_parse (RParsec::Some_Parser)

    # File rparsec/parsers.rb, line 556
      def _parse ctxt
        for i in (0...@least)
          return false unless @parser._parse ctxt
        end
        for i in (@least...@max)
          ind = ctxt.index
          if @parser._parse ctxt
            return true if ind==ctxt.index # infinite loop
            next
          end
          return ind==ctxt.index
        end
        return true
      end