code: public boolean matches(String target, Match match) {
  		return this.matches(target, 0, target.length(), match);
  	}
docs: Checks whether the <var>target</var> text <strong>contains</strong> this
  pattern or not.
  
  @param match
  A Match instance for storing matching result.
  @return Offset of the start position in <VAR>target</VAR>; or -1 if not
  match.