# File lib/xsd/datatypes.rb, line 736
736:   def initialize(value = nil)
737:     init(Type, value)
738:   end

     # File lib/xsd/datatypes.rb, line 756
756:   def _to_s
757:     year = (@data.year > 0) ? @data.year : @data.year - 1
758:     s = format('%.4d-%02d', year, @data.mon)
759:     add_tz(s)
760:   end

     # File lib/xsd/datatypes.rb, line 742
742:   def screen_data_str(t)
743:     /^([+\-]?\d{4,})-(\d\d)(Z|(?:([+\-])(\d\d):(\d\d))?)?$/ =~ t.to_s.strip
744:     unless Regexp.last_match
745:       raise ValueSpaceError.new("#{ type }: cannot accept '#{ t }'.")
746:     end
747:     year = $1.to_i
748:     if year < 0
749:       year += 1
750:     end
751:     mon = $2.to_i
752:     zonestr = $3
753:     DateTime.civil(year, mon, 1, 0, 0, 0, tz2of(zonestr))
754:   end