Hi,
I'm working on extending the TEI xsl stylesheet set with a more
complex 'prev-next' navigation bar. For the linking i need two
parameters: the text of the link, and the id of the link.
I use a template to get the appropriate node:
<xsl:template name="getPrev">
<xsl:variable name="nodeSet">
<xsl:text>self::div0 | self::div1 | self::div2 |
self::div3 | self::div4</xsl:text>
</xsl:variable>
Here you're binding $nodeSet to a Result Tree Fragment and…
<xsl:choose>
<xsl:when test="(preceding-sibling::*[$nodeSet]/head)[last()]">
… here if will always return true. Either copy/paste the $nodeSet text into
every place where it's used or use an entity instead of a variable.
<xsl:copy-of select="preceding::*[$nodeSet]/head[last()]" />
</xsl:when>
<xsl:when test="(ancestor::*[$nodeSet]/head)[last()]">
<xsl:copy-of select="ancestor::*[$nodeSet]/head[last()]" />
Note here that the test pattern and the copy expression do not select/match the
same nodes, just like in the previous when block if the axes were the same.
</xsl:when>
<xsl:otherwise></xsl:otherwise>
</xsl:choose>
</xsl:template>
and i call this with:
<xsl:variable name="previous">
<xsl:call-template name="getPrev" />
</xsl:variable>
And again, you're binding $previous to a RTF.
but as i would like to get the id of the node the following
code doesn't work:
<xsl:variable name="previousID">
<xsl:value-of select="generate-id( $previous )" />
</xsl:variable>
with the xsl processor saying: 'generate-id() : invalid arg
expecting a node-set'
So i have to write another template (getPrevID) with the only
difference of the selection:
'select="generate-id( ... )"'
and the xpath expression
(preceding-sibling::*[$nodeSet]/head)[last()]
is the same than this:
(preceding-sibling::*/head)[last()]
the $nodeSet variable doesn't work at this situation.
How about
<xsl:template name="getPrevID">
<xsl:choose>
<!--here you don't need to test for the last, because it will be true
even if you have just one div# head -->
<xsl:when test="preceding-sibling::*[self::div0 | self::div1 | self::div2
| self::div3 | self::div4]/head">
<xsl:value-of select="generate-id(preceding::*[self::div0 | self::div1
| self::div2 | self::div3 | self::div4]/head[last()])" />
</xsl:when>
<xsl:when test="ancestor::*[self::div0 | self::div1 | self::div2 |
self::div3 | self::div4]/head">
<xsl:value-of select="generate-id(ancestor::*[self::div0 | self::div1 |
self::div2 | self::div3 | self::div4]/head[last()])" />
</xsl:when>
</xsl:choose>
</xsl:template>
Cheers,
Jarno - Cenobita: Slaves