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5336e829 | 1 | ;;; shell.el --- specialized comint.el for running the shell. |
5109bfb0 | 2 | |
0b3c9cf1 | 3 | ;; Copyright (C) 1988, 1993, 1994, 1995 Free Software Foundation, Inc. |
6d74b528 | 4 | |
630cc463 | 5 | ;; Author: Olin Shivers <shivers@cs.cmu.edu> |
e9933cb1 | 6 | ;; Maintainer: Simon Marshall <simon@gnu.ai.mit.edu> |
d7b4d18f | 7 | ;; Keywords: processes |
630cc463 | 8 | |
5109bfb0 | 9 | ;; This file is part of GNU Emacs. |
c88ab9ce | 10 | |
5109bfb0 KH |
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 2, or (at your option) | |
14 | ;; any later version. | |
c88ab9ce | 15 | |
5109bfb0 KH |
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. | |
c88ab9ce | 20 | |
5109bfb0 KH |
21 | ;; You should have received a copy of the GNU General Public License |
22 | ;; along with GNU Emacs; see the file COPYING. If not, write to | |
23 | ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
be9b65ac | 24 | |
630cc463 ER |
25 | ;;; Commentary: |
26 | ||
a9ec2adb JB |
27 | ;;; Please send me bug reports, bug fixes, and extensions, so that I can |
28 | ;;; merge them into the master source. | |
29 | ;;; - Olin Shivers (shivers@cs.cmu.edu) | |
e9933cb1 | 30 | ;;; - Simon Marshall (simon@gnu.ai.mit.edu) |
be9b65ac | 31 | |
a9ec2adb | 32 | ;;; This file defines a a shell-in-a-buffer package (shell mode) built |
c88ab9ce ER |
33 | ;;; on top of comint mode. This is actually cmushell with things |
34 | ;;; renamed to replace its counterpart in Emacs 18. cmushell is more | |
35 | ;;; featureful, robust, and uniform than the Emacs 18 version. | |
be9b65ac DL |
36 | |
37 | ;;; Since this mode is built on top of the general command-interpreter-in- | |
38 | ;;; a-buffer mode (comint mode), it shares a common base functionality, | |
39 | ;;; and a common set of bindings, with all modes derived from comint mode. | |
a9ec2adb | 40 | ;;; This makes these modes easier to use. |
be9b65ac DL |
41 | |
42 | ;;; For documentation on the functionality provided by comint mode, and | |
43 | ;;; the hooks available for customising it, see the file comint.el. | |
a9ec2adb | 44 | ;;; For further information on shell mode, see the comments below. |
be9b65ac DL |
45 | |
46 | ;;; Needs fixin: | |
47 | ;;; When sending text from a source file to a subprocess, the process-mark can | |
48 | ;;; move off the window, so you can lose sight of the process interactions. | |
49 | ;;; Maybe I should ensure the process mark is in the window when I send | |
50 | ;;; text to the process? Switch selectable? | |
51 | ||
a9ec2adb JB |
52 | ;; YOUR .EMACS FILE |
53 | ;;============================================================================= | |
54 | ;; Some suggestions for your .emacs file. | |
55 | ;; | |
0b3c9cf1 SM |
56 | ;; ;; Define M-# to run some strange command: |
57 | ;; (eval-after-load "shell" | |
58 | ;; '(define-key shell-mode-map "\M-#" 'shells-dynamic-spell)) | |
a9ec2adb JB |
59 | \f |
60 | ;;; Brief Command Documentation: | |
61 | ;;;============================================================================ | |
62 | ;;; Comint Mode Commands: (common to shell and all comint-derived modes) | |
63 | ;;; | |
64 | ;;; m-p comint-previous-input Cycle backwards in input history | |
65 | ;;; m-n comint-next-input Cycle forwards | |
d76b71af | 66 | ;;; m-r comint-previous-matching-input Previous input matching a regexp |
d76b71af | 67 | ;;; m-s comint-next-matching-input Next input that matches |
f5a131d8 | 68 | ;;; m-c-l comint-show-output Show last batch of process output |
a9ec2adb | 69 | ;;; return comint-send-input |
a9ec2adb | 70 | ;;; c-d comint-delchar-or-maybe-eof Delete char unless at end of buff. |
8137dca9 | 71 | ;;; c-c c-a comint-bol Beginning of line; skip prompt |
a9ec2adb JB |
72 | ;;; c-c c-u comint-kill-input ^u |
73 | ;;; c-c c-w backward-kill-word ^w | |
74 | ;;; c-c c-c comint-interrupt-subjob ^c | |
75 | ;;; c-c c-z comint-stop-subjob ^z | |
76 | ;;; c-c c-\ comint-quit-subjob ^\ | |
77 | ;;; c-c c-o comint-kill-output Delete last batch of process output | |
78 | ;;; c-c c-r comint-show-output Show last batch of process output | |
d76b71af | 79 | ;;; c-c c-h comint-dynamic-list-input-ring List input history |
a9ec2adb JB |
80 | ;;; send-invisible Read line w/o echo & send to proc |
81 | ;;; comint-continue-subjob Useful if you accidentally suspend | |
d76b71af | 82 | ;;; top-level job |
a9ec2adb JB |
83 | ;;; comint-mode-hook is the comint mode hook. |
84 | ||
85 | ;;; Shell Mode Commands: | |
7b4c6503 SM |
86 | ;;; shell Fires up the shell process |
87 | ;;; tab comint-dynamic-complete Complete filename/command/history | |
88 | ;;; m-? comint-dynamic-list-filename-completions | |
89 | ;;; List completions in help buffer | |
90 | ;;; m-c-f shell-forward-command Forward a shell command | |
91 | ;;; m-c-b shell-backward-command Backward a shell command | |
92 | ;;; dirs Resync the buffer's dir stack | |
93 | ;;; dirtrack-toggle Turn dir tracking on/off | |
94 | ;;; comint-strip-ctrl-m Remove trailing ^Ms from output | |
a9ec2adb JB |
95 | ;;; |
96 | ;;; The shell mode hook is shell-mode-hook | |
a9ec2adb JB |
97 | ;;; comint-prompt-regexp is initialised to shell-prompt-pattern, for backwards |
98 | ;;; compatibility. | |
99 | ||
100 | ;;; Read the rest of this file for more information. | |
101 | \f | |
8f95f0ce | 102 | ;;; Customization and Buffer Variables |
a9ec2adb JB |
103 | ;;; =========================================================================== |
104 | ;;; | |
105 | ||
630cc463 ER |
106 | ;;; Code: |
107 | ||
108 | (require 'comint) | |
109 | ||
c88ab9ce | 110 | ;;;###autoload |
ac75ef20 | 111 | (defvar shell-prompt-pattern "^[^#$%>\n]*[#$%>] *" |
a9ec2adb | 112 | "Regexp to match prompts in the inferior shell. |
ac75ef20 | 113 | Defaults to \"^[^#$%>\\n]*[#$%>] *\", which works pretty well. |
24fdffaa | 114 | This variable is used to initialise `comint-prompt-regexp' in the |
a9ec2adb JB |
115 | shell buffer. |
116 | ||
ac75ef20 JB |
117 | The pattern should probably not match more than one line. If it does, |
118 | shell-mode may become confused trying to distinguish prompt from input | |
119 | on lines which don't start with a prompt. | |
120 | ||
24fdffaa | 121 | This is a fine thing to set in your `.emacs' file.") |
a9ec2adb | 122 | |
e11284d5 RS |
123 | (defvar shell-completion-fignore nil |
124 | "*List of suffixes to be disregarded during file/command completion. | |
125 | This variable is used to initialize `comint-completion-fignore' in the shell | |
126 | buffer. The default is nil, for compatibility with most shells. | |
127 | Some people like (\"~\" \"#\" \"%\"). | |
128 | ||
129 | This is a fine thing to set in your `.emacs' file.") | |
130 | ||
56eb1060 | 131 | (defvar shell-delimiter-argument-list '(?\| ?& ?< ?> ?\( ?\) ?\;) |
d76b71af | 132 | "List of characters to recognise as separate arguments. |
56eb1060 RS |
133 | This variable is used to initialize `comint-delimiter-argument-list' in the |
134 | shell buffer. The default is (?\\| ?& ?< ?> ?\\( ?\\) ?\\;). | |
d76b71af RS |
135 | |
136 | This is a fine thing to set in your `.emacs' file.") | |
137 | ||
7b4c6503 SM |
138 | (defvar shell-file-name-quote-list |
139 | (append shell-delimiter-argument-list '(?\ ?\* ?\! ?\" ?\' ?\`)) | |
140 | "List of characters to quote when in a file name. | |
141 | This variable is used to initialize `comint-file-name-quote-list' in the | |
142 | shell buffer. The default is (?\ ?\* ?\! ?\" ?\' ?\`) plus characters | |
143 | in `shell-delimiter-argument-list'. | |
144 | ||
145 | This is a fine thing to set in your `.emacs' file.") | |
146 | ||
988a4d60 RS |
147 | (defvar shell-dynamic-complete-functions |
148 | '(comint-replace-by-expanded-history | |
149 | shell-dynamic-complete-environment-variable | |
150 | shell-dynamic-complete-command | |
151 | shell-replace-by-expanded-directory | |
152 | comint-dynamic-complete-filename) | |
153 | "List of functions called to perform completion. | |
154 | This variable is used to initialise `comint-dynamic-complete-functions' in the | |
155 | shell buffer. | |
156 | ||
157 | This is a fine thing to set in your `.emacs' file.") | |
158 | ||
a8e0effb RS |
159 | (defvar shell-command-regexp "[^;&|\n]+" |
160 | "*Regexp to match a single command within a pipeline. | |
161 | This is used for directory tracking and does not do a perfect job.") | |
d76b71af RS |
162 | |
163 | (defvar shell-completion-execonly t | |
164 | "*If non-nil, use executable files only for completion candidates. | |
5394cb44 | 165 | This mirrors the optional behavior of tcsh. |
d76b71af RS |
166 | |
167 | Detecting executability of files may slow command completion considerably.") | |
168 | ||
be9b65ac DL |
169 | (defvar shell-popd-regexp "popd" |
170 | "*Regexp to match subshell commands equivalent to popd.") | |
171 | ||
172 | (defvar shell-pushd-regexp "pushd" | |
173 | "*Regexp to match subshell commands equivalent to pushd.") | |
174 | ||
d76b71af RS |
175 | (defvar shell-pushd-tohome nil |
176 | "*If non-nil, make pushd with no arg behave as \"pushd ~\" (like cd). | |
5394cb44 | 177 | This mirrors the optional behavior of tcsh.") |
d76b71af RS |
178 | |
179 | (defvar shell-pushd-dextract nil | |
180 | "*If non-nil, make \"pushd +n\" pop the nth dir to the stack top. | |
5394cb44 | 181 | This mirrors the optional behavior of tcsh.") |
d76b71af RS |
182 | |
183 | (defvar shell-pushd-dunique nil | |
184 | "*If non-nil, make pushd only add unique directories to the stack. | |
5394cb44 | 185 | This mirrors the optional behavior of tcsh.") |
d76b71af | 186 | |
be9b65ac DL |
187 | (defvar shell-cd-regexp "cd" |
188 | "*Regexp to match subshell commands equivalent to cd.") | |
189 | ||
190 | (defvar explicit-shell-file-name nil | |
191 | "*If non-nil, is file name to use for explicitly requested inferior shell.") | |
192 | ||
193 | (defvar explicit-csh-args | |
194 | (if (eq system-type 'hpux) | |
195 | ;; -T persuades HP's csh not to think it is smarter | |
196 | ;; than us about what terminal modes to use. | |
197 | '("-i" "-T") | |
198 | '("-i")) | |
199 | "*Args passed to inferior shell by M-x shell, if the shell is csh. | |
200 | Value is a list of strings, which may be nil.") | |
201 | ||
4f99443b RS |
202 | (defvar shell-input-autoexpand 'history |
203 | "*If non-nil, expand input command history references on completion. | |
204 | This mirrors the optional behavior of tcsh (its autoexpand and histlit). | |
205 | ||
206 | If the value is `input', then the expansion is seen on input. | |
207 | If the value is `history', then the expansion is only when inserting | |
208 | into the buffer's input ring. See also `comint-magic-space' and | |
209 | `comint-dynamic-complete'. | |
210 | ||
211 | This variable supplies a default for `comint-input-autoexpand', | |
212 | for Shell mode only.") | |
213 | ||
be9b65ac | 214 | (defvar shell-dirstack nil |
c88ab9ce ER |
215 | "List of directories saved by pushd in this buffer's shell. |
216 | Thus, this does not include the shell's current directory.") | |
be9b65ac | 217 | |
b493a9b2 RS |
218 | (defvar shell-dirtrackp t |
219 | "Non-nil in a shell buffer means directory tracking is enabled.") | |
220 | ||
fa8f1b25 ER |
221 | (defvar shell-last-dir nil |
222 | "Keep track of last directory for ksh `cd -' command.") | |
223 | ||
c63e83a4 | 224 | (defvar shell-dirstack-query nil |
24fdffaa | 225 | "Command used by `shell-resync-dir' to query the shell.") |
be9b65ac | 226 | |
9376442d | 227 | (defvar shell-mode-map nil) |
be9b65ac | 228 | (cond ((not shell-mode-map) |
1ed30e75 | 229 | (setq shell-mode-map (nconc (make-sparse-keymap) comint-mode-map)) |
d76b71af RS |
230 | (define-key shell-mode-map "\C-c\C-f" 'shell-forward-command) |
231 | (define-key shell-mode-map "\C-c\C-b" 'shell-backward-command) | |
be9b65ac | 232 | (define-key shell-mode-map "\t" 'comint-dynamic-complete) |
d76b71af | 233 | (define-key shell-mode-map "\M-?" |
988a4d60 | 234 | 'comint-dynamic-list-filename-completions) |
1ed30e75 RS |
235 | (define-key shell-mode-map [menu-bar completion] |
236 | (copy-keymap (lookup-key comint-mode-map [menu-bar completion]))) | |
5109bfb0 KH |
237 | (define-key-after (lookup-key shell-mode-map [menu-bar completion]) |
238 | [complete-env-variable] '("Complete Env. Variable Name" . | |
239 | shell-dynamic-complete-environment-variable) | |
240 | 'complete-file) | |
241 | (define-key-after (lookup-key shell-mode-map [menu-bar completion]) | |
242 | [expand-directory] '("Expand Directory Reference" . | |
243 | shell-replace-by-expanded-directory) | |
244 | 'complete-expand))) | |
be9b65ac DL |
245 | |
246 | (defvar shell-mode-hook '() | |
24fdffaa | 247 | "*Hook for customising Shell mode.") |
be9b65ac | 248 | |
5945a1f7 RS |
249 | (defvar shell-font-lock-keywords |
250 | (list (cons shell-prompt-pattern 'font-lock-keyword-face) | |
251 | '("[ \t]\\([+-][^ \t\n]+\\)" 1 font-lock-comment-face) | |
86a21134 | 252 | '("^[^ \t\n]+:.*" . font-lock-string-face) |
5945a1f7 RS |
253 | '("^\\[[1-9][0-9]*\\]" . font-lock-string-face)) |
254 | "Additional expressions to highlight in Shell mode.") | |
be9b65ac DL |
255 | \f |
256 | ;;; Basic Procedures | |
257 | ;;; =========================================================================== | |
258 | ;;; | |
259 | ||
260 | (defun shell-mode () | |
261 | "Major mode for interacting with an inferior shell. | |
8079b590 SM |
262 | \\[comint-send-input] after the end of the process' output sends the text from |
263 | the end of process to the end of the current line. | |
264 | \\[comint-send-input] before end of process output copies the current line minus the prompt to | |
265 | the end of the buffer and sends it (\\[comint-copy-old-input] just copies the current line). | |
e9933cb1 | 266 | \\[send-invisible] reads a line of text without echoing it, and sends it to |
56783585 RS |
267 | the shell. This is useful for entering passwords. Or, add the function |
268 | `comint-watch-for-password-prompt' to `comint-output-filter-functions'. | |
be9b65ac | 269 | |
e9933cb1 SM |
270 | If you want to make multiple shell buffers, rename the `*shell*' buffer |
271 | using \\[rename-buffer] or \\[rename-uniquely] and start a new shell. | |
272 | ||
8079b590 | 273 | If you want to make shell buffers limited in length, add the function |
4841acc4 | 274 | `comint-truncate-buffer' to `comint-output-filter-functions'. |
8079b590 | 275 | |
be9b65ac DL |
276 | If you accidentally suspend your process, use \\[comint-continue-subjob] |
277 | to continue it. | |
278 | ||
e9933cb1 SM |
279 | `cd', `pushd' and `popd' commands given to the shell are watched by Emacs to |
280 | keep this buffer's default directory the same as the shell's working directory. | |
0b3c9cf1 SM |
281 | While directory tracking is enabled, the shell's working directory is displayed |
282 | by \\[list-buffers] or \\[mouse-buffer-menu] in the `File' field. | |
e9933cb1 | 283 | \\[dirs] queries the shell and resyncs Emacs' idea of what the current |
be9b65ac | 284 | directory stack is. |
e9933cb1 | 285 | \\[dirtrack-toggle] turns directory tracking on and off. |
be9b65ac DL |
286 | |
287 | \\{shell-mode-map} | |
24fdffaa | 288 | Customization: Entry to this mode runs the hooks on `comint-mode-hook' and |
988a4d60 | 289 | `shell-mode-hook' (in that order). Before each input, the hooks on |
ba02c167 RS |
290 | `comint-input-filter-functions' are run. After each shell output, the hooks |
291 | on `comint-output-filter-functions' are run. | |
be9b65ac | 292 | |
24fdffaa | 293 | Variables `shell-cd-regexp', `shell-pushd-regexp' and `shell-popd-regexp' |
d76b71af | 294 | are used to match their respective commands, while `shell-pushd-tohome', |
5394cb44 | 295 | `shell-pushd-dextract' and `shell-pushd-dunique' control the behavior of the |
d76b71af RS |
296 | relevant command. |
297 | ||
e11284d5 RS |
298 | Variables `comint-completion-autolist', `comint-completion-addsuffix', |
299 | `comint-completion-recexact' and `comint-completion-fignore' control the | |
300 | behavior of file name, command name and variable name completion. Variable | |
301 | `shell-completion-execonly' controls the behavior of command name completion. | |
302 | Variable `shell-completion-fignore' is used to initialise the value of | |
303 | `comint-completion-fignore'. | |
d76b71af RS |
304 | |
305 | Variables `comint-input-ring-file-name' and `comint-input-autoexpand' control | |
306 | the initialisation of the input ring history, and history expansion. | |
307 | ||
ba02c167 | 308 | Variables `comint-output-filter-functions', a hook, and |
e11284d5 | 309 | `comint-scroll-to-bottom-on-input' and `comint-scroll-to-bottom-on-output' |
988a4d60 RS |
310 | control whether input and output cause the window to scroll to the end of the |
311 | buffer." | |
be9b65ac DL |
312 | (interactive) |
313 | (comint-mode) | |
a9ec2adb | 314 | (setq major-mode 'shell-mode) |
bd5201e3 | 315 | (setq mode-name "Shell") |
be9b65ac | 316 | (use-local-map shell-mode-map) |
d76b71af | 317 | (setq comint-prompt-regexp shell-prompt-pattern) |
e11284d5 | 318 | (setq comint-completion-fignore shell-completion-fignore) |
d76b71af | 319 | (setq comint-delimiter-argument-list shell-delimiter-argument-list) |
7b4c6503 | 320 | (setq comint-file-name-quote-list shell-file-name-quote-list) |
988a4d60 | 321 | (setq comint-dynamic-complete-functions shell-dynamic-complete-functions) |
d76b71af RS |
322 | (make-local-variable 'paragraph-start) |
323 | (setq paragraph-start comint-prompt-regexp) | |
c156572f SM |
324 | (make-local-variable 'font-lock-defaults) |
325 | (setq font-lock-defaults '(shell-font-lock-keywords t)) | |
be9b65ac | 326 | (make-local-variable 'shell-dirstack) |
a9ec2adb | 327 | (setq shell-dirstack nil) |
fa8f1b25 | 328 | (setq shell-last-dir nil) |
a9ec2adb JB |
329 | (make-local-variable 'shell-dirtrackp) |
330 | (setq shell-dirtrackp t) | |
1458efa0 | 331 | (add-hook 'comint-input-filter-functions 'shell-directory-tracker nil t) |
4f99443b | 332 | (setq comint-input-autoexpand shell-input-autoexpand) |
0b3c9cf1 SM |
333 | (make-local-variable 'list-buffers-directory) |
334 | (setq list-buffers-directory (expand-file-name default-directory)) | |
d76b71af | 335 | ;; shell-dependent assignments. |
c63e83a4 RS |
336 | (let ((shell (file-name-nondirectory (car |
337 | (process-command (get-buffer-process (current-buffer))))))) | |
d76b71af RS |
338 | (setq comint-input-ring-file-name |
339 | (or (getenv "HISTFILE") | |
c63e83a4 RS |
340 | (cond ((string-equal shell "bash") "~/.bash_history") |
341 | ((string-equal shell "ksh") "~/.sh_history") | |
342 | (t "~/.history")))) | |
525c5be7 SM |
343 | (if (or (equal comint-input-ring-file-name "") |
344 | (equal (file-truename comint-input-ring-file-name) "/dev/null")) | |
3c24374d | 345 | (setq comint-input-ring-file-name nil)) |
c63e83a4 RS |
346 | (setq shell-dirstack-query |
347 | (if (string-match "^k?sh$" shell) "pwd" "dirs"))) | |
d76b71af | 348 | (run-hooks 'shell-mode-hook) |
4f99443b | 349 | (comint-read-input-ring t)) |
be9b65ac | 350 | \f |
c88ab9ce | 351 | ;;;###autoload |
be9b65ac DL |
352 | (defun shell () |
353 | "Run an inferior shell, with I/O through buffer *shell*. | |
354 | If buffer exists but shell process is not running, make new shell. | |
d76b71af | 355 | If buffer exists and shell process is running, just switch to buffer `*shell*'. |
24fdffaa | 356 | Program used comes from variable `explicit-shell-file-name', |
a9ec2adb JB |
357 | or (if that is nil) from the ESHELL environment variable, |
358 | or else from SHELL if there is no ESHELL. | |
fbc270e7 | 359 | If a file `~/.emacs_SHELLNAME' exists, it is given as initial input |
a9ec2adb JB |
360 | (Note that this may lose due to a timing error if the shell |
361 | discards input when it starts up.) | |
fbc270e7 RS |
362 | The buffer is put in Shell mode, giving commands for sending input |
363 | and controlling the subjobs of the shell. See `shell-mode'. | |
364 | See also the variable `shell-prompt-pattern'. | |
be9b65ac | 365 | |
a9ec2adb | 366 | The shell file name (sans directories) is used to make a symbol name |
62c9fad7 | 367 | such as `explicit-csh-args'. If that symbol is a variable, |
be9b65ac DL |
368 | its value is used as a list of arguments when invoking the shell. |
369 | Otherwise, one argument `-i' is passed to the shell. | |
370 | ||
371 | \(Type \\[describe-mode] in the shell buffer for a list of commands.)" | |
372 | (interactive) | |
d76b71af RS |
373 | (if (not (comint-check-proc "*shell*")) |
374 | (let* ((prog (or explicit-shell-file-name | |
375 | (getenv "ESHELL") | |
376 | (getenv "SHELL") | |
377 | "/bin/sh")) | |
378 | (name (file-name-nondirectory prog)) | |
379 | (startfile (concat "~/.emacs_" name)) | |
519bfec4 RS |
380 | (xargs-name (intern-soft (concat "explicit-" name "-args"))) |
381 | shell-buffer) | |
382 | (save-excursion | |
383 | (set-buffer (apply 'make-comint "shell" prog | |
384 | (if (file-exists-p startfile) startfile) | |
385 | (if (and xargs-name (boundp xargs-name)) | |
386 | (symbol-value xargs-name) | |
387 | '("-i")))) | |
388 | (setq shell-buffer (current-buffer)) | |
389 | (shell-mode)) | |
390 | (pop-to-buffer shell-buffer)) | |
391 | (pop-to-buffer "*shell*"))) | |
392 | ||
393 | ;;; Don't do this when shell.el is loaded, only while dumping. | |
394 | ;;;###autoload (add-hook 'same-window-buffer-names "*shell*") | |
be9b65ac DL |
395 | \f |
396 | ;;; Directory tracking | |
397 | ;;; =========================================================================== | |
398 | ;;; This code provides the shell mode input sentinel | |
399 | ;;; SHELL-DIRECTORY-TRACKER | |
400 | ;;; that tracks cd, pushd, and popd commands issued to the shell, and | |
401 | ;;; changes the current directory of the shell buffer accordingly. | |
402 | ;;; | |
403 | ;;; This is basically a fragile hack, although it's more accurate than | |
b7fc702e | 404 | ;;; the version in Emacs 18's shell.el. It has the following failings: |
be9b65ac | 405 | ;;; 1. It doesn't know about the cdpath shell variable. |
d76b71af RS |
406 | ;;; 2. It cannot infallibly deal with command sequences, though it does well |
407 | ;;; with these and with ignoring commands forked in another shell with ()s. | |
408 | ;;; 3. More generally, any complex command is going to throw it. Otherwise, | |
409 | ;;; you'd have to build an entire shell interpreter in emacs lisp. Failing | |
410 | ;;; that, there's no way to catch shell commands where cd's are buried | |
411 | ;;; inside conditional expressions, aliases, and so forth. | |
be9b65ac DL |
412 | ;;; |
413 | ;;; The whole approach is a crock. Shell aliases mess it up. File sourcing | |
414 | ;;; messes it up. You run other processes under the shell; these each have | |
415 | ;;; separate working directories, and some have commands for manipulating | |
416 | ;;; their w.d.'s (e.g., the lcd command in ftp). Some of these programs have | |
a9ec2adb | 417 | ;;; commands that do *not* affect the current w.d. at all, but look like they |
be9b65ac DL |
418 | ;;; do (e.g., the cd command in ftp). In shells that allow you job |
419 | ;;; control, you can switch between jobs, all having different w.d.'s. So | |
420 | ;;; simply saying %3 can shift your w.d.. | |
421 | ;;; | |
422 | ;;; The solution is to relax, not stress out about it, and settle for | |
423 | ;;; a hack that works pretty well in typical circumstances. Remember | |
424 | ;;; that a half-assed solution is more in keeping with the spirit of Unix, | |
425 | ;;; anyway. Blech. | |
426 | ;;; | |
427 | ;;; One good hack not implemented here for users of programmable shells | |
428 | ;;; is to program up the shell w.d. manipulation commands to output | |
429 | ;;; a coded command sequence to the tty. Something like | |
430 | ;;; ESC | <cwd> | | |
431 | ;;; where <cwd> is the new current working directory. Then trash the | |
432 | ;;; directory tracking machinery currently used in this package, and | |
433 | ;;; replace it with a process filter that watches for and strips out | |
434 | ;;; these messages. | |
435 | ||
be9b65ac DL |
436 | (defun shell-directory-tracker (str) |
437 | "Tracks cd, pushd and popd commands issued to the shell. | |
438 | This function is called on each input passed to the shell. | |
439 | It watches for cd, pushd and popd commands and sets the buffer's | |
440 | default directory to track these commands. | |
441 | ||
442 | You may toggle this tracking on and off with M-x dirtrack-toggle. | |
443 | If emacs gets confused, you can resync with the shell with M-x dirs. | |
444 | ||
d76b71af RS |
445 | See variables `shell-cd-regexp', `shell-pushd-regexp', and `shell-popd-regexp', |
446 | while `shell-pushd-tohome', `shell-pushd-dextract' and `shell-pushd-dunique' | |
5394cb44 | 447 | control the behavior of the relevant command. |
d76b71af | 448 | |
24fdffaa | 449 | Environment variables are expanded, see function `substitute-in-file-name'." |
d76b71af RS |
450 | (if shell-dirtrackp |
451 | ;; We fail gracefully if we think the command will fail in the shell. | |
452 | (condition-case chdir-failure | |
54021695 | 453 | (let ((start (progn (string-match "^[; \t]*" str) ; skip whitespace |
d76b71af RS |
454 | (match-end 0))) |
455 | end cmd arg1) | |
456 | (while (string-match shell-command-regexp str start) | |
457 | (setq end (match-end 0) | |
458 | cmd (comint-arguments (substring str start end) 0 0) | |
459 | arg1 (comint-arguments (substring str start end) 1 1)) | |
54021695 KH |
460 | (cond ((string-match (concat "\\`\\(" shell-popd-regexp |
461 | "\\)\\($\\|[ \t]\\)") | |
462 | cmd) | |
d76b71af | 463 | (shell-process-popd (substitute-in-file-name arg1))) |
54021695 KH |
464 | ((string-match (concat "\\`\\(" shell-pushd-regexp |
465 | "\\)\\($\\|[ \t]\\)") | |
466 | cmd) | |
d76b71af | 467 | (shell-process-pushd (substitute-in-file-name arg1))) |
54021695 KH |
468 | ((string-match (concat "\\`\\(" shell-cd-regexp |
469 | "\\)\\($\\|[ \t]\\)") | |
470 | cmd) | |
d76b71af | 471 | (shell-process-cd (substitute-in-file-name arg1)))) |
54021695 | 472 | (setq start (progn (string-match "[; \t]*" str end) ; skip again |
d76b71af | 473 | (match-end 0))))) |
ba02c167 | 474 | (error "Couldn't cd")))) |
d76b71af | 475 | |
be9b65ac DL |
476 | ;;; popd [+n] |
477 | (defun shell-process-popd (arg) | |
d76b71af RS |
478 | (let ((num (or (shell-extract-num arg) 0))) |
479 | (cond ((and num (= num 0) shell-dirstack) | |
0b3c9cf1 | 480 | (shell-cd (car shell-dirstack)) |
d76b71af RS |
481 | (setq shell-dirstack (cdr shell-dirstack)) |
482 | (shell-dirstack-message)) | |
483 | ((and num (> num 0) (<= num (length shell-dirstack))) | |
484 | (let* ((ds (cons nil shell-dirstack)) | |
485 | (cell (nthcdr (1- num) ds))) | |
486 | (rplacd cell (cdr (cdr cell))) | |
487 | (setq shell-dirstack (cdr ds)) | |
488 | (shell-dirstack-message))) | |
489 | (t | |
ba02c167 | 490 | (error "Couldn't popd"))))) |
be9b65ac | 491 | |
3db9a4eb | 492 | ;; Return DIR prefixed with comint-file-name-prefix as appropriate. |
4a02b552 RS |
493 | (defun shell-prefixed-directory-name (dir) |
494 | (if (= (length comint-file-name-prefix) 0) | |
495 | dir | |
496 | (if (file-name-absolute-p dir) | |
497 | ;; The name is absolute, so prepend the prefix. | |
498 | (concat comint-file-name-prefix dir) | |
0b3c9cf1 | 499 | ;; For relative name we assume default-directory already has the prefix. |
4a02b552 | 500 | (expand-file-name dir)))) |
3db9a4eb | 501 | |
be9b65ac DL |
502 | ;;; cd [dir] |
503 | (defun shell-process-cd (arg) | |
3db9a4eb RM |
504 | (let ((new-dir (cond ((zerop (length arg)) (concat comint-file-name-prefix |
505 | "~")) | |
d76b71af | 506 | ((string-equal "-" arg) shell-last-dir) |
3db9a4eb | 507 | (t (shell-prefixed-directory-name arg))))) |
d76b71af | 508 | (setq shell-last-dir default-directory) |
0b3c9cf1 | 509 | (shell-cd new-dir) |
d76b71af | 510 | (shell-dirstack-message))) |
be9b65ac DL |
511 | |
512 | ;;; pushd [+n | dir] | |
513 | (defun shell-process-pushd (arg) | |
d76b71af RS |
514 | (let ((num (shell-extract-num arg))) |
515 | (cond ((zerop (length arg)) | |
516 | ;; no arg -- swap pwd and car of stack unless shell-pushd-tohome | |
517 | (cond (shell-pushd-tohome | |
3db9a4eb | 518 | (shell-process-pushd (concat comint-file-name-prefix "~"))) |
d76b71af RS |
519 | (shell-dirstack |
520 | (let ((old default-directory)) | |
0b3c9cf1 | 521 | (shell-cd (car shell-dirstack)) |
d76b71af RS |
522 | (setq shell-dirstack |
523 | (cons old (cdr shell-dirstack))) | |
524 | (shell-dirstack-message))) | |
525 | (t | |
526 | (message "Directory stack empty.")))) | |
527 | ((numberp num) | |
528 | ;; pushd +n | |
529 | (cond ((> num (length shell-dirstack)) | |
530 | (message "Directory stack not that deep.")) | |
531 | ((= num 0) | |
532 | (error (message "Couldn't cd."))) | |
533 | (shell-pushd-dextract | |
534 | (let ((dir (nth (1- num) shell-dirstack))) | |
535 | (shell-process-popd arg) | |
536 | (shell-process-pushd default-directory) | |
0b3c9cf1 | 537 | (shell-cd dir) |
d76b71af RS |
538 | (shell-dirstack-message))) |
539 | (t | |
540 | (let* ((ds (cons default-directory shell-dirstack)) | |
541 | (dslen (length ds)) | |
542 | (front (nthcdr num ds)) | |
543 | (back (reverse (nthcdr (- dslen num) (reverse ds)))) | |
544 | (new-ds (append front back))) | |
0b3c9cf1 | 545 | (shell-cd (car new-ds)) |
d76b71af RS |
546 | (setq shell-dirstack (cdr new-ds)) |
547 | (shell-dirstack-message))))) | |
548 | (t | |
549 | ;; pushd <dir> | |
550 | (let ((old-wd default-directory)) | |
0b3c9cf1 | 551 | (shell-cd (shell-prefixed-directory-name arg)) |
d76b71af RS |
552 | (if (or (null shell-pushd-dunique) |
553 | (not (member old-wd shell-dirstack))) | |
554 | (setq shell-dirstack (cons old-wd shell-dirstack))) | |
555 | (shell-dirstack-message)))))) | |
be9b65ac DL |
556 | |
557 | ;; If STR is of the form +n, for n>0, return n. Otherwise, nil. | |
558 | (defun shell-extract-num (str) | |
559 | (and (string-match "^\\+[1-9][0-9]*$" str) | |
560 | (string-to-int str))) | |
561 | ||
562 | ||
563 | (defun shell-dirtrack-toggle () | |
564 | "Turn directory tracking on and off in a shell buffer." | |
565 | (interactive) | |
0b3c9cf1 SM |
566 | (if (setq shell-dirtrackp (not shell-dirtrackp)) |
567 | (setq list-buffers-directory default-directory) | |
568 | (setq list-buffers-directory nil)) | |
d76b71af | 569 | (message "Directory tracking %s" (if shell-dirtrackp "ON" "OFF"))) |
be9b65ac DL |
570 | |
571 | ;;; For your typing convenience: | |
31e1d920 | 572 | (defalias 'dirtrack-toggle 'shell-dirtrack-toggle) |
be9b65ac | 573 | |
0b3c9cf1 SM |
574 | (defun shell-cd (dir) |
575 | "Do normal `cd' to DIR, and set `list-buffers-directory'." | |
b7e97ed5 SM |
576 | (if shell-dirtrackp |
577 | (setq list-buffers-directory (file-name-as-directory | |
578 | (expand-file-name dir)))) | |
0b3c9cf1 | 579 | (cd dir)) |
be9b65ac DL |
580 | |
581 | (defun shell-resync-dirs () | |
582 | "Resync the buffer's idea of the current directory stack. | |
583 | This command queries the shell with the command bound to | |
24fdffaa | 584 | `shell-dirstack-query' (default \"dirs\"), reads the next |
be9b65ac DL |
585 | line output and parses it to form the new directory stack. |
586 | DON'T issue this command unless the buffer is at a shell prompt. | |
587 | Also, note that if some other subprocess decides to do output | |
588 | immediately after the query, its output will be taken as the | |
589 | new directory stack -- you lose. If this happens, just do the | |
590 | command again." | |
591 | (interactive) | |
592 | (let* ((proc (get-buffer-process (current-buffer))) | |
593 | (pmark (process-mark proc))) | |
594 | (goto-char pmark) | |
595 | (insert shell-dirstack-query) (insert "\n") | |
596 | (sit-for 0) ; force redisplay | |
597 | (comint-send-string proc shell-dirstack-query) | |
598 | (comint-send-string proc "\n") | |
599 | (set-marker pmark (point)) | |
600 | (let ((pt (point))) ; wait for 1 line | |
601 | ;; This extra newline prevents the user's pending input from spoofing us. | |
602 | (insert "\n") (backward-char 1) | |
603 | (while (not (looking-at ".+\n")) | |
604 | (accept-process-output proc) | |
605 | (goto-char pt))) | |
606 | (goto-char pmark) (delete-char 1) ; remove the extra newline | |
607 | ;; That's the dirlist. grab it & parse it. | |
d76b71af | 608 | (let* ((dl (buffer-substring (match-beginning 0) (1- (match-end 0)))) |
be9b65ac DL |
609 | (dl-len (length dl)) |
610 | (ds '()) ; new dir stack | |
611 | (i 0)) | |
612 | (while (< i dl-len) | |
613 | ;; regexp = optional whitespace, (non-whitespace), optional whitespace | |
614 | (string-match "\\s *\\(\\S +\\)\\s *" dl i) ; pick off next dir | |
3db9a4eb RM |
615 | (setq ds (cons (concat comint-file-name-prefix |
616 | (substring dl (match-beginning 1) | |
617 | (match-end 1))) | |
be9b65ac DL |
618 | ds)) |
619 | (setq i (match-end 0))) | |
3db9a4eb | 620 | (let ((ds (nreverse ds))) |
be9b65ac | 621 | (condition-case nil |
0b3c9cf1 | 622 | (progn (shell-cd (car ds)) |
be9b65ac DL |
623 | (setq shell-dirstack (cdr ds)) |
624 | (shell-dirstack-message)) | |
625 | (error (message "Couldn't cd."))))))) | |
626 | ||
627 | ;;; For your typing convenience: | |
31e1d920 | 628 | (defalias 'dirs 'shell-resync-dirs) |
be9b65ac DL |
629 | |
630 | ||
631 | ;;; Show the current dirstack on the message line. | |
632 | ;;; Pretty up dirs a bit by changing "/usr/jqr/foo" to "~/foo". | |
633 | ;;; (This isn't necessary if the dirlisting is generated with a simple "dirs".) | |
634 | ;;; All the commands that mung the buffer's dirstack finish by calling | |
635 | ;;; this guy. | |
636 | (defun shell-dirstack-message () | |
94f9dcbe RM |
637 | (let* ((msg "") |
638 | (ds (cons default-directory shell-dirstack)) | |
d76b71af | 639 | (home (expand-file-name (concat comint-file-name-prefix "~/"))) |
94f9dcbe | 640 | (homelen (length home))) |
be9b65ac DL |
641 | (while ds |
642 | (let ((dir (car ds))) | |
94f9dcbe RM |
643 | (and (>= (length dir) homelen) (string= home (substring dir 0 homelen)) |
644 | (setq dir (concat "~/" (substring dir homelen)))) | |
d76b71af RS |
645 | ;; Strip off comint-file-name-prefix if present. |
646 | (and comint-file-name-prefix | |
647 | (>= (length dir) (length comint-file-name-prefix)) | |
648 | (string= comint-file-name-prefix | |
649 | (substring dir 0 (length comint-file-name-prefix))) | |
650 | (setq dir (substring dir (length comint-file-name-prefix))) | |
94f9dcbe | 651 | (setcar ds dir)) |
d76b71af | 652 | (setq msg (concat msg (directory-file-name dir) " ")) |
be9b65ac DL |
653 | (setq ds (cdr ds)))) |
654 | (message msg))) | |
a9ec2adb | 655 | \f |
d76b71af RS |
656 | (defun shell-forward-command (&optional arg) |
657 | "Move forward across ARG shell command(s). Does not cross lines. | |
658 | See `shell-command-regexp'." | |
659 | (interactive "p") | |
660 | (let ((limit (save-excursion (end-of-line nil) (point)))) | |
19134c18 | 661 | (if (re-search-forward (concat shell-command-regexp "\\([;&|][\t ]*\\)+") |
d76b71af | 662 | limit 'move arg) |
b0f86743 | 663 | (skip-syntax-backward " ")))) |
d76b71af RS |
664 | |
665 | ||
666 | (defun shell-backward-command (&optional arg) | |
667 | "Move backward across ARG shell command(s). Does not cross lines. | |
668 | See `shell-command-regexp'." | |
669 | (interactive "p") | |
670 | (let ((limit (save-excursion (comint-bol nil) (point)))) | |
b0f86743 RS |
671 | (if (> limit (point)) |
672 | (save-excursion (beginning-of-line) (setq limit (point)))) | |
673 | (skip-syntax-backward " " limit) | |
d76b71af | 674 | (if (re-search-backward |
19134c18 | 675 | (format "[;&|]+[\t ]*\\(%s\\)" shell-command-regexp) limit 'move arg) |
d76b71af | 676 | (progn (goto-char (match-beginning 1)) |
b0f86743 | 677 | (skip-chars-forward ";&|"))))) |
d76b71af RS |
678 | |
679 | ||
d76b71af RS |
680 | (defun shell-dynamic-complete-command () |
681 | "Dynamically complete the command at point. | |
682 | This function is similar to `comint-dynamic-complete-filename', except that it | |
683 | searches `exec-path' (minus the trailing emacs library path) for completion | |
684 | candidates. Note that this may not be the same as the shell's idea of the | |
685 | path. | |
686 | ||
687 | Completion is dependent on the value of `shell-completion-execonly', plus | |
988a4d60 RS |
688 | those that effect file completion. See `shell-dynamic-complete-as-command'. |
689 | ||
690 | Returns t if successful." | |
d76b71af | 691 | (interactive) |
988a4d60 RS |
692 | (let ((filename (comint-match-partial-filename))) |
693 | (if (and filename | |
694 | (save-match-data (not (string-match "[~/]" filename))) | |
695 | (eq (match-beginning 0) | |
696 | (save-excursion (shell-backward-command 1) (point)))) | |
697 | (prog2 (message "Completing command name...") | |
698 | (shell-dynamic-complete-as-command))))) | |
699 | ||
700 | ||
701 | (defun shell-dynamic-complete-as-command () | |
702 | "Dynamically complete at point as a command. | |
703 | See `shell-dynamic-complete-filename'. Returns t if successful." | |
56783585 | 704 | (let* ((filename (or (comint-match-partial-filename) "")) |
d76b71af RS |
705 | (pathnondir (file-name-nondirectory filename)) |
706 | (paths (cdr (reverse exec-path))) | |
707 | (cwd (file-name-as-directory (expand-file-name default-directory))) | |
708 | (ignored-extensions | |
a867a90a RS |
709 | (and comint-completion-fignore |
710 | (mapconcat (function (lambda (x) (concat (regexp-quote x) "$"))) | |
711 | comint-completion-fignore "\\|"))) | |
d76b71af RS |
712 | (path "") (comps-in-path ()) (file "") (filepath "") (completions ())) |
713 | ;; Go thru each path in the search path, finding completions. | |
714 | (while paths | |
715 | (setq path (file-name-as-directory (comint-directory (or (car paths) "."))) | |
716 | comps-in-path (and (file-accessible-directory-p path) | |
717 | (file-name-all-completions pathnondir path))) | |
718 | ;; Go thru each completion found, to see whether it should be used. | |
719 | (while comps-in-path | |
720 | (setq file (car comps-in-path) | |
721 | filepath (concat path file)) | |
722 | (if (and (not (member file completions)) | |
7b2db0a0 KH |
723 | (not (and ignored-extensions |
724 | (string-match ignored-extensions file))) | |
d76b71af RS |
725 | (or (string-equal path cwd) |
726 | (not (file-directory-p filepath))) | |
727 | (or (null shell-completion-execonly) | |
728 | (file-executable-p filepath))) | |
729 | (setq completions (cons file completions))) | |
730 | (setq comps-in-path (cdr comps-in-path))) | |
731 | (setq paths (cdr paths))) | |
732 | ;; OK, we've got a list of completions. | |
56783585 RS |
733 | (let ((success (let ((comint-completion-addsuffix nil)) |
734 | (comint-dynamic-simple-complete pathnondir completions)))) | |
735 | (if (and (memq success '(sole shortest)) comint-completion-addsuffix | |
736 | (not (file-directory-p (comint-match-partial-filename)))) | |
737 | (insert " ")) | |
738 | success))) | |
988a4d60 RS |
739 | |
740 | ||
741 | (defun shell-match-partial-variable () | |
742 | "Return the variable at point, or nil if non is found." | |
743 | (save-excursion | |
744 | (let ((limit (point))) | |
745 | (if (re-search-backward "[^A-Za-z0-9_{}]" nil 'move) | |
746 | (or (looking-at "\\$") (forward-char 1))) | |
747 | ;; Anchor the search forwards. | |
748 | (if (or (eolp) (looking-at "[^A-Za-z0-9_{}$]")) | |
749 | nil | |
750 | (re-search-forward "\\$?{?[A-Za-z0-9_]*}?" limit) | |
751 | (buffer-substring (match-beginning 0) (match-end 0)))))) | |
a9ec2adb | 752 | |
988a4d60 RS |
753 | |
754 | (defun shell-dynamic-complete-environment-variable () | |
755 | "Dynamically complete the environment variable at point. | |
756 | Completes if after a variable, i.e., if it starts with a \"$\". | |
757 | See `shell-dynamic-complete-as-environment-variable'. | |
758 | ||
759 | This function is similar to `comint-dynamic-complete-filename', except that it | |
760 | searches `process-environment' for completion candidates. Note that this may | |
761 | not be the same as the interpreter's idea of variable names. The main problem | |
762 | with this type of completion is that `process-environment' is the environment | |
763 | which Emacs started with. Emacs does not track changes to the environment made | |
764 | by the interpreter. Perhaps it would be more accurate if this function was | |
765 | called `shell-dynamic-complete-process-environment-variable'. | |
766 | ||
767 | Returns non-nil if successful." | |
768 | (interactive) | |
769 | (let ((variable (shell-match-partial-variable))) | |
770 | (if (and variable (string-match "^\\$" variable)) | |
771 | (prog2 (message "Completing variable name...") | |
772 | (shell-dynamic-complete-as-environment-variable))))) | |
773 | ||
774 | ||
775 | (defun shell-dynamic-complete-as-environment-variable () | |
776 | "Dynamically complete at point as an environment variable. | |
777 | Used by `shell-dynamic-complete-environment-variable'. | |
778 | Uses `comint-dynamic-simple-complete'." | |
779 | (let* ((var (or (shell-match-partial-variable) "")) | |
780 | (variable (substring var (or (string-match "[^$({]\\|$" var) 0))) | |
781 | (variables (mapcar (function (lambda (x) | |
782 | (substring x 0 (string-match "=" x)))) | |
783 | process-environment)) | |
784 | (addsuffix comint-completion-addsuffix) | |
785 | (comint-completion-addsuffix nil) | |
786 | (success (comint-dynamic-simple-complete variable variables))) | |
787 | (if (memq success '(sole shortest)) | |
788 | (let* ((var (shell-match-partial-variable)) | |
789 | (variable (substring var (string-match "[^$({]" var))) | |
790 | (protection (cond ((string-match "{" var) "}") | |
791 | ((string-match "(" var) ")") | |
792 | (t ""))) | |
793 | (suffix (cond ((null addsuffix) "") | |
794 | ((file-directory-p | |
795 | (comint-directory (getenv variable))) "/") | |
796 | (t " ")))) | |
797 | (insert protection suffix))) | |
798 | success)) | |
799 | ||
800 | ||
801 | (defun shell-replace-by-expanded-directory () | |
802 | "Expand directory stack reference before point. | |
803 | Directory stack references are of the form \"=digit\" or \"=-\". | |
804 | See `default-directory' and `shell-dirstack'. | |
805 | ||
806 | Returns t if successful." | |
807 | (interactive) | |
808 | (if (comint-match-partial-filename) | |
809 | (save-excursion | |
988a4d60 RS |
810 | (goto-char (match-beginning 0)) |
811 | (let ((stack (cons default-directory shell-dirstack)) | |
812 | (index (cond ((looking-at "=-/?") | |
813 | (length shell-dirstack)) | |
814 | ((looking-at "=\\([0-9]+\\)") | |
815 | (string-to-number | |
816 | (buffer-substring | |
817 | (match-beginning 1) (match-end 1))))))) | |
818 | (cond ((null index) | |
819 | nil) | |
820 | ((>= index (length stack)) | |
821 | (error "Directory stack not that deep.")) | |
822 | (t | |
823 | (replace-match (file-name-as-directory (nth index stack)) t t) | |
824 | (message "Directory item: %d" index) | |
825 | t)))))) | |
826 | \f | |
c88ab9ce ER |
827 | (provide 'shell) |
828 | ||
829 | ;;; shell.el ends here |