From: Philippe Verdy (verdy_p@wanadoo.fr)
Date: Tue Dec 02 2003 - 14:36:34 EST
Peter Jacobi wrote:
> Envoyé : mardi 2 décembre 2003 14:30
> À : Markus Scherer
> Cc : unicode@unicode.org
> Objet : Re: no more precomposed characters for 1:1 conversion
>
>
> Hi Markus,
>
> Markus Scherer <markus.scherer@jtcsv.com> wrote:
> > ICU 2.8 has the ability to handle m:n character conversion
> mappings driven
> > by simple lines in
> > Unicode conversion tables (text files).
>
> That's a nice coiincidence, to have this feature. I was wondering
> if this would enable transcoding from legacy Tamil charsets (in visual
> glyph order, like Thai) to Unicode.
There's another generic m:n converter which supports stateful (contextual)
conversion in SIL.org, based on a system similar to regular expressions with
subexpressions used in search/replace operations in vi, except that this is
more a system to search and replace by converting matches.
I don't think that the m:n conversion in ICU is as powerful as the converter
in SIL.org (look for example at the SIL-IPA93 converter, which has all the
feature of a contextual shaping engine, and a glyph ligature processor, as
it allows full control of the reordering of the converted code).
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