;;; font-lock.el --- Electric font lock mode
-;; Copyright (C) 1992-2011 Free Software Foundation, Inc.
+;; Copyright (C) 1992-2012 Free Software Foundation, Inc.
;; Author: Jamie Zawinski
;; Richard Stallman
;;
;; 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
+;; necessary because Emacs's 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?)
;;; Code:
(require 'syntax)
-(eval-when-compile (require 'cl))
+(eval-when-compile (require 'cl-lib))
;; Define core `font-lock' group.
(defgroup font-lock '((jit-lock custom-group))
;; User variables.
(defcustom font-lock-maximum-size 256000
- "Maximum size of a buffer for buffer fontification.
-Only buffers less than this can be fontified when Font Lock mode is turned on.
+ "Maximum buffer size for unsupported buffer fontification.
+When `font-lock-support-mode' is nil, only buffers smaller than
+this are fontified. This variable has no effect if a Font Lock
+support mode (usually `jit-lock-mode') is enabled.
+
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:
(const :tag "none" nil)
(integer :tag "size")))))
:group 'font-lock)
+(make-obsolete-variable 'font-lock-maximum-size nil "24.1")
(defcustom font-lock-maximum-decoration t
"Maximum decoration level for fontification.
;; 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.
+;; rather than sometimes evalling FACENAME and sometimes not. sm.
;; Note that in new code, in the vast majority of cases there is no
;; need to create variables that specify face names. Simply using
`font-lock-remove-keywords'.")
(defvar font-lock-keywords-only nil
- "*Non-nil means Font Lock should not fontify comments or strings.
+ "Non-nil means Font Lock should not fontify comments or strings.
This is normally set via `font-lock-defaults'.")
(defvar font-lock-keywords-case-fold-search nil
- "*Non-nil means the patterns in `font-lock-keywords' are case-insensitive.
+ "Non-nil means the patterns in `font-lock-keywords' are case-insensitive.
This is set via the function `font-lock-set-defaults', based on
the CASE-FOLD argument of `font-lock-defaults'.")
(make-variable-buffer-local 'font-lock-keywords-case-fold-search)
This is normally set via `font-lock-defaults'.")
(defvar font-lock-beginning-of-syntax-function nil
- "*Non-nil means use this function to move back outside all constructs.
+ "Non-nil means use this function to move back outside all constructs.
When called with no args it should move point backward to a place which
is not in a string or comment and not within any bracket-pairs (or else,
a place such that any bracket-pairs outside it can be ignored for Emacs
'syntax-begin-function "23.3" 'set)
(defvar font-lock-mark-block-function nil
- "*Non-nil means use this function to mark a block of text.
+ "Non-nil means use this function to mark a block of text.
When called with no args it should leave point at the beginning of any
enclosing textual block and mark at the end.
This is normally set via `font-lock-defaults'.")
;; Font Lock mode.
(eval-when-compile
- ;;
- ;; We don't do this at the top-level as we only use non-autoloaded macros.
- (require 'cl)
;;
;; Borrowed from lazy-lock.el.
;; We use this to preserve or protect things when modifying text properties.
;; Shut up the byte compiler.
(defvar font-lock-face-attributes)) ; Obsolete but respected if set.
-(defun font-lock-mode-internal (arg)
- ;; Turn on Font Lock mode.
- (when arg
- (add-hook 'after-change-functions 'font-lock-after-change-function t t)
- (font-lock-set-defaults)
- (font-lock-turn-on-thing-lock)
- ;; Fontify the buffer if we have to.
+(defun font-lock-specified-p (mode)
+ "Return non-nil if the current buffer is ready for fontification.
+The MODE argument, if non-nil, means Font Lock mode is about to
+be enabled."
+ (or font-lock-defaults
+ (and (boundp 'font-lock-keywords)
+ font-lock-keywords)
+ (and mode
+ (boundp 'font-lock-set-defaults)
+ font-lock-set-defaults
+ font-lock-major-mode
+ (not (eq font-lock-major-mode major-mode)))))
+
+(defun font-lock-initial-fontify ()
+ ;; The first fontification after turning the mode on. This must
+ ;; only be called after the mode hooks have been run.
+ (when (and font-lock-mode
+ (font-lock-specified-p t))
(let ((max-size (font-lock-value-in-major-mode font-lock-maximum-size)))
(cond (font-lock-fontified
nil)
(font-lock-fontify-buffer))
(font-lock-verbose
(message "Fontifying %s...buffer size greater than font-lock-maximum-size"
- (buffer-name))))))
+ (buffer-name)))))))
+
+(defun font-lock-mode-internal (arg)
+ ;; Turn on Font Lock mode.
+ (when arg
+ (add-hook 'after-change-functions 'font-lock-after-change-function t t)
+ (font-lock-set-defaults)
+ (font-lock-turn-on-thing-lock))
;; Turn off Font Lock mode.
(unless font-lock-mode
(remove-hook 'after-change-functions 'font-lock-after-change-function t)
(declare-function lazy-lock-mode "lazy-lock")
(defun font-lock-turn-on-thing-lock ()
- (case (font-lock-value-in-major-mode font-lock-support-mode)
- (fast-lock-mode (fast-lock-mode t))
- (lazy-lock-mode (lazy-lock-mode t))
- (jit-lock-mode
+ (pcase (font-lock-value-in-major-mode font-lock-support-mode)
+ (`fast-lock-mode (fast-lock-mode t))
+ (`lazy-lock-mode (lazy-lock-mode t))
+ (`jit-lock-mode
;; Prepare for jit-lock
(remove-hook 'after-change-functions
'font-lock-after-change-function t)
;; 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,
+;; default syntactic 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.,
(funcall font-lock-unfontify-buffer-function))
(defun font-lock-fontify-region (beg end &optional loudly)
+ "Fontify the text between BEG and END.
+If LOUDLY is non-nil, print status messages while fontifying.
+This works by calling `font-lock-fontify-region-function'."
(font-lock-set-defaults)
(funcall font-lock-fontify-region-function beg end loudly))
(defun font-lock-unfontify-region (beg end)
+ "Unfontify the text between BEG and END.
+This works by calling `font-lock-unfontify-region-function'."
(save-buffer-state
(funcall font-lock-unfontify-region-function beg end)))
(defun font-lock-default-fontify-buffer ()
+ "Fontify the whole buffer using `font-lock-fontify-region-function'."
(let ((verbose (if (numberp font-lock-verbose)
(> (buffer-size) font-lock-verbose)
font-lock-verbose)))
(quit (font-lock-unfontify-buffer)))))))
(defun font-lock-default-unfontify-buffer ()
+ "Unfontify the whole buffer using `font-lock-unfontify-region-function'."
;; Make sure we unfontify etc. in the whole buffer.
(save-restriction
(widen)
changed))
(defun font-lock-default-fontify-region (beg end loudly)
+ "Fontify the text between BEG and END.
+If LOUDLY is non-nil, print status messages while fontifying.
+This function is the default `font-lock-fontify-region-function'."
(save-buffer-state
;; Use the fontification syntax table, if any.
(with-syntax-table (or font-lock-syntax-table (syntax-table))
what properties to clear before refontifying a region.")
(defun font-lock-default-unfontify-region (beg end)
+ "Unfontify the text between BEG and END.
+This function is the default `font-lock-unfontify-region-function'."
(remove-list-of-text-properties
beg end (append
font-lock-extra-managed-props
;; Fontify each item in `font-lock-keywords' from `start' to `end'.
(while keywords
(if loudly (message "Fontifying %s... (regexps..%s)" bufname
- (make-string (incf count) ?.)))
+ (make-string (cl-incf count) ?.)))
;;
;; Find an occurrence of `matcher' from `start' to `end'.
(setq keyword (car keywords) matcher (car keyword))
keyword)))
(defun font-lock-eval-keywords (keywords)
- "Evalulate KEYWORDS if a function (funcall) or variable (eval) name."
+ "Evaluate KEYWORDS if a function (funcall) or variable (eval) name."
(if (listp keywords)
keywords
(font-lock-eval-keywords (if (fboundp keywords)
;; `custom-declare-face'.
(defface font-lock-comment-face
'((((class grayscale) (background light))
- (:foreground "DimGray" :weight bold :slant italic))
+ :foreground "DimGray" :weight bold :slant italic)
(((class grayscale) (background dark))
- (:foreground "LightGray" :weight bold :slant italic))
+ :foreground "LightGray" :weight bold :slant italic)
(((class color) (min-colors 88) (background light))
- (:foreground "Firebrick"))
+ :foreground "Firebrick")
(((class color) (min-colors 88) (background dark))
- (:foreground "chocolate1"))
+ :foreground "chocolate1")
(((class color) (min-colors 16) (background light))
- (:foreground "red"))
+ :foreground "red")
(((class color) (min-colors 16) (background dark))
- (:foreground "red1"))
+ :foreground "red1")
(((class color) (min-colors 8) (background light))
- (:foreground "red"))
+ :foreground "red")
(((class color) (min-colors 8) (background dark))
- (:foreground "yellow"))
- (t (:weight bold :slant italic)))
+ :foreground "yellow")
+ (t :weight bold :slant italic))
"Font Lock mode face used to highlight comments."
:group 'font-lock-faces)
:group 'font-lock-faces)
(defface font-lock-string-face
- '((((class grayscale) (background light)) (:foreground "DimGray" :slant italic))
- (((class grayscale) (background dark)) (:foreground "LightGray" :slant italic))
- (((class color) (min-colors 88) (background light)) (:foreground "VioletRed4"))
- (((class color) (min-colors 88) (background dark)) (:foreground "LightSalmon"))
- (((class color) (min-colors 16) (background light)) (:foreground "RosyBrown"))
- (((class color) (min-colors 16) (background dark)) (:foreground "LightSalmon"))
- (((class color) (min-colors 8)) (:foreground "green"))
- (t (:slant italic)))
+ '((((class grayscale) (background light)) :foreground "DimGray" :slant italic)
+ (((class grayscale) (background dark)) :foreground "LightGray" :slant italic)
+ (((class color) (min-colors 88) (background light)) :foreground "VioletRed4")
+ (((class color) (min-colors 88) (background dark)) :foreground "LightSalmon")
+ (((class color) (min-colors 16) (background light)) :foreground "RosyBrown")
+ (((class color) (min-colors 16) (background dark)) :foreground "LightSalmon")
+ (((class color) (min-colors 8)) :foreground "green")
+ (t :slant italic))
"Font Lock mode face used to highlight strings."
:group 'font-lock-faces)
:group 'font-lock-faces)
(defface font-lock-keyword-face
- '((((class grayscale) (background light)) (:foreground "LightGray" :weight bold))
- (((class grayscale) (background dark)) (:foreground "DimGray" :weight bold))
- (((class color) (min-colors 88) (background light)) (:foreground "Purple"))
- (((class color) (min-colors 88) (background dark)) (:foreground "Cyan1"))
- (((class color) (min-colors 16) (background light)) (:foreground "Purple"))
- (((class color) (min-colors 16) (background dark)) (:foreground "Cyan"))
- (((class color) (min-colors 8)) (:foreground "cyan" :weight bold))
- (t (:weight bold)))
+ '((((class grayscale) (background light)) :foreground "LightGray" :weight bold)
+ (((class grayscale) (background dark)) :foreground "DimGray" :weight bold)
+ (((class color) (min-colors 88) (background light)) :foreground "Purple")
+ (((class color) (min-colors 88) (background dark)) :foreground "Cyan1")
+ (((class color) (min-colors 16) (background light)) :foreground "Purple")
+ (((class color) (min-colors 16) (background dark)) :foreground "Cyan")
+ (((class color) (min-colors 8)) :foreground "cyan" :weight bold)
+ (t :weight bold))
"Font Lock mode face used to highlight keywords."
:group 'font-lock-faces)
(defface font-lock-builtin-face
- '((((class grayscale) (background light)) (:foreground "LightGray" :weight bold))
- (((class grayscale) (background dark)) (:foreground "DimGray" :weight bold))
- (((class color) (min-colors 88) (background light)) (:foreground "dark slate blue"))
- (((class color) (min-colors 88) (background dark)) (:foreground "LightSteelBlue"))
- (((class color) (min-colors 16) (background light)) (:foreground "Orchid"))
- (((class color) (min-colors 16) (background dark)) (:foreground "LightSteelBlue"))
- (((class color) (min-colors 8)) (:foreground "blue" :weight bold))
- (t (:weight bold)))
+ '((((class grayscale) (background light)) :foreground "LightGray" :weight bold)
+ (((class grayscale) (background dark)) :foreground "DimGray" :weight bold)
+ (((class color) (min-colors 88) (background light)) :foreground "dark slate blue")
+ (((class color) (min-colors 88) (background dark)) :foreground "LightSteelBlue")
+ (((class color) (min-colors 16) (background light)) :foreground "Orchid")
+ (((class color) (min-colors 16) (background dark)) :foreground "LightSteelBlue")
+ (((class color) (min-colors 8)) :foreground "blue" :weight bold)
+ (t :weight bold))
"Font Lock mode face used to highlight builtins."
:group 'font-lock-faces)
(defface font-lock-function-name-face
- '((((class color) (min-colors 88) (background light)) (:foreground "Blue1"))
- (((class color) (min-colors 88) (background dark)) (:foreground "LightSkyBlue"))
- (((class color) (min-colors 16) (background light)) (:foreground "Blue"))
- (((class color) (min-colors 16) (background dark)) (:foreground "LightSkyBlue"))
- (((class color) (min-colors 8)) (:foreground "blue" :weight bold))
- (t (:inverse-video t :weight bold)))
+ '((((class color) (min-colors 88) (background light)) :foreground "Blue1")
+ (((class color) (min-colors 88) (background dark)) :foreground "LightSkyBlue")
+ (((class color) (min-colors 16) (background light)) :foreground "Blue")
+ (((class color) (min-colors 16) (background dark)) :foreground "LightSkyBlue")
+ (((class color) (min-colors 8)) :foreground "blue" :weight bold)
+ (t :inverse-video t :weight bold))
"Font Lock mode face used to highlight function names."
:group 'font-lock-faces)
(defface font-lock-variable-name-face
'((((class grayscale) (background light))
- (:foreground "Gray90" :weight bold :slant italic))
+ :foreground "Gray90" :weight bold :slant italic)
(((class grayscale) (background dark))
- (:foreground "DimGray" :weight bold :slant italic))
- (((class color) (min-colors 88) (background light)) (:foreground "sienna"))
- (((class color) (min-colors 88) (background dark)) (:foreground "LightGoldenrod"))
- (((class color) (min-colors 16) (background light)) (:foreground "DarkGoldenrod"))
- (((class color) (min-colors 16) (background dark)) (:foreground "LightGoldenrod"))
- (((class color) (min-colors 8)) (:foreground "yellow" :weight light))
- (t (:weight bold :slant italic)))
+ :foreground "DimGray" :weight bold :slant italic)
+ (((class color) (min-colors 88) (background light)) :foreground "sienna")
+ (((class color) (min-colors 88) (background dark)) :foreground "LightGoldenrod")
+ (((class color) (min-colors 16) (background light)) :foreground "DarkGoldenrod")
+ (((class color) (min-colors 16) (background dark)) :foreground "LightGoldenrod")
+ (((class color) (min-colors 8)) :foreground "yellow" :weight light)
+ (t :weight bold :slant italic))
"Font Lock mode face used to highlight variable names."
:group 'font-lock-faces)
(defface font-lock-type-face
- '((((class grayscale) (background light)) (:foreground "Gray90" :weight bold))
- (((class grayscale) (background dark)) (:foreground "DimGray" :weight bold))
- (((class color) (min-colors 88) (background light)) (:foreground "ForestGreen"))
- (((class color) (min-colors 88) (background dark)) (:foreground "PaleGreen"))
- (((class color) (min-colors 16) (background light)) (:foreground "ForestGreen"))
- (((class color) (min-colors 16) (background dark)) (:foreground "PaleGreen"))
- (((class color) (min-colors 8)) (:foreground "green"))
- (t (:weight bold :underline t)))
+ '((((class grayscale) (background light)) :foreground "Gray90" :weight bold)
+ (((class grayscale) (background dark)) :foreground "DimGray" :weight bold)
+ (((class color) (min-colors 88) (background light)) :foreground "ForestGreen")
+ (((class color) (min-colors 88) (background dark)) :foreground "PaleGreen")
+ (((class color) (min-colors 16) (background light)) :foreground "ForestGreen")
+ (((class color) (min-colors 16) (background dark)) :foreground "PaleGreen")
+ (((class color) (min-colors 8)) :foreground "green")
+ (t :weight bold :underline t))
"Font Lock mode face used to highlight type and classes."
:group 'font-lock-faces)
(defface font-lock-constant-face
'((((class grayscale) (background light))
- (:foreground "LightGray" :weight bold :underline t))
+ :foreground "LightGray" :weight bold :underline t)
(((class grayscale) (background dark))
- (:foreground "Gray50" :weight bold :underline t))
- (((class color) (min-colors 88) (background light)) (:foreground "dark cyan"))
- (((class color) (min-colors 88) (background dark)) (:foreground "Aquamarine"))
- (((class color) (min-colors 16) (background light)) (:foreground "CadetBlue"))
- (((class color) (min-colors 16) (background dark)) (:foreground "Aquamarine"))
- (((class color) (min-colors 8)) (:foreground "magenta"))
- (t (:weight bold :underline t)))
+ :foreground "Gray50" :weight bold :underline t)
+ (((class color) (min-colors 88) (background light)) :foreground "dark cyan")
+ (((class color) (min-colors 88) (background dark)) :foreground "Aquamarine")
+ (((class color) (min-colors 16) (background light)) :foreground "CadetBlue")
+ (((class color) (min-colors 16) (background dark)) :foreground "Aquamarine")
+ (((class color) (min-colors 8)) :foreground "magenta")
+ (t :weight bold :underline t))
"Font Lock mode face used to highlight constants and labels."
:group 'font-lock-faces)
(defface font-lock-warning-face
- '((((class color) (min-colors 88) (background light)) (:foreground "Red1" :weight bold))
- (((class color) (min-colors 88) (background dark)) (:foreground "Pink" :weight bold))
- (((class color) (min-colors 16) (background light)) (:foreground "Red1" :weight bold))
- (((class color) (min-colors 16) (background dark)) (:foreground "Pink" :weight bold))
- (((class color) (min-colors 8)) (:foreground "red"))
- (t (:inverse-video t :weight bold)))
+ '((t :inherit error))
"Font Lock mode face used to highlight warnings."
:group 'font-lock-faces)
`(;; Control structures. Emacs Lisp forms.
(,(concat
"(" (regexp-opt
- '("cond" "if" "while" "while-no-input" "let" "let*"
- "prog" "progn" "progv" "prog1" "prog2" "prog*"
- "inline" "lambda" "save-restriction" "save-excursion"
- "save-selected-window" "save-window-excursion"
- "save-match-data" "save-current-buffer"
+ '("cond" "if" "while" "while-no-input" "let" "let*" "letrec"
+ "pcase" "pcase-let" "pcase-let*" "prog" "progn" "progv"
+ "prog1" "prog2" "prog*" "inline" "lambda"
+ "save-restriction" "save-excursion" "save-selected-window"
+ "save-window-excursion" "save-match-data" "save-current-buffer"
"combine-after-change-calls" "unwind-protect"
- "condition-case" "condition-case-no-debug"
+ "condition-case" "condition-case-unless-debug"
"track-mouse" "eval-after-load" "eval-and-compile"
"eval-when-compile" "eval-when" "eval-next-after-load"
"with-case-table" "with-category-table"
"with-selected-window" "with-selected-frame"
"with-silent-modifications" "with-syntax-table"
"with-temp-buffer" "with-temp-file" "with-temp-message"
- "with-timeout" "with-timeout-handler") t)
+ "with-timeout" "with-timeout-handler" "with-wrapper-hook") t)
"\\>")
. 1)
;; Control structures. Common Lisp forms.
HCoop / bpt / emacs.git / blobdiff