Anonymize GEXF node labels

gistfile1.xslt

<!--
     
     Transform (anonymize) node labels in a GEXF file
    
     Tuija Sonkkila 6.3.2013

-->

<xsl:stylesheet
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:g="http://www.gexf.net/1.2draft" 
  version="2.0">

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

  <xsl:template match="/ | @* | node()">
        <xsl:copy>
                <xsl:apply-templates select="@* | node()" />
        </xsl:copy>
  </xsl:template>

  <xsl:template match="g:node[@label]">
        <!-- Make initials out of fullnames -->
        <xsl:variable name="initials" select="replace(@label, '^(.)[^\s]+\s*(.).*$', '$1$2')"/>
        <xsl:copy>
                <xsl:attribute name="label">
                        <xsl:value-of select="$initials"/>
                </xsl:attribute>
                <xsl:copy-of select="@* except @label"/>
                <xsl:apply-templates select="node()" />
        </xsl:copy>
   </xsl:template>

</xsl:stylesheet>