RE: [xsl] Newbie Question: Creating Error Description from Invalid Input

["Michael Kay" <mike@xxxxxxxxxxxx>]

It would be more useful to tell us what you tried, then we could see where
you went wrong.

But you can do it like this:

<xsl:template match="header">
  <xsl:copy-of select="*[child::node()]"
  <xsl:if test="*[not(child::node()]">
    <errorDescription>
     <xsl:text>Invalid elements:</xsl:text>
     <xsl:value-of select="*[not(child::node())]/name()" separator=", "/>
    </errorDescription>
  </xsl:if>
</xsl:template>

That's XSLT 2.0. If you're using 1.0, change the value-of line to

<xsl:for-each select="*[not(child::node())]">
  <xsl:value-of select="name()"/>
  <xsl:if test="position()!=last()">, </xsl:if>
</xsl:for-each>

Michael Kay
http://www.saxonica.com/ 

> -----Original Message-----
> From: Badari [mailto:badbadri@xxxxxxxxx] 
> Sent: 13 October 2006 15:21
> To: XSL List
> Subject: [xsl] Newbie Question: Creating Error Description 
> from Invalid Input
> 
> I am a newbie to XSL and am hoping that somebody can help me 
> with the following scenario. I tried to use xsl:variable but 
> was not successful. :(
>  
> I have an "errorDescription" element in the target structure. 
> Depending on the error condition result on input fields, I 
> have to concatenate the field names (that are in error) and 
> post them to the errorDescription field.
>  
> How can I do it?  Any help is appreciated.
>  
> sample input.
>  
> <request>
>  <header>
>   <address1>1234</address1>
>   <address2></address2>
>   <address3>3456</address3>
>   <address4></address4>
>  </header>
> </request>
>  
> If all address elements are expected to have values, and 2nd 
> and 4th don't have values the output file should look like:
>  
> <response>
>  <header>
>   <address1>1234</address1>
>   <address3>3456</address3>
>   <errorDescription>Invalid Elements: 
> Address2,Address4</errorDescription
>  </header>
> </response>
>  
> Thanks in advance for your help.
>  
> Badari