xml - How to count entries in XSLT? -

i quite new xslt , generate count of participants list of events. xml:

<events>     <event name="christmas"/>     <event name="halloween"/>     <event name="easter"/>     <event name="easter"/> </events> 

what need this:

christmas: 1 participant halloween: 1 participant easter: 2 participants 

can done xslt in way?

thanks help!

try stylesheet, uses muenchian method group event elements @name:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/xsl/transform"> <xsl:output omit-xml-declaration="yes" indent="yes"/> <xsl:strip-space elements="*"/>     <!-- based on      http://stackoverflow.com/a/16509871/2115381      dimitre novatchev     -->      <xsl:key name="keventval" match="event" use="@name"/>  <xsl:template match="*">              <xsl:apply-templates select=          "event[generate-id() = generate-id(key('keventval',@name)[1])]"/> </xsl:template>  <xsl:template match="event">     <xsl:value-of select="@name"/>     <xsl:text>: </xsl:text>     <xsl:value-of select="count(key('keventval',@name))"/>     <xsl:text> participant</xsl:text>     <xsl:if test="count(key('keventval',@name)) > 1 ">         <xsl:text>s</xsl:text>     </xsl:if>     <xsl:text>&#10;</xsl:text> </xsl:template> </xsl:stylesheet> 

which generate following output:

christmas: 1 participant halloween: 1 participant easter: 2 participants