parse_attributes

# File lib/rexml/parsers/baseparser.rb, line 485
      def parse_attributes(prefixes, curr_ns)
        attributes = {}
        closed = false
        match_data = @source.match(/^(.*?)(\/)?>/m, true)
        if match_data.nil?
          message = "Start tag isn't ended"
          raise REXML::ParseException.new(message, @source)
        end

        raw_attributes = match_data[1]
        closed = !match_data[2].nil?
        return attributes, closed if raw_attributes.nil?
        return attributes, closed if raw_attributes.empty?

        scanner = StringScanner.new(raw_attributes)
        until scanner.eos?
          if scanner.scan(/\s+/)
            break if scanner.eos?
          end

          pos = scanner.pos
          loop do
            break if scanner.scan(ATTRIBUTE_PATTERN)
            unless scanner.scan(QNAME)
              message = "Invalid attribute name: <#{scanner.rest}>"
              raise REXML::ParseException.new(message, @source)
            end
            name = scanner[0]
            unless scanner.scan(/\s*=\s*/m)
              message = "Missing attribute equal: <#{name}>"
              raise REXML::ParseException.new(message, @source)
            end
            quote = scanner.scan(/['"]/)
            unless quote
              message = "Missing attribute value start quote: <#{name}>"
              raise REXML::ParseException.new(message, @source)
            end
            unless scanner.scan(/.*#{Regexp.escape(quote)}/m)
              match_data = @source.match(/^(.*?)(\/)?>/m, true)
              if match_data
                scanner << "/" if closed
                scanner << ">"
                scanner << match_data[1]
                scanner.pos = pos
                closed = !match_data[2].nil?
                next
              end
              message =
                "Missing attribute value end quote: <#{name}>: <#{quote}>"
              raise REXML::ParseException.new(message, @source)
            end
          end
          name = scanner[1]
          prefix = scanner[2]
          local_part = scanner[3]
          # quote = scanner[4]
          value = scanner[5]
          if prefix == "xmlns"
            if local_part == "xml"
              if value != "http://www.w3.org/XML/1998/namespace"
                msg = "The 'xml' prefix must not be bound to any other namespace "+
                  "(http://www.w3.org/TR/REC-xml-names/#ns-decl)"
                raise REXML::ParseException.new( msg, @source, self )
              end
            elsif local_part == "xmlns"
              msg = "The 'xmlns' prefix must not be declared "+
                "(http://www.w3.org/TR/REC-xml-names/#ns-decl)"
              raise REXML::ParseException.new( msg, @source, self)
            end
            curr_ns << local_part
          elsif prefix
            prefixes << prefix unless prefix == "xml"
          end

          if attributes.has_key?(name)
            msg = "Duplicate attribute #{name.inspect}"
            raise REXML::ParseException.new(msg, @source, self)
          end

          attributes[name] = value
        end
        return attributes, closed
      end