Re: [xsl] Aligning/merging two sequences

Subject: Re: [xsl] Aligning/merging two sequences
From: Martin Honnen <Martin.Honnen@xxxxxx>
Date: Thu, 30 Sep 2010 20:10:58 +0200
Martin Honnen wrote:
Markus Flatscher wrote:

I.e., for each input1//w, @n should be copied to the nearest following sibling <w> in input2 that matches .; <w>s in input2 that aren't in input1 should be flagged as "skipped".


Here is a second attempt, more like what I wanted to implement


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

<xsl:param name="inp1" as="xs:string" select="'input1.xml'"/>
<xsl:variable name="input1" as="element(input1)" select="document($inp1)/input1"/>


<xsl:output method="xml" indent="yes"/>

  <xsl:template match="input2">
    <output>
      <xsl:apply-templates select="w[1]">
        <xsl:with-param name="skipped" select="0"/>
      </xsl:apply-templates>
    </output>
  </xsl:template>

<xsl:template match="input2/w">
<xsl:param name="skipped" as="xs:integer"/>
<xsl:variable name="pos" as="xs:integer"><xsl:number/></xsl:variable>
<xsl:variable name="match" select="$input1/w[$pos - $skipped][. = current()]"/>
<w n="{if ($match) then $match/@n else 'skipped'}">
<xsl:value-of select="."/>
</w>
<xsl:apply-templates select="following-sibling::w[1]">
<xsl:with-param name="skipped" select="if ($match) then $skipped else $skipped + 1"/>
</xsl:apply-templates>
</xsl:template>


</xsl:stylesheet>



--

	Martin Honnen
	http://msmvps.com/blogs/martin_honnen/

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