[XSL-LIST Mailing List Archive Home] [By Thread] [By Date]

Re: [xsl] function-available returns false

---

---

2008/5/2 Michael Kay <mike@xxxxxxxxxxxx>:
> 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.
function-available() returns true for the extension functions
implemented in 6.5.5, is it that what you mean here?

>  In practice, of course, function-available() is almost always called with a
>  string literal as its argument.
The use case here is to get a quick reference which elements or
functions are not (jet) implemented and which extensions are available
in a certain version of an XSLT 1.0 processor (in a particular
browser).

@Andrew:
> If you'd tried to produce cut down examples, rather posting > your entire transform you would probably would have
> spotted that....
It _is_ a cut down version (not enough I agree), but there is nothing wrong:
>   <dr:functions show="false">
>   <xsl:with-param name="show" select="@show='true'"/>
$show is set to boolean false(),
>   <xsl:if test="function-available(string(.))=$show">
so the test returns true() when function-available() returns false()

Regards,

Manfred

>  > -----Original Message-----
>  > From: Manfred Staudinger [mailto:manfred.staudinger@xxxxxxxxx]
>  > Sent: 01 May 2008 18:26
>  > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
>  > Subject: Re: [xsl] 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

---