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

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