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comparison lisp/packages/fast-lock.el @ 2:ac2d302a0011 r19-15b2

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date Mon, 13 Aug 2007 08:46:35 +0200
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1:c0c6a60d29db 2:ac2d302a0011
1 ;;; fast-lock.el --- Automagic text properties caching for fast Font Lock mode. 1 ;;; fast-lock.el --- Automagic text properties caching for fast Font Lock mode.
2 2
3 ;; Copyright (C) 1994, 1995 Free Software Foundation, Inc. 3 ;; Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
4 4
5 ;; Author: Simon Marshall <simon@gnu.ai.mit.edu> 5 ;; Author: Simon Marshall <simon@gnu.ai.mit.edu>
6 ;; Keywords: faces files 6 ;; Keywords: faces files
7 ;; Version: 3.08 7 ;; Version: 3.10.01
8 8
9 ;; This file is part of XEmacs. 9 ;; This file is part of XEmacs.
10 ;; 10 ;;
11 ;; XEmacs is free software; you can redistribute it and/or modify 11 ;; XEmacs is free software; you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by 12 ;; it under the terms of the GNU General Public License as published by
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of 17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details. 19 ;; GNU General Public License for more details.
20 ;; 20 ;;
21 ;; You should have received a copy of the GNU General Public License 21 ;; You should have received a copy of the GNU General Public License
22 ;; along with XEmacs; if not, write to the Free Software 22 ;; along with XEmacs; see the file COPYING. If not, write to the
23 ;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 24 ;; Boston, MA 02111-1307, USA.
25 ;;; Synched up with: FSF 19.30. 25
26 ;;; Synched up with: FSF 19.34.
26 27
27 ;;; Commentary: 28 ;;; Commentary:
28 29
29 ;; Purpose: 30 ;; Purpose:
30 ;; 31 ;;
36 37
37 ;; Installation: 38 ;; Installation:
38 ;; 39 ;;
39 ;; Put in your ~/.emacs: 40 ;; Put in your ~/.emacs:
40 ;; 41 ;;
41 ;; (add-hook 'font-lock-mode-hook 'turn-on-fast-lock) 42 ;; (setq font-lock-support-mode 'fast-lock-mode)
42 ;; 43 ;;
43 ;; Start up a new Emacs and use font-lock as usual (except that you can use the 44 ;; Start up a new Emacs and use font-lock as usual (except that you can use the
44 ;; so-called "gaudier" fontification regexps on big files without frustration). 45 ;; so-called "gaudier" fontification regexps on big files without frustration).
45 ;; 46 ;;
46 ;; When you visit a file (which has `font-lock-mode' enabled) that has a 47 ;; When you visit a file (which has `font-lock-mode' enabled) that has a
63 ;; M-x fast-lock-submit-bug-report RET 64 ;; M-x fast-lock-submit-bug-report RET
64 65
65 ;; History: 66 ;; History:
66 ;; 67 ;;
67 ;; 0.02--1.00: 68 ;; 0.02--1.00:
68 ;; - Changed name from turbo-prop to fast-lock. Automagic for font-lock only. 69 ;; - Changed name from turbo-prop to fast-lock. Automagic for font-lock only
69 ;; - Made `fast-lock-mode' a minor mode, like G. Dinesh Dutt's fss-mode. 70 ;; - Made `fast-lock-mode' a minor mode, like G. Dinesh Dutt's fss-mode
70 ;; 1.00--1.01: 71 ;; 1.00--1.01:
71 ;; - Turn on `fast-lock-mode' only if `buffer-file-name' or `interactive-p'. 72 ;; - Turn on `fast-lock-mode' only if `buffer-file-name' or `interactive-p'
72 ;; - Made `fast-lock-file-name' use `buffer-name' if `buffer-file-name' is nil. 73 ;; - Made `fast-lock-file-name' use `buffer-name' if `buffer-file-name' is nil
73 ;; - Moved save-all conditions to `fast-lock-save-cache'. 74 ;; - Moved save-all conditions to `fast-lock-save-cache'
74 ;; - Added `fast-lock-save-text-properties' to `kill-buffer-hook'. 75 ;; - Added `fast-lock-save-text-properties' to `kill-buffer-hook'
75 ;; 1.01--2.00: complete rewrite---not worth the space to document. 76 ;; 1.01--2.00: complete rewrite---not worth the space to document
76 ;; - Changed structure of text properties cache and threw out file mod checks. 77 ;; - Changed structure of text properties cache and threw out file mod checks
77 ;; 2.00--2.01: 78 ;; 2.00--2.01:
78 ;; - Made `condition-case' forms understand `quit'. 79 ;; - Made `condition-case' forms understand `quit'.
79 ;; - Made `fast-lock' require `font-lock'. 80 ;; - Made `fast-lock' require `font-lock'
80 ;; - Made `fast-lock-cache-name' chase links (from Ben Liblit). 81 ;; - Made `fast-lock-cache-name' chase links (from Ben Liblit)
81 ;; 2.01--3.00: 82 ;; 2.01--3.00:
82 ;; - Changed structure of cache to include `font-lock-keywords' (from rms). 83 ;; - Changed structure of cache to include `font-lock-keywords' (from rms)
83 ;; - Changed `fast-lock-cache-mechanisms' to `fast-lock-cache-directories'. 84 ;; - Changed `fast-lock-cache-mechanisms' to `fast-lock-cache-directories'
84 ;; - Removed `fast-lock-read-others'. 85 ;; - Removed `fast-lock-read-others'
85 ;; - Made `fast-lock-read-cache' ignore cache owner. 86 ;; - Made `fast-lock-read-cache' ignore cache owner
86 ;; - Made `fast-lock-save-cache-external' create cache directory. 87 ;; - Made `fast-lock-save-cache-external' create cache directory
87 ;; - Made `fast-lock-save-cache-external' save `font-lock-keywords'. 88 ;; - Made `fast-lock-save-cache-external' save `font-lock-keywords'
88 ;; - Made `fast-lock-cache-data' check `font-lock-keywords'. 89 ;; - Made `fast-lock-cache-data' check `font-lock-keywords'
89 ;; 3.00--3.01: incorporated port of 2.00 to Lucid, made by Barry Warsaw. 90 ;; 3.00--3.01: incorporated port of 2.00 to Lucid, made by Barry Warsaw
90 ;; - Package now provides itself. 91 ;; - Package now provides itself
91 ;; - Lucid: Use `font-lock-any-extents-p' for `font-lock-any-properties-p'. 92 ;; - Lucid: Use `font-lock-any-extents-p' for `font-lock-any-properties-p'
92 ;; - Lucid: Use `list-faces' for `face-list'. 93 ;; - Lucid: Use `list-faces' for `face-list'
93 ;; - Lucid: Added `set-text-properties'. 94 ;; - Lucid: Added `set-text-properties'
94 ;; - Lucid: Made `turn-on-fast-lock' pass 1 not t to `fast-lock-mode'. 95 ;; - Lucid: Made `turn-on-fast-lock' pass 1 not t to `fast-lock-mode'
95 ;; - Removed test for `fast-lock-mode' from `fast-lock-read-cache'. 96 ;; - Removed test for `fast-lock-mode' from `fast-lock-read-cache'
96 ;; - Lucid: Added Lucid-specific `fast-lock-get-face-properties'. 97 ;; - Lucid: Added Lucid-specific `fast-lock-get-face-properties'
97 ;; 3.01--3.02: now works with Lucid Emacs, thanks to Barry Warsaw. 98 ;; 3.01--3.02: now works with Lucid Emacs, thanks to Barry Warsaw
98 ;; - Made `fast-lock-cache-name' map ":" to ";" for OS/2 (from Serganova Vera). 99 ;; - Made `fast-lock-cache-name' map ":" to ";" for OS/2 (from Serganova Vera)
99 ;; - Made `fast-lock-cache-name' use abbreviated file name (from Barry Warsaw). 100 ;; - Made `fast-lock-cache-name' use abbreviated file name (from Barry Warsaw)
100 ;; - Lucid: Separated handlers for `error' and `quit' for `condition-case'. 101 ;; - Lucid: Separated handlers for `error' and `quit' for `condition-case'
101 ;; 3.02--3.03: 102 ;; 3.02--3.03:
102 ;; - Changed `fast-lock-save-cache-external' to `fast-lock-save-cache-data'. 103 ;; - Changed `fast-lock-save-cache-external' to `fast-lock-save-cache-data'
103 ;; - Lucid: Added Lucid-specific `fast-lock-set-face-properties'. 104 ;; - Lucid: Added Lucid-specific `fast-lock-set-face-properties'
104 ;; 3.03--3.04: 105 ;; 3.03--3.04:
105 ;; - Corrected `subrp' test of Lucid code. 106 ;; - Corrected `subrp' test of Lucid code
106 ;; - Replaced `font-lock-any-properties-p' with `text-property-not-all'. 107 ;; - Replaced `font-lock-any-properties-p' with `text-property-not-all'
107 ;; - Lucid: Made `fast-lock-set-face-properties' put `text-prop' on extents. 108 ;; - Lucid: Made `fast-lock-set-face-properties' put `text-prop' on extents
108 ;; - Made `fast-lock-cache-directories' a regexp alist (from Colin Rafferty). 109 ;; - Made `fast-lock-cache-directories' a regexp alist (from Colin Rafferty)
109 ;; - Made `fast-lock-cache-directory' to return a usable cache file directory. 110 ;; - Made `fast-lock-cache-directory' to return a usable cache file directory
110 ;; 3.04--3.05: 111 ;; 3.04--3.05:
111 ;; - Lucid: Fix for XEmacs 19.11 `text-property-not-all'. 112 ;; - Lucid: Fix for XEmacs 19.11 `text-property-not-all'
112 ;; - Replaced `subrp' test of Lucid code with `emacs-version' `string-match'. 113 ;; - Replaced `subrp' test of Lucid code with `emacs-version' `string-match'
113 ;; - Made `byte-compile-warnings' omit `unresolved' on compilation. 114 ;; - Made `byte-compile-warnings' omit `unresolved' on compilation
114 ;; - Made `fast-lock-save-cache-data' use a buffer (from Rick Sladkey). 115 ;; - Made `fast-lock-save-cache-data' use a buffer (from Rick Sladkey)
115 ;; - Reverted to old `fast-lock-get-face-properties' (from Rick Sladkey). 116 ;; - Reverted to old `fast-lock-get-face-properties' (from Rick Sladkey)
116 ;; 3.05--3.06: incorporated hack of 3.03, made by Jonathan Stigelman (Stig). 117 ;; 3.05--3.06: incorporated hack of 3.03, made by Jonathan Stigelman (Stig)
117 ;; - Reverted to 3.04 version of `fast-lock-get-face-properties'. 118 ;; - Reverted to 3.04 version of `fast-lock-get-face-properties'
118 ;; - XEmacs: Removed `list-faces' `defalias'. 119 ;; - XEmacs: Removed `list-faces' `defalias'
119 ;; - Made `fast-lock-mode' and `turn-on-fast-lock' succeed `autoload' cookies. 120 ;; - Made `fast-lock-mode' and `turn-on-fast-lock' succeed `autoload' cookies
120 ;; - Added `lazy-lock-submit-bug-report'. 121 ;; - Added `fast-lock-submit-bug-report'
121 ;; - Renamed `fast-lock-save-size' to `fast-lock-minimum-size'. 122 ;; - Renamed `fast-lock-save-size' to `fast-lock-minimum-size'
122 ;; - Made `fast-lock-save-cache' output a message if no save ever attempted. 123 ;; - Made `fast-lock-save-cache' output a message if no save ever attempted
123 ;; - Made `fast-lock-save-cache-data' output a message if save attempted. 124 ;; - Made `fast-lock-save-cache-data' output a message if save attempted
124 ;; - Made `fast-lock-cache-data' output a message if load attempted. 125 ;; - Made `fast-lock-cache-data' output a message if load attempted
125 ;; - Made `fast-lock-save-cache-data' do `condition-case' not `unwind-protect'. 126 ;; - Made `fast-lock-save-cache-data' do `condition-case' not `unwind-protect'
126 ;; - Made `fast-lock-save-cache' and `fast-lock-read-cache' return nothing. 127 ;; - Made `fast-lock-save-cache' and `fast-lock-read-cache' return nothing
127 ;; - Made `fast-lock-save-cache' check `buffer-modified-p' (Stig). 128 ;; - Made `fast-lock-save-cache' check `buffer-modified-p' (Stig)
128 ;; - Added `fast-lock-save-events'. 129 ;; - Added `fast-lock-save-events'
129 ;; - Added `fast-lock-after-save-hook' to `after-save-hook' (Stig). 130 ;; - Added `fast-lock-after-save-hook' to `after-save-hook' (Stig)
130 ;; - Added `fast-lock-kill-buffer-hook' to `kill-buffer-hook'. 131 ;; - Added `fast-lock-kill-buffer-hook' to `kill-buffer-hook'
131 ;; - Changed `fast-lock-save-caches' to `fast-lock-kill-emacs-hook'. 132 ;; - Changed `fast-lock-save-caches' to `fast-lock-kill-emacs-hook'
132 ;; - Added `fast-lock-kill-emacs-hook' to `kill-emacs-hook'. 133 ;; - Added `fast-lock-kill-emacs-hook' to `kill-emacs-hook'
133 ;; - Made `fast-lock-save-cache' check `verify-visited-file-modtime' (Stig). 134 ;; - Made `fast-lock-save-cache' check `verify-visited-file-modtime' (Stig)
134 ;; - Made `visited-file-modtime' be the basis of the timestamp (Stig). 135 ;; - Made `visited-file-modtime' be the basis of the timestamp (Stig)
135 ;; - Made `fast-lock-save-cache-1' and `fast-lock-cache-data' use/reformat it. 136 ;; - Made `fast-lock-save-cache-1' and `fast-lock-cache-data' use/reformat it
136 ;; - Added `fast-lock-cache-filename' to keep track of the cache file name. 137 ;; - Added `fast-lock-cache-filename' to keep track of the cache file name
137 ;; - Added `fast-lock-after-fontify-buffer'. 138 ;; - Added `fast-lock-after-fontify-buffer'
138 ;; - Added `fast-lock-save-faces' list of faces to save (idea from Stig/Tibor). 139 ;; - Added `fast-lock-save-faces' list of faces to save (idea from Stig/Tibor)
139 ;; - Made `fast-lock-get-face-properties' functions use it. 140 ;; - Made `fast-lock-get-face-properties' functions use it
140 ;; - XEmacs: Made `fast-lock-set-face-properties' do extents the Font Lock way. 141 ;; - XEmacs: Made `fast-lock-set-face-properties' do extents the Font Lock way
141 ;; - XEmacs: Removed fix for `text-property-not-all' (19.11 support dropped). 142 ;; - XEmacs: Removed fix for `text-property-not-all' (19.11 support dropped)
142 ;; - Made `fast-lock-mode' ensure `font-lock-mode' is on. 143 ;; - Made `fast-lock-mode' ensure `font-lock-mode' is on
143 ;; - Made `fast-lock-save-cache' do `cdr-safe' not `cdr' (from Dave Foster). 144 ;; - Made `fast-lock-save-cache' do `cdr-safe' not `cdr' (from Dave Foster)
144 ;; - Made `fast-lock-save-cache' do `set-buffer' first (from Dave Foster). 145 ;; - Made `fast-lock-save-cache' do `set-buffer' first (from Dave Foster)
145 ;; - Made `fast-lock-save-cache' loop until saved or quit (from Georg Nikodym). 146 ;; - Made `fast-lock-save-cache' loop until saved or quit (from Georg Nikodym)
146 ;; - Made `fast-lock-cache-data' check `buffer-modified-p'. 147 ;; - Made `fast-lock-cache-data' check `buffer-modified-p'
147 ;; - Made `fast-lock-cache-data' do `font-lock-compile-keywords' if necessary. 148 ;; - Made `fast-lock-cache-data' do `font-lock-compile-keywords' if necessary
148 ;; - XEmacs: Made `font-lock-compile-keywords' `defalias'. 149 ;; - XEmacs: Made `font-lock-compile-keywords' `defalias'
149 ;; 3.06--3.07: 150 ;; 3.06--3.07:
150 ;; - XEmacs: Add `fast-lock-after-fontify-buffer' to the Font Lock hook. 151 ;; - XEmacs: Add `fast-lock-after-fontify-buffer' to the Font Lock hook
151 ;; - Made `fast-lock-cache-name' explain the use of `directory-abbrev-alist'. 152 ;; - Made `fast-lock-cache-name' explain the use of `directory-abbrev-alist'
152 ;; - Made `fast-lock-mode' use `buffer-file-truename' not `buffer-file-name'. 153 ;; - Made `fast-lock-mode' use `buffer-file-truename' not `buffer-file-name'
153 ;; 3.07--3.08: 154 ;; 3.07--3.08:
154 ;; - Made `fast-lock-read-cache' set `fast-lock-cache-filename'. 155 ;; - Made `fast-lock-read-cache' set `fast-lock-cache-filename'
156 ;; 3.08--3.09:
157 ;; - Made `fast-lock-save-cache' cope if `fast-lock-minimum-size' is an a list
158 ;; - Made `fast-lock-mode' respect the value of `font-lock-inhibit-thing-lock'
159 ;; - Added `fast-lock-after-unfontify-buffer'
160 ;; 3.09--3.10:
161 ;; - Rewrite for Common Lisp macros
162 ;; - Made fast-lock.el barf on a crap 8+3 pseudo-OS (Eli Zaretskii help)
163 ;; - XEmacs: Made `add-minor-mode' succeed `autoload' cookie
164 ;; - XEmacs: Made `fast-lock-save-faces' default to `font-lock-face-list'
165 ;; - Made `fast-lock-save-cache' use `font-lock-value-in-major-mode'
166 ;; - Wrap with `save-buffer-state' (Ray Van Tassle report)
167 ;; - Made `fast-lock-mode' wrap `font-lock-support-mode'
168 ;; 3.10--3.11:
155 169
156 (require 'font-lock) 170 (require 'font-lock)
157 171
172 ;; Make sure fast-lock.el is supported.
173 (if (and (eq system-type 'ms-dos) (not (msdos-long-file-names)))
174 (error "`fast-lock' was written for long file name systems"))
175
158 (eval-when-compile 176 (eval-when-compile
159 ;; Shut Emacs' byte-compiler up (cf. stop me getting mail from users). 177 ;;
160 (setq byte-compile-warnings '(free-vars callargs redefine))) 178 ;; We don't do this at the top-level as we only use non-autoloaded macros.
179 (require 'cl)
180 ;;
181 ;; I prefer lazy code---and lazy mode.
182 (setq byte-compile-dynamic t byte-compile-dynamic-docstrings t)
183 ;; But, we make sure that the code is as zippy as can be.
184 (setq byte-optimize t)
185 ;;
186 ;; We use this to preserve or protect things when modifying text properties.
187 (defmacro save-buffer-state (varlist &rest body)
188 "Bind variables according to VARLIST and eval BODY restoring buffer state."
189 (` (let* ((,@ (append varlist
190 '((modified (buffer-modified-p))
191 (inhibit-read-only t) (buffer-undo-list t)
192 before-change-functions after-change-functions
193 deactivate-mark buffer-file-name buffer-file-truename))))
194 (,@ body)
195 (when (and (not modified) (buffer-modified-p))
196 (set-buffer-modified-p nil)))))
197 (put 'save-buffer-state 'lisp-indent-function 1))
161 198
162 (defun fast-lock-submit-bug-report () 199 (defun fast-lock-submit-bug-report ()
163 "Submit via mail a bug report on fast-lock.el." 200 "Submit via mail a bug report on fast-lock.el."
164 (interactive) 201 (interactive)
165 (let ((reporter-prompt-for-summary-p t)) 202 (let ((reporter-prompt-for-summary-p t))
166 (reporter-submit-bug-report "simon@gnu.ai.mit.edu" "fast-lock 3.08" 203 (reporter-submit-bug-report "simon@gnu.ai.mit.edu" "fast-lock 3.10.01"
167 '(fast-lock-cache-directories fast-lock-minimum-size 204 '(fast-lock-cache-directories fast-lock-minimum-size
168 fast-lock-save-others fast-lock-save-events fast-lock-save-faces) 205 fast-lock-save-others fast-lock-save-events fast-lock-save-faces)
169 nil nil 206 nil nil
170 (concat "Hi Si., 207 (concat "Hi Si.,
171 208
172 I want to report a bug. I've read the `Bugs' section of `Info' on Emacs, so I 209 I want to report a bug. I've read the `Bugs' section of `Info' on Emacs, so I
173 know how to make a clear and unambiguous report. To reproduce the bug: 210 know how to make a clear and unambiguous report. To reproduce the bug:
174 211
175 Start a fresh Emacs via `" invocation-name " -no-init-file -no-site-file'. 212 Start a fresh editor via `" invocation-name " -no-init-file -no-site-file'.
176 In the `*scratch*' buffer, evaluate:")))) 213 In the `*scratch*' buffer, evaluate:"))))
177 214
178 ;;;###autoload 215 ;;;###autoload
179 (defvar fast-lock-mode nil) ; for modeline 216 (defvar fast-lock-mode nil)
180 (defvar fast-lock-cache-timestamp nil) ; for saving/reading 217 (defvar fast-lock-cache-timestamp nil) ; for saving/reading
181 (defvar fast-lock-cache-filename nil) ; for deleting 218 (defvar fast-lock-cache-filename nil) ; for deleting
182 219
183 ;; User Variables: 220 ;; User Variables:
184 221
185 (defvar fast-lock-cache-directories '("." "~/.emacs-flc") 222 (defvar fast-lock-cache-directories '("." "~/.emacs-flc")
186 ; - `internal', keep each file's Font Lock cache file in the same file. 223 ; - `internal', keep each file's Font Lock cache file in the same file.
187 ; - `external', keep each file's Font Lock cache file in the same directory. 224 ; - `external', keep each file's Font Lock cache file in the same directory.
188 "Directories in which Font Lock cache files are saved and read. 225 "*Directories in which Font Lock cache files are saved and read.
189 Each item should be either DIR or a cons pair of the form (REGEXP . DIR) where 226 Each item should be either DIR or a cons pair of the form (REGEXP . DIR) where
190 DIR is a directory name (relative or absolute) and REGEXP is a regexp. 227 DIR is a directory name (relative or absolute) and REGEXP is a regexp.
191 228
192 An attempt will be made to save or read Font Lock cache files using these items 229 An attempt will be made to save or read Font Lock cache files using these items
193 until one succeeds (i.e., until a readable or writable one is found). If an 230 until one succeeds (i.e., until a readable or writable one is found). If an
201 238
202 would cause a file's current directory to be used if the file is under your 239 would cause a file's current directory to be used if the file is under your
203 home directory hierarchy, or otherwise the absolute directory `~/.emacs-flc'.") 240 home directory hierarchy, or otherwise the absolute directory `~/.emacs-flc'.")
204 241
205 (defvar fast-lock-minimum-size (* 25 1024) 242 (defvar fast-lock-minimum-size (* 25 1024)
206 "If non-nil, the minimum size for buffers. 243 "*Minimum size of a buffer for cached fontification.
207 Only buffers more than this can have associated Font Lock cache files saved. 244 Only buffers more than this can have associated Font Lock cache files saved.
208 If nil, means size is irrelevant.") 245 If nil, means cache files are never created.
246 If a list, each element should be a cons pair of the form (MAJOR-MODE . SIZE),
247 where MAJOR-MODE is a symbol or t (meaning the default). For example:
248 ((c-mode . 25600) (c++-mode . 25600) (rmail-mode . 1048576))
249 means that the minimum size is 25K for buffers in C or C++ modes, one megabyte
250 for buffers in Rmail mode, and size is irrelevant otherwise.")
209 251
210 (defvar fast-lock-save-events '(kill-buffer kill-emacs) 252 (defvar fast-lock-save-events '(kill-buffer kill-emacs)
211 "A list of events under which caches will be saved. 253 "*Events under which caches will be saved.
212 Valid events are `save-buffer', `kill-buffer' and `kill-emacs'. 254 Valid events are `save-buffer', `kill-buffer' and `kill-emacs'.
213 If concurrent editing sessions use the same associated cache file for a file's 255 If concurrent editing sessions use the same associated cache file for a file's
214 buffer, then you should add `save-buffer' to this list.") 256 buffer, then you should add `save-buffer' to this list.")
215 257
216 (defvar fast-lock-save-others t 258 (defvar fast-lock-save-others t
217 "If non-nil, save Font Lock cache files irrespective of file owner. 259 "*If non-nil, save Font Lock cache files irrespective of file owner.
218 If nil, means only buffer files known to be owned by you can have associated 260 If nil, means only buffer files known to be owned by you can have associated
219 Font Lock cache files saved. Ownership may be unknown for networked files.") 261 Font Lock cache files saved. Ownership may be unknown for networked files.")
220 262
221 (defvar fast-lock-save-faces 263 (defvar fast-lock-save-faces
222 ;; Since XEmacs uses extents for everything, we have to pick the right ones. 264 (when (save-match-data (string-match "XEmacs" (emacs-version)))
223 ;; In XEmacs 19.13 we can't identify which text properties are Font Lock's. 265 ;; XEmacs uses extents for everything, so we have to pick the right ones.
224 (if (save-match-data (string-match "XEmacs" (emacs-version))) 266 font-lock-face-list)
225 '(font-lock-string-face font-lock-doc-string-face font-lock-type-face 267 "Faces that will be saved in a Font Lock cache file.
226 font-lock-function-name-face font-lock-comment-face
227 font-lock-keyword-face font-lock-preprocessor-face)
228 ;; For Emacs 19.30 I don't think this is generally necessary.
229 nil)
230 "A list of faces that will be saved in a Font Lock cache file.
231 If nil, means information for all faces will be saved.") 268 If nil, means information for all faces will be saved.")
232 269
233 ;; User Functions: 270 ;; User Functions:
234 271
235 ;;;###autoload 272 ;;;###autoload
236 (defun fast-lock-mode (&optional arg) 273 (defun fast-lock-mode (&optional arg)
237 "Toggle Fast Lock mode. 274 "Toggle Fast Lock mode.
238 With arg, turn Fast Lock mode on if and only if arg is positive and the buffer 275 With arg, turn Fast Lock mode on if and only if arg is positive and the buffer
239 is associated with a file. Enable it automatically in your `~/.emacs' by: 276 is associated with a file. Enable it automatically in your `~/.emacs' by:
240 277
241 (add-hook 'font-lock-mode-hook 'turn-on-fast-lock) 278 (setq font-lock-support-mode 'fast-lock-mode)
242 279
243 If Fast Lock mode is enabled, and the current buffer does not contain any text 280 If Fast Lock mode is enabled, and the current buffer does not contain any text
244 properties, any associated Font Lock cache is used if its timestamp matches the 281 properties, any associated Font Lock cache is used if its timestamp matches the
245 buffer's file, and its `font-lock-keywords' match those that you are using. 282 buffer's file, and its `font-lock-keywords' match those that you are using.
246 283
262 (interactive "P") 299 (interactive "P")
263 ;; Only turn on if we are visiting a file. We could use `buffer-file-name', 300 ;; Only turn on if we are visiting a file. We could use `buffer-file-name',
264 ;; but many packages temporarily wrap that to nil when doing their own thing. 301 ;; but many packages temporarily wrap that to nil when doing their own thing.
265 (set (make-local-variable 'fast-lock-mode) 302 (set (make-local-variable 'fast-lock-mode)
266 (and buffer-file-truename 303 (and buffer-file-truename
304 (not (memq 'fast-lock-mode font-lock-inhibit-thing-lock))
267 (if arg (> (prefix-numeric-value arg) 0) (not fast-lock-mode)))) 305 (if arg (> (prefix-numeric-value arg) 0) (not fast-lock-mode))))
268 (if (and fast-lock-mode (not font-lock-mode)) 306 (if (and fast-lock-mode (not font-lock-mode))
269 ;; Turned on `fast-lock-mode' rather than using `font-lock-mode-hook'. 307 ;; Turned on `fast-lock-mode' rather than `font-lock-mode'.
270 (progn 308 (let ((font-lock-support-mode 'fast-lock-mode))
271 (add-hook 'font-lock-mode-hook 'turn-on-fast-lock)
272 (font-lock-mode t)) 309 (font-lock-mode t))
273 ;; Let's get down to business. 310 ;; Let's get down to business.
274 (set (make-local-variable 'fast-lock-cache-timestamp) nil) 311 (set (make-local-variable 'fast-lock-cache-timestamp) nil)
275 (set (make-local-variable 'fast-lock-cache-filename) nil) 312 (set (make-local-variable 'fast-lock-cache-filename) nil)
276 (if (and fast-lock-mode (not font-lock-fontified)) 313 (when (and fast-lock-mode (not font-lock-fontified))
277 (fast-lock-read-cache)))) 314 (fast-lock-read-cache))))
278 315
279 (defun fast-lock-read-cache () 316 (defun fast-lock-read-cache ()
280 "Read the Font Lock cache for the current buffer. 317 "Read the Font Lock cache for the current buffer.
281 318
282 The following criteria must be met for a Font Lock cache file to be read: 319 The following criteria must be met for a Font Lock cache file to be read:
293 (fontified font-lock-fontified)) 330 (fontified font-lock-fontified))
294 (set (make-local-variable 'font-lock-fontified) nil) 331 (set (make-local-variable 'font-lock-fontified) nil)
295 ;; Keep trying directories until fontification is turned off. 332 ;; Keep trying directories until fontification is turned off.
296 (while (and directories (not font-lock-fontified)) 333 (while (and directories (not font-lock-fontified))
297 (let ((directory (fast-lock-cache-directory (car directories) nil))) 334 (let ((directory (fast-lock-cache-directory (car directories) nil)))
298 (if (not directory) 335 (condition-case nil
299 nil 336 (when directory
300 (setq fast-lock-cache-filename (fast-lock-cache-name directory)) 337 (setq fast-lock-cache-filename (fast-lock-cache-name directory))
301 (condition-case nil 338 (when (file-readable-p fast-lock-cache-filename)
302 (if (file-readable-p fast-lock-cache-filename) 339 (load fast-lock-cache-filename t t t)))
303 (load fast-lock-cache-filename t t t)) 340 (error nil) (quit nil))
304 (error nil) (quit nil)))
305 (setq directories (cdr directories)))) 341 (setq directories (cdr directories))))
306 ;; Unset `fast-lock-cache-filename', and restore `font-lock-fontified', if 342 ;; Unset `fast-lock-cache-filename', and restore `font-lock-fontified', if
307 ;; we don't use a cache. (Note that `fast-lock-cache-data' sets the value 343 ;; we don't use a cache. (Note that `fast-lock-cache-data' sets the value
308 ;; of `fast-lock-cache-timestamp'.) 344 ;; of `fast-lock-cache-timestamp'.)
309 (set-buffer-modified-p modified) 345 (set-buffer-modified-p modified)
310 (if (not font-lock-fontified) 346 (unless font-lock-fontified
311 (setq fast-lock-cache-filename nil font-lock-fontified fontified)))) 347 (setq fast-lock-cache-filename nil font-lock-fontified fontified))))
312 348
313 (defun fast-lock-save-cache (&optional buffer) 349 (defun fast-lock-save-cache (&optional buffer)
314 "Save the Font Lock cache of BUFFER or the current buffer. 350 "Save the Font Lock cache of BUFFER or the current buffer.
315 351
316 The following criteria must be met for a Font Lock cache file to be saved: 352 The following criteria must be met for a Font Lock cache file to be saved:
325 - Criteria imposed by `fast-lock-cache-directories'. 361 - Criteria imposed by `fast-lock-cache-directories'.
326 362
327 See `fast-lock-mode'." 363 See `fast-lock-mode'."
328 (interactive) 364 (interactive)
329 (save-excursion 365 (save-excursion
330 (and buffer (set-buffer buffer)) 366 (when buffer
331 (let ((file-timestamp (visited-file-modtime)) (saved nil)) 367 (set-buffer buffer))
332 (if (and fast-lock-mode 368 (let ((min-size (font-lock-value-in-major-mode fast-lock-minimum-size))
333 ;; 369 (file-timestamp (visited-file-modtime)) (saved nil))
334 ;; "Only save if the buffer matches the file, the file has 370 (when (and fast-lock-mode
335 ;; changed, and it was changed by the current emacs session." 371 ;;
336 ;; 372 ;; "Only save if the buffer matches the file, the file has
337 ;; Only save if the buffer is not modified, 373 ;; changed, and it was changed by the current emacs session."
338 ;; (i.e., so we don't save for something not on disk) 374 ;;
339 (not (buffer-modified-p)) 375 ;; Only save if the buffer is not modified,
340 ;; and the file's timestamp is the same as the buffer's, 376 ;; (i.e., so we don't save for something not on disk)
341 ;; (i.e., someone else hasn't written the file in the meantime) 377 (not (buffer-modified-p))
342 (verify-visited-file-modtime (current-buffer)) 378 ;; and the file's timestamp is the same as the buffer's,
343 ;; and the file's timestamp is different from the cache's. 379 ;; (i.e., someone else hasn't written the file in the meantime)
344 ;; (i.e., a save has occurred since the cache was read) 380 (verify-visited-file-modtime (current-buffer))
345 (not (equal fast-lock-cache-timestamp file-timestamp)) 381 ;; and the file's timestamp is different from the cache's.
346 ;; 382 ;; (i.e., a save has occurred since the cache was read)
347 ;; Only save if user's restrictions are satisfied. 383 (not (equal fast-lock-cache-timestamp file-timestamp))
348 (or (not fast-lock-minimum-size) 384 ;;
349 (<= fast-lock-minimum-size (buffer-size))) 385 ;; Only save if user's restrictions are satisfied.
350 (or fast-lock-save-others 386 (and min-size (>= (buffer-size) min-size))
351 (eq (user-uid) (nth 2 (file-attributes buffer-file-name)))) 387 (or fast-lock-save-others
352 ;; 388 (eq (user-uid) (nth 2 (file-attributes buffer-file-name))))
353 ;; Only save if there are `face' properties to save. 389 ;;
354 (text-property-not-all (point-min) (point-max) 'face nil)) 390 ;; Only save if there are `face' properties to save.
355 ;; Try each directory until we manage to save or the user quits. 391 (text-property-not-all (point-min) (point-max) 'face nil))
356 (let ((directories fast-lock-cache-directories)) 392 ;;
357 (while (and directories (memq saved '(nil error))) 393 ;; Try each directory until we manage to save or the user quits.
358 (let* ((dir (fast-lock-cache-directory (car directories) t)) 394 (let ((directories fast-lock-cache-directories))
359 (file (and dir (fast-lock-cache-name dir)))) 395 (while (and directories (memq saved '(nil error)))
360 (if (and file (file-writable-p file)) 396 (let* ((dir (fast-lock-cache-directory (car directories) t))
361 (setq saved (fast-lock-save-cache-1 file file-timestamp))) 397 (file (and dir (fast-lock-cache-name dir))))
362 (setq directories (cdr directories))))))))) 398 (when (and file (file-writable-p file))
399 (setq saved (fast-lock-save-cache-1 file file-timestamp)))
400 (setq directories (cdr directories)))))))))
363 401
364 ;;;###autoload 402 ;;;###autoload
365 (defun turn-on-fast-lock () 403 (defun turn-on-fast-lock ()
366 "Unconditionally turn on Fast Lock mode." 404 "Unconditionally turn on Fast Lock mode."
367 (fast-lock-mode t)) 405 (fast-lock-mode t))
368 406
369 ;;; API Functions: 407 ;;; API Functions:
370 408
371 (defun fast-lock-after-fontify-buffer () 409 (defun fast-lock-after-fontify-buffer ()
372 ;; Delete the Font Lock cache file used to restore fontification, if any. 410 ;; Delete the Font Lock cache file used to restore fontification, if any.
373 (if fast-lock-cache-filename 411 (when fast-lock-cache-filename
374 (if (file-writable-p fast-lock-cache-filename) 412 (if (file-writable-p fast-lock-cache-filename)
375 (delete-file fast-lock-cache-filename) 413 (delete-file fast-lock-cache-filename)
376 (message "File %s font lock cache cannot be deleted" (buffer-name)))) 414 (message "File %s font lock cache cannot be deleted" (buffer-name))))
377 ;; Flag so that a cache will be saved later even if the file is never saved. 415 ;; Flag so that a cache will be saved later even if the file is never saved.
378 (setq fast-lock-cache-timestamp nil)) 416 (setq fast-lock-cache-timestamp nil))
417
418 (defalias 'fast-lock-after-unfontify-buffer
419 'ignore)
379 420
380 ;; Miscellaneous Functions: 421 ;; Miscellaneous Functions:
381 422
382 (defun fast-lock-after-save-hook () 423 (defun fast-lock-save-cache-after-save-file ()
383 ;; Do `fast-lock-save-cache' if `save-buffer' is on `fast-lock-save-events'. 424 ;; Do `fast-lock-save-cache' if `save-buffer' is on `fast-lock-save-events'.
384 (if (memq 'save-buffer fast-lock-save-events) 425 (when (memq 'save-buffer fast-lock-save-events)
385 (fast-lock-save-cache))) 426 (fast-lock-save-cache)))
386 427
387 (defun fast-lock-kill-buffer-hook () 428 (defun fast-lock-save-cache-before-kill-buffer ()
388 ;; Do `fast-lock-save-cache' if `kill-buffer' is on `fast-lock-save-events'. 429 ;; Do `fast-lock-save-cache' if `kill-buffer' is on `fast-lock-save-events'.
389 (if (memq 'kill-buffer fast-lock-save-events) 430 (when (memq 'kill-buffer fast-lock-save-events)
390 (fast-lock-save-cache))) 431 (fast-lock-save-cache)))
391 432
392 (defun fast-lock-kill-emacs-hook () 433 (defun fast-lock-save-caches-before-kill-emacs ()
393 ;; Do `fast-lock-save-cache's if `kill-emacs' is on `fast-lock-save-events'. 434 ;; Do `fast-lock-save-cache's if `kill-emacs' is on `fast-lock-save-events'.
394 (if (memq 'kill-emacs fast-lock-save-events) 435 (when (memq 'kill-emacs fast-lock-save-events)
395 (mapcar 'fast-lock-save-cache (buffer-list)))) 436 (mapcar 'fast-lock-save-cache (buffer-list))))
396 437
397 (defun fast-lock-cache-directory (directory create) 438 (defun fast-lock-cache-directory (directory create)
398 "Return usable directory based on DIRECTORY. 439 "Return usable directory based on DIRECTORY.
399 Returns nil if the directory does not exist, or, if CREATE non-nil, cannot be 440 Returns nil if the directory does not exist, or, if CREATE non-nil, cannot be
400 created. DIRECTORY may be a string or a cons pair of the form (REGEXP . DIR). 441 created. DIRECTORY may be a string or a cons pair of the form (REGEXP . DIR).
408 directory) 449 directory)
409 (t 450 (t
410 ;; A directory iff the file name matches the regexp. 451 ;; A directory iff the file name matches the regexp.
411 (let ((bufile (expand-file-name buffer-file-truename)) 452 (let ((bufile (expand-file-name buffer-file-truename))
412 (case-fold-search nil)) 453 (case-fold-search nil))
413 (if (save-match-data (string-match (car directory) bufile)) 454 (when (save-match-data (string-match (car directory) bufile))
414 (cdr directory))))))) 455 (cdr directory)))))))
415 (cond ((not dir) 456 (cond ((not dir)
416 nil) 457 nil)
417 ((file-accessible-directory-p dir) 458 ((file-accessible-directory-p dir)
418 dir) 459 dir)
419 (create 460 (create
476 (write-region (point-min) (point-max) file nil 'quietly) 517 (write-region (point-min) (point-max) file nil 'quietly)
477 (setq fast-lock-cache-timestamp timestamp 518 (setq fast-lock-cache-timestamp timestamp
478 fast-lock-cache-filename file)) 519 fast-lock-cache-filename file))
479 (error (setq saved 'error)) (quit (setq saved 'quit))) 520 (error (setq saved 'error)) (quit (setq saved 'quit)))
480 (kill-buffer tpbuf) 521 (kill-buffer tpbuf)
481 (message "Saving %s font lock cache... %s." buname 522 (message "Saving %s font lock cache...%s" buname
482 (cond ((eq saved 'error) "failed") 523 (cond ((eq saved 'error) "failed")
483 ((eq saved 'quit) "aborted") 524 ((eq saved 'quit) "aborted")
484 (t "done"))) 525 (t "done")))
485 ;; We return non-nil regardless of whether a failure occurred. 526 ;; We return non-nil regardless of whether a failure occurred.
486 saved)) 527 saved))
487 528
488 (defun fast-lock-cache-data (version timestamp keywords properties 529 (defun fast-lock-cache-data (version timestamp keywords properties
489 &rest ignored) 530 &rest ignored)
490 ;; Change from (HIGH LOW) for back compatibility. Remove for version 3! 531 ;; Change from (HIGH LOW) for back compatibility. Remove for version 3!
491 (if (consp (cdr-safe timestamp)) (setcdr timestamp (nth 1 timestamp))) 532 (when (consp (cdr-safe timestamp))
533 (setcdr timestamp (nth 1 timestamp)))
492 ;; Compile KEYWORDS and `font-lock-keywords' in case one is and one isn't. 534 ;; Compile KEYWORDS and `font-lock-keywords' in case one is and one isn't.
493 (let ((current font-lock-keywords)) 535 (let ((current font-lock-keywords))
494 (setq keywords (font-lock-compile-keywords keywords) 536 (setq keywords (font-lock-compile-keywords keywords)
495 font-lock-keywords (font-lock-compile-keywords current))) 537 font-lock-keywords (font-lock-compile-keywords current)))
496 ;; Use the Font Lock cache PROPERTIES if we're using cache VERSION format 2, 538 ;; Use the Font Lock cache PROPERTIES if we're using cache VERSION format 2,
505 (setq loaded nil) 547 (setq loaded nil)
506 (message "Loading %s font lock cache..." buname) 548 (message "Loading %s font lock cache..." buname)
507 (condition-case nil 549 (condition-case nil
508 (fast-lock-set-face-properties properties) 550 (fast-lock-set-face-properties properties)
509 (error (setq loaded 'error)) (quit (setq loaded 'quit))) 551 (error (setq loaded 'error)) (quit (setq loaded 'quit)))
510 (message "Loading %s font lock cache... %s." buname 552 (message "Loading %s font lock cache...%s" buname
511 (cond ((eq loaded 'error) "failed") 553 (cond ((eq loaded 'error) "failed")
512 ((eq loaded 'quit) "aborted") 554 ((eq loaded 'quit) "aborted")
513 (t "done")))) 555 (t "done"))))
514 (setq font-lock-fontified (eq loaded t) 556 (setq font-lock-fontified (eq loaded t)
515 fast-lock-cache-timestamp (and (eq loaded t) timestamp)))) 557 fast-lock-cache-timestamp (and (eq loaded t) timestamp))))
550 ;; Make a list of start/end regions with `face' property face. 592 ;; Make a list of start/end regions with `face' property face.
551 (while (setq start (text-property-any end limit 'face face)) 593 (while (setq start (text-property-any end limit 'face face))
552 (setq end (or (text-property-not-all start limit 'face face) limit) 594 (setq end (or (text-property-not-all start limit 'face face) limit)
553 regions (cons start (cons end regions)))) 595 regions (cons start (cons end regions))))
554 ;; Add `face' face's regions, if any, to properties. 596 ;; Add `face' face's regions, if any, to properties.
555 (if regions (setq properties (cons (cons face regions) properties)))) 597 (when regions
598 (push (cons face regions) properties)))
556 properties))) 599 properties)))
557 600
558 (defun fast-lock-set-face-properties (properties) 601 (defun fast-lock-set-face-properties (properties)
559 "Set all `face' text properties to PROPERTIES in the current buffer. 602 "Set all `face' text properties to PROPERTIES in the current buffer.
560 Any existing `face' text properties are removed first. Leaves buffer modified. 603 Any existing `face' text properties are removed first.
561 See `fast-lock-get-face-properties' for the format of PROPERTIES." 604 See `fast-lock-get-face-properties' for the format of PROPERTIES."
562 (save-restriction 605 (save-buffer-state (plist regions)
563 (widen) 606 (save-restriction
564 (font-lock-unfontify-region (point-min) (point-max)) 607 (widen)
565 (while properties 608 (font-lock-unfontify-region (point-min) (point-max))
566 (let ((plist (list 'face (car (car properties)))) 609 (while properties
567 (regions (cdr (car properties)))) 610 (setq plist (list 'face (car (car properties)))
611 regions (cdr (car properties))
612 properties (cdr properties))
568 ;; Set the `face' property for each start/end region. 613 ;; Set the `face' property for each start/end region.
569 (while regions 614 (while regions
570 (set-text-properties (nth 0 regions) (nth 1 regions) plist) 615 (set-text-properties (nth 0 regions) (nth 1 regions) plist)
571 (setq regions (nthcdr 2 regions))) 616 (setq regions (nthcdr 2 regions)))))))
572 (setq properties (cdr properties))))))
573 617
574 ;; Functions for XEmacs: 618 ;; Functions for XEmacs:
575 619
576 (if (save-match-data (string-match "XEmacs" (emacs-version))) 620 (when (save-match-data (string-match "XEmacs" (emacs-version)))
577 ;; It would be better to use XEmacs 19.12's `map-extents' over extents with 621 ;;
578 ;; `font-lock' property, but `face' properties are on different extents. 622 ;; It would be better to use XEmacs' `map-extents' over extents with a
579 (defun fast-lock-get-face-properties () 623 ;; `font-lock' property, but `face' properties are on different extents.
580 "Return a list of all `face' text properties in the current buffer. 624 (defun fast-lock-get-face-properties ()
625 "Return a list of all `face' text properties in the current buffer.
581 Each element of the list is of the form (VALUE START1 END1 START2 END2 ...) 626 Each element of the list is of the form (VALUE START1 END1 START2 END2 ...)
582 where VALUE is a `face' property value and STARTx and ENDx are positions. 627 where VALUE is a `face' property value and STARTx and ENDx are positions.
583 Only those `face' VALUEs in `fast-lock-save-faces' are returned." 628 Only those `face' VALUEs in `fast-lock-save-faces' are returned."
584 (save-restriction 629 (save-restriction
585 (widen) 630 (widen)
586 (let ((properties ()) cell) 631 (let ((properties ()) cell)
587 (map-extents 632 (map-extents
588 (function 633 (function (lambda (extent ignore)
589 (lambda (extent ignore) 634 (let ((value (extent-face extent)))
590 (let ((value (extent-face extent))) 635 ;; We're only interested if it's one of `fast-lock-save-faces'.
591 ;; We're only interested if it's one of `fast-lock-save-faces'. 636 (when (and value (or (null fast-lock-save-faces)
592 (if (and value (or (null fast-lock-save-faces)
593 (memq value fast-lock-save-faces))) 637 (memq value fast-lock-save-faces)))
594 (let ((start (extent-start-position extent)) 638 (let ((start (extent-start-position extent))
595 (end (extent-end-position extent))) 639 (end (extent-end-position extent)))
596 ;; Make or add to existing list of regions with the same 640 ;; Make or add to existing list of regions with the same
597 ;; `face' property value. 641 ;; `face' property value.
598 (if (setq cell (assq value properties)) 642 (if (setq cell (assq value properties))
599 (setcdr cell (cons start (cons end (cdr cell)))) 643 (setcdr cell (cons start (cons end (cdr cell))))
600 (setq properties (cons (list value start end) 644 (push (list value start end) properties))))
601 properties))))) 645 ;; Return nil to keep `map-extents' going.
602 ;; Return nil to keep `map-extents' going. 646 nil))))
603 nil)))) 647 properties)))
604 properties)))) 648 ;;
605 649 ;; Make extents just like XEmacs' font-lock.el does.
606 (if (save-match-data (string-match "XEmacs" (emacs-version))) 650 (defun fast-lock-set-face-properties (properties)
607 ;; Make extents just like XEmacs's font-lock.el does. 651 "Set all `face' text properties to PROPERTIES in the current buffer.
608 (defun fast-lock-set-face-properties (properties)
609 "Set all `face' text properties to PROPERTIES in the current buffer.
610 Any existing `face' text properties are removed first. 652 Any existing `face' text properties are removed first.
611 See `fast-lock-get-face-properties' for the format of PROPERTIES." 653 See `fast-lock-get-face-properties' for the format of PROPERTIES."
612 (save-restriction 654 (save-restriction
613 (widen) 655 (widen)
614 (font-lock-unfontify-region (point-min) (point-max)) 656 (font-lock-unfontify-region (point-min) (point-max))
615 (while properties 657 (while properties
616 (let ((face (car (car properties))) 658 (let ((face (car (car properties)))
617 (regions (cdr (car properties)))) 659 (regions (cdr (car properties))))
618 ;; Set the `face' property, etc., for each start/end region. 660 ;; Set the `face' property, etc., for each start/end region.
619 (while regions 661 (while regions
620 (font-lock-set-face (nth 0 regions) (nth 1 regions) face) 662 (font-lock-set-face (nth 0 regions) (nth 1 regions) face)
621 (setq regions (nthcdr 2 regions))) 663 (setq regions (nthcdr 2 regions)))
622 (setq properties (cdr properties))))))) 664 (setq properties (cdr properties))))))
623 665 ;;
624 (if (save-match-data (string-match "XEmacs" (emacs-version))) 666 ;; XEmacs 19.12 font-lock.el's `font-lock-fontify-buffer' runs a hook.
625 ;; XEmacs 19.12 font-lock.el's `font-lock-fontify-buffer' runs a hook. 667 (add-hook 'font-lock-after-fontify-buffer-hook
626 (add-hook 'font-lock-after-fontify-buffer-hook 668 'fast-lock-after-fontify-buffer))
627 'fast-lock-after-fontify-buffer)) 669
628 670 (unless (boundp 'font-lock-inhibit-thing-lock)
629 (or (fboundp 'font-lock-compile-keywords) 671 (defvar font-lock-inhibit-thing-lock nil
630 (defalias 'font-lock-compile-keywords 'identity)) 672 "List of Font Lock mode related modes that should not be turned on."))
673
674 (unless (fboundp 'font-lock-value-in-major-mode)
675 (defun font-lock-value-in-major-mode (alist)
676 ;; Return value in ALIST for `major-mode'.
677 (if (consp alist)
678 (cdr (or (assq major-mode alist) (assq t alist)))
679 alist)))
680
681 (unless (fboundp 'font-lock-compile-keywords)
682 (defalias 'font-lock-compile-keywords 'identity))
631 683
632 ;; Install ourselves: 684 ;; Install ourselves:
633 685
634 ;; We don't install ourselves on `font-lock-mode-hook' as packages with similar 686 (add-hook 'after-save-hook 'fast-lock-save-cache-after-save-file)
635 ;; functionality exist, and fast-lock.el should be dumpable without forcing 687 (add-hook 'kill-buffer-hook 'fast-lock-save-cache-before-kill-buffer)
636 ;; people to use caches or making it difficult for people to use alternatives. 688 (add-hook 'kill-emacs-hook 'fast-lock-save-caches-before-kill-emacs)
637 (add-hook 'after-save-hook 'fast-lock-after-save-hook) 689
638 (add-hook 'kill-buffer-hook 'fast-lock-kill-buffer-hook)
639 (add-hook 'kill-emacs-hook 'fast-lock-kill-emacs-hook)
640
641 ;; Maybe save on the modeline?
642 ;;(setcdr (assq 'font-lock-mode minor-mode-alist) '(" Fast"))
643
644 ;(or (assq 'fast-lock-mode minor-mode-alist)
645 ; (setq minor-mode-alist (cons '(fast-lock-mode " Fast") minor-mode-alist)))
646
647 ;; XEmacs change: do it the right way. This works with modeline mousing.
648 ;;;###autoload 690 ;;;###autoload
649 (add-minor-mode 'fast-lock-mode " Fast") 691 (if (fboundp 'add-minor-mode) (add-minor-mode 'fast-lock-mode nil))
692 ;;;###dont-autoload
693 (unless (assq 'fast-lock-mode minor-mode-alist)
694 (setq minor-mode-alist (append minor-mode-alist '((fast-lock-mode nil)))))
650 695
651 ;; Provide ourselves: 696 ;; Provide ourselves:
652 697
653 (provide 'fast-lock) 698 (provide 'fast-lock)
654 699