| commit | author | age | ||
| 76bbd0 | 1 | ;;; ob-asymptote.el --- Babel Functions for Asymptote -*- lexical-binding: t; -*- |
| C | 2 | |
| 3 | ;; Copyright (C) 2009-2018 Free Software Foundation, Inc. | |
| 4 | ||
| 5 | ;; Author: Eric Schulte | |
| 6 | ;; Keywords: literate programming, reproducible research | |
| 7 | ;; Homepage: https://orgmode.org | |
| 8 | ||
| 9 | ;; This file is part of GNU Emacs. | |
| 10 | ||
| 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. | |
| 15 | ||
| 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. | |
| 20 | ||
| 21 | ;; You should have received a copy of the GNU General Public License | |
| 22 | ;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. | |
| 23 | ||
| 24 | ;;; Commentary: | |
| 25 | ||
| 26 | ;; Org-Babel support for evaluating asymptote source code. | |
| 27 | ;; | |
| 28 | ;; This differs from most standard languages in that | |
| 29 | ;; | |
| 30 | ;; 1) there is no such thing as a "session" in asymptote | |
| 31 | ;; | |
| 32 | ;; 2) we are generally only going to return results of type "file" | |
| 33 | ;; | |
| 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 | |
| 37 | ||
| 38 | ;;; Requirements: | |
| 39 | ||
| 40 | ;; - The asymptote program :: http://asymptote.sourceforge.net/ | |
| 41 | ;; | |
| 42 | ;; - asy-mode :: Major mode for editing asymptote files | |
| 43 | ||
| 44 | ;;; Code: | |
| 45 | (require 'ob) | |
| 46 | ||
| 47 | (defvar org-babel-tangle-lang-exts) | |
| 48 | (add-to-list 'org-babel-tangle-lang-exts '("asymptote" . "asy")) | |
| 49 | ||
| 50 | (defvar org-babel-default-header-args:asymptote | |
| 51 | '((:results . "file") (:exports . "results")) | |
| 52 | "Default arguments when evaluating an Asymptote source block.") | |
| 53 | ||
| 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 (assq :file params))) | |
| 58 | (format (or (file-name-extension out-file) | |
| 59 | "pdf")) | |
| 60 | (cmdline (cdr (assq :cmdline params))) | |
| 61 | (in-file (org-babel-temp-file "asymptote-")) | |
| 62 | (cmd | |
| 63 | (concat "asy " | |
| 64 | (if out-file | |
| 65 | (concat | |
| 66 | "-globalwrite -f " format | |
| 67 | " -o " (org-babel-process-file-name out-file)) | |
| 68 | "-V") | |
| 69 | " " cmdline | |
| 70 | " " (org-babel-process-file-name in-file)))) | |
| 71 | (with-temp-file in-file | |
| 72 | (insert (org-babel-expand-body:generic | |
| 73 | body params | |
| 74 | (org-babel-variable-assignments:asymptote params)))) | |
| 75 | (message cmd) (shell-command cmd) | |
| 76 | nil)) ;; signal that output has already been written to file | |
| 77 | ||
| 78 | (defun org-babel-prep-session:asymptote (_session _params) | |
| 79 | "Return an error if the :session header argument is set. | |
| 80 | Asymptote does not support sessions" | |
| 81 | (error "Asymptote does not support sessions")) | |
| 82 | ||
| 83 | (defun org-babel-variable-assignments:asymptote (params) | |
| 84 | "Return list of asymptote statements assigning the block's variables." | |
| 85 | (mapcar #'org-babel-asymptote-var-to-asymptote | |
| 86 | (org-babel--get-vars params))) | |
| 87 | ||
| 88 | (defun org-babel-asymptote-var-to-asymptote (pair) | |
| 89 | "Convert an elisp value into an Asymptote variable. | |
| 90 | The elisp value PAIR is converted into Asymptote code specifying | |
| 91 | a variable of the same value." | |
| 92 | (let ((var (car pair)) | |
| 93 | (val (let ((v (cdr pair))) | |
| 94 | (if (symbolp v) (symbol-name v) v)))) | |
| 95 | (cond | |
| 96 | ((integerp val) | |
| 97 | (format "int %S=%S;" var val)) | |
| 98 | ((floatp val) | |
| 99 | (format "real %S=%S;" var val)) | |
| 100 | ((stringp val) | |
| 101 | (format "string %S=\"%s\";" var val)) | |
| 102 | ((and (listp val) (not (listp (car val)))) | |
| 103 | (let* ((type (org-babel-asymptote-define-type val)) | |
| 104 | (fmt (if (eq 'string type) "\"%s\"" "%s")) | |
| 105 | (vect (mapconcat (lambda (e) (format fmt e)) val ", "))) | |
| 106 | (format "%s[] %S={%s};" type var vect))) | |
| 107 | ((listp val) | |
| 108 | (let* ((type (org-babel-asymptote-define-type val)) | |
| 109 | (fmt (if (eq 'string type) "\"%s\"" "%s")) | |
| 110 | (array (mapconcat (lambda (row) | |
| 111 | (concat "{" | |
| 112 | (mapconcat (lambda (e) (format fmt e)) | |
| 113 | row ", ") | |
| 114 | "}")) | |
| 115 | val ","))) | |
| 116 | (format "%S[][] %S={%s};" type var array)))))) | |
| 117 | ||
| 118 | (defun org-babel-asymptote-define-type (data) | |
| 119 | "Determine type of DATA. | |
| 120 | ||
| 121 | DATA is a list. Return type as a symbol. | |
| 122 | ||
| 123 | The type is `string' if any element in DATA is a string. | |
| 124 | Otherwise, it is either `real', if some elements are floats, or | |
| 125 | `int'." | |
| 126 | (letrec ((type 'int) | |
| 127 | (find-type | |
| 128 | (lambda (row) | |
| 129 | (dolist (e row type) | |
| 130 | (cond ((listp e) (setq type (funcall find-type e))) | |
| 131 | ((stringp e) (throw 'exit 'string)) | |
| 132 | ((floatp e) (setq type 'real))))))) | |
| 133 | (catch 'exit (funcall find-type data)) type)) | |
| 134 | ||
| 135 | (provide 'ob-asymptote) | |
| 136 | ||
| 137 | ||
| 138 | ||
| 139 | ;;; ob-asymptote.el ends here | |
