1 ;;; ob-asymptote.el --- Babel Functions for Asymptote -*- lexical-binding: t; -*-
3 ;; Copyright (C) 2009-2016 Free Software Foundation, Inc.
5 ;; Author: Eric Schulte
6 ;; Keywords: literate programming, reproducible research
7 ;; Homepage: http://orgmode.org
9 ;; This file is part of GNU Emacs.
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.
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.
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/>.
26 ;; Org-Babel support for evaluating asymptote source code.
28 ;; This differs from most standard languages in that
30 ;; 1) there is no such thing as a "session" in asymptote
32 ;; 2) we are generally only going to return results of type "file"
34 ;; 3) we are adding the "file" and "cmdline" header arguments, if file
35 ;; is omitted then the -V option is passed to the asy command for
36 ;; interactive viewing
40 ;; - The asymptote program :: http://asymptote.sourceforge.net/
42 ;; - asy-mode :: Major mode for editing asymptote files
47 (defvar org-babel-tangle-lang-exts
)
48 (add-to-list 'org-babel-tangle-lang-exts
'("asymptote" .
"asy"))
50 (defvar org-babel-default-header-args
:asymptote
51 '((:results .
"file") (:exports .
"results"))
52 "Default arguments when evaluating an Asymptote source block.")
54 (defun org-babel-execute:asymptote
(body params
)
55 "Execute a block of Asymptote code.
56 This function is called by `org-babel-execute-src-block'."
57 (let* ((out-file (cdr (assoc :file params
)))
58 (format (or (and out-file
59 (string-match ".+\\.\\(.+\\)" out-file
)
60 (match-string 1 out-file
))
62 (cmdline (cdr (assoc :cmdline params
)))
63 (in-file (org-babel-temp-file "asymptote-"))
68 "-globalwrite -f " format
69 " -o " (org-babel-process-file-name out-file
))
72 " " (org-babel-process-file-name in-file
))))
73 (with-temp-file in-file
74 (insert (org-babel-expand-body:generic
76 (org-babel-variable-assignments:asymptote params
))))
77 (message cmd
) (shell-command cmd
)
78 nil
)) ;; signal that output has already been written to file
80 (defun org-babel-prep-session:asymptote
(_session _params
)
81 "Return an error if the :session header argument is set.
82 Asymptote does not support sessions"
83 (error "Asymptote does not support sessions"))
85 (defun org-babel-variable-assignments:asymptote
(params)
86 "Return list of asymptote statements assigning the block's variables."
87 (mapcar #'org-babel-asymptote-var-to-asymptote
88 (org-babel--get-vars params
)))
90 (defun org-babel-asymptote-var-to-asymptote (pair)
91 "Convert an elisp value into an Asymptote variable.
92 The elisp value PAIR is converted into Asymptote code specifying
93 a variable of the same value."
94 (let ((var (car pair
))
95 (val (let ((v (cdr pair
)))
96 (if (symbolp v
) (symbol-name v
) v
))))
99 (format "int %S=%S;" var val
))
101 (format "real %S=%S;" var val
))
103 (format "string %S=\"%s\";" var val
))
104 ((and (listp val
) (not (listp (car val
))))
105 (let* ((type (org-babel-asymptote-define-type val
))
106 (fmt (if (eq 'string type
) "\"%s\"" "%s"))
107 (vect (mapconcat (lambda (e) (format fmt e
)) val
", ")))
108 (format "%s[] %S={%s};" type var vect
)))
110 (let* ((type (org-babel-asymptote-define-type val
))
111 (fmt (if (eq 'string type
) "\"%s\"" "%s"))
112 (array (mapconcat (lambda (row)
114 (mapconcat (lambda (e) (format fmt e
))
118 (format "%S[][] %S={%s};" type var array
))))))
120 (defun org-babel-asymptote-define-type (data)
121 "Determine type of DATA.
123 DATA is a list. Return type as a symbol.
125 The type is `string' if any element in DATA is a string.
126 Otherwise, it is either `real', if some elements are floats, or
132 (cond ((listp e
) (setq type
(funcall find-type e
)))
133 ((stringp e
) (throw 'exit
'string
))
134 ((floatp e
) (setq type
'real
)))))))
135 (catch 'exit
(funcall find-type data
)) type
))
137 (provide 'ob-asymptote
)
141 ;;; ob-asymptote.el ends here