RE: [xsl] default attribute values?

[Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>]

(Michael McGlothlin)

Sorry to pick up a thread so old, I feel like the kid running through the 
snow after the dog sled has left....

At 04:19 PM 7/12/2002, Peter wrote:
> > Seemed to work well except in a couple cases where I rename the attribute.
> > Any way to change the name when I copy?
>
> I'm afraid not, in that case you'll have to use an xsl:if or xsl:choose
> block:
>
>        <input>
>          <xsl:attribute name="name">
>            <xsl:choose>
>              <xsl:when test="@gunk"><xsl:value-of
> select="@gunk"/></xsl:when>
>              <xsl:otherwise>default</xsl:default>
>            </xsl:choose>
>          </xsl:attribute>
>          <xsl:if test="@foo">
>             <xsl:attribute name="bar"><xsl:value-of
> select="@foo"/></xsl:attribute>
>          </xsl:if>
>       </input>

This could actually be done a bit more elegantly, following the pattern 
Peter described earlier, as so:

<input name="default">
  <xsl:apply-templates select="@gunk"/>
</input>

<xsl:template match="@gunk">
  <xsl:attribute name="name">
    <xsl:value-of select="."/>
  </xsl:attribute>
</xsl:template>

In fact if you used templates instead of the copy-of, you could generalize 
this for all the attributes:

<input name="default" name2="default2">
  <xsl:apply-templates select="@*"/>
</input>

<xsl:template match="node/@*">
  <xsl:copy-of select="."/>
</xsl:template>

<xsl:template match="@gunk" priority="1">
  <xsl:attribute name="name">
    <xsl:value-of select="."/>
  </xsl:attribute>
</xsl:template>

Note that on the template for the attribute whose name is changing (@gunk 
to @name), an explicit priority is necessary to make sure that template 
fires instead of the template that copies.

Cheers,
Wendell


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Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
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