I'm doing a recoding of SourceBans which is a Steam ID banning system for Multiplayer Online Games (released under Creative Commons).
I'm a bit useless with RegEx - theres a validation line which validates Steam IDs
Steam IDs are STEAM_x:x:xxxxxxxxxQuote:
I want to change it so it validates Punkbuster GUIDs instead. These are 32 characters log and alphanumeric.