xslt 1.0 How to format output based on a conditional test -

i'm trying read xml file has series of sub-nodes. based on value of 1 of subnodes (within set), want particular output bolded.

here xml example:

<documentationof>   <event>     <effectivetime>       <low value="9/4/2013" />     </effectivetime>   </event> </documentationof> <entry>   <substanceadministration>     <text>       <reference value="">       </reference>     </text>     <effectivetime>       <low value="5/13/2013 12:00:00 am" />       <high value="unk" />     </effectivetime>     <consumable>       <manufacturedproduct>         <manufactueredmaterial>           <code code="" displayname="product 1">           </code>         </manufacturedmaterial>       </manufacturedproduct>     </consumable>   </substanceadministration> </entry> <entry>   <substanceadministration>     <text>       <reference value="">       </reference>     </text>     <effectivetime>       <low value="9/4/2013 12:00:00 am" />       <high value="unk" />     </effectivetime>     <consumable>       <manufacturedproduct>         <manufactueredmaterial>           <code code="" displayname="product 2">           </code>         </manufacturedmaterial>       </manufacturedproduct>     </consumable>   </substanceadministration> </entry> <entry>   <substanceadministration>     <text>       <reference value="">       </reference>     </text>     <effectivetime>       <low value="5/13/2013 12:00:00 am" />       <high value="unk" />     </effectivetime>     <consumable>       <manufacturedproduct>         <manufactueredmaterial>           <code code="" displayname="product 3">           </code>         </manufacturedmaterial>       </manufacturedproduct>     </consumable>   </substanceadministration> </entry> 

i want code/@displayname appear (which can for-each , work) if effectivetime/low/@value today's date (which in documentationof/event/effectivetime/low/@value), want in bold:

product 1 <b>product 2</b> product 3 

here xsl snipped this:

<xsl:for-each select="entry">   <xsl:value-of select="substanceadministration/consumable/manufacturedproduct/manufacturedmaterial/code/@displayname" />   <br /> </xsl:for-each> 

i realize should doing own template, didn't write xsl msyelf , in interests of time, making what's there. however, trying redo in parallel templates (the right way) still need know best way check effectivetime/low/@value make entry bold in output.

thanks in advance help.

here process use.

first create global variable date today.

<xsl:variable name="today" select="//documentationof/event/effectivetime/low/@value"/> 

then can update for-each include call template , span add bold styling to.

<xsl:for-each select="entry">   <xsl:variable name="istoday">     <xsl:call-template name="comparetoday">       <xsl:with-param name="date" select="substanceadministration/effectivetime/low/@value"/>     </xsl:call-template>   </xsl:variable>   <span>     <xsl:if test="$istoday = 'true'">       <xsl:attribute name="style">         <xsl:text>font-weight:bold;</xsl:text>       </xsl:attribute>     </xsl:if>     <xsl:value-of select="substanceadministration/consumable/manufacturedproduct/manufacturedmaterial/code/@displayname" />   </span>   <br /> </xsl:for-each> 

and comparetoday named template compare 2 dates.

<xsl:template name="comparetoday">   <xsl:param name="date"/>   <xsl:if test="substring($date,0,(string-length($date) - 11)) = $today">     <xsl:text>true</xsl:text>   </xsl:if> </xsl:template> 

you notice in above template had take substring of date matches format of today date variable. if format varies 2 need update template convert them both same format before compare them.

after running produces output.

<span>product 1</span><br/> <span style="font-weight:bold;">product 2</span><br/> <span>product 3</span><br/>