Merge from trunk; up to 2013-02-18T01:30:27Z!monnier@iro.umontreal.ca.
[emacs.git] / lisp / startup.el
blobad31a7a2a45c6ecb5ff7a0c69560584128740987
1 ;;; startup.el --- process Emacs shell arguments -*- lexical-binding: t -*-
3 ;; Copyright (C) 1985-1986, 1992, 1994-2013 Free Software Foundation,
4 ;; Inc.
6 ;; Maintainer: FSF
7 ;; Keywords: internal
8 ;; Package: emacs
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software: you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation, either version 3 of the License, or
15 ;; (at your option) any later version.
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 ;;; Commentary:
27 ;; This file parses the command line and gets Emacs running. Options
28 ;; on the command line are handled in precedence order. For priorities
29 ;; see the structure standard_args in the emacs.c file.
31 ;;; Code:
33 (setq top-level '(normal-top-level))
35 (defvar command-line-processed nil
36 "Non-nil once command line has been processed.")
38 (defgroup initialization nil
39 "Emacs start-up procedure."
40 :group 'environment)
42 (defcustom initial-buffer-choice nil
43 "Buffer to show after starting Emacs.
44 If the value is nil and `inhibit-startup-screen' is nil, show the
45 startup screen. If the value is a string, switch to a buffer
46 visiting the file or directory specified by that string. If the
47 value is a function, switch to the buffer returned by that
48 function. If t, open the `*scratch*' buffer.
50 A string value also causes emacsclient to open the specified file
51 or directory when no target file is specified."
52 :type '(choice
53 (const :tag "Startup screen" nil)
54 (directory :tag "Directory" :value "~/")
55 (file :tag "File" :value "~/.emacs")
56 (function :tag "Function")
57 (const :tag "Lisp scratch buffer" t))
58 :version "24.4"
59 :group 'initialization)
61 (defcustom inhibit-startup-screen nil
62 "Non-nil inhibits the startup screen.
64 This is for use in your personal init file (but NOT site-start.el),
65 once you are familiar with the contents of the startup screen."
66 :type 'boolean
67 :group 'initialization)
69 (defvaralias 'inhibit-splash-screen 'inhibit-startup-screen)
70 (defvaralias 'inhibit-startup-message 'inhibit-startup-screen)
72 (defvar startup-screen-inhibit-startup-screen nil)
74 ;; FIXME? Why does this get such weirdly extreme treatment, when the
75 ;; more important inhibit-startup-screen does not.
76 (defcustom inhibit-startup-echo-area-message nil
77 "Non-nil inhibits the initial startup echo area message.
78 Setting this variable takes effect
79 only if you do it with the customization buffer
80 or if your init file contains a line of this form:
81 (setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\")
82 If your init file is byte-compiled, use the following form
83 instead:
84 (eval '(setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\"))
85 Thus, someone else using a copy of your init file will see the
86 startup message unless he personally acts to inhibit it."
87 :type '(choice (const :tag "Don't inhibit")
88 (string :tag "Enter your user name, to inhibit"))
89 :group 'initialization)
91 (defcustom inhibit-default-init nil
92 "Non-nil inhibits loading the `default' library."
93 :type 'boolean
94 :group 'initialization)
96 (defcustom inhibit-startup-buffer-menu nil
97 "Non-nil inhibits display of buffer list when more than 2 files are loaded."
98 :type 'boolean
99 :group 'initialization)
101 (defvar command-switch-alist nil
102 "Alist of command-line switches.
103 Elements look like (SWITCH-STRING . HANDLER-FUNCTION).
104 HANDLER-FUNCTION receives the switch string as its sole argument;
105 the remaining command-line args are in the variable `command-line-args-left'.")
107 (defvar command-line-args-left nil
108 "List of command-line args not yet processed.")
110 (defvaralias 'argv 'command-line-args-left
111 "List of command-line args not yet processed.
112 This is a convenience alias, so that one can write \(pop argv\)
113 inside of --eval command line arguments in order to access
114 following arguments.")
115 (internal-make-var-non-special 'argv)
117 (defvar argi nil
118 "Current command-line argument.")
119 (internal-make-var-non-special 'argi)
121 (defvar command-line-functions nil ;; lrs 7/31/89
122 "List of functions to process unrecognized command-line arguments.
123 Each function should access the dynamically bound variables
124 `argi' (the current argument) and `command-line-args-left' (the remaining
125 arguments). The function should return non-nil only if it recognizes and
126 processes `argi'. If it does so, it may consume successive arguments by
127 altering `command-line-args-left' to remove them.")
129 (defvar command-line-default-directory nil
130 "Default directory to use for command line arguments.
131 This is normally copied from `default-directory' when Emacs starts.")
133 ;; This is here, rather than in x-win.el, so that we can ignore these
134 ;; options when we are not using X.
135 (defconst command-line-x-option-alist
136 '(("-bw" 1 x-handle-numeric-switch border-width)
137 ("-d" 1 x-handle-display)
138 ("-display" 1 x-handle-display)
139 ("-name" 1 x-handle-name-switch)
140 ("-title" 1 x-handle-switch title)
141 ("-T" 1 x-handle-switch title)
142 ("-r" 0 x-handle-switch reverse t)
143 ("-rv" 0 x-handle-switch reverse t)
144 ("-reverse" 0 x-handle-switch reverse t)
145 ("-reverse-video" 0 x-handle-switch reverse t)
146 ("-fn" 1 x-handle-switch font)
147 ("-font" 1 x-handle-switch font)
148 ("-fs" 0 x-handle-initial-switch fullscreen fullboth)
149 ("-fw" 0 x-handle-initial-switch fullscreen fullwidth)
150 ("-fh" 0 x-handle-initial-switch fullscreen fullheight)
151 ("-mm" 0 x-handle-initial-switch fullscreen maximized)
152 ("-ib" 1 x-handle-numeric-switch internal-border-width)
153 ("-g" 1 x-handle-geometry)
154 ("-lsp" 1 x-handle-numeric-switch line-spacing)
155 ("-geometry" 1 x-handle-geometry)
156 ("-fg" 1 x-handle-switch foreground-color)
157 ("-foreground" 1 x-handle-switch foreground-color)
158 ("-bg" 1 x-handle-switch background-color)
159 ("-background" 1 x-handle-switch background-color)
160 ("-ms" 1 x-handle-switch mouse-color)
161 ("-nbi" 0 x-handle-switch icon-type nil)
162 ("-iconic" 0 x-handle-iconic)
163 ("-xrm" 1 x-handle-xrm-switch)
164 ("-cr" 1 x-handle-switch cursor-color)
165 ("-vb" 0 x-handle-switch vertical-scroll-bars t)
166 ("-hb" 0 x-handle-switch horizontal-scroll-bars t)
167 ("-bd" 1 x-handle-switch)
168 ("--border-width" 1 x-handle-numeric-switch border-width)
169 ("--display" 1 x-handle-display)
170 ("--name" 1 x-handle-name-switch)
171 ("--title" 1 x-handle-switch title)
172 ("--reverse-video" 0 x-handle-switch reverse t)
173 ("--font" 1 x-handle-switch font)
174 ("--fullscreen" 0 x-handle-initial-switch fullscreen fullboth)
175 ("--fullwidth" 0 x-handle-initial-switch fullscreen fullwidth)
176 ("--fullheight" 0 x-handle-initial-switch fullscreen fullheight)
177 ("--maximized" 0 x-handle-initial-switch fullscreen maximized)
178 ("--internal-border" 1 x-handle-numeric-switch internal-border-width)
179 ("--geometry" 1 x-handle-geometry)
180 ("--foreground-color" 1 x-handle-switch foreground-color)
181 ("--background-color" 1 x-handle-switch background-color)
182 ("--mouse-color" 1 x-handle-switch mouse-color)
183 ("--no-bitmap-icon" 0 x-handle-no-bitmap-icon)
184 ("--iconic" 0 x-handle-iconic)
185 ("--xrm" 1 x-handle-xrm-switch)
186 ("--cursor-color" 1 x-handle-switch cursor-color)
187 ("--vertical-scroll-bars" 0 x-handle-switch vertical-scroll-bars t)
188 ("--line-spacing" 1 x-handle-numeric-switch line-spacing)
189 ("--border-color" 1 x-handle-switch border-color)
190 ("--smid" 1 x-handle-smid)
191 ("--parent-id" 1 x-handle-parent-id))
192 "Alist of X Windows options.
193 Each element has the form
194 (NAME NUMARGS HANDLER FRAME-PARAM VALUE)
195 where NAME is the option name string, NUMARGS is the number of arguments
196 that the option accepts, HANDLER is a function to call to handle the option.
197 FRAME-PARAM (optional) is the frame parameter this option specifies,
198 and VALUE is the value which is given to that frame parameter
199 \(most options use the argument for this, so VALUE is not present).")
201 (defconst command-line-ns-option-alist
202 '(("-NSAutoLaunch" 1 ns-ignore-1-arg)
203 ("-NXAutoLaunch" 1 ns-ignore-1-arg)
204 ("-macosx" 0 ignore)
205 ("-NSHost" 1 ns-ignore-1-arg)
206 ("-_NSMachLaunch" 1 ns-ignore-1-arg)
207 ("-MachLaunch" 1 ns-ignore-1-arg)
208 ("-NXOpen" 1 ns-ignore-1-arg)
209 ("-NSOpen" 1 ns-handle-nxopen)
210 ("-NXOpenTemp" 1 ns-ignore-1-arg)
211 ("-NSOpenTemp" 1 ns-handle-nxopentemp)
212 ("-GSFilePath" 1 ns-handle-nxopen)
213 ;;("-bw" . x-handle-numeric-switch)
214 ;;("-d" . x-handle-display)
215 ;;("-display" . x-handle-display)
216 ("-name" 1 x-handle-name-switch)
217 ("-title" 1 x-handle-switch title)
218 ("-T" 1 x-handle-switch title)
219 ("-r" 0 x-handle-switch reverse t)
220 ("-rv" 0 x-handle-switch reverse t)
221 ("-reverse" 0 x-handle-switch reverse t)
222 ("-fn" 1 x-handle-switch font)
223 ("-font" 1 x-handle-switch font)
224 ("-ib" 1 x-handle-numeric-switch internal-border-width)
225 ("-g" 1 x-handle-geometry)
226 ("-geometry" 1 x-handle-geometry)
227 ("-fg" 1 x-handle-switch foreground-color)
228 ("-foreground" 1 x-handle-switch foreground-color)
229 ("-bg" 1 x-handle-switch background-color)
230 ("-background" 1 x-handle-switch background-color)
231 ; ("-ms" 1 x-handle-switch mouse-color)
232 ("-itype" 0 x-handle-switch icon-type t)
233 ("-i" 0 x-handle-switch icon-type t)
234 ("-iconic" 0 x-handle-iconic icon-type t)
235 ;;("-xrm" . x-handle-xrm-switch)
236 ("-cr" 1 x-handle-switch cursor-color)
237 ("-vb" 0 x-handle-switch vertical-scroll-bars t)
238 ("-hb" 0 x-handle-switch horizontal-scroll-bars t)
239 ("-bd" 1 x-handle-switch)
240 ;; ("--border-width" 1 x-handle-numeric-switch border-width)
241 ;; ("--display" 1 ns-handle-display)
242 ("--name" 1 x-handle-name-switch)
243 ("--title" 1 x-handle-switch title)
244 ("--reverse-video" 0 x-handle-switch reverse t)
245 ("--font" 1 x-handle-switch font)
246 ("--internal-border" 1 x-handle-numeric-switch internal-border-width)
247 ;; ("--geometry" 1 ns-handle-geometry)
248 ("--foreground-color" 1 x-handle-switch foreground-color)
249 ("--background-color" 1 x-handle-switch background-color)
250 ("--mouse-color" 1 x-handle-switch mouse-color)
251 ("--icon-type" 0 x-handle-switch icon-type t)
252 ("--iconic" 0 x-handle-iconic)
253 ;; ("--xrm" 1 ns-handle-xrm-switch)
254 ("--cursor-color" 1 x-handle-switch cursor-color)
255 ("--vertical-scroll-bars" 0 x-handle-switch vertical-scroll-bars t)
256 ("--border-color" 1 x-handle-switch border-width))
257 "Alist of NS options.
258 Each element has the form
259 (NAME NUMARGS HANDLER FRAME-PARAM VALUE)
260 where NAME is the option name string, NUMARGS is the number of arguments
261 that the option accepts, HANDLER is a function to call to handle the option.
262 FRAME-PARAM (optional) is the frame parameter this option specifies,
263 and VALUE is the value which is given to that frame parameter
264 \(most options use the argument for this, so VALUE is not present).")
267 (defvar before-init-hook nil
268 "Normal hook run after handling urgent options but before loading init files.")
270 (defvar after-init-hook nil
271 "Normal hook run after initializing the Emacs session.
272 It is run after Emacs loads the init file, `default' library, the
273 abbrevs file, and additional Lisp packages (if any), and setting
274 the value of `after-init-time'.
276 There is no `condition-case' around the running of this hook;
277 therefore, if `debug-on-error' is non-nil, an error in one of
278 these functions will invoke the debugger.")
280 (defvar emacs-startup-hook nil
281 "Normal hook run after loading init files and handling the command line.")
283 (defvar term-setup-hook nil
284 "Normal hook run after loading terminal-specific Lisp code.
285 It also follows `emacs-startup-hook'. This hook exists for users to set,
286 so as to override the definitions made by the terminal-specific file.
287 Emacs never sets this variable itself.")
289 (defvar inhibit-startup-hooks nil
290 "Non-nil means don't run `term-setup-hook' and `emacs-startup-hook'.
291 This is because we already did so.")
293 (defvar keyboard-type nil
294 "The brand of keyboard you are using.
295 This variable is used to define the proper function and keypad
296 keys for use under X. It is used in a fashion analogous to the
297 environment variable TERM.")
299 (defvar window-setup-hook nil
300 "Normal hook run to initialize window system display.
301 Emacs runs this hook after processing the command line arguments and loading
302 the user's init file.")
304 (defcustom initial-major-mode 'lisp-interaction-mode
305 "Major mode command symbol to use for the initial `*scratch*' buffer."
306 :type 'function
307 :group 'initialization)
309 (defvar init-file-user nil
310 "Identity of user whose init file is or was read.
311 The value is nil if `-q' or `--no-init-file' was specified,
312 meaning do not load any init file.
314 Otherwise, the value may be an empty string, meaning
315 use the init file for the user who originally logged in,
316 or it may be a string containing a user's name meaning
317 use that person's init file.
319 In either of the latter cases, `(concat \"~\" init-file-user \"/\")'
320 evaluates to the name of the directory where the init file was
321 looked for.
323 Setting `init-file-user' does not prevent Emacs from loading
324 `site-start.el'. The only way to do that is to use `--no-site-file'.")
326 (defcustom site-run-file (purecopy "site-start")
327 "File containing site-wide run-time initializations.
328 This file is loaded at run-time before `~/.emacs'. It contains inits
329 that need to be in place for the entire site, but which, due to their
330 higher incidence of change, don't make sense to load into Emacs's
331 dumped image. Thus, the run-time load order is: 1. file described in
332 this variable, if non-nil; 2. `~/.emacs'; 3. `default.el'.
334 Don't use the `site-start.el' file for things some users may not like.
335 Put them in `default.el' instead, so that users can more easily
336 override them. Users can prevent loading `default.el' with the `-q'
337 option or by setting `inhibit-default-init' in their own init files,
338 but inhibiting `site-start.el' requires `--no-site-file', which
339 is less convenient.
341 This variable is defined for customization so as to make
342 it visible in the relevant context. However, actually customizing it
343 is not allowed, since it would not work anyway. The only way to set
344 this variable usefully is to set it while building and dumping Emacs."
345 :type '(choice (const :tag "none" nil) string)
346 :group 'initialization
347 :initialize 'custom-initialize-default
348 :set (lambda (_variable _value)
349 (error "Customizing `site-run-file' does not work")))
351 (defcustom mail-host-address nil
352 "Name of this machine, for purposes of naming users.
353 If non-nil, Emacs uses this instead of `system-name' when constructing
354 email addresses."
355 :type '(choice (const nil) string)
356 :group 'mail)
358 (defcustom user-mail-address (if command-line-processed
359 (or (getenv "EMAIL")
360 (concat (user-login-name) "@"
361 (or mail-host-address
362 (system-name))))
363 ;; Empty string means "not set yet".
365 "Full mailing address of this user.
366 This is initialized with environment variable `EMAIL' or, as a
367 fallback, using `mail-host-address'. This is done after your
368 init file is read, in case it sets `mail-host-address'."
369 :type 'string
370 :group 'mail)
372 (defcustom auto-save-list-file-prefix
373 (cond ((eq system-type 'ms-dos)
374 ;; MS-DOS cannot have initial dot, and allows only 8.3 names
375 (concat user-emacs-directory "auto-save.list/_s"))
377 (concat user-emacs-directory "auto-save-list/.saves-")))
378 "Prefix for generating `auto-save-list-file-name'.
379 This is used after reading your init file to initialize
380 `auto-save-list-file-name', by appending Emacs's pid and the system name,
381 if you have not already set `auto-save-list-file-name' yourself.
382 Directories in the prefix will be created if necessary.
383 Set this to nil if you want to prevent `auto-save-list-file-name'
384 from being initialized."
385 :type '(choice (const :tag "Don't record a session's auto save list" nil)
386 string)
387 :group 'auto-save)
389 (defvar emacs-basic-display nil)
391 (defvar init-file-debug nil)
393 (defvar init-file-had-error nil
394 "Non-nil if there was an error loading the user's init file.")
396 (defvar normal-top-level-add-subdirs-inode-list nil)
398 (defvar no-blinking-cursor nil)
400 (defvar default-frame-background-mode)
402 (defvar pure-space-overflow nil
403 "Non-nil if building Emacs overflowed pure space.")
405 (defvar pure-space-overflow-message (purecopy "\
406 Warning Warning!!! Pure space overflow !!!Warning Warning
407 \(See the node Pure Storage in the Lisp manual for details.)\n"))
409 (defcustom tutorial-directory
410 (file-name-as-directory (expand-file-name "tutorials" data-directory))
411 "Directory containing the Emacs TUTORIAL files."
412 :group 'installation
413 :type 'directory
414 :initialize 'custom-initialize-delay)
416 (defconst package-subdirectory-regexp
417 "\\([^.].*?\\)-\\([0-9]+\\(?:[.][0-9]+\\|\\(?:pre\\|beta\\|alpha\\)[0-9]+\\)*\\)"
418 "Regular expression matching the name of a package subdirectory.
419 The first subexpression is the package name.
420 The second subexpression is the version string.
422 The regexp should not contain a starting \"\\`\" or a trailing
423 \"\\'\"; those are added automatically by callers.")
425 (defun normal-top-level-add-subdirs-to-load-path ()
426 "Add all subdirectories of `default-directory' to `load-path'.
427 More precisely, this uses only the subdirectories whose names
428 start with letters or digits; it excludes any subdirectory named `RCS'
429 or `CVS', and any subdirectory that contains a file named `.nosearch'."
430 (let (dirs
431 attrs
432 (pending (list default-directory)))
433 ;; This loop does a breadth-first tree walk on DIR's subtree,
434 ;; putting each subdir into DIRS as its contents are examined.
435 (while pending
436 (push (pop pending) dirs)
437 (let* ((this-dir (car dirs))
438 (contents (directory-files this-dir))
439 (default-directory this-dir)
440 (canonicalized (if (fboundp 'untranslated-canonical-name)
441 (untranslated-canonical-name this-dir))))
442 ;; The Windows version doesn't report meaningful inode numbers, so
443 ;; use the canonicalized absolute file name of the directory instead.
444 (setq attrs (or canonicalized
445 (nthcdr 10 (file-attributes this-dir))))
446 (unless (member attrs normal-top-level-add-subdirs-inode-list)
447 (push attrs normal-top-level-add-subdirs-inode-list)
448 (dolist (file contents)
449 (and (string-match "\\`[[:alnum:]]" file)
450 ;; The lower-case variants of RCS and CVS are for DOS/Windows.
451 (not (member file '("RCS" "CVS" "rcs" "cvs")))
452 ;; Avoid doing a `stat' when it isn't necessary because
453 ;; that can cause trouble when an NFS server is down.
454 (not (string-match "\\.elc?\\'" file))
455 (file-directory-p file)
456 (let ((expanded (expand-file-name file)))
457 (or (file-exists-p (expand-file-name ".nosearch" expanded))
458 (setq pending (nconc pending (list expanded))))))))))
459 (normal-top-level-add-to-load-path (cdr (nreverse dirs)))))
461 (defun normal-top-level-add-to-load-path (dirs)
462 "This function is called from a subdirs.el file.
463 It assumes that `default-directory' is the directory in which the
464 subdirs.el file exists, and it adds to `load-path' the subdirs of
465 that directory as specified in DIRS. Normally the elements of
466 DIRS are relative."
467 (let ((tail load-path)
468 (thisdir (directory-file-name default-directory)))
469 (while (and tail
470 ;;Don't go all the way to the nil terminator.
471 (cdr tail)
472 (not (equal thisdir (car tail)))
473 (not (and (memq system-type '(ms-dos windows-nt))
474 (equal (downcase thisdir) (downcase (car tail))))))
475 (setq tail (cdr tail)))
476 ;;Splice the new section in.
477 (when tail
478 (setcdr tail (append (mapcar 'expand-file-name dirs) (cdr tail))))))
480 (defun normal-top-level ()
481 "Emacs calls this function when it first starts up.
482 It sets `command-line-processed', processes the command-line,
483 reads the initialization files, etc.
484 It is the default value of the variable `top-level'."
485 (if command-line-processed
486 (message "Back to top level.")
487 (setq command-line-processed t)
488 (let ((dir default-directory))
489 (with-current-buffer "*Messages*"
490 ;; Make it easy to do like "tail -f".
491 (set (make-local-variable 'window-point-insertion-type) t)
492 ;; Give *Messages* the same default-directory as *scratch*,
493 ;; just to keep things predictable.
494 (setq default-directory dir)))
495 ;; `user-full-name' is now known; reset its standard-value here.
496 (put 'user-full-name 'standard-value
497 (list (default-value 'user-full-name)))
498 ;; Look in each dir in load-path for a subdirs.el file.
499 ;; If we find one, load it, which will add the appropriate subdirs
500 ;; of that dir into load-path,
501 ;; Look for a leim-list.el file too. Loading it will register
502 ;; available input methods.
503 (let ((tail load-path)
504 (lispdir (expand-file-name "../lisp" data-directory))
505 ;; For out-of-tree builds, leim-list is generated in the build dir.
506 ;;; (leimdir (expand-file-name "../leim" doc-directory))
507 dir)
508 (while tail
509 (setq dir (car tail))
510 (let ((default-directory dir))
511 (load (expand-file-name "subdirs.el") t t t))
512 ;; Do not scan standard directories that won't contain a leim-list.el.
513 ;; http://lists.gnu.org/archive/html/emacs-devel/2009-10/msg00502.html
514 (or (string-match (concat "\\`" lispdir) dir)
515 (let ((default-directory dir))
516 (load (expand-file-name "leim-list.el") t t t)))
517 ;; We don't use a dolist loop and we put this "setq-cdr" command at
518 ;; the end, because the subdirs.el files may add elements to the end
519 ;; of load-path and we want to take it into account.
520 (setq tail (cdr tail))))
521 ;; If the PWD environment variable isn't accurate, delete it.
522 (let ((pwd (getenv "PWD")))
523 (and (stringp pwd)
524 ;; Use FOO/., so that if FOO is a symlink, file-attributes
525 ;; describes the directory linked to, not FOO itself.
526 (or (equal (file-attributes
527 (concat (file-name-as-directory pwd) "."))
528 (file-attributes
529 (concat (file-name-as-directory default-directory)
530 ".")))
531 (setq process-environment
532 (delete (concat "PWD=" pwd)
533 process-environment)))))
534 (setq default-directory (abbreviate-file-name default-directory))
535 (let ((old-face-font-rescale-alist face-font-rescale-alist))
536 (unwind-protect
537 (command-line)
538 ;; Do this again, in case .emacs defined more abbreviations.
539 (setq default-directory (abbreviate-file-name default-directory))
540 ;; Specify the file for recording all the auto save files of this session.
541 ;; This is used by recover-session.
542 (or auto-save-list-file-name
543 (and auto-save-list-file-prefix
544 (setq auto-save-list-file-name
545 ;; Under MS-DOS our PID is almost always reused between
546 ;; Emacs invocations. We need something more unique.
547 (cond ((eq system-type 'ms-dos)
548 ;; We are going to access the auto-save
549 ;; directory, so make sure it exists.
550 (make-directory
551 (file-name-directory auto-save-list-file-prefix)
553 (concat
554 (make-temp-name
555 (expand-file-name
556 auto-save-list-file-prefix))
557 "~"))
559 (expand-file-name
560 (format "%s%d-%s~"
561 auto-save-list-file-prefix
562 (emacs-pid)
563 (system-name))))))))
564 (unless inhibit-startup-hooks
565 (run-hooks 'emacs-startup-hook)
566 (and term-setup-hook
567 (run-hooks 'term-setup-hook)))
569 ;; Don't do this if we failed to create the initial frame,
570 ;; for instance due to a dense colormap.
571 (when (or frame-initial-frame
572 ;; If frame-initial-frame has no meaning, do this anyway.
573 (not (and initial-window-system
574 (not noninteractive)
575 (not (eq initial-window-system 'pc)))))
577 ;; FIXME: The user's init file may change
578 ;; face-font-rescale-alist. However, the default face
579 ;; already has an assigned font object, which does not take
580 ;; face-font-rescale-alist into account. For such
581 ;; situations, we ought to have a way to find all font
582 ;; objects and regenerate them; currently we do not. As a
583 ;; workaround, we specifically reset te default face's :font
584 ;; attribute here. See bug#1785.
585 (unless (eq face-font-rescale-alist
586 old-face-font-rescale-alist)
587 (set-face-attribute 'default nil :font (font-spec)))
589 ;; Modify the initial frame based on what .emacs puts into
590 ;; ...-frame-alist.
591 (if (fboundp 'frame-notice-user-settings)
592 (frame-notice-user-settings))
593 ;; Set the faces for the initial background mode even if
594 ;; frame-notice-user-settings didn't (such as on a tty).
595 ;; frame-set-background-mode is idempotent, so it won't
596 ;; cause any harm if it's already been done.
597 (if (fboundp 'frame-set-background-mode)
598 (frame-set-background-mode (selected-frame))))
600 ;; Now we know the user's default font, so add it to the menu.
601 (if (fboundp 'font-menu-add-default)
602 (font-menu-add-default))
603 (and window-setup-hook
604 (run-hooks 'window-setup-hook))))
605 ;; Subprocesses of Emacs do not have direct access to the terminal, so
606 ;; unless told otherwise they should only assume a dumb terminal.
607 ;; We are careful to do it late (after term-setup-hook), although the
608 ;; new multi-tty code does not use $TERM any more there anyway.
609 (setenv "TERM" "dumb")
610 ;; Remove DISPLAY from the process-environment as well. This allows
611 ;; `callproc.c' to give it a useful adaptive default which is either
612 ;; the value of the `display' frame-parameter or the DISPLAY value
613 ;; from initial-environment.
614 (let ((display (frame-parameter nil 'display)))
615 ;; Be careful which DISPLAY to remove from process-environment: follow
616 ;; the logic of `callproc.c'.
617 (if (stringp display) (setq display (concat "DISPLAY=" display))
618 (dolist (varval initial-environment)
619 (if (string-match "\\`DISPLAY=" varval)
620 (setq display varval))))
621 (when display
622 (delete display process-environment)))))
624 ;; Precompute the keyboard equivalents in the menu bar items.
625 ;; Command-line options supported by tty's:
626 (defconst tty-long-option-alist
627 '(("--name" . "-name")
628 ("--title" . "-T")
629 ("--reverse-video" . "-reverse")
630 ("--foreground-color" . "-fg")
631 ("--background-color" . "-bg")
632 ("--color" . "-color")))
634 (defconst tool-bar-images-pixel-height 24
635 "Height in pixels of images in the tool-bar.")
637 (defvar tool-bar-originally-present nil
638 "Non-nil if tool-bars are present before user and site init files are read.")
640 (defvar handle-args-function-alist '((nil . tty-handle-args))
641 "Functions for processing window-system dependent command-line arguments.
642 Window system startup files should add their own function to this
643 alist, which should parse the command line arguments. Those
644 pertaining to the window system should be processed and removed
645 from the returned command line.")
647 (defvar window-system-initialization-alist '((nil . ignore))
648 "Alist of window-system initialization functions.
649 Window-system startup files should add their own initialization
650 function to this list. The function should take no arguments,
651 and initialize the window system environment to prepare for
652 opening the first frame (e.g. open a connection to an X server).")
654 (defun tty-handle-args (args)
655 "Handle the X-like command-line arguments \"-fg\", \"-bg\", \"-name\", etc."
656 (let (rest)
657 (message "%S" args)
658 (while (and args
659 (not (equal (car args) "--")))
660 (let* ((argi (pop args))
661 (orig-argi argi)
662 argval completion)
663 ;; Check for long options with attached arguments
664 ;; and separate out the attached option argument into argval.
665 (when (string-match "^\\(--[^=]*\\)=" argi)
666 (setq argval (substring argi (match-end 0))
667 argi (match-string 1 argi)))
668 (when (string-match "^--" argi)
669 (setq completion (try-completion argi tty-long-option-alist))
670 (if (eq completion t)
671 ;; Exact match for long option.
672 (setq argi (cdr (assoc argi tty-long-option-alist)))
673 (if (stringp completion)
674 (let ((elt (assoc completion tty-long-option-alist)))
675 ;; Check for abbreviated long option.
676 (or elt
677 (error "Option `%s' is ambiguous" argi))
678 (setq argi (cdr elt)))
679 ;; Check for a short option.
680 (setq argval nil
681 argi orig-argi))))
682 (cond ((member argi '("-fg" "-foreground"))
683 (push (cons 'foreground-color (or argval (pop args)))
684 default-frame-alist))
685 ((member argi '("-bg" "-background"))
686 (push (cons 'background-color (or argval (pop args)))
687 default-frame-alist))
688 ((member argi '("-T" "-name"))
689 (unless argval (setq argval (pop args)))
690 (push (cons 'title
691 (if (stringp argval)
692 argval
693 (let ((case-fold-search t)
695 (setq argval (invocation-name))
697 ;; Change any . or * characters in name to
698 ;; hyphens, so as to emulate behavior on X.
699 (while
700 (setq i (string-match "[.*]" argval))
701 (aset argval i ?-))
702 argval)))
703 default-frame-alist))
704 ((member argi '("-r" "-rv" "-reverse"))
705 (push '(reverse . t)
706 default-frame-alist))
707 ((equal argi "-color")
708 (unless argval (setq argval 8)) ; default --color means 8 ANSI colors
709 (push (cons 'tty-color-mode
710 (cond
711 ((numberp argval) argval)
712 ((string-match "-?[0-9]+" argval)
713 (string-to-number argval))
714 (t (intern argval))))
715 default-frame-alist))
717 (push argi rest)))))
718 (nreverse rest)))
720 (declare-function x-get-resource "frame.c"
721 (attribute class &optional component subclass))
722 (declare-function tool-bar-mode "tool-bar" (&optional arg))
723 (declare-function tool-bar-setup "tool-bar")
725 (defvar server-name)
726 (defvar server-process)
728 (defun command-line ()
729 "A subroutine of `normal-top-level'.
730 Amongst another things, it parses the command-line arguments."
731 (setq before-init-time (current-time)
732 after-init-time nil
733 command-line-default-directory default-directory)
735 ;; Force recomputation, in case it was computed during the dump.
736 (setq abbreviated-home-dir nil)
738 ;; See if we should import version-control from the environment variable.
739 (let ((vc (getenv "VERSION_CONTROL")))
740 (cond ((eq vc nil)) ;don't do anything if not set
741 ((member vc '("t" "numbered"))
742 (setq version-control t))
743 ((member vc '("nil" "existing"))
744 (setq version-control nil))
745 ((member vc '("never" "simple"))
746 (setq version-control 'never))))
748 ;;! This has been commented out; I currently find the behavior when
749 ;;! split-window-keep-point is nil disturbing, but if I can get used
750 ;;! to it, then it would be better to eliminate the option.
751 ;;! ;; Choose a good default value for split-window-keep-point.
752 ;;! (setq split-window-keep-point (> baud-rate 2400))
754 ;; Set the default strings to display in mode line for
755 ;; end-of-line formats that aren't native to this platform.
756 (cond
757 ((memq system-type '(ms-dos windows-nt))
758 (setq eol-mnemonic-unix "(Unix)"
759 eol-mnemonic-mac "(Mac)"))
760 (t ; this is for Unix/GNU/Linux systems
761 (setq eol-mnemonic-dos "(DOS)"
762 eol-mnemonic-mac "(Mac)")))
764 (set-locale-environment nil)
766 ;; Convert preloaded file names in load-history to absolute.
767 (let ((simple-file-name
768 ;; Look for simple.el or simple.elc and use their directory
769 ;; as the place where all Lisp files live.
770 (locate-file "simple" load-path (get-load-suffixes)))
771 lisp-dir)
772 ;; Don't abort if simple.el cannot be found, but print a warning.
773 ;; Although in most usage we are going to cryptically abort a moment
774 ;; later anyway, due to missing required bidi data files (eg bug#13430).
775 (if (null simple-file-name)
776 (let ((standard-output 'external-debugging-output)
777 (lispdir (expand-file-name "../lisp" data-directory)))
778 (princ "Warning: Could not find simple.el or simple.elc")
779 (terpri)
780 (when (getenv "EMACSLOADPATH")
781 (princ "The EMACSLOADPATH environment variable is set, \
782 please check its value")
783 (terpri))
784 (unless (file-readable-p lispdir)
785 (princ (format "Lisp directory %s not readable?" lispdir))
786 (terpri)))
787 (setq lisp-dir (file-truename (file-name-directory simple-file-name)))
788 (setq load-history
789 (mapcar (lambda (elt)
790 (if (and (stringp (car elt))
791 (not (file-name-absolute-p (car elt))))
792 (cons (concat lisp-dir
793 (car elt))
794 (cdr elt))
795 elt))
796 load-history))))
798 ;; Convert the arguments to Emacs internal representation.
799 (let ((args (cdr command-line-args)))
800 (while args
801 (setcar args
802 (decode-coding-string (car args) locale-coding-system t))
803 (pop args)))
805 (let ((done nil)
806 (args (cdr command-line-args))
807 display-arg)
809 ;; Figure out which user's init file to load,
810 ;; either from the environment or from the options.
811 (setq init-file-user (if noninteractive nil (user-login-name)))
812 ;; If user has not done su, use current $HOME to find .emacs.
813 (and init-file-user
814 (equal init-file-user (user-real-login-name))
815 (setq init-file-user ""))
817 ;; Process the command-line args, and delete the arguments
818 ;; processed. This is consistent with the way main in emacs.c
819 ;; does things.
820 (while (and (not done) args)
821 (let* ((longopts '(("--no-init-file") ("--no-site-file") ("--debug-init")
822 ("--user") ("--iconic") ("--icon-type") ("--quick")
823 ("--no-blinking-cursor") ("--basic-display")))
824 (argi (pop args))
825 (orig-argi argi)
826 argval)
827 ;; Handle --OPTION=VALUE format.
828 (when (string-match "\\`\\(--[^=]*\\)=" argi)
829 (setq argval (substring argi (match-end 0))
830 argi (match-string 1 argi)))
831 (when (string-match "\\`--." orig-argi)
832 (let ((completion (try-completion argi longopts)))
833 (cond ((eq completion t)
834 (setq argi (substring argi 1)))
835 ((stringp completion)
836 (let ((elt (assoc completion longopts)))
837 (unless elt
838 (error "Option `%s' is ambiguous" argi))
839 (setq argi (substring (car elt) 1))))
841 (setq argval nil
842 argi orig-argi)))))
843 (cond
844 ;; The --display arg is handled partly in C, partly in Lisp.
845 ;; When it shows up here, we just put it back to be handled
846 ;; by `command-line-1'.
847 ((member argi '("-d" "-display"))
848 (setq display-arg (list argi (pop args))))
849 ((member argi '("-Q" "-quick"))
850 (setq init-file-user nil
851 site-run-file nil
852 inhibit-x-resources t))
853 ((member argi '("-D" "-basic-display"))
854 (setq no-blinking-cursor t
855 emacs-basic-display t)
856 (push '(vertical-scroll-bars . nil) initial-frame-alist))
857 ((member argi '("-q" "-no-init-file"))
858 (setq init-file-user nil))
859 ((member argi '("-u" "-user"))
860 (setq init-file-user (or argval (pop args))
861 argval nil))
862 ((equal argi "-no-site-file")
863 (setq site-run-file nil))
864 ((equal argi "-debug-init")
865 (setq init-file-debug t))
866 ((equal argi "-iconic")
867 (push '(visibility . icon) initial-frame-alist))
868 ((member argi '("-nbc" "-no-blinking-cursor"))
869 (setq no-blinking-cursor t))
870 ;; Push the popped arg back on the list of arguments.
872 (push argi args)
873 (setq done t)))
874 ;; Was argval set but not used?
875 (and argval
876 (error "Option `%s' doesn't allow an argument" argi))))
878 ;; Re-attach the --display arg.
879 (and display-arg (setq args (append display-arg args)))
881 ;; Re-attach the program name to the front of the arg list.
882 (and command-line-args
883 (setcdr command-line-args args)))
885 ;; Make sure window system's init file was loaded in loadup.el if
886 ;; using a window system.
887 ;; Initialize the window-system only after processing the command-line
888 ;; args so that -Q can influence this initialization.
889 (condition-case error
890 (unless noninteractive
891 (if (and initial-window-system
892 (not (featurep
893 (intern
894 (concat (symbol-name initial-window-system) "-win")))))
895 (error "Unsupported window system `%s'" initial-window-system))
896 ;; Process window-system specific command line parameters.
897 (setq command-line-args
898 (funcall
899 (or (cdr (assq initial-window-system handle-args-function-alist))
900 (error "Unsupported window system `%s'" initial-window-system))
901 command-line-args))
902 ;; Initialize the window system. (Open connection, etc.)
903 (funcall
904 (or (cdr (assq initial-window-system window-system-initialization-alist))
905 (error "Unsupported window system `%s'" initial-window-system)))
906 (put initial-window-system 'window-system-initialized t))
907 ;; If there was an error, print the error message and exit.
908 (error
909 (princ
910 (if (eq (car error) 'error)
911 (apply 'concat (cdr error))
912 (if (memq 'file-error (get (car error) 'error-conditions))
913 (format "%s: %s"
914 (nth 1 error)
915 (mapconcat (lambda (obj) (prin1-to-string obj t))
916 (cdr (cdr error)) ", "))
917 (format "%s: %s"
918 (get (car error) 'error-message)
919 (mapconcat (lambda (obj) (prin1-to-string obj t))
920 (cdr error) ", "))))
921 'external-debugging-output)
922 (terpri 'external-debugging-output)
923 (setq initial-window-system nil)
924 (kill-emacs)))
926 (run-hooks 'before-init-hook)
928 ;; Under X, create the X frame and delete the terminal frame.
929 (unless (daemonp)
930 (if (or noninteractive emacs-basic-display)
931 (setq menu-bar-mode nil
932 tool-bar-mode nil
933 no-blinking-cursor t))
934 (frame-initialize))
936 (when (fboundp 'x-create-frame)
937 ;; Set up the tool-bar (even in tty frames, since Emacs might open a
938 ;; graphical frame later).
939 (unless noninteractive
940 (tool-bar-setup)))
942 ;; Turn off blinking cursor if so specified in X resources. This is here
943 ;; only because all other settings of no-blinking-cursor are here.
944 (unless (or noninteractive
945 emacs-basic-display
946 (and (memq window-system '(x w32 ns))
947 (not (member (x-get-resource "cursorBlink" "CursorBlink")
948 '("no" "off" "false" "0")))))
949 (setq no-blinking-cursor t))
951 ;; Re-evaluate predefined variables whose initial value depends on
952 ;; the runtime context.
953 (mapc 'custom-reevaluate-setting
954 ;; Initialize them in the same order they were loaded, in case there
955 ;; are dependencies between them.
956 (prog1 (nreverse custom-delayed-init-variables)
957 (setq custom-delayed-init-variables nil)))
959 (normal-erase-is-backspace-setup-frame)
961 ;; Register default TTY colors for the case the terminal hasn't a
962 ;; terminal init file. We do this regardless of whether the terminal
963 ;; supports colors or not and regardless the current display type,
964 ;; since users can connect to color-capable terminals and also
965 ;; switch color support on or off in mid-session by setting the
966 ;; tty-color-mode frame parameter.
967 ;; Exception: the `pc' ``window system'' has only 16 fixed colors,
968 ;; and they are already set at this point by a suitable function in
969 ;; window-system-initialization-alist.
970 (or (eq initial-window-system 'pc)
971 (tty-register-default-colors))
973 ;; Record whether the tool-bar is present before the user and site
974 ;; init files are processed. frame-notice-user-settings uses this
975 ;; to determine if the tool-bar has been disabled by the init files,
976 ;; and the frame needs to be resized.
977 (when (fboundp 'frame-notice-user-settings)
978 (let ((tool-bar-lines (or (assq 'tool-bar-lines initial-frame-alist)
979 (assq 'tool-bar-lines default-frame-alist))))
980 (setq tool-bar-originally-present
981 (and tool-bar-lines
982 (cdr tool-bar-lines)
983 (not (eq 0 (cdr tool-bar-lines)))))))
985 (let ((old-scalable-fonts-allowed scalable-fonts-allowed)
986 (old-face-ignored-fonts face-ignored-fonts))
988 ;; Run the site-start library if it exists. The point of this file is
989 ;; that it is run before .emacs. There is no point in doing this after
990 ;; .emacs; that is useless.
991 ;; Note that user-init-file is nil at this point. Code that might
992 ;; be loaded from site-run-file and wants to test if -q was given
993 ;; should check init-file-user instead, since that is already set.
994 ;; See cus-edit.el for an example.
995 (if site-run-file
996 (load site-run-file t t))
998 ;; Sites should not disable this. Only individuals should disable
999 ;; the startup screen.
1000 (setq inhibit-startup-screen nil)
1002 ;; Warn for invalid user name.
1003 (when init-file-user
1004 (if (string-match "[~/:\n]" init-file-user)
1005 (display-warning 'initialization
1006 (format "Invalid user name %s"
1007 init-file-user)
1008 :error)
1009 (if (file-directory-p (expand-file-name
1010 ;; We don't support ~USER on MS-Windows
1011 ;; and MS-DOS except for the current
1012 ;; user, and always load .emacs from
1013 ;; the current user's home directory
1014 ;; (see below). So always check "~",
1015 ;; even if invoked with "-u USER", or
1016 ;; if $USER or $LOGNAME are set to
1017 ;; something different.
1018 (if (memq system-type '(windows-nt ms-dos))
1020 (concat "~" init-file-user))))
1022 (display-warning 'initialization
1023 (format "User %s has no home directory"
1024 (if (equal init-file-user "")
1025 (user-real-login-name)
1026 init-file-user))
1027 :error))))
1029 ;; Load that user's init file, or the default one, or none.
1030 (let (debug-on-error-from-init-file
1031 debug-on-error-should-be-set
1032 (debug-on-error-initial
1033 (if (eq init-file-debug t) 'startup init-file-debug))
1034 (orig-enable-multibyte (default-value 'enable-multibyte-characters)))
1035 (let ((debug-on-error debug-on-error-initial)
1036 ;; This function actually reads the init files.
1037 (inner
1038 (function
1039 (lambda ()
1040 (if init-file-user
1041 (let ((user-init-file-1
1042 (cond
1043 ((eq system-type 'ms-dos)
1044 (concat "~" init-file-user "/_emacs"))
1045 ((not (eq system-type 'windows-nt))
1046 (concat "~" init-file-user "/.emacs"))
1047 ;; Else deal with the Windows situation
1048 ((directory-files "~" nil "^\\.emacs\\(\\.elc?\\)?$")
1049 ;; Prefer .emacs on Windows.
1050 "~/.emacs")
1051 ((directory-files "~" nil "^_emacs\\(\\.elc?\\)?$")
1052 ;; Also support _emacs for compatibility, but warn about it.
1053 (push '(initialization
1054 "`_emacs' init file is deprecated, please use `.emacs'")
1055 delayed-warnings-list)
1056 "~/_emacs")
1057 (t ;; But default to .emacs if _emacs does not exist.
1058 "~/.emacs"))))
1059 ;; This tells `load' to store the file name found
1060 ;; into user-init-file.
1061 (setq user-init-file t)
1062 (load user-init-file-1 t t)
1064 (when (eq user-init-file t)
1065 ;; If we did not find ~/.emacs, try
1066 ;; ~/.emacs.d/init.el.
1067 (let ((otherfile
1068 (expand-file-name
1069 "init"
1070 (file-name-as-directory
1071 (concat "~" init-file-user "/.emacs.d")))))
1072 (load otherfile t t)
1074 ;; If we did not find the user's init file,
1075 ;; set user-init-file conclusively.
1076 ;; Don't let it be set from default.el.
1077 (when (eq user-init-file t)
1078 (setq user-init-file user-init-file-1))))
1080 ;; If we loaded a compiled file, set
1081 ;; `user-init-file' to the source version if that
1082 ;; exists.
1083 (when (and user-init-file
1084 (equal (file-name-extension user-init-file)
1085 "elc"))
1086 (let* ((source (file-name-sans-extension user-init-file))
1087 (alt (concat source ".el")))
1088 (setq source (cond ((file-exists-p alt) alt)
1089 ((file-exists-p source) source)
1090 (t nil)))
1091 (when source
1092 (when (file-newer-than-file-p source user-init-file)
1093 (message "Warning: %s is newer than %s"
1094 source user-init-file)
1095 (sit-for 1))
1096 (setq user-init-file source))))
1098 (unless inhibit-default-init
1099 (let ((inhibit-startup-screen nil))
1100 ;; Users are supposed to be told their rights.
1101 ;; (Plus how to get help and how to undo.)
1102 ;; Don't you dare turn this off for anyone
1103 ;; except yourself.
1104 (load "default" t t)))))))))
1105 (if init-file-debug
1106 ;; Do this without a condition-case if the user wants to debug.
1107 (funcall inner)
1108 (condition-case error
1109 (progn
1110 (funcall inner)
1111 (setq init-file-had-error nil))
1112 (error
1113 (display-warning
1114 'initialization
1115 (format "An error occurred while loading `%s':\n\n%s%s%s\n\n\
1116 To ensure normal operation, you should investigate and remove the
1117 cause of the error in your initialization file. Start Emacs with
1118 the `--debug-init' option to view a complete error backtrace."
1119 user-init-file
1120 (get (car error) 'error-message)
1121 (if (cdr error) ": " "")
1122 (mapconcat (lambda (s) (prin1-to-string s t))
1123 (cdr error) ", "))
1124 :warning)
1125 (setq init-file-had-error t))))
1127 (if (and deactivate-mark transient-mark-mode)
1128 (with-current-buffer (window-buffer)
1129 (deactivate-mark)))
1131 ;; If the user has a file of abbrevs, read it (unless -batch).
1132 (when (and (not noninteractive)
1133 (file-exists-p abbrev-file-name)
1134 (file-readable-p abbrev-file-name))
1135 (quietly-read-abbrev-file abbrev-file-name))
1137 ;; If the abbrevs came entirely from the init file or the
1138 ;; abbrevs file, they do not need saving.
1139 (setq abbrevs-changed nil)
1141 ;; If we can tell that the init file altered debug-on-error,
1142 ;; arrange to preserve the value that it set up.
1143 (or (eq debug-on-error debug-on-error-initial)
1144 (setq debug-on-error-should-be-set t
1145 debug-on-error-from-init-file debug-on-error)))
1146 (if debug-on-error-should-be-set
1147 (setq debug-on-error debug-on-error-from-init-file))
1148 (unless (or (default-value 'enable-multibyte-characters)
1149 (eq orig-enable-multibyte (default-value
1150 'enable-multibyte-characters)))
1151 ;; Init file changed to unibyte. Reset existing multibyte
1152 ;; buffers (probably *scratch*, *Messages*, *Minibuf-0*).
1153 ;; Arguably this should only be done if they're free of
1154 ;; multibyte characters.
1155 (mapc (lambda (buffer)
1156 (with-current-buffer buffer
1157 (if enable-multibyte-characters
1158 (set-buffer-multibyte nil))))
1159 (buffer-list))
1160 ;; Also re-set the language environment in case it was
1161 ;; originally done before unibyte was set and is sensitive to
1162 ;; unibyte (display table, terminal coding system &c).
1163 (set-language-environment current-language-environment)))
1165 ;; Do this here in case the init file sets mail-host-address.
1166 (if (equal user-mail-address "")
1167 (setq user-mail-address (or (getenv "EMAIL")
1168 (concat (user-login-name) "@"
1169 (or mail-host-address
1170 (system-name))))))
1172 ;; If parameter have been changed in the init file which influence
1173 ;; face realization, clear the face cache so that new faces will
1174 ;; be realized.
1175 (unless (and (eq scalable-fonts-allowed old-scalable-fonts-allowed)
1176 (eq face-ignored-fonts old-face-ignored-fonts))
1177 (clear-face-cache)))
1179 ;; If any package directory exists, initialize the package system.
1180 (and user-init-file
1181 package-enable-at-startup
1182 (catch 'package-dir-found
1183 (let (dirs)
1184 (if (boundp 'package-directory-list)
1185 (setq dirs package-directory-list)
1186 (dolist (f load-path)
1187 (and (stringp f)
1188 (equal (file-name-nondirectory f) "site-lisp")
1189 (push (expand-file-name "elpa" f) dirs))))
1190 (push (if (boundp 'package-user-dir)
1191 package-user-dir
1192 (locate-user-emacs-file "elpa"))
1193 dirs)
1194 (dolist (dir dirs)
1195 (when (file-directory-p dir)
1196 (dolist (subdir (directory-files dir))
1197 (when (and (file-directory-p (expand-file-name subdir dir))
1198 (string-match
1199 (concat "\\`" package-subdirectory-regexp "\\'")
1200 subdir))
1201 (throw 'package-dir-found t)))))))
1202 (package-initialize))
1204 (setq after-init-time (current-time))
1205 (run-hooks 'after-init-hook)
1207 ;; Decode all default-directory.
1208 (if (and (default-value 'enable-multibyte-characters) locale-coding-system)
1209 (save-excursion
1210 (dolist (elt (buffer-list))
1211 (set-buffer elt)
1212 (if default-directory
1213 (setq default-directory
1214 (decode-coding-string default-directory
1215 locale-coding-system t))))
1216 (setq command-line-default-directory
1217 (decode-coding-string command-line-default-directory
1218 locale-coding-system t))))
1220 ;; If *scratch* exists and init file didn't change its mode, initialize it.
1221 (if (get-buffer "*scratch*")
1222 (with-current-buffer "*scratch*"
1223 (if (eq major-mode 'fundamental-mode)
1224 (funcall initial-major-mode))))
1226 ;; Load library for our terminal type.
1227 ;; User init file can set term-file-prefix to nil to prevent this.
1228 (unless (or noninteractive
1229 initial-window-system)
1230 (tty-run-terminal-initialization (selected-frame)))
1232 ;; Update the out-of-memory error message based on user's key bindings
1233 ;; for save-some-buffers.
1234 (setq memory-signal-data
1235 (list 'error
1236 (substitute-command-keys "Memory exhausted--use \\[save-some-buffers] then exit and restart Emacs")))
1238 ;; Process the remaining args.
1239 (command-line-1 (cdr command-line-args))
1241 ;; If -batch, terminate after processing the command options.
1242 (if noninteractive (kill-emacs t))
1244 ;; In daemon mode, start the server to allow clients to connect.
1245 ;; This is done after loading the user's init file and after
1246 ;; processing all command line arguments to allow e.g. `server-name'
1247 ;; to be changed before the server starts.
1248 (let ((dn (daemonp)))
1249 (when dn
1250 (when (stringp dn) (setq server-name dn))
1251 (server-start)
1252 (if server-process
1253 (daemon-initialized)
1254 (if (stringp dn)
1255 (message
1256 "Unable to start daemon: Emacs server named %S already running"
1257 server-name)
1258 (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."))
1259 (kill-emacs 1))))
1261 ;; Run emacs-session-restore (session management) if started by
1262 ;; the session manager and we have a session manager connection.
1263 (if (and (boundp 'x-session-previous-id)
1264 (stringp x-session-previous-id))
1265 (with-no-warnings
1266 (emacs-session-restore x-session-previous-id))))
1268 (defun x-apply-session-resources ()
1269 "Apply X resources which specify initial values for Emacs variables.
1270 This is called from a window-system initialization function, such
1271 as `x-initialize-window-system' for X, either at startup (prior
1272 to reading the init file), or afterwards when the user first
1273 opens a graphical frame.
1275 This can set the values of `menu-bar-mode', `tool-bar-mode', and
1276 `no-blinking-cursor', as well as the `cursor' face. Changed
1277 settings will be marked as \"CHANGED outside of Customize\"."
1278 (let ((no-vals '("no" "off" "false" "0"))
1279 (settings '(("menuBar" "MenuBar" menu-bar-mode nil)
1280 ("toolBar" "ToolBar" tool-bar-mode nil)
1281 ("cursorBlink" "CursorBlink" no-blinking-cursor t))))
1282 (dolist (x settings)
1283 (if (member (x-get-resource (nth 0 x) (nth 1 x)) no-vals)
1284 (set (nth 2 x) (nth 3 x)))))
1285 (let ((color (x-get-resource "cursorColor" "Foreground")))
1286 (when color
1287 (put 'cursor 'theme-face
1288 `((changed ((t :background ,color)))))
1289 (put 'cursor 'face-modified t))))
1291 (defcustom initial-scratch-message (purecopy "\
1292 ;; This buffer is for notes you don't want to save, and for Lisp evaluation.
1293 ;; If you want to create a file, visit that file with C-x C-f,
1294 ;; then enter the text in that file's own buffer.
1297 "Initial message displayed in *scratch* buffer at startup.
1298 If this is nil, no message will be displayed."
1299 :type '(choice (text :tag "Message")
1300 (const :tag "none" nil))
1301 :group 'initialization)
1304 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1305 ;;; Fancy splash screen
1306 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1308 (defconst fancy-startup-text
1309 `((:face (variable-pitch font-lock-comment-face)
1310 "Welcome to "
1311 :link ("GNU Emacs"
1312 ,(lambda (_button) (browse-url "http://www.gnu.org/software/emacs/"))
1313 "Browse http://www.gnu.org/software/emacs/")
1314 ", one component of the "
1315 :link
1316 ,(lambda ()
1317 (if (eq system-type 'gnu/linux)
1318 `("GNU/Linux"
1319 ,(lambda (_button) (browse-url "http://www.gnu.org/gnu/linux-and-gnu.html"))
1320 "Browse http://www.gnu.org/gnu/linux-and-gnu.html")
1321 `("GNU" ,(lambda (_button) (describe-gnu-project))
1322 "Display info on the GNU project")))
1323 " operating system.\n\n"
1324 :face variable-pitch
1325 :link ("Emacs Tutorial" ,(lambda (_button) (help-with-tutorial)))
1326 "\tLearn basic keystroke commands"
1327 ,(lambda ()
1328 (let* ((en "TUTORIAL")
1329 (tut (or (get-language-info current-language-environment
1330 'tutorial)
1331 en))
1332 (title (with-temp-buffer
1333 (insert-file-contents
1334 (expand-file-name tut tutorial-directory)
1335 ;; We used to read only the first 256 bytes of
1336 ;; the tutorial, but that prevents the coding:
1337 ;; setting, if any, in file-local variables
1338 ;; section to be seen by insert-file-contents,
1339 ;; and results in gibberish when the language
1340 ;; environment's preferred encoding is
1341 ;; different from what the file-local variable
1342 ;; says. One case in point is Hebrew.
1343 nil)
1344 (search-forward ".")
1345 (buffer-substring (point-min) (1- (point))))))
1346 ;; If there is a specific tutorial for the current language
1347 ;; environment and it is not English, append its title.
1348 (if (string= en tut)
1350 (concat " (" title ")"))))
1351 "\n"
1352 :link ("Emacs Guided Tour"
1353 ,(lambda (_button)
1354 (browse-url "http://www.gnu.org/software/emacs/tour/"))
1355 "Browse http://www.gnu.org/software/emacs/tour/")
1356 "\tOverview of Emacs features at gnu.org\n"
1357 :link ("View Emacs Manual" ,(lambda (_button) (info-emacs-manual)))
1358 "\tView the Emacs manual using Info\n"
1359 :link ("Absence of Warranty" ,(lambda (_button) (describe-no-warranty)))
1360 "\tGNU Emacs comes with "
1361 :face (variable-pitch (:slant oblique))
1362 "ABSOLUTELY NO WARRANTY\n"
1363 :face variable-pitch
1364 :link ("Copying Conditions" ,(lambda (_button) (describe-copying)))
1365 "\tConditions for redistributing and changing Emacs\n"
1366 :link ("Ordering Manuals" ,(lambda (_button) (view-order-manuals)))
1367 "\tPurchasing printed copies of manuals\n"
1368 "\n"))
1369 "A list of texts to show in the middle part of splash screens.
1370 Each element in the list should be a list of strings or pairs
1371 `:face FACE', like `fancy-splash-insert' accepts them.")
1373 (defconst fancy-about-text
1374 `((:face (variable-pitch font-lock-comment-face)
1375 "This is "
1376 :link ("GNU Emacs"
1377 ,(lambda (_button) (browse-url "http://www.gnu.org/software/emacs/"))
1378 "Browse http://www.gnu.org/software/emacs/")
1379 ", one component of the "
1380 :link
1381 ,(lambda ()
1382 (if (eq system-type 'gnu/linux)
1383 `("GNU/Linux"
1384 ,(lambda (_button)
1385 (browse-url "http://www.gnu.org/gnu/linux-and-gnu.html"))
1386 "Browse http://www.gnu.org/gnu/linux-and-gnu.html")
1387 `("GNU" ,(lambda (_button) (describe-gnu-project))
1388 "Display info on the GNU project.")))
1389 " operating system.\n"
1390 :face (variable-pitch font-lock-builtin-face)
1391 "\n"
1392 ,(lambda () (emacs-version))
1393 "\n"
1394 :face (variable-pitch (:height 0.8))
1395 ,(lambda () emacs-copyright)
1396 "\n\n"
1397 :face variable-pitch
1398 :link ("Authors"
1399 ,(lambda (_button)
1400 (view-file (expand-file-name "AUTHORS" data-directory))
1401 (goto-char (point-min))))
1402 "\tMany people have contributed code included in GNU Emacs\n"
1403 :link ("Contributing"
1404 ,(lambda (_button)
1405 (view-file (expand-file-name "CONTRIBUTE" data-directory))
1406 (goto-char (point-min))))
1407 "\tHow to contribute improvements to Emacs\n"
1408 "\n"
1409 :link ("GNU and Freedom" ,(lambda (_button) (describe-gnu-project)))
1410 "\tWhy we developed GNU Emacs, and the GNU operating system\n"
1411 :link ("Absence of Warranty" ,(lambda (_button) (describe-no-warranty)))
1412 "\tGNU Emacs comes with "
1413 :face (variable-pitch (:slant oblique))
1414 "ABSOLUTELY NO WARRANTY\n"
1415 :face variable-pitch
1416 :link ("Copying Conditions" ,(lambda (_button) (describe-copying)))
1417 "\tConditions for redistributing and changing Emacs\n"
1418 :link ("Getting New Versions" ,(lambda (_button) (describe-distribution)))
1419 "\tHow to obtain the latest version of Emacs\n"
1420 :link ("Ordering Manuals" ,(lambda (_button) (view-order-manuals)))
1421 "\tBuying printed manuals from the FSF\n"
1422 "\n"
1423 :link ("Emacs Tutorial" ,(lambda (_button) (help-with-tutorial)))
1424 "\tLearn basic Emacs keystroke commands"
1425 ,(lambda ()
1426 (let* ((en "TUTORIAL")
1427 (tut (or (get-language-info current-language-environment
1428 'tutorial)
1429 en))
1430 (title (with-temp-buffer
1431 (insert-file-contents
1432 (expand-file-name tut tutorial-directory)
1433 nil 0 256)
1434 (search-forward ".")
1435 (buffer-substring (point-min) (1- (point))))))
1436 ;; If there is a specific tutorial for the current language
1437 ;; environment and it is not English, append its title.
1438 (if (string= en tut)
1440 (concat " (" title ")"))))
1441 "\n"
1442 :link ("Emacs Guided Tour"
1443 ,(lambda (_button)
1444 (browse-url "http://www.gnu.org/software/emacs/tour/"))
1445 "Browse http://www.gnu.org/software/emacs/tour/")
1446 "\tSee an overview of Emacs features at gnu.org"))
1447 "A list of texts to show in the middle part of the About screen.
1448 Each element in the list should be a list of strings or pairs
1449 `:face FACE', like `fancy-splash-insert' accepts them.")
1452 (defgroup fancy-splash-screen ()
1453 "Fancy splash screen when Emacs starts."
1454 :version "21.1"
1455 :group 'initialization)
1457 (defcustom fancy-splash-image nil
1458 "The image to show in the splash screens, or nil for defaults."
1459 :group 'fancy-splash-screen
1460 :type '(choice (const :tag "Default" nil)
1461 (file :tag "File")))
1464 (defvar splash-screen-keymap
1465 (let ((map (make-sparse-keymap)))
1466 (suppress-keymap map)
1467 (set-keymap-parent map button-buffer-map)
1468 (define-key map "\C-?" 'scroll-down-command)
1469 (define-key map [?\S-\ ] 'scroll-down-command)
1470 (define-key map " " 'scroll-up-command)
1471 (define-key map "q" 'exit-splash-screen)
1472 map)
1473 "Keymap for splash screen buffer.")
1475 ;; These are temporary storage areas for the splash screen display.
1477 (defun fancy-splash-insert (&rest args)
1478 "Insert text into the current buffer, with faces.
1479 Arguments from ARGS should be either strings; functions called
1480 with no args that return a string; pairs `:face FACE', where FACE
1481 is a face specification usable with `put-text-property'; or pairs
1482 `:link LINK' where LINK is a list of arguments to pass to
1483 `insert-button', of the form (LABEL ACTION [HELP-ECHO]), which
1484 specifies the button's label, `action' property and help-echo string.
1485 FACE and LINK can also be functions, which are evaluated to obtain
1486 a face or button specification."
1487 (let ((current-face nil))
1488 (while args
1489 (cond ((eq (car args) :face)
1490 (setq args (cdr args) current-face (car args))
1491 (if (functionp current-face)
1492 (setq current-face (funcall current-face))))
1493 ((eq (car args) :link)
1494 (setq args (cdr args))
1495 (let ((spec (car args)))
1496 (if (functionp spec)
1497 (setq spec (funcall spec)))
1498 (insert-button (car spec)
1499 'face (list 'link current-face)
1500 'action (cadr spec)
1501 'help-echo (concat "mouse-2, RET: "
1502 (or (nth 2 spec)
1503 "Follow this link"))
1504 'follow-link t)))
1505 (t (insert (propertize (let ((it (car args)))
1506 (if (functionp it)
1507 (funcall it)
1508 it))
1509 'face current-face
1510 'help-echo (startup-echo-area-message)))))
1511 (setq args (cdr args)))))
1513 (declare-function image-size "image.c" (spec &optional pixels frame))
1515 (defun fancy-splash-head ()
1516 "Insert the head part of the splash screen into the current buffer."
1517 (let* ((image-file (cond ((stringp fancy-splash-image)
1518 fancy-splash-image)
1519 ((display-color-p)
1520 (cond ((<= (display-planes) 8)
1521 (if (image-type-available-p 'xpm)
1522 "splash.xpm"
1523 "splash.pbm"))
1524 ((or (image-type-available-p 'svg)
1525 (image-type-available-p 'imagemagick))
1526 "splash.svg")
1527 ((image-type-available-p 'png)
1528 "splash.png")
1529 ((image-type-available-p 'xpm)
1530 "splash.xpm")
1531 (t "splash.pbm")))
1532 (t "splash.pbm")))
1533 (img (create-image image-file))
1534 (image-width (and img (car (image-size img))))
1535 (window-width (window-width (selected-window))))
1536 (when img
1537 (when (> window-width image-width)
1538 ;; Center the image in the window.
1539 (insert (propertize " " 'display
1540 `(space :align-to (+ center (-0.5 . ,img)))))
1542 ;; Change the color of the XPM version of the splash image
1543 ;; so that it is visible with a dark frame background.
1544 (when (and (memq 'xpm img)
1545 (eq (frame-parameter nil 'background-mode) 'dark))
1546 (setq img (append img '(:color-symbols (("#000000" . "gray30"))))))
1548 ;; Insert the image with a help-echo and a link.
1549 (make-button (prog1 (point) (insert-image img)) (point)
1550 'face 'default
1551 'help-echo "mouse-2, RET: Browse http://www.gnu.org/"
1552 'action (lambda (_button) (browse-url "http://www.gnu.org/"))
1553 'follow-link t)
1554 (insert "\n\n")))))
1556 (defun fancy-startup-tail (&optional concise)
1557 "Insert the tail part of the splash screen into the current buffer."
1558 (unless concise
1559 (fancy-splash-insert
1560 :face 'variable-pitch
1561 "\nTo start... "
1562 :link `("Open a File"
1563 ,(lambda (_button) (call-interactively 'find-file))
1564 "Specify a new file's name, to edit the file")
1566 :link `("Open Home Directory"
1567 ,(lambda (_button) (dired "~"))
1568 "Open your home directory, to operate on its files")
1570 :link `("Customize Startup"
1571 ,(lambda (_button) (customize-group 'initialization))
1572 "Change initialization settings including this screen")
1573 "\n"))
1574 (fancy-splash-insert
1575 :face 'variable-pitch "To quit a partially entered command, type "
1576 :face 'default "Control-g"
1577 :face 'variable-pitch ".\n")
1578 (fancy-splash-insert :face `(variable-pitch font-lock-builtin-face)
1579 "\nThis is "
1580 (emacs-version)
1581 "\n"
1582 :face '(variable-pitch (:height 0.8))
1583 emacs-copyright
1584 "\n")
1585 (when auto-save-list-file-prefix
1586 (let ((dir (file-name-directory auto-save-list-file-prefix))
1587 (name (file-name-nondirectory auto-save-list-file-prefix))
1588 files)
1589 ;; Don't warn if the directory for auto-save-list files does not
1590 ;; yet exist.
1591 (and (file-directory-p dir)
1592 (setq files (directory-files dir nil (concat "\\`" name) t))
1593 (fancy-splash-insert :face '(variable-pitch font-lock-comment-face)
1594 (if (= (length files) 1)
1595 "\nAn auto-save file list was found. "
1596 "\nAuto-save file lists were found. ")
1597 "If an Emacs session crashed recently,\ntype "
1598 :link `("M-x recover-session RET"
1599 ,(lambda (_button)
1600 (call-interactively
1601 'recover-session)))
1602 " to recover the files you were editing."))))
1604 (when concise
1605 (fancy-splash-insert
1606 :face 'variable-pitch "\n"
1607 :link `("Dismiss this startup screen"
1608 ,(lambda (_button)
1609 (when startup-screen-inhibit-startup-screen
1610 (customize-set-variable 'inhibit-startup-screen t)
1611 (customize-mark-to-save 'inhibit-startup-screen)
1612 (custom-save-all))
1613 (let ((w (get-buffer-window "*GNU Emacs*")))
1614 (and w (not (one-window-p)) (delete-window w)))
1615 (kill-buffer "*GNU Emacs*")))
1616 " ")
1617 (when (or user-init-file custom-file)
1618 (let ((checked (create-image "checked.xpm"
1619 nil nil :ascent 'center))
1620 (unchecked (create-image "unchecked.xpm"
1621 nil nil :ascent 'center)))
1622 (insert-button
1624 :on-glyph checked
1625 :off-glyph unchecked
1626 'checked nil 'display unchecked 'follow-link t
1627 'action (lambda (button)
1628 (if (overlay-get button 'checked)
1629 (progn (overlay-put button 'checked nil)
1630 (overlay-put button 'display
1631 (overlay-get button :off-glyph))
1632 (setq startup-screen-inhibit-startup-screen
1633 nil))
1634 (overlay-put button 'checked t)
1635 (overlay-put button 'display
1636 (overlay-get button :on-glyph))
1637 (setq startup-screen-inhibit-startup-screen t)))))
1638 (fancy-splash-insert :face '(variable-pitch (:height 0.9))
1639 " Never show it again."))))
1641 (defun exit-splash-screen ()
1642 "Stop displaying the splash screen buffer."
1643 (interactive)
1644 (quit-window t))
1646 (defun fancy-startup-screen (&optional concise)
1647 "Display fancy startup screen.
1648 If CONCISE is non-nil, display a concise version of the
1649 splash screen in another window."
1650 (let ((splash-buffer (get-buffer-create "*GNU Emacs*")))
1651 (with-current-buffer splash-buffer
1652 (let ((inhibit-read-only t))
1653 (erase-buffer)
1654 (setq default-directory command-line-default-directory)
1655 (make-local-variable 'startup-screen-inhibit-startup-screen)
1656 (if pure-space-overflow
1657 (insert pure-space-overflow-message))
1658 (unless concise
1659 (fancy-splash-head))
1660 (dolist (text fancy-startup-text)
1661 (apply #'fancy-splash-insert text)
1662 (insert "\n"))
1663 (skip-chars-backward "\n")
1664 (delete-region (point) (point-max))
1665 (insert "\n")
1666 (fancy-startup-tail concise))
1667 (use-local-map splash-screen-keymap)
1668 (setq tab-width 22
1669 buffer-read-only t)
1670 (set-buffer-modified-p nil)
1671 (if (and view-read-only (not view-mode))
1672 (view-mode-enter nil 'kill-buffer))
1673 (goto-char (point-min))
1674 (forward-line (if concise 2 4)))
1675 (if concise
1676 (progn
1677 (display-buffer splash-buffer)
1678 ;; If the splash screen is in a split window, fit it.
1679 (let ((window (get-buffer-window splash-buffer t)))
1680 (or (null window)
1681 (eq window (selected-window))
1682 (eq window (next-window window))
1683 (fit-window-to-buffer window))))
1684 (switch-to-buffer splash-buffer))))
1686 (defun fancy-about-screen ()
1687 "Display fancy About screen."
1688 (let ((frame (fancy-splash-frame)))
1689 (save-selected-window
1690 (select-frame frame)
1691 (switch-to-buffer "*About GNU Emacs*")
1692 (setq buffer-undo-list t)
1693 (let ((inhibit-read-only t))
1694 (erase-buffer)
1695 (if pure-space-overflow
1696 (insert pure-space-overflow-message))
1697 (fancy-splash-head)
1698 (dolist (text fancy-about-text)
1699 (apply #'fancy-splash-insert text)
1700 (insert "\n"))
1701 (set-buffer-modified-p nil)
1702 (goto-char (point-min))
1703 (force-mode-line-update))
1704 (use-local-map splash-screen-keymap)
1705 (setq tab-width 22)
1706 (setq buffer-read-only t)
1707 (goto-char (point-min))
1708 (forward-line 3))))
1710 (defun fancy-splash-frame ()
1711 "Return the frame to use for the fancy splash screen.
1712 Returning non-nil does not mean we should necessarily
1713 use the fancy splash screen, but if we do use it,
1714 we put it on this frame."
1715 (let (chosen-frame)
1716 (dolist (frame (append (frame-list) (list (selected-frame))))
1717 (if (and (frame-visible-p frame)
1718 (not (window-minibuffer-p (frame-selected-window frame))))
1719 (setq chosen-frame frame)))
1720 chosen-frame))
1722 (defun use-fancy-splash-screens-p ()
1723 "Return t if fancy splash screens should be used."
1724 (when (and (display-graphic-p)
1725 (or (and (display-color-p)
1726 (image-type-available-p 'xpm))
1727 (image-type-available-p 'pbm)))
1728 (let ((frame (fancy-splash-frame)))
1729 (when frame
1730 (let* ((img (create-image (or fancy-splash-image
1731 (if (and (display-color-p)
1732 (image-type-available-p 'xpm))
1733 "splash.xpm" "splash.pbm"))))
1734 (image-height (and img (cdr (image-size img nil frame))))
1735 ;; We test frame-height so that, if the frame is split
1736 ;; by displaying a warning, that doesn't cause the normal
1737 ;; splash screen to be used.
1738 (frame-height (1- (frame-height frame))))
1739 (> frame-height (+ image-height 19)))))))
1742 (defun normal-splash-screen (&optional startup concise)
1743 "Display non-graphic splash screen.
1744 If optional argument STARTUP is non-nil, display the startup screen
1745 after Emacs starts. If STARTUP is nil, display the About screen.
1746 If CONCISE is non-nil, display a concise version of the
1747 splash screen in another window."
1748 (let ((splash-buffer (get-buffer-create "*About GNU Emacs*")))
1749 (with-current-buffer splash-buffer
1750 (setq buffer-read-only nil)
1751 (erase-buffer)
1752 (setq default-directory command-line-default-directory)
1753 (set (make-local-variable 'tab-width) 8)
1755 (if pure-space-overflow
1756 (insert pure-space-overflow-message))
1758 ;; The convention for this piece of code is that
1759 ;; each piece of output starts with one or two newlines
1760 ;; and does not end with any newlines.
1761 (insert (if startup "Welcome to GNU Emacs" "This is GNU Emacs"))
1762 (insert
1763 (if (eq system-type 'gnu/linux)
1764 ", one component of the GNU/Linux operating system.\n"
1765 ", a part of the GNU operating system.\n"))
1767 (if startup
1768 (if (display-mouse-p)
1769 ;; The user can use the mouse to activate menus
1770 ;; so give help in terms of menu items.
1771 (normal-mouse-startup-screen)
1773 ;; No mouse menus, so give help using kbd commands.
1774 (normal-no-mouse-startup-screen))
1776 (normal-about-screen))
1778 ;; The rest of the startup screen is the same on all
1779 ;; kinds of terminals.
1781 ;; Give information on recovering, if there was a crash.
1782 (and startup
1783 auto-save-list-file-prefix
1784 ;; Don't signal an error if the
1785 ;; directory for auto-save-list files
1786 ;; does not yet exist.
1787 (file-directory-p (file-name-directory
1788 auto-save-list-file-prefix))
1789 (directory-files
1790 (file-name-directory auto-save-list-file-prefix)
1792 (concat "\\`"
1793 (regexp-quote (file-name-nondirectory
1794 auto-save-list-file-prefix)))
1796 (insert "\n\nIf an Emacs session crashed recently, "
1797 "type Meta-x recover-session RET\nto recover"
1798 " the files you were editing.\n"))
1800 (use-local-map splash-screen-keymap)
1802 ;; Display the input that we set up in the buffer.
1803 (set-buffer-modified-p nil)
1804 (setq buffer-read-only t)
1805 (if (and view-read-only (not view-mode))
1806 (view-mode-enter nil 'kill-buffer))
1807 (if startup (rename-buffer "*GNU Emacs*" t))
1808 (goto-char (point-min)))
1809 (if concise
1810 (display-buffer splash-buffer)
1811 (switch-to-buffer splash-buffer))))
1813 (defun normal-mouse-startup-screen ()
1814 ;; The user can use the mouse to activate menus
1815 ;; so give help in terms of menu items.
1816 (insert "\
1817 To follow a link, click Mouse-1 on it, or move to it and type RET.
1818 To quit a partially entered command, type Control-g.\n")
1820 (insert "\nImportant Help menu items:\n")
1821 (insert-button "Emacs Tutorial"
1822 'action (lambda (_button) (help-with-tutorial))
1823 'follow-link t)
1824 (insert "\t\tLearn basic Emacs keystroke commands\n")
1825 (insert-button "Read the Emacs Manual"
1826 'action (lambda (_button) (info-emacs-manual))
1827 'follow-link t)
1828 (insert "\tView the Emacs manual using Info\n")
1829 (insert-button "\(Non)Warranty"
1830 'action (lambda (_button) (describe-no-warranty))
1831 'follow-link t)
1832 (insert "\t\tGNU Emacs comes with ABSOLUTELY NO WARRANTY\n")
1833 (insert-button "Copying Conditions"
1834 'action (lambda (_button) (describe-copying))
1835 'follow-link t)
1836 (insert "\tConditions for redistributing and changing Emacs\n")
1837 (insert-button "More Manuals / Ordering Manuals"
1838 'action (lambda (_button) (view-order-manuals))
1839 'follow-link t)
1840 (insert " How to order printed manuals from the FSF\n")
1842 (insert "\nUseful tasks:\n")
1843 (insert-button "Visit New File"
1844 'action (lambda (_button) (call-interactively 'find-file))
1845 'follow-link t)
1846 (insert "\t\tSpecify a new file's name, to edit the file\n")
1847 (insert-button "Open Home Directory"
1848 'action (lambda (_button) (dired "~"))
1849 'follow-link t)
1850 (insert "\tOpen your home directory, to operate on its files\n")
1851 (insert-button "Customize Startup"
1852 'action (lambda (_button) (customize-group 'initialization))
1853 'follow-link t)
1854 (insert "\tChange initialization settings including this screen\n")
1856 (insert "\n" (emacs-version)
1857 "\n" emacs-copyright))
1859 ;; No mouse menus, so give help using kbd commands.
1860 (defun normal-no-mouse-startup-screen ()
1862 ;; If keys have their default meanings,
1863 ;; use precomputed string to save lots of time.
1864 (let* ((c-h-accessible
1865 ;; If normal-erase-is-backspace is used on a tty, there's
1866 ;; no way to invoke C-h and you have to use F1 instead.
1867 (or (not (char-table-p keyboard-translate-table))
1868 (eq (aref keyboard-translate-table ?\C-h) ?\C-h)))
1869 (minor-mode-overriding-map-alist
1870 (cons (cons (not c-h-accessible)
1871 ;; If C-h can't be invoked, temporarily disable its
1872 ;; binding, so where-is uses alternative bindings.
1873 (let ((map (make-sparse-keymap)))
1874 (define-key map [?\C-h] 'undefined)
1875 map))
1876 minor-mode-overriding-map-alist)))
1878 (insert (format "\nGet help\t %s\n"
1879 (let ((where (where-is-internal 'help-command nil t)))
1880 (cond
1881 ((equal where [?\C-h])
1882 "C-h (Hold down CTRL and press h)")
1883 (where (key-description where))
1884 (t "M-x help")))))
1885 (insert-button "Emacs manual"
1886 'action (lambda (_button) (info-emacs-manual))
1887 'follow-link t)
1888 (insert (substitute-command-keys"\t \\[info-emacs-manual]\t"))
1889 (insert-button "Browse manuals"
1890 'action (lambda (_button) (Info-directory))
1891 'follow-link t)
1892 (insert (substitute-command-keys "\t \\[info]\n"))
1893 (insert-button "Emacs tutorial"
1894 'action (lambda (_button) (help-with-tutorial))
1895 'follow-link t)
1896 (insert (substitute-command-keys
1897 "\t \\[help-with-tutorial]\tUndo changes\t \\[undo]\n"))
1898 (insert-button "Buy manuals"
1899 'action (lambda (_button) (view-order-manuals))
1900 'follow-link t)
1901 (insert (substitute-command-keys
1902 "\t \\[view-order-manuals]\tExit Emacs\t \\[save-buffers-kill-terminal]")))
1904 ;; Say how to use the menu bar with the keyboard.
1905 (insert "\n")
1906 (insert-button "Activate menubar"
1907 'action (lambda (_button) (tmm-menubar))
1908 'follow-link t)
1909 (if (and (eq (key-binding "\M-`") 'tmm-menubar)
1910 (eq (key-binding [f10]) 'tmm-menubar))
1911 (insert " F10 or ESC ` or M-`")
1912 (insert (substitute-command-keys " \\[tmm-menubar]")))
1914 ;; Many users seem to have problems with these.
1915 (insert "
1916 \(`C-' means use the CTRL key. `M-' means use the Meta (or Alt) key.
1917 If you have no Meta key, you may instead type ESC followed by the character.)")
1919 ;; Insert links to useful tasks
1920 (insert "\nUseful tasks:\n")
1922 (insert-button "Visit New File"
1923 'action (lambda (_button) (call-interactively 'find-file))
1924 'follow-link t)
1925 (insert "\t\t\t")
1926 (insert-button "Open Home Directory"
1927 'action (lambda (_button) (dired "~"))
1928 'follow-link t)
1929 (insert "\n")
1931 (insert-button "Customize Startup"
1932 'action (lambda (_button) (customize-group 'initialization))
1933 'follow-link t)
1934 (insert "\t\t")
1935 (insert-button "Open *scratch* buffer"
1936 'action (lambda (_button) (switch-to-buffer
1937 (get-buffer-create "*scratch*")))
1938 'follow-link t)
1939 (insert "\n")
1940 (insert "\n" (emacs-version) "\n" emacs-copyright "\n")
1942 (if (and (eq (key-binding "\C-h\C-c") 'describe-copying)
1943 (eq (key-binding "\C-h\C-d") 'describe-distribution)
1944 (eq (key-binding "\C-h\C-w") 'describe-no-warranty))
1945 (progn
1946 (insert
1948 GNU Emacs comes with ABSOLUTELY NO WARRANTY; type C-h C-w for ")
1949 (insert-button "full details"
1950 'action (lambda (_button) (describe-no-warranty))
1951 'follow-link t)
1952 (insert ".
1953 Emacs is Free Software--Free as in Freedom--so you can redistribute copies
1954 of Emacs and modify it; type C-h C-c to see ")
1955 (insert-button "the conditions"
1956 'action (lambda (_button) (describe-copying))
1957 'follow-link t)
1958 (insert ".
1959 Type C-h C-d for information on ")
1960 (insert-button "getting the latest version"
1961 'action (lambda (_button) (describe-distribution))
1962 'follow-link t)
1963 (insert "."))
1964 (insert (substitute-command-keys
1966 GNU Emacs comes with ABSOLUTELY NO WARRANTY; type \\[describe-no-warranty] for "))
1967 (insert-button "full details"
1968 'action (lambda (_button) (describe-no-warranty))
1969 'follow-link t)
1970 (insert (substitute-command-keys ".
1971 Emacs is Free Software--Free as in Freedom--so you can redistribute copies
1972 of Emacs and modify it; type \\[describe-copying] to see "))
1973 (insert-button "the conditions"
1974 'action (lambda (_button) (describe-copying))
1975 'follow-link t)
1976 (insert (substitute-command-keys".
1977 Type \\[describe-distribution] for information on "))
1978 (insert-button "getting the latest version"
1979 'action (lambda (_button) (describe-distribution))
1980 'follow-link t)
1981 (insert ".")))
1983 (defun normal-about-screen ()
1984 (insert "\n" (emacs-version) "\n" emacs-copyright "\n\n")
1986 (insert "To follow a link, click Mouse-1 on it, or move to it and type RET.\n\n")
1988 (insert-button "Authors"
1989 'action
1990 (lambda (_button)
1991 (view-file (expand-file-name "AUTHORS" data-directory))
1992 (goto-char (point-min)))
1993 'follow-link t)
1994 (insert "\t\tMany people have contributed code included in GNU Emacs\n")
1996 (insert-button "Contributing"
1997 'action
1998 (lambda (_button)
1999 (view-file (expand-file-name "CONTRIBUTE" data-directory))
2000 (goto-char (point-min)))
2001 'follow-link t)
2002 (insert "\tHow to contribute improvements to Emacs\n\n")
2004 (insert-button "GNU and Freedom"
2005 'action (lambda (_button) (describe-gnu-project))
2006 'follow-link t)
2007 (insert "\t\tWhy we developed GNU Emacs and the GNU system\n")
2009 (insert-button "Absence of Warranty"
2010 'action (lambda (_button) (describe-no-warranty))
2011 'follow-link t)
2012 (insert "\tGNU Emacs comes with ABSOLUTELY NO WARRANTY\n")
2014 (insert-button "Copying Conditions"
2015 'action (lambda (_button) (describe-copying))
2016 'follow-link t)
2017 (insert "\tConditions for redistributing and changing Emacs\n")
2019 (insert-button "Getting New Versions"
2020 'action (lambda (_button) (describe-distribution))
2021 'follow-link t)
2022 (insert "\tHow to get the latest version of GNU Emacs\n")
2024 (insert-button "More Manuals / Ordering Manuals"
2025 'action (lambda (_button) (view-order-manuals))
2026 'follow-link t)
2027 (insert "\tBuying printed manuals from the FSF\n"))
2029 (defun startup-echo-area-message ()
2030 (cond ((daemonp)
2031 "Starting Emacs daemon.")
2032 ((eq (key-binding "\C-h\C-a") 'about-emacs)
2033 "For information about GNU Emacs and the GNU system, type C-h C-a.")
2035 (substitute-command-keys
2036 "For information about GNU Emacs and the GNU system, type \
2037 \\[about-emacs]."))))
2039 (defun display-startup-echo-area-message ()
2040 (let ((resize-mini-windows t))
2041 (or noninteractive ;(input-pending-p) init-file-had-error
2042 ;; t if the init file says to inhibit the echo area startup message.
2043 (and inhibit-startup-echo-area-message
2044 user-init-file
2045 (or (and (get 'inhibit-startup-echo-area-message 'saved-value)
2046 (equal inhibit-startup-echo-area-message
2047 (if (equal init-file-user "")
2048 (user-login-name)
2049 init-file-user)))
2050 ;; Wasn't set with custom; see if .emacs has a setq.
2051 (condition-case nil
2052 (with-temp-buffer
2053 (insert-file-contents user-init-file)
2054 (re-search-forward
2055 (concat
2056 "([ \t\n]*setq[ \t\n]+"
2057 "inhibit-startup-echo-area-message[ \t\n]+"
2058 (regexp-quote
2059 (prin1-to-string
2060 (if (equal init-file-user "")
2061 (user-login-name)
2062 init-file-user)))
2063 "[ \t\n]*)")
2064 nil t))
2065 (error nil))))
2066 (message "%s" (startup-echo-area-message)))))
2068 (defun display-startup-screen (&optional concise)
2069 "Display startup screen according to display.
2070 A fancy display is used on graphic displays, normal otherwise.
2072 If CONCISE is non-nil, display a concise version of the startup
2073 screen."
2074 ;; Prevent recursive calls from server-process-filter.
2075 (if (not (get-buffer "*GNU Emacs*"))
2076 (if (use-fancy-splash-screens-p)
2077 (fancy-startup-screen concise)
2078 (normal-splash-screen t concise))))
2080 (defun display-about-screen ()
2081 "Display the *About GNU Emacs* buffer.
2082 A fancy display is used on graphic displays, normal otherwise."
2083 (interactive)
2084 (if (use-fancy-splash-screens-p)
2085 (fancy-about-screen)
2086 (normal-splash-screen nil)))
2088 (defalias 'about-emacs 'display-about-screen)
2089 (defalias 'display-splash-screen 'display-startup-screen)
2091 (defun command-line-1 (args-left)
2092 "A subroutine of `command-line'."
2093 (display-startup-echo-area-message)
2094 (when (and pure-space-overflow
2095 (not noninteractive))
2096 (display-warning
2097 'initialization
2098 "Building Emacs overflowed pure space.\
2099 (See the node Pure Storage in the Lisp manual for details.)"
2100 :warning))
2102 (let ((file-count 0)
2103 (command-line-args-left args-left)
2104 first-file-buffer)
2105 (when command-line-args-left
2106 ;; We have command args; process them.
2107 (let ((dir command-line-default-directory)
2109 ;; This approach loses for "-batch -L DIR --eval "(require foo)",
2110 ;; if foo is intended to be found in DIR.
2112 ;; ;; The directories listed in --directory/-L options will *appear*
2113 ;; ;; at the front of `load-path' in the order they appear on the
2114 ;; ;; command-line. We cannot do this by *placing* them at the front
2115 ;; ;; in the order they appear, so we need this variable to hold them,
2116 ;; ;; temporarily.
2117 ;; extra-load-path
2119 ;; To DTRT we keep track of the splice point and modify `load-path'
2120 ;; straight away upon any --directory/-L option.
2121 splice
2122 just-files ;; t if this follows the magic -- option.
2123 ;; This includes our standard options' long versions
2124 ;; and long versions of what's on command-switch-alist.
2125 (longopts
2126 (append '("--funcall" "--load" "--insert" "--kill"
2127 "--directory" "--eval" "--execute" "--no-splash"
2128 "--find-file" "--visit" "--file" "--no-desktop")
2129 (mapcar (lambda (elt) (concat "-" (car elt)))
2130 command-switch-alist)))
2131 (line 0)
2132 (column 0))
2134 ;; Add the long X options to longopts.
2135 (dolist (tem command-line-x-option-alist)
2136 (if (string-match "^--" (car tem))
2137 (push (car tem) longopts)))
2139 ;; Add the long NS options to longopts.
2140 (dolist (tem command-line-ns-option-alist)
2141 (if (string-match "^--" (car tem))
2142 (push (list (car tem)) longopts)))
2144 ;; Loop, processing options.
2145 (while command-line-args-left
2146 (let* ((argi (car command-line-args-left))
2147 (orig-argi argi)
2148 argval completion)
2149 (setq command-line-args-left (cdr command-line-args-left))
2151 ;; Do preliminary decoding of the option.
2152 (if just-files
2153 ;; After --, don't look for options; treat all args as files.
2154 (setq argi "")
2155 ;; Convert long options to ordinary options
2156 ;; and separate out an attached option argument into argval.
2157 (when (string-match "\\`\\(--[^=]*\\)=" argi)
2158 (setq argval (substring argi (match-end 0))
2159 argi (match-string 1 argi)))
2160 (when (string-match "\\`--?[^-]" orig-argi)
2161 (setq completion (try-completion argi longopts))
2162 (if (eq completion t)
2163 (setq argi (substring argi 1))
2164 (if (stringp completion)
2165 (let ((elt (member completion longopts)))
2166 (or elt
2167 (error "Option `%s' is ambiguous" argi))
2168 (setq argi (substring (car elt) 1)))
2169 (setq argval nil
2170 argi orig-argi)))))
2172 ;; Execute the option.
2173 (cond ((setq tem (assoc argi command-switch-alist))
2174 (if argval
2175 (let ((command-line-args-left
2176 (cons argval command-line-args-left)))
2177 (funcall (cdr tem) argi))
2178 (funcall (cdr tem) argi)))
2180 ((equal argi "-no-splash")
2181 (setq inhibit-startup-screen t))
2183 ((member argi '("-f" ; what the manual claims
2184 "-funcall"
2185 "-e")) ; what the source used to say
2186 (setq inhibit-startup-screen t)
2187 (setq tem (intern (or argval (pop command-line-args-left))))
2188 (if (commandp tem)
2189 (command-execute tem)
2190 (funcall tem)))
2192 ((member argi '("-eval" "-execute"))
2193 (setq inhibit-startup-screen t)
2194 (eval (read (or argval (pop command-line-args-left)))))
2196 ((member argi '("-L" "-directory"))
2197 (setq tem (expand-file-name
2198 (command-line-normalize-file-name
2199 (or argval (pop command-line-args-left)))))
2200 (cond (splice (setcdr splice (cons tem (cdr splice)))
2201 (setq splice (cdr splice)))
2202 (t (setq load-path (cons tem load-path)
2203 splice load-path))))
2205 ((member argi '("-l" "-load"))
2206 (let* ((file (command-line-normalize-file-name
2207 (or argval (pop command-line-args-left))))
2208 ;; Take file from default dir if it exists there;
2209 ;; otherwise let `load' search for it.
2210 (file-ex (expand-file-name file)))
2211 (when (file-exists-p file-ex)
2212 (setq file file-ex))
2213 (load file nil t)))
2215 ;; This is used to handle -script. It's not clear
2216 ;; we need to document it (it is totally internal).
2217 ((member argi '("-scriptload"))
2218 (let* ((file (command-line-normalize-file-name
2219 (or argval (pop command-line-args-left))))
2220 ;; Take file from default dir.
2221 (file-ex (expand-file-name file)))
2222 (load file-ex nil t t)))
2224 ((equal argi "-insert")
2225 (setq inhibit-startup-screen t)
2226 (setq tem (or argval (pop command-line-args-left)))
2227 (or (stringp tem)
2228 (error "File name omitted from `-insert' option"))
2229 (insert-file-contents (command-line-normalize-file-name tem)))
2231 ((equal argi "-kill")
2232 (kill-emacs t))
2234 ;; This is for when they use --no-desktop with -q, or
2235 ;; don't load Desktop in their .emacs. If desktop.el
2236 ;; _is_ loaded, it will handle this switch, and we
2237 ;; won't see it by the time we get here.
2238 ((equal argi "-no-desktop")
2239 (message "\"--no-desktop\" ignored because the Desktop package is not loaded"))
2241 ((string-match "^\\+[0-9]+\\'" argi)
2242 (setq line (string-to-number argi)))
2244 ((string-match "^\\+\\([0-9]+\\):\\([0-9]+\\)\\'" argi)
2245 (setq line (string-to-number (match-string 1 argi))
2246 column (string-to-number (match-string 2 argi))))
2248 ((setq tem (assoc orig-argi command-line-x-option-alist))
2249 ;; Ignore X-windows options and their args if not using X.
2250 (setq command-line-args-left
2251 (nthcdr (nth 1 tem) command-line-args-left)))
2253 ((setq tem (assoc orig-argi command-line-ns-option-alist))
2254 ;; Ignore NS-windows options and their args if not using NS.
2255 (setq command-line-args-left
2256 (nthcdr (nth 1 tem) command-line-args-left)))
2258 ((member argi '("-find-file" "-file" "-visit"))
2259 (setq inhibit-startup-screen t)
2260 ;; An explicit option to specify visiting a file.
2261 (setq tem (or argval (pop command-line-args-left)))
2262 (unless (stringp tem)
2263 (error "File name omitted from `%s' option" argi))
2264 (setq file-count (1+ file-count))
2265 (let ((file (expand-file-name
2266 (command-line-normalize-file-name tem)
2267 dir)))
2268 (if (= file-count 1)
2269 (setq first-file-buffer (find-file file))
2270 (find-file-other-window file)))
2271 (unless (zerop line)
2272 (goto-char (point-min))
2273 (forward-line (1- line)))
2274 (setq line 0)
2275 (unless (< column 1)
2276 (move-to-column (1- column)))
2277 (setq column 0))
2279 ;; These command lines now have no effect.
2280 ((string-match "\\`--?\\(no-\\)?\\(uni\\|multi\\)byte$" argi)
2281 (display-warning 'initialization
2282 (format "Ignoring obsolete arg %s" argi)))
2284 ((equal argi "--")
2285 (setq just-files t))
2287 ;; We have almost exhausted our options. See if the
2288 ;; user has made any other command-line options available
2289 (let ((hooks command-line-functions)
2290 (did-hook nil))
2291 (while (and hooks
2292 (not (setq did-hook (funcall (car hooks)))))
2293 (setq hooks (cdr hooks)))
2294 (if (not did-hook)
2295 ;; Presume that the argument is a file name.
2296 (progn
2297 (if (string-match "\\`-" argi)
2298 (error "Unknown option `%s'" argi))
2299 (unless initial-window-system
2300 (setq inhibit-startup-screen t))
2301 (setq file-count (1+ file-count))
2302 (let ((file
2303 (expand-file-name
2304 (command-line-normalize-file-name orig-argi)
2305 dir)))
2306 (cond ((= file-count 1)
2307 (setq first-file-buffer (find-file file)))
2308 (inhibit-startup-screen
2309 (find-file-other-window file))
2310 (t (find-file file))))
2311 (unless (zerop line)
2312 (goto-char (point-min))
2313 (forward-line (1- line)))
2314 (setq line 0)
2315 (unless (< column 1)
2316 (move-to-column (1- column)))
2317 (setq column 0))))))
2318 ;; In unusual circumstances, the execution of Lisp code due
2319 ;; to command-line options can cause the last visible frame
2320 ;; to be deleted. In this case, kill emacs to avoid an
2321 ;; abort later.
2322 (unless (frame-live-p (selected-frame)) (kill-emacs nil))))))
2324 (when (eq initial-buffer-choice t)
2325 ;; When initial-buffer-choice equals t make sure that *scratch*
2326 ;; exists.
2327 (get-buffer-create "*scratch*"))
2329 ;; If *scratch* exists and is empty, insert initial-scratch-message.
2330 ;; Do this before switching to *scratch* below to handle bug#9605.
2331 (and initial-scratch-message
2332 (get-buffer "*scratch*")
2333 (with-current-buffer "*scratch*"
2334 (when (zerop (buffer-size))
2335 (insert initial-scratch-message)
2336 (set-buffer-modified-p nil))))
2338 (when initial-buffer-choice
2339 (let ((buf
2340 (cond ((stringp initial-buffer-choice)
2341 (find-file-noselect initial-buffer-choice))
2342 ((functionp initial-buffer-choice)
2343 (funcall initial-buffer-choice)))))
2344 (switch-to-buffer
2345 (if (buffer-live-p buf) buf (get-buffer-create "*scratch*"))
2346 'norecord)))
2348 (if (or inhibit-startup-screen
2349 initial-buffer-choice
2350 noninteractive
2351 (daemonp)
2352 inhibit-x-resources)
2354 ;; Not displaying a startup screen. If 3 or more files
2355 ;; visited, and not all visible, show user what they all are.
2356 (and (> file-count 2)
2357 (not noninteractive)
2358 (not inhibit-startup-buffer-menu)
2359 (or (get-buffer-window first-file-buffer)
2360 (list-buffers)))
2362 ;; Display a startup screen, after some preparations.
2364 ;; If there are no switches to process, we might as well
2365 ;; run this hook now, and there may be some need to do it
2366 ;; before doing any output.
2367 (run-hooks 'emacs-startup-hook)
2368 (and term-setup-hook
2369 (run-hooks 'term-setup-hook))
2370 (setq inhibit-startup-hooks t)
2372 ;; It's important to notice the user settings before we
2373 ;; display the startup message; otherwise, the settings
2374 ;; won't take effect until the user gives the first
2375 ;; keystroke, and that's distracting.
2376 (when (fboundp 'frame-notice-user-settings)
2377 (frame-notice-user-settings))
2379 ;; If there are no switches to process, we might as well
2380 ;; run this hook now, and there may be some need to do it
2381 ;; before doing any output.
2382 (when window-setup-hook
2383 (run-hooks 'window-setup-hook)
2384 ;; Don't let the hook be run twice.
2385 (setq window-setup-hook nil))
2387 ;; ;; Do this now to avoid an annoying delay if the user
2388 ;; ;; clicks the menu bar during the sit-for.
2389 ;; (when (display-popup-menus-p)
2390 ;; (precompute-menubar-bindings))
2391 ;; (with-no-warnings
2392 ;; (setq menubar-bindings-done t))
2394 (display-startup-screen (> file-count 0)))))
2396 (defun command-line-normalize-file-name (file)
2397 "Collapse multiple slashes to one, to handle non-Emacs file names."
2398 (save-match-data
2399 ;; Use arg 1 so that we don't collapse // at the start of the file name.
2400 ;; That is significant on some systems.
2401 ;; However, /// at the beginning is supposed to mean just /, not //.
2402 (if (string-match "^///+" file)
2403 (setq file (replace-match "/" t t file)))
2404 (and (memq system-type '(ms-dos windows-nt))
2405 (string-match "^[A-Za-z]:\\(\\\\[\\\\/]\\)" file) ; C:\/ or C:\\
2406 (setq file (replace-match "/" t t file 1)))
2407 (while (string-match "//+" file 1)
2408 (setq file (replace-match "/" t t file)))
2409 file))
2411 ;;; startup.el ends here