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              (gc-cons-percentage alloc float)
  52              (garbage-collection-messages alloc boolean)
  53              ;; buffer.c
  54              (mode-line-format mode-line sexp) ;Hard to do right.
  55              (major-mode internal function)
  56              (case-fold-search matching boolean)
  57              (fill-column fill integer)
  58              (left-margin fill integer)
  59              (tab-width editing-basics integer)
  60              (ctl-arrow display boolean)
  61              (truncate-lines display boolean)
  62              (word-wrap display boolean)
  63              (selective-display-ellipses display boolean)
  64              (indicate-empty-lines fringe boolean)
  65              (indicate-buffer-boundaries
  66               fringe
  67               (choice
  68                (const :tag "No indicators" nil)
  69                (const :tag "On left, with arrows" left)
  70                (const :tag "On right, with arrows" right)
  71                (set :tag "Pick your own design"
  72                     :value ((t . nil))
  73                     :format "%{%t%}:\n%v\n%d"
  74                     :doc "You can specify a default and then override it \
  75 for individual indicators.
  76 Leaving \"Default\" unchecked is equivalent with specifying a default of
  77 \"Do not show\"."
  78                     (choice :tag "Default"
  79                             :value (t . nil)
  80                             (const :tag "Do not show" (t . nil))
  81                             (const :tag "On the left" (t . left))
  82                             (const :tag "On the right" (t . right)))
  83                     (choice :tag "Top"
  84                             :value (top . left)
  85                             (const :tag "Do not show" (top . nil))
  86                             (const :tag "On the left" (top . left))
  87                             (const :tag "On the right" (top . right)))
  88                     (choice :tag "Bottom"
  89                             :value (bottom . left)
  90                             (const :tag "Do not show" (bottom . nil))
  91                             (const :tag "On the left" (bottom . left))
  92                             (const :tag "On the right" (bottom . right)))
  93                     (choice :tag "Up arrow"
  94                             :value (up . left)
  95                             (const :tag "Do not show" (up . nil))
  96                             (const :tag "On the left" (up . left))
  97                             (const :tag "On the right" (up . right)))
  98                     (choice :tag "Down arrow"
  99                             :value (down . left)
 100                             (const :tag "Do not show" (down . nil))
 101                             (const :tag "On the left" (down . left))
 102                             (const :tag "On the right" (down . right))))
 103                (other :tag "On left, no arrows" t)))
 104              (scroll-up-aggressively windows
 105                                      (choice (const :tag "off" nil) number)
 106                                      "21.1")
 107              (scroll-down-aggressively windows
 108                                        (choice (const :tag "off" nil) number)
 109                                        "21.1")
 110              (line-spacing display (choice (const :tag "none" nil) integer)
 111                            "22.1")
 112              (cursor-in-non-selected-windows
 113               cursor boolean nil
 114               :tag "Cursor In Non-selected Windows"
 115               :set (lambda (symbol value)
 116                      (set-default symbol value)
 117                      (force-mode-line-update t)))
 118              (transient-mark-mode editing-basics boolean nil
 119                                   :standard (not noninteractive)
 120                                   :initialize custom-initialize-delay
 121                                   :set custom-set-minor-mode)
 122              (bidi-paragraph-direction
 123               paragraphs
 124               (choice
 125                (const :tag "Left to Right" left-to-right)
 126                (const :tag "Right to Left" right-to-left)
 127                (const :tag "Dynamic, according to paragraph text" nil))
 128               "24.1")
 129              ;; callint.c
 130              (mark-even-if-inactive editing-basics boolean)
 131              ;; callproc.c
 132              (shell-file-name execute file)
 133              (exec-path execute
 134                         (repeat (choice (const :tag "default directory" nil)
 135                                         (directory :format "%v"))))
 136              (exec-suffixes execute (repeat string))
 137              ;; charset.c
 138              (charset-map-path installation
 139                                (repeat (directory :format "%v")))
 140              ;; coding.c
 141              (inhibit-eol-conversion mule boolean)
 142              (eol-mnemonic-undecided mule string)
 143              ;; startup.el fiddles with the values.  IMO, would be
 144              ;; simpler to just use #ifdefs in coding.c.
 145              (eol-mnemonic-unix mule string nil
 146                                 :standard
 147                                 (if (memq system-type '(ms-dos windows-nt))
 148                                     "(Unix)" ":"))
 149              (eol-mnemonic-dos mule string nil
 150                                :standard
 151                                (if (memq system-type '(ms-dos windows-nt))
 152                                    "\\" "(DOS)"))
 153              (eol-mnemonic-mac mule string nil
 154                                :standard "(Mac)")
 155              (file-coding-system-alist
 156               mule
 157               (alist
 158                :key-type (regexp :tag "File regexp")
 159                :value-type (choice
 160                             :value (undecided . undecided)
 161                             (cons :tag "Encoding/decoding pair"
 162                                   :value (undecided . undecided)
 163                                   (coding-system :tag "Decoding")
 164                                   (coding-system :tag "Encoding"))
 165                             (coding-system
 166                              :tag "Single coding system"
 167                              :value undecided
 168                              :match (lambda (widget value)
 169                                       (and value (not (functionp value)))))
 170                             (function :value ignore))))
 171              ;; dired.c
 172              (completion-ignored-extensions dired
 173                                             (repeat (string :format "%v")))
 174              ;; dispnew.c
 175              (baud-rate display integer)
 176              (inverse-video display boolean)
 177              (visible-bell display boolean)
 178              (no-redraw-on-reenter display boolean)
 179
 180              ;; dosfns.c
 181              (dos-display-scancodes display boolean)
 182              (dos-hyper-key keyboard integer)
 183              (dos-super-key keyboard integer)
 184              (dos-keypad-mode keyboard integer)
 185
 186              ;; editfns.c
 187              (user-full-name mail string)
 188              ;; eval.c
 189              (max-specpdl-size limits integer)
 190              (max-lisp-eval-depth limits integer)
 191              (max-mini-window-height limits
 192                                      (choice (const :tag "quarter screen" nil)
 193                                              number) "23.1")
 194              (debug-on-error debug
 195                              (choice (const :tag "off")
 196                                      (repeat :menu-tag "When"
 197                                              :value (nil)
 198                                              (symbol :format "%v"))
 199                                      (const :tag "always" t)))
 200              (debug-ignored-errors debug (repeat (choice symbol regexp)))
 201              (debug-on-quit debug boolean)
 202              (debug-on-signal debug boolean)
 203              ;; fileio.c
 204              (delete-by-moving-to-trash auto-save boolean "23.1")
 205              (auto-save-visited-file-name auto-save boolean)
 206              ;; filelock.c
 207              (create-lockfiles files boolean "24.2")
 208              (temporary-file-directory
 209               ;; Darwin section added 24.1, does not seem worth :version bump.
 210               files directory nil
 211               :standard
 212               (file-name-as-directory
 213                ;; FIXME ? Should there be Ftemporary_file_directory to do this
 214                ;; more robustly (cf set_local_socket in emacsclient.c).
 215                ;; It could be used elsewhere, eg Fcall_process_region,
 216                ;; server-socket-dir.  See bug#7135.
 217                (cond ((memq system-type '(ms-dos windows-nt))
 218                       (or (getenv "TEMP") (getenv "TMPDIR") (getenv "TMP")
 219                           "c:/temp"))
 220                      ((eq system-type 'darwin)
 221                       (or (getenv "TMPDIR") (getenv "TMP") (getenv "TEMP")
 222                           ;; See bug#7135.
 223                           (let ((tmp (ignore-errors
 224                                        (shell-command-to-string
 225                                         "getconf DARWIN_USER_TEMP_DIR"))))
 226                             (and (stringp tmp)
 227                                  (setq tmp (replace-regexp-in-string
 228                                             "\n\\'" "" tmp))
 229                                  ;; Handles "getconf: Unrecognized variable..."
 230                                  (file-directory-p tmp)
 231                                  tmp))
 232                           "/tmp"))
 233                      (t
 234                       (or (getenv "TMPDIR") (getenv "TMP") (getenv "TEMP")
 235                           "/tmp"))))
 236               :initialize custom-initialize-delay)
 237              ;; fns.c
 238              (use-dialog-box menu boolean "21.1")
 239              (use-file-dialog menu boolean "22.1")
 240              (focus-follows-mouse frames boolean "20.3")
 241              ;; fontset.c
 242              (vertical-centering-font-regexp display regexp)
 243              ;; frame.c
 244              (default-frame-alist frames
 245                (repeat (cons :format "%v"
 246                              (symbol :tag "Parameter")
 247                              (sexp :tag "Value"))))
 248              (mouse-highlight mouse (choice (const :tag "disabled" nil)
 249                                             (const :tag "always shown" t)
 250                                             (other :tag "hidden by keypress" 1))
 251                               "22.1")
 252              (make-pointer-invisible mouse boolean "23.2")
 253              (menu-bar-mode frames boolean nil
 254                             ;; FIXME?
 255 ;                           :initialize custom-initialize-default
 256                             :set custom-set-minor-mode)
 257              (tool-bar-mode (frames mouse) boolean nil
 258 ;                           :initialize custom-initialize-default
 259                             :set custom-set-minor-mode)
 260              ;; fringe.c
 261              (overflow-newline-into-fringe fringe boolean)
 262              ;; image.c
 263              (imagemagick-render-type image integer "24.1")
 264              ;; indent.c
 265              (indent-tabs-mode indent boolean)
 266              ;; keyboard.c
 267              (meta-prefix-char keyboard character)
 268              (auto-save-interval auto-save integer)
 269              (auto-save-timeout auto-save (choice (const :tag "off" nil)
 270                                                   (integer :format "%v")))
 271              (echo-keystrokes minibuffer number)
 272              (polling-period keyboard integer)
 273              (double-click-time mouse (restricted-sexp
 274                                        :match-alternatives (integerp 'nil 't)))
 275              (double-click-fuzz mouse integer "22.1")
 276              (inhibit-local-menu-bar-menus menu boolean)
 277              (help-char keyboard character)
 278              (help-event-list keyboard (repeat (sexp :format "%v")))
 279              (menu-prompting menu boolean)
 280              (select-active-regions killing
 281                                     (choice (const :tag "always" t)
 282                                             (const :tag "only shift-selection or mouse-drag" only)
 283                                             (const :tag "off" nil))
 284                                     "24.1")
 285              (debug-on-event debug
 286                              (choice (const :tag "None" nil)
 287                                      (const :tag "When sent SIGUSR1" sigusr1)
 288                                      (const :tag "When sent SIGUSR2" sigusr2))
 289                              "24.1")
 290
 291 ;; This is not good news because it will use the wrong
 292 ;; version-specific directories when you upgrade.  We need
 293 ;; customization of the front of the list, maintaining the standard
 294 ;; value intact at the back.
 295 ;;;          (load-path environment
 296 ;;;                     (repeat (choice :tag "[Current dir?]"
 297 ;;;                                     :format "%[Current dir?%] %v"
 298 ;;;                                     (const :tag " current dir" nil)
 299 ;;;                                     (directory :format "%v"))))
 300              ;; minibuf.c
 301              (enable-recursive-minibuffers minibuffer boolean)
 302              (history-length minibuffer
 303                              (choice (const :tag "Infinite" t) integer)
 304                              "22.1")
 305              (history-delete-duplicates minibuffer boolean "22.1")
 306              (read-buffer-completion-ignore-case minibuffer boolean "23.1")
 307
 308              (minibuffer-prompt-properties
 309               minibuffer
 310               (list
 311                (checklist :inline t
 312                           (const :tag "Read-Only"
 313                                  :doc "Prevent prompt from being modified"
 314                                  :format "%t%n%h"
 315                                  :inline t
 316                                  (read-only t))
 317                           (const :tag "Don't Enter"
 318                                  :doc "Prevent point from ever entering prompt"
 319                                  :format "%t%n%h"
 320                                  :inline t
 321                                  (point-entered minibuffer-avoid-prompt)))
 322                (repeat :inline t
 323                        :tag "Other Properties"
 324                        (list :inline t
 325                              :format "%v"
 326                              (symbol :tag "Property")
 327                              (sexp :tag "Value"))))
 328               "21.1")
 329              (minibuffer-auto-raise minibuffer boolean)
 330              ;; options property set at end
 331              (read-buffer-function minibuffer
 332                                    (choice (const nil)
 333                                            (function-item iswitchb-read-buffer)
 334                                            function))
 335              ;; msdos.c
 336              (dos-unsupported-char-glyph display integer)
 337              ;; nsterm.m
 338              (ns-control-modifier
 339               ns
 340               (choice (const :tag "No modifier" nil)
 341                       (const control) (const meta)
 342                       (const alt) (const hyper)
 343                       (const super)) "23.1")
 344              (ns-right-control-modifier
 345               ns
 346               (choice (const :tag "No modifier (work as control)" none)
 347                       (const :tag "Use the value of ns-control-modifier"
 348                              left)
 349                       (const control) (const meta)
 350                       (const alt) (const hyper)
 351                       (const super)) "24.0")
 352              (ns-command-modifier
 353               ns
 354               (choice (const :tag "No modifier" nil)
 355                       (const control) (const meta)
 356                       (const alt) (const hyper)
 357                       (const super)) "23.1")
 358              (ns-right-command-modifier
 359               ns
 360               (choice (const :tag "No modifier (work as command)" none)
 361                       (const :tag "Use the value of ns-command-modifier"
 362                              left)
 363                       (const control) (const meta)
 364                       (const alt) (const hyper)
 365                       (const super)) "24.0")
 366              (ns-alternate-modifier
 367               ns
 368               (choice (const :tag "No modifier (work as alternate/option)" none)
 369                       (const control) (const meta)
 370                       (const alt) (const hyper)
 371                       (const super)) "23.1")
 372              (ns-right-alternate-modifier
 373               ns
 374               (choice (const :tag "No modifier (work as alternate/option)" none)
 375                       (const :tag "Use the value of ns-alternate-modifier"
 376                              left)
 377                       (const control) (const meta)
 378                       (const alt) (const hyper)
 379                       (const super)) "23.3")
 380              (ns-function-modifier
 381               ns
 382               (choice (const :tag "No modifier (work as function)" none)
 383                       (const control) (const meta)
 384                       (const alt) (const hyper)
 385                       (const super)) "23.1")
 386              (ns-antialias-text ns boolean "23.1")
 387              (ns-auto-hide-menu-bar ns boolean "24.0")
 388              ;; process.c
 389              (delete-exited-processes processes-basics boolean)
 390              ;; syntax.c
 391              (parse-sexp-ignore-comments editing-basics boolean)
 392              (words-include-escapes editing-basics boolean)
 393              (open-paren-in-column-0-is-defun-start editing-basics boolean
 394                                                     "21.1")
 395              ;; term.c
 396              (visible-cursor cursor boolean "22.1")
 397              ;; undo.c
 398              (undo-limit undo integer)
 399              (undo-strong-limit undo integer)
 400              (undo-outer-limit undo
 401                                (choice integer
 402                                        (const :tag "No limit"
 403                                               :format "%t\n%d"
 404                                               :doc
 405                                               "With this choice, \
 406 the undo info for the current command never gets discarded.
 407 This should only be chosen under exceptional circumstances,
 408 since it could result in memory overflow and make Emacs crash."
 409                                               nil))
 410                                "22.1")
 411              ;; window.c
 412              (temp-buffer-show-function windows (choice (const nil) function))
 413              (next-screen-context-lines windows integer)
 414              (scroll-preserve-screen-position
 415               windows (choice
 416                        (const :tag "Off (nil)" :value nil)
 417                        (const :tag "Full screen (t)" :value t)
 418                        (other :tag "Always" 1)) "22.1")
 419              (recenter-redisplay
 420               windows (choice
 421                        (const :tag "Never (nil)" :value nil)
 422                        (const :tag "Only on ttys" :value tty)
 423                        (other :tag "Always" t)) "23.1")
 424              (window-combination-resize windows boolean "24.1")
 425              (window-combination-limit windows boolean "24.1")
 426              ;; xdisp.c
 427              (show-trailing-whitespace whitespace-faces boolean nil
 428                                        :safe booleanp)
 429              (scroll-step windows integer)
 430              (scroll-conservatively windows integer)
 431              (scroll-margin windows integer)
 432              (hscroll-margin windows integer "22.1")
 433              (hscroll-step windows number "22.1")
 434              (truncate-partial-width-windows display boolean "23.1")
 435              (make-cursor-line-fully-visible windows boolean)
 436              (mode-line-inverse-video mode-line boolean)
 437              (mode-line-in-non-selected-windows mode-line boolean "22.1")
 438              (line-number-display-limit display
 439                                         (choice integer
 440                                                 (const :tag "No limit" nil)))
 441              (line-number-display-limit-width display integer "22.1")
 442              (highlight-nonselected-windows display boolean)
 443              (message-log-max debug (choice (const :tag "Disable" nil)
 444                                             (integer :menu-tag "lines"
 445                                                      :format "%v")
 446                                             (other :tag "Unlimited" t)))
 447              (unibyte-display-via-language-environment mule boolean)
 448              (blink-cursor-alist cursor alist "22.1")
 449              (overline-margin display integer "22.1")
 450              (underline-minimum-offset display integer "23.1")
 451              (mouse-autoselect-window
 452               display (choice
 453                        (const :tag "Off (nil)" :value nil)
 454                        (const :tag "Immediate" :value t)
 455                        (number :tag "Delay by secs" :value 0.5)) "22.1")
 456              (tool-bar-style
 457               frames (choice
 458                       (const :tag "Images" :value image)
 459                       (const :tag "Text" :value text)
 460                       (const :tag "Both" :value both)
 461                       (const :tag "Both-horiz" :value both-horiz)
 462                       (const :tag "Text-image-horiz" :value text-image-horiz)
 463                       (const :tag "System default" :value nil)) "24.1")
 464              (tool-bar-max-label-size frames integer "24.1")
 465              (auto-hscroll-mode scrolling boolean "21.1")
 466              (void-text-area-pointer cursor
 467                                      (choice
 468                                       (const :tag "Standard (text pointer)" :value nil)
 469                                       (const :tag "Arrow" :value arrow)
 470                                       (const :tag "Text pointer" :value text)
 471                                       (const :tag "Hand" :value hand)
 472                                       (const :tag "Vertical dragger" :value vdrag)
 473                                       (const :tag "Horizontal dragger" :value hdrag)
 474                                       (const :tag "Same as mode line" :value modeline)
 475                                       (const :tag "Hourglass" :value hourglass)))
 476              (display-hourglass cursor boolean)
 477              (hourglass-delay cursor number)
 478
 479              ;; xfaces.c
 480              (font-list-limit display integer)
 481              (scalable-fonts-allowed display boolean "22.1")
 482              ;; xfns.c
 483              (x-bitmap-file-path installation
 484                                  (repeat (directory :format "%v")))
 485              (x-gtk-use-old-file-dialog menu boolean "22.1")
 486              (x-gtk-show-hidden-files menu boolean "22.1")
 487              (x-gtk-file-dialog-help-text menu boolean "22.1")
 488              (x-gtk-whole-detached-tool-bar x boolean "22.1")
 489              (x-gtk-use-system-tooltips tooltip boolean "23.3")
 490              ;; xterm.c
 491              (x-use-underline-position-properties display boolean "22.1")
 492              (x-underline-at-descent-line display boolean "22.1")
 493              (x-stretch-cursor display boolean "21.1")
 494              ;; xselect.c
 495              (x-select-enable-clipboard-manager killing boolean "24.1")
 496              ;; xsettings.c
 497              (font-use-system-font font-selection boolean "23.2")))
 498       this symbol group type standard version native-p rest prop propval
 499       ;; This function turns a value
 500       ;; into an expression which produces that value.
 501       (quoter (lambda (sexp)
 502                 (if (or (memq sexp '(t nil))
 503                         (keywordp sexp)
 504                         (and (listp sexp)
 505                              (memq (car sexp) '(lambda)))
 506                         (stringp sexp)
 507                         (numberp sexp))
 508                     sexp
 509                   (list 'quote sexp)))))
 510   (while all
 511     (setq this (car all)
 512           all (cdr all)
 513           symbol (nth 0 this)
 514           group (nth 1 this)
 515           type (nth 2 this)
 516           version (nth 3 this)
 517           rest (nthcdr 4 this)
 518           ;; If we did not specify any standard value expression above,
 519           ;; use the current value as the standard value.
 520           standard (if (setq prop (memq :standard rest))
 521                        (cadr prop)
 522                      (if (default-boundp symbol)
 523                          (funcall quoter (default-value symbol))))
 524           ;; Don't complain about missing variables which are
 525           ;; irrelevant to this platform.
 526           native-p (save-match-data
 527                      (cond
 528                       ((string-match "\\`dos-" (symbol-name symbol))
 529                        (eq system-type 'ms-dos))
 530                       ((string-match "\\`w32-" (symbol-name symbol))
 531                        (eq system-type 'windows-nt))
 532                       ((string-match "\\`ns-" (symbol-name symbol))
 533                        (featurep 'ns))
 534                       ((string-match "\\`x-.*gtk" (symbol-name symbol))
 535                        (featurep 'gtk))
 536                       ((string-match "clipboard-manager" (symbol-name symbol))
 537                        (boundp 'x-select-enable-clipboard-manager))
 538                       ((string-match "\\`x-" (symbol-name symbol))
 539                        (fboundp 'x-create-frame))
 540                       ((string-match "selection" (symbol-name symbol))
 541                        (fboundp 'x-selection-exists-p))
 542                       ((string-match "fringe" (symbol-name symbol))
 543                        (fboundp 'define-fringe-bitmap))
 544                       ((string-match "\\`imagemagick" (symbol-name symbol))
 545                        (fboundp 'imagemagick-types))
 546                       ((equal "font-use-system-font" (symbol-name symbol))
 547                        (featurep 'system-font-setting))
 548                       ;; Conditioned on x-create-frame, because that's
 549                       ;; the condition for loadup.el to preload tool-bar.el.
 550                       ((string-match "tool-bar-" (symbol-name symbol))
 551                        (fboundp 'x-create-frame))
 552                       ((equal "vertical-centering-font-regexp"
 553                               (symbol-name symbol))
 554                        ;; Any function from fontset.c will do.
 555                        (fboundp 'new-fontset))
 556                       (t t))))
 557     (if (not (boundp symbol))
 558         ;; If variables are removed from C code, give an error here!
 559         (and native-p
 560              (message "Note, built-in variable `%S' not bound" symbol))
 561       ;; Save the standard value, unless we already did.
 562       (or (get symbol 'standard-value)
 563           (put symbol 'standard-value (list standard)))
 564       ;; We need these properties independent of whether cus-start is loaded.
 565       (if (setq prop (memq :safe rest))
 566           (put symbol 'safe-local-variable (cadr prop)))
 567       (if (setq prop (memq :risky rest))
 568           (put symbol 'risky-local-variable (cadr prop)))
 569       (if (setq prop (memq :set rest))
 570           (put symbol 'custom-set (cadr prop)))
 571       ;; Note this is the _only_ initialize property we handle.
 572       (if (eq (cadr (memq :initialize rest)) 'custom-initialize-delay)
 573           (push symbol custom-delayed-init-variables))
 574       ;; If this is NOT while dumping Emacs, set up the rest of the
 575       ;; customization info.  This is the stuff that is not needed
 576       ;; until someone does M-x customize etc.
 577       (unless purify-flag
 578         ;; Add it to the right group(s).
 579         (if (listp group)
 580             (dolist (g group)
 581               (custom-add-to-group g symbol 'custom-variable))
 582           (custom-add-to-group group symbol 'custom-variable))
 583         ;; Set the type.
 584         (put symbol 'custom-type type)
 585         (if version (put symbol 'custom-version version))
 586         (while rest
 587           (setq prop (car rest)
 588                 propval (cadr rest)
 589                 rest (nthcdr 2 rest))
 590           (cond ((memq prop '(:standard :risky :safe :set))) ; handled above
 591                 ((eq prop :tag)
 592                  (put symbol 'custom-tag propval))))))))
 593
 594 (custom-add-to-group 'iswitchb 'read-buffer-function 'custom-variable)
 595 (custom-add-to-group 'font-lock 'open-paren-in-column-0-is-defun-start
 596                      'custom-variable)
 597
 598 ;; Record cus-start as loaded if we have set up all the info that we can.
 599 ;; Don't record it as loaded if we have only set up the standard values
 600 ;; and safe/risky properties.
 601 (unless purify-flag
 602   (provide 'cus-start))
 603
 604 ;;; cus-start.el ends here