stdin.readln line editing and recall with up arrow

[Daren Scot Wilson]

On Saturday, 25 February 2023 at 05:41:48 UTC, Richard (Rikki) 
Andrew Cattermole wrote:
> On 25/02/2023 6:36 PM, Daren Scot Wilson wrote:
>> stdin.readln() works fine until I, out of habit, use the up 
>> arrow to recall an earlier input and the left/right to move 
>> around and change a character.   How do I get that to work?
>
> Not with that module.
>
> You can either use GNU readline itself, or Adam's version 
> within arsd.

I went with readline.  Left/right arrows work, but up arrow still 
does not recall earlier commands. Maybe I need also a separate 
input history thing?