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+;;; org-jsinfo.el --- Support for org-info.js Javascript in Org HTML export
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+
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+;; Copyright (C) 2004, 2005, 2006, 2007, 2008 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: 6.02b
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+;;
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+;; This file is 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 of the License, or
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+;; (at your option) any later version.
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+
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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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+
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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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+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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+;;
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+;;; Commentary:
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+
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+;; This file implements the support for Sebastian Rose's Javascript
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+;; org-info.js to display an org-mode file exported to HTML in an
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+;; Info-like way, or using folding similar to the outline structure
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+;; org org-mode itself.
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+
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+;; Documentation for using this module is in the Org manual. The script
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+;; itself is documented by Sebastian Rose in a file distributed with
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+;; the script. FIXME: Accurate pointers!
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+
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+;; Org-mode loads this module by default - if this is not what you want,
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+;; configure the variable `org-modules'.
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+
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+;;; Code:
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+
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+(require 'org-exp)
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+
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+(add-to-list 'org-export-inbuffer-options-extra '("INFOJS_OPT" :infojs-opt))
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+(add-hook 'org-export-options-filters 'org-infojs-handle-options)
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+
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+(defgroup org-infojs nil
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+ "Options specific for using org-info.js in HTML export of Org-mode files."
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+ :tag "Org Export HTML INFOJS"
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+ :group 'org-export-html)
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+
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+(defcustom org-export-html-use-infojs 'when-configured
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+ "Should Sebasian Rose's Java Script org-info.js be linked into HTML files?
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+This option can be nil or t to never or always use the script. It can
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+also be the symbol `when-configured', meaning that the script will be
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+linked into the export file if and only if there is a \"#+INFOJS_OPT:\"
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+line in the buffer. See also the variable `org-infojs-options'."
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+ :group 'org-export-html
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+ :group 'org-infojs
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+ :type '(choice
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+ (const :tag "Never" nil)
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+ (const :tag "When configured in buffer" when-configured)
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+ (const :tag "Always" t)))
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+
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+(defconst org-infojs-opts-table
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+ '((path PATH "http://orgmode.org/org-info.js")
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+ (view VIEW "info")
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+ (toc TOC :table-of-contents)
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+ (tdepth TOC_DEPTH "max")
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+ (sdepth SECTION_DEPTH "max")
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+ (mouse MOUSE_HINT "underline")
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+ (buttons VIEW_BUTTONS "0")
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+ (ltoc LOCAL_TOC "1")
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+ (up LINK_UP :link-up)
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+ (home LINK_HOME :link-home))
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+ "JavaScript options, long form for script, default values.")
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+
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+(defvar org-infojs-options)
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+(when (and (boundp 'org-infojs-options)
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+ (assq 'runs org-infojs-options))
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+ (setq org-infojs-options (delq (assq 'runs org-infojs-options)
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+ org-infojs-options)))
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+
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+(defcustom org-infojs-options
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+ (mapcar (lambda (x) (cons (car x) (nth 2 x)))
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+ org-infojs-opts-table)
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+ "Options settings for the INFOJS Javascript.
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+Each of the options must have an entry in `org-export-html/infojs-opts-table'.
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+The value can either be a string that will be passed to the script, or
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+a property. This property is then assumed to be a property that is defined
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+by the Export/Publishing setup of Org.
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+The `sdepth' and `tdepth' parameters can also be set to \"max\", which
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+means to use the maximum value consistent with other options."
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+ :group 'org-infojs
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+ :type
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+ `(set :greedy t :inline t
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+ ,@(mapcar
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+ (lambda (x)
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+ (list 'cons (list 'const (car x))
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+ '(choice
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+ (symbol :tag "Publishing/Export property")
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+ (string :tag "Value"))))
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+ org-infojs-opts-table)))
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+
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+(defcustom org-infojs-template
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+ "<script type=\"text/javascript\" language=\"JavaScript\" src=\"%SCRIPT_PATH\"></script>
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+<script type=\"text/javascript\" language=\"JavaScript\">
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+/* <![CDATA[ */
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+%MANAGER_OPTIONS
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+org_html_manager.setup(); // activate after the parameterd are set
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+/* ]]> */
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+</script>"
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+ "The template for the export style additions when org-info.js is used.
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+Option settings will replace the %MANAGER-OPTIONS cookie."
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+ :group 'org-infojs
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+ :type 'string)
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+
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+(defun org-infojs-handle-options (exp-plist)
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+ "Analyze JavaScript options in INFO-PLIST and modify EXP-PLIST accordingly."
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+ (if (or (not org-export-html-use-infojs)
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+ (and (eq org-export-html-use-infojs 'when-configured)
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+ (or (not (plist-get exp-plist :infojs-opt))
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+ (string-match "\\<view:nil\\>"
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+ (plist-get exp-plist :infojs-opt)))))
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+ ;; We do not want to use the script
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+ exp-plist
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+ ;; We do want to use the script, set it up
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+ (let ((template org-infojs-template)
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+ (ptoc (plist-get exp-plist :table-of-contents))
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+ (hlevels (plist-get exp-plist :headline-levels))
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+ tdepth sdepth p1 s p v a1 tmp e opt var val table default)
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+ (setq sdepth hlevels
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+ tdepth hlevels)
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+ (if (integerp ptoc) (setq tdepth (min ptoc tdepth)))
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+ (setq v (plist-get exp-plist :infojs-opt)
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+ table org-infojs-opts-table)
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+ (while (setq e (pop table))
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+ (setq opt (car e) var (nth 1 e)
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+ default (cdr (assoc opt org-infojs-options)))
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+ (and (symbolp default) (not (memq default '(t nil)))
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+ (setq default (plist-get exp-plist default)))
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+ (if (string-match (format " %s:\\(\\S-+\\)" opt) v)
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+ (setq val (match-string 1 v))
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+ (setq val default))
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+ (cond
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+ ((eq opt 'path)
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+ (and (string-match "%SCRIPT_PATH" template)
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+ (setq template (replace-match val t t template))))
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+ ((eq opt 'sdepth)
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+ (if (integerp (read val))
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+ (setq sdepth (min (read val) hlevels))))
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+ ((eq opt 'tdepth)
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+ (if (integerp (read val))
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+ (setq tdepth (min (read val) hlevels))))
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+ (t
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+ (setq val
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+ (cond
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+ ((or (eq val t) (equal val "t")) "1")
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+ ((or (eq val nil) (equal val "nil")) "0")
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+ ((stringp val) val)
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+ (t (format "%s" val))))
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+ (push (cons var val) s))))
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+
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+ ;; Now we set the depth of the *generated* TOC to SDEPTH, because the
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+ ;; toc will actually determine the splitting. How much of the toc will
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+ ;; actually be displayed is governed by the TDEPTH option.
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+ (setq exp-plist (plist-put exp-plist :table-of-contents sdepth))
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+
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+ ;; The table of contents should ot show more sections then we generate
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+ (setq tdepth (min tdepth sdepth))
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+ (push (cons "TOC_DEPTH" tdepth) s)
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+
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+ (setq s (mapconcat
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+ (lambda (x) (format "org_html_manager.set(\"%s\", \"%s\");"
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+ (car x) (cdr x)))
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+ s "\n"))
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+ (when (and s (> (length s) 0))
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+ (and (string-match "%MANAGER_OPTIONS" template)
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+ (setq s (replace-match s t t template))
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+ (setq exp-plist
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+ (plist-put
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+ exp-plist :style
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+ (concat (or (plist-get exp-plist :style) "") "\n" s)))))
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+ ;; This script absolutely needs the table of contents, to we change that
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+ ;; setting
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+ (if (not (plist-get exp-plist :table-of-contents))
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+ (setq exp-plist (plist-put exp-plist :table-of-contents t)))
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+ ;; Return the modified property list
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+ exp-plist)))
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+
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+(defun org-infojs-options-inbuffer-template ()
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+ (format "#+INFOJS_OPT: view:%s toc:%s ltoc:%s mouse:%s buttons:%s path:%s"
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+ (if (eq t org-export-html-use-infojs) (cdr (assoc 'view org-infojs-options)) nil)
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+ (let ((a (cdr (assoc 'toc org-infojs-options))))
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+ (cond ((memq a '(nil t)) a)
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+ (t (plist-get (org-infile-export-plist) :table-of-contents))))
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+ (if (equal (cdr (assoc 'ltoc org-infojs-options)) "1") t nil)
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+ (cdr (assoc 'mouse org-infojs-options))
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+ (cdr (assoc 'buttons org-infojs-options))
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+ (cdr (assoc 'path org-infojs-options))))
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+
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+(provide 'org-jsinfo)
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+
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+;; arch-tag: c71d1d85-3337-4817-a066-725e74ac9eac
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+
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+;;; org-jsinfo.el ends here
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Carsten Dominik