Parses commandline into name value pairs

CommandLineParse.cs

	/// <summary>
	/// Parses commandline parameters that are in format of 
	/// -name:value
	/// /name=value
	/// -name="value 1"
	/// </summary>
	public static class CommandLineParser
	{
		private const string CommandLinePattern =
			"\\s+[-/](?<name>\\w+)[=:](?:(?<value>[^\\s\\:\"]+)|(?:\"(?<value>.*)\"))";

		private static readonly Regex _parser = new Regex(CommandLinePattern);

		public static NameValueCollection Parse(string commandLine)
		{
			if (commandLine == null)
				throw new ArgumentNullException("commandLine");

			var nameValueCollection = new NameValueCollection();

			Parse(commandLine, nameValueCollection);
			return nameValueCollection;

		}

		public static NameValueCollection Parse(string[] args)
		{
			var nameValueCollection = new NameValueCollection();
			foreach (var s in args)
			{
				Parse(s, nameValueCollection);
			}

			return nameValueCollection;
		}

		private static void Parse(string arg, NameValueCollection nvc)
		{
			if (!arg.StartsWith(" "))
				arg = " " + arg;

			var matchCollection = _parser.Matches(arg);
			foreach (Match match in matchCollection)
			{
				nvc.Add(match.Groups[1].Value, match.Groups[2].Value);
			}
		}

	}