如何在 OCaml 解释器 shell 中重复最后一个命令

Question

I've been trying out OCaml. Sometimes its quicker just to test out some code using the interpreter shell but, it doesn't bring up the last command when I press the 'up' key.

Its a pain when I miss type something or wish to see what a little variation would produce.

Anyone know if there is another key for it?

Thanks,

Answer 1

Use rlwrap :

rlwrap ocaml

ocaml itself has no readline support.

You can configure readline using ~/.inputrc . For example, you could add such lines to it:

$if ocaml
"\C-o": "()\C-b"
"\C-n": ";;\n"
$endif

Now you can use ctrl-o and ctrl-n hotkeys in ocaml . Just try it.

Answer 2

You can use the improved toplevel utop . Moreover, it includes nice completion capacities.

Answer 3

我使用 ctrl + 向上箭头作为上一个输入