question: public static int parseCombiningClass ( String s ) throws Exception { int combining = - 1 ; if ( s . length ( ) > 0 ) { combining = Integer . parseInt ( s , 10 ) ; } return combining ; }
target:  Parse the combining attribute for a Unicode character.  If there is a combining attribute and the parse succeeds, then the hasCombining field is set to true, the combining field of this UnicodeSpec object is updated, and false is returned. If the combining attribute is an empty string, the parse succeeds but the hasCombining field is set to false. (and false is returned). The combining attribute, if any, should be a nonnegative decimal integer.