Conditionally enclosing something in multiple elements

I'm using XT to output HTML 4.0.
Is there a more elegant solution to the following problem, using just one
template?

1. If attribute 'weight' of element 'foo' = 'bold', wrap value of <bar> in
<b>...</b>
2. If attribute 'style' of element 'foo' = 'italic', wrap same thing in
<i>...</i>
3. Do both if necessary

Example:

<xsl:template name="Format_Some_Text">
    <xsl:choose>
        <xsl:when test="foo/@weight='bold' and foo/@style='italic'">
            <b><i><xsl:value-of select="bar"/></i></b>
        </xsl:when>
        <xsl:when test="foo/@weight='bold'>
            <b><xsl:value-of select="bar"/></b>
        </xsl:when>
        <xsl:when test="foo/@style='italic'>
            <i><xsl:value-of select="bar"/></i>
        </xsl:when>
        <xsl:otherwise>
            <xsl:value-of select="bar"/>
        </xsl:otherwise>
    </xsl:choose>
</xsl:template>

This is ugly in that I have to account for every combination of possible
enclosing elements, of which there will be more than just the two I show in
this example. How else can one approach this? It seems like there must be
another way, but I'm short-circuiting as I try to think of what it may be.


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