forked from mirrors/org-mode
These languages are capable of writing results to file; for several of them this is their only mode of operation. These changes cause the languages to return to ob.el either the computed result, or nil, when they have written results to file themselves. This is in place of the previous method of returning the output file name as a string to ob.el. * lisp/ob-asymptote.el (org-babel-execute:asymptote): Return nil to signal that the intended content has been written to file. * lisp/ob-ditaa.el (org-babel-execute:ditaa): Return nil to signal that the intended content has been written to file. * lisp/ob-dot.el (org-babel-execute:dot): Return nil to signal that the intended content has been written to file. * lisp/ob-gnuplot.el (org-babel-execute:gnuplot): Return nil to signal that the intended content has been written to file. * lisp/ob-latex.el (org-babel-execute:latex): Return nil to signal that the intended content has been written to file. * lisp/ob-mscgen.el (org-babel-execute:mscgen): Return nil to signal that the intended content has been written to file. * lisp/ob-octave.el (org-babel-execute:octave): Return result; not name of output file. * lisp/ob-plantuml.el (org-babel-execute:plantuml): Return nil to signal that the intended content has been written to file. * lisp/ob-python.el (org-babel-execute:python): Return result; not name of output file. * lisp/ob-ruby.el (org-babel-execute:ruby): Return result; not name of output file. * lisp/ob-sass.el (org-babel-execute:sass): Return nil if result has been written to file
72 lines
2.6 KiB
EmacsLisp
72 lines
2.6 KiB
EmacsLisp
;;; ob-sass.el --- org-babel functions for the sass css generation language
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;; Copyright (C) 2009, 2010 Free Software Foundation, Inc.
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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: 7.4
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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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;; For more information on sass see http://sass-lang.com/
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;;
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;; This accepts a 'file' header argument which is the target of the
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;; compiled sass. The default output type for sass evaluation is
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;; either file (if a 'file' header argument was given) or scalar if no
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;; such header argument was supplied.
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;;
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;; A 'cmdline' header argument can be supplied to pass arguments to
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;; the sass command line.
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;;; Requirements:
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;; - sass-mode :: http://github.com/nex3/haml/blob/master/extra/sass-mode.el
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;;; Code:
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(require 'ob)
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(defvar org-babel-default-header-args:sass '())
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(defun org-babel-execute:sass (body params)
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"Execute a block of Sass code with 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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(file (cdr (assoc :file params)))
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(out-file (or file (org-babel-temp-file "sass-out-")))
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(cmdline (cdr (assoc :cmdline params)))
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(in-file (org-babel-temp-file "sass-in-"))
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(cmd (concat "sass " (or cmdline "")
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" " (org-babel-process-file-name in-file)
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" " (org-babel-process-file-name out-file))))
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(with-temp-file in-file
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(insert (org-babel-expand-body:generic body params))) (shell-command cmd)
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(if file
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nil ;; signal that output has already been written to file
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(with-temp-buffer (insert-file-contents out-file) (buffer-string)))))
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(defun org-babel-prep-session:sass (session params)
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"Raise an error because sass does not support sessions."
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(error "Sass does not support sessions"))
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(provide 'ob-sass)
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;; arch-tag: 2954b169-eef4-45ce-a8e5-3e619f0f07ac
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;;; ob-sass.el ends here
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