You're right, there's a bug here, previously unreported as far as I can
tell. A call to function-available() supplying a run-time string is working
in 6.5.5 only if the string has been interned.

In practice, of course, function-available() is almost always called with a
string literal as its argument.

Michael Kay
http://www.saxonica.com/


> -----Original Message-----
> From: Manfred Staudinger [mailto:manfred.staudinger@xxxxxxxxx] 
> Sent: 01 May 2008 18:26
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: Re:  function-available returns false
> 
> 2008/5/1 Andrew Welch <andrew.j.welch@xxxxxxxxx>:
> > On 01/05/2008, Manfred Staudinger 
> <manfred.staudinger@xxxxxxxxx> wrote:
> >  > With the stylesheet below Saxon 6.5.5 returns false for  >  
> > function-available for all xslt and xpath functions.
> >
> >  >  Any idea?
> >
> >  Um... yes:
> >
> >  >             <dr:functions show="false">
> >
> >  and:
> >
> >
> >  >             <xsl:with-param name="show" select="@show='true'"/>
> >
> >  If you'd tried to produce cut down examples, rather posting your  
> > entire transform you would probably would have spotted that....
> >
> >  (plus if you were questioning whether function-available() works in
> >  6.5.5 there are easier ways of finding out!)
> 
> Sorry for that ...
> XML:
> <e>number</e>
> 
> XSLT:
> <xsl:stylesheet version="1.0"
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
> <xsl:template match="/"><xsl:apply-templates/></xsl:template>
> <xsl:template match="e">
>         <xsl:copy>
>                 <xsl:value-of select="function-available(.)"/>
>         </xsl:copy>
> </xsl:template>
> </xsl:stylesheet>
> 
> Manfred