[xsl] XSLT Solution for hyphenation

Hi list,

I have this project that applies hyphenation to an XML document using a 
list of words as a reference. The list of words can reach up to a 
million entries.
My XSLT solution was having a template that matches text() nodes then 
insert hyphens to the matching words that are in the list. However the 
transformation takes to long to finish even for a relatively small file 
(around 1mb). Is there anyway to speed this or is there a better solution?
Here's my stylesheet:

<xsl:template match="/">
   <xsl:apply-templates/>
</xsl:template>
<xsl:template match="@*|element()|comment()|processing-instruction()">
   <xsl:copy>
       <xsl:apply-templates select="@*|node()"/>
   </xsl:copy>
</xsl:template>
<xsl:template match="text()">
   <xsl:variable name="str" select="."/>
   <xsl:variable name="searchStrs" as="xs:string*" 
select="$search-words[matches($str,.)]/replace(.,'[.\\?*+{}()\[\]\^\$&#x007C;]', 
'\\$0')"/>
   <xsl:value-of select="ati:replace-all($str,$searchStrs,$replaceStr)"/>
</xsl:template>
<xsl:function name="ati:replace-all">
   <xsl:param name="input" as="xs:string"/>
   <xsl:param name="words-to-replace" as="xs:string*"/>
   <xsl:sequence select="if (exists($words-to-replace)) then 
ati:replace-all(replace($input, $words-to-replace[1], 
key('replace',$words-to-replace[1],$search-words)),remove($words-to-replace,1)) 
else $input"/>
</xsl:function>

heres a sample of the look-up table:

<root>
   <wordlist>
       <entry>
           <search>abaissassent</search>
           <replace>abais&#x00AD;sassent</replace>
       </entry>
       <entry>
           <search>abaissèrent</search>
           <replace>abais&#x00AD;sèrent</replace>
       </entry>
       <entry>
           <search>abandonnent</search>
           <replace>aban&#x00AD;donnent</replace>
       </entry>
   </wordlist>
</root>

so if i have a "abaissassent" in a text() node this will be replaced 
with "aban&#x00AD;donnent".
--
*Jeff*

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