xemacs-beta: lisp/font-lock.el comparison

comparison lisp/font-lock.el @ 217:d44af0c54775 r20-4b7

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date	Mon, 13 Aug 2007 10:08:34 +0200
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+:d44af0c54775
+;;; font-lock.el --- decorating source files with fonts/colors based on syntax
+;; Copyright (C) 1992-1995, 1997 Free Software Foundation, Inc.
+;; Copyright (C) 1995 Amdahl Corporation.
+;; Copyright (C) 1996 Ben Wing.
+;; Author: Jamie Zawinski <jwz@netscape.com>, for the LISPM Preservation Society.
+;; Minimally merged with FSF 19.34 by Barry Warsaw <bwarsaw@python.org>
+;; Then (partially) synched with FSF 19.30, leading to:
+;; Next Author: RMS
+;; Next Author: Simon Marshall <simon@gnu.ai.mit.edu>
+;; Latest XEmacs Author: Ben Wing
+;; Maintainer: XEmacs Development Team (sigh :-( )
+;; Keywords: languages, faces
+;; This file is part of XEmacs.
+;; XEmacs is free software; you can redistribute it and/or modify it
+;; under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, or (at your option)
+;; any later version.
+;; XEmacs 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 XEmacs; see the file COPYING.  If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+;;; Synched up with: FSF 19.30 except for the code to initialize the faces.
+;;; Commentary:
+;; Font-lock-mode is a minor mode that causes your comments to be
+;; displayed in one face, strings in another, reserved words in another,
+;; documentation strings in another, and so on.
+;;
+;; Comments will be displayed in `font-lock-comment-face'.
+;; Strings will be displayed in `font-lock-string-face'.
+;; Doc strings will be displayed in `font-lock-doc-string-face'.
+;; Function and variable names (in their defining forms) will be
+;;  displayed in `font-lock-function-name-face'.
+;; Reserved words will be displayed in `font-lock-keyword-face'.
+;;
+;; Don't let the name fool you: you can highlight things using different
+;; colors or background stipples instead of fonts, though that is not the
+;; default.  See the variables `font-lock-use-colors' and
+;; `font-lock-use-fonts' for broad control over this, or see the
+;; documentation on faces and how to change their attributes for
+;; fine-grained control.
+;;
+;; To make the text you type be fontified, use M-x font-lock-mode.  When
+;; this minor mode is on, the fonts of the current line will be updated
+;; with every insertion or deletion.
+;;
+;; By default, font-lock will automatically put newly loaded files
+;; into font-lock-mode if it knows about the file's mode.  See the
+;; variables `font-lock-auto-fontify', `font-lock-mode-enable-list',
+;; and `font-lock-mode-disable-list' for control over this.
+;;
+;; The `font-lock-keywords' variable defines other patterns to highlight.
+;; The default font-lock-mode-hook sets it to the value of the variables
+;; lisp-font-lock-keywords, c-font-lock-keywords, etc, as appropriate.
+;; The easiest way to change the highlighting patterns is to change the
+;; values of c-font-lock-keywords and related variables.  See the doc
+;; string of the variable `font-lock-keywords' for the appropriate syntax.
+;;
+;; The default value for `lisp-font-lock-keywords' is the value of the variable
+;; `lisp-font-lock-keywords-1'.  You may like `lisp-font-lock-keywords-2'
+;; better; it highlights many more words, but is slower and makes your buffers
+;; be very visually noisy.
+;;
+;; The same is true of `c-font-lock-keywords-1' and `c-font-lock-keywords-2';
+;; the former is subdued, the latter is loud.
+;;
+;; You can make font-lock default to the gaudier variety of keyword
+;; highlighting by setting the variable `font-lock-maximum-decoration'
+;; before loading font-lock, or by calling the functions
+;; `font-lock-use-default-maximal-decoration' or
+;; `font-lock-use-default-minimal-decoration'.
+;;
+;; On a Sparc10, the initial fontification takes about 6 seconds for a typical
+;; 140k file of C code, using the default configuration.  The actual speed
+;; depends heavily on the type of code in the file, and how many non-syntactic
+;; patterns match; for example, Xlib.h takes 23 seconds for 101k, because many
+;; patterns match in it.  You can speed this up substantially by removing some
+;; of the patterns that are highlighted by default.  Fontifying lisp code is
+;; significantly faster, because lisp has a more regular syntax than C, so the
+;; regular expressions don't have to be as complicated.
+;;
+;; It's called font-lock-mode here because on the Lispms it was called
+;; "Electric Font Lock Mode."  It was called that because there was an older
+;; mode called "Electric Caps Lock Mode" which had the function of causing all
+;; of your source code to be in upper case except for strings and comments,
+;; without you having to blip the caps lock key by hand all the time (thus the
+;; "electric", as in `electric-c-brace'.)
+;; See also the related packages `fast-lock' and `lazy-lock'.  Both
+;; attempt to speed up the initial fontification.  `fast-lock' saves
+;; the fontification info when you exit Emacs and reloads it next time
+;; you load the file, so that the file doesn't have to be fontified
+;; again.  `lazy-lock' does "lazy" fontification -- i.e. it only
+;; fontifies the text as it becomes visible rather than fontifying
+;; the whole file when it's first loaded in.
+;; Further comments from the FSF:
+;; Nasty regexps of the form "bar\\(\\|lo\\)\\|f\\(oo\\|u\\(\\|bar\\)\\)\\|lo"
+;; are made thusly: (regexp-opt '("foo" "fu" "fubar" "bar" "barlo" "lo")) for
+;; efficiency.
+;; What is fontification for?  You might say, "It's to make my code look nice."
+;; I think it should be for adding information in the form of cues.  These cues
+;; should provide you with enough information to both (a) distinguish between
+;; different items, and (b) identify the item meanings, without having to read
+;; the items and think about it.  Therefore, fontification allows you to think
+;; less about, say, the structure of code, and more about, say, why the code
+;; doesn't work.  Or maybe it allows you to think less and drift off to sleep.
+;;
+;; So, here are my opinions/advice/guidelines:
+;;
+;; - Use the same face for the same conceptual object, across all modes.
+;;   i.e., (b) above, all modes that have items that can be thought of as, say,
+;;   keywords, should be highlighted with the same face, etc.
+;; - Keep the faces distinct from each other as far as possible.
+;;   i.e., (a) above.
+;; - Make the face attributes fit the concept as far as possible.
+;;   i.e., function names might be a bold colour such as blue, comments might
+;;   be a bright colour such as red, character strings might be brown, because,
+;;   err, strings are brown (that was not the reason, please believe me).
+;; - Don't use a non-nil OVERRIDE unless you have a good reason.
+;;   Only use OVERRIDE for special things that are easy to define, such as the
+;;   way `...' quotes are treated in strings and comments in Emacs Lisp mode.
+;;   Don't use it to, say, highlight keywords in commented out code or strings.
+;; - Err, that's it.
+;;; Code:
+(require 'fontl-hooks)
+;;;;;;;;;;;;;;;;;;;;;;      user variables       ;;;;;;;;;;;;;;;;;;;;;;
+(defvar font-lock-verbose t
+"*If non-nil, means show status messages when fontifying.
+See also `font-lock-message-threshold'.")
+(defvar font-lock-message-threshold 6000
+"*Minimum size of region being fontified for status messages to appear.
+The size is measured in characters.  This affects `font-lock-fontify-region'
+but not `font-lock-fontify-buffer'. (In other words, when you first visit
+a file and it gets fontified, you will see status messages no matter what
+size the file is.  However, if you do something else like paste a
+chunk of text or revert a buffer, you will see status messages only if the
+changed region is large enough.)
+Note that setting `font-lock-verbose' to nil disables the status
+messages entirely.")
+;;;###autoload
+(defvar font-lock-auto-fontify t
+"*Whether font-lock should automatically fontify files as they're loaded.
+This will only happen if font-lock has fontifying keywords for the major
+mode of the file.  You can get finer-grained control over auto-fontification
+by using this variable in combination with `font-lock-mode-enable-list' or
+`font-lock-mode-disable-list'.")
+;;;###autoload
+(defvar font-lock-mode-enable-list nil
+"*List of modes to auto-fontify, if `font-lock-auto-fontify' is nil.")
+;;;###autoload
+(defvar font-lock-mode-disable-list nil
+"*List of modes not to auto-fontify, if `font-lock-auto-fontify' is t.")
+;;;###autoload
+(defvar font-lock-use-colors '(color)
+"*Specification for when Font Lock will set up color defaults.
+Normally this should be '(color), meaning that Font Lock will set up
+color defaults that are only used on color displays.  Set this to nil
+if you don't want Font Lock to set up color defaults at all.  This
+should be one of
+-- a list of valid tags, meaning that the color defaults will be used
+when all of the tags apply. (e.g. '(color x))
+-- a list whose first element is 'or and whose remaining elements are
+lists of valid tags, meaning that the defaults will be used when
+any of the tag lists apply.
+-- nil, meaning that the defaults should not be set up at all.
+\(If you specify face values in your init file, they will override any
+that Font Lock specifies, regardless of whether you specify the face
+values before or after loading Font Lock.)
+See also `font-lock-use-fonts'.  If you want more control over the faces
+used for fontification, see the documentation of `font-lock-mode' for
+how to do it.")
+;;;###autoload
+(defvar font-lock-use-fonts '(or (mono) (grayscale))
+"*Specification for when Font Lock will set up non-color defaults.
+Normally this should be '(or (mono) (grayscale)), meaning that Font
+Lock will set up non-color defaults that are only used on either mono
+or grayscale displays.  Set this to nil if you don't want Font Lock to
+set up non-color defaults at all.  This should be one of
+-- a list of valid tags, meaning that the non-color defaults will be used
+when all of the tags apply. (e.g. '(grayscale x))
+-- a list whose first element is 'or and whose remaining elements are
+lists of valid tags, meaning that the defaults will be used when
+any of the tag lists apply.
+-- nil, meaning that the defaults should not be set up at all.
+\(If you specify face values in your init file, they will override any
+that Font Lock specifies, regardless of whether you specify the face
+values before or after loading Font Lock.)
+See also `font-lock-use-colors'.  If you want more control over the faces
+used for fontification, see the documentation of `font-lock-mode' for
+how to do it.")
+;;;###autoload
+(defvar font-lock-maximum-decoration nil
+"*If non-nil, the maximum decoration level for fontifying.
+If nil, use the minimum decoration (equivalent to level 0).
+If t, use the maximum decoration available.
+If a number, use that level of decoration (or if not available the maximum).
+If a list, each element should be a cons pair of the form (MAJOR-MODE . LEVEL),
+where MAJOR-MODE is a symbol or t (meaning the default).  For example:
+((c++-mode . 2) (c-mode . t) (t . 1))
+means use level 2 decoration for buffers in `c++-mode', the maximum decoration
+available for buffers in `c-mode', and level 1 decoration otherwise.")
+;;;###autoload
+(define-obsolete-variable-alias 'font-lock-use-maximal-decoration
+'font-lock-maximum-decoration)
+;;;###autoload
+(defvar font-lock-maximum-size (* 250 1024)
+"*If non-nil, the maximum size for buffers for fontifying.
+Only buffers less than this can be fontified when Font Lock mode is turned on.
+If nil, means size is irrelevant.
+If a list, each element should be a cons pair of the form (MAJOR-MODE . SIZE),
+where MAJOR-MODE is a symbol or t (meaning the default).  For example:
+((c++-mode . 256000) (c-mode . 256000) (rmail-mode . 1048576))
+means that the maximum size is 250K for buffers in `c++-mode' or `c-mode', one
+megabyte for buffers in `rmail-mode', and size is irrelevant otherwise.")
+;; Fontification variables:
+;;;###autoload
+(defvar font-lock-keywords nil
+"*A list of the keywords to highlight.
+Each element should be of the form:
+MATCHER
+(MATCHER . MATCH)
+(MATCHER . FACENAME)
+(MATCHER . HIGHLIGHT)
+(MATCHER HIGHLIGHT ...)
+(eval . FORM)
+where HIGHLIGHT should be either MATCH-HIGHLIGHT or MATCH-ANCHORED.
+FORM is an expression, whose value should be a keyword element,
+evaluated when the keyword is (first) used in a buffer.  This feature
+can be used to provide a keyword that can only be generated when Font
+Lock mode is actually turned on.
+For highlighting single items, typically only MATCH-HIGHLIGHT is required.
+However, if an item or (typically) items is to be highlighted following the
+instance of another item (the anchor) then MATCH-ANCHORED may be required.
+MATCH-HIGHLIGHT should be of the form:
+(MATCH FACENAME OVERRIDE LAXMATCH)
+Where MATCHER can be either the regexp to search for, a variable
+containing the regexp to search for, or the function to call to make
+the search (called with one argument, the limit of the search).  MATCH
+is the subexpression of MATCHER to be highlighted.  FACENAME is either
+a symbol naming a face, or an expression whose value is the face name
+to use.  If you want FACENAME to be a symbol that evaluates to a face,
+use a form like \"(progn sym)\".
+OVERRIDE and LAXMATCH are flags.  If OVERRIDE is t, existing fontification may
+be overwritten.  If `keep', only parts not already fontified are highlighted.
+If `prepend' or `append', existing fontification is merged with the new, in
+which the new or existing fontification, respectively, takes precedence.
+If LAXMATCH is non-nil, no error is signalled if there is no MATCH in MATCHER.
+For example, an element of the form highlights (if not already highlighted):
+\"\\\\\\=<foo\\\\\\=>\"		Discrete occurrences of \"foo\" in the value of the
+			variable `font-lock-keyword-face'.
+(\"fu\\\\(bar\\\\)\" . 1)	Substring \"bar\" within all occurrences of \"fubar\" in
+			the value of `font-lock-keyword-face'.
+(\"fubar\" . fubar-face)	Occurrences of \"fubar\" in the value of `fubar-face'.
+(\"foo\\\\|bar\" 0 foo-bar-face t)
+			Occurrences of either \"foo\" or \"bar\" in the value
+			of `foo-bar-face', even if already highlighted.
+MATCH-ANCHORED should be of the form:
+(MATCHER PRE-MATCH-FORM POST-MATCH-FORM MATCH-HIGHLIGHT ...)
+Where MATCHER is as for MATCH-HIGHLIGHT with one exception; see below.
+PRE-MATCH-FORM and POST-MATCH-FORM are evaluated before the first, and after
+the last, instance MATCH-ANCHORED's MATCHER is used.  Therefore they can be
+used to initialise before, and cleanup after, MATCHER is used.  Typically,
+PRE-MATCH-FORM is used to move to some position relative to the original
+MATCHER, before starting with MATCH-ANCHORED's MATCHER.  POST-MATCH-FORM might
+be used to move, before resuming with MATCH-ANCHORED's parent's MATCHER.
+For example, an element of the form highlights (if not already highlighted):
+(\"\\\\\\=<anchor\\\\\\=>\" (0 anchor-face) (\"\\\\\\=<item\\\\\\=>\" nil nil (0 item-face)))
+Discrete occurrences of \"anchor\" in the value of `anchor-face', and subsequent
+discrete occurrences of \"item\" (on the same line) in the value of `item-face'.
+(Here PRE-MATCH-FORM and POST-MATCH-FORM are nil.  Therefore \"item\" is
+initially searched for starting from the end of the match of \"anchor\", and
+searching for subsequent instance of \"anchor\" resumes from where searching
+for \"item\" concluded.)
+The above-mentioned exception is as follows.  The limit of the MATCHER search
+defaults to the end of the line after PRE-MATCH-FORM is evaluated.
+However, if PRE-MATCH-FORM returns a position greater than the position after
+PRE-MATCH-FORM is evaluated, that position is used as the limit of the search.
+It is generally a bad idea to return a position greater than the end of the
+line, i.e., cause the MATCHER search to span lines.
+Note that the MATCH-ANCHORED feature is experimental; in the future, we may
+replace it with other ways of providing this functionality.
+These regular expressions should not match text which spans lines.  While
+\\[font-lock-fontify-buffer] handles multi-line patterns correctly, updating
+when you edit the buffer does not, since it considers text one line at a time.
+Be very careful composing regexps for this list;
+the wrong pattern can dramatically slow things down!")
+;;;###autoload
+(make-variable-buffer-local 'font-lock-keywords)
+(defvar font-lock-defaults nil
+"The defaults font Font Lock mode for the current buffer.
+Normally, do not set this directly.  If you are writing a major mode,
+put a property of `font-lock-defaults' on the major-mode symbol with
+the desired value.
+It should be a list
+\(KEYWORDS KEYWORDS-ONLY CASE-FOLD SYNTAX-ALIST SYNTAX-BEGIN)
+KEYWORDS may be a symbol (a variable or function whose value is the keywords
+to use for fontification) or a list of symbols.  If KEYWORDS-ONLY is non-nil,
+syntactic fontification (strings and comments) is not performed.  If CASE-FOLD
+is non-nil, the case of the keywords is ignored when fontifying.  If
+SYNTAX-ALIST is non-nil, it should be a list of cons pairs of the form (CHAR
+. STRING) used to set the local Font Lock syntax table, for keyword and
+syntactic fontification (see `modify-syntax-entry').
+If SYNTAX-BEGIN is non-nil, it should be a function with no args used to move
+backwards outside any enclosing syntactic block, for syntactic fontification.
+Typical values are `beginning-of-line' (i.e., the start of the line is known to
+be outside a syntactic block), or `beginning-of-defun' for programming modes or
+`backward-paragraph' for textual modes (i.e., the mode-dependent function is
+known to move outside a syntactic block).  If nil, the beginning of the buffer
+is used as a position outside of a syntactic block, in the worst case.
+These item elements are used by Font Lock mode to set the variables
+`font-lock-keywords', `font-lock-keywords-only',
+`font-lock-keywords-case-fold-search', `font-lock-syntax-table' and
+`font-lock-beginning-of-syntax-function', respectively.
+Alternatively, if the value is a symbol, it should name a major mode,
+and the defaults for that mode will apply.")
+(make-variable-buffer-local 'font-lock-defaults)
+;; FSF uses `font-lock-defaults-alist' and expects the major mode to
+;; set a value for `font-lock-defaults', but I don't like either of
+;; these -- requiring the mode to set `font-lock-defaults' makes it
+;; impossible to have defaults for a minor mode, and using an alist is
+;; generally a bad idea for information that really should be
+;; decentralized. (Who knows what strange modes might want
+;; font-locking?)
+(defvar font-lock-keywords-only nil
+"Non-nil means Font Lock should not do syntactic fontification.
+This is normally set via `font-lock-defaults'.
+This should be nil for all ``language'' modes, but other modes, like
+dired, do not have anything useful in the syntax tables (no comment
+or string delimiters, etc) and so there is no need to use them and
+this variable should have a value of t.
+You should not set this variable directly; its value is computed
+from `font-lock-defaults', or (if that does not specify anything)
+by examining the syntax table to see whether it appears to contain
+anything useful.")
+(make-variable-buffer-local 'font-lock-keywords-only)
+(defvar font-lock-keywords-case-fold-search nil
+"Whether the strings in `font-lock-keywords' should be case-folded.
+This variable is automatically buffer-local, as the correct value depends
+on the language in use.")
+(make-variable-buffer-local 'font-lock-keywords-case-fold-search)
+(defvar font-lock-after-fontify-buffer-hook nil
+"Function or functions to run after completion of font-lock-fontify-buffer.")
+(defvar font-lock-syntax-table nil
+"Non-nil means use this syntax table for fontifying.
+If this is nil, the major mode's syntax table is used.
+This is normally set via `font-lock-defaults'.")
+(make-variable-buffer-local 'font-lock-syntax-table)
+;; These are used in the FSF version in syntactic font-locking.
+;; We do this all in C.
+;;; These record the parse state at a particular position, always the
+;;; start of a line.  Used to make
+;;; `font-lock-fontify-syntactically-region' faster.
+;(defvar font-lock-cache-position nil)
+;(defvar font-lock-cache-state nil)
+;(make-variable-buffer-local 'font-lock-cache-position)
+;(make-variable-buffer-local 'font-lock-cache-state)
+;; If this is nil, we only use the beginning of the buffer if we can't use
+;; `font-lock-cache-position' and `font-lock-cache-state'.
+(defvar font-lock-beginning-of-syntax-function nil
+"Non-nil means use this function to move back outside of a syntactic block.
+If this is nil, the beginning of the buffer is used (in the worst case).
+This is normally set via `font-lock-defaults'.")
+(make-variable-buffer-local 'font-lock-beginning-of-syntax-function)
+;;;###autoload
+(defvar font-lock-mode nil) ; for modeline
+(defvar font-lock-fontified nil) ; whether we have hacked this buffer
+(put 'font-lock-fontified 'permanent-local t)
+;;;###autoload
+(defvar font-lock-mode-hook nil
+"Function or functions to run on entry to font-lock-mode.")
+; whether font-lock-set-defaults has already been run.
+(defvar font-lock-defaults-computed nil)
+(make-variable-buffer-local 'font-lock-defaults-computed)
+;; #### barf gag retch.  Horrid FSF lossage that we need to
+;; keep around for compatibility with font-lock-keywords that
+;; forget to properly quote their faces.
+(defvar font-lock-comment-face 'font-lock-comment-face
+"Don't even think of using this.")
+(defvar font-lock-doc-string-face 'font-lock-doc-string-face
+"Don't even think of using this.")
+(defvar font-lock-string-face 'font-lock-string-face
+"Don't even think of using this.")
+(defvar font-lock-keyword-face 'font-lock-keyword-face
+"Don't even think of using this.")
+(defvar font-lock-function-name-face 'font-lock-function-name-face
+"Don't even think of using this.")
+(defvar font-lock-variable-name-face 'font-lock-variable-name-face
+"Don't even think of using this.")
+(defvar font-lock-type-face 'font-lock-type-face
+"Don't even think of using this.")
+(defvar font-lock-reference-face 'font-lock-reference-face
+"Don't even think of using this.")
+(defvar font-lock-preprocessor-face 'font-lock-preprocessor-face
+"Don't even think of using this.")
+;;;;;;;;;;;;;;;;;;;;;;        actual code        ;;;;;;;;;;;;;;;;;;;;;;
+;;; To fontify the whole buffer by language syntax, we go through it a
+;;; character at a time, creating extents on the boundary of each syntactic
+;;; unit (that is, one extent for each block comment, one for each line
+;;; comment, one for each string, etc.)  This is done with the C function
+;;; syntactically-sectionize.  It's in C for speed (the speed of lisp function
+;;; calls was a real bottleneck for this task since it involves examining each
+;;; character in turn.)
+;;;
+;;; Then we make a second pass, to fontify the buffer based on other patterns
+;;; specified by regexp.  When we find a match for a region of text, we need
+;;; to change the fonts on those characters.  This is done with the
+;;; put-text-property function, which knows how to efficiently share extents.
+;;; Conceptually, we are attaching some particular face to each of the
+;;; characters in a range, but the implementation of this involves creating
+;;; extents, or resizing existing ones.
+;;;
+;;; Each time a modification happens to a line, we re-fontify the entire line.
+;;; We do this by first removing the extents (text properties) on the line,
+;;; and then doing the syntactic and keyword passes again on that line.  (More
+;;; generally, each modified region is extended to include the preceding and
+;;; following BOL or EOL.)
+;;;
+;;; This means that, as the user types, we repeatedly go back to the beginning
+;;; of the line, doing more work the longer the line gets.  This doesn't cost
+;;; much in practice, and if we don't, then we incorrectly fontify things when,
+;;; for example, inserting spaces into `intfoo () {}'.
+;;;
+;; The user level functions
+;;;###autoload
+(defun font-lock-mode (&optional arg)
+"Toggle Font Lock Mode.
+With arg, turn font-lock mode on if and only if arg is positive.
+When Font Lock mode is enabled, text is fontified as you type it:
+- Comments are displayed in `font-lock-comment-face';
+- Strings are displayed in `font-lock-string-face';
+- Documentation strings (in Lisp-like languages) are displayed in
+`font-lock-doc-string-face';
+- Language keywords (\"reserved words\") are displayed in
+`font-lock-keyword-face';
+- Function names in their defining form are displayed in
+`font-lock-function-name-face';
+- Variable names in their defining form are displayed in
+`font-lock-variable-name-face';
+- Type names are displayed in `font-lock-type-face';
+- References appearing in help files and the like are displayed
+in `font-lock-reference-face';
+- Preprocessor declarations are displayed in
+`font-lock-preprocessor-face';
+and
+- Certain other expressions are displayed in other faces according
+to the value of the variable `font-lock-keywords'.
+Where modes support different levels of fontification, you can use the variable
+`font-lock-maximum-decoration' to specify which level you generally prefer.
+When you turn Font Lock mode on/off the buffer is fontified/defontified, though
+fontification occurs only if the buffer is less than `font-lock-maximum-size'.
+To fontify a buffer without turning on Font Lock mode, and regardless of buffer
+size, you can use \\[font-lock-fontify-buffer].
+See the variable `font-lock-keywords' for customization."
+(interactive "P")
+(let ((on-p (if arg (> (prefix-numeric-value arg) 0) (not font-lock-mode)))
+	(maximum-size (if (not (consp font-lock-maximum-size))
+			  font-lock-maximum-size
+			(cdr (or (assq major-mode font-lock-maximum-size)
+				 (assq t font-lock-maximum-size))))))
+;; Font-lock mode will refuse to turn itself on if in batch mode, or if
+;; the current buffer is "invisible".  The latter is because packages
+;; sometimes put their temporary buffers into some particular major mode
+;; to get syntax tables and variables and whatnot, but we don't want the
+;; fact that the user has font-lock-mode on a mode hook to slow these
+;; things down.
+(if (or noninteractive (eq (aref (buffer-name) 0) ?\ ))
+	(setq on-p nil))
+(if (equal (buffer-name) " *Compiler Input*") ; hack for bytecomp...
+	(setq on-p nil))
+(cond (on-p
+	   (make-local-hook 'after-change-functions)
+	   (add-hook 'after-change-functions
+		     'font-lock-after-change-function nil t)
+	   (add-hook 'pre-idle-hook 'font-lock-pre-idle-hook))
+	  (t
+	   (remove-hook 'after-change-functions
+			'font-lock-after-change-function t)
+	   (setq font-lock-defaults-computed nil
+		 font-lock-keywords nil)
+	   ;; We have no business doing this here, since
+	   ;; pre-idle-hook is global.	Other buffers may
+	   ;; still be in font-lock mode.  -dkindred@cs.cmu.edu
+	   ;; (remove-hook 'pre-idle-hook 'font-lock-pre-idle-hook)
+	   ))
+(set (make-local-variable 'font-lock-mode) on-p)
+(cond (on-p
+	   (font-lock-set-defaults-1)
+	   (make-local-hook 'before-revert-hook)
+	   (make-local-hook 'after-revert-hook)
+	   ;; If buffer is reverted, must clean up the state.
+	   (add-hook 'before-revert-hook 'font-lock-revert-setup nil t)
+	   (add-hook 'after-revert-hook 'font-lock-revert-cleanup nil t)
+	   (run-hooks 'font-lock-mode-hook)
+	   (cond (font-lock-fontified
+		  nil)
+		 ((or (null maximum-size) (<= (buffer-size) maximum-size))
+		  (font-lock-fontify-buffer))
+		 (font-lock-verbose
+		  (display-message
+		   'command
+		   (format "Fontifying %s... buffer too big." (buffer-name))))))
+	  (font-lock-fontified
+	   (setq font-lock-fontified nil)
+	   (remove-hook 'before-revert-hook 'font-lock-revert-setup t)
+	   (remove-hook 'after-revert-hook 'font-lock-revert-cleanup t)
+	   (font-lock-unfontify-region (point-min) (point-max))
+	   (font-lock-thing-lock-cleanup))
+	  (t
+	   (remove-hook 'before-revert-hook 'font-lock-revert-setup t)
+	   (remove-hook 'after-revert-hook 'font-lock-revert-cleanup t)
+	   (font-lock-thing-lock-cleanup)))
+(redraw-modeline)))
+;; For init-file hooks
+;;;###autoload
+(defun turn-on-font-lock ()
+"Unconditionally turn on Font Lock mode."
+(font-lock-mode 1))
+;;;###autoload
+(defun turn-off-font-lock ()
+"Unconditionally turn off Font Lock mode."
+(font-lock-mode 0))
+;;;###autoload
+(defun font-lock-fontify-buffer ()
+"Fontify the current buffer the way `font-lock-mode' would.
+See `font-lock-mode' for details.
+This can take a while for large buffers."
+(interactive)
+(let ((was-on font-lock-mode)
+	(font-lock-verbose (or font-lock-verbose (interactive-p)))
+	(font-lock-message-threshold 0)
+	(aborted nil))
+;; Turn it on to run hooks and get the right font-lock-keywords.
+(or was-on (font-lock-mode 1))
+(font-lock-unfontify-region (point-min) (point-max) t)
+;;    (buffer-syntactic-context-flush-cache)
+;; If a ^G is typed during fontification, abort the fontification, but
+;; return normally (do not signal.)  This is to make it easy to abort
+;; fontification if it's taking a long time, without also causing the
+;; buffer not to pop up.  If a real abort is desired, the user can ^G
+;; again.
+;;
+;; Possibly this should happen down in font-lock-fontify-region instead
+;; of here, but since that happens from the after-change-hook (meaning
+;; much more frequently) I'm afraid of the bad consequences of stealing
+;; the interrupt character at inopportune times.
+;;
+(condition-case nil
+	(save-excursion
+	  (font-lock-fontify-region (point-min) (point-max)))
+(quit
+(setq aborted t)))
+(or was-on		; turn it off if it was off.
+	(let ((font-lock-fontified nil)) ; kludge to prevent defontification
+	  (font-lock-mode 0)))
+(set (make-local-variable 'font-lock-fontified) t)
+(if (and aborted font-lock-verbose)
+	(display-message 'command
+			 (format "Fontifying %s... aborted." (buffer-name))))
+)
+(run-hooks 'font-lock-after-fontify-buffer-hook))
+;; Fontification functions.
+;; We first define some defsubsts to encapsulate the way we add
+;; faces to a region of text.  I am planning on modifying the
+;; text-property mechanism so that multiple independent classes
+;; of text properties can exist.  That way, for example, ediff's
+;; face text properties don't interfere with font lock's face
+;; text properties.  Due to the XEmacs implementation of text
+;; properties in terms of extents, doing this is fairly trivial:
+;; instead of using the `text-prop' property, you just use a
+;; specified property.
+(defsubst font-lock-set-face (start end face)
+;; Set the face on the characters in the range.
+(put-nonduplicable-text-property start end 'face face)
+(put-nonduplicable-text-property start end 'font-lock t))
+(defsubst font-lock-remove-face (start end)
+;; Remove any syntax highlighting on the characters in the range.
+(put-nonduplicable-text-property start end 'face nil)
+(put-nonduplicable-text-property start end 'font-lock nil))
+(defsubst font-lock-any-faces-p (start end)
+;; Return non-nil if we've put any syntax highlighting on
+;; the characters in the range.
+;;
+;; used to look for 'text-prop property, but this has problems if
+;; you put any other text properties in the vicinity.  Simon
+;; Marshall suggested looking for the 'face property (this is what
+;; FSF Emacs does) but that's equally bogus.  Only reliable way is
+;; for font-lock to specially mark its extents.
+;;
+;; FSF's (equivalent) definition of this defsubst would be
+;; (text-property-not-all start end 'font-lock nil)
+;;
+;; Perhaps our `map-extents' is faster than our definition
+;; of `text-property-not-all'.  #### If so, `text-property-not-all'
+;; should be fixed ...
+;;
+(map-extents 'extent-property (current-buffer) start (1- end) 'font-lock))
+;; Fontification functions.
+;; We use this wrapper.  However, `font-lock-fontify-region' used to be the
+;; name used for `font-lock-fontify-syntactically-region', so a change isn't
+;; back-compatible.  But you shouldn't be calling these directly, should you?
+(defun font-lock-fontify-region (beg end &optional loudly)
+(let ((modified (buffer-modified-p))
+	(buffer-undo-list t) (inhibit-read-only t)
+	(old-syntax-table (syntax-table))
+	buffer-file-name buffer-file-truename)
+(unwind-protect
+	(progn
+	  ;; Use the fontification syntax table, if any.
+	  (if font-lock-syntax-table (set-syntax-table font-lock-syntax-table))
+	  ;; Now do the fontification.
+	  (if font-lock-keywords-only
+	      (font-lock-unfontify-region beg end)
+	    (font-lock-fontify-syntactically-region beg end loudly))
+	  (font-lock-fontify-keywords-region beg end loudly))
+;; Clean up.
+(set-syntax-table old-syntax-table)
+(and (not modified) (buffer-modified-p) (set-buffer-modified-p nil)))))
+;; The following must be rethought, since keywords can override fontification.
+;      ;; Now scan for keywords, but not if we are inside a comment now.
+;      (or (and (not font-lock-keywords-only)
+;	       (let ((state (parse-partial-sexp beg end nil nil
+;						font-lock-cache-state)))
+;		 (or (nth 4 state) (nth 7 state))))
+;	  (font-lock-fontify-keywords-region beg end))
+(defun font-lock-unfontify-region (beg end &optional maybe-loudly)
+(if (and maybe-loudly font-lock-verbose
+	   (>= (- end beg) font-lock-message-threshold))
+(display-message
+'progress
+(format "Fontifying %s..." (buffer-name))))
+(let ((modified (buffer-modified-p))
+	(buffer-undo-list t) (inhibit-read-only t)
+	buffer-file-name buffer-file-truename)
+(font-lock-remove-face beg end)
+(and (not modified) (buffer-modified-p) (set-buffer-modified-p nil))))
+;; Following is the original FSF version (similar to our original
+;; version, before all the crap I added below).
+;;
+;; Probably that crap should either be fixed up so it works better,
+;; or tossed away.
+;;
+;; I think that lazy-lock v2 tries to do something similar.
+;; Those efforts should be merged.
+;; Called when any modification is made to buffer text.
+;(defun font-lock-after-change-function (beg end old-len)
+;  (save-excursion
+;    (save-match-data
+;      ;; Rescan between start of line from `beg' and start of line after `end'.
+;      (font-lock-fontify-region
+;	(progn (goto-char beg) (beginning-of-line) (point))
+;	(progn (goto-char end) (forward-line 1) (point))))))
+(defvar font-lock-old-extent nil)
+(defvar font-lock-old-len 0)
+(defun font-lock-fontify-glumped-region ()
+;; even if something goes wrong in the fontification, mark the glumped
+;; region as fontified; otherwise, the same error might get signaled
+;; after every command.
+(unwind-protect
+;; buffer may be deleted.
+(if (buffer-live-p (extent-object font-lock-old-extent))
+	  (save-excursion
+	    (set-buffer (extent-object font-lock-old-extent))
+	    (font-lock-after-change-function-1
+	     (extent-start-position font-lock-old-extent)
+	     (extent-end-position font-lock-old-extent)
+	     font-lock-old-len)))
+(detach-extent font-lock-old-extent)
+(setq font-lock-old-extent nil)))
+(defun font-lock-pre-idle-hook ()
+(condition-case nil
+(if font-lock-old-extent
+	  (font-lock-fontify-glumped-region))
+(error (warn "Error caught in `font-lock-pre-idle-hook'"))))
+(defvar font-lock-always-fontify-immediately nil
+"Set this to non-nil to disable font-lock deferral.")
+;;; called when any modification is made to buffer text.  This function
+;;; attempts to glump adjacent changes together so that excessive
+;;; fontification is avoided.  This function could easily be adapted
+;;; to other after-change-functions.
+(defun font-lock-after-change-function (beg end old-len)
+(let ((obeg (and font-lock-old-extent
+		   (extent-start-position font-lock-old-extent)))
+	(oend (and font-lock-old-extent
+		   (extent-end-position font-lock-old-extent)))
+	(bc-end (+ beg old-len)))
+;; If this change can't be merged into the glumped one,
+;; we need to fontify the glumped one right now.
+(if (and font-lock-old-extent
+	     (or (not (eq (current-buffer)
+			  (extent-object font-lock-old-extent)))
+		 (< bc-end obeg)
+		 (> beg oend)))
+	(font-lock-fontify-glumped-region))
+(if font-lock-old-extent
+	;; Update glumped region.
+	(progn
+	  ;; Any characters in the before-change region that are
+	  ;; outside the glumped region go into the glumped
+	  ;; before-change region.
+	  (if (> bc-end oend)
+	      (setq font-lock-old-len (+ font-lock-old-len (- bc-end oend))))
+	  (if (> obeg beg)
+	      (setq font-lock-old-len (+ font-lock-old-len (- obeg beg))))
+	  ;; New glumped region is the union of the glumped region
+	  ;; and the new region.
+	  (set-extent-endpoints font-lock-old-extent
+				(min obeg beg)
+				(max oend end)))
+;; No glumped region, so create one.
+(setq font-lock-old-extent (make-extent beg end))
+(set-extent-property font-lock-old-extent 'detachable nil)
+(set-extent-property font-lock-old-extent 'end-open nil)
+(setq font-lock-old-len old-len))
+(if font-lock-always-fontify-immediately
+	(font-lock-fontify-glumped-region))))
+(defun font-lock-after-change-function-1 (beg end old-len)
+(if (null font-lock-mode)
+nil
+(save-excursion
+(save-restriction
+	;; if we don't widen, then fill-paragraph (and any command that
+	;; operates on a narrowed region) confuses things, because the C
+	;; code will fail to realize that we're inside a comment.
+	(widen)
+	(save-match-data
+	  (let ((zmacs-region-stays zmacs-region-stays)) ; protect from change!
+	    (goto-char beg)
+	    ;; Maybe flush the internal cache used by syntactically-sectionize.
+	    ;; (It'd be nice if this was more automatic.)  Any deletions mean
+	    ;; the cache is invalid, and insertions at beginning or end of line
+	    ;; mean that the bol cache might be invalid.
+;;	    (if (or (> old-len 0) (bobp) (= (preceding-char) ?\n))
+;;		(buffer-syntactic-context-flush-cache))
+	    ;; Always recompute the whole line.
+	    (goto-char end)
+	    (forward-line 1)
+	    (setq end (point))
+	    (goto-char beg)
+	    (beginning-of-line)
+	    (setq beg (point))
+	    ;; Rescan between start of line from `beg' and start of line after
+	    ;; `end'.
+	    (font-lock-fontify-region beg end)))))))
+;; Syntactic fontification functions.
+;; Note: Here is the FSF version.  Our version is much faster because
+;; of the C support we provide.  This may be useful for reference,
+;; however, and perhaps there is something useful here that should
+;; be merged into our version.
+;;
+;(defun font-lock-fontify-syntactically-region (start end &optional loudly)
+;  "Put proper face on each string and comment between START and END.
+;START should be at the beginning of a line."
+;  (let ((synstart (if comment-start-skip
+;		       (concat "\\s\"\\|" comment-start-skip)
+;		     "\\s\""))
+;	 (comstart (if comment-start-skip
+;		       (concat "\\s<\\|" comment-start-skip)
+;		     "\\s<"))
+;	 state prev prevstate)
+;    (if loudly (message "Fontifying %s... (syntactically...)" (buffer-name)))
+;    (save-restriction
+;      (widen)
+;      (goto-char start)
+;      ;;
+;      ;; Find the state at the `beginning-of-line' before `start'.
+;      (if (eq start font-lock-cache-position)
+;	   ;; Use the cache for the state of `start'.
+;	   (setq state font-lock-cache-state)
+;	 ;; Find the state of `start'.
+;	 (if (null font-lock-beginning-of-syntax-function)
+;	     ;; Use the state at the previous cache position, if any, or
+;	     ;; otherwise calculate from `point-min'.
+;	     (if (or (null font-lock-cache-position)
+;		     (< start font-lock-cache-position))
+;		 (setq state (parse-partial-sexp (point-min) start))
+;	       (setq state (parse-partial-sexp font-lock-cache-position start
+;					       nil nil font-lock-cache-state)))
+;	   ;; Call the function to move outside any syntactic block.
+;	   (funcall font-lock-beginning-of-syntax-function)
+;	   (setq state (parse-partial-sexp (point) start)))
+;	 ;; Cache the state and position of `start'.
+;	 (setq font-lock-cache-state state
+;	       font-lock-cache-position start))
+;      ;;
+;      ;; If the region starts inside a string, show the extent of it.
+;      (if (nth 3 state)
+;	   (let ((beg (point)))
+;	     (while (and (re-search-forward "\\s\"" end 'move)
+;			 (nth 3 (parse-partial-sexp beg (point)
+;						    nil nil state))))
+;	     (put-text-property beg (point) 'face font-lock-string-face)
+;	     (setq state (parse-partial-sexp beg (point) nil nil state))))
+;      ;;
+;      ;; Likewise for a comment.
+;      (if (or (nth 4 state) (nth 7 state))
+;	   (let ((beg (point)))
+;	     (save-restriction
+;	       (narrow-to-region (point-min) end)
+;	       (condition-case nil
+;		   (progn
+;		     (re-search-backward comstart (point-min) 'move)
+;		     (forward-comment 1)
+;		     ;; forward-comment skips all whitespace,
+;		     ;; so go back to the real end of the comment.
+;		     (skip-chars-backward " \t"))
+;		 (error (goto-char end))))
+;	     (put-text-property beg (point) 'face font-lock-comment-face)
+;	     (setq state (parse-partial-sexp beg (point) nil nil state))))
+;      ;;
+;      ;; Find each interesting place between here and `end'.
+;      (while (and (< (point) end)
+;		   (setq prev (point) prevstate state)
+;		   (re-search-forward synstart end t)
+;		   (progn
+;		     ;; Clear out the fonts of what we skip over.
+;		     (remove-text-properties prev (point) '(face nil))
+;		     ;; Verify the state at that place
+;		     ;; so we don't get fooled by \" or \;.
+;		     (setq state (parse-partial-sexp prev (point)
+;						     nil nil state))))
+;	 (let ((here (point)))
+;	   (if (or (nth 4 state) (nth 7 state))
+;	       ;;
+;	       ;; We found a real comment start.
+;	       (let ((beg (match-beginning 0)))
+;		 (goto-char beg)
+;		 (save-restriction
+;		   (narrow-to-region (point-min) end)
+;		   (condition-case nil
+;		       (progn
+;			 (forward-comment 1)
+;			 ;; forward-comment skips all whitespace,
+;			 ;; so go back to the real end of the comment.
+;			 (skip-chars-backward " \t"))
+;		     (error (goto-char end))))
+;		 (put-text-property beg (point) 'face
+;				    font-lock-comment-face)
+;		 (setq state (parse-partial-sexp here (point) nil nil state)))
+;	     (if (nth 3 state)
+;		 ;;
+;		 ;; We found a real string start.
+;		 (let ((beg (match-beginning 0)))
+;		   (while (and (re-search-forward "\\s\"" end 'move)
+;			       (nth 3 (parse-partial-sexp here (point)
+;							  nil nil state))))
+;		   (put-text-property beg (point) 'face font-lock-string-face)
+;		   (setq state (parse-partial-sexp here (point)
+;						   nil nil state))))))
+;	 ;;
+;	 ;; Make sure `prev' is non-nil after the loop
+;	 ;; only if it was set on the very last iteration.
+;	 (setq prev nil)))
+;    ;;
+;    ;; Clean up.
+;    (and prev (remove-text-properties prev end '(face nil)))))
+(defun font-lock-fontify-syntactically-region (start end &optional loudly)
+"Put proper face on each string and comment between START and END.
+START should be at the beginning of a line."
+(if font-lock-keywords-only
+nil
+(if (and font-lock-verbose
+	     (>= (- end start) font-lock-message-threshold))
+	(display-message
+	 'progress
+	 (format "Fontifying %s... (syntactically...)" (buffer-name))))
+(font-lock-unfontify-region start end loudly)
+(goto-char start)
+(if (> end (point-max)) (setq end (point-max)))
+(syntactically-sectionize
+#'(lambda (s e context depth)
+	  (let (face)
+	    (cond ((eq context 'string)
+		   ;;#### Should only do this is Lisp-like modes!
+		   (setq face
+			 (if (= depth 1)
+			     ;; really we should only use this if
+			     ;;  in position 3 depth 1, but that's
+			     ;;  too expensive to compute.
+			     'font-lock-doc-string-face
+			   'font-lock-string-face)))
+		  ((or (eq context 'comment)
+		       (eq context 'block-comment))
+		   (setq face 'font-lock-comment-face)
+;		 ;; Don't fontify whitespace at the beginning of lines;
+;		 ;;  otherwise comment blocks may not line up with code.
+;		 ;; (This is sometimes a good idea, sometimes not; in any
+;		 ;; event it should be in C for speed --jwz)
+;		 (save-excursion
+;		     (goto-char s)
+;		     (while (prog1 (search-forward "\n" (1- e) 'move)
+;			      (setq face 'font-lock-comment-face)
+;			      (setq e (point)))
+;		       (skip-chars-forward " \t\n")
+;		       (setq s (point)))
+		   ))
+	    (font-lock-set-face s e face)))
+start end)
+))
+;;; Additional text property functions.
+;; The following three text property functions are not generally available (and
+;; it's not certain that they should be) so they are inlined for speed.
+;; The case for `fillin-text-property' is simple; it may or not be generally
+;; useful.  (Since it is used here, it is useful in at least one place.;-)
+;; However, the case for `append-text-property' and `prepend-text-property' is
+;; more complicated.  Should they remove duplicate property values or not?  If
+;; so, should the first or last duplicate item remain?  Or the one that was
+;; added?  In our implementation, the first duplicate remains.
+;; XEmacs: modified all these functions to use
+;; `put-nonduplicable-text-property' instead of `put-text-property', and
+;; the first one to take both SETPROP and MARKPROP, in accordance with the
+;; changed definitions of `font-lock-any-faces-p' and `font-lock-set-face'.
+(defsubst font-lock-fillin-text-property (start end setprop markprop value &optional object)
+"Fill in one property of the text from START to END.
+Arguments PROP and VALUE specify the property and value to put where none are
+already in place.  Therefore existing property values are not overwritten.
+Optional argument OBJECT is the string or buffer containing the text."
+(let ((start (text-property-any start end markprop nil object)) next)
+(while start
+(setq next (next-single-property-change start markprop object end))
+(put-nonduplicable-text-property start next setprop value object)
+(put-nonduplicable-text-property start next markprop value object)
+(setq start (text-property-any next end markprop nil object)))))
+;; This function (from simon's unique.el) is rewritten and inlined for speed.
+;(defun unique (list function)
+;  "Uniquify LIST, deleting elements using FUNCTION.
+;Return the list with subsequent duplicate items removed by side effects.
+;FUNCTION is called with an element of LIST and a list of elements from LIST,
+;and should return the list of elements with occurrences of the element removed,
+;i.e., a function such as `delete' or `delq'.
+;This function will work even if LIST is unsorted.  See also `uniq'."
+;  (let ((list list))
+;    (while list
+;      (setq list (setcdr list (funcall function (car list) (cdr list))))))
+;  list)
+(defsubst font-lock-unique (list)
+"Uniquify LIST, deleting elements using `delq'.
+Return the list with subsequent duplicate items removed by side effects."
+(let ((list list))
+(while list
+(setq list (setcdr list (delq (car list) (cdr list))))))
+list)
+;; A generalisation of `facemenu-add-face' for any property, but without the
+;; removal of inactive faces via `facemenu-discard-redundant-faces' and special
+;; treatment of `default'.  Uses `unique' to remove duplicate property values.
+(defsubst font-lock-prepend-text-property (start end prop value &optional object)
+"Prepend to one property of the text from START to END.
+Arguments PROP and VALUE specify the property and value to prepend to the value
+already in place.  The resulting property values are always lists, and unique.
+Optional argument OBJECT is the string or buffer containing the text."
+(let ((val (if (listp value) value (list value))) next prev)
+(while (/= start end)
+(setq next (next-single-property-change start prop object end)
+	    prev (get-text-property start prop object))
+(put-text-property
+start next prop
+(font-lock-unique (append val (if (listp prev) prev (list prev))))
+object)
+(setq start next))))
+(defsubst font-lock-append-text-property (start end prop value &optional object)
+"Append to one property of the text from START to END.
+Arguments PROP and VALUE specify the property and value to append to the value
+already in place.  The resulting property values are always lists, and unique.
+Optional argument OBJECT is the string or buffer containing the text."
+(let ((val (if (listp value) value (list value))) next prev)
+(while (/= start end)
+(setq next (next-single-property-change start prop object end)
+	    prev (get-text-property start prop object))
+(put-text-property
+start next prop
+(font-lock-unique (append (if (listp prev) prev (list prev)) val))
+object)
+(setq start next))))
+;;; Regexp fontification functions.
+(defsubst font-lock-apply-highlight (highlight)
+"Apply HIGHLIGHT following a match.
+HIGHLIGHT should be of the form MATCH-HIGHLIGHT, see `font-lock-keywords'."
+(let* ((match (nth 0 highlight))
+	 (start (match-beginning match)) (end (match-end match))
+	 (override (nth 2 highlight)))
+(let ((newface (nth 1 highlight)))
+(or (symbolp newface)
+	  (setq newface (eval newface)))
+(cond ((not start)
+	     ;; No match but we might not signal an error.
+	     (or (nth 3 highlight)
+		 (error "No match %d in highlight %S" match highlight)))
+	    ((= start end) nil)
+	    ((not override)
+	     ;; Cannot override existing fontification.
+	     (or (font-lock-any-faces-p start end)
+		 (font-lock-set-face start end newface)))
+	    ((eq override t)
+	     ;; Override existing fontification.
+	     (font-lock-set-face start end newface))
+	    ((eq override 'keep)
+	     ;; Keep existing fontification.
+	     (font-lock-fillin-text-property start end 'face 'font-lock
+					     newface))
+	    ((eq override 'prepend)
+	     ;; Prepend to existing fontification.
+	     (font-lock-prepend-text-property start end 'face newface))
+	    ((eq override 'append)
+	     ;; Append to existing fontification.
+	     (font-lock-append-text-property start end 'face newface))))))
+(defsubst font-lock-fontify-anchored-keywords (keywords limit)
+"Fontify according to KEYWORDS until LIMIT.
+KEYWORDS should be of the form MATCH-ANCHORED, see `font-lock-keywords',
+LIMIT can be modified by the value of its PRE-MATCH-FORM."
+(let ((matcher (nth 0 keywords)) (lowdarks (nthcdr 3 keywords)) highlights
+	;; Evaluate PRE-MATCH-FORM.
+	(pre-match-value (eval (nth 1 keywords))))
+;; Set LIMIT to value of PRE-MATCH-FORM or the end of line.
+(if (and (numberp pre-match-value) (> pre-match-value (point)))
+	(setq limit pre-match-value)
+(save-excursion (end-of-line) (setq limit (point))))
+(save-match-data
+;; Find an occurrence of `matcher' before `limit'.
+(while (if (stringp matcher)
+		 (re-search-forward matcher limit t)
+	       (funcall matcher limit))
+	;; Apply each highlight to this instance of `matcher'.
+	(setq highlights lowdarks)
+	(while highlights
+	  (font-lock-apply-highlight (car highlights))
+	  (setq highlights (cdr highlights)))))
+;; Evaluate POST-MATCH-FORM.
+(eval (nth 2 keywords))))
+(defun font-lock-fontify-keywords-region (start end &optional loudvar)
+"Fontify according to `font-lock-keywords' between START and END.
+START should be at the beginning of a line."
+(let ((loudly (and font-lock-verbose
+		     (>= (- end start) font-lock-message-threshold))))
+(let ((case-fold-search font-lock-keywords-case-fold-search)
+	  (keywords (cdr (if (eq (car-safe font-lock-keywords) t)
+			     font-lock-keywords
+			   (font-lock-compile-keywords))))
+	  (bufname (buffer-name)) (count 0)
+	  keyword matcher highlights)
+;;
+;; Fontify each item in `font-lock-keywords' from `start' to `end'.
+(while keywords
+	(if loudly (display-message
+		    'progress
+		    (format "Fontifying %s... (regexps..%s)" bufname
+			    (make-string (setq count (1+ count)) ?.))))
+	;;
+	;; Find an occurrence of `matcher' from `start' to `end'.
+	(setq keyword (car keywords) matcher (car keyword))
+	(goto-char start)
+	(while (and (< (point) end)
+		    (if (stringp matcher)
+			(re-search-forward matcher end t)
+		      (funcall matcher end)))
+	  ;; Apply each highlight to this instance of `matcher', which may be
+	  ;; specific highlights or more keywords anchored to `matcher'.
+	  (setq highlights (cdr keyword))
+	  (while highlights
+	    (if (numberp (car (car highlights)))
+		(let ((end (match-end (car (car highlights)))))
+		  (font-lock-apply-highlight (car highlights))
+		  ;; restart search just after the end of the
+		  ;; keyword so keywords can share bracketing
+		  ;; expressions.
+		  (and end (goto-char end)))
+	      (font-lock-fontify-anchored-keywords (car highlights) end))
+	    (setq highlights (cdr highlights))))
+	(setq keywords (cdr keywords))))
+(if loudly (display-message
+		'progress
+		(format "Fontifying %s... done." (buffer-name))))))
+;; Various functions.
+;; Turn off other related packages if they're on.  I prefer a hook. --sm.
+;; These explicit calls are easier to understand
+;; because people know what they will do.
+;; A hook is a mystery because it might do anything whatever. --rms.
+(defun font-lock-thing-lock-cleanup ()
+(cond ((and (boundp 'fast-lock-mode) fast-lock-mode)
+	 (fast-lock-mode -1))
+	((and (boundp 'lazy-lock-mode) lazy-lock-mode)
+	 (lazy-lock-mode -1))
+	((and (boundp 'lazy-shot-mode) lazy-shot-mode)
+	 (lazy-shot-mode -1))))
+;; Do something special for these packages after fontifying.  I prefer a hook.
+(defun font-lock-after-fontify-buffer ()
+(cond ((and (boundp 'fast-lock-mode) fast-lock-mode)
+	 (fast-lock-after-fontify-buffer))
+	((and (boundp 'lazy-lock-mode) lazy-lock-mode)
+	 (lazy-lock-after-fontify-buffer))))
+;; If the buffer is about to be reverted, it won't be fontified afterward.
+(defun font-lock-revert-setup ()
+(setq font-lock-fontified nil))
+;; If the buffer has just been reverted, normally that turns off
+;; Font Lock mode.  So turn the mode back on if necessary.
+(defalias 'font-lock-revert-cleanup 'turn-on-font-lock)
+(defun font-lock-compile-keywords (&optional keywords)
+;; Compile `font-lock-keywords' into the form (t KEYWORD ...) where KEYWORD
+;; is the (MATCHER HIGHLIGHT ...) shown in the variable's doc string.
+(let ((keywords (or keywords font-lock-keywords)))
+(setq font-lock-keywords
+(if (eq (car-safe keywords) t)
+	 keywords
+(cons t (mapcar 'font-lock-compile-keyword keywords))))))
+(defun font-lock-compile-keyword (keyword)
+(cond ((nlistp keyword)		; Just MATCHER
+	 (list keyword '(0 font-lock-keyword-face)))
+	((eq (car keyword) 'eval)	; Specified (eval . FORM)
+	 (font-lock-compile-keyword (eval (cdr keyword))))
+	((numberp (cdr keyword))	; Specified (MATCHER . MATCH)
+	 (list (car keyword) (list (cdr keyword) 'font-lock-keyword-face)))
+	((symbolp (cdr keyword))	; Specified (MATCHER . FACENAME)
+	 (list (car keyword) (list 0 (cdr keyword))))
+	((nlistp (nth 1 keyword))	; Specified (MATCHER . HIGHLIGHT)
+	 (list (car keyword) (cdr keyword)))
+	(t				; Hopefully (MATCHER HIGHLIGHT ...)
+	 keyword)))
+(defun font-lock-choose-keywords (keywords level)
+;; Return LEVELth element of KEYWORDS.  A LEVEL of nil is equal to a
+;; LEVEL of 0, a LEVEL of t is equal to (1- (length KEYWORDS)).
+(let ((level (if (not (consp level))
+		   level
+		 (cdr (or (assq major-mode level) (assq t level))))))
+(cond ((symbolp keywords)
+	   keywords)
+	  ((numberp level)
+	   (or (nth level keywords) (car (reverse keywords))))
+	  ((eq level t)
+	   (car (reverse keywords)))
+	  (t
+	   (car keywords)))))
+;;; Determining which set of font-lock keywords to use.
+(defun font-lock-find-font-lock-defaults (modesym)
+;; Get the defaults based on the major mode.
+(let (raw-defaults)
+;; I want a do-while loop!
+(while (progn
+	     (setq raw-defaults (get modesym 'font-lock-defaults))
+	     (and raw-defaults (symbolp raw-defaults)
+		  (setq modesym raw-defaults)))
+)
+raw-defaults))
+(defun font-lock-examine-syntax-table ()
+; Computes the value of font-lock-keywords-only for this buffer.
+(if (eq (syntax-table) (standard-syntax-table))
+;; Assume that modes which haven't bothered to install their own
+;; syntax table don't do anything syntactically interesting.
+;; Really, the standard-syntax-table shouldn't have comments and
+;; strings in it, but changing that now might break things.
+nil
+;; else map over the syntax table looking for strings or comments.
+(let (got-one)
+;; XEmacs 20.0 ...
+(if (fboundp 'map-syntax-table)
+	  (setq got-one
+		(map-syntax-table
+		 #'(lambda (key value)
+		     (memq (char-syntax-from-code value)
+			   '(?\" ?\< ?\> ?\$)))
+		 (syntax-table)))
+	;; older Emacsen.
+	(let ((i (1- (length (syntax-table)))))
+	  (while (>= i 0)
+	    (if (memq (char-syntax i) '(?\" ?\< ?\> ?\$))
+		(setq got-one t i 0))
+	    (setq i (1- i)))))
+(set (make-local-variable 'font-lock-keywords-only) (not got-one)))))
+;; font-lock-set-defaults is in fontl-hooks.el.
+;;;###autoload
+(defun font-lock-set-defaults-1 (&optional explicit-defaults)
+;; does everything that font-lock-set-defaults does except
+;; enable font-lock-mode.  This is called by `font-lock-mode'.
+;; Note that the return value is used!
+(if (and font-lock-defaults-computed (not explicit-defaults))
+;; nothing to do.
+nil
+(or font-lock-keywords
+	(let* ((defaults (or (and (not (eq t explicit-defaults))
+				  explicit-defaults)
+			     ;; in case modes decide to set
+			     ;; `font-lock-defaults' themselves,
+			     ;; as in FSF Emacs.
+			     font-lock-defaults
+			     (font-lock-find-font-lock-defaults major-mode)))
+	       (keywords (font-lock-choose-keywords
+			  (nth 0 defaults) font-lock-maximum-decoration)))
+	  ;; Keywords?
+	  (setq font-lock-keywords (if (fboundp keywords)
+				       (funcall keywords)
+				     (eval keywords)))
+	  (or font-lock-keywords
+	      ;; older way:
+	      ;; try to look for a variable `foo-mode-font-lock-keywords',
+	      ;; or similar.
+	      (let ((major (symbol-name major-mode))
+		    (try #'(lambda (n)
+			     (if (stringp n) (setq n (intern-soft n)))
+			     (if (and n
+				      (boundp n))
+				 n
+			       nil))))
+		(setq font-lock-keywords
+		      (symbol-value
+		       (or (funcall try (get major-mode 'font-lock-keywords))
+			   (funcall try (concat major "-font-lock-keywords"))
+			   (funcall try (and (string-match "-mode\\'" major)
+					     (concat (substring
+						      major 0
+						      (match-beginning 0))
+						     "-font-lock-keywords")))
+			   'font-lock-keywords)))))
+	  ;; Case fold?
+	  (if (>= (length defaults) 3)
+	      (setq font-lock-keywords-case-fold-search (nth 2 defaults))
+	    ;; older way:
+	    ;; look for a property 'font-lock-keywords-case-fold-search on
+	    ;; the major-mode symbol.
+	    (let* ((nonexist (make-symbol ""))
+		   (value (get major-mode 'font-lock-keywords-case-fold-search
+			       nonexist)))
+	      (if (not (eq nonexist value))
+		  (setq font-lock-keywords-case-fold-search value))))
+	  ;; Syntactic?
+	  (if (>= (length defaults) 2)
+	      (setq font-lock-keywords-only (nth 1 defaults))
+	    ;; older way:
+	    ;; cleverly examine the syntax table.
+	    (font-lock-examine-syntax-table))
+	  ;; Syntax table?
+	  (if (nth 3 defaults)
+	      (let ((slist (nth 3 defaults)))
+		(setq font-lock-syntax-table
+		      (copy-syntax-table (syntax-table)))
+		(while slist
+		  (modify-syntax-entry (car (car slist)) (cdr (car slist))
+				       font-lock-syntax-table)
+		  (setq slist (cdr slist)))))
+	  ;; Syntax function?
+	  (cond (defaults
+		  (setq font-lock-beginning-of-syntax-function
+			(nth 4 defaults)))
+		(t
+		 ;; older way:
+		 ;; defaults not specified at all, so use `beginning-of-defun'.
+		 (setq font-lock-beginning-of-syntax-function
+		       'beginning-of-defun)))))
+(setq font-lock-defaults-computed t)))
+;;; Initialization of faces.
+(defconst font-lock-face-list
+'(font-lock-comment-face
+font-lock-doc-string-face
+font-lock-string-face
+font-lock-keyword-face
+font-lock-function-name-face
+font-lock-variable-name-face
+font-lock-type-face
+font-lock-reference-face
+font-lock-preprocessor-face))
+(defun font-lock-reset-face (face)
+"Reset FACE its default state (from the X resource database).
+Returns whether it is indistinguishable from the default face."
+(reset-face face)
+(init-face-from-resources face)
+(face-differs-from-default-p face))
+(defun font-lock-reset-all-faces ()
+(mapcar 'font-lock-reset-face font-lock-face-list))
+(defun font-lock-add-fonts (tag-list)
+;; Underling comments looks terrible on tty's
+(if (featurep 'tty)
+(progn
+	(set-face-underline-p 'font-lock-comment-face nil 'global
+			      (append '(tty) tag-list) 'append)
+	(set-face-highlight-p 'font-lock-comment-face t 'global
+			      (append '(tty) tag-list)  'append)))
+(set-face-font 'font-lock-comment-face [italic] 'global tag-list 'append)
+(set-face-font 'font-lock-string-face [italic] 'global tag-list 'append)
+(set-face-font 'font-lock-doc-string-face [italic] 'global tag-list 'append)
+(set-face-font 'font-lock-function-name-face [bold] 'global tag-list 'append)
+(set-face-font 'font-lock-variable-name-face [bold] 'global tag-list 'append)
+(set-face-font 'font-lock-keyword-face [bold] 'global tag-list 'append)
+(set-face-font 'font-lock-preprocessor-face [bold-italic] 'global tag-list
+		  'append)
+(set-face-font 'font-lock-type-face [italic] 'global tag-list 'append)
+(set-face-font 'font-lock-reference-face [bold] 'global tag-list 'append)
+nil)
+(defun font-lock-add-colors (tag-list)
+(set-face-foreground 'font-lock-comment-face "red" 'global tag-list 'append)
+;(set-face-font 'font-lock-comment-face [italic] 'global tag-list 'append)
+(set-face-foreground 'font-lock-string-face "green4" 'global tag-list
+		       'append)
+(set-face-foreground 'font-lock-string-face "green" 'global tag-list
+		       'append)
+(set-face-foreground 'font-lock-doc-string-face "green4" 'global tag-list
+		       'append)
+(set-face-foreground 'font-lock-doc-string-face "green" 'global tag-list
+		       'append)
+(set-face-foreground 'font-lock-function-name-face "blue3" 'global tag-list
+		       'append)
+(set-face-foreground 'font-lock-function-name-face "blue" 'global tag-list
+		       'append)
+(set-face-foreground 'font-lock-variable-name-face "blue3" 'global tag-list
+		       'append)
+(set-face-foreground 'font-lock-variable-name-face "blue" 'global tag-list
+		       'append)
+(set-face-foreground 'font-lock-reference-face "red3" 'global
+		       tag-list 'append)
+(set-face-foreground 'font-lock-reference-face "red" 'global tag-list
+		       'append)
+(set-face-foreground 'font-lock-keyword-face "orange" 'global tag-list
+		       'append)
+;(set-face-font 'font-lock-keyword-face [bold] 'global tag-list 'append)
+(set-face-foreground 'font-lock-preprocessor-face "blue3" 'global tag-list
+		       'append)
+(set-face-foreground 'font-lock-preprocessor-face "blue" 'global tag-list
+		       'append)
+;(set-face-font 'font-lock-preprocessor-face [bold] 'global tag-list 'append)
+(set-face-foreground 'font-lock-type-face "#6920ac" 'global tag-list 'append)
+nil)
+(defun font-lock-apply-defaults (function tag-list)
+(if (and (listp tag-list)
+	   (eq 'or (car tag-list)))
+(mapcar #'(lambda (x)
+		  (font-lock-apply-defaults function x))
+	      (cdr tag-list))
+(if tag-list
+	(if (not (valid-specifier-tag-set-p tag-list))
+	    (warn "Invalid tag set found: %s" tag-list)
+	  (funcall function tag-list)))))
+(defun font-lock-recompute-variables ()
+;; Is this a Draconian thing to do?
+(mapcar #'(lambda (buffer)
+	      (save-excursion
+		(set-buffer buffer)
+		(font-lock-mode 0)
+		(font-lock-set-defaults t)))
+	  (buffer-list)))
+;; Backwards-compatible crud.
+(defun font-lock-use-default-fonts ()
+"Reset the font-lock faces to a default set of fonts."
+(interactive)
+(font-lock-reset-all-faces)
+(font-lock-add-fonts nil))
+(defun font-lock-use-default-colors ()
+"Reset the font-lock faces to a default set of colors."
+(interactive)
+(font-lock-reset-all-faces)
+(font-lock-add-colors nil))
+(defun font-lock-use-default-minimal-decoration ()
+"Reset the font-lock patterns to a fast, minimal set of decorations."
+(and font-lock-maximum-decoration
+(setq font-lock-maximum-decoration nil)
+(font-lock-recompute-variables)))
+(defun font-lock-use-default-maximal-decoration ()
+"Reset the font-lock patterns to a larger set of decorations."
+(and (not (eq t font-lock-maximum-decoration))
+(setq font-lock-maximum-decoration t)
+(font-lock-recompute-variables)))
+;;;;;;;;;;;;;;;;;;;;;;         keywords         ;;;;;;;;;;;;;;;;;;;;;;
+;;; Various major-mode interfaces.
+;;; Probably these should go in with the source of the respective major modes.
+;; The defaults and keywords listed here should perhaps be moved into
+;; mode-specific files.
+;; For C and Lisp modes we use `beginning-of-defun', rather than nil,
+;; for SYNTAX-BEGIN.  Thus the calculation of the cache is usually
+;; faster but not infallible, so we risk mis-fontification.  --sm.
+(put 'c-mode 'font-lock-defaults
+'((c-font-lock-keywords
+	c-font-lock-keywords-1 c-font-lock-keywords-2 c-font-lock-keywords-3)
+nil nil ((?_ . "w")) beginning-of-defun))
+(put 'c++-c-mode 'font-lock-defaults 'c-mode)
+(put 'elec-c-mode 'font-lock-defaults 'c-mode)
+(put 'c++-mode 'font-lock-defaults
+'((c++-font-lock-keywords
+	c++-font-lock-keywords-1 c++-font-lock-keywords-2
+	c++-font-lock-keywords-3)
+nil nil ((?_ . "w") (?~ . "w")) beginning-of-defun))
+(put 'java-mode 'font-lock-defaults
+'((java-font-lock-keywords
+	java-font-lock-keywords-1 java-font-lock-keywords-2
+	java-font-lock-keywords-3)
+nil nil ((?_ . "w")) beginning-of-defun
+(font-lock-mark-block-function . mark-defun)))
+(put 'lisp-mode 'font-lock-defaults
+'((lisp-font-lock-keywords
+	lisp-font-lock-keywords-1 lisp-font-lock-keywords-2)
+nil nil
+((?: . "w") (?- . "w") (?* . "w") (?+ . "w") (?. . "w") (?< . "w")
+	(?> . "w") (?= . "w") (?! . "w") (?? . "w") (?$ . "w") (?% . "w")
+	(?_ . "w") (?& . "w") (?~ . "w") (?^ . "w") (?/ . "w"))
+beginning-of-defun))
+(put 'emacs-lisp-mode 'font-lock-defaults 'lisp-mode)
+(put 'lisp-interaction-mode 'font-lock-defaults 'lisp-mode)
+(put 'scheme-mode 'font-lock-defaults
+'(scheme-font-lock-keywords
+nil t
+((?: . "w") (?- . "w") (?* . "w") (?+ . "w") (?. . "w") (?< . "w")
+	(?> . "w") (?= . "w") (?! . "w") (?? . "w") (?$ . "w") (?% . "w")
+	(?_ . "w") (?& . "w") (?~ . "w") (?^ . "w") (?/ . "w"))
+beginning-of-defun))
+(put 'inferior-scheme-mode 'font-lock-defaults 'scheme-mode)
+(put 'scheme-interaction-mode 'font-lock-defaults 'scheme-mode)
+(put 'tex-mode 'font-lock-defaults
+;; For TeX modes we could use `backward-paragraph' for the same reason.
+'(tex-font-lock-keywords nil nil ((?$ . "\""))))
+;; the nine billion names of TeX mode...
+(put 'bibtex-mode	'font-lock-defaults 'tex-mode)
+(put 'plain-tex-mode	'font-lock-defaults 'tex-mode)
+(put 'slitex-tex-mode	'font-lock-defaults 'tex-mode)
+(put 'SliTeX-mode	'font-lock-defaults 'tex-mode)
+(put 'slitex-mode	'font-lock-defaults 'tex-mode)
+(put 'latex-tex-mode	'font-lock-defaults 'tex-mode)
+(put 'LaTex-tex-mode	'font-lock-defaults 'tex-mode)
+(put 'latex-mode        'font-lock-defaults 'tex-mode)
+(put 'LaTeX-mode        'font-lock-defaults 'tex-mode)
+(put 'japanese-LaTeX-mode 'font-lock-defaults 'tex-mode)
+(put 'japanese-SliTeX-mode 'font-lock-defaults 'tex-mode)
+(put 'FoilTeX-mode	'font-lock-defaults 'tex-mode)
+(put 'LATeX-MoDe	'font-lock-defaults 'tex-mode)
+(put 'lATEx-mODe	'font-lock-defaults 'tex-mode)
+;; ok, this is getting a bit silly ...
+(put 'eDOm-xETAl	'font-lock-defaults 'tex-mode)
+;;; Various regexp information shared by several modes.
+;;; Information specific to a single mode should go in its load library.
+(defconst lisp-font-lock-keywords-1
+(list
+;; Anything not a variable or type declaration is fontified as a function.
+;; It would be cleaner to allow preceding whitespace, but it would also be
+;; about five times slower.
+(list (concat "^(\\(def\\("
+		  ;; Variable declarations.
+		  "\\(const\\(\\|ant\\)\\|ine-key\\(\\|-after\\)\\|var\\)\\|"
+		  ;; Structure declarations.
+		  "\\(class\\|struct\\|type\\)\\|"
+		  ;; Everything else is a function declaration.
+		  "\\([^ \t\n\(\)]+\\)"
+		  "\\)\\)\\>"
+		  ;; Any whitespace and declared object.
+		  "[ \t'\(]*"
+		  "\\([^ \t\n\)]+\\)?")
+	  '(1 font-lock-keyword-face)
+	  '(8 (cond ((match-beginning 3) 'font-lock-variable-name-face)
+		    ((match-beginning 6) 'font-lock-type-face)
+		    (t 'font-lock-function-name-face))
+	      nil t))
+)
+"Subdued level highlighting Lisp modes.")
+(defconst lisp-font-lock-keywords-2
+(append lisp-font-lock-keywords-1
+(list
+;;
+;; Control structures.  ELisp and CLisp combined.
+;;
+;;(regexp-opt
+;;  '("cond" "if" "while" "let" "let*" "prog" "progn" "prog1"
+;;    "prog2" "progv" "catch" "throw" "save-restriction"
+;;    "save-excursion" "save-window-excursion"
+;;    "save-current-buffer" "with-current-buffer"
+;;    "with-temp-file" "with-temp-buffer" "with-output-to-string"
+;;    "with-string-as-buffer-contents"
+;;    "save-selected-window" "save-match-data" "unwind-protect"
+;;    "condition-case" "track-mouse" "autoload"
+;;    "eval-after-load" "eval-and-compile" "eval-when-compile"
+;;    "when" "unless" "do" "dolist" "dotimes" "flet" "labels"
+;;    "lambda" "return" "return-from"))
+(cons
+(concat
+"(\\("
+"autoload\\|c\\(atch\\|ond\\(ition-case\\)?\\)\\|do\\(list\\|"
+"times\\)?\\|eval-\\(a\\(fter-load\\|nd-compile\\)\\|when-compile\\)\\|"
+"flet\\|if\\|l\\(a\\(bels\\|mbda\\)\\|et\\*?\\)\\|"
+"prog[nv12\\*]?\\|return\\(-from\\)?\\|save-\\(current-buffer\\|"
+"excursion\\|match-data\\|restriction\\|selected-window\\|"
+"window-excursion\\)\\|t\\(hrow\\|rack-mouse\\)\\|un\\(less\\|"
+"wind-protect\\)\\|w\\(h\\(en\\|ile\\)\\|ith-\\(current-buffer\\|"
+"output-to-string\\|string-as-buffer-contents\\|temp-\\(buffer\\|"
+"file\\)\\)\\)"
+"\\)\\>") 1)
+;;
+;; Words inside \\[] tend to be for `substitute-command-keys'.
+'("\\\\\\\\\\[\\(\\sw+\\)]" 1 font-lock-reference-face prepend)
+;;
+;; Words inside `' tend to be symbol names.
+'("`\\(\\sw\\sw+\\)'" 1 font-lock-reference-face prepend)
+;;
+;; CLisp `:' keywords as references.
+'("\\<:\\sw+\\>" 0 font-lock-reference-face prepend)
+;;
+;; ELisp and CLisp `&' keywords as types.
+'("\\<\\&\\(optional\\|rest\\|whole\\)\\>" . font-lock-type-face)
+))
+"Gaudy level highlighting for Lisp modes.")
+(defvar lisp-font-lock-keywords lisp-font-lock-keywords-1
+"Default expressions to highlight in Lisp modes.")
+;; The previous version, before replacing it with the FSF version.
+;(defconst lisp-font-lock-keywords-1 (purecopy
+; '(;;
+;   ;; highlight defining forms.  This doesn't work too nicely for
+;   ;; (defun (setf foo) ...) but it does work for (defvar foo) which
+;   ;; is more important.
+;   ("^(def[-a-z]+\\s +\\([^ \t\n\)]+\\)" 1 font-lock-function-name-face)
+;   ;;
+;   ;; highlight CL keywords (three clauses seems faster than one)
+;   ("\\s :\\(\\(\\sw\\|\\s_\\)+\\)\\>" . 1)
+;   ("(:\\(\\(\\sw\\|\\s_\\)+\\)\\>" . 1)
+;   ("':\\(\\(\\sw\\|\\s_\\)+\\)\\>" . 1)
+;   ;;
+;   ;; this is highlights things like (def* (setf foo) (bar baz)), but may
+;   ;; be slower (I haven't really thought about it)
+;;   ("^(def[-a-z]+\\s +\\(\\s(\\S)*\\s)\\|\\S(\\S *\\)"
+;;    1 font-lock-function-name-face)
+;   ))
+; "For consideration as a value of `lisp-font-lock-keywords'.
+;This does fairly subdued highlighting.")
+;
+;(defconst lisp-font-lock-keywords-2 (purecopy
+;  (append lisp-font-lock-keywords-1
+;   '(;;
+;     ;; Highlight control structures
+;     ("(\\(cond\\|if\\|when\\|unless\\|[ec]?\\(type\\)?case\\)[ \t\n]" . 1)
+;     ("(\\(while\\|do\\|let\\*?\\|flet\\|labels\\|prog[nv12*]?\\)[ \t\n]" . 1)
+;     ("(\\(do\\*\\|dotimes\\|dolist\\|loop\\)[ \t\n]" . 1)
+;     ("(\\(catch\\|\\throw\\|block\\|return\\|return-from\\)[ \t\n]" . 1)
+;     ("(\\(save-restriction\\|save-window-restriction\\)[ \t\n]" . 1)
+;     ("(\\(save-excursion\\|unwind-protect\\|condition-case\\)[ \t\n]" . 1)
+;     ;;
+;     ;; highlight function names in emacs-lisp docstrings (in the syntax
+;     ;; that substitute-command-keys understands.)
+;     ("\\\\\\\\\\[\\([^]\\\n]+\\)]" 1 font-lock-keyword-face t)
+;     ;;
+;     ;; highlight words inside `' which tend to be function names
+;     ("`\\([-a-zA-Z0-9_][-a-zA-Z0-9_][-a-zA-Z0-9_.]+\\)'"
+;      1 font-lock-keyword-face t)
+;     )))
+; "For consideration as a value of `lisp-font-lock-keywords'.
+;
+;This does a lot more highlighting.")
+(defvar scheme-font-lock-keywords
+(eval-when-compile
+(list
+;;
+;; Declarations.  Hannes Haug <hannes.haug@student.uni-tuebingen.de> says
+;; this works for SOS, STklos, SCOOPS, Meroon and Tiny CLOS.
+(list (concat "(\\(define\\("
+		   ;; Function names.
+		   "\\(\\|-\\(generic\\(\\|-procedure\\)\\|method\\)\\)\\|"
+		   ;; Macro names, as variable names.  A bit dubious, this.
+		   "\\(-syntax\\)\\|"
+		   ;; Class names.
+		   "\\(-class\\)"
+		   "\\)\\)\\>"
+		   ;; Any whitespace and declared object.
+		   "[ \t]*(?"
+		   "\\(\\sw+\\)?")
+	   '(1 font-lock-keyword-face)
+	   '(8 (cond ((match-beginning 3) 'font-lock-function-name-face)
+		     ((match-beginning 6) 'font-lock-variable-name-face)
+		     (t 'font-lock-type-face))
+	       nil t))
+;;
+;; Control structures.
+;(regexp-opt '("begin" "call-with-current-continuation" "call/cc"
+;	       "call-with-input-file" "call-with-output-file" "case" "cond"
+;	       "do" "else" "for-each" "if" "lambda"
+;	       "let\\*?" "let-syntax" "letrec" "letrec-syntax"
+;	       ;; Hannes Haug <hannes.haug@student.uni-tuebingen.de> wants:
+;	       "and" "or" "delay"
+;	       ;; Stefan Monnier <stefan.monnier@epfl.ch> says don't bother:
+;	       ;;"quasiquote" "quote" "unquote" "unquote-splicing"
+;	       "map" "syntax" "syntax-rules"))
+(cons
+(concat "(\\("
+	      "and\\|begin\\|c\\(a\\(ll\\(-with-\\(current-continuation\\|"
+	      "input-file\\|output-file\\)\\|/cc\\)\\|se\\)\\|ond\\)\\|"
+	      "d\\(elay\\|o\\)\\|else\\|for-each\\|if\\|"
+	      "l\\(ambda\\|et\\(-syntax\\|\\*?\\|rec\\(\\|-syntax\\)\\)\\)\\|"
+	      "map\\|or\\|syntax\\(\\|-rules\\)"
+	      "\\)\\>") 1)
+;;
+;; David Fox <fox@graphics.cs.nyu.edu> for SOS/STklos class specifiers.
+'("\\<<\\sw+>\\>" . font-lock-type-face)
+;;
+;; Scheme `:' keywords as references.
+'("\\<:\\sw+\\>" . font-lock-reference-face)
+))
+"Default expressions to highlight in Scheme modes.")
+;; The previous version, before replacing it with the FSF version.
+;(defconst scheme-font-lock-keywords (purecopy
+; '(("(define[ \t]+(?\\([^ \t\n\)]+\\)" 1 font-lock-function-name-face)
+;   ("(\\(cond\\|lambda\\|begin\\|if\\|else\\|case\\|do\\)[ \t\n]" . 1)
+;   ("(\\(\\|letrec\\|let\\*?\\|set!\\|and\\|or\\)[ \t\n]" . 1)
+;   ("(\\(quote\\|unquote\\|quasiquote\\|unquote-splicing\\)[ \t\n]" . 1)
+;   ("(\\(syntax\\|syntax-rules\\|define-syntax\\|let-syntax\\|letrec-syntax\\)[ \t\n]" . 1)))
+;  "Expressions to highlight in Scheme buffers.")
+(defconst c-font-lock-keywords-1 nil
+"Subdued level highlighting for C modes.")
+(defconst c-font-lock-keywords-2 nil
+"Medium level highlighting for C modes.")
+(defconst c-font-lock-keywords-3 nil
+"Gaudy level highlighting for C modes.")
+(defconst c++-font-lock-keywords-1 nil
+"Subdued level highlighting for C++ modes.")
+(defconst c++-font-lock-keywords-2 nil
+"Medium level highlighting for C++ modes.")
+(defconst c++-font-lock-keywords-3 nil
+"Gaudy level highlighting for C++ modes.")
+(defun font-lock-match-c++-style-declaration-item-and-skip-to-next (limit)
+;; Match, and move over, any declaration/definition item after point.
+;; The expect syntax of an item is "word" or "word::word", possibly ending
+;; with optional whitespace and a "(".  Everything following the item (but
+;; belonging to it) is expected to by skip-able by `forward-sexp', and items
+;; are expected to be separated with a "," or ";".
+(if (looking-at "[ \t*&]*\\(\\sw+\\)\\(::\\(\\sw+\\)\\)?[ \t]*\\((\\)?")
+(save-match-data
+	(condition-case nil
+	    (save-restriction
+	      ;; Restrict to the end of line, currently guaranteed to be LIMIT.
+	      (narrow-to-region (point-min) limit)
+	      (goto-char (match-end 1))
+	      ;; Move over any item value, etc., to the next item.
+	      (while (not (looking-at "[ \t]*\\([,;]\\|$\\)"))
+		(goto-char (or (scan-sexps (point) 1) (point-max))))
+	      (goto-char (match-end 0)))
+	  (error t)))))
+(let ((c-keywords
+;      ("break" "continue" "do" "else" "for" "if" "return" "switch" "while")
+"break\\|continue\\|do\\|else\\|for\\|if\\|return\\|switch\\|while")
+(c-type-types
+;      ("auto" "extern" "register" "static" "typedef" "struct" "union" "enum"
+;	"signed" "unsigned" "short" "long" "int" "char" "float" "double"
+;	"void" "volatile" "const")
+(concat "auto\\|c\\(har\\|onst\\)\\|double\\|e\\(num\\|xtern\\)\\|"
+	       "float\\|int\\|long\\|register\\|"
+	       "s\\(hort\\|igned\\|t\\(atic\\|ruct\\)\\)\\|typedef\\|"
+	       "un\\(ion\\|signed\\)\\|vo\\(id\\|latile\\)"))	; 6 ()s deep.
+(c++-keywords
+;      ("break" "continue" "do" "else" "for" "if" "return" "switch" "while"
+;	"asm" "catch" "delete" "new" "operator" "sizeof" "this" "throw" "try"
+;       "protected" "private" "public")
+(concat "asm\\|break\\|c\\(atch\\|ontinue\\)\\|d\\(elete\\|o\\)\\|"
+	       "else\\|for\\|if\\|new\\|"
+	       "p\\(r\\(ivate\\|otected\\)\\|ublic\\)\\|return\\|"
+	       "s\\(izeof\\|witch\\)\\|t\\(h\\(is\\|row\\)\\|ry\\)\\|while"))
+(c++-type-types
+;      ("auto" "extern" "register" "static" "typedef" "struct" "union" "enum"
+;	"signed" "unsigned" "short" "long" "int" "char" "float" "double"
+;	"void" "volatile" "const" "class" "inline" "friend" "bool"
+;	"virtual" "complex" "template")
+(concat "auto\\|bool\\|c\\(har\\|lass\\|o\\(mplex\\|nst\\)\\)\\|"
+	       "double\\|e\\(num\\|xtern\\)\\|f\\(loat\\|riend\\)\\|"
+	       "in\\(line\\|t\\)\\|long\\|register\\|"
+	       "s\\(hort\\|igned\\|t\\(atic\\|ruct\\)\\)\\|"
+	       "t\\(emplate\\|ypedef\\)\\|un\\(ion\\|signed\\)\\|"
+	       "v\\(irtual\\|o\\(id\\|latile\\)\\)"))		; 11 ()s deep.
+(ctoken "\\(\\sw\\|\\s_\\|[:~*&]\\)+")
+)
+(setq c-font-lock-keywords-1
+(list
+;;
+;; These are all anchored at the beginning of line for speed.
+;;
+;; Fontify function name definitions (GNU style; without type on line).
+;; In FSF this has the simpler definition of "\\sw+" for ctoken.
+;; I'm not sure if ours is more correct.
+;; This is a subset of the next rule, and is slower when present. --dmoore
+;; (list (concat "^\\(" ctoken "\\)[ \t]*(") 1 'font-lock-function-name-face)
+;;
+;; fontify the names of functions being defined.
+;; FSF doesn't have this but I think it should be fast for us because
+;; our regexp routines are more intelligent than FSF's about handling
+;; anchored-at-newline. (When I added this hack in regex.c, it halved
+;; the time to do the regexp phase of font-lock for a C file!) Not
+;; including this discriminates against those who don't follow the
+;; GNU coding style. --ben
+;; x?x?x?y?z should always be: (x(xx?)?)?y?z --dmoore
+(list (concat
+	  "^\\("
+"\\(" ctoken "[ \t]+\\)"	; type specs; there can be no
+	  "\\("
+"\\(" ctoken "[ \t]+\\)"	; more than 3 tokens, right?
+"\\(" ctoken "[ \t]+\\)"
+	  "?\\)?\\)?"
+"\\([*&]+[ \t]*\\)?"		; pointer
+"\\(" ctoken "\\)[ \t]*(")	; name
+10 'font-lock-function-name-face)
+;;
+;; This is faster but not by much.  I don't see why not.
+;(list (concat "^\\(" ctoken "\\)[ \t]*(") 1 'font-lock-function-name-face)
+;;
+;; Added next two; they're both jolly-good fastmatch candidates so
+;; should be fast. --ben
+;;
+;; Fontify structure names (in structure definition form).
+(list (concat "^\\(typedef[ \t]+struct\\|struct\\|static[ \t]+struct\\)"
+	   "[ \t]+\\(" ctoken "\\)[ \t]*\\(\{\\|$\\)")
+2 'font-lock-function-name-face)
+;;
+;; Fontify case clauses.  This is fast because its anchored on the left.
+'("case[ \t]+\\(\\(\\sw\\|\\s_\\)+\\)[ \t]+:". 1)
+;;
+'("\\<\\(default\\):". 1)
+;; Fontify filenames in #include <...> preprocessor directives as strings.
+'("^#[ \t]*include[ \t]+\\(<[^>\"\n]+>\\)" 1 font-lock-string-face)
+;;
+;; Fontify function macro names.
+'("^#[ \t]*define[ \t]+\\(\\(\\sw+\\)(\\)" 2 font-lock-function-name-face)
+;;
+;; Fontify symbol names in #if ... defined preprocessor directives.
+'("^#[ \t]*if\\>"
+("\\<\\(defined\\)\\>[ \t]*(?\\(\\sw+\\)?" nil nil
+(1 font-lock-preprocessor-face) (2 font-lock-variable-name-face nil t)))
+;;
+;; Fontify symbol names in #elif ... defined preprocessor directives.
+'("^#[ \t]*elif\\>"
+("\\<\\(defined\\)\\>[ \t]*(?\\(\\sw+\\)?" nil nil
+(1 font-lock-preprocessor-face) (2 font-lock-variable-name-face nil t)))
+;;
+;; Fontify otherwise as symbol names, and the preprocessor directive names.
+'("^\\(#[ \t]*[a-z]+\\)\\>[ \t]*\\(\\sw+\\)?"
+(1 font-lock-preprocessor-face) (2 font-lock-variable-name-face nil t))
+))
+(setq c-font-lock-keywords-2
+(append c-font-lock-keywords-1
+(list
+;;
+;; Simple regexps for speed.
+;;
+;; Fontify all type specifiers.
+(cons (concat "\\<\\(" c-type-types "\\)\\>") 'font-lock-type-face)
+;;
+;; Fontify all builtin keywords (except case, default and goto; see below).
+(cons (concat "\\<\\(" c-keywords "\\)\\>") 'font-lock-keyword-face)
+;;
+;; Fontify case/goto keywords and targets, and case default/goto tags.
+'("\\<\\(case\\|goto\\)\\>[ \t]*\\([^ \t\n:;]+\\)?"
+(1 font-lock-keyword-face) (2 font-lock-reference-face nil t))
+'("^[ \t]*\\(\\sw+\\)[ \t]*:" 1 font-lock-reference-face)
+)))
+(setq c-font-lock-keywords-3
+(append c-font-lock-keywords-2
+;;
+;; More complicated regexps for more complete highlighting for types.
+;; We still have to fontify type specifiers individually, as C is so hairy.
+(list
+;;
+;; Fontify all storage classes and type specifiers, plus their items.
+(list (concat "\\<\\(" c-type-types "\\)\\>"
+		  "\\([ \t*&]+\\sw+\\>\\)*")
+	  ;; Fontify each declaration item.
+	  '(font-lock-match-c++-style-declaration-item-and-skip-to-next
+	    ;; Start with point after all type specifiers.
+	    (goto-char (or (match-beginning 8) (match-end 1)))
+	    ;; Finish with point after first type specifier.
+	    (goto-char (match-end 1))
+	    ;; Fontify as a variable or function name.
+	    (1 (if (match-beginning 4)
+		   font-lock-function-name-face
+		 font-lock-variable-name-face))))
+;;
+;; Fontify structures, or typedef names, plus their items.
+'("\\(}\\)[ \t*]*\\sw"
+(font-lock-match-c++-style-declaration-item-and-skip-to-next
+(goto-char (match-end 1)) nil
+(1 (if (match-beginning 4)
+	      font-lock-function-name-face
+	    font-lock-variable-name-face))))
+;;
+;; Fontify anything at beginning of line as a declaration or definition.
+'("^\\(\\sw+\\)\\>\\([ \t*]+\\sw+\\>\\)*"
+(1 font-lock-type-face)
+(font-lock-match-c++-style-declaration-item-and-skip-to-next
+(goto-char (or (match-beginning 2) (match-end 1))) nil
+(1 (if (match-beginning 4)
+	      font-lock-function-name-face
+	    font-lock-variable-name-face))))
+)))
+(setq c++-font-lock-keywords-1
+(append
+;;
+;; The list `c-font-lock-keywords-1' less that for function names.
+;; the simple function form regexp has been removed. --dmoore
+;;(cdr c-font-lock-keywords-1)
+c-font-lock-keywords-1
+;;
+;; Fontify function name definitions, possibly incorporating class name.
+(list
+'("^\\(\\sw+\\)\\(::\\(\\sw+\\)\\)?[ \t]*("
+(1 (if (match-beginning 2)
+	     font-lock-type-face
+	   font-lock-function-name-face))
+(3 (if (match-beginning 2) font-lock-function-name-face) nil t))
+)))
+(setq c++-font-lock-keywords-2
+(append c++-font-lock-keywords-1
+(list
+;;
+;; The list `c-font-lock-keywords-2' for C++ plus operator overloading.
+(cons (concat "\\<\\(" c++-type-types "\\)\\>") 'font-lock-type-face)
+;;
+;; Fontify operator function name overloading.
+'("\\<\\(operator\\)\\>[ \t]*\\([][)(><!=+-][][)(><!=+-]?\\)?"
+(1 font-lock-keyword-face) (2 font-lock-function-name-face nil t))
+;;
+;; Fontify case/goto keywords and targets, and case default/goto tags.
+'("\\<\\(case\\|goto\\)\\>[ \t]*\\([^ \t\n:;]+\\)?"
+(1 font-lock-keyword-face) (2 font-lock-reference-face nil t))
+'("^[ \t]*\\(\\sw+\\)[ \t]*:[^:]" 1 font-lock-reference-face)
+;;
+;; Fontify other builtin keywords.
+(cons (concat "\\<\\(" c++-keywords "\\)\\>") 'font-lock-keyword-face)
+)))
+(setq c++-font-lock-keywords-3
+(append c++-font-lock-keywords-2
+;;
+;; More complicated regexps for more complete highlighting for types.
+(list
+;;
+;; Fontify all storage classes and type specifiers, plus their items.
+(list (concat "\\<\\(" c++-type-types "\\)\\>"
+		  "\\([ \t*&]+\\sw+\\>\\)*")
+	  ;; Fontify each declaration item.
+	  '(font-lock-match-c++-style-declaration-item-and-skip-to-next
+	    ;; Start with point after all type specifiers.
+	    (goto-char (or (match-beginning 13) (match-end 1)))
+	    ;; Finish with point after first type specifier.
+	    (goto-char (match-end 1))
+	    ;; Fontify as a variable or function name.
+	    (1 (cond ((match-beginning 2) 'font-lock-type-face)
+		     ((match-beginning 4) 'font-lock-function-name-face)
+		     (t 'font-lock-variable-name-face)))
+	    (3 (if (match-beginning 4)
+		   'font-lock-function-name-face
+		 'font-lock-variable-name-face) nil t)))
+;;
+;; Fontify structures, or typedef names, plus their items.
+'("\\(}\\)[ \t*]*\\sw"
+(font-lock-match-c++-style-declaration-item-and-skip-to-next
+(goto-char (match-end 1)) nil
+(1 (if (match-beginning 4)
+	      font-lock-function-name-face
+	    font-lock-variable-name-face))))
+;;
+;; Fontify anything at beginning of line as a declaration or definition.
+'("^\\(\\sw+\\)\\>\\([ \t*]+\\sw+\\>\\)*"
+(1 font-lock-type-face)
+(font-lock-match-c++-style-declaration-item-and-skip-to-next
+(goto-char (or (match-beginning 2) (match-end 1))) nil
+(1 (cond ((match-beginning 2) 'font-lock-type-face)
+		((match-beginning 4) 'font-lock-function-name-face)
+		(t 'font-lock-variable-name-face)))
+(3 (if (match-beginning 4)
+	      'font-lock-function-name-face
+	    'font-lock-variable-name-face) nil t)))
+)))
+)
+(defvar c-font-lock-keywords c-font-lock-keywords-1
+"Default expressions to highlight in C mode.")
+(defvar c++-font-lock-keywords c++-font-lock-keywords-1
+"Default expressions to highlight in C++ mode.")
+;; The previous version, before replacing it with the FSF version.
+;(defconst c-font-lock-keywords-1 nil
+; "For consideration as a value of `c-font-lock-keywords'.
+;This does fairly subdued highlighting.")
+;
+;(defconst c-font-lock-keywords-2 nil
+; "For consideration as a value of `c-font-lock-keywords'.
+;This does a lot more highlighting.")
+;
+;(let ((storage "auto\\|extern\\|register\\|static\\|volatile")
+;      (prefixes "unsigned\\|short\\|long\\|const")
+;      (types (concat "int\\|long\\|char\\|float\\|double\\|void\\|struct\\|"
+;		      "union\\|enum\\|typedef"))
+;      (ctoken "\\(\\sw\\|\\s_\\|[:~*&]\\)+")
+;      )
+;  (setq c-font-lock-keywords-1 (purecopy
+;   (list
+;    ;; fontify preprocessor directives.
+;    '("^#[ \t]*[a-z]+" . font-lock-preprocessor-face)
+;    ;;
+;    ;; fontify names being defined.
+;    '("^#[ \t]*\\(define\\|undef\\)[ \t]+\\(\\(\\sw\\|\\s_\\)+\\)" 2
+;      font-lock-function-name-face)
+;    ;;
+;    ;; fontify other preprocessor lines.
+;    '("^#[ \t]*\\(if\\|ifn?def\\|elif\\)[ \t]+\\([^\n]+\\)"
+;      2 font-lock-function-name-face t)
+;    ;;
+;    ;; fontify the filename in #include <...>
+;    ;; don't need to do this for #include "..." because those were
+;    ;; already fontified as strings by the syntactic pass.
+;    ;; (Changed to not include the <> in the face, since "" aren't.)
+;    '("^#[ \t]*include[ \t]+<\\([^>\"\n]+\\)>" 1 font-lock-string-face)
+;    ;;
+;    ;; fontify the names of functions being defined.
+;    ;; I think this should be fast because it's anchored at bol, but it's not.
+;    (list (concat
+;	    "^\\(" ctoken "[ \t]+\\)?"	; type specs; there can be no
+;	    "\\(" ctoken "[ \t]+\\)?"	; more than 3 tokens, right?
+;	    "\\(" ctoken "[ \t]+\\)?"
+;	    "\\([*&]+[ \t]*\\)?"		; pointer
+;	    "\\(" ctoken "\\)[ \t]*(")	; name
+;	   8 'font-lock-function-name-face)
+;    ;;
+;    ;; This is faster but not by much.  I don't see why not.
+;;    (list (concat "^\\(" ctoken "\\)[ \t]*(") 1 'font-lock-function-name-face)
+;    ;;
+;    ;; Fontify structure names (in structure definition form).
+;    (list (concat "^\\(typedef[ \t]+struct\\|struct\\|static[ \t]+struct\\)"
+;		   "[ \t]+\\(" ctoken "\\)[ \t]*\\(\{\\|$\\)")
+;	   2 'font-lock-function-name-face)
+;    ;;
+;    ;; Fontify case clauses.  This is fast because its anchored on the left.
+;    '("case[ \t]+\\(\\(\\sw\\|\\s_\\)+\\):". 1)
+;    '("\\<\\(default\\):". 1)
+;    )))
+;
+;  (setq c-font-lock-keywords-2 (purecopy
+;   (append c-font-lock-keywords-1
+;    (list
+;     ;;
+;     ;; fontify all storage classes and type specifiers
+;     ;; types should be surrounded by non alphanumerics (Raymond Toy)
+;     (cons (concat "\\<\\(" storage "\\)\\>") 'font-lock-type-face)
+;     (list (concat "\\([^a-zA-Z0-9_]\\|^\\)\\("
+;		    types
+;		    "\\)\\([^a-zA-Z0-9_]\\|$\\)")
+;	    2 'font-lock-type-face)
+;     ;; fontify the prefixes now.  The types should have been fontified
+;     ;; previously.
+;     (list (concat "\\<\\(" prefixes "\\)[ \t]+\\(" types "\\)\\>")
+;	    1 'font-lock-type-face)
+;     ;;
+;     ;; fontify all builtin tokens
+;     (cons (concat
+;	     "[ \t]\\("
+;	     (mapconcat 'identity
+;	      '("for" "while" "do" "return" "goto" "case" "break" "switch"
+;		"if" "then" "else if" "else" "return" "continue" "default"
+;		)
+;	      "\\|")
+;	     "\\)[ \t\n(){};,]")
+;	    1)
+;     ;;
+;     ;; fontify case targets and goto-tags.  This is slow because the
+;     ;; expression is anchored on the right.
+;     "\\(\\(\\sw\\|\\s_\\)+\\):"
+;     ;;
+;     ;; Fontify variables declared with structures, or typedef names.
+;     '("}[ \t*]*\\(\\(\\sw\\|\\s_\\)+\\)[ \t]*[,;]"
+;	1 font-lock-function-name-face)
+;     ;;
+;     ;; Fontify global variables without a type.
+;;     '("^\\([_a-zA-Z0-9:~*]+\\)[ \t]*[[;={]" 1 font-lock-function-name-face)
+;
+;     ))))
+;  )
+;
+;
+;;; default to the gaudier variety?
+;;(defconst c-font-lock-keywords c-font-lock-keywords-2
+;;  "Additional expressions to highlight in C mode.")
+;(defconst c-font-lock-keywords c-font-lock-keywords-1
+;  "Additional expressions to highlight in C mode.")
+;
+;(defconst c++-font-lock-keywords-1 nil
+; "For consideration as a value of `c++-font-lock-keywords'.
+;This does fairly subdued highlighting.")
+;
+;(defconst c++-font-lock-keywords-2 nil
+; "For consideration as a value of `c++-font-lock-keywords'.
+;This does a lot more highlighting.")
+;
+;(let ((ctoken "\\(\\sw\\|\\s_\\|[:~*&]\\)+")
+;      (c++-types (concat "complex\\|public\\|private\\|protected\\|virtual\\|"
+;			  "friend\\|inline"))
+;      c++-font-lock-keywords-internal-1
+;      c++-font-lock-keywords-internal-2
+;      )
+;  (setq c++-font-lock-keywords-internal-1 (purecopy
+;   (list
+;    ;;
+;    ;; fontify friend operator functions
+;    '("^\\(operator[^(]*\\)(" 1 font-lock-function-name-face)
+;    '("^\\(operator[ \\t]*([ \\t]*)[^(]*\\)(" 1 font-lock-function-name-face)
+;
+;    ;; fontify the class names only in the definition
+;    (list (concat "^class[ \t]+" ctoken "[ \t\n{: ;]") 1
+;	   'font-lock-function-name-face)
+;
+;    (list (concat
+;	    "^\\(" ctoken "[ \t]+\\)?" ; type specs; there can be no
+;	    "\\(" ctoken "[ \t]+\\)?" ; more than 3 tokens, right?
+;	    "\\(" ctoken "[ \t]+\\)?"
+;	    "\\(\\*+[ \t]*\\)?"	; pointer
+;	    "\\(" ctoken "\\(::\\)?~?\\(\\(operator[ \t]*[^ \ta-zA-Z]+\\)\\|"
+;	    ctoken "\\)\\)[ \t]*(") ; name
+;	   8 'font-lock-function-name-face t)
+;    )))
+;
+;  (setq c++-font-lock-keywords-internal-2 (purecopy
+;   (list
+;    ;; fontify extra c++ storage classes and type specifiers
+;    (cons (concat "\\<\\(" c++-types "\\)\\>") 'font-lock-type-face)
+;
+;    ;;special check for class
+;    '("^\\(\\<\\|template[ \t]+<[ \t]*\\)\\(class\\)[ \t\n]+" 2
+;      font-lock-type-face)
+;
+;    ;; special handling of template
+;    "^\\(template\\)\\>"
+;    ;; fontify extra c++ builtin tokens
+;    (cons (concat
+;	    "[ \t]\\("
+;	    (mapconcat 'identity
+;		       '("asm" "catch" "throw" "try" "delete" "new" "operator"
+;			 "sizeof" "this"
+;			 )
+;		       "\\|")
+;	    "\\)[ \t\n(){};,]")
+;	   1)
+;    )))
+;
+;  (setq c++-font-lock-keywords-1 (purecopy
+;   (append c-font-lock-keywords-1 c++-font-lock-keywords-internal-1)))
+;
+;  (setq c++-font-lock-keywords-2 (purecopy
+;   (append c-font-lock-keywords-2 c++-font-lock-keywords-internal-1
+;	    c++-font-lock-keywords-internal-2)))
+;  )
+;
+;(defconst c++-font-lock-keywords c++-font-lock-keywords-1
+;  "Additional expressions to highlight in C++ mode.")
+;; Java support from Anders Lindgren and Bob Weiner
+(defconst java-font-lock-keywords-1 nil
+"For consideration as a value of `java-font-lock-keywords'.
+This does fairly subdued highlighting.")
+(defconst java-font-lock-keywords-2 nil
+"For consideration as a value of `java-font-lock-keywords'.
+This adds highlighting of types and identifier names.")
+(defconst java-font-lock-keywords-3 nil
+"For consideration as a value of `java-font-lock-keywords'.
+This adds highlighting of Java documentation tags, such as @see.")
+(defvar java-font-lock-type-regexp
+(concat "\\<\\(boolean\\|byte\\|char\\|double\\|float\\|int"
+"\\|long\\|short\\|void\\)\\>")
+"Regexp which should match a primitive type.")
+(let ((capital-letter "A-Z\300-\326\330-\337")
+(letter "a-zA-Z_$\300-\326\330-\366\370-\377")
+(digit  "0-9"))
+(defvar java-font-lock-identifier-regexp
+(concat "\\<\\([" letter "][" letter digit "]*\\)\\>")
+"Regexp which should match all Java identifiers.")
+(defvar java-font-lock-class-name-regexp
+(concat "\\<\\([" capital-letter "][" letter digit "]*\\)\\>")
+"Regexp which should match a class or an interface name.
+The name is assumed to begin with a capital letter.")
+)
+(let ((java-modifier-regexp
+(concat "\\<\\(abstract\\|const\\|final\\|native\\|"
+	       "private\\|protected\\|public\\|"
+	       "static\\|synchronized\\|transient\\|volatile\\)\\>")))
+;; Basic font-lock support:
+(setq java-font-lock-keywords-1
+	(list
+	 ;; Keywords:
+	 (list
+	  (concat
+	   "\\<\\("
+	   "break\\|byvalue\\|"
+	   "case\\|cast\\|catch\\|class\\|continue\\|"
+	   "do\\|else\\|extends\\|"
+	   "finally\\|for\\|future\\|"
+	   "generic\\|goto\\|"
+	   "if\\|implements\\|import\\|"
+	   "instanceof\\|interface\\|"
+	   "new\\|package\\|return\\|switch\\|"
+	   "throws?\\|try\\|while\\)\\>")
+	  1 'font-lock-keyword-face)
+	 ;; Modifiers:
+	 (list java-modifier-regexp 1 font-lock-type-face)
+	 ;; Special constants:
+	 '("\\<\\(this\\|super\\)\\>" (1 font-lock-reference-face))
+	 '("\\<\\(false\\|null\\|true\\)\\>" (1 font-lock-keyword-face))
+	 ;; Class names:
+	 (list (concat "\\<class\\>\\s *" java-font-lock-identifier-regexp)
+	       1 'font-lock-function-name-face)
+	 ;; Package declarations:
+	 (list (concat "\\<\\(package\\|import\\)\\>\\s *"
+		       java-font-lock-identifier-regexp)
+	       '(2 font-lock-reference-face)
+	       (list (concat
+		      "\\=\\.\\(" java-font-lock-identifier-regexp "\\)")
+		     nil nil '(1 (let ((c (char-after (match-end 0))))
+				   (if (and (characterp c)
+					    (= c ?.))
+				       'font-lock-reference-face
+				     'font-lock-type-face)))))
+	 ;; Constructors:
+	 (list (concat
+		"^\\s *\\(" java-modifier-regexp "\\s +\\)*"
+		java-font-lock-class-name-regexp "\\s *\(")
+	       (list 3
+		     '(condition-case nil
+			  (save-excursion
+			    (goto-char (scan-sexps (- (match-end 0) 1) 1))
+			    (parse-partial-sexp (point) (point-max) nil t)
+			    (and (looking-at "\\($\\|\\<throws\\>\\|{\\)")
+				 'font-lock-function-name-face))
+			(error 'font-lock-function-name-face))))
+	 ;; Methods:
+	 (list (concat "\\(" java-font-lock-type-regexp "\\|"
+		       java-font-lock-class-name-regexp "\\)"
+		       "\\s *\\(\\[\\s *\\]\\s *\\)*"
+		       java-font-lock-identifier-regexp "\\s *\(")
+	       5
+	       'font-lock-function-name-face)
+	 ;; Labels:
+	 (list ":"
+	       (list
+		(concat "^\\s *" java-font-lock-identifier-regexp "\\s *:")
+		'(beginning-of-line) '(end-of-line)
+		'(1 font-lock-reference-face)))
+	 ;; `break' and continue' destination labels:
+	 (list (concat "\\<\\(break\\|continue\\)\\>\\s *"
+		       java-font-lock-identifier-regexp)
+	       2 'font-lock-reference-face)
+	 ;; Case statements:
+	 ;; In Java, any constant expression is allowed.
+	 '("\\<case\\>\\s *\\(.*\\):" 1 font-lock-reference-face)))
+;; Types and declared variable names:
+(setq java-font-lock-keywords-2
+	(append
+	 java-font-lock-keywords-1
+	 (list
+	  ;; Keywords followed by a type:
+	  (list (concat "\\<\\(extends\\|instanceof\\|new\\)\\>\\s *"
+			java-font-lock-identifier-regexp)
+		'(2 (if (= (char-after (match-end 0)) ?.)
+			'font-lock-reference-face 'font-lock-type-face))
+		(list (concat "\\=\\." java-font-lock-identifier-regexp)
+		      '(goto-char (match-end 0)) nil
+		      '(1 (if (= (char-after (match-end 0)) ?.)
+			      'font-lock-reference-face 'font-lock-type-face))))
+	  ;; Keywords followed by a type list:
+	  (list (concat "\\<\\(implements\\|throws\\)\\>\\ s*"
+			java-font-lock-identifier-regexp)
+		'(2 (if (= (char-after (match-end 0)) ?.)
+			font-lock-reference-face font-lock-type-face))
+		(list (concat "\\=\\(\\.\\|\\s *\\(,\\)\\s *\\)"
+			      java-font-lock-identifier-regexp)
+		      '(goto-char (match-end 0)) nil
+		      '(3 (if (= (char-after (match-end 0)) ?.)
+			      font-lock-reference-face font-lock-type-face))))
+	  ;; primitive types, can't be confused with anything else.
+	  (list java-font-lock-type-regexp
+		'(1 font-lock-type-face)
+		'(font-lock-match-java-declarations
+		  (goto-char (match-end 0))
+		  (goto-char (match-end 0))
+		  (0 font-lock-variable-name-face)))
+	  ;; Declarations, class types and capitalized variables:
+	  ;;
+	  ;; Declarations are easy to recognize.  Capitalized words
+	  ;; followed by a closing parenthesis are treated as casts if they
+	  ;; also are followed by an expression.  Expressions beginning with
+	  ;; a unary numerical operator, e.g. +, can't be cast to an object
+	  ;; type.
+	  ;;
+	  ;; The path of a fully qualified type, e.g. java.lang.Foo, is
+	  ;; fontified in the reference face.
+	  ;;
+	  ;; An access to a static field, e.g. System.out.println, is
+	  ;; not fontified since it can't be distinguished from the
+	  ;; usage of a capitalized variable, e.g. Foo.out.println.
+	  (list (concat java-font-lock-class-name-regexp
+			"\\s *\\(\\[\\s *\\]\\s *\\)*"
+			"\\(\\<\\|$\\|)\\s *\\([\(\"]\\|\\<\\)\\)")
+		'(1 (save-match-data
+		      (save-excursion
+			(goto-char
+			 (match-beginning 3))
+			(if (not (looking-at "\\<instanceof\\>"))
+			    'font-lock-type-face))))
+		(list (concat "\\=" java-font-lock-identifier-regexp "\\.")
+		      '(progn
+			 (goto-char (match-beginning 0))
+			 (while (or (= (preceding-char) ?.)
+				    (= (char-syntax (preceding-char)) ?w))
+			   (backward-char)))
+		      '(goto-char (match-end 0))
+		      '(1 font-lock-reference-face)
+		      '(0 nil))		; Workaround for bug in XEmacs.
+		'(font-lock-match-java-declarations
+		  (goto-char (match-end 1))
+		  (goto-char (match-end 0))
+		  (1 font-lock-variable-name-face))))))
+;; Modifier keywords and Java doc tags
+(setq java-font-lock-keywords-3
+	(append
+	 '(
+	   ;; Feature scoping:
+	   ;; These must come first or the Modifiers from keywords-1 will
+	   ;; catch them.  We don't want to use override fontification here
+	   ;; because then these terms will be fontified within comments.
+	   ("\\<private\\>"   0 font-lock-string-face)
+	   ("\\<protected\\>" 0 font-lock-preprocessor-face)
+	   ("\\<public\\>"    0 font-lock-reference-face))
+	 java-font-lock-keywords-2
+	 (list
+	  ;; Java doc tags
+	  '("@\\(author\\|exception\\|param\\|return\\|see\\|version\\)\\s "
+	    0 font-lock-keyword-face t)
+	  ;; Doc tag - Parameter identifiers
+	  (list (concat "@param\\s +" java-font-lock-identifier-regexp)
+		1 'font-lock-variable-name-face t)
+	  ;; Doc tag - Exception types
+	  (list (concat "@exception\\ s*"
+			java-font-lock-identifier-regexp)
+		'(1 (if (= (char-after (match-end 0)) ?.)
+			font-lock-reference-face font-lock-type-face) t)
+		(list (concat "\\=\\." java-font-lock-identifier-regexp)
+		      '(goto-char (match-end 0)) nil
+		      '(1 (if (= (char-after (match-end 0)) ?.)
+			      'font-lock-reference-face 'font-lock-type-face) t)))
+	  ;; Doc tag - Cross-references, usually to methods
+	  '("@see\\s +\\(\\S *[^][ \t\n\r\f(){},.;:]\\)"
+	    1 font-lock-function-name-face t)
+	  )))
+)
+(defvar java-font-lock-keywords java-font-lock-keywords-1
+"Additional expressions to highlight in Java mode.")
+;; Match and move over any declaration/definition item after
+;; point.  Does not match items which look like a type declaration
+;; (primitive types and class names, i.e. capitalized words.)
+;; Should the variable name be followed by a comma, we reposition
+;; the cursor to fontify more identifiers.
+(defun font-lock-match-java-declarations (limit)
+"Match and skip over variable definitions."
+(if (looking-at "\\s *\\(\\[\\s *\\]\\s *\\)*")
+(goto-char (match-end 0)))
+(and
+(looking-at java-font-lock-identifier-regexp)
+(save-match-data
+(not (string-match java-font-lock-type-regexp
+			(buffer-substring (match-beginning 1)
+					  (match-end 1)))))
+(save-match-data
+(save-excursion
+(goto-char (match-beginning 1))
+(not (looking-at
+	     (concat java-font-lock-class-name-regexp
+		     "\\s *\\(\\[\\s *\\]\\s *\\)*\\<")))))
+(save-match-data
+(condition-case nil
+	 (save-restriction
+	   (narrow-to-region (point-min) limit)
+	   (goto-char (match-end 0))
+	   ;; Note: Both `scan-sexps' and the second goto-char can
+	   ;; generate an error which is caught by the
+	   ;; `condition-case' expression.
+	   (while (not (looking-at "\\s *\\(\\(,\\)\\|;\\|$\\)"))
+	     (goto-char (or (scan-sexps (point) 1) (point-max))))
+	   (goto-char (match-end 2)))   ; non-nil
+(error t)))))
+(defvar tex-font-lock-keywords
+;  ;; Regexps updated with help from Ulrik Dickow <dickow@nbi.dk>.
+;  '(("\\\\\\(begin\\|end\\|newcommand\\){\\([a-zA-Z0-9\\*]+\\)}"
+;     2 font-lock-function-name-face)
+;    ("\\\\\\(cite\\|label\\|pageref\\|ref\\){\\([^} \t\n]+\\)}"
+;     2 font-lock-reference-face)
+;    ;; It seems a bit dubious to use `bold' and `italic' faces since we might
+;    ;; not be able to display those fonts.
+;    ("{\\\\bf\\([^}]+\\)}" 1 'bold keep)
+;    ("{\\\\\\(em\\|it\\|sl\\)\\([^}]+\\)}" 2 'italic keep)
+;    ("\\\\\\([a-zA-Z@]+\\|.\\)" . font-lock-keyword-face)
+;    ("^[ \t\n]*\\\\def[\\\\@]\\(\\w+\\)" 1 font-lock-function-name-face keep))
+;; Rewritten and extended for LaTeX2e by Ulrik Dickow <dickow@nbi.dk>.
+'(("\\\\\\(begin\\|end\\|newcommand\\){\\([a-zA-Z0-9\\*]+\\)}"
+2 font-lock-function-name-face)
+("\\\\\\(cite\\|label\\|pageref\\|ref\\){\\([^} \t\n]+\\)}"
+2 font-lock-reference-face)
+("^[ \t]*\\\\def\\\\\\(\\(\\w\\|@\\)+\\)" 1 font-lock-function-name-face)
+"\\\\\\([a-zA-Z@]+\\|.\\)"
+;; It seems a bit dubious to use `bold' and `italic' faces since we might
+;; not be able to display those fonts.
+;; LaTeX2e: \emph{This is emphasized}.
+("\\\\emph{\\([^}]+\\)}" 1 'italic keep)
+;; LaTeX2e: \textbf{This is bold}, \textit{...}, \textsl{...}
+("\\\\text\\(\\(bf\\)\\|it\\|sl\\){\\([^}]+\\)}"
+3 (if (match-beginning 2) 'bold 'italic) keep)
+;; Old-style bf/em/it/sl. Stop at `\\' and un-escaped `&', for good tables.
+("\\\\\\(\\(bf\\)\\|em\\|it\\|sl\\)\\>\\(\\([^}&\\]\\|\\\\[^\\]\\)+\\)"
+3 (if (match-beginning 2) 'bold 'italic) keep))
+"Default expressions to highlight in TeX modes.")
+;; The previous version, before replacing it with the FSF version.
+;(defconst tex-font-lock-keywords (purecopy
+;  (list
+;   ;; Lionel Mallet: Thu Oct 14 09:41:38 1993
+;   ;; I've added an exit condition to the regexp below, and the other
+;   ;; regexps for the second part.
+;   ;; What would be useful here is something like:
+;   ;; ("\\(\\\\\\w+\\)\\({\\(\\w+\\)}\\)+" 1 font-lock-keyword-face t 3
+;   ;;  font-lock-function-name-face t)
+;   '("\\(\\\\\\w+\\)\\W" 1 font-lock-keyword-face t)
+;   '("\\(\\\\\\w+\\){\\([^}\n]+\\)}" 2 font-lock-function-name-face t)
+;   '("\\(\\\\\\w+\\){\\(\\w+\\)}{\\(\\w+\\)}" 3
+;     font-lock-function-name-face t)
+;   '("\\(\\\\\\w+\\){\\(\\w+\\)}{\\(\\w+\\)}{\\(\\w+\\)}" 4
+;     font-lock-function-name-face t)
+;   '("{\\\\\\(em\\|tt\\)\\([^}]+\\)}" 2 font-lock-comment-face t)
+;   '("{\\\\bf\\([^}]+\\)}" 1 font-lock-keyword-face t)
+;   '("^[ \t\n]*\\\\def[\\\\@]\\(\\w+\\)\\W" 1 font-lock-function-name-face t)
+;   ;; Lionel Mallet: Thu Oct 14 09:40:10 1993
+;   ;; the regexp below is useless as it is now covered by the first 2 regexps
+;   ;;   '("\\\\\\(begin\\|end\\){\\([a-zA-Z0-9\\*]+\\)}"
+;   ;;     2 font-lock-function-name-face t)
+;   '("[^\\\\]\\$\\([^$]*\\)\\$" 1 font-lock-string-face t)
+;;   '("\\$\\([^$]*\\)\\$" 1 font-lock-string-face t)
+;   ))
+;  "Additional expressions to highlight in TeX mode.")
+(defconst ksh-font-lock-keywords (purecopy
+(list
+'("\\(^\\|[^\$\\\]\\)#.*" . font-lock-comment-face)
+'("\\<\\(if\\|then\\|else\\|elif\\|fi\\|case\\|esac\\|for\\|do\\|done\\|foreach\\|in\\|end\\|select\\|while\\|repeat\\|time\\|function\\|until\\|exec\\|command\\|coproc\\|noglob\\|nohup\\|nocorrect\\|source\\|autoload\\|alias\\|unalias\\|export\\|set\\|echo\\|eval\\|cd\\|log\\|compctl\\)\\>" . font-lock-keyword-face)
+'("\\<\\[\\[.*\\]\\]\\>" . font-lock-type-face)
+'("\$\(.*\)" . font-lock-type-face)
+))
+"Additional expressions to highlight in ksh-mode.")
+(defconst sh-font-lock-keywords (purecopy
+(list
+'("\\(^\\|[^\$\\\]\\)#.*" . font-lock-comment-face)
+'("\\<\\(if\\|then\\|else\\|elif\\|fi\\|case\\|esac\\|for\\|do\\|done\\|in\\|while\\|exec\\|export\\|set\\|echo\\|eval\\|cd\\)\\>" . font-lock-keyword-face)
+'("\\[.*\\]" . font-lock-type-face)
+'("`.*`" . font-lock-type-face)
+))
+"Additional expressions to highlight in sh-mode.")
+;; Install ourselves:
+(add-hook 'find-file-hooks 'font-lock-set-defaults t)
+(make-face 'font-lock-comment-face "Face to use for comments.")
+(make-face 'font-lock-doc-string-face "Face to use for documentation strings.")
+(make-face 'font-lock-string-face "Face to use for strings.")
+(make-face 'font-lock-keyword-face "Face to use for keywords.")
+(make-face 'font-lock-function-name-face "Face to use for function names.")
+(make-face 'font-lock-variable-name-face "Face to use for variable names.")
+(make-face 'font-lock-type-face "Face to use for type names.")
+(make-face 'font-lock-reference-face "Face to use for reference names.")
+(make-face 'font-lock-preprocessor-face
+	   "Face to use for preprocessor commands.")
+;; Backwards compatibility?
+(if (eq t font-lock-use-colors)
+(setq font-lock-use-colors '(color)))
+(if (eq t font-lock-use-fonts)
+(setq font-lock-use-fonts '(or (mono) (grayscale))))
+(font-lock-apply-defaults 'font-lock-add-fonts font-lock-use-fonts)
+(font-lock-apply-defaults 'font-lock-add-colors font-lock-use-colors)
+;;;###autoload
+(add-minor-mode 'font-lock-mode " Font")
+;; Provide ourselves:
+(provide 'font-lock)
+;;; font-lock.el ends here

Mercurial > hg > xemacs-beta

comparison lisp/font-lock.el @ 217:d44af0c54775 r20-4b7