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Re: QUESTION: LC_COLLATE minimal requirements?


2008/10/12 Harshula <harshula@gmail.com>:
> Hi,
>
> I was unable to find much documentation on LC_COLLATE except for [1].
> Hence I have a few questions.
>
> Firstly, some background information. The Sinhala collation sequence
> (SLS1134) is relatively simple.
>
> * It does not have multiple characters mapping to a single
> collation element.
> * It does not consider composed and decomposed dependent vowels as
> equivalent [2].
> * It does not have to deal with secondary and tertiary weights.
> * It has a few simple tailoring rules [3] that need to be applied to the
> DUCET [4].
>
>
> Q1) Is it a requirement to use the collating-symbol keyword to define
> ALL symbols? If not, is this patch sufficient and acceptable for glibc?
> http://cvs.savannah.gnu.org/viewvc/sinhala/patches/iso14651_t1_common-glibc.patch?root=sinhala&view=log
>
> Q2) Instead of explicitly listing all the characters in order, is it
> possible to use the reorder-after keyword to only define variations to
> the DUCET?
>
> Q3) I couldn't find any documentation on:
>
> translit_start
> include  "translit_combining";""
> translit_end
>
> /usr/share/i18n/locales/translit_combining
> ------------------------------------------
> % SINHALA VOWEL SIGN DIGA KOMBUVA
> <U0DDA> "<U0DD9><U0DCA>"
> % SINHALA VOWEL SIGN KOMBUVA HAA AELA-PILLA
> <U0DDC> "<U0DD9><U0DCF>"
> % SINHALA VOWEL SIGN KOMBUVA HAA DIGA AELA-PILLA
> <U0DDD> "<U0DDC><U0DCA>"
> % SINHALA VOWEL SIGN KOMBUVA HAA GAYANUKITTA
> <U0DDE> "<U0DD9><U0DDF>"
> ------------------------------------------
>
> Does translit_start have an affect on LC_COLLATE?
>
> Thanks,
> #
>
> [1]
> http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap07.html
>
> [2]
> http://sourceforge.net/mailarchive/forum.php?thread_name=1223803982.4898.16.camel%40B1.HOME&forum_name=sinhala-technical
>
> [3]
> http://www.nongnu.org/sinhala/doc/howto/sinhala-howto.html#DEV-DATABASES
>
> [4] http://unicode.org/Public/UCA/latest/allkeys.txt
>
>


Adding Ulrich in cc list,

Thanks & Regards,
----------------------
Pravin Satpute


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