Re: [xml] libxml2 and PI <?xml-model?>

[Daniel Veillard <veillard redhat com>]

On Sat, Jun 04, 2011 at 01:18:55PM +0200, Thomas Schraitle wrote:
> Hi 
>
> for version 12.x, the oXygen XML editor implemented a new W3C's processing 
> instruction (PI) named xml-model[1]. An example file could look like this:
>
> ------------------8<------------------
> <?xml version="1.0" encoding="UTF-8"?>
> <?xml-model href="docbook.rnc" type="application/relax-ng-compact-syntax"?>
> <section xmlns="http://docbook.org/ns/docbook"; version="5.0">
>   <title>Test</title>
>   <para>Test</para>
> </section>
> ------------------8<------------------
>
> However, using xmllint gives me the following error:

  not an error, it's a warning !

> $ rpm -q libxml2
> libxml2-2.7.7-4.5.1.x86_64
> $ xmllint --noout test-xml-model.xml 
> xml/structure/test-xml-model.xml:2: parser warning : xmlParsePITarget: invalid 
> name prefix 'xml'
> <?xml-model href="docbook.rnc" type="application/relax-ng-compact-syntax"?>
>            ^
>
> It seems the above PI isn't known in the libxml2 documentation. Also no 
> bugzilla entry exists related to the above PI. 

  yeah I just added it in the code, it's trivial:

http://git.gnome.org/browse/libxml2/commit/?id=4c4653e587838a2cc78ddc03cb77749198f12c6b

> This is unfortunate as such files can not processed by xmllint or xsltproc 
> anymore. Before I open a bug, I thought I just ask for some feedback.

  of course they can still be processed, a warning never stops
processing, if they are not processed it's that something else
is blocking, but certainly not the warning from libxml2 parser.

Daniel

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