Re: [xml] setting externelEntityResolver on a per-context basis

[Stefan Behnel <stefan_ml behnel de>]

Lars Oppermann wrote:
> When using xmlCtxtReadIO, how can I make sure that I can also control 
> the IO which occurs when an external subset or external DTDs are loaded? 
>   While I working with this, it seemed like external entities were only 
> being resolved when I had used xmlSetExternalEntityLoader before parsing 
> and that setting ctxt.sax.resolveEntity had no effect whatsoever on the 
> entity resolution.
>
> So you are absolutely correct that there is no need for me to use 
> xmlCtxtReadFile. I can very well do with the ReadIO version. I'm just 
> wondering how to get called for resolution of external entities embedded 
> in the document that is being parsed...
>
> > > Is it currently possible in libxml2 to set the external entity resolver 
> > > for an single xmlParserCtxt instead of using 
> > > xmlSetExternalEntityLoader() which seems to be setting it globally?

What we do in lxml is: set a global resolver and have it dispatch to whatever
the _private field in the parser context points to. We actually do a lot more
that way than only resolving external entities, but that's what you can use it
for here.

Stefan