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