Thai Numbering in gnome-doc-utils

[Theppitak Karoonboonyanan <thep linux thai net>]

Hello,

I'm going to translate gnome-doc-utils into Thai and find
two required Thai numberings are missing. One is Thai alphabetical,
and the other is Thai decimal digits.

Thai alphabetical numbering is run with Thai consonants in the range:

  U+0E01 (THAI CHARACTER KO KAI)
    :
  U+0E2E (THAI CHARACTER HO NOKHUK)

with three characters skipped, namely:

  - U+0E03 (THAI CHARACTER KHO KHUAT)
  - U+0E05 (THAI CHARACTER KHO KHON)
  - U+0E06 (THAI CHARACTER KHO RAKHANG)

(i.e. the sequence is: U+0E01, U+0E02, U+0E04, U+0E07 .. U+0E2E)

This is mainly used for numbering appendixes in Thai
documents, and occasionally used in ordered lists.

Numbering with Thai decimal digits is less used in general,
but exists  in most official or military documents. It just uses
Thai digits in the range (U+0E50..U+0E50) for 0..9 respectively.

I'm not sure about digits bahavior described by W3C's XSLT,
nor what have been done in gnome-doc-utils, but let me mention
a common mistake in some implementations: the assumed translation
of digits. We would need an explicit way to specify whether to use
Thai digits in numbering, rather than automatically translated.

Thank you for your attention. Any comment would be appreciated.

Regards,
-Thep.
--
Theppitak Karoonboonyanan
http://linux.thai.net/~thep/