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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.
114 lines
3.6 KiB
EmacsLisp
114 lines
3.6 KiB
EmacsLisp
;;; makesum.el --- generate key binding summary for Emacs
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;; Copyright (C) 1985, 2001-2017 Free Software Foundation, Inc.
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;; Maintainer: emacs-devel@gnu.org
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;; Keywords: help
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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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;; Displays a nice human-readable summary of all keybindings in a
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;; two-column format.
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;;; Code:
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;;;###autoload
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(defun make-command-summary ()
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"Make a summary of current key bindings in the buffer *Summary*.
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Previous contents of that buffer are killed first."
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(interactive)
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(message "Making command summary...")
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;; This puts a description of bindings in a buffer called *Help*.
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(save-window-excursion
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(describe-bindings))
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(with-output-to-temp-buffer "*Summary*"
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(save-excursion
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(let ((cur-mode mode-name))
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(set-buffer standard-output)
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(erase-buffer)
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(insert-buffer-substring "*Help*")
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(goto-char (point-min))
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(delete-region (point) (progn (forward-line 1) (point)))
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(while (search-forward " " nil t)
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(replace-match " "))
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(goto-char (point-min))
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(while (search-forward "-@ " nil t)
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(replace-match "-SP"))
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(goto-char (point-min))
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(while (search-forward " .. ~ " nil t)
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(replace-match "SP .. ~"))
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(goto-char (point-min))
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(while (search-forward "C-?" nil t)
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(replace-match "DEL"))
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(goto-char (point-min))
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(while (search-forward "C-i" nil t)
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(replace-match "TAB"))
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(goto-char (point-min))
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(if (re-search-forward "^Local Bindings:" nil t)
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(progn
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(forward-char -1)
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(insert " for " (format-mode-line cur-mode) " Mode")
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(while (search-forward "??\n" nil t)
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(delete-region (point)
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(progn
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(forward-line -1)
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(point))))))
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(goto-char (point-min))
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(insert "Emacs command summary, " (substring (current-time-string) 0 10)
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".\n")
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;; Delete "key binding" and underlining of dashes.
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(delete-region (point) (progn (forward-line 2) (point)))
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(forward-line 1) ;Skip blank line
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(while (not (eobp))
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(let ((beg (point)))
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(or (re-search-forward "^$" nil t)
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(goto-char (point-max)))
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(double-column beg (point))
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(forward-line 1)))
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(goto-char (point-min)))))
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(message "Making command summary...done"))
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(defun double-column (start end)
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(interactive "r")
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(let (half line lines nlines
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(from-end (- (point-max) end)))
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(setq nlines (count-lines start end))
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(if (<= nlines 1)
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nil
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(setq half (/ (1+ nlines) 2))
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(goto-char start)
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(save-excursion
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(forward-line half)
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(while (< half nlines)
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(setq half (1+ half))
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(setq line (buffer-substring (point) (line-end-position)))
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(setq lines (cons line lines))
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(delete-region (point) (progn (forward-line 1) (point)))))
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(setq lines (nreverse lines))
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(while lines
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(end-of-line)
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(indent-to 41)
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(insert (car lines))
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(forward-line 1)
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(setq lines (cdr lines))))
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(goto-char (- (point-max) from-end))))
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(provide 'makesum)
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;;; makesum.el ends here
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