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[xsl] Re: Re: Re: Filtering with multiple templates

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> I made some progress on this merge matter. Thanks!
>
> However, we don't know how many results we need to
> merge. It depends on user's selection. So, we need to
> dynamically generate the merge script you suggested
> based on the user's selection.
>
> There might just two(v1 and v2). But it may have more
> than two. So, I'm trying to generate a XSLT
> dynamically to handle this merge by using a java
> program.

Probably you could do without generating a new stylesheet.

If you could gather all merges into a single node-set and pass it as
parameter to the transformation, then you can process all the merges in this
single transformation.

For example, this transformation:

<xsl:stylesheet version="1.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 xmlns:ext="http://exslt.org/common"
 exclude-result-prefixes="ext">

 <xsl:output omit-xml-declaration="yes" indent="yes"/>

  <xsl:param  name="pMerges">
    <Member name="x">
       <Member name="x" _pos="6"/>
    </Member>
    <Member name="x">
       <Member name="y" _pos="3"/>
    </Member>
    <Member name="x">
       <Member name="z" _pos="4"/>
    </Member>
  </xsl:param>

  <xsl:variable name="vMerges"
       select="document('')/*/xsl:param[@name='pMerges']"/>

  <xsl:template match="/">
    <xsl:variable name="vrtfSrtMerges">
      <xsl:for-each select="$vMerges/*">
        <xsl:sort select="Member/@_pos" data-type="number"/>
        <xsl:copy>
          <xsl:copy-of select="@*[not(name()='_pos')]"/>
          <xsl:copy-of select="node()"/>
        </xsl:copy>
      </xsl:for-each>
    </xsl:variable>

    <xsl:call-template name="merge">
      <xsl:with-param name="pMerges"
      select="ext:node-set($vrtfSrtMerges)/*"/>
    </xsl:call-template>

  </xsl:template>

  <xsl:template name="merge">
    <xsl:param name="pMerges" select="/.."/>

    <xsl:for-each select="$pMerges[1]">
    <xsl:copy>
      <xsl:copy-of select="@*"/>
      <xsl:for-each select="$pMerges/*">
        <xsl:copy>
          <xsl:copy-of select="@*[not(name() = '_pos')]"/>
          <xsl:copy-of select="node()"/>
        </xsl:copy>
      </xsl:for-each>
    </xsl:copy>
    </xsl:for-each>
  </xsl:template>
</xsl:stylesheet>


when applied on any source xml (not used), will produce the wanted result:

<Member xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:ext="http://exslt.org/common" name="x">
   <Member name="y"/>
   <Member name="z"/>
   <Member name="x"/>
</Member>


=====
Cheers,

Dimitre Novatchev.
http://fxsl.sourceforge.net/ -- the home of FXSL




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