| commit | author | age | ||
| 76bbd0 | 1 | ;;; ob-maxima.el --- Babel Functions for Maxima -*- lexical-binding: t; -*- |
| C | 2 | |
| 3 | ;; Copyright (C) 2009-2018 Free Software Foundation, Inc. | |
| 4 | ||
| 5 | ;; Author: Eric S Fraga | |
| 6 | ;; Eric Schulte | |
| 7 | ;; Keywords: literate programming, reproducible research, maxima | |
| 8 | ;; Homepage: https://orgmode.org | |
| 9 | ||
| 10 | ;; This file is part of GNU Emacs. | |
| 11 | ||
| 12 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
| 13 | ;; it under the terms of the GNU General Public License as published by | |
| 14 | ;; the Free Software Foundation, either version 3 of the License, or | |
| 15 | ;; (at your option) any later version. | |
| 16 | ||
| 17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 20 | ;; GNU General Public License for more details. | |
| 21 | ||
| 22 | ;; You should have received a copy of the GNU General Public License | |
| 23 | ;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. | |
| 24 | ||
| 25 | ;;; Commentary: | |
| 26 | ||
| 27 | ;; Org-Babel support for evaluating maxima entries. | |
| 28 | ;; | |
| 29 | ;; This differs from most standard languages in that | |
| 30 | ;; | |
| 31 | ;; 1) there is no such thing as a "session" in maxima | |
| 32 | ;; | |
| 33 | ;; 2) we are adding the "cmdline" header argument | |
| 34 | ||
| 35 | ;;; Code: | |
| 36 | (require 'ob) | |
| 37 | ||
| 38 | (defvar org-babel-tangle-lang-exts) | |
| 39 | (add-to-list 'org-babel-tangle-lang-exts '("maxima" . "max")) | |
| 40 | ||
| 41 | (defvar org-babel-default-header-args:maxima '()) | |
| 42 | ||
| 43 | (defcustom org-babel-maxima-command | |
| 44 | (if (boundp 'maxima-command) maxima-command "maxima") | |
| 45 | "Command used to call maxima on the shell." | |
| 46 | :group 'org-babel | |
| 47 | :type 'string) | |
| 48 | ||
| 49 | (defun org-babel-maxima-expand (body params) | |
| 50 | "Expand a block of Maxima code according to its header arguments." | |
| 51 | (let ((vars (org-babel--get-vars params)) | |
| 52 | (epilogue (cdr (assq :epilogue params))) | |
| 53 | (prologue (cdr (assq :prologue params)))) | |
| 54 | (mapconcat 'identity | |
| 55 | (list | |
| 56 | ;; Any code from the specified prologue at the start. | |
| 57 | prologue | |
| 58 | ;; graphic output | |
| 59 | (let ((graphic-file (ignore-errors (org-babel-graphical-output-file params)))) | |
| 60 | (if graphic-file | |
| 61 | (format | |
| 62 | "set_plot_option ([gnuplot_term, png]); set_plot_option ([gnuplot_out_file, %S]);" | |
| 63 | graphic-file) | |
| 64 | "")) | |
| 65 | ;; variables | |
| 66 | (mapconcat 'org-babel-maxima-var-to-maxima vars "\n") | |
| 67 | ;; body | |
| 68 | body | |
| 69 | ;; Any code from the specified epilogue at the end. | |
| 70 | epilogue | |
| 71 | "gnuplot_close ()$") | |
| 72 | "\n"))) | |
| 73 | ||
| 74 | (defun org-babel-execute:maxima (body params) | |
| 75 | "Execute a block of Maxima entries with org-babel. | |
| 76 | This function is called by `org-babel-execute-src-block'." | |
| 77 | (message "executing Maxima source code block") | |
| 78 | (let ((result-params (split-string (or (cdr (assq :results params)) ""))) | |
| 79 | (result | |
| 80 | (let* ((cmdline (or (cdr (assq :cmdline params)) "")) | |
| 81 | (in-file (org-babel-temp-file "maxima-" ".max")) | |
| 82 | (cmd (format "%s --very-quiet -r 'batchload(%S)$' %s" | |
| 83 | org-babel-maxima-command in-file cmdline))) | |
| 84 | (with-temp-file in-file (insert (org-babel-maxima-expand body params))) | |
| 85 | (message cmd) | |
| 86 | ;; " | grep -v batch | grep -v 'replaced' | sed '/^$/d' " | |
| 87 | (let ((raw (org-babel-eval cmd ""))) | |
| 88 | (mapconcat | |
| 89 | #'identity | |
| 90 | (delq nil | |
| 91 | (mapcar (lambda (line) | |
| 92 | (unless (or (string-match "batch" line) | |
| 93 | (string-match "^rat: replaced .*$" line) | |
| 94 | (string-match "^;;; Loading #P" line) | |
| 95 | (= 0 (length line))) | |
| 96 | line)) | |
| 97 | (split-string raw "[\r\n]"))) "\n"))))) | |
| 98 | (if (ignore-errors (org-babel-graphical-output-file params)) | |
| 99 | nil | |
| 100 | (org-babel-result-cond result-params | |
| 101 | result | |
| 102 | (let ((tmp-file (org-babel-temp-file "maxima-res-"))) | |
| 103 | (with-temp-file tmp-file (insert result)) | |
| 104 | (org-babel-import-elisp-from-file tmp-file)))))) | |
| 105 | ||
| 106 | ||
| 107 | (defun org-babel-prep-session:maxima (_session _params) | |
| 108 | (error "Maxima does not support sessions")) | |
| 109 | ||
| 110 | (defun org-babel-maxima-var-to-maxima (pair) | |
| 111 | "Convert an elisp val into a string of maxima code specifying a var | |
| 112 | of the same value." | |
| 113 | (let ((var (car pair)) | |
| 114 | (val (cdr pair))) | |
| 115 | (when (symbolp val) | |
| 116 | (setq val (symbol-name val)) | |
| 117 | (when (= (length val) 1) | |
| 118 | (setq val (string-to-char val)))) | |
| 119 | (format "%S: %s$" var | |
| 120 | (org-babel-maxima-elisp-to-maxima val)))) | |
| 121 | ||
| 122 | (defun org-babel-maxima-elisp-to-maxima (val) | |
| 123 | "Return a string of maxima code which evaluates to VAL." | |
| 124 | (if (listp val) | |
| 125 | (concat "[" (mapconcat #'org-babel-maxima-elisp-to-maxima val ", ") "]") | |
| 126 | (format "%s" val))) | |
| 127 | ||
| 128 | ||
| 129 | (provide 'ob-maxima) | |
| 130 | ||
| 131 | ||
| 132 | ||
| 133 | ;;; ob-maxima.el ends here | |
