RE: reordering elements based on...

Jorg,

Here is another solution to your question, very similar in idea to Jarno's but
may be a little simpler to follow depending on your level of comfort with XSLT.
It also has the advantage/disadvantage of being more specific to this problem
where Jarno's was much more generic.

This uses the fact that all groups would contain a <parameter> element with name
"start" (you could just as well use "end") so it matches on all the "start"
<parameters> and then looks for the associated "end" and "text".  It sorts by
number (although as written doesn't output a comment) and the output should
match what you posted.


<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" omit-xml-declaration="yes" indent="yes"/>

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

<xsl:template match="ordering">
  <xsl:copy>
    <xsl:apply-templates select="parameter[starts-with(@name, 'start')]" >
      <xsl:sort select="translate(@name, 'start', '')" data-type="text"
order="ascending" />
    </xsl:apply-templates>
  </xsl:copy>
</xsl:template>

<xsl:template match="parameter">
  <xsl:variable name="curNum" select="translate(@name, 'start', '')" />
  <element>
    <end>
      <xsl:value-of select="../parameter[translate(@name, 'end', '') =
$curNum]/value" />
    </end>
    <xsl:if test="../parameter[translate(@name, 'text', '') = $curNum]/value">
      <text>
        <xsl:value-of select="../parameter[translate(@name, 'text', '') =
$curNum]/value" />
      </text>
    </xsl:if>
    <start>
      <xsl:value-of select="value" />
    </start>
  </element>
</xsl:template>

</xsl:stylesheet>


Input:
<?xml version="1.0" ?>
<ordering>
  <parameter name="start2">
    <value>3000</value>
  </parameter>
  <parameter name="text2">
    <value>texthere</value>
  </parameter>
  <parameter name="end2">
    <value>4000</value>
  </parameter>
  <parameter name="end1">
    <value>2000</value>
  </parameter>
  <parameter name="start1">
    <value>1000</value>
  </parameter>
</ordering>

Output:
<ordering>
  <element>
    <end>2000</end>
    <start>1000</start>
  </element>
  <element>
    <end>4000</end>
    <text>texthere</text>
    <start>3000</start>
  </element>
</ordering>

Hope this helps.

-Peter


-----Original Message-----
From: Jorg Heymans [mailto:Jorg.Heymans@xxxxxxxxxx]
Sent: Thursday, July 24, 2003 3:49 AM
To: XSL-List@xxxxxxxxxxxxxxxxxxxxxx
Subject:  reordering elements based on...


Hi list, 
 
(This one is doing my head in)
 
Say I have following input doc (ordering of the parameter nodes can be
random)
 
<parameter name="start2">
<value>3000</value>
</parameter>
<parameter name="text2">
<value>texthere</value>
</parameter>
<parameter name="end2">
<value>4000</value>
</parameter>
<parameter name="end1">
<value>2000</value>
</parameter>
<parameter name="start1">
<value>1000</value>
</parameter>
 
 
The number suffix of the name attribute value in the parameter node should
be used as grouping.
I would like to get following structure. 
 
<!- parameters with ending 1 grouped into one node-->
<element>
            <end>2000</end>
            <start>1000</start>
</element>
 
<!- parameters with ending 2 grouped into one node-->
<element>
            <end>4000</end>
            <text>texthere</text>
            <start>3000</start>
</element>
 
Is this doable at all? Or am I abusing XSL for what it can/should do? 
 
Regards
Jorg Heymans

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