I've never tried, but this blog post seems to do the right thing:
i have downloaded data from postgresql into a file my haskell program.
i can of course edit this file with say vim.
can i run vim on that file from within haskell and after quiting vim
have control returned to my haskell program?
the situation is like calling vim to edit my claws-mail emails instead
of using the native editor. after editing, i quit the external editor
and am returned to the native editor.
--
In friendship,
prad
... with you on your journey
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