(viper-smart-suffix-list): Fix customize type.
[bpt/emacs.git] / lisp / emulation / viper-ex.el
CommitLineData
52fa07ba 1;;; viper-ex.el --- functions implementing the Ex commands for Viper
be010748 2
9b70a748 3;; Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
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4
5;; This file is part of GNU Emacs.
6
7;; GNU Emacs is free software; you can redistribute it and/or modify
8;; it under the terms of the GNU General Public License as published by
9;; the Free Software Foundation; either version 2, or (at your option)
10;; any later version.
11
12;; GNU Emacs is distributed in the hope that it will be useful,
13;; but WITHOUT ANY WARRANTY; without even the implied warranty of
14;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15;; GNU General Public License for more details.
16
17;; You should have received a copy of the GNU General Public License
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18;; along with GNU Emacs; see the file COPYING. If not, write to the
19;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20;; Boston, MA 02111-1307, USA.
6c2e12f4 21
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22;; Code
23
9b70a748 24(provide 'viper-ex)
6c2e12f4 25
03fc1246 26;; Compiler pacifier
52fa07ba 27(defvar read-file-name-map)
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28(defvar viper-use-register)
29(defvar viper-s-string)
30(defvar viper-shift-width)
31(defvar viper-ex-history)
32(defvar viper-related-files-and-buffers-ring)
33(defvar viper-local-search-start-marker)
1e70790f 34(defvar viper-expert-level)
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35(defvar viper-custom-file-name)
36(defvar viper-case-fold-search)
e36a387d 37(defvar explicit-shell-file-name)
9b70a748 38
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39;; loading happens only in non-interactive compilation
40;; in order to spare non-viperized emacs from being viperized
41(if noninteractive
42 (eval-when-compile
43 (let ((load-path (cons (expand-file-name ".") load-path)))
44 (or (featurep 'viper-util)
45 (load "viper-util.el" nil nil 'nosuffix))
46 (or (featurep 'viper-keym)
47 (load "viper-keym.el" nil nil 'nosuffix))
48 (or (featurep 'viper-cmd)
49 (load "viper-cmd.el" nil nil 'nosuffix))
50 )))
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51;; end pacifier
52
53(require 'viper-util)
54
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55(defgroup viper-ex nil
56 "Viper support for Ex commands"
57 :prefix "ex-"
58 :group 'viper)
59
60
03fc1246 61
6c2e12f4 62;;; Variables
bbe6126c 63
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64(defconst viper-ex-work-buf-name " *ex-working-space*")
65(defconst viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
66(defconst viper-ex-tmp-buf-name " *ex-tmp*")
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67
68
69;;; Variable completion in :set command
70
71;; The list of Ex commands. Used for completing command names.
72(defconst ex-token-alist
73 '(("!") ("=") (">") ("&") ("~")
74 ("yank") ("xit") ("WWrite") ("Write") ("write") ("wq") ("visual")
75 ("version") ("vglobal") ("unmap") ("undo") ("tag") ("transfer") ("suspend")
76 ("substitute") ("submitReport") ("stop") ("sr") ("source") ("shell")
77 ("set") ("rewind") ("recover") ("read") ("quit") ("pwd")
78 ("put") ("preserve") ("PreviousRelatedFile") ("RelatedFile")
79 ("next") ("Next") ("move") ("mark") ("map") ("kmark") ("join")
80 ("help") ("goto") ("global") ("file") ("edit") ("delete") ("copy")
81 ("chdir") ("cd") ("Buffer") ("buffer") ("args")) )
82
83;; A-list of Ex variables that can be set using the :set command.
84(defconst ex-variable-alist
85 '(("wrapscan") ("ws") ("wrapmargin") ("wm")
e36a387d 86 ("tabstop-global") ("ts-g") ("tabstop") ("ts")
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87 ("showmatch") ("sm") ("shiftwidth") ("sw") ("shell") ("sh")
88 ("readonly") ("ro")
89 ("nowrapscan") ("nows") ("noshowmatch") ("nosm")
90 ("noreadonly") ("noro") ("nomagic") ("noma")
91 ("noignorecase") ("noic")
e36a387d 92 ("noautoindent-global") ("noai-g") ("noautoindent") ("noai")
52fa07ba 93 ("magic") ("ma") ("ignorecase") ("ic")
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94 ("autoindent-global") ("ai-g") ("autoindent") ("ai")
95 ("all")
52fa07ba 96 ))
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bbe6126c 99
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100;; Token recognized during parsing of Ex commands (e.g., "read", "comma")
101(defvar ex-token nil)
102
103;; Type of token.
104;; If non-nil, gives type of address; if nil, it is a command.
105(defvar ex-token-type nil)
106
107;; List of addresses passed to Ex command
108(defvar ex-addresses nil)
109
110;; It seems that this flag is used only for `#', `print', and `list', which
111;; aren't implemented. Check later.
112(defvar ex-flag nil)
113
114;; "buffer" where Ex commands keep deleted data.
115;; In Emacs terms, this is a register.
116(defvar ex-buffer nil)
117
118;; Value of ex count.
119(defvar ex-count nil)
120
1e70790f 121;; Flag indicating that :global Ex command is being executed.
52fa07ba 122(defvar ex-g-flag nil)
1e70790f 123;; Flag indicating that :vglobal Ex command is being executed.
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124(defvar ex-g-variant nil)
125
126;; Save reg-exp used in substitute.
127(defvar ex-reg-exp nil)
128
129
130;; Replace pattern for substitute.
131(defvar ex-repl nil)
132
133;; Pattern for global command.
134(defvar ex-g-pat nil)
135
1e70790f 136(defcustom ex-unix-type-shell
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137 (let ((case-fold-search t))
138 (and (stringp shell-file-name)
139 (string-match
140 (concat
141 "\\("
142 "csh$\\|csh.exe$"
143 "\\|"
144 "ksh$\\|ksh.exe$"
145 "\\|"
146 "^sh$\\|sh.exe$"
147 "\\|"
148 "[^a-z]sh$\\|[^a-z]sh.exe$"
149 "\\|"
150 "bash$\\|bash.exe$"
151 "\\)")
152 shell-file-name)))
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153 "Is the user using a unix-type shell under a non-OS?"
154 :type 'string
155 :group 'viper-ex)
52fa07ba 156
1e70790f 157(defcustom ex-unix-type-shell-options
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158 (let ((case-fold-search t))
159 (if ex-unix-type-shell
160 (cond ((string-match "\\(csh$\\|csh.exe$\\)" shell-file-name)
161 "-f") ; csh: do it fast
162 ((string-match "\\(bash$\\|bash.exe$\\)" shell-file-name)
163 "-noprofile") ; bash: ignore .profile
164 )))
165 "Options to pass to the Unix-style shell.
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166Don't put `-c' here, as it is added automatically."
167 :type 'string
168 :group 'viper-ex)
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169
170(defvar ex-nontrivial-find-file-function
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171 (cond (ex-unix-type-shell 'viper-ex-nontrivial-find-file-unix)
172 ((eq system-type 'emx) 'viper-ex-nontrivial-find-file-ms) ; OS/2
173 (viper-ms-style-os-p 'viper-ex-nontrivial-find-file-ms) ; Microsoft OS
174 (viper-vms-os-p 'viper-ex-nontrivial-find-file-unix) ; VMS
175 (t 'viper-ex-nontrivial-find-file-unix) ; presumably UNIX
52fa07ba 176 ))
bbe6126c 177
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178;; Remembers the previous Ex tag.
179(defvar ex-tag nil)
bbe6126c 180
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181;; file used by Ex commands like :r, :w, :n
182(defvar ex-file nil)
bbe6126c 183
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184;; If t, tells Ex that this is a variant-command, i.e., w>>, r!, etc.
185(defvar ex-variant nil)
bbe6126c 186
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187;; Specified the offset of an Ex command, such as :read.
188(defvar ex-offset nil)
bbe6126c 189
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190;; Tells Ex that this is a w>> command.
191(defvar ex-append nil)
bbe6126c 192
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193;; File containing the shell command to be executed at Ex prompt,
194;; e.g., :r !date
195(defvar ex-cmdfile nil)
bbe6126c 196
8626cfa2 197;; flag used in viper-ex-read-file-name to indicate that we may be reading
52fa07ba 198;; multiple file names. Used for :edit and :next
8626cfa2 199(defvar viper-keep-reading-filename nil)
bbe6126c 200
1e70790f 201(defcustom ex-cycle-other-window t
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202 "*If t, :n and :b cycles through files and buffers in other window.
203Then :N and :B cycles in the current window. If nil, this behavior is
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204reversed."
205 :type 'boolean
206 :group 'viper-ex)
bbe6126c 207
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208(defcustom ex-cycle-through-non-files nil
209 "*Cycle through *scratch* and other buffers that don't visit any file."
210 :type 'boolean
211 :group 'viper-ex)
bbe6126c 212
52fa07ba 213;; Last shell command executed with :! command.
8626cfa2 214(defvar viper-ex-last-shell-com nil)
bbe6126c 215
52fa07ba 216;; Indicates if Minibuffer was exited temporarily in Ex-command.
8626cfa2 217(defvar viper-incomplete-ex-cmd nil)
bbe6126c 218
52fa07ba 219;; Remembers the last ex-command prompt.
8626cfa2 220(defvar viper-last-ex-prompt "")
bbe6126c 221
bbe6126c 222
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223;;; Code
224
225;; Check if ex-token is an initial segment of STR
8626cfa2 226(defun viper-check-sub (str)
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227 (let ((length (length ex-token)))
228 (if (and (<= length (length str))
229 (string= ex-token (substring str 0 length)))
230 (setq ex-token str)
231 (setq ex-token-type 'non-command))))
bbe6126c 232
52fa07ba 233;; Get a complete ex command
8626cfa2 234(defun viper-get-ex-com-subr ()
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235 (let (case-fold-search)
236 (set-mark (point))
237 (re-search-forward "[a-zA-Z][a-zA-Z]*")
238 (setq ex-token-type 'command)
239 (setq ex-token (buffer-substring (point) (mark t)))
240 (exchange-point-and-mark)
241 (cond ((looking-at "a")
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242 (cond ((looking-at "ab") (viper-check-sub "abbreviate"))
243 ((looking-at "ar") (viper-check-sub "args"))
244 (t (viper-check-sub "append"))))
245 ((looking-at "h") (viper-check-sub "help"))
52fa07ba 246 ((looking-at "c")
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247 (cond ((looking-at "cd") (viper-check-sub "cd"))
248 ((looking-at "ch") (viper-check-sub "chdir"))
249 ((looking-at "co") (viper-check-sub "copy"))
250 (t (viper-check-sub "change"))))
251 ((looking-at "d") (viper-check-sub "delete"))
252 ((looking-at "b") (viper-check-sub "buffer"))
253 ((looking-at "B") (viper-check-sub "Buffer"))
52fa07ba 254 ((looking-at "e")
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255 (if (looking-at "ex") (viper-check-sub "ex")
256 (viper-check-sub "edit")))
257 ((looking-at "f") (viper-check-sub "file"))
258 ((looking-at "g") (viper-check-sub "global"))
259 ((looking-at "i") (viper-check-sub "insert"))
260 ((looking-at "j") (viper-check-sub "join"))
261 ((looking-at "l") (viper-check-sub "list"))
52fa07ba 262 ((looking-at "m")
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263 (cond ((looking-at "map") (viper-check-sub "map"))
264 ((looking-at "mar") (viper-check-sub "mark"))
265 (t (viper-check-sub "move"))))
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266 ((looking-at "k[a-z][^a-z]")
267 (setq ex-token "kmark")
268 (forward-char 1)
269 (exchange-point-and-mark)) ; this is canceled out by another
270 ; exchange-point-and-mark at the end
8626cfa2 271 ((looking-at "k") (viper-check-sub "kmark"))
52fa07ba 272 ((looking-at "n") (if (looking-at "nu")
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273 (viper-check-sub "number")
274 (viper-check-sub "next")))
275 ((looking-at "N") (viper-check-sub "Next"))
276 ((looking-at "o") (viper-check-sub "open"))
52fa07ba 277 ((looking-at "p")
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278 (cond ((looking-at "pre") (viper-check-sub "preserve"))
279 ((looking-at "pu") (viper-check-sub "put"))
280 ((looking-at "pw") (viper-check-sub "pwd"))
281 (t (viper-check-sub "print"))))
282 ((looking-at "P") (viper-check-sub "PreviousRelatedFile"))
283 ((looking-at "R") (viper-check-sub "RelatedFile"))
284 ((looking-at "q") (viper-check-sub "quit"))
52fa07ba 285 ((looking-at "r")
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286 (cond ((looking-at "rec") (viper-check-sub "recover"))
287 ((looking-at "rew") (viper-check-sub "rewind"))
288 (t (viper-check-sub "read"))))
52fa07ba 289 ((looking-at "s")
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290 (cond ((looking-at "se") (viper-check-sub "set"))
291 ((looking-at "sh") (viper-check-sub "shell"))
292 ((looking-at "so") (viper-check-sub "source"))
293 ((looking-at "sr") (viper-check-sub "sr"))
294 ((looking-at "st") (viper-check-sub "stop"))
295 ((looking-at "sus") (viper-check-sub "suspend"))
296 ((looking-at "subm") (viper-check-sub "submitReport"))
297 (t (viper-check-sub "substitute"))))
52fa07ba 298 ((looking-at "t")
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299 (if (looking-at "ta") (viper-check-sub "tag")
300 (viper-check-sub "transfer")))
52fa07ba 301 ((looking-at "u")
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302 (cond ((looking-at "una") (viper-check-sub "unabbreviate"))
303 ((looking-at "unm") (viper-check-sub "unmap"))
304 (t (viper-check-sub "undo"))))
52fa07ba 305 ((looking-at "v")
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306 (cond ((looking-at "ve") (viper-check-sub "version"))
307 ((looking-at "vi") (viper-check-sub "visual"))
308 (t (viper-check-sub "vglobal"))))
52fa07ba 309 ((looking-at "w")
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310 (if (looking-at "wq") (viper-check-sub "wq")
311 (viper-check-sub "write")))
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312 ((looking-at "W")
313 (if (looking-at "WW")
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314 (viper-check-sub "WWrite")
315 (viper-check-sub "Write")))
316 ((looking-at "x") (viper-check-sub "xit"))
317 ((looking-at "y") (viper-check-sub "yank"))
318 ((looking-at "z") (viper-check-sub "z")))
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319 (exchange-point-and-mark)
320 ))
bbe6126c 321
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322;; Get an ex-token which is either an address or a command.
323;; A token has a type, \(command, address, end-mark\), and a value
8626cfa2 324(defun viper-get-ex-token ()
52fa07ba 325 (save-window-excursion
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326 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
327 (set-buffer viper-ex-work-buf)
52fa07ba 328 (skip-chars-forward " \t|")
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329 (let ((case-fold-search t))
330 (cond ((looking-at "#")
331 (setq ex-token-type 'command)
332 (setq ex-token (char-to-string (following-char)))
333 (forward-char 1))
334 ((looking-at "[a-z]") (viper-get-ex-com-subr))
335 ((looking-at "\\.")
336 (forward-char 1)
337 (setq ex-token-type 'dot))
338 ((looking-at "[0-9]")
339 (set-mark (point))
340 (re-search-forward "[0-9]*")
341 (setq ex-token-type
342 (cond ((eq ex-token-type 'plus) 'add-number)
343 ((eq ex-token-type 'minus) 'sub-number)
344 (t 'abs-number)))
345 (setq ex-token
346 (string-to-int (buffer-substring (point) (mark t)))))
347 ((looking-at "\\$")
348 (forward-char 1)
349 (setq ex-token-type 'end))
350 ((looking-at "%")
351 (forward-char 1)
352 (setq ex-token-type 'whole))
353 ((looking-at "+")
354 (cond ((or (looking-at "+[-+]") (looking-at "+[\n|]"))
355 (forward-char 1)
356 (insert "1")
357 (backward-char 1)
52fa07ba 358 (setq ex-token-type 'plus))
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359 ((looking-at "+[0-9]")
360 (forward-char 1)
361 (setq ex-token-type 'plus))
362 (t
363 (error viper-BadAddress))))
364 ((looking-at "-")
365 (cond ((or (looking-at "-[-+]") (looking-at "-[\n|]"))
366 (forward-char 1)
367 (insert "1")
368 (backward-char 1)
369 (setq ex-token-type 'minus))
370 ((looking-at "-[0-9]")
371 (forward-char 1)
372 (setq ex-token-type 'minus))
373 (t
374 (error viper-BadAddress))))
375 ((looking-at "/")
376 (forward-char 1)
377 (set-mark (point))
378 (let ((cont t))
379 (while (and (not (eolp)) cont)
380 ;;(re-search-forward "[^/]*/")
381 (re-search-forward "[^/]*\\(/\\|\n\\)")
382 (if (not (viper-looking-back "[^\\\\]\\(\\\\\\\\\\)*\\\\/"))
383 (setq cont nil))))
384 (backward-char 1)
385 (setq ex-token (buffer-substring (point) (mark t)))
386 (if (looking-at "/") (forward-char 1))
387 (setq ex-token-type 'search-forward))
388 ((looking-at "\\?")
389 (forward-char 1)
390 (set-mark (point))
391 (let ((cont t))
392 (while (and (not (eolp)) cont)
393 ;;(re-search-forward "[^\\?]*\\?")
394 (re-search-forward "[^\\?]*\\(\\?\\|\n\\)")
395 (if (not (viper-looking-back "[^\\\\]\\(\\\\\\\\\\)*\\\\\\?"))
396 (setq cont nil))
397 (backward-char 1)
398 (if (not (looking-at "\n")) (forward-char 1))))
399 (setq ex-token-type 'search-backward)
400 (setq ex-token (buffer-substring (1- (point)) (mark t))))
401 ((looking-at ",")
402 (forward-char 1)
403 (setq ex-token-type 'comma))
404 ((looking-at ";")
405 (forward-char 1)
406 (setq ex-token-type 'semi-colon))
407 ((looking-at "[!=><&~]")
408 (setq ex-token-type 'command)
409 (setq ex-token (char-to-string (following-char)))
410 (forward-char 1))
411 ((looking-at "'")
412 (setq ex-token-type 'goto-mark)
413 (forward-char 1)
414 (cond ((looking-at "'") (setq ex-token nil))
415 ((looking-at "[a-z]") (setq ex-token (following-char)))
416 (t (error "Marks are ' and a-z")))
417 (forward-char 1))
418 ((looking-at "\n")
419 (setq ex-token-type 'end-mark)
420 (setq ex-token "goto"))
421 (t
422 (error viper-BadExCommand))))))
bbe6126c 423
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424;; Reads Ex command. Tries to determine if it has to exit because command
425;; is complete or invalid. If not, keeps reading command.
426(defun ex-cmd-read-exit ()
427 (interactive)
8626cfa2 428 (setq viper-incomplete-ex-cmd t)
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429 (let ((quit-regex1 (concat
430 "\\(" "set[ \t]*"
431 "\\|" "edit[ \t]*"
432 "\\|" "[nN]ext[ \t]*"
433 "\\|" "unm[ \t]*"
434 "\\|" "^[ \t]*rep"
435 "\\)"))
436 (quit-regex2 (concat
437 "[a-zA-Z][ \t]*"
438 "\\(" "!" "\\|" ">>"
439 "\\|" "\\+[0-9]+"
440 "\\)"
441 "*[ \t]*$"))
442 (stay-regex (concat
443 "\\(" "^[ \t]*$"
1e70790f 444 "\\|" "[?/].*"
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445 "\\|" "[ktgjmsz][ \t]*$"
446 "\\|" "^[ \t]*ab.*"
447 "\\|" "tr[ansfer \t]*"
448 "\\|" "sr[ \t]*"
449 "\\|" "mo.*"
450 "\\|" "^[ \t]*k?ma[^p]*"
451 "\\|" "^[ \t]*fi.*"
452 "\\|" "v?gl.*"
453 "\\|" "[vg][ \t]*$"
454 "\\|" "jo.*"
455 "\\|" "^[ \t]*ta.*"
456 "\\|" "^[ \t]*una.*"
457 "\\|" "^[ \t]*su.*"
458 "\\|['`][a-z][ \t]*"
459 "\\|" "![ \t]*[a-zA-Z].*"
460 "\\)"
461 "!*")))
462
463 (save-window-excursion ;; put cursor at the end of the Ex working buffer
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464 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
465 (set-buffer viper-ex-work-buf)
52fa07ba 466 (goto-char (point-max)))
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467 (cond ((viper-looking-back quit-regex1) (exit-minibuffer))
468 ((viper-looking-back stay-regex) (insert " "))
469 ((viper-looking-back quit-regex2) (exit-minibuffer))
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470 (t (insert " ")))))
471
472;; complete Ex command
473(defun ex-cmd-complete ()
474 (interactive)
475 (let (save-pos dist compl-list string-to-complete completion-result)
476
477 (save-excursion
478 (setq dist (skip-chars-backward "[a-zA-Z!=>&~]")
479 save-pos (point)))
480
481 (if (or (= dist 0)
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482 (viper-looking-back "\\([ \t]*['`][ \t]*[a-z]*\\)")
483 (viper-looking-back
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484 "^[ \t]*[a-zA-Z!=>&~][ \t]*[/?]*+[ \t]+[a-zA-Z!=>&~]+"))
485 ;; Preceding characters are not the ones allowed in an Ex command
486 ;; or we have typed past command name.
487 ;; Note: we didn't do parsing, so there may be surprises.
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488 (if (or (viper-looking-back "[a-zA-Z!=>&~][ \t]*[/?]*[ \t]*")
489 (viper-looking-back "\\([ \t]*['`][ \t]*[a-z]*\\)")
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490 (looking-at "[^ \t\n\C-m]"))
491 nil
492 (with-output-to-temp-buffer "*Completions*"
493 (display-completion-list
8626cfa2 494 (viper-alist-to-list ex-token-alist))))
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495 ;; Preceding chars may be part of a command name
496 (setq string-to-complete (buffer-substring save-pos (point)))
497 (setq completion-result
498 (try-completion string-to-complete ex-token-alist))
499
500 (cond ((eq completion-result t) ; exact match--do nothing
8626cfa2 501 (viper-tmp-insert-at-eob " (Sole completion)"))
52fa07ba 502 ((eq completion-result nil)
8626cfa2 503 (viper-tmp-insert-at-eob " (No match)"))
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504 (t ;; partial completion
505 (goto-char save-pos)
506 (delete-region (point) (point-max))
507 (insert completion-result)
508 (let (case-fold-search)
509 (setq compl-list
8626cfa2 510 (viper-filter-alist (concat "^" completion-result)
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511 ex-token-alist)))
512 (if (> (length compl-list) 1)
513 (with-output-to-temp-buffer "*Completions*"
514 (display-completion-list
8626cfa2 515 (viper-alist-to-list (reverse compl-list)))))))
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516 )))
517
bbe6126c 518
52fa07ba 519;; Read Ex commands
8626cfa2 520(defun viper-ex (&optional string)
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521 (interactive)
522 (or string
523 (setq ex-g-flag nil
524 ex-g-variant nil))
525 (let* ((map (copy-keymap minibuffer-local-map))
526 (address nil)
527 (cont t)
528 (dot (point))
529 prev-token-type com-str)
530
8626cfa2 531 (viper-add-keymap viper-ex-cmd-map map)
52fa07ba 532
8626cfa2 533 (setq com-str (or string (viper-read-string-with-history
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534 ":"
535 nil
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536 'viper-ex-history
537 (car viper-ex-history)
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538 map)))
539 (save-window-excursion
540 ;; just a precaution
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541 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
542 (set-buffer viper-ex-work-buf)
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543 (delete-region (point-min) (point-max))
544 (insert com-str "\n")
545 (goto-char (point-min)))
546 (setq ex-token-type nil
547 ex-addresses nil)
548 (while cont
8626cfa2 549 (viper-get-ex-token)
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550 (cond ((memq ex-token-type '(command end-mark))
551 (if address (setq ex-addresses (cons address ex-addresses)))
552 (cond ((string= ex-token "global")
553 (ex-global nil)
554 (setq cont nil))
555 ((string= ex-token "vglobal")
556 (ex-global t)
557 (setq cont nil))
558 (t
8626cfa2 559 (viper-execute-ex-command)
52fa07ba 560 (save-window-excursion
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561 (setq viper-ex-work-buf
562 (get-buffer-create viper-ex-work-buf-name))
563 (set-buffer viper-ex-work-buf)
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564 (skip-chars-forward " \t")
565 (cond ((looking-at "|")
566 (forward-char 1))
567 ((looking-at "\n")
568 (setq cont nil))
8626cfa2 569 (t (error "`%s': %s" ex-token viper-SpuriousText)))
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570 ))
571 ))
572 ((eq ex-token-type 'non-command)
8626cfa2 573 (error "`%s': %s" ex-token viper-BadExCommand))
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574 ((eq ex-token-type 'whole)
575 (setq address nil)
576 (setq ex-addresses
577 (if ex-addresses
578 (cons (point-max) ex-addresses)
579 (cons (point-max) (cons (point-min) ex-addresses)))))
580 ((eq ex-token-type 'comma)
581 (if (eq prev-token-type 'whole)
582 (setq address (point-min)))
583 (setq ex-addresses
584 (cons (if (null address) (point) address) ex-addresses)))
585 ((eq ex-token-type 'semi-colon)
586 (if (eq prev-token-type 'whole)
587 (setq address (point-min)))
588 (if address (setq dot address))
589 (setq ex-addresses
590 (cons (if (null address) (point) address) ex-addresses)))
8626cfa2 591 (t (let ((ans (viper-get-ex-address-subr address dot)))
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592 (if ans (setq address ans)))))
593 (setq prev-token-type ex-token-type))))
594
bbe6126c 595
52fa07ba 596;; Get a regular expression and set `ex-variant', if found
8626cfa2 597(defun viper-get-ex-pat ()
52fa07ba 598 (save-window-excursion
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599 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
600 (set-buffer viper-ex-work-buf)
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601 (skip-chars-forward " \t")
602 (if (looking-at "!")
603 (progn
604 (setq ex-g-variant (not ex-g-variant)
605 ex-g-flag (not ex-g-flag))
606 (forward-char 1)
607 (skip-chars-forward " \t")))
608 (let ((c (following-char)))
609 (if (string-match "[0-9A-Za-z]" (format "%c" c))
610 (error
611 "Global regexp must be inside matching non-alphanumeric chars"))
612 (if (looking-at "[^\\\\\n]")
613 (progn
614 (forward-char 1)
615 (set-mark (point))
616 (let ((cont t))
617 (while (and (not (eolp)) cont)
618 (if (not (re-search-forward (format "[^%c]*%c" c c) nil t))
619 (if (member ex-token '("global" "vglobal"))
620 (error
621 "Missing closing delimiter for global regexp")
622 (goto-char (point-max))))
8626cfa2 623 (if (not (viper-looking-back
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624 (format "[^\\\\]\\(\\\\\\\\\\)*\\\\%c" c)))
625 (setq cont nil))))
626 (setq ex-token
627 (if (= (mark t) (point)) ""
628 (buffer-substring (1- (point)) (mark t))))
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629 (backward-char 1)
630 ;; if the user doesn't specify the final pattern delimiter, we're
631 ;; at newline now. In this case, insert the initial delimiter
632 ;; specified in variable c
633 (if (looking-at "\n")
634 (progn
635 (insert c)
636 (backward-char 1)))
637 )
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638 (setq ex-token nil))
639 c)))
bbe6126c 640
52fa07ba 641;; get an ex command
8626cfa2 642(defun viper-get-ex-command ()
52fa07ba 643 (save-window-excursion
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644 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
645 (set-buffer viper-ex-work-buf)
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646 (if (looking-at "/") (forward-char 1))
647 (skip-chars-forward " \t")
648 (cond ((looking-at "[a-z]")
8626cfa2 649 (viper-get-ex-com-subr)
52fa07ba 650 (if (eq ex-token-type 'non-command)
8626cfa2 651 (error "`%s': %s" ex-token viper-BadExCommand)))
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652 ((looking-at "[!=><&~]")
653 (setq ex-token (char-to-string (following-char)))
654 (forward-char 1))
8626cfa2 655 (t (error viper-BadExCommand)))))
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656
657;; Get an Ex option g or c
8626cfa2 658(defun viper-get-ex-opt-gc (c)
52fa07ba 659 (save-window-excursion
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660 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
661 (set-buffer viper-ex-work-buf)
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662 (if (looking-at (format "%c" c)) (forward-char 1))
663 (skip-chars-forward " \t")
664 (cond ((looking-at "g")
665 (setq ex-token "g")
666 (forward-char 1)
667 t)
668 ((looking-at "c")
669 (setq ex-token "c")
670 (forward-char 1)
671 t)
672 (t nil))))
673
674;; Compute default addresses. WHOLE-FLAG means use the whole buffer
8626cfa2 675(defun viper-default-ex-addresses (&optional whole-flag)
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676 (cond ((null ex-addresses)
677 (setq ex-addresses
678 (if whole-flag
679 (cons (point-max) (cons (point-min) nil))
680 (cons (point) (cons (point) nil)))))
681 ((null (cdr ex-addresses))
682 (setq ex-addresses
683 (cons (car ex-addresses) ex-addresses)))))
684
685;; Get an ex-address as a marker and set ex-flag if a flag is found
8626cfa2 686(defun viper-get-ex-address ()
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687 (let ((address (point-marker))
688 (cont t))
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689 (setq ex-token "")
690 (setq ex-flag nil)
691 (while cont
8626cfa2 692 (viper-get-ex-token)
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693 (cond ((eq ex-token-type 'command)
694 (if (member ex-token '("print" "list" "#"))
695 (progn
696 (setq ex-flag t
697 cont nil))
698 (error "Address expected in this Ex command")))
699 ((eq ex-token-type 'end-mark)
700 (setq cont nil))
701 ((eq ex-token-type 'whole)
702 (error "Trailing address expected"))
703 ((eq ex-token-type 'comma)
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704 (error "`%s': %s" ex-token viper-SpuriousText))
705 (t (let ((ans (viper-get-ex-address-subr address (point-marker))))
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706 (if ans (setq address ans))))))
707 address))
708
709;; Returns an address as a point
8626cfa2 710(defun viper-get-ex-address-subr (old-address dot)
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711 (let ((address nil))
712 (if (null old-address) (setq old-address dot))
713 (cond ((eq ex-token-type 'dot)
714 (setq address dot))
715 ((eq ex-token-type 'add-number)
716 (save-excursion
717 (goto-char old-address)
718 (forward-line (if (= old-address 0) (1- ex-token) ex-token))
719 (setq address (point-marker))))
720 ((eq ex-token-type 'sub-number)
721 (save-excursion
722 (goto-char old-address)
723 (forward-line (- ex-token))
724 (setq address (point-marker))))
725 ((eq ex-token-type 'abs-number)
726 (save-excursion
727 (goto-char (point-min))
728 (if (= ex-token 0) (setq address 0)
729 (forward-line (1- ex-token))
730 (setq address (point-marker)))))
731 ((eq ex-token-type 'end)
732 (setq address (point-max-marker)))
733 ((eq ex-token-type 'plus) t) ; do nothing
734 ((eq ex-token-type 'minus) t) ; do nothing
735 ((eq ex-token-type 'search-forward)
736 (save-excursion
737 (ex-search-address t)
738 (setq address (point-marker))))
739 ((eq ex-token-type 'search-backward)
740 (save-excursion
741 (ex-search-address nil)
742 (setq address (point-marker))))
743 ((eq ex-token-type 'goto-mark)
744 (save-excursion
745 (if (null ex-token)
746 (exchange-point-and-mark)
8626cfa2 747 (goto-char (viper-register-to-point
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748 (1+ (- ex-token ?a)) 'enforce-buffer)))
749 (setq address (point-marker)))))
750 address))
751
752
753;; Search pattern and set address
754(defun ex-search-address (forward)
755 (if (string= ex-token "")
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756 (if (null viper-s-string)
757 (error viper-NoPrevSearch)
758 (setq ex-token viper-s-string))
759 (setq viper-s-string ex-token))
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760 (if forward
761 (progn
762 (forward-line 1)
763 (re-search-forward ex-token))
764 (forward-line -1)
765 (re-search-backward ex-token)))
766
767;; Get a buffer name and set `ex-count' and `ex-flag' if found
8626cfa2 768(defun viper-get-ex-buffer ()
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769 (setq ex-buffer nil)
770 (setq ex-count nil)
771 (setq ex-flag nil)
772 (save-window-excursion
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773 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
774 (set-buffer viper-ex-work-buf)
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775 (skip-chars-forward " \t")
776 (if (looking-at "[a-zA-Z]")
777 (progn
778 (setq ex-buffer (following-char))
779 (forward-char 1)
780 (skip-chars-forward " \t")))
781 (if (looking-at "[0-9]")
782 (progn
783 (set-mark (point))
784 (re-search-forward "[0-9][0-9]*")
785 (setq ex-count (string-to-int (buffer-substring (point) (mark t))))
786 (skip-chars-forward " \t")))
787 (if (looking-at "[pl#]")
788 (progn
789 (setq ex-flag t)
790 (forward-char 1)))
791 (if (not (looking-at "[\n|]"))
8626cfa2 792 (error "`%s': %s" ex-token viper-SpuriousText))))
52fa07ba 793
8626cfa2 794(defun viper-get-ex-count ()
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795 (setq ex-variant nil
796 ex-count nil
797 ex-flag nil)
798 (save-window-excursion
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799 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
800 (set-buffer viper-ex-work-buf)
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801 (skip-chars-forward " \t")
802 (if (looking-at "!")
803 (progn
804 (setq ex-variant t)
805 (forward-char 1)))
806 (skip-chars-forward " \t")
807 (if (looking-at "[0-9]")
808 (progn
809 (set-mark (point))
810 (re-search-forward "[0-9][0-9]*")
811 (setq ex-count (string-to-int (buffer-substring (point) (mark t))))
812 (skip-chars-forward " \t")))
813 (if (looking-at "[pl#]")
814 (progn
815 (setq ex-flag t)
816 (forward-char 1)))
817 (if (not (looking-at "[\n|]"))
818 (error "`%s': %s"
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819 (buffer-substring
820 (point-min) (1- (point-max))) viper-BadExCommand))))
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821
822;; Expand \% and \# in ex command
823(defun ex-expand-filsyms (cmd buf)
824 (let (cf pf ret)
825 (save-excursion
826 (set-buffer buf)
827 (setq cf buffer-file-name)
828 (setq pf (ex-next nil t))) ; this finds alternative file name
829 (if (and (null cf) (string-match "[^\\]%\\|\\`%" cmd))
830 (error "No current file to substitute for `%%'"))
831 (if (and (null pf) (string-match "[^\\]#\\|\\`#" cmd))
832 (error "No alternate file to substitute for `#'"))
833 (save-excursion
8626cfa2 834 (set-buffer (get-buffer-create viper-ex-tmp-buf-name))
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835 (erase-buffer)
836 (insert cmd)
837 (goto-char (point-min))
838 (while (re-search-forward "%\\|#" nil t)
839 (let ((data (match-data))
840 (char (buffer-substring (match-beginning 0) (match-end 0))))
8626cfa2 841 (if (viper-looking-back (concat "\\\\" char))
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842 (replace-match char)
843 (store-match-data data)
844 (if (string= char "%")
845 (replace-match cf)
846 (replace-match pf)))))
847 (end-of-line)
848 (setq ret (buffer-substring (point-min) (point)))
849 (message "%s" ret))
850 ret))
851
852;; Get a file name and set ex-variant, `ex-append' and `ex-offset' if found
8626cfa2 853(defun viper-get-ex-file ()
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854 (let (prompt)
855 (setq ex-file nil
856 ex-variant nil
857 ex-append nil
858 ex-offset nil
859 ex-cmdfile nil)
860 (save-excursion
861 (save-window-excursion
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862 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
863 (set-buffer viper-ex-work-buf)
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864 (skip-chars-forward " \t")
865 (if (looking-at "!")
8626cfa2 866 (if (and (not (viper-looking-back "[ \t]"))
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867 ;; read doesn't have a corresponding :r! form, so ! is
868 ;; immediately interpreted as a shell command.
869 (not (string= ex-token "read")))
870 (progn
871 (setq ex-variant t)
872 (forward-char 1)
873 (skip-chars-forward " \t"))
874 (setq ex-cmdfile t)
875 (forward-char 1)
876 (skip-chars-forward " \t")))
877 (if (looking-at ">>")
878 (progn
879 (setq ex-append t
880 ex-variant t)
881 (forward-char 2)
882 (skip-chars-forward " \t")))
883 (if (looking-at "+")
884 (progn
885 (forward-char 1)
886 (set-mark (point))
887 (re-search-forward "[ \t\n]")
888 (backward-char 1)
889 (setq ex-offset (buffer-substring (point) (mark t)))
890 (forward-char 1)
891 (skip-chars-forward " \t")))
892 ;; this takes care of :r, :w, etc., when they get file names
893 ;; from the history list
894 (if (member ex-token '("read" "write" "edit" "visual" "next"))
895 (progn
896 (setq ex-file (buffer-substring (point) (1- (point-max))))
897 (setq ex-file
898 ;; For :e, match multiple non-white strings separated
899 ;; by white. For others, find the first non-white string
900 (if (string-match
901 (if (string= ex-token "edit")
902 "[^ \t\n]+\\([ \t]+[^ \t\n]+\\)*"
903 "[^ \t\n]+")
904 ex-file)
905 (progn
906 ;; if file name comes from history, don't leave
907 ;; minibuffer when the user types space
8626cfa2 908 (setq viper-incomplete-ex-cmd nil)
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909 ;; this must be the last clause in this progn
910 (substring ex-file (match-beginning 0) (match-end 0))
911 )
912 ""))
913 ;; this leaves only the command name in the work area
914 ;; file names are gone
915 (delete-region (point) (1- (point-max)))
916 ))
917 (goto-char (point-max))
918 (skip-chars-backward " \t\n")
919 (setq prompt (buffer-substring (point-min) (point)))
920 ))
921
8626cfa2 922 (setq viper-last-ex-prompt prompt)
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923
924 ;; If we just finished reading command, redisplay prompt
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925 (if viper-incomplete-ex-cmd
926 (setq ex-file (viper-ex-read-file-name (format ":%s " prompt)))
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927 ;; file was typed in-line
928 (setq ex-file (or ex-file "")))
929 ))
bbe6126c 930
bbe6126c 931
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932;; Completes file name or exits minibuffer. If Ex command accepts multiple
933;; file names, arranges to re-enter the minibuffer.
8626cfa2 934(defun viper-complete-filename-or-exit ()
52fa07ba 935 (interactive)
8626cfa2 936 (setq viper-keep-reading-filename t)
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937 ;; don't exit if directory---ex-commands don't
938 (cond ((ex-cmd-accepts-multiple-files-p ex-token) (exit-minibuffer))
939 ;; apparently the argument to an Ex command is
940 ;; supposed to be a shell command
8626cfa2 941 ((viper-looking-back "^[ \t]*!.*")
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942 (setq ex-cmdfile t)
943 (insert " "))
944 (t
945 (setq ex-cmdfile nil)
946 (minibuffer-complete-word))))
bbe6126c 947
8626cfa2 948(defun viper-handle-! ()
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949 (interactive)
950 (if (and (string=
8626cfa2 951 (buffer-string) (viper-abbreviate-file-name default-directory))
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952 (member ex-token '("read" "write")))
953 (erase-buffer))
954 (insert "!"))
955
956(defun ex-cmd-accepts-multiple-files-p (token)
957 (member token '("edit" "next" "Next")))
958
959;; If user doesn't enter anything, then "" is returned, i.e., the
960;; prompt-directory is not returned.
8626cfa2 961(defun viper-ex-read-file-name (prompt)
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962 (let* ((str "")
963 (minibuffer-local-completion-map
964 (copy-keymap minibuffer-local-completion-map))
965 beg end cont val)
966
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967 (viper-add-keymap ex-read-filename-map
968 (if viper-emacs-p
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969 minibuffer-local-completion-map
970 read-file-name-map))
971
8626cfa2 972 (setq cont (setq viper-keep-reading-filename t))
52fa07ba 973 (while cont
8626cfa2 974 (setq viper-keep-reading-filename nil
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975 val (read-file-name (concat prompt str) nil default-directory))
976 (if (string-match " " val)
977 (setq val (concat "\\\"" val "\\\"")))
978 (setq str (concat str (if (equal val "") "" " ")
979 val (if (equal val "") "" " ")))
980
981 ;; Only edit, next, and Next commands accept multiple files.
8626cfa2 982 ;; viper-keep-reading-filename is set in the anonymous function that is
52fa07ba 983 ;; bound to " " in ex-read-filename-map.
8626cfa2 984 (setq cont (and viper-keep-reading-filename
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985 (ex-cmd-accepts-multiple-files-p ex-token)))
986 )
987
988 (setq beg (string-match "[^ \t]" str) ; delete leading blanks
989 end (string-match "[ \t]*$" str)) ; delete trailing blanks
990 (if (member ex-token '("read" "write"))
991 (if (string-match "[\t ]*!" str)
992 ;; this is actually a shell command
993 (progn
994 (setq ex-cmdfile t)
995 (setq beg (1+ beg))
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996 (setq viper-last-ex-prompt
997 (concat viper-last-ex-prompt " !")))))
52fa07ba 998 (substring str (or beg 0) end)))
bbe6126c 999
52fa07ba 1000;; Execute ex command using the value of addresses
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1001(defun viper-execute-ex-command ()
1002 (viper-deactivate-mark)
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1003 (cond ((string= ex-token "args") (ex-args))
1004 ((string= ex-token "copy") (ex-copy nil))
1005 ((string= ex-token "cd") (ex-cd))
1006 ((string= ex-token "chdir") (ex-cd))
1007 ((string= ex-token "delete") (ex-delete))
1008 ((string= ex-token "edit") (ex-edit))
8626cfa2 1009 ((string= ex-token "file") (viper-info-on-file))
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1010 ((string= ex-token "goto") (ex-goto))
1011 ((string= ex-token "help") (ex-help))
1012 ((string= ex-token "join") (ex-line "join"))
1013 ((string= ex-token "kmark") (ex-mark))
1014 ((string= ex-token "mark") (ex-mark))
1015 ((string= ex-token "map") (ex-map))
1016 ((string= ex-token "move") (ex-copy t))
1017 ((string= ex-token "next") (ex-next ex-cycle-other-window))
1018 ((string= ex-token "Next") (ex-next (not ex-cycle-other-window)))
1019 ((string= ex-token "RelatedFile") (ex-next-related-buffer 1))
1020 ((string= ex-token "put") (ex-put))
1021 ((string= ex-token "pwd") (ex-pwd))
1022 ((string= ex-token "preserve") (ex-preserve))
1023 ((string= ex-token "PreviousRelatedFile") (ex-next-related-buffer -1))
1024 ((string= ex-token "quit") (ex-quit))
1025 ((string= ex-token "read") (ex-read))
1026 ((string= ex-token "recover") (ex-recover))
1027 ((string= ex-token "rewind") (ex-rewind))
8626cfa2 1028 ((string= ex-token "submitReport") (viper-submit-report))
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1029 ((string= ex-token "set") (ex-set))
1030 ((string= ex-token "shell") (ex-shell))
1031 ((string= ex-token "source") (ex-source))
1032 ((string= ex-token "sr") (ex-substitute t t))
1033 ((string= ex-token "substitute") (ex-substitute))
1034 ((string= ex-token "suspend") (suspend-emacs))
1035 ((string= ex-token "stop") (suspend-emacs))
1036 ((string= ex-token "transfer") (ex-copy nil))
1037 ((string= ex-token "buffer") (if ex-cycle-other-window
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1038 (viper-switch-to-buffer-other-window)
1039 (viper-switch-to-buffer)))
52fa07ba 1040 ((string= ex-token "Buffer") (if ex-cycle-other-window
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1041 (viper-switch-to-buffer)
1042 (viper-switch-to-buffer-other-window)))
52fa07ba 1043 ((string= ex-token "tag") (ex-tag))
8626cfa2 1044 ((string= ex-token "undo") (viper-undo))
52fa07ba 1045 ((string= ex-token "unmap") (ex-unmap))
8626cfa2 1046 ((string= ex-token "version") (viper-version))
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1047 ((string= ex-token "visual") (ex-edit))
1048 ((string= ex-token "write") (ex-write nil))
1049 ((string= ex-token "Write") (save-some-buffers))
1050 ((string= ex-token "wq") (ex-write t))
1051 ((string= ex-token "WWrite") (save-some-buffers t)) ; don't ask
1052 ((string= ex-token "xit") (ex-write t))
1053 ((string= ex-token "yank") (ex-yank))
1054 ((string= ex-token "!") (ex-command))
1055 ((string= ex-token "=") (ex-line-no))
1056 ((string= ex-token ">") (ex-line "right"))
1057 ((string= ex-token "<") (ex-line "left"))
1058 ((string= ex-token "&") (ex-substitute t))
1059 ((string= ex-token "~") (ex-substitute t t))
1060 ((or (string= ex-token "append")
1061 (string= ex-token "change")
1062 (string= ex-token "insert")
1063 (string= ex-token "open"))
1064 (error "`%s': Obsolete command, not supported by Viper" ex-token))
1065 ((or (string= ex-token "abbreviate")
1066 (string= ex-token "unabbreviate"))
1067 (error
1068 "`%s': Vi abbrevs are obsolete. Use the more powerful Emacs abbrevs"
1069 ex-token))
1070 ((or (string= ex-token "list")
1071 (string= ex-token "print")
1072 (string= ex-token "z")
1073 (string= ex-token "#"))
1074 (error "`%s': Command not implemented in Viper" ex-token))
8626cfa2 1075 (t (error "`%s': %s" ex-token viper-BadExCommand))))
52fa07ba 1076
8626cfa2 1077(defun viper-undisplayed-files ()
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1078 (mapcar
1079 (function
1080 (lambda (b)
1081 (if (null (get-buffer-window b))
1082 (let ((f (buffer-file-name b)))
1083 (if f f
1084 (if ex-cycle-through-non-files
1085 (let ((s (buffer-name b)))
1086 (if (string= " " (substring s 0 1))
1087 nil
1088 s))
1089 nil)))
1090 nil)))
1091 (buffer-list)))
1092
1093
1094(defun ex-args ()
8626cfa2 1095 (let ((l (viper-undisplayed-files))
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1096 (args "")
1097 (file-count 1))
1098 (while (not (null l))
1099 (if (car l)
1100 (setq args (format "%s %d) %s\n" args file-count (car l))
1101 file-count (1+ file-count)))
1102 (setq l (cdr l)))
1103 (if (string= args "")
1104 (message "All files are already displayed")
1105 (save-excursion
1106 (save-window-excursion
8626cfa2 1107 (with-output-to-temp-buffer " *viper-info*"
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1108 (princ "\n\nThese files are not displayed in any window.\n")
1109 (princ "\n=============\n")
1110 (princ args)
1111 (princ "\n=============\n")
1112 (princ "\nThe numbers can be given as counts to :next. ")
1113 (princ "\n\nPress any key to continue...\n\n"))
8626cfa2 1114 (viper-read-event))))))
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1115
1116;; Ex cd command. Default directory of this buffer changes
1117(defun ex-cd ()
8626cfa2 1118 (viper-get-ex-file)
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1119 (if (string= ex-file "")
1120 (setq ex-file "~"))
1121 (setq default-directory (file-name-as-directory (expand-file-name ex-file))))
1122
1123;; Ex copy and move command. DEL-FLAG means delete
1124(defun ex-copy (del-flag)
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1125 (viper-default-ex-addresses)
1126 (let ((address (viper-get-ex-address))
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1127 (end (car ex-addresses)) (beg (car (cdr ex-addresses))))
1128 (goto-char end)
1129 (save-excursion
1130 (push-mark beg t)
8626cfa2 1131 (viper-enlarge-region (mark t) (point))
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1132 (if del-flag
1133 (kill-region (point) (mark t))
1134 (copy-region-as-kill (point) (mark t)))
1135 (if ex-flag
1136 (progn
1137 (with-output-to-temp-buffer "*copy text*"
1138 (princ
1139 (if (or del-flag ex-g-flag ex-g-variant)
1140 (current-kill 0)
1141 (buffer-substring (point) (mark t)))))
1142 (condition-case nil
1143 (progn
1144 (read-string "[Hit return to continue] ")
1145 (save-excursion (kill-buffer "*copy text*")))
1146 (quit (save-excursion (kill-buffer "*copy text*"))
1147 (signal 'quit nil))))))
1148 (if (= address 0)
1149 (goto-char (point-min))
1150 (goto-char address)
1151 (forward-line 1))
1152 (insert (current-kill 0))))
1153
1154;; Ex delete command
1155(defun ex-delete ()
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MK
1156 (viper-default-ex-addresses)
1157 (viper-get-ex-buffer)
52fa07ba 1158 (let ((end (car ex-addresses)) (beg (car (cdr ex-addresses))))
8626cfa2 1159 (if (> beg end) (error viper-FirstAddrExceedsSecond))
52fa07ba 1160 (save-excursion
8626cfa2 1161 (viper-enlarge-region beg end)
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MK
1162 (exchange-point-and-mark)
1163 (if ex-count
1164 (progn
1165 (set-mark (point))
1166 (forward-line (1- ex-count)))
1167 (set-mark end))
8626cfa2 1168 (viper-enlarge-region (point) (mark t))
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MK
1169 (if ex-flag
1170 ;; show text to be deleted and ask for confirmation
1171 (progn
1172 (with-output-to-temp-buffer " *delete text*"
1173 (princ (buffer-substring (point) (mark t))))
1174 (condition-case nil
1175 (read-string "[Hit return to continue] ")
1176 (quit
1177 (save-excursion (kill-buffer " *delete text*"))
1178 (error "")))
1179 (save-excursion (kill-buffer " *delete text*")))
1180 (if ex-buffer
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1181 (cond ((viper-valid-register ex-buffer '(Letter))
1182 (viper-append-to-register
52fa07ba 1183 (downcase ex-buffer) (point) (mark t)))
8626cfa2 1184 ((viper-valid-register ex-buffer)
52fa07ba 1185 (copy-to-register ex-buffer (point) (mark t) nil))
8626cfa2 1186 (t (error viper-InvalidRegister ex-buffer))))
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MK
1187 (kill-region (point) (mark t))))))
1188
1189
1190
1191;; Ex edit command
1192;; In Viper, `e' and `e!' behave identically. In both cases, the user is
1193;; asked if current buffer should really be discarded.
1194;; This command can take multiple file names. It replaces the current buffer
1195;; with the first file in its argument list
1196(defun ex-edit (&optional file)
1197 (if (not file)
8626cfa2 1198 (viper-get-ex-file))
52fa07ba 1199 (cond ((and (string= ex-file "") buffer-file-name)
8626cfa2 1200 (setq ex-file (viper-abbreviate-file-name (buffer-file-name))))
52fa07ba 1201 ((string= ex-file "")
8626cfa2 1202 (error viper-NoFileSpecified)))
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1203
1204 (let (msg do-edit)
1205 (if buffer-file-name
1206 (cond ((buffer-modified-p)
1207 (setq msg
1208 (format "Buffer %s is modified. Discard changes? "
1209 (buffer-name))
1210 do-edit t))
1211 ((not (verify-visited-file-modtime (current-buffer)))
1212 (setq msg
1213 (format "File %s changed on disk. Reread from disk? "
1214 buffer-file-name)
1215 do-edit t))
1216 (t (setq do-edit nil))))
1217
1218 (if do-edit
1219 (if (yes-or-no-p msg)
1220 (progn
1221 (set-buffer-modified-p nil)
1222 (kill-buffer (current-buffer)))
1223 (message "Buffer %s was left intact" (buffer-name))))
1224 ) ; let
1225
1226 (if (null (setq file (get-file-buffer ex-file)))
1227 (progn
1228 (ex-find-file ex-file)
ab124470 1229 (or (eq major-mode 'dired-mode)
8626cfa2 1230 (viper-change-state-to-vi))
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1231 (goto-char (point-min)))
1232 (switch-to-buffer file))
1233 (if ex-offset
1234 (progn
1235 (save-window-excursion
8626cfa2
MK
1236 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
1237 (set-buffer viper-ex-work-buf)
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MK
1238 (delete-region (point-min) (point-max))
1239 (insert ex-offset "\n")
1240 (goto-char (point-min)))
8626cfa2 1241 (goto-char (viper-get-ex-address))
52fa07ba 1242 (beginning-of-line)))
8626cfa2 1243 (ex-fixup-history viper-last-ex-prompt ex-file))
52fa07ba 1244
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1245;; Find-file FILESPEC if it appears to specify a single file.
1246;; Otherwise, assume that FILES{EC is a wildcard.
1247;; In this case, split it into substrings separated by newlines.
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1248;; Each line is assumed to be a file name. find-file's each file thus obtained.
1249(defun ex-find-file (filespec)
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1250 (let ((nonstandard-filename-chars "[^-a-zA-Z0-9_./,~$\\]"))
1251 (cond ((file-exists-p filespec) (find-file filespec))
1252 ((string-match nonstandard-filename-chars filespec)
1253 (funcall ex-nontrivial-find-file-function filespec))
1254 (t (find-file filespec)))
52fa07ba 1255 ))
bbe6126c 1256
6c2e12f4 1257
52fa07ba 1258;; Ex global command
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1259;; This is executed in response to:
1260;; :global "pattern" ex-command
1261;; :vglobal "pattern" ex-command
1262;; :global executes ex-command on all lines matching <pattern>
1263;; :vglobal executes ex-command on all lines that don't match <pattern>
1264;;
1265;; With VARIANT nil, this functions executes :global
1266;; With VARIANT t, executes :vglobal
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MK
1267(defun ex-global (variant)
1268 (let ((gcommand ex-token))
1269 (if (or ex-g-flag ex-g-variant)
1270 (error "`%s' within `global' is not allowed" gcommand)
1271 (if variant
1272 (setq ex-g-flag nil
1273 ex-g-variant t)
1274 (setq ex-g-flag t
1275 ex-g-variant nil)))
8626cfa2 1276 (viper-get-ex-pat)
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MK
1277 (if (null ex-token)
1278 (error "`%s': Missing regular expression" gcommand)))
1279
1280 (if (string= ex-token "")
8626cfa2
MK
1281 (if (null viper-s-string)
1282 (error viper-NoPrevSearch)
1283 (setq ex-g-pat viper-s-string))
52fa07ba 1284 (setq ex-g-pat ex-token
8626cfa2 1285 viper-s-string ex-token))
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MK
1286 (if (null ex-addresses)
1287 (setq ex-addresses (list (point-max) (point-min)))
8626cfa2 1288 (viper-default-ex-addresses))
1e70790f
MK
1289 (let ((marks nil)
1290 (mark-count 0)
1291 (end (car ex-addresses))
1292 (beg (car (cdr ex-addresses)))
1293 com-str)
8626cfa2 1294 (if (> beg end) (error viper-FirstAddrExceedsSecond))
52fa07ba 1295 (save-excursion
8626cfa2 1296 (viper-enlarge-region beg end)
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MK
1297 (exchange-point-and-mark)
1298 (let ((cont t) (limit (point-marker)))
1299 (exchange-point-and-mark)
1300 ;; skip the last line if empty
1301 (beginning-of-line)
8626cfa2 1302 (if (eobp) (viper-backward-char-carefully))
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MK
1303 (while (and cont (not (bobp)) (>= (point) limit))
1304 (beginning-of-line)
1305 (set-mark (point))
1306 (end-of-line)
1307 (let ((found (re-search-backward ex-g-pat (mark t) t)))
1308 (if (or (and ex-g-flag found)
1309 (and ex-g-variant (not found)))
1310 (progn
1311 (end-of-line)
1312 (setq mark-count (1+ mark-count))
1313 (setq marks (cons (point-marker) marks)))))
1314 (beginning-of-line)
1315 (if (bobp) (setq cont nil)
1316 (forward-line -1)
1317 (end-of-line)))))
1318 (save-window-excursion
8626cfa2
MK
1319 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
1320 (set-buffer viper-ex-work-buf)
52fa07ba
MK
1321 (setq com-str (buffer-substring (1+ (point)) (1- (point-max)))))
1322 (while marks
1323 (goto-char (car marks))
8626cfa2 1324 (viper-ex com-str)
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MK
1325 (setq mark-count (1- mark-count))
1326 (setq marks (cdr marks)))))
1327
1328;; Ex goto command
1329(defun ex-goto ()
1330 (if (null ex-addresses)
1331 (setq ex-addresses (cons (point) nil)))
1332 (push-mark (point) t)
1333 (goto-char (car ex-addresses))
1334 (beginning-of-line))
1335
1336;; Ex line commands. COM is join, shift-right or shift-left
1337(defun ex-line (com)
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MK
1338 (viper-default-ex-addresses)
1339 (viper-get-ex-count)
52fa07ba 1340 (let ((end (car ex-addresses)) (beg (car (cdr ex-addresses))) point)
8626cfa2 1341 (if (> beg end) (error viper-FirstAddrExceedsSecond))
52fa07ba 1342 (save-excursion
8626cfa2 1343 (viper-enlarge-region beg end)
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MK
1344 (exchange-point-and-mark)
1345 (if ex-count
1346 (progn
1347 (set-mark (point))
1348 (forward-line ex-count)))
1349 (if ex-flag
1350 ;; show text to be joined and ask for confirmation
1351 (progn
1352 (with-output-to-temp-buffer " *text*"
1353 (princ (buffer-substring (point) (mark t))))
1354 (condition-case nil
1355 (progn
1356 (read-string "[Hit return to continue] ")
1357 (ex-line-subr com (point) (mark t)))
1358 (quit (ding)))
1359 (save-excursion (kill-buffer " *text*")))
1360 (ex-line-subr com (point) (mark t)))
1361 (setq point (point)))
1362 (goto-char (1- point))
1363 (beginning-of-line)))
1364
1365(defun ex-line-subr (com beg end)
1366 (cond ((string= com "join")
1367 (goto-char (min beg end))
1368 (while (and (not (eobp)) (< (point) (max beg end)))
1369 (end-of-line)
1370 (if (and (<= (point) (max beg end)) (not (eobp)))
1371 (progn
1372 (forward-line 1)
1373 (delete-region (point) (1- (point)))
1374 (if (not ex-variant) (fixup-whitespace))))))
1375 ((or (string= com "right") (string= com "left"))
1376 (indent-rigidly
1377 (min beg end) (max beg end)
8626cfa2 1378 (if (string= com "right") viper-shift-width (- viper-shift-width)))
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MK
1379 (goto-char (max beg end))
1380 (end-of-line)
8626cfa2 1381 (viper-forward-char-carefully))))
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MK
1382
1383
1384;; Ex mark command
1385(defun ex-mark ()
1386 (let (char)
1387 (if (null ex-addresses)
1388 (setq ex-addresses
1389 (cons (point) nil)))
1390 (save-window-excursion
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MK
1391 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
1392 (set-buffer viper-ex-work-buf)
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MK
1393 (skip-chars-forward " \t")
1394 (if (looking-at "[a-z]")
1395 (progn
1396 (setq char (following-char))
1397 (forward-char 1)
1398 (skip-chars-forward " \t")
1399 (if (not (looking-at "[\n|]"))
8626cfa2 1400 (error "`%s': %s" ex-token viper-SpuriousText)))
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MK
1401 (error "`%s' requires a following letter" ex-token)))
1402 (save-excursion
1403 (goto-char (car ex-addresses))
1404 (point-to-register (1+ (- char ?a))))))
6c2e12f4 1405
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MK
1406
1407
1408;; Alternate file is the file next to the first one in the buffer ring
1409(defun ex-next (cycle-other-window &optional find-alt-file)
1410 (catch 'ex-edit
1411 (let (count l)
1412 (if (not find-alt-file)
bbe6126c 1413 (progn
8626cfa2 1414 (viper-get-ex-file)
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MK
1415 (if (or (char-or-string-p ex-offset)
1416 (and (not (string= "" ex-file))
1417 (not (string-match "^[0-9]+$" ex-file))))
bbe6126c 1418 (progn
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MK
1419 (ex-edit t)
1420 (throw 'ex-edit nil))
1421 (setq count (string-to-int ex-file))
1422 (if (= count 0) (setq count 1))
1423 (if (< count 0) (error "Usage: `next <count>' (count >= 0)"))))
1424 (setq count 1))
8626cfa2 1425 (setq l (viper-undisplayed-files))
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MK
1426 (while (> count 0)
1427 (while (and (not (null l)) (null (car l)))
1428 (setq l (cdr l)))
1429 (setq count (1- count))
1430 (if (> count 0)
1431 (setq l (cdr l))))
1432 (if find-alt-file (car l)
1433 (progn
1434 (if (and (car l) (get-file-buffer (car l)))
1435 (let* ((w (if cycle-other-window
1436 (get-lru-window) (selected-window)))
1437 (b (window-buffer w)))
1438 (set-window-buffer w (get-file-buffer (car l)))
1439 (bury-buffer b)
1440 ;; this puts "next <count>" in the ex-command history
8626cfa2 1441 (ex-fixup-history viper-last-ex-prompt ex-file))
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MK
1442 (error "Not that many undisplayed files")))))))
1443
1444
1445(defun ex-next-related-buffer (direction &optional no-recursion)
1446
8626cfa2 1447 (viper-ring-rotate1 viper-related-files-and-buffers-ring direction)
52fa07ba
MK
1448
1449 (let ((file-or-buffer-name
8626cfa2
MK
1450 (viper-current-ring-item viper-related-files-and-buffers-ring))
1451 (old-ring viper-related-files-and-buffers-ring)
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MK
1452 (old-win (selected-window))
1453 skip-rest buf wind)
1454
8626cfa2
MK
1455 (or (and (ring-p viper-related-files-and-buffers-ring)
1456 (> (ring-length viper-related-files-and-buffers-ring) 0))
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MK
1457 (error "This buffer has no related files or buffers"))
1458
1459 (or (stringp file-or-buffer-name)
1460 (error
1461 "File and buffer names must be strings, %S" file-or-buffer-name))
1462
1463 (setq buf (cond ((get-buffer file-or-buffer-name))
1464 ((file-exists-p file-or-buffer-name)
1465 (find-file-noselect file-or-buffer-name))
1466 ))
1467
8626cfa2 1468 (if (not (viper-buffer-live-p buf))
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MK
1469 (error "Didn't find buffer %S or file %S"
1470 file-or-buffer-name
8626cfa2 1471 (viper-abbreviate-file-name
52fa07ba
MK
1472 (expand-file-name file-or-buffer-name))))
1473
1474 (if (equal buf (current-buffer))
1475 (or no-recursion
1476 ;; try again
1477 (progn
1478 (setq skip-rest t)
1479 (ex-next-related-buffer direction 'norecursion))))
1480
1481 (if skip-rest
1482 ()
1483 ;; setup buffer
8626cfa2 1484 (if (setq wind (viper-get-visible-buffer-window buf))
52fa07ba 1485 ()
8626cfa2 1486 (setq wind (get-lru-window (if viper-xemacs-p nil 'visible)))
52fa07ba 1487 (set-window-buffer wind buf))
bbe6126c 1488
8626cfa2 1489 (if (viper-window-display-p)
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MK
1490 (progn
1491 (raise-frame (window-frame wind))
1492 (if (equal (window-frame wind) (window-frame old-win))
1493 (save-window-excursion (select-window wind) (sit-for 1))
1494 (select-window wind)))
1495 (save-window-excursion (select-window wind) (sit-for 1)))
1496
1497 (save-excursion
1498 (set-buffer buf)
8626cfa2 1499 (setq viper-related-files-and-buffers-ring old-ring))
bbe6126c 1500
8626cfa2 1501 (setq viper-local-search-start-marker (point-marker))
52fa07ba 1502 )))
bbe6126c 1503
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MK
1504
1505;; Force auto save
1506(defun ex-preserve ()
1507 (message "Autosaving all buffers that need to be saved...")
1508 (do-auto-save t))
1509
1510;; Ex put
1511(defun ex-put ()
1512 (let ((point (if (null ex-addresses) (point) (car ex-addresses))))
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MK
1513 (viper-get-ex-buffer)
1514 (setq viper-use-register ex-buffer)
52fa07ba 1515 (goto-char point)
8626cfa2 1516 (if (bobp) (viper-Put-back 1) (viper-put-back 1))))
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MK
1517
1518;; Ex print working directory
1519(defun ex-pwd ()
1520 (message default-directory))
1521
1522;; Ex quit command
1523(defun ex-quit ()
1524 ;; skip "!", if it is q!. In Viper q!, w!, etc., behave as q, w, etc.
1525 (save-excursion
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MK
1526 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
1527 (set-buffer viper-ex-work-buf)
52fa07ba 1528 (if (looking-at "!") (forward-char 1)))
1e70790f 1529 (if (< viper-expert-level 3)
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MK
1530 (save-buffers-kill-emacs)
1531 (kill-buffer (current-buffer))))
6c2e12f4 1532
6c2e12f4 1533
52fa07ba
MK
1534;; Ex read command
1535(defun ex-read ()
8626cfa2 1536 (viper-get-ex-file)
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MK
1537 (let ((point (if (null ex-addresses) (point) (car ex-addresses)))
1538 command)
1539 (goto-char point)
8626cfa2 1540 (viper-add-newline-at-eob-if-necessary)
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MK
1541 (if (not (or (bobp) (eobp))) (forward-line 1))
1542 (if (and (not ex-variant) (string= ex-file ""))
1543 (progn
1544 (if (null buffer-file-name)
8626cfa2 1545 (error viper-NoFileSpecified))
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MK
1546 (setq ex-file buffer-file-name)))
1547 (if ex-cmdfile
1548 (progn
1549 (setq command (ex-expand-filsyms ex-file (current-buffer)))
1550 (shell-command command t))
1551 (insert-file-contents ex-file)))
8626cfa2 1552 (ex-fixup-history viper-last-ex-prompt ex-file))
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MK
1553
1554;; this function fixes ex-history for some commands like ex-read, ex-edit
1555(defun ex-fixup-history (&rest args)
8626cfa2
MK
1556 (setq viper-ex-history
1557 (cons (mapconcat 'identity args " ") (cdr viper-ex-history))))
52fa07ba
MK
1558
1559
1560;; Ex recover from emacs \#file\#
1561(defun ex-recover ()
8626cfa2 1562 (viper-get-ex-file)
52fa07ba 1563 (if (or ex-append ex-offset)
8626cfa2 1564 (error "`recover': %s" viper-SpuriousText))
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MK
1565 (if (string= ex-file "")
1566 (progn
1567 (if (null buffer-file-name)
1568 (error "This buffer isn't visiting any file"))
1569 (setq ex-file buffer-file-name))
1570 (setq ex-file (expand-file-name ex-file)))
1571 (if (and (not (string= ex-file (buffer-file-name)))
1572 (buffer-modified-p)
1573 (not ex-variant))
1574 (error "No write since last change \(:rec! overrides\)"))
1575 (recover-file ex-file))
1576
1577;; Tell that `rewind' is obsolete and to use `:next count' instead
1578(defun ex-rewind ()
1579 (message
1580 "Use `:n <count>' instead. Counts are obtained from the `:args' command"))
1581
1582
1583;; read variable name for ex-set
1584(defun ex-set-read-variable ()
1585 (let ((minibuffer-local-completion-map
1586 (copy-keymap minibuffer-local-completion-map))
1587 (cursor-in-echo-area t)
1588 str batch)
1589 (define-key
1590 minibuffer-local-completion-map " " 'minibuffer-complete-and-exit)
1591 (define-key minibuffer-local-completion-map "=" 'exit-minibuffer)
8626cfa2 1592 (if (viper-set-unread-command-events
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1593 (ex-get-inline-cmd-args "[ \t]*[a-zA-Z]*[ \t]*" nil "\C-m"))
1594 (progn
1595 (setq batch t)
8626cfa2 1596 (viper-set-unread-command-events ?\C-m)))
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1597 (message ":set <Variable> [= <Value>]")
1598 (or batch (sit-for 2))
1599
1600 (while (string-match "^[ \\t\\n]*$"
1601 (setq str
1602 (completing-read ":set " ex-variable-alist)))
e36a387d 1603 (message ":set <Variable> [= <Value>]")
52fa07ba 1604 ;; if there are unread events, don't wait
8626cfa2 1605 (or (viper-set-unread-command-events "") (sit-for 2))
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1606 ) ; while
1607 str))
1608
1609
1610(defun ex-set ()
1611 (let ((var (ex-set-read-variable))
1612 (val 0)
1613 (set-cmd "setq")
1614 (ask-if-save t)
1615 (auto-cmd-label "; don't touch or else...")
1616 (delete-turn-on-auto-fill-pattern
8626cfa2 1617 "([ \t]*add-hook[ \t]+'viper-insert-state-hooks[ \t]+'turn-on-auto-fill.*)")
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1618 actual-lisp-cmd lisp-cmd-del-pattern
1619 val2 orig-var)
1620 (setq orig-var var)
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1621 (cond ((string= var "all")
1622 (setq ask-if-save nil
1623 set-cmd nil))
1624 ((member var '("ai" "autoindent"))
8626cfa2 1625 (setq var "viper-auto-indent"
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1626 set-cmd "setq"
1627 ask-if-save nil
1628 val "t"))
e36a387d 1629 ((member var '("ai-g" "autoindent-global"))
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1630 (kill-local-variable 'viper-auto-indent)
1631 (setq var "viper-auto-indent"
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1632 set-cmd "setq-default"
1633 val "t"))
1634 ((member var '("noai" "noautoindent"))
8626cfa2 1635 (setq var "viper-auto-indent"
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1636 ask-if-save nil
1637 val "nil"))
e36a387d 1638 ((member var '("noai-g" "noautoindent-global"))
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1639 (kill-local-variable 'viper-auto-indent)
1640 (setq var "viper-auto-indent"
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1641 set-cmd "setq-default"
1642 val "nil"))
1643 ((member var '("ic" "ignorecase"))
8626cfa2 1644 (setq var "viper-case-fold-search"
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1645 val "t"))
1646 ((member var '("noic" "noignorecase"))
8626cfa2 1647 (setq var "viper-case-fold-search"
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1648 val "nil"))
1649 ((member var '("ma" "magic"))
8626cfa2 1650 (setq var "viper-re-search"
52fa07ba 1651 val "t"))
e36a387d 1652 ((member var '("noma" "nomagic"))
8626cfa2 1653 (setq var "viper-re-search"
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1654 val "nil"))
1655 ((member var '("ro" "readonly"))
1656 (setq var "buffer-read-only"
1657 val "t"))
1658 ((member var '("noro" "noreadonly"))
1659 (setq var "buffer-read-only"
1660 val "nil"))
1661 ((member var '("sm" "showmatch"))
1662 (setq var "blink-matching-paren"
1663 val "t"))
1664 ((member var '("nosm" "noshowmatch"))
1665 (setq var "blink-matching-paren"
1666 val "nil"))
1667 ((member var '("ws" "wrapscan"))
8626cfa2 1668 (setq var "viper-search-wrap-around-t"
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1669 val "t"))
1670 ((member var '("nows" "nowrapscan"))
8626cfa2 1671 (setq var "viper-search-wrap-around-t"
52fa07ba 1672 val "nil")))
e36a387d 1673 (if (and set-cmd (eq val 0)) ; value must be set by the user
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1674 (let ((cursor-in-echo-area t))
1675 (message ":set %s = <Value>" var)
1676 ;; if there are unread events, don't wait
8626cfa2 1677 (or (viper-set-unread-command-events "") (sit-for 2))
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1678 (setq val (read-string (format ":set %s = " var)))
1679 (ex-fixup-history "set" orig-var val)
1680
1681 ;; check numerical values
1682 (if (member var
1683 '("sw" "shiftwidth"
1684 "ts" "tabstop"
e36a387d 1685 "ts-g" "tabstop-global"
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1686 "wm" "wrapmargin"))
1687 (condition-case nil
1688 (or (numberp (setq val2 (car (read-from-string val))))
1689 (error "%s: Invalid value, numberp, %S" var val))
1690 (error
1691 (error "%s: Invalid value, numberp, %S" var val))))
1692
1693 (cond
1694 ((member var '("sw" "shiftwidth"))
8626cfa2 1695 (setq var "viper-shift-width"))
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1696 ((member var '("ts" "tabstop"))
1697 ;; make it take effect in curr buff and new bufs
1698 (setq var "tab-width"
1699 set-cmd "setq"
1700 ask-if-save nil))
e36a387d 1701 ((member var '("ts-g" "tabstop-global"))
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1702 (kill-local-variable 'tab-width)
1703 (setq var "tab-width"
1704 set-cmd "setq-default"))
1705 ((member var '("wm" "wrapmargin"))
1706 ;; make it take effect in curr buff and new bufs
1707 (kill-local-variable 'fill-column)
1708 (setq var "fill-column"
1709 val (format "(- (window-width) %s)" val)
1710 set-cmd "setq-default"))
1711 ((member var '("sh" "shell"))
1712 (setq var "explicit-shell-file-name"
1713 val (format "\"%s\"" val)))))
1714 (ex-fixup-history "set" orig-var))
1715
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MK
1716 (if set-cmd
1717 (setq actual-lisp-cmd
1718 (format "\n(%s %s %s) %s" set-cmd var val auto-cmd-label)
1719 lisp-cmd-del-pattern
1720 (format "^\n?[ \t]*([ \t]*%s[ \t]+%s[ \t].*)[ \t]*%s"
1721 set-cmd var auto-cmd-label)))
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1722
1723 (if (and ask-if-save
1724 (y-or-n-p (format "Do you want to save this setting in %s "
8626cfa2 1725 viper-custom-file-name)))
52fa07ba 1726 (progn
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1727 (viper-save-string-in-file
1728 actual-lisp-cmd viper-custom-file-name
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1729 ;; del pattern
1730 lisp-cmd-del-pattern)
1731 (if (string= var "fill-column")
1732 (if (> val2 0)
8626cfa2 1733 (viper-save-string-in-file
52fa07ba 1734 (concat
8626cfa2 1735 "(add-hook 'viper-insert-state-hooks 'turn-on-auto-fill) "
52fa07ba 1736 auto-cmd-label)
8626cfa2 1737 viper-custom-file-name
52fa07ba 1738 delete-turn-on-auto-fill-pattern)
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1739 (viper-save-string-in-file
1740 nil viper-custom-file-name delete-turn-on-auto-fill-pattern)
1741 (viper-save-string-in-file
1742 nil viper-custom-file-name
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1743 ;; del pattern
1744 lisp-cmd-del-pattern)
1745 ))
1746 ))
1747
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1748 (if set-cmd
1749 (message "%s %s %s"
1750 set-cmd var
1751 (if (string-match "^[ \t]*$" val)
1752 (format "%S" val)
1753 val)))
1754 (if actual-lisp-cmd
1755 (eval (car (read-from-string actual-lisp-cmd))))
1756 (if (string= var "fill-column")
1757 (if (> val2 0)
1758 (auto-fill-mode 1)
1759 (auto-fill-mode -1)))
1760 (if (string= var "all") (ex-show-vars))
52fa07ba 1761 ))
6c2e12f4 1762
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1763;; In inline args, skip regex-forw and (optionally) chars-back.
1764;; Optional 3d arg is a string that should replace ' ' to prevent its
1765;; special meaning
1766(defun ex-get-inline-cmd-args (regex-forw &optional chars-back replace-str)
1767 (save-excursion
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1768 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
1769 (set-buffer viper-ex-work-buf)
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1770 (goto-char (point-min))
1771 (re-search-forward regex-forw nil t)
1772 (let ((beg (point))
1773 end)
1774 (goto-char (point-max))
1775 (if chars-back
1776 (skip-chars-backward chars-back)
1777 (skip-chars-backward " \t\n\C-m"))
1778 (setq end (point))
1779 ;; replace SPC with `=' to suppress the special meaning SPC has
1780 ;; in Ex commands
1781 (goto-char beg)
1782 (if replace-str
1783 (while (re-search-forward " +" nil t)
1784 (replace-match replace-str nil t)
8626cfa2 1785 (viper-forward-char-carefully)))
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1786 (goto-char end)
1787 (buffer-substring beg end))))
1788
1789
1790;; Ex shell command
1791(defun ex-shell ()
1792 (shell))
1793
1794;; Viper help. Invokes Info
1795(defun ex-help ()
1796 (condition-case nil
1797 (progn
1798 (pop-to-buffer (get-buffer-create "*info*"))
8626cfa2 1799 (info (if viper-xemacs-p "viper.info" "viper"))
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1800 (message "Type `i' to search for a specific topic"))
1801 (error (beep 1)
8626cfa2 1802 (with-output-to-temp-buffer " *viper-info*"
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1803 (princ (format "
1804The Info file for Viper does not seem to be installed.
1805
1806This file is part of the standard distribution of %sEmacs.
1807Please contact your system administrator. "
8626cfa2 1808 (if viper-xemacs-p "X" "")
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1809 ))))))
1810
8626cfa2 1811;; Ex source command. Loads the file specified as argument or `~/.viper'
52fa07ba 1812(defun ex-source ()
8626cfa2 1813 (viper-get-ex-file)
52fa07ba 1814 (if (string= ex-file "")
8626cfa2 1815 (load viper-custom-file-name)
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1816 (load ex-file)))
1817
1818;; Ex substitute command
8626cfa2 1819;; If REPEAT use previous regexp which is ex-reg-exp or viper-s-string
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1820(defun ex-substitute (&optional repeat r-flag)
1821 (let ((opt-g nil)
1822 (opt-c nil)
1823 (matched-pos nil)
8626cfa2 1824 (case-fold-search viper-case-fold-search)
52fa07ba 1825 delim pat repl)
8626cfa2 1826 (if repeat (setq ex-token nil) (setq delim (viper-get-ex-pat)))
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MK
1827 (if (null ex-token)
1828 (progn
8626cfa2 1829 (setq pat (if r-flag viper-s-string ex-reg-exp))
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MK
1830 (or (stringp pat)
1831 (error "No previous pattern to use in substitution"))
1832 (setq repl ex-repl
1833 delim (string-to-char pat)))
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MK
1834 (setq pat (if (string= ex-token "") viper-s-string ex-token))
1835 (setq viper-s-string pat
52fa07ba 1836 ex-reg-exp pat)
8626cfa2 1837 (setq delim (viper-get-ex-pat))
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MK
1838 (if (null ex-token)
1839 (setq ex-token ""
1840 ex-repl "")
1841 (setq repl ex-token
1842 ex-repl ex-token)))
8626cfa2 1843 (while (viper-get-ex-opt-gc delim)
52fa07ba 1844 (if (string= ex-token "g") (setq opt-g t) (setq opt-c t)))
8626cfa2 1845 (viper-get-ex-count)
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MK
1846 (if ex-count
1847 (save-excursion
1848 (if ex-addresses (goto-char (car ex-addresses)))
1849 (set-mark (point))
1850 (forward-line (1- ex-count))
1851 (setq ex-addresses (cons (point) (cons (mark t) nil))))
1852 (if (null ex-addresses)
1853 (setq ex-addresses (cons (point) (cons (point) nil)))
1854 (if (null (cdr ex-addresses))
1855 (setq ex-addresses (cons (car ex-addresses) ex-addresses)))))
1856 ;(setq G opt-g)
1857 (let ((beg (car ex-addresses))
1858 (end (car (cdr ex-addresses)))
1859 eol-mark)
1860 (save-excursion
8626cfa2 1861 (viper-enlarge-region beg end)
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1862 (let ((limit (save-excursion
1863 (goto-char (max (point) (mark t)))
1864 (point-marker))))
1865 (goto-char (min (point) (mark t)))
1866 (while (< (point) limit)
1867 (end-of-line)
1868 (setq eol-mark (point-marker))
1869 (beginning-of-line)
1870 (if opt-g
1871 (progn
1872 (while (and (not (eolp))
1873 (re-search-forward pat eol-mark t))
1874 (if (or (not opt-c) (y-or-n-p "Replace? "))
1875 (progn
1876 (setq matched-pos (point))
1877 (if (not (stringp repl))
1878 (error "Can't perform Ex substitution: No previous replacement pattern"))
1879 (replace-match repl t))))
1880 (end-of-line)
8626cfa2 1881 (viper-forward-char-carefully))
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MK
1882 (if (null pat)
1883 (error
1884 "Can't repeat Ex substitution: No previous regular expression"))
1885 (if (and (re-search-forward pat eol-mark t)
1886 (or (not opt-c) (y-or-n-p "Replace? ")))
1887 (progn
1888 (setq matched-pos (point))
1889 (if (not (stringp repl))
1890 (error "Can't perform Ex substitution: No previous replacement pattern"))
1891 (replace-match repl t)))
1892 (end-of-line)
8626cfa2 1893 (viper-forward-char-carefully))))))
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1894 (if matched-pos (goto-char matched-pos))
1895 (beginning-of-line)
1896 (if opt-c (message "done"))))
8f2685cb 1897
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1898;; Ex tag command
1899(defun ex-tag ()
1900 (let (tag)
1901 (save-window-excursion
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1902 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
1903 (set-buffer viper-ex-work-buf)
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MK
1904 (skip-chars-forward " \t")
1905 (set-mark (point))
1906 (skip-chars-forward "^ |\t\n")
1907 (setq tag (buffer-substring (mark t) (point))))
1908 (if (not (string= tag "")) (setq ex-tag tag))
8626cfa2 1909 (viper-change-state-to-emacs)
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MK
1910 (condition-case conds
1911 (progn
1912 (if (string= tag "")
1913 (find-tag ex-tag t)
1914 (find-tag-other-window ex-tag))
8626cfa2 1915 (viper-change-state-to-vi))
52fa07ba 1916 (error
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1917 (viper-change-state-to-vi)
1918 (viper-message-conditions conds)))))
bbe6126c 1919
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1920;; Ex write command
1921(defun ex-write (q-flag)
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MK
1922 (viper-default-ex-addresses t)
1923 (viper-get-ex-file)
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MK
1924 (let ((end (car ex-addresses))
1925 (beg (car (cdr ex-addresses)))
1926 (orig-buf (current-buffer))
1927 (orig-buf-file-name (buffer-file-name))
1928 (orig-buf-name (buffer-name))
1929 (buff-changed-p (buffer-modified-p))
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1930 temp-buf writing-same-file region
1931 file-exists writing-whole-file)
8626cfa2 1932 (if (> beg end) (error viper-FirstAddrExceedsSecond))
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1933 (if ex-cmdfile
1934 (progn
8626cfa2 1935 (viper-enlarge-region beg end)
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MK
1936 (shell-command-on-region (point) (mark t) ex-file))
1937 (if (and (string= ex-file "") (not (buffer-file-name)))
1938 (setq ex-file
1939 (read-file-name
1940 (format "Buffer %s isn't visiting any file. File to save in: "
1941 (buffer-name)))))
1942
1943 (setq writing-whole-file (and (= (point-min) beg) (= (point-max) end))
1944 ex-file (if (string= ex-file "")
1945 (buffer-file-name)
1946 (expand-file-name ex-file)))
1947 ;; if ex-file is a directory use the file portion of the buffer file name
1948 (if (and (file-directory-p ex-file)
1949 buffer-file-name
1950 (not (file-directory-p buffer-file-name)))
1951 (setq ex-file
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1952 (concat (file-name-as-directory ex-file)
1953 (file-name-nondirectory buffer-file-name))))
1954
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1955 (setq file-exists (file-exists-p ex-file)
1956 writing-same-file (string= ex-file (buffer-file-name)))
1957
1958 (if (and writing-whole-file writing-same-file)
1959 (if (not (buffer-modified-p))
1960 (message "(No changes need to be saved)")
1961 (save-buffer)
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1962 (save-restriction
1963 (widen)
1964 (ex-write-info file-exists ex-file (point-min) (point-max))
1965 ))
1966 ;; writing some other file or portion of the current file
1967 (cond ((and file-exists
1968 (not writing-same-file)
1969 (not (yes-or-no-p
1970 (format "File %s exists. Overwrite? " ex-file))))
1971 (error "Quit"))
1972 ((and writing-whole-file (not ex-append))
1973 (unwind-protect
1974 (progn
1975 (set-visited-file-name ex-file)
1976 (set-buffer-modified-p t)
1977 (save-buffer))
1978 ;; restore the buffer file name
1979 (set-visited-file-name orig-buf-file-name)
1980 (set-buffer-modified-p buff-changed-p)
1981 ;; If the buffer wasn't visiting a file, restore buffer name.
1982 ;; Name could've been changed by packages such as uniquify.
1983 (or orig-buf-file-name
1984 (progn
1985 (unlock-buffer)
1986 (rename-buffer orig-buf-name))))
1987 (save-restriction
1988 (widen)
1989 (ex-write-info
1990 file-exists ex-file (point-min) (point-max))))
1991 (t ; writing a region
1992 (unwind-protect
1993 (save-excursion
8626cfa2 1994 (viper-enlarge-region beg end)
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1995 (setq region (buffer-substring (point) (mark t)))
1996 ;; create temp buffer for the region
1997 (setq temp-buf (get-buffer-create " *ex-write*"))
1998 (set-buffer temp-buf)
1999 (set-visited-file-name ex-file 'noquerry)
2000 (erase-buffer)
2001 (if (and file-exists ex-append)
2002 (insert-file-contents ex-file))
2003 (goto-char (point-max))
2004 (insert region)
2005 (save-buffer)
2006 (ex-write-info
2007 file-exists ex-file (point-min) (point-max))
2008 ))
2009 (set-buffer temp-buf)
2010 (set-buffer-modified-p nil)
2011 (kill-buffer temp-buf))
52fa07ba 2012 ))
9b70a748 2013 (set-buffer orig-buf)
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2014 ;; this prevents the loss of data if writing part of the buffer
2015 (if (and (buffer-file-name) writing-same-file)
2016 (set-visited-file-modtime))
2017 (or writing-whole-file
2018 (not writing-same-file)
2019 (set-buffer-modified-p t))
2020 (if q-flag
1e70790f 2021 (if (< viper-expert-level 2)
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2022 (save-buffers-kill-emacs)
2023 (kill-buffer (current-buffer))))
2024 )))
2025
bbe6126c 2026
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MK
2027(defun ex-write-info (exists file-name beg end)
2028 (message "`%s'%s %d lines, %d characters"
8626cfa2 2029 (viper-abbreviate-file-name file-name)
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MK
2030 (if exists "" " [New file]")
2031 (count-lines beg (min (1+ end) (point-max)))
2032 (- end beg)))
2033
2034;; Ex yank command
2035(defun ex-yank ()
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MK
2036 (viper-default-ex-addresses)
2037 (viper-get-ex-buffer)
52fa07ba 2038 (let ((end (car ex-addresses)) (beg (car (cdr ex-addresses))))
8626cfa2 2039 (if (> beg end) (error viper-FirstAddrExceedsSecond))
52fa07ba 2040 (save-excursion
8626cfa2 2041 (viper-enlarge-region beg end)
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MK
2042 (exchange-point-and-mark)
2043 (if (or ex-g-flag ex-g-variant)
2044 (error "Can't execute `yank' within `global'"))
2045 (if ex-count
bbe6126c 2046 (progn
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MK
2047 (set-mark (point))
2048 (forward-line (1- ex-count)))
2049 (set-mark end))
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MK
2050 (viper-enlarge-region (point) (mark t))
2051 (if ex-flag (error "`yank': %s" viper-SpuriousText))
52fa07ba 2052 (if ex-buffer
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MK
2053 (cond ((viper-valid-register ex-buffer '(Letter))
2054 (viper-append-to-register
52fa07ba 2055 (downcase ex-buffer) (point) (mark t)))
8626cfa2 2056 ((viper-valid-register ex-buffer)
52fa07ba 2057 (copy-to-register ex-buffer (point) (mark t) nil))
8626cfa2 2058 (t (error viper-InvalidRegister ex-buffer))))
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MK
2059 (copy-region-as-kill (point) (mark t)))))
2060
2061;; Execute shell command
2062(defun ex-command ()
2063 (let (command)
2064 (save-window-excursion
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MK
2065 (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
2066 (set-buffer viper-ex-work-buf)
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MK
2067 (skip-chars-forward " \t")
2068 (setq command (buffer-substring (point) (point-max)))
2069 (end-of-line))
2070 (setq command (ex-expand-filsyms command (current-buffer)))
2071 (if (and (> (length command) 0) (string= "!" (substring command 0 1)))
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MK
2072 (if viper-ex-last-shell-com
2073 (setq command
2074 (concat viper-ex-last-shell-com (substring command 1)))
52fa07ba 2075 (error "No previous shell command")))
8626cfa2 2076 (setq viper-ex-last-shell-com command)
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2077 (if (null ex-addresses)
2078 (shell-command command)
2079 (let ((end (car ex-addresses)) (beg (car (cdr ex-addresses))))
2080 (if (null beg) (setq beg end))
6c2e12f4 2081 (save-excursion
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2082 (goto-char beg)
2083 (set-mark end)
8626cfa2 2084 (viper-enlarge-region (point) (mark t))
52fa07ba
MK
2085 (shell-command-on-region (point) (mark t) command t))
2086 (goto-char beg)))))
2087
2088;; Print line number
2089(defun ex-line-no ()
2090 (message "%d"
2091 (1+ (count-lines
2092 (point-min)
2093 (if (null ex-addresses) (point-max) (car ex-addresses))))))
2094
2095;; Give information on the file visited by the current buffer
8626cfa2 2096(defun viper-info-on-file ()
6c2e12f4 2097 (interactive)
8626cfa2
MK
2098 (let ((pos1 (viper-line-pos 'start))
2099 (pos2 (viper-line-pos 'end))
52fa07ba 2100 lines file info)
8626cfa2 2101 (setq lines (count-lines (point-min) (viper-line-pos 'end))
52fa07ba 2102 file (if (buffer-file-name)
8626cfa2 2103 (concat (viper-abbreviate-file-name (buffer-file-name)) ":")
52fa07ba
MK
2104 (concat (buffer-name) " [Not visiting any file]:"))
2105 info (format "line=%d/%d pos=%d/%d col=%d %s"
2106 (if (= pos1 pos2)
2107 (1+ lines)
2108 lines)
2109 (count-lines (point-min) (point-max))
2110 (point) (1- (point-max))
2111 (1+ (current-column))
2112 (if (buffer-modified-p) "[Modified]" "[Unchanged]")))
2113 (if (< (+ 1 (length info) (length file))
2114 (window-width (minibuffer-window)))
2115 (message (concat file " " info))
2116 (save-window-excursion
8626cfa2 2117 (with-output-to-temp-buffer " *viper-info*"
52fa07ba
MK
2118 (princ (concat "\n"
2119 file "\n\n\t" info
2120 "\n\n\nPress any key to continue...\n\n")))
8626cfa2
MK
2121 (viper-read-event)
2122 (kill-buffer " *viper-info*")))
fad2477b 2123 ))
6c2e12f4 2124
e36a387d
MK
2125;; display all variables set through :set
2126(defun ex-show-vars ()
8626cfa2
MK
2127 (with-output-to-temp-buffer " *viper-info*"
2128 (princ (if viper-auto-indent
e36a387d 2129 "autoindent (local)\n" "noautoindent (local)\n"))
8626cfa2 2130 (princ (if (default-value 'viper-auto-indent)
e36a387d 2131 "autoindent (global) \n" "noautoindent (global) \n"))
8626cfa2
MK
2132 (princ (if viper-case-fold-search "ignorecase\n" "noignorecase\n"))
2133 (princ (if viper-re-search "magic\n" "nomagic\n"))
e36a387d
MK
2134 (princ (if buffer-read-only "readonly\n" "noreadonly\n"))
2135 (princ (if blink-matching-paren "showmatch\n" "noshowmatch\n"))
8626cfa2
MK
2136 (princ (if viper-search-wrap-around-t "wrapscan\n" "nowrapscan\n"))
2137 (princ (format "shiftwidth \t\t= %S\n" viper-shift-width))
e36a387d
MK
2138 (princ (format "tabstop (local) \t= %S\n" tab-width))
2139 (princ (format "tabstop (global) \t= %S\n" (default-value 'tab-width)))
2140 (princ (format "wrapmargin (local) \t= %S\n"
2141 (- (window-width) fill-column)))
2142 (princ (format "wrapmargin (global) \t= %S\n"
2143 (- (window-width) (default-value 'fill-column))))
2144 (princ (format "shell \t\t\t= %S\n" (if (boundp 'explicit-shell-file-name)
2145 explicit-shell-file-name
2146 'none)))
2147 ))
2148
2149
2150
2151
6c2e12f4 2152
52fa07ba 2153;;; viper-ex.el ends here