Simple plugin that lets the d operator delete quickfix entries and u /
<C-r> undo and redo those deletions. Undos are tracked linearly rather than
in a tree. They are also tracked outside the quickfix lists, so each list has
its own history (meaning :colder or :cnewer will move you to a different
list, with its own history).
This plugin also provides its own implementation of :Cfilter and :Lfilter
from the runtime's cfilter plugin so that filters are also tracked in the undo
state.
The following plugins improve the quickfix list in various ways. They may not interact well with this plugin or with each other: