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- ;;; ob-io.el --- Babel Functions for Io -*- lexical-binding: t; -*-
- ;; Copyright (C) 2012-2021 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 :: https://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
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