On 2/21/07, stephan(_at_)wissel(_dot_)net <stephan(_at_)wissel(_dot_)net> wrote:
Hi there,
I have an XML file like this:
<?xml version="1.0" encoding="UTF-8"?>
<funnylist>
<listitem>
<formatinfo color="yellow" />
<stuffinside>Info</stuffinside> MoreInfo
</listitem>
<listitem>
<formatinfo color="blue" />
</listitem>
<listitem>
<formatinfo color="red" />EvenMoreInfo
</listitem>
</funnylist>
I need to filter out this element:
<listitem>
<formatinfo color="blue" />
</listitem>
The rule: if listitem contains only formatinfo and no other element or
text then remove it.
I have no clue how to formulate the xPath.
Help appreciated.
This is XSLT's party piece - you need an "identity" template, and then
a specific "no-op" template matching the element you want to suppress:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<!-- identity template -->
<xsl:template match="@*|node()">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>
<!-- no-op template -->
<xsl:template match="listitem[formatinfo][count(child::*) = 1]"/>
</xsl:stylesheet>
The "identity template" traverses the source tree copying each node to
the result tree. The "no-op" template overrides the generic identity
template for nodes that it matches, and it doesn't copy the nodes -
hence "no-op".
In this case, the no-op template will only suppress <listitem>'s with
a single <formatinfo> - if you need it to do more then post back.
cheers
andrew
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