I went ahead and did this for you.
On Tue, Dec 12, 2017 at 8:44 PM, cheater00 cheater00 <cheate...@gmail.com> wrote: > Yes, it is worth doing it, because until Haskeline has been fixed and > integrated into ghci, the issue persists and needs to remain filed. > > > On Fri, 8 Dec 2017 18:25 MarLinn, <monkle...@gmail.com> wrote: >> >> I opened an issue on the Haskeline github >> (https://github.com/judah/haskeline/issues/72). >> >> But it seems to be completely Haskeline-side, so I'm not sure if it's >> worth re-opening the one for ghci? As missing documentation maybe? >> (BTW, I found this on the wiki: https://wiki.haskell.org/GHCi_in_colour. >> Might be a good place to put it, if linked.) >> >> If you want to, here are my test cases rewritten as ghci prompts: >> >> -- single line, positioning error >> :set prompt " \ESC[36m%\ESC[0m " >> -- single line, works >> :set prompt " \ESC[36m\STX%\ESC[0m\STX " >> -- multiline, bad output >> :set prompt "\ESC[32m\STX–––\ESC[0m\STX\n \ESC[36m\STX%\ESC[0m\STX " >> -- multiline, works but is inconsistent >> :set prompt "\ESC[32m–––\ESC[0m\n \ESC[36m\STX%\ESC[0m\STX " >> >> In my tests, the positioning errors consistently happen if there are any >> "unclosed" escape-sequences on the last line of the prompt, regardless of >> its length. Escape sequences on previous lines consistently create "weird >> characters", but don't influence the positioning. Also regardless of their >> lengths. That makes sense, as both sets of lines seem to be handled quite >> differently. >> >> Are multiline prompts even used by a lot of people? I like mine because it >> gives me a both a list of modules and a consistent cursor position. But >> maybe I'm the exception? >> >> Cheers. >> >> >> On 2017-12-07 23:15, cheater00 cheater00 wrote: >> >> Interesting. Would you mind reopening the issue and providing a buggy >> example? Amd alerting haskeline maintainers? How does it work on a 1 line >> prompt that is so long it wraps? >> >> >> On Thu, 7 Dec 2017 23:11 MarLinn, <monkle...@gmail.com> wrote: >>> >>> >>> > 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 >>> >> >> _______________________________________________ >> ghc-devs mailing list >> ghc-devs@haskell.org >> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
