Subject: RE: AW: [xsl] Sorting Upper-Case first. Microsoft bug? From: Mukul Gandhi <mukulw3@xxxxxxxxx> Date: Wed, 6 Aug 2003 01:49:32 -0700 (PDT) |
Thank you Mike.. Regards, Mukul --- Michael Kay <mhk@xxxxxxxxx> wrote: > > *It would be interesting to know how Saxon > implements > > this behaviour..* if M. Kay will be kind to > answer.. > > > > I thought you would never ask. I'm an optimist ;-) > > The answer is different for Saxon 6.x and Saxon 7.x. > > In Saxon 6.x, you can write your own collating > functions as a plug-in, > but if you don't, then two strings are compared as > follows: > > 1. The two strings are compared with case > normalized and accents > stripped, using Unicode codepoint order of the > normalized characters. > > 2. If step (1) finds that the strings are equal, > they are compared > with case normalized but without accents stripped, > again using codepoint > order. > > 3. If step (2) finds that the strings are equal, > the outcome depends > on the case of the first character that differs in > the two strings, > taking account of the case-order option on xsl:sort. > > Case normalization relies on the Java method > toLowerCase. Accent > stripping is implemented only for characters in the > upper half of the > Latin-1 set. > > The above is essentially a simplified implementation > of the Unicode > Collation Algorithm. > > In Saxon 7.x, Saxon uses the collation capabilities > of JDK 1.4. You can > select any collation supported by the JDK. The > default is selected > according to your locale, or according to the > language if lang is > specified on xsl:sort. If case-order is upper-first, > then the action of > the selected Java collation is modified as follows: > if the Java > collation decides that two strings collate as equal, > then Saxon examines > the two strings, looking for the first character > that differs between > the two strings. If one of these is upper case, then > that string comes > first in the sorted order. > > Michael Kay > > > > XSL-List info and archive: > http://www.mulberrytech.com/xsl/xsl-list > __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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