compare attribute value : Attribute « XSLT stylesheet « XML

1. XML
2. XSLT stylesheet
3. Attribute

compare attribute value

File: Data.xml
<data>
    <line lid="u1">hello</line>
    <line color="red" lid="u2">hello</line>
    <line color="blue" lid="u3">hello</line>
    <line lid="u4">hello there</line>
    <line color="blue" lid="u5">hello there</line>
    <line color="blue" lid="u6">hello</line>
</data>

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

  <xsl:template match="line">
    <xsl:if test="not(@color = preceding::line/@color)">
      <xsl:copy>
        <xsl:apply-templates select="@*|node()" />
      </xsl:copy>
    </xsl:if>
  </xsl:template>
  <xsl:template match="@*|node()">
    <xsl:copy>
      <xsl:apply-templates select="@*|node()" />
    </xsl:copy>
  </xsl:template>

</xsl:stylesheet>

Output:

<data>
    <line lid="u1">hello</line>
    <line color="red" lid="u2">hello</line>
    <line color="blue" lid="u3">hello</line>
    <line lid="u4">hello there</line>
    
    
</data>

 

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