;;; font-lock.el --- Electric font lock mode
-;; Copyright (C) 1992, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
+;; Copyright (C) 1992, 93, 94, 95, 96, 97, 1998 Free Software Foundation, Inc.
-;; Author: jwz, then rms, then sm <simon@gnu.ai.mit.edu>
+;; Author: jwz, then rms, then sm <simon@gnu.org>
;; Maintainer: FSF
;; Keywords: languages, faces
;; also the variable `font-lock-maximum-size'. Support modes for Font Lock
;; mode can be used to speed up Font Lock mode. See `font-lock-support-mode'.
\f
+;;; How Font Lock mode fontifies:
+
+;; When Font Lock mode is turned on in a buffer, it (a) fontifies the entire
+;; buffer and (b) installs one of its fontification functions on one of the
+;; hook variables that are run by Emacs after every buffer change (i.e., an
+;; insertion or deletion). Fontification means the replacement of `face' text
+;; properties in a given region; Emacs displays text with these `face' text
+;; properties appropriately.
+;;
+;; Fontification normally involves syntactic (i.e., strings and comments) and
+;; regexp (i.e., keywords and everything else) passes. There are actually
+;; three passes; (a) the syntactic keyword pass, (b) the syntactic pass and (c)
+;; the keyword pass. Confused?
+;;
+;; The syntactic keyword pass places `syntax-table' text properties in the
+;; buffer according to the variable `font-lock-syntactic-keywords'. It is
+;; necessary because Emacs' syntax table is not powerful enough to describe all
+;; the different syntactic constructs required by the sort of people who decide
+;; that a single quote can be syntactic or not depending on the time of day.
+;; (What sort of person could decide to overload the meaning of a quote?)
+;; Obviously the syntactic keyword pass must occur before the syntactic pass.
+;;
+;; The syntactic pass places `face' text properties in the buffer according to
+;; syntactic context, i.e., according to the buffer's syntax table and buffer
+;; text's `syntax-table' text properties. It involves using a syntax parsing
+;; function to determine the context of different parts of a region of text. A
+;; syntax parsing function is necessary because generally strings and/or
+;; comments can span lines, and so the context of a given region is not
+;; necessarily apparent from the content of that region. Because the keyword
+;; pass only works within a given region, it is not generally appropriate for
+;; syntactic fontification. This is the first fontification pass that makes
+;; changes visible to the user; it fontifies strings and comments.
+;;
+;; The keyword pass places `face' text properties in the buffer according to
+;; the variable `font-lock-keywords'. It involves searching for given regexps
+;; (or calling given search functions) within the given region. This is the
+;; second fontification pass that makes changes visible to the user; it
+;; fontifies language reserved words, etc.
+;;
+;; Oh, and the answer is, "Yes, obviously just about everything should be done
+;; in a single syntactic pass, but the only syntactic parser available
+;; understands only strings and comments." Perhaps one day someone will write
+;; some syntactic parsers for common languages and a son-of-font-lock.el could
+;; use them rather then relying so heavily on the keyword (regexp) pass.
+
;;; How Font Lock mode supports modes or is supported by modes:
;; Modes that support Font Lock mode do so by defining one or more variables
;; (a); (b) is used where it is not clear which package library should contain
;; the pattern definitions.) Font Lock mode chooses which variable to use for
;; fontification based on `font-lock-maximum-decoration'.
+;;
+;; Font Lock mode fontification behaviour can be modified in a number of ways.
+;; See the below comments and the comments distributed throughout this file.
;;; Constructing patterns:
;; See the documentation for the variable `font-lock-keywords'.
;;
-;; Nasty regexps of the form "bar\\(\\|lo\\)\\|f\\(oo\\|u\\(\\|bar\\)\\)\\|lo"
-;; are made thusly: (make-regexp '("foo" "fu" "fubar" "bar" "barlo" "lo")) for
-;; efficiency. See /pub/gnu/emacs/elisp-archive/functions/make-regexp.el.Z on
-;; archive.cis.ohio-state.edu for this and other functions not just by simon.
+;; Efficient regexps for use as MATCHERs for `font-lock-keywords' and
+;; `font-lock-syntactic-keywords' can be generated via the function
+;; `regexp-opt', and their depth counted via the function `regexp-opt-depth'.
;;; Adding patterns for modes that already support Font Lock:
\f
;;; Code:
+;; Define core `font-lock' group.
+(defgroup font-lock nil
+ "Font Lock mode text highlighting package."
+ :link '(custom-manual "(emacs)Font Lock")
+ :group 'faces)
+
+(defgroup font-lock-highlighting-faces nil
+ "Faces for highlighting text."
+ :prefix "font-lock-"
+ :group 'font-lock)
+
+(defgroup font-lock-extra-types nil
+ "Extra mode-specific type names for highlighting declarations."
+ :group 'font-lock)
+
+;; Define support mode groups here to impose `font-lock' group order.
+(defgroup fast-lock nil
+ "Font Lock support mode to cache fontification."
+ :link '(custom-manual "(emacs)Support Modes")
+ :load 'fast-lock
+ :group 'font-lock)
+
+(defgroup lazy-lock nil
+ "Font Lock support mode to fontify lazily."
+ :link '(custom-manual "(emacs)Support Modes")
+ :load 'lazy-lock
+ :group 'font-lock)
+\f
;; User variables.
-(defvar font-lock-verbose (* 0 1024)
- "*If non-nil, means show status messages for buffer fontification.
-If a number, only buffers greater than this size have fontification messages.")
-
-;;;###autoload
-(defvar font-lock-maximum-decoration nil
+(defcustom font-lock-maximum-size (* 250 1024)
+ "*Maximum size of a buffer for buffer fontification.
+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 or C++ modes, one megabyte
+for buffers in Rmail mode, and size is irrelevant otherwise."
+ :type '(choice (const :tag "none" nil)
+ (integer :tag "size")
+ (repeat :menu-tag "mode specific" :tag "mode specific"
+ :value ((t . nil))
+ (cons :tag "Instance"
+ (radio :tag "Mode"
+ (const :tag "all" t)
+ (symbol :tag "name"))
+ (radio :tag "Size"
+ (const :tag "none" nil)
+ (integer :tag "size")))))
+ :group 'font-lock)
+
+(defcustom font-lock-maximum-decoration t
"*Maximum decoration level for fontification.
If nil, use the default decoration (typically the minimum available).
If t, use the maximum decoration available.
where MAJOR-MODE is a symbol or t (meaning the default). For example:
((c-mode . t) (c++-mode . 2) (t . 1))
means use the maximum decoration available for buffers in C mode, level 2
-decoration for buffers in C++ mode, and level 1 decoration otherwise.")
-
-;;;###autoload
-(defvar font-lock-maximum-size (* 250 1024)
- "*Maximum size of a buffer for buffer fontification.
-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 or C++ modes, one megabyte
-for buffers in Rmail mode, and size is irrelevant otherwise.")
+decoration for buffers in C++ mode, and level 1 decoration otherwise."
+ :type '(choice (const :tag "default" nil)
+ (const :tag "maximum" t)
+ (integer :tag "level" 1)
+ (repeat :menu-tag "mode specific" :tag "mode specific"
+ :value ((t . t))
+ (cons :tag "Instance"
+ (radio :tag "Mode"
+ (const :tag "all" t)
+ (symbol :tag "name"))
+ (radio :tag "Decoration"
+ (const :tag "default" nil)
+ (const :tag "maximum" t)
+ (integer :tag "level" 1)))))
+ :group 'font-lock)
+
+(defcustom font-lock-verbose (* 0 1024)
+ "*If non-nil, means show status messages for buffer fontification.
+If a number, only buffers greater than this size have fontification messages."
+ :type '(choice (const :tag "never" nil)
+ (integer :tag "size")
+ (other :tag "always" t))
+ :group 'font-lock)
\f
;; Fontification variables:
-;; Originally these variable values were face names such as `bold' etc.
-;; Now we create our own faces, but we keep these variables for compatibility
-;; and they give users another mechanism for changing face appearance.
-;; We now allow a FACENAME in `font-lock-keywords' to be any expression that
-;; returns a face. So the easiest thing is to continue using these variables,
-;; rather than sometimes evaling FACENAME and sometimes not. sm.
-(defvar font-lock-comment-face 'font-lock-comment-face
- "Face to use for comments.")
-
-(defvar font-lock-string-face 'font-lock-string-face
- "Face to use for strings.")
-
-(defvar font-lock-keyword-face 'font-lock-keyword-face
- "Face to use for keywords.")
-
-(defvar font-lock-builtin-face 'font-lock-builtin-face
- "Face to use for builtins.")
-
-(defvar font-lock-function-name-face 'font-lock-function-name-face
- "Face to use for function names.")
-
-(defvar font-lock-variable-name-face 'font-lock-variable-name-face
- "Face to use for variable names.")
-
-(defvar font-lock-type-face 'font-lock-type-face
- "Face to use for type names.")
-
-(defvar font-lock-reference-face 'font-lock-reference-face
- "Face to use for reference names.")
-
-(defvar font-lock-warning-face 'font-lock-warning-face
- "Face to use for things that should stand out.")
-
(defvar font-lock-keywords nil
- "*A list of the keywords to highlight.
-Each element should be of the form:
+ "A list of the keywords to highlight.
+Each element should have one of these forms:
MATCHER
(MATCHER . MATCH)
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.
+For highlighting single items, for example each instance of the word \"foo\",
+typically only MATCH-HIGHLIGHT is required.
However, if an item or (typically) items are to be highlighted following the
-instance of another item (the anchor) then MATCH-ANCHORED may be required.
+instance of another item (the anchor), for example each instance of the
+word \"bar\" following the word \"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, or the function name 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 an
-expression whose value is the face name to use. FACENAME's default attributes
-may be defined in `font-lock-face-attributes'.
+where MATCHER can be either the regexp to search for, or the function name to
+call to make the search (called with one argument, the limit of the search) and
+return non-nil if it succeeds (and set `match-data' appropriately).
+MATCHER regexps can be generated via the function `regexp-opt'. MATCH is the
+subexpression of MATCHER to be highlighted. MATCH can be calculated via the
+function `regexp-opt-depth'. FACENAME is an expression whose value is the face
+name to use. Face default attributes can be modified via \\[customize].
-OVERRIDE and LAXMATCH are flags. If OVERRIDE is t, existing fontification may
+OVERRIDE and LAXMATCH are flags. If OVERRIDE is t, existing fontification can
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.
For example, an element of the form highlights (if not already highlighted):
- \"\\\\\\=<foo\\\\\\=>\" Discrete occurrences of \"foo\" in the value of the
+ \"\\\\\\=<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
+ (\"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
+ occurrences of either \"foo\" or \"bar\" in the value
of `foo-bar-face', even if already highlighted.
+ (fubar-match 1 fubar-face)
+ the first subexpression within all occurrences of
+ whatever the function `fubar-match' finds and matches
+ in the value of `fubar-face'.
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. The limit of the
-search is currently guaranteed to be (no greater than) the end of the line.
+where MATCHER is a regexp to search for or the function name to call to make
+the search, as for MATCH-HIGHLIGHT above, but 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,
(\"\\\\\\=<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 \"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.)
-Note that the MATCH-ANCHORED feature is experimental; in the future, we may
-replace it with other ways of providing this functionality.
+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.
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!")
-(make-variable-buffer-local 'font-lock-keywords)
+This variable is set by major modes via the variable `font-lock-defaults'.
+Be careful when composing regexps for this list; a poorly written pattern can
+dramatically slow things down!")
;; This variable is used by mode packages that support Font Lock mode by
;; defining their own keywords to use for `font-lock-keywords'. (The mode
;; command should make it buffer-local and set it to provide the set up.)
(defvar font-lock-defaults nil
- "If set by a major mode, should be the defaults for Font Lock mode.
-The value should be like the `cdr' of an item in `font-lock-defaults-alist'.")
+ "Defaults for Font Lock mode specified by the major mode.
+Defaults should be of the form:
+
+ (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-OR-STRING . 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.
+
+Further item elements are alists of the form (VARIABLE . VALUE) and are in no
+particular order. Each VARIABLE is made buffer-local before set to VALUE.
+
+Currently, appropriate variables include `font-lock-mark-block-function'.
+If this is non-nil, it should be a function with no args used to mark any
+enclosing block of text, for fontification via \\[font-lock-fontify-block].
+Typical values are `mark-defun' for programming modes or `mark-paragraph' for
+textual modes (i.e., the mode-dependent function is known to put point and mark
+around a text block relevant to that mode).
+
+Other variables include those for buffer-specialised fontification functions,
+`font-lock-fontify-buffer-function', `font-lock-unfontify-buffer-function',
+`font-lock-fontify-region-function', `font-lock-unfontify-region-function',
+`font-lock-inhibit-thing-lock' and `font-lock-maximum-size'.")
;; This variable is used where font-lock.el itself supplies the keywords.
(defvar font-lock-defaults-alist
'((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
- (font-lock-comment-start-regexp . "/[*/]")
+ ;; Obsoleted by Emacs 20 parse-partial-sexp's COMMENTSTOP.
+ ;(font-lock-comment-start-regexp . "/[*/]")
(font-lock-mark-block-function . mark-defun)))
(c++-mode-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
- (font-lock-comment-start-regexp . "/[*/]")
+ nil nil ((?_ . "w")) beginning-of-defun
+ ;; Obsoleted by Emacs 20 parse-partial-sexp's COMMENTSTOP.
+ ;(font-lock-comment-start-regexp . "/[*/]")
(font-lock-mark-block-function . mark-defun)))
(objc-mode-defaults
'((objc-font-lock-keywords objc-font-lock-keywords-1
objc-font-lock-keywords-2 objc-font-lock-keywords-3)
nil nil ((?_ . "w") (?$ . "w")) nil
- (font-lock-comment-start-regexp . "/[*/]")
+ ;; Obsoleted by Emacs 20 parse-partial-sexp's COMMENTSTOP.
+ ;(font-lock-comment-start-regexp . "/[*/]")
(font-lock-mark-block-function . mark-defun)))
(java-mode-defaults
'((java-font-lock-keywords java-font-lock-keywords-1
java-font-lock-keywords-2 java-font-lock-keywords-3)
nil nil ((?_ . "w") (?$ . "w") (?. . "w")) nil
- (font-lock-comment-start-regexp . "/[*/]")
+ ;; Obsoleted by Emacs 20 parse-partial-sexp's COMMENTSTOP.
+ ;(font-lock-comment-start-regexp . "/[*/]")
(font-lock-mark-block-function . mark-defun)))
(lisp-mode-defaults
'((lisp-font-lock-keywords
lisp-font-lock-keywords-1 lisp-font-lock-keywords-2)
nil nil (("+-*/.<>=!?$%_&~^:" . "w")) beginning-of-defun
- (font-lock-comment-start-regexp . ";")
- (font-lock-mark-block-function . mark-defun)))
- (scheme-mode-defaults
- '(scheme-font-lock-keywords
- nil t (("+-*/.<>=!?$%_&~^:" . "w")) beginning-of-defun
- (font-lock-comment-start-regexp . ";")
+ ;; Obsoleted by Emacs 20 parse-partial-sexp's COMMENTSTOP.
+ ;(font-lock-comment-start-regexp . ";")
(font-lock-mark-block-function . mark-defun)))
;; For TeX modes we could use `backward-paragraph' for the same reason.
;; But we don't, because paragraph breaks are arguably likely enough to
;; However, we do specify a MARK-BLOCK function as that cannot result
;; in a mis-fontification even if it might not fontify enough. --sm.
(tex-mode-defaults
- '(tex-font-lock-keywords nil nil ((?$ . "\"")) nil
- (font-lock-comment-start-regexp . "%")
+ '((tex-font-lock-keywords
+ tex-font-lock-keywords-1 tex-font-lock-keywords-2)
+ nil nil ((?$ . "\"")) nil
+ ;; Obsoleted by Emacs 20 parse-partial-sexp's COMMENTSTOP.
+ ;(font-lock-comment-start-regexp . "%")
(font-lock-mark-block-function . mark-paragraph)))
)
(list
(cons 'objc-mode objc-mode-defaults)
(cons 'java-mode java-mode-defaults)
(cons 'emacs-lisp-mode lisp-mode-defaults)
- (cons 'inferior-scheme-mode scheme-mode-defaults)
(cons 'latex-mode tex-mode-defaults)
(cons 'lisp-mode lisp-mode-defaults)
(cons 'lisp-interaction-mode lisp-mode-defaults)
(cons 'plain-tex-mode tex-mode-defaults)
- (cons 'scheme-mode scheme-mode-defaults)
- (cons 'scheme-interaction-mode scheme-mode-defaults)
(cons 'slitex-mode tex-mode-defaults)
(cons 'tex-mode tex-mode-defaults)))
- "Alist of default major mode and Font Lock defaults.
+ "Alist of fall-back Font Lock defaults for major modes.
Each item should be a list of the form:
- (MAJOR-MODE . (KEYWORDS KEYWORDS-ONLY CASE-FOLD SYNTAX-ALIST SYNTAX-BEGIN
- ...))
+ (MAJOR-MODE . FONT-LOCK-DEFAULTS)
-where MAJOR-MODE is a symbol. 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-OR-STRING . 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.
-
-Further item elements are alists of the form (VARIABLE . VALUE) and are in no
-particular order. Each VARIABLE is made buffer-local before set to VALUE.
-
-Currently, appropriate variables include `font-lock-mark-block-function'.
-If this is non-nil, it should be a function with no args used to mark any
-enclosing block of text, for fontification via \\[font-lock-fontify-block].
-Typical values are `mark-defun' for programming modes or `mark-paragraph' for
-textual modes (i.e., the mode-dependent function is known to put point and mark
-around a text block relevant to that mode).
-
-Other variables include those for buffer-specialised fontification functions,
-`font-lock-fontify-buffer-function', `font-lock-unfontify-buffer-function',
-`font-lock-fontify-region-function', `font-lock-unfontify-region-function',
-`font-lock-comment-start-regexp', `font-lock-inhibit-thing-lock' and
-`font-lock-maximum-size'.")
+where MAJOR-MODE is a symbol and FONT-LOCK-DEFAULTS is a list of default
+settings. See the variable `font-lock-defaults', which takes precedence.")
(defvar font-lock-keywords-alist nil
"*Alist of `font-lock-keywords' local to a `major-mode'.
"*Non-nil means the patterns in `font-lock-keywords' are case-insensitive.
This is normally set via `font-lock-defaults'.")
+(defvar font-lock-syntactic-keywords nil
+ "A list of the syntactic keywords to highlight.
+Can be the list or the name of a function or variable whose value is the list.
+See `font-lock-keywords' for a description of the form of this list;
+the differences are listed below. MATCH-HIGHLIGHT should be of the form:
+
+ (MATCH SYNTAX OVERRIDE LAXMATCH)
+
+where SYNTAX can be of the form (SYNTAX-CODE . MATCHING-CHAR), the name of a
+syntax table, or an expression whose value is such a form or a syntax table.
+OVERRIDE cannot be `prepend' or `append'.
+
+For example, an element of the form highlights syntactically:
+
+ (\"\\\\$\\\\(#\\\\)\" 1 (1 . nil))
+
+ a hash character when following a dollar character, with a SYNTAX-CODE of
+ 1 (meaning punctuation syntax). Assuming that the buffer syntax table does
+ specify hash characters to have comment start syntax, the element will only
+ highlight hash characters that do not follow dollar characters as comments
+ syntactically.
+
+ (\"\\\\('\\\\).\\\\('\\\\)\"
+ (1 (7 . ?'))
+ (2 (7 . ?')))
+
+ both single quotes which surround a single character, with a SYNTAX-CODE of
+ 7 (meaning string quote syntax) and a MATCHING-CHAR of a single quote (meaning
+ a single quote matches a single quote). Assuming that the buffer syntax table
+ does not specify single quotes to have quote syntax, the element will only
+ highlight single quotes of the form 'c' as strings syntactically.
+ Other forms, such as foo'bar or 'fubar', will not be highlighted as strings.
+
+This is normally set via `font-lock-defaults'.")
+
(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.
enclosing textual block and mark at the end.
This is normally set via `font-lock-defaults'.")
-(defvar font-lock-comment-start-regexp nil
- "*Regexp to match the start of a comment.
-This need not discriminate between genuine comments and quoted comment
-characters or comment characters within strings.
-If nil, `comment-start-skip' is used instead; see that variable for more info.
-This is normally set via `font-lock-defaults'.")
+;; Obsoleted by Emacs 20 parse-partial-sexp's COMMENTSTOP.
+;(defvar font-lock-comment-start-regexp nil
+; "*Regexp to match the start of a comment.
+;This need not discriminate between genuine comments and quoted comment
+;characters or comment characters within strings.
+;If nil, `comment-start-skip' is used instead; see that variable for more info.
+;This is normally set via `font-lock-defaults'.")
(defvar font-lock-fontify-buffer-function 'font-lock-default-fontify-buffer
"Function to use for fontifying the buffer.
;; We don't do this at the top-level as we only use non-autoloaded macros.
(require 'cl)
;;
- ;; Shut the byte-compiler up.
- (require 'fast-lock)
- (require 'lazy-lock)
- ;;
;; Borrowed from lazy-lock.el.
;; We use this to preserve or protect things when modifying text properties.
(defmacro save-buffer-state (varlist &rest body)
"Bind variables according to VARLIST and eval BODY restoring buffer state."
(` (let* ((,@ (append varlist
- '((modified (buffer-modified-p))
- (inhibit-read-only t) (buffer-undo-list t)
+ '((modified (buffer-modified-p)) (buffer-undo-list t)
+ (inhibit-read-only t) (inhibit-point-motion-hooks t)
before-change-functions after-change-functions
deactivate-mark buffer-file-name buffer-file-truename))))
(,@ body)
(when (and (not modified) (buffer-modified-p))
(set-buffer-modified-p nil)))))
- (put 'save-buffer-state 'lisp-indent-function 1))
+ (put 'save-buffer-state 'lisp-indent-function 1)
+ ;;
+ ;; Shut up the byte compiler.
+ (defvar global-font-lock-mode) ; Now a defcustom.
+ (defvar font-lock-face-attributes) ; Obsolete but respected if set.
+ (defvar font-lock-string-face) ; Used in syntactic fontification.
+ (defvar font-lock-comment-face))
;;;###autoload
(defun font-lock-mode (&optional arg)
(setq font-lock-support-mode 'lazy-lock-mode)
(setq font-lock-maximum-decoration t)
+To add your own highlighting for some major mode, and modify the highlighting
+selected automatically via the variable `font-lock-maximum-decoration', you can
+use `font-lock-add-keywords'.
+
To fontify a buffer, without turning on Font Lock mode and regardless of buffer
size, you can use \\[font-lock-fontify-buffer].
lines around point), perhaps because modification on the current line caused
syntactic change on other lines, you can use \\[font-lock-fontify-block].
-The default Font Lock mode highlighting are normally selected via the variable
-`font-lock-maximum-decoration'. You can add your own highlighting for some
-mode, by calling `font-lock-add-keywords'.
-
-The default Font Lock mode faces and their attributes are defined in the
-variable `font-lock-face-attributes', and Font Lock mode default settings in
-the variable `font-lock-defaults-alist'. You can set your own default settings
-for some mode, by setting a buffer local value for `font-lock-defaults', via
-its mode hook."
+See the variable `font-lock-defaults-alist' for the Font Lock mode default
+settings. You can set your own default settings for some mode, by setting a
+buffer local value for `font-lock-defaults', via its mode hook."
(interactive "P")
;; Don't turn on Font Lock mode if we don't have a display (we're running a
;; batch job) or if the buffer is invisible (the name starts with a space).
(defun turn-on-font-lock ()
"Turn on Font Lock mode conditionally.
Turn on only if the terminal can display it."
- (when window-system
- (font-lock-mode t)))
+ (when (and (not font-lock-mode) window-system)
+ (font-lock-mode)))
;;;###autoload
(defun font-lock-add-keywords (major-mode keywords &optional append)
KEYWORDS should be a list; see the variable `font-lock-keywords'.
By default they are added at the beginning of the current highlighting list.
If optional argument APPEND is `set', they are used to replace the current
-highlighting list. If APPEND has any other value, e.g., t, they are added at
-the end of the current highlighting list.
+highlighting list. If APPEND is any other non-nil value, they are added at the
+end of the current highlighting list.
For example:
(\"\\\\\\=<\\\\(and\\\\|or\\\\|not\\\\)\\\\\\=>\" . font-lock-keyword-face)))
adds two fontification patterns for C mode, to fontify `FIXME:' words, even in
-comments, and to fontify `and', `or' and `not' words as keywords."
+comments, and to fontify `and', `or' and `not' words as keywords.
+
+Note that some modes have specialised support for additional patterns, e.g.,
+see the variables `c-font-lock-extra-types', `c++-font-lock-extra-types',
+`objc-font-lock-extra-types' and `java-font-lock-extra-types'."
(cond (major-mode
;; If MAJOR-MODE is non-nil, add the KEYWORDS and APPEND spec to
;; `font-lock-keywords-alist' so `font-lock-set-defaults' uses them.
(append old keywords)
(append keywords old))))))))
\f
-;; Global Font Lock mode.
-;;
+;;; Global Font Lock mode.
+
;; A few people have hassled in the past for a way to make it easier to turn on
;; Font Lock mode, without the user needing to know for which modes s/he has to
;; turn it on, perhaps the same way hilit19.el/hl319.el does. I've always
;; would also be contrary to the Principle of Least Surprise. sm.
(defvar font-lock-buffers nil) ; For remembering buffers.
-(defvar global-font-lock-mode nil)
-
-;;;###autoload
-(defvar font-lock-global-modes t
- "*Modes for which Font Lock mode is automagically turned on.
-Global Font Lock mode is controlled by the `global-font-lock-mode' command.
-If nil, means no modes have Font Lock mode automatically turned on.
-If t, all modes that support Font Lock mode have it automatically turned on.
-If a list, it should be a list of `major-mode' symbol names for which Font Lock
-mode should be automatically turned on. The sense of the list is negated if it
-begins with `not'. For example:
- (c-mode c++-mode)
-means that Font Lock mode is turned on for buffers in C and C++ modes only.")
;;;###autoload
(defun global-font-lock-mode (&optional arg message)
When Global Font Lock mode is enabled, Font Lock mode is automagically
turned on in a buffer if its major mode is one of `font-lock-global-modes'."
(interactive "P\np")
- (let ((off-p (if arg
- (<= (prefix-numeric-value arg) 0)
- global-font-lock-mode)))
- (if off-p
- (remove-hook 'find-file-hooks 'turn-on-font-lock-if-enabled)
- (add-hook 'find-file-hooks 'turn-on-font-lock-if-enabled)
- (add-hook 'post-command-hook 'turn-on-font-lock-if-enabled)
- (setq font-lock-buffers (buffer-list)))
+ (let ((on-p (if arg
+ (> (prefix-numeric-value arg) 0)
+ (not global-font-lock-mode))))
+ (cond (on-p
+ (add-hook 'find-file-hooks 'turn-on-font-lock-if-enabled)
+ (add-hook 'post-command-hook 'turn-on-font-lock-if-enabled)
+ (setq font-lock-buffers (buffer-list)))
+ (t
+ (remove-hook 'find-file-hooks 'turn-on-font-lock-if-enabled)
+ (mapcar (function (lambda (buffer)
+ (with-current-buffer buffer
+ (when font-lock-mode
+ (font-lock-mode)))))
+ (buffer-list))))
(when message
- (message "Global Font Lock mode is now %s." (if off-p "OFF" "ON")))
- (setq global-font-lock-mode (not off-p))))
+ (message "Global Font Lock mode %s." (if on-p "enabled" "disabled")))
+ (setq global-font-lock-mode on-p)))
+
+;; Naughty hack. This variable was originally a `defvar' to keep track of
+;; whether Global Font Lock mode was turned on or not. As a `defcustom' with
+;; special `:set' and `:require' forms, we can provide custom mode control.
+(defcustom global-font-lock-mode nil
+ "Toggle Global Font Lock mode.
+When Global Font Lock mode is enabled, Font Lock mode is automagically
+turned on in a buffer if its major mode is one of `font-lock-global-modes'.
+You must modify via \\[customize] for this variable to have an effect."
+ :set (lambda (symbol value)
+ (global-font-lock-mode (or value 0)))
+ :type 'boolean
+ :group 'font-lock
+ :require 'font-lock)
+
+(defcustom font-lock-global-modes t
+ "*Modes for which Font Lock mode is automagically turned on.
+Global Font Lock mode is controlled by the `global-font-lock-mode' command.
+If nil, means no modes have Font Lock mode automatically turned on.
+If t, all modes that support Font Lock mode have it automatically turned on.
+If a list, it should be a list of `major-mode' symbol names for which Font Lock
+mode should be automatically turned on. The sense of the list is negated if it
+begins with `not'. For example:
+ (c-mode c++-mode)
+means that Font Lock mode is turned on for buffers in C and C++ modes only."
+ :type '(choice (const :tag "none" nil)
+ (const :tag "all" t)
+ (set :menu-tag "mode specific" :tag "modes"
+ :value (not)
+ (const :tag "Except" not)
+ (repeat :inline t (symbol :tag "mode"))))
+ :group 'font-lock)
(defun font-lock-change-major-mode ()
;; Turn off Font Lock mode if it's on.
(when font-lock-mode
- (font-lock-mode nil))
+ (font-lock-mode))
;; Gross hack warning: Delicate readers should avert eyes now.
;; Something is running `kill-all-local-variables', which generally means the
;; major mode is being changed. Run `turn-on-font-lock-if-enabled' after the
(add-hook 'change-major-mode-hook 'font-lock-change-major-mode)
-;; End of Global Font Lock mode.
+;;; End of Global Font Lock mode.
\f
-;; Font Lock Support mode.
-;;
+;;; Font Lock Support mode.
+
;; This is the code used to interface font-lock.el with any of its add-on
;; packages, and provide the user interface. Packages that have their own
;; local buffer fontification functions (see below) may have to call
;; `font-lock-after-fontify-buffer' and/or `font-lock-after-unfontify-buffer'
;; themselves.
-;;;###autoload
-(defvar font-lock-support-mode nil
+(defcustom font-lock-support-mode nil
"*Support mode for Font Lock mode.
Support modes speed up Font Lock mode by being choosy about when fontification
occurs. Known support modes are Fast Lock mode (symbol `fast-lock-mode') and
means that Fast Lock mode is used to support Font Lock mode for buffers in C or
C++ modes, and Lazy Lock mode is used to support Font Lock mode otherwise.
-The value of this variable is used when Font Lock mode is turned on.")
+The value of this variable is used when Font Lock mode is turned on."
+ :type '(choice (const :tag "none" nil)
+ (const :tag "fast lock" fast-lock-mode)
+ (const :tag "lazy lock" lazy-lock-mode)
+ (repeat :menu-tag "mode specific" :tag "mode specific"
+ :value ((t . lazy-lock-mode))
+ (cons :tag "Instance"
+ (radio :tag "Mode"
+ (const :tag "all" t)
+ (symbol :tag "name"))
+ (radio :tag "Support"
+ (const :tag "none" nil)
+ (const :tag "fast lock" fast-lock-mode)
+ (const :tag "lazy lock" lazy-lock-mode)))
+ ))
+ :group 'font-lock)
(defvar fast-lock-mode nil)
(defvar lazy-lock-mode nil)
(lazy-lock-mode
(lazy-lock-after-unfontify-buffer))))
-;; End of Font Lock Support mode.
+;;; End of Font Lock Support mode.
\f
-;; Fontification functions.
+;;; Fontification functions.
+
+;; Rather than the function, e.g., `font-lock-fontify-region' containing the
+;; code to fontify a region, the function runs the function whose name is the
+;; value of the variable, e.g., `font-lock-fontify-region-function'. Normally,
+;; the value of this variable is, e.g., `font-lock-default-fontify-region'
+;; which does contain the code to fontify a region. However, the value of the
+;; variable could be anything and thus, e.g., `font-lock-fontify-region' could
+;; do anything. The indirection of the fontification functions gives major
+;; modes the capability of modifying the way font-lock.el fontifies. Major
+;; modes can modify the values of, e.g., `font-lock-fontify-region-function',
+;; via the variable `font-lock-defaults'.
+;;
+;; For example, Rmail mode sets the variable `font-lock-defaults' so that
+;; font-lock.el uses its own function for buffer fontification. This function
+;; makes fontification be on a message-by-message basis and so visiting an
+;; RMAIL file is much faster. A clever implementation of the function might
+;; fontify the headers differently than the message body. (It should, and
+;; correspondingly for Mail mode, but I can't be bothered to do the work. Can
+;; you?) This hints at a more interesting use...
+;;
+;; Languages that contain text normally contained in different major modes
+;; could define their own fontification functions that treat text differently
+;; depending on its context. For example, Perl mode could arrange that here
+;; docs are fontified differently than Perl code. Or Yacc mode could fontify
+;; rules one way and C code another. Neat!
+;;
+;; A further reason to use the fontification indirection feature is when the
+;; default syntactual fontification, or the default fontification in general,
+;; is not flexible enough for a particular major mode. For example, perhaps
+;; comments are just too hairy for `font-lock-fontify-syntactically-region' to
+;; cope with. You need to write your own version of that function, e.g.,
+;; `hairy-fontify-syntactically-region', and make your own version of
+;; `hairy-fontify-region' call that function before calling
+;; `font-lock-fontify-keywords-region' for the normal regexp fontification
+;; pass. And Hairy mode would set `font-lock-defaults' so that font-lock.el
+;; would call your region fontification function instead of its own. For
+;; example, TeX modes could fontify {\foo ...} and \bar{...} etc. multi-line
+;; directives correctly and cleanly. (It is the same problem as fontifying
+;; multi-line strings and comments; regexps are not appropriate for the job.)
;;;###autoload
(defun font-lock-fontify-buffer ()
(let ((verbose (if (numberp font-lock-verbose)
(> (buffer-size) font-lock-verbose)
font-lock-verbose)))
- (if verbose (message "Fontifying %s..." (buffer-name)))
+ (when verbose
+ (message "Fontifying %s..." (buffer-name)))
;; Make sure we have the right `font-lock-keywords' etc.
- (if (not font-lock-mode) (font-lock-set-defaults))
+ (unless font-lock-mode
+ (font-lock-set-defaults))
;; Make sure we fontify etc. in the whole buffer.
(save-restriction
(widen)
(setq font-lock-fontified t)))
;; We don't restore the old fontification, so it's best to unfontify.
(quit (font-lock-unfontify-buffer))))
+ ;; Make sure we undo `font-lock-keywords' etc.
+ (unless font-lock-mode
+ (font-lock-unset-defaults))
(if verbose (message "Fontifying %s...%s" (buffer-name)
(if font-lock-fontified "done" "quit")))))
(defun font-lock-default-unfontify-buffer ()
+ ;; Make sure we unfontify etc. in the whole buffer.
(save-restriction
(widen)
(font-lock-unfontify-region (point-min) (point-max))
(setq font-lock-fontified nil)))
(defun font-lock-default-fontify-region (beg end loudly)
- (save-buffer-state ((old-syntax-table (syntax-table)))
+ (save-buffer-state
+ ((parse-sexp-lookup-properties font-lock-syntactic-keywords)
+ (old-syntax-table (syntax-table)))
(unwind-protect
(save-restriction
(widen)
(set-syntax-table font-lock-syntax-table))
;; Now do the fontification.
(font-lock-unfontify-region beg end)
+ (when font-lock-syntactic-keywords
+ (font-lock-fontify-syntactic-keywords-region beg end))
(unless font-lock-keywords-only
(font-lock-fontify-syntactically-region beg end loudly))
(font-lock-fontify-keywords-region beg end loudly))
(defun font-lock-default-unfontify-region (beg end)
(save-buffer-state nil
- (remove-text-properties beg end '(face nil))))
+ (remove-text-properties beg end '(face nil syntax-table nil))))
;; 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 lines enclosing the region.
- (font-lock-fontify-region
- (progn (goto-char beg) (beginning-of-line) (point))
- (progn (goto-char end) (forward-line 1) (point))))))
+ (let ((inhibit-point-motion-hooks t))
+ (save-excursion
+ (save-match-data
+ ;; Rescan between start of lines enclosing the region.
+ (font-lock-fontify-region
+ (progn (goto-char beg) (beginning-of-line) (point))
+ (progn (goto-char end) (forward-line 1) (point)))))))
(defun font-lock-fontify-block (&optional arg)
"Fontify some lines the way `font-lock-fontify-buffer' would.
If `font-lock-mark-block-function' non-nil and no ARG is given, it is used to
delimit the region to fontify."
(interactive "P")
- (let (font-lock-beginning-of-syntax-function deactivate-mark)
+ (let ((inhibit-point-motion-hooks t) font-lock-beginning-of-syntax-function
+ deactivate-mark)
;; Make sure we have the right `font-lock-keywords' etc.
(if (not font-lock-mode) (font-lock-set-defaults))
(save-excursion
((error quit) (message "Fontifying block...%s" error-data)))))))
(define-key facemenu-keymap "\M-g" 'font-lock-fontify-block)
-\f
-;; Syntactic fontification functions.
-;; These record the parse state at a particular position, always the start of a
-;; line. Used to make `font-lock-fontify-syntactically-region' faster.
-;; Previously, `font-lock-cache-position' was just a buffer position. However,
-;; under certain situations, this occasionally resulted in mis-fontification.
-;; I think the "situations" were deletion with Lazy Lock mode's deferral. sm.
-(defvar font-lock-cache-state nil)
-(defvar font-lock-cache-position 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."
- (let ((synstart (cond (font-lock-comment-start-regexp
- (concat "\\s\"\\|" font-lock-comment-start-regexp))
- (comment-start-skip
- (concat "\\s\"\\|" comment-start-skip))
- (t
- "\\s\"")))
- (cache (marker-position font-lock-cache-position))
- state prev here beg)
- (if loudly (message "Fontifying %s... (syntactically...)" (buffer-name)))
- (goto-char start)
- ;;
- ;; Find the state at the `beginning-of-line' before `start'.
- (if (eq start cache)
- ;; 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 cache) (< start cache))
- (setq state (parse-partial-sexp (point-min) start))
- (setq state (parse-partial-sexp cache 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)
- (set-marker font-lock-cache-position start))
- ;;
- ;; If the region starts inside a string, show the extent of it.
- (when (nth 3 state)
- (setq here (point))
- (while (and (re-search-forward "\\s\"" end 'move)
- ;; Verify the state so we don't get fooled by quoting.
- (nth 3 (parse-partial-sexp here (point) nil nil state))))
- (put-text-property here (point) 'face font-lock-string-face)
- (setq state (parse-partial-sexp here (point) nil nil state)))
- ;;
- ;; Likewise for a comment.
- (when (or (nth 4 state) (nth 7 state))
- (let ((comstart (cond (font-lock-comment-start-regexp
- font-lock-comment-start-regexp)
- (comment-start-skip
- (concat "\\s<\\|" comment-start-skip))
- (t
- "\\s<")))
- (count 1))
- (setq here (point))
- (condition-case nil
- (save-restriction
- (narrow-to-region (point-min) end)
- ;; Go back to the real start of the comment.
- (re-search-backward comstart)
- (forward-comment 1)
- ;; If there is more than one comment type, then the previous
- ;; comment start might not be the real comment start.
- ;; For example, in C++ code, `here' might be on a line following
- ;; a // comment that is actually within a /* */ comment.
- (while (<= (point) here)
- (goto-char here)
- (re-search-backward comstart nil nil (incf count))
- (forward-comment 1))
- ;; Go back to the real end of the comment.
- (skip-chars-backward " \t"))
- (error (goto-char end)))
- (put-text-property here (point) 'face font-lock-comment-face)
- (setq state (parse-partial-sexp here (point) nil nil state))))
- ;;
- ;; Find each interesting place between here and `end'.
- (while (and (< (point) end)
- (setq prev (point))
- (re-search-forward synstart end t)
- (setq state (parse-partial-sexp prev (point) nil nil state)))
- (cond ((nth 3 state)
- ;;
- ;; Found a real string start.
- (setq here (point) beg (match-beginning 0))
- (condition-case nil
- (save-restriction
- (narrow-to-region (point-min) end)
- (goto-char (scan-sexps beg 1)))
- (error (goto-char end)))
- (put-text-property beg (point) 'face font-lock-string-face)
- (setq state (parse-partial-sexp here (point) nil nil state)))
- ((or (nth 4 state) (nth 7 state))
- ;;
- ;; Found a real comment start.
- (setq here (point) beg (or (match-end 1) (match-beginning 0)))
- (goto-char beg)
- (condition-case nil
- (save-restriction
- (narrow-to-region (point-min) end)
- (forward-comment 1)
- (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)))))))
+;;; End of Fontification functions.
\f
;;; Additional text property functions.
; (t
; (put-text-property start next prop new object))))))
; (setq start (text-property-not-all next end prop nil object)))))
+
+;;; End of Additional text property functions.
\f
-;;; Regexp fontification functions.
+;;; Syntactic regexp fontification functions.
+
+;; These syntactic keyword pass functions are identical to those keyword pass
+;; functions below, with the following exceptions; (a) they operate on
+;; `font-lock-syntactic-keywords' of course, (b) they are all `defun' as speed
+;; is less of an issue, (c) eval of property value does not occur JIT as speed
+;; is less of an issue, (d) OVERRIDE cannot be `prepend' or `append' as it
+;; makes no sense for `syntax-table' property values, (e) they do not do it
+;; LOUDLY as it is not likely to be intensive.
+
+(defun font-lock-apply-syntactic-highlight (highlight)
+ "Apply HIGHLIGHT following a match.
+HIGHLIGHT should be of the form MATCH-HIGHLIGHT,
+see `font-lock-syntactic-keywords'."
+ (let* ((match (nth 0 highlight))
+ (start (match-beginning match)) (end (match-end match))
+ (value (nth 1 highlight))
+ (override (nth 2 highlight)))
+ (unless (numberp (car value))
+ (setq value (eval value)))
+ (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)))
+ ((not override)
+ ;; Cannot override existing fontification.
+ (or (text-property-not-all start end 'syntax-table nil)
+ (put-text-property start end 'syntax-table value)))
+ ((eq override t)
+ ;; Override existing fontification.
+ (put-text-property start end 'syntax-table value))
+ ((eq override 'keep)
+ ;; Keep existing fontification.
+ (font-lock-fillin-text-property start end 'syntax-table value)))))
+
+(defun font-lock-fontify-syntactic-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-syntactic-highlight (car highlights))
+ (setq highlights (cdr highlights)))))
+ ;; Evaluate POST-MATCH-FORM.
+ (eval (nth 2 keywords))))
+
+(defun font-lock-fontify-syntactic-keywords-region (start end)
+ "Fontify according to `font-lock-syntactic-keywords' between START and END.
+START should be at the beginning of a line."
+ ;; If `font-lock-syntactic-keywords' is a symbol, get the real keywords.
+ (when (symbolp font-lock-syntactic-keywords)
+ (setq font-lock-syntactic-keywords (font-lock-eval-keywords
+ font-lock-syntactic-keywords)))
+ ;; If `font-lock-syntactic-keywords' is not compiled, compile it.
+ (unless (eq (car font-lock-syntactic-keywords) t)
+ (setq font-lock-syntactic-keywords (font-lock-compile-keywords
+ font-lock-syntactic-keywords)))
+ ;; Get down to business.
+ (let ((case-fold-search font-lock-keywords-case-fold-search)
+ (keywords (cdr font-lock-syntactic-keywords))
+ keyword matcher highlights)
+ (while keywords
+ ;; Find an occurrence of `matcher' from `start' to `end'.
+ (setq keyword (car keywords) matcher (car keyword))
+ (goto-char start)
+ (while (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)))
+ (font-lock-apply-syntactic-highlight (car highlights))
+ (font-lock-fontify-syntactic-anchored-keywords (car highlights)
+ end))
+ (setq highlights (cdr highlights))))
+ (setq keywords (cdr keywords)))))
+
+;;; End of Syntactic regexp fontification functions.
+\f
+;;; Syntactic fontification functions.
+
+;; These record the parse state at a particular position, always the start of a
+;; line. Used to make `font-lock-fontify-syntactically-region' faster.
+;; Previously, `font-lock-cache-position' was just a buffer position. However,
+;; under certain situations, this occasionally resulted in mis-fontification.
+;; I think the "situations" were deletion with Lazy Lock mode's deferral. sm.
+(defvar font-lock-cache-state nil)
+(defvar font-lock-cache-position 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."
+ (let ((cache (marker-position font-lock-cache-position))
+ state string beg)
+ (if loudly (message "Fontifying %s... (syntactically...)" (buffer-name)))
+ (goto-char start)
+ ;;
+ ;; Find the state at the `beginning-of-line' before `start'.
+ (if (eq start cache)
+ ;; 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 cache) (< start cache))
+ (setq state (parse-partial-sexp (point-min) start))
+ (setq state (parse-partial-sexp cache 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)
+ (set-marker font-lock-cache-position start))
+ ;;
+ ;; If the region starts inside a string or comment, show the extent of it.
+ (when (or (nth 3 state) (nth 4 state))
+ (setq string (nth 3 state) beg (point))
+ (setq state (parse-partial-sexp (point) end nil nil state 'syntax-table))
+ (put-text-property beg (point) 'face
+ (if string
+ font-lock-string-face
+ font-lock-comment-face)))
+ ;;
+ ;; Find each interesting place between here and `end'.
+ (while (and (< (point) end)
+ (progn
+ (setq state (parse-partial-sexp (point) end nil nil state
+ 'syntax-table))
+ (or (nth 3 state) (nth 4 state))))
+ (setq string (nth 3 state) beg (nth 8 state))
+ (setq state (parse-partial-sexp (point) end nil nil state 'syntax-table))
+ (put-text-property beg (point) 'face
+ (if string
+ font-lock-string-face
+ font-lock-comment-face)))))
+
+;;; End of Syntactic fontification functions.
+\f
+;;; Keyword regexp fontification functions.
(defsubst font-lock-apply-highlight (highlight)
"Apply HIGHLIGHT following a match.
(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'."
- (let ((matcher (nth 0 keywords)) (lowdarks (nthcdr 3 keywords)) highlights)
- ;; Until we come up with a cleaner solution, we make LIMIT the end of line.
- (save-excursion (end-of-line) (setq limit (min limit (point))))
- ;; Evaluate PRE-MATCH-FORM.
- (eval (nth 1 keywords))
+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)
(defun font-lock-fontify-keywords-region (start end &optional loudly)
"Fontify according to `font-lock-keywords' between START and END.
START should be at the beginning of a line."
+ (unless (eq (car font-lock-keywords) t)
+ (setq font-lock-keywords (font-lock-compile-keywords font-lock-keywords)))
(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))))
+ (keywords (cdr font-lock-keywords))
(bufname (buffer-name)) (count 0)
keyword matcher highlights)
;;
(font-lock-fontify-anchored-keywords (car highlights) end))
(setq highlights (cdr highlights))))
(setq keywords (cdr keywords)))))
+
+;;; End of Keyword regexp fontification functions.
\f
;; Various functions.
-(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-keywords (keywords)
+ ;; Compile KEYWORDS into the form (t KEYWORD ...) where KEYWORD is of the
+ ;; form (MATCHER HIGHLIGHT ...) as shown in `font-lock-keywords' doc string.
+ (if (eq (car-safe keywords) t)
+ keywords
+ (cons t (mapcar 'font-lock-compile-keyword keywords))))
(defun font-lock-compile-keyword (keyword)
(cond ((nlistp keyword) ; MATCHER
(t ; (MATCHER HIGHLIGHT ...)
keyword)))
+(defun font-lock-eval-keywords (keywords)
+ ;; Evalulate KEYWORDS if a function (funcall) or variable (eval) name.
+ (if (listp keywords)
+ keywords
+ (font-lock-eval-keywords (if (fboundp keywords)
+ (funcall keywords)
+ (eval keywords)))))
+
(defun font-lock-value-in-major-mode (alist)
;; Return value in ALIST for `major-mode', or ALIST if it is not an alist.
;; Structure is ((MAJOR-MODE . VALUE) ...) where MAJOR-MODE may be t.
"Set fontification defaults appropriately for this mode.
Sets various variables using `font-lock-defaults' (or, if nil, using
`font-lock-defaults-alist') and `font-lock-maximum-decoration'."
- ;; Set face defaults.
- (font-lock-make-faces)
;; Set fontification defaults.
(make-local-variable 'font-lock-fontified)
;; Set iff not previously set.
(font-lock-value-in-major-mode font-lock-maximum-decoration)))
(local (cdr (assq major-mode font-lock-keywords-alist))))
;; Regexp fontification?
- (setq font-lock-keywords (if (fboundp keywords)
- (funcall keywords)
- (eval keywords)))
+ (set (make-local-variable 'font-lock-keywords)
+ (font-lock-compile-keywords (font-lock-eval-keywords keywords)))
;; Local fontification?
(while local
(font-lock-add-keywords nil (car (car local)) (cdr (car local)))
;; Variable alist?
(let ((alist (nthcdr 5 defaults)))
(while alist
- (set (make-local-variable (car (car alist))) (cdr (car alist)))
- (setq alist (cdr alist)))))))
+ (let ((variable (car (car alist))) (value (cdr (car alist))))
+ (unless (boundp variable)
+ (set variable nil))
+ (set (make-local-variable variable) value)
+ (setq alist (cdr alist))))))))
(defun font-lock-unset-defaults ()
"Unset fontification defaults. See `font-lock-set-defaults'."
(set (car (car alist)) (default-value (car (car alist))))
(setq alist (cdr alist)))))
\f
-;; Colour etc. support.
-
-;; This section of code is crying out for revision. Come on down, custom.el?
-
-;; To begin with, `display-type' and `background-mode' are `frame-parameters'
-;; so we don't have to calculate them here anymore. But all the face stuff
-;; should be frame-local (and thus display-local) anyway. Because we're not
-;; sure what support Emacs is going to have for general frame-local face
-;; attributes, we leave this section of code as it is. For now. sm.
-
-(defvar font-lock-display-type nil
- "A symbol indicating the display Emacs is running under.
-The symbol should be one of `color', `grayscale' or `mono'.
-If Emacs guesses this display attribute wrongly, either set this variable in
-your `~/.emacs' or set the resource `Emacs.displayType' in your `~/.Xdefaults'.
-See also `font-lock-background-mode' and `font-lock-face-attributes'.")
-
-(defvar font-lock-background-mode nil
- "A symbol indicating the Emacs background brightness.
-The symbol should be one of `light' or `dark'.
-If Emacs guesses this frame attribute wrongly, either set this variable in
-your `~/.emacs' or set the resource `Emacs.backgroundMode' in your
-`~/.Xdefaults'.
-See also `font-lock-display-type' and `font-lock-face-attributes'.")
-
-(defvar font-lock-face-attributes nil
- "A list of default attributes to use for face attributes.
-Each element of the list should be of the form
-
- (FACE FOREGROUND BACKGROUND BOLD-P ITALIC-P UNDERLINE-P)
-
-where FACE could be one of the face symbols `font-lock-comment-face',
-`font-lock-string-face', `font-lock-keyword-face', `font-lock-builtin-face',
-`font-lock-type-face', `font-lock-function-name-face',
-`font-lock-variable-name-face', `font-lock-reference-face' and
-`font-lock-warning-face', or any other face symbols and attributes may be
-specified here and used in `font-lock-keywords'.
-
-Subsequent element items should be the attributes for the corresponding
-Font Lock mode faces. Attributes FOREGROUND and BACKGROUND should be strings
-\(default if nil), while BOLD-P, ITALIC-P, and UNDERLINE-P should specify the
-corresponding face attributes (yes if non-nil). For example:
-
- (setq font-lock-face-attributes '((font-lock-warning-face \"HotPink\" nil t t)
- (font-lock-comment-face \"Red\")))
-
-in your ~/.emacs makes a garish bold-italic warning face and red comment face.
-
-Emacs uses default attributes based on display type and background brightness.
-See variables `font-lock-display-type' and `font-lock-background-mode'.
-
-Resources can be used to over-ride these face attributes. For example, the
-resource `Emacs.font-lock-comment-face.attributeUnderline' can be used to
-specify the UNDERLINE-P attribute for face `font-lock-comment-face'.")
-
-(defun font-lock-make-faces (&optional override)
- "Make faces from `font-lock-face-attributes'.
-A default list is used if this is nil.
-If optional OVERRIDE is non-nil, faces that already exist are reset.
-See `font-lock-make-face' and `list-faces-display'."
- ;; We don't need to `setq' any of these variables, but the user can see what
- ;; is being used if we do.
- (unless font-lock-display-type
- (setq font-lock-display-type
- (let ((display-resource (x-get-resource ".displayType" "DisplayType")))
- (cond (display-resource (intern (downcase display-resource)))
- ((x-display-color-p) 'color)
- ((x-display-grayscale-p) 'grayscale)
- (t 'mono)))))
- (unless font-lock-background-mode
- (setq font-lock-background-mode
- (let ((bg-resource (x-get-resource ".backgroundMode" "BackgroundMode"))
- (params (frame-parameters)))
- (cond (bg-resource (intern (downcase bg-resource)))
- ((eq system-type 'ms-dos)
- (if (string-match "light" (cdr (assq 'background-color params)))
- 'light
- 'dark))
- ((< (apply '+ (x-color-values
- (cdr (assq 'background-color params))))
- (* (apply '+ (x-color-values "white")) .6))
- 'dark)
- (t 'light)))))
- (let ((face-attributes
- (let ((light-bg (eq font-lock-background-mode 'light)))
- (cond ((memq font-lock-display-type '(mono monochrome))
- ;; Emacs 19.25's font-lock defaults:
- ;;'((font-lock-comment-face nil nil nil t nil)
- ;; (font-lock-string-face nil nil nil nil t)
- ;; (font-lock-keyword-face nil nil t nil nil)
- ;; (font-lock-function-name-face nil nil t t nil)
- ;; (font-lock-type-face nil nil nil t nil))
- (list '(font-lock-comment-face nil nil t t nil)
- '(font-lock-string-face nil nil nil t nil)
- '(font-lock-keyword-face nil nil t nil nil)
- '(font-lock-builtin-face nil nil t nil nil)
- (list
- 'font-lock-function-name-face
- (cdr (assq 'background-color (frame-parameters)))
- (cdr (assq 'foreground-color (frame-parameters)))
- t nil nil)
- '(font-lock-variable-name-face nil nil t t nil)
- '(font-lock-type-face nil nil t nil t)
- '(font-lock-reference-face nil nil t nil t)
- (list
- 'font-lock-warning-face
- (cdr (assq 'background-color (frame-parameters)))
- (cdr (assq 'foreground-color (frame-parameters)))
- t nil nil)))
- ((memq font-lock-display-type '(grayscale greyscale
- grayshade greyshade))
- (list
- (list 'font-lock-comment-face
- (if light-bg "DimGray" "LightGray") nil t t nil)
- (list 'font-lock-string-face
- (if light-bg "DimGray" "LightGray") nil nil t nil)
- (list 'font-lock-keyword-face
- nil (if light-bg "LightGray" "DimGray") t nil nil)
- (list 'font-lock-builtin-face
- nil (if light-bg "LightGray" "DimGray") t nil nil)
- (list 'font-lock-function-name-face
- (cdr (assq 'background-color (frame-parameters)))
- (cdr (assq 'foreground-color (frame-parameters)))
- t nil nil)
- (list 'font-lock-variable-name-face
- nil (if light-bg "Gray90" "DimGray") t t nil)
- (list 'font-lock-type-face
- nil (if light-bg "Gray80" "DimGray") t nil nil)
- (list 'font-lock-reference-face
- nil (if light-bg "LightGray" "Gray50") t nil t)
- (list 'font-lock-warning-face
- (cdr (assq 'background-color (frame-parameters)))
- (cdr (assq 'foreground-color (frame-parameters)))
- t nil nil)))
- (light-bg ; light colour background
- '((font-lock-comment-face "Firebrick")
- (font-lock-string-face "RosyBrown")
- (font-lock-keyword-face "Purple")
- (font-lock-builtin-face "Orchid")
- (font-lock-function-name-face "Blue")
- (font-lock-variable-name-face "DarkGoldenrod")
- (font-lock-type-face "DarkOliveGreen")
- (font-lock-reference-face "CadetBlue")
- (font-lock-warning-face "Red" nil t nil nil)))
- (t ; dark colour background
- '((font-lock-comment-face "OrangeRed")
- (font-lock-string-face "LightSalmon")
- (font-lock-keyword-face "Cyan")
- (font-lock-builtin-face "LightSteelBlue")
- (font-lock-function-name-face "LightSkyBlue")
- (font-lock-variable-name-face "LightGoldenrod")
- (font-lock-type-face "PaleGreen")
- (font-lock-reference-face "Aquamarine")
- (font-lock-warning-face "Pink" nil t nil nil)))))))
+;;; Colour etc. support.
+
+;; Originally these variable values were face names such as `bold' etc.
+;; Now we create our own faces, but we keep these variables for compatibility
+;; and they give users another mechanism for changing face appearance.
+;; We now allow a FACENAME in `font-lock-keywords' to be any expression that
+;; returns a face. So the easiest thing is to continue using these variables,
+;; rather than sometimes evaling FACENAME and sometimes not. sm.
+(defvar font-lock-comment-face 'font-lock-comment-face
+ "Face name to use for comments.")
+
+(defvar font-lock-string-face 'font-lock-string-face
+ "Face name to use for strings.")
+
+(defvar font-lock-keyword-face 'font-lock-keyword-face
+ "Face name to use for keywords.")
+
+(defvar font-lock-builtin-face 'font-lock-builtin-face
+ "Face name to use for builtins.")
+
+(defvar font-lock-function-name-face 'font-lock-function-name-face
+ "Face name to use for function names.")
+
+(defvar font-lock-variable-name-face 'font-lock-variable-name-face
+ "Face name to use for variable names.")
+
+(defvar font-lock-type-face 'font-lock-type-face
+ "Face name to use for type and class names.")
+
+(defvar font-lock-constant-face 'font-lock-constant-face
+ "Face name to use for constant and label names.")
+
+(defvar font-lock-warning-face 'font-lock-warning-face
+ "Face name to use for things that should stand out.")
+
+(defvar font-lock-reference-face 'font-lock-constant-face
+ "This variable is obsolete. Use font-lock-constant-face.")
+
+;; Originally face attributes were specified via `font-lock-face-attributes'.
+;; Users then changed the default face attributes by setting that variable.
+;; However, we try and be back-compatible and respect its value if set except
+;; for faces where M-x customize has been used to save changes for the face.
+(when (boundp 'font-lock-face-attributes)
+ (let ((face-attributes font-lock-face-attributes))
(while face-attributes
- (unless (assq (car (car face-attributes)) font-lock-face-attributes)
- (push (car face-attributes) font-lock-face-attributes))
- (setq face-attributes (cdr face-attributes))))
- ;; Now make the faces if we have to.
- (mapcar (function
- (lambda (face-attributes)
- (let ((face (nth 0 face-attributes)))
- (cond (override
- ;; We can stomp all over it anyway. Get outta my face!
- (font-lock-make-face face-attributes))
- ((and (boundp face) (facep (symbol-value face)))
- ;; The variable exists and is already bound to a face.
- nil)
- ((facep face)
- ;; We already have a face so we bind the variable to it.
- (set face face))
- (t
- ;; No variable or no face.
- (font-lock-make-face face-attributes))))))
- font-lock-face-attributes))
-
-(defun font-lock-make-face (face-attributes)
- "Make a face from FACE-ATTRIBUTES.
-FACE-ATTRIBUTES should be like an element `font-lock-face-attributes', so that
-the face name is the first item in the list. A variable with the same name as
-the face is also set; its value is the face name."
- (let* ((face (nth 0 face-attributes))
- (face-name (symbol-name face))
- (set-p (function (lambda (face-name resource)
- (x-get-resource (concat face-name ".attribute" resource)
- (concat "Face.Attribute" resource)))))
- (on-p (function (lambda (face-name resource)
- (let ((set (funcall set-p face-name resource)))
- (and set (member (downcase set) '("on" "true"))))))))
- (make-face face)
- (add-to-list 'facemenu-unlisted-faces face)
- ;; Set attributes not set from X resources (and therefore `make-face').
- (or (funcall set-p face-name "Foreground")
- (condition-case nil
- (set-face-foreground face (nth 1 face-attributes))
- (error nil)))
- (or (funcall set-p face-name "Background")
- (condition-case nil
- (set-face-background face (nth 2 face-attributes))
- (error nil)))
- (if (funcall set-p face-name "Bold")
- (and (funcall on-p face-name "Bold") (make-face-bold face nil t))
- (and (nth 3 face-attributes) (make-face-bold face nil t)))
- (if (funcall set-p face-name "Italic")
- (and (funcall on-p face-name "Italic") (make-face-italic face nil t))
- (and (nth 4 face-attributes) (make-face-italic face nil t)))
- (or (funcall set-p face-name "Underline")
- (set-face-underline-p face (nth 5 face-attributes)))
- (set face face)))
+ (let* ((face-attribute (pop face-attributes))
+ (face (car face-attribute)))
+ ;; Rustle up a `defface' SPEC from a `font-lock-face-attributes' entry.
+ (unless (get face 'saved-face)
+ (let ((foreground (nth 1 face-attribute))
+ (background (nth 2 face-attribute))
+ (bold-p (nth 3 face-attribute))
+ (italic-p (nth 4 face-attribute))
+ (underline-p (nth 5 face-attribute))
+ face-spec)
+ (when foreground
+ (setq face-spec (cons ':foreground (cons foreground face-spec))))
+ (when background
+ (setq face-spec (cons ':background (cons background face-spec))))
+ (when bold-p
+ (setq face-spec (append '(:bold t) face-spec)))
+ (when italic-p
+ (setq face-spec (append '(:italic t) face-spec)))
+ (when underline-p
+ (setq face-spec (append '(:underline t) face-spec)))
+ (custom-declare-face face (list (list t face-spec)) nil)))))))
+
+;; But now we do it the custom way. Note that `defface' will not overwrite any
+;; faces declared above via `custom-declare-face'.
+(defface font-lock-comment-face
+ '((((class grayscale) (background light))
+ (:foreground "DimGray" :bold t :italic t))
+ (((class grayscale) (background dark))
+ (:foreground "LightGray" :bold t :italic t))
+ (((class color) (background light)) (:foreground "Firebrick"))
+ (((class color) (background dark)) (:foreground "OrangeRed"))
+ (t (:bold t :italic t)))
+ "Font Lock mode face used to highlight comments."
+ :group 'font-lock-highlighting-faces)
+
+(defface font-lock-string-face
+ '((((class grayscale) (background light)) (:foreground "DimGray" :italic t))
+ (((class grayscale) (background dark)) (:foreground "LightGray" :italic t))
+ (((class color) (background light)) (:foreground "RosyBrown"))
+ (((class color) (background dark)) (:foreground "LightSalmon"))
+ (t (:italic t)))
+ "Font Lock mode face used to highlight strings."
+ :group 'font-lock-highlighting-faces)
+
+(defface font-lock-keyword-face
+ '((((class grayscale) (background light)) (:foreground "LightGray" :bold t))
+ (((class grayscale) (background dark)) (:foreground "DimGray" :bold t))
+ (((class color) (background light)) (:foreground "Purple"))
+ (((class color) (background dark)) (:foreground "Cyan"))
+ (t (:bold t)))
+ "Font Lock mode face used to highlight keywords."
+ :group 'font-lock-highlighting-faces)
+
+(defface font-lock-builtin-face
+ '((((class grayscale) (background light)) (:foreground "LightGray" :bold t))
+ (((class grayscale) (background dark)) (:foreground "DimGray" :bold t))
+ (((class color) (background light)) (:foreground "Orchid"))
+ (((class color) (background dark)) (:foreground "LightSteelBlue"))
+ (t (:bold t)))
+ "Font Lock mode face used to highlight builtins."
+ :group 'font-lock-highlighting-faces)
+
+(defface font-lock-function-name-face
+ '((((class color) (background light)) (:foreground "Blue"))
+ (((class color) (background dark)) (:foreground "LightSkyBlue"))
+ (t (:inverse-video t :bold t)))
+ "Font Lock mode face used to highlight function names."
+ :group 'font-lock-highlighting-faces)
+
+(defface font-lock-variable-name-face
+ '((((class grayscale) (background light))
+ (:foreground "Gray90" :bold t :italic t))
+ (((class grayscale) (background dark))
+ (:foreground "DimGray" :bold t :italic t))
+ (((class color) (background light)) (:foreground "DarkGoldenrod"))
+ (((class color) (background dark)) (:foreground "LightGoldenrod"))
+ (t (:bold t :italic t)))
+ "Font Lock mode face used to highlight variable names."
+ :group 'font-lock-highlighting-faces)
+
+(defface font-lock-type-face
+ '((((class grayscale) (background light)) (:foreground "Gray90" :bold t))
+ (((class grayscale) (background dark)) (:foreground "DimGray" :bold t))
+ (((class color) (background light)) (:foreground "ForestGreen"))
+ (((class color) (background dark)) (:foreground "PaleGreen"))
+ (t (:bold t :underline t)))
+ "Font Lock mode face used to highlight type and classes."
+ :group 'font-lock-highlighting-faces)
+
+(defface font-lock-constant-face
+ '((((class grayscale) (background light))
+ (:foreground "LightGray" :bold t :underline t))
+ (((class grayscale) (background dark))
+ (:foreground "Gray50" :bold t :underline t))
+ (((class color) (background light)) (:foreground "CadetBlue"))
+ (((class color) (background dark)) (:foreground "Aquamarine"))
+ (t (:bold t :underline t)))
+ "Font Lock mode face used to highlight constants and labels."
+ :group 'font-lock-highlighting-faces)
+
+(defface font-lock-warning-face
+ '((((class color) (background light)) (:foreground "Red" :bold t))
+ (((class color) (background dark)) (:foreground "Pink" :bold t))
+ (t (:inverse-video t :bold t)))
+ "Font Lock mode face used to highlight warnings."
+ :group 'font-lock-highlighting-faces)
+
+;;; End of Colour etc. support.
+\f
+;;; Menu support.
+
+;; This section of code is commented out because Emacs does not have real menu
+;; buttons. (We can mimic them by putting "( ) " or "(X) " at the beginning of
+;; the menu entry text, but with Xt it looks both ugly and embarrassingly
+;; amateur.) If/When Emacs gets real menus buttons, put in menu-bar.el after
+;; the entry for "Text Properties" something like:
+;;
+;; (define-key menu-bar-edit-menu [font-lock]
+;; (cons "Syntax Highlighting" font-lock-menu))
+;;
+;; and remove a single ";" from the beginning of each line in the rest of this
+;; section. Probably the mechanism for telling the menu code what are menu
+;; buttons and when they are on or off needs tweaking. I have assumed that the
+;; mechanism is via `menu-toggle' and `menu-selected' symbol properties. sm.
+
+;;;;###autoload
+;(progn
+; ;; Make the Font Lock menu.
+; (defvar font-lock-menu (make-sparse-keymap "Syntax Highlighting"))
+; ;; Add the menu items in reverse order.
+; (define-key font-lock-menu [fontify-less]
+; '("Less In Current Buffer" . font-lock-fontify-less))
+; (define-key font-lock-menu [fontify-more]
+; '("More In Current Buffer" . font-lock-fontify-more))
+; (define-key font-lock-menu [font-lock-sep]
+; '("--"))
+; (define-key font-lock-menu [font-lock-mode]
+; '("In Current Buffer" . font-lock-mode))
+; (define-key font-lock-menu [global-font-lock-mode]
+; '("In All Buffers" . global-font-lock-mode)))
+;
+;;;;###autoload
+;(progn
+; ;; We put the appropriate `menu-enable' etc. symbol property values on when
+; ;; font-lock.el is loaded, so we don't need to autoload the three variables.
+; (put 'global-font-lock-mode 'menu-toggle t)
+; (put 'font-lock-mode 'menu-toggle t)
+; (put 'font-lock-fontify-more 'menu-enable '(identity))
+; (put 'font-lock-fontify-less 'menu-enable '(identity)))
+;
+;;; Put the appropriate symbol property values on now. See above.
+;(put 'global-font-lock-mode 'menu-selected 'global-font-lock-mode)
+;(put 'font-lock-mode 'menu-selected 'font-lock-mode)
+;(put 'font-lock-fontify-more 'menu-enable '(nth 2 font-lock-fontify-level))
+;(put 'font-lock-fontify-less 'menu-enable '(nth 1 font-lock-fontify-level))
+;
+;(defvar font-lock-fontify-level nil) ; For less/more fontification.
+;
+;(defun font-lock-fontify-level (level)
+; (let ((font-lock-maximum-decoration level))
+; (when font-lock-mode
+; (font-lock-mode))
+; (font-lock-mode)
+; (when font-lock-verbose
+; (message "Fontifying %s... level %d" (buffer-name) level))))
+;
+;(defun font-lock-fontify-less ()
+; "Fontify the current buffer with less decoration.
+;See `font-lock-maximum-decoration'."
+; (interactive)
+; ;; Check in case we get called interactively.
+; (if (nth 1 font-lock-fontify-level)
+; (font-lock-fontify-level (1- (car font-lock-fontify-level)))
+; (error "No less decoration")))
+;
+;(defun font-lock-fontify-more ()
+; "Fontify the current buffer with more decoration.
+;See `font-lock-maximum-decoration'."
+; (interactive)
+; ;; Check in case we get called interactively.
+; (if (nth 2 font-lock-fontify-level)
+; (font-lock-fontify-level (1+ (car font-lock-fontify-level)))
+; (error "No more decoration")))
+;
+;;; This should be called by `font-lock-set-defaults'.
+;(defun font-lock-set-menu ()
+; ;; Activate less/more fontification entries if there are multiple levels for
+; ;; the current buffer. Sets `font-lock-fontify-level' to be of the form
+; ;; (CURRENT-LEVEL IS-LOWER-LEVEL-P IS-HIGHER-LEVEL-P) for menu activation.
+; (let ((keywords (or (nth 0 font-lock-defaults)
+; (nth 1 (assq major-mode font-lock-defaults-alist))))
+; (level (font-lock-value-in-major-mode font-lock-maximum-decoration)))
+; (make-local-variable 'font-lock-fontify-level)
+; (if (or (symbolp keywords) (= (length keywords) 1))
+; (font-lock-unset-menu)
+; (cond ((eq level t)
+; (setq level (1- (length keywords))))
+; ((or (null level) (zerop level))
+; ;; The default level is usually, but not necessarily, level 1.
+; (setq level (- (length keywords)
+; (length (member (eval (car keywords))
+; (mapcar 'eval (cdr keywords))))))))
+; (setq font-lock-fontify-level (list level (> level 1)
+; (< level (1- (length keywords))))))))
+;
+;;; This should be called by `font-lock-unset-defaults'.
+;(defun font-lock-unset-menu ()
+; ;; Deactivate less/more fontification entries.
+; (setq font-lock-fontify-level nil))
+
+;;; End of Menu support.
\f
;;; Various regexp information shared by several modes.
;;; Information specific to a single mode should go in its load library.
;; Font Lock support for C, C++, Objective-C and Java modes will one day be in
-;; cc-font.el (and required by cc-mode.el). However, the below function should
-;; stay in font-lock.el, since it is used by other libraries. sm.
+;; some cc-font.el (and required by cc-mode.el). However, the below function
+;; should stay in font-lock.el, since it is used by other libraries. sm.
(defun font-lock-match-c-style-declaration-item-and-skip-to-next (limit)
"Match, and move over, any declaration/definition item after point.
Matches after point, but ignores leading whitespace and `*' characters.
Does not move further than LIMIT.
-The expected syntax of a declaration/definition item is `word', possibly ending
-with optional whitespace and a `('. Everything following the item (but
-belonging to it) is expected to by skip-able by `scan-sexps', and items are
-expected to be separated with a `,' and to be terminated with a `;'.
+The expected syntax of a declaration/definition item is `word' (preceded by
+optional whitespace and `*' characters and proceeded by optional whitespace)
+optionally followed by a `('. Everything following the item (but belonging to
+it) is expected to by skip-able by `scan-sexps', and items are expected to be
+separated with a `,' and to be terminated with a `;'.
Thus the regexp matches after point: word (
^^^^ ^
(goto-char (or (scan-sexps (point) 1) (point-max))))
(goto-char (match-end 2)))
(error t)))))
-
+\f
+;; Lisp.
(defconst lisp-font-lock-keywords-1
(eval-when-compile
(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\\("
+ ;;
+ ;; Definitions.
+ (list (concat "(\\(def\\("
+ ;; Function declarations.
+ "\\(advice\\|alias\\|generic\\|macro\\*?\\|method\\|"
+ "setf\\|subst\\*?\\|un\\*?\\|"
+ "ine-\\(derived-mode\\|function\\|condition\\|"
+ "skeleton\\|widget\\|setf-expander\\|method-combination\\|"
+ "\\(symbol\\|compiler\\|modify\\)-macro\\)\\)\\|"
;; Variable declarations.
- "\\(const\\|custom\\|var\\)\\|"
+ "\\(const\\(ant\\)?\\|custom\\|face\\|var\\|parameter\\)\\|"
;; Structure declarations.
- "\\(class\\|struct\\|type\\)\\|"
- ;; Everything else is a function declaration.
- "\\sw+"
+ "\\(class\\|group\\|package\\|struct\\|type\\)"
"\\)\\)\\>"
- ;; Any whitespace and declared object.
+ ;; Any whitespace and defined object.
"[ \t'\(]*"
"\\(\\sw+\\)?")
'(1 font-lock-keyword-face)
- '(5 (cond ((match-beginning 3) font-lock-variable-name-face)
- ((match-beginning 4) font-lock-type-face)
- (t font-lock-function-name-face))
+ '(9 (cond ((match-beginning 3) font-lock-function-name-face)
+ ((match-beginning 6) font-lock-variable-name-face)
+ (t font-lock-type-face))
nil t))
+ ;;
+ ;; Emacs Lisp autoload cookies.
+ '("^;;;###\\(autoload\\)\\>" 1 font-lock-warning-face prepend)
))
- "Subdued level highlighting for Lisp modes.")
+ "Subdued level highlighting for Lisp modes.")
(defconst lisp-font-lock-keywords-2
(append lisp-font-lock-keywords-1
(eval-when-compile
(list
;;
- ;; Control structures. Common ELisp and CLisp forms combined.
-; (make-regexp
-; '("cond" "if" "while" "let\\*?" "prog[nv12*]?" "inline" "catch" "throw"
-; "save-restriction" "save-excursion" "save-window-excursion"
-; "save-selected-window" "save-match-data" "save-current-buffer"
-; "unwind-protect" "condition-case" "track-mouse" "dont-compile"
-; "eval-after-load" "eval-and-compile" "eval-when-compile"
-; "when" "unless" "do" "flet" "labels" "return" "return-from"
-; "with-output-to-temp-buffer" "with-timeout" "with-current-buffer"
-; "with-temp-buffer" "with-temp-file"))
- (cons (concat "(\\("
- "c\\(atch\\|ond\\(\\|ition-case\\)\\)\\|"
- "do\\(\\|nt-compile\\)\\|"
- "eval-\\(a\\(fter-load\\|nd-compile\\)\\|"
- "when-compile\\)\\|flet\\|i\\(f\\|nline\\)\\|"
- "l\\(abels\\|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-temp-buffer\\|"
- "t\\(emp-\\(buffer\\|file\\)\\|imeout\\)\\)\\)"
- "\\)\\>")
+ ;; Control structures. Emacs Lisp forms.
+ (cons (concat
+ "(" (regexp-opt
+ '("cond" "if" "while" "catch" "throw" "let" "let*"
+ "prog" "progn" "progv" "prog1" "prog2" "prog*"
+ "inline" "save-restriction" "save-excursion"
+ "save-window-excursion" "save-selected-window"
+ "save-match-data" "save-current-buffer" "unwind-protect"
+ "condition-case" "track-mouse"
+ "eval-after-load" "eval-and-compile" "eval-when-compile"
+ "eval-when" "lambda"
+ "with-current-buffer" "with-electric-help"
+ "with-output-to-string" "with-output-to-temp-buffer"
+ "with-temp-buffer" "with-temp-file"
+ "with-timeout") t)
+ "\\>")
+ 1)
+ ;;
+ ;; Control structures. Common Lisp forms.
+ (cons (concat
+ "(" (regexp-opt
+ '("when" "unless" "case" "ecase" "typecase" "etypecase"
+ "ccase" "ctypecase" "handler-case" "handler-bind"
+ "restart-bind" "restart-case" "in-package"
+ "assert" "abort" "error" "cerror" "break" "ignore-errors"
+ "loop" "do" "do*" "dotimes" "dolist" "the" "locally"
+ "proclaim" "declaim" "declare" "symbol-macrolet"
+ "lexical-let" "lexical-let*" "flet" "labels" "compiler-let"
+ "destructuring-bind" "macrolet" "tagbody" "block"
+ "return" "return-from") t)
+ "\\>")
1)
;;
- ;; Feature symbols as references.
+ ;; Feature symbols as constants.
'("(\\(featurep\\|provide\\|require\\)\\>[ \t']*\\(\\sw+\\)?"
- (1 font-lock-keyword-face) (2 font-lock-reference-face nil t))
+ (1 font-lock-keyword-face) (2 font-lock-constant-face nil t))
;;
;; Words inside \\[] tend to be for `substitute-command-keys'.
- '("\\\\\\\\\\[\\(\\sw+\\)]" 1 font-lock-reference-face prepend)
+ '("\\\\\\\\\\[\\(\\sw+\\)]" 1 font-lock-constant-face prepend)
;;
;; Words inside `' tend to be symbol names.
- '("`\\(\\sw\\sw+\\)'" 1 font-lock-reference-face prepend)
+ '("`\\(\\sw\\sw+\\)'" 1 font-lock-constant-face prepend)
;;
- ;; CLisp `:' keywords as builtins.
+ ;; Constant values.
'("\\<:\\sw\\sw+\\>" 0 font-lock-builtin-face)
;;
;; ELisp and CLisp `&' keywords as types.
)))
"Gaudy level highlighting for Lisp modes.")
-
(defvar lisp-font-lock-keywords lisp-font-lock-keywords-1
"Default expressions to highlight in Lisp modes.")
+\f
+;; TeX.
-
-(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)
- '(7 (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.
-;(make-regexp '("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.")
-
-
-(defvar tex-font-lock-keywords
+;(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)
+; 2 font-lock-constant-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))
+; ;; 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-constant-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 tables.
+; ("\\\\\\(\\(bf\\)\\|em\\|it\\|sl\\)\\>\\(\\([^}&\\]\\|\\\\[^\\]\\)+\\)"
+; 3 (if (match-beginning 2) 'bold 'italic) keep))
+
+;; Rewritten with the help of Alexandra Bac <abac@welcome.disi.unige.it>.
+(defconst tex-font-lock-keywords-1
+ (eval-when-compile
+ (let* (;;
+ ;; Names of commands whose arg should be fontified as heading, etc.
+ (headings (regexp-opt '("title" "begin" "end") t))
+ ;; These commands have optional args.
+ (headings-opt (regexp-opt
+ '("chapter" "part"
+ "section" "subsection" "subsubsection"
+ "section*" "subsection*" "subsubsection*"
+ "paragraph" "subparagraph" "subsubparagraph"
+ "paragraph*" "subparagraph*" "subsubparagraph*"
+ "newcommand" "renewcommand" "newenvironment"
+ "newtheorem"
+ "newcommand*" "renewcommand*" "newenvironment*"
+ "newtheorem*")
+ t))
+ (variables (regexp-opt
+ '("newcounter" "newcounter*" "setcounter" "addtocounter"
+ "setlength" "addtolength" "settowidth")
+ t))
+ (includes (regexp-opt
+ '("input" "include" "includeonly" "bibliography"
+ "epsfig" "psfig" "epsf")
+ t))
+ (includes-opt (regexp-opt
+ '("nofiles" "usepackage"
+ "includegraphics" "includegraphics*")
+ t))
+ ;; Miscellany.
+ (slash "\\\\")
+ (opt "\\(\\[[^]]*\\]\\)?")
+ (arg "{\\([^}]+\\)")
+ (opt-depth (regexp-opt-depth opt))
+ (arg-depth (regexp-opt-depth arg))
+ )
+ (list
+ ;;
+ ;; Heading args.
+ (list (concat slash headings arg)
+ (+ (regexp-opt-depth headings) arg-depth)
+ 'font-lock-function-name-face)
+ (list (concat slash headings-opt opt arg)
+ (+ (regexp-opt-depth headings-opt) opt-depth arg-depth)
+ 'font-lock-function-name-face)
+ ;;
+ ;; Variable args.
+ (list (concat slash variables arg)
+ (+ (regexp-opt-depth variables) arg-depth)
+ 'font-lock-variable-name-face)
+ ;;
+ ;; Include args.
+ (list (concat slash includes arg)
+ (+ (regexp-opt-depth includes) arg-depth)
+ 'font-lock-builtin-face)
+ (list (concat slash includes-opt opt arg)
+ (+ (regexp-opt-depth includes-opt) opt-depth arg-depth)
+ 'font-lock-builtin-face)
+ ;;
+ ;; Definitions. I think.
+ '("^[ \t]*\\\\def\\\\\\(\\(\\w\\|@\\)+\\)"
+ 1 font-lock-function-name-face)
+ )))
+ "Subdued expressions to highlight in TeX modes.")
+
+(defconst tex-font-lock-keywords-2
+ (append tex-font-lock-keywords-1
+ (eval-when-compile
+ (let* (;;
+ ;; Names of commands whose arg should be fontified with fonts.
+ (bold (regexp-opt '("bf" "textbf" "textsc" "textup"
+ "boldsymbol" "pmb") t))
+ (italic (regexp-opt '("it" "textit" "textsl" "emph") t))
+ (type (regexp-opt '("texttt" "textmd" "textrm" "textsf") t))
+ ;;
+ ;; Names of commands whose arg should be fontified as a citation.
+ (citations (regexp-opt
+ '("label" "ref" "pageref" "vref" "eqref")
+ t))
+ (citations-opt (regexp-opt
+ '("cite" "caption" "index" "glossary"
+ "footnote" "footnotemark" "footnotetext")
+ t))
+ ;;
+ ;; Names of commands that should be fontified.
+ (specials (regexp-opt
+ '("\\"
+ "linebreak" "nolinebreak" "pagebreak" "nopagebreak"
+ "newline" "newpage" "clearpage" "cleardoublepage"
+ "displaybreak" "allowdisplaybreaks" "enlargethispage")
+ t))
+ (general "\\([a-zA-Z@]+\\**\\|[^ \t\n]\\)")
+ ;;
+ ;; Miscellany.
+ (slash "\\\\")
+ (opt "\\(\\[[^]]*\\]\\)?")
+ (arg "{\\([^}]+\\)")
+ (opt-depth (regexp-opt-depth opt))
+ (arg-depth (regexp-opt-depth arg))
+ )
+ (list
+ ;;
+ ;; Citation args.
+ (list (concat slash citations arg)
+ (+ (regexp-opt-depth citations) arg-depth)
+ 'font-lock-constant-face)
+ (list (concat slash citations-opt opt arg)
+ (+ (regexp-opt-depth citations-opt) opt-depth arg-depth)
+ 'font-lock-constant-face)
+ ;;
+ ;; Command names, special and general.
+ (cons (concat slash specials) 'font-lock-warning-face)
+ (concat slash general)
+ ;;
+ ;; Font environments. It seems a bit dubious to use `bold' etc. faces
+ ;; since we might not be able to display those fonts.
+ (list (concat slash bold arg)
+ (+ (regexp-opt-depth bold) arg-depth)
+ '(quote bold) 'keep)
+ (list (concat slash italic arg)
+ (+ (regexp-opt-depth italic) arg-depth)
+ '(quote italic) 'keep)
+ (list (concat slash type arg)
+ (+ (regexp-opt-depth type) arg-depth)
+ '(quote bold-italic) 'keep)
+ ;;
+ ;; Old-style bf/em/it/sl. Stop at `\\' and un-escaped `&', for tables.
+ (list (concat "\\\\\\(\\(bf\\)\\|em\\|it\\|sl\\)\\>"
+ "\\(\\([^}&\\]\\|\\\\[^\\]\\)+\\)")
+ 3 '(if (match-beginning 2) 'bold 'italic) 'keep)
+ ))))
+ "Gaudy expressions to highlight in TeX modes.")
+
+(defvar tex-font-lock-keywords tex-font-lock-keywords-1
"Default expressions to highlight in TeX modes.")
\f
;;; User choices.
;; These provide a means to fontify types not defined by the language. Those
;; types might be the user's own or they might be generally accepted and used.
-;; Generally excepted types are used to provide default variable values.
+;; Generally accepted types are used to provide default variable values.
-(defvar c-font-lock-extra-types '("FILE" "\\sw+_t")
+(define-widget 'font-lock-extra-types-widget 'radio
+ "Widget `:type' for members of the custom group `font-lock-extra-types'.
+Members should `:load' the package `font-lock' to use this widget."
+ :args '((const :tag "none" nil)
+ (repeat :tag "types" regexp)))
+
+(defcustom c-font-lock-extra-types '("FILE" "\\sw+_t")
"*List of extra types to fontify in C mode.
-Each list item should be a regexp without word-delimiters or parentheses.
+Each list item should be a regexp not containing word-delimiters.
For example, a value of (\"FILE\" \"\\\\sw+_t\") means the word FILE and words
-ending in _t are treated as type names.")
-
-(defvar c++-font-lock-extra-types nil
+ending in _t are treated as type names.
+
+The value of this variable is used when Font Lock mode is turned on."
+ :type 'font-lock-extra-types-widget
+ :group 'font-lock-extra-types)
+
+(defcustom c++-font-lock-extra-types
+ '("\\([iof]\\|str\\)+stream\\(buf\\)?" "ios"
+ "string" "rope"
+ "list" "slist"
+ "deque" "vector" "bit_vector"
+ "set" "multiset"
+ "map" "multimap"
+ "hash\\(_\\(m\\(ap\\|ulti\\(map\\|set\\)\\)\\|set\\)\\)?"
+ "stack" "queue" "priority_queue"
+ "iterator" "const_iterator" "reverse_iterator" "const_reverse_iterator")
"*List of extra types to fontify in C++ mode.
-Each list item should be a regexp without word-delimiters or parentheses.
-For example, a value of (\"String\") means the word String is treated as a type
-name.")
+Each list item should be a regexp not containing word-delimiters.
+For example, a value of (\"string\") means the word string is treated as a type
+name.
-(defvar objc-font-lock-extra-types '("Class" "BOOL" "IMP" "SEL")
+The value of this variable is used when Font Lock mode is turned on."
+ :type 'font-lock-extra-types-widget
+ :group 'font-lock-extra-types)
+
+(defcustom objc-font-lock-extra-types '("Class" "BOOL" "IMP" "SEL")
"*List of extra types to fontify in Objective-C mode.
-Each list item should be a regexp without word-delimiters or parentheses.
+Each list item should be a regexp not containing word-delimiters.
For example, a value of (\"Class\" \"BOOL\" \"IMP\" \"SEL\") means the words
-Class, BOOL, IMP and SEL are treated as type names.")
+Class, BOOL, IMP and SEL are treated as type names.
+
+The value of this variable is used when Font Lock mode is turned on."
+ :type 'font-lock-extra-types-widget
+ :group 'font-lock-extra-types)
-(defvar java-font-lock-extra-types '("[A-Z\300-\326\330-\337]\\sw+")
+(defcustom java-font-lock-extra-types '("[A-Z\300-\326\330-\337]\\sw+")
"*List of extra types to fontify in Java mode.
-Each list item should be a regexp without word-delimiters or parentheses.
+Each list item should be a regexp not containing word-delimiters.
For example, a value of (\"[A-Z\300-\326\330-\337]\\\\sw+\") means capitalised
-words (and words conforming to the Java id spec) are treated as type names.")
+words (and words conforming to the Java id spec) are treated as type names.
+
+The value of this variable is used when Font Lock mode is turned on."
+ :type 'font-lock-extra-types-widget
+ :group 'font-lock-extra-types)
\f
;;; C.
"Gaudy level highlighting for C mode.
See also `c-font-lock-extra-types'.")
-(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")
- `(mapconcat 'identity
- (cons
- (,@ (concat "auto\\|c\\(har\\|onst\\)\\|double\\|" ; 6 ()s deep.
- "e\\(num\\|xtern\\)\\|float\\|int\\|long\\|register\\|"
- "s\\(hort\\|igned\\|t\\(atic\\|ruct\\)\\)\\|typedef\\|"
- "un\\(ion\\|signed\\)\\|vo\\(id\\|latile\\)"))
- c-font-lock-extra-types)
- "\\|"))
- )
+(let* ((c-keywords
+ (eval-when-compile
+ (regexp-opt '("break" "continue" "do" "else" "for" "if" "return"
+ "switch" "while" "sizeof") t)))
+ (c-type-types
+ `(mapconcat 'identity
+ (cons
+ (,@ (eval-when-compile
+ (regexp-opt
+ '("auto" "extern" "register" "static" "typedef" "struct"
+ "union" "enum" "signed" "unsigned" "short" "long"
+ "int" "char" "float" "double" "void" "volatile" "const"))))
+ c-font-lock-extra-types)
+ "\\|"))
+ (c-type-depth `(regexp-opt-depth (,@ c-type-types)))
+ )
(setq c-font-lock-keywords-1
(list
;;
'("^#[ \t]*error[ \t]+\\(.+\\)" 1 font-lock-warning-face prepend)
;;
;; Fontify filenames in #include <...> preprocessor directives as strings.
- '("^#[ \t]*\\(import\\|include\\)[ \t]+\\(<[^>\"\n]*>?\\)"
+ '("^#[ \t]*\\(import\\|include\\)[ \t]*\\(<[^>\"\n]*>?\\)"
2 font-lock-string-face)
;;
;; Fontify function macro names.
;; Fontify symbol names in #elif or #if ... defined preprocessor directives.
'("^#[ \t]*\\(elif\\|if\\)\\>"
("\\<\\(defined\\)\\>[ \t]*(?\\(\\sw+\\)?" nil nil
- (1 font-lock-reference-face) (2 font-lock-variable-name-face nil t)))
+ (1 font-lock-builtin-face) (2 font-lock-variable-name-face nil t)))
;;
;; Fontify otherwise as symbol names, and the preprocessor directive names.
- '("^#[ \t]*\\(\\sw+\\)\\>[ \t]*\\(\\sw+\\)?"
- (1 font-lock-reference-face) (2 font-lock-variable-name-face nil t))
+ '("^#[ \t]*\\(\\sw+\\)\\>[ \t!]*\\(\\sw+\\)?"
+ (1 font-lock-builtin-face) (2 font-lock-variable-name-face nil t))
))
(setq c-font-lock-keywords-2
(cons (concat "\\<\\(" (,@ c-type-types) "\\)\\>") 'font-lock-type-face))
;;
;; Fontify all builtin keywords (except case, default and goto; see below).
- (concat "\\<\\(" c-keywords "\\)\\>")
+ (concat "\\<" c-keywords "\\>")
;;
;; Fontify case/goto keywords and targets, and case default/goto tags.
- '("\\<\\(case\\|goto\\)\\>[ \t]*\\(\\sw+\\)?"
- (1 font-lock-keyword-face) (2 font-lock-reference-face nil t))
+ '("\\<\\(case\\|goto\\)\\>[ \t]*\\(-?\\sw+\\)?"
+ (1 font-lock-keyword-face) (2 font-lock-constant-face nil t))
;; Anders Lindgren <andersl@csd.uu.se> points out that it is quicker to use
;; MATCH-ANCHORED to effectively anchor the regexp on the left.
+ ;; This must come after the one for keywords and targets.
'(":" ("^[ \t]*\\(\\sw+\\)[ \t]*:"
(beginning-of-line) (end-of-line)
- (1 font-lock-reference-face)))
+ (1 font-lock-constant-face)))
)))
(setq c-font-lock-keywords-3
(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 2)
- font-lock-function-name-face
- font-lock-variable-name-face)))))
+ (list 'font-lock-match-c-style-declaration-item-and-skip-to-next
+ ;; Start with point after all type specifiers.
+ (list 'goto-char (list 'or (list 'match-beginning
+ (+ (,@ c-type-depth) 2))
+ '(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 2)
+ font-lock-function-name-face
+ font-lock-variable-name-face)))))
;;
;; Fontify structures, or typedef names, plus their items.
'("\\(}\\)[ \t*]*\\sw"
;; If (match-beginning 5) is non-nil, that part of the item follows a `::'.
;; If (match-beginning 6) is non-nil, the item is followed by a `('.
(when (looking-at (eval-when-compile
- (concat "[ \t*&]*\\(\\sw+\\)"
- "\\(<\\(\\sw+\\)[ \t*&]*>\\)?"
- "\\(::\\*?\\(\\sw+\\)\\)?"
- "[ \t]*\\((\\)?")))
+ (concat
+ ;; Skip any leading whitespace.
+ "[ \t*&]*"
+ ;; This is `c++-type-spec' from below. (Hint hint!)
+ "\\(\\sw+\\)" ; The instance?
+ "\\([ \t]*<\\([^>\n]+\\)[ \t*&]*>\\)?" ; Or template?
+ "\\([ \t]*::[ \t*~]*\\(\\sw+\\)\\)*" ; Or member?
+ ;; Match any trailing parenthesis.
+ "[ \t]*\\((\\)?")))
(save-match-data
(condition-case nil
(save-restriction
(error t)))))
(let* ((c++-keywords
-; ("break" "continue" "do" "else" "for" "if" "return" "switch" "while"
-; "asm" "catch" "delete" "new" "operator" "sizeof" "this" "throw" "try"
-; ;; Eric Hopper <hopper@omnifarious.mn.org> says these are new.
-; "static_cast" "dynamic_cast" "const_cast" "reinterpret_cast")
- (concat "asm\\|break\\|c\\(atch\\|on\\(st_cast\\|tinue\\)\\)\\|"
- "d\\(elete\\|o\\|ynamic_cast\\)\\|else\\|for\\|if\\|new\\|"
- "operator\\|re\\(interpret_cast\\|turn\\)\\|"
- "s\\(izeof\\|tatic_cast\\|"
- "witch\\)\\|t\\(h\\(is\\|row\\)\\|ry\\)\\|while"))
+ (eval-when-compile
+ (regexp-opt
+ '("break" "continue" "do" "else" "for" "if" "return" "switch"
+ "while" "asm" "catch" "delete" "new" "sizeof" "this" "throw" "try"
+ ;; Eric Hopper <hopper@omnifarious.mn.org> says these are new.
+ "static_cast" "dynamic_cast" "const_cast" "reinterpret_cast") t)))
(c++-operators
- (mapconcat 'identity
- (mapcar 'regexp-quote
- ;; Taken from Stroustrup, minus keywords otherwise fontified.
- (sort '("+" "-" "*" "/" "%" "^" "&" "|" "~" "!" "=" "<" ">"
- "+=" "-=" "*=" "/=" "%=" "^=" "&=" "|=" "<<" ">>"
- ">>=" "<<=" "==" "!=" "<=" ">=" "&&" "||" "++" "--"
- "->*" "," "->" "[]" "()")
- #'(lambda (a b) (> (length a) (length b)))))
- "\\|"))
+ (eval-when-compile
+ (regexp-opt
+ ;; Taken from Stroustrup, minus keywords otherwise fontified.
+ '("+" "-" "*" "/" "%" "^" "&" "|" "~" "!" "=" "<" ">" "+=" "-="
+ "*=" "/=" "%=" "^=" "&=" "|=" "<<" ">>" ">>=" "<<=" "==" "!="
+ "<=" ">=" "&&" "||" "++" "--" "->*" "," "->" "[]" "()"))))
(c++-type-types
-; ("auto" "extern" "register" "static" "typedef" "struct" "union" "enum"
-; "signed" "unsigned" "short" "long" "int" "char" "float" "double"
-; "void" "volatile" "const" "inline" "friend" "bool"
-; "virtual" "complex" "template"
-; ;; Eric Hopper <hopper@omnifarious.mn.org> says these are new.
-; "namespace" "using")
`(mapconcat 'identity
(cons
- (,@ (concat "auto\\|bool\\|c\\(har\\|o\\(mplex\\|nst\\)\\)\\|"
- "double\\|e\\(num\\|xtern\\)\\|f\\(loat\\|riend\\)\\|"
- "in\\(line\\|t\\)\\|long\\|namespace\\|register\\|"
- "s\\(hort\\|igned\\|t\\(atic\\|ruct\\)\\)\\|"
- "t\\(emplate\\|ypedef\\)\\|"
- "u\\(n\\(ion\\|signed\\)\\|sing\\)\\|"
- "v\\(irtual\\|o\\(id\\|latile\\)\\)")) ; 12 ()s deep.
+ (,@ (eval-when-compile
+ (regexp-opt
+ '("extern" "auto" "register" "static" "typedef" "struct"
+ "union" "enum" "signed" "unsigned" "short" "long"
+ "int" "char" "float" "double" "void" "volatile" "const"
+ "inline" "friend" "bool" "virtual" "complex" "template"
+ "namespace" "using"
+ ;; Mark Mitchell <mmitchell@usa.net> says these are new.
+ "explicit" "mutable"
+ ;; Branko Cibej <branko.cibej@hermes.si> suggests this.
+ "export"))))
c++-font-lock-extra-types)
"\\|"))
- (c++-type-suffix "\\(<\\(\\sw+\\)[ \t*&]*>\\)?\\(::\\*?\\(\\sw+\\)\\)?")
+ ;;
+ ;; A brave attempt to match templates following a type and/or match
+ ;; class membership. See and sync the above function
+ ;; `font-lock-match-c++-style-declaration-item-and-skip-to-next'.
+ (c++-type-suffix (concat "\\([ \t]*<\\([^>\n]+\\)[ \t*&]*>\\)?"
+ "\\([ \t]*::[ \t*~]*\\(\\sw+\\)\\)*"))
+ ;; If the string is a type, it may be followed by the cruft above.
(c++-type-spec (concat "\\(\\sw+\\)\\>" c++-type-suffix))
- )
+ ;;
+ ;; Parenthesis depth of user-defined types not forgetting their cruft.
+ (c++-type-depth `(regexp-opt-depth
+ (concat (,@ c++-type-types) (,@ c++-type-suffix))))
+ )
(setq c++-font-lock-keywords-1
(append
;;
(list
;;
;; Class names etc.
- (list (concat "\\<\\(class\\|public\\|private\\|protected\\)\\>[ \t]*"
+ (list (concat "\\<\\(class\\|public\\|private\\|protected\\|typename\\)\\>"
+ "[ \t]*"
"\\(" c++-type-spec "\\)?")
'(1 font-lock-type-face)
'(3 (if (match-beginning 6)
'(2 font-lock-builtin-face nil t))
;;
;; Fontify case/goto keywords and targets, and case default/goto tags.
- '("\\<\\(case\\|goto\\)\\>[ \t]*\\(\\sw+\\)?"
- (1 font-lock-keyword-face) (2 font-lock-reference-face nil t))
+ '("\\<\\(case\\|goto\\)\\>[ \t]*\\(-?\\sw+\\)?"
+ (1 font-lock-keyword-face) (2 font-lock-constant-face nil t))
+ ;; This must come after the one for keywords and targets.
'(":" ("^[ \t]*\\(\\sw+\\)[ \t]*:\\($\\|[^:]\\)"
(beginning-of-line) (end-of-line)
- (1 font-lock-reference-face)))
+ (1 font-lock-constant-face)))
;;
;; Fontify other builtin keywords.
- (cons (concat "\\<\\(" c++-keywords "\\)\\>") 'font-lock-keyword-face)
+ (concat "\\<" c++-keywords "\\>")
;;
;; Eric Hopper <hopper@omnifarious.mn.org> says `true' and `false' are new.
- '("\\<\\(false\\|true\\)\\>" . font-lock-reference-face)
+ '("\\<\\(false\\|true\\)\\>" . font-lock-constant-face)
)))
(setq c++-font-lock-keywords-3
(list (concat "\\<\\(" (,@ c++-type-types) "\\)\\>" (,@ c++-type-suffix)
"\\([ \t*&]+" (,@ c++-type-spec) "\\)*")
;; 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 18) (match-end 1)))
- ;; Finish with point after first type specifier.
- (goto-char (match-end 1))
- ;; Fontify as a variable or function name.
- (1 (cond ((or (match-beginning 2) (match-beginning 4))
- font-lock-type-face)
- ((match-beginning 6) font-lock-function-name-face)
- (t font-lock-variable-name-face)))
- (3 font-lock-function-name-face nil t)
- (5 (if (match-beginning 6)
- font-lock-function-name-face
- font-lock-variable-name-face) nil t))))
+ (list 'font-lock-match-c++-style-declaration-item-and-skip-to-next
+ ;; Start with point after all type specifiers.
+ (list 'goto-char (list 'or (list 'match-beginning
+ (+ (,@ c++-type-depth) 2))
+ '(match-end 1)))
+ ;; Finish with point after first type specifier.
+ '(goto-char (match-end 1))
+ ;; Fontify as a variable or function name.
+ '(1 (cond ((or (match-beginning 2) (match-beginning 4))
+ font-lock-type-face)
+ ((match-beginning 6) font-lock-function-name-face)
+ (t font-lock-variable-name-face)))
+ '(3 font-lock-function-name-face nil t)
+ '(5 (if (match-beginning 6)
+ font-lock-function-name-face
+ font-lock-variable-name-face) nil t))))
;;
;; Fontify structures, or typedef names, plus their items.
'("\\(}\\)[ \t*]*\\sw"
;; Regexps written with help from Stephen Peters <speters@us.oracle.com> and
;; Jacques Duthen Prestataire <duthen@cegelec-red.fr>.
-(let ((objc-keywords
-; (make-regexp
-; '("break" "continue" "do" "else" "for" "if" "return" "switch" "while"
-; "sizeof" "self" "super"))
- (concat "break\\|continue\\|do\\|else\\|for\\|if\\|return\\|"
- "s\\(elf\\|izeof\\|uper\\|witch\\)\\|while"))
- (objc-type-types
- `(mapconcat 'identity
- (cons
-; '("auto" "extern" "register" "static" "typedef" "struct" "union"
-; "enum" "signed" "unsigned" "short" "long" "int" "char"
-; "float" "double" "void" "volatile" "const"
-; "id" "oneway" "in" "out" "inout" "bycopy" "byref")
- (,@ (concat "auto\\|by\\(copy\\|ref\\)\\|c\\(har\\|onst\\)\\|"
- "double\\|e\\(num\\|xtern\\)\\|float\\|"
- "i\\([dn]\\|n\\(out\\|t\\)\\)\\|long\\|"
- "o\\(neway\\|ut\\)\\|register\\|s\\(hort\\|igned\\|"
- "t\\(atic\\|ruct\\)\\)\\|typedef\\|"
- "un\\(ion\\|signed\\)\\|vo\\(id\\|latile\\)"))
- objc-font-lock-extra-types)
- "\\|"))
- )
+(let* ((objc-keywords
+ (eval-when-compile
+ (regexp-opt '("break" "continue" "do" "else" "for" "if" "return"
+ "switch" "while" "sizeof" "self" "super") t)))
+ (objc-type-types
+ `(mapconcat 'identity
+ (cons
+ (,@ (eval-when-compile
+ (regexp-opt
+ '("auto" "extern" "register" "static" "typedef" "struct"
+ "union" "enum" "signed" "unsigned" "short" "long"
+ "int" "char" "float" "double" "void" "volatile" "const"
+ "id" "oneway" "in" "out" "inout" "bycopy" "byref"))))
+ objc-font-lock-extra-types)
+ "\\|"))
+ (objc-type-depth `(regexp-opt-depth (,@ objc-type-types)))
+ )
(setq objc-font-lock-keywords-1
(append
;;
'font-lock-type-face))
;;
;; Fontify all builtin keywords (except case, default and goto; see below).
- (concat "\\<\\(" objc-keywords "\\)\\>")
+ (concat "\\<" objc-keywords "\\>")
;;
;; Fontify case/goto keywords and targets, and case default/goto tags.
- '("\\<\\(case\\|goto\\)\\>[ \t]*\\(\\sw+\\)?"
- (1 font-lock-keyword-face) (2 font-lock-reference-face nil t))
+ '("\\<\\(case\\|goto\\)\\>[ \t]*\\(-?\\sw+\\)?"
+ (1 font-lock-keyword-face) (2 font-lock-constant-face nil t))
;; Fontify tags iff sole statement on line, otherwise we detect selectors.
+ ;; This must come after the one for keywords and targets.
'(":" ("^[ \t]*\\(\\sw+\\)[ \t]*:[ \t]*$"
(beginning-of-line) (end-of-line)
- (1 font-lock-reference-face)))
+ (1 font-lock-constant-face)))
;;
;; Fontify null object pointers.
- '("\\<\\(Nil\\|nil\\)\\>" 1 font-lock-reference-face)
+ '("\\<[Nn]il\\>" . font-lock-constant-face)
)))
(setq objc-font-lock-keywords-3
(list (concat "\\<\\(" (,@ objc-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 2) (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 2)
- font-lock-function-name-face
- font-lock-variable-name-face)))))
+ (list 'font-lock-match-c-style-declaration-item-and-skip-to-next
+ ;; Start with point after all type specifiers.
+ (list 'goto-char (list 'or (list 'match-beginning
+ (+ (,@ objc-type-depth) 2))
+ '(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 2)
+ font-lock-function-name-face
+ font-lock-variable-name-face)))))
;;
;; Fontify structures, or typedef names, plus their items.
'("\\(}\\)[ \t*]*\\sw"
;; Regexps written with help from Fred White <fwhite@bbn.com> and
;; Anders Lindgren <andersl@csd.uu.se>.
-(let ((java-keywords
- (concat "\\<\\("
-; (make-regexp
-; '("catch" "do" "else" "super" "this" "finally" "for" "if"
-;; ;; Anders Lindgren <andersl@csd.uu.se> says these have gone.
-;; "cast" "byvalue" "future" "generic" "operator" "var"
-;; "inner" "outer" "rest"
-; "interface" "return" "switch" "throw" "try" "while")
- "catch\\|do\\|else\\|f\\(inally\\|or\\)\\|"
- "i\\(f\\|nterface\\)\\|return\\|s\\(uper\\|witch\\)\\|"
- "t\\(h\\(is\\|row\\)\\|ry\\)\\|while"
- "\\)\\>"))
- ;;
- ;; These are immediately followed by an object name.
- (java-minor-types
- (mapconcat 'identity
- '("boolean" "char" "byte" "short" "int" "long" "float" "double" "void")
- "\\|"))
- ;;
- ;; These are eventually followed by an object name.
- (java-major-types
-; (make-regexp
-; '("abstract" "const" "final" "synchronized" "transient" "static"
-;; ;; Anders Lindgren <andersl@csd.uu.se> says this has gone.
-;; "threadsafe"
-; "volatile" "public" "private" "protected" "native")
- (concat "abstract\\|const\\|final\\|native\\|"
- "p\\(r\\(ivate\\|otected\\)\\|ublic\\)\\|"
- "s\\(tatic\\|ynchronized\\)\\|transient\\|volatile"))
- ;;
- ;; Random types immediately followed by an object name.
- (java-other-types
- '(mapconcat 'identity (cons "\\sw+\\.\\sw+" java-font-lock-extra-types)
- "\\|"))
- )
+(let* ((java-keywords
+ (eval-when-compile
+ (regexp-opt
+ '("catch" "do" "else" "super" "this" "finally" "for" "if"
+ ;; Anders Lindgren <andersl@csd.uu.se> says these have gone.
+ ;; "cast" "byvalue" "future" "generic" "operator" "var"
+ ;; "inner" "outer" "rest"
+ "interface" "return" "switch" "throw" "try" "while") t)))
+ ;;
+ ;; These are immediately followed by an object name.
+ (java-minor-types
+ (eval-when-compile
+ (regexp-opt '("boolean" "char" "byte" "short" "int" "long"
+ "float" "double" "void"))))
+ ;;
+ ;; These are eventually followed by an object name.
+ (java-major-types
+ (eval-when-compile
+ (regexp-opt
+ '("abstract" "const" "final" "synchronized" "transient" "static"
+ ;; Anders Lindgren <andersl@csd.uu.se> says this has gone.
+ ;; "threadsafe"
+ "volatile" "public" "private" "protected" "native"))))
+ ;;
+ ;; Random types immediately followed by an object name.
+ (java-other-types
+ '(mapconcat 'identity (cons "\\sw+\\.\\sw+" java-font-lock-extra-types)
+ "\\|"))
+ (java-other-depth `(regexp-opt-depth (,@ java-other-types)))
+ )
(setq java-font-lock-keywords-1
(list
;;
;;
;; Fontify package names in import directives.
'("\\<\\(import\\|package\\)\\>[ \t]*\\(\\sw+\\)?"
- (1 font-lock-keyword-face) (2 font-lock-reference-face nil t))
+ (1 font-lock-keyword-face) (2 font-lock-constant-face nil t))
))
(setq java-font-lock-keywords-2
'font-lock-type-face)
;;
;; Fontify all builtin keywords (except below).
- (concat "\\<\\(" java-keywords "\\)\\>")
+ (concat "\\<" java-keywords "\\>")
;;
;; Fontify keywords and targets, and case default/goto tags.
- (list "\\<\\(break\\|case\\|continue\\|goto\\)\\>[ \t]*\\(\\sw+\\)?"
- '(1 font-lock-keyword-face) '(2 font-lock-reference-face nil t))
+ (list "\\<\\(break\\|case\\|continue\\|goto\\)\\>[ \t]*\\(-?\\sw+\\)?"
+ '(1 font-lock-keyword-face) '(2 font-lock-constant-face nil t))
+ ;; This must come after the one for keywords and targets.
'(":" ("^[ \t]*\\(\\sw+\\)[ \t]*:"
(beginning-of-line) (end-of-line)
- (1 font-lock-reference-face)))
+ (1 font-lock-constant-face)))
;;
;; Fontify keywords and types; the first can be followed by a type list.
(list (concat "\\<\\("
(1 font-lock-type-face)))
;;
;; Fontify all constants.
- '("\\<\\(false\\|null\\|true\\)\\>" . font-lock-reference-face)
+ '("\\<\\(false\\|null\\|true\\)\\>" . font-lock-constant-face)
;;
;; Javadoc tags within comments.
'("@\\(author\\|exception\\|return\\|see\\|version\\)\\>"
- (1 font-lock-reference-face prepend))
+ (1 font-lock-constant-face prepend))
'("@\\(param\\)\\>[ \t]*\\(\\sw+\\)?"
- (1 font-lock-reference-face prepend)
+ (1 font-lock-constant-face prepend)
(2 font-lock-variable-name-face prepend t))
)))
"\\([ \t]*\\[[ \t]*\\]\\)*"
"\\([ \t]*\\sw\\)")
;; Fontify each declaration item.
- '(font-lock-match-c-style-declaration-item-and-skip-to-next
- ;; Start and finish with point after the type specifier.
- (goto-char (match-beginning 3)) (goto-char (match-beginning 3))
- ;; Fontify as a variable or function name.
- (1 (if (match-beginning 2)
- font-lock-function-name-face
- font-lock-variable-name-face)))))
+ (list 'font-lock-match-c-style-declaration-item-and-skip-to-next
+ ;; Start and finish with point after the type specifier.
+ (list 'goto-char (list 'match-beginning
+ (+ (,@ java-other-depth) 3)))
+ (list 'goto-char (list 'match-beginning
+ (+ (,@ java-other-depth) 3)))
+ ;; Fontify as a variable or function name.
+ '(1 (if (match-beginning 2)
+ font-lock-function-name-face
+ font-lock-variable-name-face)))))
;;
;; Fontify those that are immediately followed by an item or items.
(list (concat "\\<\\(" java-minor-types "\\)\\>"
;; 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 2) (match-end 1)))
+ (goto-char (or (match-beginning 5) (match-end 1)))
;; Finish with point after first type specifier.
(goto-char (match-end 1))
;; Fontify as a variable or function name.
;; Install ourselves:
(unless (assq 'font-lock-mode minor-mode-alist)
- (push '(font-lock-mode " Font") minor-mode-alist))
+ (push '(font-lock-mode nil) minor-mode-alist))
;; Provide ourselves: