message format spec fixes (commit # 7)
[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,
0d30b337 4;; 2001, 2002, 2003, 2004, 2005 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
43(defcustom inhibit-startup-message nil
1d7da582 44 "*Non-nil inhibits the initial startup message.
a726e0d1 45This is for use in your personal init file, once you are familiar
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46with the contents of the startup message."
47 :type 'boolean
48 :group 'initialization)
a726e0d1 49
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50(defvaralias 'inhibit-splash-screen 'inhibit-startup-message)
51
42a3e6fa 52(defcustom inhibit-startup-echo-area-message nil
1d7da582 53 "*Non-nil inhibits the initial startup echo area message.
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54Setting this variable takes effect
55only if you do it with the customization buffer
94487c4e 56or if your `.emacs' file contains a line of this form:
54a003f7 57 (setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\")
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58If your `.emacs' file is byte-compiled, use the following form instead:
59 (eval '(setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\"))
1d7da582 60Thus, someone else using a copy of your `.emacs' file will see
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61the startup message unless he personally acts to inhibit it."
62 :type '(choice (const :tag "Don't inhibit")
63 (string :tag "Enter your user name, to inhibit"))
64 :group 'initialization)
1d7da582 65
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66(defcustom inhibit-default-init nil
67 "*Non-nil inhibits loading the `default' library."
68 :type 'boolean
69 :group 'initialization)
a726e0d1 70
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71(defcustom inhibit-startup-buffer-menu nil
72 "*Non-nil inhibits display of buffer list when more than 2 files are loaded."
73 :type 'boolean
74 :group 'initialization)
75
d7fa5aa2 76(defvar command-switch-alist nil
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77 "Alist of command-line switches.
78Elements look like (SWITCH-STRING . HANDLER-FUNCTION).
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79HANDLER-FUNCTION receives the switch string as its sole argument;
80the remaining command-line args are in the variable `command-line-args-left'.")
a726e0d1 81
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82(defvar command-line-args-left nil
83 "List of command-line args not yet processed.")
84
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85(defvar command-line-functions nil ;; lrs 7/31/89
86 "List of functions to process unrecognized command-line arguments.
87Each function should access the dynamically bound variables
b4484ea8 88`argi' (the current argument) and `command-line-args-left' (the remaining
a726e0d1 89arguments). The function should return non-nil only if it recognizes and
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90processes `argi'. If it does so, it may consume successive arguments by
91altering `command-line-args-left' to remove them.")
a726e0d1 92
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93(defvar command-line-default-directory nil
94 "Default directory to use for command line arguments.
95This is normally copied from `default-directory' when Emacs starts.")
96
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97;;; This is here, rather than in x-win.el, so that we can ignore these
98;;; options when we are not using X.
46cfd295 99(defconst command-line-x-option-alist
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100 '(("-bw" 1 x-handle-numeric-switch border-width)
101 ("-d" 1 x-handle-display)
102 ("-display" 1 x-handle-display)
5676ab57 103 ("-name" 1 x-handle-name-switch)
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104 ("-title" 1 x-handle-switch title)
105 ("-T" 1 x-handle-switch title)
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106 ("-r" 0 x-handle-switch reverse t)
107 ("-rv" 0 x-handle-switch reverse t)
108 ("-reverse" 0 x-handle-switch reverse t)
109 ("-reverse-video" 0 x-handle-switch reverse t)
110 ("-fn" 1 x-handle-switch font)
111 ("-font" 1 x-handle-switch font)
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112 ("-fs" 0 x-handle-initial-switch fullscreen fullboth)
113 ("-fw" 0 x-handle-initial-switch fullscreen fullwidth)
114 ("-fh" 0 x-handle-initial-switch fullscreen fullheight)
b3afdeb8 115 ("-ib" 1 x-handle-numeric-switch internal-border-width)
1f7f78f1 116 ("-g" 1 x-handle-geometry)
9ff6bda1 117 ("-lsp" 1 x-handle-numeric-switch line-spacing)
1f7f78f1 118 ("-geometry" 1 x-handle-geometry)
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119 ("-fg" 1 x-handle-switch foreground-color)
120 ("-foreground" 1 x-handle-switch foreground-color)
121 ("-bg" 1 x-handle-switch background-color)
122 ("-background" 1 x-handle-switch background-color)
123 ("-ms" 1 x-handle-switch mouse-color)
124 ("-itype" 0 x-handle-switch icon-type t)
125 ("-i" 0 x-handle-switch icon-type t)
126 ("-iconic" 0 x-handle-iconic)
127 ("-xrm" 1 x-handle-xrm-switch)
128 ("-cr" 1 x-handle-switch cursor-color)
129 ("-vb" 0 x-handle-switch vertical-scroll-bars t)
130 ("-hb" 0 x-handle-switch horizontal-scroll-bars t)
131 ("-bd" 1 x-handle-switch)
132 ("--border-width" 1 x-handle-numeric-switch border-width)
133 ("--display" 1 x-handle-display)
5676ab57 134 ("--name" 1 x-handle-name-switch)
7775acb8 135 ("--title" 1 x-handle-switch title)
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136 ("--reverse-video" 0 x-handle-switch reverse t)
137 ("--font" 1 x-handle-switch font)
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138 ("--fullscreen" 0 x-handle-initial-switch fullscreen fullboth)
139 ("--fullwidth" 0 x-handle-initial-switch fullscreen fullwidth)
140 ("--fullheight" 0 x-handle-initial-switch fullscreen fullheight)
b3afdeb8 141 ("--internal-border" 1 x-handle-numeric-switch internal-border-width)
1f7f78f1 142 ("--geometry" 1 x-handle-geometry)
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143 ("--foreground-color" 1 x-handle-switch foreground-color)
144 ("--background-color" 1 x-handle-switch background-color)
145 ("--mouse-color" 1 x-handle-switch mouse-color)
146 ("--icon-type" 0 x-handle-switch icon-type t)
147 ("--iconic" 0 x-handle-iconic)
148 ("--xrm" 1 x-handle-xrm-switch)
149 ("--cursor-color" 1 x-handle-switch cursor-color)
150 ("--vertical-scroll-bars" 0 x-handle-switch vertical-scroll-bars t)
9ff6bda1 151 ("--line-spacing" 1 x-handle-numeric-switch line-spacing)
7f944e8e 152 ("--border-color" 1 x-handle-switch border-color)
ca57f55d 153 ("--smid" 1 x-handle-smid))
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154 "Alist of X Windows options.
155Each element has the form
156 (NAME NUMARGS HANDLER FRAME-PARAM VALUE)
157where NAME is the option name string, NUMARGS is the number of arguments
158that the option accepts, HANDLER is a function to call to handle the option.
159FRAME-PARAM (optional) is the frame parameter this option specifies,
160and VALUE is the value which is given to that frame parameter
161\(most options use the argument for this, so VALUE is not present).")
162
e3bd99f5 163(defvar before-init-hook nil
db3f571a 164 "Normal hook run after handling urgent options but before loading init files.")
3fc958a4 165
e3bd99f5 166(defvar after-init-hook nil
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167 "Normal hook run after loading the init files, `~/.emacs' and `default.el'.
168There is no `condition-case' around the running of these functions;
169therefore, if you set `debug-on-error' non-nil in `.emacs',
170an error in one of these functions will invoke the debugger.")
171
172(defvar emacs-startup-hook nil
173 "Normal hook run after loading init files and handling the command line.")
e3bd99f5 174
a726e0d1 175(defvar term-setup-hook nil
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176 "Normal hook run after loading terminal-specific Lisp code.
177It also follows `emacs-startup-hook'. This hook exists for users to set,
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178so as to override the definitions made by the terminal-specific file.
179Emacs never sets this variable itself.")
180
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181(defvar inhibit-startup-hooks nil
182 "Non-nil means don't run `term-setup-hook' and `emacs-startup-hook'.
183This is because we already did so.")
184
a726e0d1 185(defvar keyboard-type nil
b4484ea8 186 "The brand of keyboard you are using.
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187This variable is used to define the proper function and keypad
188keys for use under X. It is used in a fashion analogous to the
189environment variable TERM.")
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190
191(defvar window-setup-hook nil
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192 "Normal hook run to initialize window system display.
193Emacs runs this hook after processing the command line arguments and loading
194the user's init file.")
a726e0d1 195
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196(defcustom initial-major-mode 'lisp-interaction-mode
197 "Major mode command symbol to use for the initial *scratch* buffer."
ce2f921e 198 :type 'function
42a3e6fa 199 :group 'initialization)
a726e0d1 200
42a3e6fa 201(defcustom init-file-user nil
a726e0d1 202 "Identity of user whose `.emacs' file is or was read.
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203The value is nil if `-q' or `--no-init-file' was specified,
204meaning do not load any init file.
205
206Otherwise, the value may be the null string, meaning use the init file
207for the user that originally logged in, or it may be a
208string containing a user's name meaning use that person's init file.
a726e0d1 209
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210In either of the latter cases, `(concat \"~\" init-file-user \"/\")'
211evaluates to the name of the directory where the `.emacs' file was
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212looked for.
213
214Setting `init-file-user' does not prevent Emacs from loading
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215`site-start.el'. The only way to do that is to use `--no-site-file'."
216 :type '(choice (const :tag "none" nil) string)
217 :group 'initialization)
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
c16eb7b0
RS
645 ;; Convert the arguments to Emacs internal representation.
646 (let ((args (cdr command-line-args)))
647 (while args
648 (setcar args
649 (decode-coding-string (car args) locale-coding-system t))
bca8c7be 650 (pop args)))
c16eb7b0 651
03e3c30a
JB
652 (let ((done nil)
653 (args (cdr command-line-args)))
654
a726e0d1
JB
655 ;; Figure out which user's init file to load,
656 ;; either from the environment or from the options.
657 (setq init-file-user (if noninteractive nil (user-login-name)))
658 ;; If user has not done su, use current $HOME to find .emacs.
bca8c7be
MS
659 (and init-file-user
660 (equal init-file-user (user-real-login-name))
a726e0d1 661 (setq init-file-user ""))
03e3c30a
JB
662
663 ;; Process the command-line args, and delete the arguments
664 ;; processed. This is consistent with the way main in emacs.c
665 ;; does things.
a726e0d1 666 (while (and (not done) args)
9ab281f0
JB
667 (let* ((longopts '(("--no-init-file") ("--no-site-file") ("--debug-init")
668 ("--user") ("--iconic") ("--icon-type") ("--quick")
669 ("--no-blinking-cursor") ("--basic-display")))
bca8c7be
MS
670 (argi (pop args))
671 (orig-argi argi)
672 argval)
452e9090 673 ;; Handle --OPTION=VALUE format.
bca8c7be 674 (when (string-match "^\\(--[^=]*\\)=" argi)
1b207153 675 (setq argval (substring argi (match-end 0))
bca8c7be 676 argi (match-string 1 argi)))
1b207153
CW
677 (unless (equal argi "--")
678 (let ((completion (try-completion argi longopts)))
679 (if (eq completion t)
680 (setq argi (substring argi 1))
681 (if (stringp completion)
682 (let ((elt (assoc completion longopts)))
683 (or elt
684 (error "Option `%s' is ambiguous" argi))
685 (setq argi (substring (car elt) 1)))
bca8c7be
MS
686 (setq argval nil
687 argi orig-argi)))))
a726e0d1 688 (cond
dc58296d 689 ((member argi '("-Q" "-quick"))
e2c60824
KS
690 (setq init-file-user nil
691 site-run-file nil
dc58296d
RS
692 emacs-quick-startup t))
693 ((member argi '("-D" "-basic-display"))
694 (setq no-blinking-cursor t
695 emacs-basic-display t)
e2c60824 696 (push '(vertical-scroll-bars . nil) initial-frame-alist))
4e0a3971
SM
697 ((member argi '("-q" "-no-init-file"))
698 (setq init-file-user nil))
699 ((member argi '("-u" "-user"))
bca8c7be 700 (setq init-file-user (or argval (pop args))
4e0a3971 701 argval nil))
bca8c7be 702 ((equal argi "-no-site-file")
4e0a3971 703 (setq site-run-file nil))
bca8c7be 704 ((equal argi "-debug-init")
4e0a3971 705 (setq init-file-debug t))
bca8c7be 706 ((equal argi "-iconic")
4e0a3971 707 (push '(visibility . icon) initial-frame-alist))
bca8c7be 708 ((member argi '("-icon-type" "-i" "-itype"))
4e0a3971 709 (push '(icon-type . t) default-frame-alist))
178b4542
JL
710 ((member argi '("-nbc" "-no-blinking-cursor"))
711 (setq no-blinking-cursor t))
4e0a3971 712 ;; Push the popped arg back on the list of arguments.
bca8c7be
MS
713 (t
714 (push argi args)
715 (setq done t)))
096b7031
KH
716 ;; Was argval set but not used?
717 (and argval
718 (error "Option `%s' doesn't allow an argument" argi))))
719
03e3c30a 720 ;; Re-attach the program name to the front of the arg list.
bca8c7be
MS
721 (and command-line-args
722 (setcdr command-line-args args)))
a726e0d1 723
ed0fb1f1 724 ;; Under X Window, this creates the X frame and deletes the terminal frame.
14f16b9c
GM
725 (when (fboundp 'frame-initialize)
726 (frame-initialize))
727
ed0fb1f1 728 ;; Turn off blinking cursor if so specified in X resources. This is here
b08cb5a6 729 ;; only because all other settings of no-blinking-cursor are here.
ed0fb1f1
JD
730 (unless (or noninteractive
731 emacs-basic-display
732 (and (memq window-system '(x w32 mac))
733 (not (member (x-get-resource "cursorBlink" "CursorBlink")
734 '("off" "false")))))
735 (setq no-blinking-cursor t))
736
1fe0333f 737 ;; If frame was created with a menu bar, set menu-bar-mode on.
bca8c7be 738 (unless (or noninteractive
dc58296d 739 emacs-basic-display
bca8c7be
MS
740 (and (memq window-system '(x w32))
741 (<= (frame-parameter nil 'menu-bar-lines) 0)))
8ab9589d 742 (menu-bar-mode 1))
c722566c 743
7d1eb6a4 744 ;; If frame was created with a tool bar, switch tool-bar-mode on.
bca8c7be 745 (unless (or noninteractive
dc58296d 746 emacs-basic-display
bca8c7be
MS
747 (not (display-graphic-p))
748 (<= (frame-parameter nil 'tool-bar-lines) 0))
b66b6aeb 749 (tool-bar-mode 1))
7d1eb6a4 750
3413f928 751 ;; Can't do this init in defcustom because the relevant variables
a3194d03
SM
752 ;; are not set.
753 (custom-reevaluate-setting 'blink-cursor-mode)
754 (custom-reevaluate-setting 'normal-erase-is-backspace)
dc86f0a9 755 (custom-reevaluate-setting 'tooltip-mode)
3b73087e 756
1592c1ef
EZ
757 ;; Register default TTY colors for the case the terminal hasn't a
758 ;; terminal init file.
bca8c7be
MS
759 (unless (memq window-system '(x w32))
760 ;; We do this regardles of whether the terminal supports colors
761 ;; or not, since they can switch that support on or off in
762 ;; mid-session by setting the tty-color-mode frame parameter.
763 (tty-register-default-colors))
1592c1ef 764
3a55d3d0
JR
765 ;; Record whether the tool-bar is present before the user and site
766 ;; init files are processed. frame-notice-user-settings uses this
767 ;; to determine if the tool-bar has been disabled by the init files,
768 ;; and the frame needs to be resized.
769 (when (fboundp 'frame-notice-user-settings)
770 (let ((tool-bar-lines (or (assq 'tool-bar-lines initial-frame-alist)
771 (assq 'tool-bar-lines default-frame-alist))))
772 (setq tool-bar-originally-present
bca8c7be
MS
773 (and tool-bar-lines
774 (cdr tool-bar-lines)
775 (not (eq 0 (cdr tool-bar-lines)))))))
3a55d3d0 776
752ef254
GM
777 (let ((old-scalable-fonts-allowed scalable-fonts-allowed)
778 (old-font-list-limit font-list-limit)
779 (old-face-ignored-fonts face-ignored-fonts))
780
781 (run-hooks 'before-init-hook)
782
783 ;; Run the site-start library if it exists. The point of this file is
784 ;; that it is run before .emacs. There is no point in doing this after
785 ;; .emacs; that is useless.
f1180544 786 (if site-run-file
752ef254
GM
787 (load site-run-file t t))
788
789 ;; Sites should not disable this. Only individuals should disable
790 ;; the startup message.
791 (setq inhibit-startup-message nil)
792
f963ea40
RS
793 ;; Warn for invalid user name.
794 (and init-file-user
795 (not (file-directory-p (expand-file-name (concat "~" init-file-user))))
796 (display-warning 'initialization
797 (format "User %s has no home directory"
798 init-file-user)
799 :error))
800
752ef254
GM
801 ;; Load that user's init file, or the default one, or none.
802 (let (debug-on-error-from-init-file
803 debug-on-error-should-be-set
804 (debug-on-error-initial
805 (if (eq init-file-debug t) 'startup init-file-debug))
806 (orig-enable-multibyte default-enable-multibyte-characters))
807 (let ((debug-on-error debug-on-error-initial)
808 ;; This function actually reads the init files.
809 (inner
810 (function
811 (lambda ()
812 (if init-file-user
813 (let ((user-init-file-1
4e0a3971 814 (cond
752ef254
GM
815 ((eq system-type 'ms-dos)
816 (concat "~" init-file-user "/_emacs"))
817 ((eq system-type 'windows-nt)
fe7ecaf2 818 ;; Prefer .emacs on Windows.
752ef254
GM
819 (if (directory-files "~" nil "^\\.emacs\\(\\.elc?\\)?$")
820 "~/.emacs"
fe7ecaf2
JR
821 ;; Also support _emacs for compatibility.
822 (if (directory-files "~" nil "^_emacs\\(\\.elc?\\)?$")
823 "~/_emacs"
824 ;; But default to .emacs if _emacs does not exist.
825 "~/.emacs")))
f1180544 826 ((eq system-type 'vax-vms)
752ef254 827 "sys$login:.emacs")
4e0a3971 828 (t
752ef254
GM
829 (concat "~" init-file-user "/.emacs")))))
830 ;; This tells `load' to store the file name found
831 ;; into user-init-file.
832 (setq user-init-file t)
833 (load user-init-file-1 t t)
f1180544 834
a04d5983
RS
835 (when (eq user-init-file t)
836 ;; If we did not find ~/.emacs, try
837 ;; ~/.emacs.d/.emacs.
838 (let ((otherfile
839 (expand-file-name
840 (file-name-nondirectory user-init-file-1)
841 (file-name-as-directory
842 (expand-file-name
843 ".emacs.d"
844 (file-name-directory user-init-file-1))))))
845 (load otherfile t t)
846
847 ;; If we did not find the user's init file,
848 ;; set user-init-file conclusively.
849 ;; Don't let it be set from default.el.
850 (when (eq user-init-file t)
851 (setq user-init-file user-init-file-1))))
f1180544 852
752ef254
GM
853 ;; If we loaded a compiled file, set
854 ;; `user-init-file' to the source version if that
855 ;; exists.
856 (when (and user-init-file
857 (equal (file-name-extension user-init-file)
858 "elc"))
859 (let* ((source (file-name-sans-extension user-init-file))
860 (alt (concat source ".el")))
861 (setq source (cond ((file-exists-p alt) alt)
862 ((file-exists-p source) source)
863 (t nil)))
864 (when source
865 (when (file-newer-than-file-p source user-init-file)
866 (message "Warning: %s is newer than %s"
867 source user-init-file)
868 (sit-for 1))
869 (setq user-init-file source))))
f1180544 870
bca8c7be
MS
871 (unless inhibit-default-init
872 (let ((inhibit-startup-message nil))
873 ;; Users are supposed to be told their rights.
874 ;; (Plus how to get help and how to undo.)
875 ;; Don't you dare turn this off for anyone
876 ;; except yourself.
877 (load "default" t t)))))))))
752ef254
GM
878 (if init-file-debug
879 ;; Do this without a condition-case if the user wants to debug.
880 (funcall inner)
881 (condition-case error
882 (progn
883 (funcall inner)
884 (setq init-file-had-error nil))
885 (error
886 (let ((message-log-max nil))
887 (save-excursion
888 (set-buffer (get-buffer-create "*Messages*"))
889 (insert "\n\n"
890 (format "An error has occurred while loading `%s':\n\n"
891 user-init-file)
892 (format "%s%s%s"
893 (get (car error) 'error-message)
894 (if (cdr error) ": " "")
f5b6cffd 895 (mapconcat (lambda (s) (prin1-to-string s t)) (cdr error) ", "))
752ef254 896 "\n\n"
f5b6cffd
KS
897 "To ensure normal operation, you should investigate and remove the\n"
898 "cause of the error in your initialization file. Start Emacs with\n"
899 "the `--debug-init' option to view a complete error backtrace.\n\n"))
752ef254
GM
900 (message "Error in init file: %s%s%s"
901 (get (car error) 'error-message)
902 (if (cdr error) ": " "")
903 (mapconcat 'prin1-to-string (cdr error) ", "))
f5b6cffd
KS
904 (let ((pop-up-windows nil))
905 (pop-to-buffer "*Messages*"))
752ef254 906 (setq init-file-had-error t)))))
ac3186fd
RS
907
908 ;; If the user has a file of abbrevs, read it.
909 (if (file-exists-p abbrev-file-name)
910 (quietly-read-abbrev-file abbrev-file-name))
911
70b199c3
RS
912 ;; If the abbrevs came entirely from the init file or the
913 ;; abbrevs file, they do not need saving.
914 (setq abbrevs-changed nil)
915
752ef254
GM
916 ;; If we can tell that the init file altered debug-on-error,
917 ;; arrange to preserve the value that it set up.
918 (or (eq debug-on-error debug-on-error-initial)
919 (setq debug-on-error-should-be-set t
920 debug-on-error-from-init-file debug-on-error)))
921 (if debug-on-error-should-be-set
922 (setq debug-on-error debug-on-error-from-init-file))
923 (unless (or default-enable-multibyte-characters
924 (eq orig-enable-multibyte default-enable-multibyte-characters))
925 ;; Init file changed to unibyte. Reset existing multibyte
926 ;; buffers (probably *scratch*, *Messages*, *Minibuff-0*).
927 ;; Arguably this should only be done if they're free of
928 ;; multibyte characters.
929 (mapcar (lambda (buffer)
930 (with-current-buffer buffer
931 (if enable-multibyte-characters
932 (set-buffer-multibyte nil))))
933 (buffer-list))
934 ;; Also re-set the language environment in case it was
935 ;; originally done before unibyte was set and is sensitive to
936 ;; unibyte (display table, terminal coding system &c).
937 (set-language-environment current-language-environment)))
f1180544 938
752ef254 939 ;; Do this here in case the init file sets mail-host-address.
5b88a2c5 940 (if (equal user-mail-address "")
752ef254
GM
941 (setq user-mail-address (concat (user-login-name) "@"
942 (or mail-host-address
943 (system-name)))))
944
945 ;; If parameter have been changed in the init file which influence
946 ;; face realization, clear the face cache so that new faces will
947 ;; be realized.
948 (unless (and (eq scalable-fonts-allowed old-scalable-fonts-allowed)
949 (eq font-list-limit old-font-list-limit)
950 (eq face-ignored-fonts old-face-ignored-fonts))
951 (clear-face-cache)))
f1180544 952
e3bd99f5
RM
953 (run-hooks 'after-init-hook)
954
1fc67c11 955 ;; Decode all default-directory.
cea927ed
KH
956 (if (and default-enable-multibyte-characters locale-coding-system)
957 (save-excursion
958 (dolist (elt (buffer-list))
959 (set-buffer elt)
960 (if default-directory
961 (setq default-directory
962 (decode-coding-string default-directory
963 locale-coding-system t))))
964 (setq command-line-default-directory
965 (decode-coding-string command-line-default-directory
966 locale-coding-system t))))
967
a726e0d1
JB
968 ;; If *scratch* exists and init file didn't change its mode, initialize it.
969 (if (get-buffer "*scratch*")
694210c4 970 (with-current-buffer "*scratch*"
a726e0d1
JB
971 (if (eq major-mode 'fundamental-mode)
972 (funcall initial-major-mode))))
f1180544 973
a726e0d1
JB
974 ;; Load library for our terminal type.
975 ;; User init file can set term-file-prefix to nil to prevent this.
bca8c7be
MS
976 (unless (or noninteractive
977 window-system
978 (null term-file-prefix))
c7dc8ae1
SM
979 (let* ((TERM (getenv "TERM"))
980 (term TERM)
bca8c7be
MS
981 hyphend)
982 (while (and term
983 (not (load (concat term-file-prefix term) t t)))
984 ;; Strip off last hyphen and what follows, then try again
985 (setq term
c7dc8ae1 986 (if (setq hyphend (string-match "[-_][^-_]+\\'" term))
bca8c7be 987 (substring term 0 hyphend)
4f0c9ba7 988 nil)))
c7dc8ae1
SM
989 (setq term TERM)
990 ;; The terminal file has been loaded, now call the terminal specific
991 ;; initialization function.
992 (while term
993 (let ((term-init-func (intern-soft (concat "terminal-init-" term))))
994 (if (not (fboundp term-init-func))
995 ;; Strip off last hyphen and what follows, then try again
996 (setq term
997 (if (setq hyphend (string-match "[-_][^-_]+\\'" term))
998 (substring term 0 hyphend)
999 nil))
1000 (setq term nil)
4f0c9ba7 1001 (funcall term-init-func))))))
a726e0d1 1002
5777a167
RS
1003 ;; Update the out-of-memory error message based on user's key bindings
1004 ;; for save-some-buffers.
1005 (setq memory-signal-data
1006 (list 'error
1007 (substitute-command-keys "Memory exhausted--use \\[save-some-buffers] then exit and restart Emacs")))
1008
03e3c30a 1009 ;; Process the remaining args.
a726e0d1
JB
1010 (command-line-1 (cdr command-line-args))
1011
1012 ;; If -batch, terminate after processing the command options.
ca57f55d
JD
1013 (if noninteractive (kill-emacs t))
1014
1015 ;; Run emacs-session-restore (session management) if started by
1016 ;; the session manager and we have a session manager connection.
bca8c7be
MS
1017 (if (and (boundp 'x-session-previous-id)
1018 (stringp x-session-previous-id))
a99df87d
RS
1019 (with-no-warnings
1020 (emacs-session-restore x-session-previous-id))))
a726e0d1 1021
46cfd295 1022(defcustom initial-scratch-message (purecopy "\
3b79c219
GM
1023;; This buffer is for notes you don't want to save, and for Lisp evaluation.
1024;; If you want to create a file, visit that file with C-x C-f,
1025;; then enter the text in that file's own buffer.
9fe3219e 1026
46cfd295 1027")
9fe3219e
RS
1028 "Initial message displayed in *scratch* buffer at startup.
1029If this is nil, no message will be displayed."
fa071a47
RS
1030 :type '(choice (text :tag "Message")
1031 (const :tag "none" nil))
1032 :group 'initialization)
9fe3219e 1033
ce9ded5d
GM
1034\f
1035;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1036;;; Fancy splash screen
1037;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1038
1039(defvar fancy-splash-text
26ff68aa 1040 '((:face variable-pitch
926aa0ee 1041 "You can do basic editing with the menu bar and scroll bar \
926aa0ee 1042using the mouse.\n\n"
26ff68aa 1043 :face (variable-pitch :weight bold)
ce9ded5d 1044 "Important Help menu items:\n"
959f1226
TTN
1045 :face variable-pitch
1046 (lambda ()
1047 (let* ((en "TUTORIAL")
1048 (tut (or (get-language-info current-language-environment
1049 'tutorial)
1050 en))
1051 (title (with-temp-buffer
1052 (insert-file-contents
1053 (expand-file-name tut data-directory)
1054 nil 0 256)
1055 (search-forward ".")
1056 (buffer-substring (point-min) (1- (point))))))
1057 ;; If there is a specific tutorial for the current language
1058 ;; environment and it is not English, append its title.
1059 (concat
1060 "Emacs Tutorial\tLearn how to use Emacs efficiently"
1061 (if (string= en tut)
1062 ""
1063 (concat " (" title ")"))
1064 "\n")))
1065 :face variable-pitch "\
1fc02b3c 1066Emacs FAQ\tFrequently asked questions and answers
5777a167 1067Read the Emacs Manual\tView the Emacs manual using Info
1fc02b3c 1068\(Non)Warranty\tGNU Emacs comes with "
26ff68aa 1069 :face (variable-pitch :slant oblique)
ce9ded5d 1070 "ABSOLUTELY NO WARRANTY\n"
26ff68aa 1071 :face variable-pitch
d3c5bad2 1072 "\
d7618b60 1073Copying Conditions\tConditions for redistributing and changing Emacs
9ab281f0 1074Getting New Versions\tHow to obtain the latest version of Emacs
682b60ae 1075More Manuals / Ordering Manuals Buying printed manuals from the FSF\n")
d7618b60
GM
1076 (:face variable-pitch
1077 "You can do basic editing with the menu bar and scroll bar \
1078using the mouse.\n\n"
1079 :face (variable-pitch :weight bold)
1080 "Useful File menu items:\n"
1081 :face variable-pitch "\
1082Exit Emacs\t(Or type Control-x followed by Control-c)
dc58296d 1083Recover Crashed Session\tRecover files you were editing before a crash
d7618b60
GM
1084
1085
1086
3f334882 1087
d7618b60
GM
1088"
1089 ))
ce9ded5d
GM
1090 "A list of texts to show in the middle part of splash screens.
1091Each element in the list should be a list of strings or pairs
1092`:face FACE', like `fancy-splash-insert' accepts them.")
1093
1094
fb275c02 1095(defgroup fancy-splash-screen ()
a01bb1db 1096 "Fancy splash screen when Emacs starts."
fb275c02 1097 :version "21.1"
a01bb1db
GM
1098 :group 'initialization)
1099
1100
1ef0ffc6 1101(defcustom fancy-splash-delay 7
49939379 1102 "*Delay in seconds between splash screens."
a01bb1db 1103 :group 'fancy-splash-screen
ce9ded5d
GM
1104 :type 'integer)
1105
1106
1ef0ffc6 1107(defcustom fancy-splash-max-time 30
e9da51a1 1108 "*Show splash screens for at most this number of seconds.
1ef0ffc6 1109Values less than twice `fancy-splash-delay' are ignored."
e9da51a1
GM
1110 :group 'fancy-splash-screen
1111 :type 'integer)
1112
1113
8ad8561b
GM
1114(defcustom fancy-splash-image nil
1115 "*The image to show in the splash screens, or nil for defaults."
a01bb1db 1116 :group 'fancy-splash-screen
8ad8561b
GM
1117 :type '(choice (const :tag "Default" nil)
1118 (file :tag "File")))
ce9ded5d
GM
1119
1120
f645586f
GM
1121;; These are temporary storage areas for the splash screen display.
1122
1123(defvar fancy-current-text nil)
1124(defvar fancy-splash-help-echo nil)
e9da51a1 1125(defvar fancy-splash-stop-time nil)
eae91b60 1126(defvar fancy-splash-outer-buffer nil)
f645586f 1127
ce9ded5d
GM
1128(defun fancy-splash-insert (&rest args)
1129 "Insert text into the current buffer, with faces.
959f1226
TTN
1130Arguments from ARGS should be either strings, functions called
1131with no args that return a string, or pairs `:face FACE',
ce9ded5d 1132where FACE is a valid face specification, as it can be used with
a8a64bf4 1133`put-text-property'."
ce9ded5d
GM
1134 (let ((current-face nil))
1135 (while args
1136 (if (eq (car args) :face)
1137 (setq args (cdr args) current-face (car args))
959f1226
TTN
1138 (insert (propertize (let ((it (car args)))
1139 (if (functionp it)
1140 (funcall it)
1141 it))
f645586f
GM
1142 'face current-face
1143 'help-echo fancy-splash-help-echo)))
ce9ded5d
GM
1144 (setq args (cdr args)))))
1145
1146
1147(defun fancy-splash-head ()
1148 "Insert the head part of the splash screen into the current buffer."
51e8cfdd
GM
1149 (let* ((image-file (cond ((stringp fancy-splash-image)
1150 fancy-splash-image)
1151 ((and (display-color-p)
1152 (image-type-available-p 'xpm))
1153 (if (and (fboundp 'x-display-planes)
1154 (= (funcall 'x-display-planes) 8))
1155 "splash8.xpm"
1156 "splash.xpm"))
1157 (t "splash.pbm")))
1158 (img (create-image image-file))
ce9ded5d
GM
1159 (image-width (and img (car (image-size img))))
1160 (window-width (window-width (selected-window))))
1161 (when img
1162 (when (> window-width image-width)
f645586f 1163 ;; Center the image in the window.
e2c60824
KS
1164 (insert (propertize " " 'display
1165 `(space :align-to (+ center (-0.5 . ,img)))))
f645586f 1166
e7f3afa9
MB
1167 ;; Change the color of the XPM version of the splash image
1168 ;; so that it is visible with a dark frame background.
1169 (when (and (memq 'xpm img)
1170 (eq (frame-parameter nil 'background-mode) 'dark))
1171 (setq img (append img '(:color-symbols (("#000000" . "gray30"))))))
1172
f645586f
GM
1173 ;; Insert the image with a help-echo and a keymap.
1174 (let ((map (make-sparse-keymap))
a622451f 1175 (help-echo "mouse-2: browse http://www.gnu.org/"))
f645586f
GM
1176 (define-key map [mouse-2]
1177 (lambda ()
1178 (interactive)
a622451f 1179 (browse-url "http://www.gnu.org/")
f645586f
GM
1180 (throw 'exit nil)))
1181 (define-key map [down-mouse-2] 'ignore)
1182 (define-key map [up-mouse-2] 'ignore)
1183 (insert-image img (propertize "xxx" 'help-echo help-echo
1184 'keymap map)))
ce9ded5d 1185 (insert "\n"))))
9d5cf87c
RS
1186 (fancy-splash-insert
1187 :face '(variable-pitch :foreground "red")
1188 (if (eq system-type 'gnu/linux)
1189 "GNU Emacs is one component of the GNU/Linux operating system."
b831c087 1190 "GNU Emacs is one component of the GNU operating system."))
eae91b60
RS
1191 (insert "\n")
1192 (unless (equal (buffer-name fancy-splash-outer-buffer) "*scratch*")
1193 (fancy-splash-insert :face 'variable-pitch
1194 (substitute-command-keys
1195 "Type \\[recenter] to begin editing your file.\n"))))
ce9ded5d
GM
1196
1197
1198(defun fancy-splash-tail ()
1199 "Insert the tail part of the splash screen into the current buffer."
95fadcca
GM
1200 (let ((fg (if (eq (frame-parameter nil 'background-mode) 'dark)
1201 "cyan" "darkblue")))
1202 (fancy-splash-insert :face `(variable-pitch :foreground ,fg)
1203 "\nThis is "
1204 (emacs-version)
1205 "\n"
1206 :face '(variable-pitch :height 0.5)
dc58296d 1207 "Copyright (C) 2005 Free Software Foundation, Inc.")
ed638cc9
RS
1208 (and auto-save-list-file-prefix
1209 ;; Don't signal an error if the
1210 ;; directory for auto-save-list files
1211 ;; does not yet exist.
1212 (file-directory-p (file-name-directory
1213 auto-save-list-file-prefix))
1214 (directory-files
1215 (file-name-directory auto-save-list-file-prefix)
1216 nil
1217 (concat "\\`"
1218 (regexp-quote (file-name-nondirectory
1219 auto-save-list-file-prefix)))
1220 t)
1221 (fancy-splash-insert :face '(variable-pitch :foreground "red")
1222 "\n\nIf an Emacs session crashed recently, "
1223 "type M-x recover-session RET\nto recover"
1224 " the files you were editing."))))
ce9ded5d 1225
f645586f
GM
1226(defun fancy-splash-screens-1 (buffer)
1227 "Timer function displaying a splash screen."
e9da51a1
GM
1228 (when (> (float-time) fancy-splash-stop-time)
1229 (throw 'stop-splashing nil))
f645586f
GM
1230 (unless fancy-current-text
1231 (setq fancy-current-text fancy-splash-text))
1232 (let ((text (car fancy-current-text)))
1233 (set-buffer buffer)
1234 (erase-buffer)
b693e375
RS
1235 (if pure-space-overflow
1236 (insert "Warning Warning Pure space overflow Warning Warning\n"))
f645586f
GM
1237 (fancy-splash-head)
1238 (apply #'fancy-splash-insert text)
1239 (fancy-splash-tail)
1240 (unless (current-message)
1241 (message fancy-splash-help-echo))
1242 (set-buffer-modified-p nil)
dbeb499b 1243 (goto-char (point-min))
f645586f
GM
1244 (force-mode-line-update)
1245 (setq fancy-current-text (cdr fancy-current-text))))
1246
1247
1248(defun fancy-splash-default-action ()
732950b1
JB
1249 "Stop displaying the splash screen buffer.
1250This is an internal function used to turn off the splash screen after
1251the user caused an input event by hitting a key or clicking with the
1252mouse."
f645586f
GM
1253 (interactive)
1254 (push last-command-event unread-command-events)
1255 (throw 'exit nil))
1256
1257
ce9ded5d 1258(defun fancy-splash-screens ()
f645586f 1259 "Display fancy splash screens when Emacs starts."
5b61c6a7 1260 (setq fancy-splash-help-echo (startup-echo-area-message))
848c7757 1261 (let ((old-hourglass display-hourglass)
eae91b60
RS
1262 (fancy-splash-outer-buffer (current-buffer))
1263 splash-buffer
ff4ec1f7 1264 (old-minor-mode-map-alist minor-mode-map-alist)
6b20fb8e 1265 (frame (fancy-splash-frame))
5b61c6a7 1266 timer)
6b20fb8e
RS
1267 (save-selected-window
1268 (select-frame frame)
1269 (switch-to-buffer "GNU Emacs")
1270 (setq tab-width 20)
1271 (setq splash-buffer (current-buffer))
1272 (catch 'stop-splashing
1273 (unwind-protect
1274 (let ((map (make-sparse-keymap)))
1275 (use-local-map map)
1276 (define-key map [switch-frame] 'ignore)
1277 (define-key map [t] 'fancy-splash-default-action)
1278 (define-key map [mouse-movement] 'ignore)
1279 (define-key map [mode-line t] 'ignore)
1280 (setq cursor-type nil
1281 display-hourglass nil
1282 minor-mode-map-alist nil
1283 buffer-undo-list t
f1180544 1284 mode-line-format (propertize "---- %b %-"
6b20fb8e
RS
1285 'face '(:weight bold))
1286 fancy-splash-stop-time (+ (float-time)
1ef0ffc6 1287 fancy-splash-max-time)
6b20fb8e
RS
1288 timer (run-with-timer 0 fancy-splash-delay
1289 #'fancy-splash-screens-1
1290 splash-buffer))
1291 (recursive-edit))
e9da51a1 1292 (cancel-timer timer)
ff4ec1f7
GM
1293 (setq display-hourglass old-hourglass
1294 minor-mode-map-alist old-minor-mode-map-alist)
6b20fb8e
RS
1295 (kill-buffer splash-buffer))))))
1296
1297(defun fancy-splash-frame ()
1298 "Return the frame to use for the fancy splash screen.
1299Returning non-nil does not mean we should necessarily
1300use the fancy splash screen, but if we do use it,
1301we put it on this frame."
1302 (let (chosen-frame)
3a321ddb 1303 (dolist (frame (append (frame-list) (list (selected-frame))))
6b20fb8e
RS
1304 (if (and (frame-visible-p frame)
1305 (not (window-minibuffer-p (frame-selected-window frame))))
1306 (setq chosen-frame frame)))
1307 chosen-frame))
f645586f 1308
285991dc
GM
1309(defun use-fancy-splash-screens-p ()
1310 "Return t if fancy splash screens should be used."
9df076f2
GM
1311 (when (and (display-graphic-p)
1312 (or (and (display-color-p)
285991dc 1313 (image-type-available-p 'xpm))
9df076f2 1314 (image-type-available-p 'pbm)))
16d2fae9
JPW
1315 (let ((frame (fancy-splash-frame)))
1316 (when frame
1317 (let* ((img (create-image (or fancy-splash-image
1318 (if (and (display-color-p)
1319 (image-type-available-p 'xpm))
1320 "splash.xpm" "splash.pbm"))))
1321 (image-height (and img (cdr (image-size img))))
1322 (window-height (1- (window-height (frame-selected-window frame)))))
1323 (> window-height (+ image-height 19)))))))
285991dc
GM
1324
1325
c61453ea
PJ
1326(defun normal-splash-screen ()
1327 "Display splash screen when Emacs starts."
82e736c1
JPW
1328 (let ((prev-buffer (current-buffer)))
1329 (unwind-protect
1330 (with-current-buffer (get-buffer-create "GNU Emacs")
1331 (let ((tab-width 8)
f1180544 1332 (mode-line-format (propertize "---- %b %-"
82e736c1
JPW
1333 'face '(:weight bold))))
1334
b693e375
RS
1335 (if pure-space-overflow
1336 (insert "Warning Warning Pure space overflow Warning Warning\n"))
1337
82e736c1
JPW
1338 ;; The convention for this piece of code is that
1339 ;; each piece of output starts with one or two newlines
1340 ;; and does not end with any newlines.
1341 (insert "Welcome to GNU Emacs")
9d5cf87c
RS
1342 (insert
1343 (if (eq system-type 'gnu/linux)
1344 ", one component of the GNU/Linux operating system.\n"
1345 ", a part of the GNU operating system.\n"))
82e736c1
JPW
1346
1347 (unless (equal (buffer-name prev-buffer) "*scratch*")
1348 (insert (substitute-command-keys
1349 "\nType \\[recenter] to begin editing your file.\n")))
1350
1351 (if (display-mouse-p)
1352 ;; The user can use the mouse to activate menus
1353 ;; so give help in terms of menu items.
1354 (progn
1355 (insert "\
c61453ea
PJ
1356You can do basic editing with the menu bar and scroll bar using the mouse.
1357
1358Useful File menu items:
1359Exit Emacs (or type Control-x followed by Control-c)
93bb512f 1360Recover Crashed Session Recover files you were editing before a crash
c61453ea
PJ
1361
1362Important Help menu items:
9ab281f0 1363Emacs Tutorial Learn how to use Emacs efficiently
c61453ea 1364Emacs FAQ Frequently asked questions and answers
5777a167 1365Read the Emacs Manual View the Emacs manual using Info
c61453ea 1366\(Non)Warranty GNU Emacs comes with ABSOLUTELY NO WARRANTY
9ab281f0
JB
1367Copying Conditions Conditions for redistributing and changing Emacs
1368Getting New Versions How to obtain the latest version of Emacs
1369More Manuals / Ordering Manuals How to order printed manuals from the FSF
c61453ea 1370")
82e736c1
JPW
1371 (insert "\n\n" (emacs-version)
1372 "
9ab281f0 1373Copyright (C) 2005 Free Software Foundation, Inc."))
c61453ea 1374
82e736c1
JPW
1375 ;; No mouse menus, so give help using kbd commands.
1376
1377 ;; If keys have their default meanings,
1378 ;; use precomputed string to save lots of time.
1379 (if (and (eq (key-binding "\C-h") 'help-command)
1380 (eq (key-binding "\C-xu") 'advertised-undo)
1381 (eq (key-binding "\C-x\C-c") 'save-buffers-kill-emacs)
1382 (eq (key-binding "\C-ht") 'help-with-tutorial)
1383 (eq (key-binding "\C-hi") 'info)
1384 (eq (key-binding "\C-hr") 'info-emacs-manual)
1385 (eq (key-binding "\C-h\C-n") 'view-emacs-news))
1386 (insert "
c61453ea 1387Get help C-h (Hold down CTRL and press h)
5777a167
RS
1388Emacs manual C-h r
1389Emacs tutorial C-h t Undo changes C-x u
1390Buy manuals C-h C-m Exit Emacs C-x C-c
1391Browse manuals C-h i")
1392
82e736c1
JPW
1393 (insert (substitute-command-keys
1394 (format "\n
c61453ea 1395Get help %s
5777a167 1396Emacs manual \\[info-emacs-manual]
82e736c1
JPW
1397Emacs tutorial \\[help-with-tutorial]\tUndo changes\t\\[advertised-undo]
1398Buy manuals \\[view-order-manuals]\tExit Emacs\t\\[save-buffers-kill-emacs]
5777a167 1399Browse manuals \\[info]"
82e736c1
JPW
1400 (let ((where (where-is-internal
1401 'help-command nil t)))
1402 (if where
1403 (key-description where)
1404 "M-x help"))))))
1405
1406 ;; Say how to use the menu bar with the keyboard.
1407 (if (and (eq (key-binding "\M-`") 'tmm-menubar)
1408 (eq (key-binding [f10]) 'tmm-menubar))
1409 (insert "
c61453ea 1410Activate menubar F10 or ESC ` or M-`")
82e736c1 1411 (insert (substitute-command-keys "
c61453ea
PJ
1412Activate menubar \\[tmm-menubar]")))
1413
82e736c1
JPW
1414 ;; Many users seem to have problems with these.
1415 (insert "
c61453ea
PJ
1416\(`C-' means use the CTRL key. `M-' means use the Meta (or Alt) key.
1417If you have no Meta key, you may instead type ESC followed by the character.)")
1418
82e736c1
JPW
1419 (insert "\n\n" (emacs-version)
1420 "
9ab281f0 1421Copyright (C) 2005 Free Software Foundation, Inc.")
c61453ea 1422
82e736c1
JPW
1423 (if (and (eq (key-binding "\C-h\C-c") 'describe-copying)
1424 (eq (key-binding "\C-h\C-d") 'describe-distribution)
1425 (eq (key-binding "\C-h\C-w") 'describe-no-warranty))
f1180544 1426 (insert
82e736c1 1427 "\n
c61453ea
PJ
1428GNU Emacs comes with ABSOLUTELY NO WARRANTY; type C-h C-w for full details.
1429Emacs is Free Software--Free as in Freedom--so you can redistribute copies
1430of Emacs and modify it; type C-h C-c to see the conditions.
1431Type C-h C-d for information on getting the latest version.")
82e736c1
JPW
1432 (insert (substitute-command-keys
1433 "\n
c61453ea
PJ
1434GNU Emacs comes with ABSOLUTELY NO WARRANTY; type \\[describe-no-warranty] for full details.
1435Emacs is Free Software--Free as in Freedom--so you can redistribute copies
1436of Emacs and modify it; type \\[describe-copying] to see the conditions.
1437Type \\[describe-distribution] for information on getting the latest version."))))
1438
82e736c1
JPW
1439 ;; The rest of the startup screen is the same on all
1440 ;; kinds of terminals.
1441
1442 ;; Give information on recovering, if there was a crash.
1443 (and auto-save-list-file-prefix
1444 ;; Don't signal an error if the
1445 ;; directory for auto-save-list files
1446 ;; does not yet exist.
1447 (file-directory-p (file-name-directory
1448 auto-save-list-file-prefix))
1449 (directory-files
1450 (file-name-directory auto-save-list-file-prefix)
1451 nil
1452 (concat "\\`"
1453 (regexp-quote (file-name-nondirectory
1454 auto-save-list-file-prefix)))
1455 t)
1456 (insert "\n\nIf an Emacs session crashed recently, "
1457 "type M-x recover-session RET\nto recover"
1458 " the files you were editing."))
1459
1460 ;; Display the input that we set up in the buffer.
1461 (set-buffer-modified-p nil)
1462 (goto-char (point-min))
1463 (save-window-excursion
1464 (switch-to-buffer (current-buffer))
1465 (sit-for 120))))
1466 ;; Unwind ... ensure splash buffer is killed
1467 (kill-buffer "GNU Emacs"))))
1468
c61453ea 1469
f645586f
GM
1470(defun startup-echo-area-message ()
1471 (if (eq (key-binding "\C-h\C-p") 'describe-project)
1472 "For information about the GNU Project and its goals, type C-h C-p."
1473 (substitute-command-keys
1474 "For information about the GNU Project and its goals, type \
1475\\[describe-project].")))
ce9ded5d
GM
1476
1477
49939379 1478(defun display-startup-echo-area-message ()
15fa6db0 1479 (let ((resize-mini-windows t))
8a26c165 1480 (message "%s" (startup-echo-area-message))))
f645586f 1481
49939379 1482
c61453ea
PJ
1483(defun display-splash-screen ()
1484 "Display splash screen according to display.
1485Fancy splash screens are used on graphic displays,
1486normal otherwise."
1487 (interactive)
9df076f2 1488 (if (use-fancy-splash-screens-p)
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1489 (fancy-splash-screens)
1490 (normal-splash-screen)))
1491
1492
a726e0d1 1493(defun command-line-1 (command-line-args-left)
52320897 1494 (or noninteractive (input-pending-p) init-file-had-error
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1495 ;; t if the init file says to inhibit the echo area startup message.
1496 (and inhibit-startup-echo-area-message
1497 user-init-file
1498 (or (and (get 'inhibit-startup-echo-area-message 'saved-value)
1499 (equal inhibit-startup-echo-area-message
bca8c7be 1500 (if (equal init-file-user "")
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1501 (user-login-name)
1502 init-file-user)))
1503 ;; Wasn't set with custom; see if .emacs has a setq.
1504 (let ((buffer (get-buffer-create " *temp*")))
1505 (prog1
1506 (condition-case nil
1507 (save-excursion
1508 (set-buffer buffer)
1509 (insert-file-contents user-init-file)
1510 (re-search-forward
1511 (concat
1512 "([ \t\n]*setq[ \t\n]+"
1513 "inhibit-startup-echo-area-message[ \t\n]+"
1514 (regexp-quote
1515 (prin1-to-string
bca8c7be 1516 (if (equal init-file-user "")
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1517 (user-login-name)
1518 init-file-user)))
1519 "[ \t\n]*)")
1520 nil t))
1521 (error nil))
1522 (kill-buffer buffer)))))
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GM
1523 ;; display-splash-screen at the end of command-line-1 calls
1524 ;; use-fancy-splash-screens-p. This can cause image.el to be
1525 ;; loaded, putting "Loading image... done" in the echo area.
1526 ;; This hides startup-echo-area-message. So
1527 ;; use-fancy-splash-screens-p is called here simply to get the
1528 ;; loading of image.el (if needed) out of the way before
1529 ;; display-startup-echo-area-message runs.
79f9f704 1530 (progn
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1531 (use-fancy-splash-screens-p)
1532 (display-startup-echo-area-message)))
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1533
1534 ;; Delay 2 seconds after an init file error message
1535 ;; was displayed, so user can read it.
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1536 (when init-file-had-error
1537 (sit-for 2))
1538
1539 (when command-line-args-left
1540 ;; We have command args; process them.
1541 (let ((dir command-line-default-directory)
1542 (file-count 0)
1543 first-file-buffer
1544 tem
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1545 ;; This approach loses for "-batch -L DIR --eval "(require foo)",
1546 ;; if foo is intended to be found in DIR.
1547 ;;
1548 ;; ;; The directories listed in --directory/-L options will *appear*
1549 ;; ;; at the front of `load-path' in the order they appear on the
1550 ;; ;; command-line. We cannot do this by *placing* them at the front
1551 ;; ;; in the order they appear, so we need this variable to hold them,
1552 ;; ;; temporarily.
1553 ;; extra-load-path
1554 ;;
1555 ;; To DTRT we keep track of the splice point and modify `load-path'
1556 ;; straight away upon any --directory/-L option.
1557 splice
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1558 just-files ;; t if this follows the magic -- option.
1559 ;; This includes our standard options' long versions
1560 ;; and long versions of what's on command-switch-alist.
1561 (longopts
1562 (append '(("--funcall") ("--load") ("--insert") ("--kill")
1563 ("--directory") ("--eval") ("--execute") ("--no-splash")
1564 ("--find-file") ("--visit") ("--file"))
1565 (mapcar (lambda (elt)
1566 (list (concat "-" (car elt))))
1567 command-switch-alist)))
1568 (line 0)
1569 (column 0))
1570
1571 ;; Add the long X options to longopts.
1572 (dolist (tem command-line-x-option-alist)
1573 (if (string-match "^--" (car tem))
1574 (push (list (car tem)) longopts)))
1575
1576 ;; Loop, processing options.
1577 (while command-line-args-left
1578 (let* ((argi (car command-line-args-left))
1579 (orig-argi argi)
1580 argval completion)
1581 (setq command-line-args-left (cdr command-line-args-left))
1582
1583 ;; Do preliminary decoding of the option.
1584 (if just-files
1585 ;; After --, don't look for options; treat all args as files.
1586 (setq argi "")
1587 ;; Convert long options to ordinary options
1588 ;; and separate out an attached option argument into argval.
1589 (when (string-match "^\\(--[^=]*\\)=" argi)
1590 (setq argval (substring argi (match-end 0))
1591 argi (match-string 1 argi)))
1592 (if (equal argi "--")
1593 (setq completion nil)
1594 (setq completion (try-completion argi longopts)))
1595 (if (eq completion t)
1596 (setq argi (substring argi 1))
1597 (if (stringp completion)
1598 (let ((elt (assoc completion longopts)))
1599 (or elt
1600 (error "Option `%s' is ambiguous" argi))
1601 (setq argi (substring (car elt) 1)))
1602 (setq argval nil
1603 argi orig-argi))))
1604
1605 ;; Execute the option.
1606 (cond ((setq tem (assoc argi command-switch-alist))
1607 (if argval
1608 (let ((command-line-args-left
1609 (cons argval command-line-args-left)))
1610 (funcall (cdr tem) argi))
1611 (funcall (cdr tem) argi)))
1612
1613 ((equal argi "-no-splash")
1614 (setq inhibit-startup-message t))
1615
1616 ((member argi '("-f" ; what the manual claims
1617 "-funcall"
1618 "-e")) ; what the source used to say
1619 (setq tem (intern (or argval (pop command-line-args-left))))
f39864ec 1620 (if (commandp tem)
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MS
1621 (command-execute tem)
1622 (funcall tem)))
1623
1624 ((member argi '("-eval" "-execute"))
1625 (eval (read (or argval (pop command-line-args-left)))))
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1626
1627 ((member argi '("-L" "-directory"))
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1628 (setq tem (expand-file-name
1629 (command-line-normalize-file-name
1630 (or argval (pop command-line-args-left)))))
1631 (cond (splice (setcdr splice (cons tem (cdr splice)))
1632 (setq splice (cdr splice)))
1633 (t (setq load-path (cons tem load-path)
1634 splice load-path))))
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1635
1636 ((member argi '("-l" "-load"))
1637 (let* ((file (command-line-normalize-file-name
1638 (or argval (pop command-line-args-left))))
1639 ;; Take file from default dir if it exists there;
1640 ;; otherwise let `load' search for it.
1641 (file-ex (expand-file-name file)))
1642 (when (file-exists-p file-ex)
1643 (setq file file-ex))
1644 (load file nil t)))
1645
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1646 ;; This is used to handle -script. It's not clear
1647 ;; we need to document it.
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RS
1648 ((member argi '("-scriptload"))
1649 (let* ((file (command-line-normalize-file-name
1650 (or argval (pop command-line-args-left))))
1651 ;; Take file from default dir.
1652 (file-ex (expand-file-name file)))
1653 (load file-ex nil t t)))
1654
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1655 ((equal argi "-insert")
1656 (setq tem (or argval (pop command-line-args-left)))
1657 (or (stringp tem)
1658 (error "File name omitted from `-insert' option"))
1659 (insert-file-contents (command-line-normalize-file-name tem)))
1660
1661 ((equal argi "-kill")
1662 (kill-emacs t))
1663
1664 ((string-match "^\\+[0-9]+\\'" argi)
027a4b6b 1665 (setq line (string-to-number argi)))
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1666
1667 ((string-match "^\\+\\([0-9]+\\):\\([0-9]+\\)\\'" argi)
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JB
1668 (setq line (string-to-number (match-string 1 argi))
1669 column (string-to-number (match-string 2 argi))))
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1670
1671 ((setq tem (assoc argi command-line-x-option-alist))
1672 ;; Ignore X-windows options and their args if not using X.
1673 (setq command-line-args-left
1674 (nthcdr (nth 1 tem) command-line-args-left)))
1675
1676 ((member argi '("-find-file" "-file" "-visit"))
1677 ;; An explicit option to specify visiting a file.
1678 (setq tem (or argval (pop command-line-args-left)))
1679 (unless (stringp tem)
1680 (error "File name omitted from `%s' option" argi))
1681 (setq file-count (1+ file-count))
1682 (let ((file (expand-file-name
1683 (command-line-normalize-file-name tem) dir)))
1684 (if (= file-count 1)
1685 (setq first-file-buffer (find-file file))
1686 (find-file-other-window file)))
1687 (or (zerop line)
1688 (goto-line line))
1689 (setq line 0)
1690 (unless (< column 1)
1691 (move-to-column (1- column)))
1692 (setq column 0))
1693
1694 ((equal argi "--")
1695 (setq just-files t))
1696 (t
1697 ;; We have almost exhausted our options. See if the
1698 ;; user has made any other command-line options available
1699 (let ((hooks command-line-functions) ;; lrs 7/31/89
1700 (did-hook nil))
1701 (while (and hooks
1702 (not (setq did-hook (funcall (car hooks)))))
1703 (setq hooks (cdr hooks)))
1704 (if (not did-hook)
1705 ;; Presume that the argument is a file name.
1706 (progn
1707 (if (string-match "\\`-" argi)
1708 (error "Unknown option `%s'" argi))
1709 (setq file-count (1+ file-count))
1710 (let ((file
1711 (expand-file-name
1712 (command-line-normalize-file-name orig-argi)
1713 dir)))
1714 (if (= file-count 1)
1715 (setq first-file-buffer (find-file file))
1716 (find-file-other-window file)))
1717 (or (zerop line)
1718 (goto-line line))
1719 (setq line 0)
1720 (unless (< column 1)
1721 (move-to-column (1- column)))
1722 (setq column 0))))))))
1723
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1724 ;; If 3 or more files visited, and not all visible,
1725 ;; show user what they all are. But leave the last one current.
1726 (and (> file-count 2)
1727 (not noninteractive)
1728 (not inhibit-startup-buffer-menu)
1729 (or (get-buffer-window first-file-buffer)
1730 (list-buffers)))))
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1731
1732 ;; Maybe display a startup screen.
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1733 (unless (or inhibit-startup-message
1734 noninteractive
3c24b4e4 1735 emacs-quick-startup)
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1736 ;; Display a startup screen, after some preparations.
1737
1738 ;; If there are no switches to process, we might as well
1739 ;; run this hook now, and there may be some need to do it
1740 ;; before doing any output.
deebb0e9 1741 (run-hooks 'emacs-startup-hook)
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1742 (and term-setup-hook
1743 (run-hooks 'term-setup-hook))
deebb0e9 1744 (setq inhibit-startup-hooks t)
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1745
1746 ;; It's important to notice the user settings before we
1747 ;; display the startup message; otherwise, the settings
1748 ;; won't take effect until the user gives the first
1749 ;; keystroke, and that's distracting.
1750 (when (fboundp 'frame-notice-user-settings)
1751 (frame-notice-user-settings))
1752
1753 ;; If there are no switches to process, we might as well
1754 ;; run this hook now, and there may be some need to do it
1755 ;; before doing any output.
1756 (when window-setup-hook
1757 (run-hooks 'window-setup-hook)
1758 ;; Don't let the hook be run twice.
1759 (setq window-setup-hook nil))
1760
1761 ;; Do this now to avoid an annoying delay if the user
1762 ;; clicks the menu bar during the sit-for.
1763 (when (display-popup-menus-p)
1764 (precompute-menubar-bindings))
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RS
1765 (with-no-warnings
1766 (setq menubar-bindings-done t))
ed638cc9 1767
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1768 ;; If *scratch* is selected and it is empty, insert an
1769 ;; initial message saying not to create a file there.
1770 (when (and initial-scratch-message
bca8c7be 1771 (equal (buffer-name) "*scratch*")
ed638cc9 1772 (= 0 (buffer-size)))
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1773 (insert initial-scratch-message)
1774 (set-buffer-modified-p nil))
ed638cc9 1775
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1776 ;; If user typed input during all that work,
1777 ;; abort the startup screen. Otherwise, display it now.
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1778 (unless (input-pending-p)
1779 (display-splash-screen))))
c88ab9ce 1780
49939379 1781
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1782(defun command-line-normalize-file-name (file)
1783 "Collapse multiple slashes to one, to handle non-Emacs file names."
6b9e794f
RS
1784 (save-match-data
1785 ;; Use arg 1 so that we don't collapse // at the start of the file name.
1786 ;; That is significant on some systems.
1787 ;; However, /// at the beginning is supposed to mean just /, not //.
1788 (if (string-match "^///+" file)
1789 (setq file (replace-match "/" t t file)))
1790 (while (string-match "//+" file 1)
1791 (setq file (replace-match "/" t t file)))
1792 file))
47c7adae 1793
a3194d03 1794;; arch-tag: 7e294698-244d-4758-984b-4047f887a5db
c88ab9ce 1795;;; startup.el ends here