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ac59aed8 | 1 | ;;; sh-script.el --- shell-script editing commands for Emacs |
133693bc | 2 | ;; Copyright (C) 1993, 1994, 1995 by Free Software Foundation, Inc. |
ac59aed8 | 3 | |
133693bc KH |
4 | ;; Author: Daniel.Pfeiffer@Informatik.START.dbp.de, fax (+49 69) 7588-2389 |
5 | ;; Version: 2.0d | |
ac59aed8 | 6 | ;; Maintainer: FSF |
133693bc | 7 | ;; Keywords: languages, unix |
ac59aed8 RS |
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 2, or (at your option) | |
14 | ;; 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; see the file COPYING. If not, write to | |
23 | ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | ||
25 | ;;; Commentary: | |
26 | ||
133693bc KH |
27 | ;; Major mode for editing shell scripts. Bourne, C and rc shells as well |
28 | ;; as various derivatives are supported and easily derived from. Structured | |
29 | ;; statements can be inserted with one command or abbrev. Completion is | |
30 | ;; available for filenames, variables known from the script, the shell and | |
31 | ;; the environment as well as commands. | |
ac59aed8 | 32 | |
133693bc KH |
33 | ;;; Known Bugs: |
34 | ||
35 | ;; - Since GNU Emacs' syntax can't handle the context-sensitive meanings of | |
36 | ;; the variable/number base/comment symbol `#', that has to be fontified by | |
37 | ;; regexp. This alas means that a quote `'' or `"' in a comment will | |
38 | ;; fontify VERY badly. The alternative is to have these frequent constructs | |
39 | ;; with `#' fontify as comments. Or maybe we intoduce a 'syntax text- | |
40 | ;; property? | |
41 | ;; - Variables in `"' strings aren't fontified because there's no way of | |
42 | ;; syntactically distinguishing those from `'' strings. | |
e932f2d2 | 43 | |
ac59aed8 RS |
44 | ;;; Code: |
45 | ||
46 | ;; page 1: variables and settings | |
47 | ;; page 2: mode-command and utility functions | |
48 | ;; page 3: statement syntax-commands for various shells | |
49 | ;; page 4: various other commands | |
50 | ||
133693bc KH |
51 | (require 'executable) |
52 | ||
53 | ||
54 | ;;;###autoload | |
55 | (or (assoc "sh" interpreter-mode-alist) | |
56 | (setq auto-mode-alist | |
57 | ;; matches files | |
58 | ;; - that have a suffix .sh, .csh or .shar (shell archive) | |
59 | ;; - that contain ressources for the various shells | |
60 | ;; - startup files for X11 | |
61 | (cons '("\\.c?sh\\'\\|\\.shar\\'\\|/\\.\\(z?profile\\|bash_profile\\|z?login\\|bash_login\\|z?logout\\|bash_logout\\|[kz]shrc\\|bashrc\\|t?cshrc\\|esrc\\|rcrc\\|[kz]shenv\\|xinitrc\\|startxrc\\|xsession\\)\\'" . sh-mode) | |
62 | auto-mode-alist) | |
63 | interpreter-mode-alist | |
64 | (nconc '(("ash" . sh-mode) | |
65 | ("bash" . sh-mode) | |
66 | ("csh" . sh-mode) | |
67 | ("dtksh" . sh-mode) | |
68 | ("es" . sh-mode) | |
69 | ("itcsh" . sh-mode) | |
70 | ("jsh" . sh-mode) | |
71 | ("ksh" . sh-mode) | |
72 | ("oash" . sh-mode) | |
73 | ("pdksh" . sh-mode) | |
74 | ("rc" . sh-mode) | |
75 | ("sh" . sh-mode) | |
76 | ("sh5" . sh-mode) | |
77 | ("tcsh" . sh-mode) | |
78 | ("wksh" . sh-mode) | |
79 | ("wsh" . sh-mode) | |
80 | ("zsh" . sh-mode)) | |
81 | interpreter-mode-alist))) | |
82 | ||
83 | ||
84 | (defvar sh-ancestor-alist | |
85 | '((ash . sh) | |
86 | (bash . jsh) | |
87 | (dtksh . ksh) | |
88 | (es . rc) | |
89 | (itcsh . tcsh) | |
90 | (jcsh . csh) | |
91 | (jsh . sh) | |
92 | (ksh . ksh88) | |
93 | (ksh88 . jsh) | |
94 | (oash . sh) | |
95 | (pdksh . ksh88) | |
96 | (posix . sh) | |
97 | (tcsh . csh) | |
98 | (wksh . ksh88) | |
99 | (wsh . sh) | |
100 | (zsh . ksh88)) | |
101 | "*Alist showing the direct ancestor of various shells. | |
102 | This is the basis for `sh-feature'. See also `sh-alias-alist'. | |
103 | By default we have the following three hierarchies: | |
104 | ||
105 | csh C Shell | |
106 | jcsh C Shell with Job Control | |
107 | tcsh Toronto C Shell | |
108 | itcsh ? Toronto C Shell | |
109 | rc Plan 9 Shell | |
110 | es Extensible Shell | |
111 | sh Bourne Shell | |
112 | ash ? Shell | |
113 | jsh Bourne Shell with Job Control | |
114 | bash GNU Bourne Again Shell | |
115 | ksh88 Korn Shell '88 | |
116 | ksh Korn Shell '93 | |
117 | dtksh CDE Desktop Korn Shell | |
118 | pdksh Public Domain Korn Shell | |
119 | wksh Window Korn Shell | |
120 | zsh Z Shell | |
121 | oash SCO OA (curses) Shell | |
122 | posix IEEE 1003.2 Shell Standard | |
123 | wsh ? Shell") | |
124 | ||
125 | ||
126 | (defvar sh-alias-alist | |
127 | (nconc (if (eq system-type 'linux) | |
128 | '((csh . tcsh) | |
129 | (ksh . pdksh) | |
130 | (sh . bash))) | |
131 | ;; for the time being | |
132 | '((ksh . ksh88) | |
133 | (sh5 . sh))) | |
134 | "*Alist for transforming shell names to what they really are. | |
135 | Use this where the name of the executable doesn't correspond to the type of | |
136 | shell it really is.") | |
137 | ||
138 | ||
139 | (defvar sh-shells | |
140 | '(("ash") ("bash") ("csh") ("dtksh") ("es") ("itcsh") ("jsh") ("ksh") | |
141 | ("oash") ("pdksh") ("rc") ("sh") ("tcsh") ("wksh") ("wsh") ("zsh")) | |
142 | "*Alist of shells available for completing read in `sh-set-shell'.") | |
143 | ||
144 | ||
145 | (defvar sh-shell-path (or (getenv "SHELL") "/bin/sh") | |
146 | "*The executable of the shell being programmed.") | |
147 | ||
148 | ||
149 | (defvar sh-shell-arg | |
150 | '((bash . "-norc") | |
151 | (csh . "-f") | |
152 | (ksh88 eval progn nil (if (file-exists-p "/etc/suid_profile") nil "-p")) | |
153 | (pdksh) | |
154 | (rc . "-p") | |
155 | (wksh . "-motif") | |
156 | (zsh . "-f")) | |
157 | "*Single argument string for the magic number. See `sh-feature'.") | |
158 | ||
159 | ||
160 | ||
161 | (defvar sh-shell (or (cdr (assq (intern (file-name-nondirectory sh-shell-path)) | |
162 | sh-alias-alist)) | |
163 | (intern (file-name-nondirectory sh-shell-path))) | |
164 | "The shell being programmed. This is set by \\[sh-set-shell].") | |
165 | ||
166 | ||
167 | ||
168 | (defvar sh-abbrevs | |
169 | '((csh eval sh-abbrevs shell | |
170 | "switch" 'sh-case) | |
171 | ||
172 | (es eval sh-abbrevs shell | |
173 | "function" 'sh-function) | |
174 | ||
175 | (ksh88 eval sh-abbrevs sh | |
176 | "select" 'sh-select) | |
177 | ||
178 | (rc eval sh-abbrevs shell | |
179 | "case" 'sh-case | |
180 | "function" 'sh-function) | |
181 | ||
182 | (sh eval sh-abbrevs shell | |
183 | "case" 'sh-case | |
184 | "function" 'sh-function | |
185 | "until" 'sh-until | |
186 | "getopts" 'sh-while-getopts) | |
187 | ||
188 | ;; The next entry is only used for defining the others | |
189 | (shell "for" sh-for | |
190 | "loop" sh-indexed-loop | |
191 | "if" sh-if | |
192 | "tmpfile" sh-tmp-file | |
193 | "while" sh-while) | |
194 | ||
195 | (zsh eval sh-abbrevs ksh88 | |
196 | "repeat" 'sh-repeat)) | |
197 | "Abbrev-table used in Shell-Script mode. See `sh-feature'. | |
198 | Due to the internal workings of abbrev tables, the shell name symbol is | |
199 | actually defined as the table for the like of \\[edit-abbrevs].") | |
ac59aed8 | 200 | |
ac59aed8 RS |
201 | |
202 | ||
203 | (defvar sh-mode-syntax-table | |
133693bc KH |
204 | '((csh eval identity sh) |
205 | (sh eval sh-mode-syntax-table () | |
206 | ;; #'s meanings depend on context which can't be expressed here | |
207 | ;; ?\# "<" | |
208 | ;; ?\^l ">#" | |
209 | ;; ?\n ">#" | |
210 | ?\" "\"\"" | |
211 | ?\' "\"'" | |
212 | ?\` ".`" | |
213 | ?$ "_" | |
214 | ?! "_" | |
215 | ?% "_" | |
216 | ?: "_" | |
217 | ?. "_" | |
218 | ?^ "_" | |
219 | ?~ "_") | |
220 | (rc eval sh-mode-syntax-table sh | |
221 | ?\" "_" | |
222 | ?\` ".")) | |
223 | "Syntax-table used in Shell-Script mode. See `sh-feature'.") | |
224 | ||
225 | ||
ac59aed8 RS |
226 | |
227 | (defvar sh-mode-map | |
228 | (let ((map (make-sparse-keymap))) | |
229 | (define-key map "\C-c(" 'sh-function) | |
230 | (define-key map "\C-c\C-w" 'sh-while) | |
231 | (define-key map "\C-c\C-u" 'sh-until) | |
133693bc | 232 | (define-key map "\C-c\C-t" 'sh-tmp-file) |
ac59aed8 | 233 | (define-key map "\C-c\C-s" 'sh-select) |
133693bc KH |
234 | (define-key map "\C-c\C-r" 'sh-repeat) |
235 | (define-key map "\C-c\C-o" 'sh-while-getopts) | |
ac59aed8 RS |
236 | (define-key map "\C-c\C-l" 'sh-indexed-loop) |
237 | (define-key map "\C-c\C-i" 'sh-if) | |
238 | (define-key map "\C-c\C-f" 'sh-for) | |
239 | (define-key map "\C-c\C-c" 'sh-case) | |
133693bc | 240 | |
ac59aed8 RS |
241 | (define-key map "=" 'sh-assignment) |
242 | (define-key map "\C-c+" 'sh-add) | |
133693bc KH |
243 | (define-key map "\C-c|" 'sh-execute-region) |
244 | (define-key map "\C-c!" 'executable-interpret) | |
245 | (define-key map "<" 'sh-maybe-here-document) | |
ac59aed8 RS |
246 | (define-key map "(" 'pair-insert-maybe) |
247 | (define-key map "{" 'pair-insert-maybe) | |
248 | (define-key map "[" 'pair-insert-maybe) | |
249 | (define-key map "'" 'pair-insert-maybe) | |
250 | (define-key map "`" 'pair-insert-maybe) | |
251 | (define-key map "\"" 'pair-insert-maybe) | |
252 | ||
253 | (define-key map "\t" 'sh-indent-line) | |
133693bc | 254 | (substitute-key-definition 'complete-tag 'comint-dynamic-complete |
ac59aed8 RS |
255 | map (current-global-map)) |
256 | (substitute-key-definition 'newline-and-indent 'sh-newline-and-indent | |
257 | map (current-global-map)) | |
ac59aed8 RS |
258 | (substitute-key-definition 'delete-backward-char |
259 | 'backward-delete-char-untabify | |
260 | map (current-global-map)) | |
261 | (define-key map "\C-c:" 'sh-set-shell) | |
262 | (substitute-key-definition 'beginning-of-defun | |
263 | 'sh-beginning-of-compound-command | |
264 | map (current-global-map)) | |
265 | (substitute-key-definition 'backward-sentence 'sh-beginning-of-command | |
266 | map (current-global-map)) | |
267 | (substitute-key-definition 'forward-sentence 'sh-end-of-command | |
268 | map (current-global-map)) | |
ac59aed8 RS |
269 | (define-key map [menu-bar insert] |
270 | (cons "Insert" (make-sparse-keymap "Insert"))) | |
271 | (define-key map [menu-bar insert sh-while] | |
133693bc | 272 | '("While loop" . sh-while)) |
ac59aed8 | 273 | (define-key map [menu-bar insert sh-until] |
133693bc KH |
274 | '("Until loop" . sh-until)) |
275 | (define-key map [menu-bar insert sh-tmp-file] | |
276 | '("Temporary file" . sh-tmp-file)) | |
ac59aed8 | 277 | (define-key map [menu-bar insert sh-select] |
133693bc KH |
278 | '("Select statement" . sh-select)) |
279 | (define-key map [menu-bar insert sh-repeat] | |
280 | '("Repeat loop" . sh-repeat)) | |
281 | (define-key map [menu-bar insert sh-while-getopts] | |
282 | '("Options loop" . sh-while-getopts)) | |
ac59aed8 | 283 | (define-key map [menu-bar insert sh-indexed-loop] |
133693bc | 284 | '("Indexed loop" . sh-indexed-loop)) |
ac59aed8 | 285 | (define-key map [menu-bar insert sh-if] |
133693bc | 286 | '("If statement" . sh-if)) |
ac59aed8 | 287 | (define-key map [menu-bar insert sh-for] |
133693bc | 288 | '("For loop" . sh-for)) |
ac59aed8 | 289 | (define-key map [menu-bar insert sh-case] |
133693bc | 290 | '("Case statement" . sh-case)) |
ac59aed8 RS |
291 | map) |
292 | "Keymap used in Shell-Script mode.") | |
293 | ||
294 | ||
295 | ||
133693bc KH |
296 | (defvar sh-dynamic-complete-functions |
297 | '(shell-dynamic-complete-environment-variable | |
298 | shell-dynamic-complete-command | |
299 | comint-dynamic-complete-filename) | |
300 | "*Functions for doing TAB dynamic completion.") | |
ac59aed8 RS |
301 | |
302 | ||
133693bc KH |
303 | (defvar sh-require-final-newline |
304 | '((csh . t) | |
305 | (pdksh . t) | |
306 | (rc eval . require-final-newline) | |
307 | (sh eval . require-final-newline)) | |
308 | "*Value of `require-final-newline' in Shell-Script mode buffers. | |
309 | See `sh-feature'.") | |
ac59aed8 RS |
310 | |
311 | ||
133693bc KH |
312 | (defvar sh-comment-prefix |
313 | '((csh . "\\(^\\|[^$]\\|\\$[^{]\\)") | |
314 | (rc eval identity csh) | |
315 | (sh . "\\(^\\|[ \t|&;()]\\)")) | |
316 | "*Regexp matching what may come before a comment `#'. | |
317 | This must contain one \\(grouping\\) since it is the basis for fontifying | |
318 | comments as well as for `comment-start-skip'. | |
319 | See `sh-feature'.") | |
ac59aed8 RS |
320 | |
321 | ||
133693bc KH |
322 | (defvar sh-assignment-regexp |
323 | '((csh . "\\<\\([a-zA-Z0-9_]+\\)\\(\\[.+\\]\\)?[ \t]*[-+*/%^]?=") | |
324 | ;; actually spaces are only supported in let/(( ... )) | |
325 | (ksh88 . "\\<\\([a-zA-Z0-9_]+\\)\\(\\[.+\\]\\)?[ \t]*\\([-+*/%&|~^]\\|<<\\|>>\\)?=") | |
326 | (rc . "\\<\\([a-zA-Z0-9_*]+\\)[ \t]*=") | |
327 | (sh . "\\<\\([a-zA-Z0-9_]+\\)=")) | |
328 | "*Regexp for the variable name and what may follow in an assignment. | |
329 | First grouping matches the variable name. This is upto and including the `=' | |
330 | sign. See `sh-feature'.") | |
ac59aed8 | 331 | |
ac59aed8 | 332 | |
133693bc KH |
333 | (defvar sh-indentation 4 |
334 | "The width for further indentation in Shell-Script mode.") | |
ac59aed8 | 335 | |
ac59aed8 RS |
336 | |
337 | (defvar sh-remember-variable-min 3 | |
338 | "*Don't remember variables less than this length for completing reads.") | |
339 | ||
340 | ||
133693bc KH |
341 | (defvar sh-header-marker nil |
342 | "When non-`nil' is the end of header for prepending by \\[sh-execute-region]. | |
343 | That command is also used for setting this variable.") | |
344 | ||
345 | ||
ac59aed8 RS |
346 | (defvar sh-beginning-of-command |
347 | "\\([;({`|&]\\|^\\)[ \t]*\\([/~:a-zA-Z0-9]\\)" | |
348 | "*Regexp to determine the beginning of a shell command. | |
349 | The actual command starts at the beginning of the second \\(grouping\\).") | |
350 | ||
133693bc | 351 | |
ac59aed8 RS |
352 | (defvar sh-end-of-command |
353 | "\\([/~:a-zA-Z0-9]\\)[ \t]*\\([;#)}`|&]\\|$\\)" | |
354 | "*Regexp to determine the end of a shell command. | |
355 | The actual command ends at the end of the first \\(grouping\\).") | |
356 | ||
357 | ||
358 | ||
133693bc | 359 | (defvar sh-here-document-word "EOF" |
ac59aed8 RS |
360 | "Word to delimit here documents.") |
361 | ||
362 | ||
133693bc KH |
363 | (defvar sh-builtins |
364 | '((bash eval sh-append sh | |
365 | "alias" "bg" "bind" "builtin" "bye" "command" "declare" "dirs" | |
366 | "enable" "fc" "fg" "function" "help" "history" "jobs" "kill" "let" | |
367 | "local" "logout" "popd" "pushd" "source" "suspend" "typeset" | |
368 | "unalias") | |
ac59aed8 | 369 | |
133693bc KH |
370 | ;; The next entry is only used for defining the others |
371 | (bourne eval sh-append shell | |
372 | "do" "done" "elif" "esac" "export" "fi" "for" "getopts" "in" | |
373 | "newgrp" "pwd" "read" "readonly" "return" "times" "trap" "ulimit" | |
374 | "until") | |
ac59aed8 | 375 | |
133693bc KH |
376 | (csh eval sh-append shell |
377 | "alias" "breaksw" "chdir" "default" "end" "endif" "endsw" "foreach" | |
378 | "glob" "goto" "history" "limit" "logout" "nice" "nohup" "onintr" | |
379 | "rehash" "repeat" "setenv" "source" "switch" "time" "unalias" | |
380 | "unhash") | |
ac59aed8 | 381 | |
133693bc KH |
382 | (es "access" "apids" "break" "catch" "cd" "echo" "eval" "exec" "exit" |
383 | "false" "fn" "for" "forever" "fork" "if" "let" "limit" "local" | |
384 | "newpgrp" "result" "return" "throw" "time" "true" "umask" | |
385 | "unwind-protect" "var" "vars" "wait" "whatis" "while") | |
ac59aed8 | 386 | |
133693bc KH |
387 | (jsh eval sh-append sh |
388 | "bg" "fg" "jobs" "kill" "stop" "suspend") | |
ac59aed8 | 389 | |
133693bc KH |
390 | (jcsh eval sh-append csh |
391 | "bg" "fg" "jobs" "kill" "notify" "stop" "suspend") | |
392 | ||
393 | (ksh88 eval sh-append bourne | |
394 | "alias" "bg" "false" "fc" "fg" "function" "jobs" "kill" "let" | |
395 | "print" "select" "time" "typeset" "unalias" "whence") | |
396 | ||
397 | (oash eval sh-append sh | |
398 | "checkwin" "dateline" "error" "form" "menu" "newwin" "oadeinit" | |
399 | "oaed" "oahelp" "oainit" "pp" "ppfile" "scan" "scrollok" "wattr" | |
400 | "wclear" "werase" "win" "wmclose" "wmmessage" "wmopen" "wmove" | |
401 | "wmtitle" "wrefresh") | |
402 | ||
403 | (pdksh eval sh-append ksh88 | |
404 | "bind") | |
405 | ||
406 | (posix eval sh-append sh | |
407 | "command") | |
408 | ||
409 | (rc "break" "builtin" "case" "cd" "echo" "else" "eval" "exec" "exit" "fn" | |
410 | "for" "if" "in" "limit" "newpgrp" "return" "shift" "switch" "umask" | |
411 | "wait" "whatis" "while") | |
412 | ||
413 | (sh eval sh-append bourne | |
414 | "hash" "test" "type") | |
415 | ||
416 | ;; The next entry is only used for defining the others | |
417 | (shell "break" "case" "cd" "continue" "echo" "else" "eval" "exec" "exit" | |
418 | "if" "set" "shift" "then" "umask" "unset" "wait" "while") | |
419 | ||
420 | (zsh eval sh-append ksh88 | |
421 | "autoload" "bindkey" "builtin" "bye" "chdir" "compctl" "declare" | |
422 | "dirs" "disable" "disown" "echotc" "enable" "functions" "getln" | |
423 | "hash" "history" "integer" "limit" "local" "log" "logout" "popd" | |
424 | "pushd" "r" "readonly" "rehash" "sched" "setopt" "source" "suspend" | |
425 | "true" "ttyctl" "type" "unfunction" "unhash" "unlimit" "unsetopt" | |
426 | "vared" "which")) | |
427 | "*List of all shell builtins for completing read and fontification. | |
428 | Note that on some systems not all builtins are available or some are | |
429 | implemented as aliases. See `sh-feature'.") | |
430 | ||
431 | ||
432 | (defvar sh-leading-keywords | |
433 | '((bash eval sh-append sh | |
434 | "builtin" "command" "enable") | |
435 | ||
436 | ;; The next entry is only used for defining the others | |
437 | (bourne "do" "elif" "else" "eval" "if" "then" "trap" "until" "while") | |
438 | ||
439 | (csh "else") | |
440 | ||
441 | (es "eval" "time" "true" "umask" | |
442 | "unwind-protect" "whatis") | |
443 | ||
444 | (ksh88 eval sh-append bourne | |
445 | "time" "whence") | |
446 | ||
447 | (posix eval sh-append sh | |
448 | "command") | |
449 | ||
450 | (rc "builtin" "else" "eval" "whatis") | |
451 | ||
452 | (sh eval sh-append bourne | |
453 | "type") | |
454 | ||
455 | (zsh eval sh-append ksh88 | |
456 | "builtin" "disable" "enable" "type" "unhash" "which")) | |
457 | "*List of keywords that may be immediately followed by a command(-name). | |
458 | See `sh-feature'.") | |
459 | ||
460 | ||
461 | ||
462 | (defvar sh-variables | |
463 | '((bash eval sh-append sh | |
464 | "allow_null_glob_expansion" "auto_resume" "BASH" "BASH_VERSION" | |
465 | "cdable_vars" "ENV" "EUID" "FCEDIT" "FIGNORE" "glob_dot_filenames" | |
466 | "histchars" "HISTFILE" "HISTFILESIZE" "history_control" "HISTSIZE" | |
467 | "hostname_completion_file" "HOSTTYPE" "IGNOREEOF" "ignoreeof" | |
468 | "LINENO" "MAIL_WARNING" "noclobber" "nolinks" "notify" | |
469 | "no_exit_on_failed_exec" "NO_PROMPT_VARS" "OLDPWD" "OPTERR" "PPID" | |
470 | "PROMPT_COMMAND" "PS4" "pushd_silent" "PWD" "RANDOM" "REPLY" | |
471 | "SECONDS" "SHLVL" "TMOUT" "UID") | |
472 | ||
473 | (csh eval sh-append shell | |
474 | "argv" "cdpath" "child" "echo" "histchars" "history" "home" | |
475 | "ignoreeof" "mail" "noclobber" "noglob" "nonomatch" "path" "prompt" | |
476 | "shell" "status" "time" "verbose") | |
477 | ||
478 | (es eval sh-append shell | |
479 | "apid" "cdpath" "CDPATH" "history" "home" "ifs" "noexport" "path" | |
480 | "pid" "prompt" "signals") | |
481 | ||
482 | (jcsh eval sh-append csh | |
483 | "notify") | |
484 | ||
485 | (ksh88 eval sh-append sh | |
486 | "ENV" "ERRNO" "FCEDIT" "FPATH" "HISTFILE" "HISTSIZE" "LINENO" | |
487 | "OLDPWD" "PPID" "PS3" "PS4" "PWD" "RANDOM" "REPLY" "SECONDS" | |
488 | "TMOUT") | |
489 | ||
490 | (oash eval sh-append sh | |
491 | "FIELD" "FIELD_MAX" "LAST_KEY" "OALIB" "PP_ITEM" "PP_NUM") | |
492 | ||
493 | (rc eval sh-append shell | |
494 | "apid" "apids" "cdpath" "CDPATH" "history" "home" "ifs" "path" "pid" | |
495 | "prompt" "status") | |
496 | ||
497 | (sh eval sh-append shell | |
498 | "CDPATH" "IFS" "OPTARG" "OPTIND" "PS1" "PS2") | |
499 | ||
500 | ;; The next entry is only used for defining the others | |
501 | (shell "COLUMNS" "EDITOR" "HOME" "HUSHLOGIN" "LANG" "LC_COLLATE" | |
502 | "LC_CTYPE" "LC_MESSAGES" "LC_MONETARY" "LC_NUMERIC" "LC_TIME" | |
503 | "LINES" "LOGNAME" "MAIL" "MAILCHECK" "MAILPATH" "PAGER" "PATH" | |
504 | "SHELL" "TERM" "TERMCAP" "TERMINFO" "VISUAL") | |
505 | ||
506 | (tcsh eval sh-append csh | |
507 | "addsuffix" "ampm" "autocorrect" "autoexpand" "autolist" | |
508 | "autologout" "chase_symlinks" "correct" "dextract" "edit" "el" | |
509 | "fignore" "gid" "histlit" "HOST" "HOSTTYPE" "HPATH" | |
510 | "ignore_symlinks" "listjobs" "listlinks" "listmax" "matchbeep" | |
511 | "nobeep" "NOREBIND" "oid" "printexitvalue" "prompt2" "prompt3" | |
512 | "pushdsilent" "pushdtohome" "recexact" "recognize_only_executables" | |
513 | "rmstar" "savehist" "SHLVL" "showdots" "sl" "SYSTYPE" "tcsh" "term" | |
514 | "tperiod" "tty" "uid" "version" "visiblebell" "watch" "who" | |
515 | "wordchars") | |
516 | ||
517 | (zsh eval sh-append ksh88 | |
518 | "BAUD" "bindcmds" "cdpath" "DIRSTACKSIZE" "fignore" "FIGNORE" "fpath" | |
519 | "HISTCHARS" "hostcmds" "hosts" "HOSTS" "LISTMAX" "LITHISTSIZE" | |
520 | "LOGCHECK" "mailpath" "manpath" "NULLCMD" "optcmds" "path" "POSTEDIT" | |
521 | "prompt" "PROMPT" "PROMPT2" "PROMPT3" "PROMPT4" "psvar" "PSVAR" | |
522 | "READNULLCMD" "REPORTTIME" "RPROMPT" "RPS1" "SAVEHIST" "SPROMPT" | |
523 | "STTY" "TIMEFMT" "TMOUT" "TMPPREFIX" "varcmds" "watch" "WATCH" | |
524 | "WATCHFMT" "WORDCHARS" "ZDOTDIR")) | |
525 | "List of all shell variables available for completing read. | |
526 | See `sh-feature'.") | |
527 | ||
528 | ||
529 | ||
530 | (defvar sh-font-lock-keywords | |
531 | '((csh eval sh-append shell | |
532 | '("\\${?[#?]?\\([A-Za-z_][A-Za-z0-9_]*\\|0\\)" 1 | |
533 | font-lock-function-name-face) | |
534 | '("\\(^\\|[ \t]\\)\\(default\\):" 2 | |
535 | font-lock-keyword-face t)) | |
536 | ||
537 | (dtksh eval identity wksh) | |
538 | ||
539 | (es eval sh-append executable-font-lock-keywords | |
540 | '("\\$#?\\([A-Za-z_][A-Za-z0-9_]*\\|[0-9]+\\)" 1 | |
541 | font-lock-function-name-face)) | |
542 | ||
543 | (rc eval sh-append es | |
544 | '("\\(^\\|[ \t]\\)\\(else\\( if\\)?\\)\\>" 2 | |
545 | font-lock-keyword-face t)) | |
546 | ||
547 | (sh eval sh-append shell | |
548 | '("\\$\\({#?\\)?\\([A-Za-z_][A-Za-z0-9_]*\\|[-#?@!]\\)" 2 | |
549 | font-lock-function-name-face) | |
550 | " in\\([ \t]\\|$\\)") | |
551 | ||
552 | ;; The next entry is only used for defining the others | |
553 | (shell eval sh-append executable-font-lock-keywords | |
554 | '("\\\\." 0 font-lock-string-face) | |
555 | '("\\${?\\([A-Za-z_][A-Za-z0-9_]*\\|[0-9]+\\|[$*_]\\)" 1 | |
556 | font-lock-function-name-face)) | |
557 | ||
558 | (wksh eval sh-append ksh88 | |
559 | '("\\(^\\|[^-._A-Za-z0-9]\\)\\(Xt[A-Z][A-Za-z]*\\)\\($\\|[^-._A-Za-z0-9]\\)" 2 font-lock-keyword-face))) | |
560 | "*Rules for highlighting shell scripts. See `sh-feature'.") | |
561 | ||
562 | \f | |
563 | ;; mode-command and utility functions | |
564 | ||
565 | ;;;###autoload | |
ac59aed8 RS |
566 | (defun sh-mode () |
567 | "Major mode for editing shell scripts. | |
568 | This mode works for many shells, since they all have roughly the same syntax, | |
569 | as far as commands, arguments, variables, pipes, comments etc. are concerned. | |
570 | Unless the file's magic number indicates the shell, your usual shell is | |
571 | assumed. Since filenames rarely give a clue, they are not further analyzed. | |
572 | ||
133693bc KH |
573 | This mode adapts to the variations between shells (see `sh-set-shell') by |
574 | means of an inheritance based feature lookup (see `sh-feature'). This | |
575 | mechanism applies to all variables (including skeletons) that pertain to | |
576 | shell-specific features. | |
ac59aed8 | 577 | |
133693bc KH |
578 | The default style of this mode is that of Rosenblatt's Korn shell book. |
579 | The syntax of the statements varies with the shell being used. The | |
580 | following commands are available, based on the current shell's syntax: | |
ac59aed8 RS |
581 | |
582 | \\[sh-case] case statement | |
583 | \\[sh-for] for loop | |
584 | \\[sh-function] function definition | |
585 | \\[sh-if] if statement | |
586 | \\[sh-indexed-loop] indexed loop from 1 to n | |
133693bc KH |
587 | \\[sh-while-getopts] while getopts loop |
588 | \\[sh-repeat] repeat loop | |
589 | \\[sh-select] select loop | |
ac59aed8 RS |
590 | \\[sh-until] until loop |
591 | \\[sh-while] while loop | |
592 | ||
593 | \\[backward-delete-char-untabify] Delete backward one position, even if it was a tab. | |
594 | \\[sh-newline-and-indent] Delete unquoted space and indent new line same as this one. | |
595 | \\[sh-end-of-command] Go to end of successive commands. | |
596 | \\[sh-beginning-of-command] Go to beginning of successive commands. | |
597 | \\[sh-set-shell] Set this buffer's shell, and maybe its magic number. | |
133693bc | 598 | \\[sh-execute-region] Have optional header and region be executed in a subshell. |
ac59aed8 | 599 | |
ac59aed8 RS |
600 | \\[sh-maybe-here-document] Without prefix, following an unquoted < inserts here document. |
601 | {, (, [, ', \", ` | |
133693bc KH |
602 | Unless quoted with \\, insert the pairs {}, (), [], or '', \"\", ``. |
603 | ||
604 | If you generally program a shell different from your login shell you can | |
605 | set `sh-shell-path' accordingly. If your shell's file name doesn't correctly | |
606 | indicate what shell it is use `sh-alias-alist' to translate. | |
607 | ||
608 | If your shell gives error messages with line numbers, you can use \\[executable-interpret] | |
609 | with your script for an edit-interpret-debug cycle." | |
ac59aed8 RS |
610 | (interactive) |
611 | (kill-all-local-variables) | |
ac59aed8 RS |
612 | (use-local-map sh-mode-map) |
613 | (make-local-variable 'indent-line-function) | |
133693bc KH |
614 | (make-local-variable 'indent-region-function) |
615 | (make-local-variable 'paragraph-start) | |
616 | (make-local-variable 'paragraph-separate) | |
ac59aed8 RS |
617 | (make-local-variable 'comment-start) |
618 | (make-local-variable 'comment-start-skip) | |
ac59aed8 | 619 | (make-local-variable 'require-final-newline) |
133693bc | 620 | (make-local-variable 'sh-header-marker) |
ac59aed8 RS |
621 | (make-local-variable 'sh-shell-path) |
622 | (make-local-variable 'sh-shell) | |
ac59aed8 RS |
623 | (make-local-variable 'pair-alist) |
624 | (make-local-variable 'pair-filter) | |
133693bc KH |
625 | (make-local-variable 'font-lock-keywords) |
626 | (make-local-variable 'comint-dynamic-complete-functions) | |
627 | (make-local-variable 'comint-prompt-regexp) | |
628 | (make-local-variable 'font-lock-keywords-case-fold-search) | |
629 | (make-local-variable 'skeleton-filter) | |
630 | (make-local-variable 'process-environment) | |
ac59aed8 RS |
631 | (setq major-mode 'sh-mode |
632 | mode-name "Shell-script" | |
ac59aed8 | 633 | indent-line-function 'sh-indent-line |
133693bc KH |
634 | ;; not very clever, but enables wrapping skeletons around regions |
635 | indent-region-function (lambda (b e) | |
636 | (indent-rigidly b e sh-indentation)) | |
637 | paragraph-start "^$\\|^\f" | |
638 | paragraph-separate paragraph-start | |
ac59aed8 | 639 | comment-start "# " |
133693bc KH |
640 | font-lock-keywords-case-fold-search nil |
641 | comint-dynamic-complete-functions sh-dynamic-complete-functions | |
642 | ;; we can't look if previous line ended with `\' | |
643 | comint-prompt-regexp "^[ \t]*" | |
ac59aed8 | 644 | pair-alist '((?` _ ?`)) |
133693bc KH |
645 | pair-filter 'sh-quoted-p |
646 | skeleton-further-elements '((< '(- (min sh-indentation | |
647 | (current-column))))) | |
648 | skeleton-filter 'sh-feature) | |
649 | ;; parse or insert magic number for exec() and set all variables depending | |
650 | ;; on the shell thus determined | |
651 | (goto-char (point-min)) | |
652 | (sh-set-shell | |
653 | (if (looking-at "#![\t ]*\\([^\t\n ]+\\)") | |
654 | (buffer-substring (match-beginning 1) (match-end 1)) | |
655 | sh-shell-path)) | |
ac59aed8 | 656 | (run-hooks 'sh-mode-hook)) |
133693bc | 657 | ;;;###autoload |
ac59aed8 RS |
658 | (defalias 'shell-script-mode 'sh-mode) |
659 | ||
660 | ||
661 | ||
133693bc KH |
662 | (defun sh-set-shell (shell) |
663 | "Set this buffer's shell to SHELL (a string). | |
664 | Makes this script executable via `executable-set-magic'. | |
665 | Calls the value of `sh-set-shell-hook' if set." | |
666 | (interactive (list (completing-read "Name or path of shell: " sh-shells))) | |
667 | (if (eq this-command 'sh-set-shell) | |
668 | ;; prevent querying | |
669 | (setq this-command 'executable-set-magic)) | |
670 | (setq sh-shell (intern (file-name-nondirectory shell)) | |
671 | sh-shell (or (cdr (assq sh-shell sh-alias-alist)) | |
672 | sh-shell) | |
673 | sh-shell-path (executable-set-magic shell (sh-feature sh-shell-arg)) | |
674 | local-abbrev-table (sh-feature sh-abbrevs) | |
675 | require-final-newline (sh-feature sh-require-final-newline) | |
676 | font-lock-keywords | |
677 | (sh-feature | |
678 | sh-font-lock-keywords | |
679 | (lambda (list) | |
680 | (sh-append list | |
681 | (cons (concat (sh-feature sh-comment-prefix) | |
682 | "\\(#.*\\)") | |
683 | '(2 font-lock-comment-face t)) | |
684 | ;; first grouping should include all keywords such | |
685 | ;; as while, do ... that may be followed by a | |
686 | ;; command, but neither t nor keep will fontify it | |
687 | (cons (concat "\\(^\\|[|&;()]\\)[ \t]*\\(\\(\\(" | |
688 | (mapconcat 'identity | |
689 | (sh-feature | |
690 | sh-leading-keywords) | |
691 | "\\|") | |
692 | "\\)[ \t]+\\)?\\(" | |
693 | (mapconcat 'identity | |
694 | (sh-feature sh-builtins) | |
695 | "\\|") | |
696 | "\\)\\)\\($\\|[ \t|&;()]\\)") | |
697 | '(2 font-lock-keyword-face 'keep)) | |
698 | (cons (sh-feature sh-assignment-regexp) | |
699 | '(1 font-lock-function-name-face))))) | |
700 | comment-start-skip (concat (sh-feature sh-comment-prefix) "#+[\t ]*") | |
701 | mode-line-process (format "[%s]" sh-shell) | |
702 | process-environment (default-value 'process-environment) | |
703 | shell (sh-feature sh-variables)) | |
704 | (set-syntax-table (sh-feature sh-mode-syntax-table)) | |
705 | (save-excursion | |
706 | (while (search-forward "=" nil t) | |
707 | (sh-assignment 0))) | |
708 | (while shell | |
709 | (sh-remember-variable (car shell)) | |
710 | (setq shell (cdr shell))) | |
711 | (and (boundp 'font-lock-mode) | |
712 | font-lock-mode | |
713 | (font-lock-mode (font-lock-mode 0))) | |
714 | (run-hooks 'sh-set-shell-hook)) | |
715 | ||
716 | ||
ac59aed8 | 717 | |
133693bc KH |
718 | (defun sh-feature (list &optional function) |
719 | "Index ALIST by the current shell. | |
720 | If ALIST isn't a list where every element is a cons, it is returned as is. | |
721 | Else indexing follows an inheritance logic which works in two ways: | |
722 | ||
723 | - Fall back on successive ancestors (see `sh-ancestor-alist') as long as | |
724 | the alist contains no value for the current shell. | |
725 | ||
726 | - If the value thus looked up is a list starting with `eval' its `cdr' is | |
727 | first evaluated. If that is also a list and the first argument is a | |
728 | symbol in ALIST it is not evaluated, but rather recursively looked up in | |
729 | ALIST to allow the function called to define the value for one shell to be | |
730 | derived from another shell. While calling the function, is the car of the | |
731 | alist element is the current shell. | |
732 | The value thus determined is physically replaced into the alist. | |
733 | ||
734 | Optional FUNCTION is applied to the determined value and the result is cached | |
735 | in ALIST." | |
736 | (or (if (consp list) | |
737 | (let ((l list)) | |
738 | (while (and l (consp (car l))) | |
739 | (setq l (cdr l))) | |
740 | (if l list))) | |
741 | (if function | |
742 | (cdr (assoc (setq function (cons sh-shell function)) list))) | |
743 | (let ((sh-shell sh-shell) | |
744 | elt val) | |
745 | (while (and sh-shell | |
746 | (not (setq elt (assq sh-shell list)))) | |
747 | (setq sh-shell (cdr (assq sh-shell sh-ancestor-alist)))) | |
748 | (if (and (consp (setq val (cdr elt))) | |
749 | (eq (car val) 'eval)) | |
750 | (setcdr elt | |
751 | (setq val | |
752 | (eval (if (consp (setq val (cdr val))) | |
753 | (let ((sh-shell (car (cdr val))) | |
754 | function) | |
755 | (if (assq sh-shell list) | |
756 | (setcar (cdr val) | |
757 | (list 'quote | |
758 | (sh-feature list)))) | |
759 | val) | |
760 | val))))) | |
761 | (if function | |
762 | (nconc list | |
763 | (list (cons function | |
764 | (setq sh-shell (car function) | |
765 | val (funcall (cdr function) val)))))) | |
766 | val))) | |
767 | ||
768 | ||
769 | ||
770 | (defun sh-abbrevs (ancestor &rest list) | |
771 | "Iff it isn't, define the current shell as abbrev table and fill that. | |
772 | Abbrev table will inherit all abbrevs from ANCESTOR, which is either an abbrev | |
773 | table or a list of (NAME1 EXPANSION1 ...). In addition it will define abbrevs | |
774 | according to the remaining arguments NAMEi EXPANSIONi ... | |
775 | EXPANSION may be either a string or a skeleton command." | |
776 | (or (if (boundp sh-shell) | |
777 | (symbol-value sh-shell)) | |
778 | (progn | |
779 | (if (listp ancestor) | |
780 | (nconc list ancestor)) | |
781 | (define-abbrev-table sh-shell ()) | |
782 | (if (vectorp ancestor) | |
783 | (mapatoms (lambda (atom) | |
784 | (or (eq atom 0) | |
785 | (define-abbrev (symbol-value sh-shell) | |
786 | (symbol-name atom) | |
787 | (symbol-value atom) | |
788 | (symbol-function atom)))) | |
789 | ancestor)) | |
790 | (while list | |
791 | (define-abbrev (symbol-value sh-shell) | |
792 | (car list) | |
793 | (if (stringp (car (cdr list))) | |
794 | (car (cdr list)) | |
795 | "") | |
796 | (if (symbolp (car (cdr list))) | |
797 | (car (cdr list)))) | |
798 | (setq list (cdr (cdr list))))) | |
799 | (symbol-value sh-shell))) | |
800 | ||
801 | ||
802 | (defun sh-mode-syntax-table (table &rest list) | |
803 | "Copy TABLE and set syntax for succesive CHARs according to strings S." | |
804 | (setq table (copy-syntax-table table)) | |
805 | (while list | |
806 | (modify-syntax-entry (car list) (car (cdr list)) table) | |
807 | (setq list (cdr (cdr list)))) | |
808 | table) | |
809 | ||
810 | ||
811 | (defun sh-append (ancestor &rest list) | |
812 | "Return list composed of first argument (a list) physically appended to rest." | |
813 | (nconc list ancestor)) | |
814 | ||
815 | ||
816 | (defun sh-modify (skeleton &rest list) | |
817 | "Modify a copy of SKELETON by replacing I1 with REPL1, I2 with REPL2 ..." | |
818 | (setq skeleton (copy-sequence skeleton)) | |
819 | (while list | |
820 | (setcar (or (nthcdr (car list) skeleton) | |
821 | (error "Index %d out of bounds" (car list))) | |
822 | (car (cdr list))) | |
823 | (setq list (nthcdr 2 list))) | |
824 | skeleton) | |
ac59aed8 RS |
825 | |
826 | ||
827 | (defun sh-indent-line () | |
133693bc KH |
828 | "Indent as far as preceding non-empty line, then by steps of `sh-indentation'. |
829 | Lines containing only comments are considered empty." | |
ac59aed8 RS |
830 | (interactive) |
831 | (let ((previous (save-excursion | |
133693bc KH |
832 | (while (progn |
833 | (line-move -1) | |
834 | (back-to-indentation) | |
835 | (or (eolp) | |
836 | (eq (following-char) ?#)))) | |
837 | (current-column))) | |
838 | current) | |
ac59aed8 RS |
839 | (save-excursion |
840 | (indent-to (if (eq this-command 'newline-and-indent) | |
841 | previous | |
842 | (if (< (current-column) | |
133693bc KH |
843 | (setq current (progn (back-to-indentation) |
844 | (current-column)))) | |
ac59aed8 | 845 | (if (eolp) previous 0) |
133693bc KH |
846 | (delete-region (point) |
847 | (progn (beginning-of-line) (point))) | |
ac59aed8 | 848 | (if (eolp) |
133693bc KH |
849 | (max previous (* (1+ (/ current sh-indentation)) |
850 | sh-indentation)) | |
851 | (* (1+ (/ current sh-indentation)) sh-indentation)))))) | |
852 | (if (< (current-column) (current-indentation)) | |
853 | (skip-chars-forward " \t")))) | |
854 | ||
855 | ||
856 | (defun sh-execute-region (start end &optional flag) | |
857 | "Pass optional header and region to a subshell for noninteractive execution. | |
858 | The working directory is that of the buffer, and only environment variables | |
859 | are already set which is why you can mark a header within the script. | |
860 | ||
861 | With a positive prefix ARG, instead of sending region, define header from | |
862 | beginning of buffer to point. With a negative prefix ARG, instead of sending | |
863 | region, clear header." | |
864 | (interactive "r\nP") | |
865 | (if flag | |
866 | (setq sh-header-marker (if (> (prefix-numeric-value flag) 0) | |
867 | (point-marker))) | |
868 | (if sh-header-marker | |
869 | (save-excursion | |
870 | (let (buffer-undo-list) | |
871 | (goto-char sh-header-marker) | |
872 | (append-to-buffer (current-buffer) start end) | |
873 | (shell-command-on-region (point-min) | |
874 | (setq end (+ sh-header-marker | |
875 | (- end start))) | |
876 | sh-shell-path) | |
877 | (delete-region sh-header-marker end))) | |
878 | (shell-command-on-region start end (concat sh-shell-path " -"))))) | |
ac59aed8 RS |
879 | |
880 | ||
881 | (defun sh-remember-variable (var) | |
882 | "Make VARIABLE available for future completing reads in this buffer." | |
883 | (or (< (length var) sh-remember-variable-min) | |
133693bc KH |
884 | (getenv var) |
885 | (setq process-environment (cons (concat var "=0") process-environment))) | |
ac59aed8 RS |
886 | var) |
887 | ||
888 | ||
ac59aed8 RS |
889 | |
890 | (defun sh-quoted-p () | |
891 | "Is point preceded by an odd number of backslashes?" | |
133693bc | 892 | (eq -1 (% (save-excursion (skip-chars-backward "\\\\")) 2))) |
ac59aed8 RS |
893 | \f |
894 | ;; statement syntax-commands for various shells | |
895 | ||
896 | ;; You are welcome to add the syntax or even completely new statements as | |
897 | ;; appropriate for your favorite shell. | |
898 | ||
133693bc KH |
899 | (define-skeleton sh-case |
900 | "Insert a case/switch statement. See `sh-feature'." | |
ac59aed8 RS |
901 | (csh "expression: " |
902 | "switch( " str " )" \n | |
903 | > "case " (read-string "pattern: ") ?: \n | |
904 | > _ \n | |
905 | "breaksw" \n | |
906 | ( "other pattern, %s: " | |
907 | < "case " str ?: \n | |
133693bc | 908 | > _ \n |
ac59aed8 RS |
909 | "breaksw" \n) |
910 | < "default:" \n | |
133693bc | 911 | > _ \n |
ac59aed8 RS |
912 | resume: |
913 | < < "endsw") | |
133693bc KH |
914 | (es) |
915 | (rc "expression: " | |
916 | "switch( " str " ) {" \n | |
917 | > "case " (read-string "pattern: ") \n | |
918 | > _ \n | |
919 | ( "other pattern, %s: " | |
920 | < "case " str \n | |
921 | > _ \n) | |
922 | < "case *" \n | |
923 | > _ \n | |
924 | resume: | |
925 | < < ?}) | |
926 | (sh "expression: " | |
927 | "case " str " in" \n | |
928 | > (read-string "pattern: ") ?\) \n | |
929 | > _ \n | |
930 | ";;" \n | |
931 | ( "other pattern, %s: " | |
932 | < str ?\) \n | |
933 | > _ \n | |
934 | ";;" \n) | |
935 | < "*)" \n | |
936 | > _ \n | |
937 | resume: | |
938 | < < "esac")) | |
939 | ||
940 | ||
941 | ||
942 | (define-skeleton sh-for | |
943 | "Insert a for loop. See `sh-feature'." | |
944 | (csh eval sh-modify sh | |
945 | 1 "foreach " | |
946 | 3 " ( " | |
947 | 5 " )" | |
948 | 15 "end") | |
949 | (es eval sh-modify rc | |
950 | 3 " = ") | |
951 | (rc eval sh-modify sh | |
952 | 1 "for( " | |
953 | 5 " ) {" | |
954 | 15 ?}) | |
ac59aed8 RS |
955 | (sh "Index variable: " |
956 | "for " str " in " _ "; do" \n | |
133693bc KH |
957 | > _ | ?$ & (sh-remember-variable str) \n |
958 | < "done")) | |
ac59aed8 RS |
959 | |
960 | ||
961 | ||
133693bc KH |
962 | (define-skeleton sh-indexed-loop |
963 | "Insert an indexed loop from 1 to n. See `sh-feature'." | |
964 | (bash eval identity posix) | |
ac59aed8 RS |
965 | (csh "Index variable: " |
966 | "@ " str " = 1" \n | |
133693bc KH |
967 | "while( $" str " <= " (read-string "upper limit: ") " )" \n |
968 | > _ ?$ str \n | |
ac59aed8 RS |
969 | "@ " str "++" \n |
970 | < "end") | |
133693bc KH |
971 | (es eval sh-modify rc |
972 | 3 " =") | |
973 | (ksh88 "Index variable: " | |
974 | "integer " str "=0" \n | |
975 | "while (( ( " str " += 1 ) <= " | |
976 | (read-string "upper limit: ") | |
977 | " )); do" \n | |
978 | > _ ?$ (sh-remember-variable str) \n | |
979 | < "done") | |
980 | (posix "Index variable: " | |
981 | str "=1" \n | |
982 | "while [ $" str " -le " | |
983 | (read-string "upper limit: ") | |
984 | " ]; do" \n | |
985 | > _ ?$ str \n | |
986 | str ?= (sh-add (sh-remember-variable str) 1) \n | |
987 | < "done") | |
988 | (rc "Index variable: " | |
989 | "for( " str " in" " `{awk 'BEGIN { for( i=1; i<=" | |
990 | (read-string "upper limit: ") | |
991 | "; i++ ) print i }'}) {" \n | |
992 | > _ ?$ (sh-remember-variable str) \n | |
993 | < ?}) | |
994 | (sh "Index variable: " | |
995 | "for " str " in `awk 'BEGIN { for( i=1; i<=" | |
996 | (read-string "upper limit: ") | |
997 | "; i++ ) print i }'`; do" \n | |
998 | > _ ?$ (sh-remember-variable str) \n | |
999 | < "done")) | |
ac59aed8 RS |
1000 | |
1001 | ||
1002 | (defun sh-add (var delta) | |
133693bc | 1003 | "Insert an addition of VAR and prefix DELTA for Bourne (type) shell." |
ac59aed8 | 1004 | (interactive |
133693bc KH |
1005 | (list (completing-read "Variable: " |
1006 | (mapcar (lambda (var) | |
1007 | (substring var 0 (string-match "=" var))) | |
1008 | process-environment)) | |
ac59aed8 | 1009 | (prefix-numeric-value current-prefix-arg))) |
133693bc KH |
1010 | (insert (sh-feature '((bash . "$[ ") |
1011 | (ksh88 . "$(( ") | |
1012 | (posix . "$(( ") | |
1013 | (rc . "`{expr $") | |
1014 | (sh . "`expr $") | |
1015 | (zsh . "$[ "))) | |
1016 | (sh-remember-variable var) | |
1017 | (if (< delta 0) " - " " + ") | |
1018 | (number-to-string (abs delta)) | |
1019 | (sh-feature '((bash . " ]") | |
1020 | (ksh88 . " ))") | |
1021 | (posix . " ))") | |
1022 | (rc . "}") | |
1023 | (sh . "`") | |
1024 | (zsh . " ]"))))) | |
1025 | ||
1026 | ||
1027 | ||
1028 | (define-skeleton sh-function | |
1029 | "Insert a function definition. See `sh-feature'." | |
1030 | (bash eval sh-modify ksh88 | |
1031 | 3 "() {") | |
1032 | (ksh88 "name: " | |
1033 | "function " str " {" \n | |
1034 | > _ \n | |
1035 | < "}") | |
1036 | (rc eval sh-modify ksh88 | |
1037 | 1 "fn ") | |
ac59aed8 RS |
1038 | (sh () |
1039 | "() {" \n | |
1040 | > _ \n | |
133693bc | 1041 | < "}")) |
ac59aed8 RS |
1042 | |
1043 | ||
1044 | ||
133693bc KH |
1045 | (define-skeleton sh-if |
1046 | "Insert an if statement. See `sh-feature'." | |
ac59aed8 RS |
1047 | (csh "condition: " |
1048 | "if( " str " ) then" \n | |
1049 | > _ \n | |
1050 | ( "other condition, %s: " | |
133693bc KH |
1051 | < "else if( " str " ) then" \n |
1052 | > _ \n) | |
ac59aed8 | 1053 | < "else" \n |
133693bc | 1054 | > _ \n |
ac59aed8 RS |
1055 | resume: |
1056 | < "endif") | |
133693bc KH |
1057 | (es "condition: " |
1058 | "if { " str " } {" \n | |
1059 | > _ \n | |
1060 | ( "other condition, %s: " | |
1061 | < "} { " str " } {" \n | |
1062 | > _ \n) | |
1063 | < "} {" \n | |
1064 | > _ \n | |
1065 | resume: | |
1066 | < ?}) | |
1067 | (rc eval sh-modify csh | |
1068 | 3 " ) {" | |
1069 | 8 '( "other condition, %s: " | |
1070 | < "} else if( " str " ) {" \n | |
1071 | > _ \n) | |
1072 | 10 "} else {" | |
1073 | 17 ?}) | |
1074 | (sh "condition: " | |
1075 | "if [ " str " ]; then" \n | |
1076 | > _ \n | |
1077 | ( "other condition, %s: " | |
1078 | < "elif [ " str " ]; then" \n | |
1079 | > _ \n) | |
1080 | < "else" \n | |
1081 | > _ \n | |
1082 | resume: | |
1083 | < "fi")) | |
ac59aed8 RS |
1084 | |
1085 | ||
1086 | ||
133693bc KH |
1087 | (define-skeleton sh-repeat |
1088 | "Insert a repeat loop definition. See `sh-feature'." | |
1089 | (es nil | |
1090 | "forever {" \n | |
1091 | > _ \n | |
1092 | < ?}) | |
1093 | (zsh "factor: " | |
1094 | "repeat " str "; do"\n | |
1095 | > _ \n | |
1096 | < "done")) | |
1097 | (put 'sh-repeat 'menu-enable '(sh-feature sh-repeat)) | |
1098 | ||
1099 | ||
1100 | ||
1101 | (define-skeleton sh-select | |
1102 | "Insert a select statement. See `sh-feature'." | |
1103 | (ksh88 "Index variable: " | |
1104 | "select " str " in " _ "; do" \n | |
1105 | > ?$ str \n | |
1106 | < "done")) | |
1107 | (put 'sh-select 'menu-enable '(sh-feature sh-select)) | |
1108 | ||
1109 | ||
1110 | ||
1111 | (define-skeleton sh-tmp-file | |
1112 | "Insert code to setup temporary file handling. See `sh-feature'." | |
1113 | (bash eval identity ksh88) | |
1114 | (csh (file-name-nondirectory (buffer-file-name)) | |
1115 | "set tmp = /tmp/" str ".$$" \n | |
1116 | "onintr exit" \n _ | |
1117 | (and (goto-char (point-max)) | |
1118 | (not (bolp)) | |
1119 | ?\n) | |
1120 | "exit:\n" | |
1121 | "rm $tmp* >&/dev/null" >) | |
1122 | (es (file-name-nondirectory (buffer-file-name)) | |
1123 | "local( signals = $signals sighup sigint; tmp = /tmp/" str ".$pid ) {" \n | |
1124 | > "catch @ e {" \n | |
1125 | > "rm $tmp^* >[2]/dev/null" \n | |
1126 | "throw $e" \n | |
1127 | < "} {" \n | |
1128 | > _ \n | |
1129 | < ?} \n | |
1130 | < ?}) | |
1131 | (ksh88 eval sh-modify sh | |
1132 | 6 "EXIT") | |
1133 | (rc (file-name-nondirectory (buffer-file-name)) | |
1134 | "tmp = /tmp/" str ".$pid" \n | |
1135 | "fn sigexit { rm $tmp^* >[2]/dev/null }") | |
1136 | (sh (file-name-nondirectory (buffer-file-name)) | |
1137 | "TMP=/tmp/" str ".$$" \n | |
1138 | "trap \"rm $TMP* 2>/dev/null\" " ?0)) | |
ac59aed8 RS |
1139 | |
1140 | ||
1141 | ||
133693bc KH |
1142 | (define-skeleton sh-until |
1143 | "Insert an until loop. See `sh-feature'." | |
ac59aed8 RS |
1144 | (sh "condition: " |
1145 | "until [ " str " ]; do" \n | |
1146 | > _ \n | |
133693bc KH |
1147 | < "done")) |
1148 | (put 'sh-until 'menu-enable '(sh-feature sh-until)) | |
1149 | ||
1150 | ||
1151 | ||
1152 | (define-skeleton sh-while | |
1153 | "Insert a while loop. See `sh-feature'." | |
1154 | (csh eval sh-modify sh | |
1155 | 1 "while( " | |
1156 | 3 " )" | |
1157 | 9 "end") | |
1158 | (es eval sh-modify rc | |
1159 | 1 "while { " | |
1160 | 3 " } {") | |
1161 | (rc eval sh-modify csh | |
1162 | 3 " ) {" | |
1163 | 9 ?}) | |
ac59aed8 RS |
1164 | (sh "condition: " |
1165 | "while [ " str " ]; do" \n | |
1166 | > _ \n | |
133693bc KH |
1167 | < "done")) |
1168 | ||
1169 | ||
1170 | ||
1171 | (define-skeleton sh-while-getopts | |
1172 | "Insert a while getopts loop. See `sh-feature'. | |
1173 | Prompts for an options string which consists of letters for each recognized | |
1174 | option followed by a colon `:' if the option accepts an argument." | |
1175 | (bash eval sh-modify sh | |
1176 | 18 "${0##*/}") | |
1177 | (ksh88 eval sh-modify sh | |
1178 | 16 "print" | |
1179 | 18 "${0##*/}" | |
1180 | 36 "OPTIND-1") | |
1181 | (posix eval sh-modify sh | |
1182 | 18 "$(basename $0)") | |
1183 | (sh "optstring: " | |
1184 | "while getopts :" str " OPT; do" \n | |
1185 | > "case $OPT in" \n | |
1186 | > > | |
1187 | '(setq v1 (append (vconcat str) nil)) | |
1188 | ( (prog1 (if v1 (char-to-string (car v1))) | |
1189 | (if (eq (nth 1 v1) ?:) | |
1190 | (setq v1 (nthcdr 2 v1) | |
1191 | v2 "\"$OPTARG\"") | |
1192 | (setq v1 (cdr v1) | |
1193 | v2 nil))) | |
1194 | < str "|+" str ?\) \n | |
1195 | > _ v2 \n | |
1196 | ";;" \n) | |
1197 | < "*)" \n | |
1198 | > "echo" " \"usage: " "`basename $0`" | |
1199 | "[ +-" '(setq v1 (point)) str | |
1200 | '(save-excursion | |
1201 | (while (search-backward ":" v1 t) | |
1202 | (replace-match " arg][ +-" t t))) | |
1203 | (if (eq (preceding-char) ?-) -5) | |
1204 | "][ --] args\"" \n | |
1205 | "exit 2" \n | |
1206 | < < "esac" \n | |
1207 | < "done" \n | |
1208 | "shift " (sh-add "OPTIND" -1))) | |
1209 | (put 'sh-while-getopts 'menu-enable '(sh-feature sh-while-getopts)) | |
ac59aed8 RS |
1210 | |
1211 | ||
1212 | ||
1213 | (defun sh-assignment (arg) | |
133693bc | 1214 | "Remember preceding identifier for future completion and do self-insert." |
ac59aed8 | 1215 | (interactive "p") |
133693bc KH |
1216 | (self-insert-command arg) |
1217 | (if (<= arg 1) | |
ac59aed8 RS |
1218 | (sh-remember-variable |
1219 | (save-excursion | |
133693bc KH |
1220 | (if (re-search-forward (sh-feature sh-assignment-regexp) |
1221 | (prog1 (point) | |
1222 | (beginning-of-line 1)) | |
1223 | t) | |
1224 | (buffer-substring (match-beginning 1) (match-end 1))))))) | |
ac59aed8 RS |
1225 | |
1226 | ||
1227 | ||
1228 | (defun sh-maybe-here-document (arg) | |
1229 | "Inserts self. Without prefix, following unquoted `<' inserts here document. | |
1230 | The document is bounded by `sh-here-document-word'." | |
1231 | (interactive "*P") | |
1232 | (self-insert-command (prefix-numeric-value arg)) | |
1233 | (or arg | |
1234 | (not (eq (char-after (- (point) 2)) last-command-char)) | |
1235 | (save-excursion | |
133693bc | 1236 | (backward-char 2) |
ac59aed8 RS |
1237 | (sh-quoted-p)) |
1238 | (progn | |
1239 | (insert sh-here-document-word) | |
133693bc | 1240 | (or (eolp) (looking-at "[ \t]") (insert ? )) |
ac59aed8 | 1241 | (end-of-line 1) |
133693bc KH |
1242 | (while |
1243 | (sh-quoted-p) | |
1244 | (end-of-line 2)) | |
ac59aed8 RS |
1245 | (newline) |
1246 | (save-excursion (insert ?\n sh-here-document-word))))) | |
1247 | ||
1248 | \f | |
1249 | ;; various other commands | |
1250 | ||
133693bc KH |
1251 | (autoload 'comint-dynamic-complete "comint" |
1252 | "Dynamically perform completion at point." t) | |
1253 | ||
1254 | (autoload 'shell-dynamic-complete-command "shell" | |
1255 | "Dynamically complete the command at point." t) | |
1256 | ||
ac59aed8 RS |
1257 | (autoload 'comint-dynamic-complete-filename "comint" |
1258 | "Dynamically complete the filename at point." t) | |
1259 | ||
133693bc KH |
1260 | (autoload 'shell-dynamic-complete-environment-variable "shell" |
1261 | "Dynamically complete the environment variable at point." t) | |
1262 | ||
ac59aed8 RS |
1263 | |
1264 | ||
1265 | (defun sh-newline-and-indent (&optional arg) | |
1266 | "Strip unquoted whitespace, insert newline, and indent like current line. | |
1267 | Unquoted whitespace is stripped from the current line's end, unless a | |
1268 | prefix ARG is given." | |
1269 | (interactive "*P") | |
133693bc | 1270 | (let ((previous (current-indentation))) |
ac59aed8 | 1271 | (if arg () |
133693bc KH |
1272 | (just-one-space) |
1273 | (backward-char) | |
1274 | (if (sh-quoted-p) | |
1275 | (forward-char) | |
1276 | (delete-char 1))) | |
ac59aed8 RS |
1277 | (newline) |
1278 | (indent-to previous))) | |
1279 | ||
1280 | ||
1281 | ||
ac59aed8 RS |
1282 | (defun sh-beginning-of-command () |
1283 | "Move point to successive beginnings of commands." | |
1284 | (interactive) | |
1285 | (if (re-search-backward sh-beginning-of-command nil t) | |
1286 | (goto-char (match-beginning 2)))) | |
1287 | ||
1288 | ||
ac59aed8 RS |
1289 | (defun sh-end-of-command () |
1290 | "Move point to successive ends of commands." | |
1291 | (interactive) | |
1292 | (if (re-search-forward sh-end-of-command nil t) | |
1293 | (goto-char (match-end 1)))) | |
1294 | ||
ac59aed8 | 1295 | ;; sh-script.el ends here |