Haskell code blocks

[Thomas S. Dye]

Aloha all,

Happy New Year!

I'm struggling to write a minimal ob-doc-haskell.org for Worg.

I installed Haskell via Spacemacs (development branch) and the 
Haskell installation appears to be functioning correctly.

The obligatory Hello World! example yields bad results.

#+name: haskell-hello-world
#+begin_src haskell 
main :: IO () 
main = putStrLn  "Hello, World!"
main
#+end_src

#+RESULTS: haskell-hello-world
: Prelude> Hello, World!

I'm guessing the "Prelude>" part of the output is the prompt from 
the interpreter.

I found this in ob-haskell.el:

             (setq-local comint-prompt-regexp
                         (concat haskell-prompt-regexp "\\|^λ?> 
                         "))))
                         
But I couldn't find a way to modify haskell-prompt-regexp without 
changing the source.

Advice welcome.

All the best,
Tom

--
Thomas S. Dye
https://tsdye.online/tsdye