forked from mirrors/org-mode
119 lines
4.2 KiB
EmacsLisp
119 lines
4.2 KiB
EmacsLisp
;;; ob-js.el --- org-babel functions for Javascript
|
|
|
|
;; Copyright (C) 2010 Free Software Foundation
|
|
|
|
;; Author: Eric Schulte
|
|
;; Keywords: literate programming, reproducible research, js
|
|
;; Homepage: http://orgmode.org
|
|
;; Version: 0.01
|
|
|
|
;;; License:
|
|
|
|
;; This program 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, or (at your option)
|
|
;; any later version.
|
|
;;
|
|
;; This program 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; see the file COPYING. If not, write to the
|
|
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
;; Boston, MA 02110-1301, USA.
|
|
|
|
;;; Commentary:
|
|
|
|
;; Now working with SBCL for both session and external evaluation.
|
|
;;
|
|
;; This certainly isn't optimally robust, but it seems to be working
|
|
;; for the basic use cases.
|
|
|
|
;;; Requirements:
|
|
|
|
;; node.js | http://nodejs.org/
|
|
|
|
;;; Code:
|
|
(require 'ob)
|
|
(require 'ob-eval)
|
|
|
|
(defvar org-babel-default-header-args:js '()
|
|
"Default header arguments for js code blocks.")
|
|
|
|
(defcustom org-babel-js-cmd "node"
|
|
"Name of command used to evaluate js blocks."
|
|
:group 'org-babel
|
|
:type 'string)
|
|
|
|
(defvar org-babel-js-function-wrapper
|
|
"require('sys').print(require('sys').inspect(function(){%s}()));"
|
|
"Javascript code to print value of body.")
|
|
|
|
(defun org-babel-expand-body:js (body params &optional processed-params)
|
|
"Expand BODY according to PARAMS, return the expanded body."
|
|
(let ((vars (nth 1 (or processed-params (org-babel-process-params params)))))
|
|
(concat
|
|
(mapconcat ;; define any variables
|
|
(lambda (pair) (format "var %s=%s;"
|
|
(car pair) (org-babel-js-var-to-js (cdr pair))))
|
|
vars "\n") "\n" body "\n")))
|
|
|
|
(defun org-babel-execute:js (body params)
|
|
"Execute a block of Javascript code with org-babel.
|
|
This function is called by `org-babel-execute-src-block'"
|
|
(let* ((processed-params (org-babel-process-params params))
|
|
(session (not (string= (nth 0 processed-params) "none")))
|
|
(result-type (nth 3 processed-params))
|
|
(full-body (org-babel-expand-body:js body params processed-params)))
|
|
(org-babel-js-read
|
|
(if session
|
|
(error "javascript sessions are not yet supported.")
|
|
(let ((script-file (org-babel-temp-file "js-script-")))
|
|
(with-temp-file script-file
|
|
(insert
|
|
;; return the value or the output
|
|
(if (string= result-type "value")
|
|
(format org-babel-js-function-wrapper full-body)
|
|
full-body)))
|
|
(org-babel-eval (format "%s %s" org-babel-js-cmd script-file) ""))))))
|
|
|
|
(defun org-babel-js-read (results)
|
|
"Convert RESULTS into an appropriate elisp value.
|
|
If RESULTS look like a table, then convert them into an
|
|
Emacs-lisp table, otherwise return the results as a string."
|
|
(org-babel-read
|
|
(if (and (stringp results) (string-match "^\\[.+\\]$" results))
|
|
(org-babel-read
|
|
(concat "'"
|
|
(replace-regexp-in-string
|
|
"\\[" "(" (replace-regexp-in-string
|
|
"\\]" ")" (replace-regexp-in-string
|
|
", " " " (replace-regexp-in-string
|
|
"'" "\"" results))))))
|
|
results)))
|
|
|
|
(defun org-babel-js-var-to-js (var)
|
|
"Convert VAR into a js variable.
|
|
Convert an elisp value into a string of js source code
|
|
specifying a variable of the same value."
|
|
(if (listp var)
|
|
(concat "[" (mapconcat #'org-babel-js-var-to-js var ", ") "]")
|
|
(format "%S" var)))
|
|
|
|
(defun org-babel-prep-session:js (session params)
|
|
"Prepare SESSION according to the header arguments specified in PARAMS."
|
|
(error "not yet implemented"))
|
|
|
|
(defun org-babel-js-initiate-session (&optional session)
|
|
"If there is not a current inferior-process-buffer in SESSION
|
|
then create. Return the initialized session."
|
|
(error "Javascript sessions are not yet supported."))
|
|
|
|
(provide 'ob-js)
|
|
|
|
;; arch-tag: 84401fb3-b8d9-4bb6-9a90-cbe2d103d494
|
|
|
|
;;; ob-js.el ends here
|