Re: [xsl] Multi-part search XPath expressions.

[David Adams <dpadams@xxxxxxxxx>]

> You're going to be surprised how easy it is.
Right you are ;-) Thanks, that's a lot easier to read and write. I've
been experimenting with this and think something else may be coming
clear. The purpose of a select statements in apply-templates is to
select a set of nodes for processing, such as "select all extinct
birds":

	<xsl:apply-templates select='/Australian_Birds/Species[Extinct="Yes"]'/>

Then, the template can have whatever sorts of conditional behavior it
likes based on values within the nodes, such as:

<xsl:template match="Species">
   <xsl:choose>

     <xsl:when test="Extinct='Yes' ">
       <p>Extinct species name is <xsl:value-of select="Common_Name"/></p>
     </xsl:when>

 	 <xsl:when test="Extinct='No' ">
       <p>Living species name is <xsl:value-of select="Common_Name"/></p>
     </xsl:when>

     <xsl:otherwise></xsl:otherwise>
   </xsl:choose>
</xsl:template>

This, then, makes it easy to, for example, first list all extinct
species and then all living species:

 <xsl:template match="Australian_Birds">
	<xsl:apply-templates select='/Australian_Birds/Species[Extinct="Yes"]'/>
	<xsl:apply-templates select='/Australian_Birds/Species[Extinct="No"]'/>
</xsl:template>


I'm still trying to get my head around the language and am now lead
into wondering about subroutines. If I expand the template to include,
for example, Genus and species name in italics, I end up with an
obvious redundancy:

  <xsl:when test="Extinct='Yes' ">
       <p>Extinct species name is <xsl:value-of select="Common_Name"/></p>
	   (<i>
		<xsl:value-of select="Genus_Name"/>
	    <xsl:text> </xsl:text> 
 	    <xsl:value-of select="Species_Name"/>
		</i>)
     </xsl:when>

 	 <xsl:when test="Extinct='No' ">
       <p>Living species name is <xsl:value-of select="Common_Name"/></p>
		 (<i>
		<xsl:value-of select="Genus_Name"/>
	    <xsl:text> </xsl:text> 
 	    <xsl:value-of select="Species_Name"/>
		</i>)
     </xsl:when>

Should I be looking at xsl:call-template to centralize, for example,
this section of the template?
              (<i>
		 <xsl:value-of select="Genus_Name"/>
	        <xsl:text> </xsl:text> 
 	        <xsl:value-of select="Species_Name"/>
            </i>)

Thanks again,

---------------------------------------------
 David Adams
  dpadams@xxxxxxxxx
 Bermagui 2546 NSW
---------------------------------------------

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