startup.el 31.5 KB
Newer Older
Eric S. Raymond's avatar
Eric S. Raymond committed
1 2
;;; startup.el --- process Emacs shell arguments

3
;; Copyright (C) 1985, 1986, 1992, 1994, 1995 Free Software Foundation, Inc.
Eric S. Raymond's avatar
Eric S. Raymond committed
4

Eric S. Raymond's avatar
Eric S. Raymond committed
5
;; Maintainer: FSF
Eric S. Raymond's avatar
Eric S. Raymond committed
6
;; Keywords: internal
Eric S. Raymond's avatar
Eric S. Raymond committed
7

Jim Blandy's avatar
Jim Blandy committed
8 9 10 11
;; This file is part of GNU Emacs.

;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
Jim Blandy's avatar
Jim Blandy committed
12
;; the Free Software Foundation; either version 2, or (at your option)
Jim Blandy's avatar
Jim Blandy committed
13 14 15 16 17 18 19 20 21 22 23
;; any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING.  If not, write to
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.

Eric S. Raymond's avatar
Eric S. Raymond committed
24
;;; Commentary:
Jim Blandy's avatar
Jim Blandy committed
25

Richard M. Stallman's avatar
Richard M. Stallman committed
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65
;; This file parses the command line and gets Emacs running.  Options on
;; the command line are handled in precedence order.  The order is the
;; one in the list below; first described means first handled.  Options
;; within each category (delimited by a bar) are handled in the order
;; encountered on the command line.

;; -------------------------
;; -version                  Print Emacs version to stderr, then exit
;; --version                 successfully right away.
;;                           This option is handled by emacs.c
;; -------------------------
;; -help                     Print a short usage description and exit
;; --help                    successfully right away.
;;                           This option is handled by emacs.c
;; -------------------------
;; -nl                       Do not use shared memory (for systems that
;; -no-shared-memory         support this) for the dumped Emacs data.
;;                           This option is handled by emacs.c
;;
;; -map                      For VMS.
;; --map-data                This option is handled by emacs.c
;; -------------------------
;; -t FILE                   Use FILE as the name of the terminal.
;; --terminal FILE           Using this implies "-nw" also.
;;                           This option is handled by emacs.c
;; -------------------------
;; -d DISPNAME               Use DISPNAME as the name of the X-windows
;; -display DISPNAME         display for the initial frame.
;; --display DISPNAME        This option is handled by emacs.c
;; -------------------------
;; -nw                       Do not use a windows system (but use the
;; --no-windows              terminal instead.)
;;                           This option is handled by emacs.c
;; -------------------------
;; -batch                    Execute noninteractively (messages go to stdout,
;; --batch                   variable noninteractive set to t)
;;                           This option is handled by emacs.c
;; -------------------------
;; -q                        Do not load user's init file and do not load
;; -no-init-file             "default.el".  Regardless of this switch,
66
;; --no-init-file            "site-start" is still loaded.
Richard M. Stallman's avatar
Richard M. Stallman committed
67
;; -------------------------
68
;; -no-site-file             Do not load "site-start.el".  (This is the ONLY
Richard M. Stallman's avatar
Richard M. Stallman committed
69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103
;; --no-site-file            way to prevent loading that file.)
;; -------------------------
;; -u USER                   Load USER's init file instead of the init
;; -user USER                file belonging to the user starting Emacs.
;; --user USER
;; -------------------------
;; -debug-init               Don't catch errors in init files; let the
;; --debug-init              debugger run.
;; -------------------------
;; -i ICONTYPE               Set type of icon using when Emacs is
;; -itype ICONTYPE           iconified under X-windows.
;; --icon-type ICONTYPE      This option is passed on to term/x-win.el
;;
;; -iconic                   Start Emacs iconified under X-windows.
;; --iconic                  This option is passed on to term/x-win.el
;; -------------------------
;; Various X-windows options for colors/fonts/geometry/title etc.
;; These options are passed on to term/x-win.el which see.  Certain
;; of these are also found in term/pc-win.el
;; -------------------------
;; FILE                      Visit FILE.
;;
;; -L DIRNAME                Add DIRNAME to load-path
;; -directory DIRNAME
;; --directory DIRNAME
;;
;; -l FILE                   Load and execute the Emacs lisp code
;; -load FILE                in FILE.
;; --load FILE
;;
;; -f FUNC                   Execute Emacs lisp function FUNC with
;; -funcall FUNC             no arguments.  The "-e" form is outdated
;; --funcall FUNC            and should not be used.  (It's a typo
;; -e FUNC                   promoted to a feature.)
;;
104 105
;; -eval FORM                Execute Emacs lisp form FORM.
;; --eval FORM
106
;;
Richard M. Stallman's avatar
Richard M. Stallman committed
107 108 109 110 111 112
;; -insert FILE              Insert the contents of FILE into buffer.
;; --insert FILE
;; -------------------------
;; -kill                     Kill (exit) Emacs right away.
;; --kill
;; -------------------------
Jim Blandy's avatar
Jim Blandy committed
113

Eric S. Raymond's avatar
Eric S. Raymond committed
114 115
;;; Code:

Jim Blandy's avatar
Jim Blandy committed
116 117 118 119 120
(setq top-level '(normal-top-level))

(defvar command-line-processed nil "t once command line has been processed")

(defconst inhibit-startup-message nil
121
  "*Non-nil inhibits the initial startup message.
Jim Blandy's avatar
Jim Blandy committed
122 123 124
This is for use in your personal init file, once you are familiar
with the contents of the startup message.")

125 126 127
(defconst inhibit-startup-echo-area-message nil
  "*Non-nil inhibits the initial startup echo area message.
Inhibition takes effect only if your `.emacs' file contains
128
a line of this form:
129
 (setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\")
130 131
If your `.emacs' file is byte-compiled, use the following form instead:
 (eval '(setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\"))
132 133 134
Thus, someone else using a copy of your `.emacs' file will see
the startup message unless he personally acts to inhibit it.")

Jim Blandy's avatar
Jim Blandy committed
135 136 137 138 139 140 141 142 143
(defconst inhibit-default-init nil
  "*Non-nil inhibits loading the `default' library.")

(defconst command-switch-alist nil
  "Alist of command-line switches.
Elements look like (SWITCH-STRING . HANDLER-FUNCTION).
HANDLER-FUNCTION receives switch name as sole arg;
remaining command-line args are in the variable `command-line-args-left'.")

144 145 146
(defvar command-line-args-left nil
  "List of command-line args not yet processed.")

Jim Blandy's avatar
Jim Blandy committed
147 148 149
(defvar command-line-functions nil    ;; lrs 7/31/89
  "List of functions to process unrecognized command-line arguments.
Each function should access the dynamically bound variables
Richard M. Stallman's avatar
Richard M. Stallman committed
150
`argi' (the current argument) and `command-line-args-left' (the remaining
Jim Blandy's avatar
Jim Blandy committed
151
arguments).  The function should return non-nil only if it recognizes and
Richard M. Stallman's avatar
Richard M. Stallman committed
152 153
processes `argi'.  If it does so, it may consume successive arguments by
altering `command-line-args-left' to remove them.")
Jim Blandy's avatar
Jim Blandy committed
154

155 156 157 158
(defvar command-line-default-directory nil
  "Default directory to use for command line arguments.
This is normally copied from `default-directory' when Emacs starts.")

Roland McGrath's avatar
Roland McGrath committed
159
(defvar before-init-hook nil
Richard M. Stallman's avatar
Richard M. Stallman committed
160
  "Functions to call after handling urgent options but before init files.
Jim Blandy's avatar
Jim Blandy committed
161
The frame system uses this to open frames to display messages while
Jim Blandy's avatar
Jim Blandy committed
162 163
Emacs loads the user's initialization file.")

Roland McGrath's avatar
Roland McGrath committed
164
(defvar after-init-hook nil
Richard M. Stallman's avatar
Richard M. Stallman committed
165
  "Functions to call after loading the init file (`~/.emacs').
Roland McGrath's avatar
Roland McGrath committed
166
The call is not protected by a condition-case, so you can set `debug-on-error'
Richard M. Stallman's avatar
Richard M. Stallman committed
167
in `.emacs', and put all the actual code on `after-init-hook'.")
Roland McGrath's avatar
Roland McGrath committed
168

Jim Blandy's avatar
Jim Blandy committed
169
(defvar term-setup-hook nil
Richard M. Stallman's avatar
Richard M. Stallman committed
170
  "Functions to be called after loading terminal-specific Lisp code.
Roland McGrath's avatar
Roland McGrath committed
171
See `run-hooks'.  This variable exists for users to set,
Jim Blandy's avatar
Jim Blandy committed
172 173 174 175
so as to override the definitions made by the terminal-specific file.
Emacs never sets this variable itself.")

(defvar keyboard-type nil
Richard M. Stallman's avatar
Richard M. Stallman committed
176 177
  "The brand of keyboard you are using.
This variable is used to define
Jim Blandy's avatar
Jim Blandy committed
178 179 180 181
the proper function and keypad keys for use under X.  It is used in a
fashion analogous to the environment value TERM.")

(defvar window-setup-hook nil
Richard M. Stallman's avatar
Richard M. Stallman committed
182 183 184
  "Normal hook run to initialize window system display.
Emacs runs this hook after processing the command line arguments and loading
the user's init file.")
Jim Blandy's avatar
Jim Blandy committed
185 186 187 188 189 190

(defconst initial-major-mode 'lisp-interaction-mode
  "Major mode command symbol to use for the initial *scratch* buffer.")

(defvar init-file-user nil
  "Identity of user whose `.emacs' file is or was read.
Karl Heuer's avatar
Karl Heuer committed
191 192 193
The value is nil if no init file is being used; otherwise, it may be either
the null string, meaning that the init file was taken from the user that
originally logged in, or it may be a string containing a user's name.
Jim Blandy's avatar
Jim Blandy committed
194

Karl Heuer's avatar
Karl Heuer committed
195 196
In either of the latter cases, `(concat \"~\" init-file-user \"/\")'
evaluates to the name of the directory where the `.emacs' file was
197 198 199 200
looked for.

Setting `init-file-user' does not prevent Emacs from loading
`site-start.el'.  The only way to do that is to use `--no-site-file'.")
Jim Blandy's avatar
Jim Blandy committed
201

202 203 204 205 206 207
(defvar site-run-file "site-start"
  "File containing site-wide run-time initializations.
This file is loaded at run-time before `~/.emacs'.  It contains inits
that need to be in place for the entire site, but which, due to their
higher incidence of change, don't make sense to load into emacs'
dumped image.  Thus, the run-time load order is: 1. file described in
208 209 210 211 212 213 214 215
this variable, if non-nil; 2. `~/.emacs'; 3. `default.el'.

Don't use the `site-start.el' file for things some users may not like.
Put them in `default.el' instead, so that users can more easily
override them.  Users can prevent loading `default.el' with the `-q'
option or by setting `inhibit-default-init' in their own init files,
but inhibiting `site-start.el' requires `--no-site-file', which
is less convenient.")
216

217 218 219 220 221
(defconst iso-8859-1-locale-regexp "8859[-_]?1"
  "Regexp that specifies when to enable the ISO 8859-1 character set.
We do that if this regexp matches the locale name
specified by the LC_ALL, LC_CTYPE and LANG environment variables.")

222 223 224
(defvar mail-host-address nil
  "*Name of this machine, for purposes of naming users.")

225
(defvar user-mail-address nil
226 227 228
  "*Full mailing address of this user.
This is initialized based on `mail-host-address',
after your init file is read, in case it sets `mail-host-address'.")
229

230
(defvar auto-save-list-file-prefix "~/.saves-"
231 232 233 234 235 236
  "Prefix for generating `auto-save-list-file-name'.
This is used after reading your `.emacs' file to initialize
`auto-save-list-file-name', by appending Emacs's pid and the system name,
if you have not already set `auto-save-list-file-name' yourself.
Set this to nil if you want to prevent `auto-save-list-file-name'
from being initialized.")
237

Jim Blandy's avatar
Jim Blandy committed
238 239
(defvar init-file-debug nil)

240 241
(defvar init-file-had-error nil)

242 243 244 245 246
;; This function is called from the subdirs.el file.
(defun normal-top-level-add-to-load-path (dirs)
  (let ((tail (member default-directory load-path)))
    (setcdr tail (append (mapcar 'expand-file-name dirs) (cdr tail)))))

Jim Blandy's avatar
Jim Blandy committed
247 248 249 250
(defun normal-top-level ()
  (if command-line-processed
      (message "Back to top level.")
    (setq command-line-processed t)
251 252 253 254 255 256
    ;; Give *Messages* the same default-directory as *scratch*,
    ;; just to keep things predictable.
    (let ((dir default-directory))
      (save-excursion
	(set-buffer (get-buffer "*Messages*"))
	(setq default-directory dir)))
257 258 259 260 261 262 263 264 265 266
    ;; Look in each dir in load-path for a subdirs.el file.
    ;; If we find one, load it, which will add the appropriate subdirs
    ;; of that dir into load-path,
    (let ((tail load-path)
	  new)
      (while tail
	(setq new (cons (car tail) new))
	(let ((default-directory (car tail)))
	  (load (expand-file-name "subdirs.el" (car tail)) t t t))
	(setq tail (cdr tail))))
Jim Blandy's avatar
Jim Blandy committed
267
    (if (not (eq system-type 'vax-vms))
268 269 270 271 272 273 274 275 276 277 278 279 280 281
	(progn
	  ;; If the PWD environment variable isn't accurate, delete it.
	  (let ((pwd (getenv "PWD")))
	    (and (stringp pwd)
		 ;; Use FOO/., so that if FOO is a symlink, file-attributes
		 ;; describes the directory linked to, not FOO itself.
		 (or (equal (file-attributes
			     (concat (file-name-as-directory pwd) "."))
			    (file-attributes
			     (concat (file-name-as-directory default-directory)
				     ".")))
		     (setq process-environment
			   (delete (concat "PWD=" pwd)
				   process-environment)))))))
Jim Blandy's avatar
Jim Blandy committed
282
    (setq default-directory (abbreviate-file-name default-directory))
283 284 285 286 287
    (let ((menubar-bindings-done nil))
      (unwind-protect
	  (command-line)
	;; Do this again, in case .emacs defined more abbreviations.
	(setq default-directory (abbreviate-file-name default-directory))
288 289
	;; Specify the file for recording all the auto save files of this session.
	;; This is used by recover-session.
290 291 292 293 294 295 296 297
	(or auto-save-list-file-name
	    (and auto-save-list-file-prefix
		 (setq auto-save-list-file-name
		       (expand-file-name
			(format "%s%d-%s"
				auto-save-list-file-prefix
				(emacs-pid)
				(system-name))))))
298 299 300 301 302 303 304 305 306 307 308 309 310
	(run-hooks 'emacs-startup-hook)
	(and term-setup-hook
	     (run-hooks 'term-setup-hook))
	;; Modify the initial frame based on what .emacs puts into
	;; ...-frame-alist.
	(if (fboundp 'frame-notice-user-settings)
	    (frame-notice-user-settings))
	;; Now we know the user's default font, so add it to the menu.
	(if (fboundp 'font-menu-add-default)
	    (font-menu-add-default))
	(and window-setup-hook
	     (run-hooks 'window-setup-hook))
	(or menubar-bindings-done
311
	    (if (or (eq window-system 'x) (eq window-system 'win32))
312
		(precompute-menubar-bindings)))))))
313 314 315

;; Precompute the keyboard equivalents in the menu bar items.
(defun precompute-menubar-bindings ()
316 317 318 319 320 321
  (let ((submap (lookup-key global-map [menu-bar])))
    (while submap
      (and (consp (car submap))
	   (symbolp (car (car submap)))
	   (stringp (car-safe (cdr (car submap))))
	   (keymapp (cdr (cdr (car submap))))
322 323 324 325
	   (progn
	     (x-popup-menu nil (cdr (cdr (car submap))))
	     (if purify-flag
		 (garbage-collect))))
326 327
      (setq submap (cdr submap))))
  (setq define-key-rebound-commands t))
Jim Blandy's avatar
Jim Blandy committed
328 329

(defun command-line ()
330 331
  (setq command-line-default-directory default-directory)

Roland McGrath's avatar
Roland McGrath committed
332
  ;; See if we should import version-control from the environment variable.
Jim Blandy's avatar
Jim Blandy committed
333 334 335 336 337 338 339 340 341 342 343 344
  (let ((vc (getenv "VERSION_CONTROL")))
    (cond ((eq vc nil))			;don't do anything if not set
	  ((or (string= vc "t")
	       (string= vc "numbered"))
	   (setq version-control t))
	  ((or (string= vc "nil")
	       (string= vc "existing"))
	   (setq version-control nil))
	  ((or (string= vc "never")
	       (string= vc "simple"))
	   (setq version-control 'never))))

345 346 347 348 349 350 351 352 353 354
  (if (let ((ctype
	     ;; Use the first of these three envvars that has a nonempty value.
	     (or (let ((string (getenv "LC_ALL")))
		   (and (not (equal string "")) string))
		 (let ((string (getenv "LC_CTYPE")))
		   (and (not (equal string "")) string))
		 (let ((string (getenv "LANG")))
		   (and (not (equal string "")) string)))))
	(and ctype
	     (string-match iso-8859-1-locale-regexp ctype)))
355
      (progn 
356
	(require 'disp-table)
357 358 359
	(standard-display-european t)
	(require 'iso-syntax)))

Jim Blandy's avatar
Jim Blandy committed
360 361 362 363 364
  ;;! This has been commented out; I currently find the behavior when
  ;;! split-window-keep-point is nil disturbing, but if I can get used
  ;;! to it, then it would be better to eliminate the option.
  ;;! ;; Choose a good default value for split-window-keep-point.
  ;;! (setq split-window-keep-point (> baud-rate 2400))
Jim Blandy's avatar
Jim Blandy committed
365

Jim Blandy's avatar
Jim Blandy committed
366
  ;; Read window system's init file if using a window system.
367 368 369 370 371 372 373 374 375 376
  (condition-case error
      (if (and window-system (not noninteractive))
	  (load (concat term-file-prefix
			(symbol-name window-system)
			"-win")
		;; Every window system should have a startup file;
		;; barf if we can't find it.
		nil t))
    ;; If we can't read it, print the error message and exit.
    (error
377 378 379 380 381 382 383 384 385 386 387 388 389 390
     (princ
      (if (eq (car error) 'error)
	  (apply 'concat (cdr error))
	(if (memq 'file-error (get (car error) 'error-conditions))
	    (format "%s: %s"
		     (nth 1 error)
		     (mapconcat '(lambda (obj) (prin1-to-string obj t))
				(cdr (cdr error)) ", "))
	  (format "%s: %s"
		   (get (car error) 'error-message)
		   (mapconcat '(lambda (obj) (prin1-to-string obj t))
			      (cdr error) ", "))))
      'external-debugging-output)
     (setq window-system nil)
391
     (kill-emacs)))
Jim Blandy's avatar
Jim Blandy committed
392

Jim Blandy's avatar
Jim Blandy committed
393 394 395
  (let ((done nil)
	(args (cdr command-line-args)))

Jim Blandy's avatar
Jim Blandy committed
396 397 398 399 400 401
    ;; Figure out which user's init file to load,
    ;; either from the environment or from the options.
    (setq init-file-user (if noninteractive nil (user-login-name)))
    ;; If user has not done su, use current $HOME to find .emacs.
    (and init-file-user (string= init-file-user (user-real-login-name))
	 (setq init-file-user ""))
Jim Blandy's avatar
Jim Blandy committed
402 403 404 405

    ;; Process the command-line args, and delete the arguments
    ;; processed.  This is consistent with the way main in emacs.c
    ;; does things.
Jim Blandy's avatar
Jim Blandy committed
406
    (while (and (not done) args)
407
      (let ((longopts '(("--no-init-file") ("--no-site-file") ("--user")
408
			("--debug-init") ("--iconic") ("--icon-type")))
409 410
	    (argi (car args))
	    (argval nil))
411 412 413
	;; Handle --OPTION=VALUE format.
	(if (and (string-match "\\`--" argi)
		 (string-match "=" argi))
414 415
	    (setq argval (substring argi (match-end 0))
		  argi (substring argi 0 (match-beginning 0))))
416 417 418 419 420 421 422
	(let ((completion (try-completion argi longopts)))
	  (if (eq completion t)
	      (setq argi (substring argi 1))
	    (if (stringp completion)
		(let ((elt (assoc completion longopts)))
		  (or elt
		      (error "Option `%s' is ambiguous" argi))
423 424
		  (setq argi (substring (car elt) 1)))
	      (setq argval nil))))
Jim Blandy's avatar
Jim Blandy committed
425 426 427 428 429 430 431
	(cond
	 ((or (string-equal argi "-q")
	      (string-equal argi "-no-init-file"))
	  (setq init-file-user nil
		args (cdr args)))
	 ((or (string-equal argi "-u")
	      (string-equal argi "-user"))
432
	  (or argval
433 434
	      (setq args (cdr args)
		    argval (car args)))
435 436
	  (setq init-file-user argval
		argval nil
Jim Blandy's avatar
Jim Blandy committed
437
		args (cdr args)))
438 439 440
	 ((string-equal argi "-no-site-file")
	  (setq site-run-file nil
		args (cdr args)))
Jim Blandy's avatar
Jim Blandy committed
441 442 443
	 ((string-equal argi "-debug-init")
	  (setq init-file-debug t
		args (cdr args)))
444 445 446 447 448 449 450 451 452 453
	 ((string-equal argi "-iconic")
	  (setq initial-frame-alist
		(cons '(visibility . icon) initial-frame-alist))
	  (setq args (cdr args)))
	 ((or (string-equal argi "-icon-type")
	      (string-equal argi "-i")
	      (string-equal argi "-itype"))
	  (setq default-frame-alist
		(cons '(icon-type . t) default-frame-alist))
	  (setq args (cdr args)))
454 455 456 457 458
	 (t (setq done t)))
	;; Was argval set but not used?
	(and argval
	     (error "Option `%s' doesn't allow an argument" argi))))

Jim Blandy's avatar
Jim Blandy committed
459
    ;; Re-attach the program name to the front of the arg list.
460
    (and command-line-args (setcdr command-line-args args)))
Jim Blandy's avatar
Jim Blandy committed
461

462
  ;; Under X Windows, this creates the X frame and deletes the terminal frame.
463 464
  (if (fboundp 'face-initialize)
      (face-initialize))
465 466
  (if (fboundp 'frame-initialize)
      (frame-initialize))
467
  ;; If frame was created with a menu bar, set menu-bar-mode on.
468
  (if (or (not (or (eq window-system 'x) (eq window-system 'win32)))
469
	  (> (cdr (assq 'menu-bar-lines (frame-parameters))) 0))
470
      (menu-bar-mode t))
471

Roland McGrath's avatar
Roland McGrath committed
472
  (run-hooks 'before-init-hook)
Jim Blandy's avatar
Jim Blandy committed
473

Roland McGrath's avatar
Roland McGrath committed
474 475 476
  ;; Run the site-start library if it exists.  The point of this file is
  ;; that it is run before .emacs.  There is no point in doing this after
  ;; .emacs; that is useless.
477 478
  (if site-run-file 
      (load site-run-file t t))
Roland McGrath's avatar
Roland McGrath committed
479

480 481 482 483
  ;; Sites should not disable this.  Only individuals should disable
  ;; the startup message.
  (setq inhibit-startup-message nil)

Jim Blandy's avatar
Jim Blandy committed
484
  ;; Load that user's init file, or the default one, or none.
485 486 487 488 489 490 491 492 493 494
  (let (debug-on-error-from-init-file
	debug-on-error-should-be-set
	(debug-on-error-initial
	 (if (eq init-file-debug t) 'startup init-file-debug)))
    (let ((debug-on-error debug-on-error-initial)
	  ;; This function actually reads the init files.
	  (inner
	   (function
	    (lambda ()
	      (if init-file-user
495 496 497 498 499
		  (progn
		    (setq user-init-file 
			  (cond 
			   ((eq system-type 'ms-dos)
			    (concat "~" init-file-user "/_emacs"))
500 501
			   ((eq system-type 'windows-nt)
			    "~/_emacs")
502 503 504 505 506 507 508 509 510 511 512 513
			   ((eq system-type 'vax-vms) 
			    "sys$login:.emacs")
			   (t 
			    (concat "~" init-file-user "/.emacs"))))
		    (load user-init-file t t t)
		    (or inhibit-default-init
			(let ((inhibit-startup-message nil))
			  ;; Users are supposed to be told their rights.
			  ;; (Plus how to get help and how to undo.)
			  ;; Don't you dare turn this off for anyone
			  ;; except yourself.
			  (load "default" t t)))))))))
514 515 516 517 518 519 520 521 522
      (if init-file-debug
	  ;; Do this without a condition-case if the user wants to debug.
	  (funcall inner)
	(condition-case error
	    (progn
	      (funcall inner)
	      (setq init-file-had-error nil))
	  (error (message "Error in init file: %s%s%s"
			  (get (car error) 'error-message)
523
			  (if (cdr error) ": " "")
524 525
			  (mapconcat 'prin1-to-string (cdr error) ", "))
		 (setq init-file-had-error t))))
526
      ;; If we can tell that the init file altered debug-on-error,
527 528 529 530 531 532
      ;; arrange to preserve the value that it set up.
      (or (eq debug-on-error debug-on-error-initial)
	  (setq debug-on-error-should-be-set t
		debug-on-error-from-init-file debug-on-error)))
    (if debug-on-error-should-be-set
	(setq debug-on-error debug-on-error-from-init-file)))
Jim Blandy's avatar
Jim Blandy committed
533

534 535 536 537 538 539
  ;; Do this here in case the init file sets mail-host-address.
  (or user-mail-address
      (setq user-mail-address (concat (user-login-name) "@"
				      (or mail-host-address
					  (system-name)))))

Roland McGrath's avatar
Roland McGrath committed
540 541
  (run-hooks 'after-init-hook)

Jim Blandy's avatar
Jim Blandy committed
542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559
  ;; If *scratch* exists and init file didn't change its mode, initialize it.
  (if (get-buffer "*scratch*")
      (save-excursion
	(set-buffer "*scratch*")
	(if (eq major-mode 'fundamental-mode)
	    (funcall initial-major-mode))))
  ;; Load library for our terminal type.
  ;; User init file can set term-file-prefix to nil to prevent this.
  (and term-file-prefix (not noninteractive) (not window-system)
       (let ((term (getenv "TERM"))
	     hyphend)
	 (while (and term
		     (not (load (concat term-file-prefix term) t t)))
	   ;; Strip off last hyphen and what follows, then try again
	   (if (setq hyphend (string-match "[-_][^-_]+$" term))
	       (setq term (substring term 0 hyphend))
	     (setq term nil)))))

Jim Blandy's avatar
Jim Blandy committed
560
  ;; Process the remaining args.
Jim Blandy's avatar
Jim Blandy committed
561 562 563 564 565 566
  (command-line-1 (cdr command-line-args))

  ;; If -batch, terminate after processing the command options.
  (if noninteractive (kill-emacs t)))

(defun command-line-1 (command-line-args-left)
567
  (or noninteractive (input-pending-p) init-file-had-error
568 569 570 571 572 573 574 575 576
      (and inhibit-startup-echo-area-message
	   (let ((buffer (get-buffer-create " *temp*")))
	     (prog1
		 (condition-case nil
		     (save-excursion
		       (set-buffer buffer)
		       (insert-file-contents user-init-file)
		       (re-search-forward
			(concat
577 578 579 580 581 582 583 584
			 "([ \t\n]*setq[ \t\n]+"
			 "inhibit-startup-echo-area-message[ \t\n]+"
			 (regexp-quote
			  (prin1-to-string
			   (if (string= init-file-user "")
			       (user-login-name)
			     init-file-user)))
			 "[ \t\n]*)")
585 586 587 588 589 590 591
			nil t))
		   (error nil))
	       (kill-buffer buffer))))
      (message (if (eq (key-binding "\C-h\C-p") 'describe-project)
		   "For information about the GNU Project and its goals, type C-h C-p."
		 (substitute-command-keys
		  "For information about the GNU Project and its goals, type \\[describe-project]."))))
Jim Blandy's avatar
Jim Blandy committed
592 593 594 595 596 597 598 599 600 601 602 603 604
  (if (null command-line-args-left)
      (cond ((and (not inhibit-startup-message) (not noninteractive)
		  ;; Don't clobber a non-scratch buffer if init file
		  ;; has selected it.
		  (string= (buffer-name) "*scratch*")
		  (not (input-pending-p)))
	     ;; If there are no switches to process, we might as well
	     ;; run this hook now, and there may be some need to do it
	     ;; before doing any output.
	     (and term-setup-hook
		  (run-hooks 'term-setup-hook))
	     ;; Don't let the hook be run twice.
	     (setq term-setup-hook nil)
605 606 607 608 609 610 611 612

	     ;; It's important to notice the user settings before we
	     ;; display the startup message; otherwise, the settings
	     ;; won't take effect until the user gives the first
	     ;; keystroke, and that's distracting.
	     (if (fboundp 'frame-notice-user-settings)
		 (frame-notice-user-settings))

Jim Blandy's avatar
Jim Blandy committed
613 614 615
	     (and window-setup-hook
		  (run-hooks 'window-setup-hook))
	     (setq window-setup-hook nil)
616 617
	     ;; Do this now to avoid an annoying delay if the user
	     ;; clicks the menu bar during the sit-for.
618
	     (if (or (eq window-system 'x) (eq window-system 'win32))
619
		 (precompute-menubar-bindings))
620
	     (setq menubar-bindings-done t)
Jim Blandy's avatar
Jim Blandy committed
621 622
	     (unwind-protect
		 (progn
623 624 625
		   ;; The convention for this piece of code is that
		   ;; each piece of output starts with one or two newlines
		   ;; and does not end with any newlines.
Jim Blandy's avatar
Jim Blandy committed
626 627
		   (insert (emacs-version)
			   "
628
Copyright (C) 1995 Free Software Foundation, Inc.")
Jim Blandy's avatar
Jim Blandy committed
629 630 631 632 633
		   ;; If keys have their default meanings,
		   ;; use precomputed string to save lots of time.
		   (if (and (eq (key-binding "\C-h") 'help-command)
			    (eq (key-binding "\C-xu") 'advertised-undo)
			    (eq (key-binding "\C-x\C-c") 'save-buffers-kill-emacs)
634 635
			    (eq (key-binding "\C-ht") 'help-with-tutorial)
			    (eq (key-binding "\C-hi") 'info))
636 637
		       (insert "\n
Type C-h for help; C-x u to undo changes.  (`C-' means use CTRL key.)
Jim Blandy's avatar
Jim Blandy committed
638 639
To kill the Emacs job, type C-x C-c.
Type C-h t for a tutorial on using Emacs.
640 641
Type C-h i to enter Info, which you can use to read GNU documentation.")
		     (insert (substitute-command-keys
642 643
			      (format "\n
Type %s for help; \\[advertised-undo] to undo changes.  (`C-' means use CTRL key.)
644 645 646 647 648 649 650 651
To kill the Emacs job, type \\[save-buffers-kill-emacs].
Type \\[help-with-tutorial] for a tutorial on using Emacs.
Type \\[info] to enter Info, which you can use to read GNU documentation."
				      (let ((where (where-is-internal
						    'help-command nil t)))
					(if where
					    (key-description where)
					  "M-x help"))))))
652 653 654 655
		   ;; Say how to use the menu bar
		   ;; if that is not with the mouse.
		   (if (not (assq 'display (frame-parameters)))
		       (if (eq (key-binding "\M-`") 'tmm-menubar)
656
			   (insert "\n\nType F10, ESC ` or Meta-` to use the menu bar.")
657 658
			 (insert (substitute-command-keys
				  "\n\nType \\[tmm-menubar] to use the menu bar."))))
659 660 661

		   ;; Windows and MSDOS (currently) do not count as
		   ;; window systems, but do have mouse support.
662
		   (if (or (memq system-type '(msdos windowsnt))
663
			   window-system)
664
		       (insert "\n
665
C-mouse-3 (third mouse button, with Control) gets a mode-specific menu."))
666 667 668 669 670 671 672
		   (if (directory-files (file-name-directory auto-save-list-file-prefix)
					nil
					(concat "\\`"
						(regexp-quote
						 (file-name-nondirectory
						  auto-save-list-file-prefix)))
					t)
673 674 675 676
		       (insert "\n\nIf an Emacs session crashed recently,\n"
			       "type M-x recover-session RET to recover"
			       " the files you were editing."))

677 678 679 680
		   (if (and (eq (key-binding "\C-h\C-c") 'describe-copying)
			    (eq (key-binding "\C-h\C-d") 'describe-distribution)
			    (eq (key-binding "\C-h\C-w") 'describe-no-warranty))
		       (insert 
681
			"\n
Jim Blandy's avatar
Jim Blandy committed
682 683 684 685
GNU Emacs comes with ABSOLUTELY NO WARRANTY; type C-h C-w for full details.
You may give out copies of Emacs; type C-h C-c to see the conditions.
Type C-h C-d for information on getting the latest version.")
		     (insert (substitute-command-keys
686
			      "\n
Jim Blandy's avatar
Jim Blandy committed
687 688 689
GNU Emacs comes with ABSOLUTELY NO WARRANTY; type \\[describe-no-warranty] for full details.
You may give out copies of Emacs; type \\[describe-copying] to see the conditions.
Type \\[describe-distribution] for information on getting the latest version.")))
690

Jim Blandy's avatar
Jim Blandy committed
691 692 693 694 695 696 697 698
		   (set-buffer-modified-p nil)
		   (sit-for 120))
	       (save-excursion
		 ;; In case the Emacs server has already selected
		 ;; another buffer, erase the one our message is in.
		 (set-buffer (get-buffer "*scratch*"))
		 (erase-buffer)
		 (set-buffer-modified-p nil)))))
699 700 701 702
    ;; Delay 2 seconds after the init file error message
    ;; was displayed, so user can read it.
    (if init-file-had-error
	(sit-for 2))
703
    (let ((dir command-line-default-directory)
Jim Blandy's avatar
Jim Blandy committed
704 705 706 707
	  (file-count 0)
	  first-file-buffer
	  (line 0))
      (while command-line-args-left
708 709 710 711 712
	(let* ((argi (car command-line-args-left))
	       (orig-argi argi)
	       ;; This includes our standard options' long versions
	       ;; and long versions of what's on command-switch-alist.
	       (longopts
713
	        (append '(("--funcall") ("--load") ("--insert") ("--kill")
714
			  ("--directory") ("--eval"))
715 716 717
			(mapcar '(lambda (elt)
				   (list (concat "-" (car elt))))
				command-switch-alist)))
718 719 720 721 722
	       tem argval completion
	       ;; List of directories specified in -L/--directory,
	       ;; in reverse of the order specified.
	       extra-load-path
	       (initial-load-path load-path))
Jim Blandy's avatar
Jim Blandy committed
723
	  (setq command-line-args-left (cdr command-line-args-left))
724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740

	  ;; Convert long options to ordinary options
	  ;; and separate out an attached option argument into argval.
	  (if (string-match "^--[^=]*=" argi)
	      (setq argval (substring argi (match-end 0))
		    argi (substring argi 0 (1- (match-end 0)))))
	  (setq completion (try-completion argi longopts))
	  (if (eq completion t)
	      (setq argi (substring argi 1))
	    (if (stringp completion)
		(let ((elt (assoc completion longopts)))
		  (or elt
		      (error "Option `%s' is ambiguous" argi))
		  (setq argi (substring (car elt) 1)))
	      (setq argval nil argi orig-argi)))

	  ;; Execute the option.
Jim Blandy's avatar
Jim Blandy committed
741
	  (cond ((setq tem (assoc argi command-switch-alist))
742 743 744 745 746
		 (if argval
		     (let ((command-line-args-left
			    (cons argval command-line-args-left)))
		       (funcall (cdr tem) argi))
		   (funcall (cdr tem) argi)))
Jim Blandy's avatar
Jim Blandy committed
747 748 749
		((or (string-equal argi "-f")  ;what the manual claims
		     (string-equal argi "-funcall")
		     (string-equal argi "-e")) ; what the source used to say
750 751 752 753
		 (if argval
		     (setq tem (intern argval))
		   (setq tem (intern (car command-line-args-left)))
		   (setq command-line-args-left (cdr command-line-args-left)))
754 755 756
		 (if (arrayp (symbol-function tem))
		     (command-execute tem)
		   (funcall tem)))
757 758 759 760 761
		((string-equal argi "-eval")
		 (if argval
		     (setq tem argval)
		   (setq tem (car command-line-args-left))
		   (setq command-line-args-left (cdr command-line-args-left)))
762
		 (eval (read tem)))
763 764 765 766 767 768 769 770 771 772 773
		;; Set the default directory as specified in -L.
		((or (string-equal argi "-L")
		     (string-equal argi "-directory"))
		 (if argval
		     (setq tem argval)
		   (setq tem (car command-line-args-left)
			 command-line-args-left (cdr command-line-args-left)))
		 (setq extra-load-path
		       (cons (expand-file-name tem) extra-load-path))
		 (setq load-path (append (nreverse extra-load-path)
					 initial-load-path)))
Jim Blandy's avatar
Jim Blandy committed
774 775
		((or (string-equal argi "-l")
		     (string-equal argi "-load"))
776 777 778 779 780
		 (if argval
		     (setq tem argval)
		   (setq tem (car command-line-args-left)
			 command-line-args-left (cdr command-line-args-left)))
		 (let ((file tem))
Jim Blandy's avatar
Jim Blandy committed
781 782 783 784
		   ;; Take file from default dir if it exists there;
		   ;; otherwise let `load' search for it.
		   (if (file-exists-p (expand-file-name file))
		       (setq file (expand-file-name file)))
785
		   (load file nil t)))
786
		((string-equal argi "-insert")
787 788 789 790
		 (if argval
		     (setq tem argval)
		   (setq tem (car command-line-args-left)
			 command-line-args-left (cdr command-line-args-left)))
791 792
		 (or (stringp tem)
		     (error "File name omitted from `-insert' option"))
793
		 (insert-file-contents tem))
Jim Blandy's avatar
Jim Blandy committed
794 795 796 797 798 799 800 801 802 803 804 805 806 807 808
		((string-equal argi "-kill")
		 (kill-emacs t))
		((string-match "^\\+[0-9]+\\'" argi)
		 (setq line (string-to-int argi)))
		(t
		 ;; We have almost exhausted our options. See if the
		 ;; user has made any other command-line options available
		 (let ((hooks command-line-functions);; lrs 7/31/89
		       (did-hook nil))
		   (while (and hooks
			       (not (setq did-hook (funcall (car hooks)))))
		     (setq hooks (cdr hooks)))
		   (if (not did-hook)
		       ;; Ok, presume that the argument is a file name
		       (progn
809 810
			 (if (string-match "\\`-" argi)
			     (error "Unknown option `%s'" argi))
Jim Blandy's avatar
Jim Blandy committed
811 812 813 814 815 816 817 818 819 820 821 822 823
			 (setq file-count (1+ file-count))
			 (cond ((= file-count 1)
				(setq first-file-buffer
				      (find-file (expand-file-name argi dir))))
			       (t
				(find-file-other-window (expand-file-name argi dir))))
			 (or (zerop line)
			     (goto-line line))
			 (setq line 0))))))))
      ;; If 3 or more files visited, and not all visible,
      ;; show user what they all are.
      (if (> file-count 2)
	  (or (get-buffer-window first-file-buffer)
824
	      (progn (other-window 1)
825
		     (buffer-menu)))))))
Eric S. Raymond's avatar
Eric S. Raymond committed
826 827

;;; startup.el ends here