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emacs/lisp/makesum.el

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;;; makesum.el --- generate key binding summary for Emacs
;; Copyright (C) 1985, 2001-2012 Free Software Foundation, Inc.
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;; Maintainer: FSF
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;; Keywords: help
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;; This file is part of GNU Emacs.
;; 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
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
;; Displays a nice human-readable summary of all keybindings in a
;; two-column format.
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;;; Code:
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;;;###autoload
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(defun make-command-summary ()
"Make a summary of current key bindings in the buffer *Summary*.
Previous contents of that buffer are killed first."
(interactive)
(message "Making command summary...")
;; This puts a description of bindings in a buffer called *Help*.
(save-window-excursion
(describe-bindings))
(with-output-to-temp-buffer "*Summary*"
(save-excursion
(let ((cur-mode mode-name))
(set-buffer standard-output)
(erase-buffer)
(insert-buffer-substring "*Help*")
(goto-char (point-min))
(delete-region (point) (progn (forward-line 1) (point)))
(while (search-forward " " nil t)
(replace-match " "))
(goto-char (point-min))
(while (search-forward "-@ " nil t)
(replace-match "-SP"))
(goto-char (point-min))
(while (search-forward " .. ~ " nil t)
(replace-match "SP .. ~"))
(goto-char (point-min))
(while (search-forward "C-?" nil t)
(replace-match "DEL"))
(goto-char (point-min))
(while (search-forward "C-i" nil t)
(replace-match "TAB"))
(goto-char (point-min))
(if (re-search-forward "^Local Bindings:" nil t)
(progn
(forward-char -1)
(insert " for " (format-mode-line cur-mode) " Mode")
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(while (search-forward "??\n" nil t)
(delete-region (point)
(progn
(forward-line -1)
(point))))))
(goto-char (point-min))
(insert "Emacs command summary, " (substring (current-time-string) 0 10)
".\n")
;; Delete "key binding" and underlining of dashes.
(delete-region (point) (progn (forward-line 2) (point)))
(forward-line 1) ;Skip blank line
(while (not (eobp))
(let ((beg (point)))
(or (re-search-forward "^$" nil t)
(goto-char (point-max)))
(double-column beg (point))
(forward-line 1)))
(goto-char (point-min)))))
(message "Making command summary...done"))
(defun double-column (start end)
(interactive "r")
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(let (half line lines nlines
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(from-end (- (point-max) end)))
(setq nlines (count-lines start end))
(if (<= nlines 1)
nil
(setq half (/ (1+ nlines) 2))
(goto-char start)
(save-excursion
(forward-line half)
(while (< half nlines)
(setq half (1+ half))
Use line-end-position rather than end-of-line, etc. * textmodes/texnfo-upd.el (texinfo-start-menu-description) (texinfo-update-menu-region-beginning, texinfo-menu-first-node) (texinfo-delete-existing-pointers, texinfo-find-pointer) (texinfo-clean-up-node-line, texinfo-insert-node-lines) (texinfo-multiple-files-update): * textmodes/table.el (table--probe-cell-left-up) (table--probe-cell-right-bottom): * textmodes/picture.el (picture-tab-search): * textmodes/page-ext.el (pages-copy-header-and-position) (pages-directory-for-addresses): * progmodes/vera-mode.el (vera-get-offset): * progmodes/simula.el (simula-calculate-indent): * progmodes/python.el (python-pdbtrack-overlay-arrow): * progmodes/prolog.el (end-of-prolog-clause): * progmodes/perl-mode.el (perl-calculate-indent, perl-indent-exp): * progmodes/icon.el (indent-icon-exp): * progmodes/etags.el (tag-re-match-p): * progmodes/ebrowse.el (ebrowse-show-file-name-at-point): * progmodes/ebnf2ps.el (ebnf-begin-file): * progmodes/dcl-mode.el (dcl-back-to-indentation-1) (dcl-save-local-variable): * play/life.el (life-setup): * play/gametree.el (gametree-looking-at-ply): * nxml/nxml-maint.el (nxml-insert-target-repertoire-glyph-set): * mail/sendmail.el (mail-mode-auto-fill): * emacs-lisp/lisp-mode.el (calculate-lisp-indent): * emacs-lisp/edebug.el (edebug-overlay-arrow): * emacs-lisp/checkdoc.el (checkdoc-this-string-valid): * woman.el (woman-parse-numeric-value, woman2-TH, woman2-SH) (woman-tab-to-tab-stop, WoMan-warn-ignored): * type-break.el (type-break-file-keystroke-count): * term.el (term-replace-by-expanded-history-before-point) (term-skip-prompt, term-extract-string): * speedbar.el (speedbar-edit-line, speedbar-expand-line) (speedbar-contract-line, speedbar-toggle-line-expansion) (speedbar-parse-c-or-c++tag, speedbar-parse-tex-string) (speedbar-buffer-revert-buffer, speedbar-highlight-one-tag-line): * sort.el (sort-skip-fields): * skeleton.el (skeleton-internal-list): * simple.el (line-move-finish, line-move-to-column): * shell.el (shell-forward-command): * misc.el (copy-from-above-command): * makesum.el (double-column): * ebuff-menu.el (electric-buffer-update-highlight): * dired.el (dired-move-to-end-of-filename): * dframe.el (dframe-popup-kludge): * bookmark.el (bookmark-kill-line, bookmark-bmenu-show-filenames): * arc-mode.el (archive-get-lineno): Use line-end-position and line-beginning-position. * net/ange-ftp.el, progmodes/hideif.el, reposition.el: Same, but only in comments.
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(setq line (buffer-substring (point) (line-end-position)))
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(setq lines (cons line lines))
(delete-region (point) (progn (forward-line 1) (point)))))
(setq lines (nreverse lines))
(while lines
(end-of-line)
(indent-to 41)
(insert (car lines))
(forward-line 1)
(setq lines (cdr lines))))
(goto-char (- (point-max) from-end))))
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(provide 'makesum)
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;;; makesum.el ends here