blob: e7a916f1c332d997376ddc5f485976cabc0c5966 (
plain)
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
|
{-# LANGUAGE NoImplicitPrelude #-}
{- |
Module : Text.Pandoc.Readers.Docx.Fields
Copyright : Copyright (C) 2014-2019 Jesse Rosenthal
License : GNU GPL, version 2 or above
Maintainer : Jesse Rosenthal <jrosenthal@jhu.edu>
Stability : alpha
Portability : portable
For parsing Field definitions in instText tags, as described in
ECMA-376-1:2016, §17.16.5 -}
module Text.Pandoc.Readers.Docx.Fields ( FieldInfo(..)
, parseFieldInfo
) where
import Prelude
import Text.Parsec
import Text.Parsec.String (Parser)
type URL = String
data FieldInfo = HyperlinkField URL
| UnknownField
deriving (Show)
parseFieldInfo :: String -> Either ParseError FieldInfo
parseFieldInfo = parse fieldInfo ""
fieldInfo :: Parser FieldInfo
fieldInfo =
try (HyperlinkField <$> hyperlink)
<|>
return UnknownField
escapedQuote :: Parser String
escapedQuote = string "\\\""
inQuotes :: Parser String
inQuotes =
(try escapedQuote) <|> (anyChar >>= (\c -> return [c]))
quotedString :: Parser String
quotedString = do
char '"'
concat <$> manyTill inQuotes (try (char '"'))
unquotedString :: Parser String
unquotedString = manyTill anyChar (try $ lookAhead space *> return () <|> eof)
fieldArgument :: Parser String
fieldArgument = quotedString <|> unquotedString
-- there are other switches, but this is the only one I've seen in the wild so far, so it's the first one I'll implement. See §17.16.5.25
hyperlinkSwitch :: Parser (String, String)
hyperlinkSwitch = do
sw <- string "\\l"
spaces
farg <- fieldArgument
return (sw, farg)
hyperlink :: Parser URL
hyperlink = do
many space
string "HYPERLINK"
spaces
farg <- fieldArgument
switches <- spaces *> many hyperlinkSwitch
let url = case switches of
("\\l", s) : _ -> farg ++ ('#': s)
_ -> farg
return url
|
