1 files changed, 207 insertions, 0 deletions
diff --git a/core/htmlparser.js b/core/htmlparser.js
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+++ b/core/htmlparser.js
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+/**
+ * @license Copyright (c) 2003-2013, CKSource - Frederico Knabben. All rights reserved.
+ * For licensing, see LICENSE.html or http://ckeditor.com/license
+ */
+
+/**
+ * Provides an "event like" system to parse strings of HTML data.
+ *
+ *		var parser = new CKEDITOR.htmlParser();
+ *		parser.onTagOpen = function( tagName, attributes, selfClosing ) {
+ *			alert( tagName );
+ *		};
+ *		parser.parse( '<p>Some <b>text</b>.</p>' ); // Alerts 'p', 'b'.
+ *
+ * @class
+ * @constructor Creates a htmlParser class instance.
+ */
+CKEDITOR.htmlParser = function() {
+	this._ = {
+		htmlPartsRegex: new RegExp( '<(?:(?:\\/([^>]+)>)|(?:!--([\\S|\\s]*?)-->)|(?:([^\\s>]+)\\s*((?:(?:"[^"]*")|(?:\'[^\']*\')|[^"\'>])*)\\/?>))', 'g' )
+	};
+};
+
+(function() {
+	var attribsRegex = /([\w\-:.]+)(?:(?:\s*=\s*(?:(?:"([^"]*)")|(?:'([^']*)')|([^\s>]+)))|(?=\s|$))/g,
+		emptyAttribs = { checked:1,compact:1,declare:1,defer:1,disabled:1,ismap:1,multiple:1,nohref:1,noresize:1,noshade:1,nowrap:1,readonly:1,selected:1 };
+
+	CKEDITOR.htmlParser.prototype = {
+		/**
+		 * Function to be fired when a tag opener is found. This function
+		 * should be overriden when using this class.
+		 *
+		 *		var parser = new CKEDITOR.htmlParser();
+		 *		parser.onTagOpen = function( tagName, attributes, selfClosing ) {
+		 *			alert( tagName ); // e.g. 'b'
+		 *		} );
+		 *		parser.parse( '<!-- Example --><b>Hello</b>' );
+		 *
+		 * @param {String} tagName The tag name. The name is guarantted to be lowercased.
+		 * @param {Object} attributes An object containing all tag attributes. Each
+		 * property in this object represent and attribute name and its value is the attribute value.
+		 * @param {Boolean} selfClosing `true` if the tag closes itself, false if the tag doesn't.
+		 */
+		onTagOpen: function() {},
+
+		/**
+		 * Function to be fired when a tag closer is found. This function
+		 * should be overriden when using this class.
+		 *
+		 *		var parser = new CKEDITOR.htmlParser();
+		 *		parser.onTagClose = function( tagName ) {
+		 *			alert( tagName ); // 'b'
+		 *		} );
+		 *		parser.parse( '<!-- Example --><b>Hello</b>' );
+		 *
+		 * @param {String} tagName The tag name. The name is guarantted to be lowercased.
+		 */
+		onTagClose: function() {},
+
+		/**
+		 * Function to be fired when text is found. This function
+		 * should be overriden when using this class.
+		 *
+		 *		var parser = new CKEDITOR.htmlParser();
+		 *		parser.onText = function( text ) {
+		 *			alert( text ); // 'Hello'
+		 *		} );
+		 *		parser.parse( '<!-- Example --><b>Hello</b>' );
+		 *
+		 * @param {String} text The text found.
+		 */
+		onText: function() {},
+
+		/**
+		 * Function to be fired when CDATA section is found. This function
+		 * should be overriden when using this class.
+		 *
+		 *		var parser = new CKEDITOR.htmlParser();
+		 *		parser.onCDATA = function( cdata ) {
+		 *			alert( cdata ); // 'var hello;'
+		 *		} );
+		 *		parser.parse( '<script>var hello;</script>' );
+		 *
+		 * @param {String} cdata The CDATA been found.
+		 */
+		onCDATA: function() {},
+
+		/**
+		 * Function to be fired when a commend is found. This function
+		 * should be overriden when using this class.
+		 *
+		 *		var parser = new CKEDITOR.htmlParser();
+		 *		parser.onComment = function( comment ) {
+		 *			alert( comment ); // ' Example '
+		 *		} );
+		 *		parser.parse( '<!-- Example --><b>Hello</b>' );
+		 *
+		 * @param {String} comment The comment text.
+		 */
+		onComment: function() {},
+
+		/**
+		 * Parses text, looking for HTML tokens, like tag openers or closers,
+		 * or comments. This function fires the onTagOpen, onTagClose, onText
+		 * and onComment function during its execution.
+		 *
+		 *		var parser = new CKEDITOR.htmlParser();
+		 *		// The onTagOpen, onTagClose, onText and onComment should be overriden
+		 *		// at this point.
+		 *		parser.parse( '<!-- Example --><b>Hello</b>' );
+		 *
+		 * @param {String} html The HTML to be parsed.
+		 */
+		parse: function( html ) {
+			var parts, tagName,
+				nextIndex = 0,
+				cdata; // The collected data inside a CDATA section.
+
+			while ( ( parts = this._.htmlPartsRegex.exec( html ) ) ) {
+				var tagIndex = parts.index;
+				if ( tagIndex > nextIndex ) {
+					var text = html.substring( nextIndex, tagIndex );
+
+					if ( cdata )
+						cdata.push( text );
+					else
+						this.onText( text );
+				}
+
+				nextIndex = this._.htmlPartsRegex.lastIndex;
+
+				/*
+				 "parts" is an array with the following items:
+					0 : The entire match for opening/closing tags and comments.
+					1 : Group filled with the tag name for closing tags.
+					2 : Group filled with the comment text.
+					3 : Group filled with the tag name for opening tags.
+					4 : Group filled with the attributes part of opening tags.
+				 */
+
+				// Closing tag
+				if ( ( tagName = parts[ 1 ] ) ) {
+					tagName = tagName.toLowerCase();
+
+					if ( cdata && CKEDITOR.dtd.$cdata[ tagName ] ) {
+						// Send the CDATA data.
+						this.onCDATA( cdata.join( '' ) );
+						cdata = null;
+					}
+
+					if ( !cdata ) {
+						this.onTagClose( tagName );
+						continue;
+					}
+				}
+
+				// If CDATA is enabled, just save the raw match.
+				if ( cdata ) {
+					cdata.push( parts[ 0 ] );
+					continue;
+				}
+
+				// Opening tag
+				if ( ( tagName = parts[ 3 ] ) ) {
+					tagName = tagName.toLowerCase();
+
+					// There are some tag names that can break things, so let's
+					// simply ignore them when parsing. (#5224)
+					if ( /="/.test( tagName ) )
+						continue;
+
+					var attribs = {},
+						attribMatch,
+						attribsPart = parts[ 4 ],
+						selfClosing = !!( attribsPart && attribsPart.charAt( attribsPart.length - 1 ) == '/' );
+
+					if ( attribsPart ) {
+						while ( ( attribMatch = attribsRegex.exec( attribsPart ) ) ) {
+							var attName = attribMatch[ 1 ].toLowerCase(),
+								attValue = attribMatch[ 2 ] || attribMatch[ 3 ] || attribMatch[ 4 ] || '';
+
+							if ( !attValue && emptyAttribs[ attName ] )
+								attribs[ attName ] = attName;
+							else
+								attribs[ attName ] = attValue;
+						}
+					}
+
+					this.onTagOpen( tagName, attribs, selfClosing );
+
+					// Open CDATA mode when finding the appropriate tags.
+					if ( !cdata && CKEDITOR.dtd.$cdata[ tagName ] )
+						cdata = [];
+
+					continue;
+				}
+
+				// Comment
+				if ( ( tagName = parts[ 2 ] ) )
+					this.onComment( tagName );
+			}
+
+			if ( html.length > nextIndex )
+				this.onText( html.substring( nextIndex, html.length ) );
+		}
+	};
+})();