Re: [xml] Re: maybe_offtopic: help with using exslt functions

[Stefan Kost <ensonic hora-obscura de>]

hi again,

Or other way around has anyone sucessfully used those function with xsltproc?
Can anyone point me to an example as a proof of concept?

Stefan

Stefan Kost wrote:
> Hi Ralf,
>
> R. Mattes wrote:
>
> > On Thu, 22 Sep 2005 17:42:19 +0200, Stefan Kost wrote:
> >
> > > hi,
> > >
> > > I try to use some nonstandartized exslt functions (see
> > > http://www.exslt.org/str/index.html -> str.zip)
> > >
> > > When running the attached samples I get
> > > $ xsltproc devhelp.xsl devhelp.xml
> > > xmlXPathCompOpEval: function split not found
> > > XPath error : Unregistered function
> > > xmlXPathCompiledEval: 1 object left on the stack
> > > <?xml version="1.0"?>
> > > <test xmlns="http://www.devhelp.net/book"/>
> > >
> > > when rerunning it with -v I et a long log (see attached xsltproc.log).
> > > It seems to load the function definitions, 
> >
> >
> >
> >
> > What makes you think so? From the log you posted:
> > | Registering extension prefix str : http://exslt.org/Strings
> > | LIBXSLT_PLUGINS_PATH is (null)
> > | Attempting to load plugin:
> > | /home/ensonic/lib/libxslt/1.1/exslt_org_Strings.so for
> > | URIhttp://exslt.org/Strin
> > | xmlCheckFilename failed for plugin:
> > | /home/ensonic/lib/libxslt/1.1/exs_org_Strings.so
> > | xsltPrecomputeStylesheet: removing ignorable blank node ltgs:
> >
> > Doesn't look like a successful load to me. Does the library exist
> > at 'home/ensonic/lib/libxslt/1.1/exs_org_Strings.so'?
>
>
> I belive libxslt tried to see if the function lives in a shared library 
> and tries. But the extension function is completle implemented in the 
> loaded xsl files. This makes me feel that there is possibly a bug. 
> Because the message:
>   'xmlXPathCompOpEval: function split not found'
> look like the error is cvaught too late. If there is a problem with the 
> xsl implementation, the error needs to be emitted there.
>
> > > but then seems to have
> > > difficultied to call them from the xsl file. It looks like its trying to
> > > load them from shared-object a multiple times.
> > > Any insights whats going on here?
> >
> >
> >
> > Dynamic loading attempts to load the library every time it the function
> > gets called. And fails ...
>
>  >
> Which is bad. The library won't grow there by a miracle.
>
> Ciao
>   Stefan
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