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              (cursor-type
  55               display
  56               (choice
  57                (const :tag "Frame default" t)
  58                (const :tag "Filled box" box)
  59                (const :tag "Hollow cursor" hollow)
  60                (const :tag "Vertical bar" bar)
  61                (cons  :tag "Vertical bar with specified width"
  62                       (const bar) integer)
  63                (const :tag "Horizontal bar" hbar)
  64                (cons  :tag "Horizontal bar with specified width"
  65                       (const hbar) integer)
  66                (const :tag "None "nil)))
  67              (mode-line-format mode-line sexp) ;Hard to do right.
  68              (major-mode internal function)
  69              (case-fold-search matching boolean)
  70              (fill-column fill integer)
  71              (left-margin fill integer)
  72              (tab-width editing-basics integer)
  73              (ctl-arrow display boolean)
  74              (truncate-lines display boolean)
  75              (word-wrap display boolean)
  76              (selective-display-ellipses display boolean)
  77              (indicate-empty-lines fringe boolean)
  78              (indicate-buffer-boundaries
  79               fringe
  80               (choice
  81                (const :tag "No indicators" nil)
  82                (const :tag "On left, with arrows" left)
  83                (const :tag "On right, with arrows" right)
  84                (set :tag "Pick your own design"
  85                     :value ((t . nil))
  86                     :format "%{%t%}:\n%v\n%d"
  87                     :doc "You can specify a default and then override it \
  88 for individual indicators.
  89 Leaving \"Default\" unchecked is equivalent with specifying a default of
  90 \"Do not show\"."
  91                     (choice :tag "Default"
  92                             :value (t . nil)
  93                             (const :tag "Do not show" (t . nil))
  94                             (const :tag "On the left" (t . left))
  95                             (const :tag "On the right" (t . right)))
  96                     (choice :tag "Top"
  97                             :value (top . left)
  98                             (const :tag "Do not show" (top . nil))
  99                             (const :tag "On the left" (top . left))
 100                             (const :tag "On the right" (top . right)))
 101                     (choice :tag "Bottom"
 102                             :value (bottom . left)
 103                             (const :tag "Do not show" (bottom . nil))
 104                             (const :tag "On the left" (bottom . left))
 105                             (const :tag "On the right" (bottom . right)))
 106                     (choice :tag "Up arrow"
 107                             :value (up . left)
 108                             (const :tag "Do not show" (up . nil))
 109                             (const :tag "On the left" (up . left))
 110                             (const :tag "On the right" (up . right)))
 111                     (choice :tag "Down arrow"
 112                             :value (down . left)
 113                             (const :tag "Do not show" (down . nil))
 114                             (const :tag "On the left" (down . left))
 115                             (const :tag "On the right" (down . right))))
 116                (other :tag "On left, no arrows" t)))
 117              (scroll-up-aggressively windows
 118                                      (choice (const :tag "off" nil) number)
 119                                      "21.1")
 120              (scroll-down-aggressively windows
 121                                        (choice (const :tag "off" nil) number)
 122                                        "21.1")
 123              (line-spacing display (choice (const :tag "none" nil) integer)
 124                            "22.1")
 125              (cursor-in-non-selected-windows
 126               cursor boolean nil
 127               :tag "Cursor In Non-selected Windows"
 128               :set (lambda (symbol value)
 129                      (set-default symbol value)
 130                      (force-mode-line-update t)))
 131              (transient-mark-mode editing-basics boolean nil
 132                                   :standard (not noninteractive)
 133                                   :initialize custom-initialize-delay
 134                                   :set custom-set-minor-mode)
 135              (bidi-paragraph-direction
 136               paragraphs
 137               (choice
 138                (const :tag "Left to Right" left-to-right)
 139                (const :tag "Right to Left" right-to-left)
 140                (const :tag "Dynamic, according to paragraph text" nil))
 141               "24.1")
 142              ;; callint.c
 143              (mark-even-if-inactive editing-basics boolean)
 144              ;; callproc.c
 145              (shell-file-name execute file)
 146              (exec-path execute
 147                         (repeat (choice (const :tag "default directory" nil)
 148                                         (directory :format "%v"))))
 149              (exec-suffixes execute (repeat string))
 150              ;; charset.c
 151              (charset-map-path installation
 152                                (repeat (directory :format "%v")))
 153              ;; coding.c
 154              (inhibit-eol-conversion mule boolean)
 155              (eol-mnemonic-undecided mule string)
 156              ;; startup.el fiddles with the values.  IMO, would be
 157              ;; simpler to just use #ifdefs in coding.c.
 158              (eol-mnemonic-unix mule string nil
 159                                 :standard
 160                                 (if (memq system-type '(ms-dos windows-nt))
 161                                     "(Unix)" ":"))
 162              (eol-mnemonic-dos mule string nil
 163                                :standard
 164                                (if (memq system-type '(ms-dos windows-nt))
 165                                    "\\" "(DOS)"))
 166              (eol-mnemonic-mac mule string nil
 167                                :standard "(Mac)")
 168              (file-coding-system-alist
 169               mule
 170               (alist
 171                :key-type (regexp :tag "File regexp")
 172                :value-type (choice
 173                             :value (undecided . undecided)
 174                             (cons :tag "Encoding/decoding pair"
 175                                   :value (undecided . undecided)
 176                                   (coding-system :tag "Decoding")
 177                                   (coding-system :tag "Encoding"))
 178                             (coding-system
 179                              :tag "Single coding system"
 180                              :value undecided
 181                              :match (lambda (widget value)
 182                                       (and value (not (functionp value)))))
 183                             (function :value ignore))))
 184              ;; dired.c
 185              (completion-ignored-extensions dired
 186                                             (repeat (string :format "%v")))
 187              ;; dispnew.c
 188              (baud-rate display integer)
 189              (inverse-video display boolean)
 190              (visible-bell display boolean)
 191              (no-redraw-on-reenter display boolean)
 192
 193              ;; dosfns.c
 194              (dos-display-scancodes display boolean)
 195              (dos-hyper-key keyboard integer)
 196              (dos-super-key keyboard integer)
 197              (dos-keypad-mode keyboard integer)
 198
 199              ;; editfns.c
 200              (user-full-name mail string)
 201              ;; eval.c
 202              (max-specpdl-size limits integer)
 203              (max-lisp-eval-depth limits integer)
 204              (max-mini-window-height limits
 205                                      (choice (const :tag "quarter screen" nil)
 206                                              number) "23.1")
 207              (debug-on-error debug
 208                              (choice (const :tag "off")
 209                                      (repeat :menu-tag "When"
 210                                              :value (nil)
 211                                              (symbol :format "%v"))
 212                                      (const :tag "always" t)))
 213              (debug-ignored-errors debug (repeat (choice symbol regexp)))
 214              (debug-on-quit debug boolean)
 215              (debug-on-signal debug boolean)
 216              ;; fileio.c
 217              (delete-by-moving-to-trash auto-save boolean "23.1")
 218              (auto-save-visited-file-name auto-save boolean)
 219              ;; filelock.c
 220              (create-lockfiles files boolean "24.3")
 221              (temporary-file-directory
 222               ;; Darwin section added 24.1, does not seem worth :version bump.
 223               files directory nil
 224               :standard
 225               (file-name-as-directory
 226                ;; FIXME ? Should there be Ftemporary_file_directory to do this
 227                ;; more robustly (cf set_local_socket in emacsclient.c).
 228                ;; It could be used elsewhere, eg Fcall_process_region,
 229                ;; server-socket-dir.  See bug#7135.
 230                (cond ((memq system-type '(ms-dos windows-nt))
 231                       (or (getenv "TEMP") (getenv "TMPDIR") (getenv "TMP")
 232                           "c:/temp"))
 233                      ((eq system-type 'darwin)
 234                       (or (getenv "TMPDIR") (getenv "TMP") (getenv "TEMP")
 235                           ;; See bug#7135.
 236                           (let ((tmp (ignore-errors
 237                                        (shell-command-to-string
 238                                         "getconf DARWIN_USER_TEMP_DIR"))))
 239                             (and (stringp tmp)
 240                                  (setq tmp (replace-regexp-in-string
 241                                             "\n\\'" "" tmp))
 242                                  ;; Handles "getconf: Unrecognized variable..."
 243                                  (file-directory-p tmp)
 244                                  tmp))
 245                           "/tmp"))
 246                      (t
 247                       (or (getenv "TMPDIR") (getenv "TMP") (getenv "TEMP")
 248                           "/tmp"))))
 249               :initialize custom-initialize-delay)
 250              ;; fns.c
 251              (use-dialog-box menu boolean "21.1")
 252              (use-file-dialog menu boolean "22.1")
 253              (focus-follows-mouse frames boolean "20.3")
 254              ;; fontset.c
 255              (vertical-centering-font-regexp display regexp)
 256              ;; frame.c
 257              (default-frame-alist frames
 258                (repeat (cons :format "%v"
 259                              (symbol :tag "Parameter")
 260                              (sexp :tag "Value"))))
 261              (mouse-highlight mouse (choice (const :tag "disabled" nil)
 262                                             (const :tag "always shown" t)
 263                                             (other :tag "hidden by keypress" 1))
 264                               "22.1")
 265              (make-pointer-invisible mouse boolean "23.2")
 266              (menu-bar-mode frames boolean nil
 267                             ;; FIXME?
 268 ;                           :initialize custom-initialize-default
 269                             :set custom-set-minor-mode)
 270              (tool-bar-mode (frames mouse) boolean nil
 271 ;                           :initialize custom-initialize-default
 272                             :set custom-set-minor-mode)
 273              ;; fringe.c
 274              (overflow-newline-into-fringe fringe boolean)
 275              ;; image.c
 276              (imagemagick-render-type image integer "24.1")
 277              ;; indent.c
 278              (indent-tabs-mode indent boolean)
 279              ;; keyboard.c
 280              (meta-prefix-char keyboard character)
 281              (auto-save-interval auto-save integer)
 282              (auto-save-timeout auto-save (choice (const :tag "off" nil)
 283                                                   (integer :format "%v")))
 284              (echo-keystrokes minibuffer number)
 285              (polling-period keyboard integer)
 286              (double-click-time mouse (restricted-sexp
 287                                        :match-alternatives (integerp 'nil 't)))
 288              (double-click-fuzz mouse integer "22.1")
 289              (inhibit-local-menu-bar-menus menu boolean)
 290              (help-char keyboard character)
 291              (help-event-list keyboard (repeat (sexp :format "%v")))
 292              (menu-prompting menu boolean)
 293              (select-active-regions killing
 294                                     (choice (const :tag "always" t)
 295                                             (const :tag "only shift-selection or mouse-drag" only)
 296                                             (const :tag "off" nil))
 297                                     "24.1")
 298              (debug-on-event debug
 299                              (choice (const :tag "None" nil)
 300                                      (const :tag "When sent SIGUSR1" sigusr1)
 301                                      (const :tag "When sent SIGUSR2" sigusr2))
 302                              "24.1")
 303
 304 ;; This is not good news because it will use the wrong
 305 ;; version-specific directories when you upgrade.  We need
 306 ;; customization of the front of the list, maintaining the standard
 307 ;; value intact at the back.
 308 ;;;          (load-path environment
 309 ;;;                     (repeat (choice :tag "[Current dir?]"
 310 ;;;                                     :format "%[Current dir?%] %v"
 311 ;;;                                     (const :tag " current dir" nil)
 312 ;;;                                     (directory :format "%v"))))
 313              ;; minibuf.c
 314              (enable-recursive-minibuffers minibuffer boolean)
 315              (history-length minibuffer
 316                              (choice (const :tag "Infinite" t) integer)
 317                              "22.1")
 318              (history-delete-duplicates minibuffer boolean "22.1")
 319              (read-buffer-completion-ignore-case minibuffer boolean "23.1")
 320
 321              (minibuffer-prompt-properties
 322               minibuffer
 323               (list
 324                (checklist :inline t
 325                           (const :tag "Read-Only"
 326                                  :doc "Prevent prompt from being modified"
 327                                  :format "%t%n%h"
 328                                  :inline t
 329                                  (read-only t))
 330                           (const :tag "Don't Enter"
 331                                  :doc "Prevent point from ever entering prompt"
 332                                  :format "%t%n%h"
 333                                  :inline t
 334                                  (point-entered minibuffer-avoid-prompt)))
 335                (repeat :inline t
 336                        :tag "Other Properties"
 337                        (list :inline t
 338                              :format "%v"
 339                              (symbol :tag "Property")
 340                              (sexp :tag "Value"))))
 341               "21.1")
 342              (minibuffer-auto-raise minibuffer boolean)
 343              ;; options property set at end
 344              (read-buffer-function minibuffer
 345                                    (choice (const nil)
 346                                            (function-item iswitchb-read-buffer)
 347                                            function))
 348              ;; msdos.c
 349              (dos-unsupported-char-glyph display integer)
 350              ;; nsterm.m
 351              (ns-control-modifier
 352               ns
 353               (choice (const :tag "No modifier" nil)
 354                       (const control) (const meta)
 355                       (const alt) (const hyper)
 356                       (const super)) "23.1")
 357              (ns-right-control-modifier
 358               ns
 359               (choice (const :tag "No modifier (work as control)" none)
 360                       (const :tag "Use the value of ns-control-modifier"
 361                              left)
 362                       (const control) (const meta)
 363                       (const alt) (const hyper)
 364                       (const super)) "24.0")
 365              (ns-command-modifier
 366               ns
 367               (choice (const :tag "No modifier" nil)
 368                       (const control) (const meta)
 369                       (const alt) (const hyper)
 370                       (const super)) "23.1")
 371              (ns-right-command-modifier
 372               ns
 373               (choice (const :tag "No modifier (work as command)" none)
 374                       (const :tag "Use the value of ns-command-modifier"
 375                              left)
 376                       (const control) (const meta)
 377                       (const alt) (const hyper)
 378                       (const super)) "24.0")
 379              (ns-alternate-modifier
 380               ns
 381               (choice (const :tag "No modifier (work as alternate/option)" none)
 382                       (const control) (const meta)
 383                       (const alt) (const hyper)
 384                       (const super)) "23.1")
 385              (ns-right-alternate-modifier
 386               ns
 387               (choice (const :tag "No modifier (work as alternate/option)" none)
 388                       (const :tag "Use the value of ns-alternate-modifier"
 389                              left)
 390                       (const control) (const meta)
 391                       (const alt) (const hyper)
 392                       (const super)) "23.3")
 393              (ns-function-modifier
 394               ns
 395               (choice (const :tag "No modifier (work as function)" none)
 396                       (const control) (const meta)
 397                       (const alt) (const hyper)
 398                       (const super)) "23.1")
 399              (ns-antialias-text ns boolean "23.1")
 400              (ns-auto-hide-menu-bar ns boolean "24.0")
 401              ;; process.c
 402              (delete-exited-processes processes-basics boolean)
 403              ;; syntax.c
 404              (parse-sexp-ignore-comments editing-basics boolean)
 405              (words-include-escapes editing-basics boolean)
 406              (open-paren-in-column-0-is-defun-start editing-basics boolean
 407                                                     "21.1")
 408              ;; term.c
 409              (visible-cursor cursor boolean "22.1")
 410              ;; undo.c
 411              (undo-limit undo integer)
 412              (undo-strong-limit undo integer)
 413              (undo-outer-limit undo
 414                                (choice integer
 415                                        (const :tag "No limit"
 416                                               :format "%t\n%d"
 417                                               :doc
 418                                               "With this choice, \
 419 the undo info for the current command never gets discarded.
 420 This should only be chosen under exceptional circumstances,
 421 since it could result in memory overflow and make Emacs crash."
 422                                               nil))
 423                                "22.1")
 424              ;; window.c
 425              (temp-buffer-show-function windows (choice (const nil) function))
 426              (next-screen-context-lines windows integer)
 427              (scroll-preserve-screen-position
 428               windows (choice
 429                        (const :tag "Off (nil)" :value nil)
 430                        (const :tag "Full screen (t)" :value t)
 431                        (other :tag "Always" 1)) "22.1")
 432              (recenter-redisplay
 433               windows (choice
 434                        (const :tag "Never (nil)" :value nil)
 435                        (const :tag "Only on ttys" :value tty)
 436                        (other :tag "Always" t)) "23.1")
 437              (window-combination-resize windows boolean "24.1")
 438              (window-combination-limit
 439               windows (choice
 440                        (const :tag "Never (nil)" :value nil)
 441                        (const :tag "For Temp Buffer Resize mode (temp-buffer-resize)"
 442                               :value temp-buffer-resize)
 443                        (const :tag "For temporary buffers (temp-buffer)"
 444                               :value temp-buffer)
 445                        (const :tag "For buffer display (display-buffer)"
 446                               :value display-buffer)
 447                        (other :tag "Always (t)" :value t))
 448               "24.3")
 449              ;; xdisp.c
 450              (show-trailing-whitespace whitespace-faces boolean nil
 451                                        :safe booleanp)
 452              (scroll-step windows integer)
 453              (scroll-conservatively windows integer)
 454              (scroll-margin windows integer)
 455              (hscroll-margin windows integer "22.1")
 456              (hscroll-step windows number "22.1")
 457              (truncate-partial-width-windows display boolean "23.1")
 458              (make-cursor-line-fully-visible windows boolean)
 459              (mode-line-in-non-selected-windows mode-line boolean "22.1")
 460              (line-number-display-limit display
 461                                         (choice integer
 462                                                 (const :tag "No limit" nil)))
 463              (line-number-display-limit-width display integer "22.1")
 464              (highlight-nonselected-windows display boolean)
 465              (message-log-max debug (choice (const :tag "Disable" nil)
 466                                             (integer :menu-tag "lines"
 467                                                      :format "%v")
 468                                             (other :tag "Unlimited" t))
 469                               "24.3")
 470              (unibyte-display-via-language-environment mule boolean)
 471              (blink-cursor-alist cursor alist "22.1")
 472              (overline-margin display integer "22.1")
 473              (underline-minimum-offset display integer "23.1")
 474              (mouse-autoselect-window
 475               display (choice
 476                        (const :tag "Off (nil)" :value nil)
 477                        (const :tag "Immediate" :value t)
 478                        (number :tag "Delay by secs" :value 0.5)) "22.1")
 479              (tool-bar-style
 480               frames (choice
 481                       (const :tag "Images" :value image)
 482                       (const :tag "Text" :value text)
 483                       (const :tag "Both" :value both)
 484                       (const :tag "Both-horiz" :value both-horiz)
 485                       (const :tag "Text-image-horiz" :value text-image-horiz)
 486                       (const :tag "System default" :value nil)) "24.1")
 487              (tool-bar-max-label-size frames integer "24.1")
 488              (auto-hscroll-mode scrolling boolean "21.1")
 489              (void-text-area-pointer cursor
 490                                      (choice
 491                                       (const :tag "Standard (text pointer)" :value nil)
 492                                       (const :tag "Arrow" :value arrow)
 493                                       (const :tag "Text pointer" :value text)
 494                                       (const :tag "Hand" :value hand)
 495                                       (const :tag "Vertical dragger" :value vdrag)
 496                                       (const :tag "Horizontal dragger" :value hdrag)
 497                                       (const :tag "Same as mode line" :value modeline)
 498                                       (const :tag "Hourglass" :value hourglass)))
 499              (display-hourglass cursor boolean)
 500              (hourglass-delay cursor number)
 501
 502              ;; xfaces.c
 503              (scalable-fonts-allowed display boolean "22.1")
 504              ;; xfns.c
 505              (x-bitmap-file-path installation
 506                                  (repeat (directory :format "%v")))
 507              (x-gtk-use-old-file-dialog menu boolean "22.1")
 508              (x-gtk-show-hidden-files menu boolean "22.1")
 509              (x-gtk-file-dialog-help-text menu boolean "22.1")
 510              (x-gtk-whole-detached-tool-bar x boolean "22.1")
 511              (x-gtk-use-system-tooltips tooltip boolean "23.3")
 512              ;; xterm.c
 513              (x-use-underline-position-properties display boolean "22.1")
 514              (x-underline-at-descent-line display boolean "22.1")
 515              (x-stretch-cursor display boolean "21.1")
 516              ;; xselect.c
 517              (x-select-enable-clipboard-manager killing boolean "24.1")
 518              ;; xsettings.c
 519              (font-use-system-font font-selection boolean "23.2")))
 520       this symbol group type standard version native-p rest prop propval
 521       ;; This function turns a value
 522       ;; into an expression which produces that value.
 523       (quoter (lambda (sexp)
 524                 (if (or (memq sexp '(t nil))
 525                         (keywordp sexp)
 526                         (and (listp sexp)
 527                              (memq (car sexp) '(lambda)))
 528                         (stringp sexp)
 529                         (numberp sexp))
 530                     sexp
 531                   (list 'quote sexp)))))
 532   (while all
 533     (setq this (car all)
 534           all (cdr all)
 535           symbol (nth 0 this)
 536           group (nth 1 this)
 537           type (nth 2 this)
 538           version (nth 3 this)
 539           rest (nthcdr 4 this)
 540           ;; If we did not specify any standard value expression above,
 541           ;; use the current value as the standard value.
 542           standard (if (setq prop (memq :standard rest))
 543                        (cadr prop)
 544                      (if (default-boundp symbol)
 545                          (funcall quoter (default-value symbol))))
 546           ;; Don't complain about missing variables which are
 547           ;; irrelevant to this platform.
 548           native-p (save-match-data
 549                      (cond
 550                       ((string-match "\\`dos-" (symbol-name symbol))
 551                        (eq system-type 'ms-dos))
 552                       ((string-match "\\`w32-" (symbol-name symbol))
 553                        (eq system-type 'windows-nt))
 554                       ((string-match "\\`ns-" (symbol-name symbol))
 555                        (featurep 'ns))
 556                       ((string-match "\\`x-.*gtk" (symbol-name symbol))
 557                        (featurep 'gtk))
 558                       ((string-match "clipboard-manager" (symbol-name symbol))
 559                        (boundp 'x-select-enable-clipboard-manager))
 560                       ((string-match "\\`x-" (symbol-name symbol))
 561                        (fboundp 'x-create-frame))
 562                       ((string-match "selection" (symbol-name symbol))
 563                        (fboundp 'x-selection-exists-p))
 564                       ((string-match "fringe" (symbol-name symbol))
 565                        (fboundp 'define-fringe-bitmap))
 566                       ((string-match "\\`imagemagick" (symbol-name symbol))
 567                        (fboundp 'imagemagick-types))
 568                       ((equal "font-use-system-font" (symbol-name symbol))
 569                        (featurep 'system-font-setting))
 570                       ;; Conditioned on x-create-frame, because that's
 571                       ;; the condition for loadup.el to preload tool-bar.el.
 572                       ((string-match "tool-bar-" (symbol-name symbol))
 573                        (fboundp 'x-create-frame))
 574                       ((equal "vertical-centering-font-regexp"
 575                               (symbol-name symbol))
 576                        ;; Any function from fontset.c will do.
 577                        (fboundp 'new-fontset))
 578                       (t t))))
 579     (if (not (boundp symbol))
 580         ;; If variables are removed from C code, give an error here!
 581         (and native-p
 582              (message "Note, built-in variable `%S' not bound" symbol))
 583       ;; Save the standard value, unless we already did.
 584       (or (get symbol 'standard-value)
 585           (put symbol 'standard-value (list standard)))
 586       ;; We need these properties independent of whether cus-start is loaded.
 587       (if (setq prop (memq :safe rest))
 588           (put symbol 'safe-local-variable (cadr prop)))
 589       (if (setq prop (memq :risky rest))
 590           (put symbol 'risky-local-variable (cadr prop)))
 591       (if (setq prop (memq :set rest))
 592           (put symbol 'custom-set (cadr prop)))
 593       ;; Note this is the _only_ initialize property we handle.
 594       (if (eq (cadr (memq :initialize rest)) 'custom-initialize-delay)
 595           (push symbol custom-delayed-init-variables))
 596       ;; If this is NOT while dumping Emacs, set up the rest of the
 597       ;; customization info.  This is the stuff that is not needed
 598       ;; until someone does M-x customize etc.
 599       (unless purify-flag
 600         ;; Add it to the right group(s).
 601         (if (listp group)
 602             (dolist (g group)
 603               (custom-add-to-group g symbol 'custom-variable))
 604           (custom-add-to-group group symbol 'custom-variable))
 605         ;; Set the type.
 606         (put symbol 'custom-type type)
 607         (if version (put symbol 'custom-version version))
 608         (while rest
 609           (setq prop (car rest)
 610                 propval (cadr rest)
 611                 rest (nthcdr 2 rest))
 612           (cond ((memq prop '(:standard :risky :safe :set))) ; handled above
 613                 ((eq prop :tag)
 614                  (put symbol 'custom-tag propval))))))))
 615
 616 (custom-add-to-group 'iswitchb 'read-buffer-function 'custom-variable)
 617 (custom-add-to-group 'font-lock 'open-paren-in-column-0-is-defun-start
 618                      'custom-variable)
 619
 620 ;; Record cus-start as loaded if we have set up all the info that we can.
 621 ;; Don't record it as loaded if we have only set up the standard values
 622 ;; and safe/risky properties.
 623 (unless purify-flag
 624   (provide 'cus-start))
 625
 626 ;;; cus-start.el ends here