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|
{-# LANGUAGE OverloadedStrings #-}
{-
Copyright (C) 2014-2016 Albert Krewinkel <tarleb+pandoc@moltkeplatz.de>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-}
{- |
Module : Text.Pandoc.Readers.Org.Options
Copyright : Copyright (C) 2014-2016 Albert Krewinkel
License : GNU GPL, version 2 or above
Maintainer : Albert Krewinkel <tarleb+pandoc@moltkeplatz.de>
Utility functions used in other Pandoc Org modules.
-}
module Text.Pandoc.Readers.Org.Shared
( isImageFilename
, rundocBlockClass
, toRundocAttrib
, translateLang
) where
import Control.Arrow ( first )
import Data.List ( isPrefixOf, isSuffixOf )
-- | Check whether the given string looks like the path to of URL of an image.
isImageFilename :: String -> Bool
isImageFilename filename =
any (\x -> ('.':x) `isSuffixOf` filename) imageExtensions &&
(any (\x -> (x++":") `isPrefixOf` filename) protocols ||
':' `notElem` filename)
where
imageExtensions = [ "jpeg" , "jpg" , "png" , "gif" , "svg" ]
protocols = [ "file", "http", "https" ]
-- | Prefix used for Rundoc classes and arguments.
rundocPrefix :: String
rundocPrefix = "rundoc-"
-- | The class-name used to mark rundoc blocks.
rundocBlockClass :: String
rundocBlockClass = rundocPrefix ++ "block"
-- | Prefix the name of a attribute, marking it as a code execution parameter.
toRundocAttrib :: (String, String) -> (String, String)
toRundocAttrib = first (rundocPrefix ++)
-- | Translate from Org-mode's programming language identifiers to those used
-- by Pandoc. This is useful to allow for proper syntax highlighting in
-- Pandoc output.
translateLang :: String -> String
translateLang cs =
case cs of
"C" -> "c"
"C++" -> "cpp"
"emacs-lisp" -> "commonlisp" -- emacs lisp is not supported
"js" -> "javascript"
"lisp" -> "commonlisp"
"R" -> "r"
"sh" -> "bash"
"sqlite" -> "sql"
_ -> cs
|
