ob-asymptote.el 6.3 KB

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  1. ;;; ob-asymptote.el --- org-babel functions for asymptote evaluation
  2. ;; Copyright (C) 2009, 2010 Free Software Foundation, Inc.
  3. ;; Author: Eric Schulte
  4. ;; Keywords: literate programming, reproducible research
  5. ;; Homepage: http://orgmode.org
  6. ;; Version: 7.5
  7. ;; This file is part of GNU Emacs.
  8. ;; GNU Emacs is free software: you can redistribute it and/or modify
  9. ;; it under the terms of the GNU General Public License as published by
  10. ;; the Free Software Foundation, either version 3 of the License, or
  11. ;; (at your option) any later version.
  12. ;; GNU Emacs is distributed in the hope that it will be useful,
  13. ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. ;; GNU General Public License for more details.
  16. ;; You should have received a copy of the GNU General Public License
  17. ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
  18. ;;; Commentary:
  19. ;; Org-Babel support for evaluating asymptote source code.
  20. ;;
  21. ;; This differs from most standard languages in that
  22. ;;
  23. ;; 1) there is no such thing as a "session" in asymptote
  24. ;;
  25. ;; 2) we are generally only going to return results of type "file"
  26. ;;
  27. ;; 3) we are adding the "file" and "cmdline" header arguments, if file
  28. ;; is omitted then the -V option is passed to the asy command for
  29. ;; interactive viewing
  30. ;;; Requirements:
  31. ;; - The asymptote program :: http://asymptote.sourceforge.net/
  32. ;;
  33. ;; - asy-mode :: Major mode for editing asymptote files
  34. ;;; Code:
  35. (require 'ob)
  36. (eval-when-compile (require 'cl))
  37. (declare-function orgtbl-to-generic "org-table" (table params))
  38. (declare-function org-combine-plists "org" (&rest plists))
  39. (add-to-list 'org-babel-tangle-lang-exts '("asymptote" . "asy"))
  40. (defvar org-babel-default-header-args:asymptote
  41. '((:results . "file") (:exports . "results"))
  42. "Default arguments when evaluating an Asymptote source block.")
  43. (defun org-babel-execute:asymptote (body params)
  44. "Execute a block of Asymptote code.
  45. This function is called by `org-babel-execute-src-block'."
  46. (let* ((result-params (split-string (or (cdr (assoc :results params)) "")))
  47. (out-file (cdr (assoc :file params)))
  48. (format (or (and out-file
  49. (string-match ".+\\.\\(.+\\)" out-file)
  50. (match-string 1 out-file))
  51. "pdf"))
  52. (cmdline (cdr (assoc :cmdline params)))
  53. (in-file (org-babel-temp-file "asymptote-"))
  54. (cmd
  55. (concat "asy "
  56. (if out-file
  57. (concat
  58. "-globalwrite -f " format
  59. " -o " (org-babel-process-file-name out-file))
  60. "-V")
  61. " " cmdline
  62. " " (org-babel-process-file-name in-file))))
  63. (with-temp-file in-file
  64. (insert (org-babel-expand-body:generic
  65. body params
  66. (org-babel-variable-assignments:asymptote params))))
  67. (message cmd) (shell-command cmd)
  68. nil)) ;; signal that output has already been written to file
  69. (defun org-babel-prep-session:asymptote (session params)
  70. "Return an error if the :session header argument is set.
  71. Asymptote does not support sessions"
  72. (error "Asymptote does not support sessions"))
  73. (defun org-babel-variable-assignments:asymptote (params)
  74. "Return list of asymptote statements assigning the block's variables"
  75. (mapcar #'org-babel-asymptote-var-to-asymptote
  76. (mapcar #'cdr (org-babel-get-header params :var))))
  77. (defun org-babel-asymptote-var-to-asymptote (pair)
  78. "Convert an elisp value into an Asymptote variable.
  79. The elisp value PAIR is converted into Asymptote code specifying
  80. a variable of the same value."
  81. (let ((var (car pair))
  82. (val (if (symbolp (cdr pair))
  83. (symbol-name (cdr pair))
  84. (cdr pair))))
  85. (cond
  86. ((integerp val)
  87. (format "int %S=%S;" var val))
  88. ((floatp val)
  89. (format "real %S=%S;" var val))
  90. ((stringp val)
  91. (format "string %S=\"%s\";" var val))
  92. ((listp val)
  93. (let* ((dimension-2-p (not (null (cdr val))))
  94. (dim (if dimension-2-p "[][]" "[]"))
  95. (type (org-babel-asymptote-define-type val))
  96. (array (org-babel-asymptote-table-to-array
  97. val
  98. (if dimension-2-p '(:lstart "{" :lend "}," :llend "}")))))
  99. (format "%S%s %S=%s;" type dim var array))))))
  100. (defun org-babel-asymptote-table-to-array (table params)
  101. "Convert values of an elisp table into a string of an asymptote array.
  102. Empty cells are ignored."
  103. (labels ((atom-to-string (table)
  104. (cond
  105. ((null table) '())
  106. ((not (listp (car table)))
  107. (cons (if (and (stringp (car table))
  108. (not (string= (car table) "")))
  109. (format "\"%s\"" (car table))
  110. (format "%s" (car table)))
  111. (atom-to-string (cdr table))))
  112. (t
  113. (cons (atom-to-string (car table))
  114. (atom-to-string (cdr table))))))
  115. ;; Remove any empty row
  116. (fix-empty-lines (table)
  117. (delq nil (mapcar (lambda (l) (delq "" l)) table))))
  118. (orgtbl-to-generic
  119. (fix-empty-lines (atom-to-string table))
  120. (org-combine-plists '(:hline nil :sep "," :tstart "{" :tend "}") params))))
  121. (defun org-babel-asymptote-define-type (data)
  122. "Determine type of DATA.
  123. DATA is a list. Type symbol is returned as 'symbol. The type is
  124. usually the type of the first atom encountered, except for arrays
  125. of int, where every cell must be of int type."
  126. (labels ((anything-but-int (el)
  127. (cond
  128. ((null el) nil)
  129. ((not (listp (car el)))
  130. (cond
  131. ((floatp (car el)) 'real)
  132. ((stringp (car el)) 'string)
  133. (t
  134. (anything-but-int (cdr el)))))
  135. (t
  136. (or (anything-but-int (car el))
  137. (anything-but-int (cdr el)))))))
  138. (or (anything-but-int data) 'int)))
  139. (provide 'ob-asymptote)
  140. ;; arch-tag: f2f5bd0d-78e8-412b-8e6c-6dadc94cc06b
  141. ;;; ob-asymptote.el ends here