Re: [tlug] katakana

["J. David Beutel" <jdb@example.com>]

> > Can anybody explain the need for 3 different katakana characters? What's
> > the purpose of having two smaller sized letters (narrow and half-width) ?
> > 
> >  http://www.unicode.org/charts/PDF/UFF00.pdf
> >  http://www.unicode.org/charts/PDF/U30A0.pdf
> > 
> > Example:
> >  [NORMAL] ワ, HEX: 30EF, isWide:1
> >  [HALF] ヮ, HEX: 30EE, isWide:1
> >  [NARROW] ワ, HEX: FF9C, isWide:0

It looks like the narrow is half-width, while the half is
half-height-and-width.  The width seems like a font issue, but they can't
be unified in Unicode because they're separate in one of Japan's standard
character sets.  They need to be separate in Unicode so that Unicode can
round-trip to that character set.

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