(Fcall_interactively): Doc fix.
[emacs.git] / lisp / startup.el
blob2f0ca4b2c195f03f0c6944633a5a149b496b7bef
1 ;;; startup.el --- process Emacs shell arguments
3 ;; Copyright (C) 1985, 86, 92, 94, 95, 96, 97, 98, 99, 2000, 01, 02, 2004
4 ;; Free Software Foundation, Inc.
6 ;; Maintainer: FSF
7 ;; Keywords: internal
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software; you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; any later version.
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 ;; Boston, MA 02111-1307, USA.
26 ;;; Commentary:
28 ;; This file parses the command line and gets Emacs running. Options
29 ;; on the command line are handled in precedence order. For priorities
30 ;; see the structure standard_args in the emacs.c file.
32 ;;; Code:
34 (setq top-level '(normal-top-level))
36 (defvar command-line-processed nil
37 "Non-nil once command line has been processed.")
39 (defgroup initialization nil
40 "Emacs start-up procedure"
41 :group 'internal)
43 (defcustom inhibit-startup-message nil
44 "*Non-nil inhibits the initial startup message.
45 This is for use in your personal init file, once you are familiar
46 with the contents of the startup message."
47 :type 'boolean
48 :group 'initialization)
50 (defvaralias 'inhibit-splash-screen 'inhibit-startup-message)
52 (defcustom inhibit-startup-echo-area-message nil
53 "*Non-nil inhibits the initial startup echo area message.
54 Setting this variable takes effect
55 only if you do it with the customization buffer
56 or if your `.emacs' file contains a line of this form:
57 (setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\")
58 If your `.emacs' file is byte-compiled, use the following form instead:
59 (eval '(setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\"))
60 Thus, someone else using a copy of your `.emacs' file will see
61 the startup message unless he personally acts to inhibit it."
62 :type '(choice (const :tag "Don't inhibit")
63 (string :tag "Enter your user name, to inhibit"))
64 :group 'initialization)
66 (defcustom inhibit-default-init nil
67 "*Non-nil inhibits loading the `default' library."
68 :type 'boolean
69 :group 'initialization)
71 (defcustom inhibit-startup-buffer-menu nil
72 "*Non-nil inhibits display of buffer list when more than 2 files are loaded."
73 :type 'boolean
74 :group 'initialization)
76 (defvar command-switch-alist nil
77 "Alist of command-line switches.
78 Elements look like (SWITCH-STRING . HANDLER-FUNCTION).
79 HANDLER-FUNCTION receives the switch string as its sole argument;
80 the remaining command-line args are in the variable `command-line-args-left'.")
82 (defvar command-line-args-left nil
83 "List of command-line args not yet processed.")
85 (defvar command-line-functions nil ;; lrs 7/31/89
86 "List of functions to process unrecognized command-line arguments.
87 Each function should access the dynamically bound variables
88 `argi' (the current argument) and `command-line-args-left' (the remaining
89 arguments). The function should return non-nil only if it recognizes and
90 processes `argi'. If it does so, it may consume successive arguments by
91 altering `command-line-args-left' to remove them.")
93 (defvar command-line-default-directory nil
94 "Default directory to use for command line arguments.
95 This is normally copied from `default-directory' when Emacs starts.")
97 ;;; This is here, rather than in x-win.el, so that we can ignore these
98 ;;; options when we are not using X.
99 (defconst command-line-x-option-alist
100 '(("-bw" 1 x-handle-numeric-switch border-width)
101 ("-d" 1 x-handle-display)
102 ("-display" 1 x-handle-display)
103 ("-name" 1 x-handle-name-switch)
104 ("-title" 1 x-handle-switch title)
105 ("-T" 1 x-handle-switch title)
106 ("-r" 0 x-handle-switch reverse t)
107 ("-rv" 0 x-handle-switch reverse t)
108 ("-reverse" 0 x-handle-switch reverse t)
109 ("-reverse-video" 0 x-handle-switch reverse t)
110 ("-fn" 1 x-handle-switch font)
111 ("-font" 1 x-handle-switch font)
112 ("-fs" 0 x-handle-initial-switch fullscreen fullboth)
113 ("-fw" 0 x-handle-initial-switch fullscreen fullwidth)
114 ("-fh" 0 x-handle-initial-switch fullscreen fullheight)
115 ("-ib" 1 x-handle-numeric-switch internal-border-width)
116 ("-g" 1 x-handle-geometry)
117 ("-lsp" 1 x-handle-numeric-switch line-spacing)
118 ("-geometry" 1 x-handle-geometry)
119 ("-fg" 1 x-handle-switch foreground-color)
120 ("-foreground" 1 x-handle-switch foreground-color)
121 ("-bg" 1 x-handle-switch background-color)
122 ("-background" 1 x-handle-switch background-color)
123 ("-ms" 1 x-handle-switch mouse-color)
124 ("-itype" 0 x-handle-switch icon-type t)
125 ("-i" 0 x-handle-switch icon-type t)
126 ("-iconic" 0 x-handle-iconic)
127 ("-xrm" 1 x-handle-xrm-switch)
128 ("-cr" 1 x-handle-switch cursor-color)
129 ("-vb" 0 x-handle-switch vertical-scroll-bars t)
130 ("-hb" 0 x-handle-switch horizontal-scroll-bars t)
131 ("-bd" 1 x-handle-switch)
132 ("--border-width" 1 x-handle-numeric-switch border-width)
133 ("--display" 1 x-handle-display)
134 ("--name" 1 x-handle-name-switch)
135 ("--title" 1 x-handle-switch title)
136 ("--reverse-video" 0 x-handle-switch reverse t)
137 ("--font" 1 x-handle-switch font)
138 ("--fullscreen" 0 x-handle-initial-switch fullscreen fullboth)
139 ("--fullwidth" 0 x-handle-initial-switch fullscreen fullwidth)
140 ("--fullheight" 0 x-handle-initial-switch fullscreen fullheight)
141 ("--internal-border" 1 x-handle-numeric-switch internal-border-width)
142 ("--geometry" 1 x-handle-geometry)
143 ("--foreground-color" 1 x-handle-switch foreground-color)
144 ("--background-color" 1 x-handle-switch background-color)
145 ("--mouse-color" 1 x-handle-switch mouse-color)
146 ("--icon-type" 0 x-handle-switch icon-type t)
147 ("--iconic" 0 x-handle-iconic)
148 ("--xrm" 1 x-handle-xrm-switch)
149 ("--cursor-color" 1 x-handle-switch cursor-color)
150 ("--vertical-scroll-bars" 0 x-handle-switch vertical-scroll-bars t)
151 ("--line-spacing" 1 x-handle-numeric-switch line-spacing)
152 ("--border-color" 1 x-handle-switch border-color)
153 ("--smid" 1 x-handle-smid))
154 "Alist of X Windows options.
155 Each element has the form
156 (NAME NUMARGS HANDLER FRAME-PARAM VALUE)
157 where NAME is the option name string, NUMARGS is the number of arguments
158 that the option accepts, HANDLER is a function to call to handle the option.
159 FRAME-PARAM (optional) is the frame parameter this option specifies,
160 and VALUE is the value which is given to that frame parameter
161 \(most options use the argument for this, so VALUE is not present).")
163 (defvar before-init-hook nil
164 "Normal hook run after handling urgent options but before loading init files.")
166 (defvar after-init-hook nil
167 "Normal hook run after loading the init files, `~/.emacs' and `default.el'.
168 There is no `condition-case' around the running of these functions;
169 therefore, if you set `debug-on-error' non-nil in `.emacs',
170 an error in one of these functions will invoke the debugger.")
172 (defvar emacs-startup-hook nil
173 "Normal hook run after loading init files and handling the command line.")
175 (defvar term-setup-hook nil
176 "Normal hook run after loading terminal-specific Lisp code.
177 It also follows `emacs-startup-hook'. This hook exists for users to set,
178 so as to override the definitions made by the terminal-specific file.
179 Emacs never sets this variable itself.")
181 (defvar inhibit-startup-hooks nil
182 "Non-nil means don't run `term-setup-hook' and `emacs-startup-hook'.
183 This is because we already did so.")
185 (defvar keyboard-type nil
186 "The brand of keyboard you are using.
187 This variable is used to define
188 the proper function and keypad keys for use under X. It is used in a
189 fashion analogous to the environment variable TERM.")
191 (defvar window-setup-hook nil
192 "Normal hook run to initialize window system display.
193 Emacs runs this hook after processing the command line arguments and loading
194 the user's init file.")
196 (defcustom initial-major-mode 'lisp-interaction-mode
197 "Major mode command symbol to use for the initial *scratch* buffer."
198 :type 'function
199 :group 'initialization)
201 (defcustom init-file-user nil
202 "Identity of user whose `.emacs' file is or was read.
203 The value is nil if `-q' or `--no-init-file' was specified,
204 meaning do not load any init file.
206 Otherwise, the value may be the null string, meaning use the init file
207 for the user that originally logged in, or it may be a
208 string containing a user's name meaning use that person's init file.
210 In either of the latter cases, `(concat \"~\" init-file-user \"/\")'
211 evaluates to the name of the directory where the `.emacs' file was
212 looked for.
214 Setting `init-file-user' does not prevent Emacs from loading
215 `site-start.el'. The only way to do that is to use `--no-site-file'."
216 :type '(choice (const :tag "none" nil) string)
217 :group 'initialization)
219 (defcustom site-run-file "site-start"
220 "File containing site-wide run-time initializations.
221 This file is loaded at run-time before `~/.emacs'. It contains inits
222 that need to be in place for the entire site, but which, due to their
223 higher incidence of change, don't make sense to load into emacs'
224 dumped image. Thus, the run-time load order is: 1. file described in
225 this variable, if non-nil; 2. `~/.emacs'; 3. `default.el'.
227 Don't use the `site-start.el' file for things some users may not like.
228 Put them in `default.el' instead, so that users can more easily
229 override them. Users can prevent loading `default.el' with the `-q'
230 option or by setting `inhibit-default-init' in their own init files,
231 but inhibiting `site-start.el' requires `--no-site-file', which
232 is less convenient."
233 :type '(choice (const :tag "none" nil) string)
234 :group 'initialization)
236 (defcustom mail-host-address nil
237 "*Name of this machine, for purposes of naming users."
238 :type '(choice (const nil) string)
239 :group 'mail)
241 (defcustom user-mail-address (if command-line-processed
242 (concat (user-login-name) "@"
243 (or mail-host-address
244 (system-name)))
245 ;; Empty string means "not set yet".
247 "*Full mailing address of this user.
248 This is initialized based on `mail-host-address',
249 after your init file is read, in case it sets `mail-host-address'."
250 :type 'string
251 :group 'mail)
253 (defcustom auto-save-list-file-prefix
254 (cond ((eq system-type 'ms-dos)
255 ;; MS-DOS cannot have initial dot, and allows only 8.3 names
256 "~/_emacs.d/auto-save.list/_s")
258 "~/.emacs.d/auto-save-list/.saves-"))
259 "Prefix for generating `auto-save-list-file-name'.
260 This is used after reading your `.emacs' file to initialize
261 `auto-save-list-file-name', by appending Emacs's pid and the system name,
262 if you have not already set `auto-save-list-file-name' yourself.
263 Directories in the prefix will be created if necessary.
264 Set this to nil if you want to prevent `auto-save-list-file-name'
265 from being initialized."
266 :type '(choice (const :tag "Don't record a session's auto save list" nil)
267 string)
268 :group 'auto-save)
270 (defvar emacs-quick-startup nil)
272 (defvar init-file-debug nil)
274 (defvar init-file-had-error nil)
276 (defvar normal-top-level-add-subdirs-inode-list nil)
278 (defvar pure-space-overflow nil
279 "Non-nil if building Emacs overflowed pure space.")
281 (defun normal-top-level-add-subdirs-to-load-path ()
282 "Add all subdirectories of current directory to `load-path'.
283 More precisely, this uses only the subdirectories whose names
284 start with letters or digits; it excludes any subdirectory named `RCS'
285 or `CVS', and any subdirectory that contains a file named `.nosearch'."
286 (let (dirs
287 attrs
288 (pending (list default-directory)))
289 ;; This loop does a breadth-first tree walk on DIR's subtree,
290 ;; putting each subdir into DIRS as its contents are examined.
291 (while pending
292 (push (pop pending) dirs)
293 (let* ((this-dir (car dirs))
294 (contents (directory-files this-dir))
295 (default-directory this-dir)
296 (canonicalized (and (eq system-type 'windows-nt)
297 (untranslated-canonical-name this-dir))))
298 ;; The Windows version doesn't report meaningful inode
299 ;; numbers, so use the canonicalized absolute file name of the
300 ;; directory instead.
301 (setq attrs (or canonicalized
302 (nthcdr 10 (file-attributes this-dir))))
303 (unless (member attrs normal-top-level-add-subdirs-inode-list)
304 (push attrs normal-top-level-add-subdirs-inode-list)
305 (dolist (file contents)
306 ;; The lower-case variants of RCS and CVS are for DOS/Windows.
307 (unless (member file '("." ".." "RCS" "CVS" "rcs" "cvs"))
308 (when (and (string-match "\\`[[:alnum:]]" file)
309 ;; Avoid doing a `stat' when it isn't necessary
310 ;; because that can cause trouble when an NFS server
311 ;; is down.
312 (not (string-match "\\.elc?\\'" file))
313 (file-directory-p file))
314 (let ((expanded (expand-file-name file)))
315 (unless (file-exists-p (expand-file-name ".nosearch"
316 expanded))
317 (setq pending (nconc pending (list expanded)))))))))))
318 (normal-top-level-add-to-load-path (cdr (nreverse dirs)))))
320 ;; This function is called from a subdirs.el file.
321 ;; It assumes that default-directory is the directory
322 ;; in which the subdirs.el file exists,
323 ;; and it adds to load-path the subdirs of that directory
324 ;; as specified in DIRS. Normally the elements of DIRS are relative.
325 (defun normal-top-level-add-to-load-path (dirs)
326 (let ((tail load-path)
327 (thisdir (directory-file-name default-directory)))
328 (while (and tail
329 ;;Don't go all the way to the nil terminator.
330 (cdr tail)
331 (not (equal thisdir (car tail)))
332 (not (and (memq system-type '(ms-dos windows-nt))
333 (equal (downcase thisdir) (downcase (car tail))))))
334 (setq tail (cdr tail)))
335 ;;Splice the new section in.
336 (when tail
337 (setcdr tail (append (mapcar 'expand-file-name dirs) (cdr tail))))))
339 (defun normal-top-level ()
340 (if command-line-processed
341 (message "Back to top level.")
342 (setq command-line-processed t)
343 ;; Give *Messages* the same default-directory as *scratch*,
344 ;; just to keep things predictable.
345 (let ((dir default-directory))
346 (save-excursion
347 (set-buffer (get-buffer "*Messages*"))
348 (setq default-directory dir)))
349 ;; `user-full-name' is now known; reset its standard-value here.
350 (put 'user-full-name 'standard-value
351 (list (default-value 'user-full-name)))
352 ;; For root, preserve owner and group when editing files.
353 (if (equal (user-uid) 0)
354 (setq backup-by-copying-when-mismatch t))
355 ;; Look in each dir in load-path for a subdirs.el file.
356 ;; If we find one, load it, which will add the appropriate subdirs
357 ;; of that dir into load-path,
358 ;; Look for a leim-list.el file too. Loading it will register
359 ;; available input methods.
360 (let ((tail load-path)
361 new)
362 (while tail
363 (push (car tail) new)
364 (condition-case nil
365 (let ((default-directory (car tail)))
366 (load (expand-file-name "subdirs.el" (car tail)) t t t)))
367 (condition-case nil
368 (let ((default-directory (car tail)))
369 (load (expand-file-name "leim-list.el" (car tail)) t t t)))
370 (setq tail (cdr tail))))
371 (if (not (eq system-type 'vax-vms))
372 (progn
373 ;; If the PWD environment variable isn't accurate, delete it.
374 (let ((pwd (getenv "PWD")))
375 (and (stringp pwd)
376 ;; Use FOO/., so that if FOO is a symlink, file-attributes
377 ;; describes the directory linked to, not FOO itself.
378 (or (equal (file-attributes
379 (concat (file-name-as-directory pwd) "."))
380 (file-attributes
381 (concat (file-name-as-directory default-directory)
382 ".")))
383 (setq process-environment
384 (delete (concat "PWD=" pwd)
385 process-environment)))))))
386 (setq default-directory (abbreviate-file-name default-directory))
387 (let ((menubar-bindings-done nil))
388 (unwind-protect
389 (command-line)
390 ;; Do this again, in case .emacs defined more abbreviations.
391 (setq default-directory (abbreviate-file-name default-directory))
392 ;; Specify the file for recording all the auto save files of this session.
393 ;; This is used by recover-session.
394 (or auto-save-list-file-name
395 (and auto-save-list-file-prefix
396 (setq auto-save-list-file-name
397 ;; Under MS-DOS our PID is almost always reused between
398 ;; Emacs invocations. We need something more unique.
399 (cond ((eq system-type 'ms-dos)
400 ;; We are going to access the auto-save
401 ;; directory, so make sure it exists.
402 (make-directory
403 (file-name-directory auto-save-list-file-prefix)
405 (concat
406 (make-temp-name
407 (expand-file-name
408 auto-save-list-file-prefix))
409 "~"))
411 (expand-file-name
412 (format "%s%d-%s~"
413 auto-save-list-file-prefix
414 (emacs-pid)
415 (system-name))))))))
416 (unless inhibit-startup-hooks
417 (run-hooks 'emacs-startup-hook)
418 (and term-setup-hook
419 (run-hooks 'term-setup-hook)))
421 ;; Don't do this if we failed to create the initial frame,
422 ;; for instance due to a dense colormap.
423 (when (or frame-initial-frame
424 ;; If frame-initial-frame has no meaning, do this anyway.
425 (not (and window-system
426 (not noninteractive)
427 (not (eq window-system 'pc)))))
428 ;; Modify the initial frame based on what .emacs puts into
429 ;; ...-frame-alist.
430 (if (fboundp 'frame-notice-user-settings)
431 (frame-notice-user-settings))
432 (if (fboundp 'frame-set-background-mode)
433 ;; Set the faces for the initial background mode even if
434 ;; frame-notice-user-settings didn't (such as on a tty).
435 ;; frame-set-background-mode is idempotent, so it won't
436 ;; cause any harm if it's already been done.
437 (let ((frame-background-mode frame-background-mode)
438 (frame (selected-frame))
439 term)
440 (when (and (null window-system)
441 ;; Don't override a possibly customized value.
442 (null frame-background-mode)
443 ;; Don't override user specifications.
444 (null (frame-parameter frame 'reverse))
445 (let ((bg (frame-parameter frame 'background-color)))
446 (or (null bg)
447 (member bg '(unspecified "unspecified-bg")))))
448 (setq term (getenv "TERM"))
449 ;; Some files in lisp/term do a better job with the
450 ;; background mode, but we leave this here anyway, in
451 ;; case they remove those files.
452 (if (string-match "^\\(xterm\\|rxvt\\|dtterm\\|eterm\\)"
453 term)
454 (setq frame-background-mode 'light)))
455 (frame-set-background-mode (selected-frame)))))
457 ;; Now we know the user's default font, so add it to the menu.
458 (if (fboundp 'font-menu-add-default)
459 (font-menu-add-default))
460 (and window-setup-hook
461 (run-hooks 'window-setup-hook))
462 (or menubar-bindings-done
463 (if (display-popup-menus-p)
464 (precompute-menubar-bindings)))))))
466 ;; Precompute the keyboard equivalents in the menu bar items.
467 (defun precompute-menubar-bindings ()
468 (let ((submap (lookup-key global-map [menu-bar])))
469 (while submap
470 (and (consp (car submap))
471 (symbolp (car (car submap)))
472 (stringp (car-safe (cdr (car submap))))
473 (keymapp (cdr (cdr (car submap))))
474 (progn
475 (x-popup-menu nil (cdr (cdr (car submap))))
476 (if purify-flag
477 (garbage-collect))))
478 (setq submap (cdr submap))))
479 (setq define-key-rebound-commands t))
481 ;; Command-line options supported by tty's:
482 (defconst tty-long-option-alist
483 '(("--name" . "-name")
484 ("--title" . "-T")
485 ("--reverse-video" . "-reverse")
486 ("--foreground-color" . "-fg")
487 ("--background-color" . "-bg")
488 ("--color" . "-color")))
490 (defconst tool-bar-images-pixel-height 24
491 "Height in pixels of images in the tool bar.")
493 (defvar tool-bar-originally-present nil
494 "Non-nil if tool-bars are present before user and site init files are read.")
496 ;; Handle the X-like command-line arguments "-fg", "-bg", "-name", etc.
497 (defun tty-handle-args (args)
498 (let (rest)
499 (message "%s" args)
500 (while (and args
501 (not (equal (car args) "--")))
502 (let* ((argi (pop args))
503 (orig-argi argi)
504 argval completion)
505 ;; Check for long options with attached arguments
506 ;; and separate out the attached option argument into argval.
507 (when (string-match "^\\(--[^=]*\\)=" argi)
508 (setq argval (substring argi (match-end 0))
509 argi (match-string 1 argi)))
510 (when (string-match "^--" argi)
511 (setq completion (try-completion argi tty-long-option-alist))
512 (if (eq completion t)
513 ;; Exact match for long option.
514 (setq argi (cdr (assoc argi tty-long-option-alist)))
515 (if (stringp completion)
516 (let ((elt (assoc completion tty-long-option-alist)))
517 ;; Check for abbreviated long option.
518 (or elt
519 (error "Option `%s' is ambiguous" argi))
520 (setq argi (cdr elt)))
521 ;; Check for a short option.
522 (setq argval nil
523 argi orig-argi))))
524 (cond ((member argi '("-fg" "-foreground"))
525 (push (cons 'foreground-color (or argval (pop args)))
526 default-frame-alist))
527 ((member argi '("-bg" "-background"))
528 (push (cons 'background-color (or argval (pop args)))
529 default-frame-alist))
530 ((member argi '("-T" "-name"))
531 (unless argval (setq argval (pop args)))
532 (push (cons 'title
533 (if (stringp argval)
534 argval
535 (let ((case-fold-search t)
537 (setq argval (invocation-name))
539 ;; Change any . or * characters in name to
540 ;; hyphens, so as to emulate behavior on X.
541 (while
542 (setq i (string-match "[.*]" argval))
543 (aset argval i ?-))
544 argval)))
545 default-frame-alist))
546 ((member argi '("-r" "-rv" "-reverse"))
547 (push '(reverse . t)
548 default-frame-alist))
549 ((equal argi "-color")
550 (unless argval (setq argval 8)) ; default --color means 8 ANSI colors
551 (push (cons 'tty-color-mode
552 (cond
553 ((numberp argval) argval)
554 ((string-match "-?[0-9]+" argval)
555 (string-to-number argval))
556 (t (intern argval))))
557 default-frame-alist))
559 (push argi rest)))))
560 (nreverse rest)))
562 (defun command-line ()
563 (setq command-line-default-directory default-directory)
565 ;; Choose a reasonable location for temporary files.
566 (setq temporary-file-directory
567 (file-name-as-directory
568 (cond ((memq system-type '(ms-dos windows-nt))
569 (or (getenv "TEMP") (getenv "TMPDIR") (getenv "TMP") "c:/temp"))
570 ((memq system-type '(vax-vms axp-vms))
571 (or (getenv "TMPDIR") (getenv "TMP") (getenv "TEMP") "SYS$SCRATCH:"))
573 (or (getenv "TMPDIR") (getenv "TMP") (getenv "TEMP") "/tmp")))))
574 (setq small-temporary-file-directory
575 (if (eq system-type 'ms-dos)
576 (getenv "TMPDIR")))
577 (setq auto-save-file-name-transforms
578 (list (list (car (car auto-save-file-name-transforms))
579 ;; Don't put "\\2" inside expand-file-name, since
580 ;; it will be transformed to "/2" on DOS/Windows.
581 (concat temporary-file-directory "\\2") t)))
583 ;; See if we should import version-control from the environment variable.
584 (let ((vc (getenv "VERSION_CONTROL")))
585 (cond ((eq vc nil)) ;don't do anything if not set
586 ((member vc '("t" "numbered"))
587 (setq version-control t))
588 ((member vc '("nil" "existing"))
589 (setq version-control nil))
590 ((member vc '("never" "simple"))
591 (setq version-control 'never))))
593 ;;! This has been commented out; I currently find the behavior when
594 ;;! split-window-keep-point is nil disturbing, but if I can get used
595 ;;! to it, then it would be better to eliminate the option.
596 ;;! ;; Choose a good default value for split-window-keep-point.
597 ;;! (setq split-window-keep-point (> baud-rate 2400))
599 ;; Set the default strings to display in mode line for
600 ;; end-of-line formats that aren't native to this platform.
601 (cond
602 ((memq system-type '(ms-dos windows-nt emx))
603 (setq eol-mnemonic-unix "(Unix)"
604 eol-mnemonic-mac "(Mac)"))
605 ;; Both Mac and Unix EOLs are now "native" on Mac OS so keep the
606 ;; abbreviated strings `/' and `:' set in coding.c for them.
607 ((eq system-type 'macos)
608 (setq eol-mnemonic-dos "(DOS)"))
609 (t ; this is for Unix/GNU/Linux systems
610 (setq eol-mnemonic-dos "(DOS)"
611 eol-mnemonic-mac "(Mac)")))
613 ;; Read window system's init file if using a window system.
614 (condition-case error
615 (if (and window-system (not noninteractive))
616 (load (concat term-file-prefix
617 (symbol-name window-system)
618 "-win")
619 ;; Every window system should have a startup file;
620 ;; barf if we can't find it.
621 nil t))
622 ;; If we can't read it, print the error message and exit.
623 (error
624 (princ
625 (if (eq (car error) 'error)
626 (apply 'concat (cdr error))
627 (if (memq 'file-error (get (car error) 'error-conditions))
628 (format "%s: %s"
629 (nth 1 error)
630 (mapconcat (lambda (obj) (prin1-to-string obj t))
631 (cdr (cdr error)) ", "))
632 (format "%s: %s"
633 (get (car error) 'error-message)
634 (mapconcat (lambda (obj) (prin1-to-string obj t))
635 (cdr error) ", "))))
636 'external-debugging-output)
637 (terpri 'external-debugging-output)
638 (setq window-system nil)
639 (kill-emacs)))
641 ;; Windowed displays do this inside their *-win.el.
642 (unless (or (display-graphic-p) noninteractive)
643 (setq command-line-args (tty-handle-args command-line-args)))
645 (set-locale-environment nil)
647 ;; Convert the arguments to Emacs internal representation.
648 (let ((args (cdr command-line-args)))
649 (while args
650 (setcar args
651 (decode-coding-string (car args) locale-coding-system t))
652 (pop args)))
654 (let ((done nil)
655 (args (cdr command-line-args)))
657 ;; Figure out which user's init file to load,
658 ;; either from the environment or from the options.
659 (setq init-file-user (if noninteractive nil (user-login-name)))
660 ;; If user has not done su, use current $HOME to find .emacs.
661 (and init-file-user
662 (equal init-file-user (user-real-login-name))
663 (setq init-file-user ""))
665 ;; Process the command-line args, and delete the arguments
666 ;; processed. This is consistent with the way main in emacs.c
667 ;; does things.
668 (while (and (not done) args)
669 (let* ((longopts '(("--no-init-file") ("--no-site-file") ("--user")
670 ("--debug-init") ("--iconic") ("--icon-type")))
671 (argi (pop args))
672 (orig-argi argi)
673 argval)
674 ;; Handle --OPTION=VALUE format.
675 (when (string-match "^\\(--[^=]*\\)=" argi)
676 (setq argval (substring argi (match-end 0))
677 argi (match-string 1 argi)))
678 (unless (equal argi "--")
679 (let ((completion (try-completion argi longopts)))
680 (if (eq completion t)
681 (setq argi (substring argi 1))
682 (if (stringp completion)
683 (let ((elt (assoc completion longopts)))
684 (or elt
685 (error "Option `%s' is ambiguous" argi))
686 (setq argi (substring (car elt) 1)))
687 (setq argval nil
688 argi orig-argi)))))
689 (cond
690 ((equal argi "-Q")
691 (setq init-file-user nil
692 site-run-file nil
693 emacs-quick-startup t)
694 (push '(vertical-scroll-bars . nil) initial-frame-alist))
695 ((member argi '("-q" "-no-init-file"))
696 (setq init-file-user nil))
697 ((member argi '("-u" "-user"))
698 (setq init-file-user (or argval (pop args))
699 argval nil))
700 ((equal argi "-no-site-file")
701 (setq site-run-file nil))
702 ((equal argi "-debug-init")
703 (setq init-file-debug t))
704 ((equal argi "-iconic")
705 (push '(visibility . icon) initial-frame-alist))
706 ((member argi '("-icon-type" "-i" "-itype"))
707 (push '(icon-type . t) default-frame-alist))
708 ;; Push the popped arg back on the list of arguments.
710 (push argi args)
711 (setq done t)))
712 ;; Was argval set but not used?
713 (and argval
714 (error "Option `%s' doesn't allow an argument" argi))))
716 ;; Re-attach the program name to the front of the arg list.
717 (and command-line-args
718 (setcdr command-line-args args)))
720 ;; Under X Windows, this creates the X frame and deletes the terminal frame.
721 (when (fboundp 'frame-initialize)
722 (frame-initialize))
724 ;; If frame was created with a menu bar, set menu-bar-mode on.
725 (unless (or noninteractive
726 emacs-quick-startup
727 (and (memq window-system '(x w32))
728 (<= (frame-parameter nil 'menu-bar-lines) 0)))
729 (menu-bar-mode 1))
731 ;; If frame was created with a tool bar, switch tool-bar-mode on.
732 (unless (or noninteractive
733 emacs-quick-startup
734 (not (display-graphic-p))
735 (<= (frame-parameter nil 'tool-bar-lines) 0))
736 (tool-bar-mode 1))
738 ;; Can't do this init in defcustom because window-system isn't set.
739 (unless (or noninteractive
740 emacs-quick-startup
741 (eq system-type 'ms-dos)
742 (not (memq window-system '(x w32))))
743 (setq-default blink-cursor t)
744 (blink-cursor-mode 1))
746 (unless noninteractive
747 ;; DOS/Windows systems have a PC-type keyboard which has both
748 ;; <delete> and <backspace> keys.
749 (when (or (memq system-type '(ms-dos windows-nt))
750 (and (memq window-system '(x))
751 (fboundp 'x-backspace-delete-keys-p)
752 (x-backspace-delete-keys-p))
753 ;; If the terminal Emacs is running on has erase char
754 ;; set to ^H, use the Backspace key for deleting
755 ;; backward and, and the Delete key for deleting forward.
756 (and (null window-system)
757 (eq tty-erase-char 8)))
758 (setq-default normal-erase-is-backspace t)
759 (normal-erase-is-backspace-mode 1)))
761 (unless (or noninteractive
762 emacs-quick-startup
763 (not (display-graphic-p))
764 (not (fboundp 'x-show-tip)))
765 (setq-default tooltip-mode t)
766 (tooltip-mode 1))
768 ;; Register default TTY colors for the case the terminal hasn't a
769 ;; terminal init file.
770 (unless (memq window-system '(x w32))
771 ;; We do this regardles of whether the terminal supports colors
772 ;; or not, since they can switch that support on or off in
773 ;; mid-session by setting the tty-color-mode frame parameter.
774 (tty-register-default-colors))
776 ;; Record whether the tool-bar is present before the user and site
777 ;; init files are processed. frame-notice-user-settings uses this
778 ;; to determine if the tool-bar has been disabled by the init files,
779 ;; and the frame needs to be resized.
780 (when (fboundp 'frame-notice-user-settings)
781 (let ((tool-bar-lines (or (assq 'tool-bar-lines initial-frame-alist)
782 (assq 'tool-bar-lines default-frame-alist))))
783 (setq tool-bar-originally-present
784 (and tool-bar-lines
785 (cdr tool-bar-lines)
786 (not (eq 0 (cdr tool-bar-lines)))))))
788 (let ((old-scalable-fonts-allowed scalable-fonts-allowed)
789 (old-font-list-limit font-list-limit)
790 (old-face-ignored-fonts face-ignored-fonts))
792 (run-hooks 'before-init-hook)
794 ;; Run the site-start library if it exists. The point of this file is
795 ;; that it is run before .emacs. There is no point in doing this after
796 ;; .emacs; that is useless.
797 (if site-run-file
798 (load site-run-file t t))
800 ;; Sites should not disable this. Only individuals should disable
801 ;; the startup message.
802 (setq inhibit-startup-message nil)
804 ;; Load that user's init file, or the default one, or none.
805 (let (debug-on-error-from-init-file
806 debug-on-error-should-be-set
807 (debug-on-error-initial
808 (if (eq init-file-debug t) 'startup init-file-debug))
809 (orig-enable-multibyte default-enable-multibyte-characters))
810 (let ((debug-on-error debug-on-error-initial)
811 ;; This function actually reads the init files.
812 (inner
813 (function
814 (lambda ()
815 (if init-file-user
816 (let ((user-init-file-1
817 (cond
818 ((eq system-type 'ms-dos)
819 (concat "~" init-file-user "/_emacs"))
820 ((eq system-type 'windows-nt)
821 (if (directory-files "~" nil "^\\.emacs\\(\\.elc?\\)?$")
822 "~/.emacs"
823 "~/_emacs"))
824 ((eq system-type 'vax-vms)
825 "sys$login:.emacs")
827 (concat "~" init-file-user "/.emacs")))))
828 ;; This tells `load' to store the file name found
829 ;; into user-init-file.
830 (setq user-init-file t)
831 (load user-init-file-1 t t)
833 (when (eq user-init-file t)
834 ;; If we did not find ~/.emacs, try
835 ;; ~/.emacs.d/.emacs.
836 (let ((otherfile
837 (expand-file-name
838 (file-name-nondirectory user-init-file-1)
839 (file-name-as-directory
840 (expand-file-name
841 ".emacs.d"
842 (file-name-directory user-init-file-1))))))
843 (load otherfile t t)
845 ;; If we did not find the user's init file,
846 ;; set user-init-file conclusively.
847 ;; Don't let it be set from default.el.
848 (when (eq user-init-file t)
849 (setq user-init-file user-init-file-1))))
851 ;; If we loaded a compiled file, set
852 ;; `user-init-file' to the source version if that
853 ;; exists.
854 (when (and user-init-file
855 (equal (file-name-extension user-init-file)
856 "elc"))
857 (let* ((source (file-name-sans-extension user-init-file))
858 (alt (concat source ".el")))
859 (setq source (cond ((file-exists-p alt) alt)
860 ((file-exists-p source) source)
861 (t nil)))
862 (when source
863 (when (file-newer-than-file-p source user-init-file)
864 (message "Warning: %s is newer than %s"
865 source user-init-file)
866 (sit-for 1))
867 (setq user-init-file source))))
869 (when (stringp custom-file)
870 (unless (assoc custom-file load-history)
871 ;; If the .emacs file has set `custom-file' but hasn't
872 ;; loaded the file yet, let's load it.
873 (load custom-file t t)))
875 (unless inhibit-default-init
876 (let ((inhibit-startup-message nil))
877 ;; Users are supposed to be told their rights.
878 ;; (Plus how to get help and how to undo.)
879 ;; Don't you dare turn this off for anyone
880 ;; except yourself.
881 (load "default" t t)))))))))
882 (if init-file-debug
883 ;; Do this without a condition-case if the user wants to debug.
884 (funcall inner)
885 (condition-case error
886 (progn
887 (funcall inner)
888 (setq init-file-had-error nil))
889 (error
890 (let ((message-log-max nil))
891 (save-excursion
892 (set-buffer (get-buffer-create "*Messages*"))
893 (insert "\n\n"
894 (format "An error has occurred while loading `%s':\n\n"
895 user-init-file)
896 (format "%s%s%s"
897 (get (car error) 'error-message)
898 (if (cdr error) ": " "")
899 (mapconcat (lambda (s) (prin1-to-string s t)) (cdr error) ", "))
900 "\n\n"
901 "To ensure normal operation, you should investigate and remove the\n"
902 "cause of the error in your initialization file. Start Emacs with\n"
903 "the `--debug-init' option to view a complete error backtrace.\n\n"))
904 (message "Error in init file: %s%s%s"
905 (get (car error) 'error-message)
906 (if (cdr error) ": " "")
907 (mapconcat 'prin1-to-string (cdr error) ", "))
908 (let ((pop-up-windows nil))
909 (pop-to-buffer "*Messages*"))
910 (setq init-file-had-error t)))))
912 ;; If the user has a file of abbrevs, read it.
913 (if (file-exists-p abbrev-file-name)
914 (quietly-read-abbrev-file abbrev-file-name))
916 ;; If the abbrevs came entirely from the init file or the
917 ;; abbrevs file, they do not need saving.
918 (setq abbrevs-changed nil)
920 ;; If we can tell that the init file altered debug-on-error,
921 ;; arrange to preserve the value that it set up.
922 (or (eq debug-on-error debug-on-error-initial)
923 (setq debug-on-error-should-be-set t
924 debug-on-error-from-init-file debug-on-error)))
925 (if debug-on-error-should-be-set
926 (setq debug-on-error debug-on-error-from-init-file))
927 (unless (or default-enable-multibyte-characters
928 (eq orig-enable-multibyte default-enable-multibyte-characters))
929 ;; Init file changed to unibyte. Reset existing multibyte
930 ;; buffers (probably *scratch*, *Messages*, *Minibuff-0*).
931 ;; Arguably this should only be done if they're free of
932 ;; multibyte characters.
933 (mapcar (lambda (buffer)
934 (with-current-buffer buffer
935 (if enable-multibyte-characters
936 (set-buffer-multibyte nil))))
937 (buffer-list))
938 ;; Also re-set the language environment in case it was
939 ;; originally done before unibyte was set and is sensitive to
940 ;; unibyte (display table, terminal coding system &c).
941 (set-language-environment current-language-environment)))
943 ;; Do this here in case the init file sets mail-host-address.
944 (if (equal user-mail-address "")
945 (setq user-mail-address (concat (user-login-name) "@"
946 (or mail-host-address
947 (system-name)))))
949 ;; If parameter have been changed in the init file which influence
950 ;; face realization, clear the face cache so that new faces will
951 ;; be realized.
952 (unless (and (eq scalable-fonts-allowed old-scalable-fonts-allowed)
953 (eq font-list-limit old-font-list-limit)
954 (eq face-ignored-fonts old-face-ignored-fonts))
955 (clear-face-cache)))
957 (run-hooks 'after-init-hook)
959 ;; If *scratch* exists and init file didn't change its mode, initialize it.
960 (if (get-buffer "*scratch*")
961 (with-current-buffer "*scratch*"
962 (if (eq major-mode 'fundamental-mode)
963 (funcall initial-major-mode))))
965 ;; Load library for our terminal type.
966 ;; User init file can set term-file-prefix to nil to prevent this.
967 (unless (or noninteractive
968 window-system
969 (null term-file-prefix))
970 (let ((term (getenv "TERM"))
971 hyphend)
972 (while (and term
973 (not (load (concat term-file-prefix term) t t)))
974 ;; Strip off last hyphen and what follows, then try again
975 (setq term
976 (if (setq hyphend (string-match "[-_][^-_]+$" term))
977 (substring term 0 hyphend)
978 nil)))))
980 ;; Update the out-of-memory error message based on user's key bindings
981 ;; for save-some-buffers.
982 (setq memory-signal-data
983 (list 'error
984 (substitute-command-keys "Memory exhausted--use \\[save-some-buffers] then exit and restart Emacs")))
986 ;; Process the remaining args.
987 (command-line-1 (cdr command-line-args))
989 ;; If -batch, terminate after processing the command options.
990 (if noninteractive (kill-emacs t))
992 ;; Run emacs-session-restore (session management) if started by
993 ;; the session manager and we have a session manager connection.
994 (if (and (boundp 'x-session-previous-id)
995 (stringp x-session-previous-id))
996 (emacs-session-restore x-session-previous-id)))
998 (defcustom initial-scratch-message (purecopy "\
999 ;; This buffer is for notes you don't want to save, and for Lisp evaluation.
1000 ;; If you want to create a file, visit that file with C-x C-f,
1001 ;; then enter the text in that file's own buffer.
1004 "Initial message displayed in *scratch* buffer at startup.
1005 If this is nil, no message will be displayed."
1006 :type '(choice (text :tag "Message")
1007 (const :tag "none" nil))
1008 :group 'initialization)
1011 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1012 ;;; Fancy splash screen
1013 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1015 (defvar fancy-splash-text
1016 '((:face variable-pitch
1017 "You can do basic editing with the menu bar and scroll bar \
1018 using the mouse.\n\n"
1019 :face (variable-pitch :weight bold)
1020 "Important Help menu items:\n"
1021 :face variable-pitch "\
1022 Emacs Tutorial\tLearn-by-doing tutorial for using Emacs efficiently
1023 Emacs FAQ\tFrequently asked questions and answers
1024 Read the Emacs Manual\tView the Emacs manual using Info
1025 \(Non)Warranty\tGNU Emacs comes with "
1026 :face (variable-pitch :slant oblique)
1027 "ABSOLUTELY NO WARRANTY\n"
1028 :face variable-pitch
1030 Copying Conditions\tConditions for redistributing and changing Emacs
1031 More Manuals / Ordering Manuals Buying printed manuals from the FSF\n")
1032 (:face variable-pitch
1033 "You can do basic editing with the menu bar and scroll bar \
1034 using the mouse.\n\n"
1035 :face (variable-pitch :weight bold)
1036 "Useful File menu items:\n"
1037 :face variable-pitch "\
1038 Exit Emacs\t(Or type Control-x followed by Control-c)
1039 Recover Session\tRecover files you were editing before a crash
1046 "A list of texts to show in the middle part of splash screens.
1047 Each element in the list should be a list of strings or pairs
1048 `:face FACE', like `fancy-splash-insert' accepts them.")
1051 (defgroup fancy-splash-screen ()
1052 "Fancy splash screen when Emacs starts."
1053 :version "21.1"
1054 :group 'initialization)
1057 (defcustom fancy-splash-delay 10
1058 "*Delay in seconds between splash screens."
1059 :group 'fancy-splash-screen
1060 :type 'integer)
1063 (defcustom fancy-splash-max-time 60
1064 "*Show splash screens for at most this number of seconds.
1065 Values less than 60 seconds are ignored."
1066 :group 'fancy-splash-screen
1067 :type 'integer)
1070 (defcustom fancy-splash-image nil
1071 "*The image to show in the splash screens, or nil for defaults."
1072 :group 'fancy-splash-screen
1073 :type '(choice (const :tag "Default" nil)
1074 (file :tag "File")))
1077 ;; These are temporary storage areas for the splash screen display.
1079 (defvar fancy-current-text nil)
1080 (defvar fancy-splash-help-echo nil)
1081 (defvar fancy-splash-stop-time nil)
1082 (defvar fancy-splash-outer-buffer nil)
1084 (defun fancy-splash-insert (&rest args)
1085 "Insert text into the current buffer, with faces.
1086 Arguments from ARGS should be either strings or pairs `:face FACE',
1087 where FACE is a valid face specification, as it can be used with
1088 `put-text-properties'."
1089 (let ((current-face nil))
1090 (while args
1091 (if (eq (car args) :face)
1092 (setq args (cdr args) current-face (car args))
1093 (insert (propertize (car args)
1094 'face current-face
1095 'help-echo fancy-splash-help-echo)))
1096 (setq args (cdr args)))))
1099 (defun fancy-splash-head ()
1100 "Insert the head part of the splash screen into the current buffer."
1101 (let* ((image-file (cond ((stringp fancy-splash-image)
1102 fancy-splash-image)
1103 ((and (display-color-p)
1104 (image-type-available-p 'xpm))
1105 (if (and (fboundp 'x-display-planes)
1106 (= (funcall 'x-display-planes) 8))
1107 "splash8.xpm"
1108 "splash.xpm"))
1109 (t "splash.pbm")))
1110 (img (create-image image-file))
1111 (image-width (and img (car (image-size img))))
1112 (window-width (window-width (selected-window))))
1113 (when img
1114 (when (> window-width image-width)
1115 ;; Center the image in the window.
1116 (insert (propertize " " 'display
1117 `(space :align-to (+ center (-0.5 . ,img)))))
1119 ;; Change the color of the XPM version of the splash image
1120 ;; so that it is visible with a dark frame background.
1121 (when (and (memq 'xpm img)
1122 (eq (frame-parameter nil 'background-mode) 'dark))
1123 (setq img (append img '(:color-symbols (("#000000" . "gray30"))))))
1125 ;; Insert the image with a help-echo and a keymap.
1126 (let ((map (make-sparse-keymap))
1127 (help-echo "mouse-2: browse http://www.gnu.org/"))
1128 (define-key map [mouse-2]
1129 (lambda ()
1130 (interactive)
1131 (browse-url "http://www.gnu.org/")
1132 (throw 'exit nil)))
1133 (define-key map [down-mouse-2] 'ignore)
1134 (define-key map [up-mouse-2] 'ignore)
1135 (insert-image img (propertize "xxx" 'help-echo help-echo
1136 'keymap map)))
1137 (insert "\n"))))
1138 (fancy-splash-insert
1139 :face '(variable-pitch :foreground "red")
1140 (if (eq system-type 'gnu/linux)
1141 "GNU Emacs is one component of the GNU/Linux operating system."
1142 "GNU Emacs is one component of the GNU operating system."))
1143 (insert "\n")
1144 (unless (equal (buffer-name fancy-splash-outer-buffer) "*scratch*")
1145 (fancy-splash-insert :face 'variable-pitch
1146 (substitute-command-keys
1147 "Type \\[recenter] to begin editing your file.\n"))))
1150 (defun fancy-splash-tail ()
1151 "Insert the tail part of the splash screen into the current buffer."
1152 (let ((fg (if (eq (frame-parameter nil 'background-mode) 'dark)
1153 "cyan" "darkblue")))
1154 (fancy-splash-insert :face `(variable-pitch :foreground ,fg)
1155 "\nThis is "
1156 (emacs-version)
1157 "\n"
1158 :face '(variable-pitch :height 0.5)
1159 "Copyright (C) 2002 Free Software Foundation, Inc.")
1160 (and auto-save-list-file-prefix
1161 ;; Don't signal an error if the
1162 ;; directory for auto-save-list files
1163 ;; does not yet exist.
1164 (file-directory-p (file-name-directory
1165 auto-save-list-file-prefix))
1166 (directory-files
1167 (file-name-directory auto-save-list-file-prefix)
1169 (concat "\\`"
1170 (regexp-quote (file-name-nondirectory
1171 auto-save-list-file-prefix)))
1173 (fancy-splash-insert :face '(variable-pitch :foreground "red")
1174 "\n\nIf an Emacs session crashed recently, "
1175 "type M-x recover-session RET\nto recover"
1176 " the files you were editing."))))
1178 (defun fancy-splash-screens-1 (buffer)
1179 "Timer function displaying a splash screen."
1180 (when (> (float-time) fancy-splash-stop-time)
1181 (throw 'stop-splashing nil))
1182 (unless fancy-current-text
1183 (setq fancy-current-text fancy-splash-text))
1184 (let ((text (car fancy-current-text)))
1185 (set-buffer buffer)
1186 (erase-buffer)
1187 (if pure-space-overflow
1188 (insert "Warning Warning Pure space overflow Warning Warning\n"))
1189 (fancy-splash-head)
1190 (apply #'fancy-splash-insert text)
1191 (fancy-splash-tail)
1192 (unless (current-message)
1193 (message fancy-splash-help-echo))
1194 (set-buffer-modified-p nil)
1195 (goto-char (point-min))
1196 (force-mode-line-update)
1197 (setq fancy-current-text (cdr fancy-current-text))))
1200 (defun fancy-splash-default-action ()
1201 "Stop displaying the splash screen buffer.
1202 This is an internal function used to turn off the splash screen after
1203 the user caused an input event by hitting a key or clicking with the
1204 mouse."
1205 (interactive)
1206 (push last-command-event unread-command-events)
1207 (throw 'exit nil))
1210 (defun fancy-splash-screens ()
1211 "Display fancy splash screens when Emacs starts."
1212 (setq fancy-splash-help-echo (startup-echo-area-message))
1213 (let ((old-hourglass display-hourglass)
1214 (fancy-splash-outer-buffer (current-buffer))
1215 splash-buffer
1216 (old-minor-mode-map-alist minor-mode-map-alist)
1217 (frame (fancy-splash-frame))
1218 timer)
1219 (save-selected-window
1220 (select-frame frame)
1221 (switch-to-buffer "GNU Emacs")
1222 (setq tab-width 20)
1223 (setq splash-buffer (current-buffer))
1224 (catch 'stop-splashing
1225 (unwind-protect
1226 (let ((map (make-sparse-keymap)))
1227 (use-local-map map)
1228 (define-key map [switch-frame] 'ignore)
1229 (define-key map [t] 'fancy-splash-default-action)
1230 (define-key map [mouse-movement] 'ignore)
1231 (define-key map [mode-line t] 'ignore)
1232 (setq cursor-type nil
1233 display-hourglass nil
1234 minor-mode-map-alist nil
1235 buffer-undo-list t
1236 mode-line-format (propertize "---- %b %-"
1237 'face '(:weight bold))
1238 fancy-splash-stop-time (+ (float-time)
1239 (max 60 fancy-splash-max-time))
1240 timer (run-with-timer 0 fancy-splash-delay
1241 #'fancy-splash-screens-1
1242 splash-buffer))
1243 (recursive-edit))
1244 (cancel-timer timer)
1245 (setq display-hourglass old-hourglass
1246 minor-mode-map-alist old-minor-mode-map-alist)
1247 (kill-buffer splash-buffer))))))
1249 (defun fancy-splash-frame ()
1250 "Return the frame to use for the fancy splash screen.
1251 Returning non-nil does not mean we should necessarily
1252 use the fancy splash screen, but if we do use it,
1253 we put it on this frame."
1254 (let (chosen-frame)
1255 (dolist (frame (append (frame-list) (list (selected-frame))))
1256 (if (and (frame-visible-p frame)
1257 (not (window-minibuffer-p (frame-selected-window frame))))
1258 (setq chosen-frame frame)))
1259 chosen-frame))
1261 (defun use-fancy-splash-screens-p ()
1262 "Return t if fancy splash screens should be used."
1263 (when (and (display-graphic-p)
1264 (or (and (display-color-p)
1265 (image-type-available-p 'xpm))
1266 (image-type-available-p 'pbm)))
1267 (let ((frame (fancy-splash-frame)))
1268 (when frame
1269 (let* ((img (create-image (or fancy-splash-image
1270 (if (and (display-color-p)
1271 (image-type-available-p 'xpm))
1272 "splash.xpm" "splash.pbm"))))
1273 (image-height (and img (cdr (image-size img))))
1274 (window-height (1- (window-height (frame-selected-window frame)))))
1275 (> window-height (+ image-height 19)))))))
1278 (defun normal-splash-screen ()
1279 "Display splash screen when Emacs starts."
1280 (let ((prev-buffer (current-buffer)))
1281 (unwind-protect
1282 (with-current-buffer (get-buffer-create "GNU Emacs")
1283 (let ((tab-width 8)
1284 (mode-line-format (propertize "---- %b %-"
1285 'face '(:weight bold))))
1287 (if pure-space-overflow
1288 (insert "Warning Warning Pure space overflow Warning Warning\n"))
1290 ;; The convention for this piece of code is that
1291 ;; each piece of output starts with one or two newlines
1292 ;; and does not end with any newlines.
1293 (insert "Welcome to GNU Emacs")
1294 (insert
1295 (if (eq system-type 'gnu/linux)
1296 ", one component of the GNU/Linux operating system.\n"
1297 ", a part of the GNU operating system.\n"))
1299 (unless (equal (buffer-name prev-buffer) "*scratch*")
1300 (insert (substitute-command-keys
1301 "\nType \\[recenter] to begin editing your file.\n")))
1303 (if (display-mouse-p)
1304 ;; The user can use the mouse to activate menus
1305 ;; so give help in terms of menu items.
1306 (progn
1307 (insert "\
1308 You can do basic editing with the menu bar and scroll bar using the mouse.
1310 Useful File menu items:
1311 Exit Emacs (or type Control-x followed by Control-c)
1312 Recover Session recover files you were editing before a crash
1314 Important Help menu items:
1315 Emacs Tutorial Learn-by-doing tutorial for using Emacs efficiently.
1316 Emacs FAQ Frequently asked questions and answers
1317 Read the Emacs Manual View the Emacs manual using Info
1318 \(Non)Warranty GNU Emacs comes with ABSOLUTELY NO WARRANTY
1319 Copying Conditions Conditions for redistributing and changing Emacs.
1320 Getting New Versions How to obtain the latest version of Emacs.
1321 More Manuals / Ordering Manuals How to order printed manuals from the FSF.
1323 (insert "\n\n" (emacs-version)
1325 Copyright (C) 2002 Free Software Foundation, Inc."))
1327 ;; No mouse menus, so give help using kbd commands.
1329 ;; If keys have their default meanings,
1330 ;; use precomputed string to save lots of time.
1331 (if (and (eq (key-binding "\C-h") 'help-command)
1332 (eq (key-binding "\C-xu") 'advertised-undo)
1333 (eq (key-binding "\C-x\C-c") 'save-buffers-kill-emacs)
1334 (eq (key-binding "\C-ht") 'help-with-tutorial)
1335 (eq (key-binding "\C-hi") 'info)
1336 (eq (key-binding "\C-hr") 'info-emacs-manual)
1337 (eq (key-binding "\C-h\C-n") 'view-emacs-news))
1338 (insert "
1339 Get help C-h (Hold down CTRL and press h)
1340 Emacs manual C-h r
1341 Emacs tutorial C-h t Undo changes C-x u
1342 Buy manuals C-h C-m Exit Emacs C-x C-c
1343 Browse manuals C-h i")
1345 (insert (substitute-command-keys
1346 (format "\n
1347 Get help %s
1348 Emacs manual \\[info-emacs-manual]
1349 Emacs tutorial \\[help-with-tutorial]\tUndo changes\t\\[advertised-undo]
1350 Buy manuals \\[view-order-manuals]\tExit Emacs\t\\[save-buffers-kill-emacs]
1351 Browse manuals \\[info]"
1352 (let ((where (where-is-internal
1353 'help-command nil t)))
1354 (if where
1355 (key-description where)
1356 "M-x help"))))))
1358 ;; Say how to use the menu bar with the keyboard.
1359 (if (and (eq (key-binding "\M-`") 'tmm-menubar)
1360 (eq (key-binding [f10]) 'tmm-menubar))
1361 (insert "
1362 Activate menubar F10 or ESC ` or M-`")
1363 (insert (substitute-command-keys "
1364 Activate menubar \\[tmm-menubar]")))
1366 ;; Many users seem to have problems with these.
1367 (insert "
1368 \(`C-' means use the CTRL key. `M-' means use the Meta (or Alt) key.
1369 If you have no Meta key, you may instead type ESC followed by the character.)")
1371 (insert "\n\n" (emacs-version)
1373 Copyright (C) 2002 Free Software Foundation, Inc.")
1375 (if (and (eq (key-binding "\C-h\C-c") 'describe-copying)
1376 (eq (key-binding "\C-h\C-d") 'describe-distribution)
1377 (eq (key-binding "\C-h\C-w") 'describe-no-warranty))
1378 (insert
1380 GNU Emacs comes with ABSOLUTELY NO WARRANTY; type C-h C-w for full details.
1381 Emacs is Free Software--Free as in Freedom--so you can redistribute copies
1382 of Emacs and modify it; type C-h C-c to see the conditions.
1383 Type C-h C-d for information on getting the latest version.")
1384 (insert (substitute-command-keys
1386 GNU Emacs comes with ABSOLUTELY NO WARRANTY; type \\[describe-no-warranty] for full details.
1387 Emacs is Free Software--Free as in Freedom--so you can redistribute copies
1388 of Emacs and modify it; type \\[describe-copying] to see the conditions.
1389 Type \\[describe-distribution] for information on getting the latest version."))))
1391 ;; The rest of the startup screen is the same on all
1392 ;; kinds of terminals.
1394 ;; Give information on recovering, if there was a crash.
1395 (and auto-save-list-file-prefix
1396 ;; Don't signal an error if the
1397 ;; directory for auto-save-list files
1398 ;; does not yet exist.
1399 (file-directory-p (file-name-directory
1400 auto-save-list-file-prefix))
1401 (directory-files
1402 (file-name-directory auto-save-list-file-prefix)
1404 (concat "\\`"
1405 (regexp-quote (file-name-nondirectory
1406 auto-save-list-file-prefix)))
1408 (insert "\n\nIf an Emacs session crashed recently, "
1409 "type M-x recover-session RET\nto recover"
1410 " the files you were editing."))
1412 ;; Display the input that we set up in the buffer.
1413 (set-buffer-modified-p nil)
1414 (goto-char (point-min))
1415 (save-window-excursion
1416 (switch-to-buffer (current-buffer))
1417 (sit-for 120))))
1418 ;; Unwind ... ensure splash buffer is killed
1419 (kill-buffer "GNU Emacs"))))
1422 (defun startup-echo-area-message ()
1423 (if (eq (key-binding "\C-h\C-p") 'describe-project)
1424 "For information about the GNU Project and its goals, type C-h C-p."
1425 (substitute-command-keys
1426 "For information about the GNU Project and its goals, type \
1427 \\[describe-project].")))
1430 (defun display-startup-echo-area-message ()
1431 (let ((resize-mini-windows t))
1432 (message (startup-echo-area-message))))
1435 (defun display-splash-screen ()
1436 "Display splash screen according to display.
1437 Fancy splash screens are used on graphic displays,
1438 normal otherwise."
1439 (interactive)
1440 (if (use-fancy-splash-screens-p)
1441 (fancy-splash-screens)
1442 (normal-splash-screen)))
1445 (defun command-line-1 (command-line-args-left)
1446 (or noninteractive (input-pending-p) init-file-had-error
1447 ;; t if the init file says to inhibit the echo area startup message.
1448 (and inhibit-startup-echo-area-message
1449 user-init-file
1450 (or (and (get 'inhibit-startup-echo-area-message 'saved-value)
1451 (equal inhibit-startup-echo-area-message
1452 (if (equal init-file-user "")
1453 (user-login-name)
1454 init-file-user)))
1455 ;; Wasn't set with custom; see if .emacs has a setq.
1456 (let ((buffer (get-buffer-create " *temp*")))
1457 (prog1
1458 (condition-case nil
1459 (save-excursion
1460 (set-buffer buffer)
1461 (insert-file-contents user-init-file)
1462 (re-search-forward
1463 (concat
1464 "([ \t\n]*setq[ \t\n]+"
1465 "inhibit-startup-echo-area-message[ \t\n]+"
1466 (regexp-quote
1467 (prin1-to-string
1468 (if (equal init-file-user "")
1469 (user-login-name)
1470 init-file-user)))
1471 "[ \t\n]*)")
1472 nil t))
1473 (error nil))
1474 (kill-buffer buffer)))))
1475 ;; Stop any "Loading image..." message hiding echo-area-message.
1476 (use-fancy-splash-screens-p)
1477 (display-startup-echo-area-message))
1479 ;; Delay 2 seconds after an init file error message
1480 ;; was displayed, so user can read it.
1481 (when init-file-had-error
1482 (sit-for 2))
1484 (when command-line-args-left
1485 ;; We have command args; process them.
1486 (let ((dir command-line-default-directory)
1487 (file-count 0)
1488 first-file-buffer
1490 ;; The directories listed in --directory/-L options will *appear*
1491 ;; at the front of `load-path' in the order they appear on the
1492 ;; command-line. We cannot do this by *placing* them at the front
1493 ;; in the order they appear, so we need this variable to hold them,
1494 ;; temporarily.
1495 extra-load-path
1496 just-files ;; t if this follows the magic -- option.
1497 ;; This includes our standard options' long versions
1498 ;; and long versions of what's on command-switch-alist.
1499 (longopts
1500 (append '(("--funcall") ("--load") ("--insert") ("--kill")
1501 ("--directory") ("--eval") ("--execute") ("--no-splash")
1502 ("--find-file") ("--visit") ("--file"))
1503 (mapcar (lambda (elt)
1504 (list (concat "-" (car elt))))
1505 command-switch-alist)))
1506 (line 0)
1507 (column 0))
1509 ;; Add the long X options to longopts.
1510 (dolist (tem command-line-x-option-alist)
1511 (if (string-match "^--" (car tem))
1512 (push (list (car tem)) longopts)))
1514 ;; Loop, processing options.
1515 (while command-line-args-left
1516 (let* ((argi (car command-line-args-left))
1517 (orig-argi argi)
1518 argval completion)
1519 (setq command-line-args-left (cdr command-line-args-left))
1521 ;; Do preliminary decoding of the option.
1522 (if just-files
1523 ;; After --, don't look for options; treat all args as files.
1524 (setq argi "")
1525 ;; Convert long options to ordinary options
1526 ;; and separate out an attached option argument into argval.
1527 (when (string-match "^\\(--[^=]*\\)=" argi)
1528 (setq argval (substring argi (match-end 0))
1529 argi (match-string 1 argi)))
1530 (if (equal argi "--")
1531 (setq completion nil)
1532 (setq completion (try-completion argi longopts)))
1533 (if (eq completion t)
1534 (setq argi (substring argi 1))
1535 (if (stringp completion)
1536 (let ((elt (assoc completion longopts)))
1537 (or elt
1538 (error "Option `%s' is ambiguous" argi))
1539 (setq argi (substring (car elt) 1)))
1540 (setq argval nil
1541 argi orig-argi))))
1543 ;; Execute the option.
1544 (cond ((setq tem (assoc argi command-switch-alist))
1545 (if argval
1546 (let ((command-line-args-left
1547 (cons argval command-line-args-left)))
1548 (funcall (cdr tem) argi))
1549 (funcall (cdr tem) argi)))
1551 ((equal argi "-no-splash")
1552 (setq inhibit-startup-message t))
1554 ((member argi '("-f" ; what the manual claims
1555 "-funcall"
1556 "-e")) ; what the source used to say
1557 (setq tem (intern (or argval (pop command-line-args-left))))
1558 (if (commandp tem)
1559 (command-execute tem)
1560 (funcall tem)))
1562 ((member argi '("-eval" "-execute"))
1563 (eval (read (or argval (pop command-line-args-left)))))
1564 ;; Set the default directory as specified in -L.
1566 ((member argi '("-L" "-directory"))
1567 (setq tem (or argval (pop command-line-args-left)))
1568 ;; We will reverse `extra-load-path' and prepend it to
1569 ;; `load-path' after all the arguments have been processed.
1570 (push
1571 (expand-file-name (command-line-normalize-file-name tem))
1572 extra-load-path))
1574 ((member argi '("-l" "-load"))
1575 (let* ((file (command-line-normalize-file-name
1576 (or argval (pop command-line-args-left))))
1577 ;; Take file from default dir if it exists there;
1578 ;; otherwise let `load' search for it.
1579 (file-ex (expand-file-name file)))
1580 (when (file-exists-p file-ex)
1581 (setq file file-ex))
1582 (load file nil t)))
1584 ((equal argi "-insert")
1585 (setq tem (or argval (pop command-line-args-left)))
1586 (or (stringp tem)
1587 (error "File name omitted from `-insert' option"))
1588 (insert-file-contents (command-line-normalize-file-name tem)))
1590 ((equal argi "-kill")
1591 (kill-emacs t))
1593 ((string-match "^\\+[0-9]+\\'" argi)
1594 (setq line (string-to-int argi)))
1596 ((string-match "^\\+\\([0-9]+\\):\\([0-9]+\\)\\'" argi)
1597 (setq line (string-to-int (match-string 1 argi))
1598 column (string-to-int (match-string 2 argi))))
1600 ((setq tem (assoc argi command-line-x-option-alist))
1601 ;; Ignore X-windows options and their args if not using X.
1602 (setq command-line-args-left
1603 (nthcdr (nth 1 tem) command-line-args-left)))
1605 ((member argi '("-find-file" "-file" "-visit"))
1606 ;; An explicit option to specify visiting a file.
1607 (setq tem (or argval (pop command-line-args-left)))
1608 (unless (stringp tem)
1609 (error "File name omitted from `%s' option" argi))
1610 (setq file-count (1+ file-count))
1611 (let ((file (expand-file-name
1612 (command-line-normalize-file-name tem) dir)))
1613 (if (= file-count 1)
1614 (setq first-file-buffer (find-file file))
1615 (find-file-other-window file)))
1616 (or (zerop line)
1617 (goto-line line))
1618 (setq line 0)
1619 (unless (< column 1)
1620 (move-to-column (1- column)))
1621 (setq column 0))
1623 ((equal argi "--")
1624 (setq just-files t))
1626 ;; We have almost exhausted our options. See if the
1627 ;; user has made any other command-line options available
1628 (let ((hooks command-line-functions) ;; lrs 7/31/89
1629 (did-hook nil))
1630 (while (and hooks
1631 (not (setq did-hook (funcall (car hooks)))))
1632 (setq hooks (cdr hooks)))
1633 (if (not did-hook)
1634 ;; Presume that the argument is a file name.
1635 (progn
1636 (if (string-match "\\`-" argi)
1637 (error "Unknown option `%s'" argi))
1638 (setq file-count (1+ file-count))
1639 (let ((file
1640 (expand-file-name
1641 (command-line-normalize-file-name orig-argi)
1642 dir)))
1643 (if (= file-count 1)
1644 (setq first-file-buffer (find-file file))
1645 (find-file-other-window file)))
1646 (or (zerop line)
1647 (goto-line line))
1648 (setq line 0)
1649 (unless (< column 1)
1650 (move-to-column (1- column)))
1651 (setq column 0))))))))
1653 ;; See --directory/-L option above.
1654 (when extra-load-path
1655 (setq load-path (append (nreverse extra-load-path) load-path)))
1657 ;; If 3 or more files visited, and not all visible,
1658 ;; show user what they all are. But leave the last one current.
1659 (and (> file-count 2)
1660 (not noninteractive)
1661 (not inhibit-startup-buffer-menu)
1662 (or (get-buffer-window first-file-buffer)
1663 (list-buffers)))))
1665 ;; Maybe display a startup screen.
1666 (unless (or inhibit-startup-message
1667 noninteractive
1668 emacs-quick-startup
1669 ;; Don't display startup screen if init file
1670 ;; has started some sort of server.
1671 (and (fboundp 'process-list)
1672 (process-list)))
1673 ;; Display a startup screen, after some preparations.
1675 ;; If there are no switches to process, we might as well
1676 ;; run this hook now, and there may be some need to do it
1677 ;; before doing any output.
1678 (run-hooks 'emacs-startup-hook)
1679 (and term-setup-hook
1680 (run-hooks 'term-setup-hook))
1681 (setq inhibit-startup-hooks t)
1683 ;; It's important to notice the user settings before we
1684 ;; display the startup message; otherwise, the settings
1685 ;; won't take effect until the user gives the first
1686 ;; keystroke, and that's distracting.
1687 (when (fboundp 'frame-notice-user-settings)
1688 (frame-notice-user-settings))
1690 ;; If there are no switches to process, we might as well
1691 ;; run this hook now, and there may be some need to do it
1692 ;; before doing any output.
1693 (when window-setup-hook
1694 (run-hooks 'window-setup-hook)
1695 ;; Don't let the hook be run twice.
1696 (setq window-setup-hook nil))
1698 ;; Do this now to avoid an annoying delay if the user
1699 ;; clicks the menu bar during the sit-for.
1700 (when (display-popup-menus-p)
1701 (precompute-menubar-bindings))
1702 (with-no-warnings
1703 (setq menubar-bindings-done t))
1705 ;; If *scratch* is selected and it is empty, insert an
1706 ;; initial message saying not to create a file there.
1707 (when (and initial-scratch-message
1708 (equal (buffer-name) "*scratch*")
1709 (= 0 (buffer-size)))
1710 (insert initial-scratch-message)
1711 (set-buffer-modified-p nil))
1713 ;; If user typed input during all that work,
1714 ;; abort the startup screen. Otherwise, display it now.
1715 (unless (input-pending-p)
1716 (display-splash-screen))))
1719 (defun command-line-normalize-file-name (file)
1720 "Collapse multiple slashes to one, to handle non-Emacs file names."
1721 (save-match-data
1722 ;; Use arg 1 so that we don't collapse // at the start of the file name.
1723 ;; That is significant on some systems.
1724 ;; However, /// at the beginning is supposed to mean just /, not //.
1725 (if (string-match "^///+" file)
1726 (setq file (replace-match "/" t t file)))
1727 (while (string-match "//+" file 1)
1728 (setq file (replace-match "/" t t file)))
1729 file))
1731 ;;; arch-tag: 7e294698-244d-4758-984b-4047f887a5db
1732 ;;; startup.el ends here