** Cleanup temporary +++/--- lines in etc/NEWS.
[emacs.git] / lisp / emulation / viper-macs.el
blob5bd43a29a0cfe0c0099912f92a2a2de017d43bd0
1 ;;; viper-macs.el --- functions implementing keyboard macros for Viper
3 ;; Copyright (C) 1994, 1995, 1996, 1997, 2000, 2001, 2002, 2003, 2004,
4 ;; 2005, 2006, 2007 Free Software Foundation, Inc.
6 ;; Author: Michael Kifer <kifer@cs.stonybrook.edu>
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
13 ;; any later version.
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.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
23 ;; Boston, MA 02110-1301, USA.
25 ;;; Commentary:
27 ;;; Code:
29 (provide 'viper-macs)
31 ;; compiler pacifier
32 (defvar viper-ex-work-buf)
33 (defvar viper-custom-file-name)
34 (defvar viper-current-state)
35 (defvar viper-fast-keyseq-timeout)
37 ;; loading happens only in non-interactive compilation
38 ;; in order to spare non-viperized emacs from being viperized
39 (if noninteractive
40 (eval-when-compile
41 (let ((load-path (cons (expand-file-name ".") load-path)))
42 (or (featurep 'viper-util)
43 (load "viper-util.el" nil nil 'nosuffix))
44 (or (featurep 'viper-keym)
45 (load "viper-keym.el" nil nil 'nosuffix))
46 (or (featurep 'viper-mous)
47 (load "viper-mous.el" nil nil 'nosuffix))
48 (or (featurep 'viper-cmd)
49 (load "viper-cmd.el" nil nil 'nosuffix))
50 )))
51 ;; end pacifier
53 (require 'viper-util)
54 (require 'viper-keym)
57 ;;; Variables
59 ;; Register holding last macro.
60 (defvar viper-last-macro-reg nil)
62 ;; format of the elements of kbd alists:
63 ;; (name ((buf . macr)...(buf . macr)) ((maj-mode . macr)...) (t . macr))
64 ;; kbd macro alist for Vi state
65 (defvar viper-vi-kbd-macro-alist nil)
66 ;; same for insert/replace state
67 (defvar viper-insert-kbd-macro-alist nil)
68 ;; same for emacs state
69 (defvar viper-emacs-kbd-macro-alist nil)
71 ;; Internal var that passes info between start-kbd-macro and end-kbd-macro
72 ;; in :map and :map!
73 (defvar viper-kbd-macro-parameters nil)
75 (defvar viper-this-kbd-macro nil
76 "Vector of keys representing the name of currently running Viper kbd macro.")
77 (defvar viper-last-kbd-macro nil
78 "Vector of keys representing the name of last Viper keyboard macro.")
80 (defcustom viper-repeat-from-history-key 'f12
81 "Prefix key for accessing previously typed Vi commands.
83 The previous command is accessible, as usual, via `.'. The command before this
84 can be invoked as `<this key> 1', and the command before that, and the command
85 before that one is accessible as `<this key> 2'.
86 The notation for these keys is borrowed from XEmacs. Basically,
87 a key is a symbol, e.g., `a', `\\1', `f2', etc., or a list, e.g.,
88 `(meta control f1)'."
89 :type 'sexp
90 :group 'viper)
94 ;;; Code
96 ;; Ex map command
97 (defun ex-map ()
98 (let ((mod-char "")
99 macro-name macro-body map-args ins)
100 (save-window-excursion
101 (set-buffer viper-ex-work-buf)
102 (if (looking-at "!")
103 (progn
104 (setq ins t
105 mod-char "!")
106 (forward-char 1))))
107 (setq map-args (ex-map-read-args mod-char)
108 macro-name (car map-args)
109 macro-body (cdr map-args))
110 (setq viper-kbd-macro-parameters (list ins mod-char macro-name macro-body))
111 (if macro-body
112 (viper-end-mapping-kbd-macro 'ignore)
113 (ex-fixup-history (format "map%s %S" mod-char
114 (viper-display-macro macro-name)))
115 ;; if defining macro for insert, switch there for authentic WYSIWYG
116 (if ins (viper-change-state-to-insert))
117 (start-kbd-macro nil)
118 (define-key viper-vi-intercept-map "\C-x)" 'viper-end-mapping-kbd-macro)
119 (define-key viper-insert-intercept-map "\C-x)" 'viper-end-mapping-kbd-macro)
120 (define-key viper-emacs-intercept-map "\C-x)" 'viper-end-mapping-kbd-macro)
121 (message "Mapping %S in %s state. Type macro definition followed by `C-x )'"
122 (viper-display-macro macro-name)
123 (if ins "Insert" "Vi")))
127 ;; Ex unmap
128 (defun ex-unmap ()
129 (let ((mod-char "")
130 temp macro-name ins)
131 (save-window-excursion
132 (set-buffer viper-ex-work-buf)
133 (if (looking-at "!")
134 (progn
135 (setq ins t
136 mod-char "!")
137 (forward-char 1))))
139 (setq macro-name (ex-unmap-read-args mod-char))
140 (setq temp (viper-fixup-macro (vconcat macro-name))) ;; copy and fixup
141 (ex-fixup-history (format "unmap%s %S" mod-char
142 (viper-display-macro temp)))
143 (viper-unrecord-kbd-macro macro-name (if ins 'insert-state 'vi-state))
147 ;; read arguments for ex-map
148 (defun ex-map-read-args (variant)
149 (let ((cursor-in-echo-area t)
150 (key-seq [])
151 temp key event message
152 macro-name macro-body args)
154 (condition-case nil
155 (setq args (concat (ex-get-inline-cmd-args ".*map[!]*[ \t]?" "\n\C-m")
156 " nil nil ")
157 temp (read-from-string args)
158 macro-name (car temp)
159 macro-body (car (read-from-string args (cdr temp))))
160 (error
161 (signal
162 'error
163 '("map: Macro name and body must be a quoted string or a vector"))))
165 ;; We expect macro-name to be a vector, a string, or a quoted string.
166 ;; In the second case, it will emerge as a symbol when read from
167 ;; the above read-from-string. So we need to convert it into a string
168 (if macro-name
169 (cond ((vectorp macro-name) nil)
170 ((stringp macro-name)
171 (setq macro-name (vconcat macro-name)))
172 (t (setq macro-name (vconcat (prin1-to-string macro-name)))))
173 (message ":map%s <Macro Name>" variant)(sit-for 2)
174 (while
175 (not (member key
176 '(?\C-m ?\n (control m) (control j) return linefeed)))
177 (setq key-seq (vconcat key-seq (if key (vector key) [])))
178 ;; the only keys available for editing are these-- no help while there
179 (if (member
181 '(?\b ?\d '^? '^H (control h) (control \?) backspace delete))
182 (setq key-seq (viper-subseq key-seq 0 (- (length key-seq) 2))))
183 (setq message
184 (format
185 ":map%s %s"
186 variant (if (> (length key-seq) 0)
187 (prin1-to-string (viper-display-macro key-seq))
188 "")))
189 (message "%s" message)
190 (setq event (viper-read-key))
191 ;;(setq event (viper-read-event))
192 (setq key
193 (if (viper-mouse-event-p event)
194 (progn
195 (message "%s (No mouse---only keyboard keys, please)"
196 message)
197 (sit-for 2)
198 nil)
199 (viper-event-key event)))
201 (setq macro-name key-seq))
203 (if (= (length macro-name) 0)
204 (error "Can't map an empty macro name"))
205 (setq macro-name (viper-fixup-macro macro-name))
206 (if (viper-char-array-p macro-name)
207 (setq macro-name (viper-char-array-to-macro macro-name)))
209 (if macro-body
210 (cond ((viper-char-array-p macro-body)
211 (setq macro-body (viper-char-array-to-macro macro-body)))
212 ((vectorp macro-body) nil)
213 (t (error "map: Invalid syntax in macro definition"))))
214 (setq cursor-in-echo-area nil)(sit-for 0) ; this overcomes xemacs tty bug
215 (cons macro-name macro-body)))
219 ;; read arguments for ex-unmap
220 (defun ex-unmap-read-args (variant)
221 (let ((cursor-in-echo-area t)
222 (macro-alist (if (string= variant "!")
223 viper-insert-kbd-macro-alist
224 viper-vi-kbd-macro-alist))
225 ;; these are disabled just in case, to avoid surprises when doing
226 ;; completing-read
227 viper-vi-kbd-minor-mode viper-insert-kbd-minor-mode
228 viper-emacs-kbd-minor-mode
229 viper-vi-intercept-minor-mode viper-insert-intercept-minor-mode
230 viper-emacs-intercept-minor-mode
231 event message
232 key key-seq macro-name)
233 (setq macro-name (ex-get-inline-cmd-args ".*unma?p?[!]*[ \t]*"))
235 (if (> (length macro-name) 0)
237 (message ":unmap%s <Name>" variant) (sit-for 2)
238 (while
239 (not
240 (member key '(?\C-m ?\n (control m) (control j) return linefeed)))
241 (setq key-seq (vconcat key-seq (if key (vector key) [])))
242 ;; the only keys available for editing are these-- no help while there
243 (cond ((member
245 '(?\b ?\d '^? '^H (control h) (control \?) backspace delete))
246 (setq key-seq (viper-subseq key-seq 0 (- (length key-seq) 2))))
247 ((member key '(tab (control i) ?\t))
248 (setq key-seq (viper-subseq key-seq 0 (1- (length key-seq))))
249 (setq message
250 (format
251 ":unmap%s %s"
252 variant (if (> (length key-seq) 0)
253 (prin1-to-string
254 (viper-display-macro key-seq))
255 "")))
256 (setq key-seq
257 (viper-do-sequence-completion key-seq macro-alist message))
259 (setq message
260 (format
261 ":unmap%s %s"
262 variant (if (> (length key-seq) 0)
263 (prin1-to-string
264 (viper-display-macro key-seq))
265 "")))
266 (message "%s" message)
267 (setq event (viper-read-key))
268 ;;(setq event (viper-read-event))
269 (setq key
270 (if (viper-mouse-event-p event)
271 (progn
272 (message "%s (No mouse---only keyboard keys, please)"
273 message)
274 (sit-for 2)
275 nil)
276 (viper-event-key event)))
278 (setq macro-name key-seq))
280 (if (= (length macro-name) 0)
281 (error "Can't unmap an empty macro name"))
283 ;; convert macro names into vector, if starts with a `['
284 (if (memq (elt macro-name 0) '(?\[ ?\"))
285 (car (read-from-string macro-name))
286 (vconcat macro-name))
290 ;; Terminate a Vi kbd macro.
291 ;; optional argument IGNORE, if t, indicates that we are dealing with an
292 ;; existing macro that needs to be registered, but there is no need to
293 ;; terminate a kbd macro.
294 (defun viper-end-mapping-kbd-macro (&optional ignore)
295 (interactive)
296 (define-key viper-vi-intercept-map "\C-x)" nil)
297 (define-key viper-insert-intercept-map "\C-x)" nil)
298 (define-key viper-emacs-intercept-map "\C-x)" nil)
299 (if (and (not ignore)
300 (or (not viper-kbd-macro-parameters)
301 (not defining-kbd-macro)))
302 (error "Not mapping a kbd-macro"))
303 (let ((mod-char (nth 1 viper-kbd-macro-parameters))
304 (ins (nth 0 viper-kbd-macro-parameters))
305 (macro-name (nth 2 viper-kbd-macro-parameters))
306 (macro-body (nth 3 viper-kbd-macro-parameters)))
307 (setq viper-kbd-macro-parameters nil)
308 (or ignore
309 (progn
310 (end-kbd-macro nil)
311 (setq macro-body (viper-events-to-macro last-kbd-macro))
312 ;; always go back to Vi, since this is where we started
313 ;; defining macro
314 (viper-change-state-to-vi)))
316 (viper-record-kbd-macro macro-name
317 (if ins 'insert-state 'vi-state)
318 (viper-display-macro macro-body))
320 (ex-fixup-history (format "map%s %S %S" mod-char
321 (viper-display-macro macro-name)
322 (viper-display-macro macro-body)))
328 ;;; Recording, unrecording, executing
330 ;; Accepts as macro names: strings and vectors.
331 ;; strings must be strings of characters; vectors must be vectors of keys
332 ;; in canonic form. The canonic form is essentially the form used in XEmacs
333 ;; More general definitions are inherited by more specific scopes:
334 ;; global->major mode->buffer. More specific definitions override more general
335 (defun viper-record-kbd-macro (macro-name state macro-body &optional scope)
336 "Record a Vi macro. Can be used in `.viper' file to define permanent macros.
337 MACRO-NAME is a string of characters or a vector of keys. STATE is
338 either `vi-state' or `insert-state'. It specifies the Viper state in which to
339 define the macro. MACRO-BODY is a string that represents the keyboard macro.
340 Optional SCOPE says whether the macro should be global \(t\), mode-specific
341 \(a major-mode symbol\), or buffer-specific \(buffer name, a string\).
342 If SCOPE is nil, the user is asked to specify the scope."
343 (let* (state-name keymap
344 (macro-alist-var
345 (cond ((eq state 'vi-state)
346 (setq state-name "Vi state"
347 keymap viper-vi-kbd-map)
348 'viper-vi-kbd-macro-alist)
349 ((memq state '(insert-state replace-state))
350 (setq state-name "Insert state"
351 keymap viper-insert-kbd-map)
352 'viper-insert-kbd-macro-alist)
354 (setq state-name "Emacs state"
355 keymap viper-emacs-kbd-map)
356 'viper-emacs-kbd-macro-alist)
358 new-elt old-elt old-sub-elt msg
359 temp lis lis2)
361 (if (= (length macro-name) 0)
362 (error "Can't map an empty macro name"))
364 ;; Macro-name is usually a vector. However, command history or macros
365 ;; recorded in ~/.viper may be recorded as strings. So, convert to
366 ;; vectors.
367 (setq macro-name (viper-fixup-macro macro-name))
368 (if (viper-char-array-p macro-name)
369 (setq macro-name (viper-char-array-to-macro macro-name)))
370 (setq macro-body (viper-fixup-macro macro-body))
371 (if (viper-char-array-p macro-body)
372 (setq macro-body (viper-char-array-to-macro macro-body)))
374 ;; don't ask if scope is given and is of the right type
375 (or (eq scope t)
376 (stringp scope)
377 (and scope (symbolp scope))
378 (progn
379 (setq scope
380 (cond
381 ((y-or-n-p
382 (format
383 "Map this macro for buffer `%s' only? "
384 (buffer-name)))
385 (setq msg
386 (format
387 "%S is mapped to %s for %s in `%s'"
388 (viper-display-macro macro-name)
389 (viper-abbreviate-string
390 (format
391 "%S"
392 (setq temp (viper-display-macro macro-body)))
393 14 "" ""
394 (if (stringp temp) " ....\"" " ....]"))
395 state-name (buffer-name)))
396 (buffer-name))
397 ((y-or-n-p
398 (format
399 "Map this macro for the major mode `%S' only? "
400 major-mode))
401 (setq msg
402 (format
403 "%S is mapped to %s for %s in `%S'"
404 (viper-display-macro macro-name)
405 (viper-abbreviate-string
406 (format
407 "%S"
408 (setq temp (viper-display-macro macro-body)))
409 14 "" ""
410 (if (stringp macro-body) " ....\"" " ....]"))
411 state-name major-mode))
412 major-mode)
414 (setq msg
415 (format
416 "%S is globally mapped to %s in %s"
417 (viper-display-macro macro-name)
418 (viper-abbreviate-string
419 (format
420 "%S"
421 (setq temp (viper-display-macro macro-body)))
422 14 "" ""
423 (if (stringp macro-body) " ....\"" " ....]"))
424 state-name))
425 t)))
426 (if (y-or-n-p
427 (format "Save this macro in %s? "
428 (viper-abbreviate-file-name viper-custom-file-name)))
429 (viper-save-string-in-file
430 (format "\n(viper-record-kbd-macro %S '%S %s '%S)"
431 (viper-display-macro macro-name)
432 state
433 ;; if we don't let vector macro-body through %S,
434 ;; the symbols `\.' `\[' etc will be converted into
435 ;; characters, causing invalid read error on recorded
436 ;; macros in .viper.
437 ;; I am not sure is macro-body can still be a string at
438 ;; this point, but I am preserving this option anyway.
439 (if (vectorp macro-body)
440 (format "%S" macro-body)
441 macro-body)
442 scope)
443 viper-custom-file-name))
445 (message "%s" msg)
448 (setq new-elt
449 (cons macro-name
450 (cond ((eq scope t) (list nil nil (cons t nil)))
451 ((symbolp scope)
452 (list nil (list (cons scope nil)) (cons t nil)))
453 ((stringp scope)
454 (list (list (cons scope nil)) nil (cons t nil))))))
455 (setq old-elt (assoc macro-name (eval macro-alist-var)))
457 (if (null old-elt)
458 (progn
459 ;; insert new-elt in macro-alist-var and keep the list sorted
460 (define-key
461 keymap
462 (vector (viper-key-to-emacs-key (aref macro-name 0)))
463 'viper-exec-mapped-kbd-macro)
464 (setq lis (eval macro-alist-var))
465 (while (and lis (string< (viper-array-to-string (car (car lis)))
466 (viper-array-to-string macro-name)))
467 (setq lis2 (cons (car lis) lis2))
468 (setq lis (cdr lis)))
470 (setq lis2 (reverse lis2))
471 (set macro-alist-var (append lis2 (cons new-elt lis)))
472 (setq old-elt new-elt)))
473 (setq old-sub-elt
474 (cond ((eq scope t) (viper-kbd-global-pair old-elt))
475 ((symbolp scope) (assoc scope (viper-kbd-mode-alist old-elt)))
476 ((stringp scope) (assoc scope (viper-kbd-buf-alist old-elt)))))
477 (if old-sub-elt
478 (setcdr old-sub-elt macro-body)
479 (cond ((symbolp scope) (setcar (cdr (cdr old-elt))
480 (cons (cons scope macro-body)
481 (viper-kbd-mode-alist old-elt))))
482 ((stringp scope) (setcar (cdr old-elt)
483 (cons (cons scope macro-body)
484 (viper-kbd-buf-alist old-elt))))))
489 ;; macro name must be a vector of viper-style keys
490 ;; viper-unrecord-kbd-macro doesn't have scope. Macro definitions are inherited
491 ;; from global -> major mode -> buffer
492 ;; More specific definition overrides more general
493 ;; Can't unrecord definition for more specific, if a more general definition is
494 ;; in effect
495 (defun viper-unrecord-kbd-macro (macro-name state)
496 "Delete macro MACRO-NAME from Viper STATE.
497 MACRO-NAME must be a vector of viper-style keys. This command is used by Viper
498 internally, but the user can also use it in ~/.viper to delete pre-defined
499 macros supplied with Viper. The best way to avoid mistakes in macro names to
500 be passed to this function is to use viper-describe-kbd-macros and copy the
501 name from there."
502 (let* (state-name keymap
503 (macro-alist-var
504 (cond ((eq state 'vi-state)
505 (setq state-name "Vi state"
506 keymap viper-vi-kbd-map)
507 'viper-vi-kbd-macro-alist)
508 ((memq state '(insert-state replace-state))
509 (setq state-name "Insert state"
510 keymap viper-insert-kbd-map)
511 'viper-insert-kbd-macro-alist)
513 (setq state-name "Emacs state"
514 keymap viper-emacs-kbd-map)
515 'viper-emacs-kbd-macro-alist)
517 buf-mapping mode-mapping global-mapping
518 macro-pair macro-entry)
520 ;; Macro-name is usually a vector. However, command history or macros
521 ;; recorded in ~/.viper may appear as strings. So, convert to vectors.
522 (setq macro-name (viper-fixup-macro macro-name))
523 (if (viper-char-array-p macro-name)
524 (setq macro-name (viper-char-array-to-macro macro-name)))
526 (setq macro-entry (assoc macro-name (eval macro-alist-var)))
527 (if (= (length macro-name) 0)
528 (error "Can't unmap an empty macro name"))
529 (if (null macro-entry)
530 (error "%S is not mapped to a macro for %s in `%s'"
531 (viper-display-macro macro-name)
532 state-name (buffer-name)))
534 (setq buf-mapping (viper-kbd-buf-pair macro-entry)
535 mode-mapping (viper-kbd-mode-pair macro-entry)
536 global-mapping (viper-kbd-global-pair macro-entry))
538 (cond ((and (cdr buf-mapping)
539 (or (and (not (cdr mode-mapping)) (not (cdr global-mapping)))
540 (y-or-n-p
541 (format "Unmap %S for `%s' only? "
542 (viper-display-macro macro-name)
543 (buffer-name)))))
544 (setq macro-pair buf-mapping)
545 (message "%S is unmapped for %s in `%s'"
546 (viper-display-macro macro-name)
547 state-name (buffer-name)))
548 ((and (cdr mode-mapping)
549 (or (not (cdr global-mapping))
550 (y-or-n-p
551 (format "Unmap %S for the major mode `%S' only? "
552 (viper-display-macro macro-name)
553 major-mode))))
554 (setq macro-pair mode-mapping)
555 (message "%S is unmapped for %s in %S"
556 (viper-display-macro macro-name) state-name major-mode))
557 ((cdr (setq macro-pair global-mapping))
558 (message
559 "Global mapping for %S in %s is removed"
560 (viper-display-macro macro-name) state-name))
561 (t (error "%S is not mapped to a macro for %s in `%s'"
562 (viper-display-macro macro-name)
563 state-name (buffer-name))))
564 (setcdr macro-pair nil)
565 (or (cdr buf-mapping)
566 (cdr mode-mapping)
567 (cdr global-mapping)
568 (progn
569 (set macro-alist-var (delq macro-entry (eval macro-alist-var)))
570 (if (viper-can-release-key (aref macro-name 0)
571 (eval macro-alist-var))
572 (define-key
573 keymap
574 (vector (viper-key-to-emacs-key (aref macro-name 0)))
575 nil))
579 ;; Check if MACRO-ALIST has an entry for a macro name starting with
580 ;; CHAR. If not, this indicates that the binding for this char
581 ;; in viper-vi/insert-kbd-map can be released.
582 (defun viper-can-release-key (char macro-alist)
583 (let ((lis macro-alist)
584 (can-release t)
585 macro-name)
587 (while (and lis can-release)
588 (setq macro-name (car (car lis)))
589 (if (eq char (aref macro-name 0))
590 (setq can-release nil))
591 (setq lis (cdr lis)))
592 can-release))
595 (defun viper-exec-mapped-kbd-macro (count)
596 "Dispatch kbd macro."
597 (interactive "P")
598 (let* ((macro-alist (cond ((eq viper-current-state 'vi-state)
599 viper-vi-kbd-macro-alist)
600 ((memq viper-current-state
601 '(insert-state replace-state))
602 viper-insert-kbd-macro-alist)
604 viper-emacs-kbd-macro-alist)))
605 (unmatched-suffix "")
606 ;; Macros and keys are executed with other macros turned off
607 ;; For macros, this is done to avoid macro recursion
608 viper-vi-kbd-minor-mode viper-insert-kbd-minor-mode
609 viper-emacs-kbd-minor-mode
610 next-best-match keyseq event-seq
611 macro-first-char macro-alist-elt macro-body
612 command)
614 (setq macro-first-char last-command-event
615 event-seq (viper-read-fast-keysequence macro-first-char macro-alist)
616 keyseq (viper-events-to-macro event-seq)
617 macro-alist-elt (assoc keyseq macro-alist)
618 next-best-match (viper-find-best-matching-macro macro-alist keyseq))
620 (if (null macro-alist-elt)
621 (setq macro-alist-elt (car next-best-match)
622 unmatched-suffix (viper-subseq event-seq (cdr next-best-match))))
624 (cond ((null macro-alist-elt))
625 ((setq macro-body (viper-kbd-buf-definition macro-alist-elt)))
626 ((setq macro-body (viper-kbd-mode-definition macro-alist-elt)))
627 ((setq macro-body (viper-kbd-global-definition macro-alist-elt))))
629 ;; when defining keyboard macro, don't use the macro mappings
630 (if (and macro-body (not defining-kbd-macro))
631 ;; block cmd executed as part of a macro from entering command history
632 (let ((command-history command-history))
633 (setq viper-this-kbd-macro (car macro-alist-elt))
634 (execute-kbd-macro (viper-macro-to-events macro-body) count)
635 (setq viper-this-kbd-macro nil
636 viper-last-kbd-macro (car macro-alist-elt))
637 (viper-set-unread-command-events unmatched-suffix))
638 ;; If not a macro, or the macro is suppressed while defining another
639 ;; macro, put keyseq back on the event queue
640 (viper-set-unread-command-events event-seq)
641 ;; if the user typed arg, then use it if prefix arg is not set by
642 ;; some other command (setting prefix arg can happen if we do, say,
643 ;; 2dw and there is a macro starting with 2. Then control will go to
644 ;; this routine
645 (or prefix-arg (setq prefix-arg count))
646 (setq command (key-binding (read-key-sequence nil)))
647 (if (commandp command)
648 (command-execute command)
649 (beep 1)))
654 ;;; Displaying and completing macros
656 (defun viper-describe-kbd-macros ()
657 "Show currently defined keyboard macros."
658 (interactive)
659 (with-output-to-temp-buffer " *viper-info*"
660 (princ "Macros in Vi state:\n===================\n")
661 (mapcar 'viper-describe-one-macro viper-vi-kbd-macro-alist)
662 (princ "\n\nMacros in Insert and Replace states:\n====================================\n")
663 (mapcar 'viper-describe-one-macro viper-insert-kbd-macro-alist)
664 (princ "\n\nMacros in Emacs state:\n======================\n")
665 (mapcar 'viper-describe-one-macro viper-emacs-kbd-macro-alist)
668 (defun viper-describe-one-macro (macro)
669 (princ (format "\n *** Mappings for %S:\n ------------\n"
670 (viper-display-macro (car macro))))
671 (princ " ** Buffer-specific:")
672 (if (viper-kbd-buf-alist macro)
673 (mapcar 'viper-describe-one-macro-elt (viper-kbd-buf-alist macro))
674 (princ " none\n"))
675 (princ "\n ** Mode-specific:")
676 (if (viper-kbd-mode-alist macro)
677 (mapcar 'viper-describe-one-macro-elt (viper-kbd-mode-alist macro))
678 (princ " none\n"))
679 (princ "\n ** Global:")
680 (if (viper-kbd-global-definition macro)
681 (princ (format "\n %S" (cdr (viper-kbd-global-pair macro))))
682 (princ " none"))
683 (princ "\n"))
685 (defun viper-describe-one-macro-elt (elt)
686 (let ((name (car elt))
687 (defn (cdr elt)))
688 (princ (format "\n * %S:\n %S\n" name defn))))
692 ;; check if SEQ is a prefix of some car of an element in ALIST
693 (defun viper-keyseq-is-a-possible-macro (seq alist)
694 (let ((converted-seq (viper-events-to-macro seq)))
695 (eval (cons 'or
696 (mapcar
697 (lambda (elt) (viper-prefix-subseq-p converted-seq elt))
698 (viper-this-buffer-macros alist))))))
700 ;; whether SEQ1 is a prefix of SEQ2
701 (defun viper-prefix-subseq-p (seq1 seq2)
702 (let ((len1 (length seq1))
703 (len2 (length seq2)))
704 (if (<= len1 len2)
705 (equal seq1 (viper-subseq seq2 0 len1)))))
707 ;; find the longest common prefix
708 (defun viper-common-seq-prefix (&rest seqs)
709 (let* ((first (car seqs))
710 (rest (cdr seqs))
711 (pref [])
712 (idx 0)
713 len)
714 (if (= (length seqs) 0)
715 (setq len 0)
716 (setq len (apply 'min (mapcar 'length seqs))))
717 (while (< idx len)
718 (if (eval (cons 'and
719 (mapcar (lambda (s) (equal (elt first idx) (elt s idx)))
720 rest)))
721 (setq pref (vconcat pref (vector (elt first idx)))))
722 (setq idx (1+ idx)))
723 pref))
725 ;; get all sequences that match PREFIX from a given A-LIST
726 (defun viper-extract-matching-alist-members (pref alist)
727 (delq nil (mapcar (lambda (elt) (if (viper-prefix-subseq-p pref elt) elt))
728 (viper-this-buffer-macros alist))))
730 (defun viper-do-sequence-completion (seq alist compl-message)
731 (let* ((matches (viper-extract-matching-alist-members seq alist))
732 (new-seq (apply 'viper-common-seq-prefix matches))
734 (cond ((and (equal seq new-seq) (= (length matches) 1))
735 (message "%s (Sole completion)" compl-message)
736 (sit-for 2))
737 ((null matches)
738 (message "%s (No match)" compl-message)
739 (sit-for 2)
740 (setq new-seq seq))
741 ((member seq matches)
742 (message "%s (Complete, but not unique)" compl-message)
743 (sit-for 2)
744 (viper-display-vector-completions matches))
745 ((equal seq new-seq)
746 (viper-display-vector-completions matches)))
747 new-seq))
750 (defun viper-display-vector-completions (list)
751 (with-output-to-temp-buffer "*Completions*"
752 (display-completion-list
753 (mapcar 'prin1-to-string
754 (mapcar 'viper-display-macro list)))))
758 ;; alist is the alist of macros
759 ;; str is the fast key sequence entered
760 ;; returns: (matching-macro-def . unmatched-suffix-start-index)
761 (defun viper-find-best-matching-macro (alist str)
762 (let ((lis alist)
763 (def-len 0)
764 (str-len (length str))
765 match unmatched-start-idx found macro-def)
766 (while (and (not found) lis)
767 (setq macro-def (car lis)
768 def-len (length (car macro-def)))
769 (if (and (>= str-len def-len)
770 (equal (car macro-def) (viper-subseq str 0 def-len)))
771 (if (or (viper-kbd-buf-definition macro-def)
772 (viper-kbd-mode-definition macro-def)
773 (viper-kbd-global-definition macro-def))
774 (setq found t))
776 (setq lis (cdr lis)))
778 (if found
779 (setq match macro-def
780 unmatched-start-idx def-len)
781 (setq match nil
782 unmatched-start-idx 0))
784 (cons match unmatched-start-idx)))
788 ;; returns a list of names of macros defined for the current buffer
789 (defun viper-this-buffer-macros (macro-alist)
790 (let (candidates)
791 (setq candidates
792 (mapcar (lambda (elt)
793 (if (or (viper-kbd-buf-definition elt)
794 (viper-kbd-mode-definition elt)
795 (viper-kbd-global-definition elt))
796 (car elt)))
797 macro-alist))
798 (setq candidates (delq nil candidates))))
801 ;; if seq of Viper key symbols (representing a macro) can be converted to a
802 ;; string--do so. Otherwise, do nothing.
803 (defun viper-display-macro (macro-name-or-body)
804 (cond ((viper-char-symbol-sequence-p macro-name-or-body)
805 (mapconcat 'symbol-name macro-name-or-body ""))
806 ((viper-char-array-p macro-name-or-body)
807 (mapconcat 'char-to-string macro-name-or-body ""))
808 (t macro-name-or-body)))
810 ;; convert sequence of events (that came presumably from emacs kbd macro) into
811 ;; Viper's macro, which is a vector of the form
812 ;; [ desc desc ... ]
813 ;; Each desc is either a symbol of (meta symb), (shift symb), etc.
814 ;; Here we purge events that happen to be lists. In most cases, these events
815 ;; got into a macro definition unintentionally; say, when the user moves mouse
816 ;; during a macro definition, then something like (switch-frame ...) might get
817 ;; in. Another reason for purging lists-events is that we can't store them in
818 ;; textual form (say, in .emacs) and then read them back.
819 (defun viper-events-to-macro (event-seq)
820 (vconcat (delq nil (mapcar (lambda (elt) (if (consp elt)
822 (viper-event-key elt)))
823 event-seq))))
825 ;; convert strings or arrays of characters to Viper macro form
826 (defun viper-char-array-to-macro (array)
827 (let ((vec (vconcat array))
828 macro)
829 (if viper-xemacs-p
830 (setq macro (mapcar 'character-to-event vec))
831 (setq macro vec))
832 (vconcat (mapcar 'viper-event-key macro))))
834 ;; For macros bodies and names, goes over MACRO and checks if all members are
835 ;; names of keys (actually, it only checks if they are symbols or lists
836 ;; if a digit is found, it is converted into a symbol (e.g., 0 -> \0, etc).
837 ;; If MACRO is not a list or vector -- doesn't change MACRO.
838 (defun viper-fixup-macro (macro)
839 (let ((len (length macro))
840 (idx 0)
841 elt break)
842 (if (or (vectorp macro) (listp macro))
843 (while (and (< idx len) (not break))
844 (setq elt (elt macro idx))
845 (cond ((numberp elt)
846 ;; fix number
847 (if (and (<= 0 elt) (<= elt 9))
848 (cond ((arrayp macro)
849 (aset macro
851 (intern (char-to-string (+ ?0 elt)))))
852 ((listp macro)
853 (setcar (nthcdr idx macro)
854 (intern (char-to-string (+ ?0 elt)))))
856 ((listp elt)
857 (viper-fixup-macro elt))
858 ((symbolp elt) nil)
859 (t (setq break t)))
860 (setq idx (1+ idx))))
862 (if break
863 (error "Wrong type macro component, symbol-or-listp, %S" elt)
864 macro)))
866 (defun viper-macro-to-events (macro-body)
867 (vconcat (mapcar 'viper-key-to-emacs-key macro-body)))
871 ;;; Reading fast key sequences
873 ;; Assuming that CHAR was the first character in a fast succession of key
874 ;; strokes, read the rest. Return the vector of keys that was entered in
875 ;; this fast succession of key strokes.
876 ;; A fast keysequence is one that is terminated by a pause longer than
877 ;; viper-fast-keyseq-timeout.
878 (defun viper-read-fast-keysequence (event macro-alist)
879 (let ((lis (vector event))
880 next-event)
881 (while (and (viper-fast-keysequence-p)
882 (viper-keyseq-is-a-possible-macro lis macro-alist))
883 (setq next-event (viper-read-key))
884 ;;(setq next-event (viper-read-event))
885 (or (viper-mouse-event-p next-event)
886 (setq lis (vconcat lis (vector next-event)))))
887 lis))
890 ;;; Keyboard macros in registers
892 ;; sets register to last-kbd-macro carefully.
893 (defun viper-set-register-macro (reg)
894 (if (get-register reg)
895 (if (y-or-n-p "Register contains data. Overwrite? ")
897 (error
898 "Macro not saved in register. Can still be invoked via `C-x e'")))
899 (set-register reg last-kbd-macro))
901 (defun viper-register-macro (count)
902 "Keyboard macros in registers - a modified \@ command."
903 (interactive "P")
904 (let ((reg (downcase (read-char))))
905 (cond ((or (and (<= ?a reg) (<= reg ?z)))
906 (setq viper-last-macro-reg reg)
907 (if defining-kbd-macro
908 (progn
909 (end-kbd-macro)
910 (viper-set-register-macro reg))
911 (execute-kbd-macro (get-register reg) count)))
912 ((or (= ?@ reg) (= ?\^j reg) (= ?\^m reg))
913 (if viper-last-macro-reg
915 (error "No previous kbd macro"))
916 (execute-kbd-macro (get-register viper-last-macro-reg) count))
917 ((= ?\# reg)
918 (start-kbd-macro count))
919 ((= ?! reg)
920 (setq reg (downcase (read-char)))
921 (if (or (and (<= ?a reg) (<= reg ?z)))
922 (progn
923 (setq viper-last-macro-reg reg)
924 (viper-set-register-macro reg))))
926 (error "`%c': Unknown register" reg)))))
929 (defun viper-global-execute ()
930 "Call last keyboad macro for each line in the region."
931 (if (> (point) (mark t)) (exchange-point-and-mark))
932 (beginning-of-line)
933 (call-last-kbd-macro)
934 (while (< (point) (mark t))
935 (forward-line 1)
936 (beginning-of-line)
937 (call-last-kbd-macro)))
940 ;;; arch-tag: ecd3cc5c-8cd0-4bbe-b2ec-7e75a4b7d0aa
941 ;;; viper-macs.el ends here