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, 2006, 2007, 2008 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 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 (let ((all '(;; alloc.c
  37              (gc-cons-threshold alloc integer)
  38              (garbage-collection-messages alloc boolean)
  39              ;; buffer.c
  40              (mode-line-format mode-line sexp) ;Hard to do right.
  41              (default-major-mode internal function)
  42              (enable-multibyte-characters mule boolean)
  43              (case-fold-search matching boolean)
  44              (fill-column fill integer)
  45              (left-margin fill integer)
  46              (tab-width editing-basics integer)
  47              (ctl-arrow display boolean)
  48              (truncate-lines display boolean)
  49              (word-wrap display boolean)
  50              (selective-display-ellipses display boolean)
  51              (indicate-empty-lines fringe boolean)
  52              (indicate-buffer-boundaries
  53               fringe
  54               (choice
  55                (const :tag "No indicators" nil)
  56                (const :tag "On left, with arrows" left)
  57                (const :tag "On right, with arrows" right)
  58                (set :tag "Pick your own design"
  59                     :value ((t . nil))
  60                     :format "%{%t%}:\n%v\n%d"
  61                     :doc "You can specify a default and then override it \
  62 for individual indicators.
  63 Leaving \"Default\" unchecked is equivalent with specifying a default of
  64 \"Do not show\"."
  65                     (choice :tag "Default"
  66                             :value (t . nil)
  67                             (const :tag "Do not show" (t . nil))
  68                             (const :tag "On the left" (t . left))
  69                             (const :tag "On the right" (t . right)))
  70                     (choice :tag "Top"
  71                             :value (top . left)
  72                             (const :tag "Do not show" (top . nil))
  73                             (const :tag "On the left" (top . left))
  74                             (const :tag "On the right" (top . right)))
  75                     (choice :tag "Bottom"
  76                             :value (bottom . left)
  77                             (const :tag "Do not show" (bottom . nil))
  78                             (const :tag "On the left" (bottom . left))
  79                             (const :tag "On the right" (bottom . right)))
  80                     (choice :tag "Up arrow"
  81                             :value (up . left)
  82                             (const :tag "Do not show" (up . nil))
  83                             (const :tag "On the left" (up . left))
  84                             (const :tag "On the right" (up . right)))
  85                     (choice :tag "Down arrow"
  86                             :value (down . left)
  87                             (const :tag "Do not show" (down . nil))
  88                             (const :tag "On the left" (down . left))
  89                             (const :tag "On the right" (down . right))))
  90                (other :tag "On left, no arrows" t)))
  91              (scroll-up-aggressively windows
  92                                      (choice (const :tag "off" nil) number)
  93                                      "21.1")
  94              (scroll-down-aggressively windows
  95                                        (choice (const :tag "off" nil) number)
  96                                        "21.1")
  97              (line-spacing display (choice (const :tag "none" nil) integer)
  98                            "22.1")
  99              ;; callint.c
 100              (mark-even-if-inactive editing-basics boolean)
 101              (shift-select-mode editing-basics boolean)
 102              ;; callproc.c
 103              (shell-file-name execute file)
 104              (exec-path execute
 105                         (repeat (choice (const :tag "default directory" nil)
 106                                         (directory :format "%v"))))
 107              ;; charset.c
 108              (charset-map-path installation
 109                                (repeat (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
 127                              :tag "Single coding system"
 128                              :value undecided
 129                              :match (lambda (widget value)
 130                                       (and value (not (functionp value)))))
 131                             (function :value ignore))))
 132              ;; dired.c
 133              (completion-ignored-extensions dired
 134                                             (repeat (string :format "%v")))
 135              ;; dispnew.c
 136              (baud-rate display integer)
 137              (inverse-video display boolean)
 138              (visible-bell display boolean)
 139              (no-redraw-on-reenter display boolean)
 140              ;; editfns.c
 141              (user-full-name mail string)
 142              ;; eval.c
 143              (max-specpdl-size limits integer)
 144              (max-lisp-eval-depth limits integer)
 145              (max-mini-window-height limits
 146                                      (choice (const :tag "quarter screen" nil)
 147                                              number) "23.1")
 148              (stack-trace-on-error debug
 149                                    (choice (const :tag "off")
 150                                            (repeat :menu-tag "When"
 151                                                    :value (nil)
 152                                                    (symbol :format "%v"))
 153                                            (const :tag "always" t)))
 154              (debug-on-error debug
 155                              (choice (const :tag "off")
 156                                      (repeat :menu-tag "When"
 157                                              :value (nil)
 158                                              (symbol :format "%v"))
 159                                      (const :tag "always" t)))
 160              (debug-ignored-errors debug (repeat (choice symbol regexp)))
 161              (debug-on-quit debug
 162                             (choice (const :tag "off")
 163                                     (repeat :menu-tag "When"
 164                                             :value (nil)
 165                                             (symbol :format "%v"))
 166                                     (const :tag "always" t)))
 167              ;; fileio.c
 168              (delete-by-moving-to-trash auto-save boolean "23.1")
 169              (auto-save-visited-file-name auto-save boolean)
 170              ;; fns.c
 171              (use-dialog-box menu boolean "21.1")
 172              (use-file-dialog menu boolean "22.1")
 173              (focus-follows-mouse frames boolean "20.3")
 174              ;; frame.c
 175              (default-frame-alist frames
 176                (repeat (cons :format "%v"
 177                              (symbol :tag "Parameter")
 178                              (sexp :tag "Value"))))
 179              (mouse-highlight mouse (choice (const :tag "disabled" nil)
 180                                             (const :tag "always shown" t)
 181                                             (other :tag "hidden by keypress" 1))
 182                               "22.1")
 183              ;; fringe.c
 184              (overflow-newline-into-fringe fringe boolean)
 185              ;; indent.c
 186              (indent-tabs-mode indent boolean)
 187              ;; keyboard.c
 188              (meta-prefix-char keyboard character)
 189              (auto-save-interval auto-save integer)
 190              (auto-save-timeout auto-save (choice (const :tag "off" nil)
 191                                                   (integer :format "%v")))
 192              (echo-keystrokes minibuffer number)
 193              (polling-period keyboard integer)
 194              (double-click-time mouse (restricted-sexp
 195                                        :match-alternatives (integerp 'nil 't)))
 196              (double-click-fuzz mouse integer "22.1")
 197              (inhibit-local-menu-bar-menus menu boolean)
 198              (help-char keyboard character)
 199              (help-event-list keyboard (repeat (sexp :format "%v")))
 200              (menu-prompting menu boolean)
 201              (suggest-key-bindings keyboard (choice (const :tag "off" nil)
 202                                                     (integer :tag "time" 2)
 203                                                     (other :tag "on")))
 204
 205 ;; This is not good news because it will use the wrong
 206 ;; version-specific directories when you upgrade.  We need
 207 ;; customization of the front of the list, maintaining the standard
 208 ;; value intact at the back.
 209 ;;;          (load-path environment
 210 ;;;                     (repeat (choice :tag "[Current dir?]"
 211 ;;;                                     :format "%[Current dir?%] %v"
 212 ;;;                                     (const :tag " current dir" nil)
 213 ;;;                                     (directory :format "%v"))))
 214              ;; minibuf.c
 215              (enable-recursive-minibuffers minibuffer boolean)
 216              (history-length minibuffer
 217                              (choice (const :tag "Infinite" t) integer)
 218                              "22.1")
 219              (history-delete-duplicates minibuffer boolean "22.1")
 220              (read-buffer-completion-ignore-case minibuffer boolean "23.1")
 221
 222              (minibuffer-prompt-properties
 223               minibuffer
 224               (list
 225                (checklist :inline t
 226                           (const :tag "Read-Only"
 227                                  :doc "Prevent prompt from being modified"
 228                                  :format "%t%n%h"
 229                                  :inline t
 230                                  (read-only t))
 231                           (const :tag "Don't Enter"
 232                                  :doc "Prevent point from ever entering prompt"
 233                                  :format "%t%n%h"
 234                                  :inline t
 235                                  (point-entered minibuffer-avoid-prompt)))
 236                (repeat :inline t
 237                        :tag "Other Properties"
 238                        (list :inline t
 239                              :format "%v"
 240                              (symbol :tag "Property")
 241                              (sexp :tag "Value"))))
 242               "21.1")
 243              (minibuffer-auto-raise minibuffer boolean)
 244              ;; options property set at end
 245              (read-buffer-function minibuffer
 246                                    (choice (const nil)
 247                                            (function-item iswitchb-read-buffer)
 248                                            function))
 249              ;; msdos.c
 250              (dos-unsupported-char-glyph display integer)
 251              ;; process.c
 252              (delete-exited-processes processes-basics boolean)
 253              ;; syntax.c
 254              (parse-sexp-ignore-comments editing-basics boolean)
 255              (words-include-escapes editing-basics boolean)
 256              (open-paren-in-column-0-is-defun-start editing-basics boolean
 257                                                     "21.1")
 258              ;; term.c
 259              (visible-cursor cursor boolean "22.1")
 260              ;; undo.c
 261              (undo-limit undo integer)
 262              (undo-strong-limit undo integer)
 263              (undo-outer-limit undo
 264                                (choice integer
 265                                        (const :tag "No limit"
 266                                               :format "%t\n%d"
 267                                               :doc
 268                                               "With this choice, \
 269 the undo info for the current command never gets discarded.
 270 This should only be chosen under exceptional circumstances,
 271 since it could result in memory overflow and make Emacs crash."
 272                                               nil))
 273                                "22.1")
 274              ;; window.c
 275              (temp-buffer-show-function windows (choice (const nil) function))
 276              (next-screen-context-lines windows integer)
 277              (window-min-height windows integer)
 278              (window-min-width windows integer)
 279              (scroll-preserve-screen-position
 280               windows (choice
 281                        (const :tag "Off (nil)" :value nil)
 282                        (const :tag "Full screen (t)" :value t)
 283                        (other :tag "Always" 1)) "22.1")
 284              ;; xdisp.c
 285              (scroll-step windows integer)
 286              (scroll-conservatively windows integer)
 287              (scroll-margin windows integer)
 288              (hscroll-margin windows integer "22.1")
 289              (hscroll-step windows number "22.1")
 290              (truncate-partial-width-windows display boolean "23.1")
 291              (mode-line-inverse-video mode-line boolean)
 292              (mode-line-in-non-selected-windows mode-line boolean "22.1")
 293              (line-number-display-limit display
 294                                         (choice integer
 295                                                 (const :tag "No limit" nil)))
 296              (line-number-display-limit-width display integer "22.1")
 297              (highlight-nonselected-windows display boolean)
 298              (message-log-max debug (choice (const :tag "Disable" nil)
 299                                             (integer :menu-tag "lines"
 300                                                      :format "%v")
 301                                             (other :tag "Unlimited" t)))
 302              (unibyte-display-via-language-environment mule boolean)
 303              (blink-cursor-alist cursor alist "22.1")
 304              (overline-margin display integer "22.1")
 305              (underline-minimum-offset display integer "23.1")
 306              (mouse-autoselect-window
 307               display (choice
 308                        (const :tag "Off (nil)" :value nil)
 309                        (const :tag "Immediate" :value t)
 310                        (number :tag "Delay by secs" :value 0.5)) "22.1")
 311              ;; xfaces.c
 312              (scalable-fonts-allowed display boolean "22.1")
 313              ;; xfns.c
 314              (x-bitmap-file-path installation
 315                                  (repeat (directory :format "%v")))
 316              (x-gtk-use-old-file-dialog menu boolean "22.1")
 317              (x-gtk-show-hidden-files menu boolean "22.1")
 318              (x-gtk-file-dialog-help-text menu boolean "22.1")
 319              (x-gtk-whole-detached-tool-bar x boolean "22.1")
 320              ;; xterm.c
 321              (x-use-underline-position-properties display boolean "22.1")
 322              (x-underline-at-descent-line display boolean "22.1")
 323              (x-stretch-cursor display boolean "21.1")))
 324       this symbol group type standard version native-p
 325       ;; This function turns a value
 326       ;; into an expression which produces that value.
 327       (quoter (lambda (sexp)
 328                 (if (or (memq sexp '(t nil))
 329                         (keywordp sexp)
 330                         (and (listp sexp)
 331                              (memq (car sexp) '(lambda)))
 332                         (stringp sexp)
 333                         (numberp sexp))
 334                     sexp
 335                   (list 'quote sexp)))))
 336   (while all
 337     (setq this (car all)
 338           all (cdr all)
 339           symbol (nth 0 this)
 340           group (nth 1 this)
 341           type (nth 2 this)
 342           version (nth 3 this)
 343           ;; If we did not specify any standard value expression above,
 344           ;; use the current value as the standard value.
 345           standard (if (nthcdr 4 this)
 346                        (nth 4 this)
 347                      (when (default-boundp symbol)
 348                        (funcall quoter (default-value symbol))))
 349           ;; Don't complain about missing variables which are
 350           ;; irrelevant to this platform.
 351           native-p (save-match-data
 352                      (cond
 353                       ((string-match "\\`dos-" (symbol-name symbol))
 354                        (eq system-type 'ms-dos))
 355                       ((string-match "\\`w32-" (symbol-name symbol))
 356                        (eq system-type 'windows-nt))
 357                       ((string-match "\\`x-.*gtk" (symbol-name symbol))
 358                        (featurep 'gtk))
 359                       ((string-match "\\`x-" (symbol-name symbol))
 360                        (fboundp 'x-create-frame))
 361                       ((string-match "selection" (symbol-name symbol))
 362                        (fboundp 'x-selection-exists-p))
 363                       ((string-match "fringe" (symbol-name symbol))
 364                        (fboundp 'define-fringe-bitmap))
 365                       (t t))))
 366     (if (not (boundp symbol))
 367         ;; If variables are removed from C code, give an error here!
 368         (and native-p
 369              (message "Note, built-in variable `%S' not bound" symbol))
 370       ;; Save the standard value, unless we already did.
 371       (or (get symbol 'standard-value)
 372           (put symbol 'standard-value (list standard)))
 373       ;; If this is NOT while dumping Emacs,
 374       ;; set up the rest of the customization info.
 375       (unless purify-flag
 376         ;; Add it to the right group.
 377         (custom-add-to-group group symbol 'custom-variable)
 378         ;; Set the type.
 379         (put symbol 'custom-type type)
 380         (put symbol 'custom-version version)))))
 381
 382 (custom-add-to-group 'iswitchb 'read-buffer-function 'custom-variable)
 383 (custom-add-to-group 'font-lock 'open-paren-in-column-0-is-defun-start
 384                      'custom-variable)
 385
 386 ;; Record cus-start as loaded
 387 ;; if we have set up all the info that we can set up.
 388 ;; Don't record cus-start as loaded
 389 ;; if we have set up only the standard values.
 390 (unless purify-flag
 391   (provide 'cus-start))
 392
 393 ;; arch-tag: 4502730d-bcb3-4f5e-99a3-a86f2d54af60
 394 ;;; cus-start.el ends here