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bc511a64f6
Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
90 lines
2.8 KiB
EmacsLisp
90 lines
2.8 KiB
EmacsLisp
;;; ob-dot.el --- Babel Functions for dot -*- lexical-binding: t; -*-
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;; Copyright (C) 2009-2017 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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;; 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 <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Org-Babel support for evaluating dot source code.
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;;
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;; For information on dot see http://www.graphviz.org/
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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 dot
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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
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;;
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;; 4) there are no variables (at least for now)
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;;; Code:
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(require 'ob)
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(defvar org-babel-default-header-args:dot
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'((:results . "file") (:exports . "results"))
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"Default arguments to use when evaluating a dot source block.")
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(defun org-babel-expand-body:dot (body params)
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"Expand BODY according to PARAMS, return the expanded body."
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(let ((vars (org-babel--get-vars params)))
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(mapc
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(lambda (pair)
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(let ((name (symbol-name (car pair)))
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(value (cdr pair)))
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(setq body
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(replace-regexp-in-string
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(concat "$" (regexp-quote name))
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(if (stringp value) value (format "%S" value))
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body
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t
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t))))
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vars)
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body))
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(defun org-babel-execute:dot (body params)
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"Execute a block of Dot code with org-babel.
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This function is called by `org-babel-execute-src-block'."
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(let* ((out-file (cdr (or (assq :file params)
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(error "You need to specify a :file parameter"))))
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(cmdline (or (cdr (assq :cmdline params))
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(format "-T%s" (file-name-extension out-file))))
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(cmd (or (cdr (assq :cmd params)) "dot"))
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(in-file (org-babel-temp-file "dot-")))
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(with-temp-file in-file
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(insert (org-babel-expand-body:dot body params)))
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(org-babel-eval
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(concat cmd
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" " (org-babel-process-file-name in-file)
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" " cmdline
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" -o " (org-babel-process-file-name out-file)) "")
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nil)) ;; signal that output has already been written to file
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(defun org-babel-prep-session:dot (_session _params)
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"Return an error because Dot does not support sessions."
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(error "Dot does not support sessions"))
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(provide 'ob-dot)
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;;; ob-dot.el ends here
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