RE: Call context within a named xsl:template

thanks for your help Robert.

-----Original Message-----
From: Robert Stuart [mailto:Robert.Stuart@xxxxxxxxxxxxxxxxx]
Sent: Thursday, November 15, 2001 4:07 AM
To: 'xsl-list@xxxxxxxxxxxxxxxxxxxxxx'
Subject: RE:  Call context within a named xsl:template


No, but you can validate parameters - which, in turn, can be used to force
calling templates to give some kind of context.

(Standard caveats regarding debugging apply.)

Something like this:

###############

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
	<xsl:output method="xml" version="1.0" encoding="UTF-8"
indent="yes"/>

	<!-- a template with a required parameter -->
	<xsl:template name="called">
		<xsl:param name="caller"/>

		<!-- the interesting bit -->
		<xsl:if test="not( $caller )
			and not( caller = '0' )
			and not( caller = 'false' ) ">

			<xsl:message terminate="yes">
				<xsl:text>No caller given</xsl:text>
			</xsl:message>
		</xsl:if>
		<!-- end the interesting bit -->

		<!-- the rest of the template -->
		<b>Called by: <xsl:value-of select="$caller"/></b><br />
	</xsl:template>

	<xsl:template match="/">
		<xsl:call-template name="called">
			<xsl:with-param name="caller" select="'one'"/>
		</xsl:call-template>

		<xsl:call-template name="called">
			<xsl:with-param name="caller" select="'1'"/>
		</xsl:call-template>

		<xsl:call-template name="called">
			<xsl:with-param name="caller" select="'0'"/>
		</xsl:call-template>

		<xsl:call-template name="called">
			<xsl:with-param name="caller" select="'false'"/>
		</xsl:call-template>

<!--
	the following fails
	in my test environment, nothing but the "No caller given" message
appeared
 -->
		<!--
		<xsl:call-template name="called">
		</xsl:call-template>
		 -->
	</xsl:template>

</xsl:stylesheet>

###############

Cheers

Robert Stuart

======================================

Date: Wed, 14 Nov 2001 08:45:18 +0100
From: Ruben.Provoost@xxxxxxxxxxxxx
Subject: RE:  Call context within a named xsl:template

On 13 Nov 2001, at 18:06, Michael Kay wrote:

> > Is
> > there anyway I can determine who called me?
> >

> No.
> 
> (It's surprising how often people ask for features in XSLT that I've never
> come across in any other programming language...)

I've seen (NOT written...) Java code like this :

public void someMethod()
{
[snip]

Ruben Provoost

[snip]

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