internal int Execute(string program, string[] route, string[] args, CmdLineSettings settings)
{
try
{
var arg = args.FirstOrDefault();
var prefixes =
settings.OptionPrefixes.Select(c => c.ToString(CultureInfo.CurrentCulture))
.Concat(new[] {string.Empty});
var names = new[] {"?", "help"};
if (
prefixes.SelectMany(p => names.Select(n => p + n))
.Any(x => x.Equals(arg, StringComparison.CurrentCultureIgnoreCase)))
{
ShowHelp(program, route, settings);
return 0;
}
return ExecuteCommand(program, route, args, settings);
}
catch (ParserException exception)
{
using (Writer.Color(ConsoleColor.Red))
Writer.WriteLine(exception.Message);
return -10;
}
catch (Exception exception)
{
using (Writer.Color(ConsoleColor.Red))
Writer.WriteLine(exception.ToString());
return -1;
}
}
public int Execute(string[] args, CmdLineSettings settings = null)
{
var location = Assembly.GetEntryAssembly().Location;
var program = Path.GetFileName(location);
var route = new string[] { };
return Execute(program, route, args, settings ?? new CmdLineSettings());
}
protected abstract void ShowHelp(string program, string[] route, CmdLineSettings settings);
protected abstract int ExecuteCommand(string program, string[] route, string[] args, CmdLineSettings settings);
public CmdLineParser(CmdLineInputDefinition definition, CmdLineSettings settings)
{
_definition = definition;
_settings = settings;
}
private static IEnumerable<string> PreProcess(IEnumerable<string> strings, CmdLineSettings settings)
{
if (settings.OptionValueFormat == OptionValueFormat.Separated)
return strings;
var list = new List<string>();
foreach (var s in strings)
{
var index = s.IndexOf(settings.OptionNameValueSeparator);
if (index == -1)
{
list.Add(s);
}
else
{
list.Add(s.Substring(0, index));
list.AddRange(s.Substring(index + 1).Split(settings.OptionValueSeparator));
}
}
return list;
}