There's a function error() that you can use for this purpose.
Michael Kay
http://www.saxonica.com
-----Original Message-----
From: Fraser Crichton [mailto:fc(_at_)ResearchResearch(_dot_)com]
Sent: 19 June 2007 11:47
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] Error recovery from casting in XSLT 2.0
Hi, there,
I'm new to XSLT 2.0 and have a question about recovering from
casting errors, say for instance I'm trying to cast to a
date, I'd do something like -
<xsl:function name="f:castToDate" as="xs:date">
<xsl:param name="date-string" as="xs:string" />
<xsl:sequence select="if ($date-string castable as xs:date)
then xs:date($date-string)
else if ($date-string castable as xs:dateTime)
then xs:date(substring-before($date-string,'T'))
else()" />
</xsl:function>
What I'm wondering is how do I raise some kind of error in the final
else() if the function gets passed something it can't cast? e.g.
<xsl:function name="f:castToDate" as="xs:date">
<xsl:param name="date-string" as="xs:string" />
<xsl:sequence select="if ($date-string castable as xs:date)
then xs:date($date-string)
else if ($date-string castable as xs:dateTime)
then xs:date(substring-before($date-string,'T'))
else("NASTY ERROR CAN'T BE RETURNED BECAUSE I'M A DATE")" />
</xsl:function>
Or do I have to write another wrapper function? I'm only a
few hundred pages into the first of Mr Kay's books so forgive
me if this is a bit basic.
Cheers,
Fraser
--~------------------------------------------------------------------
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
To unsubscribe, go to: http://lists.mulberrytech.com/xsl-list/
or e-mail:
<mailto:xsl-list-unsubscribe(_at_)lists(_dot_)mulberrytech(_dot_)com>
--~--
--~------------------------------------------------------------------
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
To unsubscribe, go to: http://lists.mulberrytech.com/xsl-list/
or e-mail: <mailto:xsl-list-unsubscribe(_at_)lists(_dot_)mulberrytech(_dot_)com>
--~--