On Tue, 11 Jun 2013, Stephan Stiller wrote: > How is the placement of vowel marks around ligatures > handled in Arabic text? > > I'm also wondering how font designers normally handle this.
Older fonts in older operating systems (like Windows XP) often failed. See http://www.unicode.org/mail-arch/unicode-ml/y2012-m03/0101.html http://www.unicode.org/mail-arch/unicode-ml/y2008-m05/thread.html#139
