Hi,   I am searching through the forum and did not got a right suggestion. I am doing LDAP authentication and getting macaddress as User-Name in the following format. User-Name = "001e.5283.34aa" I want to convert that to  "001E528334AA" => convert to uppercase.and remove the dots. Is there any function I can use such as,  ldap {    User-Name := User-Name.toUpperCase().replace('.',''); } Please guide me to the documentation. Thanks and Regards. Eric.