2 // MediaTypeWithQualityHeaderValue.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 sealed class MediaTypeWithQualityHeaderValue : MediaTypeHeaderValue
35 public MediaTypeWithQualityHeaderValue (string mediaType)
40 public MediaTypeWithQualityHeaderValue (string mediaType, double quality)
46 private MediaTypeWithQualityHeaderValue ()
50 public double? Quality {
52 return QualityValue.GetValue (parameters);
55 QualityValue.SetValue (ref parameters, value);
59 public new static MediaTypeWithQualityHeaderValue Parse (string input)
61 MediaTypeWithQualityHeaderValue value;
62 if (TryParse (input, out value))
65 throw new FormatException ();
68 public static bool TryParse (string input, out MediaTypeWithQualityHeaderValue parsedValue)
70 var lexer = new Lexer (input);
72 if (TryParseElement (lexer, out parsedValue, out token) && token == Token.Type.End)
79 static bool TryParseElement (Lexer lexer, out MediaTypeWithQualityHeaderValue parsedValue, out Token t)
84 List<NameValueHeaderValue> parameters = null;
85 var token = TryParseMediaType (lexer, out media);
92 if (t == Token.Type.SeparatorSemicolon && (!NameValueHeaderValue.TryParseParameters (lexer, out parameters, out t) || t != Token.Type.End))
95 parsedValue = new MediaTypeWithQualityHeaderValue ();
96 parsedValue.media_type = media;
97 parsedValue.parameters = parameters;
101 internal static bool TryParse (string input, int minimalCount, out List<MediaTypeWithQualityHeaderValue> result)
103 return CollectionParser.TryParse (input, minimalCount, TryParseElement, out result);