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1 | ;;; ob-io.el --- org-babel functions for Io evaluation |
2 | ||
ab422c4d | 3 | ;; Copyright (C) 2012-2013 Free Software Foundation, Inc. |
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4 | |
5 | ;; Author: Andrzej Lichnerowicz | |
6 | ;; Keywords: literate programming, reproducible research | |
7 | ;; Homepage: http://orgmode.org | |
8 | ||
9 | ;; This file is part of GNU Emacs. | |
10 | ||
11 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
12 | ;; it under the terms of the GNU General Public License as published by | |
13 | ;; the Free Software Foundation, either version 3 of the License, or | |
14 | ;; (at your option) any later version. | |
15 | ||
16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | ;; GNU General Public License for more details. | |
20 | ||
21 | ;; You should have received a copy of the GNU General Public License | |
22 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. | |
23 | ||
24 | ;;; Commentary: | |
25 | ;; Currently only supports the external execution. No session support yet. | |
26 | ;; :results output -- runs in scripting mode | |
27 | ;; :results output repl -- runs in repl mode | |
28 | ||
29 | ;;; Requirements: | |
30 | ;; - Io language :: http://iolanguage.org/ | |
31 | ;; - Io major mode :: Can be installed from Io sources | |
32 | ;; https://github.com/stevedekorte/io/blob/master/extras/SyntaxHighlighters/Emacs/io-mode.el | |
33 | ||
34 | ;;; Code: | |
35 | (require 'ob) | |
36 | (require 'ob-ref) | |
37 | (require 'ob-comint) | |
38 | (require 'ob-eval) | |
39 | (eval-when-compile (require 'cl)) | |
40 | ||
bdebdb64 | 41 | (defvar org-babel-tangle-lang-exts) ;; Autoloaded |
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42 | (add-to-list 'org-babel-tangle-lang-exts '("io" . "io")) |
43 | (defvar org-babel-default-header-args:io '()) | |
44 | (defvar org-babel-io-command "io" | |
45 | "Name of the command to use for executing Io code.") | |
46 | ||
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47 | (defun org-babel-execute:io (body params) |
48 | "Execute a block of Io code with org-babel. This function is | |
49 | called by `org-babel-execute-src-block'" | |
50 | (message "executing Io source code block") | |
51 | (let* ((processed-params (org-babel-process-params params)) | |
52 | (session (org-babel-io-initiate-session (nth 0 processed-params))) | |
53 | (vars (nth 1 processed-params)) | |
54 | (result-params (nth 2 processed-params)) | |
55 | (result-type (cdr (assoc :result-type params))) | |
56 | (full-body (org-babel-expand-body:generic | |
57 | body params)) | |
58 | (result (org-babel-io-evaluate | |
59 | session full-body result-type result-params))) | |
60 | ||
61 | (org-babel-reassemble-table | |
62 | result | |
63 | (org-babel-pick-name | |
64 | (cdr (assoc :colname-names params)) (cdr (assoc :colnames params))) | |
65 | (org-babel-pick-name | |
66 | (cdr (assoc :rowname-names params)) (cdr (assoc :rownames params)))))) | |
67 | ||
68 | ||
69 | (defun org-babel-io-table-or-string (results) | |
70 | "Convert RESULTS into an appropriate elisp value. | |
71 | If RESULTS look like a table, then convert them into an | |
72 | Emacs-lisp table, otherwise return the results as a string." | |
73 | (org-babel-script-escape results)) | |
74 | ||
75 | ||
76 | (defvar org-babel-io-wrapper-method | |
77 | "( | |
78 | %s | |
79 | ) asString print | |
80 | ") | |
81 | ||
82 | ||
83 | (defun org-babel-io-evaluate (session body &optional result-type result-params) | |
84 | "Evaluate BODY in external Io process. | |
85 | If RESULT-TYPE equals 'output then return standard output as a string. | |
86 | If RESULT-TYPE equals 'value then return the value of the last statement | |
87 | in BODY as elisp." | |
88 | (when session (error "Sessions are not (yet) supported for Io")) | |
89 | (case result-type | |
90 | (output | |
91 | (if (member "repl" result-params) | |
92 | (org-babel-eval org-babel-io-command body) | |
93 | (let ((src-file (org-babel-temp-file "io-"))) | |
94 | (progn (with-temp-file src-file (insert body)) | |
95 | (org-babel-eval | |
96 | (concat org-babel-io-command " " src-file) ""))))) | |
97 | (value (let* ((src-file (org-babel-temp-file "io-")) | |
98 | (wrapper (format org-babel-io-wrapper-method body))) | |
99 | (with-temp-file src-file (insert wrapper)) | |
100 | ((lambda (raw) | |
101 | (if (member "code" result-params) | |
102 | raw | |
103 | (org-babel-io-table-or-string raw))) | |
104 | (org-babel-eval | |
105 | (concat org-babel-io-command " " src-file) "")))))) | |
106 | ||
107 | ||
108 | (defun org-babel-prep-session:io (session params) | |
109 | "Prepare SESSION according to the header arguments specified in PARAMS." | |
110 | (error "Sessions are not (yet) supported for Io")) | |
111 | ||
112 | (defun org-babel-io-initiate-session (&optional session) | |
113 | "If there is not a current inferior-process-buffer in SESSION | |
114 | then create. Return the initialized session. Sessions are not | |
115 | supported in Io." | |
116 | nil) | |
117 | ||
118 | (provide 'ob-io) | |
119 | ||
120 | ||
121 | ||
122 | ;;; ob-io.el ends here |