lisp/cus-start.el

   1 ;;; cus-start.el --- define customization properties of builtins  -*- lexical-binding:t -*-
   2
   3 ;; Copyright (C) 1997, 1999-2015 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 (defun minibuffer-prompt-properties--setter (symbol value)
  37   (set-default symbol value)
  38   (if (memq 'cursor-intangible value)
  39       (add-hook 'minibuffer-setup-hook 'cursor-intangible-mode)
  40     ;; Removing it is a bit trickier since it could have been added by someone
  41     ;; else as well, so let's just not bother.
  42     ))
  43
  44 ;; Elements of this list have the form:
  45 ;; SYMBOL GROUP TYPE VERSION REST...
  46 ;; SYMBOL is the name of the variable.
  47 ;; GROUP is the custom group to which it belongs (may also be a list
  48 ;; of groups)
  49 ;; TYPE is the defcustom :type.
  50 ;; VERSION is the defcustom :version (or nil).
  51 ;; REST is a set of :KEYWORD VALUE pairs.  Accepted :KEYWORDs are:
  52 ;; :standard - standard value for SYMBOL (else use current value)
  53 ;; :set - custom-set property
  54 ;; :risky - risky-local-variable property
  55 ;; :safe - safe-local-variable property
  56 ;; :tag - custom-tag property
  57 (let (standard native-p prop propval
  58       ;; This function turns a value
  59       ;; into an expression which produces that value.
  60       (quoter (lambda (sexp)
  61                 ;; FIXME: We'd like to use macroexp-quote here, but cus-start
  62                 ;; is loaded too early in loadup.el for that.
  63                 (if (or (memq sexp '(t nil))
  64                         (keywordp sexp)
  65                         (and (listp sexp)
  66                              (memq (car sexp) '(lambda)))
  67                         (stringp sexp)
  68                         (numberp sexp))
  69                     sexp
  70                   (list 'quote sexp)))))
  71   (pcase-dolist
  72       (`(,symbol ,group ,type ,version . ,rest)
  73            '(;; alloc.c
  74              (gc-cons-threshold alloc integer)
  75              (gc-cons-percentage alloc float)
  76              (garbage-collection-messages alloc boolean)
  77              ;; buffer.c
  78              (cursor-type
  79               display
  80               (choice
  81                (const :tag "Frame default" t)
  82                (const :tag "Filled box" box)
  83                (const :tag "Hollow cursor" hollow)
  84                (const :tag "Vertical bar" bar)
  85                (cons  :tag "Vertical bar with specified width"
  86                       (const bar) integer)
  87                (const :tag "Horizontal bar" hbar)
  88                (cons  :tag "Horizontal bar with specified width"
  89                       (const hbar) integer)
  90                (const :tag "None "nil)))
  91              (mode-line-format mode-line sexp) ;Hard to do right.
  92              (major-mode internal function)
  93              (case-fold-search matching boolean)
  94              (fill-column fill integer)
  95              (left-margin fill integer)
  96              (tab-width editing-basics integer)
  97              (ctl-arrow display boolean)
  98              (truncate-lines display boolean)
  99              (word-wrap display boolean)
 100              (selective-display-ellipses display boolean)
 101              (indicate-empty-lines fringe boolean)
 102              (indicate-buffer-boundaries
 103               fringe
 104               (choice
 105                (const :tag "No indicators" nil)
 106                (const :tag "On left, with arrows" left)
 107                (const :tag "On right, with arrows" right)
 108                (set :tag "Pick your own design"
 109                     :value ((t . nil))
 110                     :format "%{%t%}:\n%v\n%d"
 111                     :doc "You can specify a default and then override it \
 112 for individual indicators.
 113 Leaving \"Default\" unchecked is equivalent with specifying a default of
 114 \"Do not show\"."
 115                     (choice :tag "Default"
 116                             :value (t . nil)
 117                             (const :tag "Do not show" (t . nil))
 118                             (const :tag "On the left" (t . left))
 119                             (const :tag "On the right" (t . right)))
 120                     (choice :tag "Top"
 121                             :value (top . left)
 122                             (const :tag "Do not show" (top . nil))
 123                             (const :tag "On the left" (top . left))
 124                             (const :tag "On the right" (top . right)))
 125                     (choice :tag "Bottom"
 126                             :value (bottom . left)
 127                             (const :tag "Do not show" (bottom . nil))
 128                             (const :tag "On the left" (bottom . left))
 129                             (const :tag "On the right" (bottom . right)))
 130                     (choice :tag "Up arrow"
 131                             :value (up . left)
 132                             (const :tag "Do not show" (up . nil))
 133                             (const :tag "On the left" (up . left))
 134                             (const :tag "On the right" (up . right)))
 135                     (choice :tag "Down arrow"
 136                             :value (down . left)
 137                             (const :tag "Do not show" (down . nil))
 138                             (const :tag "On the left" (down . left))
 139                             (const :tag "On the right" (down . right))))
 140                (other :tag "On left, no arrows" t)))
 141              (scroll-up-aggressively windows
 142                                      (choice (const :tag "off" nil) float)
 143                                      "21.1")
 144              (scroll-down-aggressively windows
 145                                        (choice (const :tag "off" nil) float)
 146                                        "21.1")
 147              (line-spacing display (choice (const :tag "none" nil) number)
 148                            "22.1")
 149              (cursor-in-non-selected-windows
 150               cursor boolean nil
 151               :tag "Cursor In Non-selected Windows"
 152               :set (lambda (symbol value)
 153                      (set-default symbol value)
 154                      (force-mode-line-update t)))
 155              (transient-mark-mode editing-basics boolean nil
 156                                   :standard (not noninteractive)
 157                                   :initialize custom-initialize-delay
 158                                   :set custom-set-minor-mode)
 159              (bidi-paragraph-direction
 160               paragraphs
 161               (choice
 162                (const :tag "Left to Right" left-to-right)
 163                (const :tag "Right to Left" right-to-left)
 164                (const :tag "Dynamic, according to paragraph text" nil))
 165               "24.1")
 166              ;; callint.c
 167              (mark-even-if-inactive editing-basics boolean)
 168              ;; callproc.c
 169              (shell-file-name execute file)
 170              (exec-path execute
 171                         (repeat (choice (const :tag "default directory" nil)
 172                                         (directory :format "%v"))))
 173              (exec-suffixes execute (repeat string))
 174              ;; charset.c
 175              (charset-map-path installation
 176                                (repeat (directory :format "%v")))
 177              ;; coding.c
 178              (inhibit-eol-conversion mule boolean)
 179              (eol-mnemonic-undecided mule string)
 180              ;; startup.el fiddles with the values.  IMO, would be
 181              ;; simpler to just use #ifdefs in coding.c.
 182              (eol-mnemonic-unix mule string nil
 183                                 :standard
 184                                 (if (memq system-type '(ms-dos windows-nt))
 185                                     "(Unix)" ":"))
 186              (eol-mnemonic-dos mule string nil
 187                                :standard
 188                                (if (memq system-type '(ms-dos windows-nt))
 189                                    "\\" "(DOS)"))
 190              (eol-mnemonic-mac mule string nil
 191                                :standard "(Mac)")
 192              (file-coding-system-alist
 193               mule
 194               (alist
 195                :key-type (regexp :tag "File regexp")
 196                :value-type (choice
 197                             :value (undecided . undecided)
 198                             (cons :tag "Encoding/decoding pair"
 199                                   :value (undecided . undecided)
 200                                   (coding-system :tag "Decoding")
 201                                   (coding-system :tag "Encoding"))
 202                             (coding-system
 203                              :tag "Single coding system"
 204                              :value undecided
 205                              :match (lambda (widget value)
 206                                       (and value (not (functionp value)))))
 207                             (function :value ignore))))
 208              ;; dired.c
 209              (completion-ignored-extensions dired
 210                                             (repeat (string :format "%v")))
 211              ;; dispnew.c
 212              (baud-rate display integer)
 213              (inverse-video display boolean)
 214              (visible-bell display boolean)
 215              (no-redraw-on-reenter display boolean)
 216
 217              ;; dosfns.c
 218              (dos-display-scancodes display boolean)
 219              (dos-hyper-key keyboard integer)
 220              (dos-super-key keyboard integer)
 221              (dos-keypad-mode keyboard integer)
 222
 223              ;; editfns.c
 224              (user-full-name mail string)
 225              ;; emacs.c
 226              (report-emacs-bug-address emacsbug string)
 227              ;; eval.c
 228              (max-specpdl-size limits integer)
 229              (max-lisp-eval-depth limits integer)
 230              (max-mini-window-height limits
 231                                      (choice (const :tag "quarter screen" nil)
 232                                              number) "23.1")
 233              (debug-on-error debug
 234                              (choice (const :tag "off")
 235                                      (repeat :menu-tag "When"
 236                                              :value (nil)
 237                                              (symbol :format "%v"))
 238                                      (const :tag "always" t)))
 239              (debug-ignored-errors debug (repeat (choice symbol regexp)))
 240              (debug-on-quit debug boolean)
 241              (debug-on-signal debug boolean)
 242              ;; fileio.c
 243              (delete-by-moving-to-trash auto-save boolean "23.1")
 244              (auto-save-visited-file-name auto-save boolean)
 245              ;; filelock.c
 246              (create-lockfiles files boolean "24.3")
 247              (temporary-file-directory
 248               ;; Darwin section added 24.1, does not seem worth :version bump.
 249               files directory nil
 250               :standard
 251               (file-name-as-directory
 252                ;; FIXME ? Should there be Ftemporary_file_directory to do this
 253                ;; more robustly (cf set_local_socket in emacsclient.c).
 254                ;; It could be used elsewhere, eg Fcall_process_region,
 255                ;; server-socket-dir.  See bug#7135.
 256                (cond ((memq system-type '(ms-dos windows-nt))
 257                       (or (getenv "TEMP") (getenv "TMPDIR") (getenv "TMP")
 258                           "c:/temp"))
 259                      ((eq system-type 'darwin)
 260                       (or (getenv "TMPDIR") (getenv "TMP") (getenv "TEMP")
 261                           ;; See bug#7135.
 262                           (let ((tmp (ignore-errors
 263                                        (shell-command-to-string
 264                                         "getconf DARWIN_USER_TEMP_DIR"))))
 265                             (and (stringp tmp)
 266                                  (setq tmp (replace-regexp-in-string
 267                                             "\n\\'" "" tmp))
 268                                  ;; Handles "getconf: Unrecognized variable..."
 269                                  (file-directory-p tmp)
 270                                  tmp))
 271                           "/tmp"))
 272                      (t
 273                       (or (getenv "TMPDIR") (getenv "TMP") (getenv "TEMP")
 274                           "/tmp"))))
 275               :initialize custom-initialize-delay)
 276              ;; fns.c
 277              (use-dialog-box menu boolean "21.1")
 278              (use-file-dialog menu boolean "22.1")
 279              (focus-follows-mouse frames boolean "20.3")
 280              ;; fontset.c
 281              ;; FIXME nil is the initial value, fontset.el setqs it.
 282              (vertical-centering-font-regexp display
 283                                              (choice (const nil) regexp))
 284              ;; frame.c
 285              (default-frame-alist frames
 286                (repeat (cons :format "%v"
 287                              (symbol :tag "Parameter")
 288                              (sexp :tag "Value"))))
 289              (mouse-highlight mouse (choice (const :tag "disabled" nil)
 290                                             (const :tag "always shown" t)
 291                                             (other :tag "hidden by keypress" 1))
 292                               "22.1")
 293              (make-pointer-invisible mouse boolean "23.2")
 294              (menu-bar-mode frames boolean nil
 295                             ;; FIXME?
 296                             ;; :initialize custom-initialize-default
 297                             :set custom-set-minor-mode)
 298              (tool-bar-mode (frames mouse) boolean nil
 299                             ;; :initialize custom-initialize-default
 300                             :set custom-set-minor-mode)
 301              (frame-resize-pixelwise frames boolean "24.4")
 302              (frame-inhibit-implied-resize frames
 303                                            (choice
 304                                             (const :tag "Never" nil)
 305                                             (const :tag "Always" t)
 306                                             (repeat (symbol :tag "Parameter")))
 307                                            "25.1")
 308              ;; fringe.c
 309              (overflow-newline-into-fringe fringe boolean)
 310              ;; image.c
 311              (imagemagick-render-type image integer "24.1")
 312              ;; indent.c
 313              (indent-tabs-mode indent boolean)
 314              ;; keyboard.c
 315              (meta-prefix-char keyboard character)
 316              (auto-save-interval auto-save integer)
 317              (auto-save-timeout auto-save (choice (const :tag "off" nil)
 318                                                   (integer :format "%v")))
 319              (echo-keystrokes minibuffer number)
 320              (polling-period keyboard integer)
 321              (double-click-time mouse (restricted-sexp
 322                                        :match-alternatives (integerp 'nil 't)))
 323              (double-click-fuzz mouse integer "22.1")
 324              (help-char keyboard character)
 325              (help-event-list keyboard (repeat (sexp :format "%v")))
 326              (menu-prompting menu boolean)
 327              (select-active-regions killing
 328                                     (choice (const :tag "always" t)
 329                                             (const :tag "only shift-selection or mouse-drag" only)
 330                                             (const :tag "off" nil))
 331                                     "24.1")
 332              (debug-on-event debug
 333                              (choice (const :tag "None" nil)
 334                                      (const :tag "When sent SIGUSR1" sigusr1)
 335                                      (const :tag "When sent SIGUSR2" sigusr2))
 336                              "24.1")
 337
 338              ;; This is not good news because it will use the wrong
 339              ;; version-specific directories when you upgrade.  We need
 340              ;; customization of the front of the list, maintaining the
 341              ;; standard value intact at the back.
 342              ;;(load-path environment
 343              ;;         (repeat (choice :tag "[Current dir?]"
 344              ;;                         :format "%[Current dir?%] %v"
 345              ;;                         (const :tag " current dir" nil)
 346              ;;                         (directory :format "%v"))))
 347              (load-prefer-newer lisp boolean "24.4")
 348              ;; minibuf.c
 349              (enable-recursive-minibuffers minibuffer boolean)
 350              (history-length minibuffer
 351                              (choice (const :tag "Infinite" t) integer)
 352                              "24.5")    ; 30 -> 100
 353              (history-delete-duplicates minibuffer boolean "22.1")
 354              (read-buffer-completion-ignore-case minibuffer boolean "23.1")
 355
 356              (minibuffer-prompt-properties
 357               minibuffer
 358               (list
 359                (checklist :inline t
 360                           (const :tag "Read-Only"
 361                                  :doc "Prevent prompt from being modified"
 362                                  :format "%t%n%h"
 363                                  :inline t
 364                                  (read-only t))
 365                           (const :tag "Don't Enter"
 366                                  :doc "Prevent point from ever entering prompt"
 367                                  :format "%t%n%h"
 368                                  :inline t
 369                                  (cursor-intangible t)))
 370                (repeat :inline t
 371                        :tag "Other Properties"
 372                        (list :inline t
 373                              :format "%v"
 374                              (symbol :tag "Property")
 375                              (sexp :tag "Value"))))
 376               "21.1"
 377               :set minibuffer-prompt-properties--setter)
 378              (minibuffer-auto-raise minibuffer boolean)
 379              ;; options property set at end
 380              (read-buffer-function minibuffer
 381                                    (choice (const nil)
 382                                            function))
 383              ;; msdos.c
 384              (dos-unsupported-char-glyph display integer)
 385              ;; nsterm.m
 386              (ns-control-modifier
 387               ns
 388               (choice (const :tag "No modifier" nil)
 389                       (const control) (const meta)
 390                       (const alt) (const hyper)
 391                       (const super)) "23.1")
 392              (ns-right-control-modifier
 393               ns
 394               (choice (const :tag "No modifier (work as control)" none)
 395                       (const :tag "Use the value of ns-control-modifier"
 396                              left)
 397                       (const control) (const meta)
 398                       (const alt) (const hyper)
 399                       (const super)) "24.1")
 400              (ns-command-modifier
 401               ns
 402               (choice (const :tag "No modifier" nil)
 403                       (const control) (const meta)
 404                       (const alt) (const hyper)
 405                       (const super)) "23.1")
 406              (ns-right-command-modifier
 407               ns
 408               (choice (const :tag "No modifier (work as command)" none)
 409                       (const :tag "Use the value of ns-command-modifier"
 410                              left)
 411                       (const control) (const meta)
 412                       (const alt) (const hyper)
 413                       (const super)) "24.1")
 414              (ns-alternate-modifier
 415               ns
 416               (choice (const :tag "No modifier (work as alternate/option)" none)
 417                       (const control) (const meta)
 418                       (const alt) (const hyper)
 419                       (const super)) "23.1")
 420              (ns-right-alternate-modifier
 421               ns
 422               (choice (const :tag "No modifier (work as alternate/option)" none)
 423                       (const :tag "Use the value of ns-alternate-modifier"
 424                              left)
 425                       (const control) (const meta)
 426                       (const alt) (const hyper)
 427                       (const super)) "23.3")
 428              (ns-function-modifier
 429               ns
 430               (choice (const :tag "No modifier (work as function)" none)
 431                       (const control) (const meta)
 432                       (const alt) (const hyper)
 433                       (const super)) "23.1")
 434              (ns-antialias-text ns boolean "23.1")
 435              (ns-auto-hide-menu-bar ns boolean "24.1")
 436              (ns-use-native-fullscreen ns boolean "24.4")
 437              (ns-use-fullscreen-animation ns boolean "25.1")
 438              (ns-use-srgb-colorspace ns boolean "24.4")
 439              ;; process.c
 440              (delete-exited-processes processes-basics boolean)
 441              ;; syntax.c
 442              (parse-sexp-ignore-comments editing-basics boolean)
 443              (words-include-escapes editing-basics boolean)
 444              (open-paren-in-column-0-is-defun-start editing-basics boolean
 445                                                     "21.1")
 446              ;; term.c
 447              (visible-cursor cursor boolean "22.1")
 448              ;; terminal.c
 449              (ring-bell-function display
 450               (choice
 451                (const :tag "Default" nil)
 452                (const :tag "Silent" ignore)
 453                function))
 454              ;; undo.c
 455              (undo-limit undo integer)
 456              (undo-strong-limit undo integer)
 457              (undo-outer-limit undo
 458                                (choice integer
 459                                        (const :tag "No limit"
 460                                               :format "%t\n%d"
 461                                               :doc
 462                                               "With this choice, \
 463 the undo info for the current command never gets discarded.
 464 This should only be chosen under exceptional circumstances,
 465 since it could result in memory overflow and make Emacs crash."
 466                                               nil))
 467                                "22.1")
 468              ;; window.c
 469              (temp-buffer-show-function windows (choice (const nil) function))
 470              (next-screen-context-lines windows integer)
 471              (scroll-preserve-screen-position
 472               windows (choice
 473                        (const :tag "Off (nil)" :value nil)
 474                        (const :tag "Full screen (t)" :value t)
 475                        (other :tag "Always" 1)) "22.1")
 476              (recenter-redisplay
 477               windows (choice
 478                        (const :tag "Never (nil)" :value nil)
 479                        (const :tag "Only on ttys" :value tty)
 480                        (other :tag "Always" t)) "23.1")
 481              (window-combination-resize windows boolean "24.1")
 482              (window-combination-limit
 483               windows (choice
 484                        (const :tag "Never (nil)" :value nil)
 485                        (const :tag "For Temp Buffer Resize mode (temp-buffer-resize)"
 486                               :value temp-buffer-resize)
 487                        (const :tag "For temporary buffers (temp-buffer)"
 488                               :value temp-buffer)
 489                        (const :tag "For buffer display (display-buffer)"
 490                               :value display-buffer)
 491                        (other :tag "Always (t)" :value t))
 492               "24.3")
 493              (fast-but-imprecise-scrolling scrolling boolean "25.1")
 494              (window-resize-pixelwise windows boolean "24.4")
 495              ;; xdisp.c
 496              ;; The whitespace group is for whitespace.el.
 497              (show-trailing-whitespace editing-basics boolean nil
 498                                        :safe booleanp)
 499              (scroll-step windows integer)
 500              (scroll-conservatively windows integer)
 501              (scroll-margin windows integer)
 502              (hscroll-margin windows integer "22.1")
 503              (hscroll-step windows number "22.1")
 504              (truncate-partial-width-windows
 505               display
 506               (choice (integer :tag "Truncate if narrower than")
 507                       (const :tag "Respect `truncate-lines'" nil)
 508                       (other :tag "Truncate if not full-width" t))
 509               "23.1")
 510              (make-cursor-line-fully-visible windows boolean)
 511              (mode-line-in-non-selected-windows mode-line boolean "22.1")
 512              (line-number-display-limit display
 513                                         (choice integer
 514                                                 (const :tag "No limit" nil)))
 515              (line-number-display-limit-width display integer "22.1")
 516              (highlight-nonselected-windows display boolean)
 517              (message-log-max debug (choice (const :tag "Disable" nil)
 518                                             (integer :menu-tag "lines"
 519                                                      :format "%v")
 520                                             (other :tag "Unlimited" t))
 521                               "24.3")
 522              (unibyte-display-via-language-environment mule boolean)
 523              (blink-cursor-alist cursor alist "22.1")
 524              (overline-margin display integer "22.1")
 525              (underline-minimum-offset display integer "23.1")
 526              (mouse-autoselect-window
 527               display (choice
 528                        (const :tag "Off (nil)" :value nil)
 529                        (const :tag "Immediate" :value t)
 530                        (number :tag "Delay by secs" :value 0.5)) "22.1")
 531              (tool-bar-style
 532               frames (choice
 533                       (const :tag "Images" :value image)
 534                       (const :tag "Text" :value text)
 535                       (const :tag "Both" :value both)
 536                       (const :tag "Both-horiz" :value both-horiz)
 537                       (const :tag "Text-image-horiz" :value text-image-horiz)
 538                       (const :tag "System default" :value nil)) "24.1")
 539              (tool-bar-max-label-size frames integer "24.1")
 540              (auto-hscroll-mode scrolling boolean "21.1")
 541              (void-text-area-pointer cursor
 542                                      (choice
 543                                       (const :tag "Standard (text pointer)" :value nil)
 544                                       (const :tag "Arrow" :value arrow)
 545                                       (const :tag "Text pointer" :value text)
 546                                       (const :tag "Hand" :value hand)
 547                                       (const :tag "Vertical dragger" :value vdrag)
 548                                       (const :tag "Horizontal dragger" :value hdrag)
 549                                       (const :tag "Same as mode line" :value modeline)
 550                                       (const :tag "Hourglass" :value hourglass)))
 551              (display-hourglass cursor boolean)
 552              (hourglass-delay cursor number)
 553              (resize-mini-windows
 554               windows (choice
 555                        (const :tag "Off (nil)" :value nil)
 556                        (const :tag "Fit (t)" :value t)
 557                        (const :tag "Grow only" :value grow-only))
 558               "25.1")
 559              ;; xfaces.c
 560              (scalable-fonts-allowed display boolean "22.1")
 561              ;; xfns.c
 562              (x-bitmap-file-path installation
 563                                  (repeat (directory :format "%v")))
 564              (x-gtk-use-old-file-dialog menu boolean "22.1")
 565              (x-gtk-show-hidden-files menu boolean "22.1")
 566              (x-gtk-file-dialog-help-text menu boolean "22.1")
 567              (x-gtk-use-system-tooltips tooltip boolean "23.3")
 568              ;; xterm.c
 569              (x-use-underline-position-properties display boolean "22.1")
 570              (x-underline-at-descent-line display boolean "22.1")
 571              (x-stretch-cursor display boolean "21.1")
 572              (scroll-bar-adjust-thumb-portion windows boolean "24.4")
 573              ;; xselect.c
 574              (x-select-enable-clipboard-manager killing boolean "24.1")
 575              ;; xsettings.c
 576              (font-use-system-font font-selection boolean "23.2")))
 577     (setq ;; If we did not specify any standard value expression above,
 578           ;; use the current value as the standard value.
 579           standard (if (setq prop (memq :standard rest))
 580                        (cadr prop)
 581                      (if (default-boundp symbol)
 582                          (funcall quoter (default-value symbol))))
 583           ;; Don't complain about missing variables which are
 584           ;; irrelevant to this platform.
 585           native-p (save-match-data
 586                      (cond
 587                       ((string-match "\\`dos-" (symbol-name symbol))
 588                        (eq system-type 'ms-dos))
 589                       ((string-match "\\`w32-" (symbol-name symbol))
 590                        (eq system-type 'windows-nt))
 591                       ((string-match "\\`ns-" (symbol-name symbol))
 592                        (featurep 'ns))
 593                       ((string-match "\\`x-.*gtk" (symbol-name symbol))
 594                        (featurep 'gtk))
 595                       ((string-match "clipboard-manager" (symbol-name symbol))
 596                        (boundp 'x-select-enable-clipboard-manager))
 597                       ((string-match "\\`x-" (symbol-name symbol))
 598                        (fboundp 'x-create-frame))
 599                       ((string-match "selection" (symbol-name symbol))
 600                        (fboundp 'x-selection-exists-p))
 601                       ((string-match "fringe" (symbol-name symbol))
 602                        (fboundp 'define-fringe-bitmap))
 603                       ((string-match "\\`imagemagick" (symbol-name symbol))
 604                        (fboundp 'imagemagick-types))
 605                       ((equal "font-use-system-font" (symbol-name symbol))
 606                        (featurep 'system-font-setting))
 607                       ;; Conditioned on x-create-frame, because that's
 608                       ;; the condition for loadup.el to preload tool-bar.el.
 609                       ((string-match "tool-bar-" (symbol-name symbol))
 610                        (fboundp 'x-create-frame))
 611                       ((equal "vertical-centering-font-regexp"
 612                               (symbol-name symbol))
 613                        ;; Any function from fontset.c will do.
 614                        (fboundp 'new-fontset))
 615                       ((equal "scroll-bar-adjust-thumb-portion"
 616                               (symbol-name symbol))
 617                        (featurep 'x))
 618                       (t t))))
 619     (if (not (boundp symbol))
 620         ;; If variables are removed from C code, give an error here!
 621         (and native-p
 622              (message "Note, built-in variable `%S' not bound" symbol))
 623       ;; Save the standard value, unless we already did.
 624       (or (get symbol 'standard-value)
 625           (put symbol 'standard-value (list standard)))
 626       ;; We need these properties independent of whether cus-start is loaded.
 627       (if (setq prop (memq :safe rest))
 628           (put symbol 'safe-local-variable (cadr prop)))
 629       (if (setq prop (memq :risky rest))
 630           (put symbol 'risky-local-variable (cadr prop)))
 631       (if (setq prop (memq :set rest))
 632           (put symbol 'custom-set (cadr prop)))
 633       ;; Note this is the _only_ initialize property we handle.
 634       (if (eq (cadr (memq :initialize rest)) 'custom-initialize-delay)
 635           (push symbol custom-delayed-init-variables))
 636       ;; If this is NOT while dumping Emacs, set up the rest of the
 637       ;; customization info.  This is the stuff that is not needed
 638       ;; until someone does M-x customize etc.
 639       (unless purify-flag
 640         ;; Add it to the right group(s).
 641         (if (listp group)
 642             (dolist (g group)
 643               (custom-add-to-group g symbol 'custom-variable))
 644           (custom-add-to-group group symbol 'custom-variable))
 645         ;; Set the type.
 646         (put symbol 'custom-type type)
 647         (if version (put symbol 'custom-version version))
 648         (while rest
 649           (setq prop (car rest)
 650                 propval (cadr rest)
 651                 rest (nthcdr 2 rest))
 652           (cond ((memq prop '(:standard :risky :safe :set))) ; handled above
 653                 ((eq prop :tag)
 654                  (put symbol 'custom-tag propval))))))))
 655
 656 (custom-add-to-group 'font-lock 'open-paren-in-column-0-is-defun-start
 657                      'custom-variable)
 658
 659 ;; Record cus-start as loaded if we have set up all the info that we can.
 660 ;; Don't record it as loaded if we have only set up the standard values
 661 ;; and safe/risky properties.
 662 (unless purify-flag
 663   (provide 'cus-start))
 664
 665 ;;; cus-start.el ends here