# File lib/asciidoctor/attribute_list.rb, line 187
  def parse_attribute_value quote
    # empty quoted value
    if @scanner.peek(1) == quote
      @scanner.get_byte
      return ''
    end

    if (value = scan_to_quote quote)
      @scanner.get_byte
      value.gsub EscapedQuoteRxs[quote], quote
    else
      %(#{quote}#{scan_to_delimiter})
    end
  end