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58f1dbccf8
Also remove blank lines before the ";;; org*el ends here" declarations. Having a "Version" header forced us to update every file when releasing a new version of Org; it also forced us to update every file when merging Org with Emacs trunk, thus cluttering the diffs between the previously merged version and the new one with useless information. Glenn Morris suggested this in emacs-devel: http://lists.gnu.org/archive/html/emacs-devel/2011-08/msg00322.html
72 lines
2.4 KiB
EmacsLisp
72 lines
2.4 KiB
EmacsLisp
;;; ob-ledger.el --- org-babel functions for ledger evaluation
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;; Copyright (C) 2010-2011 Free Software Foundation, Inc.
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;; Author: Eric S Fraga
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;; Keywords: literate programming, reproducible research, accounting
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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 ledger entries.
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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 ledger
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;;
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;; 2) we are generally only going to return output from the leger program
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;;
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;; 3) we are adding the "cmdline" header argument
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;;
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;; 4) there are no variables
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;;; Code:
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(require 'ob)
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(defvar org-babel-default-header-args:ledger
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'((:results . "output") (:cmdline . "bal"))
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"Default arguments to use when evaluating a ledger source block.")
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(defun org-babel-execute:ledger (body params)
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"Execute a block of Ledger entries with org-babel. This function is
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called by `org-babel-execute-src-block'."
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(message "executing Ledger source code block")
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(let ((result-params (split-string (or (cdr (assoc :results params)) "")))
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(cmdline (cdr (assoc :cmdline params)))
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(in-file (org-babel-temp-file "ledger-"))
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(out-file (org-babel-temp-file "ledger-output-")))
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(with-temp-file in-file (insert body))
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(message "%s" (concat "ledger"
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" -f " (org-babel-process-file-name in-file)
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" " cmdline))
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(with-output-to-string
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(shell-command (concat "ledger"
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" -f " (org-babel-process-file-name in-file)
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" " cmdline
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" > " (org-babel-process-file-name out-file))))
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(with-temp-buffer (insert-file-contents out-file) (buffer-string))))
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(defun org-babel-prep-session:ledger (session params)
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(error "Ledger does not support sessions"))
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(provide 'ob-ledger)
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;;; ob-ledger.el ends here
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