1 ;;; calc-yank.el --- kill-ring functionality for Calc
3 ;; Copyright (C) 1990, 1991, 1992, 1993, 2001, 2002, 2003, 2004,
4 ;; 2005, 2006 Free Software Foundation, Inc.
6 ;; Author: David Gillespie <daveg@synaptics.com>
7 ;; Maintainer: Jay Belanger <belanger@truman.edu>
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is distributed in the hope that it will be useful,
12 ;; but WITHOUT ANY WARRANTY. No author or distributor
13 ;; accepts responsibility to anyone for the consequences of using it
14 ;; or for whether it serves any particular purpose or works at all,
15 ;; unless he says so in writing. Refer to the GNU Emacs General Public
16 ;; License for full details.
18 ;; Everyone is granted permission to copy, modify and redistribute
19 ;; GNU Emacs, but only under the conditions described in the
20 ;; GNU Emacs General Public License. A copy of this license is
21 ;; supposed to have been given to you along with GNU Emacs so you
22 ;; can know your rights and responsibilities. It should be in a
23 ;; file named COPYING. Among other things, the copyright notice
24 ;; and this notice must be preserved on all copies.
30 ;; This file is autoloaded from calc-ext.el.
35 ;;; Kill ring commands.
37 (defun calc-kill (nn &optional no-delete)
39 (if (eq major-mode 'calc-mode)
42 (calc-set-command-flag 'no-align)
43 (let ((num (max (calc-locate-cursor-element (point)) 1))
44 (n (prefix-numeric-value nn)))
51 (let ((stuff (calc-top-list n (- num n -1))))
52 (calc-cursor-stack-index num)
53 (let ((first (point)))
54 (calc-cursor-stack-index (- num n))
56 (backward-char 1)) ; don't include newline for raw C-k
57 (copy-region-as-kill first (point))
59 (calc-pop-stack n (- num n -1))))
60 (setq calc-last-kill (cons (car kill-ring) stuff)))))
63 (defun calc-force-refresh ()
64 (if (or calc-executing-macro calc-display-dirty)
65 (let ((calc-executing-macro nil))
68 (defun calc-locate-cursor-element (pt)
70 (goto-char (point-max))
71 (calc-locate-cursor-scan (- calc-stack-top) calc-stack pt)))
73 (defun calc-locate-cursor-scan (n stack pt)
74 (if (or (<= (point) pt)
77 (forward-line (- (nth 1 (car stack))))
78 (calc-locate-cursor-scan (1+ n) (cdr stack) pt)))
80 (defun calc-kill-region (top bot &optional no-delete)
82 (if (eq major-mode 'calc-mode)
85 (calc-set-command-flag 'no-align)
86 (let* ((top-num (calc-locate-cursor-element top))
87 (bot-num (calc-locate-cursor-element (1- bot)))
88 (num (- top-num bot-num -1)))
89 (copy-region-as-kill top bot)
90 (setq calc-last-kill (cons (car kill-ring)
91 (calc-top-list num bot-num)))
93 (calc-pop-stack num bot-num))))
95 (copy-region-as-kill top bot)
96 (kill-region top bot))))
98 (defun calc-copy-as-kill (n)
102 (defun calc-copy-region-as-kill (top bot)
104 (calc-kill-region top bot t))
106 ;;; This function uses calc-last-kill if possible to get an exact result,
107 ;;; otherwise it just parses the yanked string.
108 ;;; Modified to use Emacs 19 extended concept of kill-ring. -- daveg 12/15/96
112 (calc-pop-push-record-list
114 (let ((thing (if (fboundp 'current-kill)
116 (car kill-ring-yank-pointer))))
117 (if (eq (car-safe calc-last-kill) thing)
120 (let ((val (math-read-exprs (calc-clean-newlines thing))))
121 (if (eq (car-safe val) 'error)
123 (setq val (math-read-exprs thing))
124 (if (eq (car-safe val) 'error)
125 (error "Bad format in yanked data")
129 (defun calc-clean-newlines (s)
132 ;; Omit leading/trailing whitespace
133 ((or (string-match "\\`[ \n\r]+\\([^\001]*\\)\\'" s)
134 (string-match "\\`\\([^\001]*\\)[ \n\r]+\\'" s))
135 (calc-clean-newlines (math-match-substring s 1)))
137 ;; Convert newlines to commas
138 ((string-match "\\`\\(.*\\)[\n\r]+\\([^\001]*\\)\\'" s)
139 (calc-clean-newlines (concat (math-match-substring s 1) ","
140 (math-match-substring s 2))))
145 (defun calc-do-grab-region (top bot arg)
146 (when (memq major-mode '(calc-mode calc-trail-mode))
147 (error "This command works only in a regular text buffer"))
148 (let* ((from-buffer (current-buffer))
149 (calc-was-started (get-buffer-window "*Calculator*"))
155 (setq arg (prefix-numeric-value arg))
169 (setq data (buffer-substring top bot))
172 (setq vals (math-read-expr data))
173 (setq vals (math-read-expr (concat "[" data "]")))
174 (and (eq (car-safe vals) 'vec)
176 (eq (car-safe (nth 1 vals)) 'vec)
177 (setq vals (nth 1 vals))))
178 (if (eq (car-safe vals) 'error)
181 (pop-to-buffer from-buffer)
183 (switch-to-buffer from-buffer))
185 (forward-char (+ (nth 1 vals) (if single 0 1)))
186 (error (nth 2 vals))))
188 (calc-enter-result 0 "grab" vals))))
191 (defun calc-do-grab-rectangle (top bot arg &optional reduce)
192 (and (memq major-mode '(calc-mode calc-trail-mode))
193 (error "This command works only in a regular text buffer"))
194 (let* ((col1 (save-excursion (goto-char top) (current-column)))
195 (col2 (save-excursion (goto-char bot) (current-column)))
196 (from-buffer (current-buffer))
197 (calc-was-started (get-buffer-window "*Calculator*"))
198 data mat vals lnum pt pos)
202 (error "Point and mark must be at beginning of line, or define a rectangle"))
204 (while (< (point) bot)
207 (setq data (cons (buffer-substring pt (1- (point))) data)))
208 (setq data (nreverse data)))
209 (setq data (extract-rectangle top bot)))
211 (setq mat (list 'vec)
214 (setq arg (if (consp arg) 0 (prefix-numeric-value arg))))
222 (let ((w (length (car data)))
227 (math-read-expr (substring (car data) pos))
228 (math-read-expr (substring (car data) pos j))))
229 (if (eq (car-safe v) 'error)
231 (setq vals (nconc vals (list v))
233 (if (string-match "\\` *-?[0-9][0-9]?[0-9]?[0-9]?[0-9]?[0-9]? *\\'"
235 (setq vals (list 'vec (string-to-number (car data))))
237 (string-match "[[{][^][{}]*[]}]" (car data)))
238 (setq pos (match-beginning 0)
239 vals (math-read-expr (math-match-substring (car data) 0)))
240 (let ((s (if (string-match
241 "\\`\\([0-9]+:[ \t]\\)?\\(.*[^, \t]\\)[, \t]*\\'"
243 (math-match-substring (car data) 2)
246 vals (math-read-expr (concat "[" s "]")))
247 (if (eq (car-safe vals) 'error)
248 (let ((v2 (math-read-expr s)))
249 (unless (eq (car-safe v2) 'error)
250 (setq vals (list 'vec v2)))))))))
251 (if (eq (car-safe vals) 'error)
254 (pop-to-buffer from-buffer)
256 (switch-to-buffer from-buffer))
259 (forward-char (+ (nth 1 vals) (min col1 col2) pos))
260 (error (nth 2 vals))))
261 (unless (equal vals '(vec))
262 (setq mat (cons vals mat)))
263 (setq data (cdr data)
267 (calc-enter-result 0 "grb+" (list reduce '(var add var-add)
269 (calc-enter-result 0 "grab" (nreverse mat))))))
272 (defun calc-copy-to-buffer (nn)
273 "Copy the top of stack into an editing buffer."
275 (let ((thebuf (and (not (memq major-mode '(calc-mode calc-trail-mode)))
282 (let ((n (prefix-numeric-value nn))
283 (eat-lnums calc-line-numbering)
284 (big-offset (if (eq calc-language 'big) 1 0))
286 (setq oldbuf (current-buffer)
288 (calc-find-writable-buffer (buffer-list) 0)
289 (calc-find-writable-buffer (buffer-list) 1)
290 (error "No other buffer")))
291 (cond ((and (or (null nn)
293 (= (calc-substack-height 0)
294 (- (1- (calc-substack-height 1)) big-offset)))
295 (calc-cursor-stack-index 1)
297 (if calc-line-numbering "[0-9]+: *[^ \n]" " *[^ \n]"))
298 (goto-char (1- (match-end 0))))
301 (calc-cursor-stack-index 0)
302 (setq bot (- (1- (point)) big-offset)))
304 (calc-cursor-stack-index n)
306 (calc-cursor-stack-index 0)
307 (setq bot (- (point) big-offset)))
309 (calc-cursor-stack-index (- n))
311 (calc-cursor-stack-index (1- (- n)))
314 (goto-char (point-min))
317 (calc-cursor-stack-index 0)
322 (kill-region (region-beginning) (region-end)))
323 (push-mark (point) t)
324 (if (and overwrite-mode (not (consp nn)))
325 (calc-overwrite-string (save-excursion
327 (buffer-substring top bot))
329 (or (bolp) (setq eat-lnums nil))
330 (insert-buffer-substring oldbuf top bot)
333 (while (and (> (point) (mark))
336 (>= (point) (mark))))
341 (setq movept (point)))
342 (when (get-buffer-window (current-buffer))
343 (set-window-point (get-buffer-window (current-buffer))
347 (when (and (consp nn)
350 (switch-to-buffer newbuf))))
352 (defun calc-overwrite-string (str eat-lnums)
353 (when (string-match "\n\\'" str)
354 (setq str (substring str 0 -1)))
356 (setq str (substring str 4)))
357 (if (and (string-match "\\`[-+]?[0-9.]+\\(e-?[0-9]+\\)?\\'" str)
358 (looking-at "[-+]?[0-9.]+\\(e-?[0-9]+\\)?"))
360 (delete-region (point) (match-end 0))
363 (while (< i (length str))
364 (if (= (setq last-command-char (aref str i)) ?\n)
365 (or (= i (1- (length str)))
368 (delete-region pt (point))
372 (if eat-lnums (setq i (+ i 4)))))
373 (self-insert-command 1))
376 ;;; First, require that buffer is visible and does not begin with "*"
377 ;;; Second, require only that it not begin with "*Calc"
378 (defun calc-find-writable-buffer (buf mode)
380 (if (or (string-match "\\`\\( .*\\|\\*Calc.*\\)"
381 (buffer-name (car buf)))
383 (or (string-match "\\`\\*.*" (buffer-name (car buf)))
384 (not (get-buffer-window (car buf))))))
385 (calc-find-writable-buffer (cdr buf) mode)
393 (setq n (calc-stack-size)))
396 (list (math-showing-full-precision
398 (function (lambda (x)
399 (math-format-flat-expr x 0)))
402 (if (math-vectorp x) (setq allow-ret t))
403 (math-format-nice-expr x (frame-width)))))
406 (calc-top-list 1 (- n)))))))
407 (calc-edit-mode (list 'calc-finish-stack-edit (or flag n)) allow-ret)
409 (insert (car list) "\n")
410 (setq list (cdr list)))))
411 (calc-show-edit-buffer))
413 (defun calc-alg-edit (str)
414 (calc-edit-mode '(calc-finish-stack-edit 0))
415 (calc-show-edit-buffer)
418 (calc-set-command-flag 'do-edit))
420 (defvar calc-edit-mode-map nil "Keymap for use by the calc-edit command.")
421 (if calc-edit-mode-map
423 (setq calc-edit-mode-map (make-sparse-keymap))
424 (define-key calc-edit-mode-map "\n" 'calc-edit-finish)
425 (define-key calc-edit-mode-map "\r" 'calc-edit-return)
426 (define-key calc-edit-mode-map "\C-c\C-c" 'calc-edit-finish))
428 (defvar calc-original-buffer)
429 (defvar calc-return-buffer)
430 (defvar calc-one-window)
431 (defvar calc-edit-handler)
432 (defvar calc-restore-trail)
433 (defvar calc-allow-ret)
434 (defvar calc-edit-top)
436 (defun calc-edit-mode (&optional handler allow-ret title)
437 "Calculator editing mode. Press RET, LFD, or C-c C-c to finish.
438 To cancel the edit, simply kill the *Calc Edit* buffer."
441 (error "This command can be used only indirectly through calc-edit"))
442 (let ((oldbuf (current-buffer))
443 (buf (get-buffer-create "*Calc Edit*")))
445 (kill-all-local-variables)
446 (use-local-map calc-edit-mode-map)
447 (setq buffer-read-only nil)
448 (setq truncate-lines nil)
449 (setq major-mode 'calc-edit-mode)
450 (setq mode-name "Calc Edit")
451 (run-mode-hooks 'calc-edit-mode-hook)
452 (make-local-variable 'calc-original-buffer)
453 (setq calc-original-buffer oldbuf)
454 (make-local-variable 'calc-return-buffer)
455 (setq calc-return-buffer oldbuf)
456 (make-local-variable 'calc-one-window)
457 (setq calc-one-window (and (one-window-p t) pop-up-windows))
458 (make-local-variable 'calc-edit-handler)
459 (setq calc-edit-handler handler)
460 (make-local-variable 'calc-restore-trail)
461 (setq calc-restore-trail (get-buffer-window (calc-trail-buffer)))
462 (make-local-variable 'calc-allow-ret)
463 (setq calc-allow-ret allow-ret)
464 (let ((inhibit-read-only t))
466 (add-hook 'kill-buffer-hook (lambda ()
467 (let ((calc-edit-handler nil))
468 (calc-edit-finish t))
469 (message "(Cancelled)")) t t)
472 (or title title "Calc Edit Mode. ")
474 (if allow-ret "" " or RET")
475 " to finish, `C-x k RET' to cancel.\n\n")
476 'font-lock-face 'italic 'read-only t 'rear-nonsticky t 'front-sticky t))
477 (make-local-variable 'calc-edit-top)
478 (setq calc-edit-top (point))))
479 (put 'calc-edit-mode 'mode-class 'special)
481 (defun calc-show-edit-buffer ()
482 (let ((buf (current-buffer)))
483 (if (and (one-window-p t) pop-up-windows)
484 (pop-to-buffer (get-buffer-create "*Calc Edit*"))
485 (and calc-embedded-info (get-buffer-window (aref calc-embedded-info 1))
486 (select-window (get-buffer-window (aref calc-embedded-info 1))))
487 (switch-to-buffer (get-buffer-create "*Calc Edit*")))
488 (setq calc-return-buffer buf)
489 (if (and (< (window-width) (frame-width))
491 (let ((win (get-buffer-window (calc-trail-buffer))))
493 (delete-window win))))
494 (set-buffer-modified-p nil)
495 (goto-char calc-edit-top)))
497 (defun calc-edit-return ()
499 (if (and (boundp 'calc-allow-ret) calc-allow-ret)
503 ;; The variable calc-edit-disp-trail is local to calc-edit finish, but
504 ;; is used by calc-finish-selection-edit and calc-finish-stack-edit.
505 (defvar calc-edit-disp-trail)
507 (defun calc-edit-finish (&optional keep)
508 "Finish calc-edit mode. Parse buffer contents and push them on the stack."
510 (message "Working...")
511 (or (and (boundp 'calc-original-buffer)
512 (boundp 'calc-return-buffer)
513 (boundp 'calc-one-window)
514 (boundp 'calc-edit-handler)
515 (boundp 'calc-restore-trail)
516 (eq major-mode 'calc-edit-mode))
517 (error "This command is valid only in buffers created by calc-edit"))
518 (let ((buf (current-buffer))
519 (original calc-original-buffer)
520 (return calc-return-buffer)
521 (one-window calc-one-window)
522 (calc-edit-disp-trail calc-restore-trail))
524 (when (or (null (buffer-name original))
526 (set-buffer original)
527 (not (eq major-mode 'calc-mode))))
528 (error "Original calculator buffer has been corrupted")))
529 (goto-char calc-edit-top)
530 (if (buffer-modified-p)
531 (eval calc-edit-handler))
532 (if (and one-window (not (one-window-p t)))
534 (if (get-buffer-window return)
535 (select-window (get-buffer-window return))
536 (switch-to-buffer return))
540 (if calc-edit-disp-trail
542 (calc-trail-display 1 t)))
545 (defun calc-edit-cancel ()
546 "Cancel calc-edit mode. Ignore the Calc Edit buffer and don't change stack."
548 (let ((calc-edit-handler nil))
550 (message "(Cancelled)"))
552 (defun calc-finish-stack-edit (num)
553 (let ((buf (current-buffer))
554 (str (buffer-substring calc-edit-top (point-max)))
557 (if (and (integerp num) (> num 1))
558 (while (setq pos (string-match "\n." str))
560 (switch-to-buffer calc-original-buffer)
561 (let ((vals (let ((calc-language nil)
562 (math-expr-opers math-standard-opers))
563 (and (string-match "[^\n\t ]" str)
564 (math-read-exprs str)))))
565 (when (eq (car-safe vals) 'error)
566 (switch-to-buffer buf)
567 (goto-char (+ start (nth 1 vals)))
568 (error (nth 2 vals)))
573 (calc-refresh-evaltos num))
574 (if calc-edit-disp-trail
575 (calc-trail-display 1 t))
577 (let ((calc-simplify-mode (if (eq last-command-char ?\C-j)
579 calc-simplify-mode)))
581 (calc-enter-result num "edit" vals)
582 (calc-enter-result 1 "edit" vals (- num))))))))))
586 ;;; arch-tag: ca61019e-caca-4daa-b32c-b6afe372d5b5
587 ;;; calc-yank.el ends here