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<?xml version="1.0"?>

<!DOCTYPE xsl:stylesheet [

<!ENTITY primary   'normalize-space(concat(primary/@sortas, primary[not(@sortas) or @sortas = ""]))'>

<!ENTITY secondary 'normalize-space(concat(secondary/@sortas, secondary[not(@sortas) or @sortas = ""]))'>

<!ENTITY tertiary  'normalize-space(concat(tertiary/@sortas, tertiary[not(@sortas) or @sortas = ""]))'>

<!ENTITY sep '" "'>

<!-- Documents using the kimber index method must have a lang attribute -->

<!-- Only one of these should be present in the entity -->

<!ENTITY scope 'count(ancestor::node()|$scope) = count(ancestor::node())

                and ($role = @role or $type = @type or

                (string-length($role) = 0 and string-length($type) = 0))'>

]>

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

                xmlns:fo="http://www.w3.org/1999/XSL/Format"

                xmlns:rx="http://www.renderx.com/XSL/Extensions"

                xmlns:axf="http://www.antennahouse.com/names/XSL/Extensions"

                xmlns:i="urn:cz-kosek:functions:index"

                xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0"

                xmlns:func="http://exslt.org/functions"

                xmlns:exslt="http://exslt.org/common"

                extension-element-prefixes="func exslt"

                exclude-result-prefixes="func exslt i l"

                version="1.0">

<!-- ********************************************************************

     $Id$

     ********************************************************************

     This file is part of the DocBook XSL Stylesheet distribution.

     See ../README or http://docbook.sf.net/ for copyright

     copyright and other information.

     ******************************************************************** -->

<!-- ==================================================================== -->

<!-- The "kosek" method contributed by Jirka Kosek. -->

<xsl:include href="../common/autoidx-kosek.xsl"/>

<xsl:template name="generate-kosek-index">

  <xsl:param name="scope" select="NOTANODE"/>

  <xsl:variable name="vendor" select="system-property('xsl:vendor')"/>

  <xsl:if test="contains($vendor, 'libxslt')">

    <xsl:message terminate="yes">

      <xsl:text>ERROR: the 'kosek' index method does not </xsl:text>

      <xsl:text>work with the xsltproc XSLT processor.</xsl:text>

    </xsl:message>

  </xsl:if>

  <xsl:if test="contains($vendor, 'Saxonica')">

    <xsl:message terminate="yes">

      <xsl:text>ERROR: the 'kosek' index method does not </xsl:text>

      <xsl:text>work with the Saxon 8 XSLT processor.</xsl:text>

    </xsl:message>

  </xsl:if>

  <xsl:if test="not(function-available('exslt:node-set') or

                    function-available('exslt:nodeSet'))">

    <xsl:message terminate="yes">

      <xsl:text>ERROR: the 'kosek' index method requires the </xsl:text>

      <xsl:text>exslt:node-set() function. Use a processor that </xsl:text>

      <xsl:text>has it, or use a different index method.</xsl:text>

    </xsl:message>

  </xsl:if>

  <xsl:if test="not(function-available('i:group-index'))">

    <xsl:message terminate="yes">

      <xsl:text>ERROR: the 'kosek' index method requires the&#xA;</xsl:text>

      <xsl:text>index extension functions be imported:&#xA;</xsl:text>

      <xsl:text>  xsl:import href="common/autoidx-kosek.xsl"</xsl:text>

    </xsl:message>

  </xsl:if>

  <xsl:variable name="role">

    <xsl:if test="$index.on.role != 0">

      <xsl:value-of select="@role"/>

    </xsl:if>

  </xsl:variable>

  <xsl:variable name="type">

    <xsl:if test="$index.on.type != 0">

      <xsl:value-of select="@type"/>

    </xsl:if>

  </xsl:variable>

  <xsl:variable name="terms"

                select="//indexterm[count(.|key('group-code',

                                          i:group-index(&primary;))

                                          [&scope;][1]) = 1

                                and not(@class = 'endofrange')]"/>

  <fo:block>

    <xsl:apply-templates select="$terms" mode="index-div-kosek">

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

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

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

      <xsl:sort select="i:group-index(&primary;)" data-type="number"/>

    </xsl:apply-templates>

  </fo:block>

</xsl:template>

<xsl:template match="indexterm" mode="index-div-kosek">

  <xsl:param name="scope" select="."/>

  <xsl:param name="role" select="''"/>

  <xsl:param name="type" select="''"/>

  <xsl:variable name="key"

                select="i:group-index(&primary;)"/>

  <xsl:variable name="lang">

    <xsl:call-template name="l10n.language"/>

  </xsl:variable>

  <xsl:if test="key('group-code', $key)[&scope;]

                [count(.|key('primary', &primary;)[&scope;][1]) = 1]">

    <fo:block>

      <xsl:call-template name="indexdiv.title">

        <xsl:with-param name="titlecontent">

          <xsl:choose>

            <xsl:when test="$key = 0">

              <xsl:call-template name="gentext">

                <xsl:with-param name="key" select="'index symbols'"/>

              </xsl:call-template>

            </xsl:when>

            <xsl:otherwise>

              <xsl:value-of select="i:group-letter($key)"/>

            </xsl:otherwise>

          </xsl:choose>

        </xsl:with-param>

      </xsl:call-template>

      <fo:block>

        <xsl:apply-templates select="key('group-code', $key)[&scope;]

                                     [count(.|key('primary', &primary;)

                                     [&scope;][1])=1]"

                             mode="index-primary">

          <xsl:sort select="&primary;" lang="{$lang}"/>

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

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

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

        </xsl:apply-templates>

      </fo:block>

    </fo:block>

  </xsl:if>

</xsl:template>

</xsl:stylesheet>