (memq (symbol-value def-var)
1964 (let ((sym (intern (concat (symbol-name def-var)
1966 (and (boundp sym) (symbol-value sym))))
1967 '("-1" "-2" "-3")))))
1968 ;; The overriding is done by unbinding the variable so that the normal
1969 ;; defvar will install its default value later on.
1970 (makunbound def-var)))
1975 (c-override-default-keywords 'c-font-lock-keywords)
1977 (defconst c-font-lock-keywords-1 (c-lang-const c-matchers-1 c)
1978 "Minimal font locking for C mode.
1979 Fontifies only preprocessor directives (in addition to the syntactic
1980 fontification of strings and comments).")
1982 (defconst c-font-lock-keywords-2 (c-lang-const c-matchers-2 c)
1983 "Fast normal font locking for C mode.
1984 In addition to `c-font-lock-keywords-1', this adds fontification of
1985 keywords, simple types, declarations that are easy to recognize, the
1986 user defined types on `c-font-lock-extra-types', and the doc comment
1987 styles specified by `c-doc-comment-style'.")
1989 (defconst c-font-lock-keywords-3 (c-lang-const c-matchers-3 c)
1990 "Accurate normal font locking for C mode.
1991 Like the variable `c-font-lock-keywords-2' but detects declarations in a more
1992 accurate way that works in most cases for arbitrary types without the
1993 need for `c-font-lock-extra-types'.")
1995 (defvar c-font-lock-keywords c-font-lock-keywords-3
1996 "Default expressions to highlight in C mode.")
1998 (defun c-font-lock-keywords-2 ()
1999 (c-compose-keywords-list c-font-lock-keywords-2))
2000 (defun c-font-lock-keywords-3 ()
2001 (c-compose-keywords-list c-font-lock-keywords-3))
2002 (defun c-font-lock-keywords ()
2003 (c-compose-keywords-list c-font-lock-keywords))
2008 (defun c-font-lock-c++-new (limit)
2009 ;; FIXME!!! Put in a comment about the context of this function's
2010 ;; invocation. I think it's called as an ANCHORED-MATCHER within an
2011 ;; ANCHORED-HIGHLIGHTER. (2007/2/10).
2013 ;; Assuming point is after a "new" word, check that it isn't inside
2014 ;; a string or comment, and if so try to fontify the type in the
2015 ;; allocation expression. Nil is always returned.
2017 ;; As usual, C++ takes the prize in coming up with a hard to parse
2020 ;; This function might do hidden buffer changes.
2022 (unless (c-skip-comments-and-strings limit)
2025 ;; A "new" keyword is followed by one to three expressions, where
2026 ;; the type is the middle one, and the only required part.
2027 (let (expr1-pos expr2-pos
2028 ;; Enable recording of identifier ranges in `c-forward-type'
2029 ;; etc for later fontification. Not using
2030 ;; `c-fontify-types-and-refs' here since the ranges should
2031 ;; be fontified selectively only when an allocation
2032 ;; expression is successfully recognized.
2033 (c-record-type-identifiers t)
2034 c-record-ref-identifiers
2035 ;; The font-lock package in Emacs is known to clobber
2036 ;; `parse-sexp-lookup-properties' (when it exists).
2037 (parse-sexp-lookup-properties
2038 (cc-eval-when-compile
2039 (boundp 'parse-sexp-lookup-properties))))
2040 (c-forward-syntactic-ws)
2042 ;; The first placement arglist is always parenthesized, if it
2044 (when (eq (char-after) ?\()
2045 (setq expr1-pos (1+ (point)))
2048 (scan-error (throw 'false-alarm t)))
2049 (c-forward-syntactic-ws))
2051 ;; The second expression is either a type followed by some "*" or
2052 ;; "[...]" or similar, or a parenthesized type followed by a full
2053 ;; identifierless declarator.
2054 (setq expr2-pos (1+ (point)))
2055 (cond ((eq (char-after) ?\())
2056 ((let ((c-promote-possible-types t))
2058 (t (setq expr2-pos nil)))
2063 ;; No second expression, so the first has to be a
2064 ;; parenthesized type.
2065 (goto-char expr1-pos)
2066 (let ((c-promote-possible-types t))
2069 ((eq (char-before expr2-pos) ?\()
2070 ;; Got two parenthesized expressions, so we have to look
2071 ;; closer at them to decide which is the type. No need to
2072 ;; handle `c-record-ref-identifiers' since all references
2073 ;; have already been handled by other fontification rules.
2074 (let (expr1-res expr2-res)
2076 (goto-char expr1-pos)
2077 (when (setq expr1-res (c-forward-type))
2079 (cc-eval-when-compile
2080 (concat (c-lang-const c-symbol-start c++)
2082 ;; There's something after the would-be type that
2083 ;; can't be there, so this is a placement arglist.
2084 (setq expr1-res nil)))
2086 (goto-char expr2-pos)
2087 (when (setq expr2-res (c-forward-type))
2089 (cc-eval-when-compile
2090 (concat (c-lang-const c-symbol-start c++)
2092 ;; There's something after the would-be type that can't
2093 ;; be there, so this is an initialization expression.
2094 (setq expr2-res nil))
2095 (when (and (c-go-up-list-forward)
2096 (progn (c-forward-syntactic-ws)
2097 (eq (char-after) ?\()))
2098 ;; If there's a third initialization expression
2099 ;; then the second one is the type, so demote the
2101 (setq expr1-res nil)))
2103 ;; We fontify the most likely type, with a preference for
2104 ;; the first argument since a placement arglist is more
2105 ;; unusual than an initializer.
2106 (cond ((memq expr1-res '(t known prefix)))
2107 ((memq expr2-res '(t known prefix)))
2108 ;; Presumably 'decltype's will be fontified elsewhere.
2109 ((eq expr1-res 'decltype))
2110 ((eq expr2-res 'decltype))
2111 ((eq expr1-res 'found)
2112 (let ((c-promote-possible-types t))
2113 (goto-char expr1-pos)
2115 ((eq expr2-res 'found)
2116 (let ((c-promote-possible-types t))
2117 (goto-char expr2-pos)
2119 ((and (eq expr1-res 'maybe) (not expr2-res))
2120 (let ((c-promote-possible-types t))
2121 (goto-char expr1-pos)
2123 ((and (not expr1-res) (eq expr2-res 'maybe))
2124 (let ((c-promote-possible-types t))
2125 (goto-char expr2-pos)
2127 ;; If both type matches are 'maybe then we're
2128 ;; too uncertain to promote either of them.
2131 ;; Fontify the type that now is recorded in
2132 ;; `c-record-type-identifiers', if any.
2133 (c-fontify-recorded-types-and-refs)))))
2136 (c-override-default-keywords 'c++-font-lock-keywords)
2138 (defconst c++-font-lock-keywords-1 (c-lang-const c-matchers-1 c++)
2139 "Minimal font locking for C++ mode.
2140 Fontifies only preprocessor directives (in addition to the syntactic
2141 fontification of strings and comments).")
2143 (defconst c++-font-lock-keywords-2 (c-lang-const c-matchers-2 c++)
2144 "Fast normal font locking for C++ mode.
2145 In addition to `c++-font-lock-keywords-1', this adds fontification of
2146 keywords, simple types, declarations that are easy to recognize, the
2147 user defined types on `c++-font-lock-extra-types', and the doc comment
2148 styles specified by `c-doc-comment-style'.")
2150 (defconst c++-font-lock-keywords-3 (c-lang-const c-matchers-3 c++)
2151 "Accurate normal font locking for C++ mode.
2152 Like the variable `c++-font-lock-keywords-2' but detects declarations in a more
2153 accurate way that works in most cases for arbitrary types without the
2154 need for `c++-font-lock-extra-types'.")
2156 (defvar c++-font-lock-keywords c++-font-lock-keywords-3
2157 "Default expressions to highlight in C++ mode.")
2159 (defun c++-font-lock-keywords-2 ()
2160 (c-compose-keywords-list c++-font-lock-keywords-2))
2161 (defun c++-font-lock-keywords-3 ()
2162 (c-compose-keywords-list c++-font-lock-keywords-3))
2163 (defun c++-font-lock-keywords ()
2164 (c-compose-keywords-list c++-font-lock-keywords))
2169 (defun c-font-lock-objc-method ()
2170 ;; Assuming the point is after the + or - that starts an Objective-C
2171 ;; method declaration, fontify it. This must be done before normal
2172 ;; casts, declarations and labels are fontified since they will get
2173 ;; false matches in these things.
2175 ;; This function might do hidden buffer changes.
2177 (c-fontify-types-and-refs
2179 (c-promote-possible-types t))
2183 (c-forward-syntactic-ws)
2185 ;; An optional method type.
2186 (if (eq (char-after) ?\()
2189 (c-forward-syntactic-ws)
2191 (prog1 (c-go-up-list-forward)
2192 (c-forward-syntactic-ws)))
2195 ;; The name. The first time it's the first part of
2196 ;; the function name, the rest of the time it's an
2198 (looking-at c-symbol-key)
2200 (goto-char (match-end 0))
2201 (c-put-font-lock-face (match-beginning 0)
2204 'font-lock-function-name-face
2205 'font-lock-variable-name-face))
2206 (c-forward-syntactic-ws)
2208 ;; Another optional part of the function name.
2209 (when (looking-at c-symbol-key)
2210 (goto-char (match-end 0))
2211 (c-put-font-lock-face (match-beginning 0)
2213 'font-lock-function-name-face)
2214 (c-forward-syntactic-ws))
2216 ;; There's another argument if a colon follows.
2217 (eq (char-after) ?:)))
2221 (defun c-font-lock-objc-methods (limit)
2222 ;; Fontify method declarations in Objective-C. Nil is always
2225 ;; This function might do hidden buffer changes.
2227 (let (;; The font-lock package in Emacs is known to clobber
2228 ;; `parse-sexp-lookup-properties' (when it exists).
2229 (parse-sexp-lookup-properties
2230 (cc-eval-when-compile
2231 (boundp 'parse-sexp-lookup-properties))))
2237 (lambda (match-pos inside-macro)
2239 (c-font-lock-objc-method))))
2242 (c-override-default-keywords 'objc-font-lock-keywords)
2244 (defconst objc-font-lock-keywords-1 (c-lang-const c-matchers-1 objc)
2245 "Minimal font locking for Objective-C mode.
2246 Fontifies only compiler directives (in addition to the syntactic
2247 fontification of strings and comments).")
2249 (defconst objc-font-lock-keywords-2 (c-lang-const c-matchers-2 objc)
2250 "Fast normal font locking for Objective-C mode.
2251 In addition to `objc-font-lock-keywords-1', this adds fontification of
2252 keywords, simple types, declarations that are easy to recognize, the
2253 user defined types on `objc-font-lock-extra-types', and the doc
2254 comment styles specified by `c-doc-comment-style'.")
2256 (defconst objc-font-lock-keywords-3 (c-lang-const c-matchers-3 objc)
2257 "Accurate normal font locking for Objective-C mode.
2258 Like the variable `objc-font-lock-keywords-2' but detects declarations in a more
2259 accurate way that works in most cases for arbitrary types without the
2260 need for `objc-font-lock-extra-types'.")
2262 (defvar objc-font-lock-keywords objc-font-lock-keywords-3
2263 "Default expressions to highlight in Objective-C mode.")
2265 (defun objc-font-lock-keywords-2 ()
2266 (c-compose-keywords-list objc-font-lock-keywords-2))
2267 (defun objc-font-lock-keywords-3 ()
2268 (c-compose-keywords-list objc-font-lock-keywords-3))
2269 (defun objc-font-lock-keywords ()
2270 (c-compose-keywords-list objc-font-lock-keywords))
2272 ;; Kludge to override the default value that
2273 ;; `objc-font-lock-extra-types' might have gotten from the font-lock
2274 ;; package. The value replaced here isn't relevant now anyway since
2275 ;; those types are builtin and therefore listed directly in
2276 ;; `c-primitive-type-kwds'.
2277 (when (equal (sort (append objc-font-lock-extra-types nil) 'string-lessp)
2278 '("BOOL" "Class" "IMP" "SEL"))
2279 (setq objc-font-lock-extra-types
2280 (cc-eval-when-compile (list (concat "[" c-upper "]\\sw*")))))
2285 (c-override-default-keywords 'java-font-lock-keywords)
2287 (defconst java-font-lock-keywords-1 (c-lang-const c-matchers-1 java)
2288 "Minimal font locking for Java mode.
2289 Fontifies nothing except the syntactic fontification of strings and
2292 (defconst java-font-lock-keywords-2 (c-lang-const c-matchers-2 java)
2293 "Fast normal font locking for Java mode.
2294 In addition to `java-font-lock-keywords-1', this adds fontification of
2295 keywords, simple types, declarations that are easy to recognize, the
2296 user defined types on `java-font-lock-extra-types', and the doc
2297 comment styles specified by `c-doc-comment-style'.")
2299 (defconst java-font-lock-keywords-3 (c-lang-const c-matchers-3 java)
2300 "Accurate normal font locking for Java mode.
2301 Like variable `java-font-lock-keywords-2' but detects declarations in a more
2302 accurate way that works in most cases for arbitrary types without the
2303 need for `java-font-lock-extra-types'.")
2305 (defvar java-font-lock-keywords java-font-lock-keywords-3
2306 "Default expressions to highlight in Java mode.")
2308 (defun java-font-lock-keywords-2 ()
2309 (c-compose-keywords-list java-font-lock-keywords-2))
2310 (defun java-font-lock-keywords-3 ()
2311 (c-compose-keywords-list java-font-lock-keywords-3))
2312 (defun java-font-lock-keywords ()
2313 (c-compose-keywords-list java-font-lock-keywords))
2318 (c-override-default-keywords 'idl-font-lock-keywords)
2320 (defconst idl-font-lock-keywords-1 (c-lang-const c-matchers-1 idl)
2321 "Minimal font locking for CORBA IDL mode.
2322 Fontifies nothing except the syntactic fontification of strings and
2325 (defconst idl-font-lock-keywords-2 (c-lang-const c-matchers-2 idl)
2326 "Fast normal font locking for CORBA IDL mode.
2327 In addition to `idl-font-lock-keywords-1', this adds fontification of
2328 keywords, simple types, declarations that are easy to recognize, the
2329 user defined types on `idl-font-lock-extra-types', and the doc comment
2330 styles specified by `c-doc-comment-style'.")
2332 (defconst idl-font-lock-keywords-3 (c-lang-const c-matchers-3 idl)
2333 "Accurate normal font locking for CORBA IDL mode.
2334 Like the variable `idl-font-lock-keywords-2' but detects declarations in a more
2335 accurate way that works in most cases for arbitrary types without the
2336 need for `idl-font-lock-extra-types'.")
2338 (defvar idl-font-lock-keywords idl-font-lock-keywords-3
2339 "Default expressions to highlight in CORBA IDL mode.")
2341 (defun idl-font-lock-keywords-2 ()
2342 (c-compose-keywords-list idl-font-lock-keywords-2))
2343 (defun idl-font-lock-keywords-3 ()
2344 (c-compose-keywords-list idl-font-lock-keywords-3))
2345 (defun idl-font-lock-keywords ()
2346 (c-compose-keywords-list idl-font-lock-keywords))
2351 (c-override-default-keywords 'pike-font-lock-keywords)
2353 (defconst pike-font-lock-keywords-1 (c-lang-const c-matchers-1 pike)
2354 "Minimal font locking for Pike mode.
2355 Fontifies only preprocessor directives (in addition to the syntactic
2356 fontification of strings and comments).")
2358 (defconst pike-font-lock-keywords-2 (c-lang-const c-matchers-2 pike)
2359 "Fast normal font locking for Pike mode.
2360 In addition to `pike-font-lock-keywords-1', this adds fontification of
2361 keywords, simple types, declarations that are easy to recognize, the
2362 user defined types on `pike-font-lock-extra-types', and the doc
2363 comment styles specified by `c-doc-comment-style'.")
2365 (defconst pike-font-lock-keywords-3 (c-lang-const c-matchers-3 pike)
2366 "Accurate normal font locking for Pike mode.
2367 Like the variable `pike-font-lock-keywords-2' but detects declarations in a more
2368 accurate way that works in most cases for arbitrary types without the
2369 need for `pike-font-lock-extra-types'.")
2371 (defvar pike-font-lock-keywords pike-font-lock-keywords-3
2372 "Default expressions to highlight in Pike mode.")
2374 (defun pike-font-lock-keywords-2 ()
2375 (c-compose-keywords-list pike-font-lock-keywords-2))
2376 (defun pike-font-lock-keywords-3 ()
2377 (c-compose-keywords-list pike-font-lock-keywords-3))
2378 (defun pike-font-lock-keywords ()
2379 (c-compose-keywords-list pike-font-lock-keywords))
2384 (defun c-font-lock-doc-comments (prefix limit keywords)
2385 ;; Fontify the comments between the point and LIMIT whose start
2386 ;; matches PREFIX with `c-doc-face-name'. Assumes comments have been
2387 ;; fontified with `font-lock-comment-face' already. nil is always
2390 ;; After the fontification of a matching comment, fontification
2391 ;; according to KEYWORDS is applied inside it. It's a list like
2392 ;; `font-lock-keywords' except that anchored matches and eval
2393 ;; clauses aren't supported and that some abbreviated forms can't be
2394 ;; used. The buffer is narrowed to the comment while KEYWORDS is
2395 ;; applied; leading comment starters are included but trailing
2396 ;; comment enders for block comment are not.
2398 ;; Note that faces added through KEYWORDS should never replace the
2399 ;; existing `c-doc-face-name' face since the existence of that face
2400 ;; is used as a flag in other code to skip comments.
2402 ;; This function might do hidden buffer changes.
2404 (let (comment-beg region-beg)
2405 (if (eq (get-text-property (point) 'face)
2406 'font-lock-comment-face)
2407 ;; Handle the case when the fontified region starts inside a
2409 (let ((range (c-literal-limits)))
2410 (setq region-beg (point))
2412 (goto-char (car range)))
2413 (when (looking-at prefix)
2414 (setq comment-beg (point)))))
2419 ;; Search for the prefix until a match is found at the start
2421 (while (when (re-search-forward prefix limit t)
2422 (setq comment-beg (match-beginning 0))
2423 (or (not (c-got-face-at comment-beg
2425 (and (/= comment-beg (point-min))
2426 (c-got-face-at (1- comment-beg)
2428 (setq comment-beg nil))
2429 (setq region-beg comment-beg))
2431 (if (elt (parse-partial-sexp comment-beg (+ comment-beg 2)) 7)
2432 ;; Collect a sequence of doc style line comments.
2434 (goto-char comment-beg)
2436 (c-forward-single-comment)
2437 (skip-syntax-forward " ")
2439 (looking-at prefix))))
2440 (goto-char comment-beg)
2441 (c-forward-single-comment))
2442 (if (> (point) limit) (goto-char limit))
2443 (setq comment-beg nil)
2445 (let ((region-end (point))
2446 (keylist keywords) keyword matcher highlights)
2447 (c-put-font-lock-face region-beg region-end c-doc-face-name)
2449 ;; Narrow to the doc comment. Among other things, this
2450 ;; helps by making "^" match at the start of the comment.
2451 ;; Do not include a trailing block comment ender, though.
2452 (and (> region-end (1+ region-beg))
2453 (progn (goto-char region-end)
2455 (looking-at "\\*/"))
2456 (setq region-end (point)))
2457 (narrow-to-region region-beg region-end)
2460 (setq keyword (car keylist)
2461 keylist (cdr keylist)
2462 matcher (car keyword))
2463 (goto-char region-beg)
2464 (while (if (stringp matcher)
2465 (re-search-forward matcher region-end t)
2466 (funcall matcher region-end))
2467 (setq highlights (cdr keyword))
2468 (if (consp (car highlights))
2470 (font-lock-apply-highlight (car highlights))
2471 (setq highlights (cdr highlights)))
2472 (font-lock-apply-highlight highlights))))
2474 (goto-char region-end)))))
2476 (put 'c-font-lock-doc-comments 'lisp-indent-function 2)
2478 (defun c-find-invalid-doc-markup (regexp limit)
2479 ;; Used to fontify invalid markup in doc comments after the correct
2480 ;; ones have been fontified: Find the first occurrence of REGEXP
2481 ;; between the point and LIMIT that only is fontified with
2482 ;; `c-doc-face-name'. If a match is found then submatch 0 surrounds
2483 ;; the first char and t is returned, otherwise nil is returned.
2485 ;; This function might do hidden buffer changes.
2487 (while (if (re-search-forward regexp limit t)
2488 (not (eq (get-text-property
2489 (setq start (match-beginning 0)) 'face)
2493 (store-match-data (list (copy-marker start)
2494 (copy-marker (1+ start))))
2497 ;; GtkDoc patterns contributed by Masatake YAMATO <jet@gyve.org>.
2499 (defconst gtkdoc-font-lock-doc-comments
2500 (let ((symbol "[a-zA-Z0-9_]+")
2502 `((,(concat header "\\(" symbol "\\):[ \t]*$")
2503 1 ,c-doc-markup-face-name prepend nil)
2504 (,(concat symbol "()")
2505 0 ,c-doc-markup-face-name prepend nil)
2506 (,(concat header "\\(" "@" symbol "\\):")
2507 1 ,c-doc-markup-face-name prepend nil)
2508 (,(concat "[#%@]" symbol)
2509 0 ,c-doc-markup-face-name prepend nil))
2512 (defconst gtkdoc-font-lock-doc-protection
2513 `(("< \\(public\\|private\\|protected\\) >"
2514 1 ,c-doc-markup-face-name prepend nil)))
2516 (defconst gtkdoc-font-lock-keywords
2518 (c-font-lock-doc-comments "/\\*\\*$" limit
2519 gtkdoc-font-lock-doc-comments)
2520 (c-font-lock-doc-comments "/\\*< " limit
2521 gtkdoc-font-lock-doc-protection)
2526 (defconst javadoc-font-lock-doc-comments
2527 `(("{@[a-z]+[^}\n\r]*}" ; "{@foo ...}" markup.
2528 0 ,c-doc-markup-face-name prepend nil)
2529 ("^\\(/\\*\\)?\\(\\s \\|\\*\\)*\\(@[a-z]+\\)" ; "@foo ..." markup.
2530 3 ,c-doc-markup-face-name prepend nil)
2531 (,(concat "</?\\sw" ; HTML tags.
2533 (concat "\\sw\\|\\s \\|[=\n\r*.:]\\|"
2534 "\"[^\"]*\"\\|'[^']*'")
2536 0 ,c-doc-markup-face-name prepend nil)
2537 ("&\\(\\sw\\|[.:]\\)+;" ; HTML entities.
2538 0 ,c-doc-markup-face-name prepend nil)
2539 ;; Fontify remaining markup characters as invalid. Note
2540 ;; that the Javadoc spec is hazy about when "@" is
2541 ;; allowed in non-markup use.
2543 (c-find-invalid-doc-markup "[<>&]\\|{@" limit))
2544 0 'font-lock-warning-face prepend nil)))
2546 (defconst javadoc-font-lock-keywords
2548 (c-font-lock-doc-comments "/\\*\\*" limit
2549 javadoc-font-lock-doc-comments)))))
2553 (defconst autodoc-decl-keywords
2554 ;; Adorned regexp matching the keywords that introduce declarations
2556 (cc-eval-when-compile
2557 (c-make-keywords-re t '("@decl" "@elem" "@index" "@member") 'pike-mode)))
2559 (defconst autodoc-decl-type-keywords
2560 ;; Adorned regexp matching the keywords that are followed by a type.
2561 (cc-eval-when-compile
2562 (c-make-keywords-re t '("@elem" "@member") 'pike-mode)))
2564 (defun autodoc-font-lock-line-markup (limit)
2565 ;; Fontify all line oriented keywords between the point and LIMIT.
2566 ;; Nil is always returned.
2568 ;; This function might do hidden buffer changes.
2570 (let ((line-re (concat "^\\(\\(/\\*!\\|\\s *\\("
2571 c-current-comment-prefix
2572 "\\)\\)\\s *\\)@[A-Za-z_-]+\\(\\s \\|$\\)"))
2573 (markup-faces (list c-doc-markup-face-name c-doc-face-name)))
2575 (while (re-search-forward line-re limit t)
2576 (goto-char (match-end 1))
2578 (if (looking-at autodoc-decl-keywords)
2579 (let* ((kwd-pos (point))
2580 (start (match-end 1))
2584 (c-put-font-lock-face (point) pos markup-faces)
2586 ;; Put a declaration end mark at the markup keyword and
2587 ;; remove the faces from the rest of the line so that it
2588 ;; gets refontified as a declaration later on by
2589 ;; `c-font-lock-declarations'.
2590 (c-put-char-property (1- pos) 'c-type 'c-decl-end)
2595 (and (eq (char-before) ?@)
2597 (progn (forward-char)
2598 (skip-syntax-forward " ")
2599 (looking-at c-current-comment-prefix))))
2600 (goto-char (match-end 0))
2601 (c-remove-font-lock-face pos (1- end))
2602 (c-put-font-lock-face (1- end) end markup-faces)
2605 ;; Include the final newline in the removed area. This
2606 ;; has no visual effect but it avoids some tricky special
2607 ;; cases in the testsuite wrt the differences in string
2608 ;; fontification in Emacs vs XEmacs.
2609 (c-remove-font-lock-face pos (min (1+ (point)) (point-max)))
2611 ;; Must handle string literals explicitly inside the declaration.
2613 (while (re-search-forward
2614 "\"\\([^\\\"]\\|\\\\.\\)*\"\\|'\\([^\\']\\|\\\\.\\)*'"
2616 (c-put-font-lock-string-face (match-beginning 0)
2619 ;; Fontify types after keywords that always are followed
2622 (when (looking-at autodoc-decl-type-keywords)
2623 (c-fontify-types-and-refs ((c-promote-possible-types t))
2625 (c-forward-syntactic-ws)
2628 ;; Mark each whole line as markup, as long as the logical line
2631 (c-put-font-lock-face (point)
2632 (progn (end-of-line) (point))
2634 (and (eq (char-before) ?@)
2636 (progn (forward-char)
2637 (skip-syntax-forward " ")
2638 (looking-at c-current-comment-prefix))))
2639 (goto-char (match-end 0))))))
2643 (defconst autodoc-font-lock-doc-comments
2644 `(("@\\(\\w+{\\|\\[\\([^]@\n\r]\\|@@\\)*\\]\\|[@}]\\|$\\)"
2646 0 ,c-doc-markup-face-name prepend nil)
2647 (autodoc-font-lock-line-markup)
2648 ;; Fontify remaining markup characters as invalid.
2650 (c-find-invalid-doc-markup "@" limit))
2651 0 'font-lock-warning-face prepend nil)
2654 (defun autodoc-font-lock-keywords ()
2655 ;; Note that we depend on that `c-current-comment-prefix' has got
2656 ;; its proper value here.
2658 ;; This function might do hidden buffer changes.
2660 ;; The `c-type' text property with `c-decl-end' is used to mark the
2661 ;; end of the `autodoc-decl-keywords' occurrences to fontify the
2662 ;; following declarations.
2663 (setq c-type-decl-end-used t)
2666 (c-font-lock-doc-comments "/[*/]!" limit
2667 autodoc-font-lock-doc-comments)))))
2670 ;; 2006-07-10: awk-font-lock-keywords has been moved back to cc-awk.el.
2671 (cc-provide 'cc-fonts)
2674 ;; indent-tabs-mode: t
2677 ;;; cc-fonts.el ends here