Source

cc-mode / cc-fonts.el

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;;; cc-fonts.el --- font lock support for CC Mode

;; Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
;;   2010, 2011  Free Software Foundation, Inc.

;; Authors:    2003- Alan Mackenzie
;;             2002- Martin Stjernholm
;; Maintainer: bug-cc-mode@gnu.org
;; Created:    07-Jan-2002
;; Version:    See cc-mode.el
;; Keywords:   c languages oop

;; This file is part of GNU Emacs.

;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.

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

;; You should have received a copy of the GNU General Public License
;; along with this program; see the file COPYING.  If not, see
;; <http://www.gnu.org/licenses/>.

;;; Commentary:

;; Some comments on the use of faces:
;;
;; o  `c-label-face-name' is either `font-lock-constant-face' (in
;;    Emacs), or `font-lock-reference-face'.
;;
;; o  `c-constant-face-name', `c-reference-face-name' and
;;    `c-doc-markup-face-name' are essentially set up like
;;    `c-label-face-name'.
;;
;; o  `c-preprocessor-face-name' is `font-lock-preprocessor-face' in
;;    XEmacs and - in lack of a closer equivalent -
;;    `font-lock-builtin-face' or `font-lock-reference-face' in Emacs.
;;
;; o  `c-doc-face-name' is `font-lock-doc-string-face' in XEmacs,
;;    `font-lock-doc-face' in Emacs 21 and later, or
;;    `font-lock-comment-face' in older Emacs (that since source
;;    documentation are actually comments in these languages, as opposed
;;    to elisp).
;;
;; TBD: We should probably provide real faces for the above uses and
;; instead initialize them from the standard faces.

;;; Code:

;; The faces that already have been put onto the text is tested in
;; various places to direct further fontifications.  For this to work,
;; the following assumptions regarding the faces must hold (apart from
;; the dependencies on the font locking order):
;;
;; o  `font-lock-comment-face' and the face in `c-doc-face-name' is
;;    not used in anything but comments.
;; o  If any face (e.g. `c-doc-markup-face-name') but those above is
;;    used in comments, it doesn't replace them.
;; o  `font-lock-string-face' is not used in anything but string
;;    literals (single or double quoted).
;; o  `font-lock-keyword-face' and the face in `c-label-face-name' are
;;    never overlaid with other faces.

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

(cc-require 'cc-defs)
(cc-require-when-compile 'cc-langs)
(cc-require 'cc-vars)
(cc-require 'cc-engine)
(cc-require-when-compile 'cc-awk) ; Change from cc-require, 2003/6/18 to
;; prevent cc-awk being loaded when it's not needed.  There is now a (require
;; 'cc-awk) in (defun awk-mode ..).

;; Avoid repeated loading through the eval-after-load directive in
;; cc-mode.el.
(provide 'cc-fonts)

(cc-external-require 'font-lock)

(cc-bytecomp-defvar parse-sexp-lookup-properties) ; Emacs only.

;; Need to declare these local symbols during compilation since
;; they're referenced from lambdas in `byte-compile' calls that are
;; executed at compile time.  They don't need to have the proper
;; definitions, though, since the generated functions aren't called
;; during compilation.
(cc-bytecomp-defvar c-preprocessor-face-name)
(cc-bytecomp-defvar c-reference-face-name)
(cc-bytecomp-defun c-fontify-recorded-types-and-refs)
(cc-bytecomp-defun c-font-lock-declarators)
(cc-bytecomp-defun c-font-lock-objc-method)
(cc-bytecomp-defun c-font-lock-invalid-string)


;; Note that font-lock in XEmacs doesn't expand face names as
;; variables, so we have to use the (eval . FORM) in the font lock
;; matchers wherever we use these alias variables.

(defconst c-preprocessor-face-name
  (cond ((c-face-name-p 'font-lock-preprocessor-face)
	 ;; XEmacs has a font-lock-preprocessor-face.
	 'font-lock-preprocessor-face)
	((c-face-name-p 'font-lock-builtin-face)
	 ;; In Emacs font-lock-builtin-face has traditionally been
	 ;; used for preprocessor directives.
	 'font-lock-builtin-face)
	(t
	 'font-lock-reference-face)))

(cc-bytecomp-defvar font-lock-constant-face)

(defconst c-label-face-name
  (cond ((c-face-name-p 'font-lock-label-face)
	 ;; If it happens to occur in the future.  (Well, the more
	 ;; pragmatic reason is to get unique faces for the test
	 ;; suite.)
	 'font-lock-label-face)
	((and (c-face-name-p 'font-lock-constant-face)
	      (eq font-lock-constant-face 'font-lock-constant-face))
	 ;; Test both if font-lock-constant-face exists and that it's
	 ;; not an alias for something else.  This is important since
	 ;; we compare already set faces in various places.
	 'font-lock-constant-face)
	(t
	 'font-lock-reference-face)))

(defconst c-constant-face-name
  (if (and (c-face-name-p 'font-lock-constant-face)
	   (eq font-lock-constant-face 'font-lock-constant-face))
      ;; This doesn't exist in some earlier versions of XEmacs 21.
      'font-lock-constant-face
    c-label-face-name))

(defconst c-reference-face-name
  (if (and (c-face-name-p 'font-lock-reference-face)
	   (eq font-lock-reference-face 'font-lock-reference-face))
      ;; This is considered obsolete in Emacs, but it still maps well
      ;; to this use.  (Another reason to do this is to get unique
      ;; faces for the test suite.)
      'font-lock-reference-face
    c-label-face-name))

;; This should not mapped to a face that also is used to fontify things
;; that aren't comments or string literals.
(defconst c-doc-face-name
  (cond ((c-face-name-p 'font-lock-doc-string-face)
	 ;; XEmacs.
	 'font-lock-doc-string-face)
	((c-face-name-p 'font-lock-doc-face)
	 ;; Emacs 21 and later.
	 'font-lock-doc-face)
	(t
	 'font-lock-comment-face)))

(defconst c-doc-markup-face-name
  (if (c-face-name-p 'font-lock-doc-markup-face)
	 ;; If it happens to occur in the future.  (Well, the more
	 ;; pragmatic reason is to get unique faces for the test
	 ;; suite.)
	 'font-lock-doc-markup-face
    c-label-face-name))

(defconst c-negation-char-face-name
  (if (c-face-name-p 'font-lock-negation-char-face)
      ;; Emacs 22 has a special face for negation chars.
      'font-lock-negation-char-face))

(cc-bytecomp-defun face-inverse-video-p) ; Only in Emacs.
(cc-bytecomp-defun face-property-instance) ; Only in XEmacs.

(defun c-make-inverse-face (oldface newface)
  ;; Emacs and XEmacs have completely different face manipulation
  ;; routines. :P
  (copy-face oldface newface)
  (cond ((fboundp 'face-inverse-video-p)
	 ;; Emacs.  This only looks at the inverse flag in the current
	 ;; frame.  Other display configurations might be different,
	 ;; but it can only show if the same Emacs has frames on
	 ;; e.g. a color and a monochrome display simultaneously.
	 (unless (face-inverse-video-p oldface)
	   (invert-face newface)))
	((fboundp 'face-property-instance)
	 ;; XEmacs.  Same pitfall here.
	 (unless (face-property-instance oldface 'reverse)
	   (invert-face newface)))))

(eval-and-compile
  ;; We need the following definitions during compilation since they're
  ;; used when the `c-lang-defconst' initializers are evaluated.  Define
  ;; them at runtime too for the sake of derived modes.

  ;; This indicates the "font locking context", and is set just before
  ;; fontification is done.  If non-nil, it says, e.g., point starts
  ;; from within a #if preprocessor construct.
  (defvar c-font-lock-context nil)
  (make-variable-buffer-local 'c-font-lock-context)
  
  (defmacro c-put-font-lock-face (from to face)
    ;; Put a face on a region (overriding any existing face) in the way
    ;; font-lock would do it.  In XEmacs that means putting an
    ;; additional font-lock property, or else the font-lock package
    ;; won't recognize it as fontified and might override it
    ;; incorrectly.
    ;;
    ;; This function does a hidden buffer change.
    (if (fboundp 'font-lock-set-face)
	;; Note: This function has no docstring in XEmacs so it might be
	;; considered internal.
	`(font-lock-set-face ,from ,to ,face)
      `(put-text-property ,from ,to 'face ,face)))

  (defmacro c-remove-font-lock-face (from to)
    ;; This is the inverse of `c-put-font-lock-face'.
    ;;
    ;; This function does a hidden buffer change.
    (if (fboundp 'font-lock-remove-face)
	`(font-lock-remove-face ,from ,to)
      `(remove-text-properties ,from ,to '(face nil))))

  (defmacro c-put-font-lock-string-face (from to)
    ;; Put `font-lock-string-face' on a string.  The surrounding
    ;; quotes are included in Emacs but not in XEmacs.  The passed
    ;; region should include them.
    ;;
    ;; This function does a hidden buffer change.
    (if (featurep 'xemacs)
	`(c-put-font-lock-face (1+ ,from) (1- ,to) 'font-lock-string-face)
      `(c-put-font-lock-face ,from ,to 'font-lock-string-face)))

  (defmacro c-fontify-types-and-refs (varlist &rest body)
    ;; Like `let', but additionally activates `c-record-type-identifiers'
    ;; and `c-record-ref-identifiers', and fontifies the recorded ranges
    ;; accordingly on exit.
    ;;
    ;; This function does hidden buffer changes.
    `(let ((c-record-type-identifiers t)
	   c-record-ref-identifiers
	   ,@varlist)
       (prog1 (progn ,@body)
	 (c-fontify-recorded-types-and-refs))))
  (put 'c-fontify-types-and-refs 'lisp-indent-function 1)

  (defun c-skip-comments-and-strings (limit)
    ;; If the point is within a region fontified as a comment or
    ;; string literal skip to the end of it or to LIMIT, whichever
    ;; comes first, and return t.  Otherwise return nil.  The match
    ;; data is not clobbered.
    ;;
    ;; This function might do hidden buffer changes.
    (when (c-got-face-at (point) c-literal-faces)
      (while (progn
	       (goto-char (c-next-single-property-change
			   (point) 'face nil limit))
	       (and (< (point) limit)
		    (c-got-face-at (point) c-literal-faces))))
      t))

  (defun c-make-syntactic-matcher (regexp)
    ;; Returns a byte compiled function suitable for use in place of a
    ;; regexp string in a `font-lock-keywords' matcher, except that
    ;; only matches outside comments and string literals count.
    ;;
    ;; This function does not do any hidden buffer changes, but the
    ;; generated functions will.  (They are however used in places
    ;; covered by the font-lock context.)
    (byte-compile
     `(lambda (limit)
	(let (res)
	  (while (and (setq res (re-search-forward ,regexp limit t))
		      (progn
			(goto-char (match-beginning 0))
			(or (c-skip-comments-and-strings limit)
			    (progn
			      (goto-char (match-end 0))
			      nil)))))
	  res))))

  (defun c-make-font-lock-search-form (regexp highlights)
    ;; Return a lisp form which will fontify every occurence of REGEXP
    ;; (a regular expression, NOT a function) between POINT and `limit'
    ;; with HIGHLIGHTS, a list of highlighters as specified on page
    ;; "Search-based Fontification" in the elisp manual.
    `(while (re-search-forward ,regexp limit t)
       (unless (progn
		 (goto-char (match-beginning 0))
		 (c-skip-comments-and-strings limit))
	 (goto-char (match-end 0))
	 ,@(mapcar
	    (lambda (highlight)
	      (if (integerp (car highlight))
		  ;; e.g. highlight is (1 font-lock-type-face t)
		  (progn
		    (unless (eq (nth 2 highlight) t)
		      (error
		       "The override flag must currently be t in %s"
		       highlight))
		    (when (nth 3 highlight)
		      (error
		       "The laxmatch flag may currently not be set in %s"
		       highlight))
		    `(save-match-data
		       (c-put-font-lock-face
			(match-beginning ,(car highlight))
			(match-end ,(car highlight))
			,(elt highlight 1))))
		;; highlight is an "ANCHORED HIGHLIGHER" of the form
		;; (ANCHORED-MATCHER PRE-FORM POST-FORM SUBEXP-HIGHLIGHTERS...)
		(when (nth 3 highlight)
		  (error "Match highlights currently not supported in %s"
			 highlight))
		`(progn
		   ,(nth 1 highlight)
		   (save-match-data ,(car highlight))
		   ,(nth 2 highlight))))
	    highlights))))

  (defun c-make-font-lock-search-function (regexp &rest highlights)
    ;; This function makes a byte compiled function that works much like
    ;; a matcher element in `font-lock-keywords'.  It cuts out a little
    ;; bit of the overhead compared to a real matcher.  The main reason
    ;; is however to pass the real search limit to the anchored
    ;; matcher(s), since most (if not all) font-lock implementations
    ;; arbitrarily limit anchored matchers to the same line, and also
    ;; to insulate against various other irritating differences between
    ;; the different (X)Emacs font-lock packages.
    ;;
    ;; REGEXP is the matcher, which must be a regexp.  Only matches
    ;; where the beginning is outside any comment or string literal are
    ;; significant.
    ;;
    ;; HIGHLIGHTS is a list of highlight specs, just like in
    ;; `font-lock-keywords', with these limitations: The face is always
    ;; overridden (no big disadvantage, since hits in comments etc are
    ;; filtered anyway), there is no "laxmatch", and an anchored matcher
    ;; is always a form which must do all the fontification directly.
    ;; `limit' is a variable bound to the real limit in the context of
    ;; the anchored matcher forms.
    ;;
    ;; This function does not do any hidden buffer changes, but the
    ;; generated functions will.  (They are however used in places
    ;; covered by the font-lock context.)

    ;; Note: Replace `byte-compile' with `eval' to debug the generated
    ;; lambda more easily.
    (byte-compile
     `(lambda (limit)
	(let ( ;; The font-lock package in Emacs is known to clobber
	      ;; `parse-sexp-lookup-properties' (when it exists).
	      (parse-sexp-lookup-properties
	       (cc-eval-when-compile
		 (boundp 'parse-sexp-lookup-properties))))
	  ,(c-make-font-lock-search-form regexp highlights))
	nil)))

  (defun c-make-font-lock-BO-decl-search-function (regexp &rest highlights)
    ;; This function makes a byte compiled function that first moves back
    ;; to the beginning of the current declaration (if any), then searches
    ;; forward for matcher elements (as in `font-lock-keywords') and
    ;; fontifies them.
    ;;
    ;; The motivation for moving back to the declaration start is to
    ;; establish a context for the current text when, e.g., a character
    ;; is typed on a C++ inheritance continuation line, or a jit-lock
    ;; chunk starts there.
    ;; 
    ;; The new function works much like a matcher element in
    ;; `font-lock-keywords'.  It cuts out a little bit of the overhead
    ;; compared to a real matcher.  The main reason is however to pass the
    ;; real search limit to the anchored matcher(s), since most (if not
    ;; all) font-lock implementations arbitrarily limit anchored matchers
    ;; to the same line, and also to insulate against various other
    ;; irritating differences between the different (X)Emacs font-lock
    ;; packages.
    ;;
    ;; REGEXP is the matcher, which must be a regexp.  Only matches
    ;; where the beginning is outside any comment or string literal are
    ;; significant.
    ;;
    ;; HIGHLIGHTS is a list of highlight specs, just like in
    ;; `font-lock-keywords', with these limitations: The face is always
    ;; overridden (no big disadvantage, since hits in comments etc are
    ;; filtered anyway), there is no "laxmatch", and an anchored matcher
    ;; is always a form which must do all the fontification directly.
    ;; `limit' is a variable bound to the real limit in the context of
    ;; the anchored matcher forms.
    ;;
    ;; This function does not do any hidden buffer changes, but the
    ;; generated functions will.  (They are however used in places
    ;; covered by the font-lock context.)

    ;; Note: Replace `byte-compile' with `eval' to debug the generated
    ;; lambda more easily.
    (byte-compile
     `(lambda (limit)
	(let ( ;; The font-lock package in Emacs is known to clobber
	      ;; `parse-sexp-lookup-properties' (when it exists).
	      (parse-sexp-lookup-properties
	       (cc-eval-when-compile
		 (boundp 'parse-sexp-lookup-properties)))
	      (BOD-limit
	       (c-determine-limit 1000)))
	  (goto-char
	   (let ((here (point)))
	     (if (eq (car (c-beginning-of-decl-1 BOD-limit)) 'same)
		 (point)
	       here)))
	  ,(c-make-font-lock-search-form regexp highlights))
	nil)))

  (defun c-make-font-lock-context-search-function (normal &rest state-stanzas)
    ;; This function makes a byte compiled function that works much like
    ;; a matcher element in `font-lock-keywords', with the following
    ;; enhancement: the generated function will test for particular "font
    ;; lock contexts" at the start of the region, i.e. is this point in
    ;; the middle of some particular construct?  if so the generated
    ;; function will first fontify the tail of the construct, before
    ;; going into the main loop and fontify full constructs up to limit.
    ;;
    ;; The generated function takes one parameter called `limit', and
    ;; will fontify the region between POINT and LIMIT.
    ;;
    ;; NORMAL is a list of the form (REGEXP HIGHLIGHTS .....), and is
    ;; used to fontify the "regular" bit of the region.
    ;; STATE-STANZAS is list of elements of the form (STATE LIM REGEXP
    ;; HIGHLIGHTS), each element coding one possible font lock context.

    ;; o - REGEXP is a font-lock regular expression (NOT a function),
    ;; o - HIGHLIGHTS is a list of zero or more highlighters as defined
    ;;   on page "Search-based Fontification" in the elisp manual.  As
    ;;   yet (2009-06), they must have OVERRIDE set, and may not have
    ;;   LAXMATCH set.
    ;;
    ;; o - STATE is the "font lock context" (e.g. in-cpp-expr) and is
    ;;   not quoted.
    ;; o - LIM is a lisp form whose evaluation will yield the limit
    ;;   position in the buffer for fontification by this stanza.
    ;;
    ;; This function does not do any hidden buffer changes, but the
    ;; generated functions will.  (They are however used in places
    ;; covered by the font-lock context.)
    ;; 
    ;; Note: Replace `byte-compile' with `eval' to debug the generated
    ;; lambda more easily.
    (byte-compile
     `(lambda (limit)
	(let ( ;; The font-lock package in Emacs is known to clobber
	      ;; `parse-sexp-lookup-properties' (when it exists).
	      (parse-sexp-lookup-properties
	       (cc-eval-when-compile
		 (boundp 'parse-sexp-lookup-properties))))
	  ,@(mapcar
	     (lambda (stanza)
	       (let ((state (car stanza))
		     (lim (nth 1 stanza))
		     (regexp (nth 2 stanza))
		     (highlights (cdr (cddr stanza))))
		 `(if (eq c-font-lock-context ',state)
		      (let ((limit ,lim))
			,(c-make-font-lock-search-form
			  regexp highlights)))))
	     state-stanzas)
	  ,(c-make-font-lock-search-form (car normal) (cdr normal))
	  nil))))

  (eval-after-load "edebug"
    '(progn
       (def-edebug-spec c-fontify-types-and-refs let*)
       (def-edebug-spec c-make-syntactic-matcher t)
       ;; If there are literal quoted or backquoted highlight specs in
       ;; the call to `c-make-font-lock-search-function' then let's
       ;; instrument the forms in them.
       (def-edebug-spec c-make-font-lock-search-function
	 (form &rest &or ("quote" (&rest form)) ("`" (&rest form)) form)))))

(defun c-fontify-recorded-types-and-refs ()
  ;; Convert the ranges recorded on `c-record-type-identifiers' and
  ;; `c-record-ref-identifiers' to fontification.
  ;;
  ;; This function does hidden buffer changes.
  (let (elem)
    (while (consp c-record-type-identifiers)
      (setq elem (car c-record-type-identifiers)
	    c-record-type-identifiers (cdr c-record-type-identifiers))
      (c-put-font-lock-face (car elem) (cdr elem)
			    'font-lock-type-face))
    (while c-record-ref-identifiers
      (setq elem (car c-record-ref-identifiers)
	    c-record-ref-identifiers (cdr c-record-ref-identifiers))
      ;; Note that the reference face is a variable that is
      ;; dereferenced, since it's an alias in Emacs.
      (c-put-font-lock-face (car elem) (cdr elem)
			    c-reference-face-name))))

(c-lang-defconst c-cpp-matchers
  "Font lock matchers for preprocessor directives and purely lexical
stuff.  Used on level 1 and higher."

  ;; Note: `c-font-lock-declarations' assumes that no matcher here
  ;; sets `font-lock-type-face' in languages where
  ;; `c-recognize-<>-arglists' is set.

  t `(,@(when (c-lang-const c-opt-cpp-prefix)
	  (let* ((noncontinued-line-end "\\(\\=\\|\\(\\=\\|[^\\]\\)[\n\r]\\)")
		 (ncle-depth (regexp-opt-depth noncontinued-line-end))
		 (sws-depth (c-lang-const c-syntactic-ws-depth))
		 (nsws-depth (c-lang-const c-nonempty-syntactic-ws-depth)))

	    `(;; The stuff after #error and #warning is a message, so
	      ;; fontify it as a string.
	      ,@(when (c-lang-const c-cpp-message-directives)
		  (let* ((re (c-make-keywords-re 'appendable ; nil
			       (c-lang-const c-cpp-message-directives)))
			 (re-depth (regexp-opt-depth re)))
		    `((,(concat noncontinued-line-end
				(c-lang-const c-opt-cpp-prefix)
				re
				"\\s +\\(.*\\)$")
		       ,(+ ncle-depth re-depth 1) font-lock-string-face t))))

	      ;; Fontify filenames in #include <...> as strings.
	      ,@(when (c-lang-const c-cpp-include-directives)
		  (let* ((re (c-make-keywords-re nil
			       (c-lang-const c-cpp-include-directives)))
			 (re-depth (regexp-opt-depth re)))
		    `((,(concat noncontinued-line-end
				(c-lang-const c-opt-cpp-prefix)
				re
				(c-lang-const c-syntactic-ws)
				"\\(<[^>\n\r]*>?\\)")
		       (,(+ ncle-depth re-depth sws-depth 1)
			font-lock-string-face)

		       ;; Use an anchored matcher to put paren syntax
		       ;; on the brackets.
		       (,(byte-compile
			  `(lambda (limit)
			     (let ((beg (match-beginning
					 ,(+ ncle-depth re-depth sws-depth 1)))
				   (end (1- (match-end ,(+ ncle-depth re-depth
							   sws-depth 1)))))
			       (if (eq (char-after end) ?>)
				   (progn
				     (c-mark-<-as-paren beg)
				     (c-mark->-as-paren end))
				 (c-unmark-<->-as-paren beg)))
			     nil)))))))

	      ;; #define.
	      ,@(when (c-lang-const c-opt-cpp-macro-define)
		  `((,(c-make-font-lock-search-function
		       (concat
			noncontinued-line-end
			(c-lang-const c-opt-cpp-prefix)
			(c-lang-const c-opt-cpp-macro-define)
			(c-lang-const c-nonempty-syntactic-ws)
			"\\(" (c-lang-const ; 1 + ncle + nsws
			       c-symbol-key) "\\)"
			(concat "\\("	; 2 + ncle + nsws + c-sym-key
				;; Macro with arguments - a "function".
				"\\(\(\\)" ; 3 + ncle + nsws + c-sym-key
				"\\|"
				;; Macro without arguments - a "variable".
				"\\([^\(]\\|$\\)"
				"\\)"))
		       `((if (match-beginning
			      ,(+ 3 ncle-depth nsws-depth
				  (c-lang-const c-symbol-key-depth)))

			     ;; "Function".  Fontify the name and the arguments.
			     (save-restriction
			       (c-put-font-lock-face
				(match-beginning ,(+ 1 ncle-depth nsws-depth))
				(match-end ,(+ 1 ncle-depth nsws-depth))
				'font-lock-function-name-face)
			       (goto-char
				(match-end
				 ,(+ 3 ncle-depth nsws-depth
				     (c-lang-const c-symbol-key-depth))))

			       (narrow-to-region (point-min) limit)
			       (while (and
				       (progn
					 (c-forward-syntactic-ws)
					 (looking-at c-symbol-key))
				       (progn
					 (c-put-font-lock-face
					  (match-beginning 0) (match-end 0)
					  'font-lock-variable-name-face)
					 (goto-char (match-end 0))
					 (c-forward-syntactic-ws)
					 (eq (char-after) ?,)))
				 (forward-char)))

			   ;; "Variable".
			   (c-put-font-lock-face
			    (match-beginning ,(+ 1 ncle-depth nsws-depth))
			    (match-end ,(+ 1 ncle-depth nsws-depth))
			    'font-lock-variable-name-face)))))))

	      ;; Fontify cpp function names in preprocessor
	      ;; expressions in #if and #elif.
	      ,@(when (and (c-lang-const c-cpp-expr-directives)
			   (c-lang-const c-cpp-expr-functions))
		  (let ((ced-re (c-make-keywords-re t
				  (c-lang-const c-cpp-expr-directives)))
			(cef-re (c-make-keywords-re t
				  (c-lang-const c-cpp-expr-functions))))

		    `((,(c-make-font-lock-context-search-function
			 `(,(concat noncontinued-line-end
				    (c-lang-const c-opt-cpp-prefix)
				    ced-re ; 1 + ncle-depth
				    ;; Match the whole logical line to look
				    ;; for the functions in.
				    "\\(\\\\\\(.\\|[\n\r]\\)\\|[^\n\r]\\)*")
			   ((let ((limit (match-end 0)))
			      (while (re-search-forward ,cef-re limit 'move)
				(c-put-font-lock-face (match-beginning 1)
						      (match-end 1)
						      c-preprocessor-face-name)))
			    (goto-char (match-end ,(1+ ncle-depth)))))
			 `(in-cpp-expr
			   (save-excursion (c-end-of-macro) (point))
			   ,cef-re
			   (1 c-preprocessor-face-name t)))))))

	      ;; Fontify the directive names.
	      (,(c-make-font-lock-search-function
		 (concat noncontinued-line-end
			 "\\("
			 (c-lang-const c-opt-cpp-prefix)
			 "[" (c-lang-const c-symbol-chars) "]+"
			 "\\)")
		 `(,(1+ ncle-depth) c-preprocessor-face-name t)))

	      (eval . (list ,(c-make-syntactic-matcher
			      (concat noncontinued-line-end
				      (c-lang-const c-opt-cpp-prefix)
				      "if\\(n\\)def\\>"))
			    ,(+ ncle-depth 1)
			    c-negation-char-face-name
			    'append))
	      )))

      ,@(when (c-major-mode-is 'pike-mode)
	  ;; Recognize hashbangs in Pike.
	  `((eval . (list "\\`#![^\n\r]*"
			  0 c-preprocessor-face-name))))

      ;; Make hard spaces visible through an inverted `font-lock-warning-face'.
      (eval . (list
	       "\240"
	       0 (progn
		   (unless (c-face-name-p 'c-nonbreakable-space-face)
		     (c-make-inverse-face 'font-lock-warning-face
					  'c-nonbreakable-space-face))
		   ''c-nonbreakable-space-face)))
      ))

(defun c-font-lock-invalid-string ()
  ;; Assuming the point is after the opening character of a string,
  ;; fontify that char with `font-lock-warning-face' if the string
  ;; decidedly isn't terminated properly.
  ;;
  ;; This function does hidden buffer changes.
  (let ((start (1- (point))))
    (save-excursion
      (and (eq (elt (parse-partial-sexp start (c-point 'eol)) 8) start)
	   (if (if (integerp ?c)
		   ;; Emacs
		   (integerp c-multiline-string-start-char)
		 ;; XEmacs
		 (characterp c-multiline-string-start-char))
	       ;; There's no multiline string start char before the
	       ;; string, so newlines aren't allowed.
	       (not (eq (char-before start) c-multiline-string-start-char))
	     ;; Multiline strings are allowed anywhere if
	     ;; c-multiline-string-start-char is t.
	     (not c-multiline-string-start-char))
	   (if c-string-escaped-newlines
	       ;; There's no \ before the newline.
	       (not (eq (char-before (point)) ?\\))
	     ;; Escaped newlines aren't supported.
	     t)
	   (c-put-font-lock-face start (1+ start) 'font-lock-warning-face)))))

(c-lang-defconst c-basic-matchers-before
  "Font lock matchers for basic keywords, labels, references and various
other easily recognizable things that should be fontified before generic
casts and declarations are fontified.  Used on level 2 and higher."

  ;; Note: `c-font-lock-declarations' assumes that no matcher here
  ;; sets `font-lock-type-face' in languages where
  ;; `c-recognize-<>-arglists' is set.

  t `(;; Put a warning face on the opener of unclosed strings that
      ;; can't span lines.  Later font
      ;; lock packages have a `font-lock-syntactic-face-function' for
      ;; this, but it doesn't give the control we want since any
      ;; fontification done inside the function will be
      ;; unconditionally overridden.
      ,(c-make-font-lock-search-function
	;; Match a char before the string starter to make
	;; `c-skip-comments-and-strings' work correctly.
	(concat ".\\(" c-string-limit-regexp "\\)")
	'((c-font-lock-invalid-string)))

      ;; Fontify keyword constants.
      ,@(when (c-lang-const c-constant-kwds)
	  (let ((re (c-make-keywords-re nil (c-lang-const c-constant-kwds))))
	    (if (c-major-mode-is 'pike-mode)
		;; No symbol is a keyword after "->" in Pike.
		`((eval . (list ,(concat "\\(\\=.?\\|[^>]\\|[^-]>\\)"
					 "\\<\\(" re "\\)\\>")
				2 c-constant-face-name)))
	      `((eval . (list ,(concat "\\<\\(" re "\\)\\>")
			      1 c-constant-face-name))))))

      ;; Fontify all keywords except the primitive types.
      ,(if (c-major-mode-is 'pike-mode)
	   ;; No symbol is a keyword after "->" in Pike.
	   `(,(concat "\\(\\=.?\\|[^>]\\|[^-]>\\)"
		      "\\<" (c-lang-const c-regular-keywords-regexp))
	     2 font-lock-keyword-face)
	 `(,(concat "\\<" (c-lang-const c-regular-keywords-regexp))
	   1 font-lock-keyword-face))

      ;; The following must come before c-font-lock-enclosing-decls in
      ;; c-complex-decl-matchers.  It fontifies java @annotations.
      ,@(when (c-major-mode-is 'java-mode)
	  `((eval . (list "\\<\\(@[a-zA-Z0-9]+\\)\\>" 1
			  c-preprocessor-face-name
			  ))))

      ;; Fontify leading identifiers in fully qualified names like
      ;; "foo::bar" in languages that supports such things.
      ,@(when (c-lang-const c-opt-identifier-concat-key)
	  (if (c-major-mode-is 'java-mode)
	      ;; Java needs special treatment since "." is used both to
	      ;; qualify names and in normal indexing.  Here we look for
	      ;; capital characters at the beginning of an identifier to
	      ;; recognize the class.  "*" is also recognized to cover
	      ;; wildcard import declarations.  All preceding dot separated
	      ;; identifiers are taken as package names and therefore
	      ;; fontified as references.
	      `(,(c-make-font-lock-search-function
		  ;; Search for class identifiers preceded by ".".  The
		  ;; anchored matcher takes it from there.
		  (concat (c-lang-const c-opt-identifier-concat-key)
			  (c-lang-const c-simple-ws) "*"
			  (concat "\\("
				  "[" c-upper "]"
				  "[" (c-lang-const c-symbol-chars) "]*"
				  "\\|"
				  "\\*"
				  "\\)"))
		  `((let (id-end)
		      (goto-char (1+ (match-beginning 0)))
		      (while (and (eq (char-before) ?.)
				  (progn
				    (backward-char)
				    (c-backward-syntactic-ws)
				    (setq id-end (point))
				    (< (skip-chars-backward
					,(c-lang-const c-symbol-chars)) 0))
				  (not (get-text-property (point) 'face)))
			(c-put-font-lock-face (point) id-end
					      c-reference-face-name)
			(c-backward-syntactic-ws)))
		    nil
		    (goto-char (match-end 0)))))

	    `((,(byte-compile
		 ;; Must use a function here since we match longer than
		 ;; we want to move before doing a new search.  This is
		 ;; not necessary for XEmacs since it restarts the
		 ;; search from the end of the first highlighted
		 ;; submatch (something that causes problems in other
		 ;; places).
		 `(lambda (limit)
		    (while (re-search-forward
			    ,(concat "\\(\\<" ; 1
				     "\\(" (c-lang-const c-symbol-key) "\\)" ; 2
				     (c-lang-const c-simple-ws) "*"
				     (c-lang-const c-opt-identifier-concat-key)
				     (c-lang-const c-simple-ws) "*"
				     "\\)"
				     "\\("
				     (c-lang-const c-opt-after-id-concat-key)
				     "\\)")
			    limit t)
		      (unless (progn
				(goto-char (match-beginning 0))
				(c-skip-comments-and-strings limit))
			(or (get-text-property (match-beginning 2) 'face)
			    (c-put-font-lock-face (match-beginning 2)
						  (match-end 2)
						  c-reference-face-name))
			(goto-char (match-end 1))))))))))

      ;; Fontify the special declarations in Objective-C.
      ,@(when (c-major-mode-is 'objc-mode)
	  `(;; Fontify class names in the beginning of message expressions.
	    ,(c-make-font-lock-search-function
	      "\\["
	      '((c-fontify-types-and-refs ()
		  (c-forward-syntactic-ws limit)
		  (let ((start (point)))
		    ;; In this case we accept both primitive and known types.
		    (when (eq (c-forward-type) 'known)
		      (goto-char start)
		      (let ((c-promote-possible-types t))
			(c-forward-type))))
		  (if (> (point) limit) (goto-char limit)))))

	    ;; The @interface/@implementation/@protocol directives.
	    ,(c-make-font-lock-search-function
	      (concat "\\<"
		      (regexp-opt
		       '("@interface" "@implementation" "@protocol")
		       t)
		      "\\>")
	      '((c-fontify-types-and-refs
		    (;; The font-lock package in Emacs is known to clobber
		     ;; `parse-sexp-lookup-properties' (when it exists).
		     (parse-sexp-lookup-properties
		      (cc-eval-when-compile
			(boundp 'parse-sexp-lookup-properties))))
		  (c-forward-objc-directive)
		  nil)
		(goto-char (match-beginning 0))))))

      (eval . (list "\\(!\\)[^=]" 1 c-negation-char-face-name))
      ))

(defun c-font-lock-complex-decl-prepare (limit)
  ;; This function will be called from font-lock for a region bounded by POINT
  ;; and LIMIT, as though it were to identify a keyword for
  ;; font-lock-keyword-face.  It always returns NIL to inhibit this and
  ;; prevent a repeat invocation.  See elisp/lispref page "Search-based
  ;; Fontification".
  ;;
  ;; Called before any of the matchers in `c-complex-decl-matchers'.
  ;;
  ;; This function does hidden buffer changes.

  ;;(message "c-font-lock-complex-decl-prepare %s %s" (point) limit)

  ;; Clear the list of found types if we start from the start of the
  ;; buffer, to make it easier to get rid of misspelled types and
  ;; variables that have gotten recognized as types in malformed code.
  (when (bobp)
    (c-clear-found-types))

  ;; Clear the c-type char properties which mark the region, to recalculate
  ;; them properly.  The most interesting properties are those put on the
  ;; closest token before the region.
  (save-excursion
    (let ((pos (point)))
      (c-backward-syntactic-ws)
      (c-clear-char-properties
       (if (and (not (bobp))
		(memq (c-get-char-property (1- (point)) 'c-type)
		      '(c-decl-arg-start
			c-decl-end
			c-decl-id-start
			c-decl-type-start)))
	   (1- (point))
	 pos)
       limit 'c-type)))

  ;; Update `c-state-cache' to the beginning of the region.  This will
  ;; make `c-beginning-of-syntax' go faster when it's used later on,
  ;; and it's near the point most of the time.
  (c-parse-state)

  ;; Check if the fontified region starts inside a declarator list so
  ;; that `c-font-lock-declarators' should be called at the start.
  ;; The declared identifiers are font-locked correctly as types, if
  ;; that is what they are.
  (let ((prop (save-excursion
		(c-backward-syntactic-ws)
		(unless (bobp)
		  (c-get-char-property (1- (point)) 'c-type)))))
    (when (memq prop '(c-decl-id-start c-decl-type-start))
      (c-forward-syntactic-ws limit)
      (c-font-lock-declarators limit t (eq prop 'c-decl-type-start))))

  (setq c-font-lock-context ;; (c-guess-font-lock-context)
	(save-excursion
	  (if (and c-cpp-expr-intro-re
		   (c-beginning-of-macro)
		   (looking-at c-cpp-expr-intro-re))
	      'in-cpp-expr)))
  nil)

(defun c-font-lock-<>-arglists (limit)
  ;; This function will be called from font-lock for a region bounded by POINT
  ;; and LIMIT, as though it were to identify a keyword for
  ;; font-lock-keyword-face.  It always returns NIL to inhibit this and
  ;; prevent a repeat invocation.  See elisp/lispref page "Search-based
  ;; Fontification".
  ;;
  ;; Fontify types and references in names containing angle bracket
  ;; arglists from the point to LIMIT.  Note that
  ;; `c-font-lock-declarations' already has handled many of them.
  ;;
  ;; This function might do hidden buffer changes.

  (let (;; The font-lock package in Emacs is known to clobber
	;; `parse-sexp-lookup-properties' (when it exists).
	(parse-sexp-lookup-properties
	 (cc-eval-when-compile
	   (boundp 'parse-sexp-lookup-properties)))
	(c-parse-and-markup-<>-arglists t)
	c-restricted-<>-arglists
	id-start id-end id-face pos kwd-sym)

    (while (and (< (point) limit)
		(re-search-forward c-opt-<>-arglist-start limit t))

      (setq id-start (match-beginning 1)
	    id-end (match-end 1)
	    pos (point))

      (goto-char id-start)
      (unless (c-skip-comments-and-strings limit)
	(setq kwd-sym nil
	      c-restricted-<>-arglists nil
	      id-face (get-text-property id-start 'face))

	(if (cond
	     ((eq id-face 'font-lock-type-face)
	      ;; The identifier got the type face so it has already been
	      ;; handled in `c-font-lock-declarations'.
	      nil)

	     ((eq id-face 'font-lock-keyword-face)
	      (when (looking-at c-opt-<>-sexp-key)
		;; There's a special keyword before the "<" that tells
		;; that it's an angle bracket arglist.
		(setq kwd-sym (c-keyword-sym (match-string 1)))))

	     (t
	      ;; There's a normal identifier before the "<".  If we're not in
	      ;; a declaration context then we set `c-restricted-<>-arglists'
	      ;; to avoid recognizing templates in function calls like "foo (a
	      ;; < b, c > d)".
	      (c-backward-syntactic-ws)
	      (when (and (memq (char-before) '(?\( ?,))
			 (not (eq (get-text-property (1- (point)) 'c-type)
				  'c-decl-arg-start)))
		(setq c-restricted-<>-arglists t))
	      t))

	    (progn
	      (goto-char (1- pos))
	      ;; Check for comment/string both at the identifier and
	      ;; at the "<".
	      (unless (c-skip-comments-and-strings limit)

		(c-fontify-types-and-refs ()
		  (when (c-forward-<>-arglist (c-keyword-member
					       kwd-sym 'c-<>-type-kwds))
		    (when (and c-opt-identifier-concat-key
			       (not (get-text-property id-start 'face)))
		      (c-forward-syntactic-ws)
		      (if (looking-at c-opt-identifier-concat-key)
			  (c-put-font-lock-face id-start id-end
						c-reference-face-name)
			(c-put-font-lock-face id-start id-end
					      'font-lock-type-face)))))

		(goto-char pos)))
	  (goto-char pos)))))
  nil)

(defun c-font-lock-declarators (limit list types)
  ;; Assuming the point is at the start of a declarator in a declaration,
  ;; fontify the identifier it declares.  (If TYPES is set, it does this via
  ;; the macro `c-fontify-types-and-refs'.)
  ;;
  ;; If LIST is non-nil, also fontify the ids in any following declarators in
  ;; a comma separated list (e.g.  "foo" and "*bar" in "int foo = 17, *bar;");
  ;; additionally, mark the commas with c-type property 'c-decl-id-start or
  ;; 'c-decl-type-start (according to TYPES).  Stop at LIMIT.
  ;;
  ;; If TYPES is non-nil, fontify all identifiers as types.
  ;;
  ;; Nil is always returned.  The function leaves point at the delimiter after
  ;; the last declarator it processes.
  ;;
  ;; This function might do hidden buffer changes.

  ;;(message "c-font-lock-declarators from %s to %s" (point) limit)
  (c-fontify-types-and-refs
      ((pos (point)) next-pos id-start id-end
       paren-depth
       id-face got-init
       c-last-identifier-range
       (separator-prop (if types 'c-decl-type-start 'c-decl-id-start)))

    ;; The following `while' fontifies a single declarator id each time round.
    ;; It loops only when LIST is non-nil.
    (while
	;; Inside the following "condition form", we move forward over the
	;; declarator's identifier up as far as any opening bracket (for array
	;; size) or paren (for parameters of function-type) or brace (for
	;; array/struct initialisation) or "=" or terminating delimiter
	;; (e.g. "," or ";" or "}").
	(and
	    pos
	    (< (point) limit)

	    ;; The following form moves forward over the declarator's
	    ;; identifier (and what precedes it), returning t.  If there
	    ;; wasn't one, it returns nil, terminating the `while'.
	    (let (got-identifier)
	      (setq paren-depth 0)
	      ;; Skip over type decl prefix operators, one for each iteration
	      ;; of the while.  These are, e.g. "*" in "int *foo" or "(" and
	      ;; "*" in "int (*foo) (void)" (Note similar code in
	      ;; `c-forward-decl-or-cast-1'.)
	      (while (and (looking-at c-type-decl-prefix-key)
			  (if (and (c-major-mode-is 'c++-mode)
				   (match-beginning 3))
			      ;; If the third submatch matches in C++ then
			      ;; we're looking at an identifier that's a
			      ;; prefix only if it specifies a member pointer.
			      (progn
				(setq id-start (point))
				(c-forward-name)
				(if (looking-at "\\(::\\)")
				    ;; We only check for a trailing "::" and
				    ;; let the "*" that should follow be
				    ;; matched in the next round.
				    t
				  ;; It turned out to be the real identifier,
				  ;; so flag that and stop.
				  (setq got-identifier t)
				  nil))
			    t))
		(if (eq (char-after) ?\()
		    (progn
		      (setq paren-depth (1+ paren-depth))
		      (forward-char))
		  (goto-char (match-end 1)))
		(c-forward-syntactic-ws))

	      ;; If we haven't passed the identifier already, do it now.
	      (unless got-identifier
		(setq id-start (point))
		(c-forward-name))
	      (setq id-end (point))

	      (/= id-end pos))

	    ;; Skip out of the parens surrounding the identifier.  If closing
	    ;; parens are missing, this form returns nil.
	    (or (= paren-depth 0)
		(c-safe (goto-char (scan-lists (point) 1 paren-depth))))

	    (<= (point) limit)

	    ;; Skip over any trailing bit, such as "__attribute__".
	    (progn
	      (when (looking-at c-decl-hangon-key)
		(c-forward-keyword-clause 1))
	      (<= (point) limit))

	    ;; Search syntactically to the end of the declarator (";",
	    ;; ",", a closen paren, eob etc) or to the beginning of an
	    ;; initializer or function prototype ("=" or "\\s\(").
	    ;; Note that the open paren will match array specs in
	    ;; square brackets, and we treat them as initializers too.
	    (c-syntactic-re-search-forward
	     "[;,]\\|\\s)\\|\\'\\|\\(=\\|\\s(\\)" limit t t))

      (setq next-pos (match-beginning 0)
	    id-face (if (eq (char-after next-pos) ?\()
			'font-lock-function-name-face
		      'font-lock-variable-name-face)
	    got-init (and (match-beginning 1)
			  (char-after (match-beginning 1))))

      (if types
	  ;; Register and fontify the identifer as a type.
	  (let ((c-promote-possible-types t))
	    (goto-char id-start)
	    (c-forward-type))
	;; Fontify the last symbol in the identifier if it isn't fontified
	;; already.  The check is necessary only in certain cases where this
	;; function is used "sloppily", e.g. in `c-simple-decl-matchers'.
	(when (and c-last-identifier-range
		   (not (get-text-property (car c-last-identifier-range)
					   'face)))
	  (c-put-font-lock-face (car c-last-identifier-range)
				(cdr c-last-identifier-range)
				id-face)))

      (goto-char next-pos)
      (setq pos nil)	      ; So as to terminate the enclosing `while' form.
      (when list
	;; Jump past any initializer or function prototype to see if
	;; there's a ',' to continue at.
	(cond ((eq id-face 'font-lock-function-name-face)
	       ;; Skip a parenthesized initializer (C++) or a function
	       ;; prototype.
	       (if (c-safe (c-forward-sexp 1) t) ; over the parameter list.
		   (c-forward-syntactic-ws limit)
		 (goto-char limit)))	; unbalanced parens

	      (got-init	; "=" sign OR opening "(", "[", or "{"
	       ;; Skip an initializer expression.  If we're at a '='
	       ;; then accept a brace list directly after it to cope
	       ;; with array initializers.  Otherwise stop at braces
	       ;; to avoid going past full function and class blocks.
	       (and (if (and (eq got-init ?=)
			     (= (c-forward-token-2 1 nil limit) 0)
			     (looking-at "{"))
			(c-safe (c-forward-sexp) t) ; over { .... }
		      t)
		    ;; FIXME: Should look for c-decl-end markers here;
		    ;; we might go far into the following declarations
		    ;; in e.g. ObjC mode (see e.g. methods-4.m).
		    (c-syntactic-re-search-forward "[;,{]" limit 'move t)
		    (backward-char)))

	      (t (c-forward-syntactic-ws limit)))

	;; If a ',' is found we set pos to the next declarator and iterate.
	(when (and (< (point) limit) (looking-at ","))
	  (c-put-char-property (point) 'c-type separator-prop)
	  (forward-char)
	  (c-forward-syntactic-ws limit)
	  (setq pos (point))))))     ; acts to make the `while' form continue.
  nil)

(defconst c-font-lock-maybe-decl-faces
  ;; List of faces that might be put at the start of a type when
  ;; `c-font-lock-declarations' runs.  This needs to be evaluated to
  ;; ensure that face name aliases in Emacs are resolved.
  (list nil
	font-lock-type-face
	c-reference-face-name
	font-lock-keyword-face))

(defun c-font-lock-declarations (limit)
  ;; Fontify all the declarations, casts and labels from the point to LIMIT.
  ;; Assumes that strings and comments have been fontified already.
  ;;
  ;; This function will be called from font-lock for a region bounded by POINT
  ;; and LIMIT, as though it were to identify a keyword for
  ;; font-lock-keyword-face.  It always returns NIL to inhibit this and
  ;; prevent a repeat invocation.  See elisp/lispref page "Search-based
  ;; Fontification".
  ;;
  ;; This function might do hidden buffer changes.

  ;;(message "c-font-lock-declarations search from %s to %s" (point) limit)

  (save-restriction
    (let (;; The position where `c-find-decl-spots' last stopped.
	  start-pos
	  ;; o - 'decl if we're in an arglist containing declarations
	  ;;   (but if `c-recognize-paren-inits' is set it might also be
	  ;;   an initializer arglist);
	  ;; o - '<> if the arglist is of angle bracket type;
	  ;; o - 'arglist if it's some other arglist;
	  ;; o - nil, if not in an arglist at all.  This includes the
	  ;;   parenthesised condition which follows "if", "while", etc.
	  context
	  ;; A list of starting positions of possible type declarations, or of
	  ;; the typedef preceding one, if any.
	  last-cast-end
	  ;; The result from `c-forward-decl-or-cast-1'.
	  decl-or-cast
	  ;; The maximum of the end positions of all the checked type
	  ;; decl expressions in the successfully identified
	  ;; declarations.  The position might be either before or
	  ;; after the syntactic whitespace following the last token
	  ;; in the type decl expression.
	  (max-type-decl-end 0)
	  ;; Same as `max-type-decl-*', but used when we're before
	  ;; `token-pos'.
	  (max-type-decl-end-before-token 0)
	  ;; Set according to the context to direct the heuristics for
	  ;; recognizing C++ templates.
	  c-restricted-<>-arglists
	  ;; Turn on recording of identifier ranges in
	  ;; `c-forward-decl-or-cast-1' and `c-forward-label' for
	  ;; later fontification.
	  (c-record-type-identifiers t)
	  label-type
	  c-record-ref-identifiers
	  ;; Make `c-forward-type' calls mark up template arglists if
	  ;; it finds any.  That's necessary so that we later will
	  ;; stop inside them to fontify types there.
	  (c-parse-and-markup-<>-arglists t)
	  lbrace ; position of some {.
	  ;; The font-lock package in Emacs is known to clobber
	  ;; `parse-sexp-lookup-properties' (when it exists).
	  (parse-sexp-lookup-properties
	   (cc-eval-when-compile
	     (boundp 'parse-sexp-lookup-properties))))

      ;; Below we fontify a whole declaration even when it crosses the limit,
      ;; to avoid gaps when jit/lazy-lock fontifies the file a block at a
      ;; time.  That is however annoying during editing, e.g. the following is
      ;; a common situation while the first line is being written:
      ;;
      ;;     my_variable
      ;;     some_other_variable = 0;
      ;;
      ;; font-lock will put the limit at the beginning of the second line
      ;; here, and if we go past it we'll fontify "my_variable" as a type and
      ;; "some_other_variable" as an identifier, and the latter will not
      ;; correct itself until the second line is changed.  To avoid that we
      ;; narrow to the limit if the region to fontify is a single line.
      (if (<= limit (c-point 'bonl))
	  (narrow-to-region
	   (point-min)
	   (save-excursion
	     ;; Narrow after any operator chars following the limit though,
	     ;; since those characters can be useful in recognizing a
	     ;; declaration (in particular the '{' that opens a function body
	     ;; after the header).
	     (goto-char limit)
	     (skip-chars-forward c-nonsymbol-chars)
	     (point))))

      (c-find-decl-spots
       limit
       c-decl-start-re
       c-font-lock-maybe-decl-faces

       (lambda (match-pos inside-macro)
	 (setq start-pos (point))
	 (when
	  ;; The result of the form below is true when we don't recognize a
	  ;; declaration or cast.
	  (if (or (and (eq (get-text-property (point) 'face)
			   'font-lock-keyword-face)
		       (looking-at c-not-decl-init-keywords))
		  (and c-macro-with-semi-re
		       (looking-at c-macro-with-semi-re))) ; 2008-11-04
	      ;; Don't do anything more if we're looking at a keyword that
	      ;; can't start a declaration.
	      t

	    ;; Set `context' and `c-restricted-<>-arglists'.  Look for
	    ;; "<" for the sake of C++-style template arglists.
	    ;; Ignore "(" when it's part of a control flow construct
	    ;; (e.g. "for (").
	    (let ((type (and (> match-pos (point-min))
			     (c-get-char-property (1- match-pos) 'c-type))))
	      (cond ((not (memq (char-before match-pos) '(?\( ?, ?\[ ?<)))
		     (setq context nil
			   c-restricted-<>-arglists nil))
		    ;; A control flow expression
		    ((and (eq (char-before match-pos) ?\()
			  (save-excursion
			    (goto-char match-pos)
			    (backward-char)
			    (c-backward-token-2)
			    (looking-at c-block-stmt-2-key)))
		     (setq context nil
			   c-restricted-<>-arglists t))
		    ;; Near BOB.
		    ((<= match-pos (point-min))
		     (setq context 'arglist
			   c-restricted-<>-arglists t))
		    ;; Got a cached hit in a declaration arglist.
		    ((eq type 'c-decl-arg-start)
		     (setq context 'decl
			   c-restricted-<>-arglists nil))
		    ;; Inside an angle bracket arglist.
		    ((or (eq type 'c-<>-arg-sep)
			 (eq (char-before match-pos) ?<))
		     (setq context '<>
			   c-restricted-<>-arglists nil))
		    ;; Got a cached hit in some other type of arglist.
		    (type
		     (setq context 'arglist
			   c-restricted-<>-arglists t))
		    ((if inside-macro
			 (< match-pos max-type-decl-end-before-token)
		       (< match-pos max-type-decl-end))
		     ;; The point is within the range of a previously
		     ;; encountered type decl expression, so the arglist
		     ;; is probably one that contains declarations.
		     ;; However, if `c-recognize-paren-inits' is set it
		     ;; might also be an initializer arglist.
		     (setq context 'decl
			   c-restricted-<>-arglists nil)
		     ;; The result of this check is cached with a char
		     ;; property on the match token, so that we can look
		     ;; it up again when refontifying single lines in a
		     ;; multiline declaration.
		     (c-put-char-property (1- match-pos)
					  'c-type 'c-decl-arg-start))
		    (t (setq context 'arglist
			     c-restricted-<>-arglists t))))

	    ;; Check we haven't missed a preceding "typedef".
	    (when (not (looking-at c-typedef-key))
	      (c-backward-syntactic-ws)
	      (c-backward-token-2)
	      (or (looking-at c-typedef-key)
		  (goto-char start-pos)))

	    ;; In QT, "more" is an irritating keyword that expands to nothing.
	    ;; We skip over it to prevent recognition of "more slots: <symbol>"
	    ;; as a bitfield declaration.
	    (when (and (c-major-mode-is 'c++-mode)
		       (looking-at
			(concat "\\(more\\)\\([^" c-symbol-chars "]\\|$\\)")))
	      (goto-char (match-end 1))
	      (c-forward-syntactic-ws))

	    ;; Now analyze the construct.
	    (setq decl-or-cast (c-forward-decl-or-cast-1
				match-pos context last-cast-end))

	    (cond
	     ((eq decl-or-cast 'cast)
	      ;; Save the position after the previous cast so we can feed
	      ;; it to `c-forward-decl-or-cast-1' in the next round.  That
	      ;; helps it discover cast chains like "(a) (b) c".
	      (setq last-cast-end (point))
	      (c-fontify-recorded-types-and-refs)
	      nil)

	     (decl-or-cast
	      ;; We've found a declaration.

	      ;; Set `max-type-decl-end' or `max-type-decl-end-before-token'
	      ;; under the assumption that we're after the first type decl
	      ;; expression in the declaration now.  That's not really true;
	      ;; we could also be after a parenthesized initializer
	      ;; expression in C++, but this is only used as a last resort
	      ;; to slant ambiguous expression/declarations, and overall
	      ;; it's worth the risk to occasionally fontify an expression
	      ;; as a declaration in an initializer expression compared to
	      ;; getting ambiguous things in normal function prototypes
	      ;; fontified as expressions.
	      (if inside-macro
		  (when (> (point) max-type-decl-end-before-token)
		    (setq max-type-decl-end-before-token (point)))
		(when (> (point) max-type-decl-end)
		  (setq max-type-decl-end (point))))

	      ;; Back up to the type to fontify the declarator(s).
	      (goto-char (car decl-or-cast))

	      (let ((decl-list
		     (if context
			 ;; Should normally not fontify a list of
			 ;; declarators inside an arglist, but the first
			 ;; argument in the ';' separated list of a "for"
			 ;; statement is an exception.
			 (when (eq (char-before match-pos) ?\()
			   (save-excursion
			     (goto-char (1- match-pos))
			     (c-backward-syntactic-ws)
			     (and (c-simple-skip-symbol-backward)
				  (looking-at c-paren-stmt-key))))
		       t)))

		;; Fix the `c-decl-id-start' or `c-decl-type-start' property
		;; before the first declarator if it's a list.
		;; `c-font-lock-declarators' handles the rest.
		(when decl-list
		  (save-excursion
		    (c-backward-syntactic-ws)
		    (unless (bobp)
		      (c-put-char-property (1- (point)) 'c-type
					   (if (cdr decl-or-cast)
					       'c-decl-type-start
					     'c-decl-id-start)))))

		(c-font-lock-declarators
		 (point-max) decl-list (cdr decl-or-cast)))

	      ;; A declaration has been successfully identified, so do all the
	      ;; fontification of types and refs that've been recorded.
	      (c-fontify-recorded-types-and-refs)
	      nil)

	     ;; Restore point, since at this point in the code it has been
	     ;; left undefined by c-forward-decl-or-cast-1 above.
	     ((progn (goto-char start-pos) nil))

	     ;; If point is inside a bracelist, there's no point checking it
	     ;; being at a declarator.
	     ((let ((paren-state (c-parse-state)))
		(setq lbrace (c-cheap-inside-bracelist-p paren-state)))
	      ;; Move past this bracelist to prevent an endless loop.
	      (goto-char lbrace)
	      (unless (c-safe (progn (forward-list) t))
		(goto-char start-pos)
		(c-forward-token-2))
	      nil)

	     ;; If point is just after a ")" which is followed by an
	     ;; identifier which isn't a label, or at the matching "(", we're
	     ;; at either a macro invocation, a cast, or a
	     ;; for/while/etc. statement.  The cast case is handled above.
	     ;; None of these cases can contain a declarator.
	     ((or (and (eq (char-before match-pos) ?\))
	     	       (c-on-identifier)
	     	       (save-excursion (not (c-forward-label))))
	     	  (and (eq (char-after) ?\()
	     	       (save-excursion
	     		 (and
	     		  (progn (c-backward-token-2) (c-on-identifier))
	     		  (save-excursion (not (c-forward-label)))
	     		  (progn (c-backward-token-2)
	     			 (eq (char-after) ?\())))))
	      (c-forward-token-2)	; Must prevent looping.
	      nil)

	     ((and (not c-enums-contain-decls)
		   ;; An optimisation quickly to eliminate scans of long enum
		   ;; declarations in the next cond arm.
		   (let ((paren-state (c-parse-state)))
		     (and
		      (numberp (car paren-state))
		      (save-excursion
			(goto-char (car paren-state))
			(c-backward-token-2)
			(or (looking-at c-brace-list-key)
			    (progn
			      (c-backward-token-2)
			      (looking-at c-brace-list-key)))))))
	      (c-forward-token-2)
	      nil)

	     (t
	      ;; Are we at a declarator?  Try to go back to the declaration
	      ;; to check this.  If we get there, check whether a "typedef"
	      ;; is there, then fontify the declarators accordingly.
	      (let ((decl-search-lim (c-determine-limit 1000))
		    paren-state bod-res encl-pos is-typedef 
		    c-recognize-knr-p) ; Strictly speaking, bogus, but it
				       ; speeds up lisp.h tremendously.
		(save-excursion
		  (unless (or (eobp)
			      (looking-at "\\s(\\|\\s)"))
		    (forward-char))
		  (setq bod-res (car (c-beginning-of-decl-1 decl-search-lim)))
		  (if (and (eq bod-res 'same)
			   (progn
			     (c-backward-syntactic-ws)
			     (eq (char-before) ?\})))
		      (c-beginning-of-decl-1 decl-search-lim))

		  ;; We're now putatively at the declaration.
		  (setq paren-state (c-parse-state))
		  ;; At top level or inside a "{"?
		  (if (or (not (setq encl-pos
				     (c-most-enclosing-brace paren-state)))
			  (eq (char-after encl-pos) ?\{))
		      (progn
			(when (looking-at c-typedef-key) ; "typedef"
			  (setq is-typedef t)
			  (goto-char (match-end 0))
			  (c-forward-syntactic-ws))
			;; At a real declaration?
			(if (memq (c-forward-type t) '(t known found))
			    (progn
			      (c-font-lock-declarators limit t is-typedef)
			      nil)
			  ;; False alarm.  Return t to go on to the next check.
			  (goto-char start-pos)
			  t))
		    t))))))

	  ;; It was a false alarm.  Check if we're in a label (or other
	  ;; construct with `:' except bitfield) instead.
	  (goto-char start-pos)
	  (when (setq label-type (c-forward-label t match-pos nil))
	    ;; Can't use `c-fontify-types-and-refs' here since we
	    ;; use the label face at times.
	    (cond ((eq label-type 'goto-target)
		   (c-put-font-lock-face (caar c-record-ref-identifiers)
					 (cdar c-record-ref-identifiers)
					 c-label-face-name))
		  ((eq label-type 'qt-1kwd-colon)
		   (c-put-font-lock-face (caar c-record-ref-identifiers)
					 (cdar c-record-ref-identifiers)
					 'font-lock-keyword-face))
		  ((eq label-type 'qt-2kwds-colon)
		   (mapc
		    (lambda (kwd)
		      (c-put-font-lock-face (car kwd) (cdr kwd)
					    'font-lock-keyword-face))
		    c-record-ref-identifiers)))
	    (setq c-record-ref-identifiers nil)
	    ;; `c-forward-label' has probably added a `c-decl-end'
	    ;; marker, so return t to `c-find-decl-spots' to signal
	    ;; that.
	    t))))

      nil)))

(defun c-font-lock-enum-tail (limit)
  ;; Fontify an enum's identifiers when POINT is within the enum's brace
  ;; block.
  ;;
  ;; This function will be called from font-lock for a region bounded by POINT
  ;; and LIMIT, as though it were to identify a keyword for
  ;; font-lock-keyword-face.  It always returns NIL to inhibit this and
  ;; prevent a repeat invocation.  See elisp/lispref page "Search-based
  ;; Fontification".
  ;;
  ;; Note that this function won't attempt to fontify beyond the end of the
  ;; current enum block, if any.
  (let* ((paren-state (c-parse-state))
	 (encl-pos (c-most-enclosing-brace paren-state)))
    (when (and
	   encl-pos
	   (eq (char-after encl-pos) ?\{)
	   (save-excursion
	     (goto-char encl-pos)
	     (c-backward-syntactic-ws)
	     (c-simple-skip-symbol-backward)
	     (or (looking-at c-brace-list-key) ; "enum"
		 (progn (c-backward-syntactic-ws)
			(c-simple-skip-symbol-backward)
			(looking-at c-brace-list-key)))))
      (c-syntactic-skip-backward "^{," nil t)
      (c-put-char-property (1- (point)) 'c-type 'c-decl-id-start)

      (c-forward-syntactic-ws)
      (c-font-lock-declarators limit t nil)))
  nil)

(defun c-font-lock-enclosing-decls (limit)
  ;; Fontify the declarators of (nested) declarations we're in the middle of.
  ;; This is mainly for when a jit-lock etc. chunk starts inside the brace
  ;; block of a struct/union/class, etc.
  ;; 
  ;; This function will be called from font-lock for a region bounded by POINT
  ;; and LIMIT, as though it were to identify a keyword for
  ;; font-lock-keyword-face.  It always returns NIL to inhibit this and
  ;; prevent a repeat invocation.  See elisp/lispref page "Search-based
  ;; Fontification".
  (let* ((paren-state (c-parse-state))
	 decl-context in-typedef ps-elt)
    ;; Are we in any nested struct/union/class/etc. braces?
    (while paren-state
      (setq ps-elt (car paren-state)
	    paren-state (cdr paren-state))
      (when (and (atom ps-elt)
		 (eq (char-after ps-elt) ?\{))
	(goto-char ps-elt)
	(setq decl-context (c-beginning-of-decl-1)
	      in-typedef (looking-at c-typedef-key))
	(if in-typedef (c-forward-token-2))
	(when (and c-opt-block-decls-with-vars-key
		   (looking-at c-opt-block-decls-with-vars-key))
	  (goto-char ps-elt)
	  (when (c-safe (c-forward-sexp))
	    (c-forward-syntactic-ws)
	    (c-font-lock-declarators limit t in-typedef)))))))
	
(c-lang-defconst c-simple-decl-matchers
  "Simple font lock matchers for types and declarations.  These are used
on level 2 only and so aren't combined with `c-complex-decl-matchers'."

  t `(;; Objective-C methods.
      ,@(when (c-major-mode-is 'objc-mode)
	  `((,(c-lang-const c-opt-method-key)
	     (,(byte-compile
		(lambda (limit)
		  (let (;; The font-lock package in Emacs is known to clobber
			;; `parse-sexp-lookup-properties' (when it exists).
			(parse-sexp-lookup-properties
			 (cc-eval-when-compile
			   (boundp 'parse-sexp-lookup-properties))))
		    (save-restriction
		      (narrow-to-region (point-min) limit)
		      (c-font-lock-objc-method)))
		  nil))
	      (goto-char (match-end 1))))))

      ;; Fontify all type names and the identifiers in the
      ;; declarations they might start.  Use eval here since
      ;; `c-known-type-key' gets its value from
      ;; `*-font-lock-extra-types' on mode init.
      (eval . (list ,(c-make-font-lock-search-function
		      'c-known-type-key
		      '(1 'font-lock-type-face t)
		      '((c-font-lock-declarators limit t nil)
			(save-match-data
			  (goto-char (match-end 1))
			  (c-forward-syntactic-ws))
			(goto-char (match-end 1))))))

      ;; Fontify types preceded by `c-type-prefix-kwds' and the
      ;; identifiers in the declarations they might start.
      ,@(when (c-lang-const c-type-prefix-kwds)
	  (let* ((prefix-re (c-make-keywords-re nil
			      (c-lang-const c-type-prefix-kwds)))
		 (type-match (+ 2
				(regexp-opt-depth prefix-re)
				(c-lang-const c-simple-ws-depth))))
	    `((,(c-make-font-lock-search-function
		 (concat "\\<\\(" prefix-re "\\)" ; 1
			 (c-lang-const c-simple-ws) "+"
			 (concat "\\("	; 2 + prefix-re + c-simple-ws
				 (c-lang-const c-symbol-key)
				 "\\)"))
		 `(,type-match
		   'font-lock-type-face t)
		 `((c-font-lock-declarators limit t nil)
		   (save-match-data
		     (goto-char (match-end ,type-match))
		     (c-forward-syntactic-ws))
		   (goto-char (match-end ,type-match))))))))

      ;; Fontify special declarations that lacks a type.
      ,@(when (c-lang-const c-typeless-decl-kwds)
	  `((,(c-make-font-lock-search-function
	       (concat "\\<\\("
		       (regexp-opt (c-lang-const c-typeless-decl-kwds))
		       "\\)\\>")
	       '((c-font-lock-declarators limit t nil)
		 (save-match-data
		   (goto-char (match-end 1))
		   (c-forward-syntactic-ws))
		 (goto-char (match-end 1)))))))

      ;; Fontify generic colon labels in languages that support them.
      ,@(when (c-lang-const c-recognize-colon-labels)
	  `(c-font-lock-labels))))

(c-lang-defconst c-complex-decl-matchers
  "Complex font lock matchers for types and declarations.  Used on level
3 and higher."

  ;; Note: This code in this form dumps a number of functions into the
  ;; resulting constant, `c-matchers-3'.  At run time, font lock will call
  ;; each of them as a "FUNCTION" (see Elisp page "Search-based
  ;; Fontification").  The font lock region is delimited by POINT and the
  ;; single parameter, LIMIT.  Each of these functions returns NIL (thus
  ;; inhibiting spurious font-lock-keyword-face highlighting and another
  ;; call).

  t `(;; Initialize some things before the search functions below.
      c-font-lock-complex-decl-prepare

      ,@(if (c-major-mode-is 'objc-mode)
	    ;; Fontify method declarations in Objective-C, but first
	    ;; we have to put the `c-decl-end' `c-type' property on
	    ;; all the @-style directives that haven't been handled in
	    ;; `c-basic-matchers-before'.
	    `(,(c-make-font-lock-search-function
		(c-make-keywords-re t
		  ;; Exclude "@class" since that directive ends with a
		  ;; semicolon anyway.
		  (delete "@class"
			  (append (c-lang-const c-protection-kwds)
				  (c-lang-const c-other-decl-kwds)
				  nil)))
		'((c-put-char-property (1- (match-end 1))
				       'c-type 'c-decl-end)))
	      c-font-lock-objc-methods))

      ;; Fontify all declarations, casts and normal labels.
      c-font-lock-declarations

      ;; Fontify declarators when POINT is within their declaration.
      c-font-lock-enclosing-decls

      ;; Fontify angle bracket arglists like templates in C++.
      ,@(when (c-lang-const c-recognize-<>-arglists)
	  `(c-font-lock-<>-arglists))

      ;; The first two rules here mostly find occurences that
      ;; `c-font-lock-declarations' has found already, but not
      ;; declarations containing blocks in the type (see note below).
      ;; It's also useful to fontify these everywhere to show e.g. when
      ;; a type keyword is accidentally used as an identifier.

      ;; Fontify basic types.
      ,(let ((re (c-make-keywords-re nil
		   (c-lang-const c-primitive-type-kwds))))
	 (if (c-major-mode-is 'pike-mode)
	     ;; No symbol is a keyword after "->" in Pike.
	     `(,(concat "\\(\\=.?\\|[^>]\\|[^-]>\\)"
			"\\<\\(" re "\\)\\>")
	       2 font-lock-type-face)
	   `(,(concat "\\<\\(" re "\\)\\>")
	     1 'font-lock-type-face)))

      ;; Fontify types preceded by `c-type-prefix-kwds' (e.g. "struct").
      ,@(when (c-lang-const c-type-prefix-kwds)
	  `((,(byte-compile
	       `(lambda (limit)
		  (c-fontify-types-and-refs
		      ((c-promote-possible-types t)
		       ;; The font-lock package in Emacs is known to clobber
		       ;; `parse-sexp-lookup-properties' (when it exists).
		       (parse-sexp-lookup-properties
			(cc-eval-when-compile
			  (boundp 'parse-sexp-lookup-properties))))
		    (save-restriction
		      ;; Narrow to avoid going past the limit in
		      ;; `c-forward-type'.
		      (narrow-to-region (point) limit)
		      (while (re-search-forward
			      ,(concat "\\<\\("
				       (c-make-keywords-re nil
					 (c-lang-const c-type-prefix-kwds))
				       "\\)\\>")
			      limit t)
			(unless (c-skip-comments-and-strings limit)
			  (c-forward-syntactic-ws)
			  ;; Handle prefix declaration specifiers.
			  (when (or (looking-at c-prefix-spec-kwds-re)
				    (and (c-major-mode-is 'java-mode)
					 (looking-at "@[A-Za-z0-9]+")))
			    (c-forward-keyword-clause 1))
			  ,(if (c-major-mode-is 'c++-mode)
			       `(when (and (c-forward-type)
					   (eq (char-after) ?=))
				  ;; In C++ we additionally check for a "class
				  ;; X = Y" construct which is used in
				  ;; templates, to fontify Y as a type.
				  (forward-char)
				  (c-forward-syntactic-ws)
				  (c-forward-type))
			     `(c-forward-type))
			  )))))))))

      ;; Fontify symbols after closing braces as declaration
      ;; identifiers under the assumption that they are part of
      ;; declarations like "class Foo { ... } foo;".  It's too
      ;; expensive to check this accurately by skipping past the
      ;; brace block, so we use the heuristic that it's such a
      ;; declaration if the first identifier is on the same line as
      ;; the closing brace.  `c-font-lock-declarations' will later
      ;; override it if it turns out to be an new declaration, but
      ;; it will be wrong if it's an expression (see the test
      ;; decls-8.cc).
;;       ,@(when (c-lang-const c-opt-block-decls-with-vars-key)
;; 	  `((,(c-make-font-lock-search-function
;; 	       (concat "}"
;; 		       (c-lang-const c-single-line-syntactic-ws)
;; 		       "\\("		; 1 + c-single-line-syntactic-ws-depth
;; 		       (c-lang-const c-type-decl-prefix-key)
;; 		       "\\|"
;; 		       (c-lang-const c-symbol-key)
;; 		       "\\)")
;; 	       `((c-font-lock-declarators limit t nil) ; That `nil' says use `font-lock-variable-name-face';
;; 					; `t' would mean `font-lock-function-name-face'.
;; 		 (progn
;; 		   (c-put-char-property (match-beginning 0) 'c-type
;; 					'c-decl-id-start)
;; ;					'c-decl-type-start)
;; 		   (goto-char (match-beginning
;; 			       ,(1+ (c-lang-const
;; 				     c-single-line-syntactic-ws-depth)))))
;; 		 (goto-char (match-end 0)))))))

      ;; Fontify the type in C++ "new" expressions.
      ,@(when (c-major-mode-is 'c++-mode)
	  ;; This pattern is a probably a "(MATCHER . ANCHORED-HIGHLIGHTER)"
	  ;; (see Elisp page "Search-based Fontification").
	  `(("\\<new\\>"
	     (c-font-lock-c++-new))))
      ))

(defun c-font-lock-labels (limit)
  ;; Fontify all statement labels from the point to LIMIT.  Assumes
  ;; that strings and comments have been fontified already.  Nil is
  ;; always returned.
  ;;
  ;; Note: This function is only used on decoration level 2; this is
  ;; taken care of directly by the gargantuan
  ;; `c-font-lock-declarations' on higher levels.
  ;;
  ;; This function might do hidden buffer changes.

  (let (continue-pos id-start
	;; The font-lock package in Emacs is known to clobber
	;; `parse-sexp-lookup-properties' (when it exists).
	(parse-sexp-lookup-properties
	 (cc-eval-when-compile
	   (boundp 'parse-sexp-lookup-properties))))

    (while (re-search-forward ":[^:]" limit t)
      (setq continue-pos (point))
      (goto-char (match-beginning 0))
      (unless (c-skip-comments-and-strings limit)

	(c-backward-syntactic-ws)
	(and (setq id-start (c-on-identifier))

	     (not (get-text-property id-start 'face))

	     (progn
	       (goto-char id-start)
	       (c-backward-syntactic-ws)
	       (or
		;; Check for a char that precedes a statement.
		(memq (char-before) '(?\} ?\{ ?\;))
		;; Check for a preceding label.  We exploit the font
		;; locking made earlier by this function.
		(and (eq (char-before) ?:)
		     (progn
		       (backward-char)
		       (c-backward-syntactic-ws)
		       (not (bobp)))
		     (eq (get-text-property (1- (point)) 'face)
			 c-label-face-name))
		;; Check for a keyword that precedes a statement.
		(c-after-conditional)))

	     (progn
	       ;; Got a label.
	       (goto-char id-start)
	       (looking-at c-symbol-key)
	       (c-put-font-lock-face (match-beginning 0) (match-end 0)
				     c-label-face-name)))

	(goto-char continue-pos))))
  nil)

(c-lang-defconst c-basic-matchers-after
  "Font lock matchers for various things that should be fontified after
generic casts and declarations are fontified.  Used on level 2 and
higher."

  t `(,@(when (c-lang-const c-brace-id-list-kwds)
      ;; Fontify the remaining identifiers inside an enum list when we start
      ;; inside it.
	  `(c-font-lock-enum-tail
      ;; Fontify the identifiers inside enum lists.  (The enum type
      ;; name is handled by `c-simple-decl-matchers' or
      ;; `c-complex-decl-matchers' below.
	    (,(c-make-font-lock-search-function
	       (concat
		"\\<\\("
		(c-make-keywords-re nil (c-lang-const c-brace-id-list-kwds))
		"\\)\\>"
		;; Disallow various common punctuation chars that can't come
		;; before the '{' of the enum list, to avoid searching too far.
		"[^\]\[{}();,/#=]*"
		"{")
	       '((c-font-lock-declarators limit t nil)
		 (save-match-data
		   (goto-char (match-end 0))
		   (c-put-char-property (1- (point)) 'c-type
					'c-decl-id-start)
		   (c-forward-syntactic-ws))
		 (goto-char (match-end 0)))))))

	;; Fontify labels after goto etc.
	,@(when (c-lang-const c-before-label-kwds)
	  `(;; (Got three different interpretation levels here,
	    ;; which makes it a bit complicated: 1) The backquote
	    ;; stuff is expanded when compiled or loaded, 2) the
	    ;; eval form is evaluated at font-lock setup (to
	    ;; substitute c-label-face-name correctly), and 3) the
	    ;; resulting structure is interpreted during
	    ;; fontification.)
	    (eval
	     . ,(let* ((c-before-label-re
			(c-make-keywords-re nil
			  (c-lang-const c-before-label-kwds))))
		  `(list
		    ,(concat "\\<\\(" c-before-label-re "\\)\\>"
			     "\\s *"
			     "\\("	; identifier-offset
			     (c-lang-const c-symbol-key)
			     "\\)")
		    (list ,(+ (regexp-opt-depth c-before-label-re) 2)
			  c-label-face-name nil t))))))

      ;; Fontify the clauses after various keywords.
	,@(when (or (c-lang-const c-type-list-kwds)
		    (c-lang-const c-ref-list-kwds)
		    (c-lang-const c-colon-type-list-kwds))
	    `((,(c-make-font-lock-BO-decl-search-function
		 (concat "\\<\\("
			 (c-make-keywords-re nil
			   (append (c-lang-const c-type-list-kwds)
				   (c-lang-const c-ref-list-kwds)
				   (c-lang-const c-colon-type-list-kwds)))
			 "\\)\\>")
		 '((c-fontify-types-and-refs ((c-promote-possible-types t))
		     (c-forward-keyword-clause 1)
		     (if (> (point) limit) (goto-char limit))))))))

	,@(when (c-lang-const c-paren-type-kwds)
	    `((,(c-make-font-lock-search-function
		 (concat "\\<\\("
			 (c-make-keywords-re nil
			   (c-lang-const c-paren-type-kwds))
			 "\\)\\>")
		 '((c-fontify-types-and-refs ((c-promote-possible-types t))
		     (c-forward-keyword-clause 1)
		     (if (> (point) limit) (goto-char limit))))))))))

(c-lang-defconst c-matchers-1
  t (c-lang-const c-cpp-matchers))

(c-lang-defconst c-matchers-2
  t (append (c-lang-const c-matchers-1)
	    (c-lang-const c-basic-matchers-before)
	    (c-lang-const c-simple-decl-matchers)
	    (c-lang-const c-basic-matchers-after)))

(c-lang-defconst c-matchers-3
  t (append (c-lang-const c-matchers-1)
	    (c-lang-const c-basic-matchers-before)
	    (c-lang-const c-complex-decl-matchers)
	    (c-lang-const c-basic-matchers-after)))

(defun c-compose-keywords-list (base-list)
  ;; Incorporate the font lock keyword lists according to
  ;; `c-doc-comment-style' on the given keyword list and return it.
  ;; This is used in the function bindings of the
  ;; `*-font-lock-keywords-*' symbols since we have to build the list
  ;; when font-lock is initialized.

  (unless (memq c-doc-face-name c-literal-faces)
    (setq c-literal-faces (cons c-doc-face-name c-literal-faces)))

  (let* ((doc-keywords
	  (if (consp (car-safe c-doc-comment-style))
	      (cdr-safe (or (assq c-buffer-is-cc-mode c-doc-comment-style)
			    (assq 'other c-doc-comment-style)))
	    c-doc-comment-style))
	 (list (nconc (apply 'nconc
			     (mapcar
			      (lambda (doc-style)
				(let ((sym (intern
					    (concat (symbol-name doc-style)
						    "-font-lock-keywords"))))
				  (cond ((fboundp sym)
					 (funcall sym))
					((boundp sym)
					 (append (eval sym) nil)))))
			      (if (listp doc-keywords)
				  doc-keywords
				(list doc-keywords))))
		      base-list)))

    ;; Kludge: If `c-font-lock-complex-decl-prepare' is on the list we
    ;; move it first since the doc comment font lockers might add
    ;; `c-type' text properties, so they have to be cleared before that.
    (when (memq 'c-font-lock-complex-decl-prepare list)
      (setq list (cons 'c-font-lock-complex-decl-prepare
		       (delq 'c-font-lock-complex-decl-prepare
			     (append list nil)))))

    list))

(defun c-override-default-keywords (def-var)
  ;; This is used to override the value on a `*-font-lock-keywords'
  ;; variable only if it's nil or has the same value as one of the
  ;; `*-font-lock-keywords-*' variables.  Older font-lock packages
  ;; define a default value for `*-font-lock-keywords' which we want
  ;; to override, but we should otoh avoid clobbering a user setting.
  ;; This heuristic for that isn't perfect, but I can't think of any
  ;; better. /mast
  (when (and (boundp def-var)
	     (memq (symbol-value def-var)
		   (cons nil
			 (mapcar
			  (lambda (suffix)
			    (let ((sym (intern (concat (symbol-name def-var)
						       suffix))))
			      (and (boundp sym) (symbol-value sym))))
			  '("-1" "-2" "-3")))))
    ;; The overriding is done by unbinding the variable so that the normal
    ;; defvar will install its default value later on.
    (makunbound def-var)))


;;; C.

(c-override-default-keywords 'c-font-lock-keywords)

(defconst c-font-lock-keywords-1 (c-lang-const c-matchers-1 c)
  "Minimal font locking for C mode.
Fontifies only preprocessor directives (in addition to the syntactic
fontification of strings and comments).")

(defconst c-font-lock-keywords-2 (c-lang-const c-matchers-2 c)
  "Fast normal font locking for C mode.
In addition to `c-font-lock-keywords-1', this adds fontification of
keywords, simple types, declarations that are easy to recognize, the
user defined types on `c-font-lock-extra-types', and the doc comment
styles specified by `c-doc-comment-style'.")

(defconst c-font-lock-keywords-3 (c-lang-const c-matchers-3 c)
  "Accurate normal font locking for C mode.
Like `c-font-lock-keywords-2' but detects declarations in a more
accurate way that works in most cases for arbitrary types without the
need for `c-font-lock-extra-types'.")

(defvar c-font-lock-keywords c-font-lock-keywords-3
  "Default expressions to highlight in C mode.")

(defun c-font-lock-keywords-2 ()
  (c-compose-keywords-list c-font-lock-keywords-2))
(defun c-font-lock-keywords-3 ()
  (c-compose-keywords-list c-font-lock-keywords-3))
(defun c-font-lock-keywords ()
  (c-compose-keywords-list c-font-lock-keywords))


;;; C++.

(defun c-font-lock-c++-new (limit)
  ;; FIXME!!!  Put in a comment about the context of this function's
  ;; invocation.  I think it's called as an ANCHORED-MATCHER within an
  ;; ANCHORED-HIGHLIGHTER.  (2007/2/10).
  ;;
  ;; Assuming point is after a "new" word, check that it isn't inside
  ;; a string or comment, and if so try to fontify the type in the
  ;; allocation expression.  Nil is always returned.
  ;;
  ;; As usual, C++ takes the prize in coming up with a hard to parse
  ;; syntax. :P
  ;;
  ;; This function might do hidden buffer changes.

  (unless (c-skip-comments-and-strings limit)
    (save-excursion
      (catch 'false-alarm
	;; A "new" keyword is followed by one to three expressions, where
	;; the type is the middle one, and the only required part.
	(let (expr1-pos expr2-pos
	      ;; Enable recording of identifier ranges in `c-forward-type'
	      ;; etc for later fontification.  Not using
	      ;; `c-fontify-types-and-refs' here since the ranges should
	      ;; be fontified selectively only when an allocation
	      ;; expression is successfully recognized.
	      (c-record-type-identifiers t)
	      c-record-ref-identifiers
	      ;; The font-lock package in Emacs is known to clobber
	      ;; `parse-sexp-lookup-properties' (when it exists).
	      (parse-sexp-lookup-properties
	       (cc-eval-when-compile
		 (boundp 'parse-sexp-lookup-properties))))
	  (c-forward-syntactic-ws)

	  ;; The first placement arglist is always parenthesized, if it
	  ;; exists.
	  (when (eq (char-after) ?\()
	    (setq expr1-pos (1+ (point)))
	    (condition-case nil
		(c-forward-sexp)
	      (scan-error (throw 'false-alarm t)))
	    (c-forward-syntactic-ws))

	  ;; The second expression is either a type followed by some "*" or
	  ;; "[...]" or similar, or a parenthesized type followed by a full
	  ;; identifierless declarator.
	  (setq expr2-pos (1+ (point)))
	  (cond ((eq (char-after) ?\())
		((let ((c-promote-possible-types t))
		   (c-forward-type)))
		(t (setq expr2-pos nil)))

	  (when expr1-pos
	    (cond
	     ((not expr2-pos)
	      ;; No second expression, so the first has to be a
	      ;; parenthesized type.
	      (goto-char expr1-pos)
	      (let ((c-promote-possible-types t))
		(c-forward-type)))

	     ((eq (char-before expr2-pos) ?\()
	      ;; Got two parenthesized expressions, so we have to look
	      ;; closer at them to decide which is the type.  No need to
	      ;; handle `c-record-ref-identifiers' since all references
	      ;; has already been handled by other fontification rules.
	      (let (expr1-res expr2-res)

		(goto-char expr1-pos)
		(when (setq expr1-res (c-forward-type))
		  (unless (looking-at
			   (cc-eval-when-compile
			     (concat (c-lang-const c-symbol-start c++)
				     "\\|[*:\)\[]")))
		    ;; There's something after the would-be type that
		    ;; can't be there, so this is a placement arglist.
		    (setq expr1-res nil)))

		(goto-char expr2-pos)
		(when (setq expr2-res (c-forward-type))
		  (unless (looking-at
			   (cc-eval-when-compile
			     (concat (c-lang-const c-symbol-start c++)
				     "\\|[*:\)\[]")))
		    ;; There's something after the would-be type that can't
		    ;; be there, so this is an initialization expression.
		    (setq expr2-res nil))
		  (when (and (c-go-up-list-forward)
			     (progn (c-forward-syntactic-ws)
				    (eq (char-after) ?\()))
		    ;; If there's a third initialization expression
		    ;; then the second one is the type, so demote the
		    ;; first match.
		    (setq expr1-res nil)))

		;; We fontify the most likely type, with a preference for
		;; the first argument since a placement arglist is more
		;; unusual than an initializer.
		(cond ((memq expr1-res '(t known prefix)))
		      ((memq expr2-res '(t known prefix)))
		      ((eq expr1-res 'found)
		       (let ((c-promote-possible-types t))
			 (goto-char expr1-pos)
			 (c-forward-type)))
		      ((eq expr2-res 'found)
		       (let ((c-promote-possible-types t))
			 (goto-char expr2-pos)
			 (c-forward-type)))
		      ((and (eq expr1-res 'maybe) (not expr2-res))
		       (let ((c-promote-possible-types t))
			 (goto-char expr1-pos)
			 (c-forward-type)))
		      ((and (not expr1-res) (eq expr2-res 'maybe))
		       (let ((c-promote-possible-types t))
			 (goto-char expr2-pos)
			 (c-forward-type)))
		      ;; If both type matches are 'maybe then we're
		      ;; too uncertain to promote either of them.
		      )))))

	  ;; Fontify the type that now is recorded in
	  ;; `c-record-type-identifiers', if any.
	  (c-fontify-recorded-types-and-refs)))))
  nil)

(c-override-default-keywords 'c++-font-lock-keywords)

(defconst c++-font-lock-keywords-1 (c-lang-const c-matchers-1 c++)
  "Minimal font locking for C++ mode.
Fontifies only preprocessor directives (in addition to the syntactic
fontification of strings and comments).")

(defconst c++-font-lock-keywords-2 (c-lang-const c-matchers-2 c++)
  "Fast normal font locking for C++ mode.
In addition to `c++-font-lock-keywords-1', this adds fontification of
keywords, simple types, declarations that are easy to recognize, the
user defined types on `c++-font-lock-extra-types', and the doc comment
styles specified by `c-doc-comment-style'.")

(defconst c++-font-lock-keywords-3 (c-lang-const c-matchers-3 c++)
  "Accurate normal font locking for C++ mode.
Like `c++-font-lock-keywords-2' but detects declarations in a more
accurate way that works in most cases for arbitrary types without the
need for `c++-font-lock-extra-types'.")

(defvar c++-font-lock-keywords c++-font-lock-keywords-3
  "Default expressions to highlight in C++ mode.")

(defun c++-font-lock-keywords-2 ()
  (c-compose-keywords-list c++-font-lock-keywords-2))
(defun c++-font-lock-keywords-3 ()
  (c-compose-keywords-list c++-font-lock-keywords-3))
(defun c++-font-lock-keywords ()
  (c-compose-keywords-list c++-font-lock-keywords))


;;; Objective-C.

(defun c-font-lock-objc-method ()
  ;; Assuming the point is after the + or - that starts an Objective-C
  ;; method declaration, fontify it.  This must be done before normal
  ;; casts, declarations and labels are fontified since they will get
  ;; false matches in these things.
  ;;
  ;; This function might do hidden buffer changes.

  (c-fontify-types-and-refs
      ((first t)
       (c-promote-possible-types t))

    (while (and
	    (progn
	      (c-forward-syntactic-ws)

	      ;; An optional method type.
	      (if (eq (char-after) ?\()
		  (progn
		    (forward-char)
		    (c-forward-syntactic-ws)
		    (c-forward-type)
		    (prog1 (c-go-up-list-forward)
		      (c-forward-syntactic-ws)))
		t))

	    ;; The name.  The first time it's the first part of
	    ;; the function name, the rest of the time it's an
	    ;; argument name.
	    (looking-at c-symbol-key)
	    (progn
	      (goto-char (match-end 0))
	      (c-put-font-lock-face (match-beginning 0)
				    (point)
				    (if first
					'font-lock-function-name-face
				      'font-lock-variable-name-face))
	      (c-forward-syntactic-ws)

	      ;; Another optional part of the function name.
	      (when (looking-at c-symbol-key)
		(goto-char (match-end 0))
		(c-put-font-lock-face (match-beginning 0)
				      (point)
				      'font-lock-function-name-face)
		(c-forward-syntactic-ws))

	      ;; There's another argument if a colon follows.
	      (eq (char-after) ?:)))
      (forward-char)
      (setq first nil))))

(defun c-font-lock-objc-methods (limit)
  ;; Fontify method declarations in Objective-C.  Nil is always
  ;; returned.
  ;;
  ;; This function might do hidden buffer changes.

  (let (;; The font-lock package in Emacs is known to clobber
	;; `parse-sexp-lookup-properties' (when it exists).
	(parse-sexp-lookup-properties
	 (cc-eval-when-compile
	   (boundp 'parse-sexp-lookup-properties))))

    (c-find-decl-spots
     limit
     "[-+]"
     nil
     (lambda (match-pos inside-macro)
       (forward-char)
       (c-font-lock-objc-method))))
  nil)

(c-override-default-keywords 'objc-font-lock-keywords)

(defconst objc-font-lock-keywords-1 (c-lang-const c-matchers-1 objc)
  "Minimal font locking for Objective-C mode.
Fontifies only compiler directives (in addition to the syntactic
fontification of strings and comments).")

(defconst objc-font-lock-keywords-2 (c-lang-const c-matchers-2 objc)
  "Fast normal font locking for Objective-C mode.
In addition to `objc-font-lock-keywords-1', this adds fontification of
keywords, simple types, declarations that are easy to recognize, the
user defined types on `objc-font-lock-extra-types', and the doc
comment styles specified by `c-doc-comment-style'.")

(defconst objc-font-lock-keywords-3 (c-lang-const c-matchers-3 objc)
  "Accurate normal font locking for Objective-C mode.
Like `objc-font-lock-keywords-2' but detects declarations in a more
accurate way that works in most cases for arbitrary types without the
need for `objc-font-lock-extra-types'.")

(defvar objc-font-lock-keywords objc-font-lock-keywords-3
  "Default expressions to highlight in Objective-C mode.")

(defun objc-font-lock-keywords-2 ()
  (c-compose-keywords-list objc-font-lock-keywords-2))
(defun objc-font-lock-keywords-3 ()
  (c-compose-keywords-list objc-font-lock-keywords-3))
(defun objc-font-lock-keywords ()
  (c-compose-keywords-list objc-font-lock-keywords))

;; Kludge to override the default value that
;; `objc-font-lock-extra-types' might have gotten from the font-lock
;; package.  The value replaced here isn't relevant now anyway since
;; those types are builtin and therefore listed directly in
;; `c-primitive-type-kwds'.
(when (equal (sort (append objc-font-lock-extra-types nil) 'string-lessp)
	     '("BOOL" "Class" "IMP" "SEL"))
  (setq objc-font-lock-extra-types
	(cc-eval-when-compile (list (concat "[" c-upper "]\\sw*")))))


;;; Java.

(c-override-default-keywords 'java-font-lock-keywords)

(defconst java-font-lock-keywords-1 (c-lang-const c-matchers-1 java)
  "Minimal font locking for Java mode.
Fontifies nothing except the syntactic fontification of strings and
comments.")

(defconst java-font-lock-keywords-2 (c-lang-const c-matchers-2 java)
  "Fast normal font locking for Java mode.
In addition to `java-font-lock-keywords-1', this adds fontification of
keywords, simple types, declarations that are easy to recognize, the
user defined types on `java-font-lock-extra-types', and the doc
comment styles specified by `c-doc-comment-style'.")

(defconst java-font-lock-keywords-3 (c-lang-const c-matchers-3 java)
  "Accurate normal font locking for Java mode.
Like `java-font-lock-keywords-2' but detects declarations in a more
accurate way that works in most cases for arbitrary types without the
need for `java-font-lock-extra-types'.")

(defvar java-font-lock-keywords java-font-lock-keywords-3
  "Default expressions to highlight in Java mode.")

(defun java-font-lock-keywords-2 ()
  (c-compose-keywords-list java-font-lock-keywords-2))
(defun java-font-lock-keywords-3 ()
  (c-compose-keywords-list java-font-lock-keywords-3))
(defun java-font-lock-keywords ()
  (c-compose-keywords-list java-font-lock-keywords))


;;; CORBA IDL.

(c-override-default-keywords 'idl-font-lock-keywords)

(defconst idl-font-lock-keywords-1 (c-lang-const c-matchers-1 idl)
  "Minimal font locking for CORBA IDL mode.
Fontifies nothing except the syntactic fontification of strings and
comments.")

(defconst idl-font-lock-keywords-2 (c-lang-const c-matchers-2 idl)
  "Fast normal font locking for CORBA IDL mode.
In addition to `idl-font-lock-keywords-1', this adds fontification of
keywords, simple types, declarations that are easy to recognize, the
user defined types on `idl-font-lock-extra-types', and the doc comment
styles specified by `c-doc-comment-style'.")

(defconst idl-font-lock-keywords-3 (c-lang-const c-matchers-3 idl)
  "Accurate normal font locking for CORBA IDL mode.
Like `idl-font-lock-keywords-2' but detects declarations in a more
accurate way that works in most cases for arbitrary types without the
need for `idl-font-lock-extra-types'.")

(defvar idl-font-lock-keywords idl-font-lock-keywords-3
  "Default expressions to highlight in CORBA IDL mode.")

(defun idl-font-lock-keywords-2 ()
  (c-compose-keywords-list idl-font-lock-keywords-2))
(defun idl-font-lock-keywords-3 ()
  (c-compose-keywords-list idl-font-lock-keywords-3))
(defun idl-font-lock-keywords ()
  (c-compose-keywords-list idl-font-lock-keywords))


;;; Pike.

(c-override-default-keywords 'pike-font-lock-keywords)

(defconst pike-font-lock-keywords-1 (c-lang-const c-matchers-1 pike)
  "Minimal font locking for Pike mode.
Fontifies only preprocessor directives (in addition to the syntactic
fontification of strings and comments).")

(defconst pike-font-lock-keywords-2 (c-lang-const c-matchers-2 pike)
  "Fast normal font locking for Pike mode.
In addition to `pike-font-lock-keywords-1', this adds fontification of
keywords, simple types, declarations that are easy to recognize, the
user defined types on `pike-font-lock-extra-types', and the doc
comment styles specified by `c-doc-comment-style'.")

(defconst pike-font-lock-keywords-3 (c-lang-const c-matchers-3 pike)
  "Accurate normal font locking for Pike mode.
Like `pike-font-lock-keywords-2' but detects declarations in a more
accurate way that works in most cases for arbitrary types without the
need for `pike-font-lock-extra-types'.")

(defvar pike-font-lock-keywords pike-font-lock-keywords-3
  "Default expressions to highlight in Pike mode.")

(defun pike-font-lock-keywords-2 ()
  (c-compose-keywords-list pike-font-lock-keywords-2))
(defun pike-font-lock-keywords-3 ()
  (c-compose-keywords-list pike-font-lock-keywords-3))
(defun pike-font-lock-keywords ()
  (c-compose-keywords-list pike-font-lock-keywords))


;;; Doc comments.

(defun c-font-lock-doc-comments (prefix limit keywords)
  ;; Fontify the comments between the point and LIMIT whose start
  ;; matches PREFIX with `c-doc-face-name'.  Assumes comments have been
  ;; fontified with `font-lock-comment-face' already.  nil is always
  ;; returned.
  ;;
  ;; After the fontification of a matching comment, fontification
  ;; according to KEYWORDS is applied inside it.  It's a list like
  ;; `font-lock-keywords' except that anchored matches and eval
  ;; clauses aren't supported and that some abbreviated forms can't be
  ;; used.  The buffer is narrowed to the comment while KEYWORDS is
  ;; applied; leading comment starters are included but trailing
  ;; comment enders for block comment are not.
  ;;
  ;; Note that faces added through KEYWORDS should never replace the
  ;; existing `c-doc-face-name' face since the existence of that face
  ;; is used as a flag in other code to skip comments.
  ;;
  ;; This function might do hidden buffer changes.

  (let (comment-beg region-beg)
    (if (eq (get-text-property (point) 'face)
	    'font-lock-comment-face)
	;; Handle the case when the fontified region starts inside a
	;; comment.
	(let ((range (c-literal-limits)))
	  (setq region-beg (point))
	  (when range
	    (goto-char (car range)))
	  (when (looking-at prefix)
	    (setq comment-beg (point)))))

    (while (or
	    comment-beg

	    ;; Search for the prefix until a match is found at the start
	    ;; of a comment.
	    (while (when (re-search-forward prefix limit t)
		     (setq comment-beg (match-beginning 0))
		     (or (not (c-got-face-at comment-beg
					     c-literal-faces))
			 (and (/= comment-beg (point-min))
			      (c-got-face-at (1- comment-beg)
					     c-literal-faces))))
	      (setq comment-beg nil))
	    (setq region-beg comment-beg))

      (if (eq (elt (parse-partial-sexp comment-beg (+ comment-beg 2)) 7) t)
	  ;; Collect a sequence of doc style line comments.
	  (progn
	    (goto-char comment-beg)
	    (while (and (progn
			  (c-forward-single-comment)
			  (skip-syntax-forward " ")
			  (< (point) limit))
			(looking-at prefix))))
	(goto-char comment-beg)
	(c-forward-single-comment))
      (if (> (point) limit) (goto-char limit))
      (setq comment-beg nil)

      (let ((region-end (point))
	    (keylist keywords) keyword matcher highlights)
	(c-put-font-lock-face region-beg region-end c-doc-face-name)
	(save-restriction
	  ;; Narrow to the doc comment.  Among other things, this
	  ;; helps by making "^" match at the start of the comment.
	  ;; Do not include a trailing block comment ender, though.
	  (and (> region-end (1+ region-beg))
	       (progn (goto-char region-end)
		      (backward-char 2)
		      (looking-at "\\*/"))
	       (setq region-end (point)))
	  (narrow-to-region region-beg region-end)

	  (while keylist
	    (setq keyword (car keylist)
		  keylist (cdr keylist)
		  matcher (car keyword))
	    (goto-char region-beg)
	    (while (if (stringp matcher)
		       (re-search-forward matcher region-end t)
		     (funcall matcher region-end))
	      (setq highlights (cdr keyword))
	      (if (consp (car highlights))
		  (while highlights
		    (font-lock-apply-highlight (car highlights))
		    (setq highlights (cdr highlights)))
		(font-lock-apply-highlight highlights))))

	  (goto-char region-end)))))
  nil)
(put 'c-font-lock-doc-comments 'lisp-indent-function 2)

(defun c-find-invalid-doc-markup (regexp limit)
  ;; Used to fontify invalid markup in doc comments after the correct
  ;; ones have been fontified: Find the first occurence of REGEXP
  ;; between the point and LIMIT that only is fontified with
  ;; `c-doc-face-name'.  If a match is found then submatch 0 surrounds
  ;; the first char and t is returned, otherwise nil is returned.
  ;;
  ;; This function might do hidden buffer changes.
  (let (start)
    (while (if (re-search-forward regexp limit t)
	       (not (eq (get-text-property
			 (setq start (match-beginning 0)) 'face)
			c-doc-face-name))
	     (setq start nil)))
    (when start
      (store-match-data (list (copy-marker start)
			      (copy-marker (1+ start))))
      t)))

;; GtkDoc patterns contributed by Masatake YAMATO <jet@gyve.org>.

(defconst gtkdoc-font-lock-doc-comments
  (let ((symbol "[a-zA-Z0-9_]+")
	(header "^ \\* "))
    `((,(concat header "\\("     symbol "\\):[ \t]*$")
       1 ,c-doc-markup-face-name prepend nil)
      (,(concat                  symbol     "()")
       0 ,c-doc-markup-face-name prepend nil)
      (,(concat header "\\(" "@" symbol "\\):")
       1 ,c-doc-markup-face-name prepend nil)
      (,(concat "[#%]" symbol)
       0 ,c-doc-markup-face-name prepend nil))
    ))

(defconst gtkdoc-font-lock-doc-protection
  `(("< \\(public\\|private\\|protected\\) >"
     1 ,c-doc-markup-face-name prepend nil)))

(defconst gtkdoc-font-lock-keywords
  `((,(lambda (limit)
	(c-font-lock-doc-comments "/\\*\\*$" limit
	  gtkdoc-font-lock-doc-comments)
	(c-font-lock-doc-comments "/\\*< " limit
	  gtkdoc-font-lock-doc-protection)
	))))

;; Javadoc.

(defconst javadoc-font-lock-doc-comments
  `(("{@[a-z]+[^}\n\r]*}"		; "{@foo ...}" markup.
     0 ,c-doc-markup-face-name prepend nil)
    ("^\\(/\\*\\)?\\(\\s \\|\\*\\)*\\(@[a-z]+\\)" ; "@foo ..." markup.
     3 ,c-doc-markup-face-name prepend nil)
    (,(concat "</?\\sw"			; HTML tags.
	      "\\("
	      (concat "\\sw\\|\\s \\|[=\n\r*.:]\\|"
		      "\"[^\"]*\"\\|'[^']*'")
	      "\\)*>")
     0 ,c-doc-markup-face-name prepend nil)
    ("&\\(\\sw\\|[.:]\\)+;"		; HTML entities.
     0 ,c-doc-markup-face-name prepend nil)
    ;; Fontify remaining markup characters as invalid.  Note
    ;; that the Javadoc spec is hazy about when "@" is
    ;; allowed in non-markup use.
    (,(lambda (limit)
	(c-find-invalid-doc-markup "[<>&]\\|{@" limit))
     0 'font-lock-warning-face prepend nil)))

(defconst javadoc-font-lock-keywords
  `((,(lambda (limit)
	(c-font-lock-doc-comments "/\\*\\*" limit
	  javadoc-font-lock-doc-comments)))))

;; Pike autodoc.

(defconst autodoc-decl-keywords
  ;; Adorned regexp matching the keywords that introduce declarations
  ;; in Pike Autodoc.
  (cc-eval-when-compile
    (c-make-keywords-re t '("@decl" "@elem" "@index" "@member") 'pike-mode)))

(defconst autodoc-decl-type-keywords
  ;; Adorned regexp matching the keywords that are followed by a type.
  (cc-eval-when-compile
    (c-make-keywords-re t '("@elem" "@member") 'pike-mode)))

(defun autodoc-font-lock-line-markup (limit)
  ;; Fontify all line oriented keywords between the point and LIMIT.
  ;; Nil is always returned.
  ;;
  ;; This function might do hidden buffer changes.

  (let ((line-re (concat "^\\(\\(/\\*!\\|\\s *\\("
			 c-current-comment-prefix
			 "\\)\\)\\s *\\)@[A-Za-z_-]+\\(\\s \\|$\\)"))
	(markup-faces (list c-doc-markup-face-name c-doc-face-name)))

    (while (re-search-forward line-re limit t)
      (goto-char (match-end 1))

      (if (looking-at autodoc-decl-keywords)
	  (let* ((kwd-pos (point))
		 (start (match-end 1))
		 (pos start)
		 end)

	    (c-put-font-lock-face (point) pos markup-faces)

	    ;; Put a declaration end mark at the markup keyword and
	    ;; remove the faces from the rest of the line so that it
	    ;; gets refontified as a declaration later on by
	    ;; `c-font-lock-declarations'.
	    (c-put-char-property (1- pos) 'c-type 'c-decl-end)
	    (goto-char pos)
	    (while (progn
		     (end-of-line)
		     (setq end (point))
		     (and (eq (char-before) ?@)
			  (not (eobp))
			  (progn (forward-char)
				 (skip-syntax-forward " ")
				 (looking-at c-current-comment-prefix))))
	      (goto-char (match-end 0))
	      (c-remove-font-lock-face pos (1- end))
	      (c-put-font-lock-face (1- end) end markup-faces)
	      (setq pos (point)))

	    ;; Include the final newline in the removed area.  This
	    ;; has no visual effect but it avoids some tricky special
	    ;; cases in the testsuite wrt the differences in string
	    ;; fontification in Emacs vs XEmacs.
	    (c-remove-font-lock-face pos (min (1+ (point)) (point-max)))

	    ;; Must handle string literals explicitly inside the declaration.
	    (goto-char start)
	    (while (re-search-forward
		    "\"\\([^\\\"]\\|\\\\.\\)*\"\\|'\\([^\\']\\|\\\\.\\)*'"
		    end 'move)
	      (c-put-font-lock-string-face (match-beginning 0)
					   (point)))

	    ;; Fontify types after keywords that always are followed
	    ;; by them.
	    (goto-char kwd-pos)
	    (when (looking-at autodoc-decl-type-keywords)
	      (c-fontify-types-and-refs ((c-promote-possible-types t))
		(goto-char start)
		(c-forward-syntactic-ws)
		(c-forward-type))))

	;; Mark each whole line as markup, as long as the logical line
	;; continues.
	(while (progn
		 (c-put-font-lock-face (point)
				       (progn (end-of-line) (point))
				       markup-faces)
		 (and (eq (char-before) ?@)
		      (not (eobp))
		      (progn (forward-char)
			     (skip-syntax-forward " ")
			     (looking-at c-current-comment-prefix))))
	  (goto-char (match-end 0))))))

  nil)

(defconst autodoc-font-lock-doc-comments
  `(("@\\(\\w+{\\|\\[\\([^\]@\n\r]\\|@@\\)*\\]\\|[@}]\\|$\\)"
     ;; In-text markup.
     0 ,c-doc-markup-face-name prepend nil)
    (autodoc-font-lock-line-markup)
    ;; Fontify remaining markup characters as invalid.
    (,(lambda (limit)
	(c-find-invalid-doc-markup "@" limit))
     0 'font-lock-warning-face prepend nil)
    ))

(defun autodoc-font-lock-keywords ()
  ;; Note that we depend on that `c-current-comment-prefix' has got
  ;; its proper value here.
  ;;
  ;; This function might do hidden buffer changes.

  ;; The `c-type' text property with `c-decl-end' is used to mark the
  ;; end of the `autodoc-decl-keywords' occurrences to fontify the
  ;; following declarations.
  (setq c-type-decl-end-used t)

  `((,(lambda (limit)
	(c-font-lock-doc-comments "/[*/]!" limit
	  autodoc-font-lock-doc-comments)))))


;; 2006-07-10:  awk-font-lock-keywords has been moved back to cc-awk.el.
(cc-provide 'cc-fonts)

;;; arch-tag: 2f65f405-735f-4da5-8d4b-b957844c5203
;;; cc-fonts.el ends here