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RE: What is the value of an undefined param
- To: "'xsl-list at mulberrytech dot com'" <xsl-list at mulberrytech dot com>
- Subject: RE: What is the value of an undefined param
- From: Jonathan Asbell <jonathana at raremedium dot com>
- Date: Fri, 24 Mar 2000 15:42:22 -0500
- Reply-To: xsl-list at mulberrytech dot com
My idea is to put the stylesheet in a jsp file. The jsp
<xsl:variable name="name" select="<%=name%>"/>
for example will "plug-in" a java variable into the stylesheet variable.
Now I must test to see if a java variable actually got put in there, so I
want to test for "", which is the result of no value being passed in. How
do i do this?
-----Original Message-----
From: Kay Michael [mailto:Michael.Kay@icl.com]
Sent: Thursday, March 23, 2000 4:34 AM
To: 'xsl-list@mulberrytech.com'
Subject: RE: What is the value of an undefined param
> <xsl:param name="x" select="false()"/>
> ...
> This also makes it a bit harder for that malicious
> passer-of-misleading-parameters.
Not at all, they only have to pass in an empty string "".
A harder value to forge is
<xsl:param name="x" select="/"/>,
but unfortunately I can't think of a reliable test for this: xsl:if
test="not($x/..)" will fall over if the user supplies a string value!
Mike Kay
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