| 1 | ;;; startup.el --- process Emacs shell arguments -*- lexical-binding: t -*- |
| 2 | |
| 3 | ;; Copyright (C) 1985-1986, 1992, 1994-2014 Free Software Foundation, Inc. |
| 4 | |
| 5 | ;; Maintainer: emacs-devel@gnu.org |
| 6 | ;; Keywords: internal |
| 7 | ;; Package: emacs |
| 8 | |
| 9 | ;; This file is part of GNU Emacs. |
| 10 | |
| 11 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
| 12 | ;; it under the terms of the GNU General Public License as published by |
| 13 | ;; the Free Software Foundation, either version 3 of the License, or |
| 14 | ;; (at your option) any later version. |
| 15 | |
| 16 | ;; GNU Emacs is distributed in the hope that it will be useful, |
| 17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | ;; GNU General Public License for more details. |
| 20 | |
| 21 | ;; You should have received a copy of the GNU General Public License |
| 22 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
| 23 | |
| 24 | ;;; Commentary: |
| 25 | |
| 26 | ;; This file parses the command line and gets Emacs running. Options |
| 27 | ;; on the command line are handled in precedence order. For priorities |
| 28 | ;; see the structure standard_args in the emacs.c file. |
| 29 | |
| 30 | ;;; Code: |
| 31 | |
| 32 | (setq top-level '(normal-top-level)) |
| 33 | |
| 34 | (defvar command-line-processed nil |
| 35 | "Non-nil once command line has been processed.") |
| 36 | |
| 37 | (defgroup initialization nil |
| 38 | "Emacs start-up procedure." |
| 39 | :group 'environment) |
| 40 | |
| 41 | (defcustom initial-buffer-choice nil |
| 42 | "Buffer to show after starting Emacs. |
| 43 | If the value is nil and `inhibit-startup-screen' is nil, show the |
| 44 | startup screen. If the value is a string, switch to a buffer |
| 45 | visiting the file or directory that the string specifies. If the |
| 46 | value is a function, call it with no arguments and switch to the buffer |
| 47 | that it returns. If t, open the `*scratch*' buffer. |
| 48 | |
| 49 | If you use `emacsclient' with no target file, then it obeys any |
| 50 | string or function value that this variable has." |
| 51 | :type '(choice |
| 52 | (const :tag "Startup screen" nil) |
| 53 | (directory :tag "Directory" :value "~/") |
| 54 | (file :tag "File" :value "~/.emacs") |
| 55 | ;; Note sure about hard-coding this as an option... |
| 56 | (const :tag "Remember Mode notes buffer" remember-notes) |
| 57 | (function :tag "Function") |
| 58 | (const :tag "Lisp scratch buffer" t)) |
| 59 | :version "23.1" |
| 60 | :group 'initialization) |
| 61 | |
| 62 | (defcustom inhibit-startup-screen nil |
| 63 | "Non-nil inhibits the startup screen. |
| 64 | |
| 65 | This is for use in your personal init file (but NOT site-start.el), |
| 66 | once you are familiar with the contents of the startup screen." |
| 67 | :type 'boolean |
| 68 | :group 'initialization) |
| 69 | |
| 70 | (defvaralias 'inhibit-splash-screen 'inhibit-startup-screen) |
| 71 | (defvaralias 'inhibit-startup-message 'inhibit-startup-screen) |
| 72 | |
| 73 | (defvar startup-screen-inhibit-startup-screen nil) |
| 74 | |
| 75 | ;; FIXME? Why does this get such weirdly extreme treatment, when the |
| 76 | ;; more important inhibit-startup-screen does not. |
| 77 | (defcustom inhibit-startup-echo-area-message nil |
| 78 | "Non-nil inhibits the initial startup echo area message. |
| 79 | Setting this variable takes effect |
| 80 | only if you do it with the customization buffer |
| 81 | or if your init file contains a line of this form: |
| 82 | (setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\") |
| 83 | If your init file is byte-compiled, use the following form |
| 84 | instead: |
| 85 | (eval '(setq inhibit-startup-echo-area-message \"YOUR-USER-NAME\")) |
| 86 | Thus, someone else using a copy of your init file will see the |
| 87 | startup message unless he personally acts to inhibit it." |
| 88 | :type '(choice (const :tag "Don't inhibit") |
| 89 | (string :tag "Enter your user name, to inhibit")) |
| 90 | :group 'initialization) |
| 91 | |
| 92 | (defcustom inhibit-default-init nil |
| 93 | "Non-nil inhibits loading the `default' library." |
| 94 | :type 'boolean |
| 95 | :group 'initialization) |
| 96 | |
| 97 | (defcustom inhibit-startup-buffer-menu nil |
| 98 | "Non-nil inhibits display of buffer list when more than 2 files are loaded." |
| 99 | :type 'boolean |
| 100 | :group 'initialization) |
| 101 | |
| 102 | (defvar command-switch-alist nil |
| 103 | "Alist of command-line switches. |
| 104 | Elements look like (SWITCH-STRING . HANDLER-FUNCTION). |
| 105 | HANDLER-FUNCTION receives the switch string as its sole argument; |
| 106 | the remaining command-line args are in the variable `command-line-args-left'.") |
| 107 | |
| 108 | (defvar command-line-args-left nil |
| 109 | "List of command-line args not yet processed.") |
| 110 | |
| 111 | (defvaralias 'argv 'command-line-args-left |
| 112 | "List of command-line args not yet processed. |
| 113 | This is a convenience alias, so that one can write \(pop argv\) |
| 114 | inside of --eval command line arguments in order to access |
| 115 | following arguments.") |
| 116 | (internal-make-var-non-special 'argv) |
| 117 | |
| 118 | (defvar argi nil |
| 119 | "Current command-line argument.") |
| 120 | (internal-make-var-non-special 'argi) |
| 121 | |
| 122 | (defvar command-line-functions nil ;; lrs 7/31/89 |
| 123 | "List of functions to process unrecognized command-line arguments. |
| 124 | Each function should access the dynamically bound variables |
| 125 | `argi' (the current argument) and `command-line-args-left' (the remaining |
| 126 | arguments). The function should return non-nil only if it recognizes and |
| 127 | processes `argi'. If it does so, it may consume successive arguments by |
| 128 | altering `command-line-args-left' to remove them.") |
| 129 | |
| 130 | (defvar command-line-default-directory nil |
| 131 | "Default directory to use for command line arguments. |
| 132 | This is normally copied from `default-directory' when Emacs starts.") |
| 133 | |
| 134 | ;; This is here, rather than in x-win.el, so that we can ignore these |
| 135 | ;; options when we are not using X. |
| 136 | (defconst command-line-x-option-alist |
| 137 | '(("-bw" 1 x-handle-numeric-switch border-width) |
| 138 | ("-d" 1 x-handle-display) |
| 139 | ("-display" 1 x-handle-display) |
| 140 | ("-name" 1 x-handle-name-switch) |
| 141 | ("-title" 1 x-handle-switch title) |
| 142 | ("-T" 1 x-handle-switch title) |
| 143 | ("-r" 0 x-handle-switch reverse t) |
| 144 | ("-rv" 0 x-handle-switch reverse t) |
| 145 | ("-reverse" 0 x-handle-switch reverse t) |
| 146 | ("-reverse-video" 0 x-handle-switch reverse t) |
| 147 | ("-fn" 1 x-handle-switch font) |
| 148 | ("-font" 1 x-handle-switch font) |
| 149 | ("-fs" 0 x-handle-initial-switch fullscreen fullboth) |
| 150 | ("-fw" 0 x-handle-initial-switch fullscreen fullwidth) |
| 151 | ("-fh" 0 x-handle-initial-switch fullscreen fullheight) |
| 152 | ("-mm" 0 x-handle-initial-switch fullscreen maximized) |
| 153 | ("-ib" 1 x-handle-numeric-switch internal-border-width) |
| 154 | ("-g" 1 x-handle-geometry) |
| 155 | ("-lsp" 1 x-handle-numeric-switch line-spacing) |
| 156 | ("-geometry" 1 x-handle-geometry) |
| 157 | ("-fg" 1 x-handle-switch foreground-color) |
| 158 | ("-foreground" 1 x-handle-switch foreground-color) |
| 159 | ("-bg" 1 x-handle-switch background-color) |
| 160 | ("-background" 1 x-handle-switch background-color) |
| 161 | ("-ms" 1 x-handle-switch mouse-color) |
| 162 | ("-nbi" 0 x-handle-switch icon-type nil) |
| 163 | ("-iconic" 0 x-handle-iconic) |
| 164 | ("-xrm" 1 x-handle-xrm-switch) |
| 165 | ("-cr" 1 x-handle-switch cursor-color) |
| 166 | ("-vb" 0 x-handle-switch vertical-scroll-bars t) |
| 167 | ("-hb" 0 x-handle-switch horizontal-scroll-bars t) |
| 168 | ("-bd" 1 x-handle-switch) |
| 169 | ("--border-width" 1 x-handle-numeric-switch border-width) |
| 170 | ("--display" 1 x-handle-display) |
| 171 | ("--name" 1 x-handle-name-switch) |
| 172 | ("--title" 1 x-handle-switch title) |
| 173 | ("--reverse-video" 0 x-handle-switch reverse t) |
| 174 | ("--font" 1 x-handle-switch font) |
| 175 | ("--fullscreen" 0 x-handle-initial-switch fullscreen fullboth) |
| 176 | ("--fullwidth" 0 x-handle-initial-switch fullscreen fullwidth) |
| 177 | ("--fullheight" 0 x-handle-initial-switch fullscreen fullheight) |
| 178 | ("--maximized" 0 x-handle-initial-switch fullscreen maximized) |
| 179 | ("--internal-border" 1 x-handle-numeric-switch internal-border-width) |
| 180 | ("--geometry" 1 x-handle-geometry) |
| 181 | ("--foreground-color" 1 x-handle-switch foreground-color) |
| 182 | ("--background-color" 1 x-handle-switch background-color) |
| 183 | ("--mouse-color" 1 x-handle-switch mouse-color) |
| 184 | ("--no-bitmap-icon" 0 x-handle-no-bitmap-icon) |
| 185 | ("--iconic" 0 x-handle-iconic) |
| 186 | ("--xrm" 1 x-handle-xrm-switch) |
| 187 | ("--cursor-color" 1 x-handle-switch cursor-color) |
| 188 | ("--vertical-scroll-bars" 0 x-handle-switch vertical-scroll-bars t) |
| 189 | ("--line-spacing" 1 x-handle-numeric-switch line-spacing) |
| 190 | ("--border-color" 1 x-handle-switch border-color) |
| 191 | ("--smid" 1 x-handle-smid) |
| 192 | ("--parent-id" 1 x-handle-parent-id)) |
| 193 | "Alist of X Windows options. |
| 194 | Each element has the form |
| 195 | (NAME NUMARGS HANDLER FRAME-PARAM VALUE) |
| 196 | where NAME is the option name string, NUMARGS is the number of arguments |
| 197 | that the option accepts, HANDLER is a function to call to handle the option. |
| 198 | FRAME-PARAM (optional) is the frame parameter this option specifies, |
| 199 | and VALUE is the value which is given to that frame parameter |
| 200 | \(most options use the argument for this, so VALUE is not present).") |
| 201 | |
| 202 | (defconst command-line-ns-option-alist |
| 203 | '(("-NSAutoLaunch" 1 ns-ignore-1-arg) |
| 204 | ("-NXAutoLaunch" 1 ns-ignore-1-arg) |
| 205 | ("-macosx" 0 ignore) |
| 206 | ("-NSHost" 1 ns-ignore-1-arg) |
| 207 | ("-_NSMachLaunch" 1 ns-ignore-1-arg) |
| 208 | ("-MachLaunch" 1 ns-ignore-1-arg) |
| 209 | ("-NXOpen" 1 ns-ignore-1-arg) |
| 210 | ("-NSOpen" 1 ns-handle-nxopen) |
| 211 | ("-NXOpenTemp" 1 ns-ignore-1-arg) |
| 212 | ("-NSOpenTemp" 1 ns-handle-nxopentemp) |
| 213 | ("-GSFilePath" 1 ns-handle-nxopen) |
| 214 | ;;("-bw" . x-handle-numeric-switch) |
| 215 | ;;("-d" . x-handle-display) |
| 216 | ;;("-display" . x-handle-display) |
| 217 | ("-name" 1 x-handle-name-switch) |
| 218 | ("-title" 1 x-handle-switch title) |
| 219 | ("-T" 1 x-handle-switch title) |
| 220 | ("-r" 0 x-handle-switch reverse t) |
| 221 | ("-rv" 0 x-handle-switch reverse t) |
| 222 | ("-reverse" 0 x-handle-switch reverse t) |
| 223 | ("-fn" 1 x-handle-switch font) |
| 224 | ("-font" 1 x-handle-switch font) |
| 225 | ("-ib" 1 x-handle-numeric-switch internal-border-width) |
| 226 | ("-g" 1 x-handle-geometry) |
| 227 | ("-geometry" 1 x-handle-geometry) |
| 228 | ("-fg" 1 x-handle-switch foreground-color) |
| 229 | ("-foreground" 1 x-handle-switch foreground-color) |
| 230 | ("-bg" 1 x-handle-switch background-color) |
| 231 | ("-background" 1 x-handle-switch background-color) |
| 232 | ; ("-ms" 1 x-handle-switch mouse-color) |
| 233 | ("-itype" 0 x-handle-switch icon-type t) |
| 234 | ("-i" 0 x-handle-switch icon-type t) |
| 235 | ("-iconic" 0 x-handle-iconic icon-type t) |
| 236 | ;;("-xrm" . x-handle-xrm-switch) |
| 237 | ("-cr" 1 x-handle-switch cursor-color) |
| 238 | ("-vb" 0 x-handle-switch vertical-scroll-bars t) |
| 239 | ("-hb" 0 x-handle-switch horizontal-scroll-bars t) |
| 240 | ("-bd" 1 x-handle-switch) |
| 241 | ;; ("--border-width" 1 x-handle-numeric-switch border-width) |
| 242 | ;; ("--display" 1 ns-handle-display) |
| 243 | ("--name" 1 x-handle-name-switch) |
| 244 | ("--title" 1 x-handle-switch title) |
| 245 | ("--reverse-video" 0 x-handle-switch reverse t) |
| 246 | ("--font" 1 x-handle-switch font) |
| 247 | ("--internal-border" 1 x-handle-numeric-switch internal-border-width) |
| 248 | ;; ("--geometry" 1 ns-handle-geometry) |
| 249 | ("--foreground-color" 1 x-handle-switch foreground-color) |
| 250 | ("--background-color" 1 x-handle-switch background-color) |
| 251 | ("--mouse-color" 1 x-handle-switch mouse-color) |
| 252 | ("--icon-type" 0 x-handle-switch icon-type t) |
| 253 | ("--iconic" 0 x-handle-iconic) |
| 254 | ;; ("--xrm" 1 ns-handle-xrm-switch) |
| 255 | ("--cursor-color" 1 x-handle-switch cursor-color) |
| 256 | ("--vertical-scroll-bars" 0 x-handle-switch vertical-scroll-bars t) |
| 257 | ("--border-color" 1 x-handle-switch border-width)) |
| 258 | "Alist of NS options. |
| 259 | Each element has the form |
| 260 | (NAME NUMARGS HANDLER FRAME-PARAM VALUE) |
| 261 | where NAME is the option name string, NUMARGS is the number of arguments |
| 262 | that the option accepts, HANDLER is a function to call to handle the option. |
| 263 | FRAME-PARAM (optional) is the frame parameter this option specifies, |
| 264 | and VALUE is the value which is given to that frame parameter |
| 265 | \(most options use the argument for this, so VALUE is not present).") |
| 266 | |
| 267 | |
| 268 | (defvar before-init-hook nil |
| 269 | "Normal hook run after handling urgent options but before loading init files.") |
| 270 | |
| 271 | (defvar after-init-hook nil |
| 272 | "Normal hook run after initializing the Emacs session. |
| 273 | It is run after Emacs loads the init file, `default' library, the |
| 274 | abbrevs file, and additional Lisp packages (if any), and setting |
| 275 | the value of `after-init-time'. |
| 276 | |
| 277 | There is no `condition-case' around the running of this hook; |
| 278 | therefore, if `debug-on-error' is non-nil, an error in one of |
| 279 | these functions will invoke the debugger.") |
| 280 | |
| 281 | (defvar emacs-startup-hook nil |
| 282 | "Normal hook run after loading init files and handling the command line.") |
| 283 | |
| 284 | (defvar term-setup-hook nil |
| 285 | "Normal hook run immediately after `emacs-startup-hook'. |
| 286 | In new code, there is no reason to use this instead of `emacs-startup-hook'. |
| 287 | If you want to execute terminal-specific Lisp code, for example |
| 288 | to override the definitions made by the terminal-specific file, |
| 289 | see `tty-setup-hook'.") |
| 290 | |
| 291 | (make-obsolete-variable 'term-setup-hook |
| 292 | "use either `emacs-startup-hook' or \ |
| 293 | `tty-setup-hook' instead." "24.4") |
| 294 | |
| 295 | (defvar inhibit-startup-hooks nil |
| 296 | "Non-nil means don't run some startup hooks, because we already did. |
| 297 | Currently this applies to: `emacs-startup-hook', `term-setup-hook', |
| 298 | and `window-setup-hook'.") |
| 299 | |
| 300 | (defvar keyboard-type nil |
| 301 | "The brand of keyboard you are using. |
| 302 | This variable is used to define the proper function and keypad |
| 303 | keys for use under X. It is used in a fashion analogous to the |
| 304 | environment variable TERM.") |
| 305 | |
| 306 | (defvar window-setup-hook nil |
| 307 | "Normal hook run after loading init files and handling the command line. |
| 308 | This is very similar to `emacs-startup-hook'. The only difference |
| 309 | is that this hook runs after frame parameters have been set up in |
| 310 | response to any settings from your init file. Unless this matters |
| 311 | to you, use `emacs-startup-hook' instead. (The name of this hook |
| 312 | is due to historical reasons, and does not reflect its purpose very well.)") |
| 313 | |
| 314 | (defcustom initial-major-mode 'lisp-interaction-mode |
| 315 | "Major mode command symbol to use for the initial `*scratch*' buffer." |
| 316 | :type 'function |
| 317 | :group 'initialization) |
| 318 | |
| 319 | (defvar init-file-user nil |
| 320 | "Identity of user whose init file is or was read. |
| 321 | The value is nil if `-q' or `--no-init-file' was specified, |
| 322 | meaning do not load any init file. |
| 323 | |
| 324 | Otherwise, the value may be an empty string, meaning |
| 325 | use the init file for the user who originally logged in, |
| 326 | or it may be a string containing a user's name meaning |
| 327 | use that person's init file. |
| 328 | |
| 329 | In either of the latter cases, `(concat \"~\" init-file-user \"/\")' |
| 330 | evaluates to the name of the directory where the init file was |
| 331 | looked for. |
| 332 | |
| 333 | Setting `init-file-user' does not prevent Emacs from loading |
| 334 | `site-start.el'. The only way to do that is to use `--no-site-file'.") |
| 335 | |
| 336 | (defcustom site-run-file (purecopy "site-start") |
| 337 | "File containing site-wide run-time initializations. |
| 338 | This file is loaded at run-time before `~/.emacs'. It contains inits |
| 339 | that need to be in place for the entire site, but which, due to their |
| 340 | higher incidence of change, don't make sense to load into Emacs's |
| 341 | dumped image. Thus, the run-time load order is: 1. file described in |
| 342 | this variable, if non-nil; 2. `~/.emacs'; 3. `default.el'. |
| 343 | |
| 344 | Don't use the `site-start.el' file for things some users may not like. |
| 345 | Put them in `default.el' instead, so that users can more easily |
| 346 | override them. Users can prevent loading `default.el' with the `-q' |
| 347 | option or by setting `inhibit-default-init' in their own init files, |
| 348 | but inhibiting `site-start.el' requires `--no-site-file', which |
| 349 | is less convenient. |
| 350 | |
| 351 | This variable is defined for customization so as to make |
| 352 | it visible in the relevant context. However, actually customizing it |
| 353 | is not allowed, since it would not work anyway. The only way to set |
| 354 | this variable usefully is to set it while building and dumping Emacs." |
| 355 | :type '(choice (const :tag "none" nil) string) |
| 356 | :group 'initialization |
| 357 | :initialize 'custom-initialize-default |
| 358 | :set (lambda (_variable _value) |
| 359 | (error "Customizing `site-run-file' does not work"))) |
| 360 | |
| 361 | (defcustom mail-host-address nil |
| 362 | "Name of this machine, for purposes of naming users. |
| 363 | If non-nil, Emacs uses this instead of `system-name' when constructing |
| 364 | email addresses." |
| 365 | :type '(choice (const nil) string) |
| 366 | :group 'mail) |
| 367 | |
| 368 | (defcustom user-mail-address (if command-line-processed |
| 369 | (or (getenv "EMAIL") |
| 370 | (concat (user-login-name) "@" |
| 371 | (or mail-host-address |
| 372 | (system-name)))) |
| 373 | ;; Empty string means "not set yet". |
| 374 | "") |
| 375 | "Full mailing address of this user. |
| 376 | This is initialized with environment variable `EMAIL' or, as a |
| 377 | fallback, using `mail-host-address'. This is done after your |
| 378 | init file is read, in case it sets `mail-host-address'." |
| 379 | :type 'string |
| 380 | :group 'mail) |
| 381 | |
| 382 | (defcustom auto-save-list-file-prefix |
| 383 | (cond ((eq system-type 'ms-dos) |
| 384 | ;; MS-DOS cannot have initial dot, and allows only 8.3 names |
| 385 | (concat user-emacs-directory "auto-save.list/_s")) |
| 386 | (t |
| 387 | (concat user-emacs-directory "auto-save-list/.saves-"))) |
| 388 | "Prefix for generating `auto-save-list-file-name'. |
| 389 | This is used after reading your init file to initialize |
| 390 | `auto-save-list-file-name', by appending Emacs's pid and the system name, |
| 391 | if you have not already set `auto-save-list-file-name' yourself. |
| 392 | Directories in the prefix will be created if necessary. |
| 393 | Set this to nil if you want to prevent `auto-save-list-file-name' |
| 394 | from being initialized." |
| 395 | :type '(choice (const :tag "Don't record a session's auto save list" nil) |
| 396 | string) |
| 397 | :group 'auto-save) |
| 398 | |
| 399 | (defvar emacs-basic-display nil) |
| 400 | |
| 401 | (defvar init-file-debug nil) |
| 402 | |
| 403 | (defvar init-file-had-error nil |
| 404 | "Non-nil if there was an error loading the user's init file.") |
| 405 | |
| 406 | (defvar normal-top-level-add-subdirs-inode-list nil) |
| 407 | |
| 408 | (defvar no-blinking-cursor nil) |
| 409 | |
| 410 | (defvar pure-space-overflow nil |
| 411 | "Non-nil if building Emacs overflowed pure space.") |
| 412 | |
| 413 | (defvar pure-space-overflow-message (purecopy "\ |
| 414 | Warning Warning!!! Pure space overflow !!!Warning Warning |
| 415 | \(See the node Pure Storage in the Lisp manual for details.)\n")) |
| 416 | |
| 417 | (defcustom tutorial-directory |
| 418 | (file-name-as-directory (expand-file-name "tutorials" data-directory)) |
| 419 | "Directory containing the Emacs TUTORIAL files." |
| 420 | :group 'installation |
| 421 | :type 'directory |
| 422 | :initialize 'custom-initialize-delay) |
| 423 | |
| 424 | (defvar package--builtin-versions |
| 425 | ;; Mostly populated by loaddefs.el via autoload-builtin-package-versions. |
| 426 | (purecopy `((emacs . ,(version-to-list emacs-version)))) |
| 427 | "Alist giving the version of each versioned builtin package. |
| 428 | I.e. each element of the list is of the form (NAME . VERSION) where |
| 429 | NAME is the package name as a symbol, and VERSION is its version |
| 430 | as a list.") |
| 431 | |
| 432 | (defun package--description-file (dir) |
| 433 | (concat (let ((subdir (file-name-nondirectory |
| 434 | (directory-file-name dir)))) |
| 435 | (if (string-match "\\([^.].*?\\)-\\([0-9]+\\(?:[.][0-9]+\\|\\(?:pre\\|beta\\|alpha\\)[0-9]+\\)*\\)" subdir) |
| 436 | (match-string 1 subdir) subdir)) |
| 437 | "-pkg.el")) |
| 438 | |
| 439 | (defun normal-top-level-add-subdirs-to-load-path () |
| 440 | "Add all subdirectories of `default-directory' to `load-path'. |
| 441 | More precisely, this uses only the subdirectories whose names |
| 442 | start with letters or digits; it excludes any subdirectory named `RCS' |
| 443 | or `CVS', and any subdirectory that contains a file named `.nosearch'." |
| 444 | (let (dirs |
| 445 | attrs |
| 446 | (pending (list default-directory))) |
| 447 | ;; This loop does a breadth-first tree walk on DIR's subtree, |
| 448 | ;; putting each subdir into DIRS as its contents are examined. |
| 449 | (while pending |
| 450 | (push (pop pending) dirs) |
| 451 | (let* ((this-dir (car dirs)) |
| 452 | (contents (directory-files this-dir)) |
| 453 | (default-directory this-dir) |
| 454 | (canonicalized (if (fboundp 'w32-untranslated-canonical-name) |
| 455 | (w32-untranslated-canonical-name this-dir)))) |
| 456 | ;; The Windows version doesn't report meaningful inode numbers, so |
| 457 | ;; use the canonicalized absolute file name of the directory instead. |
| 458 | (setq attrs (or canonicalized |
| 459 | (nthcdr 10 (file-attributes this-dir)))) |
| 460 | (unless (member attrs normal-top-level-add-subdirs-inode-list) |
| 461 | (push attrs normal-top-level-add-subdirs-inode-list) |
| 462 | (dolist (file contents) |
| 463 | (and (string-match "\\`[[:alnum:]]" file) |
| 464 | ;; The lower-case variants of RCS and CVS are for DOS/Windows. |
| 465 | (not (member file '("RCS" "CVS" "rcs" "cvs"))) |
| 466 | ;; Avoid doing a `stat' when it isn't necessary because |
| 467 | ;; that can cause trouble when an NFS server is down. |
| 468 | (not (string-match "\\.elc?\\'" file)) |
| 469 | (file-directory-p file) |
| 470 | (let ((expanded (expand-file-name file))) |
| 471 | (or (file-exists-p (expand-file-name ".nosearch" expanded)) |
| 472 | (setq pending (nconc pending (list expanded)))))))))) |
| 473 | (normal-top-level-add-to-load-path (cdr (nreverse dirs))))) |
| 474 | |
| 475 | (defun normal-top-level-add-to-load-path (dirs) |
| 476 | "This function is called from a subdirs.el file. |
| 477 | It assumes that `default-directory' is the directory in which the |
| 478 | subdirs.el file exists, and it adds to `load-path' the subdirs of |
| 479 | that directory as specified in DIRS. Normally the elements of |
| 480 | DIRS are relative." |
| 481 | (let ((tail load-path) |
| 482 | (thisdir (directory-file-name default-directory))) |
| 483 | (while (and tail |
| 484 | ;;Don't go all the way to the nil terminator. |
| 485 | (cdr tail) |
| 486 | (not (equal thisdir (car tail))) |
| 487 | (not (and (memq system-type '(ms-dos windows-nt)) |
| 488 | (equal (downcase thisdir) (downcase (car tail)))))) |
| 489 | (setq tail (cdr tail))) |
| 490 | ;;Splice the new section in. |
| 491 | (when tail |
| 492 | (setcdr tail (append (mapcar 'expand-file-name dirs) (cdr tail)))))) |
| 493 | |
| 494 | (defun normal-top-level () |
| 495 | "Emacs calls this function when it first starts up. |
| 496 | It sets `command-line-processed', processes the command-line, |
| 497 | reads the initialization files, etc. |
| 498 | It is the default value of the variable `top-level'." |
| 499 | (if command-line-processed |
| 500 | (message "Back to top level.") |
| 501 | (setq command-line-processed t) |
| 502 | |
| 503 | ;; Look in each dir in load-path for a subdirs.el file. If we |
| 504 | ;; find one, load it, which will add the appropriate subdirs of |
| 505 | ;; that dir into load-path. This needs to be done before setting |
| 506 | ;; the locale environment, because the latter might need to load |
| 507 | ;; some support files. |
| 508 | ;; Look for a leim-list.el file too. Loading it will register |
| 509 | ;; available input methods. |
| 510 | (let ((tail load-path) |
| 511 | (lispdir (expand-file-name "../lisp" data-directory)) |
| 512 | dir) |
| 513 | (while tail |
| 514 | (setq dir (car tail)) |
| 515 | (let ((default-directory dir)) |
| 516 | (load (expand-file-name "subdirs.el") t t t)) |
| 517 | ;; Do not scan standard directories that won't contain a leim-list.el. |
| 518 | ;; http://lists.gnu.org/archive/html/emacs-devel/2009-10/msg00502.html |
| 519 | ;; (Except the preloaded one in lisp/leim.) |
| 520 | (or (string-prefix-p lispdir dir) |
| 521 | (let ((default-directory dir)) |
| 522 | (load (expand-file-name "leim-list.el") t t t))) |
| 523 | ;; We don't use a dolist loop and we put this "setq-cdr" command at |
| 524 | ;; the end, because the subdirs.el files may add elements to the end |
| 525 | ;; of load-path and we want to take it into account. |
| 526 | (setq tail (cdr tail)))) |
| 527 | |
| 528 | ;; Set the default strings to display in mode line for end-of-line |
| 529 | ;; formats that aren't native to this platform. This should be |
| 530 | ;; done before calling set-locale-environment, as the latter might |
| 531 | ;; use these mnemonics. |
| 532 | (cond |
| 533 | ((memq system-type '(ms-dos windows-nt)) |
| 534 | (setq eol-mnemonic-unix "(Unix)" |
| 535 | eol-mnemonic-mac "(Mac)")) |
| 536 | (t ; this is for Unix/GNU/Linux systems |
| 537 | (setq eol-mnemonic-dos "(DOS)" |
| 538 | eol-mnemonic-mac "(Mac)"))) |
| 539 | |
| 540 | (set-locale-environment nil) |
| 541 | ;; Decode all default-directory's (probably, only *scratch* exists |
| 542 | ;; at this point). default-directory of *scratch* is the basis |
| 543 | ;; for many other file-name variables and directory lists, so it |
| 544 | ;; is important to decode it ASAP. |
| 545 | (when locale-coding-system |
| 546 | (let ((coding (if (eq system-type 'windows-nt) |
| 547 | ;; MS-Windows build converts all file names to |
| 548 | ;; UTF-8 during startup. |
| 549 | 'utf-8 |
| 550 | locale-coding-system))) |
| 551 | (save-excursion |
| 552 | (dolist (elt (buffer-list)) |
| 553 | (set-buffer elt) |
| 554 | (if default-directory |
| 555 | (setq default-directory |
| 556 | (decode-coding-string default-directory coding t))))) |
| 557 | |
| 558 | ;; Decode all the important variables and directory lists, now |
| 559 | ;; that we know the locale's encoding. This is because the |
| 560 | ;; values of these variables are until here unibyte undecoded |
| 561 | ;; strings created by build_unibyte_string. data-directory in |
| 562 | ;; particular is used to construct many other standard |
| 563 | ;; directory names, so it must be decoded ASAP. Note that |
| 564 | ;; charset-map-path cannot be decoded here, since we could |
| 565 | ;; then be trapped in infinite recursion below, when we load |
| 566 | ;; subdirs.el, because encoding a directory name might need to |
| 567 | ;; load a charset map, which will want to encode |
| 568 | ;; charset-map-path, which will want to load the same charset |
| 569 | ;; map... So decoding of charset-map-path is delayed until |
| 570 | ;; further down below. |
| 571 | (dolist (pathsym '(load-path exec-path)) |
| 572 | (let ((path (symbol-value pathsym))) |
| 573 | (if (listp path) |
| 574 | (set pathsym (mapcar (lambda (dir) |
| 575 | (decode-coding-string dir coding t)) |
| 576 | path))))) |
| 577 | (dolist (filesym '(data-directory doc-directory exec-directory |
| 578 | installation-directory |
| 579 | invocation-directory invocation-name |
| 580 | source-directory |
| 581 | shared-game-score-directory)) |
| 582 | (let ((file (symbol-value filesym))) |
| 583 | (if (stringp file) |
| 584 | (set filesym (decode-coding-string file coding t))))))) |
| 585 | |
| 586 | (let ((dir default-directory)) |
| 587 | (with-current-buffer "*Messages*" |
| 588 | (messages-buffer-mode) |
| 589 | ;; Make it easy to do like "tail -f". |
| 590 | (set (make-local-variable 'window-point-insertion-type) t) |
| 591 | ;; Give *Messages* the same default-directory as *scratch*, |
| 592 | ;; just to keep things predictable. |
| 593 | (setq default-directory dir))) |
| 594 | ;; `user-full-name' is now known; reset its standard-value here. |
| 595 | (put 'user-full-name 'standard-value |
| 596 | (list (default-value 'user-full-name))) |
| 597 | ;; If the PWD environment variable isn't accurate, delete it. |
| 598 | (let ((pwd (getenv "PWD"))) |
| 599 | (and (stringp pwd) |
| 600 | ;; Use FOO/., so that if FOO is a symlink, file-attributes |
| 601 | ;; describes the directory linked to, not FOO itself. |
| 602 | (or (equal (file-attributes |
| 603 | (concat (file-name-as-directory pwd) ".")) |
| 604 | (file-attributes |
| 605 | (concat (file-name-as-directory default-directory) |
| 606 | "."))) |
| 607 | (setq process-environment |
| 608 | (delete (concat "PWD=" pwd) |
| 609 | process-environment))))) |
| 610 | ;; Now, that other directories were searched, and any charsets we |
| 611 | ;; need for encoding them are already loaded, we are ready to |
| 612 | ;; decode charset-map-path. |
| 613 | (if (listp charset-map-path) |
| 614 | (let ((coding (if (eq system-type 'windows-nt) |
| 615 | 'utf-8 |
| 616 | locale-coding-system))) |
| 617 | (setq charset-map-path |
| 618 | (mapcar (lambda (dir) |
| 619 | (decode-coding-string dir coding t)) |
| 620 | charset-map-path)))) |
| 621 | (setq default-directory (abbreviate-file-name default-directory)) |
| 622 | (let ((old-face-font-rescale-alist face-font-rescale-alist)) |
| 623 | (unwind-protect |
| 624 | (command-line) |
| 625 | ;; Do this again, in case .emacs defined more abbreviations. |
| 626 | (setq default-directory (abbreviate-file-name default-directory)) |
| 627 | ;; Specify the file for recording all the auto save files of this session. |
| 628 | ;; This is used by recover-session. |
| 629 | (or auto-save-list-file-name |
| 630 | (and auto-save-list-file-prefix |
| 631 | (setq auto-save-list-file-name |
| 632 | ;; Under MS-DOS our PID is almost always reused between |
| 633 | ;; Emacs invocations. We need something more unique. |
| 634 | (cond ((eq system-type 'ms-dos) |
| 635 | ;; We are going to access the auto-save |
| 636 | ;; directory, so make sure it exists. |
| 637 | (make-directory |
| 638 | (file-name-directory auto-save-list-file-prefix) |
| 639 | t) |
| 640 | (concat |
| 641 | (make-temp-name |
| 642 | (expand-file-name |
| 643 | auto-save-list-file-prefix)) |
| 644 | "~")) |
| 645 | (t |
| 646 | (expand-file-name |
| 647 | (format "%s%d-%s~" |
| 648 | auto-save-list-file-prefix |
| 649 | (emacs-pid) |
| 650 | (system-name)))))))) |
| 651 | (unless inhibit-startup-hooks |
| 652 | (run-hooks 'emacs-startup-hook 'term-setup-hook)) |
| 653 | |
| 654 | ;; Don't do this if we failed to create the initial frame, |
| 655 | ;; for instance due to a dense colormap. |
| 656 | (when (or frame-initial-frame |
| 657 | ;; If frame-initial-frame has no meaning, do this anyway. |
| 658 | (not (and initial-window-system |
| 659 | (not noninteractive) |
| 660 | (not (eq initial-window-system 'pc))))) |
| 661 | |
| 662 | ;; FIXME: The user's init file may change |
| 663 | ;; face-font-rescale-alist. However, the default face |
| 664 | ;; already has an assigned font object, which does not take |
| 665 | ;; face-font-rescale-alist into account. For such |
| 666 | ;; situations, we ought to have a way to find all font |
| 667 | ;; objects and regenerate them; currently we do not. As a |
| 668 | ;; workaround, we specifically reset te default face's :font |
| 669 | ;; attribute here. See bug#1785. |
| 670 | (unless (eq face-font-rescale-alist |
| 671 | old-face-font-rescale-alist) |
| 672 | (set-face-attribute 'default nil :font (font-spec))) |
| 673 | |
| 674 | ;; Modify the initial frame based on what .emacs puts into |
| 675 | ;; ...-frame-alist. |
| 676 | (if (fboundp 'frame-notice-user-settings) |
| 677 | (frame-notice-user-settings)) |
| 678 | ;; Set the faces for the initial background mode even if |
| 679 | ;; frame-notice-user-settings didn't (such as on a tty). |
| 680 | ;; frame-set-background-mode is idempotent, so it won't |
| 681 | ;; cause any harm if it's already been done. |
| 682 | (if (fboundp 'frame-set-background-mode) |
| 683 | (frame-set-background-mode (selected-frame)))) |
| 684 | |
| 685 | ;; Now we know the user's default font, so add it to the menu. |
| 686 | (if (fboundp 'font-menu-add-default) |
| 687 | (font-menu-add-default)) |
| 688 | (unless inhibit-startup-hooks |
| 689 | (run-hooks 'window-setup-hook)))) |
| 690 | ;; Subprocesses of Emacs do not have direct access to the terminal, so |
| 691 | ;; unless told otherwise they should only assume a dumb terminal. |
| 692 | ;; We are careful to do it late (after term-setup-hook), although the |
| 693 | ;; new multi-tty code does not use $TERM any more there anyway. |
| 694 | (setenv "TERM" "dumb") |
| 695 | ;; Remove DISPLAY from the process-environment as well. This allows |
| 696 | ;; `callproc.c' to give it a useful adaptive default which is either |
| 697 | ;; the value of the `display' frame-parameter or the DISPLAY value |
| 698 | ;; from initial-environment. |
| 699 | (let ((display (frame-parameter nil 'display))) |
| 700 | ;; Be careful which DISPLAY to remove from process-environment: follow |
| 701 | ;; the logic of `callproc.c'. |
| 702 | (if (stringp display) (setq display (concat "DISPLAY=" display)) |
| 703 | (dolist (varval initial-environment) |
| 704 | (if (string-match "\\`DISPLAY=" varval) |
| 705 | (setq display varval)))) |
| 706 | (when display |
| 707 | (delete display process-environment))))) |
| 708 | |
| 709 | ;; Precompute the keyboard equivalents in the menu bar items. |
| 710 | ;; Command-line options supported by tty's: |
| 711 | (defconst tty-long-option-alist |
| 712 | '(("--name" . "-name") |
| 713 | ("--title" . "-T") |
| 714 | ("--reverse-video" . "-reverse") |
| 715 | ("--foreground-color" . "-fg") |
| 716 | ("--background-color" . "-bg") |
| 717 | ("--color" . "-color"))) |
| 718 | |
| 719 | (defconst tool-bar-images-pixel-height 24 |
| 720 | "Height in pixels of images in the tool-bar.") |
| 721 | |
| 722 | (defvar tool-bar-originally-present nil |
| 723 | "Non-nil if tool-bars are present before user and site init files are read.") |
| 724 | |
| 725 | (defvar handle-args-function-alist '((nil . tty-handle-args)) |
| 726 | "Functions for processing window-system dependent command-line arguments. |
| 727 | Window system startup files should add their own function to this |
| 728 | alist, which should parse the command line arguments. Those |
| 729 | pertaining to the window system should be processed and removed |
| 730 | from the returned command line.") |
| 731 | |
| 732 | (defvar window-system-initialization-alist '((nil . ignore)) |
| 733 | "Alist of window-system initialization functions. |
| 734 | Window-system startup files should add their own initialization |
| 735 | function to this list. The function should take no arguments, |
| 736 | and initialize the window system environment to prepare for |
| 737 | opening the first frame (e.g. open a connection to an X server).") |
| 738 | |
| 739 | (defun tty-handle-args (args) |
| 740 | "Handle the X-like command-line arguments \"-fg\", \"-bg\", \"-name\", etc." |
| 741 | (let (rest) |
| 742 | (while (and args |
| 743 | (not (equal (car args) "--"))) |
| 744 | (let* ((argi (pop args)) |
| 745 | (orig-argi argi) |
| 746 | argval completion) |
| 747 | ;; Check for long options with attached arguments |
| 748 | ;; and separate out the attached option argument into argval. |
| 749 | (when (string-match "^\\(--[^=]*\\)=" argi) |
| 750 | (setq argval (substring argi (match-end 0)) |
| 751 | argi (match-string 1 argi))) |
| 752 | (when (string-match "^--" argi) |
| 753 | (setq completion (try-completion argi tty-long-option-alist)) |
| 754 | (if (eq completion t) |
| 755 | ;; Exact match for long option. |
| 756 | (setq argi (cdr (assoc argi tty-long-option-alist))) |
| 757 | (if (stringp completion) |
| 758 | (let ((elt (assoc completion tty-long-option-alist))) |
| 759 | ;; Check for abbreviated long option. |
| 760 | (or elt |
| 761 | (error "Option `%s' is ambiguous" argi)) |
| 762 | (setq argi (cdr elt))) |
| 763 | ;; Check for a short option. |
| 764 | (setq argval nil |
| 765 | argi orig-argi)))) |
| 766 | (cond ((member argi '("-fg" "-foreground")) |
| 767 | (push (cons 'foreground-color (or argval (pop args))) |
| 768 | default-frame-alist)) |
| 769 | ((member argi '("-bg" "-background")) |
| 770 | (push (cons 'background-color (or argval (pop args))) |
| 771 | default-frame-alist)) |
| 772 | ((member argi '("-T" "-name")) |
| 773 | (unless argval (setq argval (pop args))) |
| 774 | (push (cons 'title |
| 775 | (if (stringp argval) |
| 776 | argval |
| 777 | (let ((case-fold-search t) |
| 778 | i) |
| 779 | (setq argval (invocation-name)) |
| 780 | |
| 781 | ;; Change any . or * characters in name to |
| 782 | ;; hyphens, so as to emulate behavior on X. |
| 783 | (while |
| 784 | (setq i (string-match "[.*]" argval)) |
| 785 | (aset argval i ?-)) |
| 786 | argval))) |
| 787 | default-frame-alist)) |
| 788 | ((member argi '("-r" "-rv" "-reverse")) |
| 789 | (push '(reverse . t) |
| 790 | default-frame-alist)) |
| 791 | ((equal argi "-color") |
| 792 | (unless argval (setq argval 8)) ; default --color means 8 ANSI colors |
| 793 | (push (cons 'tty-color-mode |
| 794 | (cond |
| 795 | ((numberp argval) argval) |
| 796 | ((string-match "-?[0-9]+" argval) |
| 797 | (string-to-number argval)) |
| 798 | (t (intern argval)))) |
| 799 | default-frame-alist)) |
| 800 | (t |
| 801 | (push argi rest))))) |
| 802 | (nconc (nreverse rest) args))) |
| 803 | |
| 804 | (declare-function x-get-resource "frame.c" |
| 805 | (attribute class &optional component subclass)) |
| 806 | (declare-function tool-bar-mode "tool-bar" (&optional arg)) |
| 807 | (declare-function tool-bar-setup "tool-bar") |
| 808 | |
| 809 | (defvar server-name) |
| 810 | (defvar server-process) |
| 811 | |
| 812 | (defun command-line () |
| 813 | "A subroutine of `normal-top-level'. |
| 814 | Amongst another things, it parses the command-line arguments." |
| 815 | (setq before-init-time (current-time) |
| 816 | after-init-time nil |
| 817 | command-line-default-directory default-directory) |
| 818 | |
| 819 | ;; Force recomputation, in case it was computed during the dump. |
| 820 | (setq abbreviated-home-dir nil) |
| 821 | |
| 822 | ;; See if we should import version-control from the environment variable. |
| 823 | (let ((vc (getenv "VERSION_CONTROL"))) |
| 824 | (cond ((eq vc nil)) ;don't do anything if not set |
| 825 | ((member vc '("t" "numbered")) |
| 826 | (setq version-control t)) |
| 827 | ((member vc '("nil" "existing")) |
| 828 | (setq version-control nil)) |
| 829 | ((member vc '("never" "simple")) |
| 830 | (setq version-control 'never)))) |
| 831 | |
| 832 | ;;! This has been commented out; I currently find the behavior when |
| 833 | ;;! split-window-keep-point is nil disturbing, but if I can get used |
| 834 | ;;! to it, then it would be better to eliminate the option. |
| 835 | ;;! ;; Choose a good default value for split-window-keep-point. |
| 836 | ;;! (setq split-window-keep-point (> baud-rate 2400)) |
| 837 | |
| 838 | ;; Convert preloaded file names in load-history to absolute. |
| 839 | (let ((simple-file-name |
| 840 | ;; Look for simple.el or simple.elc and use their directory |
| 841 | ;; as the place where all Lisp files live. |
| 842 | (locate-file "simple" load-path (get-load-suffixes))) |
| 843 | lisp-dir) |
| 844 | ;; Don't abort if simple.el cannot be found, but print a warning. |
| 845 | ;; Although in most usage we are going to cryptically abort a moment |
| 846 | ;; later anyway, due to missing required bidi data files (eg bug#13430). |
| 847 | (if (null simple-file-name) |
| 848 | (let ((standard-output 'external-debugging-output) |
| 849 | (lispdir (expand-file-name "../lisp" data-directory))) |
| 850 | (princ "Warning: Could not find simple.el or simple.elc") |
| 851 | (terpri) |
| 852 | (when (getenv "EMACSLOADPATH") |
| 853 | (princ "The EMACSLOADPATH environment variable is set, \ |
| 854 | please check its value") |
| 855 | (terpri)) |
| 856 | (unless (file-readable-p lispdir) |
| 857 | (princ (format "Lisp directory %s not readable?" lispdir)) |
| 858 | (terpri))) |
| 859 | (setq lisp-dir (file-truename (file-name-directory simple-file-name))) |
| 860 | (setq load-history |
| 861 | (mapcar (lambda (elt) |
| 862 | (if (and (stringp (car elt)) |
| 863 | (not (file-name-absolute-p (car elt)))) |
| 864 | (cons (concat lisp-dir |
| 865 | (car elt)) |
| 866 | (cdr elt)) |
| 867 | elt)) |
| 868 | load-history)))) |
| 869 | |
| 870 | ;; Convert the arguments to Emacs internal representation. |
| 871 | (let ((args command-line-args)) |
| 872 | (while args |
| 873 | (setcar args |
| 874 | (decode-coding-string (car args) locale-coding-system t)) |
| 875 | (pop args))) |
| 876 | |
| 877 | (let ((done nil) |
| 878 | (args (cdr command-line-args)) |
| 879 | display-arg) |
| 880 | |
| 881 | ;; Figure out which user's init file to load, |
| 882 | ;; either from the environment or from the options. |
| 883 | (setq init-file-user (if noninteractive nil (user-login-name))) |
| 884 | ;; If user has not done su, use current $HOME to find .emacs. |
| 885 | (and init-file-user |
| 886 | (equal init-file-user (user-real-login-name)) |
| 887 | (setq init-file-user "")) |
| 888 | |
| 889 | ;; Process the command-line args, and delete the arguments |
| 890 | ;; processed. This is consistent with the way main in emacs.c |
| 891 | ;; does things. |
| 892 | (while (and (not done) args) |
| 893 | (let* ((longopts '(("--no-init-file") ("--no-site-file") ("--debug-init") |
| 894 | ("--user") ("--iconic") ("--icon-type") ("--quick") |
| 895 | ("--no-blinking-cursor") ("--basic-display"))) |
| 896 | (argi (pop args)) |
| 897 | (orig-argi argi) |
| 898 | argval) |
| 899 | ;; Handle --OPTION=VALUE format. |
| 900 | (when (string-match "\\`\\(--[^=]*\\)=" argi) |
| 901 | (setq argval (substring argi (match-end 0)) |
| 902 | argi (match-string 1 argi))) |
| 903 | (when (string-match "\\`--." orig-argi) |
| 904 | (let ((completion (try-completion argi longopts))) |
| 905 | (cond ((eq completion t) |
| 906 | (setq argi (substring argi 1))) |
| 907 | ((stringp completion) |
| 908 | (let ((elt (assoc completion longopts))) |
| 909 | (unless elt |
| 910 | (error "Option `%s' is ambiguous" argi)) |
| 911 | (setq argi (substring (car elt) 1)))) |
| 912 | (t |
| 913 | (setq argval nil |
| 914 | argi orig-argi))))) |
| 915 | (cond |
| 916 | ;; The --display arg is handled partly in C, partly in Lisp. |
| 917 | ;; When it shows up here, we just put it back to be handled |
| 918 | ;; by `command-line-1'. |
| 919 | ((member argi '("-d" "-display")) |
| 920 | (setq display-arg (list argi (pop args)))) |
| 921 | ((member argi '("-Q" "-quick")) |
| 922 | (setq init-file-user nil |
| 923 | site-run-file nil |
| 924 | inhibit-x-resources t)) |
| 925 | ((member argi '("-D" "-basic-display")) |
| 926 | (setq no-blinking-cursor t |
| 927 | emacs-basic-display t) |
| 928 | (push '(vertical-scroll-bars . nil) initial-frame-alist)) |
| 929 | ((member argi '("-q" "-no-init-file")) |
| 930 | (setq init-file-user nil)) |
| 931 | ((member argi '("-u" "-user")) |
| 932 | (setq init-file-user (or argval (pop args)) |
| 933 | argval nil)) |
| 934 | ((equal argi "-no-site-file") |
| 935 | (setq site-run-file nil)) |
| 936 | ((equal argi "-debug-init") |
| 937 | (setq init-file-debug t)) |
| 938 | ((equal argi "-iconic") |
| 939 | (push '(visibility . icon) initial-frame-alist)) |
| 940 | ((member argi '("-nbc" "-no-blinking-cursor")) |
| 941 | (setq no-blinking-cursor t)) |
| 942 | ;; Push the popped arg back on the list of arguments. |
| 943 | (t |
| 944 | (push argi args) |
| 945 | (setq done t))) |
| 946 | ;; Was argval set but not used? |
| 947 | (and argval |
| 948 | (error "Option `%s' doesn't allow an argument" argi)))) |
| 949 | |
| 950 | ;; Re-attach the --display arg. |
| 951 | (and display-arg (setq args (append display-arg args))) |
| 952 | |
| 953 | ;; Re-attach the program name to the front of the arg list. |
| 954 | (and command-line-args |
| 955 | (setcdr command-line-args args))) |
| 956 | |
| 957 | ;; Make sure window system's init file was loaded in loadup.el if |
| 958 | ;; using a window system. |
| 959 | ;; Initialize the window-system only after processing the command-line |
| 960 | ;; args so that -Q can influence this initialization. |
| 961 | (condition-case error |
| 962 | (unless noninteractive |
| 963 | (if (and initial-window-system |
| 964 | (not (featurep |
| 965 | (intern |
| 966 | (concat (symbol-name initial-window-system) "-win"))))) |
| 967 | (error "Unsupported window system `%s'" initial-window-system)) |
| 968 | ;; Process window-system specific command line parameters. |
| 969 | (setq command-line-args |
| 970 | (funcall |
| 971 | (or (cdr (assq initial-window-system handle-args-function-alist)) |
| 972 | (error "Unsupported window system `%s'" initial-window-system)) |
| 973 | command-line-args)) |
| 974 | ;; Initialize the window system. (Open connection, etc.) |
| 975 | (funcall |
| 976 | (or (cdr (assq initial-window-system window-system-initialization-alist)) |
| 977 | (error "Unsupported window system `%s'" initial-window-system))) |
| 978 | (put initial-window-system 'window-system-initialized t)) |
| 979 | ;; If there was an error, print the error message and exit. |
| 980 | (error |
| 981 | (princ |
| 982 | (if (eq (car error) 'error) |
| 983 | (apply 'concat (cdr error)) |
| 984 | (if (memq 'file-error (get (car error) 'error-conditions)) |
| 985 | (format "%s: %s" |
| 986 | (nth 1 error) |
| 987 | (mapconcat (lambda (obj) (prin1-to-string obj t)) |
| 988 | (cdr (cdr error)) ", ")) |
| 989 | (format "%s: %s" |
| 990 | (get (car error) 'error-message) |
| 991 | (mapconcat (lambda (obj) (prin1-to-string obj t)) |
| 992 | (cdr error) ", ")))) |
| 993 | 'external-debugging-output) |
| 994 | (terpri 'external-debugging-output) |
| 995 | (setq initial-window-system nil) |
| 996 | (kill-emacs))) |
| 997 | |
| 998 | (run-hooks 'before-init-hook) |
| 999 | |
| 1000 | ;; Under X, create the X frame and delete the terminal frame. |
| 1001 | (unless (daemonp) |
| 1002 | (if (or noninteractive emacs-basic-display) |
| 1003 | (setq menu-bar-mode nil |
| 1004 | tool-bar-mode nil |
| 1005 | no-blinking-cursor t)) |
| 1006 | (frame-initialize)) |
| 1007 | |
| 1008 | (when (fboundp 'x-create-frame) |
| 1009 | ;; Set up the tool-bar (even in tty frames, since Emacs might open a |
| 1010 | ;; graphical frame later). |
| 1011 | (unless noninteractive |
| 1012 | (tool-bar-setup))) |
| 1013 | |
| 1014 | ;; Turn off blinking cursor if so specified in X resources. This is here |
| 1015 | ;; only because all other settings of no-blinking-cursor are here. |
| 1016 | (unless (or noninteractive |
| 1017 | emacs-basic-display |
| 1018 | (and (memq window-system '(x w32 ns)) |
| 1019 | (not (member (x-get-resource "cursorBlink" "CursorBlink") |
| 1020 | '("no" "off" "false" "0"))))) |
| 1021 | (setq no-blinking-cursor t)) |
| 1022 | |
| 1023 | ;; Re-evaluate predefined variables whose initial value depends on |
| 1024 | ;; the runtime context. |
| 1025 | (mapc 'custom-reevaluate-setting |
| 1026 | ;; Initialize them in the same order they were loaded, in case there |
| 1027 | ;; are dependencies between them. |
| 1028 | (prog1 (nreverse custom-delayed-init-variables) |
| 1029 | (setq custom-delayed-init-variables nil))) |
| 1030 | |
| 1031 | (normal-erase-is-backspace-setup-frame) |
| 1032 | |
| 1033 | ;; Register default TTY colors for the case the terminal hasn't a |
| 1034 | ;; terminal init file. We do this regardless of whether the terminal |
| 1035 | ;; supports colors or not and regardless the current display type, |
| 1036 | ;; since users can connect to color-capable terminals and also |
| 1037 | ;; switch color support on or off in mid-session by setting the |
| 1038 | ;; tty-color-mode frame parameter. |
| 1039 | ;; Exception: the `pc' ``window system'' has only 16 fixed colors, |
| 1040 | ;; and they are already set at this point by a suitable function in |
| 1041 | ;; window-system-initialization-alist. |
| 1042 | (or (eq initial-window-system 'pc) |
| 1043 | (tty-register-default-colors)) |
| 1044 | |
| 1045 | ;; Record whether the tool-bar is present before the user and site |
| 1046 | ;; init files are processed. frame-notice-user-settings uses this |
| 1047 | ;; to determine if the tool-bar has been disabled by the init files, |
| 1048 | ;; and the frame needs to be resized. |
| 1049 | (when (fboundp 'frame-notice-user-settings) |
| 1050 | (let ((tool-bar-lines (or (assq 'tool-bar-lines initial-frame-alist) |
| 1051 | (assq 'tool-bar-lines default-frame-alist)))) |
| 1052 | (setq tool-bar-originally-present |
| 1053 | (and tool-bar-lines |
| 1054 | (cdr tool-bar-lines) |
| 1055 | (not (eq 0 (cdr tool-bar-lines))))))) |
| 1056 | |
| 1057 | (let ((old-scalable-fonts-allowed scalable-fonts-allowed) |
| 1058 | (old-face-ignored-fonts face-ignored-fonts)) |
| 1059 | |
| 1060 | ;; Run the site-start library if it exists. The point of this file is |
| 1061 | ;; that it is run before .emacs. There is no point in doing this after |
| 1062 | ;; .emacs; that is useless. |
| 1063 | ;; Note that user-init-file is nil at this point. Code that might |
| 1064 | ;; be loaded from site-run-file and wants to test if -q was given |
| 1065 | ;; should check init-file-user instead, since that is already set. |
| 1066 | ;; See cus-edit.el for an example. |
| 1067 | (if site-run-file |
| 1068 | (load site-run-file t t)) |
| 1069 | |
| 1070 | ;; Sites should not disable this. Only individuals should disable |
| 1071 | ;; the startup screen. |
| 1072 | (setq inhibit-startup-screen nil) |
| 1073 | |
| 1074 | ;; Warn for invalid user name. |
| 1075 | (when init-file-user |
| 1076 | (if (string-match "[~/:\n]" init-file-user) |
| 1077 | (display-warning 'initialization |
| 1078 | (format "Invalid user name %s" |
| 1079 | init-file-user) |
| 1080 | :error) |
| 1081 | (if (file-directory-p (expand-file-name |
| 1082 | ;; We don't support ~USER on MS-Windows |
| 1083 | ;; and MS-DOS except for the current |
| 1084 | ;; user, and always load .emacs from |
| 1085 | ;; the current user's home directory |
| 1086 | ;; (see below). So always check "~", |
| 1087 | ;; even if invoked with "-u USER", or |
| 1088 | ;; if $USER or $LOGNAME are set to |
| 1089 | ;; something different. |
| 1090 | (if (memq system-type '(windows-nt ms-dos)) |
| 1091 | "~" |
| 1092 | (concat "~" init-file-user)))) |
| 1093 | nil |
| 1094 | (display-warning 'initialization |
| 1095 | (format "User %s has no home directory" |
| 1096 | (if (equal init-file-user "") |
| 1097 | (user-real-login-name) |
| 1098 | init-file-user)) |
| 1099 | :error)))) |
| 1100 | |
| 1101 | ;; Load that user's init file, or the default one, or none. |
| 1102 | (let (debug-on-error-from-init-file |
| 1103 | debug-on-error-should-be-set |
| 1104 | (debug-on-error-initial |
| 1105 | (if (eq init-file-debug t) 'startup init-file-debug)) |
| 1106 | (orig-enable-multibyte (default-value 'enable-multibyte-characters))) |
| 1107 | (let ((debug-on-error debug-on-error-initial) |
| 1108 | ;; This function actually reads the init files. |
| 1109 | (inner |
| 1110 | (function |
| 1111 | (lambda () |
| 1112 | (if init-file-user |
| 1113 | (let ((user-init-file-1 |
| 1114 | (cond |
| 1115 | ((eq system-type 'ms-dos) |
| 1116 | (concat "~" init-file-user "/_emacs")) |
| 1117 | ((not (eq system-type 'windows-nt)) |
| 1118 | (concat "~" init-file-user "/.emacs")) |
| 1119 | ;; Else deal with the Windows situation |
| 1120 | ((directory-files "~" nil "^\\.emacs\\(\\.elc?\\)?$") |
| 1121 | ;; Prefer .emacs on Windows. |
| 1122 | "~/.emacs") |
| 1123 | ((directory-files "~" nil "^_emacs\\(\\.elc?\\)?$") |
| 1124 | ;; Also support _emacs for compatibility, but warn about it. |
| 1125 | (push '(initialization |
| 1126 | "`_emacs' init file is deprecated, please use `.emacs'") |
| 1127 | delayed-warnings-list) |
| 1128 | "~/_emacs") |
| 1129 | (t ;; But default to .emacs if _emacs does not exist. |
| 1130 | "~/.emacs")))) |
| 1131 | ;; This tells `load' to store the file name found |
| 1132 | ;; into user-init-file. |
| 1133 | (setq user-init-file t) |
| 1134 | (load user-init-file-1 t t) |
| 1135 | |
| 1136 | (when (eq user-init-file t) |
| 1137 | ;; If we did not find ~/.emacs, try |
| 1138 | ;; ~/.emacs.d/init.el. |
| 1139 | (let ((otherfile |
| 1140 | (expand-file-name |
| 1141 | "init" |
| 1142 | (file-name-as-directory |
| 1143 | (concat "~" init-file-user "/.emacs.d"))))) |
| 1144 | (load otherfile t t) |
| 1145 | |
| 1146 | ;; If we did not find the user's init file, |
| 1147 | ;; set user-init-file conclusively. |
| 1148 | ;; Don't let it be set from default.el. |
| 1149 | (when (eq user-init-file t) |
| 1150 | (setq user-init-file user-init-file-1)))) |
| 1151 | |
| 1152 | ;; If we loaded a compiled file, set |
| 1153 | ;; `user-init-file' to the source version if that |
| 1154 | ;; exists. |
| 1155 | (when (and user-init-file |
| 1156 | (equal (file-name-extension user-init-file) |
| 1157 | "elc")) |
| 1158 | (let* ((source (file-name-sans-extension user-init-file)) |
| 1159 | (alt (concat source ".el"))) |
| 1160 | (setq source (cond ((file-exists-p alt) alt) |
| 1161 | ((file-exists-p source) source) |
| 1162 | (t nil))) |
| 1163 | (when source |
| 1164 | (when (file-newer-than-file-p source user-init-file) |
| 1165 | (message "Warning: %s is newer than %s" |
| 1166 | source user-init-file) |
| 1167 | (sit-for 1)) |
| 1168 | (setq user-init-file source)))) |
| 1169 | |
| 1170 | (unless inhibit-default-init |
| 1171 | (let ((inhibit-startup-screen nil)) |
| 1172 | ;; Users are supposed to be told their rights. |
| 1173 | ;; (Plus how to get help and how to undo.) |
| 1174 | ;; Don't you dare turn this off for anyone |
| 1175 | ;; except yourself. |
| 1176 | (load "default" t t))))))))) |
| 1177 | (if init-file-debug |
| 1178 | ;; Do this without a condition-case if the user wants to debug. |
| 1179 | (funcall inner) |
| 1180 | (condition-case error |
| 1181 | (progn |
| 1182 | (funcall inner) |
| 1183 | (setq init-file-had-error nil)) |
| 1184 | (error |
| 1185 | (display-warning |
| 1186 | 'initialization |
| 1187 | (format "An error occurred while loading `%s':\n\n%s%s%s\n\n\ |
| 1188 | To ensure normal operation, you should investigate and remove the |
| 1189 | cause of the error in your initialization file. Start Emacs with |
| 1190 | the `--debug-init' option to view a complete error backtrace." |
| 1191 | user-init-file |
| 1192 | (get (car error) 'error-message) |
| 1193 | (if (cdr error) ": " "") |
| 1194 | (mapconcat (lambda (s) (prin1-to-string s t)) |
| 1195 | (cdr error) ", ")) |
| 1196 | :warning) |
| 1197 | (setq init-file-had-error t)))) |
| 1198 | |
| 1199 | (if (and deactivate-mark transient-mark-mode) |
| 1200 | (with-current-buffer (window-buffer) |
| 1201 | (deactivate-mark))) |
| 1202 | |
| 1203 | ;; If the user has a file of abbrevs, read it (unless -batch). |
| 1204 | (when (and (not noninteractive) |
| 1205 | (file-exists-p abbrev-file-name) |
| 1206 | (file-readable-p abbrev-file-name)) |
| 1207 | (quietly-read-abbrev-file abbrev-file-name)) |
| 1208 | |
| 1209 | ;; If the abbrevs came entirely from the init file or the |
| 1210 | ;; abbrevs file, they do not need saving. |
| 1211 | (setq abbrevs-changed nil) |
| 1212 | |
| 1213 | ;; If we can tell that the init file altered debug-on-error, |
| 1214 | ;; arrange to preserve the value that it set up. |
| 1215 | (or (eq debug-on-error debug-on-error-initial) |
| 1216 | (setq debug-on-error-should-be-set t |
| 1217 | debug-on-error-from-init-file debug-on-error))) |
| 1218 | (if debug-on-error-should-be-set |
| 1219 | (setq debug-on-error debug-on-error-from-init-file)) |
| 1220 | (unless (or (default-value 'enable-multibyte-characters) |
| 1221 | (eq orig-enable-multibyte (default-value |
| 1222 | 'enable-multibyte-characters))) |
| 1223 | ;; Init file changed to unibyte. Reset existing multibyte |
| 1224 | ;; buffers (probably *scratch*, *Messages*, *Minibuf-0*). |
| 1225 | ;; Arguably this should only be done if they're free of |
| 1226 | ;; multibyte characters. |
| 1227 | (mapc (lambda (buffer) |
| 1228 | (with-current-buffer buffer |
| 1229 | (if enable-multibyte-characters |
| 1230 | (set-buffer-multibyte nil)))) |
| 1231 | (buffer-list)) |
| 1232 | ;; Also re-set the language environment in case it was |
| 1233 | ;; originally done before unibyte was set and is sensitive to |
| 1234 | ;; unibyte (display table, terminal coding system &c). |
| 1235 | (set-language-environment current-language-environment))) |
| 1236 | |
| 1237 | ;; Do this here in case the init file sets mail-host-address. |
| 1238 | (if (equal user-mail-address "") |
| 1239 | (setq user-mail-address (or (getenv "EMAIL") |
| 1240 | (concat (user-login-name) "@" |
| 1241 | (or mail-host-address |
| 1242 | (system-name)))))) |
| 1243 | |
| 1244 | ;; If parameter have been changed in the init file which influence |
| 1245 | ;; face realization, clear the face cache so that new faces will |
| 1246 | ;; be realized. |
| 1247 | (unless (and (eq scalable-fonts-allowed old-scalable-fonts-allowed) |
| 1248 | (eq face-ignored-fonts old-face-ignored-fonts)) |
| 1249 | (clear-face-cache))) |
| 1250 | |
| 1251 | ;; If any package directory exists, initialize the package system. |
| 1252 | (and user-init-file |
| 1253 | package-enable-at-startup |
| 1254 | (catch 'package-dir-found |
| 1255 | (let (dirs) |
| 1256 | (if (boundp 'package-directory-list) |
| 1257 | (setq dirs package-directory-list) |
| 1258 | (dolist (f load-path) |
| 1259 | (and (stringp f) |
| 1260 | (equal (file-name-nondirectory f) "site-lisp") |
| 1261 | (push (expand-file-name "elpa" f) dirs)))) |
| 1262 | (push (if (boundp 'package-user-dir) |
| 1263 | package-user-dir |
| 1264 | (locate-user-emacs-file "elpa")) |
| 1265 | dirs) |
| 1266 | (dolist (dir dirs) |
| 1267 | (when (file-directory-p dir) |
| 1268 | (dolist (subdir (directory-files dir)) |
| 1269 | (when (let ((subdir (expand-file-name subdir dir))) |
| 1270 | (and (file-directory-p subdir) |
| 1271 | (file-exists-p |
| 1272 | (expand-file-name |
| 1273 | (package--description-file subdir) |
| 1274 | subdir)))) |
| 1275 | (throw 'package-dir-found t))))))) |
| 1276 | (package-initialize)) |
| 1277 | |
| 1278 | (setq after-init-time (current-time)) |
| 1279 | (run-hooks 'after-init-hook) |
| 1280 | |
| 1281 | ;; If *scratch* exists and init file didn't change its mode, initialize it. |
| 1282 | (if (get-buffer "*scratch*") |
| 1283 | (with-current-buffer "*scratch*" |
| 1284 | (if (eq major-mode 'fundamental-mode) |
| 1285 | (funcall initial-major-mode)))) |
| 1286 | |
| 1287 | ;; Load library for our terminal type. |
| 1288 | ;; User init file can set term-file-prefix to nil to prevent this. |
| 1289 | (unless (or noninteractive |
| 1290 | initial-window-system |
| 1291 | (daemonp)) |
| 1292 | (tty-run-terminal-initialization (selected-frame) nil t)) |
| 1293 | |
| 1294 | ;; Update the out-of-memory error message based on user's key bindings |
| 1295 | ;; for save-some-buffers. |
| 1296 | (setq memory-signal-data |
| 1297 | (list 'error |
| 1298 | (substitute-command-keys "Memory exhausted--use \\[save-some-buffers] then exit and restart Emacs"))) |
| 1299 | |
| 1300 | ;; Process the remaining args. |
| 1301 | (command-line-1 (cdr command-line-args)) |
| 1302 | |
| 1303 | ;; This is a problem because, e.g. if emacs.d/gnus.el exists, |
| 1304 | ;; trying to load gnus could load the wrong file. |
| 1305 | ;; OK, it would not matter if .emacs.d were at the end of load-path. |
| 1306 | ;; but for the sake of simplicity, we discourage it full-stop. |
| 1307 | ;; Ref eg http://lists.gnu.org/archive/html/emacs-devel/2012-03/msg00056.html |
| 1308 | ;; |
| 1309 | ;; A bad element could come from user-emacs-file, the command line, |
| 1310 | ;; or EMACSLOADPATH, so we basically always have to check. |
| 1311 | (let (warned) |
| 1312 | (dolist (dir load-path) |
| 1313 | (and (not warned) |
| 1314 | (string-match-p "/[._]emacs\\.d/?\\'" dir) |
| 1315 | (string-equal (file-name-as-directory (expand-file-name dir)) |
| 1316 | (expand-file-name user-emacs-directory)) |
| 1317 | (setq warned t) |
| 1318 | (display-warning 'initialization |
| 1319 | (format "Your `load-path' seems to contain |
| 1320 | your `.emacs.d' directory: %s\n\ |
| 1321 | This is likely to cause problems...\n\ |
| 1322 | Consider using a subdirectory instead, e.g.: %s" dir |
| 1323 | (expand-file-name "lisp" user-emacs-directory)) |
| 1324 | :warning)))) |
| 1325 | |
| 1326 | ;; If -batch, terminate after processing the command options. |
| 1327 | (if noninteractive (kill-emacs t)) |
| 1328 | |
| 1329 | ;; In daemon mode, start the server to allow clients to connect. |
| 1330 | ;; This is done after loading the user's init file and after |
| 1331 | ;; processing all command line arguments to allow e.g. `server-name' |
| 1332 | ;; to be changed before the server starts. |
| 1333 | (let ((dn (daemonp))) |
| 1334 | (when dn |
| 1335 | (when (stringp dn) (setq server-name dn)) |
| 1336 | (server-start) |
| 1337 | (if server-process |
| 1338 | (daemon-initialized) |
| 1339 | (if (stringp dn) |
| 1340 | (message |
| 1341 | "Unable to start daemon: Emacs server named %S already running" |
| 1342 | server-name) |
| 1343 | (message "Unable to start the daemon.\nAnother instance of Emacs is running the server, either as daemon or interactively.\nYou can use emacsclient to connect to that Emacs process.")) |
| 1344 | (kill-emacs 1)))) |
| 1345 | |
| 1346 | ;; Run emacs-session-restore (session management) if started by |
| 1347 | ;; the session manager and we have a session manager connection. |
| 1348 | (if (and (boundp 'x-session-previous-id) |
| 1349 | (stringp x-session-previous-id)) |
| 1350 | (with-no-warnings |
| 1351 | (emacs-session-restore x-session-previous-id)))) |
| 1352 | |
| 1353 | (defun x-apply-session-resources () |
| 1354 | "Apply X resources which specify initial values for Emacs variables. |
| 1355 | This is called from a window-system initialization function, such |
| 1356 | as `x-initialize-window-system' for X, either at startup (prior |
| 1357 | to reading the init file), or afterwards when the user first |
| 1358 | opens a graphical frame. |
| 1359 | |
| 1360 | This can set the values of `menu-bar-mode', `tool-bar-mode', and |
| 1361 | `no-blinking-cursor', as well as the `cursor' face. Changed |
| 1362 | settings will be marked as \"CHANGED outside of Customize\"." |
| 1363 | (let ((no-vals '("no" "off" "false" "0")) |
| 1364 | (settings '(("menuBar" "MenuBar" menu-bar-mode nil) |
| 1365 | ("toolBar" "ToolBar" tool-bar-mode nil) |
| 1366 | ("cursorBlink" "CursorBlink" no-blinking-cursor t)))) |
| 1367 | (dolist (x settings) |
| 1368 | (if (member (x-get-resource (nth 0 x) (nth 1 x)) no-vals) |
| 1369 | (set (nth 2 x) (nth 3 x))))) |
| 1370 | (let ((color (x-get-resource "cursorColor" "Foreground"))) |
| 1371 | (when color |
| 1372 | (put 'cursor 'theme-face |
| 1373 | `((changed ((t :background ,color))))) |
| 1374 | (put 'cursor 'face-modified t)))) |
| 1375 | |
| 1376 | (defcustom initial-scratch-message (purecopy "\ |
| 1377 | ;; This buffer is for notes you don't want to save, and for Lisp evaluation. |
| 1378 | ;; If you want to create a file, visit that file with C-x C-f, |
| 1379 | ;; then enter the text in that file's own buffer. |
| 1380 | |
| 1381 | ") |
| 1382 | "Initial message displayed in *scratch* buffer at startup. |
| 1383 | If this is nil, no message will be displayed." |
| 1384 | :type '(choice (text :tag "Message") |
| 1385 | (const :tag "none" nil)) |
| 1386 | :group 'initialization) |
| 1387 | |
| 1388 | \f |
| 1389 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 1390 | ;;; Fancy splash screen |
| 1391 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 1392 | |
| 1393 | (defconst fancy-startup-text |
| 1394 | `((:face (variable-pitch font-lock-comment-face) |
| 1395 | "Welcome to " |
| 1396 | :link ("GNU Emacs" |
| 1397 | ,(lambda (_button) (browse-url "http://www.gnu.org/software/emacs/")) |
| 1398 | "Browse http://www.gnu.org/software/emacs/") |
| 1399 | ", one component of the " |
| 1400 | :link |
| 1401 | ,(lambda () |
| 1402 | (if (eq system-type 'gnu/linux) |
| 1403 | `("GNU/Linux" |
| 1404 | ,(lambda (_button) (browse-url "http://www.gnu.org/gnu/linux-and-gnu.html")) |
| 1405 | "Browse http://www.gnu.org/gnu/linux-and-gnu.html") |
| 1406 | `("GNU" ,(lambda (_button) |
| 1407 | (browse-url "http://www.gnu.org/gnu/thegnuproject.html")) |
| 1408 | "Browse http://www.gnu.org/gnu/thegnuproject.html"))) |
| 1409 | " operating system.\n\n" |
| 1410 | :face variable-pitch |
| 1411 | :link ("Emacs Tutorial" ,(lambda (_button) (help-with-tutorial))) |
| 1412 | "\tLearn basic keystroke commands" |
| 1413 | ,(lambda () |
| 1414 | (let* ((en "TUTORIAL") |
| 1415 | (tut (or (get-language-info current-language-environment |
| 1416 | 'tutorial) |
| 1417 | en)) |
| 1418 | (title (with-temp-buffer |
| 1419 | (insert-file-contents |
| 1420 | (expand-file-name tut tutorial-directory) |
| 1421 | ;; We used to read only the first 256 bytes of |
| 1422 | ;; the tutorial, but that prevents the coding: |
| 1423 | ;; setting, if any, in file-local variables |
| 1424 | ;; section to be seen by insert-file-contents, |
| 1425 | ;; and results in gibberish when the language |
| 1426 | ;; environment's preferred encoding is |
| 1427 | ;; different from what the file-local variable |
| 1428 | ;; says. One case in point is Hebrew. |
| 1429 | nil) |
| 1430 | (search-forward ".") |
| 1431 | (buffer-substring (point-min) (1- (point)))))) |
| 1432 | ;; If there is a specific tutorial for the current language |
| 1433 | ;; environment and it is not English, append its title. |
| 1434 | (if (string= en tut) |
| 1435 | "" |
| 1436 | (concat " (" title ")")))) |
| 1437 | "\n" |
| 1438 | :link ("Emacs Guided Tour" |
| 1439 | ,(lambda (_button) |
| 1440 | (browse-url "http://www.gnu.org/software/emacs/tour/")) |
| 1441 | "Browse http://www.gnu.org/software/emacs/tour/") |
| 1442 | "\tOverview of Emacs features at gnu.org\n" |
| 1443 | :link ("View Emacs Manual" ,(lambda (_button) (info-emacs-manual))) |
| 1444 | "\tView the Emacs manual using Info\n" |
| 1445 | :link ("Absence of Warranty" ,(lambda (_button) (describe-no-warranty))) |
| 1446 | "\tGNU Emacs comes with " |
| 1447 | :face (variable-pitch (:slant oblique)) |
| 1448 | "ABSOLUTELY NO WARRANTY\n" |
| 1449 | :face variable-pitch |
| 1450 | :link ("Copying Conditions" ,(lambda (_button) (describe-copying))) |
| 1451 | "\tConditions for redistributing and changing Emacs\n" |
| 1452 | :link ("Ordering Manuals" ,(lambda (_button) (view-order-manuals))) |
| 1453 | "\tPurchasing printed copies of manuals\n" |
| 1454 | "\n")) |
| 1455 | "A list of texts to show in the middle part of splash screens. |
| 1456 | Each element in the list should be a list of strings or pairs |
| 1457 | `:face FACE', like `fancy-splash-insert' accepts them.") |
| 1458 | |
| 1459 | (defconst fancy-about-text |
| 1460 | `((:face (variable-pitch font-lock-comment-face) |
| 1461 | "This is " |
| 1462 | :link ("GNU Emacs" |
| 1463 | ,(lambda (_button) (browse-url "http://www.gnu.org/software/emacs/")) |
| 1464 | "Browse http://www.gnu.org/software/emacs/") |
| 1465 | ", one component of the " |
| 1466 | :link |
| 1467 | ,(lambda () |
| 1468 | (if (eq system-type 'gnu/linux) |
| 1469 | `("GNU/Linux" |
| 1470 | ,(lambda (_button) |
| 1471 | (browse-url "http://www.gnu.org/gnu/linux-and-gnu.html")) |
| 1472 | "Browse http://www.gnu.org/gnu/linux-and-gnu.html") |
| 1473 | `("GNU" ,(lambda (_button) (describe-gnu-project)) |
| 1474 | "Display info on the GNU project."))) |
| 1475 | " operating system.\n" |
| 1476 | :face (variable-pitch font-lock-builtin-face) |
| 1477 | "\n" |
| 1478 | ,(lambda () (emacs-version)) |
| 1479 | "\n" |
| 1480 | :face (variable-pitch (:height 0.8)) |
| 1481 | ,(lambda () emacs-copyright) |
| 1482 | "\n\n" |
| 1483 | :face variable-pitch |
| 1484 | :link ("Authors" |
| 1485 | ,(lambda (_button) |
| 1486 | (view-file (expand-file-name "AUTHORS" data-directory)) |
| 1487 | (goto-char (point-min)))) |
| 1488 | "\tMany people have contributed code included in GNU Emacs\n" |
| 1489 | :link ("Contributing" |
| 1490 | ,(lambda (_button) |
| 1491 | (view-file (expand-file-name "CONTRIBUTE" data-directory)) |
| 1492 | (goto-char (point-min)))) |
| 1493 | "\tHow to contribute improvements to Emacs\n" |
| 1494 | "\n" |
| 1495 | :link ("GNU and Freedom" ,(lambda (_button) (describe-gnu-project))) |
| 1496 | "\tWhy we developed GNU Emacs, and the GNU operating system\n" |
| 1497 | :link ("Absence of Warranty" ,(lambda (_button) (describe-no-warranty))) |
| 1498 | "\tGNU Emacs comes with " |
| 1499 | :face (variable-pitch (:slant oblique)) |
| 1500 | "ABSOLUTELY NO WARRANTY\n" |
| 1501 | :face variable-pitch |
| 1502 | :link ("Copying Conditions" ,(lambda (_button) (describe-copying))) |
| 1503 | "\tConditions for redistributing and changing Emacs\n" |
| 1504 | :link ("Getting New Versions" ,(lambda (_button) (describe-distribution))) |
| 1505 | "\tHow to obtain the latest version of Emacs\n" |
| 1506 | :link ("Ordering Manuals" ,(lambda (_button) (view-order-manuals))) |
| 1507 | "\tBuying printed manuals from the FSF\n" |
| 1508 | "\n" |
| 1509 | :link ("Emacs Tutorial" ,(lambda (_button) (help-with-tutorial))) |
| 1510 | "\tLearn basic Emacs keystroke commands" |
| 1511 | ,(lambda () |
| 1512 | (let* ((en "TUTORIAL") |
| 1513 | (tut (or (get-language-info current-language-environment |
| 1514 | 'tutorial) |
| 1515 | en)) |
| 1516 | (title (with-temp-buffer |
| 1517 | (insert-file-contents |
| 1518 | (expand-file-name tut tutorial-directory) |
| 1519 | nil 0 256) |
| 1520 | (search-forward ".") |
| 1521 | (buffer-substring (point-min) (1- (point)))))) |
| 1522 | ;; If there is a specific tutorial for the current language |
| 1523 | ;; environment and it is not English, append its title. |
| 1524 | (if (string= en tut) |
| 1525 | "" |
| 1526 | (concat " (" title ")")))) |
| 1527 | "\n" |
| 1528 | :link ("Emacs Guided Tour" |
| 1529 | ,(lambda (_button) |
| 1530 | (browse-url "http://www.gnu.org/software/emacs/tour/")) |
| 1531 | "Browse http://www.gnu.org/software/emacs/tour/") |
| 1532 | "\tSee an overview of Emacs features at gnu.org")) |
| 1533 | "A list of texts to show in the middle part of the About screen. |
| 1534 | Each element in the list should be a list of strings or pairs |
| 1535 | `:face FACE', like `fancy-splash-insert' accepts them.") |
| 1536 | |
| 1537 | |
| 1538 | (defgroup fancy-splash-screen () |
| 1539 | "Fancy splash screen when Emacs starts." |
| 1540 | :version "21.1" |
| 1541 | :group 'initialization) |
| 1542 | |
| 1543 | (defcustom fancy-splash-image nil |
| 1544 | "The image to show in the splash screens, or nil for defaults." |
| 1545 | :group 'fancy-splash-screen |
| 1546 | :type '(choice (const :tag "Default" nil) |
| 1547 | (file :tag "File"))) |
| 1548 | |
| 1549 | |
| 1550 | (defvar splash-screen-keymap |
| 1551 | (let ((map (make-sparse-keymap))) |
| 1552 | (suppress-keymap map) |
| 1553 | (set-keymap-parent map button-buffer-map) |
| 1554 | (define-key map "\C-?" 'scroll-down-command) |
| 1555 | (define-key map [?\S-\ ] 'scroll-down-command) |
| 1556 | (define-key map " " 'scroll-up-command) |
| 1557 | (define-key map "q" 'exit-splash-screen) |
| 1558 | map) |
| 1559 | "Keymap for splash screen buffer.") |
| 1560 | |
| 1561 | ;; These are temporary storage areas for the splash screen display. |
| 1562 | |
| 1563 | (defun fancy-splash-insert (&rest args) |
| 1564 | "Insert text into the current buffer, with faces. |
| 1565 | Arguments from ARGS should be either strings; functions called |
| 1566 | with no args that return a string; pairs `:face FACE', where FACE |
| 1567 | is a face specification usable with `put-text-property'; or pairs |
| 1568 | `:link LINK' where LINK is a list of arguments to pass to |
| 1569 | `insert-button', of the form (LABEL ACTION [HELP-ECHO]), which |
| 1570 | specifies the button's label, `action' property and help-echo string. |
| 1571 | FACE and LINK can also be functions, which are evaluated to obtain |
| 1572 | a face or button specification." |
| 1573 | (let ((current-face nil)) |
| 1574 | (while args |
| 1575 | (cond ((eq (car args) :face) |
| 1576 | (setq args (cdr args) current-face (car args)) |
| 1577 | (if (functionp current-face) |
| 1578 | (setq current-face (funcall current-face)))) |
| 1579 | ((eq (car args) :link) |
| 1580 | (setq args (cdr args)) |
| 1581 | (let ((spec (car args))) |
| 1582 | (if (functionp spec) |
| 1583 | (setq spec (funcall spec))) |
| 1584 | (insert-button (car spec) |
| 1585 | 'face (list 'link current-face) |
| 1586 | 'action (cadr spec) |
| 1587 | 'help-echo (concat "mouse-2, RET: " |
| 1588 | (or (nth 2 spec) |
| 1589 | "Follow this link")) |
| 1590 | 'follow-link t))) |
| 1591 | (t (insert (propertize (let ((it (car args))) |
| 1592 | (if (functionp it) |
| 1593 | (funcall it) |
| 1594 | it)) |
| 1595 | 'face current-face |
| 1596 | 'help-echo (startup-echo-area-message))))) |
| 1597 | (setq args (cdr args))))) |
| 1598 | |
| 1599 | (declare-function image-size "image.c" (spec &optional pixels frame)) |
| 1600 | |
| 1601 | (defun fancy-splash-image-file () |
| 1602 | (cond ((stringp fancy-splash-image) fancy-splash-image) |
| 1603 | ((display-color-p) |
| 1604 | (cond ((<= (display-planes) 8) |
| 1605 | (if (image-type-available-p 'xpm) |
| 1606 | "splash.xpm" |
| 1607 | "splash.pbm")) |
| 1608 | ((or (image-type-available-p 'svg) |
| 1609 | (image-type-available-p 'imagemagick)) |
| 1610 | "splash.svg") |
| 1611 | ((image-type-available-p 'png) |
| 1612 | "splash.png") |
| 1613 | ((image-type-available-p 'xpm) |
| 1614 | "splash.xpm") |
| 1615 | (t "splash.pbm"))) |
| 1616 | (t "splash.pbm"))) |
| 1617 | |
| 1618 | (defun fancy-splash-head () |
| 1619 | "Insert the head part of the splash screen into the current buffer." |
| 1620 | (let* ((image-file (fancy-splash-image-file)) |
| 1621 | (img (create-image image-file)) |
| 1622 | (image-width (and img (car (image-size img)))) |
| 1623 | (window-width (window-width))) |
| 1624 | (when img |
| 1625 | (when (> window-width image-width) |
| 1626 | ;; Center the image in the window. |
| 1627 | (insert (propertize " " 'display |
| 1628 | `(space :align-to (+ center (-0.5 . ,img))))) |
| 1629 | |
| 1630 | ;; Change the color of the XPM version of the splash image |
| 1631 | ;; so that it is visible with a dark frame background. |
| 1632 | (when (and (memq 'xpm img) |
| 1633 | (eq (frame-parameter nil 'background-mode) 'dark)) |
| 1634 | (setq img (append img '(:color-symbols (("#000000" . "gray30")))))) |
| 1635 | |
| 1636 | ;; Insert the image with a help-echo and a link. |
| 1637 | (make-button (prog1 (point) (insert-image img)) (point) |
| 1638 | 'face 'default |
| 1639 | 'help-echo "mouse-2, RET: Browse http://www.gnu.org/" |
| 1640 | 'action (lambda (_button) (browse-url "http://www.gnu.org/")) |
| 1641 | 'follow-link t) |
| 1642 | (insert "\n\n"))))) |
| 1643 | |
| 1644 | (defun fancy-startup-tail (&optional concise) |
| 1645 | "Insert the tail part of the splash screen into the current buffer." |
| 1646 | (unless concise |
| 1647 | (fancy-splash-insert |
| 1648 | :face 'variable-pitch |
| 1649 | "\nTo start... " |
| 1650 | :link `("Open a File" |
| 1651 | ,(lambda (_button) (call-interactively 'find-file)) |
| 1652 | "Specify a new file's name, to edit the file") |
| 1653 | " " |
| 1654 | :link `("Open Home Directory" |
| 1655 | ,(lambda (_button) (dired "~")) |
| 1656 | "Open your home directory, to operate on its files") |
| 1657 | " " |
| 1658 | :link `("Customize Startup" |
| 1659 | ,(lambda (_button) (customize-group 'initialization)) |
| 1660 | "Change initialization settings including this screen") |
| 1661 | "\n")) |
| 1662 | (fancy-splash-insert |
| 1663 | :face 'variable-pitch "To quit a partially entered command, type " |
| 1664 | :face 'default "Control-g" |
| 1665 | :face 'variable-pitch ".\n") |
| 1666 | (fancy-splash-insert :face `(variable-pitch font-lock-builtin-face) |
| 1667 | "\nThis is " |
| 1668 | (emacs-version) |
| 1669 | "\n" |
| 1670 | :face '(variable-pitch (:height 0.8)) |
| 1671 | emacs-copyright |
| 1672 | "\n") |
| 1673 | (when auto-save-list-file-prefix |
| 1674 | (let ((dir (file-name-directory auto-save-list-file-prefix)) |
| 1675 | (name (file-name-nondirectory auto-save-list-file-prefix)) |
| 1676 | files) |
| 1677 | ;; Don't warn if the directory for auto-save-list files does not |
| 1678 | ;; yet exist. |
| 1679 | (and (file-directory-p dir) |
| 1680 | (setq files (directory-files dir nil (concat "\\`" name) t)) |
| 1681 | (fancy-splash-insert :face '(variable-pitch font-lock-comment-face) |
| 1682 | (if (= (length files) 1) |
| 1683 | "\nAn auto-save file list was found. " |
| 1684 | "\nAuto-save file lists were found. ") |
| 1685 | "If an Emacs session crashed recently,\ntype " |
| 1686 | :link `("M-x recover-session RET" |
| 1687 | ,(lambda (_button) |
| 1688 | (call-interactively |
| 1689 | 'recover-session))) |
| 1690 | " to recover the files you were editing.")))) |
| 1691 | |
| 1692 | (when concise |
| 1693 | (fancy-splash-insert |
| 1694 | :face 'variable-pitch "\n" |
| 1695 | :link `("Dismiss this startup screen" |
| 1696 | ,(lambda (_button) |
| 1697 | (when startup-screen-inhibit-startup-screen |
| 1698 | (customize-set-variable 'inhibit-startup-screen t) |
| 1699 | (customize-mark-to-save 'inhibit-startup-screen) |
| 1700 | (custom-save-all)) |
| 1701 | (let ((w (get-buffer-window "*GNU Emacs*"))) |
| 1702 | (and w (not (one-window-p)) (delete-window w))) |
| 1703 | (kill-buffer "*GNU Emacs*"))) |
| 1704 | " ") |
| 1705 | (when (or user-init-file custom-file) |
| 1706 | (let ((checked (create-image "checked.xpm" |
| 1707 | nil nil :ascent 'center)) |
| 1708 | (unchecked (create-image "unchecked.xpm" |
| 1709 | nil nil :ascent 'center))) |
| 1710 | (insert-button |
| 1711 | " " |
| 1712 | :on-glyph checked |
| 1713 | :off-glyph unchecked |
| 1714 | 'checked nil 'display unchecked 'follow-link t |
| 1715 | 'action (lambda (button) |
| 1716 | (if (overlay-get button 'checked) |
| 1717 | (progn (overlay-put button 'checked nil) |
| 1718 | (overlay-put button 'display |
| 1719 | (overlay-get button :off-glyph)) |
| 1720 | (setq startup-screen-inhibit-startup-screen |
| 1721 | nil)) |
| 1722 | (overlay-put button 'checked t) |
| 1723 | (overlay-put button 'display |
| 1724 | (overlay-get button :on-glyph)) |
| 1725 | (setq startup-screen-inhibit-startup-screen t))))) |
| 1726 | (fancy-splash-insert :face '(variable-pitch (:height 0.9)) |
| 1727 | " Never show it again.")))) |
| 1728 | |
| 1729 | (defun exit-splash-screen () |
| 1730 | "Stop displaying the splash screen buffer." |
| 1731 | (interactive) |
| 1732 | (quit-window t)) |
| 1733 | |
| 1734 | (defun fancy-startup-screen (&optional concise) |
| 1735 | "Display fancy startup screen. |
| 1736 | If CONCISE is non-nil, display a concise version of the |
| 1737 | splash screen in another window." |
| 1738 | (let ((splash-buffer (get-buffer-create "*GNU Emacs*"))) |
| 1739 | (with-current-buffer splash-buffer |
| 1740 | (let ((inhibit-read-only t)) |
| 1741 | (erase-buffer) |
| 1742 | (setq default-directory command-line-default-directory) |
| 1743 | (make-local-variable 'startup-screen-inhibit-startup-screen) |
| 1744 | (if pure-space-overflow |
| 1745 | (insert pure-space-overflow-message)) |
| 1746 | (unless concise |
| 1747 | (fancy-splash-head)) |
| 1748 | (dolist (text fancy-startup-text) |
| 1749 | (apply #'fancy-splash-insert text) |
| 1750 | (insert "\n")) |
| 1751 | (skip-chars-backward "\n") |
| 1752 | (delete-region (point) (point-max)) |
| 1753 | (insert "\n") |
| 1754 | (fancy-startup-tail concise)) |
| 1755 | (use-local-map splash-screen-keymap) |
| 1756 | (setq-local browse-url-browser-function 'eww-browse-url) |
| 1757 | (setq tab-width 22 |
| 1758 | buffer-read-only t) |
| 1759 | (set-buffer-modified-p nil) |
| 1760 | (if (and view-read-only (not view-mode)) |
| 1761 | (view-mode-enter nil 'kill-buffer)) |
| 1762 | (goto-char (point-min)) |
| 1763 | (forward-line (if concise 2 4))) |
| 1764 | (if concise |
| 1765 | (progn |
| 1766 | (display-buffer splash-buffer) |
| 1767 | ;; If the splash screen is in a split window, fit it. |
| 1768 | (let ((window (get-buffer-window splash-buffer t))) |
| 1769 | (or (null window) |
| 1770 | (eq window (selected-window)) |
| 1771 | (eq window (next-window window)) |
| 1772 | (fit-window-to-buffer window)))) |
| 1773 | (switch-to-buffer splash-buffer)))) |
| 1774 | |
| 1775 | (defun fancy-about-screen () |
| 1776 | "Display fancy About screen." |
| 1777 | (let ((frame (fancy-splash-frame))) |
| 1778 | (save-selected-window |
| 1779 | (select-frame frame) |
| 1780 | (switch-to-buffer "*About GNU Emacs*") |
| 1781 | (setq buffer-undo-list t) |
| 1782 | (let ((inhibit-read-only t)) |
| 1783 | (erase-buffer) |
| 1784 | (if pure-space-overflow |
| 1785 | (insert pure-space-overflow-message)) |
| 1786 | (fancy-splash-head) |
| 1787 | (dolist (text fancy-about-text) |
| 1788 | (apply #'fancy-splash-insert text) |
| 1789 | (insert "\n")) |
| 1790 | (set-buffer-modified-p nil) |
| 1791 | (goto-char (point-min)) |
| 1792 | (force-mode-line-update)) |
| 1793 | (use-local-map splash-screen-keymap) |
| 1794 | (setq-local browse-url-browser-function 'eww-browse-url) |
| 1795 | (setq tab-width 22) |
| 1796 | (setq buffer-read-only t) |
| 1797 | (goto-char (point-min)) |
| 1798 | (forward-line 3)))) |
| 1799 | |
| 1800 | (defun fancy-splash-frame () |
| 1801 | "Return the frame to use for the fancy splash screen. |
| 1802 | Returning non-nil does not mean we should necessarily |
| 1803 | use the fancy splash screen, but if we do use it, |
| 1804 | we put it on this frame." |
| 1805 | (let (chosen-frame) |
| 1806 | ;; MS-Windows needs this to have a chance to make the initial |
| 1807 | ;; frame visible. |
| 1808 | (if (eq system-type 'windows-nt) |
| 1809 | (sit-for 0 t)) |
| 1810 | (dolist (frame (append (frame-list) (list (selected-frame)))) |
| 1811 | (if (and (frame-visible-p frame) |
| 1812 | (not (window-minibuffer-p (frame-selected-window frame)))) |
| 1813 | (setq chosen-frame frame))) |
| 1814 | chosen-frame)) |
| 1815 | |
| 1816 | (defun use-fancy-splash-screens-p () |
| 1817 | "Return t if fancy splash screens should be used." |
| 1818 | (when (and (display-graphic-p) |
| 1819 | (or (and (display-color-p) |
| 1820 | (image-type-available-p 'xpm)) |
| 1821 | (image-type-available-p 'pbm))) |
| 1822 | (let ((frame (fancy-splash-frame))) |
| 1823 | (when frame |
| 1824 | (let* ((img (create-image (fancy-splash-image-file))) |
| 1825 | (image-height (and img (cdr (image-size img nil frame)))) |
| 1826 | ;; We test frame-height so that, if the frame is split |
| 1827 | ;; by displaying a warning, that doesn't cause the normal |
| 1828 | ;; splash screen to be used. |
| 1829 | (frame-height (1- (frame-height frame)))) |
| 1830 | (> frame-height (+ image-height 19))))))) |
| 1831 | |
| 1832 | |
| 1833 | (defun normal-splash-screen (&optional startup concise) |
| 1834 | "Display non-graphic splash screen. |
| 1835 | If optional argument STARTUP is non-nil, display the startup screen |
| 1836 | after Emacs starts. If STARTUP is nil, display the About screen. |
| 1837 | If CONCISE is non-nil, display a concise version of the |
| 1838 | splash screen in another window." |
| 1839 | (let ((splash-buffer (get-buffer-create "*About GNU Emacs*"))) |
| 1840 | (with-current-buffer splash-buffer |
| 1841 | (setq buffer-read-only nil) |
| 1842 | (erase-buffer) |
| 1843 | (setq default-directory command-line-default-directory) |
| 1844 | (set (make-local-variable 'tab-width) 8) |
| 1845 | |
| 1846 | (if pure-space-overflow |
| 1847 | (insert pure-space-overflow-message)) |
| 1848 | |
| 1849 | ;; The convention for this piece of code is that |
| 1850 | ;; each piece of output starts with one or two newlines |
| 1851 | ;; and does not end with any newlines. |
| 1852 | (insert (if startup "Welcome to GNU Emacs" "This is GNU Emacs")) |
| 1853 | (insert |
| 1854 | (if (eq system-type 'gnu/linux) |
| 1855 | ", one component of the GNU/Linux operating system.\n" |
| 1856 | ", a part of the GNU operating system.\n")) |
| 1857 | |
| 1858 | (if startup |
| 1859 | (if (display-mouse-p) |
| 1860 | ;; The user can use the mouse to activate menus |
| 1861 | ;; so give help in terms of menu items. |
| 1862 | (normal-mouse-startup-screen) |
| 1863 | |
| 1864 | ;; No mouse menus, so give help using kbd commands. |
| 1865 | (normal-no-mouse-startup-screen)) |
| 1866 | |
| 1867 | (normal-about-screen)) |
| 1868 | |
| 1869 | ;; The rest of the startup screen is the same on all |
| 1870 | ;; kinds of terminals. |
| 1871 | |
| 1872 | ;; Give information on recovering, if there was a crash. |
| 1873 | (and startup |
| 1874 | auto-save-list-file-prefix |
| 1875 | ;; Don't signal an error if the |
| 1876 | ;; directory for auto-save-list files |
| 1877 | ;; does not yet exist. |
| 1878 | (file-directory-p (file-name-directory |
| 1879 | auto-save-list-file-prefix)) |
| 1880 | (directory-files |
| 1881 | (file-name-directory auto-save-list-file-prefix) |
| 1882 | nil |
| 1883 | (concat "\\`" |
| 1884 | (regexp-quote (file-name-nondirectory |
| 1885 | auto-save-list-file-prefix))) |
| 1886 | t) |
| 1887 | (insert "\n\nIf an Emacs session crashed recently, " |
| 1888 | "type Meta-x recover-session RET\nto recover" |
| 1889 | " the files you were editing.\n")) |
| 1890 | |
| 1891 | (use-local-map splash-screen-keymap) |
| 1892 | |
| 1893 | ;; Display the input that we set up in the buffer. |
| 1894 | (set-buffer-modified-p nil) |
| 1895 | (setq buffer-read-only t) |
| 1896 | (if (and view-read-only (not view-mode)) |
| 1897 | (view-mode-enter nil 'kill-buffer)) |
| 1898 | (if startup (rename-buffer "*GNU Emacs*" t)) |
| 1899 | (goto-char (point-min))) |
| 1900 | (if concise |
| 1901 | (display-buffer splash-buffer) |
| 1902 | (switch-to-buffer splash-buffer)))) |
| 1903 | |
| 1904 | (defun normal-mouse-startup-screen () |
| 1905 | ;; The user can use the mouse to activate menus |
| 1906 | ;; so give help in terms of menu items. |
| 1907 | (insert "\ |
| 1908 | To follow a link, click Mouse-1 on it, or move to it and type RET. |
| 1909 | To quit a partially entered command, type Control-g.\n") |
| 1910 | |
| 1911 | (insert "\nImportant Help menu items:\n") |
| 1912 | (insert-button "Emacs Tutorial" |
| 1913 | 'action (lambda (_button) (help-with-tutorial)) |
| 1914 | 'follow-link t) |
| 1915 | (insert "\t\tLearn basic Emacs keystroke commands\n") |
| 1916 | (insert-button "Read the Emacs Manual" |
| 1917 | 'action (lambda (_button) (info-emacs-manual)) |
| 1918 | 'follow-link t) |
| 1919 | (insert "\tView the Emacs manual using Info\n") |
| 1920 | (insert-button "\(Non)Warranty" |
| 1921 | 'action (lambda (_button) (describe-no-warranty)) |
| 1922 | 'follow-link t) |
| 1923 | (insert "\t\tGNU Emacs comes with ABSOLUTELY NO WARRANTY\n") |
| 1924 | (insert-button "Copying Conditions" |
| 1925 | 'action (lambda (_button) (describe-copying)) |
| 1926 | 'follow-link t) |
| 1927 | (insert "\tConditions for redistributing and changing Emacs\n") |
| 1928 | (insert-button "More Manuals / Ordering Manuals" |
| 1929 | 'action (lambda (_button) (view-order-manuals)) |
| 1930 | 'follow-link t) |
| 1931 | (insert " How to order printed manuals from the FSF\n") |
| 1932 | |
| 1933 | (insert "\nUseful tasks:\n") |
| 1934 | (insert-button "Visit New File" |
| 1935 | 'action (lambda (_button) (call-interactively 'find-file)) |
| 1936 | 'follow-link t) |
| 1937 | (insert "\t\tSpecify a new file's name, to edit the file\n") |
| 1938 | (insert-button "Open Home Directory" |
| 1939 | 'action (lambda (_button) (dired "~")) |
| 1940 | 'follow-link t) |
| 1941 | (insert "\tOpen your home directory, to operate on its files\n") |
| 1942 | (insert-button "Customize Startup" |
| 1943 | 'action (lambda (_button) (customize-group 'initialization)) |
| 1944 | 'follow-link t) |
| 1945 | (insert "\tChange initialization settings including this screen\n") |
| 1946 | |
| 1947 | (insert "\n" (emacs-version) |
| 1948 | "\n" emacs-copyright)) |
| 1949 | |
| 1950 | (defun normal-no-mouse-startup-screen () |
| 1951 | "Show a splash screen suitable for displays without mouse support." |
| 1952 | (let* ((c-h-accessible |
| 1953 | ;; If normal-erase-is-backspace is used on a tty, there's |
| 1954 | ;; no way to invoke C-h and you have to use F1 instead. |
| 1955 | (or (not (char-table-p keyboard-translate-table)) |
| 1956 | (eq (aref keyboard-translate-table ?\C-h) ?\C-h))) |
| 1957 | (minor-mode-overriding-map-alist |
| 1958 | (cons (cons (not c-h-accessible) |
| 1959 | ;; If C-h can't be invoked, temporarily disable its |
| 1960 | ;; binding, so where-is uses alternative bindings. |
| 1961 | (let ((map (make-sparse-keymap))) |
| 1962 | (define-key map [?\C-h] 'undefined) |
| 1963 | map)) |
| 1964 | minor-mode-overriding-map-alist))) |
| 1965 | |
| 1966 | (insert (format "\nGet help\t %s\n" |
| 1967 | (let ((where (where-is-internal 'help-command nil t))) |
| 1968 | (cond |
| 1969 | ((equal where [?\C-h]) |
| 1970 | "C-h (Hold down CTRL and press h)") |
| 1971 | (where (key-description where)) |
| 1972 | (t "M-x help"))))) |
| 1973 | (insert-button "Emacs manual" |
| 1974 | 'action (lambda (_button) (info-emacs-manual)) |
| 1975 | 'follow-link t) |
| 1976 | (insert (substitute-command-keys"\t \\[info-emacs-manual]\t")) |
| 1977 | (insert-button "Browse manuals" |
| 1978 | 'action (lambda (_button) (Info-directory)) |
| 1979 | 'follow-link t) |
| 1980 | (insert (substitute-command-keys "\t \\[info]\n")) |
| 1981 | (insert-button "Emacs tutorial" |
| 1982 | 'action (lambda (_button) (help-with-tutorial)) |
| 1983 | 'follow-link t) |
| 1984 | (insert (substitute-command-keys |
| 1985 | "\t \\[help-with-tutorial]\tUndo changes\t \\[undo]\n")) |
| 1986 | (insert-button "Buy manuals" |
| 1987 | 'action (lambda (_button) (view-order-manuals)) |
| 1988 | 'follow-link t) |
| 1989 | (insert (substitute-command-keys |
| 1990 | "\t \\[view-order-manuals]\tExit Emacs\t \\[save-buffers-kill-terminal]"))) |
| 1991 | |
| 1992 | ;; Say how to use the menu bar with the keyboard. |
| 1993 | (insert "\n") |
| 1994 | (insert-button "Activate menubar" |
| 1995 | 'action (lambda (_button) (tmm-menubar)) |
| 1996 | 'follow-link t) |
| 1997 | (if (and (eq (key-binding "\M-`") 'tmm-menubar) |
| 1998 | (eq (key-binding [f10]) 'tmm-menubar)) |
| 1999 | (insert " F10 or ESC ` or M-`") |
| 2000 | (insert (substitute-command-keys " \\[tmm-menubar]"))) |
| 2001 | |
| 2002 | ;; Many users seem to have problems with these. |
| 2003 | (insert " |
| 2004 | \(`C-' means use the CTRL key. `M-' means use the Meta (or Alt) key. |
| 2005 | If you have no Meta key, you may instead type ESC followed by the character.)") |
| 2006 | |
| 2007 | ;; Insert links to useful tasks |
| 2008 | (insert "\nUseful tasks:\n") |
| 2009 | |
| 2010 | (insert-button "Visit New File" |
| 2011 | 'action (lambda (_button) (call-interactively 'find-file)) |
| 2012 | 'follow-link t) |
| 2013 | (insert "\t\t\t") |
| 2014 | (insert-button "Open Home Directory" |
| 2015 | 'action (lambda (_button) (dired "~")) |
| 2016 | 'follow-link t) |
| 2017 | (insert "\n") |
| 2018 | |
| 2019 | (insert-button "Customize Startup" |
| 2020 | 'action (lambda (_button) (customize-group 'initialization)) |
| 2021 | 'follow-link t) |
| 2022 | (insert "\t\t") |
| 2023 | (insert-button "Open *scratch* buffer" |
| 2024 | 'action (lambda (_button) (switch-to-buffer |
| 2025 | (get-buffer-create "*scratch*"))) |
| 2026 | 'follow-link t) |
| 2027 | (insert "\n") |
| 2028 | (insert "\n" (emacs-version) "\n" emacs-copyright "\n") |
| 2029 | (insert (substitute-command-keys |
| 2030 | " |
| 2031 | GNU Emacs comes with ABSOLUTELY NO WARRANTY; type \\[describe-no-warranty] for ")) |
| 2032 | (insert-button "full details" |
| 2033 | 'action (lambda (_button) (describe-no-warranty)) |
| 2034 | 'follow-link t) |
| 2035 | (insert (substitute-command-keys ". |
| 2036 | Emacs is Free Software--Free as in Freedom--so you can redistribute copies |
| 2037 | of Emacs and modify it; type \\[describe-copying] to see ")) |
| 2038 | (insert-button "the conditions" |
| 2039 | 'action (lambda (_button) (describe-copying)) |
| 2040 | 'follow-link t) |
| 2041 | (insert (substitute-command-keys". |
| 2042 | Type \\[describe-distribution] for information on ")) |
| 2043 | (insert-button "getting the latest version" |
| 2044 | 'action (lambda (_button) (describe-distribution)) |
| 2045 | 'follow-link t) |
| 2046 | (insert ".")) |
| 2047 | |
| 2048 | (defun normal-about-screen () |
| 2049 | (insert "\n" (emacs-version) "\n" emacs-copyright "\n\n") |
| 2050 | |
| 2051 | (insert "To follow a link, click Mouse-1 on it, or move to it and type RET.\n\n") |
| 2052 | |
| 2053 | (insert-button "Authors" |
| 2054 | 'action |
| 2055 | (lambda (_button) |
| 2056 | (view-file (expand-file-name "AUTHORS" data-directory)) |
| 2057 | (goto-char (point-min))) |
| 2058 | 'follow-link t) |
| 2059 | (insert "\t\tMany people have contributed code included in GNU Emacs\n") |
| 2060 | |
| 2061 | (insert-button "Contributing" |
| 2062 | 'action |
| 2063 | (lambda (_button) |
| 2064 | (view-file (expand-file-name "CONTRIBUTE" data-directory)) |
| 2065 | (goto-char (point-min))) |
| 2066 | 'follow-link t) |
| 2067 | (insert "\tHow to contribute improvements to Emacs\n\n") |
| 2068 | |
| 2069 | (insert-button "GNU and Freedom" |
| 2070 | 'action (lambda (_button) (describe-gnu-project)) |
| 2071 | 'follow-link t) |
| 2072 | (insert "\t\tWhy we developed GNU Emacs and the GNU system\n") |
| 2073 | |
| 2074 | (insert-button "Absence of Warranty" |
| 2075 | 'action (lambda (_button) (describe-no-warranty)) |
| 2076 | 'follow-link t) |
| 2077 | (insert "\tGNU Emacs comes with ABSOLUTELY NO WARRANTY\n") |
| 2078 | |
| 2079 | (insert-button "Copying Conditions" |
| 2080 | 'action (lambda (_button) (describe-copying)) |
| 2081 | 'follow-link t) |
| 2082 | (insert "\tConditions for redistributing and changing Emacs\n") |
| 2083 | |
| 2084 | (insert-button "Getting New Versions" |
| 2085 | 'action (lambda (_button) (describe-distribution)) |
| 2086 | 'follow-link t) |
| 2087 | (insert "\tHow to get the latest version of GNU Emacs\n") |
| 2088 | |
| 2089 | (insert-button "More Manuals / Ordering Manuals" |
| 2090 | 'action (lambda (_button) (view-order-manuals)) |
| 2091 | 'follow-link t) |
| 2092 | (insert "\tBuying printed manuals from the FSF\n")) |
| 2093 | |
| 2094 | (defun startup-echo-area-message () |
| 2095 | (if (daemonp) |
| 2096 | "Starting Emacs daemon." |
| 2097 | (substitute-command-keys |
| 2098 | "For information about GNU Emacs and the GNU system, type \ |
| 2099 | \\[about-emacs]."))) |
| 2100 | |
| 2101 | (defun display-startup-echo-area-message () |
| 2102 | (let ((resize-mini-windows t)) |
| 2103 | (or noninteractive ;(input-pending-p) init-file-had-error |
| 2104 | ;; t if the init file says to inhibit the echo area startup message. |
| 2105 | (and inhibit-startup-echo-area-message |
| 2106 | user-init-file |
| 2107 | (or (and (get 'inhibit-startup-echo-area-message 'saved-value) |
| 2108 | (equal inhibit-startup-echo-area-message |
| 2109 | (if (equal init-file-user "") |
| 2110 | (user-login-name) |
| 2111 | init-file-user))) |
| 2112 | ;; Wasn't set with custom; see if .emacs has a setq. |
| 2113 | (condition-case nil |
| 2114 | (with-temp-buffer |
| 2115 | (insert-file-contents user-init-file) |
| 2116 | (re-search-forward |
| 2117 | (concat |
| 2118 | "([ \t\n]*setq[ \t\n]+" |
| 2119 | "inhibit-startup-echo-area-message[ \t\n]+" |
| 2120 | (regexp-quote |
| 2121 | (prin1-to-string |
| 2122 | (if (equal init-file-user "") |
| 2123 | (user-login-name) |
| 2124 | init-file-user))) |
| 2125 | "[ \t\n]*)") |
| 2126 | nil t)) |
| 2127 | (error nil)))) |
| 2128 | (message "%s" (startup-echo-area-message))))) |
| 2129 | |
| 2130 | (defun display-startup-screen (&optional concise) |
| 2131 | "Display startup screen according to display. |
| 2132 | A fancy display is used on graphic displays, normal otherwise. |
| 2133 | |
| 2134 | If CONCISE is non-nil, display a concise version of the startup |
| 2135 | screen." |
| 2136 | ;; Prevent recursive calls from server-process-filter. |
| 2137 | (if (not (get-buffer "*GNU Emacs*")) |
| 2138 | (if (use-fancy-splash-screens-p) |
| 2139 | (fancy-startup-screen concise) |
| 2140 | (normal-splash-screen t concise)))) |
| 2141 | |
| 2142 | (defun display-about-screen () |
| 2143 | "Display the *About GNU Emacs* buffer. |
| 2144 | A fancy display is used on graphic displays, normal otherwise." |
| 2145 | (interactive) |
| 2146 | (if (use-fancy-splash-screens-p) |
| 2147 | (fancy-about-screen) |
| 2148 | (normal-splash-screen nil))) |
| 2149 | |
| 2150 | (defalias 'about-emacs 'display-about-screen) |
| 2151 | (defalias 'display-splash-screen 'display-startup-screen) |
| 2152 | |
| 2153 | (defun command-line-1 (args-left) |
| 2154 | "A subroutine of `command-line'." |
| 2155 | (display-startup-echo-area-message) |
| 2156 | (when (and pure-space-overflow |
| 2157 | (not noninteractive)) |
| 2158 | (display-warning |
| 2159 | 'initialization |
| 2160 | "Building Emacs overflowed pure space.\ |
| 2161 | (See the node Pure Storage in the Lisp manual for details.)" |
| 2162 | :warning)) |
| 2163 | |
| 2164 | (let ((file-count 0) |
| 2165 | (command-line-args-left args-left) |
| 2166 | first-file-buffer) |
| 2167 | (when command-line-args-left |
| 2168 | ;; We have command args; process them. |
| 2169 | (let ((dir command-line-default-directory) |
| 2170 | tem |
| 2171 | ;; This approach loses for "-batch -L DIR --eval "(require foo)", |
| 2172 | ;; if foo is intended to be found in DIR. |
| 2173 | ;; |
| 2174 | ;; The directories listed in --directory/-L options will *appear* |
| 2175 | ;; at the front of `load-path' in the order they appear on the |
| 2176 | ;; command-line. We cannot do this by *placing* them at the front |
| 2177 | ;; in the order they appear, so we need this variable to hold them, |
| 2178 | ;; temporarily. |
| 2179 | ;; |
| 2180 | ;; To DTRT we keep track of the splice point and modify `load-path' |
| 2181 | ;; straight away upon any --directory/-L option. |
| 2182 | splice |
| 2183 | just-files ;; t if this follows the magic -- option. |
| 2184 | ;; This includes our standard options' long versions |
| 2185 | ;; and long versions of what's on command-switch-alist. |
| 2186 | (longopts |
| 2187 | (append '("--funcall" "--load" "--insert" "--kill" |
| 2188 | "--directory" "--eval" "--execute" "--no-splash" |
| 2189 | "--find-file" "--visit" "--file" "--no-desktop") |
| 2190 | (mapcar (lambda (elt) (concat "-" (car elt))) |
| 2191 | command-switch-alist))) |
| 2192 | (line 0) |
| 2193 | (column 0)) |
| 2194 | |
| 2195 | ;; Add the long X options to longopts. |
| 2196 | (dolist (tem command-line-x-option-alist) |
| 2197 | (if (string-match "^--" (car tem)) |
| 2198 | (push (car tem) longopts))) |
| 2199 | |
| 2200 | ;; Add the long NS options to longopts. |
| 2201 | (dolist (tem command-line-ns-option-alist) |
| 2202 | (if (string-match "^--" (car tem)) |
| 2203 | (push (list (car tem)) longopts))) |
| 2204 | |
| 2205 | ;; Loop, processing options. |
| 2206 | (while command-line-args-left |
| 2207 | (let* ((argi (car command-line-args-left)) |
| 2208 | (orig-argi argi) |
| 2209 | argval completion) |
| 2210 | (setq command-line-args-left (cdr command-line-args-left)) |
| 2211 | |
| 2212 | ;; Do preliminary decoding of the option. |
| 2213 | (if just-files |
| 2214 | ;; After --, don't look for options; treat all args as files. |
| 2215 | (setq argi "") |
| 2216 | ;; Convert long options to ordinary options |
| 2217 | ;; and separate out an attached option argument into argval. |
| 2218 | (when (string-match "\\`\\(--[^=]*\\)=" argi) |
| 2219 | (setq argval (substring argi (match-end 0)) |
| 2220 | argi (match-string 1 argi))) |
| 2221 | (when (string-match "\\`--?[^-]" orig-argi) |
| 2222 | (setq completion (try-completion argi longopts)) |
| 2223 | (if (eq completion t) |
| 2224 | (setq argi (substring argi 1)) |
| 2225 | (if (stringp completion) |
| 2226 | (let ((elt (member completion longopts))) |
| 2227 | (or elt |
| 2228 | (error "Option `%s' is ambiguous" argi)) |
| 2229 | (setq argi (substring (car elt) 1))) |
| 2230 | (setq argval nil |
| 2231 | argi orig-argi))))) |
| 2232 | |
| 2233 | ;; Execute the option. |
| 2234 | (cond ((setq tem (assoc argi command-switch-alist)) |
| 2235 | (if argval |
| 2236 | (let ((command-line-args-left |
| 2237 | (cons argval command-line-args-left))) |
| 2238 | (funcall (cdr tem) argi)) |
| 2239 | (funcall (cdr tem) argi))) |
| 2240 | |
| 2241 | ((equal argi "-no-splash") |
| 2242 | (setq inhibit-startup-screen t)) |
| 2243 | |
| 2244 | ((member argi '("-f" ; what the manual claims |
| 2245 | "-funcall" |
| 2246 | "-e")) ; what the source used to say |
| 2247 | (setq inhibit-startup-screen t) |
| 2248 | (setq tem (intern (or argval (pop command-line-args-left)))) |
| 2249 | (if (commandp tem) |
| 2250 | (command-execute tem) |
| 2251 | (funcall tem))) |
| 2252 | |
| 2253 | ((member argi '("-eval" "-execute")) |
| 2254 | (setq inhibit-startup-screen t) |
| 2255 | (eval (read (or argval (pop command-line-args-left))))) |
| 2256 | |
| 2257 | ((member argi '("-L" "-directory")) |
| 2258 | ;; -L :/foo adds /foo to the _end_ of load-path. |
| 2259 | (let (append) |
| 2260 | (if (string-match-p |
| 2261 | (format "\\`%s" path-separator) |
| 2262 | (setq tem (or argval (pop command-line-args-left)))) |
| 2263 | (setq tem (substring tem 1) |
| 2264 | append t)) |
| 2265 | (setq tem (expand-file-name |
| 2266 | (command-line-normalize-file-name tem))) |
| 2267 | (cond (append (setq load-path |
| 2268 | (append load-path (list tem))) |
| 2269 | (if splice (setq splice load-path))) |
| 2270 | (splice (setcdr splice (cons tem (cdr splice))) |
| 2271 | (setq splice (cdr splice))) |
| 2272 | (t (setq load-path (cons tem load-path) |
| 2273 | splice load-path))))) |
| 2274 | |
| 2275 | ((member argi '("-l" "-load")) |
| 2276 | (let* ((file (command-line-normalize-file-name |
| 2277 | (or argval (pop command-line-args-left)))) |
| 2278 | ;; Take file from default dir if it exists there; |
| 2279 | ;; otherwise let `load' search for it. |
| 2280 | (file-ex (expand-file-name file))) |
| 2281 | (when (file-exists-p file-ex) |
| 2282 | (setq file file-ex)) |
| 2283 | (load file nil t))) |
| 2284 | |
| 2285 | ;; This is used to handle -script. It's not clear |
| 2286 | ;; we need to document it (it is totally internal). |
| 2287 | ((member argi '("-scriptload")) |
| 2288 | (let* ((file (command-line-normalize-file-name |
| 2289 | (or argval (pop command-line-args-left)))) |
| 2290 | ;; Take file from default dir. |
| 2291 | (file-ex (expand-file-name file))) |
| 2292 | (load file-ex nil t t))) |
| 2293 | |
| 2294 | ((equal argi "-insert") |
| 2295 | (setq inhibit-startup-screen t) |
| 2296 | (setq tem (or argval (pop command-line-args-left))) |
| 2297 | (or (stringp tem) |
| 2298 | (error "File name omitted from `-insert' option")) |
| 2299 | (insert-file-contents (command-line-normalize-file-name tem))) |
| 2300 | |
| 2301 | ((equal argi "-kill") |
| 2302 | (kill-emacs t)) |
| 2303 | |
| 2304 | ;; This is for when they use --no-desktop with -q, or |
| 2305 | ;; don't load Desktop in their .emacs. If desktop.el |
| 2306 | ;; _is_ loaded, it will handle this switch, and we |
| 2307 | ;; won't see it by the time we get here. |
| 2308 | ((equal argi "-no-desktop") |
| 2309 | (message "\"--no-desktop\" ignored because the Desktop package is not loaded")) |
| 2310 | |
| 2311 | ((string-match "^\\+[0-9]+\\'" argi) |
| 2312 | (setq line (string-to-number argi))) |
| 2313 | |
| 2314 | ((string-match "^\\+\\([0-9]+\\):\\([0-9]+\\)\\'" argi) |
| 2315 | (setq line (string-to-number (match-string 1 argi)) |
| 2316 | column (string-to-number (match-string 2 argi)))) |
| 2317 | |
| 2318 | ((setq tem (assoc orig-argi command-line-x-option-alist)) |
| 2319 | ;; Ignore X-windows options and their args if not using X. |
| 2320 | (setq command-line-args-left |
| 2321 | (nthcdr (nth 1 tem) command-line-args-left))) |
| 2322 | |
| 2323 | ((setq tem (assoc orig-argi command-line-ns-option-alist)) |
| 2324 | ;; Ignore NS-windows options and their args if not using NS. |
| 2325 | (setq command-line-args-left |
| 2326 | (nthcdr (nth 1 tem) command-line-args-left))) |
| 2327 | |
| 2328 | ((member argi '("-find-file" "-file" "-visit")) |
| 2329 | (setq inhibit-startup-screen t) |
| 2330 | ;; An explicit option to specify visiting a file. |
| 2331 | (setq tem (or argval (pop command-line-args-left))) |
| 2332 | (unless (stringp tem) |
| 2333 | (error "File name omitted from `%s' option" argi)) |
| 2334 | (setq file-count (1+ file-count)) |
| 2335 | (let ((file (expand-file-name |
| 2336 | (command-line-normalize-file-name tem) |
| 2337 | dir))) |
| 2338 | (if (= file-count 1) |
| 2339 | (setq first-file-buffer (find-file file)) |
| 2340 | (find-file-other-window file))) |
| 2341 | (unless (zerop line) |
| 2342 | (goto-char (point-min)) |
| 2343 | (forward-line (1- line))) |
| 2344 | (setq line 0) |
| 2345 | (unless (< column 1) |
| 2346 | (move-to-column (1- column))) |
| 2347 | (setq column 0)) |
| 2348 | |
| 2349 | ;; These command lines now have no effect. |
| 2350 | ((string-match "\\`--?\\(no-\\)?\\(uni\\|multi\\)byte$" argi) |
| 2351 | (display-warning 'initialization |
| 2352 | (format "Ignoring obsolete arg %s" argi))) |
| 2353 | |
| 2354 | ((equal argi "--") |
| 2355 | (setq just-files t)) |
| 2356 | (t |
| 2357 | ;; We have almost exhausted our options. See if the |
| 2358 | ;; user has made any other command-line options available |
| 2359 | (let ((hooks command-line-functions) |
| 2360 | (did-hook nil)) |
| 2361 | (while (and hooks |
| 2362 | (not (setq did-hook (funcall (car hooks))))) |
| 2363 | (setq hooks (cdr hooks))) |
| 2364 | (if (not did-hook) |
| 2365 | ;; Presume that the argument is a file name. |
| 2366 | (progn |
| 2367 | (if (string-match "\\`-" argi) |
| 2368 | (error "Unknown option `%s'" argi)) |
| 2369 | (unless initial-window-system |
| 2370 | (setq inhibit-startup-screen t)) |
| 2371 | (setq file-count (1+ file-count)) |
| 2372 | (let ((file |
| 2373 | (expand-file-name |
| 2374 | (command-line-normalize-file-name orig-argi) |
| 2375 | dir))) |
| 2376 | (cond ((= file-count 1) |
| 2377 | (setq first-file-buffer (find-file file))) |
| 2378 | (inhibit-startup-screen |
| 2379 | (find-file-other-window file)) |
| 2380 | (t (find-file file)))) |
| 2381 | (unless (zerop line) |
| 2382 | (goto-char (point-min)) |
| 2383 | (forward-line (1- line))) |
| 2384 | (setq line 0) |
| 2385 | (unless (< column 1) |
| 2386 | (move-to-column (1- column))) |
| 2387 | (setq column 0)))))) |
| 2388 | ;; In unusual circumstances, the execution of Lisp code due |
| 2389 | ;; to command-line options can cause the last visible frame |
| 2390 | ;; to be deleted. In this case, kill emacs to avoid an |
| 2391 | ;; abort later. |
| 2392 | (unless (frame-live-p (selected-frame)) (kill-emacs nil)))))) |
| 2393 | |
| 2394 | (when (eq initial-buffer-choice t) |
| 2395 | ;; When initial-buffer-choice equals t make sure that *scratch* |
| 2396 | ;; exists. |
| 2397 | (get-buffer-create "*scratch*")) |
| 2398 | |
| 2399 | ;; If *scratch* exists and is empty, insert initial-scratch-message. |
| 2400 | ;; Do this before switching to *scratch* below to handle bug#9605. |
| 2401 | (and initial-scratch-message |
| 2402 | (get-buffer "*scratch*") |
| 2403 | (with-current-buffer "*scratch*" |
| 2404 | (when (zerop (buffer-size)) |
| 2405 | (insert initial-scratch-message) |
| 2406 | (set-buffer-modified-p nil)))) |
| 2407 | |
| 2408 | (when initial-buffer-choice |
| 2409 | (let ((buf |
| 2410 | (cond ((stringp initial-buffer-choice) |
| 2411 | (find-file-noselect initial-buffer-choice)) |
| 2412 | ((functionp initial-buffer-choice) |
| 2413 | (funcall initial-buffer-choice))))) |
| 2414 | (switch-to-buffer |
| 2415 | (if (buffer-live-p buf) buf (get-buffer-create "*scratch*")) |
| 2416 | 'norecord))) |
| 2417 | |
| 2418 | (if (or inhibit-startup-screen |
| 2419 | initial-buffer-choice |
| 2420 | noninteractive |
| 2421 | (daemonp) |
| 2422 | inhibit-x-resources) |
| 2423 | |
| 2424 | ;; Not displaying a startup screen. If 3 or more files |
| 2425 | ;; visited, and not all visible, show user what they all are. |
| 2426 | (and (> file-count 2) |
| 2427 | (not noninteractive) |
| 2428 | (not inhibit-startup-buffer-menu) |
| 2429 | (or (get-buffer-window first-file-buffer) |
| 2430 | (list-buffers))) |
| 2431 | |
| 2432 | ;; Display a startup screen, after some preparations. |
| 2433 | |
| 2434 | ;; If there are no switches to process, we might as well |
| 2435 | ;; run this hook now, and there may be some need to do it |
| 2436 | ;; before doing any output. |
| 2437 | (run-hooks 'emacs-startup-hook 'term-setup-hook) |
| 2438 | |
| 2439 | ;; It's important to notice the user settings before we |
| 2440 | ;; display the startup message; otherwise, the settings |
| 2441 | ;; won't take effect until the user gives the first |
| 2442 | ;; keystroke, and that's distracting. |
| 2443 | (when (fboundp 'frame-notice-user-settings) |
| 2444 | (frame-notice-user-settings)) |
| 2445 | |
| 2446 | ;; If there are no switches to process, we might as well |
| 2447 | ;; run this hook now, and there may be some need to do it |
| 2448 | ;; before doing any output. |
| 2449 | (run-hooks 'window-setup-hook) |
| 2450 | |
| 2451 | (setq inhibit-startup-hooks t) |
| 2452 | |
| 2453 | ;; ;; Do this now to avoid an annoying delay if the user |
| 2454 | ;; ;; clicks the menu bar during the sit-for. |
| 2455 | ;; (when (display-popup-menus-p) |
| 2456 | ;; (precompute-menubar-bindings)) |
| 2457 | ;; (with-no-warnings |
| 2458 | ;; (setq menubar-bindings-done t)) |
| 2459 | |
| 2460 | (display-startup-screen (> file-count 0))))) |
| 2461 | |
| 2462 | (defun command-line-normalize-file-name (file) |
| 2463 | "Collapse multiple slashes to one, to handle non-Emacs file names." |
| 2464 | (save-match-data |
| 2465 | ;; Use arg 1 so that we don't collapse // at the start of the file name. |
| 2466 | ;; That is significant on some systems. |
| 2467 | ;; However, /// at the beginning is supposed to mean just /, not //. |
| 2468 | (if (string-match |
| 2469 | (if (memq system-type '(ms-dos windows-nt)) |
| 2470 | "^\\([\\/][\\/][\\/]\\)+" |
| 2471 | "^///+") |
| 2472 | file) |
| 2473 | (setq file (replace-match "/" t t file))) |
| 2474 | (if (memq system-type '(ms-dos windows-nt)) |
| 2475 | (while (string-match "\\([\\/][\\/]\\)+" file 1) |
| 2476 | (setq file (replace-match "/" t t file))) |
| 2477 | (while (string-match "//+" file 1) |
| 2478 | (setq file (replace-match "/" t t file)))) |
| 2479 | file)) |
| 2480 | |
| 2481 | ;;; startup.el ends here |