I replied to your original posting at
http://p2p.wrox.com/topic.asp?TOPIC_ID=19710 Unfortunately there is an error
in the book here, and also an error in the Saxon implementation; more
embarrassingly still, the two errors are different. This is only partially
excused by the fact that the spec was changed at some stage.
The answer to your final question is yes: if an xpath-default-namespace is
in force, then there is no way to select elements in no namespace. But you
can reset it, for any region of the stylesheet, by putting
xpath-default-namespace="" on any XSLT element.
Michael Kay
-----Original Message-----
From: Joe Fawcett [mailto:joefawcett(_at_)hotmail(_dot_)com]
Sent: 29 September 2004 09:50
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] resolveQName and xpath-default-namespace
With source doc:
<doc xmlns:one="one.uri" xmlns="default.uri">
<chap xmlns="" att-one="text">
<data-one>one:value</data-one>
<data-two>value</data-two>
</chap>
</doc>
I tried the following stylesheet:
<xsl:stylesheet
version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:one="one.uri"
xmlns:def="default.uri">
<xsl:output method="text" indent="yes"/>
<xsl:variable name="doc" select="/def:doc"/>
<xsl:variable name="chap" select="/def:doc/chap"/>
<xsl:variable name="data1" select="/def:doc/chap/data-one"/>
<xsl:variable name="data2" select="/def:doc/chap/data-two"/>
<xsl:template match="/">
<xsl:variable name="res0"
select="resolve-QName($chap/@att-one, $doc)"/>
{<xsl:value-of
select="namespace-uri-from-QName($res0)"/>}<xsl:value-of
select="local-name-from-QName($res0)"/><xsl:text>#xa;</xsl:text>
<xsl:variable name="res1"
select="resolve-QName($chap/@att-one, $chap)"/>
{<xsl:value-of
select="namespace-uri-from-QName($res1)"/>}<xsl:value-of
select="local-name-from-QName($res1)"/><xsl:text>#xa;</xsl:text>
<xsl:variable name="res2"
select="resolve-QName(string($data1), $data1)"/>
{<xsl:value-of
select="namespace-uri-from-QName($res2)"/>}<xsl:value-of
select="local-name-from-QName($res2)"/><xsl:text>#xa;</xsl:text>
<xsl:variable name="res3"
select="resolve-QName(string($data2), $data2)"/>
{<xsl:value-of
select="namespace-uri-from-QName($res3)"/>}<xsl:value-of
select="local-name-from-QName($res3)"/><xsl:text>#xa;</xsl:text>
</xsl:template>
</xsl:stylesheet>
against the doc shown above. I get:
{}text
{}text
{one.uri}value
{}value
I don't understand why resolve-QName($chap/@att-one, $doc)
doesn't resolve
'value' to {one.uri}value when $doc is used for the resolving
node as it has
'one' mapped to 'one.uri'.
then I tried adding xpath-default-namespace="default-uri" and
removing the
def: prefix from the variables declarations and the
stylesheet namespace
declaration. This led to an error indicating that
$chap/@att-one was an
empty sequence. I presume this is something to do with the
default namespace
being undeclared. The full stylesheet:
<xsl:stylesheet
version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:one="one.uri"
xpath-default-namespace="default.uri">
<xsl:output method="text" indent="yes"/>
<xsl:variable name="doc" select="/doc"/>
<xsl:variable name="chap" select="/doc/chap"/>
<xsl:variable name="data1" select="/doc/chap/data-one"/>
<xsl:variable name="data2" select="/doc/chap/data-two"/>
<xsl:template match="/">
<xsl:variable name="res0"
select="resolve-QName($chap/@att-one, $doc)"/>
{<xsl:value-of
select="namespace-uri-from-QName($res0)"/>}<xsl:value-of
select="local-name-from-QName($res0)"/><xsl:text>#xa;</xsl:text>
<xsl:variable name="res1"
select="resolve-QName($chap/@att-one, $chap)"/>
{<xsl:value-of
select="namespace-uri-from-QName($res1)"/>}<xsl:value-of
select="local-name-from-QName($res1)"/><xsl:text>#xa;</xsl:text>
<xsl:variable name="res2"
select="resolve-QName(string($data1), $data1)"/>
{<xsl:value-of
select="namespace-uri-from-QName($res2)"/>}<xsl:value-of
select="local-name-from-QName($res2)"/><xsl:text>#xa;</xsl:text>
<xsl:variable name="res3"
select="resolve-QName(string($data2), $data2)"/>
{<xsl:value-of
select="namespace-uri-from-QName($res3)"/>}<xsl:value-of
select="local-name-from-QName($res3)"/><xsl:text>#xa;</xsl:text>
</xsl:template>
</xsl:stylesheet>
This didn't work either, does that mean once I have used the
xpath-default-namespace I can't select this sort of element
(no namespace)?
I am using Saxon 8 basic.
--
Joe
PS (to Michael Kay - I tried posting to Saxon list at
SourceForge but was
not able to subscribe as I never received a confirmation email)
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