Memory problem when stokenize big data

         <textdata sep=" &#x000A;&#x000D;">
           5.1 4.9 4.7 4.6 5 5.4 4.6 5 4.4 4.9
           ...
           ...
         </textdata>
           ...
           ...
         <textdata sep=" &#x000A;&#x000D;">
           5.1 4.9 4.7 4.6 5 5.4 4.6 5 4.4 4.9
           ...
           ...
         </textdata>

 <xsl:template match="textdata">
   <data>
   <xsl:for-each select="str:tokenize(.,' &#x000A;&#x000D;')">
     <e>
     <xsl:value-of select="."/>
     </e>
   </xsl:for-each>
   </data>
 </xsl:template>