Function to Format Phone Number with RegEx and Coldfusion

formatPhone.cfc

<cfscript>
     component output="false" {

        public formatPhone function init(){
                return this;
                }

	public string function formatPhone(required string phoneNumber)
		description="Strips out anything that isn't a number and then takes the first 10 digits and formats them to our spec: (404) 555-1212"
		output="false" 
		{
			var failedReturn = 0;
			// Strip out everything but the numbers
			var cleanNumber = REReplaceNoCase(arguments.phoneNumber,"[^0-9]","","All");
			
			// area code can't start with a 1 or 0, so remove them if they are at the beginning
			do{
				if(Left(cleanNumber,1) EQ 1 OR Left(cleanNumber,1) EQ 0){
					cleanNumber = right(cleanNumber,len(cleanNumber) - 1);
				}
			}
			while(left(cleanNumber,1) EQ 1 OR left(cleanNumber,1) EQ 0);
			
			// If there are stil 10 or more digits left, lets use the left 10 and drop the rest
			if(len(cleanNumber) LT 10){
				return failedReturn;
			}
			else{
				cleanNumber = left(cleanNumber,10);
			}
			// Format the 10 digits we have
			cleanNumber = "(#left(cleanNumber,3)#) #mid(cleanNumber,4,3)#-#right(cleanNumber,4)#";
			return cleanNumber;		
		}
     }
</cfscript>