<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version='1.0'>

    XSLT Stylesheet DocBook -> LaTeX

    ############################################################################ -->

<xsl:param name="citation.natbib.use" select="'0'"/>

<xsl:param name="citation.natbib.options"/>

<xsl:param name="citation.default.style"/>

<xsl:template name="citation.setup">

  <xsl:if test="$citation.natbib.use!='0'">

    <xsl:text>\usepackage</xsl:text>

    <xsl:if test="$citation.natbib.options!=''">

      <xsl:text>[</xsl:text>

      <xsl:value-of select="$citation.natbib.options"/>

      <xsl:text>]</xsl:text>

    </xsl:if>

    <xsl:text>{natbib}
</xsl:text>

  </xsl:if>

</xsl:template>

     are converted safely to latex strings. Special care about the optional

     enclosing curly braces telling to use this content block [{...}] so that

     you can put some '[...]' in it. -->

<xsl:template name="cite-parse">

  <xsl:param name="macro"/>

  <xsl:variable name="brackets">

    <xsl:choose>

                    contains(substring-after($macro,'[{'),'}]')">

      <xsl:value-of select="'[{ }]'"/>

    </xsl:when>

                    contains(substring-after($macro,'['),']')">

      <xsl:value-of select="'[ ]'"/>

    </xsl:when>

    </xsl:choose>

  </xsl:variable>

  <xsl:choose>

  <xsl:when test="$brackets!=''">

    <xsl:variable name="bs" select="substring-before($brackets,' ')"/>

    <xsl:variable name="be" select="substring-after($brackets,' ')"/>

                  select="substring-before(substring-after($macro,$bs),$be)"/>

    <xsl:value-of select="substring-before($macro,$bs)"/>

    <xsl:value-of select="$bs"/>

    <xsl:call-template name="normalize-scape">

      <xsl:with-param name="string" select="$opt"/>

    </xsl:call-template>

    <xsl:value-of select="$be"/>

    <xsl:call-template name="cite-parse">

                      select="substring-after($macro,concat($bs,$opt,$be))"/>

    </xsl:call-template>

  </xsl:when>

  <xsl:otherwise>

    <xsl:value-of select="$macro"/>

  </xsl:otherwise>

  </xsl:choose>

</xsl:template>

     The citation styles are disabled if natbib is not used -->

<xsl:template match="citation" mode="cite-style">

  <xsl:variable name="pi">

    <xsl:call-template name="pi.dblatex_citestyle"/>

  </xsl:variable>

  <xsl:choose>

  <xsl:when test="$citation.natbib.use='0'">

    <xsl:text>\cite</xsl:text>

  </xsl:when>

                             starts-with(@role,'\Cite'))">

    <xsl:call-template name="cite-parse">

      <xsl:with-param name="macro" select="@role"/>

    </xsl:call-template>

  </xsl:when>

  <xsl:when test="starts-with($pi,'\cite') or starts-with($pi,'\Cite')">

    <xsl:call-template name="cite-parse">

      <xsl:with-param name="macro" select="$pi"/>

    </xsl:call-template>

  </xsl:when>

  <xsl:when test="$citation.default.style!=''">

    <xsl:call-template name="cite-parse">

      <xsl:with-param name="macro" select="$citation.default.style"/>

    </xsl:call-template>

  </xsl:when>

  <xsl:otherwise>

    <xsl:text>\cite</xsl:text>

  </xsl:otherwise>

  </xsl:choose>

</xsl:template>

<xsl:template match="citation">

  <xsl:apply-templates select="." mode="cite-style"/>

  <xsl:text>{</xsl:text>

  <xsl:value-of select="."/>

  <xsl:text>}</xsl:text>

</xsl:template>

</xsl:stylesheet>