Re: [xml] RNG error messages?

[Chris Ryland <cpr emsoftware com>]

I see! An interesting challenge--doesn't it involve backtracking to 
some degree, since RNG specifically allow ambiguity?

Is there anything one could work on to help make this better, or is it 
really all too deep magic to even contemplate?

On Apr 17, 2004, at 6:42 PM, Daniel Veillard wrote:

> On Sat, Apr 17, 2004 at 05:39:25PM -0400, Chris Ryland wrote:
> > Daniel--
> >
> > See session below--is this what you're talking about for not-ideal
> > error message?
> >
> > Basically, if the attribute "break-after" of the <para> element 
> > doesn't
> > validate, xmllint gives a spurious error about "Element ufo has extra
> > content: p".
> [...]
> > Untitled1.xml:6: element para: Relax-NG validity error : Invalid
> > attribute break-after for element para
> > Untitled1.xml:4: element p: Relax-NG validity error : Element ufo has
> > extra content: p
> > Untitled1.xml fails to validate
>
>   yes, that kind of problems. Due to the model of Relax-NG in a choice
> you may have different variant of <p> syntax, the fact that an 
> attribute
> doesn't validate doesn't mean the element content won't validate. So
> libxml2 stores potential error messages but how long it stores them
> or discard them is imperfect and it may not be the most significant 
> error
> which gets raised.
>
> Daniel
>
>
> --
> Daniel Veillard      | Red Hat Desktop team http://redhat.com/
> veillard redhat com  | libxml GNOME XML XSLT toolkit  
> http://xmlsoft.org/
> http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/
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Cheers!
--Chris Ryland / Em Software, Inc. / www.emsoftware.com