[xsl] Namespace 'http://www.w3.org/2005/xpath-functions' does not contain any functions (was Re: [xsl] XSL cant check if "File exists"?)

Subject: [xsl] Namespace 'http://www.w3.org/2005/xpath-functions' does not contain any functions (was Re: [xsl] XSL cant check if "File exists"?)
From: Laky Tang <tulaky@xxxxxxxxx>
Date: Tue, 29 Aug 2006 14:04:16 -0700 (PDT)
Thanks Mukul.
I did try
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="2.0"
		<xsl:if test="fn:doc-available($url)"><br /> da file
does not exists</xsl:if>

 but IE says Namespace
'http://www.w3.org/2006/xpath-functions' does not
contain any functions.(tried both 2006 and 2005 in the
fn namespace declaration)
Firefox says "Error during XSLT transformation: An
unknown XPath extension function was called."

Am I missing something in the headers or should I just
wait until the Candidate recommendation is implemented
by most tool vendors?
If so, is there an immediate solution for this (to
check if a file exists)?
Thanks again,
Date: Mon, 28 Aug 2006 14:28:58 +0530
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
From: "Mukul Gandhi" <gandhi.mukul@xxxxxxxxx>
Subject: Re: [xsl] XSL cant check if "File exists"?

With XSLT 2.0, you can use the doc-available(string?
$uri) function.

On 8/28/06, Laky Tang <tulaky@xxxxxxxxx> wrote:
> I have followed various postings and I am led to
> believe that XSL does not have any built in
> to check if a file exists or not. I read there is a
> way to check using extensions, but the following
> example gives me an error "Namespace 'java.io.File'
> does not contain any functions" in IE and XML spy.
> works incorrectly in Firefox / Flock by always
> the file does not exist (even if it does). Changing
> XSLT 1.0 to 2.0 did not make any difference.
> I find it quite ironic that XSLT lacks this basic
> capability to check if a file exists-or-not given
> main use is in working with XML documents (and
> If there is a simple way to gracefully handle the
> condition, can somebody please point me in the right
> direction?
> Thanks,
> -Tulaky
> Example adapted from another posting:
> ------------------------
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:stylesheet version="1.0"
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
> xmlns:fo="http://www.w3.org/1999/XSL/Format";
> xmlns:xs="http://www.w3.org/2001/XMLSchema";
> xmlns:fn="http://www.w3.org/2005/02/xpath-functions";
> xmlns:xlink="http://www.w3.org/1999/xlink";
> <!-- my other templates go here which call this with
> the filename-->
> <xsl:template name="file_exists"
> xmlns:file="java.io.File">
>  <xsl:param name="filename" />
>  <xsl:if test="not(file:exists($filename))">
>  file <xsl:value-of select="$filename"/> does not
> exist!
>  </xsl:if>
> </xsl:template>
> </xsl:stylesheet>

Mukul Gandhi



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