diff --git a/wp-includes/js/tinymce/wp-tinymce-schema.js b/wp-includes/js/tinymce/wp-tinymce-schema.js
new file mode 100644
index 0000000000..afd03d225d
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+++ b/wp-includes/js/tinymce/wp-tinymce-schema.js
@@ -0,0 +1,892 @@
+/**
+ * Schema.js
+ *
+ * Copyright, Moxiecode Systems AB
+ * Released under LGPL License.
+ *
+ * License: http://www.tinymce.com/license
+ * Contributing: http://www.tinymce.com/contributing
+ */
+
+(function(tinymce) {
+	var mapCache = {}, makeMap = tinymce.makeMap, each = tinymce.each;
+
+	function split(str, delim) {
+		return str.split(delim || ',');
+	};
+
+	/**
+	 * Unpacks the specified lookup and string data it will also parse it into an object
+	 * map with sub object for it's children. This will later also include the attributes.
+	 */
+	function unpack(lookup, data) {
+		var key, elements = {};
+
+		function replace(value) {
+			return value.replace(/[A-Z]+/g, function(key) {
+				return replace(lookup[key]);
+			});
+		};
+
+		// Unpack lookup
+		for (key in lookup) {
+			if (lookup.hasOwnProperty(key))
+				lookup[key] = replace(lookup[key]);
+		}
+
+		// Unpack and parse data into object map
+		replace(data).replace(/#/g, '#text').replace(/(\w+)\[([^\]]+)\]\[([^\]]*)\]/g, function(str, name, attributes, children) {
+			attributes = split(attributes, '|');
+
+			elements[name] = {
+				attributes : makeMap(attributes),
+				attributesOrder : attributes,
+				children : makeMap(children, '|', {'#comment' : {}})
+			}
+		});
+
+		return elements;
+	};
+
+	/**
+	 * Returns the HTML5 schema and caches it in the mapCache.
+	 */
+	function getHTML5() {
+		var html5 = mapCache.html5;
+
+		if (!html5) {
+			html5 = mapCache.html5 = unpack({
+					A : 'id|accesskey|class|dir|draggable|item|hidden|itemprop|role|spellcheck|style|subject|title|onclick|ondblclick|onmousedown|onmouseup|onmouseover|onmousemove|onmouseout|onkeypress|onkeydown|onkeyup|lang|xml:lang|dir',
+					B : '#|a|abbr|area|audio|b|bdo|br|button|canvas|cite|code|command|datalist|del|dfn|em|embed|i|iframe|img|input|ins|kbd|keygen|label|link|map|mark|meta|' +
+						'meter|noscript|object|output|progress|q|ruby|samp|script|select|small|span|strong|sub|sup|svg|textarea|time|var|video|wbr|acronym|basefont|font|big|strike|s|u|tt|applet',
+					C : '#|a|abbr|area|address|article|aside|audio|b|bdo|blockquote|br|button|canvas|cite|code|command|datalist|del|details|dfn|dialog|div|dl|em|embed|fieldset|' +
+						'figure|footer|form|h1|h2|h3|h4|h5|h6|header|hgroup|hr|i|iframe|img|input|ins|kbd|keygen|label|link|map|mark|menu|meta|meter|nav|noscript|ol|object|output|' +
+						'p|pre|progress|q|ruby|samp|script|section|select|small|span|strong|style|sub|sup|svg|table|textarea|time|ul|var|video|acronym|basefont|font|big|strike|s|u|tt|applet|isindex|noframes|center|dir'
+				}, 'html[A|manifest][body|head]' +
+					'head[A][base|command|link|meta|noscript|script|style|title]' +
+					'title[A][#]' +
+					'base[A|href|target][]' +
+					'link[A|href|rel|media|type|sizes][]' +
+					'meta[A|http-equiv|name|content|charset][]' +
+					'style[A|type|media|scoped|xml:space][#]' +
+					'script[A|charset|type|src|defer|async|language|xml:space][#]' +
+					'noscript[A][C]' +
+					'body[A|onload|onunload|background|bgcolor|text|link|vlink|alink][C]' +
+					'section[A][C]' +
+					'nav[A][C]' +
+					'article[A][C]' +
+					'aside[A][C]' +
+					'h1[A|align][B]' +
+					'h2[A|align][B]' +
+					'h3[A|align][B]' +
+					'h4[A|align][B]' +
+					'h5[A|align][B]' +
+					'h6[A|align][B]' +
+					'hgroup[A][h1|h2|h3|h4|h5|h6]' +
+					'header[A][C]' +
+					'footer[A][C]' +
+					'address[A][C]' +
+					'p[A|align][B]' +
+					'br[A|clear][]' +
+					'pre[A|width|xml:space][B]' +
+					'dialog[A][dd|dt]' +
+					'blockquote[A|cite][C]' +
+					'ol[A|start|reversed|type|compact][li]' +
+					'ul[A|type|compact][li]' +
+					'li[A|value|type][C]' +
+					'dl[A|compact][dd|dt]' +
+					'dt[A][B]' +
+					'dd[A][C]' +
+					'a[A|href|target|ping|rel|media|type|tabindex|onfocus|onblur|charset|name|hreflang|rev|shape|coords][B]' +
+					'em[A][B]' +
+					'strong[A][B]' +
+					'small[A][B]' +
+					'cite[A][B]' +
+					'q[A|cite][B]' +
+					'dfn[A][B]' +
+					'abbr[A][B]' +
+					'code[A][B]' +
+					'var[A][B]' +
+					'samp[A][B]' +
+					'kbd[A][B]' +
+					'sub[A][B]' +
+					'sup[A][B]' +
+					'i[A][B]' +
+					'b[A][B]' +
+					'mark[A][B]' +
+					'progress[A|value|max][B]' +
+					'meter[A|value|min|max|low|high|optimum][B]' +
+					'time[A|datetime][B]' +
+					'ruby[A][B|rt|rp]' +
+					'rt[A][B]' +
+					'rp[A][B]' +
+					'bdo[A][B]' +
+					'span[A][B]' +
+					'ins[A|cite|datetime][C]' +
+					'del[A|cite|datetime][C]' +
+					'figure[A][C|legend|figcaption]' +
+					'figcaption[A][C]' +
+					'img[A|alt|src|height|width|usemap|ismap|name|longdesc|align|border|hspace|vspace][]' +
+					'iframe[A|name|src|height|width|sandbox|seamless|longdesc|frameborder|marginwidth|marginheight|scrolling|align][]' +
+					'embed[A|src|height|width|type][]' +
+					'object[*][]' +
+					'param[A|name|value|valuetype|type][]' +
+					'details[A|open][C|legend]' +
+					'command[A|type|label|icon|disabled|checked|radiogroup][]' +
+					'menu[A|type|label|compact][C|li]' +
+					'legend[A|align][C|B]' +
+					'div[A|align][C]' +
+					'source[A|src|type|media][]' +
+					'audio[A|src|autobuffer|autoplay|loop|controls][source]' +
+					'video[A|src|autobuffer|autoplay|loop|controls|width|height|poster][source]' +
+					'hr[A|align|noshade|size|width][]' +
+					'form[A|accept-charset|action|autocomplete|enctype|method|name|novalidate|target|onsubmit|onreset|accept][C]' +
+					'fieldset[A|disabled|form|name][C|legend]' +
+					'label[A|form|for|onfocus|onblur][B]' +
+					'input[A|type|accept|alt|autocomplete|autofocus|checked|disabled|form|formaction|formenctype|formmethod|formnovalidate|formtarget|height|list|max|maxlength|min|' +
+						'multiple|pattern|placeholder|readonly|required|size|src|step|width|files|value|name|tabindex|onfocus|onblur|usemap|onselect|onchange|align][]' +
+					'button[A|autofocus|disabled|form|formaction|formenctype|formmethod|formnovalidate|formtarget|name|value|type|tabindex|onfocus|onblur][B]' +
+					'select[A|autofocus|disabled|form|multiple|name|size|tabindex|onfocus|onblur|onchange][option|optgroup]' +
+					'datalist[A][B|option]' +
+					'optgroup[A|disabled|label][option]' +
+					'option[A|disabled|selected|label|value][]' +
+					'textarea[A|autofocus|disabled|form|maxlength|name|placeholder|readonly|required|rows|cols|wrap|tabindex|onfocus|onblur|onselect|onchange][]' +
+					'keygen[A|autofocus|challenge|disabled|form|keytype|name][]' +
+					'output[A|for|form|name][B]' +
+					'canvas[A|width|height][]' +
+					'map[A|name][B|C]' +
+					'area[A|shape|coords|href|alt|target|media|rel|ping|type|tabindex|onfocus|onblur|nohref][]' +
+					'mathml[A][]' +
+					'svg[A][]' +
+					'table[A|border|summary|width|frame|rules|cellspacing|cellpadding|align|bgcolor][caption|colgroup|thead|tfoot|tbody|tr]' +
+					'caption[A|align][C]' +
+					'colgroup[A|span|width|align|char|charoff|valign][col]' +
+					'col[A|span|width|align|char|charoff|valign][]' +
+					'thead[A|align|char|charoff|valign][tr]' +
+					'tfoot[A|align|char|charoff|valign][tr]' +
+					'tbody[A|align|char|charoff|valign][tr]' +
+					'tr[A|align|char|charoff|valign|bgcolor][th|td]' +
+					'th[A|headers|rowspan|colspan|scope|abbr|axis|align|char|charoff|valign|nowrap|bgcolor|width|height][C]' +
+					'td[A|headers|rowspan|colspan|abbr|axis|scope|align|char|charoff|valign|nowrap|bgcolor|width|height][C]' +
+					'wbr[A][]' +
+					'applet[id|class|style|title|codebase|archive|code|object|alt|name|width|height|align|hspace|vspace][C]' +
+					'tt[A][B]' +
+					'u[A][B]' +
+					's[A][B]' +
+					'strike[A][B]' +
+					'big[A][B]' +
+					'font[id|class|style|title|lang|xml:lang|dir|size|color|face][B]' +
+					'basefont[id|size|color|face][]' +
+					'acronym[A][C]' +
+					'dir[A][li]' +
+					'center[A][C]' +
+					'noframes[A][C]' +
+					'isindex[id|class|style|title|lang|xml:lang|dir|prompt][]'
+			);
+		}
+
+		return html5;
+	};
+
+	/**
+	 * Returns the HTML4 schema and caches it in the mapCache.
+	 */
+	function getHTML4() {
+		var html4 = mapCache.html4;
+
+		if (!html4) {
+			// This is the XHTML 1.0 transitional elements with it's attributes and children packed to reduce it's size
+			html4 = mapCache.html4 = unpack({
+				Z : 'H|K|N|O|P',
+				Y : 'X|form|R|Q',
+				ZG : 'E|span|width|align|char|charoff|valign',
+				X : 'p|T|div|U|W|isindex|fieldset|table',
+				ZF : 'E|align|char|charoff|valign',
+				W : 'pre|hr|blockquote|address|center|noframes',
+				ZE : 'abbr|axis|headers|scope|rowspan|colspan|align|char|charoff|valign|nowrap|bgcolor|width|height',
+				ZD : '[E][S]',
+				U : 'ul|ol|dl|menu|dir',
+				ZC : 'p|Y|div|U|W|table|br|span|bdo|object|applet|img|map|K|N|Q',
+				T : 'h1|h2|h3|h4|h5|h6',
+				ZB : 'X|S|Q',
+				S : 'R|P',
+				ZA : 'a|G|J|M|O|P',
+				R : 'a|H|K|N|O',
+				Q : 'noscript|P',
+				P : 'ins|del|script',
+				O : 'input|select|textarea|label|button',
+				N : 'M|L',
+				M : 'em|strong|dfn|code|q|samp|kbd|var|cite|abbr|acronym',
+				L : 'sub|sup',
+				K : 'J|I',
+				J : 'tt|i|b|u|s|strike',
+				I : 'big|small|font|basefont',
+				H : 'G|F',
+				G : 'br|span|bdo',
+				F : 'object|applet|img|map|iframe',
+				E : 'A|B|C',
+				D : 'accesskey|tabindex|onfocus|onblur',
+				C : 'onclick|ondblclick|onmousedown|onmouseup|onmouseover|onmousemove|onmouseout|onkeypress|onkeydown|onkeyup',
+				B : 'lang|xml:lang|dir',
+				A : 'id|class|style|title'
+			}, 'script[id|charset|type|language|src|defer|xml:space][]' +
+				'style[B|id|type|media|title|xml:space][]' +
+				'object[E|declare|classid|codebase|data|type|codetype|archive|standby|width|height|usemap|name|tabindex|align|border|hspace|vspace][#|param|Y]' +
+				'param[id|name|value|valuetype|type][]' +
+				'p[E|align][#|S]' +
+				'a[E|D|charset|type|name|href|hreflang|rel|rev|shape|coords|target][#|Z]' +
+				'br[A|clear][]' +
+				'span[E][#|S]' +
+				'bdo[A|C|B][#|S]' +
+				'applet[A|codebase|archive|code|object|alt|name|width|height|align|hspace|vspace][#|param|Y]' +
+				'h1[E|align][#|S]' +
+				'img[E|src|alt|name|longdesc|width|height|usemap|ismap|align|border|hspace|vspace][]' +
+				'map[B|C|A|name][X|form|Q|area]' +
+				'h2[E|align][#|S]' +
+				'iframe[A|longdesc|name|src|frameborder|marginwidth|marginheight|scrolling|align|width|height][#|Y]' +
+				'h3[E|align][#|S]' +
+				'tt[E][#|S]' +
+				'i[E][#|S]' +
+				'b[E][#|S]' +
+				'u[E][#|S]' +
+				's[E][#|S]' +
+				'strike[E][#|S]' +
+				'big[E][#|S]' +
+				'small[E][#|S]' +
+				'font[A|B|size|color|face][#|S]' +
+				'basefont[id|size|color|face][]' +
+				'em[E][#|S]' +
+				'strong[E][#|S]' +
+				'dfn[E][#|S]' +
+				'code[E][#|S]' +
+				'q[E|cite][#|S]' +
+				'samp[E][#|S]' +
+				'kbd[E][#|S]' +
+				'var[E][#|S]' +
+				'cite[E][#|S]' +
+				'abbr[E][#|S]' +
+				'acronym[E][#|S]' +
+				'sub[E][#|S]' +
+				'sup[E][#|S]' +
+				'input[E|D|type|name|value|checked|disabled|readonly|size|maxlength|src|alt|usemap|onselect|onchange|accept|align][]' +
+				'select[E|name|size|multiple|disabled|tabindex|onfocus|onblur|onchange][optgroup|option]' +
+				'optgroup[E|disabled|label][option]' +
+				'option[E|selected|disabled|label|value][]' +
+				'textarea[E|D|name|rows|cols|disabled|readonly|onselect|onchange][]' +
+				'label[E|for|accesskey|onfocus|onblur][#|S]' +
+				'button[E|D|name|value|type|disabled][#|p|T|div|U|W|table|G|object|applet|img|map|K|N|Q]' +
+				'h4[E|align][#|S]' +
+				'ins[E|cite|datetime][#|Y]' +
+				'h5[E|align][#|S]' +
+				'del[E|cite|datetime][#|Y]' +
+				'h6[E|align][#|S]' +
+				'div[E|align][#|Y]' +
+				'ul[E|type|compact][li]' +
+				'li[E|type|value][#|Y]' +
+				'ol[E|type|compact|start][li]' +
+				'dl[E|compact][dt|dd]' +
+				'dt[E][#|S]' +
+				'dd[E][#|Y]' +
+				'menu[E|compact][li]' +
+				'dir[E|compact][li]' +
+				'pre[E|width|xml:space][#|ZA]' +
+				'hr[E|align|noshade|size|width][]' +
+				'blockquote[E|cite][#|Y]' +
+				'address[E][#|S|p]' +
+				'center[E][#|Y]' +
+				'noframes[E][#|Y]' +
+				'isindex[A|B|prompt][]' +
+				'fieldset[E][#|legend|Y]' +
+				'legend[E|accesskey|align][#|S]' +
+				'table[E|summary|width|border|frame|rules|cellspacing|cellpadding|align|bgcolor][caption|col|colgroup|thead|tfoot|tbody|tr]' +
+				'caption[E|align][#|S]' +
+				'col[ZG][]' +
+				'colgroup[ZG][col]' +
+				'thead[ZF][tr]' +
+				'tr[ZF|bgcolor][th|td]' +
+				'th[E|ZE][#|Y]' +
+				'form[E|action|method|name|enctype|onsubmit|onreset|accept|accept-charset|target][#|X|R|Q]' +
+				'noscript[E][#|Y]' +
+				'td[E|ZE][#|Y]' +
+				'tfoot[ZF][tr]' +
+				'tbody[ZF][tr]' +
+				'area[E|D|shape|coords|href|nohref|alt|target][]' +
+				'base[id|href|target][]' +
+				'body[E|onload|onunload|background|bgcolor|text|link|vlink|alink][#|Y]'
+			);
+		}
+
+		return html4;
+	};
+
+	/**
+	 * Schema validator class.
+	 *
+	 * @class tinymce.html.Schema
+	 * @example
+	 *  if (tinymce.activeEditor.schema.isValidChild('p', 'span'))
+	 *    alert('span is valid child of p.');
+	 *
+	 *  if (tinymce.activeEditor.schema.getElementRule('p'))
+	 *    alert('P is a valid element.');
+	 *
+	 * @class tinymce.html.Schema
+	 * @version 3.4
+	 */
+
+	/**
+	 * Constructs a new Schema instance.
+	 *
+	 * @constructor
+	 * @method Schema
+	 * @param {Object} settings Name/value settings object.
+	 */
+	tinymce.html.Schema = function(settings) {
+		var self = this, elements = {}, children = {}, patternElements = [], validStyles, schemaItems;
+		var whiteSpaceElementsMap, selfClosingElementsMap, shortEndedElementsMap, boolAttrMap, blockElementsMap, nonEmptyElementsMap, customElementsMap = {};
+
+		// Creates an lookup table map object for the specified option or the default value
+		function createLookupTable(option, default_value, extend) {
+			var value = settings[option];
+
+			if (!value) {
+				// Get cached default map or make it if needed
+				value = mapCache[option];
+
+				if (!value) {
+					value = makeMap(default_value, ' ', makeMap(default_value.toUpperCase(), ' '));
+					value = tinymce.extend(value, extend);
+
+					mapCache[option] = value;
+				}
+			} else {
+				// Create custom map
+				value = makeMap(value, ',', makeMap(value.toUpperCase(), ' '));
+			}
+
+			return value;
+		};
+
+		settings = settings || {};
+		schemaItems = settings.schema == "html5" ? getHTML5() : getHTML4();
+
+		// Allow all elements and attributes if verify_html is set to false
+		if (settings.verify_html === false)
+			settings.valid_elements = '*[*]';
+
+		// Build styles list
+		if (settings.valid_styles) {
+			validStyles = {};
+
+			// Convert styles into a rule list
+			each(settings.valid_styles, function(value, key) {
+				validStyles[key] = tinymce.explode(value);
+			});
+		}
+
+		// Setup map objects
+		whiteSpaceElementsMap = createLookupTable('whitespace_elements', 'pre script noscript style textarea');
+		selfClosingElementsMap = createLookupTable('self_closing_elements', 'colgroup dd dt li option p td tfoot th thead tr');
+		shortEndedElementsMap = createLookupTable('short_ended_elements', 'area base basefont br col frame hr img input isindex link meta param embed source wbr');
+		boolAttrMap = createLookupTable('boolean_attributes', 'checked compact declare defer disabled ismap multiple nohref noresize noshade nowrap readonly selected autoplay loop controls');
+		nonEmptyElementsMap = createLookupTable('non_empty_elements', 'td th iframe video audio object', shortEndedElementsMap);
+		textBlockElementsMap = createLookupTable('text_block_elements', 'h1 h2 h3 h4 h5 h6 p div address pre form ' +
+						'blockquote center dir fieldset header footer article section hgroup aside nav figure');
+		blockElementsMap = createLookupTable('block_elements', 'hr table tbody thead tfoot ' +
+						'th tr td li ol ul caption dl dt dd noscript menu isindex samp option datalist select optgroup', textBlockElementsMap);
+
+		// Converts a wildcard expression string to a regexp for example *a will become /.*a/.
+		function patternToRegExp(str) {
+			return new RegExp('^' + str.replace(/([?+*])/g, '.$1') + '$');
+		};
+
+		// Parses the specified valid_elements string and adds to the current rules
+		// This function is a bit hard to read since it's heavily optimized for speed
+		function addValidElements(valid_elements) {
+			var ei, el, ai, al, yl, matches, element, attr, attrData, elementName, attrName, attrType, attributes, attributesOrder,
+				prefix, outputName, globalAttributes, globalAttributesOrder, transElement, key, childKey, value,
+				elementRuleRegExp = /^([#+\-])?([^\[\/]+)(?:\/([^\[]+))?(?:\[([^\]]+)\])?$/,
+				attrRuleRegExp = /^([!\-])?(\w+::\w+|[^=:<]+)?(?:([=:<])(.*))?$/,
+				hasPatternsRegExp = /[*?+]/;
+
+			if (valid_elements) {
+				// Split valid elements into an array with rules
+				valid_elements = split(valid_elements);
+
+				if (elements['@']) {
+					globalAttributes = elements['@'].attributes;
+					globalAttributesOrder = elements['@'].attributesOrder;
+				}
+
+				// Loop all rules
+				for (ei = 0, el = valid_elements.length; ei < el; ei++) {
+					// Parse element rule
+					matches = elementRuleRegExp.exec(valid_elements[ei]);
+					if (matches) {
+						// Setup local names for matches
+						prefix = matches[1];
+						elementName = matches[2];
+						outputName = matches[3];
+						attrData = matches[4];
+
+						// Create new attributes and attributesOrder
+						attributes = {};
+						attributesOrder = [];
+
+						// Create the new element
+						element = {
+							attributes : attributes,
+							attributesOrder : attributesOrder
+						};
+
+						// Padd empty elements prefix
+						if (prefix === '#')
+							element.paddEmpty = true;
+
+						// Remove empty elements prefix
+						if (prefix === '-')
+							element.removeEmpty = true;
+
+						// Copy attributes from global rule into current rule
+						if (globalAttributes) {
+							for (key in globalAttributes)
+								attributes[key] = globalAttributes[key];
+
+							attributesOrder.push.apply(attributesOrder, globalAttributesOrder);
+						}
+
+						// Attributes defined
+						if (attrData) {
+							attrData = split(attrData, '|');
+							for (ai = 0, al = attrData.length; ai < al; ai++) {
+								matches = attrRuleRegExp.exec(attrData[ai]);
+								if (matches) {
+									attr = {};
+									attrType = matches[1];
+									attrName = matches[2].replace(/::/g, ':');
+									prefix = matches[3];
+									value = matches[4];
+
+									// Required
+									if (attrType === '!') {
+										element.attributesRequired = element.attributesRequired || [];
+										element.attributesRequired.push(attrName);
+										attr.required = true;
+									}
+
+									// Denied from global
+									if (attrType === '-') {
+										delete attributes[attrName];
+										attributesOrder.splice(tinymce.inArray(attributesOrder, attrName), 1);
+										continue;
+									}
+
+									// Default value
+									if (prefix) {
+										// Default value
+										if (prefix === '=') {
+											element.attributesDefault = element.attributesDefault || [];
+											element.attributesDefault.push({name: attrName, value: value});
+											attr.defaultValue = value;
+										}
+
+										// Forced value
+										if (prefix === ':') {
+											element.attributesForced = element.attributesForced || [];
+											element.attributesForced.push({name: attrName, value: value});
+											attr.forcedValue = value;
+										}
+
+										// Required values
+										if (prefix === '<')
+											attr.validValues = makeMap(value, '?');
+									}
+
+									// Check for attribute patterns
+									if (hasPatternsRegExp.test(attrName)) {
+										element.attributePatterns = element.attributePatterns || [];
+										attr.pattern = patternToRegExp(attrName);
+										element.attributePatterns.push(attr);
+									} else {
+										// Add attribute to order list if it doesn't already exist
+										if (!attributes[attrName])
+											attributesOrder.push(attrName);
+
+										attributes[attrName] = attr;
+									}
+								}
+							}
+						}
+
+						// Global rule, store away these for later usage
+						if (!globalAttributes && elementName == '@') {
+							globalAttributes = attributes;
+							globalAttributesOrder = attributesOrder;
+						}
+
+						// Handle substitute elements such as b/strong
+						if (outputName) {
+							element.outputName = elementName;
+							elements[outputName] = element;
+						}
+
+						// Add pattern or exact element
+						if (hasPatternsRegExp.test(elementName)) {
+							element.pattern = patternToRegExp(elementName);
+							patternElements.push(element);
+						} else
+							elements[elementName] = element;
+					}
+				}
+			}
+		};
+
+		function setValidElements(valid_elements) {
+			elements = {};
+			patternElements = [];
+
+			addValidElements(valid_elements);
+
+			each(schemaItems, function(element, name) {
+				children[name] = element.children;
+			});
+		};
+
+		// Adds custom non HTML elements to the schema
+		function addCustomElements(custom_elements) {
+			var customElementRegExp = /^(~)?(.+)$/;
+
+			if (custom_elements) {
+				each(split(custom_elements), function(rule) {
+					var matches = customElementRegExp.exec(rule),
+						inline = matches[1] === '~',
+						cloneName = inline ? 'span' : 'div',
+						name = matches[2];
+
+					children[name] = children[cloneName];
+					customElementsMap[name] = cloneName;
+
+					// If it's not marked as inline then add it to valid block elements
+					if (!inline) {
+						blockElementsMap[name.toUpperCase()] = {};
+						blockElementsMap[name] = {};
+					}
+
+					// Add elements clone if needed
+					if (!elements[name]) {
+						elements[name] = elements[cloneName];
+					}
+
+					// Add custom elements at span/div positions
+					each(children, function(element, child) {
+						if (element[cloneName])
+							element[name] = element[cloneName];
+					});
+				});
+			}
+		};
+
+		// Adds valid children to the schema object
+		function addValidChildren(valid_children) {
+			var childRuleRegExp = /^([+\-]?)(\w+)\[([^\]]+)\]$/;
+
+			if (valid_children) {
+				each(split(valid_children), function(rule) {
+					var matches = childRuleRegExp.exec(rule), parent, prefix;
+
+					if (matches) {
+						prefix = matches[1];
+
+						// Add/remove items from default
+						if (prefix)
+							parent = children[matches[2]];
+						else
+							parent = children[matches[2]] = {'#comment' : {}};
+
+						parent = children[matches[2]];
+
+						each(split(matches[3], '|'), function(child) {
+							if (prefix === '-')
+								delete parent[child];
+							else
+								parent[child] = {};
+						});
+					}
+				});
+			}
+		};
+
+		function getElementRule(name) {
+			var element = elements[name], i;
+
+			// Exact match found
+			if (element)
+				return element;
+
+			// No exact match then try the patterns
+			i = patternElements.length;
+			while (i--) {
+				element = patternElements[i];
+
+				if (element.pattern.test(name))
+					return element;
+			}
+		};
+
+		if (!settings.valid_elements) {
+			// No valid elements defined then clone the elements from the schema spec
+			each(schemaItems, function(element, name) {
+				elements[name] = {
+					attributes : element.attributes,
+					attributesOrder : element.attributesOrder
+				};
+
+				children[name] = element.children;
+			});
+
+			// Switch these on HTML4
+			if (settings.schema != "html5") {
+				each(split('strong/b,em/i'), function(item) {
+					item = split(item, '/');
+					elements[item[1]].outputName = item[0];
+				});
+			}
+
+			// Add default alt attribute for images
+			elements.img.attributesDefault = [{name: 'alt', value: ''}];
+
+			// Remove these if they are empty by default
+			each(split('ol,ul,sub,sup,blockquote,span,font,a,table,tbody,tr,strong,em,b,i'), function(name) {
+				if (elements[name]) {
+					elements[name].removeEmpty = true;
+				}
+			});
+
+			// Padd these by default
+			each(split('p,h1,h2,h3,h4,h5,h6,th,td,pre,div,address,caption'), function(name) {
+				elements[name].paddEmpty = true;
+			});
+		} else
+			setValidElements(settings.valid_elements);
+
+		addCustomElements(settings.custom_elements);
+		addValidChildren(settings.valid_children);
+		addValidElements(settings.extended_valid_elements);
+
+		// Todo: Remove this when we fix list handling to be valid
+		addValidChildren('+ol[ul|ol],+ul[ul|ol]');
+
+		// Delete invalid elements
+		if (settings.invalid_elements) {
+			tinymce.each(tinymce.explode(settings.invalid_elements), function(item) {
+				if (elements[item])
+					delete elements[item];
+			});
+		}
+
+		// If the user didn't allow span only allow internal spans
+		if (!getElementRule('span'))
+			addValidElements('span[!data-mce-type|*]');
+
+		/**
+		 * Name/value map object with valid parents and children to those parents.
+		 *
+		 * @example
+		 * children = {
+		 *    div:{p:{}, h1:{}}
+		 * };
+		 * @field children
+		 * @type {Object}
+		 */
+		self.children = children;
+
+		/**
+		 * Name/value map object with valid styles for each element.
+		 *
+		 * @field styles
+		 * @type {Object}
+		 */
+		self.styles = validStyles;
+
+		/**
+		 * Returns a map with boolean attributes.
+		 *
+		 * @method getBoolAttrs
+		 * @return {Object} Name/value lookup map for boolean attributes.
+		 */
+		self.getBoolAttrs = function() {
+			return boolAttrMap;
+		};
+
+		/**
+		 * Returns a map with block elements.
+		 *
+		 * @method getBlockElements
+		 * @return {Object} Name/value lookup map for block elements.
+		 */
+		self.getBlockElements = function() {
+			return blockElementsMap;
+		};
+
+		/**
+		 * Returns a map with text block elements. Such as: p,h1-h6,div,address
+		 *
+		 * @method getTextBlockElements
+		 * @return {Object} Name/value lookup map for block elements.
+		 */
+		self.getTextBlockElements = function() {
+			return textBlockElementsMap;
+		};
+
+		/**
+		 * Returns a map with short ended elements such as BR or IMG.
+		 *
+		 * @method getShortEndedElements
+		 * @return {Object} Name/value lookup map for short ended elements.
+		 */
+		self.getShortEndedElements = function() {
+			return shortEndedElementsMap;
+		};
+
+		/**
+		 * Returns a map with self closing tags such as <li>.
+		 *
+		 * @method getSelfClosingElements
+		 * @return {Object} Name/value lookup map for self closing tags elements.
+		 */
+		self.getSelfClosingElements = function() {
+			return selfClosingElementsMap;
+		};
+
+		/**
+		 * Returns a map with elements that should be treated as contents regardless if it has text
+		 * content in them or not such as TD, VIDEO or IMG.
+		 *
+		 * @method getNonEmptyElements
+		 * @return {Object} Name/value lookup map for non empty elements.
+		 */
+		self.getNonEmptyElements = function() {
+			return nonEmptyElementsMap;
+		};
+
+		/**
+		 * Returns a map with elements where white space is to be preserved like PRE or SCRIPT.
+		 *
+		 * @method getWhiteSpaceElements
+		 * @return {Object} Name/value lookup map for white space elements.
+		 */
+		self.getWhiteSpaceElements = function() {
+			return whiteSpaceElementsMap;
+		};
+
+		/**
+		 * Returns true/false if the specified element and it's child is valid or not
+		 * according to the schema.
+		 *
+		 * @method isValidChild
+		 * @param {String} name Element name to check for.
+		 * @param {String} child Element child to verify.
+		 * @return {Boolean} True/false if the element is a valid child of the specified parent.
+		 */
+		self.isValidChild = function(name, child) {
+			var parent = children[name];
+
+			return !!(parent && parent[child]);
+		};
+
+		/**
+		 * Returns true/false if the specified element name and optional attribute is
+		 * valid according to the schema.
+		 *
+		 * @method isValid
+		 * @param {String} name Name of element to check.
+		 * @param {String} attr Optional attribute name to check for.
+		 * @return {Boolean} True/false if the element and attribute is valid.
+		 */
+		self.isValid = function(name, attr) {
+			var attrPatterns, i, rule = getElementRule(name);
+
+			// Check if it's a valid element
+			if (rule) {
+				if (attr) {
+					// Check if attribute name exists
+					if (rule.attributes[attr]) {
+						return true;
+					}
+
+					// Check if attribute matches a regexp pattern
+					attrPatterns = rule.attributePatterns;
+					if (attrPatterns) {
+						i = attrPatterns.length;
+						while (i--) {
+							if (attrPatterns[i].pattern.test(name)) {
+								return true;
+							}
+						}
+					}
+				} else {
+					return true;
+				}
+			}
+
+			// No match
+			return false;
+		};
+
+		/**
+		 * Returns true/false if the specified element is valid or not
+		 * according to the schema.
+		 *
+		 * @method getElementRule
+		 * @param {String} name Element name to check for.
+		 * @return {Object} Element object or undefined if the element isn't valid.
+		 */
+		self.getElementRule = getElementRule;
+
+		/**
+		 * Returns an map object of all custom elements.
+		 *
+		 * @method getCustomElements
+		 * @return {Object} Name/value map object of all custom elements.
+		 */
+		self.getCustomElements = function() {
+			return customElementsMap;
+		};
+
+		/**
+		 * Parses a valid elements string and adds it to the schema. The valid elements format is for example "element[attr=default|otherattr]".
+		 * Existing rules will be replaced with the ones specified, so this extends the schema.
+		 *
+		 * @method addValidElements
+		 * @param {String} valid_elements String in the valid elements format to be parsed.
+		 */
+		self.addValidElements = addValidElements;
+
+		/**
+		 * Parses a valid elements string and sets it to the schema. The valid elements format is for example "element[attr=default|otherattr]".
+		 * Existing rules will be replaced with the ones specified, so this extends the schema.
+		 *
+		 * @method setValidElements
+		 * @param {String} valid_elements String in the valid elements format to be parsed.
+		 */
+		self.setValidElements = setValidElements;
+
+		/**
+		 * Adds custom non HTML elements to the schema.
+		 *
+		 * @method addCustomElements
+		 * @param {String} custom_elements Comma separated list of custom elements to add.
+		 */
+		self.addCustomElements = addCustomElements;
+
+		/**
+		 * Parses a valid children string and adds them to the schema structure. The valid children format is for example: "element[child1|child2]".
+		 *
+		 * @method addValidChildren
+		 * @param {String} valid_children Valid children elements string to parse
+		 */
+		self.addValidChildren = addValidChildren;
+
+		self.elements = elements;
+	};
+})(tinymce);