that the application i'm working on requires
an xml:lang attribute for labels like skos:altLabel or skos:prefLabel.

is there a way (for a complete xsl newbie) to add such an xml:lang
attribute to labels that don't have one and leave the rest of
the thesaurus as it is with xsl?

t:\ftemp>type jurgen.xml
  <skos:Concept rdf:nodeID="R0386"
                xmlns:skos="urn:X-skos" xmlns:rdf="urn:X-rdf">
    <skos:altLabel>Economic recession</skos:altLabel>
    <skos:altLabel>Depression, Economic</skos:altLabel>
    <skos:related rdf:nodeID="R0392" />
    <skos:related rdf:nodeID="R0174" />
    <skos:inScheme rdf:nodeID="apais" />
    <skos:related rdf:nodeID="R1419" />
    <skos:altLabel>Recession, Economic</skos:altLabel>
    <skos:prefLabel>Economic depression</skos:prefLabel>
    <skos:subjectIndicator
rdf:resource="http://www.nla.gov.au/apais/thesaurus/h
tml/R0386.html" />
  </skos:Concept>

t:\ftemp>xslt jurgen.xml jurgen.xsl
<?xml version="1.0"
encoding="utf-8"?><skos:Concept xmlns:skos="urn:X-skos" xmln
s:rdf="urn:X-rdf" xml:lang="en" rdf:nodeID="R0386">
    <skos:altLabel xml:lang="en">Economic recession</skos:altLabel>
    <skos:altLabel xml:lang="en">Depression, Economic</skos:altLabel>
    <skos:related xml:lang="en" rdf:nodeID="R0392"/>
    <skos:related xml:lang="en" rdf:nodeID="R0174"/>
    <skos:inScheme xml:lang="en" rdf:nodeID="apais"/>
    <skos:related xml:lang="en" rdf:nodeID="R1419"/>
    <skos:altLabel xml:lang="en">Recession, Economic</skos:altLabel>
    <skos:prefLabel xml:lang="en">Economic depression</skos:prefLabel>
    <skos:subjectIndicator xml:lang="en"
rdf:resource="http://www.nla.gov.au/apa
is/thesaurus/html/R0386.html"/>
  </skos:Concept>
t:\ftemp>type jurgen.xsl
<?xml version="1.0" encoding="US-ASCII"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                version="1.0">

<xsl:template match="*[not(@xml:lang)]">
  <xsl:copy>
    <xsl:attribute name="xml:lang">en</xsl:attribute>
    <xsl:apply-templates select="@*|node()"/>
  </xsl:copy>
</xsl:template>

<xsl:template match="@*|node()"><!--identity for all other nodes-->
  <xsl:copy>
    <xsl:apply-templates select="@*|node()"/>
  </xsl:copy>
</xsl:template>

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