<?xml version='1.0'?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:doc="http://nwalsh.com/xsl/documentation/1.0"
                exclude-result-prefixes="doc"
                version='1.0'>

<!-- ********************************************************************
     $Id: labels.xsl,v 1.10 2006/06/06 07:09:59 sorin Exp $
     ********************************************************************

     This file is part of the XSL DocBook Stylesheet distribution.
     See ../README or http://nwalsh.com/docbook/xsl/ for copyright
     and other information.

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

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

<!-- label markup -->

<doc:mode mode="label.markup" xmlns="">
<refpurpose>Provides access to element labels</refpurpose>
<refdescription>
<para>Processing an element in the
<literal role="mode">label.markup</literal> mode produces the
element label.</para>
<para>Trailing punctuation is not added to the label.
</para>
</refdescription>
</doc:mode>

<xsl:template match="*" mode="intralabel.punctuation">
  <xsl:text>.</xsl:text>
</xsl:template>

<xsl:template match="*" mode="label.markup">
  <xsl:param name="verbose" select="1"/>
  <xsl:if test="$verbose">
    <xsl:message>
      <xsl:text>Request for label of unexpected element: </xsl:text>
      <xsl:value-of select="name(.)"/>
    </xsl:message>
  </xsl:if>
</xsl:template>

<xsl:template match="set|book" mode="label.markup">
  <xsl:if test="@label">
    <xsl:value-of select="@label"/>
  </xsl:if>
</xsl:template>

<xsl:template match="part" mode="label.markup">
  <xsl:choose>
    <xsl:when test="@label">
      <xsl:value-of select="@label"/>
    </xsl:when>
    <xsl:when test="string($part.autolabel) != 0">
      <xsl:variable name="format">
        <xsl:call-template name="autolabel.format">
          <xsl:with-param name="format" select="$part.autolabel"/>
        </xsl:call-template>
      </xsl:variable>
      <xsl:number from="book" count="part" format="{$format}"/>
    </xsl:when>
  </xsl:choose>
</xsl:template>

<xsl:template match="partintro" mode="label.markup">
  <!-- no label -->
</xsl:template>

<xsl:template match="preface" mode="label.markup">
  <xsl:choose>
    <xsl:when test="@label">
      <xsl:value-of select="@label"/>
    </xsl:when>
    <xsl:when test="string($preface.autolabel) != 0">
      <xsl:if test="$component.label.includes.part.label != 0 and
                      ancestor::part">
        <xsl:variable name="part.label">
          <xsl:apply-templates select="ancestor::part" 
                               mode="label.markup"/>
        </xsl:variable>
        <xsl:if test="$part.label != ''">
          <xsl:value-of select="$part.label"/>
          <xsl:apply-templates select="ancestor::part" 
                               mode="intralabel.punctuation"/>
        </xsl:if>
      </xsl:if>
      <xsl:variable name="format">
        <xsl:call-template name="autolabel.format">
          <xsl:with-param name="format" select="$preface.autolabel"/>
        </xsl:call-template>
      </xsl:variable>
      <xsl:choose>
        <xsl:when test="$label.from.part != 0 and ancestor::part">
          <xsl:number from="part" count="preface" format="{$format}" level="any"/>
        </xsl:when>
        <xsl:otherwise>
          <xsl:number from="book" count="preface" format="{$format}" level="any"/>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:when>
  </xsl:choose>
</xsl:template>

<xsl:template match="chapter" mode="label.markup">
  <xsl:choose>
    <xsl:when test="@label">
      <xsl:value-of select="@label"/>
    </xsl:when>
    <xsl:when test="string($chapter.autolabel) != 0">
      <xsl:if test="$component.label.includes.part.label != 0 and
                      ancestor::part">
        <xsl:variable name="part.label">
          <xsl:apply-templates select="ancestor::part" 
                               mode="label.markup"/>
        </xsl:variable>
        <xsl:if test="$part.label != ''">
          <xsl:value-of select="$part.label"/>
          <xsl:apply-templates select="ancestor::part" 
                               mode="intralabel.punctuation"/>
        </xsl:if>
      </xsl:if>
      <xsl:variable name="format">
        <xsl:call-template name="autolabel.format">
          <xsl:with-param name="format" select="$chapter.autolabel"/>
        </xsl:call-template>
      </xsl:variable>
      <xsl:choose>
        <xsl:when test="$label.from.part != 0 and ancestor::part">
          <xsl:number from="part" count="chapter" format="{$format}" level="any"/>
        </xsl:when>
        <xsl:otherwise>
          <xsl:number from="book" count="chapter" format="{$format}" level="any"/>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:when>
  </xsl:choose>
</xsl:template>

<xsl:template match="appendix" mode="label.markup">
  <xsl:choose>
    <xsl:when test="@label">
      <xsl:value-of select="@label"/>
    </xsl:when>
    <xsl:when test="string($appendix.autolabel) != 0">
      <xsl:if test="$component.label.includes.part.label != 0 and
                      ancestor::part">
        <xsl:variable name="part.label">
          <xsl:apply-templates select="ancestor::part" 
                               mode="label.markup"/>
        </xsl:variable>
        <xsl:if test="$part.label != ''">
          <xsl:value-of select="$part.label"/>
          <xsl:apply-templates select="ancestor::part" 
                               mode="intralabel.punctuation"/>
        </xsl:if>
      </xsl:if>
      <xsl:variable name="format">
        <xsl:call-template name="autolabel.format">
          <xsl:with-param name="format" select="$appendix.autolabel"/>
        </xsl:call-template>
      </xsl:variable>
      <xsl:choose>
        <xsl:when test="$label.from.part != 0 and ancestor::part">
          <xsl:number from="part" count="appendix" format="{$format}" level="any"/>
        </xsl:when>
        <xsl:otherwise>
          <xsl:number from="book|article"
                      count="appendix" format="{$format}" level="any"/>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:when>
  </xsl:choose>
</xsl:template>

<xsl:template match="article" mode="label.markup">
  <xsl:if test="@label">
    <xsl:value-of select="@label"/>
  </xsl:if>
</xsl:template>

<xsl:template match="dedication|colophon" mode="label.markup">
  <xsl:if test="@label">
    <xsl:value-of select="@label"/>
  </xsl:if>
</xsl:template>

<xsl:template match="reference" mode="label.markup">
  <xsl:choose>
    <xsl:when test="@label">
      <xsl:value-of select="@label"/>
    </xsl:when>
    <xsl:when test="string($part.autolabel) != 0">
      <xsl:variable name="format">
        <xsl:call-template name="autolabel.format">
          <xsl:with-param name="format" select="$part.autolabel"/>
        </xsl:call-template>
      </xsl:variable>
      <xsl:number from="book" count="reference" format="{$format}" level="any"/>
    </xsl:when>
  </xsl:choose>
</xsl:template>

<xsl:template match="refentry" mode="label.markup">
  <xsl:if test="@label">
    <xsl:value-of select="@label"/>
  </xsl:if>
</xsl:template>

<xsl:template match="section" mode="label.markup">
  <!-- if this is a nested section, label the parent -->
  <xsl:if test="local-name(..) = 'section'">
    <xsl:variable name="parent.section.label">
      <xsl:call-template name="label.this.section">
        <xsl:with-param name="section" select=".."/>
      </xsl:call-template>
    </xsl:variable>
    <xsl:if test="$parent.section.label != '0'">
      <xsl:apply-templates select=".." mode="label.markup"/>
      <xsl:apply-templates select=".." mode="intralabel.punctuation"/>
    </xsl:if>
  </xsl:if>

  <!-- if the parent is a component, maybe label that too -->
  <xsl:variable name="parent.is.component">
    <xsl:call-template name="is.component">
      <xsl:with-param name="node" select=".."/>
    </xsl:call-template>
  </xsl:variable>

  <!-- does this section get labelled? -->
  <xsl:variable name="label">
    <xsl:call-template name="label.this.section">
      <xsl:with-param name="section" select="."/>
    </xsl:call-template>
  </xsl:variable>

  <xsl:if test="$section.label.includes.component.label != 0
                and $parent.is.component != 0">
    <xsl:variable name="parent.label">
      <xsl:apply-templates select=".." mode="label.markup"/>
    </xsl:variable>
    <xsl:if test="$parent.label != ''">
      <xsl:apply-templates select=".." mode="label.markup"/>
      <xsl:apply-templates select=".." mode="intralabel.punctuation"/>
    </xsl:if>
  </xsl:if>

<!--
  <xsl:message>
    test: <xsl:value-of select="$label"/>, <xsl:number count="section"/>
  </xsl:message>
-->

  <xsl:choose>
    <xsl:when test="@label">
      <xsl:value-of select="@label"/>
    </xsl:when>
    <xsl:when test="$label != 0">      
      <xsl:variable name="format">
        <xsl:call-template name="autolabel.format">
          <xsl:with-param name="format" select="$section.autolabel"/>
        </xsl:call-template>
      </xsl:variable>
      <xsl:number format="{$format}" count="section"/>
    </xsl:when>
  </xsl:choose>
</xsl:template>

<xsl:template match="sect1" mode="label.markup">
  <!-- if the parent is a component, maybe label that too -->
  <xsl:variable name="parent.is.component">
    <xsl:call-template name="is.component">
      <xsl:with-param name="node" select=".."/>
    </xsl:call-template>
  </xsl:variable>

  <xsl:variable name="component.label">
    <xsl:if test="$section.label.includes.component.label != 0
                  and $parent.is.component != 0">
      <xsl:variable name="parent.label">
        <xsl:apply-templates select=".." mode="label.markup"/>
      </xsl:variable>
      <xsl:if test="$parent.label != ''">
        <xsl:apply-templates select=".." mode="label.markup"/>
        <xsl:apply-templates select=".." mode="intralabel.punctuation"/>
      </xsl:if>
    </xsl:if>
  </xsl:variable>


  <xsl:variable name="is.numbered">
    <xsl:call-template name="label.this.section"/>
  </xsl:variable>

  <xsl:choose>
    <xsl:when test="@label">
      <xsl:value-of select="@label"/>
    </xsl:when>
    <xsl:when test="$is.numbered != 0">
      <xsl:variable name="format">
        <xsl:call-template name="autolabel.format">
          <xsl:with-param name="format" select="$section.autolabel"/>
        </xsl:call-template>
      </xsl:variable>
      <xsl:copy-of select="$component.label"/>
      <xsl:number format="{$format}" count="sect1"/>
    </xsl:when>
  </xsl:choose>
</xsl:template>

<xsl:template match="sect2|sect3|sect4|sect5" mode="label.markup">
  <!-- label the parent -->
  <xsl:variable name="parent.section.label">
    <xsl:call-template name="label.this.section">
      <xsl:with-param name="section" select=".."/>
    </xsl:call-template>
  </xsl:variable>
  <xsl:if test="$parent.section.label != '0'">
    <xsl:apply-templates select=".." mode="label.markup"/>
    <xsl:apply-templates select=".." mode="intralabel.punctuation"/>
  </xsl:if>

  <xsl:variable name="is.numbered">
    <xsl:call-template name="label.this.section"/>
  </xsl:variable>

  <xsl:choose>
    <xsl:when test="@label">
      <xsl:value-of select="@label"/>
    </xsl:when>
    <xsl:when test="$is.numbered != 0">
      <xsl:variable name="format">
        <xsl:call-template name="autolabel.format">
          <xsl:with-param name="format" select="$section.autolabel"/>
        </xsl:call-template>
      </xsl:variable>
      <xsl:choose>
        <xsl:when test="local-name(.) = 'sect2'">
          <xsl:number format="{$format}" count="sect2"/>
        </xsl:when>
        <xsl:when test="local-name(.) = 'sect3'">
          <xsl:number format="{$format}" count="sect3"/>
        </xsl:when>
        <xsl:when test="local-name(.) = 'sect4'">
          <xsl:number format="{$format}" count="sect4"/>
        </xsl:when>
        <xsl:when test="local-name(.) = 'sect5'">
          <xsl:number format="{$format}" count="sect5"/>
        </xsl:when>
        <xsl:otherwise>
          <xsl:message>label.markup: this can't happen!</xsl:message>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:when>
  </xsl:choose>
</xsl:template>

<xsl:template match="bridgehead" mode="label.markup">
  <!-- FIXME: could we do a better job here? -->
  <xsl:variable name="contsec"
                select="(ancestor::section
                         |ancestor::simplesect
                         |ancestor::sect1
                         |ancestor::sect2
                         |ancestor::sect3
                         |ancestor::sect4
                         |ancestor::sect5
                         |ancestor::refsect1
                         |ancestor::refsect2
                         |ancestor::refsect3
                         |ancestor::chapter
                         |ancestor::appendix
                         |ancestor::preface)[last()]"/>

  <xsl:apply-templates select="$contsec" mode="label.markup"/>
</xsl:template>

<xsl:template match="refsect1" mode="label.markup">
  <xsl:choose>
    <xsl:when test="@label">
      <xsl:value-of select="@label"/>
    </xsl:when>
    <xsl:when test="$section.autolabel != 0">
      <xsl:variable name="format">
        <xsl:call-template name="autolabel.format">
          <xsl:with-param name="format" select="$section.autolabel"/>
        </xsl:call-template>
      </xsl:variable>
      <xsl:number count="refsect1" format="{$format}"/>
    </xsl:when>
  </xsl:choose>
</xsl:template>

<xsl:template match="refsect2|refsect3" mode="label.markup">
  <!-- label the parent -->
  <xsl:variable name="parent.label">
    <xsl:apply-templates select=".." mode="label.markup"/>
  </xsl:variable>
  <xsl:if test="$parent.label != ''">
    <xsl:apply-templates select=".." mode="label.markup"/>
    <xsl:apply-templates select=".." mode="intralabel.punctuation"/>
  </xsl:if>

  <xsl:choose>
    <xsl:when test="@label">
      <xsl:value-of select="@label"/>
    </xsl:when>
    <xsl:when test="$section.autolabel != 0">
      <xsl:variable name="format">
        <xsl:call-template name="autolabel.format">
          <xsl:with-param name="format" select="$section.autolabel"/>
        </xsl:call-template>
      </xsl:variable>
      <xsl:choose>
        <xsl:when test="local-name(.) = 'refsect2'">
          <xsl:number count="refsect2" format="{$format}"/>
        </xsl:when>
        <xsl:otherwise>
          <xsl:number count="refsect3" format="{$format}"/>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:when>
  </xsl:choose>
</xsl:template>

<xsl:template match="simplesect" mode="label.markup">
  <!-- if this is a nested section, label the parent -->
  <xsl:if test="local-name(..) = 'section'
                or local-name(..) = 'sect1'
                or local-name(..) = 'sect2'
                or local-name(..) = 'sect3'
                or local-name(..) = 'sect4'
                or local-name(..) = 'sect5'">
    <xsl:variable name="parent.section.label">
      <xsl:apply-templates select=".." mode="label.markup"/>
    </xsl:variable>
    <xsl:if test="$parent.section.label != ''">
      <xsl:apply-templates select=".." mode="label.markup"/>
      <xsl:apply-templates select=".." mode="intralabel.punctuation"/>
    </xsl:if>
  </xsl:if>

  <!-- if the parent is a component, maybe label that too -->
  <xsl:variable name="parent.is.component">
    <xsl:call-template name="is.component">
      <xsl:with-param name="node" select=".."/>
    </xsl:call-template>
  </xsl:variable>

  <!-- does this section get labelled? -->
  <xsl:variable name="label">
    <xsl:call-template name="label.this.section">
      <xsl:with-param name="section" select="."/>
    </xsl:call-template>
  </xsl:variable>

  <xsl:if test="$section.label.includes.component.label != 0
                and $parent.is.component != 0">
    <xsl:variable name="parent.label">
      <xsl:apply-templates select=".." mode="label.markup"/>
    </xsl:variable>
    <xsl:if test="$parent.label != ''">
      <xsl:apply-templates select=".." mode="label.markup"/>
      <xsl:apply-templates select=".." mode="intralabel.punctuation"/>
    </xsl:if>
  </xsl:if>

  <xsl:choose>
    <xsl:when test="@label">
      <xsl:value-of select="@label"/>
    </xsl:when>
    <xsl:when test="$label != 0">
      <xsl:variable name="format">
        <xsl:call-template name="autolabel.format">
          <xsl:with-param name="format" select="$section.autolabel"/>
        </xsl:call-template>
      </xsl:variable>
      <xsl:number format="{$format}" count="simplesect"/>
    </xsl:when>
  </xsl:choose>
</xsl:template>

<xsl:template match="qandadiv" mode="label.markup">
  <xsl:variable name="lparent" select="(ancestor::set
                                       |ancestor::book
                                       |ancestor::chapter
                                       |ancestor::appendix
                                       |ancestor::preface
                                       |ancestor::section
                                       |ancestor::simplesect
                                       |ancestor::sect1
                                       |ancestor::sect2
                                       |ancestor::sect3
                                       |ancestor::sect4
                                       |ancestor::sect5
                                       |ancestor::refsect1
                                       |ancestor::refsect2
                                       |ancestor::refsect3)[last()]"/>

  <xsl:variable name="lparent.prefix">
    <xsl:apply-templates select="$lparent" mode="label.markup"/>
  </xsl:variable>

  <xsl:variable name="prefix">
    <xsl:if test="$qanda.inherit.numeration != 0">
      <xsl:if test="$lparent.prefix != ''">
        <xsl:apply-templates select="$lparent" mode="label.markup"/>
        <xsl:apply-templates select="$lparent" mode="intralabel.punctuation"/>
      </xsl:if>
    </xsl:if>
  </xsl:variable>

  <xsl:choose>
    <xsl:when test="$qandadiv.autolabel != 0">
      <xsl:variable name="format">
        <xsl:call-template name="autolabel.format">
          <xsl:with-param name="format" select="$qandadiv.autolabel"/>
        </xsl:call-template>
      </xsl:variable>
      <xsl:value-of select="$prefix"/>
      <xsl:number level="multiple" count="qandadiv" format="{$format}"/>
    </xsl:when>
  </xsl:choose>
</xsl:template>

<xsl:template match="question|answer" mode="label.markup">
  <xsl:variable name="lparent" select="(ancestor::set
                                       |ancestor::book
                                       |ancestor::chapter
                                       |ancestor::appendix
                                       |ancestor::preface
                                       |ancestor::section
                                       |ancestor::simplesect
                                       |ancestor::sect1
                                       |ancestor::sect2
                                       |ancestor::sect3
                                       |ancestor::sect4
                                       |ancestor::sect5
                                       |ancestor::refsect1
                                       |ancestor::refsect2
                                       |ancestor::refsect3)[last()]"/>

  <xsl:variable name="lparent.prefix">
    <xsl:apply-templates select="$lparent" mode="label.markup"/>
  </xsl:variable>

  <xsl:variable name="prefix">
    <xsl:if test="$qanda.inherit.numeration != 0">
      <xsl:choose>
        <xsl:when test="ancestor::qandadiv">
          <xsl:apply-templates select="ancestor::qandadiv[1]" mode="label.markup"/>
          <xsl:apply-templates select="ancestor::qandadiv[1]"
                               mode="intralabel.punctuation"/>
        </xsl:when>
        <xsl:when test="$lparent.prefix != ''">
          <xsl:apply-templates select="$lparent" mode="label.markup"/>
          <xsl:apply-templates select="$lparent" mode="intralabel.punctuation"/>
        </xsl:when>
      </xsl:choose>
    </xsl:if>
  </xsl:variable>

  <xsl:variable name="inhlabel"
                select="ancestor-or-self::qandaset/@defaultlabel[1]"/>

  <xsl:variable name="deflabel">
    <xsl:choose>
      <xsl:when test="$inhlabel != ''">
        <xsl:value-of select="$inhlabel"/>
      </xsl:when>
      <xsl:otherwise>
        <xsl:value-of select="$qanda.defaultlabel"/>
      </xsl:otherwise>
    </xsl:choose>
  </xsl:variable>

  <xsl:variable name="label" select="label"/>

  <xsl:choose>
    <xsl:when test="count($label)>0">
      <xsl:apply-templates select="$label"/>
    </xsl:when>

    <xsl:when test="$deflabel = 'qanda' and local-name(.) = 'question'">
      <xsl:call-template name="gentext">
        <xsl:with-param name="key" select="'Question'"/>
      </xsl:call-template>
    </xsl:when>

    <xsl:when test="$deflabel = 'qanda' and local-name(.) = 'answer'">
      <xsl:call-template name="gentext">
        <xsl:with-param name="key" select="'Answer'"/>
      </xsl:call-template>
    </xsl:when>

    <xsl:when test="$deflabel = 'number' and local-name(.) = 'question'">
      <xsl:value-of select="$prefix"/>
      <xsl:number level="multiple" count="qandaentry" format="1"/>
    </xsl:when>
  </xsl:choose>
</xsl:template>

<xsl:template match="bibliography|glossary|
                     qandaset|index|setindex" mode="label.markup">
  <xsl:if test="@label">
    <xsl:value-of select="@label"/>
  </xsl:if>
</xsl:template>

<xsl:template match="figure|table|example" mode="label.markup">
  <xsl:variable name="pchap"
                select="ancestor::chapter
                        |ancestor::appendix
                        |ancestor::article[ancestor::book]"/>

  <xsl:variable name="prefix">
    <xsl:if test="count($pchap) &gt; 0">
      <xsl:apply-templates select="$pchap" mode="label.markup"/>
    </xsl:if>
  </xsl:variable>

  <xsl:choose>
    <xsl:when test="@label">
      <xsl:value-of select="@label"/>
    </xsl:when>
    <xsl:otherwise>
      <xsl:choose>
        <xsl:when test="$prefix != ''">
            <xsl:apply-templates select="$pchap" mode="label.markup"/>
            <xsl:apply-templates select="$pchap" mode="intralabel.punctuation"/>
          <xsl:number format="1" from="chapter|appendix" level="any"/>
        </xsl:when>
        <xsl:otherwise>
          <xsl:number format="1" from="book|article" level="any"/>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:otherwise>
  </xsl:choose>
</xsl:template>

<xsl:template match="procedure" mode="label.markup">
  <xsl:variable name="pchap"
                select="ancestor::chapter
                        |ancestor::appendix
                        |ancestor::article[ancestor::book]"/>

  <xsl:variable name="prefix">
    <xsl:if test="count($pchap) &gt; 0">
      <xsl:apply-templates select="$pchap" mode="label.markup"/>
    </xsl:if>
  </xsl:variable>

  <xsl:choose>
    <xsl:when test="@label">
      <xsl:value-of select="@label"/>
    </xsl:when>
    <xsl:when test="$formal.procedures = 0">
      <!-- No label -->
    </xsl:when>
    <xsl:otherwise>
      <xsl:choose>
        <xsl:when test="count($pchap)>0">
          <xsl:if test="$prefix != ''">
            <xsl:apply-templates select="$pchap" mode="label.markup"/>
            <xsl:apply-templates select="$pchap" mode="intralabel.punctuation"/>
          </xsl:if>
          <xsl:number count="procedure[title]" format="1" 
                      from="chapter|appendix" level="any"/>
        </xsl:when>
        <xsl:otherwise>
          <xsl:number count="procedure[title]" format="1" 
                      from="book|article" level="any"/>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:otherwise>
  </xsl:choose>
</xsl:template>

<xsl:template match="equation" mode="label.markup">
  <xsl:variable name="pchap"
                select="ancestor::chapter
                        |ancestor::appendix
                        |ancestor::article[ancestor::book]"/>

  <xsl:variable name="prefix">
    <xsl:if test="count($pchap) &gt; 0">
      <xsl:apply-templates select="$pchap" mode="label.markup"/>
    </xsl:if>
  </xsl:variable>

  <xsl:choose>
    <xsl:when test="@label">
      <xsl:value-of select="@label"/>
    </xsl:when>
    <xsl:otherwise>
      <xsl:choose>
        <xsl:when test="count($pchap)>0">
          <xsl:if test="$prefix != ''">
            <xsl:apply-templates select="$pchap" mode="label.markup"/>
            <xsl:apply-templates select="$pchap" mode="intralabel.punctuation"/>
          </xsl:if>
          <xsl:number format="1" count="equation[title]" from="chapter|appendix" level="any"/>
        </xsl:when>
        <xsl:otherwise>
          <xsl:number format="1" count="equation[title]" from="book|article" level="any"/>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:otherwise>
  </xsl:choose>
</xsl:template>

<xsl:template match="orderedlist/listitem" mode="label.markup">
  <xsl:variable name="numeration">
    <xsl:call-template name="list.numeration">
      <xsl:with-param name="node" select="parent::orderedlist"/>
    </xsl:call-template>
  </xsl:variable>

  <xsl:variable name="type">
    <xsl:choose>
      <xsl:when test="$numeration='arabic'">1</xsl:when>
      <xsl:when test="$numeration='loweralpha'">a</xsl:when>
      <xsl:when test="$numeration='lowerroman'">i</xsl:when>
      <xsl:when test="$numeration='upperalpha'">A</xsl:when>
      <xsl:when test="$numeration='upperroman'">I</xsl:when>
      <!-- What!? This should never happen -->
      <xsl:otherwise>
        <xsl:message>
          <xsl:text>Unexpected numeration: </xsl:text>
          <xsl:value-of select="$numeration"/>
        </xsl:message>
        <xsl:value-of select="1."/>
      </xsl:otherwise>
    </xsl:choose>
  </xsl:variable>

  <xsl:variable name="item-number">
    <xsl:call-template name="orderedlist-item-number"/>
  </xsl:variable>

  <xsl:number value="$item-number" format="{$type}"/>
</xsl:template>

<xsl:template match="abstract" mode="label.markup">
  <!-- nop -->
</xsl:template>

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

<xsl:template name="label.this.section">
  <xsl:param name="section" select="."/>

  <xsl:variable name="level">
    <xsl:call-template name="section.level"/>
  </xsl:variable>

  <xsl:choose>
    <xsl:when test="$level &lt;= $section.autolabel.max.depth">      
      <xsl:value-of select="$section.autolabel"/>
    </xsl:when>
    <xsl:otherwise>0</xsl:otherwise>
  </xsl:choose>
</xsl:template>

<doc:template name="label.this.section" xmlns="">
<refpurpose>Returns true if $section should be labelled</refpurpose>
<refdescription>
<para>Returns true if the specified section should be labelled.
By default, this template returns zero unless 
the section level is less than or equal to the value of the
<literal>$section.autolabel.max.depth</literal> parameter, in
which case it returns
<literal>$section.autolabel</literal>.
Custom stylesheets may override it to get more selective behavior.</para>
</refdescription>
</doc:template>

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

<xsl:template name="default.autolabel.format">
  <xsl:param name="context" select="."/>
  <xsl:choose>
    <xsl:when test="local-name($context) = 'appendix'">
      <xsl:value-of select="'A'"/>
    </xsl:when>
    <xsl:when test="local-name($context) = 'part'">
      <xsl:value-of select="'I'"/>
    </xsl:when>
    <xsl:otherwise>1</xsl:otherwise>
  </xsl:choose>  
</xsl:template>
  
<xsl:template name="autolabel.format">
  <xsl:param name="context" select="."/>
  <xsl:param name="format"/>

  <xsl:choose>
    <xsl:when test="string($format) != 0">
      <xsl:choose>
        <xsl:when test="$format='arabic' or $format='1'">1</xsl:when>
        <xsl:when test="$format='loweralpha' or $format='a'">
          <xsl:value-of select="'a'"/>
        </xsl:when>
        <xsl:when test="$format='lowerroman' or $format='i'">
          <xsl:value-of select="'i'"/>
        </xsl:when>
        <xsl:when test="$format='upperalpha' or $format='A'">
          <xsl:value-of select="'A'"/>
        </xsl:when>
        <xsl:when test="$format='upperroman' or $format='I'">
          <xsl:value-of select="'I'"/>
        </xsl:when>      
        <xsl:otherwise>
          <xsl:message>
            <xsl:text>Unexpected </xsl:text><xsl:value-of select="local-name(.)"/><xsl:text>.autolabel value: </xsl:text>
            <xsl:value-of select="$format"/><xsl:text>; using default.</xsl:text>
          </xsl:message>
          <xsl:call-template name="default.autolabel.format"/>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:when>
  </xsl:choose>
</xsl:template>

<doc:template name="autolabel.format" xmlns="">
<refpurpose>Returns format for autolabel parameters</refpurpose>
<refdescription>
<para>Returns format passed as parameter if non zero. Supported
  format are 'arabic' or '1', 'loweralpha' or 'a', 'lowerroman' or 'i', 
  'uppoerlapha' or 'A', 'upperroman' or 'I'. If its not one of these then 
  returns the default format.</para>
</refdescription>
</doc:template>

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

</xsl:stylesheet>
