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smlsmlnj

How to 'fix' the SML/NJ interactive system to use Arrow Keys

I'm having some trouble using SML/NJ interactive system, namely, that when I try to use my arrow keys (either left or right to make a correction in the expression I've typed, up to repeat the last expression), my Terminal prints codes. (e.g. ^[[A for up^[[D for left, etc.). While I can still use the system, it makes it very tedious.

I've looked around in Control.Compiler, is there something I'm missing? For whatever its worth, I'm using the Mac Terminal.

Thanks ^_^

Solution

  • Try this. You can use socat to add readline support to many things:

    socat READLINE EXEC:sml

    I just realized you're on OS X. socat does seem to be available for OS X, although I have not tested it (this does work on Linux).