* fileio.c (Fverify_visited_file_modtime): Don't read uninitialized st.st_size.
[emacs.git] / lisp / startup.el
blob2e8b6b7f8c4c21d1398f1103b27e3278d02422b7
1 ;;; startup.el --- process Emacs shell arguments -*- lexical-binding: t -*-
3 ;; Copyright (C) 1985-1986, 1992, 1994-2012 Free Software Foundation, Inc.
5 ;; Maintainer: FSF
6 ;; Keywords: internal
7 ;; Package: emacs
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 3 of the License, or
14 ;; (at your option) 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. If not, see <http://www.gnu.org/licenses/>.
24 ;;; Commentary:
26 ;; This file parses the command line and gets Emacs running. Options
27 ;; on the command line are handled in precedence order. For priorities
28 ;; see the structure standard_args in the emacs.c file.
30 ;;; Code:
32 (setq top-level '(normal-top-level))
34 (defvar command-line-processed nil
35 "Non-nil once command line has been processed.")
37 (defgroup initialization nil
38 "Emacs start-up procedure."
39 :group 'environment)
41 (defcustom initial-buffer-choice nil
42 "Buffer to show after starting Emacs.
43 If the value is nil and `inhibit-startup-screen' is nil, show the
44 startup screen. If the value is a string, visit the specified file
45 or directory using `find-file'. If t, open the `*scratch*'
46 buffer.
48 A string value also causes emacsclient to open the specified file
49 or directory when no target file is specified."
50 :type '(choice
51 (const :tag "Startup screen" nil)
52 (directory :tag "Directory" :value "~/")
53 (file :tag "File" :value "~/.emacs")
54 (const :tag "Lisp scratch buffer" t))
55 :version "23.1"
56 :group 'initialization)
58 (defcustom inhibit-startup-screen nil
59 "Non-nil inhibits the startup screen.
61 This is for use in your personal init file (but NOT site-start.el),
62 once you are familiar with the contents of the startup screen."
63 :type 'boolean
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 ;; FIXME? Why does this get such weirdly extreme treatment, when the
72 ;; more important inhibit-startup-screen does not.
73 (defcustom inhibit-startup-echo-area-message nil
74 "Non-nil inhibits the initial startup echo area message.
75 Setting this variable takes effect
76 only if you do it with the customization buffer
77 or if your init file contains a line of this form:
78 (setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\")
79 If your init file is byte-compiled, use the following form
80 instead:
81 (eval '(setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\"))
82 Thus, someone else using a copy of your init file will see the
83 startup message unless he personally acts to inhibit it."
84 :type '(choice (const :tag "Don't inhibit")
85 (string :tag "Enter your user name, to inhibit"))
86 :group 'initialization)
88 (defcustom inhibit-default-init nil
89 "Non-nil inhibits loading the `default' library."
90 :type 'boolean
91 :group 'initialization)
93 (defcustom inhibit-startup-buffer-menu nil
94 "Non-nil inhibits display of buffer list when more than 2 files are loaded."
95 :type 'boolean
96 :group 'initialization)
98 (defvar command-switch-alist nil
99 "Alist of command-line switches.
100 Elements look like (SWITCH-STRING . HANDLER-FUNCTION).
101 HANDLER-FUNCTION receives the switch string as its sole argument;
102 the remaining command-line args are in the variable `command-line-args-left'.")
104 (defvar command-line-args-left nil
105 "List of command-line args not yet processed.")
107 (defvaralias 'argv 'command-line-args-left
108 "List of command-line args not yet processed.
109 This is a convenience alias, so that one can write \(pop argv\)
110 inside of --eval command line arguments in order to access
111 following arguments.")
112 (internal-make-var-non-special 'argv)
114 (defvar argi nil
115 "Current command-line argument.")
116 (internal-make-var-non-special 'argi)
118 (defvar command-line-functions nil ;; lrs 7/31/89
119 "List of functions to process unrecognized command-line arguments.
120 Each function should access the dynamically bound variables
121 `argi' (the current argument) and `command-line-args-left' (the remaining
122 arguments). The function should return non-nil only if it recognizes and
123 processes `argi'. If it does so, it may consume successive arguments by
124 altering `command-line-args-left' to remove them.")
126 (defvar command-line-default-directory nil
127 "Default directory to use for command line arguments.
128 This is normally copied from `default-directory' when Emacs starts.")
130 ;; This is here, rather than in x-win.el, so that we can ignore these
131 ;; options when we are not using X.
132 (defconst command-line-x-option-alist
133 '(("-bw" 1 x-handle-numeric-switch border-width)
134 ("-d" 1 x-handle-display)
135 ("-display" 1 x-handle-display)
136 ("-name" 1 x-handle-name-switch)
137 ("-title" 1 x-handle-switch title)
138 ("-T" 1 x-handle-switch title)
139 ("-r" 0 x-handle-switch reverse t)
140 ("-rv" 0 x-handle-switch reverse t)
141 ("-reverse" 0 x-handle-switch reverse t)
142 ("-reverse-video" 0 x-handle-switch reverse t)
143 ("-fn" 1 x-handle-switch font)
144 ("-font" 1 x-handle-switch font)
145 ("-fs" 0 x-handle-initial-switch fullscreen fullboth)
146 ("-fw" 0 x-handle-initial-switch fullscreen fullwidth)
147 ("-fh" 0 x-handle-initial-switch fullscreen fullheight)
148 ("-mm" 0 x-handle-initial-switch fullscreen maximized)
149 ("-ib" 1 x-handle-numeric-switch internal-border-width)
150 ("-g" 1 x-handle-geometry)
151 ("-lsp" 1 x-handle-numeric-switch line-spacing)
152 ("-geometry" 1 x-handle-geometry)
153 ("-fg" 1 x-handle-switch foreground-color)
154 ("-foreground" 1 x-handle-switch foreground-color)
155 ("-bg" 1 x-handle-switch background-color)
156 ("-background" 1 x-handle-switch background-color)
157 ("-ms" 1 x-handle-switch mouse-color)
158 ("-nbi" 0 x-handle-switch icon-type nil)
159 ("-iconic" 0 x-handle-iconic)
160 ("-xrm" 1 x-handle-xrm-switch)
161 ("-cr" 1 x-handle-switch cursor-color)
162 ("-vb" 0 x-handle-switch vertical-scroll-bars t)
163 ("-hb" 0 x-handle-switch horizontal-scroll-bars t)
164 ("-bd" 1 x-handle-switch)
165 ("--border-width" 1 x-handle-numeric-switch border-width)
166 ("--display" 1 x-handle-display)
167 ("--name" 1 x-handle-name-switch)
168 ("--title" 1 x-handle-switch title)
169 ("--reverse-video" 0 x-handle-switch reverse t)
170 ("--font" 1 x-handle-switch font)
171 ("--fullscreen" 0 x-handle-initial-switch fullscreen fullboth)
172 ("--fullwidth" 0 x-handle-initial-switch fullscreen fullwidth)
173 ("--fullheight" 0 x-handle-initial-switch fullscreen fullheight)
174 ("--maximized" 0 x-handle-initial-switch fullscreen maximized)
175 ("--internal-border" 1 x-handle-numeric-switch internal-border-width)
176 ("--geometry" 1 x-handle-geometry)
177 ("--foreground-color" 1 x-handle-switch foreground-color)
178 ("--background-color" 1 x-handle-switch background-color)
179 ("--mouse-color" 1 x-handle-switch mouse-color)
180 ("--no-bitmap-icon" 0 x-handle-no-bitmap-icon)
181 ("--iconic" 0 x-handle-iconic)
182 ("--xrm" 1 x-handle-xrm-switch)
183 ("--cursor-color" 1 x-handle-switch cursor-color)
184 ("--vertical-scroll-bars" 0 x-handle-switch vertical-scroll-bars t)
185 ("--line-spacing" 1 x-handle-numeric-switch line-spacing)
186 ("--border-color" 1 x-handle-switch border-color)
187 ("--smid" 1 x-handle-smid)
188 ("--parent-id" 1 x-handle-parent-id))
189 "Alist of X Windows options.
190 Each element has the form
191 (NAME NUMARGS HANDLER FRAME-PARAM VALUE)
192 where NAME is the option name string, NUMARGS is the number of arguments
193 that the option accepts, HANDLER is a function to call to handle the option.
194 FRAME-PARAM (optional) is the frame parameter this option specifies,
195 and VALUE is the value which is given to that frame parameter
196 \(most options use the argument for this, so VALUE is not present).")
198 (defconst command-line-ns-option-alist
199 '(("-NSAutoLaunch" 1 ns-ignore-1-arg)
200 ("-NXAutoLaunch" 1 ns-ignore-1-arg)
201 ("-macosx" 0 ignore)
202 ("-NSHost" 1 ns-ignore-1-arg)
203 ("-_NSMachLaunch" 1 ns-ignore-1-arg)
204 ("-MachLaunch" 1 ns-ignore-1-arg)
205 ("-NXOpen" 1 ns-ignore-1-arg)
206 ("-NSOpen" 1 ns-handle-nxopen)
207 ("-NXOpenTemp" 1 ns-ignore-1-arg)
208 ("-NSOpenTemp" 1 ns-handle-nxopentemp)
209 ("-GSFilePath" 1 ns-handle-nxopen)
210 ;;("-bw" . x-handle-numeric-switch)
211 ;;("-d" . x-handle-display)
212 ;;("-display" . x-handle-display)
213 ("-name" 1 x-handle-name-switch)
214 ("-title" 1 x-handle-switch title)
215 ("-T" 1 x-handle-switch title)
216 ("-r" 0 x-handle-switch reverse t)
217 ("-rv" 0 x-handle-switch reverse t)
218 ("-reverse" 0 x-handle-switch reverse t)
219 ("-fn" 1 x-handle-switch font)
220 ("-font" 1 x-handle-switch font)
221 ("-ib" 1 x-handle-numeric-switch internal-border-width)
222 ("-g" 1 x-handle-geometry)
223 ("-geometry" 1 x-handle-geometry)
224 ("-fg" 1 x-handle-switch foreground-color)
225 ("-foreground" 1 x-handle-switch foreground-color)
226 ("-bg" 1 x-handle-switch background-color)
227 ("-background" 1 x-handle-switch background-color)
228 ; ("-ms" 1 x-handle-switch mouse-color)
229 ("-itype" 0 x-handle-switch icon-type t)
230 ("-i" 0 x-handle-switch icon-type t)
231 ("-iconic" 0 x-handle-iconic icon-type t)
232 ;;("-xrm" . x-handle-xrm-switch)
233 ("-cr" 1 x-handle-switch cursor-color)
234 ("-vb" 0 x-handle-switch vertical-scroll-bars t)
235 ("-hb" 0 x-handle-switch horizontal-scroll-bars t)
236 ("-bd" 1 x-handle-switch)
237 ;; ("--border-width" 1 x-handle-numeric-switch border-width)
238 ;; ("--display" 1 ns-handle-display)
239 ("--name" 1 x-handle-name-switch)
240 ("--title" 1 x-handle-switch title)
241 ("--reverse-video" 0 x-handle-switch reverse t)
242 ("--font" 1 x-handle-switch font)
243 ("--internal-border" 1 x-handle-numeric-switch internal-border-width)
244 ;; ("--geometry" 1 ns-handle-geometry)
245 ("--foreground-color" 1 x-handle-switch foreground-color)
246 ("--background-color" 1 x-handle-switch background-color)
247 ("--mouse-color" 1 x-handle-switch mouse-color)
248 ("--icon-type" 0 x-handle-switch icon-type t)
249 ("--iconic" 0 x-handle-iconic)
250 ;; ("--xrm" 1 ns-handle-xrm-switch)
251 ("--cursor-color" 1 x-handle-switch cursor-color)
252 ("--vertical-scroll-bars" 0 x-handle-switch vertical-scroll-bars t)
253 ("--border-color" 1 x-handle-switch border-width))
254 "Alist of NS options.
255 Each element has the form
256 (NAME NUMARGS HANDLER FRAME-PARAM VALUE)
257 where NAME is the option name string, NUMARGS is the number of arguments
258 that the option accepts, HANDLER is a function to call to handle the option.
259 FRAME-PARAM (optional) is the frame parameter this option specifies,
260 and VALUE is the value which is given to that frame parameter
261 \(most options use the argument for this, so VALUE is not present).")
264 (defvar before-init-hook nil
265 "Normal hook run after handling urgent options but before loading init files.")
267 (defvar after-init-hook nil
268 "Normal hook run after initializing the Emacs session.
269 It is run after Emacs loads the init file, `default' library, the
270 abbrevs file, and additional Lisp packages (if any), and setting
271 the value of `after-init-time'.
273 There is no `condition-case' around the running of this hook;
274 therefore, if `debug-on-error' is non-nil, an error in one of
275 these functions will invoke the debugger.")
277 (defvar emacs-startup-hook nil
278 "Normal hook run after loading init files and handling the command line.")
280 (defvar term-setup-hook nil
281 "Normal hook run after loading terminal-specific Lisp code.
282 It also follows `emacs-startup-hook'. This hook exists for users to set,
283 so as to override the definitions made by the terminal-specific file.
284 Emacs never sets this variable itself.")
286 (defvar inhibit-startup-hooks nil
287 "Non-nil means don't run `term-setup-hook' and `emacs-startup-hook'.
288 This is because we already did so.")
290 (defvar keyboard-type nil
291 "The brand of keyboard you are using.
292 This variable is used to define the proper function and keypad
293 keys for use under X. It is used in a fashion analogous to the
294 environment variable TERM.")
296 (defvar window-setup-hook nil
297 "Normal hook run to initialize window system display.
298 Emacs runs this hook after processing the command line arguments and loading
299 the user's init file.")
301 (defcustom initial-major-mode 'lisp-interaction-mode
302 "Major mode command symbol to use for the initial `*scratch*' buffer."
303 :type 'function
304 :group 'initialization)
306 (defvar init-file-user nil
307 "Identity of user whose init file is or was read.
308 The value is nil if `-q' or `--no-init-file' was specified,
309 meaning do not load any init file.
311 Otherwise, the value may be an empty string, meaning
312 use the init file for the user who originally logged in,
313 or it may be a string containing a user's name meaning
314 use that person's init file.
316 In either of the latter cases, `(concat \"~\" init-file-user \"/\")'
317 evaluates to the name of the directory where the init file was
318 looked for.
320 Setting `init-file-user' does not prevent Emacs from loading
321 `site-start.el'. The only way to do that is to use `--no-site-file'.")
323 (defcustom site-run-file (purecopy "site-start")
324 "File containing site-wide run-time initializations.
325 This file is loaded at run-time before `~/.emacs'. It contains inits
326 that need to be in place for the entire site, but which, due to their
327 higher incidence of change, don't make sense to load into Emacs's
328 dumped image. Thus, the run-time load order is: 1. file described in
329 this variable, if non-nil; 2. `~/.emacs'; 3. `default.el'.
331 Don't use the `site-start.el' file for things some users may not like.
332 Put them in `default.el' instead, so that users can more easily
333 override them. Users can prevent loading `default.el' with the `-q'
334 option or by setting `inhibit-default-init' in their own init files,
335 but inhibiting `site-start.el' requires `--no-site-file', which
336 is less convenient.
338 This variable is defined for customization so as to make
339 it visible in the relevant context. However, actually customizing it
340 is not allowed, since it would not work anyway. The only way to set
341 this variable usefully is to set it while building and dumping Emacs."
342 :type '(choice (const :tag "none" nil) string)
343 :group 'initialization
344 :initialize 'custom-initialize-default
345 :set (lambda (_variable _value)
346 (error "Customizing `site-run-file' does not work")))
348 (defcustom mail-host-address nil
349 "Name of this machine, for purposes of naming users.
350 If non-nil, Emacs uses this instead of `system-name' when constructing
351 email addresses."
352 :type '(choice (const nil) string)
353 :group 'mail)
355 (defcustom user-mail-address (if command-line-processed
356 (or (getenv "EMAIL")
357 (concat (user-login-name) "@"
358 (or mail-host-address
359 (system-name))))
360 ;; Empty string means "not set yet".
362 "Full mailing address of this user.
363 This is initialized with environment variable `EMAIL' or, as a
364 fallback, using `mail-host-address'. This is done after your
365 init file is read, in case it sets `mail-host-address'."
366 :type 'string
367 :group 'mail)
369 (defcustom auto-save-list-file-prefix
370 (cond ((eq system-type 'ms-dos)
371 ;; MS-DOS cannot have initial dot, and allows only 8.3 names
372 (concat user-emacs-directory "auto-save.list/_s"))
374 (concat user-emacs-directory "auto-save-list/.saves-")))
375 "Prefix for generating `auto-save-list-file-name'.
376 This is used after reading your init file to initialize
377 `auto-save-list-file-name', by appending Emacs's pid and the system name,
378 if you have not already set `auto-save-list-file-name' yourself.
379 Directories in the prefix will be created if necessary.
380 Set this to nil if you want to prevent `auto-save-list-file-name'
381 from being initialized."
382 :type '(choice (const :tag "Don't record a session's auto save list" nil)
383 string)
384 :group 'auto-save)
386 (defvar emacs-basic-display nil)
388 (defvar init-file-debug nil)
390 (defvar init-file-had-error nil
391 "Non-nil if there was an error loading the user's init file.")
393 (defvar normal-top-level-add-subdirs-inode-list nil)
395 (defvar no-blinking-cursor nil)
397 (defvar default-frame-background-mode)
399 (defvar pure-space-overflow nil
400 "Non-nil if building Emacs overflowed pure space.")
402 (defvar pure-space-overflow-message (purecopy "\
403 Warning Warning!!! Pure space overflow !!!Warning Warning
404 \(See the node Pure Storage in the Lisp manual for details.)\n"))
406 (defcustom tutorial-directory
407 (file-name-as-directory (expand-file-name "tutorials" data-directory))
408 "Directory containing the Emacs TUTORIAL files."
409 :group 'installation
410 :type 'directory
411 :initialize 'custom-initialize-delay)
413 (defconst package-subdirectory-regexp
414 "\\([^.].*?\\)-\\([0-9]+\\(?:[.][0-9]+\\|\\(?:pre\\|beta\\|alpha\\)[0-9]+\\)*\\)"
415 "Regular expression matching the name of a package subdirectory.
416 The first subexpression is the package name.
417 The second subexpression is the version string.
419 The regexp should not contain a starting \"\\`\" or a trailing
420 \"\\'\"; those are added automatically by callers.")
422 (defun normal-top-level-add-subdirs-to-load-path ()
423 "Add all subdirectories of `default-directory' to `load-path'.
424 More precisely, this uses only the subdirectories whose names
425 start with letters or digits; it excludes any subdirectory named `RCS'
426 or `CVS', and any subdirectory that contains a file named `.nosearch'."
427 (let (dirs
428 attrs
429 (pending (list default-directory)))
430 ;; This loop does a breadth-first tree walk on DIR's subtree,
431 ;; putting each subdir into DIRS as its contents are examined.
432 (while pending
433 (push (pop pending) dirs)
434 (let* ((this-dir (car dirs))
435 (contents (directory-files this-dir))
436 (default-directory this-dir)
437 (canonicalized (if (fboundp 'untranslated-canonical-name)
438 (untranslated-canonical-name this-dir))))
439 ;; The Windows version doesn't report meaningful inode numbers, so
440 ;; use the canonicalized absolute file name of the directory instead.
441 (setq attrs (or canonicalized
442 (nthcdr 10 (file-attributes this-dir))))
443 (unless (member attrs normal-top-level-add-subdirs-inode-list)
444 (push attrs normal-top-level-add-subdirs-inode-list)
445 (dolist (file contents)
446 (and (string-match "\\`[[:alnum:]]" file)
447 ;; The lower-case variants of RCS and CVS are for DOS/Windows.
448 (not (member file '("RCS" "CVS" "rcs" "cvs")))
449 ;; Avoid doing a `stat' when it isn't necessary because
450 ;; that can cause trouble when an NFS server is down.
451 (not (string-match "\\.elc?\\'" file))
452 (file-directory-p file)
453 (let ((expanded (expand-file-name file)))
454 (or (file-exists-p (expand-file-name ".nosearch" expanded))
455 (setq pending (nconc pending (list expanded))))))))))
456 (normal-top-level-add-to-load-path (cdr (nreverse dirs)))))
458 (defun normal-top-level-add-to-load-path (dirs)
459 "This function is called from a subdirs.el file.
460 It assumes that `default-directory' is the directory in which the
461 subdirs.el file exists, and it adds to `load-path' the subdirs of
462 that directory as specified in DIRS. Normally the elements of
463 DIRS are relative."
464 (let ((tail load-path)
465 (thisdir (directory-file-name default-directory)))
466 (while (and tail
467 ;;Don't go all the way to the nil terminator.
468 (cdr tail)
469 (not (equal thisdir (car tail)))
470 (not (and (memq system-type '(ms-dos windows-nt))
471 (equal (downcase thisdir) (downcase (car tail))))))
472 (setq tail (cdr tail)))
473 ;;Splice the new section in.
474 (when tail
475 (setcdr tail (append (mapcar 'expand-file-name dirs) (cdr tail))))))
477 (defun normal-top-level ()
478 "Emacs calls this function when it first starts up.
479 It sets `command-line-processed', processes the command-line,
480 reads the initialization files, etc.
481 It is the default value of the variable `top-level'."
482 (if command-line-processed
483 (message "Back to top level.")
484 (setq command-line-processed t)
485 (let ((dir default-directory))
486 (with-current-buffer "*Messages*"
487 ;; Make it easy to do like "tail -f".
488 (set (make-local-variable 'window-point-insertion-type) t)
489 ;; Give *Messages* the same default-directory as *scratch*,
490 ;; just to keep things predictable.
491 (setq default-directory dir)))
492 ;; `user-full-name' is now known; reset its standard-value here.
493 (put 'user-full-name 'standard-value
494 (list (default-value 'user-full-name)))
495 ;; Look in each dir in load-path for a subdirs.el file.
496 ;; If we find one, load it, which will add the appropriate subdirs
497 ;; of that dir into load-path,
498 ;; Look for a leim-list.el file too. Loading it will register
499 ;; available input methods.
500 (let ((tail load-path)
501 (lispdir (expand-file-name "../lisp" data-directory))
502 ;; For out-of-tree builds, leim-list is generated in the build dir.
503 ;;; (leimdir (expand-file-name "../leim" doc-directory))
504 dir)
505 (while tail
506 (setq dir (car tail))
507 (let ((default-directory dir))
508 (load (expand-file-name "subdirs.el") t t t))
509 ;; Do not scan standard directories that won't contain a leim-list.el.
510 ;; http://lists.gnu.org/archive/html/emacs-devel/2009-10/msg00502.html
511 (or (string-match (concat "\\`" lispdir) dir)
512 (let ((default-directory dir))
513 (load (expand-file-name "leim-list.el") t t t)))
514 ;; We don't use a dolist loop and we put this "setq-cdr" command at
515 ;; the end, because the subdirs.el files may add elements to the end
516 ;; of load-path and we want to take it into account.
517 (setq tail (cdr tail))))
518 ;; If the PWD environment variable isn't accurate, delete it.
519 (let ((pwd (getenv "PWD")))
520 (and (stringp pwd)
521 ;; Use FOO/., so that if FOO is a symlink, file-attributes
522 ;; describes the directory linked to, not FOO itself.
523 (or (equal (file-attributes
524 (concat (file-name-as-directory pwd) "."))
525 (file-attributes
526 (concat (file-name-as-directory default-directory)
527 ".")))
528 (setq process-environment
529 (delete (concat "PWD=" pwd)
530 process-environment)))))
531 (setq default-directory (abbreviate-file-name default-directory))
532 (let ((old-face-font-rescale-alist face-font-rescale-alist))
533 (unwind-protect
534 (command-line)
535 ;; Do this again, in case .emacs defined more abbreviations.
536 (setq default-directory (abbreviate-file-name default-directory))
537 ;; Specify the file for recording all the auto save files of this session.
538 ;; This is used by recover-session.
539 (or auto-save-list-file-name
540 (and auto-save-list-file-prefix
541 (setq auto-save-list-file-name
542 ;; Under MS-DOS our PID is almost always reused between
543 ;; Emacs invocations. We need something more unique.
544 (cond ((eq system-type 'ms-dos)
545 ;; We are going to access the auto-save
546 ;; directory, so make sure it exists.
547 (make-directory
548 (file-name-directory auto-save-list-file-prefix)
550 (concat
551 (make-temp-name
552 (expand-file-name
553 auto-save-list-file-prefix))
554 "~"))
556 (expand-file-name
557 (format "%s%d-%s~"
558 auto-save-list-file-prefix
559 (emacs-pid)
560 (system-name))))))))
561 (unless inhibit-startup-hooks
562 (run-hooks 'emacs-startup-hook)
563 (and term-setup-hook
564 (run-hooks 'term-setup-hook)))
566 ;; Don't do this if we failed to create the initial frame,
567 ;; for instance due to a dense colormap.
568 (when (or frame-initial-frame
569 ;; If frame-initial-frame has no meaning, do this anyway.
570 (not (and initial-window-system
571 (not noninteractive)
572 (not (eq initial-window-system 'pc)))))
574 ;; FIXME: The user's init file may change
575 ;; face-font-rescale-alist. However, the default face
576 ;; already has an assigned font object, which does not take
577 ;; face-font-rescale-alist into account. For such
578 ;; situations, we ought to have a way to find all font
579 ;; objects and regenerate them; currently we do not. As a
580 ;; workaround, we specifically reset te default face's :font
581 ;; attribute here. See bug#1785.
582 (unless (eq face-font-rescale-alist
583 old-face-font-rescale-alist)
584 (set-face-attribute 'default nil :font (font-spec)))
586 ;; Modify the initial frame based on what .emacs puts into
587 ;; ...-frame-alist.
588 (if (fboundp 'frame-notice-user-settings)
589 (frame-notice-user-settings))
590 ;; Set the faces for the initial background mode even if
591 ;; frame-notice-user-settings didn't (such as on a tty).
592 ;; frame-set-background-mode is idempotent, so it won't
593 ;; cause any harm if it's already been done.
594 (if (fboundp 'frame-set-background-mode)
595 (frame-set-background-mode (selected-frame))))
597 ;; Now we know the user's default font, so add it to the menu.
598 (if (fboundp 'font-menu-add-default)
599 (font-menu-add-default))
600 (and window-setup-hook
601 (run-hooks 'window-setup-hook))))
602 ;; Subprocesses of Emacs do not have direct access to the terminal, so
603 ;; unless told otherwise they should only assume a dumb terminal.
604 ;; We are careful to do it late (after term-setup-hook), although the
605 ;; new multi-tty code does not use $TERM any more there anyway.
606 (setenv "TERM" "dumb")
607 ;; Remove DISPLAY from the process-environment as well. This allows
608 ;; `callproc.c' to give it a useful adaptive default which is either
609 ;; the value of the `display' frame-parameter or the DISPLAY value
610 ;; from initial-environment.
611 (let ((display (frame-parameter nil 'display)))
612 ;; Be careful which DISPLAY to remove from process-environment: follow
613 ;; the logic of `callproc.c'.
614 (if (stringp display) (setq display (concat "DISPLAY=" display))
615 (dolist (varval initial-environment)
616 (if (string-match "\\`DISPLAY=" varval)
617 (setq display varval))))
618 (when display
619 (delete display process-environment)))))
621 ;; Precompute the keyboard equivalents in the menu bar items.
622 ;; Command-line options supported by tty's:
623 (defconst tty-long-option-alist
624 '(("--name" . "-name")
625 ("--title" . "-T")
626 ("--reverse-video" . "-reverse")
627 ("--foreground-color" . "-fg")
628 ("--background-color" . "-bg")
629 ("--color" . "-color")))
631 (defconst tool-bar-images-pixel-height 24
632 "Height in pixels of images in the tool-bar.")
634 (defvar tool-bar-originally-present nil
635 "Non-nil if tool-bars are present before user and site init files are read.")
637 (defvar handle-args-function-alist '((nil . tty-handle-args))
638 "Functions for processing window-system dependent command-line arguments.
639 Window system startup files should add their own function to this
640 alist, which should parse the command line arguments. Those
641 pertaining to the window system should be processed and removed
642 from the returned command line.")
644 (defvar window-system-initialization-alist '((nil . ignore))
645 "Alist of window-system initialization functions.
646 Window-system startup files should add their own initialization
647 function to this list. The function should take no arguments,
648 and initialize the window system environment to prepare for
649 opening the first frame (e.g. open a connection to an X server).")
651 (defun tty-handle-args (args)
652 "Handle the X-like command-line arguments \"-fg\", \"-bg\", \"-name\", etc."
653 (let (rest)
654 (message "%S" args)
655 (while (and args
656 (not (equal (car args) "--")))
657 (let* ((argi (pop args))
658 (orig-argi argi)
659 argval completion)
660 ;; Check for long options with attached arguments
661 ;; and separate out the attached option argument into argval.
662 (when (string-match "^\\(--[^=]*\\)=" argi)
663 (setq argval (substring argi (match-end 0))
664 argi (match-string 1 argi)))
665 (when (string-match "^--" argi)
666 (setq completion (try-completion argi tty-long-option-alist))
667 (if (eq completion t)
668 ;; Exact match for long option.
669 (setq argi (cdr (assoc argi tty-long-option-alist)))
670 (if (stringp completion)
671 (let ((elt (assoc completion tty-long-option-alist)))
672 ;; Check for abbreviated long option.
673 (or elt
674 (error "Option `%s' is ambiguous" argi))
675 (setq argi (cdr elt)))
676 ;; Check for a short option.
677 (setq argval nil
678 argi orig-argi))))
679 (cond ((member argi '("-fg" "-foreground"))
680 (push (cons 'foreground-color (or argval (pop args)))
681 default-frame-alist))
682 ((member argi '("-bg" "-background"))
683 (push (cons 'background-color (or argval (pop args)))
684 default-frame-alist))
685 ((member argi '("-T" "-name"))
686 (unless argval (setq argval (pop args)))
687 (push (cons 'title
688 (if (stringp argval)
689 argval
690 (let ((case-fold-search t)
692 (setq argval (invocation-name))
694 ;; Change any . or * characters in name to
695 ;; hyphens, so as to emulate behavior on X.
696 (while
697 (setq i (string-match "[.*]" argval))
698 (aset argval i ?-))
699 argval)))
700 default-frame-alist))
701 ((member argi '("-r" "-rv" "-reverse"))
702 (push '(reverse . t)
703 default-frame-alist))
704 ((equal argi "-color")
705 (unless argval (setq argval 8)) ; default --color means 8 ANSI colors
706 (push (cons 'tty-color-mode
707 (cond
708 ((numberp argval) argval)
709 ((string-match "-?[0-9]+" argval)
710 (string-to-number argval))
711 (t (intern argval))))
712 default-frame-alist))
714 (push argi rest)))))
715 (nreverse rest)))
717 (declare-function x-get-resource "frame.c"
718 (attribute class &optional component subclass))
719 (declare-function tool-bar-mode "tool-bar" (&optional arg))
720 (declare-function tool-bar-setup "tool-bar")
722 (defvar server-name)
723 (defvar server-process)
725 (defun command-line ()
726 "A subroutine of `normal-top-level'.
727 Amongst another things, it parses the command-line arguments."
728 (setq before-init-time (current-time)
729 after-init-time nil
730 command-line-default-directory default-directory)
732 ;; Force recomputation, in case it was computed during the dump.
733 (setq abbreviated-home-dir nil)
735 ;; See if we should import version-control from the environment variable.
736 (let ((vc (getenv "VERSION_CONTROL")))
737 (cond ((eq vc nil)) ;don't do anything if not set
738 ((member vc '("t" "numbered"))
739 (setq version-control t))
740 ((member vc '("nil" "existing"))
741 (setq version-control nil))
742 ((member vc '("never" "simple"))
743 (setq version-control 'never))))
745 ;;! This has been commented out; I currently find the behavior when
746 ;;! split-window-keep-point is nil disturbing, but if I can get used
747 ;;! to it, then it would be better to eliminate the option.
748 ;;! ;; Choose a good default value for split-window-keep-point.
749 ;;! (setq split-window-keep-point (> baud-rate 2400))
751 ;; Set the default strings to display in mode line for
752 ;; end-of-line formats that aren't native to this platform.
753 (cond
754 ((memq system-type '(ms-dos windows-nt))
755 (setq eol-mnemonic-unix "(Unix)"
756 eol-mnemonic-mac "(Mac)"))
757 (t ; this is for Unix/GNU/Linux systems
758 (setq eol-mnemonic-dos "(DOS)"
759 eol-mnemonic-mac "(Mac)")))
761 (set-locale-environment nil)
763 ;; Convert preloaded file names in load-history to absolute.
764 (let ((simple-file-name
765 ;; Look for simple.el or simple.elc and use their directory
766 ;; as the place where all Lisp files live.
767 (locate-file "simple" load-path (get-load-suffixes)))
768 lisp-dir)
769 ;; Don't abort if simple.el cannot be found, but print a warning.
770 (if (null simple-file-name)
771 (progn
772 (princ "Warning: Could not find simple.el nor simple.elc"
773 'external-debugging-output)
774 (terpri 'external-debugging-output))
775 (setq lisp-dir (file-truename (file-name-directory simple-file-name)))
776 (setq load-history
777 (mapcar (lambda (elt)
778 (if (and (stringp (car elt))
779 (not (file-name-absolute-p (car elt))))
780 (cons (concat lisp-dir
781 (car elt))
782 (cdr elt))
783 elt))
784 load-history))))
786 ;; Convert the arguments to Emacs internal representation.
787 (let ((args (cdr command-line-args)))
788 (while args
789 (setcar args
790 (decode-coding-string (car args) locale-coding-system t))
791 (pop args)))
793 (let ((done nil)
794 (args (cdr command-line-args))
795 display-arg)
797 ;; Figure out which user's init file to load,
798 ;; either from the environment or from the options.
799 (setq init-file-user (if noninteractive nil (user-login-name)))
800 ;; If user has not done su, use current $HOME to find .emacs.
801 (and init-file-user
802 (equal init-file-user (user-real-login-name))
803 (setq init-file-user ""))
805 ;; Process the command-line args, and delete the arguments
806 ;; processed. This is consistent with the way main in emacs.c
807 ;; does things.
808 (while (and (not done) args)
809 (let* ((longopts '(("--no-init-file") ("--no-site-file") ("--debug-init")
810 ("--user") ("--iconic") ("--icon-type") ("--quick")
811 ("--no-blinking-cursor") ("--basic-display")))
812 (argi (pop args))
813 (orig-argi argi)
814 argval)
815 ;; Handle --OPTION=VALUE format.
816 (when (string-match "\\`\\(--[^=]*\\)=" argi)
817 (setq argval (substring argi (match-end 0))
818 argi (match-string 1 argi)))
819 (when (string-match "\\`--." orig-argi)
820 (let ((completion (try-completion argi longopts)))
821 (cond ((eq completion t)
822 (setq argi (substring argi 1)))
823 ((stringp completion)
824 (let ((elt (assoc completion longopts)))
825 (unless elt
826 (error "Option `%s' is ambiguous" argi))
827 (setq argi (substring (car elt) 1))))
829 (setq argval nil
830 argi orig-argi)))))
831 (cond
832 ;; The --display arg is handled partly in C, partly in Lisp.
833 ;; When it shows up here, we just put it back to be handled
834 ;; by `command-line-1'.
835 ((member argi '("-d" "-display"))
836 (setq display-arg (list argi (pop args))))
837 ((member argi '("-Q" "-quick"))
838 (setq init-file-user nil
839 site-run-file nil
840 inhibit-x-resources t))
841 ((member argi '("-D" "-basic-display"))
842 (setq no-blinking-cursor t
843 emacs-basic-display t)
844 (push '(vertical-scroll-bars . nil) initial-frame-alist))
845 ((member argi '("-q" "-no-init-file"))
846 (setq init-file-user nil))
847 ((member argi '("-u" "-user"))
848 (setq init-file-user (or argval (pop args))
849 argval nil))
850 ((equal argi "-no-site-file")
851 (setq site-run-file nil))
852 ((equal argi "-debug-init")
853 (setq init-file-debug t))
854 ((equal argi "-iconic")
855 (push '(visibility . icon) initial-frame-alist))
856 ((member argi '("-nbc" "-no-blinking-cursor"))
857 (setq no-blinking-cursor t))
858 ;; Push the popped arg back on the list of arguments.
860 (push argi args)
861 (setq done t)))
862 ;; Was argval set but not used?
863 (and argval
864 (error "Option `%s' doesn't allow an argument" argi))))
866 ;; Re-attach the --display arg.
867 (and display-arg (setq args (append display-arg args)))
869 ;; Re-attach the program name to the front of the arg list.
870 (and command-line-args
871 (setcdr command-line-args args)))
873 ;; Make sure window system's init file was loaded in loadup.el if
874 ;; using a window system.
875 ;; Initialize the window-system only after processing the command-line
876 ;; args so that -Q can influence this initialization.
877 (condition-case error
878 (unless noninteractive
879 (if (and initial-window-system
880 (not (featurep
881 (intern
882 (concat (symbol-name initial-window-system) "-win")))))
883 (error "Unsupported window system `%s'" initial-window-system))
884 ;; Process window-system specific command line parameters.
885 (setq command-line-args
886 (funcall
887 (or (cdr (assq initial-window-system handle-args-function-alist))
888 (error "Unsupported window system `%s'" initial-window-system))
889 command-line-args))
890 ;; Initialize the window system. (Open connection, etc.)
891 (funcall
892 (or (cdr (assq initial-window-system window-system-initialization-alist))
893 (error "Unsupported window system `%s'" initial-window-system)))
894 (put initial-window-system 'window-system-initialized t))
895 ;; If there was an error, print the error message and exit.
896 (error
897 (princ
898 (if (eq (car error) 'error)
899 (apply 'concat (cdr error))
900 (if (memq 'file-error (get (car error) 'error-conditions))
901 (format "%s: %s"
902 (nth 1 error)
903 (mapconcat (lambda (obj) (prin1-to-string obj t))
904 (cdr (cdr error)) ", "))
905 (format "%s: %s"
906 (get (car error) 'error-message)
907 (mapconcat (lambda (obj) (prin1-to-string obj t))
908 (cdr error) ", "))))
909 'external-debugging-output)
910 (terpri 'external-debugging-output)
911 (setq initial-window-system nil)
912 (kill-emacs)))
914 (run-hooks 'before-init-hook)
916 ;; Under X, create the X frame and delete the terminal frame.
917 (unless (daemonp)
918 (if (or noninteractive emacs-basic-display)
919 (setq menu-bar-mode nil
920 tool-bar-mode nil
921 no-blinking-cursor t))
922 (frame-initialize))
924 (when (fboundp 'x-create-frame)
925 ;; Set up the tool-bar (even in tty frames, since Emacs might open a
926 ;; graphical frame later).
927 (unless noninteractive
928 (tool-bar-setup)))
930 ;; Turn off blinking cursor if so specified in X resources. This is here
931 ;; only because all other settings of no-blinking-cursor are here.
932 (unless (or noninteractive
933 emacs-basic-display
934 (and (memq window-system '(x w32 ns))
935 (not (member (x-get-resource "cursorBlink" "CursorBlink")
936 '("no" "off" "false" "0")))))
937 (setq no-blinking-cursor t))
939 ;; Re-evaluate predefined variables whose initial value depends on
940 ;; the runtime context.
941 (mapc 'custom-reevaluate-setting
942 ;; Initialize them in the same order they were loaded, in case there
943 ;; are dependencies between them.
944 (prog1 (nreverse custom-delayed-init-variables)
945 (setq custom-delayed-init-variables nil)))
947 (normal-erase-is-backspace-setup-frame)
949 ;; Register default TTY colors for the case the terminal hasn't a
950 ;; terminal init file. We do this regardless of whether the terminal
951 ;; supports colors or not and regardless the current display type,
952 ;; since users can connect to color-capable terminals and also
953 ;; switch color support on or off in mid-session by setting the
954 ;; tty-color-mode frame parameter.
955 ;; Exception: the `pc' ``window system'' has only 16 fixed colors,
956 ;; and they are already set at this point by a suitable function in
957 ;; window-system-initialization-alist.
958 (or (eq initial-window-system 'pc)
959 (tty-register-default-colors))
961 ;; Record whether the tool-bar is present before the user and site
962 ;; init files are processed. frame-notice-user-settings uses this
963 ;; to determine if the tool-bar has been disabled by the init files,
964 ;; and the frame needs to be resized.
965 (when (fboundp 'frame-notice-user-settings)
966 (let ((tool-bar-lines (or (assq 'tool-bar-lines initial-frame-alist)
967 (assq 'tool-bar-lines default-frame-alist))))
968 (setq tool-bar-originally-present
969 (and tool-bar-lines
970 (cdr tool-bar-lines)
971 (not (eq 0 (cdr tool-bar-lines)))))))
973 (let ((old-scalable-fonts-allowed scalable-fonts-allowed)
974 (old-face-ignored-fonts face-ignored-fonts))
976 ;; Run the site-start library if it exists. The point of this file is
977 ;; that it is run before .emacs. There is no point in doing this after
978 ;; .emacs; that is useless.
979 ;; Note that user-init-file is nil at this point. Code that might
980 ;; be loaded from site-run-file and wants to test if -q was given
981 ;; should check init-file-user instead, since that is already set.
982 ;; See cus-edit.el for an example.
983 (if site-run-file
984 (load site-run-file t t))
986 ;; Sites should not disable this. Only individuals should disable
987 ;; the startup screen.
988 (setq inhibit-startup-screen nil)
990 ;; Warn for invalid user name.
991 (when init-file-user
992 (if (string-match "[~/:\n]" init-file-user)
993 (display-warning 'initialization
994 (format "Invalid user name %s"
995 init-file-user)
996 :error)
997 (if (file-directory-p (expand-file-name
998 ;; We don't support ~USER on MS-Windows
999 ;; and MS-DOS except for the current
1000 ;; user, and always load .emacs from
1001 ;; the current user's home directory
1002 ;; (see below). So always check "~",
1003 ;; even if invoked with "-u USER", or
1004 ;; if $USER or $LOGNAME are set to
1005 ;; something different.
1006 (if (memq system-type '(windows-nt ms-dos))
1008 (concat "~" init-file-user))))
1010 (display-warning 'initialization
1011 (format "User %s has no home directory"
1012 (if (equal init-file-user "")
1013 (user-real-login-name)
1014 init-file-user))
1015 :error))))
1017 ;; Load that user's init file, or the default one, or none.
1018 (let (debug-on-error-from-init-file
1019 debug-on-error-should-be-set
1020 (debug-on-error-initial
1021 (if (eq init-file-debug t) 'startup init-file-debug))
1022 (orig-enable-multibyte (default-value 'enable-multibyte-characters)))
1023 (let ((debug-on-error debug-on-error-initial)
1024 ;; This function actually reads the init files.
1025 (inner
1026 (function
1027 (lambda ()
1028 (if init-file-user
1029 (let ((user-init-file-1
1030 (cond
1031 ((eq system-type 'ms-dos)
1032 (concat "~" init-file-user "/_emacs"))
1033 ((not (eq system-type 'windows-nt))
1034 (concat "~" init-file-user "/.emacs"))
1035 ;; Else deal with the Windows situation
1036 ((directory-files "~" nil "^\\.emacs\\(\\.elc?\\)?$")
1037 ;; Prefer .emacs on Windows.
1038 "~/.emacs")
1039 ((directory-files "~" nil "^_emacs\\(\\.elc?\\)?$")
1040 ;; Also support _emacs for compatibility, but warn about it.
1041 (push '(initialization
1042 "`_emacs' init file is deprecated, please use `.emacs'")
1043 delayed-warnings-list)
1044 "~/_emacs")
1045 (t ;; But default to .emacs if _emacs does not exist.
1046 "~/.emacs"))))
1047 ;; This tells `load' to store the file name found
1048 ;; into user-init-file.
1049 (setq user-init-file t)
1050 (load user-init-file-1 t t)
1052 (when (eq user-init-file t)
1053 ;; If we did not find ~/.emacs, try
1054 ;; ~/.emacs.d/init.el.
1055 (let ((otherfile
1056 (expand-file-name
1057 "init"
1058 (file-name-as-directory
1059 (concat "~" init-file-user "/.emacs.d")))))
1060 (load otherfile t t)
1062 ;; If we did not find the user's init file,
1063 ;; set user-init-file conclusively.
1064 ;; Don't let it be set from default.el.
1065 (when (eq user-init-file t)
1066 (setq user-init-file user-init-file-1))))
1068 ;; If we loaded a compiled file, set
1069 ;; `user-init-file' to the source version if that
1070 ;; exists.
1071 (when (and user-init-file
1072 (equal (file-name-extension user-init-file)
1073 "elc"))
1074 (let* ((source (file-name-sans-extension user-init-file))
1075 (alt (concat source ".el")))
1076 (setq source (cond ((file-exists-p alt) alt)
1077 ((file-exists-p source) source)
1078 (t nil)))
1079 (when source
1080 (when (file-newer-than-file-p source user-init-file)
1081 (message "Warning: %s is newer than %s"
1082 source user-init-file)
1083 (sit-for 1))
1084 (setq user-init-file source))))
1086 (unless inhibit-default-init
1087 (let ((inhibit-startup-screen nil))
1088 ;; Users are supposed to be told their rights.
1089 ;; (Plus how to get help and how to undo.)
1090 ;; Don't you dare turn this off for anyone
1091 ;; except yourself.
1092 (load "default" t t)))))))))
1093 (if init-file-debug
1094 ;; Do this without a condition-case if the user wants to debug.
1095 (funcall inner)
1096 (condition-case error
1097 (progn
1098 (funcall inner)
1099 (setq init-file-had-error nil))
1100 (error
1101 (display-warning
1102 'initialization
1103 (format "An error occurred while loading `%s':\n\n%s%s%s\n\n\
1104 To ensure normal operation, you should investigate and remove the
1105 cause of the error in your initialization file. Start Emacs with
1106 the `--debug-init' option to view a complete error backtrace."
1107 user-init-file
1108 (get (car error) 'error-message)
1109 (if (cdr error) ": " "")
1110 (mapconcat (lambda (s) (prin1-to-string s t))
1111 (cdr error) ", "))
1112 :warning)
1113 (setq init-file-had-error t))))
1115 (if (and deactivate-mark transient-mark-mode)
1116 (with-current-buffer (window-buffer)
1117 (deactivate-mark)))
1119 ;; If the user has a file of abbrevs, read it (unless -batch).
1120 (when (and (not noninteractive)
1121 (file-exists-p abbrev-file-name)
1122 (file-readable-p abbrev-file-name))
1123 (quietly-read-abbrev-file abbrev-file-name))
1125 ;; If the abbrevs came entirely from the init file or the
1126 ;; abbrevs file, they do not need saving.
1127 (setq abbrevs-changed nil)
1129 ;; If we can tell that the init file altered debug-on-error,
1130 ;; arrange to preserve the value that it set up.
1131 (or (eq debug-on-error debug-on-error-initial)
1132 (setq debug-on-error-should-be-set t
1133 debug-on-error-from-init-file debug-on-error)))
1134 (if debug-on-error-should-be-set
1135 (setq debug-on-error debug-on-error-from-init-file))
1136 (unless (or (default-value 'enable-multibyte-characters)
1137 (eq orig-enable-multibyte (default-value
1138 'enable-multibyte-characters)))
1139 ;; Init file changed to unibyte. Reset existing multibyte
1140 ;; buffers (probably *scratch*, *Messages*, *Minibuf-0*).
1141 ;; Arguably this should only be done if they're free of
1142 ;; multibyte characters.
1143 (mapc (lambda (buffer)
1144 (with-current-buffer buffer
1145 (if enable-multibyte-characters
1146 (set-buffer-multibyte nil))))
1147 (buffer-list))
1148 ;; Also re-set the language environment in case it was
1149 ;; originally done before unibyte was set and is sensitive to
1150 ;; unibyte (display table, terminal coding system &c).
1151 (set-language-environment current-language-environment)))
1153 ;; Do this here in case the init file sets mail-host-address.
1154 (if (equal user-mail-address "")
1155 (setq user-mail-address (or (getenv "EMAIL")
1156 (concat (user-login-name) "@"
1157 (or mail-host-address
1158 (system-name))))))
1160 ;; If parameter have been changed in the init file which influence
1161 ;; face realization, clear the face cache so that new faces will
1162 ;; be realized.
1163 (unless (and (eq scalable-fonts-allowed old-scalable-fonts-allowed)
1164 (eq face-ignored-fonts old-face-ignored-fonts))
1165 (clear-face-cache)))
1167 ;; If any package directory exists, initialize the package system.
1168 (and user-init-file
1169 package-enable-at-startup
1170 (catch 'package-dir-found
1171 (let (dirs)
1172 (if (boundp 'package-directory-list)
1173 (setq dirs package-directory-list)
1174 (dolist (f load-path)
1175 (and (stringp f)
1176 (equal (file-name-nondirectory f) "site-lisp")
1177 (push (expand-file-name "elpa" f) dirs))))
1178 (push (if (boundp 'package-user-dir)
1179 package-user-dir
1180 (locate-user-emacs-file "elpa"))
1181 dirs)
1182 (dolist (dir dirs)
1183 (when (file-directory-p dir)
1184 (dolist (subdir (directory-files dir))
1185 (when (and (file-directory-p (expand-file-name subdir dir))
1186 (string-match
1187 (concat "\\`" package-subdirectory-regexp "\\'")
1188 subdir))
1189 (throw 'package-dir-found t)))))))
1190 (package-initialize))
1192 (setq after-init-time (current-time))
1193 (run-hooks 'after-init-hook)
1195 ;; Decode all default-directory.
1196 (if (and (default-value 'enable-multibyte-characters) locale-coding-system)
1197 (save-excursion
1198 (dolist (elt (buffer-list))
1199 (set-buffer elt)
1200 (if default-directory
1201 (setq default-directory
1202 (decode-coding-string default-directory
1203 locale-coding-system t))))
1204 (setq command-line-default-directory
1205 (decode-coding-string command-line-default-directory
1206 locale-coding-system t))))
1208 ;; If *scratch* exists and init file didn't change its mode, initialize it.
1209 (if (get-buffer "*scratch*")
1210 (with-current-buffer "*scratch*"
1211 (if (eq major-mode 'fundamental-mode)
1212 (funcall initial-major-mode))))
1214 ;; Load library for our terminal type.
1215 ;; User init file can set term-file-prefix to nil to prevent this.
1216 (unless (or noninteractive
1217 initial-window-system)
1218 (tty-run-terminal-initialization (selected-frame)))
1220 ;; Update the out-of-memory error message based on user's key bindings
1221 ;; for save-some-buffers.
1222 (setq memory-signal-data
1223 (list 'error
1224 (substitute-command-keys "Memory exhausted--use \\[save-some-buffers] then exit and restart Emacs")))
1226 ;; Process the remaining args.
1227 (command-line-1 (cdr command-line-args))
1229 ;; If -batch, terminate after processing the command options.
1230 (if noninteractive (kill-emacs t))
1232 ;; In daemon mode, start the server to allow clients to connect.
1233 ;; This is done after loading the user's init file and after
1234 ;; processing all command line arguments to allow e.g. `server-name'
1235 ;; to be changed before the server starts.
1236 (let ((dn (daemonp)))
1237 (when dn
1238 (when (stringp dn) (setq server-name dn))
1239 (server-start)
1240 (if server-process
1241 (daemon-initialized)
1242 (if (stringp dn)
1243 (message
1244 "Unable to start daemon: Emacs server named %S already running"
1245 server-name)
1246 (message "Unable to start the daemon.\nAnother instance of Emacs is running the server, either as daemon or interactively.\nYou can use emacsclient to connect to that Emacs process."))
1247 (kill-emacs 1))))
1249 ;; Run emacs-session-restore (session management) if started by
1250 ;; the session manager and we have a session manager connection.
1251 (if (and (boundp 'x-session-previous-id)
1252 (stringp x-session-previous-id))
1253 (with-no-warnings
1254 (emacs-session-restore x-session-previous-id))))
1256 (defun x-apply-session-resources ()
1257 "Apply X resources which specify initial values for Emacs variables.
1258 This is called from a window-system initialization function, such
1259 as `x-initialize-window-system' for X, either at startup (prior
1260 to reading the init file), or afterwards when the user first
1261 opens a graphical frame.
1263 This can set the values of `menu-bar-mode', `tool-bar-mode', and
1264 `no-blinking-cursor', as well as the `cursor' face. Changed
1265 settings will be marked as \"CHANGED outside of Customize\"."
1266 (let ((no-vals '("no" "off" "false" "0"))
1267 (settings '(("menuBar" "MenuBar" menu-bar-mode nil)
1268 ("toolBar" "ToolBar" tool-bar-mode nil)
1269 ("cursorBlink" "CursorBlink" no-blinking-cursor t))))
1270 (dolist (x settings)
1271 (if (member (x-get-resource (nth 0 x) (nth 1 x)) no-vals)
1272 (set (nth 2 x) (nth 3 x)))))
1273 (let ((color (x-get-resource "cursorColor" "Foreground")))
1274 (when color
1275 (put 'cursor 'theme-face
1276 `((changed ((t :background ,color)))))
1277 (put 'cursor 'face-modified t))))
1279 (defcustom initial-scratch-message (purecopy "\
1280 ;; This buffer is for notes you don't want to save, and for Lisp evaluation.
1281 ;; If you want to create a file, visit that file with C-x C-f,
1282 ;; then enter the text in that file's own buffer.
1285 "Initial message displayed in *scratch* buffer at startup.
1286 If this is nil, no message will be displayed."
1287 :type '(choice (text :tag "Message")
1288 (const :tag "none" nil))
1289 :group 'initialization)
1292 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1293 ;;; Fancy splash screen
1294 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1296 (defconst fancy-startup-text
1297 `((:face (variable-pitch font-lock-comment-face)
1298 "Welcome to "
1299 :link ("GNU Emacs"
1300 ,(lambda (_button) (browse-url "http://www.gnu.org/software/emacs/"))
1301 "Browse http://www.gnu.org/software/emacs/")
1302 ", one component of the "
1303 :link
1304 ,(lambda ()
1305 (if (eq system-type 'gnu/linux)
1306 `("GNU/Linux"
1307 ,(lambda (_button) (browse-url "http://www.gnu.org/gnu/linux-and-gnu.html"))
1308 "Browse http://www.gnu.org/gnu/linux-and-gnu.html")
1309 `("GNU" ,(lambda (_button) (describe-gnu-project))
1310 "Display info on the GNU project")))
1311 " operating system.\n\n"
1312 :face variable-pitch
1313 :link ("Emacs Tutorial" ,(lambda (_button) (help-with-tutorial)))
1314 "\tLearn basic keystroke commands"
1315 ,(lambda ()
1316 (let* ((en "TUTORIAL")
1317 (tut (or (get-language-info current-language-environment
1318 'tutorial)
1319 en))
1320 (title (with-temp-buffer
1321 (insert-file-contents
1322 (expand-file-name tut tutorial-directory)
1323 ;; We used to read only the first 256 bytes of
1324 ;; the tutorial, but that prevents the coding:
1325 ;; setting, if any, in file-local variables
1326 ;; section to be seen by insert-file-contents,
1327 ;; and results in gibberish when the language
1328 ;; environment's preferred encoding is
1329 ;; different from what the file-local variable
1330 ;; says. One case in point is Hebrew.
1331 nil)
1332 (search-forward ".")
1333 (buffer-substring (point-min) (1- (point))))))
1334 ;; If there is a specific tutorial for the current language
1335 ;; environment and it is not English, append its title.
1336 (if (string= en tut)
1338 (concat " (" title ")"))))
1339 "\n"
1340 :link ("Emacs Guided Tour"
1341 ,(lambda (_button)
1342 (browse-url "http://www.gnu.org/software/emacs/tour/"))
1343 "Browse http://www.gnu.org/software/emacs/tour/")
1344 "\tOverview of Emacs features at gnu.org\n"
1345 :link ("View Emacs Manual" ,(lambda (_button) (info-emacs-manual)))
1346 "\tView the Emacs manual using Info\n"
1347 :link ("Absence of Warranty" ,(lambda (_button) (describe-no-warranty)))
1348 "\tGNU Emacs comes with "
1349 :face (variable-pitch (:slant oblique))
1350 "ABSOLUTELY NO WARRANTY\n"
1351 :face variable-pitch
1352 :link ("Copying Conditions" ,(lambda (_button) (describe-copying)))
1353 "\tConditions for redistributing and changing Emacs\n"
1354 :link ("Ordering Manuals" ,(lambda (_button) (view-order-manuals)))
1355 "\tPurchasing printed copies of manuals\n"
1356 "\n"))
1357 "A list of texts to show in the middle part of splash screens.
1358 Each element in the list should be a list of strings or pairs
1359 `:face FACE', like `fancy-splash-insert' accepts them.")
1361 (defconst fancy-about-text
1362 `((:face (variable-pitch font-lock-comment-face)
1363 "This is "
1364 :link ("GNU Emacs"
1365 ,(lambda (_button) (browse-url "http://www.gnu.org/software/emacs/"))
1366 "Browse http://www.gnu.org/software/emacs/")
1367 ", one component of the "
1368 :link
1369 ,(lambda ()
1370 (if (eq system-type 'gnu/linux)
1371 `("GNU/Linux"
1372 ,(lambda (_button)
1373 (browse-url "http://www.gnu.org/gnu/linux-and-gnu.html"))
1374 "Browse http://www.gnu.org/gnu/linux-and-gnu.html")
1375 `("GNU" ,(lambda (_button) (describe-gnu-project))
1376 "Display info on the GNU project.")))
1377 " operating system.\n"
1378 :face (variable-pitch font-lock-builtin-face)
1379 "\n"
1380 ,(lambda () (emacs-version))
1381 "\n"
1382 :face (variable-pitch (:height 0.8))
1383 ,(lambda () emacs-copyright)
1384 "\n\n"
1385 :face variable-pitch
1386 :link ("Authors"
1387 ,(lambda (_button)
1388 (view-file (expand-file-name "AUTHORS" data-directory))
1389 (goto-char (point-min))))
1390 "\tMany people have contributed code included in GNU Emacs\n"
1391 :link ("Contributing"
1392 ,(lambda (_button)
1393 (view-file (expand-file-name "CONTRIBUTE" data-directory))
1394 (goto-char (point-min))))
1395 "\tHow to contribute improvements to Emacs\n"
1396 "\n"
1397 :link ("GNU and Freedom" ,(lambda (_button) (describe-gnu-project)))
1398 "\tWhy we developed GNU Emacs, and the GNU operating system\n"
1399 :link ("Absence of Warranty" ,(lambda (_button) (describe-no-warranty)))
1400 "\tGNU Emacs comes with "
1401 :face (variable-pitch (:slant oblique))
1402 "ABSOLUTELY NO WARRANTY\n"
1403 :face variable-pitch
1404 :link ("Copying Conditions" ,(lambda (_button) (describe-copying)))
1405 "\tConditions for redistributing and changing Emacs\n"
1406 :link ("Getting New Versions" ,(lambda (_button) (describe-distribution)))
1407 "\tHow to obtain the latest version of Emacs\n"
1408 :link ("Ordering Manuals" ,(lambda (_button) (view-order-manuals)))
1409 "\tBuying printed manuals from the FSF\n"
1410 "\n"
1411 :link ("Emacs Tutorial" ,(lambda (_button) (help-with-tutorial)))
1412 "\tLearn basic Emacs keystroke commands"
1413 ,(lambda ()
1414 (let* ((en "TUTORIAL")
1415 (tut (or (get-language-info current-language-environment
1416 'tutorial)
1417 en))
1418 (title (with-temp-buffer
1419 (insert-file-contents
1420 (expand-file-name tut tutorial-directory)
1421 nil 0 256)
1422 (search-forward ".")
1423 (buffer-substring (point-min) (1- (point))))))
1424 ;; If there is a specific tutorial for the current language
1425 ;; environment and it is not English, append its title.
1426 (if (string= en tut)
1428 (concat " (" title ")"))))
1429 "\n"
1430 :link ("Emacs Guided Tour"
1431 ,(lambda (_button)
1432 (browse-url "http://www.gnu.org/software/emacs/tour/"))
1433 "Browse http://www.gnu.org/software/emacs/tour/")
1434 "\tSee an overview of Emacs features at gnu.org"))
1435 "A list of texts to show in the middle part of the About screen.
1436 Each element in the list should be a list of strings or pairs
1437 `:face FACE', like `fancy-splash-insert' accepts them.")
1440 (defgroup fancy-splash-screen ()
1441 "Fancy splash screen when Emacs starts."
1442 :version "21.1"
1443 :group 'initialization)
1445 (defcustom fancy-splash-image nil
1446 "The image to show in the splash screens, or nil for defaults."
1447 :group 'fancy-splash-screen
1448 :type '(choice (const :tag "Default" nil)
1449 (file :tag "File")))
1452 (defvar splash-screen-keymap
1453 (let ((map (make-sparse-keymap)))
1454 (suppress-keymap map)
1455 (set-keymap-parent map button-buffer-map)
1456 (define-key map "\C-?" 'scroll-down-command)
1457 (define-key map " " 'scroll-up-command)
1458 (define-key map "q" 'exit-splash-screen)
1459 map)
1460 "Keymap for splash screen buffer.")
1462 ;; These are temporary storage areas for the splash screen display.
1464 (defun fancy-splash-insert (&rest args)
1465 "Insert text into the current buffer, with faces.
1466 Arguments from ARGS should be either strings; functions called
1467 with no args that return a string; pairs `:face FACE', where FACE
1468 is a face specification usable with `put-text-property'; or pairs
1469 `:link LINK' where LINK is a list of arguments to pass to
1470 `insert-button', of the form (LABEL ACTION [HELP-ECHO]), which
1471 specifies the button's label, `action' property and help-echo string.
1472 FACE and LINK can also be functions, which are evaluated to obtain
1473 a face or button specification."
1474 (let ((current-face nil))
1475 (while args
1476 (cond ((eq (car args) :face)
1477 (setq args (cdr args) current-face (car args))
1478 (if (functionp current-face)
1479 (setq current-face (funcall current-face))))
1480 ((eq (car args) :link)
1481 (setq args (cdr args))
1482 (let ((spec (car args)))
1483 (if (functionp spec)
1484 (setq spec (funcall spec)))
1485 (insert-button (car spec)
1486 'face (list 'link current-face)
1487 'action (cadr spec)
1488 'help-echo (concat "mouse-2, RET: "
1489 (or (nth 2 spec)
1490 "Follow this link"))
1491 'follow-link t)))
1492 (t (insert (propertize (let ((it (car args)))
1493 (if (functionp it)
1494 (funcall it)
1495 it))
1496 'face current-face
1497 'help-echo (startup-echo-area-message)))))
1498 (setq args (cdr args)))))
1500 (declare-function image-size "image.c" (spec &optional pixels frame))
1502 (defun fancy-splash-head ()
1503 "Insert the head part of the splash screen into the current buffer."
1504 (let* ((image-file (cond ((stringp fancy-splash-image)
1505 fancy-splash-image)
1506 ((display-color-p)
1507 (cond ((<= (display-planes) 8)
1508 (if (image-type-available-p 'xpm)
1509 "splash.xpm"
1510 "splash.pbm"))
1511 ((or (image-type-available-p 'svg)
1512 (image-type-available-p 'imagemagick))
1513 "splash.svg")
1514 ((image-type-available-p 'png)
1515 "splash.png")
1516 ((image-type-available-p 'xpm)
1517 "splash.xpm")
1518 (t "splash.pbm")))
1519 (t "splash.pbm")))
1520 (img (create-image image-file))
1521 (image-width (and img (car (image-size img))))
1522 (window-width (window-width (selected-window))))
1523 (when img
1524 (when (> window-width image-width)
1525 ;; Center the image in the window.
1526 (insert (propertize " " 'display
1527 `(space :align-to (+ center (-0.5 . ,img)))))
1529 ;; Change the color of the XPM version of the splash image
1530 ;; so that it is visible with a dark frame background.
1531 (when (and (memq 'xpm img)
1532 (eq (frame-parameter nil 'background-mode) 'dark))
1533 (setq img (append img '(:color-symbols (("#000000" . "gray30"))))))
1535 ;; Insert the image with a help-echo and a link.
1536 (make-button (prog1 (point) (insert-image img)) (point)
1537 'face 'default
1538 'help-echo "mouse-2, RET: Browse http://www.gnu.org/"
1539 'action (lambda (_button) (browse-url "http://www.gnu.org/"))
1540 'follow-link t)
1541 (insert "\n\n")))))
1543 (defun fancy-startup-tail (&optional concise)
1544 "Insert the tail part of the splash screen into the current buffer."
1545 (unless concise
1546 (fancy-splash-insert
1547 :face 'variable-pitch
1548 "\nTo start... "
1549 :link `("Open a File"
1550 ,(lambda (_button) (call-interactively 'find-file))
1551 "Specify a new file's name, to edit the file")
1553 :link `("Open Home Directory"
1554 ,(lambda (_button) (dired "~"))
1555 "Open your home directory, to operate on its files")
1557 :link `("Customize Startup"
1558 ,(lambda (_button) (customize-group 'initialization))
1559 "Change initialization settings including this screen")
1560 "\n"))
1561 (fancy-splash-insert
1562 :face 'variable-pitch "To quit a partially entered command, type "
1563 :face 'default "Control-g"
1564 :face 'variable-pitch ".\n")
1565 (fancy-splash-insert :face `(variable-pitch font-lock-builtin-face)
1566 "\nThis is "
1567 (emacs-version)
1568 "\n"
1569 :face '(variable-pitch (:height 0.8))
1570 emacs-copyright
1571 "\n")
1572 (and auto-save-list-file-prefix
1573 ;; Don't signal an error if the
1574 ;; directory for auto-save-list files
1575 ;; does not yet exist.
1576 (file-directory-p (file-name-directory
1577 auto-save-list-file-prefix))
1578 (directory-files
1579 (file-name-directory auto-save-list-file-prefix)
1581 (concat "\\`"
1582 (regexp-quote (file-name-nondirectory
1583 auto-save-list-file-prefix)))
1585 (fancy-splash-insert :face '(variable-pitch font-lock-comment-face)
1586 "\nIf an Emacs session crashed recently, "
1587 "type "
1588 :face '(fixed-pitch font-lock-comment-face)
1589 "Meta-x recover-session RET"
1590 :face '(variable-pitch font-lock-comment-face)
1591 "\nto recover"
1592 " the files you were editing."))
1594 (when concise
1595 (fancy-splash-insert
1596 :face 'variable-pitch "\n"
1597 :link `("Dismiss this startup screen"
1598 ,(lambda (_button)
1599 (when startup-screen-inhibit-startup-screen
1600 (customize-set-variable 'inhibit-startup-screen t)
1601 (customize-mark-to-save 'inhibit-startup-screen)
1602 (custom-save-all))
1603 (let ((w (get-buffer-window "*GNU Emacs*")))
1604 (and w (not (one-window-p)) (delete-window w)))
1605 (kill-buffer "*GNU Emacs*")))
1606 " ")
1607 (when (or user-init-file custom-file)
1608 (let ((checked (create-image "checked.xpm"
1609 nil nil :ascent 'center))
1610 (unchecked (create-image "unchecked.xpm"
1611 nil nil :ascent 'center)))
1612 (insert-button
1614 :on-glyph checked
1615 :off-glyph unchecked
1616 'checked nil 'display unchecked 'follow-link t
1617 'action (lambda (button)
1618 (if (overlay-get button 'checked)
1619 (progn (overlay-put button 'checked nil)
1620 (overlay-put button 'display
1621 (overlay-get button :off-glyph))
1622 (setq startup-screen-inhibit-startup-screen
1623 nil))
1624 (overlay-put button 'checked t)
1625 (overlay-put button 'display
1626 (overlay-get button :on-glyph))
1627 (setq startup-screen-inhibit-startup-screen t)))))
1628 (fancy-splash-insert :face '(variable-pitch (:height 0.9))
1629 " Never show it again."))))
1631 (defun exit-splash-screen ()
1632 "Stop displaying the splash screen buffer."
1633 (interactive)
1634 (quit-window t))
1636 (defun fancy-startup-screen (&optional concise)
1637 "Display fancy startup screen.
1638 If CONCISE is non-nil, display a concise version of the
1639 splash screen in another window."
1640 (let ((splash-buffer (get-buffer-create "*GNU Emacs*")))
1641 (with-current-buffer splash-buffer
1642 (let ((inhibit-read-only t))
1643 (erase-buffer)
1644 (setq default-directory command-line-default-directory)
1645 (make-local-variable 'startup-screen-inhibit-startup-screen)
1646 (if pure-space-overflow
1647 (insert pure-space-overflow-message))
1648 (unless concise
1649 (fancy-splash-head))
1650 (dolist (text fancy-startup-text)
1651 (apply #'fancy-splash-insert text)
1652 (insert "\n"))
1653 (skip-chars-backward "\n")
1654 (delete-region (point) (point-max))
1655 (insert "\n")
1656 (fancy-startup-tail concise))
1657 (use-local-map splash-screen-keymap)
1658 (setq tab-width 22
1659 buffer-read-only t)
1660 (set-buffer-modified-p nil)
1661 (if (and view-read-only (not view-mode))
1662 (view-mode-enter nil 'kill-buffer))
1663 (goto-char (point-min))
1664 (forward-line (if concise 2 4)))
1665 (if concise
1666 (progn
1667 (display-buffer splash-buffer)
1668 ;; If the splash screen is in a split window, fit it.
1669 (let ((window (get-buffer-window splash-buffer t)))
1670 (or (null window)
1671 (eq window (selected-window))
1672 (eq window (next-window window))
1673 (fit-window-to-buffer window))))
1674 (switch-to-buffer splash-buffer))))
1676 (defun fancy-about-screen ()
1677 "Display fancy About screen."
1678 (let ((frame (fancy-splash-frame)))
1679 (save-selected-window
1680 (select-frame frame)
1681 (switch-to-buffer "*About GNU Emacs*")
1682 (setq buffer-undo-list t)
1683 (let ((inhibit-read-only t))
1684 (erase-buffer)
1685 (if pure-space-overflow
1686 (insert pure-space-overflow-message))
1687 (fancy-splash-head)
1688 (dolist (text fancy-about-text)
1689 (apply #'fancy-splash-insert text)
1690 (insert "\n"))
1691 (set-buffer-modified-p nil)
1692 (goto-char (point-min))
1693 (force-mode-line-update))
1694 (use-local-map splash-screen-keymap)
1695 (setq tab-width 22)
1696 (setq buffer-read-only t)
1697 (goto-char (point-min))
1698 (forward-line 3))))
1700 (defun fancy-splash-frame ()
1701 "Return the frame to use for the fancy splash screen.
1702 Returning non-nil does not mean we should necessarily
1703 use the fancy splash screen, but if we do use it,
1704 we put it on this frame."
1705 (let (chosen-frame)
1706 (dolist (frame (append (frame-list) (list (selected-frame))))
1707 (if (and (frame-visible-p frame)
1708 (not (window-minibuffer-p (frame-selected-window frame))))
1709 (setq chosen-frame frame)))
1710 chosen-frame))
1712 (defun use-fancy-splash-screens-p ()
1713 "Return t if fancy splash screens should be used."
1714 (when (and (display-graphic-p)
1715 (or (and (display-color-p)
1716 (image-type-available-p 'xpm))
1717 (image-type-available-p 'pbm)))
1718 (let ((frame (fancy-splash-frame)))
1719 (when frame
1720 (let* ((img (create-image (or fancy-splash-image
1721 (if (and (display-color-p)
1722 (image-type-available-p 'xpm))
1723 "splash.xpm" "splash.pbm"))))
1724 (image-height (and img (cdr (image-size img nil frame))))
1725 ;; We test frame-height so that, if the frame is split
1726 ;; by displaying a warning, that doesn't cause the normal
1727 ;; splash screen to be used.
1728 (frame-height (1- (frame-height frame))))
1729 (> frame-height (+ image-height 19)))))))
1732 (defun normal-splash-screen (&optional startup concise)
1733 "Display non-graphic splash screen.
1734 If optional argument STARTUP is non-nil, display the startup screen
1735 after Emacs starts. If STARTUP is nil, display the About screen.
1736 If CONCISE is non-nil, display a concise version of the
1737 splash screen in another window."
1738 (let ((splash-buffer (get-buffer-create "*About GNU Emacs*")))
1739 (with-current-buffer splash-buffer
1740 (setq buffer-read-only nil)
1741 (erase-buffer)
1742 (setq default-directory command-line-default-directory)
1743 (set (make-local-variable 'tab-width) 8)
1745 (if pure-space-overflow
1746 (insert pure-space-overflow-message))
1748 ;; The convention for this piece of code is that
1749 ;; each piece of output starts with one or two newlines
1750 ;; and does not end with any newlines.
1751 (insert (if startup "Welcome to GNU Emacs" "This is GNU Emacs"))
1752 (insert
1753 (if (eq system-type 'gnu/linux)
1754 ", one component of the GNU/Linux operating system.\n"
1755 ", a part of the GNU operating system.\n"))
1757 (if startup
1758 (if (display-mouse-p)
1759 ;; The user can use the mouse to activate menus
1760 ;; so give help in terms of menu items.
1761 (normal-mouse-startup-screen)
1763 ;; No mouse menus, so give help using kbd commands.
1764 (normal-no-mouse-startup-screen))
1766 (normal-about-screen))
1768 ;; The rest of the startup screen is the same on all
1769 ;; kinds of terminals.
1771 ;; Give information on recovering, if there was a crash.
1772 (and startup
1773 auto-save-list-file-prefix
1774 ;; Don't signal an error if the
1775 ;; directory for auto-save-list files
1776 ;; does not yet exist.
1777 (file-directory-p (file-name-directory
1778 auto-save-list-file-prefix))
1779 (directory-files
1780 (file-name-directory auto-save-list-file-prefix)
1782 (concat "\\`"
1783 (regexp-quote (file-name-nondirectory
1784 auto-save-list-file-prefix)))
1786 (insert "\n\nIf an Emacs session crashed recently, "
1787 "type Meta-x recover-session RET\nto recover"
1788 " the files you were editing.\n"))
1790 (use-local-map splash-screen-keymap)
1792 ;; Display the input that we set up in the buffer.
1793 (set-buffer-modified-p nil)
1794 (setq buffer-read-only t)
1795 (if (and view-read-only (not view-mode))
1796 (view-mode-enter nil 'kill-buffer))
1797 (if startup (rename-buffer "*GNU Emacs*" t))
1798 (goto-char (point-min)))
1799 (if concise
1800 (display-buffer splash-buffer)
1801 (switch-to-buffer splash-buffer))))
1803 (defun normal-mouse-startup-screen ()
1804 ;; The user can use the mouse to activate menus
1805 ;; so give help in terms of menu items.
1806 (insert "\
1807 To follow a link, click Mouse-1 on it, or move to it and type RET.
1808 To quit a partially entered command, type Control-g.\n")
1810 (insert "\nImportant Help menu items:\n")
1811 (insert-button "Emacs Tutorial"
1812 'action (lambda (_button) (help-with-tutorial))
1813 'follow-link t)
1814 (insert "\t\tLearn basic Emacs keystroke commands\n")
1815 (insert-button "Read the Emacs Manual"
1816 'action (lambda (_button) (info-emacs-manual))
1817 'follow-link t)
1818 (insert "\tView the Emacs manual using Info\n")
1819 (insert-button "\(Non)Warranty"
1820 'action (lambda (_button) (describe-no-warranty))
1821 'follow-link t)
1822 (insert "\t\tGNU Emacs comes with ABSOLUTELY NO WARRANTY\n")
1823 (insert-button "Copying Conditions"
1824 'action (lambda (_button) (describe-copying))
1825 'follow-link t)
1826 (insert "\tConditions for redistributing and changing Emacs\n")
1827 (insert-button "More Manuals / Ordering Manuals"
1828 'action (lambda (_button) (view-order-manuals))
1829 'follow-link t)
1830 (insert " How to order printed manuals from the FSF\n")
1832 (insert "\nUseful tasks:\n")
1833 (insert-button "Visit New File"
1834 'action (lambda (_button) (call-interactively 'find-file))
1835 'follow-link t)
1836 (insert "\t\tSpecify a new file's name, to edit the file\n")
1837 (insert-button "Open Home Directory"
1838 'action (lambda (_button) (dired "~"))
1839 'follow-link t)
1840 (insert "\tOpen your home directory, to operate on its files\n")
1841 (insert-button "Customize Startup"
1842 'action (lambda (_button) (customize-group 'initialization))
1843 'follow-link t)
1844 (insert "\tChange initialization settings including this screen\n")
1846 (insert "\n" (emacs-version)
1847 "\n" emacs-copyright))
1849 ;; No mouse menus, so give help using kbd commands.
1850 (defun normal-no-mouse-startup-screen ()
1852 ;; If keys have their default meanings,
1853 ;; use precomputed string to save lots of time.
1854 (let* ((c-h-accessible
1855 ;; If normal-erase-is-backspace is used on a tty, there's
1856 ;; no way to invoke C-h and you have to use F1 instead.
1857 (or (not (char-table-p keyboard-translate-table))
1858 (eq (aref keyboard-translate-table ?\C-h) ?\C-h)))
1859 (minor-mode-overriding-map-alist
1860 (cons (cons (not c-h-accessible)
1861 ;; If C-h can't be invoked, temporarily disable its
1862 ;; binding, so where-is uses alternative bindings.
1863 (let ((map (make-sparse-keymap)))
1864 (define-key map [?\C-h] 'undefined)
1865 map))
1866 minor-mode-overriding-map-alist)))
1868 (insert (format "\nGet help\t %s\n"
1869 (let ((where (where-is-internal 'help-command nil t)))
1870 (cond
1871 ((equal where [?\C-h])
1872 "C-h (Hold down CTRL and press h)")
1873 (where (key-description where))
1874 (t "M-x help")))))
1875 (insert-button "Emacs manual"
1876 'action (lambda (_button) (info-emacs-manual))
1877 'follow-link t)
1878 (insert (substitute-command-keys"\t \\[info-emacs-manual]\t"))
1879 (insert-button "Browse manuals"
1880 'action (lambda (_button) (Info-directory))
1881 'follow-link t)
1882 (insert (substitute-command-keys "\t \\[info]\n"))
1883 (insert-button "Emacs tutorial"
1884 'action (lambda (_button) (help-with-tutorial))
1885 'follow-link t)
1886 (insert (substitute-command-keys
1887 "\t \\[help-with-tutorial]\tUndo changes\t \\[undo]\n"))
1888 (insert-button "Buy manuals"
1889 'action (lambda (_button) (view-order-manuals))
1890 'follow-link t)
1891 (insert (substitute-command-keys
1892 "\t \\[view-order-manuals]\tExit Emacs\t \\[save-buffers-kill-terminal]")))
1894 ;; Say how to use the menu bar with the keyboard.
1895 (insert "\n")
1896 (insert-button "Activate menubar"
1897 'action (lambda (_button) (tmm-menubar))
1898 'follow-link t)
1899 (if (and (eq (key-binding "\M-`") 'tmm-menubar)
1900 (eq (key-binding [f10]) 'tmm-menubar))
1901 (insert " F10 or ESC ` or M-`")
1902 (insert (substitute-command-keys " \\[tmm-menubar]")))
1904 ;; Many users seem to have problems with these.
1905 (insert "
1906 \(`C-' means use the CTRL key. `M-' means use the Meta (or Alt) key.
1907 If you have no Meta key, you may instead type ESC followed by the character.)")
1909 ;; Insert links to useful tasks
1910 (insert "\nUseful tasks:\n")
1912 (insert-button "Visit New File"
1913 'action (lambda (_button) (call-interactively 'find-file))
1914 'follow-link t)
1915 (insert "\t\t\t")
1916 (insert-button "Open Home Directory"
1917 'action (lambda (_button) (dired "~"))
1918 'follow-link t)
1919 (insert "\n")
1921 (insert-button "Customize Startup"
1922 'action (lambda (_button) (customize-group 'initialization))
1923 'follow-link t)
1924 (insert "\t\t")
1925 (insert-button "Open *scratch* buffer"
1926 'action (lambda (_button) (switch-to-buffer
1927 (get-buffer-create "*scratch*")))
1928 'follow-link t)
1929 (insert "\n")
1930 (insert "\n" (emacs-version) "\n" emacs-copyright "\n")
1932 (if (and (eq (key-binding "\C-h\C-c") 'describe-copying)
1933 (eq (key-binding "\C-h\C-d") 'describe-distribution)
1934 (eq (key-binding "\C-h\C-w") 'describe-no-warranty))
1935 (progn
1936 (insert
1938 GNU Emacs comes with ABSOLUTELY NO WARRANTY; type C-h C-w for ")
1939 (insert-button "full details"
1940 'action (lambda (_button) (describe-no-warranty))
1941 'follow-link t)
1942 (insert ".
1943 Emacs is Free Software--Free as in Freedom--so you can redistribute copies
1944 of Emacs and modify it; type C-h C-c to see ")
1945 (insert-button "the conditions"
1946 'action (lambda (_button) (describe-copying))
1947 'follow-link t)
1948 (insert ".
1949 Type C-h C-d for information on ")
1950 (insert-button "getting the latest version"
1951 'action (lambda (_button) (describe-distribution))
1952 'follow-link t)
1953 (insert "."))
1954 (insert (substitute-command-keys
1956 GNU Emacs comes with ABSOLUTELY NO WARRANTY; type \\[describe-no-warranty] for "))
1957 (insert-button "full details"
1958 'action (lambda (_button) (describe-no-warranty))
1959 'follow-link t)
1960 (insert (substitute-command-keys ".
1961 Emacs is Free Software--Free as in Freedom--so you can redistribute copies
1962 of Emacs and modify it; type \\[describe-copying] to see "))
1963 (insert-button "the conditions"
1964 'action (lambda (_button) (describe-copying))
1965 'follow-link t)
1966 (insert (substitute-command-keys".
1967 Type \\[describe-distribution] for information on "))
1968 (insert-button "getting the latest version"
1969 'action (lambda (_button) (describe-distribution))
1970 'follow-link t)
1971 (insert ".")))
1973 (defun normal-about-screen ()
1974 (insert "\n" (emacs-version) "\n" emacs-copyright "\n\n")
1976 (insert "To follow a link, click Mouse-1 on it, or move to it and type RET.\n\n")
1978 (insert-button "Authors"
1979 'action
1980 (lambda (_button)
1981 (view-file (expand-file-name "AUTHORS" data-directory))
1982 (goto-char (point-min)))
1983 'follow-link t)
1984 (insert "\t\tMany people have contributed code included in GNU Emacs\n")
1986 (insert-button "Contributing"
1987 'action
1988 (lambda (_button)
1989 (view-file (expand-file-name "CONTRIBUTE" data-directory))
1990 (goto-char (point-min)))
1991 'follow-link t)
1992 (insert "\tHow to contribute improvements to Emacs\n\n")
1994 (insert-button "GNU and Freedom"
1995 'action (lambda (_button) (describe-gnu-project))
1996 'follow-link t)
1997 (insert "\t\tWhy we developed GNU Emacs and the GNU system\n")
1999 (insert-button "Absence of Warranty"
2000 'action (lambda (_button) (describe-no-warranty))
2001 'follow-link t)
2002 (insert "\tGNU Emacs comes with ABSOLUTELY NO WARRANTY\n")
2004 (insert-button "Copying Conditions"
2005 'action (lambda (_button) (describe-copying))
2006 'follow-link t)
2007 (insert "\tConditions for redistributing and changing Emacs\n")
2009 (insert-button "Getting New Versions"
2010 'action (lambda (_button) (describe-distribution))
2011 'follow-link t)
2012 (insert "\tHow to get the latest version of GNU Emacs\n")
2014 (insert-button "More Manuals / Ordering Manuals"
2015 'action (lambda (_button) (view-order-manuals))
2016 'follow-link t)
2017 (insert "\tBuying printed manuals from the FSF\n"))
2019 (defun startup-echo-area-message ()
2020 (cond ((daemonp)
2021 "Starting Emacs daemon.")
2022 ((eq (key-binding "\C-h\C-a") 'about-emacs)
2023 "For information about GNU Emacs and the GNU system, type C-h C-a.")
2025 (substitute-command-keys
2026 "For information about GNU Emacs and the GNU system, type \
2027 \\[about-emacs]."))))
2029 (defun display-startup-echo-area-message ()
2030 (let ((resize-mini-windows t))
2031 (or noninteractive ;(input-pending-p) init-file-had-error
2032 ;; t if the init file says to inhibit the echo area startup message.
2033 (and inhibit-startup-echo-area-message
2034 user-init-file
2035 (or (and (get 'inhibit-startup-echo-area-message 'saved-value)
2036 (equal inhibit-startup-echo-area-message
2037 (if (equal init-file-user "")
2038 (user-login-name)
2039 init-file-user)))
2040 ;; Wasn't set with custom; see if .emacs has a setq.
2041 (condition-case nil
2042 (with-temp-buffer
2043 (insert-file-contents user-init-file)
2044 (re-search-forward
2045 (concat
2046 "([ \t\n]*setq[ \t\n]+"
2047 "inhibit-startup-echo-area-message[ \t\n]+"
2048 (regexp-quote
2049 (prin1-to-string
2050 (if (equal init-file-user "")
2051 (user-login-name)
2052 init-file-user)))
2053 "[ \t\n]*)")
2054 nil t))
2055 (error nil))))
2056 (message "%s" (startup-echo-area-message)))))
2058 (defun display-startup-screen (&optional concise)
2059 "Display startup screen according to display.
2060 A fancy display is used on graphic displays, normal otherwise.
2062 If CONCISE is non-nil, display a concise version of the startup
2063 screen."
2064 ;; Prevent recursive calls from server-process-filter.
2065 (if (not (get-buffer "*GNU Emacs*"))
2066 (if (use-fancy-splash-screens-p)
2067 (fancy-startup-screen concise)
2068 (normal-splash-screen t concise))))
2070 (defun display-about-screen ()
2071 "Display the *About GNU Emacs* buffer.
2072 A fancy display is used on graphic displays, normal otherwise."
2073 (interactive)
2074 (if (use-fancy-splash-screens-p)
2075 (fancy-about-screen)
2076 (normal-splash-screen nil)))
2078 (defalias 'about-emacs 'display-about-screen)
2079 (defalias 'display-splash-screen 'display-startup-screen)
2081 (defun command-line-1 (args-left)
2082 "A subroutine of `command-line'."
2083 (display-startup-echo-area-message)
2084 (when (and pure-space-overflow
2085 (not noninteractive))
2086 (display-warning
2087 'initialization
2088 "Building Emacs overflowed pure space.\
2089 (See the node Pure Storage in the Lisp manual for details.)"
2090 :warning))
2092 (let ((file-count 0)
2093 (command-line-args-left args-left)
2094 first-file-buffer)
2095 (when command-line-args-left
2096 ;; We have command args; process them.
2097 (let ((dir command-line-default-directory)
2099 ;; This approach loses for "-batch -L DIR --eval "(require foo)",
2100 ;; if foo is intended to be found in DIR.
2102 ;; ;; The directories listed in --directory/-L options will *appear*
2103 ;; ;; at the front of `load-path' in the order they appear on the
2104 ;; ;; command-line. We cannot do this by *placing* them at the front
2105 ;; ;; in the order they appear, so we need this variable to hold them,
2106 ;; ;; temporarily.
2107 ;; extra-load-path
2109 ;; To DTRT we keep track of the splice point and modify `load-path'
2110 ;; straight away upon any --directory/-L option.
2111 splice
2112 just-files ;; t if this follows the magic -- option.
2113 ;; This includes our standard options' long versions
2114 ;; and long versions of what's on command-switch-alist.
2115 (longopts
2116 (append '("--funcall" "--load" "--insert" "--kill"
2117 "--directory" "--eval" "--execute" "--no-splash"
2118 "--find-file" "--visit" "--file" "--no-desktop")
2119 (mapcar (lambda (elt) (concat "-" (car elt)))
2120 command-switch-alist)))
2121 (line 0)
2122 (column 0))
2124 ;; Add the long X options to longopts.
2125 (dolist (tem command-line-x-option-alist)
2126 (if (string-match "^--" (car tem))
2127 (push (car tem) longopts)))
2129 ;; Add the long NS options to longopts.
2130 (dolist (tem command-line-ns-option-alist)
2131 (if (string-match "^--" (car tem))
2132 (push (list (car tem)) longopts)))
2134 ;; Loop, processing options.
2135 (while command-line-args-left
2136 (let* ((argi (car command-line-args-left))
2137 (orig-argi argi)
2138 argval completion)
2139 (setq command-line-args-left (cdr command-line-args-left))
2141 ;; Do preliminary decoding of the option.
2142 (if just-files
2143 ;; After --, don't look for options; treat all args as files.
2144 (setq argi "")
2145 ;; Convert long options to ordinary options
2146 ;; and separate out an attached option argument into argval.
2147 (when (string-match "\\`\\(--[^=]*\\)=" argi)
2148 (setq argval (substring argi (match-end 0))
2149 argi (match-string 1 argi)))
2150 (when (string-match "\\`--?[^-]" orig-argi)
2151 (setq completion (try-completion argi longopts))
2152 (if (eq completion t)
2153 (setq argi (substring argi 1))
2154 (if (stringp completion)
2155 (let ((elt (member completion longopts)))
2156 (or elt
2157 (error "Option `%s' is ambiguous" argi))
2158 (setq argi (substring (car elt) 1)))
2159 (setq argval nil
2160 argi orig-argi)))))
2162 ;; Execute the option.
2163 (cond ((setq tem (assoc argi command-switch-alist))
2164 (if argval
2165 (let ((command-line-args-left
2166 (cons argval command-line-args-left)))
2167 (funcall (cdr tem) argi))
2168 (funcall (cdr tem) argi)))
2170 ((equal argi "-no-splash")
2171 (setq inhibit-startup-screen t))
2173 ((member argi '("-f" ; what the manual claims
2174 "-funcall"
2175 "-e")) ; what the source used to say
2176 (setq inhibit-startup-screen t)
2177 (setq tem (intern (or argval (pop command-line-args-left))))
2178 (if (commandp tem)
2179 (command-execute tem)
2180 (funcall tem)))
2182 ((member argi '("-eval" "-execute"))
2183 (setq inhibit-startup-screen t)
2184 (eval (read (or argval (pop command-line-args-left)))))
2186 ((member argi '("-L" "-directory"))
2187 (setq tem (expand-file-name
2188 (command-line-normalize-file-name
2189 (or argval (pop command-line-args-left)))))
2190 (cond (splice (setcdr splice (cons tem (cdr splice)))
2191 (setq splice (cdr splice)))
2192 (t (setq load-path (cons tem load-path)
2193 splice load-path))))
2195 ((member argi '("-l" "-load"))
2196 (let* ((file (command-line-normalize-file-name
2197 (or argval (pop command-line-args-left))))
2198 ;; Take file from default dir if it exists there;
2199 ;; otherwise let `load' search for it.
2200 (file-ex (expand-file-name file)))
2201 (when (file-exists-p file-ex)
2202 (setq file file-ex))
2203 (load file nil t)))
2205 ;; This is used to handle -script. It's not clear
2206 ;; we need to document it (it is totally internal).
2207 ((member argi '("-scriptload"))
2208 (let* ((file (command-line-normalize-file-name
2209 (or argval (pop command-line-args-left))))
2210 ;; Take file from default dir.
2211 (file-ex (expand-file-name file)))
2212 (load file-ex nil t t)))
2214 ((equal argi "-insert")
2215 (setq inhibit-startup-screen t)
2216 (setq tem (or argval (pop command-line-args-left)))
2217 (or (stringp tem)
2218 (error "File name omitted from `-insert' option"))
2219 (insert-file-contents (command-line-normalize-file-name tem)))
2221 ((equal argi "-kill")
2222 (kill-emacs t))
2224 ;; This is for when they use --no-desktop with -q, or
2225 ;; don't load Desktop in their .emacs. If desktop.el
2226 ;; _is_ loaded, it will handle this switch, and we
2227 ;; won't see it by the time we get here.
2228 ((equal argi "-no-desktop")
2229 (message "\"--no-desktop\" ignored because the Desktop package is not loaded"))
2231 ((string-match "^\\+[0-9]+\\'" argi)
2232 (setq line (string-to-number argi)))
2234 ((string-match "^\\+\\([0-9]+\\):\\([0-9]+\\)\\'" argi)
2235 (setq line (string-to-number (match-string 1 argi))
2236 column (string-to-number (match-string 2 argi))))
2238 ((setq tem (assoc orig-argi command-line-x-option-alist))
2239 ;; Ignore X-windows options and their args if not using X.
2240 (setq command-line-args-left
2241 (nthcdr (nth 1 tem) command-line-args-left)))
2243 ((setq tem (assoc orig-argi command-line-ns-option-alist))
2244 ;; Ignore NS-windows options and their args if not using NS.
2245 (setq command-line-args-left
2246 (nthcdr (nth 1 tem) command-line-args-left)))
2248 ((member argi '("-find-file" "-file" "-visit"))
2249 (setq inhibit-startup-screen t)
2250 ;; An explicit option to specify visiting a file.
2251 (setq tem (or argval (pop command-line-args-left)))
2252 (unless (stringp tem)
2253 (error "File name omitted from `%s' option" argi))
2254 (setq file-count (1+ file-count))
2255 (let ((file (expand-file-name
2256 (command-line-normalize-file-name tem)
2257 dir)))
2258 (if (= file-count 1)
2259 (setq first-file-buffer (find-file file))
2260 (find-file-other-window file)))
2261 (unless (zerop line)
2262 (goto-char (point-min))
2263 (forward-line (1- line)))
2264 (setq line 0)
2265 (unless (< column 1)
2266 (move-to-column (1- column)))
2267 (setq column 0))
2269 ;; These command lines now have no effect.
2270 ((string-match "\\`--?\\(no-\\)?\\(uni\\|multi\\)byte$" argi)
2271 (display-warning 'initialization
2272 (format "Ignoring obsolete arg %s" argi)))
2274 ((equal argi "--")
2275 (setq just-files t))
2277 ;; We have almost exhausted our options. See if the
2278 ;; user has made any other command-line options available
2279 (let ((hooks command-line-functions)
2280 (did-hook nil))
2281 (while (and hooks
2282 (not (setq did-hook (funcall (car hooks)))))
2283 (setq hooks (cdr hooks)))
2284 (if (not did-hook)
2285 ;; Presume that the argument is a file name.
2286 (progn
2287 (if (string-match "\\`-" argi)
2288 (error "Unknown option `%s'" argi))
2289 (unless initial-window-system
2290 (setq inhibit-startup-screen t))
2291 (setq file-count (1+ file-count))
2292 (let ((file
2293 (expand-file-name
2294 (command-line-normalize-file-name orig-argi)
2295 dir)))
2296 (cond ((= file-count 1)
2297 (setq first-file-buffer (find-file file)))
2298 (inhibit-startup-screen
2299 (find-file-other-window file))
2300 (t (find-file file))))
2301 (unless (zerop line)
2302 (goto-char (point-min))
2303 (forward-line (1- line)))
2304 (setq line 0)
2305 (unless (< column 1)
2306 (move-to-column (1- column)))
2307 (setq column 0))))))
2308 ;; In unusual circumstances, the execution of Lisp code due
2309 ;; to command-line options can cause the last visible frame
2310 ;; to be deleted. In this case, kill emacs to avoid an
2311 ;; abort later.
2312 (unless (frame-live-p (selected-frame)) (kill-emacs nil))))))
2314 (when (eq initial-buffer-choice t)
2315 ;; When initial-buffer-choice equals t make sure that *scratch*
2316 ;; exists.
2317 (get-buffer-create "*scratch*"))
2319 ;; If *scratch* exists and is empty, insert initial-scratch-message.
2320 ;; Do this before switching to *scratch* below to handle bug#9605.
2321 (and initial-scratch-message
2322 (get-buffer "*scratch*")
2323 (with-current-buffer "*scratch*"
2324 (when (zerop (buffer-size))
2325 (insert initial-scratch-message)
2326 (set-buffer-modified-p nil))))
2328 (when initial-buffer-choice
2329 (cond ((eq initial-buffer-choice t)
2330 (switch-to-buffer (get-buffer-create "*scratch*")))
2331 ((stringp initial-buffer-choice)
2332 (find-file initial-buffer-choice))))
2334 (if (or inhibit-startup-screen
2335 initial-buffer-choice
2336 noninteractive
2337 (daemonp)
2338 inhibit-x-resources)
2340 ;; Not displaying a startup screen. If 3 or more files
2341 ;; visited, and not all visible, show user what they all are.
2342 (and (> file-count 2)
2343 (not noninteractive)
2344 (not inhibit-startup-buffer-menu)
2345 (or (get-buffer-window first-file-buffer)
2346 (list-buffers)))
2348 ;; Display a startup screen, after some preparations.
2350 ;; If there are no switches to process, we might as well
2351 ;; run this hook now, and there may be some need to do it
2352 ;; before doing any output.
2353 (run-hooks 'emacs-startup-hook)
2354 (and term-setup-hook
2355 (run-hooks 'term-setup-hook))
2356 (setq inhibit-startup-hooks t)
2358 ;; It's important to notice the user settings before we
2359 ;; display the startup message; otherwise, the settings
2360 ;; won't take effect until the user gives the first
2361 ;; keystroke, and that's distracting.
2362 (when (fboundp 'frame-notice-user-settings)
2363 (frame-notice-user-settings))
2365 ;; If there are no switches to process, we might as well
2366 ;; run this hook now, and there may be some need to do it
2367 ;; before doing any output.
2368 (when window-setup-hook
2369 (run-hooks 'window-setup-hook)
2370 ;; Don't let the hook be run twice.
2371 (setq window-setup-hook nil))
2373 ;; ;; Do this now to avoid an annoying delay if the user
2374 ;; ;; clicks the menu bar during the sit-for.
2375 ;; (when (display-popup-menus-p)
2376 ;; (precompute-menubar-bindings))
2377 ;; (with-no-warnings
2378 ;; (setq menubar-bindings-done t))
2380 (display-startup-screen (> file-count 0)))))
2382 (defun command-line-normalize-file-name (file)
2383 "Collapse multiple slashes to one, to handle non-Emacs file names."
2384 (save-match-data
2385 ;; Use arg 1 so that we don't collapse // at the start of the file name.
2386 ;; That is significant on some systems.
2387 ;; However, /// at the beginning is supposed to mean just /, not //.
2388 (if (string-match "^///+" file)
2389 (setq file (replace-match "/" t t file)))
2390 (and (memq system-type '(ms-dos windows-nt))
2391 (string-match "^[A-Za-z]:\\(\\\\[\\\\/]\\)" file) ; C:\/ or C:\\
2392 (setq file (replace-match "/" t t file 1)))
2393 (while (string-match "//+" file 1)
2394 (setq file (replace-match "/" t t file)))
2395 file))
2397 ;;; startup.el ends here