question: private void parse ( String path ) throws Exception { if ( path != null ) { count = path . length ( ) ; data = new char [ count ] ; path . getChars ( 0 , count , data , 0 ) ; } path ( ) ; }
target:  This method is used to parse the provided XPath expression. When parsing the expression this will trim any references to the root context, also any trailing slashes are removed. An exception is thrown if the path is invalid.