Re: [xml] Error with xmlSchemaParse

[Kasimier Buchcik <kbuchcik 4commerce de>]

Hi,

Kasimier Buchcik wrote:
> HI,
>
> Jyothirmayee, P wrote:
>
> > Hi,
> >
> > When trying to parse an xml schema file using "xmlSchemaParse" 
> > function, following errors are
> > displayed "Unable to load an external entity....." for both the urls 
> > given below :
> >
> > "http://www.w3.org/TR/2002/REC-xmldsig-core-20020212/xmldsig-core-schema.xsd"; 
> >
> >
> > and
> >
> > "http://www.w3.org/TR/2002/REC-xmlenc-core-20021210/xenc-schema.xsd";
>
> [...]
>
> > Please help me in finding out the problem. I am using the 
> > libxml2(2.6.13.win32) version.
>
>
> I tried with Libxml2 2.6.17 and it retrieves the schemata:
>
> testSchemas test-import.xsd
> http://www.w3.org/TR/2002/REC-xmlenc-core-20021210/xenc-schema.xsd:123: 
> element attribute: Schemas parser error : Element 'attribute': A global 
> attribute declaration with the name 'URI' does already exist.
>
> xmllint --version
> xmllint: using libxml version 20617CVS2322
>    compiled with: DTDValid FTP HTTP HTML C14N Catalog XPath XPointer 
> XInclude Iconv Unicode Regexps Automata Schemas Modules
>
> But there's an other bug.
> We currently use a combination of "name", "namespace" and the parent
> element's "name" to compute a unique value for an attribute declaration
> to be put in a hash table.
> With the help of your report this is asserted to be ambigious in the
> following scenario:
> 1. multiple top-level complex types have different target namespaces
>    but have the _same_ _name_; this can happen if schemata are
>    imported
> 2. those complex types contain attributes with an equal name
> 3. those attributes are in no namespace

[...]

Fixed in CVS: xmlschemas.c rev 1.102

The schemata are now loaded and do compile.

Regards,

Kasimier