# File lib/yard/parser/ruby/legacy/ruby_lex.rb, line 1142
      def identify_quotation(initial_char)
        ch = getc
        if lt = PERCENT_LTYPE[ch]
          initial_char += ch
          ch = getc
        elsif ch =~ /\W/
          lt = "\""
        else
          # RubyLex.fail SyntaxError, "unknown type of %string ('#{ch}')"
        end
        # if ch !~ /\W/
        #   ungetc
        #   next
        # end
        # @ltype = lt
        @quoted = ch unless @quoted = PERCENT_PAREN[ch]
        identify_string(lt, @quoted, ch, initial_char) if lt
      end