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