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

    XSLT Stylesheet DocBook -> LaTeX 

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

<xsl:param name="tex.math.in.alt" select="'latex'"/>

<xsl:param name="alt.use" select="0"/>

<xsl:param name="equation.default.position">[H]</xsl:param>

<xsl:template match="inlineequation|informalequation" name="equation">

  <xsl:choose>

  <xsl:when test="alt and $tex.math.in.alt='latex'">

    <xsl:apply-templates select="alt" mode="latex"/>

  </xsl:when>

  <xsl:when test="alt and (count(child::*)=1 or $alt.use='1')">

    <xsl:apply-templates select="alt"/>

  </xsl:when>

  <xsl:otherwise>

    <xsl:apply-templates select="*[not(self::alt)]"/>

  </xsl:otherwise>

  </xsl:choose>

</xsl:template>

<xsl:template match="equation">

  <xsl:variable name="delim">

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

      <xsl:with-param name="node" select="descendant::alt"/>

    </xsl:call-template>

  </xsl:variable>

  <xsl:choose>

  <xsl:when test="title">

    <xsl:text>
\begin{dbequation}</xsl:text>

    <xsl:choose>

      <xsl:when test="@floatstyle != ''">

        <xsl:value-of select="@floatstyle"/>

      </xsl:when>

      <xsl:otherwise>

        <xsl:value-of select="$equation.default.position"/>

      </xsl:otherwise>

    </xsl:choose>

    <xsl:text>
</xsl:text>

    <xsl:call-template name="equation"/>

    <xsl:text>
\caption{</xsl:text>

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

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

    </xsl:call-template>

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

    <xsl:call-template name="label.id"/>

    <xsl:text>
\end{dbequation}
</xsl:text>

  </xsl:when>

  <xsl:when test="$delim='user'">

    <xsl:call-template name="equation"/>

  </xsl:when>

  <xsl:otherwise>

    <xsl:text>
\begin{equation}
</xsl:text>

    <xsl:call-template name="label.id"/>

    <xsl:call-template name="equation"/>

    <xsl:text>
\end{equation}
</xsl:text>

  </xsl:otherwise>

  </xsl:choose>

</xsl:template>

<xsl:template match="alt|mathphrase">

  <xsl:apply-templates/>

</xsl:template>

<xsl:template match="equation/title"/>

<xsl:template match="alt" mode="latex">

  <xsl:variable name="delim">

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

  </xsl:variable>

  <xsl:variable name="tex">

    <xsl:variable name="text" select="normalize-space(.)"/>

    <xsl:variable name="len" select="string-length($text)"/>

    <xsl:choose>

    <xsl:when test="$delim='user'">

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

    </xsl:when>

    <xsl:when test="ancestor::equation[not(child::title)]">

      <xsl:choose>

                      substring($text,$len,$len)='$'">

        <xsl:copy-of select="substring($text, 2, $len - 2)"/>

      </xsl:when>

                       substring($text,$len - 1,$len)='\]') or

                      (starts-with($text,'\(') and

                       substring($text,$len - 1,$len)='\)')">

        <xsl:copy-of select="substring($text, 3, $len - 4)"/>

      </xsl:when>

      <xsl:otherwise>

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

      </xsl:otherwise>

      </xsl:choose>

    </xsl:when>

                    ancestor::informalequation or

                    ancestor::inlineequation">

      <xsl:choose>

                       substring($text,$len - 1,$len)='\]') or

                      (starts-with($text,'\(') and

                       substring($text,$len - 1,$len)='\)') or

                      (starts-with($text,'$') and

                       substring($text,$len,$len)='$')">

        <xsl:copy-of select="$text"/>

      </xsl:when>

      <xsl:otherwise>

        <xsl:copy-of select="concat('$', $text, '$')"/>

      </xsl:otherwise>

      </xsl:choose>

    </xsl:when>

    <xsl:otherwise/>

    </xsl:choose>

  </xsl:variable>

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

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

  </xsl:call-template>

</xsl:template>

</xsl:stylesheet>