Re: [xsl] Adding Missing Elements

["Joris Gillis" <roac@xxxxxxxxxx>]

Hi,

Tempore 18:01:35, die 09/13/2005 AD, hinc in xsl-list@xxxxxxxxxxxxxxxxxxxxxx scripsit Emerson, Matt <Matt.Emerson@xxxxxxx>:

> Given these possible variations and based on some processing elsewhere
> in the document, I would like to make sure that <node> always has
> <item>B</item> in its list...possibly adding <list> if it is not
> present.
>
> Can someone give me some suggestions on the best way to do this?
"The best way to do this" does not exist, it's amatter of personal personal style.

Here's a solution that I perceive as most elegant:

<xsl:stylesheet version="1.0" xmlns:var="myvar"
	xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
	
<xsl:output method="xml" indent="yes"/>

<var:root>
	<list>
		<item>B</item>
	</list>
</var:root>

<xsl:variable name="var" select="document('')/xsl:stylesheet/var:root/*"/>

<xsl:template match="node()|@*">
	<xsl:copy>
		<xsl:apply-templates select="node()|@*" />
	</xsl:copy>
</xsl:template>

<xsl:template match="node|list|item">
	<xsl:element name="{local-name()}">
		<xsl:apply-templates select="@*" />
		<xsl:apply-templates select="
			$var[current()/self::node][not(current()/list)]|
			$var[current()/self::list]/item[not(.=current()/item)]|
			node()" />
	</xsl:element>
</xsl:template>

</xsl:stylesheet>

regards,
--
Joris Gillis (http://users.telenet.be/root-jg/me.html)
B+Et ipsa scientia potestas estB;  - Francis Bacon , Meditationes sacrae