I very well may be the only person using ob-haskell <https://github.com/bzg/org-mode/blob/main/lisp/ob-haskell.el>, but it has stopped working properly, maybe since an upgrade to haskell-mode-20250210.1927.
So the symptoms are that I can run this code block in an org-mode file #+begin_src haskell :results verbatim :exports both 1 + 1 #+end_src #+RESULTS: : 2 but mysteriously there is no REPL created. In the past the first C-c C-c on a block of a fresh start would create a REPL buffer named *haskell*. But now a code block such as #+begin_src haskell :results verbatim :exports both :t ($) -- give info about the $ operator #+end_src gives nothing back, i.e., still no REPL buffer. However, when repeat the 1 + 1 with :session *myhaskell* on the code block, then it does create a REPL buffer of that name -- and it starts as follows: Build profile: -w ghc-9.4.8 -O1 In order, the following will be built (use -v for more details): - codeismathiscode2-0.1.0.0 (interactive) (lib) (cannot read state cache) Preprocessing library for codeismathiscode2-0.1.0.0... GHCi, version 9.4.8: https://www.haskell.org/ghc/ :? for help Loaded GHCi configuration from /home/myhome/.ghci λ> :set prompt-cont "" λ> __LAST_VALUE_IMPROBABLE_NAME__=()::() 1 + 1 __LAST_VALUE_IMPROBABLE_NAME__=it putStrLn "org-babel-haskell-eoe" λ> 2 λ> λ> org-babel-haskell-eoe λ> __LAST_VALUE_IMPROBABLE_NAME__ putStrLn "org-babel-haskell-eoe" 2 λ> org-babel-haskell-eoe λ> but it's a complete zombie that gives only the prompt back at anything entered. I can create a function in a code block, run it -- and nothing, no recognition, complete zombie REPL. I have no understanding of the inner workings of babel ob- code, nor how it works with the mode of the language. I'm only guessing something changed in the haskell-mode to break Haskell Babel. Although haskell-mode does work fine stand-alone. And I have a makeshift system where code blocks are tangled off into a .hs file. Still, I'd like my live code block environment back. BTW, ob-haskell author Eric Schulte has me named as the maintainer -- which I'm not... ⨽ Lawrence Bottorff
