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ee6c792ec7
- ensure body is expanded for n-repl as well - declare n-repl functions - remove require ob-tangle from ob-clojure * lisp/ob-clojure.el (org-babel-clojure-backend): Customization variable to select clojure backend (nrepl-eval): Declared function. (nrepl-current-connection-buffer): Declared function. (org-babel-execute:clojure): Execution now uses customized backend.
119 lines
4 KiB
EmacsLisp
119 lines
4 KiB
EmacsLisp
;;; ob-clojure.el --- org-babel functions for clojure evaluation
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;; Copyright (C) 2009-2013 Free Software Foundation, Inc.
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;; Author: Joel Boehland, Eric Schulte, Oleh Krehel
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;;
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;; Keywords: literate programming, reproducible research
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;; Homepage: http://orgmode.org
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; support for evaluating clojure code, relies either on slime or
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;;; on nrepl for all eval
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;;; Requirements:
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;;; - clojure (at least 1.2.0)
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;;; - clojure-mode
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;;; - either slime or nrepl
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;;; For SLIME-way, the best way to install these components is by
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;;; following the directions as set out by Phil Hagelberg (Technomancy)
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;;; on the web page: http://technomancy.us/126
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;;; For nREPL-way:
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;;; get clojure is with https://github.com/technomancy/leiningen
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;;; get nrepl from MELPA (clojure-mode is a dependency).
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;;; Code:
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(require 'ob)
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(declare-function slime-eval "ext:slime" (sexp &optional package))
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(declare-function nrepl-current-connection-buffer "ext:nrepl" ())
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(declare-function nrepl-eval "ext:nrepl" (body))
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(defvar org-babel-tangle-lang-exts)
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(add-to-list 'org-babel-tangle-lang-exts '("clojure" . "clj"))
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(defvar org-babel-default-header-args:clojure '())
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(defvar org-babel-header-args:clojure '((package . :any)))
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(defcustom org-babel-clojure-backend 'nrepl
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"Backend used to evaluate Clojure code blocks."
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:group 'org-babel
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:type 'symbol)
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(defun org-babel-expand-body:clojure (body params)
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"Expand BODY according to PARAMS, return the expanded body."
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(let* ((vars (mapcar #'cdr (org-babel-get-header params :var)))
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(result-params (cdr (assoc :result-params params)))
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(print-level nil) (print-length nil)
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(body (org-babel-trim
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(if (> (length vars) 0)
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(concat "(let ["
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(mapconcat
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(lambda (var)
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(format "%S (quote %S)" (car var) (cdr var)))
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vars "\n ")
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"]\n" body ")")
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body))))
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(cond ((or (member "code" result-params) (member "pp" result-params))
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(format (concat "(let [org-mode-print-catcher (java.io.StringWriter.)] "
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"(clojure.pprint/with-pprint-dispatch clojure.pprint/%s-dispatch "
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"(clojure.pprint/pprint (do %s) org-mode-print-catcher) "
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"(str org-mode-print-catcher)))")
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(if (member "code" result-params) "code" "simple") body))
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;; if (:results output), collect printed output
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((member "output" result-params)
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(format "(clojure.core/with-out-str %s)" body))
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(t body))))
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(defun org-babel-execute:clojure (body params)
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"Execute a block of Clojure code with Babel."
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(let ((expanded (org-babel-expand-body:clojure body params)))
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(case org-babel-clojure-backend
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(slime
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(require 'slime)
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(with-temp-buffer
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(insert expanded)
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((lambda (result)
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(let ((result-params (cdr (assoc :result-params params))))
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(org-babel-result-cond result-params
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result
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(condition-case nil (org-babel-script-escape result)
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(error result)))))
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(slime-eval
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`(swank:eval-and-grab-output
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,(buffer-substring-no-properties (point-min) (point-max)))
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(cdr (assoc :package params))))))
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(nrepl
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(require 'nrepl)
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(if (nrepl-current-connection-buffer)
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(let* ((result (nrepl-eval expanded))
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(s (plist-get result :stdout))
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(r (plist-get result :value)))
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(if s (concat s "\n" r) r))
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(error "nREPL not connected! Use M-x nrepl-jack-in."))))))
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(provide 'ob-clojure)
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;;; ob-clojure.el ends here
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