<?xml version="1.0" encoding="utf-8"?>
<!--
Copyright (C) Igor Sysoev
Copyright (C) Nginx, Inc.
-->
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<!-- return a dirname of an article link -->
<xsl:variable name="DIRNAME"> <xsl:call-template name="dirname"><xsl:with-param select="$LINK" name="path"/></xsl:call-template></xsl:variable>
<xsl:template name="dirname"><xsl:param name="path"/>
<xsl:if test="contains($path, '/')">
<xsl:value-of select=" substring-before($path, '/') "/>
<xsl:text>/</xsl:text>
<xsl:call-template name="dirname"><xsl:with-param select="substring-after($path, '/')" name="path"/></xsl:call-template></xsl:if>
</xsl:template>
<!-- return a path to the root of an article link, i.e., "../../.." -->
<xsl:variable name="ROOT"> <xsl:call-template name="root"><xsl:with-param name="path"> <xsl:value-of select=" substring($DIRNAME, 2) "/> </xsl:with-param></xsl:call-template></xsl:variable>
<xsl:template name="root"><xsl:param name="path"/>
<xsl:if test="contains($path, '/')">
<xsl:text>..</xsl:text>
<xsl:if test="substring-after($path, '/')">
<xsl:text>/</xsl:text>
<xsl:call-template name="root"><xsl:with-param select="substring-after($path, '/')" name="path"/></xsl:call-template></xsl:if>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
