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  1// -----------------------------------------------------------------------
  2//
  3//   Copyright (C) 2003-2005 Angel Marin
  4// 
  5//   This file is part of SharpMimeTools
  6//
  7//   SharpMimeTools is free software; you can redistribute it and/or
  8//   modify it under the terms of the GNU Lesser General Public
  9//   License as published by the Free Software Foundation; either
 10//   version 2.1 of the License, or (at your option) any later version.
 11//
 12//   SharpMimeTools is distributed in the hope that it will be useful,
 13//   but WITHOUT ANY WARRANTY; without even the implied warranty of
 14//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 15//   Lesser General Public License for more details.
 16//
 17//   You should have received a copy of the GNU Lesser General Public
 18//   License along with SharpMimeTools; if not, write to the Free Software
 19//   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 20//
 21// -----------------------------------------------------------------------
 22
 23using System;
 24
 25namespace anmar.SharpMimeTools
 26...{
 27    /**//// <summary>
 28    /// 
 29    /// </summary>
 30    public sealed class ABNF ...{
 31        /**//// <summary>
 32        /// 
 33        /// </summary>
 34        public const string CRLF = "\r\n";
 35        /**//// <summary>
 36        /// 
 37        /// </summary>
 38        public const string ALPHA = @"A-Za-z";
 39        /**//// <summary>
 40        /// 
 41        /// </summary>
 42        public const string DIGIT = @"0-9";
 43        /**//// <summary>
 44        /// RFC 2822 Section 2.2.2
 45        /// </summary>
 46        public const string WSP = @"\x20\x09";
 47        /**//// <summary>
 48        /// RFC 2822 Section 3.2.1
 49        /// </summary>
 50        public const string NO_WS_CTL = @"\x01-\x08\x0B\x0C\x0E-\x1F\x7F";
 51        /**//// <summary>
 52        /// RFC 2822 Section 3.2.1
 53        /// </summary>
 54        // FIXME: add obs-text
 55        public const string text = @"\x01-\x09\x0B\x0C\x0E-\x7F";
 56        /**//// <summary>
 57        /// RFC 2822 Section 3.2.2
 58        /// </summary>
 59        // FIXME: add obs-qp
 60        public const string quoted_pair = @"\x5C[" + text + "]";
 61        /**//// <summary>
 62        /// RFC 2822 Section 3.2.3
 63        /// </summary>
 64        // FIXME: add obs-FWS
 65        public const string FWS = @"(?:(?:[" + WSP + @"]{0,}\r\n){0,1}[" + WSP + @"]+)";
 66        /**//// <summary>
 67        /// RFC 2822 Section 3.2.3
 68        /// </summary>
 69        // FIXME: Correct this simplification
 70        public const string CFWS = FWS;
 71        /**//// <summary>
 72        /// RFC 2822 Section 3.2.4
 73        /// </summary>
 74        public const string atext = ALPHA + DIGIT + @"\x21\x23-\x27\x2A\x2B\x2D\x2F\x3D\x3F\x5E\x5F\x60\x7B-\x7E";
 75        /**//// <summary>
 76        /// RFC 2822 Section 3.2.4
 77        /// </summary>
 78        public const string atom = CFWS + @"{0,1}[" + atext + @"]+" + CFWS + @"{0,1}";
 79        /**//// <summary>
 80        /// RFC 2822 Section 3.2.4
 81        /// </summary>
 82        public const string dot_atom = CFWS + @"{0,1}" + dot_atom_text + CFWS + @"{0,1}";
 83        /**//// <summary>
 84        /// RFC 2822 Section 3.2.4
 85        /// </summary>
 86        public const string dot_atom_text = @"[" + atext + @"]{1,}(?:\.[" + atext + @"]{1,}){0,}";
 87        /**//// <summary>
 88        /// RFC 2822 Section 3.2.5
 89        /// </summary>
 90        public const string DQUOTE = @"\x22";
 91        /**//// <summary>
 92        /// RFC 2822 Section 3.2.5
 93        /// </summary>
 94        public const string qtext = NO_WS_CTL + @"\x21\x23-\x5A\x5B\x5D-\x7E";
 95        /**//// <summary>
 96        /// RFC 2822 Section 3.2.5
 97        /// </summary>
 98        public const string qcontent =  @"(?:[" + qtext + @"]|(?:" + quoted_pair + @"))";
 99        /**//// <summary>
100        /// RFC 2822 Section 3.2.5
101        /// </summary>
102        public const string quoted_string = CFWS + @"{0,1}" + DQUOTE + @"(?:" + FWS + @"{0,1}" + qcontent + "){0,}" + FWS + @"{0,1}" + DQUOTE + CFWS + @"{0,1}";
103        /**//// <summary>
104        /// RFC 2822 Section 3.2.6
105        /// </summary>
106        public const string word = @"(?:" + atom + @"|(?:" + quoted_string + @"))";
107        /**//// <summary>
108        /// RFC 2822 Section 3.2.6
109        /// </summary>
110        // FIXME: add obs-phrase
111        public const string phrase = @"(?:" + word +  @"){1,}";
112        /**//// <summary>
113        /// RFC 2822 Section 3.2.6
114        /// </summary>
115        public const string address = @"(?:" + mailbox + @"|" + group + @")";
116        /**//// <summary>
117        /// RFC 2822 Section 3.2.6
118        /// </summary>
119        public const string mailbox = @"(?:" + addr_spec + @"|" + name_addr + @")";
120        /**//// <summary>
121        /// RFC 2822 Section 3.2.6
122        /// </summary>
123        public const string name_addr = @"(?:" + phrase + @"){0,}" + angle_addr;
124        /**//// <summary>
125        /// RFC 2822 Section 3.4
126        /// </summary>
127        // FIXME: add obs-angle-addr
128        public const string angle_addr = CFWS + @"{0,1}" + @"\x3C" + addr_spec + @"\x3E" + CFWS + @"{0,1}";
129        /**//// <summary>
130        /// RFC 2822 Section 3.4
131        /// </summary>
132        public const string group = phrase + @":(?:" + mailbox_list + @"|" + CFWS + @"{0,1}){0,};" + CFWS + @"{0,1}";
133        /**//// <summary>
134        /// RFC 2822 Section 3.4
135        /// </summary>
136        public const string mailbox_list = @"(?:" + mailbox + @"(?:," + mailbox + @"){0,})";
137        /**//// <summary>
138        /// RFC 2822 Section 3.4
139        /// </summary>
140        public const string address_list = @"(?:" + address + @"(?:," + address + @"){0,})";
141        /**//// <summary>
142        /// RFC 2822 Section 3.4.1
143        /// </summary>
144        // FIXME: add obs-local-part
145        public const string local_part = @"(?:" + dot_atom + @"|" + quoted_string + @")";
146        /**//// <summary>
147        /// RFC 2822 Section 3.4.1
148        /// </summary>
149        // FIXME: add obs-domain
150        public const string domain = @"(?:" + dot_atom + @"|" + domain_literal + @")";
151        /**//// <summary>
152        /// RFC 2822 Section 3.4.1
153        /// </summary>
154        public const string domain_literal = CFWS + @"{0,1}" + @"\[(?:" + FWS + @"{0,1}" + dcontent + @"){0,}" + FWS + @"{0,1}" + @"\]" + CFWS + @"{0,1}";
155        /**//// <summary>
156        /// RFC 2822 Section 3.4.1
157        /// </summary>
158        public const string dtext = NO_WS_CTL + @"\x21-\x5A\x5E-\x7E";
159        /**//// <summary>
160        /// RFC 2822 Section 3.4.1
161        /// </summary>
162        public const string dcontent = @"(?:[" + dtext + @"|" + quoted_pair + @")";
163        /**//// <summary>
164        /// RFC 2822 Section 3.4.1
165        /// </summary>
166        public const string addr_spec = local_part + "@" + domain;
167    }
168}
169