Ungarble output from several threads or commands

LTS Haskell 15.7:1.10.11
Stackage Nightly 2020-04-09:1.10.11
Latest on Hackage:1.10.11

See all snapshots concurrent-output appears in

BSD-2-Clause licensed by Joey Hess, Joachim Breitner
Maintained by Joey Hess

Module documentation for 1.10.11

This version can be pinned in stack with:[email protected]:4763be82e45881cb163cda7f7ff3a0e30a1fb4fe1d7fb1f7e194c62a30089c3b,1651

Lets multiple threads and external processes concurrently output to the console, without it getting all garbled up.

Built on top of that is a way of defining multiple output regions, which are automatically laid out on the screen and can be individually updated by concurrent threads. Can be used for progress displays etc.