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9b70a748 MK |
1 | ;;; viper-init.el --- some common definitions for Viper |
2 | ||
ab422c4d | 3 | ;; Copyright (C) 1997-2013 Free Software Foundation, Inc. |
9b70a748 | 4 | |
50a07e18 | 5 | ;; Author: Michael Kifer <kifer@cs.stonybrook.edu> |
bd78fa1d | 6 | ;; Package: viper |
02f34c70 | 7 | |
9b70a748 MK |
8 | ;; This file is part of GNU Emacs. |
9 | ||
ed0f493f | 10 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
9b70a748 | 11 | ;; it under the terms of the GNU General Public License as published by |
ed0f493f GM |
12 | ;; the Free Software Foundation, either version 3 of the License, or |
13 | ;; (at your option) any later version. | |
9b70a748 MK |
14 | |
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
ed0f493f | 21 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
9b70a748 | 22 | |
60370d40 PJ |
23 | ;;; Commentary: |
24 | ||
25 | ;;; Code: | |
9b70a748 | 26 | |
9b70a748 MK |
27 | ;; compiler pacifier |
28 | (defvar mark-even-if-inactive) | |
34317da2 MK |
29 | (defvar quail-mode) |
30 | (defvar iso-accents-mode) | |
31 | (defvar viper-current-state) | |
726e270f | 32 | (defvar viper-version) |
1e70790f | 33 | (defvar viper-expert-level) |
2eb4bdca MK |
34 | (defvar current-input-method) |
35 | (defvar default-input-method) | |
36 | (defvar describe-current-input-method-function) | |
50a07e18 | 37 | (defvar bar-cursor) |
50a07e18 | 38 | (defvar cursor-type) |
9b70a748 MK |
39 | ;; end pacifier |
40 | ||
726e270f MK |
41 | |
42 | ;; Viper version | |
43 | (defun viper-version () | |
44 | (interactive) | |
f1097063 | 45 | (message "Viper version is %s" viper-version)) |
726e270f | 46 | |
9b70a748 | 47 | ;; Tell whether we are running as a window application or on a TTY |
50a07e18 | 48 | |
8626cfa2 | 49 | (defsubst viper-device-type () |
ce8fc80b GM |
50 | (if (featurep 'xemacs) |
51 | (device-type (selected-device)) | |
52 | window-system)) | |
50a07e18 | 53 | |
3f9526a3 MK |
54 | (defun viper-color-display-p () |
55 | (condition-case nil | |
ce8fc80b GM |
56 | (if (featurep 'xemacs) |
57 | (eq (device-class (selected-device)) 'color) | |
58 | (display-color-p)) | |
3f9526a3 MK |
59 | (error nil))) |
60 | ||
9b70a748 | 61 | ;; in XEmacs: device-type is tty on tty and stream in batch. |
8626cfa2 MK |
62 | (defun viper-window-display-p () |
63 | (and (viper-device-type) (not (memq (viper-device-type) '(tty stream pc))))) | |
9b70a748 | 64 | |
72bc50c0 GM |
65 | (defcustom viper-ms-style-os-p |
66 | (memq system-type (if (featurep 'emacs) '(ms-dos windows-nt) | |
67 | '(ms-dos windows-nt windows-95))) | |
68 | "Non-nil if Emacs is running under an MS-style OS: MS-DOS, or MS-Windows." | |
1e70790f MK |
69 | :type 'boolean |
70 | :tag "Is it Microsoft-made OS?" | |
8e41a31c | 71 | :group 'viper-misc) |
1e70790f | 72 | |
ac64a728 MK |
73 | (defcustom viper-suppress-input-method-change-message nil |
74 | "If t, the message notifying about changes in the input method is not displayed. | |
75 | Normally, a message is displayed each time on enters the vi, insert or replace | |
76 | state." | |
77 | :type 'boolean | |
78 | :group 'viper-misc) | |
79 | ||
8626cfa2 | 80 | (defcustom viper-force-faces nil |
9b70a748 | 81 | "If t, Viper will think that it is running on a display that supports faces. |
1e70790f MK |
82 | This is provided as a temporary relief for users of graphics-capable terminals |
83 | that Viper doesn't know about. | |
84 | In all likelihood, you don't need to bother with this setting." | |
85 | :type 'boolean | |
8e41a31c | 86 | :group 'viper-highlighting) |
9b70a748 | 87 | |
8626cfa2 MK |
88 | (defun viper-has-face-support-p () |
89 | (cond ((viper-window-display-p)) | |
90 | (viper-force-faces) | |
3f9526a3 | 91 | ((viper-color-display-p)) |
e83d1fe8 DN |
92 | ((featurep 'emacs) (memq (viper-device-type) '(pc))) |
93 | ((featurep 'xemacs) (memq (viper-device-type) '(tty pc))))) | |
9b70a748 MK |
94 | |
95 | \f | |
96 | ;;; Macros | |
97 | ||
8626cfa2 | 98 | (defmacro viper-deflocalvar (var default-value &optional documentation) |
d5c31f1d VØ |
99 | "Define VAR as a buffer-local variable. |
100 | DEFAULT-VALUE is the default value, and DOCUMENTATION is the | |
101 | docstring. The variable becomes buffer-local whenever set." | |
102 | (declare (indent defun)) | |
f1097063 SS |
103 | `(progn |
104 | (defvar ,var ,default-value | |
105 | ,(format "%s\n\(buffer local\)" documentation)) | |
106 | (make-variable-buffer-local ',var))) | |
9b70a748 | 107 | |
34317da2 MK |
108 | ;; (viper-loop COUNT BODY) Execute BODY COUNT times. |
109 | (defmacro viper-loop (count &rest body) | |
d5c31f1d | 110 | (declare (indent defun)) |
f1097063 SS |
111 | `(let ((count ,count)) |
112 | (while (> count 0) | |
113 | ,@body | |
114 | (setq count (1- count))))) | |
9b70a748 | 115 | |
8626cfa2 | 116 | (defmacro viper-buffer-live-p (buf) |
f1097063 SS |
117 | `(and ,buf (get-buffer ,buf) (buffer-name (get-buffer ,buf)))) |
118 | ||
9b70a748 | 119 | ;; return buffer-specific macro definition, given a full macro definition |
8626cfa2 | 120 | (defmacro viper-kbd-buf-alist (macro-elt) |
f1097063 | 121 | `(nth 1 ,macro-elt)) |
9b70a748 | 122 | ;; get a pair: (curr-buffer . macro-definition) |
8626cfa2 | 123 | (defmacro viper-kbd-buf-pair (macro-elt) |
f1097063 | 124 | `(assoc (buffer-name) (viper-kbd-buf-alist ,macro-elt))) |
9b70a748 | 125 | ;; get macro definition for current buffer |
8626cfa2 | 126 | (defmacro viper-kbd-buf-definition (macro-elt) |
f1097063 SS |
127 | `(cdr (viper-kbd-buf-pair ,macro-elt))) |
128 | ||
9b70a748 | 129 | ;; return mode-specific macro definitions, given a full macro definition |
8626cfa2 | 130 | (defmacro viper-kbd-mode-alist (macro-elt) |
f1097063 | 131 | `(nth 2 ,macro-elt)) |
9b70a748 | 132 | ;; get a pair: (major-mode . macro-definition) |
8626cfa2 | 133 | (defmacro viper-kbd-mode-pair (macro-elt) |
f1097063 | 134 | `(assoc major-mode (viper-kbd-mode-alist ,macro-elt))) |
9b70a748 | 135 | ;; get macro definition for the current major mode |
8626cfa2 | 136 | (defmacro viper-kbd-mode-definition (macro-elt) |
f1097063 SS |
137 | `(cdr (viper-kbd-mode-pair ,macro-elt))) |
138 | ||
9b70a748 | 139 | ;; return global macro definition, given a full macro definition |
8626cfa2 | 140 | (defmacro viper-kbd-global-pair (macro-elt) |
f1097063 | 141 | `(nth 3 ,macro-elt)) |
9b70a748 | 142 | ;; get global macro definition from an elt of macro-alist |
8626cfa2 | 143 | (defmacro viper-kbd-global-definition (macro-elt) |
f1097063 SS |
144 | `(cdr (viper-kbd-global-pair ,macro-elt))) |
145 | ||
9b70a748 | 146 | ;; last elt of a sequence |
8626cfa2 | 147 | (defsubst viper-seq-last-elt (seq) |
9b70a748 | 148 | (elt seq (1- (length seq)))) |
34317da2 MK |
149 | |
150 | (defsubst viper-string-to-list (string) | |
151 | (append (vconcat string) nil)) | |
152 | ||
153 | (defsubst viper-charlist-to-string (list) | |
154 | (mapconcat 'char-to-string list "")) | |
155 | ||
156 | ;; like char-after/before, but saves typing | |
157 | (defun viper-char-at-pos (direction &optional offset) | |
158 | (or (integerp offset) (setq offset 0)) | |
159 | (if (eq direction 'forward) | |
160 | (char-after (+ (point) offset)) | |
161 | (char-before (- (point) offset)))) | |
f1097063 | 162 | |
9b70a748 | 163 | \f |
8626cfa2 MK |
164 | (defvar viper-minibuffer-overlay-priority 300) |
165 | (defvar viper-replace-overlay-priority 400) | |
166 | (defvar viper-search-overlay-priority 500) | |
f1097063 | 167 | |
9b70a748 MK |
168 | \f |
169 | ;;; Viper minor modes | |
170 | ||
9b70a748 | 171 | ;; Mode for vital things like \e, C-z. |
8626cfa2 | 172 | (viper-deflocalvar viper-vi-intercept-minor-mode nil) |
9b70a748 | 173 | |
8626cfa2 | 174 | (viper-deflocalvar viper-vi-basic-minor-mode nil |
9b70a748 | 175 | "Viper's minor mode for Vi bindings.") |
f1097063 | 176 | |
8626cfa2 | 177 | (viper-deflocalvar viper-vi-local-user-minor-mode nil |
9b70a748 MK |
178 | "Auxiliary minor mode for user-defined local bindings in Vi state.") |
179 | ||
8626cfa2 | 180 | (viper-deflocalvar viper-vi-global-user-minor-mode nil |
9b70a748 MK |
181 | "Auxiliary minor mode for user-defined global bindings in Vi state.") |
182 | ||
8626cfa2 | 183 | (viper-deflocalvar viper-vi-state-modifier-minor-mode nil |
9b70a748 MK |
184 | "Minor mode used to make major-mode-specific modification to Vi state.") |
185 | ||
8626cfa2 | 186 | (viper-deflocalvar viper-vi-diehard-minor-mode nil |
9b70a748 MK |
187 | "This minor mode is in effect when the user wants Viper to be Vi.") |
188 | ||
8626cfa2 | 189 | (viper-deflocalvar viper-vi-kbd-minor-mode nil |
9b70a748 MK |
190 | "Minor mode for Ex command macros in Vi state. |
191 | The corresponding keymap stores key bindings of Vi macros defined with | |
192 | the Ex command :map.") | |
193 | ||
194 | ;; Mode for vital things like \e, C-z. | |
8626cfa2 | 195 | (viper-deflocalvar viper-insert-intercept-minor-mode nil) |
9b70a748 | 196 | |
8626cfa2 | 197 | (viper-deflocalvar viper-insert-basic-minor-mode nil |
9b70a748 MK |
198 | "Viper's minor mode for bindings in Insert mode.") |
199 | ||
8626cfa2 | 200 | (viper-deflocalvar viper-insert-local-user-minor-mode nil |
9b70a748 MK |
201 | "Auxiliary minor mode for buffer-local user-defined bindings in Insert state. |
202 | This is a way to overshadow normal Insert mode bindings locally to certain | |
203 | designated buffers.") | |
204 | ||
8626cfa2 | 205 | (viper-deflocalvar viper-insert-global-user-minor-mode nil |
9b70a748 MK |
206 | "Auxiliary minor mode for global user-defined bindings in Insert state.") |
207 | ||
8626cfa2 | 208 | (viper-deflocalvar viper-insert-state-modifier-minor-mode nil |
9b70a748 MK |
209 | "Minor mode used to make major-mode-specific modification to Insert state.") |
210 | ||
8626cfa2 | 211 | (viper-deflocalvar viper-insert-diehard-minor-mode nil |
9b70a748 | 212 | "Minor mode that simulates Vi very closely. |
40ba43b4 | 213 | Not recommended, except for the novice user.") |
9b70a748 | 214 | |
8626cfa2 | 215 | (viper-deflocalvar viper-insert-kbd-minor-mode nil |
9b70a748 MK |
216 | "Minor mode for Ex command macros Insert state. |
217 | The corresponding keymap stores key bindings of Vi macros defined with | |
218 | the Ex command :map!.") | |
219 | ||
8626cfa2 | 220 | (viper-deflocalvar viper-replace-minor-mode nil |
9b70a748 MK |
221 | "Minor mode in effect in replace state (cw, C, and the like commands).") |
222 | ||
328b4b70 | 223 | ;; Mode for vital things like \C-z and \C-x) This is set to t, when viper-mode |
3af0304a MK |
224 | ;; is invoked. So, any new buffer will have C-z defined as switch to Vi, |
225 | ;; unless we switched states in this buffer | |
328b4b70 | 226 | (viper-deflocalvar viper-emacs-intercept-minor-mode nil) |
f1097063 | 227 | |
328b4b70 | 228 | (viper-deflocalvar viper-emacs-local-user-minor-mode nil |
9b70a748 MK |
229 | "Minor mode for local user bindings effective in Emacs state. |
230 | Users can use it to override Emacs bindings when Viper is in its Emacs | |
f1097063 SS |
231 | state.") |
232 | ||
328b4b70 | 233 | (viper-deflocalvar viper-emacs-global-user-minor-mode nil |
9b70a748 MK |
234 | "Minor mode for global user bindings in effect in Emacs state. |
235 | Users can use it to override Emacs bindings when Viper is in its Emacs | |
f1097063 | 236 | state.") |
9b70a748 | 237 | |
328b4b70 | 238 | (viper-deflocalvar viper-emacs-kbd-minor-mode nil |
9b70a748 MK |
239 | "Minor mode for Vi style macros in Emacs state. |
240 | The corresponding keymap stores key bindings of Vi macros defined with | |
3af0304a | 241 | `viper-record-kbd-macro' command. There is no Ex-level command to do this |
9b70a748 MK |
242 | interactively.") |
243 | ||
328b4b70 | 244 | (viper-deflocalvar viper-emacs-state-modifier-minor-mode nil |
9b70a748 MK |
245 | "Minor mode used to make major-mode-specific modification to Emacs state. |
246 | For instance, a Vi purist may want to bind `dd' in Dired mode to a function | |
247 | that deletes a file.") | |
248 | ||
8626cfa2 | 249 | (viper-deflocalvar viper-vi-minibuffer-minor-mode nil |
9b70a748 MK |
250 | "Minor mode that forces Vi-style when the Minibuffer is in Vi state.") |
251 | ||
8626cfa2 | 252 | (viper-deflocalvar viper-insert-minibuffer-minor-mode nil |
9b70a748 | 253 | "Minor mode that forces Vi-style when the Minibuffer is in Insert state.") |
f1097063 | 254 | |
9b70a748 MK |
255 | \f |
256 | ||
257 | ;; Some common error messages | |
258 | ||
8626cfa2 MK |
259 | (defconst viper-SpuriousText "Spurious text after command" "") |
260 | (defconst viper-BadExCommand "Not an editor command" "") | |
261 | (defconst viper-InvalidCommandArgument "Invalid command argument" "") | |
262 | (defconst viper-NoPrevSearch "No previous search string" "") | |
263 | (defconst viper-EmptyRegister "`%c': Nothing in this register" "") | |
264 | (defconst viper-InvalidRegister "`%c': Invalid register" "") | |
265 | (defconst viper-EmptyTextmarker "`%c': Text marker doesn't point anywhere" "") | |
266 | (defconst viper-InvalidTextmarker "`%c': Invalid text marker" "") | |
267 | (defconst viper-InvalidViCommand "Invalid command" "") | |
268 | (defconst viper-BadAddress "Ill-formed address" "") | |
269 | (defconst viper-FirstAddrExceedsSecond "First address exceeds second" "") | |
270 | (defconst viper-NoFileSpecified "No file specified" "") | |
9b70a748 | 271 | |
f1097063 | 272 | ;; Is t until viper-mode executes for the very first time. |
9b70a748 | 273 | ;; Prevents recursive descend into startup messages. |
8626cfa2 | 274 | (defvar viper-first-time t) |
9b70a748 | 275 | |
8626cfa2 | 276 | (defvar viper-expert-level (if (boundp 'viper-expert-level) viper-expert-level 0) |
9b70a748 | 277 | "User's expert level. |
8626cfa2 MK |
278 | The minor mode viper-vi-diehard-minor-mode is in effect when |
279 | viper-expert-level is 1 or 2 or when viper-want-emacs-keys-in-vi is t. | |
280 | The minor mode viper-insert-diehard-minor-mode is in effect when | |
281 | viper-expert-level is 1 or 2 or if viper-want-emacs-keys-in-insert is t. | |
1e70790f | 282 | Use `M-x viper-set-expert-level' to change this.") |
9b70a748 | 283 | |
3af0304a | 284 | ;; Max expert level supported by Viper. This is NOT a user option. |
9b70a748 | 285 | ;; It is here to make it hard for the user from resetting it. |
1e70790f | 286 | (defconst viper-max-expert-level 5) |
9b70a748 | 287 | |
9b70a748 | 288 | |
34317da2 MK |
289 | ;;; ISO characters and MULE |
290 | ||
291 | ;; If non-nil, ISO accents will be turned on in insert/replace emacs states and | |
292 | ;; turned off in vi-state. For some users, this behavior may be too | |
3af0304a | 293 | ;; primitive. In this case, use insert/emacs/vi state hooks. |
8626cfa2 | 294 | (viper-deflocalvar viper-automatic-iso-accents nil "") |
3af0304a | 295 | ;; Set iso-accents-mode to ARG. Check if it is bound first |
34317da2 MK |
296 | (defsubst viper-set-iso-accents-mode (arg) |
297 | (if (boundp 'iso-accents-mode) | |
298 | (setq iso-accents-mode arg))) | |
f1097063 | 299 | |
34317da2 MK |
300 | ;; Internal flag used to control when viper mule hooks are run. |
301 | ;; Don't change this! | |
302 | (defvar viper-mule-hook-flag t) | |
3af0304a | 303 | ;; If non-nil, the default intl. input method is turned on. |
34317da2 | 304 | (viper-deflocalvar viper-special-input-method nil "") |
f1097063 | 305 | |
34317da2 MK |
306 | ;; viper hook to run on input-method activation |
307 | (defun viper-activate-input-method-action () | |
308 | (if (null viper-mule-hook-flag) | |
309 | () | |
310 | (setq viper-special-input-method t) | |
311 | ;; turn off special input methods in vi-state | |
312 | (if (eq viper-current-state 'vi-state) | |
313 | (viper-set-input-method nil)) | |
ac64a728 MK |
314 | (if (and (memq viper-current-state '(vi-state insert-state replace-state)) |
315 | (not viper-suppress-input-method-change-message)) | |
34317da2 MK |
316 | (message "Viper special input method%s: on" |
317 | (if (or current-input-method default-input-method) | |
f1097063 | 318 | (format " %S" |
34317da2 MK |
319 | (or current-input-method default-input-method)) |
320 | ""))) | |
321 | )) | |
2eb4bdca | 322 | |
34317da2 | 323 | ;; viper hook to run on input-method deactivation |
72b255c7 | 324 | (defun viper-deactivate-input-method-action () |
34317da2 MK |
325 | (if (null viper-mule-hook-flag) |
326 | () | |
327 | (setq viper-special-input-method nil) | |
ac64a728 MK |
328 | (if (and (memq viper-current-state '(vi-state insert-state replace-state)) |
329 | (not viper-suppress-input-method-change-message)) | |
34317da2 MK |
330 | (message "Viper special input method%s: off" |
331 | (if (or current-input-method default-input-method) | |
332 | (format " %S" | |
333 | (or current-input-method default-input-method)) | |
334 | ""))))) | |
335 | ||
72b255c7 PE |
336 | (defun viper-deactivate-input-method () |
337 | (cond ((and (featurep 'emacs) (fboundp 'deactivate-input-method)) | |
338 | (deactivate-input-method)) | |
e83d1fe8 | 339 | ((and (featurep 'xemacs) (boundp 'current-input-method)) |
ce8fc80b | 340 | ;; XEmacs had broken quail-mode for some time, so we are working around |
f1097063 | 341 | ;; it here |
34317da2 MK |
342 | (setq quail-mode nil) |
343 | (if (featurep 'quail) | |
344 | (quail-delete-overlays)) | |
345 | (setq describe-current-input-method-function nil) | |
346 | (setq current-input-method nil) | |
72b255c7 PE |
347 | (run-hooks |
348 | 'input-method-inactivate-hook ; for backward compatibility | |
349 | 'input-method-deactivate-hook) | |
34317da2 MK |
350 | (force-mode-line-update)) |
351 | )) | |
352 | (defun viper-activate-input-method () | |
e83d1fe8 | 353 | (cond ((and (featurep 'emacs) (fboundp 'activate-input-method)) |
34317da2 | 354 | (activate-input-method default-input-method)) |
b674ceaf RS |
355 | ((featurep 'xemacs) |
356 | (if (fboundp 'quail-mode) (quail-mode 1))))) | |
34317da2 MK |
357 | |
358 | ;; Set quail-mode to ARG | |
359 | (defun viper-set-input-method (arg) | |
360 | (setq viper-mule-hook-flag t) ; just a precaution | |
ac64a728 | 361 | (let (viper-mule-hook-flag) ; temporarily deactivate viper mule hooks |
34317da2 MK |
362 | (cond ((and arg (> (prefix-numeric-value arg) 0) default-input-method) |
363 | ;; activate input method | |
364 | (viper-activate-input-method)) | |
365 | (t ; deactivate input method | |
72b255c7 | 366 | (viper-deactivate-input-method))) |
34317da2 MK |
367 | )) |
368 | ||
9b70a748 MK |
369 | |
370 | ;; VI-style Undo | |
371 | ||
372 | ;; Used to 'undo' complex commands, such as replace and insert commands. | |
8626cfa2 MK |
373 | (viper-deflocalvar viper-undo-needs-adjustment nil) |
374 | (put 'viper-undo-needs-adjustment 'permanent-local t) | |
9b70a748 MK |
375 | |
376 | ;; A mark that Viper puts on buffer-undo-list. Marks the beginning of a | |
3af0304a | 377 | ;; complex command that must be undone atomically. If inserted, it is |
8626cfa2 MK |
378 | ;; erased by viper-change-state-to-vi and viper-repeat. |
379 | (defconst viper-buffer-undo-list-mark 'viper) | |
9b70a748 | 380 | |
8626cfa2 | 381 | (defcustom viper-keep-point-on-undo nil |
fb7ada5f | 382 | "Non-nil means not to move point while undoing commands. |
3af0304a | 383 | This style is different from Emacs and Vi. Try it to see if |
1e70790f MK |
384 | it better fits your working style." |
385 | :type 'boolean | |
386 | :tag "Preserve Position of Point After Undo" | |
f1097063 | 387 | :group 'viper) |
9b70a748 MK |
388 | |
389 | ;; Replace mode and changing text | |
390 | ||
2eb4bdca | 391 | ;; Hack used to pass global states around for short period of time |
8626cfa2 MK |
392 | (viper-deflocalvar viper-intermediate-command nil "") |
393 | ||
394 | ;; This is used to pass the right Vi command key sequence to | |
395 | ;; viper-set-destructive-command whenever (this-command-keys) doesn't give the | |
3af0304a MK |
396 | ;; right result. For instance, in commands like c/bla<RET>, |
397 | ;; (this-command-keys) will return ^M, which invoked exit-minibuffer, while we | |
f1097063 | 398 | ;; need "c/" |
8626cfa2 | 399 | (defconst viper-this-command-keys nil) |
9b70a748 MK |
400 | |
401 | ;; Indicates that the current destructive command has started in replace mode. | |
8626cfa2 | 402 | (viper-deflocalvar viper-began-as-replace nil "") |
9b70a748 | 403 | |
8626cfa2 | 404 | (defcustom viper-allow-multiline-replace-regions t |
9b70a748 MK |
405 | "If non-nil, Viper will allow multi-line replace regions. |
406 | This is an extension to standard Vi. | |
407 | If nil, commands that attempt to replace text spanning multiple lines first | |
1e70790f MK |
408 | delete the text being replaced, as in standard Vi." |
409 | :type 'boolean | |
410 | :group 'viper) | |
411 | ||
8626cfa2 | 412 | (defcustom viper-replace-overlay-cursor-color "Red" |
fb7ada5f | 413 | "Cursor color when Viper is in Replace state." |
1e70790f MK |
414 | :type 'string |
415 | :group 'viper) | |
38685583 | 416 | |
8626cfa2 | 417 | (defcustom viper-insert-state-cursor-color "Green" |
1e70790f MK |
418 | "Cursor color when Viper is in insert state." |
419 | :type 'string | |
420 | :group 'viper) | |
9b70a748 | 421 | |
83f49acb MK |
422 | ;; viper-emacs-state-cursor-color doesn't work well. Causes cursor colors to be |
423 | ;; confused in some cases. So, this var is nulled for now. | |
424 | ;; (defcustom viper-emacs-state-cursor-color "Magenta" | |
425 | (defcustom viper-emacs-state-cursor-color nil | |
a6fb441a | 426 | "Cursor color when Viper is in Emacs state." |
a931698a | 427 | :type '(choice (const nil) string) |
b6178721 | 428 | :group 'viper) |
b6178721 | 429 | |
3af0304a MK |
430 | ;; internal var, used to remember the default cursor color of emacs frames |
431 | (defvar viper-vi-state-cursor-color nil) | |
cbfcb1d0 | 432 | |
ce8fc80b GM |
433 | ;; Frame-local variables are obsolete from Emacs 22.2 onwards, so we |
434 | ;; do it by hand with viper-frame-value (qv). | |
435 | (when (and (featurep 'xemacs) | |
436 | (fboundp 'make-variable-frame-local)) | |
437 | (make-variable-frame-local 'viper-replace-overlay-cursor-color) | |
438 | (make-variable-frame-local 'viper-insert-state-cursor-color) | |
439 | (make-variable-frame-local 'viper-emacs-state-cursor-color) | |
440 | (make-variable-frame-local 'viper-vi-state-cursor-color)) | |
f1097063 | 441 | |
8626cfa2 MK |
442 | (viper-deflocalvar viper-replace-overlay nil "") |
443 | (put 'viper-replace-overlay 'permanent-local t) | |
9b70a748 | 444 | |
8626cfa2 | 445 | (defcustom viper-replace-region-end-delimiter "$" |
9b70a748 | 446 | "A string marking the end of replacement regions. |
8626cfa2 | 447 | It is used only with TTYs or if `viper-use-replace-region-delimiters' |
1e70790f MK |
448 | is non-nil." |
449 | :type 'string | |
450 | :group 'viper) | |
8626cfa2 | 451 | (defcustom viper-replace-region-start-delimiter "" |
9b70a748 | 452 | "A string marking the beginning of replacement regions. |
8626cfa2 | 453 | It is used only with TTYs or if `viper-use-replace-region-delimiters' |
1e70790f MK |
454 | is non-nil." |
455 | :type 'string | |
456 | :group 'viper) | |
f1097063 | 457 | (defcustom viper-use-replace-region-delimiters |
96dffd25 | 458 | (or (not (viper-has-face-support-p)) |
e83d1fe8 | 459 | (and (featurep 'xemacs) (eq (viper-device-type) 'tty))) |
fb7ada5f | 460 | "If non-nil, Viper will always use `viper-replace-region-end-delimiter' and |
8626cfa2 | 461 | `viper-replace-region-start-delimiter' to delimit replacement regions, even on |
3af0304a | 462 | color displays. By default, the delimiters are used only on TTYs." |
1e70790f MK |
463 | :type 'boolean |
464 | :group 'viper) | |
3af0304a MK |
465 | |
466 | (defcustom viper-read-buffer-function 'read-buffer | |
467 | "Function to use for prompting the user for a buffer name." | |
468 | :type 'symbol | |
469 | :group 'viper) | |
f1097063 | 470 | |
9b70a748 | 471 | ;; XEmacs requires glyphs |
ce8fc80b GM |
472 | (when (featurep 'xemacs) |
473 | (or (glyphp viper-replace-region-end-delimiter) | |
474 | (setq viper-replace-region-end-delimiter | |
475 | (make-glyph viper-replace-region-end-delimiter))) | |
476 | (or (glyphp viper-replace-region-start-delimiter) | |
477 | (setq viper-replace-region-start-delimiter | |
478 | (make-glyph viper-replace-region-start-delimiter)))) | |
f1097063 | 479 | |
9b70a748 | 480 | ;; These are local marker that must be initialized to nil and moved with |
8626cfa2 | 481 | ;; `viper-move-marker-locally' |
9b70a748 MK |
482 | ;; |
483 | ;; Remember the last position inside the replace region. | |
8626cfa2 | 484 | (viper-deflocalvar viper-last-posn-in-replace-region nil) |
9b70a748 | 485 | ;; Remember the last position while inserting |
8626cfa2 MK |
486 | (viper-deflocalvar viper-last-posn-while-in-insert-state nil) |
487 | (put 'viper-last-posn-in-replace-region 'permanent-local t) | |
488 | (put 'viper-last-posn-while-in-insert-state 'permanent-local t) | |
9b70a748 | 489 | |
8626cfa2 MK |
490 | (viper-deflocalvar viper-sitting-in-replace nil "") |
491 | (put 'viper-sitting-in-replace 'permanent-local t) | |
f1097063 | 492 | |
9b70a748 MK |
493 | ;; Remember the number of characters that have to be deleted in replace |
494 | ;; mode to compensate for the inserted characters. | |
8626cfa2 | 495 | (viper-deflocalvar viper-replace-chars-to-delete 0 "") |
34317da2 | 496 | ;; This variable is used internally by the before/after changed functions to |
3af0304a | 497 | ;; determine how many chars were deleted by the change. This can't be |
34317da2 MK |
498 | ;; determined inside after-change-functions because those get the length of the |
499 | ;; deleted region, not the number of chars deleted (which are two different | |
500 | ;; things under MULE). | |
501 | (viper-deflocalvar viper-replace-region-chars-deleted 0 "") | |
9b70a748 MK |
502 | |
503 | ;; Insertion ring and command ring | |
8626cfa2 | 504 | (defcustom viper-insertion-ring-size 14 |
1e70790f MK |
505 | "The size of history of inserted text. |
506 | This is a list where Viper keeps the history of previously inserted pieces of | |
507 | text." | |
508 | :type 'integer | |
8e41a31c | 509 | :group 'viper-misc) |
9b70a748 | 510 | ;; The insertion ring. |
8626cfa2 | 511 | (defvar viper-insertion-ring nil) |
3af0304a | 512 | ;; This is temp insertion ring. Used to do rotation for display purposes. |
8626cfa2 MK |
513 | ;; When rotation just started, it is initialized to viper-insertion-ring. |
514 | (defvar viper-temp-insertion-ring nil) | |
515 | (defvar viper-last-inserted-string-from-insertion-ring "") | |
9b70a748 | 516 | |
8626cfa2 | 517 | (defcustom viper-command-ring-size 14 |
1e70790f MK |
518 | "The size of history of Vi commands repeatable with dot." |
519 | :type 'integer | |
8e41a31c | 520 | :group 'viper-misc) |
9b70a748 | 521 | ;; The command ring. |
8626cfa2 | 522 | (defvar viper-command-ring nil) |
3af0304a | 523 | ;; This is temp command ring. Used to do rotation for display purposes. |
8626cfa2 MK |
524 | ;; When rotation just started, it is initialized to viper-command-ring. |
525 | (defvar viper-temp-command-ring nil) | |
9b70a748 | 526 | |
1e70790f | 527 | ;; Fast keyseq and ESC keyseq timeouts |
8626cfa2 | 528 | (defcustom viper-fast-keyseq-timeout 200 |
fb7ada5f | 529 | "Key sequence separated by no more than this many milliseconds is viewed as a Vi-style macro, if such a macro is defined. |
3af0304a | 530 | Setting this too high may slow down your typing. Setting this value too low |
751d3bc4 | 531 | will make it hard to use Vi-style timeout macros." |
1e70790f | 532 | :type 'integer |
8e41a31c | 533 | :group 'viper-misc) |
1e70790f | 534 | |
8c3ad6c4 MK |
535 | ;; This function determines if ESC key sequences are to be translated into |
536 | ;; commands. | |
537 | (defun viper-translate-all-ESC-keysequences () | |
538 | (not (viper-window-display-p))) | |
55d7ff38 | 539 | |
9b70a748 MK |
540 | ;; Modes and related variables |
541 | ||
542 | ;; Current mode. One of: `emacs-state', `vi-state', `insert-state' | |
8626cfa2 | 543 | (viper-deflocalvar viper-current-state 'emacs-state) |
9b70a748 MK |
544 | |
545 | ||
546 | ;; Autoindent in insert | |
547 | ||
548 | ;; Variable that keeps track of whether C-t has been pressed. | |
8626cfa2 | 549 | (viper-deflocalvar viper-cted nil "") |
9b70a748 MK |
550 | |
551 | ;; Preserve the indent value, used by C-d in insert mode. | |
8626cfa2 | 552 | (viper-deflocalvar viper-current-indent 0) |
9b70a748 MK |
553 | |
554 | ;; Whether to preserve the indent, used by C-d in insert mode. | |
8626cfa2 | 555 | (viper-deflocalvar viper-preserve-indent nil) |
9b70a748 | 556 | |
8626cfa2 MK |
557 | (viper-deflocalvar viper-auto-indent nil "") |
558 | (defcustom viper-auto-indent nil | |
fb7ada5f | 559 | "Enable autoindent, if t. |
1e70790f MK |
560 | This is a buffer-local variable." |
561 | :type 'boolean | |
562 | :group 'viper) | |
563 | ||
8626cfa2 MK |
564 | (viper-deflocalvar viper-electric-mode t "") |
565 | (defcustom viper-electric-mode t | |
fb7ada5f | 566 | "If t, electrify Viper. |
1e70790f MK |
567 | Currently, this only electrifies auto-indentation, making it appropriate to the |
568 | mode of the buffer. | |
569 | This means that auto-indentation will depart from standard Vi and will indent | |
3af0304a | 570 | appropriate to the mode of the buffer. This is especially useful for editing |
1e70790f MK |
571 | programs and LaTeX documents." |
572 | :type 'boolean | |
573 | :group 'viper) | |
574 | ||
8626cfa2 | 575 | (defcustom viper-shift-width 8 |
fb7ada5f | 576 | "The value of the shiftwidth. |
2eb4bdca MK |
577 | This determines the number of columns by which the Ctl-t moves the cursor in |
578 | the Insert state." | |
1e70790f MK |
579 | :type 'integer |
580 | :group 'viper) | |
9b70a748 MK |
581 | |
582 | ;; Variables for repeating destructive commands | |
583 | ||
8626cfa2 | 584 | (defcustom viper-keep-point-on-repeat t |
fb7ada5f | 585 | "If t, don't move point when repeating previous command. |
9b70a748 MK |
586 | This is useful for doing repeated changes with the '.' key. |
587 | The user can change this to nil, if she likes when the cursor moves | |
1e70790f MK |
588 | to a new place after repeating previous Vi command." |
589 | :type 'boolean | |
f1097063 | 590 | :group 'viper) |
9b70a748 MK |
591 | |
592 | ;; Remember insert point as a marker. This is a local marker that must be | |
8626cfa2 MK |
593 | ;; initialized to nil and moved with `viper-move-marker-locally'. |
594 | (viper-deflocalvar viper-insert-point nil) | |
595 | (put 'viper-insert-point 'permanent-local t) | |
9b70a748 MK |
596 | |
597 | ;; This remembers the point before dabbrev-expand was called. | |
8626cfa2 MK |
598 | ;; If viper-insert-point turns out to be bigger than that, it is reset |
599 | ;; back to viper-pre-command-point. | |
9b70a748 MK |
600 | ;; The reason this is needed is because dabbrev-expand (and possibly |
601 | ;; others) may jump to before the insertion point, delete something and | |
3af0304a | 602 | ;; then reinsert a bigger piece. For instance: bla^blo |
ee7683eb | 603 | ;; If dabbrev-expand is called after `blo' and ^ indicates viper-insert-point, |
3af0304a MK |
604 | ;; then point jumps to the beginning of `blo'. If expansion is found, `blablo' |
605 | ;; is deleted, and we have |^, where | denotes point. Next, dabbrev-expand | |
9b70a748 MK |
606 | ;; will insert the expansion, and we get: blablo^ |
607 | ;; Whatever we insert next goes before the ^, i.e., before the | |
3af0304a MK |
608 | ;; viper-insert-point marker. So, Viper will think that nothing was |
609 | ;; inserted. Remembering the orig position of the marker circumvents the | |
9b70a748 MK |
610 | ;; problem. |
611 | ;; We don't know of any command, except dabbrev-expand, that has the same | |
3af0304a | 612 | ;; problem. However, the same trick can be used if such a command is |
9b70a748 MK |
613 | ;; discovered later. |
614 | ;; | |
8626cfa2 MK |
615 | (viper-deflocalvar viper-pre-command-point nil) |
616 | (put 'viper-pre-command-point 'permanent-local t) ; this is probably an overkill | |
9b70a748 MK |
617 | |
618 | ;; This is used for saving inserted text. | |
8626cfa2 | 619 | (defvar viper-last-insertion nil) |
f1097063 | 620 | |
9b70a748 | 621 | ;; Remembers the last replaced region. |
8626cfa2 | 622 | (defvar viper-last-replace-region "") |
f1097063 | 623 | |
9b70a748 | 624 | ;; Remember com point as a marker. |
3af0304a | 625 | ;; This is a local marker. Should be moved with `viper-move-marker-locally' |
8626cfa2 | 626 | (viper-deflocalvar viper-com-point nil) |
9b70a748 MK |
627 | |
628 | ;; If non-nil, the value is a list (M-COM VAL COM REG inserted-text cmd-keys) | |
629 | ;; It is used to re-execute last destructive command. | |
630 | ;; M-COM is a Lisp symbol representing the function to be executed. | |
631 | ;; VAL is the prefix argument that was used with that command. | |
632 | ;; COM is an internal descriptor, such as ?r, ?c, ?C, which contains | |
633 | ;; additional information on how the function in M-COM is to be handled. | |
634 | ;; REG is the register used by command | |
635 | ;; INSERTED-TEXT is text inserted by that command (in case of o, c, C, i, r | |
636 | ;; commands). | |
637 | ;; COMMAND-KEYS are the keys that were typed to invoke the command. | |
8626cfa2 | 638 | (defvar viper-d-com nil) |
9b70a748 MK |
639 | |
640 | ;; The character remembered by the Vi `r' command. | |
8626cfa2 | 641 | (defvar viper-d-char nil) |
9b70a748 MK |
642 | |
643 | ;; Name of register to store deleted or yanked strings | |
8626cfa2 | 644 | (defvar viper-use-register nil) |
9b70a748 MK |
645 | |
646 | ||
34317da2 | 647 | ;;; Variables for Moves and Searches |
9b70a748 | 648 | |
8e41a31c MK |
649 | (defgroup viper-search nil |
650 | "Variables that define the search and query-replace behavior of Viper." | |
651 | :prefix "viper-" | |
652 | :group 'viper) | |
653 | ||
9b70a748 | 654 | ;; For use by `;' command. |
8626cfa2 | 655 | (defvar viper-f-char nil) |
9b70a748 MK |
656 | |
657 | ;; For use by `.' command. | |
8626cfa2 | 658 | (defvar viper-F-char nil) |
9b70a748 MK |
659 | |
660 | ;; For use by `;' command. | |
8626cfa2 | 661 | (defvar viper-f-forward nil) |
9b70a748 MK |
662 | |
663 | ;; For use by `;' command. | |
8626cfa2 | 664 | (defvar viper-f-offset nil) |
9b70a748 MK |
665 | |
666 | ;; Last search string | |
8626cfa2 | 667 | (defvar viper-s-string "") |
9b70a748 | 668 | |
8626cfa2 | 669 | (defcustom viper-quote-string "> " |
1e70790f MK |
670 | "String inserted at the beginning of quoted region." |
671 | :type 'string | |
672 | :group 'viper) | |
9b70a748 MK |
673 | |
674 | ;; If t, search is forward. | |
8626cfa2 | 675 | (defvar viper-s-forward nil) |
9b70a748 | 676 | |
8626cfa2 | 677 | (defcustom viper-case-fold-search nil |
fb7ada5f | 678 | "If not nil, search ignores cases." |
1e70790f | 679 | :type 'boolean |
8e41a31c | 680 | :group 'viper-search) |
9b70a748 | 681 | |
8626cfa2 | 682 | (defcustom viper-re-search t |
fb7ada5f | 683 | "If not nil, search is regexp search, otherwise vanilla search." |
1e70790f MK |
684 | :type 'boolean |
685 | :tag "Regexp Search" | |
8e41a31c | 686 | :group 'viper-search) |
9b70a748 | 687 | |
8626cfa2 | 688 | (defcustom viper-search-scroll-threshold 2 |
fb7ada5f | 689 | "If search lands within this threshold from the window top/bottom, |
9b70a748 MK |
690 | the window will be scrolled up or down appropriately, to reveal context. |
691 | If you want Viper search to behave as usual in Vi, set this variable to a | |
1e70790f | 692 | negative number." |
f0024d8c | 693 | :type 'integer |
8e41a31c | 694 | :group 'viper-search) |
1e70790f | 695 | |
8626cfa2 | 696 | (defcustom viper-re-query-replace t |
fb7ada5f | 697 | "If t then do regexp replace, if nil then do string replace." |
1e70790f MK |
698 | :type 'boolean |
699 | :tag "Regexp Query Replace" | |
8e41a31c | 700 | :group 'viper-search) |
1e70790f | 701 | |
8626cfa2 | 702 | (defcustom viper-re-replace t |
fb7ada5f | 703 | "If t, do regexp replace. nil means do string replace." |
1e70790f MK |
704 | :type 'boolean |
705 | :tag "Regexp Replace" | |
8e41a31c | 706 | :group 'viper-search) |
1e70790f | 707 | |
8626cfa2 | 708 | (defcustom viper-parse-sexp-ignore-comments t |
fb7ada5f | 709 | "If t, `%' ignores the parentheses that occur inside comments." |
1e70790f MK |
710 | :type 'boolean |
711 | :group 'viper) | |
712 | ||
8626cfa2 MK |
713 | (viper-deflocalvar viper-ex-style-motion t "") |
714 | (defcustom viper-ex-style-motion t | |
fb7ada5f | 715 | "If t, the commands l,h do not cross lines, etc (Ex-style). |
1e70790f MK |
716 | If nil, these commands cross line boundaries." |
717 | :type 'boolean | |
718 | :group 'viper) | |
719 | ||
34317da2 MK |
720 | (viper-deflocalvar viper-ex-style-editing t "") |
721 | (defcustom viper-ex-style-editing t | |
fb7ada5f | 722 | "If t, Ex-style behavior while editing in Vi command and insert states. |
34317da2 MK |
723 | `Backspace' and `Delete' don't cross line boundaries in insert. |
724 | `X' and `x' can't delete characters across line boundary in Vi, etc. | |
1e70790f | 725 | Note: this doesn't preclude `Backspace' and `Delete' from deleting characters |
3af0304a | 726 | by moving past the insertion point. This is a feature, not a bug. |
34317da2 MK |
727 | |
728 | If nil, the above commands can work across lines." | |
1e70790f MK |
729 | :type 'boolean |
730 | :group 'viper) | |
731 | ||
34317da2 | 732 | (viper-deflocalvar viper-ESC-moves-cursor-back viper-ex-style-editing "") |
8626cfa2 | 733 | (defcustom viper-ESC-moves-cursor-back nil |
fb7ada5f | 734 | "If t, ESC moves cursor back when changing from insert to vi state. |
34317da2 | 735 | If nil, the cursor stays where it was when ESC was hit." |
1e70790f MK |
736 | :type 'boolean |
737 | :group 'viper) | |
738 | ||
8626cfa2 MK |
739 | (viper-deflocalvar viper-delete-backwards-in-replace nil "") |
740 | (defcustom viper-delete-backwards-in-replace nil | |
fb7ada5f | 741 | "If t, DEL key will delete characters while moving the cursor backwards. |
1e70790f MK |
742 | If nil, the cursor will move backwards without deleting anything." |
743 | :type 'boolean | |
744 | :group 'viper) | |
745 | ||
8626cfa2 | 746 | (defcustom viper-buffer-search-char nil |
fb7ada5f | 747 | "Key used for buffer-searching. Must be a character type, e.g., ?g." |
1e70790f | 748 | :type '(choice (const nil) character) |
8e41a31c | 749 | :group 'viper-search) |
1e70790f | 750 | |
a5254f37 | 751 | (defcustom viper-search-wrap-around t |
fb7ada5f | 752 | "If t, search wraps around." |
1e70790f MK |
753 | :type 'boolean |
754 | :tag "Search Wraps Around" | |
8e41a31c | 755 | :group 'viper-search) |
f1097063 | 756 | |
8626cfa2 MK |
757 | (viper-deflocalvar viper-related-files-and-buffers-ring nil "") |
758 | (defcustom viper-related-files-and-buffers-ring nil | |
fb7ada5f | 759 | "List of file and buffer names that are considered to be related to the current buffer. |
1e70790f MK |
760 | Related buffers can be cycled through via :R and :P commands." |
761 | :type 'boolean | |
8e41a31c | 762 | :group 'viper-misc) |
8626cfa2 | 763 | (put 'viper-related-files-and-buffers-ring 'permanent-local t) |
9b70a748 MK |
764 | |
765 | ;; Used to find out if we are done with searching the current buffer. | |
8626cfa2 | 766 | (viper-deflocalvar viper-local-search-start-marker nil) |
9b70a748 | 767 | ;; As above, but global |
8626cfa2 | 768 | (defvar viper-search-start-marker (make-marker)) |
9b70a748 MK |
769 | |
770 | ;; the search overlay | |
8626cfa2 | 771 | (viper-deflocalvar viper-search-overlay nil) |
9b70a748 MK |
772 | |
773 | ||
f1097063 | 774 | (defvar viper-heading-start |
9b70a748 MK |
775 | (concat "^\\s-*(\\s-*defun\\s-\\|" ; lisp |
776 | "^{\\s-*$\\|^[_a-zA-Z][^()]*[()].*{\\s-*$\\|" ; C/C++ | |
777 | "^\\s-*class.*{\\|^\\s-*struct.*{\\|^\\s-*enum.*{\\|" | |
778 | "^\\\\[sb][a-z]*{.*}\\s-*$\\|" ; latex | |
779 | "^@node\\|@table\\|^@m?enu\\|^@itemize\\|^@if\\|" ; texinfo | |
780 | "^.+:-") ; prolog | |
fb7ada5f | 781 | "Regexps for Headings. Used by \[\[ and \]\].") |
9b70a748 | 782 | |
f1097063 | 783 | (defvar viper-heading-end |
9b70a748 MK |
784 | (concat "^}\\|" ; C/C++ |
785 | "^\\\\end{\\|" ; latex | |
786 | "^@end \\|" ; texinfo | |
787 | ")\n\n[ \t\n]*\\|" ; lisp | |
788 | "\\.\\s-*$") ; prolog | |
3af0304a | 789 | "*Regexps to end Headings/Sections. Used by \[\].") |
9b70a748 MK |
790 | |
791 | ||
792 | ;; These two vars control the interaction of jumps performed by ' and `. | |
793 | ;; In this new version, '' doesn't erase the marks set by ``, so one can | |
cf503f7c | 794 | ;; use both kinds of jumps interchangeably and without losing positions |
9b70a748 MK |
795 | ;; inside the lines. |
796 | ||
797 | ;; Remembers position of the last jump done using ``'. | |
8626cfa2 | 798 | (viper-deflocalvar viper-last-jump nil) |
9b70a748 | 799 | ;; Remembers position of the last jump done using `''. |
8626cfa2 | 800 | (viper-deflocalvar viper-last-jump-ignore 0) |
9b70a748 MK |
801 | |
802 | ;; History variables | |
803 | ||
804 | ;; History of search strings. | |
8626cfa2 | 805 | (defvar viper-search-history (list "")) |
9b70a748 | 806 | ;; History of query-replace strings used as a source. |
8626cfa2 | 807 | (defvar viper-replace1-history nil) |
9b70a748 | 808 | ;; History of query-replace strings used as replacement. |
8626cfa2 | 809 | (defvar viper-replace2-history nil) |
9b70a748 | 810 | ;; History of region quoting strings. |
8626cfa2 | 811 | (defvar viper-quote-region-history (list viper-quote-string)) |
9b70a748 | 812 | ;; History of Ex-style commands. |
8626cfa2 | 813 | (defvar viper-ex-history nil) |
9b70a748 | 814 | ;; History of shell commands. |
8626cfa2 | 815 | (defvar viper-shell-history nil) |
9b70a748 MK |
816 | |
817 | ||
3af0304a | 818 | ;; Last shell command. There are two of these, one for Ex (in viper-ex) |
9b70a748 MK |
819 | ;; and one for Vi. |
820 | ||
821 | ;; Last shell command executed with ! command. | |
8626cfa2 | 822 | (defvar viper-last-shell-com nil) |
9b70a748 | 823 | |
41497c90 MK |
824 | \f |
825 | ;;; Face-saving tricks | |
826 | ||
41497c90 | 827 | (defgroup viper-highlighting nil |
c80e3b4a | 828 | "Highlighting of replace region, search pattern, minibuffer, etc." |
41497c90 MK |
829 | :prefix "viper-" |
830 | :group 'viper) | |
831 | ||
41497c90 | 832 | |
25c06649 | 833 | (defface viper-search |
41497c90 | 834 | '((((class color)) (:foreground "Black" :background "khaki")) |
2d30d788 | 835 | (t (:underline t :stipple "gray3"))) |
fb7ada5f | 836 | "Face used to flash out the search pattern." |
41497c90 | 837 | :group 'viper-highlighting) |
3af0304a | 838 | ;; An internal variable. Viper takes the face from here. |
25c06649 | 839 | (defvar viper-search-face 'viper-search |
8e41a31c | 840 | "Face used to flash out the search pattern. |
3af0304a | 841 | DO NOT CHANGE this variable. Instead, use the customization widget |
8ea74b0e | 842 | to customize the actual face object `viper-search' |
8e41a31c | 843 | this variable represents.") |
41497c90 | 844 | |
25c06649 | 845 | (defface viper-replace-overlay |
41497c90 | 846 | '((((class color)) (:foreground "Black" :background "darkseagreen2")) |
2d30d788 | 847 | (t (:underline t :stipple "gray3"))) |
fb7ada5f | 848 | "Face for highlighting replace regions on a window display." |
41497c90 | 849 | :group 'viper-highlighting) |
3af0304a | 850 | ;; An internal variable. Viper takes the face from here. |
25c06649 | 851 | (defvar viper-replace-overlay-face 'viper-replace-overlay |
8e41a31c | 852 | "Face for highlighting replace regions on a window display. |
3af0304a | 853 | DO NOT CHANGE this variable. Instead, use the customization widget |
8ea74b0e | 854 | to customize the actual face object `viper-replace-overlay' |
8e41a31c | 855 | this variable represents.") |
41497c90 | 856 | |
25c06649 | 857 | (defface viper-minibuffer-emacs |
41497c90 | 858 | '((((class color)) (:foreground "Black" :background "darkseagreen2")) |
e31c1fd5 | 859 | (t (:weight bold))) |
41497c90 MK |
860 | "Face used in the Minibuffer when it is in Emacs state." |
861 | :group 'viper-highlighting) | |
3af0304a | 862 | ;; An internal variable. Viper takes the face from here. |
25c06649 | 863 | (defvar viper-minibuffer-emacs-face 'viper-minibuffer-emacs |
8e41a31c | 864 | "Face used in the Minibuffer when it is in Emacs state. |
3af0304a | 865 | DO NOT CHANGE this variable. Instead, use the customization widget |
8ea74b0e | 866 | to customize the actual face object `viper-minibuffer-emacs' |
8e41a31c | 867 | this variable represents.") |
41497c90 | 868 | |
25c06649 | 869 | (defface viper-minibuffer-insert |
41497c90 | 870 | '((((class color)) (:foreground "Black" :background "pink")) |
e31c1fd5 | 871 | (t (:slant italic))) |
41497c90 MK |
872 | "Face used in the Minibuffer when it is in Insert state." |
873 | :group 'viper-highlighting) | |
3af0304a | 874 | ;; An internal variable. Viper takes the face from here. |
25c06649 | 875 | (defvar viper-minibuffer-insert-face 'viper-minibuffer-insert |
8e41a31c | 876 | "Face used in the Minibuffer when it is in Insert state. |
3af0304a | 877 | DO NOT CHANGE this variable. Instead, use the customization widget |
8ea74b0e | 878 | to customize the actual face object `viper-minibuffer-insert' |
8e41a31c | 879 | this variable represents.") |
41497c90 | 880 | |
25c06649 | 881 | (defface viper-minibuffer-vi |
41497c90 MK |
882 | '((((class color)) (:foreground "DarkGreen" :background "grey")) |
883 | (t (:inverse-video t))) | |
884 | "Face used in the Minibuffer when it is in Vi state." | |
885 | :group 'viper-highlighting) | |
3af0304a | 886 | ;; An internal variable. Viper takes the face from here. |
25c06649 | 887 | (defvar viper-minibuffer-vi-face 'viper-minibuffer-vi |
8e41a31c | 888 | "Face used in the Minibuffer when it is in Vi state. |
3af0304a | 889 | DO NOT CHANGE this variable. Instead, use the customization widget |
8ea74b0e | 890 | to customize the actual face object `viper-minibuffer-vi' |
8e41a31c | 891 | this variable represents.") |
f1097063 | 892 | |
41497c90 | 893 | ;; the current face to be used in the minibuffer |
8e41a31c MK |
894 | (viper-deflocalvar |
895 | viper-minibuffer-current-face viper-minibuffer-emacs-face "") | |
9b70a748 MK |
896 | |
897 | \f | |
898 | ;;; Miscellaneous | |
899 | ||
8626cfa2 | 900 | (defvar viper-inhibit-startup-message nil |
9b70a748 MK |
901 | "Whether Viper startup message should be inhibited.") |
902 | ||
8626cfa2 | 903 | (defcustom viper-spell-function 'ispell-region |
1e70790f MK |
904 | "Spell function used by #s<move> command to spell." |
905 | :type 'function | |
8e41a31c | 906 | :group 'viper-misc) |
9b70a748 | 907 | |
8626cfa2 | 908 | (defcustom viper-tags-file-name "TAGS" |
1e70790f MK |
909 | "The tags file used by Viper." |
910 | :type 'string | |
8e41a31c | 911 | :group 'viper-misc) |
9b70a748 | 912 | |
3af0304a MK |
913 | (defcustom viper-change-notification-threshold 1 |
914 | "Notify the user when this many lines or characters have been deleted/yanked. | |
915 | For line-deleting/yanking commands (like `dd', `yy'), the value denotes the | |
916 | number of lines. For character-based commands (such as `x', `dw', etc.), the | |
917 | value refers to the number of characters affected." | |
918 | :type 'integer | |
919 | :group 'viper-misc) | |
920 | ||
9b70a748 MK |
921 | ;; Minibuffer |
922 | ||
8626cfa2 | 923 | (defcustom viper-vi-style-in-minibuffer t |
9b70a748 | 924 | "If t, use vi-style editing in minibuffer. |
8626cfa2 | 925 | Should be set in `~/.viper' file." |
1e70790f MK |
926 | :type 'boolean |
927 | :group 'viper) | |
f1097063 | 928 | |
9b70a748 | 929 | ;; overlay used in the minibuffer to indicate which state it is in |
8626cfa2 | 930 | (viper-deflocalvar viper-minibuffer-overlay nil) |
3af0304a | 931 | (put 'viper-minibuffer-overlay 'permanent-local t) |
9b70a748 MK |
932 | |
933 | ;; Hook, specific to Viper, which is run just *before* exiting the minibuffer. | |
2eb4bdca MK |
934 | ;; This is needed because beginning with Emacs 19.26, the standard |
935 | ;; `minibuffer-exit-hook' is run *after* exiting the minibuffer | |
936 | (defvar viper-minibuffer-exit-hook nil) | |
f1097063 | 937 | |
9b70a748 MK |
938 | |
939 | ;; Mode line | |
8626cfa2 | 940 | (defconst viper-vi-state-id "<V> " |
9b70a748 | 941 | "Mode line tag identifying the Vi mode of Viper.") |
8626cfa2 | 942 | (defconst viper-emacs-state-id "<E> " |
9b70a748 | 943 | "Mode line tag identifying the Emacs mode of Viper.") |
8626cfa2 | 944 | (defconst viper-insert-state-id "<I> " |
9b70a748 | 945 | "Mode line tag identifying the Insert mode of Viper.") |
8626cfa2 | 946 | (defconst viper-replace-state-id "<R> " |
9b70a748 MK |
947 | "Mode line tag identifying the Replace mode of Viper.") |
948 | ||
9b70a748 | 949 | |
8e41a31c MK |
950 | (defgroup viper-hooks nil |
951 | "Viper hooks." | |
952 | :prefix "viper-" | |
953 | :group 'viper) | |
954 | ||
7d027816 | 955 | (defcustom viper-vi-state-hook 'viper-restore-cursor-type |
fb7ada5f | 956 | "Hooks run just before the switch to Vi mode is completed." |
1e70790f | 957 | :type 'hook |
8e41a31c | 958 | :group 'viper-hooks) |
7d027816 | 959 | (defcustom viper-insert-state-hook 'viper-set-insert-cursor-type |
fb7ada5f | 960 | "Hooks run just before the switch to Insert mode is completed." |
1e70790f | 961 | :type 'hook |
8e41a31c | 962 | :group 'viper-hooks) |
7d027816 | 963 | (defcustom viper-replace-state-hook 'viper-restore-cursor-type |
fb7ada5f | 964 | "Hooks run just before the switch to Replace mode is completed." |
1e70790f | 965 | :type 'hook |
8e41a31c | 966 | :group 'viper-hooks) |
7d027816 | 967 | (defcustom viper-emacs-state-hook 'viper-restore-cursor-type |
fb7ada5f | 968 | "Hooks run just before the switch to Emacs mode is completed." |
1e70790f | 969 | :type 'hook |
8e41a31c | 970 | :group 'viper-hooks) |
f1097063 | 971 | |
8626cfa2 | 972 | (defcustom viper-load-hook nil |
1e70790f MK |
973 | "Hooks run just after loading Viper." |
974 | :type 'hook | |
8e41a31c | 975 | :group 'viper-hooks) |
f1097063 | 976 | |
7d027816 | 977 | (defun viper-restore-cursor-type () |
bea3997a | 978 | (condition-case nil |
e83d1fe8 | 979 | (if (featurep 'xemacs) |
e2de3a29 | 980 | (set (make-local-variable 'bar-cursor) nil) |
009fdc2e | 981 | (setq cursor-type (default-value 'cursor-type))) |
50a07e18 | 982 | (error nil))) |
7d027816 MK |
983 | |
984 | (defun viper-set-insert-cursor-type () | |
e83d1fe8 | 985 | (if (featurep 'xemacs) |
e2de3a29 | 986 | (set (make-local-variable 'bar-cursor) 2) |
7d027816 MK |
987 | (setq cursor-type '(bar . 2)))) |
988 | ||
42acc581 | 989 | (defun viper-ESC-keyseq-timeout () |
fb7ada5f | 990 | "Key sequence beginning with ESC and separated by no more than this many milliseconds is considered to be generated by a keyboard function key. |
42acc581 MK |
991 | Setting this too high may slow down switching from insert to vi state. Setting |
992 | this value too low will make it impossible to use function keys in insert mode | |
993 | on a dumb terminal." | |
994 | (if (viper-window-display-p) | |
995 | 0 viper-fast-keyseq-timeout)) | |
996 | ||
997 | ||
1e70790f | 998 | |
26a7f02f GM |
999 | (provide 'viper-init) |
1000 | ||
1001 | ||
e2de3a29 MK |
1002 | ;; Local Variables: |
1003 | ;; eval: (put 'viper-deflocalvar 'lisp-indent-hook 'defun) | |
1004 | ;; End: | |
1e70790f | 1005 | |
60370d40 | 1006 | ;;; viper-init.el ends here |