RE: What is the value of an undefined param

[Jonathan Asbell <jonathana@xxxxxxxxxxxxxx>]

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@xxxxxxx]
Sent: Thursday, March 23, 2000 4:34 AM
To: 'xsl-list@xxxxxxxxxxxxxxxx'
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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