private String matchPatternInBuffer ( Pattern pattern ) { matchValid = false ; matcher . usePattern ( pattern ) ; matcher . region ( position , buf . limit ( ) ) ; if ( matcher . lookingAt ( ) ) { if ( matcher . hitEnd ( ) && ( ! sourceClosed ) ) { // Get more input and try again needInput = true ; return null ; } position = matcher . end ( ) ; return matcher . group ( ) ; } if ( sourceClosed ) return null ; // Read more to find pattern needInput = true ; return null ; }
the current position