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587 lines
18 KiB
EmacsLisp
587 lines
18 KiB
EmacsLisp
;;; calc-yank.el --- kill-ring functionality for Calc
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;; Copyright (C) 1990, 1991, 1992, 1993, 2001, 2005 Free Software Foundation, Inc.
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;; Author: David Gillespie <daveg@synaptics.com>
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;; Maintainer: Jay Belanger <belanger@truman.edu>
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;; This file is part of GNU Emacs.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY. No author or distributor
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;; accepts responsibility to anyone for the consequences of using it
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;; or for whether it serves any particular purpose or works at all,
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;; unless he says so in writing. Refer to the GNU Emacs General Public
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;; License for full details.
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;; Everyone is granted permission to copy, modify and redistribute
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;; GNU Emacs, but only under the conditions described in the
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;; GNU Emacs General Public License. A copy of this license is
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;; supposed to have been given to you along with GNU Emacs so you
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;; can know your rights and responsibilities. It should be in a
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;; file named COPYING. Among other things, the copyright notice
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;; and this notice must be preserved on all copies.
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;;; Commentary:
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;;; Code:
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;; This file is autoloaded from calc-ext.el.
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(require 'calc-ext)
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(require 'calc-macs)
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;;; Kill ring commands.
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(defun calc-kill (nn &optional no-delete)
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(interactive "P")
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(if (eq major-mode 'calc-mode)
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(calc-wrapper
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(calc-force-refresh)
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(calc-set-command-flag 'no-align)
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(let ((num (max (calc-locate-cursor-element (point)) 1))
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(n (prefix-numeric-value nn)))
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(if (< n 0)
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(progn
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(if (eobp)
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(setq num (1- num)))
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(setq num (- num n)
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n (- n))))
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(let ((stuff (calc-top-list n (- num n -1))))
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(calc-cursor-stack-index num)
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(let ((first (point)))
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(calc-cursor-stack-index (- num n))
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(if (null nn)
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(backward-char 1)) ; don't include newline for raw C-k
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(copy-region-as-kill first (point))
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(if (not no-delete)
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(calc-pop-stack n (- num n -1))))
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(setq calc-last-kill (cons (car kill-ring) stuff)))))
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(kill-line nn)))
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(defun calc-force-refresh ()
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(if (or calc-executing-macro calc-display-dirty)
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(let ((calc-executing-macro nil))
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(calc-refresh))))
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(defun calc-locate-cursor-element (pt)
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(save-excursion
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(goto-char (point-max))
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(calc-locate-cursor-scan (- calc-stack-top) calc-stack pt)))
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(defun calc-locate-cursor-scan (n stack pt)
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(if (or (<= (point) pt)
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(null stack))
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n
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(forward-line (- (nth 1 (car stack))))
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(calc-locate-cursor-scan (1+ n) (cdr stack) pt)))
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(defun calc-kill-region (top bot &optional no-delete)
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(interactive "r")
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(if (eq major-mode 'calc-mode)
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(calc-wrapper
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(calc-force-refresh)
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(calc-set-command-flag 'no-align)
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(let* ((top-num (calc-locate-cursor-element top))
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(bot-num (calc-locate-cursor-element (1- bot)))
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(num (- top-num bot-num -1)))
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(copy-region-as-kill top bot)
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(setq calc-last-kill (cons (car kill-ring)
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(calc-top-list num bot-num)))
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(if (not no-delete)
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(calc-pop-stack num bot-num))))
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(if no-delete
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(copy-region-as-kill top bot)
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(kill-region top bot))))
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(defun calc-copy-as-kill (n)
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(interactive "P")
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(calc-kill n t))
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(defun calc-copy-region-as-kill (top bot)
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(interactive "r")
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(calc-kill-region top bot t))
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;;; This function uses calc-last-kill if possible to get an exact result,
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;;; otherwise it just parses the yanked string.
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;;; Modified to use Emacs 19 extended concept of kill-ring. -- daveg 12/15/96
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(defun calc-yank ()
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(interactive)
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(calc-wrapper
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(calc-pop-push-record-list
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0 "yank"
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(let ((thing (if (fboundp 'current-kill)
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(current-kill 0 t)
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(car kill-ring-yank-pointer))))
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(if (eq (car-safe calc-last-kill) thing)
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(cdr calc-last-kill)
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(if (stringp thing)
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(let ((val (math-read-exprs (calc-clean-newlines thing))))
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(if (eq (car-safe val) 'error)
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(progn
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(setq val (math-read-exprs thing))
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(if (eq (car-safe val) 'error)
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(error "Bad format in yanked data")
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val))
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val))))))))
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(defun calc-clean-newlines (s)
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(cond
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;; Omit leading/trailing whitespace
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((or (string-match "\\`[ \n\r]+\\([^\001]*\\)\\'" s)
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(string-match "\\`\\([^\001]*\\)[ \n\r]+\\'" s))
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(calc-clean-newlines (math-match-substring s 1)))
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;; Convert newlines to commas
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((string-match "\\`\\(.*\\)[\n\r]+\\([^\001]*\\)\\'" s)
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(calc-clean-newlines (concat (math-match-substring s 1) ","
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(math-match-substring s 2))))
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(t s)))
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(defun calc-do-grab-region (top bot arg)
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(when (memq major-mode '(calc-mode calc-trail-mode))
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(error "This command works only in a regular text buffer"))
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(let* ((from-buffer (current-buffer))
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(calc-was-started (get-buffer-window "*Calculator*"))
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(single nil)
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data vals pos)
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(if arg
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(if (consp arg)
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(setq single t)
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(setq arg (prefix-numeric-value arg))
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(if (= arg 0)
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(save-excursion
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(beginning-of-line)
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(setq top (point))
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(end-of-line)
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(setq bot (point)))
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(save-excursion
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(setq top (point))
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(forward-line arg)
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(if (> arg 0)
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(setq bot (point))
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(setq bot top
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top (point)))))))
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(setq data (buffer-substring top bot))
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(calc)
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(if single
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(setq vals (math-read-expr data))
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(setq vals (math-read-expr (concat "[" data "]")))
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(and (eq (car-safe vals) 'vec)
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(= (length vals) 2)
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(eq (car-safe (nth 1 vals)) 'vec)
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(setq vals (nth 1 vals))))
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(if (eq (car-safe vals) 'error)
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(progn
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(if calc-was-started
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(pop-to-buffer from-buffer)
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(calc-quit t)
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(switch-to-buffer from-buffer))
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(goto-char top)
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(forward-char (+ (nth 1 vals) (if single 0 1)))
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(error (nth 2 vals))))
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(calc-slow-wrapper
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(calc-enter-result 0 "grab" vals))))
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(defun calc-do-grab-rectangle (top bot arg &optional reduce)
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(and (memq major-mode '(calc-mode calc-trail-mode))
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(error "This command works only in a regular text buffer"))
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(let* ((col1 (save-excursion (goto-char top) (current-column)))
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(col2 (save-excursion (goto-char bot) (current-column)))
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(from-buffer (current-buffer))
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(calc-was-started (get-buffer-window "*Calculator*"))
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data mat vals lnum pt pos)
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(if (= col1 col2)
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(save-excursion
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(unless (= col1 0)
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(error "Point and mark must be at beginning of line, or define a rectangle"))
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(goto-char top)
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(while (< (point) bot)
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(setq pt (point))
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(forward-line 1)
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(setq data (cons (buffer-substring pt (1- (point))) data)))
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(setq data (nreverse data)))
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(setq data (extract-rectangle top bot)))
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(calc)
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(setq mat (list 'vec)
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lnum 0)
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(when arg
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(setq arg (if (consp arg) 0 (prefix-numeric-value arg))))
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(while data
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(if (natnump arg)
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(progn
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(if (= arg 0)
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(setq arg 1000000))
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(setq pos 0
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vals (list 'vec))
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(let ((w (length (car data)))
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j v)
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(while (< pos w)
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(setq j (+ pos arg)
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v (if (>= j w)
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(math-read-expr (substring (car data) pos))
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(math-read-expr (substring (car data) pos j))))
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(if (eq (car-safe v) 'error)
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(setq vals v w 0)
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(setq vals (nconc vals (list v))
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pos j)))))
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(if (string-match "\\` *-?[0-9][0-9]?[0-9]?[0-9]?[0-9]?[0-9]? *\\'"
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(car data))
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(setq vals (list 'vec (string-to-number (car data))))
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(if (and (null arg)
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(string-match "[[{][^][{}]*[]}]" (car data)))
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(setq pos (match-beginning 0)
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vals (math-read-expr (math-match-substring (car data) 0)))
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(let ((s (if (string-match
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"\\`\\([0-9]+:[ \t]\\)?\\(.*[^, \t]\\)[, \t]*\\'"
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(car data))
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(math-match-substring (car data) 2)
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(car data))))
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(setq pos -1
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vals (math-read-expr (concat "[" s "]")))
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(if (eq (car-safe vals) 'error)
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(let ((v2 (math-read-expr s)))
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(unless (eq (car-safe v2) 'error)
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(setq vals (list 'vec v2)))))))))
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(if (eq (car-safe vals) 'error)
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(progn
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(if calc-was-started
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(pop-to-buffer from-buffer)
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(calc-quit t)
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(switch-to-buffer from-buffer))
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(goto-char top)
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(forward-line lnum)
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(forward-char (+ (nth 1 vals) (min col1 col2) pos))
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(error (nth 2 vals))))
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(unless (equal vals '(vec))
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(setq mat (cons vals mat)))
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(setq data (cdr data)
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lnum (1+ lnum)))
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(calc-slow-wrapper
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(if reduce
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(calc-enter-result 0 "grb+" (list reduce '(var add var-add)
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(nreverse mat)))
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(calc-enter-result 0 "grab" (nreverse mat))))))
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(defun calc-copy-to-buffer (nn)
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"Copy the top of stack into an editing buffer."
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(interactive "P")
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(let ((thebuf (and (not (memq major-mode '(calc-mode calc-trail-mode)))
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(current-buffer)))
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(movept nil)
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oldbuf newbuf)
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(calc-wrapper
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(save-excursion
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(calc-force-refresh)
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(let ((n (prefix-numeric-value nn))
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(eat-lnums calc-line-numbering)
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(big-offset (if (eq calc-language 'big) 1 0))
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top bot)
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(setq oldbuf (current-buffer)
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newbuf (or thebuf
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(calc-find-writable-buffer (buffer-list) 0)
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(calc-find-writable-buffer (buffer-list) 1)
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(error "No other buffer")))
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(cond ((and (or (null nn)
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(consp nn))
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(= (calc-substack-height 0)
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(- (1- (calc-substack-height 1)) big-offset)))
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(calc-cursor-stack-index 1)
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(if (looking-at
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(if calc-line-numbering "[0-9]+: *[^ \n]" " *[^ \n]"))
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(goto-char (1- (match-end 0))))
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(setq eat-lnums nil
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top (point))
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(calc-cursor-stack-index 0)
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(setq bot (- (1- (point)) big-offset)))
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((> n 0)
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(calc-cursor-stack-index n)
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(setq top (point))
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(calc-cursor-stack-index 0)
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(setq bot (- (point) big-offset)))
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((< n 0)
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(calc-cursor-stack-index (- n))
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(setq top (point))
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(calc-cursor-stack-index (1- (- n)))
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(setq bot (point)))
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(t
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(goto-char (point-min))
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(forward-line 1)
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(setq top (point))
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(calc-cursor-stack-index 0)
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(setq bot (point))))
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(save-excursion
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(set-buffer newbuf)
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(if (consp nn)
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(kill-region (region-beginning) (region-end)))
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(push-mark (point) t)
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(if (and overwrite-mode (not (consp nn)))
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(calc-overwrite-string (save-excursion
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(set-buffer oldbuf)
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(buffer-substring top bot))
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eat-lnums)
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(or (bolp) (setq eat-lnums nil))
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(insert-buffer-substring oldbuf top bot)
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(and eat-lnums
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(let ((n 1))
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(while (and (> (point) (mark))
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(progn
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(forward-line -1)
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(>= (point) (mark))))
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(delete-char 4)
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(setq n (1+ n)))
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(forward-line n))))
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(when thebuf
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(setq movept (point)))
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(when (get-buffer-window (current-buffer))
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(set-window-point (get-buffer-window (current-buffer))
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(point)))))))
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(when movept
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(goto-char movept))
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(when (and (consp nn)
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(not thebuf))
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(calc-quit t)
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(switch-to-buffer newbuf))))
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(defun calc-overwrite-string (str eat-lnums)
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(when (string-match "\n\\'" str)
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(setq str (substring str 0 -1)))
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(when eat-lnums
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(setq str (substring str 4)))
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(if (and (string-match "\\`[-+]?[0-9.]+\\(e-?[0-9]+\\)?\\'" str)
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(looking-at "[-+]?[0-9.]+\\(e-?[0-9]+\\)?"))
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(progn
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(delete-region (point) (match-end 0))
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(insert str))
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(let ((i 0))
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(while (< i (length str))
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(if (= (setq last-command-char (aref str i)) ?\n)
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(or (= i (1- (length str)))
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(let ((pt (point)))
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(end-of-line)
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(delete-region pt (point))
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(if (eobp)
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(insert "\n")
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(forward-char 1))
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(if eat-lnums (setq i (+ i 4)))))
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(self-insert-command 1))
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(setq i (1+ i))))))
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;;; First, require that buffer is visible and does not begin with "*"
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;;; Second, require only that it not begin with "*Calc"
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(defun calc-find-writable-buffer (buf mode)
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(and buf
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(if (or (string-match "\\`\\( .*\\|\\*Calc.*\\)"
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(buffer-name (car buf)))
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(and (= mode 0)
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(or (string-match "\\`\\*.*" (buffer-name (car buf)))
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(not (get-buffer-window (car buf))))))
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(calc-find-writable-buffer (cdr buf) mode)
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(car buf))))
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(defun calc-edit (n)
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(interactive "p")
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(calc-slow-wrapper
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(when (eq n 0)
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(setq n (calc-stack-size)))
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(let* ((flag nil)
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(allow-ret (> n 1))
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(list (math-showing-full-precision
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(mapcar (if (> n 1)
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(function (lambda (x)
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(math-format-flat-expr x 0)))
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(function
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(lambda (x)
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(if (math-vectorp x) (setq allow-ret t))
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(math-format-nice-expr x (frame-width)))))
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(if (> n 0)
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(calc-top-list n)
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(calc-top-list 1 (- n)))))))
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(calc-edit-mode (list 'calc-finish-stack-edit (or flag n)) allow-ret)
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(while list
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(insert (car list) "\n")
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(setq list (cdr list)))))
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(calc-show-edit-buffer))
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(defun calc-alg-edit (str)
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(calc-edit-mode '(calc-finish-stack-edit 0))
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(calc-show-edit-buffer)
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(insert str "\n")
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(backward-char 1)
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(calc-set-command-flag 'do-edit))
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(defvar calc-edit-mode-map nil "Keymap for use by the calc-edit command.")
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(if calc-edit-mode-map
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()
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(setq calc-edit-mode-map (make-sparse-keymap))
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(define-key calc-edit-mode-map "\n" 'calc-edit-finish)
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(define-key calc-edit-mode-map "\r" 'calc-edit-return)
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(define-key calc-edit-mode-map "\C-c\C-c" 'calc-edit-finish))
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(defvar calc-original-buffer)
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(defvar calc-return-buffer)
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(defvar calc-one-window)
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(defvar calc-edit-handler)
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(defvar calc-restore-trail)
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(defvar calc-allow-ret)
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(defvar calc-edit-top)
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(defun calc-edit-mode (&optional handler allow-ret title)
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"Calculator editing mode. Press RET, LFD, or C-c C-c to finish.
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To cancel the edit, simply kill the *Calc Edit* buffer."
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(interactive)
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(unless handler
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(error "This command can be used only indirectly through calc-edit"))
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(let ((oldbuf (current-buffer))
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(buf (get-buffer-create "*Calc Edit*")))
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(set-buffer buf)
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(kill-all-local-variables)
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(use-local-map calc-edit-mode-map)
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(setq buffer-read-only nil)
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(setq truncate-lines nil)
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(setq major-mode 'calc-edit-mode)
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(setq mode-name "Calc Edit")
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(run-mode-hooks 'calc-edit-mode-hook)
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(make-local-variable 'calc-original-buffer)
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(setq calc-original-buffer oldbuf)
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(make-local-variable 'calc-return-buffer)
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(setq calc-return-buffer oldbuf)
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(make-local-variable 'calc-one-window)
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(setq calc-one-window (and (one-window-p t) pop-up-windows))
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(make-local-variable 'calc-edit-handler)
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(setq calc-edit-handler handler)
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(make-local-variable 'calc-restore-trail)
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(setq calc-restore-trail (get-buffer-window (calc-trail-buffer)))
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(make-local-variable 'calc-allow-ret)
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|
(setq calc-allow-ret allow-ret)
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|
(let ((inhibit-read-only t))
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|
(erase-buffer))
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|
(add-hook 'kill-buffer-hook (lambda ()
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|
(let ((calc-edit-handler nil))
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|
(calc-edit-finish t))
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|
(message "(Cancelled)")) t t)
|
|
(insert (propertize
|
|
(concat
|
|
(or title title "Calc Edit Mode. ")
|
|
"Press `C-c C-c'"
|
|
(if allow-ret "" " or RET")
|
|
" to finish, `C-x k RET' to cancel.\n\n")
|
|
'font-lock-face 'italic 'read-only t 'rear-nonsticky t 'front-sticky t))
|
|
(make-local-variable 'calc-edit-top)
|
|
(setq calc-edit-top (point))))
|
|
(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 calc-edit-top)))
|
|
|
|
(defun calc-edit-return ()
|
|
(interactive)
|
|
(if (and (boundp 'calc-allow-ret) calc-allow-ret)
|
|
(newline)
|
|
(calc-edit-finish)))
|
|
|
|
;; The variable calc-edit-disp-trail is local to calc-edit finish, but
|
|
;; is used by calc-finish-selection-edit and calc-finish-stack-edit.
|
|
(defvar calc-edit-disp-trail)
|
|
|
|
(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)
|
|
(calc-edit-disp-trail calc-restore-trail))
|
|
(save-excursion
|
|
(when (or (null (buffer-name original))
|
|
(progn
|
|
(set-buffer original)
|
|
(not (eq major-mode 'calc-mode))))
|
|
(error "Original calculator buffer has been corrupted")))
|
|
(goto-char calc-edit-top)
|
|
(if (buffer-modified-p)
|
|
(eval calc-edit-handler))
|
|
(if (and one-window (not (one-window-p t)))
|
|
(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 calc-edit-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 calc-edit-top (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)))))
|
|
(when (eq (car-safe vals) 'error)
|
|
(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 calc-edit-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))))))))))
|
|
|
|
(provide 'calc-yank)
|
|
|
|
;;; arch-tag: ca61019e-caca-4daa-b32c-b6afe372d5b5
|
|
;;; calc-yank.el ends here
|