2 // TransferCodingHeaderValue.cs
5 // Marek Safar <marek.safar@gmail.com>
7 // Copyright (C) 2011 Xamarin Inc (http://www.xamarin.com)
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 using System.Collections.Generic;
31 namespace System.Net.Http.Headers
33 public class TransferCodingHeaderValue : ICloneable
35 internal string value;
36 internal List<NameValueHeaderValue> parameters;
38 public TransferCodingHeaderValue (string value)
40 Parser.Token.Check (value);
44 protected TransferCodingHeaderValue (TransferCodingHeaderValue source)
46 this.value = source.value;
47 if (source.parameters != null) {
48 foreach (var p in source.parameters) {
49 Parameters.Add (new NameValueHeaderValue (p));
54 internal TransferCodingHeaderValue ()
58 public ICollection<NameValueHeaderValue> Parameters {
60 return parameters ?? (parameters = new List<NameValueHeaderValue> ());
70 object ICloneable.Clone ()
72 return new TransferCodingHeaderValue (this);
75 public override bool Equals (object obj)
77 var fchv = obj as TransferCodingHeaderValue;
78 return fchv != null &&
79 string.Equals (value, fchv.value, StringComparison.OrdinalIgnoreCase) &&
80 parameters.SequenceEqual (fchv.parameters);
83 public override int GetHashCode ()
85 var hc = value.ToLowerInvariant ().GetHashCode ();
86 if (parameters != null)
87 hc ^= HashCodeCalculator.Calculate (parameters);
92 public static TransferCodingHeaderValue Parse (string input)
94 TransferCodingHeaderValue value;
96 if (TryParse (input, out value))
99 throw new FormatException (input);
102 public override string ToString ()
104 return value + CollectionExtensions.ToString (parameters);
107 public static bool TryParse (string input, out TransferCodingHeaderValue parsedValue)
109 var lexer = new Lexer (input);
111 if (TryParseElement (lexer, out parsedValue, out token) && token == Token.Type.End)
118 internal static bool TryParse (string input, int minimalCount, out List<TransferCodingHeaderValue> result)
120 return CollectionParser.TryParse (input, minimalCount, TryParseElement, out result);
123 static bool TryParseElement (Lexer lexer, out TransferCodingHeaderValue parsedValue, out Token t)
128 if (t != Token.Type.Token)
131 var result = new TransferCodingHeaderValue ();
132 result.value = lexer.GetStringValue (t);
136 // Parameters parsing
137 if (t == Token.Type.SeparatorSemicolon && (!NameValueHeaderValue.TryParseParameters (lexer, out result.parameters, out t) || t != Token.Type.End))
140 parsedValue = result;