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[org-mode/org-jambu.git] / lisp / ob-clojure.el
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1 ;;; ob-clojure.el --- org-babel functions for clojure evaluation
3 ;; Copyright (C) 2009, 2010 Free Software Foundation, Inc.
5 ;; Author: Joel Boehland, Eric Schulte
6 ;; Keywords: literate programming, reproducible research
7 ;; Homepage: http://orgmode.org
8 ;; Version: 7.4
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software: you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation, either version 3 of the License, or
15 ;; (at your option) any later version.
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 ;;; Commentary:
27 ;;; support for evaluating clojure code, relies on slime for all eval
29 ;;; Requirements:
31 ;;; - clojure (at least 1.2.0)
32 ;;; - clojure-mode
33 ;;; - slime
34 ;;; - swank-clojure
36 ;;; By far, the best way to install these components is by following
37 ;;; the directions as set out by Phil Hagelberg (Technomancy) on the
38 ;;; web page: http://technomancy.us/126
40 ;;; Code:
41 (require 'ob)
43 (declare-function slime-eval "ext:slime" (sexp &optional package))
45 (add-to-list 'org-babel-tangle-lang-exts '("clojure" . "clj"))
47 (defvar org-babel-default-header-args:clojure '())
48 (defvar org-babel-header-arg-names:clojure '(package))
50 (defun org-babel-expand-body:clojure (body params)
51 "Expand BODY according to PARAMS, return the expanded body."
52 (let* ((vars (mapcar #'cdr (org-babel-get-header params :var)))
53 (result-params (cdr (assoc :result-params params)))
54 (print-level nil) (print-length nil)
55 (body (org-babel-trim
56 (if (> (length vars) 0)
57 (concat "(let ["
58 (mapconcat
59 (lambda (var)
60 (format "%S (quote %S)" (car var) (cdr var)))
61 vars "\n ")
62 "]\n" body ")")
63 body))))
64 (if (or (member "code" result-params)
65 (member "pp" result-params))
66 (format (concat "(let [org-mode-print-catcher (java.io.StringWriter.)]"
67 "(clojure.pprint/with-pprint-dispatch %s-dispatch"
68 "(clojure.pprint/pprint %s org-mode-print-catcher)"
69 "(str org-mode-print-catcher)))")
70 (if (member "code" result-params) "code" "simple") body)
71 body)))
73 (defun org-babel-execute:clojure (body params)
74 "Execute a block of Clojure code with Babel."
75 (require 'slime) (require 'swank-clojure)
76 (with-temp-buffer
77 (insert (org-babel-expand-body:clojure body params))
78 (read
79 (slime-eval
80 `(swank:interactive-eval-region
81 ,(buffer-substring-no-properties (point-min) (point-max)))
82 (cdr (assoc :package params))))))
84 (provide 'ob-clojure)
86 ;; arch-tag: a43b33f2-653e-46b1-ac56-2805cf05b7d1
88 ;;; ob-clojure.el ends here