Many thanks for taking the time to check! Your reassuring reply made me
go and check how I was running the code, and yes, of course, I was
running it in a context where that "base-uri(.)" was bound to cause
confusion.
Thanks again!
On 13/01/17 07:49, Dr. Patrik Stellmann wrote:
I just tested you code (also with oXygen 18.1 but with minimal modifications on
a dita map) and it worked fine:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:xs="http://www.w3.org/2001/XMLSchema";
exclude-result-prefixes="xs"
version="3.0">
<xsl:mode name="#default" on-no-match="shallow-skip"/>
<xsl:template match="topicref">
<xsl:variable name="filename" as="xs:string">
<xsl:value-of select="@href"/>
</xsl:variable>
<xsl:variable name="resolvedFile" as="xs:anyURI"
select="resolve-uri(@href, base-uri(.))"/>
<xsl:message>
<xsl:value-of select="concat($filename, ' resolves to ', $resolvedFile)"/>
</xsl:message>
<xsl:if test="not(fs:exists(fs:new($resolvedFile)))"
xmlns:fs="java.io.File">
<xsl:value-of select="concat($filename, ' Not Found')"/>
</xsl:if>
<xsl:text>
</xsl:text>
</xsl:template>
</xsl:stylesheet>
I'd recommend you to create a similar minimal sample to make sure the problem
lies really within this piece of code.
Patrik
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-----Ursprüngliche Nachricht-----
Von: oXygen-user [mailto:[email protected]] Im Auftrag von Lou
Burnard
Gesendet: Donnerstag, 12. Januar 2017 19:59
An: [email protected]
Betreff: [oXygen-user] Checking whether a file exists in XSLT
I need to write a stylesheet which checks the value of an attribute to see if
it is the name of an existing file. You can't do it directly in XSLT of course,
so I am following the advice of Mike Kay
(https://www.oxygenxml.com/archives/xsl-list/200506/msg00400.html) and trying
to do it with a java extension in an XSLT2 stylesheet. Here's the relevant
template, which I run with saxon EE within oXygen 18.1
<xsl:template match="tei:pb">
<xsl:variable name="filename" as="xs:string">
<xsl:value-of select="@facs"/>
</xsl:variable>
<xsl:variable name="resolvedFile" as="xs:anyURI"
select="resolve-uri(@facs, base-uri(.))"/>
<xsl:message>
<xsl:value-of select="concat($filename, ' resolves to ',
$resolvedFile)"/>
</xsl:message>
<xsl:if test="not(fs:exists(fs:new($resolvedFile)))"
xmlns:fs="java.io.File">
<xsl:value-of select="concat($filename, ' Not Found')"/>
</xsl:if>
<xsl:text>
</xsl:text>
</xsl:template>
The messages produced tell me that the filenames are being resolved correctly
(they are all relative URLs like this
../../something/foo/foo.jpg) but the test always returns true, whether the file
concerned exists or not. Am I missing something obvious? Or not obvious? This
has been driving me nuts all day...
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