lisp/cus-start.el

   1 ;;; cus-start.el --- define customization properties of builtins
   2 ;;
   3 ;; Copyright (C) 1997, 1999, 2000, 2001, 2002, 2003, 2004,
   4 ;;   2005 Free Software Foundation, Inc.
   5 ;;
   6 ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
   7 ;; Keywords: internal
   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 2, or (at your option)
  14 ;; 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; see the file COPYING.  If not, write to the
  23 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  24 ;; Boston, MA 02110-1301, USA.
  25
  26 ;;; Commentary:
  27 ;;
  28 ;; This file adds customize support for built-in variables.
  29
  30 ;; While dumping Emacs, this file is loaded, but it only records
  31 ;; the standard values; it does not do the rest of the job.
  32 ;; Later on, if the user makes a customization buffer,
  33 ;; this file is loaded again with (require 'cus-start);
  34 ;; then it does the whole job.
  35
  36 ;;; Code:
  37
  38 (let ((all '(;; abbrev.c
  39              (abbrev-all-caps abbrev-mode boolean)
  40              (pre-abbrev-expand-hook abbrev-mode hook)
  41              ;; alloc.c
  42              (gc-cons-threshold alloc integer)
  43              (garbage-collection-messages alloc boolean)
  44              ;; buffer.c
  45              (mode-line-format modeline sexp) ;Hard to do right.
  46              (default-major-mode internal function)
  47              (enable-multibyte-characters mule boolean)
  48              (case-fold-search matching boolean)
  49              (fill-column fill integer)
  50              (left-margin fill integer)
  51              (tab-width editing-basics integer)
  52              (ctl-arrow display boolean)
  53              (truncate-lines display boolean)
  54              (selective-display-ellipses display boolean)
  55              (indicate-empty-lines fringe boolean "21.1")
  56              (indicate-buffer-boundaries
  57               fringe
  58               (choice
  59                (const :tag "No indicators" nil)
  60                (const :tag "On left, with arrows" left)
  61                (const :tag "On right, with arrows" right)
  62                (set :tag "Pick your own design"
  63                     :value ((t . nil))
  64                     :format "%{%t%}:\n%v\n%d"
  65                     :doc "You can specify a default and then override it \
  66 for individual indicators.
  67 Leaving \"Default\" unchecked is equivalent with specifying a default of
  68 \"Do not show\"."
  69                     (choice :tag "Default"
  70                             :value (t . nil)
  71                             (const :tag "Do not show" (t . nil))
  72                             (const :tag "On the left" (t . left))
  73                             (const :tag "On the right" (t . right)))
  74                     (choice :tag "Top"
  75                             :value (top . left)
  76                             (const :tag "Do not show" (top . nil))
  77                             (const :tag "On the left" (top . left))
  78                             (const :tag "On the right" (top . right)))
  79                     (choice :tag "Bottom"
  80                             :value (bottom . left)
  81                             (const :tag "Do not show" (bottom . nil))
  82                             (const :tag "On the left" (bottom . left))
  83                             (const :tag "On the right" (bottom . right)))
  84                     (choice :tag "Up arrow"
  85                             :value (up . left)
  86                             (const :tag "Do not show" (up . nil))
  87                             (const :tag "On the left" (up . left))
  88                             (const :tag "On the right" (up . right)))
  89                     (choice :tag "Down arrow"
  90                             :value (down . left)
  91                             (const :tag "Do not show" (down . nil))
  92                             (const :tag "On the left" (down . left))
  93                             (const :tag "On the right" (down . right))))
  94                (other :tag "On left, no arrows" t))
  95               "22.1")
  96              (scroll-up-aggressively windows
  97                                      (choice (const :tag "off" nil) number)
  98                                      "21.1")
  99              (scroll-down-aggressively windows
 100                                        (choice (const :tag "off" nil) number)
 101                                        "21.1")
 102              (line-spacing display (choice (const :tag "none" nil) integer))
 103              ;; callint.c
 104              (mark-even-if-inactive editing-basics boolean)
 105              ;; callproc.c
 106              (shell-file-name execute file)
 107              (exec-path execute
 108                         (repeat (choice (const :tag "default directory" nil)
 109                                         (directory :format "%v"))))
 110              ;; coding.c
 111              (inhibit-eol-conversion mule boolean)
 112              (eol-mnemonic-undecided mule string)
 113              (eol-mnemonic-unix mule string)
 114              (eol-mnemonic-dos mule string)
 115              (eol-mnemonic-mac mule string)
 116              (file-coding-system-alist
 117               mule
 118               (alist
 119                :key-type (regexp :tag "File regexp")
 120                :value-type (choice
 121                             :value (undecided . undecided)
 122                             (cons :tag "Encoding/decoding pair"
 123                                   :value (undecided . undecided)
 124                                   (coding-system :tag "Decoding")
 125                                   (coding-system :tag "Encoding"))
 126                             (coding-system :tag "Single coding system"
 127                                            :value undecided)
 128                             (function :value ignore))))
 129              (selection-coding-system mule coding-system)
 130              ;; dired.c
 131              (completion-ignored-extensions dired
 132                                             (repeat (string :format "%v")))
 133              ;; dispnew.c
 134              (baud-rate display integer)
 135              (inverse-video display boolean)
 136              (visible-bell display boolean)
 137              (no-redraw-on-reenter display boolean)
 138              ;; editfns.c
 139              (user-full-name mail string)
 140              ;; eval.c
 141              (max-specpdl-size limits integer)
 142              (max-lisp-eval-depth limits integer)
 143              (stack-trace-on-error debug
 144                                    (choice (const :tag "off")
 145                                            (repeat :menu-tag "When"
 146                                                    :value (nil)
 147                                                    (symbol :format "%v"))
 148                                            (const :tag "always" t)))
 149              (debug-on-error debug
 150                              (choice (const :tag "off")
 151                                      (repeat :menu-tag "When"
 152                                              :value (nil)
 153                                              (symbol :format "%v"))
 154                                      (const :tag "always" t)))
 155              (debug-ignored-errors debug (repeat (choice symbol regexp)))
 156              (debug-on-quit debug
 157                             (choice (const :tag "off")
 158                                     (repeat :menu-tag "When"
 159                                             :value (nil)
 160                                             (symbol :format "%v"))
 161                                     (const :tag "always" t)))
 162              ;; fileio.c
 163              (insert-default-directory minibuffer boolean)
 164              (read-file-name-completion-ignore-case minibuffer boolean "22.1")
 165              ;; fns.c
 166              (use-dialog-box menu boolean "21.1")
 167              (use-file-dialog menu boolean "22.1")
 168              ;; frame.c
 169              (default-frame-alist frames
 170                (repeat (cons :format "%v"
 171                              (symbol :tag "Parameter")
 172                              (sexp :tag "Value"))))
 173              (mouse-highlight mouse (choice (const :tag "disabled" nil)
 174                                             (const :tag "always shown" t)
 175                                             (other :tag "hidden by keypress" 1)))
 176              ;; fringe.c
 177              (overflow-newline-into-fringe fringe boolean "22.1")
 178              ;; indent.c
 179              (indent-tabs-mode fill boolean)
 180              ;; keyboard.c
 181              (meta-prefix-char keyboard character)
 182              (auto-save-interval auto-save integer)
 183              (auto-save-timeout auto-save (choice (const :tag "off" nil)
 184                                                   (integer :format "%v")))
 185              (echo-keystrokes minibuffer number)
 186              (polling-period keyboard integer)
 187              (double-click-time mouse (restricted-sexp
 188                                        :match-alternatives (integerp 'nil 't)))
 189              (double-click-fuzz mouse integer)
 190              (inhibit-local-menu-bar-menus menu boolean)
 191              (help-char keyboard character)
 192              (help-event-list keyboard (repeat (sexp :format "%v")))
 193              (menu-prompting menu boolean)
 194              (suggest-key-bindings keyboard (choice (const :tag "off" nil)
 195                                                     (integer :tag "time" 2)
 196                                                     (other :tag "on")))
 197
 198 ;; This is not good news because it will use the wrong
 199 ;; version-specific directories when you upgrade.  We need
 200 ;; customization of the front of the list, maintaining the standard
 201 ;; value intact at the back.
 202 ;;;          (load-path environment
 203 ;;;                     (repeat (choice :tag "[Current dir?]"
 204 ;;;                                     :format "%[Current dir?%] %v"
 205 ;;;                                     (const :tag " current dir" nil)
 206 ;;;                                     (directory :format "%v"))))
 207              ;; minibuf.c
 208              (completion-auto-help minibuffer boolean)
 209              (enable-recursive-minibuffers minibuffer boolean)
 210              (history-length minibuffer
 211                              (choice (const :tag "Infinite" t)
 212                                      integer))
 213              (history-delete-duplicates minibuffer boolean)
 214              (minibuffer-prompt-properties
 215               minibuffer
 216               (list
 217                (checklist :inline t
 218                           (const :tag "Read-Only"
 219                                  :doc "Prevent prompt from being modified"
 220                                  :format "%t%n%h"
 221                                  :inline t
 222                                  (read-only t))
 223                           (const :tag "Don't Enter"
 224                                  :doc "Prevent point from ever entering prompt"
 225                                  :format "%t%n%h"
 226                                  :inline t
 227                                  (point-entered minibuffer-avoid-prompt)))
 228                (repeat :inline t
 229                        :tag "Other Properties"
 230                        (list :inline t
 231                              :format "%v"
 232                              (symbol :tag "Property")
 233                              (sexp :tag "Value"))))
 234               "21.1")
 235              (minibuffer-auto-raise minibuffer boolean)
 236              ;; options property set at end
 237              (read-buffer-function minibuffer
 238                                    (choice (const nil)
 239                                            (function-item iswitchb-read-buffer)
 240                                            function))
 241              ;; msdos.c
 242              (dos-unsupported-char-glyph display integer)
 243              ;; process.c
 244              (delete-exited-processes processes-basics boolean)
 245              ;; syntax.c
 246              (parse-sexp-ignore-comments editing-basics boolean)
 247              (words-include-escapes editing-basics boolean)
 248              (open-paren-in-column-0-is-defun-start editing-basics boolean
 249                                                     "21.1")
 250              ;; undo.c
 251              (undo-limit undo integer)
 252              (undo-strong-limit undo integer)
 253              (undo-outer-limit undo
 254                                (choice integer
 255                                        (const :tag "No limit"
 256                                               :format "%t\n%d"
 257                                               :doc
 258                                               "With this choice, \
 259 the undo info for the current command never gets discarded.
 260 This should only be chosen under exceptional circumstances,
 261 since it could result in memory overflow and make Emacs crash."
 262                                               nil))
 263                                "22.1")
 264              ;; window.c
 265              (temp-buffer-show-function windows (choice (const nil) function))
 266              (display-buffer-function windows (choice (const nil) function))
 267              (pop-up-frames frames boolean)
 268              (pop-up-frame-function frames function)
 269              (special-display-buffer-names
 270               frames
 271               (repeat (choice :tag "Buffer"
 272                               :value ""
 273                               (string :format "%v")
 274                               (cons :tag "With attributes"
 275                                     :format "%v"
 276                                     :value ("" . nil)
 277                                     (string :format "%v")
 278                                     (repeat :tag "Attributes"
 279                                             (cons :format "%v"
 280                                                   (symbol :tag "Parameter")
 281                                                   (sexp :tag "Value")))))))
 282              (special-display-regexps
 283               frames
 284               (repeat (choice :tag "Buffer"
 285                               :value ""
 286                               (regexp :format "%v")
 287                               (cons :tag "With attributes"
 288                                     :format "%v"
 289                                     :value ("" . nil)
 290                                     (regexp :format "%v")
 291                                     (repeat :tag "Attributes"
 292                                             (cons :format "%v"
 293                                                   (symbol :tag "Parameter")
 294                                                   (sexp :tag "Value")))))))
 295              (special-display-function frames function)
 296              (same-window-buffer-names windows (repeat (string :format "%v")))
 297              (same-window-regexps windows (repeat (regexp :format "%v")))
 298              (pop-up-windows windows boolean)
 299              (even-window-heights windows boolean)
 300              (next-screen-context-lines windows integer)
 301              (split-height-threshold windows integer)
 302              (window-min-height windows integer)
 303              (window-min-width windows integer)
 304              (scroll-preserve-screen-position windows boolean)
 305              (display-buffer-reuse-frames windows boolean "21.1")
 306              ;; xdisp.c
 307              (scroll-step windows integer)
 308              (scroll-conservatively windows integer)
 309              (scroll-margin windows integer)
 310              (hscroll-margin windows integer "21.3")
 311              (hscroll-step windows number "21.3")
 312              (truncate-partial-width-windows display boolean)
 313              (mode-line-inverse-video modeline boolean)
 314              (mode-line-in-non-selected-windows modeline boolean "21.3")
 315              (line-number-display-limit display
 316                                         (choice integer
 317                                                 (const :tag "No limit" nil)))
 318              (line-number-display-limit-width display integer)
 319              (highlight-nonselected-windows display boolean)
 320              (message-log-max debug (choice (const :tag "Disable" nil)
 321                                             (integer :menu-tag "lines"
 322                                                      :format "%v")
 323                                             (other :tag "Unlimited" t)))
 324              (unibyte-display-via-language-environment mule boolean)
 325              (blink-cursor-alist cursor alist "22.1")
 326              ;; xfaces.c
 327              (scalable-fonts-allowed display boolean)
 328              ;; xfns.c
 329              (x-bitmap-file-path installation
 330                                  (repeat (directory :format "%v")))
 331              (x-use-old-gtk-file-dialog menu boolean "22.1")
 332              ;; xterm.c
 333              (mouse-autoselect-window display boolean "21.3")
 334              (x-use-underline-position-properties display boolean "21.3")
 335              (x-stretch-cursor display boolean "21.1")))
 336       this symbol group type standard version native-p
 337       ;; This function turns a value
 338       ;; into an expression which produces that value.
 339       (quoter (lambda (sexp)
 340                 (if (or (memq sexp '(t nil))
 341                         (keywordp sexp)
 342                         (and (listp sexp)
 343                              (memq (car sexp) '(lambda)))
 344                         (stringp sexp)
 345                         (numberp sexp))
 346                     sexp
 347                   (list 'quote sexp)))))
 348   (while all
 349     (setq this (car all)
 350           all (cdr all)
 351           symbol (nth 0 this)
 352           group (nth 1 this)
 353           type (nth 2 this)
 354           version (nth 3 this)
 355           ;; If we did not specify any standard value expression above,
 356           ;; use the current value as the standard value.
 357           standard (if (nthcdr 4 this)
 358                        (nth 4 this)
 359                      (when (default-boundp symbol)
 360                        (funcall quoter (default-value symbol))))
 361           ;; Don't complain about missing variables which are
 362           ;; irrelevant to this platform.
 363           native-p (save-match-data
 364                      (cond
 365                       ((string-match "\\`dos-" (symbol-name symbol))
 366                        (eq system-type 'ms-dos))
 367                       ((string-match "\\`w32-" (symbol-name symbol))
 368                        (eq system-type 'windows-nt))
 369                       ((string-match "\\`x-.*gtk" (symbol-name symbol))
 370                        (or (boundp 'gtk)
 371                            (and window-system
 372                                 (not (eq window-system 'pc))
 373                                 (not (eq system-type 'windows-nt)))))
 374                       ((string-match "\\`x-" (symbol-name symbol))
 375                        (fboundp 'x-create-frame))
 376                       ((string-match "selection" (symbol-name symbol))
 377                        (fboundp 'x-selection-exists-p))
 378                       ((string-match "fringe" (symbol-name symbol))
 379                        (fboundp 'define-fringe-bitmap))
 380                       (t t))))
 381     (if (not (boundp symbol))
 382         ;; If variables are removed from C code, give an error here!
 383         (and native-p
 384              (message "Note, built-in variable `%S' not bound" symbol))
 385       ;; Save the standard value, unless we already did.
 386       (or (get symbol 'standard-value)
 387           (put symbol 'standard-value (list standard)))
 388       ;; If this is NOT while dumping Emacs,
 389       ;; set up the rest of the customization info.
 390       (unless purify-flag
 391         ;; Add it to the right group.
 392         (custom-add-to-group group symbol 'custom-variable)
 393         ;; Set the type.
 394         (put symbol 'custom-type type)
 395         (put symbol 'custom-version version)))))
 396
 397 (custom-add-to-group 'iswitchb 'read-buffer-function 'custom-variable)
 398 (custom-add-to-group 'font-lock 'open-paren-in-column-0-is-defun-start
 399                      'custom-variable)
 400 (put 'selection-coding-system 'custom-set
 401      (lambda (symbol value)
 402        (set-selection-coding-system value)
 403        (set symbol value)))
 404
 405 ;; Record cus-start as loaded
 406 ;; if we have set up all the info that we can set up.
 407 ;; Don't record cus-start as loaded
 408 ;; if we have set up only the standard values.
 409 (unless purify-flag
 410   (provide 'cus-start))
 411
 412 ;;; arch-tag: 4502730d-bcb3-4f5e-99a3-a86f2d54af60
 413 ;;; cus-start.el ends here