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Re: [xsl] XSLT sorting for index alphabetization
Subject: Re: [xsl] XSLT sorting for index alphabetization From: "Wolfgang Laun wolfgang.laun@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Mon, 16 Jun 2014 10:18:48 -0000 |
On 16/06/2014, Jirka Kosek jirka@xxxxxxxx <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 13.6.2014 23:06, David Sewell dsewell@xxxxxxxxxxxx wrote: >> I spent a bit of time trying to figure out how one might implement >> the word-by-word system (described at the above URL) using >> xsl:sort, but I'm not sure it's possible--it seems that >> word-by-word would require a full-blown recursive sorting routine. >> I'm happy to be proven wrong, though, by anyone who has tackled >> this before or is cleverer than I am about such things. > > In XSLT 2.0 you can use user- or implementation-defined collations > using collation="" attribute on xsl:sort. > > Using this feature and some effort you can implement any collation. (I'm assuming that XSLT collations can be defined as in Saxon.) I've researched several Java collations a few weeks ago, and they can be pretty nasty. The word-by-word sort David describes is not something the inventors of the Java Collation definition had in mind; that one is inherently character based. If someone comes up with a java.text.RuleBasedCollator implementation for word-by-word, I'd be *very* much surprised. And, to boot, it ought to be able to handle other languages as well, and according to their locale. (Canadian French sorting is different from French French sorting. Swiss German... German German... Austrian German... And that's hardly leaving the Roman alphabet.) Of course: if the XSLT transformator would let you write a plugin for the collation, the word-by-word would be manageable with "some effort". -W > > Jirka > > > - -- > - ------------------------------------------------------------------ > Jirka Kosek e-mail: jirka@xxxxxxxx http://xmlguru.cz > - ------------------------------------------------------------------ > Professional XML consulting and training services > DocBook customization, custom XSLT/XSL-FO document processing > - ------------------------------------------------------------------ > OASIS DocBook TC member, W3C Invited Expert, ISO JTC1/SC34 rep. > - ------------------------------------------------------------------ > Bringing you XML Prague conference http://xmlprague.cz > - ------------------------------------------------------------------ > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2.0.17 (MingW32) > Comment: Using GnuPG with Mozilla - http://www.enigmail.net/ > > iEYEARECAAYFAlOevasACgkQzwmSw7n0dR7MfQCgmIpBXB8oStwH+2k3bcPPuQnb > 08cAnRq+qkqch4uhJKa0OJ4ytnKspWrd > =CjZj > -----END PGP SIGNATURE-----
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