// ********************************************************************************
/// <summary>
/// Create a new Command Argument Configurator class.
/// </summary>
/// <param name="console">The output console</param>
/// <param name="config">The parameter configuration</param>
/// <returns>CmdArgConfiguration</returns>
/// <created>GJK,23/10/2020</created>
/// <changed>GJK,23/10/2020</changed>
// ********************************************************************************
public CmdArgConfigurator(CmdArgConfiguration config, IStdOut console)
{
if (config == null)
{
throw new ArgumentNullException(nameof(config), "Configuration is required.");
}
_config = config;
Console = console;
}
// ********************************************************************************
/// <summary>
/// Create a new Command Argument Configurator class.
/// </summary>
/// <param name="config">The parameter configuration</param>
/// <returns>CmdArgConfiguration</returns>
/// <created>GJK,23/10/2020</created>
/// <changed>GJK,23/10/2020</changed>
// ********************************************************************************
public CmdArgConfigurator(CmdArgConfiguration config) : this(config, null)
{
}
// ********************************************************************************
/// <summary>
/// Parse and handle the arguments.
/// </summary>
/// <param name="configAction">The command line parameter configuration.</param>
/// <param name="stdOut">Output channel (default null)</param>
/// <param name="args">arguments</param>
/// <returns>A list with unrecognized command line arguments.</returns>
/// <created>GJK,23/10/2020</created>
/// <changed>GJK,23/10/2020</changed>
// ********************************************************************************
public static List <string> ParseArgs(Action <CmdArgConfigurator> configAction, IStdOut stdOut = null, params string[] args)
{
if (configAction == null)
{
throw new ArgumentNullException(nameof(configAction), "Expected a method for configurating the command arguments.");
}
var config = new CmdArgConfiguration();
var configurator = new CmdArgConfigurator(config);
try
{
configAction(configurator);
}
catch (Exception e)
{
throw new ArgumentException("Exception thrown in config action passed to CmdArgParser.Parse method. See inner exception for more details", e);
}
var extraArgs = new List <string>();
if (args.Length > 0)
{
foreach (var argument in args)
{
var argumentLC = argument.ToLower();
var argParsed = false;
foreach (var parameter in config.Parameters)
{
foreach (var key in parameter.Keys)
{
if (argumentLC.StartsWith(key))
{
var rightSide = argument.Substring(key.Length);
if (string.IsNullOrEmpty(rightSide))
{
parameter.Handler(string.Empty);
argParsed = true;
}
else if (rightSide.StartsWith(":"))
{
var value = rightSide.Substring(1);
parameter.Handler(value);
argParsed = true;
}
}
}
}
if (!argParsed)
{
extraArgs.Add(argument);
}
}
}
if (extraArgs.Count > 0 && config.ShowHelpOnExtraArguments)
{
stdOut?.WriteLine("Unrecognized arguments: ");
foreach (var extraArg in extraArgs)
{
stdOut?.WriteLine("Key: {0}", extraArg);
}
}
return(extraArgs);
}
