136 lines
3.5 KiB
C#
136 lines
3.5 KiB
C#
//
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// ProductHeaderValue.cs
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//
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// Authors:
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// Marek Safar <marek.safar@gmail.com>
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//
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// Copyright (C) 2011 Xamarin Inc (http://www.xamarin.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System.Collections.Generic;
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namespace System.Net.Http.Headers
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{
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public class ProductHeaderValue : ICloneable
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{
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public ProductHeaderValue (string name)
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{
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Parser.Token.Check (name);
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Name = name;
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}
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public ProductHeaderValue (string name, string version)
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: this (name)
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{
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if (version != null)
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Parser.Token.Check (version);
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Version = version;
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}
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internal ProductHeaderValue ()
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{
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}
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public string Name { get; internal set; }
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public string Version { get; internal set; }
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object ICloneable.Clone ()
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{
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return MemberwiseClone ();
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}
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public override bool Equals (object obj)
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{
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var source = obj as ProductHeaderValue;
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if (source == null)
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return false;
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return string.Equals (source.Name, Name, StringComparison.OrdinalIgnoreCase) &&
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string.Equals (source.Version, Version, StringComparison.OrdinalIgnoreCase);
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}
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public override int GetHashCode ()
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{
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var hc = Name.ToLowerInvariant ().GetHashCode ();
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if (Version != null)
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hc ^= Version.ToLowerInvariant ().GetHashCode ();
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return hc;
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}
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public static ProductHeaderValue Parse (string input)
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{
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ProductHeaderValue value;
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if (TryParse (input, out value))
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return value;
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throw new FormatException (input);
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}
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public static bool TryParse (string input, out ProductHeaderValue parsedValue)
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{
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var lexer = new Lexer (input);
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Token token;
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if (TryParseElement (lexer, out parsedValue, out token) && token == Token.Type.End)
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return true;
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parsedValue = null;
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return false;
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}
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internal static bool TryParse (string input, int minimalCount, out List<ProductHeaderValue> result)
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{
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return CollectionParser.TryParse (input, minimalCount, TryParseElement, out result);
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}
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static bool TryParseElement (Lexer lexer, out ProductHeaderValue parsedValue, out Token t)
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{
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parsedValue = null;
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t = lexer.Scan ();
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if (t != Token.Type.Token)
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return false;
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parsedValue = new ProductHeaderValue ();
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parsedValue.Name = lexer.GetStringValue (t);
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t = lexer.Scan ();
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if (t == Token.Type.SeparatorSlash) {
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t = lexer.Scan ();
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if (t != Token.Type.Token)
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return false;
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parsedValue.Version = lexer.GetStringValue (t);
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t = lexer.Scan ();
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}
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return true;
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}
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public override string ToString ()
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{
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return Version == null ? Name : Name + "/" + Version;
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}
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}
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}
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