A command because substitute doesn't really work as an operator.

This isn't working because I g...

the newline should be in the register

This doesn't leave the right value in the register, though.

Things get a little tricky when you're ignoring `fdescribe`s.

To make clear that the deletion is to the right of the cursor and the
cursor doesn't move, bring...

substitute line is a thing

Add capital-C keybinding

Horrible. I don't want to talk about it.

Keeps this conceptually grouped, as it should be.

an important distinction between D and C

Add undo/redo for repeated operators

Undoable indenting

Move over entirely to using `keydown` instead of triggering `keydownEvent`

Enable numeric line-jumping

Add Y (line yank)

This works beautifully, but the tests are failing.

This doesn't work, though. The line isn't saved to the register.

It also is patterned on deleti...

Entering command mode with ctrl-c

Oh yeah, this is for insert mode to active command mode. Now it works.

Add find and repeat shortcuts.

Small documentation cleanup

not sure if 'c' should also be mentioned here

Add "change" operation

No need for copypasta when this can be cleaner and more logical.

So simple.

Again, basically the delete specs with checking the mode afterwards.

It turns out the reason tests were failing when run as part of the
larger group was due to a dir...

with 'c' keybinding

Mostly cribbed from the delete ones, except skipping the `dd` one (for
deleting/changing an enti...