From: Andrew West (andrewcwest@gmail.com)
Date: Mon Dec 07 2009 - 09:16:02 CST
2009/12/7 Doug Ewell <doug@ewellic.org>:
>
> From TUS 5.0, Section 16.2 ("Layout Controls"), page 540:
> "As with all other alternate format characters, fonts should use an
> invisible zero-width glyph for representation of both ZWJ and ZWNJ."
In this respect I think that the Unicode Standard is wrong, or at
least out of date. It may have been a good idea to use an invisible
zero-width space glyph ten years ago when there was little expectation
that ZWJ or ZWNJ would work on most systems, but that is not the case
today. I note that many fonts on my system, including quite a few
fonts from Adobe and Microsoft, include a visible glyph for ZWJ, ZWNJ
and other format characters, but at least on Windows operating systems
the user will never see them under normal circumstances. But it is
useful to have the visible glyphs in the font for things like
character maps and for editors with a "View Hidden Characters" mode.
Andrew
This archive was generated by hypermail 2.1.5 : Mon Dec 07 2009 - 09:19:42 CST