private void skipWhitespace(){
  matcher.usePattern(WHITESPACE);
  if (matcher.lookingAt()) {
    matcher.region(matcher.end(),matcher.regionEnd());
  }
}

private void skipWhitespace ( ) { matcher . usePattern ( WHITESPACE ) ; if ( matcher . lookingAt ( ) ) { matcher . region ( matcher . end ( ) , matcher . regionEnd ( ) ) ; } }
skip over any whitespace so that the matcher region starts at the next token .
