Commit | Line | Data |
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60370d40 | 1 | ;;; esh-mode.el --- user interface |
26b4dc84 | 2 | |
acaf905b | 3 | ;; Copyright (C) 1999-2012 Free Software Foundation, Inc. |
26b4dc84 | 4 | |
7de5b421 GM |
5 | ;; Author: John Wiegley <johnw@gnu.org> |
6 | ||
26b4dc84 GM |
7 | ;; This file is part of GNU Emacs. |
8 | ||
4ee57b2a | 9 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
26b4dc84 | 10 | ;; it under the terms of the GNU General Public License as published by |
4ee57b2a GM |
11 | ;; the Free Software Foundation, either version 3 of the License, or |
12 | ;; (at your option) any later version. | |
26b4dc84 GM |
13 | |
14 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
15 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | ;; GNU General Public License for more details. | |
18 | ||
19 | ;; You should have received a copy of the GNU General Public License | |
4ee57b2a | 20 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
26b4dc84 | 21 | |
26b4dc84 GM |
22 | ;;; Commentary: |
23 | ||
24 | ;; Basically, Eshell is used just like shell mode (<M-x shell>). The | |
25 | ;; keystrokes for navigating the buffer, and accessing the command | |
26 | ;; history, are identical. Unlike shell mode, however, Eshell mode's | |
27 | ;; governing process is Emacs itself. With shell mode, an inferior | |
28 | ;; shell process is executed that communicates with Emacs via comint | |
29 | ;; -- a mode for handling sub-process interaction. Eshell mode, on | |
30 | ;; the other hand, is a truly native Emacs shell. No subprocess are | |
31 | ;; invoked except the ones requested by the user at the prompt. | |
32 | ;; | |
33 | ;; After entering a command, use <RET> to invoke it ([Command | |
34 | ;; invocation]) . If there is a command on disk, it will be executed | |
35 | ;; as in a normal shell. If there is no command by that name on disk, | |
36 | ;; but a Lisp function with that name is defined, the Lisp function | |
37 | ;; will be called, using the arguments passed on the command line. | |
38 | ;; | |
39 | ;; Some of the other features of the command interaction mode are: | |
40 | ;; | |
41 | ;; @ <M-RET> can be used to accumulate further commands while a | |
42 | ;; command is currently running. Since all input is passed to the | |
43 | ;; subprocess being executed, there is no automatic input queueing | |
44 | ;; as there is with other shells. | |
45 | ;; | |
46 | ;; @ <C-c C-t> can be used to truncate the buffer if it grows too | |
47 | ;; large. | |
48 | ;; | |
49 | ;; @ <C-c C-r> will move point to the beginning of the output of the | |
50 | ;; last command. With a prefix argument, it will narrow to view | |
51 | ;; only that output. | |
52 | ;; | |
53 | ;; @ <C-c C-o> will delete the output from the last command. | |
54 | ;; | |
55 | ;; @ <C-c C-f> will move forward a complete shell argument. | |
56 | ;; | |
57 | ;; @ <C-c C-b> will move backward a complete shell argument. | |
58 | ||
8c7309fe GM |
59 | ;;; Code: |
60 | ||
4e6cc05c GM |
61 | (provide 'esh-mode) |
62 | ||
63 | (eval-when-compile (require 'esh-util)) | |
26b4dc84 GM |
64 | (require 'esh-module) |
65 | (require 'esh-cmd) | |
66 | (require 'esh-io) | |
67 | (require 'esh-var) | |
68 | ||
4e6cc05c GM |
69 | (defgroup eshell-mode nil |
70 | "This module contains code for handling input from the user." | |
71 | :tag "User interface" | |
72 | :group 'eshell) | |
73 | ||
26b4dc84 GM |
74 | ;;; User Variables: |
75 | ||
76 | (defcustom eshell-mode-unload-hook nil | |
ec60da52 | 77 | "A hook that gets run when `eshell-mode' is unloaded." |
26b4dc84 GM |
78 | :type 'hook |
79 | :group 'eshell-mode) | |
80 | ||
81 | (defcustom eshell-mode-hook nil | |
ec60da52 | 82 | "A hook that gets run when `eshell-mode' is entered." |
26b4dc84 GM |
83 | :type 'hook |
84 | :group 'eshell-mode) | |
85 | ||
86 | (defcustom eshell-first-time-mode-hook nil | |
ec60da52 | 87 | "A hook that gets run the first time `eshell-mode' is entered. |
26b4dc84 GM |
88 | That is to say, the first time during an Emacs session." |
89 | :type 'hook | |
90 | :group 'eshell-mode) | |
91 | ||
d783d303 | 92 | (defcustom eshell-exit-hook nil |
ec60da52 | 93 | "A hook that is run whenever `eshell' is exited. |
26b4dc84 | 94 | This hook is only run if exiting actually kills the buffer." |
d783d303 | 95 | :version "24.1" ; removed eshell-query-kill-processes |
26b4dc84 GM |
96 | :type 'hook |
97 | :group 'eshell-mode) | |
98 | ||
99 | (defcustom eshell-kill-on-exit t | |
ec60da52 | 100 | "If non-nil, kill the Eshell buffer on the `exit' command. |
26b4dc84 GM |
101 | Otherwise, the buffer will simply be buried." |
102 | :type 'boolean | |
103 | :group 'eshell-mode) | |
104 | ||
105 | (defcustom eshell-input-filter-functions nil | |
ec60da52 | 106 | "Functions to call before input is processed. |
26b4dc84 GM |
107 | The input is contained in the region from `eshell-last-input-start' to |
108 | `eshell-last-input-end'." | |
109 | :type 'hook | |
110 | :group 'eshell-mode) | |
111 | ||
79cf8e80 | 112 | (defcustom eshell-send-direct-to-subprocesses nil |
ec60da52 | 113 | "If t, send any input immediately to a subprocess." |
79cf8e80 JW |
114 | :type 'boolean |
115 | :group 'eshell-mode) | |
116 | ||
26b4dc84 | 117 | (defcustom eshell-expand-input-functions nil |
ec60da52 | 118 | "Functions to call before input is parsed. |
26b4dc84 GM |
119 | Each function is passed two arguments, which bounds the region of the |
120 | current input text." | |
121 | :type 'hook | |
122 | :group 'eshell-mode) | |
123 | ||
124 | (defcustom eshell-scroll-to-bottom-on-input nil | |
ec60da52 | 125 | "Controls whether input to interpreter causes window to scroll. |
26b4dc84 GM |
126 | If nil, then do not scroll. If t or `all', scroll all windows showing |
127 | buffer. If `this', scroll only the selected window. | |
128 | ||
129 | See `eshell-preinput-scroll-to-bottom'." | |
130 | :type '(radio (const :tag "Do not scroll Eshell windows" nil) | |
131 | (const :tag "Scroll all windows showing the buffer" all) | |
132 | (const :tag "Scroll only the selected window" this)) | |
133 | :group 'eshell-mode) | |
134 | ||
135 | (defcustom eshell-scroll-to-bottom-on-output nil | |
ec60da52 | 136 | "Controls whether interpreter output causes window to scroll. |
26b4dc84 GM |
137 | If nil, then do not scroll. If t or `all', scroll all windows showing |
138 | buffer. If `this', scroll only the selected window. If `others', | |
139 | scroll only those that are not the selected window. | |
140 | ||
141 | See variable `eshell-scroll-show-maximum-output' and function | |
142 | `eshell-postoutput-scroll-to-bottom'." | |
143 | :type '(radio (const :tag "Do not scroll Eshell windows" nil) | |
144 | (const :tag "Scroll all windows showing the buffer" all) | |
145 | (const :tag "Scroll only the selected window" this) | |
146 | (const :tag "Scroll all windows other than selected" this)) | |
147 | :group 'eshell-mode) | |
148 | ||
149 | (defcustom eshell-scroll-show-maximum-output t | |
ec60da52 | 150 | "Controls how interpreter output causes window to scroll. |
26b4dc84 GM |
151 | If non-nil, then show the maximum output when the window is scrolled. |
152 | ||
153 | See variable `eshell-scroll-to-bottom-on-output' and function | |
154 | `eshell-postoutput-scroll-to-bottom'." | |
155 | :type 'boolean | |
156 | :group 'eshell-mode) | |
157 | ||
158 | (defcustom eshell-buffer-maximum-lines 1024 | |
ec60da52 | 159 | "The maximum size in lines for eshell buffers. |
26b4dc84 GM |
160 | Eshell buffers are truncated from the top to be no greater than this |
161 | number, if the function `eshell-truncate-buffer' is on | |
162 | `eshell-output-filter-functions'." | |
163 | :type 'integer | |
164 | :group 'eshell-mode) | |
165 | ||
166 | (defcustom eshell-output-filter-functions | |
007306f9 GM |
167 | '(eshell-postoutput-scroll-to-bottom |
168 | eshell-handle-control-codes | |
fd94644f | 169 | eshell-handle-ansi-color |
26b4dc84 | 170 | eshell-watch-for-password-prompt) |
ec60da52 | 171 | "Functions to call before output is displayed. |
26b4dc84 GM |
172 | These functions are only called for output that is displayed |
173 | interactively, and not for output which is redirected." | |
174 | :type 'hook | |
175 | :group 'eshell-mode) | |
176 | ||
177 | (defcustom eshell-preoutput-filter-functions nil | |
ec60da52 | 178 | "Functions to call before output is inserted into the buffer. |
26b4dc84 GM |
179 | These functions get one argument, a string containing the text to be |
180 | inserted. They return the string as it should be inserted." | |
181 | :type 'hook | |
182 | :group 'eshell-mode) | |
183 | ||
184 | (defcustom eshell-password-prompt-regexp | |
dace60cf | 185 | "[Pp]ass\\(word\\|phrase\\).*:\\s *\\'" |
ec60da52 | 186 | "Regexp matching prompts for passwords in the inferior process. |
26b4dc84 GM |
187 | This is used by `eshell-watch-for-password-prompt'." |
188 | :type 'regexp | |
189 | :group 'eshell-mode) | |
190 | ||
191 | (defcustom eshell-skip-prompt-function nil | |
ec60da52 | 192 | "A function called from beginning of line to skip the prompt." |
6a44f20f | 193 | :type '(choice (const nil) function) |
26b4dc84 GM |
194 | :group 'eshell-mode) |
195 | ||
37269466 CY |
196 | (defcustom eshell-status-in-mode-line t |
197 | "If non-nil, let the user know a command is running in the mode line." | |
26b4dc84 GM |
198 | :type 'boolean |
199 | :group 'eshell-mode) | |
200 | ||
37269466 | 201 | (define-obsolete-variable-alias 'eshell-status-in-modeline |
2a1e2476 | 202 | 'eshell-status-in-mode-line "24.3") |
37269466 | 203 | |
26b4dc84 GM |
204 | (defvar eshell-first-time-p t |
205 | "A variable which is non-nil the first time Eshell is loaded.") | |
206 | ||
207 | ;; Internal Variables: | |
208 | ||
209 | ;; these are only set to `nil' initially for the sake of the | |
210 | ;; byte-compiler, when compiling other files which `require' this one | |
211 | (defvar eshell-mode nil) | |
212 | (defvar eshell-mode-map nil) | |
213 | (defvar eshell-command-running-string "--") | |
214 | (defvar eshell-command-map nil) | |
215 | (defvar eshell-command-prefix nil) | |
216 | (defvar eshell-last-input-start nil) | |
217 | (defvar eshell-last-input-end nil) | |
218 | (defvar eshell-last-output-start nil) | |
219 | (defvar eshell-last-output-block-begin nil) | |
220 | (defvar eshell-last-output-end nil) | |
221 | ||
222 | (defvar eshell-currently-handling-window nil) | |
223 | (defvar eshell-mode-syntax-table nil) | |
224 | (defvar eshell-mode-abbrev-table nil) | |
225 | ||
226 | (define-abbrev-table 'eshell-mode-abbrev-table ()) | |
227 | ||
26b4dc84 GM |
228 | (if (not eshell-mode-syntax-table) |
229 | (let ((i 0)) | |
230 | (setq eshell-mode-syntax-table (make-syntax-table)) | |
231 | (while (< i ?0) | |
232 | (modify-syntax-entry i "_ " eshell-mode-syntax-table) | |
233 | (setq i (1+ i))) | |
234 | (setq i (1+ ?9)) | |
235 | (while (< i ?A) | |
236 | (modify-syntax-entry i "_ " eshell-mode-syntax-table) | |
237 | (setq i (1+ i))) | |
238 | (setq i (1+ ?Z)) | |
239 | (while (< i ?a) | |
240 | (modify-syntax-entry i "_ " eshell-mode-syntax-table) | |
241 | (setq i (1+ i))) | |
242 | (setq i (1+ ?z)) | |
243 | (while (< i 128) | |
244 | (modify-syntax-entry i "_ " eshell-mode-syntax-table) | |
245 | (setq i (1+ i))) | |
246 | (modify-syntax-entry ? " " eshell-mode-syntax-table) | |
247 | (modify-syntax-entry ?\t " " eshell-mode-syntax-table) | |
248 | (modify-syntax-entry ?\f " " eshell-mode-syntax-table) | |
249 | (modify-syntax-entry ?\n "> " eshell-mode-syntax-table) | |
250 | ;; Give CR the same syntax as newline, for selective-display. | |
251 | (modify-syntax-entry ?\^m "> " eshell-mode-syntax-table) | |
252 | ;;; (modify-syntax-entry ?\; "< " eshell-mode-syntax-table) | |
253 | (modify-syntax-entry ?` "' " eshell-mode-syntax-table) | |
254 | (modify-syntax-entry ?' "' " eshell-mode-syntax-table) | |
255 | (modify-syntax-entry ?, "' " eshell-mode-syntax-table) | |
256 | ;; Used to be singlequote; changed for flonums. | |
257 | (modify-syntax-entry ?. "_ " eshell-mode-syntax-table) | |
258 | (modify-syntax-entry ?- "_ " eshell-mode-syntax-table) | |
259 | (modify-syntax-entry ?| ". " eshell-mode-syntax-table) | |
260 | (modify-syntax-entry ?# "' " eshell-mode-syntax-table) | |
261 | (modify-syntax-entry ?\" "\" " eshell-mode-syntax-table) | |
262 | (modify-syntax-entry ?\\ "/ " eshell-mode-syntax-table) | |
263 | (modify-syntax-entry ?\( "() " eshell-mode-syntax-table) | |
264 | (modify-syntax-entry ?\) ")( " eshell-mode-syntax-table) | |
265 | (modify-syntax-entry ?\{ "(} " eshell-mode-syntax-table) | |
266 | (modify-syntax-entry ?\} "){ " eshell-mode-syntax-table) | |
267 | (modify-syntax-entry ?\[ "(] " eshell-mode-syntax-table) | |
268 | (modify-syntax-entry ?\] ")[ " eshell-mode-syntax-table) | |
269 | ;; All non-word multibyte characters should be `symbol'. | |
a3269bc4 | 270 | (if (featurep 'xemacs) |
26b4dc84 GM |
271 | (map-char-table |
272 | (function | |
273 | (lambda (key val) | |
274 | (and (characterp key) | |
275 | (>= (char-int key) 256) | |
276 | (/= (char-syntax key) ?w) | |
277 | (modify-syntax-entry key "_ " | |
278 | eshell-mode-syntax-table)))) | |
279 | (standard-syntax-table)) | |
280 | (map-char-table | |
281 | (function | |
282 | (lambda (key val) | |
2494c91b | 283 | (and (if (consp key) |
8f924df7 KH |
284 | (and (>= (car key) 128) |
285 | (/= (char-syntax (car key)) ?w)) | |
2494c91b KH |
286 | (and (>= key 256) |
287 | (/= (char-syntax key) ?w))) | |
26b4dc84 GM |
288 | (modify-syntax-entry key "_ " |
289 | eshell-mode-syntax-table)))) | |
290 | (standard-syntax-table))))) | |
291 | ||
292 | ;;; User Functions: | |
293 | ||
d783d303 GM |
294 | (defun eshell-kill-buffer-function () |
295 | "Function added to `kill-buffer-hook' in Eshell buffers. | |
296 | This runs the function `eshell-kill-processes-on-exit', | |
297 | and the hook `eshell-exit-hook'." | |
298 | ;; It's fine to run this unconditionally since it can be customized | |
299 | ;; via the `eshell-kill-processes-on-exit' variable. | |
300 | (and (fboundp 'eshell-query-kill-processes) | |
301 | (not (memq 'eshell-query-kill-processes eshell-exit-hook)) | |
302 | (eshell-query-kill-processes)) | |
303 | (run-hooks 'eshell-exit-hook)) | |
304 | ||
26b4dc84 GM |
305 | ;;;###autoload |
306 | (defun eshell-mode () | |
307 | "Emacs shell interactive mode. | |
308 | ||
309 | \\{eshell-mode-map}" | |
310 | (kill-all-local-variables) | |
311 | ||
312 | (setq major-mode 'eshell-mode) | |
313 | (setq mode-name "EShell") | |
314 | (set (make-local-variable 'eshell-mode) t) | |
315 | ||
316 | (make-local-variable 'eshell-mode-map) | |
317 | (setq eshell-mode-map (make-sparse-keymap)) | |
318 | (use-local-map eshell-mode-map) | |
319 | ||
37269466 | 320 | (when eshell-status-in-mode-line |
26b4dc84 | 321 | (make-local-variable 'eshell-command-running-string) |
48e889be | 322 | (let ((fmt (copy-sequence mode-line-format))) |
26b4dc84 GM |
323 | (make-local-variable 'mode-line-format) |
324 | (setq mode-line-format fmt)) | |
37269466 CY |
325 | (let ((mode-line-elt (memq 'mode-line-modified mode-line-format))) |
326 | (if mode-line-elt | |
327 | (setcar mode-line-elt 'eshell-command-running-string)))) | |
26b4dc84 GM |
328 | |
329 | (define-key eshell-mode-map [return] 'eshell-send-input) | |
330 | (define-key eshell-mode-map [(control ?m)] 'eshell-send-input) | |
331 | (define-key eshell-mode-map [(control ?j)] 'eshell-send-input) | |
332 | (define-key eshell-mode-map [(meta return)] 'eshell-queue-input) | |
333 | (define-key eshell-mode-map [(meta control ?m)] 'eshell-queue-input) | |
334 | (define-key eshell-mode-map [(meta control ?l)] 'eshell-show-output) | |
c2b2a6ca | 335 | (define-key eshell-mode-map [(control ?a)] 'eshell-bol) |
26b4dc84 GM |
336 | |
337 | (set (make-local-variable 'eshell-command-prefix) | |
338 | (make-symbol "eshell-command-prefix")) | |
339 | (fset eshell-command-prefix (make-sparse-keymap)) | |
340 | (set (make-local-variable 'eshell-command-map) | |
341 | (symbol-function eshell-command-prefix)) | |
342 | (define-key eshell-mode-map [(control ?c)] eshell-command-prefix) | |
343 | ||
b4bd214e JW |
344 | ;; without this, find-tag complains about read-only text being |
345 | ;; modified | |
346 | (if (eq (key-binding [(meta ?.)]) 'find-tag) | |
347 | (define-key eshell-mode-map [(meta ?.)] 'eshell-find-tag)) | |
26b4dc84 | 348 | (define-key eshell-command-map [(meta ?o)] 'eshell-mark-output) |
79cf8e80 | 349 | (define-key eshell-command-map [(meta ?d)] 'eshell-toggle-direct-send) |
26b4dc84 GM |
350 | |
351 | (define-key eshell-command-map [(control ?a)] 'eshell-bol) | |
352 | (define-key eshell-command-map [(control ?b)] 'eshell-backward-argument) | |
353 | (define-key eshell-command-map [(control ?e)] 'eshell-show-maximum-output) | |
354 | (define-key eshell-command-map [(control ?f)] 'eshell-forward-argument) | |
355 | (define-key eshell-command-map [return] 'eshell-copy-old-input) | |
356 | (define-key eshell-command-map [(control ?m)] 'eshell-copy-old-input) | |
357 | (define-key eshell-command-map [(control ?o)] 'eshell-kill-output) | |
358 | (define-key eshell-command-map [(control ?r)] 'eshell-show-output) | |
359 | (define-key eshell-command-map [(control ?t)] 'eshell-truncate-buffer) | |
360 | (define-key eshell-command-map [(control ?u)] 'eshell-kill-input) | |
361 | (define-key eshell-command-map [(control ?w)] 'backward-kill-word) | |
b4bd214e | 362 | (define-key eshell-command-map [(control ?y)] 'eshell-repeat-argument) |
26b4dc84 GM |
363 | |
364 | (setq local-abbrev-table eshell-mode-abbrev-table) | |
365 | (set-syntax-table eshell-mode-syntax-table) | |
366 | ||
367 | (set (make-local-variable 'dired-directory) default-directory) | |
368 | (set (make-local-variable 'list-buffers-directory) | |
369 | (expand-file-name default-directory)) | |
370 | ||
371 | ;; always set the tab width to 8 in Eshell buffers, since external | |
372 | ;; commands which do their own formatting almost always expect this | |
373 | (set (make-local-variable 'tab-width) 8) | |
374 | ||
b4bd214e JW |
375 | ;; don't ever use auto-fill in Eshell buffers |
376 | (setq auto-fill-function nil) | |
377 | ||
26b4dc84 GM |
378 | ;; always display everything from a return value |
379 | (if (boundp 'print-length) | |
380 | (set (make-local-variable 'print-length) nil)) | |
381 | (if (boundp 'print-level) | |
382 | (set (make-local-variable 'print-level) nil)) | |
383 | ||
384 | ;; set require-final-newline to nil; otherwise, all redirected | |
385 | ;; output will end with a newline, whether or not the source | |
386 | ;; indicated it! | |
387 | (set (make-local-variable 'require-final-newline) nil) | |
388 | ||
389 | (set (make-local-variable 'max-lisp-eval-depth) | |
390 | (max 3000 max-lisp-eval-depth)) | |
391 | (set (make-local-variable 'max-specpdl-size) | |
392 | (max 6000 max-lisp-eval-depth)) | |
393 | ||
394 | (set (make-local-variable 'eshell-last-input-start) (point-marker)) | |
395 | (set (make-local-variable 'eshell-last-input-end) (point-marker)) | |
396 | (set (make-local-variable 'eshell-last-output-start) (point-marker)) | |
397 | (set (make-local-variable 'eshell-last-output-end) (point-marker)) | |
398 | (set (make-local-variable 'eshell-last-output-block-begin) (point)) | |
399 | ||
48e889be | 400 | (let ((modules-list (copy-sequence eshell-modules-list))) |
26b4dc84 GM |
401 | (make-local-variable 'eshell-modules-list) |
402 | (setq eshell-modules-list modules-list)) | |
403 | ||
404 | ;; load extension modules into memory. This will cause any global | |
405 | ;; variables they define to be visible, since some of the core | |
406 | ;; modules sometimes take advantage of their functionality if used. | |
a9eeff78 | 407 | (dolist (module eshell-modules-list) |
26b4dc84 GM |
408 | (let ((module-fullname (symbol-name module)) |
409 | module-shortname) | |
410 | (if (string-match "^eshell-\\(.*\\)" module-fullname) | |
411 | (setq module-shortname | |
412 | (concat "em-" (match-string 1 module-fullname)))) | |
413 | (unless module-shortname | |
414 | (error "Invalid Eshell module name: %s" module-fullname)) | |
415 | (unless (featurep (intern module-shortname)) | |
416 | (load module-shortname)))) | |
417 | ||
418 | (unless (file-exists-p eshell-directory-name) | |
419 | (eshell-make-private-directory eshell-directory-name t)) | |
420 | ||
d783d303 GM |
421 | ;; Load core Eshell modules, then extension modules, for this session. |
422 | (dolist (module (append (eshell-subgroups 'eshell) eshell-modules-list)) | |
423 | (let ((load-hook (intern-soft (format "%s-load-hook" module))) | |
424 | (initfunc (intern-soft (format "%s-initialize" module)))) | |
425 | (when (and load-hook (boundp load-hook)) | |
426 | (if (memq initfunc (symbol-value load-hook)) (setq initfunc nil)) | |
427 | (run-hooks load-hook)) | |
428 | ;; So we don't need the -initialize functions on the hooks (b#5375). | |
429 | (and initfunc (fboundp initfunc) (funcall initfunc)))) | |
26b4dc84 | 430 | |
79cf8e80 JW |
431 | (if eshell-send-direct-to-subprocesses |
432 | (add-hook 'pre-command-hook 'eshell-intercept-commands t t)) | |
433 | ||
434 | (if eshell-scroll-to-bottom-on-input | |
435 | (add-hook 'pre-command-hook 'eshell-preinput-scroll-to-bottom t t)) | |
26b4dc84 GM |
436 | |
437 | (when eshell-scroll-show-maximum-output | |
438 | (set (make-local-variable 'scroll-conservatively) 1000)) | |
439 | ||
37269466 | 440 | (when eshell-status-in-mode-line |
26b4dc84 | 441 | (add-hook 'eshell-pre-command-hook 'eshell-command-started nil t) |
26b4dc84 GM |
442 | (add-hook 'eshell-post-command-hook 'eshell-command-finished nil t)) |
443 | ||
d783d303 | 444 | (add-hook 'kill-buffer-hook 'eshell-kill-buffer-function t t) |
26b4dc84 GM |
445 | |
446 | (if eshell-first-time-p | |
447 | (run-hooks 'eshell-first-time-mode-hook)) | |
5c3066b8 | 448 | (run-mode-hooks 'eshell-mode-hook) |
26b4dc84 GM |
449 | (run-hooks 'eshell-post-command-hook)) |
450 | ||
451 | (put 'eshell-mode 'mode-class 'special) | |
452 | ||
26b4dc84 | 453 | (defun eshell-command-started () |
37269466 | 454 | "Indicate in the mode line that a command has started." |
26b4dc84 GM |
455 | (setq eshell-command-running-string "**") |
456 | (force-mode-line-update)) | |
457 | ||
458 | (defun eshell-command-finished () | |
37269466 | 459 | "Indicate in the mode line that a command has finished." |
26b4dc84 GM |
460 | (setq eshell-command-running-string "--") |
461 | (force-mode-line-update)) | |
462 | ||
26b4dc84 GM |
463 | ;;; Internal Functions: |
464 | ||
79cf8e80 JW |
465 | (defun eshell-toggle-direct-send () |
466 | (interactive) | |
467 | (if eshell-send-direct-to-subprocesses | |
468 | (progn | |
469 | (setq eshell-send-direct-to-subprocesses nil) | |
470 | (remove-hook 'pre-command-hook 'eshell-intercept-commands t) | |
471 | (message "Sending subprocess input on RET")) | |
472 | (setq eshell-send-direct-to-subprocesses t) | |
473 | (add-hook 'pre-command-hook 'eshell-intercept-commands t t) | |
474 | (message "Sending subprocess input directly"))) | |
475 | ||
476 | (defun eshell-self-insert-command (N) | |
477 | (interactive "i") | |
478 | (process-send-string | |
479 | (eshell-interactive-process) | |
1ba983e8 GM |
480 | (char-to-string (if (symbolp last-command-event) |
481 | (get last-command-event 'ascii-character) | |
482 | last-command-event)))) | |
79cf8e80 JW |
483 | |
484 | (defun eshell-intercept-commands () | |
485 | (when (and (eshell-interactive-process) | |
486 | (not (and (integerp last-input-event) | |
487 | (memq last-input-event '(?\C-x ?\C-c))))) | |
488 | (let ((possible-events (where-is-internal this-command)) | |
489 | (name (symbol-name this-command)) | |
490 | (intercept t)) | |
491 | ;; Assume that any multikey combination which does NOT target an | |
492 | ;; Eshell command, is a combo the user wants invoked rather than | |
493 | ;; sent to the underlying subprocess. | |
494 | (unless (and (> (length name) 7) | |
495 | (equal (substring name 0 7) "eshell-")) | |
496 | (while possible-events | |
497 | (if (> (length (car possible-events)) 1) | |
498 | (setq intercept nil possible-events nil) | |
499 | (setq possible-events (cdr possible-events))))) | |
500 | (if intercept | |
501 | (setq this-command 'eshell-self-insert-command))))) | |
502 | ||
c2fb1b60 JB |
503 | (declare-function find-tag-interactive "etags" (prompt &optional no-default)) |
504 | ||
b4bd214e JW |
505 | (defun eshell-find-tag (&optional tagname next-p regexp-p) |
506 | "A special version of `find-tag' that ignores read-onlyness." | |
507 | (interactive) | |
ca7aae91 | 508 | (require 'etags) |
b4bd214e | 509 | (let ((inhibit-read-only t) |
8c6b1d83 JW |
510 | (no-default (eobp)) |
511 | (find-tag-default-function 'ignore)) | |
c2fb1b60 | 512 | (setq tagname (car (find-tag-interactive "Find tag: " no-default))) |
b4bd214e JW |
513 | (find-tag tagname next-p regexp-p))) |
514 | ||
26b4dc84 GM |
515 | (defun eshell-move-argument (limit func property arg) |
516 | "Move forward ARG arguments." | |
517 | (catch 'eshell-incomplete | |
518 | (eshell-parse-arguments (save-excursion (eshell-bol) (point)) | |
519 | (line-end-position))) | |
b4bd214e JW |
520 | (let ((pos (save-excursion |
521 | (funcall func 1) | |
522 | (while (and (> arg 0) (/= (point) limit)) | |
523 | (if (get-text-property (point) property) | |
524 | (setq arg (1- arg))) | |
525 | (if (> arg 0) | |
526 | (funcall func 1))) | |
527 | (point)))) | |
26b4dc84 GM |
528 | (goto-char pos) |
529 | (if (and (eq func 'forward-char) | |
530 | (= (1+ pos) limit)) | |
531 | (forward-char 1)))) | |
532 | ||
26b4dc84 GM |
533 | (defun eshell-forward-argument (&optional arg) |
534 | "Move forward ARG arguments." | |
535 | (interactive "p") | |
536 | (eshell-move-argument (point-max) 'forward-char 'arg-end arg)) | |
537 | ||
538 | (defun eshell-backward-argument (&optional arg) | |
539 | "Move backward ARG arguments." | |
540 | (interactive "p") | |
541 | (eshell-move-argument (point-min) 'backward-char 'arg-begin arg)) | |
542 | ||
b4bd214e JW |
543 | (defun eshell-repeat-argument (&optional arg) |
544 | (interactive "p") | |
545 | (let ((begin (save-excursion | |
546 | (eshell-backward-argument arg) | |
547 | (point)))) | |
548 | (kill-ring-save begin (point)) | |
549 | (yank))) | |
550 | ||
26b4dc84 GM |
551 | (defun eshell-bol () |
552 | "Goes to the beginning of line, then skips past the prompt, if any." | |
553 | (interactive) | |
554 | (beginning-of-line) | |
555 | (and eshell-skip-prompt-function | |
556 | (funcall eshell-skip-prompt-function))) | |
557 | ||
558 | (defsubst eshell-push-command-mark () | |
559 | "Push a mark at the end of the last input text." | |
560 | (push-mark (1- eshell-last-input-end) t)) | |
561 | ||
562 | (custom-add-option 'eshell-pre-command-hook 'eshell-push-command-mark) | |
563 | ||
564 | (defsubst eshell-goto-input-start () | |
565 | "Goto the start of the last command input. | |
566 | Putting this function on `eshell-pre-command-hook' will mimic Plan 9's | |
567 | 9term behavior." | |
568 | (goto-char eshell-last-input-start)) | |
569 | ||
570 | (custom-add-option 'eshell-pre-command-hook 'eshell-push-command-mark) | |
571 | ||
572 | (defsubst eshell-interactive-print (string) | |
573 | "Print STRING to the eshell display buffer." | |
574 | (eshell-output-filter nil string)) | |
575 | ||
576 | (defsubst eshell-begin-on-new-line () | |
577 | "This function outputs a newline if not at beginning of line." | |
578 | (save-excursion | |
579 | (goto-char eshell-last-output-end) | |
580 | (or (bolp) | |
581 | (eshell-interactive-print "\n")))) | |
582 | ||
583 | (defsubst eshell-reset (&optional no-hooks) | |
584 | "Output a prompt on a new line, aborting any current input. | |
585 | If NO-HOOKS is non-nil, then `eshell-post-command-hook' won't be run." | |
586 | (goto-char (point-max)) | |
587 | (setq eshell-last-input-start (point-marker) | |
588 | eshell-last-input-end (point-marker) | |
589 | eshell-last-output-start (point-marker) | |
590 | eshell-last-output-block-begin (point) | |
591 | eshell-last-output-end (point-marker)) | |
592 | (eshell-begin-on-new-line) | |
593 | (unless no-hooks | |
594 | (run-hooks 'eshell-post-command-hook) | |
595 | (goto-char (point-max)))) | |
596 | ||
597 | (defun eshell-parse-command-input (beg end &optional args) | |
598 | "Parse the command input from BEG to END. | |
599 | The difference is that `eshell-parse-command' expects a complete | |
600 | command string (and will error if it doesn't get one), whereas this | |
601 | function will inform the caller whether more input is required. | |
602 | ||
603 | If nil is returned, more input is necessary (probably because a | |
604 | multi-line input string wasn't terminated properly). Otherwise, it | |
605 | will return the parsed command." | |
b4bd214e JW |
606 | (let (delim command) |
607 | (if (setq delim | |
608 | (catch 'eshell-incomplete | |
609 | (ignore | |
610 | (setq command (eshell-parse-command (cons beg end) | |
611 | args t))))) | |
612 | (ignore | |
4c36be58 | 613 | (message "Expecting completion of delimiter %c ..." |
b4bd214e JW |
614 | (if (listp delim) |
615 | (car delim) | |
616 | delim))) | |
26b4dc84 GM |
617 | command))) |
618 | ||
619 | (defun eshell-update-markers (pmark) | |
620 | "Update the input and output markers relative to point and PMARK." | |
621 | (set-marker eshell-last-input-start pmark) | |
622 | (set-marker eshell-last-input-end (point)) | |
623 | (set-marker eshell-last-output-end (point))) | |
624 | ||
625 | (defun eshell-queue-input (&optional use-region) | |
626 | "Queue the current input text for execution by Eshell. | |
627 | Particularly, don't send the text to the current process, even if it's | |
628 | waiting for input." | |
629 | (interactive "P") | |
630 | (eshell-send-input use-region t)) | |
631 | ||
26b4dc84 | 632 | (defun eshell-send-input (&optional use-region queue-p no-newline) |
e94dae7f | 633 | "Send the input received to Eshell for parsing and processing. |
26b4dc84 GM |
634 | After `eshell-last-output-end', sends all text from that marker to |
635 | point as input. Before that marker, calls `eshell-get-old-input' to | |
636 | retrieve old input, copies it to the end of the buffer, and sends it. | |
637 | ||
638 | If USE-REGION is non-nil, the current region (between point and mark) | |
639 | will be used as input. | |
640 | ||
641 | If QUEUE-P is non-nil, input will be queued until the next prompt, | |
642 | rather than sent to the currently active process. If no process, the | |
643 | input is processed immediately. | |
644 | ||
645 | If NO-NEWLINE is non-nil, the input is sent without an implied final | |
646 | newline." | |
647 | (interactive "P") | |
648 | ;; Note that the input string does not include its terminal newline. | |
649 | (let ((proc-running-p (and (eshell-interactive-process) | |
650 | (not queue-p))) | |
651 | (inhibit-point-motion-hooks t) | |
652 | after-change-functions) | |
653 | (unless (and proc-running-p | |
654 | (not (eq (process-status | |
655 | (eshell-interactive-process)) 'run))) | |
656 | (if (or proc-running-p | |
657 | (>= (point) eshell-last-output-end)) | |
658 | (goto-char (point-max)) | |
659 | (let ((copy (eshell-get-old-input use-region))) | |
660 | (goto-char eshell-last-output-end) | |
661 | (insert-and-inherit copy))) | |
79cf8e80 JW |
662 | (unless (or no-newline |
663 | (and eshell-send-direct-to-subprocesses | |
664 | proc-running-p)) | |
26b4dc84 GM |
665 | (insert-before-markers-and-inherit ?\n)) |
666 | (if proc-running-p | |
667 | (progn | |
668 | (eshell-update-markers eshell-last-output-end) | |
79cf8e80 JW |
669 | (if (or eshell-send-direct-to-subprocesses |
670 | (= eshell-last-input-start eshell-last-input-end)) | |
26b4dc84 GM |
671 | (unless no-newline |
672 | (process-send-string (eshell-interactive-process) "\n")) | |
673 | (process-send-region (eshell-interactive-process) | |
674 | eshell-last-input-start | |
675 | eshell-last-input-end))) | |
676 | (if (= eshell-last-output-end (point)) | |
677 | (run-hooks 'eshell-post-command-hook) | |
678 | (let (input) | |
679 | (eshell-condition-case err | |
680 | (progn | |
681 | (setq input (buffer-substring-no-properties | |
682 | eshell-last-output-end (1- (point)))) | |
683 | (run-hook-with-args 'eshell-expand-input-functions | |
684 | eshell-last-output-end (1- (point))) | |
685 | (let ((cmd (eshell-parse-command-input | |
686 | eshell-last-output-end (1- (point))))) | |
687 | (when cmd | |
688 | (eshell-update-markers eshell-last-output-end) | |
689 | (setq input (buffer-substring-no-properties | |
690 | eshell-last-input-start | |
691 | (1- eshell-last-input-end))) | |
692 | (run-hooks 'eshell-input-filter-functions) | |
693 | (and (catch 'eshell-terminal | |
694 | (ignore | |
dace60cf JW |
695 | (if (eshell-invoke-directly cmd input) |
696 | (eval cmd) | |
697 | (eshell-eval-command cmd input)))) | |
26b4dc84 GM |
698 | (eshell-life-is-too-much))))) |
699 | (quit | |
700 | (eshell-reset t) | |
701 | (run-hooks 'eshell-post-command-hook) | |
702 | (signal 'quit nil)) | |
703 | (error | |
704 | (eshell-reset t) | |
705 | (eshell-interactive-print | |
706 | (concat (error-message-string err) "\n")) | |
707 | (run-hooks 'eshell-post-command-hook) | |
708 | (insert-and-inherit input))))))))) | |
709 | ||
26b4dc84 GM |
710 | (defsubst eshell-kill-new () |
711 | "Add the last input text to the kill ring." | |
712 | (kill-ring-save eshell-last-input-start eshell-last-input-end)) | |
713 | ||
714 | (custom-add-option 'eshell-input-filter-functions 'eshell-kill-new) | |
715 | ||
716 | (defun eshell-output-filter (process string) | |
717 | "Send the output from PROCESS (STRING) to the interactive display. | |
718 | This is done after all necessary filtering has been done." | |
719 | (let ((oprocbuf (if process (process-buffer process) | |
720 | (current-buffer))) | |
721 | (inhibit-point-motion-hooks t) | |
722 | after-change-functions) | |
723 | (let ((functions eshell-preoutput-filter-functions)) | |
724 | (while (and functions string) | |
725 | (setq string (funcall (car functions) string)) | |
726 | (setq functions (cdr functions)))) | |
727 | (if (and string oprocbuf (buffer-name oprocbuf)) | |
d3204296 GM |
728 | (let (opoint obeg oend) |
729 | (with-current-buffer oprocbuf | |
730 | (setq opoint (point)) | |
731 | (setq obeg (point-min)) | |
732 | (setq oend (point-max)) | |
733 | (let ((buffer-read-only nil) | |
734 | (nchars (length string)) | |
735 | (ostart nil)) | |
736 | (widen) | |
737 | (goto-char eshell-last-output-end) | |
738 | (setq ostart (point)) | |
739 | (if (<= (point) opoint) | |
740 | (setq opoint (+ opoint nchars))) | |
741 | (if (< (point) obeg) | |
742 | (setq obeg (+ obeg nchars))) | |
743 | (if (<= (point) oend) | |
744 | (setq oend (+ oend nchars))) | |
745 | (insert-before-markers string) | |
746 | (if (= (window-start (selected-window)) (point)) | |
747 | (set-window-start (selected-window) | |
748 | (- (point) nchars))) | |
749 | (if (= (point) eshell-last-input-end) | |
750 | (set-marker eshell-last-input-end | |
751 | (- eshell-last-input-end nchars))) | |
752 | (set-marker eshell-last-output-start ostart) | |
753 | (set-marker eshell-last-output-end (point)) | |
754 | (force-mode-line-update)) | |
755 | (narrow-to-region obeg oend) | |
756 | (goto-char opoint) | |
757 | (eshell-run-output-filters)))))) | |
26b4dc84 GM |
758 | |
759 | (defun eshell-run-output-filters () | |
760 | "Run the `eshell-output-filter-functions' on the current output." | |
761 | (save-current-buffer | |
762 | (run-hooks 'eshell-output-filter-functions)) | |
763 | (setq eshell-last-output-block-begin | |
764 | (marker-position eshell-last-output-end))) | |
765 | ||
766 | ;;; jww (1999-10-23): this needs testing | |
767 | (defun eshell-preinput-scroll-to-bottom () | |
768 | "Go to the end of buffer in all windows showing it. | |
769 | Movement occurs if point in the selected window is not after the | |
770 | process mark, and `this-command' is an insertion command. Insertion | |
b7599623 | 771 | commands recognized are `self-insert-command', `yank', and |
26b4dc84 GM |
772 | `hilit-yank'. Depends on the value of |
773 | `eshell-scroll-to-bottom-on-input'. | |
774 | ||
775 | This function should be a pre-command hook." | |
776 | (if (memq this-command '(self-insert-command yank hilit-yank)) | |
777 | (let* ((selected (selected-window)) | |
778 | (current (current-buffer)) | |
779 | (scroll eshell-scroll-to-bottom-on-input)) | |
780 | (if (< (point) eshell-last-output-end) | |
781 | (if (eq scroll 'this) | |
782 | (goto-char (point-max)) | |
783 | (walk-windows | |
784 | (function | |
785 | (lambda (window) | |
786 | (when (and (eq (window-buffer window) current) | |
787 | (or (eq scroll t) (eq scroll 'all))) | |
788 | (select-window window) | |
789 | (goto-char (point-max)) | |
790 | (select-window selected)))) | |
791 | nil t)))))) | |
792 | ||
793 | ;;; jww (1999-10-23): this needs testing | |
794 | (defun eshell-postoutput-scroll-to-bottom () | |
795 | "Go to the end of buffer in all windows showing it. | |
796 | Does not scroll if the current line is the last line in the buffer. | |
797 | Depends on the value of `eshell-scroll-to-bottom-on-output' and | |
798 | `eshell-scroll-show-maximum-output'. | |
799 | ||
800 | This function should be in the list `eshell-output-filter-functions'." | |
801 | (let* ((selected (selected-window)) | |
802 | (current (current-buffer)) | |
803 | (scroll eshell-scroll-to-bottom-on-output)) | |
804 | (unwind-protect | |
805 | (walk-windows | |
806 | (function | |
807 | (lambda (window) | |
808 | (if (eq (window-buffer window) current) | |
809 | (progn | |
810 | (select-window window) | |
811 | (if (and (< (point) eshell-last-output-end) | |
812 | (or (eq scroll t) (eq scroll 'all) | |
813 | ;; Maybe user wants point to jump to end. | |
814 | (and (eq scroll 'this) | |
815 | (eq selected window)) | |
816 | (and (eq scroll 'others) | |
817 | (not (eq selected window))) | |
818 | ;; If point was at the end, keep it at end. | |
819 | (>= (point) eshell-last-output-start))) | |
820 | (goto-char eshell-last-output-end)) | |
821 | ;; Optionally scroll so that the text | |
822 | ;; ends at the bottom of the window. | |
823 | (if (and eshell-scroll-show-maximum-output | |
824 | (>= (point) eshell-last-output-end)) | |
825 | (save-excursion | |
826 | (goto-char (point-max)) | |
827 | (recenter -1))) | |
828 | (select-window selected))))) | |
829 | nil t) | |
830 | (set-buffer current)))) | |
831 | ||
26b4dc84 GM |
832 | (defun eshell-beginning-of-input () |
833 | "Return the location of the start of the previous input." | |
834 | eshell-last-input-start) | |
835 | ||
836 | (defun eshell-beginning-of-output () | |
837 | "Return the location of the end of the previous output block." | |
838 | eshell-last-input-end) | |
839 | ||
840 | (defun eshell-end-of-output () | |
841 | "Return the location of the end of the previous output block." | |
842 | (if (eshell-using-module 'eshell-prompt) | |
843 | eshell-last-output-start | |
844 | eshell-last-output-end)) | |
845 | ||
846 | (defun eshell-kill-output () | |
847 | "Kill all output from interpreter since last input. | |
848 | Does not delete the prompt." | |
849 | (interactive) | |
850 | (save-excursion | |
851 | (goto-char (eshell-beginning-of-output)) | |
852 | (insert "*** output flushed ***\n") | |
853 | (delete-region (point) (eshell-end-of-output)))) | |
854 | ||
26b4dc84 GM |
855 | (defun eshell-show-output (&optional arg) |
856 | "Display start of this batch of interpreter output at top of window. | |
857 | Sets mark to the value of point when this command is run. | |
858 | With a prefix argument, narrows region to last command output." | |
859 | (interactive "P") | |
860 | (goto-char (eshell-beginning-of-output)) | |
861 | (set-window-start (selected-window) | |
862 | (save-excursion | |
863 | (goto-char (eshell-beginning-of-input)) | |
864 | (line-beginning-position))) | |
865 | (if arg | |
866 | (narrow-to-region (eshell-beginning-of-output) | |
867 | (eshell-end-of-output))) | |
868 | (eshell-end-of-output)) | |
869 | ||
870 | (defun eshell-mark-output (&optional arg) | |
871 | "Display start of this batch of interpreter output at top of window. | |
872 | Sets mark to the value of point when this command is run. | |
873 | With a prefix argument, narrows region to last command output." | |
874 | (interactive "P") | |
875 | (push-mark (eshell-show-output arg))) | |
876 | ||
877 | (defun eshell-kill-input () | |
878 | "Kill all text from last stuff output by interpreter to point." | |
879 | (interactive) | |
880 | (if (> (point) eshell-last-output-end) | |
881 | (kill-region eshell-last-output-end (point)) | |
882 | (let ((here (point))) | |
883 | (eshell-bol) | |
884 | (kill-region (point) here)))) | |
885 | ||
3e80ba3c RS |
886 | (defun eshell-show-maximum-output (&optional interactive) |
887 | "Put the end of the buffer at the bottom of the window. | |
888 | When run interactively, widen the buffer first." | |
889 | (interactive "p") | |
890 | (if interactive | |
26b4dc84 GM |
891 | (widen)) |
892 | (goto-char (point-max)) | |
893 | (recenter -1)) | |
894 | ||
895 | (defun eshell-get-old-input (&optional use-current-region) | |
896 | "Return the command input on the current line." | |
897 | (if use-current-region | |
898 | (buffer-substring (min (point) (mark)) | |
899 | (max (point) (mark))) | |
900 | (save-excursion | |
901 | (beginning-of-line) | |
902 | (and eshell-skip-prompt-function | |
903 | (funcall eshell-skip-prompt-function)) | |
904 | (let ((beg (point))) | |
905 | (end-of-line) | |
906 | (buffer-substring beg (point)))))) | |
907 | ||
908 | (defun eshell-copy-old-input () | |
909 | "Insert after prompt old input at point as new input to be edited." | |
910 | (interactive) | |
911 | (let ((input (eshell-get-old-input))) | |
912 | (goto-char eshell-last-output-end) | |
913 | (insert-and-inherit input))) | |
914 | ||
26b4dc84 GM |
915 | (defun eshell/exit () |
916 | "Leave or kill the Eshell buffer, depending on `eshell-kill-on-exit'." | |
917 | (throw 'eshell-terminal t)) | |
918 | ||
919 | (defun eshell-life-is-too-much () | |
920 | "Kill the current buffer (or bury it). Good-bye Eshell." | |
921 | (interactive) | |
922 | (if (not eshell-kill-on-exit) | |
923 | (bury-buffer) | |
924 | (kill-buffer (current-buffer)))) | |
925 | ||
926 | (defun eshell-truncate-buffer () | |
927 | "Truncate the buffer to `eshell-buffer-maximum-lines'. | |
928 | This function could be on `eshell-output-filter-functions' or bound to | |
929 | a key." | |
930 | (interactive) | |
931 | (save-excursion | |
932 | (goto-char eshell-last-output-end) | |
933 | (let ((lines (count-lines 1 (point))) | |
934 | (inhibit-read-only t)) | |
935 | (forward-line (- eshell-buffer-maximum-lines)) | |
936 | (beginning-of-line) | |
937 | (let ((pos (point))) | |
938 | (if (bobp) | |
32226619 | 939 | (if (called-interactively-p 'interactive) |
3e80ba3c | 940 | (message "Buffer too short to truncate")) |
26b4dc84 | 941 | (delete-region (point-min) (point)) |
32226619 | 942 | (if (called-interactively-p 'interactive) |
26b4dc84 GM |
943 | (message "Truncated buffer from %d to %d lines (%.1fk freed)" |
944 | lines eshell-buffer-maximum-lines | |
945 | (/ pos 1024.0)))))))) | |
946 | ||
947 | (custom-add-option 'eshell-output-filter-functions | |
948 | 'eshell-truncate-buffer) | |
949 | ||
a07c7ade | 950 | (defun eshell-send-invisible (str) |
26b4dc84 GM |
951 | "Read a string without echoing. |
952 | Then send it to the process running in the current buffer." | |
953 | (interactive "P") ; Defeat snooping via C-x ESC ESC | |
954 | (let ((str (read-passwd | |
6b61353c | 955 | (format "%s Password: " |
26b4dc84 GM |
956 | (process-name (eshell-interactive-process)))))) |
957 | (if (stringp str) | |
958 | (process-send-string (eshell-interactive-process) | |
959 | (concat str "\n")) | |
960 | (message "Warning: text will be echoed")))) | |
961 | ||
962 | (defun eshell-watch-for-password-prompt () | |
963 | "Prompt in the minibuffer for password and send without echoing. | |
a07c7ade | 964 | This function uses `eshell-send-invisible' to read and send a password to the |
26b4dc84 GM |
965 | buffer's process if STRING contains a password prompt defined by |
966 | `eshell-password-prompt-regexp'. | |
967 | ||
968 | This function could be in the list `eshell-output-filter-functions'." | |
969 | (when (eshell-interactive-process) | |
970 | (save-excursion | |
971 | (goto-char eshell-last-output-block-begin) | |
972 | (beginning-of-line) | |
973 | (if (re-search-forward eshell-password-prompt-regexp | |
974 | eshell-last-output-end t) | |
a07c7ade | 975 | (eshell-send-invisible nil))))) |
26b4dc84 GM |
976 | |
977 | (custom-add-option 'eshell-output-filter-functions | |
978 | 'eshell-watch-for-password-prompt) | |
979 | ||
980 | (defun eshell-handle-control-codes () | |
981 | "Act properly when certain control codes are seen." | |
982 | (save-excursion | |
983 | (let ((orig (point))) | |
984 | (goto-char eshell-last-output-block-begin) | |
985 | (unless (eolp) | |
986 | (beginning-of-line)) | |
987 | (while (< (point) eshell-last-output-end) | |
988 | (let ((char (char-after))) | |
989 | (cond | |
990 | ((eq char ?\r) | |
991 | (if (< (1+ (point)) eshell-last-output-end) | |
992 | (if (memq (char-after (1+ (point))) | |
993 | '(?\n ?\r)) | |
994 | (delete-char 1) | |
995 | (let ((end (1+ (point)))) | |
996 | (beginning-of-line) | |
997 | (delete-region (point) end))) | |
998 | (add-text-properties (point) (1+ (point)) | |
999 | '(invisible t)) | |
1000 | (forward-char))) | |
1001 | ((eq char ?\a) | |
1002 | (delete-char 1) | |
1003 | (beep)) | |
1004 | ((eq char ?\C-h) | |
1005 | (delete-backward-char 1) | |
1006 | (delete-char 1)) | |
1007 | (t | |
1008 | (forward-char)))))))) | |
1009 | ||
1010 | (custom-add-option 'eshell-output-filter-functions | |
1011 | 'eshell-handle-control-codes) | |
1012 | ||
db04f33f GM |
1013 | (autoload 'ansi-color-apply-on-region "ansi-color") |
1014 | ||
1c979bff MH |
1015 | (defun eshell-handle-ansi-color () |
1016 | "Handle ANSI color codes." | |
1c979bff MH |
1017 | (ansi-color-apply-on-region eshell-last-output-start |
1018 | eshell-last-output-end)) | |
1019 | ||
1020 | (custom-add-option 'eshell-output-filter-functions | |
1021 | 'eshell-handle-ansi-color) | |
1022 | ||
26b4dc84 | 1023 | ;;; esh-mode.el ends here |