PRBool operator()( char lhs, char rhs ) const { return nsCRT::ToUpper(lhs) == nsCRT::ToUpper(rhs); }
PRBool operator()( char lhs, char rhs ) const { return lhs == rhs; }
      PRBool operator()( char lhs, char rhs ) const { return nsCRT::ToUpper(lhs) == nsCRT::ToUpper(rhs); }