xslt - Looking up XML attributes with wildcard values, using XSL -

the task of little piece of xsl go through optionref tags in xml file , print id , displayname attributes optionref tags. id´s looked-up in options section find displayname.

and now, problem: of optionref id attributes use wildcards (*) part of values. these id´s cannot looked-up regards displayname, unless first resolved real id´s found in options section. there way extend xsl kind of "globbing"?

i print id´s , displaynames of id´s matching wildcard. instance "a01*" match both "a0101" , "a0102" in options section, these id´s , display names should printed.

this sample of xml:

    <?xml version="1.0" encoding="utf-8"?>     <optionlist xmlns:xsi="http://www.w3.org/2001/xmlschema-instance">         <group>             <optionref id="a0102"/>             <optionref id="a03"/>             <optionref id="a04"/>             <optionref id="a0101"/>             <optionref id="a0102"/>             <optionref id="b01"/>         </group>         <options>             <option displayname="option a02" id="a02"/>             <option displayname="option a03" id="a03"/>             <option displayname="option a0101" id="a0101"/>             <option displayname="option a0102" id="a0102"/>             <option displayname="option a04" id="a04"/>             <option displayname="option b01" id="b01"/>         </options>         <rules>             <opportunities>                 <optionref id="a01*">                     <optionref id="a03"/>                     <optionref id="a04"/>                 </optionref>             </opportunities>             <problems>                 <problem>                     <optionref id="a03"/>                     <optionref id="a04"/>                 </problem>             </problems>         </rules>     </optionlist> 

this xsl:

    <?xml version="1.0" encoding="utf-8"?>     <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/xsl/transform" version="1.0">         <xsl:output method="text" indent="yes"/>          <xsl:key name="option_key" match="option" use="@id"/>          <xsl:template match="optionref" >            <xsl:value-of select="@id"/>:                  <xsl:value-of select="key('option_key', @id)/@displayname"/>         </xsl:template>      </xsl:stylesheet> 

how like:

xslt 1.0

<xsl:stylesheet version="1.0"  xmlns:xsl="http://www.w3.org/1999/xsl/transform"> <xsl:strip-space elements="*"/> <xsl:output method="text" encoding="utf-8"/>  <xsl:key name="option_key" match="option" use="@id"/> <xsl:variable name="options" select="/optionlist/options/option" />  <xsl:template match="optionref">     <xsl:value-of select="@id"/>     <xsl:text>: &#10;</xsl:text>     <xsl:choose>         <xsl:when test="contains(@id, '*')">             <xsl:for-each select="$options[starts-with(@id, substring-before(current()/@id, '*'))]">                 <xsl:value-of select="@displayname"/>                 <xsl:text>&#10;</xsl:text>             </xsl:for-each>         </xsl:when>         <xsl:otherwise>             <xsl:value-of select="key('option_key', @id)/@displayname"/>             <xsl:text>&#10;</xsl:text>         </xsl:otherwise>     </xsl:choose>    <xsl:text>&#10;</xsl:text> </xsl:template>  </xsl:stylesheet> 

applied example input, result be:

a0102:  option a0102  a03:  option a03  a04:  option a04  a0101:  option a0101  a0102:  option a0102  b01:  option b01  a01*:  option a0101 option a0102  a03:  option a03  a04:  option a04