At first glance, it might seem that mouse selection (cut&paste) required
the terminal emulator to be bidi aware, but I am not sure, whether this
is true.

In xterm at least, the application (or an intermediate luit-like filter)
can intercept mouse activity and can almost implement its own cut&paste
functionality. Perhaps what should be done here is to review these
mechanisms whether they are sufficient for a complete application-side
cut&paste implementation (this would have advantages not only for bidi
but also for other issues in Unicode editors). In particular, there
might be a need for a new ESC sequence with which the application can
write a UTF-8 string into the UTF8_STRING selection buffer (for example
as the result of an application-supported mouse selection).

Markus

-- 
Markus G. Kuhn, Computer Laboratory, University of Cambridge, UK
Email: mkuhn at acm.org,  WWW: <http://www.cl.cam.ac.uk/~mgk25/>

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