2001-11-19 07:44:56 +00:00
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;;; calc-trail.el --- functions for manipulating the Calc "trail"
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2005-07-14 20:05:30 +00:00
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;; Copyright (C) 1990, 1991, 1992, 1993, 2001, 2002, 2003, 2004,
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2008-01-07 01:14:52 +00:00
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;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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2001-11-19 07:44:56 +00:00
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;; Author: David Gillespie <daveg@synaptics.com>
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2007-04-23 21:30:42 +00:00
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;; Maintainer: Jay Belanger <jay.p.belanger@gmail.com>
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2001-11-06 18:59:06 +00:00
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;; This file is part of GNU Emacs.
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2007-03-19 20:59:53 +00:00
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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2007-07-25 03:51:22 +00:00
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;; the Free Software Foundation; either version 3, or (at your option)
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2007-03-19 20:59:53 +00:00
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;; any later version.
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2001-11-06 18:59:06 +00:00
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;; GNU Emacs is distributed in the hope that it will be useful,
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2007-03-19 20:59:53 +00:00
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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2001-11-06 18:59:06 +00:00
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2001-11-19 07:44:56 +00:00
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;;; Commentary:
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2001-11-06 18:59:06 +00:00
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2001-11-19 07:44:56 +00:00
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;;; Code:
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2001-11-06 18:59:06 +00:00
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;; This file is autoloaded from calc-ext.el.
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2004-11-30 17:26:19 +00:00
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(require 'calc-ext)
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2001-11-06 18:59:06 +00:00
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(require 'calc-macs)
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;;; Trail commands.
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(defun calc-trail-in ()
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(interactive)
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(let ((win (get-buffer-window (calc-trail-display t))))
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2001-11-14 09:09:09 +00:00
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(and win (select-window win))))
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2001-11-06 18:59:06 +00:00
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(defun calc-trail-out ()
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(interactive)
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(calc-select-buffer)
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(let ((win (get-buffer-window (current-buffer))))
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(if win
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(progn
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(select-window win)
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(calc-align-stack-window))
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2001-11-14 09:09:09 +00:00
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(calc))))
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2001-11-06 18:59:06 +00:00
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(defun calc-trail-next (n)
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(interactive "p")
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(calc-with-trail-buffer
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(forward-line n)
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2001-11-14 09:09:09 +00:00
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(calc-trail-here)))
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2001-11-06 18:59:06 +00:00
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(defun calc-trail-previous (n)
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(interactive "p")
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(calc-with-trail-buffer
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(forward-line (- n))
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(calc-trail-here)))
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(defun calc-trail-first (n)
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(interactive "p")
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(calc-with-trail-buffer
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(goto-char (point-min))
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(forward-line n)
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2001-11-14 09:09:09 +00:00
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(calc-trail-here)))
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2001-11-06 18:59:06 +00:00
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(defun calc-trail-last (n)
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(interactive "p")
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(calc-with-trail-buffer
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(goto-char (point-max))
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(forward-line (- n))
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2001-11-14 09:09:09 +00:00
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(calc-trail-here)))
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2001-11-06 18:59:06 +00:00
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(defun calc-trail-scroll-left (n)
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(interactive "P")
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(let ((curwin (selected-window)))
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(calc-with-trail-buffer
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(unwind-protect
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(progn
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(select-window (get-buffer-window (current-buffer)))
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(calc-scroll-left n))
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(select-window curwin)))))
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(defun calc-trail-scroll-right (n)
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(interactive "P")
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(let ((curwin (selected-window)))
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(calc-with-trail-buffer
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(unwind-protect
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(progn
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(select-window (get-buffer-window (current-buffer)))
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(calc-scroll-right n))
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(select-window curwin)))))
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(defun calc-trail-forward (n)
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(interactive "p")
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(calc-with-trail-buffer
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(forward-line (* n (1- (window-height))))
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(calc-trail-here)))
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(defun calc-trail-backward (n)
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(interactive "p")
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(calc-with-trail-buffer
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(forward-line (- (* n (1- (window-height)))))
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(calc-trail-here)))
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(defun calc-trail-isearch-forward ()
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(interactive)
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(calc-with-trail-buffer
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(save-window-excursion
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(select-window (get-buffer-window (current-buffer)))
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(let ((search-exit-char ?\r))
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(isearch-forward)))
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2001-11-14 09:09:09 +00:00
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(calc-trail-here)))
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(defun calc-trail-isearch-backward ()
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(interactive)
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(calc-with-trail-buffer
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(save-window-excursion
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(select-window (get-buffer-window (current-buffer)))
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(let ((search-exit-char ?\r))
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(isearch-backward)))
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(calc-trail-here)))
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(defun calc-trail-yank (arg)
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(interactive "P")
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(calc-wrapper
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(or arg (calc-set-command-flag 'hold-trail))
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(calc-enter-result 0 "yank"
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(calc-with-trail-buffer
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(if arg
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(forward-line (- (prefix-numeric-value arg))))
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(if (or (looking-at "Emacs Calc")
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(looking-at "----")
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(looking-at " ? ? ?[^ \n]* *$")
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(looking-at "..?.?$"))
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(error "Can't yank that line"))
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(if (looking-at ".*, \\.\\.\\., ")
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(error "Can't yank (vector was abbreviated)"))
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(forward-char 4)
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(search-forward " ")
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(let* ((next (save-excursion (forward-line 1) (point)))
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(str (buffer-substring (point) (1- next)))
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(val (save-excursion
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(set-buffer save-buf)
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(math-read-plain-expr str))))
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(if (eq (car-safe val) 'error)
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(error "Can't yank that line: %s" (nth 2 val))
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val))))))
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(defun calc-trail-marker (str)
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(interactive "sText to insert in trail: ")
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(calc-with-trail-buffer
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(forward-line 1)
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(let ((buffer-read-only nil))
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(insert "---- " str "\n"))
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(forward-line -1)
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(calc-trail-here)))
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(defun calc-trail-kill (n)
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(interactive "p")
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(calc-with-trail-buffer
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(let ((buffer-read-only nil))
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(save-restriction
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(narrow-to-region ; don't delete "Emacs Trail" header
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(save-excursion
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(goto-char (point-min))
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(forward-line 1)
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(point))
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(point-max))
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(kill-line n)))
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(calc-trail-here)))
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2001-11-06 18:59:06 +00:00
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2004-11-30 17:26:19 +00:00
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(provide 'calc-trail)
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2008-04-10 14:10:46 +00:00
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;; arch-tag: 59b76655-d882-4aab-a3ee-b83870e530d0
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2001-11-14 09:09:09 +00:00
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;;; calc-trail.el ends here
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