Jacob Niehus wrote:
> I narrowed it down to the point I can reproduce it with no
> configuration file. Apparently keys typed while a shell command is
> executing are drawn on screen immediately, then drawn again after the
> command finishes. Also I should have mentioned before that this is not
> Cygwin-specific; it just was more apparent on Cygwin because Cygwin is
> slow, relatively speaking.
>
> vim -u NONE -i NONE -c 'autocmd InsertCharPre * call system("sleep 1")'
Sounds like echo is on while executing the system command, but the typed
character is not consumed by the external command.
Switching echo off may have undesired side effects, e.g. for a command
that asks for confirmation.
Perhaps we could detect we get a key right after system() and redraw.
That will cause flicker though.
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