| 1 | ;;; viper-cmd.el --- Vi command support for Viper |
| 2 | |
| 3 | ;; Copyright (C) 1997-2012 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-cmd) |
| 28 | |
| 29 | ;; Compiler pacifier |
| 30 | (defvar viper-minibuffer-current-face) |
| 31 | (defvar viper-minibuffer-insert-face) |
| 32 | (defvar viper-minibuffer-vi-face) |
| 33 | (defvar viper-minibuffer-emacs-face) |
| 34 | (defvar viper-always) |
| 35 | (defvar viper-mode-string) |
| 36 | (defvar viper-custom-file-name) |
| 37 | (defvar viper--key-maps) |
| 38 | (defvar viper--intercept-key-maps) |
| 39 | (defvar iso-accents-mode) |
| 40 | (defvar quail-mode) |
| 41 | (defvar quail-current-str) |
| 42 | (defvar mark-even-if-inactive) |
| 43 | (defvar init-message) |
| 44 | (defvar viper-initial) |
| 45 | (defvar undo-beg-posn) |
| 46 | (defvar undo-end-posn) |
| 47 | |
| 48 | (eval-and-compile |
| 49 | (unless (fboundp 'declare-function) (defmacro declare-function (&rest r)))) |
| 50 | ;; end pacifier |
| 51 | |
| 52 | |
| 53 | (require 'viper-util) |
| 54 | (require 'viper-keym) |
| 55 | (require 'viper-mous) |
| 56 | (require 'viper-macs) |
| 57 | (require 'viper-ex) |
| 58 | |
| 59 | |
| 60 | \f |
| 61 | ;; Generic predicates |
| 62 | |
| 63 | ;; These test functions are shamelessly lifted from vip 4.4.2 by Aamod Sane |
| 64 | |
| 65 | ;; generate test functions |
| 66 | ;; given symbol foo, foo-p is the test function, foos is the set of |
| 67 | ;; Viper command keys |
| 68 | ;; (macroexpand '(viper-test-com-defun foo)) |
| 69 | ;; (defun foo-p (com) (consp (memq com foos))) |
| 70 | |
| 71 | (defmacro viper-test-com-defun (name) |
| 72 | (let* ((snm (symbol-name name)) |
| 73 | (nm-p (intern (concat snm "-p"))) |
| 74 | (nms (intern (concat snm "s")))) |
| 75 | `(defun ,nm-p (com) |
| 76 | (consp (viper-memq-char com ,nms) |
| 77 | )))) |
| 78 | |
| 79 | ;; Variables for defining VI commands |
| 80 | |
| 81 | ;; Modifying commands that can be prefixes to movement commands |
| 82 | (defvar viper-prefix-commands '(?c ?d ?y ?! ?= ?# ?< ?> ?\")) |
| 83 | ;; define viper-prefix-command-p |
| 84 | (viper-test-com-defun viper-prefix-command) |
| 85 | |
| 86 | ;; Commands that are pairs eg. dd. r and R here are a hack |
| 87 | (defconst viper-charpair-commands '(?c ?d ?y ?! ?= ?< ?> ?r ?R)) |
| 88 | ;; define viper-charpair-command-p |
| 89 | (viper-test-com-defun viper-charpair-command) |
| 90 | |
| 91 | (defconst viper-movement-commands '(?b ?B ?e ?E ?f ?F ?G ?h ?j ?k ?l |
| 92 | ?H ?M ?L ?n ?t ?T ?w ?W ?$ ?% |
| 93 | ?^ ?( ?) ?- ?+ ?| ?{ ?} ?[ ?] ?' ?` |
| 94 | ?\; ?, ?0 ?? ?/ ?\ ?\C-m |
| 95 | space return |
| 96 | delete backspace |
| 97 | ) |
| 98 | "Movement commands") |
| 99 | ;; define viper-movement-command-p |
| 100 | (viper-test-com-defun viper-movement-command) |
| 101 | |
| 102 | ;; Vi digit commands |
| 103 | (defconst viper-digit-commands '(?1 ?2 ?3 ?4 ?5 ?6 ?7 ?8 ?9)) |
| 104 | |
| 105 | ;; define viper-digit-command-p |
| 106 | (viper-test-com-defun viper-digit-command) |
| 107 | |
| 108 | ;; Commands that can be repeated by . (dotted) |
| 109 | (defconst viper-dotable-commands '(?c ?d ?C ?s ?S ?D ?> ?<)) |
| 110 | ;; define viper-dotable-command-p |
| 111 | (viper-test-com-defun viper-dotable-command) |
| 112 | |
| 113 | ;; Commands that can follow a # |
| 114 | (defconst viper-hash-commands '(?c ?C ?g ?q ?s)) |
| 115 | ;; define viper-hash-command-p |
| 116 | (viper-test-com-defun viper-hash-command) |
| 117 | |
| 118 | ;; Commands that may have registers as prefix |
| 119 | (defconst viper-regsuffix-commands '(?d ?y ?Y ?D ?p ?P ?x ?X)) |
| 120 | ;; define viper-regsuffix-command-p |
| 121 | (viper-test-com-defun viper-regsuffix-command) |
| 122 | |
| 123 | (defconst viper-vi-commands (append viper-movement-commands |
| 124 | viper-digit-commands |
| 125 | viper-dotable-commands |
| 126 | viper-charpair-commands |
| 127 | viper-hash-commands |
| 128 | viper-prefix-commands |
| 129 | viper-regsuffix-commands) |
| 130 | "The list of all commands in Vi-state.") |
| 131 | ;; define viper-vi-command-p |
| 132 | (viper-test-com-defun viper-vi-command) |
| 133 | |
| 134 | ;; Where viper saves mark. This mark is resurrected by m^ |
| 135 | (defvar viper-saved-mark nil) |
| 136 | |
| 137 | ;; Contains user settings for vars affected by viper-set-expert-level function. |
| 138 | ;; Not a user option. |
| 139 | (defvar viper-saved-user-settings nil) |
| 140 | |
| 141 | |
| 142 | \f |
| 143 | ;;; CODE |
| 144 | |
| 145 | ;; sentinels |
| 146 | |
| 147 | ;; Runs viper-after-change-functions inside after-change-functions |
| 148 | (defun viper-after-change-sentinel (beg end len) |
| 149 | (run-hook-with-args 'viper-after-change-functions beg end len)) |
| 150 | |
| 151 | ;; Runs viper-before-change-functions inside before-change-functions |
| 152 | (defun viper-before-change-sentinel (beg end) |
| 153 | (run-hook-with-args 'viper-before-change-functions beg end)) |
| 154 | |
| 155 | (defsubst viper-post-command-sentinel () |
| 156 | (condition-case conds |
| 157 | (run-hooks 'viper-post-command-hooks) |
| 158 | (error (viper-message-conditions conds))) |
| 159 | (if (eq viper-current-state 'vi-state) |
| 160 | (viper-restore-cursor-color 'after-insert-mode))) |
| 161 | |
| 162 | (defsubst viper-pre-command-sentinel () |
| 163 | (run-hooks 'viper-pre-command-hooks)) |
| 164 | |
| 165 | ;; Needed so that Viper will be able to figure the last inserted |
| 166 | ;; chunk of text with reasonable accuracy. |
| 167 | (defsubst viper-insert-state-post-command-sentinel () |
| 168 | (if (and (memq viper-current-state '(insert-state replace-state)) |
| 169 | viper-insert-point |
| 170 | (>= (point) viper-insert-point)) |
| 171 | (setq viper-last-posn-while-in-insert-state (point-marker))) |
| 172 | (or (viper-overlay-p viper-replace-overlay) |
| 173 | (progn |
| 174 | (viper-set-replace-overlay (point-min) (point-min)) |
| 175 | (viper-hide-replace-overlay))) |
| 176 | (if (eq viper-current-state 'insert-state) |
| 177 | (let ((icolor (viper-frame-value viper-insert-state-cursor-color))) |
| 178 | (or (stringp (viper-get-saved-cursor-color-in-insert-mode)) |
| 179 | (string= (viper-get-cursor-color) icolor) |
| 180 | ;; save current color, if not already saved |
| 181 | (viper-save-cursor-color 'before-insert-mode)) |
| 182 | ;; set insert mode cursor color |
| 183 | (viper-change-cursor-color icolor))) |
| 184 | (let ((ecolor (viper-frame-value viper-emacs-state-cursor-color))) |
| 185 | (when (and ecolor (eq viper-current-state 'emacs-state)) |
| 186 | (or (stringp (viper-get-saved-cursor-color-in-emacs-mode)) |
| 187 | (string= (viper-get-cursor-color) ecolor) |
| 188 | ;; save current color, if not already saved |
| 189 | (viper-save-cursor-color 'before-emacs-mode)) |
| 190 | ;; set emacs mode cursor color |
| 191 | (viper-change-cursor-color ecolor))) |
| 192 | |
| 193 | (if (and (memq this-command '(dabbrev-expand hippie-expand)) |
| 194 | (integerp viper-pre-command-point) |
| 195 | (markerp viper-insert-point) |
| 196 | (marker-position viper-insert-point) |
| 197 | (> viper-insert-point viper-pre-command-point)) |
| 198 | (viper-move-marker-locally viper-insert-point viper-pre-command-point))) |
| 199 | |
| 200 | (defsubst viper-preserve-cursor-color () |
| 201 | (or (memq this-command '(self-insert-command |
| 202 | viper-del-backward-char-in-insert |
| 203 | viper-del-backward-char-in-replace |
| 204 | viper-delete-backward-char |
| 205 | viper-join-lines |
| 206 | viper-delete-char)) |
| 207 | (memq (viper-event-key last-command-event) |
| 208 | '(up down left right (meta f) (meta b) |
| 209 | (control n) (control p) (control f) (control b))))) |
| 210 | |
| 211 | (defsubst viper-insert-state-pre-command-sentinel () |
| 212 | (or (viper-preserve-cursor-color) |
| 213 | (viper-restore-cursor-color 'after-insert-mode)) |
| 214 | (if (and (memq this-command '(dabbrev-expand hippie-expand)) |
| 215 | (markerp viper-insert-point) |
| 216 | (marker-position viper-insert-point)) |
| 217 | (setq viper-pre-command-point (marker-position viper-insert-point)))) |
| 218 | |
| 219 | (defun viper-R-state-post-command-sentinel () |
| 220 | ;; Restoring cursor color is needed despite |
| 221 | ;; viper-replace-state-pre-command-sentinel: When you jump to another buffer |
| 222 | ;; in another frame, the pre-command hook won't change cursor color to |
| 223 | ;; default in that other frame. So, if the second frame cursor was red and |
| 224 | ;; we set the point outside the replacement region, then the cursor color |
| 225 | ;; will remain red. Restoring the default, below, prevents this. |
| 226 | (if (and (<= (viper-replace-start) (point)) |
| 227 | (<= (point) (viper-replace-end))) |
| 228 | (viper-change-cursor-color |
| 229 | (viper-frame-value viper-replace-overlay-cursor-color)) |
| 230 | (viper-restore-cursor-color 'after-replace-mode))) |
| 231 | |
| 232 | ;; to speed up, don't change cursor color before self-insert |
| 233 | ;; and common move commands |
| 234 | (defsubst viper-replace-state-pre-command-sentinel () |
| 235 | (or (viper-preserve-cursor-color) |
| 236 | (viper-restore-cursor-color 'after-replace-mode))) |
| 237 | |
| 238 | |
| 239 | ;; Make sure we don't delete more than needed. |
| 240 | ;; This is executed at viper-last-posn-in-replace-region |
| 241 | (defsubst viper-trim-replace-chars-to-delete-if-necessary () |
| 242 | (setq viper-replace-chars-to-delete |
| 243 | (max 0 |
| 244 | (min viper-replace-chars-to-delete |
| 245 | ;; Don't delete more than to the end of repl overlay |
| 246 | (viper-chars-in-region |
| 247 | (viper-replace-end) viper-last-posn-in-replace-region) |
| 248 | ;; point is viper-last-posn-in-replace-region now |
| 249 | ;; So, this limits deletion to the end of line |
| 250 | (viper-chars-in-region (point) (viper-line-pos 'end)) |
| 251 | )))) |
| 252 | |
| 253 | |
| 254 | (defun viper-replace-state-post-command-sentinel () |
| 255 | ;; Restoring cursor color is needed despite |
| 256 | ;; viper-replace-state-pre-command-sentinel: When one jumps to another buffer |
| 257 | ;; in another frame, the pre-command hook won't change cursor color to |
| 258 | ;; default in that other frame. So, if the second frame cursor was red and |
| 259 | ;; we set the point outside the replacement region, then the cursor color |
| 260 | ;; will remain red. Restoring the default, below, fixes this problem. |
| 261 | ;; |
| 262 | ;; We optimize for some commands, like self-insert-command, |
| 263 | ;; viper-delete-backward-char, etc., since they either don't change |
| 264 | ;; cursor color or, if they terminate replace mode, the color will be changed |
| 265 | ;; in viper-finish-change |
| 266 | (or (viper-preserve-cursor-color) |
| 267 | (viper-restore-cursor-color 'after-replace-mode)) |
| 268 | (cond |
| 269 | ((eq viper-current-state 'replace-state) |
| 270 | ;; delete characters to compensate for inserted chars. |
| 271 | (let ((replace-boundary (viper-replace-end))) |
| 272 | (save-excursion |
| 273 | (goto-char viper-last-posn-in-replace-region) |
| 274 | (viper-trim-replace-chars-to-delete-if-necessary) |
| 275 | (delete-char viper-replace-chars-to-delete) |
| 276 | (setq viper-replace-chars-to-delete 0) |
| 277 | ;; terminate replace mode if reached replace limit |
| 278 | (if (= viper-last-posn-in-replace-region (viper-replace-end)) |
| 279 | (viper-finish-change))) |
| 280 | |
| 281 | (when (viper-pos-within-region |
| 282 | (point) (viper-replace-start) replace-boundary) |
| 283 | ;; the state may have changed in viper-finish-change above |
| 284 | (if (eq viper-current-state 'replace-state) |
| 285 | (viper-change-cursor-color |
| 286 | (viper-frame-value viper-replace-overlay-cursor-color))) |
| 287 | (setq viper-last-posn-in-replace-region (point-marker))))) |
| 288 | ;; terminate replace mode if changed Viper states. |
| 289 | (t (viper-finish-change)))) |
| 290 | |
| 291 | |
| 292 | ;; changing mode |
| 293 | |
| 294 | ;; Change state to NEW-STATE---either emacs-state, vi-state, or insert-state. |
| 295 | (defun viper-change-state (new-state) |
| 296 | ;; Keep viper-post/pre-command-hooks fresh. |
| 297 | ;; We remove then add viper-post/pre-command-sentinel since it is very |
| 298 | ;; desirable that viper-pre-command-sentinel is the last hook and |
| 299 | ;; viper-post-command-sentinel is the first hook. |
| 300 | |
| 301 | (when (featurep 'xemacs) |
| 302 | (make-local-hook 'viper-after-change-functions) |
| 303 | (make-local-hook 'viper-before-change-functions) |
| 304 | (make-local-hook 'viper-post-command-hooks) |
| 305 | (make-local-hook 'viper-pre-command-hooks)) |
| 306 | |
| 307 | (remove-hook 'post-command-hook 'viper-post-command-sentinel) |
| 308 | (add-hook 'post-command-hook 'viper-post-command-sentinel) |
| 309 | (remove-hook 'pre-command-hook 'viper-pre-command-sentinel) |
| 310 | (add-hook 'pre-command-hook 'viper-pre-command-sentinel t) |
| 311 | ;; These hooks will be added back if switching to insert/replace mode |
| 312 | (remove-hook 'viper-post-command-hooks |
| 313 | 'viper-insert-state-post-command-sentinel 'local) |
| 314 | (remove-hook 'viper-pre-command-hooks |
| 315 | 'viper-insert-state-pre-command-sentinel 'local) |
| 316 | (setq viper-intermediate-command nil) |
| 317 | (cond ((eq new-state 'vi-state) |
| 318 | (cond ((member viper-current-state '(insert-state replace-state)) |
| 319 | |
| 320 | ;; move viper-last-posn-while-in-insert-state |
| 321 | ;; This is a normal hook that is executed in insert/replace |
| 322 | ;; states after each command. In Vi/Emacs state, it does |
| 323 | ;; nothing. We need to execute it here to make sure that |
| 324 | ;; the last posn was recorded when we hit ESC. |
| 325 | ;; It may be left unrecorded if the last thing done in |
| 326 | ;; insert/repl state was dabbrev-expansion or abbrev |
| 327 | ;; expansion caused by hitting ESC |
| 328 | (viper-insert-state-post-command-sentinel) |
| 329 | |
| 330 | (condition-case conds |
| 331 | (progn |
| 332 | (viper-save-last-insertion |
| 333 | viper-insert-point |
| 334 | viper-last-posn-while-in-insert-state) |
| 335 | (if viper-began-as-replace |
| 336 | (setq viper-began-as-replace nil) |
| 337 | ;; repeat insert commands if numerical arg > 1 |
| 338 | (save-excursion |
| 339 | (viper-repeat-insert-command)))) |
| 340 | (error |
| 341 | (viper-message-conditions conds))) |
| 342 | |
| 343 | (if (> (length viper-last-insertion) 0) |
| 344 | (viper-push-onto-ring viper-last-insertion |
| 345 | 'viper-insertion-ring)) |
| 346 | |
| 347 | (if viper-ESC-moves-cursor-back |
| 348 | (or (bolp) (viper-beginning-of-field) (backward-char 1)))) |
| 349 | )) |
| 350 | |
| 351 | ;; insert or replace |
| 352 | ((memq new-state '(insert-state replace-state)) |
| 353 | (if (memq viper-current-state '(emacs-state vi-state)) |
| 354 | (viper-move-marker-locally 'viper-insert-point (point))) |
| 355 | (viper-move-marker-locally |
| 356 | 'viper-last-posn-while-in-insert-state (point)) |
| 357 | (add-hook 'viper-post-command-hooks |
| 358 | 'viper-insert-state-post-command-sentinel t 'local) |
| 359 | (add-hook 'viper-pre-command-hooks |
| 360 | 'viper-insert-state-pre-command-sentinel t 'local)) |
| 361 | ) ; outermost cond |
| 362 | |
| 363 | ;; Nothing needs to be done to switch to emacs mode! Just set some |
| 364 | ;; variables, which is already done in viper-change-state-to-emacs! |
| 365 | |
| 366 | ;; ISO accents |
| 367 | ;; always turn off iso-accents-mode in vi-state, or else we won't be able to |
| 368 | ;; use the keys `,',^ , as they will do accents instead of Vi actions. |
| 369 | (cond ((eq new-state 'vi-state) (viper-set-iso-accents-mode nil));accents off |
| 370 | (viper-automatic-iso-accents (viper-set-iso-accents-mode t));accents on |
| 371 | (t (viper-set-iso-accents-mode nil))) |
| 372 | ;; Always turn off quail mode in vi state |
| 373 | (cond ((eq new-state 'vi-state) (viper-set-input-method nil)) ;intl input off |
| 374 | (viper-special-input-method (viper-set-input-method t)) ;intl input on |
| 375 | (t (viper-set-input-method nil))) |
| 376 | |
| 377 | (setq viper-current-state new-state) |
| 378 | |
| 379 | (viper-update-syntax-classes) |
| 380 | (viper-normalize-minor-mode-map-alist) |
| 381 | (viper-adjust-keys-for new-state) |
| 382 | (viper-set-mode-vars-for new-state) |
| 383 | (viper-refresh-mode-line) |
| 384 | ) |
| 385 | |
| 386 | |
| 387 | (defun viper-adjust-keys-for (state) |
| 388 | "Make necessary adjustments to keymaps before entering STATE." |
| 389 | (cond ((memq state '(insert-state replace-state)) |
| 390 | (if viper-auto-indent |
| 391 | (progn |
| 392 | (define-key viper-insert-basic-map "\C-m" 'viper-autoindent) |
| 393 | (if viper-want-emacs-keys-in-insert |
| 394 | ;; expert |
| 395 | (define-key viper-insert-basic-map "\C-j" nil) |
| 396 | ;; novice |
| 397 | (define-key viper-insert-basic-map "\C-j" 'viper-autoindent))) |
| 398 | (define-key viper-insert-basic-map "\C-m" nil) |
| 399 | (define-key viper-insert-basic-map "\C-j" nil)) |
| 400 | |
| 401 | (setq viper-insert-diehard-minor-mode |
| 402 | (not viper-want-emacs-keys-in-insert)) |
| 403 | |
| 404 | (if viper-want-ctl-h-help |
| 405 | (progn |
| 406 | (define-key viper-insert-basic-map "\C-h" 'help-command) |
| 407 | (define-key viper-replace-map "\C-h" 'help-command)) |
| 408 | (define-key viper-insert-basic-map |
| 409 | "\C-h" 'viper-del-backward-char-in-insert) |
| 410 | (define-key viper-replace-map |
| 411 | "\C-h" 'viper-del-backward-char-in-replace)) |
| 412 | ;; In XEmacs, C-h overrides backspace, so we make sure it doesn't. |
| 413 | (define-key viper-insert-basic-map |
| 414 | [backspace] 'viper-del-backward-char-in-insert) |
| 415 | (define-key viper-replace-map |
| 416 | [backspace] 'viper-del-backward-char-in-replace) |
| 417 | ) ; end insert/replace case |
| 418 | (t ; Vi state |
| 419 | (setq viper-vi-diehard-minor-mode (not viper-want-emacs-keys-in-vi)) |
| 420 | (if viper-want-ctl-h-help |
| 421 | (define-key viper-vi-basic-map "\C-h" 'help-command) |
| 422 | (define-key viper-vi-basic-map "\C-h" 'viper-backward-char)) |
| 423 | ;; In XEmacs, C-h overrides backspace, so we make sure it doesn't. |
| 424 | (define-key viper-vi-basic-map [backspace] 'viper-backward-char)) |
| 425 | )) |
| 426 | |
| 427 | |
| 428 | ;; Normalizes minor-mode-map-alist by putting Viper keymaps first. |
| 429 | ;; This ensures that Viper bindings are in effect, regardless of which minor |
| 430 | ;; modes were turned on by the user or by other packages. |
| 431 | (defun viper-normalize-minor-mode-map-alist () |
| 432 | (setq viper--intercept-key-maps |
| 433 | (list |
| 434 | (cons 'viper-vi-intercept-minor-mode viper-vi-intercept-map) |
| 435 | (cons 'viper-insert-intercept-minor-mode viper-insert-intercept-map) |
| 436 | (cons 'viper-emacs-intercept-minor-mode viper-emacs-intercept-map) |
| 437 | )) |
| 438 | (setq viper--key-maps |
| 439 | (list (cons 'viper-vi-minibuffer-minor-mode viper-minibuffer-map) |
| 440 | (cons 'viper-vi-local-user-minor-mode viper-vi-local-user-map) |
| 441 | (cons 'viper-vi-kbd-minor-mode viper-vi-kbd-map) |
| 442 | (cons 'viper-vi-global-user-minor-mode viper-vi-global-user-map) |
| 443 | (cons 'viper-vi-state-modifier-minor-mode |
| 444 | (if (keymapp |
| 445 | (cdr (assoc major-mode viper-vi-state-modifier-alist))) |
| 446 | (cdr (assoc major-mode viper-vi-state-modifier-alist)) |
| 447 | viper-empty-keymap)) |
| 448 | (cons 'viper-vi-diehard-minor-mode viper-vi-diehard-map) |
| 449 | (cons 'viper-vi-basic-minor-mode viper-vi-basic-map) |
| 450 | (cons 'viper-replace-minor-mode viper-replace-map) |
| 451 | ;; viper-insert-minibuffer-minor-mode must come after |
| 452 | ;; viper-replace-minor-mode |
| 453 | (cons 'viper-insert-minibuffer-minor-mode |
| 454 | viper-minibuffer-map) |
| 455 | (cons 'viper-insert-local-user-minor-mode |
| 456 | viper-insert-local-user-map) |
| 457 | (cons 'viper-insert-kbd-minor-mode viper-insert-kbd-map) |
| 458 | (cons 'viper-insert-global-user-minor-mode |
| 459 | viper-insert-global-user-map) |
| 460 | (cons 'viper-insert-state-modifier-minor-mode |
| 461 | (if (keymapp |
| 462 | (cdr (assoc major-mode |
| 463 | viper-insert-state-modifier-alist))) |
| 464 | (cdr (assoc major-mode |
| 465 | viper-insert-state-modifier-alist)) |
| 466 | viper-empty-keymap)) |
| 467 | (cons 'viper-insert-diehard-minor-mode viper-insert-diehard-map) |
| 468 | (cons 'viper-insert-basic-minor-mode viper-insert-basic-map) |
| 469 | (cons 'viper-emacs-local-user-minor-mode |
| 470 | viper-emacs-local-user-map) |
| 471 | (cons 'viper-emacs-kbd-minor-mode viper-emacs-kbd-map) |
| 472 | (cons 'viper-emacs-global-user-minor-mode |
| 473 | viper-emacs-global-user-map) |
| 474 | (cons 'viper-emacs-state-modifier-minor-mode |
| 475 | (if (keymapp |
| 476 | (cdr |
| 477 | (assoc major-mode viper-emacs-state-modifier-alist))) |
| 478 | (cdr |
| 479 | (assoc major-mode viper-emacs-state-modifier-alist)) |
| 480 | viper-empty-keymap)) |
| 481 | )) |
| 482 | |
| 483 | ;; This var is not local in Emacs, so we make it local. It must be local |
| 484 | ;; because although the stack of minor modes can be the same for all buffers, |
| 485 | ;; the associated *keymaps* can be different. In Viper, |
| 486 | ;; viper-vi-local-user-map, viper-insert-local-user-map, and others can have |
| 487 | ;; different keymaps for different buffers. Also, the keymaps associated |
| 488 | ;; with viper-vi/insert-state-modifier-minor-mode can be different. |
| 489 | ;; ***This is needed only in case emulation-mode-map-alists is not defined. |
| 490 | ;; In emacs with emulation-mode-map-alists, nothing needs to be done |
| 491 | (unless |
| 492 | (and (fboundp 'add-to-ordered-list) (boundp 'emulation-mode-map-alists)) |
| 493 | (set (make-local-variable 'minor-mode-map-alist) |
| 494 | (viper-append-filter-alist |
| 495 | (append viper--intercept-key-maps viper--key-maps) |
| 496 | minor-mode-map-alist))) |
| 497 | ) |
| 498 | |
| 499 | |
| 500 | \f |
| 501 | ;; Viper mode-changing commands and utilities |
| 502 | |
| 503 | ;; Modifies mode-line-buffer-identification. |
| 504 | (defun viper-refresh-mode-line () |
| 505 | (set (make-local-variable 'viper-mode-string) |
| 506 | (cond ((eq viper-current-state 'emacs-state) viper-emacs-state-id) |
| 507 | ((eq viper-current-state 'vi-state) viper-vi-state-id) |
| 508 | ((eq viper-current-state 'replace-state) viper-replace-state-id) |
| 509 | ((eq viper-current-state 'insert-state) viper-insert-state-id))) |
| 510 | |
| 511 | ;; Sets Viper mode string in global-mode-string |
| 512 | (force-mode-line-update)) |
| 513 | |
| 514 | |
| 515 | ;; Switch from Insert state to Vi state. |
| 516 | (defun viper-exit-insert-state () |
| 517 | (interactive) |
| 518 | (viper-change-state-to-vi)) |
| 519 | |
| 520 | (defun viper-set-mode-vars-for (state) |
| 521 | "Sets Viper minor mode variables to put Viper's state STATE in effect." |
| 522 | |
| 523 | ;; Emacs state |
| 524 | (setq viper-vi-minibuffer-minor-mode nil |
| 525 | viper-insert-minibuffer-minor-mode nil |
| 526 | viper-vi-intercept-minor-mode nil |
| 527 | viper-insert-intercept-minor-mode nil |
| 528 | |
| 529 | viper-vi-local-user-minor-mode nil |
| 530 | viper-vi-kbd-minor-mode nil |
| 531 | viper-vi-global-user-minor-mode nil |
| 532 | viper-vi-state-modifier-minor-mode nil |
| 533 | viper-vi-diehard-minor-mode nil |
| 534 | viper-vi-basic-minor-mode nil |
| 535 | |
| 536 | viper-replace-minor-mode nil |
| 537 | |
| 538 | viper-insert-local-user-minor-mode nil |
| 539 | viper-insert-kbd-minor-mode nil |
| 540 | viper-insert-global-user-minor-mode nil |
| 541 | viper-insert-state-modifier-minor-mode nil |
| 542 | viper-insert-diehard-minor-mode nil |
| 543 | viper-insert-basic-minor-mode nil |
| 544 | viper-emacs-intercept-minor-mode t |
| 545 | viper-emacs-local-user-minor-mode t |
| 546 | viper-emacs-kbd-minor-mode (not (viper-is-in-minibuffer)) |
| 547 | viper-emacs-global-user-minor-mode t |
| 548 | viper-emacs-state-modifier-minor-mode t |
| 549 | ) |
| 550 | |
| 551 | ;; Vi state |
| 552 | (if (eq state 'vi-state) ; adjust for vi-state |
| 553 | (setq |
| 554 | viper-vi-intercept-minor-mode t |
| 555 | viper-vi-minibuffer-minor-mode (viper-is-in-minibuffer) |
| 556 | viper-vi-local-user-minor-mode t |
| 557 | viper-vi-kbd-minor-mode (not (viper-is-in-minibuffer)) |
| 558 | viper-vi-global-user-minor-mode t |
| 559 | viper-vi-state-modifier-minor-mode t |
| 560 | ;; don't let the diehard keymap block command completion |
| 561 | ;; and other things in the minibuffer |
| 562 | viper-vi-diehard-minor-mode (not |
| 563 | (or viper-want-emacs-keys-in-vi |
| 564 | (viper-is-in-minibuffer))) |
| 565 | viper-vi-basic-minor-mode t |
| 566 | viper-emacs-intercept-minor-mode nil |
| 567 | viper-emacs-local-user-minor-mode nil |
| 568 | viper-emacs-kbd-minor-mode nil |
| 569 | viper-emacs-global-user-minor-mode nil |
| 570 | viper-emacs-state-modifier-minor-mode nil |
| 571 | )) |
| 572 | |
| 573 | ;; Insert and Replace states |
| 574 | (if (member state '(insert-state replace-state)) |
| 575 | (setq |
| 576 | viper-insert-intercept-minor-mode t |
| 577 | viper-replace-minor-mode (eq state 'replace-state) |
| 578 | viper-insert-minibuffer-minor-mode (viper-is-in-minibuffer) |
| 579 | viper-insert-local-user-minor-mode t |
| 580 | viper-insert-kbd-minor-mode (not (viper-is-in-minibuffer)) |
| 581 | viper-insert-global-user-minor-mode t |
| 582 | viper-insert-state-modifier-minor-mode t |
| 583 | ;; don't let the diehard keymap block command completion |
| 584 | ;; and other things in the minibuffer |
| 585 | viper-insert-diehard-minor-mode (not |
| 586 | (or |
| 587 | viper-want-emacs-keys-in-insert |
| 588 | (viper-is-in-minibuffer))) |
| 589 | viper-insert-basic-minor-mode t |
| 590 | viper-emacs-intercept-minor-mode nil |
| 591 | viper-emacs-local-user-minor-mode nil |
| 592 | viper-emacs-kbd-minor-mode nil |
| 593 | viper-emacs-global-user-minor-mode nil |
| 594 | viper-emacs-state-modifier-minor-mode nil |
| 595 | )) |
| 596 | |
| 597 | ;; minibuffer faces |
| 598 | (if (viper-has-face-support-p) |
| 599 | (setq viper-minibuffer-current-face |
| 600 | (cond ((eq state 'emacs-state) viper-minibuffer-emacs-face) |
| 601 | ((eq state 'vi-state) viper-minibuffer-vi-face) |
| 602 | ((memq state '(insert-state replace-state)) |
| 603 | viper-minibuffer-insert-face)))) |
| 604 | |
| 605 | (if (viper-is-in-minibuffer) |
| 606 | (viper-set-minibuffer-overlay)) |
| 607 | ) |
| 608 | |
| 609 | ;; This also takes care of the annoying incomplete lines in files. |
| 610 | ;; Also, this fixes `undo' to work vi-style for complex commands. |
| 611 | (defun viper-change-state-to-vi () |
| 612 | "Change Viper state to Vi." |
| 613 | (interactive) |
| 614 | (if (and viper-first-time (not (viper-is-in-minibuffer))) |
| 615 | (viper-mode) |
| 616 | (if overwrite-mode (overwrite-mode -1)) |
| 617 | (or (viper-overlay-p viper-replace-overlay) |
| 618 | (viper-set-replace-overlay (point-min) (point-min))) |
| 619 | (viper-hide-replace-overlay) |
| 620 | ;; Expand abbrevs iff the previous character has word syntax. |
| 621 | (and abbrev-mode |
| 622 | (eq (char-syntax (preceding-char)) ?w) |
| 623 | (expand-abbrev)) |
| 624 | (if (and auto-fill-function (> (current-column) fill-column)) |
| 625 | (funcall auto-fill-function)) |
| 626 | ;; don't leave whitespace lines around |
| 627 | (if (and (memq last-command |
| 628 | '(viper-autoindent |
| 629 | viper-open-line viper-Open-line |
| 630 | viper-replace-state-exit-cmd)) |
| 631 | (viper-over-whitespace-line)) |
| 632 | (indent-to-left-margin)) |
| 633 | (viper-add-newline-at-eob-if-necessary) |
| 634 | (viper-adjust-undo) |
| 635 | |
| 636 | (if (eq viper-current-state 'emacs-state) |
| 637 | (viper-restore-cursor-color 'after-emacs-mode) |
| 638 | (viper-restore-cursor-color 'after-insert-mode)) |
| 639 | |
| 640 | (viper-change-state 'vi-state) |
| 641 | |
| 642 | ;; Protect against user errors in hooks |
| 643 | (condition-case conds |
| 644 | (run-hooks 'viper-vi-state-hook) |
| 645 | (error |
| 646 | (viper-message-conditions conds))))) |
| 647 | |
| 648 | (defun viper-change-state-to-insert () |
| 649 | "Change Viper state to Insert." |
| 650 | (interactive) |
| 651 | (viper-change-state 'insert-state) |
| 652 | |
| 653 | (or (viper-overlay-p viper-replace-overlay) |
| 654 | (viper-set-replace-overlay (point-min) (point-min))) |
| 655 | (viper-hide-replace-overlay) |
| 656 | |
| 657 | (let ((icolor (viper-frame-value viper-insert-state-cursor-color))) |
| 658 | (or (stringp (viper-get-saved-cursor-color-in-insert-mode)) |
| 659 | (string= (viper-get-cursor-color) icolor) |
| 660 | (viper-save-cursor-color 'before-insert-mode)) |
| 661 | (viper-change-cursor-color icolor)) |
| 662 | |
| 663 | ;; Protect against user errors in hooks |
| 664 | (condition-case conds |
| 665 | (run-hooks 'viper-insert-state-hook) |
| 666 | (error |
| 667 | (viper-message-conditions conds)))) |
| 668 | |
| 669 | (defsubst viper-downgrade-to-insert () |
| 670 | ;; Protect against user errors in hooks |
| 671 | (condition-case conds |
| 672 | (run-hooks 'viper-insert-state-hook) |
| 673 | (error |
| 674 | (viper-message-conditions conds))) |
| 675 | (setq viper-current-state 'insert-state |
| 676 | viper-replace-minor-mode nil)) |
| 677 | |
| 678 | |
| 679 | |
| 680 | ;; Change to replace state. When the end of replacement region is reached, |
| 681 | ;; replace state changes to insert state. |
| 682 | (defun viper-change-state-to-replace (&optional non-R-cmd) |
| 683 | (viper-change-state 'replace-state) |
| 684 | ;; Run insert-state-hook |
| 685 | (condition-case conds |
| 686 | (run-hooks 'viper-insert-state-hook 'viper-replace-state-hook) |
| 687 | (error |
| 688 | (viper-message-conditions conds))) |
| 689 | |
| 690 | (if non-R-cmd |
| 691 | (viper-start-replace) |
| 692 | ;; 'R' is implemented using Emacs's overwrite-mode |
| 693 | (viper-start-R-mode)) |
| 694 | ) |
| 695 | |
| 696 | |
| 697 | (defun viper-change-state-to-emacs () |
| 698 | "Change Viper state to Emacs." |
| 699 | (interactive) |
| 700 | (or (viper-overlay-p viper-replace-overlay) |
| 701 | (viper-set-replace-overlay (point-min) (point-min))) |
| 702 | (viper-hide-replace-overlay) |
| 703 | |
| 704 | (let ((ecolor (viper-frame-value viper-emacs-state-cursor-color))) |
| 705 | (when ecolor |
| 706 | (or (stringp (viper-get-saved-cursor-color-in-emacs-mode)) |
| 707 | (string= (viper-get-cursor-color) ecolor) |
| 708 | (viper-save-cursor-color 'before-emacs-mode)) |
| 709 | (viper-change-cursor-color ecolor))) |
| 710 | |
| 711 | (viper-change-state 'emacs-state) |
| 712 | |
| 713 | ;; Protect against user errors in hooks |
| 714 | (condition-case conds |
| 715 | (run-hooks 'viper-emacs-state-hook) |
| 716 | (error |
| 717 | (viper-message-conditions conds)))) |
| 718 | |
| 719 | ;; escape to emacs mode temporarily |
| 720 | (defun viper-escape-to-emacs (arg &optional events) |
| 721 | "Escape to Emacs state from Vi state for one Emacs command. |
| 722 | ARG is used as the prefix value for the executed command. If |
| 723 | EVENTS is a list of events, which become the beginning of the command." |
| 724 | (interactive "P") |
| 725 | (if (viper= (viper-last-command-char) ?\\) |
| 726 | (message "Switched to EMACS state for the next command...")) |
| 727 | (viper-escape-to-state arg events 'emacs-state)) |
| 728 | |
| 729 | ;; escape to Vi mode temporarily |
| 730 | (defun viper-escape-to-vi (arg) |
| 731 | "Escape from Emacs state to Vi state for one Vi 1-character command. |
| 732 | If the Vi command that the user types has a prefix argument, e.g., `d2w', then |
| 733 | Vi's prefix argument will be used. Otherwise, the prefix argument passed to |
| 734 | `viper-escape-to-vi' is used." |
| 735 | (interactive "P") |
| 736 | (message "Switched to VI state for the next command...") |
| 737 | (viper-escape-to-state arg nil 'vi-state)) |
| 738 | |
| 739 | ;; Escape to STATE mode for one Emacs command. |
| 740 | (defun viper-escape-to-state (arg events state) |
| 741 | ;;(let (com key prefix-arg) |
| 742 | (let (com key) |
| 743 | ;; this temporarily turns off Viper's minor mode keymaps |
| 744 | (viper-set-mode-vars-for state) |
| 745 | (viper-normalize-minor-mode-map-alist) |
| 746 | (if events (viper-set-unread-command-events events)) |
| 747 | |
| 748 | ;; protect against keyboard quit and other errors |
| 749 | (condition-case nil |
| 750 | (let (viper-vi-kbd-minor-mode |
| 751 | viper-insert-kbd-minor-mode |
| 752 | viper-emacs-kbd-minor-mode) |
| 753 | (unwind-protect |
| 754 | (progn |
| 755 | (setq com |
| 756 | (key-binding (setq key (viper-read-key-sequence nil)))) |
| 757 | ;; In case of binding indirection--chase definitions. |
| 758 | ;; Have to do it here because we execute this command under |
| 759 | ;; different keymaps, so command-execute may not do the |
| 760 | ;; right thing there |
| 761 | (while (vectorp com) (setq com (key-binding com)))) |
| 762 | nil) |
| 763 | ;; Execute command com in the original Viper state, not in state |
| 764 | ;; `state'. Otherwise, if we switch buffers while executing the |
| 765 | ;; escaped to command, Viper's mode vars will remain those of |
| 766 | ;; `state'. When we return to the orig buffer, the bindings will be |
| 767 | ;; screwed up. |
| 768 | (viper-set-mode-vars-for viper-current-state) |
| 769 | |
| 770 | ;; this-command, last-command-char, last-command-event |
| 771 | (setq this-command com) |
| 772 | (if (featurep 'xemacs) |
| 773 | ;; XEmacs represents key sequences as vectors |
| 774 | (setq last-command-event |
| 775 | (viper-copy-event (viper-seq-last-elt key)) |
| 776 | last-command-char (event-to-character last-command-event)) |
| 777 | ;; Emacs represents them as sequences (str or vec) |
| 778 | (setq last-command-event |
| 779 | (viper-copy-event (viper-seq-last-elt key)))) |
| 780 | |
| 781 | (if (commandp com) |
| 782 | ;; pretend that current state is the state we escaped to |
| 783 | (let ((viper-current-state state)) |
| 784 | (setq prefix-arg (or prefix-arg arg)) |
| 785 | (command-execute com))) |
| 786 | ) |
| 787 | (quit (ding)) |
| 788 | (error (beep 1)))) |
| 789 | ;; set state in the new buffer |
| 790 | (viper-set-mode-vars-for viper-current-state)) |
| 791 | |
| 792 | ;; This is used in order to allow reading characters according to the input |
| 793 | ;; method. The character is read in emacs and inserted into the buffer. |
| 794 | ;; If an input method is in effect, this might |
| 795 | ;; cause several characters to be combined into one. |
| 796 | ;; Also takes care of the iso-accents mode |
| 797 | (defun viper-special-read-and-insert-char () |
| 798 | (viper-set-mode-vars-for 'emacs-state) |
| 799 | (viper-normalize-minor-mode-map-alist) |
| 800 | (if viper-special-input-method |
| 801 | (viper-set-input-method t)) |
| 802 | (if viper-automatic-iso-accents |
| 803 | (viper-set-iso-accents-mode t)) |
| 804 | (condition-case nil |
| 805 | (let (viper-vi-kbd-minor-mode |
| 806 | viper-insert-kbd-minor-mode |
| 807 | viper-emacs-kbd-minor-mode |
| 808 | ch) |
| 809 | (cond ((and viper-special-input-method |
| 810 | (featurep 'emacs) |
| 811 | (fboundp 'quail-input-method)) |
| 812 | ;; (let ...) is used to restore unread-command-events to the |
| 813 | ;; original state. We don't want anything left in there after |
| 814 | ;; key translation. (Such left-overs are possible if the user |
| 815 | ;; types a regular key.) |
| 816 | (let (unread-command-events) |
| 817 | ;; The next cmd and viper-set-unread-command-events |
| 818 | ;; are intended to prevent the input method |
| 819 | ;; from swallowing ^M, ^Q and other special characters |
| 820 | (setq ch (read-char-exclusive)) |
| 821 | ;; replace ^M with the newline |
| 822 | (if (eq ch ?\C-m) (setq ch ?\n)) |
| 823 | ;; Make sure ^V and ^Q work as quotation chars |
| 824 | (if (memq ch '(?\C-v ?\C-q)) |
| 825 | (setq ch (read-char-exclusive))) |
| 826 | (viper-set-unread-command-events ch) |
| 827 | (quail-input-method nil) |
| 828 | |
| 829 | (if (and ch (string= quail-current-str "")) |
| 830 | (insert ch) |
| 831 | (insert quail-current-str)) |
| 832 | (setq ch (or ch |
| 833 | (aref quail-current-str |
| 834 | (1- (length quail-current-str))))) |
| 835 | )) |
| 836 | ((and viper-special-input-method |
| 837 | (featurep 'xemacs) |
| 838 | (fboundp 'quail-start-translation)) |
| 839 | ;; same as above but for XEmacs, which doesn't have |
| 840 | ;; quail-input-method |
| 841 | (let (unread-command-events) |
| 842 | (setq ch (read-char-exclusive)) |
| 843 | ;; replace ^M with the newline |
| 844 | (if (eq ch ?\C-m) (setq ch ?\n)) |
| 845 | ;; Make sure ^V and ^Q work as quotation chars |
| 846 | (if (memq ch '(?\C-v ?\C-q)) |
| 847 | (setq ch (read-char-exclusive))) |
| 848 | (viper-set-unread-command-events ch) |
| 849 | (quail-start-translation nil) |
| 850 | |
| 851 | (if (and ch (string= quail-current-str "")) |
| 852 | (insert ch) |
| 853 | (insert quail-current-str)) |
| 854 | (setq ch (or ch |
| 855 | (aref quail-current-str |
| 856 | (1- (length quail-current-str))))) |
| 857 | )) |
| 858 | ((and (boundp 'iso-accents-mode) iso-accents-mode) |
| 859 | (setq ch (aref (read-key-sequence nil) 0)) |
| 860 | ;; replace ^M with the newline |
| 861 | (if (eq ch ?\C-m) (setq ch ?\n)) |
| 862 | ;; Make sure ^V and ^Q work as quotation chars |
| 863 | (if (memq ch '(?\C-v ?\C-q)) |
| 864 | (setq ch (aref (read-key-sequence nil) 0))) |
| 865 | (insert ch)) |
| 866 | (t |
| 867 | ;;(setq ch (read-char-exclusive)) |
| 868 | (setq ch (aref (read-key-sequence nil) 0)) |
| 869 | (if (featurep 'xemacs) |
| 870 | (setq ch (event-to-character ch))) |
| 871 | ;; replace ^M with the newline |
| 872 | (if (eq ch ?\C-m) (setq ch ?\n)) |
| 873 | ;; Make sure ^V and ^Q work as quotation chars |
| 874 | (if (memq ch '(?\C-v ?\C-q)) |
| 875 | (progn |
| 876 | ;;(setq ch (read-char-exclusive)) |
| 877 | (setq ch (aref (read-key-sequence nil) 0)) |
| 878 | (if (featurep 'xemacs) |
| 879 | (setq ch (event-to-character ch)))) |
| 880 | ) |
| 881 | (insert ch)) |
| 882 | ) |
| 883 | (setq last-command-event |
| 884 | (viper-copy-event (if (featurep 'xemacs) |
| 885 | (character-to-event ch) ch))) |
| 886 | ) ; let |
| 887 | (error nil) |
| 888 | ) ; condition-case |
| 889 | |
| 890 | (viper-set-input-method nil) |
| 891 | (viper-set-iso-accents-mode nil) |
| 892 | (viper-set-mode-vars-for viper-current-state) |
| 893 | ) |
| 894 | |
| 895 | |
| 896 | (defun viper-exec-form-in-vi (form) |
| 897 | "Execute FORM in Vi state, regardless of the current Vi state." |
| 898 | (let ((buff (current-buffer)) |
| 899 | result) |
| 900 | (viper-set-mode-vars-for 'vi-state) |
| 901 | |
| 902 | (condition-case nil |
| 903 | (let (viper-vi-kbd-minor-mode) ; execute without kbd macros |
| 904 | (setq result (eval form))) |
| 905 | (error |
| 906 | (signal 'quit nil))) |
| 907 | |
| 908 | (if (not (equal buff (current-buffer))) ; cmd switched buffer |
| 909 | (with-current-buffer buff |
| 910 | (viper-set-mode-vars-for viper-current-state))) |
| 911 | (viper-set-mode-vars-for viper-current-state) |
| 912 | result)) |
| 913 | |
| 914 | (defun viper-exec-form-in-emacs (form) |
| 915 | "Execute FORM in Emacs, temporarily disabling Viper's minor modes. |
| 916 | Similar to `viper-escape-to-emacs', but accepts forms rather than keystrokes." |
| 917 | (let ((buff (current-buffer)) |
| 918 | result) |
| 919 | (viper-set-mode-vars-for 'emacs-state) |
| 920 | (setq result (eval form)) |
| 921 | (if (not (equal buff (current-buffer))) ; cmd switched buffer |
| 922 | (with-current-buffer buff |
| 923 | (viper-set-mode-vars-for viper-current-state))) |
| 924 | (viper-set-mode-vars-for viper-current-state) |
| 925 | result)) |
| 926 | |
| 927 | ;; This executes the last kbd event in emacs mode. Is used when we want to |
| 928 | ;; interpret certain keys directly in emacs (as, for example, in comint mode). |
| 929 | (defun viper-exec-key-in-emacs (arg) |
| 930 | (interactive "P") |
| 931 | (viper-escape-to-emacs arg last-command-event)) |
| 932 | |
| 933 | |
| 934 | ;; This is needed because minor modes sometimes override essential Viper |
| 935 | ;; bindings. By letting Viper know which files these modes are in, it will |
| 936 | ;; arrange to reorganize minor-mode-map-alist so that things will work right. |
| 937 | (defun viper-harness-minor-mode (load-file) |
| 938 | "Familiarize Viper with a minor mode defined in LOAD-FILE. |
| 939 | Minor modes that have their own keymaps may overshadow Viper keymaps. |
| 940 | This function is designed to make Viper aware of the packages that define |
| 941 | such minor modes. |
| 942 | Usage: |
| 943 | (viper-harness-minor-mode load-file) |
| 944 | |
| 945 | LOAD-FILE is the name of the file where the specific minor mode is defined. |
| 946 | Suffixes such as .el or .elc should be stripped." |
| 947 | |
| 948 | (interactive "sEnter name of the load file: ") |
| 949 | |
| 950 | (eval-after-load load-file '(viper-normalize-minor-mode-map-alist)) |
| 951 | |
| 952 | ;; Change the default for minor-mode-map-alist each time a harnessed minor |
| 953 | ;; mode adds its own keymap to the a-list. |
| 954 | (unless |
| 955 | (and (fboundp 'add-to-ordered-list) (boundp 'emulation-mode-map-alists)) |
| 956 | (eval-after-load |
| 957 | load-file '(setq-default minor-mode-map-alist minor-mode-map-alist))) |
| 958 | ) |
| 959 | |
| 960 | |
| 961 | (defun viper-ESC (arg) |
| 962 | "Emulate ESC key in Emacs. |
| 963 | Prevents multiple escape keystrokes if viper-no-multiple-ESC is true. |
| 964 | If viper-no-multiple-ESC is 'twice double ESC would ding in vi-state. |
| 965 | Other ESC sequences are emulated via the current Emacs's major mode |
| 966 | keymap. This is more convenient on TTYs, since this won't block |
| 967 | function keys such as up, down, etc. ESC will also will also work as |
| 968 | a Meta key in this case. When viper-no-multiple-ESC is nil, ESC works |
| 969 | as a Meta key and any number of multiple escapes are allowed." |
| 970 | (interactive "P") |
| 971 | (let (char) |
| 972 | (cond ((and (not viper-no-multiple-ESC) (eq viper-current-state 'vi-state)) |
| 973 | (setq char (viper-read-char-exclusive)) |
| 974 | (viper-escape-to-emacs arg (list ?\e char) )) |
| 975 | ((and (eq viper-no-multiple-ESC 'twice) |
| 976 | (eq viper-current-state 'vi-state)) |
| 977 | (setq char (viper-read-char-exclusive)) |
| 978 | (if (= char (string-to-char viper-ESC-key)) |
| 979 | (ding) |
| 980 | (viper-escape-to-emacs arg (list ?\e char) ))) |
| 981 | (t (ding))) |
| 982 | )) |
| 983 | |
| 984 | (defun viper-alternate-Meta-key (arg) |
| 985 | "Simulate Emacs Meta key." |
| 986 | (interactive "P") |
| 987 | (sit-for 1) (message "ESC-") |
| 988 | (viper-escape-to-emacs arg '(?\e))) |
| 989 | |
| 990 | (defun viper-toggle-key-action () |
| 991 | "Action bound to `viper-toggle-key'." |
| 992 | (interactive) |
| 993 | (if (and (< viper-expert-level 2) (equal viper-toggle-key "\C-z")) |
| 994 | (if (viper-window-display-p) |
| 995 | (viper-iconify) |
| 996 | (suspend-emacs)) |
| 997 | (viper-change-state-to-emacs))) |
| 998 | |
| 999 | \f |
| 1000 | ;; Intercept ESC sequences on dumb terminals. |
| 1001 | ;; Based on the idea contributed by Marcelino Veiga Tuimil <mveiga@dit.upm.es> |
| 1002 | |
| 1003 | ;; Check if last key was ESC and if so try to reread it as a function key. |
| 1004 | ;; But only if there are characters to read during a very short time. |
| 1005 | ;; Returns the last event, if any. |
| 1006 | (defun viper-envelop-ESC-key () |
| 1007 | (let ((event last-input-event) |
| 1008 | (keyseq [nil]) |
| 1009 | (inhibit-quit t)) |
| 1010 | (if (viper-ESC-event-p event) |
| 1011 | (progn |
| 1012 | ;; Some versions of Emacs (eg., 22.50.8 have a bug, which makes even |
| 1013 | ;; a single ESC into ;; a fast keyseq. To guard against this, we |
| 1014 | ;; added a check if there are other events as well. Keep the next |
| 1015 | ;; line for the next time the bug reappears, so that will remember to |
| 1016 | ;; report it. |
| 1017 | ;;(if (and (viper-fast-keysequence-p) unread-command-events) |
| 1018 | (if (viper-fast-keysequence-p) ;; for Emacsen without the above bug |
| 1019 | (progn |
| 1020 | (let (minor-mode-map-alist emulation-mode-map-alists) |
| 1021 | (viper-set-unread-command-events event) |
| 1022 | (setq keyseq (read-key-sequence nil 'continue-echo)) |
| 1023 | ) ; let |
| 1024 | ;; If keyseq translates into something that still has ESC |
| 1025 | ;; at the beginning, separate ESC from the rest of the seq. |
| 1026 | ;; In XEmacs we check for events that are keypress meta-key |
| 1027 | ;; and convert them into [escape key] |
| 1028 | ;; |
| 1029 | ;; This is needed for the following reason: |
| 1030 | ;; If ESC is the first symbol, we interpret it as if the |
| 1031 | ;; user typed ESC and then quickly some other symbols. |
| 1032 | ;; If ESC is not the first one, then the key sequence |
| 1033 | ;; entered was apparently translated into a function key or |
| 1034 | ;; something (e.g., one may have |
| 1035 | ;; (define-key function-key-map "\e[192z" [f11]) |
| 1036 | ;; which would translate the escape-sequence generated by |
| 1037 | ;; f11 in an xterm window into the symbolic key f11. |
| 1038 | ;; |
| 1039 | ;; If `first-key' is not an ESC event, we make it into the |
| 1040 | ;; last-command-event in order to pretend that this key was |
| 1041 | ;; pressed. This is needed to allow arrow keys to be bound to |
| 1042 | ;; macros. Otherwise, viper-exec-mapped-kbd-macro will think |
| 1043 | ;; that the last event was ESC and so it'll execute whatever is |
| 1044 | ;; bound to ESC. (Viper macros can't be bound to |
| 1045 | ;; ESC-sequences). |
| 1046 | (let* ((first-key (elt keyseq 0)) |
| 1047 | (key-mod (event-modifiers first-key))) |
| 1048 | (cond ((and (viper-ESC-event-p first-key) |
| 1049 | (not (viper-translate-all-ESC-keysequences))) |
| 1050 | ;; put keys following ESC on the unread list |
| 1051 | ;; and return ESC as the key-sequence |
| 1052 | (viper-set-unread-command-events (viper-subseq keyseq 1)) |
| 1053 | (setq last-input-event event |
| 1054 | keyseq (if (featurep 'emacs) |
| 1055 | "\e" |
| 1056 | (vector (character-to-event ?\e))))) |
| 1057 | ((and (featurep 'xemacs) |
| 1058 | (key-press-event-p first-key) |
| 1059 | (equal '(meta) key-mod)) |
| 1060 | (viper-set-unread-command-events |
| 1061 | (vconcat (vector |
| 1062 | (character-to-event (event-key first-key))) |
| 1063 | (viper-subseq keyseq 1))) |
| 1064 | (setq last-input-event event |
| 1065 | keyseq (vector (character-to-event ?\e)))) |
| 1066 | ((eventp first-key) |
| 1067 | (setq last-command-event |
| 1068 | (viper-copy-event first-key))) |
| 1069 | )) |
| 1070 | ) ; end progn |
| 1071 | |
| 1072 | ;; this is escape event with nothing after it |
| 1073 | ;; put in unread-command-event and then re-read |
| 1074 | (viper-set-unread-command-events event) |
| 1075 | (setq keyseq (read-key-sequence nil)) |
| 1076 | )) |
| 1077 | ;; not an escape event |
| 1078 | (setq keyseq (vector event))) |
| 1079 | keyseq)) |
| 1080 | |
| 1081 | |
| 1082 | |
| 1083 | ;; Listen to ESC key. |
| 1084 | ;; If a sequence of keys starting with ESC is issued with very short delays, |
| 1085 | ;; interpret these keys in Emacs mode, so ESC won't be interpreted as a Vi key. |
| 1086 | (defun viper-intercept-ESC-key () |
| 1087 | "Function that implements ESC key in Viper emulation of Vi." |
| 1088 | (interactive) |
| 1089 | (let ((cmd (or (key-binding (viper-envelop-ESC-key)) |
| 1090 | (lambda () (interactive) (error "Viper bell"))))) |
| 1091 | |
| 1092 | ;; call the actual function to execute ESC (if no other symbols followed) |
| 1093 | ;; or the key bound to the ESC sequence (if the sequence was issued |
| 1094 | ;; with very short delay between characters). |
| 1095 | (if (eq cmd 'viper-intercept-ESC-key) |
| 1096 | (setq cmd |
| 1097 | (cond ((eq viper-current-state 'vi-state) |
| 1098 | 'viper-ESC) |
| 1099 | ((eq viper-current-state 'insert-state) |
| 1100 | 'viper-exit-insert-state) |
| 1101 | ((eq viper-current-state 'replace-state) |
| 1102 | 'viper-replace-state-exit-cmd) |
| 1103 | (t 'viper-change-state-to-vi) |
| 1104 | ))) |
| 1105 | (call-interactively cmd))) |
| 1106 | |
| 1107 | |
| 1108 | |
| 1109 | \f |
| 1110 | ;; prefix argument for Vi mode |
| 1111 | |
| 1112 | ;; In Vi mode, prefix argument is a dotted pair (NUM . COM) where NUM |
| 1113 | ;; represents the numeric value of the prefix argument and COM represents |
| 1114 | ;; command prefix such as "c", "d", "m" and "y". |
| 1115 | |
| 1116 | ;; Get value part of prefix-argument ARG. |
| 1117 | (defsubst viper-p-val (arg) |
| 1118 | (cond ((null arg) 1) |
| 1119 | ((consp arg) |
| 1120 | (if (or (null (car arg)) (equal (car arg) '(nil))) |
| 1121 | 1 (car arg))) |
| 1122 | (t arg))) |
| 1123 | |
| 1124 | ;; Get raw value part of prefix-argument ARG. |
| 1125 | (defsubst viper-P-val (arg) |
| 1126 | (cond ((consp arg) (car arg)) |
| 1127 | (t arg))) |
| 1128 | |
| 1129 | ;; Get com part of prefix-argument ARG. |
| 1130 | (defsubst viper-getcom (arg) |
| 1131 | (cond ((null arg) nil) |
| 1132 | ((consp arg) (cdr arg)) |
| 1133 | (t nil))) |
| 1134 | |
| 1135 | ;; Get com part of prefix-argument ARG and modify it. |
| 1136 | (defun viper-getCom (arg) |
| 1137 | (let ((com (viper-getcom arg))) |
| 1138 | (cond ((viper= com ?c) ?c) |
| 1139 | ;; Previously, ?c was being converted to ?C, but this prevented |
| 1140 | ;; multiline replace regions. |
| 1141 | ;;((viper= com ?c) ?C) |
| 1142 | ((viper= com ?d) ?D) |
| 1143 | ((viper= com ?y) ?Y) |
| 1144 | (t com)))) |
| 1145 | |
| 1146 | |
| 1147 | ;; Compute numeric prefix arg value. |
| 1148 | ;; Invoked by EVENT-CHAR. COM is the command part obtained so far. |
| 1149 | (defun viper-prefix-arg-value (event-char com) |
| 1150 | (let ((viper-intermediate-command 'viper-digit-argument) |
| 1151 | value func) |
| 1152 | ;; read while number |
| 1153 | (while (and (viper-characterp event-char) |
| 1154 | (>= event-char ?0) (<= event-char ?9)) |
| 1155 | (setq value (+ (* (if (integerp value) value 0) 10) (- event-char ?0))) |
| 1156 | (setq event-char (viper-read-event-convert-to-char))) |
| 1157 | |
| 1158 | (setq prefix-arg value) |
| 1159 | (if com (setq prefix-arg (cons prefix-arg com))) |
| 1160 | (while (eq event-char ?U) |
| 1161 | (viper-describe-arg prefix-arg) |
| 1162 | (setq event-char (viper-read-event-convert-to-char))) |
| 1163 | |
| 1164 | (if (or com (and (not (eq viper-current-state 'vi-state)) |
| 1165 | ;; make sure it is a Vi command |
| 1166 | (viper-characterp event-char) |
| 1167 | (viper-vi-command-p event-char) |
| 1168 | )) |
| 1169 | ;; If appears to be one of the vi commands, |
| 1170 | ;; then execute it with funcall and clear prefix-arg in order to not |
| 1171 | ;; confuse subsequent commands |
| 1172 | (progn |
| 1173 | ;; last-command-event is the char we want emacs to think was typed |
| 1174 | ;; last. If com is not nil, the viper-digit-argument command was |
| 1175 | ;; called from within viper-prefix-arg command, such as `d', `w', |
| 1176 | ;; etc., i.e., the user typed, say, d2. In this case, `com' would be |
| 1177 | ;; `d', `w', etc. If viper-digit-argument was invoked by |
| 1178 | ;; viper-escape-to-vi (which is indicated by the fact that the |
| 1179 | ;; current state is not vi-state), then `event-char' represents the |
| 1180 | ;; vi command to be executed (e.g., `d', `w', etc). Again, |
| 1181 | ;; last-command-event must make emacs believe that this is the command |
| 1182 | ;; we typed. |
| 1183 | (cond ((eq event-char 'return) (setq event-char ?\C-m)) |
| 1184 | ((eq event-char 'delete) (setq event-char ?\C-?)) |
| 1185 | ((eq event-char 'backspace) (setq event-char ?\C-h)) |
| 1186 | ((eq event-char 'space) (setq event-char ?\ ))) |
| 1187 | (setq last-command-event |
| 1188 | (if (featurep 'xemacs) |
| 1189 | (character-to-event (or com event-char)) |
| 1190 | (or com event-char))) |
| 1191 | (setq func (viper-exec-form-in-vi |
| 1192 | `(key-binding (char-to-string ,event-char)))) |
| 1193 | (funcall func prefix-arg) |
| 1194 | (setq prefix-arg nil)) |
| 1195 | ;; some other command -- let emacs do it in its own way |
| 1196 | (viper-set-unread-command-events event-char)) |
| 1197 | )) |
| 1198 | |
| 1199 | |
| 1200 | ;; Vi operator as prefix argument." |
| 1201 | (defun viper-prefix-arg-com (char value com) |
| 1202 | (let ((cont t) |
| 1203 | cmd-info |
| 1204 | cmd-to-exec-at-end) |
| 1205 | (while (and cont |
| 1206 | (viper-memq-char char |
| 1207 | (list ?c ?d ?y ?! ?< ?> ?= ?# ?r ?R ?\" |
| 1208 | viper-buffer-search-char))) |
| 1209 | (if com |
| 1210 | ;; this means that we already have a command character, so we |
| 1211 | ;; construct a com list and exit while. however, if char is " |
| 1212 | ;; it is an error. |
| 1213 | (progn |
| 1214 | ;; new com is (CHAR . OLDCOM) |
| 1215 | (if (viper-memq-char char '(?# ?\")) (error "Viper bell")) |
| 1216 | (setq com (cons char com)) |
| 1217 | (setq cont nil)) |
| 1218 | ;; If com is nil we set com as char, and read more. Again, if char is |
| 1219 | ;; ", we read the name of register and store it in viper-use-register. |
| 1220 | ;; if char is !, =, or #, a complete com is formed so we exit the while |
| 1221 | ;; loop. |
| 1222 | (cond ((viper-memq-char char '(?! ?=)) |
| 1223 | (setq com char) |
| 1224 | (setq char (read-char)) |
| 1225 | (setq cont nil)) |
| 1226 | ((viper= char ?#) |
| 1227 | ;; read a char and encode it as com |
| 1228 | (setq com (+ 128 (read-char))) |
| 1229 | (setq char (read-char))) |
| 1230 | ((viper= char ?\") |
| 1231 | (let ((reg (read-char))) |
| 1232 | (if (viper-valid-register reg) |
| 1233 | (setq viper-use-register reg) |
| 1234 | (error "Viper bell")) |
| 1235 | (setq char (read-char)))) |
| 1236 | (t |
| 1237 | (setq com char) |
| 1238 | (setq char (read-char)))))) |
| 1239 | |
| 1240 | (if (atom com) |
| 1241 | ;; `com' is a single char, so we construct the command argument |
| 1242 | ;; and if `char' is `?', we describe the arg; otherwise |
| 1243 | ;; we prepare the command that will be executed at the end. |
| 1244 | (progn |
| 1245 | (setq cmd-info (cons value com)) |
| 1246 | (while (viper= char ?U) |
| 1247 | (viper-describe-arg cmd-info) |
| 1248 | (setq char (read-char))) |
| 1249 | ;; `char' is a movement cmd, a digit arg cmd, or a register cmd---so |
| 1250 | ;; we execute it at the very end |
| 1251 | (or (viper-movement-command-p char) |
| 1252 | (viper-digit-command-p char) |
| 1253 | (viper-regsuffix-command-p char) |
| 1254 | (viper= char ?!) ; bang command |
| 1255 | (viper= char ?g) ; the gg command (like G0) |
| 1256 | (error "Viper bell")) |
| 1257 | (setq cmd-to-exec-at-end |
| 1258 | (viper-exec-form-in-vi |
| 1259 | `(key-binding (char-to-string ,char))))) |
| 1260 | |
| 1261 | ;; as com is non-nil, this means that we have a command to execute |
| 1262 | (if (viper-memq-char (car com) '(?r ?R)) |
| 1263 | ;; execute appropriate region command. |
| 1264 | (let ((char (car com)) (com (cdr com))) |
| 1265 | (setq prefix-arg (cons value com)) |
| 1266 | (if (viper= char ?r) |
| 1267 | (viper-region prefix-arg) |
| 1268 | (viper-Region prefix-arg)) |
| 1269 | ;; reset prefix-arg |
| 1270 | (setq prefix-arg nil)) |
| 1271 | ;; otherwise, reset prefix arg and call appropriate command |
| 1272 | (setq value (if (null value) 1 value)) |
| 1273 | (setq prefix-arg nil) |
| 1274 | (cond |
| 1275 | ;; If we change ?C to ?c here, then cc will enter replacement mode |
| 1276 | ;; rather than deleting lines. However, it will affect 1 less line |
| 1277 | ;; than normal. We decided to not use replacement mode here and |
| 1278 | ;; follow Vi, since replacement mode on n full lines can be achieved |
| 1279 | ;; with nC. |
| 1280 | ((equal com '(?c . ?c)) (viper-line (cons value ?C))) |
| 1281 | ((equal com '(?d . ?d)) (viper-line (cons value ?D))) |
| 1282 | ((equal com '(?d . ?y)) (viper-yank-defun)) |
| 1283 | ((equal com '(?y . ?y)) (viper-line (cons value ?Y))) |
| 1284 | ((equal com '(?< . ?<)) (viper-line (cons value ?<))) |
| 1285 | ((equal com '(?> . ?>)) (viper-line (cons value ?>))) |
| 1286 | ((equal com '(?! . ?!)) (viper-line (cons value ?!))) |
| 1287 | ((equal com '(?= . ?=)) (viper-line (cons value ?=))) |
| 1288 | ;; gg acts as G0 |
| 1289 | ((equal (car com) ?g) (viper-goto-line 0)) |
| 1290 | (t (error "Viper bell"))))) |
| 1291 | |
| 1292 | (if cmd-to-exec-at-end |
| 1293 | (progn |
| 1294 | (setq last-command-event |
| 1295 | (viper-copy-event |
| 1296 | (if (featurep 'xemacs) (character-to-event char) char))) |
| 1297 | (condition-case err |
| 1298 | (funcall cmd-to-exec-at-end cmd-info) |
| 1299 | (error |
| 1300 | (error "%s" (error-message-string err)))))) |
| 1301 | )) |
| 1302 | |
| 1303 | (defun viper-describe-arg (arg) |
| 1304 | (let (val com) |
| 1305 | (setq val (viper-P-val arg) |
| 1306 | com (viper-getcom arg)) |
| 1307 | (if (null val) |
| 1308 | (if (null com) |
| 1309 | (message "Value is nil, and command is nil") |
| 1310 | (message "Value is nil, and command is `%c'" com)) |
| 1311 | (if (null com) |
| 1312 | (message "Value is `%d', and command is nil" val) |
| 1313 | (message "Value is `%d', and command is `%c'" val com))))) |
| 1314 | |
| 1315 | (defun viper-digit-argument (arg) |
| 1316 | "Begin numeric argument for the next command." |
| 1317 | (interactive "P") |
| 1318 | (viper-leave-region-active) |
| 1319 | (viper-prefix-arg-value |
| 1320 | (viper-last-command-char) (if (consp arg) (cdr arg) nil))) |
| 1321 | |
| 1322 | (defun viper-command-argument (arg) |
| 1323 | "Accept a motion command as an argument." |
| 1324 | (interactive "P") |
| 1325 | (let ((viper-intermediate-command 'viper-command-argument)) |
| 1326 | (condition-case nil |
| 1327 | (viper-prefix-arg-com |
| 1328 | (viper-last-command-char) |
| 1329 | (cond ((null arg) nil) |
| 1330 | ((consp arg) (car arg)) |
| 1331 | ((integerp arg) arg) |
| 1332 | (t (error viper-InvalidCommandArgument))) |
| 1333 | (cond ((null arg) nil) |
| 1334 | ((consp arg) (cdr arg)) |
| 1335 | ((integerp arg) nil) |
| 1336 | (t (error viper-InvalidCommandArgument)))) |
| 1337 | (quit (setq viper-use-register nil) |
| 1338 | (signal 'quit nil))) |
| 1339 | (viper-deactivate-mark))) |
| 1340 | |
| 1341 | \f |
| 1342 | ;; repeat last destructive command |
| 1343 | |
| 1344 | ;; Append region to text in register REG. |
| 1345 | ;; START and END are buffer positions indicating what to append. |
| 1346 | (defsubst viper-append-to-register (reg start end) |
| 1347 | (set-register reg (concat (if (stringp (get-register reg)) |
| 1348 | (get-register reg) "") |
| 1349 | (buffer-substring start end)))) |
| 1350 | |
| 1351 | ;; Saves last inserted text for possible use by viper-repeat command. |
| 1352 | (defun viper-save-last-insertion (beg end) |
| 1353 | (condition-case nil |
| 1354 | (setq viper-last-insertion (buffer-substring beg end)) |
| 1355 | (error |
| 1356 | ;; beg or end marker are somehow screwed up |
| 1357 | (setq viper-last-insertion nil))) |
| 1358 | (setq viper-last-insertion (buffer-substring beg end)) |
| 1359 | (or (< (length viper-d-com) 5) |
| 1360 | (setcar (nthcdr 4 viper-d-com) viper-last-insertion)) |
| 1361 | (or (null viper-command-ring) |
| 1362 | (ring-empty-p viper-command-ring) |
| 1363 | (progn |
| 1364 | (setcar (nthcdr 4 (viper-current-ring-item viper-command-ring)) |
| 1365 | viper-last-insertion) |
| 1366 | ;; del most recent elt, if identical to the second most-recent |
| 1367 | (viper-cleanup-ring viper-command-ring))) |
| 1368 | ) |
| 1369 | |
| 1370 | (defsubst viper-yank-last-insertion () |
| 1371 | "Inserts the text saved by the previous viper-save-last-insertion command." |
| 1372 | (condition-case nil |
| 1373 | (insert viper-last-insertion) |
| 1374 | (error nil))) |
| 1375 | |
| 1376 | |
| 1377 | ;; define functions to be executed |
| 1378 | |
| 1379 | ;; invoked by the `C' command |
| 1380 | (defun viper-exec-change (m-com com) |
| 1381 | (or (and (markerp viper-com-point) (marker-position viper-com-point)) |
| 1382 | (set-marker viper-com-point (point) (current-buffer))) |
| 1383 | ;; handle C cmd at the eol and at eob. |
| 1384 | (if (or (and (eolp) (= viper-com-point (point))) |
| 1385 | (= viper-com-point (point-max))) |
| 1386 | (progn |
| 1387 | (insert " ")(backward-char 1))) |
| 1388 | (if (= viper-com-point (point)) |
| 1389 | (viper-forward-char-carefully)) |
| 1390 | (push-mark viper-com-point) |
| 1391 | (if (eq m-com 'viper-next-line-at-bol) |
| 1392 | (viper-enlarge-region (mark t) (point))) |
| 1393 | (if (< (point) (mark t)) |
| 1394 | (exchange-point-and-mark)) |
| 1395 | (if (eq (preceding-char) ?\n) |
| 1396 | (viper-backward-char-carefully)) ; give back the newline |
| 1397 | (if (eq viper-intermediate-command 'viper-repeat) |
| 1398 | (viper-change-subr (mark t) (point)) |
| 1399 | (viper-change (mark t) (point)))) |
| 1400 | |
| 1401 | ;; this is invoked by viper-substitute-line |
| 1402 | (defun viper-exec-Change (m-com com) |
| 1403 | (save-excursion |
| 1404 | (set-mark viper-com-point) |
| 1405 | (viper-enlarge-region (mark t) (point)) |
| 1406 | (if viper-use-register |
| 1407 | (progn |
| 1408 | (cond ((viper-valid-register viper-use-register '(letter digit)) |
| 1409 | (copy-to-register |
| 1410 | viper-use-register (mark t) (point) nil)) |
| 1411 | ((viper-valid-register viper-use-register '(Letter)) |
| 1412 | (viper-append-to-register |
| 1413 | (downcase viper-use-register) (mark t) (point))) |
| 1414 | (t (setq viper-use-register nil) |
| 1415 | (error viper-InvalidRegister viper-use-register))) |
| 1416 | (setq viper-use-register nil))) |
| 1417 | (delete-region (mark t) (point))) |
| 1418 | (open-line 1) |
| 1419 | (if (eq viper-intermediate-command 'viper-repeat) |
| 1420 | (viper-yank-last-insertion) |
| 1421 | (viper-change-state-to-insert) |
| 1422 | )) |
| 1423 | |
| 1424 | (defun viper-exec-delete (m-com com) |
| 1425 | (or (and (markerp viper-com-point) (marker-position viper-com-point)) |
| 1426 | (set-marker viper-com-point (point) (current-buffer))) |
| 1427 | (let (chars-deleted) |
| 1428 | (if viper-use-register |
| 1429 | (progn |
| 1430 | (cond ((viper-valid-register viper-use-register '(letter digit)) |
| 1431 | (copy-to-register |
| 1432 | viper-use-register viper-com-point (point) nil)) |
| 1433 | ((viper-valid-register viper-use-register '(Letter)) |
| 1434 | (viper-append-to-register |
| 1435 | (downcase viper-use-register) viper-com-point (point))) |
| 1436 | (t (setq viper-use-register nil) |
| 1437 | (error viper-InvalidRegister viper-use-register))) |
| 1438 | (setq viper-use-register nil))) |
| 1439 | (setq last-command |
| 1440 | (if (eq last-command 'd-command) 'kill-region nil)) |
| 1441 | (setq chars-deleted (abs (- (point) viper-com-point))) |
| 1442 | (if (> chars-deleted viper-change-notification-threshold) |
| 1443 | (unless (viper-is-in-minibuffer) |
| 1444 | (message "Deleted %d characters" chars-deleted))) |
| 1445 | (kill-region viper-com-point (point)) |
| 1446 | (setq this-command 'd-command) |
| 1447 | (if viper-ex-style-motion |
| 1448 | (if (and (eolp) (not (bolp))) (backward-char 1))))) |
| 1449 | |
| 1450 | (defun viper-exec-Delete (m-com com) |
| 1451 | (save-excursion |
| 1452 | (set-mark viper-com-point) |
| 1453 | (viper-enlarge-region (mark t) (point)) |
| 1454 | (let (lines-deleted) |
| 1455 | (if viper-use-register |
| 1456 | (progn |
| 1457 | (cond ((viper-valid-register viper-use-register '(letter digit)) |
| 1458 | (copy-to-register |
| 1459 | viper-use-register (mark t) (point) nil)) |
| 1460 | ((viper-valid-register viper-use-register '(Letter)) |
| 1461 | (viper-append-to-register |
| 1462 | (downcase viper-use-register) (mark t) (point))) |
| 1463 | (t (setq viper-use-register nil) |
| 1464 | (error viper-InvalidRegister viper-use-register))) |
| 1465 | (setq viper-use-register nil))) |
| 1466 | (setq last-command |
| 1467 | (if (eq last-command 'D-command) 'kill-region nil)) |
| 1468 | (setq lines-deleted (count-lines (point) viper-com-point)) |
| 1469 | (if (> lines-deleted viper-change-notification-threshold) |
| 1470 | (unless (viper-is-in-minibuffer) |
| 1471 | (message "Deleted %d lines" lines-deleted))) |
| 1472 | (kill-region (mark t) (point)) |
| 1473 | (if (eq m-com 'viper-line) (setq this-command 'D-command))) |
| 1474 | (back-to-indentation))) |
| 1475 | |
| 1476 | ;; save region |
| 1477 | (defun viper-exec-yank (m-com com) |
| 1478 | (or (and (markerp viper-com-point) (marker-position viper-com-point)) |
| 1479 | (set-marker viper-com-point (point) (current-buffer))) |
| 1480 | (let (chars-saved) |
| 1481 | (if viper-use-register |
| 1482 | (progn |
| 1483 | (cond ((viper-valid-register viper-use-register '(letter digit)) |
| 1484 | (copy-to-register |
| 1485 | viper-use-register viper-com-point (point) nil)) |
| 1486 | ((viper-valid-register viper-use-register '(Letter)) |
| 1487 | (viper-append-to-register |
| 1488 | (downcase viper-use-register) viper-com-point (point))) |
| 1489 | (t (setq viper-use-register nil) |
| 1490 | (error viper-InvalidRegister viper-use-register))) |
| 1491 | (setq viper-use-register nil))) |
| 1492 | (setq last-command nil) |
| 1493 | (copy-region-as-kill viper-com-point (point)) |
| 1494 | (setq chars-saved (abs (- (point) viper-com-point))) |
| 1495 | (if (> chars-saved viper-change-notification-threshold) |
| 1496 | (unless (viper-is-in-minibuffer) |
| 1497 | (message "Saved %d characters" chars-saved))) |
| 1498 | (goto-char viper-com-point))) |
| 1499 | |
| 1500 | ;; save lines |
| 1501 | (defun viper-exec-Yank (m-com com) |
| 1502 | (save-excursion |
| 1503 | (set-mark viper-com-point) |
| 1504 | (viper-enlarge-region (mark t) (point)) |
| 1505 | (let (lines-saved) |
| 1506 | (if viper-use-register |
| 1507 | (progn |
| 1508 | (cond ((viper-valid-register viper-use-register '(letter digit)) |
| 1509 | (copy-to-register |
| 1510 | viper-use-register (mark t) (point) nil)) |
| 1511 | ((viper-valid-register viper-use-register '(Letter)) |
| 1512 | (viper-append-to-register |
| 1513 | (downcase viper-use-register) (mark t) (point))) |
| 1514 | (t (setq viper-use-register nil) |
| 1515 | (error viper-InvalidRegister viper-use-register))) |
| 1516 | (setq viper-use-register nil))) |
| 1517 | (setq last-command nil) |
| 1518 | (copy-region-as-kill (mark t) (point)) |
| 1519 | (setq lines-saved (count-lines (mark t) (point))) |
| 1520 | (if (> lines-saved viper-change-notification-threshold) |
| 1521 | (unless (viper-is-in-minibuffer) |
| 1522 | (message "Saved %d lines" lines-saved))))) |
| 1523 | (viper-deactivate-mark) |
| 1524 | (goto-char viper-com-point)) |
| 1525 | |
| 1526 | (defun viper-exec-bang (m-com com) |
| 1527 | (save-excursion |
| 1528 | (set-mark viper-com-point) |
| 1529 | (viper-enlarge-region (mark t) (point)) |
| 1530 | (exchange-point-and-mark) |
| 1531 | (shell-command-on-region |
| 1532 | (mark t) (point) |
| 1533 | (if (viper= com ?!) |
| 1534 | (setq viper-last-shell-com |
| 1535 | (viper-read-string-with-history |
| 1536 | "!" |
| 1537 | nil |
| 1538 | 'viper-shell-history |
| 1539 | (car viper-shell-history) |
| 1540 | )) |
| 1541 | viper-last-shell-com) |
| 1542 | t))) |
| 1543 | |
| 1544 | (defun viper-exec-equals (m-com com) |
| 1545 | (save-excursion |
| 1546 | (set-mark viper-com-point) |
| 1547 | (viper-enlarge-region (mark t) (point)) |
| 1548 | (if (> (mark t) (point)) (exchange-point-and-mark)) |
| 1549 | (indent-region (mark t) (point) nil))) |
| 1550 | |
| 1551 | (defun viper-exec-shift (m-com com) |
| 1552 | (save-excursion |
| 1553 | (set-mark viper-com-point) |
| 1554 | (viper-enlarge-region (mark t) (point)) |
| 1555 | (if (> (mark t) (point)) (exchange-point-and-mark)) |
| 1556 | (indent-rigidly (mark t) (point) |
| 1557 | (if (viper= com ?>) |
| 1558 | viper-shift-width |
| 1559 | (- viper-shift-width)))) |
| 1560 | ;; return point to where it was before shift |
| 1561 | (goto-char viper-com-point)) |
| 1562 | |
| 1563 | ;; this is needed because some commands fake com by setting it to ?r, which |
| 1564 | ;; denotes repeated insert command. |
| 1565 | (defsubst viper-exec-dummy (m-com com) |
| 1566 | nil) |
| 1567 | |
| 1568 | (defun viper-exec-buffer-search (m-com com) |
| 1569 | (setq viper-s-string |
| 1570 | (regexp-quote (buffer-substring (point) viper-com-point))) |
| 1571 | (setq viper-s-forward t) |
| 1572 | (setq viper-search-history (cons viper-s-string viper-search-history)) |
| 1573 | (setq viper-intermediate-command 'viper-exec-buffer-search) |
| 1574 | (viper-search viper-s-string viper-s-forward 1)) |
| 1575 | |
| 1576 | (defvar viper-exec-array (make-vector 128 nil)) |
| 1577 | |
| 1578 | ;; Using a dispatch array allows adding functions like buffer search |
| 1579 | ;; without affecting other functions. Buffer search can now be bound |
| 1580 | ;; to any character. |
| 1581 | |
| 1582 | (aset viper-exec-array ?c 'viper-exec-change) |
| 1583 | (aset viper-exec-array ?C 'viper-exec-Change) |
| 1584 | (aset viper-exec-array ?d 'viper-exec-delete) |
| 1585 | (aset viper-exec-array ?D 'viper-exec-Delete) |
| 1586 | (aset viper-exec-array ?y 'viper-exec-yank) |
| 1587 | (aset viper-exec-array ?Y 'viper-exec-Yank) |
| 1588 | (aset viper-exec-array ?r 'viper-exec-dummy) |
| 1589 | (aset viper-exec-array ?! 'viper-exec-bang) |
| 1590 | (aset viper-exec-array ?< 'viper-exec-shift) |
| 1591 | (aset viper-exec-array ?> 'viper-exec-shift) |
| 1592 | (aset viper-exec-array ?= 'viper-exec-equals) |
| 1593 | |
| 1594 | |
| 1595 | |
| 1596 | ;; This function is called by various movement commands to execute a |
| 1597 | ;; destructive command on the region specified by the movement command. For |
| 1598 | ;; instance, if the user types cw, then the command viper-forward-word will |
| 1599 | ;; call viper-execute-com to execute viper-exec-change, which eventually will |
| 1600 | ;; call viper-change to invoke the replace mode on the region. |
| 1601 | ;; |
| 1602 | ;; The var viper-d-com is set to (M-COM VAL COM REG INSERTED-TEXT COMMAND-KEYS) |
| 1603 | ;; via a call to viper-set-destructive-command, for later use by viper-repeat. |
| 1604 | (defun viper-execute-com (m-com val com) |
| 1605 | (let ((reg viper-use-register)) |
| 1606 | ;; this is the special command `#' |
| 1607 | (if (> com 128) |
| 1608 | (viper-special-prefix-com (- com 128)) |
| 1609 | (let ((fn (aref viper-exec-array com))) |
| 1610 | (if (null fn) |
| 1611 | (error "%c: %s" com viper-InvalidViCommand) |
| 1612 | (funcall fn m-com com)))) |
| 1613 | (if (viper-dotable-command-p com) |
| 1614 | (viper-set-destructive-command |
| 1615 | (list m-com val com reg nil nil))) |
| 1616 | )) |
| 1617 | |
| 1618 | |
| 1619 | (defun viper-repeat (arg) |
| 1620 | "Re-execute last destructive command. |
| 1621 | Use the info in viper-d-com, which has the form |
| 1622 | \(com val ch reg inserted-text command-keys\), |
| 1623 | where `com' is the command to be re-executed, `val' is the |
| 1624 | argument to `com', `ch' is a flag for repeat, and `reg' is optional; |
| 1625 | if it exists, it is the name of the register for `com'. |
| 1626 | If the prefix argument ARG is non-nil, it is used instead of `val'." |
| 1627 | (interactive "P") |
| 1628 | (let ((save-point (point)) ; save point before repeating prev cmd |
| 1629 | ;; Pass along that we are repeating a destructive command |
| 1630 | ;; This tells viper-set-destructive-command not to update |
| 1631 | ;; viper-command-ring |
| 1632 | (viper-intermediate-command 'viper-repeat)) |
| 1633 | (if (eq last-command 'viper-undo) |
| 1634 | ;; if the last command was viper-undo, then undo-more |
| 1635 | (viper-undo-more) |
| 1636 | ;; otherwise execute the command stored in viper-d-com. if arg is |
| 1637 | ;; non-nil its prefix value is used as new prefix value for the command. |
| 1638 | (let ((m-com (car viper-d-com)) |
| 1639 | (val (viper-P-val arg)) |
| 1640 | (com (nth 2 viper-d-com)) |
| 1641 | (reg (nth 3 viper-d-com))) |
| 1642 | (if (null val) (setq val (nth 1 viper-d-com))) |
| 1643 | (if (null m-com) (error "No previous command to repeat")) |
| 1644 | (setq viper-use-register reg) |
| 1645 | (if (nth 4 viper-d-com) ; text inserted by command |
| 1646 | (setq viper-last-insertion (nth 4 viper-d-com) |
| 1647 | viper-d-char (nth 4 viper-d-com))) |
| 1648 | (funcall m-com (cons val com)) |
| 1649 | (cond ((and (< save-point (point)) viper-keep-point-on-repeat) |
| 1650 | (goto-char save-point)) ; go back to before repeat. |
| 1651 | ((and (< save-point (point)) viper-ex-style-editing) |
| 1652 | (or (bolp) (backward-char 1)))) |
| 1653 | (if (and (eolp) (not (bolp))) |
| 1654 | (backward-char 1)) |
| 1655 | )) |
| 1656 | (viper-adjust-undo) ; take care of undo |
| 1657 | ;; If the prev cmd was rotating the command ring, this means that `.' has |
| 1658 | ;; just executed a command from that ring. So, push it on the ring again. |
| 1659 | ;; If we are just executing previous command , then don't push viper-d-com |
| 1660 | ;; because viper-d-com is not fully constructed in this case (its keys and |
| 1661 | ;; the inserted text may be nil). Besides, in this case, the command |
| 1662 | ;; executed by `.' is already on the ring. |
| 1663 | (if (eq last-command 'viper-display-current-destructive-command) |
| 1664 | (viper-push-onto-ring viper-d-com 'viper-command-ring)) |
| 1665 | (viper-deactivate-mark) |
| 1666 | )) |
| 1667 | |
| 1668 | (defun viper-repeat-from-history () |
| 1669 | "Repeat a destructive command from history. |
| 1670 | Doesn't change viper-command-ring in any way, so `.' will work as before |
| 1671 | executing this command. |
| 1672 | This command is supposed to be bound to a two-character Vi macro where |
| 1673 | the second character is a digit 0 to 9. The digit indicates which |
| 1674 | history command to execute. `<char>0' is equivalent to `.', `<char>1' |
| 1675 | invokes the command before that, etc." |
| 1676 | (interactive) |
| 1677 | (let* ((viper-intermediate-command 'repeating-display-destructive-command) |
| 1678 | (idx (cond (viper-this-kbd-macro |
| 1679 | (string-to-number |
| 1680 | (symbol-name (elt viper-this-kbd-macro 1)))) |
| 1681 | (t 0))) |
| 1682 | (num idx) |
| 1683 | (viper-d-com viper-d-com)) |
| 1684 | |
| 1685 | (or (and (numberp num) (<= 0 num) (<= num 9)) |
| 1686 | (progn |
| 1687 | (setq idx 0 |
| 1688 | num 0) |
| 1689 | (message |
| 1690 | "`viper-repeat-from-history' must be invoked as a Vi macro bound to `<key><digit>'"))) |
| 1691 | (while (< 0 num) |
| 1692 | (setq viper-d-com (viper-special-ring-rotate1 viper-command-ring -1)) |
| 1693 | (setq num (1- num))) |
| 1694 | (viper-repeat nil) |
| 1695 | (while (> idx num) |
| 1696 | (viper-special-ring-rotate1 viper-command-ring 1) |
| 1697 | (setq num (1+ num))) |
| 1698 | )) |
| 1699 | |
| 1700 | |
| 1701 | ;; The hash-command. It is invoked interactively by the key sequence #<char>. |
| 1702 | ;; The chars that can follow `#' are determined by viper-hash-command-p |
| 1703 | (defun viper-special-prefix-com (char) |
| 1704 | (cond ((viper= char ?c) |
| 1705 | (downcase-region (min viper-com-point (point)) |
| 1706 | (max viper-com-point (point)))) |
| 1707 | ((viper= char ?C) |
| 1708 | (upcase-region (min viper-com-point (point)) |
| 1709 | (max viper-com-point (point)))) |
| 1710 | ((viper= char ?g) |
| 1711 | (push-mark viper-com-point t) |
| 1712 | ;; execute the last emacs kbd macro on each line of the region |
| 1713 | (viper-global-execute)) |
| 1714 | ((viper= char ?q) |
| 1715 | (push-mark viper-com-point t) |
| 1716 | (viper-quote-region)) |
| 1717 | ((viper= char ?s) |
| 1718 | (funcall viper-spell-function viper-com-point (point))) |
| 1719 | (t (error "#%c: %s" char viper-InvalidViCommand)))) |
| 1720 | |
| 1721 | \f |
| 1722 | ;; undoing |
| 1723 | |
| 1724 | ;; hook used inside undo |
| 1725 | (defvar viper-undo-functions nil) |
| 1726 | |
| 1727 | ;; Runs viper-before-change-functions inside before-change-functions |
| 1728 | (defun viper-undo-sentinel (beg end length) |
| 1729 | (run-hook-with-args 'viper-undo-functions beg end length)) |
| 1730 | |
| 1731 | (add-hook 'after-change-functions 'viper-undo-sentinel) |
| 1732 | |
| 1733 | ;; Hook used in viper-undo |
| 1734 | (defun viper-after-change-undo-hook (beg end len) |
| 1735 | (if (and (boundp 'undo-in-progress) undo-in-progress) |
| 1736 | (setq undo-beg-posn beg |
| 1737 | undo-end-posn (or end beg)) |
| 1738 | ;; some other hooks may be changing various text properties in |
| 1739 | ;; the buffer in response to 'undo'; so remove this hook to avoid |
| 1740 | ;; its repeated invocation |
| 1741 | (remove-hook 'viper-undo-functions 'viper-after-change-undo-hook 'local) |
| 1742 | )) |
| 1743 | |
| 1744 | (defun viper-undo () |
| 1745 | "Undo previous change." |
| 1746 | (interactive) |
| 1747 | (message "undo!") |
| 1748 | (let ((modified (buffer-modified-p)) |
| 1749 | (before-undo-pt (point-marker)) |
| 1750 | undo-beg-posn undo-end-posn) |
| 1751 | |
| 1752 | ;; the viper-after-change-undo-hook removes itself after the 1st invocation |
| 1753 | (add-hook 'viper-undo-functions 'viper-after-change-undo-hook nil 'local) |
| 1754 | |
| 1755 | (undo-start) |
| 1756 | (undo-more 2) |
| 1757 | ;;(setq undo-beg-posn (or undo-beg-posn (point)) |
| 1758 | ;; undo-end-posn (or undo-end-posn (point))) |
| 1759 | ;;(setq undo-beg-posn (or undo-beg-posn before-undo-pt) |
| 1760 | ;; undo-end-posn (or undo-end-posn undo-beg-posn)) |
| 1761 | |
| 1762 | (if (and undo-beg-posn undo-end-posn) |
| 1763 | (progn |
| 1764 | (goto-char undo-beg-posn) |
| 1765 | (sit-for 0) |
| 1766 | (if (and viper-keep-point-on-undo |
| 1767 | (pos-visible-in-window-p before-undo-pt)) |
| 1768 | (progn |
| 1769 | (push-mark (point-marker) t) |
| 1770 | (viper-sit-for-short 300) |
| 1771 | (goto-char undo-end-posn) |
| 1772 | (viper-sit-for-short 300) |
| 1773 | (if (pos-visible-in-window-p undo-beg-posn) |
| 1774 | (goto-char before-undo-pt) |
| 1775 | (goto-char undo-beg-posn))) |
| 1776 | (push-mark before-undo-pt t)) |
| 1777 | )) |
| 1778 | |
| 1779 | (if (and (eolp) (not (bolp))) (backward-char 1)) |
| 1780 | ) |
| 1781 | (setq this-command 'viper-undo)) |
| 1782 | |
| 1783 | ;; Continue undoing previous changes. |
| 1784 | (defun viper-undo-more () |
| 1785 | (message "undo more!") |
| 1786 | (condition-case nil |
| 1787 | (undo-more 1) |
| 1788 | (error (beep) |
| 1789 | (message "No further undo information in this buffer"))) |
| 1790 | (if (and (eolp) (not (bolp))) (backward-char 1)) |
| 1791 | (setq this-command 'viper-undo)) |
| 1792 | |
| 1793 | ;; The following two functions are used to set up undo properly. |
| 1794 | ;; In VI, unlike Emacs, if you open a line, say, and add a bunch of lines, |
| 1795 | ;; they are undone all at once. |
| 1796 | (defun viper-adjust-undo () |
| 1797 | (if viper-undo-needs-adjustment |
| 1798 | (let ((inhibit-quit t) |
| 1799 | tmp tmp2) |
| 1800 | (setq viper-undo-needs-adjustment nil) |
| 1801 | (if (listp buffer-undo-list) |
| 1802 | (if (setq tmp (memq viper-buffer-undo-list-mark buffer-undo-list)) |
| 1803 | (progn |
| 1804 | (setq tmp2 (cdr tmp)) ; the part after mark |
| 1805 | |
| 1806 | ;; cut tail from buffer-undo-list temporarily by direct |
| 1807 | ;; manipulation with pointers in buffer-undo-list |
| 1808 | (setcdr tmp nil) |
| 1809 | |
| 1810 | (setq buffer-undo-list (delq nil buffer-undo-list)) |
| 1811 | (setq buffer-undo-list |
| 1812 | (delq viper-buffer-undo-list-mark buffer-undo-list)) |
| 1813 | ;; restore tail of buffer-undo-list |
| 1814 | (setq buffer-undo-list (nconc buffer-undo-list tmp2))) |
| 1815 | (setq buffer-undo-list (delq nil buffer-undo-list))))) |
| 1816 | )) |
| 1817 | |
| 1818 | |
| 1819 | (defun viper-set-complex-command-for-undo () |
| 1820 | (if (listp buffer-undo-list) |
| 1821 | (if (not viper-undo-needs-adjustment) |
| 1822 | (let ((inhibit-quit t)) |
| 1823 | (setq buffer-undo-list |
| 1824 | (cons viper-buffer-undo-list-mark buffer-undo-list)) |
| 1825 | (setq viper-undo-needs-adjustment t))))) |
| 1826 | |
| 1827 | |
| 1828 | ;;; Viper's destructive Command ring utilities |
| 1829 | |
| 1830 | (defun viper-display-current-destructive-command () |
| 1831 | (let ((text (nth 4 viper-d-com)) |
| 1832 | (keys (nth 5 viper-d-com)) |
| 1833 | (max-text-len 30)) |
| 1834 | |
| 1835 | (setq this-command 'viper-display-current-destructive-command) |
| 1836 | |
| 1837 | (message " `.' runs %s%s" |
| 1838 | (concat "`" (viper-array-to-string keys) "'") |
| 1839 | (viper-abbreviate-string |
| 1840 | (if (featurep 'xemacs) |
| 1841 | (replace-in-string ; xemacs |
| 1842 | (cond ((characterp text) (char-to-string text)) |
| 1843 | ((stringp text) text) |
| 1844 | (t "")) |
| 1845 | "\n" "^J") |
| 1846 | text ; emacs |
| 1847 | ) |
| 1848 | max-text-len |
| 1849 | " inserting `" "'" " .......")) |
| 1850 | )) |
| 1851 | |
| 1852 | |
| 1853 | ;; don't change viper-d-com if it was viper-repeat command invoked with `.' |
| 1854 | ;; or in some other way (non-interactively). |
| 1855 | (defun viper-set-destructive-command (list) |
| 1856 | (or (eq viper-intermediate-command 'viper-repeat) |
| 1857 | (progn |
| 1858 | (setq viper-d-com list) |
| 1859 | (setcar (nthcdr 5 viper-d-com) |
| 1860 | (viper-array-to-string (if (arrayp viper-this-command-keys) |
| 1861 | viper-this-command-keys |
| 1862 | (this-command-keys)))) |
| 1863 | (viper-push-onto-ring viper-d-com 'viper-command-ring))) |
| 1864 | (setq viper-this-command-keys nil)) |
| 1865 | |
| 1866 | |
| 1867 | (defun viper-prev-destructive-command (next) |
| 1868 | "Find previous destructive command in the history of destructive commands. |
| 1869 | With prefix argument, find next destructive command." |
| 1870 | (interactive "P") |
| 1871 | (let (cmd viper-intermediate-command) |
| 1872 | (if (eq last-command 'viper-display-current-destructive-command) |
| 1873 | ;; repeated search through command history |
| 1874 | (setq viper-intermediate-command |
| 1875 | 'repeating-display-destructive-command) |
| 1876 | ;; first search through command history--set temp ring |
| 1877 | (setq viper-temp-command-ring (ring-copy viper-command-ring))) |
| 1878 | (setq cmd (if next |
| 1879 | (viper-special-ring-rotate1 viper-temp-command-ring 1) |
| 1880 | (viper-special-ring-rotate1 viper-temp-command-ring -1))) |
| 1881 | (if (null cmd) |
| 1882 | () |
| 1883 | (setq viper-d-com cmd)) |
| 1884 | (viper-display-current-destructive-command))) |
| 1885 | |
| 1886 | |
| 1887 | (defun viper-next-destructive-command () |
| 1888 | "Find next destructive command in the history of destructive commands." |
| 1889 | (interactive) |
| 1890 | (viper-prev-destructive-command 'next)) |
| 1891 | |
| 1892 | |
| 1893 | (defun viper-insert-prev-from-insertion-ring (arg) |
| 1894 | "Cycle through insertion ring in the direction of older insertions. |
| 1895 | Undoes previous insertion and inserts new. |
| 1896 | With prefix argument, cycles in the direction of newer elements. |
| 1897 | In minibuffer, this command executes whatever the invocation key is bound |
| 1898 | to in the global map, instead of cycling through the insertion ring." |
| 1899 | (interactive "P") |
| 1900 | (let (viper-intermediate-command) |
| 1901 | (if (eq last-command 'viper-insert-from-insertion-ring) |
| 1902 | (progn ; repeated search through insertion history |
| 1903 | (setq viper-intermediate-command 'repeating-insertion-from-ring) |
| 1904 | (if (eq viper-current-state 'replace-state) |
| 1905 | (undo 1) |
| 1906 | (if viper-last-inserted-string-from-insertion-ring |
| 1907 | (backward-delete-char |
| 1908 | (length viper-last-inserted-string-from-insertion-ring)))) |
| 1909 | ) |
| 1910 | ;;first search through insertion history |
| 1911 | (setq viper-temp-insertion-ring (ring-copy viper-insertion-ring))) |
| 1912 | (setq this-command 'viper-insert-from-insertion-ring) |
| 1913 | ;; so that things will be undone properly |
| 1914 | (setq buffer-undo-list (cons nil buffer-undo-list)) |
| 1915 | (setq viper-last-inserted-string-from-insertion-ring |
| 1916 | (viper-special-ring-rotate1 viper-temp-insertion-ring (if arg 1 -1))) |
| 1917 | |
| 1918 | ;; this change of viper-intermediate-command must come after |
| 1919 | ;; viper-special-ring-rotate1, so that the ring will rotate, but before the |
| 1920 | ;; insertion. |
| 1921 | (setq viper-intermediate-command nil) |
| 1922 | (if viper-last-inserted-string-from-insertion-ring |
| 1923 | (insert viper-last-inserted-string-from-insertion-ring)) |
| 1924 | )) |
| 1925 | |
| 1926 | (defun viper-insert-next-from-insertion-ring () |
| 1927 | "Cycle through insertion ring in the direction of older insertions. |
| 1928 | Undo previous insertion and inserts new." |
| 1929 | (interactive) |
| 1930 | (viper-insert-prev-from-insertion-ring 'next)) |
| 1931 | |
| 1932 | |
| 1933 | \f |
| 1934 | ;; some region utilities |
| 1935 | |
| 1936 | ;; If at the last line of buffer, add \\n before eob, if newline is missing. |
| 1937 | (defun viper-add-newline-at-eob-if-necessary () |
| 1938 | (save-excursion |
| 1939 | (end-of-line) |
| 1940 | ;; make sure all lines end with newline, unless in the minibuffer or |
| 1941 | ;; when requested otherwise (require-final-newline is nil) |
| 1942 | (save-restriction |
| 1943 | (widen) |
| 1944 | (if (and (eobp) |
| 1945 | (not (bolp)) |
| 1946 | require-final-newline |
| 1947 | ;; add newline only if we actually edited buffer. otherwise it |
| 1948 | ;; might unintentionally modify binary buffers |
| 1949 | (buffer-modified-p) |
| 1950 | (not (viper-is-in-minibuffer)) |
| 1951 | (not buffer-read-only)) |
| 1952 | ;; text property may be read-only |
| 1953 | (condition-case nil |
| 1954 | (insert "\n") |
| 1955 | (error nil)) |
| 1956 | )) |
| 1957 | )) |
| 1958 | |
| 1959 | (defun viper-yank-defun () |
| 1960 | (mark-defun) |
| 1961 | (copy-region-as-kill (point) (mark t))) |
| 1962 | |
| 1963 | ;; Enlarge region between BEG and END. |
| 1964 | (defun viper-enlarge-region (beg end) |
| 1965 | (or beg (setq beg end)) ; if beg is nil, set to end |
| 1966 | (or end (setq end beg)) ; if end is nil, set to beg |
| 1967 | |
| 1968 | (if (< beg end) |
| 1969 | (progn (goto-char beg) (set-mark end)) |
| 1970 | (goto-char end) |
| 1971 | (set-mark beg)) |
| 1972 | (beginning-of-line) |
| 1973 | (exchange-point-and-mark) |
| 1974 | (if (or (not (eobp)) (not (bolp))) (forward-line 1)) |
| 1975 | (if (not (eobp)) (beginning-of-line)) |
| 1976 | (if (> beg end) (exchange-point-and-mark))) |
| 1977 | |
| 1978 | |
| 1979 | ;; Quote region by each line with a user supplied string. |
| 1980 | (defun viper-quote-region () |
| 1981 | (let ((quote-str viper-quote-string) |
| 1982 | (donot-change-default t)) |
| 1983 | (setq quote-str |
| 1984 | (viper-read-string-with-history |
| 1985 | "Quote string: " |
| 1986 | nil |
| 1987 | 'viper-quote-region-history |
| 1988 | (cond ((string-match "tex.*-mode" (symbol-name major-mode)) "%%") |
| 1989 | ((string-match "java.*-mode" (symbol-name major-mode)) "//") |
| 1990 | ((string-match "perl.*-mode" (symbol-name major-mode)) "#") |
| 1991 | ((string-match "lisp.*-mode" (symbol-name major-mode)) ";;") |
| 1992 | ((memq major-mode '(c-mode cc-mode c++-mode)) "//") |
| 1993 | ((memq major-mode '(sh-mode shell-mode)) "#") |
| 1994 | (t (setq donot-change-default nil) |
| 1995 | quote-str)))) |
| 1996 | (or donot-change-default |
| 1997 | (setq viper-quote-string quote-str)) |
| 1998 | (viper-enlarge-region (point) (mark t)) |
| 1999 | (if (> (point) (mark t)) (exchange-point-and-mark)) |
| 2000 | (insert quote-str) |
| 2001 | (beginning-of-line) |
| 2002 | (forward-line 1) |
| 2003 | (while (and (< (point) (mark t)) (bolp)) |
| 2004 | (insert quote-str) |
| 2005 | (beginning-of-line) |
| 2006 | (forward-line 1)))) |
| 2007 | |
| 2008 | ;; Tells whether BEG is on the same line as END. |
| 2009 | ;; If one of the args is nil, it'll return nil. |
| 2010 | (defun viper-same-line (beg end) |
| 2011 | (let ((selective-display nil) |
| 2012 | (incr 0) |
| 2013 | temp) |
| 2014 | (if (and beg end (> beg end)) |
| 2015 | (setq temp beg |
| 2016 | beg end |
| 2017 | end temp)) |
| 2018 | (if (and beg end) |
| 2019 | (cond ((or (> beg (point-max)) (> end (point-max))) ; out of range |
| 2020 | nil) |
| 2021 | (t |
| 2022 | ;; This 'if' is needed because Emacs treats the next empty line |
| 2023 | ;; as part of the previous line. |
| 2024 | (if (= (viper-line-pos 'start) end) |
| 2025 | (setq incr 1)) |
| 2026 | (<= (+ incr (count-lines beg end)) 1)))) |
| 2027 | )) |
| 2028 | |
| 2029 | |
| 2030 | ;; Check if the string ends with a newline. |
| 2031 | (defun viper-end-with-a-newline-p (string) |
| 2032 | (or (string= string "") |
| 2033 | (= (viper-seq-last-elt string) ?\n))) |
| 2034 | |
| 2035 | (defun viper-tmp-insert-at-eob (msg) |
| 2036 | (let ((savemax (point-max))) |
| 2037 | (goto-char savemax) |
| 2038 | (insert msg) |
| 2039 | (sit-for 2) |
| 2040 | (goto-char savemax) (delete-region (point) (point-max)) |
| 2041 | )) |
| 2042 | |
| 2043 | |
| 2044 | \f |
| 2045 | ;;; Minibuffer business |
| 2046 | |
| 2047 | (defsubst viper-set-minibuffer-style () |
| 2048 | (add-hook 'minibuffer-setup-hook 'viper-minibuffer-setup-sentinel) |
| 2049 | (add-hook 'post-command-hook 'viper-minibuffer-post-command-hook)) |
| 2050 | |
| 2051 | |
| 2052 | (defun viper-minibuffer-setup-sentinel () |
| 2053 | (let ((hook (if viper-vi-style-in-minibuffer |
| 2054 | 'viper-change-state-to-insert |
| 2055 | 'viper-change-state-to-emacs))) |
| 2056 | ;; making buffer-local variables so that normal buffers won't affect the |
| 2057 | ;; minibuffer and vice versa. Otherwise, command arguments will affect |
| 2058 | ;; minibuffer ops and insertions from the minibuffer will change those in |
| 2059 | ;; the normal buffers |
| 2060 | (make-local-variable 'viper-d-com) |
| 2061 | (make-local-variable 'viper-last-insertion) |
| 2062 | (make-local-variable 'viper-command-ring) |
| 2063 | (setq viper-d-com nil |
| 2064 | viper-last-insertion nil |
| 2065 | viper-command-ring nil) |
| 2066 | (funcall hook) |
| 2067 | )) |
| 2068 | |
| 2069 | ;; This is a temp hook that uses free variables init-message and viper-initial. |
| 2070 | ;; A dirty feature, but it is the simplest way to have it do the right thing. |
| 2071 | ;; The INIT-MESSAGE and VIPER-INITIAL vars come from the scope set by |
| 2072 | ;; viper-read-string-with-history |
| 2073 | (defun viper-minibuffer-standard-hook () |
| 2074 | (if (stringp init-message) |
| 2075 | (viper-tmp-insert-at-eob init-message)) |
| 2076 | (when (stringp viper-initial) |
| 2077 | ;; don't wait if we have unread events or in kbd macro |
| 2078 | (or unread-command-events |
| 2079 | executing-kbd-macro |
| 2080 | (sit-for 840)) |
| 2081 | (if (fboundp 'minibuffer-prompt-end) |
| 2082 | (delete-region (minibuffer-prompt-end) (point-max)) |
| 2083 | (erase-buffer)) |
| 2084 | (insert viper-initial))) |
| 2085 | |
| 2086 | (defsubst viper-minibuffer-real-start () |
| 2087 | (if (fboundp 'minibuffer-prompt-end) |
| 2088 | (minibuffer-prompt-end) |
| 2089 | (point-min))) |
| 2090 | |
| 2091 | (defun viper-minibuffer-post-command-hook() |
| 2092 | (when (active-minibuffer-window) |
| 2093 | (when (< (point) (viper-minibuffer-real-start)) |
| 2094 | (goto-char (viper-minibuffer-real-start))))) |
| 2095 | |
| 2096 | |
| 2097 | ;; Interpret last event in the local map first; if fails, use exit-minibuffer. |
| 2098 | ;; Run viper-minibuffer-exit-hook before exiting. |
| 2099 | (defun viper-exit-minibuffer () |
| 2100 | "Exit minibuffer Viper way." |
| 2101 | (interactive) |
| 2102 | (let (command) |
| 2103 | (setq command (local-key-binding (char-to-string (viper-last-command-char)))) |
| 2104 | (run-hooks 'viper-minibuffer-exit-hook) |
| 2105 | (if command |
| 2106 | (command-execute command) |
| 2107 | (exit-minibuffer)))) |
| 2108 | |
| 2109 | |
| 2110 | (defcustom viper-smart-suffix-list |
| 2111 | '("" "tex" "c" "cc" "C" "java" "el" "html" "htm" "xml" |
| 2112 | "pl" "flr" "P" "p" "h" "H") |
| 2113 | "*List of suffixes that Viper tries to append to filenames ending with a `.'. |
| 2114 | This is useful when the current directory contains files with the same |
| 2115 | prefix and many different suffixes. Usually, only one of the suffixes |
| 2116 | represents an editable file. However, file completion will stop at the `.' |
| 2117 | The smart suffix feature lets you hit RET in such a case, and Viper will |
| 2118 | select the appropriate suffix. |
| 2119 | |
| 2120 | Suffixes are tried in the order given and the first suffix for which a |
| 2121 | corresponding file exists is selected. If no file exists for any of the |
| 2122 | suffixes, the user is asked to confirm. |
| 2123 | |
| 2124 | To turn this feature off, set this variable to nil." |
| 2125 | :type '(repeat string) |
| 2126 | :group 'viper-misc) |
| 2127 | |
| 2128 | |
| 2129 | ;; Try to add a suitable suffix to files whose name ends with a `.' |
| 2130 | ;; Useful when the user hits RET on a non-completed file name. |
| 2131 | ;; Used as a minibuffer exit hook in read-file-name |
| 2132 | (defun viper-file-add-suffix () |
| 2133 | (let ((count 0) |
| 2134 | (len (length viper-smart-suffix-list)) |
| 2135 | (file (buffer-substring-no-properties |
| 2136 | (viper-minibuffer-real-start) (point-max))) |
| 2137 | found key cmd suff) |
| 2138 | (goto-char (point-max)) |
| 2139 | (if (and viper-smart-suffix-list (string-match "\\.$" file)) |
| 2140 | (progn |
| 2141 | (while (and (not found) (< count len)) |
| 2142 | (setq suff (nth count viper-smart-suffix-list) |
| 2143 | count (1+ count)) |
| 2144 | (if (file-exists-p |
| 2145 | (format "%s%s" (substitute-in-file-name file) suff)) |
| 2146 | (progn |
| 2147 | (setq found t) |
| 2148 | (insert suff)))) |
| 2149 | |
| 2150 | (if found |
| 2151 | () |
| 2152 | (viper-tmp-insert-at-eob " [Please complete file name]") |
| 2153 | (unwind-protect |
| 2154 | (while (not (memq cmd |
| 2155 | '(exit-minibuffer viper-exit-minibuffer))) |
| 2156 | (setq cmd |
| 2157 | (key-binding (setq key (read-key-sequence nil)))) |
| 2158 | (cond ((eq cmd 'self-insert-command) |
| 2159 | (if (featurep 'xemacs) |
| 2160 | (insert (events-to-keys key)) ; xemacs |
| 2161 | (insert key) ; emacs |
| 2162 | )) |
| 2163 | ((memq cmd '(exit-minibuffer viper-exit-minibuffer)) |
| 2164 | nil) |
| 2165 | (t (command-execute cmd))) |
| 2166 | ))) |
| 2167 | )))) |
| 2168 | |
| 2169 | |
| 2170 | (defun viper-minibuffer-trim-tail () |
| 2171 | "Delete junk at the end of the first line of the minibuffer input. |
| 2172 | Remove this function from `viper-minibuffer-exit-hook', if this causes |
| 2173 | problems." |
| 2174 | (if (viper-is-in-minibuffer) |
| 2175 | (let ((inhibit-field-text-motion t)) |
| 2176 | (goto-char (viper-minibuffer-real-start)) |
| 2177 | (end-of-line) |
| 2178 | (delete-region (point) (point-max))))) |
| 2179 | |
| 2180 | \f |
| 2181 | ;;; Reading string with history |
| 2182 | |
| 2183 | (defun viper-read-string-with-history (prompt &optional viper-initial |
| 2184 | history-var default keymap |
| 2185 | init-message) |
| 2186 | ;; Read string, prompting with PROMPT and inserting the VIPER-INITIAL |
| 2187 | ;; value. Uses HISTORY-VAR. DEFAULT is the default value to accept if the |
| 2188 | ;; input is an empty string. |
| 2189 | ;; Default value is displayed until the user types something in the |
| 2190 | ;; minibuffer. |
| 2191 | ;; KEYMAP is used, if given, instead of minibuffer-local-map. |
| 2192 | ;; INIT-MESSAGE is the message temporarily displayed after entering the |
| 2193 | ;; minibuffer. |
| 2194 | (let ((minibuffer-setup-hook |
| 2195 | ;; stolen from add-hook |
| 2196 | (let ((old |
| 2197 | (if (boundp 'minibuffer-setup-hook) |
| 2198 | minibuffer-setup-hook |
| 2199 | nil))) |
| 2200 | (cons |
| 2201 | 'viper-minibuffer-standard-hook |
| 2202 | (if (or (not (listp old)) (eq (car old) 'lambda)) |
| 2203 | (list old) old)))) |
| 2204 | (val "") |
| 2205 | (padding "") |
| 2206 | temp-msg) |
| 2207 | |
| 2208 | (setq keymap (or keymap minibuffer-local-map) |
| 2209 | viper-initial (or viper-initial "") |
| 2210 | temp-msg (if default |
| 2211 | (format "(default %s) " default) |
| 2212 | "")) |
| 2213 | |
| 2214 | (setq viper-incomplete-ex-cmd nil) |
| 2215 | (setq val (read-from-minibuffer prompt |
| 2216 | (concat temp-msg viper-initial val padding) |
| 2217 | keymap nil history-var)) |
| 2218 | (setq minibuffer-setup-hook nil |
| 2219 | padding (viper-array-to-string (this-command-keys)) |
| 2220 | temp-msg "") |
| 2221 | ;; the following tries to be smart about what to put in history |
| 2222 | (if (not (string= val (car (eval history-var)))) |
| 2223 | (set history-var (cons val (eval history-var)))) |
| 2224 | (if (or (string= (nth 0 (eval history-var)) (nth 1 (eval history-var))) |
| 2225 | (string= (nth 0 (eval history-var)) "")) |
| 2226 | (set history-var (cdr (eval history-var)))) |
| 2227 | ;; If the user enters nothing but the prev cmd wasn't viper-ex, |
| 2228 | ;; viper-command-argument, or `! shell-command', this probably means |
| 2229 | ;; that the user typed something then erased. Return "" in this case, not |
| 2230 | ;; the default---the default is too confusing in this case. |
| 2231 | (cond ((and (string= val "") |
| 2232 | (not (string= prompt "!")) ; was a `! shell-command' |
| 2233 | (not (memq last-command |
| 2234 | '(viper-ex |
| 2235 | viper-command-argument |
| 2236 | t) |
| 2237 | ))) |
| 2238 | "") |
| 2239 | ((string= val "") (or default "")) |
| 2240 | (t val)) |
| 2241 | )) |
| 2242 | |
| 2243 | |
| 2244 | \f |
| 2245 | ;; insertion commands |
| 2246 | |
| 2247 | ;; Called when state changes from Insert Vi command mode. |
| 2248 | ;; Repeats the insertion command if Insert state was entered with prefix |
| 2249 | ;; argument > 1. |
| 2250 | (defun viper-repeat-insert-command () |
| 2251 | (let ((i-com (car viper-d-com)) |
| 2252 | (val (nth 1 viper-d-com)) |
| 2253 | (char (nth 2 viper-d-com))) |
| 2254 | (if (and val (> val 1)) ; first check that val is non-nil |
| 2255 | (progn |
| 2256 | (setq viper-d-com (list i-com (1- val) ?r nil nil nil)) |
| 2257 | (viper-repeat nil) |
| 2258 | (setq viper-d-com (list i-com val char nil nil nil)) |
| 2259 | )))) |
| 2260 | |
| 2261 | (defun viper-insert (arg) |
| 2262 | "Insert before point." |
| 2263 | (interactive "P") |
| 2264 | (viper-set-complex-command-for-undo) |
| 2265 | (let ((val (viper-p-val arg)) |
| 2266 | ;;(com (viper-getcom arg)) |
| 2267 | ) |
| 2268 | (viper-set-destructive-command (list 'viper-insert val ?r nil nil nil)) |
| 2269 | (if (eq viper-intermediate-command 'viper-repeat) |
| 2270 | (viper-loop val (viper-yank-last-insertion)) |
| 2271 | (viper-change-state-to-insert)))) |
| 2272 | |
| 2273 | (defun viper-append (arg) |
| 2274 | "Append after point." |
| 2275 | (interactive "P") |
| 2276 | (viper-set-complex-command-for-undo) |
| 2277 | (let ((val (viper-p-val arg)) |
| 2278 | ;;(com (viper-getcom arg)) |
| 2279 | ) |
| 2280 | (viper-set-destructive-command (list 'viper-append val ?r nil nil nil)) |
| 2281 | (if (not (eolp)) (forward-char)) |
| 2282 | (if (eq viper-intermediate-command 'viper-repeat) |
| 2283 | (viper-loop val (viper-yank-last-insertion)) |
| 2284 | (viper-change-state-to-insert)))) |
| 2285 | |
| 2286 | (defun viper-Append (arg) |
| 2287 | "Append at end of line." |
| 2288 | (interactive "P") |
| 2289 | (viper-set-complex-command-for-undo) |
| 2290 | (let ((val (viper-p-val arg)) |
| 2291 | ;;(com (viper-getcom arg)) |
| 2292 | ) |
| 2293 | (viper-set-destructive-command (list 'viper-Append val ?r nil nil nil)) |
| 2294 | (end-of-line) |
| 2295 | (if (eq viper-intermediate-command 'viper-repeat) |
| 2296 | (viper-loop val (viper-yank-last-insertion)) |
| 2297 | (viper-change-state-to-insert)))) |
| 2298 | |
| 2299 | (defun viper-Insert (arg) |
| 2300 | "Insert before first non-white." |
| 2301 | (interactive "P") |
| 2302 | (viper-set-complex-command-for-undo) |
| 2303 | (let ((val (viper-p-val arg)) |
| 2304 | ;;(com (viper-getcom arg)) |
| 2305 | ) |
| 2306 | (viper-set-destructive-command (list 'viper-Insert val ?r nil nil nil)) |
| 2307 | (back-to-indentation) |
| 2308 | (if (eq viper-intermediate-command 'viper-repeat) |
| 2309 | (viper-loop val (viper-yank-last-insertion)) |
| 2310 | (viper-change-state-to-insert)))) |
| 2311 | |
| 2312 | (defun viper-open-line (arg) |
| 2313 | "Open line below." |
| 2314 | (interactive "P") |
| 2315 | (viper-set-complex-command-for-undo) |
| 2316 | (let ((val (viper-p-val arg)) |
| 2317 | ;;(com (viper-getcom arg)) |
| 2318 | ) |
| 2319 | (viper-set-destructive-command (list 'viper-open-line val ?r nil nil nil)) |
| 2320 | (let ((col (current-indentation))) |
| 2321 | (if (eq viper-intermediate-command 'viper-repeat) |
| 2322 | (viper-loop val |
| 2323 | (end-of-line) |
| 2324 | (newline 1) |
| 2325 | (viper-indent-line col) |
| 2326 | (viper-yank-last-insertion)) |
| 2327 | (end-of-line) |
| 2328 | (newline 1) |
| 2329 | (viper-indent-line col) |
| 2330 | (viper-change-state-to-insert))))) |
| 2331 | |
| 2332 | (defun viper-Open-line (arg) |
| 2333 | "Open line above." |
| 2334 | (interactive "P") |
| 2335 | (viper-set-complex-command-for-undo) |
| 2336 | (let ((val (viper-p-val arg)) |
| 2337 | ;;(com (viper-getcom arg)) |
| 2338 | ) |
| 2339 | (viper-set-destructive-command (list 'viper-Open-line val ?r nil nil nil)) |
| 2340 | (let ((col (current-indentation))) |
| 2341 | (if (eq viper-intermediate-command 'viper-repeat) |
| 2342 | (viper-loop val |
| 2343 | (beginning-of-line) |
| 2344 | (open-line 1) |
| 2345 | (viper-indent-line col) |
| 2346 | (viper-yank-last-insertion)) |
| 2347 | (beginning-of-line) |
| 2348 | (open-line 1) |
| 2349 | (viper-indent-line col) |
| 2350 | (viper-change-state-to-insert))))) |
| 2351 | |
| 2352 | (defun viper-open-line-at-point (arg) |
| 2353 | "Open line at point." |
| 2354 | (interactive "P") |
| 2355 | (viper-set-complex-command-for-undo) |
| 2356 | (let ((val (viper-p-val arg)) |
| 2357 | ;;(com (viper-getcom arg)) |
| 2358 | ) |
| 2359 | (viper-set-destructive-command |
| 2360 | (list 'viper-open-line-at-point val ?r nil nil nil)) |
| 2361 | (if (eq viper-intermediate-command 'viper-repeat) |
| 2362 | (viper-loop val |
| 2363 | (open-line 1) |
| 2364 | (viper-yank-last-insertion)) |
| 2365 | (open-line 1) |
| 2366 | (viper-change-state-to-insert)))) |
| 2367 | |
| 2368 | ;; bound to s |
| 2369 | (defun viper-substitute (arg) |
| 2370 | "Substitute characters." |
| 2371 | (interactive "P") |
| 2372 | (let ((val (viper-p-val arg)) |
| 2373 | ;;(com (viper-getcom arg)) |
| 2374 | ) |
| 2375 | (push-mark nil t) |
| 2376 | (forward-char val) |
| 2377 | (if (eq viper-intermediate-command 'viper-repeat) |
| 2378 | (viper-change-subr (mark t) (point)) |
| 2379 | (viper-change (mark t) (point))) |
| 2380 | ;; com is set to ?r when we repeat this command with dot |
| 2381 | (viper-set-destructive-command (list 'viper-substitute val ?r nil nil nil)) |
| 2382 | )) |
| 2383 | |
| 2384 | ;; Command bound to S |
| 2385 | (defun viper-substitute-line (arg) |
| 2386 | "Substitute lines." |
| 2387 | (interactive "p") |
| 2388 | (viper-set-complex-command-for-undo) |
| 2389 | (viper-line (cons arg ?C))) |
| 2390 | |
| 2391 | ;; Prepare for replace |
| 2392 | (defun viper-start-replace () |
| 2393 | (setq viper-began-as-replace t |
| 2394 | viper-sitting-in-replace t |
| 2395 | viper-replace-chars-to-delete 0) |
| 2396 | (add-hook |
| 2397 | 'viper-after-change-functions 'viper-replace-mode-spy-after t 'local) |
| 2398 | (add-hook |
| 2399 | 'viper-before-change-functions 'viper-replace-mode-spy-before t 'local) |
| 2400 | ;; this will get added repeatedly, but no harm |
| 2401 | (add-hook 'after-change-functions 'viper-after-change-sentinel t) |
| 2402 | (add-hook 'before-change-functions 'viper-before-change-sentinel t) |
| 2403 | (viper-move-marker-locally |
| 2404 | 'viper-last-posn-in-replace-region (viper-replace-start)) |
| 2405 | (add-hook |
| 2406 | 'viper-post-command-hooks 'viper-replace-state-post-command-sentinel |
| 2407 | t 'local) |
| 2408 | (add-hook |
| 2409 | 'viper-pre-command-hooks 'viper-replace-state-pre-command-sentinel t 'local) |
| 2410 | ;; guard against a smarty who switched from R-replace to normal replace |
| 2411 | (remove-hook |
| 2412 | 'viper-post-command-hooks 'viper-R-state-post-command-sentinel 'local) |
| 2413 | (if overwrite-mode (overwrite-mode -1)) |
| 2414 | ) |
| 2415 | |
| 2416 | |
| 2417 | (defun viper-replace-mode-spy-before (beg end) |
| 2418 | (setq viper-replace-region-chars-deleted (viper-chars-in-region beg end)) |
| 2419 | ) |
| 2420 | |
| 2421 | ;; Invoked as an after-change-function to calculate how many chars have to be |
| 2422 | ;; deleted. This function may be called several times within a single command, |
| 2423 | ;; if this command performs several separate buffer changes. Therefore, if |
| 2424 | ;; adds up the number of chars inserted and subtracts the number of chars |
| 2425 | ;; deleted. |
| 2426 | (defun viper-replace-mode-spy-after (beg end length) |
| 2427 | (if (memq viper-intermediate-command |
| 2428 | '(dabbrev-expand hippie-expand repeating-insertion-from-ring)) |
| 2429 | ;; Take special care of text insertion from insertion ring inside |
| 2430 | ;; replacement overlays. |
| 2431 | (progn |
| 2432 | (setq viper-replace-chars-to-delete 0) |
| 2433 | (viper-move-marker-locally |
| 2434 | 'viper-last-posn-in-replace-region (point))) |
| 2435 | |
| 2436 | (let* ((real-end (min end (viper-replace-end))) |
| 2437 | (column-shift (- (save-excursion (goto-char real-end) |
| 2438 | (current-column)) |
| 2439 | (save-excursion (goto-char beg) |
| 2440 | (current-column)))) |
| 2441 | (chars-deleted 0)) |
| 2442 | |
| 2443 | (if (> length 0) |
| 2444 | (setq chars-deleted viper-replace-region-chars-deleted)) |
| 2445 | (setq viper-replace-region-chars-deleted 0) |
| 2446 | (setq viper-replace-chars-to-delete |
| 2447 | (+ viper-replace-chars-to-delete |
| 2448 | (- |
| 2449 | ;; if column shift is bigger, due to a TAB insertion, take |
| 2450 | ;; column-shift instead of the number of inserted chars |
| 2451 | (max (viper-chars-in-region beg real-end) |
| 2452 | ;; This test accounts for Chinese/Japanese/... chars, |
| 2453 | ;; which occupy 2 columns instead of one. If we use |
| 2454 | ;; column-shift here, we may delete two chars instead of |
| 2455 | ;; one when the user types one Chinese character. |
| 2456 | ;; Deleting two would be OK, if they were European chars, |
| 2457 | ;; but it is not OK if they are Chinese chars. |
| 2458 | ;; Since it is hard to |
| 2459 | ;; figure out which characters are being deleted in any |
| 2460 | ;; given region, we decided to treat Eastern and European |
| 2461 | ;; characters equally, even though Eastern chars may |
| 2462 | ;; occupy more columns. |
| 2463 | (if (memq this-command '(self-insert-command |
| 2464 | quoted-insert viper-insert-tab)) |
| 2465 | column-shift |
| 2466 | 0)) |
| 2467 | ;; the number of deleted chars |
| 2468 | chars-deleted))) |
| 2469 | |
| 2470 | (viper-move-marker-locally |
| 2471 | 'viper-last-posn-in-replace-region |
| 2472 | (max (if (> end (viper-replace-end)) (viper-replace-end) end) |
| 2473 | (or (marker-position viper-last-posn-in-replace-region) |
| 2474 | (viper-replace-start)) |
| 2475 | )) |
| 2476 | |
| 2477 | ))) |
| 2478 | |
| 2479 | |
| 2480 | ;; Delete stuff between viper-last-posn-in-replace-region and the end of |
| 2481 | ;; viper-replace-overlay-marker, if viper-last-posn-in-replace-region is within |
| 2482 | ;; the overlay and current point is before the end of the overlay. |
| 2483 | ;; Don't delete anything if current point is past the end of the overlay. |
| 2484 | (defun viper-finish-change () |
| 2485 | (remove-hook |
| 2486 | 'viper-after-change-functions 'viper-replace-mode-spy-after 'local) |
| 2487 | (remove-hook |
| 2488 | 'viper-before-change-functions 'viper-replace-mode-spy-before 'local) |
| 2489 | (remove-hook |
| 2490 | 'viper-post-command-hooks 'viper-replace-state-post-command-sentinel 'local) |
| 2491 | (remove-hook |
| 2492 | 'viper-pre-command-hooks 'viper-replace-state-pre-command-sentinel 'local) |
| 2493 | (viper-restore-cursor-color 'after-replace-mode) |
| 2494 | (setq viper-sitting-in-replace nil) ; just in case we'll need to know it |
| 2495 | (save-excursion |
| 2496 | (if (and viper-replace-overlay |
| 2497 | (viper-pos-within-region viper-last-posn-in-replace-region |
| 2498 | (viper-replace-start) |
| 2499 | (viper-replace-end)) |
| 2500 | (< (point) (viper-replace-end))) |
| 2501 | (delete-region |
| 2502 | viper-last-posn-in-replace-region (viper-replace-end)))) |
| 2503 | |
| 2504 | (if (eq viper-current-state 'replace-state) |
| 2505 | (viper-downgrade-to-insert)) |
| 2506 | ;; replace mode ended => nullify viper-last-posn-in-replace-region |
| 2507 | (viper-move-marker-locally 'viper-last-posn-in-replace-region nil) |
| 2508 | (viper-hide-replace-overlay) |
| 2509 | (viper-refresh-mode-line) |
| 2510 | (viper-put-string-on-kill-ring viper-last-replace-region) |
| 2511 | ) |
| 2512 | |
| 2513 | ;; Make STRING be the first element of the kill ring. |
| 2514 | (defun viper-put-string-on-kill-ring (string) |
| 2515 | (setq kill-ring (cons string kill-ring)) |
| 2516 | (if (> (length kill-ring) kill-ring-max) |
| 2517 | (setcdr (nthcdr (1- kill-ring-max) kill-ring) nil)) |
| 2518 | (setq kill-ring-yank-pointer kill-ring)) |
| 2519 | |
| 2520 | (defun viper-finish-R-mode () |
| 2521 | (remove-hook |
| 2522 | 'viper-post-command-hooks 'viper-R-state-post-command-sentinel 'local) |
| 2523 | (remove-hook |
| 2524 | 'viper-pre-command-hooks 'viper-replace-state-pre-command-sentinel 'local) |
| 2525 | (viper-downgrade-to-insert)) |
| 2526 | |
| 2527 | (defun viper-start-R-mode () |
| 2528 | ;; Leave arg as 1, not t: XEmacs insists that it must be a pos number |
| 2529 | (overwrite-mode 1) |
| 2530 | (add-hook |
| 2531 | 'viper-post-command-hooks 'viper-R-state-post-command-sentinel t 'local) |
| 2532 | (add-hook |
| 2533 | 'viper-pre-command-hooks 'viper-replace-state-pre-command-sentinel t 'local) |
| 2534 | ;; guard against a smarty who switched from R-replace to normal replace |
| 2535 | (remove-hook |
| 2536 | 'viper-post-command-hooks 'viper-replace-state-post-command-sentinel 'local) |
| 2537 | ) |
| 2538 | |
| 2539 | |
| 2540 | |
| 2541 | (defun viper-replace-state-exit-cmd () |
| 2542 | "Binding for keys that cause Replace state to switch to Vi or to Insert. |
| 2543 | These keys are ESC, RET, and LineFeed." |
| 2544 | (interactive) |
| 2545 | (if overwrite-mode ; if in replace mode invoked via 'R' |
| 2546 | (viper-finish-R-mode) |
| 2547 | (viper-finish-change)) |
| 2548 | (let (com) |
| 2549 | (if (eq this-command 'viper-intercept-ESC-key) |
| 2550 | (setq com 'viper-exit-insert-state) |
| 2551 | (viper-set-unread-command-events last-input-event) |
| 2552 | (setq com (key-binding (viper-read-key-sequence nil)))) |
| 2553 | |
| 2554 | (condition-case conds |
| 2555 | (command-execute com) |
| 2556 | (error |
| 2557 | (viper-message-conditions conds))) |
| 2558 | ) |
| 2559 | (viper-hide-replace-overlay)) |
| 2560 | |
| 2561 | |
| 2562 | (defun viper-replace-state-carriage-return () |
| 2563 | "Carriage return in Viper replace state." |
| 2564 | (interactive) |
| 2565 | ;; If Emacs start supporting overlay maps, as it currently supports |
| 2566 | ;; text-property maps, we could do away with viper-replace-minor-mode and |
| 2567 | ;; just have keymap attached to replace overlay. Then the "if part" of this |
| 2568 | ;; statement can be deleted. |
| 2569 | (if (or (< (point) (viper-replace-start)) |
| 2570 | (> (point) (viper-replace-end))) |
| 2571 | (let (viper-replace-minor-mode com) |
| 2572 | (viper-set-unread-command-events last-input-event) |
| 2573 | (setq com (key-binding (read-key-sequence nil))) |
| 2574 | (condition-case conds |
| 2575 | (command-execute com) |
| 2576 | (error |
| 2577 | (viper-message-conditions conds)))) |
| 2578 | (if (not viper-allow-multiline-replace-regions) |
| 2579 | (viper-replace-state-exit-cmd) |
| 2580 | (if (viper-same-line (point) (viper-replace-end)) |
| 2581 | (viper-replace-state-exit-cmd) |
| 2582 | ;; delete the rest of line |
| 2583 | (delete-region (point) (viper-line-pos 'end)) |
| 2584 | (save-excursion |
| 2585 | (end-of-line) |
| 2586 | (if (eobp) (error "Last line in buffer"))) |
| 2587 | ;; skip to the next line |
| 2588 | (forward-line 1) |
| 2589 | (back-to-indentation) |
| 2590 | )))) |
| 2591 | |
| 2592 | |
| 2593 | ;; This is the function bound to 'R'---unlimited replace. |
| 2594 | ;; Similar to Emacs's own overwrite-mode. |
| 2595 | (defun viper-overwrite (arg) |
| 2596 | "Begin overwrite mode." |
| 2597 | (interactive "P") |
| 2598 | (let ((val (viper-p-val arg)) |
| 2599 | ;;(com (viper-getcom arg)) |
| 2600 | (len)) |
| 2601 | (viper-set-destructive-command (list 'viper-overwrite val ?r nil nil nil)) |
| 2602 | (if (eq viper-intermediate-command 'viper-repeat) |
| 2603 | (progn |
| 2604 | ;; Viper saves inserted text in viper-last-insertion |
| 2605 | (setq len (length viper-last-insertion)) |
| 2606 | (delete-char (min len (- (point-max) (point) 1))) |
| 2607 | (viper-loop val (viper-yank-last-insertion))) |
| 2608 | (setq last-command 'viper-overwrite) |
| 2609 | (viper-set-complex-command-for-undo) |
| 2610 | (viper-set-replace-overlay (point) (viper-line-pos 'end)) |
| 2611 | (viper-change-state-to-replace) |
| 2612 | ))) |
| 2613 | |
| 2614 | \f |
| 2615 | ;; line commands |
| 2616 | |
| 2617 | (defun viper-line (arg) |
| 2618 | (let ((val (car arg)) |
| 2619 | (com (cdr arg))) |
| 2620 | (viper-move-marker-locally 'viper-com-point (point)) |
| 2621 | (if (not (eobp)) |
| 2622 | (viper-next-line-carefully (1- val))) |
| 2623 | ;; the following ensures that dd, cc, D, yy will do the right thing on the |
| 2624 | ;; last line of buffer when this line has no \n. |
| 2625 | (viper-add-newline-at-eob-if-necessary) |
| 2626 | (viper-execute-com 'viper-line val com)) |
| 2627 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) |
| 2628 | ) |
| 2629 | |
| 2630 | (defun viper-yank-line (arg) |
| 2631 | "Yank ARG lines (in Vi's sense)." |
| 2632 | (interactive "P") |
| 2633 | (let ((val (viper-p-val arg))) |
| 2634 | (viper-line (cons val ?Y)))) |
| 2635 | |
| 2636 | \f |
| 2637 | ;; region commands |
| 2638 | |
| 2639 | (defun viper-region (arg) |
| 2640 | "Execute command on a region." |
| 2641 | (interactive "P") |
| 2642 | (let ((val (viper-P-val arg)) |
| 2643 | (com (viper-getcom arg))) |
| 2644 | (viper-move-marker-locally 'viper-com-point (point)) |
| 2645 | (exchange-point-and-mark) |
| 2646 | (viper-execute-com 'viper-region val com))) |
| 2647 | |
| 2648 | (defun viper-Region (arg) |
| 2649 | "Execute command on a Region." |
| 2650 | (interactive "P") |
| 2651 | (let ((val (viper-P-val arg)) |
| 2652 | (com (viper-getCom arg))) |
| 2653 | (viper-move-marker-locally 'viper-com-point (point)) |
| 2654 | (exchange-point-and-mark) |
| 2655 | (viper-execute-com 'viper-Region val com))) |
| 2656 | |
| 2657 | (defun viper-replace-char (arg) |
| 2658 | "Replace the following ARG chars by the character read." |
| 2659 | (interactive "P") |
| 2660 | (if (and (eolp) (bolp)) (error "No character to replace here")) |
| 2661 | (let ((val (viper-p-val arg)) |
| 2662 | (com (viper-getcom arg))) |
| 2663 | (viper-replace-char-subr com val) |
| 2664 | (if (and (eolp) (not (bolp))) (forward-char 1)) |
| 2665 | (setq viper-this-command-keys |
| 2666 | (format "%sr" (if (integerp arg) arg ""))) |
| 2667 | (viper-set-destructive-command |
| 2668 | (list 'viper-replace-char val ?r nil viper-d-char nil)) |
| 2669 | )) |
| 2670 | |
| 2671 | (defun viper-replace-char-subr (com arg) |
| 2672 | (let ((inhibit-quit t) |
| 2673 | char) |
| 2674 | (viper-set-complex-command-for-undo) |
| 2675 | (or (eq viper-intermediate-command 'viper-repeat) |
| 2676 | (viper-special-read-and-insert-char)) |
| 2677 | |
| 2678 | (delete-char 1 t) |
| 2679 | (setq char (if com viper-d-char (viper-char-at-pos 'backward))) |
| 2680 | |
| 2681 | (if com (insert char)) |
| 2682 | |
| 2683 | (setq viper-d-char char) |
| 2684 | |
| 2685 | (viper-loop (1- (if (> arg 0) arg (- arg))) |
| 2686 | (delete-char 1 t) |
| 2687 | (insert char)) |
| 2688 | |
| 2689 | (viper-adjust-undo) |
| 2690 | (backward-char arg) |
| 2691 | )) |
| 2692 | |
| 2693 | \f |
| 2694 | ;; basic cursor movement. j, k, l, h commands. |
| 2695 | |
| 2696 | (defun viper-forward-char (arg) |
| 2697 | "Move point right ARG characters (left if ARG negative). |
| 2698 | On reaching end of line, stop and signal error." |
| 2699 | (interactive "P") |
| 2700 | (viper-leave-region-active) |
| 2701 | (let ((val (viper-p-val arg)) |
| 2702 | (com (viper-getcom arg))) |
| 2703 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 2704 | (if viper-ex-style-motion |
| 2705 | (progn |
| 2706 | ;; the boundary condition check gets weird here because |
| 2707 | ;; forward-char may be the parameter of a delete, and 'dl' works |
| 2708 | ;; just like 'x' for the last char on a line, so we have to allow |
| 2709 | ;; the forward motion before the 'viper-execute-com', but, of |
| 2710 | ;; course, 'dl' doesn't work on an empty line, so we have to |
| 2711 | ;; catch that condition before 'viper-execute-com' |
| 2712 | (if (and (eolp) (bolp)) (error "Viper bell") (forward-char val)) |
| 2713 | (if com (viper-execute-com 'viper-forward-char val com)) |
| 2714 | (if (eolp) (progn (backward-char 1) (error "Viper bell")))) |
| 2715 | (forward-char val) |
| 2716 | (if com (viper-execute-com 'viper-forward-char val com))))) |
| 2717 | |
| 2718 | |
| 2719 | (defun viper-backward-char (arg) |
| 2720 | "Move point left ARG characters (right if ARG negative). |
| 2721 | On reaching beginning of line, stop and signal error." |
| 2722 | (interactive "P") |
| 2723 | (viper-leave-region-active) |
| 2724 | (let ((val (viper-p-val arg)) |
| 2725 | (com (viper-getcom arg))) |
| 2726 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 2727 | (if viper-ex-style-motion |
| 2728 | (progn |
| 2729 | (if (bolp) (error "Viper bell") (backward-char val)) |
| 2730 | (if com (viper-execute-com 'viper-backward-char val com))) |
| 2731 | (backward-char val) |
| 2732 | (if com (viper-execute-com 'viper-backward-char val com))))) |
| 2733 | |
| 2734 | |
| 2735 | ;; Like forward-char, but doesn't move at end of buffer. |
| 2736 | ;; Returns distance traveled |
| 2737 | ;; (positive or 0, if arg positive; negative if arg negative). |
| 2738 | (defun viper-forward-char-carefully (&optional arg) |
| 2739 | (setq arg (or arg 1)) |
| 2740 | (let ((pt (point))) |
| 2741 | (condition-case nil |
| 2742 | (forward-char arg) |
| 2743 | (error nil)) |
| 2744 | (if (< (point) pt) ; arg was negative |
| 2745 | (- (viper-chars-in-region pt (point))) |
| 2746 | (viper-chars-in-region pt (point))))) |
| 2747 | |
| 2748 | |
| 2749 | ;; Like backward-char, but doesn't move at beg of buffer. |
| 2750 | ;; Returns distance traveled |
| 2751 | ;; (negative or 0, if arg positive; positive if arg negative). |
| 2752 | (defun viper-backward-char-carefully (&optional arg) |
| 2753 | (setq arg (or arg 1)) |
| 2754 | (let ((pt (point))) |
| 2755 | (condition-case nil |
| 2756 | (backward-char arg) |
| 2757 | (error nil)) |
| 2758 | (if (> (point) pt) ; arg was negative |
| 2759 | (viper-chars-in-region pt (point)) |
| 2760 | (- (viper-chars-in-region pt (point)))))) |
| 2761 | |
| 2762 | (defun viper-next-line-carefully (arg) |
| 2763 | (condition-case nil |
| 2764 | ;; do not use forward-line! need to keep column |
| 2765 | (let ((line-move-visual nil)) |
| 2766 | (if (featurep 'emacs) |
| 2767 | (with-no-warnings (next-line arg)) |
| 2768 | (next-line arg))) |
| 2769 | (error nil))) |
| 2770 | |
| 2771 | |
| 2772 | \f |
| 2773 | ;;; Word command |
| 2774 | |
| 2775 | ;; Words are formed from alpha's and nonalphas - <sp>,\t\n are separators for |
| 2776 | ;; word movement. When executed with a destructive command, \n is usually left |
| 2777 | ;; untouched for the last word. Viper uses syntax table to determine what is a |
| 2778 | ;; word and what is a separator. However, \n is always a separator. Also, if |
| 2779 | ;; viper-syntax-preference is 'vi, then `_' is part of the word. |
| 2780 | |
| 2781 | ;; skip only one \n |
| 2782 | (defun viper-skip-separators (forward) |
| 2783 | (if forward |
| 2784 | (progn |
| 2785 | (viper-skip-all-separators-forward 'within-line) |
| 2786 | (if (looking-at "\n") |
| 2787 | (progn |
| 2788 | (forward-char) |
| 2789 | (viper-skip-all-separators-forward 'within-line)))) |
| 2790 | ;; check for eob and white space before it. move off of eob |
| 2791 | (if (and (eobp) (save-excursion |
| 2792 | (viper-backward-char-carefully) |
| 2793 | (viper-looking-at-separator))) |
| 2794 | (viper-backward-char-carefully)) |
| 2795 | (viper-skip-all-separators-backward 'within-line) |
| 2796 | (viper-backward-char-carefully) |
| 2797 | (if (looking-at "\n") |
| 2798 | (viper-skip-all-separators-backward 'within-line) |
| 2799 | (or (viper-looking-at-separator) (forward-char))))) |
| 2800 | |
| 2801 | |
| 2802 | (defun viper-forward-word-kernel (val) |
| 2803 | (while (> val 0) |
| 2804 | (cond ((viper-looking-at-alpha) |
| 2805 | (viper-skip-alpha-forward "_") |
| 2806 | (viper-skip-separators t)) |
| 2807 | ((viper-looking-at-separator) |
| 2808 | (viper-skip-separators t)) |
| 2809 | ((not (viper-looking-at-alphasep)) |
| 2810 | (viper-skip-nonalphasep-forward) |
| 2811 | (viper-skip-separators t))) |
| 2812 | (setq val (1- val)))) |
| 2813 | |
| 2814 | ;; first skip non-newline separators backward, then skip \n. Then, if TWICE is |
| 2815 | ;; non-nil, skip non-\n back again, but don't overshoot the limit LIM. |
| 2816 | (defun viper-separator-skipback-special (twice lim) |
| 2817 | (let ((prev-char (viper-char-at-pos 'backward)) |
| 2818 | (saved-point (point))) |
| 2819 | ;; skip non-newline separators backward |
| 2820 | (while (and (not (viper-memq-char prev-char '(nil \n))) |
| 2821 | (< lim (point)) |
| 2822 | ;; must be non-newline separator |
| 2823 | (if (eq viper-syntax-preference 'strict-vi) |
| 2824 | (viper-memq-char prev-char '(?\ ?\t)) |
| 2825 | (viper-memq-char (char-syntax prev-char) '(?\ ?-)))) |
| 2826 | (viper-backward-char-carefully) |
| 2827 | (setq prev-char (viper-char-at-pos 'backward))) |
| 2828 | |
| 2829 | (if (and (< lim (point)) (eq prev-char ?\n)) |
| 2830 | (backward-char) |
| 2831 | ;; If we skipped to the next word and the prefix of this line doesn't |
| 2832 | ;; consist of separators preceded by a newline, then don't skip backwards |
| 2833 | ;; at all. |
| 2834 | (goto-char saved-point)) |
| 2835 | (setq prev-char (viper-char-at-pos 'backward)) |
| 2836 | |
| 2837 | ;; skip again, but make sure we don't overshoot the limit |
| 2838 | (if twice |
| 2839 | (while (and (not (viper-memq-char prev-char '(nil \n))) |
| 2840 | (< lim (point)) |
| 2841 | ;; must be non-newline separator |
| 2842 | (if (eq viper-syntax-preference 'strict-vi) |
| 2843 | (viper-memq-char prev-char '(?\ ?\t)) |
| 2844 | (viper-memq-char (char-syntax prev-char) '(?\ ?-)))) |
| 2845 | (viper-backward-char-carefully) |
| 2846 | (setq prev-char (viper-char-at-pos 'backward)))) |
| 2847 | |
| 2848 | (if (= (point) lim) |
| 2849 | (viper-forward-char-carefully)) |
| 2850 | )) |
| 2851 | |
| 2852 | |
| 2853 | (defun viper-forward-word (arg) |
| 2854 | "Forward word." |
| 2855 | (interactive "P") |
| 2856 | (viper-leave-region-active) |
| 2857 | (let ((val (viper-p-val arg)) |
| 2858 | (com (viper-getcom arg))) |
| 2859 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 2860 | (viper-forward-word-kernel val) |
| 2861 | (if com |
| 2862 | (progn |
| 2863 | (cond ((viper-char-equal com ?c) |
| 2864 | (viper-separator-skipback-special 'twice viper-com-point)) |
| 2865 | ;; Yank words including the whitespace, but not newline |
| 2866 | ((viper-char-equal com ?y) |
| 2867 | (viper-separator-skipback-special nil viper-com-point)) |
| 2868 | ((viper-dotable-command-p com) |
| 2869 | (viper-separator-skipback-special nil viper-com-point))) |
| 2870 | (viper-execute-com 'viper-forward-word val com))) |
| 2871 | )) |
| 2872 | |
| 2873 | |
| 2874 | (defun viper-forward-Word (arg) |
| 2875 | "Forward word delimited by white characters." |
| 2876 | (interactive "P") |
| 2877 | (viper-leave-region-active) |
| 2878 | (let ((val (viper-p-val arg)) |
| 2879 | (com (viper-getcom arg))) |
| 2880 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 2881 | (viper-loop val |
| 2882 | (viper-skip-nonseparators 'forward) |
| 2883 | (viper-skip-separators t)) |
| 2884 | (if com (progn |
| 2885 | (cond ((viper-char-equal com ?c) |
| 2886 | (viper-separator-skipback-special 'twice viper-com-point)) |
| 2887 | ;; Yank words including the whitespace, but not newline |
| 2888 | ((viper-char-equal com ?y) |
| 2889 | (viper-separator-skipback-special nil viper-com-point)) |
| 2890 | ((viper-dotable-command-p com) |
| 2891 | (viper-separator-skipback-special nil viper-com-point))) |
| 2892 | (viper-execute-com 'viper-forward-Word val com))))) |
| 2893 | |
| 2894 | |
| 2895 | ;; this is a bit different from Vi, but Vi's end of word |
| 2896 | ;; makes no sense whatsoever |
| 2897 | (defun viper-end-of-word-kernel () |
| 2898 | (if (viper-end-of-word-p) (forward-char)) |
| 2899 | (if (viper-looking-at-separator) |
| 2900 | (viper-skip-all-separators-forward)) |
| 2901 | |
| 2902 | (cond ((viper-looking-at-alpha) (viper-skip-alpha-forward "_")) |
| 2903 | ((not (viper-looking-at-alphasep)) (viper-skip-nonalphasep-forward))) |
| 2904 | (viper-backward-char-carefully)) |
| 2905 | |
| 2906 | (defun viper-end-of-word-p () |
| 2907 | (or (eobp) |
| 2908 | (save-excursion |
| 2909 | (cond ((viper-looking-at-alpha) |
| 2910 | (forward-char) |
| 2911 | (not (viper-looking-at-alpha))) |
| 2912 | ((not (viper-looking-at-alphasep)) |
| 2913 | (forward-char) |
| 2914 | (viper-looking-at-alphasep)))))) |
| 2915 | |
| 2916 | |
| 2917 | (defun viper-end-of-word (arg &optional careful) |
| 2918 | "Move point to end of current word." |
| 2919 | (interactive "P") |
| 2920 | (viper-leave-region-active) |
| 2921 | (let ((val (viper-p-val arg)) |
| 2922 | (com (viper-getcom arg))) |
| 2923 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 2924 | (viper-loop val (viper-end-of-word-kernel)) |
| 2925 | (if com |
| 2926 | (progn |
| 2927 | (forward-char) |
| 2928 | (viper-execute-com 'viper-end-of-word val com))))) |
| 2929 | |
| 2930 | (defun viper-end-of-Word (arg) |
| 2931 | "Forward to end of word delimited by white character." |
| 2932 | (interactive "P") |
| 2933 | (viper-leave-region-active) |
| 2934 | (let ((val (viper-p-val arg)) |
| 2935 | (com (viper-getcom arg))) |
| 2936 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 2937 | (viper-loop val |
| 2938 | (viper-end-of-word-kernel) |
| 2939 | (viper-skip-nonseparators 'forward) |
| 2940 | (backward-char)) |
| 2941 | (if com |
| 2942 | (progn |
| 2943 | (forward-char) |
| 2944 | (viper-execute-com 'viper-end-of-Word val com))))) |
| 2945 | |
| 2946 | (defun viper-backward-word-kernel (val) |
| 2947 | (while (> val 0) |
| 2948 | (viper-backward-char-carefully) |
| 2949 | (cond ((viper-looking-at-alpha) |
| 2950 | (viper-skip-alpha-backward "_")) |
| 2951 | ((viper-looking-at-separator) |
| 2952 | (forward-char) |
| 2953 | (viper-skip-separators nil) |
| 2954 | (viper-backward-char-carefully) |
| 2955 | (cond ((viper-looking-at-alpha) |
| 2956 | (viper-skip-alpha-backward "_")) |
| 2957 | ((not (viper-looking-at-alphasep)) |
| 2958 | (viper-skip-nonalphasep-backward)) |
| 2959 | ((bobp)) ; could still be at separator, but at beg of buffer |
| 2960 | (t (forward-char)))) |
| 2961 | ((not (viper-looking-at-alphasep)) |
| 2962 | (viper-skip-nonalphasep-backward))) |
| 2963 | (setq val (1- val)))) |
| 2964 | |
| 2965 | (defun viper-backward-word (arg) |
| 2966 | "Backward word." |
| 2967 | (interactive "P") |
| 2968 | (viper-leave-region-active) |
| 2969 | (let ((val (viper-p-val arg)) |
| 2970 | (com (viper-getcom arg))) |
| 2971 | (if com |
| 2972 | (let (i) |
| 2973 | (if (setq i (save-excursion (backward-char) (looking-at "\n"))) |
| 2974 | (backward-char)) |
| 2975 | (viper-move-marker-locally 'viper-com-point (point)) |
| 2976 | (if i (forward-char)))) |
| 2977 | (viper-backward-word-kernel val) |
| 2978 | (if com (viper-execute-com 'viper-backward-word val com)))) |
| 2979 | |
| 2980 | (defun viper-backward-Word (arg) |
| 2981 | "Backward word delimited by white character." |
| 2982 | (interactive "P") |
| 2983 | (viper-leave-region-active) |
| 2984 | (let ((val (viper-p-val arg)) |
| 2985 | (com (viper-getcom arg))) |
| 2986 | (if com |
| 2987 | (let (i) |
| 2988 | (if (setq i (save-excursion (backward-char) (looking-at "\n"))) |
| 2989 | (backward-char)) |
| 2990 | (viper-move-marker-locally 'viper-com-point (point)) |
| 2991 | (if i (forward-char)))) |
| 2992 | (viper-loop val |
| 2993 | (viper-skip-separators nil) ; nil means backward here |
| 2994 | (viper-skip-nonseparators 'backward)) |
| 2995 | (if com (viper-execute-com 'viper-backward-Word val com)))) |
| 2996 | |
| 2997 | |
| 2998 | \f |
| 2999 | ;; line commands |
| 3000 | |
| 3001 | (defun viper-beginning-of-line (arg) |
| 3002 | "Go to beginning of line." |
| 3003 | (interactive "P") |
| 3004 | (viper-leave-region-active) |
| 3005 | (let ((val (viper-p-val arg)) |
| 3006 | (com (viper-getcom arg))) |
| 3007 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3008 | (beginning-of-line val) |
| 3009 | (if com (viper-execute-com 'viper-beginning-of-line val com)))) |
| 3010 | |
| 3011 | (defun viper-bol-and-skip-white (arg) |
| 3012 | "Beginning of line at first non-white character." |
| 3013 | (interactive "P") |
| 3014 | (viper-leave-region-active) |
| 3015 | (let ((val (viper-p-val arg)) |
| 3016 | (com (viper-getcom arg))) |
| 3017 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3018 | (forward-to-indentation (1- val)) |
| 3019 | (if com (viper-execute-com 'viper-bol-and-skip-white val com)))) |
| 3020 | |
| 3021 | (defun viper-goto-eol (arg) |
| 3022 | "Go to end of line." |
| 3023 | (interactive "P") |
| 3024 | (viper-leave-region-active) |
| 3025 | (let ((val (viper-p-val arg)) |
| 3026 | (com (viper-getcom arg))) |
| 3027 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3028 | (end-of-line val) |
| 3029 | (if com (viper-execute-com 'viper-goto-eol val com)) |
| 3030 | (if viper-ex-style-motion |
| 3031 | (if (and (eolp) (not (bolp)) |
| 3032 | ;; a fix for viper-change-to-eol |
| 3033 | (not (equal viper-current-state 'insert-state))) |
| 3034 | (backward-char 1) |
| 3035 | )))) |
| 3036 | |
| 3037 | |
| 3038 | (defun viper-goto-col (arg) |
| 3039 | "Go to ARG's column." |
| 3040 | (interactive "P") |
| 3041 | (viper-leave-region-active) |
| 3042 | (let ((val (viper-p-val arg)) |
| 3043 | (com (viper-getcom arg)) |
| 3044 | line-len) |
| 3045 | (setq line-len |
| 3046 | (viper-chars-in-region |
| 3047 | (viper-line-pos 'start) (viper-line-pos 'end))) |
| 3048 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3049 | (beginning-of-line) |
| 3050 | (forward-char (1- (min line-len val))) |
| 3051 | (while (> (current-column) (1- val)) |
| 3052 | (backward-char 1)) |
| 3053 | (if com (viper-execute-com 'viper-goto-col val com)) |
| 3054 | (save-excursion |
| 3055 | (end-of-line) |
| 3056 | (if (> val (current-column)) (error "Viper bell"))) |
| 3057 | )) |
| 3058 | |
| 3059 | |
| 3060 | (defun viper-next-line (arg) |
| 3061 | "Go to next line." |
| 3062 | (interactive "P") |
| 3063 | (viper-leave-region-active) |
| 3064 | (let ((val (viper-p-val arg)) |
| 3065 | (com (viper-getCom arg))) |
| 3066 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3067 | ;; do not use forward-line! need to keep column |
| 3068 | (let ((line-move-visual nil)) |
| 3069 | (if (featurep 'emacs) |
| 3070 | (with-no-warnings (next-line val)) |
| 3071 | (next-line val))) |
| 3072 | (if viper-ex-style-motion |
| 3073 | (if (and (eolp) (not (bolp))) (backward-char 1))) |
| 3074 | (setq this-command 'next-line) |
| 3075 | (if com (viper-execute-com 'viper-next-line val com)))) |
| 3076 | |
| 3077 | (declare-function widget-type "wid-edit" (widget)) |
| 3078 | (declare-function widget-button-press "wid-edit" (pos &optional event)) |
| 3079 | (declare-function viper-set-hooks "viper" ()) |
| 3080 | |
| 3081 | (defun viper-next-line-at-bol (arg) |
| 3082 | "Next line at beginning of line. |
| 3083 | If point is on a widget or a button, simulate clicking on that widget/button." |
| 3084 | (interactive "P") |
| 3085 | (let* ((field (get-char-property (point) 'field)) |
| 3086 | (button (get-char-property (point) 'button)) |
| 3087 | (doc (get-char-property (point) 'widget-doc)) |
| 3088 | (widget (or field button doc))) |
| 3089 | (if (and widget |
| 3090 | (if (symbolp widget) |
| 3091 | (get widget 'widget-type) |
| 3092 | (and (consp widget) |
| 3093 | (get (widget-type widget) 'widget-type)))) |
| 3094 | (widget-button-press (point)) |
| 3095 | (if (and (fboundp 'button-at) (fboundp 'push-button) (button-at (point))) |
| 3096 | (push-button) |
| 3097 | ;; not a widget or a button |
| 3098 | (viper-leave-region-active) |
| 3099 | (save-excursion |
| 3100 | (end-of-line) |
| 3101 | (if (eobp) (error "Last line in buffer"))) |
| 3102 | (let ((val (viper-p-val arg)) |
| 3103 | (com (viper-getCom arg))) |
| 3104 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3105 | (forward-line val) |
| 3106 | (back-to-indentation) |
| 3107 | (if com (viper-execute-com 'viper-next-line-at-bol val com))))))) |
| 3108 | |
| 3109 | |
| 3110 | (defun viper-previous-line (arg) |
| 3111 | "Go to previous line." |
| 3112 | (interactive "P") |
| 3113 | (viper-leave-region-active) |
| 3114 | (let ((val (viper-p-val arg)) |
| 3115 | (com (viper-getCom arg))) |
| 3116 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3117 | ;; do not use forward-line! need to keep column |
| 3118 | (let ((line-move-visual nil)) |
| 3119 | (if (featurep 'emacs) |
| 3120 | (with-no-warnings (previous-line val)) |
| 3121 | (previous-line val))) |
| 3122 | (if viper-ex-style-motion |
| 3123 | (if (and (eolp) (not (bolp))) (backward-char 1))) |
| 3124 | (setq this-command 'previous-line) |
| 3125 | (if com (viper-execute-com 'viper-previous-line val com)))) |
| 3126 | |
| 3127 | |
| 3128 | (defun viper-previous-line-at-bol (arg) |
| 3129 | "Previous line at beginning of line." |
| 3130 | (interactive "P") |
| 3131 | (viper-leave-region-active) |
| 3132 | (save-excursion |
| 3133 | (beginning-of-line) |
| 3134 | (if (bobp) (error "First line in buffer"))) |
| 3135 | (let ((val (viper-p-val arg)) |
| 3136 | (com (viper-getCom arg))) |
| 3137 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3138 | (forward-line (- val)) |
| 3139 | (back-to-indentation) |
| 3140 | (if com (viper-execute-com 'viper-previous-line val com)))) |
| 3141 | |
| 3142 | (defun viper-change-to-eol (arg) |
| 3143 | "Change to end of line." |
| 3144 | (interactive "P") |
| 3145 | (viper-goto-eol (cons arg ?c))) |
| 3146 | |
| 3147 | (defun viper-kill-line (arg) |
| 3148 | "Delete line." |
| 3149 | (interactive "P") |
| 3150 | (viper-goto-eol (cons arg ?d))) |
| 3151 | |
| 3152 | (defun viper-erase-line (arg) |
| 3153 | "Erase line." |
| 3154 | (interactive "P") |
| 3155 | (viper-beginning-of-line (cons arg ?d))) |
| 3156 | |
| 3157 | \f |
| 3158 | ;;; Moving around |
| 3159 | |
| 3160 | (defun viper-goto-line (arg) |
| 3161 | "Go to ARG's line. Without ARG go to end of buffer." |
| 3162 | (interactive "P") |
| 3163 | (let ((val (viper-P-val arg)) |
| 3164 | (com (viper-getCom arg))) |
| 3165 | (viper-move-marker-locally 'viper-com-point (point)) |
| 3166 | (viper-deactivate-mark) |
| 3167 | (push-mark nil t) |
| 3168 | (if (null val) |
| 3169 | (goto-char (point-max)) |
| 3170 | (goto-char (point-min)) |
| 3171 | (forward-line (1- val))) |
| 3172 | |
| 3173 | ;; positioning is done twice: before and after command execution |
| 3174 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) |
| 3175 | (back-to-indentation) |
| 3176 | |
| 3177 | (if com (viper-execute-com 'viper-goto-line val com)) |
| 3178 | |
| 3179 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) |
| 3180 | (back-to-indentation) |
| 3181 | )) |
| 3182 | |
| 3183 | ;; Find ARG's occurrence of CHAR on the current line. |
| 3184 | ;; If FORWARD then search is forward, otherwise backward. OFFSET is used to |
| 3185 | ;; adjust point after search. |
| 3186 | (defun viper-find-char (arg char forward offset) |
| 3187 | (or (char-or-string-p char) (error "Viper bell")) |
| 3188 | (let ((arg (if forward arg (- arg))) |
| 3189 | (cmd (if (eq viper-intermediate-command 'viper-repeat) |
| 3190 | (nth 5 viper-d-com) |
| 3191 | (viper-array-to-string (this-command-keys)))) |
| 3192 | point region-beg region-end) |
| 3193 | (save-excursion |
| 3194 | (save-restriction |
| 3195 | (if (> arg 0) ; forward |
| 3196 | (progn |
| 3197 | (setq region-beg (point)) |
| 3198 | (if viper-allow-multiline-replace-regions |
| 3199 | (viper-forward-paragraph 1) |
| 3200 | (end-of-line)) |
| 3201 | (setq region-end (point))) |
| 3202 | (setq region-end (point)) |
| 3203 | (if viper-allow-multiline-replace-regions |
| 3204 | (viper-backward-paragraph 1) |
| 3205 | (beginning-of-line)) |
| 3206 | (setq region-beg (point))) |
| 3207 | (if (or (and (< arg 0) |
| 3208 | (< (- region-end region-beg) |
| 3209 | (if viper-allow-multiline-replace-regions |
| 3210 | 2 1)) |
| 3211 | (bolp)) |
| 3212 | (and (> arg 0) |
| 3213 | (< (- region-end region-beg) |
| 3214 | (if viper-allow-multiline-replace-regions |
| 3215 | 3 2)) |
| 3216 | (eolp))) |
| 3217 | (error "Command `%s': At %s of %s" |
| 3218 | cmd |
| 3219 | (if (> arg 0) "end" "beginning") |
| 3220 | (if viper-allow-multiline-replace-regions |
| 3221 | "paragraph" "line"))) |
| 3222 | (narrow-to-region region-beg region-end) |
| 3223 | ;; if arg > 0, point is forwarded before search. |
| 3224 | (if (> arg 0) (goto-char (1+ (point-min))) |
| 3225 | (goto-char (point-max))) |
| 3226 | (if (let ((case-fold-search nil)) |
| 3227 | (search-forward (char-to-string char) nil 0 arg)) |
| 3228 | (setq point (point)) |
| 3229 | (error "Command `%s': `%c' not found" cmd char)))) |
| 3230 | (goto-char point) |
| 3231 | (if (> arg 0) |
| 3232 | (backward-char (if offset 2 1)) |
| 3233 | (forward-char (if offset 1 0))))) |
| 3234 | |
| 3235 | (defun viper-find-char-forward (arg) |
| 3236 | "Find char on the line. |
| 3237 | If called interactively read the char to find from the terminal, and if |
| 3238 | called from viper-repeat, the char last used is used. This behavior is |
| 3239 | controlled by the sign of prefix numeric value." |
| 3240 | (interactive "P") |
| 3241 | (let ((val (viper-p-val arg)) |
| 3242 | (com (viper-getcom arg)) |
| 3243 | (cmd-representation (nth 5 viper-d-com))) |
| 3244 | (if (> val 0) |
| 3245 | ;; this means that the function was called interactively |
| 3246 | (setq viper-f-char (read-char) |
| 3247 | viper-f-forward t |
| 3248 | viper-f-offset nil) |
| 3249 | ;; viper-repeat --- set viper-F-char from command-keys |
| 3250 | (setq viper-F-char (if (stringp cmd-representation) |
| 3251 | (viper-seq-last-elt cmd-representation) |
| 3252 | viper-F-char) |
| 3253 | viper-f-char viper-F-char) |
| 3254 | (setq val (- val))) |
| 3255 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3256 | (viper-find-char |
| 3257 | val (if (> (viper-p-val arg) 0) viper-f-char viper-F-char) t nil) |
| 3258 | (setq val (- val)) |
| 3259 | (if com |
| 3260 | (progn |
| 3261 | (setq viper-F-char viper-f-char) ; set new viper-F-char |
| 3262 | (forward-char) |
| 3263 | (viper-execute-com 'viper-find-char-forward val com))))) |
| 3264 | |
| 3265 | (defun viper-goto-char-forward (arg) |
| 3266 | "Go up to char ARG forward on line." |
| 3267 | (interactive "P") |
| 3268 | (let ((val (viper-p-val arg)) |
| 3269 | (com (viper-getcom arg)) |
| 3270 | (cmd-representation (nth 5 viper-d-com))) |
| 3271 | (if (> val 0) |
| 3272 | ;; this means that the function was called interactively |
| 3273 | (setq viper-f-char (read-char) |
| 3274 | viper-f-forward t |
| 3275 | viper-f-offset t) |
| 3276 | ;; viper-repeat --- set viper-F-char from command-keys |
| 3277 | (setq viper-F-char (if (stringp cmd-representation) |
| 3278 | (viper-seq-last-elt cmd-representation) |
| 3279 | viper-F-char) |
| 3280 | viper-f-char viper-F-char) |
| 3281 | (setq val (- val))) |
| 3282 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3283 | (viper-find-char |
| 3284 | val (if (> (viper-p-val arg) 0) viper-f-char viper-F-char) t t) |
| 3285 | (setq val (- val)) |
| 3286 | (if com |
| 3287 | (progn |
| 3288 | (setq viper-F-char viper-f-char) ; set new viper-F-char |
| 3289 | (forward-char) |
| 3290 | (viper-execute-com 'viper-goto-char-forward val com))))) |
| 3291 | |
| 3292 | (defun viper-find-char-backward (arg) |
| 3293 | "Find char ARG on line backward." |
| 3294 | (interactive "P") |
| 3295 | (let ((val (viper-p-val arg)) |
| 3296 | (com (viper-getcom arg)) |
| 3297 | (cmd-representation (nth 5 viper-d-com))) |
| 3298 | (if (> val 0) |
| 3299 | ;; this means that the function was called interactively |
| 3300 | (setq viper-f-char (read-char) |
| 3301 | viper-f-forward nil |
| 3302 | viper-f-offset nil) |
| 3303 | ;; viper-repeat --- set viper-F-char from command-keys |
| 3304 | (setq viper-F-char (if (stringp cmd-representation) |
| 3305 | (viper-seq-last-elt cmd-representation) |
| 3306 | viper-F-char) |
| 3307 | viper-f-char viper-F-char) |
| 3308 | (setq val (- val))) |
| 3309 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3310 | (viper-find-char |
| 3311 | val (if (> (viper-p-val arg) 0) viper-f-char viper-F-char) nil nil) |
| 3312 | (setq val (- val)) |
| 3313 | (if com |
| 3314 | (progn |
| 3315 | (setq viper-F-char viper-f-char) ; set new viper-F-char |
| 3316 | (viper-execute-com 'viper-find-char-backward val com))))) |
| 3317 | |
| 3318 | (defun viper-goto-char-backward (arg) |
| 3319 | "Go up to char ARG backward on line." |
| 3320 | (interactive "P") |
| 3321 | (let ((val (viper-p-val arg)) |
| 3322 | (com (viper-getcom arg)) |
| 3323 | (cmd-representation (nth 5 viper-d-com))) |
| 3324 | (if (> val 0) |
| 3325 | ;; this means that the function was called interactively |
| 3326 | (setq viper-f-char (read-char) |
| 3327 | viper-f-forward nil |
| 3328 | viper-f-offset t) |
| 3329 | ;; viper-repeat --- set viper-F-char from command-keys |
| 3330 | (setq viper-F-char (if (stringp cmd-representation) |
| 3331 | (viper-seq-last-elt cmd-representation) |
| 3332 | viper-F-char) |
| 3333 | viper-f-char viper-F-char) |
| 3334 | (setq val (- val))) |
| 3335 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3336 | (viper-find-char |
| 3337 | val (if (> (viper-p-val arg) 0) viper-f-char viper-F-char) nil t) |
| 3338 | (setq val (- val)) |
| 3339 | (if com |
| 3340 | (progn |
| 3341 | (setq viper-F-char viper-f-char) ; set new viper-F-char |
| 3342 | (viper-execute-com 'viper-goto-char-backward val com))))) |
| 3343 | |
| 3344 | (defun viper-repeat-find (arg) |
| 3345 | "Repeat previous find command." |
| 3346 | (interactive "P") |
| 3347 | (let ((val (viper-p-val arg)) |
| 3348 | (com (viper-getcom arg))) |
| 3349 | (viper-deactivate-mark) |
| 3350 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3351 | (viper-find-char val viper-f-char viper-f-forward viper-f-offset) |
| 3352 | (if com |
| 3353 | (progn |
| 3354 | (if viper-f-forward (forward-char)) |
| 3355 | (viper-execute-com 'viper-repeat-find val com))))) |
| 3356 | |
| 3357 | (defun viper-repeat-find-opposite (arg) |
| 3358 | "Repeat previous find command in the opposite direction." |
| 3359 | (interactive "P") |
| 3360 | (let ((val (viper-p-val arg)) |
| 3361 | (com (viper-getcom arg))) |
| 3362 | (viper-deactivate-mark) |
| 3363 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3364 | (viper-find-char val viper-f-char (not viper-f-forward) viper-f-offset) |
| 3365 | (if com |
| 3366 | (progn |
| 3367 | (if viper-f-forward (forward-char)) |
| 3368 | (viper-execute-com 'viper-repeat-find-opposite val com))))) |
| 3369 | |
| 3370 | \f |
| 3371 | ;; window scrolling etc. |
| 3372 | |
| 3373 | (defun viper-window-top (arg) |
| 3374 | "Go to home window line." |
| 3375 | (interactive "P") |
| 3376 | (let ((val (viper-p-val arg)) |
| 3377 | (com (viper-getCom arg))) |
| 3378 | (viper-leave-region-active) |
| 3379 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3380 | (push-mark nil t) |
| 3381 | (move-to-window-line (1- val)) |
| 3382 | |
| 3383 | ;; positioning is done twice: before and after command execution |
| 3384 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) |
| 3385 | (back-to-indentation) |
| 3386 | |
| 3387 | (if com (viper-execute-com 'viper-window-top val com)) |
| 3388 | |
| 3389 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) |
| 3390 | (back-to-indentation) |
| 3391 | )) |
| 3392 | |
| 3393 | (defun viper-window-middle (arg) |
| 3394 | "Go to middle window line." |
| 3395 | (interactive "P") |
| 3396 | (let ((val (viper-p-val arg)) |
| 3397 | (com (viper-getCom arg))) |
| 3398 | (viper-leave-region-active) |
| 3399 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3400 | (push-mark nil t) |
| 3401 | (move-to-window-line (+ (/ (1- (window-height)) 2) (1- val))) |
| 3402 | |
| 3403 | ;; positioning is done twice: before and after command execution |
| 3404 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) |
| 3405 | (back-to-indentation) |
| 3406 | |
| 3407 | (if com (viper-execute-com 'viper-window-middle val com)) |
| 3408 | |
| 3409 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) |
| 3410 | (back-to-indentation) |
| 3411 | )) |
| 3412 | |
| 3413 | (defun viper-window-bottom (arg) |
| 3414 | "Go to last window line." |
| 3415 | (interactive "P") |
| 3416 | (let ((val (viper-p-val arg)) |
| 3417 | (com (viper-getCom arg))) |
| 3418 | (viper-leave-region-active) |
| 3419 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3420 | (push-mark nil t) |
| 3421 | (move-to-window-line (- val)) |
| 3422 | |
| 3423 | ;; positioning is done twice: before and after command execution |
| 3424 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) |
| 3425 | (back-to-indentation) |
| 3426 | |
| 3427 | (if com (viper-execute-com 'viper-window-bottom val com)) |
| 3428 | |
| 3429 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) |
| 3430 | (back-to-indentation) |
| 3431 | )) |
| 3432 | |
| 3433 | (defun viper-line-to-top (arg) |
| 3434 | "Put current line on the home line." |
| 3435 | (interactive "p") |
| 3436 | (recenter (1- arg))) |
| 3437 | |
| 3438 | (defun viper-line-to-middle (arg) |
| 3439 | "Put current line on the middle line." |
| 3440 | (interactive "p") |
| 3441 | (recenter (+ (1- arg) (/ (1- (window-height)) 2)))) |
| 3442 | |
| 3443 | (defun viper-line-to-bottom (arg) |
| 3444 | "Put current line on the last line." |
| 3445 | (interactive "p") |
| 3446 | (recenter (- (window-height) (1+ arg)))) |
| 3447 | |
| 3448 | ;; If point is within viper-search-scroll-threshold of window top or bottom, |
| 3449 | ;; scroll up or down 1/7 of window height, depending on whether we are at the |
| 3450 | ;; bottom or at the top of the window. This function is called by viper-search |
| 3451 | ;; (which is called from viper-search-forward/backward/next). If the value of |
| 3452 | ;; viper-search-scroll-threshold is negative - don't scroll. |
| 3453 | (defun viper-adjust-window () |
| 3454 | (let ((win-height (if (featurep 'xemacs) |
| 3455 | (window-displayed-height) |
| 3456 | (1- (window-height)))) ; adjust for modeline |
| 3457 | (pt (point)) |
| 3458 | at-top-p at-bottom-p |
| 3459 | min-scroll direction) |
| 3460 | (save-excursion |
| 3461 | (move-to-window-line 0) ; top |
| 3462 | (setq at-top-p |
| 3463 | (<= (count-lines pt (point)) |
| 3464 | viper-search-scroll-threshold)) |
| 3465 | (move-to-window-line -1) ; bottom |
| 3466 | (setq at-bottom-p |
| 3467 | (<= (count-lines pt (point)) viper-search-scroll-threshold))) |
| 3468 | (cond (at-top-p (setq min-scroll (1- viper-search-scroll-threshold) |
| 3469 | direction 1)) |
| 3470 | (at-bottom-p (setq min-scroll (1+ viper-search-scroll-threshold) |
| 3471 | direction -1))) |
| 3472 | (if min-scroll |
| 3473 | (recenter |
| 3474 | (* (max min-scroll (/ win-height 7)) direction))) |
| 3475 | )) |
| 3476 | |
| 3477 | \f |
| 3478 | ;; paren match |
| 3479 | ;; must correct this to only match ( to ) etc. On the other hand |
| 3480 | ;; it is good that paren match gets confused, because that way you |
| 3481 | ;; catch _all_ imbalances. |
| 3482 | |
| 3483 | (defun viper-paren-match (arg) |
| 3484 | "Go to the matching parenthesis." |
| 3485 | (interactive "P") |
| 3486 | (viper-leave-region-active) |
| 3487 | (let ((com (viper-getcom arg)) |
| 3488 | (parse-sexp-ignore-comments viper-parse-sexp-ignore-comments) |
| 3489 | anchor-point) |
| 3490 | (if (integerp arg) |
| 3491 | (if (or (> arg 99) (< arg 1)) |
| 3492 | (error "Prefix must be between 1 and 99") |
| 3493 | (goto-char |
| 3494 | (if (> (point-max) 80000) |
| 3495 | (* (/ (point-max) 100) arg) |
| 3496 | (/ (* (point-max) arg) 100))) |
| 3497 | (back-to-indentation)) |
| 3498 | (let (beg-lim end-lim) |
| 3499 | (if (and (eolp) (not (bolp))) (forward-char -1)) |
| 3500 | (if (not (looking-at "[][(){}]")) |
| 3501 | (setq anchor-point (point))) |
| 3502 | (setq beg-lim (point-at-bol) |
| 3503 | end-lim (point-at-eol)) |
| 3504 | (cond ((re-search-forward "[][(){}]" end-lim t) |
| 3505 | (backward-char) ) |
| 3506 | ((re-search-backward "[][(){}]" beg-lim t)) |
| 3507 | (t |
| 3508 | (error "No matching character on line")))) |
| 3509 | (cond ((looking-at "[\(\[{]") |
| 3510 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3511 | (forward-sexp 1) |
| 3512 | (if com |
| 3513 | (viper-execute-com 'viper-paren-match nil com) |
| 3514 | (backward-char))) |
| 3515 | (anchor-point |
| 3516 | (if com |
| 3517 | (progn |
| 3518 | (viper-move-marker-locally 'viper-com-point anchor-point) |
| 3519 | (forward-char 1) |
| 3520 | (viper-execute-com 'viper-paren-match nil com) |
| 3521 | ))) |
| 3522 | ((looking-at "[])}]") |
| 3523 | (forward-char) |
| 3524 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3525 | (backward-sexp 1) |
| 3526 | (if com (viper-execute-com 'viper-paren-match nil com))) |
| 3527 | (t (error "Viper bell")))))) |
| 3528 | |
| 3529 | (defun viper-toggle-parse-sexp-ignore-comments () |
| 3530 | (interactive) |
| 3531 | (setq viper-parse-sexp-ignore-comments |
| 3532 | (not viper-parse-sexp-ignore-comments)) |
| 3533 | (princ (format |
| 3534 | "From now on, `%%' will %signore parentheses inside comment fields" |
| 3535 | (if viper-parse-sexp-ignore-comments "" "NOT ")))) |
| 3536 | |
| 3537 | \f |
| 3538 | ;; sentence, paragraph and heading |
| 3539 | |
| 3540 | (defun viper-forward-sentence (arg) |
| 3541 | "Forward sentence." |
| 3542 | (interactive "P") |
| 3543 | (or (eq last-command this-command) |
| 3544 | (push-mark nil t)) |
| 3545 | (let ((val (viper-p-val arg)) |
| 3546 | (com (viper-getcom arg))) |
| 3547 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3548 | (forward-sentence val) |
| 3549 | (if com (viper-execute-com 'viper-forward-sentence nil com)))) |
| 3550 | |
| 3551 | (defun viper-backward-sentence (arg) |
| 3552 | "Backward sentence." |
| 3553 | (interactive "P") |
| 3554 | (or (eq last-command this-command) |
| 3555 | (push-mark nil t)) |
| 3556 | (let ((val (viper-p-val arg)) |
| 3557 | (com (viper-getcom arg))) |
| 3558 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3559 | (backward-sentence val) |
| 3560 | (if com (viper-execute-com 'viper-backward-sentence nil com)))) |
| 3561 | |
| 3562 | (defun viper-forward-paragraph (arg) |
| 3563 | "Forward paragraph." |
| 3564 | (interactive "P") |
| 3565 | (or (eq last-command this-command) |
| 3566 | (push-mark nil t)) |
| 3567 | (let ((val (viper-p-val arg)) |
| 3568 | ;; if you want d} operate on whole lines, change viper-getcom to |
| 3569 | ;; viper-getCom below |
| 3570 | (com (viper-getcom arg))) |
| 3571 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3572 | (forward-paragraph val) |
| 3573 | (if com |
| 3574 | (progn |
| 3575 | (backward-char 1) |
| 3576 | (viper-execute-com 'viper-forward-paragraph nil com))))) |
| 3577 | |
| 3578 | (defun viper-backward-paragraph (arg) |
| 3579 | "Backward paragraph." |
| 3580 | (interactive "P") |
| 3581 | (or (eq last-command this-command) |
| 3582 | (push-mark nil t)) |
| 3583 | (let ((val (viper-p-val arg)) |
| 3584 | ;; if you want d{ operate on whole lines, change viper-getcom to |
| 3585 | ;; viper-getCom below |
| 3586 | (com (viper-getcom arg))) |
| 3587 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3588 | (backward-paragraph val) |
| 3589 | (if com |
| 3590 | (progn |
| 3591 | (forward-char 1) |
| 3592 | (viper-execute-com 'viper-backward-paragraph nil com) |
| 3593 | (backward-char 1))))) |
| 3594 | |
| 3595 | ;; should be mode-specific |
| 3596 | (defun viper-prev-heading (arg) |
| 3597 | (interactive "P") |
| 3598 | (let ((val (viper-p-val arg)) |
| 3599 | (com (viper-getCom arg))) |
| 3600 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3601 | (re-search-backward viper-heading-start nil t val) |
| 3602 | (goto-char (match-beginning 0)) |
| 3603 | (if com (viper-execute-com 'viper-prev-heading nil com)))) |
| 3604 | |
| 3605 | (defun viper-heading-end (arg) |
| 3606 | (interactive "P") |
| 3607 | (let ((val (viper-p-val arg)) |
| 3608 | (com (viper-getCom arg))) |
| 3609 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3610 | (re-search-forward viper-heading-end nil t val) |
| 3611 | (goto-char (match-beginning 0)) |
| 3612 | (if com (viper-execute-com 'viper-heading-end nil com)))) |
| 3613 | |
| 3614 | (defun viper-next-heading (arg) |
| 3615 | (interactive "P") |
| 3616 | (let ((val (viper-p-val arg)) |
| 3617 | (com (viper-getCom arg))) |
| 3618 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 3619 | (end-of-line) |
| 3620 | (re-search-forward viper-heading-start nil t val) |
| 3621 | (goto-char (match-beginning 0)) |
| 3622 | (if com (viper-execute-com 'viper-next-heading nil com)))) |
| 3623 | |
| 3624 | \f |
| 3625 | ;; scrolling |
| 3626 | |
| 3627 | (defun viper-scroll-screen (arg) |
| 3628 | "Scroll to next screen." |
| 3629 | (interactive "p") |
| 3630 | (condition-case nil |
| 3631 | (if (> arg 0) |
| 3632 | (while (> arg 0) |
| 3633 | (scroll-up) |
| 3634 | (setq arg (1- arg))) |
| 3635 | (while (> 0 arg) |
| 3636 | (scroll-down) |
| 3637 | (setq arg (1+ arg)))) |
| 3638 | (error (beep 1) |
| 3639 | (if (> arg 0) |
| 3640 | (progn |
| 3641 | (message "End of buffer") |
| 3642 | (goto-char (point-max))) |
| 3643 | (message "Beginning of buffer") |
| 3644 | (goto-char (point-min)))) |
| 3645 | )) |
| 3646 | |
| 3647 | (defun viper-scroll-screen-back (arg) |
| 3648 | "Scroll to previous screen." |
| 3649 | (interactive "p") |
| 3650 | (viper-scroll-screen (- arg))) |
| 3651 | |
| 3652 | (defun viper-scroll-down (arg) |
| 3653 | "Pull down half screen." |
| 3654 | (interactive "P") |
| 3655 | (condition-case nil |
| 3656 | (if (null arg) |
| 3657 | (scroll-down (/ (window-height) 2)) |
| 3658 | (scroll-down arg)) |
| 3659 | (error (beep 1) |
| 3660 | (message "Beginning of buffer") |
| 3661 | (goto-char (point-min))))) |
| 3662 | |
| 3663 | (defun viper-scroll-down-one (arg) |
| 3664 | "Scroll up one line." |
| 3665 | (interactive "p") |
| 3666 | (scroll-down arg)) |
| 3667 | |
| 3668 | (defun viper-scroll-up (arg) |
| 3669 | "Pull up half screen." |
| 3670 | (interactive "P") |
| 3671 | (condition-case nil |
| 3672 | (if (null arg) |
| 3673 | (scroll-up (/ (window-height) 2)) |
| 3674 | (scroll-up arg)) |
| 3675 | (error (beep 1) |
| 3676 | (message "End of buffer") |
| 3677 | (goto-char (point-max))))) |
| 3678 | |
| 3679 | (defun viper-scroll-up-one (arg) |
| 3680 | "Scroll down one line." |
| 3681 | (interactive "p") |
| 3682 | (scroll-up arg)) |
| 3683 | |
| 3684 | \f |
| 3685 | ;; searching |
| 3686 | |
| 3687 | (defun viper-insert-isearch-string () |
| 3688 | "Insert `isearch' last search string." |
| 3689 | (interactive) |
| 3690 | (when isearch-string (insert isearch-string))) |
| 3691 | |
| 3692 | (defun viper-if-string (prompt) |
| 3693 | (if (memq viper-intermediate-command |
| 3694 | '(viper-command-argument viper-digit-argument viper-repeat)) |
| 3695 | (setq viper-this-command-keys (this-command-keys))) |
| 3696 | (let* ((keymap (let ((keymap (copy-keymap minibuffer-local-map))) |
| 3697 | (define-key keymap [(control ?s)] 'viper-insert-isearch-string) |
| 3698 | keymap)) |
| 3699 | (s (viper-read-string-with-history |
| 3700 | prompt |
| 3701 | nil ; no initial |
| 3702 | 'viper-search-history |
| 3703 | (car viper-search-history) |
| 3704 | keymap))) |
| 3705 | (if (not (string= s "")) |
| 3706 | (setq viper-s-string s)))) |
| 3707 | |
| 3708 | |
| 3709 | (defun viper-toggle-search-style (arg) |
| 3710 | "Toggle the value of viper-case-fold-search/viper-re-search. |
| 3711 | Without prefix argument, will ask which search style to toggle. With prefix |
| 3712 | arg 1, toggles viper-case-fold-search; with arg 2 toggles viper-re-search. |
| 3713 | |
| 3714 | Although this function is bound to \\[viper-toggle-search-style], the most |
| 3715 | convenient way to use it is to bind `//' to the macro |
| 3716 | `1 M-x viper-toggle-search-style' and `///' to |
| 3717 | `2 M-x viper-toggle-search-style'. In this way, hitting `//' quickly will |
| 3718 | toggle case-fold-search and hitting `/' three times with toggle regexp |
| 3719 | search. Macros are more convenient in this case because they don't affect |
| 3720 | the Emacs binding of `/'." |
| 3721 | (interactive "P") |
| 3722 | (let (msg) |
| 3723 | (cond ((or (eq arg 1) |
| 3724 | (and (null arg) |
| 3725 | (y-or-n-p (format "Search style: '%s'. Want '%s'? " |
| 3726 | (if viper-case-fold-search |
| 3727 | "case-insensitive" "case-sensitive") |
| 3728 | (if viper-case-fold-search |
| 3729 | "case-sensitive" |
| 3730 | "case-insensitive"))))) |
| 3731 | (setq viper-case-fold-search (null viper-case-fold-search)) |
| 3732 | (if viper-case-fold-search |
| 3733 | (setq msg "Search becomes case-insensitive") |
| 3734 | (setq msg "Search becomes case-sensitive"))) |
| 3735 | ((or (eq arg 2) |
| 3736 | (and (null arg) |
| 3737 | (y-or-n-p (format "Search style: '%s'. Want '%s'? " |
| 3738 | (if viper-re-search |
| 3739 | "regexp-search" "vanilla-search") |
| 3740 | (if viper-re-search |
| 3741 | "vanilla-search" |
| 3742 | "regexp-search"))))) |
| 3743 | (setq viper-re-search (null viper-re-search)) |
| 3744 | (if viper-re-search |
| 3745 | (setq msg "Search becomes regexp-style") |
| 3746 | (setq msg "Search becomes vanilla-style"))) |
| 3747 | (t |
| 3748 | (setq msg "Search style remains unchanged"))) |
| 3749 | (princ msg t))) |
| 3750 | |
| 3751 | (defun viper-set-searchstyle-toggling-macros (unset &optional major-mode) |
| 3752 | "Set the macros for toggling the search style in Viper's vi-state. |
| 3753 | The macro that toggles case sensitivity is bound to `//', and the one that |
| 3754 | toggles regexp search is bound to `///'. |
| 3755 | With a prefix argument, this function unsets the macros. |
| 3756 | If MAJOR-MODE is set, set the macros only in that major mode." |
| 3757 | (interactive "P") |
| 3758 | (let (scope) |
| 3759 | (if (and major-mode (symbolp major-mode)) |
| 3760 | (setq scope major-mode) |
| 3761 | (setq scope 't)) |
| 3762 | (or noninteractive |
| 3763 | (if (not unset) |
| 3764 | (progn |
| 3765 | ;; toggle case sensitivity in search |
| 3766 | (viper-record-kbd-macro |
| 3767 | "//" 'vi-state |
| 3768 | [1 (meta x) v i p e r - t o g g l e - s e a r c h - s t y l e return] |
| 3769 | scope) |
| 3770 | ;; toggle regexp/vanilla search |
| 3771 | (viper-record-kbd-macro |
| 3772 | "///" 'vi-state |
| 3773 | [2 (meta x) v i p e r - t o g g l e - s e a r c h - s t y l e return] |
| 3774 | scope) |
| 3775 | ;; XEmacs has no called-interactively-p |
| 3776 | ;; (if (called-interactively-p 'interactive) |
| 3777 | (if (interactive-p) |
| 3778 | (message |
| 3779 | "// and /// now toggle case-sensitivity and regexp search"))) |
| 3780 | (viper-unrecord-kbd-macro "//" 'vi-state) |
| 3781 | (sit-for 2) |
| 3782 | (viper-unrecord-kbd-macro "///" 'vi-state))) |
| 3783 | )) |
| 3784 | |
| 3785 | |
| 3786 | (defun viper-set-parsing-style-toggling-macro (unset) |
| 3787 | "Set `%%%' to be a macro that toggles whether comment fields should be parsed for matching parentheses. |
| 3788 | This is used in conjunction with the `%' command. |
| 3789 | |
| 3790 | With a prefix argument, unsets the macro." |
| 3791 | (interactive "P") |
| 3792 | (or noninteractive |
| 3793 | (if (not unset) |
| 3794 | (progn |
| 3795 | ;; Make %%% toggle parsing comments for matching parentheses |
| 3796 | (viper-record-kbd-macro |
| 3797 | "%%%" 'vi-state |
| 3798 | [(meta x) v i p e r - t o g g l e - p a r s e - s e x p - i g n o r e - c o m m e n t s return] |
| 3799 | 't) |
| 3800 | ;; XEmacs has no called-interactively-p. And interactive-p |
| 3801 | ;; works fine here. |
| 3802 | ;; (if (called-interactively-p 'interactive) |
| 3803 | (if (interactive-p) |
| 3804 | (message |
| 3805 | "%%%%%% now toggles whether comments should be parsed for matching parentheses"))) |
| 3806 | (viper-unrecord-kbd-macro "%%%" 'vi-state)))) |
| 3807 | |
| 3808 | |
| 3809 | (defun viper-set-emacs-state-searchstyle-macros (unset &optional arg-majormode) |
| 3810 | "Set the macros for toggling the search style in Viper's emacs-state. |
| 3811 | The macro that toggles case sensitivity is bound to `//', and the one that |
| 3812 | toggles regexp search is bound to `///'. |
| 3813 | With a prefix argument, this function unsets the macros. |
| 3814 | If the optional prefix argument is non-nil and specifies a valid major mode, |
| 3815 | this sets the macros only in the macros in that major mode. Otherwise, |
| 3816 | the macros are set in the current major mode. |
| 3817 | \(When unsetting the macros, the second argument has no effect.\)" |
| 3818 | (interactive "P") |
| 3819 | (or noninteractive |
| 3820 | (if (not unset) |
| 3821 | (progn |
| 3822 | ;; toggle case sensitivity in search |
| 3823 | (viper-record-kbd-macro |
| 3824 | "//" 'emacs-state |
| 3825 | [1 (meta x) v i p e r - t o g g l e - s e a r c h - s t y l e return] |
| 3826 | (or arg-majormode major-mode)) |
| 3827 | ;; toggle regexp/vanilla search |
| 3828 | (viper-record-kbd-macro |
| 3829 | "///" 'emacs-state |
| 3830 | [2 (meta x) v i p e r - t o g g l e - s e a r c h - s t y l e return] |
| 3831 | (or arg-majormode major-mode)) |
| 3832 | ;; called-interactively-p does not work for |
| 3833 | ;; XEmacs. interactive-p is ok here. |
| 3834 | ;; (if (called-interactively-p 'interactive) |
| 3835 | (if (interactive-p) |
| 3836 | (message |
| 3837 | "// and /// now toggle case-sensitivity and regexp search."))) |
| 3838 | (viper-unrecord-kbd-macro "//" 'emacs-state) |
| 3839 | (sit-for 2) |
| 3840 | (viper-unrecord-kbd-macro "///" 'emacs-state)))) |
| 3841 | |
| 3842 | |
| 3843 | (defun viper-search-forward (arg) |
| 3844 | "Search a string forward. |
| 3845 | ARG is used to find the ARG's occurrence of the string. |
| 3846 | Null string will repeat previous search." |
| 3847 | (interactive "P") |
| 3848 | (let ((val (viper-P-val arg)) |
| 3849 | (com (viper-getcom arg)) |
| 3850 | (old-str viper-s-string) |
| 3851 | debug-on-error) |
| 3852 | (setq viper-s-forward t) |
| 3853 | (viper-if-string "/") |
| 3854 | ;; this is not used at present, but may be used later |
| 3855 | (if (or (not (equal old-str viper-s-string)) |
| 3856 | (not (markerp viper-local-search-start-marker)) |
| 3857 | (not (marker-buffer viper-local-search-start-marker))) |
| 3858 | (setq viper-local-search-start-marker (point-marker))) |
| 3859 | (viper-search viper-s-string t val) |
| 3860 | (if com |
| 3861 | (progn |
| 3862 | (viper-move-marker-locally 'viper-com-point (mark t)) |
| 3863 | (viper-execute-com 'viper-search-next val com))) |
| 3864 | )) |
| 3865 | |
| 3866 | (defun viper-search-backward (arg) |
| 3867 | "Search a string backward. |
| 3868 | ARG is used to find the ARG's occurrence of the string. |
| 3869 | Null string will repeat previous search." |
| 3870 | (interactive "P") |
| 3871 | (let ((val (viper-P-val arg)) |
| 3872 | (com (viper-getcom arg)) |
| 3873 | (old-str viper-s-string) |
| 3874 | debug-on-error) |
| 3875 | (setq viper-s-forward nil) |
| 3876 | (viper-if-string "?") |
| 3877 | ;; this is not used at present, but may be used later |
| 3878 | (if (or (not (equal old-str viper-s-string)) |
| 3879 | (not (markerp viper-local-search-start-marker)) |
| 3880 | (not (marker-buffer viper-local-search-start-marker))) |
| 3881 | (setq viper-local-search-start-marker (point-marker))) |
| 3882 | (viper-search viper-s-string nil val) |
| 3883 | (if com |
| 3884 | (progn |
| 3885 | (viper-move-marker-locally 'viper-com-point (mark t)) |
| 3886 | (viper-execute-com 'viper-search-next val com))))) |
| 3887 | |
| 3888 | |
| 3889 | ;; Search for COUNT's occurrence of STRING. |
| 3890 | ;; Search is forward if FORWARD is non-nil, otherwise backward. |
| 3891 | ;; INIT-POINT is the position where search is to start. |
| 3892 | ;; Arguments: |
| 3893 | ;; (STRING FORW COUNT &optional NO-OFFSET INIT-POINT LIMIT FAIL-IF-NOT-FOUND) |
| 3894 | (defun viper-search (string forward arg |
| 3895 | &optional no-offset init-point fail-if-not-found) |
| 3896 | (if (not (equal string "")) |
| 3897 | (let ((val (viper-p-val arg)) |
| 3898 | (com (viper-getcom arg)) |
| 3899 | (offset (not no-offset)) |
| 3900 | (case-fold-search viper-case-fold-search) |
| 3901 | (start-point (or init-point (point)))) |
| 3902 | (viper-deactivate-mark) |
| 3903 | (if forward |
| 3904 | (condition-case nil |
| 3905 | (progn |
| 3906 | (if offset (viper-forward-char-carefully)) |
| 3907 | (if viper-re-search |
| 3908 | (progn |
| 3909 | (re-search-forward string nil nil val) |
| 3910 | (re-search-backward string)) |
| 3911 | (search-forward string nil nil val) |
| 3912 | (search-backward string)) |
| 3913 | (if (not (equal start-point (point))) |
| 3914 | (push-mark start-point t))) |
| 3915 | (search-failed |
| 3916 | (if (and (not fail-if-not-found) viper-search-wrap-around) |
| 3917 | (progn |
| 3918 | (message "Search wrapped around BOTTOM of buffer") |
| 3919 | (goto-char (point-min)) |
| 3920 | (viper-search string forward (cons 1 com) t start-point 'fail) |
| 3921 | ;; don't wait in macros |
| 3922 | (or executing-kbd-macro |
| 3923 | (memq viper-intermediate-command |
| 3924 | '(viper-repeat |
| 3925 | viper-digit-argument |
| 3926 | viper-command-argument)) |
| 3927 | (sit-for 2)) |
| 3928 | ;; delete the wrap-around message |
| 3929 | (message "") |
| 3930 | ) |
| 3931 | (goto-char start-point) |
| 3932 | (error "`%s': %s not found" |
| 3933 | string |
| 3934 | (if viper-re-search "Pattern" "String")) |
| 3935 | ))) |
| 3936 | ;; backward |
| 3937 | (condition-case nil |
| 3938 | (progn |
| 3939 | (if viper-re-search |
| 3940 | (re-search-backward string nil nil val) |
| 3941 | (search-backward string nil nil val)) |
| 3942 | (if (not (equal start-point (point))) |
| 3943 | (push-mark start-point t))) |
| 3944 | (search-failed |
| 3945 | (if (and (not fail-if-not-found) viper-search-wrap-around) |
| 3946 | (progn |
| 3947 | (message "Search wrapped around TOP of buffer") |
| 3948 | (goto-char (point-max)) |
| 3949 | (viper-search string forward (cons 1 com) t start-point 'fail) |
| 3950 | ;; don't wait in macros |
| 3951 | (or executing-kbd-macro |
| 3952 | (memq viper-intermediate-command |
| 3953 | '(viper-repeat |
| 3954 | viper-digit-argument |
| 3955 | viper-command-argument)) |
| 3956 | (sit-for 2)) |
| 3957 | ;; delete the wrap-around message |
| 3958 | (message "") |
| 3959 | ) |
| 3960 | (goto-char start-point) |
| 3961 | (error "`%s': %s not found" |
| 3962 | string |
| 3963 | (if viper-re-search "Pattern" "String")) |
| 3964 | )))) |
| 3965 | ;; pull up or down if at top/bottom of window |
| 3966 | (viper-adjust-window) |
| 3967 | ;; highlight the result of search |
| 3968 | ;; don't wait and don't highlight in macros |
| 3969 | (or executing-kbd-macro |
| 3970 | (memq viper-intermediate-command |
| 3971 | '(viper-repeat viper-digit-argument viper-command-argument)) |
| 3972 | (viper-flash-search-pattern)) |
| 3973 | ))) |
| 3974 | |
| 3975 | (defun viper-search-next (arg) |
| 3976 | "Repeat previous search." |
| 3977 | (interactive "P") |
| 3978 | (let ((val (viper-p-val arg)) |
| 3979 | (com (viper-getcom arg)) |
| 3980 | debug-on-error) |
| 3981 | (if (or (null viper-s-string) (string= viper-s-string "")) |
| 3982 | (error viper-NoPrevSearch)) |
| 3983 | (viper-search viper-s-string viper-s-forward arg) |
| 3984 | (if com |
| 3985 | (progn |
| 3986 | (viper-move-marker-locally 'viper-com-point (mark t)) |
| 3987 | (viper-execute-com 'viper-search-next val com))))) |
| 3988 | |
| 3989 | (defun viper-search-Next (arg) |
| 3990 | "Repeat previous search in the reverse direction." |
| 3991 | (interactive "P") |
| 3992 | (let ((val (viper-p-val arg)) |
| 3993 | (com (viper-getcom arg)) |
| 3994 | debug-on-error) |
| 3995 | (if (null viper-s-string) (error viper-NoPrevSearch)) |
| 3996 | (viper-search viper-s-string (not viper-s-forward) arg) |
| 3997 | (if com |
| 3998 | (progn |
| 3999 | (viper-move-marker-locally 'viper-com-point (mark t)) |
| 4000 | (viper-execute-com 'viper-search-Next val com))))) |
| 4001 | |
| 4002 | |
| 4003 | ;; Search contents of buffer defined by one of Viper's motion commands. |
| 4004 | ;; Repeatable via `n' and `N'. |
| 4005 | (defun viper-buffer-search-enable (&optional c) |
| 4006 | (cond (c (setq viper-buffer-search-char c)) |
| 4007 | ((null viper-buffer-search-char) |
| 4008 | ;; ?g acts as a default value for viper-buffer-search-char |
| 4009 | (setq viper-buffer-search-char ?g))) |
| 4010 | (define-key viper-vi-basic-map |
| 4011 | (cond ((viper-characterp viper-buffer-search-char) |
| 4012 | (char-to-string viper-buffer-search-char)) |
| 4013 | (t (error "viper-buffer-search-char: wrong value type, %S" |
| 4014 | viper-buffer-search-char))) |
| 4015 | 'viper-command-argument) |
| 4016 | (aset viper-exec-array viper-buffer-search-char 'viper-exec-buffer-search) |
| 4017 | (setq viper-prefix-commands |
| 4018 | (cons viper-buffer-search-char viper-prefix-commands))) |
| 4019 | |
| 4020 | ;; This is a Viper wrapper for isearch-forward. |
| 4021 | (defun viper-isearch-forward (arg) |
| 4022 | "Do incremental search forward." |
| 4023 | (interactive "P") |
| 4024 | ;; emacs bug workaround |
| 4025 | (if (listp arg) (setq arg (car arg))) |
| 4026 | (viper-exec-form-in-emacs (list 'isearch-forward arg))) |
| 4027 | |
| 4028 | ;; This is a Viper wrapper for isearch-backward." |
| 4029 | (defun viper-isearch-backward (arg) |
| 4030 | "Do incremental search backward." |
| 4031 | (interactive "P") |
| 4032 | ;; emacs bug workaround |
| 4033 | (if (listp arg) (setq arg (car arg))) |
| 4034 | (viper-exec-form-in-emacs (list 'isearch-backward arg))) |
| 4035 | |
| 4036 | \f |
| 4037 | ;; visiting and killing files, buffers |
| 4038 | |
| 4039 | (defun viper-switch-to-buffer () |
| 4040 | "Switch to buffer in the current window." |
| 4041 | (interactive) |
| 4042 | (let ((other-buffer (other-buffer (current-buffer))) |
| 4043 | buffer) |
| 4044 | (setq buffer |
| 4045 | (funcall viper-read-buffer-function |
| 4046 | "Switch to buffer in this window: " other-buffer)) |
| 4047 | (switch-to-buffer buffer))) |
| 4048 | |
| 4049 | (defun viper-switch-to-buffer-other-window () |
| 4050 | "Switch to buffer in another window." |
| 4051 | (interactive) |
| 4052 | (let ((other-buffer (other-buffer (current-buffer))) |
| 4053 | buffer) |
| 4054 | (setq buffer |
| 4055 | (funcall viper-read-buffer-function |
| 4056 | "Switch to buffer in another window: " other-buffer)) |
| 4057 | (switch-to-buffer-other-window buffer))) |
| 4058 | |
| 4059 | (defun viper-kill-buffer () |
| 4060 | "Kill a buffer." |
| 4061 | (interactive) |
| 4062 | (let (buffer buffer-name) |
| 4063 | (setq buffer-name |
| 4064 | (funcall viper-read-buffer-function |
| 4065 | (format "Kill buffer \(%s\): " |
| 4066 | (buffer-name (current-buffer))))) |
| 4067 | (setq buffer |
| 4068 | (if (null buffer-name) |
| 4069 | (current-buffer) |
| 4070 | (get-buffer buffer-name))) |
| 4071 | (if (null buffer) (error "`%s': No such buffer" buffer-name)) |
| 4072 | (if (or (not (buffer-modified-p buffer)) |
| 4073 | (y-or-n-p |
| 4074 | (format |
| 4075 | "Buffer `%s' is modified, are you sure you want to kill it? " |
| 4076 | buffer-name))) |
| 4077 | (kill-buffer buffer) |
| 4078 | (error "Buffer not killed")))) |
| 4079 | |
| 4080 | |
| 4081 | \f |
| 4082 | ;; yank and pop |
| 4083 | |
| 4084 | (defsubst viper-yank (text) |
| 4085 | "Yank TEXT silently. This works correctly with Emacs's yank-pop command." |
| 4086 | (insert text) |
| 4087 | (setq this-command 'yank)) |
| 4088 | |
| 4089 | (defun viper-put-back (arg) |
| 4090 | "Put back after point/below line." |
| 4091 | (interactive "P") |
| 4092 | (let ((val (viper-p-val arg)) |
| 4093 | (text (if viper-use-register |
| 4094 | (cond ((viper-valid-register viper-use-register '(digit)) |
| 4095 | (current-kill |
| 4096 | (- viper-use-register ?1) 'do-not-rotate)) |
| 4097 | ((viper-valid-register viper-use-register) |
| 4098 | (get-register (downcase viper-use-register))) |
| 4099 | (t (error viper-InvalidRegister viper-use-register))) |
| 4100 | (current-kill 0))) |
| 4101 | sv-point chars-inserted lines-inserted) |
| 4102 | (if (null text) |
| 4103 | (if viper-use-register |
| 4104 | (let ((reg viper-use-register)) |
| 4105 | (setq viper-use-register nil) |
| 4106 | (error viper-EmptyRegister reg)) |
| 4107 | (error "Viper bell"))) |
| 4108 | (setq viper-use-register nil) |
| 4109 | (if (viper-end-with-a-newline-p text) |
| 4110 | (progn |
| 4111 | (end-of-line) |
| 4112 | (if (eobp) |
| 4113 | (insert "\n") |
| 4114 | (forward-line 1)) |
| 4115 | (beginning-of-line)) |
| 4116 | (if (not (eolp)) (viper-forward-char-carefully))) |
| 4117 | (set-marker (viper-mark-marker) (point) (current-buffer)) |
| 4118 | (viper-set-destructive-command |
| 4119 | (list 'viper-put-back val nil viper-use-register nil nil)) |
| 4120 | (setq sv-point (point)) |
| 4121 | (viper-loop val (viper-yank text)) |
| 4122 | (setq chars-inserted (abs (- (point) sv-point)) |
| 4123 | lines-inserted (abs (count-lines (point) sv-point))) |
| 4124 | (if (or (> chars-inserted viper-change-notification-threshold) |
| 4125 | (> lines-inserted viper-change-notification-threshold)) |
| 4126 | (unless (viper-is-in-minibuffer) |
| 4127 | (message "Inserted %d character(s), %d line(s)" |
| 4128 | chars-inserted lines-inserted)))) |
| 4129 | ;; Vi puts cursor on the last char when the yanked text doesn't contain a |
| 4130 | ;; newline; it leaves the cursor at the beginning when the text contains |
| 4131 | ;; a newline |
| 4132 | (if (viper-same-line (point) (mark)) |
| 4133 | (or (= (point) (mark)) (viper-backward-char-carefully)) |
| 4134 | (exchange-point-and-mark) |
| 4135 | (if (bolp) |
| 4136 | (back-to-indentation))) |
| 4137 | (viper-deactivate-mark)) |
| 4138 | |
| 4139 | (defun viper-Put-back (arg) |
| 4140 | "Put back at point/above line." |
| 4141 | (interactive "P") |
| 4142 | (let ((val (viper-p-val arg)) |
| 4143 | (text (if viper-use-register |
| 4144 | (cond ((viper-valid-register viper-use-register '(digit)) |
| 4145 | (current-kill |
| 4146 | (- viper-use-register ?1) 'do-not-rotate)) |
| 4147 | ((viper-valid-register viper-use-register) |
| 4148 | (get-register (downcase viper-use-register))) |
| 4149 | (t (error viper-InvalidRegister viper-use-register))) |
| 4150 | (current-kill 0))) |
| 4151 | sv-point chars-inserted lines-inserted) |
| 4152 | (if (null text) |
| 4153 | (if viper-use-register |
| 4154 | (let ((reg viper-use-register)) |
| 4155 | (setq viper-use-register nil) |
| 4156 | (error viper-EmptyRegister reg)) |
| 4157 | (error "Viper bell"))) |
| 4158 | (setq viper-use-register nil) |
| 4159 | (if (viper-end-with-a-newline-p text) (beginning-of-line)) |
| 4160 | (viper-set-destructive-command |
| 4161 | (list 'viper-Put-back val nil viper-use-register nil nil)) |
| 4162 | (set-marker (viper-mark-marker) (point) (current-buffer)) |
| 4163 | (setq sv-point (point)) |
| 4164 | (viper-loop val (viper-yank text)) |
| 4165 | (setq chars-inserted (abs (- (point) sv-point)) |
| 4166 | lines-inserted (abs (count-lines (point) sv-point))) |
| 4167 | (if (or (> chars-inserted viper-change-notification-threshold) |
| 4168 | (> lines-inserted viper-change-notification-threshold)) |
| 4169 | (unless (viper-is-in-minibuffer) |
| 4170 | (message "Inserted %d character(s), %d line(s)" |
| 4171 | chars-inserted lines-inserted)))) |
| 4172 | ;; Vi puts cursor on the last char when the yanked text doesn't contain a |
| 4173 | ;; newline; it leaves the cursor at the beginning when the text contains |
| 4174 | ;; a newline |
| 4175 | (if (viper-same-line (point) (mark)) |
| 4176 | (or (= (point) (mark)) (viper-backward-char-carefully)) |
| 4177 | (exchange-point-and-mark) |
| 4178 | (if (bolp) |
| 4179 | (back-to-indentation))) |
| 4180 | (viper-deactivate-mark)) |
| 4181 | |
| 4182 | |
| 4183 | ;; Copy region to kill-ring. |
| 4184 | ;; If BEG and END do not belong to the same buffer, copy empty region. |
| 4185 | (defun viper-copy-region-as-kill (beg end) |
| 4186 | (condition-case nil |
| 4187 | (copy-region-as-kill beg end) |
| 4188 | (error (copy-region-as-kill beg beg)))) |
| 4189 | |
| 4190 | |
| 4191 | (defun viper-delete-char (arg) |
| 4192 | "Delete next character." |
| 4193 | (interactive "P") |
| 4194 | (let ((val (viper-p-val arg)) |
| 4195 | end-del-pos) |
| 4196 | (viper-set-destructive-command |
| 4197 | (list 'viper-delete-char val nil nil nil nil)) |
| 4198 | (if (and viper-ex-style-editing |
| 4199 | (> val (viper-chars-in-region (point) (viper-line-pos 'end)))) |
| 4200 | (setq val (viper-chars-in-region (point) (viper-line-pos 'end)))) |
| 4201 | (if (and viper-ex-style-motion (eolp)) |
| 4202 | (if (bolp) (error "Viper bell") (setq val 0))) ; not bol---simply back 1 ch |
| 4203 | (save-excursion |
| 4204 | (viper-forward-char-carefully val) |
| 4205 | (setq end-del-pos (point))) |
| 4206 | (if viper-use-register |
| 4207 | (progn |
| 4208 | (cond ((viper-valid-register viper-use-register '((Letter))) |
| 4209 | (viper-append-to-register |
| 4210 | (downcase viper-use-register) (point) end-del-pos)) |
| 4211 | ((viper-valid-register viper-use-register) |
| 4212 | (copy-to-register |
| 4213 | viper-use-register (point) end-del-pos nil)) |
| 4214 | (t (error viper-InvalidRegister viper-use-register))) |
| 4215 | (setq viper-use-register nil))) |
| 4216 | |
| 4217 | (delete-char val t) |
| 4218 | (if viper-ex-style-motion |
| 4219 | (if (and (eolp) (not (bolp))) (backward-char 1))) |
| 4220 | )) |
| 4221 | |
| 4222 | (defun viper-delete-backward-char (arg) |
| 4223 | "Delete previous character. On reaching beginning of line, stop and beep." |
| 4224 | (interactive "P") |
| 4225 | (let ((val (viper-p-val arg)) |
| 4226 | end-del-pos) |
| 4227 | (viper-set-destructive-command |
| 4228 | (list 'viper-delete-backward-char val nil nil nil nil)) |
| 4229 | (if (and |
| 4230 | viper-ex-style-editing |
| 4231 | (> val (viper-chars-in-region (viper-line-pos 'start) (point)))) |
| 4232 | (setq val (viper-chars-in-region (viper-line-pos 'start) (point)))) |
| 4233 | (save-excursion |
| 4234 | (viper-backward-char-carefully val) |
| 4235 | (setq end-del-pos (point))) |
| 4236 | (if viper-use-register |
| 4237 | (progn |
| 4238 | (cond ((viper-valid-register viper-use-register '(Letter)) |
| 4239 | (viper-append-to-register |
| 4240 | (downcase viper-use-register) end-del-pos (point))) |
| 4241 | ((viper-valid-register viper-use-register) |
| 4242 | (copy-to-register |
| 4243 | viper-use-register end-del-pos (point) nil)) |
| 4244 | (t (error viper-InvalidRegister viper-use-register))) |
| 4245 | (setq viper-use-register nil))) |
| 4246 | (if (and (bolp) viper-ex-style-editing) |
| 4247 | (ding)) |
| 4248 | (delete-char (- val) t))) |
| 4249 | |
| 4250 | |
| 4251 | (defun viper-del-backward-char-in-insert () |
| 4252 | "Delete 1 char backwards while in insert mode." |
| 4253 | (interactive) |
| 4254 | (if (and viper-ex-style-editing (bolp)) |
| 4255 | (beep 1) |
| 4256 | ;; don't put on kill ring |
| 4257 | (delete-char -1 nil))) |
| 4258 | |
| 4259 | |
| 4260 | (defun viper-del-backward-char-in-replace () |
| 4261 | "Delete one character in replace mode. |
| 4262 | If `viper-delete-backwards-in-replace' is t, then DEL key actually deletes |
| 4263 | characters. If it is nil, then the cursor just moves backwards, similarly |
| 4264 | to Vi. The variable `viper-ex-style-editing', if t, doesn't let the |
| 4265 | cursor move past the beginning of line." |
| 4266 | (interactive) |
| 4267 | (cond (viper-delete-backwards-in-replace |
| 4268 | (cond ((not (bolp)) |
| 4269 | ;; don't put on kill ring |
| 4270 | (delete-char -1 nil)) |
| 4271 | (viper-ex-style-editing |
| 4272 | (beep 1)) |
| 4273 | ((bobp) |
| 4274 | (beep 1)) |
| 4275 | (t |
| 4276 | ;; don't put on kill ring |
| 4277 | (delete-char -1 nil)))) |
| 4278 | (viper-ex-style-editing |
| 4279 | (if (bolp) |
| 4280 | (beep 1) |
| 4281 | (backward-char 1))) |
| 4282 | (t |
| 4283 | (backward-char 1)))) |
| 4284 | |
| 4285 | |
| 4286 | \f |
| 4287 | ;; join lines. |
| 4288 | |
| 4289 | (defun viper-join-lines (arg) |
| 4290 | "Join this line to next, if ARG is nil. Otherwise, join ARG lines." |
| 4291 | (interactive "*P") |
| 4292 | (let ((val (viper-P-val arg))) |
| 4293 | (viper-set-destructive-command |
| 4294 | (list 'viper-join-lines val nil nil nil nil)) |
| 4295 | (viper-loop (if (null val) 1 (1- val)) |
| 4296 | (end-of-line) |
| 4297 | (if (not (eobp)) |
| 4298 | (progn |
| 4299 | (forward-line 1) |
| 4300 | (delete-region (point) (1- (point))) |
| 4301 | (fixup-whitespace) |
| 4302 | ;; fixup-whitespace sometimes does not leave space |
| 4303 | ;; between objects, so we insert it as in Vi |
| 4304 | (or (looking-at " ") |
| 4305 | (insert " ") |
| 4306 | (backward-char 1)) |
| 4307 | ))))) |
| 4308 | |
| 4309 | \f |
| 4310 | ;; Replace state |
| 4311 | |
| 4312 | (defun viper-change (beg end) |
| 4313 | (if (markerp beg) (setq beg (marker-position beg))) |
| 4314 | (if (markerp end) (setq end (marker-position end))) |
| 4315 | ;; beg is sometimes (mark t), which may be nil |
| 4316 | (or beg (setq beg end)) |
| 4317 | |
| 4318 | (viper-set-complex-command-for-undo) |
| 4319 | (if viper-use-register |
| 4320 | (progn |
| 4321 | (copy-to-register viper-use-register beg end nil) |
| 4322 | (setq viper-use-register nil))) |
| 4323 | (viper-set-replace-overlay beg end) |
| 4324 | (setq last-command nil) ; separate repl text from prev kills |
| 4325 | |
| 4326 | (if (= (viper-replace-start) (point-max)) |
| 4327 | (error "End of buffer")) |
| 4328 | |
| 4329 | (setq viper-last-replace-region |
| 4330 | (buffer-substring (viper-replace-start) |
| 4331 | (viper-replace-end))) |
| 4332 | |
| 4333 | ;; protect against error while inserting "@" and other disasters |
| 4334 | ;; (e.g., read-only buff) |
| 4335 | (condition-case conds |
| 4336 | (if (or viper-allow-multiline-replace-regions |
| 4337 | (viper-same-line (viper-replace-start) |
| 4338 | (viper-replace-end))) |
| 4339 | (progn |
| 4340 | ;; tabs cause problems in replace, so untabify |
| 4341 | (goto-char (viper-replace-end)) |
| 4342 | (insert-before-markers "@") ; put placeholder after the TAB |
| 4343 | (untabify (viper-replace-start) (point)) |
| 4344 | ;; del @, don't put on kill ring |
| 4345 | (delete-char -1) |
| 4346 | |
| 4347 | (viper-set-replace-overlay-glyphs |
| 4348 | viper-replace-region-start-delimiter |
| 4349 | viper-replace-region-end-delimiter) |
| 4350 | ;; this move takes care of the last posn in the overlay, which |
| 4351 | ;; has to be shifted because of insert. We can't simply insert |
| 4352 | ;; "$" before-markers because then overlay-start will shift the |
| 4353 | ;; beginning of the overlay in case we are replacing a single |
| 4354 | ;; character. This fixes the bug with `s' and `cl' commands. |
| 4355 | (viper-move-replace-overlay (viper-replace-start) (point)) |
| 4356 | (goto-char (viper-replace-start)) |
| 4357 | (viper-change-state-to-replace t)) |
| 4358 | (kill-region (viper-replace-start) |
| 4359 | (viper-replace-end)) |
| 4360 | (viper-hide-replace-overlay) |
| 4361 | (viper-change-state-to-insert)) |
| 4362 | (error ;; make sure that the overlay doesn't stay. |
| 4363 | ;; go back to the original point |
| 4364 | (goto-char (viper-replace-start)) |
| 4365 | (viper-hide-replace-overlay) |
| 4366 | (viper-message-conditions conds)))) |
| 4367 | |
| 4368 | |
| 4369 | (defun viper-change-subr (beg end) |
| 4370 | ;; beg is sometimes (mark t), which may be nil |
| 4371 | (or beg (setq beg end)) |
| 4372 | (if viper-use-register |
| 4373 | (progn |
| 4374 | (copy-to-register viper-use-register beg end nil) |
| 4375 | (setq viper-use-register nil))) |
| 4376 | (kill-region beg end) |
| 4377 | (setq this-command 'viper-change) |
| 4378 | (viper-yank-last-insertion)) |
| 4379 | |
| 4380 | (defun viper-toggle-case (arg) |
| 4381 | "Toggle character case." |
| 4382 | (interactive "P") |
| 4383 | (let ((val (viper-p-val arg)) (c)) |
| 4384 | (viper-set-destructive-command |
| 4385 | (list 'viper-toggle-case val nil nil nil nil)) |
| 4386 | (while (> val 0) |
| 4387 | (setq c (following-char)) |
| 4388 | (delete-char 1 nil) |
| 4389 | (if (eq c (upcase c)) |
| 4390 | (insert-char (downcase c) 1) |
| 4391 | (insert-char (upcase c) 1)) |
| 4392 | (if (eolp) (backward-char 1)) |
| 4393 | (setq val (1- val))))) |
| 4394 | |
| 4395 | \f |
| 4396 | ;; query replace |
| 4397 | |
| 4398 | (defun viper-query-replace () |
| 4399 | "Query replace. |
| 4400 | If a null string is supplied as the string to be replaced, |
| 4401 | the query replace mode will toggle between string replace |
| 4402 | and regexp replace." |
| 4403 | (interactive) |
| 4404 | (let (str) |
| 4405 | (setq str (viper-read-string-with-history |
| 4406 | (if viper-re-query-replace "Query replace regexp: " |
| 4407 | "Query replace: ") |
| 4408 | nil ; no initial |
| 4409 | 'viper-replace1-history |
| 4410 | (car viper-replace1-history) ; default |
| 4411 | )) |
| 4412 | (if (string= str "") |
| 4413 | (progn |
| 4414 | (setq viper-re-query-replace (not viper-re-query-replace)) |
| 4415 | (message "Query replace mode changed to %s" |
| 4416 | (if viper-re-query-replace "regexp replace" |
| 4417 | "string replace"))) |
| 4418 | (if viper-re-query-replace |
| 4419 | (query-replace-regexp |
| 4420 | str |
| 4421 | (viper-read-string-with-history |
| 4422 | (format "Query replace regexp `%s' with: " str) |
| 4423 | nil ; no initial |
| 4424 | 'viper-replace1-history |
| 4425 | (car viper-replace1-history) ; default |
| 4426 | )) |
| 4427 | (query-replace |
| 4428 | str |
| 4429 | (viper-read-string-with-history |
| 4430 | (format "Query replace `%s' with: " str) |
| 4431 | nil ; no initial |
| 4432 | 'viper-replace1-history |
| 4433 | (car viper-replace1-history) ; default |
| 4434 | )))))) |
| 4435 | |
| 4436 | \f |
| 4437 | ;; marking |
| 4438 | |
| 4439 | (defun viper-mark-beginning-of-buffer () |
| 4440 | "Mark beginning of buffer." |
| 4441 | (interactive) |
| 4442 | (push-mark (point)) |
| 4443 | (goto-char (point-min)) |
| 4444 | (exchange-point-and-mark) |
| 4445 | (message "Mark set at the beginning of buffer")) |
| 4446 | |
| 4447 | (defun viper-mark-end-of-buffer () |
| 4448 | "Mark end of buffer." |
| 4449 | (interactive) |
| 4450 | (push-mark (point)) |
| 4451 | (goto-char (point-max)) |
| 4452 | (exchange-point-and-mark) |
| 4453 | (message "Mark set at the end of buffer")) |
| 4454 | |
| 4455 | (defun viper-mark-point () |
| 4456 | "Set mark at point of buffer." |
| 4457 | (interactive) |
| 4458 | (let ((char (read-char))) |
| 4459 | (cond ((and (<= ?a char) (<= char ?z)) |
| 4460 | (point-to-register (viper-int-to-char (1+ (- char ?a))))) |
| 4461 | ((viper= char ?<) (viper-mark-beginning-of-buffer)) |
| 4462 | ((viper= char ?>) (viper-mark-end-of-buffer)) |
| 4463 | ((viper= char ?.) (viper-set-mark-if-necessary)) |
| 4464 | ((viper= char ?,) (viper-cycle-through-mark-ring)) |
| 4465 | ((viper= char ?^) (push-mark viper-saved-mark t t)) |
| 4466 | ((viper= char ?D) (mark-defun)) |
| 4467 | (t (error "Viper bell")) |
| 4468 | ))) |
| 4469 | |
| 4470 | ;; Algorithm: If first invocation of this command save mark on ring, goto |
| 4471 | ;; mark, M0, and pop the most recent elt from the mark ring into mark, |
| 4472 | ;; making it into the new mark, M1. |
| 4473 | ;; Push this mark back and set mark to the original point position, p1. |
| 4474 | ;; So, if you hit '' or `` then you can return to p1. |
| 4475 | ;; |
| 4476 | ;; If repeated command, pop top elt from the ring into mark and |
| 4477 | ;; jump there. This forgets the position, p1, and puts M1 back into mark. |
| 4478 | ;; Then we save the current pos, which is M0, jump to M1 and pop M2 from |
| 4479 | ;; the ring into mark. Push M2 back on the ring and set mark to M0. |
| 4480 | ;; etc. |
| 4481 | (defun viper-cycle-through-mark-ring () |
| 4482 | "Visit previous locations on the mark ring. |
| 4483 | One can use `` and '' to temporarily jump 1 step back." |
| 4484 | (let* ((sv-pt (point))) |
| 4485 | ;; if repeated `m,' command, pop the previously saved mark. |
| 4486 | ;; Prev saved mark is actually prev saved point. It is used if the |
| 4487 | ;; user types `` or '' and is discarded |
| 4488 | ;; from the mark ring by the next `m,' command. |
| 4489 | ;; In any case, go to the previous or previously saved mark. |
| 4490 | ;; Then push the current mark (popped off the ring) and set current |
| 4491 | ;; point to be the mark. Current pt as mark is discarded by the next |
| 4492 | ;; m, command. |
| 4493 | (if (eq last-command 'viper-cycle-through-mark-ring) |
| 4494 | () |
| 4495 | ;; save current mark if the first iteration |
| 4496 | (setq mark-ring (delete (viper-mark-marker) mark-ring)) |
| 4497 | (if (mark t) |
| 4498 | (push-mark (mark t) t)) ) |
| 4499 | (pop-mark) |
| 4500 | (set-mark-command 1) |
| 4501 | ;; don't duplicate mark on the ring |
| 4502 | (setq mark-ring (delete (viper-mark-marker) mark-ring)) |
| 4503 | (push-mark sv-pt t) |
| 4504 | (viper-deactivate-mark) |
| 4505 | (setq this-command 'viper-cycle-through-mark-ring) |
| 4506 | )) |
| 4507 | |
| 4508 | |
| 4509 | (defun viper-goto-mark (arg) |
| 4510 | "Go to mark." |
| 4511 | (interactive "P") |
| 4512 | (let ((char (read-char)) |
| 4513 | (com (viper-getcom arg))) |
| 4514 | (viper-goto-mark-subr char com nil))) |
| 4515 | |
| 4516 | (defun viper-goto-mark-and-skip-white (arg) |
| 4517 | "Go to mark and skip to first non-white character on line." |
| 4518 | (interactive "P") |
| 4519 | (let ((char (read-char)) |
| 4520 | (com (viper-getCom arg))) |
| 4521 | (viper-goto-mark-subr char com t))) |
| 4522 | |
| 4523 | (defun viper-goto-mark-subr (char com skip-white) |
| 4524 | (if (eobp) |
| 4525 | (if (bobp) |
| 4526 | (error "Empty buffer") |
| 4527 | (backward-char 1))) |
| 4528 | (cond ((viper-valid-register char '(letter)) |
| 4529 | (let* ((buff (current-buffer)) |
| 4530 | (reg (viper-int-to-char (1+ (- char ?a)))) |
| 4531 | (text-marker (get-register reg))) |
| 4532 | ;; If marker points to file that had markers set (and those markers |
| 4533 | ;; were saved (as e.g., in session.el), then restore those markers |
| 4534 | (if (and (consp text-marker) |
| 4535 | (eq (car text-marker) 'file-query) |
| 4536 | (or (find-buffer-visiting (nth 1 text-marker)) |
| 4537 | (y-or-n-p (format "Visit file %s again? " |
| 4538 | (nth 1 text-marker))))) |
| 4539 | (save-excursion |
| 4540 | (find-file (nth 1 text-marker)) |
| 4541 | (when (and (<= (nth 2 text-marker) (point-max)) |
| 4542 | (<= (point-min) (nth 2 text-marker))) |
| 4543 | (setq text-marker (copy-marker (nth 2 text-marker))) |
| 4544 | (set-register reg text-marker)))) |
| 4545 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 4546 | (if (not (viper-valid-marker text-marker)) |
| 4547 | (error viper-EmptyTextmarker char)) |
| 4548 | (if (and (viper-same-line (point) viper-last-jump) |
| 4549 | (= (point) viper-last-jump-ignore)) |
| 4550 | (push-mark viper-last-jump t) |
| 4551 | (push-mark nil t)) ; no msg |
| 4552 | (viper-register-to-point reg) |
| 4553 | (setq viper-last-jump (point-marker)) |
| 4554 | (cond (skip-white |
| 4555 | (back-to-indentation) |
| 4556 | (setq viper-last-jump-ignore (point)))) |
| 4557 | (if com |
| 4558 | (if (equal buff (current-buffer)) |
| 4559 | (viper-execute-com (if skip-white |
| 4560 | 'viper-goto-mark-and-skip-white |
| 4561 | 'viper-goto-mark) |
| 4562 | nil com) |
| 4563 | (switch-to-buffer buff) |
| 4564 | (goto-char viper-com-point) |
| 4565 | (viper-change-state-to-vi) |
| 4566 | (error "Viper bell"))))) |
| 4567 | ((and (not skip-white) (viper= char ?`)) |
| 4568 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 4569 | (if (and (viper-same-line (point) viper-last-jump) |
| 4570 | (= (point) viper-last-jump-ignore)) |
| 4571 | (goto-char viper-last-jump)) |
| 4572 | (if (null (mark t)) (error "Mark is not set in this buffer")) |
| 4573 | (if (= (point) (mark t)) (pop-mark)) |
| 4574 | (exchange-point-and-mark) |
| 4575 | (setq viper-last-jump (point-marker) |
| 4576 | viper-last-jump-ignore 0) |
| 4577 | (if com (viper-execute-com 'viper-goto-mark nil com))) |
| 4578 | ((and skip-white (viper= char ?')) |
| 4579 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
| 4580 | (if (and (viper-same-line (point) viper-last-jump) |
| 4581 | (= (point) viper-last-jump-ignore)) |
| 4582 | (goto-char viper-last-jump)) |
| 4583 | (if (= (point) (mark t)) (pop-mark)) |
| 4584 | (exchange-point-and-mark) |
| 4585 | (setq viper-last-jump (point)) |
| 4586 | (back-to-indentation) |
| 4587 | (setq viper-last-jump-ignore (point)) |
| 4588 | (if com (viper-execute-com 'viper-goto-mark-and-skip-white nil com))) |
| 4589 | (t (error viper-InvalidTextmarker char)))) |
| 4590 | |
| 4591 | (defun viper-insert-tab () |
| 4592 | (interactive) |
| 4593 | (insert-tab)) |
| 4594 | |
| 4595 | (defun viper-exchange-point-and-mark () |
| 4596 | (interactive) |
| 4597 | (exchange-point-and-mark) |
| 4598 | (back-to-indentation)) |
| 4599 | |
| 4600 | ;; Input Mode Indentation |
| 4601 | |
| 4602 | ;; Returns t, if the string before point matches the regexp STR. |
| 4603 | (defsubst viper-looking-back (str) |
| 4604 | (and (save-excursion (re-search-backward str nil t)) |
| 4605 | (= (point) (match-end 0)))) |
| 4606 | |
| 4607 | |
| 4608 | (defun viper-forward-indent () |
| 4609 | "Indent forward -- `C-t' in Vi." |
| 4610 | (interactive) |
| 4611 | (setq viper-cted t) |
| 4612 | (indent-to (+ (current-column) viper-shift-width))) |
| 4613 | |
| 4614 | (defun viper-backward-indent () |
| 4615 | "Backtab, `C-d' in Vi." |
| 4616 | (interactive) |
| 4617 | (if viper-cted |
| 4618 | (let ((p (point)) (c (current-column)) bol (indent t)) |
| 4619 | (if (viper-looking-back "[0^]") |
| 4620 | (progn |
| 4621 | (if (eq ?^ (preceding-char)) |
| 4622 | (setq viper-preserve-indent t)) |
| 4623 | (delete-char -1) |
| 4624 | (setq p (point)) |
| 4625 | (setq indent nil))) |
| 4626 | (setq bol (point-at-bol)) |
| 4627 | (if (re-search-backward "[^ \t]" bol 1) (forward-char)) |
| 4628 | (delete-region (point) p) |
| 4629 | (if indent |
| 4630 | (indent-to (- c viper-shift-width))) |
| 4631 | (if (or (bolp) (viper-looking-back "[^ \t]")) |
| 4632 | (setq viper-cted nil))))) |
| 4633 | |
| 4634 | ;; do smart indent |
| 4635 | (defun viper-indent-line (col) |
| 4636 | (if viper-auto-indent |
| 4637 | (progn |
| 4638 | (setq viper-cted t) |
| 4639 | (if (and viper-electric-mode |
| 4640 | (not (memq major-mode '(fundamental-mode |
| 4641 | text-mode |
| 4642 | paragraph-indent-text-mode)))) |
| 4643 | (indent-according-to-mode) |
| 4644 | (indent-to col))))) |
| 4645 | |
| 4646 | |
| 4647 | (defun viper-autoindent () |
| 4648 | "Auto Indentation, Vi-style." |
| 4649 | (interactive) |
| 4650 | (let ((col (current-indentation))) |
| 4651 | (if abbrev-mode (expand-abbrev)) |
| 4652 | (if viper-preserve-indent |
| 4653 | (setq viper-preserve-indent nil) |
| 4654 | (setq viper-current-indent col)) |
| 4655 | ;; don't leave whitespace lines around |
| 4656 | (if (memq last-command |
| 4657 | '(viper-autoindent |
| 4658 | viper-open-line viper-Open-line |
| 4659 | viper-replace-state-exit-cmd)) |
| 4660 | (indent-to-left-margin)) |
| 4661 | ;; use \n instead of newline, or else <Return> will move the insert point |
| 4662 | ;;(newline 1) |
| 4663 | (insert "\n") |
| 4664 | (viper-indent-line viper-current-indent) |
| 4665 | )) |
| 4666 | |
| 4667 | |
| 4668 | ;; Viewing registers |
| 4669 | |
| 4670 | (defun viper-ket-function (arg) |
| 4671 | "Function called by \], the ket. View registers and call \]\]." |
| 4672 | (interactive "P") |
| 4673 | (let ((reg (read-char))) |
| 4674 | (cond ((viper-valid-register reg '(letter Letter)) |
| 4675 | (view-register (downcase reg))) |
| 4676 | ((viper-valid-register reg '(digit)) |
| 4677 | (let ((text (current-kill (- reg ?1) 'do-not-rotate))) |
| 4678 | (with-output-to-temp-buffer " *viper-info*" |
| 4679 | (princ (format "Register %c contains the string:\n" reg)) |
| 4680 | (princ text)) |
| 4681 | )) |
| 4682 | ((viper= ?\] reg) |
| 4683 | (viper-next-heading arg)) |
| 4684 | (t (error |
| 4685 | viper-InvalidRegister reg))))) |
| 4686 | |
| 4687 | (defun viper-brac-function (arg) |
| 4688 | "Function called by \[, the brac. View textmarkers and call \[\[." |
| 4689 | (interactive "P") |
| 4690 | (let ((reg (read-char))) |
| 4691 | (cond ((viper= ?\[ reg) |
| 4692 | (viper-prev-heading arg)) |
| 4693 | ((viper= ?\] reg) |
| 4694 | (viper-heading-end arg)) |
| 4695 | ((viper-valid-register reg '(letter)) |
| 4696 | (let* ((val (get-register (viper-int-to-char (1+ (- reg ?a))))) |
| 4697 | (buf (if (not (markerp val)) |
| 4698 | (error viper-EmptyTextmarker reg) |
| 4699 | (marker-buffer val))) |
| 4700 | (pos (marker-position val)) |
| 4701 | line-no text (s pos) (e pos)) |
| 4702 | (with-output-to-temp-buffer " *viper-info*" |
| 4703 | (if (and buf pos) |
| 4704 | (progn |
| 4705 | (with-current-buffer buf |
| 4706 | (setq line-no (1+ (count-lines (point-min) val))) |
| 4707 | (goto-char pos) |
| 4708 | (beginning-of-line) |
| 4709 | (if (re-search-backward "[^ \t]" nil t) |
| 4710 | (setq s (point-at-bol))) |
| 4711 | (goto-char pos) |
| 4712 | (forward-line 1) |
| 4713 | (if (re-search-forward "[^ \t]" nil t) |
| 4714 | (progn |
| 4715 | (end-of-line) |
| 4716 | (setq e (point)))) |
| 4717 | (setq text (buffer-substring s e)) |
| 4718 | (setq text (format "%s<%c>%s" |
| 4719 | (substring text 0 (- pos s)) |
| 4720 | reg (substring text (- pos s))))) |
| 4721 | (princ |
| 4722 | (format |
| 4723 | "Textmarker `%c' is in buffer `%s' at line %d.\n" |
| 4724 | reg (buffer-name buf) line-no)) |
| 4725 | (princ (format "Here is some text around %c:\n\n %s" |
| 4726 | reg text))) |
| 4727 | (princ (format viper-EmptyTextmarker reg)))) |
| 4728 | )) |
| 4729 | (t (error viper-InvalidTextmarker reg))))) |
| 4730 | |
| 4731 | |
| 4732 | |
| 4733 | (defun viper-delete-backward-word (arg) |
| 4734 | "Delete previous word." |
| 4735 | (interactive "p") |
| 4736 | (save-excursion |
| 4737 | (push-mark nil t) |
| 4738 | (backward-word arg) |
| 4739 | (delete-region (point) (mark t)) |
| 4740 | (pop-mark))) |
| 4741 | |
| 4742 | \f |
| 4743 | |
| 4744 | ;; Get viper standard value of SYMBOL. If symbol is customized, get its |
| 4745 | ;; standard value. Otherwise, get the value saved in the alist STORAGE. If |
| 4746 | ;; STORAGE is nil, use viper-saved-user-settings. |
| 4747 | (defun viper-standard-value (symbol &optional storage) |
| 4748 | (or (eval (car (get symbol 'customized-value))) |
| 4749 | (eval (car (get symbol 'saved-value))) |
| 4750 | (nth 1 (assoc symbol (or storage viper-saved-user-settings))))) |
| 4751 | |
| 4752 | |
| 4753 | |
| 4754 | (defun viper-set-expert-level (&optional dont-change-unless) |
| 4755 | "Sets the expert level for a Viper user. |
| 4756 | Can be called interactively to change (temporarily or permanently) the |
| 4757 | current expert level. |
| 4758 | |
| 4759 | The optional argument DONT-CHANGE-UNLESS, if not nil, says that |
| 4760 | the level should not be changed, unless its current value is |
| 4761 | meaningless (i.e., not one of 1,2,3,4,5). |
| 4762 | |
| 4763 | User level determines the setting of Viper variables that are most |
| 4764 | sensitive for VI-style look-and-feel." |
| 4765 | |
| 4766 | (interactive) |
| 4767 | |
| 4768 | (if (not (natnump viper-expert-level)) (setq viper-expert-level 0)) |
| 4769 | |
| 4770 | (save-window-excursion |
| 4771 | (delete-other-windows) |
| 4772 | ;; if 0 < viper-expert-level < viper-max-expert-level |
| 4773 | ;; & dont-change-unless = t -- use it; else ask |
| 4774 | (viper-ask-level dont-change-unless)) |
| 4775 | |
| 4776 | (setq viper-always t |
| 4777 | viper-ex-style-motion t |
| 4778 | viper-ex-style-editing t |
| 4779 | viper-want-ctl-h-help nil) |
| 4780 | |
| 4781 | (cond ((eq viper-expert-level 1) ; novice or beginner |
| 4782 | (global-set-key ; in emacs-state |
| 4783 | viper-toggle-key |
| 4784 | (if (viper-window-display-p) 'viper-iconify 'suspend-emacs)) |
| 4785 | (setq viper-no-multiple-ESC t |
| 4786 | viper-re-search t |
| 4787 | viper-vi-style-in-minibuffer t |
| 4788 | viper-search-wrap-around t |
| 4789 | viper-electric-mode nil |
| 4790 | viper-want-emacs-keys-in-vi nil |
| 4791 | viper-want-emacs-keys-in-insert nil)) |
| 4792 | |
| 4793 | ((and (> viper-expert-level 1) (< viper-expert-level 5)) |
| 4794 | ;; intermediate to guru |
| 4795 | (setq viper-no-multiple-ESC (if (viper-window-display-p) |
| 4796 | t 'twice) |
| 4797 | viper-electric-mode t |
| 4798 | viper-want-emacs-keys-in-vi t |
| 4799 | viper-want-emacs-keys-in-insert (> viper-expert-level 2)) |
| 4800 | |
| 4801 | (if (eq viper-expert-level 4) ; respect user's ex-style motion |
| 4802 | ; and viper-no-multiple-ESC |
| 4803 | (progn |
| 4804 | (setq-default |
| 4805 | viper-ex-style-editing |
| 4806 | (viper-standard-value 'viper-ex-style-editing) |
| 4807 | viper-ex-style-motion |
| 4808 | (viper-standard-value 'viper-ex-style-motion)) |
| 4809 | (setq viper-ex-style-motion |
| 4810 | (viper-standard-value 'viper-ex-style-motion) |
| 4811 | viper-ex-style-editing |
| 4812 | (viper-standard-value 'viper-ex-style-editing) |
| 4813 | viper-re-search |
| 4814 | (viper-standard-value 'viper-re-search) |
| 4815 | viper-no-multiple-ESC |
| 4816 | (viper-standard-value 'viper-no-multiple-ESC))))) |
| 4817 | |
| 4818 | ;; A wizard!! |
| 4819 | ;; Ideally, if 5 is selected, a buffer should pop up to let the |
| 4820 | ;; user toggle the values of variables. |
| 4821 | (t (setq-default viper-ex-style-editing |
| 4822 | (viper-standard-value 'viper-ex-style-editing) |
| 4823 | viper-ex-style-motion |
| 4824 | (viper-standard-value 'viper-ex-style-motion)) |
| 4825 | (setq viper-want-ctl-h-help |
| 4826 | (viper-standard-value 'viper-want-ctl-h-help) |
| 4827 | viper-always |
| 4828 | (viper-standard-value 'viper-always) |
| 4829 | viper-no-multiple-ESC |
| 4830 | (viper-standard-value 'viper-no-multiple-ESC) |
| 4831 | viper-ex-style-motion |
| 4832 | (viper-standard-value 'viper-ex-style-motion) |
| 4833 | viper-ex-style-editing |
| 4834 | (viper-standard-value 'viper-ex-style-editing) |
| 4835 | viper-re-search |
| 4836 | (viper-standard-value 'viper-re-search) |
| 4837 | viper-electric-mode |
| 4838 | (viper-standard-value 'viper-electric-mode) |
| 4839 | viper-want-emacs-keys-in-vi |
| 4840 | (viper-standard-value 'viper-want-emacs-keys-in-vi) |
| 4841 | viper-want-emacs-keys-in-insert |
| 4842 | (viper-standard-value 'viper-want-emacs-keys-in-insert)))) |
| 4843 | |
| 4844 | (viper-set-mode-vars-for viper-current-state) |
| 4845 | (if (or viper-always |
| 4846 | (and (> viper-expert-level 0) (> 5 viper-expert-level))) |
| 4847 | (viper-set-hooks))) |
| 4848 | |
| 4849 | |
| 4850 | ;; Ask user expert level. |
| 4851 | (defun viper-ask-level (dont-change-unless) |
| 4852 | (let ((ask-buffer " *viper-ask-level*") |
| 4853 | level-changed repeated) |
| 4854 | (save-window-excursion |
| 4855 | (switch-to-buffer ask-buffer) |
| 4856 | |
| 4857 | (while (or (> viper-expert-level viper-max-expert-level) |
| 4858 | (< viper-expert-level 1) |
| 4859 | (null dont-change-unless)) |
| 4860 | (erase-buffer) |
| 4861 | (if repeated |
| 4862 | (progn |
| 4863 | (message "Invalid user level") |
| 4864 | (beep 1)) |
| 4865 | (setq repeated t)) |
| 4866 | (setq dont-change-unless t |
| 4867 | level-changed t) |
| 4868 | (insert " |
| 4869 | Please specify your level of familiarity with the venomous VI PERil |
| 4870 | \(and the VI Plan for Emacs Rescue). |
| 4871 | You can change it at any time by typing `M-x viper-set-expert-level RET' |
| 4872 | |
| 4873 | 1 -- BEGINNER: Almost all Emacs features are suppressed. |
| 4874 | Feels almost like straight Vi. File name completion and |
| 4875 | command history in the minibuffer are thrown in as a bonus. |
| 4876 | To use Emacs productively, you must reach level 3 or higher. |
| 4877 | 2 -- MASTER: C-c now has its standard Emacs meaning in Vi command state, |
| 4878 | so most Emacs commands can be used when Viper is in Vi state. |
| 4879 | Good progress---you are well on the way to level 3! |
| 4880 | 3 -- GRAND MASTER: Like 2, but most Emacs commands are available also |
| 4881 | in Viper's insert state. |
| 4882 | 4 -- GURU: Like 3, but user settings are respected for viper-no-multiple-ESC, |
| 4883 | viper-ex-style-motion, viper-ex-style-editing, and |
| 4884 | viper-re-search variables. Adjust these settings to your taste. |
| 4885 | 5 -- WIZARD: Like 4, but user settings are also respected for viper-always, |
| 4886 | viper-electric-mode, viper-want-ctl-h-help, viper-want-emacs-keys-in-vi, |
| 4887 | and viper-want-emacs-keys-in-insert. Adjust these to your taste. |
| 4888 | |
| 4889 | Please, specify your level now: ") |
| 4890 | |
| 4891 | (setq viper-expert-level (- (viper-read-char-exclusive) ?0)) |
| 4892 | ) ; end while |
| 4893 | |
| 4894 | ;; tell the user if level was changed |
| 4895 | (and level-changed |
| 4896 | (progn |
| 4897 | (insert |
| 4898 | (format "\n\n\n\n\n\t\tYou have selected user level %d" |
| 4899 | viper-expert-level)) |
| 4900 | (if (y-or-n-p "Do you wish to make this change permanent? ") |
| 4901 | ;; save the setting for viper-expert-level |
| 4902 | (viper-save-setting |
| 4903 | 'viper-expert-level |
| 4904 | (format "Saving user level %d ..." viper-expert-level) |
| 4905 | viper-custom-file-name)) |
| 4906 | )) |
| 4907 | (bury-buffer) ; remove ask-buffer from screen |
| 4908 | (message "") |
| 4909 | ))) |
| 4910 | |
| 4911 | |
| 4912 | (defun viper-nil () |
| 4913 | (interactive) |
| 4914 | (beep 1)) |
| 4915 | |
| 4916 | |
| 4917 | ;; if ENFORCE-BUFFER is not nil, error if CHAR is a marker in another buffer |
| 4918 | (defun viper-register-to-point (char &optional enforce-buffer) |
| 4919 | "Like `jump-to-register', but switches to another buffer in another window." |
| 4920 | (interactive "cViper register to point: ") |
| 4921 | (let ((val (get-register char))) |
| 4922 | (cond |
| 4923 | ((and (fboundp 'frame-configuration-p) |
| 4924 | (frame-configuration-p val)) |
| 4925 | (set-frame-configuration val)) |
| 4926 | ((window-configuration-p val) |
| 4927 | (set-window-configuration val)) |
| 4928 | ((viper-valid-marker val) |
| 4929 | (if (and enforce-buffer |
| 4930 | (not (equal (current-buffer) (marker-buffer val)))) |
| 4931 | (error (concat viper-EmptyTextmarker " in this buffer") |
| 4932 | (viper-int-to-char (1- (+ char ?a))))) |
| 4933 | (pop-to-buffer (marker-buffer val)) |
| 4934 | (goto-char val)) |
| 4935 | ((and (consp val) (eq (car val) 'file)) |
| 4936 | (find-file (cdr val))) |
| 4937 | (t |
| 4938 | (error viper-EmptyTextmarker (viper-int-to-char (1- (+ char ?a)))))))) |
| 4939 | |
| 4940 | |
| 4941 | (defun viper-save-kill-buffer () |
| 4942 | "Save then kill current buffer." |
| 4943 | (interactive) |
| 4944 | (if (< viper-expert-level 2) |
| 4945 | (save-buffers-kill-emacs) |
| 4946 | (save-buffer) |
| 4947 | (kill-buffer (current-buffer)))) |
| 4948 | |
| 4949 | |
| 4950 | \f |
| 4951 | ;;; Bug Report |
| 4952 | |
| 4953 | (defun viper-submit-report () |
| 4954 | "Submit bug report on Viper." |
| 4955 | (interactive) |
| 4956 | (let ((reporter-prompt-for-summary-p t) |
| 4957 | (viper-device-type (viper-device-type)) |
| 4958 | color-display-p frame-parameters |
| 4959 | minibuffer-emacs-face minibuffer-vi-face minibuffer-insert-face |
| 4960 | varlist salutation window-config) |
| 4961 | |
| 4962 | ;; If mode info is needed, add variable to `let' and then set it below, |
| 4963 | ;; like we did with color-display-p. |
| 4964 | (setq color-display-p (if (viper-window-display-p) |
| 4965 | (viper-color-display-p) |
| 4966 | 'non-x) |
| 4967 | minibuffer-vi-face (if (viper-has-face-support-p) |
| 4968 | (viper-get-face viper-minibuffer-vi-face) |
| 4969 | 'non-x) |
| 4970 | minibuffer-insert-face (if (viper-has-face-support-p) |
| 4971 | (viper-get-face |
| 4972 | viper-minibuffer-insert-face) |
| 4973 | 'non-x) |
| 4974 | minibuffer-emacs-face (if (viper-has-face-support-p) |
| 4975 | (viper-get-face |
| 4976 | viper-minibuffer-emacs-face) |
| 4977 | 'non-x) |
| 4978 | frame-parameters (if (fboundp 'frame-parameters) |
| 4979 | (frame-parameters (selected-frame)))) |
| 4980 | |
| 4981 | (setq varlist (list 'viper-vi-minibuffer-minor-mode |
| 4982 | 'viper-insert-minibuffer-minor-mode |
| 4983 | 'viper-vi-intercept-minor-mode |
| 4984 | 'viper-vi-local-user-minor-mode |
| 4985 | 'viper-vi-kbd-minor-mode |
| 4986 | 'viper-vi-global-user-minor-mode |
| 4987 | 'viper-vi-state-modifier-minor-mode |
| 4988 | 'viper-vi-diehard-minor-mode |
| 4989 | 'viper-vi-basic-minor-mode |
| 4990 | 'viper-replace-minor-mode |
| 4991 | 'viper-insert-intercept-minor-mode |
| 4992 | 'viper-insert-local-user-minor-mode |
| 4993 | 'viper-insert-kbd-minor-mode |
| 4994 | 'viper-insert-global-user-minor-mode |
| 4995 | 'viper-insert-state-modifier-minor-mode |
| 4996 | 'viper-insert-diehard-minor-mode |
| 4997 | 'viper-insert-basic-minor-mode |
| 4998 | 'viper-emacs-intercept-minor-mode |
| 4999 | 'viper-emacs-local-user-minor-mode |
| 5000 | 'viper-emacs-kbd-minor-mode |
| 5001 | 'viper-emacs-global-user-minor-mode |
| 5002 | 'viper-emacs-state-modifier-minor-mode |
| 5003 | 'viper-automatic-iso-accents |
| 5004 | 'viper-special-input-method |
| 5005 | 'viper-want-emacs-keys-in-insert |
| 5006 | 'viper-want-emacs-keys-in-vi |
| 5007 | 'viper-keep-point-on-undo |
| 5008 | 'viper-no-multiple-ESC |
| 5009 | 'viper-electric-mode |
| 5010 | 'viper-ESC-key |
| 5011 | 'viper-want-ctl-h-help |
| 5012 | 'viper-ex-style-editing |
| 5013 | 'viper-delete-backwards-in-replace |
| 5014 | 'viper-vi-style-in-minibuffer |
| 5015 | 'viper-vi-state-hook |
| 5016 | 'viper-insert-state-hook |
| 5017 | 'viper-replace-state-hook |
| 5018 | 'viper-emacs-state-hook |
| 5019 | 'ex-cycle-other-window |
| 5020 | 'ex-cycle-through-non-files |
| 5021 | 'viper-expert-level |
| 5022 | 'major-mode |
| 5023 | 'viper-device-type |
| 5024 | 'color-display-p |
| 5025 | 'frame-parameters |
| 5026 | 'minibuffer-vi-face |
| 5027 | 'minibuffer-insert-face |
| 5028 | 'minibuffer-emacs-face |
| 5029 | )) |
| 5030 | (setq salutation " |
| 5031 | Congratulations! You may have unearthed a bug in Viper! |
| 5032 | Please mail a concise, accurate summary of the problem to the address above. |
| 5033 | |
| 5034 | -------------------------------------------------------------------") |
| 5035 | (setq window-config (current-window-configuration)) |
| 5036 | (with-output-to-temp-buffer " *viper-info*" |
| 5037 | (switch-to-buffer " *viper-info*") |
| 5038 | (delete-other-windows) |
| 5039 | (princ " |
| 5040 | PLEASE FOLLOW THESE PROCEDURES |
| 5041 | ------------------------------ |
| 5042 | |
| 5043 | Before reporting a bug, please verify that it is related to Viper, and is |
| 5044 | not caused by other packages you are using. |
| 5045 | |
| 5046 | Don't report compilation warnings, unless you are certain that there is a |
| 5047 | problem. These warnings are normal and unavoidable. |
| 5048 | |
| 5049 | Please note that users should not modify variables and keymaps other than |
| 5050 | those advertised in the manual. Such `customization' is likely to crash |
| 5051 | Viper, as it would any other improperly customized Emacs package. |
| 5052 | |
| 5053 | If you are reporting an error message received while executing one of the |
| 5054 | Viper commands, type: |
| 5055 | |
| 5056 | M-x set-variable <Return> debug-on-error <Return> t <Return> |
| 5057 | |
| 5058 | Then reproduce the error. The above command will cause Emacs to produce a |
| 5059 | back trace of the execution that leads to the error. Please include this |
| 5060 | trace in your bug report. |
| 5061 | |
| 5062 | If you believe that one of Viper's commands goes into an infinite loop |
| 5063 | \(e.g., Emacs freezes\), type: |
| 5064 | |
| 5065 | M-x set-variable <Return> debug-on-quit <Return> t <Return> |
| 5066 | |
| 5067 | Then reproduce the problem. Wait for a few seconds, then type C-g to abort |
| 5068 | the current command. Include the resulting back trace in the bug report. |
| 5069 | |
| 5070 | Mail anyway (y or n)? ") |
| 5071 | (if (y-or-n-p "Mail anyway? ") |
| 5072 | () |
| 5073 | (set-window-configuration window-config) |
| 5074 | (error "Bug report aborted"))) |
| 5075 | |
| 5076 | (require 'reporter) |
| 5077 | (set-window-configuration window-config) |
| 5078 | |
| 5079 | (reporter-submit-bug-report "kifer@cs.stonybrook.edu" |
| 5080 | (viper-version) |
| 5081 | varlist |
| 5082 | nil 'delete-other-windows |
| 5083 | salutation) |
| 5084 | )) |
| 5085 | |
| 5086 | |
| 5087 | |
| 5088 | |
| 5089 | ;;; viper-cmd.el ends here |