Subject: Re: Defining an attribute only if not empty From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx> Date: Mon, 08 May 2000 15:30:47 +0100 |
Carlos, This is pretty straightforward: <xsl:element name="h1"> <xsl:if test="fm/@id"> <xsl:attribute name="id"> <xsl:value-of select="fm/@id"/> </xsl:attribute> </xsl:if> <xsl:if test="fm/@class"> <xsl:attribute name="class"> <xsl:value-of select="fm/@class"/> </xsl:attribute> </xsl:if> </xsl:element> Note that in order to perform the test, the processor changes the expression (e.g. 'fm/@class') that returns a node-set, into a Boolean, and it turns true if the set is not empty (i.e. if there is such an attribute). If you want to make sure the attribute exists and is not the empty string, use <xsl:if test="string(fm/@class)"> <xsl:attribute name="class"> <xsl:value-of select="fm/@class"/> </xsl:attribute> </xsl:if> Enjoy, Wendell At 12:50 PM 5/8/00 -0700, you wrote: >I'm trying to add an attribute to an element, something like this: > ><xsl:element name="h1"> > <xsl:attribute name="id"><xsl:value-of select="fm/@id"/></xsl:attribute> > <xsl:attribute name="class"<xsl:value-ofselect="fm/@class" > /></xsl:attribute> ></xsl:element> > >Now my question is, how can I detect whether an attribute doesnt' have a >value (like, say, @id is empty)? ====================================================================== 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
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