pattern does not match valid instance
-------------------------------------
Key: XERCESC-1588
URL: http://issues.apache.org/jira/browse/XERCESC-1588
Project: Xerces-C++
Type: Bug
Components: Validating Parser (Schema) (Xerces 1.5 or up only)
Versions: 2.7.0
Environment: all
Reporter: Boris Kolpackov
$ cat >test.xsd
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:simpleType name="RFC_0882_Zone">
<xs:restriction base="xs:string">
<xs:pattern value="|GMT|[\-+]([0-1][0-9]|2[0-3])[0-5][0-9]"/>
</xs:restriction>
</xs:simpleType>
<xs:element name="test" type="RFC_0882_Zone" />
</xs:schema>
$ cat >test.xml
<test xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="test.xsd">GMT</test>
$ dom_count -v=always -n -s -f test.xml
Error at file /tmp/test.xml, line 1, char 112
Message: Datatype error: Type:InvalidDatatypeValueException, Message:Value
'GMT' does not match regular expression facet
'|GMT|[\-+]([0-1][0-9]|2[0-3])[0-5][0-9]'.
If one changes the pattern to read 'GMT|[\-+]([0-1][0-9]|2[0-3])[0-5][0-9]|'
(i.e., moves empty option to the end), it works ok.
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