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- ;;; fontl-hooks.el --- pre-loaded stuff for font-lock.
-
- ;; Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
- ;; Copyright (C) 1995 Amdahl Corporation.
- ;; Copyright (C) 1996 Ben Wing.
-
- ;; This file is part of XEmacs.
-
- ;; XEmacs is free software; you can redistribute it and/or modify it
- ;; under the terms of the GNU General Public License as published by
- ;; the Free Software Foundation; either version 2, or (at your option)
- ;; any later version.
-
- ;; XEmacs is distributed in the hope that it will be useful, but
- ;; WITHOUT ANY WARRANTY; without even the implied warranty of
- ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- ;; General Public License for more details.
-
- ;; You should have received a copy of the GNU General Public License
- ;; along with XEmacs; see the file COPYING. If not, write to the
- ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- ;; Boston, MA 02111-1307, USA.
-
- ;;; Synched up with: FSF 19.30. (font-lock.el)
-
- ;;; Commentary:
-
- ;; The reason for the existence of this file is so that modes can
- ;; call `font-lock-set-defaults' without worrying about whether
- ;; font-lock is loaded. We don't autoload this from font-lock.el
- ;; because loading font-lock.el automatically turns font-lock on.
-
- ;;; Code:
-
- (defun font-lock-set-defaults (&optional explicit-defaults)
- "Set fontification defaults appropriately for this mode.
- Sets `font-lock-keywords', `font-lock-keywords-only', `font-lock-syntax-table',
- `font-lock-beginning-of-syntax-function' and
- `font-lock-keywords-case-fold-search'.
-
- If `font-lock-defaults' is currently set, it is used. Otherwise, the
- symbol naming the major mode is examined for a `font-lock-defaults'
- property. If that is not present, but a variable `foo-mode-font-lock-keywords'
- is, the value of that variable is used as the default for
- `font-lock-keywords'. Various other backward-compatible behaviors also
- exist -- if you're curious, look at the source.
-
- The value of `font-lock-maximum-decoration' is used to determine which
- set of keywords applies, if more than one exists.
-
- This will also put the buffer into Font Lock mode if any keywords exist
- and if auto-fontification is called for, as determined by
- `font-lock-auto-fontify', `font-lock-mode-enable-list', and
- `font-lock-mode-disable-list'.
-
- Calling this function multiple times in the same buffer is safe -- this
- function keeps track of whether it has already been called in this
- buffer, and does nothing if so. This allows for multiple ways of getting
- Font Lock properly initialized in a buffer, to deal with existing major
- modes that do not call this function. (For example, Font Lock adds this
- function to `find-file-hooks'.)
-
- Major modes that have any font-lock defaults specified should call this
- function during their initialization process, after they have set
- the variable `major-mode'.
-
- If EXPLICIT-DEFAULTS is t, this function will not check whether it
- has already been run in this buffer, and will always do the full
- computation.
-
- If EXPLICIT-DEFAULTS is not nil and not t, it should be something
- that is allowable as a value for `font-lock-defaults' and will be
- used to initialize the Font Lock variables."
-
- (when
- (and
- (featurep 'font-lock)
- (if font-lock-auto-fontify
- (not (memq major-mode font-lock-mode-disable-list))
- (memq major-mode font-lock-mode-enable-list))
- (font-lock-set-defaults-1 explicit-defaults)
- font-lock-keywords)
- (turn-on-font-lock)))
-
- (provide 'fontl-hooks)
-
- ;;; fontl-hooks.el ends here
-