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2e53d9b137
Stephen Eglen says these commas should not be there.
258 lines
9.3 KiB
EmacsLisp
258 lines
9.3 KiB
EmacsLisp
;;; org-mtags.el --- Muse-like tags in Org-mode
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;; Copyright (C) 2008, 2009 Free Software Foundation, Inc.
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;;
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;; Author: Carsten Dominik <carsten at orgmode dot org>
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;; Keywords: outlines, hypermedia, calendar, wp
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;; Homepage: http://orgmode.org
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;; Version: 0.01
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;;
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;; This file is not yet part of GNU Emacs.
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;;
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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, or (at your option)
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;; 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; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;;; Commentary:
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;;
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;; This modules implements some of the formatting tags available in
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;; Emacs Muse. This is not a way if adding new functionality, but just
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;; a different way to write some formatting directives. The advantage is
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;; that files written in this way can be read by Muse reasonably well,
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;; and that this provides an alternative way of writing formatting
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;; directives in Org, a way that some might find more pleasant to type
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;; and look at that the Org's #+BEGIN..#+END notation.
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;; The goal of this development is to make it easier for people to
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;; move between both worlds as they see fit for different tasks.
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;; The following muse tags will be translated during export into their
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;; native Org equivalents:
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;;
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;; <br>
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;; Needs to be at the end of a line. Will be translated to "\\".
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;;
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;; <example switches="-n -r">
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;; Needs to be on a line by itself, similarly the </example> tag.
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;; Will be translated into Org's #+BEGIN_EXAMPLE construct.
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;;
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;; <quote>
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;; Needs to be on a line by itself, similarly the </quote> tag.
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;; Will be translated into Org's #+BEGIN_QUOTE construct.
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;;
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;; <comment>
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;; Needs to be on a line by itself, similarly the </comment> tag.
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;; Will be translated into Org's #+BEGIN_COMMENT construct.
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;;
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;; <verse>
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;; Needs to be on a line by itself, similarly the </verse> tag.
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;; Will be translated into Org's #+BEGIN_VERSE construct.
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;;
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;; <contents>
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;; This gets translated into "[TABLE-OF-CONTENTS]". It will not
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;; trigger the production of a table of contents - that is done
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;; in Org with the "#+OPTIONS: toc:t" setting. But it will define
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;; the location where the TOC will be placed.
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;;
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;; <literal style="STYLE"> ;; only latex, html, and docbook supported
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;; in Org.
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;; Needs to be on a line by itself, similarly the </literal> tag.
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;;
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;; <src lang="LANG" switches="-n -r">
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;; Needs to be on a line by itself, similarly the </src> tag.
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;; Will be translated into Org's BEGIN_SRC construct.
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;;
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;; <include file="FILE" markup="MARKUP" lang="LANG"
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;; prefix="str" prefix1="str" switches="-n -r">
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;; Needs to be on a line by itself.
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;; Will be translated into Org's #+INCLUDE construct.
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;;
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;; The lisp/perl/ruby/python tags can be implemented using the
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;; `org-eval.el' module, which see.
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(require 'org)
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;;; Customization
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(defgroup org-mtags nil
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"Options concerning Muse tags in Org mode."
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:tag "Org Muse Tags"
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:group 'org)
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(defface org-mtags ; similar to shadow
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(org-compatible-face 'shadow
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'((((class color grayscale) (min-colors 88) (background light))
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(:foreground "grey50"))
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(((class color grayscale) (min-colors 88) (background dark))
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(:foreground "grey70"))
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(((class color) (min-colors 8) (background light))
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(:foreground "green"))
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(((class color) (min-colors 8) (background dark))
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(:foreground "yellow"))))
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"Face for Muse-like tags in Org."
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:group 'org-mtags
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:group 'org-faces)
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(defcustom org-mtags-prefer-muse-templates t
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"Non-nil means prefere Muse tags for structure elements.
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This is relevane when expanding the templates defined in the variable
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`org-structure-templates'."
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:group 'org-mtags
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:type 'boolean)
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(defconst org-mtags-supported-tags
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'("example" "quote" "comment" "verse" "contents" "literal" "src" "include")
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"The tags that are supported by org-mtags.el for conversion.
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In addition to this list, the <br> tag is supported as well.")
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(defconst org-mtags-fontification-re
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(concat
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"^[ \t]*</?\\("
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(mapconcat 'identity org-mtags-supported-tags "\\|")
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"\\)\\>[^>]*>\\|<br>[ \t]*$")
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"Regular expression used for fontifying muse tags.")
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(defun org-mtags-replace ()
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"Replace Muse-like tags with the appropriate Org constructs.
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The is done in the entire buffer."
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(interactive) ;; FIXME
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(let ((re (concat "^[ \t]*\\(</?\\("
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(mapconcat 'identity org-mtags-supported-tags "\\|")
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"\\)\\>\\)"))
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info tag rpl style markup lang file prefix prefix1 switches)
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;; First, do the <br> tag
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(goto-char (point-min))
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(while (re-search-forward "<br>[ \t]*$" nil t)
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(replace-match "\\\\" t t))
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;; Now, all the other tags
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(goto-char (point-min))
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(while (re-search-forward re nil t)
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(goto-char (match-beginning 1))
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(setq info (org-mtags-get-tag-and-attributes))
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(if (not info)
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(end-of-line 1)
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(setq tag (plist-get info :tag))
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(cond
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((equal tag "contents")
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(setq rpl "[TABLE-OF-CONTENTS]")
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;; FIXME: also trigger TOC in options-plist?????
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)
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((member tag '("quote" "comment" "verse"))
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(if (plist-get info :closing)
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(setq rpl (format "#+END_%s" (upcase tag)))
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(setq rpl (format "#+BEGIN_%s" (upcase tag)))))
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((equal tag "literal")
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(setq style (plist-get info :style))
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(and style (setq style (downcase style)))
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(if (plist-get info :closing)
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(setq rpl (cond
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((member style '("latex"))
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"#+END_LaTeX")
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((member style '("html"))
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"#+END_HTML")
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((member style '("docbook"))
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"#+END_DOCBOOK")
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((member style '("ascii"))
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"#+END_ASCII")))
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(setq rpl (cond
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((member style '("latex"))
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"#+BEGIN_LaTeX")
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((member style '("html"))
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"#+BEGIN_HTML")
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((member style '("ascii"))
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"#+BEGIN_ASCII")))))
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((equal tag "example")
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(if (plist-get info :closing)
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(setq rpl "#+END_EXAMPLE")
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(setq rpl "#+BEGIN_EXAMPLE")
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(when (setq switches (plist-get info :switches))
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(setq rpl (concat rpl " " switches)))))
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((equal tag "src")
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(if (plist-get info :closing)
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(setq rpl "#+END_SRC")
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(setq rpl "#+BEGIN_SRC")
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(when (setq lang (plist-get info :lang))
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(setq rpl (concat rpl " " lang))
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(when (setq switches (plist-get info :switches))
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(setq rpl (concat rpl " " switches))))))
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((equal tag "include")
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(setq file (plist-get info :file)
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markup (downcase (plist-get info :markup))
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lang (plist-get info :lang)
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prefix (plist-get info :prefix)
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prefix1 (plist-get info :prefix1)
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switches (plist-get info :switches))
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(setq rpl "#+INCLUDE")
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(setq rpl (concat rpl " " (prin1-to-string file)))
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(when markup
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(setq rpl (concat rpl " " markup))
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(when (and (equal markup "src") lang)
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(setq rpl (concat rpl " " lang))))
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(when prefix
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(setq rpl (concat rpl " :prefix " (prin1-to-string prefix))))
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(when prefix1
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(setq rpl (concat rpl " :prefix1 " (prin1-to-string prefix1))))
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(when switches
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(setq rpl (concat rpl " " switches)))))
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(when rpl
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(goto-char (plist-get info :match-beginning))
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(delete-region (point-at-bol) (plist-get info :match-end))
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(insert rpl))))))
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(defun org-mtags-get-tag-and-attributes ()
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"Parse a Muse-like tag at point ant rturn the information about it.
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The return value is a property list which contains all the attributes
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with string values. In addition, it reutnrs the following properties:
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:tag The tag as a string.
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:match-beginning The beginning of the match, just before \"<\".
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:match-end The end of the match, just after \">\".
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:closing t when the tag starts with \"</\"."
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(when (looking-at "<\\(/\\)?\\([a-zA-Z]+\\>\\)\\([^>]*\\)>")
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(let ((start 0)
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tag rest prop attributes endp val)
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(setq tag (org-match-string-no-properties 2)
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endp (match-end 1)
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rest (and (match-end 3)
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(org-match-string-no-properties 3))
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attributes (list :tag tag
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:match-beginning (match-beginning 0)
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:match-end (match-end 0)
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:closing endp))
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(when rest
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(while (string-match "\\([a-zA-Z]+\\)=\\([^ \t\n>]+\\|\"[^>]+\"\\)"
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rest start)
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(setq start (match-end 0)
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prop (org-match-string-no-properties 1 rest)
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val (org-remove-double-quotes
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(org-match-string-no-properties 2 rest)))
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(setq attributes (plist-put attributes
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(intern (concat ":" prop)) val))))
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attributes)))
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(defun org-mtags-fontify-tags (limit)
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"Fontify the muse-like tags."
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(while (re-search-forward org-mtags-fontification-re limit t)
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(add-text-properties (match-beginning 0) (match-end 0)
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'(face org-mtags font-lock-multiline t
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font-lock-fontified t))))
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(add-hook 'org-export-preprocess-hook 'org-mtags-replace)
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(add-hook 'org-font-lock-hook 'org-mtags-fontify-tags)
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(provide 'org-mtags)
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;;; org-mtags.el ends here
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