- From: Thomson, Martin <Martin.Thomson@andrew.com>
- Date: 05 Dec 2005 15:59:02 -0700
- To: <www-xml-schema-comments@w3.org>
To save us all from having to do something like the below, it might be useful to have an IP address base type.
Constraining facets might be: length, minLength, maxLength, pattern and enumeration.
Care should be taken to ensure that "::1" and "0:0:0:0:0:0:1" are equal.
Values are totally ordered. Values are bounded (to 32 and 128 bits).
Cheers,
Martin
p.s. maybe someone has a better regex set for IPv6 addresses, I've kept it in different patterns here, but a (...|..|.) set would work equally well.
-----------
<xsd:simpleType name="ipv4">
<xsd:annotation>
<xsd:documentation>
An IP version 4 address.
</xsd:documentation>
</xsd:annotation>
<xsd:restriction base="xsd:token">
<xsd:pattern value="(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]?[0-9])"/>
<xsd:pattern value="[0-9A-Fa-f]{8}"/>
</xsd:restriction>
</xsd:simpleType>
<xsd:simpleType name="ipv6">
<xsd:annotation>
<xsd:documentation>
An IP version 6 address, based on RFC 1884.
</xsd:documentation>
</xsd:annotation>
<xsd:restriction base="xsd:token">
<!-- Fully specified address -->
<xsd:pattern value="[0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){7}"/>
<!-- Double colon start -->
<xsd:pattern value=":(:[0-9A-Fa-f]{1,4}){1,7}"/>
<!-- Double colon middle -->
<xsd:pattern value="([0-9A-Fa-f]{1,4}:){1,6}(:[0-9A-Fa-f]{1,4}){1}"/>
<xsd:pattern value="([0-9A-Fa-f]{1,4}:){1,5}(:[0-9A-Fa-f]{1,4}){1,2}"/>
<xsd:pattern value="([0-9A-Fa-f]{1,4}:){1,4}(:[0-9A-Fa-f]{1,4}){1,3}"/>
<xsd:pattern value="([0-9A-Fa-f]{1,4}:){1,3}(:[0-9A-Fa-f]{1,4}){1,4}"/>
<xsd:pattern value="([0-9A-Fa-f]{1,4}:){1,2}(:[0-9A-Fa-f]{1,4}){1,5}"/>
<xsd:pattern value="([0-9A-Fa-f]{1,4}:){1}(:[0-9A-Fa-f]{1,4}){1,6}"/>
<!-- Double colon end -->
<xsd:pattern value="([0-9A-Fa-f]{1,4}:){1,7}:"/>
<!-- Embedded IPv4 addresses -->
<xsd:pattern value="((:(:0{1,4}){0,3}(:(0{1,4}|[fF]{4}))?)|(0{1,4}:(:0{1,4}){0,2}(:(0{1,4}|[fF]{4}))?)|((0{1,4}:){2}(:0{1,4})?(:(0{1,4}|[fF]{4}))?)|((0{1,4}:){3}(:(0{1,4}|[fF]{4}))?)|((0{1,4}:){4}(0{1,4}|[fF]{4})?)):(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]?[0-9])"/>
<!-- The unspecified address -->
<xsd:pattern value="::"/>
</xsd:restriction>
</xsd:simpleType>
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[mf2]
Received on Monday, 5 December 2005 23:01:24 UTC