[xml] Whitespace in Public IDs (was: libxml2-2.6.11 -- 1. gcc warning...)

[Peter Breitenlohner <peb mppmu mpg de>]

On Fri, 9 Jul 2004, Daniel Veillard wrote:

> On Thu, Jul 08, 2004 at 10:12:33AM +0200, Peter Breitenlohner wrote:
> > .....................
> > I noticed that the existing libxml2 (<=2.6.9) does not obey section 6.2
> > (Public Identifier Normalization) of the specs:
> >
> > -----------------------------------------
> > In order to accurately and interoperably compare public identifiers, catalog
> >    processors must perform normalization on public identifiers in both the
> >    catalog and the input passed to them.
> >
> >    All strings of white space in public identifiers must be normalized to
> >    single space characters (#x20), and leading and trailing white space must
> >    be removed.
> > -----------------------------------------
> >
> > This is certainly not done in the present version, .........
> >
> > If the `must' in the specs is interpreted as manatory requirement, the only
> > reliable way to do that probably is in catalog.c, even if that may be
> > awkward if temporary strings have to be created that are later to be freed
> > (by whom and when?).
>
>  Hum, right. Basically all public entry point using Public ID should be
> patched to check this and if needed a new string should be allocated.
> That would need a new function for this, and a few more line in all those
> functions ... Not very hard but admitedly boring :-)

Hi Daniel,

If you agree, I could try to produce a patch to that effect.

regards
Peter Breitenlohner <peb mppmu mpg de>