Re: [Groff] mapping of glyphs to Unicode

[Werner LEMBERG]

> Bruno> U+27E8..27E9 are MATHEMATICAL LEFT/RIGHT ANGLE BRACKET and
> Bruno> were introduced in Unicode 3.2.  The glyphs are very similar
> Bruno> (see http://www.unicode.org/charts/symbols.html under
> Bruno> "Misc. Math Symbols A" and "Miscellaneous Technical").  Why
> Bruno> prefer one over the other?
> 
> FWIW, those two glyphs are from the Symbol font.  devutf8 probably
> uses them because the ps device uses Symbol to display la and ra.

No, the reason is that U+2329 and U+232A are canonically identical to
U+3008 and U+3009, respectively, for historical reasons.  Normally,
the latter two glyphs (which are in the CJK punctuation range) are
displayed as double-width characters.


    Werner