1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-
Copyright (C) 2006-2017 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.Readers
Copyright : Copyright (C) 2006-2017 John MacFarlane
License : GNU GPL, version 2 or above
Maintainer : John MacFarlane <jgm@berkeley.edu>
Stability : alpha
Portability : portable
This helper module exports the readers.
Note: all of the readers assume that the input text has @'\n'@
line endings. So if you get your input text from a web form,
you should remove @'\r'@ characters using @filter (/='\r')@.
-}
module Text.Pandoc.Readers
(
-- * Readers: converting /to/ Pandoc format
Reader (..)
, readers
, readDocx
, readOdt
, readMarkdown
, readCommonMark
, readMediaWiki
, readVimwiki
, readRST
, readOrg
, readLaTeX
, readHtml
, readTextile
, readDocBook
, readOPML
, readHaddock
, readNative
, readJSON
, readTWiki
, readTikiWiki
, readTxt2Tags
, readEPUB
, readMuse
-- * Miscellaneous
, getReader
, getDefaultExtensions
) where
import Control.Monad.Except (throwError)
import Data.Aeson
import Data.List (intercalate)
import Text.Pandoc.Class
import Text.Pandoc.Definition
import Text.Pandoc.Error
import Text.Pandoc.Extensions
import Text.Pandoc.Options
import Text.Pandoc.Readers.CommonMark
import Text.Pandoc.Readers.DocBook
import Text.Pandoc.Readers.Docx
import Text.Pandoc.Readers.EPUB
import Text.Pandoc.Readers.Haddock
import Text.Pandoc.Readers.HTML
import Text.Pandoc.Readers.LaTeX
import Text.Pandoc.Readers.Markdown
import Text.Pandoc.Readers.MediaWiki
import Text.Pandoc.Readers.Vimwiki
import Text.Pandoc.Readers.Muse
import Text.Pandoc.Readers.Native
import Text.Pandoc.Readers.Odt
import Text.Pandoc.Readers.OPML
import Text.Pandoc.Readers.Org
import Text.Pandoc.Readers.RST
import Text.Pandoc.Readers.Textile
import Text.Pandoc.Readers.TWiki
import Text.Pandoc.Readers.TikiWiki
import Text.Pandoc.Readers.Txt2Tags
import Text.Pandoc.Shared (mapLeft)
import Text.Parsec.Error
import qualified Text.Pandoc.UTF8 as UTF8
import qualified Data.ByteString.Lazy as BL
import Data.Text (Text)
data Reader m = TextReader (ReaderOptions -> Text -> m Pandoc)
| ByteStringReader (ReaderOptions -> BL.ByteString -> m Pandoc)
-- | Association list of formats and readers.
readers :: PandocMonad m => [(String, Reader m)]
readers = [ ("native" , TextReader readNative)
,("json" , TextReader $ \o s ->
case readJSON o s of
Right doc -> return doc
Left _ -> throwError $ PandocParseError "JSON parse error")
,("markdown" , TextReader readMarkdown)
,("markdown_strict" , TextReader readMarkdown)
,("markdown_phpextra" , TextReader readMarkdown)
,("markdown_github" , TextReader readMarkdown)
,("markdown_mmd", TextReader readMarkdown)
,("commonmark" , TextReader readCommonMark)
,("gfm" , TextReader readCommonMark)
,("rst" , TextReader readRST)
,("mediawiki" , TextReader readMediaWiki)
,("vimwiki" , TextReader readVimwiki)
,("docbook" , TextReader readDocBook)
,("opml" , TextReader readOPML)
,("org" , TextReader readOrg)
,("textile" , TextReader readTextile) -- TODO : textile+lhs
,("html" , TextReader readHtml)
,("latex" , TextReader readLaTeX)
,("haddock" , TextReader readHaddock)
,("twiki" , TextReader readTWiki)
,("tikiwiki" , TextReader readTikiWiki)
,("docx" , ByteStringReader readDocx)
,("odt" , ByteStringReader readOdt)
,("t2t" , TextReader readTxt2Tags)
,("epub" , ByteStringReader readEPUB)
,("muse" , TextReader readMuse)
]
-- | Retrieve reader, extensions based on formatSpec (format+extensions).
getReader :: PandocMonad m => String -> Either String (Reader m, Extensions)
getReader s =
case parseFormatSpec s of
Left e -> Left $ intercalate "\n" [m | Message m <- errorMessages e]
Right (readerName, setExts) ->
case lookup readerName readers of
Nothing -> Left $ "Unknown reader: " ++ readerName
Just r -> Right (r, setExts $
getDefaultExtensions readerName)
-- | Read pandoc document from JSON format.
readJSON :: ReaderOptions -> Text -> Either PandocError Pandoc
readJSON _ =
mapLeft PandocParseError . eitherDecode' . BL.fromStrict . UTF8.fromText
|
