lisp/ob-lisp.el

   1 ;;; ob-lisp.el --- org-babel functions for common lisp evaluation
   2
   3 ;; Copyright (C) 2009-2011  Free Software Foundation, Inc.
   4
   5 ;; Author: Joel Boehland
   6 ;;      Eric Schulte
   7 ;;      David T. O'Toole <dto@gnu.org>
   8 ;; Keywords: literate programming, reproducible research
   9 ;; Homepage: http://orgmode.org
  10
  11 ;; This file is part of GNU Emacs.
  12
  13 ;; GNU Emacs is free software: you can redistribute it and/or modify
  14 ;; it under the terms of the GNU General Public License as published by
  15 ;; the Free Software Foundation, either version 3 of the License, or
  16 ;; (at your option) any later version.
  17
  18 ;; GNU Emacs is distributed in the hope that it will be useful,
  19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 ;; GNU General Public License for more details.
  22
  23 ;; You should have received a copy of the GNU General Public License
  24 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  25
  26 ;;; Commentary:
  27
  28 ;;; support for evaluating common lisp code, relies on slime for all eval
  29
  30 ;;; Requirements:
  31
  32 ;; Requires SLIME (Superior Lisp Interaction Mode for Emacs.)
  33 ;; See http://common-lisp.net/project/slime/
  34
  35 ;;; Code:
  36 (require 'ob)
  37
  38 (declare-function slime-eval "ext:slime" (sexp &optional package))
  39
  40 (defvar org-babel-tangle-lang-exts)
  41 (add-to-list 'org-babel-tangle-lang-exts '("lisp" . "lisp"))
  42
  43 (defvar org-babel-default-header-args:lisp '())
  44 (defvar org-babel-header-arg-names:lisp '(package))
  45
  46 (defcustom org-babel-lisp-dir-fmt
  47   "(let ((*default-pathname-defaults* #P%S)) %%s)"
  48   "Format string used to wrap code bodies to set the current directory.
  49 For example a value of \"(progn ;; %s\\n   %%s)\" would ignore the
  50 current directory string."
  51   :group 'org-babel
  52   :type 'string)
  53
  54 (defun org-babel-expand-body:lisp (body params)
  55   "Expand BODY according to PARAMS, return the expanded body."
  56   (let* ((vars (mapcar #'cdr (org-babel-get-header params :var)))
  57          (result-params (cdr (assoc :result-params params)))
  58          (print-level nil) (print-length nil)
  59          (body (org-babel-trim
  60                 (if (> (length vars) 0)
  61                     (concat "(let ("
  62                             (mapconcat
  63                              (lambda (var)
  64                                (format "(%S (quote %S))" (car var) (cdr var)))
  65                              vars "\n      ")
  66                             ")\n" body ")")
  67                   body))))
  68     (if (or (member "code" result-params)
  69             (member "pp" result-params))
  70         (format "(pprint %s)" body)
  71       body)))
  72
  73 (defun org-babel-execute:lisp (body params)
  74   "Execute a block of Common Lisp code with Babel."
  75   (require 'slime)
  76   (org-babel-reassemble-table
  77    ((lambda (result)
  78       (if (member "output" (cdr (assoc :result-params params)))
  79           (car result)
  80         (condition-case nil
  81             (read (org-babel-lisp-vector-to-list (cadr result)))
  82           (error (cadr result)))))
  83     (with-temp-buffer
  84       (insert (org-babel-expand-body:lisp body params))
  85       (slime-eval `(swank:eval-and-grab-output
  86                     ,(let ((dir (if (assoc :dir params)
  87                                             (cdr (assoc :dir params))
  88                                           default-directory)))
  89                        (format
  90                         (if dir (format org-babel-lisp-dir-fmt dir) "(progn %s)")
  91                         (buffer-substring-no-properties
  92                          (point-min) (point-max)))))
  93                   (cdr (assoc :package params)))))
  94    (org-babel-pick-name (cdr (assoc :colname-names params))
  95                         (cdr (assoc :colnames params)))
  96    (org-babel-pick-name (cdr (assoc :rowname-names params))
  97                         (cdr (assoc :rownames params)))))
  98
  99 (defun org-babel-lisp-vector-to-list (results)
 100   ;; TODO: better would be to replace #(...) with [...]
 101   (replace-regexp-in-string "#(" "(" results))
 102
 103 (provide 'ob-lisp)
 104
 105
 106
 107 ;;; ob-lisp.el ends here