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d5e52f99 MK |
1 | ;;; viper-cmd.el --- Vi command support for Viper |
2 | ;; Copyright (C) 1997 Free Software Foundation, Inc. | |
3 | ||
454b1ed8 RS |
4 | ;; This file is part of GNU Emacs. |
5 | ||
6 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
7 | ;; it under the terms of the GNU General Public License as published by | |
8 | ;; the Free Software Foundation; either version 2, or (at your option) | |
9 | ;; any later version. | |
10 | ||
11 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
12 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | ;; GNU General Public License for more details. | |
15 | ||
16 | ;; You should have received a copy of the GNU General Public License | |
17 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
18 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | ;; Boston, MA 02111-1307, USA. | |
d5e52f99 MK |
20 | |
21 | ;; Code | |
22 | ||
23 | (provide 'viper-cmd) | |
726e270f | 24 | (require 'advice) |
d5e52f99 MK |
25 | |
26 | ;; Compiler pacifier | |
2f3eb3b6 MK |
27 | (defvar viper-minibuffer-current-face) |
28 | (defvar viper-minibuffer-insert-face) | |
29 | (defvar viper-minibuffer-vi-face) | |
30 | (defvar viper-minibuffer-emacs-face) | |
e36a387d | 31 | (defvar viper-always) |
2f3eb3b6 MK |
32 | (defvar viper-mode-string) |
33 | (defvar viper-custom-file-name) | |
d5e52f99 | 34 | (defvar iso-accents-mode) |
34317da2 MK |
35 | (defvar quail-mode) |
36 | (defvar quail-current-str) | |
d5e52f99 MK |
37 | (defvar zmacs-region-stays) |
38 | (defvar mark-even-if-inactive) | |
39 | ||
726e270f MK |
40 | ;; loading happens only in non-interactive compilation |
41 | ;; in order to spare non-viperized emacs from being viperized | |
42 | (if noninteractive | |
43 | (eval-when-compile | |
44 | (let ((load-path (cons (expand-file-name ".") load-path))) | |
45 | (or (featurep 'viper-util) | |
46 | (load "viper-util.el" nil nil 'nosuffix)) | |
47 | (or (featurep 'viper-keym) | |
48 | (load "viper-keym.el" nil nil 'nosuffix)) | |
49 | (or (featurep 'viper-mous) | |
50 | (load "viper-mous.el" nil nil 'nosuffix)) | |
51 | (or (featurep 'viper-macs) | |
52 | (load "viper-macs.el" nil nil 'nosuffix)) | |
53 | (or (featurep 'viper-ex) | |
54 | (load "viper-ex.el" nil nil 'nosuffix)) | |
55 | ))) | |
d5e52f99 MK |
56 | ;; end pacifier |
57 | ||
58 | ||
59 | (require 'viper-util) | |
60 | (require 'viper-keym) | |
61 | (require 'viper-mous) | |
62 | (require 'viper-macs) | |
63 | (require 'viper-ex) | |
64 | ||
65 | ||
66 | \f | |
67 | ;; Generic predicates | |
68 | ||
69 | ;; These test functions are shamelessly lifted from vip 4.4.2 by Aamod Sane | |
70 | ||
71 | ;; generate test functions | |
72 | ;; given symbol foo, foo-p is the test function, foos is the set of | |
73 | ;; Viper command keys | |
2f3eb3b6 | 74 | ;; (macroexpand '(viper-test-com-defun foo)) |
d5e52f99 MK |
75 | ;; (defun foo-p (com) (consp (memq (if (< com 0) (- com) com) foos))) |
76 | ||
2f3eb3b6 | 77 | (defmacro viper-test-com-defun (name) |
d5e52f99 MK |
78 | (let* ((snm (symbol-name name)) |
79 | (nm-p (intern (concat snm "-p"))) | |
80 | (nms (intern (concat snm "s")))) | |
81 | (` (defun (, nm-p) (com) | |
2f3eb3b6 MK |
82 | (consp (memq (if (and (viper-characterp com) (< com 0)) |
83 | (- com) com) (, nms))))))) | |
d5e52f99 MK |
84 | |
85 | ;; Variables for defining VI commands | |
86 | ||
87 | ;; Modifying commands that can be prefixes to movement commands | |
2f3eb3b6 MK |
88 | (defconst viper-prefix-commands '(?c ?d ?y ?! ?= ?# ?< ?> ?\")) |
89 | ;; define viper-prefix-command-p | |
90 | (viper-test-com-defun viper-prefix-command) | |
d5e52f99 MK |
91 | |
92 | ;; Commands that are pairs eg. dd. r and R here are a hack | |
2f3eb3b6 MK |
93 | (defconst viper-charpair-commands '(?c ?d ?y ?! ?= ?< ?> ?r ?R)) |
94 | ;; define viper-charpair-command-p | |
95 | (viper-test-com-defun viper-charpair-command) | |
d5e52f99 | 96 | |
2f3eb3b6 | 97 | (defconst viper-movement-commands '(?b ?B ?e ?E ?f ?F ?G ?h ?H ?j ?k ?l |
d5e52f99 MK |
98 | ?H ?M ?L ?n ?t ?T ?w ?W ?$ ?% |
99 | ?^ ?( ?) ?- ?+ ?| ?{ ?} ?[ ?] ?' ?` | |
1e70790f | 100 | ?; ?, ?0 ?? ?/ ?\C-m ?\ |
2f3eb3b6 MK |
101 | space return |
102 | delete backspace | |
d5e52f99 MK |
103 | ) |
104 | "Movement commands") | |
2f3eb3b6 MK |
105 | ;; define viper-movement-command-p |
106 | (viper-test-com-defun viper-movement-command) | |
d5e52f99 | 107 | |
1e70790f | 108 | ;; Vi digit commands |
2f3eb3b6 | 109 | (defconst viper-digit-commands '(?1 ?2 ?3 ?4 ?5 ?6 ?7 ?8 ?9)) |
1e70790f | 110 | |
2f3eb3b6 MK |
111 | ;; define viper-digit-command-p |
112 | (viper-test-com-defun viper-digit-command) | |
d5e52f99 MK |
113 | |
114 | ;; Commands that can be repeated by . (dotted) | |
2f3eb3b6 MK |
115 | (defconst viper-dotable-commands '(?c ?d ?C ?s ?S ?D ?> ?<)) |
116 | ;; define viper-dotable-command-p | |
117 | (viper-test-com-defun viper-dotable-command) | |
d5e52f99 MK |
118 | |
119 | ;; Commands that can follow a # | |
2f3eb3b6 MK |
120 | (defconst viper-hash-commands '(?c ?C ?g ?q ?s)) |
121 | ;; define viper-hash-command-p | |
122 | (viper-test-com-defun viper-hash-command) | |
d5e52f99 MK |
123 | |
124 | ;; Commands that may have registers as prefix | |
2f3eb3b6 MK |
125 | (defconst viper-regsuffix-commands '(?d ?y ?Y ?D ?p ?P ?x ?X)) |
126 | ;; define viper-regsuffix-command-p | |
127 | (viper-test-com-defun viper-regsuffix-command) | |
128 | ||
129 | (defconst viper-vi-commands (append viper-movement-commands | |
130 | viper-digit-commands | |
131 | viper-dotable-commands | |
132 | viper-charpair-commands | |
133 | viper-hash-commands | |
134 | viper-prefix-commands | |
135 | viper-regsuffix-commands) | |
d5e52f99 | 136 | "The list of all commands in Vi-state.") |
2f3eb3b6 MK |
137 | ;; define viper-vi-command-p |
138 | (viper-test-com-defun viper-vi-command) | |
d5e52f99 MK |
139 | |
140 | \f | |
141 | ;;; CODE | |
142 | ||
143 | ;; sentinels | |
144 | ||
2f3eb3b6 MK |
145 | ;; Runs viper-after-change-functions inside after-change-functions |
146 | (defun viper-after-change-sentinel (beg end len) | |
147 | (let ((list viper-after-change-functions)) | |
d5e52f99 MK |
148 | (while list |
149 | (funcall (car list) beg end len) | |
150 | (setq list (cdr list))))) | |
151 | ||
2f3eb3b6 MK |
152 | ;; Runs viper-before-change-functions inside before-change-functions |
153 | (defun viper-before-change-sentinel (beg end) | |
154 | (let ((list viper-before-change-functions)) | |
d5e52f99 MK |
155 | (while list |
156 | (funcall (car list) beg end) | |
157 | (setq list (cdr list))))) | |
158 | ||
2f3eb3b6 MK |
159 | (defsubst viper-post-command-sentinel () |
160 | (run-hooks 'viper-post-command-hooks)) | |
d5e52f99 | 161 | |
2f3eb3b6 MK |
162 | (defsubst viper-pre-command-sentinel () |
163 | (run-hooks 'viper-pre-command-hooks)) | |
d5e52f99 MK |
164 | |
165 | ;; Needed so that Viper will be able to figure the last inserted | |
166 | ;; chunk of text with reasonable accuracy. | |
2f3eb3b6 MK |
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 | (if (eq viper-current-state 'insert-state) | |
d5e52f99 | 173 | (progn |
2f3eb3b6 MK |
174 | (or (stringp viper-saved-cursor-color) |
175 | (string= (viper-get-cursor-color) viper-insert-state-cursor-color) | |
176 | (setq viper-saved-cursor-color (viper-get-cursor-color))) | |
177 | (if (stringp viper-saved-cursor-color) | |
178 | (viper-change-cursor-color viper-insert-state-cursor-color)) | |
d5e52f99 MK |
179 | )) |
180 | (if (and (eq this-command 'dabbrev-expand) | |
2f3eb3b6 | 181 | (integerp viper-pre-command-point) |
96dffd25 MK |
182 | (markerp viper-insert-point) |
183 | (marker-position viper-insert-point) | |
2f3eb3b6 | 184 | (> viper-insert-point viper-pre-command-point)) |
96dffd25 | 185 | (viper-move-marker-locally viper-insert-point viper-pre-command-point)) |
d5e52f99 MK |
186 | ) |
187 | ||
2f3eb3b6 | 188 | (defsubst viper-insert-state-pre-command-sentinel () |
d5e52f99 | 189 | (or (memq this-command '(self-insert-command)) |
2f3eb3b6 | 190 | (memq (viper-event-key last-command-event) |
d5e52f99 MK |
191 | '(up down left right (meta f) (meta b) |
192 | (control n) (control p) (control f) (control b))) | |
2f3eb3b6 | 193 | (viper-restore-cursor-color-after-insert)) |
d5e52f99 | 194 | (if (and (eq this-command 'dabbrev-expand) |
2f3eb3b6 MK |
195 | (markerp viper-insert-point) |
196 | (marker-position viper-insert-point)) | |
197 | (setq viper-pre-command-point (marker-position viper-insert-point)))) | |
d5e52f99 | 198 | |
2f3eb3b6 | 199 | (defsubst viper-R-state-post-command-sentinel () |
d5e52f99 | 200 | ;; Restoring cursor color is needed despite |
2f3eb3b6 MK |
201 | ;; viper-replace-state-pre-command-sentinel: When you jump to another buffer |
202 | ;; in another frame, the pre-command hook won't change cursor color to | |
203 | ;; default in that other frame. So, if the second frame cursor was red and | |
204 | ;; we set the point outside the replacement region, then the cursor color | |
205 | ;; will remain red. Restoring the default, below, prevents this. | |
206 | (if (and (<= (viper-replace-start) (point)) | |
207 | (<= (point) (viper-replace-end))) | |
208 | (viper-change-cursor-color viper-replace-overlay-cursor-color) | |
209 | (viper-restore-cursor-color-after-replace) | |
d5e52f99 MK |
210 | )) |
211 | ||
212 | ;; to speed up, don't change cursor color before self-insert | |
213 | ;; and common move commands | |
2f3eb3b6 | 214 | (defsubst viper-replace-state-pre-command-sentinel () |
d5e52f99 | 215 | (or (memq this-command '(self-insert-command)) |
2f3eb3b6 | 216 | (memq (viper-event-key last-command-event) |
d5e52f99 MK |
217 | '(up down left right (meta f) (meta b) |
218 | (control n) (control p) (control f) (control b))) | |
2f3eb3b6 | 219 | (viper-restore-cursor-color-after-replace))) |
d5e52f99 | 220 | |
2f3eb3b6 | 221 | (defun viper-replace-state-post-command-sentinel () |
d5e52f99 | 222 | ;; Restoring cursor color is needed despite |
2f3eb3b6 | 223 | ;; viper-replace-state-pre-command-sentinel: When one jumps to another buffer |
d5e52f99 MK |
224 | ;; in another frame, the pre-command hook won't change cursor color to |
225 | ;; default in that other frame. So, if the second frame cursor was red and | |
226 | ;; we set the point outside the replacement region, then the cursor color | |
227 | ;; will remain red. Restoring the default, below, fixes this problem. | |
228 | ;; | |
229 | ;; We optimize for self-insert-command's here, since they either don't change | |
230 | ;; cursor color or, if they terminate replace mode, the color will be changed | |
2f3eb3b6 | 231 | ;; in viper-finish-change |
d5e52f99 | 232 | (or (memq this-command '(self-insert-command)) |
2f3eb3b6 | 233 | (viper-restore-cursor-color-after-replace)) |
d5e52f99 | 234 | (cond |
2f3eb3b6 | 235 | ((eq viper-current-state 'replace-state) |
d5e52f99 | 236 | ;; delete characters to compensate for inserted chars. |
2f3eb3b6 | 237 | (let ((replace-boundary (viper-replace-end))) |
d5e52f99 | 238 | (save-excursion |
2f3eb3b6 | 239 | (goto-char viper-last-posn-in-replace-region) |
34317da2 | 240 | (viper-trim-replace-chars-to-delete-if-necessary) |
2f3eb3b6 | 241 | (delete-char viper-replace-chars-to-delete) |
34317da2 | 242 | (setq viper-replace-chars-to-delete 0) |
d5e52f99 | 243 | ;; terminate replace mode if reached replace limit |
34317da2 MK |
244 | (if (= viper-last-posn-in-replace-region (viper-replace-end)) |
245 | (viper-finish-change))) | |
d5e52f99 | 246 | |
34317da2 MK |
247 | (if (viper-pos-within-region |
248 | (point) (viper-replace-start) replace-boundary) | |
d5e52f99 | 249 | (progn |
2f3eb3b6 MK |
250 | ;; the state may have changed in viper-finish-change above |
251 | (if (eq viper-current-state 'replace-state) | |
252 | (viper-change-cursor-color viper-replace-overlay-cursor-color)) | |
253 | (setq viper-last-posn-in-replace-region (point-marker)))) | |
d5e52f99 | 254 | )) |
34317da2 MK |
255 | ;; terminate replace mode if changed Viper states. |
256 | (t (viper-finish-change)))) | |
d5e52f99 MK |
257 | |
258 | ||
259 | ;; changing mode | |
260 | ||
261 | ;; Change state to NEW-STATE---either emacs-state, vi-state, or insert-state. | |
2f3eb3b6 MK |
262 | (defun viper-change-state (new-state) |
263 | ;; Keep viper-post/pre-command-hooks fresh. | |
264 | ;; We remove then add viper-post/pre-command-sentinel since it is very | |
265 | ;; desirable that viper-pre-command-sentinel is the last hook and | |
266 | ;; viper-post-command-sentinel is the first hook. | |
267 | (remove-hook 'post-command-hook 'viper-post-command-sentinel) | |
268 | (add-hook 'post-command-hook 'viper-post-command-sentinel) | |
269 | (remove-hook 'pre-command-hook 'viper-pre-command-sentinel) | |
270 | (add-hook 'pre-command-hook 'viper-pre-command-sentinel t) | |
d5e52f99 | 271 | ;; These hooks will be added back if switching to insert/replace mode |
2f3eb3b6 MK |
272 | (viper-remove-hook 'viper-post-command-hooks |
273 | 'viper-insert-state-post-command-sentinel) | |
274 | (viper-remove-hook 'viper-pre-command-hooks | |
275 | 'viper-insert-state-pre-command-sentinel) | |
276 | (setq viper-intermediate-command nil) | |
d5e52f99 | 277 | (cond ((eq new-state 'vi-state) |
2f3eb3b6 | 278 | (cond ((member viper-current-state '(insert-state replace-state)) |
d5e52f99 | 279 | |
2f3eb3b6 | 280 | ;; move viper-last-posn-while-in-insert-state |
d5e52f99 MK |
281 | ;; This is a normal hook that is executed in insert/replace |
282 | ;; states after each command. In Vi/Emacs state, it does | |
283 | ;; nothing. We need to execute it here to make sure that | |
284 | ;; the last posn was recorded when we hit ESC. | |
285 | ;; It may be left unrecorded if the last thing done in | |
286 | ;; insert/repl state was dabbrev-expansion or abbrev | |
287 | ;; expansion caused by hitting ESC | |
2f3eb3b6 | 288 | (viper-insert-state-post-command-sentinel) |
d5e52f99 MK |
289 | |
290 | (condition-case conds | |
291 | (progn | |
2f3eb3b6 MK |
292 | (viper-save-last-insertion |
293 | viper-insert-point | |
294 | viper-last-posn-while-in-insert-state) | |
295 | (if viper-began-as-replace | |
296 | (setq viper-began-as-replace nil) | |
d5e52f99 MK |
297 | ;; repeat insert commands if numerical arg > 1 |
298 | (save-excursion | |
2f3eb3b6 | 299 | (viper-repeat-insert-command)))) |
d5e52f99 | 300 | (error |
2f3eb3b6 | 301 | (viper-message-conditions conds))) |
d5e52f99 | 302 | |
2f3eb3b6 MK |
303 | (if (> (length viper-last-insertion) 0) |
304 | (viper-push-onto-ring viper-last-insertion | |
305 | 'viper-insertion-ring)) | |
d5e52f99 | 306 | |
34317da2 | 307 | (if viper-ex-style-editing |
d5e52f99 MK |
308 | (or (bolp) (backward-char 1)))) |
309 | )) | |
310 | ||
311 | ;; insert or replace | |
312 | ((memq new-state '(insert-state replace-state)) | |
2f3eb3b6 MK |
313 | (if (memq viper-current-state '(emacs-state vi-state)) |
314 | (viper-move-marker-locally 'viper-insert-point (point))) | |
315 | (viper-move-marker-locally | |
316 | 'viper-last-posn-while-in-insert-state (point)) | |
317 | (viper-add-hook 'viper-post-command-hooks | |
318 | 'viper-insert-state-post-command-sentinel t) | |
319 | (viper-add-hook 'viper-pre-command-hooks | |
320 | 'viper-insert-state-pre-command-sentinel t)) | |
d5e52f99 MK |
321 | ) ; outermost cond |
322 | ||
323 | ;; Nothing needs to be done to switch to emacs mode! Just set some | |
2f3eb3b6 | 324 | ;; variables, which is already done in viper-change-state-to-emacs! |
d5e52f99 | 325 | |
34317da2 MK |
326 | ;; ISO accents |
327 | ;; always turn off iso-accents-mode in vi-state, or else we won't be able to | |
328 | ;; use the keys `,',^ , as they will do accents instead of Vi actions. | |
329 | (cond ((eq new-state 'vi-state) (viper-set-iso-accents-mode nil));accents off | |
330 | (viper-automatic-iso-accents (viper-set-iso-accents-mode t));accents on | |
331 | (t (viper-set-iso-accents-mode nil))) | |
332 | ;; Always turn off quail mode in vi state | |
333 | (cond ((eq new-state 'vi-state) (viper-set-input-method nil)) ;intl input off | |
334 | (viper-special-input-method (viper-set-input-method t)) ;intl input on | |
335 | (t (viper-set-input-method nil))) | |
336 | ||
2f3eb3b6 | 337 | (setq viper-current-state new-state) |
34317da2 MK |
338 | |
339 | (viper-update-syntax-classes) | |
2f3eb3b6 MK |
340 | (viper-normalize-minor-mode-map-alist) |
341 | (viper-adjust-keys-for new-state) | |
342 | (viper-set-mode-vars-for new-state) | |
343 | (viper-refresh-mode-line) | |
d5e52f99 MK |
344 | ) |
345 | ||
346 | ||
347 | ||
2f3eb3b6 | 348 | (defun viper-adjust-keys-for (state) |
d5e52f99 MK |
349 | "Make necessary adjustments to keymaps before entering STATE." |
350 | (cond ((memq state '(insert-state replace-state)) | |
2f3eb3b6 | 351 | (if viper-auto-indent |
d5e52f99 | 352 | (progn |
2f3eb3b6 MK |
353 | (define-key viper-insert-basic-map "\C-m" 'viper-autoindent) |
354 | (if viper-want-emacs-keys-in-insert | |
d5e52f99 | 355 | ;; expert |
2f3eb3b6 | 356 | (define-key viper-insert-basic-map "\C-j" nil) |
d5e52f99 | 357 | ;; novice |
2f3eb3b6 MK |
358 | (define-key viper-insert-basic-map "\C-j" 'viper-autoindent))) |
359 | (define-key viper-insert-basic-map "\C-m" nil) | |
360 | (define-key viper-insert-basic-map "\C-j" nil)) | |
d5e52f99 | 361 | |
2f3eb3b6 MK |
362 | (setq viper-insert-diehard-minor-mode |
363 | (not viper-want-emacs-keys-in-insert)) | |
d5e52f99 | 364 | |
2f3eb3b6 | 365 | (if viper-want-ctl-h-help |
5ce05788 MK |
366 | (progn |
367 | (define-key viper-insert-basic-map "\C-h" 'help-command) | |
368 | (define-key viper-replace-map "\C-h" 'help-command)) | |
2f3eb3b6 | 369 | (define-key viper-insert-basic-map |
5ce05788 | 370 | "\C-h" 'viper-del-backward-char-in-insert) |
2f3eb3b6 | 371 | (define-key viper-replace-map |
5ce05788 MK |
372 | "\C-h" 'viper-del-backward-char-in-replace)) |
373 | ;; In XEmacs, C-h overrides backspace, so we make sure it doesn't. | |
374 | (define-key viper-insert-basic-map | |
375 | [backspace] 'viper-del-backward-char-in-insert) | |
376 | (define-key viper-replace-map | |
377 | [backspace] 'viper-del-backward-char-in-replace) | |
378 | ) ; end insert/replace case | |
d5e52f99 | 379 | (t ; Vi state |
2f3eb3b6 MK |
380 | (setq viper-vi-diehard-minor-mode (not viper-want-emacs-keys-in-vi)) |
381 | (if viper-want-ctl-h-help | |
5ce05788 MK |
382 | (define-key viper-vi-basic-map "\C-h" 'help-command) |
383 | (define-key viper-vi-basic-map "\C-h" 'viper-backward-char)) | |
384 | ;; In XEmacs, C-h overrides backspace, so we make sure it doesn't. | |
385 | (define-key viper-vi-basic-map [backspace] 'viper-backward-char)) | |
d5e52f99 MK |
386 | )) |
387 | ||
5ce05788 | 388 | |
d5e52f99 MK |
389 | ;; Normalizes minor-mode-map-alist by putting Viper keymaps first. |
390 | ;; This ensures that Viper bindings are in effect, regardless of which minor | |
391 | ;; modes were turned on by the user or by other packages. | |
2f3eb3b6 | 392 | (defun viper-normalize-minor-mode-map-alist () |
d5e52f99 | 393 | (setq minor-mode-map-alist |
2f3eb3b6 | 394 | (viper-append-filter-alist |
d5e52f99 | 395 | (list |
2f3eb3b6 MK |
396 | (cons 'viper-vi-intercept-minor-mode viper-vi-intercept-map) |
397 | (cons 'viper-vi-minibuffer-minor-mode viper-minibuffer-map) | |
398 | (cons 'viper-vi-local-user-minor-mode viper-vi-local-user-map) | |
399 | (cons 'viper-vi-kbd-minor-mode viper-vi-kbd-map) | |
400 | (cons 'viper-vi-global-user-minor-mode viper-vi-global-user-map) | |
401 | (cons 'viper-vi-state-modifier-minor-mode | |
d5e52f99 | 402 | (if (keymapp |
41497c90 MK |
403 | (cdr (assoc major-mode |
404 | viper-vi-state-modifier-alist))) | |
2f3eb3b6 MK |
405 | (cdr (assoc major-mode viper-vi-state-modifier-alist)) |
406 | viper-empty-keymap)) | |
407 | (cons 'viper-vi-diehard-minor-mode viper-vi-diehard-map) | |
408 | (cons 'viper-vi-basic-minor-mode viper-vi-basic-map) | |
41497c90 MK |
409 | (cons 'viper-insert-intercept-minor-mode |
410 | viper-insert-intercept-map) | |
2f3eb3b6 MK |
411 | (cons 'viper-replace-minor-mode viper-replace-map) |
412 | ;; viper-insert-minibuffer-minor-mode must come after | |
413 | ;; viper-replace-minor-mode | |
414 | (cons 'viper-insert-minibuffer-minor-mode | |
415 | viper-minibuffer-map) | |
416 | (cons 'viper-insert-local-user-minor-mode | |
417 | viper-insert-local-user-map) | |
418 | (cons 'viper-insert-kbd-minor-mode viper-insert-kbd-map) | |
419 | (cons 'viper-insert-global-user-minor-mode | |
420 | viper-insert-global-user-map) | |
421 | (cons 'viper-insert-state-modifier-minor-mode | |
d5e52f99 | 422 | (if (keymapp |
41497c90 MK |
423 | (cdr (assoc major-mode |
424 | viper-insert-state-modifier-alist))) | |
425 | (cdr (assoc major-mode | |
426 | viper-insert-state-modifier-alist)) | |
2f3eb3b6 MK |
427 | viper-empty-keymap)) |
428 | (cons 'viper-insert-diehard-minor-mode viper-insert-diehard-map) | |
429 | (cons 'viper-insert-basic-minor-mode viper-insert-basic-map) | |
430 | (cons 'viper-emacs-intercept-minor-mode | |
431 | viper-emacs-intercept-map) | |
432 | (cons 'viper-emacs-local-user-minor-mode | |
433 | viper-emacs-local-user-map) | |
434 | (cons 'viper-emacs-kbd-minor-mode viper-emacs-kbd-map) | |
435 | (cons 'viper-emacs-global-user-minor-mode | |
436 | viper-emacs-global-user-map) | |
437 | (cons 'viper-emacs-state-modifier-minor-mode | |
d5e52f99 MK |
438 | (if (keymapp |
439 | (cdr | |
2f3eb3b6 | 440 | (assoc major-mode viper-emacs-state-modifier-alist))) |
d5e52f99 | 441 | (cdr |
2f3eb3b6 MK |
442 | (assoc major-mode viper-emacs-state-modifier-alist)) |
443 | viper-empty-keymap)) | |
d5e52f99 MK |
444 | ) |
445 | minor-mode-map-alist))) | |
446 | ||
447 | ||
448 | ||
449 | ||
450 | \f | |
451 | ;; Viper mode-changing commands and utilities | |
452 | ||
453 | ;; Modifies mode-line-buffer-identification. | |
2f3eb3b6 MK |
454 | (defun viper-refresh-mode-line () |
455 | (setq viper-mode-string | |
456 | (cond ((eq viper-current-state 'emacs-state) viper-emacs-state-id) | |
457 | ((eq viper-current-state 'vi-state) viper-vi-state-id) | |
458 | ((eq viper-current-state 'replace-state) viper-replace-state-id) | |
459 | ((eq viper-current-state 'insert-state) viper-insert-state-id))) | |
d5e52f99 MK |
460 | |
461 | ;; Sets Viper mode string in global-mode-string | |
462 | (force-mode-line-update)) | |
d5e52f99 | 463 | |
d5e52f99 MK |
464 | |
465 | ;; Switch from Insert state to Vi state. | |
2f3eb3b6 | 466 | (defun viper-exit-insert-state () |
d5e52f99 | 467 | (interactive) |
2f3eb3b6 | 468 | (viper-change-state-to-vi)) |
d5e52f99 | 469 | |
2f3eb3b6 | 470 | (defun viper-set-mode-vars-for (state) |
d5e52f99 MK |
471 | "Sets Viper minor mode variables to put Viper's state STATE in effect." |
472 | ||
473 | ;; Emacs state | |
2f3eb3b6 MK |
474 | (setq viper-vi-minibuffer-minor-mode nil |
475 | viper-insert-minibuffer-minor-mode nil | |
476 | viper-vi-intercept-minor-mode nil | |
477 | viper-insert-intercept-minor-mode nil | |
d5e52f99 | 478 | |
2f3eb3b6 MK |
479 | viper-vi-local-user-minor-mode nil |
480 | viper-vi-kbd-minor-mode nil | |
481 | viper-vi-global-user-minor-mode nil | |
482 | viper-vi-state-modifier-minor-mode nil | |
483 | viper-vi-diehard-minor-mode nil | |
484 | viper-vi-basic-minor-mode nil | |
d5e52f99 | 485 | |
2f3eb3b6 | 486 | viper-replace-minor-mode nil |
d5e52f99 | 487 | |
2f3eb3b6 MK |
488 | viper-insert-local-user-minor-mode nil |
489 | viper-insert-kbd-minor-mode nil | |
490 | viper-insert-global-user-minor-mode nil | |
491 | viper-insert-state-modifier-minor-mode nil | |
492 | viper-insert-diehard-minor-mode nil | |
493 | viper-insert-basic-minor-mode nil | |
494 | viper-emacs-intercept-minor-mode t | |
495 | viper-emacs-local-user-minor-mode t | |
496 | viper-emacs-kbd-minor-mode (not (viper-is-in-minibuffer)) | |
497 | viper-emacs-global-user-minor-mode t | |
498 | viper-emacs-state-modifier-minor-mode t | |
d5e52f99 MK |
499 | ) |
500 | ||
501 | ;; Vi state | |
502 | (if (eq state 'vi-state) ; adjust for vi-state | |
503 | (setq | |
2f3eb3b6 MK |
504 | viper-vi-intercept-minor-mode t |
505 | viper-vi-minibuffer-minor-mode (viper-is-in-minibuffer) | |
506 | viper-vi-local-user-minor-mode t | |
507 | viper-vi-kbd-minor-mode (not (viper-is-in-minibuffer)) | |
508 | viper-vi-global-user-minor-mode t | |
509 | viper-vi-state-modifier-minor-mode t | |
d5e52f99 MK |
510 | ;; don't let the diehard keymap block command completion |
511 | ;; and other things in the minibuffer | |
2f3eb3b6 MK |
512 | viper-vi-diehard-minor-mode (not |
513 | (or viper-want-emacs-keys-in-vi | |
514 | (viper-is-in-minibuffer))) | |
515 | viper-vi-basic-minor-mode t | |
516 | viper-emacs-intercept-minor-mode nil | |
517 | viper-emacs-local-user-minor-mode nil | |
518 | viper-emacs-kbd-minor-mode nil | |
519 | viper-emacs-global-user-minor-mode nil | |
520 | viper-emacs-state-modifier-minor-mode nil | |
d5e52f99 MK |
521 | )) |
522 | ||
523 | ;; Insert and Replace states | |
524 | (if (member state '(insert-state replace-state)) | |
525 | (setq | |
2f3eb3b6 MK |
526 | viper-insert-intercept-minor-mode t |
527 | viper-replace-minor-mode (eq state 'replace-state) | |
528 | viper-insert-minibuffer-minor-mode (viper-is-in-minibuffer) | |
529 | viper-insert-local-user-minor-mode t | |
530 | viper-insert-kbd-minor-mode (not (viper-is-in-minibuffer)) | |
531 | viper-insert-global-user-minor-mode t | |
532 | viper-insert-state-modifier-minor-mode t | |
d5e52f99 MK |
533 | ;; don't let the diehard keymap block command completion |
534 | ;; and other things in the minibuffer | |
2f3eb3b6 MK |
535 | viper-insert-diehard-minor-mode (not |
536 | (or | |
537 | viper-want-emacs-keys-in-insert | |
538 | (viper-is-in-minibuffer))) | |
539 | viper-insert-basic-minor-mode t | |
540 | viper-emacs-intercept-minor-mode nil | |
541 | viper-emacs-local-user-minor-mode nil | |
542 | viper-emacs-kbd-minor-mode nil | |
543 | viper-emacs-global-user-minor-mode nil | |
544 | viper-emacs-state-modifier-minor-mode nil | |
d5e52f99 MK |
545 | )) |
546 | ||
547 | ;; minibuffer faces | |
2f3eb3b6 MK |
548 | (if (viper-has-face-support-p) |
549 | (setq viper-minibuffer-current-face | |
550 | (cond ((eq state 'emacs-state) viper-minibuffer-emacs-face) | |
551 | ((eq state 'vi-state) viper-minibuffer-vi-face) | |
d5e52f99 | 552 | ((memq state '(insert-state replace-state)) |
2f3eb3b6 | 553 | viper-minibuffer-insert-face)))) |
d5e52f99 | 554 | |
2f3eb3b6 MK |
555 | (if (viper-is-in-minibuffer) |
556 | (viper-set-minibuffer-overlay)) | |
d5e52f99 MK |
557 | ) |
558 | ||
559 | ;; This also takes care of the annoying incomplete lines in files. | |
560 | ;; Also, this fixes `undo' to work vi-style for complex commands. | |
2f3eb3b6 | 561 | (defun viper-change-state-to-vi () |
d5e52f99 MK |
562 | "Change Viper state to Vi." |
563 | (interactive) | |
2f3eb3b6 | 564 | (if (and viper-first-time (not (viper-is-in-minibuffer))) |
d5e52f99 MK |
565 | (viper-mode) |
566 | (if overwrite-mode (overwrite-mode nil)) | |
567 | (if abbrev-mode (expand-abbrev)) | |
568 | (if (and auto-fill-function (> (current-column) fill-column)) | |
569 | (funcall auto-fill-function)) | |
570 | ;; don't leave whitespace lines around | |
571 | (if (and (memq last-command | |
2f3eb3b6 MK |
572 | '(viper-autoindent |
573 | viper-open-line viper-Open-line | |
574 | viper-replace-state-exit-cmd)) | |
575 | (viper-over-whitespace-line)) | |
d5e52f99 | 576 | (indent-to-left-margin)) |
2f3eb3b6 | 577 | (viper-add-newline-at-eob-if-necessary) |
34317da2 | 578 | (viper-adjust-undo) |
2f3eb3b6 | 579 | (viper-change-state 'vi-state) |
d5e52f99 | 580 | |
2f3eb3b6 | 581 | (viper-restore-cursor-color-after-insert) |
d5e52f99 | 582 | |
34317da2 | 583 | ;; Protect against user errors in hooks |
d5e52f99 | 584 | (condition-case conds |
2f3eb3b6 | 585 | (run-hooks 'viper-vi-state-hook) |
d5e52f99 | 586 | (error |
2f3eb3b6 | 587 | (viper-message-conditions conds))))) |
d5e52f99 | 588 | |
2f3eb3b6 | 589 | (defun viper-change-state-to-insert () |
d5e52f99 MK |
590 | "Change Viper state to Insert." |
591 | (interactive) | |
2f3eb3b6 | 592 | (viper-change-state 'insert-state) |
d5e52f99 | 593 | |
2f3eb3b6 MK |
594 | (or (stringp viper-saved-cursor-color) |
595 | (string= (viper-get-cursor-color) viper-insert-state-cursor-color) | |
596 | (setq viper-saved-cursor-color (viper-get-cursor-color))) | |
597 | ;; Commented out, because if viper-change-state-to-insert is executed | |
d5e52f99 MK |
598 | ;; non-interactively then the old cursor color may get lost. Same old Emacs |
599 | ;; bug related to local variables? | |
2f3eb3b6 MK |
600 | ;;;(if (stringp viper-saved-cursor-color) |
601 | ;;; (viper-change-cursor-color viper-insert-state-cursor-color)) | |
34317da2 MK |
602 | |
603 | ;; Protect against user errors in hooks | |
d5e52f99 | 604 | (condition-case conds |
2f3eb3b6 | 605 | (run-hooks 'viper-insert-state-hook) |
d5e52f99 | 606 | (error |
2f3eb3b6 | 607 | (viper-message-conditions conds)))) |
d5e52f99 | 608 | |
2f3eb3b6 MK |
609 | (defsubst viper-downgrade-to-insert () |
610 | (setq viper-current-state 'insert-state | |
41497c90 | 611 | viper-replace-minor-mode nil)) |
d5e52f99 MK |
612 | |
613 | ||
614 | ||
615 | ;; Change to replace state. When the end of replacement region is reached, | |
616 | ;; replace state changes to insert state. | |
2f3eb3b6 MK |
617 | (defun viper-change-state-to-replace (&optional non-R-cmd) |
618 | (viper-change-state 'replace-state) | |
d5e52f99 MK |
619 | ;; Run insert-state-hook |
620 | (condition-case conds | |
2f3eb3b6 | 621 | (run-hooks 'viper-insert-state-hook 'viper-replace-state-hook) |
d5e52f99 | 622 | (error |
2f3eb3b6 | 623 | (viper-message-conditions conds))) |
d5e52f99 MK |
624 | |
625 | (if non-R-cmd | |
2f3eb3b6 | 626 | (viper-start-replace) |
d5e52f99 | 627 | ;; 'R' is implemented using Emacs's overwrite-mode |
2f3eb3b6 | 628 | (viper-start-R-mode)) |
d5e52f99 MK |
629 | ) |
630 | ||
631 | ||
2f3eb3b6 | 632 | (defun viper-change-state-to-emacs () |
d5e52f99 MK |
633 | "Change Viper state to Emacs." |
634 | (interactive) | |
2f3eb3b6 | 635 | (viper-change-state 'emacs-state) |
d5e52f99 | 636 | |
34317da2 | 637 | ;; Protect agains user errors in hooks |
d5e52f99 | 638 | (condition-case conds |
2f3eb3b6 | 639 | (run-hooks 'viper-emacs-state-hook) |
d5e52f99 | 640 | (error |
2f3eb3b6 | 641 | (viper-message-conditions conds)))) |
d5e52f99 MK |
642 | |
643 | ;; escape to emacs mode termporarily | |
2f3eb3b6 | 644 | (defun viper-escape-to-emacs (arg &optional events) |
d5e52f99 MK |
645 | "Escape to Emacs state from Vi state for one Emacs command. |
646 | ARG is used as the prefix value for the executed command. If | |
647 | EVENTS is a list of events, which become the beginning of the command." | |
648 | (interactive "P") | |
649 | (if (= last-command-char ?\\) | |
650 | (message "Switched to EMACS state for the next command...")) | |
2f3eb3b6 | 651 | (viper-escape-to-state arg events 'emacs-state)) |
d5e52f99 MK |
652 | |
653 | ;; escape to Vi mode termporarily | |
2f3eb3b6 | 654 | (defun viper-escape-to-vi (arg) |
d5e52f99 MK |
655 | "Escape from Emacs state to Vi state for one Vi 1-character command. |
656 | If the Vi command that the user types has a prefix argument, e.g., `d2w', then | |
657 | Vi's prefix argument will be used. Otherwise, the prefix argument passed to | |
2f3eb3b6 | 658 | `viper-escape-to-vi' is used." |
d5e52f99 MK |
659 | (interactive "P") |
660 | (message "Switched to VI state for the next command...") | |
2f3eb3b6 | 661 | (viper-escape-to-state arg nil 'vi-state)) |
d5e52f99 MK |
662 | |
663 | ;; Escape to STATE mode for one Emacs command. | |
2f3eb3b6 | 664 | (defun viper-escape-to-state (arg events state) |
d5e52f99 MK |
665 | ;;(let (com key prefix-arg) |
666 | (let (com key) | |
667 | ;; this temporarily turns off Viper's minor mode keymaps | |
2f3eb3b6 MK |
668 | (viper-set-mode-vars-for state) |
669 | (viper-normalize-minor-mode-map-alist) | |
670 | (if events (viper-set-unread-command-events events)) | |
d5e52f99 MK |
671 | |
672 | ;; protect against keyboard quit and other errors | |
673 | (condition-case nil | |
2f3eb3b6 MK |
674 | (let (viper-vi-kbd-minor-mode |
675 | viper-insert-kbd-minor-mode | |
676 | viper-emacs-kbd-minor-mode) | |
d5e52f99 MK |
677 | (unwind-protect |
678 | (progn | |
679 | (setq com (key-binding (setq key | |
2f3eb3b6 | 680 | (if viper-xemacs-p |
d5e52f99 MK |
681 | (read-key-sequence nil) |
682 | (read-key-sequence nil t))))) | |
683 | ;; In case of binding indirection--chase definitions. | |
684 | ;; Have to do it here because we execute this command under | |
685 | ;; different keymaps, so command-execute may not do the | |
686 | ;; right thing there | |
687 | (while (vectorp com) (setq com (key-binding com)))) | |
688 | nil) | |
689 | ;; Execute command com in the original Viper state, not in state | |
690 | ;; `state'. Otherwise, if we switch buffers while executing the | |
691 | ;; escaped to command, Viper's mode vars will remain those of | |
692 | ;; `state'. When we return to the orig buffer, the bindings will be | |
693 | ;; screwed up. | |
2f3eb3b6 | 694 | (viper-set-mode-vars-for viper-current-state) |
d5e52f99 MK |
695 | |
696 | ;; this-command, last-command-char, last-command-event | |
697 | (setq this-command com) | |
2f3eb3b6 MK |
698 | (if viper-xemacs-p ; XEmacs represents key sequences as vectors |
699 | (setq last-command-event | |
700 | (viper-copy-event (viper-seq-last-elt key)) | |
d5e52f99 MK |
701 | last-command-char (event-to-character last-command-event)) |
702 | ;; Emacs represents them as sequences (str or vec) | |
2f3eb3b6 MK |
703 | (setq last-command-event |
704 | (viper-copy-event (viper-seq-last-elt key)) | |
d5e52f99 MK |
705 | last-command-char last-command-event)) |
706 | ||
707 | (if (commandp com) | |
708 | (progn | |
709 | (setq prefix-arg (or prefix-arg arg)) | |
710 | (command-execute com))) | |
711 | ) | |
712 | (quit (ding)) | |
713 | (error (beep 1)))) | |
714 | ;; set state in the new buffer | |
2f3eb3b6 | 715 | (viper-set-mode-vars-for viper-current-state)) |
d5e52f99 | 716 | |
2f3eb3b6 | 717 | (defun viper-exec-form-in-vi (form) |
d5e52f99 MK |
718 | "Execute FORM in Vi state, regardless of the Ccurrent Vi state." |
719 | (let ((buff (current-buffer)) | |
720 | result) | |
2f3eb3b6 | 721 | (viper-set-mode-vars-for 'vi-state) |
d5e52f99 MK |
722 | |
723 | (condition-case nil | |
2f3eb3b6 MK |
724 | (let (viper-vi-kbd-minor-mode) ; execute without kbd macros |
725 | (setq result (eval form)) | |
726 | ) | |
d5e52f99 MK |
727 | (error |
728 | (signal 'quit nil))) | |
729 | ||
730 | (if (not (equal buff (current-buffer))) ; cmd switched buffer | |
731 | (save-excursion | |
732 | (set-buffer buff) | |
2f3eb3b6 MK |
733 | (viper-set-mode-vars-for viper-current-state))) |
734 | (viper-set-mode-vars-for viper-current-state) | |
d5e52f99 MK |
735 | result)) |
736 | ||
2f3eb3b6 | 737 | (defun viper-exec-form-in-emacs (form) |
d5e52f99 | 738 | "Execute FORM in Emacs, temporarily disabling Viper's minor modes. |
2f3eb3b6 | 739 | Similar to viper-escape-to-emacs, but accepts forms rather than keystrokes." |
d5e52f99 MK |
740 | (let ((buff (current-buffer)) |
741 | result) | |
2f3eb3b6 | 742 | (viper-set-mode-vars-for 'emacs-state) |
d5e52f99 MK |
743 | (setq result (eval form)) |
744 | (if (not (equal buff (current-buffer))) ; cmd switched buffer | |
745 | (save-excursion | |
746 | (set-buffer buff) | |
2f3eb3b6 MK |
747 | (viper-set-mode-vars-for viper-current-state))) |
748 | (viper-set-mode-vars-for viper-current-state) | |
d5e52f99 MK |
749 | result)) |
750 | ||
751 | ||
752 | ;; This is needed because minor modes sometimes override essential Viper | |
753 | ;; bindings. By letting Viper know which files these modes are in, it will | |
754 | ;; arrange to reorganize minor-mode-map-alist so that things will work right. | |
2f3eb3b6 | 755 | (defun viper-harness-minor-mode (load-file) |
d5e52f99 MK |
756 | "Familiarize Viper with a minor mode defined in LOAD_FILE. |
757 | Minor modes that have their own keymaps may overshadow Viper keymaps. | |
758 | This function is designed to make Viper aware of the packages that define | |
759 | such minor modes. | |
760 | Usage: | |
2f3eb3b6 | 761 | (viper-harness-minor-mode load-file) |
d5e52f99 MK |
762 | |
763 | LOAD-FILE is a name of the file where the specific minor mode is defined. | |
764 | Suffixes such as .el or .elc should be stripped." | |
765 | ||
766 | (interactive "sEnter name of the load file: ") | |
767 | ||
2f3eb3b6 | 768 | (eval-after-load load-file '(viper-normalize-minor-mode-map-alist)) |
d5e52f99 MK |
769 | |
770 | ;; Change the default for minor-mode-map-alist each time a harnessed minor | |
771 | ;; mode adds its own keymap to the a-list. | |
2f3eb3b6 | 772 | (eval-after-load |
d5e52f99 MK |
773 | load-file '(setq-default minor-mode-map-alist minor-mode-map-alist)) |
774 | ) | |
775 | ||
776 | ||
2f3eb3b6 | 777 | (defun viper-ESC (arg) |
d5e52f99 | 778 | "Emulate ESC key in Emacs. |
2f3eb3b6 MK |
779 | Prevents multiple escape keystrokes if viper-no-multiple-ESC is true. |
780 | If viper-no-multiple-ESC is 'twice double ESC would ding in vi-state. | |
d5e52f99 MK |
781 | Other ESC sequences are emulated via the current Emacs's major mode |
782 | keymap. This is more convenient on TTYs, since this won't block | |
783 | function keys such as up,down, etc. ESC will also will also work as | |
2f3eb3b6 | 784 | a Meta key in this case. When viper-no-multiple-ESC is nil, ESC functions |
d5e52f99 MK |
785 | as a Meta key and any number of multiple escapes is allowed." |
786 | (interactive "P") | |
787 | (let (char) | |
2f3eb3b6 MK |
788 | (cond ((and (not viper-no-multiple-ESC) (eq viper-current-state 'vi-state)) |
789 | (setq char (viper-read-char-exclusive)) | |
790 | (viper-escape-to-emacs arg (list ?\e char) )) | |
791 | ((and (eq viper-no-multiple-ESC 'twice) | |
792 | (eq viper-current-state 'vi-state)) | |
793 | (setq char (viper-read-char-exclusive)) | |
794 | (if (= char (string-to-char viper-ESC-key)) | |
d5e52f99 | 795 | (ding) |
2f3eb3b6 | 796 | (viper-escape-to-emacs arg (list ?\e char) ))) |
d5e52f99 MK |
797 | (t (ding))) |
798 | )) | |
799 | ||
2f3eb3b6 | 800 | (defun viper-alternate-Meta-key (arg) |
d5e52f99 MK |
801 | "Simulate Emacs Meta key." |
802 | (interactive "P") | |
803 | (sit-for 1) (message "ESC-") | |
2f3eb3b6 | 804 | (viper-escape-to-emacs arg '(?\e))) |
d5e52f99 | 805 | |
2f3eb3b6 MK |
806 | (defun viper-toggle-key-action () |
807 | "Action bound to `viper-toggle-key'." | |
d5e52f99 | 808 | (interactive) |
2f3eb3b6 MK |
809 | (if (and (< viper-expert-level 2) (equal viper-toggle-key "\C-z")) |
810 | (if (viper-window-display-p) | |
811 | (viper-iconify) | |
d5e52f99 | 812 | (suspend-emacs)) |
2f3eb3b6 | 813 | (viper-change-state-to-emacs))) |
d5e52f99 MK |
814 | |
815 | \f | |
816 | ;; Intercept ESC sequences on dumb terminals. | |
817 | ;; Based on the idea contributed by Marcelino Veiga Tuimil <mveiga@dit.upm.es> | |
818 | ||
819 | ;; Check if last key was ESC and if so try to reread it as a function key. | |
820 | ;; But only if there are characters to read during a very short time. | |
821 | ;; Returns the last event, if any. | |
2f3eb3b6 | 822 | (defun viper-envelop-ESC-key () |
d5e52f99 MK |
823 | (let ((event last-input-event) |
824 | (keyseq [nil]) | |
825 | inhibit-quit) | |
2f3eb3b6 | 826 | (if (viper-ESC-event-p event) |
d5e52f99 | 827 | (progn |
2f3eb3b6 | 828 | (if (viper-fast-keysequence-p) |
d5e52f99 MK |
829 | (progn |
830 | (let (minor-mode-map-alist) | |
2f3eb3b6 | 831 | (viper-set-unread-command-events event) |
d5e52f99 MK |
832 | (setq keyseq |
833 | (funcall | |
834 | (ad-get-orig-definition 'read-key-sequence) nil)) | |
835 | ) ; let | |
836 | ;; If keyseq translates into something that still has ESC | |
837 | ;; at the beginning, separate ESC from the rest of the seq. | |
838 | ;; In XEmacs we check for events that are keypress meta-key | |
839 | ;; and convert them into [escape key] | |
840 | ;; | |
841 | ;; This is needed for the following reason: | |
842 | ;; If ESC is the first symbol, we interpret it as if the | |
843 | ;; user typed ESC and then quickly some other symbols. | |
844 | ;; If ESC is not the first one, then the key sequence | |
845 | ;; entered was apparently translated into a function key or | |
846 | ;; something (e.g., one may have | |
847 | ;; (define-key function-key-map "\e[192z" [f11]) | |
848 | ;; which would translate the escape-sequence generated by | |
849 | ;; f11 in an xterm window into the symbolic key f11. | |
850 | ;; | |
851 | ;; If `first-key' is not an ESC event, we make it into the | |
852 | ;; last-command-event in order to pretend that this key was | |
853 | ;; pressed. This is needed to allow arrow keys to be bound to | |
2f3eb3b6 MK |
854 | ;; macros. Otherwise, viper-exec-mapped-kbd-macro will think |
855 | ;; that the last event was ESC and so it'll execute whatever is | |
d5e52f99 MK |
856 | ;; bound to ESC. (Viper macros can't be bound to |
857 | ;; ESC-sequences). | |
858 | (let* ((first-key (elt keyseq 0)) | |
859 | (key-mod (event-modifiers first-key))) | |
2f3eb3b6 | 860 | (cond ((viper-ESC-event-p first-key) |
d5e52f99 MK |
861 | ;; put keys following ESC on the unread list |
862 | ;; and return ESC as the key-sequence | |
2f3eb3b6 | 863 | (viper-set-unread-command-events (subseq keyseq 1)) |
d5e52f99 | 864 | (setq last-input-event event |
2f3eb3b6 | 865 | keyseq (if viper-emacs-p |
d5e52f99 MK |
866 | "\e" |
867 | (vector (character-to-event ?\e))))) | |
2f3eb3b6 | 868 | ((and viper-xemacs-p |
d5e52f99 MK |
869 | (key-press-event-p first-key) |
870 | (equal '(meta) key-mod)) | |
2f3eb3b6 | 871 | (viper-set-unread-command-events |
d5e52f99 MK |
872 | (vconcat (vector |
873 | (character-to-event (event-key first-key))) | |
874 | (subseq keyseq 1))) | |
875 | (setq last-input-event event | |
876 | keyseq (vector (character-to-event ?\e)))) | |
877 | ((eventp first-key) | |
2f3eb3b6 MK |
878 | (setq last-command-event |
879 | (viper-copy-event first-key))) | |
d5e52f99 MK |
880 | )) |
881 | ) ; end progn | |
882 | ||
883 | ;; this is escape event with nothing after it | |
884 | ;; put in unread-command-event and then re-read | |
2f3eb3b6 | 885 | (viper-set-unread-command-events event) |
d5e52f99 MK |
886 | (setq keyseq |
887 | (funcall (ad-get-orig-definition 'read-key-sequence) nil)) | |
888 | )) | |
889 | ;; not an escape event | |
890 | (setq keyseq (vector event))) | |
891 | keyseq)) | |
892 | ||
893 | ||
d5e52f99 MK |
894 | |
895 | ;; Listen to ESC key. | |
896 | ;; If a sequence of keys starting with ESC is issued with very short delays, | |
897 | ;; interpret these keys in Emacs mode, so ESC won't be interpreted as a Vi key. | |
2f3eb3b6 | 898 | (defun viper-intercept-ESC-key () |
d5e52f99 MK |
899 | "Function that implements ESC key in Viper emulation of Vi." |
900 | (interactive) | |
2f3eb3b6 | 901 | (let ((cmd (or (key-binding (viper-envelop-ESC-key)) |
d5e52f99 MK |
902 | '(lambda () (interactive) (error ""))))) |
903 | ||
904 | ;; call the actual function to execute ESC (if no other symbols followed) | |
905 | ;; or the key bound to the ESC sequence (if the sequence was issued | |
906 | ;; with very short delay between characters. | |
2f3eb3b6 | 907 | (if (eq cmd 'viper-intercept-ESC-key) |
d5e52f99 | 908 | (setq cmd |
2f3eb3b6 MK |
909 | (cond ((eq viper-current-state 'vi-state) |
910 | 'viper-ESC) | |
911 | ((eq viper-current-state 'insert-state) | |
912 | 'viper-exit-insert-state) | |
913 | ((eq viper-current-state 'replace-state) | |
914 | 'viper-replace-state-exit-cmd) | |
915 | (t 'viper-change-state-to-vi) | |
d5e52f99 MK |
916 | ))) |
917 | (call-interactively cmd))) | |
918 | ||
919 | ||
920 | ||
921 | \f | |
922 | ;; prefix argument for Vi mode | |
923 | ||
924 | ;; In Vi mode, prefix argument is a dotted pair (NUM . COM) where NUM | |
925 | ;; represents the numeric value of the prefix argument and COM represents | |
926 | ;; command prefix such as "c", "d", "m" and "y". | |
927 | ||
928 | ;; Get value part of prefix-argument ARG. | |
2f3eb3b6 | 929 | (defsubst viper-p-val (arg) |
d5e52f99 MK |
930 | (cond ((null arg) 1) |
931 | ((consp arg) | |
932 | (if (or (null (car arg)) (equal (car arg) '(nil))) | |
933 | 1 (car arg))) | |
934 | (t arg))) | |
935 | ||
936 | ;; Get raw value part of prefix-argument ARG. | |
2f3eb3b6 | 937 | (defsubst viper-P-val (arg) |
d5e52f99 MK |
938 | (cond ((consp arg) (car arg)) |
939 | (t arg))) | |
940 | ||
941 | ;; Get com part of prefix-argument ARG. | |
2f3eb3b6 | 942 | (defsubst viper-getcom (arg) |
d5e52f99 MK |
943 | (cond ((null arg) nil) |
944 | ((consp arg) (cdr arg)) | |
945 | (t nil))) | |
946 | ||
947 | ;; Get com part of prefix-argument ARG and modify it. | |
2f3eb3b6 MK |
948 | (defun viper-getCom (arg) |
949 | (let ((com (viper-getcom arg))) | |
950 | (cond ((equal com ?c) ?c) | |
951 | ;; Previously, ?c was being converted to ?C, but this prevented | |
952 | ;; multiline replace regions. | |
953 | ;;((equal com ?c) ?C) | |
d5e52f99 MK |
954 | ((equal com ?d) ?D) |
955 | ((equal com ?y) ?Y) | |
956 | (t com)))) | |
957 | ||
958 | ||
959 | ;; Compute numeric prefix arg value. | |
960 | ;; Invoked by EVENT. COM is the command part obtained so far. | |
2f3eb3b6 MK |
961 | (defun viper-prefix-arg-value (event com) |
962 | (let ((viper-intermediate-command 'viper-digit-argument) | |
963 | value func) | |
d5e52f99 | 964 | ;; read while number |
2f3eb3b6 | 965 | (while (and (viper-characterp event) (>= event ?0) (<= event ?9)) |
d5e52f99 | 966 | (setq value (+ (* (if (integerp value) value 0) 10) (- event ?0))) |
2f3eb3b6 | 967 | (setq event (viper-read-event-convert-to-char))) |
d5e52f99 MK |
968 | |
969 | (setq prefix-arg value) | |
970 | (if com (setq prefix-arg (cons prefix-arg com))) | |
971 | (while (eq event ?U) | |
2f3eb3b6 MK |
972 | (viper-describe-arg prefix-arg) |
973 | (setq event (viper-read-event-convert-to-char))) | |
d5e52f99 | 974 | |
2f3eb3b6 | 975 | (if (or com (and (not (eq viper-current-state 'vi-state)) |
d5e52f99 | 976 | ;; make sure it is a Vi command |
2f3eb3b6 | 977 | (viper-characterp event) (viper-vi-command-p event) |
d5e52f99 MK |
978 | )) |
979 | ;; If appears to be one of the vi commands, | |
980 | ;; then execute it with funcall and clear prefix-arg in order to not | |
981 | ;; confuse subsequent commands | |
982 | (progn | |
983 | ;; last-command-char is the char we want emacs to think was typed | |
2f3eb3b6 MK |
984 | ;; last. If com is not nil, the viper-digit-argument command was |
985 | ;; called from within viper-prefix-arg command, such as `d', `w', | |
986 | ;; etc., i.e., the user typed, say, d2. In this case, `com' would be | |
987 | ;; `d', `w', etc. If viper-digit-argument was invoked by | |
988 | ;; viper-escape-to-vi (which is indicated by the fact that the | |
989 | ;; current state is not vi-state), then `event' represents the vi | |
990 | ;; command to be executed (e.g., `d', `w', etc). Again, | |
991 | ;; last-command-char must make emacs believe that this is the command | |
992 | ;; we typed. | |
993 | (cond ((eq event 'return) (setq event ?\C-m)) | |
994 | ((eq event 'delete) (setq event ?\C-?)) | |
995 | ((eq event 'backspace) (setq event ?\C-h)) | |
996 | ((eq event 'space) (setq event ?\ ))) | |
d5e52f99 | 997 | (setq last-command-char (or com event)) |
2f3eb3b6 | 998 | (setq func (viper-exec-form-in-vi |
d5e52f99 MK |
999 | (` (key-binding (char-to-string (, event)))))) |
1000 | (funcall func prefix-arg) | |
1001 | (setq prefix-arg nil)) | |
1002 | ;; some other command -- let emacs do it in its own way | |
2f3eb3b6 | 1003 | (viper-set-unread-command-events event)) |
d5e52f99 MK |
1004 | )) |
1005 | ||
1006 | ||
1007 | ;; Vi operator as prefix argument." | |
2f3eb3b6 | 1008 | (defun viper-prefix-arg-com (char value com) |
d5e52f99 | 1009 | (let ((cont t) |
c81246f3 MK |
1010 | cmd-info |
1011 | cmd-to-exec-at-end) | |
d5e52f99 MK |
1012 | (while (and cont |
1013 | (memq char | |
1014 | (list ?c ?d ?y ?! ?< ?> ?= ?# ?r ?R ?\" | |
2f3eb3b6 | 1015 | viper-buffer-search-char))) |
d5e52f99 MK |
1016 | (if com |
1017 | ;; this means that we already have a command character, so we | |
1018 | ;; construct a com list and exit while. however, if char is " | |
1019 | ;; it is an error. | |
1020 | (progn | |
1021 | ;; new com is (CHAR . OLDCOM) | |
1022 | (if (memq char '(?# ?\")) (error "")) | |
1023 | (setq com (cons char com)) | |
1024 | (setq cont nil)) | |
2f3eb3b6 MK |
1025 | ;; If com is nil we set com as char, and read more. Again, if char is |
1026 | ;; ", we read the name of register and store it in viper-use-register. | |
1027 | ;; if char is !, =, or #, a complete com is formed so we exit the while | |
1028 | ;; loop. | |
d5e52f99 MK |
1029 | (cond ((memq char '(?! ?=)) |
1030 | (setq com char) | |
1031 | (setq char (read-char)) | |
1032 | (setq cont nil)) | |
1033 | ((= char ?#) | |
1034 | ;; read a char and encode it as com | |
1035 | (setq com (+ 128 (read-char))) | |
1036 | (setq char (read-char))) | |
1037 | ((= char ?\") | |
1038 | (let ((reg (read-char))) | |
2f3eb3b6 MK |
1039 | (if (viper-valid-register reg) |
1040 | (setq viper-use-register reg) | |
d5e52f99 MK |
1041 | (error "")) |
1042 | (setq char (read-char)))) | |
1043 | (t | |
1044 | (setq com char) | |
1045 | (setq char (read-char)))))) | |
1046 | ||
1047 | (if (atom com) | |
1048 | ;; `com' is a single char, so we construct the command argument | |
1049 | ;; and if `char' is `?', we describe the arg; otherwise | |
1050 | ;; we prepare the command that will be executed at the end. | |
1051 | (progn | |
1052 | (setq cmd-info (cons value com)) | |
1053 | (while (= char ?U) | |
2f3eb3b6 | 1054 | (viper-describe-arg cmd-info) |
d5e52f99 MK |
1055 | (setq char (read-char))) |
1056 | ;; `char' is a movement cmd, a digit arg cmd, or a register cmd---so we | |
1057 | ;; execute it at the very end | |
2f3eb3b6 MK |
1058 | (or (viper-movement-command-p char) |
1059 | (viper-digit-command-p char) | |
1060 | (viper-regsuffix-command-p char) | |
c81246f3 | 1061 | (= char ?!) ; bang command |
d5e52f99 | 1062 | (error "")) |
c81246f3 | 1063 | (setq cmd-to-exec-at-end |
2f3eb3b6 | 1064 | (viper-exec-form-in-vi |
d5e52f99 MK |
1065 | (` (key-binding (char-to-string (, char))))))) |
1066 | ||
1067 | ;; as com is non-nil, this means that we have a command to execute | |
1068 | (if (memq (car com) '(?r ?R)) | |
1069 | ;; execute apropriate region command. | |
1070 | (let ((char (car com)) (com (cdr com))) | |
1071 | (setq prefix-arg (cons value com)) | |
2f3eb3b6 MK |
1072 | (if (= char ?r) (viper-region prefix-arg) |
1073 | (viper-Region prefix-arg)) | |
d5e52f99 MK |
1074 | ;; reset prefix-arg |
1075 | (setq prefix-arg nil)) | |
1076 | ;; otherwise, reset prefix arg and call appropriate command | |
1077 | (setq value (if (null value) 1 value)) | |
1078 | (setq prefix-arg nil) | |
2f3eb3b6 MK |
1079 | (cond |
1080 | ;; If we change ?C to ?c here, then cc will enter replacement mode | |
1081 | ;; rather than deleting lines. However, it will affect 1 less line than | |
1082 | ;; normal. We decided to not use replacement mode here and follow Vi, | |
1083 | ;; since replacement mode on n full lines can be achieved with nC. | |
1084 | ((equal com '(?c . ?c)) (viper-line (cons value ?C))) | |
1085 | ((equal com '(?d . ?d)) (viper-line (cons value ?D))) | |
1086 | ((equal com '(?d . ?y)) (viper-yank-defun)) | |
1087 | ((equal com '(?y . ?y)) (viper-line (cons value ?Y))) | |
1088 | ((equal com '(?< . ?<)) (viper-line (cons value ?<))) | |
1089 | ((equal com '(?> . ?>)) (viper-line (cons value ?>))) | |
1090 | ((equal com '(?! . ?!)) (viper-line (cons value ?!))) | |
1091 | ((equal com '(?= . ?=)) (viper-line (cons value ?=))) | |
1092 | (t (error ""))))) | |
d5e52f99 | 1093 | |
c81246f3 | 1094 | (if cmd-to-exec-at-end |
d5e52f99 MK |
1095 | (progn |
1096 | (setq last-command-char char) | |
1097 | (setq last-command-event | |
2f3eb3b6 MK |
1098 | (viper-copy-event |
1099 | (if viper-xemacs-p (character-to-event char) char))) | |
d5e52f99 | 1100 | (condition-case nil |
c81246f3 | 1101 | (funcall cmd-to-exec-at-end cmd-info) |
d5e52f99 MK |
1102 | (error |
1103 | (error ""))))) | |
1104 | )) | |
1105 | ||
2f3eb3b6 | 1106 | (defun viper-describe-arg (arg) |
d5e52f99 | 1107 | (let (val com) |
2f3eb3b6 MK |
1108 | (setq val (viper-P-val arg) |
1109 | com (viper-getcom arg)) | |
d5e52f99 MK |
1110 | (if (null val) |
1111 | (if (null com) | |
1112 | (message "Value is nil, and command is nil") | |
1113 | (message "Value is nil, and command is `%c'" com)) | |
1114 | (if (null com) | |
1115 | (message "Value is `%d', and command is nil" val) | |
1116 | (message "Value is `%d', and command is `%c'" val com))))) | |
1117 | ||
2f3eb3b6 | 1118 | (defun viper-digit-argument (arg) |
d5e52f99 MK |
1119 | "Begin numeric argument for the next command." |
1120 | (interactive "P") | |
2f3eb3b6 MK |
1121 | (viper-leave-region-active) |
1122 | (viper-prefix-arg-value | |
d5e52f99 MK |
1123 | last-command-char (if (consp arg) (cdr arg) nil))) |
1124 | ||
2f3eb3b6 | 1125 | (defun viper-command-argument (arg) |
d5e52f99 MK |
1126 | "Accept a motion command as an argument." |
1127 | (interactive "P") | |
2f3eb3b6 | 1128 | (let ((viper-intermediate-command 'viper-command-argument)) |
d5e52f99 | 1129 | (condition-case nil |
2f3eb3b6 | 1130 | (viper-prefix-arg-com |
d5e52f99 MK |
1131 | last-command-char |
1132 | (cond ((null arg) nil) | |
1133 | ((consp arg) (car arg)) | |
1134 | ((integerp arg) arg) | |
2f3eb3b6 | 1135 | (t (error viper-InvalidCommandArgument))) |
d5e52f99 MK |
1136 | (cond ((null arg) nil) |
1137 | ((consp arg) (cdr arg)) | |
1138 | ((integerp arg) nil) | |
2f3eb3b6 MK |
1139 | (t (error viper-InvalidCommandArgument)))) |
1140 | (quit (setq viper-use-register nil) | |
d5e52f99 | 1141 | (signal 'quit nil))) |
2f3eb3b6 | 1142 | (viper-deactivate-mark))) |
d5e52f99 MK |
1143 | |
1144 | \f | |
1145 | ;; repeat last destructive command | |
1146 | ||
1147 | ;; Append region to text in register REG. | |
1148 | ;; START and END are buffer positions indicating what to append. | |
2f3eb3b6 | 1149 | (defsubst viper-append-to-register (reg start end) |
d5e52f99 MK |
1150 | (set-register reg (concat (if (stringp (get-register reg)) |
1151 | (get-register reg) "") | |
1152 | (buffer-substring start end)))) | |
1153 | ||
2f3eb3b6 MK |
1154 | ;; Saves last inserted text for possible use by viper-repeat command. |
1155 | (defun viper-save-last-insertion (beg end) | |
96dffd25 MK |
1156 | (condition-case nil |
1157 | (setq viper-last-insertion (buffer-substring beg end)) | |
1158 | (error | |
1159 | ;; beg or end marker are somehow screwed up | |
1160 | (setq viper-last-insertion nil))) | |
2f3eb3b6 MK |
1161 | (setq viper-last-insertion (buffer-substring beg end)) |
1162 | (or (< (length viper-d-com) 5) | |
1163 | (setcar (nthcdr 4 viper-d-com) viper-last-insertion)) | |
1164 | (or (null viper-command-ring) | |
1165 | (ring-empty-p viper-command-ring) | |
d5e52f99 | 1166 | (progn |
2f3eb3b6 MK |
1167 | (setcar (nthcdr 4 (viper-current-ring-item viper-command-ring)) |
1168 | viper-last-insertion) | |
d5e52f99 | 1169 | ;; del most recent elt, if identical to the second most-recent |
2f3eb3b6 | 1170 | (viper-cleanup-ring viper-command-ring))) |
d5e52f99 MK |
1171 | ) |
1172 | ||
2f3eb3b6 MK |
1173 | (defsubst viper-yank-last-insertion () |
1174 | "Inserts the text saved by the previous viper-save-last-insertion command." | |
d5e52f99 | 1175 | (condition-case nil |
2f3eb3b6 | 1176 | (insert viper-last-insertion) |
d5e52f99 MK |
1177 | (error nil))) |
1178 | ||
1179 | ||
1180 | ;; define functions to be executed | |
1181 | ||
1182 | ;; invoked by the `C' command | |
2f3eb3b6 MK |
1183 | (defun viper-exec-change (m-com com) |
1184 | (or (and (markerp viper-com-point) (marker-position viper-com-point)) | |
1185 | (set-marker viper-com-point (point) (current-buffer))) | |
d5e52f99 | 1186 | ;; handle C cmd at the eol and at eob. |
2f3eb3b6 MK |
1187 | (if (or (and (eolp) (= viper-com-point (point))) |
1188 | (= viper-com-point (point-max))) | |
d5e52f99 MK |
1189 | (progn |
1190 | (insert " ")(backward-char 1))) | |
2f3eb3b6 MK |
1191 | (if (= viper-com-point (point)) |
1192 | (viper-forward-char-carefully)) | |
1193 | (set-mark viper-com-point) | |
1194 | (if (eq m-com 'viper-next-line-at-bol) | |
1195 | (viper-enlarge-region (mark t) (point))) | |
1196 | (if (< (point) (mark t)) | |
1197 | (exchange-point-and-mark)) | |
1198 | (if (eq (preceding-char) ?\n) | |
1199 | (viper-backward-char-carefully)) ; give back the newline | |
d5e52f99 | 1200 | (if (= com ?c) |
2f3eb3b6 MK |
1201 | (viper-change (mark t) (point)) |
1202 | (viper-change-subr (mark t) (point)))) | |
d5e52f99 | 1203 | |
2f3eb3b6 MK |
1204 | ;; this is invoked by viper-substitute-line |
1205 | (defun viper-exec-Change (m-com com) | |
d5e52f99 | 1206 | (save-excursion |
2f3eb3b6 MK |
1207 | (set-mark viper-com-point) |
1208 | (viper-enlarge-region (mark t) (point)) | |
1209 | (if viper-use-register | |
d5e52f99 | 1210 | (progn |
2f3eb3b6 | 1211 | (cond ((viper-valid-register viper-use-register '(letter digit)) |
d5e52f99 | 1212 | (copy-to-register |
2f3eb3b6 MK |
1213 | viper-use-register (mark t) (point) nil)) |
1214 | ((viper-valid-register viper-use-register '(Letter)) | |
1215 | (viper-append-to-register | |
1216 | (downcase viper-use-register) (mark t) (point))) | |
1217 | (t (setq viper-use-register nil) | |
1218 | (error viper-InvalidRegister viper-use-register))) | |
1219 | (setq viper-use-register nil))) | |
d5e52f99 MK |
1220 | (delete-region (mark t) (point))) |
1221 | (open-line 1) | |
2f3eb3b6 MK |
1222 | (if (= com ?C) |
1223 | (viper-change-state-to-insert) | |
1224 | (viper-yank-last-insertion))) | |
1225 | ||
1226 | (defun viper-exec-delete (m-com com) | |
1227 | (or (and (markerp viper-com-point) (marker-position viper-com-point)) | |
1228 | (set-marker viper-com-point (point) (current-buffer))) | |
1229 | (if viper-use-register | |
d5e52f99 | 1230 | (progn |
2f3eb3b6 | 1231 | (cond ((viper-valid-register viper-use-register '(letter digit)) |
d5e52f99 | 1232 | (copy-to-register |
2f3eb3b6 MK |
1233 | viper-use-register viper-com-point (point) nil)) |
1234 | ((viper-valid-register viper-use-register '(Letter)) | |
1235 | (viper-append-to-register | |
1236 | (downcase viper-use-register) viper-com-point (point))) | |
1237 | (t (setq viper-use-register nil) | |
1238 | (error viper-InvalidRegister viper-use-register))) | |
1239 | (setq viper-use-register nil))) | |
d5e52f99 MK |
1240 | (setq last-command |
1241 | (if (eq last-command 'd-command) 'kill-region nil)) | |
2f3eb3b6 | 1242 | (kill-region viper-com-point (point)) |
d5e52f99 | 1243 | (setq this-command 'd-command) |
2f3eb3b6 | 1244 | (if viper-ex-style-motion |
d5e52f99 MK |
1245 | (if (and (eolp) (not (bolp))) (backward-char 1)))) |
1246 | ||
2f3eb3b6 | 1247 | (defun viper-exec-Delete (m-com com) |
d5e52f99 | 1248 | (save-excursion |
2f3eb3b6 MK |
1249 | (set-mark viper-com-point) |
1250 | (viper-enlarge-region (mark t) (point)) | |
1251 | (if viper-use-register | |
d5e52f99 | 1252 | (progn |
2f3eb3b6 | 1253 | (cond ((viper-valid-register viper-use-register '(letter digit)) |
d5e52f99 | 1254 | (copy-to-register |
2f3eb3b6 MK |
1255 | viper-use-register (mark t) (point) nil)) |
1256 | ((viper-valid-register viper-use-register '(Letter)) | |
1257 | (viper-append-to-register | |
1258 | (downcase viper-use-register) (mark t) (point))) | |
1259 | (t (setq viper-use-register nil) | |
1260 | (error viper-InvalidRegister viper-use-register))) | |
1261 | (setq viper-use-register nil))) | |
d5e52f99 MK |
1262 | (setq last-command |
1263 | (if (eq last-command 'D-command) 'kill-region nil)) | |
1264 | (kill-region (mark t) (point)) | |
2f3eb3b6 | 1265 | (if (eq m-com 'viper-line) (setq this-command 'D-command))) |
d5e52f99 MK |
1266 | (back-to-indentation)) |
1267 | ||
2f3eb3b6 MK |
1268 | (defun viper-exec-yank (m-com com) |
1269 | (or (and (markerp viper-com-point) (marker-position viper-com-point)) | |
1270 | (set-marker viper-com-point (point) (current-buffer))) | |
1271 | (if viper-use-register | |
d5e52f99 | 1272 | (progn |
2f3eb3b6 | 1273 | (cond ((viper-valid-register viper-use-register '(letter digit)) |
d5e52f99 | 1274 | (copy-to-register |
2f3eb3b6 MK |
1275 | viper-use-register viper-com-point (point) nil)) |
1276 | ((viper-valid-register viper-use-register '(Letter)) | |
1277 | (viper-append-to-register | |
1278 | (downcase viper-use-register) viper-com-point (point))) | |
1279 | (t (setq viper-use-register nil) | |
1280 | (error viper-InvalidRegister viper-use-register))) | |
1281 | (setq viper-use-register nil))) | |
d5e52f99 | 1282 | (setq last-command nil) |
2f3eb3b6 MK |
1283 | (copy-region-as-kill viper-com-point (point)) |
1284 | (goto-char viper-com-point)) | |
d5e52f99 | 1285 | |
2f3eb3b6 | 1286 | (defun viper-exec-Yank (m-com com) |
d5e52f99 | 1287 | (save-excursion |
2f3eb3b6 MK |
1288 | (set-mark viper-com-point) |
1289 | (viper-enlarge-region (mark t) (point)) | |
1290 | (if viper-use-register | |
d5e52f99 | 1291 | (progn |
2f3eb3b6 | 1292 | (cond ((viper-valid-register viper-use-register '(letter digit)) |
d5e52f99 | 1293 | (copy-to-register |
2f3eb3b6 MK |
1294 | viper-use-register (mark t) (point) nil)) |
1295 | ((viper-valid-register viper-use-register '(Letter)) | |
1296 | (viper-append-to-register | |
1297 | (downcase viper-use-register) (mark t) (point))) | |
1298 | (t (setq viper-use-register nil) | |
1299 | (error viper-InvalidRegister viper-use-register))) | |
1300 | (setq viper-use-register nil))) | |
d5e52f99 MK |
1301 | (setq last-command nil) |
1302 | (copy-region-as-kill (mark t) (point))) | |
2f3eb3b6 MK |
1303 | (viper-deactivate-mark) |
1304 | (goto-char viper-com-point)) | |
d5e52f99 | 1305 | |
2f3eb3b6 | 1306 | (defun viper-exec-bang (m-com com) |
d5e52f99 | 1307 | (save-excursion |
2f3eb3b6 MK |
1308 | (set-mark viper-com-point) |
1309 | (viper-enlarge-region (mark t) (point)) | |
c81246f3 | 1310 | (exchange-point-and-mark) |
d5e52f99 MK |
1311 | (shell-command-on-region |
1312 | (mark t) (point) | |
1313 | (if (= com ?!) | |
2f3eb3b6 MK |
1314 | (setq viper-last-shell-com |
1315 | (viper-read-string-with-history | |
d5e52f99 MK |
1316 | "!" |
1317 | nil | |
2f3eb3b6 MK |
1318 | 'viper-shell-history |
1319 | (car viper-shell-history) | |
d5e52f99 | 1320 | )) |
2f3eb3b6 | 1321 | viper-last-shell-com) |
d5e52f99 MK |
1322 | t))) |
1323 | ||
2f3eb3b6 | 1324 | (defun viper-exec-equals (m-com com) |
d5e52f99 | 1325 | (save-excursion |
2f3eb3b6 MK |
1326 | (set-mark viper-com-point) |
1327 | (viper-enlarge-region (mark t) (point)) | |
d5e52f99 MK |
1328 | (if (> (mark t) (point)) (exchange-point-and-mark)) |
1329 | (indent-region (mark t) (point) nil))) | |
1330 | ||
2f3eb3b6 | 1331 | (defun viper-exec-shift (m-com com) |
d5e52f99 | 1332 | (save-excursion |
2f3eb3b6 MK |
1333 | (set-mark viper-com-point) |
1334 | (viper-enlarge-region (mark t) (point)) | |
d5e52f99 MK |
1335 | (if (> (mark t) (point)) (exchange-point-and-mark)) |
1336 | (indent-rigidly (mark t) (point) | |
1337 | (if (= com ?>) | |
2f3eb3b6 MK |
1338 | viper-shift-width |
1339 | (- viper-shift-width)))) | |
d5e52f99 | 1340 | ;; return point to where it was before shift |
2f3eb3b6 | 1341 | (goto-char viper-com-point)) |
d5e52f99 MK |
1342 | |
1343 | ;; this is needed because some commands fake com by setting it to ?r, which | |
1344 | ;; denotes repeated insert command. | |
2f3eb3b6 | 1345 | (defsubst viper-exec-dummy (m-com com) |
d5e52f99 MK |
1346 | nil) |
1347 | ||
2f3eb3b6 MK |
1348 | (defun viper-exec-buffer-search (m-com com) |
1349 | (setq viper-s-string (buffer-substring (point) viper-com-point)) | |
1350 | (setq viper-s-forward t) | |
1351 | (setq viper-search-history (cons viper-s-string viper-search-history)) | |
1352 | (viper-search viper-s-string viper-s-forward 1)) | |
d5e52f99 | 1353 | |
2f3eb3b6 | 1354 | (defvar viper-exec-array (make-vector 128 nil)) |
d5e52f99 MK |
1355 | |
1356 | ;; Using a dispatch array allows adding functions like buffer search | |
1357 | ;; without affecting other functions. Buffer search can now be bound | |
1358 | ;; to any character. | |
1359 | ||
2f3eb3b6 MK |
1360 | (aset viper-exec-array ?c 'viper-exec-change) |
1361 | (aset viper-exec-array ?C 'viper-exec-Change) | |
1362 | (aset viper-exec-array ?d 'viper-exec-delete) | |
1363 | (aset viper-exec-array ?D 'viper-exec-Delete) | |
1364 | (aset viper-exec-array ?y 'viper-exec-yank) | |
1365 | (aset viper-exec-array ?Y 'viper-exec-Yank) | |
1366 | (aset viper-exec-array ?r 'viper-exec-dummy) | |
1367 | (aset viper-exec-array ?! 'viper-exec-bang) | |
1368 | (aset viper-exec-array ?< 'viper-exec-shift) | |
1369 | (aset viper-exec-array ?> 'viper-exec-shift) | |
1370 | (aset viper-exec-array ?= 'viper-exec-equals) | |
d5e52f99 MK |
1371 | |
1372 | ||
1373 | ||
1374 | ;; This function is called by various movement commands to execute a | |
1375 | ;; destructive command on the region specified by the movement command. For | |
2f3eb3b6 MK |
1376 | ;; instance, if the user types cw, then the command viper-forward-word will |
1377 | ;; call viper-execute-com to execute viper-exec-change, which eventually will | |
1378 | ;; call viper-change to invoke the replace mode on the region. | |
d5e52f99 | 1379 | ;; |
2f3eb3b6 MK |
1380 | ;; The var viper-d-com is set to (M-COM VAL COM REG INSETED-TEXT COMMAND-KEYS) |
1381 | ;; via a call to viper-set-destructive-command, for later use by viper-repeat. | |
1382 | (defun viper-execute-com (m-com val com) | |
1383 | (let ((reg viper-use-register)) | |
d5e52f99 MK |
1384 | ;; this is the special command `#' |
1385 | (if (> com 128) | |
2f3eb3b6 MK |
1386 | (viper-special-prefix-com (- com 128)) |
1387 | (let ((fn (aref viper-exec-array (if (< com 0) (- com) com)))) | |
d5e52f99 | 1388 | (if (null fn) |
2f3eb3b6 | 1389 | (error "%c: %s" com viper-InvalidViCommand) |
d5e52f99 | 1390 | (funcall fn m-com com)))) |
2f3eb3b6 MK |
1391 | (if (viper-dotable-command-p com) |
1392 | (viper-set-destructive-command | |
d5e52f99 MK |
1393 | (list m-com val |
1394 | (if (memq com (list ?c ?C ?!)) (- com) com) | |
1395 | reg nil nil))) | |
1396 | )) | |
1397 | ||
1398 | ||
2f3eb3b6 | 1399 | (defun viper-repeat (arg) |
d5e52f99 | 1400 | "Re-execute last destructive command. |
2f3eb3b6 | 1401 | Use the info in viper-d-com, which has the form |
d5e52f99 MK |
1402 | \(com val ch reg inserted-text command-keys\), |
1403 | where `com' is the command to be re-executed, `val' is the | |
1404 | argument to `com', `ch' is a flag for repeat, and `reg' is optional; | |
1405 | if it exists, it is the name of the register for `com'. | |
1406 | If the prefix argument, ARG, is non-nil, it is used instead of `val'." | |
1407 | (interactive "P") | |
1408 | (let ((save-point (point)) ; save point before repeating prev cmd | |
1409 | ;; Pass along that we are repeating a destructive command | |
2f3eb3b6 MK |
1410 | ;; This tells viper-set-destructive-command not to update |
1411 | ;; viper-command-ring | |
1412 | (viper-intermediate-command 'viper-repeat)) | |
1413 | (if (eq last-command 'viper-undo) | |
1414 | ;; if the last command was viper-undo, then undo-more | |
1415 | (viper-undo-more) | |
1416 | ;; otherwise execute the command stored in viper-d-com. if arg is | |
1417 | ;; non-nil its prefix value is used as new prefix value for the command. | |
1418 | (let ((m-com (car viper-d-com)) | |
1419 | (val (viper-P-val arg)) | |
1420 | (com (nth 2 viper-d-com)) | |
1421 | (reg (nth 3 viper-d-com))) | |
1422 | (if (null val) (setq val (nth 1 viper-d-com))) | |
d5e52f99 | 1423 | (if (null m-com) (error "No previous command to repeat.")) |
2f3eb3b6 MK |
1424 | (setq viper-use-register reg) |
1425 | (if (nth 4 viper-d-com) ; text inserted by command | |
1426 | (setq viper-last-insertion (nth 4 viper-d-com) | |
1427 | viper-d-char (nth 4 viper-d-com))) | |
d5e52f99 | 1428 | (funcall m-com (cons val com)) |
2f3eb3b6 | 1429 | (cond ((and (< save-point (point)) viper-keep-point-on-repeat) |
1e70790f | 1430 | (goto-char save-point)) ; go back to before repeat. |
34317da2 | 1431 | ((and (< save-point (point)) viper-ex-style-editing) |
1e70790f | 1432 | (or (bolp) (backward-char 1)))) |
d5e52f99 MK |
1433 | (if (and (eolp) (not (bolp))) |
1434 | (backward-char 1)) | |
1435 | )) | |
34317da2 | 1436 | (viper-adjust-undo) ; take care of undo |
d5e52f99 MK |
1437 | ;; If the prev cmd was rotating the command ring, this means that `.' has |
1438 | ;; just executed a command from that ring. So, push it on the ring again. | |
2f3eb3b6 MK |
1439 | ;; If we are just executing previous command , then don't push viper-d-com |
1440 | ;; because viper-d-com is not fully constructed in this case (its keys and | |
d5e52f99 MK |
1441 | ;; the inserted text may be nil). Besides, in this case, the command |
1442 | ;; executed by `.' is already on the ring. | |
2f3eb3b6 MK |
1443 | (if (eq last-command 'viper-display-current-destructive-command) |
1444 | (viper-push-onto-ring viper-d-com 'viper-command-ring)) | |
1445 | (viper-deactivate-mark) | |
d5e52f99 MK |
1446 | )) |
1447 | ||
2f3eb3b6 | 1448 | (defun viper-repeat-from-history () |
d5e52f99 | 1449 | "Repeat a destructive command from history. |
2f3eb3b6 | 1450 | Doesn't change viper-command-ring in any way, so `.' will work as before |
d5e52f99 MK |
1451 | executing this command. |
1452 | This command is supposed to be bound to a two-character Vi macro where | |
1453 | the second character is a digit 0 to 9. The digit indicates which | |
1454 | history command to execute. `<char>0' is equivalent to `.', `<char>1' | |
1455 | invokes the command before that, etc." | |
1456 | (interactive) | |
2f3eb3b6 MK |
1457 | (let* ((viper-intermediate-command 'repeating-display-destructive-command) |
1458 | (idx (cond (viper-this-kbd-macro | |
d5e52f99 | 1459 | (string-to-number |
2f3eb3b6 | 1460 | (symbol-name (elt viper-this-kbd-macro 1)))) |
d5e52f99 MK |
1461 | (t 0))) |
1462 | (num idx) | |
2f3eb3b6 | 1463 | (viper-d-com viper-d-com)) |
d5e52f99 MK |
1464 | |
1465 | (or (and (numberp num) (<= 0 num) (<= num 9)) | |
1466 | (progn | |
1467 | (setq idx 0 | |
1468 | num 0) | |
1469 | (message | |
2f3eb3b6 | 1470 | "`viper-repeat-from-history' must be invoked as a Vi macro bound to `<key><digit>'"))) |
d5e52f99 | 1471 | (while (< 0 num) |
2f3eb3b6 | 1472 | (setq viper-d-com (viper-special-ring-rotate1 viper-command-ring -1)) |
d5e52f99 | 1473 | (setq num (1- num))) |
2f3eb3b6 | 1474 | (viper-repeat nil) |
d5e52f99 | 1475 | (while (> idx num) |
2f3eb3b6 | 1476 | (viper-special-ring-rotate1 viper-command-ring 1) |
d5e52f99 MK |
1477 | (setq num (1+ num))) |
1478 | )) | |
1479 | ||
1480 | ||
1481 | ;; The hash-command. It is invoked interactively by the key sequence #<char>. | |
2f3eb3b6 MK |
1482 | ;; The chars that can follow `#' are determined by viper-hash-command-p |
1483 | (defun viper-special-prefix-com (char) | |
d5e52f99 | 1484 | (cond ((= char ?c) |
2f3eb3b6 MK |
1485 | (downcase-region (min viper-com-point (point)) |
1486 | (max viper-com-point (point)))) | |
d5e52f99 | 1487 | ((= char ?C) |
2f3eb3b6 MK |
1488 | (upcase-region (min viper-com-point (point)) |
1489 | (max viper-com-point (point)))) | |
d5e52f99 | 1490 | ((= char ?g) |
2f3eb3b6 MK |
1491 | (push-mark viper-com-point t) |
1492 | (viper-global-execute)) | |
d5e52f99 | 1493 | ((= char ?q) |
2f3eb3b6 MK |
1494 | (push-mark viper-com-point t) |
1495 | (viper-quote-region)) | |
1496 | ((= char ?s) (funcall viper-spell-function viper-com-point (point))) | |
1497 | (t (error "#%c: %s" char viper-InvalidViCommand)))) | |
d5e52f99 MK |
1498 | |
1499 | \f | |
1500 | ;; undoing | |
1501 | ||
2f3eb3b6 | 1502 | (defun viper-undo () |
d5e52f99 MK |
1503 | "Undo previous change." |
1504 | (interactive) | |
1505 | (message "undo!") | |
1506 | (let ((modified (buffer-modified-p)) | |
1507 | (before-undo-pt (point-marker)) | |
1508 | (after-change-functions after-change-functions) | |
1509 | undo-beg-posn undo-end-posn) | |
1510 | ||
1511 | ;; no need to remove this hook, since this var has scope inside a let. | |
1512 | (add-hook 'after-change-functions | |
1513 | '(lambda (beg end len) | |
1514 | (setq undo-beg-posn beg | |
1515 | undo-end-posn (or end beg)))) | |
1516 | ||
1517 | (undo-start) | |
1518 | (undo-more 2) | |
1519 | (setq undo-beg-posn (or undo-beg-posn before-undo-pt) | |
1520 | undo-end-posn (or undo-end-posn undo-beg-posn)) | |
1521 | ||
1522 | (goto-char undo-beg-posn) | |
1523 | (sit-for 0) | |
2f3eb3b6 | 1524 | (if (and viper-keep-point-on-undo |
d5e52f99 MK |
1525 | (pos-visible-in-window-p before-undo-pt)) |
1526 | (progn | |
1527 | (push-mark (point-marker) t) | |
2f3eb3b6 | 1528 | (viper-sit-for-short 300) |
d5e52f99 | 1529 | (goto-char undo-end-posn) |
2f3eb3b6 | 1530 | (viper-sit-for-short 300) |
34317da2 MK |
1531 | (if (and (> (viper-chars-in-region undo-beg-posn before-undo-pt) 1) |
1532 | (> (viper-chars-in-region undo-end-posn before-undo-pt) 1)) | |
d5e52f99 MK |
1533 | (goto-char before-undo-pt) |
1534 | (goto-char undo-beg-posn))) | |
1535 | (push-mark before-undo-pt t)) | |
1536 | (if (and (eolp) (not (bolp))) (backward-char 1)) | |
1537 | (if (not modified) (set-buffer-modified-p t))) | |
2f3eb3b6 | 1538 | (setq this-command 'viper-undo)) |
d5e52f99 MK |
1539 | |
1540 | ;; Continue undoing previous changes. | |
2f3eb3b6 | 1541 | (defun viper-undo-more () |
d5e52f99 MK |
1542 | (message "undo more!") |
1543 | (condition-case nil | |
1544 | (undo-more 1) | |
1545 | (error (beep) | |
1546 | (message "No further undo information in this buffer"))) | |
1547 | (if (and (eolp) (not (bolp))) (backward-char 1)) | |
2f3eb3b6 | 1548 | (setq this-command 'viper-undo)) |
d5e52f99 MK |
1549 | |
1550 | ;; The following two functions are used to set up undo properly. | |
1551 | ;; In VI, unlike Emacs, if you open a line, say, and add a bunch of lines, | |
1552 | ;; they are undone all at once. | |
2f3eb3b6 | 1553 | (defun viper-adjust-undo () |
34317da2 MK |
1554 | (if viper-undo-needs-adjustment |
1555 | (let ((inhibit-quit t) | |
1556 | tmp tmp2) | |
1557 | (setq viper-undo-needs-adjustment nil) | |
1558 | (if (listp buffer-undo-list) | |
1559 | (if (setq tmp (memq viper-buffer-undo-list-mark buffer-undo-list)) | |
1560 | (progn | |
1561 | (setq tmp2 (cdr tmp)) ; the part after mark | |
1562 | ||
1563 | ;; cut tail from buffer-undo-list temporarily by direct | |
1564 | ;; manipulation with pointers in buffer-undo-list | |
1565 | (setcdr tmp nil) | |
1566 | ||
1567 | (setq buffer-undo-list (delq nil buffer-undo-list)) | |
1568 | (setq buffer-undo-list | |
1569 | (delq viper-buffer-undo-list-mark buffer-undo-list)) | |
1570 | ;; restore tail of buffer-undo-list | |
1571 | (setq buffer-undo-list (nconc buffer-undo-list tmp2))) | |
1572 | (setq buffer-undo-list (delq nil buffer-undo-list))))) | |
1573 | )) | |
d5e52f99 MK |
1574 | |
1575 | ||
2f3eb3b6 | 1576 | (defun viper-set-complex-command-for-undo () |
d5e52f99 | 1577 | (if (listp buffer-undo-list) |
2f3eb3b6 | 1578 | (if (not viper-undo-needs-adjustment) |
d5e52f99 MK |
1579 | (let ((inhibit-quit t)) |
1580 | (setq buffer-undo-list | |
2f3eb3b6 MK |
1581 | (cons viper-buffer-undo-list-mark buffer-undo-list)) |
1582 | (setq viper-undo-needs-adjustment t))))) | |
d5e52f99 MK |
1583 | |
1584 | ||
1585 | ||
1586 | ||
2f3eb3b6 MK |
1587 | (defun viper-display-current-destructive-command () |
1588 | (let ((text (nth 4 viper-d-com)) | |
1589 | (keys (nth 5 viper-d-com)) | |
d5e52f99 MK |
1590 | (max-text-len 30)) |
1591 | ||
2f3eb3b6 | 1592 | (setq this-command 'viper-display-current-destructive-command) |
d5e52f99 MK |
1593 | |
1594 | (message " `.' runs %s%s" | |
2f3eb3b6 | 1595 | (concat "`" (viper-array-to-string keys) "'") |
8626cfa2 MK |
1596 | (viper-abbreviate-string |
1597 | (if viper-xemacs-p | |
34317da2 MK |
1598 | (replace-in-string |
1599 | (cond ((characterp text) (char-to-string text)) | |
1600 | ((stringp text) text) | |
1601 | (t "")) | |
1602 | "\n" "^J") | |
8626cfa2 MK |
1603 | text) |
1604 | max-text-len | |
1605 | " inserting `" "'" " .......")) | |
d5e52f99 MK |
1606 | )) |
1607 | ||
1608 | ||
2f3eb3b6 | 1609 | ;; don't change viper-d-com if it was viper-repeat command invoked with `.' |
d5e52f99 | 1610 | ;; or in some other way (non-interactively). |
2f3eb3b6 MK |
1611 | (defun viper-set-destructive-command (list) |
1612 | (or (eq viper-intermediate-command 'viper-repeat) | |
d5e52f99 | 1613 | (progn |
2f3eb3b6 MK |
1614 | (setq viper-d-com list) |
1615 | (setcar (nthcdr 5 viper-d-com) | |
1616 | (viper-array-to-string (if (arrayp viper-this-command-keys) | |
1617 | viper-this-command-keys | |
1618 | (this-command-keys)))) | |
1619 | (viper-push-onto-ring viper-d-com 'viper-command-ring))) | |
1620 | (setq viper-this-command-keys nil)) | |
d5e52f99 | 1621 | |
2f3eb3b6 | 1622 | (defun viper-prev-destructive-command (next) |
d5e52f99 MK |
1623 | "Find previous destructive command in the history of destructive commands. |
1624 | With prefix argument, find next destructive command." | |
1625 | (interactive "P") | |
2f3eb3b6 MK |
1626 | (let (cmd viper-intermediate-command) |
1627 | (if (eq last-command 'viper-display-current-destructive-command) | |
d5e52f99 | 1628 | ;; repeated search through command history |
2f3eb3b6 MK |
1629 | (setq viper-intermediate-command |
1630 | 'repeating-display-destructive-command) | |
d5e52f99 | 1631 | ;; first search through command history--set temp ring |
2f3eb3b6 | 1632 | (setq viper-temp-command-ring (copy-list viper-command-ring))) |
d5e52f99 | 1633 | (setq cmd (if next |
2f3eb3b6 MK |
1634 | (viper-special-ring-rotate1 viper-temp-command-ring 1) |
1635 | (viper-special-ring-rotate1 viper-temp-command-ring -1))) | |
d5e52f99 MK |
1636 | (if (null cmd) |
1637 | () | |
2f3eb3b6 MK |
1638 | (setq viper-d-com cmd)) |
1639 | (viper-display-current-destructive-command))) | |
d5e52f99 | 1640 | |
2f3eb3b6 | 1641 | (defun viper-next-destructive-command () |
d5e52f99 MK |
1642 | "Find next destructive command in the history of destructive commands." |
1643 | (interactive) | |
2f3eb3b6 | 1644 | (viper-prev-destructive-command 'next)) |
d5e52f99 | 1645 | |
2f3eb3b6 | 1646 | (defun viper-insert-prev-from-insertion-ring (arg) |
d5e52f99 MK |
1647 | "Cycle through insertion ring in the direction of older insertions. |
1648 | Undoes previous insertion and inserts new. | |
1649 | With prefix argument, cycles in the direction of newer elements. | |
1650 | In minibuffer, this command executes whatever the invocation key is bound | |
1651 | to in the global map, instead of cycling through the insertion ring." | |
1652 | (interactive "P") | |
2f3eb3b6 MK |
1653 | (let (viper-intermediate-command) |
1654 | (if (eq last-command 'viper-insert-from-insertion-ring) | |
d5e52f99 | 1655 | (progn ; repeated search through insertion history |
2f3eb3b6 MK |
1656 | (setq viper-intermediate-command 'repeating-insertion-from-ring) |
1657 | (if (eq viper-current-state 'replace-state) | |
d5e52f99 | 1658 | (undo 1) |
2f3eb3b6 | 1659 | (if viper-last-inserted-string-from-insertion-ring |
d5e52f99 | 1660 | (backward-delete-char |
2f3eb3b6 | 1661 | (length viper-last-inserted-string-from-insertion-ring)))) |
d5e52f99 MK |
1662 | ) |
1663 | ;;first search through insertion history | |
2f3eb3b6 MK |
1664 | (setq viper-temp-insertion-ring (copy-list viper-insertion-ring))) |
1665 | (setq this-command 'viper-insert-from-insertion-ring) | |
d5e52f99 MK |
1666 | ;; so that things will be undone properly |
1667 | (setq buffer-undo-list (cons nil buffer-undo-list)) | |
2f3eb3b6 MK |
1668 | (setq viper-last-inserted-string-from-insertion-ring |
1669 | (viper-special-ring-rotate1 viper-temp-insertion-ring (if arg 1 -1))) | |
d5e52f99 | 1670 | |
2f3eb3b6 MK |
1671 | ;; this change of viper-intermediate-command must come after |
1672 | ;; viper-special-ring-rotate1, so that the ring will rotate, but before the | |
d5e52f99 | 1673 | ;; insertion. |
2f3eb3b6 MK |
1674 | (setq viper-intermediate-command nil) |
1675 | (if viper-last-inserted-string-from-insertion-ring | |
1676 | (insert viper-last-inserted-string-from-insertion-ring)) | |
d5e52f99 MK |
1677 | )) |
1678 | ||
2f3eb3b6 | 1679 | (defun viper-insert-next-from-insertion-ring () |
d5e52f99 MK |
1680 | "Cycle through insertion ring in the direction of older insertions. |
1681 | Undo previous insertion and inserts new." | |
1682 | (interactive) | |
2f3eb3b6 | 1683 | (viper-insert-prev-from-insertion-ring 'next)) |
d5e52f99 MK |
1684 | |
1685 | \f | |
1686 | ;; some region utilities | |
1687 | ||
1688 | ;; If at the last line of buffer, add \\n before eob, if newline is missing. | |
2f3eb3b6 | 1689 | (defun viper-add-newline-at-eob-if-necessary () |
d5e52f99 MK |
1690 | (save-excursion |
1691 | (end-of-line) | |
1692 | ;; make sure all lines end with newline, unless in the minibuffer or | |
1693 | ;; when requested otherwise (require-final-newline is nil) | |
1694 | (if (and (eobp) | |
1695 | (not (bolp)) | |
1696 | require-final-newline | |
2f3eb3b6 | 1697 | (not (viper-is-in-minibuffer)) |
d5e52f99 MK |
1698 | (not buffer-read-only)) |
1699 | (insert "\n")))) | |
1700 | ||
2f3eb3b6 | 1701 | (defun viper-yank-defun () |
d5e52f99 MK |
1702 | (mark-defun) |
1703 | (copy-region-as-kill (point) (mark t))) | |
1704 | ||
1705 | ;; Enlarge region between BEG and END. | |
2f3eb3b6 | 1706 | (defun viper-enlarge-region (beg end) |
d5e52f99 MK |
1707 | (or beg (setq beg end)) ; if beg is nil, set to end |
1708 | (or end (setq end beg)) ; if end is nil, set to beg | |
1709 | ||
1710 | (if (< beg end) | |
1711 | (progn (goto-char beg) (set-mark end)) | |
1712 | (goto-char end) | |
1713 | (set-mark beg)) | |
1714 | (beginning-of-line) | |
1715 | (exchange-point-and-mark) | |
1716 | (if (or (not (eobp)) (not (bolp))) (forward-line 1)) | |
1717 | (if (not (eobp)) (beginning-of-line)) | |
1718 | (if (> beg end) (exchange-point-and-mark))) | |
1719 | ||
1720 | ||
1721 | ;; Quote region by each line with a user supplied string. | |
2f3eb3b6 MK |
1722 | (defun viper-quote-region () |
1723 | (setq viper-quote-string | |
1724 | (viper-read-string-with-history | |
d5e52f99 MK |
1725 | "Quote string: " |
1726 | nil | |
2f3eb3b6 MK |
1727 | 'viper-quote-region-history |
1728 | viper-quote-string)) | |
1729 | (viper-enlarge-region (point) (mark t)) | |
d5e52f99 | 1730 | (if (> (point) (mark t)) (exchange-point-and-mark)) |
2f3eb3b6 | 1731 | (insert viper-quote-string) |
d5e52f99 MK |
1732 | (beginning-of-line) |
1733 | (forward-line 1) | |
1734 | (while (and (< (point) (mark t)) (bolp)) | |
2f3eb3b6 | 1735 | (insert viper-quote-string) |
d5e52f99 MK |
1736 | (beginning-of-line) |
1737 | (forward-line 1))) | |
1738 | ||
1739 | ;; Tells whether BEG is on the same line as END. | |
1740 | ;; If one of the args is nil, it'll return nil. | |
2f3eb3b6 | 1741 | (defun viper-same-line (beg end) |
d5e52f99 MK |
1742 | (let ((selective-display nil) |
1743 | (incr 0) | |
1744 | temp) | |
1745 | (if (and beg end (> beg end)) | |
1746 | (setq temp beg | |
1747 | beg end | |
1748 | end temp)) | |
1749 | (if (and beg end) | |
1750 | (cond ((or (> beg (point-max)) (> end (point-max))) ; out of range | |
1751 | nil) | |
1752 | (t | |
1753 | ;; This 'if' is needed because Emacs treats the next empty line | |
1754 | ;; as part of the previous line. | |
2f3eb3b6 | 1755 | (if (= (viper-line-pos 'start) end) |
d5e52f99 MK |
1756 | (setq incr 1)) |
1757 | (<= (+ incr (count-lines beg end)) 1)))) | |
1758 | )) | |
1759 | ||
1760 | ||
1761 | ;; Check if the string ends with a newline. | |
2f3eb3b6 | 1762 | (defun viper-end-with-a-newline-p (string) |
d5e52f99 | 1763 | (or (string= string "") |
2f3eb3b6 | 1764 | (= (viper-seq-last-elt string) ?\n))) |
d5e52f99 | 1765 | |
2f3eb3b6 | 1766 | (defun viper-tmp-insert-at-eob (msg) |
d5e52f99 MK |
1767 | (let ((savemax (point-max))) |
1768 | (goto-char savemax) | |
1769 | (insert msg) | |
1770 | (sit-for 2) | |
1771 | (goto-char savemax) (delete-region (point) (point-max)) | |
1772 | )) | |
1773 | ||
1774 | ||
1775 | \f | |
1776 | ;;; Minibuffer business | |
1777 | ||
2f3eb3b6 MK |
1778 | (defsubst viper-set-minibuffer-style () |
1779 | (add-hook 'minibuffer-setup-hook 'viper-minibuffer-setup-sentinel)) | |
d5e52f99 MK |
1780 | |
1781 | ||
2f3eb3b6 MK |
1782 | (defun viper-minibuffer-setup-sentinel () |
1783 | (let ((hook (if viper-vi-style-in-minibuffer | |
1784 | 'viper-change-state-to-insert | |
1785 | 'viper-change-state-to-emacs))) | |
d5e52f99 MK |
1786 | (funcall hook) |
1787 | )) | |
1788 | ||
96dffd25 MK |
1789 | ;; Interpret last event in the local map first; if fails, use exit-minibuffer. |
1790 | ;; Run viper-minibuffer-exit-hook before exiting. | |
2f3eb3b6 | 1791 | (defun viper-exit-minibuffer () |
96dffd25 | 1792 | "Exit minibuffer Viper way." |
d5e52f99 MK |
1793 | (interactive) |
1794 | (let (command) | |
1795 | (setq command (local-key-binding (char-to-string last-command-char))) | |
96dffd25 | 1796 | (run-hooks 'viper-minibuffer-exit-hook) |
d5e52f99 MK |
1797 | (if command |
1798 | (command-execute command) | |
1799 | (exit-minibuffer)))) | |
1800 | ||
96dffd25 MK |
1801 | |
1802 | (defcustom viper-smart-suffix-list | |
1803 | '("" "tex" "c" "cc" "C" "el" "java" "html" "htm" "pl" "P" "p") | |
454b1ed8 | 1804 | "*List of suffixes that Viper tries to append to filenames ending with a `.'. |
96dffd25 MK |
1805 | This is useful when you the current directory contains files with the same |
1806 | prefix and many different suffixes. Usually, only one of the suffixes | |
1807 | represents an editable file. However, file completion will stop at the `.' | |
1808 | The smart suffix feature lets you hit RET in such a case, and Viper will | |
1809 | select the appropriate suffix. | |
1810 | ||
1811 | Suffixes are tried in the order given and the first suffix for which a | |
1812 | corresponding file exists is selected. If no file exists for any of the | |
1813 | suffixes, the user is asked to confirm. | |
1814 | ||
1815 | To turn this feature off, set this variable to nil." | |
454b1ed8 | 1816 | :type '(repeat string) |
96dffd25 MK |
1817 | :group 'viper) |
1818 | ||
1819 | ||
1820 | ;; Try to add a suitable suffix to files whose name ends with a `.' | |
1821 | ;; Useful when the user hits RET on a non-completed file name. | |
1822 | ;; Used as a minibuffer exit hook in read-file-name | |
1823 | (defun viper-file-add-suffix () | |
1824 | (let ((count 0) | |
1825 | (len (length viper-smart-suffix-list)) | |
1826 | (file (buffer-string)) | |
1827 | found key cmd suff) | |
1828 | (goto-char (point-max)) | |
1829 | (if (and viper-smart-suffix-list (string-match "\\.$" file)) | |
1830 | (progn | |
1831 | (while (and (not found) (< count len)) | |
1832 | (setq suff (nth count viper-smart-suffix-list) | |
1833 | count (1+ count)) | |
1834 | (if (file-exists-p | |
1835 | (format "%s%s" (substitute-in-file-name file) suff)) | |
1836 | (progn | |
1837 | (setq found t) | |
1838 | (insert suff)))) | |
1839 | ||
1840 | (if found | |
1841 | () | |
1842 | (viper-tmp-insert-at-eob " [Please complete file name]") | |
1843 | (unwind-protect | |
1844 | (while (not (memq cmd | |
1845 | '(exit-minibuffer viper-exit-minibuffer))) | |
1846 | (setq cmd | |
1847 | (key-binding (setq key (read-key-sequence nil)))) | |
1848 | (cond ((eq cmd 'self-insert-command) | |
1849 | (if viper-xemacs-p | |
1850 | (insert (events-to-keys key)) | |
1851 | (insert key))) | |
1852 | ((memq cmd '(exit-minibuffer viper-exit-minibuffer)) | |
1853 | nil) | |
1854 | (t (command-execute cmd))) | |
1855 | ))) | |
1856 | )))) | |
1857 | ||
1858 | ||
1859 | (defun viper-minibuffer-trim-tail () | |
1860 | "Delete junk at the end of the first line of the minibuffer input. | |
1861 | Remove this function from `viper-minibuffer-exit-hook', if this causes | |
1862 | problems." | |
1863 | (if (viper-is-in-minibuffer) | |
1864 | (progn | |
1865 | (goto-char (point-min)) | |
1866 | (end-of-line) | |
1867 | (delete-region (point) (point-max))))) | |
1868 | ||
d5e52f99 MK |
1869 | \f |
1870 | ;;; Reading string with history | |
1871 | ||
2f3eb3b6 | 1872 | (defun viper-read-string-with-history (prompt &optional initial |
d5e52f99 MK |
1873 | history-var default keymap) |
1874 | ;; Read string, prompting with PROMPT and inserting the INITIAL | |
1875 | ;; value. Uses HISTORY-VAR. DEFAULT is the default value to accept if the | |
1876 | ;; input is an empty string. Use KEYMAP, if given, or the | |
1877 | ;; minibuffer-local-map. | |
1878 | ;; Default value is displayed until the user types something in the | |
1879 | ;; minibuffer. | |
1880 | (let ((minibuffer-setup-hook | |
1881 | '(lambda () | |
1882 | (if (stringp initial) | |
1883 | (progn | |
1884 | ;; don't wait if we have unread events or in kbd macro | |
1885 | (or unread-command-events | |
1886 | executing-kbd-macro | |
1887 | (sit-for 840)) | |
1888 | (erase-buffer) | |
1889 | (insert initial))) | |
2f3eb3b6 | 1890 | (viper-minibuffer-setup-sentinel))) |
d5e52f99 MK |
1891 | (val "") |
1892 | (padding "") | |
1893 | temp-msg) | |
1894 | ||
1895 | (setq keymap (or keymap minibuffer-local-map) | |
1896 | initial (or initial "") | |
1897 | temp-msg (if default | |
1898 | (format "(default: %s) " default) | |
1899 | "")) | |
1900 | ||
2f3eb3b6 | 1901 | (setq viper-incomplete-ex-cmd nil) |
d5e52f99 MK |
1902 | (setq val (read-from-minibuffer prompt |
1903 | (concat temp-msg initial val padding) | |
1904 | keymap nil history-var)) | |
1905 | (setq minibuffer-setup-hook nil | |
2f3eb3b6 | 1906 | padding (viper-array-to-string (this-command-keys)) |
d5e52f99 MK |
1907 | temp-msg "") |
1908 | ;; the following tries to be smart about what to put in history | |
1909 | (if (not (string= val (car (eval history-var)))) | |
1910 | (set history-var (cons val (eval history-var)))) | |
1911 | (if (or (string= (nth 0 (eval history-var)) (nth 1 (eval history-var))) | |
1912 | (string= (nth 0 (eval history-var)) "")) | |
1913 | (set history-var (cdr (eval history-var)))) | |
2f3eb3b6 MK |
1914 | ;; If the user enters nothing but the prev cmd wasn't viper-ex, |
1915 | ;; viper-command-argument, or `! shell-command', this probably means | |
d5e52f99 MK |
1916 | ;; that the user typed something then erased. Return "" in this case, not |
1917 | ;; the default---the default is too confusing in this case. | |
1918 | (cond ((and (string= val "") | |
1919 | (not (string= prompt "!")) ; was a `! shell-command' | |
1920 | (not (memq last-command | |
2f3eb3b6 MK |
1921 | '(viper-ex |
1922 | viper-command-argument | |
d5e52f99 MK |
1923 | t) |
1924 | ))) | |
1925 | "") | |
1926 | ((string= val "") (or default "")) | |
1927 | (t val)) | |
1928 | )) | |
1929 | ||
1930 | ||
1931 | \f | |
1932 | ;; insertion commands | |
1933 | ||
1934 | ;; Called when state changes from Insert Vi command mode. | |
1935 | ;; Repeats the insertion command if Insert state was entered with prefix | |
1936 | ;; argument > 1. | |
2f3eb3b6 MK |
1937 | (defun viper-repeat-insert-command () |
1938 | (let ((i-com (car viper-d-com)) | |
1939 | (val (nth 1 viper-d-com)) | |
1940 | (char (nth 2 viper-d-com))) | |
d5e52f99 MK |
1941 | (if (and val (> val 1)) ; first check that val is non-nil |
1942 | (progn | |
2f3eb3b6 MK |
1943 | (setq viper-d-com (list i-com (1- val) ?r nil nil nil)) |
1944 | (viper-repeat nil) | |
1945 | (setq viper-d-com (list i-com val char nil nil nil)) | |
d5e52f99 MK |
1946 | )))) |
1947 | ||
2f3eb3b6 | 1948 | (defun viper-insert (arg) |
d5e52f99 MK |
1949 | "Insert before point." |
1950 | (interactive "P") | |
2f3eb3b6 MK |
1951 | (viper-set-complex-command-for-undo) |
1952 | (let ((val (viper-p-val arg)) | |
1953 | (com (viper-getcom arg))) | |
1954 | (viper-set-destructive-command (list 'viper-insert val ?r nil nil nil)) | |
d5e52f99 | 1955 | (if com |
2f3eb3b6 MK |
1956 | (viper-loop val (viper-yank-last-insertion)) |
1957 | (viper-change-state-to-insert)))) | |
d5e52f99 | 1958 | |
2f3eb3b6 | 1959 | (defun viper-append (arg) |
d5e52f99 MK |
1960 | "Append after point." |
1961 | (interactive "P") | |
2f3eb3b6 MK |
1962 | (viper-set-complex-command-for-undo) |
1963 | (let ((val (viper-p-val arg)) | |
1964 | (com (viper-getcom arg))) | |
1965 | (viper-set-destructive-command (list 'viper-append val ?r nil nil nil)) | |
d5e52f99 MK |
1966 | (if (not (eolp)) (forward-char)) |
1967 | (if (equal com ?r) | |
2f3eb3b6 MK |
1968 | (viper-loop val (viper-yank-last-insertion)) |
1969 | (viper-change-state-to-insert)))) | |
d5e52f99 | 1970 | |
2f3eb3b6 | 1971 | (defun viper-Append (arg) |
d5e52f99 MK |
1972 | "Append at end of line." |
1973 | (interactive "P") | |
2f3eb3b6 MK |
1974 | (viper-set-complex-command-for-undo) |
1975 | (let ((val (viper-p-val arg)) | |
1976 | (com (viper-getcom arg))) | |
1977 | (viper-set-destructive-command (list 'viper-Append val ?r nil nil nil)) | |
d5e52f99 MK |
1978 | (end-of-line) |
1979 | (if (equal com ?r) | |
2f3eb3b6 MK |
1980 | (viper-loop val (viper-yank-last-insertion)) |
1981 | (viper-change-state-to-insert)))) | |
d5e52f99 | 1982 | |
2f3eb3b6 | 1983 | (defun viper-Insert (arg) |
d5e52f99 MK |
1984 | "Insert before first non-white." |
1985 | (interactive "P") | |
2f3eb3b6 MK |
1986 | (viper-set-complex-command-for-undo) |
1987 | (let ((val (viper-p-val arg)) | |
1988 | (com (viper-getcom arg))) | |
1989 | (viper-set-destructive-command (list 'viper-Insert val ?r nil nil nil)) | |
d5e52f99 MK |
1990 | (back-to-indentation) |
1991 | (if (equal com ?r) | |
2f3eb3b6 MK |
1992 | (viper-loop val (viper-yank-last-insertion)) |
1993 | (viper-change-state-to-insert)))) | |
d5e52f99 | 1994 | |
2f3eb3b6 | 1995 | (defun viper-open-line (arg) |
d5e52f99 MK |
1996 | "Open line below." |
1997 | (interactive "P") | |
2f3eb3b6 MK |
1998 | (viper-set-complex-command-for-undo) |
1999 | (let ((val (viper-p-val arg)) | |
2000 | (com (viper-getcom arg))) | |
2001 | (viper-set-destructive-command (list 'viper-open-line val ?r nil nil nil)) | |
d5e52f99 MK |
2002 | (let ((col (current-indentation))) |
2003 | (if (equal com ?r) | |
2f3eb3b6 | 2004 | (viper-loop val |
d5e52f99 MK |
2005 | (end-of-line) |
2006 | (newline 1) | |
2f3eb3b6 | 2007 | (if viper-auto-indent |
d5e52f99 | 2008 | (progn |
2f3eb3b6 MK |
2009 | (setq viper-cted t) |
2010 | (if viper-electric-mode | |
d5e52f99 MK |
2011 | (indent-according-to-mode) |
2012 | (indent-to col)) | |
2013 | )) | |
34317da2 | 2014 | (viper-yank-last-insertion)) |
d5e52f99 MK |
2015 | (end-of-line) |
2016 | (newline 1) | |
2f3eb3b6 | 2017 | (if viper-auto-indent |
d5e52f99 | 2018 | (progn |
2f3eb3b6 MK |
2019 | (setq viper-cted t) |
2020 | (if viper-electric-mode | |
d5e52f99 MK |
2021 | (indent-according-to-mode) |
2022 | (indent-to col)))) | |
2f3eb3b6 | 2023 | (viper-change-state-to-insert))))) |
d5e52f99 | 2024 | |
2f3eb3b6 | 2025 | (defun viper-Open-line (arg) |
d5e52f99 MK |
2026 | "Open line above." |
2027 | (interactive "P") | |
2f3eb3b6 MK |
2028 | (viper-set-complex-command-for-undo) |
2029 | (let ((val (viper-p-val arg)) | |
2030 | (com (viper-getcom arg))) | |
2031 | (viper-set-destructive-command (list 'viper-Open-line val ?r nil nil nil)) | |
d5e52f99 MK |
2032 | (let ((col (current-indentation))) |
2033 | (if (equal com ?r) | |
2f3eb3b6 | 2034 | (viper-loop val |
d5e52f99 MK |
2035 | (beginning-of-line) |
2036 | (open-line 1) | |
2f3eb3b6 | 2037 | (if viper-auto-indent |
d5e52f99 | 2038 | (progn |
2f3eb3b6 MK |
2039 | (setq viper-cted t) |
2040 | (if viper-electric-mode | |
d5e52f99 MK |
2041 | (indent-according-to-mode) |
2042 | (indent-to col)) | |
2043 | )) | |
34317da2 | 2044 | (viper-yank-last-insertion)) |
d5e52f99 MK |
2045 | (beginning-of-line) |
2046 | (open-line 1) | |
2f3eb3b6 | 2047 | (if viper-auto-indent |
d5e52f99 | 2048 | (progn |
2f3eb3b6 MK |
2049 | (setq viper-cted t) |
2050 | (if viper-electric-mode | |
d5e52f99 MK |
2051 | (indent-according-to-mode) |
2052 | (indent-to col)) | |
2053 | )) | |
2f3eb3b6 | 2054 | (viper-change-state-to-insert))))) |
d5e52f99 | 2055 | |
2f3eb3b6 | 2056 | (defun viper-open-line-at-point (arg) |
d5e52f99 MK |
2057 | "Open line at point." |
2058 | (interactive "P") | |
2f3eb3b6 MK |
2059 | (viper-set-complex-command-for-undo) |
2060 | (let ((val (viper-p-val arg)) | |
2061 | (com (viper-getcom arg))) | |
2062 | (viper-set-destructive-command | |
2063 | (list 'viper-open-line-at-point val ?r nil nil nil)) | |
d5e52f99 | 2064 | (if (equal com ?r) |
2f3eb3b6 | 2065 | (viper-loop val |
d5e52f99 | 2066 | (open-line 1) |
34317da2 | 2067 | (viper-yank-last-insertion)) |
d5e52f99 | 2068 | (open-line 1) |
2f3eb3b6 | 2069 | (viper-change-state-to-insert)))) |
d5e52f99 | 2070 | |
2f3eb3b6 | 2071 | (defun viper-substitute (arg) |
d5e52f99 MK |
2072 | "Substitute characters." |
2073 | (interactive "P") | |
2f3eb3b6 MK |
2074 | (let ((val (viper-p-val arg)) |
2075 | (com (viper-getcom arg))) | |
d5e52f99 MK |
2076 | (push-mark nil t) |
2077 | (forward-char val) | |
2078 | (if (equal com ?r) | |
2f3eb3b6 MK |
2079 | (viper-change-subr (mark t) (point)) |
2080 | (viper-change (mark t) (point))) | |
2081 | (viper-set-destructive-command (list 'viper-substitute val ?r nil nil nil)) | |
d5e52f99 MK |
2082 | )) |
2083 | ||
2f3eb3b6 MK |
2084 | ;; Command bound to S |
2085 | (defun viper-substitute-line (arg) | |
d5e52f99 MK |
2086 | "Substitute lines." |
2087 | (interactive "p") | |
2f3eb3b6 MK |
2088 | (viper-set-complex-command-for-undo) |
2089 | (viper-line (cons arg ?C))) | |
d5e52f99 MK |
2090 | |
2091 | ;; Prepare for replace | |
2f3eb3b6 MK |
2092 | (defun viper-start-replace () |
2093 | (setq viper-began-as-replace t | |
2094 | viper-sitting-in-replace t | |
34317da2 | 2095 | viper-replace-chars-to-delete 0) |
2f3eb3b6 MK |
2096 | (viper-add-hook |
2097 | 'viper-after-change-functions 'viper-replace-mode-spy-after t) | |
2098 | (viper-add-hook | |
2099 | 'viper-before-change-functions 'viper-replace-mode-spy-before t) | |
d5e52f99 | 2100 | ;; this will get added repeatedly, but no harm |
2f3eb3b6 MK |
2101 | (add-hook 'after-change-functions 'viper-after-change-sentinel t) |
2102 | (add-hook 'before-change-functions 'viper-before-change-sentinel t) | |
2103 | (viper-move-marker-locally 'viper-last-posn-in-replace-region | |
2104 | (viper-replace-start)) | |
2105 | (viper-add-hook | |
2106 | 'viper-post-command-hooks 'viper-replace-state-post-command-sentinel t) | |
2107 | (viper-add-hook | |
2108 | 'viper-pre-command-hooks 'viper-replace-state-pre-command-sentinel t) | |
d5e52f99 | 2109 | ;; guard against a smartie who switched from R-replace to normal replace |
2f3eb3b6 MK |
2110 | (viper-remove-hook |
2111 | 'viper-post-command-hooks 'viper-R-state-post-command-sentinel) | |
d5e52f99 MK |
2112 | (if overwrite-mode (overwrite-mode nil)) |
2113 | ) | |
2114 | ||
2115 | ||
2f3eb3b6 | 2116 | (defun viper-replace-mode-spy-before (beg end) |
34317da2 MK |
2117 | (setq viper-replace-region-chars-deleted (viper-chars-in-region beg end)) |
2118 | ) | |
d5e52f99 | 2119 | |
34317da2 MK |
2120 | ;; Invoked as an after-change-function to calculate how many chars have to be |
2121 | ;; deleted. This function may be called several times within a single command, | |
2122 | ;; if this command performs several separate buffer changes. Therefore, if adds | |
2123 | ;; up the number of chars inserted and subtracts the number of chars deleted. | |
2f3eb3b6 | 2124 | (defun viper-replace-mode-spy-after (beg end length) |
34317da2 MK |
2125 | (if (memq viper-intermediate-command |
2126 | '(dabbrev-expand repeating-insertion-from-ring)) | |
2127 | ;; Take special care of text insertion from insertion ring inside | |
2128 | ;; replacement overlays. | |
d5e52f99 | 2129 | (progn |
2f3eb3b6 MK |
2130 | (setq viper-replace-chars-to-delete 0) |
2131 | (viper-move-marker-locally | |
2132 | 'viper-last-posn-in-replace-region (point))) | |
d5e52f99 | 2133 | |
34317da2 MK |
2134 | (let* ((real-end (min end (viper-replace-end))) |
2135 | (column-shift (- (save-excursion (goto-char real-end) | |
2136 | (current-column)) | |
2137 | (save-excursion (goto-char beg) | |
2138 | (current-column)))) | |
2139 | (chars-deleted 0)) | |
2140 | ||
2141 | (if (> length 0) | |
2142 | (setq chars-deleted viper-replace-region-chars-deleted)) | |
2143 | (setq viper-replace-region-chars-deleted 0) | |
2144 | (setq viper-replace-chars-to-delete | |
2145 | (+ viper-replace-chars-to-delete | |
2146 | (- | |
2147 | ;; if column shift is bigger, due to a TAB insertion, take | |
2148 | ;; column-shift instead of the number of inserted chars | |
2149 | (max (viper-chars-in-region beg real-end) | |
2150 | ;; This test accounts for Chinese/Japanese/... chars, | |
2151 | ;; which occupy 2 columns instead of one. If we use | |
2152 | ;; column-shift here, we may delete two chars instead of | |
2153 | ;; one when the user types one Chinese character. Deleting | |
2154 | ;; two would be OK, if they were European chars, but it is | |
2155 | ;; not OK if they are Chinese chars. Since it is hard to | |
2156 | ;; figure out which characters are being deleted in any | |
2157 | ;; given region, we decided to treat Eastern and European | |
2158 | ;; characters equally, even though Eastern chars may | |
2159 | ;; occupy more columns. | |
2160 | (if (memq this-command '(self-insert-command | |
2161 | quoted-insert viper-insert-tab)) | |
2162 | column-shift | |
2163 | 0)) | |
2164 | ;; the number of deleted chars | |
2165 | chars-deleted))) | |
2166 | ||
2f3eb3b6 MK |
2167 | (viper-move-marker-locally |
2168 | 'viper-last-posn-in-replace-region | |
34317da2 | 2169 | (max (if (> end (viper-replace-end)) (viper-replace-end) end) |
2f3eb3b6 MK |
2170 | (or (marker-position viper-last-posn-in-replace-region) |
2171 | (viper-replace-start)) | |
d5e52f99 MK |
2172 | )) |
2173 | ||
d5e52f99 MK |
2174 | ))) |
2175 | ||
34317da2 MK |
2176 | ;; Make sure we don't delete more than needed. |
2177 | ;; This is executed at viper-last-posn-in-replace-region | |
2178 | (defsubst viper-trim-replace-chars-to-delete-if-necessary () | |
2179 | (setq viper-replace-chars-to-delete | |
2180 | (max 0 | |
2181 | (min viper-replace-chars-to-delete | |
2182 | ;; Don't delete more than to the end of repl overlay | |
2183 | (viper-chars-in-region | |
2184 | (viper-replace-end) viper-last-posn-in-replace-region) | |
2185 | ;; point is viper-last-posn-in-replace-region now | |
2186 | ;; So, this limits deletion to the end of line | |
2187 | (viper-chars-in-region (point) (viper-line-pos 'end)) | |
2188 | )))) | |
2189 | ||
2190 | ||
2191 | ;; Delete stuff between viper-last-posn-in-replace-region and the end of | |
2192 | ;; viper-replace-overlay-marker, if viper-last-posn-in-replace-region is within | |
2193 | ;; the overlay and current point is before the end of the overlay. | |
2194 | ;; Don't delete anything if current point is past the end of the overlay. | |
2195 | (defun viper-finish-change () | |
2f3eb3b6 MK |
2196 | (viper-remove-hook |
2197 | 'viper-after-change-functions 'viper-replace-mode-spy-after) | |
2198 | (viper-remove-hook | |
2199 | 'viper-before-change-functions 'viper-replace-mode-spy-before) | |
2200 | (viper-remove-hook | |
2201 | 'viper-post-command-hooks 'viper-replace-state-post-command-sentinel) | |
2202 | (viper-remove-hook | |
2203 | 'viper-pre-command-hooks 'viper-replace-state-pre-command-sentinel) | |
2204 | (viper-restore-cursor-color-after-replace) | |
2205 | (setq viper-sitting-in-replace nil) ; just in case we'll need to know it | |
d5e52f99 | 2206 | (save-excursion |
34317da2 MK |
2207 | (if (and viper-replace-overlay |
2208 | (viper-pos-within-region viper-last-posn-in-replace-region | |
2209 | (viper-replace-start) | |
2210 | (viper-replace-end)) | |
2211 | (< (point) (viper-replace-end))) | |
2212 | (delete-region | |
2213 | viper-last-posn-in-replace-region (viper-replace-end)))) | |
d5e52f99 | 2214 | |
2f3eb3b6 MK |
2215 | (if (eq viper-current-state 'replace-state) |
2216 | (viper-downgrade-to-insert)) | |
2217 | ;; replace mode ended => nullify viper-last-posn-in-replace-region | |
2218 | (viper-move-marker-locally 'viper-last-posn-in-replace-region nil) | |
2219 | (viper-hide-replace-overlay) | |
2220 | (viper-refresh-mode-line) | |
2221 | (viper-put-string-on-kill-ring viper-last-replace-region) | |
d5e52f99 MK |
2222 | ) |
2223 | ||
2224 | ;; Make STRING be the first element of the kill ring. | |
2f3eb3b6 | 2225 | (defun viper-put-string-on-kill-ring (string) |
d5e52f99 MK |
2226 | (setq kill-ring (cons string kill-ring)) |
2227 | (if (> (length kill-ring) kill-ring-max) | |
2228 | (setcdr (nthcdr (1- kill-ring-max) kill-ring) nil)) | |
2229 | (setq kill-ring-yank-pointer kill-ring)) | |
2230 | ||
2f3eb3b6 MK |
2231 | (defun viper-finish-R-mode () |
2232 | (viper-remove-hook | |
2233 | 'viper-post-command-hooks 'viper-R-state-post-command-sentinel) | |
2234 | (viper-remove-hook | |
2235 | 'viper-pre-command-hooks 'viper-replace-state-pre-command-sentinel) | |
2236 | (viper-downgrade-to-insert)) | |
d5e52f99 | 2237 | |
2f3eb3b6 | 2238 | (defun viper-start-R-mode () |
d5e52f99 MK |
2239 | ;; Leave arg as 1, not t: XEmacs insists that it must be a pos number |
2240 | (overwrite-mode 1) | |
2f3eb3b6 MK |
2241 | (viper-add-hook |
2242 | 'viper-post-command-hooks 'viper-R-state-post-command-sentinel t) | |
2243 | (viper-add-hook | |
2244 | 'viper-pre-command-hooks 'viper-replace-state-pre-command-sentinel t) | |
d5e52f99 | 2245 | ;; guard against a smartie who switched from R-replace to normal replace |
2f3eb3b6 MK |
2246 | (viper-remove-hook |
2247 | 'viper-post-command-hooks 'viper-replace-state-post-command-sentinel) | |
d5e52f99 MK |
2248 | ) |
2249 | ||
2250 | ||
2251 | ||
2f3eb3b6 | 2252 | (defun viper-replace-state-exit-cmd () |
d5e52f99 MK |
2253 | "Binding for keys that cause Replace state to switch to Vi or to Insert. |
2254 | These keys are ESC, RET, and LineFeed" | |
2255 | (interactive) | |
34317da2 | 2256 | (if overwrite-mode ; if in replace mode invoked via 'R' |
2f3eb3b6 | 2257 | (viper-finish-R-mode) |
34317da2 | 2258 | (viper-finish-change)) |
d5e52f99 | 2259 | (let (com) |
2f3eb3b6 MK |
2260 | (if (eq this-command 'viper-intercept-ESC-key) |
2261 | (setq com 'viper-exit-insert-state) | |
2262 | (viper-set-unread-command-events last-input-char) | |
d5e52f99 MK |
2263 | (setq com (key-binding (read-key-sequence nil)))) |
2264 | ||
2265 | (condition-case conds | |
2266 | (command-execute com) | |
2267 | (error | |
2f3eb3b6 | 2268 | (viper-message-conditions conds))) |
d5e52f99 | 2269 | ) |
2f3eb3b6 MK |
2270 | (viper-hide-replace-overlay)) |
2271 | ||
d5e52f99 | 2272 | |
2f3eb3b6 MK |
2273 | (defun viper-replace-state-carriage-return () |
2274 | "Carriage return in Viper replace state." | |
d5e52f99 MK |
2275 | (interactive) |
2276 | ;; If Emacs start supporting overlay maps, as it currently supports | |
2f3eb3b6 | 2277 | ;; text-property maps, we could do away with viper-replace-minor-mode and |
d5e52f99 MK |
2278 | ;; just have keymap attached to replace overlay. Then the "if part" of this |
2279 | ;; statement can be deleted. | |
2f3eb3b6 MK |
2280 | (if (or (< (point) (viper-replace-start)) |
2281 | (> (point) (viper-replace-end))) | |
2282 | (let (viper-replace-minor-mode com) | |
2283 | (viper-set-unread-command-events last-input-char) | |
d5e52f99 MK |
2284 | (setq com (key-binding (read-key-sequence nil))) |
2285 | (condition-case conds | |
2286 | (command-execute com) | |
2287 | (error | |
2f3eb3b6 MK |
2288 | (viper-message-conditions conds)))) |
2289 | (if (not viper-allow-multiline-replace-regions) | |
2290 | (viper-replace-state-exit-cmd) | |
2291 | (if (viper-same-line (point) (viper-replace-end)) | |
2292 | (viper-replace-state-exit-cmd) | |
2293 | ;; delete the rest of line | |
2294 | (delete-region (point) (viper-line-pos 'end)) | |
2295 | (save-excursion | |
2296 | (end-of-line) | |
2297 | (if (eobp) (error "Last line in buffer"))) | |
2298 | ;; skip to the next line | |
2299 | (forward-line 1) | |
2300 | (back-to-indentation) | |
2301 | )))) | |
d5e52f99 MK |
2302 | |
2303 | ||
2304 | ;; This is the function bound to 'R'---unlimited replace. | |
2305 | ;; Similar to Emacs's own overwrite-mode. | |
2f3eb3b6 | 2306 | (defun viper-overwrite (arg) |
d5e52f99 MK |
2307 | "Begin overwrite mode." |
2308 | (interactive "P") | |
2f3eb3b6 MK |
2309 | (let ((val (viper-p-val arg)) |
2310 | (com (viper-getcom arg)) (len)) | |
2311 | (viper-set-destructive-command (list 'viper-overwrite val ?r nil nil nil)) | |
d5e52f99 MK |
2312 | (if com |
2313 | (progn | |
2f3eb3b6 MK |
2314 | ;; Viper saves inserted text in viper-last-insertion |
2315 | (setq len (length viper-last-insertion)) | |
d5e52f99 | 2316 | (delete-char len) |
2f3eb3b6 MK |
2317 | (viper-loop val (viper-yank-last-insertion))) |
2318 | (setq last-command 'viper-overwrite) | |
2319 | (viper-set-complex-command-for-undo) | |
2320 | (viper-set-replace-overlay (point) (viper-line-pos 'end)) | |
2321 | (viper-change-state-to-replace) | |
d5e52f99 MK |
2322 | ))) |
2323 | ||
2324 | \f | |
2325 | ;; line commands | |
2326 | ||
2f3eb3b6 | 2327 | (defun viper-line (arg) |
d5e52f99 MK |
2328 | (let ((val (car arg)) |
2329 | (com (cdr arg))) | |
2f3eb3b6 | 2330 | (viper-move-marker-locally 'viper-com-point (point)) |
d5e52f99 | 2331 | (if (not (eobp)) |
2f3eb3b6 | 2332 | (viper-next-line-carefully (1- val))) |
d5e52f99 MK |
2333 | ;; this ensures that dd, cc, D, yy will do the right thing on the last |
2334 | ;; line of buffer when this line has no \n. | |
2f3eb3b6 MK |
2335 | (viper-add-newline-at-eob-if-necessary) |
2336 | (viper-execute-com 'viper-line val com)) | |
d5e52f99 MK |
2337 | (if (and (eobp) (not (bobp))) (forward-line -1)) |
2338 | ) | |
2339 | ||
2f3eb3b6 | 2340 | (defun viper-yank-line (arg) |
d5e52f99 MK |
2341 | "Yank ARG lines (in Vi's sense)." |
2342 | (interactive "P") | |
2f3eb3b6 MK |
2343 | (let ((val (viper-p-val arg))) |
2344 | (viper-line (cons val ?Y)))) | |
d5e52f99 MK |
2345 | |
2346 | \f | |
2347 | ;; region commands | |
2348 | ||
2f3eb3b6 | 2349 | (defun viper-region (arg) |
d5e52f99 MK |
2350 | "Execute command on a region." |
2351 | (interactive "P") | |
2f3eb3b6 MK |
2352 | (let ((val (viper-P-val arg)) |
2353 | (com (viper-getcom arg))) | |
2354 | (viper-move-marker-locally 'viper-com-point (point)) | |
d5e52f99 | 2355 | (exchange-point-and-mark) |
2f3eb3b6 | 2356 | (viper-execute-com 'viper-region val com))) |
d5e52f99 | 2357 | |
2f3eb3b6 | 2358 | (defun viper-Region (arg) |
d5e52f99 MK |
2359 | "Execute command on a Region." |
2360 | (interactive "P") | |
2f3eb3b6 MK |
2361 | (let ((val (viper-P-val arg)) |
2362 | (com (viper-getCom arg))) | |
2363 | (viper-move-marker-locally 'viper-com-point (point)) | |
d5e52f99 | 2364 | (exchange-point-and-mark) |
2f3eb3b6 | 2365 | (viper-execute-com 'viper-Region val com))) |
d5e52f99 | 2366 | |
2f3eb3b6 | 2367 | (defun viper-replace-char (arg) |
d5e52f99 MK |
2368 | "Replace the following ARG chars by the character read." |
2369 | (interactive "P") | |
2370 | (if (and (eolp) (bolp)) (error "No character to replace here")) | |
2f3eb3b6 MK |
2371 | (let ((val (viper-p-val arg)) |
2372 | (com (viper-getcom arg))) | |
2373 | (viper-replace-char-subr com val) | |
d5e52f99 | 2374 | (if (and (eolp) (not (bolp))) (forward-char 1)) |
34317da2 MK |
2375 | (setq viper-this-command-keys |
2376 | (format "%sr" (if (integerp arg) arg ""))) | |
2f3eb3b6 MK |
2377 | (viper-set-destructive-command |
2378 | (list 'viper-replace-char val ?r nil viper-d-char nil)) | |
d5e52f99 MK |
2379 | )) |
2380 | ||
2f3eb3b6 | 2381 | (defun viper-replace-char-subr (com arg) |
34317da2 | 2382 | (let (char) |
d5e52f99 | 2383 | (setq char (if (equal com ?r) |
2f3eb3b6 | 2384 | viper-d-char |
d5e52f99 | 2385 | (read-char))) |
34317da2 MK |
2386 | (let (inhibit-quit) ; preserve consistency of undo-list and iso-accents |
2387 | (if (and viper-automatic-iso-accents (memq char '(?' ?\" ?^ ?~))) | |
2388 | ;; get European characters | |
2389 | (progn | |
2390 | (viper-set-iso-accents-mode t) | |
2391 | (viper-set-unread-command-events char) | |
2392 | (setq char (aref (read-key-sequence nil) 0)) | |
2393 | (viper-set-iso-accents-mode nil))) | |
2394 | (viper-set-complex-command-for-undo) | |
2395 | (if (eq char ?\C-m) (setq char ?\n)) | |
2396 | (if (and viper-special-input-method (fboundp 'quail-start-translation)) | |
2397 | ;; get Intl. characters | |
2398 | (progn | |
2399 | (viper-set-input-method t) | |
2400 | (setq last-command-event | |
2401 | (viper-copy-event | |
2402 | (if viper-xemacs-p (character-to-event char) char))) | |
2403 | (delete-char 1 t) | |
2404 | (condition-case nil | |
2405 | (if com | |
2406 | (insert char) | |
2407 | (if viper-emacs-p | |
2408 | (quail-start-translation 1) | |
2409 | (quail-start-translation))) | |
2410 | (error)) | |
2411 | ;; quail translation failed | |
2412 | (if (and (not (stringp quail-current-str)) | |
2413 | (not (viper-characterp quail-current-str))) | |
2414 | (progn | |
2415 | (viper-adjust-undo) | |
2416 | (undo-start) | |
2417 | (undo-more 1) | |
2418 | (viper-set-input-method nil) | |
2419 | (error "Composing character failed, changes undone"))) | |
2420 | ;; quail translation seems ok | |
2421 | (or com | |
2422 | ;;(setq char quail-current-str)) | |
2423 | (setq char (viper-char-at-pos 'backward))) | |
2424 | (setq viper-d-char char) | |
2425 | (viper-loop (1- (if (> arg 0) arg (- arg))) | |
2426 | (delete-char 1 t) | |
2427 | (insert char)) | |
2428 | (viper-set-input-method nil)) | |
2429 | (delete-char arg t) | |
2430 | (setq viper-d-char char) | |
2431 | (viper-loop (if (> arg 0) arg (- arg)) | |
2432 | (insert char))) | |
2433 | (viper-adjust-undo) | |
2434 | (backward-char arg)))) | |
d5e52f99 MK |
2435 | |
2436 | \f | |
2437 | ;; basic cursor movement. j, k, l, h commands. | |
2438 | ||
2f3eb3b6 | 2439 | (defun viper-forward-char (arg) |
d5e52f99 MK |
2440 | "Move point right ARG characters (left if ARG negative). |
2441 | On reaching end of line, stop and signal error." | |
2442 | (interactive "P") | |
2f3eb3b6 MK |
2443 | (viper-leave-region-active) |
2444 | (let ((val (viper-p-val arg)) | |
2445 | (com (viper-getcom arg))) | |
2446 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
2447 | (if viper-ex-style-motion | |
d5e52f99 MK |
2448 | (progn |
2449 | ;; the boundary condition check gets weird here because | |
2450 | ;; forward-char may be the parameter of a delete, and 'dl' works | |
2451 | ;; just like 'x' for the last char on a line, so we have to allow | |
2f3eb3b6 | 2452 | ;; the forward motion before the 'viper-execute-com', but, of |
d5e52f99 | 2453 | ;; course, 'dl' doesn't work on an empty line, so we have to |
2f3eb3b6 | 2454 | ;; catch that condition before 'viper-execute-com' |
d5e52f99 | 2455 | (if (and (eolp) (bolp)) (error "") (forward-char val)) |
2f3eb3b6 | 2456 | (if com (viper-execute-com 'viper-forward-char val com)) |
d5e52f99 MK |
2457 | (if (eolp) (progn (backward-char 1) (error "")))) |
2458 | (forward-char val) | |
2f3eb3b6 | 2459 | (if com (viper-execute-com 'viper-forward-char val com))))) |
d5e52f99 | 2460 | |
2f3eb3b6 | 2461 | (defun viper-backward-char (arg) |
d5e52f99 MK |
2462 | "Move point left ARG characters (right if ARG negative). |
2463 | On reaching beginning of line, stop and signal error." | |
2464 | (interactive "P") | |
2f3eb3b6 MK |
2465 | (viper-leave-region-active) |
2466 | (let ((val (viper-p-val arg)) | |
2467 | (com (viper-getcom arg))) | |
2468 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
2469 | (if viper-ex-style-motion | |
d5e52f99 MK |
2470 | (progn |
2471 | (if (bolp) (error "") (backward-char val)) | |
2f3eb3b6 | 2472 | (if com (viper-execute-com 'viper-backward-char val com))) |
d5e52f99 | 2473 | (backward-char val) |
2f3eb3b6 | 2474 | (if com (viper-execute-com 'viper-backward-char val com))))) |
d5e52f99 MK |
2475 | |
2476 | ;; Like forward-char, but doesn't move at end of buffer. | |
34317da2 MK |
2477 | ;; Returns distance traveled |
2478 | ;; (positive or 0, if arg positive; negative if arg negative). | |
2f3eb3b6 | 2479 | (defun viper-forward-char-carefully (&optional arg) |
d5e52f99 | 2480 | (setq arg (or arg 1)) |
34317da2 MK |
2481 | (let ((pt (point))) |
2482 | (condition-case nil | |
2483 | (forward-char arg) | |
2484 | (error)) | |
2485 | (if (< (point) pt) ; arg was negative | |
2486 | (- (viper-chars-in-region pt (point))) | |
2487 | (viper-chars-in-region pt (point))))) | |
d5e52f99 | 2488 | |
34317da2 MK |
2489 | ;; Like backward-char, but doesn't move at beg of buffer. |
2490 | ;; Returns distance traveled | |
2491 | ;; (negative or 0, if arg positive; positive if arg negative). | |
2f3eb3b6 | 2492 | (defun viper-backward-char-carefully (&optional arg) |
d5e52f99 | 2493 | (setq arg (or arg 1)) |
34317da2 MK |
2494 | (let ((pt (point))) |
2495 | (condition-case nil | |
2496 | (backward-char arg) | |
2497 | (error)) | |
2498 | (if (> (point) pt) ; arg was negative | |
2499 | (viper-chars-in-region pt (point)) | |
2500 | (- (viper-chars-in-region pt (point)))))) | |
d5e52f99 | 2501 | |
2f3eb3b6 | 2502 | (defun viper-next-line-carefully (arg) |
d5e52f99 MK |
2503 | (condition-case nil |
2504 | (next-line arg) | |
2505 | (error nil))) | |
2506 | ||
2507 | ||
2508 | \f | |
2509 | ;;; Word command | |
2510 | ||
2f3eb3b6 MK |
2511 | ;; Words are formed from alpha's and nonalphas - <sp>,\t\n are separators for |
2512 | ;; word movement. When executed with a destructive command, \n is usually left | |
2513 | ;; untouched for the last word. Viper uses syntax table to determine what is a | |
2514 | ;; word and what is a separator. However, \n is always a separator. Also, if | |
2515 | ;; viper-syntax-preference is 'vi, then `_' is part of the word. | |
d5e52f99 MK |
2516 | |
2517 | ;; skip only one \n | |
2f3eb3b6 | 2518 | (defun viper-skip-separators (forward) |
d5e52f99 MK |
2519 | (if forward |
2520 | (progn | |
2f3eb3b6 | 2521 | (viper-skip-all-separators-forward 'within-line) |
d5e52f99 MK |
2522 | (if (looking-at "\n") |
2523 | (progn | |
2524 | (forward-char) | |
2f3eb3b6 MK |
2525 | (viper-skip-all-separators-forward 'within-line)))) |
2526 | (viper-skip-all-separators-backward 'within-line) | |
34317da2 | 2527 | (viper-backward-char-carefully) |
d5e52f99 | 2528 | (if (looking-at "\n") |
2f3eb3b6 | 2529 | (viper-skip-all-separators-backward 'within-line) |
d5e52f99 MK |
2530 | (forward-char)))) |
2531 | ||
2f3eb3b6 | 2532 | (defun viper-forward-word-kernel (val) |
d5e52f99 | 2533 | (while (> val 0) |
2f3eb3b6 MK |
2534 | (cond ((viper-looking-at-alpha) |
2535 | (viper-skip-alpha-forward "_") | |
2536 | (viper-skip-separators t)) | |
2537 | ((viper-looking-at-separator) | |
2538 | (viper-skip-separators t)) | |
2539 | ((not (viper-looking-at-alphasep)) | |
2540 | (viper-skip-nonalphasep-forward) | |
2541 | (viper-skip-separators t))) | |
d5e52f99 MK |
2542 | (setq val (1- val)))) |
2543 | ||
34317da2 MK |
2544 | ;; first skip non-newline separators backward, then skip \n. Then, if TWICE is |
2545 | ;; non-nil, skip non-\n back again, but don't overshoot the limit LIM. | |
2546 | (defun viper-separator-skipback-special (twice lim) | |
2547 | (let ((prev-char (viper-char-at-pos 'backward)) | |
2548 | (saved-point (point))) | |
2549 | ;; skip non-newline separators backward | |
2550 | (while (and (not (memq prev-char '(nil \n))) | |
2551 | (< lim (point)) | |
2552 | ;; must be non-newline separator | |
2553 | (if (eq viper-syntax-preference 'strict-vi) | |
2554 | (memq prev-char '(?\ ?\t)) | |
2555 | (memq (char-syntax prev-char) '(?\ ?-)))) | |
2556 | (viper-backward-char-carefully) | |
2557 | (setq prev-char (viper-char-at-pos 'backward))) | |
2558 | ||
2559 | (if (and (< lim (point)) (eq prev-char ?\n)) | |
2560 | (backward-char) | |
2561 | ;; If we skipped to the next word and the prefix of this line doesn't | |
2562 | ;; consist of separators preceded by a newline, then don't skip backwards | |
2563 | ;; at all. | |
2564 | (goto-char saved-point)) | |
2565 | (setq prev-char (viper-char-at-pos 'backward)) | |
2566 | ||
2567 | ;; skip again, but make sure we don't overshoot the limit | |
2568 | (if twice | |
2569 | (while (and (not (memq prev-char '(nil \n))) | |
2570 | (< lim (point)) | |
2571 | ;; must be non-newline separator | |
2572 | (if (eq viper-syntax-preference 'strict-vi) | |
2573 | (memq prev-char '(?\ ?\t)) | |
2574 | (memq (char-syntax prev-char) '(?\ ?-)))) | |
2575 | (viper-backward-char-carefully) | |
2576 | (setq prev-char (viper-char-at-pos 'backward)))) | |
2577 | ||
2578 | (if (= (point) lim) | |
2579 | (viper-forward-char-carefully)) | |
2580 | )) | |
d5e52f99 MK |
2581 | |
2582 | ||
2f3eb3b6 | 2583 | (defun viper-forward-word (arg) |
d5e52f99 MK |
2584 | "Forward word." |
2585 | (interactive "P") | |
2f3eb3b6 MK |
2586 | (viper-leave-region-active) |
2587 | (let ((val (viper-p-val arg)) | |
2588 | (com (viper-getcom arg))) | |
2589 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
2590 | (viper-forward-word-kernel val) | |
d5e52f99 MK |
2591 | (if com (progn |
2592 | (cond ((memq com (list ?c (- ?c))) | |
34317da2 | 2593 | (viper-separator-skipback-special 'twice viper-com-point)) |
d5e52f99 MK |
2594 | ;; Yank words including the whitespace, but not newline |
2595 | ((memq com (list ?y (- ?y))) | |
34317da2 | 2596 | (viper-separator-skipback-special nil viper-com-point)) |
2f3eb3b6 | 2597 | ((viper-dotable-command-p com) |
34317da2 | 2598 | (viper-separator-skipback-special nil viper-com-point))) |
2f3eb3b6 | 2599 | (viper-execute-com 'viper-forward-word val com))))) |
d5e52f99 MK |
2600 | |
2601 | ||
2f3eb3b6 | 2602 | (defun viper-forward-Word (arg) |
d5e52f99 MK |
2603 | "Forward word delimited by white characters." |
2604 | (interactive "P") | |
2f3eb3b6 MK |
2605 | (viper-leave-region-active) |
2606 | (let ((val (viper-p-val arg)) | |
2607 | (com (viper-getcom arg))) | |
2608 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
2609 | (viper-loop val | |
2f3eb3b6 | 2610 | (viper-skip-nonseparators 'forward) |
34317da2 | 2611 | (viper-skip-separators t)) |
d5e52f99 MK |
2612 | (if com (progn |
2613 | (cond ((memq com (list ?c (- ?c))) | |
34317da2 | 2614 | (viper-separator-skipback-special 'twice viper-com-point)) |
d5e52f99 MK |
2615 | ;; Yank words including the whitespace, but not newline |
2616 | ((memq com (list ?y (- ?y))) | |
34317da2 | 2617 | (viper-separator-skipback-special nil viper-com-point)) |
2f3eb3b6 | 2618 | ((viper-dotable-command-p com) |
34317da2 | 2619 | (viper-separator-skipback-special nil viper-com-point))) |
2f3eb3b6 | 2620 | (viper-execute-com 'viper-forward-Word val com))))) |
d5e52f99 MK |
2621 | |
2622 | ||
2623 | ;; this is a bit different from Vi, but Vi's end of word | |
2624 | ;; makes no sense whatsoever | |
2f3eb3b6 MK |
2625 | (defun viper-end-of-word-kernel () |
2626 | (if (viper-end-of-word-p) (forward-char)) | |
2627 | (if (viper-looking-at-separator) | |
2628 | (viper-skip-all-separators-forward)) | |
d5e52f99 | 2629 | |
2f3eb3b6 MK |
2630 | (cond ((viper-looking-at-alpha) (viper-skip-alpha-forward "_")) |
2631 | ((not (viper-looking-at-alphasep)) (viper-skip-nonalphasep-forward))) | |
2632 | (viper-backward-char-carefully)) | |
d5e52f99 | 2633 | |
2f3eb3b6 | 2634 | (defun viper-end-of-word-p () |
d5e52f99 MK |
2635 | (or (eobp) |
2636 | (save-excursion | |
2f3eb3b6 | 2637 | (cond ((viper-looking-at-alpha) |
d5e52f99 | 2638 | (forward-char) |
2f3eb3b6 MK |
2639 | (not (viper-looking-at-alpha))) |
2640 | ((not (viper-looking-at-alphasep)) | |
d5e52f99 | 2641 | (forward-char) |
2f3eb3b6 | 2642 | (viper-looking-at-alphasep)))))) |
d5e52f99 MK |
2643 | |
2644 | ||
2f3eb3b6 | 2645 | (defun viper-end-of-word (arg &optional careful) |
d5e52f99 MK |
2646 | "Move point to end of current word." |
2647 | (interactive "P") | |
2f3eb3b6 MK |
2648 | (viper-leave-region-active) |
2649 | (let ((val (viper-p-val arg)) | |
2650 | (com (viper-getcom arg))) | |
2651 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
2652 | (viper-loop val (viper-end-of-word-kernel)) | |
d5e52f99 MK |
2653 | (if com |
2654 | (progn | |
2655 | (forward-char) | |
2f3eb3b6 | 2656 | (viper-execute-com 'viper-end-of-word val com))))) |
d5e52f99 | 2657 | |
2f3eb3b6 | 2658 | (defun viper-end-of-Word (arg) |
d5e52f99 MK |
2659 | "Forward to end of word delimited by white character." |
2660 | (interactive "P") | |
2f3eb3b6 MK |
2661 | (viper-leave-region-active) |
2662 | (let ((val (viper-p-val arg)) | |
2663 | (com (viper-getcom arg))) | |
2664 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
2665 | (viper-loop val | |
2f3eb3b6 MK |
2666 | (viper-end-of-word-kernel) |
2667 | (viper-skip-nonseparators 'forward) | |
34317da2 | 2668 | (backward-char)) |
d5e52f99 MK |
2669 | (if com |
2670 | (progn | |
2671 | (forward-char) | |
2f3eb3b6 | 2672 | (viper-execute-com 'viper-end-of-Word val com))))) |
d5e52f99 | 2673 | |
2f3eb3b6 | 2674 | (defun viper-backward-word-kernel (val) |
d5e52f99 | 2675 | (while (> val 0) |
34317da2 | 2676 | (viper-backward-char-carefully) |
2f3eb3b6 MK |
2677 | (cond ((viper-looking-at-alpha) |
2678 | (viper-skip-alpha-backward "_")) | |
2679 | ((viper-looking-at-separator) | |
d5e52f99 | 2680 | (forward-char) |
2f3eb3b6 | 2681 | (viper-skip-separators nil) |
34317da2 | 2682 | (viper-backward-char-carefully) |
2f3eb3b6 MK |
2683 | (cond ((viper-looking-at-alpha) |
2684 | (viper-skip-alpha-backward "_")) | |
2685 | ((not (viper-looking-at-alphasep)) | |
2686 | (viper-skip-nonalphasep-backward)) | |
34317da2 | 2687 | ((bobp)) ; could still be at separator, but at beg of buffer |
d5e52f99 | 2688 | (t (forward-char)))) |
2f3eb3b6 MK |
2689 | ((not (viper-looking-at-alphasep)) |
2690 | (viper-skip-nonalphasep-backward))) | |
d5e52f99 MK |
2691 | (setq val (1- val)))) |
2692 | ||
2f3eb3b6 | 2693 | (defun viper-backward-word (arg) |
d5e52f99 MK |
2694 | "Backward word." |
2695 | (interactive "P") | |
2f3eb3b6 MK |
2696 | (viper-leave-region-active) |
2697 | (let ((val (viper-p-val arg)) | |
2698 | (com (viper-getcom arg))) | |
d5e52f99 MK |
2699 | (if com |
2700 | (let (i) | |
2701 | (if (setq i (save-excursion (backward-char) (looking-at "\n"))) | |
2702 | (backward-char)) | |
2f3eb3b6 | 2703 | (viper-move-marker-locally 'viper-com-point (point)) |
d5e52f99 | 2704 | (if i (forward-char)))) |
2f3eb3b6 MK |
2705 | (viper-backward-word-kernel val) |
2706 | (if com (viper-execute-com 'viper-backward-word val com)))) | |
d5e52f99 | 2707 | |
2f3eb3b6 | 2708 | (defun viper-backward-Word (arg) |
d5e52f99 MK |
2709 | "Backward word delimited by white character." |
2710 | (interactive "P") | |
2f3eb3b6 MK |
2711 | (viper-leave-region-active) |
2712 | (let ((val (viper-p-val arg)) | |
2713 | (com (viper-getcom arg))) | |
d5e52f99 MK |
2714 | (if com |
2715 | (let (i) | |
2716 | (if (setq i (save-excursion (backward-char) (looking-at "\n"))) | |
2717 | (backward-char)) | |
2f3eb3b6 | 2718 | (viper-move-marker-locally 'viper-com-point (point)) |
d5e52f99 | 2719 | (if i (forward-char)))) |
2f3eb3b6 | 2720 | (viper-loop val |
34317da2 MK |
2721 | (viper-skip-separators nil) ; nil means backward here |
2722 | (viper-skip-nonseparators 'backward)) | |
2f3eb3b6 | 2723 | (if com (viper-execute-com 'viper-backward-Word val com)))) |
d5e52f99 MK |
2724 | |
2725 | ||
2726 | \f | |
2727 | ;; line commands | |
2728 | ||
2f3eb3b6 | 2729 | (defun viper-beginning-of-line (arg) |
d5e52f99 MK |
2730 | "Go to beginning of line." |
2731 | (interactive "P") | |
2f3eb3b6 MK |
2732 | (viper-leave-region-active) |
2733 | (let ((val (viper-p-val arg)) | |
2734 | (com (viper-getcom arg))) | |
2735 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
d5e52f99 | 2736 | (beginning-of-line val) |
2f3eb3b6 | 2737 | (if com (viper-execute-com 'viper-beginning-of-line val com)))) |
d5e52f99 | 2738 | |
2f3eb3b6 | 2739 | (defun viper-bol-and-skip-white (arg) |
d5e52f99 MK |
2740 | "Beginning of line at first non-white character." |
2741 | (interactive "P") | |
2f3eb3b6 MK |
2742 | (viper-leave-region-active) |
2743 | (let ((val (viper-p-val arg)) | |
2744 | (com (viper-getcom arg))) | |
2745 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
d5e52f99 | 2746 | (forward-to-indentation (1- val)) |
2f3eb3b6 | 2747 | (if com (viper-execute-com 'viper-bol-and-skip-white val com)))) |
d5e52f99 | 2748 | |
2f3eb3b6 | 2749 | (defun viper-goto-eol (arg) |
d5e52f99 MK |
2750 | "Go to end of line." |
2751 | (interactive "P") | |
2f3eb3b6 MK |
2752 | (viper-leave-region-active) |
2753 | (let ((val (viper-p-val arg)) | |
2754 | (com (viper-getcom arg))) | |
2755 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
d5e52f99 | 2756 | (end-of-line val) |
2f3eb3b6 MK |
2757 | (if com (viper-execute-com 'viper-goto-eol val com)) |
2758 | (if viper-ex-style-motion | |
d5e52f99 | 2759 | (if (and (eolp) (not (bolp)) |
2f3eb3b6 MK |
2760 | ;; a fix for viper-change-to-eol |
2761 | (not (equal viper-current-state 'insert-state))) | |
d5e52f99 MK |
2762 | (backward-char 1) |
2763 | )))) | |
2764 | ||
2765 | ||
2f3eb3b6 | 2766 | (defun viper-goto-col (arg) |
d5e52f99 MK |
2767 | "Go to ARG's column." |
2768 | (interactive "P") | |
2f3eb3b6 MK |
2769 | (viper-leave-region-active) |
2770 | (let ((val (viper-p-val arg)) | |
2771 | (com (viper-getcom arg)) | |
d5e52f99 | 2772 | line-len) |
34317da2 MK |
2773 | (setq line-len |
2774 | (viper-chars-in-region | |
2775 | (viper-line-pos 'start) (viper-line-pos 'end))) | |
2f3eb3b6 | 2776 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
d5e52f99 MK |
2777 | (beginning-of-line) |
2778 | (forward-char (1- (min line-len val))) | |
2779 | (while (> (current-column) (1- val)) | |
2780 | (backward-char 1)) | |
2f3eb3b6 | 2781 | (if com (viper-execute-com 'viper-goto-col val com)) |
d5e52f99 MK |
2782 | (save-excursion |
2783 | (end-of-line) | |
2784 | (if (> val (current-column)) (error ""))) | |
2785 | )) | |
2786 | ||
2787 | ||
2f3eb3b6 | 2788 | (defun viper-next-line (arg) |
d5e52f99 MK |
2789 | "Go to next line." |
2790 | (interactive "P") | |
2f3eb3b6 MK |
2791 | (viper-leave-region-active) |
2792 | (let ((val (viper-p-val arg)) | |
2793 | (com (viper-getCom arg))) | |
2794 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
d5e52f99 | 2795 | (next-line val) |
2f3eb3b6 | 2796 | (if viper-ex-style-motion |
d5e52f99 MK |
2797 | (if (and (eolp) (not (bolp))) (backward-char 1))) |
2798 | (setq this-command 'next-line) | |
2f3eb3b6 | 2799 | (if com (viper-execute-com 'viper-next-line val com)))) |
d5e52f99 | 2800 | |
2f3eb3b6 | 2801 | (defun viper-next-line-at-bol (arg) |
d5e52f99 MK |
2802 | "Next line at beginning of line." |
2803 | (interactive "P") | |
2f3eb3b6 | 2804 | (viper-leave-region-active) |
d5e52f99 MK |
2805 | (save-excursion |
2806 | (end-of-line) | |
2807 | (if (eobp) (error "Last line in buffer"))) | |
2f3eb3b6 MK |
2808 | (let ((val (viper-p-val arg)) |
2809 | (com (viper-getCom arg))) | |
2810 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
d5e52f99 MK |
2811 | (forward-line val) |
2812 | (back-to-indentation) | |
2f3eb3b6 | 2813 | (if com (viper-execute-com 'viper-next-line-at-bol val com)))) |
d5e52f99 | 2814 | |
2f3eb3b6 | 2815 | (defun viper-previous-line (arg) |
d5e52f99 MK |
2816 | "Go to previous line." |
2817 | (interactive "P") | |
2f3eb3b6 MK |
2818 | (viper-leave-region-active) |
2819 | (let ((val (viper-p-val arg)) | |
2820 | (com (viper-getCom arg))) | |
2821 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
d5e52f99 | 2822 | (previous-line val) |
2f3eb3b6 | 2823 | (if viper-ex-style-motion |
d5e52f99 MK |
2824 | (if (and (eolp) (not (bolp))) (backward-char 1))) |
2825 | (setq this-command 'previous-line) | |
2f3eb3b6 | 2826 | (if com (viper-execute-com 'viper-previous-line val com)))) |
d5e52f99 MK |
2827 | |
2828 | ||
2f3eb3b6 | 2829 | (defun viper-previous-line-at-bol (arg) |
d5e52f99 MK |
2830 | "Previous line at beginning of line." |
2831 | (interactive "P") | |
2f3eb3b6 | 2832 | (viper-leave-region-active) |
d5e52f99 MK |
2833 | (save-excursion |
2834 | (beginning-of-line) | |
2835 | (if (bobp) (error "First line in buffer"))) | |
2f3eb3b6 MK |
2836 | (let ((val (viper-p-val arg)) |
2837 | (com (viper-getCom arg))) | |
2838 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
d5e52f99 MK |
2839 | (forward-line (- val)) |
2840 | (back-to-indentation) | |
2f3eb3b6 | 2841 | (if com (viper-execute-com 'viper-previous-line val com)))) |
d5e52f99 | 2842 | |
2f3eb3b6 | 2843 | (defun viper-change-to-eol (arg) |
d5e52f99 MK |
2844 | "Change to end of line." |
2845 | (interactive "P") | |
2f3eb3b6 | 2846 | (viper-goto-eol (cons arg ?c))) |
d5e52f99 | 2847 | |
2f3eb3b6 | 2848 | (defun viper-kill-line (arg) |
d5e52f99 MK |
2849 | "Delete line." |
2850 | (interactive "P") | |
2f3eb3b6 | 2851 | (viper-goto-eol (cons arg ?d))) |
d5e52f99 | 2852 | |
2f3eb3b6 | 2853 | (defun viper-erase-line (arg) |
d5e52f99 MK |
2854 | "Erase line." |
2855 | (interactive "P") | |
2f3eb3b6 | 2856 | (viper-beginning-of-line (cons arg ?d))) |
d5e52f99 MK |
2857 | |
2858 | \f | |
2859 | ;;; Moving around | |
2860 | ||
2f3eb3b6 | 2861 | (defun viper-goto-line (arg) |
d5e52f99 MK |
2862 | "Go to ARG's line. Without ARG go to end of buffer." |
2863 | (interactive "P") | |
2f3eb3b6 MK |
2864 | (let ((val (viper-P-val arg)) |
2865 | (com (viper-getCom arg))) | |
2866 | (viper-move-marker-locally 'viper-com-point (point)) | |
2867 | (viper-deactivate-mark) | |
d5e52f99 MK |
2868 | (push-mark nil t) |
2869 | (if (null val) | |
2870 | (goto-char (point-max)) | |
2871 | (goto-char (point-min)) | |
2872 | (forward-line (1- val))) | |
2873 | ||
2874 | ;; positioning is done twice: before and after command execution | |
2875 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
2876 | (back-to-indentation) | |
2877 | ||
2f3eb3b6 | 2878 | (if com (viper-execute-com 'viper-goto-line val com)) |
d5e52f99 MK |
2879 | |
2880 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
2881 | (back-to-indentation) | |
2882 | )) | |
2883 | ||
2884 | ;; Find ARG's occurrence of CHAR on the current line. | |
2885 | ;; If FORWARD then search is forward, otherwise backward. OFFSET is used to | |
2886 | ;; adjust point after search. | |
2f3eb3b6 | 2887 | (defun viper-find-char (arg char forward offset) |
d5e52f99 MK |
2888 | (or (char-or-string-p char) (error "")) |
2889 | (let ((arg (if forward arg (- arg))) | |
2f3eb3b6 MK |
2890 | (cmd (if (eq viper-intermediate-command 'viper-repeat) |
2891 | (nth 5 viper-d-com) | |
2892 | (viper-array-to-string (this-command-keys)))) | |
d5e52f99 MK |
2893 | point) |
2894 | (save-excursion | |
2895 | (save-restriction | |
2896 | (if (> arg 0) | |
2897 | (narrow-to-region | |
2898 | ;; forward search begins here | |
2899 | (if (eolp) (error "Command `%s': At end of line" cmd) (point)) | |
2900 | ;; forward search ends here | |
2901 | (progn (end-of-line) (point))) | |
2902 | (narrow-to-region | |
2903 | ;; backward search begins from here | |
2904 | (if (bolp) | |
2905 | (error "Command `%s': At beginning of line" cmd) (point)) | |
2906 | ;; backward search ends here | |
2907 | (progn (beginning-of-line) (point)))) | |
2908 | ;; if arg > 0, point is forwarded before search. | |
2909 | (if (> arg 0) (goto-char (1+ (point-min))) | |
2910 | (goto-char (point-max))) | |
2911 | (if (let ((case-fold-search nil)) | |
2912 | (search-forward (char-to-string char) nil 0 arg)) | |
2913 | (setq point (point)) | |
2914 | (error "Command `%s': `%c' not found" cmd char)))) | |
34317da2 MK |
2915 | (goto-char point) |
2916 | (if (> arg 0) | |
2917 | (backward-char (if offset 2 1)) | |
2918 | (forward-char (if offset 1 0))))) | |
d5e52f99 | 2919 | |
2f3eb3b6 | 2920 | (defun viper-find-char-forward (arg) |
d5e52f99 MK |
2921 | "Find char on the line. |
2922 | If called interactively read the char to find from the terminal, and if | |
2f3eb3b6 | 2923 | called from viper-repeat, the char last used is used. This behaviour is |
d5e52f99 MK |
2924 | controlled by the sign of prefix numeric value." |
2925 | (interactive "P") | |
2f3eb3b6 MK |
2926 | (let ((val (viper-p-val arg)) |
2927 | (com (viper-getcom arg)) | |
2928 | (cmd-representation (nth 5 viper-d-com))) | |
d5e52f99 MK |
2929 | (if (> val 0) |
2930 | ;; this means that the function was called interactively | |
2f3eb3b6 MK |
2931 | (setq viper-f-char (read-char) |
2932 | viper-f-forward t | |
2933 | viper-f-offset nil) | |
2934 | ;; viper-repeat --- set viper-F-char from command-keys | |
2935 | (setq viper-F-char (if (stringp cmd-representation) | |
2936 | (viper-seq-last-elt cmd-representation) | |
2937 | viper-F-char) | |
2938 | viper-f-char viper-F-char) | |
d5e52f99 | 2939 | (setq val (- val))) |
2f3eb3b6 MK |
2940 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
2941 | (viper-find-char | |
2942 | val (if (> (viper-p-val arg) 0) viper-f-char viper-F-char) t nil) | |
d5e52f99 MK |
2943 | (setq val (- val)) |
2944 | (if com | |
2945 | (progn | |
2f3eb3b6 | 2946 | (setq viper-F-char viper-f-char) ; set new viper-F-char |
d5e52f99 | 2947 | (forward-char) |
2f3eb3b6 | 2948 | (viper-execute-com 'viper-find-char-forward val com))))) |
d5e52f99 | 2949 | |
2f3eb3b6 | 2950 | (defun viper-goto-char-forward (arg) |
d5e52f99 MK |
2951 | "Go up to char ARG forward on line." |
2952 | (interactive "P") | |
2f3eb3b6 MK |
2953 | (let ((val (viper-p-val arg)) |
2954 | (com (viper-getcom arg)) | |
2955 | (cmd-representation (nth 5 viper-d-com))) | |
d5e52f99 MK |
2956 | (if (> val 0) |
2957 | ;; this means that the function was called interactively | |
2f3eb3b6 MK |
2958 | (setq viper-f-char (read-char) |
2959 | viper-f-forward t | |
2960 | viper-f-offset t) | |
2961 | ;; viper-repeat --- set viper-F-char from command-keys | |
2962 | (setq viper-F-char (if (stringp cmd-representation) | |
2963 | (viper-seq-last-elt cmd-representation) | |
2964 | viper-F-char) | |
2965 | viper-f-char viper-F-char) | |
d5e52f99 | 2966 | (setq val (- val))) |
2f3eb3b6 MK |
2967 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
2968 | (viper-find-char | |
2969 | val (if (> (viper-p-val arg) 0) viper-f-char viper-F-char) t t) | |
d5e52f99 MK |
2970 | (setq val (- val)) |
2971 | (if com | |
2972 | (progn | |
2f3eb3b6 | 2973 | (setq viper-F-char viper-f-char) ; set new viper-F-char |
d5e52f99 | 2974 | (forward-char) |
2f3eb3b6 | 2975 | (viper-execute-com 'viper-goto-char-forward val com))))) |
d5e52f99 | 2976 | |
2f3eb3b6 | 2977 | (defun viper-find-char-backward (arg) |
d5e52f99 MK |
2978 | "Find char ARG on line backward." |
2979 | (interactive "P") | |
2f3eb3b6 MK |
2980 | (let ((val (viper-p-val arg)) |
2981 | (com (viper-getcom arg)) | |
2982 | (cmd-representation (nth 5 viper-d-com))) | |
d5e52f99 MK |
2983 | (if (> val 0) |
2984 | ;; this means that the function was called interactively | |
2f3eb3b6 MK |
2985 | (setq viper-f-char (read-char) |
2986 | viper-f-forward nil | |
2987 | viper-f-offset nil) | |
2988 | ;; viper-repeat --- set viper-F-char from command-keys | |
2989 | (setq viper-F-char (if (stringp cmd-representation) | |
2990 | (viper-seq-last-elt cmd-representation) | |
2991 | viper-F-char) | |
2992 | viper-f-char viper-F-char) | |
d5e52f99 | 2993 | (setq val (- val))) |
2f3eb3b6 MK |
2994 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
2995 | (viper-find-char | |
2996 | val (if (> (viper-p-val arg) 0) viper-f-char viper-F-char) nil nil) | |
d5e52f99 MK |
2997 | (setq val (- val)) |
2998 | (if com | |
2999 | (progn | |
2f3eb3b6 MK |
3000 | (setq viper-F-char viper-f-char) ; set new viper-F-char |
3001 | (viper-execute-com 'viper-find-char-backward val com))))) | |
d5e52f99 | 3002 | |
2f3eb3b6 | 3003 | (defun viper-goto-char-backward (arg) |
d5e52f99 MK |
3004 | "Go up to char ARG backward on line." |
3005 | (interactive "P") | |
2f3eb3b6 MK |
3006 | (let ((val (viper-p-val arg)) |
3007 | (com (viper-getcom arg)) | |
3008 | (cmd-representation (nth 5 viper-d-com))) | |
d5e52f99 MK |
3009 | (if (> val 0) |
3010 | ;; this means that the function was called interactively | |
2f3eb3b6 MK |
3011 | (setq viper-f-char (read-char) |
3012 | viper-f-forward nil | |
3013 | viper-f-offset t) | |
3014 | ;; viper-repeat --- set viper-F-char from command-keys | |
3015 | (setq viper-F-char (if (stringp cmd-representation) | |
3016 | (viper-seq-last-elt cmd-representation) | |
3017 | viper-F-char) | |
3018 | viper-f-char viper-F-char) | |
d5e52f99 | 3019 | (setq val (- val))) |
2f3eb3b6 MK |
3020 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
3021 | (viper-find-char | |
3022 | val (if (> (viper-p-val arg) 0) viper-f-char viper-F-char) nil t) | |
d5e52f99 MK |
3023 | (setq val (- val)) |
3024 | (if com | |
3025 | (progn | |
2f3eb3b6 MK |
3026 | (setq viper-F-char viper-f-char) ; set new viper-F-char |
3027 | (viper-execute-com 'viper-goto-char-backward val com))))) | |
d5e52f99 | 3028 | |
2f3eb3b6 | 3029 | (defun viper-repeat-find (arg) |
d5e52f99 MK |
3030 | "Repeat previous find command." |
3031 | (interactive "P") | |
2f3eb3b6 MK |
3032 | (let ((val (viper-p-val arg)) |
3033 | (com (viper-getcom arg))) | |
3034 | (viper-deactivate-mark) | |
3035 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
3036 | (viper-find-char val viper-f-char viper-f-forward viper-f-offset) | |
d5e52f99 MK |
3037 | (if com |
3038 | (progn | |
2f3eb3b6 MK |
3039 | (if viper-f-forward (forward-char)) |
3040 | (viper-execute-com 'viper-repeat-find val com))))) | |
d5e52f99 | 3041 | |
2f3eb3b6 | 3042 | (defun viper-repeat-find-opposite (arg) |
d5e52f99 MK |
3043 | "Repeat previous find command in the opposite direction." |
3044 | (interactive "P") | |
2f3eb3b6 MK |
3045 | (let ((val (viper-p-val arg)) |
3046 | (com (viper-getcom arg))) | |
3047 | (viper-deactivate-mark) | |
3048 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
3049 | (viper-find-char val viper-f-char (not viper-f-forward) viper-f-offset) | |
d5e52f99 MK |
3050 | (if com |
3051 | (progn | |
2f3eb3b6 MK |
3052 | (if viper-f-forward (forward-char)) |
3053 | (viper-execute-com 'viper-repeat-find-opposite val com))))) | |
d5e52f99 MK |
3054 | |
3055 | \f | |
3056 | ;; window scrolling etc. | |
3057 | ||
2f3eb3b6 | 3058 | (defun viper-window-top (arg) |
d5e52f99 MK |
3059 | "Go to home window line." |
3060 | (interactive "P") | |
2f3eb3b6 MK |
3061 | (let ((val (viper-p-val arg)) |
3062 | (com (viper-getCom arg))) | |
3063 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
d5e52f99 MK |
3064 | (push-mark nil t) |
3065 | (move-to-window-line (1- val)) | |
3066 | ||
3067 | ;; positioning is done twice: before and after command execution | |
3068 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
3069 | (back-to-indentation) | |
3070 | ||
2f3eb3b6 | 3071 | (if com (viper-execute-com 'viper-window-top val com)) |
d5e52f99 MK |
3072 | |
3073 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
3074 | (back-to-indentation) | |
3075 | )) | |
3076 | ||
2f3eb3b6 | 3077 | (defun viper-window-middle (arg) |
d5e52f99 MK |
3078 | "Go to middle window line." |
3079 | (interactive "P") | |
2f3eb3b6 MK |
3080 | (let ((val (viper-p-val arg)) |
3081 | (com (viper-getCom arg)) | |
d5e52f99 | 3082 | lines) |
2f3eb3b6 | 3083 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
d5e52f99 MK |
3084 | (push-mark nil t) |
3085 | (if (not (pos-visible-in-window-p (point-max))) | |
3086 | (move-to-window-line (+ (/ (1- (window-height)) 2) (1- val))) | |
3087 | (setq lines (count-lines (window-start) (point-max))) | |
3088 | (move-to-window-line (+ (/ lines 2) (1- val)))) | |
3089 | ||
3090 | ;; positioning is done twice: before and after command execution | |
3091 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
3092 | (back-to-indentation) | |
3093 | ||
2f3eb3b6 | 3094 | (if com (viper-execute-com 'viper-window-middle val com)) |
d5e52f99 MK |
3095 | |
3096 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
3097 | (back-to-indentation) | |
3098 | )) | |
3099 | ||
2f3eb3b6 | 3100 | (defun viper-window-bottom (arg) |
d5e52f99 MK |
3101 | "Go to last window line." |
3102 | (interactive "P") | |
2f3eb3b6 MK |
3103 | (let ((val (viper-p-val arg)) |
3104 | (com (viper-getCom arg))) | |
3105 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
d5e52f99 MK |
3106 | (push-mark nil t) |
3107 | (move-to-window-line (- val)) | |
3108 | ||
3109 | ;; positioning is done twice: before and after command execution | |
3110 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
3111 | (back-to-indentation) | |
3112 | ||
2f3eb3b6 | 3113 | (if com (viper-execute-com 'viper-window-bottom val com)) |
d5e52f99 MK |
3114 | |
3115 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
3116 | (back-to-indentation) | |
3117 | )) | |
3118 | ||
2f3eb3b6 | 3119 | (defun viper-line-to-top (arg) |
d5e52f99 MK |
3120 | "Put current line on the home line." |
3121 | (interactive "p") | |
3122 | (recenter (1- arg))) | |
3123 | ||
2f3eb3b6 | 3124 | (defun viper-line-to-middle (arg) |
d5e52f99 MK |
3125 | "Put current line on the middle line." |
3126 | (interactive "p") | |
3127 | (recenter (+ (1- arg) (/ (1- (window-height)) 2)))) | |
3128 | ||
2f3eb3b6 | 3129 | (defun viper-line-to-bottom (arg) |
d5e52f99 MK |
3130 | "Put current line on the last line." |
3131 | (interactive "p") | |
3132 | (recenter (- (window-height) (1+ arg)))) | |
3133 | ||
2f3eb3b6 | 3134 | ;; If point is within viper-search-scroll-threshold of window top or bottom, |
d5e52f99 | 3135 | ;; scroll up or down 1/7 of window height, depending on whether we are at the |
2f3eb3b6 MK |
3136 | ;; bottom or at the top of the window. This function is called by viper-search |
3137 | ;; (which is called from viper-search-forward/backward/next). If the value of | |
3138 | ;; viper-search-scroll-threshold is negative - don't scroll. | |
3139 | (defun viper-adjust-window () | |
3140 | (let ((win-height (if viper-emacs-p | |
d5e52f99 MK |
3141 | (1- (window-height)) ; adjust for modeline |
3142 | (window-displayed-height))) | |
3143 | (pt (point)) | |
3144 | at-top-p at-bottom-p | |
3145 | min-scroll direction) | |
3146 | (save-excursion | |
3147 | (move-to-window-line 0) ; top | |
3148 | (setq at-top-p | |
3149 | (<= (count-lines pt (point)) | |
2f3eb3b6 | 3150 | viper-search-scroll-threshold)) |
d5e52f99 MK |
3151 | (move-to-window-line -1) ; bottom |
3152 | (setq at-bottom-p | |
2f3eb3b6 | 3153 | (<= (count-lines pt (point)) viper-search-scroll-threshold)) |
d5e52f99 | 3154 | ) |
2f3eb3b6 | 3155 | (cond (at-top-p (setq min-scroll (1- viper-search-scroll-threshold) |
d5e52f99 | 3156 | direction 1)) |
2f3eb3b6 | 3157 | (at-bottom-p (setq min-scroll (1+ viper-search-scroll-threshold) |
d5e52f99 MK |
3158 | direction -1))) |
3159 | (if min-scroll | |
3160 | (recenter | |
3161 | (* (max min-scroll (/ win-height 7)) direction))) | |
3162 | )) | |
3163 | ||
3164 | \f | |
3165 | ;; paren match | |
3166 | ;; must correct this to only match ( to ) etc. On the other hand | |
3167 | ;; it is good that paren match gets confused, because that way you | |
3168 | ;; catch _all_ imbalances. | |
3169 | ||
2f3eb3b6 | 3170 | (defun viper-paren-match (arg) |
d5e52f99 MK |
3171 | "Go to the matching parenthesis." |
3172 | (interactive "P") | |
2f3eb3b6 MK |
3173 | (viper-leave-region-active) |
3174 | (let ((com (viper-getcom arg)) | |
3175 | (parse-sexp-ignore-comments viper-parse-sexp-ignore-comments) | |
d5e52f99 MK |
3176 | anchor-point) |
3177 | (if (integerp arg) | |
3178 | (if (or (> arg 99) (< arg 1)) | |
3179 | (error "Prefix must be between 1 and 99") | |
3180 | (goto-char | |
3181 | (if (> (point-max) 80000) | |
3182 | (* (/ (point-max) 100) arg) | |
3183 | (/ (* (point-max) arg) 100))) | |
3184 | (back-to-indentation)) | |
3185 | (let (beg-lim end-lim) | |
3186 | (if (and (eolp) (not (bolp))) (forward-char -1)) | |
3187 | (if (not (looking-at "[][(){}]")) | |
3188 | (setq anchor-point (point))) | |
3189 | (save-excursion | |
3190 | (beginning-of-line) | |
3191 | (setq beg-lim (point)) | |
3192 | (end-of-line) | |
3193 | (setq end-lim (point))) | |
3194 | (cond ((re-search-forward "[][(){}]" end-lim t) | |
3195 | (backward-char) ) | |
3196 | ((re-search-backward "[][(){}]" beg-lim t)) | |
3197 | (t | |
3198 | (error "No matching character on line")))) | |
3199 | (cond ((looking-at "[\(\[{]") | |
2f3eb3b6 | 3200 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
d5e52f99 MK |
3201 | (forward-sexp 1) |
3202 | (if com | |
2f3eb3b6 | 3203 | (viper-execute-com 'viper-paren-match nil com) |
d5e52f99 MK |
3204 | (backward-char))) |
3205 | (anchor-point | |
3206 | (if com | |
3207 | (progn | |
2f3eb3b6 | 3208 | (viper-move-marker-locally 'viper-com-point anchor-point) |
d5e52f99 | 3209 | (forward-char 1) |
2f3eb3b6 | 3210 | (viper-execute-com 'viper-paren-match nil com) |
d5e52f99 MK |
3211 | ))) |
3212 | ((looking-at "[])}]") | |
3213 | (forward-char) | |
2f3eb3b6 | 3214 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
d5e52f99 | 3215 | (backward-sexp 1) |
2f3eb3b6 | 3216 | (if com (viper-execute-com 'viper-paren-match nil com))) |
d5e52f99 MK |
3217 | (t (error "")))))) |
3218 | ||
2f3eb3b6 | 3219 | (defun viper-toggle-parse-sexp-ignore-comments () |
d5e52f99 | 3220 | (interactive) |
2f3eb3b6 MK |
3221 | (setq viper-parse-sexp-ignore-comments |
3222 | (not viper-parse-sexp-ignore-comments)) | |
1e70790f MK |
3223 | (princ (format |
3224 | "From now on, `%%' will %signore parentheses inside comment fields" | |
2f3eb3b6 | 3225 | (if viper-parse-sexp-ignore-comments "" "NOT ")))) |
d5e52f99 MK |
3226 | |
3227 | \f | |
3228 | ;; sentence ,paragraph and heading | |
3229 | ||
2f3eb3b6 | 3230 | (defun viper-forward-sentence (arg) |
d5e52f99 MK |
3231 | "Forward sentence." |
3232 | (interactive "P") | |
3233 | (push-mark nil t) | |
2f3eb3b6 MK |
3234 | (let ((val (viper-p-val arg)) |
3235 | (com (viper-getcom arg))) | |
3236 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
d5e52f99 | 3237 | (forward-sentence val) |
2f3eb3b6 | 3238 | (if com (viper-execute-com 'viper-forward-sentence nil com)))) |
d5e52f99 | 3239 | |
2f3eb3b6 | 3240 | (defun viper-backward-sentence (arg) |
d5e52f99 MK |
3241 | "Backward sentence." |
3242 | (interactive "P") | |
3243 | (push-mark nil t) | |
2f3eb3b6 MK |
3244 | (let ((val (viper-p-val arg)) |
3245 | (com (viper-getcom arg))) | |
3246 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
d5e52f99 | 3247 | (backward-sentence val) |
2f3eb3b6 | 3248 | (if com (viper-execute-com 'viper-backward-sentence nil com)))) |
d5e52f99 | 3249 | |
2f3eb3b6 | 3250 | (defun viper-forward-paragraph (arg) |
d5e52f99 MK |
3251 | "Forward paragraph." |
3252 | (interactive "P") | |
3253 | (push-mark nil t) | |
2f3eb3b6 MK |
3254 | (let ((val (viper-p-val arg)) |
3255 | (com (viper-getCom arg))) | |
3256 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
d5e52f99 MK |
3257 | (forward-paragraph val) |
3258 | (if com | |
3259 | (progn | |
3260 | (backward-char 1) | |
2f3eb3b6 | 3261 | (viper-execute-com 'viper-forward-paragraph nil com))))) |
d5e52f99 | 3262 | |
2f3eb3b6 | 3263 | (defun viper-backward-paragraph (arg) |
d5e52f99 MK |
3264 | "Backward paragraph." |
3265 | (interactive "P") | |
3266 | (push-mark nil t) | |
2f3eb3b6 MK |
3267 | (let ((val (viper-p-val arg)) |
3268 | (com (viper-getCom arg))) | |
3269 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
d5e52f99 MK |
3270 | (backward-paragraph val) |
3271 | (if com | |
3272 | (progn | |
3273 | (forward-char 1) | |
2f3eb3b6 | 3274 | (viper-execute-com 'viper-backward-paragraph nil com) |
d5e52f99 MK |
3275 | (backward-char 1))))) |
3276 | ||
3277 | ;; should be mode-specific etc. | |
3278 | ||
2f3eb3b6 | 3279 | (defun viper-prev-heading (arg) |
d5e52f99 | 3280 | (interactive "P") |
2f3eb3b6 MK |
3281 | (let ((val (viper-p-val arg)) |
3282 | (com (viper-getCom arg))) | |
3283 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
3284 | (re-search-backward viper-heading-start nil t val) | |
d5e52f99 | 3285 | (goto-char (match-beginning 0)) |
2f3eb3b6 | 3286 | (if com (viper-execute-com 'viper-prev-heading nil com)))) |
d5e52f99 | 3287 | |
2f3eb3b6 | 3288 | (defun viper-heading-end (arg) |
d5e52f99 | 3289 | (interactive "P") |
2f3eb3b6 MK |
3290 | (let ((val (viper-p-val arg)) |
3291 | (com (viper-getCom arg))) | |
3292 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
3293 | (re-search-forward viper-heading-end nil t val) | |
d5e52f99 | 3294 | (goto-char (match-beginning 0)) |
2f3eb3b6 | 3295 | (if com (viper-execute-com 'viper-heading-end nil com)))) |
d5e52f99 | 3296 | |
2f3eb3b6 | 3297 | (defun viper-next-heading (arg) |
d5e52f99 | 3298 | (interactive "P") |
2f3eb3b6 MK |
3299 | (let ((val (viper-p-val arg)) |
3300 | (com (viper-getCom arg))) | |
3301 | (if com (viper-move-marker-locally 'viper-com-point (point))) | |
d5e52f99 | 3302 | (end-of-line) |
2f3eb3b6 | 3303 | (re-search-forward viper-heading-start nil t val) |
d5e52f99 | 3304 | (goto-char (match-beginning 0)) |
2f3eb3b6 | 3305 | (if com (viper-execute-com 'viper-next-heading nil com)))) |
d5e52f99 MK |
3306 | |
3307 | \f | |
3308 | ;; scrolling | |
3309 | ||
2f3eb3b6 | 3310 | (defun viper-scroll-screen (arg) |
d5e52f99 MK |
3311 | "Scroll to next screen." |
3312 | (interactive "p") | |
3313 | (condition-case nil | |
3314 | (if (> arg 0) | |
3315 | (while (> arg 0) | |
3316 | (scroll-up) | |
3317 | (setq arg (1- arg))) | |
3318 | (while (> 0 arg) | |
3319 | (scroll-down) | |
3320 | (setq arg (1+ arg)))) | |
3321 | (error (beep 1) | |
3322 | (if (> arg 0) | |
3323 | (progn | |
3324 | (message "End of buffer") | |
3325 | (goto-char (point-max))) | |
3326 | (message "Beginning of buffer") | |
3327 | (goto-char (point-min)))) | |
3328 | )) | |
3329 | ||
2f3eb3b6 | 3330 | (defun viper-scroll-screen-back (arg) |
d5e52f99 MK |
3331 | "Scroll to previous screen." |
3332 | (interactive "p") | |
2f3eb3b6 | 3333 | (viper-scroll-screen (- arg))) |
d5e52f99 | 3334 | |
2f3eb3b6 | 3335 | (defun viper-scroll-down (arg) |
d5e52f99 MK |
3336 | "Pull down half screen." |
3337 | (interactive "P") | |
3338 | (condition-case nil | |
3339 | (if (null arg) | |
3340 | (scroll-down (/ (window-height) 2)) | |
3341 | (scroll-down arg)) | |
3342 | (error (beep 1) | |
3343 | (message "Beginning of buffer") | |
3344 | (goto-char (point-min))))) | |
3345 | ||
2f3eb3b6 | 3346 | (defun viper-scroll-down-one (arg) |
d5e52f99 MK |
3347 | "Scroll up one line." |
3348 | (interactive "p") | |
3349 | (scroll-down arg)) | |
3350 | ||
2f3eb3b6 | 3351 | (defun viper-scroll-up (arg) |
d5e52f99 MK |
3352 | "Pull up half screen." |
3353 | (interactive "P") | |
3354 | (condition-case nil | |
3355 | (if (null arg) | |
3356 | (scroll-up (/ (window-height) 2)) | |
3357 | (scroll-up arg)) | |
3358 | (error (beep 1) | |
3359 | (message "End of buffer") | |
3360 | (goto-char (point-max))))) | |
3361 | ||
2f3eb3b6 | 3362 | (defun viper-scroll-up-one (arg) |
d5e52f99 MK |
3363 | "Scroll down one line." |
3364 | (interactive "p") | |
3365 | (scroll-up arg)) | |
3366 | ||
3367 | \f | |
3368 | ;; searching | |
3369 | ||
2f3eb3b6 MK |
3370 | (defun viper-if-string (prompt) |
3371 | (if (memq viper-intermediate-command | |
3372 | '(viper-command-argument viper-digit-argument viper-repeat)) | |
3373 | (setq viper-this-command-keys (this-command-keys))) | |
3374 | (let ((s (viper-read-string-with-history | |
d5e52f99 MK |
3375 | prompt |
3376 | nil ; no initial | |
2f3eb3b6 MK |
3377 | 'viper-search-history |
3378 | (car viper-search-history)))) | |
d5e52f99 | 3379 | (if (not (string= s "")) |
2f3eb3b6 | 3380 | (setq viper-s-string s)))) |
d5e52f99 MK |
3381 | |
3382 | ||
2f3eb3b6 MK |
3383 | (defun viper-toggle-search-style (arg) |
3384 | "Toggle the value of viper-case-fold-search/viper-re-search. | |
d5e52f99 | 3385 | Without prefix argument, will ask which search style to toggle. With prefix |
2f3eb3b6 | 3386 | arg 1,toggles viper-case-fold-search; with arg 2 toggles viper-re-search. |
d5e52f99 | 3387 | |
2f3eb3b6 | 3388 | Although this function is bound to \\[viper-toggle-search-style], the most |
d5e52f99 | 3389 | convenient way to use it is to bind `//' to the macro |
2f3eb3b6 MK |
3390 | `1 M-x viper-toggle-search-style' and `///' to |
3391 | `2 M-x viper-toggle-search-style'. In this way, hitting `//' quickly will | |
d5e52f99 MK |
3392 | toggle case-fold-search and hitting `/' three times witth toggle regexp |
3393 | search. Macros are more convenient in this case because they don't affect | |
3394 | the Emacs binding of `/'." | |
3395 | (interactive "P") | |
3396 | (let (msg) | |
3397 | (cond ((or (eq arg 1) | |
3398 | (and (null arg) | |
3399 | (y-or-n-p (format "Search style: '%s'. Want '%s'? " | |
2f3eb3b6 | 3400 | (if viper-case-fold-search |
d5e52f99 | 3401 | "case-insensitive" "case-sensitive") |
2f3eb3b6 | 3402 | (if viper-case-fold-search |
d5e52f99 MK |
3403 | "case-sensitive" |
3404 | "case-insensitive"))))) | |
2f3eb3b6 MK |
3405 | (setq viper-case-fold-search (null viper-case-fold-search)) |
3406 | (if viper-case-fold-search | |
d5e52f99 MK |
3407 | (setq msg "Search becomes case-insensitive") |
3408 | (setq msg "Search becomes case-sensitive"))) | |
3409 | ((or (eq arg 2) | |
3410 | (and (null arg) | |
3411 | (y-or-n-p (format "Search style: '%s'. Want '%s'? " | |
2f3eb3b6 | 3412 | (if viper-re-search |
d5e52f99 | 3413 | "regexp-search" "vanilla-search") |
2f3eb3b6 | 3414 | (if viper-re-search |
d5e52f99 MK |
3415 | "vanilla-search" |
3416 | "regexp-search"))))) | |
2f3eb3b6 MK |
3417 | (setq viper-re-search (null viper-re-search)) |
3418 | (if viper-re-search | |
d5e52f99 MK |
3419 | (setq msg "Search becomes regexp-style") |
3420 | (setq msg "Search becomes vanilla-style"))) | |
3421 | (t | |
3422 | (setq msg "Search style remains unchanged"))) | |
1e70790f | 3423 | (princ msg t))) |
d5e52f99 | 3424 | |
2f3eb3b6 | 3425 | (defun viper-set-searchstyle-toggling-macros (unset) |
d5e52f99 MK |
3426 | "Set the macros for toggling the search style in Viper's vi-state. |
3427 | The macro that toggles case sensitivity is bound to `//', and the one that | |
3428 | toggles regexp search is bound to `///'. | |
3429 | With a prefix argument, this function unsets the macros. " | |
3430 | (interactive "P") | |
3431 | (or noninteractive | |
3432 | (if (not unset) | |
3433 | (progn | |
3434 | ;; toggle case sensitivity in search | |
2f3eb3b6 | 3435 | (viper-record-kbd-macro |
d5e52f99 | 3436 | "//" 'vi-state |
2f3eb3b6 | 3437 | [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] |
d5e52f99 MK |
3438 | 't) |
3439 | ;; toggle regexp/vanila search | |
2f3eb3b6 | 3440 | (viper-record-kbd-macro |
d5e52f99 | 3441 | "///" 'vi-state |
2f3eb3b6 | 3442 | [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] |
d5e52f99 MK |
3443 | 't) |
3444 | (if (interactive-p) | |
3445 | (message | |
1e70790f | 3446 | "// and /// now toggle case-sensitivity and regexp search"))) |
2f3eb3b6 | 3447 | (viper-unrecord-kbd-macro "//" 'vi-state) |
d5e52f99 | 3448 | (sit-for 2) |
2f3eb3b6 | 3449 | (viper-unrecord-kbd-macro "///" 'vi-state)))) |
d5e52f99 | 3450 | |
1e70790f | 3451 | |
2f3eb3b6 | 3452 | (defun viper-set-parsing-style-toggling-macro (unset) |
1e70790f MK |
3453 | "Set `%%%' to be a macro that toggles whether comment fields should be parsed for matching parentheses. |
3454 | This is used in conjunction with the `%' command. | |
3455 | ||
3456 | With a prefix argument, unsets the macro." | |
3457 | (interactive "P") | |
3458 | (or noninteractive | |
3459 | (if (not unset) | |
3460 | (progn | |
3461 | ;; Make %%% toggle parsing comments for matching parentheses | |
2f3eb3b6 | 3462 | (viper-record-kbd-macro |
1e70790f | 3463 | "%%%" 'vi-state |
2f3eb3b6 | 3464 | [(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] |
1e70790f MK |
3465 | 't) |
3466 | (if (interactive-p) | |
3467 | (message | |
3468 | "%%%%%% now toggles whether comments should be parsed for matching parentheses"))) | |
2f3eb3b6 | 3469 | (viper-unrecord-kbd-macro "%%%" 'vi-state)))) |
1e70790f MK |
3470 | |
3471 | ||
2f3eb3b6 | 3472 | (defun viper-set-emacs-state-searchstyle-macros (unset &optional arg-majormode) |
d5e52f99 MK |
3473 | "Set the macros for toggling the search style in Viper's emacs-state. |
3474 | The macro that toggles case sensitivity is bound to `//', and the one that | |
3475 | toggles regexp search is bound to `///'. | |
3476 | With a prefix argument, this function unsets the macros. | |
3477 | If the optional prefix argument is non-nil and specifies a valid major mode, | |
3478 | this sets the macros only in the macros in that major mode. Otherwise, | |
3479 | the macros are set in the current major mode. | |
3480 | \(When unsetting the macros, the second argument has no effect.\)" | |
3481 | (interactive "P") | |
3482 | (or noninteractive | |
3483 | (if (not unset) | |
3484 | (progn | |
3485 | ;; toggle case sensitivity in search | |
2f3eb3b6 | 3486 | (viper-record-kbd-macro |
d5e52f99 | 3487 | "//" 'emacs-state |
2f3eb3b6 | 3488 | [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] |
d5e52f99 MK |
3489 | (or arg-majormode major-mode)) |
3490 | ;; toggle regexp/vanila search | |
2f3eb3b6 | 3491 | (viper-record-kbd-macro |
d5e52f99 | 3492 | "///" 'emacs-state |
2f3eb3b6 | 3493 | [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] |
d5e52f99 MK |
3494 | (or arg-majormode major-mode)) |
3495 | (if (interactive-p) | |
3496 | (message | |
3497 | "// and /// now toggle case-sensitivity and regexp search."))) | |
2f3eb3b6 | 3498 | (viper-unrecord-kbd-macro "//" 'emacs-state) |
d5e52f99 | 3499 | (sit-for 2) |
2f3eb3b6 | 3500 | (viper-unrecord-kbd-macro "///" 'emacs-state)))) |
d5e52f99 MK |
3501 | |
3502 | ||
2f3eb3b6 | 3503 | (defun viper-search-forward (arg) |
d5e52f99 MK |
3504 | "Search a string forward. |
3505 | ARG is used to find the ARG's occurrence of the string. | |
3506 | Null string will repeat previous search." | |
3507 | (interactive "P") | |
2f3eb3b6 MK |
3508 | (let ((val (viper-P-val arg)) |
3509 | (com (viper-getcom arg)) | |
3510 | (old-str viper-s-string)) | |
3511 | (setq viper-s-forward t) | |
3512 | (viper-if-string "/") | |
d5e52f99 | 3513 | ;; this is not used at present, but may be used later |
2f3eb3b6 MK |
3514 | (if (or (not (equal old-str viper-s-string)) |
3515 | (not (markerp viper-local-search-start-marker)) | |
3516 | (not (marker-buffer viper-local-search-start-marker))) | |
3517 | (setq viper-local-search-start-marker (point-marker))) | |
3518 | (viper-search viper-s-string t val) | |
d5e52f99 MK |
3519 | (if com |
3520 | (progn | |
2f3eb3b6 MK |
3521 | (viper-move-marker-locally 'viper-com-point (mark t)) |
3522 | (viper-execute-com 'viper-search-next val com))))) | |
d5e52f99 | 3523 | |
2f3eb3b6 | 3524 | (defun viper-search-backward (arg) |
d5e52f99 MK |
3525 | "Search a string backward. |
3526 | ARG is used to find the ARG's occurrence of the string. | |
3527 | Null string will repeat previous search." | |
3528 | (interactive "P") | |
2f3eb3b6 MK |
3529 | (let ((val (viper-P-val arg)) |
3530 | (com (viper-getcom arg)) | |
3531 | (old-str viper-s-string)) | |
3532 | (setq viper-s-forward nil) | |
3533 | (viper-if-string "?") | |
d5e52f99 | 3534 | ;; this is not used at present, but may be used later |
2f3eb3b6 MK |
3535 | (if (or (not (equal old-str viper-s-string)) |
3536 | (not (markerp viper-local-search-start-marker)) | |
3537 | (not (marker-buffer viper-local-search-start-marker))) | |
3538 | (setq viper-local-search-start-marker (point-marker))) | |
3539 | (viper-search viper-s-string nil val) | |
d5e52f99 MK |
3540 | (if com |
3541 | (progn | |
2f3eb3b6 MK |
3542 | (viper-move-marker-locally 'viper-com-point (mark t)) |
3543 | (viper-execute-com 'viper-search-next val com))))) | |
d5e52f99 MK |
3544 | |
3545 | ||
3546 | ;; Search for COUNT's occurrence of STRING. | |
3547 | ;; Search is forward if FORWARD is non-nil, otherwise backward. | |
3548 | ;; INIT-POINT is the position where search is to start. | |
3549 | ;; Arguments: | |
3550 | ;; (STRING FORW COUNT &optional NO-OFFSET INIT-POINT LIMIT FAIL-IF-NOT-FOUND) | |
2f3eb3b6 MK |
3551 | (defun viper-search (string forward arg |
3552 | &optional no-offset init-point fail-if-not-found) | |
d5e52f99 | 3553 | (if (not (equal string "")) |
2f3eb3b6 MK |
3554 | (let ((val (viper-p-val arg)) |
3555 | (com (viper-getcom arg)) | |
d5e52f99 | 3556 | (offset (not no-offset)) |
2f3eb3b6 | 3557 | (case-fold-search viper-case-fold-search) |
d5e52f99 | 3558 | (start-point (or init-point (point)))) |
2f3eb3b6 | 3559 | (viper-deactivate-mark) |
d5e52f99 MK |
3560 | (if forward |
3561 | (condition-case nil | |
3562 | (progn | |
2f3eb3b6 MK |
3563 | (if offset (viper-forward-char-carefully)) |
3564 | (if viper-re-search | |
d5e52f99 MK |
3565 | (progn |
3566 | (re-search-forward string nil nil val) | |
3567 | (re-search-backward string)) | |
3568 | (search-forward string nil nil val) | |
3569 | (search-backward string)) | |
3570 | (if (not (equal start-point (point))) | |
3571 | (push-mark start-point t))) | |
3572 | (search-failed | |
2f3eb3b6 | 3573 | (if (and (not fail-if-not-found) viper-search-wrap-around-t) |
d5e52f99 MK |
3574 | (progn |
3575 | (message "Search wrapped around BOTTOM of buffer") | |
3576 | (goto-char (point-min)) | |
2f3eb3b6 | 3577 | (viper-search string forward (cons 1 com) t start-point 'fail) |
d5e52f99 | 3578 | ;; don't wait in macros |
2f3eb3b6 MK |
3579 | (or executing-kbd-macro |
3580 | (memq viper-intermediate-command | |
3581 | '(viper-repeat | |
3582 | viper-digit-argument | |
3583 | viper-command-argument)) | |
3584 | (sit-for 2)) | |
d5e52f99 MK |
3585 | ;; delete the wrap-around message |
3586 | (message "") | |
3587 | ) | |
3588 | (goto-char start-point) | |
3589 | (error "`%s': %s not found" | |
3590 | string | |
2f3eb3b6 | 3591 | (if viper-re-search "Pattern" "String")) |
d5e52f99 MK |
3592 | ))) |
3593 | ;; backward | |
3594 | (condition-case nil | |
3595 | (progn | |
2f3eb3b6 | 3596 | (if viper-re-search |
d5e52f99 MK |
3597 | (re-search-backward string nil nil val) |
3598 | (search-backward string nil nil val)) | |
3599 | (if (not (equal start-point (point))) | |
3600 | (push-mark start-point t))) | |
3601 | (search-failed | |
2f3eb3b6 | 3602 | (if (and (not fail-if-not-found) viper-search-wrap-around-t) |
d5e52f99 MK |
3603 | (progn |
3604 | (message "Search wrapped around TOP of buffer") | |
3605 | (goto-char (point-max)) | |
2f3eb3b6 | 3606 | (viper-search string forward (cons 1 com) t start-point 'fail) |
d5e52f99 | 3607 | ;; don't wait in macros |
2f3eb3b6 MK |
3608 | (or executing-kbd-macro |
3609 | (memq viper-intermediate-command | |
3610 | '(viper-repeat | |
3611 | viper-digit-argument | |
3612 | viper-command-argument)) | |
3613 | (sit-for 2)) | |
d5e52f99 MK |
3614 | ;; delete the wrap-around message |
3615 | (message "") | |
3616 | ) | |
3617 | (goto-char start-point) | |
3618 | (error "`%s': %s not found" | |
3619 | string | |
2f3eb3b6 | 3620 | (if viper-re-search "Pattern" "String")) |
d5e52f99 MK |
3621 | )))) |
3622 | ;; pull up or down if at top/bottom of window | |
2f3eb3b6 | 3623 | (viper-adjust-window) |
d5e52f99 MK |
3624 | ;; highlight the result of search |
3625 | ;; don't wait and don't highlight in macros | |
3626 | (or executing-kbd-macro | |
2f3eb3b6 MK |
3627 | (memq viper-intermediate-command |
3628 | '(viper-repeat viper-digit-argument viper-command-argument)) | |
3629 | (viper-flash-search-pattern)) | |
d5e52f99 MK |
3630 | ))) |
3631 | ||
2f3eb3b6 | 3632 | (defun viper-search-next (arg) |
d5e52f99 MK |
3633 | "Repeat previous search." |
3634 | (interactive "P") | |
2f3eb3b6 MK |
3635 | (let ((val (viper-p-val arg)) |
3636 | (com (viper-getcom arg))) | |
3637 | (if (null viper-s-string) (error viper-NoPrevSearch)) | |
3638 | (viper-search viper-s-string viper-s-forward arg) | |
d5e52f99 MK |
3639 | (if com |
3640 | (progn | |
2f3eb3b6 MK |
3641 | (viper-move-marker-locally 'viper-com-point (mark t)) |
3642 | (viper-execute-com 'viper-search-next val com))))) | |
d5e52f99 | 3643 | |
2f3eb3b6 | 3644 | (defun viper-search-Next (arg) |
d5e52f99 MK |
3645 | "Repeat previous search in the reverse direction." |
3646 | (interactive "P") | |
2f3eb3b6 MK |
3647 | (let ((val (viper-p-val arg)) |
3648 | (com (viper-getcom arg))) | |
3649 | (if (null viper-s-string) (error viper-NoPrevSearch)) | |
3650 | (viper-search viper-s-string (not viper-s-forward) arg) | |
d5e52f99 MK |
3651 | (if com |
3652 | (progn | |
2f3eb3b6 MK |
3653 | (viper-move-marker-locally 'viper-com-point (mark t)) |
3654 | (viper-execute-com 'viper-search-Next val com))))) | |
d5e52f99 MK |
3655 | |
3656 | ||
3657 | ;; Search contents of buffer defined by one of Viper's motion commands. | |
3658 | ;; Repeatable via `n' and `N'. | |
2f3eb3b6 MK |
3659 | (defun viper-buffer-search-enable (&optional c) |
3660 | (cond (c (setq viper-buffer-search-char c)) | |
3661 | ((null viper-buffer-search-char) | |
3662 | (setq viper-buffer-search-char ?g))) | |
3663 | (define-key viper-vi-basic-map | |
3664 | (char-to-string viper-buffer-search-char) 'viper-command-argument) | |
3665 | (aset viper-exec-array viper-buffer-search-char 'viper-exec-buffer-search) | |
3666 | (setq viper-prefix-commands | |
3667 | (cons viper-buffer-search-char viper-prefix-commands))) | |
d5e52f99 MK |
3668 | |
3669 | ;; This is a Viper wraper for isearch-forward. | |
2f3eb3b6 | 3670 | (defun viper-isearch-forward (arg) |
d5e52f99 MK |
3671 | "Do incremental search forward." |
3672 | (interactive "P") | |
3673 | ;; emacs bug workaround | |
3674 | (if (listp arg) (setq arg (car arg))) | |
2f3eb3b6 | 3675 | (viper-exec-form-in-emacs (list 'isearch-forward arg))) |
d5e52f99 MK |
3676 | |
3677 | ;; This is a Viper wraper for isearch-backward." | |
2f3eb3b6 | 3678 | (defun viper-isearch-backward (arg) |
d5e52f99 MK |
3679 | "Do incremental search backward." |
3680 | (interactive "P") | |
3681 | ;; emacs bug workaround | |
3682 | (if (listp arg) (setq arg (car arg))) | |
2f3eb3b6 | 3683 | (viper-exec-form-in-emacs (list 'isearch-backward arg))) |
d5e52f99 MK |
3684 | |
3685 | \f | |
3686 | ;; visiting and killing files, buffers | |
3687 | ||
2f3eb3b6 | 3688 | (defun viper-switch-to-buffer () |
d5e52f99 MK |
3689 | "Switch to buffer in the current window." |
3690 | (interactive) | |
3691 | (let (buffer) | |
3692 | (setq buffer | |
3693 | (read-buffer | |
3694 | (format "Switch to buffer in this window \(%s\): " | |
3695 | (buffer-name (other-buffer (current-buffer)))))) | |
3696 | (switch-to-buffer buffer) | |
3697 | )) | |
3698 | ||
2f3eb3b6 | 3699 | (defun viper-switch-to-buffer-other-window () |
d5e52f99 MK |
3700 | "Switch to buffer in another window." |
3701 | (interactive) | |
3702 | (let (buffer) | |
3703 | (setq buffer | |
3704 | (read-buffer | |
3705 | (format "Switch to buffer in another window \(%s\): " | |
3706 | (buffer-name (other-buffer (current-buffer)))))) | |
3707 | (switch-to-buffer-other-window buffer) | |
3708 | )) | |
3709 | ||
2f3eb3b6 | 3710 | (defun viper-kill-buffer () |
d5e52f99 MK |
3711 | "Kill a buffer." |
3712 | (interactive) | |
3713 | (let (buffer buffer-name) | |
3714 | (setq buffer-name | |
3715 | (read-buffer | |
3716 | (format "Kill buffer \(%s\): " | |
3717 | (buffer-name (current-buffer))))) | |
3718 | (setq buffer | |
3719 | (if (null buffer-name) | |
3720 | (current-buffer) | |
3721 | (get-buffer buffer-name))) | |
3722 | (if (null buffer) (error "`%s': No such buffer" buffer-name)) | |
3723 | (if (or (not (buffer-modified-p buffer)) | |
3724 | (y-or-n-p | |
3725 | (format | |
3726 | "Buffer `%s' is modified, are you sure you want to kill it? " | |
3727 | buffer-name))) | |
3728 | (kill-buffer buffer) | |
3729 | (error "Buffer not killed")))) | |
3730 | ||
d5e52f99 MK |
3731 | |
3732 | \f | |
3733 | ;; yank and pop | |
3734 | ||
2f3eb3b6 | 3735 | (defsubst viper-yank (text) |
d5e52f99 MK |
3736 | "Yank TEXT silently. This works correctly with Emacs's yank-pop command." |
3737 | (insert text) | |
3738 | (setq this-command 'yank)) | |
3739 | ||
2f3eb3b6 | 3740 | (defun viper-put-back (arg) |
d5e52f99 MK |
3741 | "Put back after point/below line." |
3742 | (interactive "P") | |
2f3eb3b6 MK |
3743 | (let ((val (viper-p-val arg)) |
3744 | (text (if viper-use-register | |
3745 | (cond ((viper-valid-register viper-use-register '(digit)) | |
3746 | (current-kill | |
3747 | (- viper-use-register ?1) 'do-not-rotate)) | |
3748 | ((viper-valid-register viper-use-register) | |
3749 | (get-register (downcase viper-use-register))) | |
3750 | (t (error viper-InvalidRegister viper-use-register))) | |
d5e52f99 MK |
3751 | (current-kill 0)))) |
3752 | (if (null text) | |
2f3eb3b6 MK |
3753 | (if viper-use-register |
3754 | (let ((reg viper-use-register)) | |
3755 | (setq viper-use-register nil) | |
3756 | (error viper-EmptyRegister reg)) | |
d5e52f99 | 3757 | (error ""))) |
2f3eb3b6 MK |
3758 | (setq viper-use-register nil) |
3759 | (if (viper-end-with-a-newline-p text) | |
d5e52f99 MK |
3760 | (progn |
3761 | (end-of-line) | |
3762 | (if (eobp) | |
3763 | (insert "\n") | |
3764 | (forward-line 1)) | |
3765 | (beginning-of-line)) | |
2f3eb3b6 MK |
3766 | (if (not (eolp)) (viper-forward-char-carefully))) |
3767 | (set-marker (viper-mark-marker) (point) (current-buffer)) | |
3768 | (viper-set-destructive-command | |
3769 | (list 'viper-put-back val nil viper-use-register nil nil)) | |
3770 | (viper-loop val (viper-yank text))) | |
d5e52f99 MK |
3771 | ;; Vi puts cursor on the last char when the yanked text doesn't contain a |
3772 | ;; newline; it leaves the cursor at the beginning when the text contains | |
3773 | ;; a newline | |
2f3eb3b6 MK |
3774 | (if (viper-same-line (point) (mark)) |
3775 | (or (= (point) (mark)) (viper-backward-char-carefully)) | |
d5e52f99 MK |
3776 | (exchange-point-and-mark) |
3777 | (if (bolp) | |
3778 | (back-to-indentation))) | |
2f3eb3b6 | 3779 | (viper-deactivate-mark)) |
d5e52f99 | 3780 | |
2f3eb3b6 | 3781 | (defun viper-Put-back (arg) |
d5e52f99 MK |
3782 | "Put back at point/above line." |
3783 | (interactive "P") | |
2f3eb3b6 MK |
3784 | (let ((val (viper-p-val arg)) |
3785 | (text (if viper-use-register | |
3786 | (cond ((viper-valid-register viper-use-register '(digit)) | |
3787 | (current-kill | |
3788 | (- viper-use-register ?1) 'do-not-rotate)) | |
3789 | ((viper-valid-register viper-use-register) | |
3790 | (get-register (downcase viper-use-register))) | |
3791 | (t (error viper-InvalidRegister viper-use-register))) | |
d5e52f99 MK |
3792 | (current-kill 0)))) |
3793 | (if (null text) | |
2f3eb3b6 MK |
3794 | (if viper-use-register |
3795 | (let ((reg viper-use-register)) | |
3796 | (setq viper-use-register nil) | |
3797 | (error viper-EmptyRegister reg)) | |
d5e52f99 | 3798 | (error ""))) |
2f3eb3b6 MK |
3799 | (setq viper-use-register nil) |
3800 | (if (viper-end-with-a-newline-p text) (beginning-of-line)) | |
3801 | (viper-set-destructive-command | |
3802 | (list 'viper-Put-back val nil viper-use-register nil nil)) | |
3803 | (set-marker (viper-mark-marker) (point) (current-buffer)) | |
3804 | (viper-loop val (viper-yank text))) | |
d5e52f99 MK |
3805 | ;; Vi puts cursor on the last char when the yanked text doesn't contain a |
3806 | ;; newline; it leaves the cursor at the beginning when the text contains | |
3807 | ;; a newline | |
2f3eb3b6 MK |
3808 | (if (viper-same-line (point) (mark)) |
3809 | (or (= (point) (mark)) (viper-backward-char-carefully)) | |
d5e52f99 MK |
3810 | (exchange-point-and-mark) |
3811 | (if (bolp) | |
3812 | (back-to-indentation))) | |
2f3eb3b6 | 3813 | (viper-deactivate-mark)) |
d5e52f99 MK |
3814 | |
3815 | ||
3816 | ;; Copy region to kill-ring. | |
3817 | ;; If BEG and END do not belong to the same buffer, copy empty region. | |
2f3eb3b6 | 3818 | (defun viper-copy-region-as-kill (beg end) |
d5e52f99 MK |
3819 | (condition-case nil |
3820 | (copy-region-as-kill beg end) | |
3821 | (error (copy-region-as-kill beg beg)))) | |
3822 | ||
3823 | ||
2f3eb3b6 | 3824 | (defun viper-delete-char (arg) |
34317da2 | 3825 | "Delete next character." |
d5e52f99 | 3826 | (interactive "P") |
34317da2 MK |
3827 | (let ((val (viper-p-val arg)) |
3828 | end-del-pos) | |
2f3eb3b6 MK |
3829 | (viper-set-destructive-command |
3830 | (list 'viper-delete-char val nil nil nil nil)) | |
34317da2 MK |
3831 | (if (and viper-ex-style-editing |
3832 | (> val (viper-chars-in-region (point) (viper-line-pos 'end)))) | |
3833 | (setq val (viper-chars-in-region (point) (viper-line-pos 'end)))) | |
2f3eb3b6 | 3834 | (if (and viper-ex-style-motion (eolp)) |
d5e52f99 | 3835 | (if (bolp) (error "") (setq val 0))) ; not bol---simply back 1 ch |
34317da2 MK |
3836 | (save-excursion |
3837 | (viper-forward-char-carefully val) | |
3838 | (setq end-del-pos (point))) | |
2f3eb3b6 | 3839 | (if viper-use-register |
d5e52f99 | 3840 | (progn |
2f3eb3b6 MK |
3841 | (cond ((viper-valid-register viper-use-register '((Letter))) |
3842 | (viper-append-to-register | |
34317da2 | 3843 | (downcase viper-use-register) (point) end-del-pos)) |
2f3eb3b6 | 3844 | ((viper-valid-register viper-use-register) |
d5e52f99 | 3845 | (copy-to-register |
34317da2 | 3846 | viper-use-register (point) end-del-pos nil)) |
2f3eb3b6 MK |
3847 | (t (error viper-InvalidRegister viper-use-register))) |
3848 | (setq viper-use-register nil))) | |
34317da2 MK |
3849 | |
3850 | (delete-char val t) | |
2f3eb3b6 | 3851 | (if viper-ex-style-motion |
34317da2 MK |
3852 | (if (and (eolp) (not (bolp))) (backward-char 1))) |
3853 | )) | |
d5e52f99 | 3854 | |
2f3eb3b6 | 3855 | (defun viper-delete-backward-char (arg) |
d5e52f99 MK |
3856 | "Delete previous character. On reaching beginning of line, stop and beep." |
3857 | (interactive "P") | |
34317da2 MK |
3858 | (let ((val (viper-p-val arg)) |
3859 | end-del-pos) | |
2f3eb3b6 MK |
3860 | (viper-set-destructive-command |
3861 | (list 'viper-delete-backward-char val nil nil nil nil)) | |
34317da2 MK |
3862 | (if (and |
3863 | viper-ex-style-editing | |
3864 | (> val (viper-chars-in-region (viper-line-pos 'start) (point)))) | |
3865 | (setq val (viper-chars-in-region (viper-line-pos 'start) (point)))) | |
3866 | (save-excursion | |
3867 | (viper-backward-char-carefully val) | |
3868 | (setq end-del-pos (point))) | |
2f3eb3b6 | 3869 | (if viper-use-register |
d5e52f99 | 3870 | (progn |
2f3eb3b6 MK |
3871 | (cond ((viper-valid-register viper-use-register '(Letter)) |
3872 | (viper-append-to-register | |
34317da2 | 3873 | (downcase viper-use-register) end-del-pos (point))) |
2f3eb3b6 | 3874 | ((viper-valid-register viper-use-register) |
d5e52f99 | 3875 | (copy-to-register |
34317da2 | 3876 | viper-use-register end-del-pos (point) nil)) |
2f3eb3b6 MK |
3877 | (t (error viper-InvalidRegister viper-use-register))) |
3878 | (setq viper-use-register nil))) | |
34317da2 MK |
3879 | (if (and (bolp) viper-ex-style-editing) |
3880 | (ding)) | |
3881 | (delete-backward-char val t))) | |
d5e52f99 | 3882 | |
2f3eb3b6 | 3883 | (defun viper-del-backward-char-in-insert () |
d5e52f99 MK |
3884 | "Delete 1 char backwards while in insert mode." |
3885 | (interactive) | |
34317da2 | 3886 | (if (and viper-ex-style-editing (bolp)) |
d5e52f99 MK |
3887 | (beep 1) |
3888 | (delete-backward-char 1 t))) | |
3889 | ||
2f3eb3b6 | 3890 | (defun viper-del-backward-char-in-replace () |
d5e52f99 | 3891 | "Delete one character in replace mode. |
2f3eb3b6 | 3892 | If `viper-delete-backwards-in-replace' is t, then DEL key actually deletes |
d5e52f99 | 3893 | charecters. If it is nil, then the cursor just moves backwards, similarly |
34317da2 | 3894 | to Vi. The variable `viper-ex-style-editing', if t, doesn't let the |
d5e52f99 MK |
3895 | cursor move past the beginning of line." |
3896 | (interactive) | |
2f3eb3b6 | 3897 | (cond (viper-delete-backwards-in-replace |
d5e52f99 MK |
3898 | (cond ((not (bolp)) |
3899 | (delete-backward-char 1 t)) | |
34317da2 | 3900 | (viper-ex-style-editing |
d5e52f99 MK |
3901 | (beep 1)) |
3902 | ((bobp) | |
3903 | (beep 1)) | |
3904 | (t | |
3905 | (delete-backward-char 1 t)))) | |
34317da2 | 3906 | (viper-ex-style-editing |
d5e52f99 MK |
3907 | (if (bolp) |
3908 | (beep 1) | |
3909 | (backward-char 1))) | |
3910 | (t | |
3911 | (backward-char 1)))) | |
3912 | ||
3913 | ||
3914 | \f | |
3915 | ;; join lines. | |
3916 | ||
2f3eb3b6 | 3917 | (defun viper-join-lines (arg) |
d5e52f99 MK |
3918 | "Join this line to next, if ARG is nil. Otherwise, join ARG lines." |
3919 | (interactive "*P") | |
2f3eb3b6 MK |
3920 | (let ((val (viper-P-val arg))) |
3921 | (viper-set-destructive-command | |
3922 | (list 'viper-join-lines val nil nil nil nil)) | |
3923 | (viper-loop (if (null val) 1 (1- val)) | |
d5e52f99 MK |
3924 | (end-of-line) |
3925 | (if (not (eobp)) | |
3926 | (progn | |
3927 | (forward-line 1) | |
3928 | (delete-region (point) (1- (point))) | |
1e70790f MK |
3929 | (fixup-whitespace) |
3930 | ;; fixup-whitespace sometimes does not leave space | |
3931 | ;; between objects, so we insert it as in Vi | |
3932 | (or (looking-at " ") | |
3933 | (insert " ") | |
3934 | (backward-char 1)) | |
34317da2 | 3935 | ))))) |
d5e52f99 MK |
3936 | |
3937 | \f | |
3938 | ;; Replace state | |
3939 | ||
2f3eb3b6 | 3940 | (defun viper-change (beg end) |
d5e52f99 MK |
3941 | (if (markerp beg) (setq beg (marker-position beg))) |
3942 | (if (markerp end) (setq end (marker-position end))) | |
3943 | ;; beg is sometimes (mark t), which may be nil | |
3944 | (or beg (setq beg end)) | |
3945 | ||
2f3eb3b6 MK |
3946 | (viper-set-complex-command-for-undo) |
3947 | (if viper-use-register | |
d5e52f99 | 3948 | (progn |
2f3eb3b6 MK |
3949 | (copy-to-register viper-use-register beg end nil) |
3950 | (setq viper-use-register nil))) | |
3951 | (viper-set-replace-overlay beg end) | |
d5e52f99 MK |
3952 | (setq last-command nil) ; separate repl text from prev kills |
3953 | ||
2f3eb3b6 | 3954 | (if (= (viper-replace-start) (point-max)) |
d5e52f99 MK |
3955 | (error "End of buffer")) |
3956 | ||
2f3eb3b6 MK |
3957 | (setq viper-last-replace-region |
3958 | (buffer-substring (viper-replace-start) | |
3959 | (viper-replace-end))) | |
d5e52f99 MK |
3960 | |
3961 | ;; protect against error while inserting "@" and other disasters | |
3962 | ;; (e.g., read-only buff) | |
3963 | (condition-case conds | |
2f3eb3b6 MK |
3964 | (if (or viper-allow-multiline-replace-regions |
3965 | (viper-same-line (viper-replace-start) | |
41497c90 | 3966 | (viper-replace-end))) |
d5e52f99 MK |
3967 | (progn |
3968 | ;; tabs cause problems in replace, so untabify | |
2f3eb3b6 | 3969 | (goto-char (viper-replace-end)) |
d5e52f99 | 3970 | (insert-before-markers "@") ; put placeholder after the TAB |
2f3eb3b6 | 3971 | (untabify (viper-replace-start) (point)) |
d5e52f99 MK |
3972 | ;; del @, don't put on kill ring |
3973 | (delete-backward-char 1) | |
3974 | ||
2f3eb3b6 MK |
3975 | (viper-set-replace-overlay-glyphs |
3976 | viper-replace-region-start-delimiter | |
3977 | viper-replace-region-end-delimiter) | |
d5e52f99 MK |
3978 | ;; this move takes care of the last posn in the overlay, which |
3979 | ;; has to be shifted because of insert. We can't simply insert | |
3980 | ;; "$" before-markers because then overlay-start will shift the | |
3981 | ;; beginning of the overlay in case we are replacing a single | |
3982 | ;; character. This fixes the bug with `s' and `cl' commands. | |
2f3eb3b6 MK |
3983 | (viper-move-replace-overlay (viper-replace-start) (point)) |
3984 | (goto-char (viper-replace-start)) | |
3985 | (viper-change-state-to-replace t)) | |
3986 | (kill-region (viper-replace-start) | |
3987 | (viper-replace-end)) | |
3988 | (viper-hide-replace-overlay) | |
3989 | (viper-change-state-to-insert)) | |
d5e52f99 MK |
3990 | (error ;; make sure that the overlay doesn't stay. |
3991 | ;; go back to the original point | |
2f3eb3b6 MK |
3992 | (goto-char (viper-replace-start)) |
3993 | (viper-hide-replace-overlay) | |
3994 | (viper-message-conditions conds)))) | |
d5e52f99 MK |
3995 | |
3996 | ||
2f3eb3b6 | 3997 | (defun viper-change-subr (beg end) |
d5e52f99 MK |
3998 | ;; beg is sometimes (mark t), which may be nil |
3999 | (or beg (setq beg end)) | |
2f3eb3b6 | 4000 | (if viper-use-register |
d5e52f99 | 4001 | (progn |
2f3eb3b6 MK |
4002 | (copy-to-register viper-use-register beg end nil) |
4003 | (setq viper-use-register nil))) | |
d5e52f99 | 4004 | (kill-region beg end) |
2f3eb3b6 MK |
4005 | (setq this-command 'viper-change) |
4006 | (viper-yank-last-insertion)) | |
d5e52f99 | 4007 | |
2f3eb3b6 | 4008 | (defun viper-toggle-case (arg) |
d5e52f99 MK |
4009 | "Toggle character case." |
4010 | (interactive "P") | |
2f3eb3b6 MK |
4011 | (let ((val (viper-p-val arg)) (c)) |
4012 | (viper-set-destructive-command | |
4013 | (list 'viper-toggle-case val nil nil nil nil)) | |
d5e52f99 MK |
4014 | (while (> val 0) |
4015 | (setq c (following-char)) | |
4016 | (delete-char 1 nil) | |
4017 | (if (eq c (upcase c)) | |
4018 | (insert-char (downcase c) 1) | |
4019 | (insert-char (upcase c) 1)) | |
4020 | (if (eolp) (backward-char 1)) | |
4021 | (setq val (1- val))))) | |
4022 | ||
4023 | \f | |
4024 | ;; query replace | |
4025 | ||
2f3eb3b6 | 4026 | (defun viper-query-replace () |
d5e52f99 MK |
4027 | "Query replace. |
4028 | If a null string is suplied as the string to be replaced, | |
4029 | the query replace mode will toggle between string replace | |
4030 | and regexp replace." | |
4031 | (interactive) | |
4032 | (let (str) | |
2f3eb3b6 MK |
4033 | (setq str (viper-read-string-with-history |
4034 | (if viper-re-query-replace "Query replace regexp: " | |
d5e52f99 MK |
4035 | "Query replace: ") |
4036 | nil ; no initial | |
2f3eb3b6 MK |
4037 | 'viper-replace1-history |
4038 | (car viper-replace1-history) ; default | |
d5e52f99 MK |
4039 | )) |
4040 | (if (string= str "") | |
4041 | (progn | |
2f3eb3b6 | 4042 | (setq viper-re-query-replace (not viper-re-query-replace)) |
d5e52f99 | 4043 | (message "Query replace mode changed to %s" |
2f3eb3b6 | 4044 | (if viper-re-query-replace "regexp replace" |
d5e52f99 | 4045 | "string replace"))) |
2f3eb3b6 | 4046 | (if viper-re-query-replace |
d5e52f99 MK |
4047 | (query-replace-regexp |
4048 | str | |
2f3eb3b6 | 4049 | (viper-read-string-with-history |
d5e52f99 MK |
4050 | (format "Query replace regexp `%s' with: " str) |
4051 | nil ; no initial | |
2f3eb3b6 MK |
4052 | 'viper-replace1-history |
4053 | (car viper-replace1-history) ; default | |
d5e52f99 MK |
4054 | )) |
4055 | (query-replace | |
4056 | str | |
2f3eb3b6 | 4057 | (viper-read-string-with-history |
d5e52f99 MK |
4058 | (format "Query replace `%s' with: " str) |
4059 | nil ; no initial | |
2f3eb3b6 MK |
4060 | 'viper-replace1-history |
4061 | (car viper-replace1-history) ; default | |
d5e52f99 MK |
4062 | )))))) |
4063 | ||
4064 | \f | |
4065 | ;; marking | |
4066 | ||
2f3eb3b6 | 4067 | (defun viper-mark-beginning-of-buffer () |
d5e52f99 MK |
4068 | "Mark beginning of buffer." |
4069 | (interactive) | |
4070 | (push-mark (point)) | |
4071 | (goto-char (point-min)) | |
4072 | (exchange-point-and-mark) | |
4073 | (message "Mark set at the beginning of buffer")) | |
4074 | ||
2f3eb3b6 | 4075 | (defun viper-mark-end-of-buffer () |
d5e52f99 MK |
4076 | "Mark end of buffer." |
4077 | (interactive) | |
4078 | (push-mark (point)) | |
4079 | (goto-char (point-max)) | |
4080 | (exchange-point-and-mark) | |
4081 | (message "Mark set at the end of buffer")) | |
4082 | ||
2f3eb3b6 | 4083 | (defun viper-mark-point () |
d5e52f99 MK |
4084 | "Set mark at point of buffer." |
4085 | (interactive) | |
4086 | (let ((char (read-char))) | |
4087 | (cond ((and (<= ?a char) (<= char ?z)) | |
4088 | (point-to-register (1+ (- char ?a)))) | |
2f3eb3b6 MK |
4089 | ((= char ?<) (viper-mark-beginning-of-buffer)) |
4090 | ((= char ?>) (viper-mark-end-of-buffer)) | |
4091 | ((= char ?.) (viper-set-mark-if-necessary)) | |
4092 | ((= char ?,) (viper-cycle-through-mark-ring)) | |
d5e52f99 MK |
4093 | ((= char ?D) (mark-defun)) |
4094 | (t (error "")) | |
4095 | ))) | |
4096 | ||
4097 | ;; Algorithm: If first invocation of this command save mark on ring, goto | |
4098 | ;; mark, M0, and pop the most recent elt from the mark ring into mark, | |
4099 | ;; making it into the new mark, M1. | |
4100 | ;; Push this mark back and set mark to the original point position, p1. | |
4101 | ;; So, if you hit '' or `` then you can return to p1. | |
4102 | ;; | |
4103 | ;; If repeated command, pop top elt from the ring into mark and | |
4104 | ;; jump there. This forgets the position, p1, and puts M1 back into mark. | |
4105 | ;; Then we save the current pos, which is M0, jump to M1 and pop M2 from | |
4106 | ;; the ring into mark. Push M2 back on the ring and set mark to M0. | |
4107 | ;; etc. | |
2f3eb3b6 | 4108 | (defun viper-cycle-through-mark-ring () |
d5e52f99 MK |
4109 | "Visit previous locations on the mark ring. |
4110 | One can use `` and '' to temporarily jump 1 step back." | |
4111 | (let* ((sv-pt (point))) | |
4112 | ;; if repeated `m,' command, pop the previously saved mark. | |
4113 | ;; Prev saved mark is actually prev saved point. It is used if the | |
4114 | ;; user types `` or '' and is discarded | |
4115 | ;; from the mark ring by the next `m,' command. | |
4116 | ;; In any case, go to the previous or previously saved mark. | |
4117 | ;; Then push the current mark (popped off the ring) and set current | |
4118 | ;; point to be the mark. Current pt as mark is discarded by the next | |
4119 | ;; m, command. | |
2f3eb3b6 | 4120 | (if (eq last-command 'viper-cycle-through-mark-ring) |
d5e52f99 MK |
4121 | () |
4122 | ;; save current mark if the first iteration | |
2f3eb3b6 | 4123 | (setq mark-ring (delete (viper-mark-marker) mark-ring)) |
d5e52f99 MK |
4124 | (if (mark t) |
4125 | (push-mark (mark t) t)) ) | |
4126 | (pop-mark) | |
4127 | (set-mark-command 1) | |
4128 | ;; don't duplicate mark on the ring | |
2f3eb3b6 | 4129 | (setq mark-ring (delete (viper-mark-marker) mark-ring)) |
d5e52f99 | 4130 | (push-mark sv-pt t) |
2f3eb3b6 MK |
4131 | (viper-deactivate-mark) |
4132 | (setq this-command 'viper-cycle-through-mark-ring) | |
d5e52f99 MK |
4133 | )) |
4134 | ||
4135 | ||
2f3eb3b6 | 4136 | (defun viper-goto-mark (arg) |
d5e52f99 MK |
4137 | "Go to mark." |
4138 | (interactive "P") | |
4139 | (let ((char (read-char)) | |
2f3eb3b6 MK |
4140 | (com (viper-getcom arg))) |
4141 | (viper-goto-mark-subr char com nil))) | |
d5e52f99 | 4142 | |
2f3eb3b6 | 4143 | (defun viper-goto-mark-and-skip-white (arg) |
d5e52f99 MK |
4144 | "Go to mark and skip to first non-white character on line." |
4145 | (interactive "P") | |
4146 | (let ((char (read-char)) | |
2f3eb3b6 MK |
4147 | (com (viper-getCom arg))) |
4148 | (viper-goto-mark-subr char com t))) | |
d5e52f99 | 4149 | |
2f3eb3b6 | 4150 | (defun viper-goto-mark-subr (char com skip-white) |
d5e52f99 MK |
4151 | (if (eobp) |
4152 | (if (bobp) | |
4153 | (error "Empty buffer") | |
4154 | (backward-char 1))) | |
2f3eb3b6 | 4155 | (cond ((viper-valid-register char '(letter)) |
d5e52f99 MK |
4156 | (let* ((buff (current-buffer)) |
4157 | (reg (1+ (- char ?a))) | |
4158 | (text-marker (get-register reg))) | |
2f3eb3b6 MK |
4159 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
4160 | (if (not (viper-valid-marker text-marker)) | |
4161 | (error viper-EmptyTextmarker char)) | |
4162 | (if (and (viper-same-line (point) viper-last-jump) | |
4163 | (= (point) viper-last-jump-ignore)) | |
4164 | (push-mark viper-last-jump t) | |
d5e52f99 | 4165 | (push-mark nil t)) ; no msg |
2f3eb3b6 MK |
4166 | (viper-register-to-point reg) |
4167 | (setq viper-last-jump (point-marker)) | |
d5e52f99 MK |
4168 | (cond (skip-white |
4169 | (back-to-indentation) | |
2f3eb3b6 | 4170 | (setq viper-last-jump-ignore (point)))) |
d5e52f99 MK |
4171 | (if com |
4172 | (if (equal buff (current-buffer)) | |
2f3eb3b6 MK |
4173 | (viper-execute-com (if skip-white |
4174 | 'viper-goto-mark-and-skip-white | |
4175 | 'viper-goto-mark) | |
d5e52f99 MK |
4176 | nil com) |
4177 | (switch-to-buffer buff) | |
2f3eb3b6 MK |
4178 | (goto-char viper-com-point) |
4179 | (viper-change-state-to-vi) | |
d5e52f99 MK |
4180 | (error ""))))) |
4181 | ((and (not skip-white) (= char ?`)) | |
2f3eb3b6 MK |
4182 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
4183 | (if (and (viper-same-line (point) viper-last-jump) | |
4184 | (= (point) viper-last-jump-ignore)) | |
4185 | (goto-char viper-last-jump)) | |
d5e52f99 MK |
4186 | (if (null (mark t)) (error "Mark is not set in this buffer")) |
4187 | (if (= (point) (mark t)) (pop-mark)) | |
4188 | (exchange-point-and-mark) | |
2f3eb3b6 MK |
4189 | (setq viper-last-jump (point-marker) |
4190 | viper-last-jump-ignore 0) | |
4191 | (if com (viper-execute-com 'viper-goto-mark nil com))) | |
d5e52f99 | 4192 | ((and skip-white (= char ?')) |
2f3eb3b6 MK |
4193 | (if com (viper-move-marker-locally 'viper-com-point (point))) |
4194 | (if (and (viper-same-line (point) viper-last-jump) | |
4195 | (= (point) viper-last-jump-ignore)) | |
4196 | (goto-char viper-last-jump)) | |
d5e52f99 MK |
4197 | (if (= (point) (mark t)) (pop-mark)) |
4198 | (exchange-point-and-mark) | |
2f3eb3b6 | 4199 | (setq viper-last-jump (point)) |
d5e52f99 | 4200 | (back-to-indentation) |
2f3eb3b6 MK |
4201 | (setq viper-last-jump-ignore (point)) |
4202 | (if com (viper-execute-com 'viper-goto-mark-and-skip-white nil com))) | |
4203 | (t (error viper-InvalidTextmarker char)))) | |
d5e52f99 | 4204 | |
2f3eb3b6 | 4205 | (defun viper-insert-tab () |
d5e52f99 MK |
4206 | (interactive) |
4207 | (insert-tab)) | |
4208 | ||
2f3eb3b6 | 4209 | (defun viper-exchange-point-and-mark () |
d5e52f99 MK |
4210 | (interactive) |
4211 | (exchange-point-and-mark) | |
4212 | (back-to-indentation)) | |
4213 | ||
4214 | ;; Input Mode Indentation | |
4215 | ||
4216 | ;; Returns t, if the string before point matches the regexp STR. | |
2f3eb3b6 | 4217 | (defsubst viper-looking-back (str) |
d5e52f99 MK |
4218 | (and (save-excursion (re-search-backward str nil t)) |
4219 | (= (point) (match-end 0)))) | |
4220 | ||
4221 | ||
2f3eb3b6 | 4222 | (defun viper-forward-indent () |
d5e52f99 MK |
4223 | "Indent forward -- `C-t' in Vi." |
4224 | (interactive) | |
2f3eb3b6 MK |
4225 | (setq viper-cted t) |
4226 | (indent-to (+ (current-column) viper-shift-width))) | |
d5e52f99 | 4227 | |
2f3eb3b6 | 4228 | (defun viper-backward-indent () |
d5e52f99 MK |
4229 | "Backtab, C-d in VI" |
4230 | (interactive) | |
2f3eb3b6 | 4231 | (if viper-cted |
d5e52f99 | 4232 | (let ((p (point)) (c (current-column)) bol (indent t)) |
2f3eb3b6 | 4233 | (if (viper-looking-back "[0^]") |
d5e52f99 MK |
4234 | (progn |
4235 | (if (eq ?^ (preceding-char)) | |
2f3eb3b6 | 4236 | (setq viper-preserve-indent t)) |
d5e52f99 MK |
4237 | (delete-backward-char 1) |
4238 | (setq p (point)) | |
4239 | (setq indent nil))) | |
4240 | (save-excursion | |
4241 | (beginning-of-line) | |
4242 | (setq bol (point))) | |
4243 | (if (re-search-backward "[^ \t]" bol 1) (forward-char)) | |
4244 | (delete-region (point) p) | |
4245 | (if indent | |
2f3eb3b6 MK |
4246 | (indent-to (- c viper-shift-width))) |
4247 | (if (or (bolp) (viper-looking-back "[^ \t]")) | |
4248 | (setq viper-cted nil))))) | |
d5e52f99 | 4249 | |
2f3eb3b6 | 4250 | (defun viper-autoindent () |
d5e52f99 MK |
4251 | "Auto Indentation, Vi-style." |
4252 | (interactive) | |
4253 | (let ((col (current-indentation))) | |
4254 | (if abbrev-mode (expand-abbrev)) | |
2f3eb3b6 MK |
4255 | (if viper-preserve-indent |
4256 | (setq viper-preserve-indent nil) | |
4257 | (setq viper-current-indent col)) | |
d5e52f99 MK |
4258 | ;; don't leave whitespace lines around |
4259 | (if (memq last-command | |
2f3eb3b6 MK |
4260 | '(viper-autoindent |
4261 | viper-open-line viper-Open-line | |
4262 | viper-replace-state-exit-cmd)) | |
d5e52f99 MK |
4263 | (indent-to-left-margin)) |
4264 | ;; use \n instead of newline, or else <Return> will move the insert point | |
4265 | ;;(newline 1) | |
4266 | (insert "\n") | |
2f3eb3b6 | 4267 | (if viper-auto-indent |
d5e52f99 | 4268 | (progn |
2f3eb3b6 MK |
4269 | (setq viper-cted t) |
4270 | (if (and viper-electric-mode | |
4271 | (not | |
4272 | (memq major-mode '(fundamental-mode | |
4273 | text-mode | |
4274 | paragraph-indent-text-mode )))) | |
d5e52f99 | 4275 | (indent-according-to-mode) |
2f3eb3b6 | 4276 | (indent-to viper-current-indent)) |
d5e52f99 MK |
4277 | )) |
4278 | )) | |
4279 | ||
4280 | ||
4281 | ;; Viewing registers | |
4282 | ||
2f3eb3b6 | 4283 | (defun viper-ket-function (arg) |
d5e52f99 MK |
4284 | "Function called by \], the ket. View registers and call \]\]." |
4285 | (interactive "P") | |
4286 | (let ((reg (read-char))) | |
2f3eb3b6 | 4287 | (cond ((viper-valid-register reg '(letter Letter)) |
d5e52f99 | 4288 | (view-register (downcase reg))) |
2f3eb3b6 | 4289 | ((viper-valid-register reg '(digit)) |
d5e52f99 MK |
4290 | (let ((text (current-kill (- reg ?1) 'do-not-rotate))) |
4291 | (save-excursion | |
4292 | (set-buffer (get-buffer-create "*Output*")) | |
4293 | (delete-region (point-min) (point-max)) | |
4294 | (insert (format "Register %c contains the string:\n" reg)) | |
4295 | (insert text) | |
4296 | (goto-char (point-min))) | |
4297 | (display-buffer "*Output*"))) | |
4298 | ((= ?\] reg) | |
2f3eb3b6 | 4299 | (viper-next-heading arg)) |
d5e52f99 | 4300 | (t (error |
2f3eb3b6 | 4301 | viper-InvalidRegister reg))))) |
d5e52f99 | 4302 | |
2f3eb3b6 | 4303 | (defun viper-brac-function (arg) |
d5e52f99 MK |
4304 | "Function called by \[, the brac. View textmarkers and call \[\[" |
4305 | (interactive "P") | |
4306 | (let ((reg (read-char))) | |
4307 | (cond ((= ?\[ reg) | |
2f3eb3b6 | 4308 | (viper-prev-heading arg)) |
d5e52f99 | 4309 | ((= ?\] reg) |
2f3eb3b6 MK |
4310 | (viper-heading-end arg)) |
4311 | ((viper-valid-register reg '(letter)) | |
d5e52f99 MK |
4312 | (let* ((val (get-register (1+ (- reg ?a)))) |
4313 | (buf (if (not val) | |
2f3eb3b6 | 4314 | (error viper-EmptyTextmarker reg) |
d5e52f99 MK |
4315 | (marker-buffer val))) |
4316 | (pos (marker-position val)) | |
4317 | line-no text (s pos) (e pos)) | |
4318 | (save-excursion | |
4319 | (set-buffer (get-buffer-create "*Output*")) | |
4320 | (delete-region (point-min) (point-max)) | |
4321 | (if (and buf pos) | |
4322 | (progn | |
4323 | (save-excursion | |
4324 | (set-buffer buf) | |
4325 | (setq line-no (1+ (count-lines (point-min) val))) | |
4326 | (goto-char pos) | |
4327 | (beginning-of-line) | |
4328 | (if (re-search-backward "[^ \t]" nil t) | |
4329 | (progn | |
4330 | (beginning-of-line) | |
4331 | (setq s (point)))) | |
4332 | (goto-char pos) | |
4333 | (forward-line 1) | |
4334 | (if (re-search-forward "[^ \t]" nil t) | |
4335 | (progn | |
4336 | (end-of-line) | |
4337 | (setq e (point)))) | |
4338 | (setq text (buffer-substring s e)) | |
4339 | (setq text (format "%s<%c>%s" | |
4340 | (substring text 0 (- pos s)) | |
4341 | reg (substring text (- pos s))))) | |
4342 | (insert | |
4343 | (format | |
4344 | "Textmarker `%c' is in buffer `%s' at line %d.\n" | |
4345 | reg (buffer-name buf) line-no)) | |
4346 | (insert (format "Here is some text around %c:\n\n %s" | |
4347 | reg text))) | |
2f3eb3b6 | 4348 | (insert (format viper-EmptyTextmarker reg))) |
d5e52f99 MK |
4349 | (goto-char (point-min))) |
4350 | (display-buffer "*Output*"))) | |
2f3eb3b6 | 4351 | (t (error viper-InvalidTextmarker reg))))) |
d5e52f99 MK |
4352 | |
4353 | ||
4354 | \f | |
4355 | ;; commands in insertion mode | |
4356 | ||
2f3eb3b6 | 4357 | (defun viper-delete-backward-word (arg) |
d5e52f99 MK |
4358 | "Delete previous word." |
4359 | (interactive "p") | |
4360 | (save-excursion | |
4361 | (push-mark nil t) | |
4362 | (backward-word arg) | |
4363 | (delete-region (point) (mark t)) | |
4364 | (pop-mark))) | |
4365 | ||
4366 | ||
1e70790f | 4367 | (defun viper-set-expert-level (&optional dont-change-unless) |
d5e52f99 MK |
4368 | "Sets the expert level for a Viper user. |
4369 | Can be called interactively to change (temporarily or permanently) the | |
4370 | current expert level. | |
4371 | ||
e36a387d | 4372 | The optional argument DONT-CHANGE-UNLESS, if not nil, says that |
d5e52f99 MK |
4373 | the level should not be changed, unless its current value is |
4374 | meaningless (i.e., not one of 1,2,3,4,5). | |
4375 | ||
4376 | User level determines the setting of Viper variables that are most | |
4377 | sensitive for VI-style look-and-feel." | |
4378 | ||
4379 | (interactive) | |
4380 | ||
1e70790f | 4381 | (if (not (natnump viper-expert-level)) (setq viper-expert-level 0)) |
d5e52f99 MK |
4382 | |
4383 | (save-window-excursion | |
4384 | (delete-other-windows) | |
1e70790f | 4385 | ;; if 0 < viper-expert-level < viper-max-expert-level |
d5e52f99 | 4386 | ;; & dont-change-unless = t -- use it; else ask |
2f3eb3b6 | 4387 | (viper-ask-level dont-change-unless)) |
d5e52f99 | 4388 | |
2f3eb3b6 MK |
4389 | (setq viper-always t |
4390 | viper-ex-style-motion t | |
34317da2 | 4391 | viper-ex-style-editing t |
2f3eb3b6 | 4392 | viper-want-ctl-h-help nil) |
d5e52f99 | 4393 | |
1e70790f | 4394 | (cond ((eq viper-expert-level 1) ; novice or beginner |
d5e52f99 | 4395 | (global-set-key ; in emacs-state |
2f3eb3b6 MK |
4396 | viper-toggle-key |
4397 | (if (viper-window-display-p) 'viper-iconify 'suspend-emacs)) | |
4398 | (setq viper-no-multiple-ESC t | |
4399 | viper-re-search t | |
4400 | viper-vi-style-in-minibuffer t | |
4401 | viper-search-wrap-around-t t | |
4402 | viper-electric-mode nil | |
4403 | viper-want-emacs-keys-in-vi nil | |
4404 | viper-want-emacs-keys-in-insert nil)) | |
d5e52f99 | 4405 | |
1e70790f | 4406 | ((and (> viper-expert-level 1) (< viper-expert-level 5)) |
d5e52f99 | 4407 | ;; intermediate to guru |
2f3eb3b6 MK |
4408 | (setq viper-no-multiple-ESC (if (viper-window-display-p) |
4409 | t 'twice) | |
4410 | viper-electric-mode t | |
4411 | viper-want-emacs-keys-in-vi t | |
4412 | viper-want-emacs-keys-in-insert (> viper-expert-level 2)) | |
4413 | ||
4414 | (if (eq viper-expert-level 4) ; respect user's ex-style motion | |
4415 | ; and viper-no-multiple-ESC | |
d5e52f99 | 4416 | (progn |
1e70790f | 4417 | (setq-default |
34317da2 MK |
4418 | viper-ex-style-editing |
4419 | (viper-standard-value 'viper-ex-style-editing) | |
2f3eb3b6 MK |
4420 | viper-ex-style-motion |
4421 | (viper-standard-value 'viper-ex-style-motion)) | |
4422 | (setq viper-ex-style-motion | |
4423 | (viper-standard-value 'viper-ex-style-motion) | |
34317da2 MK |
4424 | viper-ex-style-editing |
4425 | (viper-standard-value 'viper-ex-style-editing) | |
2f3eb3b6 MK |
4426 | viper-re-search |
4427 | (viper-standard-value 'viper-re-search) | |
4428 | viper-no-multiple-ESC | |
4429 | (viper-standard-value 'viper-no-multiple-ESC))))) | |
1e70790f | 4430 | |
d5e52f99 MK |
4431 | ;; A wizard!! |
4432 | ;; Ideally, if 5 is selected, a buffer should pop up to let the | |
4433 | ;; user toggle the values of variables. | |
34317da2 MK |
4434 | (t (setq-default viper-ex-style-editing |
4435 | (viper-standard-value 'viper-ex-style-editing) | |
2f3eb3b6 MK |
4436 | viper-ex-style-motion |
4437 | (viper-standard-value 'viper-ex-style-motion)) | |
4438 | (setq viper-want-ctl-h-help | |
4439 | (viper-standard-value 'viper-want-ctl-h-help) | |
e36a387d | 4440 | viper-always |
1e70790f | 4441 | (viper-standard-value 'viper-always) |
2f3eb3b6 MK |
4442 | viper-no-multiple-ESC |
4443 | (viper-standard-value 'viper-no-multiple-ESC) | |
4444 | viper-ex-style-motion | |
4445 | (viper-standard-value 'viper-ex-style-motion) | |
34317da2 MK |
4446 | viper-ex-style-editing |
4447 | (viper-standard-value 'viper-ex-style-editing) | |
2f3eb3b6 MK |
4448 | viper-re-search |
4449 | (viper-standard-value 'viper-re-search) | |
4450 | viper-electric-mode | |
4451 | (viper-standard-value 'viper-electric-mode) | |
4452 | viper-want-emacs-keys-in-vi | |
4453 | (viper-standard-value 'viper-want-emacs-keys-in-vi) | |
4454 | viper-want-emacs-keys-in-insert | |
4455 | (viper-standard-value 'viper-want-emacs-keys-in-insert)))) | |
1e70790f | 4456 | |
2f3eb3b6 | 4457 | (viper-set-mode-vars-for viper-current-state) |
e36a387d | 4458 | (if (or viper-always |
1e70790f | 4459 | (and (> viper-expert-level 0) (> 5 viper-expert-level))) |
2f3eb3b6 | 4460 | (viper-set-hooks))) |
d5e52f99 MK |
4461 | |
4462 | ;; Ask user expert level. | |
2f3eb3b6 MK |
4463 | (defun viper-ask-level (dont-change-unless) |
4464 | (let ((ask-buffer " *viper-ask-level*") | |
d5e52f99 MK |
4465 | level-changed repeated) |
4466 | (save-window-excursion | |
4467 | (switch-to-buffer ask-buffer) | |
4468 | ||
1e70790f MK |
4469 | (while (or (> viper-expert-level viper-max-expert-level) |
4470 | (< viper-expert-level 1) | |
d5e52f99 MK |
4471 | (null dont-change-unless)) |
4472 | (erase-buffer) | |
4473 | (if repeated | |
4474 | (progn | |
4475 | (message "Invalid user level") | |
4476 | (beep 1)) | |
4477 | (setq repeated t)) | |
4478 | (setq dont-change-unless t | |
4479 | level-changed t) | |
4480 | (insert " | |
4481 | Please specify your level of familiarity with the venomous VI PERil | |
4482 | (and the VI Plan for Emacs Rescue). | |
1e70790f | 4483 | You can change it at any time by typing `M-x viper-set-expert-level RET' |
d5e52f99 MK |
4484 | |
4485 | 1 -- BEGINNER: Almost all Emacs features are suppressed. | |
2f3eb3b6 MK |
4486 | Feels almost like straight Vi. File name completion and |
4487 | command history in the minibuffer are thrown in as a bonus. | |
4488 | To use Emacs productively, you must reach level 3 or higher. | |
d5e52f99 | 4489 | 2 -- MASTER: C-c now has its standard Emacs meaning in Vi command state, |
2f3eb3b6 MK |
4490 | so most Emacs commands can be used when Viper is in Vi state. |
4491 | Good progress---you are well on the way to level 3! | |
d5e52f99 | 4492 | 3 -- GRAND MASTER: Like 3, but most Emacs commands are available also |
2f3eb3b6 MK |
4493 | in Viper's insert state. |
4494 | 4 -- GURU: Like 3, but user settings are respected for viper-no-multiple-ESC, | |
34317da2 | 4495 | viper-ex-style-motion, viper-ex-style-editing, and |
2f3eb3b6 | 4496 | viper-re-search variables. Adjust these settings to your taste. |
e36a387d | 4497 | 5 -- WIZARD: Like 4, but user settings are also respected for viper-always, |
2f3eb3b6 MK |
4498 | viper-electric-mode, viper-want-ctl-h-help, viper-want-emacs-keys-in-vi, |
4499 | and viper-want-emacs-keys-in-insert. Adjust these to your taste. | |
d5e52f99 MK |
4500 | |
4501 | Please, specify your level now: ") | |
4502 | ||
2f3eb3b6 | 4503 | (setq viper-expert-level (- (viper-read-char-exclusive) ?0)) |
d5e52f99 MK |
4504 | ) ; end while |
4505 | ||
4506 | ;; tell the user if level was changed | |
4507 | (and level-changed | |
4508 | (progn | |
4509 | (insert | |
4510 | (format "\n\n\n\n\n\t\tYou have selected user level %d" | |
1e70790f | 4511 | viper-expert-level)) |
d5e52f99 | 4512 | (if (y-or-n-p "Do you wish to make this change permanent? ") |
1e70790f | 4513 | ;; save the setting for viper-expert-level |
2f3eb3b6 | 4514 | (viper-save-setting |
1e70790f MK |
4515 | 'viper-expert-level |
4516 | (format "Saving user level %d ..." viper-expert-level) | |
2f3eb3b6 | 4517 | viper-custom-file-name)) |
d5e52f99 MK |
4518 | )) |
4519 | (bury-buffer) ; remove ask-buffer from screen | |
4520 | (message "") | |
4521 | ))) | |
4522 | ||
4523 | ||
2f3eb3b6 | 4524 | (defun viper-nil () |
d5e52f99 MK |
4525 | (interactive) |
4526 | (beep 1)) | |
4527 | ||
4528 | ||
4529 | ;; if ENFORCE-BUFFER is not nil, error if CHAR is a marker in another buffer | |
2f3eb3b6 | 4530 | (defun viper-register-to-point (char &optional enforce-buffer) |
d5e52f99 MK |
4531 | "Like jump-to-register, but switches to another buffer in another window." |
4532 | (interactive "cViper register to point: ") | |
4533 | (let ((val (get-register char))) | |
4534 | (cond | |
4535 | ((and (fboundp 'frame-configuration-p) | |
4536 | (frame-configuration-p val)) | |
4537 | (set-frame-configuration val)) | |
4538 | ((window-configuration-p val) | |
4539 | (set-window-configuration val)) | |
2f3eb3b6 | 4540 | ((viper-valid-marker val) |
d5e52f99 MK |
4541 | (if (and enforce-buffer |
4542 | (not (equal (current-buffer) (marker-buffer val)))) | |
2f3eb3b6 | 4543 | (error (concat viper-EmptyTextmarker " in this buffer") |
d5e52f99 MK |
4544 | (1- (+ char ?a)))) |
4545 | (pop-to-buffer (marker-buffer val)) | |
4546 | (goto-char val)) | |
4547 | ((and (consp val) (eq (car val) 'file)) | |
4548 | (find-file (cdr val))) | |
4549 | (t | |
2f3eb3b6 | 4550 | (error viper-EmptyTextmarker (1- (+ char ?a))))))) |
d5e52f99 MK |
4551 | |
4552 | ||
2f3eb3b6 | 4553 | (defun viper-save-kill-buffer () |
d5e52f99 MK |
4554 | "Save then kill current buffer. " |
4555 | (interactive) | |
1e70790f | 4556 | (if (< viper-expert-level 2) |
d5e52f99 MK |
4557 | (save-buffers-kill-emacs) |
4558 | (save-buffer) | |
4559 | (kill-buffer (current-buffer)))) | |
4560 | ||
4561 | ||
4562 | \f | |
4563 | ;;; Bug Report | |
4564 | ||
2f3eb3b6 | 4565 | (defun viper-submit-report () |
d5e52f99 MK |
4566 | "Submit bug report on Viper." |
4567 | (interactive) | |
4568 | (let ((reporter-prompt-for-summary-p t) | |
2f3eb3b6 | 4569 | (viper-device-type (viper-device-type)) |
d5e52f99 MK |
4570 | color-display-p frame-parameters |
4571 | minibuffer-emacs-face minibuffer-vi-face minibuffer-insert-face | |
4572 | varlist salutation window-config) | |
4573 | ||
4574 | ;; If mode info is needed, add variable to `let' and then set it below, | |
4575 | ;; like we did with color-display-p. | |
2f3eb3b6 MK |
4576 | (setq color-display-p (if (viper-window-display-p) |
4577 | (viper-color-display-p) | |
d5e52f99 | 4578 | 'non-x) |
2f3eb3b6 MK |
4579 | minibuffer-vi-face (if (viper-has-face-support-p) |
4580 | (viper-get-face viper-minibuffer-vi-face) | |
d5e52f99 | 4581 | 'non-x) |
2f3eb3b6 MK |
4582 | minibuffer-insert-face (if (viper-has-face-support-p) |
4583 | (viper-get-face | |
4584 | viper-minibuffer-insert-face) | |
d5e52f99 | 4585 | 'non-x) |
2f3eb3b6 MK |
4586 | minibuffer-emacs-face (if (viper-has-face-support-p) |
4587 | (viper-get-face | |
4588 | viper-minibuffer-emacs-face) | |
d5e52f99 MK |
4589 | 'non-x) |
4590 | frame-parameters (if (fboundp 'frame-parameters) | |
4591 | (frame-parameters (selected-frame)))) | |
4592 | ||
2f3eb3b6 MK |
4593 | (setq varlist (list 'viper-vi-minibuffer-minor-mode |
4594 | 'viper-insert-minibuffer-minor-mode | |
4595 | 'viper-vi-intercept-minor-mode | |
4596 | 'viper-vi-local-user-minor-mode | |
4597 | 'viper-vi-kbd-minor-mode | |
4598 | 'viper-vi-global-user-minor-mode | |
4599 | 'viper-vi-state-modifier-minor-mode | |
4600 | 'viper-vi-diehard-minor-mode | |
4601 | 'viper-vi-basic-minor-mode | |
4602 | 'viper-replace-minor-mode | |
4603 | 'viper-insert-intercept-minor-mode | |
4604 | 'viper-insert-local-user-minor-mode | |
4605 | 'viper-insert-kbd-minor-mode | |
4606 | 'viper-insert-global-user-minor-mode | |
4607 | 'viper-insert-state-modifier-minor-mode | |
4608 | 'viper-insert-diehard-minor-mode | |
4609 | 'viper-insert-basic-minor-mode | |
4610 | 'viper-emacs-intercept-minor-mode | |
4611 | 'viper-emacs-local-user-minor-mode | |
4612 | 'viper-emacs-kbd-minor-mode | |
4613 | 'viper-emacs-global-user-minor-mode | |
4614 | 'viper-emacs-state-modifier-minor-mode | |
4615 | 'viper-automatic-iso-accents | |
34317da2 | 4616 | 'viper-special-input-method |
2f3eb3b6 MK |
4617 | 'viper-want-emacs-keys-in-insert |
4618 | 'viper-want-emacs-keys-in-vi | |
4619 | 'viper-keep-point-on-undo | |
4620 | 'viper-no-multiple-ESC | |
4621 | 'viper-electric-mode | |
4622 | 'viper-ESC-key | |
4623 | 'viper-want-ctl-h-help | |
34317da2 | 4624 | 'viper-ex-style-editing |
2f3eb3b6 MK |
4625 | 'viper-delete-backwards-in-replace |
4626 | 'viper-vi-style-in-minibuffer | |
4627 | 'viper-vi-state-hook | |
4628 | 'viper-insert-state-hook | |
4629 | 'viper-replace-state-hook | |
4630 | 'viper-emacs-state-hook | |
d5e52f99 MK |
4631 | 'ex-cycle-other-window |
4632 | 'ex-cycle-through-non-files | |
1e70790f | 4633 | 'viper-expert-level |
d5e52f99 | 4634 | 'major-mode |
2f3eb3b6 | 4635 | 'viper-device-type |
d5e52f99 MK |
4636 | 'color-display-p |
4637 | 'frame-parameters | |
4638 | 'minibuffer-vi-face | |
4639 | 'minibuffer-insert-face | |
4640 | 'minibuffer-emacs-face | |
4641 | )) | |
4642 | (setq salutation " | |
4643 | Congratulations! You may have unearthed a bug in Viper! | |
4644 | Please mail a concise, accurate summary of the problem to the address above. | |
4645 | ||
4646 | -------------------------------------------------------------------") | |
4647 | (setq window-config (current-window-configuration)) | |
2f3eb3b6 MK |
4648 | (with-output-to-temp-buffer " *viper-info*" |
4649 | (switch-to-buffer " *viper-info*") | |
d5e52f99 MK |
4650 | (delete-other-windows) |
4651 | (princ " | |
4652 | PLEASE FOLLOW THESE PROCEDURES | |
4653 | ------------------------------ | |
4654 | ||
4655 | Before reporting a bug, please verify that it is related to Viper, and is | |
4656 | not cause by other packages you are using. | |
4657 | ||
4658 | Don't report compilation warnings, unless you are certain that there is a | |
4659 | problem. These warnings are normal and unavoidable. | |
4660 | ||
4661 | Please note that users should not modify variables and keymaps other than | |
4662 | those advertised in the manual. Such `customization' is likely to crash | |
4663 | Viper, as it would any other improperly customized Emacs package. | |
4664 | ||
4665 | If you are reporting an error message received while executing one of the | |
4666 | Viper commands, type: | |
4667 | ||
4668 | M-x set-variable <Return> debug-on-error <Return> t <Return> | |
4669 | ||
4670 | Then reproduce the error. The above command will cause Emacs to produce a | |
4671 | back trace of the execution that leads to the error. Please include this | |
4672 | trace in your bug report. | |
4673 | ||
4674 | If you believe that one of Viper's commands goes into an infinite loop | |
4675 | \(e.g., Emacs freezes\), type: | |
4676 | ||
4677 | M-x set-variable <Return> debug-on-quit <Return> t <Return> | |
4678 | ||
4679 | Then reproduce the problem. Wait for a few seconds, then type C-g to abort | |
4680 | the current command. Include the resulting back trace in the bug report. | |
4681 | ||
4682 | Mail anyway (y or n)? ") | |
4683 | (if (y-or-n-p "Mail anyway? ") | |
4684 | () | |
4685 | (set-window-configuration window-config) | |
4686 | (error "Bug report aborted"))) | |
4687 | ||
4688 | (require 'reporter) | |
4689 | (set-window-configuration window-config) | |
4690 | ||
4691 | (reporter-submit-bug-report "kifer@cs.sunysb.edu" | |
2f3eb3b6 | 4692 | (viper-version) |
d5e52f99 MK |
4693 | varlist |
4694 | nil 'delete-other-windows | |
4695 | salutation) | |
4696 | )) | |
4697 | ||
4698 | ||
4699 | ||
4700 | ||
4701 | ;; Smoothes out the difference between Emacs' unread-command-events | |
4702 | ;; and XEmacs unread-command-event. Arg is a character, an event, a list of | |
4703 | ;; events or a sequence of keys. | |
4704 | ;; | |
4705 | ;; Due to the way unread-command-events in Emacs (not XEmacs), a non-event | |
4706 | ;; symbol in unread-command-events list may cause Emacs to turn this symbol | |
4707 | ;; into an event. Below, we delete nil from event lists, since nil is the most | |
4708 | ;; common symbol that might appear in this wrong context. | |
2f3eb3b6 MK |
4709 | (defun viper-set-unread-command-events (arg) |
4710 | (if viper-emacs-p | |
d5e52f99 MK |
4711 | (setq |
4712 | unread-command-events | |
4713 | (let ((new-events | |
4714 | (cond ((eventp arg) (list arg)) | |
4715 | ((listp arg) arg) | |
4716 | ((sequencep arg) | |
4717 | (listify-key-sequence arg)) | |
4718 | (t (error | |
2f3eb3b6 | 4719 | "viper-set-unread-command-events: Invalid argument, %S" |
d5e52f99 MK |
4720 | arg))))) |
4721 | (if (not (eventp nil)) | |
4722 | (setq new-events (delq nil new-events))) | |
4723 | (append new-events unread-command-events))) | |
4724 | ;; XEmacs | |
4725 | (setq | |
4726 | unread-command-events | |
4727 | (append | |
2f3eb3b6 | 4728 | (cond ((viper-characterp arg) (list (character-to-event arg))) |
d5e52f99 MK |
4729 | ((eventp arg) (list arg)) |
4730 | ((stringp arg) (mapcar 'character-to-event arg)) | |
4731 | ((vectorp arg) (append arg nil)) ; turn into list | |
2f3eb3b6 | 4732 | ((listp arg) (viper-eventify-list-xemacs arg)) |
d5e52f99 | 4733 | (t (error |
2f3eb3b6 | 4734 | "viper-set-unread-command-events: Invalid argument, %S" arg))) |
d5e52f99 MK |
4735 | unread-command-events)))) |
4736 | ||
4737 | ;; list is assumed to be a list of events of characters | |
2f3eb3b6 | 4738 | (defun viper-eventify-list-xemacs (lis) |
d5e52f99 MK |
4739 | (mapcar |
4740 | (function (lambda (elt) | |
2f3eb3b6 | 4741 | (cond ((viper-characterp elt) (character-to-event elt)) |
d5e52f99 MK |
4742 | ((eventp elt) elt) |
4743 | (t (error | |
2f3eb3b6 | 4744 | "viper-eventify-list-xemacs: can't convert to event, %S" |
d5e52f99 MK |
4745 | elt))))) |
4746 | lis)) | |
4747 | ||
4748 | ||
4749 | ||
4750 | ;;; viper-cmd.el ends here |