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
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
{-
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) 2016 Albert Krewinkel
License : GNU GPL, version 2 or above
Maintainer : Albert Krewinkel <tarleb+pandoc@moltkeplatz.de>
Parsers for Org-mode export options.
-}
module Text.Pandoc.Readers.Org.ExportSettings
( exportSettings
) where
import Text.Pandoc.Readers.Org.ParserState
import Text.Pandoc.Readers.Org.Parsing
import Control.Monad ( mzero, void )
import Data.Char ( toLower )
import Data.Maybe ( listToMaybe )
-- | Read and handle space separated org-mode export settings.
exportSettings :: Monad m => OrgParser m ()
exportSettings = void $ sepBy spaces exportSetting
-- | Setter function for export settings.
type ExportSettingSetter a = a -> ExportSettings -> ExportSettings
-- | Read and process a single org-mode export option.
exportSetting :: Monad m => OrgParser m ()
exportSetting = choice
[ booleanSetting "^" (\val es -> es { exportSubSuperscripts = val })
, booleanSetting "'" (\val es -> es { exportSmartQuotes = val })
, booleanSetting "*" (\val es -> es { exportEmphasizedText = val })
, booleanSetting "-" (\val es -> es { exportSpecialStrings = val })
, ignoredSetting ":"
, ignoredSetting "<"
, ignoredSetting "\\n"
, archivedTreeSetting "arch" (\val es -> es { exportArchivedTrees = val })
, booleanSetting "author" (\val es -> es { exportWithAuthor = val })
, ignoredSetting "c"
-- org-mode allows the special value `comment` for creator, which we'll
-- interpret as true as it doesn't make sense in the context of Pandoc.
, booleanSetting "creator" (\val es -> es { exportWithCreator = val })
, complementableListSetting "d" (\val es -> es { exportDrawers = val })
, ignoredSetting "date"
, ignoredSetting "e"
, booleanSetting "email" (\val es -> es { exportWithEmail = val })
, ignoredSetting "f"
, integerSetting "H" (\val es -> es { exportHeadlineLevels = val })
, ignoredSetting "inline"
, ignoredSetting "num"
, ignoredSetting "p"
, ignoredSetting "pri"
, ignoredSetting "prop"
, ignoredSetting "stat"
, ignoredSetting "tags"
, ignoredSetting "tasks"
, ignoredSetting "tex"
, ignoredSetting "timestamp"
, ignoredSetting "title"
, ignoredSetting "toc"
, booleanSetting "todo" (\val es -> es { exportWithTodoKeywords = val })
, ignoredSetting "|"
] <?> "export setting"
genericExportSetting :: Monad m
=> OrgParser m a
-> String
-> ExportSettingSetter a
-> OrgParser m ()
genericExportSetting optionParser settingIdentifier setter = try $ do
_ <- string settingIdentifier *> char ':'
value <- optionParser
updateState $ modifyExportSettings value
where
modifyExportSettings val st =
st { orgStateExportSettings = setter val . orgStateExportSettings $ st }
-- | A boolean option, either nil (False) or non-nil (True).
booleanSetting :: Monad m => String -> ExportSettingSetter Bool -> OrgParser m ()
booleanSetting = genericExportSetting elispBoolean
-- | An integer-valued option.
integerSetting :: Monad m => String -> ExportSettingSetter Int -> OrgParser m ()
integerSetting = genericExportSetting parseInt
where
parseInt = try $
many1 digit >>= maybe mzero (return . fst) . listToMaybe . reads
-- | Either the string "headline" or an elisp boolean and treated as an
-- @ArchivedTreesOption@.
archivedTreeSetting :: Monad m
=> String
-> ExportSettingSetter ArchivedTreesOption
-> OrgParser m ()
archivedTreeSetting =
genericExportSetting $ archivedTreesHeadlineSetting <|> archivedTreesBoolean
where
archivedTreesHeadlineSetting = try $ do
_ <- string "headline"
lookAhead (newline <|> spaceChar)
return ArchivedTreesHeadlineOnly
archivedTreesBoolean = try $ do
exportBool <- elispBoolean
return $
if exportBool
then ArchivedTreesExport
else ArchivedTreesNoExport
-- | A list or a complement list (i.e. a list starting with `not`).
complementableListSetting :: Monad m
=> String
-> ExportSettingSetter (Either [String] [String])
-> OrgParser m ()
complementableListSetting = genericExportSetting $ choice
[ Left <$> complementStringList
, Right <$> stringList
, (\b -> if b then Left [] else Right []) <$> elispBoolean
]
where
-- Read a plain list of strings.
stringList :: Monad m => OrgParser m [String]
stringList = try $
char '('
*> sepBy elispString spaces
<* char ')'
-- Read an emacs lisp list specifying a complement set.
complementStringList :: Monad m => OrgParser m [String]
complementStringList = try $
string "(not "
*> sepBy elispString spaces
<* char ')'
elispString :: Monad m => OrgParser m String
elispString = try $
char '"'
*> manyTill alphaNum (char '"')
-- | Read but ignore the export setting.
ignoredSetting :: Monad m => String -> OrgParser m ()
ignoredSetting s = try (() <$ string s <* char ':' <* many1 nonspaceChar)
-- | Read an elisp boolean. Only NIL is treated as false, non-NIL values are
-- interpreted as true.
elispBoolean :: Monad m => OrgParser m Bool
elispBoolean = try $ do
value <- many1 nonspaceChar
return $ case map toLower value of
"nil" -> False
"{}" -> False
"()" -> False
_ -> True
|
