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{-# LANGUAGE OverloadedStrings #-}
{-
Copyright (C) 2006-2015 John MacFarlane <jgm@berkeley.edu>
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.Writers.Native
Copyright : Copyright (C) 2006-2015 John MacFarlane
License : GNU GPL, version 2 or above
Maintainer : John MacFarlane <jgm@berkeley.edu>
Stability : alpha
Portability : portable
Conversion of a 'Pandoc' document to a string representation.
Note: If @writerStandalone@ is @False@, only the document body
is represented; otherwise, the full 'Pandoc' document, including the
metadata.
-}
module Text.Pandoc.Writers.Native ( writeNative )
where
import Text.Pandoc.Options ( WriterOptions(..), WrapOption(..) )
import Data.List ( intersperse )
import Text.Pandoc.Definition
import Text.Pandoc.Pretty
prettyList :: [Doc] -> Doc
prettyList ds =
"[" <> (cat $ intersperse (cr <> ",") $ map (nest 1) ds) <> "]"
-- | Prettyprint Pandoc block element.
prettyBlock :: Block -> Doc
prettyBlock (LineBlock lines') =
"LineBlock" $$ prettyList (map (text . show) lines')
prettyBlock (BlockQuote blocks) =
"BlockQuote" $$ prettyList (map prettyBlock blocks)
prettyBlock (OrderedList attribs blockLists) =
"OrderedList" <> space <> text (show attribs) $$
(prettyList $ map (prettyList . map prettyBlock) blockLists)
prettyBlock (BulletList blockLists) =
"BulletList" $$
(prettyList $ map (prettyList . map prettyBlock) blockLists)
prettyBlock (DefinitionList items) = "DefinitionList" $$
(prettyList $ map deflistitem items)
where deflistitem (term, defs) = "(" <> text (show term) <> "," <> cr <>
nest 1 (prettyList $ map (prettyList . map prettyBlock) defs) <> ")"
prettyBlock (Table caption aligns widths header rows) =
"Table " <> text (show caption) <> " " <> text (show aligns) <> " " <>
text (show widths) $$
prettyRow header $$
prettyList (map prettyRow rows)
where prettyRow cols = prettyList (map (prettyList . map prettyBlock) cols)
prettyBlock (Div attr blocks) =
text ("Div " <> show attr) $$ prettyList (map prettyBlock blocks)
prettyBlock block = text $ show block
-- | Prettyprint Pandoc document.
writeNative :: WriterOptions -> Pandoc -> String
writeNative opts (Pandoc meta blocks) =
let colwidth = if writerWrapText opts == WrapAuto
then Just $ writerColumns opts
else Nothing
withHead = if writerStandalone opts
then \bs -> text ("Pandoc (" ++ show meta ++ ")") $$
bs $$ cr
else id
in render colwidth $ withHead $ prettyList $ map prettyBlock blocks
|
