def quoted_value(string)

      attribute_value = ""
      quote_type = string[0]
      position = 1
      length = string.length

      while position < length

        if string[position] == quote_type
          position += 1
          break
        else
          attribute_value += downcase_A_to_Z_only(string[position])
          position += 1
        end

      end

      [attribute_value, position]
    end
def quoted_value(string)

      attribute_value = ""
      quote_type = string[0]
      position = 1
      length = string.length

      while position < length

        if string[position] == quote_type
          position += 1
          break
        else
          attribute_value += downcase_A_to_Z_only(string[position])
          position += 1
        end

      end

      [attribute_value, position]
    end
Given a string, at the start of which is quoted attribute value, returns
 that attribute value, and the position of the next character in the string
 (following the second matching quote mark)