/**
* Check for duplicates of an option. It is an error to have duplicates
* unless appropriate flags is set in descriptor.
*
* @param arguments
* the arguments
*/
private void CheckIncompatibilities(List <CLOption> arguments)
{
int size = arguments.Count;
for (int i = 0; i < size; i++)
{
CLOption option = arguments[i];
int id = option.GetDescriptor().GetId();
CLOptionDescriptor descriptor = GetDescriptorFor(id);
// this occurs when id == 0 and user has not supplied a descriptor
// for arguments
if (null == descriptor)
{
continue;
}
int[] incompatible = descriptor.GetIncompatible();
CheckIncompatible(arguments, incompatible, i);
}
}
private void CheckIncompatible(List <CLOption> arguments, int[] incompatible, int original)
{
int size = arguments.Count;
for (int i = 0; i < size; i++)
{
if (original == i)
{
continue;
}
CLOption option = arguments[i];
int id = option.GetDescriptor().GetId();
for (int j = 0; j < incompatible.Length; j++)
{
if (id == incompatible[j])
{
CLOption originalOption = arguments[original];
int originalId = originalOption.GetDescriptor().GetId();
String message = null;
if (id == originalId)
{
message = "Duplicate options for " + DescribeDualOption(originalId) + " found.";
}
else
{
message = "Incompatible options -" + DescribeDualOption(id) + " and "
+ DescribeDualOption(originalId) + " found.";
}
throw new Exception(message);
}
}
}
}
private void AddOption(CLOption option)
{
m_options.Add(option);
m_lastOptionId = option.GetDescriptor().GetId();
m_option = null;
}
private void AddOption(CLOption option)
{
m_options.Add(option);
m_lastOptionId = option.GetDescriptor().GetId();
m_option = null;
}
/**
* Actually parse arguments
*/
private void Parse()
{
if (0 == m_args.Length)
{
return;
}
m_stringLength = m_args[m_argIndex].Length;
while (true)
{
m_ch = PeekAtChar();
if (m_argIndex >= m_args.Length)
{
break;
}
if (null != m_control && m_control.isFinished(m_lastOptionId))
{
// this may need mangling due to peeks
m_unparsedArgs = SubArray(m_args, m_argIndex, m_stringIndex);
return;
}
if (STATE_OPTION_MODE == m_state)
{
// if get to an arg barrier then return to normal mode
// else continue accumulating options
if (0 == m_ch)
{
GetChar(); // strip the null
m_state = STATE_NORMAL;
}
else
{
ParseShortOption();
}
}
else if (STATE_NORMAL == m_state)
{
ParseNormal();
}
else if (STATE_NO_OPTIONS == m_state)
{
// should never get to here when stringIndex != 0
AddOption(new CLOption(m_args[m_argIndex++]));
}
else
{
ParseArguments();
}
}
// Reached end of input arguments - perform final processing
if (m_option != null)
{
if (STATE_OPTIONAL_ARG == m_state)
{
m_options.Add(m_option);
}
else if (STATE_REQUIRE_ARG == m_state)
{
CLOptionDescriptor descriptor = GetDescriptorFor(m_option.GetDescriptor().GetId());
String message = "Missing argument to option " + GetOptionDescription(descriptor);
throw new Exception(message);
}
else if (STATE_REQUIRE_2ARGS == m_state)
{
if (1 == m_option.GetArgumentCount())
{
m_option.AddArgument("");
m_options.Add(m_option);
}
else
{
CLOptionDescriptor descriptor = GetDescriptorFor(m_option.GetDescriptor().GetId());
String message = "Missing argument to option " + GetOptionDescription(descriptor);
throw new Exception(message);
}
}
else
{
throw new Exception("IllegalState " + m_state + ": " + m_option);
}
}
}