Re: Long standing annoying issue in ghci

Here's what I use:

:set prompt "\ESC[46m\STX%s>\ESC[39;49m\STX "

I believe \STX is a signal to haskeline for control sequences. Documentation is here: https://github.com/judah/haskeline/wiki/ControlSequencesInPrompt Note: If you're using a multi-line prompt, things may be different again. I don't know what the rules are, but I found that if I put \STX on any but the last line of prompts I get weird characters. The same goes for any \SOH you might want to add for some reason.

Cheers, MarLinn