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- ;; Calculator for GNU Emacs, part II [calc-trail.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-trail () nil)
-
-
- ;;; Trail commands.
-
- (defun calc-trail-in ()
- (interactive)
- (let ((win (get-buffer-window (calc-trail-display t))))
- (and win (select-window win)))
- )
-
- (defun calc-trail-out ()
- (interactive)
- (calc-select-buffer)
- (let ((win (get-buffer-window (current-buffer))))
- (if win
- (progn
- (select-window win)
- (calc-align-stack-window))
- (calc)))
- )
-
- (defun calc-trail-next (n)
- (interactive "p")
- (calc-with-trail-buffer
- (forward-line n)
- (calc-trail-here))
- )
-
- (defun calc-trail-previous (n)
- (interactive "p")
- (calc-with-trail-buffer
- (forward-line (- n))
- (calc-trail-here))
- )
-
- (defun calc-trail-first (n)
- (interactive "p")
- (calc-with-trail-buffer
- (goto-char (point-min))
- (forward-line n)
- (calc-trail-here))
- )
-
- (defun calc-trail-last (n)
- (interactive "p")
- (calc-with-trail-buffer
- (goto-char (point-max))
- (forward-line (- n))
- (calc-trail-here))
- )
-
- (defun calc-trail-scroll-left (n)
- (interactive "P")
- (let ((curwin (selected-window)))
- (calc-with-trail-buffer
- (unwind-protect
- (progn
- (select-window (get-buffer-window (current-buffer)))
- (calc-scroll-left n))
- (select-window curwin))))
- )
-
- (defun calc-trail-scroll-right (n)
- (interactive "P")
- (let ((curwin (selected-window)))
- (calc-with-trail-buffer
- (unwind-protect
- (progn
- (select-window (get-buffer-window (current-buffer)))
- (calc-scroll-right n))
- (select-window curwin))))
- )
-
- (defun calc-trail-forward (n)
- (interactive "p")
- (calc-with-trail-buffer
- (forward-line (* n (1- (window-height))))
- (calc-trail-here))
- )
-
- (defun calc-trail-backward (n)
- (interactive "p")
- (calc-with-trail-buffer
- (forward-line (- (* n (1- (window-height)))))
- (calc-trail-here))
- )
-
- (defun calc-trail-isearch-forward ()
- (interactive)
- (calc-with-trail-buffer
- (save-window-excursion
- (select-window (get-buffer-window (current-buffer)))
- (let ((search-exit-char ?\r))
- (isearch-forward)))
- (calc-trail-here))
- )
-
- (defun calc-trail-isearch-backward ()
- (interactive)
- (calc-with-trail-buffer
- (save-window-excursion
- (select-window (get-buffer-window (current-buffer)))
- (let ((search-exit-char ?\r))
- (isearch-backward)))
- (calc-trail-here))
- )
-
- (defun calc-trail-yank (arg)
- (interactive "P")
- (calc-wrapper
- (or arg (calc-set-command-flag 'hold-trail))
- (calc-enter-result 0 "yank"
- (calc-with-trail-buffer
- (if arg
- (forward-line (- (prefix-numeric-value arg))))
- (if (or (looking-at "Emacs Calc")
- (looking-at "----")
- (looking-at " ? ? ?[^ \n]* *$")
- (looking-at "..?.?$"))
- (error "Can't yank that line"))
- (if (looking-at ".*, \\.\\.\\., ")
- (error "Can't yank (vector was abbreviated)"))
- (forward-char 4)
- (search-forward " ")
- (let* ((next (save-excursion (forward-line 1) (point)))
- (str (buffer-substring (point) (1- next)))
- (val (save-excursion
- (set-buffer save-buf)
- (math-read-plain-expr str))))
- (if (eq (car-safe val) 'error)
- (error "Can't yank that line: %s" (nth 2 val))
- val)))))
- )
-
- (defun calc-trail-marker (str)
- (interactive "sText to insert in trail: ")
- (calc-with-trail-buffer
- (forward-line 1)
- (let ((buffer-read-only nil))
- (insert "---- " str "\n"))
- (forward-line -1)
- (calc-trail-here))
- )
-
- (defun calc-trail-kill (n)
- (interactive "p")
- (calc-with-trail-buffer
- (let ((buffer-read-only nil))
- (save-restriction
- (narrow-to-region ; don't delete "Emacs Trail" header
- (save-excursion
- (goto-char (point-min))
- (forward-line 1)
- (point))
- (point-max))
- (kill-line n)))
- (calc-trail-here))
- )
-
-
-
-