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cus-start.el
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;;; cus-start.el --- define customization properties of builtins -*- lexical-binding:t -*-
;; Copyright (C) 1997, 1999-2025 Free Software Foundation, Inc.
;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
;; Keywords: internal
;; Package: emacs
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; This file adds customize support for built-in variables.
;; While dumping Emacs, this file is loaded, but it only records
;; the standard values; it does not do the rest of the job.
;; Later on, if the user makes a customization buffer,
;; this file is loaded again with (require 'cus-start);
;; then it does the whole job.
;;; Code:
(defun minibuffer-prompt-properties--setter (symbol value)
(set-default symbol value)
(if (memq 'cursor-intangible value)
(add-hook 'minibuffer-setup-hook #'cursor-intangible-mode)
;; Removing it is a bit trickier since it could have been added by someone
;; else as well, so let's just not bother.
))
;; Elements of this list have the form:
;; SYMBOL GROUP TYPE VERSION REST...
;; SYMBOL is the name of the variable.
;; GROUP is the custom group to which it belongs (may also be a list
;; of groups)
;; TYPE is the defcustom :type.
;; VERSION is the defcustom :version (or nil).
;; REST is a set of :KEYWORD VALUE pairs. Accepted :KEYWORDs are:
;; :standard - standard value for SYMBOL (else use current value)
;; :set - custom-set property
;; :risky - risky-local-variable property
;; :safe - safe-local-variable property
;; :tag - custom-tag property
(let (standard
native-p prop propval
;; This function turns a value
;; into an expression which produces that value.
(quoter (lambda (sexp)
;; FIXME: We'd like to use macroexp-quote here, but cus-start
;; is loaded too early in loadup.el for that.
(if (or (memq sexp '(t nil))
(keywordp sexp)
(and (listp sexp)
(memq (car sexp) '(lambda)))
(stringp sexp)
(numberp sexp))
sexp
(list 'quote sexp))))
(cursor-type-types
'(choice
(const :tag "Frame default" t)
(const :tag "Filled box" box)
(cons :tag "Box with specified size"
(const box) integer)
(const :tag "Hollow cursor" hollow)
(const :tag "Vertical bar" bar)
(cons :tag "Vertical bar with specified height"
(const bar) integer)
(const :tag "Horizontal bar" hbar)
(cons :tag "Horizontal bar with specified width"
(const hbar) integer)
(const :tag "None "nil))))
(pcase-dolist
(`(,symbol ,group ,type ,version . ,rest)
`(;; alloc.c
(gc-cons-threshold alloc integer)
(gc-cons-percentage alloc float)
(garbage-collection-messages alloc boolean)
;; buffer.c
(cursor-type display ,cursor-type-types)
(mode-line-format mode-line sexp) ;Hard to do right.
(major-mode internal function)
(case-fold-search matching boolean)
(fill-column fill integer)
(left-margin fill integer)
(tab-width editing-basics integer)
(ctl-arrow display boolean)
(truncate-lines display boolean)
(word-wrap display boolean)
(word-wrap-by-category
display boolean "28.1"
:set ,(lambda (symbol value)
(set-default symbol value)
(when value (require 'kinsoku))))
(selective-display-ellipses display boolean)
(indicate-empty-lines fringe boolean)
(indicate-buffer-boundaries
fringe
(choice
(const :tag "No indicators" nil)
(const :tag "On left, with arrows" left)
(const :tag "On right, with arrows" right)
(set :tag "Pick your own design"
:value ((t . nil))
:format "%{%t%}:\n%v\n%d"
:doc "You can specify a default and then override it \
for individual indicators.
Leaving \"Default\" unchecked is equivalent with specifying a default of
\"Do not show\"."
(choice :tag "Default"
:value (t . nil)
(const :tag "Do not show" (t . nil))
(const :tag "On the left" (t . left))
(const :tag "On the right" (t . right)))
(choice :tag "Top"
:value (top . left)
(const :tag "Do not show" (top . nil))
(const :tag "On the left" (top . left))
(const :tag "On the right" (top . right)))
(choice :tag "Bottom"
:value (bottom . left)
(const :tag "Do not show" (bottom . nil))
(const :tag "On the left" (bottom . left))
(const :tag "On the right" (bottom . right)))
(choice :tag "Up arrow"
:value (up . left)
(const :tag "Do not show" (up . nil))
(const :tag "On the left" (up . left))
(const :tag "On the right" (up . right)))
(choice :tag "Down arrow"
:value (down . left)
(const :tag "Do not show" (down . nil))
(const :tag "On the left" (down . left))
(const :tag "On the right" (down . right))))
(other :tag "On left, no arrows" t)))
(scroll-up-aggressively windows
(choice (const :tag "off" nil) float)
"21.1")
(scroll-down-aggressively windows
(choice (const :tag "off" nil) float)
"21.1")
(line-spacing display (choice (const :tag "none" nil) number)
"22.1")
(cursor-in-non-selected-windows
cursor ,cursor-type-types nil
:tag "Cursor In Non-selected Windows"
:set ,(lambda (symbol value)
(set-default symbol value)
(force-mode-line-update t)))
(transient-mark-mode editing-basics boolean nil
:standard (not noninteractive)
:initialize custom-initialize-delay
:set custom-set-minor-mode)
(bidi-paragraph-direction
paragraphs
(choice
(const :tag "Left to Right" left-to-right)
(const :tag "Right to Left" right-to-left)
(const :tag "Dynamic, according to paragraph text" nil))
"24.1")
(delete-auto-save-files auto-save boolean)
(kill-buffer-delete-auto-save-files auto-save boolean "28.1")
;; callint.c
(mark-even-if-inactive editing-basics boolean)
;; callproc.c
(shell-file-name execute file)
(exec-path execute
(repeat (choice (const :tag "default directory" nil)
(directory :format "%v")))
nil
:standard
(mapcar (lambda (f)
(if f (directory-file-name f)
"."))
(append (parse-colon-path (getenv "PATH"))
(list exec-directory))))
(exec-suffixes execute (repeat string))
;; charset.c
(charset-map-path installation
(repeat (directory :format "%v")))
;; coding.c
(inhibit-eol-conversion mule boolean)
(enable-character-translation mule boolean)
(eol-mnemonic-undecided mule string)
;; startup.el fiddles with the values. IMO, would be
;; simpler to just use #ifdefs in coding.c.
(eol-mnemonic-unix mule string nil
:standard
(if (memq system-type '(ms-dos windows-nt))
"(Unix)" ":"))
(eol-mnemonic-dos mule string nil
:standard
(if (memq system-type '(ms-dos windows-nt))
"\\" "(DOS)"))
(eol-mnemonic-mac mule string nil
:standard "(Mac)")
(file-coding-system-alist
mule
(alist
:key-type (regexp :tag "File regexp")
:value-type (choice
:value (undecided . undecided)
(cons :tag "Encoding/decoding pair"
:value (undecided . undecided)
(coding-system :tag "Decoding")
(coding-system :tag "Encoding"))
(coding-system
:tag "Single coding system"
:value undecided
:match ,(lambda (_widget value)
(and value (not (functionp value)))))
(function :value ignore))))
;; dired.c
(completion-ignored-extensions dired
(repeat (string :format "%v")))
;; dispnew.c
(baud-rate display integer)
(inverse-video display boolean)
(visible-bell display boolean)
(no-redraw-on-reenter display boolean)
(mouse-prefer-closest-glyph display boolean)
;; doc.c
(text-quoting-style display
(choice
(const :tag "Prefer \\=‘curved\\=’ quotes, if possible" nil)
(const :tag "\\=‘Curved\\=’ quotes" curved)
(const :tag "\\='Straight\\=' quotes" straight)
(const :tag "\\=`Grave\\=' quotes (no translation)" grave)))
;; dosfns.c
(dos-display-scancodes display boolean)
(dos-hyper-key keyboard integer)
(dos-super-key keyboard integer)
(dos-keypad-mode keyboard integer)
;; editfns.c
(user-full-name mail string)
;; emacs.c
(report-emacs-bug-address emacsbug string)
;; eval.c
(max-lisp-eval-depth limits integer)
(max-mini-window-height limits
(choice (const :tag "quarter screen" nil)
number) "23.1")
(debug-on-error debug
(choice (const :tag "off")
(repeat :menu-tag "When"
:value (nil)
(symbol :format "%v"))
(const :tag "always" t)))
(debug-ignored-errors debug (repeat (choice symbol regexp)))
(debug-on-quit debug boolean)
(debug-on-signal debug boolean)
(debugger-stack-frame-as-list debugger boolean "26.1")
;; fileio.c
(delete-by-moving-to-trash auto-save boolean "23.1")
(auto-save-visited-file-name auto-save boolean)
;; filelock.c
(create-lockfiles files boolean "24.3")
(temporary-file-directory
;; Darwin section added 24.1, does not seem worth :version bump.
files directory nil
:standard
(file-name-as-directory
;; FIXME ? Should there be Ftemporary_file_directory to do this
;; more robustly (cf set_local_socket in emacsclient.c).
;; It could be used elsewhere, eg Fcall_process_region,
;; server-socket-dir. See bug#7135.
(cond ((memq system-type '(ms-dos windows-nt))
(or (getenv "TEMP") (getenv "TMPDIR") (getenv "TMP")
"c:/temp"))
((eq system-type 'darwin)
(or (getenv "TMPDIR") (getenv "TMP") (getenv "TEMP")
;; See bug#7135.
(let* (file-name-handler-alist
(default-directory "/")
(tmp (ignore-errors
(shell-command-to-string
"getconf DARWIN_USER_TEMP_DIR"))))
(and (stringp tmp)
(setq tmp (replace-regexp-in-string
"\n\\'" "" tmp))
;; Handles "getconf: Unrecognized variable..."
(file-directory-p tmp)
tmp))
"/tmp"))
(t
(or (getenv "TMPDIR") (getenv "TMP") (getenv "TEMP")
"/tmp"))))
:initialize custom-initialize-delay)
;; fns.c
(use-dialog-box menu boolean "21.1")
(use-file-dialog menu boolean "22.1")
(use-short-answers menu boolean "28.1")
(focus-follows-mouse
frames (choice
(const :tag "Off" :value nil)
(const :tag "On" :value t)
(const :tag "Auto-raise" :value auto-raise))
"26.1")
(yes-or-no-prompt menu string "30.1")
;; fontset.c
;; FIXME nil is the initial value, fontset.el setqs it.
(vertical-centering-font-regexp display
(choice (const nil) regexp))
;; frame.c
(default-frame-alist
frames
(repeat (cons :format "%v"
(symbol :tag "Parameter"
:completions ,frame--special-parameters)
(sexp :tag "Value"
:complete frame--complete-parameter-value))))
(mouse-highlight mouse (choice (const :tag "disabled" nil)
(const :tag "always shown" t)
(other :tag "hidden by keypress" 1))
"22.1")
(make-pointer-invisible mouse boolean "23.2")
(resize-mini-frames
frames (choice
(const :tag "Never" nil)
(const :tag "Fit mini frame to buffer" t)
(function :tag "User-defined function"))
"27.2")
(menu-bar-mode frames boolean nil
;; FIXME?
;; :initialize custom-initialize-default
:set custom-set-minor-mode)
(tab-bar-mode tab-bar boolean nil
;; :initialize custom-initialize-default
:set custom-set-minor-mode)
(tool-bar-mode (frames mouse) boolean nil
;; :initialize custom-initialize-default
:set custom-set-minor-mode)
(frame-resize-pixelwise frames boolean "24.4")
(frame-inhibit-implied-resize frames
(choice
(const :tag "Never" nil)
(const :tag "Always" t)
(const :tag "Force" force)
(repeat (symbol :tag "Parameter")))
"31.1")
(iconify-child-frame frames
(choice
(const :tag "Do nothing" nil)
(const :tag "Iconify top level frame instead" iconify-top-level)
(const :tag "Make frame invisible instead" make-invisible)
(const :tag "Iconify" t))
"26.1")
(tooltip-reuse-hidden-frame tooltip boolean "26.1")
(use-system-tooltips tooltip boolean "29.1")
;; fringe.c
(overflow-newline-into-fringe fringe boolean)
;; image.c
(image-scaling-factor image
(choice number
(const :tag "Automatically compute" auto))
"26.1")
(imagemagick-render-type image integer "24.1")
;; indent.c
(indent-tabs-mode indent boolean)
;; keyboard.c
(meta-prefix-char keyboard character)
(auto-save-interval auto-save integer)
(auto-save-no-message auto-save boolean "27.1")
(auto-save-timeout auto-save (choice (const :tag "off" nil)
(integer :format "%v")))
(echo-keystrokes minibuffer number)
(echo-keystrokes-help minibuffer boolean "30.1")
(polling-period keyboard float)
(double-click-time mouse (restricted-sexp
:match-alternatives (integerp 'nil 't)))
(double-click-fuzz mouse integer "22.1")
(help-char keyboard character)
(help-event-list keyboard (repeat (sexp :format "%v")))
(menu-prompting menu boolean)
(select-active-regions killing
(choice (const :tag "always" t)
(const :tag "only shift-selection or mouse-drag" only)
(const :tag "off" nil))
"24.1")
(debug-on-event debug
(choice (const :tag "None" nil)
(const :tag "When sent SIGUSR1" sigusr1)
(const :tag "When sent SIGUSR2" sigusr2))
"24.1")
(translate-upper-case-key-bindings keyboard boolean "29.1")
;; This is not good news because it will use the wrong
;; version-specific directories when you upgrade. We need
;; customization of the front of the list, maintaining the
;; standard value intact at the back.
;;(load-path environment
;; (repeat (choice :tag "[Current dir?]"
;; :format "%[Current dir?%] %v"
;; (const :tag " current dir" nil)
;; (directory :format "%v"))))
(load-prefer-newer lisp boolean "24.4")
(record-all-keys keyboard boolean)
;; minibuf.c
(minibuffer-follows-selected-frame
minibuffer (choice (const :tag "Always" t)
(const :tag "When used" hybrid)
(const :tag "Never" nil))
"28.1")
(enable-recursive-minibuffers minibuffer boolean)
(history-length minibuffer
(choice (const :tag "Infinite" t) integer)
"24.5") ; 30 -> 100
(history-delete-duplicates minibuffer boolean "22.1")
(read-buffer-completion-ignore-case minibuffer boolean "23.1")
(minibuffer-prompt-properties
minibuffer
(list
(checklist :inline t
(const :tag "Read-Only"
:doc "Prevent prompt from being modified"
:format "%t%n%h"
:inline t
(read-only t))
(const :tag "Don't Enter"
:doc "Prevent point from ever entering prompt"
:format "%t%n%h"
:inline t
(cursor-intangible t)))
(repeat :inline t
:tag "Other Properties"
(list :inline t
:format "%v"
(symbol :tag "Property")
(sexp :tag "Value"))))
"21.1"
:set minibuffer-prompt-properties--setter)
(minibuffer-auto-raise minibuffer boolean)
(read-minibuffer-restore-windows minibuffer boolean "28.1")
;; options property set at end
(read-buffer-function minibuffer
(choice (const nil)
function))
;; msdos.c
(dos-unsupported-char-glyph display integer)
;; nsterm.m
(ns-control-modifier
ns
(choice (const :tag "No modifier" none)
(const control) (const meta)
(const alt) (const hyper)
(const super)
(plist :key-type (choice (const :ordinary)
(const :function)
(const :mouse))
:value-type (choice (const control)
(const meta)
(const alt)
(const hyper)
(const super)
(const :tag "No modifier"
none))))
"23.1")
(ns-right-control-modifier
ns
(choice (const :tag "No modifier (work as control)" none)
(const :tag "Use the value of ns-control-modifier"
left)
(const control) (const meta)
(const alt) (const hyper)
(const super)
(plist :key-type (choice (const :ordinary)
(const :function)
(const :mouse))
:value-type (choice (const control)
(const meta)
(const alt)
(const hyper)
(const super)
(const :tag "No modifier"
none))))
"24.1")
(ns-command-modifier
ns
(choice (const :tag "No modifier (work as layout switch)" none)
(const control) (const meta)
(const alt) (const hyper)
(const super)
(plist :key-type (choice (const :ordinary)
(const :function)
(const :mouse))
:value-type (choice (const control)
(const meta)
(const alt)
(const hyper)
(const super)
(const :tag "No modifier"
none))))
"23.1")
(ns-right-command-modifier
ns
(choice (const :tag "No modifier (work as layout switch)" none)
(const :tag "Use the value of ns-command-modifier"
left)
(const control) (const meta)
(const alt) (const hyper)
(const super)
(plist :key-type (choice (const :ordinary)
(const :function)
(const :mouse))
:value-type (choice (const control)
(const meta)
(const alt)
(const hyper)
(const super)
(const :tag "No modifier"
none))))
"24.1")
(ns-alternate-modifier
ns
(choice (const :tag "No modifier (work as alternate/option)" none)
(const control) (const meta)
(const alt) (const hyper)
(const super)
(plist :key-type (choice (const :ordinary)
(const :function)
(const :mouse))
:value-type (choice (const control)
(const meta)
(const alt)
(const hyper)
(const super)
(const :tag "No modifier"
none))))
"23.1")
(ns-right-alternate-modifier
ns
(choice (const :tag "No modifier (work as alternate/option)" none)
(const :tag "Use the value of ns-alternate-modifier"
left)
(const control) (const meta)
(const alt) (const hyper)
(const super)
(plist :key-type (choice (const :ordinary)
(const :function)
(const :mouse))
:value-type (choice (const control)
(const meta)
(const alt)
(const hyper)
(const super)
(const :tag "No modifier"
none))))
"23.3")
(ns-function-modifier
ns
(choice (const :tag "No modifier (work as function)" none)
(const control) (const meta)
(const alt) (const hyper)
(const super)
(plist :key-type (choice (const :ordinary)
(const :function)
(const :mouse))
:value-type (choice (const control)
(const meta)
(const alt)
(const hyper)
(const super)
(const :tag "No modifier"
none))))
"23.1")
(ns-antialias-text ns boolean "23.1")
(ns-auto-hide-menu-bar ns boolean "24.1")
(ns-confirm-quit ns boolean "25.1")
(ns-use-native-fullscreen ns boolean "24.4")
(ns-use-fullscreen-animation ns boolean "25.1")
(ns-use-srgb-colorspace ns boolean "24.4")
(ns-scroll-event-delta-factor ns float "29.1")
(ns-click-through
ns (choice (const :tag "Never (nil)" :value nil)
(const :tag "Always (t)" :value t))
"31.1")
;; process.c
(delete-exited-processes processes-basics boolean)
(process-error-pause-time processes-basics integer "29.1")
;; syntax.c
(parse-sexp-ignore-comments editing-basics boolean)
(words-include-escapes editing-basics boolean)
(open-paren-in-column-0-is-defun-start editing-basics boolean
"21.1")
;; term.c
(visible-cursor cursor boolean "22.1")
;; terminal.c
(ring-bell-function display
(choice
(const :tag "Default" nil)
(const :tag "Silent" ignore)
function))
;; undo.c
(undo-limit undo integer "27.1")
(undo-strong-limit undo integer "27.1")
(undo-outer-limit undo
(choice integer
(const :tag "No limit"
:format "%t\n%d"
:doc
"With this choice, \
the undo info for the current command never gets discarded.
This should only be chosen under exceptional circumstances,
since it could result in memory overflow and make Emacs crash."
nil))
"27.1")
;; w32fns.c
(w32-follow-system-dark-mode display boolean "30.1")
;; window.c
(temp-buffer-show-function windows (choice (const nil) function))
(next-screen-context-lines windows integer)
(scroll-preserve-screen-position
windows (choice
(const :tag "Off" :value nil)
(const :tag "Full screen" :value t)
(other :tag "Always" 1))
"22.1")
(recenter-redisplay
windows (choice
(const :tag "Never" :value nil)
(const :tag "Only on ttys" :value tty)
(other :tag "Always" t))
"23.1")
(window-combination-resize windows boolean "24.1")
(window-combination-limit
windows (choice
(const :tag "Never" :value nil)
(const :tag "If requested via buffer display alist"
:value window-size)
(const :tag "With Temp Buffer Resize mode"
:value temp-buffer-resize)
(const :tag "For temporary buffers"
:value temp-buffer)
(const :tag "For buffer display"
:value display-buffer)
(other :tag "Always" :value t))
"26.1")
(fast-but-imprecise-scrolling scrolling boolean "25.1")
(window-resize-pixelwise windows boolean "24.4")
;; xdisp.c
;; The whitespace group is for whitespace.el.
(show-trailing-whitespace editing-basics boolean nil
:safe booleanp)
(mode-line-compact
mode-line
(choice (const :tag "Never" :value nil)
(const :tag "Only if wider than window" :value long)
(const :tag "Always" :value t))
"28.1")
(scroll-step windows integer)
(scroll-conservatively windows integer)
(scroll-margin windows integer)
(maximum-scroll-margin windows float "26.1")
(hscroll-margin windows integer "22.1")
(hscroll-step windows
(choice (const :tag "Center horizontally" nil)
number) "22.1")
(truncate-partial-width-windows
display
(choice (integer :tag "Truncate if narrower than")
(const :tag "Respect `truncate-lines'" nil)
(other :tag "Truncate if not full-width" t))
"23.1")
(make-cursor-line-fully-visible
windows
(choice
(const :tag "Make cursor always fully visible" t)
(const :tag "Allow cursor to be partially-visible" nil)
(function :tag "User-defined function")))
(mode-line-in-non-selected-windows mode-line boolean "22.1")
(line-number-display-limit display
(choice integer
(const :tag "No limit" nil)))
(line-number-display-limit-width display integer "22.1")
(highlight-nonselected-windows display boolean)
(message-log-max debug (choice (const :tag "Disable" nil)
(integer :menu-tag "lines"
:format "%v")
(other :tag "Unlimited" t))
"24.3")
(unibyte-display-via-language-environment mule boolean)
(blink-cursor-alist cursor alist "22.1")
(overline-margin display integer "22.1")
(underline-minimum-offset display integer "23.1")
(mouse-autoselect-window
display (choice
(const :tag "Off" :value nil)
(const :tag "Immediate" :value t)
(number :tag "Delay by secs" :value 0.5))
"22.1")
(tool-bar-style
frames (choice
(const :tag "Images" :value image)
(const :tag "Text" :value text)
(const :tag "Both, text below image" :value both)
(const :tag "Both, text to right of image" :value both-horiz)
(const :tag "Both, text to left of image" :value text-image-horiz)
(const :tag "System default" :value nil))
"24.1")
(tool-bar-max-label-size frames integer "24.1")
(tab-bar-position
tab-bar (choice
(const :tag "Tab bar above tool bar" nil)
(const :tag "Tab bar below tool bar" t))
"27.1"
:set ,(lambda (sym val)
(set-default sym val)
;; Redraw the bars:
(tab-bar-mode -1)
(tab-bar-mode 1)))
(auto-hscroll-mode scrolling
(choice
(const :tag "Don't scroll automatically"
:value nil)
(const :tag "Scroll the entire window"
:value t)
(const :tag "Scroll only the current line"
:value current-line))
"26.1")
(void-text-area-pointer cursor
(choice
(const :tag "Standard (text pointer)" :value nil)
(const :tag "Arrow" :value arrow)
(const :tag "Text pointer" :value text)
(const :tag "Hand" :value hand)
(const :tag "Vertical dragger" :value vdrag)
(const :tag "Horizontal dragger" :value hdrag)
(const :tag "Same as mode line" :value modeline)
(const :tag "Hourglass" :value hourglass)))
(display-hourglass cursor boolean)
(hourglass-delay cursor number)
(resize-mini-windows
windows (choice
(const :tag "Off" :value nil)
(const :tag "Fit" :value t)
(const :tag "Grow only" :value grow-only))
"25.1")
(display-raw-bytes-as-hex display boolean "26.1")
(display-line-numbers
display-line-numbers
(choice
(const :tag "Off" :value nil)
(const :tag "Absolute line numbers"
:value t)
(const :tag "Relative line numbers"
:value relative)
(const :tag "Visually relative line numbers"
:value visual))
"26.1")
(display-line-numbers-width
display-line-numbers
(choice
(const :tag "Dynamically computed"
:value nil)
(integer :menu-tag "Fixed number of columns"
:value 2
:format "%v"))
"26.1")
(display-line-numbers-current-absolute
display-line-numbers
(choice
(const :tag "Display actual number of current line"
:value t)
(const :tag "Display zero as number of current line"
:value nil))
"26.1")
(display-line-numbers-widen
display-line-numbers
(choice
(const :tag "Disregard narrowing when calculating line numbers"
:value t)
(const :tag "Count lines from beginning of narrowed region"
:value nil))
"26.1")
(display-line-numbers-major-tick
display-line-numbers
(choice
(const :tag "No line" 0)
(integer :tag "Multiples of"
:value 10))
"27.1")
(display-line-numbers-minor-tick
display-line-numbers
(choice
(const :tag "No line" 0)
(integer :tag "Multiples of"
:value 5))
"27.1")
(display-fill-column-indicator
display-fill-column-indicator
boolean
"27.1"
:safe booleanp)
(display-fill-column-indicator-column
display-fill-column-indicator
(choice
(const :tag "Use fill-column variable"
:value t)
(const :tag "Fixed column number"
:value 70
:format "%v")
integer)
"27.1"
:safe ,(lambda (value) (or (booleanp value) (integerp value))))
(display-fill-column-indicator-character
display-fill-column-indicator
(choice
(character :tag "Use U+2502 to indicate fill column"
:value ?│)
(character :tag "Use | to indicate fill column"
:value ?|)
(const :tag "If possible, use U+2502 to indicate fill column, otherwise use |"
:value nil)
character)
"27.1"
:safe ,(lambda (value) (or (characterp value) (null value))))
(composition-break-at-point display boolean "29.1")
;; xfaces.c
(scalable-fonts-allowed
display (choice (const :tag "Don't allow scalable fonts" nil)
(const :tag "Allow any scalable font" t)
(repeat regexp))
"22.1")
;; xfns.c
(x-bitmap-file-path installation
(repeat (directory :format "%v")))
(x-gtk-use-old-file-dialog menu boolean "22.1")
(x-gtk-show-hidden-files menu boolean "22.1")
(x-gtk-file-dialog-help-text menu boolean "22.1")
(x-gtk-use-system-tooltips tooltip boolean "23.3")
;; xterm.c
(x-use-underline-position-properties display boolean "22.1")
(x-underline-at-descent-line display boolean "22.1")
(x-stretch-cursor display boolean "21.1")
(scroll-bar-adjust-thumb-portion windows boolean "24.4")
(x-scroll-event-delta-factor mouse float "29.1")
(x-gtk-use-native-input keyboard boolean "29.1")
(x-dnd-disable-motif-drag dnd boolean "29.1")
(x-auto-preserve-selections x
(choice (const :tag "Always preserve selections" t)
(repeat symbol))
"29.1")
;; xselect.c
(x-select-enable-clipboard-manager killing boolean "24.1")
;; xsettings.c
(font-use-system-font font-selection boolean "23.2")
;; xwidget.c
(xwidget-webkit-disable-javascript xwidget boolean "30.1")
;; haikuterm.c
(haiku-debug-on-fatal-error debug boolean "29.1")
;; haikufns.c
(haiku-use-system-tooltips tooltip boolean "29.1")))
(setq ;; If we did not specify any standard value expression above,
;; use the current value as the standard value.
standard (if (setq prop (memq :standard rest))
(cadr prop)
(if (default-boundp symbol)
(funcall quoter (default-value symbol))))
;; Don't complain about missing variables which are
;; irrelevant to this platform.
native-p (save-match-data
(cond
((string-match "\\`dos-" (symbol-name symbol))
(eq system-type 'ms-dos))
((string-match "\\`w32-" (symbol-name symbol))
(eq system-type 'windows-nt))
((string-match "\\`ns-" (symbol-name symbol))
(featurep 'ns))
((string-match "\\`haiku-" (symbol-name symbol))
(featurep 'haiku))
((eq symbol 'process-error-pause-time)
(not (eq system-type 'ms-dos)))
((eq symbol 'x-gtk-use-native-input)
(and (featurep 'x)
(featurep 'gtk)))
((string-match "\\`x-.*gtk" (symbol-name symbol))
(featurep 'gtk))
((string-match "clipboard-manager" (symbol-name symbol))
(boundp 'x-select-enable-clipboard-manager))
((or (equal "scroll-bar-adjust-thumb-portion"
(symbol-name symbol))
(equal "x-scroll-event-delta-factor"
(symbol-name symbol))
(equal "x-dnd-disable-motif-drag"
(symbol-name symbol))
(equal "x-auto-preserve-selections"
(symbol-name symbol)))
(featurep 'x))
((string-match "\\`x-" (symbol-name symbol))
(fboundp 'x-create-frame))
((string-match "selection" (symbol-name symbol))
(fboundp 'x-selection-exists-p))
((string-match "fringe" (symbol-name symbol))
(boundp 'fringe-bitmaps))
((string-match "\\`imagemagick" (symbol-name symbol))
(fboundp 'imagemagick-types))
((equal "font-use-system-font" (symbol-name symbol))
(featurep 'system-font-setting))
;; Conditioned on x-create-frame, because that's
;; the condition for loadup.el to preload tool-bar.el.
((string-match "tool-bar-" (symbol-name symbol))
(fboundp 'x-create-frame))
((string-match "tab-bar-" (symbol-name symbol))
(fboundp 'x-create-frame))
((string-match "image-" (symbol-name symbol))
(fboundp 'x-create-frame))
((equal "vertical-centering-font-regexp"
(symbol-name symbol))
;; Any function from fontset.c will do.
(fboundp 'new-fontset))
((string-match "xwidget-" (symbol-name symbol))
(boundp 'xwidget-internal))
(t t))))
(if (not (boundp symbol))
;; If variables are removed from C code, give an error here!
(and native-p
(message "Note, built-in variable `%S' not bound" symbol))
;; Save the standard value, unless we already did.
(or (get symbol 'standard-value)
(put symbol 'standard-value (list standard)))
;; We need these properties independent of whether cus-start is loaded.
(if (setq prop (memq :safe rest))
(put symbol 'safe-local-variable (cadr prop)))
(if (setq prop (memq :risky rest))
(put symbol 'risky-local-variable (cadr prop)))
(if (setq prop (memq :set rest))
(put symbol 'custom-set (cadr prop)))
;; This is used by describe-variable.
(if version (put symbol 'custom-version version))
;; Don't re-add to custom-delayed-init-variables post-startup.
(unless after-init-time
;; Note this is the _only_ initialize property we handle.
(if (eq (cadr (memq :initialize rest)) #'custom-initialize-delay)
;; These vars are defined early and should hence be initialized
;; early, even if this file happens to be loaded late. so add them
;; to the end of custom-delayed-init-variables. Otherwise,
;; auto-save-file-name-transforms will appear in customize-rogue.
(add-to-list 'custom-delayed-init-variables symbol 'append)))
;; If this is NOT while dumping Emacs, set up the rest of the
;; customization info. This is the stuff that is not needed
;; until someone does M-x customize etc.
(unless dump-mode
;; Add it to the right group(s).
(if (listp group)
(dolist (g group)
(custom-add-to-group g symbol 'custom-variable))
(custom-add-to-group group symbol 'custom-variable))
;; Set the type.
(put symbol 'custom-type type)
(while rest
(setq prop (car rest)
propval (cadr rest)
rest (nthcdr 2 rest))
(cond ((memq prop '(:standard :risky :safe :set))) ; handled above
((eq prop :tag)
(put symbol 'custom-tag propval))))))))
(custom-add-to-group 'font-lock 'open-paren-in-column-0-is-defun-start
'custom-variable)
;; Record cus-start as loaded if we have set up all the info that we can.
;; Don't record it as loaded if we have only set up the standard values
;; and safe/risky properties.
(unless dump-mode
(provide 'cus-start))
;;; cus-start.el ends here