1 ;;; calc-yank.el --- kill-ring functionality for Calc
3 ;; Copyright (C) 1990, 1991, 1992, 1993, 2001 Free Software Foundation, Inc.
5 ;; Author: David Gillespie <daveg@synaptics.com>
6 ;; Maintainer: Jay Belanger <belanger@truman.edu>
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is distributed in the hope that it will be useful,
11 ;; but WITHOUT ANY WARRANTY. No author or distributor
12 ;; accepts responsibility to anyone for the consequences of using it
13 ;; or for whether it serves any particular purpose or works at all,
14 ;; unless he says so in writing. Refer to the GNU Emacs General Public
15 ;; License for full details.
17 ;; Everyone is granted permission to copy, modify and redistribute
18 ;; GNU Emacs, but only under the conditions described in the
19 ;; GNU Emacs General Public License. A copy of this license is
20 ;; supposed to have been given to you along with GNU Emacs so you
21 ;; can know your rights and responsibilities. It should be in a
22 ;; file named COPYING. Among other things, the copyright notice
23 ;; and this notice must be preserved on all copies.
29 ;; This file is autoloaded from calc-ext.el.
34 ;;; Kill ring commands.
36 (defun calc-kill (nn &optional no-delete)
38 (if (eq major-mode 'calc-mode)
41 (calc-set-command-flag 'no-align)
42 (let ((num (max (calc-locate-cursor-element (point)) 1))
43 (n (prefix-numeric-value nn)))
50 (let ((stuff (calc-top-list n (- num n -1))))
51 (calc-cursor-stack-index num)
52 (let ((first (point)))
53 (calc-cursor-stack-index (- num n))
55 (backward-char 1)) ; don't include newline for raw C-k
56 (copy-region-as-kill first (point))
58 (calc-pop-stack n (- num n -1))))
59 (setq calc-last-kill (cons (car kill-ring) stuff)))))
62 (defun calc-force-refresh ()
63 (if (or calc-executing-macro calc-display-dirty)
64 (let ((calc-executing-macro nil))
67 (defun calc-locate-cursor-element (pt)
69 (goto-char (point-max))
70 (calc-locate-cursor-scan (- calc-stack-top) calc-stack pt)))
72 (defun calc-locate-cursor-scan (n stack pt)
73 (if (or (<= (point) pt)
76 (forward-line (- (nth 1 (car stack))))
77 (calc-locate-cursor-scan (1+ n) (cdr stack) pt)))
79 (defun calc-kill-region (top bot &optional no-delete)
81 (if (eq major-mode 'calc-mode)
84 (calc-set-command-flag 'no-align)
85 (let* ((top-num (calc-locate-cursor-element top))
86 (bot-num (calc-locate-cursor-element (1- bot)))
87 (num (- top-num bot-num -1)))
88 (copy-region-as-kill top bot)
89 (setq calc-last-kill (cons (car kill-ring)
90 (calc-top-list num bot-num)))
92 (calc-pop-stack num bot-num))))
94 (copy-region-as-kill top bot)
95 (kill-region top bot))))
97 (defun calc-copy-as-kill (n)
101 (defun calc-copy-region-as-kill (top bot)
103 (calc-kill-region top bot t))
105 ;;; This function uses calc-last-kill if possible to get an exact result,
106 ;;; otherwise it just parses the yanked string.
107 ;;; Modified to use Emacs 19 extended concept of kill-ring. -- daveg 12/15/96
111 (calc-pop-push-record-list
113 (let ((thing (if (fboundp 'current-kill)
115 (car kill-ring-yank-pointer))))
116 (if (eq (car-safe calc-last-kill) thing)
119 (let ((val (math-read-exprs (calc-clean-newlines thing))))
120 (if (eq (car-safe val) 'error)
122 (setq val (math-read-exprs thing))
123 (if (eq (car-safe val) 'error)
124 (error "Bad format in yanked data")
128 (defun calc-clean-newlines (s)
131 ;; Omit leading/trailing whitespace
132 ((or (string-match "\\`[ \n\r]+\\([^\001]*\\)\\'" s)
133 (string-match "\\`\\([^\001]*\\)[ \n\r]+\\'" s))
134 (calc-clean-newlines (math-match-substring s 1)))
136 ;; Convert newlines to commas
137 ((string-match "\\`\\(.*\\)[\n\r]+\\([^\001]*\\)\\'" s)
138 (calc-clean-newlines (concat (math-match-substring s 1) ","
139 (math-match-substring s 2))))
144 (defun calc-do-grab-region (top bot arg)
145 (when (memq major-mode '(calc-mode calc-trail-mode))
146 (error "This command works only in a regular text buffer"))
147 (let* ((from-buffer (current-buffer))
148 (calc-was-started (get-buffer-window "*Calculator*"))
154 (setq arg (prefix-numeric-value arg))
168 (setq data (buffer-substring top bot))
171 (setq vals (math-read-expr data))
172 (setq vals (math-read-expr (concat "[" data "]")))
173 (and (eq (car-safe vals) 'vec)
175 (eq (car-safe (nth 1 vals)) 'vec)
176 (setq vals (nth 1 vals))))
177 (if (eq (car-safe vals) 'error)
180 (pop-to-buffer from-buffer)
182 (switch-to-buffer from-buffer))
184 (forward-char (+ (nth 1 vals) (if single 0 1)))
185 (error (nth 2 vals))))
187 (calc-enter-result 0 "grab" vals))))
190 (defun calc-do-grab-rectangle (top bot arg &optional reduce)
191 (and (memq major-mode '(calc-mode calc-trail-mode))
192 (error "This command works only in a regular text buffer"))
193 (let* ((col1 (save-excursion (goto-char top) (current-column)))
194 (col2 (save-excursion (goto-char bot) (current-column)))
195 (from-buffer (current-buffer))
196 (calc-was-started (get-buffer-window "*Calculator*"))
197 data mat vals lnum pt pos)
201 (error "Point and mark must be at beginning of line, or define a rectangle"))
203 (while (< (point) bot)
206 (setq data (cons (buffer-substring pt (1- (point))) data)))
207 (setq data (nreverse data)))
208 (setq data (extract-rectangle top bot)))
210 (setq mat (list 'vec)
213 (setq arg (if (consp arg) 0 (prefix-numeric-value arg))))
221 (let ((w (length (car data)))
226 (math-read-expr (substring (car data) pos))
227 (math-read-expr (substring (car data) pos j))))
228 (if (eq (car-safe v) 'error)
230 (setq vals (nconc vals (list v))
232 (if (string-match "\\` *-?[0-9][0-9]?[0-9]?[0-9]?[0-9]?[0-9]? *\\'"
234 (setq vals (list 'vec (string-to-int (car data))))
236 (string-match "[[{][^][{}]*[]}]" (car data)))
237 (setq pos (match-beginning 0)
238 vals (math-read-expr (math-match-substring (car data) 0)))
239 (let ((s (if (string-match
240 "\\`\\([0-9]+:[ \t]\\)?\\(.*[^, \t]\\)[, \t]*\\'"
242 (math-match-substring (car data) 2)
245 vals (math-read-expr (concat "[" s "]")))
246 (if (eq (car-safe vals) 'error)
247 (let ((v2 (math-read-expr s)))
248 (unless (eq (car-safe v2) 'error)
249 (setq vals (list 'vec v2)))))))))
250 (if (eq (car-safe vals) 'error)
253 (pop-to-buffer from-buffer)
255 (switch-to-buffer from-buffer))
258 (forward-char (+ (nth 1 vals) (min col1 col2) pos))
259 (error (nth 2 vals))))
260 (unless (equal vals '(vec))
261 (setq mat (cons vals mat)))
262 (setq data (cdr data)
266 (calc-enter-result 0 "grb+" (list reduce '(var add var-add)
268 (calc-enter-result 0 "grab" (nreverse mat))))))
271 (defun calc-copy-to-buffer (nn)
272 "Copy the top of stack into an editing buffer."
274 (let ((thebuf (and (not (memq major-mode '(calc-mode calc-trail-mode)))
281 (let ((n (prefix-numeric-value nn))
282 (eat-lnums calc-line-numbering)
283 (big-offset (if (eq calc-language 'big) 1 0))
285 (setq oldbuf (current-buffer)
287 (calc-find-writable-buffer (buffer-list) 0)
288 (calc-find-writable-buffer (buffer-list) 1)
289 (error "No other buffer")))
290 (cond ((and (or (null nn)
292 (= (calc-substack-height 0)
293 (- (1- (calc-substack-height 1)) big-offset)))
294 (calc-cursor-stack-index 1)
296 (if calc-line-numbering "[0-9]+: *[^ \n]" " *[^ \n]"))
297 (goto-char (1- (match-end 0))))
300 (calc-cursor-stack-index 0)
301 (setq bot (- (1- (point)) big-offset)))
303 (calc-cursor-stack-index n)
305 (calc-cursor-stack-index 0)
306 (setq bot (- (point) big-offset)))
308 (calc-cursor-stack-index (- n))
310 (calc-cursor-stack-index (1- (- n)))
313 (goto-char (point-min))
316 (calc-cursor-stack-index 0)
321 (kill-region (region-beginning) (region-end)))
322 (push-mark (point) t)
323 (if (and overwrite-mode (not (consp nn)))
324 (calc-overwrite-string (save-excursion
326 (buffer-substring top bot))
328 (or (bolp) (setq eat-lnums nil))
329 (insert-buffer-substring oldbuf top bot)
332 (while (and (> (point) (mark))
335 (>= (point) (mark))))
340 (setq movept (point)))
341 (when (get-buffer-window (current-buffer))
342 (set-window-point (get-buffer-window (current-buffer))
346 (when (and (consp nn)
349 (switch-to-buffer newbuf))))
351 (defun calc-overwrite-string (str eat-lnums)
352 (when (string-match "\n\\'" str)
353 (setq str (substring str 0 -1)))
355 (setq str (substring str 4)))
356 (if (and (string-match "\\`[-+]?[0-9.]+\\(e-?[0-9]+\\)?\\'" str)
357 (looking-at "[-+]?[0-9.]+\\(e-?[0-9]+\\)?"))
359 (delete-region (point) (match-end 0))
362 (while (< i (length str))
363 (if (= (setq last-command-char (aref str i)) ?\n)
364 (or (= i (1- (length str)))
367 (delete-region pt (point))
371 (if eat-lnums (setq i (+ i 4)))))
372 (self-insert-command 1))
375 ;;; First, require that buffer is visible and does not begin with "*"
376 ;;; Second, require only that it not begin with "*Calc"
377 (defun calc-find-writable-buffer (buf mode)
379 (if (or (string-match "\\`\\( .*\\|\\*Calc.*\\)"
380 (buffer-name (car buf)))
382 (or (string-match "\\`\\*.*" (buffer-name (car buf)))
383 (not (get-buffer-window (car buf))))))
384 (calc-find-writable-buffer (cdr buf) mode)
392 (setq n (calc-stack-size)))
395 (list (math-showing-full-precision
397 (function (lambda (x)
398 (math-format-flat-expr x 0)))
401 (if (math-vectorp x) (setq allow-ret t))
402 (math-format-nice-expr x (frame-width)))))
405 (calc-top-list 1 (- n)))))))
406 (calc-edit-mode (list 'calc-finish-stack-edit (or flag n)) allow-ret)
408 (insert (car list) "\n")
409 (setq list (cdr list)))))
410 (calc-show-edit-buffer))
412 (defun calc-alg-edit (str)
413 (calc-edit-mode '(calc-finish-stack-edit 0))
414 (calc-show-edit-buffer)
417 (calc-set-command-flag 'do-edit))
419 (defvar calc-edit-mode-map nil "Keymap for use by the calc-edit command.")
420 (if calc-edit-mode-map
422 (setq calc-edit-mode-map (make-sparse-keymap))
423 (define-key calc-edit-mode-map "\n" 'calc-edit-finish)
424 (define-key calc-edit-mode-map "\r" 'calc-edit-return)
425 (define-key calc-edit-mode-map "\C-c\C-c" 'calc-edit-finish))
427 (defvar calc-original-buffer)
428 (defvar calc-return-buffer)
429 (defvar calc-one-window)
430 (defvar calc-edit-handler)
431 (defvar calc-restore-trail)
432 (defvar calc-allow-ret)
434 (defun calc-edit-mode (&optional handler allow-ret title)
435 "Calculator editing mode. Press RET, LFD, or C-c C-c to finish.
436 To cancel the edit, simply kill the *Calc Edit* buffer."
439 (error "This command can be used only indirectly through calc-edit"))
440 (let ((oldbuf (current-buffer))
441 (buf (get-buffer-create "*Calc Edit*")))
443 (kill-all-local-variables)
444 (use-local-map calc-edit-mode-map)
445 (setq buffer-read-only nil)
446 (setq truncate-lines nil)
447 (setq major-mode 'calc-edit-mode)
448 (setq mode-name "Calc Edit")
449 (run-hooks 'calc-edit-mode-hook)
450 (make-local-variable 'calc-original-buffer)
451 (setq calc-original-buffer oldbuf)
452 (make-local-variable 'calc-return-buffer)
453 (setq calc-return-buffer oldbuf)
454 (make-local-variable 'calc-one-window)
455 (setq calc-one-window (and (one-window-p t) pop-up-windows))
456 (make-local-variable 'calc-edit-handler)
457 (setq calc-edit-handler handler)
458 (make-local-variable 'calc-restore-trail)
459 (setq calc-restore-trail (get-buffer-window (calc-trail-buffer)))
460 (make-local-variable 'calc-allow-ret)
461 (setq calc-allow-ret allow-ret)
463 (insert (or title title "Calc Edit Mode")
465 (if (eq (lookup-key (current-global-map) "\e#") 'calc-dispatch)
467 (if allow-ret "C-c C-c" "RET"))
469 (if (eq (lookup-key (current-global-map) "\e#") 'calc-dispatch)
473 (put 'calc-edit-mode 'mode-class 'special)
475 (defun calc-show-edit-buffer ()
476 (let ((buf (current-buffer)))
477 (if (and (one-window-p t) pop-up-windows)
478 (pop-to-buffer (get-buffer-create "*Calc Edit*"))
479 (and calc-embedded-info (get-buffer-window (aref calc-embedded-info 1))
480 (select-window (get-buffer-window (aref calc-embedded-info 1))))
481 (switch-to-buffer (get-buffer-create "*Calc Edit*")))
482 (setq calc-return-buffer buf)
483 (if (and (< (window-width) (frame-width))
485 (let ((win (get-buffer-window (calc-trail-buffer))))
487 (delete-window win))))
488 (set-buffer-modified-p nil)
489 (goto-char (point-min))
492 (defun calc-edit-return ()
494 (if (and (boundp 'calc-allow-ret) calc-allow-ret)
498 ;; The variable calc-edit-disp-trail is local to calc-edit finish, but
499 ;; is used by calc-finish-selection-edit and calc-finish-stack-edit.
500 (defvar calc-edit-disp-trail)
502 (defun calc-edit-finish (&optional keep)
503 "Finish calc-edit mode. Parse buffer contents and push them on the stack."
505 (message "Working...")
506 (or (and (boundp 'calc-original-buffer)
507 (boundp 'calc-return-buffer)
508 (boundp 'calc-one-window)
509 (boundp 'calc-edit-handler)
510 (boundp 'calc-restore-trail)
511 (eq major-mode 'calc-edit-mode))
512 (error "This command is valid only in buffers created by calc-edit"))
513 (let ((buf (current-buffer))
514 (original calc-original-buffer)
515 (return calc-return-buffer)
516 (one-window calc-one-window)
517 (calc-edit-disp-trail calc-restore-trail))
519 (when (or (null (buffer-name original))
521 (set-buffer original)
522 (not (eq major-mode 'calc-mode))))
523 (error "Original calculator buffer has been corrupted")))
524 (goto-char (point-min))
525 (when (looking-at "Calc Edit\\|Editing ")
527 (if (buffer-modified-p)
528 (eval calc-edit-handler))
531 (if (get-buffer-window return)
532 (select-window (get-buffer-window return))
533 (switch-to-buffer return))
537 (if calc-edit-disp-trail
539 (calc-trail-display 1 t)))
542 (defun calc-edit-cancel ()
543 "Cancel calc-edit mode. Ignore the Calc Edit buffer and don't change stack."
545 (let ((calc-edit-handler nil))
547 (message "(Cancelled)"))
549 (defun calc-finish-stack-edit (num)
550 (let ((buf (current-buffer))
551 (str (buffer-substring (point) (point-max)))
554 (if (and (integerp num) (> num 1))
555 (while (setq pos (string-match "\n." str))
557 (switch-to-buffer calc-original-buffer)
558 (let ((vals (let ((calc-language nil)
559 (math-expr-opers math-standard-opers))
560 (and (string-match "[^\n\t ]" str)
561 (math-read-exprs str)))))
562 (when (eq (car-safe vals) 'error)
563 (switch-to-buffer buf)
564 (goto-char (+ start (nth 1 vals)))
565 (error (nth 2 vals)))
570 (calc-refresh-evaltos num))
571 (if calc-edit-disp-trail
572 (calc-trail-display 1 t))
574 (let ((calc-simplify-mode (if (eq last-command-char ?\C-j)
576 calc-simplify-mode)))
578 (calc-enter-result num "edit" vals)
579 (calc-enter-result 1 "edit" vals (- num))))))))))
583 ;;; arch-tag: ca61019e-caca-4daa-b32c-b6afe372d5b5
584 ;;; calc-yank.el ends here