2.2.5.14 dsc:MimeExtensionPatternType
The dsc:MimeExtensionPatternType type restricts built-in type xs:NMTOKEN (as specified in [XMLSCHEMA1] and [XMLSCHEMA2]) with a pattern based on a regular expression that allows extensible keywords.
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<xs:simpleType name="MimeExtensionPatternType"> <xs:restriction base="xs:NMTOKEN"> <xs:pattern value="\w+[\w:/;_\-\\\+\.]*"/> </xs:restriction> </xs:simpleType>