case "Prefix":
				var p Prefix
				if err = d.DecodeElement(&p, &se); err != nil {
					return err
				}
				f.Prefix = p
			case "And":
				var and And
				if err = d.DecodeElement(&and, &se); err != nil {
					return err
				}
				f.And = and
				f.andSet = true
			case "Tag":
				var tag Tag
				if err = d.DecodeElement(&tag, &se); err != nil {
					return err
				}
				f.Tag = tag

		return bufio.NewWriter(xioutil.Discard)
	},
}

// UnmarshalXML - decodes XML data.
func (c *CompressionType) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
	var s string
	if err := d.DecodeElement(&s, &start); err != nil {
		return errMalformedXML(err)
	}

	parsedType := CompressionType(strings.ToUpper(s))
	if s == "" || parsedType == "NONE" {
		parsedType = noneType
	}

	switch parsedType {