HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| be010748 RS |
1 | ;;; viper-ex.el --- functions implementing the Ex commands for Viper |
| 2 | ||
| b0a2e3aa | 3 | ;; Copyright (C) 1994, 1995 Free Software Foundation, Inc. |
| 6c2e12f4 KH |
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 | |
| b578f267 EN |
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 KH |
21 | |
| 22 | (require 'viper-util) | |
| 23 | ||
| 24 | ;;; Variables | |
| 25 | ||
| 26 | (defconst vip-ex-work-buf-name " *ex-working-space*") | |
| 27 | (defconst vip-ex-work-buf (get-buffer-create vip-ex-work-buf-name)) | |
| 8f2685cb | 28 | (defconst vip-ex-tmp-buf-name " *ex-tmp*") |
| 6c2e12f4 KH |
29 | |
| 30 | ||
| fad2477b | 31 | ;;; Variable completion in :set command |
| 6c2e12f4 KH |
32 | |
| 33 | ;; The list of Ex commands. Used for completing command names. | |
| 34 | (defconst ex-token-alist | |
| 35 | '(("!") ("=") (">") ("&") ("~") | |
| 36 | ("yank") ("xit") ("WWrite") ("Write") ("write") ("wq") ("visual") | |
| 37 | ("version") ("vglobal") ("unmap") ("undo") ("tag") ("transfer") ("suspend") | |
| 38 | ("substitute") ("submitReport") ("stop") ("sr") ("source") ("shell") | |
| 39 | ("set") ("rewind") ("recover") ("read") ("quit") ("pwd") | |
| 40 | ("put") ("preserve") ("PreviousRelatedFile") ("RelatedFile") | |
| 41 | ("next") ("Next") ("move") ("mark") ("map") ("kmark") ("join") | |
| 42 | ("help") ("goto") ("global") ("file") ("edit") ("delete") ("copy") | |
| 43 | ("chdir") ("cd") ("Buffer") ("buffer") ("args")) ) | |
| 44 | ||
| 45 | ;; A-list of Ex variables that can be set using the :set command. | |
| 46 | (defconst ex-variable-alist | |
| 47 | '(("wrapscan") ("ws") ("wrapmargin") ("wm") | |
| 48 | ("tab-stop-local") ("tsl") ("tabstop") ("ts") | |
| 49 | ("showmatch") ("sm") ("shiftwidth") ("sw") ("shell") ("sh") | |
| 50 | ("readonly") ("ro") | |
| 51 | ("nowrapscan") ("nows") ("noshowmatch") ("nosm") | |
| 52 | ("noreadonly") ("noro") ("nomagic") ("noma") | |
| 53 | ("noignorecase") ("noic") ("noautoindent") ("noai") | |
| 54 | ("magic") ("ma") ("ignorecase") ("ic") ("autoindent") ("ai") | |
| 55 | )) | |
| 56 | ||
| 57 | ||
| 58 | ||
| 59 | ;; Token recognized during parsing of Ex commands (e.g., "read", "comma") | |
| 60 | (defvar ex-token nil) | |
| 61 | ||
| 62 | ;; Type of token. | |
| 63 | ;; If non-nil, gives type of address; if nil, it is a command. | |
| 64 | (defvar ex-token-type nil) | |
| 65 | ||
| 66 | ;; List of addresses passed to Ex command | |
| 67 | (defvar ex-addresses nil) | |
| 68 | ||
| 69 | ;; It seems that this flag is used only for `#', `print', and `list', which | |
| 70 | ;; aren't implemented. Check later. | |
| 71 | (defvar ex-flag nil) | |
| 72 | ||
| 73 | ;; "buffer" where Ex commands keep deleted data. | |
| 74 | ;; In Emacs terms, this is a register. | |
| 75 | (defvar ex-buffer nil) | |
| 76 | ||
| 77 | ;; Value of ex count. | |
| 78 | (defvar ex-count nil) | |
| 79 | ||
| 80 | ;; Flag for global command. | |
| 81 | (defvar ex-g-flag nil) | |
| 82 | ||
| 83 | ;; If t, global command is executed on lines not matching ex-g-pat. | |
| 84 | (defvar ex-g-variant nil) | |
| 85 | ||
| 86 | ;; Save reg-exp used in substitute. | |
| 87 | (defvar ex-reg-exp nil) | |
| 88 | ||
| 89 | ||
| 90 | ;; Replace pattern for substitute. | |
| 91 | (defvar ex-repl nil) | |
| 92 | ||
| 93 | ;; Pattern for global command. | |
| 94 | (defvar ex-g-pat nil) | |
| 95 | ||
| 96 | ;; `sh' doesn't seem to expand wildcards, like `*' | |
| 97 | (defconst ex-find-file-shell "csh" | |
| 8f2685cb KH |
98 | "Shell in which to interpret wildcards. Must be csh, tcsh, or similar. |
| 99 | Bourne shell doesn't seem to work here.") | |
| 6c2e12f4 KH |
100 | (defvar ex-find-file-shell-options "-f" |
| 101 | "*Options to pass to `ex-find-file-shell'.") | |
| 102 | ||
| 103 | ;; Remembers the previous Ex tag. | |
| 104 | (defvar ex-tag nil) | |
| 105 | ||
| 106 | ;; file used by Ex commands like :r, :w, :n | |
| 107 | (defvar ex-file nil) | |
| 108 | ||
| 109 | ;; If t, tells Ex that this is a variant-command, i.e., w>>, r!, etc. | |
| 110 | (defvar ex-variant nil) | |
| 111 | ||
| 112 | ;; Specified the offset of an Ex command, such as :read. | |
| 113 | (defvar ex-offset nil) | |
| 114 | ||
| 115 | ;; Tells Ex that this is a w>> command. | |
| 116 | (defvar ex-append nil) | |
| 117 | ||
| 118 | ;; File containing the shell command to be executed at Ex prompt, | |
| 119 | ;; e.g., :r !date | |
| 120 | (defvar ex-cmdfile nil) | |
| 121 | ||
| 122 | ;; flag used in vip-ex-read-file-name to indicate that we may be reading | |
| 123 | ;; multiple file names. Used for :edit and :next | |
| 124 | (defvar vip-keep-reading-filename nil) | |
| 125 | ||
| 126 | (defconst ex-cycle-other-window t | |
| 127 | "*If t, :n and :b cycles through files and buffers in other window. | |
| 128 | Then :N and :B cycles in the current window. If nil, this behavior is | |
| 129 | reversed.") | |
| 130 | ||
| 131 | (defconst ex-cycle-through-non-files nil | |
| 132 | "*Cycle through *scratch* and other buffers that don't visit any file.") | |
| 133 | ||
| 134 | ;; Last shell command executed with :! command. | |
| 135 | (defvar vip-ex-last-shell-com nil) | |
| 136 | ||
| 137 | ;; Indicates if Minibuffer was exited temporarily in Ex-command. | |
| 138 | (defvar vip-incomplete-ex-cmd nil) | |
| 139 | ||
| 140 | ;; Remembers the last ex-command prompt. | |
| 141 | (defvar vip-last-ex-prompt "") | |
| 142 | ||
| 143 | ||
| 144 | ;;; Code | |
| 145 | ||
| 8f2685cb | 146 | ;; Check if ex-token is an initial segment of STR |
| 6c2e12f4 | 147 | (defun vip-check-sub (str) |
| 6c2e12f4 KH |
148 | (let ((length (length ex-token))) |
| 149 | (if (and (<= length (length str)) | |
| 150 | (string= ex-token (substring str 0 length))) | |
| 151 | (setq ex-token str) | |
| 152 | (setq ex-token-type 'non-command)))) | |
| 153 | ||
| 8f2685cb | 154 | ;; Get a complete ex command |
| 6c2e12f4 | 155 | (defun vip-get-ex-com-subr () |
| 6c2e12f4 KH |
156 | (let (case-fold-search) |
| 157 | (set-mark (point)) | |
| 158 | (re-search-forward "[a-zA-Z][a-zA-Z]*") | |
| 159 | (setq ex-token-type 'command) | |
| 160 | (setq ex-token (buffer-substring (point) (mark t))) | |
| 161 | (exchange-point-and-mark) | |
| 162 | (cond ((looking-at "a") | |
| 163 | (cond ((looking-at "ab") (vip-check-sub "abbreviate")) | |
| 164 | ((looking-at "ar") (vip-check-sub "args")) | |
| 165 | (t (vip-check-sub "append")))) | |
| 166 | ((looking-at "h") (vip-check-sub "help")) | |
| 167 | ((looking-at "c") | |
| 168 | (cond ((looking-at "cd") (vip-check-sub "cd")) | |
| 169 | ((looking-at "ch") (vip-check-sub "chdir")) | |
| 170 | ((looking-at "co") (vip-check-sub "copy")) | |
| 171 | (t (vip-check-sub "change")))) | |
| 172 | ((looking-at "d") (vip-check-sub "delete")) | |
| 173 | ((looking-at "b") (vip-check-sub "buffer")) | |
| 174 | ((looking-at "B") (vip-check-sub "Buffer")) | |
| 175 | ((looking-at "e") | |
| 176 | (if (looking-at "ex") (vip-check-sub "ex") | |
| 177 | (vip-check-sub "edit"))) | |
| 178 | ((looking-at "f") (vip-check-sub "file")) | |
| 179 | ((looking-at "g") (vip-check-sub "global")) | |
| 180 | ((looking-at "i") (vip-check-sub "insert")) | |
| 181 | ((looking-at "j") (vip-check-sub "join")) | |
| 182 | ((looking-at "l") (vip-check-sub "list")) | |
| 183 | ((looking-at "m") | |
| 184 | (cond ((looking-at "map") (vip-check-sub "map")) | |
| 185 | ((looking-at "mar") (vip-check-sub "mark")) | |
| 186 | (t (vip-check-sub "move")))) | |
| 187 | ((looking-at "k[a-z][^a-z]") | |
| 188 | (setq ex-token "kmark") | |
| 189 | (forward-char 1) | |
| fad2477b KH |
190 | (exchange-point-and-mark)) ; this is canceled out by another |
| 191 | ; exchange-point-and-mark at the end | |
| 6c2e12f4 KH |
192 | ((looking-at "k") (vip-check-sub "kmark")) |
| 193 | ((looking-at "n") (if (looking-at "nu") | |
| 194 | (vip-check-sub "number") | |
| 195 | (vip-check-sub "next"))) | |
| 196 | ((looking-at "N") (vip-check-sub "Next")) | |
| 197 | ((looking-at "o") (vip-check-sub "open")) | |
| 198 | ((looking-at "p") | |
| 199 | (cond ((looking-at "pre") (vip-check-sub "preserve")) | |
| 200 | ((looking-at "pu") (vip-check-sub "put")) | |
| 201 | ((looking-at "pw") (vip-check-sub "pwd")) | |
| 202 | (t (vip-check-sub "print")))) | |
| 203 | ((looking-at "P") (vip-check-sub "PreviousRelatedFile")) | |
| 204 | ((looking-at "R") (vip-check-sub "RelatedFile")) | |
| 205 | ((looking-at "q") (vip-check-sub "quit")) | |
| 206 | ((looking-at "r") | |
| 207 | (cond ((looking-at "rec") (vip-check-sub "recover")) | |
| 208 | ((looking-at "rew") (vip-check-sub "rewind")) | |
| 209 | (t (vip-check-sub "read")))) | |
| 210 | ((looking-at "s") | |
| 211 | (cond ((looking-at "se") (vip-check-sub "set")) | |
| 212 | ((looking-at "sh") (vip-check-sub "shell")) | |
| 213 | ((looking-at "so") (vip-check-sub "source")) | |
| 214 | ((looking-at "sr") (vip-check-sub "sr")) | |
| 215 | ((looking-at "st") (vip-check-sub "stop")) | |
| 216 | ((looking-at "sus") (vip-check-sub "suspend")) | |
| 217 | ((looking-at "subm") (vip-check-sub "submitReport")) | |
| 218 | (t (vip-check-sub "substitute")))) | |
| 219 | ((looking-at "t") | |
| 220 | (if (looking-at "ta") (vip-check-sub "tag") | |
| 221 | (vip-check-sub "transfer"))) | |
| 222 | ((looking-at "u") | |
| 223 | (cond ((looking-at "una") (vip-check-sub "unabbreviate")) | |
| 224 | ((looking-at "unm") (vip-check-sub "unmap")) | |
| 225 | (t (vip-check-sub "undo")))) | |
| 226 | ((looking-at "v") | |
| 227 | (cond ((looking-at "ve") (vip-check-sub "version")) | |
| 228 | ((looking-at "vi") (vip-check-sub "visual")) | |
| 229 | (t (vip-check-sub "vglobal")))) | |
| 230 | ((looking-at "w") | |
| 231 | (if (looking-at "wq") (vip-check-sub "wq") | |
| 232 | (vip-check-sub "write"))) | |
| 233 | ((looking-at "W") | |
| 234 | (if (looking-at "WW") | |
| 235 | (vip-check-sub "WWrite") | |
| 236 | (vip-check-sub "Write"))) | |
| 237 | ((looking-at "x") (vip-check-sub "xit")) | |
| 238 | ((looking-at "y") (vip-check-sub "yank")) | |
| 239 | ((looking-at "z") (vip-check-sub "z"))) | |
| 240 | (exchange-point-and-mark) | |
| 241 | )) | |
| 242 | ||
| 8f2685cb KH |
243 | ;; Get an ex-token which is either an address or a command. |
| 244 | ;; A token has a type, \(command, address, end-mark\), and a value | |
| 6c2e12f4 | 245 | (defun vip-get-ex-token () |
| 6c2e12f4 KH |
246 | (save-window-excursion |
| 247 | (set-buffer vip-ex-work-buf) | |
| 248 | (skip-chars-forward " \t|") | |
| 249 | (cond ((looking-at "#") | |
| 250 | (setq ex-token-type 'command) | |
| 251 | (setq ex-token (char-to-string (following-char))) | |
| 252 | (forward-char 1)) | |
| 253 | ((looking-at "[a-z]") (vip-get-ex-com-subr)) | |
| 254 | ((looking-at "\\.") | |
| 255 | (forward-char 1) | |
| 256 | (setq ex-token-type 'dot)) | |
| 257 | ((looking-at "[0-9]") | |
| 258 | (set-mark (point)) | |
| 259 | (re-search-forward "[0-9]*") | |
| 260 | (setq ex-token-type | |
| 261 | (cond ((eq ex-token-type 'plus) 'add-number) | |
| 262 | ((eq ex-token-type 'minus) 'sub-number) | |
| 263 | (t 'abs-number))) | |
| 264 | (setq ex-token (string-to-int (buffer-substring (point) (mark t))))) | |
| 265 | ((looking-at "\\$") | |
| 266 | (forward-char 1) | |
| 267 | (setq ex-token-type 'end)) | |
| 268 | ((looking-at "%") | |
| 269 | (forward-char 1) | |
| 270 | (setq ex-token-type 'whole)) | |
| 271 | ((looking-at "+") | |
| 272 | (cond ((or (looking-at "+[-+]") (looking-at "+[\n|]")) | |
| 273 | (forward-char 1) | |
| 274 | (insert "1") | |
| 275 | (backward-char 1) | |
| 276 | (setq ex-token-type 'plus)) | |
| 277 | ((looking-at "+[0-9]") | |
| 278 | (forward-char 1) | |
| 279 | (setq ex-token-type 'plus)) | |
| 280 | (t | |
| 281 | (error vip-BadAddress)))) | |
| 282 | ((looking-at "-") | |
| 283 | (cond ((or (looking-at "-[-+]") (looking-at "-[\n|]")) | |
| 284 | (forward-char 1) | |
| 285 | (insert "1") | |
| 286 | (backward-char 1) | |
| 287 | (setq ex-token-type 'minus)) | |
| 288 | ((looking-at "-[0-9]") | |
| 289 | (forward-char 1) | |
| 290 | (setq ex-token-type 'minus)) | |
| 291 | (t | |
| 292 | (error vip-BadAddress)))) | |
| 293 | ((looking-at "/") | |
| 294 | (forward-char 1) | |
| 295 | (set-mark (point)) | |
| 296 | (let ((cont t)) | |
| 297 | (while (and (not (eolp)) cont) | |
| 298 | ;;(re-search-forward "[^/]*/") | |
| 299 | (re-search-forward "[^/]*\\(/\\|\n\\)") | |
| 300 | (if (not (vip-looking-back "[^\\\\]\\(\\\\\\\\\\)*\\\\/")) | |
| 301 | (setq cont nil)))) | |
| 302 | (backward-char 1) | |
| 303 | (setq ex-token (buffer-substring (point) (mark t))) | |
| 304 | (if (looking-at "/") (forward-char 1)) | |
| 305 | (setq ex-token-type 'search-forward)) | |
| 306 | ((looking-at "\\?") | |
| 307 | (forward-char 1) | |
| 308 | (set-mark (point)) | |
| 309 | (let ((cont t)) | |
| 310 | (while (and (not (eolp)) cont) | |
| 311 | ;;(re-search-forward "[^\\?]*\\?") | |
| 312 | (re-search-forward "[^\\?]*\\(\\?\\|\n\\)") | |
| 313 | (if (not (vip-looking-back "[^\\\\]\\(\\\\\\\\\\)*\\\\\\?")) | |
| 314 | (setq cont nil)) | |
| 315 | (backward-char 1) | |
| 316 | (if (not (looking-at "\n")) (forward-char 1)))) | |
| 317 | (setq ex-token-type 'search-backward) | |
| 318 | (setq ex-token (buffer-substring (1- (point)) (mark t)))) | |
| 319 | ((looking-at ",") | |
| 320 | (forward-char 1) | |
| 321 | (setq ex-token-type 'comma)) | |
| 322 | ((looking-at ";") | |
| 323 | (forward-char 1) | |
| 324 | (setq ex-token-type 'semi-colon)) | |
| 325 | ((looking-at "[!=><&~]") | |
| 326 | (setq ex-token-type 'command) | |
| 327 | (setq ex-token (char-to-string (following-char))) | |
| 328 | (forward-char 1)) | |
| 329 | ((looking-at "'") | |
| 330 | (setq ex-token-type 'goto-mark) | |
| 331 | (forward-char 1) | |
| 332 | (cond ((looking-at "'") (setq ex-token nil)) | |
| 333 | ((looking-at "[a-z]") (setq ex-token (following-char))) | |
| 334 | (t (error "Marks are ' and a-z"))) | |
| 335 | (forward-char 1)) | |
| 336 | ((looking-at "\n") | |
| 337 | (setq ex-token-type 'end-mark) | |
| 338 | (setq ex-token "goto")) | |
| 339 | (t | |
| 340 | (error vip-BadExCommand))))) | |
| 341 | ||
| 342 | ;; Reads Ex command. Tries to determine if it has to exit because command | |
| 343 | ;; is complete or invalid. If not, keeps reading command. | |
| 344 | (defun ex-cmd-read-exit () | |
| 345 | (interactive) | |
| 346 | (setq vip-incomplete-ex-cmd t) | |
| 347 | (let ((quit-regex1 (concat | |
| 348 | "\\(" | |
| 349 | "set[ \t]*" "\\|" "edit[ \t]*" "\\|" "[nN]ext[ \t]*" | |
| 350 | "\\|" "unm[ \t]*" "\\|" "^[ \t]*rep" | |
| 351 | "\\)")) | |
| 352 | (quit-regex2 (concat | |
| 353 | "[a-zA-Z][ \t]*" | |
| 354 | "\\(" "!" "\\|" ">>" | |
| 355 | "\\|" "\\+[0-9]+" | |
| 356 | "\\)" | |
| 357 | "*[ \t]*$")) | |
| 358 | (stay-regex (concat | |
| 359 | "\\(" | |
| 360 | "^[ \t]*$" "\\|" "[ktgjmsz][ \t]*$" "\\|" "^[ \t]*ab.*" | |
| 361 | "\\|" "tr[ansfer \t]*" "\\|" "sr[ \t]*" | |
| 362 | "\\|" "mo.*" "\\|" "^[ \t]*k?ma[^p]*" | |
| 363 | "\\|" "^[ \t]*fi.*" "\\|" "v?gl.*" "\\|" "[vg][ \t]*$" | |
| 364 | "\\|" "jo.*" "\\|" "^[ \t]*ta.*" "\\|" "^[ \t]*una.*" | |
| 365 | "\\|" "^[ \t]*su.*" "\\|['`][a-z][ \t]*" | |
| 366 | "\\|" "![ \t]*[a-zA-Z].*" | |
| 367 | "\\)" | |
| 368 | "!*"))) | |
| 369 | ||
| 370 | (save-window-excursion ;; put cursor at the end of the Ex working buffer | |
| 371 | (set-buffer vip-ex-work-buf) | |
| 372 | (goto-char (point-max))) | |
| 373 | (cond ((vip-looking-back quit-regex1) (exit-minibuffer)) | |
| 374 | ((vip-looking-back stay-regex) (insert " ")) | |
| 375 | ((vip-looking-back quit-regex2) (exit-minibuffer)) | |
| 376 | (t (insert " "))))) | |
| 377 | ||
| 378 | ;; complete Ex command | |
| 379 | (defun ex-cmd-complete () | |
| 380 | (interactive) | |
| 381 | (let (save-pos dist compl-list string-to-complete completion-result) | |
| 382 | ||
| 383 | (save-excursion | |
| 384 | (setq dist (skip-chars-backward "[a-zA-Z!=>&~]") | |
| 385 | save-pos (point))) | |
| 386 | ||
| 387 | (if (or (= dist 0) | |
| 388 | (vip-looking-back "\\([ \t]*['`][ \t]*[a-z]*\\)") | |
| 389 | (vip-looking-back | |
| 390 | "^[ \t]*[a-zA-Z!=>&~][ \t]*[/?]*+[ \t]+[a-zA-Z!=>&~]+")) | |
| 391 | ;; Preceding characters are not the ones allowed in an Ex command | |
| 392 | ;; or we have typed past command name. | |
| 393 | ;; Note: we didn't do parsing, so there may be surprises. | |
| 394 | (if (or (vip-looking-back "[a-zA-Z!=>&~][ \t]*[/?]*[ \t]*") | |
| 395 | (vip-looking-back "\\([ \t]*['`][ \t]*[a-z]*\\)") | |
| 396 | (looking-at "[^ \t\n\C-m]")) | |
| 397 | nil | |
| 398 | (with-output-to-temp-buffer "*Completions*" | |
| 399 | (display-completion-list | |
| 400 | (vip-alist-to-list ex-token-alist)))) | |
| 401 | ;; Preceding chars may be part of a command name | |
| 402 | (setq string-to-complete (buffer-substring save-pos (point))) | |
| 403 | (setq completion-result | |
| 404 | (try-completion string-to-complete ex-token-alist)) | |
| 405 | ||
| fad2477b | 406 | (cond ((eq completion-result t) ; exact match--do nothing |
| 6c2e12f4 KH |
407 | (vip-tmp-insert-at-eob " (Sole completion)")) |
| 408 | ((eq completion-result nil) | |
| 409 | (vip-tmp-insert-at-eob " (No match)")) | |
| 410 | (t ;; partial completion | |
| 411 | (goto-char save-pos) | |
| 412 | (delete-region (point) (point-max)) | |
| 413 | (insert completion-result) | |
| 414 | (let (case-fold-search) | |
| 415 | (setq compl-list | |
| 416 | (vip-filter-alist (concat "^" completion-result) | |
| 417 | ex-token-alist))) | |
| 418 | (if (> (length compl-list) 1) | |
| 419 | (with-output-to-temp-buffer "*Completions*" | |
| 420 | (display-completion-list | |
| 421 | (vip-alist-to-list (reverse compl-list))))))) | |
| 422 | ))) | |
| 423 | ||
| 8f2685cb KH |
424 | |
| 425 | ;; Read Ex commands | |
| 426 | ;; Ex commands themselves are implemented in viper-ex.el | |
| 6c2e12f4 | 427 | (defun vip-ex (&optional string) |
| 6c2e12f4 KH |
428 | (interactive) |
| 429 | (or string | |
| 430 | (setq ex-g-flag nil | |
| 431 | ex-g-variant nil)) | |
| 432 | (let* ((map (copy-keymap minibuffer-local-map)) | |
| 433 | (address nil) | |
| 434 | (cont t) | |
| 435 | (dot (point)) | |
| 8f2685cb | 436 | prev-token-type com-str) |
| 6c2e12f4 KH |
437 | |
| 438 | (vip-add-keymap vip-ex-cmd-map map) | |
| 439 | ||
| 440 | (setq com-str (or string (vip-read-string-with-history | |
| 441 | ":" | |
| 442 | nil | |
| 443 | 'vip-ex-history | |
| 444 | (car vip-ex-history) | |
| 445 | map))) | |
| 446 | (save-window-excursion | |
| 447 | ;; just a precaution | |
| 448 | (or (vip-buffer-live-p vip-ex-work-buf) | |
| 449 | (setq vip-ex-work-buf (get-buffer-create vip-ex-work-buf-name))) | |
| 450 | (set-buffer vip-ex-work-buf) | |
| 451 | (delete-region (point-min) (point-max)) | |
| 452 | (insert com-str "\n") | |
| 453 | (goto-char (point-min))) | |
| 454 | (setq ex-token-type nil | |
| 455 | ex-addresses nil) | |
| 456 | (while cont | |
| 457 | (vip-get-ex-token) | |
| 458 | (cond ((memq ex-token-type '(command end-mark)) | |
| 459 | (if address (setq ex-addresses (cons address ex-addresses))) | |
| 460 | (cond ((string= ex-token "global") | |
| 461 | (ex-global nil) | |
| 462 | (setq cont nil)) | |
| 463 | ((string= ex-token "vglobal") | |
| 464 | (ex-global t) | |
| 465 | (setq cont nil)) | |
| 466 | (t | |
| 467 | (vip-execute-ex-command) | |
| 468 | (save-window-excursion | |
| 469 | (set-buffer vip-ex-work-buf) | |
| 470 | (skip-chars-forward " \t") | |
| 471 | (cond ((looking-at "|") | |
| 472 | (forward-char 1)) | |
| 473 | ((looking-at "\n") | |
| 474 | (setq cont nil)) | |
| 475 | (t (error "`%s': %s" ex-token vip-SpuriousText))) | |
| 476 | )) | |
| 477 | )) | |
| 478 | ((eq ex-token-type 'non-command) | |
| 479 | (error (format "`%s': %s" ex-token vip-BadExCommand))) | |
| 480 | ((eq ex-token-type 'whole) | |
| 8f2685cb | 481 | (setq address nil) |
| 6c2e12f4 | 482 | (setq ex-addresses |
| 8f2685cb KH |
483 | (if ex-addresses |
| 484 | (cons (point-max) ex-addresses) | |
| 485 | (cons (point-max) (cons (point-min) ex-addresses))))) | |
| 6c2e12f4 | 486 | ((eq ex-token-type 'comma) |
| 8f2685cb KH |
487 | (if (eq prev-token-type 'whole) |
| 488 | (setq address (point-min))) | |
| 6c2e12f4 KH |
489 | (setq ex-addresses |
| 490 | (cons (if (null address) (point) address) ex-addresses))) | |
| 491 | ((eq ex-token-type 'semi-colon) | |
| 8f2685cb KH |
492 | (if (eq prev-token-type 'whole) |
| 493 | (setq address (point-min))) | |
| 6c2e12f4 KH |
494 | (if address (setq dot address)) |
| 495 | (setq ex-addresses | |
| 496 | (cons (if (null address) (point) address) ex-addresses))) | |
| 497 | (t (let ((ans (vip-get-ex-address-subr address dot))) | |
| 8f2685cb KH |
498 | (if ans (setq address ans))))) |
| 499 | (setq prev-token-type ex-token-type)))) | |
| 500 | ||
| 6c2e12f4 | 501 | |
| 8f2685cb | 502 | ;; Get a regular expression and set `ex-variant', if found |
| 6c2e12f4 | 503 | (defun vip-get-ex-pat () |
| 6c2e12f4 KH |
504 | (save-window-excursion |
| 505 | (set-buffer vip-ex-work-buf) | |
| 506 | (skip-chars-forward " \t") | |
| 507 | (if (looking-at "!") | |
| 508 | (progn | |
| 509 | (setq ex-g-variant (not ex-g-variant) | |
| 510 | ex-g-flag (not ex-g-flag)) | |
| 511 | (forward-char 1) | |
| 512 | (skip-chars-forward " \t"))) | |
| 513 | (let ((c (following-char))) | |
| 514 | (if (string-match "[0-9A-Za-z]" (format "%c" c)) | |
| 515 | (error | |
| 516 | "Global regexp must be inside matching non-alphanumeric chars")) | |
| 517 | (if (looking-at "[^\\\\\n]") | |
| 518 | (progn | |
| 519 | (forward-char 1) | |
| 520 | (set-mark (point)) | |
| 521 | (let ((cont t)) | |
| 522 | (while (and (not (eolp)) cont) | |
| 523 | (if (not (re-search-forward (format "[^%c]*%c" c c) nil t)) | |
| 524 | (if (member ex-token '("global" "vglobal")) | |
| 525 | (error | |
| 526 | "Missing closing delimiter for global regexp") | |
| 527 | (goto-char (point-max)))) | |
| 528 | (if (not (vip-looking-back | |
| 529 | (format "[^\\\\]\\(\\\\\\\\\\)*\\\\%c" c))) | |
| 530 | (setq cont nil)))) | |
| 531 | (setq ex-token | |
| 532 | (if (= (mark t) (point)) "" | |
| 533 | (buffer-substring (1- (point)) (mark t)))) | |
| 534 | (backward-char 1)) | |
| 535 | (setq ex-token nil)) | |
| 536 | c))) | |
| 537 | ||
| 8f2685cb | 538 | ;; get an ex command |
| 6c2e12f4 | 539 | (defun vip-get-ex-command () |
| 6c2e12f4 KH |
540 | (save-window-excursion |
| 541 | (set-buffer vip-ex-work-buf) | |
| 542 | (if (looking-at "/") (forward-char 1)) | |
| 543 | (skip-chars-forward " \t") | |
| 544 | (cond ((looking-at "[a-z]") | |
| 545 | (vip-get-ex-com-subr) | |
| 546 | (if (eq ex-token-type 'non-command) | |
| 547 | (error "`%s': %s" ex-token vip-BadExCommand))) | |
| 548 | ((looking-at "[!=><&~]") | |
| 549 | (setq ex-token (char-to-string (following-char))) | |
| 550 | (forward-char 1)) | |
| 551 | (t (error vip-BadExCommand))))) | |
| 552 | ||
| 8f2685cb | 553 | ;; Get an Ex option g or c |
| 6c2e12f4 | 554 | (defun vip-get-ex-opt-gc (c) |
| 6c2e12f4 KH |
555 | (save-window-excursion |
| 556 | (set-buffer vip-ex-work-buf) | |
| 557 | (if (looking-at (format "%c" c)) (forward-char 1)) | |
| 558 | (skip-chars-forward " \t") | |
| 559 | (cond ((looking-at "g") | |
| 560 | (setq ex-token "g") | |
| 561 | (forward-char 1) | |
| 562 | t) | |
| 563 | ((looking-at "c") | |
| 564 | (setq ex-token "c") | |
| 565 | (forward-char 1) | |
| 566 | t) | |
| 567 | (t nil)))) | |
| 568 | ||
| 8f2685cb | 569 | ;; Compute default addresses. WHOLE-FLAG means use the whole buffer |
| 6c2e12f4 | 570 | (defun vip-default-ex-addresses (&optional whole-flag) |
| 6c2e12f4 KH |
571 | (cond ((null ex-addresses) |
| 572 | (setq ex-addresses | |
| 573 | (if whole-flag | |
| 574 | (cons (point-max) (cons (point-min) nil)) | |
| 575 | (cons (point) (cons (point) nil))))) | |
| 576 | ((null (cdr ex-addresses)) | |
| 577 | (setq ex-addresses | |
| 578 | (cons (car ex-addresses) ex-addresses))))) | |
| 579 | ||
| 8f2685cb | 580 | ;; Get an ex-address as a marker and set ex-flag if a flag is found |
| 6c2e12f4 | 581 | (defun vip-get-ex-address () |
| 6c2e12f4 KH |
582 | (let ((address (point-marker)) (cont t)) |
| 583 | (setq ex-token "") | |
| 584 | (setq ex-flag nil) | |
| 585 | (while cont | |
| 586 | (vip-get-ex-token) | |
| 587 | (cond ((eq ex-token-type 'command) | |
| 588 | (if (member ex-token '("print" "list" "#")) | |
| 589 | (progn | |
| 590 | (setq ex-flag t | |
| 591 | cont nil)) | |
| 592 | (error "Address expected in this Ex command"))) | |
| 593 | ((eq ex-token-type 'end-mark) | |
| 594 | (setq cont nil)) | |
| 595 | ((eq ex-token-type 'whole) | |
| 596 | (error "Trailing address expected")) | |
| 597 | ((eq ex-token-type 'comma) | |
| 598 | (error "`%s': %s" ex-token vip-SpuriousText)) | |
| 599 | (t (let ((ans (vip-get-ex-address-subr address (point-marker)))) | |
| 600 | (if ans (setq address ans)))))) | |
| 601 | address)) | |
| 602 | ||
| 8f2685cb | 603 | ;; Returns an address as a point |
| 6c2e12f4 | 604 | (defun vip-get-ex-address-subr (old-address dot) |
| 6c2e12f4 KH |
605 | (let ((address nil)) |
| 606 | (if (null old-address) (setq old-address dot)) | |
| 607 | (cond ((eq ex-token-type 'dot) | |
| 608 | (setq address dot)) | |
| 609 | ((eq ex-token-type 'add-number) | |
| 610 | (save-excursion | |
| 611 | (goto-char old-address) | |
| 612 | (forward-line (if (= old-address 0) (1- ex-token) ex-token)) | |
| 613 | (setq address (point-marker)))) | |
| 614 | ((eq ex-token-type 'sub-number) | |
| 615 | (save-excursion | |
| 616 | (goto-char old-address) | |
| 617 | (forward-line (- ex-token)) | |
| 618 | (setq address (point-marker)))) | |
| 619 | ((eq ex-token-type 'abs-number) | |
| 620 | (save-excursion | |
| 621 | (goto-char (point-min)) | |
| 622 | (if (= ex-token 0) (setq address 0) | |
| 623 | (forward-line (1- ex-token)) | |
| 624 | (setq address (point-marker))))) | |
| 625 | ((eq ex-token-type 'end) | |
| 626 | (setq address (point-max-marker))) | |
| fad2477b KH |
627 | ((eq ex-token-type 'plus) t) ; do nothing |
| 628 | ((eq ex-token-type 'minus) t) ; do nothing | |
| 6c2e12f4 KH |
629 | ((eq ex-token-type 'search-forward) |
| 630 | (save-excursion | |
| 631 | (ex-search-address t) | |
| 632 | (setq address (point-marker)))) | |
| 633 | ((eq ex-token-type 'search-backward) | |
| 634 | (save-excursion | |
| 635 | (ex-search-address nil) | |
| 636 | (setq address (point-marker)))) | |
| 637 | ((eq ex-token-type 'goto-mark) | |
| 638 | (save-excursion | |
| 639 | (if (null ex-token) | |
| 640 | (exchange-point-and-mark) | |
| 641 | (goto-char (vip-register-to-point | |
| 642 | (1+ (- ex-token ?a)) 'enforce-buffer))) | |
| 643 | (setq address (point-marker))))) | |
| 644 | address)) | |
| 645 | ||
| 646 | ||
| 8f2685cb | 647 | ;; Search pattern and set address |
| 6c2e12f4 | 648 | (defun ex-search-address (forward) |
| 6c2e12f4 KH |
649 | (if (string= ex-token "") |
| 650 | (if (null vip-s-string) | |
| 651 | (error vip-NoPrevSearch) | |
| 652 | (setq ex-token vip-s-string)) | |
| 653 | (setq vip-s-string ex-token)) | |
| 654 | (if forward | |
| 655 | (progn | |
| 656 | (forward-line 1) | |
| 657 | (re-search-forward ex-token)) | |
| 658 | (forward-line -1) | |
| 659 | (re-search-backward ex-token))) | |
| 660 | ||
| 8f2685cb | 661 | ;; Get a buffer name and set `ex-count' and `ex-flag' if found |
| 6c2e12f4 | 662 | (defun vip-get-ex-buffer () |
| 6c2e12f4 KH |
663 | (setq ex-buffer nil) |
| 664 | (setq ex-count nil) | |
| 665 | (setq ex-flag nil) | |
| 666 | (save-window-excursion | |
| 667 | (set-buffer vip-ex-work-buf) | |
| 668 | (skip-chars-forward " \t") | |
| 669 | (if (looking-at "[a-zA-Z]") | |
| 670 | (progn | |
| 671 | (setq ex-buffer (following-char)) | |
| 672 | (forward-char 1) | |
| 673 | (skip-chars-forward " \t"))) | |
| 674 | (if (looking-at "[0-9]") | |
| 675 | (progn | |
| 676 | (set-mark (point)) | |
| 677 | (re-search-forward "[0-9][0-9]*") | |
| 678 | (setq ex-count (string-to-int (buffer-substring (point) (mark t)))) | |
| 679 | (skip-chars-forward " \t"))) | |
| 680 | (if (looking-at "[pl#]") | |
| 681 | (progn | |
| 682 | (setq ex-flag t) | |
| 683 | (forward-char 1))) | |
| 684 | (if (not (looking-at "[\n|]")) | |
| 685 | (error "`%s': %s" ex-token vip-SpuriousText)))) | |
| 686 | ||
| 687 | (defun vip-get-ex-count () | |
| 688 | (setq ex-variant nil | |
| 689 | ex-count nil | |
| 690 | ex-flag nil) | |
| 691 | (save-window-excursion | |
| 692 | (set-buffer vip-ex-work-buf) | |
| 693 | (skip-chars-forward " \t") | |
| 694 | (if (looking-at "!") | |
| 695 | (progn | |
| 696 | (setq ex-variant t) | |
| 697 | (forward-char 1))) | |
| 698 | (skip-chars-forward " \t") | |
| 699 | (if (looking-at "[0-9]") | |
| 700 | (progn | |
| 701 | (set-mark (point)) | |
| 702 | (re-search-forward "[0-9][0-9]*") | |
| 703 | (setq ex-count (string-to-int (buffer-substring (point) (mark t)))) | |
| 704 | (skip-chars-forward " \t"))) | |
| 705 | (if (looking-at "[pl#]") | |
| 706 | (progn | |
| 707 | (setq ex-flag t) | |
| 708 | (forward-char 1))) | |
| 709 | (if (not (looking-at "[\n|]")) | |
| 710 | (error "`%s': %s" | |
| 711 | (buffer-substring (point-min) (1- (point-max))) vip-BadExCommand)))) | |
| 712 | ||
| 8f2685cb | 713 | ;; Expand \% and \# in ex command |
| 6c2e12f4 | 714 | (defun ex-expand-filsyms (cmd buf) |
| 6c2e12f4 KH |
715 | (let (cf pf ret) |
| 716 | (save-excursion | |
| 717 | (set-buffer buf) | |
| 718 | (setq cf buffer-file-name) | |
| fad2477b | 719 | (setq pf (ex-next nil t))) ; this finds alternative file name |
| 6c2e12f4 KH |
720 | (if (and (null cf) (string-match "[^\\]%\\|\\`%" cmd)) |
| 721 | (error "No current file to substitute for `\%'")) | |
| 722 | (if (and (null pf) (string-match "[^\\]#\\|\\`#" cmd)) | |
| 723 | (error "No alternate file to substitute for `#'")) | |
| 724 | (save-excursion | |
| 8f2685cb | 725 | (set-buffer (get-buffer-create vip-ex-tmp-buf-name)) |
| fad2477b | 726 | (erase-buffer) |
| 6c2e12f4 KH |
727 | (insert cmd) |
| 728 | (goto-char (point-min)) | |
| 729 | (while (re-search-forward "%\\|#" nil t) | |
| 730 | (let ((data (match-data)) | |
| 731 | (char (buffer-substring (match-beginning 0) (match-end 0)))) | |
| 732 | (if (vip-looking-back (concat "\\\\" char)) | |
| 733 | (replace-match char) | |
| 734 | (store-match-data data) | |
| 735 | (if (string= char "%") | |
| 736 | (replace-match cf) | |
| 737 | (replace-match pf))))) | |
| 738 | (end-of-line) | |
| 739 | (setq ret (buffer-substring (point-min) (point))) | |
| 6c2e12f4 KH |
740 | (message "%s" ret)) |
| 741 | ret)) | |
| 742 | ||
| 8f2685cb | 743 | ;; Get a file name and set ex-variant, `ex-append' and `ex-offset' if found |
| 6c2e12f4 | 744 | (defun vip-get-ex-file () |
| 6c2e12f4 KH |
745 | (let (prompt) |
| 746 | (setq ex-file nil | |
| 747 | ex-variant nil | |
| 748 | ex-append nil | |
| 749 | ex-offset nil | |
| 750 | ex-cmdfile nil) | |
| 751 | (save-excursion | |
| 752 | (save-window-excursion | |
| 753 | (set-buffer vip-ex-work-buf) | |
| 754 | (skip-chars-forward " \t") | |
| 755 | (if (looking-at "!") | |
| c6b52c46 MK |
756 | (if (and (not (vip-looking-back "[ \t]")) |
| 757 | ;; read doesn't have a corresponding :r! form, so ! is | |
| 758 | ;; immediately interpreted as a shell command. | |
| 759 | (not (string= ex-token "read"))) | |
| 6c2e12f4 KH |
760 | (progn |
| 761 | (setq ex-variant t) | |
| 762 | (forward-char 1) | |
| 763 | (skip-chars-forward " \t")) | |
| 764 | (setq ex-cmdfile t) | |
| 765 | (forward-char 1) | |
| 766 | (skip-chars-forward " \t"))) | |
| 767 | (if (looking-at ">>") | |
| 768 | (progn | |
| 769 | (setq ex-append t | |
| 770 | ex-variant t) | |
| 771 | (forward-char 2) | |
| 772 | (skip-chars-forward " \t"))) | |
| 773 | (if (looking-at "+") | |
| 774 | (progn | |
| 775 | (forward-char 1) | |
| 776 | (set-mark (point)) | |
| 777 | (re-search-forward "[ \t\n]") | |
| 778 | (backward-char 1) | |
| 779 | (setq ex-offset (buffer-substring (point) (mark t))) | |
| 780 | (forward-char 1) | |
| 781 | (skip-chars-forward " \t"))) | |
| 782 | ;; this takes care of :r, :w, etc., when they get file names | |
| 783 | ;; from the history list | |
| fad2477b | 784 | (if (member ex-token '("read" "write" "edit" "visual" "next")) |
| 6c2e12f4 KH |
785 | (progn |
| 786 | (setq ex-file (buffer-substring (point) (1- (point-max)))) | |
| 787 | (setq ex-file | |
| 788 | ;; For :e, match multiple non-white strings separated | |
| 789 | ;; by white. For others, find the first non-white string | |
| 790 | (if (string-match | |
| 791 | (if (string= ex-token "edit") | |
| 792 | "[^ \t\n]+\\([ \t]+[^ \t\n]+\\)*" | |
| 793 | "[^ \t\n]+") | |
| 794 | ex-file) | |
| 795 | (progn | |
| 796 | ;; if file name comes from history, don't leave | |
| 797 | ;; minibuffer when the user types space | |
| 798 | (setq vip-incomplete-ex-cmd nil) | |
| 799 | ;; this must be the last clause in this progn | |
| 800 | (substring ex-file (match-beginning 0) (match-end 0)) | |
| 801 | ) | |
| 802 | "")) | |
| 803 | ;; this leaves only the command name in the work area | |
| 804 | ;; file names are gone | |
| 805 | (delete-region (point) (1- (point-max))) | |
| 806 | )) | |
| 807 | (goto-char (point-max)) | |
| 808 | (skip-chars-backward " \t\n") | |
| 809 | (setq prompt (buffer-substring (point-min) (point))) | |
| 810 | )) | |
| 811 | ||
| 812 | (setq vip-last-ex-prompt prompt) | |
| 813 | ||
| 814 | ;; If we just finished reading command, redisplay prompt | |
| 815 | (if vip-incomplete-ex-cmd | |
| 816 | (setq ex-file (vip-ex-read-file-name (format ":%s " prompt))) | |
| 817 | ;; file was typed in-line | |
| 818 | (setq ex-file (or ex-file ""))) | |
| 819 | )) | |
| 820 | ||
| 821 | ||
| 822 | ;; Completes file name or exits minibuffer. If Ex command accepts multiple | |
| 823 | ;; file names, arranges to re-enter the minibuffer. | |
| 824 | (defun vip-complete-filename-or-exit () | |
| 825 | (interactive) | |
| 826 | (setq vip-keep-reading-filename t) | |
| 827 | ;; don't exit if directory---ex-commands don't | |
| 828 | (cond ((ex-cmd-accepts-multiple-files-p ex-token) (exit-minibuffer)) | |
| 829 | (t (minibuffer-complete-word)))) | |
| 830 | ||
| 831 | ||
| 832 | (defun ex-cmd-accepts-multiple-files-p (token) | |
| 833 | (member token '("edit" "next" "Next"))) | |
| 834 | ||
| 835 | ;; If user doesn't enter anything, then "" is returned, i.e., the | |
| 836 | ;; prompt-directory is not returned. | |
| 837 | (defun vip-ex-read-file-name (prompt) | |
| 838 | (let* ((str "") | |
| 839 | (minibuffer-local-completion-map | |
| 840 | (copy-keymap minibuffer-local-completion-map)) | |
| 841 | beg end cont val) | |
| 842 | ||
| 843 | (vip-add-keymap ex-read-filename-map minibuffer-local-completion-map) | |
| 844 | ||
| 845 | (setq cont (setq vip-keep-reading-filename t)) | |
| 846 | (while cont | |
| 847 | (setq vip-keep-reading-filename nil | |
| 848 | val (read-file-name (concat prompt str) nil default-directory) | |
| 849 | str (concat str (if (equal val "") "" " ") | |
| 850 | val (if (equal val "") "" " "))) | |
| 851 | ||
| 852 | ;; Only edit, next, and Next commands accept multiple files. | |
| 853 | ;; vip-keep-reading-filename is set in the anonymous function that is | |
| 854 | ;; bound to " " in ex-read-filename-map. | |
| 855 | (setq cont (and vip-keep-reading-filename | |
| 856 | (ex-cmd-accepts-multiple-files-p ex-token))) | |
| 857 | ) | |
| 858 | ||
| fad2477b KH |
859 | (setq beg (string-match "[^ \t]" str) ; delete leading blanks |
| 860 | end (string-match "[ \t]*$" str)) ; delete trailing blanks | |
| 6c2e12f4 KH |
861 | (if (member ex-token '("read" "write")) |
| 862 | (if (string-match "[\t ]*!" str) | |
| 863 | ;; this is actually a shell command | |
| 864 | (progn | |
| 865 | (setq ex-cmdfile t) | |
| 866 | (setq beg (1+ beg)) | |
| 867 | (setq vip-last-ex-prompt (concat vip-last-ex-prompt " !"))))) | |
| 868 | (substring str (or beg 0) end))) | |
| 869 | ||
| 8f2685cb | 870 | ;; Execute ex command using the value of addresses |
| 6c2e12f4 | 871 | (defun vip-execute-ex-command () |
| 6c2e12f4 KH |
872 | (vip-deactivate-mark) |
| 873 | (cond ((string= ex-token "args") (ex-args)) | |
| 874 | ((string= ex-token "copy") (ex-copy nil)) | |
| 875 | ((string= ex-token "cd") (ex-cd)) | |
| 876 | ((string= ex-token "chdir") (ex-cd)) | |
| 877 | ((string= ex-token "delete") (ex-delete)) | |
| 878 | ((string= ex-token "edit") (ex-edit)) | |
| 879 | ((string= ex-token "file") (vip-info-on-file)) | |
| 880 | ((string= ex-token "goto") (ex-goto)) | |
| 881 | ((string= ex-token "help") (ex-help)) | |
| 882 | ((string= ex-token "join") (ex-line "join")) | |
| 883 | ((string= ex-token "kmark") (ex-mark)) | |
| 884 | ((string= ex-token "mark") (ex-mark)) | |
| 885 | ((string= ex-token "map") (ex-map)) | |
| 886 | ((string= ex-token "move") (ex-copy t)) | |
| 887 | ((string= ex-token "next") (ex-next ex-cycle-other-window)) | |
| 888 | ((string= ex-token "Next") (ex-next (not ex-cycle-other-window))) | |
| 889 | ((string= ex-token "RelatedFile") (ex-next-related-buffer 1)) | |
| 890 | ((string= ex-token "put") (ex-put)) | |
| 891 | ((string= ex-token "pwd") (ex-pwd)) | |
| 892 | ((string= ex-token "preserve") (ex-preserve)) | |
| 893 | ((string= ex-token "PreviousRelatedFile") (ex-next-related-buffer -1)) | |
| 894 | ((string= ex-token "quit") (ex-quit)) | |
| 895 | ((string= ex-token "read") (ex-read)) | |
| 896 | ((string= ex-token "recover") (ex-recover)) | |
| 897 | ((string= ex-token "rewind") (ex-rewind)) | |
| 898 | ((string= ex-token "submitReport") (vip-submit-report)) | |
| 899 | ((string= ex-token "set") (ex-set)) | |
| 900 | ((string= ex-token "shell") (ex-shell)) | |
| 901 | ((string= ex-token "source") (ex-source)) | |
| 902 | ((string= ex-token "sr") (ex-substitute t t)) | |
| 903 | ((string= ex-token "substitute") (ex-substitute)) | |
| 904 | ((string= ex-token "suspend") (suspend-emacs)) | |
| 905 | ((string= ex-token "stop") (suspend-emacs)) | |
| 906 | ((string= ex-token "transfer") (ex-copy nil)) | |
| 907 | ((string= ex-token "buffer") (if ex-cycle-other-window | |
| 908 | (vip-switch-to-buffer-other-window) | |
| 909 | (vip-switch-to-buffer))) | |
| 910 | ((string= ex-token "Buffer") (if ex-cycle-other-window | |
| 911 | (vip-switch-to-buffer) | |
| 912 | (vip-switch-to-buffer-other-window))) | |
| 913 | ((string= ex-token "tag") (ex-tag)) | |
| 914 | ((string= ex-token "undo") (vip-undo)) | |
| 915 | ((string= ex-token "unmap") (ex-unmap)) | |
| 916 | ((string= ex-token "version") (vip-version)) | |
| 917 | ((string= ex-token "visual") (ex-edit)) | |
| 918 | ((string= ex-token "write") (ex-write nil)) | |
| 919 | ((string= ex-token "Write") (save-some-buffers)) | |
| 920 | ((string= ex-token "wq") (ex-write t)) | |
| 921 | ((string= ex-token "WWrite") (save-some-buffers t)) ; don't ask | |
| 922 | ((string= ex-token "xit") (ex-write t)) | |
| 923 | ((string= ex-token "yank") (ex-yank)) | |
| 924 | ((string= ex-token "!") (ex-command)) | |
| 925 | ((string= ex-token "=") (ex-line-no)) | |
| 926 | ((string= ex-token ">") (ex-line "right")) | |
| 927 | ((string= ex-token "<") (ex-line "left")) | |
| 928 | ((string= ex-token "&") (ex-substitute t)) | |
| 929 | ((string= ex-token "~") (ex-substitute t t)) | |
| 930 | ((or (string= ex-token "append") | |
| 931 | (string= ex-token "change") | |
| 932 | (string= ex-token "insert") | |
| 933 | (string= ex-token "open")) | |
| 934 | (error | |
| 935 | (format "`%s': Obsolete command, not supported by Viper" | |
| 936 | ex-token))) | |
| 937 | ((or (string= ex-token "abbreviate") | |
| 938 | (string= ex-token "unabbreviate")) | |
| 939 | (error | |
| 940 | (format | |
| 8f2685cb | 941 | "`%s': Vi-style abbrevs are obsolete. Use the more powerful Emacs abbrevs" |
| 6c2e12f4 KH |
942 | ex-token))) |
| 943 | ((or (string= ex-token "list") | |
| 944 | (string= ex-token "print") | |
| 945 | (string= ex-token "z") | |
| 946 | (string= ex-token "#")) | |
| 947 | (error | |
| 948 | (format "`%s': Command not implemented in Viper" ex-token))) | |
| 949 | (t (error (format "`%s': %s" ex-token vip-BadExCommand))))) | |
| 950 | ||
| 951 | (defun vip-undisplayed-files () | |
| 952 | (mapcar | |
| 953 | (function | |
| 954 | (lambda (b) | |
| 955 | (if (null (get-buffer-window b)) | |
| 956 | (let ((f (buffer-file-name b))) | |
| 957 | (if f f | |
| 958 | (if ex-cycle-through-non-files | |
| 959 | (let ((s (buffer-name b))) | |
| 960 | (if (string= " " (substring s 0 1)) | |
| 961 | nil | |
| 962 | s)) | |
| 963 | nil))) | |
| 964 | nil))) | |
| 965 | (buffer-list))) | |
| 966 | ||
| 967 | ||
| 968 | (defun ex-args () | |
| 969 | (let ((l (vip-undisplayed-files)) | |
| 970 | (args "") | |
| 971 | (file-count 1)) | |
| 972 | (while (not (null l)) | |
| 973 | (if (car l) | |
| 974 | (setq args (format "%s %d) %s\n" args file-count (car l)) | |
| 975 | file-count (1+ file-count))) | |
| 976 | (setq l (cdr l))) | |
| 977 | (if (string= args "") | |
| 978 | (message "All files are already displayed") | |
| 979 | (save-excursion | |
| 980 | (save-window-excursion | |
| 981 | (with-output-to-temp-buffer " *vip-info*" | |
| 982 | (princ "\n\nThese files are not displayed in any window.\n") | |
| 983 | (princ "\n=============\n") | |
| 984 | (princ args) | |
| 985 | (princ "\n=============\n") | |
| 986 | (princ "\nThe numbers can be given as counts to :next. ") | |
| 987 | (princ "\n\nPress any key to continue...\n\n")) | |
| fad2477b | 988 | (vip-read-event)))))) |
| 6c2e12f4 | 989 | |
| 8f2685cb | 990 | ;; Ex cd command. Default directory of this buffer changes |
| 6c2e12f4 | 991 | (defun ex-cd () |
| 6c2e12f4 KH |
992 | (vip-get-ex-file) |
| 993 | (if (string= ex-file "") | |
| 994 | (setq ex-file "~")) | |
| 995 | (setq default-directory (file-name-as-directory (expand-file-name ex-file)))) | |
| 996 | ||
| 8f2685cb | 997 | ;; Ex copy and move command. DEL-FLAG means delete |
| 6c2e12f4 | 998 | (defun ex-copy (del-flag) |
| 6c2e12f4 KH |
999 | (vip-default-ex-addresses) |
| 1000 | (let ((address (vip-get-ex-address)) | |
| 1001 | (end (car ex-addresses)) (beg (car (cdr ex-addresses)))) | |
| 1002 | (goto-char end) | |
| 1003 | (save-excursion | |
| 1004 | (push-mark beg t) | |
| 1005 | (vip-enlarge-region (mark t) (point)) | |
| 1006 | (if del-flag | |
| 1007 | (kill-region (point) (mark t)) | |
| 1008 | (copy-region-as-kill (point) (mark t))) | |
| 1009 | (if ex-flag | |
| 1010 | (progn | |
| 1011 | (with-output-to-temp-buffer "*copy text*" | |
| 1012 | (princ | |
| 1013 | (if (or del-flag ex-g-flag ex-g-variant) | |
| 1014 | (current-kill 0) | |
| 1015 | (buffer-substring (point) (mark t))))) | |
| 1016 | (condition-case nil | |
| 1017 | (progn | |
| 1018 | (read-string "[Hit return to continue] ") | |
| 1019 | (save-excursion (kill-buffer "*copy text*"))) | |
| 1020 | (quit (save-excursion (kill-buffer "*copy text*")) | |
| 1021 | (signal 'quit nil)))))) | |
| 1022 | (if (= address 0) | |
| 1023 | (goto-char (point-min)) | |
| 1024 | (goto-char address) | |
| 1025 | (forward-line 1)) | |
| 1026 | (insert (current-kill 0)))) | |
| 1027 | ||
| 8f2685cb | 1028 | ;; Ex delete command |
| 6c2e12f4 | 1029 | (defun ex-delete () |
| 6c2e12f4 KH |
1030 | (vip-default-ex-addresses) |
| 1031 | (vip-get-ex-buffer) | |
| 1032 | (let ((end (car ex-addresses)) (beg (car (cdr ex-addresses)))) | |
| 1033 | (if (> beg end) (error vip-FirstAddrExceedsSecond)) | |
| 1034 | (save-excursion | |
| 1035 | (vip-enlarge-region beg end) | |
| 1036 | (exchange-point-and-mark) | |
| 1037 | (if ex-count | |
| 1038 | (progn | |
| 1039 | (set-mark (point)) | |
| 1040 | (forward-line (1- ex-count))) | |
| 1041 | (set-mark end)) | |
| 1042 | (vip-enlarge-region (point) (mark t)) | |
| 1043 | (if ex-flag | |
| 1044 | ;; show text to be deleted and ask for confirmation | |
| 1045 | (progn | |
| 1046 | (with-output-to-temp-buffer " *delete text*" | |
| 1047 | (princ (buffer-substring (point) (mark t)))) | |
| 1048 | (condition-case nil | |
| 1049 | (read-string "[Hit return to continue] ") | |
| 1050 | (quit | |
| 1051 | (save-excursion (kill-buffer " *delete text*")) | |
| 1052 | (error ""))) | |
| 1053 | (save-excursion (kill-buffer " *delete text*"))) | |
| 1054 | (if ex-buffer | |
| 1055 | (cond ((vip-valid-register ex-buffer '(Letter)) | |
| 1056 | (vip-append-to-register | |
| 1057 | (downcase ex-buffer) (point) (mark t))) | |
| 1058 | ((vip-valid-register ex-buffer) | |
| 1059 | (copy-to-register ex-buffer (point) (mark t) nil)) | |
| 1060 | (t (error vip-InvalidRegister ex-buffer)))) | |
| 1061 | (kill-region (point) (mark t)))))) | |
| 1062 | ||
| 1063 | ||
| 1064 | ||
| 8f2685cb KH |
1065 | ;; Ex edit command |
| 1066 | ;; In Viper, `e' and `e!' behave identically. In both cases, the user is | |
| 1067 | ;; asked if current buffer should really be discarded. | |
| 1068 | ;; This command can take multiple file names. It replaces the current buffer | |
| 1069 | ;; with the first file in its argument list | |
| 6c2e12f4 | 1070 | (defun ex-edit (&optional file) |
| 6c2e12f4 KH |
1071 | (if (not file) |
| 1072 | (vip-get-ex-file)) | |
| 1073 | (cond ((and (string= ex-file "") buffer-file-name) | |
| 1074 | (setq ex-file (abbreviate-file-name (buffer-file-name)))) | |
| 1075 | ((string= ex-file "") | |
| 1076 | (error vip-NoFileSpecified))) | |
| 1077 | ||
| 1078 | (let (msg do-edit) | |
| 1079 | (if buffer-file-name | |
| 1080 | (cond ((buffer-modified-p) | |
| 1081 | (setq msg | |
| c6b52c46 | 1082 | (format "Buffer %s is modified. Discard changes? " |
| 6c2e12f4 KH |
1083 | (buffer-name)) |
| 1084 | do-edit t)) | |
| 1085 | ((not (verify-visited-file-modtime (current-buffer))) | |
| 1086 | (setq msg | |
| 1087 | (format "File %s changed on disk. Reread from disk? " | |
| 1088 | buffer-file-name) | |
| 1089 | do-edit t)) | |
| 1090 | (t (setq do-edit nil)))) | |
| 1091 | ||
| 1092 | (if do-edit | |
| 1093 | (if (yes-or-no-p msg) | |
| 1094 | (progn | |
| 1095 | (set-buffer-modified-p nil) | |
| 1096 | (kill-buffer (current-buffer))) | |
| 1097 | (message "Buffer %s was left intact" (buffer-name)))) | |
| 1098 | ) ; let | |
| 1099 | ||
| 1100 | (if (null (setq file (get-file-buffer ex-file))) | |
| 1101 | (progn | |
| 1102 | (ex-find-file ex-file) | |
| 1103 | (vip-change-state-to-vi) | |
| 1104 | (goto-char (point-min))) | |
| 1105 | (switch-to-buffer file)) | |
| 1106 | (if ex-offset | |
| 1107 | (progn | |
| 1108 | (save-window-excursion | |
| 1109 | (set-buffer vip-ex-work-buf) | |
| 1110 | (delete-region (point-min) (point-max)) | |
| 1111 | (insert ex-offset "\n") | |
| 1112 | (goto-char (point-min))) | |
| 1113 | (goto-char (vip-get-ex-address)) | |
| 1114 | (beginning-of-line))) | |
| 1115 | (ex-fixup-history vip-last-ex-prompt ex-file)) | |
| 1116 | ||
| 1117 | ;; splits the string FILESPEC into substrings separated by newlines `\012' | |
| 1118 | ;; each line assumed to be a file name. find-file's each file thus obtained. | |
| 1119 | (defun ex-find-file (filespec) | |
| 8f2685cb | 1120 | (let (f filebuf tmp-buf status) |
| 6c2e12f4 KH |
1121 | (if (string-match "[^a-zA-Z0-9_.-/]" filespec) |
| 1122 | (progn | |
| 1123 | (save-excursion | |
| 8f2685cb | 1124 | (set-buffer (setq tmp-buf (get-buffer-create vip-ex-tmp-buf-name))) |
| fad2477b KH |
1125 | (erase-buffer) |
| 1126 | (setq status | |
| 1127 | (call-process ex-find-file-shell nil t nil | |
| 1128 | ex-find-file-shell-options | |
| 1129 | "-c" | |
| 1130 | (format "echo %s | tr ' ' '\\012'" filespec))) | |
| 6c2e12f4 | 1131 | (goto-char (point-min)) |
| 8f2685cb | 1132 | ;; Issue an error, if no match. |
| fad2477b KH |
1133 | (if (> status 0) |
| 1134 | (save-excursion | |
| 1135 | (skip-chars-forward " \t\n\j") | |
| 1136 | (if (looking-at "echo:") | |
| 1137 | (vip-forward-word 1)) | |
| 1138 | (error "%S%s" | |
| 1139 | filespec | |
| 1140 | (buffer-substring (point) (vip-line-pos 'end))) | |
| 1141 | )) | |
| 8f2685cb KH |
1142 | (reverse-region (point-min) (point-max)) |
| 1143 | (goto-char (point-min)) | |
| 6c2e12f4 | 1144 | (while (not (eobp)) |
| 8f2685cb KH |
1145 | (setq f (buffer-substring (point) (vip-line-pos 'end))) |
| 1146 | (setq filebuf (find-file f)) | |
| 1147 | (set-buffer tmp-buf) ; otherwise it'll be in f. | |
| 6c2e12f4 | 1148 | (forward-to-indentation 1)) |
| fad2477b | 1149 | )) |
| 6c2e12f4 KH |
1150 | (setq filebuf (find-file-noselect (setq f filespec)))) |
| 1151 | (switch-to-buffer filebuf) | |
| 1152 | )) | |
| 1153 | ||
| 8f2685cb | 1154 | ;; Ex global command |
| 6c2e12f4 | 1155 | (defun ex-global (variant) |
| 6c2e12f4 KH |
1156 | (let ((gcommand ex-token)) |
| 1157 | (if (or ex-g-flag ex-g-variant) | |
| 1158 | (error "`%s' within `global' is not allowed" gcommand) | |
| 1159 | (if variant | |
| 1160 | (setq ex-g-flag nil | |
| 1161 | ex-g-variant t) | |
| 1162 | (setq ex-g-flag t | |
| 1163 | ex-g-variant nil))) | |
| 1164 | (vip-get-ex-pat) | |
| 1165 | (if (null ex-token) | |
| 1166 | (error "`%s': Missing regular expression" gcommand))) | |
| 1167 | ||
| 1168 | (if (string= ex-token "") | |
| 1169 | (if (null vip-s-string) | |
| 1170 | (error vip-NoPrevSearch) | |
| 1171 | (setq ex-g-pat vip-s-string)) | |
| 1172 | (setq ex-g-pat ex-token | |
| 1173 | vip-s-string ex-token)) | |
| 1174 | (if (null ex-addresses) | |
| 1175 | (setq ex-addresses (list (point-max) (point-min))) | |
| 1176 | (vip-default-ex-addresses)) | |
| 1177 | (let ((marks nil) (mark-count 0) | |
| 1178 | com-str (end (car ex-addresses)) (beg (car (cdr ex-addresses)))) | |
| 1179 | (if (> beg end) (error vip-FirstAddrExceedsSecond)) | |
| 1180 | (save-excursion | |
| 1181 | (vip-enlarge-region beg end) | |
| 1182 | (exchange-point-and-mark) | |
| 1183 | (let ((cont t) (limit (point-marker))) | |
| 1184 | (exchange-point-and-mark) | |
| 1185 | ;; skip the last line if empty | |
| 1186 | (beginning-of-line) | |
| 1187 | (if (eobp) (vip-backward-char-carefully)) | |
| 1188 | (while (and cont (not (bobp)) (>= (point) limit)) | |
| 1189 | (beginning-of-line) | |
| 1190 | (set-mark (point)) | |
| 1191 | (end-of-line) | |
| 1192 | (let ((found (re-search-backward ex-g-pat (mark t) t))) | |
| 1193 | (if (or (and ex-g-flag found) | |
| 1194 | (and ex-g-variant (not found))) | |
| 1195 | (progn | |
| 1196 | (end-of-line) | |
| 1197 | (setq mark-count (1+ mark-count)) | |
| 1198 | (setq marks (cons (point-marker) marks))))) | |
| 1199 | (beginning-of-line) | |
| 1200 | (if (bobp) (setq cont nil) | |
| 1201 | (forward-line -1) | |
| 1202 | (end-of-line))))) | |
| 1203 | (save-window-excursion | |
| 1204 | (set-buffer vip-ex-work-buf) | |
| 1205 | (setq com-str (buffer-substring (1+ (point)) (1- (point-max))))) | |
| 1206 | (while marks | |
| 1207 | (goto-char (car marks)) | |
| 1208 | (vip-ex com-str) | |
| 1209 | (setq mark-count (1- mark-count)) | |
| 1210 | (setq marks (cdr marks))))) | |
| 1211 | ||
| 8f2685cb | 1212 | ;; Ex goto command |
| 6c2e12f4 | 1213 | (defun ex-goto () |
| 6c2e12f4 KH |
1214 | (if (null ex-addresses) |
| 1215 | (setq ex-addresses (cons (point) nil))) | |
| 1216 | (push-mark (point) t) | |
| 1217 | (goto-char (car ex-addresses)) | |
| 1218 | (beginning-of-line)) | |
| 1219 | ||
| 8f2685cb | 1220 | ;; Ex line commands. COM is join, shift-right or shift-left |
| 6c2e12f4 | 1221 | (defun ex-line (com) |
| 6c2e12f4 KH |
1222 | (vip-default-ex-addresses) |
| 1223 | (vip-get-ex-count) | |
| 1224 | (let ((end (car ex-addresses)) (beg (car (cdr ex-addresses))) point) | |
| 1225 | (if (> beg end) (error vip-FirstAddrExceedsSecond)) | |
| 1226 | (save-excursion | |
| 1227 | (vip-enlarge-region beg end) | |
| 1228 | (exchange-point-and-mark) | |
| 1229 | (if ex-count | |
| 1230 | (progn | |
| 1231 | (set-mark (point)) | |
| 1232 | (forward-line ex-count))) | |
| 1233 | (if ex-flag | |
| 1234 | ;; show text to be joined and ask for confirmation | |
| 1235 | (progn | |
| 1236 | (with-output-to-temp-buffer " *text*" | |
| 1237 | (princ (buffer-substring (point) (mark t)))) | |
| 1238 | (condition-case nil | |
| 1239 | (progn | |
| 1240 | (read-string "[Hit return to continue] ") | |
| 1241 | (ex-line-subr com (point) (mark t))) | |
| 1242 | (quit (ding))) | |
| 1243 | (save-excursion (kill-buffer " *text*"))) | |
| 1244 | (ex-line-subr com (point) (mark t))) | |
| 1245 | (setq point (point))) | |
| 1246 | (goto-char (1- point)) | |
| 1247 | (beginning-of-line))) | |
| 1248 | ||
| 1249 | (defun ex-line-subr (com beg end) | |
| 1250 | (cond ((string= com "join") | |
| 1251 | (goto-char (min beg end)) | |
| 1252 | (while (and (not (eobp)) (< (point) (max beg end))) | |
| 1253 | (end-of-line) | |
| 1254 | (if (and (<= (point) (max beg end)) (not (eobp))) | |
| 1255 | (progn | |
| 1256 | (forward-line 1) | |
| 1257 | (delete-region (point) (1- (point))) | |
| 1258 | (if (not ex-variant) (fixup-whitespace)))))) | |
| 1259 | ((or (string= com "right") (string= com "left")) | |
| 1260 | (indent-rigidly | |
| 1261 | (min beg end) (max beg end) | |
| 1262 | (if (string= com "right") vip-shift-width (- vip-shift-width))) | |
| 1263 | (goto-char (max beg end)) | |
| 1264 | (end-of-line) | |
| 1265 | (vip-forward-char-carefully)))) | |
| 1266 | ||
| 1267 | ||
| 8f2685cb | 1268 | ;; Ex mark command |
| 6c2e12f4 | 1269 | (defun ex-mark () |
| 6c2e12f4 KH |
1270 | (let (char) |
| 1271 | (if (null ex-addresses) | |
| 1272 | (setq ex-addresses | |
| 1273 | (cons (point) nil))) | |
| 1274 | (save-window-excursion | |
| 1275 | (set-buffer vip-ex-work-buf) | |
| 1276 | (skip-chars-forward " \t") | |
| 1277 | (if (looking-at "[a-z]") | |
| 1278 | (progn | |
| 1279 | (setq char (following-char)) | |
| 1280 | (forward-char 1) | |
| 1281 | (skip-chars-forward " \t") | |
| 1282 | (if (not (looking-at "[\n|]")) | |
| 1283 | (error "`%s': %s" ex-token vip-SpuriousText))) | |
| 1284 | (error "`%s' requires a following letter" ex-token))) | |
| 1285 | (save-excursion | |
| 1286 | (goto-char (car ex-addresses)) | |
| 1287 | (point-to-register (1+ (- char ?a)))))) | |
| 1288 | ||
| 1289 | ||
| 1290 | ||
| 1291 | ;; Alternate file is the file next to the first one in the buffer ring | |
| 1292 | (defun ex-next (cycle-other-window &optional find-alt-file) | |
| 1293 | (catch 'ex-edit | |
| 1294 | (let (count l) | |
| 1295 | (if (not find-alt-file) | |
| 1296 | (progn | |
| 1297 | (vip-get-ex-file) | |
| 1298 | (if (or (char-or-string-p ex-offset) | |
| fad2477b KH |
1299 | (and (not (string= "" ex-file)) |
| 1300 | (not (string-match "^[0-9]+$" ex-file)))) | |
| 6c2e12f4 KH |
1301 | (progn |
| 1302 | (ex-edit t) | |
| 1303 | (throw 'ex-edit nil)) | |
| 1304 | (setq count (string-to-int ex-file)) | |
| 1305 | (if (= count 0) (setq count 1)) | |
| 1306 | (if (< count 0) (error "Usage: `next <count>' (count >= 0)")))) | |
| 1307 | (setq count 1)) | |
| 1308 | (setq l (vip-undisplayed-files)) | |
| 1309 | (while (> count 0) | |
| 1310 | (while (and (not (null l)) (null (car l))) | |
| 1311 | (setq l (cdr l))) | |
| 1312 | (setq count (1- count)) | |
| 1313 | (if (> count 0) | |
| 1314 | (setq l (cdr l)))) | |
| 1315 | (if find-alt-file (car l) | |
| 1316 | (progn | |
| 1317 | (if (car l) | |
| 1318 | (let* ((w (if cycle-other-window | |
| 1319 | (get-lru-window) (selected-window))) | |
| 1320 | (b (window-buffer w))) | |
| 1321 | (set-window-buffer w (get-file-buffer (car l))) | |
| fad2477b KH |
1322 | (bury-buffer b) |
| 1323 | ;; this puts "next <count>" in the ex-command history | |
| 1324 | (ex-fixup-history vip-last-ex-prompt ex-file)) | |
| 6c2e12f4 KH |
1325 | (error "Not that many undisplayed files"))))))) |
| 1326 | ||
| 1327 | ||
| 1328 | (defun ex-next-related-buffer (direction &optional no-recursion) | |
| 1329 | ||
| 1330 | (vip-ring-rotate1 vip-related-files-and-buffers-ring direction) | |
| 1331 | ||
| 1332 | (let ((file-or-buffer-name | |
| 1333 | (vip-current-ring-item vip-related-files-and-buffers-ring)) | |
| 1334 | (old-ring vip-related-files-and-buffers-ring) | |
| 1335 | (old-win (selected-window)) | |
| 1336 | skip-rest buf wind) | |
| 1337 | ||
| 1338 | (or (and (ring-p vip-related-files-and-buffers-ring) | |
| 1339 | (> (ring-length vip-related-files-and-buffers-ring) 0)) | |
| 1340 | (error "This buffer has no related files or buffers")) | |
| 1341 | ||
| 1342 | (or (stringp file-or-buffer-name) | |
| 1343 | (error | |
| 1344 | "File and buffer names must be strings, %S" file-or-buffer-name)) | |
| 1345 | ||
| 1346 | (setq buf (cond ((get-buffer file-or-buffer-name)) | |
| 1347 | ((file-exists-p file-or-buffer-name) | |
| 1348 | (find-file-noselect file-or-buffer-name)) | |
| 1349 | )) | |
| 1350 | ||
| 1351 | (if (not (vip-buffer-live-p buf)) | |
| 1352 | (error "Didn't find buffer %S or file %S" | |
| 1353 | file-or-buffer-name | |
| 1354 | (abbreviate-file-name (expand-file-name file-or-buffer-name)))) | |
| 1355 | ||
| 1356 | (if (equal buf (current-buffer)) | |
| 1357 | (or no-recursion | |
| 1358 | ;; try again | |
| 1359 | (setq skip-rest t) | |
| 1360 | (ex-next-related-buffer direction 'norecursion))) | |
| 1361 | ||
| 1362 | (if skip-rest | |
| 1363 | () | |
| 1364 | ;; setup buffer | |
| 1365 | (if (setq wind (vip-get-visible-buffer-window buf)) | |
| 1366 | () | |
| 1367 | (setq wind (get-lru-window (if vip-xemacs-p nil 'visible))) | |
| 1368 | (set-window-buffer wind buf)) | |
| 1369 | ||
| 8f2685cb | 1370 | (if (vip-window-display-p) |
| 6c2e12f4 | 1371 | (progn |
| 8f2685cb KH |
1372 | (raise-frame (window-frame wind)) |
| 1373 | (if (equal (window-frame wind) (window-frame old-win)) | |
| 6c2e12f4 KH |
1374 | (save-window-excursion (select-window wind) (sit-for 1)) |
| 1375 | (select-window wind))) | |
| 1376 | (save-window-excursion (select-window wind) (sit-for 1))) | |
| 1377 | ||
| 1378 | (save-excursion | |
| 1379 | (set-buffer buf) | |
| 1380 | (setq vip-related-files-and-buffers-ring old-ring)) | |
| 1381 | ||
| 1382 | (setq vip-local-search-start-marker (point-marker)) | |
| 1383 | ))) | |
| 1384 | ||
| 1385 | ||
| 8f2685cb | 1386 | ;; Force auto save |
| 6c2e12f4 | 1387 | (defun ex-preserve () |
| 6c2e12f4 KH |
1388 | (message "Autosaving all buffers that need to be saved...") |
| 1389 | (do-auto-save t)) | |
| 1390 | ||
| 8f2685cb | 1391 | ;; Ex put |
| 6c2e12f4 | 1392 | (defun ex-put () |
| 6c2e12f4 KH |
1393 | (let ((point (if (null ex-addresses) (point) (car ex-addresses)))) |
| 1394 | (vip-get-ex-buffer) | |
| 1395 | (setq vip-use-register ex-buffer) | |
| 1396 | (goto-char point) | |
| 1397 | (if (bobp) (vip-Put-back 1) (vip-put-back 1)))) | |
| 1398 | ||
| 8f2685cb | 1399 | ;; Ex print working directory |
| 6c2e12f4 | 1400 | (defun ex-pwd () |
| 6c2e12f4 KH |
1401 | (message default-directory)) |
| 1402 | ||
| 8f2685cb | 1403 | ;; Ex quit command |
| 6c2e12f4 | 1404 | (defun ex-quit () |
| 8f2685cb KH |
1405 | ;; skip "!", if it is q!. In Viper q!, w!, etc., behave as q, w, etc. |
| 1406 | (save-excursion | |
| 1407 | (set-buffer vip-ex-work-buf) | |
| 1408 | (if (looking-at "!") (forward-char 1))) | |
| 6c2e12f4 KH |
1409 | (if (< vip-expert-level 3) |
| 1410 | (save-buffers-kill-emacs) | |
| 1411 | (kill-buffer (current-buffer)))) | |
| 1412 | ||
| 1413 | ||
| 8f2685cb | 1414 | ;; Ex read command |
| 6c2e12f4 | 1415 | (defun ex-read () |
| 6c2e12f4 KH |
1416 | (vip-get-ex-file) |
| 1417 | (let ((point (if (null ex-addresses) (point) (car ex-addresses)))) | |
| 1418 | (goto-char point) | |
| 1419 | (vip-add-newline-at-eob-if-necessary) | |
| 1420 | (if (not (or (bobp) (eobp))) (forward-line 1)) | |
| 1421 | (if (and (not ex-variant) (string= ex-file "")) | |
| 1422 | (progn | |
| 1423 | (if (null buffer-file-name) | |
| 1424 | (error vip-NoFileSpecified)) | |
| 1425 | (setq ex-file buffer-file-name))) | |
| 1426 | (if ex-cmdfile | |
| 1427 | (shell-command ex-file t) | |
| 1428 | (insert-file-contents ex-file))) | |
| 1429 | (ex-fixup-history vip-last-ex-prompt ex-file)) | |
| 1430 | ||
| 1431 | ;; this function fixes ex-history for some commands like ex-read, ex-edit | |
| 1432 | (defun ex-fixup-history (&rest args) | |
| 1433 | (setq vip-ex-history | |
| 1434 | (cons (mapconcat 'identity args " ") (cdr vip-ex-history)))) | |
| 1435 | ||
| 1436 | ||
| 8f2685cb | 1437 | ;; Ex recover from emacs \#file\# |
| 6c2e12f4 | 1438 | (defun ex-recover () |
| 6c2e12f4 KH |
1439 | (vip-get-ex-file) |
| 1440 | (if (or ex-append ex-offset) | |
| 1441 | (error "`recover': %s" vip-SpuriousText)) | |
| 1442 | (if (string= ex-file "") | |
| 1443 | (progn | |
| 1444 | (if (null buffer-file-name) | |
| 1445 | (error "This buffer isn't visiting any file")) | |
| 1446 | (setq ex-file buffer-file-name)) | |
| 1447 | (setq ex-file (expand-file-name ex-file))) | |
| 1448 | (if (and (not (string= ex-file (buffer-file-name))) | |
| 1449 | (buffer-modified-p) | |
| 1450 | (not ex-variant)) | |
| 1451 | (error "No write since last change \(:rec! overrides\)")) | |
| 1452 | (recover-file ex-file)) | |
| 1453 | ||
| 8f2685cb | 1454 | ;; Tell that `rewind' is obsolete and to use `:next count' instead |
| 6c2e12f4 | 1455 | (defun ex-rewind () |
| 6c2e12f4 KH |
1456 | (message |
| 1457 | "Use `:n <count>' instead. Counts are obtained from the `:args' command")) | |
| 1458 | ||
| 1459 | ||
| 1460 | ;; read variable name for ex-set | |
| 1461 | (defun ex-set-read-variable () | |
| 1462 | (let ((minibuffer-local-completion-map | |
| 1463 | (copy-keymap minibuffer-local-completion-map)) | |
| 1464 | (cursor-in-echo-area t) | |
| 1465 | str batch) | |
| 1466 | (define-key | |
| 1467 | minibuffer-local-completion-map " " 'minibuffer-complete-and-exit) | |
| 1468 | (define-key minibuffer-local-completion-map "=" 'exit-minibuffer) | |
| 1469 | (if (vip-set-unread-command-events | |
| 1470 | (ex-get-inline-cmd-args "[ \t]*[a-zA-Z]*[ \t]*" nil "\C-m")) | |
| 1471 | (progn | |
| 1472 | (setq batch t) | |
| 1473 | (vip-set-unread-command-events ?\C-m))) | |
| 1474 | (message ":set <Variable> [= <Value>]") | |
| 1475 | (or batch (sit-for 2)) | |
| 1476 | ||
| 1477 | (while (string-match "^[ \\t\\n]*$" | |
| 1478 | (setq str | |
| 1479 | (completing-read ":set " ex-variable-alist))) | |
| 1480 | (message ":set <Variable> ") | |
| 1481 | ;; if there are unread events, don't wait | |
| 1482 | (or (vip-set-unread-command-events "") (sit-for 2)) | |
| 1483 | ) ; while | |
| 1484 | str)) | |
| 1485 | ||
| 1486 | ||
| 1487 | (defun ex-set () | |
| 1488 | (let ((var (ex-set-read-variable)) | |
| 1489 | (val 0) | |
| 1490 | (set-cmd "setq") | |
| 1491 | (ask-if-save t) | |
| 1492 | (auto-cmd-label "; don't touch or else...") | |
| 1493 | (delete-turn-on-auto-fill-pattern | |
| 1494 | "([ \t]*add-hook[ \t]+'vip-insert-state-hooks[ \t]+'turn-on-auto-fill.*)") | |
| 1495 | actual-lisp-cmd lisp-cmd-del-pattern | |
| 1496 | val2 orig-var) | |
| 1497 | (setq orig-var var) | |
| 1498 | (cond ((member var '("ai" "autoindent")) | |
| 1499 | (setq var "vip-auto-indent" | |
| 1500 | val "t")) | |
| 1501 | ((member var '("noai" "noautoindent")) | |
| 1502 | (setq var "vip-auto-indent" | |
| 1503 | val "nil")) | |
| 1504 | ((member var '("ic" "ignorecase")) | |
| 1505 | (setq var "vip-case-fold-search" | |
| 1506 | val "t")) | |
| 1507 | ((member var '("noic" "noignorecase")) | |
| 1508 | (setq var "vip-case-fold-search" | |
| 1509 | val "nil")) | |
| 1510 | ((member var '("ma" "magic")) | |
| 1511 | (setq var "vip-re-search" | |
| 1512 | val "t")) | |
| 1513 | ((member var '("noma" "nomagic")) | |
| 1514 | (setq var "vip-re-search" | |
| 1515 | val "nil")) | |
| 1516 | ((member var '("ro" "readonly")) | |
| 1517 | (setq var "buffer-read-only" | |
| 1518 | val "t")) | |
| 1519 | ((member var '("noro" "noreadonly")) | |
| 1520 | (setq var "buffer-read-only" | |
| 1521 | val "nil")) | |
| 1522 | ((member var '("sm" "showmatch")) | |
| 1523 | (setq var "blink-matching-paren" | |
| 1524 | val "t")) | |
| 1525 | ((member var '("nosm" "noshowmatch")) | |
| 1526 | (setq var "blink-matching-paren" | |
| 1527 | val "nil")) | |
| 1528 | ((member var '("ws" "wrapscan")) | |
| 1529 | (setq var "vip-search-wrap-around-t" | |
| 1530 | val "t")) | |
| 1531 | ((member var '("nows" "nowrapscan")) | |
| 1532 | (setq var "vip-search-wrap-around-t" | |
| 1533 | val "nil"))) | |
| fad2477b | 1534 | (if (eq val 0) ; value must be set by the user |
| 6c2e12f4 KH |
1535 | (let ((cursor-in-echo-area t)) |
| 1536 | (message (format ":set %s = <Value>" var)) | |
| 1537 | ;; if there are unread events, don't wait | |
| 1538 | (or (vip-set-unread-command-events "") (sit-for 2)) | |
| 1539 | (setq val (read-string (format ":set %s = " var))) | |
| 1540 | (ex-fixup-history "set" orig-var val) | |
| 1541 | ||
| 1542 | ;; check numerical values | |
| 1543 | (if (member var | |
| 1544 | '("sw" "shiftwidth" "ts" "tabstop" "wm" "wrapmargin")) | |
| 1545 | (condition-case nil | |
| 1546 | (or (numberp (setq val2 (car (read-from-string val)))) | |
| 1547 | (error "%s: Invalid value, numberp, %S" var val)) | |
| 1548 | (error | |
| 1549 | (error "%s: Invalid value, numberp, %S" var val)))) | |
| 1550 | ||
| 1551 | (cond | |
| 1552 | ((member var '("sw" "shiftwidth")) | |
| 1553 | (setq var "vip-shift-width")) | |
| 1554 | ((member var '("ts" "tabstop")) | |
| 1555 | ;; make it take effect in curr buff and new bufs | |
| 1556 | (kill-local-variable 'tab-width) | |
| 1557 | (setq var "tab-width" | |
| 1558 | set-cmd "setq-default")) | |
| 1559 | ((member var '("tsl" "tab-stop-local")) | |
| 1560 | (setq var "tab-width" | |
| 1561 | set-cmd "setq" | |
| 1562 | ask-if-save nil)) | |
| 1563 | ((member var '("wm" "wrapmargin")) | |
| 1564 | ;; make it take effect in curr buff and new bufs | |
| 1565 | (kill-local-variable 'fill-column) | |
| 1566 | (setq var "fill-column" | |
| 1567 | val (format "(- (window-width) %s)" val) | |
| 1568 | set-cmd "setq-default")) | |
| 1569 | ((member var '("sh" "shell")) | |
| 1570 | (setq var "explicit-shell-file-name" | |
| 1571 | val (format "\"%s\"" val))))) | |
| 1572 | (ex-fixup-history "set" orig-var)) | |
| 1573 | ||
| 1574 | (setq actual-lisp-cmd (format "\n(%s %s %s) %s" | |
| 1575 | set-cmd var val auto-cmd-label)) | |
| 1576 | (setq lisp-cmd-del-pattern | |
| 1577 | (format "^\n?[ \t]*([ \t]*%s[ \t]+%s[ \t].*)[ \t]*%s" | |
| 1578 | set-cmd var auto-cmd-label)) | |
| 1579 | ||
| 1580 | (if (and ask-if-save | |
| 1581 | (y-or-n-p (format "Do you want to save this setting in %s " | |
| 1582 | vip-custom-file-name))) | |
| 1583 | (progn | |
| 1584 | (vip-save-string-in-file | |
| 1585 | actual-lisp-cmd vip-custom-file-name | |
| 1586 | ;; del pattern | |
| 1587 | lisp-cmd-del-pattern) | |
| 1588 | (if (string= var "fill-column") | |
| 1589 | (if (> val2 0) | |
| 1590 | (vip-save-string-in-file | |
| 1591 | (concat | |
| 1592 | "(add-hook 'vip-insert-state-hooks 'turn-on-auto-fill) " | |
| 1593 | auto-cmd-label) | |
| 1594 | vip-custom-file-name | |
| 1595 | delete-turn-on-auto-fill-pattern) | |
| 1596 | (vip-save-string-in-file | |
| 1597 | nil vip-custom-file-name delete-turn-on-auto-fill-pattern) | |
| 1598 | (vip-save-string-in-file | |
| 1599 | nil vip-custom-file-name | |
| 1600 | ;; del pattern | |
| 1601 | lisp-cmd-del-pattern) | |
| 1602 | )) | |
| 1603 | )) | |
| 1604 | ||
| 1605 | (message (format "%s %s %s" set-cmd var (if (string-match "^[ \t]*$" val) | |
| 1606 | (format "%S" val) | |
| 1607 | val))) | |
| 1608 | (eval (car (read-from-string actual-lisp-cmd))) | |
| 1609 | (if (string= var "fill-column") | |
| 1610 | (if (> val2 0) | |
| 1611 | (auto-fill-mode 1) | |
| 1612 | (auto-fill-mode -1))) | |
| 1613 | ||
| 1614 | )) | |
| 1615 | ||
| 1616 | ;; In inline args, skip regex-forw and (optionally) chars-back. | |
| 1617 | ;; Optional 3d arg is a string that should replace ' ' to prevent its | |
| 1618 | ;; special meaning | |
| 1619 | (defun ex-get-inline-cmd-args (regex-forw &optional chars-back replace-str) | |
| 1620 | (save-excursion | |
| 1621 | (set-buffer vip-ex-work-buf) | |
| 1622 | (goto-char (point-min)) | |
| 1623 | (re-search-forward regex-forw nil t) | |
| 1624 | (let ((beg (point)) | |
| 1625 | end) | |
| 1626 | (goto-char (point-max)) | |
| 1627 | (if chars-back | |
| 1628 | (skip-chars-backward chars-back) | |
| 1629 | (skip-chars-backward " \t\n\C-m")) | |
| 1630 | (setq end (point)) | |
| 1631 | ;; replace SPC with `=' to suppress the special meaning SPC has | |
| 1632 | ;; in Ex commands | |
| 1633 | (goto-char beg) | |
| 1634 | (if replace-str | |
| 1635 | (while (re-search-forward " +" nil t) | |
| 1636 | (replace-match replace-str nil t) | |
| 1637 | (vip-forward-char-carefully))) | |
| 1638 | (goto-char end) | |
| 1639 | (buffer-substring beg end)))) | |
| 1640 | ||
| 1641 | ||
| 8f2685cb | 1642 | ;; Ex shell command |
| 6c2e12f4 | 1643 | (defun ex-shell () |
| 6c2e12f4 KH |
1644 | (shell)) |
| 1645 | ||
| 8f2685cb | 1646 | ;; Viper help. Invokes Info |
| 6c2e12f4 | 1647 | (defun ex-help () |
| 6c2e12f4 KH |
1648 | (condition-case nil |
| 1649 | (progn | |
| 1650 | (pop-to-buffer (get-buffer-create "*info*")) | |
| 6dce1984 | 1651 | (info "viper.info") |
| 6c2e12f4 KH |
1652 | (message "Type `i' to search for a specific topic")) |
| 1653 | (error (beep 1) | |
| 1654 | (with-output-to-temp-buffer " *vip-info*" | |
| 8f2685cb KH |
1655 | (princ (format " |
| 1656 | The Info file for Viper does not seem to be installed. | |
| 6c2e12f4 | 1657 | |
| 8f2685cb KH |
1658 | This file is part of the standard distribution of %sEmacs. |
| 1659 | Please contact your system administrator. " | |
| 1660 | (if vip-xemacs-p "X" "") | |
| 1661 | )))))) | |
| 6c2e12f4 | 1662 | |
| 8f2685cb | 1663 | ;; Ex source command. Loads the file specified as argument or `~/.vip' |
| 6c2e12f4 | 1664 | (defun ex-source () |
| 6c2e12f4 KH |
1665 | (vip-get-ex-file) |
| 1666 | (if (string= ex-file "") | |
| 1667 | (load vip-custom-file-name) | |
| 1668 | (load ex-file))) | |
| 1669 | ||
| 8f2685cb KH |
1670 | ;; Ex substitute command |
| 1671 | ;; If REPEAT use previous regexp which is ex-reg-exp or vip-s-string | |
| 6c2e12f4 | 1672 | (defun ex-substitute (&optional repeat r-flag) |
| 6c2e12f4 KH |
1673 | (let ((opt-g nil) |
| 1674 | (opt-c nil) | |
| 1675 | (matched-pos nil) | |
| 1676 | (case-fold-search vip-case-fold-search) | |
| 1677 | delim pat repl) | |
| 1678 | (if repeat (setq ex-token nil) (setq delim (vip-get-ex-pat))) | |
| 1679 | (if (null ex-token) | |
| fad2477b KH |
1680 | (progn |
| 1681 | (setq pat (if r-flag vip-s-string ex-reg-exp)) | |
| 1682 | (or (stringp pat) | |
| 1683 | (error "No previous pattern to use in substitution")) | |
| 1684 | (setq repl ex-repl | |
| 1685 | delim (string-to-char pat))) | |
| 6c2e12f4 KH |
1686 | (setq pat (if (string= ex-token "") vip-s-string ex-token)) |
| 1687 | (setq vip-s-string pat | |
| 1688 | ex-reg-exp pat) | |
| 1689 | (setq delim (vip-get-ex-pat)) | |
| 1690 | (if (null ex-token) | |
| 1691 | (setq ex-token "" | |
| 1692 | ex-repl "") | |
| 1693 | (setq repl ex-token | |
| 1694 | ex-repl ex-token))) | |
| 1695 | (while (vip-get-ex-opt-gc delim) | |
| 1696 | (if (string= ex-token "g") (setq opt-g t) (setq opt-c t))) | |
| 1697 | (vip-get-ex-count) | |
| 1698 | (if ex-count | |
| 1699 | (save-excursion | |
| 1700 | (if ex-addresses (goto-char (car ex-addresses))) | |
| 1701 | (set-mark (point)) | |
| 1702 | (forward-line (1- ex-count)) | |
| 1703 | (setq ex-addresses (cons (point) (cons (mark t) nil)))) | |
| 1704 | (if (null ex-addresses) | |
| 1705 | (setq ex-addresses (cons (point) (cons (point) nil))) | |
| 1706 | (if (null (cdr ex-addresses)) | |
| 1707 | (setq ex-addresses (cons (car ex-addresses) ex-addresses))))) | |
| 1708 | ;(setq G opt-g) | |
| 1709 | (let ((beg (car ex-addresses)) | |
| 1710 | (end (car (cdr ex-addresses))) | |
| 1711 | eol-mark) | |
| 1712 | (save-excursion | |
| 1713 | (vip-enlarge-region beg end) | |
| 1714 | (let ((limit (save-excursion | |
| 1715 | (goto-char (max (point) (mark t))) | |
| 1716 | (point-marker)))) | |
| 1717 | (goto-char (min (point) (mark t))) | |
| 1718 | (while (< (point) limit) | |
| 1719 | (end-of-line) | |
| 1720 | (setq eol-mark (point-marker)) | |
| 1721 | (beginning-of-line) | |
| 1722 | (if opt-g | |
| 1723 | (progn | |
| 1724 | (while (and (not (eolp)) | |
| 1725 | (re-search-forward pat eol-mark t)) | |
| 1726 | (if (or (not opt-c) (y-or-n-p "Replace? ")) | |
| 1727 | (progn | |
| 1728 | (setq matched-pos (point)) | |
| 1729 | (if (not (stringp repl)) | |
| 1730 | (error "Can't perform Ex substitution: No previous replacement pattern")) | |
| 1731 | (replace-match repl t t)))) | |
| 1732 | (end-of-line) | |
| 1733 | (vip-forward-char-carefully)) | |
| 1734 | (if (null pat) | |
| 1735 | (error | |
| 1736 | "Can't repeat Ex substitution: No previous regular expression")) | |
| 1737 | (if (and (re-search-forward pat eol-mark t) | |
| 1738 | (or (not opt-c) (y-or-n-p "Replace? "))) | |
| 1739 | (progn | |
| 1740 | (setq matched-pos (point)) | |
| 1741 | (if (not (stringp repl)) | |
| 1742 | (error "Can't perform Ex substitution: No previous replacement pattern")) | |
| 1743 | (replace-match repl t t))) | |
| 1744 | (end-of-line) | |
| 1745 | (vip-forward-char-carefully)))))) | |
| 1746 | (if matched-pos (goto-char matched-pos)) | |
| 1747 | (beginning-of-line) | |
| 1748 | (if opt-c (message "done")))) | |
| 1749 | ||
| 8f2685cb | 1750 | ;; Ex tag command |
| 6c2e12f4 | 1751 | (defun ex-tag () |
| 6c2e12f4 KH |
1752 | (let (tag) |
| 1753 | (save-window-excursion | |
| 1754 | (set-buffer vip-ex-work-buf) | |
| 1755 | (skip-chars-forward " \t") | |
| 1756 | (set-mark (point)) | |
| 1757 | (skip-chars-forward "^ |\t\n") | |
| 1758 | (setq tag (buffer-substring (mark t) (point)))) | |
| 1759 | (if (not (string= tag "")) (setq ex-tag tag)) | |
| 1760 | (vip-change-state-to-emacs) | |
| 1761 | (condition-case conds | |
| 1762 | (progn | |
| 1763 | (if (string= tag "") | |
| 1764 | (find-tag ex-tag t) | |
| 1765 | (find-tag-other-window ex-tag)) | |
| 1766 | (vip-change-state-to-vi)) | |
| 1767 | (error | |
| 1768 | (vip-change-state-to-vi) | |
| 1769 | (vip-message-conditions conds))))) | |
| 1770 | ||
| 8f2685cb | 1771 | ;; Ex write command |
| 6c2e12f4 | 1772 | (defun ex-write (q-flag) |
| 6c2e12f4 KH |
1773 | (vip-default-ex-addresses t) |
| 1774 | (vip-get-ex-file) | |
| 1775 | (let ((end (car ex-addresses)) (beg (car (cdr ex-addresses))) | |
| 1776 | temp-buf writing-same-file region | |
| 1777 | file-exists writing-whole-file) | |
| 1778 | (if (> beg end) (error vip-FirstAddrExceedsSecond)) | |
| 1779 | (if ex-cmdfile | |
| 1780 | (progn | |
| 1781 | (vip-enlarge-region beg end) | |
| 1782 | (shell-command-on-region (point) (mark t) ex-file)) | |
| 1783 | (if (and (string= ex-file "") (not (buffer-file-name))) | |
| 1784 | (setq ex-file | |
| 1785 | (read-file-name | |
| 1786 | (format "Buffer %s isn't visiting any file. File to save in: " | |
| 1787 | (buffer-name))))) | |
| 1788 | ||
| 1789 | (setq writing-whole-file (and (= (point-min) beg) (= (point-max) end)) | |
| 1790 | ex-file (if (string= ex-file "") | |
| 1791 | (buffer-file-name) | |
| c6b52c46 MK |
1792 | (expand-file-name ex-file))) |
| 1793 | ;; if ex-file is a directory use the file portion of the buffer file name | |
| 1794 | (if (and (file-directory-p ex-file) | |
| 1795 | buffer-file-name | |
| 1796 | (not (file-directory-p buffer-file-name))) | |
| 1797 | (setq ex-file | |
| 1798 | (concat ex-file (file-name-nondirectory buffer-file-name)))) | |
| 1799 | ||
| 1800 | (setq file-exists (file-exists-p ex-file) | |
| 6c2e12f4 | 1801 | writing-same-file (string= ex-file (buffer-file-name))) |
| c6b52c46 | 1802 | |
| 6c2e12f4 KH |
1803 | (if (and writing-whole-file writing-same-file) |
| 1804 | (if (not (buffer-modified-p)) | |
| 1805 | (message "(No changes need to be saved)") | |
| 1806 | (save-buffer) | |
| 1807 | (ex-write-info file-exists ex-file beg end)) | |
| 1808 | ;; writing some other file or portion of the currents | |
| 1809 | ;; file---create temp buffer for it | |
| 1810 | ;; disable undo in that buffer, for efficiency | |
| 1811 | (buffer-disable-undo (setq temp-buf (create-file-buffer ex-file))) | |
| 1812 | (unwind-protect | |
| 1813 | (save-excursion | |
| 1814 | (if (and file-exists | |
| 1815 | (not writing-same-file) | |
| 1816 | (not (yes-or-no-p | |
| 1817 | (format "File %s exists. Overwrite? " ex-file)))) | |
| 1818 | (error "Quit") | |
| 1819 | (vip-enlarge-region beg end) | |
| 1820 | (setq region (buffer-substring (point) (mark t))) | |
| 1821 | (set-buffer temp-buf) | |
| 1822 | (set-visited-file-name ex-file) | |
| 1823 | (erase-buffer) | |
| 1824 | (if (and file-exists ex-append) | |
| 1825 | (insert-file-contents ex-file)) | |
| 1826 | (goto-char (point-max)) | |
| 1827 | (insert region) | |
| 1828 | (save-buffer) | |
| 1829 | (ex-write-info file-exists ex-file (point-min) (point-max)) | |
| 1830 | ) | |
| 1831 | (set-buffer temp-buf) | |
| 1832 | (set-buffer-modified-p nil) | |
| 1833 | (kill-buffer temp-buf) | |
| c6b52c46 MK |
1834 | )) |
| 1835 | ) | |
| 6c2e12f4 KH |
1836 | ;; this prevents the loss of data if writing part of the buffer |
| 1837 | (if (and (buffer-file-name) writing-same-file) | |
| 1838 | (set-visited-file-modtime)) | |
| 1839 | (or writing-whole-file | |
| 1840 | (not writing-same-file) | |
| 1841 | (set-buffer-modified-p t)) | |
| 1842 | (if q-flag | |
| 1843 | (if (< vip-expert-level 2) | |
| 1844 | (save-buffers-kill-emacs) | |
| 1845 | (kill-buffer (current-buffer)))) | |
| 1846 | ))) | |
| 1847 | ||
| 1848 | ||
| 1849 | (defun ex-write-info (exists file-name beg end) | |
| 1850 | (message "`%s'%s %d lines, %d characters" | |
| 1851 | (abbreviate-file-name file-name) | |
| 1852 | (if exists "" " [New file]") | |
| 1853 | (count-lines beg (min (1+ end) (point-max))) | |
| 1854 | (- end beg))) | |
| 1855 | ||
| 8f2685cb | 1856 | ;; Ex yank command |
| 6c2e12f4 | 1857 | (defun ex-yank () |
| 6c2e12f4 KH |
1858 | (vip-default-ex-addresses) |
| 1859 | (vip-get-ex-buffer) | |
| 1860 | (let ((end (car ex-addresses)) (beg (car (cdr ex-addresses)))) | |
| 1861 | (if (> beg end) (error vip-FirstAddrExceedsSecond)) | |
| 1862 | (save-excursion | |
| 1863 | (vip-enlarge-region beg end) | |
| 1864 | (exchange-point-and-mark) | |
| 1865 | (if (or ex-g-flag ex-g-variant) | |
| 1866 | (error "Can't execute `yank' within `global'")) | |
| 1867 | (if ex-count | |
| 1868 | (progn | |
| 1869 | (set-mark (point)) | |
| 1870 | (forward-line (1- ex-count))) | |
| 1871 | (set-mark end)) | |
| 1872 | (vip-enlarge-region (point) (mark t)) | |
| 1873 | (if ex-flag (error "`yank': %s" vip-SpuriousText)) | |
| 1874 | (if ex-buffer | |
| 1875 | (cond ((vip-valid-register ex-buffer '(Letter)) | |
| 1876 | (vip-append-to-register | |
| 1877 | (downcase ex-buffer) (point) (mark t))) | |
| 1878 | ((vip-valid-register ex-buffer) | |
| 1879 | (copy-to-register ex-buffer (point) (mark t) nil)) | |
| 1880 | (t (error vip-InvalidRegister ex-buffer)))) | |
| 1881 | (copy-region-as-kill (point) (mark t))))) | |
| 1882 | ||
| 8f2685cb | 1883 | ;; Execute shell command |
| 6c2e12f4 | 1884 | (defun ex-command () |
| 6c2e12f4 KH |
1885 | (let (command) |
| 1886 | (save-window-excursion | |
| 1887 | (set-buffer vip-ex-work-buf) | |
| 1888 | (skip-chars-forward " \t") | |
| 1889 | (setq command (buffer-substring (point) (point-max))) | |
| 1890 | (end-of-line)) | |
| 1891 | (setq command (ex-expand-filsyms command (current-buffer))) | |
| 1892 | (if (and (> (length command) 0) (string= "!" (substring command 0 1))) | |
| 1893 | (if vip-ex-last-shell-com | |
| 1894 | (setq command (concat vip-ex-last-shell-com (substring command 1))) | |
| 1895 | (error "No previous shell command"))) | |
| 1896 | (setq vip-ex-last-shell-com command) | |
| 1897 | (if (null ex-addresses) | |
| 1898 | (shell-command command) | |
| 1899 | (let ((end (car ex-addresses)) (beg (car (cdr ex-addresses)))) | |
| 1900 | (if (null beg) (setq beg end)) | |
| 1901 | (save-excursion | |
| 1902 | (goto-char beg) | |
| 1903 | (set-mark end) | |
| 1904 | (vip-enlarge-region (point) (mark t)) | |
| 1905 | (shell-command-on-region (point) (mark t) command t)) | |
| 1906 | (goto-char beg))))) | |
| 1907 | ||
| 8f2685cb | 1908 | ;; Print line number |
| 6c2e12f4 | 1909 | (defun ex-line-no () |
| 6c2e12f4 KH |
1910 | (message "%d" |
| 1911 | (1+ (count-lines | |
| 1912 | (point-min) | |
| 1913 | (if (null ex-addresses) (point-max) (car ex-addresses)))))) | |
| 1914 | ||
| 8f2685cb | 1915 | ;; Give information on the file visited by the current buffer |
| 6c2e12f4 | 1916 | (defun vip-info-on-file () |
| 6c2e12f4 | 1917 | (interactive) |
| fad2477b KH |
1918 | (let (file info) |
| 1919 | (setq file (if (buffer-file-name) | |
| 1920 | (concat (abbreviate-file-name (buffer-file-name)) ":") | |
| 1921 | (concat (buffer-name) " [Not visiting any file]:")) | |
| 1922 | info (format "line=%d/%d pos=%d/%d col=%d %s" | |
| 1923 | (count-lines (point-min) (vip-line-pos 'end)) | |
| 1924 | (count-lines (point-min) (point-max)) | |
| 1925 | (point) (1- (point-max)) | |
| 1926 | (1+ (current-column)) | |
| 1927 | (if (buffer-modified-p) "[Modified]" "[Unchanged]"))) | |
| 1928 | (if (< (+ 1 (length info) (length file)) | |
| 1929 | (window-width (minibuffer-window))) | |
| 1930 | (message (concat file " " info)) | |
| 1931 | (save-window-excursion | |
| 1932 | (with-output-to-temp-buffer " *vip-info*" | |
| 1933 | (princ (concat "\n" | |
| 1934 | file "\n\n\t" info | |
| 1935 | "\n\n\nPress any key to continue...\n\n"))) | |
| 1936 | (vip-read-event))) | |
| 1937 | )) | |
| 6c2e12f4 KH |
1938 | |
| 1939 | ||
| 1940 | (provide 'viper-ex) | |
| 1941 | ||
| 1942 | ;;; viper-ex.el ends here |