[bpt/emacs.git] / lisp / calc / calc-yank.el

;; Calculator for GNU Emacs, part II [calc-yank.el]
;; Copyright (C) 1990, 1991, 1992, 1993, 2001 Free Software Foundation, Inc.
;; Written by Dave Gillespie, daveg@synaptics.com.

;; This file is part of GNU Emacs.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY.  No author or distributor
;; accepts responsibility to anyone for the consequences of using it
;; or for whether it serves any particular purpose or works at all,
;; unless he says so in writing.  Refer to the GNU Emacs General Public
;; License for full details.

;; Everyone is granted permission to copy, modify and redistribute
;; GNU Emacs, but only under the conditions described in the
;; GNU Emacs General Public License.   A copy of this license is
;; supposed to have been given to you along with GNU Emacs so you
;; can know your rights and responsibilities.  It should be in a
;; file named COPYING.  Among other things, the copyright notice
;; and this notice must be preserved on all copies.


;; This file is autoloaded from calc-ext.el.
(require 'calc-ext)

(require 'calc-macs)

(defun calc-Need-calc-yank () nil)


;;; Kill ring commands.

(defun calc-kill (nn &optional no-delete)
  (interactive "P")
  (if (eq major-mode 'calc-mode)
      (calc-wrapper
       (calc-force-refresh)
       (calc-set-command-flag 'no-align)
       (let ((num (max (calc-locate-cursor-element (point)) 1))
	     (n (prefix-numeric-value nn)))
	 (if (< n 0)
	     (progn
	       (if (eobp)
		   (setq num (1- num)))
	       (setq num (- num n)
		     n (- n))))
	 (let ((stuff (calc-top-list n (- num n -1))))
	   (calc-cursor-stack-index num)
	   (let ((first (point)))
	     (calc-cursor-stack-index (- num n))
	     (if (null nn)
		 (backward-char 1))   ; don't include newline for raw C-k
	     (copy-region-as-kill first (point))
	     (if (not no-delete)
		 (calc-pop-stack n (- num n -1))))
	   (setq calc-last-kill (cons (car kill-ring) stuff)))))
    (kill-line nn)))

(defun calc-force-refresh ()
  (if (or calc-executing-macro calc-display-dirty)
      (let ((calc-executing-macro nil))
	(calc-refresh))))

(defun calc-locate-cursor-element (pt)
  (save-excursion
    (goto-char (point-max))
    (calc-locate-cursor-scan (- calc-stack-top) calc-stack pt)))

(defun calc-locate-cursor-scan (n stack pt)
  (if (or (<= (point) pt)
	  (null stack))
      n
    (forward-line (- (nth 1 (car stack))))
    (calc-locate-cursor-scan (1+ n) (cdr stack) pt)))

(defun calc-kill-region (top bot &optional no-delete)
  (interactive "r")
  (if (eq major-mode 'calc-mode)
      (calc-wrapper
       (calc-force-refresh)
       (calc-set-command-flag 'no-align)
       (let* ((top-num (calc-locate-cursor-element top))
	      (bot-num (calc-locate-cursor-element (1- bot)))
	      (num (- top-num bot-num -1)))
	 (copy-region-as-kill top bot)
	 (setq calc-last-kill (cons (car kill-ring)
				    (calc-top-list num bot-num)))
	 (if (not no-delete)
	     (calc-pop-stack num bot-num))))
    (if no-delete
	(copy-region-as-kill top bot)
      (kill-region top bot))))

(defun calc-copy-as-kill (n)
  (interactive "P")
  (calc-kill n t))

(defun calc-copy-region-as-kill (top bot)
  (interactive "r")
  (calc-kill-region top bot t))

;;; This function uses calc-last-kill if possible to get an exact result,
;;; otherwise it just parses the yanked string.
;;; Modified to use Emacs 19 extended concept of kill-ring. -- daveg 12/15/96
(defun calc-yank ()
  (interactive)
  (calc-wrapper
   (calc-pop-push-record-list
    0 "yank"
    (let ((thing (if (fboundp 'current-kill)
		     (current-kill 0 t)
		   (car kill-ring-yank-pointer))))
      (if (eq (car-safe calc-last-kill) thing)
	  (cdr calc-last-kill)
	(if (stringp thing)
	    (let ((val (math-read-exprs (calc-clean-newlines thing))))
	      (if (eq (car-safe val) 'error)
		  (progn
		    (setq val (math-read-exprs thing))
		    (if (eq (car-safe val) 'error)
			(error "Bad format in yanked data")
		      val))
		val))))))))

(defun calc-clean-newlines (s)
  (cond
   
   ;; Omit leading/trailing whitespace
   ((or (string-match "\\`[ \n\r]+\\([^\001]*\\)\\'" s)
	(string-match "\\`\\([^\001]*\\)[ \n\r]+\\'" s))
    (calc-clean-newlines (math-match-substring s 1)))

   ;; Convert newlines to commas
   ((string-match "\\`\\(.*\\)[\n\r]+\\([^\001]*\\)\\'" s)
    (calc-clean-newlines (concat (math-match-substring s 1) ","
				 (math-match-substring s 2))))
   
   (t s)))


(defun calc-do-grab-region (top bot arg)
  (and (memq major-mode '(calc-mode calc-trail-mode))
       (error "This command works only in a regular text buffer."))
  (let* ((from-buffer (current-buffer))
	 (calc-was-started (get-buffer-window "*Calculator*"))
	 (single nil)
	 data vals pos)
    (if arg
	(if (consp arg)
	    (setq single t)
	  (setq arg (prefix-numeric-value arg))
	  (if (= arg 0)
	      (save-excursion
		(beginning-of-line)
		(setq top (point))
		(end-of-line)
		(setq bot (point)))
	    (save-excursion
	      (setq top (point))
	      (forward-line arg)
	      (if (> arg 0)
		  (setq bot (point))
		(setq bot top
		      top (point)))))))
    (setq data (buffer-substring top bot))
    (calc)
    (if single
	(setq vals (math-read-expr data))
      (setq vals (math-read-expr (concat "[" data "]")))
      (and (eq (car-safe vals) 'vec)
	   (= (length vals) 2)
	   (eq (car-safe (nth 1 vals)) 'vec)
	   (setq vals (nth 1 vals))))
    (if (eq (car-safe vals) 'error)
	(progn
	  (if calc-was-started
	      (pop-to-buffer from-buffer)
	    (calc-quit t)
	    (switch-to-buffer from-buffer))
	  (goto-char top)
	  (forward-char (+ (nth 1 vals) (if single 0 1)))
	  (error (nth 2 vals))))
    (calc-slow-wrapper
     (calc-enter-result 0 "grab" vals))))


(defun calc-do-grab-rectangle (top bot arg &optional reduce)
  (and (memq major-mode '(calc-mode calc-trail-mode))
       (error "This command works only in a regular text buffer."))
  (let* ((col1 (save-excursion (goto-char top) (current-column)))
	 (col2 (save-excursion (goto-char bot) (current-column)))
	 (from-buffer (current-buffer))
	 (calc-was-started (get-buffer-window "*Calculator*"))
	 data mat vals lnum pt pos)
    (if (= col1 col2)
	(save-excursion
	  (or (= col1 0)
	      (error "Point and mark must be at beginning of line, or define a rectangle"))
	  (goto-char top)
	  (while (< (point) bot)
	    (setq pt (point))
	    (forward-line 1)
	    (setq data (cons (buffer-substring pt (1- (point))) data)))
	  (setq data (nreverse data)))
      (setq data (extract-rectangle top bot)))
    (calc)
    (setq mat (list 'vec)
	  lnum 0)
    (and arg
	 (setq arg (if (consp arg) 0 (prefix-numeric-value arg))))
    (while data
      (if (natnump arg)
	  (progn
	    (if (= arg 0)
		(setq arg 1000000))
	    (setq pos 0
		  vals (list 'vec))
	    (let ((w (length (car data)))
		  j v)
	      (while (< pos w)
		(setq j (+ pos arg)
		      v (if (>= j w)
			    (math-read-expr (substring (car data) pos))
			  (math-read-expr (substring (car data) pos j))))
		(if (eq (car-safe v) 'error)
		    (setq vals v w 0)
		  (setq vals (nconc vals (list v))
			pos j)))))
	(if (string-match "\\` *-?[0-9][0-9]?[0-9]?[0-9]?[0-9]?[0-9]? *\\'"
			  (car data))
	    (setq vals (list 'vec (string-to-int (car data))))
	  (if (and (null arg)
		   (string-match "[[{][^][{}]*[]}]" (car data)))
	      (setq pos (match-beginning 0)
		    vals (math-read-expr (math-match-substring (car data) 0)))
	    (let ((s (if (string-match
			  "\\`\\([0-9]+:[ \t]\\)?\\(.*[^, \t]\\)[, \t]*\\'"
			  (car data))
			 (math-match-substring (car data) 2)
		       (car data))))
	      (setq pos -1
		    vals (math-read-expr (concat "[" s "]")))
	      (if (eq (car-safe vals) 'error)
		  (let ((v2 (math-read-expr s)))
		    (or (eq (car-safe v2) 'error)
			(setq vals (list 'vec v2)))))))))
      (if (eq (car-safe vals) 'error)
	  (progn
	    (if calc-was-started
		(pop-to-buffer from-buffer)
	      (calc-quit t)
	      (switch-to-buffer from-buffer))
	    (goto-char top)
	    (forward-line lnum)
	    (forward-char (+ (nth 1 vals) (min col1 col2) pos))
	    (error (nth 2 vals))))
      (or (equal vals '(vec))
	  (setq mat (cons vals mat)))
      (setq data (cdr data)
	    lnum (1+ lnum)))
    (calc-slow-wrapper
     (if reduce
	 (calc-enter-result 0 "grb+" (list reduce '(var add var-add)
					   (nreverse mat)))
       (calc-enter-result 0 "grab" (nreverse mat))))))


(defun calc-copy-to-buffer (nn)
  "Copy the top of stack into an editing buffer."
  (interactive "P")
  (let ((thebuf (and (not (memq major-mode '(calc-mode calc-trail-mode)))
		     (current-buffer)))
	(movept nil)
	oldbuf newbuf)
    (calc-wrapper
     (save-excursion
       (calc-force-refresh)
       (let ((n (prefix-numeric-value nn))
	     (eat-lnums calc-line-numbering)
	     (big-offset (if (eq calc-language 'big) 1 0))
	     top bot)
	 (setq oldbuf (current-buffer)
	       newbuf (or thebuf
			  (calc-find-writable-buffer (buffer-list) 0)
			  (calc-find-writable-buffer (buffer-list) 1)
			  (error "No other buffer")))
	 (cond ((and (or (null nn)
			 (consp nn))
		     (= (calc-substack-height 0)
			(- (1- (calc-substack-height 1)) big-offset)))
		(calc-cursor-stack-index 1)
		(if (looking-at
		     (if calc-line-numbering "[0-9]+: *[^ \n]" " *[^ \n]"))
		    (goto-char (1- (match-end 0))))
		(setq eat-lnums nil
		      top (point))
		(calc-cursor-stack-index 0)
		(setq bot (- (1- (point)) big-offset)))
	       ((> n 0)
		(calc-cursor-stack-index n)
		(setq top (point))
		(calc-cursor-stack-index 0)
		(setq bot (- (point) big-offset)))
	       ((< n 0)
		(calc-cursor-stack-index (- n))
		(setq top (point))
		(calc-cursor-stack-index (1- (- n)))
		(setq bot (point)))
	       (t
		(goto-char (point-min))
		(forward-line 1)
		(setq top (point))
		(calc-cursor-stack-index 0)
		(setq bot (point))))
	 (save-excursion
	   (set-buffer newbuf)
	   (if (consp nn)
	       (kill-region (region-beginning) (region-end)))
	   (push-mark (point) t)
	   (if (and overwrite-mode (not (consp nn)))
	       (calc-overwrite-string (save-excursion
					(set-buffer oldbuf)
					(buffer-substring top bot))
				      eat-lnums)
	     (or (bolp) (setq eat-lnums nil))
	     (insert-buffer-substring oldbuf top bot)
	     (and eat-lnums
		  (let ((n 1))
		    (while (and (> (point) (mark))
				(progn
				  (forward-line -1)
				  (>= (point) (mark))))
		      (delete-char 4)
		      (setq n (1+ n)))
		    (forward-line n))))
	   (if thebuf (setq movept (point)))
	   (if (get-buffer-window (current-buffer))
	       (set-window-point (get-buffer-window (current-buffer))
				 (point)))))))
    (if movept (goto-char movept))
    (and (consp nn)
	 (not thebuf)
	 (progn
	   (calc-quit t)
	   (switch-to-buffer newbuf)))))

(defun calc-overwrite-string (str eat-lnums)
  (if (string-match "\n\\'" str)
      (setq str (substring str 0 -1)))
  (if eat-lnums
      (setq str (substring str 4)))
  (if (and (string-match "\\`[-+]?[0-9.]+\\(e-?[0-9]+\\)?\\'" str)
	   (looking-at "[-+]?[0-9.]+\\(e-?[0-9]+\\)?"))
      (progn
	(delete-region (point) (match-end 0))
	(insert str))
    (let ((i 0))
      (while (< i (length str))
	(if (= (setq last-command-char (aref str i)) ?\n)
	    (or (= i (1- (length str)))
		(let ((pt (point)))
		  (end-of-line)
		  (delete-region pt (point))
		  (if (eobp)
		      (insert "\n")
		    (forward-char 1))
		  (if eat-lnums (setq i (+ i 4)))))
	  (self-insert-command 1))
	(setq i (1+ i))))))

;;; First, require that buffer is visible and does not begin with "*"
;;; Second, require only that it not begin with "*Calc"
(defun calc-find-writable-buffer (buf mode)
  (and buf
       (if (or (string-match "\\`\\( .*\\|\\*Calc.*\\)"
			     (buffer-name (car buf)))
	       (and (= mode 0)
		    (or (string-match "\\`\\*.*" (buffer-name (car buf)))
			(not (get-buffer-window (car buf))))))
	   (calc-find-writable-buffer (cdr buf) mode)
	 (car buf))))


(defun calc-edit (n)
  (interactive "p")
  (calc-slow-wrapper
   (if (eq n 0)
       (setq n (calc-stack-size)))
   (let* ((flag nil)
	  (allow-ret (> n 1))
	  (list (math-showing-full-precision
		 (mapcar (if (> n 1)
			     (function (lambda (x)
					 (math-format-flat-expr x 0)))
			   (function
			    (lambda (x)
			      (if (math-vectorp x) (setq allow-ret t))
			      (math-format-nice-expr x (frame-width)))))
			 (if (> n 0)
			     (calc-top-list n)
			   (calc-top-list 1 (- n)))))))
     (calc-edit-mode (list 'calc-finish-stack-edit (or flag n)) allow-ret)
     (while list
       (insert (car list) "\n")
       (setq list (cdr list)))))
  (calc-show-edit-buffer))

(defun calc-alg-edit (str)
  (calc-edit-mode '(calc-finish-stack-edit 0))
  (calc-show-edit-buffer)
  (insert str "\n")
  (backward-char 1)
  (calc-set-command-flag 'do-edit))

(defvar calc-edit-mode-map nil "Keymap for use by the calc-edit command.")
(if calc-edit-mode-map
    ()
  (setq calc-edit-mode-map (make-sparse-keymap))
  (define-key calc-edit-mode-map "\n" 'calc-edit-finish)
  (define-key calc-edit-mode-map "\r" 'calc-edit-return)
  (define-key calc-edit-mode-map "\C-c\C-c" 'calc-edit-finish))

(defun calc-edit-mode (&optional handler allow-ret title)
  "Calculator editing mode.  Press RET, LFD, or C-c C-c to finish.
To cancel the edit, simply kill the *Calc Edit* buffer."
  (interactive)
  (or handler
      (error "This command can be used only indirectly through calc-edit."))
  (let ((oldbuf (current-buffer))
	(buf (get-buffer-create "*Calc Edit*")))
    (set-buffer buf)
    (kill-all-local-variables)
    (use-local-map calc-edit-mode-map)
    (setq buffer-read-only nil)
    (setq truncate-lines nil)
    (setq major-mode 'calc-edit-mode)
    (setq mode-name "Calc Edit")
    (run-hooks 'calc-edit-mode-hook)
    (make-local-variable 'calc-original-buffer)
    (setq calc-original-buffer oldbuf)
    (make-local-variable 'calc-return-buffer)
    (setq calc-return-buffer oldbuf)
    (make-local-variable 'calc-one-window)
    (setq calc-one-window (and (one-window-p t) pop-up-windows))
    (make-local-variable 'calc-edit-handler)
    (setq calc-edit-handler handler)
    (make-local-variable 'calc-restore-trail)
    (setq calc-restore-trail (get-buffer-window (calc-trail-buffer)))
    (make-local-variable 'calc-allow-ret)
    (setq calc-allow-ret allow-ret)
    (erase-buffer)
    (insert (or title title "Calc Edit Mode")
	    ".  Press "
	    (if (eq (lookup-key (current-global-map) "\e#") 'calc-dispatch)
		"M-# M-# or C-c C-c"
	      (if allow-ret "C-c C-c" "RET"))
	    " to finish, "
	    (if (eq (lookup-key (current-global-map) "\e#") 'calc-dispatch)
		"M-# x"
	      "C-x k RET")
	    " to cancel.\n")))
(put 'calc-edit-mode 'mode-class 'special)

(defun calc-show-edit-buffer ()
  (let ((buf (current-buffer)))
    (if (and (one-window-p t) pop-up-windows)
	(pop-to-buffer (get-buffer-create "*Calc Edit*"))
      (and calc-embedded-info (get-buffer-window (aref calc-embedded-info 1))
	   (select-window (get-buffer-window (aref calc-embedded-info 1))))
      (switch-to-buffer (get-buffer-create "*Calc Edit*")))
    (setq calc-return-buffer buf)
    (if (and (< (window-width) (frame-width))
	     calc-display-trail)
	(let ((win (get-buffer-window (calc-trail-buffer))))
	  (if win
	      (delete-window win))))
    (set-buffer-modified-p nil)
    (goto-char (point-min))
    (forward-line 1)))

(defun calc-edit-return ()
  (interactive)
  (if (and (boundp 'calc-allow-ret) calc-allow-ret)
      (newline)
    (calc-edit-finish)))

(defun calc-edit-finish (&optional keep)
  "Finish calc-edit mode.  Parse buffer contents and push them on the stack."
  (interactive "P")
  (message "Working...")
  (or (and (boundp 'calc-original-buffer)
	   (boundp 'calc-return-buffer)
	   (boundp 'calc-one-window)
	   (boundp 'calc-edit-handler)
	   (boundp 'calc-restore-trail)
	   (eq major-mode 'calc-edit-mode))
      (error "This command is valid only in buffers created by calc-edit."))
  (let ((buf (current-buffer))
	(original calc-original-buffer)
	(return calc-return-buffer)
	(one-window calc-one-window)
	(disp-trail calc-restore-trail))
    (save-excursion
      (if (or (null (buffer-name original))
	      (progn
		(set-buffer original)
		(not (eq major-mode 'calc-mode))))
	  (error "Original calculator buffer has been corrupted.")))
    (goto-char (point-min))
    (if (looking-at "Calc Edit\\|Editing ")
	(forward-line 1))
    (if (buffer-modified-p)
	(eval calc-edit-handler))
    (if one-window
	(delete-window))
    (if (get-buffer-window return)
	(select-window (get-buffer-window return))
      (switch-to-buffer return))
    (if keep
	(bury-buffer buf)
      (kill-buffer buf))
    (if disp-trail
	(calc-wrapper
	 (calc-trail-display 1 t)))
    (message "")))

(defun calc-edit-cancel ()
  "Cancel calc-edit mode.  Ignore the Calc Edit buffer and don't change stack."
  (interactive)
  (let ((calc-edit-handler nil))
    (calc-edit-finish))
  (message "(Cancelled)"))

(defun calc-finish-stack-edit (num)
  (let ((buf (current-buffer))
	(str (buffer-substring (point) (point-max)))
	(start (point))
	pos)
    (if (and (integerp num) (> num 1))
	(while (setq pos (string-match "\n." str))
	  (aset str pos ?\,)))
    (switch-to-buffer calc-original-buffer)
    (let ((vals (let ((calc-language nil)
		      (math-expr-opers math-standard-opers))
		  (and (string-match "[^\n\t ]" str)
		       (math-read-exprs str)))))
      (if (eq (car-safe vals) 'error)
	  (progn
	    (switch-to-buffer buf)
	    (goto-char (+ start (nth 1 vals)))
	    (error (nth 2 vals))))
      (calc-wrapper
       (if (symbolp num)
	   (progn
	     (set num (car vals))
	     (calc-refresh-evaltos num))
	 (if disp-trail
	     (calc-trail-display 1 t))
	 (and vals
	      (let ((calc-simplify-mode (if (eq last-command-char ?\C-j)
					    'none
					  calc-simplify-mode)))
		(if (>= num 0)
		    (calc-enter-result num "edit" vals)
		  (calc-enter-result 1 "edit" vals (- num))))))))))

;;; calc-yank.el ends here
Commit	Line	Data
136211a9	1	;; Calculator for GNU Emacs, part II [calc-yank.el]
8f66f479	2	;; Copyright (C) 1990, 1991, 1992, 1993, 2001 Free Software Foundation, Inc.
136211a9 EZ	3	;; Written by Dave Gillespie, daveg@synaptics.com.
	4
	5	;; This file is part of GNU Emacs.
	6
	7	;; GNU Emacs is distributed in the hope that it will be useful,
	8	;; but WITHOUT ANY WARRANTY. No author or distributor
	9	;; accepts responsibility to anyone for the consequences of using it
	10	;; or for whether it serves any particular purpose or works at all,
	11	;; unless he says so in writing. Refer to the GNU Emacs General Public
	12	;; License for full details.
	13
	14	;; Everyone is granted permission to copy, modify and redistribute
	15	;; GNU Emacs, but only under the conditions described in the
	16	;; GNU Emacs General Public License. A copy of this license is
	17	;; supposed to have been given to you along with GNU Emacs so you
	18	;; can know your rights and responsibilities. It should be in a
	19	;; file named COPYING. Among other things, the copyright notice
	20	;; and this notice must be preserved on all copies.
	21
	22
	23
	24	;; This file is autoloaded from calc-ext.el.
	25	(require 'calc-ext)
	26
	27	(require 'calc-macs)
	28
	29	(defun calc-Need-calc-yank () nil)
	30
	31
	32	;;; Kill ring commands.
	33
	34	(defun calc-kill (nn &optional no-delete)
	35	(interactive "P")
	36	(if (eq major-mode 'calc-mode)
	37	(calc-wrapper
	38	(calc-force-refresh)
	39	(calc-set-command-flag 'no-align)
	40	(let ((num (max (calc-locate-cursor-element (point)) 1))
	41	(n (prefix-numeric-value nn)))
	42	(if (< n 0)
	43	(progn
	44	(if (eobp)
	45	(setq num (1- num)))
	46	(setq num (- num n)
	47	n (- n))))
	48	(let ((stuff (calc-top-list n (- num n -1))))
	49	(calc-cursor-stack-index num)
	50	(let ((first (point)))
	51	(calc-cursor-stack-index (- num n))
	52	(if (null nn)
	53	(backward-char 1)) ; don't include newline for raw C-k
	54	(copy-region-as-kill first (point))
	55	(if (not no-delete)
	56	(calc-pop-stack n (- num n -1))))
	57	(setq calc-last-kill (cons (car kill-ring) stuff)))))
bf77c646	58	(kill-line nn)))
136211a9 EZ	59
	60	(defun calc-force-refresh ()
	61	(if (or calc-executing-macro calc-display-dirty)
	62	(let ((calc-executing-macro nil))
bf77c646	63	(calc-refresh))))
136211a9 EZ	64
	65	(defun calc-locate-cursor-element (pt)
	66	(save-excursion
	67	(goto-char (point-max))
bf77c646	68	(calc-locate-cursor-scan (- calc-stack-top) calc-stack pt)))
136211a9 EZ	69
	70	(defun calc-locate-cursor-scan (n stack pt)
	71	(if (or (<= (point) pt)
	72	(null stack))
	73	n
	74	(forward-line (- (nth 1 (car stack))))
bf77c646	75	(calc-locate-cursor-scan (1+ n) (cdr stack) pt)))
136211a9 EZ	76
	77	(defun calc-kill-region (top bot &optional no-delete)
	78	(interactive "r")
	79	(if (eq major-mode 'calc-mode)
	80	(calc-wrapper
	81	(calc-force-refresh)
	82	(calc-set-command-flag 'no-align)
	83	(let* ((top-num (calc-locate-cursor-element top))
	84	(bot-num (calc-locate-cursor-element (1- bot)))
	85	(num (- top-num bot-num -1)))
	86	(copy-region-as-kill top bot)
	87	(setq calc-last-kill (cons (car kill-ring)
	88	(calc-top-list num bot-num)))
	89	(if (not no-delete)
	90	(calc-pop-stack num bot-num))))
	91	(if no-delete
	92	(copy-region-as-kill top bot)
bf77c646	93	(kill-region top bot))))
136211a9 EZ	94
	95	(defun calc-copy-as-kill (n)
	96	(interactive "P")
bf77c646	97	(calc-kill n t))
136211a9 EZ	98
	99	(defun calc-copy-region-as-kill (top bot)
	100	(interactive "r")
bf77c646	101	(calc-kill-region top bot t))
136211a9 EZ	102
	103	;;; This function uses calc-last-kill if possible to get an exact result,
	104	;;; otherwise it just parses the yanked string.
	105	;;; Modified to use Emacs 19 extended concept of kill-ring. -- daveg 12/15/96
	106	(defun calc-yank ()
	107	(interactive)
	108	(calc-wrapper
	109	(calc-pop-push-record-list
	110	0 "yank"
	111	(let ((thing (if (fboundp 'current-kill)
	112	(current-kill 0 t)
	113	(car kill-ring-yank-pointer))))
	114	(if (eq (car-safe calc-last-kill) thing)
	115	(cdr calc-last-kill)
	116	(if (stringp thing)
	117	(let ((val (math-read-exprs (calc-clean-newlines thing))))
	118	(if (eq (car-safe val) 'error)
	119	(progn
	120	(setq val (math-read-exprs thing))
	121	(if (eq (car-safe val) 'error)
	122	(error "Bad format in yanked data")
	123	val))
bf77c646	124	val))))))))
136211a9 EZ	125
	126	(defun calc-clean-newlines (s)
	127	(cond
	128
	129	;; Omit leading/trailing whitespace
	130	((or (string-match "\\`[ \n\r]+\\([^\001]*\\)\\'" s)
	131	(string-match "\\`\\([^\001]*\\)[ \n\r]+\\'" s))
	132	(calc-clean-newlines (math-match-substring s 1)))
	133
	134	;; Convert newlines to commas
	135	((string-match "\\`\\(.\\)[\n\r]+\\([^\001]\\)\\'" s)
	136	(calc-clean-newlines (concat (math-match-substring s 1) ","
	137	(math-match-substring s 2))))
	138
bf77c646	139	(t s)))
136211a9 EZ	140
	141
	142	(defun calc-do-grab-region (top bot arg)
	143	(and (memq major-mode '(calc-mode calc-trail-mode))
	144	(error "This command works only in a regular text buffer."))
	145	(let* ((from-buffer (current-buffer))
	146	(calc-was-started (get-buffer-window "Calculator"))
	147	(single nil)
	148	data vals pos)
	149	(if arg
	150	(if (consp arg)
	151	(setq single t)
	152	(setq arg (prefix-numeric-value arg))
	153	(if (= arg 0)
	154	(save-excursion
	155	(beginning-of-line)
	156	(setq top (point))
	157	(end-of-line)
	158	(setq bot (point)))
	159	(save-excursion
	160	(setq top (point))
	161	(forward-line arg)
	162	(if (> arg 0)
	163	(setq bot (point))
	164	(setq bot top
	165	top (point)))))))
	166	(setq data (buffer-substring top bot))
	167	(calc)
	168	(if single
	169	(setq vals (math-read-expr data))
	170	(setq vals (math-read-expr (concat "[" data "]")))
	171	(and (eq (car-safe vals) 'vec)
	172	(= (length vals) 2)
	173	(eq (car-safe (nth 1 vals)) 'vec)
	174	(setq vals (nth 1 vals))))
	175	(if (eq (car-safe vals) 'error)
	176	(progn
	177	(if calc-was-started
	178	(pop-to-buffer from-buffer)
	179	(calc-quit t)
	180	(switch-to-buffer from-buffer))
	181	(goto-char top)
	182	(forward-char (+ (nth 1 vals) (if single 0 1)))
	183	(error (nth 2 vals))))
	184	(calc-slow-wrapper
bf77c646	185	(calc-enter-result 0 "grab" vals))))
136211a9 EZ	186
	187
	188	(defun calc-do-grab-rectangle (top bot arg &optional reduce)
	189	(and (memq major-mode '(calc-mode calc-trail-mode))
	190	(error "This command works only in a regular text buffer."))
	191	(let* ((col1 (save-excursion (goto-char top) (current-column)))
	192	(col2 (save-excursion (goto-char bot) (current-column)))
	193	(from-buffer (current-buffer))
	194	(calc-was-started (get-buffer-window "Calculator"))
	195	data mat vals lnum pt pos)
	196	(if (= col1 col2)
	197	(save-excursion
	198	(or (= col1 0)
	199	(error "Point and mark must be at beginning of line, or define a rectangle"))
	200	(goto-char top)
	201	(while (< (point) bot)
	202	(setq pt (point))
	203	(forward-line 1)
	204	(setq data (cons (buffer-substring pt (1- (point))) data)))
	205	(setq data (nreverse data)))
	206	(setq data (extract-rectangle top bot)))
	207	(calc)
	208	(setq mat (list 'vec)
	209	lnum 0)
	210	(and arg
	211	(setq arg (if (consp arg) 0 (prefix-numeric-value arg))))
	212	(while data
	213	(if (natnump arg)
	214	(progn
	215	(if (= arg 0)
	216	(setq arg 1000000))
	217	(setq pos 0
	218	vals (list 'vec))
	219	(let ((w (length (car data)))
	220	j v)
	221	(while (< pos w)
	222	(setq j (+ pos arg)
	223	v (if (>= j w)
	224	(math-read-expr (substring (car data) pos))
	225	(math-read-expr (substring (car data) pos j))))
	226	(if (eq (car-safe v) 'error)
	227	(setq vals v w 0)
	228	(setq vals (nconc vals (list v))
	229	pos j)))))
	230	(if (string-match "\\` -?[0-9][0-9]?[0-9]?[0-9]?[0-9]?[0-9]? \\'"
	231	(car data))
	232	(setq vals (list 'vec (string-to-int (car data))))
	233	(if (and (null arg)
	234	(string-match "[[{][^][{}]*[]}]" (car data)))
	235	(setq pos (match-beginning 0)
	236	vals (math-read-expr (math-match-substring (car data) 0)))
	237	(let ((s (if (string-match
	238	"\\`\\([0-9]+:[ \t]\\)?\\(.[^, \t]\\)[, \t]\\'"
	239	(car data))
	240	(math-match-substring (car data) 2)
	241	(car data))))
	242	(setq pos -1
	243	vals (math-read-expr (concat "[" s "]")))
	244	(if (eq (car-safe vals) 'error)
	245	(let ((v2 (math-read-expr s)))
	246	(or (eq (car-safe v2) 'error)
	247	(setq vals (list 'vec v2)))))))))
	248	(if (eq (car-safe vals) 'error)
	249	(progn
250	(if calc-was-started
251	(pop-to-buffer from-buffer)
252	(calc-quit t)
253	(switch-to-buffer from-buffer))
254	(goto-char top)
255	(forward-line lnum)
256	(forward-char (+ (nth 1 vals) (min col1 col2) pos))
257	(error (nth 2 vals))))
258	(or (equal vals '(vec))
259	(setq mat (cons vals mat)))
260	(setq data (cdr data)
261	lnum (1+ lnum)))
262	(calc-slow-wrapper
263	(if reduce
264	(calc-enter-result 0 "grb+" (list reduce '(var add var-add)
265	(nreverse mat)))
bf77c646	266	(calc-enter-result 0 "grab" (nreverse mat))))))
136211a9 EZ	267
	268
	269	(defun calc-copy-to-buffer (nn)
	270	"Copy the top of stack into an editing buffer."
	271	(interactive "P")
	272	(let ((thebuf (and (not (memq major-mode '(calc-mode calc-trail-mode)))
	273	(current-buffer)))
	274	(movept nil)
	275	oldbuf newbuf)
	276	(calc-wrapper
	277	(save-excursion
	278	(calc-force-refresh)
	279	(let ((n (prefix-numeric-value nn))
	280	(eat-lnums calc-line-numbering)
	281	(big-offset (if (eq calc-language 'big) 1 0))
	282	top bot)
	283	(setq oldbuf (current-buffer)
	284	newbuf (or thebuf
	285	(calc-find-writable-buffer (buffer-list) 0)
	286	(calc-find-writable-buffer (buffer-list) 1)
	287	(error "No other buffer")))
	288	(cond ((and (or (null nn)
	289	(consp nn))
	290	(= (calc-substack-height 0)
	291	(- (1- (calc-substack-height 1)) big-offset)))
	292	(calc-cursor-stack-index 1)
	293	(if (looking-at
	294	(if calc-line-numbering "[0-9]+: [^ \n]" " [^ \n]"))
	295	(goto-char (1- (match-end 0))))
	296	(setq eat-lnums nil
	297	top (point))
	298	(calc-cursor-stack-index 0)
	299	(setq bot (- (1- (point)) big-offset)))
	300	((> n 0)
	301	(calc-cursor-stack-index n)
	302	(setq top (point))
	303	(calc-cursor-stack-index 0)
	304	(setq bot (- (point) big-offset)))
	305	((< n 0)
	306	(calc-cursor-stack-index (- n))
	307	(setq top (point))
	308	(calc-cursor-stack-index (1- (- n)))
	309	(setq bot (point)))
	310	(t
	311	(goto-char (point-min))
	312	(forward-line 1)
	313	(setq top (point))
	314	(calc-cursor-stack-index 0)
	315	(setq bot (point))))
	316	(save-excursion
	317	(set-buffer newbuf)
	318	(if (consp nn)
	319	(kill-region (region-beginning) (region-end)))
	320	(push-mark (point) t)
	321	(if (and overwrite-mode (not (consp nn)))
	322	(calc-overwrite-string (save-excursion
	323	(set-buffer oldbuf)
	324	(buffer-substring top bot))
	325	eat-lnums)
	326	(or (bolp) (setq eat-lnums nil))
	327	(insert-buffer-substring oldbuf top bot)
	328	(and eat-lnums
	329	(let ((n 1))
	330	(while (and (> (point) (mark))
331	(progn
332	(forward-line -1)
333	(>= (point) (mark))))
334	(delete-char 4)
335	(setq n (1+ n)))
336	(forward-line n))))
337	(if thebuf (setq movept (point)))
338	(if (get-buffer-window (current-buffer))
339	(set-window-point (get-buffer-window (current-buffer))
340	(point)))))))
341	(if movept (goto-char movept))
342	(and (consp nn)
343	(not thebuf)
344	(progn
345	(calc-quit t)
bf77c646	346	(switch-to-buffer newbuf)))))
136211a9 EZ	347
	348	(defun calc-overwrite-string (str eat-lnums)
	349	(if (string-match "\n\\'" str)
	350	(setq str (substring str 0 -1)))
	351	(if eat-lnums
	352	(setq str (substring str 4)))
	353	(if (and (string-match "\\`[-+]?[0-9.]+\\(e-?[0-9]+\\)?\\'" str)
	354	(looking-at "[-+]?[0-9.]+\\(e-?[0-9]+\\)?"))
	355	(progn
	356	(delete-region (point) (match-end 0))
	357	(insert str))
	358	(let ((i 0))
	359	(while (< i (length str))
	360	(if (= (setq last-command-char (aref str i)) ?\n)
	361	(or (= i (1- (length str)))
	362	(let ((pt (point)))
	363	(end-of-line)
	364	(delete-region pt (point))
	365	(if (eobp)
	366	(insert "\n")
	367	(forward-char 1))
	368	(if eat-lnums (setq i (+ i 4)))))
	369	(self-insert-command 1))
bf77c646	370	(setq i (1+ i))))))
136211a9 EZ	371
	372	;;; First, require that buffer is visible and does not begin with "*"
	373	;;; Second, require only that it not begin with "*Calc"
	374	(defun calc-find-writable-buffer (buf mode)
	375	(and buf
	376	(if (or (string-match "\\`\\( .\\\|\\Calc.*\\)"
	377	(buffer-name (car buf)))
	378	(and (= mode 0)
	379	(or (string-match "\\`\\." (buffer-name (car buf)))
	380	(not (get-buffer-window (car buf))))))
	381	(calc-find-writable-buffer (cdr buf) mode)
bf77c646	382	(car buf))))
136211a9 EZ	383
	384
	385	(defun calc-edit (n)
	386	(interactive "p")
	387	(calc-slow-wrapper
	388	(if (eq n 0)
	389	(setq n (calc-stack-size)))
	390	(let* ((flag nil)
	391	(allow-ret (> n 1))
	392	(list (math-showing-full-precision
	393	(mapcar (if (> n 1)
	394	(function (lambda (x)
	395	(math-format-flat-expr x 0)))
	396	(function
	397	(lambda (x)
	398	(if (math-vectorp x) (setq allow-ret t))
8f66f479	399	(math-format-nice-expr x (frame-width)))))
136211a9 EZ	400	(if (> n 0)
	401	(calc-top-list n)
	402	(calc-top-list 1 (- n)))))))
	403	(calc-edit-mode (list 'calc-finish-stack-edit (or flag n)) allow-ret)
	404	(while list
	405	(insert (car list) "\n")
	406	(setq list (cdr list)))))
bf77c646	407	(calc-show-edit-buffer))
136211a9 EZ	408
	409	(defun calc-alg-edit (str)
	410	(calc-edit-mode '(calc-finish-stack-edit 0))
	411	(calc-show-edit-buffer)
	412	(insert str "\n")
	413	(backward-char 1)
bf77c646	414	(calc-set-command-flag 'do-edit))
136211a9 EZ	415
	416	(defvar calc-edit-mode-map nil "Keymap for use by the calc-edit command.")
	417	(if calc-edit-mode-map
	418	()
	419	(setq calc-edit-mode-map (make-sparse-keymap))
	420	(define-key calc-edit-mode-map "\n" 'calc-edit-finish)
	421	(define-key calc-edit-mode-map "\r" 'calc-edit-return)
bf77c646	422	(define-key calc-edit-mode-map "\C-c\C-c" 'calc-edit-finish))
136211a9 EZ	423
	424	(defun calc-edit-mode (&optional handler allow-ret title)
	425	"Calculator editing mode. Press RET, LFD, or C-c C-c to finish.
	426	To cancel the edit, simply kill the Calc Edit buffer."
	427	(interactive)
	428	(or handler
	429	(error "This command can be used only indirectly through calc-edit."))
	430	(let ((oldbuf (current-buffer))
	431	(buf (get-buffer-create "Calc Edit")))
	432	(set-buffer buf)
	433	(kill-all-local-variables)
	434	(use-local-map calc-edit-mode-map)
	435	(setq buffer-read-only nil)
	436	(setq truncate-lines nil)
	437	(setq major-mode 'calc-edit-mode)
	438	(setq mode-name "Calc Edit")
	439	(run-hooks 'calc-edit-mode-hook)
	440	(make-local-variable 'calc-original-buffer)
	441	(setq calc-original-buffer oldbuf)
	442	(make-local-variable 'calc-return-buffer)
	443	(setq calc-return-buffer oldbuf)
	444	(make-local-variable 'calc-one-window)
	445	(setq calc-one-window (and (one-window-p t) pop-up-windows))
	446	(make-local-variable 'calc-edit-handler)
	447	(setq calc-edit-handler handler)
	448	(make-local-variable 'calc-restore-trail)
	449	(setq calc-restore-trail (get-buffer-window (calc-trail-buffer)))
	450	(make-local-variable 'calc-allow-ret)
	451	(setq calc-allow-ret allow-ret)
	452	(erase-buffer)
	453	(insert (or title title "Calc Edit Mode")
	454	". Press "
	455	(if (eq (lookup-key (current-global-map) "\e#") 'calc-dispatch)
	456	"M-# M-# or C-c C-c"
	457	(if allow-ret "C-c C-c" "RET"))
	458	" to finish, "
	459	(if (eq (lookup-key (current-global-map) "\e#") 'calc-dispatch)
	460	"M-# x"
	461	"C-x k RET")
bf77c646	462	" to cancel.\n")))
136211a9 EZ	463	(put 'calc-edit-mode 'mode-class 'special)
	464
	465	(defun calc-show-edit-buffer ()
	466	(let ((buf (current-buffer)))
	467	(if (and (one-window-p t) pop-up-windows)
	468	(pop-to-buffer (get-buffer-create "Calc Edit"))
	469	(and calc-embedded-info (get-buffer-window (aref calc-embedded-info 1))
	470	(select-window (get-buffer-window (aref calc-embedded-info 1))))
	471	(switch-to-buffer (get-buffer-create "Calc Edit")))
	472	(setq calc-return-buffer buf)
8f66f479	473	(if (and (< (window-width) (frame-width))
136211a9 EZ	474	calc-display-trail)
	475	(let ((win (get-buffer-window (calc-trail-buffer))))
	476	(if win
	477	(delete-window win))))
	478	(set-buffer-modified-p nil)
	479	(goto-char (point-min))
bf77c646	480	(forward-line 1)))
136211a9 EZ	481
	482	(defun calc-edit-return ()
	483	(interactive)
	484	(if (and (boundp 'calc-allow-ret) calc-allow-ret)
	485	(newline)
bf77c646	486	(calc-edit-finish)))
136211a9 EZ	487
	488	(defun calc-edit-finish (&optional keep)
	489	"Finish calc-edit mode. Parse buffer contents and push them on the stack."
	490	(interactive "P")
	491	(message "Working...")
	492	(or (and (boundp 'calc-original-buffer)
	493	(boundp 'calc-return-buffer)
	494	(boundp 'calc-one-window)
	495	(boundp 'calc-edit-handler)
	496	(boundp 'calc-restore-trail)
	497	(eq major-mode 'calc-edit-mode))
	498	(error "This command is valid only in buffers created by calc-edit."))
	499	(let ((buf (current-buffer))
	500	(original calc-original-buffer)
	501	(return calc-return-buffer)
	502	(one-window calc-one-window)
	503	(disp-trail calc-restore-trail))
	504	(save-excursion
	505	(if (or (null (buffer-name original))
	506	(progn
	507	(set-buffer original)
	508	(not (eq major-mode 'calc-mode))))
	509	(error "Original calculator buffer has been corrupted.")))
	510	(goto-char (point-min))
	511	(if (looking-at "Calc Edit\\\|Editing ")
	512	(forward-line 1))
	513	(if (buffer-modified-p)
	514	(eval calc-edit-handler))
	515	(if one-window
	516	(delete-window))
	517	(if (get-buffer-window return)
	518	(select-window (get-buffer-window return))
	519	(switch-to-buffer return))
	520	(if keep
	521	(bury-buffer buf)
	522	(kill-buffer buf))
	523	(if disp-trail
	524	(calc-wrapper
	525	(calc-trail-display 1 t)))
bf77c646	526	(message "")))
136211a9 EZ	527
	528	(defun calc-edit-cancel ()
	529	"Cancel calc-edit mode. Ignore the Calc Edit buffer and don't change stack."
	530	(interactive)
	531	(let ((calc-edit-handler nil))
	532	(calc-edit-finish))
bf77c646	533	(message "(Cancelled)"))
136211a9 EZ	534
	535	(defun calc-finish-stack-edit (num)
	536	(let ((buf (current-buffer))
	537	(str (buffer-substring (point) (point-max)))
	538	(start (point))
	539	pos)
	540	(if (and (integerp num) (> num 1))
	541	(while (setq pos (string-match "\n." str))
	542	(aset str pos ?\,)))
	543	(switch-to-buffer calc-original-buffer)
	544	(let ((vals (let ((calc-language nil)
	545	(math-expr-opers math-standard-opers))
	546	(and (string-match "[^\n\t ]" str)
	547	(math-read-exprs str)))))
	548	(if (eq (car-safe vals) 'error)
	549	(progn
	550	(switch-to-buffer buf)
	551	(goto-char (+ start (nth 1 vals)))
	552	(error (nth 2 vals))))
	553	(calc-wrapper
	554	(if (symbolp num)
	555	(progn
	556	(set num (car vals))
	557	(calc-refresh-evaltos num))
	558	(if disp-trail
	559	(calc-trail-display 1 t))
	560	(and vals
	561	(let ((calc-simplify-mode (if (eq last-command-char ?\C-j)
	562	'none
	563	calc-simplify-mode)))
	564	(if (>= num 0)
	565	(calc-enter-result num "edit" vals)
bf77c646	566	(calc-enter-result 1 "edit" vals (- num))))))))))
136211a9	567
bf77c646	568	;;; calc-yank.el ends here