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97 lines
3.6 KiB
EmacsLisp
97 lines
3.6 KiB
EmacsLisp
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;; Copyright (C) 2009-2011 Free Software Foundation, Inc.
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;; Author: Chris Gray <chrismgray@gmail.com>
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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 <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;; This package generalizes the #+begin_foo and #+end_foo tokens.
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;; To use, put the following in your init file:
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;;
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;; (require 'org-special-blocks)
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;; The tokens #+begin_center, #+begin_verse, etc. existed previously.
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;; This package generalizes them (at least for the LaTeX and html
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;; exporters). When a #+begin_foo token is encountered by the LaTeX
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;; exporter, it is expanded into \begin{foo}. The text inside the
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;; environment is not protected, as text inside environments generally
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;; is. When #+begin_foo is encountered by the html exporter, a div
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;; with class foo is inserted into the HTML file. It is up to the
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;; user to add this class to his or her stylesheet if this div is to
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;; mean anything.
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(require 'org-compat)
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(defvar org-special-blocks-ignore-regexp "^\\(LaTeX\\|HTML\\)$"
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"A regexp indicating the names of blocks that should be ignored
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by org-special-blocks. These blocks will presumably be
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interpreted by other mechanisms.")
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(defvar org-export-current-backend) ; dynamically bound in org-exp.el
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(defun org-special-blocks-make-special-cookies ()
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"Adds special cookies when #+begin_foo and #+end_foo tokens are
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seen. This is run after a few special cases are taken care of."
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(when (or (eq org-export-current-backend 'html)
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(eq org-export-current-backend 'latex))
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(goto-char (point-min))
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(while (re-search-forward "^[ \t]*#\\+\\(begin\\|end\\)_\\(.*\\)$" nil t)
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(unless (org-string-match-p org-special-blocks-ignore-regexp (match-string 2))
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(replace-match
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(if (equal (downcase (match-string 1)) "begin")
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(concat "ORG-" (match-string 2) "-START")
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(concat "ORG-" (match-string 2) "-END"))
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t t)))))
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(add-hook 'org-export-preprocess-after-blockquote-hook
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'org-special-blocks-make-special-cookies)
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(defun org-special-blocks-convert-latex-special-cookies ()
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"Converts the special cookies into LaTeX blocks."
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(goto-char (point-min))
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(while (re-search-forward "^ORG-\\([^ \t\n]*\\)[ \t]*\\(.*\\)-\\(START\\|END\\)$" nil t)
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(replace-match
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(if (equal (match-string 3) "START")
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(concat "\\begin{" (match-string 1) "}" (match-string 2))
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(concat "\\end{" (match-string 1) "}"))
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t t)))
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(add-hook 'org-export-latex-after-blockquotes-hook
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'org-special-blocks-convert-latex-special-cookies)
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(defvar line)
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(defun org-special-blocks-convert-html-special-cookies ()
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"Converts the special cookies into div blocks."
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;; Uses the dynamically-bound variable `line'.
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(when (string-match "^ORG-\\(.*\\)-\\(START\\|END\\)$" line)
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; (org-close-par-maybe)
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(message "%s" (match-string 1))
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(if (equal (match-string 2 line) "START")
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(insert "<div class=\"" (match-string 1 line) "\">\n")
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(insert "</div>\n"))
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(throw 'nextline nil)))
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(add-hook 'org-export-html-after-blockquotes-hook
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'org-special-blocks-convert-html-special-cookies)
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(provide 'org-special-blocks)
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;;; org-special-blocks.el ends here
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