text: /*
  Copyright (c) 2003-2013, CKSource - Frederico Knabben. All rights reserved.
  For licensing, see LICENSE.html or http://ckeditor.com/license
  */
  
  CKEDITOR.plugins.add( 'styles',
  {
  	requires : [ 'selection' ],
  	init : function( editor )
  	{
  		// This doesn't look like correct, but it's the safest way to proper
  		// pass the disableReadonlyStyling configuration to the style system
  		// without having to change any method signature in the API. (#6103)
  		editor.on( 'contentDom', function()
  			{
  				editor.document.setCustomData( 'cke_includeReadonly', !editor.config.disableReadonlyStyling );
  			});
  	}
  });
  
  /**
   * Registers a function to be called whenever the selection position changes in the
   * editing area. The current state is passed to the function. The possible
   * states are {@link CKEDITOR.TRISTATE_ON} and {@link CKEDITOR.TRISTATE_OFF}.
   * @param {CKEDITOR.style} style The style to be watched.
   * @param {Function} callback The function to be called.
   * @example
   * // Create a style object for the &lt;b&gt; element.
   * var style = new CKEDITOR.style( { element : 'b' } );
   * var editor = CKEDITOR.instances.editor1;
   * editor.attachStyleStateChange( style, function( state )
   *     {
   *         if ( state == CKEDITOR.TRISTATE_ON )
   *             alert( 'The current state for the B element is ON' );
   *         else
   *             alert( 'The current state for the B element is OFF' );
   *     });
   */
  CKEDITOR.editor.prototype.attachStyleStateChange = function( style, callback )
  {
  	// Try to get the list of attached callbacks.
  	var styleStateChangeCallbacks = this._.styleStateChangeCallbacks;
  
  	// If it doesn't exist, it means this is the first call. So, let's create
  	// all the structure to manage the style checks and the callback calls.
  	if ( !styleStateChangeCallbacks )
  	{
  		// Create the callbacks array.
  		styleStateChangeCallbacks = this._.styleStateChangeCallbacks = [];
  
  		// Attach to the selectionChange event, so we can check the styles at
  		// that point.
  		this.on( 'selectionChange', function( ev )
  			{
  				// Loop throw all registered callbacks.
  				for ( var i = 0 ; i < styleStateChangeCallbacks.length ; i++ )
  				{
  					var callback = styleStateChangeCallbacks[ i ];
  
  					// Check the current state for the style defined for that
  					// callback.
  					var currentState = callback.style.checkActive( ev.data.path ) ? CKEDITOR.TRISTATE_ON : CKEDITOR.TRISTATE_OFF;
  
  					// Call the callback function, passing the current
  					// state to it.
  					callback.fn.call( this, currentState );
  				}
  			});
  	}
  
  	// Save the callback info, so it can be checked on the next occurrence of
  	// selectionChange.
  	styleStateChangeCallbacks.push( { style : style, fn : callback } );
  };
  
  CKEDITOR.STYLE_BLOCK = 1;
  CKEDITOR.STYLE_INLINE = 2;
  CKEDITOR.STYLE_OBJECT = 3;
  
  (function()
  {
  	var blockElements	= { address:1,div:1,h1:1,h2:1,h3:1,h4:1,h5:1,h6:1,p:1,pre:1,section:1,header:1,footer:1,nav:1,article:1,aside:1,figure:1,dialog:1,hgroup:1,time:1,meter:1,menu:1,command:1,keygen:1,output:1,progress:1,details:1,datagrid:1,datalist:1 },
  		objectElements	= { a:1,embed:1,hr:1,img:1,li:1,object:1,ol:1,table:1,td:1,tr:1,th:1,ul:1,dl:1,dt:1,dd:1,form:1,audio:1,video:1 };
  
  	var semicolonFixRegex = /\s*(?:;\s*|$)/,
  		varRegex = /#\((.+?)\)/g;
  
  	var notBookmark = CKEDITOR.dom.walker.bookmark( 0, 1 ),
  		nonWhitespaces = CKEDITOR.dom.walker.whitespaces( 1 );
  
  	CKEDITOR.style = function( styleDefinition, variablesValues )
  	{
  		// Inline style text as attribute should be converted
  		// to styles object.
  		var attrs = styleDefinition.attributes;
  		if ( attrs && attrs.style )
  		{
  			styleDefinition.styles = CKEDITOR.tools.extend( {},
  				styleDefinition.styles, parseStyleText( attrs.style ) );
  			delete attrs.style;
  		}
  
  		if ( variablesValues )
  		{
  			styleDefinition = CKEDITOR.tools.clone( styleDefinition );
  
  			replaceVariables( styleDefinition.attributes, variablesValues );
  			replaceVariables( styleDefinition.styles, variablesValues );
  		}
  
  		var element = this.element = styleDefinition.element ?
  				( typeof styleDefinition.element == 'string' ? styleDefinition.element.toLowerCase() : styleDefinition.element )
  				: '*';
  
  		this.type =
  			blockElements[ element ] ?
  				CKEDITOR.STYLE_BLOCK
  			: objectElements[ element ] ?
  				CKEDITOR.STYLE_OBJECT
  			:
  				CKEDITOR.STYLE_INLINE;
  
  		// If the 'element' property is an object with a set of possible element, it will be applied like an object style: only to existing elements
  		if ( typeof this.element == 'object' )
  			this.type = CKEDITOR.STYLE_OBJECT;
  
  		this._ =
  		{
  			definition : styleDefinition
  		};
  	};
  
  	CKEDITOR.style.prototype =
  	{
  		apply : function( document )
  		{
  			applyStyle.call( this, document, false );
  		},
  
  		remove : function( document )
  		{
  			applyStyle.call( this, document, true );
  		},
  
  		applyToRange : function( range )
  		{
  			return ( this.applyToRange =
  						this.type == CKEDITOR.STYLE_INLINE ?
  							applyInlineStyle
  						: this.type == CKEDITOR.STYLE_BLOCK ?
  							applyBlockStyle
  						: this.type == CKEDITOR.STYLE_OBJECT ?
  							applyObjectStyle
  						: null ).call( this, range );
  		},
  
  		removeFromRange : function( range )
  		{
  			return ( this.removeFromRange =
  						this.type == CKEDITOR.STYLE_INLINE ?
  							removeInlineStyle
  						: this.type == CKEDITOR.STYLE_BLOCK ?
  							removeBlockStyle
  						: this.type == CKEDITOR.STYLE_OBJECT ?
  							removeObjectStyle
  						: null ).call( this, range );
  		},
  
  		applyToObject : function( element )
  		{
  			setupElement( element, this );
  		},
  
  		/**
  		 * Get the style state inside an element path. Returns "true" if the
  		 * element is active in the path.
  		 */
  		checkActive : function( elementPath )
  		{
  			switch ( this.type )
  			{
  				case CKEDITOR.STYLE_BLOCK :
  					return this.checkElementRemovable( elementPath.block || elementPath.blockLimit, true );
  
  				case CKEDITOR.STYLE_OBJECT :
  				case CKEDITOR.STYLE_INLINE :
  
  					var elements = elementPath.elements;
  
  					for ( var i = 0, element ; i < elements.length ; i++ )
  					{
  						element = elements[ i ];
  
  						if ( this.type == CKEDITOR.STYLE_INLINE
  							  && ( element == elementPath.block || element == elementPath.blockLimit ) )
  							continue;
  
  						if( this.type == CKEDITOR.STYLE_OBJECT )
  						{
  							var name = element.getName();
  							if ( !( typeof this.element == 'string' ? name == this.element : name in this.element ) )
  								continue;
  						}
  
  						if ( this.checkElementRemovable( element, true ) )
  							return true;
  					}
  			}
  			return false;
  		},
  
  		/**
  		 * Whether this style can be applied at the element path.
   		 * @param elementPath
  		 */
  		checkApplicable : function( elementPath )
  		{
  			switch ( this.type )
  			{
  				case CKEDITOR.STYLE_INLINE :
  				case CKEDITOR.STYLE_BLOCK :
  					break;
  
  				case CKEDITOR.STYLE_OBJECT :
  					return elementPath.lastElement.getAscendant( this.element, true );
  			}
  
  			return true;
  		},
  
  		// Check if the element matches the current style definition.
  		checkElementMatch : function( element, fullMatch )
  		{
  			var def = this._.definition;
  
  			if ( !element || !def.ignoreReadonly && element.isReadOnly() )
  				return false;
  
  			var attribs,
  				name = element.getName();
  
  			// If the element name is the same as the style name.
  			if ( typeof this.element == 'string' ? name == this.element : name in this.element )
  			{
  				// If no attributes are defined in the element.
  				if ( !fullMatch && !element.hasAttributes() )
  					return true;
  
  				attribs = getAttributesForComparison( def );
  
  				if ( attribs._length )
  				{
  					for ( var attName in attribs )
  					{
  						if ( attName == '_length' )
  							continue;
  
  						var elementAttr = element.getAttribute( attName ) || '';
  
  						// Special treatment for 'style' attribute is required.
  						if ( attName == 'style' ?
  							compareCssText( attribs[ attName ], normalizeCssText( elementAttr, false ) )
  							: attribs[ attName ] == elementAttr  )
  						{
  							if ( !fullMatch )
  								return true;
  						}
  						else if ( fullMatch )
  								return false;
  					}
  					if ( fullMatch )
  						return true;
  				}
  				else
  					return true;
  			}
  
  			return false;
  		},
  
  		// Checks if an element, or any of its attributes, is removable by the
  		// current style definition.
  		checkElementRemovable : function( element, fullMatch )
  		{
  			// Check element matches the style itself.
  			if ( this.checkElementMatch( element, fullMatch ) )
  				return true;
  
  			// Check if the element matches the style overrides.
  			var override = getOverrides( this )[ element.getName() ] ;
  			if ( override )
  			{
  				var attribs, attName;
  
  				// If no attributes have been defined, remove the element.
  				if ( !( attribs = override.attributes ) )
  					return true;
  
  				for ( var i = 0 ; i < attribs.length ; i++ )
  				{
  					attName = attribs[i][0];
  					var actualAttrValue = element.getAttribute( attName );
  					if ( actualAttrValue )
  					{
  						var attValue = attribs[i][1];
  
  						// Remove the attribute if:
  						//    - The override definition value is null;
  						//    - The override definition value is a string that
  						//      matches the attribute value exactly.
  						//    - The override definition value is a regex that
  						//      has matches in the attribute value.
  						if ( attValue === null ||
  								( typeof attValue == 'string' && actualAttrValue == attValue ) ||
  								attValue.test( actualAttrValue ) )
  							return true;
  					}
  				}
  			}
  			return false;
  		},
  
  		// Builds the preview HTML based on the styles definition.
  		buildPreview : function( label )
  		{
  			var styleDefinition = this._.definition,
  				html = [],
  				elementName = styleDefinition.element;
  
  			// Avoid <bdo> in the preview.
  			if ( elementName == 'bdo' )
  				elementName = 'span';
  
  			html = [ '<', elementName ];
  
  			// Assign all defined attributes.
  			var attribs	= styleDefinition.attributes;
  			if ( attribs )
  			{
  				for ( var att in attribs )
  				{
  					html.push( ' ', att, '="', attribs[ att ], '"' );
  				}
  			}
  
  			// Assign the style attribute.
  			var cssStyle = CKEDITOR.style.getStyleText( styleDefinition );
  			if ( cssStyle )
  				html.push( ' style="', cssStyle, '"' );
  
  			html.push( '>', ( label || styleDefinition.name ), '</', elementName, '>' );
  
  			return html.join( '' );
  		}
  	};
  
  	// Build the cssText based on the styles definition.
  	CKEDITOR.style.getStyleText = function( styleDefinition )
  	{
  		// If we have already computed it, just return it.
  		var stylesDef = styleDefinition._ST;
  		if ( stylesDef )
  			return stylesDef;
  
  		stylesDef = styleDefinition.styles;
  
  		// Builds the StyleText.
  		var stylesText = ( styleDefinition.attributes && styleDefinition.attributes[ 'style' ] ) || '',
  				specialStylesText = '';
  
  		if ( stylesText.length )
  			stylesText = stylesText.replace( semicolonFixRegex, ';' );
  
  		for ( var style in stylesDef )
  		{
  			var styleVal = stylesDef[ style ],
  					text = ( style + ':' + styleVal ).replace( semicolonFixRegex, ';' );
  
  			// Some browsers don't support 'inherit' property value, leave them intact. (#5242)
  			if ( styleVal == 'inherit' )
  				specialStylesText += text;
  			else
  				stylesText += text;
  		}
  
  		// Browsers make some changes to the style when applying them. So, here
  		// we normalize it to the browser format.
  		if ( stylesText.length )
  			stylesText = normalizeCssText( stylesText );
  
  		stylesText += specialStylesText;
  
  		// Return it, saving it to the next request.
  		return ( styleDefinition._ST = stylesText );
  	};
  
  	// Gets the parent element which blocks the styling for an element. This
  	// can be done through read-only elements (contenteditable=false) or
  	// elements with the "data-nostyle" attribute.
  	function getUnstylableParent( element )
  	{
  		var unstylable,
  			editable;
  
  		while ( ( element = element.getParent() ) )
  		{
  			if ( element.getName() == 'body' )
  				break;
  
  			if ( element.getAttribute( 'data-nostyle' ) )
  				unstylable = element;
  			else if ( !editable )
  			{
  				var contentEditable = element.getAttribute( 'contentEditable' );
  
  				if ( contentEditable == 'false' )
  					unstylable = element;
  				else if ( contentEditable == 'true' )
  					editable = 1;
  			}
  		}
  
  		return unstylable;
  	}
  
  	function applyInlineStyle( range )
  	{
  		var document = range.document;
  
  		if ( range.collapsed )
  		{
  			// Create the element to be inserted in the DOM.
  			var collapsedElement = getElement( this, document );
  
  			// Insert the empty element into the DOM at the range position.
  			range.insertNode( collapsedElement );
  
  			// Place the selection right inside the empty element.
  			range.moveToPosition( collapsedElement, CKEDITOR.POSITION_BEFORE_END );
  
  			return;
  		}
  
  		var elementName = this.element;
  		var def = this._.definition;
  		var isUnknownElement;
  
  		// Indicates that fully selected read-only elements are to be included in the styling range.
  		var ignoreReadonly = def.ignoreReadonly,
  			includeReadonly = ignoreReadonly || def.includeReadonly;
  
  		// If the read-only inclusion is not available in the definition, try
  		// to get it from the document data.
  		if ( includeReadonly == undefined )
  			includeReadonly = document.getCustomData( 'cke_includeReadonly' );
  
  		// Get the DTD definition for the element. Defaults to "span".
  		var dtd = CKEDITOR.dtd[ elementName ] || ( isUnknownElement = true, CKEDITOR.dtd.span );
  
  		// Expand the range.
  		range.enlarge( CKEDITOR.ENLARGE_ELEMENT, 1 );
  		range.trim();
  
  		// Get the first node to be processed and the last, which concludes the
  		// processing.
  		var boundaryNodes = range.createBookmark(),
  			firstNode = boundaryNodes.startNode,
  			lastNode = boundaryNodes.endNode;
  
  		var currentNode = firstNode;
  
  		var styleRange;
  
  		if ( !ignoreReadonly )
  		{
  			// Check if the boundaries are inside non stylable elements.
  			var firstUnstylable = getUnstylableParent( firstNode ),
  					lastUnstylable = getUnstylableParent( lastNode );
  
  			// If the first element can't be styled, we'll start processing right
  			// after its unstylable root.
  			if ( firstUnstylable )
  				currentNode = firstUnstylable.getNextSourceNode( true );
  
  			// If the last element can't be styled, we'll stop processing on its
  			// unstylable root.
  			if ( lastUnstylable )
  				lastNode = lastUnstylable;
  		}
  
  		// Do nothing if the current node now follows the last node to be processed.
  		if ( currentNode.getPosition( lastNode ) == CKEDITOR.POSITION_FOLLOWING )
  			currentNode = 0;
  
  		while ( currentNode )
  		{
  			var applyStyle = false;
  
  			if ( currentNode.equals( lastNode ) )
  			{
  				currentNode = null;
  				applyStyle = true;
  			}
  			else
  			{
  				var nodeType = currentNode.type;
  				var nodeName = nodeType == CKEDITOR.NODE_ELEMENT ? currentNode.getName() : null;
  				var nodeIsReadonly = nodeName && ( currentNode.getAttribute( 'contentEditable' ) == 'false' );
  				var nodeIsNoStyle = nodeName && currentNode.getAttribute( 'data-nostyle' );
  
  				if ( nodeName && currentNode.data( 'cke-bookmark' ) )
  				{
  					currentNode = currentNode.getNextSourceNode( true );
  					continue;
  				}
  
  				// Check if the current node can be a child of the style element.
  				if ( !nodeName || ( dtd[ nodeName ]
  					&& !nodeIsNoStyle
  					&& ( !nodeIsReadonly || includeReadonly )
  					&& ( currentNode.getPosition( lastNode ) | CKEDITOR.POSITION_PRECEDING | CKEDITOR.POSITION_IDENTICAL | CKEDITOR.POSITION_IS_CONTAINED ) == ( CKEDITOR.POSITION_PRECEDING + CKEDITOR.POSITION_IDENTICAL + CKEDITOR.POSITION_IS_CONTAINED )
  					&& ( !def.childRule || def.childRule( currentNode ) ) ) )
  				{
  					var currentParent = currentNode.getParent();
  
  					// Check if the style element can be a child of the current
  					// node parent or if the element is not defined in the DTD.
  					if ( currentParent
  						&& ( ( currentParent.getDtd() || CKEDITOR.dtd.span )[ elementName ] || isUnknownElement )
  						&& ( !def.parentRule || def.parentRule( currentParent ) ) )
  					{
  						// This node will be part of our range, so if it has not
  						// been started, place its start right before the node.
  						// In the case of an element node, it will be included
  						// only if it is entirely inside the range.
  						if ( !styleRange && ( !nodeName || !CKEDITOR.dtd.$removeEmpty[ nodeName ] || ( currentNode.getPosition( lastNode ) | CKEDITOR.POSITION_PRECEDING | CKEDITOR.POSITION_IDENTICAL | CKEDITOR.POSITION_IS_CONTAINED ) == ( CKEDITOR.POSITION_PRECEDING + CKEDITOR.POSITION_IDENTICAL + CKEDITOR.POSITION_IS_CONTAINED ) ) )
  						{
  							styleRange = new CKEDITOR.dom.range( document );
  							styleRange.setStartBefore( currentNode );
  						}
  
  						// Non element nodes, readonly elements, or empty
  						// elements can be added completely to the range.
  						if ( nodeType == CKEDITOR.NODE_TEXT || nodeIsReadonly || ( nodeType == CKEDITOR.NODE_ELEMENT && !currentNode.getChildCount() ) )
  						{
  							var includedNode = currentNode;
  							var parentNode;
  
  							// This node is about to be included completelly, but,
  							// if this is the last node in its parent, we must also
  							// check if the parent itself can be added completelly
  							// to the range, otherwise apply the style immediately.
  							while ( ( applyStyle = !includedNode.getNext( notBookmark ) )
  								&& ( parentNode = includedNode.getParent(), dtd[ parentNode.getName() ] )
  								&& ( parentNode.getPosition( firstNode ) | CKEDITOR.POSITION_FOLLOWING | CKEDITOR.POSITION_IDENTICAL | CKEDITOR.POSITION_IS_CONTAINED ) == ( CKEDITOR.POSITION_FOLLOWING + CKEDITOR.POSITION_IDENTICAL + CKEDITOR.POSITION_IS_CONTAINED )
  								&& ( !def.childRule || def.childRule( parentNode ) ) )
  							{
  								includedNode = parentNode;
  							}
  
  							styleRange.setEndAfter( includedNode );
  
  						}
  					}
  					else
  						applyStyle = true;
  				}
  				else
  					applyStyle = true;
  
  				// Get the next node to be processed.
  				currentNode = currentNode.getNextSourceNode( nodeIsNoStyle || nodeIsReadonly );
  			}
  
  			// Apply the style if we have something to which apply it.
  			if ( applyStyle && styleRange && !styleRange.collapsed )
  			{
  				// Build the style element, based on the style object definition.
  				var styleNode = getElement( this, document ),
  					styleHasAttrs = styleNode.hasAttributes();
  
  				// Get the element that holds the entire range.
  				var parent = styleRange.getCommonAncestor();
  
  				var removeList = {
  					styles : {},
  					attrs : {},
  					// Styles cannot be removed.
  					blockedStyles : {},
  					// Attrs cannot be removed.
  					blockedAttrs : {}
  				};
  
  				var attName, styleName, value;
  
  				// Loop through the parents, removing the redundant attributes
  				// from the element to be applied.
  				while ( styleNode && parent )
  				{
  					if ( parent.getName() == elementName )
  					{
  						for ( attName in def.attributes )
  						{
  							if ( removeList.blockedAttrs[ attName ] || !( value = parent.getAttribute( styleName ) ) )
  								continue;
  
  							if ( styleNode.getAttribute( attName ) == value )
  								removeList.attrs[ attName ] = 1;
  							else
  								removeList.blockedAttrs[ attName ] = 1;
  						}
  
  						for ( styleName in def.styles )
  						{
  							if ( removeList.blockedStyles[ styleName ] || !( value = parent.getStyle( styleName ) ) )
  								continue;
  
  							if ( styleNode.getStyle( styleName ) == value )
  								removeList.styles[ styleName ] = 1;
  							else
  								removeList.blockedStyles[ styleName ] = 1;
  						}
  					}
  
  					parent = parent.getParent();
  				}
  
  				for ( attName in removeList.attrs )
  					styleNode.removeAttribute( attName );
  
  				for ( styleName in removeList.styles )
  					styleNode.removeStyle( styleName );
  
  				if ( styleHasAttrs && !styleNode.hasAttributes() )
  					styleNode = null;
  
  				if ( styleNode )
  				{
  					// Move the contents of the range to the style element.
  					styleRange.extractContents().appendTo( styleNode );
  
  					// Here we do some cleanup, removing all duplicated
  					// elements from the style element.
  					removeFromInsideElement( this, styleNode );
  
  					// Insert it into the range position (it is collapsed after
  					// extractContents.
  					styleRange.insertNode( styleNode );
  
  					// Let's merge our new style with its neighbors, if possible.
  					styleNode.mergeSiblings();
  
  					// As the style system breaks text nodes constantly, let's normalize
  					// things for performance.
  					// With IE, some paragraphs get broken when calling normalize()
  					// repeatedly. Also, for IE, we must normalize body, not documentElement.
  					// IE is also known for having a "crash effect" with normalize().
  					// We should try to normalize with IE too in some way, somewhere.
  					if ( !CKEDITOR.env.ie )
  						styleNode.$.normalize();
  				}
  				// Style already inherit from parents, left just to clear up any internal overrides. (#5931)
  				else
  				{
  					styleNode = new CKEDITOR.dom.element( 'span' );
  					styleRange.extractContents().appendTo( styleNode );
  					styleRange.insertNode( styleNode );
  					removeFromInsideElement( this, styleNode );
  					styleNode.remove( true );
  				}
  
  				// Style applied, let's release the range, so it gets
  				// re-initialization in the next loop.
  				styleRange = null;
  			}
  		}
  
  		// Remove the bookmark nodes.
  		range.moveToBookmark( boundaryNodes );
  
  		// Minimize the result range to exclude empty text nodes. (#5374)
  		range.shrink( CKEDITOR.SHRINK_TEXT );
  	}
  
  	function removeInlineStyle( range )
  	{
  		/*
  		 * Make sure our range has included all "collpased" parent inline nodes so
  		 * that our operation logic can be simpler.
  		 */
  		range.enlarge( CKEDITOR.ENLARGE_ELEMENT, 1 );
  
  		var bookmark = range.createBookmark(),
  			startNode = bookmark.startNode;
  
  		if ( range.collapsed )
  		{
  
  			var startPath = new CKEDITOR.dom.elementPath( startNode.getParent() ),
  				// The topmost element in elementspatch which we should jump out of.
  				boundaryElement;
  
  
  			for ( var i = 0, element ; i < startPath.elements.length
  					&& ( element = startPath.elements[i] ) ; i++ )
  			{
  				/*
  				 * 1. If it's collaped inside text nodes, try to remove the style from the whole element.
  				 *
  				 * 2. Otherwise if it's collapsed on element boundaries, moving the selection
  				 *  outside the styles instead of removing the whole tag,
  				 *  also make sure other inner styles were well preserverd.(#3309)
  				 */
  				if ( element == startPath.block || element == startPath.blockLimit )
  					break;
  
  				if ( this.checkElementRemovable( element ) )
  				{
  					var isStart;
  
  					if ( range.collapsed && (
  						 range.checkBoundaryOfElement( element, CKEDITOR.END ) ||
  						 ( isStart = range.checkBoundaryOfElement( element, CKEDITOR.START ) ) ) )
  					{
  						boundaryElement = element;
  						boundaryElement.match = isStart ? 'start' : 'end';
  					}
  					else
  					{
  						/*
  						 * Before removing the style node, there may be a sibling to the style node
  						 * that's exactly the same to the one to be removed. To the user, it makes
  						 * no difference that they're separate entities in the DOM tree. So, merge
  						 * them before removal.
  						 */
  						element.mergeSiblings();
  						if ( element.getName() == this.element )
  							removeFromElement( this, element );
  						else
  							removeOverrides( element, getOverrides( this )[ element.getName() ] );
  					}
  				}
  			}
  
  			// Re-create the style tree after/before the boundary element,
  			// the replication start from bookmark start node to define the
  			// new range.
  			if ( boundaryElement )
  			{
  				var clonedElement = startNode;
  				for ( i = 0 ;; i++ )
  				{
  					var newElement = startPath.elements[ i ];
  					if ( newElement.equals( boundaryElement ) )
  						break;
  					// Avoid copying any matched element.
  					else if ( newElement.match )
  						continue;
  					else
  						newElement = newElement.clone();
  					newElement.append( clonedElement );
  					clonedElement = newElement;
  				}
  				clonedElement[ boundaryElement.match == 'start' ?
  							'insertBefore' : 'insertAfter' ]( boundaryElement );
  			}
  		}
  		else
  		{
  			/*
  			 * Now our range isn't collapsed. Lets walk from the start node to the end
  			 * node via DFS and remove the styles one-by-one.
  			 */
  			var endNode = bookmark.endNode,
  				me = this;
  
  			/*
  			 * Find out the style ancestor that needs to be broken down at startNode
  			 * and endNode.
  			 */
  			function breakNodes()
  			{
  				var startPath = new CKEDITOR.dom.elementPath( startNode.getParent() ),
  					endPath = new CKEDITOR.dom.elementPath( endNode.getParent() ),
  					breakStart = null,
  					breakEnd = null;
  				for ( var i = 0 ; i < startPath.elements.length ; i++ )
  				{
  					var element = startPath.elements[ i ];
  
  					if ( element == startPath.block || element == startPath.blockLimit )
  						break;
  
  					if ( me.checkElementRemovable( element ) )
  						breakStart = element;
  				}
  				for ( i = 0 ; i < endPath.elements.length ; i++ )
  				{
  					element = endPath.elements[ i ];
  
  					if ( element == endPath.block || element == endPath.blockLimit )
  						break;
  
  					if ( me.checkElementRemovable( element ) )
  						breakEnd = element;
  				}
  
  				if ( breakEnd )
  					endNode.breakParent( breakEnd );
  				if ( breakStart )
  					startNode.breakParent( breakStart );
  			}
  			breakNodes();
  
  			// Now, do the DFS walk.
  			var currentNode = startNode;
  			while ( !currentNode.equals( endNode ) )
  			{
  				/*
  				 * Need to get the next node first because removeFromElement() can remove
  				 * the current node from DOM tree.
  				 */
  				var nextNode = currentNode.getNextSourceNode();
  				if ( currentNode.type == CKEDITOR.NODE_ELEMENT && this.checkElementRemovable( currentNode ) )
  				{
  					// Remove style from element or overriding element.
  					if ( currentNode.getName() == this.element )
  						removeFromElement( this, currentNode );
  					else
  						removeOverrides( currentNode, getOverrides( this )[ currentNode.getName() ] );
  
  					/*
  					 * removeFromElement() may have merged the next node with something before
  					 * the startNode via mergeSiblings(). In that case, the nextNode would
  					 * contain startNode and we'll have to call breakNodes() again and also
  					 * reassign the nextNode to something after startNode.
  					 */
  					if ( nextNode.type == CKEDITOR.NODE_ELEMENT && nextNode.contains( startNode ) )
  					{
  						breakNodes();
  						nextNode = startNode.getNext();
  					}
  				}
  				currentNode = nextNode;
  			}
  		}
  
  		range.moveToBookmark( bookmark );
  	}
  
  	function applyObjectStyle( range )
  	{
  		var root = range.getCommonAncestor( true, true ),
  			element = root.getAscendant( this.element, true );
  		element && !element.isReadOnly() && setupElement( element, this );
  	}
  
  	function removeObjectStyle( range )
  	{
  		var root = range.getCommonAncestor( true, true ),
  			element = root.getAscendant( this.element, true );
  
  		if ( !element )
  			return;
  
  		var style = this,
  			def = style._.definition,
  			attributes = def.attributes;
  
  		// Remove all defined attributes.
  		if ( attributes )
  		{
  			for ( var att in attributes )
  			{
  				element.removeAttribute( att, attributes[ att ] );
  			}
  		}
  
  		// Assign all defined styles.
  		if ( def.styles )
  		{
  			for ( var i in def.styles )
  			{
  				if ( !def.styles.hasOwnProperty( i ) )
  					continue;
  
  				element.removeStyle( i );
  			}
  		}
  	}
  
  	function applyBlockStyle( range )
  	{
  		// Serializible bookmarks is needed here since
  		// elements may be merged.
  		var bookmark = range.createBookmark( true );
  
  		var iterator = range.createIterator();
  		iterator.enforceRealBlocks = true;
  
  		// make recognize <br /> tag as a separator in ENTER_BR mode (#5121)
  		if ( this._.enterMode )
  			iterator.enlargeBr = ( this._.enterMode != CKEDITOR.ENTER_BR );
  
  		var block;
  		var doc = range.document;
  		var previousPreBlock;
  
  		while ( ( block = iterator.getNextParagraph() ) )		// Only one =
  		{
  			if ( !block.isReadOnly() )
  			{
  				var newBlock = getElement( this, doc, block );
  				replaceBlock( block, newBlock );
  			}
  		}
  
  		range.moveToBookmark( bookmark );
  	}
  
  	function removeBlockStyle( range )
  	{
  		// Serializible bookmarks is needed here since
  		// elements may be merged.
  		var bookmark = range.createBookmark( 1 );
  
  		var iterator = range.createIterator();
  		iterator.enforceRealBlocks = true;
  		iterator.enlargeBr = this._.enterMode != CKEDITOR.ENTER_BR;
  
  		var block;
  		while ( ( block = iterator.getNextParagraph() ) )
  		{
  			if ( this.checkElementRemovable( block ) )
  			{
  				// <pre> get special treatment.
  				if ( block.is( 'pre' ) )
  				{
  					var newBlock = this._.enterMode == CKEDITOR.ENTER_BR ?
  								null : range.document.createElement(
  									this._.enterMode == CKEDITOR.ENTER_P ? 'p' : 'div' );
  
  					newBlock && block.copyAttributes( newBlock );
  					replaceBlock( block, newBlock );
  				}
  				else
  					 removeFromElement( this, block, 1 );
  			}
  		}
  
  		range.moveToBookmark( bookmark );
  	}
  
  	// Replace the original block with new one, with special treatment
  	// for <pre> blocks to make sure content format is well preserved, and merging/splitting adjacent
  	// when necessary.(#3188)
  	function replaceBlock( block, newBlock )
  	{
  		// Block is to be removed, create a temp element to
  		// save contents.
  		var removeBlock = !newBlock;
  		if ( removeBlock )
  		{
  			newBlock = block.getDocument().createElement( 'div' );
  			block.copyAttributes( newBlock );
  		}
  
  		var newBlockIsPre	= newBlock && newBlock.is( 'pre' );
  		var blockIsPre	= block.is( 'pre' );
  
  		var isToPre	= newBlockIsPre && !blockIsPre;
  		var isFromPre	= !newBlockIsPre && blockIsPre;
  
  		if ( isToPre )
  			newBlock = toPre( block, newBlock );
  		else if ( isFromPre )
  			// Split big <pre> into pieces before start to convert.
  			newBlock = fromPres( removeBlock ?
  						[ block.getHtml() ] : splitIntoPres( block ), newBlock );
  		else
  			block.moveChildren( newBlock );
  
  		newBlock.replace( block );
  
  		if ( newBlockIsPre )
  		{
  			// Merge previous <pre> blocks.
  			mergePre( newBlock );
  		}
  		else if ( removeBlock )
  			removeNoAttribsElement( newBlock );
  	}
  
  	/**
  	 * Merge a <pre> block with a previous sibling if available.
  	 */
  	function mergePre( preBlock )
  	{
  		var previousBlock;
  		if ( !( ( previousBlock = preBlock.getPrevious( nonWhitespaces ) )
  				 && previousBlock.is
  				 && previousBlock.is( 'pre') ) )
  			return;
  
  		// Merge the previous <pre> block contents into the current <pre>
  		// block.
  		//
  		// Another thing to be careful here is that currentBlock might contain
  		// a '\n' at the beginning, and previousBlock might contain a '\n'
  		// towards the end. These new lines are not normally displayed but they
  		// become visible after merging.
  		var mergedHtml = replace( previousBlock.getHtml(), /\n$/, '' ) + '\n\n' +
  				replace( preBlock.getHtml(), /^\n/, '' ) ;
  
  		// Krugle: IE normalizes innerHTML from <pre>, breaking whitespaces.
  		if ( CKEDITOR.env.ie )
  			preBlock.$.outerHTML = '<pre>' + mergedHtml + '</pre>';
  		else
  			preBlock.setHtml( mergedHtml );
  
  		previousBlock.remove();
  	}
  
  	/**
  	 * Split into multiple <pre> blocks separated by double line-break.
  	 * @param preBlock
  	 */
  	function splitIntoPres( preBlock )
  	{
  		// Exclude the ones at header OR at tail,
  		// and ignore bookmark content between them.
  		var duoBrRegex = /(\S\s*)\n(?:\s|(<span[^>]+data-cke-bookmark.*?\/span>))*\n(?!$)/gi,
  			blockName = preBlock.getName(),
  			splitedHtml = replace( preBlock.getOuterHtml(),
  				duoBrRegex,
  				function( match, charBefore, bookmark )
  				{
  				  return charBefore + '</pre>' + bookmark + '<pre>';
  				} );
  
  		var pres = [];
  		splitedHtml.replace( /<pre\b.*?>([\s\S]*?)<\/pre>/gi, function( match, preContent ){
  			pres.push( preContent );
  		} );
  		return pres;
  	}
  
  	// Wrapper function of String::replace without considering of head/tail bookmarks nodes.
  	function replace( str, regexp, replacement )
  	{
  		var headBookmark = '',
  			tailBookmark = '';
  
  		str = str.replace( /(^<span[^>]+data-cke-bookmark.*?\/span>)|(<span[^>]+data-cke-bookmark.*?\/span>$)/gi,
  			function( str, m1, m2 ){
  					m1 && ( headBookmark = m1 );
  					m2 && ( tailBookmark = m2 );
  				return '';
  			} );
  		return headBookmark + str.replace( regexp, replacement ) + tailBookmark;
  	}
  
  	/**
  	 * Converting a list of <pre> into blocks with format well preserved.
  	 */
  	function fromPres( preHtmls, newBlock )
  	{
  		var docFrag;
  		if ( preHtmls.length > 1 )
  			docFrag = new CKEDITOR.dom.documentFragment( newBlock.getDocument() );
  
  		for ( var i = 0 ; i < preHtmls.length ; i++ )
  		{
  			var blockHtml = preHtmls[ i ];
  
  			// 1. Trim the first and last line-breaks immediately after and before <pre>,
  			// they're not visible.
  			 blockHtml =  blockHtml.replace( /(\r\n|\r)/g, '\n' ) ;
  			 blockHtml = replace(  blockHtml, /^[ \t]*\n/, '' ) ;
  			 blockHtml = replace(  blockHtml, /\n$/, '' ) ;
  			// 2. Convert spaces or tabs at the beginning or at the end to &nbsp;
  			 blockHtml = replace(  blockHtml, /^[ \t]+|[ \t]+$/g, function( match, offset, s )
  					{
  						if ( match.length == 1 )	// one space, preserve it
  							return '&nbsp;' ;
  						else if ( !offset )		// beginning of block
  							return CKEDITOR.tools.repeat( '&nbsp;', match.length - 1 ) + ' ';
  						else				// end of block
  							return ' ' + CKEDITOR.tools.repeat( '&nbsp;', match.length - 1 );
  					} ) ;
  
  			// 3. Convert \n to <BR>.
  			// 4. Convert contiguous (i.e. non-singular) spaces or tabs to &nbsp;
  			 blockHtml =  blockHtml.replace( /\n/g, '<br>' ) ;
  			 blockHtml =  blockHtml.replace( /[ \t]{2,}/g,
  					function ( match )
  					{
  						return CKEDITOR.tools.repeat( '&nbsp;', match.length - 1 ) + ' ' ;
  					} ) ;
  
  			if ( docFrag )
  			{
  				var newBlockClone = newBlock.clone();
  				newBlockClone.setHtml(  blockHtml );
  				docFrag.append( newBlockClone );
  			}
  			else
  				newBlock.setHtml( blockHtml );
  		}
  
  		return docFrag || newBlock;
  	}
  
  	/**
  	 * Converting from a non-PRE block to a PRE block in formatting operations.
  	 */
  	function toPre( block, newBlock )
  	{
  		var bogus = block.getBogus();
  		bogus && bogus.remove();
  
  		// First trim the block content.
  		var preHtml = block.getHtml();
  
  		// 1. Trim head/tail spaces, they're not visible.
  		preHtml = replace( preHtml, /(?:^[ \t\n\r]+)|(?:[ \t\n\r]+$)/g, '' );
  		// 2. Delete ANSI whitespaces immediately before and after <BR> because
  		//    they are not visible.
  		preHtml = preHtml.replace( /[ \t\r\n]*(<br[^>]*>)[ \t\r\n]*/gi, '$1' );
  		// 3. Compress other ANSI whitespaces since they're only visible as one
  		//    single space previously.
  		// 4. Convert &nbsp; to spaces since &nbsp; is no longer needed in <PRE>.
  		preHtml = preHtml.replace( /([ \t\n\r]+|&nbsp;)/g, ' ' );
  		// 5. Convert any <BR /> to \n. This must not be done earlier because
  		//    the \n would then get compressed.
  		preHtml = preHtml.replace( /<br\b[^>]*>/gi, '\n' );
  
  		// Krugle: IE normalizes innerHTML to <pre>, breaking whitespaces.
  		if ( CKEDITOR.env.ie )
  		{
  			var temp = block.getDocument().createElement( 'div' );
  			temp.append( newBlock );
  			newBlock.$.outerHTML =  '<pre>' + preHtml + '</pre>';
  			newBlock.copyAttributes( temp.getFirst() );
  			newBlock = temp.getFirst().remove();
  		}
  		else
  			newBlock.setHtml( preHtml );
  
  		return newBlock;
  	}
  
  	// Removes a style from an element itself, don't care about its subtree.
  	function removeFromElement( style, element )
  	{
  		var def = style._.definition,
  			attributes = def.attributes,
  			styles = def.styles,
  			overrides = getOverrides( style )[ element.getName() ],
  			// If the style is only about the element itself, we have to remove the element.
  			removeEmpty = CKEDITOR.tools.isEmpty( attributes ) && CKEDITOR.tools.isEmpty( styles );
  
  		// Remove definition attributes/style from the elemnt.
  		for ( var attName in attributes )
  		{
  			// The 'class' element value must match (#1318).
  			if ( ( attName == 'class' || style._.definition.fullMatch )
  				&& element.getAttribute( attName ) != normalizeProperty( attName, attributes[ attName ] ) )
  				continue;
  			removeEmpty = element.hasAttribute( attName );
  			element.removeAttribute( attName );
  		}
  
  		for ( var styleName in styles )
  		{
  			// Full match style insist on having fully equivalence. (#5018)
  			if ( style._.definition.fullMatch
  				&& element.getStyle( styleName ) != normalizeProperty( styleName, styles[ styleName ], true ) )
  				continue;
  
  			removeEmpty = removeEmpty || !!element.getStyle( styleName );
  			element.removeStyle( styleName );
  		}
  
  		// Remove overrides, but don't remove the element if it's a block element
  		removeOverrides( element, overrides, blockElements[ element.getName() ] ) ;
  
  		if ( removeEmpty )
  		{
  			!CKEDITOR.dtd.$block[ element.getName() ] || style._.enterMode == CKEDITOR.ENTER_BR && !element.hasAttributes() ?
  				removeNoAttribsElement( element ) :
  				element.renameNode( style._.enterMode == CKEDITOR.ENTER_P ? 'p' : 'div' );
  		}
  	}
  
  	// Removes a style from inside an element.
  	function removeFromInsideElement( style, element )
  	{
  		var def = style._.definition,
  			attribs = def.attributes,
  			styles = def.styles,
  			overrides = getOverrides( style ),
  			innerElements = element.getElementsByTag( style.element );
  
  		for ( var i = innerElements.count(); --i >= 0 ; )
  			removeFromElement( style,  innerElements.getItem( i ) );
  
  		// Now remove any other element with different name that is
  		// defined to be overriden.
  		for ( var overrideElement in overrides )
  		{
  			if ( overrideElement != style.element )
  			{
  				innerElements = element.getElementsByTag( overrideElement ) ;
  				for ( i = innerElements.count() - 1 ; i >= 0 ; i-- )
  				{
  					var innerElement = innerElements.getItem( i );
  					removeOverrides( innerElement, overrides[ overrideElement ] ) ;
  				}
  			}
  		}
  	}
  
  	/**
  	 *  Remove overriding styles/attributes from the specific element.
  	 *  Note: Remove the element if no attributes remain.
  	 * @param {Object} element
  	 * @param {Object} overrides
  	 * @param {Boolean} Don't remove the element
  	 */
  	function removeOverrides( element, overrides, dontRemove )
  	{
  		var attributes = overrides && overrides.attributes ;
  
  		if ( attributes )
  		{
  			for ( var i = 0 ; i < attributes.length ; i++ )
  			{
  				var attName = attributes[i][0], actualAttrValue ;
  
  				if ( ( actualAttrValue = element.getAttribute( attName ) ) )
  				{
  					var attValue = attributes[i][1] ;
  
  					// Remove the attribute if:
  					//    - The override definition value is null ;
  					//    - The override definition valie is a string that
  					//      matches the attribute value exactly.
  					//    - The override definition value is a regex that
  					//      has matches in the attribute value.
  					if ( attValue === null ||
  							( attValue.test && attValue.test( actualAttrValue ) ) ||
  							( typeof attValue == 'string' && actualAttrValue == attValue ) )
  						element.removeAttribute( attName ) ;
  				}
  			}
  		}
  
  		if ( !dontRemove )
  			removeNoAttribsElement( element );
  	}
  
  	// If the element has no more attributes, remove it.
  	function removeNoAttribsElement( element )
  	{
  		// If no more attributes remained in the element, remove it,
  		// leaving its children.
  		if ( !element.hasAttributes() )
  		{
  			if ( CKEDITOR.dtd.$block[ element.getName() ] )
  			{
  				var previous = element.getPrevious( nonWhitespaces ),
  						next = element.getNext( nonWhitespaces );
  
  				if ( previous && ( previous.type == CKEDITOR.NODE_TEXT || !previous.isBlockBoundary( { br : 1 } ) ) )
  					element.append( 'br', 1 );
  				if ( next && ( next.type == CKEDITOR.NODE_TEXT || !next.isBlockBoundary( { br : 1 } ) ) )
  					element.append( 'br' );
  
  				element.remove( true );
  			}
  			else
  			{
  				// Removing elements may open points where merging is possible,
  				// so let's cache the first and last nodes for later checking.
  				var firstChild = element.getFirst();
  				var lastChild = element.getLast();
  
  				element.remove( true );
  
  				if ( firstChild )
  				{
  					// Check the cached nodes for merging.
  					firstChild.type == CKEDITOR.NODE_ELEMENT && firstChild.mergeSiblings();
  
  					if ( lastChild && !firstChild.equals( lastChild )
  							&& lastChild.type == CKEDITOR.NODE_ELEMENT )
  						lastChild.mergeSiblings();
  				}
  
  			}
  		}
  	}
  
  	function getElement( style, targetDocument, element )
  	{
  		var el,
  			def = style._.definition,
  			elementName = style.element;
  
  		// The "*" element name will always be a span for this function.
  		if ( elementName == '*' )
  			elementName = 'span';
  
  		// Create the element.
  		el = new CKEDITOR.dom.element( elementName, targetDocument );
  
  		// #6226: attributes should be copied before the new ones are applied
  		if ( element )
  			element.copyAttributes( el );
  
  		el = setupElement( el, style );
  
  		// Avoid ID duplication.
  		if ( targetDocument.getCustomData( 'doc_processing_style' ) && el.hasAttribute( 'id' ) )
  			el.removeAttribute( 'id' );
  		else
  			targetDocument.setCustomData( 'doc_processing_style', 1 );
  
  		return el;
  	}
  
  	function setupElement( el, style )
  	{
  		var def = style._.definition,
  			attributes = def.attributes,
  			styles = CKEDITOR.style.getStyleText( def );
  
  		// Assign all defined attributes.
  		if ( attributes )
  		{
  			for ( var att in attributes )
  			{
  				el.setAttribute( att, attributes[ att ] );
  			}
  		}
  
  		// Assign all defined styles.
  		if( styles )
  			el.setAttribute( 'style', styles );
  
  		return el;
  	}
  
  	function replaceVariables( list, variablesValues )
  	{
  		for ( var item in list )
  		{
  			list[ item ] = list[ item ].replace( varRegex, function( match, varName )
  				{
  					return variablesValues[ varName ];
  				});
  		}
  	}
  
  	// Returns an object that can be used for style matching comparison.
  	// Attributes names and values are all lowercased, and the styles get
  	// merged with the style attribute.
  	function getAttributesForComparison( styleDefinition )
  	{
  		// If we have already computed it, just return it.
  		var attribs = styleDefinition._AC;
  		if ( attribs )
  			return attribs;
  
  		attribs = {};
  
  		var length = 0;
  
  		// Loop through all defined attributes.
  		var styleAttribs = styleDefinition.attributes;
  		if ( styleAttribs )
  		{
  			for ( var styleAtt in styleAttribs )
  			{
  				length++;
  				attribs[ styleAtt ] = styleAttribs[ styleAtt ];
  			}
  		}
  
  		// Includes the style definitions.
  		var styleText = CKEDITOR.style.getStyleText( styleDefinition );
  		if ( styleText )
  		{
  			if ( !attribs[ 'style' ] )
  				length++;
  			attribs[ 'style' ] = styleText;
  		}
  
  		// Appends the "length" information to the object.
  		attribs._length = length;
  
  		// Return it, saving it to the next request.
  		return ( styleDefinition._AC = attribs );
  	}
  
  	/**
  	 * Get the the collection used to compare the elements and attributes,
  	 * defined in this style overrides, with other element. All information in
  	 * it is lowercased.
  	 * @param {CKEDITOR.style} style
  	 */
  	function getOverrides( style )
  	{
  		if ( style._.overrides )
  			return style._.overrides;
  
  		var overrides = ( style._.overrides = {} ),
  			definition = style._.definition.overrides;
  
  		if ( definition )
  		{
  			// The override description can be a string, object or array.
  			// Internally, well handle arrays only, so transform it if needed.
  			if ( !CKEDITOR.tools.isArray( definition ) )
  				definition = [ definition ];
  
  			// Loop through all override definitions.
  			for ( var i = 0 ; i < definition.length ; i++ )
  			{
  				var override = definition[i];
  				var elementName;
  				var overrideEl;
  				var attrs;
  
  				// If can be a string with the element name.
  				if ( typeof override == 'string' )
  					elementName = override.toLowerCase();
  				// Or an object.
  				else
  				{
  					elementName = override.element ? override.element.toLowerCase() : style.element;
  					attrs = override.attributes;
  				}
  
  				// We can have more than one override definition for the same
  				// element name, so we attempt to simply append information to
  				// it if it already exists.
  				overrideEl = overrides[ elementName ] || ( overrides[ elementName ] = {} );
  
  				if ( attrs )
  				{
  					// The returning attributes list is an array, because we
  					// could have different override definitions for the same
  					// attribute name.
  					var overrideAttrs = ( overrideEl.attributes = overrideEl.attributes || new Array() );
  					for ( var attName in attrs )
  					{
  						// Each item in the attributes array is also an array,
  						// where [0] is the attribute name and [1] is the
  						// override value.
  						overrideAttrs.push( [ attName.toLowerCase(), attrs[ attName ] ] );
  					}
  				}
  			}
  		}
  
  		return overrides;
  	}
  
  	// Make the comparison of attribute value easier by standardizing it.
  	function normalizeProperty( name, value, isStyle )
  	{
  		var temp = new CKEDITOR.dom.element( 'span' );
  		temp [ isStyle ? 'setStyle' : 'setAttribute' ]( name, value );
  		return temp[ isStyle ? 'getStyle' : 'getAttribute' ]( name );
  	}
  
  	// Make the comparison of style text easier by standardizing it.
  	function normalizeCssText( unparsedCssText, nativeNormalize )
  	{
  		var styleText;
  		if ( nativeNormalize !== false )
  		{
  			// Injects the style in a temporary span object, so the browser parses it,
  			// retrieving its final format.
  			var temp = new CKEDITOR.dom.element( 'span' );
  			temp.setAttribute( 'style', unparsedCssText );
  			styleText = temp.getAttribute( 'style' ) || '';
  		}
  		else
  			styleText = unparsedCssText;
  
  		// Normalize font-family property, ignore quotes and being case insensitive. (#7322)
  		// http://www.w3.org/TR/css3-fonts/#font-family-the-font-family-property
  		styleText = styleText.replace( /(font-family:)(.*?)(?=;|$)/, function ( match, prop, val )
  		{
  			var names = val.split( ',' );
  			for ( var i = 0; i < names.length; i++ )
  				names[ i ] = CKEDITOR.tools.trim( names[ i ].replace( /["']/g, '' ) );
  			return prop + names.join( ',' );
  		});
  
  		// Shrinking white-spaces around colon and semi-colon (#4147).
  		// Compensate tail semi-colon.
  		return styleText.replace( /\s*([;:])\s*/, '$1' )
  							 .replace( /([^\s;])$/, '$1;')
  				 			// Trimming spaces after comma(#4107),
  				 			// remove quotations(#6403),
  				 			// mostly for differences on "font-family".
  							 .replace( /,\s+/g, ',' )
  							 .replace( /\"/g,'' )
  							 .toLowerCase();
  	}
  
  	// Turn inline style text properties into one hash.
  	function parseStyleText( styleText )
  	{
  		var retval = {};
  		styleText
  		   .replace( /&quot;/g, '"' )
  		   .replace( /\s*([^ :;]+)\s*:\s*([^;]+)\s*(?=;|$)/g, function( match, name, value )
  		{
  			retval[ name ] = value;
  		} );
  		return retval;
  	}
  
  	/**
  	 * Compare two bunch of styles, with the speciality that value 'inherit'
  	 * is treated as a wildcard which will match any value.
  	 * @param {Object|String} source
  	 * @param {Object|String} target
  	 */
  	function compareCssText( source, target )
  	{
  		typeof source == 'string' && ( source = parseStyleText( source ) );
  		typeof target == 'string' && ( target = parseStyleText( target ) );
  		for( var name in source )
  		{
  			if ( !( name in target &&
  					( target[ name ] == source[ name ]
  						|| source[ name ] == 'inherit'
  						|| target[ name ] == 'inherit' ) ) )
  			{
  				return false;
  			}
  		}
  		return true;
  	}
  
  	function applyStyle( document, remove )
  	{
  		var selection = document.getSelection(),
  			// Bookmark the range so we can re-select it after processing.
  			bookmarks = selection.createBookmarks( 1 ),
  			ranges = selection.getRanges(),
  			func = remove ? this.removeFromRange : this.applyToRange,
  			range;
  
  		var iterator = ranges.createIterator();
  		while ( ( range = iterator.getNextRange() ) )
  			func.call( this, range );
  
  		if ( bookmarks.length == 1 && bookmarks[ 0 ].collapsed )
  		{
  			selection.selectRanges( ranges );
  			document.getById( bookmarks[ 0 ].startNode ).remove();
  		}
  		else
  			selection.selectBookmarks( bookmarks );
  
  		document.removeCustomData( 'doc_processing_style' );
  	}
  })();
  
  CKEDITOR.styleCommand = function( style )
  {
  	this.style = style;
  };
  
  CKEDITOR.styleCommand.prototype.exec = function( editor )
  {
  	editor.focus();
  
  	var doc = editor.document;
  
  	if ( doc )
  	{
  		if ( this.state == CKEDITOR.TRISTATE_OFF )
  			this.style.apply( doc );
  		else if ( this.state == CKEDITOR.TRISTATE_ON )
  			this.style.remove( doc );
  	}
  
  	return !!doc;
  };
  
  /**
   * Manages styles registration and loading. See also {@link CKEDITOR.config.stylesSet}.
   * @namespace
   * @augments CKEDITOR.resourceManager
   * @constructor
   * @since 3.2
   * @example
   * // The set of styles for the <b>Styles</b> combo
   * CKEDITOR.stylesSet.add( 'default',
   * [
   * 	// Block Styles
   * 	{ name : 'Blue Title'		, element : 'h3', styles : { 'color' : 'Blue' } },
   * 	{ name : 'Red Title'		, element : 'h3', styles : { 'color' : 'Red' } },
   *
   * 	// Inline Styles
   * 	{ name : 'Marker: Yellow'	, element : 'span', styles : { 'background-color' : 'Yellow' } },
   * 	{ name : 'Marker: Green'	, element : 'span', styles : { 'background-color' : 'Lime' } },
   *
   * 	// Object Styles
   * 	{
   * 		name : 'Image on Left',
   * 		element : 'img',
   * 		attributes :
   * 		{
   * 			'style' : 'padding: 5px; margin-right: 5px',
   * 			'border' : '2',
   * 			'align' : 'left'
   * 		}
   * 	}
   * ]);
   */
  CKEDITOR.stylesSet = new CKEDITOR.resourceManager( '', 'stylesSet' );
  
  // Backward compatibility (#5025).
  CKEDITOR.addStylesSet = CKEDITOR.tools.bind( CKEDITOR.stylesSet.add, CKEDITOR.stylesSet );
  CKEDITOR.loadStylesSet = function( name, url, callback )
  	{
  		CKEDITOR.stylesSet.addExternal( name, url, '' );
  		CKEDITOR.stylesSet.load( name, callback );
  	};
  
  
  /**
   * Gets the current styleSet for this instance
   * @param {Function} callback The function to be called with the styles data.
   * @example
   * editor.getStylesSet( function( stylesDefinitions ) {} );
   */
  CKEDITOR.editor.prototype.getStylesSet = function( callback )
  {
  	if ( !this._.stylesDefinitions )
  	{
  		var editor = this,
  			// Respect the backwards compatible definition entry
  			configStyleSet = editor.config.stylesCombo_stylesSet || editor.config.stylesSet || 'default';
  
  		// #5352 Allow to define the styles directly in the config object
  		if ( configStyleSet instanceof Array )
  		{
  			editor._.stylesDefinitions = configStyleSet;
  			callback( configStyleSet );
  			return;
  		}
  
  		var	partsStylesSet = configStyleSet.split( ':' ),
  			styleSetName = partsStylesSet[ 0 ],
  			externalPath = partsStylesSet[ 1 ],
  			pluginPath = CKEDITOR.plugins.registered.styles.path;
  
  		CKEDITOR.stylesSet.addExternal( styleSetName,
  				externalPath ?
  					partsStylesSet.slice( 1 ).join( ':' ) :
  					pluginPath + 'styles/' + styleSetName + '.js', '' );
  
  		CKEDITOR.stylesSet.load( styleSetName, function( stylesSet )
  			{
  				editor._.stylesDefinitions = stylesSet[ styleSetName ];
  				callback( editor._.stylesDefinitions );
  			} ) ;
  	}
  	else
  		callback( this._.stylesDefinitions );
  };
  
  /**
   * Indicates that fully selected read-only elements will be included when
   * applying the style (for inline styles only).
   * @name CKEDITOR.style.includeReadonly
   * @type Boolean
   * @default false
   * @since 3.5
   */
  
   /**
    * Disables inline styling on read-only elements.
    * @name CKEDITOR.config.disableReadonlyStyling
    * @type Boolean
    * @default false
    * @since 3.5
    */
  
  /**
   * The "styles definition set" to use in the editor. They will be used in the
   * styles combo and the Style selector of the div container. <br>
   * The styles may be defined in the page containing the editor, or can be
   * loaded on demand from an external file. In the second case, if this setting
   * contains only a name, the styles definition file will be loaded from the
   * "styles" folder inside the styles plugin folder.
   * Otherwise, this setting has the "name:url" syntax, making it
   * possible to set the URL from which loading the styles file.<br>
   * Previously this setting was available as config.stylesCombo_stylesSet<br>
   * @name CKEDITOR.config.stylesSet
   * @type String|Array
   * @default 'default'
   * @since 3.3
   * @example
   * // Load from the styles' styles folder (mystyles.js file).
   * config.stylesSet = 'mystyles';
   * @example
   * // Load from a relative URL.
   * config.stylesSet = 'mystyles:/editorstyles/styles.js';
   * @example
   * // Load from a full URL.
   * config.stylesSet = 'mystyles:http://www.example.com/editorstyles/styles.js';
   * @example
   * // Load from a list of definitions.
   * config.stylesSet = [
   *  { name : 'Strong Emphasis', element : 'strong' },
   * { name : 'Emphasis', element : 'em' }, ... ];
   */
  