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From: Doro Rose <doroerose@gmail.com>
To: emacs-orgmode@gnu.org
Subject: [PATCH]: Fix ob-haskell.el to work with custom ghci prompts
Date: Mon, 06 Nov 2017 07:53:58 +0100	[thread overview]
Message-ID: <m160anx5h5.fsf@gmail.com> (raw)

[-- Attachment #1: Type: text/plain, Size: 525 bytes --]

Hi,

I noticed that ob-haskell.el doesn't support custom ghci prompts at present.
Custom ghci prompts such as "λ>" are quite popular in the haskell community, see for example

https://stackoverflow.com/questions/42081379/how-to-set-up-org-babel-for-haskell-with-stack

Could you have a look at the following patch and see, wether that would work in general, wrt. coding standars etc.
Obviously it works on my system, but I'm not an experienced elisp programmer, so I guess there might be  room for
improvement. 


[-- Attachment #2: ob-haskell.el diff --]
[-- Type: text/x-patch, Size: 1139 bytes --]

diff --git a/lisp/ob-haskell.el b/lisp/ob-haskell.el
index cc78bec33..361b2b9ce 100644
--- a/lisp/ob-haskell.el
+++ b/lisp/ob-haskell.el
@@ -59,14 +59,23 @@
 
 (defvar org-babel-haskell-eoe "\"org-babel-haskell-eoe\"")
 
+(defvar haskell-prompt-regexp)
+
 (defun org-babel-execute:haskell (body params)
   "Execute a block of Haskell code."
+  (require 'inf-haskell)
+  (add-hook 'inferior-haskell-hook
+            (lambda ()
+              (setq-local comint-prompt-regexp
+                          (concat haskell-prompt-regexp "\\|^λ?> "))))
   (let* ((session (cdr (assq :session params)))
          (result-type (cdr (assq :result-type params)))
          (full-body (org-babel-expand-body:generic
 		     body params
 		     (org-babel-variable-assignments:haskell params)))
          (session (org-babel-haskell-initiate-session session params))
+	 (comint-preoutput-filter-functions
+	       (cons 'ansi-color-filter-apply comint-preoutput-filter-functions))
          (raw (org-babel-comint-with-output
 		  (session org-babel-haskell-eoe t full-body)
                 (insert (org-trim full-body))

next             reply	other threads:[~2017-11-06  6:54 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-06  6:53 Doro Rose [this message]
2017-11-16 21:04 ` [PATCH]: Fix ob-haskell.el to work with custom ghci prompts Nicolas Goaziou
2017-11-16 22:22   ` Doro Rose
2017-11-17 22:14     ` Nicolas Goaziou
2017-11-18 11:12       ` Doro Rose
2017-11-29 20:21         ` Nicolas Goaziou
2017-12-02 21:25           ` Doro Rose
2017-12-11 14:14             ` Nicolas Goaziou

find likely ancestor, descendant, or conflicting patches for this message:
dfblob:cc78bec3 dfblob:361b2b9c
	(help)

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