RE: XSL

Rob: You can use the concept of called-templates, and the xsl funtions
substring-after and substring-before to solve this problem.  I wrote a
sample xsl that I believe solves your problem, and I'll do my best to give
you a clear description.

When the named template "format-date" is first called, only one of the four
parameters (date) is passed.  The template first checks to see if a day has
been passed as a parameter (<xsl:when test="$day=''">).  If no day parameter
is present, the template does a little processing to get the day out of the
'date' parameter - i.e the value before the first "/".  It also truncates
the date parameter to everything after the first "/", and then re-calls the
same template with these two parameters.

This same process happens for the month and the year - the template checks
to see if they've been submitted as parameters, and if not, re-calls the
template with a processed value for this parameter.

The final when branch checks to see if all parameters are present, and if
so, prints the results to the screen.

HTH






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


<xsl:template match="*">

<xsl:call-template name="format-date">
	<xsl:with-param name="date">24/05/2002 22:55:10</xsl:with-param>
</xsl:call-template>

</xsl:template>

<xsl:template name="format-date">
		<xsl:param name="date" />
		<xsl:param name="year" />
		<xsl:param name="month" />
		<xsl:param name="day" />

		<xsl:choose>
		<xsl:when test="$day=''">
			<xsl:call-template name="format-date">
				<xsl:with-param name="date">
				<xsl:value-of select="substring-after($date, '/')" />
			</xsl:with-param>
			<xsl:with-param name="day">
				<xsl:value-of select="substring-before($date, '/')" />
			</xsl:with-param>
			</xsl:call-template>
		</xsl:when>

		<xsl:when test="$month=''">
			<xsl:call-template name="format-date">
				<xsl:with-param name="date">
					<xsl:value-of select="substring-after($date, '/')" />
				</xsl:with-param>
				<xsl:with-param name="day">
					<xsl:value-of select="$day" />
				</xsl:with-param>
				<xsl:with-param name="month">
					<xsl:value-of select="substring-before($date, '/')" />
				</xsl:with-param>
			</xsl:call-template>
			</xsl:when>


		<xsl:when test="$year=''">
			<xsl:call-template name="format-date">
				<xsl:with-param name="date">
					<xsl:value-of select="substring-after($date, '/')" />
				</xsl:with-param>
				<xsl:with-param name="day">
					<xsl:value-of select="$day" />
				</xsl:with-param>
				<xsl:with-param name="month">
					<xsl:value-of select="$month" />
				</xsl:with-param>
				<xsl:with-param name="year">
					<xsl:value-of select="substring-before($date, ' ')" />
				</xsl:with-param>
			</xsl:call-template>
			</xsl:when>

		<xsl:when test="$year!='' and $month!='' and $day!=''">
		<xsl:value-of select="$day" /> /  		<xsl:value-of select="$month" /> /
<xsl:value-of select="$year" />
		</xsl:when>
		</xsl:choose>
</xsl:template>

</xsl:stylesheet>
-----Original Message-----
From: owner-hwg-languages(at)hwg.org [mailto:owner-hwg-languages(at)hwg.org]On
Behalf Of Rob
Sent: Tuesday, August 13, 2002 8:49 AM
To: hwg-languages(at)hwg.org
Subject: XSL


Hi all,

I'm wondering if someone could guide me in a problem I've come across in
XSL.  I have a field of type date but the actual data it contains is a
combination of date+time (e.g. 24//05/2002 22:55:10).  What I want to do is
to take this format and display only the date part (i.e. strip out the
time).  Is there a way to do this using just XSL?  I know that the date
part is always in the format of ##/##/## so I'm figuring that doing a
pattern match would be the way to go but if there's an element that will do
this automatically that would be great.

If someone could be so kind as to give me a pointer or two and/or to direct
me to a website that might provide the info I'm looking for I would be most
grateful.

Cheers,

Rob.

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