legacy-dotfiles/emacs/.emacs.d/site-lisp/oni-outline.el

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2015-12-18 20:48:59 +01:00
;;; oni-outline.el --- Extra functions and commands for outline-mode -*- lexical-binding: t; -*-
;; Copyright (C) 2015 Tom Willemse
;; Author: Tom Willemse <tom@ryuslash.org>
;; Keywords:
;; This program is free software; you can redistribute it and/or modify
;; 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.
;; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; Here are some extra commands and functions for `outline-mode'.
;;; Code:
(require 'outline)
;;;###autoload
(defun oni:set-tab-maybe-toggle-outline ()
"Wrap the current function mapped to `TAB'."
(let ((func (or (lookup-key (current-local-map) (kbd "TAB"))
(lookup-key (current-global-map) (kbd "TAB")))))
(local-set-key (kbd "TAB")
(lambda ()
(interactive)
(if (outline-on-heading-p)
(if (outline-invisible-p (line-end-position))
(outline-show-entry)
(outline-hide-entry))
(call-interactively func))))))
;;;###autoload
(defun oni:outline-toggle-entry ()
"Show or hide an outline entry depending on its current state."
(interactive)
(if (outline-on-heading-p)
(if (eql (save-excursion
(end-of-line)
(outline-invisible-p))
'outline)
(outline-show-entry)
(outline-hide-entry))))
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(provide 'oni-outline)
;;; oni-outline.el ends here