From: Doug Ewell (firstname.lastname@example.org)
Date: Thu Nov 25 2004 - 00:09:41 CST
"kefas" <pmr at informatik dot uni dash frankfurt dot de> wrote:
> 1. U+034F CGJ, Combining Grapheme Joiner, is
> displayed as a tall rectangle in MSKLCexe-test and as
> a capital square in OutlookExpress A͏E a͏e͏a͏e. But
> CGJ "has no visible glyph"! Thus CGJ is not
> implemented correctly in Arial Unicode MS. Or are the
> editors not implemented correctly?
U+034F was added to Unicode 3.2 in March 2002. Your copy of Arial
Unicode MS may have been released before that date. Or it may be that
Microsoft has chosen not to implement U+034F in this particular font,
which is not the same as implementing it incorrectly.
> Should A+CGJ+E
> yield the Danish double letter a+(e-attached) ? Or
> do I hope in vain.
Someone, some day may choose to render A + CGJ + E as Æ. Don't be
misled into thinking they are equivalent, however.
> Is there a general rule how graphically to join 2
> arbitrary characters? Normal tf looks already joined
> to me, and causes me problems of recognizing t and f
> as distinct letters. (I have astigmatism: cyl -3.0,
> which is not that rare) m and rn look the same from
> normal reading distance!. Some editors / some fonts
> display an m with uneven spacing of legs, which looks
> to me as if r+n is written. Any help in planning (you
There probably could not be a general rule about this, because it is too
dependent on individual typeface designs. Sans-serif fonts like Arial
will likely have many more "joined" combinations than serif fonts like
Times, because the serifs interrupt the joining behavior. Whether the
horizontal strokes on a "t" and an "f" line up with each other is also
highly font-dependent. In many cases they do not.
I think I have your astigmatism beat, at least in one eye.
> 2. RLM, the Right to Left marker, seems to have no
> effect yet. Hebrew bet+RLM+SPace should leave the
> Cursor at Left and not 'jump' to the right of bet as
> it does for good or worse for bet+SP. If this is a
> correct expectation, then how can I tell (e.g. via
> MSKLC.exe) to insert RLM+SPace on CAPS+SPace ?
This may have more to do with the rendering engine than with the font.
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