Re: [xml] Possible "buggette"

["Peter Jacobi" <pj walter-graphtek com>]

Hi Daniel; All,

I may be wrong here, due to my lack of understanding of 
libxml internals, but isn't this related to some problems with 
the ctxt pointer in SAX parsing, which were discussed short 
time ago?

Is this a common symptem of the ctxt pointer serving double duty:
- used internally by libxml
- used for user provided callbacks

Can there be a general solution by splitting this functionality into two ctxt 
pointer? To make this minimally painfull, I assume ctxt should always 
point to a "system context" (or derived structs) and the "system context" 
holds the pointer to the "user context".

Regards,
Peter Jacobi


Date sent:              Tue, 8 May 2001 03:39:21 -0400
From:                   Daniel Veillard <veillard redhat com>
To:                     Matt Sergeant <matt sergeant org>
Copies to:              xml gnome org
Subject:                Re: [xml] Possible "buggette"
Send reply to:          veillard redhat com

> On Mon, May 07, 2001 at 09:30:00AM +0100, Matt Sergeant wrote:
> > Not really sure if I'm doing something wrong here, or if libxml is...
> >
> > When running the docbook xslt stuff through XML::LibXML, the external
> > entity callback I've setup doesn't get the ctxt pointer I setup before
> > starting the parse. Instead it gets a completely different ctxt pointer.
> > The callback is called several times with the ctxt pointer I originally
> > setup, but at some point it switches to something else. The particular
> > entity it is loading is "../common/iso-lat1.ent".
> >
> > Is this the expected behaviour? And if so, is there any way I can get
> > the ctxt pointer I created?
>
>   Hum, might be non trivial to fix, but doable.
> The xmlParseExternalEntity() function creates a new parser context
> for handling the entity parsing. This is fine as long as processing
> don't depends on using a specific context (entity processing ain't
> simple :-\). I could possibly modify the parser to not use a new
> context (I would need to save and restore a bunch of things but it
> should be doable). Depending on how badly the "buggette" affects
> you, I would do it sooner or later. I would appreciate if you could
> enter the bug in the bugzilla.gnome.org database so I don't forget it :-)
>
> Daniel
>
> -- 
> Daniel Veillard      | Red Hat Network http://redhat.com/products/network/
> veillard redhat com  | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/
> http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/
>
> _______________________________________________
> xml mailing list
> xml gnome org
> http://mail.gnome.org/mailman/listinfo/xml