Bob's completely right. CP1256 is not adequate for Persian (Microsoft confirms this). Systems that use it for Persian usually use the hack that Bob described.
roozbeh On Fri, 12 Oct 2001 [EMAIL PROTECTED] wrote: > It isn't. That is, Persian YEH isn't available in CP1256. > > I've seen some Farsi fonts and a common hack is to swap the isolate & final > forms of Arabic Yeh (d237, U+064A) with those of Alef Maksura (d236, > U+0649), thus turning d237 into a Farsi yeh, and permitting d236 to be used > should they need final or isolate of Arabic yeh for a borrowed word or > something.

