I've implemented the function, see below. It works fine, but I want to know

if it can be improved. Is there a way to write the function more idiomatic?
Shorter? Generalized to be more widely useful?  /Roger

     <!--
     	Create an element for each non-empty token in $line.
     	$line is tokenized using the sequence of symbols denoted
     	by $line-delimiter.
     	For the token at position i, name the element using the
     	string in headers[$i]
    -->
     <xsl:function name="f:line" as="element()*">
     	<xsl:param name="line" as="xs:string" />
     	<xsl:param name="line-delimiter" as="xs:integer+" />
         	<xsl:param name="headers" as="xs:string+" />

<xsl:variable name="tokens" select="tokenize($line,

<xsl:variable name="len" select="count($tokens)" as="xs:integer"

         	<xsl:for-each select="1 to $len">
             		<xsl:variable name="index" select="xs:integer(.)"

<xsl:variable name="value" select="$tokens[position() eq

             		<xsl:choose>
                 		<xsl:when test="$value eq ''"/>
                 		<xsl:otherwise>
                 			<xsl:element name="{$headers[position() eq $index]}">
                         				<xsl:sequence select="$value"/>
                     			</xsl:element>
                 		</xsl:otherwise>
             		</xsl:choose>
         	</xsl:for-each>

</xsl:function>

  <xsl:for-each select="tokenize($line,
codepoints-to-string($line-delimiter))">
    <xsl:if test=". ne ''">
      <xsl:variable name="pos" select="position()"/>
      <xsl:element name="{$headers[$pos]}">
        <xsl:value-of select="."/>
?

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