Re: [xsl] grouping like items into one

Subject: Re: [xsl] grouping like items into one
From: Michael Müller-Hillebrand <mmh@xxxxxxxxxxxxx>
Date: Fri, 23 Jan 2009 11:09:38 +0100
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Your requirement looks a lot like xsl:for-each-group.

I wrote a template for DD (or /DD) that handles the border grouping.
If you remove your <xsl:template match="text"> it gives the desired
output. [Created with Kernows XSLT playground feature.]

<xsl:template match="DD">
  <xsl:copy>
    <xsl:for-each-group select="text" group-adjacent="if
(self::text[@border='single']) then 1 else 0">
       <xsl:choose>
          <xsl:when test="current-grouping-key() = 1">
             <span class="border">
                <xsl:apply-templates select="current-group()"
mode="moreStyles"/>
             </span>
          </xsl:when>
          <xsl:otherwise>
             <xsl:apply-templates select="current-group()"
mode="moreStyles"/>
          </xsl:otherwise>
        </xsl:choose>
    </xsl:for-each-group>
  </xsl:copy>
</xsl:template>

- Michael

Am 23.01.2009 um 02:37 schrieb Fred Christian:

I know I have done this with xsl 1.0 before and could figure it out,
but 1.0 is painful :)
So I am trying to figure it out with 2.0 and am getting stuck. I am
running into that "how do I know what to look up if I don't know how
to spell it" jam.
I looked at the xsl:for-each-group element, but I don't think that
will work in this situation.
Someone want to take a whack at it?


I want to group bordered text into one border <span>, but leave italic text ( and other styles ) in individual nodes.

_______Source XML__________________
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<DD>
<text italic="false" border="">a </text>
<text italic="false" border="single">b </text>
<text italic="true" border="single">c </text>
<text italic="true" border="">d </text>
<text italic="false" border="">e </text>
<text italic="false" border="single">f </text>
<text italic="false" border="single">g </text>
<text italic="false" border="">h </text>
<text italic="true" border="single">i </text>
<text italic="true" border="">j </text>
</DD>

_____Current output (formated for readability)________________
a
<span class="border">b </span>
<span class="border"><i>c </i></span>
<i>d </i>
e
<span class="border">f </span>
<span class="border">g </span>
h
<span class="border"><i>i </i></span>
<i>j </i>


____ Desired output (formated for readability) ______________ ____ Note how there is one <span....> around b <i>c </> and around "f g " ___ a <span class="border">b <i>c </i></span> <i>d </i> e <span class="border">f g </span> h <span class="border"></span> <i>i </i> <i>j </i>

_____________ current xsl  _______________
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform
"
  xmlns:xs="http://www.w3.org/2001/XMLSchema";
  xmlns:saxon="http://saxon.sf.net/";
  exclude-result-prefixes="xs saxon">

<xsl:template match="/DD">
  <xsl:apply-templates/>
</xsl:template>

<xsl:template match="text">
  <xsl:choose>
      <xsl:when test="@border='single'">
       <span class="border"><xsl:apply-templates select="."
mode="moreStyles"/></span>
      </xsl:when>
      <xsl:otherwise><xsl:apply-templates select="."
mode="moreStyles"/></xsl:otherwise>
  </xsl:choose>
</xsl:template>

<xsl:template match="text" mode="moreStyles">
  <xsl:choose>
      <xsl:when test="./@italic='true'">
       <i><xsl:apply-templates/></i>
      </xsl:when>
      <xsl:otherwise><xsl:apply-templates/></xsl:otherwise>
  </xsl:choose>
</xsl:template>

</xsl:stylesheet>



-- _______________________________________________________________ Michael M|ller-Hillebrand: Dokumentations-Technologie Adobe Certified Expert, FrameMaker Lvsungen und Training, FrameScript, XML/XSL, Unicode Blog: http://cap-studio.de/ - Tel. +49 (9131) 28747

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