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- ;; Calculator for GNU Emacs, part II [calc-yank.el]
- ;; Copyright (C) 1990, 1991, 1992, 1993 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.
- (defun calc-yank ()
- (interactive)
- (calc-wrapper
- (calc-pop-push-record-list
- 0 "yank"
- (if (eq (car-safe calc-last-kill) (car kill-ring-yank-pointer))
- (cdr calc-last-kill)
- (if (stringp (car kill-ring-yank-pointer))
- (let ((val (math-read-exprs
- (calc-clean-newlines (car kill-ring-yank-pointer)))))
- (if (eq (car-safe val) 'error)
- (progn
- (setq val (math-read-exprs (car kill-ring-yank-pointer)))
- (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 (screen-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) (screen-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)))))))))
- )
-
-
-
-
-