question: public static boolean isValidName ( String name ) { final int length = name . length ( ) ; if ( length == 0 ) { return false ; } char ch = name . charAt ( 0 ) ; if ( ! isNameStart ( ch ) ) { return false ; } for ( int i = 1 ; i < length ; ++ i ) { ch = name . charAt ( i ) ; if ( ! isName ( ch ) ) { return false ; } } return true ; }
target:  Check to see if a string is a valid Name according to [5] in the XML 1.0 Recommendation