1 {- offlineimap component
2 Copyright (C) 2008 John Goerzen <jgoerzen@complete.org>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 module Network.IMAP.Parser.Prim where
20 import Text.ParserCombinators.Parsec
21 import Network.IMAP.Types
23 ----------------------------------------------------------------------
24 -- RFC 2234 (ABNF) declarations
25 ----------------------------------------------------------------------
29 ctl = '\x7f' : ['\x00'..'\x1f']
42 digit2234 = ['0'..'9']
46 hexdig = digit2234 ++ ['A'..'F']
50 alpha = ['A'..'Z'] ++ ['a'..'z']
58 char2234 = ['\x01'..'\x7f']
66 ----------------------------------------------------------------------
67 -- RFC 3501 primitives
68 ----------------------------------------------------------------------
71 atomSpecials :: String
72 atomSpecials = "(){ " ++ ctl ++ listWildcards ++ quotedSpecials ++ respSpecials
74 listWildcards :: String
77 quotedSpecials :: String
78 quotedSpecials = ['\\', dquote]
80 respSpecials :: String
83 ----------------------------------------------------------------------
84 -- Parsec RFC 3501 primitives
85 ----------------------------------------------------------------------
87 -- | Technically, <any CHAR except atom-specials> but we will
88 -- be more permissive.
90 -- FIXME: not stated in RFC, but perhaps CRLF is also excluded?
91 atomChar = noneOf atomSpecials
95 astringChar = atomChar <|> oneOf respSpecials
97 astring = many1 astringChar <|> string3501
99 string3501 = quoted <|> literal
103 scount <- many1 digit
106 let icount = (read scount)::Int
111 strdata <- many quotedChar
116 noneOf quotedSpecials <|> (do char '\\'