public static Base64OptionType GetOptionType(string option)
{
Base64OptionType optionType = Base64OptionType.None;
foreach (var pair in Options)
{
foreach (var item in pair.Value)
{
if (item == option)
{
optionType = pair.Key;
break;
}
}
}
return(optionType);
}
private static Base64CommandLineOptions ParseOptions(CommandLineOptions commandLineOptions)
{
if (commandLineOptions == null)
{
throw new CommandLineException(string.Format(CultureInfo.CurrentCulture,
"Option used in invalid context -- {0}", "must specify a option."));
}
Base64CommandLineOptions targetOptions = new Base64CommandLineOptions();
if (commandLineOptions.Arguments.Count >= 0)
{
foreach (var arg in commandLineOptions.Arguments.Keys)
{
Base64OptionType optionType = Base64Options.GetOptionType(arg);
if (optionType == Base64OptionType.None)
{
throw new CommandLineException(
string.Format(CultureInfo.CurrentCulture, "Option used in invalid context -- {0}",
string.Format(CultureInfo.CurrentCulture, "cannot parse the command line argument : [{0}].", arg)));
}
switch (optionType)
{
case Base64OptionType.Decode:
targetOptions.IsSetDecode = true;
break;
case Base64OptionType.Encoding:
targetOptions.IsSetEncoding = true;
if (commandLineOptions.Arguments[arg].ToUpperInvariant() == @"ASCII")
{
targetOptions.Encoding = Encoding.ASCII;
}
else if (commandLineOptions.Arguments[arg].ToUpperInvariant() == @"UTF7")
{
targetOptions.Encoding = Encoding.UTF7;
}
else if (commandLineOptions.Arguments[arg].ToUpperInvariant() == @"UTF8")
{
targetOptions.Encoding = Encoding.UTF8;
}
else if (commandLineOptions.Arguments[arg].ToUpperInvariant() == @"UNICODE")
{
targetOptions.Encoding = Encoding.Unicode;
}
else if (commandLineOptions.Arguments[arg].ToUpperInvariant() == @"UTF32")
{
targetOptions.Encoding = Encoding.UTF32;
}
else if (commandLineOptions.Arguments[arg].ToUpperInvariant() == @"BIGENDIANUNICODE")
{
targetOptions.Encoding = Encoding.BigEndianUnicode;
}
else
{
throw new CommandLineException(string.Format(CultureInfo.CurrentCulture,
"Option used in invalid context -- {0}", "invalid encoding, support ASCII, UTF7, UTF8, UTF32, Unicode, BigEndianUnicode."));
}
break;
case Base64OptionType.Text:
targetOptions.IsSetText = true;
targetOptions.Text = commandLineOptions.Arguments[arg];
break;
case Base64OptionType.File:
targetOptions.IsSetFile = true;
targetOptions.File = commandLineOptions.Arguments[arg];
break;
case Base64OptionType.Help:
targetOptions.IsSetHelp = true;
break;
case Base64OptionType.Version:
targetOptions.IsSetVersion = true;
break;
}
}
}
if (commandLineOptions.Parameters.Count > 0)
{
if (!targetOptions.IsSetText)
{
targetOptions.IsSetText = true;
targetOptions.Text = commandLineOptions.Parameters.First();
}
}
return(targetOptions);
}
