RE: Do something if no items in for-each meet criteria

This code is wrong, it produces no output if one or more furry animals
are found.

Michael Kay

> -----Original Message-----
> From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx 
> [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of Xia Li
> Sent: 12 September 2003 00:57
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: RE:  Do something if no items in for-each meet criteria
> 
> 
> 
> Hi,
>    Here is a possible solution, create a variabe to record 
> the result of "for-each" statement and test the length of the 
> variable. It might not be the perfect one. but it can get the 
> desired result.
> 
> <xsl:transform xmlns:xsl='http://www.w3.org/1999/XSL/Transform'
> version='1.0'
> xmlns:lang='en'
> >
> 	<xsl:template match="/">
> 		<xsl:variable name="noFurry">
> 			<xsl:for-each select="//animal">
> 				<xsl:if test="furry = 'true'">
>      					<xsl:value-of 
> select="type"/><br/>
>    				</xsl:if>
>    			</xsl:for-each>
> 		</xsl:variable>
> 
> 		<xsl:if test="string-length($noFurry) = 0">
> 			<xsl:message>None are furry</xsl:message>
> 		</xsl:if>
> 	</xsl:template>
> </xsl:transform>
> 
> Lisa
> 
> Software Engineer
> Galdos Systems Inc
> 
> -----Original Message-----
> From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx]On Behalf Of 
> Peter Hollingsworth
> Sent: Thursday, September 11, 2003 4:12 PM
> To: XSL-List@xxxxxxxxxxxxxxxxxxxxxx
> Subject:  Do something if no items in for-each meet criteria
> 
> 
> I'm trying to
>    1) go through a set of nodes
>    2) if any matches my criteria, display it
>    3) if NONE matches my criteria, display a message like "None"
> 
> For example, imagine this xml listing some animals:
> <animal>
>    <type>snake</type>
>    <furry>false</furry>
> </animal>
> <animal>
>    <type>fish</type>
>    <furry>false</furry>
> </animal>
> 
> and this XSL that lists all the ones with fur:
> The following animals are furry:<br/>
> <xsl:for-each select="animal">
>    <xsl:if test="furry = 'true'">
>      <xsl:value-of select="type"/><br/>
>    </xsl:if>
> </xsl:for-each>
> [if no animals were furry, print "None are furry"]  <---how 
> can I do this?
> 
> Any way I can accomplish what I'm trying to do on the last line above?
> 
> Thanks.
> 
> --Peter
> 
> 
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
> 
> 
> 
> 
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> 


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