It uses "U+FEFF ZERO WIDTH NO-BREAK SPACE", also known as "BYTE ORDER MARK" -- which means that an Anguish program that starts with that character might not sur

It uses "U+FEFF ZERO WIDTH NO-BREAK SPACE", also known as "BYTE ORDER MARK" -- which means that an Anguish program that starts with that character might not survive translation to or from UTF-16.