code: public boolean exactOrError(String match,TextProvider textProvider) 
      {
          if (!exact(match,textProvider,false))
          {
              throw new ParserException("Expected "+match,textProvider);
          }
          return true;
      }
docs: Match against the passed string.
  Case is ignored if the ignoreCase flag is set.
  @param match
  @param textProvider
  @return true if matched