Add readline features in OCaml toplevel
It is painful for a Linux user to use the OCaml toplevel without the readline features.
Is there a method to enable/add these kinds of features in readline to the OCaml toplevel?
I find 2 options that work very well for me:
utop provides a beautiful interface and supports completion, colors, parenthesis matching, etc. It can be installed by OPAM: opam install utop.
Another simple way I found is to use the rlwrap for line editing support: https://www.systutorials.com/docs/linux/man/1-rlwrap/
To start the OCaml toplevel with rlwrap, run:
$ rlwrap ocaml
Or wrap it in a shell script:
#!/bin/sh
exec rlwrap /usr/bin/ocaml "$@"