Re: [xsl] applying templates to all but ...

[Bruce D'Arcus <bdarcus@xxxxxxxxxxxxx>]

Hi Jeni,

On Sep 24, 2004, at 8:08 AM, Jeni Tennison wrote:

> The (cs:* except cs:creator) selects all child elements in the cs 
> namespace, and then removes from that sequence the cs:creator child 
> elements. It's slightly more understandable than using the self:: 
> axis, I think.

Yes, indeed.  My next question probably would have been "what is the 
self::axis doing here?"  So thanks for that clarification.

Since, we're here, I wonder if you have any suggestions on expanding 
the logic of what I'm doing here?

I've modified the logic of my system (the stylesheets and the config 
schema) to have sort of two levels.

	1)   structural "class"
	2)  more concrete "type"

I then mandate the config file has definitions for the types article, 
book, and chapter, each of which reflect a "class."  Those then serve 
as the generic fallback.

So, this is why:

	      <xsl:when test="$issuance = 'continuing'">
		<xsl:apply-templates 
select="$style-biblio/cs:reftype[@name='article']/cs:*">
		  <xsl:with-param name="source" select="."/>
		</xsl:apply-templates>
	      </xsl:when>

Now, where I want to extend this is to allow additional definitions in 
each class.  Example for the above might be "article-newspaper."

Those optional types can then either inherit from the fallback (which 
means basically that the only thing they are modifying is minor 
punctuation, which would be handled in other templates; there's an 
inherit-from attribute in the config schema), or not.  If not, then my 
template here has to say 
select="$style-biblio/cs:reftype[@name='article-newspaper']/cs:*".

What I think this means is I need yet another layer of xsl:choose; e.g.:

	      <xsl:when test="$issuance = 'continuing'">
	        <xsl:choose>
	          <xsl:when 
test="$style-biblio/cs:reftype[@name='article-newspaper']">
		  <xsl:apply-templates 
select="$style-biblio/cs:reftype[@name='article-newspaper']/cs:*">
		    <xsl:with-param name="source" select="."/>
		  </xsl:apply-templates>
	          </xsl:when>
	          <xsl:otherwise>
		  <xsl:apply-templates 
select="$style-biblio/cs:reftype[@name='article']/cs:*">
		    <xsl:with-param name="source" select="."/>
		  </xsl:apply-templates>
	          </xsl:otherwise>
	        </xsl:choose>
	      </xsl:when>

This would work, but intuitively I feel like this is not a great 
approach (for one, it relies on hard-coding the types values; class is 
not directly coded in the config instances, though does structure the 
logic of validation).

Any better ideas?

Bruce