[xslt] Issues using parameters with namespaces

[George Joseph <gjoseph sangoma com>]

Greetings,

I've been having a heck of a time trying to pass a parameter to xsltApplyStylesheet

that has namespaces in the xpath _expression_.  

For example (abbreviated):

stylesheet:

<xsl:stylesheet xmlns:dm="urn:ietf:params:xml:ns:pidf:data-model" ...>

<xsl:param name="path" select="/*" />

 <xsl:template match="/">
<xsl:apply-templates select="$path"/>
</xsl:template>

xml:

<presence xmlns:dm="urn:ietf:params:xml:ns:pidf:data-model" ...>

<dm:device/>

...

$ xsltproc --param path "//dm:device" pidf_lo.xslt pidf_lo_test.xml

XPath error : Undefined namespace prefix
runtime error
Evaluating user parameter path failed

if I hard code that select="//dm:device"  it works fine.

Finally I did find a workaround by calling xsltNewTransformContext() then iterating

over the nsDefs in the stylesheet document and calling xmlXPathRegisterNs on

ctxt->xpathCtxt for each nsDef.

I would have thought this would have been done automatically though.  Did I

miss something or is there a better way to do this?

Thanks!

--

George Joseph

Asterisk Software Developer

Check us out at www.sangoma.com and www.asterisk.org