;;; ob-io.el --- Babel Functions for Io -*- lexical-binding: t; -*- ;; Copyright (C) 2012-2018 Free Software Foundation, Inc. ;; Author: Andrzej Lichnerowicz ;; Keywords: literate programming, reproducible research ;; Homepage: https://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 <https://www.gnu.org/licenses/>. ;;; Commentary: ;; Currently only supports the external execution. No session support yet. ;; :results output -- runs in scripting mode ;; :results output repl -- runs in repl mode ;;; Requirements: ;; - Io language :: http://iolanguage.org/ ;; - Io major mode :: Can be installed from Io sources ;; https://github.com/stevedekorte/io/blob/master/extras/SyntaxHighlighters/Emacs/io-mode.el ;;; Code: (require 'ob) (defvar org-babel-tangle-lang-exts) ;; Autoloaded (add-to-list 'org-babel-tangle-lang-exts '("io" . "io")) (defvar org-babel-default-header-args:io '()) (defvar org-babel-io-command "io" "Name of the command to use for executing Io code.") (defun org-babel-execute:io (body params) "Execute a block of Io code with org-babel. This function is called by `org-babel-execute-src-block'" (message "executing Io source code block") (let* ((processed-params (org-babel-process-params params)) (session (org-babel-io-initiate-session (nth 0 processed-params))) (result-params (nth 2 processed-params)) (result-type (cdr (assq :result-type params))) (full-body (org-babel-expand-body:generic body params)) (result (org-babel-io-evaluate session full-body result-type result-params))) (org-babel-reassemble-table result (org-babel-pick-name (cdr (assq :colname-names params)) (cdr (assq :colnames params))) (org-babel-pick-name (cdr (assq :rowname-names params)) (cdr (assq :rownames params)))))) (defvar org-babel-io-wrapper-method "( %s ) asString print ") (defun org-babel-io-evaluate (session body &optional result-type result-params) "Evaluate BODY in external Io process. If RESULT-TYPE equals `output' then return standard output as a string. If RESULT-TYPE equals `value' then return the value of the last statement in BODY as elisp." (when session (error "Sessions are not (yet) supported for Io")) (pcase result-type (`output (if (member "repl" result-params) (org-babel-eval org-babel-io-command body) (let ((src-file (org-babel-temp-file "io-"))) (progn (with-temp-file src-file (insert body)) (org-babel-eval (concat org-babel-io-command " " src-file) ""))))) (`value (let* ((src-file (org-babel-temp-file "io-")) (wrapper (format org-babel-io-wrapper-method body))) (with-temp-file src-file (insert wrapper)) (let ((raw (org-babel-eval (concat org-babel-io-command " " src-file) ""))) (org-babel-result-cond result-params raw (org-babel-script-escape raw))))))) (defun org-babel-prep-session:io (_session _params) "Prepare SESSION according to the header arguments specified in PARAMS." (error "Sessions are not (yet) supported for Io")) (defun org-babel-io-initiate-session (&optional _session) "If there is not a current inferior-process-buffer in SESSION then create. Return the initialized session. Sessions are not supported in Io." nil) (provide 'ob-io) ;;; ob-io.el ends here