XML/XSLT stylesheet/cast

"1995-04-21" castable as xs:date: true

File: Transform.xslt
<?xml version="1.0"?>
<xsl:stylesheet version="2.0" 
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xsl:output method="text"/>
  <xsl:template match="/">
    <xsl:text>"1995-04-21" castable as xs:date: </xsl:text>
    <xsl:value-of select=""1995-04-21" castable as xs:date"/>
  </xsl:template>
</xsl:stylesheet>

Output:
"1995-04-21" castable as xs:date: true

"3" castable as xs:integer: true

<?xml version="1.0"?>
<xsl:stylesheet version="2.0" 
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xsl:output method="text"/>
  <xsl:template match="/">
    <xsl:text>"3" castable as xs:integer: </xsl:text>
    <xsl:value-of select=""3" castable as xs:integer"/>
  </xsl:template>
</xsl:stylesheet>
Output:
"3" castable as xs:integer: true

"e" castable as xs:integer: false

<?xml version="1.0"?>
<xsl:stylesheet version="2.0" 
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xsl:output method="text"/>
  <xsl:template match="/">
    <xsl:text>"e" castable as xs:integer: </xsl:text>
    <xsl:value-of select=""e" castable as xs:integer"/>
  </xsl:template>
</xsl:stylesheet>
Output:
"e" castable as xs:integer: false