On 5/3/05, Jan Tietjens <jan(_dot_)tietjens(_at_)gentleware(_dot_)com> wrote:
Hello,
I am not understanding why the following xslt snipped produces an empty
'someElement' element (XSLT 1.0):
<xsl:template match="/">
<xsl:call-template name="printSomeAttributes">
<xsl:with-param name="attributes">
<xsl:attribute name="juhu">Hello World!</xsl:attribute>
</xsl:with-param>
</xsl:call-template>
</xsl:template>
<xsl:template name="printSomeAttributes">
<xsl:param name="attributes"/>
<xsl:element name="someElement">
<xsl:value-of select="$attributes"/>
</xsl:element>
</xsl:template>
If you run it with Saxon 8.4 the error message that is produced
describes the cause of the problem very well:
"Error at attribute constructor juhu="{...}" on line 6 of
file:/C:/Program%20Files/Java/jdk1.5.0_01/bin/marrowtr.xsl:
XTDE0410: Cannot create an attribute node whose parent is a document node
Transformation failed: Run-time errors were reported"
Saxon 6.5.3 produces also a good message:
"Recoverable error
at xsl:attribute on line 6 of file:/(Untitled):
Cannot write an attribute node when no element start tag is open"
What is happening is that the previous node produced is not an element
(in fact it is a root node), so the attribute (even if created) cannot
be attached to an element node.
The result is either an error (in XSLT 2.0) or a recoverable error (as
in XSLT 1.0) in which case no attribute is present in the output.
Cheers,
Dimitre Novatchev
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