[xsl] grouping after filtering (follow on question: about meucheun method)

[=?big5?B?qkwgpGyq5A==?= <minikittygo at hotmail dot com>]

Hi,

Thanks for the reply, however, i was wondering how could i group the data 
after the orginial xml has been filtered (without writing an intermediate 
file)? 
in the previous example
...
<book>
<author>author1</author>
<name>x box</name>
<type>sc-fi</type>
</book>
<book>
<author>author2</author>
<name>elf story</name>
<type>adventure</type>
</book>
<book>
<author>author1</author>
<name>the return of Dr who</name>
<type>sc-fi</type>
</book>
<book>
<author>author2</author>
<name>something2</name>
<type>sc-fi</type>
</book>
...

what happen if you wish to filter some data out before grouping the item?

for instance 
<xsl:template match="book">
<xsl:if test="author='author2'">
<xsl:call-template select="test"/>
</xsl:if>
</xsl:template>

<xsl:template name="test"/>
<!--start grouping the data-->

</xsl:template>

however, if i started to group at this stage (which i want to group it at 
this stage) using the mucheun method, it will group the unwanted data (the 
filtered out data) as well as the wanted data which could result to losing 
data, therefore i was wondering whether it is possible to do so, or do i 
need to look for another way of grouping them? any feed back would be a 
great assist.

Many thanks

Regards
Kit





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