public static object?ParseOption(CmdLineOption option, string rawValue, out string?errorMessage)
{
Type theDataType = option.DataType;
if (rawValue.TryConvert(theDataType, CultureInfo.InvariantCulture, out object?theConvertedValue))
{
errorMessage = null;
return(theConvertedValue);
}
else
{
errorMessage = $"Value \"{rawValue}\" for option {option.ToLongCmdLineString()} is invalid.";
return(null);
}
}
public List <CmdLineToken> Tokenize(string[] args, ref CmdLineSubcommand?subcommand)
{
var theResult = new List <CmdLineToken>();
var theExclusionGroupCounts = new Dictionary <string, List <CmdLineOption> >();
int theParameterIndex = 0;
for (int theIndex = 0; theIndex < args.Length; theIndex++)
{
string theArg = args[theIndex];
if (theIndex == 0 && myDefinition.HasDifferentiatedSubcommands)
{
// Muss Subcommand sein
subcommand = myDefinition.Subcommands.SingleOrDefault(sc => sc.Name == theArg);
if (subcommand != null)
{
theResult.Add(new CmdLineToken(CmdLineTokenKind.Subcommand, theArg));
continue;
}
else
{
if (theArg.StartsWith("-"))
{
myUsageWriter.WriteAndExit("Subcommand is missing.");
}
else
{
myUsageWriter.WriteAndExit($"Unknown subcommand: {theArg}");
}
}
}
if (theArg.StartsWith("-"))
{
// Option
if (subcommand == null)
{
myUsageWriter.WriteAndExit();
}
else
{
bool isLongNameOption = theArg.StartsWith("--");
string theOptionTextWithoutDashes = isLongNameOption ? theArg.Substring(2) : theArg.Substring(1);
CmdLineOption theOption =
isLongNameOption ?
subcommand.Options.SingleOrDefault(o => o.LongName == theOptionTextWithoutDashes) :
subcommand.Options.SingleOrDefault(o => o.Letter.ToString() == theOptionTextWithoutDashes);
if (theOption != null)
{
foreach (string theExclusionGroup in theOption.ExclusionGroups)
{
if (theExclusionGroupCounts.TryGetValue(theExclusionGroup,
out List <CmdLineOption> theOptions))
{
theOptions.Add(theOption);
theExclusionGroupCounts[theExclusionGroup] = theOptions;
}
else
{
theOptions = new List <CmdLineOption> {
theOption
};
theExclusionGroupCounts[theExclusionGroup] = theOptions;
}
}
object?theValue = true;
if (!theOption.IsSwitch)
{
if (theIndex < args.Length - 1)
{
theIndex++;
string theRawValue = args[theIndex];
theValue = ParseUtils.ParseOption(theOption, theRawValue, out string?theErrorMessage);
if (theErrorMessage != null)
{
myUsageWriter.WriteAndExit(subcommand, theErrorMessage);
}
}
else
{
// Value kommt nicht
myUsageWriter.WriteAndExit(
subcommand,
$"Missing value for option {theOption.ToLongCmdLineString()}."
);
}
}
theResult.Add(
new CmdLineToken(CmdLineTokenKind.Option, theOption.Letter.ToString())
{
Value = theValue !
}