;;; font-lock.el --- Electric font lock mode
-;; Copyright (C) 1992, 93, 94, 95, 96, 97, 98, 1999
+;; Copyright (C) 1992, 93, 94, 95, 96, 97, 98, 1999, 2000
;; Free Software Foundation, Inc.
-;; Author: jwz, then rms, then sm <simon@gnu.org>
+;; Author: jwz, then rms, then sm
;; Maintainer: FSF
;; Keywords: languages, faces
;;
;; 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'.
+;; `regexp-opt'.
;;; Adding patterns for modes that already support Font Lock:
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].
+MATCHER regexps can be generated via the function `regexp-opt'. MATCH is
+the subexpression of MATCHER to be highlighted. 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 can
be overwritten. If `keep', only parts not already fontified are highlighted.
(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'.
+where SYNTAX can be of the form (SYNTAX-CODE . MATCHING-CHAR) (see
+also `string-to-syntax'), 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:
(when (and (not modified) (buffer-modified-p))
(set-buffer-modified-p nil)))))
(put 'save-buffer-state 'lisp-indent-function 1)
+ (def-edebug-spec save-buffer-state let)
;;
;; Shut up the byte compiler.
(defvar global-font-lock-mode) ; Now a defcustom.
(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)))))
+ (mapc (function (lambda (buffer)
+ (with-current-buffer buffer
+ (when font-lock-mode
+ (font-lock-mode)))))
(buffer-list))))
(when message
(message "Global Font Lock mode %s." (if on-p "enabled" "disabled")))
(const :tag "lazy lock" lazy-lock-mode)
(const :tag "JIT lock" jit-lock-mode)))
))
+ :version "21.1"
:group 'font-lock)
(defvar fast-lock-mode nil)
(defun font-lock-after-fontify-buffer ()
(cond (fast-lock-mode
(fast-lock-after-fontify-buffer))
- (jit-lock-mode
- (jit-lock-after-fontify-buffer))
+ ;; Useless now that jit-lock intercepts font-lock-fontify-buffer. -sm
+ ;; (jit-lock-mode
+ ;; (jit-lock-after-fontify-buffer))
(lazy-lock-mode
(lazy-lock-after-fontify-buffer))))
(defun font-lock-after-unfontify-buffer ()
(cond (fast-lock-mode
(fast-lock-after-unfontify-buffer))
- (jit-lock-mode
- (jit-lock-after-unfontify-buffer))
+ ;; Useless as well. It's only called when:
+ ;; - turning off font-lock: it does not matter if we leave spurious
+ ;; `fontified' text props around since jit-lock-mode is also off.
+ ;; - font-lock-default-fontify-buffer fails: this is not run
+ ;; any more anyway. -sm
+ ;;
+ ;; (jit-lock-mode
+ ;; (jit-lock-after-unfontify-buffer))
(lazy-lock-mode
(lazy-lock-after-unfontify-buffer))))
(start (match-beginning match)) (end (match-end match))
(value (nth 1 highlight))
(override (nth 2 highlight)))
- (unless (numberp (car-safe value))
- (setq value (eval value)))
+ (cond ((stringp value)
+ (setq value (string-to-syntax value)))
+ ((not (numberp (car-safe value)))
+ (setq value (eval value))))
(cond ((not start)
;; No match but we might not signal an error.
(or (nth 3 highlight)
(when (and font-lock-multiline
(funcall (if (eq font-lock-multiline t) '>= '>)
pre-match-value
- (save-excursion (forward-line 1) (point))))
+ (line-beginning-position 2)))
;; this is a multiline anchored match
(setq font-lock-multiline t)
(put-text-property (point) limit 'font-lock-multiline t)))
(save-match-data
;; Find an occurrence of `matcher' before `limit'.
- (while (if (stringp matcher)
- (re-search-forward matcher limit t)
- (funcall matcher limit))
+ (while (and (< (point) limit)
+ (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
;; Function declarations.
"\\(advice\\|alias\\|generic\\|macro\\*?\\|method\\|"
"setf\\|subst\\*?\\|un\\*?\\|"
- "ine-\\(condition\\|derived-mode\\|function\\|"
+ "ine-\\(condition\\|\\(?:derived\\|minor\\)-mode\\|"
"method-combination\\|setf-expander\\|skeleton\\|widget\\|"
- "\\(compiler\\|modify\\|symbol\\)-macro\\)\\)\\|"
+ "function\\|\\(compiler\\|modify\\|symbol\\)-macro\\)\\)\\|"
;; Variable declarations.
"\\(const\\(ant\\)?\\|custom\\|face\\|parameter\\|var\\)\\|"
;; Structure declarations.
\f
;; Install ourselves:
+;; Useful for the popup-menu for mouse-3 on the modeline.
(unless (assq 'font-lock-mode minor-mode-alist)
(push '(font-lock-mode nil) minor-mode-alist))