RE: [xsl] Newbie needs help with sorting a filtered list

["Michael Kay" <mike@xxxxxxxxxxxx>]

> This gives me the correct items, but not in alphabetical order:
> 
> <xsl:param name="param1"/>
> <xsl:param name="param2"/>
> 
> <xsl:template match="catalog/entry">
>    <xsl:if test="category[@type=$param1] and 
> category[@subcat=$param2]">
>      <xsl:for-each select="word">
>        <xsl:sort/>
>        <xsl:apply-templates/><br/>
>      </xsl:for-each>
>    </xsl:if>
> </xsl:template>
> 

Each entry only contains one word, so there's not much point sorting the
words within an entry.

> 
> This one gives me an alphabetized list, but of all the items, 
> not just the ones that match the params:
> 
> <xsl:template match="catalog">
>    <xsl:if test="entry/category[@type=$param1] and 
> entry/category[@subcat=$param2]">
>      <xsl:for-each select="entry/word">
>        <xsl:sort/>
>        <xsl:apply-templates/><br/>
>      </xsl:for-each>
>    </xsl:if>
> </xsl:template>
> 

That's because you're first testing if a qualifying entry exists, and if it
does, you're processing all the entries whether they qualify or not.

You want:

<xsl:template match="catalog">
   <xsl:for-each select="entry[category[@type=$param1 and
@subcat=$param2]]/word">
       <xsl:sort/>
       <xsl:apply-templates/><br/>
   </xsl:for-each>
</xsl:template>

Michael Kay
http://www.saxonica.com/