Revision: emacs@sv.gnu.org/emacs--unicode--0--patch-58
[bpt/emacs.git] / lisp / startup.el
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1;;; startup.el --- process Emacs shell arguments
2
a3194d03 3;; Copyright (C) 1985, 1986, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
1ca41b97 4;; 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
eea8d4ef 5
630cc463 6;; Maintainer: FSF
d7b4d18f 7;; Keywords: internal
630cc463 8
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9;; This file is part of GNU Emacs.
10
11;; GNU Emacs is free software; you can redistribute it and/or modify
12;; it under the terms of the GNU General Public License as published by
4746118a 13;; the Free Software Foundation; either version 2, or (at your option)
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14;; any later version.
15
16;; GNU Emacs is distributed in the hope that it will be useful,
17;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19;; GNU General Public License for more details.
20
21;; You should have received a copy of the GNU General Public License
b578f267 22;; along with GNU Emacs; see the file COPYING. If not, write to the
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23;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24;; Boston, MA 02110-1301, USA.
a726e0d1 25
630cc463 26;;; Commentary:
a726e0d1 27
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28;; This file parses the command line and gets Emacs running. Options
29;; on the command line are handled in precedence order. For priorities
30;; see the structure standard_args in the emacs.c file.
a726e0d1 31
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32;;; Code:
33
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34(setq top-level '(normal-top-level))
35
42a3e6fa 36(defvar command-line-processed nil
2879a13b 37 "Non-nil once command line has been processed.")
a726e0d1 38
42a3e6fa 39(defgroup initialization nil
ca3685a3 40 "Emacs start-up procedure."
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41 :group 'internal)
42
9c8b2150 43(defcustom inhibit-splash-screen nil
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44 "Non-nil inhibits the startup screen.
45It also inhibits display of the initial message in the *scratch* buffer.
46
a726e0d1 47This is for use in your personal init file, once you are familiar
9c8b2150 48with the contents of the startup screen."
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49 :type 'boolean
50 :group 'initialization)
a726e0d1 51
9c8b2150 52(defvaralias 'inhibit-startup-message 'inhibit-splash-screen)
1b207153 53
42a3e6fa 54(defcustom inhibit-startup-echo-area-message nil
1d7da582 55 "*Non-nil inhibits the initial startup echo area message.
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56Setting this variable takes effect
57only if you do it with the customization buffer
94487c4e 58or if your `.emacs' file contains a line of this form:
54a003f7 59 (setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\")
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60If your `.emacs' file is byte-compiled, use the following form instead:
61 (eval '(setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\"))
1d7da582 62Thus, someone else using a copy of your `.emacs' file will see
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63the startup message unless he personally acts to inhibit it."
64 :type '(choice (const :tag "Don't inhibit")
65 (string :tag "Enter your user name, to inhibit"))
66 :group 'initialization)
1d7da582 67
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68(defcustom inhibit-default-init nil
69 "*Non-nil inhibits loading the `default' library."
70 :type 'boolean
71 :group 'initialization)
a726e0d1 72
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73(defcustom inhibit-startup-buffer-menu nil
74 "*Non-nil inhibits display of buffer list when more than 2 files are loaded."
75 :type 'boolean
76 :group 'initialization)
77
d7fa5aa2 78(defvar command-switch-alist nil
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79 "Alist of command-line switches.
80Elements look like (SWITCH-STRING . HANDLER-FUNCTION).
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81HANDLER-FUNCTION receives the switch string as its sole argument;
82the remaining command-line args are in the variable `command-line-args-left'.")
a726e0d1 83
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84(defvar command-line-args-left nil
85 "List of command-line args not yet processed.")
86
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87(defvar command-line-functions nil ;; lrs 7/31/89
88 "List of functions to process unrecognized command-line arguments.
89Each function should access the dynamically bound variables
b4484ea8 90`argi' (the current argument) and `command-line-args-left' (the remaining
a726e0d1 91arguments). The function should return non-nil only if it recognizes and
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92processes `argi'. If it does so, it may consume successive arguments by
93altering `command-line-args-left' to remove them.")
a726e0d1 94
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95(defvar command-line-default-directory nil
96 "Default directory to use for command line arguments.
97This is normally copied from `default-directory' when Emacs starts.")
98
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99;;; This is here, rather than in x-win.el, so that we can ignore these
100;;; options when we are not using X.
46cfd295 101(defconst command-line-x-option-alist
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102 '(("-bw" 1 x-handle-numeric-switch border-width)
103 ("-d" 1 x-handle-display)
104 ("-display" 1 x-handle-display)
5676ab57 105 ("-name" 1 x-handle-name-switch)
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106 ("-title" 1 x-handle-switch title)
107 ("-T" 1 x-handle-switch title)
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108 ("-r" 0 x-handle-switch reverse t)
109 ("-rv" 0 x-handle-switch reverse t)
110 ("-reverse" 0 x-handle-switch reverse t)
111 ("-reverse-video" 0 x-handle-switch reverse t)
112 ("-fn" 1 x-handle-switch font)
113 ("-font" 1 x-handle-switch font)
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114 ("-fs" 0 x-handle-initial-switch fullscreen fullboth)
115 ("-fw" 0 x-handle-initial-switch fullscreen fullwidth)
116 ("-fh" 0 x-handle-initial-switch fullscreen fullheight)
b3afdeb8 117 ("-ib" 1 x-handle-numeric-switch internal-border-width)
1f7f78f1 118 ("-g" 1 x-handle-geometry)
9ff6bda1 119 ("-lsp" 1 x-handle-numeric-switch line-spacing)
1f7f78f1 120 ("-geometry" 1 x-handle-geometry)
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121 ("-fg" 1 x-handle-switch foreground-color)
122 ("-foreground" 1 x-handle-switch foreground-color)
123 ("-bg" 1 x-handle-switch background-color)
124 ("-background" 1 x-handle-switch background-color)
125 ("-ms" 1 x-handle-switch mouse-color)
c755acf3 126 ("-nbi" 0 x-handle-switch icon-type nil)
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127 ("-iconic" 0 x-handle-iconic)
128 ("-xrm" 1 x-handle-xrm-switch)
129 ("-cr" 1 x-handle-switch cursor-color)
130 ("-vb" 0 x-handle-switch vertical-scroll-bars t)
131 ("-hb" 0 x-handle-switch horizontal-scroll-bars t)
132 ("-bd" 1 x-handle-switch)
133 ("--border-width" 1 x-handle-numeric-switch border-width)
134 ("--display" 1 x-handle-display)
5676ab57 135 ("--name" 1 x-handle-name-switch)
7775acb8 136 ("--title" 1 x-handle-switch title)
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137 ("--reverse-video" 0 x-handle-switch reverse t)
138 ("--font" 1 x-handle-switch font)
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139 ("--fullscreen" 0 x-handle-initial-switch fullscreen fullboth)
140 ("--fullwidth" 0 x-handle-initial-switch fullscreen fullwidth)
141 ("--fullheight" 0 x-handle-initial-switch fullscreen fullheight)
b3afdeb8 142 ("--internal-border" 1 x-handle-numeric-switch internal-border-width)
1f7f78f1 143 ("--geometry" 1 x-handle-geometry)
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144 ("--foreground-color" 1 x-handle-switch foreground-color)
145 ("--background-color" 1 x-handle-switch background-color)
146 ("--mouse-color" 1 x-handle-switch mouse-color)
1c1db08a 147 ("--no-bitmap-icon" 0 x-handle-switch icon-type nil)
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148 ("--iconic" 0 x-handle-iconic)
149 ("--xrm" 1 x-handle-xrm-switch)
150 ("--cursor-color" 1 x-handle-switch cursor-color)
151 ("--vertical-scroll-bars" 0 x-handle-switch vertical-scroll-bars t)
9ff6bda1 152 ("--line-spacing" 1 x-handle-numeric-switch line-spacing)
7f944e8e 153 ("--border-color" 1 x-handle-switch border-color)
ca57f55d 154 ("--smid" 1 x-handle-smid))
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155 "Alist of X Windows options.
156Each element has the form
157 (NAME NUMARGS HANDLER FRAME-PARAM VALUE)
158where NAME is the option name string, NUMARGS is the number of arguments
159that the option accepts, HANDLER is a function to call to handle the option.
160FRAME-PARAM (optional) is the frame parameter this option specifies,
161and VALUE is the value which is given to that frame parameter
162\(most options use the argument for this, so VALUE is not present).")
163
e3bd99f5 164(defvar before-init-hook nil
db3f571a 165 "Normal hook run after handling urgent options but before loading init files.")
3fc958a4 166
e3bd99f5 167(defvar after-init-hook nil
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168 "Normal hook run after loading the init files, `~/.emacs' and `default.el'.
169There is no `condition-case' around the running of these functions;
170therefore, if you set `debug-on-error' non-nil in `.emacs',
171an error in one of these functions will invoke the debugger.")
172
173(defvar emacs-startup-hook nil
174 "Normal hook run after loading init files and handling the command line.")
e3bd99f5 175
a726e0d1 176(defvar term-setup-hook nil
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177 "Normal hook run after loading terminal-specific Lisp code.
178It also follows `emacs-startup-hook'. This hook exists for users to set,
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179so as to override the definitions made by the terminal-specific file.
180Emacs never sets this variable itself.")
181
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182(defvar inhibit-startup-hooks nil
183 "Non-nil means don't run `term-setup-hook' and `emacs-startup-hook'.
184This is because we already did so.")
185
a726e0d1 186(defvar keyboard-type nil
b4484ea8 187 "The brand of keyboard you are using.
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188This variable is used to define the proper function and keypad
189keys for use under X. It is used in a fashion analogous to the
190environment variable TERM.")
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191
192(defvar window-setup-hook nil
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193 "Normal hook run to initialize window system display.
194Emacs runs this hook after processing the command line arguments and loading
195the user's init file.")
a726e0d1 196
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197(defcustom initial-major-mode 'lisp-interaction-mode
198 "Major mode command symbol to use for the initial *scratch* buffer."
ce2f921e 199 :type 'function
42a3e6fa 200 :group 'initialization)
a726e0d1 201
ecbff273 202(defvar init-file-user nil
a726e0d1 203 "Identity of user whose `.emacs' file is or was read.
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204The value is nil if `-q' or `--no-init-file' was specified,
205meaning do not load any init file.
206
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207Otherwise, the value may be an empty string, meaning
208use the init file for the user who originally logged in,
209or it may be a string containing a user's name meaning
210use that person's init file.
a726e0d1 211
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212In either of the latter cases, `(concat \"~\" init-file-user \"/\")'
213evaluates to the name of the directory where the `.emacs' file was
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214looked for.
215
216Setting `init-file-user' does not prevent Emacs from loading
ecbff273 217`site-start.el'. The only way to do that is to use `--no-site-file'.")
a726e0d1 218
42a3e6fa 219(defcustom site-run-file "site-start"
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220 "File containing site-wide run-time initializations.
221This file is loaded at run-time before `~/.emacs'. It contains inits
222that need to be in place for the entire site, but which, due to their
fcaf7de9 223higher incidence of change, don't make sense to load into Emacs's
b7444d31 224dumped image. Thus, the run-time load order is: 1. file described in
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225this variable, if non-nil; 2. `~/.emacs'; 3. `default.el'.
226
227Don't use the `site-start.el' file for things some users may not like.
228Put them in `default.el' instead, so that users can more easily
229override them. Users can prevent loading `default.el' with the `-q'
230option or by setting `inhibit-default-init' in their own init files,
231but inhibiting `site-start.el' requires `--no-site-file', which
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232is less convenient.
233
234This variable is defined for customization so as to make
235it visible in the relevant context. However, actually customizing it
236is not allowed, since it would not work anyway. The only way to set
9ab281f0 237this variable usefully is to set it while building and dumping Emacs."
93812130 238 :type '(choice (const :tag "none" nil) string)
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239 :group 'initialization
240 :initialize 'custom-initialize-default
241 :set '(lambda (variable value)
242 (error "Customizing `site-run-file' does not work")))
b7444d31 243
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244(defcustom mail-host-address nil
245 "*Name of this machine, for purposes of naming users."
246 :type '(choice (const nil) string)
247 :group 'mail)
c13fbb62 248
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249(defcustom user-mail-address (if command-line-processed
250 (concat (user-login-name) "@"
251 (or mail-host-address
252 (system-name)))
253 ;; Empty string means "not set yet".
254 "")
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255 "*Full mailing address of this user.
256This is initialized based on `mail-host-address',
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257after your init file is read, in case it sets `mail-host-address'."
258 :type 'string
259 :group 'mail)
c10d1f06 260
42a3e6fa 261(defcustom auto-save-list-file-prefix
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262 (cond ((eq system-type 'ms-dos)
263 ;; MS-DOS cannot have initial dot, and allows only 8.3 names
4b33deaa 264 "~/_emacs.d/auto-save.list/_s")
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265 (t
266 "~/.emacs.d/auto-save-list/.saves-"))
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267 "Prefix for generating `auto-save-list-file-name'.
268This is used after reading your `.emacs' file to initialize
269`auto-save-list-file-name', by appending Emacs's pid and the system name,
270if you have not already set `auto-save-list-file-name' yourself.
73f13e5a 271Directories in the prefix will be created if necessary.
cdee38c3 272Set this to nil if you want to prevent `auto-save-list-file-name'
42a3e6fa 273from being initialized."
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274 :type '(choice (const :tag "Don't record a session's auto save list" nil)
275 string)
42a3e6fa 276 :group 'auto-save)
2e05d063 277
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278(defvar emacs-quick-startup nil)
279
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280(defvar emacs-basic-display nil)
281
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282(defvar init-file-debug nil)
283
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284(defvar init-file-had-error nil)
285
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286(defvar normal-top-level-add-subdirs-inode-list nil)
287
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288(defvar no-blinking-cursor nil)
289
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290(defvar default-frame-background-mode)
291
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292(defvar pure-space-overflow nil
293 "Non-nil if building Emacs overflowed pure space.")
294
859e15c1 295(defun normal-top-level-add-subdirs-to-load-path ()
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296 "Add all subdirectories of current directory to `load-path'.
297More precisely, this uses only the subdirectories whose names
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298start with letters or digits; it excludes any subdirectory named `RCS'
299or `CVS', and any subdirectory that contains a file named `.nosearch'."
f1180544 300 (let (dirs
95eada65 301 attrs
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302 (pending (list default-directory)))
303 ;; This loop does a breadth-first tree walk on DIR's subtree,
304 ;; putting each subdir into DIRS as its contents are examined.
305 (while pending
4e0a3971 306 (push (pop pending) dirs)
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307 (let* ((this-dir (car dirs))
308 (contents (directory-files this-dir))
309 (default-directory this-dir)
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310 (canonicalized (if (fboundp 'untranslated-canonical-name)
311 (untranslated-canonical-name this-dir))))
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312 ;; The Windows version doesn't report meaningful inode
313 ;; numbers, so use the canonicalized absolute file name of the
314 ;; directory instead.
315 (setq attrs (or canonicalized
316 (nthcdr 10 (file-attributes this-dir))))
95eada65 317 (unless (member attrs normal-top-level-add-subdirs-inode-list)
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318 (push attrs normal-top-level-add-subdirs-inode-list)
319 (dolist (file contents)
c4a40544 320 ;; The lower-case variants of RCS and CVS are for DOS/Windows.
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321 (unless (member file '("." ".." "RCS" "CVS" "rcs" "cvs"))
322 (when (and (string-match "\\`[[:alnum:]]" file)
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323 ;; Avoid doing a `stat' when it isn't necessary
324 ;; because that can cause trouble when an NFS server
325 ;; is down.
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326 (not (string-match "\\.elc?\\'" file))
327 (file-directory-p file))
328 (let ((expanded (expand-file-name file)))
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329 (unless (file-exists-p (expand-file-name ".nosearch"
330 expanded))
4e0a3971 331 (setq pending (nconc pending (list expanded)))))))))))
bb15e81a 332 (normal-top-level-add-to-load-path (cdr (nreverse dirs)))))
859e15c1 333
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334;; This function is called from a subdirs.el file.
335;; It assumes that default-directory is the directory
336;; in which the subdirs.el file exists,
337;; and it adds to load-path the subdirs of that directory
338;; as specified in DIRS. Normally the elements of DIRS are relative.
e87a7309 339(defun normal-top-level-add-to-load-path (dirs)
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340 (let ((tail load-path)
341 (thisdir (directory-file-name default-directory)))
342 (while (and tail
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343 ;;Don't go all the way to the nil terminator.
344 (cdr tail)
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345 (not (equal thisdir (car tail)))
346 (not (and (memq system-type '(ms-dos windows-nt))
347 (equal (downcase thisdir) (downcase (car tail))))))
348 (setq tail (cdr tail)))
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349 ;;Splice the new section in.
350 (when tail
351 (setcdr tail (append (mapcar 'expand-file-name dirs) (cdr tail))))))
e87a7309 352
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353(defun normal-top-level ()
354 (if command-line-processed
355 (message "Back to top level.")
356 (setq command-line-processed t)
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357 ;; Give *Messages* the same default-directory as *scratch*,
358 ;; just to keep things predictable.
359 (let ((dir default-directory))
fcaf7de9 360 (with-current-buffer "*Messages*"
8d4c2221 361 (setq default-directory dir)))
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362 ;; `user-full-name' is now known; reset its standard-value here.
363 (put 'user-full-name 'standard-value
364 (list (default-value 'user-full-name)))
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365 ;; For root, preserve owner and group when editing files.
366 (if (equal (user-uid) 0)
367 (setq backup-by-copying-when-mismatch t))
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368 ;; Look in each dir in load-path for a subdirs.el file.
369 ;; If we find one, load it, which will add the appropriate subdirs
370 ;; of that dir into load-path,
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371 ;; Look for a leim-list.el file too. Loading it will register
372 ;; available input methods.
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373 (let ((tail load-path) dir)
374 (while tail
375 (setq dir (car tail))
376 (let ((default-directory dir))
377 (load (expand-file-name "subdirs.el") t t t))
378 (let ((default-directory dir))
379 (load (expand-file-name "leim-list.el") t t t))
380 ;; We don't use a dolist loop and we put this "setq-cdr" command at
381 ;; the end, because the subdirs.el files may add elements to the end
382 ;; of load-path and we want to take it into account.
383 (setq tail (cdr tail))))
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384 (unless (eq system-type 'vax-vms)
385 ;; If the PWD environment variable isn't accurate, delete it.
386 (let ((pwd (getenv "PWD")))
387 (and (stringp pwd)
388 ;; Use FOO/., so that if FOO is a symlink, file-attributes
389 ;; describes the directory linked to, not FOO itself.
390 (or (equal (file-attributes
391 (concat (file-name-as-directory pwd) "."))
392 (file-attributes
393 (concat (file-name-as-directory default-directory)
394 ".")))
395 (setq process-environment
396 (delete (concat "PWD=" pwd)
397 process-environment))))))
492878e4 398 (setq default-directory (abbreviate-file-name default-directory))
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399 (let ((menubar-bindings-done nil))
400 (unwind-protect
401 (command-line)
402 ;; Do this again, in case .emacs defined more abbreviations.
403 (setq default-directory (abbreviate-file-name default-directory))
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404 ;; Specify the file for recording all the auto save files of this session.
405 ;; This is used by recover-session.
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406 (or auto-save-list-file-name
407 (and auto-save-list-file-prefix
408 (setq auto-save-list-file-name
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409 ;; Under MS-DOS our PID is almost always reused between
410 ;; Emacs invocations. We need something more unique.
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411 (cond ((eq system-type 'ms-dos)
412 ;; We are going to access the auto-save
413 ;; directory, so make sure it exists.
414 (make-directory
415 (file-name-directory auto-save-list-file-prefix)
416 t)
f1180544 417 (concat
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418 (make-temp-name
419 (expand-file-name
420 auto-save-list-file-prefix))
421 "~"))
422 (t
423 (expand-file-name
424 (format "%s%d-%s~"
425 auto-save-list-file-prefix
426 (emacs-pid)
427 (system-name))))))))
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428 (unless inhibit-startup-hooks
429 (run-hooks 'emacs-startup-hook)
430 (and term-setup-hook
431 (run-hooks 'term-setup-hook)))
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432
433 ;; Don't do this if we failed to create the initial frame,
434 ;; for instance due to a dense colormap.
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435 (when (or frame-initial-frame
436 ;; If frame-initial-frame has no meaning, do this anyway.
437 (not (and window-system
438 (not noninteractive)
439 (not (eq window-system 'pc)))))
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440 ;; Modify the initial frame based on what .emacs puts into
441 ;; ...-frame-alist.
442 (if (fboundp 'frame-notice-user-settings)
443 (frame-notice-user-settings))
444 (if (fboundp 'frame-set-background-mode)
445 ;; Set the faces for the initial background mode even if
446 ;; frame-notice-user-settings didn't (such as on a tty).
447 ;; frame-set-background-mode is idempotent, so it won't
448 ;; cause any harm if it's already been done.
61b91ad1 449 (let ((frame (selected-frame))
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450 term)
451 (when (and (null window-system)
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452 ;; Don't override default set by files in lisp/term.
453 (null default-frame-background-mode)
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454 (let ((bg (frame-parameter frame 'background-color)))
455 (or (null bg)
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456 (member bg '(unspecified "unspecified-bg"
457 "unspecified-fg")))))
458
6a1e7d67 459 (setq term (getenv "TERM"))
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460 ;; Some files in lisp/term do a better job with the
461 ;; background mode, but we leave this here anyway, in
462 ;; case they remove those files.
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463 (if (string-match "^\\(xterm\\|rxvt\\|dtterm\\|eterm\\)"
464 term)
61b91ad1 465 (setq default-frame-background-mode 'light)))
6a1e7d67 466 (frame-set-background-mode (selected-frame)))))
13ab33c4 467
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468 ;; Now we know the user's default font, so add it to the menu.
469 (if (fboundp 'font-menu-add-default)
470 (font-menu-add-default))
471 (and window-setup-hook
472 (run-hooks 'window-setup-hook))
473 (or menubar-bindings-done
66c24e1e
EZ
474 (if (display-popup-menus-p)
475 (precompute-menubar-bindings)))))))
6f2c86fa
KH
476
477;; Precompute the keyboard equivalents in the menu bar items.
478(defun precompute-menubar-bindings ()
365636dc
RS
479 (let ((submap (lookup-key global-map [menu-bar])))
480 (while submap
481 (and (consp (car submap))
482 (symbolp (car (car submap)))
483 (stringp (car-safe (cdr (car submap))))
484 (keymapp (cdr (cdr (car submap))))
a18042d7
RS
485 (progn
486 (x-popup-menu nil (cdr (cdr (car submap))))
487 (if purify-flag
488 (garbage-collect))))
365636dc 489 (setq submap (cdr submap))))
5b61c6a7 490 (setq define-key-rebound-commands t))
a726e0d1 491
c381f482
EZ
492;; Command-line options supported by tty's:
493(defconst tty-long-option-alist
8957d2bf
EZ
494 '(("--name" . "-name")
495 ("--title" . "-T")
496 ("--reverse-video" . "-reverse")
c381f482 497 ("--foreground-color" . "-fg")
8957d2bf
EZ
498 ("--background-color" . "-bg")
499 ("--color" . "-color")))
c381f482 500
b66b6aeb
GM
501(defconst tool-bar-images-pixel-height 24
502 "Height in pixels of images in the tool bar.")
503
3a55d3d0
JR
504(defvar tool-bar-originally-present nil
505 "Non-nil if tool-bars are present before user and site init files are read.")
506
bca8c7be 507;; Handle the X-like command-line arguments "-fg", "-bg", "-name", etc.
c381f482 508(defun tty-handle-args (args)
bca8c7be 509 (let (rest)
c381f482
EZ
510 (message "%s" args)
511 (while (and args
512 (not (equal (car args) "--")))
bca8c7be
MS
513 (let* ((argi (pop args))
514 (orig-argi argi)
515 argval completion)
c381f482
EZ
516 ;; Check for long options with attached arguments
517 ;; and separate out the attached option argument into argval.
bca8c7be
MS
518 (when (string-match "^\\(--[^=]*\\)=" argi)
519 (setq argval (substring argi (match-end 0))
520 argi (match-string 1 argi)))
521 (when (string-match "^--" argi)
522 (setq completion (try-completion argi tty-long-option-alist))
c381f482
EZ
523 (if (eq completion t)
524 ;; Exact match for long option.
bca8c7be 525 (setq argi (cdr (assoc argi tty-long-option-alist)))
c381f482
EZ
526 (if (stringp completion)
527 (let ((elt (assoc completion tty-long-option-alist)))
528 ;; Check for abbreviated long option.
529 (or elt
bca8c7be
MS
530 (error "Option `%s' is ambiguous" argi))
531 (setq argi (cdr elt)))
c381f482 532 ;; Check for a short option.
bca8c7be
MS
533 (setq argval nil
534 argi orig-argi))))
535 (cond ((member argi '("-fg" "-foreground"))
536 (push (cons 'foreground-color (or argval (pop args)))
537 default-frame-alist))
538 ((member argi '("-bg" "-background"))
539 (push (cons 'background-color (or argval (pop args)))
540 default-frame-alist))
541 ((member argi '("-T" "-name"))
542 (unless argval (setq argval (pop args)))
543 (push (cons 'title
544 (if (stringp argval)
545 argval
546 (let ((case-fold-search t)
547 i)
548 (setq argval (invocation-name))
549
550 ;; Change any . or * characters in name to
551 ;; hyphens, so as to emulate behavior on X.
552 (while
553 (setq i (string-match "[.*]" argval))
554 (aset argval i ?-))
555 argval)))
556 default-frame-alist))
557 ((member argi '("-r" "-rv" "-reverse"))
558 (push '(reverse . t)
559 default-frame-alist))
560 ((equal argi "-color")
561 (unless argval (setq argval 8)) ; default --color means 8 ANSI colors
562 (push (cons 'tty-color-mode
563 (cond
564 ((numberp argval) argval)
565 ((string-match "-?[0-9]+" argval)
566 (string-to-number argval))
567 (t (intern argval))))
568 default-frame-alist))
569 (t
570 (push argi rest)))))
571 (nreverse rest)))
c381f482 572
a726e0d1 573(defun command-line ()
09a1077c
RS
574 (setq command-line-default-directory default-directory)
575
849eedba 576 ;; Choose a reasonable location for temporary files.
a3194d03 577 (custom-reevaluate-setting 'temporary-file-directory)
51db08eb 578 (custom-reevaluate-setting 'small-temporary-file-directory)
a3194d03 579 (custom-reevaluate-setting 'auto-save-file-name-transforms)
849eedba 580
74f2ab06 581 ;; See if we should import version-control from the environment variable.
a726e0d1
JB
582 (let ((vc (getenv "VERSION_CONTROL")))
583 (cond ((eq vc nil)) ;don't do anything if not set
bca8c7be 584 ((member vc '("t" "numbered"))
a726e0d1 585 (setq version-control t))
bca8c7be 586 ((member vc '("nil" "existing"))
a726e0d1 587 (setq version-control nil))
bca8c7be 588 ((member vc '("never" "simple"))
a726e0d1
JB
589 (setq version-control 'never))))
590
79058860
JB
591 ;;! This has been commented out; I currently find the behavior when
592 ;;! split-window-keep-point is nil disturbing, but if I can get used
593 ;;! to it, then it would be better to eliminate the option.
594 ;;! ;; Choose a good default value for split-window-keep-point.
595 ;;! (setq split-window-keep-point (> baud-rate 2400))
f35fe3c6 596
d4308a4d
EZ
597 ;; Set the default strings to display in mode line for
598 ;; end-of-line formats that aren't native to this platform.
599 (cond
600 ((memq system-type '(ms-dos windows-nt emx))
bca8c7be
MS
601 (setq eol-mnemonic-unix "(Unix)"
602 eol-mnemonic-mac "(Mac)"))
bde61f8b
EZ
603 ;; Both Mac and Unix EOLs are now "native" on Mac OS so keep the
604 ;; abbreviated strings `/' and `:' set in coding.c for them.
605 ((eq system-type 'macos)
606 (setq eol-mnemonic-dos "(DOS)"))
bca8c7be
MS
607 (t ; this is for Unix/GNU/Linux systems
608 (setq eol-mnemonic-dos "(DOS)"
609 eol-mnemonic-mac "(Mac)")))
d4308a4d 610
a726e0d1 611 ;; Read window system's init file if using a window system.
1ed14cfd
RS
612 (condition-case error
613 (if (and window-system (not noninteractive))
614 (load (concat term-file-prefix
615 (symbol-name window-system)
616 "-win")
617 ;; Every window system should have a startup file;
618 ;; barf if we can't find it.
619 nil t))
620 ;; If we can't read it, print the error message and exit.
621 (error
2677ad61
RS
622 (princ
623 (if (eq (car error) 'error)
624 (apply 'concat (cdr error))
625 (if (memq 'file-error (get (car error) 'error-conditions))
626 (format "%s: %s"
bca8c7be
MS
627 (nth 1 error)
628 (mapconcat (lambda (obj) (prin1-to-string obj t))
629 (cdr (cdr error)) ", "))
2677ad61 630 (format "%s: %s"
bca8c7be
MS
631 (get (car error) 'error-message)
632 (mapconcat (lambda (obj) (prin1-to-string obj t))
633 (cdr error) ", "))))
2677ad61 634 'external-debugging-output)
27f5188c 635 (terpri 'external-debugging-output)
2677ad61 636 (setq window-system nil)
1ed14cfd 637 (kill-emacs)))
a726e0d1 638
c381f482 639 ;; Windowed displays do this inside their *-win.el.
bca8c7be 640 (unless (or (display-graphic-p) noninteractive)
c381f482
EZ
641 (setq command-line-args (tty-handle-args command-line-args)))
642
640a9cdd
JR
643 (set-locale-environment nil)
644
4b816985 645 ;; Convert preloaded file names to absolute.
9c8b2150
RS
646 (let ((lisp-dir
647 (file-name-directory
648 (locate-file "simple" load-path
dd4451e0 649 (get-load-suffixes)))))
9c8b2150
RS
650
651 (setq load-history
652 (mapcar (lambda (elt)
653 (if (and (stringp (car elt))
654 (not (file-name-absolute-p (car elt))))
655 (cons (concat lisp-dir
656 (car elt)
657 (if (string-match "[.]el$" (car elt))
658 "" ".elc"))
659 (cdr elt))
660 elt))
661 load-history)))
4b816985 662
c16eb7b0
RS
663 ;; Convert the arguments to Emacs internal representation.
664 (let ((args (cdr command-line-args)))
665 (while args
666 (setcar args
667 (decode-coding-string (car args) locale-coding-system t))
bca8c7be 668 (pop args)))
c16eb7b0 669
03e3c30a
JB
670 (let ((done nil)
671 (args (cdr command-line-args)))
672
a726e0d1
JB
673 ;; Figure out which user's init file to load,
674 ;; either from the environment or from the options.
675 (setq init-file-user (if noninteractive nil (user-login-name)))
676 ;; If user has not done su, use current $HOME to find .emacs.
bca8c7be
MS
677 (and init-file-user
678 (equal init-file-user (user-real-login-name))
a726e0d1 679 (setq init-file-user ""))
03e3c30a
JB
680
681 ;; Process the command-line args, and delete the arguments
682 ;; processed. This is consistent with the way main in emacs.c
683 ;; does things.
a726e0d1 684 (while (and (not done) args)
9ab281f0
JB
685 (let* ((longopts '(("--no-init-file") ("--no-site-file") ("--debug-init")
686 ("--user") ("--iconic") ("--icon-type") ("--quick")
687 ("--no-blinking-cursor") ("--basic-display")))
bca8c7be
MS
688 (argi (pop args))
689 (orig-argi argi)
690 argval)
452e9090 691 ;; Handle --OPTION=VALUE format.
bca8c7be 692 (when (string-match "^\\(--[^=]*\\)=" argi)
1b207153 693 (setq argval (substring argi (match-end 0))
bca8c7be 694 argi (match-string 1 argi)))
1b207153
CW
695 (unless (equal argi "--")
696 (let ((completion (try-completion argi longopts)))
697 (if (eq completion t)
698 (setq argi (substring argi 1))
699 (if (stringp completion)
700 (let ((elt (assoc completion longopts)))
701 (or elt
702 (error "Option `%s' is ambiguous" argi))
703 (setq argi (substring (car elt) 1)))
bca8c7be
MS
704 (setq argval nil
705 argi orig-argi)))))
a726e0d1 706 (cond
dc58296d 707 ((member argi '("-Q" "-quick"))
6b61353c
KH
708 (setq init-file-user nil
709 site-run-file nil
dc58296d
RS
710 emacs-quick-startup t))
711 ((member argi '("-D" "-basic-display"))
712 (setq no-blinking-cursor t
713 emacs-basic-display t)
6b61353c 714 (push '(vertical-scroll-bars . nil) initial-frame-alist))
4e0a3971
SM
715 ((member argi '("-q" "-no-init-file"))
716 (setq init-file-user nil))
717 ((member argi '("-u" "-user"))
bca8c7be 718 (setq init-file-user (or argval (pop args))
4e0a3971 719 argval nil))
bca8c7be 720 ((equal argi "-no-site-file")
4e0a3971 721 (setq site-run-file nil))
bca8c7be 722 ((equal argi "-debug-init")
4e0a3971 723 (setq init-file-debug t))
bca8c7be 724 ((equal argi "-iconic")
4e0a3971 725 (push '(visibility . icon) initial-frame-alist))
bca8c7be 726 ((member argi '("-icon-type" "-i" "-itype"))
4e0a3971 727 (push '(icon-type . t) default-frame-alist))
178b4542
JL
728 ((member argi '("-nbc" "-no-blinking-cursor"))
729 (setq no-blinking-cursor t))
4e0a3971 730 ;; Push the popped arg back on the list of arguments.
bca8c7be
MS
731 (t
732 (push argi args)
733 (setq done t)))
096b7031
KH
734 ;; Was argval set but not used?
735 (and argval
736 (error "Option `%s' doesn't allow an argument" argi))))
737
03e3c30a 738 ;; Re-attach the program name to the front of the arg list.
bca8c7be
MS
739 (and command-line-args
740 (setcdr command-line-args args)))
a726e0d1 741
ce98f555
RS
742 (run-hooks 'before-init-hook)
743
ed0fb1f1 744 ;; Under X Window, this creates the X frame and deletes the terminal frame.
14f16b9c
GM
745 (when (fboundp 'frame-initialize)
746 (frame-initialize))
747
ed0fb1f1 748 ;; Turn off blinking cursor if so specified in X resources. This is here
b08cb5a6 749 ;; only because all other settings of no-blinking-cursor are here.
ed0fb1f1
JD
750 (unless (or noninteractive
751 emacs-basic-display
752 (and (memq window-system '(x w32 mac))
753 (not (member (x-get-resource "cursorBlink" "CursorBlink")
754 '("off" "false")))))
755 (setq no-blinking-cursor t))
756
1fe0333f 757 ;; If frame was created with a menu bar, set menu-bar-mode on.
bca8c7be 758 (unless (or noninteractive
dc58296d 759 emacs-basic-display
bca8c7be
MS
760 (and (memq window-system '(x w32))
761 (<= (frame-parameter nil 'menu-bar-lines) 0)))
8ab9589d 762 (menu-bar-mode 1))
c722566c 763
7d1eb6a4 764 ;; If frame was created with a tool bar, switch tool-bar-mode on.
bca8c7be 765 (unless (or noninteractive
dc58296d 766 emacs-basic-display
bca8c7be
MS
767 (not (display-graphic-p))
768 (<= (frame-parameter nil 'tool-bar-lines) 0))
b66b6aeb 769 (tool-bar-mode 1))
7d1eb6a4 770
3413f928 771 ;; Can't do this init in defcustom because the relevant variables
a3194d03
SM
772 ;; are not set.
773 (custom-reevaluate-setting 'blink-cursor-mode)
774 (custom-reevaluate-setting 'normal-erase-is-backspace)
dc86f0a9 775 (custom-reevaluate-setting 'tooltip-mode)
c442c26d 776 (custom-reevaluate-setting 'global-font-lock-mode)
97a7dbee
YM
777 (custom-reevaluate-setting 'mouse-wheel-down-event)
778 (custom-reevaluate-setting 'mouse-wheel-up-event)
db441dba 779 (custom-reevaluate-setting 'file-name-shadow-mode)
a496452f 780 (custom-reevaluate-setting 'send-mail-function)
2cc11fd4 781 (custom-reevaluate-setting 'global-auto-composition-mode)
3b73087e 782
1592c1ef
EZ
783 ;; Register default TTY colors for the case the terminal hasn't a
784 ;; terminal init file.
51f47f64 785 (unless (memq window-system '(x w32 mac))
bca8c7be
MS
786 ;; We do this regardles of whether the terminal supports colors
787 ;; or not, since they can switch that support on or off in
788 ;; mid-session by setting the tty-color-mode frame parameter.
789 (tty-register-default-colors))
1592c1ef 790
3a55d3d0
JR
791 ;; Record whether the tool-bar is present before the user and site
792 ;; init files are processed. frame-notice-user-settings uses this
793 ;; to determine if the tool-bar has been disabled by the init files,
794 ;; and the frame needs to be resized.
795 (when (fboundp 'frame-notice-user-settings)
796 (let ((tool-bar-lines (or (assq 'tool-bar-lines initial-frame-alist)
797 (assq 'tool-bar-lines default-frame-alist))))
798 (setq tool-bar-originally-present
bca8c7be
MS
799 (and tool-bar-lines
800 (cdr tool-bar-lines)
801 (not (eq 0 (cdr tool-bar-lines)))))))
3a55d3d0 802
752ef254
GM
803 (let ((old-scalable-fonts-allowed scalable-fonts-allowed)
804 (old-font-list-limit font-list-limit)
805 (old-face-ignored-fonts face-ignored-fonts))
806
752ef254
GM
807 ;; Run the site-start library if it exists. The point of this file is
808 ;; that it is run before .emacs. There is no point in doing this after
809 ;; .emacs; that is useless.
f1180544 810 (if site-run-file
752ef254
GM
811 (load site-run-file t t))
812
813 ;; Sites should not disable this. Only individuals should disable
814 ;; the startup message.
815 (setq inhibit-startup-message nil)
816
f963ea40 817 ;; Warn for invalid user name.
ce98f555
RS
818 (when init-file-user
819 (if (string-match "[~/:\n]" init-file-user)
820 (display-warning 'initialization
821 (format "Invalid user name %s"
822 init-file-user)
823 :error)
824 (if (file-directory-p (expand-file-name (concat "~" init-file-user)))
825 nil
826 (display-warning 'initialization
827 (format "User %s has no home directory"
828 init-file-user)
829 :error))))
f963ea40 830
752ef254
GM
831 ;; Load that user's init file, or the default one, or none.
832 (let (debug-on-error-from-init-file
833 debug-on-error-should-be-set
834 (debug-on-error-initial
835 (if (eq init-file-debug t) 'startup init-file-debug))
836 (orig-enable-multibyte default-enable-multibyte-characters))
837 (let ((debug-on-error debug-on-error-initial)
838 ;; This function actually reads the init files.
839 (inner
840 (function
841 (lambda ()
842 (if init-file-user
843 (let ((user-init-file-1
4e0a3971 844 (cond
752ef254
GM
845 ((eq system-type 'ms-dos)
846 (concat "~" init-file-user "/_emacs"))
847 ((eq system-type 'windows-nt)
fe7ecaf2 848 ;; Prefer .emacs on Windows.
752ef254
GM
849 (if (directory-files "~" nil "^\\.emacs\\(\\.elc?\\)?$")
850 "~/.emacs"
fe7ecaf2
JR
851 ;; Also support _emacs for compatibility.
852 (if (directory-files "~" nil "^_emacs\\(\\.elc?\\)?$")
853 "~/_emacs"
854 ;; But default to .emacs if _emacs does not exist.
855 "~/.emacs")))
f1180544 856 ((eq system-type 'vax-vms)
752ef254 857 "sys$login:.emacs")
4e0a3971 858 (t
752ef254
GM
859 (concat "~" init-file-user "/.emacs")))))
860 ;; This tells `load' to store the file name found
861 ;; into user-init-file.
862 (setq user-init-file t)
863 (load user-init-file-1 t t)
f1180544 864
a04d5983
RS
865 (when (eq user-init-file t)
866 ;; If we did not find ~/.emacs, try
c3ab3701 867 ;; ~/.emacs.d/init.el.
a04d5983
RS
868 (let ((otherfile
869 (expand-file-name
c3ab3701 870 "init"
a04d5983 871 (file-name-as-directory
c3ab3701 872 (concat "~" init-file-user "/.emacs.d")))))
a04d5983
RS
873 (load otherfile t t)
874
875 ;; If we did not find the user's init file,
876 ;; set user-init-file conclusively.
877 ;; Don't let it be set from default.el.
878 (when (eq user-init-file t)
879 (setq user-init-file user-init-file-1))))
f1180544 880
752ef254
GM
881 ;; If we loaded a compiled file, set
882 ;; `user-init-file' to the source version if that
883 ;; exists.
884 (when (and user-init-file
885 (equal (file-name-extension user-init-file)
886 "elc"))
887 (let* ((source (file-name-sans-extension user-init-file))
888 (alt (concat source ".el")))
889 (setq source (cond ((file-exists-p alt) alt)
890 ((file-exists-p source) source)
891 (t nil)))
892 (when source
893 (when (file-newer-than-file-p source user-init-file)
894 (message "Warning: %s is newer than %s"
895 source user-init-file)
896 (sit-for 1))
897 (setq user-init-file source))))
f1180544 898
bca8c7be
MS
899 (unless inhibit-default-init
900 (let ((inhibit-startup-message nil))
901 ;; Users are supposed to be told their rights.
902 ;; (Plus how to get help and how to undo.)
903 ;; Don't you dare turn this off for anyone
904 ;; except yourself.
905 (load "default" t t)))))))))
752ef254
GM
906 (if init-file-debug
907 ;; Do this without a condition-case if the user wants to debug.
908 (funcall inner)
909 (condition-case error
910 (progn
911 (funcall inner)
912 (setq init-file-had-error nil))
913 (error
914 (let ((message-log-max nil))
915 (save-excursion
916 (set-buffer (get-buffer-create "*Messages*"))
917 (insert "\n\n"
918 (format "An error has occurred while loading `%s':\n\n"
919 user-init-file)
920 (format "%s%s%s"
921 (get (car error) 'error-message)
922 (if (cdr error) ": " "")
f5b6cffd 923 (mapconcat (lambda (s) (prin1-to-string s t)) (cdr error) ", "))
752ef254 924 "\n\n"
f5b6cffd
KS
925 "To ensure normal operation, you should investigate and remove the\n"
926 "cause of the error in your initialization file. Start Emacs with\n"
927 "the `--debug-init' option to view a complete error backtrace.\n\n"))
752ef254
GM
928 (message "Error in init file: %s%s%s"
929 (get (car error) 'error-message)
930 (if (cdr error) ": " "")
931 (mapconcat 'prin1-to-string (cdr error) ", "))
f5b6cffd
KS
932 (let ((pop-up-windows nil))
933 (pop-to-buffer "*Messages*"))
752ef254 934 (setq init-file-had-error t)))))
ac3186fd 935
9c8b2150
RS
936 (if (and deactivate-mark transient-mark-mode)
937 (with-current-buffer (window-buffer)
938 (deactivate-mark)))
939
ac3186fd
RS
940 ;; If the user has a file of abbrevs, read it.
941 (if (file-exists-p abbrev-file-name)
942 (quietly-read-abbrev-file abbrev-file-name))
943
70b199c3
RS
944 ;; If the abbrevs came entirely from the init file or the
945 ;; abbrevs file, they do not need saving.
946 (setq abbrevs-changed nil)
947
752ef254
GM
948 ;; If we can tell that the init file altered debug-on-error,
949 ;; arrange to preserve the value that it set up.
950 (or (eq debug-on-error debug-on-error-initial)
951 (setq debug-on-error-should-be-set t
952 debug-on-error-from-init-file debug-on-error)))
953 (if debug-on-error-should-be-set
954 (setq debug-on-error debug-on-error-from-init-file))
955 (unless (or default-enable-multibyte-characters
956 (eq orig-enable-multibyte default-enable-multibyte-characters))
957 ;; Init file changed to unibyte. Reset existing multibyte
958 ;; buffers (probably *scratch*, *Messages*, *Minibuff-0*).
959 ;; Arguably this should only be done if they're free of
960 ;; multibyte characters.
961 (mapcar (lambda (buffer)
962 (with-current-buffer buffer
963 (if enable-multibyte-characters
964 (set-buffer-multibyte nil))))
965 (buffer-list))
966 ;; Also re-set the language environment in case it was
967 ;; originally done before unibyte was set and is sensitive to
968 ;; unibyte (display table, terminal coding system &c).
969 (set-language-environment current-language-environment)))
f1180544 970
752ef254 971 ;; Do this here in case the init file sets mail-host-address.
5b88a2c5 972 (if (equal user-mail-address "")
752ef254
GM
973 (setq user-mail-address (concat (user-login-name) "@"
974 (or mail-host-address
975 (system-name)))))
976
d60b49ac
DN
977 ;; Originally face attributes were specified via
978 ;; `font-lock-face-attributes'. Users then changed the default
979 ;; face attributes by setting that variable. However, we try and
980 ;; be back-compatible and respect its value if set except for
981 ;; faces where M-x customize has been used to save changes for the
982 ;; face.
983 (when (boundp 'font-lock-face-attributes)
984 (let ((face-attributes font-lock-face-attributes))
985 (while face-attributes
986 (let* ((face-attribute (pop face-attributes))
987 (face (car face-attribute)))
988 ;; Rustle up a `defface' SPEC from a
989 ;; `font-lock-face-attributes' entry.
990 (unless (get face 'saved-face)
991 (let ((foreground (nth 1 face-attribute))
992 (background (nth 2 face-attribute))
993 (bold-p (nth 3 face-attribute))
994 (italic-p (nth 4 face-attribute))
995 (underline-p (nth 5 face-attribute))
996 face-spec)
997 (when foreground
998 (setq face-spec (cons ':foreground (cons foreground face-spec))))
999 (when background
1000 (setq face-spec (cons ':background (cons background face-spec))))
1001 (when bold-p
1002 (setq face-spec (append '(:weight bold) face-spec)))
1003 (when italic-p
1004 (setq face-spec (append '(:slant italic) face-spec)))
1005 (when underline-p
1006 (setq face-spec (append '(:underline t) face-spec)))
1007 (face-spec-set face (list (list t face-spec)) nil)))))))
1008
752ef254
GM
1009 ;; If parameter have been changed in the init file which influence
1010 ;; face realization, clear the face cache so that new faces will
1011 ;; be realized.
1012 (unless (and (eq scalable-fonts-allowed old-scalable-fonts-allowed)
1013 (eq font-list-limit old-font-list-limit)
1014 (eq face-ignored-fonts old-face-ignored-fonts))
1015 (clear-face-cache)))
f1180544 1016
e3bd99f5
RM
1017 (run-hooks 'after-init-hook)
1018
1fc67c11 1019 ;; Decode all default-directory.
cea927ed
KH
1020 (if (and default-enable-multibyte-characters locale-coding-system)
1021 (save-excursion
1022 (dolist (elt (buffer-list))
1023 (set-buffer elt)
1024 (if default-directory
1025 (setq default-directory
1026 (decode-coding-string default-directory
1027 locale-coding-system t))))
1028 (setq command-line-default-directory
1029 (decode-coding-string command-line-default-directory
1030 locale-coding-system t))))
1031
a726e0d1
JB
1032 ;; If *scratch* exists and init file didn't change its mode, initialize it.
1033 (if (get-buffer "*scratch*")
694210c4 1034 (with-current-buffer "*scratch*"
a726e0d1
JB
1035 (if (eq major-mode 'fundamental-mode)
1036 (funcall initial-major-mode))))
f1180544 1037
a726e0d1
JB
1038 ;; Load library for our terminal type.
1039 ;; User init file can set term-file-prefix to nil to prevent this.
bca8c7be
MS
1040 (unless (or noninteractive
1041 window-system
1042 (null term-file-prefix))
c7dc8ae1
SM
1043 (let* ((TERM (getenv "TERM"))
1044 (term TERM)
bca8c7be
MS
1045 hyphend)
1046 (while (and term
1047 (not (load (concat term-file-prefix term) t t)))
1048 ;; Strip off last hyphen and what follows, then try again
1049 (setq term
c7dc8ae1 1050 (if (setq hyphend (string-match "[-_][^-_]+\\'" term))
bca8c7be 1051 (substring term 0 hyphend)
4f0c9ba7 1052 nil)))
c7dc8ae1
SM
1053 (setq term TERM)
1054 ;; The terminal file has been loaded, now call the terminal specific
1055 ;; initialization function.
1056 (while term
1057 (let ((term-init-func (intern-soft (concat "terminal-init-" term))))
1058 (if (not (fboundp term-init-func))
1059 ;; Strip off last hyphen and what follows, then try again
1060 (setq term
1061 (if (setq hyphend (string-match "[-_][^-_]+\\'" term))
1062 (substring term 0 hyphend)
1063 nil))
1064 (setq term nil)
4f0c9ba7 1065 (funcall term-init-func))))))
a726e0d1 1066
5777a167
RS
1067 ;; Update the out-of-memory error message based on user's key bindings
1068 ;; for save-some-buffers.
1069 (setq memory-signal-data
1070 (list 'error
1071 (substitute-command-keys "Memory exhausted--use \\[save-some-buffers] then exit and restart Emacs")))
1072
03e3c30a 1073 ;; Process the remaining args.
a726e0d1
JB
1074 (command-line-1 (cdr command-line-args))
1075
1076 ;; If -batch, terminate after processing the command options.
ca57f55d
JD
1077 (if noninteractive (kill-emacs t))
1078
1079 ;; Run emacs-session-restore (session management) if started by
1080 ;; the session manager and we have a session manager connection.
bca8c7be
MS
1081 (if (and (boundp 'x-session-previous-id)
1082 (stringp x-session-previous-id))
a99df87d
RS
1083 (with-no-warnings
1084 (emacs-session-restore x-session-previous-id))))
a726e0d1 1085
46cfd295 1086(defcustom initial-scratch-message (purecopy "\
3b79c219
GM
1087;; This buffer is for notes you don't want to save, and for Lisp evaluation.
1088;; If you want to create a file, visit that file with C-x C-f,
1089;; then enter the text in that file's own buffer.
9fe3219e 1090
46cfd295 1091")
9fe3219e 1092 "Initial message displayed in *scratch* buffer at startup.
249d9683
LT
1093If this is nil, no message will be displayed.
1094If `inhibit-splash-screen' is non-nil, then no message is displayed,
1095regardless of the value of this variable."
fa071a47
RS
1096 :type '(choice (text :tag "Message")
1097 (const :tag "none" nil))
1098 :group 'initialization)
9fe3219e 1099
ce9ded5d
GM
1100\f
1101;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1102;;; Fancy splash screen
1103;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1104
1105(defvar fancy-splash-text
26ff68aa 1106 '((:face variable-pitch
926aa0ee 1107 "You can do basic editing with the menu bar and scroll bar \
926aa0ee 1108using the mouse.\n\n"
26ff68aa 1109 :face (variable-pitch :weight bold)
ce9ded5d 1110 "Important Help menu items:\n"
959f1226
TTN
1111 :face variable-pitch
1112 (lambda ()
1113 (let* ((en "TUTORIAL")
1114 (tut (or (get-language-info current-language-environment
1115 'tutorial)
1116 en))
1117 (title (with-temp-buffer
1118 (insert-file-contents
1119 (expand-file-name tut data-directory)
1120 nil 0 256)
1121 (search-forward ".")
1122 (buffer-substring (point-min) (1- (point))))))
1123 ;; If there is a specific tutorial for the current language
1124 ;; environment and it is not English, append its title.
1125 (concat
1126 "Emacs Tutorial\tLearn how to use Emacs efficiently"
1127 (if (string= en tut)
1128 ""
1129 (concat " (" title ")"))
1130 "\n")))
1131 :face variable-pitch "\
1fc02b3c 1132Emacs FAQ\tFrequently asked questions and answers
5777a167 1133Read the Emacs Manual\tView the Emacs manual using Info
1fc02b3c 1134\(Non)Warranty\tGNU Emacs comes with "
26ff68aa 1135 :face (variable-pitch :slant oblique)
ce9ded5d 1136 "ABSOLUTELY NO WARRANTY\n"
26ff68aa 1137 :face variable-pitch
d3c5bad2 1138 "\
d7618b60 1139Copying Conditions\tConditions for redistributing and changing Emacs
9ab281f0 1140Getting New Versions\tHow to obtain the latest version of Emacs
682b60ae 1141More Manuals / Ordering Manuals Buying printed manuals from the FSF\n")
d7618b60
GM
1142 (:face variable-pitch
1143 "You can do basic editing with the menu bar and scroll bar \
1144using the mouse.\n\n"
1145 :face (variable-pitch :weight bold)
1146 "Useful File menu items:\n"
1147 :face variable-pitch "\
1148Exit Emacs\t(Or type Control-x followed by Control-c)
dc58296d 1149Recover Crashed Session\tRecover files you were editing before a crash
d7618b60
GM
1150
1151
1152
3f334882 1153
d7618b60
GM
1154"
1155 ))
ce9ded5d
GM
1156 "A list of texts to show in the middle part of splash screens.
1157Each element in the list should be a list of strings or pairs
1158`:face FACE', like `fancy-splash-insert' accepts them.")
1159
1160
fb275c02 1161(defgroup fancy-splash-screen ()
a01bb1db 1162 "Fancy splash screen when Emacs starts."
fb275c02 1163 :version "21.1"
a01bb1db
GM
1164 :group 'initialization)
1165
1166
1ef0ffc6 1167(defcustom fancy-splash-delay 7
49939379 1168 "*Delay in seconds between splash screens."
a01bb1db 1169 :group 'fancy-splash-screen
ce9ded5d
GM
1170 :type 'integer)
1171
1172
1ef0ffc6 1173(defcustom fancy-splash-max-time 30
e9da51a1 1174 "*Show splash screens for at most this number of seconds.
1ef0ffc6 1175Values less than twice `fancy-splash-delay' are ignored."
e9da51a1
GM
1176 :group 'fancy-splash-screen
1177 :type 'integer)
1178
1179
8ad8561b
GM
1180(defcustom fancy-splash-image nil
1181 "*The image to show in the splash screens, or nil for defaults."
a01bb1db 1182 :group 'fancy-splash-screen
8ad8561b
GM
1183 :type '(choice (const :tag "Default" nil)
1184 (file :tag "File")))
ce9ded5d
GM
1185
1186
f645586f
GM
1187;; These are temporary storage areas for the splash screen display.
1188
1189(defvar fancy-current-text nil)
1190(defvar fancy-splash-help-echo nil)
e9da51a1 1191(defvar fancy-splash-stop-time nil)
eae91b60 1192(defvar fancy-splash-outer-buffer nil)
f645586f 1193
ce9ded5d
GM
1194(defun fancy-splash-insert (&rest args)
1195 "Insert text into the current buffer, with faces.
959f1226
TTN
1196Arguments from ARGS should be either strings, functions called
1197with no args that return a string, or pairs `:face FACE',
ce9ded5d 1198where FACE is a valid face specification, as it can be used with
a8a64bf4 1199`put-text-property'."
ce9ded5d
GM
1200 (let ((current-face nil))
1201 (while args
1202 (if (eq (car args) :face)
1203 (setq args (cdr args) current-face (car args))
959f1226
TTN
1204 (insert (propertize (let ((it (car args)))
1205 (if (functionp it)
1206 (funcall it)
1207 it))
f645586f
GM
1208 'face current-face
1209 'help-echo fancy-splash-help-echo)))
ce9ded5d
GM
1210 (setq args (cdr args)))))
1211
1212
1213(defun fancy-splash-head ()
1214 "Insert the head part of the splash screen into the current buffer."
51e8cfdd
GM
1215 (let* ((image-file (cond ((stringp fancy-splash-image)
1216 fancy-splash-image)
1217 ((and (display-color-p)
1218 (image-type-available-p 'xpm))
1219 (if (and (fboundp 'x-display-planes)
1220 (= (funcall 'x-display-planes) 8))
1221 "splash8.xpm"
1222 "splash.xpm"))
1223 (t "splash.pbm")))
1224 (img (create-image image-file))
ce9ded5d
GM
1225 (image-width (and img (car (image-size img))))
1226 (window-width (window-width (selected-window))))
1227 (when img
1228 (when (> window-width image-width)
f645586f 1229 ;; Center the image in the window.
6b61353c
KH
1230 (insert (propertize " " 'display
1231 `(space :align-to (+ center (-0.5 . ,img)))))
f645586f 1232
e7f3afa9
MB
1233 ;; Change the color of the XPM version of the splash image
1234 ;; so that it is visible with a dark frame background.
1235 (when (and (memq 'xpm img)
1236 (eq (frame-parameter nil 'background-mode) 'dark))
1237 (setq img (append img '(:color-symbols (("#000000" . "gray30"))))))
1238
f645586f
GM
1239 ;; Insert the image with a help-echo and a keymap.
1240 (let ((map (make-sparse-keymap))
a622451f 1241 (help-echo "mouse-2: browse http://www.gnu.org/"))
f645586f
GM
1242 (define-key map [mouse-2]
1243 (lambda ()
1244 (interactive)
a622451f 1245 (browse-url "http://www.gnu.org/")
f645586f
GM
1246 (throw 'exit nil)))
1247 (define-key map [down-mouse-2] 'ignore)
1248 (define-key map [up-mouse-2] 'ignore)
1249 (insert-image img (propertize "xxx" 'help-echo help-echo
1250 'keymap map)))
ce9ded5d 1251 (insert "\n"))))
1de0ddd3
DL
1252 (fancy-splash-insert
1253 :face '(variable-pitch :background "red")
1254 "\n!! This version is ALPHA status. It may lose your data!!\n\n")
9d5cf87c
RS
1255 (fancy-splash-insert
1256 :face '(variable-pitch :foreground "red")
1257 (if (eq system-type 'gnu/linux)
1258 "GNU Emacs is one component of the GNU/Linux operating system."
b831c087 1259 "GNU Emacs is one component of the GNU operating system."))
eae91b60
RS
1260 (insert "\n")
1261 (unless (equal (buffer-name fancy-splash-outer-buffer) "*scratch*")
1262 (fancy-splash-insert :face 'variable-pitch
1263 (substitute-command-keys
1264 "Type \\[recenter] to begin editing your file.\n"))))
ce9ded5d
GM
1265
1266
1267(defun fancy-splash-tail ()
1268 "Insert the tail part of the splash screen into the current buffer."
95fadcca
GM
1269 (let ((fg (if (eq (frame-parameter nil 'background-mode) 'dark)
1270 "cyan" "darkblue")))
1271 (fancy-splash-insert :face `(variable-pitch :foreground ,fg)
1272 "\nThis is "
1273 (emacs-version)
1274 "\n"
1275 :face '(variable-pitch :height 0.5)
1ca41b97 1276 "Copyright (C) 2006 Free Software Foundation, Inc.")
ed638cc9
RS
1277 (and auto-save-list-file-prefix
1278 ;; Don't signal an error if the
1279 ;; directory for auto-save-list files
1280 ;; does not yet exist.
1281 (file-directory-p (file-name-directory
1282 auto-save-list-file-prefix))
1283 (directory-files
1284 (file-name-directory auto-save-list-file-prefix)
1285 nil
1286 (concat "\\`"
1287 (regexp-quote (file-name-nondirectory
1288 auto-save-list-file-prefix)))
1289 t)
1290 (fancy-splash-insert :face '(variable-pitch :foreground "red")
1291 "\n\nIf an Emacs session crashed recently, "
1292 "type M-x recover-session RET\nto recover"
1293 " the files you were editing."))))
ce9ded5d 1294
f645586f
GM
1295(defun fancy-splash-screens-1 (buffer)
1296 "Timer function displaying a splash screen."
e9da51a1
GM
1297 (when (> (float-time) fancy-splash-stop-time)
1298 (throw 'stop-splashing nil))
f645586f
GM
1299 (unless fancy-current-text
1300 (setq fancy-current-text fancy-splash-text))
1301 (let ((text (car fancy-current-text)))
1302 (set-buffer buffer)
1303 (erase-buffer)
b693e375
RS
1304 (if pure-space-overflow
1305 (insert "Warning Warning Pure space overflow Warning Warning\n"))
f645586f
GM
1306 (fancy-splash-head)
1307 (apply #'fancy-splash-insert text)
1308 (fancy-splash-tail)
1309 (unless (current-message)
1310 (message fancy-splash-help-echo))
1311 (set-buffer-modified-p nil)
dbeb499b 1312 (goto-char (point-min))
f645586f
GM
1313 (force-mode-line-update)
1314 (setq fancy-current-text (cdr fancy-current-text))))
1315
1316
1317(defun fancy-splash-default-action ()
732950b1
JB
1318 "Stop displaying the splash screen buffer.
1319This is an internal function used to turn off the splash screen after
1320the user caused an input event by hitting a key or clicking with the
1321mouse."
f645586f 1322 (interactive)
ed256b30 1323 (if (and (memq 'down (event-modifiers last-command-event))
d54f452e
KS
1324 (eq (posn-window (event-start last-command-event))
1325 (selected-window)))
1326 ;; This is a mouse-down event in the spash screen window.
1327 ;; Ignore it and consume the corresponding mouse-up event.
1328 (read-event)
1329 (push last-command-event unread-command-events))
f645586f
GM
1330 (throw 'exit nil))
1331
1332
ce9ded5d 1333(defun fancy-splash-screens ()
f645586f 1334 "Display fancy splash screens when Emacs starts."
5b61c6a7 1335 (setq fancy-splash-help-echo (startup-echo-area-message))
848c7757 1336 (let ((old-hourglass display-hourglass)
eae91b60
RS
1337 (fancy-splash-outer-buffer (current-buffer))
1338 splash-buffer
ff4ec1f7 1339 (old-minor-mode-map-alist minor-mode-map-alist)
9f0ae1a5 1340 (old-emulation-mode-map-alists emulation-mode-map-alists)
6b20fb8e 1341 (frame (fancy-splash-frame))
5b61c6a7 1342 timer)
6b20fb8e
RS
1343 (save-selected-window
1344 (select-frame frame)
1345 (switch-to-buffer "GNU Emacs")
1346 (setq tab-width 20)
1347 (setq splash-buffer (current-buffer))
1348 (catch 'stop-splashing
1349 (unwind-protect
1350 (let ((map (make-sparse-keymap)))
1351 (use-local-map map)
1352 (define-key map [switch-frame] 'ignore)
1353 (define-key map [t] 'fancy-splash-default-action)
1354 (define-key map [mouse-movement] 'ignore)
1355 (define-key map [mode-line t] 'ignore)
1356 (setq cursor-type nil
1357 display-hourglass nil
1358 minor-mode-map-alist nil
9f0ae1a5 1359 emulation-mode-map-alists nil
6b20fb8e 1360 buffer-undo-list t
f1180544 1361 mode-line-format (propertize "---- %b %-"
6b20fb8e
RS
1362 'face '(:weight bold))
1363 fancy-splash-stop-time (+ (float-time)
1ef0ffc6 1364 fancy-splash-max-time)
6b20fb8e
RS
1365 timer (run-with-timer 0 fancy-splash-delay
1366 #'fancy-splash-screens-1
1367 splash-buffer))
1368 (recursive-edit))
e9da51a1 1369 (cancel-timer timer)
ff4ec1f7 1370 (setq display-hourglass old-hourglass
9f0ae1a5
KS
1371 minor-mode-map-alist old-minor-mode-map-alist
1372 emulation-mode-map-alists old-emulation-mode-map-alists)
6b20fb8e
RS
1373 (kill-buffer splash-buffer))))))
1374
1375(defun fancy-splash-frame ()
1376 "Return the frame to use for the fancy splash screen.
1377Returning non-nil does not mean we should necessarily
1378use the fancy splash screen, but if we do use it,
1379we put it on this frame."
1380 (let (chosen-frame)
3a321ddb 1381 (dolist (frame (append (frame-list) (list (selected-frame))))
6b20fb8e
RS
1382 (if (and (frame-visible-p frame)
1383 (not (window-minibuffer-p (frame-selected-window frame))))
1384 (setq chosen-frame frame)))
1385 chosen-frame))
f645586f 1386
285991dc
GM
1387(defun use-fancy-splash-screens-p ()
1388 "Return t if fancy splash screens should be used."
6b61353c
KH
1389 (when (and (display-graphic-p)
1390 (or (and (display-color-p)
285991dc 1391 (image-type-available-p 'xpm))
6b61353c 1392 (image-type-available-p 'pbm)))
16d2fae9
JPW
1393 (let ((frame (fancy-splash-frame)))
1394 (when frame
1395 (let* ((img (create-image (or fancy-splash-image
1396 (if (and (display-color-p)
1397 (image-type-available-p 'xpm))
1398 "splash.xpm" "splash.pbm"))))
1399 (image-height (and img (cdr (image-size img))))
1400 (window-height (1- (window-height (frame-selected-window frame)))))
1401 (> window-height (+ image-height 19)))))))
285991dc
GM
1402
1403
c61453ea
PJ
1404(defun normal-splash-screen ()
1405 "Display splash screen when Emacs starts."
82e736c1
JPW
1406 (let ((prev-buffer (current-buffer)))
1407 (unwind-protect
1408 (with-current-buffer (get-buffer-create "GNU Emacs")
260a5020
SM
1409 (set (make-local-variable 'tab-width) 8)
1410 (set (make-local-variable 'mode-line-format)
1411 (propertize "---- %b %-" 'face '(:weight bold)))
1412
1413 (if pure-space-overflow
1414 (insert "Warning Warning Pure space overflow Warning Warning\n"))
1415
1416 ;; The convention for this piece of code is that
1417 ;; each piece of output starts with one or two newlines
1418 ;; and does not end with any newlines.
1419 (insert "Welcome to GNU Emacs")
1420 (insert
1421 (if (eq system-type 'gnu/linux)
1422 ", one component of the GNU/Linux operating system.\n"
1423 ", a part of the GNU operating system.\n"))
1424
1425 (unless (equal (buffer-name prev-buffer) "*scratch*")
1426 (insert (substitute-command-keys
1427 "\nType \\[recenter] to begin editing your file.\n")))
1428
1429 (if (display-mouse-p)
1430 ;; The user can use the mouse to activate menus
1431 ;; so give help in terms of menu items.
1432 (progn
1433 (insert "\
c61453ea
PJ
1434You can do basic editing with the menu bar and scroll bar using the mouse.
1435
1436Useful File menu items:
1437Exit Emacs (or type Control-x followed by Control-c)
93bb512f 1438Recover Crashed Session Recover files you were editing before a crash
c61453ea
PJ
1439
1440Important Help menu items:
9ab281f0 1441Emacs Tutorial Learn how to use Emacs efficiently
c61453ea 1442Emacs FAQ Frequently asked questions and answers
5777a167 1443Read the Emacs Manual View the Emacs manual using Info
c61453ea 1444\(Non)Warranty GNU Emacs comes with ABSOLUTELY NO WARRANTY
9ab281f0
JB
1445Copying Conditions Conditions for redistributing and changing Emacs
1446Getting New Versions How to obtain the latest version of Emacs
1447More Manuals / Ordering Manuals How to order printed manuals from the FSF
c61453ea 1448")
260a5020
SM
1449 (insert "\n\n" (emacs-version)
1450 "
1ca41b97 1451Copyright (C) 2006 Free Software Foundation, Inc."))
c61453ea 1452
260a5020
SM
1453 ;; No mouse menus, so give help using kbd commands.
1454
1455 ;; If keys have their default meanings,
1456 ;; use precomputed string to save lots of time.
1457 (if (and (eq (key-binding "\C-h") 'help-command)
1458 (eq (key-binding "\C-xu") 'advertised-undo)
1459 (eq (key-binding "\C-x\C-c") 'save-buffers-kill-emacs)
1460 (eq (key-binding "\C-ht") 'help-with-tutorial)
1461 (eq (key-binding "\C-hi") 'info)
1462 (eq (key-binding "\C-hr") 'info-emacs-manual)
1463 (eq (key-binding "\C-h\C-n") 'view-emacs-news))
1464 (insert "
c61453ea 1465Get help C-h (Hold down CTRL and press h)
5777a167
RS
1466Emacs manual C-h r
1467Emacs tutorial C-h t Undo changes C-x u
1468Buy manuals C-h C-m Exit Emacs C-x C-c
1469Browse manuals C-h i")
1470
260a5020
SM
1471 (insert (substitute-command-keys
1472 (format "\n
c61453ea 1473Get help %s
5777a167 1474Emacs manual \\[info-emacs-manual]
82e736c1
JPW
1475Emacs tutorial \\[help-with-tutorial]\tUndo changes\t\\[advertised-undo]
1476Buy manuals \\[view-order-manuals]\tExit Emacs\t\\[save-buffers-kill-emacs]
5777a167 1477Browse manuals \\[info]"
260a5020
SM
1478 (let ((where (where-is-internal
1479 'help-command nil t)))
1480 (if where
1481 (key-description where)
1482 "M-x help"))))))
1483
1484 ;; Say how to use the menu bar with the keyboard.
1485 (if (and (eq (key-binding "\M-`") 'tmm-menubar)
1486 (eq (key-binding [f10]) 'tmm-menubar))
1487 (insert "
c61453ea 1488Activate menubar F10 or ESC ` or M-`")
260a5020 1489 (insert (substitute-command-keys "
c61453ea
PJ
1490Activate menubar \\[tmm-menubar]")))
1491
260a5020
SM
1492 ;; Many users seem to have problems with these.
1493 (insert "
c61453ea
PJ
1494\(`C-' means use the CTRL key. `M-' means use the Meta (or Alt) key.
1495If you have no Meta key, you may instead type ESC followed by the character.)")
1496
260a5020
SM
1497 (insert "\n\n" (emacs-version)
1498 "
1ca41b97 1499Copyright (C) 2006 Free Software Foundation, Inc.")
c61453ea 1500
260a5020
SM
1501 (if (and (eq (key-binding "\C-h\C-c") 'describe-copying)
1502 (eq (key-binding "\C-h\C-d") 'describe-distribution)
1503 (eq (key-binding "\C-h\C-w") 'describe-no-warranty))
1504 (insert
1505 "\n
c61453ea
PJ
1506GNU Emacs comes with ABSOLUTELY NO WARRANTY; type C-h C-w for full details.
1507Emacs is Free Software--Free as in Freedom--so you can redistribute copies
1508of Emacs and modify it; type C-h C-c to see the conditions.
1509Type C-h C-d for information on getting the latest version.")
260a5020
SM
1510 (insert (substitute-command-keys
1511 "\n
c61453ea
PJ
1512GNU Emacs comes with ABSOLUTELY NO WARRANTY; type \\[describe-no-warranty] for full details.
1513Emacs is Free Software--Free as in Freedom--so you can redistribute copies
1514of Emacs and modify it; type \\[describe-copying] to see the conditions.
1515Type \\[describe-distribution] for information on getting the latest version."))))
1516
260a5020
SM
1517 ;; The rest of the startup screen is the same on all
1518 ;; kinds of terminals.
1519
1520 ;; Give information on recovering, if there was a crash.
1521 (and auto-save-list-file-prefix
1522 ;; Don't signal an error if the
1523 ;; directory for auto-save-list files
1524 ;; does not yet exist.
1525 (file-directory-p (file-name-directory
1526 auto-save-list-file-prefix))
1527 (directory-files
1528 (file-name-directory auto-save-list-file-prefix)
1529 nil
1530 (concat "\\`"
1531 (regexp-quote (file-name-nondirectory
1532 auto-save-list-file-prefix)))
1533 t)
1534 (insert "\n\nIf an Emacs session crashed recently, "
1535 "type M-x recover-session RET\nto recover"
1536 " the files you were editing."))
1537
1538 ;; Display the input that we set up in the buffer.
1539 (set-buffer-modified-p nil)
1540 (goto-char (point-min))
866d0913
SM
1541 (if (or (window-minibuffer-p)
1542 (window-dedicated-p (selected-window)))
1543 ;; There's no point is using pop-to-buffer since creating
1544 ;; a new frame will generate enough events that the
1545 ;; subsequent `sit-for' will immediately return anyway.
1546 nil ;; (pop-to-buffer (current-buffer))
1547 (save-window-excursion
1548 (switch-to-buffer (current-buffer))
1549 (sit-for 120))))
82e736c1
JPW
1550 ;; Unwind ... ensure splash buffer is killed
1551 (kill-buffer "GNU Emacs"))))
1552
c61453ea 1553
f645586f
GM
1554(defun startup-echo-area-message ()
1555 (if (eq (key-binding "\C-h\C-p") 'describe-project)
1556 "For information about the GNU Project and its goals, type C-h C-p."
1557 (substitute-command-keys
1558 "For information about the GNU Project and its goals, type \
1559\\[describe-project].")))
ce9ded5d
GM
1560
1561
49939379 1562(defun display-startup-echo-area-message ()
15fa6db0 1563 (let ((resize-mini-windows t))
8a26c165 1564 (message "%s" (startup-echo-area-message))))
f645586f 1565
49939379 1566
c61453ea
PJ
1567(defun display-splash-screen ()
1568 "Display splash screen according to display.
1569Fancy splash screens are used on graphic displays,
1570normal otherwise."
1571 (interactive)
6b61353c 1572 (if (use-fancy-splash-screens-p)
c61453ea
PJ
1573 (fancy-splash-screens)
1574 (normal-splash-screen)))
1575
1576
a726e0d1 1577(defun command-line-1 (command-line-args-left)
52320897 1578 (or noninteractive (input-pending-p) init-file-had-error
ed638cc9
RS
1579 ;; t if the init file says to inhibit the echo area startup message.
1580 (and inhibit-startup-echo-area-message
1581 user-init-file
1582 (or (and (get 'inhibit-startup-echo-area-message 'saved-value)
1583 (equal inhibit-startup-echo-area-message
bca8c7be 1584 (if (equal init-file-user "")
ed638cc9
RS
1585 (user-login-name)
1586 init-file-user)))
1587 ;; Wasn't set with custom; see if .emacs has a setq.
1588 (let ((buffer (get-buffer-create " *temp*")))
1589 (prog1
1590 (condition-case nil
1591 (save-excursion
1592 (set-buffer buffer)
1593 (insert-file-contents user-init-file)
1594 (re-search-forward
1595 (concat
1596 "([ \t\n]*setq[ \t\n]+"
1597 "inhibit-startup-echo-area-message[ \t\n]+"
1598 (regexp-quote
1599 (prin1-to-string
bca8c7be 1600 (if (equal init-file-user "")
ed638cc9
RS
1601 (user-login-name)
1602 init-file-user)))
1603 "[ \t\n]*)")
1604 nil t))
1605 (error nil))
1606 (kill-buffer buffer)))))
11dd83c8
GM
1607 ;; display-splash-screen at the end of command-line-1 calls
1608 ;; use-fancy-splash-screens-p. This can cause image.el to be
1609 ;; loaded, putting "Loading image... done" in the echo area.
1610 ;; This hides startup-echo-area-message. So
1611 ;; use-fancy-splash-screens-p is called here simply to get the
1612 ;; loading of image.el (if needed) out of the way before
1613 ;; display-startup-echo-area-message runs.
79f9f704 1614 (progn
79f9f704
GM
1615 (use-fancy-splash-screens-p)
1616 (display-startup-echo-area-message)))
ed638cc9
RS
1617
1618 ;; Delay 2 seconds after an init file error message
1619 ;; was displayed, so user can read it.
bca8c7be
MS
1620 (when init-file-had-error
1621 (sit-for 2))
1622
cb58ea33
RS
1623 (when (and pure-space-overflow
1624 (not noninteractive))
1625 (display-warning
1626 'initialization
1627 "Building Emacs overflowed pure space."
1628 ;; FIXME: Tell the user what kind of problems are possible and how to fix
1629 ;; the overflow.
1630 :warning))
1631
bca8c7be
MS
1632 (when command-line-args-left
1633 ;; We have command args; process them.
1634 (let ((dir command-line-default-directory)
1635 (file-count 0)
1636 first-file-buffer
1637 tem
b9687971
TTN
1638 ;; This approach loses for "-batch -L DIR --eval "(require foo)",
1639 ;; if foo is intended to be found in DIR.
1640 ;;
1641 ;; ;; The directories listed in --directory/-L options will *appear*
1642 ;; ;; at the front of `load-path' in the order they appear on the
1643 ;; ;; command-line. We cannot do this by *placing* them at the front
1644 ;; ;; in the order they appear, so we need this variable to hold them,
1645 ;; ;; temporarily.
1646 ;; extra-load-path
1647 ;;
1648 ;; To DTRT we keep track of the splice point and modify `load-path'
1649 ;; straight away upon any --directory/-L option.
1650 splice
bca8c7be
MS
1651 just-files ;; t if this follows the magic -- option.
1652 ;; This includes our standard options' long versions
1653 ;; and long versions of what's on command-switch-alist.
1654 (longopts
1655 (append '(("--funcall") ("--load") ("--insert") ("--kill")
1656 ("--directory") ("--eval") ("--execute") ("--no-splash")
6ff901c7 1657 ("--find-file") ("--visit") ("--file") ("--no-desktop"))
bca8c7be
MS
1658 (mapcar (lambda (elt)
1659 (list (concat "-" (car elt))))
1660 command-switch-alist)))
1661 (line 0)
1662 (column 0))
1663
1664 ;; Add the long X options to longopts.
1665 (dolist (tem command-line-x-option-alist)
1666 (if (string-match "^--" (car tem))
1667 (push (list (car tem)) longopts)))
1668
1669 ;; Loop, processing options.
1670 (while command-line-args-left
1671 (let* ((argi (car command-line-args-left))
1672 (orig-argi argi)
1673 argval completion)
1674 (setq command-line-args-left (cdr command-line-args-left))
1675
1676 ;; Do preliminary decoding of the option.
1677 (if just-files
1678 ;; After --, don't look for options; treat all args as files.
1679 (setq argi "")
1680 ;; Convert long options to ordinary options
1681 ;; and separate out an attached option argument into argval.
1682 (when (string-match "^\\(--[^=]*\\)=" argi)
1683 (setq argval (substring argi (match-end 0))
1684 argi (match-string 1 argi)))
1685 (if (equal argi "--")
1686 (setq completion nil)
1687 (setq completion (try-completion argi longopts)))
1688 (if (eq completion t)
1689 (setq argi (substring argi 1))
1690 (if (stringp completion)
1691 (let ((elt (assoc completion longopts)))
1692 (or elt
1693 (error "Option `%s' is ambiguous" argi))
1694 (setq argi (substring (car elt) 1)))
1695 (setq argval nil
1696 argi orig-argi))))
1697
1698 ;; Execute the option.
1699 (cond ((setq tem (assoc argi command-switch-alist))
1700 (if argval
1701 (let ((command-line-args-left
1702 (cons argval command-line-args-left)))
1703 (funcall (cdr tem) argi))
1704 (funcall (cdr tem) argi)))
1705
1706 ((equal argi "-no-splash")
1707 (setq inhibit-startup-message t))
1708
1709 ((member argi '("-f" ; what the manual claims
1710 "-funcall"
1711 "-e")) ; what the source used to say
1712 (setq tem (intern (or argval (pop command-line-args-left))))
f39864ec 1713 (if (commandp tem)
bca8c7be
MS
1714 (command-execute tem)
1715 (funcall tem)))
1716
1717 ((member argi '("-eval" "-execute"))
1718 (eval (read (or argval (pop command-line-args-left)))))
bca8c7be
MS
1719
1720 ((member argi '("-L" "-directory"))
b9687971
TTN
1721 (setq tem (expand-file-name
1722 (command-line-normalize-file-name
1723 (or argval (pop command-line-args-left)))))
1724 (cond (splice (setcdr splice (cons tem (cdr splice)))
1725 (setq splice (cdr splice)))
1726 (t (setq load-path (cons tem load-path)
1727 splice load-path))))
bca8c7be
MS
1728
1729 ((member argi '("-l" "-load"))
1730 (let* ((file (command-line-normalize-file-name
1731 (or argval (pop command-line-args-left))))
1732 ;; Take file from default dir if it exists there;
1733 ;; otherwise let `load' search for it.
1734 (file-ex (expand-file-name file)))
1735 (when (file-exists-p file-ex)
1736 (setq file file-ex))
1737 (load file nil t)))
1738
56b3b16b
RS
1739 ;; This is used to handle -script. It's not clear
1740 ;; we need to document it.
0f0cef08
RS
1741 ((member argi '("-scriptload"))
1742 (let* ((file (command-line-normalize-file-name
1743 (or argval (pop command-line-args-left))))
1744 ;; Take file from default dir.
1745 (file-ex (expand-file-name file)))
1746 (load file-ex nil t t)))
1747
bca8c7be
MS
1748 ((equal argi "-insert")
1749 (setq tem (or argval (pop command-line-args-left)))
1750 (or (stringp tem)
1751 (error "File name omitted from `-insert' option"))
1752 (insert-file-contents (command-line-normalize-file-name tem)))
1753
1754 ((equal argi "-kill")
1755 (kill-emacs t))
1756
6ff901c7
EZ
1757 ;; This is for when they use --no-desktop with -q, or
1758 ;; don't load Desktop in their .emacs. If desktop.el
1759 ;; _is_ loaded, it will handle this switch, and we
1760 ;; won't see it by the time we get here.
1761 ((equal argi "-no-desktop")
1762 (message "\"--no-desktop\" ignored because the Desktop package is not loaded"))
1763
bca8c7be 1764 ((string-match "^\\+[0-9]+\\'" argi)
027a4b6b 1765 (setq line (string-to-number argi)))
bca8c7be
MS
1766
1767 ((string-match "^\\+\\([0-9]+\\):\\([0-9]+\\)\\'" argi)
027a4b6b
JB
1768 (setq line (string-to-number (match-string 1 argi))
1769 column (string-to-number (match-string 2 argi))))
bca8c7be
MS
1770
1771 ((setq tem (assoc argi command-line-x-option-alist))
1772 ;; Ignore X-windows options and their args if not using X.
1773 (setq command-line-args-left
1774 (nthcdr (nth 1 tem) command-line-args-left)))
1775
1776 ((member argi '("-find-file" "-file" "-visit"))
1777 ;; An explicit option to specify visiting a file.
1778 (setq tem (or argval (pop command-line-args-left)))
1779 (unless (stringp tem)
1780 (error "File name omitted from `%s' option" argi))
1781 (setq file-count (1+ file-count))
1782 (let ((file (expand-file-name
1783 (command-line-normalize-file-name tem) dir)))
1784 (if (= file-count 1)
1785 (setq first-file-buffer (find-file file))
1786 (find-file-other-window file)))
1787 (or (zerop line)
1788 (goto-line line))
1789 (setq line 0)
1790 (unless (< column 1)
1791 (move-to-column (1- column)))
1792 (setq column 0))
1793
1794 ((equal argi "--")
1795 (setq just-files t))
1796 (t
1797 ;; We have almost exhausted our options. See if the
1798 ;; user has made any other command-line options available
1799 (let ((hooks command-line-functions) ;; lrs 7/31/89
1800 (did-hook nil))
1801 (while (and hooks
1802 (not (setq did-hook (funcall (car hooks)))))
1803 (setq hooks (cdr hooks)))
1804 (if (not did-hook)
1805 ;; Presume that the argument is a file name.
1806 (progn
1807 (if (string-match "\\`-" argi)
1808 (error "Unknown option `%s'" argi))
1809 (setq file-count (1+ file-count))
1810 (let ((file
1811 (expand-file-name
1812 (command-line-normalize-file-name orig-argi)
1813 dir)))
1814 (if (= file-count 1)
1815 (setq first-file-buffer (find-file file))
1816 (find-file-other-window file)))
1817 (or (zerop line)
1818 (goto-line line))
1819 (setq line 0)
1820 (unless (< column 1)
1821 (move-to-column (1- column)))
1822 (setq column 0))))))))
1823
bca8c7be
MS
1824 ;; If 3 or more files visited, and not all visible,
1825 ;; show user what they all are. But leave the last one current.
1826 (and (> file-count 2)
1827 (not noninteractive)
1828 (not inhibit-startup-buffer-menu)
1829 (or (get-buffer-window first-file-buffer)
1830 (list-buffers)))))
eae91b60
RS
1831
1832 ;; Maybe display a startup screen.
6b61353c
KH
1833 (unless (or inhibit-startup-message
1834 noninteractive
3c24b4e4 1835 emacs-quick-startup)
eae91b60
RS
1836 ;; Display a startup screen, after some preparations.
1837
1838 ;; If there are no switches to process, we might as well
1839 ;; run this hook now, and there may be some need to do it
1840 ;; before doing any output.
deebb0e9 1841 (run-hooks 'emacs-startup-hook)
eae91b60
RS
1842 (and term-setup-hook
1843 (run-hooks 'term-setup-hook))
deebb0e9 1844 (setq inhibit-startup-hooks t)
eae91b60
RS
1845
1846 ;; It's important to notice the user settings before we
1847 ;; display the startup message; otherwise, the settings
1848 ;; won't take effect until the user gives the first
1849 ;; keystroke, and that's distracting.
1850 (when (fboundp 'frame-notice-user-settings)
1851 (frame-notice-user-settings))
1852
1853 ;; If there are no switches to process, we might as well
1854 ;; run this hook now, and there may be some need to do it
1855 ;; before doing any output.
1856 (when window-setup-hook
1857 (run-hooks 'window-setup-hook)
1858 ;; Don't let the hook be run twice.
1859 (setq window-setup-hook nil))
1860
1861 ;; Do this now to avoid an annoying delay if the user
1862 ;; clicks the menu bar during the sit-for.
1863 (when (display-popup-menus-p)
1864 (precompute-menubar-bindings))
d759a2f5
RS
1865 (with-no-warnings
1866 (setq menubar-bindings-done t))
ed638cc9 1867
eae91b60
RS
1868 ;; If *scratch* is selected and it is empty, insert an
1869 ;; initial message saying not to create a file there.
1870 (when (and initial-scratch-message
bca8c7be 1871 (equal (buffer-name) "*scratch*")
ed638cc9 1872 (= 0 (buffer-size)))
eae91b60
RS
1873 (insert initial-scratch-message)
1874 (set-buffer-modified-p nil))
ed638cc9 1875
eae91b60
RS
1876 ;; If user typed input during all that work,
1877 ;; abort the startup screen. Otherwise, display it now.
c61453ea
PJ
1878 (unless (input-pending-p)
1879 (display-splash-screen))))
c88ab9ce 1880
49939379 1881
47c7adae
RS
1882(defun command-line-normalize-file-name (file)
1883 "Collapse multiple slashes to one, to handle non-Emacs file names."
6b9e794f
RS
1884 (save-match-data
1885 ;; Use arg 1 so that we don't collapse // at the start of the file name.
1886 ;; That is significant on some systems.
1887 ;; However, /// at the beginning is supposed to mean just /, not //.
1888 (if (string-match "^///+" file)
1889 (setq file (replace-match "/" t t file)))
1890 (while (string-match "//+" file 1)
1891 (setq file (replace-match "/" t t file)))
1892 file))
47c7adae 1893
a3194d03 1894;; arch-tag: 7e294698-244d-4758-984b-4047f887a5db
c88ab9ce 1895;;; startup.el ends here