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ob-ditaa: throw error when evaluated and :file header argument is missing
* lisp/ob-ditaa.el (org-babel-execute:ditaa): Throw error when evaluated and :file header argument is missing.
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@ -48,7 +48,11 @@
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"Execute a block of Ditaa 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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(out-file ((lambda (el)
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(or el
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(error
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"ditaa code block requires :file header argument")))
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(cdr (assoc :file params))))
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(cmdline (cdr (assoc :cmdline params)))
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(in-file (org-babel-temp-file "ditaa-"))
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(cmd (concat "java -jar "
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