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75 lines
2.7 KiB
EmacsLisp
75 lines
2.7 KiB
EmacsLisp
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;;; litorgy-exp.el --- Exportation of litorgy source blocks
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;; Copyright (C) 2009 Eric Schulte
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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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;; Version: 0.01
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;;; License:
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;; This program 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, or (at your option)
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;; any later version.
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;;
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;; This program 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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;;
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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;;; Commentary:
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;; for more information see the comments in litorgy.el
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;;; Code:
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(add-to-list 'org-export-blocks '(src litorgy-exp-src-blocks))
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(defun litorgy-exp-src-blocks (body &rest headers)
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"Process src block for export. Depending on the 'export'
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headers argument in replace the source code block with...
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both ---- the default, display the code and the results
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code ---- display the code inside the block but do not process
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results - process the block and replace it with the results of
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execution
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none ----- do not display either code or results upon export"
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(interactive)
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(unless headers (error "litorgy can't process a source block without knowing the source code"))
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(message "litorgy processing...")
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(let* ((lang (car headers))
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(params (litorgy-parse-header-arguments (mapconcat #'identity (cdr headers) " ")))
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(export (cdr (assoc :exports params))))
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(case (intern (or export "both"))
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('none "")
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('code (litorgy-exp-code body lang params))
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('results (litorgy-exp-results body lang params))
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('both (concat (litorgy-exp-code body lang params)
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"\n\n"
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(litorgy-exp-results body lang params))))))
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(defun litorgy-exp-code (body lang params)
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(format "#+BEGIN_SRC %s\n%s%s\n#+END_SRC" lang body
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(if (string-match "\n$" body) "" "\n")))
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(defun litorgy-exp-results (body lang params)
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(let* ((cmd (intern (concat "litorgy-execute:" lang)))
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(result (funcall cmd body params))
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(result-as-org (litorgy-result-to-org-string result)))
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(if (stringp result)
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(format "#+BEGIN_EXAMPLE\n%s%s\n#+END_EXAMPLE" result
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(if (string-match "\n$" body) "" "\n"))
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result-as-org)))
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(provide 'litorgy-exp)
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;;; litorgy-exp.el ends here
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