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alejandromb on 07/29/10

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Last Edited at 07/29/10 03:42am

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AS3 | Resolve Dependency

/ Published in: ActionScript 3

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function ResolveDependency( value:String, data:XMLList ):String {
 
	var pattern:RegExp = /\{([a-zA-Z]([\w\_\-])*)(([\.][a-zA-Z]([\w\_\-])*)*([\.](@?)[a-zA-Z]([\w\_\-])*))?\}/g;
	var patternNodes:RegExp = /([a-zA-Z]([\w\_\-])*)(([\.][a-zA-Z]([\w\_\-])*)*([\.](@?)[a-zA-Z]([\w\_\-])*))?/g;
	var patternAttribute:RegExp = /\@/;
 
	var list:Array;
	var node:XMLList;
	var vnode:String;
 
	var attribute:String = null;
	var lnode:Array = value.match( pattern );
 
	if ( lnode != null && lnode.length > 0 ) {
 
		for ( var a:uint = 0; a < lnode.length; a++ ) {
 
			node = data;
			vnode = String( lnode[a] );
			list = String( vnode.match( patternNodes )[0] ).split( "." );
 
			if ( String( list[ list.length - 1 ] ).search( patternAttribute ) > -1 ) {
				attribute = String( list.pop() ).replace( patternAttribute, "" );
			}
 
			for ( var b:uint = 0; b < list.length; b++ ) {
				if ( node.hasOwnProperty( list[b] ) ) {
					node = node.child( list[b] );
				} else if ( b > 0 && ! node.hasOwnProperty( list[b] ) ) {
					return null;
				}
			}
 
			if( attribute != null ) {
				value = value.replace( vnode, node.attribute( attribute ) );
			}else{
				value = value.replace( vnode, node.text() );
			}
 
		}
 
		return value;
 
	}
 
	return value;
 
}
 
//Example:
 
var _data:XMLList = new XMLList("<xml><node><value id=\"url\">www.kirikacode.com</value></node></xml>");
trace( ResolveDependency( "http://{node.value}", _data ) );
trace( ResolveDependency( "Type: {node.value.@id}", _data ) );

URL: http://www.kirikacode.com.ar

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