| 1 | ;;; viper-ex.el --- functions implementing the Ex commands for Viper |
| 2 | |
| 3 | ;; Copyright (C) 1994-1998, 2000-2012 Free Software Foundation, Inc. |
| 4 | |
| 5 | ;; Author: Michael Kifer <kifer@cs.stonybrook.edu> |
| 6 | ;; Package: viper |
| 7 | |
| 8 | ;; This file is part of GNU Emacs. |
| 9 | |
| 10 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
| 11 | ;; it under the terms of the GNU General Public License as published by |
| 12 | ;; the Free Software Foundation, either version 3 of the License, or |
| 13 | ;; (at your option) any later version. |
| 14 | |
| 15 | ;; GNU Emacs is distributed in the hope that it will be useful, |
| 16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | ;; GNU General Public License for more details. |
| 19 | |
| 20 | ;; You should have received a copy of the GNU General Public License |
| 21 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
| 22 | |
| 23 | ;;; Commentary: |
| 24 | |
| 25 | ;;; Code: |
| 26 | |
| 27 | (provide 'viper-ex) |
| 28 | |
| 29 | ;; Compiler pacifier |
| 30 | (defvar read-file-name-map) |
| 31 | (defvar viper-use-register) |
| 32 | (defvar viper-s-string) |
| 33 | (defvar viper-shift-width) |
| 34 | (defvar viper-ex-history) |
| 35 | (defvar viper-related-files-and-buffers-ring) |
| 36 | (defvar viper-local-search-start-marker) |
| 37 | (defvar viper-expert-level) |
| 38 | (defvar viper-custom-file-name) |
| 39 | (defvar viper-case-fold-search) |
| 40 | (defvar explicit-shell-file-name) |
| 41 | (defvar compile-command) |
| 42 | |
| 43 | ;; loading happens only in non-interactive compilation |
| 44 | ;; in order to spare non-viperized emacs from being viperized |
| 45 | (if noninteractive |
| 46 | (eval-when-compile |
| 47 | (if (not (featurep 'viper-cmd)) |
| 48 | (require 'viper-cmd)) |
| 49 | )) |
| 50 | ;; end pacifier |
| 51 | |
| 52 | (require 'viper-util) |
| 53 | |
| 54 | (defgroup viper-ex nil |
| 55 | "Viper support for Ex commands." |
| 56 | :prefix "ex-" |
| 57 | :group 'viper) |
| 58 | |
| 59 | |
| 60 | |
| 61 | ;;; Variables |
| 62 | |
| 63 | (defconst viper-ex-work-buf-name " *ex-working-space*") |
| 64 | (defvar viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name)) |
| 65 | (defconst viper-ex-tmp-buf-name " *ex-tmp*") |
| 66 | (defconst viper-ex-print-buf-name " *ex-print*") |
| 67 | (defvar viper-ex-print-buf (get-buffer-create viper-ex-print-buf-name)) |
| 68 | |
| 69 | |
| 70 | ;;; ex-commands... |
| 71 | |
| 72 | (defun ex-cmd-obsolete (name) |
| 73 | (error "`%s': Obsolete command, not supported by Viper" name)) |
| 74 | |
| 75 | (defun ex-cmd-not-yet (name) |
| 76 | (error "`%s': Command not implemented in Viper" name)) |
| 77 | |
| 78 | ;; alist entries: name (in any order), command, cont(??) |
| 79 | ;; If command is a string, then that is an alias to the real command |
| 80 | ;; to execute (for instance, ":m" -> ":move"). |
| 81 | ;; command attributes: |
| 82 | ;; is-mashed: the command's args may be jammed right up against the command |
| 83 | ;; one-letter: this is a one-letter token. Any text appearing after |
| 84 | ;; the name gets appended as an argument for the command |
| 85 | ;; i.e. ":kabc" gets turned into (ex-mark "abc") |
| 86 | (defconst ex-token-alist '( |
| 87 | ("!" (ex-command)) |
| 88 | ("&" (ex-substitute t)) |
| 89 | ("=" (ex-line-no)) |
| 90 | (">" (ex-line "right")) |
| 91 | ("<" (ex-line "left")) |
| 92 | ("Buffer" (if ex-cycle-other-window |
| 93 | (viper-switch-to-buffer) |
| 94 | (viper-switch-to-buffer-other-window))) |
| 95 | ("Next" (ex-next (not ex-cycle-other-window))) |
| 96 | ("PreviousRelatedFile" (ex-next-related-buffer -1)) |
| 97 | ("RelatedFile" (ex-next-related-buffer 1)) |
| 98 | ("W" "Write") |
| 99 | ("WWrite" (save-some-buffers t)) |
| 100 | ("Write" (save-some-buffers)) |
| 101 | ("a" "append") |
| 102 | ("args" (ex-args)) |
| 103 | ("buffer" (if ex-cycle-other-window |
| 104 | (viper-switch-to-buffer-other-window) |
| 105 | (viper-switch-to-buffer))) |
| 106 | ("c" "change") |
| 107 | ;; ch should be "change" but maintain old viper compatibility |
| 108 | ("ch" "chdir") |
| 109 | ("cd" (ex-cd)) |
| 110 | ("chdir" (ex-cd)) |
| 111 | ("copy" (ex-copy nil)) |
| 112 | ("customize" (customize-group "viper")) |
| 113 | ("delete" (ex-delete)) |
| 114 | ("edit" (ex-edit)) |
| 115 | ("file" (ex-set-visited-file-name)) |
| 116 | ("g" "global") |
| 117 | ("global" (ex-global nil) is-mashed) |
| 118 | ("goto" (ex-goto)) |
| 119 | ("help" (ex-help)) |
| 120 | ("join" (ex-line "join")) |
| 121 | ("k" (ex-mark) one-letter) |
| 122 | ("kmark" (ex-mark)) |
| 123 | ("m" "move") |
| 124 | ("make" (ex-compile)) |
| 125 | ; old viper doesn't specify a default for "ma" so leave it undefined |
| 126 | ("map" (ex-map)) |
| 127 | ("mark" (ex-mark)) |
| 128 | ("move" (ex-copy t)) |
| 129 | ("next" (ex-next ex-cycle-other-window)) |
| 130 | ("p" "print") |
| 131 | ("preserve" (ex-preserve)) |
| 132 | ("print" (ex-print)) |
| 133 | ("put" (ex-put)) |
| 134 | ("pwd" (ex-pwd)) |
| 135 | ("quit" (ex-quit)) |
| 136 | ("r" "read") |
| 137 | ("re" "read") |
| 138 | ("read" (ex-read)) |
| 139 | ("recover" (ex-recover)) |
| 140 | ("rewind" (ex-rewind)) |
| 141 | ("s" "substitute") |
| 142 | ("su" "substitute") |
| 143 | ("sub" "substitute") |
| 144 | ("set" (ex-set)) |
| 145 | ("shell" (ex-shell)) |
| 146 | ("source" (ex-source)) |
| 147 | ("stop" (suspend-emacs)) |
| 148 | ("sr" (ex-substitute t t)) |
| 149 | ("submitReport" (viper-submit-report)) |
| 150 | ("substitute" (ex-substitute) is-mashed) |
| 151 | ("suspend" (suspend-emacs)) |
| 152 | ("t" "transfer") |
| 153 | ("tag" (ex-tag)) |
| 154 | ("transfer" (ex-copy nil)) |
| 155 | ("u" "undo") |
| 156 | ("un" "undo") |
| 157 | ("undo" (viper-undo)) |
| 158 | ("unmap" (ex-unmap)) |
| 159 | ("v" "vglobal") |
| 160 | ("version" (viper-version)) |
| 161 | ("vglobal" (ex-global t) is-mashed) |
| 162 | ("visual" (ex-edit)) |
| 163 | ("w" "write") |
| 164 | ("wq" (ex-write t)) |
| 165 | ("write" (ex-write nil)) |
| 166 | ("xit" (ex-write t)) |
| 167 | ("yank" (ex-yank)) |
| 168 | ("~" (ex-substitute t t)) |
| 169 | |
| 170 | ("append" (ex-cmd-obsolete "append")) |
| 171 | ("change" (ex-cmd-obsolete "change")) |
| 172 | ("insert" (ex-cmd-obsolete "insert")) |
| 173 | ("open" (ex-cmd-obsolete "open")) |
| 174 | |
| 175 | ("list" (ex-cmd-not-yet "list")) |
| 176 | ("z" (ex-cmd-not-yet "z")) |
| 177 | ("#" (ex-cmd-not-yet "#")) |
| 178 | |
| 179 | ("abbreviate" (error "`%s': Vi abbreviations are obsolete. Use the more powerful Emacs abbrevs" ex-token)) |
| 180 | ("unabbreviate" (error "`%s': Vi abbreviations are obsolete. Use the more powerful Emacs abbrevs" ex-token)) |
| 181 | )) |
| 182 | |
| 183 | ;; No code should touch anything in the alist entry! (other than the name, |
| 184 | ;; "car entry", of course) This way, changing this data structure |
| 185 | ;; requires changing only the following ex-cmd functions... |
| 186 | |
| 187 | ;; Returns cmd if the command may be jammed right up against its |
| 188 | ;; arguments, nil if there must be a space. |
| 189 | ;; examples of mashable commands: g// g!// v// s// sno// sm// |
| 190 | (defun ex-cmd-is-mashed-with-args (cmd) |
| 191 | (if (eq 'is-mashed (car (nthcdr 2 cmd))) cmd)) |
| 192 | |
| 193 | ;; Returns true if this is a one-letter command that may be followed |
| 194 | ;; by anything, no whitespace needed. This is a special-case for ":k". |
| 195 | (defun ex-cmd-is-one-letter (cmd) |
| 196 | (if (eq 'one-letter (car (nthcdr 2 cmd))) cmd)) |
| 197 | |
| 198 | ;; Executes the function associated with the command |
| 199 | (defun ex-cmd-execute (cmd) |
| 200 | (eval (cadr cmd))) |
| 201 | |
| 202 | ;; If this is a one-letter magic command, splice in args. |
| 203 | (defun ex-splice-args-in-1-letr-cmd (key list) |
| 204 | (let ((oneletter (ex-cmd-is-one-letter (assoc (substring key 0 1) list)))) |
| 205 | (if oneletter |
| 206 | (list key |
| 207 | (append (cadr oneletter) |
| 208 | (if (< 1 (length key)) (list (substring key 1)))) |
| 209 | (car (cdr (cdr oneletter))) )) |
| 210 | )) |
| 211 | |
| 212 | |
| 213 | ;; Returns the alist entry for the appropriate key. |
| 214 | ;; Tries to complete the key before using it in the alist. |
| 215 | ;; If there is no appropriate key (no match or duplicate matches) return nil |
| 216 | (defun ex-cmd-assoc (key list) |
| 217 | (let ((entry (try-completion key list)) |
| 218 | result) |
| 219 | (setq result (cond |
| 220 | ((eq entry t) (assoc key list)) |
| 221 | ((stringp entry) (or (ex-splice-args-in-1-letr-cmd key list) |
| 222 | (assoc entry list))) |
| 223 | ((eq entry nil) (ex-splice-args-in-1-letr-cmd key list)) |
| 224 | (t nil) |
| 225 | )) |
| 226 | ;; If we end up with an alias, look up the alias... |
| 227 | (if (stringp (cadr result)) |
| 228 | (setq result (ex-cmd-assoc (cadr result) list))) |
| 229 | ;; and return the corresponding alist entry |
| 230 | result |
| 231 | )) |
| 232 | |
| 233 | |
| 234 | ;; A-list of Ex variables that can be set using the :set command. |
| 235 | (defconst ex-variable-alist |
| 236 | '(("wrapscan") ("ws") ("wrapmargin") ("wm") |
| 237 | ("tabstop-global") ("ts-g") ("tabstop") ("ts") |
| 238 | ("showmatch") ("sm") ("shiftwidth") ("sw") ("shell") ("sh") |
| 239 | ("readonly") ("ro") |
| 240 | ("nowrapscan") ("nows") ("noshowmatch") ("nosm") |
| 241 | ("noreadonly") ("noro") ("nomagic") ("noma") |
| 242 | ("noignorecase") ("noic") |
| 243 | ("noautoindent-global") ("noai-g") ("noautoindent") ("noai") |
| 244 | ("magic") ("ma") ("ignorecase") ("ic") |
| 245 | ("autoindent-global") ("ai-g") ("autoindent") ("ai") |
| 246 | ("all") |
| 247 | )) |
| 248 | |
| 249 | |
| 250 | |
| 251 | ;; Token recognized during parsing of Ex commands (e.g., "read", "comma") |
| 252 | (defvar ex-token nil) |
| 253 | |
| 254 | ;; Type of token. |
| 255 | ;; If non-nil, gives type of address; if nil, it is a command. |
| 256 | (defvar ex-token-type nil) |
| 257 | |
| 258 | ;; List of addresses passed to Ex command |
| 259 | (defvar ex-addresses nil) |
| 260 | |
| 261 | ;; This flag is supposed to be set only by `#', `print', and `list', |
| 262 | ;; none of which is implemented. So, it and the pieces of the code it |
| 263 | ;; controls are dead weight. We keep it just in case this might be |
| 264 | ;; needed in the future. |
| 265 | (defvar ex-flag nil) |
| 266 | |
| 267 | ;; "buffer" where Ex commands keep deleted data. |
| 268 | ;; In Emacs terms, this is a register. |
| 269 | (defvar ex-buffer nil) |
| 270 | |
| 271 | ;; Value of ex count. |
| 272 | (defvar ex-count nil) |
| 273 | |
| 274 | ;; Flag indicating that :global Ex command is being executed. |
| 275 | (defvar ex-g-flag nil) |
| 276 | ;; Flag indicating that :vglobal Ex command is being executed. |
| 277 | (defvar ex-g-variant nil) |
| 278 | ;; Marks to operate on during a :global Ex command. |
| 279 | (defvar ex-g-marks nil) |
| 280 | |
| 281 | ;; Save reg-exp used in substitute. |
| 282 | (defvar ex-reg-exp nil) |
| 283 | |
| 284 | |
| 285 | ;; Replace pattern for substitute. |
| 286 | (defvar ex-repl nil) |
| 287 | |
| 288 | ;; Pattern for global command. |
| 289 | (defvar ex-g-pat nil) |
| 290 | |
| 291 | (defcustom ex-unix-type-shell |
| 292 | (let ((case-fold-search t)) |
| 293 | (and (stringp shell-file-name) |
| 294 | (string-match |
| 295 | (concat |
| 296 | "\\(" |
| 297 | "csh$\\|csh.exe$" |
| 298 | "\\|" |
| 299 | "ksh$\\|ksh.exe$" |
| 300 | "\\|" |
| 301 | "^sh$\\|sh.exe$" |
| 302 | "\\|" |
| 303 | "[^a-z]sh$\\|[^a-z]sh.exe$" |
| 304 | "\\|" |
| 305 | "bash$\\|bash.exe$" |
| 306 | "\\)") |
| 307 | shell-file-name))) |
| 308 | "Is the user using a unix-type shell under a non-OS?" |
| 309 | :type 'boolean |
| 310 | :group 'viper-ex) |
| 311 | |
| 312 | (defcustom ex-unix-type-shell-options |
| 313 | (let ((case-fold-search t)) |
| 314 | (if ex-unix-type-shell |
| 315 | (cond ((string-match "\\(csh$\\|csh.exe$\\)" shell-file-name) |
| 316 | "-f") ; csh: do it fast |
| 317 | ((string-match "\\(bash$\\|bash.exe$\\)" shell-file-name) |
| 318 | "-noprofile") ; bash: ignore .profile |
| 319 | ))) |
| 320 | "Options to pass to the Unix-style shell. |
| 321 | Don't put `-c' here, as it is added automatically." |
| 322 | :type '(choice (const nil) string) |
| 323 | :group 'viper-ex) |
| 324 | |
| 325 | (defcustom ex-compile-command "make" |
| 326 | "The command to run when the user types :make." |
| 327 | :type 'string |
| 328 | :group 'viper-ex) |
| 329 | |
| 330 | (defcustom viper-glob-function |
| 331 | (cond (ex-unix-type-shell 'viper-glob-unix-files) |
| 332 | (viper-ms-style-os-p 'viper-glob-mswindows-files) ; Microsoft OS |
| 333 | (t 'viper-glob-unix-files) ; presumably UNIX |
| 334 | ) |
| 335 | "Expand the file spec containing wildcard symbols. |
| 336 | The default tries to set this variable to work with Unix, Windows, |
| 337 | and OS/2. |
| 338 | |
| 339 | However, if it doesn't work right for some types of Unix shells or some OS, |
| 340 | the user should supply the appropriate function and set this variable to the |
| 341 | corresponding function symbol." |
| 342 | :type 'symbol |
| 343 | :group 'viper-ex) |
| 344 | |
| 345 | |
| 346 | ;; Remembers the previous Ex tag. |
| 347 | (defvar ex-tag nil) |
| 348 | |
| 349 | ;; file used by Ex commands like :r, :w, :n |
| 350 | (defvar ex-file nil) |
| 351 | |
| 352 | ;; If t, tells Ex that this is a variant-command, i.e., w>>, r!, etc. |
| 353 | (defvar ex-variant nil) |
| 354 | |
| 355 | ;; Specified the offset of an Ex command, such as :read. |
| 356 | (defvar ex-offset nil) |
| 357 | |
| 358 | ;; Tells Ex that this is a w>> command. |
| 359 | (defvar ex-append nil) |
| 360 | |
| 361 | ;; File containing the shell command to be executed at Ex prompt, |
| 362 | ;; e.g., :r !date |
| 363 | (defvar ex-cmdfile nil) |
| 364 | (defvar ex-cmdfile-args "") |
| 365 | |
| 366 | ;; flag used in viper-ex-read-file-name to indicate that we may be reading |
| 367 | ;; multiple file names. Used for :edit and :next |
| 368 | (defvar viper-keep-reading-filename nil) |
| 369 | |
| 370 | (defcustom ex-cycle-other-window t |
| 371 | "*If t, :n and :b cycles through files and buffers in other window. |
| 372 | Then :N and :B cycles in the current window. If nil, this behavior is |
| 373 | reversed." |
| 374 | :type 'boolean |
| 375 | :group 'viper-ex) |
| 376 | |
| 377 | (defcustom ex-cycle-through-non-files nil |
| 378 | "*Cycle through *scratch* and other buffers that don't visit any file." |
| 379 | :type 'boolean |
| 380 | :group 'viper-ex) |
| 381 | |
| 382 | ;; Last shell command executed with :! command. |
| 383 | (defvar viper-ex-last-shell-com nil) |
| 384 | |
| 385 | ;; Indicates if Minibuffer was exited temporarily in Ex-command. |
| 386 | (defvar viper-incomplete-ex-cmd nil) |
| 387 | |
| 388 | ;; Remembers the last ex-command prompt. |
| 389 | (defvar viper-last-ex-prompt "") |
| 390 | |
| 391 | |
| 392 | ;; Get a complete ex command |
| 393 | (defun viper-get-ex-com-subr () |
| 394 | (let (cmd case-fold-search) |
| 395 | (set-mark (point)) |
| 396 | (re-search-forward "[a-zA-Z][a-zA-Z]*") |
| 397 | (setq ex-token-type 'command) |
| 398 | (setq ex-token (buffer-substring (point) (mark t))) |
| 399 | (setq cmd (ex-cmd-assoc ex-token ex-token-alist)) |
| 400 | (if cmd |
| 401 | (setq ex-token (car cmd)) |
| 402 | (setq ex-token-type 'non-command)) |
| 403 | )) |
| 404 | |
| 405 | ;; Get an ex-token which is either an address or a command. |
| 406 | ;; A token has a type, \(command, address, end-mark\), and a value |
| 407 | (defun viper-get-ex-token () |
| 408 | (save-window-excursion |
| 409 | (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name)) |
| 410 | (set-buffer viper-ex-work-buf) |
| 411 | (skip-chars-forward " \t|") |
| 412 | (let ((case-fold-search t)) |
| 413 | (cond ((looking-at "#") |
| 414 | (setq ex-token-type 'command) |
| 415 | (setq ex-token (char-to-string (following-char))) |
| 416 | (forward-char 1)) |
| 417 | ((looking-at "[a-z]") (viper-get-ex-com-subr)) |
| 418 | ((looking-at "\\.") |
| 419 | (forward-char 1) |
| 420 | (setq ex-token-type 'dot)) |
| 421 | ((looking-at "[0-9]") |
| 422 | (set-mark (point)) |
| 423 | (re-search-forward "[0-9]*") |
| 424 | (setq ex-token-type |
| 425 | (cond ((eq ex-token-type 'plus) 'add-number) |
| 426 | ((eq ex-token-type 'minus) 'sub-number) |
| 427 | (t 'abs-number))) |
| 428 | (setq ex-token |
| 429 | (string-to-number (buffer-substring (point) (mark t))))) |
| 430 | ((looking-at "\\$") |
| 431 | (forward-char 1) |
| 432 | (setq ex-token-type 'end)) |
| 433 | ((looking-at "%") |
| 434 | (forward-char 1) |
| 435 | (setq ex-token-type 'whole)) |
| 436 | ((looking-at "+") |
| 437 | (cond ((or (looking-at "+[-+]") (looking-at "+[\n|]")) |
| 438 | (forward-char 1) |
| 439 | (insert "1") |
| 440 | (backward-char 1) |
| 441 | (setq ex-token-type 'plus)) |
| 442 | ((looking-at "+[0-9]") |
| 443 | (forward-char 1) |
| 444 | (setq ex-token-type 'plus)) |
| 445 | (t |
| 446 | (error viper-BadAddress)))) |
| 447 | ((looking-at "-") |
| 448 | (cond ((or (looking-at "-[-+]") (looking-at "-[\n|]")) |
| 449 | (forward-char 1) |
| 450 | (insert "1") |
| 451 | (backward-char 1) |
| 452 | (setq ex-token-type 'minus)) |
| 453 | ((looking-at "-[0-9]") |
| 454 | (forward-char 1) |
| 455 | (setq ex-token-type 'minus)) |
| 456 | (t |
| 457 | (error viper-BadAddress)))) |
| 458 | ((looking-at "/") |
| 459 | (forward-char 1) |
| 460 | (set-mark (point)) |
| 461 | (let ((cont t)) |
| 462 | (while (and (not (eolp)) cont) |
| 463 | ;;(re-search-forward "[^/]*/") |
| 464 | (re-search-forward "[^/]*\\(/\\|\n\\)") |
| 465 | (if (not (viper-looking-back "[^\\\\]\\(\\\\\\\\\\)*\\\\/")) |
| 466 | (setq cont nil)))) |
| 467 | (backward-char 1) |
| 468 | (setq ex-token (buffer-substring (point) (mark t))) |
| 469 | (if (looking-at "/") (forward-char 1)) |
| 470 | (setq ex-token-type 'search-forward)) |
| 471 | ((looking-at "\\?") |
| 472 | (forward-char 1) |
| 473 | (set-mark (point)) |
| 474 | (let ((cont t)) |
| 475 | (while (and (not (eolp)) cont) |
| 476 | ;;(re-search-forward "[^\\?]*\\?") |
| 477 | (re-search-forward "[^\\?]*\\(\\?\\|\n\\)") |
| 478 | (if (not (viper-looking-back "[^\\\\]\\(\\\\\\\\\\)*\\\\\\?")) |
| 479 | (setq cont nil)) |
| 480 | (backward-char 1) |
| 481 | (if (not (looking-at "\n")) (forward-char 1)))) |
| 482 | (setq ex-token-type 'search-backward) |
| 483 | (setq ex-token (buffer-substring (1- (point)) (mark t)))) |
| 484 | ((looking-at ",") |
| 485 | (forward-char 1) |
| 486 | (setq ex-token-type 'comma)) |
| 487 | ((looking-at ";") |
| 488 | (forward-char 1) |
| 489 | (setq ex-token-type 'semi-colon)) |
| 490 | ((looking-at "[!=><&~]") |
| 491 | (setq ex-token-type 'command) |
| 492 | (setq ex-token (char-to-string (following-char))) |
| 493 | (forward-char 1)) |
| 494 | ((looking-at "'") |
| 495 | (setq ex-token-type 'goto-mark) |
| 496 | (forward-char 1) |
| 497 | (cond ((looking-at "'") (setq ex-token nil)) |
| 498 | ((looking-at "[a-z]") (setq ex-token (following-char))) |
| 499 | (t (error "Marks are ' and a-z"))) |
| 500 | (forward-char 1)) |
| 501 | ((looking-at "\n") |
| 502 | (setq ex-token-type 'end-mark) |
| 503 | (setq ex-token "goto")) |
| 504 | (t |
| 505 | (error viper-BadExCommand)))))) |
| 506 | |
| 507 | ;; Reads Ex command. Tries to determine if it has to exit because command |
| 508 | ;; is complete or invalid. If not, keeps reading command. |
| 509 | (defun ex-cmd-read-exit () |
| 510 | (interactive) |
| 511 | (setq viper-incomplete-ex-cmd t) |
| 512 | (let ((quit-regex1 (concat |
| 513 | "\\(" "set[ \t]*" |
| 514 | "\\|" "edit[ \t]*" |
| 515 | "\\|" "[nN]ext[ \t]*" |
| 516 | "\\|" "unm[ \t]*" |
| 517 | "\\|" "^[ \t]*rep" |
| 518 | "\\)")) |
| 519 | (quit-regex2 (concat |
| 520 | "[a-zA-Z][ \t]*" |
| 521 | "\\(" "!" "\\|" ">>" |
| 522 | "\\|" "\\+[0-9]+" |
| 523 | "\\)" |
| 524 | "*[ \t]*$")) |
| 525 | (stay-regex (concat |
| 526 | "\\(" "^[ \t]*$" |
| 527 | "\\|" "[?/].*" |
| 528 | "\\|" "[ktgjmsz][ \t]*$" |
| 529 | "\\|" "^[ \t]*ab.*" |
| 530 | "\\|" "tr[ansfer \t]*" |
| 531 | "\\|" "sr[ \t]*" |
| 532 | "\\|" "mo.*" |
| 533 | "\\|" "^[ \t]*k?ma[^p]*" |
| 534 | "\\|" "^[ \t]*fi.*" |
| 535 | "\\|" "v?gl.*" |
| 536 | "\\|" "[vg][ \t]*$" |
| 537 | "\\|" "jo.*" |
| 538 | "\\|" "^[ \t]*ta.*" |
| 539 | "\\|" "^[ \t]*una.*" |
| 540 | ;; don't jump up in :s command |
| 541 | "\\|" "^[ \t]*\\([`'][a-z]\\|[.,%]\\)*[ \t]*su.*" |
| 542 | "\\|" "^[ \t]*\\([`'][a-z]\\|[.,%]\\)*[ \t]*s[^a-z].*" |
| 543 | "\\|" "['`][a-z][ \t]*" |
| 544 | ;; r! assumes that the next one is a shell command |
| 545 | "\\|" "\\(r\\|re\\|rea\\|read\\)[ \t]*!" |
| 546 | ;; w ! assumes that the next one is a shell command |
| 547 | "\\|" "\\(w\\|wr\\|wri\\|writ.?\\)[ \t]+!" |
| 548 | "\\|" "![ \t]*[a-zA-Z].*" |
| 549 | "\\)" |
| 550 | "!*"))) |
| 551 | |
| 552 | (save-window-excursion ;; put cursor at the end of the Ex working buffer |
| 553 | (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name)) |
| 554 | (set-buffer viper-ex-work-buf) |
| 555 | (goto-char (point-max))) |
| 556 | (cond ((viper-looking-back quit-regex1) (exit-minibuffer)) |
| 557 | ((viper-looking-back stay-regex) (insert " ")) |
| 558 | ((viper-looking-back quit-regex2) (exit-minibuffer)) |
| 559 | (t (insert " "))))) |
| 560 | |
| 561 | ;; complete Ex command |
| 562 | (defun ex-cmd-complete () |
| 563 | (interactive) |
| 564 | (let (save-pos dist compl-list string-to-complete completion-result) |
| 565 | |
| 566 | (save-excursion |
| 567 | (setq dist (skip-chars-backward "[a-zA-Z!=>&~]") |
| 568 | save-pos (point))) |
| 569 | |
| 570 | (if (or (= dist 0) |
| 571 | (viper-looking-back "\\([ \t]*['`][ \t]*[a-z]*\\)") |
| 572 | (viper-looking-back |
| 573 | "^[ \t]*[a-zA-Z!=>&~][ \t]*[/?]*[ \t]+[a-zA-Z!=>&~]+")) |
| 574 | ;; Preceding characters are not the ones allowed in an Ex command |
| 575 | ;; or we have typed past command name. |
| 576 | ;; Note: we didn't do parsing, so there can be surprises. |
| 577 | (if (or (viper-looking-back "[a-zA-Z!=>&~][ \t]*[/?]*[ \t]*") |
| 578 | (viper-looking-back "\\([ \t]*['`][ \t]*[a-z]*\\)") |
| 579 | (looking-at "[^ \t\n\C-m]")) |
| 580 | nil |
| 581 | (with-output-to-temp-buffer "*Completions*" |
| 582 | (display-completion-list |
| 583 | (viper-alist-to-list ex-token-alist)))) |
| 584 | ;; Preceding chars may be part of a command name |
| 585 | (setq string-to-complete (buffer-substring save-pos (point))) |
| 586 | (setq completion-result |
| 587 | (try-completion string-to-complete ex-token-alist)) |
| 588 | |
| 589 | (cond ((eq completion-result t) ; exact match--do nothing |
| 590 | (viper-tmp-insert-at-eob " (Sole completion)")) |
| 591 | ((eq completion-result nil) |
| 592 | (viper-tmp-insert-at-eob " (No match)")) |
| 593 | (t ;; partial completion |
| 594 | (goto-char save-pos) |
| 595 | (delete-region (point) (point-max)) |
| 596 | (insert completion-result) |
| 597 | (let (case-fold-search) |
| 598 | (setq compl-list |
| 599 | (viper-filter-alist (concat "^" completion-result) |
| 600 | ex-token-alist))) |
| 601 | (if (> (length compl-list) 1) |
| 602 | (with-output-to-temp-buffer "*Completions*" |
| 603 | (display-completion-list |
| 604 | (viper-alist-to-list (reverse compl-list))))))) |
| 605 | ))) |
| 606 | |
| 607 | |
| 608 | ;; Read Ex commands |
| 609 | ;; ARG is a prefix argument. If given, the ex command runs on the region |
| 610 | ;;(without the user having to specify the address :a,b |
| 611 | ;; STRING is the command to execute. If nil, then Viper asks you to enter the |
| 612 | ;; command. |
| 613 | (defun viper-ex (arg &optional string) |
| 614 | (interactive "P") |
| 615 | (or string |
| 616 | (setq ex-g-flag nil |
| 617 | ex-g-variant nil)) |
| 618 | (let* ((map (copy-keymap minibuffer-local-map)) |
| 619 | (address nil) |
| 620 | (cont t) |
| 621 | (dot (point)) |
| 622 | reg-beg-line reg-end-line |
| 623 | reg-beg reg-end |
| 624 | initial-str |
| 625 | prev-token-type com-str) |
| 626 | (viper-add-keymap viper-ex-cmd-map map) |
| 627 | |
| 628 | (if arg |
| 629 | (progn |
| 630 | (viper-enlarge-region (mark t) (point)) |
| 631 | (if (> (point) (mark t)) |
| 632 | (setq reg-beg (mark t) |
| 633 | reg-end (point)) |
| 634 | (setq reg-end (mark t) |
| 635 | reg-beg (point))) |
| 636 | (save-excursion |
| 637 | (goto-char reg-beg) |
| 638 | (setq reg-beg-line (1+ (count-lines (point-min) (point))) |
| 639 | reg-end-line |
| 640 | (+ reg-beg-line (count-lines reg-beg reg-end) -1))))) |
| 641 | (if reg-beg-line |
| 642 | (setq initial-str (format "%d,%d" reg-beg-line reg-end-line))) |
| 643 | |
| 644 | (setq com-str |
| 645 | (if string |
| 646 | (concat initial-str string) |
| 647 | (viper-read-string-with-history |
| 648 | ":" |
| 649 | initial-str |
| 650 | 'viper-ex-history |
| 651 | ;; no default when working on region |
| 652 | (if initial-str |
| 653 | nil |
| 654 | (car viper-ex-history)) |
| 655 | map |
| 656 | (if initial-str |
| 657 | " [Type command to execute on current region]")))) |
| 658 | (save-window-excursion |
| 659 | ;; just a precaution |
| 660 | (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name)) |
| 661 | (set-buffer viper-ex-work-buf) |
| 662 | (delete-region (point-min) (point-max)) |
| 663 | (insert com-str "\n") |
| 664 | (goto-char (point-min))) |
| 665 | (setq ex-token-type nil |
| 666 | ex-addresses nil) |
| 667 | (while cont |
| 668 | (viper-get-ex-token) |
| 669 | (cond ((memq ex-token-type '(command end-mark)) |
| 670 | (if address (setq ex-addresses (cons address ex-addresses))) |
| 671 | (viper-deactivate-mark) |
| 672 | (let ((cmd (ex-cmd-assoc ex-token ex-token-alist))) |
| 673 | (if (null cmd) |
| 674 | (error "`%s': %s" ex-token viper-BadExCommand)) |
| 675 | (ex-cmd-execute cmd) |
| 676 | (if (or (ex-cmd-is-mashed-with-args cmd) |
| 677 | (ex-cmd-is-one-letter cmd)) |
| 678 | (setq cont nil) |
| 679 | (save-excursion |
| 680 | (save-window-excursion |
| 681 | (setq viper-ex-work-buf |
| 682 | (get-buffer-create viper-ex-work-buf-name)) |
| 683 | (set-buffer viper-ex-work-buf) |
| 684 | (skip-chars-forward " \t") |
| 685 | (cond ((looking-at "|") |
| 686 | (forward-char 1)) |
| 687 | ((looking-at "\n") |
| 688 | (setq cont nil)) |
| 689 | (t (error |
| 690 | "`%s': %s" ex-token viper-SpuriousText))) |
| 691 | ))) |
| 692 | )) |
| 693 | ((eq ex-token-type 'non-command) |
| 694 | (error "`%s': %s" ex-token viper-BadExCommand)) |
| 695 | ((eq ex-token-type 'whole) |
| 696 | (setq address nil) |
| 697 | (setq ex-addresses |
| 698 | (if ex-addresses |
| 699 | (cons (point-max) ex-addresses) |
| 700 | (cons (point-max) (cons (point-min) ex-addresses))))) |
| 701 | ((eq ex-token-type 'comma) |
| 702 | (if (eq prev-token-type 'whole) |
| 703 | (setq address (point-min))) |
| 704 | (setq ex-addresses |
| 705 | (cons (if (null address) (point) address) ex-addresses))) |
| 706 | ((eq ex-token-type 'semi-colon) |
| 707 | (if (eq prev-token-type 'whole) |
| 708 | (setq address (point-min))) |
| 709 | (if address (setq dot address)) |
| 710 | (setq ex-addresses |
| 711 | (cons (if (null address) (point) address) ex-addresses))) |
| 712 | (t (let ((ans (viper-get-ex-address-subr address dot))) |
| 713 | (if ans (setq address ans))))) |
| 714 | (setq prev-token-type ex-token-type)))) |
| 715 | |
| 716 | |
| 717 | ;; Get a regular expression and set `ex-variant', if found |
| 718 | ;; Viper doesn't parse the substitution or search patterns. |
| 719 | ;; In particular, it doesn't expand ~ into the last substitution. |
| 720 | (defun viper-get-ex-pat () |
| 721 | (save-window-excursion |
| 722 | (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name)) |
| 723 | (set-buffer viper-ex-work-buf) |
| 724 | (skip-chars-forward " \t") |
| 725 | (if (looking-at "!") |
| 726 | ;; this is probably a variant command r! |
| 727 | (progn |
| 728 | (setq ex-g-variant (not ex-g-variant) |
| 729 | ex-g-flag (not ex-g-flag)) |
| 730 | (forward-char 1) |
| 731 | (skip-chars-forward " \t"))) |
| 732 | (let ((c (following-char))) |
| 733 | (cond ((string-match "[0-9A-Za-z]" (format "%c" c)) |
| 734 | (error |
| 735 | "Global regexp must be inside matching non-alphanumeric chars")) |
| 736 | ((= c ??) (error "`?' is not an allowed pattern delimiter here"))) |
| 737 | (if (looking-at "[^\\\\\n]") |
| 738 | (progn |
| 739 | (forward-char 1) |
| 740 | (set-mark (point)) |
| 741 | (let ((cont t)) |
| 742 | ;; the use of eobp instead of eolp permits the use of newlines in |
| 743 | ;; pat2 in s/pat1/pat2/ |
| 744 | (while (and (not (eobp)) cont) |
| 745 | (if (not (re-search-forward (format "[^%c]*%c" c c) nil t)) |
| 746 | (if (member ex-token '("global" "vglobal")) |
| 747 | (error "Missing closing delimiter for global regexp") |
| 748 | (goto-char (point-max)))) |
| 749 | (if (not (viper-looking-back |
| 750 | (format "[^\\\\]\\(\\\\\\\\\\)*\\\\%c" c))) |
| 751 | (setq cont nil) |
| 752 | ;; we are at an escaped delimiter: unescape it and continue |
| 753 | (delete-char -2) |
| 754 | (insert c) |
| 755 | (if (eolp) |
| 756 | ;; if at eol, exit loop and go to next line |
| 757 | ;; later, delim will be inserted at the end |
| 758 | (progn |
| 759 | (setq cont nil) |
| 760 | (forward-char)))) |
| 761 | )) |
| 762 | (setq ex-token |
| 763 | (if (= (mark t) (point)) "" |
| 764 | (buffer-substring (1- (point)) (mark t)))) |
| 765 | (backward-char 1) |
| 766 | ;; if the user didn't insert the final pattern delimiter, we're |
| 767 | ;; at newline now. In this case, insert the initial delimiter |
| 768 | ;; specified in variable c |
| 769 | (if (eolp) |
| 770 | (progn |
| 771 | (insert c) |
| 772 | (backward-char 1))) |
| 773 | ) |
| 774 | (setq ex-token nil)) |
| 775 | c))) |
| 776 | |
| 777 | ;; Get an Ex option g or c |
| 778 | (defun viper-get-ex-opt-gc (c) |
| 779 | (save-window-excursion |
| 780 | (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name)) |
| 781 | (set-buffer viper-ex-work-buf) |
| 782 | (if (looking-at (format "%c" c)) (forward-char 1)) |
| 783 | (skip-chars-forward " \t") |
| 784 | (cond ((looking-at "g") |
| 785 | (setq ex-token "g") |
| 786 | (forward-char 1) |
| 787 | t) |
| 788 | ((looking-at "c") |
| 789 | (setq ex-token "c") |
| 790 | (forward-char 1) |
| 791 | t) |
| 792 | (t nil)))) |
| 793 | |
| 794 | ;; Compute default addresses. WHOLE-FLAG means use the whole buffer |
| 795 | (defun viper-default-ex-addresses (&optional whole-flag) |
| 796 | (cond ((null ex-addresses) |
| 797 | (setq ex-addresses |
| 798 | (if whole-flag |
| 799 | (list (point-max) (point-min)) |
| 800 | (list (point) (point))))) |
| 801 | ((null (cdr ex-addresses)) |
| 802 | (setq ex-addresses |
| 803 | (cons (car ex-addresses) ex-addresses))))) |
| 804 | |
| 805 | ;; Get an ex-address as a marker and set ex-flag if a flag is found |
| 806 | (defun viper-get-ex-address () |
| 807 | (let ((address (point-marker)) |
| 808 | (cont t)) |
| 809 | (setq ex-token "") |
| 810 | (setq ex-flag nil) |
| 811 | (while cont |
| 812 | (viper-get-ex-token) |
| 813 | (cond ((eq ex-token-type 'command) |
| 814 | (if (member ex-token '("print" "list" "#")) |
| 815 | (progn |
| 816 | (setq ex-flag t |
| 817 | cont nil)) |
| 818 | (error "Address expected in this Ex command"))) |
| 819 | ((eq ex-token-type 'end-mark) |
| 820 | (setq cont nil)) |
| 821 | ((eq ex-token-type 'whole) |
| 822 | (error "Trailing address expected")) |
| 823 | ((eq ex-token-type 'comma) |
| 824 | (error "`%s': %s" ex-token viper-SpuriousText)) |
| 825 | (t (let ((ans (viper-get-ex-address-subr address (point-marker)))) |
| 826 | (if ans (setq address ans)))))) |
| 827 | address)) |
| 828 | |
| 829 | ;; Returns an address as a point |
| 830 | (defun viper-get-ex-address-subr (old-address dot) |
| 831 | (let ((address nil)) |
| 832 | (if (null old-address) (setq old-address dot)) |
| 833 | (cond ((eq ex-token-type 'dot) |
| 834 | (setq address dot)) |
| 835 | ((eq ex-token-type 'add-number) |
| 836 | (save-excursion |
| 837 | (goto-char old-address) |
| 838 | (forward-line (if (= old-address 0) (1- ex-token) ex-token)) |
| 839 | (setq address (point-marker)))) |
| 840 | ((eq ex-token-type 'sub-number) |
| 841 | (save-excursion |
| 842 | (goto-char old-address) |
| 843 | (forward-line (- ex-token)) |
| 844 | (setq address (point-marker)))) |
| 845 | ((eq ex-token-type 'abs-number) |
| 846 | (save-excursion |
| 847 | (goto-char (point-min)) |
| 848 | (if (= ex-token 0) (setq address 0) |
| 849 | (forward-line (1- ex-token)) |
| 850 | (setq address (point-marker))))) |
| 851 | ((eq ex-token-type 'end) |
| 852 | (save-excursion |
| 853 | (goto-char (1- (point-max))) |
| 854 | (setq address (point-marker)))) |
| 855 | ((eq ex-token-type 'plus) t) ; do nothing |
| 856 | ((eq ex-token-type 'minus) t) ; do nothing |
| 857 | ((eq ex-token-type 'search-forward) |
| 858 | (save-excursion |
| 859 | (ex-search-address t) |
| 860 | (setq address (point-marker)))) |
| 861 | ((eq ex-token-type 'search-backward) |
| 862 | (save-excursion |
| 863 | (ex-search-address nil) |
| 864 | (setq address (point-marker)))) |
| 865 | ((eq ex-token-type 'goto-mark) |
| 866 | (save-excursion |
| 867 | (if (null ex-token) |
| 868 | (exchange-point-and-mark) |
| 869 | (goto-char |
| 870 | (viper-register-to-point |
| 871 | (viper-int-to-char (1+ (- ex-token ?a))) 'enforce-buffer))) |
| 872 | (setq address (point-marker))))) |
| 873 | address)) |
| 874 | |
| 875 | |
| 876 | ;; Search pattern and set address |
| 877 | ;; Doesn't wrap around. Should it? |
| 878 | (defun ex-search-address (forward) |
| 879 | (if (string= ex-token "") |
| 880 | (if (null viper-s-string) |
| 881 | (error viper-NoPrevSearch) |
| 882 | (setq ex-token viper-s-string)) |
| 883 | (setq viper-s-string ex-token)) |
| 884 | (if forward |
| 885 | (progn |
| 886 | (forward-line 1) |
| 887 | (re-search-forward ex-token)) |
| 888 | (forward-line -1) |
| 889 | (re-search-backward ex-token))) |
| 890 | |
| 891 | ;; Get a buffer name and set `ex-count' and `ex-flag' if found |
| 892 | (defun viper-get-ex-buffer () |
| 893 | (setq ex-buffer nil) |
| 894 | (setq ex-count nil) |
| 895 | (setq ex-flag nil) |
| 896 | (save-window-excursion |
| 897 | (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name)) |
| 898 | (set-buffer viper-ex-work-buf) |
| 899 | (skip-chars-forward " \t") |
| 900 | (if (looking-at "[a-zA-Z]") |
| 901 | (progn |
| 902 | (setq ex-buffer (following-char)) |
| 903 | (forward-char 1) |
| 904 | (skip-chars-forward " \t"))) |
| 905 | (if (looking-at "[0-9]") |
| 906 | (progn |
| 907 | (set-mark (point)) |
| 908 | (re-search-forward "[0-9][0-9]*") |
| 909 | (setq ex-count (string-to-number (buffer-substring (point) (mark t)))) |
| 910 | (skip-chars-forward " \t"))) |
| 911 | (if (looking-at "[pl#]") |
| 912 | (progn |
| 913 | (setq ex-flag t) |
| 914 | (forward-char 1))) |
| 915 | (if (not (looking-at "[\n|]")) |
| 916 | (error "`%s': %s" ex-token viper-SpuriousText)))) |
| 917 | |
| 918 | (defun viper-get-ex-count () |
| 919 | (setq ex-variant nil |
| 920 | ex-count nil |
| 921 | ex-flag nil) |
| 922 | (save-window-excursion |
| 923 | (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name)) |
| 924 | (set-buffer viper-ex-work-buf) |
| 925 | (skip-chars-forward " \t") |
| 926 | (if (looking-at "!") |
| 927 | (progn |
| 928 | (setq ex-variant t) |
| 929 | (forward-char 1))) |
| 930 | (skip-chars-forward " \t") |
| 931 | (if (looking-at "[0-9]") |
| 932 | (progn |
| 933 | (set-mark (point)) |
| 934 | (re-search-forward "[0-9][0-9]*") |
| 935 | (setq ex-count (string-to-number (buffer-substring (point) (mark t)))) |
| 936 | (skip-chars-forward " \t"))) |
| 937 | (if (looking-at "[pl#]") |
| 938 | (progn |
| 939 | (setq ex-flag t) |
| 940 | (forward-char 1))) |
| 941 | (if (not (looking-at "[\n|]")) |
| 942 | (error "`%s': %s" |
| 943 | (buffer-substring |
| 944 | (point-min) (1- (point-max))) viper-BadExCommand)))) |
| 945 | |
| 946 | ;; Expand \% and \# in ex command |
| 947 | (defun ex-expand-filsyms (cmd buf) |
| 948 | (let (cf pf ret) |
| 949 | (with-current-buffer buf |
| 950 | (setq cf buffer-file-name) |
| 951 | (setq pf (ex-next nil t))) ; this finds alternative file name |
| 952 | (if (and (null cf) (string-match "[^\\]%\\|\\`%" cmd)) |
| 953 | (error "No current file to substitute for `%%'")) |
| 954 | (if (and (null pf) (string-match "[^\\]#\\|\\`#" cmd)) |
| 955 | (error "No alternate file to substitute for `#'")) |
| 956 | (with-current-buffer (get-buffer-create viper-ex-tmp-buf-name) |
| 957 | (erase-buffer) |
| 958 | (insert cmd) |
| 959 | (goto-char (point-min)) |
| 960 | (while (re-search-forward "%\\|#" nil t) |
| 961 | (let ((data (match-data)) |
| 962 | (char (buffer-substring (match-beginning 0) (match-end 0)))) |
| 963 | (if (viper-looking-back (concat "\\\\" char)) |
| 964 | (replace-match char) |
| 965 | (store-match-data data) |
| 966 | (if (string= char "%") |
| 967 | (replace-match cf) |
| 968 | (replace-match pf))))) |
| 969 | (end-of-line) |
| 970 | (setq ret (buffer-substring (point-min) (point))) |
| 971 | (message "%s" ret)) |
| 972 | ret)) |
| 973 | |
| 974 | ;; Get a file name and set `ex-variant', `ex-append' and `ex-offset' if found |
| 975 | ;; If it is r!, then get the command name and whatever args |
| 976 | (defun viper-get-ex-file () |
| 977 | (let (prompt) |
| 978 | (setq ex-file nil |
| 979 | ex-variant nil |
| 980 | ex-append nil |
| 981 | ex-offset nil |
| 982 | ex-cmdfile nil |
| 983 | ex-cmdfile-args "") |
| 984 | (save-excursion |
| 985 | (with-current-buffer (setq viper-ex-work-buf |
| 986 | (get-buffer-create viper-ex-work-buf-name)) |
| 987 | (skip-chars-forward " \t") |
| 988 | (if (looking-at "!") |
| 989 | (if (and (not (viper-looking-back "[ \t]")) |
| 990 | ;; read doesn't have a corresponding :r! form, so ! is |
| 991 | ;; immediately interpreted as a shell command. |
| 992 | (not (string= ex-token "read"))) |
| 993 | (progn |
| 994 | (setq ex-variant t) |
| 995 | (forward-char 1) |
| 996 | (skip-chars-forward " \t")) |
| 997 | (setq ex-cmdfile t) |
| 998 | (forward-char 1) |
| 999 | (skip-chars-forward " \t"))) |
| 1000 | (if (looking-at ">>") |
| 1001 | (progn |
| 1002 | (setq ex-append t |
| 1003 | ex-variant t) |
| 1004 | (forward-char 2) |
| 1005 | (skip-chars-forward " \t"))) |
| 1006 | (if (looking-at "+") |
| 1007 | (progn |
| 1008 | (forward-char 1) |
| 1009 | (set-mark (point)) |
| 1010 | (re-search-forward "[ \t\n]") |
| 1011 | (backward-char 1) |
| 1012 | (setq ex-offset (buffer-substring (point) (mark t))) |
| 1013 | (forward-char 1) |
| 1014 | (skip-chars-forward " \t"))) |
| 1015 | ;; this takes care of :r, :w, etc., when they get file names |
| 1016 | ;; from the history list |
| 1017 | (if (member ex-token '("read" "write" "edit" "visual" "next")) |
| 1018 | (progn |
| 1019 | (setq ex-file (buffer-substring (point) (1- (point-max)))) |
| 1020 | (setq ex-file |
| 1021 | ;; For :e, match multiple non-white strings separated |
| 1022 | ;; by white. For others, find the first non-white string |
| 1023 | (if (string-match |
| 1024 | (if (string= ex-token "edit") |
| 1025 | "[^ \t\n]+\\([ \t]+[^ \t\n]+\\)*" |
| 1026 | "[^ \t\n]+") |
| 1027 | ex-file) |
| 1028 | (progn |
| 1029 | ;; if file name comes from history, don't leave |
| 1030 | ;; minibuffer when the user types space |
| 1031 | (setq viper-incomplete-ex-cmd nil) |
| 1032 | (setq ex-cmdfile-args |
| 1033 | (substring ex-file (match-end 0) nil)) |
| 1034 | ;; this must be the last clause in this progn |
| 1035 | (substring ex-file (match-beginning 0) (match-end 0)) |
| 1036 | ) |
| 1037 | "")) |
| 1038 | ;; this leaves only the command name in the work area |
| 1039 | ;; file names are gone |
| 1040 | (delete-region (point) (1- (point-max))) |
| 1041 | )) |
| 1042 | (goto-char (point-max)) |
| 1043 | (skip-chars-backward " \t\n") |
| 1044 | (setq prompt (buffer-substring (point-min) (point))) |
| 1045 | )) |
| 1046 | |
| 1047 | (setq viper-last-ex-prompt prompt) |
| 1048 | |
| 1049 | ;; If we just finished reading command, redisplay prompt |
| 1050 | (if viper-incomplete-ex-cmd |
| 1051 | (setq ex-file (viper-ex-read-file-name (format ":%s " prompt))) |
| 1052 | ;; file was typed in-line |
| 1053 | (setq ex-file (or ex-file ""))) |
| 1054 | )) |
| 1055 | |
| 1056 | |
| 1057 | ;; Completes file name or exits minibuffer. If Ex command accepts multiple |
| 1058 | ;; file names, arranges to re-enter the minibuffer. |
| 1059 | (defun viper-complete-filename-or-exit () |
| 1060 | (interactive) |
| 1061 | (setq viper-keep-reading-filename t) |
| 1062 | ;; don't exit if directory---ex-commands don't |
| 1063 | (cond ((ex-cmd-accepts-multiple-files-p ex-token) (exit-minibuffer)) |
| 1064 | ;; apparently the argument to an Ex command is |
| 1065 | ;; supposed to be a shell command |
| 1066 | ((viper-looking-back "^[ \t]*!.*") |
| 1067 | (setq ex-cmdfile t) |
| 1068 | (insert " ")) |
| 1069 | (t |
| 1070 | (setq ex-cmdfile nil) |
| 1071 | (minibuffer-complete-word)))) |
| 1072 | |
| 1073 | (defun viper-handle-! () |
| 1074 | (interactive) |
| 1075 | (if (and (string= |
| 1076 | (buffer-string) (viper-abbreviate-file-name default-directory)) |
| 1077 | (member ex-token '("read" "write"))) |
| 1078 | (erase-buffer)) |
| 1079 | (insert "!")) |
| 1080 | |
| 1081 | (defun ex-cmd-accepts-multiple-files-p (token) |
| 1082 | (member token '("edit" "next" "Next"))) |
| 1083 | |
| 1084 | ;; Read file name from the minibuffer in an ex command. |
| 1085 | ;; If user doesn't enter anything, then "" is returned, i.e., the |
| 1086 | ;; prompt-directory is not returned. |
| 1087 | (defun viper-ex-read-file-name (prompt) |
| 1088 | (let* ((str "") |
| 1089 | (minibuffer-local-completion-map |
| 1090 | (copy-keymap minibuffer-local-completion-map)) |
| 1091 | beg end cont val) |
| 1092 | |
| 1093 | (viper-add-keymap ex-read-filename-map |
| 1094 | (if (featurep 'emacs) |
| 1095 | minibuffer-local-completion-map |
| 1096 | read-file-name-map)) |
| 1097 | |
| 1098 | (setq cont (setq viper-keep-reading-filename t)) |
| 1099 | (while cont |
| 1100 | (setq viper-keep-reading-filename nil |
| 1101 | val (read-file-name (concat prompt str) nil default-directory)) |
| 1102 | (setq val (expand-file-name val)) |
| 1103 | (if (and (string-match " " val) |
| 1104 | (ex-cmd-accepts-multiple-files-p ex-token)) |
| 1105 | (setq val (concat "\"" val "\""))) |
| 1106 | (setq str (concat str (if (equal val "") "" " ") |
| 1107 | val (if (equal val "") "" " "))) |
| 1108 | |
| 1109 | ;; Only edit, next, and Next commands accept multiple files. |
| 1110 | ;; viper-keep-reading-filename is set in the anonymous function that is |
| 1111 | ;; bound to " " in ex-read-filename-map. |
| 1112 | (setq cont (and viper-keep-reading-filename |
| 1113 | (ex-cmd-accepts-multiple-files-p ex-token))) |
| 1114 | ) |
| 1115 | |
| 1116 | (setq beg (string-match "[^ \t]" str) ; delete leading blanks |
| 1117 | end (string-match "[ \t]*$" str)) ; delete trailing blanks |
| 1118 | (if (member ex-token '("read" "write")) |
| 1119 | (if (string-match "[\t ]*!" str) |
| 1120 | ;; this is actually a shell command |
| 1121 | (progn |
| 1122 | (setq ex-cmdfile t) |
| 1123 | (setq beg (1+ beg)) |
| 1124 | (setq viper-last-ex-prompt |
| 1125 | (concat viper-last-ex-prompt " !"))))) |
| 1126 | (substring str (or beg 0) end))) |
| 1127 | |
| 1128 | |
| 1129 | (defun viper-undisplayed-files () |
| 1130 | (mapcar |
| 1131 | (lambda (b) |
| 1132 | (if (null (get-buffer-window b)) |
| 1133 | (let ((f (buffer-file-name b))) |
| 1134 | (if f f |
| 1135 | (if ex-cycle-through-non-files |
| 1136 | (let ((s (buffer-name b))) |
| 1137 | (if (string= " " (substring s 0 1)) |
| 1138 | nil |
| 1139 | s)) |
| 1140 | nil))) |
| 1141 | nil)) |
| 1142 | (buffer-list))) |
| 1143 | |
| 1144 | |
| 1145 | (defun ex-args () |
| 1146 | (let ((l (viper-undisplayed-files)) |
| 1147 | (args "") |
| 1148 | (file-count 1)) |
| 1149 | (while (not (null l)) |
| 1150 | (if (car l) |
| 1151 | (setq args (format "%s %d) %s\n" args file-count (car l)) |
| 1152 | file-count (1+ file-count))) |
| 1153 | (setq l (cdr l))) |
| 1154 | (if (string= args "") |
| 1155 | (message "All files are already displayed") |
| 1156 | (save-excursion |
| 1157 | (save-window-excursion |
| 1158 | (with-output-to-temp-buffer " *viper-info*" |
| 1159 | (princ "\n\nThese files are not displayed in any window.\n") |
| 1160 | (princ "\n=============\n") |
| 1161 | (princ args) |
| 1162 | (princ "\n=============\n") |
| 1163 | (princ "\nThe numbers can be given as counts to :next. ") |
| 1164 | (princ "\n\nPress any key to continue...\n\n")) |
| 1165 | (viper-read-event)))))) |
| 1166 | |
| 1167 | ;; Ex cd command. Default directory of this buffer changes |
| 1168 | (defun ex-cd () |
| 1169 | (viper-get-ex-file) |
| 1170 | (if (string= ex-file "") |
| 1171 | (setq ex-file "~")) |
| 1172 | (setq default-directory (file-name-as-directory (expand-file-name ex-file)))) |
| 1173 | |
| 1174 | ;; Ex copy and move command. DEL-FLAG means delete |
| 1175 | (defun ex-copy (del-flag) |
| 1176 | (viper-default-ex-addresses) |
| 1177 | (let ((address (viper-get-ex-address)) |
| 1178 | (end (car ex-addresses)) (beg (car (cdr ex-addresses)))) |
| 1179 | (goto-char end) |
| 1180 | (save-excursion |
| 1181 | (push-mark beg t) |
| 1182 | (viper-enlarge-region (mark t) (point)) |
| 1183 | (if del-flag |
| 1184 | (kill-region (point) (mark t)) |
| 1185 | (copy-region-as-kill (point) (mark t))) |
| 1186 | (if ex-flag |
| 1187 | (progn |
| 1188 | (with-output-to-temp-buffer " *copy text*" |
| 1189 | (princ |
| 1190 | (if (or del-flag ex-g-flag ex-g-variant) |
| 1191 | (current-kill 0) |
| 1192 | (buffer-substring (point) (mark t))))) |
| 1193 | (condition-case nil |
| 1194 | (progn |
| 1195 | (read-string "[Hit return to confirm] ") |
| 1196 | (save-excursion (kill-buffer " *copy text*"))) |
| 1197 | (quit (save-excursion (kill-buffer " *copy text*")) |
| 1198 | (signal 'quit nil)))))) |
| 1199 | (if (= address 0) |
| 1200 | (goto-char (point-min)) |
| 1201 | (goto-char address) |
| 1202 | (forward-line 1)) |
| 1203 | (insert (current-kill 0)))) |
| 1204 | |
| 1205 | ;; Ex delete command |
| 1206 | (defun ex-delete () |
| 1207 | (viper-default-ex-addresses) |
| 1208 | (viper-get-ex-buffer) |
| 1209 | (let ((end (car ex-addresses)) (beg (car (cdr ex-addresses)))) |
| 1210 | (if (> beg end) (error viper-FirstAddrExceedsSecond)) |
| 1211 | (save-excursion |
| 1212 | (viper-enlarge-region beg end) |
| 1213 | (exchange-point-and-mark) |
| 1214 | (if ex-count |
| 1215 | (progn |
| 1216 | (set-mark (point)) |
| 1217 | (forward-line (1- ex-count))) |
| 1218 | (set-mark end)) |
| 1219 | (viper-enlarge-region (point) (mark t)) |
| 1220 | (if ex-flag |
| 1221 | ;; show text to be deleted and ask for confirmation |
| 1222 | (progn |
| 1223 | (with-output-to-temp-buffer " *delete text*" |
| 1224 | (princ (buffer-substring (point) (mark t)))) |
| 1225 | (condition-case nil |
| 1226 | (read-string "[Hit return to confirm] ") |
| 1227 | (quit |
| 1228 | (save-excursion (kill-buffer " *delete text*")) |
| 1229 | (error "Viper bell"))) |
| 1230 | (save-excursion (kill-buffer " *delete text*"))) |
| 1231 | (if ex-buffer |
| 1232 | (cond ((viper-valid-register ex-buffer '(Letter)) |
| 1233 | (viper-append-to-register |
| 1234 | (downcase ex-buffer) (point) (mark t))) |
| 1235 | ((viper-valid-register ex-buffer) |
| 1236 | (copy-to-register ex-buffer (point) (mark t) nil)) |
| 1237 | (t (error viper-InvalidRegister ex-buffer)))) |
| 1238 | (kill-region (point) (mark t)))))) |
| 1239 | |
| 1240 | |
| 1241 | |
| 1242 | ;; Ex edit command |
| 1243 | ;; In Viper, `e' and `e!' behave identically. In both cases, the user is |
| 1244 | ;; asked if current buffer should really be discarded. |
| 1245 | ;; This command can take multiple file names. It replaces the current buffer |
| 1246 | ;; with the first file in its argument list |
| 1247 | (defun ex-edit (&optional file) |
| 1248 | (if (not file) |
| 1249 | (viper-get-ex-file)) |
| 1250 | (cond ((and (string= ex-file "") buffer-file-name) |
| 1251 | (setq ex-file (viper-abbreviate-file-name (buffer-file-name)))) |
| 1252 | ((string= ex-file "") |
| 1253 | (error viper-NoFileSpecified))) |
| 1254 | |
| 1255 | (let (msg do-edit) |
| 1256 | (if buffer-file-name |
| 1257 | (cond ((buffer-modified-p) |
| 1258 | (setq msg |
| 1259 | (format "Buffer %s is modified. Discard changes? " |
| 1260 | (buffer-name)) |
| 1261 | do-edit t)) |
| 1262 | ((not (verify-visited-file-modtime (current-buffer))) |
| 1263 | (setq msg |
| 1264 | (format "File %s changed on disk. Reread from disk? " |
| 1265 | buffer-file-name) |
| 1266 | do-edit t)) |
| 1267 | (t (setq do-edit nil)))) |
| 1268 | |
| 1269 | (if do-edit |
| 1270 | (if (yes-or-no-p msg) |
| 1271 | (progn |
| 1272 | (set-buffer-modified-p nil) |
| 1273 | (kill-buffer (current-buffer))) |
| 1274 | (message "Buffer %s was left intact" (buffer-name)))) |
| 1275 | ) ; let |
| 1276 | |
| 1277 | (if (null (setq file (get-file-buffer ex-file))) |
| 1278 | (progn |
| 1279 | ;; this also does shell-style globbing |
| 1280 | (ex-find-file |
| 1281 | ;; replace # and % with the previous/current file |
| 1282 | (ex-expand-filsyms ex-file (current-buffer))) |
| 1283 | (or (eq major-mode 'dired-mode) |
| 1284 | (viper-change-state-to-vi)) |
| 1285 | (goto-char (point-min))) |
| 1286 | (switch-to-buffer file)) |
| 1287 | (if ex-offset |
| 1288 | (progn |
| 1289 | (with-current-buffer (setq viper-ex-work-buf |
| 1290 | (get-buffer-create viper-ex-work-buf-name)) |
| 1291 | (delete-region (point-min) (point-max)) |
| 1292 | (insert ex-offset "\n") |
| 1293 | (goto-char (point-min))) |
| 1294 | (goto-char (viper-get-ex-address)) |
| 1295 | (beginning-of-line))) |
| 1296 | (ex-fixup-history viper-last-ex-prompt ex-file)) |
| 1297 | |
| 1298 | ;; Find-file FILESPEC if it appears to specify a single file. |
| 1299 | ;; Otherwise, assume that FILESPEC is a wildcard. |
| 1300 | ;; In this case, split it into substrings separated by newlines. |
| 1301 | ;; Each line is assumed to be a file name. |
| 1302 | (defun ex-find-file (filespec) |
| 1303 | (let ((nonstandard-filename-chars "[^-a-zA-Z0-9_./,~$\\]")) |
| 1304 | (cond ((file-exists-p filespec) (find-file filespec)) |
| 1305 | ((string-match nonstandard-filename-chars filespec) |
| 1306 | (mapcar 'find-file (funcall viper-glob-function filespec))) |
| 1307 | (t (find-file filespec))) |
| 1308 | )) |
| 1309 | |
| 1310 | |
| 1311 | ;; Ex global command |
| 1312 | ;; This is executed in response to: |
| 1313 | ;; :global "pattern" ex-command |
| 1314 | ;; :vglobal "pattern" ex-command |
| 1315 | ;; :global executes ex-command on all lines matching <pattern> |
| 1316 | ;; :vglobal executes ex-command on all lines that don't match <pattern> |
| 1317 | ;; |
| 1318 | ;; With VARIANT nil, this functions executes :global |
| 1319 | ;; With VARIANT t, executes :vglobal |
| 1320 | (defun ex-global (variant) |
| 1321 | (let ((gcommand ex-token)) |
| 1322 | (if (or ex-g-flag ex-g-variant) |
| 1323 | (error "`%s' within `global' is not allowed" gcommand) |
| 1324 | (if variant |
| 1325 | (setq ex-g-flag nil |
| 1326 | ex-g-variant t) |
| 1327 | (setq ex-g-flag t |
| 1328 | ex-g-variant nil))) |
| 1329 | (viper-get-ex-pat) |
| 1330 | (if (null ex-token) |
| 1331 | (error "`%s': Missing regular expression" gcommand))) |
| 1332 | |
| 1333 | (if (string= ex-token "") |
| 1334 | (if (null viper-s-string) |
| 1335 | (error viper-NoPrevSearch) |
| 1336 | (setq ex-g-pat viper-s-string)) |
| 1337 | (setq ex-g-pat ex-token |
| 1338 | viper-s-string ex-token)) |
| 1339 | (if (null ex-addresses) |
| 1340 | (setq ex-addresses (list (point-max) (point-min))) |
| 1341 | (viper-default-ex-addresses)) |
| 1342 | (setq ex-g-marks nil) |
| 1343 | (let ((mark-count 0) |
| 1344 | (end (car ex-addresses)) |
| 1345 | (beg (car (cdr ex-addresses))) |
| 1346 | com-str) |
| 1347 | (if (> beg end) (error viper-FirstAddrExceedsSecond)) |
| 1348 | (save-excursion |
| 1349 | (viper-enlarge-region beg end) |
| 1350 | (exchange-point-and-mark) |
| 1351 | (let ((cont t) (limit (point-marker))) |
| 1352 | (exchange-point-and-mark) |
| 1353 | ;; skip the last line if empty |
| 1354 | (beginning-of-line) |
| 1355 | (if (eobp) (viper-backward-char-carefully)) |
| 1356 | (while (and cont (not (bobp)) (>= (point) limit)) |
| 1357 | (beginning-of-line) |
| 1358 | (set-mark (point)) |
| 1359 | (end-of-line) |
| 1360 | (let ((found (re-search-backward ex-g-pat (mark t) t))) |
| 1361 | (if (or (and ex-g-flag found) |
| 1362 | (and ex-g-variant (not found))) |
| 1363 | (progn |
| 1364 | (end-of-line) |
| 1365 | (setq mark-count (1+ mark-count)) |
| 1366 | (setq ex-g-marks (cons (point-marker) ex-g-marks))))) |
| 1367 | (beginning-of-line) |
| 1368 | (if (bobp) (setq cont nil) |
| 1369 | (forward-line -1) |
| 1370 | (end-of-line))))) |
| 1371 | (with-current-buffer (setq viper-ex-work-buf |
| 1372 | (get-buffer-create viper-ex-work-buf-name)) |
| 1373 | ;; com-str is the command string, i.e., g/pattern/ or v/pattern' |
| 1374 | (setq com-str (buffer-substring (1+ (point)) (1- (point-max))))) |
| 1375 | (while ex-g-marks |
| 1376 | (goto-char (car ex-g-marks)) |
| 1377 | (viper-ex nil com-str) |
| 1378 | (setq mark-count (1- mark-count)) |
| 1379 | (setq ex-g-marks (cdr ex-g-marks))))) |
| 1380 | |
| 1381 | ;; Ex goto command |
| 1382 | (defun ex-goto () |
| 1383 | (if (null ex-addresses) |
| 1384 | (setq ex-addresses (cons (point) nil))) |
| 1385 | (push-mark (point) t) |
| 1386 | (goto-char (car ex-addresses)) |
| 1387 | (beginning-of-line) |
| 1388 | ) |
| 1389 | |
| 1390 | ;; Ex line commands. COM is join, shift-right or shift-left |
| 1391 | (defun ex-line (com) |
| 1392 | (viper-default-ex-addresses) |
| 1393 | (viper-get-ex-count) |
| 1394 | (let ((end (car ex-addresses)) (beg (car (cdr ex-addresses))) point) |
| 1395 | (if (> beg end) (error viper-FirstAddrExceedsSecond)) |
| 1396 | (save-excursion |
| 1397 | (viper-enlarge-region beg end) |
| 1398 | (exchange-point-and-mark) |
| 1399 | (if ex-count |
| 1400 | (progn |
| 1401 | (set-mark (point)) |
| 1402 | (forward-line ex-count))) |
| 1403 | (if ex-flag |
| 1404 | ;; show text to be joined and ask for confirmation |
| 1405 | (progn |
| 1406 | (with-output-to-temp-buffer " *join text*" |
| 1407 | (princ (buffer-substring (point) (mark t)))) |
| 1408 | (condition-case nil |
| 1409 | (progn |
| 1410 | (read-string "[Hit return to confirm] ") |
| 1411 | (ex-line-subr com (point) (mark t))) |
| 1412 | (quit (ding))) |
| 1413 | (save-excursion (kill-buffer " *join text*"))) |
| 1414 | (ex-line-subr com (point) (mark t))) |
| 1415 | (setq point (point))) |
| 1416 | (goto-char (1- point)) |
| 1417 | (beginning-of-line))) |
| 1418 | |
| 1419 | (defun ex-line-subr (com beg end) |
| 1420 | (cond ((string= com "join") |
| 1421 | (goto-char (min beg end)) |
| 1422 | (while (and (not (eobp)) (< (point) (max beg end))) |
| 1423 | (end-of-line) |
| 1424 | (if (and (<= (point) (max beg end)) (not (eobp))) |
| 1425 | (progn |
| 1426 | (forward-line 1) |
| 1427 | (delete-region (point) (1- (point))) |
| 1428 | (if (not ex-variant) (fixup-whitespace)))))) |
| 1429 | ((or (string= com "right") (string= com "left")) |
| 1430 | (indent-rigidly |
| 1431 | (min beg end) (max beg end) |
| 1432 | (if (string= com "right") viper-shift-width (- viper-shift-width))) |
| 1433 | (goto-char (max beg end)) |
| 1434 | (end-of-line) |
| 1435 | (viper-forward-char-carefully)))) |
| 1436 | |
| 1437 | |
| 1438 | ;; Ex mark command |
| 1439 | ;; Sets the mark to the current point. |
| 1440 | ;; If name is omitted, get the name straight from the work buffer." |
| 1441 | (defun ex-mark (&optional name) |
| 1442 | (let (char) |
| 1443 | (if (null ex-addresses) |
| 1444 | (setq ex-addresses |
| 1445 | (cons (point) nil))) |
| 1446 | (if name |
| 1447 | (if (eq 1 (length name)) |
| 1448 | (setq char (string-to-char name)) |
| 1449 | (error "`%s': Spurious text \"%s\" after mark name" |
| 1450 | name (substring name 1))) |
| 1451 | (with-current-buffer (setq viper-ex-work-buf |
| 1452 | (get-buffer-create viper-ex-work-buf-name)) |
| 1453 | (skip-chars-forward " \t") |
| 1454 | (if (looking-at "[a-z]") |
| 1455 | (progn |
| 1456 | (setq char (following-char)) |
| 1457 | (forward-char 1) |
| 1458 | (skip-chars-forward " \t") |
| 1459 | (if (not (looking-at "[\n|]")) |
| 1460 | (error "`%s': %s" ex-token viper-SpuriousText))) |
| 1461 | (error "`%s' requires a following letter" ex-token)))) |
| 1462 | (save-excursion |
| 1463 | (goto-char (car ex-addresses)) |
| 1464 | (point-to-register (viper-int-to-char (1+ (- char ?a))))))) |
| 1465 | |
| 1466 | |
| 1467 | |
| 1468 | ;; Alternate file is the file next to the first one in the buffer ring |
| 1469 | (defun ex-next (cycle-other-window &optional find-alt-file) |
| 1470 | (catch 'ex-edit |
| 1471 | (let (count l) |
| 1472 | (if (not find-alt-file) |
| 1473 | (progn |
| 1474 | (viper-get-ex-file) |
| 1475 | (if (or (char-or-string-p ex-offset) |
| 1476 | (and (not (string= "" ex-file)) |
| 1477 | (not (string-match "^[0-9]+$" ex-file)))) |
| 1478 | (progn |
| 1479 | (ex-edit t) |
| 1480 | (throw 'ex-edit nil)) |
| 1481 | (setq count (string-to-number ex-file)) |
| 1482 | (if (= count 0) (setq count 1)) |
| 1483 | (if (< count 0) (error "Usage: `next <count>' (count >= 0)")))) |
| 1484 | (setq count 1)) |
| 1485 | (setq l (viper-undisplayed-files)) |
| 1486 | (while (> count 0) |
| 1487 | (while (and (not (null l)) (null (car l))) |
| 1488 | (setq l (cdr l))) |
| 1489 | (setq count (1- count)) |
| 1490 | (if (> count 0) |
| 1491 | (setq l (cdr l)))) |
| 1492 | (if find-alt-file (car l) |
| 1493 | (progn |
| 1494 | (if (and (car l) (get-file-buffer (car l))) |
| 1495 | (let* ((w (if cycle-other-window |
| 1496 | (get-lru-window) (selected-window))) |
| 1497 | (b (window-buffer w))) |
| 1498 | (set-window-buffer w (get-file-buffer (car l))) |
| 1499 | (bury-buffer b) |
| 1500 | ;; this puts "next <count>" in the ex-command history |
| 1501 | (ex-fixup-history viper-last-ex-prompt ex-file)) |
| 1502 | (error "Not that many undisplayed files"))))))) |
| 1503 | |
| 1504 | |
| 1505 | (defun ex-next-related-buffer (direction &optional no-recursion) |
| 1506 | |
| 1507 | (viper-ring-rotate1 viper-related-files-and-buffers-ring direction) |
| 1508 | |
| 1509 | (let ((file-or-buffer-name |
| 1510 | (viper-current-ring-item viper-related-files-and-buffers-ring)) |
| 1511 | (old-ring viper-related-files-and-buffers-ring) |
| 1512 | (old-win (selected-window)) |
| 1513 | skip-rest buf wind) |
| 1514 | |
| 1515 | (or (and (ring-p viper-related-files-and-buffers-ring) |
| 1516 | (> (ring-length viper-related-files-and-buffers-ring) 0)) |
| 1517 | (error "This buffer has no related files or buffers")) |
| 1518 | |
| 1519 | (or (stringp file-or-buffer-name) |
| 1520 | (error |
| 1521 | "File and buffer names must be strings, %S" file-or-buffer-name)) |
| 1522 | |
| 1523 | (setq buf (cond ((get-buffer file-or-buffer-name)) |
| 1524 | ((file-exists-p file-or-buffer-name) |
| 1525 | (find-file-noselect file-or-buffer-name)) |
| 1526 | )) |
| 1527 | |
| 1528 | (if (not (viper-buffer-live-p buf)) |
| 1529 | (error "Didn't find buffer %S or file %S" |
| 1530 | file-or-buffer-name |
| 1531 | (viper-abbreviate-file-name |
| 1532 | (expand-file-name file-or-buffer-name)))) |
| 1533 | |
| 1534 | (if (equal buf (current-buffer)) |
| 1535 | (or no-recursion |
| 1536 | ;; try again |
| 1537 | (progn |
| 1538 | (setq skip-rest t) |
| 1539 | (ex-next-related-buffer direction 'norecursion)))) |
| 1540 | |
| 1541 | (if skip-rest |
| 1542 | () |
| 1543 | ;; setup buffer |
| 1544 | (if (setq wind (viper-get-visible-buffer-window buf)) |
| 1545 | () |
| 1546 | (setq wind (get-lru-window (if (featurep 'xemacs) nil 'visible))) |
| 1547 | (set-window-buffer wind buf)) |
| 1548 | |
| 1549 | (if (viper-window-display-p) |
| 1550 | (progn |
| 1551 | (raise-frame (window-frame wind)) |
| 1552 | (if (equal (window-frame wind) (window-frame old-win)) |
| 1553 | (save-window-excursion (select-window wind) (sit-for 1)) |
| 1554 | (select-window wind))) |
| 1555 | (save-window-excursion (select-window wind) (sit-for 1))) |
| 1556 | |
| 1557 | (with-current-buffer buf |
| 1558 | (setq viper-related-files-and-buffers-ring old-ring)) |
| 1559 | |
| 1560 | (setq viper-local-search-start-marker (point-marker)) |
| 1561 | ))) |
| 1562 | |
| 1563 | |
| 1564 | ;; Force auto save |
| 1565 | (defun ex-preserve () |
| 1566 | (message "Autosaving all buffers that need to be saved...") |
| 1567 | (do-auto-save t)) |
| 1568 | |
| 1569 | ;; Ex put |
| 1570 | (defun ex-put () |
| 1571 | (let ((point (if (null ex-addresses) (point) (car ex-addresses)))) |
| 1572 | (viper-get-ex-buffer) |
| 1573 | (setq viper-use-register ex-buffer) |
| 1574 | (goto-char point) |
| 1575 | (if (bobp) (viper-Put-back 1) (viper-put-back 1)))) |
| 1576 | |
| 1577 | ;; Ex print working directory |
| 1578 | (defun ex-pwd () |
| 1579 | (message "%s" default-directory)) |
| 1580 | |
| 1581 | ;; Ex quit command |
| 1582 | (defun ex-quit () |
| 1583 | ;; skip "!", if it is q!. In Viper q!, w!, etc., behave as q, w, etc. |
| 1584 | (with-current-buffer (setq viper-ex-work-buf |
| 1585 | (get-buffer-create viper-ex-work-buf-name)) |
| 1586 | (if (looking-at "!") (forward-char 1))) |
| 1587 | (if (< viper-expert-level 3) |
| 1588 | (save-buffers-kill-emacs) |
| 1589 | (kill-buffer (current-buffer)))) |
| 1590 | |
| 1591 | |
| 1592 | ;; Ex read command |
| 1593 | ;; ex-read doesn't support wildcards, because file completion is a better |
| 1594 | ;; mechanism. We also don't support # and % (except in :r <shell-command> |
| 1595 | ;; because file history is a better mechanism. |
| 1596 | (defun ex-read () |
| 1597 | (viper-get-ex-file) |
| 1598 | (let ((point (if (null ex-addresses) (point) (car ex-addresses))) |
| 1599 | command) |
| 1600 | (goto-char point) |
| 1601 | (viper-add-newline-at-eob-if-necessary) |
| 1602 | (if (not (or (bobp) (eobp))) (forward-line 1)) |
| 1603 | (if (and (not ex-variant) (string= ex-file "")) |
| 1604 | (progn |
| 1605 | (if (null buffer-file-name) |
| 1606 | (error viper-NoFileSpecified)) |
| 1607 | (setq ex-file buffer-file-name))) |
| 1608 | (if ex-cmdfile |
| 1609 | (progn |
| 1610 | (setq command |
| 1611 | ;; replace # and % with the previous/current file |
| 1612 | (ex-expand-filsyms |
| 1613 | (concat (shell-quote-argument ex-file) ex-cmdfile-args) |
| 1614 | (current-buffer))) |
| 1615 | (shell-command command t)) |
| 1616 | (insert-file-contents ex-file))) |
| 1617 | (ex-fixup-history viper-last-ex-prompt ex-file ex-cmdfile-args)) |
| 1618 | |
| 1619 | ;; this function fixes ex-history for some commands like ex-read, ex-edit |
| 1620 | (defun ex-fixup-history (&rest args) |
| 1621 | (setq viper-ex-history |
| 1622 | (cons (mapconcat 'identity args " ") (cdr viper-ex-history)))) |
| 1623 | |
| 1624 | |
| 1625 | ;; Ex recover from emacs \#file\# |
| 1626 | (defun ex-recover () |
| 1627 | (viper-get-ex-file) |
| 1628 | (if (or ex-append ex-offset) |
| 1629 | (error "`recover': %s" viper-SpuriousText)) |
| 1630 | (if (string= ex-file "") |
| 1631 | (progn |
| 1632 | (if (null buffer-file-name) |
| 1633 | (error "This buffer isn't visiting any file")) |
| 1634 | (setq ex-file buffer-file-name)) |
| 1635 | (setq ex-file (expand-file-name ex-file))) |
| 1636 | (if (and (not (string= ex-file (buffer-file-name))) |
| 1637 | (buffer-modified-p) |
| 1638 | (not ex-variant)) |
| 1639 | (error "No write since last change \(:rec! overrides\)")) |
| 1640 | (recover-file ex-file)) |
| 1641 | |
| 1642 | ;; Tell that `rewind' is obsolete and to use `:next count' instead |
| 1643 | (defun ex-rewind () |
| 1644 | (message |
| 1645 | "Use `:n <count>' instead. Counts are obtained from the `:args' command")) |
| 1646 | |
| 1647 | |
| 1648 | ;; read variable name for ex-set |
| 1649 | (defun ex-set-read-variable () |
| 1650 | (let ((minibuffer-local-completion-map |
| 1651 | (copy-keymap minibuffer-local-completion-map)) |
| 1652 | (cursor-in-echo-area t) |
| 1653 | str batch) |
| 1654 | (define-key |
| 1655 | minibuffer-local-completion-map " " 'minibuffer-complete-and-exit) |
| 1656 | (define-key minibuffer-local-completion-map "=" 'exit-minibuffer) |
| 1657 | (if (viper-set-unread-command-events |
| 1658 | (ex-get-inline-cmd-args "[ \t]*[a-zA-Z]*[ \t]*" nil "\C-m")) |
| 1659 | (progn |
| 1660 | (setq batch t) |
| 1661 | (viper-set-unread-command-events ?\C-m))) |
| 1662 | (message ":set <Variable> [= <Value>]") |
| 1663 | (or batch (sit-for 2)) |
| 1664 | |
| 1665 | (while (string-match "^[ \\t\\n]*$" |
| 1666 | (setq str |
| 1667 | (completing-read ":set " ex-variable-alist))) |
| 1668 | (message ":set <Variable> [= <Value>]") |
| 1669 | ;; if there are unread events, don't wait |
| 1670 | (or (viper-set-unread-command-events "") (sit-for 2)) |
| 1671 | ) ; while |
| 1672 | str)) |
| 1673 | |
| 1674 | |
| 1675 | (defun ex-set () |
| 1676 | (let ((var (ex-set-read-variable)) |
| 1677 | (val 0) |
| 1678 | (set-cmd "setq") |
| 1679 | (ask-if-save t) |
| 1680 | (auto-cmd-label "; don't touch or else...") |
| 1681 | (delete-turn-on-auto-fill-pattern |
| 1682 | "([ \t]*add-hook[ \t]+'viper-insert-state-hook[ \t]+'turn-on-auto-fill.*)") |
| 1683 | actual-lisp-cmd lisp-cmd-del-pattern |
| 1684 | val2 orig-var) |
| 1685 | (setq orig-var var) |
| 1686 | (cond ((string= var "all") |
| 1687 | (setq ask-if-save nil |
| 1688 | set-cmd nil)) |
| 1689 | ((member var '("ai" "autoindent")) |
| 1690 | (setq var "viper-auto-indent" |
| 1691 | set-cmd "setq" |
| 1692 | ask-if-save nil |
| 1693 | val "t")) |
| 1694 | ((member var '("ai-g" "autoindent-global")) |
| 1695 | (kill-local-variable 'viper-auto-indent) |
| 1696 | (setq var "viper-auto-indent" |
| 1697 | set-cmd "setq-default" |
| 1698 | val "t")) |
| 1699 | ((member var '("noai" "noautoindent")) |
| 1700 | (setq var "viper-auto-indent" |
| 1701 | ask-if-save nil |
| 1702 | val "nil")) |
| 1703 | ((member var '("noai-g" "noautoindent-global")) |
| 1704 | (kill-local-variable 'viper-auto-indent) |
| 1705 | (setq var "viper-auto-indent" |
| 1706 | set-cmd "setq-default" |
| 1707 | val "nil")) |
| 1708 | ((member var '("ic" "ignorecase")) |
| 1709 | (setq var "viper-case-fold-search" |
| 1710 | val "t")) |
| 1711 | ((member var '("noic" "noignorecase")) |
| 1712 | (setq var "viper-case-fold-search" |
| 1713 | val "nil")) |
| 1714 | ((member var '("ma" "magic")) |
| 1715 | (setq var "viper-re-search" |
| 1716 | val "t")) |
| 1717 | ((member var '("noma" "nomagic")) |
| 1718 | (setq var "viper-re-search" |
| 1719 | val "nil")) |
| 1720 | ((member var '("ro" "readonly")) |
| 1721 | (setq var "buffer-read-only" |
| 1722 | val "t")) |
| 1723 | ((member var '("noro" "noreadonly")) |
| 1724 | (setq var "buffer-read-only" |
| 1725 | val "nil")) |
| 1726 | ((member var '("sm" "showmatch")) |
| 1727 | (setq var "blink-matching-paren" |
| 1728 | val "t")) |
| 1729 | ((member var '("nosm" "noshowmatch")) |
| 1730 | (setq var "blink-matching-paren" |
| 1731 | val "nil")) |
| 1732 | ((member var '("ws" "wrapscan")) |
| 1733 | (setq var "viper-search-wrap-around" |
| 1734 | val "t")) |
| 1735 | ((member var '("nows" "nowrapscan")) |
| 1736 | (setq var "viper-search-wrap-around" |
| 1737 | val "nil"))) |
| 1738 | (if (and set-cmd (eq val 0)) ; value must be set by the user |
| 1739 | (let ((cursor-in-echo-area t)) |
| 1740 | (message ":set %s = <Value>" var) |
| 1741 | ;; if there are unread events, don't wait |
| 1742 | (or (viper-set-unread-command-events "") (sit-for 2)) |
| 1743 | (setq val (read-string (format ":set %s = " var))) |
| 1744 | (ex-fixup-history "set" orig-var val) |
| 1745 | |
| 1746 | ;; check numerical values |
| 1747 | (if (member var |
| 1748 | '("sw" "shiftwidth" |
| 1749 | "ts" "tabstop" |
| 1750 | "ts-g" "tabstop-global" |
| 1751 | "wm" "wrapmargin")) |
| 1752 | (condition-case nil |
| 1753 | (or (numberp (setq val2 (car (read-from-string val)))) |
| 1754 | (error "%s: Invalid value, numberp, %S" var val)) |
| 1755 | (error |
| 1756 | (error "%s: Invalid value, numberp, %S" var val)))) |
| 1757 | |
| 1758 | (cond |
| 1759 | ((member var '("sw" "shiftwidth")) |
| 1760 | (setq var "viper-shift-width")) |
| 1761 | ((member var '("ts" "tabstop")) |
| 1762 | ;; make it take effect in curr buff and new bufs |
| 1763 | (setq var "tab-width" |
| 1764 | set-cmd "setq" |
| 1765 | ask-if-save nil)) |
| 1766 | ((member var '("ts-g" "tabstop-global")) |
| 1767 | (kill-local-variable 'tab-width) |
| 1768 | (setq var "tab-width" |
| 1769 | set-cmd "setq-default")) |
| 1770 | ((member var '("wm" "wrapmargin")) |
| 1771 | ;; make it take effect in curr buff and new bufs |
| 1772 | (kill-local-variable 'fill-column) |
| 1773 | (setq var "fill-column" |
| 1774 | val (format "(- (window-width) %s)" val) |
| 1775 | set-cmd "setq-default")) |
| 1776 | ((member var '("sh" "shell")) |
| 1777 | (setq var "explicit-shell-file-name" |
| 1778 | val (format "\"%s\"" val))))) |
| 1779 | (ex-fixup-history "set" orig-var)) |
| 1780 | |
| 1781 | (if set-cmd |
| 1782 | (setq actual-lisp-cmd |
| 1783 | (format "\n(%s %s %s) %s" set-cmd var val auto-cmd-label) |
| 1784 | lisp-cmd-del-pattern |
| 1785 | (format "^\n?[ \t]*([ \t]*%s[ \t]+%s[ \t].*)[ \t]*%s" |
| 1786 | set-cmd var auto-cmd-label))) |
| 1787 | |
| 1788 | (if (and ask-if-save |
| 1789 | (y-or-n-p (format "Do you want to save this setting in %s " |
| 1790 | viper-custom-file-name))) |
| 1791 | (progn |
| 1792 | (viper-save-string-in-file |
| 1793 | actual-lisp-cmd viper-custom-file-name |
| 1794 | ;; del pattern |
| 1795 | lisp-cmd-del-pattern) |
| 1796 | (if (string= var "fill-column") |
| 1797 | (if (> val2 0) |
| 1798 | (viper-save-string-in-file |
| 1799 | (concat |
| 1800 | "(add-hook 'viper-insert-state-hook 'turn-on-auto-fill) " |
| 1801 | auto-cmd-label) |
| 1802 | viper-custom-file-name |
| 1803 | delete-turn-on-auto-fill-pattern) |
| 1804 | (viper-save-string-in-file |
| 1805 | nil viper-custom-file-name delete-turn-on-auto-fill-pattern) |
| 1806 | (viper-save-string-in-file |
| 1807 | nil viper-custom-file-name |
| 1808 | ;; del pattern |
| 1809 | lisp-cmd-del-pattern) |
| 1810 | )) |
| 1811 | )) |
| 1812 | |
| 1813 | (if set-cmd |
| 1814 | (message "%s %s %s" |
| 1815 | set-cmd var |
| 1816 | (if (string-match "^[ \t]*$" val) |
| 1817 | (format "%S" val) |
| 1818 | val))) |
| 1819 | (if actual-lisp-cmd |
| 1820 | (eval (car (read-from-string actual-lisp-cmd)))) |
| 1821 | (if (string= var "fill-column") |
| 1822 | (if (> val2 0) |
| 1823 | (auto-fill-mode 1) |
| 1824 | (auto-fill-mode -1))) |
| 1825 | (if (string= var "all") (ex-show-vars)) |
| 1826 | )) |
| 1827 | |
| 1828 | ;; In inline args, skip regex-forw and (optionally) chars-back. |
| 1829 | ;; Optional 3d arg is a string that should replace ' ' to prevent its |
| 1830 | ;; special meaning |
| 1831 | (defun ex-get-inline-cmd-args (regex-forw &optional chars-back replace-str) |
| 1832 | (with-current-buffer (setq viper-ex-work-buf |
| 1833 | (get-buffer-create viper-ex-work-buf-name)) |
| 1834 | (goto-char (point-min)) |
| 1835 | (re-search-forward regex-forw nil t) |
| 1836 | (let ((beg (point)) |
| 1837 | end) |
| 1838 | (goto-char (point-max)) |
| 1839 | (if chars-back |
| 1840 | (skip-chars-backward chars-back) |
| 1841 | (skip-chars-backward " \t\n\C-m")) |
| 1842 | (setq end (point)) |
| 1843 | ;; replace SPC with `=' to suppress the special meaning SPC has |
| 1844 | ;; in Ex commands |
| 1845 | (goto-char beg) |
| 1846 | (if replace-str |
| 1847 | (while (re-search-forward " +" nil t) |
| 1848 | (replace-match replace-str nil t) |
| 1849 | (viper-forward-char-carefully))) |
| 1850 | (goto-char end) |
| 1851 | (buffer-substring beg end)))) |
| 1852 | |
| 1853 | |
| 1854 | ;; Ex shell command |
| 1855 | (defun ex-shell () |
| 1856 | (shell)) |
| 1857 | |
| 1858 | ;; Viper help. Invokes Info |
| 1859 | (defun ex-help () |
| 1860 | (condition-case nil |
| 1861 | (progn |
| 1862 | (pop-to-buffer (get-buffer-create "*info*")) |
| 1863 | (info (if (featurep 'xemacs) "viper.info" "viper")) |
| 1864 | (message "Type `i' to search for a specific topic")) |
| 1865 | (error (beep 1) |
| 1866 | (with-output-to-temp-buffer " *viper-info*" |
| 1867 | (princ (format " |
| 1868 | The Info file for Viper does not seem to be installed. |
| 1869 | |
| 1870 | This file is part of the standard distribution of %sEmacs. |
| 1871 | Please contact your system administrator. " |
| 1872 | (if (featurep 'xemacs) "X" "") |
| 1873 | )))))) |
| 1874 | |
| 1875 | ;; Ex source command. Loads the file specified as argument or `~/.viper' |
| 1876 | (defun ex-source () |
| 1877 | (viper-get-ex-file) |
| 1878 | (if (string= ex-file "") |
| 1879 | (load viper-custom-file-name) |
| 1880 | (load ex-file))) |
| 1881 | |
| 1882 | ;; Ex substitute command |
| 1883 | ;; If REPEAT use previous regexp which is ex-reg-exp or viper-s-string |
| 1884 | (defun ex-substitute (&optional repeat r-flag) |
| 1885 | (let ((opt-g nil) |
| 1886 | (opt-c nil) |
| 1887 | (matched-pos nil) |
| 1888 | (case-fold-search viper-case-fold-search) |
| 1889 | delim pat repl) |
| 1890 | (if repeat (setq ex-token nil) (setq delim (viper-get-ex-pat))) |
| 1891 | (if (null ex-token) |
| 1892 | (progn |
| 1893 | (setq pat (if r-flag viper-s-string ex-reg-exp)) |
| 1894 | (or (stringp pat) |
| 1895 | (error "No previous pattern to use in substitution")) |
| 1896 | (setq repl ex-repl |
| 1897 | delim (string-to-char pat))) |
| 1898 | (setq pat (if (string= ex-token "") viper-s-string ex-token)) |
| 1899 | (setq viper-s-string pat |
| 1900 | ex-reg-exp pat) |
| 1901 | (setq delim (viper-get-ex-pat)) |
| 1902 | (if (null ex-token) |
| 1903 | (setq ex-token "" |
| 1904 | ex-repl "") |
| 1905 | (setq repl ex-token |
| 1906 | ex-repl ex-token))) |
| 1907 | (while (viper-get-ex-opt-gc delim) |
| 1908 | (if (string= ex-token "g") (setq opt-g t) (setq opt-c t))) |
| 1909 | (viper-get-ex-count) |
| 1910 | (if ex-count |
| 1911 | (save-excursion |
| 1912 | (if ex-addresses (goto-char (car ex-addresses))) |
| 1913 | (set-mark (point)) |
| 1914 | (forward-line (1- ex-count)) |
| 1915 | (setq ex-addresses (cons (point) (cons (mark t) nil)))) |
| 1916 | (if (null ex-addresses) |
| 1917 | (setq ex-addresses (cons (point) (cons (point) nil))) |
| 1918 | (if (null (cdr ex-addresses)) |
| 1919 | (setq ex-addresses (cons (car ex-addresses) ex-addresses))))) |
| 1920 | ;(setq G opt-g) |
| 1921 | (let ((beg (car ex-addresses)) |
| 1922 | (end (car (cdr ex-addresses))) |
| 1923 | eol-mark) |
| 1924 | (save-excursion |
| 1925 | (viper-enlarge-region beg end) |
| 1926 | (let ((limit (save-excursion |
| 1927 | (goto-char (max (point) (mark t))) |
| 1928 | (point-marker)))) |
| 1929 | (goto-char (min (point) (mark t))) |
| 1930 | (while (< (point) limit) |
| 1931 | (save-excursion |
| 1932 | (end-of-line) |
| 1933 | ;; This move allows the use of newline as the last character in |
| 1934 | ;; the substitution pattern |
| 1935 | (viper-forward-char-carefully) |
| 1936 | (setq eol-mark (point-marker))) |
| 1937 | (beginning-of-line) |
| 1938 | (if opt-g |
| 1939 | (progn |
| 1940 | (while (and (not (eolp)) |
| 1941 | (re-search-forward pat eol-mark t)) |
| 1942 | (if (or (not opt-c) |
| 1943 | (progn |
| 1944 | (viper-put-on-search-overlay (match-beginning 0) |
| 1945 | (match-end 0)) |
| 1946 | (y-or-n-p "Replace? "))) |
| 1947 | (progn |
| 1948 | (viper-hide-search-overlay) |
| 1949 | (setq matched-pos (point)) |
| 1950 | (if (not (stringp repl)) |
| 1951 | (error "Can't perform Ex substitution: No previous replacement pattern")) |
| 1952 | (replace-match repl t)))) |
| 1953 | (end-of-line) |
| 1954 | (viper-forward-char-carefully)) |
| 1955 | (if (null pat) |
| 1956 | (error |
| 1957 | "Can't repeat Ex substitution: No previous regular expression")) |
| 1958 | (if (and (re-search-forward pat eol-mark t) |
| 1959 | (or (not opt-c) |
| 1960 | (progn |
| 1961 | (viper-put-on-search-overlay (match-beginning 0) |
| 1962 | (match-end 0)) |
| 1963 | (y-or-n-p "Replace? ")))) |
| 1964 | (progn |
| 1965 | (viper-hide-search-overlay) |
| 1966 | (setq matched-pos (point)) |
| 1967 | (if (not (stringp repl)) |
| 1968 | (error "Can't perform Ex substitution: No previous replacement pattern")) |
| 1969 | (replace-match repl t))) |
| 1970 | ;;(end-of-line) |
| 1971 | ;;(viper-forward-char-carefully) |
| 1972 | (goto-char eol-mark) |
| 1973 | ))))) |
| 1974 | (if matched-pos (goto-char matched-pos)) |
| 1975 | (beginning-of-line) |
| 1976 | (if opt-c (message "done")))) |
| 1977 | |
| 1978 | ;; Ex tag command |
| 1979 | (defun ex-tag () |
| 1980 | (let (tag) |
| 1981 | (with-current-buffer (setq viper-ex-work-buf |
| 1982 | (get-buffer-create viper-ex-work-buf-name)) |
| 1983 | (skip-chars-forward " \t") |
| 1984 | (set-mark (point)) |
| 1985 | (skip-chars-forward "^ |\t\n") |
| 1986 | (setq tag (buffer-substring (mark t) (point)))) |
| 1987 | (if (not (string= tag "")) (setq ex-tag tag)) |
| 1988 | (viper-change-state-to-emacs) |
| 1989 | (condition-case conds |
| 1990 | (progn |
| 1991 | (if (string= tag "") |
| 1992 | (find-tag ex-tag t) |
| 1993 | (find-tag-other-window ex-tag)) |
| 1994 | (viper-change-state-to-vi)) |
| 1995 | (error |
| 1996 | (viper-change-state-to-vi) |
| 1997 | (viper-message-conditions conds))))) |
| 1998 | |
| 1999 | ;; Ex write command |
| 2000 | ;; ex-write doesn't support wildcards, because file completion is a better |
| 2001 | ;; mechanism. We also don't support # and % |
| 2002 | ;; because file history is a better mechanism. |
| 2003 | (defun ex-write (q-flag) |
| 2004 | (viper-default-ex-addresses t) |
| 2005 | (viper-get-ex-file) |
| 2006 | (let ((end (car ex-addresses)) |
| 2007 | (beg (car (cdr ex-addresses))) |
| 2008 | (orig-buf (current-buffer)) |
| 2009 | ;;(orig-buf-file-name (buffer-file-name)) |
| 2010 | ;;(orig-buf-name (buffer-name)) |
| 2011 | ;;(buff-changed-p (buffer-modified-p)) |
| 2012 | temp-buf writing-same-file region |
| 2013 | file-exists writing-whole-file) |
| 2014 | (if (> beg end) (error viper-FirstAddrExceedsSecond)) |
| 2015 | (if ex-cmdfile |
| 2016 | (progn |
| 2017 | (viper-enlarge-region beg end) |
| 2018 | (shell-command-on-region (point) (mark t) |
| 2019 | (concat ex-file ex-cmdfile-args))) |
| 2020 | (if (and (string= ex-file "") (not (buffer-file-name))) |
| 2021 | (setq ex-file |
| 2022 | (read-file-name |
| 2023 | (format "Buffer %s isn't visiting any file. File to save in: " |
| 2024 | (buffer-name))))) |
| 2025 | |
| 2026 | (setq writing-whole-file (and (= (point-min) beg) (= (point-max) end)) |
| 2027 | ex-file (if (string= ex-file "") |
| 2028 | (buffer-file-name) |
| 2029 | (expand-file-name ex-file))) |
| 2030 | ;; if ex-file is a directory use the file portion of the buffer file name |
| 2031 | (if (and (file-directory-p ex-file) |
| 2032 | buffer-file-name |
| 2033 | (not (file-directory-p buffer-file-name))) |
| 2034 | (setq ex-file |
| 2035 | (concat (file-name-as-directory ex-file) |
| 2036 | (file-name-nondirectory buffer-file-name)))) |
| 2037 | |
| 2038 | (setq file-exists (file-exists-p ex-file) |
| 2039 | writing-same-file (string= ex-file (buffer-file-name))) |
| 2040 | |
| 2041 | ;; do actual writing |
| 2042 | (if (and writing-whole-file writing-same-file) |
| 2043 | ;; saving whole buffer in visited file |
| 2044 | (if (not (buffer-modified-p)) |
| 2045 | (message "(No changes need to be saved)") |
| 2046 | (viper-maybe-checkout (current-buffer)) |
| 2047 | (save-buffer) |
| 2048 | (save-restriction |
| 2049 | (widen) |
| 2050 | (ex-write-info file-exists ex-file (point-min) (point-max)) |
| 2051 | )) |
| 2052 | ;; writing to non-visited file and it already exists |
| 2053 | (if (and file-exists (not writing-same-file) |
| 2054 | (not (yes-or-no-p |
| 2055 | (format "File %s exists. Overwrite? " ex-file)))) |
| 2056 | (error "Quit")) |
| 2057 | ;; writing a region or whole buffer to non-visited file |
| 2058 | (unwind-protect |
| 2059 | (save-excursion |
| 2060 | (viper-enlarge-region beg end) |
| 2061 | (setq region (buffer-substring (point) (mark t))) |
| 2062 | ;; create temp buffer for the region |
| 2063 | (setq temp-buf (get-buffer-create " *ex-write*")) |
| 2064 | (set-buffer temp-buf) |
| 2065 | (if (featurep 'xemacs) |
| 2066 | (set-visited-file-name ex-file) |
| 2067 | (set-visited-file-name ex-file 'noquery)) |
| 2068 | (erase-buffer) |
| 2069 | (if (and file-exists ex-append) |
| 2070 | (insert-file-contents ex-file)) |
| 2071 | (goto-char (point-max)) |
| 2072 | (insert region) |
| 2073 | ;; ask user |
| 2074 | (viper-maybe-checkout (current-buffer)) |
| 2075 | (setq selective-display nil) |
| 2076 | (save-buffer) |
| 2077 | (ex-write-info |
| 2078 | file-exists ex-file (point-min) (point-max)) |
| 2079 | ) |
| 2080 | ;; this must be under unwind-protect so that |
| 2081 | ;; temp-buf will be deleted in case of an error |
| 2082 | (set-buffer temp-buf) |
| 2083 | (set-buffer-modified-p nil) |
| 2084 | (kill-buffer temp-buf) |
| 2085 | ;; buffer/region has been written, now take care of details |
| 2086 | (set-buffer orig-buf))) |
| 2087 | ;; set the right file modification time |
| 2088 | (if (and (buffer-file-name) writing-same-file) |
| 2089 | (set-visited-file-modtime)) |
| 2090 | ;; prevent loss of data if saving part of the buffer in visited file |
| 2091 | (or writing-whole-file |
| 2092 | (not writing-same-file) |
| 2093 | (progn |
| 2094 | (sit-for 2) |
| 2095 | (message "Warning: you have saved only part of the buffer!") |
| 2096 | (set-buffer-modified-p t))) |
| 2097 | (if q-flag |
| 2098 | (if (< viper-expert-level 2) |
| 2099 | (save-buffers-kill-emacs) |
| 2100 | (kill-buffer (current-buffer)))) |
| 2101 | ))) |
| 2102 | |
| 2103 | |
| 2104 | (defun ex-write-info (exists file-name beg end) |
| 2105 | (message "`%s'%s %d lines, %d characters" |
| 2106 | (viper-abbreviate-file-name file-name) |
| 2107 | (if exists "" " [New file]") |
| 2108 | (count-lines beg (min (1+ end) (point-max))) |
| 2109 | (- end beg))) |
| 2110 | |
| 2111 | ;; Ex yank command |
| 2112 | (defun ex-yank () |
| 2113 | (viper-default-ex-addresses) |
| 2114 | (viper-get-ex-buffer) |
| 2115 | (let ((end (car ex-addresses)) (beg (car (cdr ex-addresses)))) |
| 2116 | (if (> beg end) (error viper-FirstAddrExceedsSecond)) |
| 2117 | (save-excursion |
| 2118 | (viper-enlarge-region beg end) |
| 2119 | (exchange-point-and-mark) |
| 2120 | (if (or ex-g-flag ex-g-variant) |
| 2121 | (error "Can't execute `yank' within `global'")) |
| 2122 | (if ex-count |
| 2123 | (progn |
| 2124 | (set-mark (point)) |
| 2125 | (forward-line (1- ex-count))) |
| 2126 | (set-mark end)) |
| 2127 | (viper-enlarge-region (point) (mark t)) |
| 2128 | (if ex-flag (error "`yank': %s" viper-SpuriousText)) |
| 2129 | (if ex-buffer |
| 2130 | (cond ((viper-valid-register ex-buffer '(Letter)) |
| 2131 | (viper-append-to-register |
| 2132 | (downcase ex-buffer) (point) (mark t))) |
| 2133 | ((viper-valid-register ex-buffer) |
| 2134 | (copy-to-register ex-buffer (point) (mark t) nil)) |
| 2135 | (t (error viper-InvalidRegister ex-buffer)))) |
| 2136 | (copy-region-as-kill (point) (mark t))))) |
| 2137 | |
| 2138 | ;; Execute shell command |
| 2139 | (defun ex-command () |
| 2140 | (let (command) |
| 2141 | (with-current-buffer (setq viper-ex-work-buf |
| 2142 | (get-buffer-create viper-ex-work-buf-name)) |
| 2143 | (skip-chars-forward " \t") |
| 2144 | (setq command (buffer-substring (point) (point-max))) |
| 2145 | (end-of-line)) |
| 2146 | ;; replace # and % with the previous/current file |
| 2147 | (setq command (ex-expand-filsyms command (current-buffer))) |
| 2148 | (if (and (> (length command) 0) (string= "!" (substring command 0 1))) |
| 2149 | (if viper-ex-last-shell-com |
| 2150 | (setq command |
| 2151 | (concat viper-ex-last-shell-com (substring command 1))) |
| 2152 | (error "No previous shell command"))) |
| 2153 | (setq viper-ex-last-shell-com command) |
| 2154 | (if (null ex-addresses) |
| 2155 | (shell-command command) |
| 2156 | (let ((end (car ex-addresses)) (beg (car (cdr ex-addresses)))) |
| 2157 | (if (null beg) (setq beg end)) |
| 2158 | (save-excursion |
| 2159 | (goto-char beg) |
| 2160 | (set-mark end) |
| 2161 | (viper-enlarge-region (point) (mark t)) |
| 2162 | (shell-command-on-region (point) (mark t) command t)) |
| 2163 | (goto-char beg))))) |
| 2164 | |
| 2165 | (defun ex-compile () |
| 2166 | "Reads args from the command line, then runs make with the args. |
| 2167 | If no args are given, then it runs the last compile command. |
| 2168 | Type 'mak ' (including the space) to run make with no args." |
| 2169 | (let (args) |
| 2170 | (with-current-buffer (setq viper-ex-work-buf |
| 2171 | (get-buffer-create viper-ex-work-buf-name)) |
| 2172 | (setq args (buffer-substring (point) (point-max))) |
| 2173 | (end-of-line)) |
| 2174 | ;; Remove the newline that may (will?) be at the end of the args |
| 2175 | (if (string= "\n" (substring args (1- (length args)))) |
| 2176 | (setq args (substring args 0 (1- (length args))))) |
| 2177 | ;; Run last command if no args given, else construct a new command. |
| 2178 | (setq args |
| 2179 | (if (string= "" args) |
| 2180 | (if (boundp 'compile-command) |
| 2181 | compile-command |
| 2182 | ex-compile-command) |
| 2183 | (concat ex-compile-command " " args))) |
| 2184 | (compile args) |
| 2185 | )) |
| 2186 | |
| 2187 | ;; Print line number |
| 2188 | (defun ex-line-no () |
| 2189 | (message "%d" |
| 2190 | (1+ (count-lines |
| 2191 | (point-min) |
| 2192 | (if (null ex-addresses) (point-max) (car ex-addresses)))))) |
| 2193 | |
| 2194 | ;; Give information on the file visited by the current buffer |
| 2195 | (defun viper-info-on-file () |
| 2196 | (interactive) |
| 2197 | (let ((pos1 (viper-line-pos 'start)) |
| 2198 | (pos2 (viper-line-pos 'end)) |
| 2199 | lines file info) |
| 2200 | (setq lines (count-lines (point-min) (viper-line-pos 'end)) |
| 2201 | file (cond ((buffer-file-name) |
| 2202 | (concat (viper-abbreviate-file-name (buffer-file-name)) ":")) |
| 2203 | ((buffer-file-name (buffer-base-buffer)) |
| 2204 | (concat (viper-abbreviate-file-name (buffer-file-name (buffer-base-buffer))) " (indirect buffer):")) |
| 2205 | (t (concat (buffer-name) " [Not visiting any file]:"))) |
| 2206 | info (format "line=%d/%d pos=%d/%d col=%d %s" |
| 2207 | (if (= pos1 pos2) |
| 2208 | (1+ lines) |
| 2209 | lines) |
| 2210 | (count-lines (point-min) (point-max)) |
| 2211 | (point) (1- (point-max)) |
| 2212 | (1+ (current-column)) |
| 2213 | (if (buffer-modified-p) "[Modified]" "[Unchanged]"))) |
| 2214 | (if (< (+ 1 (length info) (length file)) |
| 2215 | (window-width (minibuffer-window))) |
| 2216 | (message "%s" (concat file " " info)) |
| 2217 | (save-window-excursion |
| 2218 | (with-output-to-temp-buffer " *viper-info*" |
| 2219 | (princ (concat "\n" file "\n\n\t" info "\n\n"))) |
| 2220 | (let ((inhibit-quit t)) |
| 2221 | (viper-set-unread-command-events (viper-read-event))) |
| 2222 | (kill-buffer " *viper-info*"))) |
| 2223 | )) |
| 2224 | |
| 2225 | |
| 2226 | ;; Without arguments displays info on file. With an arg, sets the visited file |
| 2227 | ;; name to that arg |
| 2228 | (defun ex-set-visited-file-name () |
| 2229 | (viper-get-ex-file) |
| 2230 | (if (string= ex-file "") |
| 2231 | (viper-info-on-file) |
| 2232 | ;; If ex-file is a directory, use the file portion of the buffer |
| 2233 | ;; file name (like ex-write). Do this even if ex-file is a |
| 2234 | ;; non-existent directory, since set-visited-file-name signals an |
| 2235 | ;; error on this condition, too. |
| 2236 | (if (and (string= (file-name-nondirectory ex-file) "") |
| 2237 | buffer-file-name |
| 2238 | (not (file-directory-p buffer-file-name))) |
| 2239 | (setq ex-file (concat (file-name-as-directory ex-file) |
| 2240 | (file-name-nondirectory buffer-file-name)))) |
| 2241 | (set-visited-file-name ex-file))) |
| 2242 | |
| 2243 | |
| 2244 | ;; display all variables set through :set |
| 2245 | (defun ex-show-vars () |
| 2246 | (with-output-to-temp-buffer " *viper-info*" |
| 2247 | (princ (if viper-auto-indent |
| 2248 | "autoindent (local)\n" "noautoindent (local)\n")) |
| 2249 | (princ (if (default-value 'viper-auto-indent) |
| 2250 | "autoindent (global) \n" "noautoindent (global) \n")) |
| 2251 | (princ (if viper-case-fold-search "ignorecase\n" "noignorecase\n")) |
| 2252 | (princ (if viper-re-search "magic\n" "nomagic\n")) |
| 2253 | (princ (if buffer-read-only "readonly\n" "noreadonly\n")) |
| 2254 | (princ (if blink-matching-paren "showmatch\n" "noshowmatch\n")) |
| 2255 | (princ (if viper-search-wrap-around "wrapscan\n" "nowrapscan\n")) |
| 2256 | (princ (format "shiftwidth \t\t= %S\n" viper-shift-width)) |
| 2257 | (princ (format "tabstop (local) \t= %S\n" tab-width)) |
| 2258 | (princ (format "tabstop (global) \t= %S\n" (default-value 'tab-width))) |
| 2259 | (princ (format "wrapmargin (local) \t= %S\n" |
| 2260 | (- (window-width) fill-column))) |
| 2261 | (princ (format "wrapmargin (global) \t= %S\n" |
| 2262 | (- (window-width) (default-value 'fill-column)))) |
| 2263 | (princ (format "shell \t\t\t= %S\n" (if (boundp 'explicit-shell-file-name) |
| 2264 | explicit-shell-file-name |
| 2265 | 'none))) |
| 2266 | )) |
| 2267 | |
| 2268 | (defun ex-print () |
| 2269 | (viper-default-ex-addresses) |
| 2270 | (let ((end (car ex-addresses)) |
| 2271 | (beg (car (cdr ex-addresses)))) |
| 2272 | (if (> beg end) (error viper-FirstAddrExceedsSecond)) |
| 2273 | (save-excursion |
| 2274 | (viper-enlarge-region beg end) |
| 2275 | (if (or ex-g-flag ex-g-variant) |
| 2276 | ;; When executing a global command, collect output of each |
| 2277 | ;; print in viper-ex-print-buf. |
| 2278 | (progn |
| 2279 | (append-to-buffer viper-ex-print-buf (point) (mark t)) |
| 2280 | ;; Is this the last mark for the global command? |
| 2281 | (unless (cdr ex-g-marks) |
| 2282 | (with-current-buffer viper-ex-print-buf |
| 2283 | (ex-print-display-lines (buffer-string)) |
| 2284 | (erase-buffer)))) |
| 2285 | (ex-print-display-lines (buffer-substring (point) (mark t))))))) |
| 2286 | |
| 2287 | (defun ex-print-display-lines (lines) |
| 2288 | (cond |
| 2289 | ;; String doesn't contain a newline. |
| 2290 | ((not (string-match "\n" lines)) |
| 2291 | (message "%s" lines)) |
| 2292 | ;; String contains only one newline at the end. Strip it off. |
| 2293 | ((= (string-match "\n" lines) (1- (length lines))) |
| 2294 | (message "%s" (substring lines 0 -1))) |
| 2295 | ;; String spans more than one line. Use a temporary buffer. |
| 2296 | (t |
| 2297 | (save-current-buffer |
| 2298 | (with-output-to-temp-buffer " *viper-info*" |
| 2299 | (princ lines)))))) |
| 2300 | |
| 2301 | |
| 2302 | |
| 2303 | |
| 2304 | |
| 2305 | ;;; viper-ex.el ends here |