/// <summary>
/// Parse a string[] of command-line arguments into a ScanArgs object.
/// </summary>
/// <exception cref="ArgumentException">Throws when an invalid switch is passed.</exception>
/// <param name="args">string[] of command-line arguments</param>
/// <returns></returns>
public static ScanArgs Parse(string[] args)
{
ScanArgs sargs = new ScanArgs();
if (args.Length == 0)
{
sargs.ShowHelp = true;
}
for (int i = 0; i < args.Length; i++)
{
//check if last arg is file or directory name (or at least not a switch starting with "-"
if (i == args.Length - 1 && !args[i].StartsWith("-"))
{
sargs.FileSystem = FileSystemFactory.CreateInstance(args[i]);
}
else
{
switch (args[i])
{
case FLAG_CLAMD_HOST_SHORT:
goto case FLAG_CLAMD_HOST_LONG;
case FLAG_CLAMD_HOST_LONG:
if (args.Length > i + 1 && !args[i + 1].StartsWith("-"))
{
sargs.Host = args[++i];
}
else
{
throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, ResourceManagers.Strings.GetString(STR_PARSE_ARGUMENT_EXCEPTION_HOSTNAME), FLAG_CLAMD_HOST_SHORT, FLAG_CLAMD_HOST_LONG));
}
break;
case FLAG_CLAMD_PORT_SHORT:
goto case FLAG_CLAMD_PORT_LONG;
case FLAG_CLAMD_PORT_LONG:
if (args.Length > i + 1 && !args[i + 1].StartsWith("-"))
{
try
{
sargs.Port = int.Parse(args[++i], CultureInfo.InvariantCulture);
}
catch (FormatException ex)
{
throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, ResourceManagers.Strings.GetString(STR_PARSE_ARGUMENT_EXCEPTION_PORT), ex.Message));
}
catch (OverflowException ex)
{
throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, ResourceManagers.Strings.GetString(STR_PARSE_ARGUMENT_EXCEPTION_PORT), ex.Message));
}
}
else
{
throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, ResourceManagers.Strings.GetString(STR_PARSE_ARGUMENT_EXCEPTION_PORT_MISSING), FLAG_CLAMD_PORT_SHORT, FLAG_CLAMD_PORT_LONG));
}
break;
case FLAG_VERSION_SHORT:
goto case FLAG_VERSION_LONG;
case FLAG_VERSION_LONG:
sargs.ShowVersion = true;
break;
case FLAG_HELP_SHORT:
goto case FLAG_HELP_LONG;
case FLAG_HELP_LONG:
sargs.ShowHelp = true;
break;
case FLAG_RECURSE_SHORT:
goto case FLAG_RECURSE_LONG;
case FLAG_RECURSE_LONG:
sargs.Recurse = true;
break;
case FLAG_VERBOSE_SHORT:
goto case FLAG_VERBOSE_LONG;
case FLAG_VERBOSE_LONG:
sargs.Verbose = true;
break;
default:
throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, ResourceManagers.Strings.GetString(STR_PARSE_ARGUMENT_EXCEPTION_UNKNOWN), args[1]));
}
}
}
return(sargs);
}
