[ https://issues.apache.org/jira/browse/XERCESC-2017?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alberto Massari resolved XERCESC-2017.
--------------------------------------
Resolution: Fixed
Fix Version/s: 3.2.0
Assignee: Alberto Massari
A fix is in SVN. Please verify
> Xerces-C++ is not always able to handle W3C standard keyref
> -----------------------------------------------------------
>
> Key: XERCESC-2017
> URL: https://issues.apache.org/jira/browse/XERCESC-2017
> Project: Xerces-C++
> Issue Type: Bug
> Components: Validating Parser (XML Schema)
> Affects Versions: 3.1.1
> Reporter: Mihran Hovsepyan
> Assignee: Alberto Massari
> Fix For: 3.2.0
>
>
> I use *Xerces-C++ 3.1.1* to validate schema of xml files. Bellow is example of some such file.
> <CONFIG>
> <DBS>
> <DB ID="D">
> <!--...-->
> </DB>
> <VDB ID="V">
> <!--...-->
> <PARTS>
> <PART_DB ID="V1" />
> <PART_DB ID="V2" />
> </PARTS>
> </VDB>
> <!--...-->
> </DBS>
> <HOSTS>
> <HOST ID="host1">
> <DBS>
> <DB ID="D">
> <!--...-->
> </DB>
> <DB ID="V1">
> <!--...-->
> </DB>
> <DB ID="V2">
> <!--...-->
> </DB>
> </DBS>
> <VDBS>
> <DB ID="V">
> <!--...-->
> </DB>
> </VDBS>
> </HOST>
> <!--...-->
> </HOSTS>
> </CONFIG>
> And in its schema the following key and keyref are defined for the root element `CONFIG`.
> <xsd:key name="DbIdKey">
> <xsd:selector xpath="./DBS/DB|./DBS/VDB|./DBS/VDB/PARTS/PART_DB" />
> <xsd:field xpath="@ID" />
> </xsd:key>
> <xsd:keyref name="DbIdRef" refer="DbIdKey">
> <xsd:selector xpath="./HOSTS/HOST/DBS/DB|./HOSTS/HOST/VDBS/DB" />
> <xsd:field xpath="@ID" />
> </xsd:keyref>
> So, though the file meets requirements of the schema according to *W3C* and some validators understand that (for instance XML validator of *MS Visual Studio*), *Xerces-C++ 3.1.1* unable to do that. It complains:
> identity constraint key for element 'CONFIG' not found (last_line, last_column_of_last_line)
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