RE: Please help: section labels and other XSL woes

Ok, so I'll dare to paste a code snippet that handles
the section labels + label separators
:
<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>

If the last number is not a parent, why the dot is
added after it? 

Regarding the TOC in parts: I didn't find a piece of
code that is dedicated to generating the TOC in parts.

Thanks for any advice!

Nancy