Not sure why you are writing a custom function when resolve-QName already
exists to do this job.
If your code was schema-aware, of course, the QName resolution would happen
automatically:
<xsl:template match="schema-element(foo)[(_at_)format eq QName('fmt:type1')]">
As Wendell pointed out, the reason it doesn't work is the "= true".
Michael Kay
http://www.saxonica.com/
-----Original Message-----
From: Ian Stokes-Rees [mailto:ijstokes(_at_)spmetric(_dot_)com]
Sent: 23 September 2008 18:19
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] Custom function in template match predicate
Hi,
I currently have some very unwieldy predicates showing up in
lots of xsl:template/@match statements, of the form:
<xsl:template match="
foo[ substring-after(./@format,':') = 'type1' and
namespace-uri-for-prefix(substring-before(./@format,':'),.)
= 'http://example.com/schemas/formats' ]">
which aim to match different <foo> elements based on the
@format QName
value, e.g.:
<table xmlns:fmt='http://example.com/schemas/formats'>
<foo format="fmt:type1">2008-09-23</foo>
<foo format="fmt:type2">9/23/08</foo>
</table>
and which do QName expansion so the user can choose the prefix.
I would like to replace the "match" statement with a
simplified custom
function of the form:
<xsl:template match="foo[ my:test('type1',.) = true ]">
where my:test is defined as:
<xsl:function name="my:test">
<xsl:param name="fmtcode"/>
<xsl:param name="context"/>
<xsl:choose>
<xsl:when test="substring-after($context/@format,':') =
$fmtcode and
namespace-uri-for-prefix(substring-before($context/@format,':'
),$context)
= 'http://example.com/schemas/formats' ">
<xsl:value-of select="boolean(1)"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="boolean(0)"/>
</xsl:otherwise>
</xsl:choose>
</xsl:function>
The problem is, this doesn't work with Saxon8B. Would others expect
this to work with different XSLT v2.0 processors? Is there
some way to
get this to work with Saxon8B?
Cheers,
Ian
--
Ian(_dot_)Stokes-Rees(_at_)spmetric(_dot_)com +1 (617) 418-4168
SP Metric Limited, Technology Consulting
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