startup.el 20.3 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 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 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

; These are processed only at the beginning of the argument list.
; -batch		execute noninteractively (messages go to stdout,
;			 variable noninteractive set to t)
;			 This option must be the first in the arglist.
;			 Processed by `main' in emacs.c -- never seen by lisp
; -t file		Specify to use file rather than stdin/stdout
;			 as the terminal.
;			 This option must be the first in the arglist.
;			 Processed by `main' in emacs.c -- never seen by lisp
; -nw			Inhibit the use of any window-system-specific display
;			 code; use the current virtual terminal.
;			 This option must be the first in the arglist.
;			 Processed by `main' in emacs.c -- never seen by lisp
; -q			load no init file
; -no-init-file		same
; -u user		load user's init file
; -user user		same
; -debug-init		Don't catch errors in init file; let debugger run.

; These are processed in the order encountered.
; -f function		execute function
; -funcall function	same
; -l file		load file
; -load file		same
; -insert file		same
; file			visit file
; -kill			kill (exit) emacs

Eric S. Raymond's avatar
Eric S. Raymond committed
54 55
;;; Code:

Jim Blandy's avatar
Jim Blandy committed
56 57 58 59 60
(setq top-level '(normal-top-level))

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

(defconst inhibit-startup-message nil
61
  "*Non-nil inhibits the initial startup message.
Jim Blandy's avatar
Jim Blandy committed
62 63 64
This is for use in your personal init file, once you are familiar
with the contents of the startup message.")

65 66 67
(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
68
a line of this form:
69
 (setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\")
70 71
If your `.emacs' file is byte-compiled, use the following form instead:
 (eval '(setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\"))
72 73 74
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
75 76 77 78 79 80 81 82 83
(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'.")

84 85 86
(defvar command-line-args-left nil
  "List of command-line args not yet processed.")

Jim Blandy's avatar
Jim Blandy committed
87 88 89
(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
90
`argi' (the current argument) and `command-line-args-left' (the remaining
Jim Blandy's avatar
Jim Blandy committed
91
arguments).  The function should return non-nil only if it recognizes and
Richard M. Stallman's avatar
Richard M. Stallman committed
92 93
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
94

95 96 97 98
(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
99
(defvar before-init-hook nil
Richard M. Stallman's avatar
Richard M. Stallman committed
100
  "Functions to call after handling urgent options but before init files.
Jim Blandy's avatar
Jim Blandy committed
101
The frame system uses this to open frames to display messages while
Jim Blandy's avatar
Jim Blandy committed
102 103
Emacs loads the user's initialization file.")

Roland McGrath's avatar
Roland McGrath committed
104
(defvar after-init-hook nil
Richard M. Stallman's avatar
Richard M. Stallman committed
105
  "Functions to call after loading the init file (`~/.emacs').
Roland McGrath's avatar
Roland McGrath committed
106
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
107
in `.emacs', and put all the actual code on `after-init-hook'.")
Roland McGrath's avatar
Roland McGrath committed
108

Jim Blandy's avatar
Jim Blandy committed
109
(defvar term-setup-hook nil
Richard M. Stallman's avatar
Richard M. Stallman committed
110
  "Functions to be called after loading terminal-specific Lisp code.
Roland McGrath's avatar
Roland McGrath committed
111
See `run-hooks'.  This variable exists for users to set,
Jim Blandy's avatar
Jim Blandy committed
112 113 114 115
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
116 117
  "The brand of keyboard you are using.
This variable is used to define
Jim Blandy's avatar
Jim Blandy committed
118 119 120 121
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
122 123 124
  "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
125 126 127 128 129 130

(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
131 132 133
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
134

Karl Heuer's avatar
Karl Heuer committed
135 136 137
In either of the latter cases, `(concat \"~\" init-file-user \"/\")'
evaluates to the name of the directory where the `.emacs' file was
looked for.")
Jim Blandy's avatar
Jim Blandy committed
138

139 140 141 142 143 144 145 146
(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
this variable, if non-nil; 2. `~/.emacs'; 3. `default.el'.")

147 148 149 150 151
(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.")

152 153 154
(defvar user-mail-address nil
  "Full mailing address of this user.")

Jim Blandy's avatar
Jim Blandy committed
155 156
(defvar init-file-debug nil)

157 158
(defvar init-file-had-error nil)

Jim Blandy's avatar
Jim Blandy committed
159 160 161 162
(defun normal-top-level ()
  (if command-line-processed
      (message "Back to top level.")
    (setq command-line-processed t)
Jim Blandy's avatar
Jim Blandy committed
163
    (if (not (eq system-type 'vax-vms))
164 165 166 167 168 169 170 171 172 173 174 175 176 177
	(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
178
    (setq default-directory (abbreviate-file-name default-directory))
179
    (setq user-mail-address (concat (user-login-name) "@" (system-name)))
180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201
    (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))
	(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
	    (precompute-menubar-bindings))))))

;; Precompute the keyboard equivalents in the menu bar items.
(defun precompute-menubar-bindings ()
202
  (if (eq window-system 'x)
203 204 205 206 207 208 209 210
      (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))))
	       (x-popup-menu nil (cdr (cdr (car submap)))))
	  (setq submap (cdr submap))))))
Jim Blandy's avatar
Jim Blandy committed
211 212

(defun command-line ()
213 214
  (setq command-line-default-directory default-directory)

Roland McGrath's avatar
Roland McGrath committed
215
  ;; See if we should import version-control from the environment variable.
Jim Blandy's avatar
Jim Blandy committed
216 217 218 219 220 221 222 223 224 225 226 227
  (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))))

228 229 230 231 232 233 234 235 236 237
  (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)))
238 239 240 241
      (progn 
	(standard-display-european t)
	(require 'iso-syntax)))

Jim Blandy's avatar
Jim Blandy committed
242 243 244 245 246
  ;;! 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
247

Jim Blandy's avatar
Jim Blandy committed
248 249
  ;; Read window system's init file if using a window system.
  (if (and window-system (not noninteractive))
Jim Blandy's avatar
Jim Blandy committed
250 251 252 253 254 255
      (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))
Jim Blandy's avatar
Jim Blandy committed
256

Jim Blandy's avatar
Jim Blandy committed
257 258 259
  (let ((done nil)
	(args (cdr command-line-args)))

Jim Blandy's avatar
Jim Blandy committed
260 261 262 263 264 265
    ;; 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
266 267 268 269

    ;; 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
270 271 272 273 274 275 276 277 278 279 280 281
    (while (and (not done) args)
      (let ((argi (car args)))
	(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"))
	  (setq args (cdr args)
		init-file-user (car args)
		args (cdr args)))
282 283 284
	 ((string-equal argi "-no-site-file")
	  (setq site-run-file nil
		args (cdr args)))
Jim Blandy's avatar
Jim Blandy committed
285 286 287
	 ((string-equal argi "-debug-init")
	  (setq init-file-debug t
		args (cdr args)))
Jim Blandy's avatar
Jim Blandy committed
288 289 290 291
	 (t (setq done t)))))
    
    ;; Re-attach the program name to the front of the arg list.
    (setcdr command-line-args args))
Jim Blandy's avatar
Jim Blandy committed
292

293
  ;; Under X Windows, this creates the X frame and deletes the terminal frame.
294 295
  (if (fboundp 'face-initialize)
      (face-initialize))
296 297
  (if (fboundp 'frame-initialize)
      (frame-initialize))
298

Roland McGrath's avatar
Roland McGrath committed
299
  (run-hooks 'before-init-hook)
Jim Blandy's avatar
Jim Blandy committed
300

Roland McGrath's avatar
Roland McGrath committed
301 302 303
  ;; 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.
304 305
  (if site-run-file 
      (load site-run-file t t))
Roland McGrath's avatar
Roland McGrath committed
306

307 308 309 310
  ;; Sites should not disable this.  Only individuals should disable
  ;; the startup message.
  (setq inhibit-startup-message nil)

Jim Blandy's avatar
Jim Blandy committed
311
  ;; Load that user's init file, or the default one, or none.
312 313 314 315 316 317 318 319 320 321
  (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
322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338
		  (progn
		    (setq user-init-file 
			  (cond 
			   ((eq system-type 'ms-dos)
			    (concat "~" init-file-user "/_emacs"))
			   ((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)))))))))
339 340 341 342 343 344 345 346 347
      (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)
348
			  (if (cdr error) ": " "")
349 350
			  (mapconcat 'prin1-to-string (cdr error) ", "))
		 (setq init-file-had-error t))))
351
      ;; If we can tell that the init file altered debug-on-error,
352 353 354 355 356 357
      ;; 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
358

Roland McGrath's avatar
Roland McGrath committed
359 360
  (run-hooks 'after-init-hook)

Jim Blandy's avatar
Jim Blandy committed
361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378
  ;; 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
379
  ;; Process the remaining args.
Jim Blandy's avatar
Jim Blandy committed
380 381 382 383 384 385
  (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)
386
  (or noninteractive (input-pending-p) init-file-had-error
387 388 389 390 391 392 393 394 395
      (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
396 397 398 399 400 401 402 403
			 "([ \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]*)")
404 405 406 407 408 409 410
			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
411 412 413 414 415 416 417 418 419 420 421 422 423
  (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)
424 425 426 427 428 429 430 431

	     ;; 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
432 433 434
	     (and window-setup-hook
		  (run-hooks 'window-setup-hook))
	     (setq window-setup-hook nil)
435 436 437 438
	     ;; Do this now to avoid an annoying delay if the user
	     ;; clicks the menu bar during the sit-for.
	     (precompute-menubar-bindings)
	     (setq menubar-bindings-done t)
Jim Blandy's avatar
Jim Blandy committed
439 440 441 442
	     (unwind-protect
		 (progn
		   (insert (emacs-version)
			   "
443
Copyright (C) 1994 Free Software Foundation, Inc.\n\n")
Jim Blandy's avatar
Jim Blandy committed
444 445 446 447 448 449 450 451 452 453 454 455 456
		   ;; 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)
			    (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)
			    (eq (key-binding "\C-ht") 'help-with-tutorial))
		       (insert 
       "Type C-h for help; C-x u to undo changes.  (`C-' means use CTRL key.)
To kill the Emacs job, type C-x C-c.
Type C-h t for a tutorial on using Emacs.
Richard M. Stallman's avatar
Richard M. Stallman committed
457
Type C-h i to enter Info, which you can use to read GNU documentation.
Jim Blandy's avatar
Jim Blandy committed
458 459 460 461 462 463 464 465

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
       "Type \\[help-command] for help; \\[advertised-undo] to undo changes.  (`C-' means use CTRL key.)
To kill the Emacs job, type \\[save-buffers-kill-emacs].
Type \\[help-with-tutorial] for a tutorial on using Emacs.
Richard M. Stallman's avatar
Richard M. Stallman committed
466
Type \\[info] to enter Info, which you can use to read GNU documentation.
Jim Blandy's avatar
Jim Blandy committed
467 468 469 470 471 472 473 474 475 476 477 478

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.")))
		   (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)))))
479
    (let ((dir command-line-default-directory)
Jim Blandy's avatar
Jim Blandy committed
480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503
	  (file-count 0)
	  first-file-buffer
	  (line 0))
      (while command-line-args-left
	(let ((argi (car command-line-args-left))
	      tem)
	  (setq command-line-args-left (cdr command-line-args-left))
	  (cond ((setq tem (assoc argi command-switch-alist))
		 (funcall (cdr tem) argi))
		((or (string-equal argi "-f")  ;what the manual claims
		     (string-equal argi "-funcall")
		     (string-equal argi "-e")) ; what the source used to say
		 (setq tem (intern (car command-line-args-left)))
		 (setq command-line-args-left (cdr command-line-args-left))
		 (funcall tem))
		((or (string-equal argi "-l")
		     (string-equal argi "-load"))
		 (let ((file (car command-line-args-left)))
		   ;; 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)))
		   (load file nil t))
		 (setq command-line-args-left (cdr command-line-args-left)))
504
		((string-equal argi "-insert")
Jim Blandy's avatar
Jim Blandy committed
505
		 (or (stringp (car command-line-args-left))
506
		     (error "filename omitted from `-insert' option"))
Jim Blandy's avatar
Jim Blandy committed
507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536
		 (insert-file-contents (car command-line-args-left))
		 (setq command-line-args-left (cdr command-line-args-left)))
		((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
			 (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)
537
	      (progn (other-window 1)
538
		     (buffer-menu)))))))
Eric S. Raymond's avatar
Eric S. Raymond committed
539 540

;;; startup.el ends here