Assigning keywords according to their number

Hi,

I am really sorry for bothering you with another problem of mine, but I wasn't 
abler or come to a solution myself so far.

I have the following source document:

...
<stichworte>
        <stichwort>
                <term>Abgerissenes Land</term>
                <nummer>412ff</nummer>
        </stichwort>
        <stichwort>
                <term>Abhandlung der Erbschaft</term>
                <nummer>797</nummer>
                <nummer>798a</nummer>
                <nummer>823</nummer>
        </stichwort>
        <stichwort>
                <term>Abschlagszahlung</term>
                <nummer>1415f</nummer>
                <nummer>1428</nummer>
        </stichwort>
</stichworte>
...
<jur_block id="N12847">
        <zaehlung zaehlungsart="Paragraf">189</zaehlung>
        <absatz>Derjenige, den das Gericht</absatz>
</jur_block>
<jur_block id="N12862">
        <zaehlung zaehlungsart="Paragraf">190</zaehlung>
        <absatz>Eine besonders geeignete</absatz>
</jur_block>
...

I need to assign those <stichwort> elements to their apropriate jur_block 
element accoring to their paragraph number (within <zaehlung 
zaehlungsart="Paragraf">

So I need to check:

* If there is a <stichwort> with a <nummer> matching the value in <zaehlung>  
=> put that keyword in this jur_block

* If there is a <stichwort> with a <nummer> containing an "f", this keyword 
needs to be assigned to the paragraph with substring-before(nummer, 
'f')=zaehlung AND its next following-sibling.

* If there is a <stichwort> with a <nummer> containing "ff", this keyword needs 
to be assigned to the paragraph with substring-before(nummer, 'f')=zaehlung AND 
all of its following-siblings.



Here is the stylesheet I tried....


<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; 
xmlns:ln="http://www.lexisnexis.at/schema/norm"; exclude-result-prefixes="ln  
common" xmlns:common="http://exslt.org/common";>
        <xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
        <xsl:template match="node()| @*">
                <xsl:copy>
                        <xsl:apply-templates select="@* | node()"/>
                </xsl:copy>
        </xsl:template>
        <xsl:template match="ln:jur_block[not(@v_ref) or 
@v_marker='dazu']/ln:zaehlung[(_at_)zaehlungsart='Paragraf']">
                <xsl:variable name="val" select="."/>
                <xsl:variable name="pos" select="position() - 1"/>
                <xsl:variable name="sib" 
select="../preceding-sibling::ln:jur_block[not(@v_ref) or 
@v_marker='dazu'][$pos]/ln:zaehlung[(_at_)zaehlungsart='Paragraf']"/>
                <xsl:copy-of select="."/>
                <!-- Each keyword gets assigned to the current block, when its 
<number> element matches the content of the <zaehlung> element-->
                <xsl:apply-templates select="//ln:stichwort[ln:nummer=$val]"/>
                <!-- Each keyword gets assigned to the current block, when its 
<number> element contains an "f" but the substring-before "f" matches the 
content of the <zaehlung> element-->
                <xsl:apply-templates 
select="//ln:stichwort[ln:nummer=concat($val, 'f')]"/>
                <!-- Each keyword gets assigned to the current block, when its 
<number> element contains an "ff" but the substring-before "ff" matches the 
content of the <zaehlung> element-->
                <xsl:apply-templates 
select="//ln:stichwort[ln:nummer=concat($val, 'ff')]"/>
        
                <xsl:apply-templates 
select="//ln:stichwort[substring-before(ln:nummer, 
'ff')=../preceding-sibling::ln:jur_block/ln:zaehlung"/> 
                <!-- Assign Keywords for <nummer>XXXf</nummer> entries -->
                <xsl:apply-templates 
select="//ln:stichwort[ln:nummer=concat($sib, 'f')]"/>
        </xsl:template>
        <!-- Keywords for clauses are assigned -->
        <xsl:template match="ln:jur_block[parent::ln:jur_block[not(@v_ref) or 
@v_marker='dazu']]/ln:zaehlung[(_at_)zaehlungsart='Absatz']">
                <xsl:variable name="val" select="."/>
                <xsl:variable name="para" 
select="../../ln:zaehlung[(_at_)zaehlungsart='Paragraf']"/>
                <xsl:copy-of select="."/>
                <xsl:apply-templates 
select="//ln:stichwort[ln:nummer=concat($para,'(', $val, ')')]"/>
        </xsl:template>
        <xsl:template match="ln:stichwort">
                <xsl:element name="stichwort" 
namespace="http://www.lexisnexis.at/schema/norm";>
                        <xsl:value-of select="ln:term"/>
                </xsl:element>
        </xsl:template>
        <!-- The following elements should me omitted in the output -->
        <xsl:template match="ln:stichworte"/>
</xsl:stylesheet>


Can you help me?
Thanl you very very much in advance.

Wbr,
Roman


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