[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Correct way to test for no match
Dan,
At 04:04 PM 10/1/2009, you wrote: I have a structure where I need to match values between w element attributes. These elements are in different parst of the document. Problem I'm trying to solve is when there is a typo in one of the attributes and there is no match. I thought this would do it, but it's not I think you probably want "ancestor::ipb/figure/subfig/graphic/@boardno=$sht_num" as a positive test -- this will be true if there is a match (there exists a graphic/@boardno in that place whose value is $sht_num). This is a somewhat more direct version of your first effort, which is true when there are ancestor::ipb/figure/subfig/graphic elements whose @boardno = $sht_num, by virtue of the fact that they (necessarily) have a @boardno. But I'm not sure you want a positive test: your description suggests you want to know when there isn't. Your second attempt can be true only if $sht_num is "", and never otherwise. (It will also fail if no graphic elements are found on that path.) If you want a negative test, which will come back true if there is no graphic whose @board_no is $sht_num, the way to do that is test="not(ancestor::ipb/figure/subfig/graphic/@boardno=$sht_num)" Or, of course, you can use the xsl:otherwise clause. Good luck, Wendell Here is the doc structure: ====================================================================== 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 ======================================================================
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