private static void GenerateScanner(string[] args)
{
bool fileArg = false;
TaskState task = new TaskState();
OptionState opResult = OptionState.clear;
if (args.Length == 0)
{
Usage("No arguments");
}
for (int i = 0; i < args.Length; i++)
{
if (args[i][0] == '/' || args[i][0] == '-')
{
string arg = args[i].Substring(1);
opResult = task.ParseOption(arg);
if (opResult != OptionState.clear &&
opResult != OptionState.needCodepageHelp &&
opResult != OptionState.needUsage)
{
BadOption(arg, opResult);
}
}
else if (i != args.Length - 1)
{
Usage("Too many arguments");
}
else
{
fileArg = true;
}
}
if (task.Version)
{
task.Msg.WriteLine("GPLEX version: " + task.VerString);
}
if (opResult == OptionState.needCodepageHelp)
{
CodepageHelp(fileArg);
}
if (opResult == OptionState.errors)
{
Usage(null); // print usage and abort
}
else if (!fileArg)
{
Usage("No filename");
}
else if (opResult == OptionState.needUsage)
{
Usage(); // print usage but do not abort
}
try
{
task.Process(args[args.Length - 1]);
}
catch (Exception ex)
{
if (ex is TooManyErrorsException)
{
return;
}
Console.Error.WriteLine(ex.Message);
throw;
}
finally
{
if (task.ErrNum + task.WrnNum > 0 || task.Listing)
{
task.MakeListing();
}
if (task.ErrNum + task.WrnNum > 0)
{
task.ErrorReport();
}
else if (task.Verbose)
{
task.Msg.WriteLine("GPLEX <" + task.FileName + "> Completed successfully");
}
task.Dispose();
}
}