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bc511a64f6
Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
182 lines
4.8 KiB
EmacsLisp
182 lines
4.8 KiB
EmacsLisp
;;; calc-trail.el --- functions for manipulating the Calc "trail"
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;; Copyright (C) 1990-1993, 2001-2017 Free Software Foundation, Inc.
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;; Author: David Gillespie <daveg@synaptics.com>
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;; This file is part of GNU Emacs.
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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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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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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. If not, see <https://www.gnu.org/licenses/>.
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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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;;; 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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(and win (select-window win))))
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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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(calc))))
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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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(calc-trail-here)))
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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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(calc-trail-here)))
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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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(calc-trail-here)))
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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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(let ((win (get-buffer-window (current-buffer)))
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pos)
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(save-window-excursion
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(select-window win)
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(isearch-forward)
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(setq pos (point)))
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(goto-char pos)
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(set-window-point win pos)
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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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(let ((win (get-buffer-window (current-buffer)))
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pos)
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(save-window-excursion
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(select-window win)
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(isearch-backward)
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(setq pos (point)))
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(goto-char pos)
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(set-window-point win pos)
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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 (with-current-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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(provide 'calc-trail)
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;;; calc-trail.el ends here
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