new (EstraierPure::Document)

    # File estraierpure.rb, line 177
        def initialize(draft = "")
          Utility::check_types({ draft=>String }) if $DEBUG
          @id = -1
          @attrs = {}
          @dtexts = []
          @htexts = []
          @kwords = nil
          @score = -1
          if draft.length
            lines = draft.split(/\n/, -1)
            num = 0
            while num < lines.length
              line = lines[num]
              num += 1
              break if line.length < 1
              if line =~ /^%/
                if line =~ /^%VECTOR\t/
                  @kwords = {} unless @kwords
                  fields = line.split(/\t/)
                  i = 1
                  while i < fields.length - 1
                    @kwords[fields[i]] = fields[i+1]
                    i += 2
                  end
                elsif line =~ /^%SCORE\t/
                  fields = line.split(/\t/)
                  @score = fields[1].to_i;
                end
                next
              end
              line = line.gsub(/[ \t\r\n\v\f]+/, " ")
              line = line.strip.squeeze(" ")
              if idx = line.index("=")
                key = line[0...idx]
                value = line[idx+1...line.length]
                @attrs[key] = value
              end
            end
            while num < lines.length
              line = lines[num]
              num += 1
              next unless line.length > 0
              if line[0] == 0x9
                @htexts.push(line[1...line.length]) if line.length > 1
              else
                @dtexts.push(line)
              end
            end
          end
        end