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Diffstat (limited to 'lisp/org/org-inlinetask.el')
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diff --git a/lisp/org/org-inlinetask.el b/lisp/org/org-inlinetask.el new file mode 100644 index 00000000000..3b3e31e2e57 --- /dev/null +++ b/lisp/org/org-inlinetask.el @@ -0,0 +1,199 @@ +;;; org-inlinetask.el --- Tasks independent of outline hierarchy +;; Copyright (C) 2009 Free Software Foundation, Inc. +;; +;; Author: Carsten Dominik <carsten at orgmode dot org> +;; Keywords: outlines, hypermedia, calendar, wp +;; Homepage: http://orgmode.org +;; Version: 6.29c +;; +;; This file is not yet part of GNU Emacs. +;; +;; GNU Emacs 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, or (at your option) +;; any later version. + +;; 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; see the file COPYING. If not, write to the +;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, +;; Boston, MA 02110-1301, USA. +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; +;;; Commentary: +;; +;; This module implements inline tasks in Org-mode. Inline tasks are +;; tasks that have all the properties of normal outline nodes, including +;; the ability to store meta data like scheduling dates, TODO state, tags +;; and properties. However, these nodes are treated specially by the +;; visibility cycling and export commands. +;; +;; Visibility cycling exempts these nodes from cycling. So whenever their +;; parent is opened, so are these tasks. This will only work with +;; `org-cycle', so if you are also using orther commands to show/hide +;; entries, you will occasionally find these tasks to behave like +;; all other outline nodes, seemingly splitting the text of the parent +;; into children. +;; +;; Export commands do not treat these nodes as part of the sectioning +;; structure, but as a special inline text that is either removed, or +;; formatted in some special way. +;; +;; Special fontification of inline tasks, so that they can be immediately +;; recognized. From the stars of the headline, only the first and the +;; last two will be visible, the others will be hidden using the +;; `org-hide' face. +;; +;; An inline task is identified solely by a minimum outline level, given +;; by the variable `org-inlinetask-min-level', default 15. +;; +;; Inline tasks are normally assumed to contain at most a time planning +;; line (DEADLINE etc) after it, and then any number of drawers, for +;; example LOGBOOK of PROPERTIES. No empty lines are allowed. +;; If you need to have normal text as part of an inline task, you +;; can do so by adding an "END" headline with the same number of stars, +;; for example +;; +;; **************** TODO some small task +;; DEADLINE: <2009-03-30 Mon> +;; :PROPERTIES: +;; :SOMETHING: or other +;; :END: +;; And here is some extra text +;; **************** END +;; +;; Also, if you want to use refiling and archiving for inline tasks, +;; The END line must be present to make things work properly. +;; +;; This package installs one new comand: +;; +;; C-c C-x t Insert a new inline task with END line + + +;;; Code + +(require 'org) + +(defgroup org-inlinetask nil + "Options concerning inline tasks in Org mode." + :tag "Org Inline Tasks" + :group 'org-structure) + +(defcustom org-inlinetask-min-level 15 + "Minimum level a headline must have before it is treated as an inline task. +It is strongly recommended that you set `org-cycle-max-level' not at all, +or to a number smaller than this one. In fact, when `org-cycle-max-level' is +not set, it will be assumed to be one less than the value of smaller than +the value of this variable." + :group 'org-inlinetask + :type 'boolean) + +(defcustom org-inlinetask-export 'arrow+content + "What should be done with inlinetasks upon export? +Possible values: + +nil Remove entirely, headline and \"content\" +arrow Insert heading in bold, preceeded by an arrow +arrow+content Insert arrow and headline, add content below in an + #+begin_example box (ugly, but works for now) + +The \"content\" of an inline task is the material below the planning +line and any drawers, up to a lines wit the same number of stars, +but containing only the word END." + :group 'org-inlinetask + :group 'org-export-general + :type '(choice + (const :tag "Remove entirely" nil) + (const :tag "Headline preceeded by arrow" arrow) + (const :tag "Arrow, headline, + content" arrow+content))) + +(defvar org-odd-levels-only) +(defvar org-keyword-time-regexp) +(defvar org-drawer-regexp) +(defvar org-complex-heading-regexp) +(defvar org-property-end-re) + +(defun org-inlinetask-insert-task () + "Insert an inline task." + (interactive) + (or (bolp) (newline)) + (insert (make-string org-inlinetask-min-level ?*) " \n" + (make-string org-inlinetask-min-level ?*) " END\n") + (end-of-line -1)) +(define-key org-mode-map "\C-c\C-xt" 'org-inlinetask-insert-task) + +(defun org-inlinetask-export-handler () + "Handle headlines with level larger or equal to `org-inlinetask-min-level'. +Either remove headline and meta data, or do special formatting." + (goto-char (point-min)) + (let* ((nstars (if org-odd-levels-only + (1- (* 2 (or org-inlinetask-min-level 200))) + (or org-inlinetask-min-level 200))) + (re1 (format "^\\(\\*\\{%d,\\}\\) .*\n" nstars)) + (re2 (concat "^[ \t]*" org-keyword-time-regexp)) + headline beg end stars content) + (while (re-search-forward re1 nil t) + (setq headline (match-string 0) + stars (match-string 1) + content nil) + (replace-match "") + (while (looking-at re2) + (delete-region (point) (1+ (point-at-eol)))) + (while (looking-at org-drawer-regexp) + (setq beg (point)) + (if (re-search-forward org-property-end-re nil t) + (delete-region beg (1+ (match-end 0))))) + (setq beg (point)) + (when (and (re-search-forward "^\\(\\*+\\) " nil t) + (= (length (match-string 1)) (length stars)) + (progn (goto-char (match-end 0)) + (looking-at "END[ \t]*$"))) + (setq content (buffer-substring beg (1- (point-at-bol)))) + (delete-region beg (1+ (match-end 0)))) + (goto-char beg) + (when (and org-inlinetask-export + (string-match org-complex-heading-regexp headline)) + (when (memq org-inlinetask-export '(arrow+content arrow)) + (insert "\n\n\\Rightarrow\\Rightarrow\\Rightarrow *" + (if (match-end 2) (concat (match-string 2 headline) " ") "") + (match-string 4 headline) "*\n")) + (when (and content (eq org-inlinetask-export 'arrow+content)) + (insert "#+BEGIN_EXAMPLE\n" content "\n#+END_EXAMPLE\n")) + (insert "\n"))))) + +(defun org-inlinetask-fontify (limit) + "Fontify the inline tasks." + (let* ((nstars (if org-odd-levels-only + (1- (* 2 (or org-inlinetask-min-level 200))) + (or org-inlinetask-min-level 200))) + (re (concat "^\\(\\*\\)\\(\\*\\{" + (format "%d" (- nstars 3)) + ",\\}\\)\\(\\*\\* .*\\)"))) + (while (re-search-forward re limit t) + (add-text-properties (match-beginning 1) (match-end 1) + '(face org-warning font-lock-fontified t)) + (add-text-properties (match-beginning 2) (match-end 2) + '(face org-hide font-lock-fontified t)) + (add-text-properties (match-beginning 3) (match-end 3) + '(face shadow font-lock-fontified t))))) + +(defun org-inlinetask-remove-END-maybe () + "Remove an END line when present." + (when (looking-at (format "\\([ \t]*\n\\)*\\*\\{%d,\\}[ \t]+END[ \t]*$" + org-inlinetask-min-level)) + (replace-match ""))) + +(eval-after-load "org-exp" + '(add-hook 'org-export-preprocess-after-tree-selection-hook + 'org-inlinetask-export-handler)) +(eval-after-load "org" + '(add-hook 'org-font-lock-hook 'org-inlinetask-fontify)) + +(provide 'org-inlinetask) + +;;; org-inlinetask.el ends here + |