Lieven Cardoen

AS3 – C# String Replace with Regular Expressions and Callback function

Uncategorized January 15th, 2009

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In AS3:

[AS]
…
var regExpDigitString:String = “\d+”;
modified = original.replace(new RegExp(regExpDigitString, “gi”), findSuffix);
…

private function findSuffix():String {
var result:String = arguments[0];
var index:int = arguments[1];
var input:String = arguments[2];

…

return result;
}
[/AS]

In C#

...
String regExpDigitString = "\\d+";	   	
modified = Regex.Replace(original, regExpDigitString, new MatchEvaluator(findSuffix), RegexOptions.IgnoreCase);
...
 
private String findSuffix(Match m) {
	String result = m.ToString();
	int index = m.Index;
	String input = original; //apparently you can't get the original string out of the Mach Object, so you'll need a reference to the original Object in your class.		
 
       ...		
 
	return result;
}