xslt - XSL - Removing the filename from the path string -

i've got sharepoint problem need with. i'm creating custom itemstyles format output of content query webpart (cqwp) need insert "view all" button output.

view needs point to: http://www.site.com/subsite/doclibrary1/forms/allitems.aspx

all individual files in document library have link of: http://www.site.com/subsite/doclibrary1/filename.doc

so need xsl functions strip filename.doc end of string.

i've tried using substring-before($variable, '.') rid of .doc, need find way use substring-after search last forward slash in series , truncate orphaned filename.

using @mads hansen's post, code resolved problem:

template in itemstyle.xsl

<xsl:template name="impdocs" match="row[@style='impdocs']" mode="itemstyle">     <xsl:variable name="safelinkurl">         <xsl:call-template name="outertemplate.getsafelink">             <xsl:with-param name="urlcolumnname" select="'linkurl'"/>         </xsl:call-template>     </xsl:variable>     <xsl:variable name="viewalllink">         <xsl:call-template name="outertemplate.getcleanurl">             <xsl:with-param name="path" select="@linkurl"/>         </xsl:call-template>     </xsl:variable>     <div class="docviewall">         <a href="{$viewalllink}forms/allitems.aspx" title="view all">view all</a>         <!--any other code need custom itemstyle here-->     </div> </xsl:template> 

template in contentquerymain.xsl

<xsl:template name="outertemplate.getcleanurl">     <xsl:param name="path" />     <xsl:choose>         <xsl:when test="contains($path,'/')">             <xsl:value-of select="substring-before($path,'/')" />             <xsl:text>/</xsl:text>             <xsl:call-template name="outertemplate.getcleanurl">                 <xsl:with-param name="path" select="substring-after($path,'/')" />             </xsl:call-template>         </xsl:when>         <xsl:otherwise />     </xsl:choose> </xsl:template> 

executing stylesheet produces: http://www.site.com/subsite/doclibrary1/

<?xml version="1.0" encoding="utf-8"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/xsl/transform"     version="1.0"> <xsl:template match="/">      <xsl:call-template name="geturl">         <xsl:with-param name="path">http://www.site.com/subsite/doclibrary1/filename.doc</xsl:with-param>     </xsl:call-template> </xsl:template>      <xsl:template name="geturl">         <xsl:param name="path" />         <xsl:choose>             <xsl:when test="contains($path,'/')">                 <xsl:value-of select="substring-before($path,'/')" />                 <xsl:text>/</xsl:text>                 <xsl:call-template name="geturl">                     <xsl:with-param name="path" select="substring-after($path,'/')" />                 </xsl:call-template>             </xsl:when>             <xsl:otherwise />         </xsl:choose>     </xsl:template>  </xsl:stylesheet> 

the geturl template makes recursive call when there "/" characters in string. while there still "/" characters, spits out values before slash, , invokes itself. when reaches last one, stops.