Simon Beaumont <si...@datalligator.com> writes: > Well that's really odd: I modded the paths in init.el and did the following: > > emacs -Q -l init.el foo.org > > When I eval'ed the code block in foo.org (twice) I still get message: > "Code block returned no value" I've attached the inferior haskell > buffer and all relevant files. > > (add-to-list 'load-path "~/.emacs.d/elpa/haskell-mode-20130610.152")
I thought maybe it could be a difference between our haskell modes, so I switched to the latest available through my elpa (haskell-mode-13.6), and I still see the correct behavior. > GHClet fac n = product [1..n] > [(x,fac x) | x <- [0..11]] > "org-babel-haskell-eoe" > i, version 7.6.3: http://www.haskell.org/ghc/ :? for help > Loading package ghc-prim ... linking ... done. > Loading package integer-gmp ... linking ... done. > Loading package base ... linking ... done. >> [(0,1),(1,1),(2,2),(3,6),(4,24),(5,120),(6,720),(7,5040),(8,40320),(9,362880),(10,3628800),(11,39916800)] >> "org-babel-haskell-eoe" >> let fac n = product [1..n] > [(x,fac x) | x <- [0..11]] > "org-babel-haskell-eoe" >> [(0,1),(1,1),(2,2),(3,6),(4,24),(5,120),(6,720),(7,5040),(8,40320),(9,362880),(10,3628800),(11,39916800)] >> "org-babel-haskell-eoe" > My *haskell* buffer looks different then yours. Namely I have "Prelude>" where as you just have ">". I don't know if this is significant. Maybe you've customized your ghci prompts in such a way that the comint functions can no longer recognize where output begins? ,---- | GHCi, version 7.6.3: http://www.haskell.org/ghc/ :? for help | Loading package ghc-prim ... let fac n = product [1..n] | [(x,fac x) | x <- [0..11]] | "org-babel-haskell-eoe" | linking ... done. | Loading package integer-gmp ... linking ... done. | Loading package base ... linking ... done. | Prelude> Prelude> [(0,1),(1,1),(2,2),(3,6),(4,24),(5,120),(6,720),(7,5040),(8,40320),(9,362880),(10,3628800),(11,39916800)] | Prelude> "org-babel-haskell-eoe" | Prelude> let fac n = product [1..n] | [(x,fac x) | x <- [0..11]] | "org-babel-haskell-eoe" | Prelude> [(0,1),(1,1),(2,2),(3,6),(4,24),(5,120),(6,720),(7,5040),(8,40320),(9,362880),(10,3628800),(11,39916800)] | Prelude> "org-babel-haskell-eoe" | Prelude> `---- I'm not sure what else this could be. One option would be to instrument `org-babel-execute:haskell' or `org-babel-comint-with-output' with edebug, and then step through evaluation to see if you can pinpoint where the problem lies. Hope this helps, -- Eric Schulte http://cs.unm.edu/~eschulte