RE: [xsl] Group problem with blank elements

[Mukul Gandhi <mukul_gandhi@xxxxxxxxx>]

Hi Mike,
  I was trying to solve this problem the XSLT 1.0 way,
but am facing some problem. I am using Saxon 6.5.3.

The XML file I used is -
<?xml version="1.0" encoding="UTF-8"?>
<root>
<statement-message>Your account is now seriously in
arrears.
To</statement-message>

<statement-message>avoid further action a payment 
of</statement-message>

<statement-message>$82.00 is required immediately.
Any</statement-message>

<statement-message>purchases will now be
declined.</statement-message>

<statement-message>
</statement-message>

<statement-message>  More text </statement-message>

<statement-message>
</statement-message>

<statement-message>
</statement-message>

<statement-message>
</statement-message>
</root>

The XSLT file I used was -
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
	
<xsl:output method="xml" indent="yes" />
	
<xsl:template match="/root">
  <xsl:apply-templates/>
</xsl:template>

<xsl:template match="node() | @*">
  <xsl:copy>
    <xsl:apply-templates select="node() | @*" />	   
  </xsl:copy>
</xsl:template>

<xsl:template match="statement-message" />

</xsl:stylesheet>

This is a usual modified identity stylesheet..

But I am getting output -
<?xml version="1.0" encoding="utf-8"?>

















Press any key to continue . . .

Can you please tell, is there problem somewhere?

Regards,
Mukul

--- Michael Kay <mike@xxxxxxxxxxxx> wrote:

> When you do xsl:value-of select="." directly inside
> xsl:for-each-group, "."
> refers to the first item in the group. You want to
> output the concatenation
> of all the items in the group, which you can do with
> 
> string-join(current-group(), ' ')
> 
> Also, each empty element that's followed by another
> empty element is being
> treated as a group containing a single member.
> 
> I think I would tackle this using
> 
>  group-adjacent="string-length(.)=0"
> 
> This will create a sequence of groups, alternating a
> sequence of empty
> elements with a sequence of non-empty elements. You
> can then test if the
> first element in the current group is non-empty, and
> if so, output the
> string-join as above.
> 
> Michael Kay
> http://www.saxonica.com/
> 
> > -----Original Message-----
> > From: Ed Yau [mailto:eyau@xxxxxxxxxxxxxxx] 
> > Sent: 30 June 2005 18:31
> > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> > Subject: [xsl] Group problem with blank elements
> > 
> > Hiya,
> > 
> > Having loads of trouble with this.  On the face of
> it a really easy
> > problem.
> > I have a bunch of elements like so:
> > 
> > <statement-message>Your account is now seriously
> in arrears.
> > To</statement-message>
> > 
> > <statement-message>avoid further action a payment 
> > of</statement-message>
> > 
> > <statement-message>$82.00 is required immediately.
> > Any</statement-message>
> > 
> > <statement-message>purchases will now be
> declined.</statement-message>
> > 
> > <statement-message>
> > </statement-message>
> > 
> > <statement-message>  More text
> </statement-message>
> > 
> > <statement-message>
> > </statement-message>
> > 
> > <statement-message>
> > </statement-message>
> > 
> > <statement-message>
> > </statement-message>
> > 
> > I want to strip out the empty tags and merge
> adjacent elements as
> > follows:
> > 
> > <statement-message> Your account is now seriously
> in arrears. To avoid
> > further action a payment of
> > 82.00 is required immediately. Any purchases will
> now be
> > declined.</statement-message>
> > 
> > <statement-message>  More text
> </statement-message>
> > 
> > My code at the moment is:
> > <xsl:for-each-group select="statement-message"
> >
>
group-ending-with="statement-message[string-length(normalize-s
> > pace(follo
> > wing-sibling::statement-message[1]))=0]">
> > 	<statement-message>
> > 		<xsl:value-of select="."/>
> > 	</statement-message>
> > </xsl:for-each-group>
> > 
> > My understanding of this is that it should start
> grouping from the 1st
> > statement message, with the groups ending as soon
> as an empty 
> > element is
> > reached.  The empty tags at the end would still be
> there, but at least
> > it should do the merge.  However, the result looks
> like:
> > 
> >      <statement-message>Your account is now
> seriously in arrears.
> > To</statement-message>
> >      <statement-message>
> >      </statement-message>
> >      <statement-message>  More text
> </statement-message>
> >      <statement-message>
> >      </statement-message>
> >      <statement-message>
> >      </statement-message>
> >      <statement-message>
> >      </statement-message>
> > 
> > So where am I going wrong?
> > 
> > Ed
> 
> 



		
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