default namespace = ""
namespace xsi = "http://www.w3.org/2001/XMLSchema-instance"

start =
  element dataroot {
    attribute generated { xsd:NMTOKEN },
    attribute xsi:noNamespaceSchemaLocation { xsd:NCName },
    element BUFRCREX_19_0_0_TableB_en {
      element No { xsd:integer },
      element ClassNo { xsd:integer { minInclusive = "0" maxInclusive = "63" } },
      element ClassName_en { text },
      element FXY { xsd:NMTOKEN { pattern = "0[0-6][0-9][012][0-9]{2}" } },
      element ElementName_en { text },
      element Note_en { xsd:string { maxLength = "30" } }?,
      element BUFR_Unit { text },
      element BUFR_Scale { xsd:integer },
      element BUFR_ReferenceValue { xsd:integer },
      element BUFR_DataWidth_Bits { xsd:integer },
      (element CREX_Unit { text },
       element CREX_Scale { xsd:integer },
       element CREX_DataWidth_Char { xsd:integer })?,
      element Status { "Deprecated" | "Experimental" | "Operational" }
    }+
  }