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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: variable going out of scope in a for-each loop? Play the video Subject: Re: variable going out of scope in a for-each loop? From: Oleg Tkachenko <olegt@xxxxxxxxxxxxx> Date: Mon, 10 Dec 2001 12:04:40 +0200 Christopher R. Maden wrote: No, he didn't. This is a clever little bit of hackery. NaN is not equal to itself. So if the node value is a number, number(.)=number(.) is a tautology, but if the node value *isn't* a number, then NaN=NaN is false. Well, number() = number() is an analog of more readable expression string(number()) = 'NaN', so the issue is what is more effective and robust. First expression to be evaluated needs 2 string2numbe conversions (may be optimized to only 1) and 1 number comparison, while the second one needs 1 string2number conversion, 1 number2string and 1 string comparison, so it seems to me that hack expression is a little more effective. The only hope is XPath 2, which must support lexical representation of NaN. -- Oleg Tkachenko Multiconn International, Israel XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list Current Thread Re: variable going out of scope in a for-each loop?, (continued) Eric Smith - Sun, 9 Dec 2001 18:28:58 -0500 (EST) Mike Brown - Sun, 9 Dec 2001 18:22:03 -0500 (EST) Christopher R. Maden - Mon, 10 Dec 2001 02:21:52 -0500 (EST) Mike Brown - Mon, 10 Dec 2001 03:45:38 -0500 (EST) Oleg Tkachenko - Mon, 10 Dec 2001 05:02:19 -0500 (EST) <= Michael Kay - Sun, 9 Dec 2001 19:04:09 -0500 (EST) David Carlisle - Mon, 10 Dec 2001 04:28:47 -0500 (EST) Nate Austin - Mon, 10 Dec 2001 11:21:48 -0500 (EST) Eric Smith - Mon, 10 Dec 2001 15:40:51 -0500 (EST) <- Previous Index Next -> Re: variable going out of sco, Mike Brown Thread RE: variable going out of sco, Michael Kay Distinct problem, "Kreyßel, Conny" Date Re: whitespaces, Oleg Tkachenko Month

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