[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Is it possible in XSLT -- Please help us ....
Ramesh,
This is another natural use for keys. Funny how these things all happen at once: this is the third of fourth we've had in the last couple of days. You want to retrieve hazmatlang nodes given a string value, namely the hazcode for any given hazmat. (Hazmats are those things they don't let on the highway, right? :-) So: <xsl:key name="hzmlang-by-code" match="hazmatlang" use="hazcode"/> The key is set to use the hazcode element child of any hazmatlang element to retrieve that element. Then, in your template for hazmats: <xsl:template match="hazmat"> <xsl:variable name="matched-langs" select="key('hzmlang-by-code', hazcode)"/> <!-- The key retrieves any hazmatlang whose hazcode element is the same as the hazcode element of the hazmat (the second argument). Strictly speaking you don't need a local variable, but hey. --> <xsl:for-each test="$matched-langs"> Process them here: you'll get all of them. Or you could use an apply-templates instead of the for-each, and process them in their own template. --> </xsl:for-each> <xsl:if test="not($matched-langs)"> <!-- fallback processing for hazmats that have no matching hazmatlangs can go here --> </xsl:if> </xsl:choose> </xsl:template> This can also be done the long way with an XPath expression such as '//hazmatlang[hazcode=current()/hazcode]' but the key is a little cleaner and allows the processor to optimize retrieval. As someone just remarked yesterday, they also have the virtue of legibility once you learn how they work. I hope that helps-- Wendell At 01:16 AM 7/11/01, you wrote: Hi all, Please help us!!! ====================================================================== 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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