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53 lines
2.0 KiB
EmacsLisp
53 lines
2.0 KiB
EmacsLisp
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;;; ob-plantuml.el --- org-babel functions for plantuml evaluation
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;; Author: Zhang Weize
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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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;;; 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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(defun org-babel-expand-body:plantuml (body params &optional processed-params)
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"Expand BODY according to PARAMS, return the expanded body." body)
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(defvar org-plantuml-jar-path)
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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 (cdr (assoc :file params)))
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(cmdline (cdr (assoc :cmdline params)))
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(in-file (make-temp-file "org-babel-plantuml")))
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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 (concat "java -jar " org-plantuml-jar-path
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" -p " cmdline " < " in-file " > " out-file))
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(shell-command (concat "java -jar " (shell-quote-argument org-plantuml-jar-path)
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" -p " cmdline " < " in-file " > " out-file))
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; The method below will produce error when exporting the buffer.
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;; (with-temp-buffer
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;; (call-process-shell-command
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;; (concat "java -jar " org-plantuml-jar-path " -p " cmdline)
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;; in-file
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;; '(t nil))
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;; (write-region nil nil out-file))
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out-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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