inst/reveal.js-3.3.0.1/plugin/markdown/markdown.js - IDS-Mannheim/revealjs - Gitiles

 /**
  * The reveal.js markdown plugin. Handles parsing of
  * markdown inside of presentations as well as loading
  * of external markdown documents.
  */
 (function( root, factory ) {
 	if (typeof define === 'function' && define.amd) {
 		root.marked = require( './marked' );
 		root.RevealMarkdown = factory( root.marked );
 		root.RevealMarkdown.initialize();
 	} else if( typeof exports === 'object' ) {
 		module.exports = factory( require( './marked' ) );
 	} else {
 		// Browser globals (root is window)
 		root.RevealMarkdown = factory( root.marked );
 		root.RevealMarkdown.initialize();
 	}
 }( this, function( marked ) {

 	if( typeof marked === 'undefined' ) {
 		throw 'The reveal.js Markdown plugin requires marked to be loaded';
 	}

 	if( typeof hljs !== 'undefined' ) {
 		marked.setOptions({
 			highlight: function( lang, code ) {
 				return hljs.highlightAuto( lang, code ).value;
 			}
 		});
 	}

 	var DEFAULT_SLIDE_SEPARATOR = '^\r?\n---\r?\n$',
 		DEFAULT_NOTES_SEPARATOR = 'note:',
 		DEFAULT_ELEMENT_ATTRIBUTES_SEPARATOR = '\\\.element\\\s*?(.+?)$',
 		DEFAULT_SLIDE_ATTRIBUTES_SEPARATOR = '\\\.slide:\\\s*?(\\\S.+?)$';

 	var SCRIPT_END_PLACEHOLDER = '__SCRIPT_END__';


 	/**
 	 * Retrieves the markdown contents of a slide section
 	 * element. Normalizes leading tabs/whitespace.
 	 */
 	function getMarkdownFromSlide( section ) {

 		var template = section.querySelector( 'script' );

 		// strip leading whitespace so it isn't evaluated as code
 		var text = ( template || section ).textContent;

 		// restore script end tags
 		text = text.replace( new RegExp( SCRIPT_END_PLACEHOLDER, 'g' ), '</script>' );

 		var leadingWs = text.match( /^\n?(\s*)/ )[1].length,
 			leadingTabs = text.match( /^\n?(\t*)/ )[1].length;

 		if( leadingTabs > 0 ) {
 			text = text.replace( new RegExp('\\n?\\t{' + leadingTabs + '}','g'), '\n' );
 		}
 		else if( leadingWs > 1 ) {
 			text = text.replace( new RegExp('\\n? {' + leadingWs + '}', 'g'), '\n' );
 		}

 		return text;

 	}

 	/**
 	 * Given a markdown slide section element, this will
 	 * return all arguments that aren't related to markdown
 	 * parsing. Used to forward any other user-defined arguments
 	 * to the output markdown slide.
 	 */
 	function getForwardedAttributes( section ) {

 		var attributes = section.attributes;
 		var result = [];

 		for( var i = 0, len = attributes.length; i < len; i++ ) {
 			var name = attributes[i].name,
 				value = attributes[i].value;

 			// disregard attributes that are used for markdown loading/parsing
 			if( /data\-(markdown|separator|vertical|notes)/gi.test( name ) ) continue;

 			if( value ) {
 				result.push( name + '="' + value + '"' );
 			}
 			else {
 				result.push( name );
 			}
 		}

 		return result.join( ' ' );

 	}

 	/**
 	 * Inspects the given options and fills out default
 	 * values for what's not defined.
 	 */
 	function getSlidifyOptions( options ) {

 		options = options || {};
 		options.separator = options.separator || DEFAULT_SLIDE_SEPARATOR;
 		options.notesSeparator = options.notesSeparator || DEFAULT_NOTES_SEPARATOR;
 		options.attributes = options.attributes || '';

 		return options;

 	}

 	/**
 	 * Helper function for constructing a markdown slide.
 	 */
 	function createMarkdownSlide( content, options ) {

 		options = getSlidifyOptions( options );

 		var notesMatch = content.split( new RegExp( options.notesSeparator, 'mgi' ) );

 		if( notesMatch.length === 2 ) {
 			content = notesMatch[0] + '<aside class="notes">' + marked(notesMatch[1].trim()) + '</aside>';
 		}

 		// prevent script end tags in the content from interfering
 		// with parsing
 		content = content.replace( /<\/script>/g, SCRIPT_END_PLACEHOLDER );

 		return '<script type="text/template">' + content + '</script>';

 	}

 	/**
 	 * Parses a data string into multiple slides based
 	 * on the passed in separator arguments.
 	 */
 	function slidify( markdown, options ) {

 		options = getSlidifyOptions( options );

 		var separatorRegex = new RegExp( options.separator + ( options.verticalSeparator ? '|' + options.verticalSeparator : '' ), 'mg' ),
 			horizontalSeparatorRegex = new RegExp( options.separator );

 		var matches,
 			lastIndex = 0,
 			isHorizontal,
 			wasHorizontal = true,
 			content,
 			sectionStack = [];

 		// iterate until all blocks between separators are stacked up
 		while( matches = separatorRegex.exec( markdown ) ) {
 			notes = null;

 			// determine direction (horizontal by default)
 			isHorizontal = horizontalSeparatorRegex.test( matches[0] );

 			if( !isHorizontal && wasHorizontal ) {
 				// create vertical stack
 				sectionStack.push( [] );
 			}

 			// pluck slide content from markdown input
 			content = markdown.substring( lastIndex, matches.index );

 			if( isHorizontal && wasHorizontal ) {
 				// add to horizontal stack
 				sectionStack.push( content );
 			}
 			else {
 				// add to vertical stack
 				sectionStack[sectionStack.length-1].push( content );
 			}

 			lastIndex = separatorRegex.lastIndex;
 			wasHorizontal = isHorizontal;
 		}

 		// add the remaining slide
 		( wasHorizontal ? sectionStack : sectionStack[sectionStack.length-1] ).push( markdown.substring( lastIndex ) );

 		var markdownSections = '';

 		// flatten the hierarchical stack, and insert <section data-markdown> tags
 		for( var i = 0, len = sectionStack.length; i < len; i++ ) {
 			// vertical
 			if( sectionStack[i] instanceof Array ) {
 				markdownSections += '<section '+ options.attributes +'>';

 				sectionStack[i].forEach( function( child ) {
 					markdownSections += '<section data-markdown>' +  createMarkdownSlide( child, options ) + '</section>';
 				} );

 				markdownSections += '</section>';
 			}
 			else {
 				markdownSections += '<section '+ options.attributes +' data-markdown>' + createMarkdownSlide( sectionStack[i], options ) + '</section>';
 			}
 		}

 		return markdownSections;

 	}

 	/**
 	 * Parses any current data-markdown slides, splits
 	 * multi-slide markdown into separate sections and
 	 * handles loading of external markdown.
 	 */
 	function processSlides() {

 		var sections = document.querySelectorAll( '[data-markdown]'),
 			section;

 		for( var i = 0, len = sections.length; i < len; i++ ) {

 			section = sections[i];

 			if( section.getAttribute( 'data-markdown' ).length ) {

 				var xhr = new XMLHttpRequest(),
 					url = section.getAttribute( 'data-markdown' );

 				datacharset = section.getAttribute( 'data-charset' );

 				// see https://developer.mozilla.org/en-US/docs/Web/API/element.getAttribute#Notes
 				if( datacharset != null && datacharset != '' ) {
 					xhr.overrideMimeType( 'text/html; charset=' + datacharset );
 				}

 				xhr.onreadystatechange = function() {
 					if( xhr.readyState === 4 ) {
 						// file protocol yields status code 0 (useful for local debug, mobile applications etc.)
 						if ( ( xhr.status >= 200 && xhr.status < 300 ) || xhr.status === 0 ) {

 							section.outerHTML = slidify( xhr.responseText, {
 								separator: section.getAttribute( 'data-separator' ),
 								verticalSeparator: section.getAttribute( 'data-separator-vertical' ),
 								notesSeparator: section.getAttribute( 'data-separator-notes' ),
 								attributes: getForwardedAttributes( section )
 							});

 						}
 						else {

 							section.outerHTML = '<section data-state="alert">' +
 								'ERROR: The attempt to fetch ' + url + ' failed with HTTP status ' + xhr.status + '.' +
 								'Check your browser\'s JavaScript console for more details.' +
 								'<p>Remember that you need to serve the presentation HTML from a HTTP server.</p>' +
 								'</section>';

 						}
 					}
 				};

 				xhr.open( 'GET', url, false );

 				try {
 					xhr.send();
 				}
 				catch ( e ) {
 					alert( 'Failed to get the Markdown file ' + url + '. Make sure that the presentation and the file are served by a HTTP server and the file can be found there. ' + e );
 				}

 			}
 			else if( section.getAttribute( 'data-separator' ) || section.getAttribute( 'data-separator-vertical' ) || section.getAttribute( 'data-separator-notes' ) ) {

 				section.outerHTML = slidify( getMarkdownFromSlide( section ), {
 					separator: section.getAttribute( 'data-separator' ),
 					verticalSeparator: section.getAttribute( 'data-separator-vertical' ),
 					notesSeparator: section.getAttribute( 'data-separator-notes' ),
 					attributes: getForwardedAttributes( section )
 				});

 			}
 			else {
 				section.innerHTML = createMarkdownSlide( getMarkdownFromSlide( section ) );
 			}
 		}

 	}

 	/**
 	 * Check if a node value has the attributes pattern.
 	 * If yes, extract it and add that value as one or several attributes
 	 * the the terget element.
 	 *
 	 * You need Cache Killer on Chrome to see the effect on any FOM transformation
 	 * directly on refresh (F5)
 	 * http://stackoverflow.com/questions/5690269/disabling-chrome-cache-for-website-development/7000899#answer-11786277
 	 */
 	function addAttributeInElement( node, elementTarget, separator ) {

 		var mardownClassesInElementsRegex = new RegExp( separator, 'mg' );
 		var mardownClassRegex = new RegExp( "([^\"= ]+?)=\"([^\"=]+?)\"", 'mg' );
 		var nodeValue = node.nodeValue;
 		if( matches = mardownClassesInElementsRegex.exec( nodeValue ) ) {

 			var classes = matches[1];
 			nodeValue = nodeValue.substring( 0, matches.index ) + nodeValue.substring( mardownClassesInElementsRegex.lastIndex );
 			node.nodeValue = nodeValue;
 			while( matchesClass = mardownClassRegex.exec( classes ) ) {
 				elementTarget.setAttribute( matchesClass[1], matchesClass[2] );
 			}
 			return true;
 		}
 		return false;
 	}

 	/**
 	 * Add attributes to the parent element of a text node,
 	 * or the element of an attribute node.
 	 */
 	function addAttributes( section, element, previousElement, separatorElementAttributes, separatorSectionAttributes ) {

 		if ( element != null && element.childNodes != undefined && element.childNodes.length > 0 ) {
 			previousParentElement = element;
 			for( var i = 0; i < element.childNodes.length; i++ ) {
 				childElement = element.childNodes[i];
 				if ( i > 0 ) {
 					j = i - 1;
 					while ( j >= 0 ) {
 						aPreviousChildElement = element.childNodes[j];
 						if ( typeof aPreviousChildElement.setAttribute == 'function' && aPreviousChildElement.tagName != "BR" ) {
 							previousParentElement = aPreviousChildElement;
 							break;
 						}
 						j = j - 1;
 					}
 				}
 				parentSection = section;
 				if( childElement.nodeName ==  "section" ) {
 					parentSection = childElement ;
 					previousParentElement = childElement ;
 				}
 				if ( typeof childElement.setAttribute == 'function' || childElement.nodeType == Node.COMMENT_NODE ) {
 					addAttributes( parentSection, childElement, previousParentElement, separatorElementAttributes, separatorSectionAttributes );
 				}
 			}
 		}

 		if ( element.nodeType == Node.COMMENT_NODE ) {
 			if ( addAttributeInElement( element, previousElement, separatorElementAttributes ) == false ) {
 				addAttributeInElement( element, section, separatorSectionAttributes );
 			}
 		}
 	}

 	/**
 	 * Converts any current data-markdown slides in the
 	 * DOM to HTML.
 	 */
 	function convertSlides() {

 		var sections = document.querySelectorAll( '[data-markdown]');

 		for( var i = 0, len = sections.length; i < len; i++ ) {

 			var section = sections[i];

 			// Only parse the same slide once
 			if( !section.getAttribute( 'data-markdown-parsed' ) ) {

 				section.setAttribute( 'data-markdown-parsed', true )

 				var notes = section.querySelector( 'aside.notes' );
 				var markdown = getMarkdownFromSlide( section );

 				section.innerHTML = marked( markdown );
 				addAttributes( 	section, section, null, section.getAttribute( 'data-element-attributes' ) ||
 								section.parentNode.getAttribute( 'data-element-attributes' ) ||
 								DEFAULT_ELEMENT_ATTRIBUTES_SEPARATOR,
 								section.getAttribute( 'data-attributes' ) ||
 								section.parentNode.getAttribute( 'data-attributes' ) ||
 								DEFAULT_SLIDE_ATTRIBUTES_SEPARATOR);

 				// If there were notes, we need to re-add them after
 				// having overwritten the section's HTML
 				if( notes ) {
 					section.appendChild( notes );
 				}

 			}

 		}

 	}

 	// API
 	return {

 		initialize: function() {
 			processSlides();
 			convertSlides();
 		},

 		// TODO: Do these belong in the API?
 		processSlides: processSlides,
 		convertSlides: convertSlides,
 		slidify: slidify

 	};

 }));
	/**
	* The reveal.js markdown plugin. Handles parsing of
	* markdown inside of presentations as well as loading
	* of external markdown documents.
	*/
	(function( root, factory ) {
	if (typeof define === 'function' && define.amd) {
	root.marked = require( './marked' );
	root.RevealMarkdown = factory( root.marked );
	root.RevealMarkdown.initialize();
	} else if( typeof exports === 'object' ) {
	module.exports = factory( require( './marked' ) );
	} else {
	// Browser globals (root is window)
	root.RevealMarkdown = factory( root.marked );
	root.RevealMarkdown.initialize();
	}
	}( this, function( marked ) {

	if( typeof marked === 'undefined' ) {
	throw 'The reveal.js Markdown plugin requires marked to be loaded';
	}

	if( typeof hljs !== 'undefined' ) {
	marked.setOptions({
	highlight: function( lang, code ) {
	return hljs.highlightAuto( lang, code ).value;
	}
	});
	}

	var DEFAULT_SLIDE_SEPARATOR = '^\r?\n---\r?\n$',
	DEFAULT_NOTES_SEPARATOR = 'note:',
	DEFAULT_ELEMENT_ATTRIBUTES_SEPARATOR = '\\\.element\\\s*?(.+?)$',
	DEFAULT_SLIDE_ATTRIBUTES_SEPARATOR = '\\\.slide:\\\s*?(\\\S.+?)$';

	var SCRIPT_END_PLACEHOLDER = '__SCRIPT_END__';


	/**
	* Retrieves the markdown contents of a slide section
	* element. Normalizes leading tabs/whitespace.
	*/
	function getMarkdownFromSlide( section ) {

	var template = section.querySelector( 'script' );

	// strip leading whitespace so it isn't evaluated as code
	var text = ( template \|\| section ).textContent;

	// restore script end tags
	text = text.replace( new RegExp( SCRIPT_END_PLACEHOLDER, 'g' ), '</script>' );

	var leadingWs = text.match( /^\n?(\s*)/ )[1].length,
	leadingTabs = text.match( /^\n?(\t*)/ )[1].length;

	if( leadingTabs > 0 ) {
	text = text.replace( new RegExp('\\n?\\t{' + leadingTabs + '}','g'), '\n' );
	}
	else if( leadingWs > 1 ) {
	text = text.replace( new RegExp('\\n? {' + leadingWs + '}', 'g'), '\n' );
	}

	return text;

	}

	/**
	* Given a markdown slide section element, this will
	* return all arguments that aren't related to markdown
	* parsing. Used to forward any other user-defined arguments
	* to the output markdown slide.
	*/
	function getForwardedAttributes( section ) {

	var attributes = section.attributes;
	var result = [];

	for( var i = 0, len = attributes.length; i < len; i++ ) {
	var name = attributes[i].name,
	value = attributes[i].value;

	// disregard attributes that are used for markdown loading/parsing
	if( /data\-(markdown\|separator\|vertical\|notes)/gi.test( name ) ) continue;

	if( value ) {
	result.push( name + '="' + value + '"' );
	}
	else {
	result.push( name );
	}
	}

	return result.join( ' ' );

	}

	/**
	* Inspects the given options and fills out default
	* values for what's not defined.
	*/
	function getSlidifyOptions( options ) {

	options = options \|\| {};
	options.separator = options.separator \|\| DEFAULT_SLIDE_SEPARATOR;
	options.notesSeparator = options.notesSeparator \|\| DEFAULT_NOTES_SEPARATOR;
	options.attributes = options.attributes \|\| '';

	return options;

	}

	/**
	* Helper function for constructing a markdown slide.
	*/
	function createMarkdownSlide( content, options ) {

	options = getSlidifyOptions( options );

	var notesMatch = content.split( new RegExp( options.notesSeparator, 'mgi' ) );

	if( notesMatch.length === 2 ) {
	content = notesMatch[0] + '<aside class="notes">' + marked(notesMatch[1].trim()) + '</aside>';
	}

	// prevent script end tags in the content from interfering
	// with parsing
	content = content.replace( /<\/script>/g, SCRIPT_END_PLACEHOLDER );

	return '<script type="text/template">' + content + '</script>';

	}

	/**
	* Parses a data string into multiple slides based
	* on the passed in separator arguments.
	*/
	function slidify( markdown, options ) {

	options = getSlidifyOptions( options );

	var separatorRegex = new RegExp( options.separator + ( options.verticalSeparator ? '\|' + options.verticalSeparator : '' ), 'mg' ),
	horizontalSeparatorRegex = new RegExp( options.separator );

	var matches,
	lastIndex = 0,
	isHorizontal,
	wasHorizontal = true,
	content,
	sectionStack = [];

	// iterate until all blocks between separators are stacked up
	while( matches = separatorRegex.exec( markdown ) ) {
	notes = null;

	// determine direction (horizontal by default)
	isHorizontal = horizontalSeparatorRegex.test( matches[0] );

	if( !isHorizontal && wasHorizontal ) {
	// create vertical stack
	sectionStack.push( [] );
	}

	// pluck slide content from markdown input
	content = markdown.substring( lastIndex, matches.index );

	if( isHorizontal && wasHorizontal ) {
	// add to horizontal stack
	sectionStack.push( content );
	}
	else {
	// add to vertical stack
	sectionStack[sectionStack.length-1].push( content );
	}

	lastIndex = separatorRegex.lastIndex;
	wasHorizontal = isHorizontal;
	}

	// add the remaining slide
	( wasHorizontal ? sectionStack : sectionStack[sectionStack.length-1] ).push( markdown.substring( lastIndex ) );

	var markdownSections = '';

	// flatten the hierarchical stack, and insert <section data-markdown> tags
	for( var i = 0, len = sectionStack.length; i < len; i++ ) {
	// vertical
	if( sectionStack[i] instanceof Array ) {
	markdownSections += '<section '+ options.attributes +'>';

	sectionStack[i].forEach( function( child ) {
	markdownSections += '<section data-markdown>' + createMarkdownSlide( child, options ) + '</section>';
	} );

	markdownSections += '</section>';
	}
	else {
	markdownSections += '<section '+ options.attributes +' data-markdown>' + createMarkdownSlide( sectionStack[i], options ) + '</section>';
	}
	}

	return markdownSections;

	}

	/**
	* Parses any current data-markdown slides, splits
	* multi-slide markdown into separate sections and
	* handles loading of external markdown.
	*/
	function processSlides() {

	var sections = document.querySelectorAll( '[data-markdown]'),
	section;

	for( var i = 0, len = sections.length; i < len; i++ ) {

	section = sections[i];

	if( section.getAttribute( 'data-markdown' ).length ) {

	var xhr = new XMLHttpRequest(),
	url = section.getAttribute( 'data-markdown' );

	datacharset = section.getAttribute( 'data-charset' );

	// see https://developer.mozilla.org/en-US/docs/Web/API/element.getAttribute#Notes
	if( datacharset != null && datacharset != '' ) {
	xhr.overrideMimeType( 'text/html; charset=' + datacharset );
	}

	xhr.onreadystatechange = function() {
	if( xhr.readyState === 4 ) {
	// file protocol yields status code 0 (useful for local debug, mobile applications etc.)
	if ( ( xhr.status >= 200 && xhr.status < 300 ) \|\| xhr.status === 0 ) {

	section.outerHTML = slidify( xhr.responseText, {
	separator: section.getAttribute( 'data-separator' ),
	verticalSeparator: section.getAttribute( 'data-separator-vertical' ),
	notesSeparator: section.getAttribute( 'data-separator-notes' ),
	attributes: getForwardedAttributes( section )
	});

	}
	else {

	section.outerHTML = '<section data-state="alert">' +
	'ERROR: The attempt to fetch ' + url + ' failed with HTTP status ' + xhr.status + '.' +
	'Check your browser\'s JavaScript console for more details.' +
	'<p>Remember that you need to serve the presentation HTML from a HTTP server.</p>' +
	'</section>';

	}
	}
	};

	xhr.open( 'GET', url, false );

	try {
	xhr.send();
	}
	catch ( e ) {
	alert( 'Failed to get the Markdown file ' + url + '. Make sure that the presentation and the file are served by a HTTP server and the file can be found there. ' + e );
	}

	}
	else if( section.getAttribute( 'data-separator' ) \|\| section.getAttribute( 'data-separator-vertical' ) \|\| section.getAttribute( 'data-separator-notes' ) ) {

	section.outerHTML = slidify( getMarkdownFromSlide( section ), {
	separator: section.getAttribute( 'data-separator' ),
	verticalSeparator: section.getAttribute( 'data-separator-vertical' ),
	notesSeparator: section.getAttribute( 'data-separator-notes' ),
	attributes: getForwardedAttributes( section )
	});

	}
	else {
	section.innerHTML = createMarkdownSlide( getMarkdownFromSlide( section ) );
	}
	}

	}

	/**
	* Check if a node value has the attributes pattern.
	* If yes, extract it and add that value as one or several attributes
	* the the terget element.
	*
	* You need Cache Killer on Chrome to see the effect on any FOM transformation
	* directly on refresh (F5)
	* http://stackoverflow.com/questions/5690269/disabling-chrome-cache-for-website-development/7000899#answer-11786277
	*/
	function addAttributeInElement( node, elementTarget, separator ) {

	var mardownClassesInElementsRegex = new RegExp( separator, 'mg' );
	var mardownClassRegex = new RegExp( "([^\"= ]+?)=\"([^\"=]+?)\"", 'mg' );
	var nodeValue = node.nodeValue;
	if( matches = mardownClassesInElementsRegex.exec( nodeValue ) ) {

	var classes = matches[1];
	nodeValue = nodeValue.substring( 0, matches.index ) + nodeValue.substring( mardownClassesInElementsRegex.lastIndex );
	node.nodeValue = nodeValue;
	while( matchesClass = mardownClassRegex.exec( classes ) ) {
	elementTarget.setAttribute( matchesClass[1], matchesClass[2] );
	}
	return true;
	}
	return false;
	}

	/**
	* Add attributes to the parent element of a text node,
	* or the element of an attribute node.
	*/
	function addAttributes( section, element, previousElement, separatorElementAttributes, separatorSectionAttributes ) {

	if ( element != null && element.childNodes != undefined && element.childNodes.length > 0 ) {
	previousParentElement = element;
	for( var i = 0; i < element.childNodes.length; i++ ) {
	childElement = element.childNodes[i];
	if ( i > 0 ) {
	j = i - 1;
	while ( j >= 0 ) {
	aPreviousChildElement = element.childNodes[j];
	if ( typeof aPreviousChildElement.setAttribute == 'function' && aPreviousChildElement.tagName != "BR" ) {
	previousParentElement = aPreviousChildElement;
	break;
	}
	j = j - 1;
	}
	}
	parentSection = section;
	if( childElement.nodeName == "section" ) {
	parentSection = childElement ;
	previousParentElement = childElement ;
	}
	if ( typeof childElement.setAttribute == 'function' \|\| childElement.nodeType == Node.COMMENT_NODE ) {
	addAttributes( parentSection, childElement, previousParentElement, separatorElementAttributes, separatorSectionAttributes );
	}
	}
	}

	if ( element.nodeType == Node.COMMENT_NODE ) {
	if ( addAttributeInElement( element, previousElement, separatorElementAttributes ) == false ) {
	addAttributeInElement( element, section, separatorSectionAttributes );
	}
	}
	}

	/**
	* Converts any current data-markdown slides in the
	* DOM to HTML.
	*/
	function convertSlides() {

	var sections = document.querySelectorAll( '[data-markdown]');

	for( var i = 0, len = sections.length; i < len; i++ ) {

	var section = sections[i];

	// Only parse the same slide once
	if( !section.getAttribute( 'data-markdown-parsed' ) ) {

	section.setAttribute( 'data-markdown-parsed', true )

	var notes = section.querySelector( 'aside.notes' );
	var markdown = getMarkdownFromSlide( section );

	section.innerHTML = marked( markdown );
	addAttributes( section, section, null, section.getAttribute( 'data-element-attributes' ) \|\|
	section.parentNode.getAttribute( 'data-element-attributes' ) \|\|
	DEFAULT_ELEMENT_ATTRIBUTES_SEPARATOR,
	section.getAttribute( 'data-attributes' ) \|\|
	section.parentNode.getAttribute( 'data-attributes' ) \|\|
	DEFAULT_SLIDE_ATTRIBUTES_SEPARATOR);

	// If there were notes, we need to re-add them after
	// having overwritten the section's HTML
	if( notes ) {
	section.appendChild( notes );
	}

	}

	}

	}

	// API
	return {

	initialize: function() {
	processSlides();
	convertSlides();
	},

	// TODO: Do these belong in the API?
	processSlides: processSlides,
	convertSlides: convertSlides,
	slidify: slidify

	};

	}));