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86 lines
3.0 KiB
EmacsLisp
86 lines
3.0 KiB
EmacsLisp
;;; ob-plantuml.el --- org-babel functions for plantuml evaluation
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;; Copyright (C) 2010-2014 Free Software Foundation, Inc.
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;; Author: Zhang Weize
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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 <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Org-Babel support for evaluating plantuml script.
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;;
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;; Inspired by Ian Yang's org-export-blocks-format-plantuml
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;; http://www.emacswiki.org/emacs/org-export-blocks-format-plantuml.el
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;;; Requirements:
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;; plantuml | http://plantuml.sourceforge.net/
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;; plantuml.jar | `org-plantuml-jar-path' should point to the jar file
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;;; Code:
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(require 'ob)
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(defvar org-babel-default-header-args:plantuml
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'((:results . "file") (:exports . "results"))
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"Default arguments for evaluating a plantuml source block.")
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(defcustom org-plantuml-jar-path ""
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"Path to the plantuml.jar file."
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:group 'org-babel
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:version "24.1"
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:type 'string)
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(defun org-babel-execute:plantuml (body params)
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"Execute a block of plantuml code with org-babel.
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This function is called by `org-babel-execute-src-block'."
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(let* ((result-params (split-string (or (cdr (assoc :results params)) "")))
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(out-file (or (cdr (assoc :file params))
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(error "PlantUML requires a \":file\" header argument")))
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(cmdline (cdr (assoc :cmdline params)))
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(in-file (org-babel-temp-file "plantuml-"))
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(java (or (cdr (assoc :java params)) ""))
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(cmd (if (string= "" org-plantuml-jar-path)
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(error "`org-plantuml-jar-path' is not set")
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(concat "java " java " -jar "
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(shell-quote-argument
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(expand-file-name org-plantuml-jar-path))
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(if (string= (file-name-extension out-file) "svg")
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" -tsvg" "")
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(if (string= (file-name-extension out-file) "eps")
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" -teps" "")
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" -p " cmdline " < "
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(org-babel-process-file-name in-file)
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" > "
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(org-babel-process-file-name out-file)))))
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(unless (file-exists-p org-plantuml-jar-path)
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(error "Could not find plantuml.jar at %s" org-plantuml-jar-path))
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(with-temp-file in-file (insert (concat "@startuml\n" body "\n@enduml")))
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(message "%s" cmd) (org-babel-eval cmd "")
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nil)) ;; signal that output has already been written to file
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(defun org-babel-prep-session:plantuml (session params)
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"Return an error because plantuml does not support sessions."
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(error "Plantuml does not support sessions"))
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(provide 'ob-plantuml)
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;;; ob-plantuml.el ends here
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