if(!dojo._hasResource["dojo.data.util.filter"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.

dojo._hasResource["dojo.data.util.filter"] = true;

dojo.provide("dojo.data.util.filter");



dojo.data.util.filter.patternToRegExp = function(/*String*/pattern, /*boolean?*/ ignoreCase){

	//	summary:  

	//		Helper function to convert a simple pattern to a regular expression for matching.

	//	description:

	//		Returns a regular expression object that conforms to the defined conversion rules.

	//		For example:  

	//			ca*   -> /^ca.*$/

	//			*ca*  -> /^.*ca.*$/

	//			*c\*a*  -> /^.*c\*a.*$/

	//			*c\*a?*  -> /^.*c\*a..*$/

	//			and so on.

	//

	//	pattern: string

	//		A simple matching pattern to convert that follows basic rules:

	//			* Means match anything, so ca* means match anything starting with ca

	//			? Means match single character.  So, b?b will match to bob and bab, and so on.

	//      	\ is an escape character.  So for example, \* means do not treat * as a match, but literal character *.

	//				To use a \ as a character in the string, it must be escaped.  So in the pattern it should be 

	//				represented by \\ to be treated as an ordinary \ character instead of an escape.

	//

	//	ignoreCase:

	//		An optional flag to indicate if the pattern matching should be treated as case-sensitive or not when comparing

	//		By default, it is assumed case sensitive.



	var rxp = "^";

	var c = null;

	for(var i = 0; i < pattern.length; i++){

		c = pattern.charAt(i);

		switch (c) {

			case '\\':

				rxp += c;

				i++;

				rxp += pattern.charAt(i);

				break;

			case '*':

				rxp += ".*"; break;

			case '?':

				rxp += "."; break;

			case '$':

			case '^':

			case '/':

			case '+':

			case '.':

			case '|':

			case '(':

			case ')':

			case '{':

			case '}':

			case '[':

			case ']':

				rxp += "\\"; //fallthrough

			default:

				rxp += c;

		}

	}

	rxp += "$";

	if(ignoreCase){

		return new RegExp(rxp,"i"); //RegExp

	}else{

		return new RegExp(rxp); //RegExp

	}

	

};



}