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, or (at your option)
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; see the file COPYING. If not, write to the
24 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
25 ;; Boston, MA 02110-1301, USA.
29 ;; This file parses the command line and gets Emacs running. Options
30 ;; on the command line are handled in precedence order. For priorities
31 ;; see the structure standard_args in the emacs.c file.
35 (setq top-level
'(normal-top-level))
37 (defvar command-line-processed nil
38 "Non-nil once command line has been processed.")
40 (defgroup initialization nil
41 "Emacs start-up procedure."
44 (defcustom initial-buffer-choice nil
45 "Buffer to show after starting Emacs.
46 If the value is nil and `inhibit-startup-screen' is nil, show the
47 startup screen. If the value is string, visit the specified file or
48 directory using `find-file'. If t, open the `*scratch*' buffer."
50 (const :tag
"Startup screen" nil
)
51 (directory :tag
"Directory" :value
"~/")
52 (file :tag
"File" :value
"~/file.txt")
53 (const :tag
"Lisp scratch buffer" t
))
55 :group
'initialization
)
57 (defcustom inhibit-startup-screen nil
58 "Non-nil inhibits the startup screen.
59 It also inhibits display of the initial message in the `*scratch*' buffer.
61 This is for use in your personal init file (but NOT site-start.el), once
62 you are familiar with the contents of the startup screen."
64 :group
'initialization
)
66 (defvaralias 'inhibit-splash-screen
'inhibit-startup-screen
)
67 (defvaralias 'inhibit-startup-message
'inhibit-startup-screen
)
69 (defvar startup-screen-inhibit-startup-screen nil
)
71 (defcustom inhibit-startup-echo-area-message nil
72 "*Non-nil inhibits the initial startup echo area message.
73 Setting this variable takes effect
74 only if you do it with the customization buffer
75 or if your `.emacs' file contains a line of this form:
76 (setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\")
77 If your `.emacs' file is byte-compiled, use the following form instead:
78 (eval '(setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\"))
79 Thus, someone else using a copy of your `.emacs' file will see
80 the startup message unless he personally acts to inhibit it."
81 :type
'(choice (const :tag
"Don't inhibit")
82 (string :tag
"Enter your user name, to inhibit"))
83 :group
'initialization
)
85 (defcustom inhibit-default-init nil
86 "*Non-nil inhibits loading the `default' library."
88 :group
'initialization
)
90 (defcustom inhibit-startup-buffer-menu nil
91 "*Non-nil inhibits display of buffer list when more than 2 files are loaded."
93 :group
'initialization
)
95 (defvar command-switch-alist nil
96 "Alist of command-line switches.
97 Elements look like (SWITCH-STRING . HANDLER-FUNCTION).
98 HANDLER-FUNCTION receives the switch string as its sole argument;
99 the remaining command-line args are in the variable `command-line-args-left'.")
101 (defvar command-line-args-left nil
102 "List of command-line args not yet processed.")
104 (defvaralias 'argv
'command-line-args-left
105 "List of command-line args not yet processed.
106 This is a convenience alias, so that one can write \(pop argv\)
107 inside of --eval command line arguments in order to access
108 following arguments.")
110 (defvar command-line-functions nil
;; lrs 7/31/89
111 "List of functions to process unrecognized command-line arguments.
112 Each function should access the dynamically bound variables
113 `argi' (the current argument) and `command-line-args-left' (the remaining
114 arguments). The function should return non-nil only if it recognizes and
115 processes `argi'. If it does so, it may consume successive arguments by
116 altering `command-line-args-left' to remove them.")
118 (defvar command-line-default-directory nil
119 "Default directory to use for command line arguments.
120 This is normally copied from `default-directory' when Emacs starts.")
122 ;;; This is here, rather than in x-win.el, so that we can ignore these
123 ;;; options when we are not using X.
124 (defconst command-line-x-option-alist
125 '(("-bw" 1 x-handle-numeric-switch border-width
)
126 ("-d" 1 x-handle-display
)
127 ("-display" 1 x-handle-display
)
128 ("-name" 1 x-handle-name-switch
)
129 ("-title" 1 x-handle-switch title
)
130 ("-T" 1 x-handle-switch title
)
131 ("-r" 0 x-handle-switch reverse t
)
132 ("-rv" 0 x-handle-switch reverse t
)
133 ("-reverse" 0 x-handle-switch reverse t
)
134 ("-reverse-video" 0 x-handle-switch reverse t
)
135 ("-fn" 1 x-handle-switch font
)
136 ("-font" 1 x-handle-switch font
)
137 ("-fs" 0 x-handle-initial-switch fullscreen fullboth
)
138 ("-fw" 0 x-handle-initial-switch fullscreen fullwidth
)
139 ("-fh" 0 x-handle-initial-switch fullscreen fullheight
)
140 ("-ib" 1 x-handle-numeric-switch internal-border-width
)
141 ("-g" 1 x-handle-geometry
)
142 ("-lsp" 1 x-handle-numeric-switch line-spacing
)
143 ("-geometry" 1 x-handle-geometry
)
144 ("-fg" 1 x-handle-switch foreground-color
)
145 ("-foreground" 1 x-handle-switch foreground-color
)
146 ("-bg" 1 x-handle-switch background-color
)
147 ("-background" 1 x-handle-switch background-color
)
148 ("-ms" 1 x-handle-switch mouse-color
)
149 ("-nbi" 0 x-handle-switch icon-type nil
)
150 ("-iconic" 0 x-handle-iconic
)
151 ("-xrm" 1 x-handle-xrm-switch
)
152 ("-cr" 1 x-handle-switch cursor-color
)
153 ("-vb" 0 x-handle-switch vertical-scroll-bars t
)
154 ("-hb" 0 x-handle-switch horizontal-scroll-bars t
)
155 ("-bd" 1 x-handle-switch
)
156 ("--border-width" 1 x-handle-numeric-switch border-width
)
157 ("--display" 1 x-handle-display
)
158 ("--name" 1 x-handle-name-switch
)
159 ("--title" 1 x-handle-switch title
)
160 ("--reverse-video" 0 x-handle-switch reverse t
)
161 ("--font" 1 x-handle-switch font
)
162 ("--fullscreen" 0 x-handle-initial-switch fullscreen fullboth
)
163 ("--fullwidth" 0 x-handle-initial-switch fullscreen fullwidth
)
164 ("--fullheight" 0 x-handle-initial-switch fullscreen fullheight
)
165 ("--internal-border" 1 x-handle-numeric-switch internal-border-width
)
166 ("--geometry" 1 x-handle-geometry
)
167 ("--foreground-color" 1 x-handle-switch foreground-color
)
168 ("--background-color" 1 x-handle-switch background-color
)
169 ("--mouse-color" 1 x-handle-switch mouse-color
)
170 ("--no-bitmap-icon" 0 x-handle-no-bitmap-icon
)
171 ("--iconic" 0 x-handle-iconic
)
172 ("--xrm" 1 x-handle-xrm-switch
)
173 ("--cursor-color" 1 x-handle-switch cursor-color
)
174 ("--vertical-scroll-bars" 0 x-handle-switch vertical-scroll-bars t
)
175 ("--line-spacing" 1 x-handle-numeric-switch line-spacing
)
176 ("--border-color" 1 x-handle-switch border-color
)
177 ("--smid" 1 x-handle-smid
))
178 "Alist of X Windows options.
179 Each element has the form
180 (NAME NUMARGS HANDLER FRAME-PARAM VALUE)
181 where NAME is the option name string, NUMARGS is the number of arguments
182 that the option accepts, HANDLER is a function to call to handle the option.
183 FRAME-PARAM (optional) is the frame parameter this option specifies,
184 and VALUE is the value which is given to that frame parameter
185 \(most options use the argument for this, so VALUE is not present).")
187 (defvar before-init-hook nil
188 "Normal hook run after handling urgent options but before loading init files.")
190 (defvar after-init-hook nil
191 "Normal hook run after loading the init files, `~/.emacs' and `default.el'.
192 There is no `condition-case' around the running of these functions;
193 therefore, if you set `debug-on-error' non-nil in `.emacs',
194 an error in one of these functions will invoke the debugger.")
196 (defvar emacs-startup-hook nil
197 "Normal hook run after loading init files and handling the command line.")
199 (defvar term-setup-hook nil
200 "Normal hook run after loading terminal-specific Lisp code.
201 It also follows `emacs-startup-hook'. This hook exists for users to set,
202 so as to override the definitions made by the terminal-specific file.
203 Emacs never sets this variable itself.")
205 (defvar inhibit-startup-hooks nil
206 "Non-nil means don't run `term-setup-hook' and `emacs-startup-hook'.
207 This is because we already did so.")
209 (defvar keyboard-type nil
210 "The brand of keyboard you are using.
211 This variable is used to define the proper function and keypad
212 keys for use under X. It is used in a fashion analogous to the
213 environment variable TERM.")
215 (defvar window-setup-hook nil
216 "Normal hook run to initialize window system display.
217 Emacs runs this hook after processing the command line arguments and loading
218 the user's init file.")
220 (defcustom initial-major-mode
'lisp-interaction-mode
221 "Major mode command symbol to use for the initial `*scratch*' buffer."
223 :group
'initialization
)
225 (defvar init-file-user nil
226 "Identity of user whose `.emacs' file is or was read.
227 The value is nil if `-q' or `--no-init-file' was specified,
228 meaning do not load any init file.
230 Otherwise, the value may be an empty string, meaning
231 use the init file for the user who originally logged in,
232 or it may be a string containing a user's name meaning
233 use that person's init file.
235 In either of the latter cases, `(concat \"~\" init-file-user \"/\")'
236 evaluates to the name of the directory where the `.emacs' file was
239 Setting `init-file-user' does not prevent Emacs from loading
240 `site-start.el'. The only way to do that is to use `--no-site-file'.")
242 (defcustom site-run-file
"site-start"
243 "File containing site-wide run-time initializations.
244 This file is loaded at run-time before `~/.emacs'. It contains inits
245 that need to be in place for the entire site, but which, due to their
246 higher incidence of change, don't make sense to load into Emacs's
247 dumped image. Thus, the run-time load order is: 1. file described in
248 this variable, if non-nil; 2. `~/.emacs'; 3. `default.el'.
250 Don't use the `site-start.el' file for things some users may not like.
251 Put them in `default.el' instead, so that users can more easily
252 override them. Users can prevent loading `default.el' with the `-q'
253 option or by setting `inhibit-default-init' in their own init files,
254 but inhibiting `site-start.el' requires `--no-site-file', which
257 This variable is defined for customization so as to make
258 it visible in the relevant context. However, actually customizing it
259 is not allowed, since it would not work anyway. The only way to set
260 this variable usefully is to set it while building and dumping Emacs."
261 :type
'(choice (const :tag
"none" nil
) string
)
262 :group
'initialization
263 :initialize
'custom-initialize-default
264 :set
'(lambda (variable value
)
265 (error "Customizing `site-run-file' does not work")))
267 (defcustom mail-host-address nil
268 "*Name of this machine, for purposes of naming users."
269 :type
'(choice (const nil
) string
)
272 (defcustom user-mail-address
(if command-line-processed
274 (concat (user-login-name) "@"
275 (or mail-host-address
277 ;; Empty string means "not set yet".
279 "*Full mailing address of this user.
280 This is initialized with environment variable `EMAIL' or, as a
281 fallback, using `mail-host-address'. This is done after your
282 init file is read, in case it sets `mail-host-address'."
286 (defcustom auto-save-list-file-prefix
287 (cond ((eq system-type
'ms-dos
)
288 ;; MS-DOS cannot have initial dot, and allows only 8.3 names
289 (concat user-emacs-directory
"auto-save.list/_s"))
291 (concat user-emacs-directory
"auto-save-list/.saves-")))
292 "Prefix for generating `auto-save-list-file-name'.
293 This is used after reading your `.emacs' file to initialize
294 `auto-save-list-file-name', by appending Emacs's pid and the system name,
295 if you have not already set `auto-save-list-file-name' yourself.
296 Directories in the prefix will be created if necessary.
297 Set this to nil if you want to prevent `auto-save-list-file-name'
298 from being initialized."
299 :type
'(choice (const :tag
"Don't record a session's auto save list" nil
)
303 (defvar emacs-quick-startup nil
)
305 (defvar emacs-basic-display nil
)
307 (defvar init-file-debug nil
)
309 (defvar init-file-had-error nil
310 "Non-nil if there was an error loading the user's init file.")
312 (defvar normal-top-level-add-subdirs-inode-list nil
)
314 (defvar no-blinking-cursor nil
)
316 (defvar default-frame-background-mode
)
318 (defvar pure-space-overflow nil
319 "Non-nil if building Emacs overflowed pure space.")
321 (defvar pure-space-overflow-message
"\
322 Warning Warning!!! Pure space overflow !!!Warning Warning
323 \(See the node Pure Storage in the Lisp manual for details.)\n")
325 (defvar tutorial-directory nil
326 "Directory containing the Emacs TUTORIAL files.")
328 ;; Get correct value in a dumped, installed Emacs.
330 (setq tutorial-directory
(file-name-as-directory
331 (expand-file-name "tutorials" data-directory
))))
333 (defun normal-top-level-add-subdirs-to-load-path ()
334 "Add all subdirectories of current directory to `load-path'.
335 More precisely, this uses only the subdirectories whose names
336 start with letters or digits; it excludes any subdirectory named `RCS'
337 or `CVS', and any subdirectory that contains a file named `.nosearch'."
340 (pending (list default-directory
)))
341 ;; This loop does a breadth-first tree walk on DIR's subtree,
342 ;; putting each subdir into DIRS as its contents are examined.
344 (push (pop pending
) dirs
)
345 (let* ((this-dir (car dirs
))
346 (contents (directory-files this-dir
))
347 (default-directory this-dir
)
348 (canonicalized (if (fboundp 'untranslated-canonical-name
)
349 (untranslated-canonical-name this-dir
))))
350 ;; The Windows version doesn't report meaningful inode
351 ;; numbers, so use the canonicalized absolute file name of the
352 ;; directory instead.
353 (setq attrs
(or canonicalized
354 (nthcdr 10 (file-attributes this-dir
))))
355 (unless (member attrs normal-top-level-add-subdirs-inode-list
)
356 (push attrs normal-top-level-add-subdirs-inode-list
)
357 (dolist (file contents
)
358 ;; The lower-case variants of RCS and CVS are for DOS/Windows.
359 (unless (member file
'("." ".." "RCS" "CVS" "rcs" "cvs"))
360 (when (and (string-match "\\`[[:alnum:]]" file
)
361 ;; Avoid doing a `stat' when it isn't necessary
362 ;; because that can cause trouble when an NFS server
364 (not (string-match "\\.elc?\\'" file
))
365 (file-directory-p file
))
366 (let ((expanded (expand-file-name file
)))
367 (unless (file-exists-p (expand-file-name ".nosearch"
369 (setq pending
(nconc pending
(list expanded
)))))))))))
370 (normal-top-level-add-to-load-path (cdr (nreverse dirs
)))))
372 ;; This function is called from a subdirs.el file.
373 ;; It assumes that default-directory is the directory
374 ;; in which the subdirs.el file exists,
375 ;; and it adds to load-path the subdirs of that directory
376 ;; as specified in DIRS. Normally the elements of DIRS are relative.
377 (defun normal-top-level-add-to-load-path (dirs)
378 (let ((tail load-path
)
379 (thisdir (directory-file-name default-directory
)))
381 ;;Don't go all the way to the nil terminator.
383 (not (equal thisdir
(car tail
)))
384 (not (and (memq system-type
'(ms-dos windows-nt
))
385 (equal (downcase thisdir
) (downcase (car tail
))))))
386 (setq tail
(cdr tail
)))
387 ;;Splice the new section in.
389 (setcdr tail
(append (mapcar 'expand-file-name dirs
) (cdr tail
))))))
391 (defun normal-top-level ()
392 (if command-line-processed
393 (message "Back to top level.")
394 (setq command-line-processed t
)
395 ;; Give *Messages* the same default-directory as *scratch*,
396 ;; just to keep things predictable.
397 (let ((dir default-directory
))
398 (with-current-buffer "*Messages*"
399 (setq default-directory dir
)))
400 ;; `user-full-name' is now known; reset its standard-value here.
401 (put 'user-full-name
'standard-value
402 (list (default-value 'user-full-name
)))
403 ;; For root, preserve owner and group when editing files.
404 (if (equal (user-uid) 0)
405 (setq backup-by-copying-when-mismatch t
))
406 ;; Look in each dir in load-path for a subdirs.el file.
407 ;; If we find one, load it, which will add the appropriate subdirs
408 ;; of that dir into load-path,
409 ;; Look for a leim-list.el file too. Loading it will register
410 ;; available input methods.
411 (let ((tail load-path
) dir
)
413 (setq dir
(car tail
))
414 (let ((default-directory dir
))
415 (load (expand-file-name "subdirs.el") t t t
))
416 (let ((default-directory dir
))
417 (load (expand-file-name "leim-list.el") t t t
))
418 ;; We don't use a dolist loop and we put this "setq-cdr" command at
419 ;; the end, because the subdirs.el files may add elements to the end
420 ;; of load-path and we want to take it into account.
421 (setq tail
(cdr tail
))))
422 (unless (eq system-type
'vax-vms
)
423 ;; If the PWD environment variable isn't accurate, delete it.
424 (let ((pwd (getenv "PWD")))
426 ;; Use FOO/., so that if FOO is a symlink, file-attributes
427 ;; describes the directory linked to, not FOO itself.
428 (or (equal (file-attributes
429 (concat (file-name-as-directory pwd
) "."))
431 (concat (file-name-as-directory default-directory
)
433 (setq process-environment
434 (delete (concat "PWD=" pwd
)
435 process-environment
))))))
436 (setq default-directory
(abbreviate-file-name default-directory
))
437 (let ((menubar-bindings-done nil
))
440 ;; Do this again, in case .emacs defined more abbreviations.
441 (setq default-directory
(abbreviate-file-name default-directory
))
442 ;; Specify the file for recording all the auto save files of this session.
443 ;; This is used by recover-session.
444 (or auto-save-list-file-name
445 (and auto-save-list-file-prefix
446 (setq auto-save-list-file-name
447 ;; Under MS-DOS our PID is almost always reused between
448 ;; Emacs invocations. We need something more unique.
449 (cond ((eq system-type
'ms-dos
)
450 ;; We are going to access the auto-save
451 ;; directory, so make sure it exists.
453 (file-name-directory auto-save-list-file-prefix
)
458 auto-save-list-file-prefix
))
463 auto-save-list-file-prefix
466 (unless inhibit-startup-hooks
467 (run-hooks 'emacs-startup-hook
)
469 (run-hooks 'term-setup-hook
)))
471 ;; Don't do this if we failed to create the initial frame,
472 ;; for instance due to a dense colormap.
473 (when (or frame-initial-frame
474 ;; If frame-initial-frame has no meaning, do this anyway.
475 (not (and initial-window-system
477 (not (eq initial-window-system
'pc
)))))
478 ;; Modify the initial frame based on what .emacs puts into
480 (if (fboundp 'frame-notice-user-settings
)
481 (frame-notice-user-settings))
482 ;; Set the faces for the initial background mode even if
483 ;; frame-notice-user-settings didn't (such as on a tty).
484 ;; frame-set-background-mode is idempotent, so it won't
485 ;; cause any harm if it's already been done.
486 (if (fboundp 'frame-set-background-mode
)
487 (frame-set-background-mode (selected-frame))))
489 ;; Now we know the user's default font, so add it to the menu.
490 (if (fboundp 'font-menu-add-default
)
491 (font-menu-add-default))
492 (and window-setup-hook
493 (run-hooks 'window-setup-hook
))
494 (or menubar-bindings-done
495 (if (display-popup-menus-p)
496 (precompute-menubar-bindings)))))
497 ;; Subprocesses of Emacs do not have direct access to the terminal, so
498 ;; unless told otherwise they should only assume a dumb terminal.
499 ;; We are careful to do it late (after term-setup-hook), although the
500 ;; new multi-tty code does not use $TERM any more there anyway.
501 (setenv "TERM" "dumb")
502 ;; Remove DISPLAY from the process-environment as well. This allows
503 ;; `callproc.c' to give it a useful adaptive default which is either
504 ;; the value of the `display' frame-parameter or the DISPLAY value
505 ;; from initial-environment.
506 (let ((display (frame-parameter nil
'display
)))
507 ;; Be careful which DISPLAY to remove from process-environment: follow
508 ;; the logic of `callproc.c'.
509 (if (stringp display
) (setq display
(concat "DISPLAY=" display
))
510 (dolist (varval initial-environment
)
511 (if (string-match "\\`DISPLAY=" varval
)
512 (setq display varval
))))
514 (delete display process-environment
)))))
516 ;; Precompute the keyboard equivalents in the menu bar items.
517 (defun precompute-menubar-bindings ()
518 (let ((submap (lookup-key global-map
[menu-bar
])))
520 (and (consp (car submap
))
521 (symbolp (car (car submap
)))
522 (stringp (car-safe (cdr (car submap
))))
523 (keymapp (cdr (cdr (car submap
))))
525 (x-popup-menu nil
(cdr (cdr (car submap
))))
528 (setq submap
(cdr submap
))))
529 (setq define-key-rebound-commands t
))
531 ;; Command-line options supported by tty's:
532 (defconst tty-long-option-alist
533 '(("--name" .
"-name")
535 ("--reverse-video" .
"-reverse")
536 ("--foreground-color" .
"-fg")
537 ("--background-color" .
"-bg")
538 ("--color" .
"-color")))
540 (defconst tool-bar-images-pixel-height
24
541 "Height in pixels of images in the tool bar.")
543 (defvar tool-bar-originally-present nil
544 "Non-nil if tool-bars are present before user and site init files are read.")
546 (defvar handle-args-function-alist
'((nil . tty-handle-args
))
547 "Functions for processing window-system dependent command-line arguments.
548 Window system startup files should add their own function to this
549 alist, which should parse the command line arguments. Those
550 pertaining to the window system should be processed and removed
551 from the returned command line.")
553 (defvar window-system-initialization-alist
'((nil . ignore
))
554 "Alist of window-system initialization functions.
555 Window-system startup files should add their own initialization
556 function to this list. The function should take no arguments,
557 and initialize the window system environment to prepare for
558 opening the first frame (e.g. open a connection to an X server).")
560 ;; Handle the X-like command-line arguments "-fg", "-bg", "-name", etc.
561 (defun tty-handle-args (args)
565 (not (equal (car args
) "--")))
566 (let* ((argi (pop args
))
569 ;; Check for long options with attached arguments
570 ;; and separate out the attached option argument into argval.
571 (when (string-match "^\\(--[^=]*\\)=" argi
)
572 (setq argval
(substring argi
(match-end 0))
573 argi
(match-string 1 argi
)))
574 (when (string-match "^--" argi
)
575 (setq completion
(try-completion argi tty-long-option-alist
))
576 (if (eq completion t
)
577 ;; Exact match for long option.
578 (setq argi
(cdr (assoc argi tty-long-option-alist
)))
579 (if (stringp completion
)
580 (let ((elt (assoc completion tty-long-option-alist
)))
581 ;; Check for abbreviated long option.
583 (error "Option `%s' is ambiguous" argi
))
584 (setq argi
(cdr elt
)))
585 ;; Check for a short option.
588 (cond ((member argi
'("-fg" "-foreground"))
589 (push (cons 'foreground-color
(or argval
(pop args
)))
590 default-frame-alist
))
591 ((member argi
'("-bg" "-background"))
592 (push (cons 'background-color
(or argval
(pop args
)))
593 default-frame-alist
))
594 ((member argi
'("-T" "-name"))
595 (unless argval
(setq argval
(pop args
)))
599 (let ((case-fold-search t
)
601 (setq argval
(invocation-name))
603 ;; Change any . or * characters in name to
604 ;; hyphens, so as to emulate behavior on X.
606 (setq i
(string-match "[.*]" argval
))
609 default-frame-alist
))
610 ((member argi
'("-r" "-rv" "-reverse"))
612 default-frame-alist
))
613 ((equal argi
"-color")
614 (unless argval
(setq argval
8)) ; default --color means 8 ANSI colors
615 (push (cons 'tty-color-mode
617 ((numberp argval
) argval
)
618 ((string-match "-?[0-9]+" argval
)
619 (string-to-number argval
))
620 (t (intern argval
))))
621 default-frame-alist
))
626 (defun command-line ()
627 (setq command-line-default-directory default-directory
)
629 ;; Choose a reasonable location for temporary files.
630 (custom-reevaluate-setting 'temporary-file-directory
)
631 (custom-reevaluate-setting 'small-temporary-file-directory
)
632 (custom-reevaluate-setting 'auto-save-file-name-transforms
)
634 ;; See if we should import version-control from the environment variable.
635 (let ((vc (getenv "VERSION_CONTROL")))
636 (cond ((eq vc nil
)) ;don't do anything if not set
637 ((member vc
'("t" "numbered"))
638 (setq version-control t
))
639 ((member vc
'("nil" "existing"))
640 (setq version-control nil
))
641 ((member vc
'("never" "simple"))
642 (setq version-control
'never
))))
644 ;;! This has been commented out; I currently find the behavior when
645 ;;! split-window-keep-point is nil disturbing, but if I can get used
646 ;;! to it, then it would be better to eliminate the option.
647 ;;! ;; Choose a good default value for split-window-keep-point.
648 ;;! (setq split-window-keep-point (> baud-rate 2400))
650 ;; Set the default strings to display in mode line for
651 ;; end-of-line formats that aren't native to this platform.
653 ((memq system-type
'(ms-dos windows-nt emx
))
654 (setq eol-mnemonic-unix
"(Unix)"
655 eol-mnemonic-mac
"(Mac)"))
656 ;; Both Mac and Unix EOLs are now "native" on Mac OS so keep the
657 ;; abbreviated strings `/' and `:' set in coding.c for them.
658 ((eq system-type
'macos
)
659 (setq eol-mnemonic-dos
"(DOS)"))
660 (t ; this is for Unix/GNU/Linux systems
661 (setq eol-mnemonic-dos
"(DOS)"
662 eol-mnemonic-mac
"(Mac)")))
664 ;; Make sure window system's init file was loaded in loadup.el if using a window system.
665 (condition-case error
666 (unless noninteractive
667 (if (and initial-window-system
669 (intern (concat (symbol-name initial-window-system
) "-win")))))
670 (error "Unsupported window system `%s'" initial-window-system
))
671 ;; Process window-system specific command line parameters.
672 (setq command-line-args
673 (funcall (or (cdr (assq initial-window-system handle-args-function-alist
))
674 (error "Unsupported window system `%s'" initial-window-system
))
676 ;; Initialize the window system. (Open connection, etc.)
677 (funcall (or (cdr (assq initial-window-system window-system-initialization-alist
))
678 (error "Unsupported window system `%s'" initial-window-system
))))
679 ;; If there was an error, print the error message and exit.
682 (if (eq (car error
) 'error
)
683 (apply 'concat
(cdr error
))
684 (if (memq 'file-error
(get (car error
) 'error-conditions
))
687 (mapconcat (lambda (obj) (prin1-to-string obj t
))
688 (cdr (cdr error
)) ", "))
690 (get (car error
) 'error-message
)
691 (mapconcat (lambda (obj) (prin1-to-string obj t
))
693 'external-debugging-output
)
694 (terpri 'external-debugging-output
)
695 (setq initial-window-system nil
)
698 (set-locale-environment nil
)
700 ;; Convert preloaded file names in load-history to absolute.
701 (let ((simple-file-name
702 ;; Look for simple.el or simple.elc and use their directory
703 ;; as the place where all Lisp files live.
704 (locate-file "simple" load-path
(get-load-suffixes)))
706 ;; Don't abort if simple.el cannot be found, but print a warning.
707 (if (null simple-file-name
)
709 (princ "Warning: Could not find simple.el nor simple.elc"
710 'external-debugging-output
)
711 (terpri 'external-debugging-output
))
712 (setq lisp-dir
(file-truename (file-name-directory simple-file-name
)))
714 (mapcar (lambda (elt)
715 (if (and (stringp (car elt
))
716 (not (file-name-absolute-p (car elt
))))
717 (cons (concat lisp-dir
723 ;; Convert the arguments to Emacs internal representation.
724 (let ((args (cdr command-line-args
)))
727 (decode-coding-string (car args
) locale-coding-system t
))
731 (args (cdr command-line-args
)))
733 ;; Figure out which user's init file to load,
734 ;; either from the environment or from the options.
735 (setq init-file-user
(if noninteractive nil
(user-login-name)))
736 ;; If user has not done su, use current $HOME to find .emacs.
738 (equal init-file-user
(user-real-login-name))
739 (setq init-file-user
""))
741 ;; Process the command-line args, and delete the arguments
742 ;; processed. This is consistent with the way main in emacs.c
744 (while (and (not done
) args
)
745 (let* ((longopts '(("--no-init-file") ("--no-site-file") ("--debug-init")
746 ("--user") ("--iconic") ("--icon-type") ("--quick")
747 ("--no-blinking-cursor") ("--basic-display")))
751 ;; Handle --OPTION=VALUE format.
752 (when (string-match "^\\(--[^=]*\\)=" argi
)
753 (setq argval
(substring argi
(match-end 0))
754 argi
(match-string 1 argi
)))
755 (unless (equal argi
"--")
756 (let ((completion (try-completion argi longopts
)))
757 (if (eq completion t
)
758 (setq argi
(substring argi
1))
759 (if (stringp completion
)
760 (let ((elt (assoc completion longopts
)))
762 (error "Option `%s' is ambiguous" argi
))
763 (setq argi
(substring (car elt
) 1)))
767 ((member argi
'("-Q" "-quick"))
768 (setq init-file-user nil
770 emacs-quick-startup t
))
771 ((member argi
'("-D" "-basic-display"))
772 (setq no-blinking-cursor t
773 emacs-basic-display t
)
774 (push '(vertical-scroll-bars . nil
) initial-frame-alist
))
775 ((member argi
'("-q" "-no-init-file"))
776 (setq init-file-user nil
))
777 ((member argi
'("-u" "-user"))
778 (setq init-file-user
(or argval
(pop args
))
780 ((equal argi
"-no-site-file")
781 (setq site-run-file nil
))
782 ((equal argi
"-debug-init")
783 (setq init-file-debug t
))
784 ((equal argi
"-iconic")
785 (push '(visibility . icon
) initial-frame-alist
))
786 ((member argi
'("-icon-type" "-i" "-itype"))
787 (push '(icon-type . t
) default-frame-alist
))
788 ((member argi
'("-nbc" "-no-blinking-cursor"))
789 (setq no-blinking-cursor t
))
790 ;; Push the popped arg back on the list of arguments.
794 ;; Was argval set but not used?
796 (error "Option `%s' doesn't allow an argument" argi
))))
798 ;; Re-attach the program name to the front of the arg list.
799 (and command-line-args
800 (setcdr command-line-args args
)))
802 (run-hooks 'before-init-hook
)
804 ;; Under X Window, this creates the X frame and deletes the terminal frame.
805 (when (fboundp 'frame-initialize
)
808 ;; Turn off blinking cursor if so specified in X resources. This is here
809 ;; only because all other settings of no-blinking-cursor are here.
810 (unless (or noninteractive
812 (and (memq window-system
'(x w32 mac
))
813 (not (member (x-get-resource "cursorBlink" "CursorBlink")
815 (setq no-blinking-cursor t
))
817 ;; If frame was created with a menu bar, set menu-bar-mode on.
818 (unless (or noninteractive
820 (and (memq initial-window-system
'(x w32
))
821 (<= (frame-parameter nil
'menu-bar-lines
) 0)))
824 ;; If frame was created with a tool bar, switch tool-bar-mode on.
825 (unless (or noninteractive
827 (not (display-graphic-p))
828 (<= (frame-parameter nil
'tool-bar-lines
) 0))
831 ;; Can't do this init in defcustom because the relevant variables
833 (custom-reevaluate-setting 'blink-cursor-mode
)
834 (custom-reevaluate-setting 'tooltip-mode
)
835 (custom-reevaluate-setting 'global-font-lock-mode
)
836 (custom-reevaluate-setting 'mouse-wheel-down-event
)
837 (custom-reevaluate-setting 'mouse-wheel-up-event
)
838 (custom-reevaluate-setting 'file-name-shadow-mode
)
839 (custom-reevaluate-setting 'send-mail-function
)
840 (custom-reevaluate-setting 'focus-follows-mouse
)
842 (normal-erase-is-backspace-setup-frame)
844 ;; Register default TTY colors for the case the terminal hasn't a
845 ;; terminal init file. We do this regardles of whether the terminal
846 ;; supports colors or not and regardless the current display type,
847 ;; since users can connect to color-capable terminals and also
848 ;; switch color support on or off in mid-session by setting the
849 ;; tty-color-mode frame parameter.
850 (tty-register-default-colors)
852 ;; Record whether the tool-bar is present before the user and site
853 ;; init files are processed. frame-notice-user-settings uses this
854 ;; to determine if the tool-bar has been disabled by the init files,
855 ;; and the frame needs to be resized.
856 (when (fboundp 'frame-notice-user-settings
)
857 (let ((tool-bar-lines (or (assq 'tool-bar-lines initial-frame-alist
)
858 (assq 'tool-bar-lines default-frame-alist
))))
859 (setq tool-bar-originally-present
862 (not (eq 0 (cdr tool-bar-lines
)))))))
864 (let ((old-scalable-fonts-allowed scalable-fonts-allowed
)
865 (old-font-list-limit font-list-limit
)
866 (old-face-ignored-fonts face-ignored-fonts
))
868 ;; Run the site-start library if it exists. The point of this file is
869 ;; that it is run before .emacs. There is no point in doing this after
870 ;; .emacs; that is useless.
871 ;; Note that user-init-file is nil at this point. Code that might
872 ;; be loaded from site-run-file and wants to test if -q was given
873 ;; should check init-file-user instead, since that is already set.
874 ;; See cus-edit.el for an example.
876 (load site-run-file t t
))
878 ;; Sites should not disable this. Only individuals should disable
879 ;; the startup screen.
880 (setq inhibit-startup-screen nil
)
882 ;; Warn for invalid user name.
884 (if (string-match "[~/:\n]" init-file-user
)
885 (display-warning 'initialization
886 (format "Invalid user name %s"
889 (if (file-directory-p (expand-file-name
890 ;; We don't support ~USER on MS-Windows except
891 ;; for the current user, and always load .emacs
892 ;; from the current user's home directory (see
893 ;; below). So always check "~", even if invoked
894 ;; with "-u USER", or if $USER or $LOGNAME are
895 ;; set to something different.
896 (if (eq system-type
'windows-nt
)
898 (concat "~" init-file-user
))))
900 (display-warning 'initialization
901 (format "User %s has no home directory"
905 ;; Load that user's init file, or the default one, or none.
906 (let (debug-on-error-from-init-file
907 debug-on-error-should-be-set
908 (debug-on-error-initial
909 (if (eq init-file-debug t
) 'startup init-file-debug
))
910 (orig-enable-multibyte default-enable-multibyte-characters
))
911 (let ((debug-on-error debug-on-error-initial
)
912 ;; This function actually reads the init files.
917 (let ((user-init-file-1
919 ((eq system-type
'ms-dos
)
920 (concat "~" init-file-user
"/_emacs"))
921 ((eq system-type
'windows-nt
)
922 ;; Prefer .emacs on Windows.
923 (if (directory-files "~" nil
"^\\.emacs\\(\\.elc?\\)?$")
925 ;; Also support _emacs for compatibility.
926 (if (directory-files "~" nil
"^_emacs\\(\\.elc?\\)?$")
928 ;; But default to .emacs if _emacs does not exist.
930 ((eq system-type
'vax-vms
)
933 (concat "~" init-file-user
"/.emacs")))))
934 ;; This tells `load' to store the file name found
935 ;; into user-init-file.
936 (setq user-init-file t
)
937 (load user-init-file-1 t t
)
939 (when (eq user-init-file t
)
940 ;; If we did not find ~/.emacs, try
941 ;; ~/.emacs.d/init.el.
945 (file-name-as-directory
946 (concat "~" init-file-user
"/.emacs.d")))))
949 ;; If we did not find the user's init file,
950 ;; set user-init-file conclusively.
951 ;; Don't let it be set from default.el.
952 (when (eq user-init-file t
)
953 (setq user-init-file user-init-file-1
))))
955 ;; If we loaded a compiled file, set
956 ;; `user-init-file' to the source version if that
958 (when (and user-init-file
959 (equal (file-name-extension user-init-file
)
961 (let* ((source (file-name-sans-extension user-init-file
))
962 (alt (concat source
".el")))
963 (setq source
(cond ((file-exists-p alt
) alt
)
964 ((file-exists-p source
) source
)
967 (when (file-newer-than-file-p source user-init-file
)
968 (message "Warning: %s is newer than %s"
969 source user-init-file
)
971 (setq user-init-file source
))))
973 (unless inhibit-default-init
974 (let ((inhibit-startup-screen nil
))
975 ;; Users are supposed to be told their rights.
976 ;; (Plus how to get help and how to undo.)
977 ;; Don't you dare turn this off for anyone
979 (load "default" t t
)))))))))
981 ;; Do this without a condition-case if the user wants to debug.
983 (condition-case error
986 (setq init-file-had-error nil
))
988 (let ((message-log-max nil
))
990 (set-buffer (get-buffer-create "*Messages*"))
992 (format "An error has occurred while loading `%s':\n\n"
995 (get (car error
) 'error-message
)
996 (if (cdr error
) ": " "")
997 (mapconcat (lambda (s) (prin1-to-string s t
)) (cdr error
) ", "))
999 "To ensure normal operation, you should investigate and remove the\n"
1000 "cause of the error in your initialization file. Start Emacs with\n"
1001 "the `--debug-init' option to view a complete error backtrace.\n\n"))
1002 (message "Error in init file: %s%s%s"
1003 (get (car error
) 'error-message
)
1004 (if (cdr error
) ": " "")
1005 (mapconcat 'prin1-to-string
(cdr error
) ", "))
1006 (let ((pop-up-windows nil
))
1007 (pop-to-buffer "*Messages*"))
1008 (setq init-file-had-error t
)))))
1010 (if (and deactivate-mark transient-mark-mode
)
1011 (with-current-buffer (window-buffer)
1014 ;; If the user has a file of abbrevs, read it (unless -batch).
1015 (when (and (not noninteractive
)
1016 (file-exists-p abbrev-file-name
)
1017 (file-readable-p abbrev-file-name
))
1018 (quietly-read-abbrev-file abbrev-file-name
))
1020 ;; If the abbrevs came entirely from the init file or the
1021 ;; abbrevs file, they do not need saving.
1022 (setq abbrevs-changed nil
)
1024 ;; If we can tell that the init file altered debug-on-error,
1025 ;; arrange to preserve the value that it set up.
1026 (or (eq debug-on-error debug-on-error-initial
)
1027 (setq debug-on-error-should-be-set t
1028 debug-on-error-from-init-file debug-on-error
)))
1029 (if debug-on-error-should-be-set
1030 (setq debug-on-error debug-on-error-from-init-file
))
1031 (unless (or default-enable-multibyte-characters
1032 (eq orig-enable-multibyte default-enable-multibyte-characters
))
1033 ;; Init file changed to unibyte. Reset existing multibyte
1034 ;; buffers (probably *scratch*, *Messages*, *Minibuff-0*).
1035 ;; Arguably this should only be done if they're free of
1036 ;; multibyte characters.
1037 (mapc (lambda (buffer)
1038 (with-current-buffer buffer
1039 (if enable-multibyte-characters
1040 (set-buffer-multibyte nil
))))
1042 ;; Also re-set the language environment in case it was
1043 ;; originally done before unibyte was set and is sensitive to
1044 ;; unibyte (display table, terminal coding system &c).
1045 (set-language-environment current-language-environment
)))
1047 ;; Do this here in case the init file sets mail-host-address.
1048 (if (equal user-mail-address
"")
1049 (setq user-mail-address
(or (getenv "EMAIL")
1050 (concat (user-login-name) "@"
1051 (or mail-host-address
1054 ;; Originally face attributes were specified via
1055 ;; `font-lock-face-attributes'. Users then changed the default
1056 ;; face attributes by setting that variable. However, we try and
1057 ;; be back-compatible and respect its value if set except for
1058 ;; faces where M-x customize has been used to save changes for the
1060 (when (boundp 'font-lock-face-attributes
)
1061 (let ((face-attributes font-lock-face-attributes
))
1062 (while face-attributes
1063 (let* ((face-attribute (pop face-attributes
))
1064 (face (car face-attribute
)))
1065 ;; Rustle up a `defface' SPEC from a
1066 ;; `font-lock-face-attributes' entry.
1067 (unless (get face
'saved-face
)
1068 (let ((foreground (nth 1 face-attribute
))
1069 (background (nth 2 face-attribute
))
1070 (bold-p (nth 3 face-attribute
))
1071 (italic-p (nth 4 face-attribute
))
1072 (underline-p (nth 5 face-attribute
))
1075 (setq face-spec
(cons ':foreground
(cons foreground face-spec
))))
1077 (setq face-spec
(cons ':background
(cons background face-spec
))))
1079 (setq face-spec
(append '(:weight bold
) face-spec
)))
1081 (setq face-spec
(append '(:slant italic
) face-spec
)))
1083 (setq face-spec
(append '(:underline t
) face-spec
)))
1084 (face-spec-set face
(list (list t face-spec
)) nil
)))))))
1086 ;; If parameter have been changed in the init file which influence
1087 ;; face realization, clear the face cache so that new faces will
1089 (unless (and (eq scalable-fonts-allowed old-scalable-fonts-allowed
)
1090 (eq font-list-limit old-font-list-limit
)
1091 (eq face-ignored-fonts old-face-ignored-fonts
))
1092 (clear-face-cache)))
1094 (run-hooks 'after-init-hook
)
1096 ;; Decode all default-directory.
1097 (if (and default-enable-multibyte-characters locale-coding-system
)
1099 (dolist (elt (buffer-list))
1101 (if default-directory
1102 (setq default-directory
1103 (decode-coding-string default-directory
1104 locale-coding-system t
))))
1105 (setq command-line-default-directory
1106 (decode-coding-string command-line-default-directory
1107 locale-coding-system t
))))
1109 ;; If *scratch* exists and init file didn't change its mode, initialize it.
1110 (if (get-buffer "*scratch*")
1111 (with-current-buffer "*scratch*"
1112 (if (eq major-mode
'fundamental-mode
)
1113 (funcall initial-major-mode
))))
1115 ;; Load library for our terminal type.
1116 ;; User init file can set term-file-prefix to nil to prevent this.
1117 (unless (or noninteractive
1118 initial-window-system
)
1119 (tty-run-terminal-initialization (selected-frame)))
1121 ;; Update the out-of-memory error message based on user's key bindings
1122 ;; for save-some-buffers.
1123 (setq memory-signal-data
1125 (substitute-command-keys "Memory exhausted--use \\[save-some-buffers] then exit and restart Emacs")))
1127 ;; Process the remaining args.
1128 (command-line-1 (cdr command-line-args
))
1130 ;; If -batch, terminate after processing the command options.
1131 (if noninteractive
(kill-emacs t
))
1133 ;; Run emacs-session-restore (session management) if started by
1134 ;; the session manager and we have a session manager connection.
1135 (if (and (boundp 'x-session-previous-id
)
1136 (stringp x-session-previous-id
))
1138 (emacs-session-restore x-session-previous-id
))))
1140 (defcustom initial-scratch-message
(purecopy "\
1141 ;; This buffer is for notes you don't want to save, and for Lisp evaluation.
1142 ;; If you want to create a file, visit that file with C-x C-f,
1143 ;; then enter the text in that file's own buffer.
1146 "Initial message displayed in *scratch* buffer at startup.
1147 If this is nil, no message will be displayed.
1148 If `inhibit-startup-screen' is non-nil, then no message is displayed,
1149 regardless of the value of this variable."
1150 :type
'(choice (text :tag
"Message")
1151 (const :tag
"none" nil
))
1152 :group
'initialization
)
1155 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1156 ;;; Fancy splash screen
1157 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1159 (defvar fancy-startup-text
1160 '((:face
(variable-pitch (:foreground
"red"))
1163 (lambda (button) (browse-url "http://www.gnu.org/software/emacs/"))
1164 "Browse http://www.gnu.org/software/emacs/")
1165 ", one component of the "
1168 (if (eq system-type
'gnu
/linux
)
1170 (lambda (button) (browse-url "http://www.gnu.org/gnu/linux-and-gnu.html"))
1171 "Browse http://www.gnu.org/gnu/linux-and-gnu.html")
1172 '("GNU" (lambda (button) (describe-project))
1173 "Display info on the GNU project")))
1174 " operating system.\n"
1175 :face variable-pitch
"To quit a partially entered command, type "
1176 :face default
"Control-g"
1177 :face variable-pitch
".\n\n"
1178 :link
("Emacs Tutorial" (lambda (button) (help-with-tutorial)))
1179 "\tLearn basic keystroke commands"
1181 (let* ((en "TUTORIAL")
1182 (tut (or (get-language-info current-language-environment
1185 (title (with-temp-buffer
1186 (insert-file-contents
1187 (expand-file-name tut tutorial-directory
)
1189 (search-forward ".")
1190 (buffer-substring (point-min) (1- (point))))))
1191 ;; If there is a specific tutorial for the current language
1192 ;; environment and it is not English, append its title.
1193 (if (string= en tut
)
1195 (concat " (" title
")"))))
1197 :face variable-pitch
1198 :link
("Emacs Guided Tour"
1199 (lambda (button) (browse-url "http://www.gnu.org/software/emacs/tour/"))
1200 "Browse http://www.gnu.org/software/emacs/tour/")
1201 "\tOverview of Emacs features\n"
1202 :link
("View Emacs Manual" (lambda (button) (info-emacs-manual)))
1203 "\tView the Emacs manual using Info\n"
1204 :link
("Absence of Warranty" (lambda (button) (describe-no-warranty)))
1205 "\tGNU Emacs comes with "
1206 :face
(variable-pitch (:slant oblique
))
1207 "ABSOLUTELY NO WARRANTY\n"
1208 :face variable-pitch
1209 :link
("Copying Conditions" (lambda (button) (describe-copying)))
1210 "\tConditions for redistributing and changing Emacs\n"
1211 :link
("Ordering Manuals" (lambda (button) (view-order-manuals)))
1212 "\tPurchasing printed copies of manuals\n"
1214 "A list of texts to show in the middle part of splash screens.
1215 Each element in the list should be a list of strings or pairs
1216 `:face FACE', like `fancy-splash-insert' accepts them.")
1218 (defvar fancy-about-text
1219 '((:face
(variable-pitch (:foreground
"red"))
1222 (lambda (button) (browse-url "http://www.gnu.org/software/emacs/"))
1223 "Browse http://www.gnu.org/software/emacs/")
1224 ", one component of the "
1227 (if (eq system-type
'gnu
/linux
)
1229 (lambda (button) (browse-url "http://www.gnu.org/gnu/linux-and-gnu.html"))
1230 "Browse http://www.gnu.org/gnu/linux-and-gnu.html")
1231 '("GNU" (lambda (button) (describe-project))
1232 "Display info on the GNU project.")))
1233 " operating system.\n"
1235 (list 'variable-pitch
1237 (if (eq (frame-parameter nil
'background-mode
) 'dark
)
1238 "cyan" "darkblue"))))
1240 (lambda () (emacs-version))
1242 :face
(variable-pitch (:height
0.5))
1243 (lambda () emacs-copyright
)
1245 :face variable-pitch
1248 (view-file (expand-file-name "AUTHORS" data-directory
))
1249 (goto-char (point-min))))
1250 "\tMany people have contributed code included in GNU Emacs\n"
1251 :link
("Contributing"
1253 (view-file (expand-file-name "CONTRIBUTE" data-directory
))
1254 (goto-char (point-min))))
1255 "\tHow to contribute improvements to Emacs\n"
1257 :link
("GNU and Freedom" (lambda (button) (describe-project)))
1258 "\tWhy we developed GNU Emacs, and the GNU operating system\n"
1259 :link
("Absence of Warranty" (lambda (button) (describe-no-warranty)))
1260 "\tGNU Emacs comes with "
1261 :face
(variable-pitch (:slant oblique
))
1262 "ABSOLUTELY NO WARRANTY\n"
1263 :face variable-pitch
1264 :link
("Copying Conditions" (lambda (button) (describe-copying)))
1265 "\tConditions for redistributing and changing Emacs\n"
1266 :link
("Getting New Versions" (lambda (button) (describe-distribution)))
1267 "\tHow to obtain the latest version of Emacs\n"
1268 :link
("Ordering Manuals" (lambda (button) (view-order-manuals)))
1269 "\tBuying printed manuals from the FSF\n"
1271 :link
("Emacs Tutorial" (lambda (button) (help-with-tutorial)))
1272 "\tLearn basic Emacs keystroke commands"
1274 (let* ((en "TUTORIAL")
1275 (tut (or (get-language-info current-language-environment
1278 (title (with-temp-buffer
1279 (insert-file-contents
1280 (expand-file-name tut tutorial-directory
)
1282 (search-forward ".")
1283 (buffer-substring (point-min) (1- (point))))))
1284 ;; If there is a specific tutorial for the current language
1285 ;; environment and it is not English, append its title.
1286 (if (string= en tut
)
1288 (concat " (" title
")"))))
1290 :link
("Emacs Guided Tour"
1291 (lambda (button) (browse-url "http://www.gnu.org/software/emacs/tour/"))
1292 "Browse http://www.gnu.org/software/emacs/tour/")
1293 "\tSee an overview of the many facilities of GNU Emacs"
1295 "A list of texts to show in the middle part of the About screen.
1296 Each element in the list should be a list of strings or pairs
1297 `:face FACE', like `fancy-splash-insert' accepts them.")
1300 (defgroup fancy-splash-screen
()
1301 "Fancy splash screen when Emacs starts."
1303 :group
'initialization
)
1305 (defcustom fancy-splash-image nil
1306 "*The image to show in the splash screens, or nil for defaults."
1307 :group
'fancy-splash-screen
1308 :type
'(choice (const :tag
"Default" nil
)
1309 (file :tag
"File")))
1312 (defvar splash-screen-keymap
1313 (let ((map (make-sparse-keymap)))
1314 (suppress-keymap map
)
1315 (set-keymap-parent map button-buffer-map
)
1316 (define-key map
"\C-?" 'scroll-down
)
1317 (define-key map
" " 'scroll-up
)
1318 (define-key map
"q" 'exit-splash-screen
)
1320 "Keymap for splash screen buffer.")
1322 ;; These are temporary storage areas for the splash screen display.
1324 (defun fancy-splash-insert (&rest args
)
1325 "Insert text into the current buffer, with faces.
1326 Arguments from ARGS should be either strings; functions called
1327 with no args that return a string; pairs `:face FACE', where FACE
1328 is a face specification usable with `put-text-property'; or pairs
1329 `:link LINK' where LINK is a list of arguments to pass to
1330 `insert-button', of the form (LABEL ACTION [HELP-ECHO]), which
1331 specifies the button's label, `action' property and help-echo string.
1332 FACE and LINK can also be functions, which are evaluated to obtain
1333 a face or button specification."
1334 (let ((current-face nil
))
1336 (cond ((eq (car args
) :face
)
1337 (setq args
(cdr args
) current-face
(car args
))
1338 (if (functionp current-face
)
1339 (setq current-face
(funcall current-face
))))
1340 ((eq (car args
) :link
)
1341 (setq args
(cdr args
))
1342 (let ((spec (car args
)))
1343 (if (functionp spec
)
1344 (setq spec
(funcall spec
)))
1345 (insert-button (car spec
)
1346 'face
(list 'link current-face
)
1348 'help-echo
(concat "mouse-2, RET: "
1350 "Follow this link"))
1352 (t (insert (propertize (let ((it (car args
)))
1357 'help-echo
(startup-echo-area-message)))))
1358 (setq args
(cdr args
)))))
1361 (defun fancy-splash-head ()
1362 "Insert the head part of the splash screen into the current buffer."
1363 (let* ((image-file (cond ((stringp fancy-splash-image
)
1365 ((and (display-color-p)
1366 (image-type-available-p 'xpm
))
1367 (if (and (fboundp 'x-display-planes
)
1368 (= (funcall 'x-display-planes
) 8))
1372 (img (create-image image-file
))
1373 (image-width (and img
(car (image-size img
))))
1374 (window-width (window-width (selected-window))))
1376 (when (> window-width image-width
)
1377 ;; Center the image in the window.
1378 (insert (propertize " " 'display
1379 `(space :align-to
(+ center
(-0.5 .
,img
)))))
1381 ;; Change the color of the XPM version of the splash image
1382 ;; so that it is visible with a dark frame background.
1383 (when (and (memq 'xpm img
)
1384 (eq (frame-parameter nil
'background-mode
) 'dark
))
1385 (setq img
(append img
'(:color-symbols
(("#000000" .
"gray30"))))))
1387 ;; Insert the image with a help-echo and a link.
1388 (make-button (prog1 (point) (insert-image img
)) (point)
1390 'help-echo
"mouse-2, RET: Browse http://www.gnu.org/"
1391 'action
(lambda (button) (browse-url "http://www.gnu.org/"))
1395 (defun fancy-startup-tail (&optional concise
)
1396 "Insert the tail part of the splash screen into the current buffer."
1397 (let ((fg (if (eq (frame-parameter nil
'background-mode
) 'dark
)
1398 "cyan" "darkblue")))
1400 (fancy-splash-insert
1401 :face
'variable-pitch
1403 :link
'("Open a File"
1404 (lambda (button) (call-interactively 'find-file
))
1405 "Specify a new file's name, to edit the file")
1407 :link
'("Open Home Directory"
1408 (lambda (button) (dired "~"))
1409 "Open your home directory, to operate on its files")
1411 :link
'("Customize Startup"
1412 (lambda (button) (customize-group 'initialization
))
1413 "Change initialization settings including this screen")
1415 (fancy-splash-insert :face
`(variable-pitch (:foreground
,fg
))
1419 :face
'(variable-pitch (:height
0.5))
1422 (and auto-save-list-file-prefix
1423 ;; Don't signal an error if the
1424 ;; directory for auto-save-list files
1425 ;; does not yet exist.
1426 (file-directory-p (file-name-directory
1427 auto-save-list-file-prefix
))
1429 (file-name-directory auto-save-list-file-prefix
)
1432 (regexp-quote (file-name-nondirectory
1433 auto-save-list-file-prefix
)))
1435 (fancy-splash-insert :face
'(variable-pitch (:foreground
"red"))
1436 "\nIf an Emacs session crashed recently, "
1438 :face
'(fixed-pitch :foreground
"red")
1439 "Meta-x recover-session RET"
1440 :face
'(variable-pitch (:foreground
"red"))
1442 " the files you were editing."))
1445 (fancy-splash-insert
1446 :face
'variable-pitch
"\n"
1447 :link
'("Dismiss this startup screen"
1449 (when startup-screen-inhibit-startup-screen
1450 (customize-set-variable 'inhibit-startup-screen t
)
1451 (customize-mark-to-save 'inhibit-startup-screen
)
1453 (let ((w (get-buffer-window "*GNU Emacs*")))
1454 (and w
(not (one-window-p)) (delete-window w
)))
1455 (kill-buffer "*GNU Emacs*")))
1457 (when (or user-init-file custom-file
)
1458 (let ((checked (create-image "\300\300\141\143\067\076\034\030"
1459 'xbm t
:width
8 :height
8 :background
"grey75"
1460 :foreground
"black" :relief -
2 :ascent
'center
))
1461 (unchecked (create-image (make-string 8 0)
1462 'xbm t
:width
8 :height
8 :background
"grey75"
1463 :foreground
"black" :relief -
2 :ascent
'center
)))
1465 " " :on-glyph checked
:off-glyph unchecked
'checked nil
1466 'display unchecked
'follow-link t
1467 'action
(lambda (button)
1468 (if (overlay-get button
'checked
)
1469 (progn (overlay-put button
'checked nil
)
1470 (overlay-put button
'display
(overlay-get button
:off-glyph
))
1471 (setq startup-screen-inhibit-startup-screen nil
))
1472 (overlay-put button
'checked t
)
1473 (overlay-put button
'display
(overlay-get button
:on-glyph
))
1474 (setq startup-screen-inhibit-startup-screen t
)))))
1475 (fancy-splash-insert :face
'(variable-pitch (:height
0.9))
1476 " Never show it again.")))))
1478 (defun exit-splash-screen ()
1479 "Stop displaying the splash screen buffer."
1483 (defun fancy-startup-screen (&optional concise
)
1484 "Display fancy startup screen.
1485 If CONCISE is non-nil, display a concise version of the
1486 splash screen in another window."
1487 (let ((splash-buffer (get-buffer-create "*GNU Emacs*")))
1488 (with-current-buffer splash-buffer
1489 (let ((inhibit-read-only t
))
1491 (make-local-variable 'startup-screen-inhibit-startup-screen
)
1492 (if pure-space-overflow
1493 (insert pure-space-overflow-message
))
1495 (fancy-splash-head))
1496 (dolist (text fancy-startup-text
)
1497 (apply #'fancy-splash-insert text
)
1499 (skip-chars-backward "\n")
1500 (delete-region (point) (point-max))
1502 (fancy-startup-tail concise
))
1503 (use-local-map splash-screen-keymap
)
1506 (set-buffer-modified-p nil
)
1507 (if (and view-read-only
(not view-mode
))
1508 (view-mode-enter nil
'kill-buffer
))
1509 (goto-char (point-min))
1510 (forward-line (if concise
2 4)))
1513 (display-buffer splash-buffer
)
1514 ;; If the splash screen is in a split window, fit it.
1515 (let ((window (get-buffer-window splash-buffer t
)))
1517 (eq window
(selected-window))
1518 (eq window
(next-window window
))
1519 (fit-window-to-buffer window
))))
1520 (switch-to-buffer splash-buffer
))))
1522 (defun fancy-about-screen ()
1523 "Display fancy About screen."
1524 (let ((frame (fancy-splash-frame)))
1525 (save-selected-window
1526 (select-frame frame
)
1527 (switch-to-buffer "*About GNU Emacs*")
1528 (setq buffer-undo-list t
1529 mode-line-format
(propertize "---- %b %-"
1530 'face
'mode-line-buffer-id
))
1531 (let ((inhibit-read-only t
))
1533 (if pure-space-overflow
1534 (insert pure-space-overflow-message
))
1536 (dolist (text fancy-about-text
)
1537 (apply #'fancy-splash-insert text
)
1539 (set-buffer-modified-p nil
)
1540 (goto-char (point-min))
1541 (force-mode-line-update))
1542 (use-local-map splash-screen-keymap
)
1544 (message "%s" (startup-echo-area-message))
1545 (setq buffer-read-only t
)
1546 (goto-char (point-min))
1549 (defun fancy-splash-frame ()
1550 "Return the frame to use for the fancy splash screen.
1551 Returning non-nil does not mean we should necessarily
1552 use the fancy splash screen, but if we do use it,
1553 we put it on this frame."
1555 (dolist (frame (append (frame-list) (list (selected-frame))))
1556 (if (and (frame-visible-p frame
)
1557 (not (window-minibuffer-p (frame-selected-window frame
))))
1558 (setq chosen-frame frame
)))
1561 (defun use-fancy-splash-screens-p ()
1562 "Return t if fancy splash screens should be used."
1563 (when (and (display-graphic-p)
1564 (or (and (display-color-p)
1565 (image-type-available-p 'xpm
))
1566 (image-type-available-p 'pbm
)))
1567 (let ((frame (fancy-splash-frame)))
1569 (let* ((img (create-image (or fancy-splash-image
1570 (if (and (display-color-p)
1571 (image-type-available-p 'xpm
))
1572 "splash.xpm" "splash.pbm"))))
1573 (image-height (and img
(cdr (image-size img nil frame
))))
1574 ;; We test frame-height so that, if the frame is split
1575 ;; by displaying a warning, that doesn't cause the normal
1576 ;; splash screen to be used.
1577 (frame-height (1- (frame-height frame
))))
1578 (> frame-height
(+ image-height
19)))))))
1581 (defun normal-splash-screen (&optional startup
)
1582 "Display non-graphic splash screen.
1583 If optional argument STARTUP is non-nil, display the startup screen
1584 after Emacs starts. If STARTUP is nil, display the About screen."
1585 (let ((prev-buffer (current-buffer)))
1586 (with-current-buffer (get-buffer-create "*About GNU Emacs*")
1587 (setq buffer-read-only nil
)
1589 (set (make-local-variable 'tab-width
) 8)
1591 (set (make-local-variable 'mode-line-format
)
1592 (propertize "---- %b %-" 'face
'mode-line-buffer-id
)))
1594 (if pure-space-overflow
1595 (insert pure-space-overflow-message
))
1597 ;; The convention for this piece of code is that
1598 ;; each piece of output starts with one or two newlines
1599 ;; and does not end with any newlines.
1600 (insert (if startup
"Welcome to GNU Emacs" "This is GNU Emacs"))
1602 (if (eq system-type
'gnu
/linux
)
1603 ", one component of the GNU/Linux operating system.\n"
1604 ", a part of the GNU operating system.\n"))
1607 (if (display-mouse-p)
1608 ;; The user can use the mouse to activate menus
1609 ;; so give help in terms of menu items.
1610 (normal-mouse-startup-screen)
1612 ;; No mouse menus, so give help using kbd commands.
1613 (normal-no-mouse-startup-screen))
1615 (normal-about-screen))
1617 ;; The rest of the startup screen is the same on all
1618 ;; kinds of terminals.
1620 ;; Give information on recovering, if there was a crash.
1622 auto-save-list-file-prefix
1623 ;; Don't signal an error if the
1624 ;; directory for auto-save-list files
1625 ;; does not yet exist.
1626 (file-directory-p (file-name-directory
1627 auto-save-list-file-prefix
))
1629 (file-name-directory auto-save-list-file-prefix
)
1632 (regexp-quote (file-name-nondirectory
1633 auto-save-list-file-prefix
)))
1635 (insert "\n\nIf an Emacs session crashed recently, "
1636 "type Meta-x recover-session RET\nto recover"
1637 " the files you were editing.\n"))
1639 (use-local-map splash-screen-keymap
)
1641 ;; Display the input that we set up in the buffer.
1642 (set-buffer-modified-p nil
)
1643 (setq buffer-read-only t
)
1644 (if (and view-read-only
(not view-mode
))
1645 (view-mode-enter nil
'kill-buffer
))
1646 (switch-to-buffer "*About GNU Emacs*")
1647 (if startup
(rename-buffer "*GNU Emacs*" t
))
1648 (goto-char (point-min)))))
1650 (defun normal-mouse-startup-screen ()
1651 ;; The user can use the mouse to activate menus
1652 ;; so give help in terms of menu items.
1654 To follow a link, click Mouse-1 on it, or move to it and type RET.
1655 To quit a partially entered command, type Control-g.\n")
1657 (insert "\nImportant Help menu items:\n")
1658 (insert-button "Emacs Tutorial"
1659 'action
(lambda (button) (help-with-tutorial))
1661 (insert "\t\tLearn basic Emacs keystroke commands\n")
1662 (insert-button "Read the Emacs Manual"
1663 'action
(lambda (button) (info-emacs-manual))
1665 (insert "\tView the Emacs manual using Info\n")
1666 (insert-button "\(Non)Warranty"
1667 'action
(lambda (button) (describe-no-warranty))
1669 (insert "\t\tGNU Emacs comes with ABSOLUTELY NO WARRANTY\n")
1670 (insert-button "Copying Conditions"
1671 'action
(lambda (button) (describe-copying))
1673 (insert "\tConditions for redistributing and changing Emacs\n")
1674 (insert-button "More Manuals / Ordering Manuals"
1675 'action
(lambda (button) (view-order-manuals))
1677 (insert " How to order printed manuals from the FSF\n")
1679 (insert "\nUseful tasks:\n")
1680 (insert-button "Visit New File"
1681 'action
(lambda (button) (call-interactively 'find-file
))
1683 (insert "\t\tSpecify a new file's name, to edit the file\n")
1684 (insert-button "Open Home Directory"
1685 'action
(lambda (button) (dired "~"))
1687 (insert "\tOpen your home directory, to operate on its files\n")
1688 (insert-button "Customize Startup"
1689 'action
(lambda (button) (customize-group 'initialization
))
1691 (insert "\tChange initialization settings including this screen\n")
1693 (insert "\n" (emacs-version)
1694 "\n" emacs-copyright
))
1696 ;; No mouse menus, so give help using kbd commands.
1697 (defun normal-no-mouse-startup-screen ()
1699 ;; If keys have their default meanings,
1700 ;; use precomputed string to save lots of time.
1701 (if (and (eq (key-binding "\C-h") 'help-command
)
1702 (eq (key-binding "\C-xu") 'advertised-undo
)
1703 (eq (key-binding "\C-x\C-c") 'save-buffers-kill-terminal
)
1704 (eq (key-binding "\C-ht") 'help-with-tutorial
)
1705 (eq (key-binding "\C-hi") 'info
)
1706 (eq (key-binding "\C-hr") 'info-emacs-manual
)
1707 (eq (key-binding "\C-h\C-n") 'view-emacs-news
))
1710 Get help\t C-h (Hold down CTRL and press h)
1712 (insert-button "Emacs manual"
1713 'action
(lambda (button) (info-emacs-manual))
1716 (insert-button "Browse manuals"
1717 'action
(lambda (button) (Info-directory))
1721 (insert-button "Emacs tutorial"
1722 'action
(lambda (button) (help-with-tutorial))
1724 (insert " C-h t\tUndo changes\t C-x u
1726 (insert-button "Buy manuals"
1727 'action
(lambda (button) (view-order-manuals))
1729 (insert "\t C-h C-m\tExit Emacs\t C-x C-c"))
1734 (let ((where (where-is-internal
1735 'help-command nil t
)))
1737 (key-description where
)
1739 (insert-button "Emacs manual"
1740 'action
(lambda (button) (info-emacs-manual))
1742 (insert (substitute-command-keys"\t \\[info-emacs-manual]\t"))
1743 (insert-button "Browse manuals"
1744 'action
(lambda (button) (Info-directory))
1746 (insert (substitute-command-keys "\t \\[info]
1748 (insert-button "Emacs tutorial"
1749 'action
(lambda (button) (help-with-tutorial))
1751 (insert (substitute-command-keys
1752 "\t \\[help-with-tutorial]\tUndo changes\t \\[advertised-undo]
1754 (insert-button "Buy manuals"
1755 'action
(lambda (button) (view-order-manuals))
1757 (insert (substitute-command-keys
1758 "\t \\[view-order-manuals]\tExit Emacs\t \\[save-buffers-kill-terminal]")))
1760 ;; Say how to use the menu bar with the keyboard.
1762 (insert-button "Activate menubar"
1763 'action
(lambda (button) (tmm-menubar))
1765 (if (and (eq (key-binding "\M-`") 'tmm-menubar
)
1766 (eq (key-binding [f10]) 'tmm-menubar))
1767 (insert " F10 or ESC ` or M-`")
1768 (insert (substitute-command-keys " \\[tmm-menubar]")))
1770 ;; Many users seem to have problems with these.
1772 \(`C-' means use the CTRL key. `M-' means use the Meta (or Alt) key.
1773 If you have no Meta key, you may instead type ESC followed by the character.)")
1775 ;; Insert links to useful tasks
1776 (insert "\nUseful tasks:\n")
1778 (insert-button "Visit New File"
1779 'action (lambda (button) (call-interactively 'find-file))
1782 (insert-button "Open Home Directory"
1783 'action (lambda (button) (dired "~"))
1787 (insert-button "Customize Startup"
1788 'action (lambda (button) (customize-group 'initialization))
1791 (insert-button "Open *scratch* buffer"
1792 'action (lambda (button) (switch-to-buffer
1793 (get-buffer-create "*scratch*")))
1796 (insert "\n" (emacs-version) "\n" emacs-copyright "\n")
1798 (if (and (eq (key-binding "\C-h\C-c") 'describe-copying)
1799 (eq (key-binding "\C-h\C-d") 'describe-distribution)
1800 (eq (key-binding "\C-h\C-w") 'describe-no-warranty))
1804 GNU Emacs comes with ABSOLUTELY NO WARRANTY; type C-h C-w for ")
1805 (insert-button "full details"
1806 'action (lambda (button) (describe-no-warranty))
1809 Emacs is Free Software--Free as in Freedom--so you can redistribute copies
1810 of Emacs and modify it; type C-h C-c to see ")
1811 (insert-button "the conditions"
1812 'action (lambda (button) (describe-copying))
1815 Type C-h C-d for information on ")
1816 (insert-button "getting the latest version"
1817 'action (lambda (button) (describe-distribution))
1820 (insert (substitute-command-keys
1822 GNU Emacs comes with ABSOLUTELY NO WARRANTY; type \\[describe-no-warranty] for "))
1823 (insert-button "full details"
1824 'action (lambda (button) (describe-no-warranty))
1826 (insert (substitute-command-keys ".
1827 Emacs is Free Software--Free as in Freedom--so you can redistribute copies
1828 of Emacs and modify it; type \\[describe-copying] to see "))
1829 (insert-button "the conditions"
1830 'action (lambda (button) (describe-copying))
1832 (insert (substitute-command-keys".
1833 Type \\[describe-distribution] for information on "))
1834 (insert-button "getting the latest version"
1835 'action (lambda (button) (describe-distribution))
1839 (defun normal-about-screen ()
1840 (insert "\n" (emacs-version) "\n" emacs-copyright "\n\n")
1842 (insert "To follow a link, click Mouse-1 on it, or move to it and type RET.\n\n")
1844 (insert-button "Authors"
1847 (view-file (expand-file-name "AUTHORS" data-directory))
1848 (goto-char (point-min)))
1850 (insert "\t\tMany people have contributed code included in GNU Emacs\n")
1852 (insert-button "Contributing"
1855 (view-file (expand-file-name "CONTRIBUTE" data-directory))
1856 (goto-char (point-min)))
1858 (insert "\tHow to contribute improvements to Emacs\n\n")
1860 (insert-button "GNU and Freedom"
1861 'action (lambda (button) (describe-project))
1863 (insert "\t\tWhy we developed GNU Emacs and the GNU system\n")
1865 (insert-button "Absence of Warranty"
1866 'action (lambda (button) (describe-no-warranty))
1868 (insert "\tGNU Emacs comes with ABSOLUTELY NO WARRANTY\n")
1870 (insert-button "Copying Conditions"
1871 'action (lambda (button) (describe-copying))
1873 (insert "\tConditions for redistributing and changing Emacs\n")
1875 (insert-button "Getting New Versions"
1876 'action (lambda (button) (describe-distribution))
1878 (insert "\tHow to get the latest version of GNU Emacs\n")
1880 (insert-button "More Manuals / Ordering Manuals"
1881 'action (lambda (button) (view-order-manuals))
1883 (insert "\tBuying printed manuals from the FSF\n"))
1885 (defun startup-echo-area-message ()
1886 (if (eq (key-binding "\C-h\C-p") 'describe-project)
1887 "For information about GNU Emacs and the GNU system, type C-h C-a."
1888 (substitute-command-keys
1889 "For information about GNU Emacs and the GNU system, type \
1890 \\[about-emacs].")))
1893 (defun display-startup-echo-area-message ()
1894 (let ((resize-mini-windows t))
1895 (or noninteractive ;(input-pending-p) init-file-had-error
1896 ;; t if the init file says to inhibit the echo area startup message.
1897 (and inhibit-startup-echo-area-message
1899 (or (and (get 'inhibit-startup-echo-area-message 'saved-value)
1900 (equal inhibit-startup-echo-area-message
1901 (if (equal init-file-user "")
1904 ;; Wasn't set with custom; see if .emacs has a setq.
1905 (let ((buffer (get-buffer-create " *temp*")))
1910 (insert-file-contents user-init-file)
1913 "([ \t\n]*setq[ \t\n]+"
1914 "inhibit-startup-echo-area-message[ \t\n]+"
1917 (if (equal init-file-user "")
1923 (kill-buffer buffer)))))
1924 (message "%s" (startup-echo-area-message)))))
1926 (defun display-startup-screen (&optional concise)
1927 "Display startup screen according to display.
1928 A fancy display is used on graphic displays, normal otherwise.
1930 If CONCISE is non-nil, display a concise version of the startup
1932 ;; Prevent recursive calls from server-process-filter.
1933 (if (not (get-buffer "*GNU Emacs*"))
1934 (if (use-fancy-splash-screens-p)
1935 (fancy-startup-screen concise)
1936 (normal-splash-screen t))))
1938 (defun display-about-screen ()
1939 "Display the *About GNU Emacs* buffer.
1940 A fancy display is used on graphic displays, normal otherwise."
1942 (if (use-fancy-splash-screens-p)
1943 (fancy-about-screen)
1944 (normal-splash-screen nil)))
1946 (defalias 'about-emacs 'display-about-screen)
1947 (defalias 'display-splash-screen 'display-startup-screen)
1949 (defun command-line-1 (command-line-args-left)
1950 (display-startup-echo-area-message)
1952 ;; Delay 2 seconds after an init file error message
1953 ;; was displayed, so user can read it.
1954 (when init-file-had-error
1957 (when (and pure-space-overflow
1958 (not noninteractive))
1961 "Building Emacs overflowed pure space. (See the node Pure Storage in the Lisp manual for details.)"
1964 (let ((file-count 0)
1966 (when command-line-args-left
1967 ;; We have command args; process them.
1968 (let ((dir command-line-default-directory)
1970 ;; This approach loses for "-batch -L DIR --eval "(require foo)",
1971 ;; if foo is intended to be found in DIR.
1973 ;; ;; The directories listed in --directory/-L options will *appear*
1974 ;; ;; at the front of `load-path' in the order they appear on the
1975 ;; ;; command-line. We cannot do this by *placing* them at the front
1976 ;; ;; in the order they appear, so we need this variable to hold them,
1980 ;; To DTRT we keep track of the splice point and modify `load-path'
1981 ;; straight away upon any --directory/-L option.
1983 just-files ;; t if this follows the magic -- option.
1984 ;; This includes our standard options' long versions
1985 ;; and long versions of what's on command-switch-alist.
1987 (append '(("--funcall") ("--load") ("--insert") ("--kill")
1988 ("--directory") ("--eval") ("--execute") ("--no-splash")
1989 ("--find-file") ("--visit") ("--file") ("--no-desktop"))
1990 (mapcar (lambda (elt)
1991 (list (concat "-" (car elt))))
1992 command-switch-alist)))
1996 ;; Add the long X options to longopts.
1997 (dolist (tem command-line-x-option-alist)
1998 (if (string-match "^--" (car tem))
1999 (push (list (car tem)) longopts)))
2001 ;; Loop, processing options.
2002 (while command-line-args-left
2003 (let* ((argi (car command-line-args-left))
2006 (setq command-line-args-left (cdr command-line-args-left))
2008 ;; Do preliminary decoding of the option.
2010 ;; After --, don't look for options; treat all args as files.
2012 ;; Convert long options to ordinary options
2013 ;; and separate out an attached option argument into argval.
2014 (when (string-match "^\\(--[^=]*\\)=" argi)
2015 (setq argval (substring argi (match-end 0))
2016 argi (match-string 1 argi)))
2017 (if (equal argi "--")
2018 (setq completion nil)
2019 (setq completion (try-completion argi longopts)))
2020 (if (eq completion t)
2021 (setq argi (substring argi 1))
2022 (if (stringp completion)
2023 (let ((elt (assoc completion longopts)))
2025 (error "Option `%s' is ambiguous" argi))
2026 (setq argi (substring (car elt) 1)))
2030 ;; Execute the option.
2031 (cond ((setq tem (assoc argi command-switch-alist))
2033 (let ((command-line-args-left
2034 (cons argval command-line-args-left)))
2035 (funcall (cdr tem) argi))
2036 (funcall (cdr tem) argi)))
2038 ((equal argi "-no-splash")
2039 (setq inhibit-startup-screen t))
2041 ((member argi '("-f" ; what the manual claims
2043 "-e")) ; what the source used to say
2044 (setq inhibit-startup-screen t)
2045 (setq tem (intern (or argval (pop command-line-args-left))))
2047 (command-execute tem)
2050 ((member argi '("-eval" "-execute"))
2051 (setq inhibit-startup-screen t)
2052 (eval (read (or argval (pop command-line-args-left)))))
2054 ((member argi '("-L" "-directory"))
2055 (setq tem (expand-file-name
2056 (command-line-normalize-file-name
2057 (or argval (pop command-line-args-left)))))
2058 (cond (splice (setcdr splice (cons tem (cdr splice)))
2059 (setq splice (cdr splice)))
2060 (t (setq load-path (cons tem load-path)
2061 splice load-path))))
2063 ((member argi '("-l" "-load"))
2064 (let* ((file (command-line-normalize-file-name
2065 (or argval (pop command-line-args-left))))
2066 ;; Take file from default dir if it exists there;
2067 ;; otherwise let `load' search for it.
2068 (file-ex (expand-file-name file)))
2069 (when (file-exists-p file-ex)
2070 (setq file file-ex))
2073 ;; This is used to handle -script. It's not clear
2074 ;; we need to document it.
2075 ((member argi '("-scriptload"))
2076 (let* ((file (command-line-normalize-file-name
2077 (or argval (pop command-line-args-left))))
2078 ;; Take file from default dir.
2079 (file-ex (expand-file-name file)))
2080 (load file-ex nil t t)))
2082 ((equal argi "-insert")
2083 (setq inhibit-startup-screen t)
2084 (setq tem (or argval (pop command-line-args-left)))
2086 (error "File name omitted from `-insert' option"))
2087 (insert-file-contents (command-line-normalize-file-name tem)))
2089 ((equal argi "-kill")
2092 ;; This is for when they use --no-desktop with -q, or
2093 ;; don't load Desktop in their .emacs. If desktop.el
2094 ;; _is_ loaded, it will handle this switch, and we
2095 ;; won't see it by the time we get here.
2096 ((equal argi "-no-desktop")
2097 (message "\"--no-desktop\" ignored because the Desktop package is not loaded"))
2099 ((string-match "^\\+[0-9]+\\'" argi)
2100 (setq line (string-to-number argi)))
2102 ((string-match "^\\+\\([0-9]+\\):\\([0-9]+\\)\\'" argi)
2103 (setq line (string-to-number (match-string 1 argi))
2104 column (string-to-number (match-string 2 argi))))
2106 ((setq tem (assoc argi command-line-x-option-alist))
2107 ;; Ignore X-windows options and their args if not using X.
2108 (setq command-line-args-left
2109 (nthcdr (nth 1 tem) command-line-args-left)))
2111 ((member argi '("-find-file" "-file" "-visit"))
2112 (setq inhibit-startup-screen t)
2113 ;; An explicit option to specify visiting a file.
2114 (setq tem (or argval (pop command-line-args-left)))
2115 (unless (stringp tem)
2116 (error "File name omitted from `%s' option" argi))
2117 (setq file-count (1+ file-count))
2118 (let ((file (expand-file-name
2119 (command-line-normalize-file-name tem) dir)))
2120 (if (= file-count 1)
2121 (setq first-file-buffer (find-file file))
2122 (find-file-other-window file)))
2126 (unless (< column 1)
2127 (move-to-column (1- column)))
2131 (setq just-files t))
2133 ;; We have almost exhausted our options. See if the
2134 ;; user has made any other command-line options available
2135 (let ((hooks command-line-functions)
2138 (not (setq did-hook (funcall (car hooks)))))
2139 (setq hooks (cdr hooks)))
2141 ;; Presume that the argument is a file name.
2143 (if (string-match "\\`-" argi)
2144 (error "Unknown option `%s'" argi))
2145 (unless initial-window-system
2146 (setq inhibit-startup-screen t))
2147 (setq file-count (1+ file-count))
2150 (command-line-normalize-file-name orig-argi)
2152 (cond ((= file-count 1)
2153 (setq first-file-buffer (find-file file)))
2154 (inhibit-startup-screen
2155 (find-file-other-window file))
2156 (t (find-file file))))
2160 (unless (< column 1)
2161 (move-to-column (1- column)))
2162 (setq column 0))))))
2163 ;; In unusual circumstances, the execution of Lisp code due
2164 ;; to command-line options can cause the last visible frame
2165 ;; to be deleted. In this case, kill emacs to avoid an
2167 (unless (frame-live-p (selected-frame)) (kill-emacs nil))))))
2169 (when initial-buffer-choice
2170 (cond ((eq initial-buffer-choice t)
2171 (switch-to-buffer (get-buffer-create "*scratch*")))
2172 ((stringp initial-buffer-choice)
2173 (find-file initial-buffer-choice))))
2175 (if (or inhibit-startup-screen
2176 initial-buffer-choice
2178 emacs-quick-startup)
2180 ;; Not displaying a startup screen. If 3 or more files
2181 ;; visited, and not all visible, show user what they all are.
2182 (and (> file-count 2)
2183 (not noninteractive)
2184 (not inhibit-startup-buffer-menu)
2185 (or (get-buffer-window first-file-buffer)
2188 ;; Display a startup screen, after some preparations.
2190 ;; If there are no switches to process, we might as well
2191 ;; run this hook now, and there may be some need to do it
2192 ;; before doing any output.
2193 (run-hooks 'emacs-startup-hook)
2194 (and term-setup-hook
2195 (run-hooks 'term-setup-hook))
2196 (setq inhibit-startup-hooks t)
2198 ;; It's important to notice the user settings before we
2199 ;; display the startup message; otherwise, the settings
2200 ;; won't take effect until the user gives the first
2201 ;; keystroke, and that's distracting.
2202 (when (fboundp 'frame-notice-user-settings)
2203 (frame-notice-user-settings))
2205 ;; If there are no switches to process, we might as well
2206 ;; run this hook now, and there may be some need to do it
2207 ;; before doing any output.
2208 (when window-setup-hook
2209 (run-hooks 'window-setup-hook)
2210 ;; Don't let the hook be run twice.
2211 (setq window-setup-hook nil))
2213 ;; ;; Do this now to avoid an annoying delay if the user
2214 ;; ;; clicks the menu bar during the sit-for.
2215 ;; (when (display-popup-menus-p)
2216 ;; (precompute-menubar-bindings))
2217 ;; (with-no-warnings
2218 ;; (setq menubar-bindings-done t))
2220 ;; If *scratch* exists and is empty, insert initial-scratch-message.
2221 (and initial-scratch-message
2222 (get-buffer "*scratch*")
2223 (with-current-buffer "*scratch*"
2224 (when (zerop (buffer-size))
2225 (insert initial-scratch-message)
2226 (set-buffer-modified-p nil))))
2228 (if (> file-count 0)
2229 (display-startup-screen t)
2230 (display-startup-screen nil)))))
2232 (defun command-line-normalize-file-name (file)
2233 "Collapse multiple slashes to one, to handle non-Emacs file names."
2235 ;; Use arg 1 so that we don't collapse // at the start of the file name.
2236 ;; That is significant on some systems.
2237 ;; However, /// at the beginning is supposed to mean just /, not //.
2238 (if (string-match "^///+" file)
2239 (setq file (replace-match "/" t t file)))
2240 (while (string-match "//+" file 1)
2241 (setq file (replace-match "/" t t file)))
2244 ;; arch-tag: 7e294698-244d-4758-984b-4047f887a5db
2245 ;;; startup.el ends here