/**
 * @license Copyright (c) 2003-2013, CKSource - Frederico Knabben. All rights reserved.
 * For licensing, see LICENSE.html or http://ckeditor.com/license
 */

/**
 * @fileOverview Defines the {@link CKEDITOR.dtd} object, which holds the DTD
 *		mapping for XHTML 1.0 Transitional. This file was automatically
 *		generated from the file: xhtml1-transitional.dtd.
 */

/**
 * Holds and object representation of the HTML DTD to be used by the
 * editor in its internal operations.
 *
 * Each element in the DTD is represented by a property in this object. Each
 * property contains the list of elements that can be contained by the element.
 * Text is represented by the `#` property.
 *
 * Several special grouping properties are also available. Their names start
 * with the `$` character.
 *
 *		// Check if <div> can be contained in a <p> element.
 *		alert( !!CKEDITOR.dtd[ 'p' ][ 'div' ] ); // false
 *
 *		// Check if <p> can be contained in a <div> element.
 *		alert( !!CKEDITOR.dtd[ 'div' ][ 'p' ] ); // true
 *
 *		// Check if <p> is a block element.
 *		alert( !!CKEDITOR.dtd.$block[ 'p' ] ); // true
 *
 * @class CKEDITOR.dtd
 * @singleton
 */
CKEDITOR.dtd = (function() {
	'use strict';

	var X = CKEDITOR.tools.extend,
		// Subtraction rest of sets, from the first set.
		Y = function( source, removed ) {
			var substracted = CKEDITOR.tools.clone( source );
			for ( var i = 1; i < arguments.length; i++ ) {
				removed = arguments[ i ];
				for( var name in removed )
					delete substracted[ name ];
			}
			return substracted;
		};

	// Phrasing elements.
	// P = { a:1,em:1,strong:1,small:1,abbr:1,dfn:1,i:1,b:1,s:1,u:1,code:1,'var':1,samp:1,kbd:1,sup:1,sub:1,q:1,cite:1,span:1,bdo:1,bdi:1,br:1,wbr:1,ins:1,del:1,img:1,embed:1,object:1,iframe:1,map:1,area:1,script:1,noscript:1,ruby:1,video:1,audio:1,input:1,textarea:1,select:1,button:1,label:1,output:1,keygen:1,progress:1,command:1,canvas:1,time:1,meter:1,detalist:1 },

	// Flow elements.
	// F = { a:1,p:1,hr:1,pre:1,ul:1,ol:1,dl:1,div:1,h1:1,h2:1,h3:1,h4:1,h5:1,h6:1,hgroup:1,address:1,blockquote:1,ins:1,del:1,object:1,map:1,noscript:1,section:1,nav:1,article:1,aside:1,header:1,footer:1,video:1,audio:1,figure:1,table:1,form:1,fieldset:1,menu:1,canvas:1,details:1 },

	// Text can be everywhere.
	// X( P, T );
	// Flow elements set consists of phrasing elements set.
	// X( F, P );

	var P = {}, F = {},
		// Intersection of flow elements set and phrasing elements set.
		PF = { a:1,abbr:1,area:1,audio:1,b:1,bdi:1,bdo:1,br:1,button:1,canvas:1,cite:1,code:1,command:1,datalist:1,del:1,dfn:1,em:1,embed:1,i:1,iframe:1,img:1,input:1,ins:1,kbd:1,keygen:1,label:1,map:1,mark:1,meter:1,noscript:1,object:1,output:1,progress:1,q:1,ruby:1,s:1,samp:1,script:1,select:1,small:1,span:1,strong:1,sub:1,sup:1,textarea:1,time:1,u:1,'var':1,video:1,wbr:1 },
		// F - PF (Flow Only).
		FO = { address:1,article:1,aside:1,blockquote:1,details:1,div:1,dl:1,fieldset:1,figure:1,footer:1,form:1,h1:1,h2:1,h3:1,h4:1,h5:1,h6:1,header:1,hgroup:1,hr:1,menu:1,nav:1,ol:1,p:1,pre:1,section:1,table:1,ul:1 },
		// Metadata elements.
		M = { command:1,link:1,meta:1,noscript:1,script:1,style:1 },
		// Empty.
		E = {},
		// Text.
		T = { '#':1 },

		// Deprecated phrasing elements.
		DP = { acronym:1,applet:1,basefont:1,big:1,font:1,isindex:1,strike:1,style:1,tt:1 }, // TODO remove "style".
		// Deprecated flow only elements.
		DFO = { center:1,dir:1,noframes:1 };

	// Phrasing elements := PF + T + DP
	X( P, PF, T, DP );
	// Flow elements := FO + P + DFO
	X( F, FO, P, DFO );

	var dtd = {
		a: Y( P, { a:1,button:1 } ), // Treat as normal inline element (not a transparent one).
		abbr: P,
		address: F,
		area: E,
		article: X( { style:1 }, F ),
		aside: X( { style:1 }, F ),
		audio: X( { source:1,track:1 }, F ),
		b: P,
		base: E,
		bdi: P,
		bdo: P,
		blockquote: F,
		body: F,
		br: E,
		button: Y( P, { a:1,button:1 } ),
		canvas: P, // Treat as normal inline element (not a transparent one).
		caption: F,
		cite: P,
		code: P,
		col: E,
		colgroup: { col:1 },
		command: E,
		datalist: X( { option:1 }, P ),
		dd: F,
		del: P, // Treat as normal inline element (not a transparent one).
		details: X( { summary:1 }, F ),
		dfn: P,
		div: X( { style:1 }, F ),
		dl: { dt:1,dd:1 },
		dt: F,
		em: P,
		embed: E,
		fieldset: X( { legend:1 }, F ),
		figcaption: F,
		figure: X( { figcaption:1 }, F ),
		footer: F,
		form: F,
		h1: P,
		h2: P,
		h3: P,
		h4: P,
		h5: P,
		h6: P,
		head: X( { title:1,base:1 }, M ),
		header: F,
		hgroup: { h1:1,h2:1,h3:1,h4:1,h5:1,h6:1 },
		hr: E,
		html: X( { head:1,body:1 }, F, M ), // Head and body are optional...
		i: P,
		iframe: T,
		img: E,
		input: E,
		ins: P, // Treat as normal inline element (not a transparent one).
		kbd: P,
		keygen: E,
		label: P,
		legend: P,
		li: F,
		link: E,
		map: F,
		mark: P, // Treat as normal inline element (not a transparent one).
		menu: X( { li:1 }, F ),
		meta: E,
		meter: Y( P, { meter:1 } ),
		nav: F,
		noscript: X( { link:1,meta:1,style:1 }, P ), // Treat as normal inline element (not a transparent one).
		object: X( { param:1 }, P ), // Treat as normal inline element (not a transparent one).
		ol: { li:1 },
		optgroup: { option:1 },
		option: T,
		output: P,
		p: P,
		param: E,
		pre: P,
		progress: Y( P, { progress:1 } ),
		q: P,
		rp: P,
		rt: P,
		ruby: X( { rp:1,rt:1 }, P ),
		s: P,
		samp: P,
		script: T,
		section: X( { style:1 }, F ),
		select: { optgroup:1,option:1 },
		small: P,
		source: E,
		span: P,
		strong: P,
		style: T,
		sub: P,
		summary: P,
		sup: P,
		table: { caption:1,colgroup:1,thead:1,tfoot:1,tbody:1,tr:1 },
		tbody: { tr:1 },
		td: F,
		textarea: T,
		tfoot: { tr:1 },
		th: F,
		thead: { tr:1 },
		time: Y( P, { time:1 } ),
		title: T,
		tr: { th:1,td:1 },
		track: E,
		u: P,
		ul: { li:1 },
		'var': P,
		video: X( { source:1,track:1 }, F ),
		wbr: E,

		// Deprecated tags.
		acronym: P,
		applet: X( { param:1 }, F ),
		basefont: E,
		big: P,
		center: F,
		dialog: E,
		dir: { li:1 },
		font: P,
		isindex: E,
		noframes: F,
		strike: P,
		tt: P
	};

	X( dtd, {
		/**
		 * List of block elements, like `<p>` or `<div>`.
		 */
		$block: X( { audio:1,dd:1,dt:1,li:1,video:1 }, FO, DFO ),

		/**
		 * List of elements that contains other blocks, in which block-level operations should be limited,
		 * this property is not intended to be checked directly, use {@link CKEDITOR.dom.elementPath#blockLimit} instead.
		 *
		 * Some examples of editor behaviors that are impacted by block limits:
		 *
		 * * Enter key never split a block-limit element;
		 * * Style application is constraint by the block limit of the current selection.
		 * * Pasted html will be inserted into the block limit of the current selection.
		 *
		 * **Note:** As an exception `<li>` is not considered as a block limit, as it's generally used as a text block.
		 */
		$blockLimit: { article:1,aside:1,audio:1,body:1,caption:1,details:1,dir:1,div:1,dl:1,fieldset:1,figure:1,footer:1,form:1,header:1,hgroup:1,menu:1,nav:1,ol:1,section:1,table:1,td:1,th:1,tr:1,ul:1,video:1 },

		/**
		 * List of elements that contain character data.
		 */
		$cdata: { script:1,style:1 },

		/**
		 * List of elements that are accepted as inline editing hosts.
		 */
		$editable: { address:1,article:1,aside:1,blockquote:1,body:1,details:1,div:1,fieldset:1,footer:1,form:1,h1:1,h2:1,h3:1,h4:1,h5:1,h6:1,header:1,hgroup:1,nav:1,p:1,pre:1,section:1 },

		/**
		 * List of empty (self-closing) elements, like `<br>` or `<img>`.
		 */
		$empty: { area:1,base:1,basefont:1,br:1,col:1,command:1,dialog:1,embed:1,hr:1,img:1,input:1,isindex:1,keygen:1,link:1,meta:1,param:1,source:1,track:1,wbr:1 },

		/**
		 * List of inline (`<span>` like) elements.
		 */
		$inline: P,

		/**
		 * List of list root elements.
		 */
		$list: { dl:1,ol:1,ul:1 },

		/**
		 * List of list item elements, like `<li>` or `<dd>`.
		 */
		$listItem: { dd:1,dt:1,li:1 },

		/**
		 * List of elements which may live outside body.
		 */
		$nonBodyContent: X( { body:1,head:1,html:1 }, dtd.head ),

		/**
		 * Elements that accept text nodes, but are not possible to edit into the browser.
		 */
		$nonEditable: { applet:1,audio:1,button:1,embed:1,iframe:1,map:1,object:1,option:1,param:1,script:1,textarea:1,video:1 },

		/**
		 * Elements that are considered objects, therefore selected as a whole in the editor.
		 */
		$object: { applet:1,audio:1,button:1,hr:1,iframe:1,img:1,input:1,object:1,select:1,table:1,textarea:1,video:1 },

		/**
		 * List of elements that can be ignored if empty, like `<b>` or `<span>`.
		 */
		$removeEmpty: { abbr:1,acronym:1,b:1,bdi:1,bdo:1,big:1,cite:1,code:1,del:1,dfn:1,em:1,font:1,i:1,ins:1,label:1,kbd:1,mark:1,meter:1,output:1,q:1,ruby:1,s:1,samp:1,small:1,span:1,strike:1,strong:1,sub:1,sup:1,time:1,tt:1,u:1,'var':1 },

		/**
		 * List of elements that have tabindex set to zero by default.
		 */
		$tabIndex: { a:1,area:1,button:1,input:1,object:1,select:1,textarea:1 },

		/**
		 * List of elements used inside the `<table>` element, like `<tbody>` or `<td>`.
		 */
		$tableContent: { caption:1,col:1,colgroup:1,tbody:1,td:1,tfoot:1,th:1,thead:1,tr:1 },

		/**
		 * List of "transparent" elements. See [W3C's definition of "transparent" element](http://dev.w3.org/html5/markup/terminology.html#transparent).
		 */
		$transparent: { a:1,audio:1,canvas:1,del:1,ins:1,map:1,noscript:1,object:1,video:1 },

		/**
		 * List of elements that are not to exist standalone that must live under it's parent element.
		 */
		$intermediate: { caption:1,colgroup:1,dd:1,dt:1,figcaption:1,legend:1,li:1,optgroup:1,option:1,rp:1,rt:1,summary:1,tbody:1,td:1,tfoot:1,th:1,thead:1,tr:1 }
	} );

	return dtd;
})();

// PACKAGER_RENAME( CKEDITOR.dtd )
