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d5e52f99 MK |
1 | ;;; viper-cmd.el --- Vi command support for Viper |
2 | ;; Copyright (C) 1997 Free Software Foundation, Inc. | |
3 | ||
4 | ||
5 | ;; Code | |
6 | ||
7 | (provide 'viper-cmd) | |
726e270f | 8 | (require 'advice) |
d5e52f99 MK |
9 | |
10 | ;; Compiler pacifier | |
11 | (defvar vip-minibuffer-current-face) | |
12 | (defvar vip-minibuffer-insert-face) | |
13 | (defvar vip-minibuffer-vi-face) | |
14 | (defvar vip-minibuffer-emacs-face) | |
15 | (defvar vip-mode-string ) | |
16 | (defvar iso-accents-mode) | |
17 | (defvar zmacs-region-stays) | |
18 | (defvar mark-even-if-inactive) | |
19 | ||
726e270f MK |
20 | ;; loading happens only in non-interactive compilation |
21 | ;; in order to spare non-viperized emacs from being viperized | |
22 | (if noninteractive | |
23 | (eval-when-compile | |
24 | (let ((load-path (cons (expand-file-name ".") load-path))) | |
25 | (or (featurep 'viper-util) | |
26 | (load "viper-util.el" nil nil 'nosuffix)) | |
27 | (or (featurep 'viper-keym) | |
28 | (load "viper-keym.el" nil nil 'nosuffix)) | |
29 | (or (featurep 'viper-mous) | |
30 | (load "viper-mous.el" nil nil 'nosuffix)) | |
31 | (or (featurep 'viper-macs) | |
32 | (load "viper-macs.el" nil nil 'nosuffix)) | |
33 | (or (featurep 'viper-ex) | |
34 | (load "viper-ex.el" nil nil 'nosuffix)) | |
35 | ))) | |
d5e52f99 MK |
36 | ;; end pacifier |
37 | ||
38 | ||
39 | (require 'viper-util) | |
40 | (require 'viper-keym) | |
41 | (require 'viper-mous) | |
42 | (require 'viper-macs) | |
43 | (require 'viper-ex) | |
44 | ||
45 | ||
46 | \f | |
47 | ;; Generic predicates | |
48 | ||
49 | ;; These test functions are shamelessly lifted from vip 4.4.2 by Aamod Sane | |
50 | ||
51 | ;; generate test functions | |
52 | ;; given symbol foo, foo-p is the test function, foos is the set of | |
53 | ;; Viper command keys | |
54 | ;; (macroexpand '(vip-test-com-defun foo)) | |
55 | ;; (defun foo-p (com) (consp (memq (if (< com 0) (- com) com) foos))) | |
56 | ||
57 | (defmacro vip-test-com-defun (name) | |
58 | (let* ((snm (symbol-name name)) | |
59 | (nm-p (intern (concat snm "-p"))) | |
60 | (nms (intern (concat snm "s")))) | |
61 | (` (defun (, nm-p) (com) | |
62 | (consp (memq (if (< com 0) (- com) com) (, nms))))))) | |
63 | ||
64 | ;; Variables for defining VI commands | |
65 | ||
66 | ;; Modifying commands that can be prefixes to movement commands | |
67 | (defconst vip-prefix-commands '(?c ?d ?y ?! ?= ?# ?< ?> ?\")) | |
68 | ;; define vip-prefix-command-p | |
69 | (vip-test-com-defun vip-prefix-command) | |
70 | ||
71 | ;; Commands that are pairs eg. dd. r and R here are a hack | |
72 | (defconst vip-charpair-commands '(?c ?d ?y ?! ?= ?< ?> ?r ?R)) | |
73 | ;; define vip-charpair-command-p | |
74 | (vip-test-com-defun vip-charpair-command) | |
75 | ||
76 | (defconst vip-movement-commands '(?b ?B ?e ?E ?f ?F ?G ?h ?H ?j ?k ?l | |
77 | ?H ?M ?L ?n ?t ?T ?w ?W ?$ ?% | |
78 | ?^ ?( ?) ?- ?+ ?| ?{ ?} ?[ ?] ?' ?` | |
79 | ?; ?, ?0 ?? ?/ | |
80 | ) | |
81 | "Movement commands") | |
82 | ;; define vip-movement-command-p | |
83 | (vip-test-com-defun vip-movement-command) | |
84 | ||
85 | (defconst vip-digit-commands '(?1 ?2 ?3 ?4 ?5 ?6 ?7 ?8 ?9) | |
86 | "Digit commands") | |
87 | ;; define vip-digit-command-p | |
88 | (vip-test-com-defun vip-digit-command) | |
89 | ||
90 | ;; Commands that can be repeated by . (dotted) | |
91 | (defconst vip-dotable-commands '(?c ?d ?C ?s ?S ?D ?> ?<)) | |
92 | ;; define vip-dotable-command-p | |
93 | (vip-test-com-defun vip-dotable-command) | |
94 | ||
95 | ;; Commands that can follow a # | |
96 | (defconst vip-hash-commands '(?c ?C ?g ?q ?s)) | |
97 | ;; define vip-hash-command-p | |
98 | (vip-test-com-defun vip-hash-command) | |
99 | ||
100 | ;; Commands that may have registers as prefix | |
101 | (defconst vip-regsuffix-commands '(?d ?y ?Y ?D ?p ?P ?x ?X)) | |
102 | ;; define vip-regsuffix-command-p | |
103 | (vip-test-com-defun vip-regsuffix-command) | |
104 | ||
105 | (defconst vip-vi-commands (append vip-movement-commands | |
106 | vip-digit-commands | |
107 | vip-dotable-commands | |
108 | vip-charpair-commands | |
109 | vip-hash-commands | |
110 | vip-prefix-commands | |
111 | vip-regsuffix-commands) | |
112 | "The list of all commands in Vi-state.") | |
113 | ;; define vip-vi-command-p | |
114 | (vip-test-com-defun vip-vi-command) | |
115 | ||
116 | \f | |
117 | ;;; CODE | |
118 | ||
119 | ;; sentinels | |
120 | ||
121 | ;; Runs vip-after-change-functions inside after-change-functions | |
122 | (defun vip-after-change-sentinel (beg end len) | |
123 | (let ((list vip-after-change-functions)) | |
124 | (while list | |
125 | (funcall (car list) beg end len) | |
126 | (setq list (cdr list))))) | |
127 | ||
128 | ;; Runs vip-before-change-functions inside before-change-functions | |
129 | (defun vip-before-change-sentinel (beg end) | |
130 | (let ((list vip-before-change-functions)) | |
131 | (while list | |
132 | (funcall (car list) beg end) | |
133 | (setq list (cdr list))))) | |
134 | ||
135 | (defsubst vip-post-command-sentinel () | |
136 | (run-hooks 'vip-post-command-hooks)) | |
137 | ||
138 | (defsubst vip-pre-command-sentinel () | |
139 | (run-hooks 'vip-pre-command-hooks)) | |
140 | ||
141 | ;; Needed so that Viper will be able to figure the last inserted | |
142 | ;; chunk of text with reasonable accuracy. | |
143 | (defsubst vip-insert-state-post-command-sentinel () | |
144 | (if (and (memq vip-current-state '(insert-state replace-state)) | |
145 | vip-insert-point | |
146 | (>= (point) vip-insert-point)) | |
147 | (setq vip-last-posn-while-in-insert-state (point-marker))) | |
148 | (if (eq vip-current-state 'insert-state) | |
149 | (progn | |
150 | (or (stringp vip-saved-cursor-color) | |
151 | (string= (vip-get-cursor-color) vip-insert-state-cursor-color) | |
152 | (setq vip-saved-cursor-color (vip-get-cursor-color))) | |
153 | (if (stringp vip-saved-cursor-color) | |
154 | (vip-change-cursor-color vip-insert-state-cursor-color)) | |
155 | )) | |
156 | (if (and (eq this-command 'dabbrev-expand) | |
157 | (integerp vip-pre-command-point) | |
158 | (> vip-insert-point vip-pre-command-point)) | |
159 | (move-marker vip-insert-point vip-pre-command-point)) | |
160 | ) | |
161 | ||
162 | (defsubst vip-insert-state-pre-command-sentinel () | |
163 | (or (memq this-command '(self-insert-command)) | |
164 | (memq (vip-event-key last-command-event) | |
165 | '(up down left right (meta f) (meta b) | |
166 | (control n) (control p) (control f) (control b))) | |
167 | (vip-restore-cursor-color-after-insert)) | |
168 | (if (and (eq this-command 'dabbrev-expand) | |
169 | (markerp vip-insert-point) | |
170 | (marker-position vip-insert-point)) | |
171 | (setq vip-pre-command-point (marker-position vip-insert-point)))) | |
172 | ||
173 | (defsubst vip-R-state-post-command-sentinel () | |
174 | ;; Restoring cursor color is needed despite | |
175 | ;; vip-replace-state-pre-command-sentinel: When you jump to another buffer in | |
176 | ;; another frame, the pre-command hook won't change cursor color to default | |
177 | ;; in that other frame. So, if the second frame cursor was red and we set | |
178 | ;; the point outside the replacement region, then the cursor color will | |
179 | ;; remain red. Restoring the default, below, prevents this. | |
180 | (if (and (<= (vip-replace-start) (point)) | |
181 | (<= (point) (vip-replace-end))) | |
182 | (vip-change-cursor-color vip-replace-overlay-cursor-color) | |
183 | (vip-restore-cursor-color-after-replace) | |
184 | )) | |
185 | ||
186 | ;; to speed up, don't change cursor color before self-insert | |
187 | ;; and common move commands | |
188 | (defsubst vip-replace-state-pre-command-sentinel () | |
189 | (or (memq this-command '(self-insert-command)) | |
190 | (memq (vip-event-key last-command-event) | |
191 | '(up down left right (meta f) (meta b) | |
192 | (control n) (control p) (control f) (control b))) | |
193 | (vip-restore-cursor-color-after-replace))) | |
194 | ||
195 | (defun vip-replace-state-post-command-sentinel () | |
196 | ;; Restoring cursor color is needed despite | |
197 | ;; vip-replace-state-pre-command-sentinel: When one jumps to another buffer | |
198 | ;; in another frame, the pre-command hook won't change cursor color to | |
199 | ;; default in that other frame. So, if the second frame cursor was red and | |
200 | ;; we set the point outside the replacement region, then the cursor color | |
201 | ;; will remain red. Restoring the default, below, fixes this problem. | |
202 | ;; | |
203 | ;; We optimize for self-insert-command's here, since they either don't change | |
204 | ;; cursor color or, if they terminate replace mode, the color will be changed | |
205 | ;; in vip-finish-change | |
206 | (or (memq this-command '(self-insert-command)) | |
207 | (vip-restore-cursor-color-after-replace)) | |
208 | (cond | |
209 | ((eq vip-current-state 'replace-state) | |
210 | ;; delete characters to compensate for inserted chars. | |
211 | (let ((replace-boundary (vip-replace-end))) | |
212 | (save-excursion | |
213 | (goto-char vip-last-posn-in-replace-region) | |
214 | (delete-char vip-replace-chars-to-delete) | |
215 | (setq vip-replace-chars-to-delete 0 | |
216 | vip-replace-chars-deleted 0) | |
217 | ;; terminate replace mode if reached replace limit | |
218 | (if (= vip-last-posn-in-replace-region | |
219 | (vip-replace-end)) | |
220 | (vip-finish-change vip-last-posn-in-replace-region))) | |
221 | ||
222 | (if (and (<= (vip-replace-start) (point)) | |
223 | (<= (point) replace-boundary)) | |
224 | (progn | |
225 | ;; the state may have changed in vip-finish-change above | |
226 | (if (eq vip-current-state 'replace-state) | |
227 | (vip-change-cursor-color vip-replace-overlay-cursor-color)) | |
228 | (setq vip-last-posn-in-replace-region (point-marker)))) | |
229 | )) | |
230 | ||
231 | (t ;; terminate replace mode if changed Viper states. | |
232 | (vip-finish-change vip-last-posn-in-replace-region)))) | |
233 | ||
234 | ||
235 | ;; changing mode | |
236 | ||
237 | ;; Change state to NEW-STATE---either emacs-state, vi-state, or insert-state. | |
238 | (defun vip-change-state (new-state) | |
239 | ;; Keep vip-post/pre-command-hooks fresh. | |
240 | ;; We remove then add vip-post/pre-command-sentinel since it is very | |
241 | ;; desirable that vip-pre-command-sentinel is the last hook and | |
242 | ;; vip-post-command-sentinel is the first hook. | |
243 | (remove-hook 'post-command-hook 'vip-post-command-sentinel) | |
244 | (add-hook 'post-command-hook 'vip-post-command-sentinel) | |
245 | (remove-hook 'pre-command-hook 'vip-pre-command-sentinel) | |
246 | (add-hook 'pre-command-hook 'vip-pre-command-sentinel t) | |
247 | ;; These hooks will be added back if switching to insert/replace mode | |
248 | (vip-remove-hook 'vip-post-command-hooks | |
249 | 'vip-insert-state-post-command-sentinel) | |
250 | (vip-remove-hook 'vip-pre-command-hooks | |
251 | 'vip-insert-state-pre-command-sentinel) | |
252 | (cond ((eq new-state 'vi-state) | |
253 | (cond ((member vip-current-state '(insert-state replace-state)) | |
254 | ||
255 | ;; move vip-last-posn-while-in-insert-state | |
256 | ;; This is a normal hook that is executed in insert/replace | |
257 | ;; states after each command. In Vi/Emacs state, it does | |
258 | ;; nothing. We need to execute it here to make sure that | |
259 | ;; the last posn was recorded when we hit ESC. | |
260 | ;; It may be left unrecorded if the last thing done in | |
261 | ;; insert/repl state was dabbrev-expansion or abbrev | |
262 | ;; expansion caused by hitting ESC | |
263 | (vip-insert-state-post-command-sentinel) | |
264 | ||
265 | (condition-case conds | |
266 | (progn | |
267 | (vip-save-last-insertion | |
268 | vip-insert-point | |
269 | vip-last-posn-while-in-insert-state) | |
270 | (if vip-began-as-replace | |
271 | (setq vip-began-as-replace nil) | |
272 | ;; repeat insert commands if numerical arg > 1 | |
273 | (save-excursion | |
274 | (vip-repeat-insert-command)))) | |
275 | (error | |
276 | (vip-message-conditions conds))) | |
277 | ||
278 | (if (> (length vip-last-insertion) 0) | |
279 | (vip-push-onto-ring vip-last-insertion | |
280 | 'vip-insertion-ring)) | |
281 | ||
282 | (if vip-ex-style-editing-in-insert | |
283 | (or (bolp) (backward-char 1)))) | |
284 | )) | |
285 | ||
286 | ;; insert or replace | |
287 | ((memq new-state '(insert-state replace-state)) | |
288 | (if (memq vip-current-state '(emacs-state vi-state)) | |
289 | (vip-move-marker-locally 'vip-insert-point (point))) | |
290 | (vip-move-marker-locally 'vip-last-posn-while-in-insert-state (point)) | |
291 | (vip-add-hook 'vip-post-command-hooks | |
292 | 'vip-insert-state-post-command-sentinel t) | |
293 | (vip-add-hook 'vip-pre-command-hooks | |
294 | 'vip-insert-state-pre-command-sentinel t)) | |
295 | ) ; outermost cond | |
296 | ||
297 | ;; Nothing needs to be done to switch to emacs mode! Just set some | |
298 | ;; variables, which is already done in vip-change-state-to-emacs! | |
299 | ||
300 | (setq vip-current-state new-state) | |
301 | (vip-normalize-minor-mode-map-alist) | |
302 | (vip-adjust-keys-for new-state) | |
303 | (vip-set-mode-vars-for new-state) | |
304 | (vip-refresh-mode-line) | |
305 | ) | |
306 | ||
307 | ||
308 | ||
309 | (defun vip-adjust-keys-for (state) | |
310 | "Make necessary adjustments to keymaps before entering STATE." | |
311 | (cond ((memq state '(insert-state replace-state)) | |
312 | (if vip-auto-indent | |
313 | (progn | |
314 | (define-key vip-insert-basic-map "\C-m" 'vip-autoindent) | |
315 | (if vip-want-emacs-keys-in-insert | |
316 | ;; expert | |
317 | (define-key vip-insert-basic-map "\C-j" nil) | |
318 | ;; novice | |
319 | (define-key vip-insert-basic-map "\C-j" 'vip-autoindent))) | |
320 | (define-key vip-insert-basic-map "\C-m" nil) | |
321 | (define-key vip-insert-basic-map "\C-j" nil)) | |
322 | ||
323 | (setq vip-insert-diehard-minor-mode | |
324 | (not vip-want-emacs-keys-in-insert)) | |
325 | ||
326 | (if vip-want-ctl-h-help | |
327 | (progn | |
328 | (define-key vip-insert-basic-map [(control h)] 'help-command) | |
329 | (define-key vip-replace-map [(control h)] 'help-command)) | |
330 | (define-key vip-insert-basic-map | |
331 | [(control h)] 'vip-del-backward-char-in-insert) | |
332 | (define-key vip-replace-map | |
333 | [(control h)] 'vip-del-backward-char-in-replace))) | |
334 | ||
335 | (t ; Vi state | |
336 | (setq vip-vi-diehard-minor-mode (not vip-want-emacs-keys-in-vi)) | |
337 | (if vip-want-ctl-h-help | |
338 | (define-key vip-vi-basic-map [(control h)] 'help-command) | |
339 | (define-key vip-vi-basic-map [(control h)] 'vip-backward-char))) | |
340 | )) | |
341 | ||
342 | ||
343 | ;; Normalizes minor-mode-map-alist by putting Viper keymaps first. | |
344 | ;; This ensures that Viper bindings are in effect, regardless of which minor | |
345 | ;; modes were turned on by the user or by other packages. | |
346 | (defun vip-normalize-minor-mode-map-alist () | |
347 | (setq minor-mode-map-alist | |
348 | (vip-append-filter-alist | |
349 | (list | |
350 | (cons 'vip-vi-intercept-minor-mode vip-vi-intercept-map) | |
351 | (cons 'vip-vi-minibuffer-minor-mode vip-minibuffer-map) | |
352 | (cons 'vip-vi-local-user-minor-mode vip-vi-local-user-map) | |
353 | (cons 'vip-vi-kbd-minor-mode vip-vi-kbd-map) | |
354 | (cons 'vip-vi-global-user-minor-mode vip-vi-global-user-map) | |
355 | (cons 'vip-vi-state-modifier-minor-mode | |
356 | (if (keymapp | |
357 | (cdr (assoc major-mode vip-vi-state-modifier-alist))) | |
358 | (cdr (assoc major-mode vip-vi-state-modifier-alist)) | |
359 | vip-empty-keymap)) | |
360 | (cons 'vip-vi-diehard-minor-mode vip-vi-diehard-map) | |
361 | (cons 'vip-vi-basic-minor-mode vip-vi-basic-map) | |
362 | (cons 'vip-insert-intercept-minor-mode vip-insert-intercept-map) | |
363 | (cons 'vip-replace-minor-mode vip-replace-map) | |
364 | ;; vip-insert-minibuffer-minor-mode must come after | |
365 | ;; vip-replace-minor-mode | |
366 | (cons 'vip-insert-minibuffer-minor-mode | |
367 | vip-minibuffer-map) | |
368 | (cons 'vip-insert-local-user-minor-mode | |
369 | vip-insert-local-user-map) | |
370 | (cons 'vip-insert-kbd-minor-mode vip-insert-kbd-map) | |
371 | (cons 'vip-insert-global-user-minor-mode | |
372 | vip-insert-global-user-map) | |
373 | (cons 'vip-insert-state-modifier-minor-mode | |
374 | (if (keymapp | |
375 | (cdr | |
376 | (assoc major-mode vip-insert-state-modifier-alist))) | |
377 | (cdr | |
378 | (assoc major-mode vip-insert-state-modifier-alist)) | |
379 | vip-empty-keymap)) | |
380 | (cons 'vip-insert-diehard-minor-mode vip-insert-diehard-map) | |
381 | (cons 'vip-insert-basic-minor-mode vip-insert-basic-map) | |
382 | (cons 'vip-emacs-intercept-minor-mode | |
383 | vip-emacs-intercept-map) | |
384 | (cons 'vip-emacs-local-user-minor-mode | |
385 | vip-emacs-local-user-map) | |
386 | (cons 'vip-emacs-kbd-minor-mode vip-emacs-kbd-map) | |
387 | (cons 'vip-emacs-global-user-minor-mode | |
388 | vip-emacs-global-user-map) | |
389 | (cons 'vip-emacs-state-modifier-minor-mode | |
390 | (if (keymapp | |
391 | (cdr | |
392 | (assoc major-mode vip-emacs-state-modifier-alist))) | |
393 | (cdr | |
394 | (assoc major-mode vip-emacs-state-modifier-alist)) | |
395 | vip-empty-keymap)) | |
396 | ) | |
397 | minor-mode-map-alist))) | |
398 | ||
399 | ||
400 | ||
401 | ||
402 | \f | |
403 | ;; Viper mode-changing commands and utilities | |
404 | ||
405 | ;; Modifies mode-line-buffer-identification. | |
406 | (defun vip-refresh-mode-line () | |
407 | (setq vip-mode-string | |
408 | (cond ((eq vip-current-state 'emacs-state) vip-emacs-state-id) | |
409 | ((eq vip-current-state 'vi-state) vip-vi-state-id) | |
410 | ((eq vip-current-state 'replace-state) vip-replace-state-id) | |
411 | ((eq vip-current-state 'insert-state) vip-insert-state-id))) | |
412 | ||
413 | ;; Sets Viper mode string in global-mode-string | |
414 | (force-mode-line-update)) | |
415 | ||
416 | ;;;###autoload | |
417 | (defun viper-mode () | |
418 | "Turn on Viper emulation of Vi." | |
419 | (interactive) | |
420 | (if (not noninteractive) | |
421 | (progn | |
422 | (if vip-first-time ; This check is important. Without it, startup and | |
423 | (progn ; expert-level msgs mix up when viper-mode recurses | |
424 | (setq vip-first-time nil) | |
425 | (if (not vip-inhibit-startup-message) | |
426 | (save-window-excursion | |
427 | (setq vip-inhibit-startup-message t) | |
428 | (delete-other-windows) | |
429 | (switch-to-buffer "Viper Startup Message") | |
430 | (erase-buffer) | |
431 | (insert | |
432 | (substitute-command-keys | |
433 | "Viper Is a Package for Emacs Rebels. | |
434 | It is also a VI Plan for Emacs Rescue and a venomous VI PERil. | |
435 | ||
436 | Technically speaking, Viper is a Vi emulation package for GNU Emacs 19 and | |
437 | XEmacs 19. It supports virtually all of Vi and Ex functionality, extending | |
438 | and improving upon much of it. | |
439 | ||
440 | 1. Viper supports Vi at several levels. Level 1 is the closest to Vi, | |
441 | level 5 provides the most flexibility to depart from many Vi conventions. | |
442 | ||
443 | You will be asked to specify your user level in a following screen. | |
444 | ||
445 | If you select user level 1 then the keys ^X, ^C, ^Z, and ^G will behave | |
446 | as in VI, to smooth transition to Viper for the beginners. However, to | |
447 | use Emacs productively, you are advised to reach user level 3 or higher. | |
448 | ||
449 | If your user level is 2 or higher, ^X and ^C will invoke Emacs | |
450 | functions,as usual in Emacs; ^Z will toggle vi/emacs modes, and | |
451 | ^G will be the usual Emacs's keyboard-quit (something like ^C in VI). | |
452 | ||
453 | 2. Vi exit functions (e.g., :wq, ZZ) work on INDIVIDUAL files -- they | |
454 | do not cause Emacs to quit, except at user level 1 (a novice). | |
455 | 3. ^X^C EXITS EMACS. | |
456 | 4. Viper supports multiple undo: `u' will undo. Typing `.' will repeat | |
457 | undo. Another `u' changes direction. | |
458 | ||
459 | 6. Emacs Meta functions are invoked by typing `C-\\' or `\\ ESC'. | |
460 | On a window system, the best way is to use the Meta-key. | |
461 | 7. Try \\[keyboard-quit] and \\[abort-recursive-edit] repeatedly,if | |
462 | something funny happens. This would abort the current editing command. | |
463 | ||
464 | You can get more information on Viper by: | |
465 | ||
466 | a. Typing `:help' in Vi state | |
467 | b. Printing Viper manual, found in ./etc/viper.dvi | |
468 | c. Printing ViperCard, the Quick Reference, found in ./etc/viperCard.dvi | |
469 | ||
470 | This startup message appears whenever you load Viper, unless you type `y' now." | |
471 | )) | |
472 | (goto-char (point-min)) | |
473 | (if (y-or-n-p "Inhibit Viper startup message? ") | |
474 | (vip-save-setting | |
475 | 'vip-inhibit-startup-message | |
476 | "Viper startup message inhibited" | |
477 | vip-custom-file-name t)) | |
478 | ;;(kill-buffer (current-buffer)) | |
479 | (message | |
480 | "The last message is in buffer `Viper Startup Message'") | |
481 | (sit-for 4) | |
482 | )) | |
483 | (vip-set-expert-level 'dont-change-unless))) | |
484 | (vip-change-state-to-vi)))) | |
485 | ||
486 | ;;;###autoload | |
487 | (defalias 'vip-mode 'viper-mode) | |
488 | ||
489 | ||
490 | ;; Switch from Insert state to Vi state. | |
491 | (defun vip-exit-insert-state () | |
492 | (interactive) | |
493 | (vip-change-state-to-vi)) | |
494 | ||
495 | (defun vip-set-mode-vars-for (state) | |
496 | "Sets Viper minor mode variables to put Viper's state STATE in effect." | |
497 | ||
498 | ;; Emacs state | |
499 | (setq vip-vi-minibuffer-minor-mode nil | |
500 | vip-insert-minibuffer-minor-mode nil | |
501 | vip-vi-intercept-minor-mode nil | |
502 | vip-insert-intercept-minor-mode nil | |
503 | ||
504 | vip-vi-local-user-minor-mode nil | |
505 | vip-vi-kbd-minor-mode nil | |
506 | vip-vi-global-user-minor-mode nil | |
507 | vip-vi-state-modifier-minor-mode nil | |
508 | vip-vi-diehard-minor-mode nil | |
509 | vip-vi-basic-minor-mode nil | |
510 | ||
511 | vip-replace-minor-mode nil | |
512 | ||
513 | vip-insert-local-user-minor-mode nil | |
514 | vip-insert-kbd-minor-mode nil | |
515 | vip-insert-global-user-minor-mode nil | |
516 | vip-insert-state-modifier-minor-mode nil | |
517 | vip-insert-diehard-minor-mode nil | |
518 | vip-insert-basic-minor-mode nil | |
519 | vip-emacs-intercept-minor-mode t | |
520 | vip-emacs-local-user-minor-mode t | |
521 | vip-emacs-kbd-minor-mode (not (vip-is-in-minibuffer)) | |
522 | vip-emacs-global-user-minor-mode t | |
523 | vip-emacs-state-modifier-minor-mode t | |
524 | ) | |
525 | ||
526 | ;; Vi state | |
527 | (if (eq state 'vi-state) ; adjust for vi-state | |
528 | (setq | |
529 | vip-vi-intercept-minor-mode t | |
530 | vip-vi-minibuffer-minor-mode (vip-is-in-minibuffer) | |
531 | vip-vi-local-user-minor-mode t | |
532 | vip-vi-kbd-minor-mode (not (vip-is-in-minibuffer)) | |
533 | vip-vi-global-user-minor-mode t | |
534 | vip-vi-state-modifier-minor-mode t | |
535 | ;; don't let the diehard keymap block command completion | |
536 | ;; and other things in the minibuffer | |
537 | vip-vi-diehard-minor-mode (not | |
538 | (or vip-want-emacs-keys-in-vi | |
539 | (vip-is-in-minibuffer))) | |
540 | vip-vi-basic-minor-mode t | |
541 | vip-emacs-intercept-minor-mode nil | |
542 | vip-emacs-local-user-minor-mode nil | |
543 | vip-emacs-kbd-minor-mode nil | |
544 | vip-emacs-global-user-minor-mode nil | |
545 | vip-emacs-state-modifier-minor-mode nil | |
546 | )) | |
547 | ||
548 | ;; Insert and Replace states | |
549 | (if (member state '(insert-state replace-state)) | |
550 | (setq | |
551 | vip-insert-intercept-minor-mode t | |
552 | vip-replace-minor-mode (eq state 'replace-state) | |
553 | vip-insert-minibuffer-minor-mode (vip-is-in-minibuffer) | |
554 | vip-insert-local-user-minor-mode t | |
555 | vip-insert-kbd-minor-mode (not (vip-is-in-minibuffer)) | |
556 | vip-insert-global-user-minor-mode t | |
557 | vip-insert-state-modifier-minor-mode t | |
558 | ;; don't let the diehard keymap block command completion | |
559 | ;; and other things in the minibuffer | |
560 | vip-insert-diehard-minor-mode (not | |
561 | (or vip-want-emacs-keys-in-insert | |
562 | (vip-is-in-minibuffer))) | |
563 | vip-insert-basic-minor-mode t | |
564 | vip-emacs-intercept-minor-mode nil | |
565 | vip-emacs-local-user-minor-mode nil | |
566 | vip-emacs-kbd-minor-mode nil | |
567 | vip-emacs-global-user-minor-mode nil | |
568 | vip-emacs-state-modifier-minor-mode nil | |
569 | )) | |
570 | ||
571 | ;; minibuffer faces | |
572 | (if (vip-has-face-support-p) | |
573 | (setq vip-minibuffer-current-face | |
574 | (cond ((eq state 'emacs-state) vip-minibuffer-emacs-face) | |
575 | ((eq state 'vi-state) vip-minibuffer-vi-face) | |
576 | ((memq state '(insert-state replace-state)) | |
577 | vip-minibuffer-insert-face)))) | |
578 | ||
579 | (if (vip-is-in-minibuffer) | |
580 | (vip-set-minibuffer-overlay)) | |
581 | ) | |
582 | ||
583 | ;; This also takes care of the annoying incomplete lines in files. | |
584 | ;; Also, this fixes `undo' to work vi-style for complex commands. | |
585 | (defun vip-change-state-to-vi () | |
586 | "Change Viper state to Vi." | |
587 | (interactive) | |
588 | (if (and vip-first-time (not (vip-is-in-minibuffer))) | |
589 | (viper-mode) | |
590 | (if overwrite-mode (overwrite-mode nil)) | |
591 | (if abbrev-mode (expand-abbrev)) | |
592 | (if (and auto-fill-function (> (current-column) fill-column)) | |
593 | (funcall auto-fill-function)) | |
594 | ;; don't leave whitespace lines around | |
595 | (if (and (memq last-command | |
596 | '(vip-autoindent | |
597 | vip-open-line vip-Open-line | |
598 | vip-replace-state-exit-cmd)) | |
599 | (vip-over-whitespace-line)) | |
600 | (indent-to-left-margin)) | |
601 | (vip-add-newline-at-eob-if-necessary) | |
602 | (if vip-undo-needs-adjustment (vip-adjust-undo)) | |
603 | (vip-change-state 'vi-state) | |
604 | ||
605 | ;; always turn off iso-accents-mode, or else we won't be able to use the | |
606 | ;; keys `,',^ in Vi state, as they will do accents instead of Vi actions. | |
607 | (if (and (boundp 'iso-accents-mode) iso-accents-mode) | |
608 | (iso-accents-mode -1)) | |
609 | ||
610 | (vip-restore-cursor-color-after-insert) | |
611 | ||
612 | ;; Protection against user errors in hooks | |
613 | (condition-case conds | |
614 | (run-hooks 'vip-vi-state-hook) | |
615 | (error | |
616 | (vip-message-conditions conds))))) | |
617 | ||
618 | (defun vip-change-state-to-insert () | |
619 | "Change Viper state to Insert." | |
620 | (interactive) | |
621 | (vip-change-state 'insert-state) | |
622 | (if (and vip-automatic-iso-accents (fboundp 'iso-accents-mode)) | |
623 | (iso-accents-mode 1)) ; turn iso accents on | |
624 | ||
625 | (or (stringp vip-saved-cursor-color) | |
626 | (string= (vip-get-cursor-color) vip-insert-state-cursor-color) | |
627 | (setq vip-saved-cursor-color (vip-get-cursor-color))) | |
628 | ;; Commented out, because if vip-change-state-to-insert is executed | |
629 | ;; non-interactively then the old cursor color may get lost. Same old Emacs | |
630 | ;; bug related to local variables? | |
631 | ;;;(if (stringp vip-saved-cursor-color) | |
632 | ;;; (vip-change-cursor-color vip-insert-state-cursor-color)) | |
633 | ;; Protection against user errors in hooks | |
634 | (condition-case conds | |
635 | (run-hooks 'vip-insert-state-hook) | |
636 | (error | |
637 | (vip-message-conditions conds)))) | |
638 | ||
639 | (defsubst vip-downgrade-to-insert () | |
640 | (setq vip-current-state 'insert-state | |
641 | vip-replace-minor-mode nil) | |
642 | ) | |
643 | ||
644 | ||
645 | ||
646 | ;; Change to replace state. When the end of replacement region is reached, | |
647 | ;; replace state changes to insert state. | |
648 | (defun vip-change-state-to-replace (&optional non-R-cmd) | |
649 | (vip-change-state 'replace-state) | |
650 | (if (and vip-automatic-iso-accents (fboundp 'iso-accents-mode)) | |
651 | (iso-accents-mode 1)) ; turn iso accents on | |
652 | ;; Run insert-state-hook | |
653 | (condition-case conds | |
654 | (run-hooks 'vip-insert-state-hook 'vip-replace-state-hook) | |
655 | (error | |
656 | (vip-message-conditions conds))) | |
657 | ||
658 | (if non-R-cmd | |
659 | (vip-start-replace) | |
660 | ;; 'R' is implemented using Emacs's overwrite-mode | |
661 | (vip-start-R-mode)) | |
662 | ) | |
663 | ||
664 | ||
665 | (defun vip-change-state-to-emacs () | |
666 | "Change Viper state to Emacs." | |
667 | (interactive) | |
668 | (vip-change-state 'emacs-state) | |
669 | (if (and vip-automatic-iso-accents (fboundp 'iso-accents-mode)) | |
670 | (iso-accents-mode 1)) ; turn iso accents on | |
671 | ||
672 | ;; Protection agains user errors in hooks | |
673 | (condition-case conds | |
674 | (run-hooks 'vip-emacs-state-hook) | |
675 | (error | |
676 | (vip-message-conditions conds)))) | |
677 | ||
678 | ;; escape to emacs mode termporarily | |
679 | (defun vip-escape-to-emacs (arg &optional events) | |
680 | "Escape to Emacs state from Vi state for one Emacs command. | |
681 | ARG is used as the prefix value for the executed command. If | |
682 | EVENTS is a list of events, which become the beginning of the command." | |
683 | (interactive "P") | |
684 | (if (= last-command-char ?\\) | |
685 | (message "Switched to EMACS state for the next command...")) | |
686 | (vip-escape-to-state arg events 'emacs-state)) | |
687 | ||
688 | ;; escape to Vi mode termporarily | |
689 | (defun vip-escape-to-vi (arg) | |
690 | "Escape from Emacs state to Vi state for one Vi 1-character command. | |
691 | If the Vi command that the user types has a prefix argument, e.g., `d2w', then | |
692 | Vi's prefix argument will be used. Otherwise, the prefix argument passed to | |
693 | `vip-escape-to-vi' is used." | |
694 | (interactive "P") | |
695 | (message "Switched to VI state for the next command...") | |
696 | (vip-escape-to-state arg nil 'vi-state)) | |
697 | ||
698 | ;; Escape to STATE mode for one Emacs command. | |
699 | (defun vip-escape-to-state (arg events state) | |
700 | ;;(let (com key prefix-arg) | |
701 | (let (com key) | |
702 | ;; this temporarily turns off Viper's minor mode keymaps | |
703 | (vip-set-mode-vars-for state) | |
704 | (vip-normalize-minor-mode-map-alist) | |
705 | (if events (vip-set-unread-command-events events)) | |
706 | ||
707 | ;; protect against keyboard quit and other errors | |
708 | (condition-case nil | |
709 | (let (vip-vi-kbd-minor-mode | |
710 | vip-insert-kbd-minor-mode | |
711 | vip-emacs-kbd-minor-mode) | |
712 | (unwind-protect | |
713 | (progn | |
714 | (setq com (key-binding (setq key | |
715 | (if vip-xemacs-p | |
716 | (read-key-sequence nil) | |
717 | (read-key-sequence nil t))))) | |
718 | ;; In case of binding indirection--chase definitions. | |
719 | ;; Have to do it here because we execute this command under | |
720 | ;; different keymaps, so command-execute may not do the | |
721 | ;; right thing there | |
722 | (while (vectorp com) (setq com (key-binding com)))) | |
723 | nil) | |
724 | ;; Execute command com in the original Viper state, not in state | |
725 | ;; `state'. Otherwise, if we switch buffers while executing the | |
726 | ;; escaped to command, Viper's mode vars will remain those of | |
727 | ;; `state'. When we return to the orig buffer, the bindings will be | |
728 | ;; screwed up. | |
729 | (vip-set-mode-vars-for vip-current-state) | |
730 | ||
731 | ;; this-command, last-command-char, last-command-event | |
732 | (setq this-command com) | |
733 | (if vip-xemacs-p ; XEmacs represents key sequences as vectors | |
734 | (setq last-command-event (vip-copy-event (vip-seq-last-elt key)) | |
735 | last-command-char (event-to-character last-command-event)) | |
736 | ;; Emacs represents them as sequences (str or vec) | |
737 | (setq last-command-event (vip-copy-event (vip-seq-last-elt key)) | |
738 | last-command-char last-command-event)) | |
739 | ||
740 | (if (commandp com) | |
741 | (progn | |
742 | (setq prefix-arg (or prefix-arg arg)) | |
743 | (command-execute com))) | |
744 | ) | |
745 | (quit (ding)) | |
746 | (error (beep 1)))) | |
747 | ;; set state in the new buffer | |
748 | (vip-set-mode-vars-for vip-current-state)) | |
749 | ||
750 | (defun vip-exec-form-in-vi (form) | |
751 | "Execute FORM in Vi state, regardless of the Ccurrent Vi state." | |
752 | (let ((buff (current-buffer)) | |
753 | result) | |
754 | (vip-set-mode-vars-for 'vi-state) | |
755 | ||
756 | (condition-case nil | |
757 | (setq result (eval form)) | |
758 | (error | |
759 | (signal 'quit nil))) | |
760 | ||
761 | (if (not (equal buff (current-buffer))) ; cmd switched buffer | |
762 | (save-excursion | |
763 | (set-buffer buff) | |
764 | (vip-set-mode-vars-for vip-current-state))) | |
765 | (vip-set-mode-vars-for vip-current-state) | |
766 | result)) | |
767 | ||
768 | (defun vip-exec-form-in-emacs (form) | |
769 | "Execute FORM in Emacs, temporarily disabling Viper's minor modes. | |
770 | Similar to vip-escape-to-emacs, but accepts forms rather than keystrokes." | |
771 | (let ((buff (current-buffer)) | |
772 | result) | |
773 | (vip-set-mode-vars-for 'emacs-state) | |
774 | (setq result (eval form)) | |
775 | (if (not (equal buff (current-buffer))) ; cmd switched buffer | |
776 | (save-excursion | |
777 | (set-buffer buff) | |
778 | (vip-set-mode-vars-for vip-current-state))) | |
779 | (vip-set-mode-vars-for vip-current-state) | |
780 | result)) | |
781 | ||
782 | ||
783 | ;; This is needed because minor modes sometimes override essential Viper | |
784 | ;; bindings. By letting Viper know which files these modes are in, it will | |
785 | ;; arrange to reorganize minor-mode-map-alist so that things will work right. | |
786 | (defun vip-harness-minor-mode (load-file) | |
787 | "Familiarize Viper with a minor mode defined in LOAD_FILE. | |
788 | Minor modes that have their own keymaps may overshadow Viper keymaps. | |
789 | This function is designed to make Viper aware of the packages that define | |
790 | such minor modes. | |
791 | Usage: | |
792 | (vip-harness-minor-mode load-file) | |
793 | ||
794 | LOAD-FILE is a name of the file where the specific minor mode is defined. | |
795 | Suffixes such as .el or .elc should be stripped." | |
796 | ||
797 | (interactive "sEnter name of the load file: ") | |
798 | ||
799 | (vip-eval-after-load load-file '(vip-normalize-minor-mode-map-alist)) | |
800 | ||
801 | ;; Change the default for minor-mode-map-alist each time a harnessed minor | |
802 | ;; mode adds its own keymap to the a-list. | |
803 | (vip-eval-after-load | |
804 | load-file '(setq-default minor-mode-map-alist minor-mode-map-alist)) | |
805 | ) | |
806 | ||
807 | ||
808 | (defun vip-ESC (arg) | |
809 | "Emulate ESC key in Emacs. | |
810 | Prevents multiple escape keystrokes if vip-no-multiple-ESC is true. | |
811 | If vip-no-multiple-ESC is 'twice double ESC would ding in vi-state. | |
812 | Other ESC sequences are emulated via the current Emacs's major mode | |
813 | keymap. This is more convenient on TTYs, since this won't block | |
814 | function keys such as up,down, etc. ESC will also will also work as | |
815 | a Meta key in this case. When vip-no-multiple-ESC is nil, ESC functions | |
816 | as a Meta key and any number of multiple escapes is allowed." | |
817 | (interactive "P") | |
818 | (let (char) | |
819 | (cond ((and (not vip-no-multiple-ESC) (eq vip-current-state 'vi-state)) | |
820 | (setq char (vip-read-char-exclusive)) | |
821 | (vip-escape-to-emacs arg (list ?\e char) )) | |
822 | ((and (eq vip-no-multiple-ESC 'twice) | |
823 | (eq vip-current-state 'vi-state)) | |
824 | (setq char (vip-read-char-exclusive)) | |
825 | (if (= char (string-to-char vip-ESC-key)) | |
826 | (ding) | |
827 | (vip-escape-to-emacs arg (list ?\e char) ))) | |
828 | (t (ding))) | |
829 | )) | |
830 | ||
831 | (defun vip-alternate-Meta-key (arg) | |
832 | "Simulate Emacs Meta key." | |
833 | (interactive "P") | |
834 | (sit-for 1) (message "ESC-") | |
835 | (vip-escape-to-emacs arg '(?\e))) | |
836 | ||
837 | (defun vip-toggle-key-action () | |
838 | "Action bound to `vip-toggle-key'." | |
839 | (interactive) | |
840 | (if (and (< vip-expert-level 2) (equal vip-toggle-key "\C-z")) | |
841 | (if (vip-window-display-p) | |
842 | (vip-iconify) | |
843 | (suspend-emacs)) | |
844 | (vip-change-state-to-emacs))) | |
845 | ||
846 | \f | |
847 | ;; Intercept ESC sequences on dumb terminals. | |
848 | ;; Based on the idea contributed by Marcelino Veiga Tuimil <mveiga@dit.upm.es> | |
849 | ||
850 | ;; Check if last key was ESC and if so try to reread it as a function key. | |
851 | ;; But only if there are characters to read during a very short time. | |
852 | ;; Returns the last event, if any. | |
853 | (defun vip-envelop-ESC-key () | |
854 | (let ((event last-input-event) | |
855 | (keyseq [nil]) | |
856 | inhibit-quit) | |
857 | (if (vip-ESC-event-p event) | |
858 | (progn | |
859 | (if (vip-fast-keysequence-p) | |
860 | (progn | |
861 | (let (minor-mode-map-alist) | |
862 | (vip-set-unread-command-events event) | |
863 | (setq keyseq | |
864 | (funcall | |
865 | (ad-get-orig-definition 'read-key-sequence) nil)) | |
866 | ) ; let | |
867 | ;; If keyseq translates into something that still has ESC | |
868 | ;; at the beginning, separate ESC from the rest of the seq. | |
869 | ;; In XEmacs we check for events that are keypress meta-key | |
870 | ;; and convert them into [escape key] | |
871 | ;; | |
872 | ;; This is needed for the following reason: | |
873 | ;; If ESC is the first symbol, we interpret it as if the | |
874 | ;; user typed ESC and then quickly some other symbols. | |
875 | ;; If ESC is not the first one, then the key sequence | |
876 | ;; entered was apparently translated into a function key or | |
877 | ;; something (e.g., one may have | |
878 | ;; (define-key function-key-map "\e[192z" [f11]) | |
879 | ;; which would translate the escape-sequence generated by | |
880 | ;; f11 in an xterm window into the symbolic key f11. | |
881 | ;; | |
882 | ;; If `first-key' is not an ESC event, we make it into the | |
883 | ;; last-command-event in order to pretend that this key was | |
884 | ;; pressed. This is needed to allow arrow keys to be bound to | |
885 | ;; macros. Otherwise, vip-exec-mapped-kbd-macro will think that | |
886 | ;; the last event was ESC and so it'll execute whatever is | |
887 | ;; bound to ESC. (Viper macros can't be bound to | |
888 | ;; ESC-sequences). | |
889 | (let* ((first-key (elt keyseq 0)) | |
890 | (key-mod (event-modifiers first-key))) | |
891 | (cond ((vip-ESC-event-p first-key) | |
892 | ;; put keys following ESC on the unread list | |
893 | ;; and return ESC as the key-sequence | |
894 | (vip-set-unread-command-events (subseq keyseq 1)) | |
895 | (setq last-input-event event | |
896 | keyseq (if vip-emacs-p | |
897 | "\e" | |
898 | (vector (character-to-event ?\e))))) | |
899 | ((and vip-xemacs-p | |
900 | (key-press-event-p first-key) | |
901 | (equal '(meta) key-mod)) | |
902 | (vip-set-unread-command-events | |
903 | (vconcat (vector | |
904 | (character-to-event (event-key first-key))) | |
905 | (subseq keyseq 1))) | |
906 | (setq last-input-event event | |
907 | keyseq (vector (character-to-event ?\e)))) | |
908 | ((eventp first-key) | |
909 | (setq last-command-event (vip-copy-event first-key))) | |
910 | )) | |
911 | ) ; end progn | |
912 | ||
913 | ;; this is escape event with nothing after it | |
914 | ;; put in unread-command-event and then re-read | |
915 | (vip-set-unread-command-events event) | |
916 | (setq keyseq | |
917 | (funcall (ad-get-orig-definition 'read-key-sequence) nil)) | |
918 | )) | |
919 | ;; not an escape event | |
920 | (setq keyseq (vector event))) | |
921 | keyseq)) | |
922 | ||
923 | ||
d5e52f99 MK |
924 | |
925 | ;; Listen to ESC key. | |
926 | ;; If a sequence of keys starting with ESC is issued with very short delays, | |
927 | ;; interpret these keys in Emacs mode, so ESC won't be interpreted as a Vi key. | |
928 | (defun vip-intercept-ESC-key () | |
929 | "Function that implements ESC key in Viper emulation of Vi." | |
930 | (interactive) | |
931 | (let ((cmd (or (key-binding (vip-envelop-ESC-key)) | |
932 | '(lambda () (interactive) (error ""))))) | |
933 | ||
934 | ;; call the actual function to execute ESC (if no other symbols followed) | |
935 | ;; or the key bound to the ESC sequence (if the sequence was issued | |
936 | ;; with very short delay between characters. | |
937 | (if (eq cmd 'vip-intercept-ESC-key) | |
938 | (setq cmd | |
939 | (cond ((eq vip-current-state 'vi-state) | |
940 | 'vip-ESC) | |
941 | ((eq vip-current-state 'insert-state) | |
942 | 'vip-exit-insert-state) | |
943 | ((eq vip-current-state 'replace-state) | |
944 | 'vip-replace-state-exit-cmd) | |
945 | (t 'vip-change-state-to-vi) | |
946 | ))) | |
947 | (call-interactively cmd))) | |
948 | ||
949 | ||
950 | ||
951 | \f | |
952 | ;; prefix argument for Vi mode | |
953 | ||
954 | ;; In Vi mode, prefix argument is a dotted pair (NUM . COM) where NUM | |
955 | ;; represents the numeric value of the prefix argument and COM represents | |
956 | ;; command prefix such as "c", "d", "m" and "y". | |
957 | ||
958 | ;; Get value part of prefix-argument ARG. | |
959 | (defsubst vip-p-val (arg) | |
960 | (cond ((null arg) 1) | |
961 | ((consp arg) | |
962 | (if (or (null (car arg)) (equal (car arg) '(nil))) | |
963 | 1 (car arg))) | |
964 | (t arg))) | |
965 | ||
966 | ;; Get raw value part of prefix-argument ARG. | |
967 | (defsubst vip-P-val (arg) | |
968 | (cond ((consp arg) (car arg)) | |
969 | (t arg))) | |
970 | ||
971 | ;; Get com part of prefix-argument ARG. | |
972 | (defsubst vip-getcom (arg) | |
973 | (cond ((null arg) nil) | |
974 | ((consp arg) (cdr arg)) | |
975 | (t nil))) | |
976 | ||
977 | ;; Get com part of prefix-argument ARG and modify it. | |
978 | (defun vip-getCom (arg) | |
979 | (let ((com (vip-getcom arg))) | |
980 | (cond ((equal com ?c) ?C) | |
981 | ((equal com ?d) ?D) | |
982 | ((equal com ?y) ?Y) | |
983 | (t com)))) | |
984 | ||
985 | ||
986 | ;; Compute numeric prefix arg value. | |
987 | ;; Invoked by EVENT. COM is the command part obtained so far. | |
988 | (defun vip-prefix-arg-value (event com) | |
989 | (let (value func) | |
990 | ;; read while number | |
991 | (while (and (vip-characterp event) (>= event ?0) (<= event ?9)) | |
992 | (setq value (+ (* (if (integerp value) value 0) 10) (- event ?0))) | |
993 | (setq event (vip-read-event-convert-to-char))) | |
994 | ||
995 | (setq prefix-arg value) | |
996 | (if com (setq prefix-arg (cons prefix-arg com))) | |
997 | (while (eq event ?U) | |
998 | (vip-describe-arg prefix-arg) | |
999 | (setq event (vip-read-event-convert-to-char))) | |
1000 | ||
1001 | (if (or com (and (not (eq vip-current-state 'vi-state)) | |
1002 | ;; make sure it is a Vi command | |
1003 | (vip-characterp event) (vip-vi-command-p event) | |
1004 | )) | |
1005 | ;; If appears to be one of the vi commands, | |
1006 | ;; then execute it with funcall and clear prefix-arg in order to not | |
1007 | ;; confuse subsequent commands | |
1008 | (progn | |
1009 | ;; last-command-char is the char we want emacs to think was typed | |
1010 | ;; last. If com is not nil, the vip-digit-argument command was called | |
1011 | ;; from within vip-prefix-arg command, such as `d', `w', etc., i.e., | |
1012 | ;; the user typed, say, d2. In this case, `com' would be `d', `w', | |
1013 | ;; etc. | |
1014 | ;; If vip-digit-argument was invoked by vip-escape-to-vi (which is | |
1015 | ;; indicated by the fact that the current state is not vi-state), | |
1016 | ;; then `event' represents the vi command to be executed (e.g., `d', | |
1017 | ;; `w', etc). Again, last-command-char must make emacs believe that | |
1018 | ;; this is the command we typed. | |
1019 | (setq last-command-char (or com event)) | |
1020 | (setq func (vip-exec-form-in-vi | |
1021 | (` (key-binding (char-to-string (, event)))))) | |
1022 | (funcall func prefix-arg) | |
1023 | (setq prefix-arg nil)) | |
1024 | ;; some other command -- let emacs do it in its own way | |
1025 | (vip-set-unread-command-events event)) | |
1026 | )) | |
1027 | ||
1028 | ||
1029 | ;; Vi operator as prefix argument." | |
1030 | (defun vip-prefix-arg-com (char value com) | |
1031 | (let ((cont t) | |
1032 | cmd-info mv-or-digit-cmd) | |
1033 | (while (and cont | |
1034 | (memq char | |
1035 | (list ?c ?d ?y ?! ?< ?> ?= ?# ?r ?R ?\" | |
1036 | vip-buffer-search-char))) | |
1037 | (if com | |
1038 | ;; this means that we already have a command character, so we | |
1039 | ;; construct a com list and exit while. however, if char is " | |
1040 | ;; it is an error. | |
1041 | (progn | |
1042 | ;; new com is (CHAR . OLDCOM) | |
1043 | (if (memq char '(?# ?\")) (error "")) | |
1044 | (setq com (cons char com)) | |
1045 | (setq cont nil)) | |
1046 | ;; If com is nil we set com as char, and read more. Again, if char | |
1047 | ;; is ", we read the name of register and store it in vip-use-register. | |
1048 | ;; if char is !, =, or #, a complete com is formed so we exit the | |
1049 | ;; while loop. | |
1050 | (cond ((memq char '(?! ?=)) | |
1051 | (setq com char) | |
1052 | (setq char (read-char)) | |
1053 | (setq cont nil)) | |
1054 | ((= char ?#) | |
1055 | ;; read a char and encode it as com | |
1056 | (setq com (+ 128 (read-char))) | |
1057 | (setq char (read-char))) | |
1058 | ((= char ?\") | |
1059 | (let ((reg (read-char))) | |
1060 | (if (vip-valid-register reg) | |
1061 | (setq vip-use-register reg) | |
1062 | (error "")) | |
1063 | (setq char (read-char)))) | |
1064 | (t | |
1065 | (setq com char) | |
1066 | (setq char (read-char)))))) | |
1067 | ||
1068 | (if (atom com) | |
1069 | ;; `com' is a single char, so we construct the command argument | |
1070 | ;; and if `char' is `?', we describe the arg; otherwise | |
1071 | ;; we prepare the command that will be executed at the end. | |
1072 | (progn | |
1073 | (setq cmd-info (cons value com)) | |
1074 | (while (= char ?U) | |
1075 | (vip-describe-arg cmd-info) | |
1076 | (setq char (read-char))) | |
1077 | ;; `char' is a movement cmd, a digit arg cmd, or a register cmd---so we | |
1078 | ;; execute it at the very end | |
1079 | (or (vip-movement-command-p char) | |
1080 | (vip-digit-command-p char) | |
1081 | (vip-regsuffix-command-p char) | |
1082 | (error "")) | |
1083 | (setq mv-or-digit-cmd | |
1084 | (vip-exec-form-in-vi | |
1085 | (` (key-binding (char-to-string (, char))))))) | |
1086 | ||
1087 | ;; as com is non-nil, this means that we have a command to execute | |
1088 | (if (memq (car com) '(?r ?R)) | |
1089 | ;; execute apropriate region command. | |
1090 | (let ((char (car com)) (com (cdr com))) | |
1091 | (setq prefix-arg (cons value com)) | |
1092 | (if (= char ?r) (vip-region prefix-arg) | |
1093 | (vip-Region prefix-arg)) | |
1094 | ;; reset prefix-arg | |
1095 | (setq prefix-arg nil)) | |
1096 | ;; otherwise, reset prefix arg and call appropriate command | |
1097 | (setq value (if (null value) 1 value)) | |
1098 | (setq prefix-arg nil) | |
1099 | (cond ((equal com '(?c . ?c)) (vip-line (cons value ?C))) | |
1100 | ((equal com '(?d . ?d)) (vip-line (cons value ?D))) | |
1101 | ((equal com '(?d . ?y)) (vip-yank-defun)) | |
1102 | ((equal com '(?y . ?y)) (vip-line (cons value ?Y))) | |
1103 | ((equal com '(?< . ?<)) (vip-line (cons value ?<))) | |
1104 | ((equal com '(?> . ?>)) (vip-line (cons value ?>))) | |
1105 | ((equal com '(?! . ?!)) (vip-line (cons value ?!))) | |
1106 | ((equal com '(?= . ?=)) (vip-line (cons value ?=))) | |
1107 | (t (error ""))))) | |
1108 | ||
1109 | (if mv-or-digit-cmd | |
1110 | (progn | |
1111 | (setq last-command-char char) | |
1112 | (setq last-command-event | |
1113 | (vip-copy-event | |
1114 | (if vip-xemacs-p (character-to-event char) char))) | |
1115 | (condition-case nil | |
1116 | (funcall mv-or-digit-cmd cmd-info) | |
1117 | (error | |
1118 | (error ""))))) | |
1119 | )) | |
1120 | ||
1121 | (defun vip-describe-arg (arg) | |
1122 | (let (val com) | |
1123 | (setq val (vip-P-val arg) | |
1124 | com (vip-getcom arg)) | |
1125 | (if (null val) | |
1126 | (if (null com) | |
1127 | (message "Value is nil, and command is nil") | |
1128 | (message "Value is nil, and command is `%c'" com)) | |
1129 | (if (null com) | |
1130 | (message "Value is `%d', and command is nil" val) | |
1131 | (message "Value is `%d', and command is `%c'" val com))))) | |
1132 | ||
1133 | (defun vip-digit-argument (arg) | |
1134 | "Begin numeric argument for the next command." | |
1135 | (interactive "P") | |
1136 | (vip-leave-region-active) | |
1137 | (vip-prefix-arg-value | |
1138 | last-command-char (if (consp arg) (cdr arg) nil))) | |
1139 | ||
1140 | (defun vip-command-argument (arg) | |
1141 | "Accept a motion command as an argument." | |
1142 | (interactive "P") | |
1143 | (let ((vip-inside-command-argument-action t)) | |
1144 | (condition-case nil | |
1145 | (vip-prefix-arg-com | |
1146 | last-command-char | |
1147 | (cond ((null arg) nil) | |
1148 | ((consp arg) (car arg)) | |
1149 | ((integerp arg) arg) | |
1150 | (t (error vip-InvalidCommandArgument))) | |
1151 | (cond ((null arg) nil) | |
1152 | ((consp arg) (cdr arg)) | |
1153 | ((integerp arg) nil) | |
1154 | (t (error vip-InvalidCommandArgument)))) | |
1155 | (quit (setq vip-use-register nil) | |
1156 | (signal 'quit nil))) | |
1157 | (vip-deactivate-mark))) | |
1158 | ||
1159 | \f | |
1160 | ;; repeat last destructive command | |
1161 | ||
1162 | ;; Append region to text in register REG. | |
1163 | ;; START and END are buffer positions indicating what to append. | |
1164 | (defsubst vip-append-to-register (reg start end) | |
1165 | (set-register reg (concat (if (stringp (get-register reg)) | |
1166 | (get-register reg) "") | |
1167 | (buffer-substring start end)))) | |
1168 | ||
1169 | ;; Saves last inserted text for possible use by vip-repeat command. | |
1170 | (defun vip-save-last-insertion (beg end) | |
1171 | (setq vip-last-insertion (buffer-substring beg end)) | |
1172 | (or (< (length vip-d-com) 5) | |
1173 | (setcar (nthcdr 4 vip-d-com) vip-last-insertion)) | |
1174 | (or (null vip-command-ring) | |
1175 | (ring-empty-p vip-command-ring) | |
1176 | (progn | |
1177 | (setcar (nthcdr 4 (vip-current-ring-item vip-command-ring)) | |
1178 | vip-last-insertion) | |
1179 | ;; del most recent elt, if identical to the second most-recent | |
1180 | (vip-cleanup-ring vip-command-ring))) | |
1181 | ) | |
1182 | ||
1183 | (defsubst vip-yank-last-insertion () | |
1184 | "Inserts the text saved by the previous vip-save-last-insertion command." | |
1185 | (condition-case nil | |
1186 | (insert vip-last-insertion) | |
1187 | (error nil))) | |
1188 | ||
1189 | ||
1190 | ;; define functions to be executed | |
1191 | ||
1192 | ;; invoked by the `C' command | |
1193 | (defun vip-exec-change (m-com com) | |
1194 | (or (and (markerp vip-com-point) (marker-position vip-com-point)) | |
1195 | (set-marker vip-com-point (point) (current-buffer))) | |
1196 | ;; handle C cmd at the eol and at eob. | |
1197 | (if (or (and (eolp) (= vip-com-point (point))) | |
1198 | (= vip-com-point (point-max))) | |
1199 | (progn | |
1200 | (insert " ")(backward-char 1))) | |
1201 | (if (= vip-com-point (point)) | |
1202 | (vip-forward-char-carefully)) | |
1203 | (if (= com ?c) | |
1204 | (vip-change vip-com-point (point)) | |
1205 | (vip-change-subr vip-com-point (point)))) | |
1206 | ||
1207 | ;; this is invoked by vip-substitute-line | |
1208 | (defun vip-exec-Change (m-com com) | |
1209 | (save-excursion | |
1210 | (set-mark vip-com-point) | |
1211 | (vip-enlarge-region (mark t) (point)) | |
1212 | (if vip-use-register | |
1213 | (progn | |
1214 | (cond ((vip-valid-register vip-use-register '(letter digit)) | |
1215 | ;;(vip-valid-register vip-use-register '(letter) | |
1216 | (copy-to-register | |
1217 | vip-use-register (mark t) (point) nil)) | |
1218 | ((vip-valid-register vip-use-register '(Letter)) | |
1219 | (vip-append-to-register | |
1220 | (downcase vip-use-register) (mark t) (point))) | |
1221 | (t (setq vip-use-register nil) | |
1222 | (error vip-InvalidRegister vip-use-register))) | |
1223 | (setq vip-use-register nil))) | |
1224 | (delete-region (mark t) (point))) | |
1225 | (open-line 1) | |
1226 | (if (= com ?C) (vip-change-mode-to-insert) (vip-yank-last-insertion))) | |
1227 | ||
1228 | (defun vip-exec-delete (m-com com) | |
1229 | (or (and (markerp vip-com-point) (marker-position vip-com-point)) | |
1230 | (set-marker vip-com-point (point) (current-buffer))) | |
1231 | (if vip-use-register | |
1232 | (progn | |
1233 | (cond ((vip-valid-register vip-use-register '(letter digit)) | |
1234 | ;;(vip-valid-register vip-use-register '(letter)) | |
1235 | (copy-to-register | |
1236 | vip-use-register vip-com-point (point) nil)) | |
1237 | ((vip-valid-register vip-use-register '(Letter)) | |
1238 | (vip-append-to-register | |
1239 | (downcase vip-use-register) vip-com-point (point))) | |
1240 | (t (setq vip-use-register nil) | |
1241 | (error vip-InvalidRegister vip-use-register))) | |
1242 | (setq vip-use-register nil))) | |
1243 | (setq last-command | |
1244 | (if (eq last-command 'd-command) 'kill-region nil)) | |
1245 | (kill-region vip-com-point (point)) | |
1246 | (setq this-command 'd-command) | |
1247 | (if vip-ex-style-motion | |
1248 | (if (and (eolp) (not (bolp))) (backward-char 1)))) | |
1249 | ||
1250 | (defun vip-exec-Delete (m-com com) | |
1251 | (save-excursion | |
1252 | (set-mark vip-com-point) | |
1253 | (vip-enlarge-region (mark t) (point)) | |
1254 | (if vip-use-register | |
1255 | (progn | |
1256 | (cond ((vip-valid-register vip-use-register '(letter digit)) | |
1257 | ;;(vip-valid-register vip-use-register '(letter)) | |
1258 | (copy-to-register | |
1259 | vip-use-register (mark t) (point) nil)) | |
1260 | ((vip-valid-register vip-use-register '(Letter)) | |
1261 | (vip-append-to-register | |
1262 | (downcase vip-use-register) (mark t) (point))) | |
1263 | (t (setq vip-use-register nil) | |
1264 | (error vip-InvalidRegister vip-use-register))) | |
1265 | (setq vip-use-register nil))) | |
1266 | (setq last-command | |
1267 | (if (eq last-command 'D-command) 'kill-region nil)) | |
1268 | (kill-region (mark t) (point)) | |
1269 | (if (eq m-com 'vip-line) (setq this-command 'D-command))) | |
1270 | (back-to-indentation)) | |
1271 | ||
1272 | (defun vip-exec-yank (m-com com) | |
1273 | (or (and (markerp vip-com-point) (marker-position vip-com-point)) | |
1274 | (set-marker vip-com-point (point) (current-buffer))) | |
1275 | (if vip-use-register | |
1276 | (progn | |
1277 | (cond ((vip-valid-register vip-use-register '(letter digit)) | |
1278 | ;; (vip-valid-register vip-use-register '(letter)) | |
1279 | (copy-to-register | |
1280 | vip-use-register vip-com-point (point) nil)) | |
1281 | ((vip-valid-register vip-use-register '(Letter)) | |
1282 | (vip-append-to-register | |
1283 | (downcase vip-use-register) vip-com-point (point))) | |
1284 | (t (setq vip-use-register nil) | |
1285 | (error vip-InvalidRegister vip-use-register))) | |
1286 | (setq vip-use-register nil))) | |
1287 | (setq last-command nil) | |
1288 | (copy-region-as-kill vip-com-point (point)) | |
1289 | (goto-char vip-com-point)) | |
1290 | ||
1291 | (defun vip-exec-Yank (m-com com) | |
1292 | (save-excursion | |
1293 | (set-mark vip-com-point) | |
1294 | (vip-enlarge-region (mark t) (point)) | |
1295 | (if vip-use-register | |
1296 | (progn | |
1297 | (cond ((vip-valid-register vip-use-register '(letter digit)) | |
1298 | (copy-to-register | |
1299 | vip-use-register (mark t) (point) nil)) | |
1300 | ((vip-valid-register vip-use-register '(Letter)) | |
1301 | (vip-append-to-register | |
1302 | (downcase vip-use-register) (mark t) (point))) | |
1303 | (t (setq vip-use-register nil) | |
1304 | (error vip-InvalidRegister vip-use-register))) | |
1305 | (setq vip-use-register nil))) | |
1306 | (setq last-command nil) | |
1307 | (copy-region-as-kill (mark t) (point))) | |
1308 | (vip-deactivate-mark) | |
1309 | (goto-char vip-com-point)) | |
1310 | ||
1311 | (defun vip-exec-bang (m-com com) | |
1312 | (save-excursion | |
1313 | (set-mark vip-com-point) | |
1314 | (vip-enlarge-region (mark t) (point)) | |
1315 | (shell-command-on-region | |
1316 | (mark t) (point) | |
1317 | (if (= com ?!) | |
1318 | (setq vip-last-shell-com | |
1319 | (vip-read-string-with-history | |
1320 | "!" | |
1321 | nil | |
1322 | 'vip-shell-history | |
1323 | (car vip-shell-history) | |
1324 | )) | |
1325 | vip-last-shell-com) | |
1326 | t))) | |
1327 | ||
1328 | (defun vip-exec-equals (m-com com) | |
1329 | (save-excursion | |
1330 | (set-mark vip-com-point) | |
1331 | (vip-enlarge-region (mark t) (point)) | |
1332 | (if (> (mark t) (point)) (exchange-point-and-mark)) | |
1333 | (indent-region (mark t) (point) nil))) | |
1334 | ||
1335 | (defun vip-exec-shift (m-com com) | |
1336 | (save-excursion | |
1337 | (set-mark vip-com-point) | |
1338 | (vip-enlarge-region (mark t) (point)) | |
1339 | (if (> (mark t) (point)) (exchange-point-and-mark)) | |
1340 | (indent-rigidly (mark t) (point) | |
1341 | (if (= com ?>) | |
1342 | vip-shift-width | |
1343 | (- vip-shift-width)))) | |
1344 | ;; return point to where it was before shift | |
1345 | (goto-char vip-com-point)) | |
1346 | ||
1347 | ;; this is needed because some commands fake com by setting it to ?r, which | |
1348 | ;; denotes repeated insert command. | |
1349 | (defsubst vip-exec-dummy (m-com com) | |
1350 | nil) | |
1351 | ||
1352 | (defun vip-exec-buffer-search (m-com com) | |
1353 | (setq vip-s-string (buffer-substring (point) vip-com-point)) | |
1354 | (setq vip-s-forward t) | |
1355 | (setq vip-search-history (cons vip-s-string vip-search-history)) | |
1356 | (vip-search vip-s-string vip-s-forward 1)) | |
1357 | ||
1358 | (defvar vip-exec-array (make-vector 128 nil)) | |
1359 | ||
1360 | ;; Using a dispatch array allows adding functions like buffer search | |
1361 | ;; without affecting other functions. Buffer search can now be bound | |
1362 | ;; to any character. | |
1363 | ||
1364 | (aset vip-exec-array ?c 'vip-exec-change) | |
1365 | (aset vip-exec-array ?C 'vip-exec-Change) | |
1366 | (aset vip-exec-array ?d 'vip-exec-delete) | |
1367 | (aset vip-exec-array ?D 'vip-exec-Delete) | |
1368 | (aset vip-exec-array ?y 'vip-exec-yank) | |
1369 | (aset vip-exec-array ?Y 'vip-exec-Yank) | |
1370 | (aset vip-exec-array ?r 'vip-exec-dummy) | |
1371 | (aset vip-exec-array ?! 'vip-exec-bang) | |
1372 | (aset vip-exec-array ?< 'vip-exec-shift) | |
1373 | (aset vip-exec-array ?> 'vip-exec-shift) | |
1374 | (aset vip-exec-array ?= 'vip-exec-equals) | |
1375 | ||
1376 | ||
1377 | ||
1378 | ;; This function is called by various movement commands to execute a | |
1379 | ;; destructive command on the region specified by the movement command. For | |
1380 | ;; instance, if the user types cw, then the command vip-forward-word will | |
1381 | ;; call vip-execute-com to execute vip-exec-change, which eventually will | |
1382 | ;; call vip-change to invoke the replace mode on the region. | |
1383 | ;; | |
1384 | ;; The list (M-COM VAL COM REG INSETED-TEXT COMMAND-KEYS) is set to | |
1385 | ;; vip-d-com for later use by vip-repeat. | |
1386 | (defun vip-execute-com (m-com val com) | |
1387 | (let ((reg vip-use-register)) | |
1388 | ;; this is the special command `#' | |
1389 | (if (> com 128) | |
1390 | (vip-special-prefix-com (- com 128)) | |
1391 | (let ((fn (aref vip-exec-array (if (< com 0) (- com) com)))) | |
1392 | (if (null fn) | |
1393 | (error "%c: %s" com vip-InvalidViCommand) | |
1394 | (funcall fn m-com com)))) | |
1395 | (if (vip-dotable-command-p com) | |
1396 | (vip-set-destructive-command | |
1397 | (list m-com val | |
1398 | (if (memq com (list ?c ?C ?!)) (- com) com) | |
1399 | reg nil nil))) | |
1400 | )) | |
1401 | ||
1402 | ||
1403 | (defun vip-repeat (arg) | |
1404 | "Re-execute last destructive command. | |
1405 | Use the info in vip-d-com, which has the form | |
1406 | \(com val ch reg inserted-text command-keys\), | |
1407 | where `com' is the command to be re-executed, `val' is the | |
1408 | argument to `com', `ch' is a flag for repeat, and `reg' is optional; | |
1409 | if it exists, it is the name of the register for `com'. | |
1410 | If the prefix argument, ARG, is non-nil, it is used instead of `val'." | |
1411 | (interactive "P") | |
1412 | (let ((save-point (point)) ; save point before repeating prev cmd | |
1413 | ;; Pass along that we are repeating a destructive command | |
1414 | ;; This tells vip-set-destructive-command not to update | |
1415 | ;; vip-command-ring | |
1416 | (vip-intermediate-command 'vip-repeat)) | |
1417 | (if (eq last-command 'vip-undo) | |
1418 | ;; if the last command was vip-undo, then undo-more | |
1419 | (vip-undo-more) | |
1420 | ;; otherwise execute the command stored in vip-d-com. if arg is non-nil | |
1421 | ;; its prefix value is used as new prefix value for the command. | |
1422 | (let ((m-com (car vip-d-com)) | |
1423 | (val (vip-P-val arg)) | |
1424 | (com (nth 2 vip-d-com)) | |
1425 | (reg (nth 3 vip-d-com))) | |
1426 | (if (null val) (setq val (nth 1 vip-d-com))) | |
1427 | (if (null m-com) (error "No previous command to repeat.")) | |
1428 | (setq vip-use-register reg) | |
1429 | (if (nth 4 vip-d-com) ; text inserted by command | |
1430 | (setq vip-last-insertion (nth 4 vip-d-com) | |
1431 | vip-d-char (nth 4 vip-d-com))) | |
1432 | (funcall m-com (cons val com)) | |
1433 | (if (and vip-keep-point-on-repeat (< save-point (point))) | |
1434 | (goto-char save-point)) ; go back to before repeat. | |
1435 | (if (and (eolp) (not (bolp))) | |
1436 | (backward-char 1)) | |
1437 | )) | |
1438 | (if vip-undo-needs-adjustment (vip-adjust-undo)) ; take care of undo | |
1439 | ;; If the prev cmd was rotating the command ring, this means that `.' has | |
1440 | ;; just executed a command from that ring. So, push it on the ring again. | |
1441 | ;; If we are just executing previous command , then don't push vip-d-com | |
1442 | ;; because vip-d-com is not fully constructed in this case (its keys and | |
1443 | ;; the inserted text may be nil). Besides, in this case, the command | |
1444 | ;; executed by `.' is already on the ring. | |
1445 | (if (eq last-command 'vip-display-current-destructive-command) | |
1446 | (vip-push-onto-ring vip-d-com 'vip-command-ring)) | |
1447 | (vip-deactivate-mark) | |
1448 | )) | |
1449 | ||
1450 | (defun vip-repeat-from-history () | |
1451 | "Repeat a destructive command from history. | |
1452 | Doesn't change vip-command-ring in any way, so `.' will work as before | |
1453 | executing this command. | |
1454 | This command is supposed to be bound to a two-character Vi macro where | |
1455 | the second character is a digit 0 to 9. The digit indicates which | |
1456 | history command to execute. `<char>0' is equivalent to `.', `<char>1' | |
1457 | invokes the command before that, etc." | |
1458 | (interactive) | |
1459 | (let* ((vip-intermediate-command 'repeating-display-destructive-command) | |
1460 | (idx (cond (vip-this-kbd-macro | |
1461 | (string-to-number | |
1462 | (symbol-name (elt vip-this-kbd-macro 1)))) | |
1463 | (t 0))) | |
1464 | (num idx) | |
1465 | (vip-d-com vip-d-com)) | |
1466 | ||
1467 | (or (and (numberp num) (<= 0 num) (<= num 9)) | |
1468 | (progn | |
1469 | (setq idx 0 | |
1470 | num 0) | |
1471 | (message | |
1472 | "`vip-repeat-from-history' must be invoked as a Vi macro bound to `<key><digit>'"))) | |
1473 | (while (< 0 num) | |
1474 | (setq vip-d-com (vip-special-ring-rotate1 vip-command-ring -1)) | |
1475 | (setq num (1- num))) | |
1476 | (vip-repeat nil) | |
1477 | (while (> idx num) | |
1478 | (vip-special-ring-rotate1 vip-command-ring 1) | |
1479 | (setq num (1+ num))) | |
1480 | )) | |
1481 | ||
1482 | ||
1483 | ;; The hash-command. It is invoked interactively by the key sequence #<char>. | |
1484 | ;; The chars that can follow `#' are determined by vip-hash-command-p | |
1485 | (defun vip-special-prefix-com (char) | |
1486 | (cond ((= char ?c) | |
1487 | (downcase-region (min vip-com-point (point)) | |
1488 | (max vip-com-point (point)))) | |
1489 | ((= char ?C) | |
1490 | (upcase-region (min vip-com-point (point)) | |
1491 | (max vip-com-point (point)))) | |
1492 | ((= char ?g) | |
1493 | (push-mark vip-com-point t) | |
1494 | (vip-global-execute)) | |
1495 | ((= char ?q) | |
1496 | (push-mark vip-com-point t) | |
1497 | (vip-quote-region)) | |
1498 | ((= char ?s) (funcall vip-spell-function vip-com-point (point))) | |
1499 | (t (error "#%c: %s" char vip-InvalidViCommand)))) | |
1500 | ||
1501 | \f | |
1502 | ;; undoing | |
1503 | ||
1504 | (defun vip-undo () | |
1505 | "Undo previous change." | |
1506 | (interactive) | |
1507 | (message "undo!") | |
1508 | (let ((modified (buffer-modified-p)) | |
1509 | (before-undo-pt (point-marker)) | |
1510 | (after-change-functions after-change-functions) | |
1511 | undo-beg-posn undo-end-posn) | |
1512 | ||
1513 | ;; no need to remove this hook, since this var has scope inside a let. | |
1514 | (add-hook 'after-change-functions | |
1515 | '(lambda (beg end len) | |
1516 | (setq undo-beg-posn beg | |
1517 | undo-end-posn (or end beg)))) | |
1518 | ||
1519 | (undo-start) | |
1520 | (undo-more 2) | |
1521 | (setq undo-beg-posn (or undo-beg-posn before-undo-pt) | |
1522 | undo-end-posn (or undo-end-posn undo-beg-posn)) | |
1523 | ||
1524 | (goto-char undo-beg-posn) | |
1525 | (sit-for 0) | |
1526 | (if (and vip-keep-point-on-undo | |
1527 | (pos-visible-in-window-p before-undo-pt)) | |
1528 | (progn | |
1529 | (push-mark (point-marker) t) | |
1530 | (vip-sit-for-short 300) | |
1531 | (goto-char undo-end-posn) | |
1532 | (vip-sit-for-short 300) | |
1533 | (if (and (> (abs (- undo-beg-posn before-undo-pt)) 1) | |
1534 | (> (abs (- undo-end-posn before-undo-pt)) 1)) | |
1535 | (goto-char before-undo-pt) | |
1536 | (goto-char undo-beg-posn))) | |
1537 | (push-mark before-undo-pt t)) | |
1538 | (if (and (eolp) (not (bolp))) (backward-char 1)) | |
1539 | (if (not modified) (set-buffer-modified-p t))) | |
1540 | (setq this-command 'vip-undo)) | |
1541 | ||
1542 | ;; Continue undoing previous changes. | |
1543 | (defun vip-undo-more () | |
1544 | (message "undo more!") | |
1545 | (condition-case nil | |
1546 | (undo-more 1) | |
1547 | (error (beep) | |
1548 | (message "No further undo information in this buffer"))) | |
1549 | (if (and (eolp) (not (bolp))) (backward-char 1)) | |
1550 | (setq this-command 'vip-undo)) | |
1551 | ||
1552 | ;; The following two functions are used to set up undo properly. | |
1553 | ;; In VI, unlike Emacs, if you open a line, say, and add a bunch of lines, | |
1554 | ;; they are undone all at once. | |
1555 | (defun vip-adjust-undo () | |
1556 | (let ((inhibit-quit t) | |
1557 | tmp tmp2) | |
1558 | (setq vip-undo-needs-adjustment nil) | |
1559 | (if (listp buffer-undo-list) | |
1560 | (if (setq tmp (memq vip-buffer-undo-list-mark buffer-undo-list)) | |
1561 | (progn | |
1562 | (setq tmp2 (cdr tmp)) ; the part after mark | |
1563 | ||
1564 | ;; cut tail from buffer-undo-list temporarily by direct | |
1565 | ;; manipulation with pointers in buffer-undo-list | |
1566 | (setcdr tmp nil) | |
1567 | ||
1568 | (setq buffer-undo-list (delq nil buffer-undo-list)) | |
1569 | (setq buffer-undo-list | |
1570 | (delq vip-buffer-undo-list-mark buffer-undo-list)) | |
1571 | ;; restore tail of buffer-undo-list | |
1572 | (setq buffer-undo-list (nconc buffer-undo-list tmp2))) | |
1573 | (setq buffer-undo-list (delq nil buffer-undo-list)))))) | |
1574 | ||
1575 | ||
1576 | (defun vip-set-complex-command-for-undo () | |
1577 | (if (listp buffer-undo-list) | |
1578 | (if (not vip-undo-needs-adjustment) | |
1579 | (let ((inhibit-quit t)) | |
1580 | (setq buffer-undo-list | |
1581 | (cons vip-buffer-undo-list-mark buffer-undo-list)) | |
1582 | (setq vip-undo-needs-adjustment t))))) | |
1583 | ||
1584 | ||
1585 | ||
1586 | ||
1587 | (defun vip-display-current-destructive-command () | |
1588 | (let ((text (nth 4 vip-d-com)) | |
1589 | (keys (nth 5 vip-d-com)) | |
1590 | (max-text-len 30)) | |
1591 | ||
1592 | (setq this-command 'vip-display-current-destructive-command) | |
1593 | ||
1594 | (message " `.' runs %s%s" | |
1595 | (concat "`" (vip-array-to-string keys) "'") | |
1596 | (vip-abbreviate-string text max-text-len | |
1597 | " inserting `" "'" " .......")) | |
1598 | )) | |
1599 | ||
1600 | ||
1601 | ;; don't change vip-d-com if it was vip-repeat command invoked with `.' | |
1602 | ;; or in some other way (non-interactively). | |
1603 | (defun vip-set-destructive-command (list) | |
1604 | (or (eq vip-intermediate-command 'vip-repeat) | |
1605 | (progn | |
1606 | (setq vip-d-com list) | |
1607 | (setcar (nthcdr 5 vip-d-com) | |
1608 | (vip-array-to-string (this-command-keys))) | |
1609 | (vip-push-onto-ring vip-d-com 'vip-command-ring)))) | |
1610 | ||
1611 | (defun vip-prev-destructive-command (next) | |
1612 | "Find previous destructive command in the history of destructive commands. | |
1613 | With prefix argument, find next destructive command." | |
1614 | (interactive "P") | |
1615 | (let (cmd vip-intermediate-command) | |
1616 | (if (eq last-command 'vip-display-current-destructive-command) | |
1617 | ;; repeated search through command history | |
1618 | (setq vip-intermediate-command 'repeating-display-destructive-command) | |
1619 | ;; first search through command history--set temp ring | |
1620 | (setq vip-temp-command-ring (copy-list vip-command-ring))) | |
1621 | (setq cmd (if next | |
1622 | (vip-special-ring-rotate1 vip-temp-command-ring 1) | |
1623 | (vip-special-ring-rotate1 vip-temp-command-ring -1))) | |
1624 | (if (null cmd) | |
1625 | () | |
1626 | (setq vip-d-com cmd)) | |
1627 | (vip-display-current-destructive-command))) | |
1628 | ||
1629 | (defun vip-next-destructive-command () | |
1630 | "Find next destructive command in the history of destructive commands." | |
1631 | (interactive) | |
1632 | (vip-prev-destructive-command 'next)) | |
1633 | ||
1634 | (defun vip-insert-prev-from-insertion-ring (arg) | |
1635 | "Cycle through insertion ring in the direction of older insertions. | |
1636 | Undoes previous insertion and inserts new. | |
1637 | With prefix argument, cycles in the direction of newer elements. | |
1638 | In minibuffer, this command executes whatever the invocation key is bound | |
1639 | to in the global map, instead of cycling through the insertion ring." | |
1640 | (interactive "P") | |
1641 | (let (vip-intermediate-command) | |
1642 | (if (eq last-command 'vip-insert-from-insertion-ring) | |
1643 | (progn ; repeated search through insertion history | |
1644 | (setq vip-intermediate-command 'repeating-insertion-from-ring) | |
1645 | (if (eq vip-current-state 'replace-state) | |
1646 | (undo 1) | |
1647 | (if vip-last-inserted-string-from-insertion-ring | |
1648 | (backward-delete-char | |
1649 | (length vip-last-inserted-string-from-insertion-ring)))) | |
1650 | ) | |
1651 | ;;first search through insertion history | |
1652 | (setq vip-temp-insertion-ring (copy-list vip-insertion-ring))) | |
1653 | (setq this-command 'vip-insert-from-insertion-ring) | |
1654 | ;; so that things will be undone properly | |
1655 | (setq buffer-undo-list (cons nil buffer-undo-list)) | |
1656 | (setq vip-last-inserted-string-from-insertion-ring | |
1657 | (vip-special-ring-rotate1 vip-temp-insertion-ring (if arg 1 -1))) | |
1658 | ||
1659 | ;; this change of vip-intermediate-command must come after | |
1660 | ;; vip-special-ring-rotate1, so that the ring will rotate, but before the | |
1661 | ;; insertion. | |
1662 | (setq vip-intermediate-command nil) | |
1663 | (if vip-last-inserted-string-from-insertion-ring | |
1664 | (insert vip-last-inserted-string-from-insertion-ring)) | |
1665 | )) | |
1666 | ||
1667 | (defun vip-insert-next-from-insertion-ring () | |
1668 | "Cycle through insertion ring in the direction of older insertions. | |
1669 | Undo previous insertion and inserts new." | |
1670 | (interactive) | |
1671 | (vip-insert-prev-from-insertion-ring 'next)) | |
1672 | ||
1673 | \f | |
1674 | ;; some region utilities | |
1675 | ||
1676 | ;; If at the last line of buffer, add \\n before eob, if newline is missing. | |
1677 | (defun vip-add-newline-at-eob-if-necessary () | |
1678 | (save-excursion | |
1679 | (end-of-line) | |
1680 | ;; make sure all lines end with newline, unless in the minibuffer or | |
1681 | ;; when requested otherwise (require-final-newline is nil) | |
1682 | (if (and (eobp) | |
1683 | (not (bolp)) | |
1684 | require-final-newline | |
1685 | (not (vip-is-in-minibuffer)) | |
1686 | (not buffer-read-only)) | |
1687 | (insert "\n")))) | |
1688 | ||
1689 | (defun vip-yank-defun () | |
1690 | (mark-defun) | |
1691 | (copy-region-as-kill (point) (mark t))) | |
1692 | ||
1693 | ;; Enlarge region between BEG and END. | |
1694 | (defun vip-enlarge-region (beg end) | |
1695 | (or beg (setq beg end)) ; if beg is nil, set to end | |
1696 | (or end (setq end beg)) ; if end is nil, set to beg | |
1697 | ||
1698 | (if (< beg end) | |
1699 | (progn (goto-char beg) (set-mark end)) | |
1700 | (goto-char end) | |
1701 | (set-mark beg)) | |
1702 | (beginning-of-line) | |
1703 | (exchange-point-and-mark) | |
1704 | (if (or (not (eobp)) (not (bolp))) (forward-line 1)) | |
1705 | (if (not (eobp)) (beginning-of-line)) | |
1706 | (if (> beg end) (exchange-point-and-mark))) | |
1707 | ||
1708 | ||
1709 | ;; Quote region by each line with a user supplied string. | |
1710 | (defun vip-quote-region () | |
1711 | (setq vip-quote-string | |
1712 | (vip-read-string-with-history | |
1713 | "Quote string: " | |
1714 | nil | |
1715 | 'vip-quote-region-history | |
1716 | vip-quote-string)) | |
1717 | (vip-enlarge-region (point) (mark t)) | |
1718 | (if (> (point) (mark t)) (exchange-point-and-mark)) | |
1719 | (insert vip-quote-string) | |
1720 | (beginning-of-line) | |
1721 | (forward-line 1) | |
1722 | (while (and (< (point) (mark t)) (bolp)) | |
1723 | (insert vip-quote-string) | |
1724 | (beginning-of-line) | |
1725 | (forward-line 1))) | |
1726 | ||
1727 | ;; Tells whether BEG is on the same line as END. | |
1728 | ;; If one of the args is nil, it'll return nil. | |
1729 | (defun vip-same-line (beg end) | |
1730 | (let ((selective-display nil) | |
1731 | (incr 0) | |
1732 | temp) | |
1733 | (if (and beg end (> beg end)) | |
1734 | (setq temp beg | |
1735 | beg end | |
1736 | end temp)) | |
1737 | (if (and beg end) | |
1738 | (cond ((or (> beg (point-max)) (> end (point-max))) ; out of range | |
1739 | nil) | |
1740 | (t | |
1741 | ;; This 'if' is needed because Emacs treats the next empty line | |
1742 | ;; as part of the previous line. | |
1743 | (if (= (vip-line-pos 'start) end) | |
1744 | (setq incr 1)) | |
1745 | (<= (+ incr (count-lines beg end)) 1)))) | |
1746 | )) | |
1747 | ||
1748 | ||
1749 | ;; Check if the string ends with a newline. | |
1750 | (defun vip-end-with-a-newline-p (string) | |
1751 | (or (string= string "") | |
1752 | (= (vip-seq-last-elt string) ?\n))) | |
1753 | ||
1754 | (defun vip-tmp-insert-at-eob (msg) | |
1755 | (let ((savemax (point-max))) | |
1756 | (goto-char savemax) | |
1757 | (insert msg) | |
1758 | (sit-for 2) | |
1759 | (goto-char savemax) (delete-region (point) (point-max)) | |
1760 | )) | |
1761 | ||
1762 | ||
1763 | \f | |
1764 | ;;; Minibuffer business | |
1765 | ||
1766 | (defsubst vip-set-minibuffer-style () | |
1767 | (add-hook 'minibuffer-setup-hook 'vip-minibuffer-setup-sentinel)) | |
1768 | ||
1769 | ||
1770 | (defun vip-minibuffer-setup-sentinel () | |
1771 | (let ((hook (if vip-vi-style-in-minibuffer | |
1772 | 'vip-change-state-to-insert | |
1773 | 'vip-change-state-to-emacs))) | |
1774 | (funcall hook) | |
1775 | )) | |
1776 | ||
1777 | ;; Interpret last event in the local map | |
1778 | (defun vip-exit-minibuffer () | |
1779 | (interactive) | |
1780 | (let (command) | |
1781 | (setq command (local-key-binding (char-to-string last-command-char))) | |
1782 | (if command | |
1783 | (command-execute command) | |
1784 | (exit-minibuffer)))) | |
1785 | ||
1786 | \f | |
1787 | ;;; Reading string with history | |
1788 | ||
1789 | (defun vip-read-string-with-history (prompt &optional initial | |
1790 | history-var default keymap) | |
1791 | ;; Read string, prompting with PROMPT and inserting the INITIAL | |
1792 | ;; value. Uses HISTORY-VAR. DEFAULT is the default value to accept if the | |
1793 | ;; input is an empty string. Use KEYMAP, if given, or the | |
1794 | ;; minibuffer-local-map. | |
1795 | ;; Default value is displayed until the user types something in the | |
1796 | ;; minibuffer. | |
1797 | (let ((minibuffer-setup-hook | |
1798 | '(lambda () | |
1799 | (if (stringp initial) | |
1800 | (progn | |
1801 | ;; don't wait if we have unread events or in kbd macro | |
1802 | (or unread-command-events | |
1803 | executing-kbd-macro | |
1804 | (sit-for 840)) | |
1805 | (erase-buffer) | |
1806 | (insert initial))) | |
1807 | (vip-minibuffer-setup-sentinel))) | |
1808 | (val "") | |
1809 | (padding "") | |
1810 | temp-msg) | |
1811 | ||
1812 | (setq keymap (or keymap minibuffer-local-map) | |
1813 | initial (or initial "") | |
1814 | temp-msg (if default | |
1815 | (format "(default: %s) " default) | |
1816 | "")) | |
1817 | ||
1818 | (setq vip-incomplete-ex-cmd nil) | |
1819 | (setq val (read-from-minibuffer prompt | |
1820 | (concat temp-msg initial val padding) | |
1821 | keymap nil history-var)) | |
1822 | (setq minibuffer-setup-hook nil | |
1823 | padding (vip-array-to-string (this-command-keys)) | |
1824 | temp-msg "") | |
1825 | ;; the following tries to be smart about what to put in history | |
1826 | (if (not (string= val (car (eval history-var)))) | |
1827 | (set history-var (cons val (eval history-var)))) | |
1828 | (if (or (string= (nth 0 (eval history-var)) (nth 1 (eval history-var))) | |
1829 | (string= (nth 0 (eval history-var)) "")) | |
1830 | (set history-var (cdr (eval history-var)))) | |
1831 | ;; If the user enters nothing but the prev cmd wasn't vip-ex, | |
1832 | ;; vip-command-argument, or `! shell-command', this probably means | |
1833 | ;; that the user typed something then erased. Return "" in this case, not | |
1834 | ;; the default---the default is too confusing in this case. | |
1835 | (cond ((and (string= val "") | |
1836 | (not (string= prompt "!")) ; was a `! shell-command' | |
1837 | (not (memq last-command | |
1838 | '(vip-ex | |
1839 | vip-command-argument | |
1840 | t) | |
1841 | ))) | |
1842 | "") | |
1843 | ((string= val "") (or default "")) | |
1844 | (t val)) | |
1845 | )) | |
1846 | ||
1847 | ||
1848 | \f | |
1849 | ;; insertion commands | |
1850 | ||
1851 | ;; Called when state changes from Insert Vi command mode. | |
1852 | ;; Repeats the insertion command if Insert state was entered with prefix | |
1853 | ;; argument > 1. | |
1854 | (defun vip-repeat-insert-command () | |
1855 | (let ((i-com (car vip-d-com)) | |
1856 | (val (nth 1 vip-d-com)) | |
1857 | (char (nth 2 vip-d-com))) | |
1858 | (if (and val (> val 1)) ; first check that val is non-nil | |
1859 | (progn | |
1860 | (setq vip-d-com (list i-com (1- val) ?r nil nil nil)) | |
1861 | (vip-repeat nil) | |
1862 | (setq vip-d-com (list i-com val char nil nil nil)) | |
1863 | )))) | |
1864 | ||
1865 | (defun vip-insert (arg) | |
1866 | "Insert before point." | |
1867 | (interactive "P") | |
1868 | (vip-set-complex-command-for-undo) | |
1869 | (let ((val (vip-p-val arg)) | |
1870 | (com (vip-getcom arg))) | |
1871 | (vip-set-destructive-command (list 'vip-insert val ?r nil nil nil)) | |
1872 | (if com | |
1873 | (vip-loop val (vip-yank-last-insertion)) | |
1874 | (vip-change-state-to-insert)))) | |
1875 | ||
1876 | (defun vip-append (arg) | |
1877 | "Append after point." | |
1878 | (interactive "P") | |
1879 | (vip-set-complex-command-for-undo) | |
1880 | (let ((val (vip-p-val arg)) | |
1881 | (com (vip-getcom arg))) | |
1882 | (vip-set-destructive-command (list 'vip-append val ?r nil nil nil)) | |
1883 | (if (not (eolp)) (forward-char)) | |
1884 | (if (equal com ?r) | |
1885 | (vip-loop val (vip-yank-last-insertion)) | |
1886 | (vip-change-state-to-insert)))) | |
1887 | ||
1888 | (defun vip-Append (arg) | |
1889 | "Append at end of line." | |
1890 | (interactive "P") | |
1891 | (vip-set-complex-command-for-undo) | |
1892 | (let ((val (vip-p-val arg)) | |
1893 | (com (vip-getcom arg))) | |
1894 | (vip-set-destructive-command (list 'vip-Append val ?r nil nil nil)) | |
1895 | (end-of-line) | |
1896 | (if (equal com ?r) | |
1897 | (vip-loop val (vip-yank-last-insertion)) | |
1898 | (vip-change-state-to-insert)))) | |
1899 | ||
1900 | (defun vip-Insert (arg) | |
1901 | "Insert before first non-white." | |
1902 | (interactive "P") | |
1903 | (vip-set-complex-command-for-undo) | |
1904 | (let ((val (vip-p-val arg)) | |
1905 | (com (vip-getcom arg))) | |
1906 | (vip-set-destructive-command (list 'vip-Insert val ?r nil nil nil)) | |
1907 | (back-to-indentation) | |
1908 | (if (equal com ?r) | |
1909 | (vip-loop val (vip-yank-last-insertion)) | |
1910 | (vip-change-state-to-insert)))) | |
1911 | ||
1912 | (defun vip-open-line (arg) | |
1913 | "Open line below." | |
1914 | (interactive "P") | |
1915 | (vip-set-complex-command-for-undo) | |
1916 | (let ((val (vip-p-val arg)) | |
1917 | (com (vip-getcom arg))) | |
1918 | (vip-set-destructive-command (list 'vip-open-line val ?r nil nil nil)) | |
1919 | (let ((col (current-indentation))) | |
1920 | (if (equal com ?r) | |
1921 | (vip-loop val | |
1922 | (progn | |
1923 | (end-of-line) | |
1924 | (newline 1) | |
1925 | (if vip-auto-indent | |
1926 | (progn | |
1927 | (setq vip-cted t) | |
1928 | (if vip-electric-mode | |
1929 | (indent-according-to-mode) | |
1930 | (indent-to col)) | |
1931 | )) | |
1932 | (vip-yank-last-insertion))) | |
1933 | (end-of-line) | |
1934 | (newline 1) | |
1935 | (if vip-auto-indent | |
1936 | (progn | |
1937 | (setq vip-cted t) | |
1938 | (if vip-electric-mode | |
1939 | (indent-according-to-mode) | |
1940 | (indent-to col)))) | |
1941 | (vip-change-state-to-insert))))) | |
1942 | ||
1943 | (defun vip-Open-line (arg) | |
1944 | "Open line above." | |
1945 | (interactive "P") | |
1946 | (vip-set-complex-command-for-undo) | |
1947 | (let ((val (vip-p-val arg)) | |
1948 | (com (vip-getcom arg))) | |
1949 | (vip-set-destructive-command (list 'vip-Open-line val ?r nil nil nil)) | |
1950 | (let ((col (current-indentation))) | |
1951 | (if (equal com ?r) | |
1952 | (vip-loop val | |
1953 | (progn | |
1954 | (beginning-of-line) | |
1955 | (open-line 1) | |
1956 | (if vip-auto-indent | |
1957 | (progn | |
1958 | (setq vip-cted t) | |
1959 | (if vip-electric-mode | |
1960 | (indent-according-to-mode) | |
1961 | (indent-to col)) | |
1962 | )) | |
1963 | (vip-yank-last-insertion))) | |
1964 | (beginning-of-line) | |
1965 | (open-line 1) | |
1966 | (if vip-auto-indent | |
1967 | (progn | |
1968 | (setq vip-cted t) | |
1969 | (if vip-electric-mode | |
1970 | (indent-according-to-mode) | |
1971 | (indent-to col)) | |
1972 | )) | |
1973 | (vip-change-state-to-insert))))) | |
1974 | ||
1975 | (defun vip-open-line-at-point (arg) | |
1976 | "Open line at point." | |
1977 | (interactive "P") | |
1978 | (vip-set-complex-command-for-undo) | |
1979 | (let ((val (vip-p-val arg)) | |
1980 | (com (vip-getcom arg))) | |
1981 | (vip-set-destructive-command | |
1982 | (list 'vip-open-line-at-point val ?r nil nil nil)) | |
1983 | (if (equal com ?r) | |
1984 | (vip-loop val | |
1985 | (progn | |
1986 | (open-line 1) | |
1987 | (vip-yank-last-insertion))) | |
1988 | (open-line 1) | |
1989 | (vip-change-state-to-insert)))) | |
1990 | ||
1991 | (defun vip-substitute (arg) | |
1992 | "Substitute characters." | |
1993 | (interactive "P") | |
1994 | (let ((val (vip-p-val arg)) | |
1995 | (com (vip-getcom arg))) | |
1996 | (push-mark nil t) | |
1997 | (forward-char val) | |
1998 | (if (equal com ?r) | |
1999 | (vip-change-subr (mark t) (point)) | |
2000 | (vip-change (mark t) (point))) | |
2001 | (vip-set-destructive-command (list 'vip-substitute val ?r nil nil nil)) | |
2002 | )) | |
2003 | ||
2004 | (defun vip-substitute-line (arg) | |
2005 | "Substitute lines." | |
2006 | (interactive "p") | |
2007 | (vip-set-complex-command-for-undo) | |
2008 | (vip-line (cons arg ?C))) | |
2009 | ||
2010 | ;; Prepare for replace | |
2011 | (defun vip-start-replace () | |
2012 | (setq vip-began-as-replace t | |
2013 | vip-sitting-in-replace t | |
2014 | vip-replace-chars-to-delete 0 | |
2015 | vip-replace-chars-deleted 0) | |
2016 | (vip-add-hook 'vip-after-change-functions 'vip-replace-mode-spy-after t) | |
2017 | (vip-add-hook 'vip-before-change-functions 'vip-replace-mode-spy-before t) | |
2018 | ;; this will get added repeatedly, but no harm | |
2019 | (add-hook 'after-change-functions 'vip-after-change-sentinel t) | |
2020 | (add-hook 'before-change-functions 'vip-before-change-sentinel t) | |
2021 | (vip-move-marker-locally 'vip-last-posn-in-replace-region | |
2022 | (vip-replace-start)) | |
2023 | (vip-add-hook | |
2024 | 'vip-post-command-hooks 'vip-replace-state-post-command-sentinel t) | |
2025 | (vip-add-hook | |
2026 | 'vip-pre-command-hooks 'vip-replace-state-pre-command-sentinel t) | |
2027 | ;; guard against a smartie who switched from R-replace to normal replace | |
2028 | (vip-remove-hook | |
2029 | 'vip-post-command-hooks 'vip-R-state-post-command-sentinel) | |
2030 | (if overwrite-mode (overwrite-mode nil)) | |
2031 | ) | |
2032 | ||
2033 | ||
2034 | ;; checks how many chars were deleted by the last change | |
2035 | (defun vip-replace-mode-spy-before (beg end) | |
2036 | (setq vip-replace-chars-deleted | |
2037 | (- end beg | |
2038 | (max 0 (- end (vip-replace-end))) | |
2039 | (max 0 (- (vip-replace-start) beg)) | |
2040 | ))) | |
2041 | ||
2042 | ;; Invoked as an after-change-function to set up parameters of the last change | |
2043 | (defun vip-replace-mode-spy-after (beg end length) | |
2044 | (if (memq vip-intermediate-command '(repeating-insertion-from-ring)) | |
2045 | (progn | |
2046 | (setq vip-replace-chars-to-delete 0) | |
2047 | (vip-move-marker-locally | |
2048 | 'vip-last-posn-in-replace-region (point))) | |
2049 | ||
2050 | (let (beg-col end-col real-end chars-to-delete) | |
2051 | (setq real-end (min end (vip-replace-end))) | |
2052 | (save-excursion | |
2053 | (goto-char beg) | |
2054 | (setq beg-col (current-column)) | |
2055 | (goto-char real-end) | |
2056 | (setq end-col (current-column))) | |
2057 | ||
2058 | ;; If beg of change is outside the replacement region, then don't | |
2059 | ;; delete anything in the repl region (set chars-to-delete to 0). | |
2060 | ;; | |
2061 | ;; This works fine except that we have to take special care of | |
2062 | ;; dabbrev-expand. The problem stems from new-dabbrev.el, which | |
2063 | ;; sometimes simply shifts the repl region rightwards, without | |
2064 | ;; deleting an equal amount of characters. | |
2065 | ;; | |
2066 | ;; The reason why new-dabbrev.el causes this are this: | |
2067 | ;; if one dinamically completes a partial word that starts before the | |
2068 | ;; replacement region (but ends inside) then new-dabbrev.el first | |
2069 | ;; moves cursor backwards, to the beginning of the word to be | |
2070 | ;; completed (say, pt A). Then it inserts the | |
2071 | ;; completed word and then deletes the old, incomplete part. | |
2072 | ;; Since the complete word is inserted at position before the repl | |
2073 | ;; region, the next If-statement would have set chars-to-delete to 0 | |
2074 | ;; unless we check for the current command, which must be | |
2075 | ;; dabbrev-expand. | |
2076 | ;; | |
2077 | ;; In fact, it might be also useful to have overlays for insert | |
2078 | ;; regions as well, since this will let us capture the situation when | |
2079 | ;; dabbrev-expand goes back past the insertion point to find the | |
2080 | ;; beginning of the word to be expanded. | |
2081 | (if (or (and (<= (vip-replace-start) beg) | |
2082 | (<= beg (vip-replace-end))) | |
2083 | (and (= length 0) (eq this-command 'dabbrev-expand))) | |
2084 | (setq chars-to-delete | |
2085 | (max (- end-col beg-col) (- real-end beg) 0)) | |
2086 | (setq chars-to-delete 0)) | |
2087 | ||
2088 | ;; if beg = last change position, it means that we are within the | |
2089 | ;; same command that does multiple changes. Moreover, it means | |
2090 | ;; that we have two subsequent changes (insert/delete) that | |
2091 | ;; complement each other. | |
2092 | (if (= beg (marker-position vip-last-posn-in-replace-region)) | |
2093 | (setq vip-replace-chars-to-delete | |
2094 | (- (+ chars-to-delete vip-replace-chars-to-delete) | |
2095 | vip-replace-chars-deleted)) | |
2096 | (setq vip-replace-chars-to-delete chars-to-delete)) | |
2097 | ||
2098 | (vip-move-marker-locally | |
2099 | 'vip-last-posn-in-replace-region | |
2100 | (max (if (> end (vip-replace-end)) (vip-replace-start) end) | |
2101 | (or (marker-position vip-last-posn-in-replace-region) | |
2102 | (vip-replace-start)) | |
2103 | )) | |
2104 | ||
2105 | (setq vip-replace-chars-to-delete | |
2106 | (max 0 | |
2107 | (min vip-replace-chars-to-delete | |
2108 | (- (vip-replace-end) vip-last-posn-in-replace-region) | |
2109 | (- (vip-line-pos 'end) vip-last-posn-in-replace-region) | |
2110 | ))) | |
2111 | ))) | |
2112 | ||
2113 | ||
2114 | ;; Delete stuff between posn and the end of vip-replace-overlay-marker, if | |
2115 | ;; posn is within the overlay. | |
2116 | (defun vip-finish-change (posn) | |
2117 | (vip-remove-hook 'vip-after-change-functions 'vip-replace-mode-spy-after) | |
2118 | (vip-remove-hook 'vip-before-change-functions 'vip-replace-mode-spy-before) | |
2119 | (vip-remove-hook 'vip-post-command-hooks | |
2120 | 'vip-replace-state-post-command-sentinel) | |
2121 | (vip-remove-hook | |
2122 | 'vip-pre-command-hooks 'vip-replace-state-pre-command-sentinel) | |
2123 | (vip-restore-cursor-color-after-replace) | |
2124 | (setq vip-sitting-in-replace nil) ; just in case we'll need to know it | |
2125 | (save-excursion | |
2126 | (if (and | |
2127 | vip-replace-overlay | |
2128 | (>= posn (vip-replace-start)) | |
2129 | (< posn (vip-replace-end))) | |
2130 | (delete-region posn (vip-replace-end))) | |
2131 | ) | |
2132 | ||
2133 | (if (eq vip-current-state 'replace-state) | |
2134 | (vip-downgrade-to-insert)) | |
2135 | ;; replace mode ended => nullify vip-last-posn-in-replace-region | |
2136 | (vip-move-marker-locally 'vip-last-posn-in-replace-region nil) | |
2137 | (vip-hide-replace-overlay) | |
2138 | (vip-refresh-mode-line) | |
2139 | (vip-put-string-on-kill-ring vip-last-replace-region) | |
2140 | ) | |
2141 | ||
2142 | ;; Make STRING be the first element of the kill ring. | |
2143 | (defun vip-put-string-on-kill-ring (string) | |
2144 | (setq kill-ring (cons string kill-ring)) | |
2145 | (if (> (length kill-ring) kill-ring-max) | |
2146 | (setcdr (nthcdr (1- kill-ring-max) kill-ring) nil)) | |
2147 | (setq kill-ring-yank-pointer kill-ring)) | |
2148 | ||
2149 | (defun vip-finish-R-mode () | |
2150 | (vip-remove-hook 'vip-post-command-hooks 'vip-R-state-post-command-sentinel) | |
2151 | (vip-remove-hook | |
2152 | 'vip-pre-command-hooks 'vip-replace-state-pre-command-sentinel) | |
2153 | (vip-downgrade-to-insert)) | |
2154 | ||
2155 | (defun vip-start-R-mode () | |
2156 | ;; Leave arg as 1, not t: XEmacs insists that it must be a pos number | |
2157 | (overwrite-mode 1) | |
2158 | (vip-add-hook | |
2159 | 'vip-post-command-hooks 'vip-R-state-post-command-sentinel t) | |
2160 | (vip-add-hook | |
2161 | 'vip-pre-command-hooks 'vip-replace-state-pre-command-sentinel t) | |
2162 | ;; guard against a smartie who switched from R-replace to normal replace | |
2163 | (vip-remove-hook | |
2164 | 'vip-post-command-hooks 'vip-replace-state-post-command-sentinel) | |
2165 | ) | |
2166 | ||
2167 | ||
2168 | ||
2169 | (defun vip-replace-state-exit-cmd () | |
2170 | "Binding for keys that cause Replace state to switch to Vi or to Insert. | |
2171 | These keys are ESC, RET, and LineFeed" | |
2172 | (interactive) | |
2173 | (if overwrite-mode ;; If you are in replace mode invoked via 'R' | |
2174 | (vip-finish-R-mode) | |
2175 | (vip-finish-change vip-last-posn-in-replace-region)) | |
2176 | (let (com) | |
2177 | (if (eq this-command 'vip-intercept-ESC-key) | |
2178 | (setq com 'vip-exit-insert-state) | |
2179 | (vip-set-unread-command-events last-input-char) | |
2180 | (setq com (key-binding (read-key-sequence nil)))) | |
2181 | ||
2182 | (condition-case conds | |
2183 | (command-execute com) | |
2184 | (error | |
2185 | (vip-message-conditions conds))) | |
2186 | ) | |
2187 | (vip-hide-replace-overlay)) | |
2188 | ||
2189 | (defun vip-replace-state-carriage-return () | |
2190 | "Implements carriage return in Viper replace state." | |
2191 | (interactive) | |
2192 | ;; If Emacs start supporting overlay maps, as it currently supports | |
2193 | ;; text-property maps, we could do away with vip-replace-minor-mode and | |
2194 | ;; just have keymap attached to replace overlay. Then the "if part" of this | |
2195 | ;; statement can be deleted. | |
2196 | (if (or (< (point) (vip-replace-start)) | |
2197 | (> (point) (vip-replace-end))) | |
2198 | (let (vip-replace-minor-mode com) | |
2199 | (vip-set-unread-command-events last-input-char) | |
2200 | (setq com (key-binding (read-key-sequence nil))) | |
2201 | (condition-case conds | |
2202 | (command-execute com) | |
2203 | (error | |
2204 | (vip-message-conditions conds)))) | |
2205 | (if (not vip-allow-multiline-replace-regions) | |
2206 | (vip-replace-state-exit-cmd) | |
2207 | (if (vip-same-line (point) (vip-replace-end)) | |
2208 | (vip-replace-state-exit-cmd) | |
2209 | (vip-kill-line nil) | |
2210 | (vip-next-line-at-bol nil))))) | |
2211 | ||
2212 | ||
2213 | ;; This is the function bound to 'R'---unlimited replace. | |
2214 | ;; Similar to Emacs's own overwrite-mode. | |
2215 | (defun vip-overwrite (arg) | |
2216 | "Begin overwrite mode." | |
2217 | (interactive "P") | |
2218 | (let ((val (vip-p-val arg)) | |
2219 | (com (vip-getcom arg)) (len)) | |
2220 | (vip-set-destructive-command (list 'vip-overwrite val ?r nil nil nil)) | |
2221 | (if com | |
2222 | (progn | |
2223 | ;; Viper saves inserted text in vip-last-insertion | |
2224 | (setq len (length vip-last-insertion)) | |
2225 | (delete-char len) | |
2226 | (vip-loop val (vip-yank-last-insertion))) | |
2227 | (setq last-command 'vip-overwrite) | |
2228 | (vip-set-complex-command-for-undo) | |
2229 | (vip-set-replace-overlay (point) (vip-line-pos 'end)) | |
2230 | (vip-change-state-to-replace) | |
2231 | ))) | |
2232 | ||
2233 | \f | |
2234 | ;; line commands | |
2235 | ||
2236 | (defun vip-line (arg) | |
2237 | (let ((val (car arg)) | |
2238 | (com (cdr arg))) | |
2239 | (vip-move-marker-locally 'vip-com-point (point)) | |
2240 | (if (not (eobp)) | |
2241 | (vip-next-line-carefully (1- val))) | |
2242 | ;; this ensures that dd, cc, D, yy will do the right thing on the last | |
2243 | ;; line of buffer when this line has no \n. | |
2244 | (vip-add-newline-at-eob-if-necessary) | |
2245 | (vip-execute-com 'vip-line val com)) | |
2246 | (if (and (eobp) (not (bobp))) (forward-line -1)) | |
2247 | ) | |
2248 | ||
2249 | (defun vip-yank-line (arg) | |
2250 | "Yank ARG lines (in Vi's sense)." | |
2251 | (interactive "P") | |
2252 | (let ((val (vip-p-val arg))) | |
2253 | (vip-line (cons val ?Y)))) | |
2254 | ||
2255 | \f | |
2256 | ;; region commands | |
2257 | ||
2258 | (defun vip-region (arg) | |
2259 | "Execute command on a region." | |
2260 | (interactive "P") | |
2261 | (let ((val (vip-P-val arg)) | |
2262 | (com (vip-getcom arg))) | |
2263 | (vip-move-marker-locally 'vip-com-point (point)) | |
2264 | (exchange-point-and-mark) | |
2265 | (vip-execute-com 'vip-region val com))) | |
2266 | ||
2267 | (defun vip-Region (arg) | |
2268 | "Execute command on a Region." | |
2269 | (interactive "P") | |
2270 | (let ((val (vip-P-val arg)) | |
2271 | (com (vip-getCom arg))) | |
2272 | (vip-move-marker-locally 'vip-com-point (point)) | |
2273 | (exchange-point-and-mark) | |
2274 | (vip-execute-com 'vip-Region val com))) | |
2275 | ||
2276 | (defun vip-replace-char (arg) | |
2277 | "Replace the following ARG chars by the character read." | |
2278 | (interactive "P") | |
2279 | (if (and (eolp) (bolp)) (error "No character to replace here")) | |
2280 | (let ((val (vip-p-val arg)) | |
2281 | (com (vip-getcom arg))) | |
2282 | (vip-replace-char-subr com val) | |
2283 | (if (and (eolp) (not (bolp))) (forward-char 1)) | |
2284 | (vip-set-destructive-command | |
2285 | (list 'vip-replace-char val ?r nil vip-d-char nil)) | |
2286 | )) | |
2287 | ||
2288 | (defun vip-replace-char-subr (com arg) | |
2289 | (let ((take-care-of-iso-accents | |
2290 | (and (boundp 'iso-accents-mode) vip-automatic-iso-accents)) | |
2291 | char) | |
2292 | (setq char (if (equal com ?r) | |
2293 | vip-d-char | |
2294 | (read-char))) | |
2295 | (if (and take-care-of-iso-accents (memq char '(?' ?\" ?^ ?~))) | |
2296 | ;; get European characters | |
2297 | (progn | |
2298 | (iso-accents-mode 1) | |
2299 | (vip-set-unread-command-events char) | |
2300 | (setq char (aref (read-key-sequence nil) 0)) | |
2301 | (iso-accents-mode -1))) | |
2302 | (delete-char arg t) | |
2303 | (setq vip-d-char char) | |
2304 | (vip-loop (if (> arg 0) arg (- arg)) | |
2305 | (if (eq char ?\C-m) (insert "\n") (insert char))) | |
2306 | (backward-char arg))) | |
2307 | ||
2308 | \f | |
2309 | ;; basic cursor movement. j, k, l, h commands. | |
2310 | ||
2311 | (defun vip-forward-char (arg) | |
2312 | "Move point right ARG characters (left if ARG negative). | |
2313 | On reaching end of line, stop and signal error." | |
2314 | (interactive "P") | |
2315 | (vip-leave-region-active) | |
2316 | (let ((val (vip-p-val arg)) | |
2317 | (com (vip-getcom arg))) | |
2318 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2319 | (if vip-ex-style-motion | |
2320 | (progn | |
2321 | ;; the boundary condition check gets weird here because | |
2322 | ;; forward-char may be the parameter of a delete, and 'dl' works | |
2323 | ;; just like 'x' for the last char on a line, so we have to allow | |
2324 | ;; the forward motion before the 'vip-execute-com', but, of | |
2325 | ;; course, 'dl' doesn't work on an empty line, so we have to | |
2326 | ;; catch that condition before 'vip-execute-com' | |
2327 | (if (and (eolp) (bolp)) (error "") (forward-char val)) | |
2328 | (if com (vip-execute-com 'vip-forward-char val com)) | |
2329 | (if (eolp) (progn (backward-char 1) (error "")))) | |
2330 | (forward-char val) | |
2331 | (if com (vip-execute-com 'vip-forward-char val com))))) | |
2332 | ||
2333 | (defun vip-backward-char (arg) | |
2334 | "Move point left ARG characters (right if ARG negative). | |
2335 | On reaching beginning of line, stop and signal error." | |
2336 | (interactive "P") | |
2337 | (vip-leave-region-active) | |
2338 | (let ((val (vip-p-val arg)) | |
2339 | (com (vip-getcom arg))) | |
2340 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2341 | (if vip-ex-style-motion | |
2342 | (progn | |
2343 | (if (bolp) (error "") (backward-char val)) | |
2344 | (if com (vip-execute-com 'vip-backward-char val com))) | |
2345 | (backward-char val) | |
2346 | (if com (vip-execute-com 'vip-backward-char val com))))) | |
2347 | ||
2348 | ;; Like forward-char, but doesn't move at end of buffer. | |
2349 | (defun vip-forward-char-carefully (&optional arg) | |
2350 | (setq arg (or arg 1)) | |
2351 | (if (>= (point-max) (+ (point) arg)) | |
2352 | (forward-char arg) | |
2353 | (goto-char (point-max)))) | |
2354 | ||
2355 | ;; Like backward-char, but doesn't move at end of buffer. | |
2356 | (defun vip-backward-char-carefully (&optional arg) | |
2357 | (setq arg (or arg 1)) | |
2358 | (if (<= (point-min) (- (point) arg)) | |
2359 | (backward-char arg) | |
2360 | (goto-char (point-min)))) | |
2361 | ||
2362 | (defun vip-next-line-carefully (arg) | |
2363 | (condition-case nil | |
2364 | (next-line arg) | |
2365 | (error nil))) | |
2366 | ||
2367 | ||
2368 | \f | |
2369 | ;;; Word command | |
2370 | ||
2371 | ;; Words are formed from alpha's and nonalphas - <sp>,\t\n are separators | |
2372 | ;; for word movement. When executed with a destructive command, \n is | |
2373 | ;; usually left untouched for the last word. | |
2374 | ;; Viper uses syntax table to determine what is a word and what is a | |
2375 | ;; separator. However, \n is always a separator. Also, if vip-syntax-preference | |
2376 | ;; is 'vi, then `_' is part of the word. | |
2377 | ||
2378 | ;; skip only one \n | |
2379 | (defun vip-skip-separators (forward) | |
2380 | (if forward | |
2381 | (progn | |
2382 | (vip-skip-all-separators-forward 'within-line) | |
2383 | (if (looking-at "\n") | |
2384 | (progn | |
2385 | (forward-char) | |
2386 | (vip-skip-all-separators-forward 'within-line)))) | |
2387 | (vip-skip-all-separators-backward 'within-line) | |
2388 | (backward-char) | |
2389 | (if (looking-at "\n") | |
2390 | (vip-skip-all-separators-backward 'within-line) | |
2391 | (forward-char)))) | |
2392 | ||
2393 | (defun vip-forward-word-kernel (val) | |
2394 | (while (> val 0) | |
2395 | (cond ((vip-looking-at-alpha) | |
2396 | (vip-skip-alpha-forward "_") | |
2397 | (vip-skip-separators t)) | |
2398 | ((vip-looking-at-separator) | |
2399 | (vip-skip-separators t)) | |
2400 | ((not (vip-looking-at-alphasep)) | |
2401 | (vip-skip-nonalphasep-forward) | |
2402 | (vip-skip-separators t))) | |
2403 | (setq val (1- val)))) | |
2404 | ||
2405 | ;; first search backward for pat. Then skip chars backwards using aux-pat | |
2406 | (defun vip-fwd-skip (pat aux-pat lim) | |
2407 | (if (and (save-excursion | |
2408 | (re-search-backward pat lim t)) | |
2409 | (= (point) (match-end 0))) | |
2410 | (goto-char (match-beginning 0))) | |
2411 | (skip-chars-backward aux-pat lim) | |
2412 | (if (= (point) lim) | |
2413 | (vip-forward-char-carefully)) | |
2414 | ) | |
2415 | ||
2416 | ||
2417 | (defun vip-forward-word (arg) | |
2418 | "Forward word." | |
2419 | (interactive "P") | |
2420 | (vip-leave-region-active) | |
2421 | (let ((val (vip-p-val arg)) | |
2422 | (com (vip-getcom arg))) | |
2423 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2424 | (vip-forward-word-kernel val) | |
2425 | (if com (progn | |
2426 | (cond ((memq com (list ?c (- ?c))) | |
2427 | (vip-fwd-skip "\n[ \t]*" " \t" vip-com-point)) | |
2428 | ;; Yank words including the whitespace, but not newline | |
2429 | ((memq com (list ?y (- ?y))) | |
2430 | (vip-fwd-skip "\n[ \t]*" "" vip-com-point)) | |
2431 | ((vip-dotable-command-p com) | |
2432 | (vip-fwd-skip "\n[ \t]*" "" vip-com-point))) | |
2433 | (vip-execute-com 'vip-forward-word val com))))) | |
2434 | ||
2435 | ||
2436 | (defun vip-forward-Word (arg) | |
2437 | "Forward word delimited by white characters." | |
2438 | (interactive "P") | |
2439 | (vip-leave-region-active) | |
2440 | (let ((val (vip-p-val arg)) | |
2441 | (com (vip-getcom arg))) | |
2442 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2443 | (vip-loop val | |
2444 | (progn | |
2445 | (vip-skip-nonseparators 'forward) | |
2446 | (vip-skip-separators t))) | |
2447 | (if com (progn | |
2448 | (cond ((memq com (list ?c (- ?c))) | |
2449 | (vip-fwd-skip "\n[ \t]*" " \t" vip-com-point)) | |
2450 | ;; Yank words including the whitespace, but not newline | |
2451 | ((memq com (list ?y (- ?y))) | |
2452 | (vip-fwd-skip "\n[ \t]*" "" vip-com-point)) | |
2453 | ((vip-dotable-command-p com) | |
2454 | (vip-fwd-skip "\n[ \t]*" "" vip-com-point))) | |
2455 | (vip-execute-com 'vip-forward-Word val com))))) | |
2456 | ||
2457 | ||
2458 | ;; this is a bit different from Vi, but Vi's end of word | |
2459 | ;; makes no sense whatsoever | |
2460 | (defun vip-end-of-word-kernel () | |
2461 | (if (vip-end-of-word-p) (forward-char)) | |
2462 | (if (vip-looking-at-separator) | |
2463 | (vip-skip-all-separators-forward)) | |
2464 | ||
2465 | (cond ((vip-looking-at-alpha) (vip-skip-alpha-forward "_")) | |
2466 | ((not (vip-looking-at-alphasep)) (vip-skip-nonalphasep-forward))) | |
2467 | (vip-backward-char-carefully)) | |
2468 | ||
2469 | (defun vip-end-of-word-p () | |
2470 | (or (eobp) | |
2471 | (save-excursion | |
2472 | (cond ((vip-looking-at-alpha) | |
2473 | (forward-char) | |
2474 | (not (vip-looking-at-alpha))) | |
2475 | ((not (vip-looking-at-alphasep)) | |
2476 | (forward-char) | |
2477 | (vip-looking-at-alphasep)))))) | |
2478 | ||
2479 | ||
2480 | (defun vip-end-of-word (arg &optional careful) | |
2481 | "Move point to end of current word." | |
2482 | (interactive "P") | |
2483 | (vip-leave-region-active) | |
2484 | (let ((val (vip-p-val arg)) | |
2485 | (com (vip-getcom arg))) | |
2486 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2487 | (vip-loop val (vip-end-of-word-kernel)) | |
2488 | (if com | |
2489 | (progn | |
2490 | (forward-char) | |
2491 | (vip-execute-com 'vip-end-of-word val com))))) | |
2492 | ||
2493 | (defun vip-end-of-Word (arg) | |
2494 | "Forward to end of word delimited by white character." | |
2495 | (interactive "P") | |
2496 | (vip-leave-region-active) | |
2497 | (let ((val (vip-p-val arg)) | |
2498 | (com (vip-getcom arg))) | |
2499 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2500 | (vip-loop val | |
2501 | (progn | |
2502 | (vip-end-of-word-kernel) | |
2503 | (vip-skip-nonseparators 'forward) | |
2504 | (backward-char))) | |
2505 | (if com | |
2506 | (progn | |
2507 | (forward-char) | |
2508 | (vip-execute-com 'vip-end-of-Word val com))))) | |
2509 | ||
2510 | (defun vip-backward-word-kernel (val) | |
2511 | (while (> val 0) | |
2512 | (backward-char) | |
2513 | (cond ((vip-looking-at-alpha) | |
2514 | (vip-skip-alpha-backward "_")) | |
2515 | ((vip-looking-at-separator) | |
2516 | (forward-char) | |
2517 | (vip-skip-separators nil) | |
2518 | (backward-char) | |
2519 | (cond ((vip-looking-at-alpha) | |
2520 | (vip-skip-alpha-backward "_")) | |
2521 | ((not (vip-looking-at-alphasep)) | |
2522 | (vip-skip-nonalphasep-backward)) | |
2523 | (t (forward-char)))) | |
2524 | ((not (vip-looking-at-alphasep)) | |
2525 | (vip-skip-nonalphasep-backward))) | |
2526 | (setq val (1- val)))) | |
2527 | ||
2528 | (defun vip-backward-word (arg) | |
2529 | "Backward word." | |
2530 | (interactive "P") | |
2531 | (vip-leave-region-active) | |
2532 | (let ((val (vip-p-val arg)) | |
2533 | (com (vip-getcom arg))) | |
2534 | (if com | |
2535 | (let (i) | |
2536 | (if (setq i (save-excursion (backward-char) (looking-at "\n"))) | |
2537 | (backward-char)) | |
2538 | (vip-move-marker-locally 'vip-com-point (point)) | |
2539 | (if i (forward-char)))) | |
2540 | (vip-backward-word-kernel val) | |
2541 | (if com (vip-execute-com 'vip-backward-word val com)))) | |
2542 | ||
2543 | (defun vip-backward-Word (arg) | |
2544 | "Backward word delimited by white character." | |
2545 | (interactive "P") | |
2546 | (vip-leave-region-active) | |
2547 | (let ((val (vip-p-val arg)) | |
2548 | (com (vip-getcom arg))) | |
2549 | (if com | |
2550 | (let (i) | |
2551 | (if (setq i (save-excursion (backward-char) (looking-at "\n"))) | |
2552 | (backward-char)) | |
2553 | (vip-move-marker-locally 'vip-com-point (point)) | |
2554 | (if i (forward-char)))) | |
2555 | (vip-loop val | |
2556 | (progn | |
2557 | (vip-skip-separators nil) | |
2558 | (vip-skip-nonseparators 'backward))) | |
2559 | (if com (vip-execute-com 'vip-backward-Word val com)))) | |
2560 | ||
2561 | ||
2562 | \f | |
2563 | ;; line commands | |
2564 | ||
2565 | (defun vip-beginning-of-line (arg) | |
2566 | "Go to beginning of line." | |
2567 | (interactive "P") | |
2568 | (vip-leave-region-active) | |
2569 | (let ((val (vip-p-val arg)) | |
2570 | (com (vip-getcom arg))) | |
2571 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2572 | (beginning-of-line val) | |
2573 | (if com (vip-execute-com 'vip-beginning-of-line val com)))) | |
2574 | ||
2575 | (defun vip-bol-and-skip-white (arg) | |
2576 | "Beginning of line at first non-white character." | |
2577 | (interactive "P") | |
2578 | (vip-leave-region-active) | |
2579 | (let ((val (vip-p-val arg)) | |
2580 | (com (vip-getcom arg))) | |
2581 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2582 | (forward-to-indentation (1- val)) | |
2583 | (if com (vip-execute-com 'vip-bol-and-skip-white val com)))) | |
2584 | ||
2585 | (defun vip-goto-eol (arg) | |
2586 | "Go to end of line." | |
2587 | (interactive "P") | |
2588 | (vip-leave-region-active) | |
2589 | (let ((val (vip-p-val arg)) | |
2590 | (com (vip-getcom arg))) | |
2591 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2592 | (end-of-line val) | |
2593 | (if com (vip-execute-com 'vip-goto-eol val com)) | |
2594 | (if vip-ex-style-motion | |
2595 | (if (and (eolp) (not (bolp)) | |
2596 | ;; a fix for vip-change-to-eol | |
2597 | (not (equal vip-current-state 'insert-state))) | |
2598 | (backward-char 1) | |
2599 | )))) | |
2600 | ||
2601 | ||
2602 | (defun vip-goto-col (arg) | |
2603 | "Go to ARG's column." | |
2604 | (interactive "P") | |
2605 | (vip-leave-region-active) | |
2606 | (let ((val (vip-p-val arg)) | |
2607 | (com (vip-getcom arg)) | |
2608 | line-len) | |
2609 | (setq line-len (- (vip-line-pos 'end) (vip-line-pos 'start))) | |
2610 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2611 | (beginning-of-line) | |
2612 | (forward-char (1- (min line-len val))) | |
2613 | (while (> (current-column) (1- val)) | |
2614 | (backward-char 1)) | |
2615 | (if com (vip-execute-com 'vip-goto-col val com)) | |
2616 | (save-excursion | |
2617 | (end-of-line) | |
2618 | (if (> val (current-column)) (error ""))) | |
2619 | )) | |
2620 | ||
2621 | ||
2622 | (defun vip-next-line (arg) | |
2623 | "Go to next line." | |
2624 | (interactive "P") | |
2625 | (vip-leave-region-active) | |
2626 | (let ((val (vip-p-val arg)) | |
2627 | (com (vip-getCom arg))) | |
2628 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2629 | (next-line val) | |
2630 | (if vip-ex-style-motion | |
2631 | (if (and (eolp) (not (bolp))) (backward-char 1))) | |
2632 | (setq this-command 'next-line) | |
2633 | (if com (vip-execute-com 'vip-next-line val com)))) | |
2634 | ||
2635 | (defun vip-next-line-at-bol (arg) | |
2636 | "Next line at beginning of line." | |
2637 | (interactive "P") | |
2638 | (vip-leave-region-active) | |
2639 | (save-excursion | |
2640 | (end-of-line) | |
2641 | (if (eobp) (error "Last line in buffer"))) | |
2642 | (let ((val (vip-p-val arg)) | |
2643 | (com (vip-getCom arg))) | |
2644 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2645 | (forward-line val) | |
2646 | (back-to-indentation) | |
2647 | (if com (vip-execute-com 'vip-next-line-at-bol val com)))) | |
2648 | ||
2649 | (defun vip-previous-line (arg) | |
2650 | "Go to previous line." | |
2651 | (interactive "P") | |
2652 | (vip-leave-region-active) | |
2653 | (let ((val (vip-p-val arg)) | |
2654 | (com (vip-getCom arg))) | |
2655 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2656 | (previous-line val) | |
2657 | (if vip-ex-style-motion | |
2658 | (if (and (eolp) (not (bolp))) (backward-char 1))) | |
2659 | (setq this-command 'previous-line) | |
2660 | (if com (vip-execute-com 'vip-previous-line val com)))) | |
2661 | ||
2662 | ||
2663 | (defun vip-previous-line-at-bol (arg) | |
2664 | "Previous line at beginning of line." | |
2665 | (interactive "P") | |
2666 | (vip-leave-region-active) | |
2667 | (save-excursion | |
2668 | (beginning-of-line) | |
2669 | (if (bobp) (error "First line in buffer"))) | |
2670 | (let ((val (vip-p-val arg)) | |
2671 | (com (vip-getCom arg))) | |
2672 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2673 | (forward-line (- val)) | |
2674 | (back-to-indentation) | |
2675 | (if com (vip-execute-com 'vip-previous-line val com)))) | |
2676 | ||
2677 | (defun vip-change-to-eol (arg) | |
2678 | "Change to end of line." | |
2679 | (interactive "P") | |
2680 | (vip-goto-eol (cons arg ?c))) | |
2681 | ||
2682 | (defun vip-kill-line (arg) | |
2683 | "Delete line." | |
2684 | (interactive "P") | |
2685 | (vip-goto-eol (cons arg ?d))) | |
2686 | ||
2687 | (defun vip-erase-line (arg) | |
2688 | "Erase line." | |
2689 | (interactive "P") | |
2690 | (vip-beginning-of-line (cons arg ?d))) | |
2691 | ||
2692 | \f | |
2693 | ;;; Moving around | |
2694 | ||
2695 | (defun vip-goto-line (arg) | |
2696 | "Go to ARG's line. Without ARG go to end of buffer." | |
2697 | (interactive "P") | |
2698 | (let ((val (vip-P-val arg)) | |
2699 | (com (vip-getCom arg))) | |
2700 | (vip-move-marker-locally 'vip-com-point (point)) | |
2701 | (vip-deactivate-mark) | |
2702 | (push-mark nil t) | |
2703 | (if (null val) | |
2704 | (goto-char (point-max)) | |
2705 | (goto-char (point-min)) | |
2706 | (forward-line (1- val))) | |
2707 | ||
2708 | ;; positioning is done twice: before and after command execution | |
2709 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
2710 | (back-to-indentation) | |
2711 | ||
2712 | (if com (vip-execute-com 'vip-goto-line val com)) | |
2713 | ||
2714 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
2715 | (back-to-indentation) | |
2716 | )) | |
2717 | ||
2718 | ;; Find ARG's occurrence of CHAR on the current line. | |
2719 | ;; If FORWARD then search is forward, otherwise backward. OFFSET is used to | |
2720 | ;; adjust point after search. | |
2721 | (defun vip-find-char (arg char forward offset) | |
2722 | (or (char-or-string-p char) (error "")) | |
2723 | (let ((arg (if forward arg (- arg))) | |
2724 | (cmd (if (eq vip-intermediate-command 'vip-repeat) | |
2725 | (nth 5 vip-d-com) | |
2726 | (vip-array-to-string (this-command-keys)))) | |
2727 | point) | |
2728 | (save-excursion | |
2729 | (save-restriction | |
2730 | (if (> arg 0) | |
2731 | (narrow-to-region | |
2732 | ;; forward search begins here | |
2733 | (if (eolp) (error "Command `%s': At end of line" cmd) (point)) | |
2734 | ;; forward search ends here | |
2735 | (progn (end-of-line) (point))) | |
2736 | (narrow-to-region | |
2737 | ;; backward search begins from here | |
2738 | (if (bolp) | |
2739 | (error "Command `%s': At beginning of line" cmd) (point)) | |
2740 | ;; backward search ends here | |
2741 | (progn (beginning-of-line) (point)))) | |
2742 | ;; if arg > 0, point is forwarded before search. | |
2743 | (if (> arg 0) (goto-char (1+ (point-min))) | |
2744 | (goto-char (point-max))) | |
2745 | (if (let ((case-fold-search nil)) | |
2746 | (search-forward (char-to-string char) nil 0 arg)) | |
2747 | (setq point (point)) | |
2748 | (error "Command `%s': `%c' not found" cmd char)))) | |
2749 | (goto-char (+ point (if (> arg 0) (if offset -2 -1) (if offset 1 0)))))) | |
2750 | ||
2751 | (defun vip-find-char-forward (arg) | |
2752 | "Find char on the line. | |
2753 | If called interactively read the char to find from the terminal, and if | |
2754 | called from vip-repeat, the char last used is used. This behaviour is | |
2755 | controlled by the sign of prefix numeric value." | |
2756 | (interactive "P") | |
2757 | (let ((val (vip-p-val arg)) | |
2758 | (com (vip-getcom arg)) | |
2759 | (cmd-representation (nth 5 vip-d-com))) | |
2760 | (if (> val 0) | |
2761 | ;; this means that the function was called interactively | |
2762 | (setq vip-f-char (read-char) | |
2763 | vip-f-forward t | |
2764 | vip-f-offset nil) | |
2765 | ;; vip-repeat --- set vip-F-char from command-keys | |
2766 | (setq vip-F-char (if (stringp cmd-representation) | |
2767 | (vip-seq-last-elt cmd-representation) | |
2768 | vip-F-char) | |
2769 | vip-f-char vip-F-char) | |
2770 | (setq val (- val))) | |
2771 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2772 | (vip-find-char val (if (> (vip-p-val arg) 0) vip-f-char vip-F-char) t nil) | |
2773 | (setq val (- val)) | |
2774 | (if com | |
2775 | (progn | |
2776 | (setq vip-F-char vip-f-char) ; set new vip-F-char | |
2777 | (forward-char) | |
2778 | (vip-execute-com 'vip-find-char-forward val com))))) | |
2779 | ||
2780 | (defun vip-goto-char-forward (arg) | |
2781 | "Go up to char ARG forward on line." | |
2782 | (interactive "P") | |
2783 | (let ((val (vip-p-val arg)) | |
2784 | (com (vip-getcom arg)) | |
2785 | (cmd-representation (nth 5 vip-d-com))) | |
2786 | (if (> val 0) | |
2787 | ;; this means that the function was called interactively | |
2788 | (setq vip-f-char (read-char) | |
2789 | vip-f-forward t | |
2790 | vip-f-offset t) | |
2791 | ;; vip-repeat --- set vip-F-char from command-keys | |
2792 | (setq vip-F-char (if (stringp cmd-representation) | |
2793 | (vip-seq-last-elt cmd-representation) | |
2794 | vip-F-char) | |
2795 | vip-f-char vip-F-char) | |
2796 | (setq val (- val))) | |
2797 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2798 | (vip-find-char val (if (> (vip-p-val arg) 0) vip-f-char vip-F-char) t t) | |
2799 | (setq val (- val)) | |
2800 | (if com | |
2801 | (progn | |
2802 | (setq vip-F-char vip-f-char) ; set new vip-F-char | |
2803 | (forward-char) | |
2804 | (vip-execute-com 'vip-goto-char-forward val com))))) | |
2805 | ||
2806 | (defun vip-find-char-backward (arg) | |
2807 | "Find char ARG on line backward." | |
2808 | (interactive "P") | |
2809 | (let ((val (vip-p-val arg)) | |
2810 | (com (vip-getcom arg)) | |
2811 | (cmd-representation (nth 5 vip-d-com))) | |
2812 | (if (> val 0) | |
2813 | ;; this means that the function was called interactively | |
2814 | (setq vip-f-char (read-char) | |
2815 | vip-f-forward nil | |
2816 | vip-f-offset nil) | |
2817 | ;; vip-repeat --- set vip-F-char from command-keys | |
2818 | (setq vip-F-char (if (stringp cmd-representation) | |
2819 | (vip-seq-last-elt cmd-representation) | |
2820 | vip-F-char) | |
2821 | vip-f-char vip-F-char) | |
2822 | (setq val (- val))) | |
2823 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2824 | (vip-find-char | |
2825 | val (if (> (vip-p-val arg) 0) vip-f-char vip-F-char) nil nil) | |
2826 | (setq val (- val)) | |
2827 | (if com | |
2828 | (progn | |
2829 | (setq vip-F-char vip-f-char) ; set new vip-F-char | |
2830 | (vip-execute-com 'vip-find-char-backward val com))))) | |
2831 | ||
2832 | (defun vip-goto-char-backward (arg) | |
2833 | "Go up to char ARG backward on line." | |
2834 | (interactive "P") | |
2835 | (let ((val (vip-p-val arg)) | |
2836 | (com (vip-getcom arg)) | |
2837 | (cmd-representation (nth 5 vip-d-com))) | |
2838 | (if (> val 0) | |
2839 | ;; this means that the function was called interactively | |
2840 | (setq vip-f-char (read-char) | |
2841 | vip-f-forward nil | |
2842 | vip-f-offset t) | |
2843 | ;; vip-repeat --- set vip-F-char from command-keys | |
2844 | (setq vip-F-char (if (stringp cmd-representation) | |
2845 | (vip-seq-last-elt cmd-representation) | |
2846 | vip-F-char) | |
2847 | vip-f-char vip-F-char) | |
2848 | (setq val (- val))) | |
2849 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2850 | (vip-find-char val (if (> (vip-p-val arg) 0) vip-f-char vip-F-char) nil t) | |
2851 | (setq val (- val)) | |
2852 | (if com | |
2853 | (progn | |
2854 | (setq vip-F-char vip-f-char) ; set new vip-F-char | |
2855 | (vip-execute-com 'vip-goto-char-backward val com))))) | |
2856 | ||
2857 | (defun vip-repeat-find (arg) | |
2858 | "Repeat previous find command." | |
2859 | (interactive "P") | |
2860 | (let ((val (vip-p-val arg)) | |
2861 | (com (vip-getcom arg))) | |
2862 | (vip-deactivate-mark) | |
2863 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2864 | (vip-find-char val vip-f-char vip-f-forward vip-f-offset) | |
2865 | (if com | |
2866 | (progn | |
2867 | (if vip-f-forward (forward-char)) | |
2868 | (vip-execute-com 'vip-repeat-find val com))))) | |
2869 | ||
2870 | (defun vip-repeat-find-opposite (arg) | |
2871 | "Repeat previous find command in the opposite direction." | |
2872 | (interactive "P") | |
2873 | (let ((val (vip-p-val arg)) | |
2874 | (com (vip-getcom arg))) | |
2875 | (vip-deactivate-mark) | |
2876 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2877 | (vip-find-char val vip-f-char (not vip-f-forward) vip-f-offset) | |
2878 | (if com | |
2879 | (progn | |
2880 | (if vip-f-forward (forward-char)) | |
2881 | (vip-execute-com 'vip-repeat-find-opposite val com))))) | |
2882 | ||
2883 | \f | |
2884 | ;; window scrolling etc. | |
2885 | ||
2886 | (defun vip-other-window (arg) | |
2887 | "Switch to other window." | |
2888 | (interactive "p") | |
2889 | (other-window arg) | |
2890 | (or (not (eq vip-current-state 'emacs-state)) | |
2891 | (string= (buffer-name (current-buffer)) " *Minibuf-1*") | |
2892 | (vip-change-state-to-vi))) | |
2893 | ||
2894 | (defun vip-window-top (arg) | |
2895 | "Go to home window line." | |
2896 | (interactive "P") | |
2897 | (let ((val (vip-p-val arg)) | |
2898 | (com (vip-getCom arg))) | |
2899 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2900 | (push-mark nil t) | |
2901 | (move-to-window-line (1- val)) | |
2902 | ||
2903 | ;; positioning is done twice: before and after command execution | |
2904 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
2905 | (back-to-indentation) | |
2906 | ||
2907 | (if com (vip-execute-com 'vip-window-top val com)) | |
2908 | ||
2909 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
2910 | (back-to-indentation) | |
2911 | )) | |
2912 | ||
2913 | (defun vip-window-middle (arg) | |
2914 | "Go to middle window line." | |
2915 | (interactive "P") | |
2916 | (let ((val (vip-p-val arg)) | |
2917 | (com (vip-getCom arg)) | |
2918 | lines) | |
2919 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2920 | (push-mark nil t) | |
2921 | (if (not (pos-visible-in-window-p (point-max))) | |
2922 | (move-to-window-line (+ (/ (1- (window-height)) 2) (1- val))) | |
2923 | (setq lines (count-lines (window-start) (point-max))) | |
2924 | (move-to-window-line (+ (/ lines 2) (1- val)))) | |
2925 | ||
2926 | ;; positioning is done twice: before and after command execution | |
2927 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
2928 | (back-to-indentation) | |
2929 | ||
2930 | (if com (vip-execute-com 'vip-window-middle val com)) | |
2931 | ||
2932 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
2933 | (back-to-indentation) | |
2934 | )) | |
2935 | ||
2936 | (defun vip-window-bottom (arg) | |
2937 | "Go to last window line." | |
2938 | (interactive "P") | |
2939 | (let ((val (vip-p-val arg)) | |
2940 | (com (vip-getCom arg))) | |
2941 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
2942 | (push-mark nil t) | |
2943 | (move-to-window-line (- val)) | |
2944 | ||
2945 | ;; positioning is done twice: before and after command execution | |
2946 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
2947 | (back-to-indentation) | |
2948 | ||
2949 | (if com (vip-execute-com 'vip-window-bottom val com)) | |
2950 | ||
2951 | (if (and (eobp) (bolp) (not (bobp))) (forward-line -1)) | |
2952 | (back-to-indentation) | |
2953 | )) | |
2954 | ||
2955 | (defun vip-line-to-top (arg) | |
2956 | "Put current line on the home line." | |
2957 | (interactive "p") | |
2958 | (recenter (1- arg))) | |
2959 | ||
2960 | (defun vip-line-to-middle (arg) | |
2961 | "Put current line on the middle line." | |
2962 | (interactive "p") | |
2963 | (recenter (+ (1- arg) (/ (1- (window-height)) 2)))) | |
2964 | ||
2965 | (defun vip-line-to-bottom (arg) | |
2966 | "Put current line on the last line." | |
2967 | (interactive "p") | |
2968 | (recenter (- (window-height) (1+ arg)))) | |
2969 | ||
2970 | ;; If point is within vip-search-scroll-threshold of window top or bottom, | |
2971 | ;; scroll up or down 1/7 of window height, depending on whether we are at the | |
2972 | ;; bottom or at the top of the window. This function is called by vip-search | |
2973 | ;; (which is called from vip-search-forward/backward/next). If the value of | |
2974 | ;; vip-search-scroll-threshold is negative - don't scroll. | |
2975 | (defun vip-adjust-window () | |
2976 | (let ((win-height (if vip-emacs-p | |
2977 | (1- (window-height)) ; adjust for modeline | |
2978 | (window-displayed-height))) | |
2979 | (pt (point)) | |
2980 | at-top-p at-bottom-p | |
2981 | min-scroll direction) | |
2982 | (save-excursion | |
2983 | (move-to-window-line 0) ; top | |
2984 | (setq at-top-p | |
2985 | (<= (count-lines pt (point)) | |
2986 | vip-search-scroll-threshold)) | |
2987 | (move-to-window-line -1) ; bottom | |
2988 | (setq at-bottom-p | |
2989 | (<= (count-lines pt (point)) vip-search-scroll-threshold)) | |
2990 | ) | |
2991 | (cond (at-top-p (setq min-scroll (1- vip-search-scroll-threshold) | |
2992 | direction 1)) | |
2993 | (at-bottom-p (setq min-scroll (1+ vip-search-scroll-threshold) | |
2994 | direction -1))) | |
2995 | (if min-scroll | |
2996 | (recenter | |
2997 | (* (max min-scroll (/ win-height 7)) direction))) | |
2998 | )) | |
2999 | ||
3000 | \f | |
3001 | ;; paren match | |
3002 | ;; must correct this to only match ( to ) etc. On the other hand | |
3003 | ;; it is good that paren match gets confused, because that way you | |
3004 | ;; catch _all_ imbalances. | |
3005 | ||
3006 | (defun vip-paren-match (arg) | |
3007 | "Go to the matching parenthesis." | |
3008 | (interactive "P") | |
3009 | (vip-leave-region-active) | |
3010 | (let ((com (vip-getcom arg)) | |
3011 | (parse-sexp-ignore-comments vip-parse-sexp-ignore-comments) | |
3012 | anchor-point) | |
3013 | (if (integerp arg) | |
3014 | (if (or (> arg 99) (< arg 1)) | |
3015 | (error "Prefix must be between 1 and 99") | |
3016 | (goto-char | |
3017 | (if (> (point-max) 80000) | |
3018 | (* (/ (point-max) 100) arg) | |
3019 | (/ (* (point-max) arg) 100))) | |
3020 | (back-to-indentation)) | |
3021 | (let (beg-lim end-lim) | |
3022 | (if (and (eolp) (not (bolp))) (forward-char -1)) | |
3023 | (if (not (looking-at "[][(){}]")) | |
3024 | (setq anchor-point (point))) | |
3025 | (save-excursion | |
3026 | (beginning-of-line) | |
3027 | (setq beg-lim (point)) | |
3028 | (end-of-line) | |
3029 | (setq end-lim (point))) | |
3030 | (cond ((re-search-forward "[][(){}]" end-lim t) | |
3031 | (backward-char) ) | |
3032 | ((re-search-backward "[][(){}]" beg-lim t)) | |
3033 | (t | |
3034 | (error "No matching character on line")))) | |
3035 | (cond ((looking-at "[\(\[{]") | |
3036 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
3037 | (forward-sexp 1) | |
3038 | (if com | |
3039 | (vip-execute-com 'vip-paren-match nil com) | |
3040 | (backward-char))) | |
3041 | (anchor-point | |
3042 | (if com | |
3043 | (progn | |
3044 | (vip-move-marker-locally 'vip-com-point anchor-point) | |
3045 | (forward-char 1) | |
3046 | (vip-execute-com 'vip-paren-match nil com) | |
3047 | ))) | |
3048 | ((looking-at "[])}]") | |
3049 | (forward-char) | |
3050 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
3051 | (backward-sexp 1) | |
3052 | (if com (vip-execute-com 'vip-paren-match nil com))) | |
3053 | (t (error "")))))) | |
3054 | ||
3055 | (defun vip-toggle-parse-sexp-ignore-comments () | |
3056 | (interactive) | |
3057 | (setq vip-parse-sexp-ignore-comments (not vip-parse-sexp-ignore-comments)) | |
3058 | (prin1 (format "`%%' will %signore parentheses inside the comments" | |
3059 | (if vip-parse-sexp-ignore-comments "" "NOT "))) | |
3060 | ) | |
3061 | ||
3062 | \f | |
3063 | ;; sentence ,paragraph and heading | |
3064 | ||
3065 | (defun vip-forward-sentence (arg) | |
3066 | "Forward sentence." | |
3067 | (interactive "P") | |
3068 | (push-mark nil t) | |
3069 | (let ((val (vip-p-val arg)) | |
3070 | (com (vip-getcom arg))) | |
3071 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
3072 | (forward-sentence val) | |
3073 | (if com (vip-execute-com 'vip-forward-sentence nil com)))) | |
3074 | ||
3075 | (defun vip-backward-sentence (arg) | |
3076 | "Backward sentence." | |
3077 | (interactive "P") | |
3078 | (push-mark nil t) | |
3079 | (let ((val (vip-p-val arg)) | |
3080 | (com (vip-getcom arg))) | |
3081 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
3082 | (backward-sentence val) | |
3083 | (if com (vip-execute-com 'vip-backward-sentence nil com)))) | |
3084 | ||
3085 | (defun vip-forward-paragraph (arg) | |
3086 | "Forward paragraph." | |
3087 | (interactive "P") | |
3088 | (push-mark nil t) | |
3089 | (let ((val (vip-p-val arg)) | |
3090 | (com (vip-getCom arg))) | |
3091 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
3092 | (forward-paragraph val) | |
3093 | (if com | |
3094 | (progn | |
3095 | (backward-char 1) | |
3096 | (vip-execute-com 'vip-forward-paragraph nil com))))) | |
3097 | ||
3098 | (defun vip-backward-paragraph (arg) | |
3099 | "Backward paragraph." | |
3100 | (interactive "P") | |
3101 | (push-mark nil t) | |
3102 | (let ((val (vip-p-val arg)) | |
3103 | (com (vip-getCom arg))) | |
3104 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
3105 | (backward-paragraph val) | |
3106 | (if com | |
3107 | (progn | |
3108 | (forward-char 1) | |
3109 | (vip-execute-com 'vip-backward-paragraph nil com) | |
3110 | (backward-char 1))))) | |
3111 | ||
3112 | ;; should be mode-specific etc. | |
3113 | ||
3114 | (defun vip-prev-heading (arg) | |
3115 | (interactive "P") | |
3116 | (let ((val (vip-p-val arg)) | |
3117 | (com (vip-getCom arg))) | |
3118 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
3119 | (re-search-backward vip-heading-start nil t val) | |
3120 | (goto-char (match-beginning 0)) | |
3121 | (if com (vip-execute-com 'vip-prev-heading nil com)))) | |
3122 | ||
3123 | (defun vip-heading-end (arg) | |
3124 | (interactive "P") | |
3125 | (let ((val (vip-p-val arg)) | |
3126 | (com (vip-getCom arg))) | |
3127 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
3128 | (re-search-forward vip-heading-end nil t val) | |
3129 | (goto-char (match-beginning 0)) | |
3130 | (if com (vip-execute-com 'vip-heading-end nil com)))) | |
3131 | ||
3132 | (defun vip-next-heading (arg) | |
3133 | (interactive "P") | |
3134 | (let ((val (vip-p-val arg)) | |
3135 | (com (vip-getCom arg))) | |
3136 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
3137 | (end-of-line) | |
3138 | (re-search-forward vip-heading-start nil t val) | |
3139 | (goto-char (match-beginning 0)) | |
3140 | (if com (vip-execute-com 'vip-next-heading nil com)))) | |
3141 | ||
3142 | \f | |
3143 | ;; scrolling | |
3144 | ||
d5e52f99 MK |
3145 | (defun vip-scroll-screen (arg) |
3146 | "Scroll to next screen." | |
3147 | (interactive "p") | |
3148 | (condition-case nil | |
3149 | (if (> arg 0) | |
3150 | (while (> arg 0) | |
3151 | (scroll-up) | |
3152 | (setq arg (1- arg))) | |
3153 | (while (> 0 arg) | |
3154 | (scroll-down) | |
3155 | (setq arg (1+ arg)))) | |
3156 | (error (beep 1) | |
3157 | (if (> arg 0) | |
3158 | (progn | |
3159 | (message "End of buffer") | |
3160 | (goto-char (point-max))) | |
3161 | (message "Beginning of buffer") | |
3162 | (goto-char (point-min)))) | |
3163 | )) | |
3164 | ||
3165 | (defun vip-scroll-screen-back (arg) | |
3166 | "Scroll to previous screen." | |
3167 | (interactive "p") | |
3168 | (vip-scroll-screen (- arg))) | |
3169 | ||
3170 | (defun vip-scroll-down (arg) | |
3171 | "Pull down half screen." | |
3172 | (interactive "P") | |
3173 | (condition-case nil | |
3174 | (if (null arg) | |
3175 | (scroll-down (/ (window-height) 2)) | |
3176 | (scroll-down arg)) | |
3177 | (error (beep 1) | |
3178 | (message "Beginning of buffer") | |
3179 | (goto-char (point-min))))) | |
3180 | ||
3181 | (defun vip-scroll-down-one (arg) | |
3182 | "Scroll up one line." | |
3183 | (interactive "p") | |
3184 | (scroll-down arg)) | |
3185 | ||
3186 | (defun vip-scroll-up (arg) | |
3187 | "Pull up half screen." | |
3188 | (interactive "P") | |
3189 | (condition-case nil | |
3190 | (if (null arg) | |
3191 | (scroll-up (/ (window-height) 2)) | |
3192 | (scroll-up arg)) | |
3193 | (error (beep 1) | |
3194 | (message "End of buffer") | |
3195 | (goto-char (point-max))))) | |
3196 | ||
3197 | (defun vip-scroll-up-one (arg) | |
3198 | "Scroll down one line." | |
3199 | (interactive "p") | |
3200 | (scroll-up arg)) | |
3201 | ||
3202 | \f | |
3203 | ;; searching | |
3204 | ||
3205 | (defun vip-if-string (prompt) | |
3206 | (let ((s (vip-read-string-with-history | |
3207 | prompt | |
3208 | nil ; no initial | |
3209 | 'vip-search-history | |
3210 | (car vip-search-history)))) | |
3211 | (if (not (string= s "")) | |
3212 | (setq vip-s-string s)))) | |
3213 | ||
3214 | ||
3215 | (defun vip-toggle-search-style (arg) | |
3216 | "Toggle the value of vip-case-fold-search/vip-re-search. | |
3217 | Without prefix argument, will ask which search style to toggle. With prefix | |
3218 | arg 1,toggles vip-case-fold-search; with arg 2 toggles vip-re-search. | |
3219 | ||
3220 | Although this function is bound to \\[vip-toggle-search-style], the most | |
3221 | convenient way to use it is to bind `//' to the macro | |
3222 | `1 M-x vip-toggle-search-style' and `///' to | |
3223 | `2 M-x vip-toggle-search-style'. In this way, hitting `//' quickly will | |
3224 | toggle case-fold-search and hitting `/' three times witth toggle regexp | |
3225 | search. Macros are more convenient in this case because they don't affect | |
3226 | the Emacs binding of `/'." | |
3227 | (interactive "P") | |
3228 | (let (msg) | |
3229 | (cond ((or (eq arg 1) | |
3230 | (and (null arg) | |
3231 | (y-or-n-p (format "Search style: '%s'. Want '%s'? " | |
3232 | (if vip-case-fold-search | |
3233 | "case-insensitive" "case-sensitive") | |
3234 | (if vip-case-fold-search | |
3235 | "case-sensitive" | |
3236 | "case-insensitive"))))) | |
3237 | (setq vip-case-fold-search (null vip-case-fold-search)) | |
3238 | (if vip-case-fold-search | |
3239 | (setq msg "Search becomes case-insensitive") | |
3240 | (setq msg "Search becomes case-sensitive"))) | |
3241 | ((or (eq arg 2) | |
3242 | (and (null arg) | |
3243 | (y-or-n-p (format "Search style: '%s'. Want '%s'? " | |
3244 | (if vip-re-search | |
3245 | "regexp-search" "vanilla-search") | |
3246 | (if vip-re-search | |
3247 | "vanilla-search" | |
3248 | "regexp-search"))))) | |
3249 | (setq vip-re-search (null vip-re-search)) | |
3250 | (if vip-re-search | |
3251 | (setq msg "Search becomes regexp-style") | |
3252 | (setq msg "Search becomes vanilla-style"))) | |
3253 | (t | |
3254 | (setq msg "Search style remains unchanged"))) | |
3255 | (prin1 msg t))) | |
3256 | ||
3257 | (defun vip-set-vi-search-style-macros (unset) | |
3258 | "Set the macros for toggling the search style in Viper's vi-state. | |
3259 | The macro that toggles case sensitivity is bound to `//', and the one that | |
3260 | toggles regexp search is bound to `///'. | |
3261 | With a prefix argument, this function unsets the macros. " | |
3262 | (interactive "P") | |
3263 | (or noninteractive | |
3264 | (if (not unset) | |
3265 | (progn | |
3266 | ;; toggle case sensitivity in search | |
3267 | (vip-record-kbd-macro | |
3268 | "//" 'vi-state | |
3269 | [1 (meta x) v i p - t o g g l e - s e a r c h - s t y l e return] | |
3270 | 't) | |
3271 | ;; toggle regexp/vanila search | |
3272 | (vip-record-kbd-macro | |
3273 | "///" 'vi-state | |
3274 | [2 (meta x) v i p - t o g g l e - s e a r c h - s t y l e return] | |
3275 | 't) | |
3276 | (if (interactive-p) | |
3277 | (message | |
3278 | "// and /// now toggle case-sensitivity and regexp search."))) | |
3279 | (vip-unrecord-kbd-macro "//" 'vi-state) | |
3280 | (sit-for 2) | |
3281 | (vip-unrecord-kbd-macro "///" 'vi-state)))) | |
3282 | ||
3283 | (defun vip-set-emacs-search-style-macros (unset &optional arg-majormode) | |
3284 | "Set the macros for toggling the search style in Viper's emacs-state. | |
3285 | The macro that toggles case sensitivity is bound to `//', and the one that | |
3286 | toggles regexp search is bound to `///'. | |
3287 | With a prefix argument, this function unsets the macros. | |
3288 | If the optional prefix argument is non-nil and specifies a valid major mode, | |
3289 | this sets the macros only in the macros in that major mode. Otherwise, | |
3290 | the macros are set in the current major mode. | |
3291 | \(When unsetting the macros, the second argument has no effect.\)" | |
3292 | (interactive "P") | |
3293 | (or noninteractive | |
3294 | (if (not unset) | |
3295 | (progn | |
3296 | ;; toggle case sensitivity in search | |
3297 | (vip-record-kbd-macro | |
3298 | "//" 'emacs-state | |
3299 | [1 (meta x) v i p - t o g g l e - s e a r c h - s t y l e return] | |
3300 | (or arg-majormode major-mode)) | |
3301 | ;; toggle regexp/vanila search | |
3302 | (vip-record-kbd-macro | |
3303 | "///" 'emacs-state | |
3304 | [2 (meta x) v i p - t o g g l e - s e a r c h - s t y l e return] | |
3305 | (or arg-majormode major-mode)) | |
3306 | (if (interactive-p) | |
3307 | (message | |
3308 | "// and /// now toggle case-sensitivity and regexp search."))) | |
3309 | (vip-unrecord-kbd-macro "//" 'emacs-state) | |
3310 | (sit-for 2) | |
3311 | (vip-unrecord-kbd-macro "///" 'emacs-state)))) | |
3312 | ||
3313 | ||
3314 | (defun vip-search-forward (arg) | |
3315 | "Search a string forward. | |
3316 | ARG is used to find the ARG's occurrence of the string. | |
3317 | Null string will repeat previous search." | |
3318 | (interactive "P") | |
3319 | (let ((val (vip-P-val arg)) | |
3320 | (com (vip-getcom arg)) | |
3321 | (old-str vip-s-string)) | |
3322 | (setq vip-s-forward t) | |
3323 | (vip-if-string "/") | |
3324 | ;; this is not used at present, but may be used later | |
3325 | (if (or (not (equal old-str vip-s-string)) | |
3326 | (not (markerp vip-local-search-start-marker)) | |
3327 | (not (marker-buffer vip-local-search-start-marker))) | |
3328 | (setq vip-local-search-start-marker (point-marker))) | |
3329 | (vip-search vip-s-string t val) | |
3330 | (if com | |
3331 | (progn | |
3332 | (vip-move-marker-locally 'vip-com-point (mark t)) | |
3333 | (vip-execute-com 'vip-search-next val com))))) | |
3334 | ||
3335 | (defun vip-search-backward (arg) | |
3336 | "Search a string backward. | |
3337 | ARG is used to find the ARG's occurrence of the string. | |
3338 | Null string will repeat previous search." | |
3339 | (interactive "P") | |
3340 | (let ((val (vip-P-val arg)) | |
3341 | (com (vip-getcom arg)) | |
3342 | (old-str vip-s-string)) | |
3343 | (setq vip-s-forward nil) | |
3344 | (vip-if-string "?") | |
3345 | ;; this is not used at present, but may be used later | |
3346 | (if (or (not (equal old-str vip-s-string)) | |
3347 | (not (markerp vip-local-search-start-marker)) | |
3348 | (not (marker-buffer vip-local-search-start-marker))) | |
3349 | (setq vip-local-search-start-marker (point-marker))) | |
3350 | (vip-search vip-s-string nil val) | |
3351 | (if com | |
3352 | (progn | |
3353 | (vip-move-marker-locally 'vip-com-point (mark t)) | |
3354 | (vip-execute-com 'vip-search-next val com))))) | |
3355 | ||
3356 | ||
3357 | ;; Search for COUNT's occurrence of STRING. | |
3358 | ;; Search is forward if FORWARD is non-nil, otherwise backward. | |
3359 | ;; INIT-POINT is the position where search is to start. | |
3360 | ;; Arguments: | |
3361 | ;; (STRING FORW COUNT &optional NO-OFFSET INIT-POINT LIMIT FAIL-IF-NOT-FOUND) | |
3362 | (defun vip-search (string forward arg | |
3363 | &optional no-offset init-point fail-if-not-found) | |
3364 | (if (not (equal string "")) | |
3365 | (let ((val (vip-p-val arg)) | |
3366 | (com (vip-getcom arg)) | |
3367 | (offset (not no-offset)) | |
3368 | (case-fold-search vip-case-fold-search) | |
3369 | (start-point (or init-point (point)))) | |
3370 | (vip-deactivate-mark) | |
3371 | (if forward | |
3372 | (condition-case nil | |
3373 | (progn | |
3374 | (if offset (vip-forward-char-carefully)) | |
3375 | (if vip-re-search | |
3376 | (progn | |
3377 | (re-search-forward string nil nil val) | |
3378 | (re-search-backward string)) | |
3379 | (search-forward string nil nil val) | |
3380 | (search-backward string)) | |
3381 | (if (not (equal start-point (point))) | |
3382 | (push-mark start-point t))) | |
3383 | (search-failed | |
3384 | (if (and (not fail-if-not-found) vip-search-wrap-around-t) | |
3385 | (progn | |
3386 | (message "Search wrapped around BOTTOM of buffer") | |
3387 | (goto-char (point-min)) | |
3388 | (vip-search string forward (cons 1 com) t start-point 'fail) | |
3389 | ;; don't wait in macros | |
3390 | (or executing-kbd-macro (sit-for 2)) | |
3391 | ;; delete the wrap-around message | |
3392 | (message "") | |
3393 | ) | |
3394 | (goto-char start-point) | |
3395 | (error "`%s': %s not found" | |
3396 | string | |
3397 | (if vip-re-search "Pattern" "String")) | |
3398 | ))) | |
3399 | ;; backward | |
3400 | (condition-case nil | |
3401 | (progn | |
3402 | (if vip-re-search | |
3403 | (re-search-backward string nil nil val) | |
3404 | (search-backward string nil nil val)) | |
3405 | (if (not (equal start-point (point))) | |
3406 | (push-mark start-point t))) | |
3407 | (search-failed | |
3408 | (if (and (not fail-if-not-found) vip-search-wrap-around-t) | |
3409 | (progn | |
3410 | (message "Search wrapped around TOP of buffer") | |
3411 | (goto-char (point-max)) | |
3412 | (vip-search string forward (cons 1 com) t start-point 'fail) | |
3413 | ;; don't wait in macros | |
3414 | (or executing-kbd-macro (sit-for 2)) | |
3415 | ;; delete the wrap-around message | |
3416 | (message "") | |
3417 | ) | |
3418 | (goto-char start-point) | |
3419 | (error "`%s': %s not found" | |
3420 | string | |
3421 | (if vip-re-search "Pattern" "String")) | |
3422 | )))) | |
3423 | ;; pull up or down if at top/bottom of window | |
3424 | (vip-adjust-window) | |
3425 | ;; highlight the result of search | |
3426 | ;; don't wait and don't highlight in macros | |
3427 | (or executing-kbd-macro | |
3428 | vip-inside-command-argument-action | |
3429 | (vip-flash-search-pattern)) | |
3430 | ))) | |
3431 | ||
3432 | (defun vip-search-next (arg) | |
3433 | "Repeat previous search." | |
3434 | (interactive "P") | |
3435 | (let ((val (vip-p-val arg)) | |
3436 | (com (vip-getcom arg))) | |
3437 | (if (null vip-s-string) (error vip-NoPrevSearch)) | |
3438 | (vip-search vip-s-string vip-s-forward arg) | |
3439 | (if com | |
3440 | (progn | |
3441 | (vip-move-marker-locally 'vip-com-point (mark t)) | |
3442 | (vip-execute-com 'vip-search-next val com))))) | |
3443 | ||
3444 | (defun vip-search-Next (arg) | |
3445 | "Repeat previous search in the reverse direction." | |
3446 | (interactive "P") | |
3447 | (let ((val (vip-p-val arg)) | |
3448 | (com (vip-getcom arg))) | |
3449 | (if (null vip-s-string) (error vip-NoPrevSearch)) | |
3450 | (vip-search vip-s-string (not vip-s-forward) arg) | |
3451 | (if com | |
3452 | (progn | |
3453 | (vip-move-marker-locally 'vip-com-point (mark t)) | |
3454 | (vip-execute-com 'vip-search-Next val com))))) | |
3455 | ||
3456 | ||
3457 | ;; Search contents of buffer defined by one of Viper's motion commands. | |
3458 | ;; Repeatable via `n' and `N'. | |
3459 | (defun vip-buffer-search-enable (&optional c) | |
3460 | (cond (c (setq vip-buffer-search-char c)) | |
3461 | ((null vip-buffer-search-char) | |
3462 | (setq vip-buffer-search-char ?g))) | |
3463 | (define-key vip-vi-basic-map | |
3464 | (char-to-string vip-buffer-search-char) 'vip-command-argument) | |
3465 | (aset vip-exec-array vip-buffer-search-char 'vip-exec-buffer-search) | |
3466 | (setq vip-prefix-commands (cons vip-buffer-search-char vip-prefix-commands))) | |
3467 | ||
3468 | ;; This is a Viper wraper for isearch-forward. | |
3469 | (defun vip-isearch-forward (arg) | |
3470 | "Do incremental search forward." | |
3471 | (interactive "P") | |
3472 | ;; emacs bug workaround | |
3473 | (if (listp arg) (setq arg (car arg))) | |
3474 | (vip-exec-form-in-emacs (list 'isearch-forward arg))) | |
3475 | ||
3476 | ;; This is a Viper wraper for isearch-backward." | |
3477 | (defun vip-isearch-backward (arg) | |
3478 | "Do incremental search backward." | |
3479 | (interactive "P") | |
3480 | ;; emacs bug workaround | |
3481 | (if (listp arg) (setq arg (car arg))) | |
3482 | (vip-exec-form-in-emacs (list 'isearch-backward arg))) | |
3483 | ||
3484 | \f | |
3485 | ;; visiting and killing files, buffers | |
3486 | ||
3487 | (defun vip-switch-to-buffer () | |
3488 | "Switch to buffer in the current window." | |
3489 | (interactive) | |
3490 | (let (buffer) | |
3491 | (setq buffer | |
3492 | (read-buffer | |
3493 | (format "Switch to buffer in this window \(%s\): " | |
3494 | (buffer-name (other-buffer (current-buffer)))))) | |
3495 | (switch-to-buffer buffer) | |
3496 | )) | |
3497 | ||
3498 | (defun vip-switch-to-buffer-other-window () | |
3499 | "Switch to buffer in another window." | |
3500 | (interactive) | |
3501 | (let (buffer) | |
3502 | (setq buffer | |
3503 | (read-buffer | |
3504 | (format "Switch to buffer in another window \(%s\): " | |
3505 | (buffer-name (other-buffer (current-buffer)))))) | |
3506 | (switch-to-buffer-other-window buffer) | |
3507 | )) | |
3508 | ||
3509 | (defun vip-kill-buffer () | |
3510 | "Kill a buffer." | |
3511 | (interactive) | |
3512 | (let (buffer buffer-name) | |
3513 | (setq buffer-name | |
3514 | (read-buffer | |
3515 | (format "Kill buffer \(%s\): " | |
3516 | (buffer-name (current-buffer))))) | |
3517 | (setq buffer | |
3518 | (if (null buffer-name) | |
3519 | (current-buffer) | |
3520 | (get-buffer buffer-name))) | |
3521 | (if (null buffer) (error "`%s': No such buffer" buffer-name)) | |
3522 | (if (or (not (buffer-modified-p buffer)) | |
3523 | (y-or-n-p | |
3524 | (format | |
3525 | "Buffer `%s' is modified, are you sure you want to kill it? " | |
3526 | buffer-name))) | |
3527 | (kill-buffer buffer) | |
3528 | (error "Buffer not killed")))) | |
3529 | ||
3530 | ||
3531 | (defvar vip-smart-suffix-list | |
3532 | '("" "tex" "c" "cc" "C" "el" "java" "html" "htm" "pl" "P" "p") | |
3533 | "*List of suffixes that Viper automatically tries to append to filenames ending with a `.'. | |
3534 | This is useful when you the current directory contains files with the same | |
3535 | prefix and many different suffixes. Usually, only one of the suffixes | |
3536 | represents an editable file. However, file completion will stop at the `.' | |
3537 | The smart suffix feature lets you hit RET in such a case, and Viper will | |
3538 | select the appropriate suffix. | |
3539 | ||
3540 | Suffixes are tried in the order given and the first suffix for which a | |
3541 | corresponding file exists is selected. If no file exists for any of the | |
3542 | suffixes, the user is asked to confirm. | |
3543 | ||
3544 | To turn this feature off, set this variable to nil.") | |
3545 | ||
3546 | ;; Try to add suffix to files ending with a `.' | |
3547 | ;; Useful when the user hits RET on a non-completed file name. | |
3548 | (defun vip-file-add-suffix () | |
3549 | (let ((count 0) | |
3550 | (len (length vip-smart-suffix-list)) | |
3551 | (file (buffer-string)) | |
3552 | found key cmd suff) | |
3553 | (goto-char (point-max)) | |
3554 | (if (and vip-smart-suffix-list (string-match "\\.$" file)) | |
3555 | (progn | |
3556 | (while (and (not found) (< count len)) | |
3557 | (setq suff (nth count vip-smart-suffix-list) | |
3558 | count (1+ count)) | |
3559 | (if (file-exists-p (format "%s%s" file suff)) | |
3560 | (progn | |
3561 | (setq found t) | |
3562 | (insert suff)))) | |
3563 | ||
3564 | (if found | |
3565 | () | |
3566 | (vip-tmp-insert-at-eob " [Please complete file name]") | |
3567 | (unwind-protect | |
3568 | (while (not (memq cmd '(exit-minibuffer vip-exit-minibuffer))) | |
3569 | (setq cmd | |
3570 | (key-binding (setq key (read-key-sequence nil)))) | |
3571 | (cond ((eq cmd 'self-insert-command) | |
3572 | (if vip-xemacs-p | |
3573 | (insert (events-to-keys key)) | |
3574 | (insert key))) | |
3575 | ((memq cmd '(exit-minibuffer vip-exit-minibuffer)) | |
3576 | nil) | |
3577 | (t (command-execute cmd))) | |
3578 | ))) | |
3579 | )) | |
3580 | )) | |
3581 | ||
3582 | ||
d5e52f99 MK |
3583 | |
3584 | \f | |
3585 | ;; yank and pop | |
3586 | ||
3587 | (defsubst vip-yank (text) | |
3588 | "Yank TEXT silently. This works correctly with Emacs's yank-pop command." | |
3589 | (insert text) | |
3590 | (setq this-command 'yank)) | |
3591 | ||
3592 | (defun vip-put-back (arg) | |
3593 | "Put back after point/below line." | |
3594 | (interactive "P") | |
3595 | (let ((val (vip-p-val arg)) | |
3596 | (text (if vip-use-register | |
3597 | (cond ((vip-valid-register vip-use-register '(digit)) | |
3598 | (current-kill (- vip-use-register ?1) 'do-not-rotate)) | |
3599 | ((vip-valid-register vip-use-register) | |
3600 | (get-register (downcase vip-use-register))) | |
3601 | (t (error vip-InvalidRegister vip-use-register))) | |
3602 | (current-kill 0)))) | |
3603 | (if (null text) | |
3604 | (if vip-use-register | |
3605 | (let ((reg vip-use-register)) | |
3606 | (setq vip-use-register nil) | |
3607 | (error vip-EmptyRegister reg)) | |
3608 | (error ""))) | |
3609 | (setq vip-use-register nil) | |
3610 | (if (vip-end-with-a-newline-p text) | |
3611 | (progn | |
3612 | (end-of-line) | |
3613 | (if (eobp) | |
3614 | (insert "\n") | |
3615 | (forward-line 1)) | |
3616 | (beginning-of-line)) | |
3617 | (if (not (eolp)) (vip-forward-char-carefully))) | |
3618 | (set-marker (vip-mark-marker) (point) (current-buffer)) | |
3619 | (vip-set-destructive-command | |
3620 | (list 'vip-put-back val nil vip-use-register nil nil)) | |
3621 | (vip-loop val (vip-yank text))) | |
3622 | ;; Vi puts cursor on the last char when the yanked text doesn't contain a | |
3623 | ;; newline; it leaves the cursor at the beginning when the text contains | |
3624 | ;; a newline | |
3625 | (if (vip-same-line (point) (mark)) | |
3626 | (or (= (point) (mark)) (vip-backward-char-carefully)) | |
3627 | (exchange-point-and-mark) | |
3628 | (if (bolp) | |
3629 | (back-to-indentation))) | |
3630 | (vip-deactivate-mark)) | |
3631 | ||
3632 | (defun vip-Put-back (arg) | |
3633 | "Put back at point/above line." | |
3634 | (interactive "P") | |
3635 | (let ((val (vip-p-val arg)) | |
3636 | (text (if vip-use-register | |
3637 | (cond ((vip-valid-register vip-use-register '(digit)) | |
3638 | (current-kill (- vip-use-register ?1) 'do-not-rotate)) | |
3639 | ((vip-valid-register vip-use-register) | |
3640 | (get-register (downcase vip-use-register))) | |
3641 | (t (error vip-InvalidRegister vip-use-register))) | |
3642 | (current-kill 0)))) | |
3643 | (if (null text) | |
3644 | (if vip-use-register | |
3645 | (let ((reg vip-use-register)) | |
3646 | (setq vip-use-register nil) | |
3647 | (error vip-EmptyRegister reg)) | |
3648 | (error ""))) | |
3649 | (setq vip-use-register nil) | |
3650 | (if (vip-end-with-a-newline-p text) (beginning-of-line)) | |
3651 | (vip-set-destructive-command | |
3652 | (list 'vip-Put-back val nil vip-use-register nil nil)) | |
3653 | (set-marker (vip-mark-marker) (point) (current-buffer)) | |
3654 | (vip-loop val (vip-yank text))) | |
3655 | ;; Vi puts cursor on the last char when the yanked text doesn't contain a | |
3656 | ;; newline; it leaves the cursor at the beginning when the text contains | |
3657 | ;; a newline | |
3658 | (if (vip-same-line (point) (mark)) | |
3659 | (or (= (point) (mark)) (vip-backward-char-carefully)) | |
3660 | (exchange-point-and-mark) | |
3661 | (if (bolp) | |
3662 | (back-to-indentation))) | |
3663 | (vip-deactivate-mark)) | |
3664 | ||
3665 | ||
3666 | ;; Copy region to kill-ring. | |
3667 | ;; If BEG and END do not belong to the same buffer, copy empty region. | |
3668 | (defun vip-copy-region-as-kill (beg end) | |
3669 | (condition-case nil | |
3670 | (copy-region-as-kill beg end) | |
3671 | (error (copy-region-as-kill beg beg)))) | |
3672 | ||
3673 | ||
3674 | (defun vip-delete-char (arg) | |
3675 | "Delete character." | |
3676 | (interactive "P") | |
3677 | (let ((val (vip-p-val arg))) | |
3678 | (vip-set-destructive-command (list 'vip-delete-char val nil nil nil nil)) | |
3679 | (if (> val 1) | |
3680 | (save-excursion | |
3681 | (let ((here (point))) | |
3682 | (end-of-line) | |
3683 | (if (> val (- (point) here)) | |
3684 | (setq val (- (point) here)))))) | |
3685 | (if (and (eq val 0) (not vip-ex-style-motion)) (setq val 1)) | |
3686 | (if (and vip-ex-style-motion (eolp)) | |
3687 | (if (bolp) (error "") (setq val 0))) ; not bol---simply back 1 ch | |
3688 | (if vip-use-register | |
3689 | (progn | |
3690 | (cond ((vip-valid-register vip-use-register '((Letter))) | |
3691 | (vip-append-to-register | |
3692 | (downcase vip-use-register) (point) (- (point) val))) | |
3693 | ((vip-valid-register vip-use-register) | |
3694 | (copy-to-register | |
3695 | vip-use-register (point) (- (point) val) nil)) | |
3696 | (t (error vip-InvalidRegister vip-use-register))) | |
3697 | (setq vip-use-register nil))) | |
3698 | (if vip-ex-style-motion | |
3699 | (progn | |
3700 | (delete-char val t) | |
3701 | (if (and (eolp) (not (bolp))) (backward-char 1))) | |
3702 | (if (eolp) | |
3703 | (delete-backward-char val t) | |
3704 | (delete-char val t))))) | |
3705 | ||
3706 | (defun vip-delete-backward-char (arg) | |
3707 | "Delete previous character. On reaching beginning of line, stop and beep." | |
3708 | (interactive "P") | |
3709 | (let ((val (vip-p-val arg))) | |
3710 | (vip-set-destructive-command | |
3711 | (list 'vip-delete-backward-char val nil nil nil nil)) | |
3712 | (if (> val 1) | |
3713 | (save-excursion | |
3714 | (let ((here (point))) | |
3715 | (beginning-of-line) | |
3716 | (if (> val (- here (point))) | |
3717 | (setq val (- here (point))))))) | |
3718 | (if vip-use-register | |
3719 | (progn | |
3720 | (cond ((vip-valid-register vip-use-register '(Letter)) | |
3721 | (vip-append-to-register | |
3722 | (downcase vip-use-register) (point) (+ (point) val))) | |
3723 | ((vip-valid-register vip-use-register) | |
3724 | (copy-to-register | |
3725 | vip-use-register (point) (+ (point) val) nil)) | |
3726 | (t (error vip-InvalidRegister vip-use-register))) | |
3727 | (setq vip-use-register nil))) | |
3728 | (if (bolp) (ding) | |
3729 | (delete-backward-char val t)))) | |
3730 | ||
3731 | (defun vip-del-backward-char-in-insert () | |
3732 | "Delete 1 char backwards while in insert mode." | |
3733 | (interactive) | |
3734 | (if (and vip-ex-style-editing-in-insert (bolp)) | |
3735 | (beep 1) | |
3736 | (delete-backward-char 1 t))) | |
3737 | ||
3738 | (defun vip-del-backward-char-in-replace () | |
3739 | "Delete one character in replace mode. | |
3740 | If `vip-delete-backwards-in-replace' is t, then DEL key actually deletes | |
3741 | charecters. If it is nil, then the cursor just moves backwards, similarly | |
3742 | to Vi. The variable `vip-ex-style-editing-in-insert', if t, doesn't let the | |
3743 | cursor move past the beginning of line." | |
3744 | (interactive) | |
3745 | (cond (vip-delete-backwards-in-replace | |
3746 | (cond ((not (bolp)) | |
3747 | (delete-backward-char 1 t)) | |
3748 | (vip-ex-style-editing-in-insert | |
3749 | (beep 1)) | |
3750 | ((bobp) | |
3751 | (beep 1)) | |
3752 | (t | |
3753 | (delete-backward-char 1 t)))) | |
3754 | (vip-ex-style-editing-in-insert | |
3755 | (if (bolp) | |
3756 | (beep 1) | |
3757 | (backward-char 1))) | |
3758 | (t | |
3759 | (backward-char 1)))) | |
3760 | ||
3761 | ||
3762 | \f | |
3763 | ;; join lines. | |
3764 | ||
3765 | (defun vip-join-lines (arg) | |
3766 | "Join this line to next, if ARG is nil. Otherwise, join ARG lines." | |
3767 | (interactive "*P") | |
3768 | (let ((val (vip-P-val arg))) | |
3769 | (vip-set-destructive-command (list 'vip-join-lines val nil nil nil nil)) | |
3770 | (vip-loop (if (null val) 1 (1- val)) | |
3771 | (progn | |
3772 | (end-of-line) | |
3773 | (if (not (eobp)) | |
3774 | (progn | |
3775 | (forward-line 1) | |
3776 | (delete-region (point) (1- (point))) | |
3777 | (fixup-whitespace))))))) | |
3778 | ||
3779 | \f | |
3780 | ;; Replace state | |
3781 | ||
3782 | (defun vip-change (beg end) | |
3783 | (if (markerp beg) (setq beg (marker-position beg))) | |
3784 | (if (markerp end) (setq end (marker-position end))) | |
3785 | ;; beg is sometimes (mark t), which may be nil | |
3786 | (or beg (setq beg end)) | |
3787 | ||
3788 | (vip-set-complex-command-for-undo) | |
3789 | (if vip-use-register | |
3790 | (progn | |
3791 | (copy-to-register vip-use-register beg end nil) | |
3792 | (setq vip-use-register nil))) | |
3793 | (vip-set-replace-overlay beg end) | |
3794 | (setq last-command nil) ; separate repl text from prev kills | |
3795 | ||
3796 | (if (= (vip-replace-start) (point-max)) | |
3797 | (error "End of buffer")) | |
3798 | ||
3799 | (setq vip-last-replace-region | |
3800 | (buffer-substring (vip-replace-start) | |
3801 | (vip-replace-end))) | |
3802 | ||
3803 | ;; protect against error while inserting "@" and other disasters | |
3804 | ;; (e.g., read-only buff) | |
3805 | (condition-case conds | |
3806 | (if (or vip-allow-multiline-replace-regions | |
3807 | (vip-same-line (vip-replace-start) | |
3808 | (vip-replace-end))) | |
3809 | (progn | |
3810 | ;; tabs cause problems in replace, so untabify | |
3811 | (goto-char (vip-replace-end)) | |
3812 | (insert-before-markers "@") ; put placeholder after the TAB | |
3813 | (untabify (vip-replace-start) (point)) | |
3814 | ;; del @, don't put on kill ring | |
3815 | (delete-backward-char 1) | |
3816 | ||
3817 | (vip-set-replace-overlay-glyphs | |
3818 | vip-replace-region-start-delimiter | |
3819 | vip-replace-region-end-delimiter) | |
3820 | ;; this move takes care of the last posn in the overlay, which | |
3821 | ;; has to be shifted because of insert. We can't simply insert | |
3822 | ;; "$" before-markers because then overlay-start will shift the | |
3823 | ;; beginning of the overlay in case we are replacing a single | |
3824 | ;; character. This fixes the bug with `s' and `cl' commands. | |
3825 | (vip-move-replace-overlay (vip-replace-start) (point)) | |
3826 | (goto-char (vip-replace-start)) | |
3827 | (vip-change-state-to-replace t)) | |
3828 | (kill-region (vip-replace-start) | |
3829 | (vip-replace-end)) | |
3830 | (vip-hide-replace-overlay) | |
3831 | (vip-change-state-to-insert)) | |
3832 | (error ;; make sure that the overlay doesn't stay. | |
3833 | ;; go back to the original point | |
3834 | (goto-char (vip-replace-start)) | |
3835 | (vip-hide-replace-overlay) | |
3836 | (vip-message-conditions conds)))) | |
3837 | ||
3838 | ||
3839 | (defun vip-change-subr (beg end) | |
3840 | ;; beg is sometimes (mark t), which may be nil | |
3841 | (or beg (setq beg end)) | |
3842 | ||
3843 | (if vip-use-register | |
3844 | (progn | |
3845 | (copy-to-register vip-use-register beg end nil) | |
3846 | (setq vip-use-register nil))) | |
3847 | (kill-region beg end) | |
3848 | (setq this-command 'vip-change) | |
3849 | (vip-yank-last-insertion)) | |
3850 | ||
3851 | (defun vip-toggle-case (arg) | |
3852 | "Toggle character case." | |
3853 | (interactive "P") | |
3854 | (let ((val (vip-p-val arg)) (c)) | |
3855 | (vip-set-destructive-command (list 'vip-toggle-case val nil nil nil nil)) | |
3856 | (while (> val 0) | |
3857 | (setq c (following-char)) | |
3858 | (delete-char 1 nil) | |
3859 | (if (eq c (upcase c)) | |
3860 | (insert-char (downcase c) 1) | |
3861 | (insert-char (upcase c) 1)) | |
3862 | (if (eolp) (backward-char 1)) | |
3863 | (setq val (1- val))))) | |
3864 | ||
3865 | \f | |
3866 | ;; query replace | |
3867 | ||
3868 | (defun vip-query-replace () | |
3869 | "Query replace. | |
3870 | If a null string is suplied as the string to be replaced, | |
3871 | the query replace mode will toggle between string replace | |
3872 | and regexp replace." | |
3873 | (interactive) | |
3874 | (let (str) | |
3875 | (setq str (vip-read-string-with-history | |
3876 | (if vip-re-query-replace "Query replace regexp: " | |
3877 | "Query replace: ") | |
3878 | nil ; no initial | |
3879 | 'vip-replace1-history | |
3880 | (car vip-replace1-history) ; default | |
3881 | )) | |
3882 | (if (string= str "") | |
3883 | (progn | |
3884 | (setq vip-re-query-replace (not vip-re-query-replace)) | |
3885 | (message "Query replace mode changed to %s" | |
3886 | (if vip-re-query-replace "regexp replace" | |
3887 | "string replace"))) | |
3888 | (if vip-re-query-replace | |
3889 | (query-replace-regexp | |
3890 | str | |
3891 | (vip-read-string-with-history | |
3892 | (format "Query replace regexp `%s' with: " str) | |
3893 | nil ; no initial | |
3894 | 'vip-replace1-history | |
3895 | (car vip-replace1-history) ; default | |
3896 | )) | |
3897 | (query-replace | |
3898 | str | |
3899 | (vip-read-string-with-history | |
3900 | (format "Query replace `%s' with: " str) | |
3901 | nil ; no initial | |
3902 | 'vip-replace1-history | |
3903 | (car vip-replace1-history) ; default | |
3904 | )))))) | |
3905 | ||
3906 | \f | |
3907 | ;; marking | |
3908 | ||
3909 | (defun vip-mark-beginning-of-buffer () | |
3910 | "Mark beginning of buffer." | |
3911 | (interactive) | |
3912 | (push-mark (point)) | |
3913 | (goto-char (point-min)) | |
3914 | (exchange-point-and-mark) | |
3915 | (message "Mark set at the beginning of buffer")) | |
3916 | ||
3917 | (defun vip-mark-end-of-buffer () | |
3918 | "Mark end of buffer." | |
3919 | (interactive) | |
3920 | (push-mark (point)) | |
3921 | (goto-char (point-max)) | |
3922 | (exchange-point-and-mark) | |
3923 | (message "Mark set at the end of buffer")) | |
3924 | ||
3925 | (defun vip-mark-point () | |
3926 | "Set mark at point of buffer." | |
3927 | (interactive) | |
3928 | (let ((char (read-char))) | |
3929 | (cond ((and (<= ?a char) (<= char ?z)) | |
3930 | (point-to-register (1+ (- char ?a)))) | |
3931 | ((= char ?<) (vip-mark-beginning-of-buffer)) | |
3932 | ((= char ?>) (vip-mark-end-of-buffer)) | |
3933 | ((= char ?.) (vip-set-mark-if-necessary)) | |
3934 | ((= char ?,) (vip-cycle-through-mark-ring)) | |
3935 | ((= char ?D) (mark-defun)) | |
3936 | (t (error "")) | |
3937 | ))) | |
3938 | ||
3939 | ;; Algorithm: If first invocation of this command save mark on ring, goto | |
3940 | ;; mark, M0, and pop the most recent elt from the mark ring into mark, | |
3941 | ;; making it into the new mark, M1. | |
3942 | ;; Push this mark back and set mark to the original point position, p1. | |
3943 | ;; So, if you hit '' or `` then you can return to p1. | |
3944 | ;; | |
3945 | ;; If repeated command, pop top elt from the ring into mark and | |
3946 | ;; jump there. This forgets the position, p1, and puts M1 back into mark. | |
3947 | ;; Then we save the current pos, which is M0, jump to M1 and pop M2 from | |
3948 | ;; the ring into mark. Push M2 back on the ring and set mark to M0. | |
3949 | ;; etc. | |
3950 | (defun vip-cycle-through-mark-ring () | |
3951 | "Visit previous locations on the mark ring. | |
3952 | One can use `` and '' to temporarily jump 1 step back." | |
3953 | (let* ((sv-pt (point))) | |
3954 | ;; if repeated `m,' command, pop the previously saved mark. | |
3955 | ;; Prev saved mark is actually prev saved point. It is used if the | |
3956 | ;; user types `` or '' and is discarded | |
3957 | ;; from the mark ring by the next `m,' command. | |
3958 | ;; In any case, go to the previous or previously saved mark. | |
3959 | ;; Then push the current mark (popped off the ring) and set current | |
3960 | ;; point to be the mark. Current pt as mark is discarded by the next | |
3961 | ;; m, command. | |
3962 | (if (eq last-command 'vip-cycle-through-mark-ring) | |
3963 | () | |
3964 | ;; save current mark if the first iteration | |
3965 | (setq mark-ring (delete (vip-mark-marker) mark-ring)) | |
3966 | (if (mark t) | |
3967 | (push-mark (mark t) t)) ) | |
3968 | (pop-mark) | |
3969 | (set-mark-command 1) | |
3970 | ;; don't duplicate mark on the ring | |
3971 | (setq mark-ring (delete (vip-mark-marker) mark-ring)) | |
3972 | (push-mark sv-pt t) | |
3973 | (vip-deactivate-mark) | |
3974 | (setq this-command 'vip-cycle-through-mark-ring) | |
3975 | )) | |
3976 | ||
3977 | ||
3978 | (defun vip-goto-mark (arg) | |
3979 | "Go to mark." | |
3980 | (interactive "P") | |
3981 | (let ((char (read-char)) | |
3982 | (com (vip-getcom arg))) | |
3983 | (vip-goto-mark-subr char com nil))) | |
3984 | ||
3985 | (defun vip-goto-mark-and-skip-white (arg) | |
3986 | "Go to mark and skip to first non-white character on line." | |
3987 | (interactive "P") | |
3988 | (let ((char (read-char)) | |
3989 | (com (vip-getCom arg))) | |
3990 | (vip-goto-mark-subr char com t))) | |
3991 | ||
3992 | (defun vip-goto-mark-subr (char com skip-white) | |
3993 | (if (eobp) | |
3994 | (if (bobp) | |
3995 | (error "Empty buffer") | |
3996 | (backward-char 1))) | |
3997 | (cond ((vip-valid-register char '(letter)) | |
3998 | (let* ((buff (current-buffer)) | |
3999 | (reg (1+ (- char ?a))) | |
4000 | (text-marker (get-register reg))) | |
4001 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
4002 | (if (not (vip-valid-marker text-marker)) | |
4003 | (error vip-EmptyTextmarker char)) | |
4004 | (if (and (vip-same-line (point) vip-last-jump) | |
4005 | (= (point) vip-last-jump-ignore)) | |
4006 | (push-mark vip-last-jump t) | |
4007 | (push-mark nil t)) ; no msg | |
4008 | (vip-register-to-point reg) | |
4009 | (setq vip-last-jump (point-marker)) | |
4010 | (cond (skip-white | |
4011 | (back-to-indentation) | |
4012 | (setq vip-last-jump-ignore (point)))) | |
4013 | (if com | |
4014 | (if (equal buff (current-buffer)) | |
4015 | (vip-execute-com (if skip-white | |
4016 | 'vip-goto-mark-and-skip-white | |
4017 | 'vip-goto-mark) | |
4018 | nil com) | |
4019 | (switch-to-buffer buff) | |
4020 | (goto-char vip-com-point) | |
4021 | (vip-change-state-to-vi) | |
4022 | (error ""))))) | |
4023 | ((and (not skip-white) (= char ?`)) | |
4024 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
4025 | (if (and (vip-same-line (point) vip-last-jump) | |
4026 | (= (point) vip-last-jump-ignore)) | |
4027 | (goto-char vip-last-jump)) | |
4028 | (if (null (mark t)) (error "Mark is not set in this buffer")) | |
4029 | (if (= (point) (mark t)) (pop-mark)) | |
4030 | (exchange-point-and-mark) | |
4031 | (setq vip-last-jump (point-marker) | |
4032 | vip-last-jump-ignore 0) | |
4033 | (if com (vip-execute-com 'vip-goto-mark nil com))) | |
4034 | ((and skip-white (= char ?')) | |
4035 | (if com (vip-move-marker-locally 'vip-com-point (point))) | |
4036 | (if (and (vip-same-line (point) vip-last-jump) | |
4037 | (= (point) vip-last-jump-ignore)) | |
4038 | (goto-char vip-last-jump)) | |
4039 | (if (= (point) (mark t)) (pop-mark)) | |
4040 | (exchange-point-and-mark) | |
4041 | (setq vip-last-jump (point)) | |
4042 | (back-to-indentation) | |
4043 | (setq vip-last-jump-ignore (point)) | |
4044 | (if com (vip-execute-com 'vip-goto-mark-and-skip-white nil com))) | |
4045 | (t (error vip-InvalidTextmarker char)))) | |
4046 | ||
4047 | (defun vip-insert-tab () | |
4048 | (interactive) | |
4049 | (insert-tab)) | |
4050 | ||
4051 | (defun vip-exchange-point-and-mark () | |
4052 | (interactive) | |
4053 | (exchange-point-and-mark) | |
4054 | (back-to-indentation)) | |
4055 | ||
4056 | ;; Input Mode Indentation | |
4057 | ||
4058 | ;; Returns t, if the string before point matches the regexp STR. | |
4059 | (defsubst vip-looking-back (str) | |
4060 | (and (save-excursion (re-search-backward str nil t)) | |
4061 | (= (point) (match-end 0)))) | |
4062 | ||
4063 | ||
4064 | (defun vip-forward-indent () | |
4065 | "Indent forward -- `C-t' in Vi." | |
4066 | (interactive) | |
4067 | (setq vip-cted t) | |
4068 | (indent-to (+ (current-column) vip-shift-width))) | |
4069 | ||
4070 | (defun vip-backward-indent () | |
4071 | "Backtab, C-d in VI" | |
4072 | (interactive) | |
4073 | (if vip-cted | |
4074 | (let ((p (point)) (c (current-column)) bol (indent t)) | |
4075 | (if (vip-looking-back "[0^]") | |
4076 | (progn | |
4077 | (if (eq ?^ (preceding-char)) | |
4078 | (setq vip-preserve-indent t)) | |
4079 | (delete-backward-char 1) | |
4080 | (setq p (point)) | |
4081 | (setq indent nil))) | |
4082 | (save-excursion | |
4083 | (beginning-of-line) | |
4084 | (setq bol (point))) | |
4085 | (if (re-search-backward "[^ \t]" bol 1) (forward-char)) | |
4086 | (delete-region (point) p) | |
4087 | (if indent | |
4088 | (indent-to (- c vip-shift-width))) | |
4089 | (if (or (bolp) (vip-looking-back "[^ \t]")) | |
4090 | (setq vip-cted nil))))) | |
4091 | ||
4092 | (defun vip-autoindent () | |
4093 | "Auto Indentation, Vi-style." | |
4094 | (interactive) | |
4095 | (let ((col (current-indentation))) | |
4096 | (if abbrev-mode (expand-abbrev)) | |
4097 | (if vip-preserve-indent | |
4098 | (setq vip-preserve-indent nil) | |
4099 | (setq vip-current-indent col)) | |
4100 | ;; don't leave whitespace lines around | |
4101 | (if (memq last-command | |
4102 | '(vip-autoindent | |
4103 | vip-open-line vip-Open-line | |
4104 | vip-replace-state-exit-cmd)) | |
4105 | (indent-to-left-margin)) | |
4106 | ;; use \n instead of newline, or else <Return> will move the insert point | |
4107 | ;;(newline 1) | |
4108 | (insert "\n") | |
4109 | (if vip-auto-indent | |
4110 | (progn | |
4111 | (setq vip-cted t) | |
4112 | (if vip-electric-mode | |
4113 | (indent-according-to-mode) | |
4114 | (indent-to vip-current-indent)) | |
4115 | )) | |
4116 | )) | |
4117 | ||
4118 | ||
4119 | ;; Viewing registers | |
4120 | ||
4121 | (defun vip-ket-function (arg) | |
4122 | "Function called by \], the ket. View registers and call \]\]." | |
4123 | (interactive "P") | |
4124 | (let ((reg (read-char))) | |
4125 | (cond ((vip-valid-register reg '(letter Letter)) | |
4126 | (view-register (downcase reg))) | |
4127 | ((vip-valid-register reg '(digit)) | |
4128 | (let ((text (current-kill (- reg ?1) 'do-not-rotate))) | |
4129 | (save-excursion | |
4130 | (set-buffer (get-buffer-create "*Output*")) | |
4131 | (delete-region (point-min) (point-max)) | |
4132 | (insert (format "Register %c contains the string:\n" reg)) | |
4133 | (insert text) | |
4134 | (goto-char (point-min))) | |
4135 | (display-buffer "*Output*"))) | |
4136 | ((= ?\] reg) | |
4137 | (vip-next-heading arg)) | |
4138 | (t (error | |
4139 | vip-InvalidRegister reg))))) | |
4140 | ||
4141 | (defun vip-brac-function (arg) | |
4142 | "Function called by \[, the brac. View textmarkers and call \[\[" | |
4143 | (interactive "P") | |
4144 | (let ((reg (read-char))) | |
4145 | (cond ((= ?\[ reg) | |
4146 | (vip-prev-heading arg)) | |
4147 | ((= ?\] reg) | |
4148 | (vip-heading-end arg)) | |
4149 | ((vip-valid-register reg '(letter)) | |
4150 | (let* ((val (get-register (1+ (- reg ?a)))) | |
4151 | (buf (if (not val) | |
4152 | (error vip-EmptyTextmarker reg) | |
4153 | (marker-buffer val))) | |
4154 | (pos (marker-position val)) | |
4155 | line-no text (s pos) (e pos)) | |
4156 | (save-excursion | |
4157 | (set-buffer (get-buffer-create "*Output*")) | |
4158 | (delete-region (point-min) (point-max)) | |
4159 | (if (and buf pos) | |
4160 | (progn | |
4161 | (save-excursion | |
4162 | (set-buffer buf) | |
4163 | (setq line-no (1+ (count-lines (point-min) val))) | |
4164 | (goto-char pos) | |
4165 | (beginning-of-line) | |
4166 | (if (re-search-backward "[^ \t]" nil t) | |
4167 | (progn | |
4168 | (beginning-of-line) | |
4169 | (setq s (point)))) | |
4170 | (goto-char pos) | |
4171 | (forward-line 1) | |
4172 | (if (re-search-forward "[^ \t]" nil t) | |
4173 | (progn | |
4174 | (end-of-line) | |
4175 | (setq e (point)))) | |
4176 | (setq text (buffer-substring s e)) | |
4177 | (setq text (format "%s<%c>%s" | |
4178 | (substring text 0 (- pos s)) | |
4179 | reg (substring text (- pos s))))) | |
4180 | (insert | |
4181 | (format | |
4182 | "Textmarker `%c' is in buffer `%s' at line %d.\n" | |
4183 | reg (buffer-name buf) line-no)) | |
4184 | (insert (format "Here is some text around %c:\n\n %s" | |
4185 | reg text))) | |
4186 | (insert (format vip-EmptyTextmarker reg))) | |
4187 | (goto-char (point-min))) | |
4188 | (display-buffer "*Output*"))) | |
4189 | (t (error vip-InvalidTextmarker reg))))) | |
4190 | ||
4191 | ||
4192 | \f | |
4193 | ;; commands in insertion mode | |
4194 | ||
4195 | (defun vip-delete-backward-word (arg) | |
4196 | "Delete previous word." | |
4197 | (interactive "p") | |
4198 | (save-excursion | |
4199 | (push-mark nil t) | |
4200 | (backward-word arg) | |
4201 | (delete-region (point) (mark t)) | |
4202 | (pop-mark))) | |
4203 | ||
4204 | ||
4205 | (defun vip-set-expert-level (&optional dont-change-unless) | |
4206 | "Sets the expert level for a Viper user. | |
4207 | Can be called interactively to change (temporarily or permanently) the | |
4208 | current expert level. | |
4209 | ||
4210 | The optional argument DONT-CHANGE-UNLESS if not nil, says that | |
4211 | the level should not be changed, unless its current value is | |
4212 | meaningless (i.e., not one of 1,2,3,4,5). | |
4213 | ||
4214 | User level determines the setting of Viper variables that are most | |
4215 | sensitive for VI-style look-and-feel." | |
4216 | ||
4217 | (interactive) | |
4218 | ||
4219 | (if (not (natnump vip-expert-level)) (setq vip-expert-level 0)) | |
4220 | ||
4221 | (save-window-excursion | |
4222 | (delete-other-windows) | |
4223 | ;; if 0 < vip-expert-level < vip-max-expert-level | |
4224 | ;; & dont-change-unless = t -- use it; else ask | |
4225 | (vip-ask-level dont-change-unless)) | |
4226 | ||
4227 | (setq vip-always t | |
4228 | vip-ex-style-motion t | |
4229 | vip-ex-style-editing-in-insert t | |
4230 | vip-want-ctl-h-help nil) | |
4231 | ||
4232 | (cond ((eq vip-expert-level 1) ; novice or beginner | |
4233 | (global-set-key ; in emacs-state | |
4234 | vip-toggle-key | |
4235 | (if (vip-window-display-p) 'vip-iconify 'suspend-emacs)) | |
4236 | (setq vip-no-multiple-ESC t | |
4237 | vip-re-search t | |
4238 | vip-vi-style-in-minibuffer t | |
4239 | vip-search-wrap-around-t t | |
4240 | vip-want-emacs-keys-in-vi nil | |
4241 | vip-want-emacs-keys-in-insert nil)) | |
4242 | ||
4243 | ((and (> vip-expert-level 1) (< vip-expert-level 5)) | |
4244 | ;; intermediate to guru | |
4245 | (setq vip-no-multiple-ESC (if (vip-window-display-p) t 'twice) | |
4246 | vip-want-emacs-keys-in-vi t | |
4247 | vip-want-emacs-keys-in-insert (> vip-expert-level 2)) | |
4248 | ||
4249 | (if (eq vip-expert-level 4) ; respect user's ex-style motions | |
4250 | ; and vip-no-multiple-ESC | |
4251 | (progn | |
4252 | (setq-default vip-ex-style-editing-in-insert | |
4253 | (cdr (assoc 'vip-ex-style-editing-in-insert | |
4254 | vip-saved-user-settings)) | |
4255 | vip-ex-style-motion | |
4256 | (cdr (assoc 'vip-ex-style-motion | |
4257 | vip-saved-user-settings))) | |
4258 | (setq vip-ex-style-motion | |
4259 | (cdr (assoc 'vip-ex-style-motion vip-saved-user-settings)) | |
4260 | vip-ex-style-editing-in-insert | |
4261 | (cdr (assoc 'vip-ex-style-editing-in-insert | |
4262 | vip-saved-user-settings)) | |
4263 | vip-re-search | |
4264 | (cdr (assoc 'vip-re-search vip-saved-user-settings)) | |
4265 | vip-no-multiple-ESC | |
4266 | (cdr (assoc 'vip-no-multiple-ESC | |
4267 | vip-saved-user-settings)))))) | |
4268 | ||
4269 | ;; A wizard!! | |
4270 | ;; Ideally, if 5 is selected, a buffer should pop up to let the | |
4271 | ;; user toggle the values of variables. | |
4272 | (t (setq-default vip-ex-style-editing-in-insert | |
4273 | (cdr (assoc 'vip-ex-style-editing-in-insert | |
4274 | vip-saved-user-settings)) | |
4275 | vip-ex-style-motion | |
4276 | (cdr (assoc 'vip-ex-style-motion | |
4277 | vip-saved-user-settings))) | |
4278 | (setq vip-want-ctl-h-help | |
4279 | (cdr (assoc 'vip-want-ctl-h-help vip-saved-user-settings)) | |
4280 | vip-always | |
4281 | (cdr (assoc 'vip-always vip-saved-user-settings)) | |
4282 | vip-no-multiple-ESC | |
4283 | (cdr (assoc 'vip-no-multiple-ESC vip-saved-user-settings)) | |
4284 | vip-ex-style-motion | |
4285 | (cdr (assoc 'vip-ex-style-motion vip-saved-user-settings)) | |
4286 | vip-ex-style-editing-in-insert | |
4287 | (cdr (assoc 'vip-ex-style-editing-in-insert | |
4288 | vip-saved-user-settings)) | |
4289 | vip-re-search | |
4290 | (cdr (assoc 'vip-re-search vip-saved-user-settings)) | |
4291 | vip-want-emacs-keys-in-vi | |
4292 | (cdr (assoc 'vip-want-emacs-keys-in-vi | |
4293 | vip-saved-user-settings)) | |
4294 | vip-want-emacs-keys-in-insert | |
4295 | (cdr (assoc 'vip-want-emacs-keys-in-insert | |
4296 | vip-saved-user-settings))))) | |
4297 | (vip-set-mode-vars-for vip-current-state) | |
4298 | (if (or vip-always | |
4299 | (and (> vip-expert-level 0) (> 5 vip-expert-level))) | |
4300 | (vip-set-hooks))) | |
4301 | ||
4302 | ;; Ask user expert level. | |
4303 | (defun vip-ask-level (dont-change-unless) | |
4304 | (let ((ask-buffer " *vip-ask-level*") | |
4305 | level-changed repeated) | |
4306 | (save-window-excursion | |
4307 | (switch-to-buffer ask-buffer) | |
4308 | ||
4309 | (or (eq this-command 'vip-set-expert-level) | |
4310 | (and | |
4311 | (<= vip-expert-level vip-max-expert-level) | |
4312 | (>= vip-expert-level 1)) | |
4313 | (progn | |
4314 | (insert " | |
4315 | ||
4316 | *** Important Notice for VIP users*** | |
4317 | ||
4318 | This is VIPER | |
4319 | ||
4320 | @joke | |
4321 | Viper Is a Package for Emacs Rebels, | |
4322 | a VI Plan for Emacs Rescue, | |
4323 | and a venomous VI PERil. | |
4324 | @end joke | |
4325 | ||
4326 | Technically speaking, Viper is a new Vi emulator that replaces | |
4327 | the old VIP package. | |
4328 | ||
4329 | Viper emulates Vi much better than VIP. It also significantly | |
4330 | extends and improves upon Vi in many useful ways. | |
4331 | ||
4332 | Although many VIP settings in your ~/.vip are compatible with Viper, | |
4333 | you may have to change some of them. Please refer to the documentation, | |
4334 | which can be obtained by executing | |
4335 | ||
4336 | :help | |
4337 | ||
4338 | when Viper is in Vi state. | |
4339 | ||
4340 | If you will be so lucky as to find a bug, report it via the command | |
4341 | ||
4342 | :submitReport | |
4343 | ||
4344 | Type any key to continue... ") | |
4345 | ||
4346 | (read-char) | |
4347 | (erase-buffer))) | |
4348 | ||
4349 | (while (or (> vip-expert-level vip-max-expert-level) | |
4350 | (< vip-expert-level 1) | |
4351 | (null dont-change-unless)) | |
4352 | (erase-buffer) | |
4353 | (if repeated | |
4354 | (progn | |
4355 | (message "Invalid user level") | |
4356 | (beep 1)) | |
4357 | (setq repeated t)) | |
4358 | (setq dont-change-unless t | |
4359 | level-changed t) | |
4360 | (insert " | |
4361 | Please specify your level of familiarity with the venomous VI PERil | |
4362 | (and the VI Plan for Emacs Rescue). | |
4363 | You can change it at any time by typing `M-x vip-set-expert-level RET' | |
4364 | ||
4365 | 1 -- BEGINNER: Almost all Emacs features are suppressed. | |
4366 | Feels almost like straight Vi. File name completion and | |
4367 | command history in the minibuffer are thrown in as a bonus. | |
4368 | To use Emacs productively, you must reach level 3 or higher. | |
4369 | 2 -- MASTER: C-c now has its standard Emacs meaning in Vi command state, | |
4370 | so most Emacs commands can be used when Viper is in Vi state. | |
4371 | Good progress---you are well on the way to level 3! | |
4372 | 3 -- GRAND MASTER: Like 3, but most Emacs commands are available also | |
4373 | in Viper's insert state. | |
4374 | 4 -- GURU: Like 3, but user settings are respected for vip-no-multiple-ESC, | |
4375 | vip-re-search, vip-ex-style-motion, & vip-ex-style-editing-in-insert | |
4376 | variables. Adjust these settings to your taste. | |
4377 | 5 -- WIZARD: Like 4, but user settings are also respected for vip-always, | |
4378 | vip-want-ctl-h-help, vip-want-emacs-keys-in-vi, and | |
4379 | vip-want-emacs-keys-in-insert. Adjust these to your taste. | |
4380 | ||
4381 | Please, specify your level now: ") | |
4382 | ||
4383 | (setq vip-expert-level (- (vip-read-char-exclusive) ?0)) | |
4384 | ) ; end while | |
4385 | ||
4386 | ;; tell the user if level was changed | |
4387 | (and level-changed | |
4388 | (progn | |
4389 | (insert | |
4390 | (format "\n\n\n\n\n\t\tYou have selected user level %d" | |
4391 | vip-expert-level)) | |
4392 | (if (y-or-n-p "Do you wish to make this change permanent? ") | |
4393 | ;; save the setting for vip-expert-level | |
4394 | (vip-save-setting | |
4395 | 'vip-expert-level | |
4396 | (format "Saving user level %d ..." vip-expert-level) | |
4397 | vip-custom-file-name)) | |
4398 | )) | |
4399 | (bury-buffer) ; remove ask-buffer from screen | |
4400 | (message "") | |
4401 | ))) | |
4402 | ||
4403 | ||
4404 | (defun vip-nil () | |
4405 | (interactive) | |
4406 | (beep 1)) | |
4407 | ||
4408 | ||
4409 | ;; if ENFORCE-BUFFER is not nil, error if CHAR is a marker in another buffer | |
4410 | (defun vip-register-to-point (char &optional enforce-buffer) | |
4411 | "Like jump-to-register, but switches to another buffer in another window." | |
4412 | (interactive "cViper register to point: ") | |
4413 | (let ((val (get-register char))) | |
4414 | (cond | |
4415 | ((and (fboundp 'frame-configuration-p) | |
4416 | (frame-configuration-p val)) | |
4417 | (set-frame-configuration val)) | |
4418 | ((window-configuration-p val) | |
4419 | (set-window-configuration val)) | |
4420 | ((vip-valid-marker val) | |
4421 | (if (and enforce-buffer | |
4422 | (not (equal (current-buffer) (marker-buffer val)))) | |
4423 | (error (concat vip-EmptyTextmarker " in this buffer") | |
4424 | (1- (+ char ?a)))) | |
4425 | (pop-to-buffer (marker-buffer val)) | |
4426 | (goto-char val)) | |
4427 | ((and (consp val) (eq (car val) 'file)) | |
4428 | (find-file (cdr val))) | |
4429 | (t | |
4430 | (error vip-EmptyTextmarker (1- (+ char ?a))))))) | |
4431 | ||
4432 | ||
4433 | (defun vip-save-kill-buffer () | |
4434 | "Save then kill current buffer. " | |
4435 | (interactive) | |
4436 | (if (< vip-expert-level 2) | |
4437 | (save-buffers-kill-emacs) | |
4438 | (save-buffer) | |
4439 | (kill-buffer (current-buffer)))) | |
4440 | ||
4441 | ||
4442 | \f | |
4443 | ;;; Bug Report | |
4444 | ||
4445 | (defun vip-submit-report () | |
4446 | "Submit bug report on Viper." | |
4447 | (interactive) | |
4448 | (let ((reporter-prompt-for-summary-p t) | |
4449 | (vip-device-type (vip-device-type)) | |
4450 | color-display-p frame-parameters | |
4451 | minibuffer-emacs-face minibuffer-vi-face minibuffer-insert-face | |
4452 | varlist salutation window-config) | |
4453 | ||
4454 | ;; If mode info is needed, add variable to `let' and then set it below, | |
4455 | ;; like we did with color-display-p. | |
4456 | (setq color-display-p (if (vip-window-display-p) | |
4457 | (vip-color-display-p) | |
4458 | 'non-x) | |
4459 | minibuffer-vi-face (if (vip-has-face-support-p) | |
4460 | (vip-get-face vip-minibuffer-vi-face) | |
4461 | 'non-x) | |
4462 | minibuffer-insert-face (if (vip-has-face-support-p) | |
4463 | (vip-get-face vip-minibuffer-insert-face) | |
4464 | 'non-x) | |
4465 | minibuffer-emacs-face (if (vip-has-face-support-p) | |
4466 | (vip-get-face vip-minibuffer-emacs-face) | |
4467 | 'non-x) | |
4468 | frame-parameters (if (fboundp 'frame-parameters) | |
4469 | (frame-parameters (selected-frame)))) | |
4470 | ||
4471 | (setq varlist (list 'vip-vi-minibuffer-minor-mode | |
4472 | 'vip-insert-minibuffer-minor-mode | |
4473 | 'vip-vi-intercept-minor-mode | |
4474 | 'vip-vi-local-user-minor-mode | |
4475 | 'vip-vi-kbd-minor-mode | |
4476 | 'vip-vi-global-user-minor-mode | |
4477 | 'vip-vi-state-modifier-minor-mode | |
4478 | 'vip-vi-diehard-minor-mode | |
4479 | 'vip-vi-basic-minor-mode | |
4480 | 'vip-replace-minor-mode | |
4481 | 'vip-insert-intercept-minor-mode | |
4482 | 'vip-insert-local-user-minor-mode | |
4483 | 'vip-insert-kbd-minor-mode | |
4484 | 'vip-insert-global-user-minor-mode | |
4485 | 'vip-insert-state-modifier-minor-mode | |
4486 | 'vip-insert-diehard-minor-mode | |
4487 | 'vip-insert-basic-minor-mode | |
4488 | 'vip-emacs-intercept-minor-mode | |
4489 | 'vip-emacs-local-user-minor-mode | |
4490 | 'vip-emacs-kbd-minor-mode | |
4491 | 'vip-emacs-global-user-minor-mode | |
4492 | 'vip-emacs-state-modifier-minor-mode | |
4493 | 'vip-automatic-iso-accents | |
4494 | 'vip-want-emacs-keys-in-insert | |
4495 | 'vip-want-emacs-keys-in-vi | |
4496 | 'vip-keep-point-on-undo | |
4497 | 'vip-no-multiple-ESC | |
4498 | 'vip-ESC-key | |
4499 | 'vip-want-ctl-h-help | |
4500 | 'vip-ex-style-editing-in-insert | |
4501 | 'vip-delete-backwards-in-replace | |
4502 | 'vip-vi-style-in-minibuffer | |
4503 | 'vip-vi-state-hook | |
4504 | 'vip-insert-state-hook | |
4505 | 'vip-replace-state-hook | |
4506 | 'vip-emacs-state-hook | |
4507 | 'ex-cycle-other-window | |
4508 | 'ex-cycle-through-non-files | |
4509 | 'vip-expert-level | |
4510 | 'major-mode | |
4511 | 'vip-device-type | |
4512 | 'color-display-p | |
4513 | 'frame-parameters | |
4514 | 'minibuffer-vi-face | |
4515 | 'minibuffer-insert-face | |
4516 | 'minibuffer-emacs-face | |
4517 | )) | |
4518 | (setq salutation " | |
4519 | Congratulations! You may have unearthed a bug in Viper! | |
4520 | Please mail a concise, accurate summary of the problem to the address above. | |
4521 | ||
4522 | -------------------------------------------------------------------") | |
4523 | (setq window-config (current-window-configuration)) | |
4524 | (with-output-to-temp-buffer " *vip-info*" | |
4525 | (switch-to-buffer " *vip-info*") | |
4526 | (delete-other-windows) | |
4527 | (princ " | |
4528 | PLEASE FOLLOW THESE PROCEDURES | |
4529 | ------------------------------ | |
4530 | ||
4531 | Before reporting a bug, please verify that it is related to Viper, and is | |
4532 | not cause by other packages you are using. | |
4533 | ||
4534 | Don't report compilation warnings, unless you are certain that there is a | |
4535 | problem. These warnings are normal and unavoidable. | |
4536 | ||
4537 | Please note that users should not modify variables and keymaps other than | |
4538 | those advertised in the manual. Such `customization' is likely to crash | |
4539 | Viper, as it would any other improperly customized Emacs package. | |
4540 | ||
4541 | If you are reporting an error message received while executing one of the | |
4542 | Viper commands, type: | |
4543 | ||
4544 | M-x set-variable <Return> debug-on-error <Return> t <Return> | |
4545 | ||
4546 | Then reproduce the error. The above command will cause Emacs to produce a | |
4547 | back trace of the execution that leads to the error. Please include this | |
4548 | trace in your bug report. | |
4549 | ||
4550 | If you believe that one of Viper's commands goes into an infinite loop | |
4551 | \(e.g., Emacs freezes\), type: | |
4552 | ||
4553 | M-x set-variable <Return> debug-on-quit <Return> t <Return> | |
4554 | ||
4555 | Then reproduce the problem. Wait for a few seconds, then type C-g to abort | |
4556 | the current command. Include the resulting back trace in the bug report. | |
4557 | ||
4558 | Mail anyway (y or n)? ") | |
4559 | (if (y-or-n-p "Mail anyway? ") | |
4560 | () | |
4561 | (set-window-configuration window-config) | |
4562 | (error "Bug report aborted"))) | |
4563 | ||
4564 | (require 'reporter) | |
4565 | (set-window-configuration window-config) | |
4566 | ||
4567 | (reporter-submit-bug-report "kifer@cs.sunysb.edu" | |
4568 | (vip-version) | |
4569 | varlist | |
4570 | nil 'delete-other-windows | |
4571 | salutation) | |
4572 | )) | |
4573 | ||
4574 | ||
4575 | ||
4576 | ||
4577 | ;; Smoothes out the difference between Emacs' unread-command-events | |
4578 | ;; and XEmacs unread-command-event. Arg is a character, an event, a list of | |
4579 | ;; events or a sequence of keys. | |
4580 | ;; | |
4581 | ;; Due to the way unread-command-events in Emacs (not XEmacs), a non-event | |
4582 | ;; symbol in unread-command-events list may cause Emacs to turn this symbol | |
4583 | ;; into an event. Below, we delete nil from event lists, since nil is the most | |
4584 | ;; common symbol that might appear in this wrong context. | |
4585 | (defun vip-set-unread-command-events (arg) | |
4586 | (if vip-emacs-p | |
4587 | (setq | |
4588 | unread-command-events | |
4589 | (let ((new-events | |
4590 | (cond ((eventp arg) (list arg)) | |
4591 | ((listp arg) arg) | |
4592 | ((sequencep arg) | |
4593 | (listify-key-sequence arg)) | |
4594 | (t (error | |
4595 | "vip-set-unread-command-events: Invalid argument, %S" | |
4596 | arg))))) | |
4597 | (if (not (eventp nil)) | |
4598 | (setq new-events (delq nil new-events))) | |
4599 | (append new-events unread-command-events))) | |
4600 | ;; XEmacs | |
4601 | (setq | |
4602 | unread-command-events | |
4603 | (append | |
4604 | (cond ((vip-characterp arg) (list (character-to-event arg))) | |
4605 | ((eventp arg) (list arg)) | |
4606 | ((stringp arg) (mapcar 'character-to-event arg)) | |
4607 | ((vectorp arg) (append arg nil)) ; turn into list | |
4608 | ((listp arg) (vip-eventify-list-xemacs arg)) | |
4609 | (t (error | |
4610 | "vip-set-unread-command-events: Invalid argument, %S" arg))) | |
4611 | unread-command-events)))) | |
4612 | ||
4613 | ;; list is assumed to be a list of events of characters | |
4614 | (defun vip-eventify-list-xemacs (lis) | |
4615 | (mapcar | |
4616 | (function (lambda (elt) | |
4617 | (cond ((vip-characterp elt) (character-to-event elt)) | |
4618 | ((eventp elt) elt) | |
4619 | (t (error | |
4620 | "vip-eventify-list-xemacs: can't convert to event, %S" | |
4621 | elt))))) | |
4622 | lis)) | |
4623 | ||
4624 | ||
4625 | ||
4626 | ;;; viper-cmd.el ends here |