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Julio de la VegaSubject: Using Variables. How to use a flag to insert or not a label
Author: Julio de la Vega
Date: 15 Oct 2007 10:34 AM
Originally Posted: 15 Oct 2007 10:04 AM
Hi *,

I am trying to insert a specific label only once in my xml. Let me show you my scenario:

I have 3 types of nodes (node_1, node_2 and node_3). They can appear together or not but allways in the same order. Examples of the diferent secuences that can appear in my input data:

node_1, node_2 and node_3
node_1, node_2
node_1, node_3;
node_2 and node_3
node_1
node_2
node_3

I have to insert a tag but only in the first element of this secuence.
I thought to use a variable as a flag and "xsl:if" command to decide when to insert or not the tag but I can not use it because I can not update the variable with a new value as soon as I insert my first tag.

Could you please give me an overview about how I could manage this situation?

My initial idea and my actual development that do not work:


<xsl:variable name="INSERT_LABEL" select="'Y'"/>
…

<xsl:template match="node_1">
<NODE_1>
<xsl:if test="$ INSERT_LABEL ='Y' ">
<LABEL>S</LABEL>
<xsl:variable name=" INSERT_LABEL " select="'N'"/>
</xsl:if>
<xsl:copy-of select="*"/>
</NODE_1>
</xsl:template>

<xsl:template match="node_2">
<NODE_2>
<xsl:if test="$ INSERT_LABEL ='Y' ">
<LABEL>S</LABEL>
<xsl:variable name=" INSERT_LABEL " select="'N'"/>
</xsl:if>
<xsl:copy-of select="*"/>
</NODE_2>
</xsl:template>


Thanks in advance


Best Regard

Julio
Postnext
(Deleted User) Subject: Using Variables. How to use a flag to insert or not a label
Author: (Deleted User)
Date: 16 Oct 2007 11:27 AM
Hi Julio,
if the nodes are the only children of a node, you could use count(preceding-sibling::*)=0 to test if the current one is the first one.

Hope this helps,
Alberto
Postnext
Julio de la VegaSubject: Using Variables. How to use a flag to insert or not a label
Author: Julio de la Vega
Date: 16 Oct 2007 12:00 PM
Hi Alberto,

They are not the only children of a node :-(

Thank you

More ideas?
Posttop
(Deleted User) Subject: Using Variables. How to use a flag to insert or not a label
Author: (Deleted User)
Date: 22 Oct 2007 05:37 AM
Hi Julio,
you can try with count(preceding-sibling::*[starts-with(local-name(.),'node_')])=0

Alberto
   
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