On 8/16/2011 1:57 AM, Andrew West wrote:
> On 16 August 2011 02:59, Richard Wordingham
> <richard.wordingham_at_ntlworld.com> wrote:
>> All I've got to go on is the penultimate sentence in TUS 6.0 Section
>> 10.2 - 'Rarely, stacks are seen that contain more than one such
>> consonant-vowel combination in a vertical arrangement'.
> <http://www.unicode.org/versions/Unicode6.0.0/ch10.pdf#G30110>
>
> Which is followed immediately by the caveat:
>
> "These stacks are highly unusual and are considered beyond the scope
> of plain text rendering. They may be handled by higher-level
> mechanisms".
That's all well and good.
The question is: have any such "mechanisms" been defined and deployed by
anyone?
A./
>> The Tibetan script doesn't have a combining virama. I would expect the
>> natural coding to be something like letter-vowel-subjoined
>> letter-vowel, e.g.<U+0F40 TIBETAN LETTER KA, U+0F74 TIBETAN VOWEL SIGN
>> U, U+0FB2 TIBETAN SUBJOINED LETTER RA, U+0F74 TIBETAN VOWEL SIGN U>.
> As the Unicode Standard explicitly states, non-standard stacks such as
> this (which really are highly unusual, and only occur in a few
> specific contexts) are outside the scope of plain text rendering, and
> are not defined by the standard. It therefore makes no sense for you
> to try to specify character sequences for such non-standard stacks.
>
> Andrew
>
>
Received on Tue Aug 16 2011 - 12:24:42 CDT
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