[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Restricting Facets
Hello, Is it possible to define a new simple type to constrain the pattern of a time duration so that duration can at most be measured in days. For instance, <xsd:simpleType name="MyTimeDuration" base="xsd:timeDuration"> <xsd:pattern value="-?P(\d+D)?(T(\d+H)?(\d+M)?(\d+(\.\d+)?S)?)?" /> </xsd:simpleType> According to the XML Schema working drafts, pattern facet is allowed for timeDuration. My interpretation is that any pattern facet, once specified for a subtype of the timeDuration type, can further restrict the format of timeDuration provided that it is still of a valid timeDuration format. Is this correct? Furthermore does the parser need to check this? ie check that the pattern of MyTimeDuration is indeed still a valid pattern for timeDuration. Cheers, Michael. *************************************************************************** This is xml-dev, the mailing list for XML developers. To unsubscribe, mailto:majordomo@x...&BODY=unsubscribe%20xml-dev List archives are available at http://xml.org/archives/xml-dev/ ***************************************************************************
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