xml - XSL - How to do one thing if node has child, otherwise do another -

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i'm farely new xslt , have tried various method check whether node has child. have following:

<xsl:if test="child::list">

the above part works, problem have tried using when in method otherwise, not work. looked so:

<xsl:when test="child::list">

which i'm guessing wrong doesn't work.

the code below:

<xsl:for-each select="td"> <td>     <xsl:when test="child::list">         <table cellpadding='0' cellspacing='0'>             <thead>                 <tr>                     <xsl:for-each select="list/item/table/thead/tr/th">                         <th><xsl:value-of select="self::node()[text()]"/></th>                     </xsl:for-each>                 </tr>                 <xsl:for-each select="list/item/table/tbody/tr">                     <tr>                         <xsl:for-each select="td">                             <td><xsl:value-of select="self::node()[text()]"/></td>                         </xsl:for-each>                     </tr>                 </xsl:for-each>             </thead>         </table>     </xsl:when>     <xsl:otherwise>         <xsl:value-of select="self::node()[text()]"/>     </xsl:otherwise> </td> </xsl:for-each>

any appreciated...

xsl:when , xsl:otherwise have inside of xsl:choose:

<xsl:choose>   <xsl:when test="...">     <!-- 1 thing -->   </xsl:when>   <xsl:otherwise>     <!-- else -->   </xsl:otherwise>  </xsl:choose>

but should here utilize templates:

  <xsl:template match="something">     ....     <xsl:apply-templates select="td" mode="list" />     ....   </xsl:template>    <xsl:template match="td" mode="list">     <xsl:value-of select="."/>   </xsl:template>    <xsl:template match="td[list]" mode="list">     <table cellpadding='0' cellspacing='0'>       <thead>         <xsl:apply-templates select='list/item/table/thead/tr' />         <xsl:apply-templates select="list/item/table/tbody/tr" />       </thead>     </table>   </xsl:template>    <xsl:template match="th | td">     <xsl:copy>       <xsl:value-of select="." />     </xsl:copy>   </xsl:template>    <xsl:template match="tr">     <xsl:copy>       <xsl:apply-templates select="th | td" />     </xsl:copy>   </xsl:template>

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