1 ;;; startup.el --- process Emacs shell arguments
3 ;; Copyright (C) 1985, 1986, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
4 ;; 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
5 ;; Free Software Foundation, Inc.
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software: you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation, either version 3 of the License, or
15 ;; (at your option) any later version.
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
27 ;; This file parses the command line and gets Emacs running. Options
28 ;; on the command line are handled in precedence order. For priorities
29 ;; see the structure standard_args in the emacs.c file.
33 (setq top-level
'(normal-top-level))
35 (defvar command-line-processed nil
36 "Non-nil once command line has been processed.")
38 (defgroup initialization nil
39 "Emacs start-up procedure."
42 (defcustom initial-buffer-choice nil
43 "Buffer to show after starting Emacs.
44 If the value is nil and `inhibit-startup-screen' is nil, show the
45 startup screen. If the value is string, visit the specified file or
46 directory using `find-file'. If t, open the `*scratch*' buffer."
48 (const :tag
"Startup screen" nil
)
49 (directory :tag
"Directory" :value
"~/")
50 (file :tag
"File" :value
"~/file.txt")
51 (const :tag
"Lisp scratch buffer" t
))
53 :group
'initialization
)
55 (defcustom inhibit-startup-screen nil
56 "Non-nil inhibits the startup screen.
58 This is for use in your personal init file (but NOT site-start.el), once
59 you are familiar with the contents of the startup screen."
61 :group
'initialization
)
63 (defvaralias 'inhibit-splash-screen
'inhibit-startup-screen
)
64 (defvaralias 'inhibit-startup-message
'inhibit-startup-screen
)
66 (defvar startup-screen-inhibit-startup-screen nil
)
68 (defcustom inhibit-startup-echo-area-message nil
69 "*Non-nil inhibits the initial startup echo area message.
70 Setting this variable takes effect
71 only if you do it with the customization buffer
72 or if your `.emacs' file contains a line of this form:
73 (setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\")
74 If your `.emacs' file is byte-compiled, use the following form instead:
75 (eval '(setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\"))
76 Thus, someone else using a copy of your `.emacs' file will see
77 the startup message unless he personally acts to inhibit it."
78 :type
'(choice (const :tag
"Don't inhibit")
79 (string :tag
"Enter your user name, to inhibit"))
80 :group
'initialization
)
82 (defcustom inhibit-default-init nil
83 "*Non-nil inhibits loading the `default' library."
85 :group
'initialization
)
87 (defcustom inhibit-startup-buffer-menu nil
88 "*Non-nil inhibits display of buffer list when more than 2 files are loaded."
90 :group
'initialization
)
92 (defvar command-switch-alist nil
93 "Alist of command-line switches.
94 Elements look like (SWITCH-STRING . HANDLER-FUNCTION).
95 HANDLER-FUNCTION receives the switch string as its sole argument;
96 the remaining command-line args are in the variable `command-line-args-left'.")
98 (defvar command-line-args-left nil
99 "List of command-line args not yet processed.")
101 (defvaralias 'argv
'command-line-args-left
102 "List of command-line args not yet processed.
103 This is a convenience alias, so that one can write \(pop argv\)
104 inside of --eval command line arguments in order to access
105 following arguments.")
107 (defvar command-line-functions nil
;; lrs 7/31/89
108 "List of functions to process unrecognized command-line arguments.
109 Each function should access the dynamically bound variables
110 `argi' (the current argument) and `command-line-args-left' (the remaining
111 arguments). The function should return non-nil only if it recognizes and
112 processes `argi'. If it does so, it may consume successive arguments by
113 altering `command-line-args-left' to remove them.")
115 (defvar command-line-default-directory nil
116 "Default directory to use for command line arguments.
117 This is normally copied from `default-directory' when Emacs starts.")
119 ;;; This is here, rather than in x-win.el, so that we can ignore these
120 ;;; options when we are not using X.
121 (defconst command-line-x-option-alist
122 '(("-bw" 1 x-handle-numeric-switch border-width
)
123 ("-d" 1 x-handle-display
)
124 ("-display" 1 x-handle-display
)
125 ("-name" 1 x-handle-name-switch
)
126 ("-title" 1 x-handle-switch title
)
127 ("-T" 1 x-handle-switch title
)
128 ("-r" 0 x-handle-switch reverse t
)
129 ("-rv" 0 x-handle-switch reverse t
)
130 ("-reverse" 0 x-handle-switch reverse t
)
131 ("-reverse-video" 0 x-handle-switch reverse t
)
132 ("-fn" 1 x-handle-switch font
)
133 ("-font" 1 x-handle-switch font
)
134 ("-fs" 0 x-handle-initial-switch fullscreen fullboth
)
135 ("-fw" 0 x-handle-initial-switch fullscreen fullwidth
)
136 ("-fh" 0 x-handle-initial-switch fullscreen fullheight
)
137 ("-ib" 1 x-handle-numeric-switch internal-border-width
)
138 ("-g" 1 x-handle-geometry
)
139 ("-lsp" 1 x-handle-numeric-switch line-spacing
)
140 ("-geometry" 1 x-handle-geometry
)
141 ("-fg" 1 x-handle-switch foreground-color
)
142 ("-foreground" 1 x-handle-switch foreground-color
)
143 ("-bg" 1 x-handle-switch background-color
)
144 ("-background" 1 x-handle-switch background-color
)
145 ("-ms" 1 x-handle-switch mouse-color
)
146 ("-nbi" 0 x-handle-switch icon-type nil
)
147 ("-iconic" 0 x-handle-iconic
)
148 ("-xrm" 1 x-handle-xrm-switch
)
149 ("-cr" 1 x-handle-switch cursor-color
)
150 ("-vb" 0 x-handle-switch vertical-scroll-bars t
)
151 ("-hb" 0 x-handle-switch horizontal-scroll-bars t
)
152 ("-bd" 1 x-handle-switch
)
153 ("--border-width" 1 x-handle-numeric-switch border-width
)
154 ("--display" 1 x-handle-display
)
155 ("--name" 1 x-handle-name-switch
)
156 ("--title" 1 x-handle-switch title
)
157 ("--reverse-video" 0 x-handle-switch reverse t
)
158 ("--font" 1 x-handle-switch font
)
159 ("--fullscreen" 0 x-handle-initial-switch fullscreen fullboth
)
160 ("--fullwidth" 0 x-handle-initial-switch fullscreen fullwidth
)
161 ("--fullheight" 0 x-handle-initial-switch fullscreen fullheight
)
162 ("--internal-border" 1 x-handle-numeric-switch internal-border-width
)
163 ("--geometry" 1 x-handle-geometry
)
164 ("--foreground-color" 1 x-handle-switch foreground-color
)
165 ("--background-color" 1 x-handle-switch background-color
)
166 ("--mouse-color" 1 x-handle-switch mouse-color
)
167 ("--no-bitmap-icon" 0 x-handle-no-bitmap-icon
)
168 ("--iconic" 0 x-handle-iconic
)
169 ("--xrm" 1 x-handle-xrm-switch
)
170 ("--cursor-color" 1 x-handle-switch cursor-color
)
171 ("--vertical-scroll-bars" 0 x-handle-switch vertical-scroll-bars t
)
172 ("--line-spacing" 1 x-handle-numeric-switch line-spacing
)
173 ("--border-color" 1 x-handle-switch border-color
)
174 ("--smid" 1 x-handle-smid
)
175 ("--parent-id" 1 x-handle-parent-id
))
176 "Alist of X Windows options.
177 Each element has the form
178 (NAME NUMARGS HANDLER FRAME-PARAM VALUE)
179 where NAME is the option name string, NUMARGS is the number of arguments
180 that the option accepts, HANDLER is a function to call to handle the option.
181 FRAME-PARAM (optional) is the frame parameter this option specifies,
182 and VALUE is the value which is given to that frame parameter
183 \(most options use the argument for this, so VALUE is not present).")
185 (defconst command-line-ns-option-alist
186 '(("-NSAutoLaunch" 1 ns-ignore-1-arg
)
187 ("-NXAutoLaunch" 1 ns-ignore-1-arg
)
189 ("-NSHost" 1 ns-ignore-1-arg
)
190 ("-_NSMachLaunch" 1 ns-ignore-1-arg
)
191 ("-MachLaunch" 1 ns-ignore-1-arg
)
192 ("-NXOpen" 1 ns-ignore-1-arg
)
193 ("-NSOpen" 1 ns-handle-nxopen
)
194 ("-NXOpenTemp" 1 ns-ignore-1-arg
)
195 ("-NSOpenTemp" 1 ns-handle-nxopentemp
)
196 ("-GSFilePath" 1 ns-handle-nxopen
)
197 ;;("-bw" . x-handle-numeric-switch)
198 ;;("-d" . x-handle-display)
199 ;;("-display" . x-handle-display)
200 ("-name" 1 ns-handle-name-switch
)
201 ("-title" 1 ns-handle-switch title
)
202 ("-T" 1 ns-handle-switch title
)
203 ("-r" 0 ns-handle-switch reverse t
)
204 ("-rv" 0 ns-handle-switch reverse t
)
205 ("-reverse" 0 ns-handle-switch reverse t
)
206 ("-fn" 1 ns-handle-switch font
)
207 ("-font" 1 ns-handle-switch font
)
208 ("-ib" 1 ns-handle-numeric-switch internal-border-width
)
209 ;;("-g" . x-handle-geometry)
210 ;;("-geometry" . x-handle-geometry)
211 ("-fg" 1 ns-handle-switch foreground-color
)
212 ("-foreground" 1 ns-handle-switch foreground-color
)
213 ("-bg" 1 ns-handle-switch background-color
)
214 ("-background" 1 ns-handle-switch background-color
)
215 ; ("-ms" 1 ns-handle-switch mouse-color)
216 ("-itype" 0 ns-handle-switch icon-type t
)
217 ("-i" 0 ns-handle-switch icon-type t
)
218 ("-iconic" 0 ns-handle-iconic icon-type t
)
219 ;;("-xrm" . x-handle-xrm-switch)
220 ("-cr" 1 ns-handle-switch cursor-color
)
221 ("-vb" 0 ns-handle-switch vertical-scroll-bars t
)
222 ("-hb" 0 ns-handle-switch horizontal-scroll-bars t
)
223 ("-bd" 1 ns-handle-switch
)
224 ;; ("--border-width" 1 ns-handle-numeric-switch border-width)
225 ;; ("--display" 1 ns-handle-display)
226 ("--name" 1 ns-handle-name-switch
)
227 ("--title" 1 ns-handle-switch title
)
228 ("--reverse-video" 0 ns-handle-switch reverse t
)
229 ("--font" 1 ns-handle-switch font
)
230 ("--internal-border" 1 ns-handle-numeric-switch internal-border-width
)
231 ;; ("--geometry" 1 ns-handle-geometry)
232 ("--foreground-color" 1 ns-handle-switch foreground-color
)
233 ("--background-color" 1 ns-handle-switch background-color
)
234 ("--mouse-color" 1 ns-handle-switch mouse-color
)
235 ("--icon-type" 0 ns-handle-switch icon-type t
)
236 ("--iconic" 0 ns-handle-iconic
)
237 ;; ("--xrm" 1 ns-handle-xrm-switch)
238 ("--cursor-color" 1 ns-handle-switch cursor-color
)
239 ("--vertical-scroll-bars" 0 ns-handle-switch vertical-scroll-bars t
)
240 ("--border-color" 1 ns-handle-switch border-width
))
241 "Alist of NS options.
242 Each element has the form
243 (NAME NUMARGS HANDLER FRAME-PARAM VALUE)
244 where NAME is the option name string, NUMARGS is the number of arguments
245 that the option accepts, HANDLER is a function to call to handle the option.
246 FRAME-PARAM (optional) is the frame parameter this option specifies,
247 and VALUE is the value which is given to that frame parameter
248 \(most options use the argument for this, so VALUE is not present).")
251 (defvar before-init-hook nil
252 "Normal hook run after handling urgent options but before loading init files.")
254 (defvar after-init-hook nil
255 "Normal hook run after loading the init files, `~/.emacs' and `default.el'.
256 There is no `condition-case' around the running of these functions;
257 therefore, if you set `debug-on-error' non-nil in `.emacs',
258 an error in one of these functions will invoke the debugger.")
260 (defvar emacs-startup-hook nil
261 "Normal hook run after loading init files and handling the command line.")
263 (defvar term-setup-hook nil
264 "Normal hook run after loading terminal-specific Lisp code.
265 It also follows `emacs-startup-hook'. This hook exists for users to set,
266 so as to override the definitions made by the terminal-specific file.
267 Emacs never sets this variable itself.")
269 (defvar inhibit-startup-hooks nil
270 "Non-nil means don't run `term-setup-hook' and `emacs-startup-hook'.
271 This is because we already did so.")
273 (defvar keyboard-type nil
274 "The brand of keyboard you are using.
275 This variable is used to define the proper function and keypad
276 keys for use under X. It is used in a fashion analogous to the
277 environment variable TERM.")
279 (defvar window-setup-hook nil
280 "Normal hook run to initialize window system display.
281 Emacs runs this hook after processing the command line arguments and loading
282 the user's init file.")
284 (defcustom initial-major-mode
'lisp-interaction-mode
285 "Major mode command symbol to use for the initial `*scratch*' buffer."
287 :group
'initialization
)
289 (defvar init-file-user nil
290 "Identity of user whose `.emacs' file is or was read.
291 The value is nil if `-q' or `--no-init-file' was specified,
292 meaning do not load any init file.
294 Otherwise, the value may be an empty string, meaning
295 use the init file for the user who originally logged in,
296 or it may be a string containing a user's name meaning
297 use that person's init file.
299 In either of the latter cases, `(concat \"~\" init-file-user \"/\")'
300 evaluates to the name of the directory where the `.emacs' file was
303 Setting `init-file-user' does not prevent Emacs from loading
304 `site-start.el'. The only way to do that is to use `--no-site-file'.")
306 (defcustom site-run-file
"site-start"
307 "File containing site-wide run-time initializations.
308 This file is loaded at run-time before `~/.emacs'. It contains inits
309 that need to be in place for the entire site, but which, due to their
310 higher incidence of change, don't make sense to load into Emacs's
311 dumped image. Thus, the run-time load order is: 1. file described in
312 this variable, if non-nil; 2. `~/.emacs'; 3. `default.el'.
314 Don't use the `site-start.el' file for things some users may not like.
315 Put them in `default.el' instead, so that users can more easily
316 override them. Users can prevent loading `default.el' with the `-q'
317 option or by setting `inhibit-default-init' in their own init files,
318 but inhibiting `site-start.el' requires `--no-site-file', which
321 This variable is defined for customization so as to make
322 it visible in the relevant context. However, actually customizing it
323 is not allowed, since it would not work anyway. The only way to set
324 this variable usefully is to set it while building and dumping Emacs."
325 :type
'(choice (const :tag
"none" nil
) string
)
326 :group
'initialization
327 :initialize
'custom-initialize-default
328 :set
'(lambda (variable value
)
329 (error "Customizing `site-run-file' does not work")))
331 (defcustom mail-host-address nil
332 "*Name of this machine, for purposes of naming users."
333 :type
'(choice (const nil
) string
)
336 (defcustom user-mail-address
(if command-line-processed
338 (concat (user-login-name) "@"
339 (or mail-host-address
341 ;; Empty string means "not set yet".
343 "*Full mailing address of this user.
344 This is initialized with environment variable `EMAIL' or, as a
345 fallback, using `mail-host-address'. This is done after your
346 init file is read, in case it sets `mail-host-address'."
350 (defcustom auto-save-list-file-prefix
351 (cond ((eq system-type
'ms-dos
)
352 ;; MS-DOS cannot have initial dot, and allows only 8.3 names
353 (concat user-emacs-directory
"auto-save.list/_s"))
355 (concat user-emacs-directory
"auto-save-list/.saves-")))
356 "Prefix for generating `auto-save-list-file-name'.
357 This is used after reading your `.emacs' file to initialize
358 `auto-save-list-file-name', by appending Emacs's pid and the system name,
359 if you have not already set `auto-save-list-file-name' yourself.
360 Directories in the prefix will be created if necessary.
361 Set this to nil if you want to prevent `auto-save-list-file-name'
362 from being initialized."
363 :type
'(choice (const :tag
"Don't record a session's auto save list" nil
)
367 (defvar emacs-quick-startup nil
)
369 (defvar emacs-basic-display nil
)
371 (defvar init-file-debug nil
)
373 (defvar init-file-had-error nil
374 "Non-nil if there was an error loading the user's init file.")
376 (defvar normal-top-level-add-subdirs-inode-list nil
)
378 (defvar no-blinking-cursor nil
)
380 (defvar default-frame-background-mode
)
382 (defvar pure-space-overflow nil
383 "Non-nil if building Emacs overflowed pure space.")
385 (defvar pure-space-overflow-message
"\
386 Warning Warning!!! Pure space overflow !!!Warning Warning
387 \(See the node Pure Storage in the Lisp manual for details.)\n")
389 (defvar tutorial-directory nil
390 "Directory containing the Emacs TUTORIAL files.")
392 ;; Get correct value in a dumped, installed Emacs.
394 (setq tutorial-directory
(file-name-as-directory
395 (expand-file-name "tutorials" data-directory
))))
397 (defun normal-top-level-add-subdirs-to-load-path ()
398 "Add all subdirectories of current directory to `load-path'.
399 More precisely, this uses only the subdirectories whose names
400 start with letters or digits; it excludes any subdirectory named `RCS'
401 or `CVS', and any subdirectory that contains a file named `.nosearch'."
404 (pending (list default-directory
)))
405 ;; This loop does a breadth-first tree walk on DIR's subtree,
406 ;; putting each subdir into DIRS as its contents are examined.
408 (push (pop pending
) dirs
)
409 (let* ((this-dir (car dirs
))
410 (contents (directory-files this-dir
))
411 (default-directory this-dir
)
412 (canonicalized (if (fboundp 'untranslated-canonical-name
)
413 (untranslated-canonical-name this-dir
))))
414 ;; The Windows version doesn't report meaningful inode
415 ;; numbers, so use the canonicalized absolute file name of the
416 ;; directory instead.
417 (setq attrs
(or canonicalized
418 (nthcdr 10 (file-attributes this-dir
))))
419 (unless (member attrs normal-top-level-add-subdirs-inode-list
)
420 (push attrs normal-top-level-add-subdirs-inode-list
)
421 (dolist (file contents
)
422 ;; The lower-case variants of RCS and CVS are for DOS/Windows.
423 (unless (member file
'("." ".." "RCS" "CVS" "rcs" "cvs"))
424 (when (and (string-match "\\`[[:alnum:]]" file
)
425 ;; Avoid doing a `stat' when it isn't necessary
426 ;; because that can cause trouble when an NFS server
428 (not (string-match "\\.elc?\\'" file
))
429 (file-directory-p file
))
430 (let ((expanded (expand-file-name file
)))
431 (unless (file-exists-p (expand-file-name ".nosearch"
433 (setq pending
(nconc pending
(list expanded
)))))))))))
434 (normal-top-level-add-to-load-path (cdr (nreverse dirs
)))))
436 ;; This function is called from a subdirs.el file.
437 ;; It assumes that default-directory is the directory
438 ;; in which the subdirs.el file exists,
439 ;; and it adds to load-path the subdirs of that directory
440 ;; as specified in DIRS. Normally the elements of DIRS are relative.
441 (defun normal-top-level-add-to-load-path (dirs)
442 (let ((tail load-path
)
443 (thisdir (directory-file-name default-directory
)))
445 ;;Don't go all the way to the nil terminator.
447 (not (equal thisdir
(car tail
)))
448 (not (and (memq system-type
'(ms-dos windows-nt
))
449 (equal (downcase thisdir
) (downcase (car tail
))))))
450 (setq tail
(cdr tail
)))
451 ;;Splice the new section in.
453 (setcdr tail
(append (mapcar 'expand-file-name dirs
) (cdr tail
))))))
455 (defun normal-top-level ()
456 (if command-line-processed
457 (message "Back to top level.")
458 (setq command-line-processed t
)
459 (let ((dir default-directory
))
460 (with-current-buffer "*Messages*"
461 ;; Make it easy to do like "tail -f".
462 (set (make-local-variable 'window-point-insertion-type
) t
)
463 ;; Give *Messages* the same default-directory as *scratch*,
464 ;; just to keep things predictable.
465 (setq default-directory dir
)))
466 ;; `user-full-name' is now known; reset its standard-value here.
467 (put 'user-full-name
'standard-value
468 (list (default-value 'user-full-name
)))
469 ;; For root, preserve owner and group when editing files.
470 (if (equal (user-uid) 0)
471 (setq backup-by-copying-when-mismatch t
))
472 ;; Look in each dir in load-path for a subdirs.el file.
473 ;; If we find one, load it, which will add the appropriate subdirs
474 ;; of that dir into load-path,
475 ;; Look for a leim-list.el file too. Loading it will register
476 ;; available input methods.
477 (let ((tail load-path
) dir
)
479 (setq dir
(car tail
))
480 (let ((default-directory dir
))
481 (load (expand-file-name "subdirs.el") t t t
))
482 (let ((default-directory dir
))
483 (load (expand-file-name "leim-list.el") t t t
))
484 ;; We don't use a dolist loop and we put this "setq-cdr" command at
485 ;; the end, because the subdirs.el files may add elements to the end
486 ;; of load-path and we want to take it into account.
487 (setq tail
(cdr tail
))))
488 ;; If the PWD environment variable isn't accurate, delete it.
489 (let ((pwd (getenv "PWD")))
491 ;; Use FOO/., so that if FOO is a symlink, file-attributes
492 ;; describes the directory linked to, not FOO itself.
493 (or (equal (file-attributes
494 (concat (file-name-as-directory pwd
) "."))
496 (concat (file-name-as-directory default-directory
)
498 (setq process-environment
499 (delete (concat "PWD=" pwd
)
500 process-environment
)))))
501 (setq default-directory
(abbreviate-file-name default-directory
))
502 (let ((menubar-bindings-done nil
))
505 ;; Do this again, in case .emacs defined more abbreviations.
506 (setq default-directory
(abbreviate-file-name default-directory
))
507 ;; Specify the file for recording all the auto save files of this session.
508 ;; This is used by recover-session.
509 (or auto-save-list-file-name
510 (and auto-save-list-file-prefix
511 (setq auto-save-list-file-name
512 ;; Under MS-DOS our PID is almost always reused between
513 ;; Emacs invocations. We need something more unique.
514 (cond ((eq system-type
'ms-dos
)
515 ;; We are going to access the auto-save
516 ;; directory, so make sure it exists.
518 (file-name-directory auto-save-list-file-prefix
)
523 auto-save-list-file-prefix
))
528 auto-save-list-file-prefix
531 (unless inhibit-startup-hooks
532 (run-hooks 'emacs-startup-hook
)
534 (run-hooks 'term-setup-hook
)))
536 ;; Don't do this if we failed to create the initial frame,
537 ;; for instance due to a dense colormap.
538 (when (or frame-initial-frame
539 ;; If frame-initial-frame has no meaning, do this anyway.
540 (not (and initial-window-system
542 (not (eq initial-window-system
'pc
)))))
543 ;; Modify the initial frame based on what .emacs puts into
545 (if (fboundp 'frame-notice-user-settings
)
546 (frame-notice-user-settings))
547 ;; Set the faces for the initial background mode even if
548 ;; frame-notice-user-settings didn't (such as on a tty).
549 ;; frame-set-background-mode is idempotent, so it won't
550 ;; cause any harm if it's already been done.
551 (if (fboundp 'frame-set-background-mode
)
552 (frame-set-background-mode (selected-frame))))
554 ;; Now we know the user's default font, so add it to the menu.
555 (if (fboundp 'font-menu-add-default
)
556 (font-menu-add-default))
557 (and window-setup-hook
558 (run-hooks 'window-setup-hook
))
559 (or menubar-bindings-done
560 (if (display-popup-menus-p)
561 (precompute-menubar-bindings)))))
562 ;; Subprocesses of Emacs do not have direct access to the terminal, so
563 ;; unless told otherwise they should only assume a dumb terminal.
564 ;; We are careful to do it late (after term-setup-hook), although the
565 ;; new multi-tty code does not use $TERM any more there anyway.
566 (setenv "TERM" "dumb")
567 ;; Remove DISPLAY from the process-environment as well. This allows
568 ;; `callproc.c' to give it a useful adaptive default which is either
569 ;; the value of the `display' frame-parameter or the DISPLAY value
570 ;; from initial-environment.
571 (let ((display (frame-parameter nil
'display
)))
572 ;; Be careful which DISPLAY to remove from process-environment: follow
573 ;; the logic of `callproc.c'.
574 (if (stringp display
) (setq display
(concat "DISPLAY=" display
))
575 (dolist (varval initial-environment
)
576 (if (string-match "\\`DISPLAY=" varval
)
577 (setq display varval
))))
579 (delete display process-environment
)))))
581 ;; Precompute the keyboard equivalents in the menu bar items.
582 (defun precompute-menubar-bindings ()
583 (let ((submap (lookup-key global-map
[menu-bar
])))
585 (and (consp (car submap
))
586 (symbolp (car (car submap
)))
587 (stringp (car-safe (cdr (car submap
))))
588 (keymapp (cdr (cdr (car submap
))))
590 (x-popup-menu nil
(cdr (cdr (car submap
))))
593 (setq submap
(cdr submap
))))
594 (setq define-key-rebound-commands t
))
596 ;; Command-line options supported by tty's:
597 (defconst tty-long-option-alist
598 '(("--name" .
"-name")
600 ("--reverse-video" .
"-reverse")
601 ("--foreground-color" .
"-fg")
602 ("--background-color" .
"-bg")
603 ("--color" .
"-color")))
605 (defconst tool-bar-images-pixel-height
24
606 "Height in pixels of images in the tool bar.")
608 (defvar tool-bar-originally-present nil
609 "Non-nil if tool-bars are present before user and site init files are read.")
611 (defvar handle-args-function-alist
'((nil . tty-handle-args
))
612 "Functions for processing window-system dependent command-line arguments.
613 Window system startup files should add their own function to this
614 alist, which should parse the command line arguments. Those
615 pertaining to the window system should be processed and removed
616 from the returned command line.")
618 (defvar window-system-initialization-alist
'((nil . ignore
))
619 "Alist of window-system initialization functions.
620 Window-system startup files should add their own initialization
621 function to this list. The function should take no arguments,
622 and initialize the window system environment to prepare for
623 opening the first frame (e.g. open a connection to an X server).")
625 ;; Handle the X-like command-line arguments "-fg", "-bg", "-name", etc.
626 (defun tty-handle-args (args)
630 (not (equal (car args
) "--")))
631 (let* ((argi (pop args
))
634 ;; Check for long options with attached arguments
635 ;; and separate out the attached option argument into argval.
636 (when (string-match "^\\(--[^=]*\\)=" argi
)
637 (setq argval
(substring argi
(match-end 0))
638 argi
(match-string 1 argi
)))
639 (when (string-match "^--" argi
)
640 (setq completion
(try-completion argi tty-long-option-alist
))
641 (if (eq completion t
)
642 ;; Exact match for long option.
643 (setq argi
(cdr (assoc argi tty-long-option-alist
)))
644 (if (stringp completion
)
645 (let ((elt (assoc completion tty-long-option-alist
)))
646 ;; Check for abbreviated long option.
648 (error "Option `%s' is ambiguous" argi
))
649 (setq argi
(cdr elt
)))
650 ;; Check for a short option.
653 (cond ((member argi
'("-fg" "-foreground"))
654 (push (cons 'foreground-color
(or argval
(pop args
)))
655 default-frame-alist
))
656 ((member argi
'("-bg" "-background"))
657 (push (cons 'background-color
(or argval
(pop args
)))
658 default-frame-alist
))
659 ((member argi
'("-T" "-name"))
660 (unless argval
(setq argval
(pop args
)))
664 (let ((case-fold-search t
)
666 (setq argval
(invocation-name))
668 ;; Change any . or * characters in name to
669 ;; hyphens, so as to emulate behavior on X.
671 (setq i
(string-match "[.*]" argval
))
674 default-frame-alist
))
675 ((member argi
'("-r" "-rv" "-reverse"))
677 default-frame-alist
))
678 ((equal argi
"-color")
679 (unless argval
(setq argval
8)) ; default --color means 8 ANSI colors
680 (push (cons 'tty-color-mode
682 ((numberp argval
) argval
)
683 ((string-match "-?[0-9]+" argval
)
684 (string-to-number argval
))
685 (t (intern argval
))))
686 default-frame-alist
))
691 (declare-function x-get-resource
"frame.c"
692 (attribute class
&optional component subclass
))
693 (declare-function tool-bar-mode
"tool-bar" (&optional arg
))
694 (declare-function tool-bar-setup
"tool-bar")
696 (defun command-line ()
697 (setq before-init-time
(current-time)
699 command-line-default-directory default-directory
)
701 ;; Choose a reasonable location for temporary files.
702 (custom-reevaluate-setting 'temporary-file-directory
)
703 (custom-reevaluate-setting 'small-temporary-file-directory
)
704 (custom-reevaluate-setting 'auto-save-file-name-transforms
)
706 ;; See if we should import version-control from the environment variable.
707 (let ((vc (getenv "VERSION_CONTROL")))
708 (cond ((eq vc nil
)) ;don't do anything if not set
709 ((member vc
'("t" "numbered"))
710 (setq version-control t
))
711 ((member vc
'("nil" "existing"))
712 (setq version-control nil
))
713 ((member vc
'("never" "simple"))
714 (setq version-control
'never
))))
716 ;;! This has been commented out; I currently find the behavior when
717 ;;! split-window-keep-point is nil disturbing, but if I can get used
718 ;;! to it, then it would be better to eliminate the option.
719 ;;! ;; Choose a good default value for split-window-keep-point.
720 ;;! (setq split-window-keep-point (> baud-rate 2400))
722 ;; Set the default strings to display in mode line for
723 ;; end-of-line formats that aren't native to this platform.
725 ((memq system-type
'(ms-dos windows-nt emx
))
726 (setq eol-mnemonic-unix
"(Unix)"
727 eol-mnemonic-mac
"(Mac)"))
728 ;; Both Mac and Unix EOLs are now "native" on Mac OS so keep the
729 ;; abbreviated strings `/' and `:' set in coding.c for them.
730 ((eq system-type
'macos
)
731 (setq eol-mnemonic-dos
"(DOS)"))
732 (t ; this is for Unix/GNU/Linux systems
733 (setq eol-mnemonic-dos
"(DOS)"
734 eol-mnemonic-mac
"(Mac)")))
736 ;; Make sure window system's init file was loaded in loadup.el if
737 ;; using a window system.
738 (condition-case error
739 (unless noninteractive
740 (if (and initial-window-system
743 (concat (symbol-name initial-window-system
) "-win")))))
744 (error "Unsupported window system `%s'" initial-window-system
))
745 ;; Process window-system specific command line parameters.
746 (setq command-line-args
748 (or (cdr (assq initial-window-system handle-args-function-alist
))
749 (error "Unsupported window system `%s'" initial-window-system
))
751 ;; Initialize the window system. (Open connection, etc.)
753 (or (cdr (assq initial-window-system window-system-initialization-alist
))
754 (error "Unsupported window system `%s'" initial-window-system
))))
755 ;; If there was an error, print the error message and exit.
758 (if (eq (car error
) 'error
)
759 (apply 'concat
(cdr error
))
760 (if (memq 'file-error
(get (car error
) 'error-conditions
))
763 (mapconcat (lambda (obj) (prin1-to-string obj t
))
764 (cdr (cdr error
)) ", "))
766 (get (car error
) 'error-message
)
767 (mapconcat (lambda (obj) (prin1-to-string obj t
))
769 'external-debugging-output
)
770 (terpri 'external-debugging-output
)
771 (setq initial-window-system nil
)
774 (set-locale-environment nil
)
776 ;; Convert preloaded file names in load-history to absolute.
777 (let ((simple-file-name
778 ;; Look for simple.el or simple.elc and use their directory
779 ;; as the place where all Lisp files live.
780 (locate-file "simple" load-path
(get-load-suffixes)))
782 ;; Don't abort if simple.el cannot be found, but print a warning.
783 (if (null simple-file-name
)
785 (princ "Warning: Could not find simple.el nor simple.elc"
786 'external-debugging-output
)
787 (terpri 'external-debugging-output
))
788 (setq lisp-dir
(file-truename (file-name-directory simple-file-name
)))
790 (mapcar (lambda (elt)
791 (if (and (stringp (car elt
))
792 (not (file-name-absolute-p (car elt
))))
793 (cons (concat lisp-dir
799 ;; Convert the arguments to Emacs internal representation.
800 (let ((args (cdr command-line-args
)))
803 (decode-coding-string (car args
) locale-coding-system t
))
807 (args (cdr command-line-args
)))
809 ;; Figure out which user's init file to load,
810 ;; either from the environment or from the options.
811 (setq init-file-user
(if noninteractive nil
(user-login-name)))
812 ;; If user has not done su, use current $HOME to find .emacs.
814 (equal init-file-user
(user-real-login-name))
815 (setq init-file-user
""))
817 ;; Process the command-line args, and delete the arguments
818 ;; processed. This is consistent with the way main in emacs.c
820 (while (and (not done
) args
)
821 (let* ((longopts '(("--no-init-file") ("--no-site-file") ("--debug-init")
822 ("--user") ("--iconic") ("--icon-type") ("--quick")
823 ("--no-blinking-cursor") ("--basic-display")))
827 ;; Handle --OPTION=VALUE format.
828 (when (string-match "^\\(--[^=]*\\)=" argi
)
829 (setq argval
(substring argi
(match-end 0))
830 argi
(match-string 1 argi
)))
831 (unless (equal argi
"--")
832 (let ((completion (try-completion argi longopts
)))
833 (if (eq completion t
)
834 (setq argi
(substring argi
1))
835 (if (stringp completion
)
836 (let ((elt (assoc completion longopts
)))
838 (error "Option `%s' is ambiguous" argi
))
839 (setq argi
(substring (car elt
) 1)))
843 ((member argi
'("-Q" "-quick"))
844 (setq init-file-user nil
846 emacs-quick-startup t
))
847 ((member argi
'("-D" "-basic-display"))
848 (setq no-blinking-cursor t
849 emacs-basic-display t
)
850 (push '(vertical-scroll-bars . nil
) initial-frame-alist
))
851 ((member argi
'("-q" "-no-init-file"))
852 (setq init-file-user nil
))
853 ((member argi
'("-u" "-user"))
854 (setq init-file-user
(or argval
(pop args
))
856 ((equal argi
"-no-site-file")
857 (setq site-run-file nil
))
858 ((equal argi
"-debug-init")
859 (setq init-file-debug t
))
860 ((equal argi
"-iconic")
861 (push '(visibility . icon
) initial-frame-alist
))
862 ((member argi
'("-icon-type" "-i" "-itype"))
863 (push '(icon-type . t
) default-frame-alist
))
864 ((member argi
'("-nbc" "-no-blinking-cursor"))
865 (setq no-blinking-cursor t
))
866 ;; Push the popped arg back on the list of arguments.
870 ;; Was argval set but not used?
872 (error "Option `%s' doesn't allow an argument" argi
))))
874 ;; Re-attach the program name to the front of the arg list.
875 (and command-line-args
876 (setcdr command-line-args args
)))
878 (run-hooks 'before-init-hook
)
880 ;; Under X Window, this creates the X frame and deletes the terminal frame.
884 ;; Turn off blinking cursor if so specified in X resources. This is here
885 ;; only because all other settings of no-blinking-cursor are here.
886 (unless (or noninteractive
888 (and (memq window-system
'(x w32 ns
))
889 (not (member (x-get-resource "cursorBlink" "CursorBlink")
891 (setq no-blinking-cursor t
))
893 ;; If frame was created with a menu bar, set menu-bar-mode on.
894 (unless (or noninteractive
896 (and (memq initial-window-system
'(x w32
))
897 (<= (frame-parameter nil
'menu-bar-lines
) 0)))
900 (unless (or noninteractive
(not (fboundp 'tool-bar-mode
)))
901 ;; Set up the tool-bar. Do this even in tty frames, so that there
902 ;; is a tool-bar if Emacs later opens a graphical frame.
903 (if (or emacs-basic-display
904 (and (numberp (frame-parameter nil
'tool-bar-lines
))
905 (<= (frame-parameter nil
'tool-bar-lines
) 0)))
906 ;; On a graphical display with the toolbar disabled via X
907 ;; resources, set up the toolbar without enabling it.
909 ;; Otherwise, enable tool-bar-mode.
912 ;; Can't do this init in defcustom because the relevant variables
914 (custom-reevaluate-setting 'blink-cursor-mode
)
915 (custom-reevaluate-setting 'tooltip-mode
)
916 (custom-reevaluate-setting 'global-font-lock-mode
)
917 (custom-reevaluate-setting 'mouse-wheel-down-event
)
918 (custom-reevaluate-setting 'mouse-wheel-up-event
)
919 (custom-reevaluate-setting 'file-name-shadow-mode
)
920 (custom-reevaluate-setting 'send-mail-function
)
921 (custom-reevaluate-setting 'focus-follows-mouse
)
922 (custom-reevaluate-setting 'global-auto-composition-mode
)
923 (custom-reevaluate-setting 'transient-mark-mode
)
924 (custom-reevaluate-setting 'auto-encryption-mode
)
926 (normal-erase-is-backspace-setup-frame)
928 ;; Register default TTY colors for the case the terminal hasn't a
929 ;; terminal init file. We do this regardles of whether the terminal
930 ;; supports colors or not and regardless the current display type,
931 ;; since users can connect to color-capable terminals and also
932 ;; switch color support on or off in mid-session by setting the
933 ;; tty-color-mode frame parameter.
934 ;; Exception: the `pc' ``window system'' has only 16 fixed colors,
935 ;; and they are already set at this point by a suitable function in
936 ;; window-system-initialization-alist.
937 (or (eq initial-window-system
'pc
)
938 (tty-register-default-colors))
940 ;; Record whether the tool-bar is present before the user and site
941 ;; init files are processed. frame-notice-user-settings uses this
942 ;; to determine if the tool-bar has been disabled by the init files,
943 ;; and the frame needs to be resized.
944 (when (fboundp 'frame-notice-user-settings
)
945 (let ((tool-bar-lines (or (assq 'tool-bar-lines initial-frame-alist
)
946 (assq 'tool-bar-lines default-frame-alist
))))
947 (setq tool-bar-originally-present
950 (not (eq 0 (cdr tool-bar-lines
)))))))
952 (let ((old-scalable-fonts-allowed scalable-fonts-allowed
)
953 (old-font-list-limit font-list-limit
)
954 (old-face-ignored-fonts face-ignored-fonts
))
956 ;; Run the site-start library if it exists. The point of this file is
957 ;; that it is run before .emacs. There is no point in doing this after
958 ;; .emacs; that is useless.
959 ;; Note that user-init-file is nil at this point. Code that might
960 ;; be loaded from site-run-file and wants to test if -q was given
961 ;; should check init-file-user instead, since that is already set.
962 ;; See cus-edit.el for an example.
964 (load site-run-file t t
))
966 ;; Sites should not disable this. Only individuals should disable
967 ;; the startup screen.
968 (setq inhibit-startup-screen nil
)
970 ;; Warn for invalid user name.
972 (if (string-match "[~/:\n]" init-file-user
)
973 (display-warning 'initialization
974 (format "Invalid user name %s"
977 (if (file-directory-p (expand-file-name
978 ;; We don't support ~USER on MS-Windows except
979 ;; for the current user, and always load .emacs
980 ;; from the current user's home directory (see
981 ;; below). So always check "~", even if invoked
982 ;; with "-u USER", or if $USER or $LOGNAME are
983 ;; set to something different.
984 (if (eq system-type
'windows-nt
)
986 (concat "~" init-file-user
))))
988 (display-warning 'initialization
989 (format "User %s has no home directory"
993 ;; Load that user's init file, or the default one, or none.
994 (let (debug-on-error-from-init-file
995 debug-on-error-should-be-set
996 (debug-on-error-initial
997 (if (eq init-file-debug t
) 'startup init-file-debug
))
998 (orig-enable-multibyte default-enable-multibyte-characters
))
999 (let ((debug-on-error debug-on-error-initial
)
1000 ;; This function actually reads the init files.
1005 (let ((user-init-file-1
1007 ((eq system-type
'ms-dos
)
1008 (concat "~" init-file-user
"/_emacs"))
1009 ((eq system-type
'windows-nt
)
1010 ;; Prefer .emacs on Windows.
1011 (if (directory-files "~" nil
"^\\.emacs\\(\\.elc?\\)?$")
1013 ;; Also support _emacs for compatibility.
1014 (if (directory-files "~" nil
"^_emacs\\(\\.elc?\\)?$")
1016 ;; But default to .emacs if _emacs does not exist.
1019 (concat "~" init-file-user
"/.emacs")))))
1020 ;; This tells `load' to store the file name found
1021 ;; into user-init-file.
1022 (setq user-init-file t
)
1023 (load user-init-file-1 t t
)
1025 (when (eq user-init-file t
)
1026 ;; If we did not find ~/.emacs, try
1027 ;; ~/.emacs.d/init.el.
1031 (file-name-as-directory
1032 (concat "~" init-file-user
"/.emacs.d")))))
1033 (load otherfile t t
)
1035 ;; If we did not find the user's init file,
1036 ;; set user-init-file conclusively.
1037 ;; Don't let it be set from default.el.
1038 (when (eq user-init-file t
)
1039 (setq user-init-file user-init-file-1
))))
1041 ;; If we loaded a compiled file, set
1042 ;; `user-init-file' to the source version if that
1044 (when (and user-init-file
1045 (equal (file-name-extension user-init-file
)
1047 (let* ((source (file-name-sans-extension user-init-file
))
1048 (alt (concat source
".el")))
1049 (setq source
(cond ((file-exists-p alt
) alt
)
1050 ((file-exists-p source
) source
)
1053 (when (file-newer-than-file-p source user-init-file
)
1054 (message "Warning: %s is newer than %s"
1055 source user-init-file
)
1057 (setq user-init-file source
))))
1059 (unless inhibit-default-init
1060 (let ((inhibit-startup-screen nil
))
1061 ;; Users are supposed to be told their rights.
1062 ;; (Plus how to get help and how to undo.)
1063 ;; Don't you dare turn this off for anyone
1065 (load "default" t t
)))))))))
1067 ;; Do this without a condition-case if the user wants to debug.
1069 (condition-case error
1072 (setq init-file-had-error nil
))
1076 (format "An error occurred while loading `%s':\n\n%s%s%s\n\n\
1077 To ensure normal operation, you should investigate and remove the
1078 cause of the error in your initialization file. Start Emacs with
1079 the `--debug-init' option to view a complete error backtrace."
1081 (get (car error
) 'error-message
)
1082 (if (cdr error
) ": " "")
1083 (mapconcat (lambda (s) (prin1-to-string s t
)) (cdr error
) ", "))
1085 (setq init-file-had-error t
))))
1087 (if (and deactivate-mark transient-mark-mode
)
1088 (with-current-buffer (window-buffer)
1091 ;; If the user has a file of abbrevs, read it (unless -batch).
1092 (when (and (not noninteractive
)
1093 (file-exists-p abbrev-file-name
)
1094 (file-readable-p abbrev-file-name
))
1095 (quietly-read-abbrev-file abbrev-file-name
))
1097 ;; If the abbrevs came entirely from the init file or the
1098 ;; abbrevs file, they do not need saving.
1099 (setq abbrevs-changed nil
)
1101 ;; If we can tell that the init file altered debug-on-error,
1102 ;; arrange to preserve the value that it set up.
1103 (or (eq debug-on-error debug-on-error-initial
)
1104 (setq debug-on-error-should-be-set t
1105 debug-on-error-from-init-file debug-on-error
)))
1106 (if debug-on-error-should-be-set
1107 (setq debug-on-error debug-on-error-from-init-file
))
1108 (unless (or default-enable-multibyte-characters
1109 (eq orig-enable-multibyte default-enable-multibyte-characters
))
1110 ;; Init file changed to unibyte. Reset existing multibyte
1111 ;; buffers (probably *scratch*, *Messages*, *Minibuff-0*).
1112 ;; Arguably this should only be done if they're free of
1113 ;; multibyte characters.
1114 (mapc (lambda (buffer)
1115 (with-current-buffer buffer
1116 (if enable-multibyte-characters
1117 (set-buffer-multibyte nil
))))
1119 ;; Also re-set the language environment in case it was
1120 ;; originally done before unibyte was set and is sensitive to
1121 ;; unibyte (display table, terminal coding system &c).
1122 (set-language-environment current-language-environment
)))
1124 ;; Do this here in case the init file sets mail-host-address.
1125 (if (equal user-mail-address
"")
1126 (setq user-mail-address
(or (getenv "EMAIL")
1127 (concat (user-login-name) "@"
1128 (or mail-host-address
1131 ;; Originally face attributes were specified via
1132 ;; `font-lock-face-attributes'. Users then changed the default
1133 ;; face attributes by setting that variable. However, we try and
1134 ;; be back-compatible and respect its value if set except for
1135 ;; faces where M-x customize has been used to save changes for the
1137 (when (boundp 'font-lock-face-attributes
)
1138 (let ((face-attributes font-lock-face-attributes
))
1139 (while face-attributes
1140 (let* ((face-attribute (pop face-attributes
))
1141 (face (car face-attribute
)))
1142 ;; Rustle up a `defface' SPEC from a
1143 ;; `font-lock-face-attributes' entry.
1144 (unless (get face
'saved-face
)
1145 (let ((foreground (nth 1 face-attribute
))
1146 (background (nth 2 face-attribute
))
1147 (bold-p (nth 3 face-attribute
))
1148 (italic-p (nth 4 face-attribute
))
1149 (underline-p (nth 5 face-attribute
))
1152 (setq face-spec
(cons ':foreground
(cons foreground face-spec
))))
1154 (setq face-spec
(cons ':background
(cons background face-spec
))))
1156 (setq face-spec
(append '(:weight bold
) face-spec
)))
1158 (setq face-spec
(append '(:slant italic
) face-spec
)))
1160 (setq face-spec
(append '(:underline t
) face-spec
)))
1161 (face-spec-set face
(list (list t face-spec
)) nil
)))))))
1163 ;; If parameter have been changed in the init file which influence
1164 ;; face realization, clear the face cache so that new faces will
1166 (unless (and (eq scalable-fonts-allowed old-scalable-fonts-allowed
)
1167 (eq font-list-limit old-font-list-limit
)
1168 (eq face-ignored-fonts old-face-ignored-fonts
))
1169 (clear-face-cache)))
1171 (setq after-init-time
(current-time))
1172 (run-hooks 'after-init-hook
)
1174 ;; Decode all default-directory.
1175 (if (and default-enable-multibyte-characters locale-coding-system
)
1177 (dolist (elt (buffer-list))
1179 (if default-directory
1180 (setq default-directory
1181 (decode-coding-string default-directory
1182 locale-coding-system t
))))
1183 (setq command-line-default-directory
1184 (decode-coding-string command-line-default-directory
1185 locale-coding-system t
))))
1187 ;; If *scratch* exists and init file didn't change its mode, initialize it.
1188 (if (get-buffer "*scratch*")
1189 (with-current-buffer "*scratch*"
1190 (if (eq major-mode
'fundamental-mode
)
1191 (funcall initial-major-mode
))))
1193 ;; Load library for our terminal type.
1194 ;; User init file can set term-file-prefix to nil to prevent this.
1195 (unless (or noninteractive
1196 initial-window-system
)
1197 (tty-run-terminal-initialization (selected-frame)))
1199 ;; Update the out-of-memory error message based on user's key bindings
1200 ;; for save-some-buffers.
1201 (setq memory-signal-data
1203 (substitute-command-keys "Memory exhausted--use \\[save-some-buffers] then exit and restart Emacs")))
1205 ;; Process the remaining args.
1206 (command-line-1 (cdr command-line-args
))
1208 ;; If -batch, terminate after processing the command options.
1209 (if noninteractive
(kill-emacs t
))
1211 ;; In daemon mode, start the server to allow clients to connect.
1212 ;; This is done after loading the user's init file and after
1213 ;; processing all command line arguments to allow e.g. `server-name'
1214 ;; to be changed before the server starts.
1218 ;; Run emacs-session-restore (session management) if started by
1219 ;; the session manager and we have a session manager connection.
1220 (if (and (boundp 'x-session-previous-id
)
1221 (stringp x-session-previous-id
))
1223 (emacs-session-restore x-session-previous-id
))))
1225 (defcustom initial-scratch-message
(purecopy "\
1226 ;; This buffer is for notes you don't want to save, and for Lisp evaluation.
1227 ;; If you want to create a file, visit that file with C-x C-f,
1228 ;; then enter the text in that file's own buffer.
1231 "Initial message displayed in *scratch* buffer at startup.
1232 If this is nil, no message will be displayed."
1233 :type
'(choice (text :tag
"Message")
1234 (const :tag
"none" nil
))
1235 :group
'initialization
)
1238 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1239 ;;; Fancy splash screen
1240 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1242 (defvar fancy-startup-text
1243 '((:face
(variable-pitch (:foreground
"red"))
1246 (lambda (button) (browse-url "http://www.gnu.org/software/emacs/"))
1247 "Browse http://www.gnu.org/software/emacs/")
1248 ", one component of the "
1251 (if (eq system-type
'gnu
/linux
)
1253 (lambda (button) (browse-url "http://www.gnu.org/gnu/linux-and-gnu.html"))
1254 "Browse http://www.gnu.org/gnu/linux-and-gnu.html")
1255 '("GNU" (lambda (button) (describe-gnu-project))
1256 "Display info on the GNU project")))
1257 " operating system.\n\n"
1258 :link
("Emacs Tutorial" (lambda (button) (help-with-tutorial)))
1259 "\tLearn basic keystroke commands"
1261 (let* ((en "TUTORIAL")
1262 (tut (or (get-language-info current-language-environment
1265 (title (with-temp-buffer
1266 (insert-file-contents
1267 (expand-file-name tut tutorial-directory
)
1269 (search-forward ".")
1270 (buffer-substring (point-min) (1- (point))))))
1271 ;; If there is a specific tutorial for the current language
1272 ;; environment and it is not English, append its title.
1273 (if (string= en tut
)
1275 (concat " (" title
")"))))
1277 :face variable-pitch
1278 :link
("Emacs Guided Tour"
1279 (lambda (button) (browse-url "http://www.gnu.org/software/emacs/tour/"))
1280 "Browse http://www.gnu.org/software/emacs/tour/")
1281 "\tOverview of Emacs features at gnu.org\n"
1282 :link
("View Emacs Manual" (lambda (button) (info-emacs-manual)))
1283 "\tView the Emacs manual using Info\n"
1284 :link
("Absence of Warranty" (lambda (button) (describe-no-warranty)))
1285 "\tGNU Emacs comes with "
1286 :face
(variable-pitch (:slant oblique
))
1287 "ABSOLUTELY NO WARRANTY\n"
1288 :face variable-pitch
1289 :link
("Copying Conditions" (lambda (button) (describe-copying)))
1290 "\tConditions for redistributing and changing Emacs\n"
1291 :link
("Ordering Manuals" (lambda (button) (view-order-manuals)))
1292 "\tPurchasing printed copies of manuals\n"
1294 "A list of texts to show in the middle part of splash screens.
1295 Each element in the list should be a list of strings or pairs
1296 `:face FACE', like `fancy-splash-insert' accepts them.")
1298 (defvar fancy-about-text
1299 '((:face
(variable-pitch (:foreground
"red"))
1302 (lambda (button) (browse-url "http://www.gnu.org/software/emacs/"))
1303 "Browse http://www.gnu.org/software/emacs/")
1304 ", one component of the "
1307 (if (eq system-type
'gnu
/linux
)
1309 (lambda (button) (browse-url "http://www.gnu.org/gnu/linux-and-gnu.html"))
1310 "Browse http://www.gnu.org/gnu/linux-and-gnu.html")
1311 '("GNU" (lambda (button) (describe-gnu-project))
1312 "Display info on the GNU project.")))
1313 " operating system.\n"
1315 (list 'variable-pitch
1317 (if (eq (frame-parameter nil
'background-mode
) 'dark
)
1318 "cyan" "darkblue"))))
1320 (lambda () (emacs-version))
1322 :face
(variable-pitch (:height
0.8))
1323 (lambda () emacs-copyright
)
1325 :face variable-pitch
1328 (view-file (expand-file-name "AUTHORS" data-directory
))
1329 (goto-char (point-min))))
1330 "\tMany people have contributed code included in GNU Emacs\n"
1331 :link
("Contributing"
1333 (view-file (expand-file-name "CONTRIBUTE" data-directory
))
1334 (goto-char (point-min))))
1335 "\tHow to contribute improvements to Emacs\n"
1337 :link
("GNU and Freedom" (lambda (button) (describe-gnu-project)))
1338 "\tWhy we developed GNU Emacs, and the GNU operating system\n"
1339 :link
("Absence of Warranty" (lambda (button) (describe-no-warranty)))
1340 "\tGNU Emacs comes with "
1341 :face
(variable-pitch (:slant oblique
))
1342 "ABSOLUTELY NO WARRANTY\n"
1343 :face variable-pitch
1344 :link
("Copying Conditions" (lambda (button) (describe-copying)))
1345 "\tConditions for redistributing and changing Emacs\n"
1346 :link
("Getting New Versions" (lambda (button) (describe-distribution)))
1347 "\tHow to obtain the latest version of Emacs\n"
1348 :link
("Ordering Manuals" (lambda (button) (view-order-manuals)))
1349 "\tBuying printed manuals from the FSF\n"
1351 :link
("Emacs Tutorial" (lambda (button) (help-with-tutorial)))
1352 "\tLearn basic Emacs keystroke commands"
1354 (let* ((en "TUTORIAL")
1355 (tut (or (get-language-info current-language-environment
1358 (title (with-temp-buffer
1359 (insert-file-contents
1360 (expand-file-name tut tutorial-directory
)
1362 (search-forward ".")
1363 (buffer-substring (point-min) (1- (point))))))
1364 ;; If there is a specific tutorial for the current language
1365 ;; environment and it is not English, append its title.
1366 (if (string= en tut
)
1368 (concat " (" title
")"))))
1370 :link
("Emacs Guided Tour"
1371 (lambda (button) (browse-url "http://www.gnu.org/software/emacs/tour/"))
1372 "Browse http://www.gnu.org/software/emacs/tour/")
1373 "\tSee an overview of the many facilities of GNU Emacs"
1375 "A list of texts to show in the middle part of the About screen.
1376 Each element in the list should be a list of strings or pairs
1377 `:face FACE', like `fancy-splash-insert' accepts them.")
1380 (defgroup fancy-splash-screen
()
1381 "Fancy splash screen when Emacs starts."
1383 :group
'initialization
)
1385 (defcustom fancy-splash-image nil
1386 "*The image to show in the splash screens, or nil for defaults."
1387 :group
'fancy-splash-screen
1388 :type
'(choice (const :tag
"Default" nil
)
1389 (file :tag
"File")))
1392 (defvar splash-screen-keymap
1393 (let ((map (make-sparse-keymap)))
1394 (suppress-keymap map
)
1395 (set-keymap-parent map button-buffer-map
)
1396 (define-key map
"\C-?" 'scroll-down
)
1397 (define-key map
" " 'scroll-up
)
1398 (define-key map
"q" 'exit-splash-screen
)
1400 "Keymap for splash screen buffer.")
1402 ;; These are temporary storage areas for the splash screen display.
1404 (defun fancy-splash-insert (&rest args
)
1405 "Insert text into the current buffer, with faces.
1406 Arguments from ARGS should be either strings; functions called
1407 with no args that return a string; pairs `:face FACE', where FACE
1408 is a face specification usable with `put-text-property'; or pairs
1409 `:link LINK' where LINK is a list of arguments to pass to
1410 `insert-button', of the form (LABEL ACTION [HELP-ECHO]), which
1411 specifies the button's label, `action' property and help-echo string.
1412 FACE and LINK can also be functions, which are evaluated to obtain
1413 a face or button specification."
1414 (let ((current-face nil
))
1416 (cond ((eq (car args
) :face
)
1417 (setq args
(cdr args
) current-face
(car args
))
1418 (if (functionp current-face
)
1419 (setq current-face
(funcall current-face
))))
1420 ((eq (car args
) :link
)
1421 (setq args
(cdr args
))
1422 (let ((spec (car args
)))
1423 (if (functionp spec
)
1424 (setq spec
(funcall spec
)))
1425 (insert-button (car spec
)
1426 'face
(list 'link current-face
)
1428 'help-echo
(concat "mouse-2, RET: "
1430 "Follow this link"))
1432 (t (insert (propertize (let ((it (car args
)))
1437 'help-echo
(startup-echo-area-message)))))
1438 (setq args
(cdr args
)))))
1440 (declare-function image-size
"image.c" (spec &optional pixels frame
))
1442 (defun fancy-splash-head ()
1443 "Insert the head part of the splash screen into the current buffer."
1444 (let* ((image-file (cond ((stringp fancy-splash-image
)
1447 (cond ((<= (display-planes) 8)
1448 (if (image-type-available-p 'xpm
)
1451 ((image-type-available-p 'svg
)
1453 ((image-type-available-p 'png
)
1455 ((image-type-available-p 'xpm
)
1459 (img (create-image image-file
))
1460 (image-width (and img
(car (image-size img
))))
1461 (window-width (window-width (selected-window))))
1463 (when (> window-width image-width
)
1464 ;; Center the image in the window.
1465 (insert (propertize " " 'display
1466 `(space :align-to
(+ center
(-0.5 .
,img
)))))
1468 ;; Change the color of the XPM version of the splash image
1469 ;; so that it is visible with a dark frame background.
1470 (when (and (memq 'xpm img
)
1471 (eq (frame-parameter nil
'background-mode
) 'dark
))
1472 (setq img
(append img
'(:color-symbols
(("#000000" .
"gray30"))))))
1474 ;; Insert the image with a help-echo and a link.
1475 (make-button (prog1 (point) (insert-image img
)) (point)
1477 'help-echo
"mouse-2, RET: Browse http://www.gnu.org/"
1478 'action
(lambda (button) (browse-url "http://www.gnu.org/"))
1482 (defun fancy-startup-tail (&optional concise
)
1483 "Insert the tail part of the splash screen into the current buffer."
1484 (let ((fg (if (eq (frame-parameter nil
'background-mode
) 'dark
)
1485 "cyan" "darkblue")))
1487 (fancy-splash-insert
1488 :face
'variable-pitch
1490 :link
'("Open a File"
1491 (lambda (button) (call-interactively 'find-file
))
1492 "Specify a new file's name, to edit the file")
1494 :link
'("Open Home Directory"
1495 (lambda (button) (dired "~"))
1496 "Open your home directory, to operate on its files")
1498 :link
'("Customize Startup"
1499 (lambda (button) (customize-group 'initialization
))
1500 "Change initialization settings including this screen")
1502 (fancy-splash-insert
1503 :face
'variable-pitch
"To quit a partially entered command, type "
1504 :face
'default
"Control-g"
1505 :face
'variable-pitch
".\n")
1506 (fancy-splash-insert :face
`(variable-pitch (:foreground
,fg
))
1510 :face
'(variable-pitch (:height
0.8))
1513 (and auto-save-list-file-prefix
1514 ;; Don't signal an error if the
1515 ;; directory for auto-save-list files
1516 ;; does not yet exist.
1517 (file-directory-p (file-name-directory
1518 auto-save-list-file-prefix
))
1520 (file-name-directory auto-save-list-file-prefix
)
1523 (regexp-quote (file-name-nondirectory
1524 auto-save-list-file-prefix
)))
1526 (fancy-splash-insert :face
'(variable-pitch (:foreground
"red"))
1527 "\nIf an Emacs session crashed recently, "
1529 :face
'(fixed-pitch :foreground
"red")
1530 "Meta-x recover-session RET"
1531 :face
'(variable-pitch (:foreground
"red"))
1533 " the files you were editing."))
1536 (fancy-splash-insert
1537 :face
'variable-pitch
"\n"
1538 :link
'("Dismiss this startup screen"
1540 (when startup-screen-inhibit-startup-screen
1541 (customize-set-variable 'inhibit-startup-screen t
)
1542 (customize-mark-to-save 'inhibit-startup-screen
)
1544 (let ((w (get-buffer-window "*GNU Emacs*")))
1545 (and w
(not (one-window-p)) (delete-window w
)))
1546 (kill-buffer "*GNU Emacs*")))
1548 (when (or user-init-file custom-file
)
1549 (let ((checked (create-image "\300\300\141\143\067\076\034\030"
1550 'xbm t
:width
8 :height
8 :background
"grey75"
1551 :foreground
"black" :relief -
2 :ascent
'center
))
1552 (unchecked (create-image (make-string 8 0)
1553 'xbm t
:width
8 :height
8 :background
"grey75"
1554 :foreground
"black" :relief -
2 :ascent
'center
)))
1556 " " :on-glyph checked
:off-glyph unchecked
'checked nil
1557 'display unchecked
'follow-link t
1558 'action
(lambda (button)
1559 (if (overlay-get button
'checked
)
1560 (progn (overlay-put button
'checked nil
)
1561 (overlay-put button
'display
(overlay-get button
:off-glyph
))
1562 (setq startup-screen-inhibit-startup-screen nil
))
1563 (overlay-put button
'checked t
)
1564 (overlay-put button
'display
(overlay-get button
:on-glyph
))
1565 (setq startup-screen-inhibit-startup-screen t
)))))
1566 (fancy-splash-insert :face
'(variable-pitch (:height
0.9))
1567 " Never show it again.")))))
1569 (defun exit-splash-screen ()
1570 "Stop displaying the splash screen buffer."
1574 (defun fancy-startup-screen (&optional concise
)
1575 "Display fancy startup screen.
1576 If CONCISE is non-nil, display a concise version of the
1577 splash screen in another window."
1578 (let ((splash-buffer (get-buffer-create "*GNU Emacs*")))
1579 (with-current-buffer splash-buffer
1580 (let ((inhibit-read-only t
))
1582 (setq default-directory command-line-default-directory
)
1583 (make-local-variable 'startup-screen-inhibit-startup-screen
)
1584 (if pure-space-overflow
1585 (insert pure-space-overflow-message
))
1587 (fancy-splash-head))
1588 (dolist (text fancy-startup-text
)
1589 (apply #'fancy-splash-insert text
)
1591 (skip-chars-backward "\n")
1592 (delete-region (point) (point-max))
1594 (fancy-startup-tail concise
))
1595 (use-local-map splash-screen-keymap
)
1598 (set-buffer-modified-p nil
)
1599 (if (and view-read-only
(not view-mode
))
1600 (view-mode-enter nil
'kill-buffer
))
1601 (goto-char (point-min))
1602 (forward-line (if concise
2 4)))
1605 (display-buffer splash-buffer
)
1606 ;; If the splash screen is in a split window, fit it.
1607 (let ((window (get-buffer-window splash-buffer t
)))
1609 (eq window
(selected-window))
1610 (eq window
(next-window window
))
1611 (fit-window-to-buffer window
))))
1612 (switch-to-buffer splash-buffer
))))
1614 (defun fancy-about-screen ()
1615 "Display fancy About screen."
1616 (let ((frame (fancy-splash-frame)))
1617 (save-selected-window
1618 (select-frame frame
)
1619 (switch-to-buffer "*About GNU Emacs*")
1620 (setq buffer-undo-list t
1621 mode-line-format
(propertize "---- %b %-"
1622 'face
'mode-line-buffer-id
))
1623 (let ((inhibit-read-only t
))
1625 (if pure-space-overflow
1626 (insert pure-space-overflow-message
))
1628 (dolist (text fancy-about-text
)
1629 (apply #'fancy-splash-insert text
)
1631 (set-buffer-modified-p nil
)
1632 (goto-char (point-min))
1633 (force-mode-line-update))
1634 (use-local-map splash-screen-keymap
)
1636 (message "%s" (startup-echo-area-message))
1637 (setq buffer-read-only t
)
1638 (goto-char (point-min))
1641 (defun fancy-splash-frame ()
1642 "Return the frame to use for the fancy splash screen.
1643 Returning non-nil does not mean we should necessarily
1644 use the fancy splash screen, but if we do use it,
1645 we put it on this frame."
1647 (dolist (frame (append (frame-list) (list (selected-frame))))
1648 (if (and (frame-visible-p frame
)
1649 (not (window-minibuffer-p (frame-selected-window frame
))))
1650 (setq chosen-frame frame
)))
1653 (defun use-fancy-splash-screens-p ()
1654 "Return t if fancy splash screens should be used."
1655 (when (and (display-graphic-p)
1656 (or (and (display-color-p)
1657 (image-type-available-p 'xpm
))
1658 (image-type-available-p 'pbm
)))
1659 (let ((frame (fancy-splash-frame)))
1661 (let* ((img (create-image (or fancy-splash-image
1662 (if (and (display-color-p)
1663 (image-type-available-p 'xpm
))
1664 "splash.xpm" "splash.pbm"))))
1665 (image-height (and img
(cdr (image-size img nil frame
))))
1666 ;; We test frame-height so that, if the frame is split
1667 ;; by displaying a warning, that doesn't cause the normal
1668 ;; splash screen to be used.
1669 (frame-height (1- (frame-height frame
))))
1670 (> frame-height
(+ image-height
19)))))))
1673 (defun normal-splash-screen (&optional startup concise
)
1674 "Display non-graphic splash screen.
1675 If optional argument STARTUP is non-nil, display the startup screen
1676 after Emacs starts. If STARTUP is nil, display the About screen.
1677 If CONCISE is non-nil, display a concise version of the
1678 splash screen in another window."
1679 (let ((splash-buffer (get-buffer-create "*About GNU Emacs*")))
1680 (with-current-buffer splash-buffer
1681 (setq buffer-read-only nil
)
1683 (setq default-directory command-line-default-directory
)
1684 (set (make-local-variable 'tab-width
) 8)
1686 (set (make-local-variable 'mode-line-format
)
1687 (propertize "---- %b %-" 'face
'mode-line-buffer-id
)))
1689 (if pure-space-overflow
1690 (insert pure-space-overflow-message
))
1692 ;; The convention for this piece of code is that
1693 ;; each piece of output starts with one or two newlines
1694 ;; and does not end with any newlines.
1695 (insert (if startup
"Welcome to GNU Emacs" "This is GNU Emacs"))
1697 (if (eq system-type
'gnu
/linux
)
1698 ", one component of the GNU/Linux operating system.\n"
1699 ", a part of the GNU operating system.\n"))
1702 (if (display-mouse-p)
1703 ;; The user can use the mouse to activate menus
1704 ;; so give help in terms of menu items.
1705 (normal-mouse-startup-screen)
1707 ;; No mouse menus, so give help using kbd commands.
1708 (normal-no-mouse-startup-screen))
1710 (normal-about-screen))
1712 ;; The rest of the startup screen is the same on all
1713 ;; kinds of terminals.
1715 ;; Give information on recovering, if there was a crash.
1717 auto-save-list-file-prefix
1718 ;; Don't signal an error if the
1719 ;; directory for auto-save-list files
1720 ;; does not yet exist.
1721 (file-directory-p (file-name-directory
1722 auto-save-list-file-prefix
))
1724 (file-name-directory auto-save-list-file-prefix
)
1727 (regexp-quote (file-name-nondirectory
1728 auto-save-list-file-prefix
)))
1730 (insert "\n\nIf an Emacs session crashed recently, "
1731 "type Meta-x recover-session RET\nto recover"
1732 " the files you were editing.\n"))
1734 (use-local-map splash-screen-keymap
)
1736 ;; Display the input that we set up in the buffer.
1737 (set-buffer-modified-p nil
)
1738 (setq buffer-read-only t
)
1739 (if (and view-read-only
(not view-mode
))
1740 (view-mode-enter nil
'kill-buffer
))
1741 (if startup
(rename-buffer "*GNU Emacs*" t
))
1742 (goto-char (point-min)))
1744 (display-buffer splash-buffer
)
1745 (switch-to-buffer splash-buffer
))))
1747 (defun normal-mouse-startup-screen ()
1748 ;; The user can use the mouse to activate menus
1749 ;; so give help in terms of menu items.
1751 To follow a link, click Mouse-1 on it, or move to it and type RET.
1752 To quit a partially entered command, type Control-g.\n")
1754 (insert "\nImportant Help menu items:\n")
1755 (insert-button "Emacs Tutorial"
1756 'action
(lambda (button) (help-with-tutorial))
1758 (insert "\t\tLearn basic Emacs keystroke commands\n")
1759 (insert-button "Read the Emacs Manual"
1760 'action
(lambda (button) (info-emacs-manual))
1762 (insert "\tView the Emacs manual using Info\n")
1763 (insert-button "\(Non)Warranty"
1764 'action
(lambda (button) (describe-no-warranty))
1766 (insert "\t\tGNU Emacs comes with ABSOLUTELY NO WARRANTY\n")
1767 (insert-button "Copying Conditions"
1768 'action
(lambda (button) (describe-copying))
1770 (insert "\tConditions for redistributing and changing Emacs\n")
1771 (insert-button "More Manuals / Ordering Manuals"
1772 'action
(lambda (button) (view-order-manuals))
1774 (insert " How to order printed manuals from the FSF\n")
1776 (insert "\nUseful tasks:\n")
1777 (insert-button "Visit New File"
1778 'action
(lambda (button) (call-interactively 'find-file
))
1780 (insert "\t\tSpecify a new file's name, to edit the file\n")
1781 (insert-button "Open Home Directory"
1782 'action
(lambda (button) (dired "~"))
1784 (insert "\tOpen your home directory, to operate on its files\n")
1785 (insert-button "Customize Startup"
1786 'action
(lambda (button) (customize-group 'initialization
))
1788 (insert "\tChange initialization settings including this screen\n")
1790 (insert "\n" (emacs-version)
1791 "\n" emacs-copyright
))
1793 ;; No mouse menus, so give help using kbd commands.
1794 (defun normal-no-mouse-startup-screen ()
1796 ;; If keys have their default meanings,
1797 ;; use precomputed string to save lots of time.
1798 (if (and (eq (key-binding "\C-h") 'help-command
)
1799 (eq (key-binding "\C-xu") 'advertised-undo
)
1800 (eq (key-binding "\C-x\C-c") 'save-buffers-kill-terminal
)
1801 (eq (key-binding "\C-ht") 'help-with-tutorial
)
1802 (eq (key-binding "\C-hi") 'info
)
1803 (eq (key-binding "\C-hr") 'info-emacs-manual
)
1804 (eq (key-binding "\C-h\C-n") 'view-emacs-news
))
1807 Get help\t C-h (Hold down CTRL and press h)
1809 (insert-button "Emacs manual"
1810 'action
(lambda (button) (info-emacs-manual))
1813 (insert-button "Browse manuals"
1814 'action
(lambda (button) (Info-directory))
1818 (insert-button "Emacs tutorial"
1819 'action
(lambda (button) (help-with-tutorial))
1821 (insert " C-h t\tUndo changes\t C-x u
1823 (insert-button "Buy manuals"
1824 'action
(lambda (button) (view-order-manuals))
1826 (insert "\t C-h C-m\tExit Emacs\t C-x C-c"))
1831 (let ((where (where-is-internal
1832 'help-command nil t
)))
1834 (key-description where
)
1836 (insert-button "Emacs manual"
1837 'action
(lambda (button) (info-emacs-manual))
1839 (insert (substitute-command-keys"\t \\[info-emacs-manual]\t"))
1840 (insert-button "Browse manuals"
1841 'action
(lambda (button) (Info-directory))
1843 (insert (substitute-command-keys "\t \\[info]
1845 (insert-button "Emacs tutorial"
1846 'action
(lambda (button) (help-with-tutorial))
1848 (insert (substitute-command-keys
1849 "\t \\[help-with-tutorial]\tUndo changes\t \\[advertised-undo]
1851 (insert-button "Buy manuals"
1852 'action
(lambda (button) (view-order-manuals))
1854 (insert (substitute-command-keys
1855 "\t \\[view-order-manuals]\tExit Emacs\t \\[save-buffers-kill-terminal]")))
1857 ;; Say how to use the menu bar with the keyboard.
1859 (insert-button "Activate menubar"
1860 'action
(lambda (button) (tmm-menubar))
1862 (if (and (eq (key-binding "\M-`") 'tmm-menubar
)
1863 (eq (key-binding [f10]) 'tmm-menubar))
1864 (insert " F10 or ESC ` or M-`")
1865 (insert (substitute-command-keys " \\[tmm-menubar]")))
1867 ;; Many users seem to have problems with these.
1869 \(`C-' means use the CTRL key. `M-' means use the Meta (or Alt) key.
1870 If you have no Meta key, you may instead type ESC followed by the character.)")
1872 ;; Insert links to useful tasks
1873 (insert "\nUseful tasks:\n")
1875 (insert-button "Visit New File"
1876 'action (lambda (button) (call-interactively 'find-file))
1879 (insert-button "Open Home Directory"
1880 'action (lambda (button) (dired "~"))
1884 (insert-button "Customize Startup"
1885 'action (lambda (button) (customize-group 'initialization))
1888 (insert-button "Open *scratch* buffer"
1889 'action (lambda (button) (switch-to-buffer
1890 (get-buffer-create "*scratch*")))
1893 (insert "\n" (emacs-version) "\n" emacs-copyright "\n")
1895 (if (and (eq (key-binding "\C-h\C-c") 'describe-copying)
1896 (eq (key-binding "\C-h\C-d") 'describe-distribution)
1897 (eq (key-binding "\C-h\C-w") 'describe-no-warranty))
1901 GNU Emacs comes with ABSOLUTELY NO WARRANTY; type C-h C-w for ")
1902 (insert-button "full details"
1903 'action (lambda (button) (describe-no-warranty))
1906 Emacs is Free Software--Free as in Freedom--so you can redistribute copies
1907 of Emacs and modify it; type C-h C-c to see ")
1908 (insert-button "the conditions"
1909 'action (lambda (button) (describe-copying))
1912 Type C-h C-d for information on ")
1913 (insert-button "getting the latest version"
1914 'action (lambda (button) (describe-distribution))
1917 (insert (substitute-command-keys
1919 GNU Emacs comes with ABSOLUTELY NO WARRANTY; type \\[describe-no-warranty] for "))
1920 (insert-button "full details"
1921 'action (lambda (button) (describe-no-warranty))
1923 (insert (substitute-command-keys ".
1924 Emacs is Free Software--Free as in Freedom--so you can redistribute copies
1925 of Emacs and modify it; type \\[describe-copying] to see "))
1926 (insert-button "the conditions"
1927 'action (lambda (button) (describe-copying))
1929 (insert (substitute-command-keys".
1930 Type \\[describe-distribution] for information on "))
1931 (insert-button "getting the latest version"
1932 'action (lambda (button) (describe-distribution))
1936 (defun normal-about-screen ()
1937 (insert "\n" (emacs-version) "\n" emacs-copyright "\n\n")
1939 (insert "To follow a link, click Mouse-1 on it, or move to it and type RET.\n\n")
1941 (insert-button "Authors"
1944 (view-file (expand-file-name "AUTHORS" data-directory))
1945 (goto-char (point-min)))
1947 (insert "\t\tMany people have contributed code included in GNU Emacs\n")
1949 (insert-button "Contributing"
1952 (view-file (expand-file-name "CONTRIBUTE" data-directory))
1953 (goto-char (point-min)))
1955 (insert "\tHow to contribute improvements to Emacs\n\n")
1957 (insert-button "GNU and Freedom"
1958 'action (lambda (button) (describe-gnu-project))
1960 (insert "\t\tWhy we developed GNU Emacs and the GNU system\n")
1962 (insert-button "Absence of Warranty"
1963 'action (lambda (button) (describe-no-warranty))
1965 (insert "\tGNU Emacs comes with ABSOLUTELY NO WARRANTY\n")
1967 (insert-button "Copying Conditions"
1968 'action (lambda (button) (describe-copying))
1970 (insert "\tConditions for redistributing and changing Emacs\n")
1972 (insert-button "Getting New Versions"
1973 'action (lambda (button) (describe-distribution))
1975 (insert "\tHow to get the latest version of GNU Emacs\n")
1977 (insert-button "More Manuals / Ordering Manuals"
1978 'action (lambda (button) (view-order-manuals))
1980 (insert "\tBuying printed manuals from the FSF\n"))
1982 (defun startup-echo-area-message ()
1983 (if (eq (key-binding "\C-h\C-a") 'about-emacs)
1984 "For information about GNU Emacs and the GNU system, type C-h C-a."
1985 (substitute-command-keys
1986 "For information about GNU Emacs and the GNU system, type \
1987 \\[about-emacs].")))
1990 (defun display-startup-echo-area-message ()
1991 (let ((resize-mini-windows t))
1992 (or noninteractive ;(input-pending-p) init-file-had-error
1993 ;; t if the init file says to inhibit the echo area startup message.
1994 (and inhibit-startup-echo-area-message
1996 (or (and (get 'inhibit-startup-echo-area-message 'saved-value)
1997 (equal inhibit-startup-echo-area-message
1998 (if (equal init-file-user "")
2001 ;; Wasn't set with custom; see if .emacs has a setq.
2002 (let ((buffer (get-buffer-create " *temp*")))
2007 (insert-file-contents user-init-file)
2010 "([ \t\n]*setq[ \t\n]+"
2011 "inhibit-startup-echo-area-message[ \t\n]+"
2014 (if (equal init-file-user "")
2020 (kill-buffer buffer)))))
2021 (message "%s" (startup-echo-area-message)))))
2023 (defun display-startup-screen (&optional concise)
2024 "Display startup screen according to display.
2025 A fancy display is used on graphic displays, normal otherwise.
2027 If CONCISE is non-nil, display a concise version of the startup
2029 ;; Prevent recursive calls from server-process-filter.
2030 (if (not (get-buffer "*GNU Emacs*"))
2031 (if (use-fancy-splash-screens-p)
2032 (fancy-startup-screen concise)
2033 (normal-splash-screen t concise))))
2035 (defun display-about-screen ()
2036 "Display the *About GNU Emacs* buffer.
2037 A fancy display is used on graphic displays, normal otherwise."
2039 (if (use-fancy-splash-screens-p)
2040 (fancy-about-screen)
2041 (normal-splash-screen nil)))
2043 (defalias 'about-emacs 'display-about-screen)
2044 (defalias 'display-splash-screen 'display-startup-screen)
2046 (defun command-line-1 (command-line-args-left)
2047 (display-startup-echo-area-message)
2048 (when (and pure-space-overflow
2049 (not noninteractive))
2052 "Building Emacs overflowed pure space.\
2053 (See the node Pure Storage in the Lisp manual for details.)"
2056 (let ((file-count 0)
2058 (when command-line-args-left
2059 ;; We have command args; process them.
2060 (let ((dir command-line-default-directory)
2062 ;; This approach loses for "-batch -L DIR --eval "(require foo)",
2063 ;; if foo is intended to be found in DIR.
2065 ;; ;; The directories listed in --directory/-L options will *appear*
2066 ;; ;; at the front of `load-path' in the order they appear on the
2067 ;; ;; command-line. We cannot do this by *placing* them at the front
2068 ;; ;; in the order they appear, so we need this variable to hold them,
2072 ;; To DTRT we keep track of the splice point and modify `load-path'
2073 ;; straight away upon any --directory/-L option.
2075 just-files ;; t if this follows the magic -- option.
2076 ;; This includes our standard options' long versions
2077 ;; and long versions of what's on command-switch-alist.
2079 (append '(("--funcall") ("--load") ("--insert") ("--kill")
2080 ("--directory") ("--eval") ("--execute") ("--no-splash")
2081 ("--find-file") ("--visit") ("--file") ("--no-desktop"))
2082 (mapcar (lambda (elt)
2083 (list (concat "-" (car elt))))
2084 command-switch-alist)))
2088 ;; Add the long X options to longopts.
2089 (dolist (tem command-line-x-option-alist)
2090 (if (string-match "^--" (car tem))
2091 (push (list (car tem)) longopts)))
2093 ;; Add the long NS options to longopts.
2094 (dolist (tem command-line-ns-option-alist)
2095 (if (string-match "^--" (car tem))
2096 (push (list (car tem)) longopts)))
2098 ;; Loop, processing options.
2099 (while command-line-args-left
2100 (let* ((argi (car command-line-args-left))
2103 (setq command-line-args-left (cdr command-line-args-left))
2105 ;; Do preliminary decoding of the option.
2107 ;; After --, don't look for options; treat all args as files.
2109 ;; Convert long options to ordinary options
2110 ;; and separate out an attached option argument into argval.
2111 (when (string-match "^\\(--[^=]*\\)=" argi)
2112 (setq argval (substring argi (match-end 0))
2113 argi (match-string 1 argi)))
2114 (if (equal argi "--")
2115 (setq completion nil)
2116 (setq completion (try-completion argi longopts)))
2117 (if (eq completion t)
2118 (setq argi (substring argi 1))
2119 (if (stringp completion)
2120 (let ((elt (assoc completion longopts)))
2122 (error "Option `%s' is ambiguous" argi))
2123 (setq argi (substring (car elt) 1)))
2127 ;; Execute the option.
2128 (cond ((setq tem (assoc argi command-switch-alist))
2130 (let ((command-line-args-left
2131 (cons argval command-line-args-left)))
2132 (funcall (cdr tem) argi))
2133 (funcall (cdr tem) argi)))
2135 ((equal argi "-no-splash")
2136 (setq inhibit-startup-screen t))
2138 ((member argi '("-f" ; what the manual claims
2140 "-e")) ; what the source used to say
2141 (setq inhibit-startup-screen t)
2142 (setq tem (intern (or argval (pop command-line-args-left))))
2144 (command-execute tem)
2147 ((member argi '("-eval" "-execute"))
2148 (setq inhibit-startup-screen t)
2149 (eval (read (or argval (pop command-line-args-left)))))
2151 ((member argi '("-L" "-directory"))
2152 (setq tem (expand-file-name
2153 (command-line-normalize-file-name
2154 (or argval (pop command-line-args-left)))))
2155 (cond (splice (setcdr splice (cons tem (cdr splice)))
2156 (setq splice (cdr splice)))
2157 (t (setq load-path (cons tem load-path)
2158 splice load-path))))
2160 ((member argi '("-l" "-load"))
2161 (let* ((file (command-line-normalize-file-name
2162 (or argval (pop command-line-args-left))))
2163 ;; Take file from default dir if it exists there;
2164 ;; otherwise let `load' search for it.
2165 (file-ex (expand-file-name file)))
2166 (when (file-exists-p file-ex)
2167 (setq file file-ex))
2170 ;; This is used to handle -script. It's not clear
2171 ;; we need to document it (it is totally internal).
2172 ((member argi '("-scriptload"))
2173 (let* ((file (command-line-normalize-file-name
2174 (or argval (pop command-line-args-left))))
2175 ;; Take file from default dir.
2176 (file-ex (expand-file-name file)))
2177 (load file-ex nil t t)))
2179 ((equal argi "-insert")
2180 (setq inhibit-startup-screen t)
2181 (setq tem (or argval (pop command-line-args-left)))
2183 (error "File name omitted from `-insert' option"))
2184 (insert-file-contents (command-line-normalize-file-name tem)))
2186 ((equal argi "-kill")
2189 ;; This is for when they use --no-desktop with -q, or
2190 ;; don't load Desktop in their .emacs. If desktop.el
2191 ;; _is_ loaded, it will handle this switch, and we
2192 ;; won't see it by the time we get here.
2193 ((equal argi "-no-desktop")
2194 (message "\"--no-desktop\" ignored because the Desktop package is not loaded"))
2196 ((string-match "^\\+[0-9]+\\'" argi)
2197 (setq line (string-to-number argi)))
2199 ((string-match "^\\+\\([0-9]+\\):\\([0-9]+\\)\\'" argi)
2200 (setq line (string-to-number (match-string 1 argi))
2201 column (string-to-number (match-string 2 argi))))
2203 ((setq tem (assoc argi command-line-x-option-alist))
2204 ;; Ignore X-windows options and their args if not using X.
2205 (setq command-line-args-left
2206 (nthcdr (nth 1 tem) command-line-args-left)))
2208 ((setq tem (assoc argi command-line-ns-option-alist))
2209 ;; Ignore NS-windows options and their args if not using NS.
2210 (setq command-line-args-left
2211 (nthcdr (nth 1 tem) command-line-args-left)))
2213 ((member argi '("-find-file" "-file" "-visit"))
2214 (setq inhibit-startup-screen t)
2215 ;; An explicit option to specify visiting a file.
2216 (setq tem (or argval (pop command-line-args-left)))
2217 (unless (stringp tem)
2218 (error "File name omitted from `%s' option" argi))
2219 (setq file-count (1+ file-count))
2220 (let ((file (expand-file-name
2221 (command-line-normalize-file-name tem) dir)))
2222 (if (= file-count 1)
2223 (setq first-file-buffer (find-file file))
2224 (find-file-other-window file)))
2228 (unless (< column 1)
2229 (move-to-column (1- column)))
2233 (setq just-files t))
2235 ;; We have almost exhausted our options. See if the
2236 ;; user has made any other command-line options available
2237 (let ((hooks command-line-functions)
2240 (not (setq did-hook (funcall (car hooks)))))
2241 (setq hooks (cdr hooks)))
2243 ;; Presume that the argument is a file name.
2245 (if (string-match "\\`-" argi)
2246 (error "Unknown option `%s'" argi))
2247 (unless initial-window-system
2248 (setq inhibit-startup-screen t))
2249 (setq file-count (1+ file-count))
2252 (command-line-normalize-file-name orig-argi)
2254 (cond ((= file-count 1)
2255 (setq first-file-buffer (find-file file)))
2256 (inhibit-startup-screen
2257 (find-file-other-window file))
2258 (t (find-file file))))
2262 (unless (< column 1)
2263 (move-to-column (1- column)))
2264 (setq column 0))))))
2265 ;; In unusual circumstances, the execution of Lisp code due
2266 ;; to command-line options can cause the last visible frame
2267 ;; to be deleted. In this case, kill emacs to avoid an
2269 (unless (frame-live-p (selected-frame)) (kill-emacs nil))))))
2271 (when initial-buffer-choice
2272 (cond ((eq initial-buffer-choice t)
2273 (switch-to-buffer (get-buffer-create "*scratch*")))
2274 ((stringp initial-buffer-choice)
2275 (find-file initial-buffer-choice))))
2277 ;; If *scratch* exists and is empty, insert initial-scratch-message.
2278 (and initial-scratch-message
2279 (get-buffer "*scratch*")
2280 (with-current-buffer "*scratch*"
2281 (when (zerop (buffer-size))
2282 (insert initial-scratch-message)
2283 (set-buffer-modified-p nil))))
2285 (if (or inhibit-startup-screen
2286 initial-buffer-choice
2288 emacs-quick-startup)
2290 ;; Not displaying a startup screen. If 3 or more files
2291 ;; visited, and not all visible, show user what they all are.
2292 (and (> file-count 2)
2293 (not noninteractive)
2294 (not inhibit-startup-buffer-menu)
2295 (or (get-buffer-window first-file-buffer)
2298 ;; Display a startup screen, after some preparations.
2300 ;; If there are no switches to process, we might as well
2301 ;; run this hook now, and there may be some need to do it
2302 ;; before doing any output.
2303 (run-hooks 'emacs-startup-hook)
2304 (and term-setup-hook
2305 (run-hooks 'term-setup-hook))
2306 (setq inhibit-startup-hooks t)
2308 ;; It's important to notice the user settings before we
2309 ;; display the startup message; otherwise, the settings
2310 ;; won't take effect until the user gives the first
2311 ;; keystroke, and that's distracting.
2312 (when (fboundp 'frame-notice-user-settings)
2313 (frame-notice-user-settings))
2315 ;; If there are no switches to process, we might as well
2316 ;; run this hook now, and there may be some need to do it
2317 ;; before doing any output.
2318 (when window-setup-hook
2319 (run-hooks 'window-setup-hook)
2320 ;; Don't let the hook be run twice.
2321 (setq window-setup-hook nil))
2323 ;; ;; Do this now to avoid an annoying delay if the user
2324 ;; ;; clicks the menu bar during the sit-for.
2325 ;; (when (display-popup-menus-p)
2326 ;; (precompute-menubar-bindings))
2327 ;; (with-no-warnings
2328 ;; (setq menubar-bindings-done t))
2330 (if (> file-count 0)
2331 (display-startup-screen t)
2332 (display-startup-screen nil)))))
2334 (defun command-line-normalize-file-name (file)
2335 "Collapse multiple slashes to one, to handle non-Emacs file names."
2337 ;; Use arg 1 so that we don't collapse // at the start of the file name.
2338 ;; That is significant on some systems.
2339 ;; However, /// at the beginning is supposed to mean just /, not //.
2340 (if (string-match "^///+" file)
2341 (setq file (replace-match "/" t t file)))
2342 (while (string-match "//+" file 1)
2343 (setq file (replace-match "/" t t file)))
2346 ;; arch-tag: 7e294698-244d-4758-984b-4047f887a5db
2347 ;;; startup.el ends here