Re: support for "SUBSCRIPT THREE" etc. ?

[Michail Vidiassov <master@iaas.msu.ru>]

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Dear Hans and All,

On Tue, 21 Jul 2009, Hans Hagen wrote:

>>>> Superscript works well, but not the subscript:
>>>>
>>>> \starttext
>>>> x³ x₃
>>>> \stoptext
>>> Unicode sub/superscripts aren't real sub/superscripts, and there use is
>>> discouraged. Most fonts will align those subscript glyphs to the base
>>> line not bellow it, and apparently LM fonts don't have them.
>> 
>> In MKIV one could theoretically fix the (virtual) font with subscript
>> three containing "\sub{3}" *** or "lowered superscript 3" :)
>> 
> it's also font dependent and we would en dup with fallback mess etc etc
>
> if the font has the glyph, you can use the unicode char, bu tit is 
> unlikely that there will be a mapping mechanism

What about an analog of "ucs" LaTeX package,
when Unicode math subscripts (and other symbols) in TeX file are replaced
by "\sub{3}" etc., regardless of the font used for typesetting?

It will give WYSIWYG-like appearance of the input file on the screen
in the editor using Unicode font and will not bring the mess deep into 
ConTeXt?

Is such thing doable?
(Not making a set of mappings for presonal use, but proper package
for public consumption?)

                    Sincerely, Michail

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