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org-mode/lisp/ob-clojure.el
Eric Schulte 78cdf14939 org-babel-result-cond - unified handling of results
* lisp/ob.el (org-babel-result-cond): This function should now be used
  by all language backends to handle the processing of raw code block
  output into scalar results, table results, or ignored results
  depending on the value of result-params.

* lisp/ob-C.el (org-babel-C-execute): Use org-babel-result-cond.
* lisp/ob-R.el (org-babel-R-evaluate-external-process): Use
  org-babel-result-cond.
  (org-babel-R-evaluate-session): Use org-babel-result-cond.
* lisp/ob-awk.el (org-babel-execute:awk): Use org-babel-result-cond.
* lisp/ob-clojure.el (org-babel-execute:clojure): Use
  org-babel-result-cond.
* lisp/ob-emacs-lisp.el (org-babel-execute:emacs-lisp): Use
  org-babel-result-cond.
* lisp/ob-fortran.el (org-babel-execute:fortran): Use
  org-babel-result-cond.
* lisp/ob-io.el (org-babel-io-evaluate): Use org-babel-result-cond.
* lisp/ob-java.el (org-babel-execute:java): Use org-babel-result-cond.
* lisp/ob-lisp.el (org-babel-execute:lisp): Use org-babel-result-cond.
* lisp/ob-maxima.el (org-babel-execute:maxima): Use
  org-babel-result-cond.
* lisp/ob-picolisp.el (org-babel-execute:picolisp): Use
  org-babel-result-cond.
* lisp/ob-python.el (org-babel-python-evaluate-external-process): Use
  org-babel-result-cond.
  (org-babel-python-evaluate-session): Use org-babel-result-cond.
* lisp/ob-scala.el (org-babel-scala-evaluate): Use org-babel-result-cond.
* lisp/ob-sh.el (org-babel-sh-evaluate): Use org-babel-result-cond.
* lisp/ob-shen.el (org-babel-execute:shen): Use org-babel-result-cond.
* lisp/ob-sql.el (org-babel-execute:sql): Use org-babel-result-cond.
* lisp/ob-sqlite.el (org-babel-execute:sqlite): Use
  org-babel-result-cond.
2012-11-18 21:58:38 -07:00

96 lines
3.2 KiB
EmacsLisp

;;; ob-clojure.el --- org-babel functions for clojure evaluation
;; Copyright (C) 2009-2012 Free Software Foundation, Inc.
;; Author: Joel Boehland
;; Eric Schulte
;; Keywords: literate programming, reproducible research
;; Homepage: http://orgmode.org
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; support for evaluating clojure code, relies on slime for all eval
;;; Requirements:
;;; - clojure (at least 1.2.0)
;;; - clojure-mode
;;; - slime
;;; By far, the best way to install these components is by following
;;; the directions as set out by Phil Hagelberg (Technomancy) on the
;;; web page: http://technomancy.us/126
;;; Code:
(require 'ob)
(declare-function slime-eval "ext:slime" (sexp &optional package))
(defvar org-babel-tangle-lang-exts)
(add-to-list 'org-babel-tangle-lang-exts '("clojure" . "clj"))
(defvar org-babel-default-header-args:clojure '())
(defvar org-babel-header-args:clojure '((package . :any)))
(defun org-babel-expand-body:clojure (body params)
"Expand BODY according to PARAMS, return the expanded body."
(let* ((vars (mapcar #'cdr (org-babel-get-header params :var)))
(result-params (cdr (assoc :result-params params)))
(print-level nil) (print-length nil)
(body (org-babel-trim
(if (> (length vars) 0)
(concat "(let ["
(mapconcat
(lambda (var)
(format "%S (quote %S)" (car var) (cdr var)))
vars "\n ")
"]\n" body ")")
body))))
(cond ((or (member "code" result-params) (member "pp" result-params))
(format (concat "(let [org-mode-print-catcher (java.io.StringWriter.)] "
"(clojure.pprint/with-pprint-dispatch clojure.pprint/%s-dispatch "
"(clojure.pprint/pprint (do %s) org-mode-print-catcher) "
"(str org-mode-print-catcher)))")
(if (member "code" result-params) "code" "simple") body))
;; if (:results output), collect printed output
((member "output" result-params)
(format "(clojure.core/with-out-str %s)" body))
(t body))))
(defun org-babel-execute:clojure (body params)
"Execute a block of Clojure code with Babel."
(require 'slime)
(with-temp-buffer
(insert (org-babel-expand-body:clojure body params))
((lambda (result)
(let ((result-params (cdr (assoc :result-params params))))
(org-babel-result-cond result-params
result
(condition-case nil (org-babel-script-escape result)
(error result)))))
(slime-eval
`(swank:eval-and-grab-output
,(buffer-substring-no-properties (point-min) (point-max)))
(cdr (assoc :package params))))))
(provide 'ob-clojure)
;;; ob-clojure.el ends here