https://p2p.wrox.com/xslt/62235-stripping-last-x-characters.html
<xsl:template match="title"> <xsl:call-template name="strip-end-characters"> <xsl:with-param name="text" select="."/> <xsl:with-param name="strip-count" select="3"/> </xsl:call-template> </xsl:template> <xsl:template name="strip-end-characters"> <xsl:param name="text"/> <xsl:param name="strip-count"/> <xsl:value-of select="substring($text, 1, string-length($text) - $strip-count)"/> </xsl:template>