<xsl:choose>
<xsl:when test="string-length(@val)=0"/>
<xsl:when test="string-length(@val)=1"><xsl:value-of select="@val"/></xsl:when>
<xsl:choose>
<xsl:when test="string-length(@val)=0"/>
<xsl:when test="string-length(@val)=1"><xsl:value-of select="@val"/></xsl:when>