Subject: RE: What is the value of an undefined param From: Jonathan Asbell <jonathana@xxxxxxxxxxxxxx> Date: Mon, 27 Mar 2000 10:05:22 -0500 |
The <%=name%> will be a value before it is parsed. ie.. 1) jsp with xslt --> 2) compiled xslt page that is xml compliant --> 3) xslt matched with xml file --> 4) html result -----Original Message----- From: Wendell Piez [mailto:wapiez@xxxxxxxxxxxxxxxx] Sent: Friday, March 24, 2000 11:02 PM To: xsl-list@xxxxxxxxxxxxxxxx Subject: RE: What is the value of an undefined param Jonathan, test="$name" will fail when $name is "" as well as false() or anything else that evaluates to false (which an empty string does). Maybe I'm not clear on the question? I'm a bit worried about select="<%=name%>" though -- isn't the well-formedness parse failing on this? Maybe you need some kind of extension function to call out to get the Java variable? (would someone who knows about such architectures speak up?) That should be nice though, Wendell At 03:42 PM 3/24/00 -0500, you wrote: >My idea is to put the stylesheet in a jsp file. The jsp ><xsl:variable name="name" select="<%=name%>"/> >for example will "plug-in" a java variable into the stylesheet variable. >Now I must test to see if a java variable actually got put in there, so I >want to test for "", which is the result of no value being passed in. How >do i do this? > > > >-----Original Message----- >From: Kay Michael [mailto:Michael.Kay@xxxxxxx] >Sent: Thursday, March 23, 2000 4:34 AM >To: 'xsl-list@xxxxxxxxxxxxxxxx' >Subject: RE: What is the value of an undefined param > > >> <xsl:param name="x" select="false()"/> >> ... >> This also makes it a bit harder for that malicious >> passer-of-misleading-parameters. > >Not at all, they only have to pass in an empty string "". > >A harder value to forge is ><xsl:param name="x" select="/"/>, > >but unfortunately I can't think of a reliable test for this: xsl:if >test="not($x/..)" will fall over if the user supplies a string value! > >Mike Kay > > > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list > > > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list > > ====================================================================== Wendell Piez mailto:wapiez@xxxxxxxxxxxxxxxx Mulberry Technologies, Inc. http://www.mulberrytech.com 17 West Jefferson Street Direct Phone: 301/315-9635 Suite 207 Phone: 301/315-9631 Rockville, MD 20850 Fax: 301/315-8285 ---------------------------------------------------------------------- Mulberry Technologies: A Consultancy Specializing in SGML and XML ====================================================================== XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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