private void GenerateScannerBaseClass()
{
Console.WriteLine("// Abstract base class for GPLEX scanners");
Console.WriteLine("{0} abstract class {1} : AbstractScanner<{2},{3}> {{",
grammar.Visibility, grammar.ScanBaseName, grammar.ValueTypeName, grammar.LocationTypeName);
Console.WriteLine(" private {0} __yylloc = new {0}();", grammar.LocationTypeName);
Console.Write(" public override {0} yylloc", grammar.LocationTypeName);
Console.WriteLine(" { get { return __yylloc; } set { __yylloc = value; } }");
Console.WriteLine(" protected virtual bool yywrap() { return true; }");
if (GPCG.Babel)
{
Console.WriteLine();
Console.WriteLine(" protected abstract int CurrentSc { get; set; }");
Console.WriteLine(" //");
Console.WriteLine(" // Override the virtual EolState property if the scanner state is more");
Console.WriteLine(" // complicated then a simple copy of the current start state ordinal");
Console.WriteLine(" //");
Console.WriteLine(" public virtual int EolState { get { return CurrentSc; } set { CurrentSc = value; } }");
Console.WriteLine('}');
Console.WriteLine();
Console.WriteLine("// Interface class for 'colorizing' scanners");
Console.WriteLine("public interface IColorScan {");
Console.WriteLine(" void SetSource(string source, int offset);");
Console.WriteLine(" int GetNext(ref int state, out int start, out int end);");
}
Console.WriteLine('}');
Console.WriteLine();
}
