Re: [xsl] for-loop in xslt problem

[Ryan Gallagher <binerman@xxxxxxxxxxxxxxxxxxxxx>]

There is an excellent example of a re-usable versatile "for-loop" emulation
template in Orielly's XSLT Def. Guide.

It came in quite handy when i wanted to allow for an integer attribute to
trigger that many copies of something to be output.

Cheers,
Ryan

Quoting Vasu Chakkera <vasucv@xxxxxxxxxxx>:

> Cool. This is interesting.. You can use recursive templates to get what you 
> want..
> for example fot the xml
> <?xml version="1.0"?>
> <example>
> 	<total>45</total>
> 	<skip>20</skip>
> </example>
> 
> If you write XSL along the lines of..
> <?xml version="1.0"?>
> <xsl:stylesheet version="1.0" 
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
> 	<xsl:template match="/">
> 		<xsl:call-template name="loop">
> 			<xsl:with-param name="maxcount" select="example/total"/>
> 			<xsl:with-param name="incriment-factor" select="example/skip"/>
>

 			<xsl:with-param name="initial-value" select="0"/>
> 		</xsl:call-template>
> 	</xsl:template>
> 	<xsl:template name="loop">
> 		<xsl:param name="maxcount"/>
> 		<xsl:param name="incriment-factor"/>
> 		<xsl:param name="initial-value"/>
> <!--
> This template produces the following logic
> for ($count = 0; $count<=$total; ($count = $count + $skip))
> {
> echo("Print this");
> }
> -->
> 		<xsl:if test="$initial-value &lt; $maxcount">
> 			<xsl:text>Print this</xsl:text>
> 			<xsl:call-template name="loop">
> 				<xsl:with-param name="maxcount" select="$maxcount"/>
> 				<xsl:with-param name="initial-value" 
> select="$initial-value+$incriment-factor"/>
> 				<xsl:with-param name="incriment-factor" select="$incriment-factor"/>
> 			</xsl:call-template>
> 		</xsl:if>
> 	</xsl:template>
> </xsl:stylesheet>
> 
> This produces the result:
> Print thisPrint thisPrint this
> 
> Hope this helps. Please run the XSL against the XML i have given first to 
> make sure it works as you wanted. you may then make changes to the xpath to 
> reflect your XML.
> Please reply back if anything is unclear.
> HTH
> Vasu
> 
> 
> >From: Frankie Roberto <public@xxxxxxxxxxxxxxxxxx>
> >Reply-To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> >To: "Xsl-List@Lists. Mulberrytech. Com" <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
> >Subject: [xsl] for-loop in xslt problem
> >Date: Sat, 5 Apr 2003 02:55:43 +0100
> >
> >
> >Hi,
> >
> >I'm having problems trying to implement a 'for' loop in xslt - I haven't
> >seen any syntax so far that can cope with this (and my book doesn't go into
> >it).
> >
> >To explain, my XML looks something like:
> >
> ><total>45</total>
> ><skip>20</skip>
> >
> >
> >The PHP script I am converting would do something like this:
> >
> >for ($count = 0; $count<=$total; ($count = $count + $skip)) {
> >
> >echo("Print this");
> >
> >}
> >
> >..looping $total/$skip times plus once for the remainder.
> >
> >But I can't see any way of doing this in xslt so far...
> >
> >Ta.
> >
> >Frankie
> >
> >
> >  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
> >
> 
> 
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> 


-- 
Ryan Gallagher (binerman)
binerman@xxxxxxxxxxxxxxxxxxxxx
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