XSLT custom date formatting - GSA -

i trying format xslt in dynamic navigation render dates in particular format. code generates following error:

 "an unknown error occurred." 

xslt code is:

<xsl:template name="customdate-dn">     <xsl:param name="d"/>     <xsl:value-of select="format-date($d, '[d01] [mn,*-3] [y0001]', 'en', (), ())"/> </xsl:template>  <xsl:template match="pv" mode="display_value">     <xsl:param name="js_escape"/>     <xsl:choose>         <!-- customizations - fancy date -->         <xsl:when test="../@t = 4">             <xsl:call-template name="customdate-dn">                 <xsl:with-param name="d" select="@v"/>             </xsl:call-template>         </xsl:when>         <!-- end of customization -->     ... 

if replace

 <xsl:value-of select="format-date($d, '[d01] [mn,*-3] [y0001]', 'en', (), ())"/> 

with

<xsl:value-of select="$d"></xsl:value-of> 

it seems work, date in wrong format.

i appreciate help. thanks.

update: date looks dd/mm/yyyy. using xslt 2.0. think problem passing string format-date function. function requires date. not sure how convert dd/mm/yyyy string date.

a string represents date in format dd/mm/yyyy not valid xs:date , cannot used in format-date().

but can parse string , convert iso 8601 date, is valid xs:date type. 1 way achieve in xslt 2.0 use <xsl:analyze-string> extract year, month , day parts regular expression. can rebuild date in iso 8601 format , store result in new variable can pass format-date():

<xsl:template name="customdate-dn">     <xsl:param name="d"/>      <xsl:variable name="iso-date">         <xsl:analyze-string select="$d" regex="(\d{{1,2}})/(\d{{1,2}})/(\d{{4}})">             <xsl:matching-substring>                 <xsl:value-of select="regex-group(3)"/>                 <xsl:text>-</xsl:text>                 <xsl:value-of select="regex-group(2)"/>                 <xsl:text>-</xsl:text>                 <xsl:value-of select="regex-group(1)"/>             </xsl:matching-substring>         </xsl:analyze-string>     </xsl:variable>      <xsl:value-of select="format-date($iso-date, '[d01] [mn,*-3] [y0001]', 'en', (), ())"/> </xsl:template>