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http://issues.apache.org/jira/browse/XERCESC-1512?page=comments#action_12360535
]
Grant Slade commented on XERCESC-1512:
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The VoiceXML 2.0 and 2.1 schema's have many patterns which contain multiple
expressions
Using Redhat Enterprise Linux 3 Update 3 and xerces-c-2.7.0 we have found the
same issues raised here in bug XERCESC-1512.
eg <xsd:pattern value="([a-zA-Z]|[a-zA-Z$][a-zA-Z0-9_$]*[a-zA-Z0-9_])"/> will
match the first option successfully but fail for matches that should pass the
2nd option.
This is a snippet of the vxml-datatypes.xsd which contains the issue
<xsd:simpleType name="RestrictedVariableName.datatype">
<xsd:annotation>
<xsd:documentation>Variable name which are NMTOKEN. Additional
constraints: doesn't start with "_", doesn't contain "." , must
follow ECMAScript variable naming conventions; not include ECMAScript
reserve words</xsd:documentation>
</xsd:annotation>
<!-- was xsd:NMTOKEN -->
<xsd:restriction base="xsd:token">
<xsd:pattern value="([a-zA-Z]|[a-zA-Z$][a-zA-Z0-9_$]*[a-zA-Z0-9_])"/>
</xsd:restriction>
</xsd:simpleType>
Another example of the issue occurs in the grammar-core.xsd again where
multiple patterns are defined - snippet follows
<xsd:simpleType name="Repeat.datatype">
<xsd:annotation>
<xsd:documentation>
does not expression the constraint in n-m that m must be greater than n
</xsd:documentation>
</xsd:annotation>
<xsd:restriction base="xsd:string">
<xsd:pattern value="[0-9]+"/>
<xsd:pattern value="[0-9]+-([0-9]+)?"/>
<xsd:pattern value="([0-9]+)?-[0-9]+"/>
</xsd:restriction>
</xsd:simpleType>
Hope this info helps.
> Bad XS:pattern interpretation for XSD
> -------------------------------------
>
> Key: XERCESC-1512
> URL: http://issues.apache.org/jira/browse/XERCESC-1512
> Project: Xerces-C++
> Type: Bug
> Components: Validating Parser (Schema) (Xerces 1.5 or up only)
> Versions: 2.6.0
> Environment: Windows 2000 SP4, VC 6 SP4 used to compiled the xerces
> libraries (C++ & Perl).
> I call the Xerces library from perl with the XML::Xerces - perl glue library
> Reporter: Olivier Quintens
> Assignee: Alberto Massari
>
> Hi,
> The code validates xml messages against a enterprise standard XSD.
> The following structure defines the tag validation
> <xs:element name="ENTRY_TIME_STAMP" type="typeDateSeconds" minOccurs="0"/>
> .....
> <xs:simpleType name="typeDateSeconds">
> <xs:restriction base="xs:string">
> <xs:pattern value="[0-9]{14}|[0-9]{16}"/>
> </xs:restriction>
> </xs:simpleType>
> When the tag ENTRY_TIME_STAMP contains a value which match the first part
> ([0-9]{14}), the xml is considered as valid.
> e.g : <ENTRY_TIME_STAMP>20051006082856</ENTRY_TIME_STAMP>
> When the tag ENTRY_TIME_STAMP contains a value which match the first part
> ([0-9]{16}), the validator parser failed
> e.g : <ENTRY_TIME_STAMP>2005100608285631</ENTRY_TIME_STAMP>
> Threturn error is like
> Reason :
> ERROR:
> FILE: FAKE_SYSTEM_ID
> LINE: 1
> COLUMN: 211
> MESSAGE: Datatype error: Type:InvalidDatatypeValueException, Message:Value
> '2005100608285631' does not match regular expression facet
> '([0-9]{14}|[0-9]{16})'.
> Cheers
> Olivier
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