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2917 lines
122 KiB
EmacsLisp
2917 lines
122 KiB
EmacsLisp
;;; font-lock.el --- Electric font lock mode
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;; Copyright (C) 1992, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
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;; Author: jwz, then rms, then sm <simon@gnu.org>
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;; Maintainer: FSF
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;; Keywords: languages, faces
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;; Font Lock mode is a minor mode that causes your comments to be displayed in
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;; one face, strings in another, reserved words in another, and so on.
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;;
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;; Comments will be displayed in `font-lock-comment-face'.
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;; Strings will be displayed in `font-lock-string-face'.
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;; Regexps are used to display selected patterns in other faces.
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;;
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;; To make the text you type be fontified, use M-x font-lock-mode RET.
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;; When this minor mode is on, the faces of the current line are updated with
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;; every insertion or deletion.
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;;
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;; To turn Font Lock mode on automatically, add this to your ~/.emacs file:
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;;
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;; (add-hook 'emacs-lisp-mode-hook 'turn-on-font-lock)
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;;
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;; Or if you want to turn Font Lock mode on in many modes:
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;;
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;; (global-font-lock-mode t)
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;;
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;; Fontification for a particular mode may be available in a number of levels
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;; of decoration. The higher the level, the more decoration, but the more time
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;; it takes to fontify. See the variable `font-lock-maximum-decoration', and
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;; also the variable `font-lock-maximum-size'. Support modes for Font Lock
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;; mode can be used to speed up Font Lock mode. See `font-lock-support-mode'.
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;;; How Font Lock mode fontifies:
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;; When Font Lock mode is turned on in a buffer, it (a) fontifies the entire
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;; buffer and (b) installs one of its fontification functions on one of the
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;; hook variables that are run by Emacs after every buffer change (i.e., an
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;; insertion or deletion). Fontification means the replacement of `face' text
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;; properties in a given region; Emacs displays text with these `face' text
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;; properties appropriately.
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;;
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;; Fontification normally involves syntactic (i.e., strings and comments) and
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;; regexp (i.e., keywords and everything else) passes. There are actually
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;; three passes; (a) the syntactic keyword pass, (b) the syntactic pass and (c)
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;; the keyword pass. Confused?
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;;
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;; The syntactic keyword pass places `syntax-table' text properties in the
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;; buffer according to the variable `font-lock-syntactic-keywords'. It is
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;; necessary because Emacs' syntax table is not powerful enough to describe all
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;; the different syntactic constructs required by the sort of people who decide
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;; that a single quote can be syntactic or not depending on the time of day.
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;; (What sort of person could decide to overload the meaning of a quote?)
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;; Obviously the syntactic keyword pass must occur before the syntactic pass.
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;;
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;; The syntactic pass places `face' text properties in the buffer according to
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;; syntactic context, i.e., according to the buffer's syntax table and buffer
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;; text's `syntax-table' text properties. It involves using a syntax parsing
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;; function to determine the context of different parts of a region of text. A
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;; syntax parsing function is necessary because generally strings and/or
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;; comments can span lines, and so the context of a given region is not
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;; necessarily apparent from the content of that region. Because the keyword
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;; pass only works within a given region, it is not generally appropriate for
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;; syntactic fontification. This is the first fontification pass that makes
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;; changes visible to the user; it fontifies strings and comments.
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;;
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;; The keyword pass places `face' text properties in the buffer according to
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;; the variable `font-lock-keywords'. It involves searching for given regexps
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;; (or calling given search functions) within the given region. This is the
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;; second fontification pass that makes changes visible to the user; it
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;; fontifies language reserved words, etc.
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;;
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;; Oh, and the answer is, "Yes, obviously just about everything should be done
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;; in a single syntactic pass, but the only syntactic parser available
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;; understands only strings and comments." Perhaps one day someone will write
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;; some syntactic parsers for common languages and a son-of-font-lock.el could
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;; use them rather then relying so heavily on the keyword (regexp) pass.
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;;; How Font Lock mode supports modes or is supported by modes:
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;; Modes that support Font Lock mode do so by defining one or more variables
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;; whose values specify the fontification. Font Lock mode knows of these
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;; variable names from (a) the buffer local variable `font-lock-defaults', if
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;; non-nil, or (b) the global variable `font-lock-defaults-alist', if the major
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;; mode has an entry. (Font Lock mode is set up via (a) where a mode's
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;; patterns are distributed with the mode's package library, and (b) where a
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;; mode's patterns are distributed with font-lock.el itself. An example of (a)
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;; is Pascal mode, an example of (b) is Lisp mode. Normally, the mechanism is
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;; (a); (b) is used where it is not clear which package library should contain
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;; the pattern definitions.) Font Lock mode chooses which variable to use for
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;; fontification based on `font-lock-maximum-decoration'.
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;;
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;; Font Lock mode fontification behaviour can be modified in a number of ways.
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;; See the below comments and the comments distributed throughout this file.
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;;; Constructing patterns:
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;; See the documentation for the variable `font-lock-keywords'.
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;;
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;; Efficient regexps for use as MATCHERs for `font-lock-keywords' and
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;; `font-lock-syntactic-keywords' can be generated via the function
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;; `regexp-opt', and their depth counted via the function `regexp-opt-depth'.
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;;; Adding patterns for modes that already support Font Lock:
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;; Though Font Lock highlighting patterns already exist for many modes, it's
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;; likely there's something that you want fontified that currently isn't, even
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;; at the maximum fontification level. You can add highlighting patterns via
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;; `font-lock-add-keywords'. For example, say in some C
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;; header file you #define the token `and' to expand to `&&', etc., to make
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;; your C code almost readable. In your ~/.emacs there could be:
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;;
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;; (font-lock-add-keywords 'c-mode '("\\<\\(and\\|or\\|not\\)\\>"))
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;;
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;; Some modes provide specific ways to modify patterns based on the values of
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;; other variables. For example, additional C types can be specified via the
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;; variable `c-font-lock-extra-types'.
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;;; Adding patterns for modes that do not support Font Lock:
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;; Not all modes support Font Lock mode. If you (as a user of the mode) add
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;; patterns for a new mode, you must define in your ~/.emacs a variable or
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;; variables that specify regexp fontification. Then, you should indicate to
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;; Font Lock mode, via the mode hook setting `font-lock-defaults', exactly what
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;; support is required. For example, say Foo mode should have the following
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;; regexps fontified case-sensitively, and comments and strings should not be
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;; fontified automagically. In your ~/.emacs there could be:
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;;
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;; (defvar foo-font-lock-keywords
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;; '(("\\<\\(one\\|two\\|three\\)\\>" . font-lock-keyword-face)
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;; ("\\<\\(four\\|five\\|six\\)\\>" . font-lock-type-face))
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;; "Default expressions to highlight in Foo mode.")
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;;
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;; (add-hook 'foo-mode-hook
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;; (function (lambda ()
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;; (make-local-variable 'font-lock-defaults)
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;; (setq font-lock-defaults '(foo-font-lock-keywords t)))))
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;;; Adding Font Lock support for modes:
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;; Of course, it would be better that the mode already supports Font Lock mode.
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;; The package author would do something similar to above. The mode must
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;; define at the top-level a variable or variables that specify regexp
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;; fontification. Then, the mode command should indicate to Font Lock mode,
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;; via `font-lock-defaults', exactly what support is required. For example,
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;; say Bar mode should have the following regexps fontified case-insensitively,
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;; and comments and strings should be fontified automagically. In bar.el there
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;; could be:
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;;
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;; (defvar bar-font-lock-keywords
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;; '(("\\<\\(uno\\|due\\|tre\\)\\>" . font-lock-keyword-face)
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;; ("\\<\\(quattro\\|cinque\\|sei\\)\\>" . font-lock-type-face))
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;; "Default expressions to highlight in Bar mode.")
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;;
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;; and within `bar-mode' there could be:
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;;
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;; (make-local-variable 'font-lock-defaults)
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;; (setq font-lock-defaults '(bar-font-lock-keywords nil t))
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;; What is fontification for? You might say, "It's to make my code look nice."
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;; I think it should be for adding information in the form of cues. These cues
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;; should provide you with enough information to both (a) distinguish between
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;; different items, and (b) identify the item meanings, without having to read
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;; the items and think about it. Therefore, fontification allows you to think
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;; less about, say, the structure of code, and more about, say, why the code
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;; doesn't work. Or maybe it allows you to think less and drift off to sleep.
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;;
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;; So, here are my opinions/advice/guidelines:
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;;
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;; - Highlight conceptual objects, such as function and variable names, and
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;; different objects types differently, i.e., (a) and (b) above, highlight
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;; function names differently to variable names.
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;; - Keep the faces distinct from each other as far as possible.
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;; i.e., (a) above.
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;; - Use the same face for the same conceptual object, across all modes.
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;; i.e., (b) above, all modes that have items that can be thought of as, say,
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;; keywords, should be highlighted with the same face, etc.
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;; - Make the face attributes fit the concept as far as possible.
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;; i.e., function names might be a bold colour such as blue, comments might
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;; be a bright colour such as red, character strings might be brown, because,
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;; err, strings are brown (that was not the reason, please believe me).
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;; - Don't use a non-nil OVERRIDE unless you have a good reason.
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;; Only use OVERRIDE for special things that are easy to define, such as the
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;; way `...' quotes are treated in strings and comments in Emacs Lisp mode.
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;; Don't use it to, say, highlight keywords in commented out code or strings.
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;; - Err, that's it.
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;;; Code:
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;; Define core `font-lock' group.
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(defgroup font-lock nil
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"Font Lock mode text highlighting package."
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:link '(custom-manual "(emacs)Font Lock")
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:group 'faces)
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(defgroup font-lock-highlighting-faces nil
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"Faces for highlighting text."
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:prefix "font-lock-"
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:group 'font-lock)
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(defgroup font-lock-extra-types nil
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"Extra mode-specific type names for highlighting declarations."
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:group 'font-lock)
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;; Define support mode groups here to impose `font-lock' group order.
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(defgroup fast-lock nil
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"Font Lock support mode to cache fontification."
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:link '(custom-manual "(emacs)Support Modes")
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:load 'fast-lock
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:group 'font-lock)
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(defgroup lazy-lock nil
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"Font Lock support mode to fontify lazily."
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:link '(custom-manual "(emacs)Support Modes")
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:load 'lazy-lock
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:group 'font-lock)
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;; User variables.
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(defcustom font-lock-maximum-size (* 250 1024)
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"*Maximum size of a buffer for buffer fontification.
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Only buffers less than this can be fontified when Font Lock mode is turned on.
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If nil, means size is irrelevant.
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If a list, each element should be a cons pair of the form (MAJOR-MODE . SIZE),
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where MAJOR-MODE is a symbol or t (meaning the default). For example:
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((c-mode . 256000) (c++-mode . 256000) (rmail-mode . 1048576))
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means that the maximum size is 250K for buffers in C or C++ modes, one megabyte
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for buffers in Rmail mode, and size is irrelevant otherwise."
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:type '(choice (const :tag "none" nil)
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(integer :tag "size")
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(repeat :menu-tag "mode specific" :tag "mode specific"
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:value ((t . nil))
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(cons :tag "Instance"
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(radio :tag "Mode"
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(const :tag "all" t)
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(symbol :tag "name"))
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(radio :tag "Size"
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(const :tag "none" nil)
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(integer :tag "size")))))
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:group 'font-lock)
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(defcustom font-lock-maximum-decoration t
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"*Maximum decoration level for fontification.
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If nil, use the default decoration (typically the minimum available).
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If t, use the maximum decoration available.
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If a number, use that level of decoration (or if not available the maximum).
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If a list, each element should be a cons pair of the form (MAJOR-MODE . LEVEL),
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where MAJOR-MODE is a symbol or t (meaning the default). For example:
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((c-mode . t) (c++-mode . 2) (t . 1))
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means use the maximum decoration available for buffers in C mode, level 2
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decoration for buffers in C++ mode, and level 1 decoration otherwise."
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:type '(choice (const :tag "default" nil)
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(const :tag "maximum" t)
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(integer :tag "level" 1)
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(repeat :menu-tag "mode specific" :tag "mode specific"
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:value ((t . t))
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(cons :tag "Instance"
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(radio :tag "Mode"
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(const :tag "all" t)
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(symbol :tag "name"))
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(radio :tag "Decoration"
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(const :tag "default" nil)
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(const :tag "maximum" t)
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(integer :tag "level" 1)))))
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:group 'font-lock)
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(defcustom font-lock-verbose (* 0 1024)
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"*If non-nil, means show status messages for buffer fontification.
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If a number, only buffers greater than this size have fontification messages."
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:type '(choice (const :tag "never" nil)
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(const :tag "always" t)
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(integer :tag "size"))
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:group 'font-lock)
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;; Fontification variables:
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(defvar font-lock-keywords nil
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"A list of the keywords to highlight.
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Each element should be of the form:
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MATCHER
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(MATCHER . MATCH)
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(MATCHER . FACENAME)
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(MATCHER . HIGHLIGHT)
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(MATCHER HIGHLIGHT ...)
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(eval . FORM)
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where HIGHLIGHT should be either MATCH-HIGHLIGHT or MATCH-ANCHORED.
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FORM is an expression, whose value should be a keyword element, evaluated when
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the keyword is (first) used in a buffer. This feature can be used to provide a
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keyword that can only be generated when Font Lock mode is actually turned on.
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For highlighting single items, typically only MATCH-HIGHLIGHT is required.
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However, if an item or (typically) items are to be highlighted following the
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instance of another item (the anchor) then MATCH-ANCHORED may be required.
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MATCH-HIGHLIGHT should be of the form:
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(MATCH FACENAME OVERRIDE LAXMATCH)
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Where MATCHER can be either the regexp to search for, or the function name to
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call to make the search (called with one argument, the limit of the search) and
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return non-nil if it succeeds (and set `match-data' appropriately).
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MATCHER regexps can be generated via the function `regexp-opt'. MATCH is the
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subexpression of MATCHER to be highlighted. MATCH can be calculated via the
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function `regexp-opt-depth'. FACENAME is an expression whose value is the face
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name to use. Face default attributes can be modified via \\[customize].
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OVERRIDE and LAXMATCH are flags. If OVERRIDE is t, existing fontification can
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be overwritten. If `keep', only parts not already fontified are highlighted.
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If `prepend' or `append', existing fontification is merged with the new, in
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which the new or existing fontification, respectively, takes precedence.
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If LAXMATCH is non-nil, no error is signaled if there is no MATCH in MATCHER.
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For example, an element of the form highlights (if not already highlighted):
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\"\\\\\\=<foo\\\\\\=>\" Discrete occurrences of \"foo\" in the value of the
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variable `font-lock-keyword-face'.
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(\"fu\\\\(bar\\\\)\" . 1) Substring \"bar\" within all occurrences of \"fubar\" in
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the value of `font-lock-keyword-face'.
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(\"fubar\" . fubar-face) Occurrences of \"fubar\" in the value of `fubar-face'.
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(\"foo\\\\|bar\" 0 foo-bar-face t)
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Occurrences of either \"foo\" or \"bar\" in the value
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of `foo-bar-face', even if already highlighted.
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(fubar-match 1 fubar-face)
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The first subexpression within all occurrences of
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whatever the function `fubar-match' finds and matches
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in the value of `fubar-face'.
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MATCH-ANCHORED should be of the form:
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(MATCHER PRE-MATCH-FORM POST-MATCH-FORM MATCH-HIGHLIGHT ...)
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Where MATCHER is as for MATCH-HIGHLIGHT with one exception; see below.
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PRE-MATCH-FORM and POST-MATCH-FORM are evaluated before the first, and after
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the last, instance MATCH-ANCHORED's MATCHER is used. Therefore they can be
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used to initialise before, and cleanup after, MATCHER is used. Typically,
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PRE-MATCH-FORM is used to move to some position relative to the original
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MATCHER, before starting with MATCH-ANCHORED's MATCHER. POST-MATCH-FORM might
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be used to move, before resuming with MATCH-ANCHORED's parent's MATCHER.
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For example, an element of the form highlights (if not already highlighted):
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(\"\\\\\\=<anchor\\\\\\=>\" (0 anchor-face) (\"\\\\\\=<item\\\\\\=>\" nil nil (0 item-face)))
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Discrete occurrences of \"anchor\" in the value of `anchor-face', and subsequent
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discrete occurrences of \"item\" (on the same line) in the value of `item-face'.
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(Here PRE-MATCH-FORM and POST-MATCH-FORM are nil. Therefore \"item\" is
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initially searched for starting from the end of the match of \"anchor\", and
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searching for subsequent instance of \"anchor\" resumes from where searching
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for \"item\" concluded.)
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The above-mentioned exception is as follows. The limit of the MATCHER search
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defaults to the end of the line after PRE-MATCH-FORM is evaluated.
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However, if PRE-MATCH-FORM returns a position greater than the position after
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PRE-MATCH-FORM is evaluated, that position is used as the limit of the search.
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It is generally a bad idea to return a position greater than the end of the
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line, i.e., cause the MATCHER search to span lines.
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Note that the MATCH-ANCHORED feature is experimental; in the future, we may
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replace it with other ways of providing this functionality.
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These regular expressions should not match text which spans lines. While
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\\[font-lock-fontify-buffer] handles multi-line patterns correctly, updating
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when you edit the buffer does not, since it considers text one line at a time.
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This variable is set by major modes via the variable `font-lock-defaults'.
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Be careful when composing regexps for this list; a poorly written pattern can
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dramatically slow things down!")
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;; This variable is used by mode packages that support Font Lock mode by
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;; defining their own keywords to use for `font-lock-keywords'. (The mode
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;; command should make it buffer-local and set it to provide the set up.)
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(defvar font-lock-defaults nil
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"Defaults for Font Lock mode specified by the major mode.
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Defaults should be of the form:
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(KEYWORDS KEYWORDS-ONLY CASE-FOLD SYNTAX-ALIST SYNTAX-BEGIN ...)
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KEYWORDS may be a symbol (a variable or function whose value is the keywords to
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use for fontification) or a list of symbols. If KEYWORDS-ONLY is non-nil,
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syntactic fontification (strings and comments) is not performed.
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If CASE-FOLD is non-nil, the case of the keywords is ignored when fontifying.
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If SYNTAX-ALIST is non-nil, it should be a list of cons pairs of the form
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\(CHAR-OR-STRING . STRING) used to set the local Font Lock syntax table, for
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keyword and syntactic fontification (see `modify-syntax-entry').
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If SYNTAX-BEGIN is non-nil, it should be a function with no args used to move
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backwards outside any enclosing syntactic block, for syntactic fontification.
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Typical values are `beginning-of-line' (i.e., the start of the line is known to
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be outside a syntactic block), or `beginning-of-defun' for programming modes or
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||
`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
|
||
(let (;; We use `beginning-of-defun', rather than nil, for SYNTAX-BEGIN.
|
||
;; Thus the calculation of the cache is usually faster but not
|
||
;; infallible, so we risk mis-fontification. sm.
|
||
(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")) beginning-of-defun
|
||
;; 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")) 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
|
||
;; 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
|
||
;; 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 (("+-*/.<>=!?$%_&~^:" . "w")) beginning-of-defun
|
||
;; Obsoleted by Emacs 20 parse-partial-sexp's COMMENTSTOP.
|
||
;(font-lock-comment-start-regexp . ";")
|
||
(font-lock-mark-block-function . mark-defun)))
|
||
(scheme-mode-defaults
|
||
'((scheme-font-lock-keywords
|
||
scheme-font-lock-keywords-1 scheme-font-lock-keywords-2)
|
||
nil t (("+-*/.<>=!?$%_&~^:" . "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)))
|
||
;; For TeX modes we could use `backward-paragraph' for the same reason.
|
||
;; But we don't, because paragraph breaks are arguably likely enough to
|
||
;; occur within a genuine syntactic block to make it too risky.
|
||
;; 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
|
||
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 'c-mode c-mode-defaults)
|
||
(cons 'c++-mode c++-mode-defaults)
|
||
(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 fall-back Font Lock defaults for major modes.
|
||
Each item should be a list of the form:
|
||
|
||
(MAJOR-MODE . FONT-LOCK-DEFAULTS)
|
||
|
||
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'.
|
||
This is normally set via `font-lock-add-keywords'.")
|
||
|
||
(defvar font-lock-keywords-only nil
|
||
"*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.
|
||
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'.
|
||
|
||
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.
|
||
This is normally set via `font-lock-defaults'.")
|
||
|
||
;; If this is nil, we only use the beginning of the buffer if we can't use
|
||
;; `font-lock-cache-position' and `font-lock-cache-state'.
|
||
(defvar font-lock-beginning-of-syntax-function nil
|
||
"*Non-nil means use this function to move back outside of a syntactic block.
|
||
When called with no args it should leave point at the beginning of any
|
||
enclosing syntactic block.
|
||
If this is nil, the beginning of the buffer is used (in the worst case).
|
||
This is normally set via `font-lock-defaults'.")
|
||
|
||
(defvar font-lock-mark-block-function nil
|
||
"*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'.")
|
||
|
||
;; 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.
|
||
This is normally set via `font-lock-defaults'.")
|
||
|
||
(defvar font-lock-unfontify-buffer-function 'font-lock-default-unfontify-buffer
|
||
"Function to use for unfontifying the buffer.
|
||
This is used when turning off Font Lock mode.
|
||
This is normally set via `font-lock-defaults'.")
|
||
|
||
(defvar font-lock-fontify-region-function 'font-lock-default-fontify-region
|
||
"Function to use for fontifying a region.
|
||
It should take two args, the beginning and end of the region, and an optional
|
||
third arg VERBOSE. If non-nil, the function should print status messages.
|
||
This is normally set via `font-lock-defaults'.")
|
||
|
||
(defvar font-lock-unfontify-region-function 'font-lock-default-unfontify-region
|
||
"Function to use for unfontifying a region.
|
||
It should take two args, the beginning and end of the region.
|
||
This is normally set via `font-lock-defaults'.")
|
||
|
||
(defvar font-lock-inhibit-thing-lock nil
|
||
"List of Font Lock mode related modes that should not be turned on.
|
||
Currently, valid mode names as `fast-lock-mode' and `lazy-lock-mode'.
|
||
This is normally set via `font-lock-defaults'.")
|
||
|
||
(defvar font-lock-mode nil) ; Whether we are turned on/modeline.
|
||
(defvar font-lock-fontified nil) ; Whether we have fontified the buffer.
|
||
|
||
;;;###autoload
|
||
(defvar font-lock-mode-hook nil
|
||
"Function or functions to run on entry to Font Lock mode.")
|
||
|
||
;; 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.
|
||
(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)) (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)
|
||
;;
|
||
;; 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)
|
||
"Toggle Font Lock mode.
|
||
With arg, turn Font Lock mode on if and only if arg is positive.
|
||
|
||
When Font Lock mode is enabled, text is fontified as you type it:
|
||
|
||
- Comments are displayed in `font-lock-comment-face';
|
||
- Strings are displayed in `font-lock-string-face';
|
||
- Certain other expressions are displayed in other faces according to the
|
||
value of the variable `font-lock-keywords'.
|
||
|
||
You can enable Font Lock mode in any major mode automatically by turning on in
|
||
the major mode's hook. For example, put in your ~/.emacs:
|
||
|
||
(add-hook 'c-mode-hook 'turn-on-font-lock)
|
||
|
||
Alternatively, you can use Global Font Lock mode to automagically turn on Font
|
||
Lock mode in buffers whose major mode supports it and whose major mode is one
|
||
of `font-lock-global-modes'. For example, put in your ~/.emacs:
|
||
|
||
(global-font-lock-mode t)
|
||
|
||
There are a number of support modes that may be used to speed up Font Lock mode
|
||
in various ways, specified via the variable `font-lock-support-mode'. Where
|
||
major modes support different levels of fontification, you can use the variable
|
||
`font-lock-maximum-decoration' to specify which level you generally prefer.
|
||
When you turn Font Lock mode on/off the buffer is fontified/defontified, though
|
||
fontification occurs only if the buffer is less than `font-lock-maximum-size'.
|
||
|
||
For example, to specify that Font Lock mode use use Lazy Lock mode as a support
|
||
mode and use maximum levels of fontification, put in your ~/.emacs:
|
||
|
||
(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].
|
||
|
||
To fontify a block (the function or paragraph containing point, or a number of
|
||
lines around point), perhaps because modification on the current line caused
|
||
syntactic change on other lines, you can use \\[font-lock-fontify-block].
|
||
|
||
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).
|
||
(let ((on-p (and (not noninteractive)
|
||
(not (eq (aref (buffer-name) 0) ?\ ))
|
||
(if arg
|
||
(> (prefix-numeric-value arg) 0)
|
||
(not font-lock-mode)))))
|
||
(set (make-local-variable 'font-lock-mode) on-p)
|
||
;; Turn on Font Lock mode.
|
||
(when on-p
|
||
(make-local-hook 'after-change-functions)
|
||
(add-hook 'after-change-functions 'font-lock-after-change-function nil t)
|
||
(font-lock-set-defaults)
|
||
(font-lock-turn-on-thing-lock)
|
||
(run-hooks 'font-lock-mode-hook)
|
||
;; Fontify the buffer if we have to.
|
||
(let ((max-size (font-lock-value-in-major-mode font-lock-maximum-size)))
|
||
(cond (font-lock-fontified
|
||
nil)
|
||
((or (null max-size) (> max-size (buffer-size)))
|
||
(font-lock-fontify-buffer))
|
||
(font-lock-verbose
|
||
(message "Fontifying %s...buffer too big" (buffer-name))))))
|
||
;; Turn off Font Lock mode.
|
||
(unless on-p
|
||
(remove-hook 'after-change-functions 'font-lock-after-change-function t)
|
||
(font-lock-unfontify-buffer)
|
||
(font-lock-turn-off-thing-lock)
|
||
(font-lock-unset-defaults))
|
||
(force-mode-line-update)))
|
||
|
||
;;;###autoload
|
||
(defun turn-on-font-lock ()
|
||
"Turn on Font Lock mode conditionally.
|
||
Turn on only if the terminal can display it."
|
||
(when (and (not font-lock-mode) window-system)
|
||
(font-lock-mode)))
|
||
|
||
;;;###autoload
|
||
(defun font-lock-add-keywords (major-mode keywords &optional append)
|
||
"Add highlighting KEYWORDS for MAJOR-MODE.
|
||
MAJOR-MODE should be a symbol, the major mode command name, such as `c-mode'
|
||
or nil. If nil, highlighting keywords are added for the current buffer.
|
||
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 is any other non-nil value, they are added at the
|
||
end of the current highlighting list.
|
||
|
||
For example:
|
||
|
||
(font-lock-add-keywords 'c-mode
|
||
'((\"\\\\\\=<\\\\(FIXME\\\\):\" 1 font-lock-warning-face prepend)
|
||
(\"\\\\\\=<\\\\(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.
|
||
|
||
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.
|
||
(let ((spec (cons keywords append)) cell)
|
||
(if (setq cell (assq major-mode font-lock-keywords-alist))
|
||
(setcdr cell (append (cdr cell) (list spec)))
|
||
(push (list major-mode spec) font-lock-keywords-alist))))
|
||
(font-lock-mode
|
||
;; Otherwise if Font Lock mode is on, set or add the keywords now.
|
||
(if (eq append 'set)
|
||
(setq font-lock-keywords keywords)
|
||
(let ((old (if (eq (car-safe font-lock-keywords) t)
|
||
(cdr font-lock-keywords)
|
||
font-lock-keywords)))
|
||
(setq font-lock-keywords (if append
|
||
(append old keywords)
|
||
(append keywords old))))))))
|
||
|
||
;;; 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
|
||
;; balked at that way, as I see it as just re-moulding the same problem in
|
||
;; another form. That is; some person would still have to keep track of which
|
||
;; modes (which may not even be distributed with Emacs) support Font Lock mode.
|
||
;; The list would always be out of date. And that person might have to be me.
|
||
|
||
;; Implementation.
|
||
;;
|
||
;; In a previous discussion the following hack came to mind. It is a gross
|
||
;; hack, but it generally works. We use the convention that major modes start
|
||
;; by calling the function `kill-all-local-variables', which in turn runs
|
||
;; functions on the hook variable `change-major-mode-hook'. We attach our
|
||
;; function `font-lock-change-major-mode' to that hook. Of course, when this
|
||
;; hook is run, the major mode is in the process of being changed and we do not
|
||
;; know what the final major mode will be. So, `font-lock-change-major-mode'
|
||
;; only (a) notes the name of the current buffer, and (b) adds our function
|
||
;; `turn-on-font-lock-if-enabled' to the hook variables `find-file-hooks' and
|
||
;; `post-command-hook' (for buffers that are not visiting files). By the time
|
||
;; the functions on the first of these hooks to be run are run, the new major
|
||
;; mode is assumed to be in place. This way we get a Font Lock function run
|
||
;; when a major mode is turned on, without knowing major modes or their hooks.
|
||
;;
|
||
;; Naturally this requires that (a) major modes run `kill-all-local-variables',
|
||
;; as they are supposed to do, and (b) the major mode is in place after the
|
||
;; file is visited or the command that ran `kill-all-local-variables' has
|
||
;; finished, whichever the sooner. Arguably, any major mode that does not
|
||
;; follow the convension (a) is broken, and I can't think of any reason why (b)
|
||
;; would not be met (except `gnudoit' on non-files). However, it is not clean.
|
||
;;
|
||
;; Probably the cleanest solution is to have each major mode function run some
|
||
;; hook, e.g., `major-mode-hook', but maybe implementing that change is
|
||
;; impractical. I am personally against making `setq' a macro or be advised,
|
||
;; or have a special function such as `set-major-mode', but maybe someone can
|
||
;; come up with another solution?
|
||
|
||
;; User interface.
|
||
;;
|
||
;; Although Global Font Lock mode is a pseudo-mode, I think that the user
|
||
;; interface should conform to the usual Emacs convention for modes, i.e., a
|
||
;; command to toggle the feature (`global-font-lock-mode') with a variable for
|
||
;; finer control of the mode's behaviour (`font-lock-global-modes').
|
||
;;
|
||
;; The feature should not be enabled by loading font-lock.el, since other
|
||
;; mechanisms for turning on Font Lock mode, such as M-x font-lock-mode RET or
|
||
;; (add-hook 'c-mode-hook 'turn-on-font-lock), would cause Font Lock mode to be
|
||
;; turned on everywhere. That would not be intuitive or informative because
|
||
;; loading a file tells you nothing about the feature or how to control it. It
|
||
;; would also be contrary to the Principle of Least Surprise. sm.
|
||
|
||
(defvar font-lock-buffers nil) ; For remembering buffers.
|
||
|
||
;;;###autoload
|
||
(defun global-font-lock-mode (&optional arg message)
|
||
"Toggle Global Font Lock mode.
|
||
With prefix ARG, turn Global Font Lock mode on if and only if ARG is positive.
|
||
Displays a message saying whether the mode is on or off if MESSAGE is non-nil.
|
||
Returns the new status of Global Font Lock mode (non-nil means on).
|
||
|
||
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 ((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 %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))
|
||
;; 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
|
||
;; file is visited or the current command has finished.
|
||
(when global-font-lock-mode
|
||
(add-hook 'post-command-hook 'turn-on-font-lock-if-enabled)
|
||
(add-to-list 'font-lock-buffers (current-buffer))))
|
||
|
||
(defun turn-on-font-lock-if-enabled ()
|
||
;; Gross hack warning: Delicate readers should avert eyes now.
|
||
;; Turn on Font Lock mode if it's supported by the major mode and enabled by
|
||
;; the user.
|
||
(remove-hook 'post-command-hook 'turn-on-font-lock-if-enabled)
|
||
(while font-lock-buffers
|
||
(when (buffer-live-p (car font-lock-buffers))
|
||
(save-excursion
|
||
(set-buffer (car font-lock-buffers))
|
||
(when (and (or font-lock-defaults
|
||
(assq major-mode font-lock-defaults-alist))
|
||
(or (eq font-lock-global-modes t)
|
||
(if (eq (car-safe font-lock-global-modes) 'not)
|
||
(not (memq major-mode (cdr font-lock-global-modes)))
|
||
(memq major-mode font-lock-global-modes))))
|
||
(let (inhibit-quit)
|
||
(turn-on-font-lock)))))
|
||
(setq font-lock-buffers (cdr font-lock-buffers))))
|
||
|
||
(add-hook 'change-major-mode-hook 'font-lock-change-major-mode)
|
||
|
||
;;; End of Global Font Lock 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.
|
||
|
||
(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
|
||
Lazy Lock mode (symbol `lazy-lock-mode'). See those modes for more info.
|
||
If nil, means support for Font Lock mode is never performed.
|
||
If a symbol, use that support mode.
|
||
If a list, each element should be of the form (MAJOR-MODE . SUPPORT-MODE),
|
||
where MAJOR-MODE is a symbol or t (meaning the default). For example:
|
||
((c-mode . fast-lock-mode) (c++-mode . fast-lock-mode) (t . lazy-lock-mode))
|
||
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."
|
||
: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 "Decoration"
|
||
(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)
|
||
|
||
(defun font-lock-turn-on-thing-lock ()
|
||
(let ((thing-mode (font-lock-value-in-major-mode font-lock-support-mode)))
|
||
(cond ((eq thing-mode 'fast-lock-mode)
|
||
(fast-lock-mode t))
|
||
((eq thing-mode 'lazy-lock-mode)
|
||
(lazy-lock-mode t)))))
|
||
|
||
(defun font-lock-turn-off-thing-lock ()
|
||
(cond (fast-lock-mode
|
||
(fast-lock-mode nil))
|
||
(lazy-lock-mode
|
||
(lazy-lock-mode nil))))
|
||
|
||
(defun font-lock-after-fontify-buffer ()
|
||
(cond (fast-lock-mode
|
||
(fast-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))
|
||
(lazy-lock-mode
|
||
(lazy-lock-after-unfontify-buffer))))
|
||
|
||
;;; End of Font Lock Support mode.
|
||
|
||
;;; 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 ()
|
||
"Fontify the current buffer the way `font-lock-mode' would."
|
||
(interactive)
|
||
(let ((font-lock-verbose (or font-lock-verbose (interactive-p))))
|
||
(funcall font-lock-fontify-buffer-function)))
|
||
|
||
(defun font-lock-unfontify-buffer ()
|
||
(funcall font-lock-unfontify-buffer-function))
|
||
|
||
(defun font-lock-fontify-region (beg end &optional loudly)
|
||
(funcall font-lock-fontify-region-function beg end loudly))
|
||
|
||
(defun font-lock-unfontify-region (beg end)
|
||
(funcall font-lock-unfontify-region-function beg end))
|
||
|
||
(defun font-lock-default-fontify-buffer ()
|
||
(let ((verbose (if (numberp font-lock-verbose)
|
||
(> (buffer-size) font-lock-verbose)
|
||
font-lock-verbose)))
|
||
(when verbose
|
||
(message "Fontifying %s..." (buffer-name)))
|
||
;; Make sure we have the right `font-lock-keywords' etc.
|
||
(unless font-lock-mode
|
||
(font-lock-set-defaults))
|
||
;; Make sure we fontify etc. in the whole buffer.
|
||
(save-restriction
|
||
(widen)
|
||
(condition-case nil
|
||
(save-excursion
|
||
(save-match-data
|
||
(font-lock-fontify-region (point-min) (point-max) verbose)
|
||
(font-lock-after-fontify-buffer)
|
||
(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))
|
||
(font-lock-after-unfontify-buffer)
|
||
(setq font-lock-fontified nil)))
|
||
|
||
(defun font-lock-default-fontify-region (beg end loudly)
|
||
(save-buffer-state
|
||
((parse-sexp-lookup-properties font-lock-syntactic-keywords)
|
||
(old-syntax-table (syntax-table)))
|
||
(unwind-protect
|
||
(save-restriction
|
||
(widen)
|
||
;; Use the fontification syntax table, if any.
|
||
(when font-lock-syntax-table
|
||
(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))
|
||
;; Clean up.
|
||
(set-syntax-table old-syntax-table))))
|
||
|
||
;; The following must be rethought, since keywords can override fontification.
|
||
; ;; Now scan for keywords, but not if we are inside a comment now.
|
||
; (or (and (not font-lock-keywords-only)
|
||
; (let ((state (parse-partial-sexp beg end nil nil
|
||
; font-lock-cache-state)))
|
||
; (or (nth 4 state) (nth 7 state))))
|
||
; (font-lock-fontify-keywords-region beg end))
|
||
|
||
(defun font-lock-default-unfontify-region (beg end)
|
||
(save-buffer-state 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)
|
||
(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.
|
||
The lines could be a function or paragraph, or a specified number of lines.
|
||
If ARG is given, fontify that many lines before and after point, or 16 lines if
|
||
no ARG is given and `font-lock-mark-block-function' is nil.
|
||
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 ((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
|
||
(save-match-data
|
||
(condition-case error-data
|
||
(if (or arg (not font-lock-mark-block-function))
|
||
(let ((lines (if arg (prefix-numeric-value arg) 16)))
|
||
(font-lock-fontify-region
|
||
(save-excursion (forward-line (- lines)) (point))
|
||
(save-excursion (forward-line lines) (point))))
|
||
(funcall font-lock-mark-block-function)
|
||
(font-lock-fontify-region (point) (mark)))
|
||
((error quit) (message "Fontifying block...%s" error-data)))))))
|
||
|
||
(define-key facemenu-keymap "\M-g" 'font-lock-fontify-block)
|
||
|
||
;;; End of Fontification functions.
|
||
|
||
;;; Additional text property functions.
|
||
|
||
;; The following text property functions should be builtins. This means they
|
||
;; should be written in C and put with all the other text property functions.
|
||
;; In the meantime, those that are used by font-lock.el are defined in Lisp
|
||
;; below and given a `font-lock-' prefix. Those that are not used are defined
|
||
;; in Lisp below and commented out. sm.
|
||
|
||
(defun font-lock-prepend-text-property (start end prop value &optional object)
|
||
"Prepend to one property of the text from START to END.
|
||
Arguments PROP and VALUE specify the property and value to prepend to the value
|
||
already in place. The resulting property values are always lists.
|
||
Optional argument OBJECT is the string or buffer containing the text."
|
||
(let ((val (if (listp value) value (list value))) next prev)
|
||
(while (/= start end)
|
||
(setq next (next-single-property-change start prop object end)
|
||
prev (get-text-property start prop object))
|
||
(put-text-property start next prop
|
||
(append val (if (listp prev) prev (list prev)))
|
||
object)
|
||
(setq start next))))
|
||
|
||
(defun font-lock-append-text-property (start end prop value &optional object)
|
||
"Append to one property of the text from START to END.
|
||
Arguments PROP and VALUE specify the property and value to append to the value
|
||
already in place. The resulting property values are always lists.
|
||
Optional argument OBJECT is the string or buffer containing the text."
|
||
(let ((val (if (listp value) value (list value))) next prev)
|
||
(while (/= start end)
|
||
(setq next (next-single-property-change start prop object end)
|
||
prev (get-text-property start prop object))
|
||
(put-text-property start next prop
|
||
(append (if (listp prev) prev (list prev)) val)
|
||
object)
|
||
(setq start next))))
|
||
|
||
(defun font-lock-fillin-text-property (start end prop value &optional object)
|
||
"Fill in one property of the text from START to END.
|
||
Arguments PROP and VALUE specify the property and value to put where none are
|
||
already in place. Therefore existing property values are not overwritten.
|
||
Optional argument OBJECT is the string or buffer containing the text."
|
||
(let ((start (text-property-any start end prop nil object)) next)
|
||
(while start
|
||
(setq next (next-single-property-change start prop object end))
|
||
(put-text-property start next prop value object)
|
||
(setq start (text-property-any next end prop nil object)))))
|
||
|
||
;; For completeness: this is to `remove-text-properties' as `put-text-property'
|
||
;; is to `add-text-properties', etc.
|
||
;(defun remove-text-property (start end property &optional object)
|
||
; "Remove a property from text from START to END.
|
||
;Argument PROPERTY is the property to remove.
|
||
;Optional argument OBJECT is the string or buffer containing the text.
|
||
;Return t if the property was actually removed, nil otherwise."
|
||
; (remove-text-properties start end (list property) object))
|
||
|
||
;; For consistency: maybe this should be called `remove-single-property' like
|
||
;; `next-single-property-change' (not `next-single-text-property-change'), etc.
|
||
;(defun remove-single-text-property (start end prop value &optional object)
|
||
; "Remove a specific property value from text from START to END.
|
||
;Arguments PROP and VALUE specify the property and value to remove. The
|
||
;resulting property values are not equal to VALUE nor lists containing VALUE.
|
||
;Optional argument OBJECT is the string or buffer containing the text."
|
||
; (let ((start (text-property-not-all start end prop nil object)) next prev)
|
||
; (while start
|
||
; (setq next (next-single-property-change start prop object end)
|
||
; prev (get-text-property start prop object))
|
||
; (cond ((and (symbolp prev) (eq value prev))
|
||
; (remove-text-property start next prop object))
|
||
; ((and (listp prev) (memq value prev))
|
||
; (let ((new (delq value prev)))
|
||
; (cond ((null new)
|
||
; (remove-text-property start next prop object))
|
||
; ((= (length new) 1)
|
||
; (put-text-property start next prop (car new) object))
|
||
; (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.
|
||
|
||
;;; 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.
|
||
|
||
;;; 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.
|
||
|
||
;;; Keyword regexp fontification functions.
|
||
|
||
(defsubst font-lock-apply-highlight (highlight)
|
||
"Apply HIGHLIGHT following a match.
|
||
HIGHLIGHT should be of the form MATCH-HIGHLIGHT, see `font-lock-keywords'."
|
||
(let* ((match (nth 0 highlight))
|
||
(start (match-beginning match)) (end (match-end match))
|
||
(override (nth 2 highlight)))
|
||
(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 'face nil)
|
||
(put-text-property start end 'face (eval (nth 1 highlight)))))
|
||
((eq override t)
|
||
;; Override existing fontification.
|
||
(put-text-property start end 'face (eval (nth 1 highlight))))
|
||
((eq override 'prepend)
|
||
;; Prepend to existing fontification.
|
||
(font-lock-prepend-text-property start end 'face (eval (nth 1 highlight))))
|
||
((eq override 'append)
|
||
;; Append to existing fontification.
|
||
(font-lock-append-text-property start end 'face (eval (nth 1 highlight))))
|
||
((eq override 'keep)
|
||
;; Keep existing fontification.
|
||
(font-lock-fillin-text-property start end 'face (eval (nth 1 highlight)))))))
|
||
|
||
(defsubst font-lock-fontify-anchored-keywords (keywords limit)
|
||
"Fontify according to KEYWORDS until LIMIT.
|
||
KEYWORDS should be of the form MATCH-ANCHORED, see `font-lock-keywords',
|
||
LIMIT can be modified by the value of its PRE-MATCH-FORM."
|
||
(let ((matcher (nth 0 keywords)) (lowdarks (nthcdr 3 keywords)) highlights
|
||
;; Evaluate PRE-MATCH-FORM.
|
||
(pre-match-value (eval (nth 1 keywords))))
|
||
;; Set LIMIT to value of PRE-MATCH-FORM or the end of line.
|
||
(if (and (numberp pre-match-value) (> pre-match-value (point)))
|
||
(setq limit pre-match-value)
|
||
(save-excursion (end-of-line) (setq limit (point))))
|
||
(save-match-data
|
||
;; Find an occurrence of `matcher' before `limit'.
|
||
(while (if (stringp matcher)
|
||
(re-search-forward matcher limit t)
|
||
(funcall matcher limit))
|
||
;; Apply each highlight to this instance of `matcher'.
|
||
(setq highlights lowdarks)
|
||
(while highlights
|
||
(font-lock-apply-highlight (car highlights))
|
||
(setq highlights (cdr highlights)))))
|
||
;; Evaluate POST-MATCH-FORM.
|
||
(eval (nth 2 keywords))))
|
||
|
||
(defun font-lock-fontify-keywords-region (start end &optional 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 font-lock-keywords))
|
||
(bufname (buffer-name)) (count 0)
|
||
keyword matcher highlights)
|
||
;;
|
||
;; 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) ?.)))
|
||
;;
|
||
;; 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-highlight (car highlights))
|
||
(font-lock-fontify-anchored-keywords (car highlights) end))
|
||
(setq highlights (cdr highlights))))
|
||
(setq keywords (cdr keywords)))))
|
||
|
||
;;; End of Keyword regexp fontification functions.
|
||
|
||
;; Various functions.
|
||
|
||
(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
|
||
(list keyword '(0 font-lock-keyword-face)))
|
||
((eq (car keyword) 'eval) ; (eval . FORM)
|
||
(font-lock-compile-keyword (eval (cdr keyword))))
|
||
((eq (car-safe (cdr keyword)) 'quote) ; (MATCHER . 'FORM)
|
||
;; If FORM is a FACENAME then quote it. Otherwise ignore the quote.
|
||
(if (symbolp (nth 2 keyword))
|
||
(list (car keyword) (list 0 (cdr keyword)))
|
||
(font-lock-compile-keyword (cons (car keyword) (nth 2 keyword)))))
|
||
((numberp (cdr keyword)) ; (MATCHER . MATCH)
|
||
(list (car keyword) (list (cdr keyword) 'font-lock-keyword-face)))
|
||
((symbolp (cdr keyword)) ; (MATCHER . FACENAME)
|
||
(list (car keyword) (list 0 (cdr keyword))))
|
||
((nlistp (nth 1 keyword)) ; (MATCHER . HIGHLIGHT)
|
||
(list (car keyword) (cdr keyword)))
|
||
(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.
|
||
(if (consp alist)
|
||
(cdr (or (assq major-mode alist) (assq t alist)))
|
||
alist))
|
||
|
||
(defun font-lock-choose-keywords (keywords level)
|
||
;; Return LEVELth element of KEYWORDS. A LEVEL of nil is equal to a
|
||
;; LEVEL of 0, a LEVEL of t is equal to (1- (length KEYWORDS)).
|
||
(cond ((symbolp keywords)
|
||
keywords)
|
||
((numberp level)
|
||
(or (nth level keywords) (car (reverse keywords))))
|
||
((eq level t)
|
||
(car (reverse keywords)))
|
||
(t
|
||
(car keywords))))
|
||
|
||
(defvar font-lock-set-defaults nil) ; Whether we have set up defaults.
|
||
|
||
(defun font-lock-set-defaults ()
|
||
"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 fontification defaults.
|
||
(make-local-variable 'font-lock-fontified)
|
||
;; Set iff not previously set.
|
||
(unless font-lock-set-defaults
|
||
(set (make-local-variable 'font-lock-set-defaults) t)
|
||
(set (make-local-variable 'font-lock-cache-state) nil)
|
||
(set (make-local-variable 'font-lock-cache-position) (make-marker))
|
||
(let* ((defaults (or font-lock-defaults
|
||
(cdr (assq major-mode font-lock-defaults-alist))))
|
||
(keywords
|
||
(font-lock-choose-keywords (nth 0 defaults)
|
||
(font-lock-value-in-major-mode font-lock-maximum-decoration)))
|
||
(local (cdr (assq major-mode font-lock-keywords-alist))))
|
||
;; Regexp fontification?
|
||
(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)))
|
||
(setq local (cdr local)))
|
||
;; Syntactic fontification?
|
||
(when (nth 1 defaults)
|
||
(set (make-local-variable 'font-lock-keywords-only) t))
|
||
;; Case fold during regexp fontification?
|
||
(when (nth 2 defaults)
|
||
(set (make-local-variable 'font-lock-keywords-case-fold-search) t))
|
||
;; Syntax table for regexp and syntactic fontification?
|
||
(when (nth 3 defaults)
|
||
(let ((slist (nth 3 defaults)))
|
||
(set (make-local-variable 'font-lock-syntax-table)
|
||
(copy-syntax-table (syntax-table)))
|
||
(while slist
|
||
;; The character to modify may be a single CHAR or a STRING.
|
||
(let ((chars (if (numberp (car (car slist)))
|
||
(list (car (car slist)))
|
||
(mapcar 'identity (car (car slist)))))
|
||
(syntax (cdr (car slist))))
|
||
(while chars
|
||
(modify-syntax-entry (car chars) syntax
|
||
font-lock-syntax-table)
|
||
(setq chars (cdr chars)))
|
||
(setq slist (cdr slist))))))
|
||
;; Syntax function for syntactic fontification?
|
||
(when (nth 4 defaults)
|
||
(set (make-local-variable 'font-lock-beginning-of-syntax-function)
|
||
(nth 4 defaults)))
|
||
;; Variable alist?
|
||
(let ((alist (nthcdr 5 defaults)))
|
||
(while 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'."
|
||
(setq font-lock-set-defaults nil
|
||
font-lock-keywords nil
|
||
font-lock-keywords-only nil
|
||
font-lock-keywords-case-fold-search nil
|
||
font-lock-syntax-table nil
|
||
font-lock-beginning-of-syntax-function nil)
|
||
(let* ((defaults (or font-lock-defaults
|
||
(cdr (assq major-mode font-lock-defaults-alist))))
|
||
(alist (nthcdr 5 defaults)))
|
||
(while alist
|
||
(set (car (car alist)) (default-value (car (car alist))))
|
||
(setq alist (cdr alist)))))
|
||
|
||
;;; 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 names.")
|
||
|
||
(defvar font-lock-reference-face 'font-lock-reference-face
|
||
"Face name to use for reference names.")
|
||
|
||
(defvar font-lock-warning-face 'font-lock-warning-face
|
||
"Face name to use for things that should stand out.")
|
||
|
||
;; 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
|
||
(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 types."
|
||
:group 'font-lock-highlighting-faces)
|
||
|
||
(defface font-lock-reference-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 references."
|
||
: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.
|
||
|
||
;;; 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]
|
||
;; '("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.
|
||
|
||
;;; 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
|
||
;; 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' (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 (
|
||
^^^^ ^
|
||
Where the match subexpressions are: 1 2
|
||
|
||
The item is delimited by (match-beginning 1) and (match-end 1).
|
||
If (match-beginning 2) is non-nil, the item is followed by a `('.
|
||
|
||
This function could be MATCHER in a MATCH-ANCHORED `font-lock-keywords' item."
|
||
(when (looking-at "[ \t*]*\\(\\sw+\\)[ \t]*\\((\\)?")
|
||
(save-match-data
|
||
(condition-case nil
|
||
(save-restriction
|
||
;; Restrict to the end of line, currently guaranteed to be LIMIT.
|
||
(narrow-to-region (point-min) limit)
|
||
(goto-char (match-end 1))
|
||
;; Move over any item value, etc., to the next item.
|
||
(while (not (looking-at "[ \t]*\\(\\(,\\)\\|;\\|$\\)"))
|
||
(goto-char (or (scan-sexps (point) 1) (point-max))))
|
||
(goto-char (match-end 2)))
|
||
(error t)))))
|
||
|
||
;; Lisp.
|
||
|
||
(defconst lisp-font-lock-keywords-1
|
||
(eval-when-compile
|
||
(list
|
||
;;
|
||
;; Definitions.
|
||
(list (concat "(\\(def\\("
|
||
;; Function declarations.
|
||
"\\(advice\\|alias\\|"
|
||
"ine-\\(derived-mode\\|function\\|skeleton\\|widget\\)\\|"
|
||
"macro\\|method\\|subst\\|un\\)\\|"
|
||
;; Variable declarations.
|
||
"\\(const\\|custom\\|face\\|var\\)\\|"
|
||
;; Structure declarations.
|
||
"\\(class\\|group\\|struct\\|type\\)"
|
||
"\\)\\)\\>"
|
||
;; Any whitespace and defined object.
|
||
"[ \t'\(]*"
|
||
"\\(\\sw+\\)?")
|
||
'(1 font-lock-keyword-face)
|
||
'(7 (cond ((match-beginning 3) font-lock-function-name-face)
|
||
((match-beginning 5) font-lock-variable-name-face)
|
||
(t font-lock-type-face))
|
||
nil t))
|
||
;;
|
||
;; Emacs Lisp autoload cookies.
|
||
'("^;;;\\(###\\)\\(autoload\\)\\>"
|
||
(1 font-lock-reference-face prepend)
|
||
(2 font-lock-warning-face prepend))
|
||
))
|
||
"Subdued level highlighting for Lisp modes.")
|
||
|
||
(defconst lisp-font-lock-keywords-2
|
||
(append lisp-font-lock-keywords-1
|
||
(eval-when-compile
|
||
(list
|
||
;;
|
||
;; 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" "dont-compile"
|
||
"eval-after-load" "eval-and-compile" "eval-when-compile"
|
||
"eval-when"
|
||
"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"
|
||
"loop" "do" "do*" "dotimes" "dolist"
|
||
"proclaim" "declaim" "declare"
|
||
"lexical-let" "lexical-let*" "flet" "labels"
|
||
"return" "return-from") t)
|
||
"\\>")
|
||
1)
|
||
;;
|
||
;; Feature symbols as references.
|
||
'("(\\(featurep\\|provide\\|require\\)\\>[ \t']*\\(\\sw+\\)?"
|
||
(1 font-lock-keyword-face) (2 font-lock-reference-face nil t))
|
||
;;
|
||
;; Words inside \\[] tend to be for `substitute-command-keys'.
|
||
'("\\\\\\\\\\[\\(\\sw+\\)]" 1 font-lock-reference-face prepend)
|
||
;;
|
||
;; Words inside `' tend to be symbol names.
|
||
'("`\\(\\sw\\sw+\\)'" 1 font-lock-reference-face prepend)
|
||
;;
|
||
;; CLisp `:' keywords as builtins.
|
||
'("\\<:\\sw\\sw+\\>" 0 font-lock-builtin-face)
|
||
;;
|
||
;; ELisp and CLisp `&' keywords as types.
|
||
'("\\<\\&\\sw+\\>" . font-lock-type-face)
|
||
)))
|
||
"Gaudy level highlighting for Lisp modes.")
|
||
|
||
(defvar lisp-font-lock-keywords lisp-font-lock-keywords-1
|
||
"Default expressions to highlight in Lisp modes.")
|
||
|
||
;; Scheme.
|
||
|
||
(defconst scheme-font-lock-keywords-1
|
||
(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))
|
||
))
|
||
"Subdued expressions to highlight in Scheme modes.")
|
||
|
||
(defconst scheme-font-lock-keywords-2
|
||
(append scheme-font-lock-keywords-1
|
||
(eval-when-compile
|
||
(list
|
||
;;
|
||
;; Control structures.
|
||
(cons
|
||
(concat
|
||
"(" (regexp-opt
|
||
'("begin" "call-with-current-continuation" "call/cc"
|
||
"call-with-input-file" "call-with-output-file" "case" "cond"
|
||
"do" "else" "for-each" "if" "lambda"
|
||
"let" "let*" "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") t)
|
||
"\\>") 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)
|
||
)))
|
||
"Gaudy expressions to highlight in Scheme modes.")
|
||
|
||
(defvar scheme-font-lock-keywords scheme-font-lock-keywords-1
|
||
"Default expressions to highlight in Scheme modes.")
|
||
|
||
;; TeX.
|
||
|
||
;(defvar tex-font-lock-keywords
|
||
; ;; Regexps updated with help from Ulrik Dickow <dickow@nbi.dk>.
|
||
; '(("\\\\\\(begin\\|end\\|newcommand\\){\\([a-zA-Z0-9\\*]+\\)}"
|
||
; 2 font-lock-function-name-face)
|
||
; ("\\\\\\(cite\\|label\\|pageref\\|ref\\){\\([^} \t\n]+\\)}"
|
||
; 2 font-lock-reference-face)
|
||
; ;; It seems a bit dubious to use `bold' and `italic' faces since we might
|
||
; ;; not be able to display those fonts.
|
||
; ("{\\\\bf\\([^}]+\\)}" 1 'bold keep)
|
||
; ("{\\\\\\(em\\|it\\|sl\\)\\([^}]+\\)}" 2 'italic keep)
|
||
; ("\\\\\\([a-zA-Z@]+\\|.\\)" . font-lock-keyword-face)
|
||
; ("^[ \t\n]*\\\\def[\\\\@]\\(\\w+\\)" 1 font-lock-function-name-face keep))
|
||
; ;; Rewritten and extended for LaTeX2e by Ulrik Dickow <dickow@nbi.dk>.
|
||
; '(("\\\\\\(begin\\|end\\|newcommand\\){\\([a-zA-Z0-9\\*]+\\)}"
|
||
; 2 font-lock-function-name-face)
|
||
; ("\\\\\\(cite\\|label\\|pageref\\|ref\\){\\([^} \t\n]+\\)}"
|
||
; 2 font-lock-reference-face)
|
||
; ("^[ \t]*\\\\def\\\\\\(\\(\\w\\|@\\)+\\)" 1 font-lock-function-name-face)
|
||
; "\\\\\\([a-zA-Z@]+\\|.\\)"
|
||
; ;; It seems a bit dubious to use `bold' and `italic' faces since we might
|
||
; ;; not be able to display those fonts.
|
||
; ;; LaTeX2e: \emph{This is emphasized}.
|
||
; ("\\\\emph{\\([^}]+\\)}" 1 'italic keep)
|
||
; ;; LaTeX2e: \textbf{This is bold}, \textit{...}, \textsl{...}
|
||
; ("\\\\text\\(\\(bf\\)\\|it\\|sl\\){\\([^}]+\\)}"
|
||
; 3 (if (match-beginning 2) 'bold 'italic) keep)
|
||
; ;; Old-style bf/em/it/sl. Stop at `\\' and un-escaped `&', for 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-reference-face)
|
||
(list (concat slash citations-opt opt arg)
|
||
(+ (regexp-opt-depth citations-opt) opt-depth arg-depth)
|
||
'font-lock-reference-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.")
|
||
|
||
;;; 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 accepted types are used to provide default variable values.
|
||
|
||
(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 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.
|
||
|
||
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
|
||
'("[io]?\\(f\\|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 not containing word-delimiters.
|
||
For example, a value of (\"string\") means the word string is treated as a type
|
||
name.
|
||
|
||
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 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.
|
||
|
||
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 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 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.
|
||
|
||
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)
|
||
|
||
;;; C.
|
||
|
||
;; [Murmur murmur murmur] Maestro, drum-roll please... [Murmur murmur murmur.]
|
||
;; Ahem. [Murmur murmur murmur] Lay-dees an Gennel-men. [Murmur murmur shhh!]
|
||
;; I am most proud and humbly honoured today [murmur murmur cough] to present
|
||
;; to you good people, the winner of the Second Millennium Award for The Most
|
||
;; Hairy Language Syntax. [Ahhh!] All rise please. [Shuffle shuffle
|
||
;; shuffle.] And a round of applause please. For... The C Language! [Roar.]
|
||
;;
|
||
;; Thank you... You are too kind... It is with a feeling of great privilege
|
||
;; and indeed emotion [sob] that I accept this award. It has been a long hard
|
||
;; road. But we know our destiny. And our future. For we must not rest.
|
||
;; There are more tokens to overload, more shoehorn, more methodologies. But
|
||
;; more is a plus! [Ha ha ha.] And more means plus! [Ho ho ho.] The future
|
||
;; is C++! [Ohhh!] The Third Millennium Award... Will be ours! [Roar.]
|
||
|
||
(defconst c-font-lock-keywords-1 nil
|
||
"Subdued level highlighting for C mode.")
|
||
|
||
(defconst c-font-lock-keywords-2 nil
|
||
"Medium level highlighting for C mode.
|
||
See also `c-font-lock-extra-types'.")
|
||
|
||
(defconst c-font-lock-keywords-3 nil
|
||
"Gaudy level highlighting for C mode.
|
||
See also `c-font-lock-extra-types'.")
|
||
|
||
(let* ((c-keywords
|
||
(eval-when-compile
|
||
(regexp-opt '("break" "continue" "do" "else" "for" "if" "return"
|
||
"switch" "while") 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
|
||
;;
|
||
;; These are all anchored at the beginning of line for speed.
|
||
;; Note that `c++-font-lock-keywords-1' depends on `c-font-lock-keywords-1'.
|
||
;;
|
||
;; Fontify function name definitions (GNU style; without type on line).
|
||
'("^\\(\\sw+\\)[ \t]*(" 1 font-lock-function-name-face)
|
||
;;
|
||
;; Fontify error directives.
|
||
'("^#[ \t]*error[ \t]+\\(.+\\)" 1 font-lock-warning-face prepend)
|
||
;;
|
||
;; Fontify filenames in #include <...> preprocessor directives as strings.
|
||
'("^#[ \t]*\\(import\\|include\\)[ \t]+\\(<[^>\"\n]*>?\\)"
|
||
2 font-lock-string-face)
|
||
;;
|
||
;; Fontify function macro names.
|
||
'("^#[ \t]*define[ \t]+\\(\\sw+\\)(" 1 font-lock-function-name-face)
|
||
;;
|
||
;; Fontify symbol names in #elif or #if ... defined preprocessor directives.
|
||
'("^#[ \t]*\\(elif\\|if\\)\\>"
|
||
("\\<\\(defined\\)\\>[ \t]*(?\\(\\sw+\\)?" nil nil
|
||
(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-builtin-face) (2 font-lock-variable-name-face nil t))
|
||
))
|
||
|
||
(setq c-font-lock-keywords-2
|
||
(append c-font-lock-keywords-1
|
||
(list
|
||
;;
|
||
;; Simple regexps for speed.
|
||
;;
|
||
;; Fontify all type specifiers.
|
||
`(eval .
|
||
(cons (concat "\\<\\(" (,@ c-type-types) "\\)\\>") 'font-lock-type-face))
|
||
;;
|
||
;; Fontify all builtin keywords (except case, default and goto; see below).
|
||
(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))
|
||
;; 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)))
|
||
)))
|
||
|
||
(setq c-font-lock-keywords-3
|
||
(append c-font-lock-keywords-2
|
||
;;
|
||
;; More complicated regexps for more complete highlighting for types.
|
||
;; We still have to fontify type specifiers individually, as C is so hairy.
|
||
(list
|
||
;;
|
||
;; Fontify all storage classes and type specifiers, plus their items.
|
||
`(eval .
|
||
(list (concat "\\<\\(" (,@ c-type-types) "\\)\\>"
|
||
"\\([ \t*&]+\\sw+\\>\\)*")
|
||
;; Fontify each declaration item.
|
||
(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"
|
||
(font-lock-match-c-style-declaration-item-and-skip-to-next
|
||
(goto-char (match-end 1)) nil
|
||
(1 (if (match-beginning 2)
|
||
font-lock-function-name-face
|
||
font-lock-variable-name-face))))
|
||
;;
|
||
;; Fontify anything at beginning of line as a declaration or definition.
|
||
'("^\\(\\sw+\\)\\>\\([ \t*]+\\sw+\\>\\)*"
|
||
(1 font-lock-type-face)
|
||
(font-lock-match-c-style-declaration-item-and-skip-to-next
|
||
(goto-char (or (match-beginning 2) (match-end 1))) nil
|
||
(1 (if (match-beginning 2)
|
||
font-lock-function-name-face
|
||
font-lock-variable-name-face))))
|
||
)))
|
||
)
|
||
|
||
(defvar c-font-lock-keywords c-font-lock-keywords-1
|
||
"Default expressions to highlight in C mode.
|
||
See also `c-font-lock-extra-types'.")
|
||
|
||
;;; C++.
|
||
|
||
(defconst c++-font-lock-keywords-1 nil
|
||
"Subdued level highlighting for C++ mode.")
|
||
|
||
(defconst c++-font-lock-keywords-2 nil
|
||
"Medium level highlighting for C++ mode.
|
||
See also `c++-font-lock-extra-types'.")
|
||
|
||
(defconst c++-font-lock-keywords-3 nil
|
||
"Gaudy level highlighting for C++ mode.
|
||
See also `c++-font-lock-extra-types'.")
|
||
|
||
(defun font-lock-match-c++-style-declaration-item-and-skip-to-next (limit)
|
||
;; Regexp matches after point: word<word>::word (
|
||
;; ^^^^ ^^^^ ^^^^ ^
|
||
;; Where the match subexpressions are: 1 3 5 6
|
||
;;
|
||
;; Item is delimited by (match-beginning 1) and (match-end 1).
|
||
;; If (match-beginning 3) is non-nil, that part of the item incloses a `<>'.
|
||
;; 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
|
||
;; 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
|
||
;; Restrict to the end of line, currently guaranteed to be LIMIT.
|
||
(narrow-to-region (point-min) limit)
|
||
(goto-char (match-end 1))
|
||
;; Move over any item value, etc., to the next item.
|
||
(while (not (looking-at "[ \t]*\\(\\(,\\)\\|;\\|$\\)"))
|
||
(goto-char (or (scan-sexps (point) 1) (point-max))))
|
||
(goto-char (match-end 2)))
|
||
(error t)))))
|
||
|
||
(let* ((c++-keywords
|
||
(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
|
||
(eval-when-compile
|
||
(regexp-opt
|
||
;; Taken from Stroustrup, minus keywords otherwise fontified.
|
||
'("+" "-" "*" "/" "%" "^" "&" "|" "~" "!" "=" "<" ">" "+=" "-="
|
||
"*=" "/=" "%=" "^=" "&=" "|=" "<<" ">>" ">>=" "<<=" "==" "!="
|
||
"<=" ">=" "&&" "||" "++" "--" "->*" "," "->" "[]" "()"))))
|
||
(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"
|
||
"inline" "friend" "bool" "virtual" "complex" "template"
|
||
"namespace" "using"
|
||
;; Mark Mitchell <mmitchell@usa.net> says these are new.
|
||
"explicit" "mutable"))))
|
||
c++-font-lock-extra-types)
|
||
"\\|"))
|
||
;;
|
||
;; 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
|
||
;;
|
||
;; The list `c-font-lock-keywords-1' less that for function names.
|
||
(cdr c-font-lock-keywords-1)
|
||
(list
|
||
;;
|
||
;; Class names etc.
|
||
(list (concat "\\<\\(class\\|public\\|private\\|protected\\)\\>[ \t]*"
|
||
"\\(" c++-type-spec "\\)?")
|
||
'(1 font-lock-type-face)
|
||
'(3 (if (match-beginning 6)
|
||
font-lock-type-face
|
||
font-lock-function-name-face) nil t)
|
||
'(5 font-lock-function-name-face nil t)
|
||
'(7 font-lock-function-name-face nil t))
|
||
;;
|
||
;; Fontify function name definitions, possibly incorporating class names.
|
||
(list (concat "^" c++-type-spec "[ \t]*(")
|
||
'(1 (if (or (match-beginning 2) (match-beginning 4))
|
||
font-lock-type-face
|
||
font-lock-function-name-face))
|
||
'(3 font-lock-function-name-face nil t)
|
||
'(5 font-lock-function-name-face nil t))
|
||
)))
|
||
|
||
(setq c++-font-lock-keywords-2
|
||
(append c++-font-lock-keywords-1
|
||
(list
|
||
;;
|
||
;; The list `c-font-lock-keywords-2' for C++ plus operator overloading.
|
||
`(eval .
|
||
(cons (concat "\\<\\(" (,@ c++-type-types) "\\)\\>")
|
||
'font-lock-type-face))
|
||
;;
|
||
;; Fontify operator overloading.
|
||
(list (concat "\\<\\(operator\\)\\>[ \t]*\\(" c++-operators "\\)?")
|
||
'(1 font-lock-keyword-face)
|
||
'(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))
|
||
;; This must come after the one for keywords and targets.
|
||
'(":" ("^[ \t]*\\(\\sw+\\)[ \t]*:\\($\\|[^:]\\)"
|
||
(beginning-of-line) (end-of-line)
|
||
(1 font-lock-reference-face)))
|
||
;;
|
||
;; Fontify other builtin keywords.
|
||
(concat "\\<" c++-keywords "\\>")
|
||
;;
|
||
;; Eric Hopper <hopper@omnifarious.mn.org> says `true' and `false' are new.
|
||
'("\\<\\(false\\|true\\)\\>" . font-lock-reference-face)
|
||
)))
|
||
|
||
(setq c++-font-lock-keywords-3
|
||
(append c++-font-lock-keywords-2
|
||
;;
|
||
;; More complicated regexps for more complete highlighting for types.
|
||
(list
|
||
;;
|
||
;; Fontify all storage classes and type specifiers, plus their items.
|
||
`(eval .
|
||
(list (concat "\\<\\(" (,@ c++-type-types) "\\)\\>" (,@ c++-type-suffix)
|
||
"\\([ \t*&]+" (,@ c++-type-spec) "\\)*")
|
||
;; Fontify each declaration item.
|
||
(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"
|
||
(font-lock-match-c++-style-declaration-item-and-skip-to-next
|
||
(goto-char (match-end 1)) nil
|
||
(1 (if (match-beginning 6)
|
||
font-lock-function-name-face
|
||
font-lock-variable-name-face))))
|
||
;;
|
||
;; Fontify anything at beginning of line as a declaration or definition.
|
||
(list (concat "^\\(" c++-type-spec "[ \t*&]*\\)+")
|
||
'(font-lock-match-c++-style-declaration-item-and-skip-to-next
|
||
(goto-char (match-beginning 1))
|
||
(goto-char (match-end 1))
|
||
(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)))
|
||
)))
|
||
)
|
||
|
||
(defvar c++-font-lock-keywords c++-font-lock-keywords-1
|
||
"Default expressions to highlight in C++ mode.
|
||
See also `c++-font-lock-extra-types'.")
|
||
|
||
;;; Objective-C.
|
||
|
||
(defconst objc-font-lock-keywords-1 nil
|
||
"Subdued level highlighting for Objective-C mode.")
|
||
|
||
(defconst objc-font-lock-keywords-2 nil
|
||
"Medium level highlighting for Objective-C mode.
|
||
See also `objc-font-lock-extra-types'.")
|
||
|
||
(defconst objc-font-lock-keywords-3 nil
|
||
"Gaudy level highlighting for Objective-C mode.
|
||
See also `objc-font-lock-extra-types'.")
|
||
|
||
;; Regexps written with help from Stephen Peters <speters@us.oracle.com> and
|
||
;; Jacques Duthen Prestataire <duthen@cegelec-red.fr>.
|
||
(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
|
||
;;
|
||
;; The list `c-font-lock-keywords-1' less that for function names.
|
||
(cdr c-font-lock-keywords-1)
|
||
(list
|
||
;;
|
||
;; Fontify compiler directives.
|
||
'("@\\(\\sw+\\)\\>"
|
||
(1 font-lock-keyword-face)
|
||
("\\=[ \t:<(,]*\\(\\sw+\\)" nil nil
|
||
(1 font-lock-function-name-face)))
|
||
;;
|
||
;; Fontify method names and arguments. Oh Lordy!
|
||
;; First, on the same line as the function declaration.
|
||
'("^[+-][ \t]*\\(PRIVATE\\)?[ \t]*\\((\\([^)\n]+\\))\\)?[ \t]*\\(\\sw+\\)"
|
||
(1 font-lock-type-face nil t)
|
||
(3 font-lock-type-face nil t)
|
||
(4 font-lock-function-name-face)
|
||
("\\=[ \t]*\\(\\sw+\\)?:[ \t]*\\((\\([^)\n]+\\))\\)?[ \t]*\\(\\sw+\\)"
|
||
nil nil
|
||
(1 font-lock-function-name-face nil t)
|
||
(3 font-lock-type-face nil t)
|
||
(4 font-lock-variable-name-face)))
|
||
;; Second, on lines following the function declaration.
|
||
'(":" ("^[ \t]*\\(\\sw+\\)?:[ \t]*\\((\\([^)\n]+\\))\\)?[ \t]*\\(\\sw+\\)"
|
||
(beginning-of-line) (end-of-line)
|
||
(1 font-lock-function-name-face nil t)
|
||
(3 font-lock-type-face nil t)
|
||
(4 font-lock-variable-name-face)))
|
||
)))
|
||
|
||
(setq objc-font-lock-keywords-2
|
||
(append objc-font-lock-keywords-1
|
||
(list
|
||
;;
|
||
;; Simple regexps for speed.
|
||
;;
|
||
;; Fontify all type specifiers.
|
||
`(eval .
|
||
(cons (concat "\\<\\(" (,@ objc-type-types) "\\)\\>")
|
||
'font-lock-type-face))
|
||
;;
|
||
;; Fontify all builtin keywords (except case, default and goto; see below).
|
||
(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))
|
||
;; 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)))
|
||
;;
|
||
;; Fontify null object pointers.
|
||
'("\\<[Nn]il\\>" . font-lock-reference-face)
|
||
)))
|
||
|
||
(setq objc-font-lock-keywords-3
|
||
(append objc-font-lock-keywords-2
|
||
;;
|
||
;; More complicated regexps for more complete highlighting for types.
|
||
;; We still have to fontify type specifiers individually, as C is so hairy.
|
||
(list
|
||
;;
|
||
;; Fontify all storage classes and type specifiers, plus their items.
|
||
`(eval .
|
||
(list (concat "\\<\\(" (,@ objc-type-types) "\\)\\>"
|
||
"\\([ \t*&]+\\sw+\\>\\)*")
|
||
;; Fontify each declaration item.
|
||
(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"
|
||
(font-lock-match-c-style-declaration-item-and-skip-to-next
|
||
(goto-char (match-end 1)) nil
|
||
(1 (if (match-beginning 2)
|
||
font-lock-function-name-face
|
||
font-lock-variable-name-face))))
|
||
;;
|
||
;; Fontify anything at beginning of line as a declaration or definition.
|
||
'("^\\(\\sw+\\)\\>\\([ \t*]+\\sw+\\>\\)*"
|
||
(1 font-lock-type-face)
|
||
(font-lock-match-c-style-declaration-item-and-skip-to-next
|
||
(goto-char (or (match-beginning 2) (match-end 1))) nil
|
||
(1 (if (match-beginning 2)
|
||
font-lock-function-name-face
|
||
font-lock-variable-name-face))))
|
||
)))
|
||
)
|
||
|
||
(defvar objc-font-lock-keywords objc-font-lock-keywords-1
|
||
"Default expressions to highlight in Objective-C mode.
|
||
See also `objc-font-lock-extra-types'.")
|
||
|
||
;;; Java.
|
||
|
||
(defconst java-font-lock-keywords-1 nil
|
||
"Subdued level highlighting for Java mode.")
|
||
|
||
(defconst java-font-lock-keywords-2 nil
|
||
"Medium level highlighting for Java mode.
|
||
See also `java-font-lock-extra-types'.")
|
||
|
||
(defconst java-font-lock-keywords-3 nil
|
||
"Gaudy level highlighting for Java mode.
|
||
See also `java-font-lock-extra-types'.")
|
||
|
||
;; Regexps written with help from Fred White <fwhite@bbn.com> and
|
||
;; Anders Lindgren <andersl@csd.uu.se>.
|
||
(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 class names.
|
||
'("\\<\\(class\\)\\>[ \t]*\\(\\sw+\\)?"
|
||
(1 font-lock-type-face) (2 font-lock-function-name-face nil t))
|
||
;;
|
||
;; Fontify package names in import directives.
|
||
'("\\<\\(import\\|package\\)\\>[ \t]*\\(\\sw+\\)?"
|
||
(1 font-lock-keyword-face) (2 font-lock-reference-face nil t))
|
||
))
|
||
|
||
(setq java-font-lock-keywords-2
|
||
(append java-font-lock-keywords-1
|
||
(list
|
||
;;
|
||
;; Fontify all builtin type specifiers.
|
||
(cons (concat "\\<\\(" java-minor-types "\\|" java-major-types "\\)\\>")
|
||
'font-lock-type-face)
|
||
;;
|
||
;; Fontify all builtin keywords (except below).
|
||
(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))
|
||
;; This must come after the one for keywords and targets.
|
||
'(":" ("^[ \t]*\\(\\sw+\\)[ \t]*:"
|
||
(beginning-of-line) (end-of-line)
|
||
(1 font-lock-reference-face)))
|
||
;;
|
||
;; Fontify keywords and types; the first can be followed by a type list.
|
||
(list (concat "\\<\\("
|
||
"implements\\|throws\\|"
|
||
"\\(extends\\|instanceof\\|new\\)"
|
||
"\\)\\>[ \t]*\\(\\sw+\\)?")
|
||
'(1 font-lock-keyword-face) '(3 font-lock-type-face nil t)
|
||
'("\\=[ \t]*,[ \t]*\\(\\sw+\\)"
|
||
(if (match-beginning 2) (goto-char (match-end 2))) nil
|
||
(1 font-lock-type-face)))
|
||
;;
|
||
;; Fontify all constants.
|
||
'("\\<\\(false\\|null\\|true\\)\\>" . font-lock-reference-face)
|
||
;;
|
||
;; Javadoc tags within comments.
|
||
'("@\\(author\\|exception\\|return\\|see\\|version\\)\\>"
|
||
(1 font-lock-reference-face prepend))
|
||
'("@\\(param\\)\\>[ \t]*\\(\\sw+\\)?"
|
||
(1 font-lock-reference-face prepend)
|
||
(2 font-lock-variable-name-face prepend t))
|
||
)))
|
||
|
||
(setq java-font-lock-keywords-3
|
||
(append java-font-lock-keywords-2
|
||
;;
|
||
;; More complicated regexps for more complete highlighting for types.
|
||
;; We still have to fontify type specifiers individually, as Java is hairy.
|
||
(list
|
||
;;
|
||
;; Fontify random types in casts.
|
||
`(eval .
|
||
(list (concat "(\\(" (,@ java-other-types) "\\))"
|
||
"[ \t]*\\(\\sw\\|[\"\(]\\)")
|
||
;; Fontify the type name.
|
||
'(1 font-lock-type-face)))
|
||
;;
|
||
;; Fontify random types immediately followed by an item or items.
|
||
`(eval .
|
||
(list (concat "\\<\\(" (,@ java-other-types) "\\)\\>"
|
||
"\\([ \t]*\\[[ \t]*\\]\\)*"
|
||
"[ \t]*\\sw")
|
||
;; Fontify the type name.
|
||
'(1 font-lock-type-face)))
|
||
`(eval .
|
||
(list (concat "\\<\\(" (,@ java-other-types) "\\)\\>"
|
||
"\\([ \t]*\\[[ \t]*\\]\\)*"
|
||
"\\([ \t]*\\sw\\)")
|
||
;; Fontify each declaration item.
|
||
(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 "\\)\\>"
|
||
"\\([ \t]*\\[[ \t]*\\]\\)*")
|
||
;; Fontify each declaration item.
|
||
'(font-lock-match-c-style-declaration-item-and-skip-to-next
|
||
;; Start and finish with point after the type specifier.
|
||
nil (goto-char (match-end 0))
|
||
;; 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 eventually followed by an item or items.
|
||
(list (concat "\\<\\(" java-major-types "\\)\\>"
|
||
"\\([ \t]+\\sw+\\>"
|
||
"\\([ \t]*\\[[ \t]*\\]\\)*"
|
||
"\\)*")
|
||
;; 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 5) (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))))
|
||
)))
|
||
)
|
||
|
||
(defvar java-font-lock-keywords java-font-lock-keywords-1
|
||
"Default expressions to highlight in Java mode.
|
||
See also `java-font-lock-extra-types'.")
|
||
|
||
;; Install ourselves:
|
||
|
||
(unless (assq 'font-lock-mode minor-mode-alist)
|
||
(push '(font-lock-mode nil) minor-mode-alist))
|
||
|
||
;; Provide ourselves:
|
||
|
||
(provide 'font-lock)
|
||
|
||
;;; font-lock.el ends here
|