|
209
|
1 ;;; custom.el -- Tools for declaring and initializing options.
|
|
|
2
|
|
|
3 ;; Copyright (C) 1996, 1997 Free Software Foundation, Inc.
|
|
|
4
|
|
|
5 ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
|
|
|
6 ;; Maintainer: Hrvoje Niksic <hniksic@srce.hr>
|
|
|
7 ;; Keywords: help, faces, dumped
|
|
|
8 ;; Version: 1.9960-x
|
|
|
9 ;; X-URL: http://www.dina.kvl.dk/~abraham/custom/
|
|
|
10
|
|
|
11 ;; This file is part of XEmacs.
|
|
|
12
|
|
|
13 ;; XEmacs is free software; you can redistribute it and/or modify
|
|
|
14 ;; it under the terms of the GNU General Public License as published by
|
|
|
15 ;; the Free Software Foundation; either version 2, or (at your option)
|
|
|
16 ;; any later version.
|
|
|
17
|
|
|
18 ;; XEmacs is distributed in the hope that it will be useful,
|
|
|
19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
21 ;; GNU General Public License for more details.
|
|
|
22
|
|
|
23 ;; You should have received a copy of the GNU General Public License
|
|
|
24 ;; along with XEmacs; see the file COPYING. If not, write to the
|
|
|
25 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
|
26 ;; Boston, MA 02111-1307, USA.
|
|
|
27
|
|
|
28 ;;; Commentary:
|
|
|
29
|
|
|
30 ;; This file is dumped with XEmacs.
|
|
|
31
|
|
|
32 ;; This file only contain the code needed to declare and initialize
|
|
|
33 ;; user options. The code to customize options is autoloaded from
|
|
|
34 ;; `cus-edit.el'.
|
|
|
35 ;;
|
|
|
36 ;; The code implementing face declarations is in `cus-face.el'
|
|
|
37
|
|
|
38 ;;; Code:
|
|
|
39
|
|
|
40 (require 'widget)
|
|
|
41
|
|
|
42 (defvar custom-define-hook nil
|
|
|
43 ;; Customize information for this option is in `cus-edit.el'.
|
|
|
44 "Hook called after defining each customize option.")
|
|
|
45
|
|
|
46 ;;; The `defcustom' Macro.
|
|
|
47
|
|
|
48 (defun custom-initialize-default (symbol value)
|
|
|
49 "Initialize SYMBOL with VALUE.
|
|
|
50 This will do nothing if symbol already has a default binding.
|
|
|
51 Otherwise, if symbol has a `saved-value' property, it will evaluate
|
|
|
52 the car of that and used as the default binding for symbol.
|
|
|
53 Otherwise, VALUE will be evaluated and used as the default binding for
|
|
|
54 symbol."
|
|
|
55 (unless (default-boundp symbol)
|
|
|
56 ;; Use the saved value if it exists, otherwise the standard setting.
|
|
|
57 (set-default symbol (if (get symbol 'saved-value)
|
|
|
58 (eval (car (get symbol 'saved-value)))
|
|
|
59 (eval value)))))
|
|
|
60
|
|
|
61 (defun custom-initialize-set (symbol value)
|
|
|
62 "Initialize SYMBOL with VALUE.
|
|
|
63 Like `custom-initialize-default', but use the function specified by
|
|
|
64 `:set' to initialize SYMBOL."
|
|
|
65 (unless (default-boundp symbol)
|
|
|
66 (funcall (or (get symbol 'custom-set) 'set-default)
|
|
|
67 symbol
|
|
|
68 (if (get symbol 'saved-value)
|
|
|
69 (eval (car (get symbol 'saved-value)))
|
|
|
70 (eval value)))))
|
|
|
71
|
|
|
72 (defun custom-initialize-reset (symbol value)
|
|
|
73 "Initialize SYMBOL with VALUE.
|
|
|
74 Like `custom-initialize-set', but use the function specified by
|
|
|
75 `:get' to reinitialize SYMBOL if it is already bound."
|
|
|
76 (funcall (or (get symbol 'custom-set) 'set-default)
|
|
|
77 symbol
|
|
|
78 (cond ((default-boundp symbol)
|
|
|
79 (funcall (or (get symbol 'custom-get) 'default-value)
|
|
|
80 symbol))
|
|
|
81 ((get symbol 'saved-value)
|
|
|
82 (eval (car (get symbol 'saved-value))))
|
|
|
83 (t
|
|
|
84 (eval value)))))
|
|
|
85
|
|
|
86 (defun custom-initialize-changed (symbol value)
|
|
|
87 "Initialize SYMBOL with VALUE.
|
|
|
88 Like `custom-initialize-reset', but only use the `:set' function if the
|
|
|
89 not using the standard setting. Otherwise, use the `set-default'."
|
|
|
90 (cond ((default-boundp symbol)
|
|
|
91 (funcall (or (get symbol 'custom-set) 'set-default)
|
|
|
92 symbol
|
|
|
93 (funcall (or (get symbol 'custom-get) 'default-value)
|
|
|
94 symbol)))
|
|
|
95 ((get symbol 'saved-value)
|
|
|
96 (funcall (or (get symbol 'custom-set) 'set-default)
|
|
|
97 symbol
|
|
|
98 (eval (car (get symbol 'saved-value)))))
|
|
|
99 (t
|
|
|
100 (set-default symbol (eval value)))))
|
|
|
101
|
|
|
102 (defun custom-declare-variable (symbol value doc &rest args)
|
|
|
103 "Like `defcustom', but SYMBOL and VALUE are evaluated as normal arguments."
|
|
|
104 ;; Remember the standard setting.
|
|
|
105 (put symbol 'standard-value (list value))
|
|
|
106 ;; Maybe this option was rogue in an earlier version. It no longer is.
|
|
|
107 (when (get symbol 'force-value)
|
|
|
108 ;; It no longer is.
|
|
|
109 (put symbol 'force-value nil))
|
|
|
110 (when doc
|
|
|
111 (put symbol 'variable-documentation doc))
|
|
|
112 (let ((initialize 'custom-initialize-reset)
|
|
|
113 (requests nil))
|
|
|
114 (while args
|
|
|
115 (let ((arg (car args)))
|
|
|
116 (setq args (cdr args))
|
|
227
|
117 (check-argument-type 'keywordp arg)
|
|
209
|
118 (let ((keyword arg)
|
|
|
119 (value (car args)))
|
|
|
120 (unless args
|
|
227
|
121 (signal 'error (list "Keyword is missing an argument" keyword)))
|
|
209
|
122 (setq args (cdr args))
|
|
|
123 (cond ((eq keyword :initialize)
|
|
|
124 (setq initialize value))
|
|
|
125 ((eq keyword :set)
|
|
|
126 (put symbol 'custom-set value))
|
|
|
127 ((eq keyword :get)
|
|
|
128 (put symbol 'custom-get value))
|
|
|
129 ((eq keyword :require)
|
|
|
130 (setq requests (cons value requests)))
|
|
|
131 ((eq keyword :type)
|
|
|
132 (put symbol 'custom-type value))
|
|
|
133 ((eq keyword :options)
|
|
|
134 (if (get symbol 'custom-options)
|
|
|
135 ;; Slow safe code to avoid duplicates.
|
|
|
136 (mapc (lambda (option)
|
|
|
137 (custom-add-option symbol option))
|
|
|
138 value)
|
|
|
139 ;; Fast code for the common case.
|
|
|
140 (put symbol 'custom-options (copy-sequence value))))
|
|
|
141 (t
|
|
|
142 (custom-handle-keyword symbol keyword value
|
|
|
143 'custom-variable))))))
|
|
|
144 (put symbol 'custom-requests requests)
|
|
|
145 ;; Do the actual initialization.
|
|
|
146 (funcall initialize symbol value))
|
|
217
|
147 ;; #### This is a rough equivalent of LOADHIST_ATTACH. However,
|
|
|
148 ;; LOADHIST_ATTACH also checks for `initialized'.
|
|
|
149 (push symbol current-load-list)
|
|
209
|
150 (run-hooks 'custom-define-hook)
|
|
|
151 symbol)
|
|
|
152
|
|
|
153 (defmacro defcustom (symbol value doc &rest args)
|
|
|
154 "Declare SYMBOL as a customizable variable that defaults to VALUE.
|
|
|
155 DOC is the variable documentation.
|
|
|
156
|
|
|
157 Neither SYMBOL nor VALUE needs to be quoted.
|
|
|
158 If SYMBOL is not already bound, initialize it to VALUE.
|
|
|
159 The remaining arguments should have the form
|
|
|
160
|
|
|
161 [KEYWORD VALUE]...
|
|
|
162
|
|
|
163 The following KEYWORD's are defined:
|
|
|
164
|
|
|
165 :type VALUE should be a widget type for editing the symbols value.
|
|
|
166 The default is `sexp'.
|
|
|
167 :options VALUE should be a list of valid members of the widget type.
|
|
|
168 :group VALUE should be a customization group.
|
|
|
169 Add SYMBOL to that group.
|
|
|
170 :initialize VALUE should be a function used to initialize the
|
|
|
171 variable. It takes two arguments, the symbol and value
|
|
|
172 given in the `defcustom' call. The default is
|
|
|
173 `custom-initialize-set'
|
|
|
174 :set VALUE should be a function to set the value of the symbol.
|
|
|
175 It takes two arguments, the symbol to set and the value to
|
|
|
176 give it. The default is `set-default'.
|
|
|
177 :get VALUE should be a function to extract the value of symbol.
|
|
|
178 The function takes one argument, a symbol, and should return
|
|
|
179 the current value for that symbol. The default is
|
|
|
180 `default-value'.
|
|
|
181 :require VALUE should be a feature symbol. Each feature will be
|
|
|
182 required after initialization, of the the user have saved this
|
|
|
183 option.
|
|
|
184
|
|
|
185 Read the section about customization in the Emacs Lisp manual for more
|
|
|
186 information."
|
|
|
187 `(custom-declare-variable (quote ,symbol) (quote ,value) ,doc ,@args))
|
|
|
188
|
|
|
189 ;;; The `defface' Macro.
|
|
|
190
|
|
|
191 (defmacro defface (face spec doc &rest args)
|
|
|
192 "Declare FACE as a customizable face that defaults to SPEC.
|
|
|
193 FACE does not need to be quoted.
|
|
|
194
|
|
|
195 Third argument DOC is the face documentation.
|
|
|
196
|
|
|
197 If FACE has been set with `custom-set-face', set the face attributes
|
|
|
198 as specified by that function, otherwise set the face attributes
|
|
|
199 according to SPEC.
|
|
|
200
|
|
|
201 The remaining arguments should have the form
|
|
|
202
|
|
|
203 [KEYWORD VALUE]...
|
|
|
204
|
|
|
205 The following KEYWORDs are defined:
|
|
|
206
|
|
|
207 :group VALUE should be a customization group.
|
|
|
208 Add FACE to that group.
|
|
|
209
|
|
|
210 SPEC should be an alist of the form ((DISPLAY ATTS)...).
|
|
|
211
|
|
|
212 ATTS is a list of face attributes and their values. The possible
|
|
|
213 attributes are defined in the variable `custom-face-attributes'.
|
|
|
214
|
|
|
215 The ATTS of the first entry in SPEC where the DISPLAY matches the
|
|
|
216 frame should take effect in that frame. DISPLAY can either be the
|
|
|
217 symbol t, which will match all frames, or an alist of the form
|
|
|
218 \((REQ ITEM...)...)
|
|
|
219
|
|
|
220 For the DISPLAY to match a FRAME, the REQ property of the frame must
|
|
|
221 match one of the ITEM. The following REQ are defined:
|
|
|
222
|
|
|
223 `type' (the value of `window-system')
|
|
|
224 Should be one of `x' or `tty'.
|
|
|
225
|
|
|
226 `class' (the frame's color support)
|
|
|
227 Should be one of `color', `grayscale', or `mono'.
|
|
|
228
|
|
|
229 `background' (what color is used for the background text)
|
|
|
230 Should be one of `light' or `dark'.
|
|
|
231
|
|
|
232 Read the section about customization in the Emacs Lisp manual for more
|
|
|
233 information."
|
|
|
234 `(custom-declare-face (quote ,face) ,spec ,doc ,@args))
|
|
|
235
|
|
|
236 ;;; The `defgroup' Macro.
|
|
|
237
|
|
|
238 (defun custom-declare-group (symbol members doc &rest args)
|
|
|
239 "Like `defgroup', but SYMBOL is evaluated as a normal argument."
|
|
|
240 (while members
|
|
|
241 (apply 'custom-add-to-group symbol (car members))
|
|
|
242 (pop members))
|
|
|
243 (put symbol 'custom-group (nconc members (get symbol 'custom-group)))
|
|
|
244 (when doc
|
|
|
245 (put symbol 'group-documentation doc))
|
|
|
246 (while args
|
|
|
247 (let ((arg (car args)))
|
|
|
248 (setq args (cdr args))
|
|
227
|
249 (check-argument-type 'keywordp arg)
|
|
209
|
250 (let ((keyword arg)
|
|
|
251 (value (car args)))
|
|
|
252 (unless args
|
|
227
|
253 (signal 'error (list "Keyword is missing an argument" keyword)))
|
|
209
|
254 (setq args (cdr args))
|
|
|
255 (cond ((eq keyword :prefix)
|
|
|
256 (put symbol 'custom-prefix value))
|
|
|
257 (t
|
|
|
258 (custom-handle-keyword symbol keyword value
|
|
|
259 'custom-group))))))
|
|
|
260 (run-hooks 'custom-define-hook)
|
|
|
261 symbol)
|
|
|
262
|
|
|
263 (defmacro defgroup (symbol members doc &rest args)
|
|
|
264 "Declare SYMBOL as a customization group containing MEMBERS.
|
|
|
265 SYMBOL does not need to be quoted.
|
|
|
266
|
|
|
267 Third arg DOC is the group documentation.
|
|
|
268
|
|
|
269 MEMBERS should be an alist of the form ((NAME WIDGET)...) where NAME
|
|
|
270 is a symbol and WIDGET is a widget for editing that symbol. Useful
|
|
|
271 widgets are `custom-variable' for editing variables, `custom-face' for
|
|
|
272 edit faces, and `custom-group' for editing groups.
|
|
|
273
|
|
|
274 The remaining arguments should have the form
|
|
|
275
|
|
|
276 [KEYWORD VALUE]...
|
|
|
277
|
|
|
278 The following KEYWORD's are defined:
|
|
|
279
|
|
|
280 :group VALUE should be a customization group.
|
|
|
281 Add SYMBOL to that group.
|
|
|
282
|
|
|
283 Read the section about customization in the Emacs Lisp manual for more
|
|
|
284 information."
|
|
|
285 `(custom-declare-group (quote ,symbol) ,members ,doc ,@args))
|
|
|
286
|
|
|
287 ;; This is preloaded very early, so we avoid using CL features.
|
|
|
288 (defvar custom-group-hash-table (make-hashtable 300 'eq)
|
|
|
289 "Hash-table of non-empty groups.")
|
|
|
290
|
|
|
291 (defun custom-add-to-group (group option widget)
|
|
|
292 "To existing GROUP add a new OPTION of type WIDGET.
|
|
|
293 If there already is an entry for that option, overwrite it."
|
|
|
294 (let* ((members (get group 'custom-group))
|
|
|
295 (old (assq option members)))
|
|
|
296 (if old
|
|
|
297 (setcar (cdr old) widget)
|
|
|
298 (put group 'custom-group (nconc members (list (list option widget))))))
|
|
|
299 (puthash group t custom-group-hash-table))
|
|
|
300
|
|
|
301 ;;; Properties.
|
|
|
302
|
|
|
303 (defun custom-handle-all-keywords (symbol args type)
|
|
|
304 "For customization option SYMBOL, handle keyword arguments ARGS.
|
|
|
305 Third argument TYPE is the custom option type."
|
|
|
306 (while args
|
|
|
307 (let ((arg (car args)))
|
|
|
308 (setq args (cdr args))
|
|
227
|
309 (check-argument-type 'keywordp arg)
|
|
209
|
310 (let ((keyword arg)
|
|
|
311 (value (car args)))
|
|
|
312 (unless args
|
|
227
|
313 (signal 'error (list "Keyword is missing an argument" keyword)))
|
|
209
|
314 (setq args (cdr args))
|
|
|
315 (custom-handle-keyword symbol keyword value type)))))
|
|
|
316
|
|
|
317 (defun custom-handle-keyword (symbol keyword value type)
|
|
|
318 "For customization option SYMBOL, handle KEYWORD with VALUE.
|
|
|
319 Fourth argument TYPE is the custom option type."
|
|
|
320 (cond ((eq keyword :group)
|
|
|
321 (custom-add-to-group value symbol type))
|
|
223
|
322 ((eq keyword :version)
|
|
|
323 (custom-add-version symbol value))
|
|
209
|
324 ((eq keyword :link)
|
|
|
325 (custom-add-link symbol value))
|
|
|
326 ((eq keyword :load)
|
|
|
327 (custom-add-load symbol value))
|
|
|
328 ((eq keyword :tag)
|
|
|
329 (put symbol 'custom-tag value))
|
|
|
330 (t
|
|
227
|
331 (signal 'error (list "Unknown keyword" keyword)))))
|
|
209
|
332
|
|
|
333 (defun custom-add-option (symbol option)
|
|
|
334 "To the variable SYMBOL add OPTION.
|
|
|
335
|
|
|
336 If SYMBOL is a hook variable, OPTION should be a hook member.
|
|
|
337 For other types variables, the effect is undefined."
|
|
|
338 (let ((options (get symbol 'custom-options)))
|
|
|
339 (unless (member option options)
|
|
|
340 (put symbol 'custom-options (cons option options)))))
|
|
|
341
|
|
|
342 (defun custom-add-link (symbol widget)
|
|
|
343 "To the custom option SYMBOL add the link WIDGET."
|
|
|
344 (let ((links (get symbol 'custom-links)))
|
|
|
345 (unless (member widget links)
|
|
|
346 (put symbol 'custom-links (cons widget links)))))
|
|
|
347
|
|
223
|
348 (defun custom-add-version (symbol version)
|
|
|
349 "To the custom option SYMBOL add the version VERSION."
|
|
|
350 (put symbol 'custom-version version))
|
|
|
351
|
|
209
|
352 (defun custom-add-load (symbol load)
|
|
|
353 "To the custom option SYMBOL add the dependency LOAD.
|
|
|
354 LOAD should be either a library file name, or a feature name."
|
|
223
|
355 (puthash symbol t custom-group-hash-table)
|
|
209
|
356 (let ((loads (get symbol 'custom-loads)))
|
|
|
357 (unless (member load loads)
|
|
|
358 (put symbol 'custom-loads (cons load loads)))))
|
|
|
359
|
|
|
360 ;;; Initializing.
|
|
|
361
|
|
|
362 (defun custom-set-variables (&rest args)
|
|
|
363 "Initialize variables according to user preferences.
|
|
|
364
|
|
|
365 The arguments should be a list where each entry has the form:
|
|
|
366
|
|
|
367 (SYMBOL VALUE [NOW])
|
|
|
368
|
|
|
369 The unevaluated VALUE is stored as the saved value for SYMBOL.
|
|
|
370 If NOW is present and non-nil, VALUE is also evaluated and bound as
|
|
|
371 the default value for the SYMBOL."
|
|
|
372 (while args
|
|
|
373 (let ((entry (car args)))
|
|
|
374 (if (listp entry)
|
|
|
375 (let* ((symbol (nth 0 entry))
|
|
|
376 (value (nth 1 entry))
|
|
|
377 (now (nth 2 entry))
|
|
|
378 (requests (nth 3 entry))
|
|
|
379 (set (or (get symbol 'custom-set) 'set-default)))
|
|
|
380 (put symbol 'saved-value (list value))
|
|
|
381 (cond (now
|
|
|
382 ;; Rogue variable, set it now.
|
|
|
383 (put symbol 'force-value t)
|
|
|
384 (funcall set symbol (eval value)))
|
|
|
385 ((default-boundp symbol)
|
|
|
386 ;; Something already set this, overwrite it.
|
|
|
387 (funcall set symbol (eval value))))
|
|
|
388 (when requests
|
|
|
389 (put symbol 'custom-requests requests)
|
|
|
390 (mapc 'require requests))
|
|
|
391 (setq args (cdr args)))
|
|
|
392 ;; Old format, a plist of SYMBOL VALUE pairs.
|
|
|
393 (message "Warning: old format `custom-set-variables'")
|
|
|
394 (ding)
|
|
|
395 (sit-for 2)
|
|
|
396 (let ((symbol (nth 0 args))
|
|
|
397 (value (nth 1 args)))
|
|
|
398 (put symbol 'saved-value (list value)))
|
|
|
399 (setq args (cdr (cdr args)))))))
|
|
|
400
|
|
|
401 ;;; The End.
|
|
|
402
|
|
|
403 (provide 'custom)
|
|
|
404
|
|
|
405 ;; custom.el ends here
|
