lisp/startup.el

   1 ;;; startup.el --- process Emacs shell arguments
   2
   3 ;; Copyright (C) 1985, 1986, 1992, 1994 Free Software Foundation, Inc.
   4
   5 ;; Maintainer: FSF
   6 ;; Keywords: internal
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to
  22 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  23
  24 ;;; Commentary:
  25
  26 ; These are processed only at the beginning of the argument list.
  27 ; -batch                execute noninteractively (messages go to stdout,
  28 ;                        variable noninteractive set to t)
  29 ;                        This option must be the first in the arglist.
  30 ;                        Processed by `main' in emacs.c -- never seen by lisp
  31 ; -t file               Specify to use file rather than stdin/stdout
  32 ;                        as the terminal.
  33 ;                        This option must be the first in the arglist.
  34 ;                        Processed by `main' in emacs.c -- never seen by lisp
  35 ; -nw                   Inhibit the use of any window-system-specific display
  36 ;                        code; use the current virtual terminal.
  37 ;                        This option must be the first in the arglist.
  38 ;                        Processed by `main' in emacs.c -- never seen by lisp
  39 ; -q                    load no init file
  40 ; -no-init-file         same
  41 ; -u user               load user's init file
  42 ; -user user            same
  43 ; -debug-init           Don't catch errors in init file; let debugger run.
  44 ; -no-site-file         Don't load site-run-file.
  45
  46 ; These are processed in the order encountered.
  47 ; -f function           execute function
  48 ; -funcall function     same
  49 ; -l file               load file
  50 ; -load file            same
  51 ; -insert file          insert file into buffer
  52 ; file                  visit file
  53 ; -kill                 kill (exit) emacs
  54
  55 ;;; Code:
  56
  57 (setq top-level '(normal-top-level))
  58
  59 (defvar command-line-processed nil "t once command line has been processed")
  60
  61 (defconst inhibit-startup-message nil
  62   "*Non-nil inhibits the initial startup message.
  63 This is for use in your personal init file, once you are familiar
  64 with the contents of the startup message.")
  65
  66 (defconst inhibit-startup-echo-area-message nil
  67   "*Non-nil inhibits the initial startup echo area message.
  68 Inhibition takes effect only if your `.emacs' file contains
  69 a line of this form:
  70  (setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\")
  71 If your `.emacs' file is byte-compiled, use the following form instead:
  72  (eval '(setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\"))
  73 Thus, someone else using a copy of your `.emacs' file will see
  74 the startup message unless he personally acts to inhibit it.")
  75
  76 (defconst inhibit-default-init nil
  77   "*Non-nil inhibits loading the `default' library.")
  78
  79 (defconst command-switch-alist nil
  80   "Alist of command-line switches.
  81 Elements look like (SWITCH-STRING . HANDLER-FUNCTION).
  82 HANDLER-FUNCTION receives switch name as sole arg;
  83 remaining command-line args are in the variable `command-line-args-left'.")
  84
  85 (defvar command-line-args-left nil
  86   "List of command-line args not yet processed.")
  87
  88 (defvar command-line-functions nil    ;; lrs 7/31/89
  89   "List of functions to process unrecognized command-line arguments.
  90 Each function should access the dynamically bound variables
  91 `argi' (the current argument) and `command-line-args-left' (the remaining
  92 arguments).  The function should return non-nil only if it recognizes and
  93 processes `argi'.  If it does so, it may consume successive arguments by
  94 altering `command-line-args-left' to remove them.")
  95
  96 (defvar command-line-default-directory nil
  97   "Default directory to use for command line arguments.
  98 This is normally copied from `default-directory' when Emacs starts.")
  99
 100 (defvar before-init-hook nil
 101   "Functions to call after handling urgent options but before init files.
 102 The frame system uses this to open frames to display messages while
 103 Emacs loads the user's initialization file.")
 104
 105 (defvar after-init-hook nil
 106   "Functions to call after loading the init file (`~/.emacs').
 107 The call is not protected by a condition-case, so you can set `debug-on-error'
 108 in `.emacs', and put all the actual code on `after-init-hook'.")
 109
 110 (defvar term-setup-hook nil
 111   "Functions to be called after loading terminal-specific Lisp code.
 112 See `run-hooks'.  This variable exists for users to set,
 113 so as to override the definitions made by the terminal-specific file.
 114 Emacs never sets this variable itself.")
 115
 116 (defvar keyboard-type nil
 117   "The brand of keyboard you are using.
 118 This variable is used to define
 119 the proper function and keypad keys for use under X.  It is used in a
 120 fashion analogous to the environment value TERM.")
 121
 122 (defvar window-setup-hook nil
 123   "Normal hook run to initialize window system display.
 124 Emacs runs this hook after processing the command line arguments and loading
 125 the user's init file.")
 126
 127 (defconst initial-major-mode 'lisp-interaction-mode
 128   "Major mode command symbol to use for the initial *scratch* buffer.")
 129
 130 (defvar init-file-user nil
 131   "Identity of user whose `.emacs' file is or was read.
 132 The value is nil if no init file is being used; otherwise, it may be either
 133 the null string, meaning that the init file was taken from the user that
 134 originally logged in, or it may be a string containing a user's name.
 135
 136 In either of the latter cases, `(concat \"~\" init-file-user \"/\")'
 137 evaluates to the name of the directory where the `.emacs' file was
 138 looked for.")
 139
 140 (defvar site-run-file "site-start"
 141   "File containing site-wide run-time initializations.
 142 This file is loaded at run-time before `~/.emacs'.  It contains inits
 143 that need to be in place for the entire site, but which, due to their
 144 higher incidence of change, don't make sense to load into emacs'
 145 dumped image.  Thus, the run-time load order is: 1. file described in
 146 this variable, if non-nil; 2. `~/.emacs'; 3. `default.el'.")
 147
 148 (defconst iso-8859-1-locale-regexp "8859[-_]?1"
 149   "Regexp that specifies when to enable the ISO 8859-1 character set.
 150 We do that if this regexp matches the locale name
 151 specified by the LC_ALL, LC_CTYPE and LANG environment variables.")
 152
 153 (defvar mail-host-address nil
 154   "*Name of this machine, for purposes of naming users.")
 155
 156 (defvar user-mail-address nil
 157   "*Full mailing address of this user.")
 158
 159 (defvar init-file-debug nil)
 160
 161 (defvar init-file-had-error nil)
 162
 163 ;; This function is called from the subdirs.el file.
 164 (defun normal-top-level-add-to-load-path (dirs)
 165   (let ((tail (member default-directory load-path)))
 166     (setcdr tail (append (mapcar 'expand-file-name dirs) (cdr tail)))))
 167
 168 (defun normal-top-level ()
 169   (if command-line-processed
 170       (message "Back to top level.")
 171     (setq command-line-processed t)
 172     ;; Look in each dir in load-path for a subdirs.el file.
 173     ;; If we find one, load it, which will add the appropriate subdirs
 174     ;; of that dir into load-path,
 175     (let ((tail load-path)
 176           new)
 177       (while tail
 178         (setq new (cons (car tail) new))
 179         (let ((default-directory (car tail)))
 180           (load (expand-file-name "subdirs.el" (car tail)) t t t))
 181         (setq tail (cdr tail))))
 182     (if (not (eq system-type 'vax-vms))
 183         (progn
 184           ;; If the PWD environment variable isn't accurate, delete it.
 185           (let ((pwd (getenv "PWD")))
 186             (and (stringp pwd)
 187                  ;; Use FOO/., so that if FOO is a symlink, file-attributes
 188                  ;; describes the directory linked to, not FOO itself.
 189                  (or (equal (file-attributes
 190                              (concat (file-name-as-directory pwd) "."))
 191                             (file-attributes
 192                              (concat (file-name-as-directory default-directory)
 193                                      ".")))
 194                      (setq process-environment
 195                            (delete (concat "PWD=" pwd)
 196                                    process-environment)))))))
 197     (setq default-directory (abbreviate-file-name default-directory))
 198     (setq user-mail-address (concat (user-login-name) "@"
 199                                     (or mail-host-address
 200                                         (system-name))))
 201     (let ((menubar-bindings-done nil))
 202       (unwind-protect
 203           (command-line)
 204         ;; Do this again, in case .emacs defined more abbreviations.
 205         (setq default-directory (abbreviate-file-name default-directory))
 206         (run-hooks 'emacs-startup-hook)
 207         (and term-setup-hook
 208              (run-hooks 'term-setup-hook))
 209         ;; Modify the initial frame based on what .emacs puts into
 210         ;; ...-frame-alist.
 211         (if (fboundp 'frame-notice-user-settings)
 212             (frame-notice-user-settings))
 213         ;; Now we know the user's default font, so add it to the menu.
 214         (if (fboundp 'font-menu-add-default)
 215             (font-menu-add-default))
 216         (and window-setup-hook
 217              (run-hooks 'window-setup-hook))
 218         (or menubar-bindings-done
 219             (precompute-menubar-bindings))))))
 220
 221 ;; Precompute the keyboard equivalents in the menu bar items.
 222 (defun precompute-menubar-bindings ()
 223   (if (eq window-system 'x)
 224       (let ((submap (lookup-key global-map [menu-bar])))
 225         (while submap
 226           (and (consp (car submap))
 227                (symbolp (car (car submap)))
 228                (stringp (car-safe (cdr (car submap))))
 229                (keymapp (cdr (cdr (car submap))))
 230                (x-popup-menu nil (cdr (cdr (car submap)))))
 231           (setq submap (cdr submap))))))
 232
 233 (defun command-line ()
 234   (setq command-line-default-directory default-directory)
 235
 236   ;; See if we should import version-control from the environment variable.
 237   (let ((vc (getenv "VERSION_CONTROL")))
 238     (cond ((eq vc nil))                 ;don't do anything if not set
 239           ((or (string= vc "t")
 240                (string= vc "numbered"))
 241            (setq version-control t))
 242           ((or (string= vc "nil")
 243                (string= vc "existing"))
 244            (setq version-control nil))
 245           ((or (string= vc "never")
 246                (string= vc "simple"))
 247            (setq version-control 'never))))
 248
 249   (if (let ((ctype
 250              ;; Use the first of these three envvars that has a nonempty value.
 251              (or (let ((string (getenv "LC_ALL")))
 252                    (and (not (equal string "")) string))
 253                  (let ((string (getenv "LC_CTYPE")))
 254                    (and (not (equal string "")) string))
 255                  (let ((string (getenv "LANG")))
 256                    (and (not (equal string "")) string)))))
 257         (and ctype
 258              (string-match iso-8859-1-locale-regexp ctype)))
 259       (progn
 260         (require 'disp-table)
 261         (standard-display-european t)
 262         (require 'iso-syntax)))
 263
 264   ;;! This has been commented out; I currently find the behavior when
 265   ;;! split-window-keep-point is nil disturbing, but if I can get used
 266   ;;! to it, then it would be better to eliminate the option.
 267   ;;! ;; Choose a good default value for split-window-keep-point.
 268   ;;! (setq split-window-keep-point (> baud-rate 2400))
 269
 270   ;; Read window system's init file if using a window system.
 271   (condition-case error
 272       (if (and window-system (not noninteractive))
 273           (load (concat term-file-prefix
 274                         (symbol-name window-system)
 275                         "-win")
 276                 ;; Every window system should have a startup file;
 277                 ;; barf if we can't find it.
 278                 nil t))
 279     ;; If we can't read it, print the error message and exit.
 280     (error
 281      (princ
 282       (if (eq (car error) 'error)
 283           (apply 'concat (cdr error))
 284         (if (memq 'file-error (get (car error) 'error-conditions))
 285             (format "%s: %s"
 286                      (nth 1 error)
 287                      (mapconcat '(lambda (obj) (prin1-to-string obj t))
 288                                 (cdr (cdr error)) ", "))
 289           (format "%s: %s"
 290                    (get (car error) 'error-message)
 291                    (mapconcat '(lambda (obj) (prin1-to-string obj t))
 292                               (cdr error) ", "))))
 293       'external-debugging-output)
 294      (setq window-system nil)
 295      (kill-emacs)))
 296
 297   (let ((done nil)
 298         (args (cdr command-line-args)))
 299
 300     ;; Figure out which user's init file to load,
 301     ;; either from the environment or from the options.
 302     (setq init-file-user (if noninteractive nil (user-login-name)))
 303     ;; If user has not done su, use current $HOME to find .emacs.
 304     (and init-file-user (string= init-file-user (user-real-login-name))
 305          (setq init-file-user ""))
 306
 307     ;; Process the command-line args, and delete the arguments
 308     ;; processed.  This is consistent with the way main in emacs.c
 309     ;; does things.
 310     (while (and (not done) args)
 311       (let ((longopts '(("--no-init-file") ("--no-site-file") ("--user")
 312                         ("--debug-init")))
 313             (argi (car args))
 314             (argval nil))
 315         (if (string-match "=" argi)
 316             (setq argval (substring argi (match-end 0))
 317                   argi (substring argi 0 (match-beginning 0))))
 318         (let ((completion (try-completion argi longopts)))
 319           (if (eq completion t)
 320               (setq argi (substring argi 1))
 321             (if (stringp completion)
 322                 (let ((elt (assoc completion longopts)))
 323                   (or elt
 324                       (error "Option `%s' is ambiguous" argi))
 325                   (setq argi (substring (car elt) 1))))))
 326         (cond
 327          ((or (string-equal argi "-q")
 328               (string-equal argi "-no-init-file"))
 329           (setq init-file-user nil
 330                 args (cdr args)))
 331          ((or (string-equal argi "-u")
 332               (string-equal argi "-user"))
 333           (or argval
 334               (setq argval (car args)
 335                     args (cdr args)))
 336           (setq init-file-user argval
 337                 argval nil
 338                 args (cdr args)))
 339          ((string-equal argi "-no-site-file")
 340           (setq site-run-file nil
 341                 args (cdr args)))
 342          ((string-equal argi "-debug-init")
 343           (setq init-file-debug t
 344                 args (cdr args)))
 345          (t (setq done t)))
 346         ;; Was argval set but not used?
 347         (and argval
 348              (error "Option `%s' doesn't allow an argument" argi))))
 349
 350     ;; Re-attach the program name to the front of the arg list.
 351     (setcdr command-line-args args))
 352
 353   ;; Under X Windows, this creates the X frame and deletes the terminal frame.
 354   (if (fboundp 'face-initialize)
 355       (face-initialize))
 356   (if (fboundp 'frame-initialize)
 357       (frame-initialize))
 358   ;; If frame was created with a menu bar, set menu-bar-mode on.
 359   (if (and (eq window-system 'x)
 360            (> (cdr (assq 'menu-bar-lines (frame-parameters))) 0))
 361       (menu-bar-mode t))
 362
 363   (run-hooks 'before-init-hook)
 364
 365   ;; Run the site-start library if it exists.  The point of this file is
 366   ;; that it is run before .emacs.  There is no point in doing this after
 367   ;; .emacs; that is useless.
 368   (if site-run-file
 369       (load site-run-file t t))
 370
 371   ;; Sites should not disable this.  Only individuals should disable
 372   ;; the startup message.
 373   (setq inhibit-startup-message nil)
 374
 375   ;; Load that user's init file, or the default one, or none.
 376   (let (debug-on-error-from-init-file
 377         debug-on-error-should-be-set
 378         (debug-on-error-initial
 379          (if (eq init-file-debug t) 'startup init-file-debug)))
 380     (let ((debug-on-error debug-on-error-initial)
 381           ;; This function actually reads the init files.
 382           (inner
 383            (function
 384             (lambda ()
 385               (if init-file-user
 386                   (progn
 387                     (setq user-init-file
 388                           (cond
 389                            ((eq system-type 'ms-dos)
 390                             (concat "~" init-file-user "/_emacs"))
 391                            ((eq system-type 'vax-vms)
 392                             "sys$login:.emacs")
 393                            (t
 394                             (concat "~" init-file-user "/.emacs"))))
 395                     (load user-init-file t t t)
 396                     (or inhibit-default-init
 397                         (let ((inhibit-startup-message nil))
 398                           ;; Users are supposed to be told their rights.
 399                           ;; (Plus how to get help and how to undo.)
 400                           ;; Don't you dare turn this off for anyone
 401                           ;; except yourself.
 402                           (load "default" t t)))))))))
 403       (if init-file-debug
 404           ;; Do this without a condition-case if the user wants to debug.
 405           (funcall inner)
 406         (condition-case error
 407             (progn
 408               (funcall inner)
 409               (setq init-file-had-error nil))
 410           (error (message "Error in init file: %s%s%s"
 411                           (get (car error) 'error-message)
 412                           (if (cdr error) ": " "")
 413                           (mapconcat 'prin1-to-string (cdr error) ", "))
 414                  (setq init-file-had-error t))))
 415       ;; If we can tell that the init file altered debug-on-error,
 416       ;; arrange to preserve the value that it set up.
 417       (or (eq debug-on-error debug-on-error-initial)
 418           (setq debug-on-error-should-be-set t
 419                 debug-on-error-from-init-file debug-on-error)))
 420     (if debug-on-error-should-be-set
 421         (setq debug-on-error debug-on-error-from-init-file)))
 422
 423   (run-hooks 'after-init-hook)
 424
 425   ;; If *scratch* exists and init file didn't change its mode, initialize it.
 426   (if (get-buffer "*scratch*")
 427       (save-excursion
 428         (set-buffer "*scratch*")
 429         (if (eq major-mode 'fundamental-mode)
 430             (funcall initial-major-mode))))
 431   ;; Load library for our terminal type.
 432   ;; User init file can set term-file-prefix to nil to prevent this.
 433   (and term-file-prefix (not noninteractive) (not window-system)
 434        (let ((term (getenv "TERM"))
 435              hyphend)
 436          (while (and term
 437                      (not (load (concat term-file-prefix term) t t)))
 438            ;; Strip off last hyphen and what follows, then try again
 439            (if (setq hyphend (string-match "[-_][^-_]+$" term))
 440                (setq term (substring term 0 hyphend))
 441              (setq term nil)))))
 442
 443   ;; Process the remaining args.
 444   (command-line-1 (cdr command-line-args))
 445
 446   ;; If -batch, terminate after processing the command options.
 447   (if noninteractive (kill-emacs t)))
 448
 449 (defun command-line-1 (command-line-args-left)
 450   (or noninteractive (input-pending-p) init-file-had-error
 451       (and inhibit-startup-echo-area-message
 452            (let ((buffer (get-buffer-create " *temp*")))
 453              (prog1
 454                  (condition-case nil
 455                      (save-excursion
 456                        (set-buffer buffer)
 457                        (insert-file-contents user-init-file)
 458                        (re-search-forward
 459                         (concat
 460                          "([ \t\n]*setq[ \t\n]+"
 461                          "inhibit-startup-echo-area-message[ \t\n]+"
 462                          (regexp-quote
 463                           (prin1-to-string
 464                            (if (string= init-file-user "")
 465                                (user-login-name)
 466                              init-file-user)))
 467                          "[ \t\n]*)")
 468                         nil t))
 469                    (error nil))
 470                (kill-buffer buffer))))
 471       (message (if (eq (key-binding "\C-h\C-p") 'describe-project)
 472                    "For information about the GNU Project and its goals, type C-h C-p."
 473                  (substitute-command-keys
 474                   "For information about the GNU Project and its goals, type \\[describe-project]."))))
 475   (if (null command-line-args-left)
 476       (cond ((and (not inhibit-startup-message) (not noninteractive)
 477                   ;; Don't clobber a non-scratch buffer if init file
 478                   ;; has selected it.
 479                   (string= (buffer-name) "*scratch*")
 480                   (not (input-pending-p)))
 481              ;; If there are no switches to process, we might as well
 482              ;; run this hook now, and there may be some need to do it
 483              ;; before doing any output.
 484              (and term-setup-hook
 485                   (run-hooks 'term-setup-hook))
 486              ;; Don't let the hook be run twice.
 487              (setq term-setup-hook nil)
 488
 489              ;; It's important to notice the user settings before we
 490              ;; display the startup message; otherwise, the settings
 491              ;; won't take effect until the user gives the first
 492              ;; keystroke, and that's distracting.
 493              (if (fboundp 'frame-notice-user-settings)
 494                  (frame-notice-user-settings))
 495
 496              (and window-setup-hook
 497                   (run-hooks 'window-setup-hook))
 498              (setq window-setup-hook nil)
 499              ;; Do this now to avoid an annoying delay if the user
 500              ;; clicks the menu bar during the sit-for.
 501              (precompute-menubar-bindings)
 502              (setq menubar-bindings-done t)
 503              (unwind-protect
 504                  (progn
 505                    (insert (emacs-version)
 506                            "
 507 Copyright (C) 1994 Free Software Foundation, Inc.\n\n")
 508                    ;; If keys have their default meanings,
 509                    ;; use precomputed string to save lots of time.
 510                    (if (and (eq (key-binding "\C-h") 'help-command)
 511                             (eq (key-binding "\C-xu") 'advertised-undo)
 512                             (eq (key-binding "\C-x\C-c") 'save-buffers-kill-emacs)
 513                             (eq (key-binding "\C-h\C-c") 'describe-copying)
 514                             (eq (key-binding "\C-h\C-d") 'describe-distribution)
 515                             (eq (key-binding "\C-h\C-w") 'describe-no-warranty)
 516                             (eq (key-binding "\C-ht") 'help-with-tutorial))
 517                        (insert
 518        "Type C-h for help; C-x u to undo changes.  (`C-' means use CTRL key.)
 519 To kill the Emacs job, type C-x C-c.
 520 Type C-h t for a tutorial on using Emacs.
 521 Type C-h i to enter Info, which you can use to read GNU documentation.
 522
 523 GNU Emacs comes with ABSOLUTELY NO WARRANTY; type C-h C-w for full details.
 524 You may give out copies of Emacs; type C-h C-c to see the conditions.
 525 Type C-h C-d for information on getting the latest version.")
 526                      (insert (substitute-command-keys
 527        "Type \\[help-command] for help; \\[advertised-undo] to undo changes.  (`C-' means use CTRL key.)
 528 To kill the Emacs job, type \\[save-buffers-kill-emacs].
 529 Type \\[help-with-tutorial] for a tutorial on using Emacs.
 530 Type \\[info] to enter Info, which you can use to read GNU documentation.
 531
 532 GNU Emacs comes with ABSOLUTELY NO WARRANTY; type \\[describe-no-warranty] for full details.
 533 You may give out copies of Emacs; type \\[describe-copying] to see the conditions.
 534 Type \\[describe-distribution] for information on getting the latest version.")))
 535                    (set-buffer-modified-p nil)
 536                    (sit-for 120))
 537                (save-excursion
 538                  ;; In case the Emacs server has already selected
 539                  ;; another buffer, erase the one our message is in.
 540                  (set-buffer (get-buffer "*scratch*"))
 541                  (erase-buffer)
 542                  (set-buffer-modified-p nil)))))
 543     (let ((dir command-line-default-directory)
 544           (file-count 0)
 545           first-file-buffer
 546           (line 0))
 547       (while command-line-args-left
 548         (let ((argi (car command-line-args-left))
 549               tem)
 550           (setq command-line-args-left (cdr command-line-args-left))
 551           (cond ((setq tem (assoc argi command-switch-alist))
 552                  (funcall (cdr tem) argi))
 553                 ((or (string-equal argi "-f")  ;what the manual claims
 554                      (string-equal argi "-funcall")
 555                      (string-equal argi "-e")) ; what the source used to say
 556                  (setq tem (intern (car command-line-args-left)))
 557                  (setq command-line-args-left (cdr command-line-args-left))
 558                  (funcall tem))
 559                 ((or (string-equal argi "-l")
 560                      (string-equal argi "-load"))
 561                  (let ((file (car command-line-args-left)))
 562                    ;; Take file from default dir if it exists there;
 563                    ;; otherwise let `load' search for it.
 564                    (if (file-exists-p (expand-file-name file))
 565                        (setq file (expand-file-name file)))
 566                    (load file nil t))
 567                  (setq command-line-args-left (cdr command-line-args-left)))
 568                 ((string-equal argi "-insert")
 569                  (or (stringp (car command-line-args-left))
 570                      (error "filename omitted from `-insert' option"))
 571                  (insert-file-contents (car command-line-args-left))
 572                  (setq command-line-args-left (cdr command-line-args-left)))
 573                 ((string-equal argi "-kill")
 574                  (kill-emacs t))
 575                 ((string-match "^\\+[0-9]+\\'" argi)
 576                  (setq line (string-to-int argi)))
 577                 (t
 578                  ;; We have almost exhausted our options. See if the
 579                  ;; user has made any other command-line options available
 580                  (let ((hooks command-line-functions);; lrs 7/31/89
 581                        (did-hook nil))
 582                    (while (and hooks
 583                                (not (setq did-hook (funcall (car hooks)))))
 584                      (setq hooks (cdr hooks)))
 585                    (if (not did-hook)
 586                        ;; Ok, presume that the argument is a file name
 587                        (progn
 588                          (setq file-count (1+ file-count))
 589                          (cond ((= file-count 1)
 590                                 (setq first-file-buffer
 591                                       (find-file (expand-file-name argi dir))))
 592                                (t
 593                                 (find-file-other-window (expand-file-name argi dir))))
 594                          (or (zerop line)
 595                              (goto-line line))
 596                          (setq line 0))))))))
 597       ;; If 3 or more files visited, and not all visible,
 598       ;; show user what they all are.
 599       (if (> file-count 2)
 600           (or (get-buffer-window first-file-buffer)
 601               (progn (other-window 1)
 602                      (buffer-menu)))))))
 603
 604 ;;; startup.el ends here