lisp/cus-start.el

   1 ;;; cus-start.el --- define customization properties of builtins
   2 ;;
   3 ;; Copyright (C) 1997, 1999-2012  Free Software Foundation, Inc.
   4 ;;
   5 ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
   6 ;; Keywords: internal
   7 ;; Package: emacs
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software: you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation, either version 3 of the License, or
  14 ;; (at your option) any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 ;;; Commentary:
  25 ;;
  26 ;; This file adds customize support for built-in variables.
  27
  28 ;; While dumping Emacs, this file is loaded, but it only records
  29 ;; the standard values; it does not do the rest of the job.
  30 ;; Later on, if the user makes a customization buffer,
  31 ;; this file is loaded again with (require 'cus-start);
  32 ;; then it does the whole job.
  33
  34 ;;; Code:
  35
  36 ;; Elements of this list have the form:
  37 ;; SYMBOL GROUP TYPE VERSION REST...
  38 ;; SYMBOL is the name of the variable.
  39 ;; GROUP is the custom group to which it belongs (may also be a list
  40 ;; of groups)
  41 ;; TYPE is the defcustom :type.
  42 ;; VERSION is the defcustom :version (or nil).
  43 ;; REST is a set of :KEYWORD VALUE pairs.  Accepted :KEYWORDs are:
  44 ;; :standard - standard value for SYMBOL (else use current value)
  45 ;; :set - custom-set property
  46 ;; :risky - risky-local-variable property
  47 ;; :safe - safe-local-variable property
  48 ;; :tag - custom-tag property
  49 (let ((all '(;; alloc.c
  50              (gc-cons-threshold alloc integer)
  51              (garbage-collection-messages alloc boolean)
  52              ;; buffer.c
  53              (mode-line-format mode-line sexp) ;Hard to do right.
  54              (major-mode internal function)
  55              (case-fold-search matching boolean)
  56              (fill-column fill integer)
  57              (left-margin fill integer)
  58              (tab-width editing-basics integer)
  59              (ctl-arrow display boolean)
  60              (truncate-lines display boolean)
  61              (word-wrap display boolean)
  62              (selective-display-ellipses display boolean)
  63              (indicate-empty-lines fringe boolean)
  64              (indicate-buffer-boundaries
  65               fringe
  66               (choice
  67                (const :tag "No indicators" nil)
  68                (const :tag "On left, with arrows" left)
  69                (const :tag "On right, with arrows" right)
  70                (set :tag "Pick your own design"
  71                     :value ((t . nil))
  72                     :format "%{%t%}:\n%v\n%d"
  73                     :doc "You can specify a default and then override it \
  74 for individual indicators.
  75 Leaving \"Default\" unchecked is equivalent with specifying a default of
  76 \"Do not show\"."
  77                     (choice :tag "Default"
  78                             :value (t . nil)
  79                             (const :tag "Do not show" (t . nil))
  80                             (const :tag "On the left" (t . left))
  81                             (const :tag "On the right" (t . right)))
  82                     (choice :tag "Top"
  83                             :value (top . left)
  84                             (const :tag "Do not show" (top . nil))
  85                             (const :tag "On the left" (top . left))
  86                             (const :tag "On the right" (top . right)))
  87                     (choice :tag "Bottom"
  88                             :value (bottom . left)
  89                             (const :tag "Do not show" (bottom . nil))
  90                             (const :tag "On the left" (bottom . left))
  91                             (const :tag "On the right" (bottom . right)))
  92                     (choice :tag "Up arrow"
  93                             :value (up . left)
  94                             (const :tag "Do not show" (up . nil))
  95                             (const :tag "On the left" (up . left))
  96                             (const :tag "On the right" (up . right)))
  97                     (choice :tag "Down arrow"
  98                             :value (down . left)
  99                             (const :tag "Do not show" (down . nil))
 100                             (const :tag "On the left" (down . left))
 101                             (const :tag "On the right" (down . right))))
 102                (other :tag "On left, no arrows" t)))
 103              (scroll-up-aggressively windows
 104                                      (choice (const :tag "off" nil) number)
 105                                      "21.1")
 106              (scroll-down-aggressively windows
 107                                        (choice (const :tag "off" nil) number)
 108                                        "21.1")
 109              (line-spacing display (choice (const :tag "none" nil) integer)
 110                            "22.1")
 111              (cursor-in-non-selected-windows
 112               cursor boolean nil
 113               :tag "Cursor In Non-selected Windows"
 114               :set (lambda (symbol value)
 115                      (set-default symbol value)
 116                      (force-mode-line-update t)))
 117              (transient-mark-mode editing-basics boolean nil
 118                                   :standard (not noninteractive)
 119                                   :initialize custom-initialize-delay
 120                                   :set custom-set-minor-mode)
 121              (bidi-paragraph-direction
 122               paragraphs
 123               (choice
 124                (const :tag "Left to Right" left-to-right)
 125                (const :tag "Right to Left" right-to-left)
 126                (const :tag "Dynamic, according to paragraph text" nil))
 127               "24.1")
 128              ;; callint.c
 129              (mark-even-if-inactive editing-basics boolean)
 130              ;; callproc.c
 131              (shell-file-name execute file)
 132              (exec-path execute
 133                         (repeat (choice (const :tag "default directory" nil)
 134                                         (directory :format "%v"))))
 135              ;; charset.c
 136              (charset-map-path installation
 137                                (repeat (directory :format "%v")))
 138              ;; coding.c
 139              (inhibit-eol-conversion mule boolean)
 140              (eol-mnemonic-undecided mule string)
 141              ;; startup.el fiddles with the values.  IMO, would be
 142              ;; simpler to just use #ifdefs in coding.c.
 143              (eol-mnemonic-unix mule string nil
 144                                 :standard
 145                                 (if (memq system-type '(ms-dos windows-nt))
 146                                     "(Unix)" ":"))
 147              (eol-mnemonic-dos mule string nil
 148                                :standard
 149                                (if (memq system-type '(ms-dos windows-nt))
 150                                    "\\" "(DOS)"))
 151              (eol-mnemonic-mac mule string nil
 152                                :standard "(Mac)")
 153              (file-coding-system-alist
 154               mule
 155               (alist
 156                :key-type (regexp :tag "File regexp")
 157                :value-type (choice
 158                             :value (undecided . undecided)
 159                             (cons :tag "Encoding/decoding pair"
 160                                   :value (undecided . undecided)
 161                                   (coding-system :tag "Decoding")
 162                                   (coding-system :tag "Encoding"))
 163                             (coding-system
 164                              :tag "Single coding system"
 165                              :value undecided
 166                              :match (lambda (widget value)
 167                                       (and value (not (functionp value)))))
 168                             (function :value ignore))))
 169              ;; dired.c
 170              (completion-ignored-extensions dired
 171                                             (repeat (string :format "%v")))
 172              ;; dispnew.c
 173              (baud-rate display integer)
 174              (inverse-video display boolean)
 175              (visible-bell display boolean)
 176              (no-redraw-on-reenter display boolean)
 177              ;; editfns.c
 178              (user-full-name mail string)
 179              ;; eval.c
 180              (max-specpdl-size limits integer)
 181              (max-lisp-eval-depth limits integer)
 182              (max-mini-window-height limits
 183                                      (choice (const :tag "quarter screen" nil)
 184                                              number) "23.1")
 185              (debug-on-error debug
 186                              (choice (const :tag "off")
 187                                      (repeat :menu-tag "When"
 188                                              :value (nil)
 189                                              (symbol :format "%v"))
 190                                      (const :tag "always" t)))
 191              (debug-ignored-errors debug (repeat (choice symbol regexp)))
 192              (debug-on-quit debug boolean)
 193              ;; fileio.c
 194              (delete-by-moving-to-trash auto-save boolean "23.1")
 195              (auto-save-visited-file-name auto-save boolean)
 196              ;; filelock.c
 197              (temporary-file-directory
 198               ;; Darwin section added 24.1, does not seem worth :version bump.
 199               files directory nil
 200               :standard
 201               (file-name-as-directory
 202                ;; FIXME ? Should there be Ftemporary_file_directory to do this
 203                ;; more robustly (cf set_local_socket in emacsclient.c).
 204                ;; It could be used elsewhere, eg Fcall_process_region,
 205                ;; server-socket-dir.  See bug#7135.
 206                (cond ((memq system-type '(ms-dos windows-nt))
 207                       (or (getenv "TEMP") (getenv "TMPDIR") (getenv "TMP")
 208                           "c:/temp"))
 209                      ((eq system-type 'darwin)
 210                       (or (getenv "TMPDIR") (getenv "TMP") (getenv "TEMP")
 211                           ;; See bug#7135.
 212                           (let ((tmp (ignore-errors
 213                                        (shell-command-to-string
 214                                         "getconf DARWIN_USER_TEMP_DIR"))))
 215                             (and (stringp tmp)
 216                                  (setq tmp (replace-regexp-in-string
 217                                             "\n\\'" "" tmp))
 218                                  ;; Handles "getconf: Unrecognized variable..."
 219                                  (file-directory-p tmp)
 220                                  tmp))
 221                           "/tmp"))
 222                      (t
 223                       (or (getenv "TMPDIR") (getenv "TMP") (getenv "TEMP")
 224                           "/tmp"))))
 225               :initialize custom-initialize-delay)
 226              ;; fns.c
 227              (use-dialog-box menu boolean "21.1")
 228              (use-file-dialog menu boolean "22.1")
 229              (focus-follows-mouse frames boolean "20.3")
 230              ;; frame.c
 231              (default-frame-alist frames
 232                (repeat (cons :format "%v"
 233                              (symbol :tag "Parameter")
 234                              (sexp :tag "Value"))))
 235              (mouse-highlight mouse (choice (const :tag "disabled" nil)
 236                                             (const :tag "always shown" t)
 237                                             (other :tag "hidden by keypress" 1))
 238                               "22.1")
 239              (make-pointer-invisible mouse boolean "23.2")
 240              (menu-bar-mode frames boolean nil
 241                             ;; FIXME?
 242 ;                           :initialize custom-initialize-default
 243                             :set custom-set-minor-mode)
 244              (tool-bar-mode (frames mouse) boolean nil
 245 ;                           :initialize custom-initialize-default
 246                             :set custom-set-minor-mode)
 247              ;; fringe.c
 248              (overflow-newline-into-fringe fringe boolean)
 249              ;; image.c
 250              (imagemagick-render-type image integer "24.1")
 251              ;; indent.c
 252              (indent-tabs-mode indent boolean)
 253              ;; keyboard.c
 254              (meta-prefix-char keyboard character)
 255              (auto-save-interval auto-save integer)
 256              (auto-save-timeout auto-save (choice (const :tag "off" nil)
 257                                                   (integer :format "%v")))
 258              (echo-keystrokes minibuffer number)
 259              (polling-period keyboard integer)
 260              (double-click-time mouse (restricted-sexp
 261                                        :match-alternatives (integerp 'nil 't)))
 262              (double-click-fuzz mouse integer "22.1")
 263              (inhibit-local-menu-bar-menus menu boolean)
 264              (help-char keyboard character)
 265              (help-event-list keyboard (repeat (sexp :format "%v")))
 266              (menu-prompting menu boolean)
 267              (select-active-regions killing
 268                                     (choice (const :tag "always" t)
 269                                             (const :tag "only shift-selection or mouse-drag" only)
 270                                             (const :tag "off" nil))
 271                                     "24.1")
 272              (suggest-key-bindings keyboard (choice (const :tag "off" nil)
 273                                                     (integer :tag "time" 2)
 274                                                     (other :tag "on")))
 275              (debug-on-event debug
 276                              (choice (const :tag "None" nil)
 277                                      (const :tag "When sent SIGUSR1" sigusr1)
 278                                      (const :tag "When sent SIGUSR2" sigusr2))
 279                              "24.1")
 280
 281 ;; This is not good news because it will use the wrong
 282 ;; version-specific directories when you upgrade.  We need
 283 ;; customization of the front of the list, maintaining the standard
 284 ;; value intact at the back.
 285 ;;;          (load-path environment
 286 ;;;                     (repeat (choice :tag "[Current dir?]"
 287 ;;;                                     :format "%[Current dir?%] %v"
 288 ;;;                                     (const :tag " current dir" nil)
 289 ;;;                                     (directory :format "%v"))))
 290              ;; minibuf.c
 291              (enable-recursive-minibuffers minibuffer boolean)
 292              (history-length minibuffer
 293                              (choice (const :tag "Infinite" t) integer)
 294                              "22.1")
 295              (history-delete-duplicates minibuffer boolean "22.1")
 296              (read-buffer-completion-ignore-case minibuffer boolean "23.1")
 297
 298              (minibuffer-prompt-properties
 299               minibuffer
 300               (list
 301                (checklist :inline t
 302                           (const :tag "Read-Only"
 303                                  :doc "Prevent prompt from being modified"
 304                                  :format "%t%n%h"
 305                                  :inline t
 306                                  (read-only t))
 307                           (const :tag "Don't Enter"
 308                                  :doc "Prevent point from ever entering prompt"
 309                                  :format "%t%n%h"
 310                                  :inline t
 311                                  (point-entered minibuffer-avoid-prompt)))
 312                (repeat :inline t
 313                        :tag "Other Properties"
 314                        (list :inline t
 315                              :format "%v"
 316                              (symbol :tag "Property")
 317                              (sexp :tag "Value"))))
 318               "21.1")
 319              (minibuffer-auto-raise minibuffer boolean)
 320              ;; options property set at end
 321              (read-buffer-function minibuffer
 322                                    (choice (const nil)
 323                                            (function-item iswitchb-read-buffer)
 324                                            function))
 325              ;; msdos.c
 326              (dos-unsupported-char-glyph display integer)
 327              ;; nsterm.m
 328              (ns-control-modifier
 329               ns
 330               (choice (const :tag "No modifier" nil)
 331                       (const control) (const meta)
 332                       (const alt) (const hyper)
 333                       (const super)) "23.1")
 334              (ns-right-control-modifier
 335               ns
 336               (choice (const :tag "No modifier (work as control)" none)
 337                       (const :tag "Use the value of ns-control-modifier"
 338                              left)
 339                       (const control) (const meta)
 340                       (const alt) (const hyper)
 341                       (const super)) "24.0")
 342              (ns-command-modifier
 343               ns
 344               (choice (const :tag "No modifier" nil)
 345                       (const control) (const meta)
 346                       (const alt) (const hyper)
 347                       (const super)) "23.1")
 348              (ns-right-command-modifier
 349               ns
 350               (choice (const :tag "No modifier (work as command)" none)
 351                       (const :tag "Use the value of ns-command-modifier"
 352                              left)
 353                       (const control) (const meta)
 354                       (const alt) (const hyper)
 355                       (const super)) "24.0")
 356              (ns-alternate-modifier
 357               ns
 358               (choice (const :tag "No modifier (work as alternate/option)" none)
 359                       (const control) (const meta)
 360                       (const alt) (const hyper)
 361                       (const super)) "23.1")
 362              (ns-right-alternate-modifier
 363               ns
 364               (choice (const :tag "No modifier (work as alternate/option)" none)
 365                       (const :tag "Use the value of ns-alternate-modifier"
 366                              left)
 367                       (const control) (const meta)
 368                       (const alt) (const hyper)
 369                       (const super)) "23.3")
 370              (ns-function-modifier
 371               ns
 372               (choice (const :tag "No modifier (work as function)" none)
 373                       (const control) (const meta)
 374                       (const alt) (const hyper)
 375                       (const super)) "23.1")
 376              (ns-antialias-text ns boolean "23.1")
 377              (ns-auto-hide-menu-bar ns boolean "24.0")
 378              ;; process.c
 379              (delete-exited-processes processes-basics boolean)
 380              ;; syntax.c
 381              (parse-sexp-ignore-comments editing-basics boolean)
 382              (words-include-escapes editing-basics boolean)
 383              (open-paren-in-column-0-is-defun-start editing-basics boolean
 384                                                     "21.1")
 385              ;; term.c
 386              (visible-cursor cursor boolean "22.1")
 387              ;; undo.c
 388              (undo-limit undo integer)
 389              (undo-strong-limit undo integer)
 390              (undo-outer-limit undo
 391                                (choice integer
 392                                        (const :tag "No limit"
 393                                               :format "%t\n%d"
 394                                               :doc
 395                                               "With this choice, \
 396 the undo info for the current command never gets discarded.
 397 This should only be chosen under exceptional circumstances,
 398 since it could result in memory overflow and make Emacs crash."
 399                                               nil))
 400                                "22.1")
 401              ;; window.c
 402              (temp-buffer-show-function windows (choice (const nil) function))
 403              (next-screen-context-lines windows integer)
 404              (scroll-preserve-screen-position
 405               windows (choice
 406                        (const :tag "Off (nil)" :value nil)
 407                        (const :tag "Full screen (t)" :value t)
 408                        (other :tag "Always" 1)) "22.1")
 409              (recenter-redisplay
 410               windows (choice
 411                        (const :tag "Never (nil)" :value nil)
 412                        (const :tag "Only on ttys" :value tty)
 413                        (other :tag "Always" t)) "23.1")
 414              (window-combination-resize windows boolean "24.1")
 415              (window-combination-limit windows boolean "24.1")
 416              ;; xdisp.c
 417              (show-trailing-whitespace whitespace-faces boolean nil
 418                                        :safe booleanp)
 419              (scroll-step windows integer)
 420              (scroll-conservatively windows integer)
 421              (scroll-margin windows integer)
 422              (hscroll-margin windows integer "22.1")
 423              (hscroll-step windows number "22.1")
 424              (truncate-partial-width-windows display boolean "23.1")
 425              (mode-line-inverse-video mode-line boolean)
 426              (mode-line-in-non-selected-windows mode-line boolean "22.1")
 427              (line-number-display-limit display
 428                                         (choice integer
 429                                                 (const :tag "No limit" nil)))
 430              (line-number-display-limit-width display integer "22.1")
 431              (highlight-nonselected-windows display boolean)
 432              (message-log-max debug (choice (const :tag "Disable" nil)
 433                                             (integer :menu-tag "lines"
 434                                                      :format "%v")
 435                                             (other :tag "Unlimited" t)))
 436              (unibyte-display-via-language-environment mule boolean)
 437              (blink-cursor-alist cursor alist "22.1")
 438              (overline-margin display integer "22.1")
 439              (underline-minimum-offset display integer "23.1")
 440              (mouse-autoselect-window
 441               display (choice
 442                        (const :tag "Off (nil)" :value nil)
 443                        (const :tag "Immediate" :value t)
 444                        (number :tag "Delay by secs" :value 0.5)) "22.1")
 445              (tool-bar-style
 446               frames (choice
 447                       (const :tag "Images" :value image)
 448                       (const :tag "Text" :value text)
 449                       (const :tag "Both" :value both)
 450                       (const :tag "Both-horiz" :value both-horiz)
 451                       (const :tag "Text-image-horiz" :value text-image-horiz)
 452                       (const :tag "System default" :value nil)) "23.3")
 453              (tool-bar-max-label-size frames integer "23.3")
 454              (auto-hscroll-mode scrolling boolean "21.1")
 455              (display-hourglass cursor boolean)
 456              (hourglass-delay cursor number)
 457
 458              ;; xfaces.c
 459              (scalable-fonts-allowed display boolean "22.1")
 460              ;; xfns.c
 461              (x-bitmap-file-path installation
 462                                  (repeat (directory :format "%v")))
 463              (x-gtk-use-old-file-dialog menu boolean "22.1")
 464              (x-gtk-show-hidden-files menu boolean "22.1")
 465              (x-gtk-file-dialog-help-text menu boolean "22.1")
 466              (x-gtk-whole-detached-tool-bar x boolean "22.1")
 467              (x-gtk-use-system-tooltips tooltip boolean "23.3")
 468              ;; xterm.c
 469              (x-use-underline-position-properties display boolean "22.1")
 470              (x-underline-at-descent-line display boolean "22.1")
 471              (x-stretch-cursor display boolean "21.1")
 472              ;; xselect.c
 473              (x-select-enable-clipboard-manager killing boolean "24.1")
 474              ;; xsettings.c
 475              (font-use-system-font font-selection boolean "23.2")))
 476       this symbol group type standard version native-p rest prop propval
 477       ;; This function turns a value
 478       ;; into an expression which produces that value.
 479       (quoter (lambda (sexp)
 480                 (if (or (memq sexp '(t nil))
 481                         (keywordp sexp)
 482                         (and (listp sexp)
 483                              (memq (car sexp) '(lambda)))
 484                         (stringp sexp)
 485                         (numberp sexp))
 486                     sexp
 487                   (list 'quote sexp)))))
 488   (while all
 489     (setq this (car all)
 490           all (cdr all)
 491           symbol (nth 0 this)
 492           group (nth 1 this)
 493           type (nth 2 this)
 494           version (nth 3 this)
 495           rest (nthcdr 4 this)
 496           ;; If we did not specify any standard value expression above,
 497           ;; use the current value as the standard value.
 498           standard (if (setq prop (memq :standard rest))
 499                        (cadr prop)
 500                      (if (default-boundp symbol)
 501                          (funcall quoter (default-value symbol))))
 502           ;; Don't complain about missing variables which are
 503           ;; irrelevant to this platform.
 504           native-p (save-match-data
 505                      (cond
 506                       ((string-match "\\`dos-" (symbol-name symbol))
 507                        (eq system-type 'ms-dos))
 508                       ((string-match "\\`w32-" (symbol-name symbol))
 509                        (eq system-type 'windows-nt))
 510                       ((string-match "\\`ns-" (symbol-name symbol))
 511                        (featurep 'ns))
 512                       ((string-match "\\`x-.*gtk" (symbol-name symbol))
 513                        (featurep 'gtk))
 514                       ((string-match "clipboard-manager" (symbol-name symbol))
 515                        (boundp 'x-select-enable-clipboard-manager))
 516                       ((string-match "\\`x-" (symbol-name symbol))
 517                        (fboundp 'x-create-frame))
 518                       ((string-match "selection" (symbol-name symbol))
 519                        (fboundp 'x-selection-exists-p))
 520                       ((string-match "fringe" (symbol-name symbol))
 521                        (fboundp 'define-fringe-bitmap))
 522                       ((string-match "\\`imagemagick" (symbol-name symbol))
 523                        (fboundp 'imagemagick-types))
 524                       ((equal "font-use-system-font" (symbol-name symbol))
 525                        (featurep 'system-font-setting))
 526                       ;; Conditioned on x-create-frame, because that's
 527                       ;; the condition for loadup.el to preload tool-bar.el.
 528                       ((string-match "tool-bar-" (symbol-name symbol))
 529                        (fboundp 'x-create-frame))
 530                       (t t))))
 531     (if (not (boundp symbol))
 532         ;; If variables are removed from C code, give an error here!
 533         (and native-p
 534              (message "Note, built-in variable `%S' not bound" symbol))
 535       ;; Save the standard value, unless we already did.
 536       (or (get symbol 'standard-value)
 537           (put symbol 'standard-value (list standard)))
 538       ;; We need these properties independent of whether cus-start is loaded.
 539       (if (setq prop (memq :safe rest))
 540           (put symbol 'safe-local-variable (cadr prop)))
 541       (if (setq prop (memq :risky rest))
 542           (put symbol 'risky-local-variable (cadr prop)))
 543       (if (setq prop (memq :set rest))
 544           (put symbol 'custom-set (cadr prop)))
 545       ;; Note this is the _only_ initialize property we handle.
 546       (if (eq (cadr (memq :initialize rest)) 'custom-initialize-delay)
 547           (push symbol custom-delayed-init-variables))
 548       ;; If this is NOT while dumping Emacs, set up the rest of the
 549       ;; customization info.  This is the stuff that is not needed
 550       ;; until someone does M-x customize etc.
 551       (unless purify-flag
 552         ;; Add it to the right group(s).
 553         (if (listp group)
 554             (dolist (g group)
 555               (custom-add-to-group g symbol 'custom-variable))
 556           (custom-add-to-group group symbol 'custom-variable))
 557         ;; Set the type.
 558         (put symbol 'custom-type type)
 559         (if version (put symbol 'custom-version version))
 560         (while rest
 561           (setq prop (car rest)
 562                 propval (cadr rest)
 563                 rest (nthcdr 2 rest))
 564           (cond ((memq prop '(:standard :risky :safe :set))) ; handled above
 565                 ((eq prop :tag)
 566                  (put symbol 'custom-tag propval))))))))
 567
 568 (custom-add-to-group 'iswitchb 'read-buffer-function 'custom-variable)
 569 (custom-add-to-group 'font-lock 'open-paren-in-column-0-is-defun-start
 570                      'custom-variable)
 571
 572 ;; Record cus-start as loaded if we have set up all the info that we can.
 573 ;; Don't record it as loaded if we have only set up the standard values
 574 ;; and safe/risky properties.
 575 (unless purify-flag
 576   (provide 'cus-start))
 577
 578 ;;; cus-start.el ends here