Feature request: Julia-style "next command" down key in the REPL

[ageron]

Julia's REPL has a really nice feature: when you press the down key, if you just picked and executed a command in the history, it will select the following command in the history.

For example:

julia> 1+1
2
julia> 2+2
4
julia> 3+3
6
julia> 4+4
8
julia> 2+2        #<-- this command was selected in the history by type <up><up><up>
4
julia> 3+3        #<-- this command was selected simply by typing <down>

Rationale: it's very common to want to execute several commands in a row from the history (perhaps skipping or editing a few of them). If these commands are far up in the history, then it's cumbersome to have to go back up for each one. Thanks to this "next command" feature, you only need to go back up once.

It's probably not very hard to implement, and it's a real pleasure to use. Why not in Roc's REPL?

[Anton-4]

I'd be fine with that addition, we rely on rustyline for these things. Would you be willing to add an issue to rustyline for this? That way all projects relying on rustyline will be able to use this feature :)

[ageron]

Yes, I started looking at that yesterday and I noticed that it's rustyline under the hood. I'll file an issue over there. 👍

[ageron]

Here's the rustyline issue I just created: kkawakam/rustyline#781