Arthur Targaryen 342584e5f8
Port keep, keep while and keep until commands (#384)
* Add `KeepUntil` sub-command

* Add `KeepWhile` sub-command

* Add `Keep` command

* Fix error type
2021-12-17 11:57:02 +11:00
..
2021-12-09 19:16:35 -06:00
2021-12-11 14:08:17 -06:00