Re: [xml] libxml2 XML Schema validation limitation

[Martijn Faassen <faassen infrae com>]

Hello,

Allison Bloodworth wrote:
> We are using libxml2 in our PHP 5 application to do validation of an
> imported XML document against an XML schema. I am finding that when I use
> one XML Schema document which redefines some elements in a second XML Schema
> document, validation always fails.
>
> E.g. UCBEvents.xsd redefines elements in Events_1.9.xsd:
>
>         <xs:redefine schemaLocation="Events_1.9.xsd">
>
> Does anyone know what the limitations of libxml2 are in terms of XML Schema
> validation? Is it unable to handle redefines?

While I know nothing much about the implementation or the error you 
report, you should check this same validation with the latest release of 
libxml2 if you haven't already. Various bugs in validation have been 
checked in newer versions, and the versions of libxml2 that ship with 
common linux distributions may not yet be up to date.

Regards,

Martijn