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Diffstat (limited to 'lisp/org/ob-asymptote.el')
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diff --git a/lisp/org/ob-asymptote.el b/lisp/org/ob-asymptote.el new file mode 100644 index 00000000000..043bc4c5ff7 --- /dev/null +++ b/lisp/org/ob-asymptote.el @@ -0,0 +1,161 @@ +;;; ob-asymptote.el --- org-babel functions for asymptote evaluation + +;; Copyright (C) 2009, 2010 Free Software Foundation, Inc. + +;; Author: Eric Schulte +;; Keywords: literate programming, reproducible research +;; Homepage: http://orgmode.org +;; Version: 7.01 + +;; 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 <http://www.gnu.org/licenses/>. + +;;; Commentary: + +;; Org-Babel support for evaluating asymptote source code. +;; +;; This differs from most standard languages in that +;; +;; 1) there is no such thing as a "session" in asymptote +;; +;; 2) we are generally only going to return results of type "file" +;; +;; 3) we are adding the "file" and "cmdline" header arguments, if file +;; is omitted then the -V option is passed to the asy command for +;; interactive viewing + +;;; Requirements: + +;; - The asymptote program :: http://asymptote.sourceforge.net/ +;; +;; - asy-mode :: Major mode for editing asymptote files + +;;; Code: +(require 'ob) +(eval-when-compile (require 'cl)) + +(declare-function orgtbl-to-generic "org-table" (table params)) +(declare-function org-combine-plists "org" (&rest plists)) + +(add-to-list 'org-babel-tangle-lang-exts '("asymptote" . "asy")) + +(defvar org-babel-default-header-args:asymptote + '((:results . "file") (:exports . "results")) + "Default arguments when evaluating an Asymptote source block.") + +(defun org-babel-expand-body:asymptote (body params &optional processed-params) + "Expand BODY according to PARAMS, return the expanded body." + (let ((vars (nth 1 (or processed-params + (org-babel-process-params params))))) + (concat (mapconcat 'org-babel-asymptote-var-to-asymptote vars "\n") + "\n" body "\n"))) + +(defun org-babel-execute:asymptote (body params) + "Execute a block of Asymptote code. +This function is called by `org-babel-execute-src-block'." + (let* ((processed-params (org-babel-process-params params)) + (result-params (split-string (or (cdr (assoc :results params)) ""))) + (out-file (cdr (assoc :file params))) + (format (or (and out-file + (string-match ".+\\.\\(.+\\)" out-file) + (match-string 1 out-file)) + "pdf")) + (cmdline (cdr (assoc :cmdline params))) + (in-file (make-temp-file "org-babel-asymptote")) + (cmd (concat "asy " + (if out-file + (concat "-globalwrite -f " format " -o " out-file) + "-V") + " " cmdline " " in-file))) + (with-temp-file in-file + (insert (org-babel-expand-body:asymptote body params processed-params))) + (message cmd) (shell-command cmd) + out-file)) + +(defun org-babel-prep-session:asymptote (session params) + "Return an error if the :session header argument is set. +Asymptote does not support sessions" + (error "Asymptote does not support sessions")) + +(defun org-babel-asymptote-var-to-asymptote (pair) + "Convert an elisp value into an Asymptote variable. +The elisp value PAIR is converted into Asymptote code specifying +a variable of the same value." + (let ((var (car pair)) + (val (if (symbolp (cdr pair)) + (symbol-name (cdr pair)) + (cdr pair)))) + (cond + ((integerp val) + (format "int %S=%S;" var val)) + ((floatp val) + (format "real %S=%S;" var val)) + ((stringp val) + (format "string %S=\"%s\";" var val)) + ((listp val) + (let* ((dimension-2-p (not (null (cdr val)))) + (dim (if dimension-2-p "[][]" "[]")) + (type (org-babel-asymptote-define-type val)) + (array (org-babel-asymptote-table-to-array + val + (if dimension-2-p '(:lstart "{" :lend "}," :llend "}"))))) + (format "%S%s %S=%s;" type dim var array)))))) + +(defun org-babel-asymptote-table-to-array (table params) + "Convert values of an elisp table into a string of an asymptote array. +Empty cells are ignored." + (labels ((atom-to-string (table) + (cond + ((null table) '()) + ((not (listp (car table))) + (cons (if (and (stringp (car table)) + (not (string= (car table) ""))) + (format "\"%s\"" (car table)) + (format "%s" (car table))) + (atom-to-string (cdr table)))) + (t + (cons (atom-to-string (car table)) + (atom-to-string (cdr table)))))) + ;; Remove any empty row + (fix-empty-lines (table) + (delq nil (mapcar (lambda (l) (delq "" l)) table)))) + (orgtbl-to-generic + (fix-empty-lines (atom-to-string table)) + (org-combine-plists '(:hline nil :sep "," :tstart "{" :tend "}") params)))) + +(defun org-babel-asymptote-define-type (data) + "Determine type of DATA. +DATA is a list. Type symbol is returned as 'symbol. The type is +usually the type of the first atom encountered, except for arrays +of int, where every cell must be of int type." + (labels ((anything-but-int (el) + (cond + ((null el) nil) + ((not (listp (car el))) + (cond + ((floatp (car el)) 'real) + ((stringp (car el)) 'string) + (t + (anything-but-int (cdr el))))) + (t + (or (anything-but-int (car el)) + (anything-but-int (cdr el))))))) + (or (anything-but-int data) 'int))) + +(provide 'ob-asymptote) + +;; arch-tag: f2f5bd0d-78e8-412b-8e6c-6dadc94cc06b + +;;; ob-asymptote.el ends here |