CommandArgs.cs

CommandArgs.cs

public class CommandArgs
{
	private StringDictionary _parameters;

	public CommandArgs(string[] Args)
	{
		_parameters = new StringDictionary();
		Regex Spliter = new Regex(@"^-{1,2}|^/|=|:",
			RegexOptions.IgnoreCase | RegexOptions.Compiled);

		Regex Remover = new Regex(@"^['""]?(.*?)['""]?$",
			RegexOptions.IgnoreCase | RegexOptions.Compiled);

		string parameter = null;
		string[] parts;

		// Valid parameters forms:
		// {-,/,--}param{ ,=,:}((",')value(",'))
		// Examples: 
		// -param1 value1 --param2 /param3:"Test-:-work" 
		//   /param4=happy -param5 '--=nice=--'
		foreach (string Txt in Args)
		{
			// Look for new parameters (-,/ or --) and a
			// possible enclosed value (=,:)
			parts = Spliter.Split(Txt, 3);

			switch (parts.Length)
			{
				// Found a value (for the last parameter 
				// found (space separator))
				case 1:
					if (parameter != null)
					{
						if (!_parameters.ContainsKey(parameter))
						{
							parts[0] =
								Remover.Replace(parts[0], "$1");

							_parameters.Add(parameter, parts[0]);
						}
						parameter = null;
					}
					// else Error: no parameter waiting for a value (skipped)
					break;

				// Found just a parameter
				case 2:
					// The last parameter is still waiting. 
					// With no value, set it to true.
					if (parameter != null)
					{
						if (!_parameters.ContainsKey(parameter))
							_parameters.Add(parameter, "true");
					}
					parameter = parts[1];
					break;

				// Parameter with enclosed value
				case 3:
					// The last parameter is still waiting. 
					// With no value, set it to true.
					if (parameter != null)
					{
						if (!_parameters.ContainsKey(parameter))
							_parameters.Add(parameter, "true");
					}

					parameter = parts[1];

					// Remove possible enclosing characters (",')
					if (!_parameters.ContainsKey(parameter))
					{
						parts[2] = Remover.Replace(parts[2], "$1");
						_parameters.Add(parameter, parts[2]);
					}

					parameter = null;
					break;
			}
		}
		// In case a parameter is still waiting
		if (parameter != null)
		{
			if (!_parameters.ContainsKey(parameter))
				_parameters.Add(parameter, "true");
		}
	}

	public string this[string param]
	{
		get
		{
			return (_parameters[param]);
		}
	}
}