public TdfaSimulationLexer(TextReader textSource, ScannerDescriptor descriptor)
{
this.text = textSource.ReadToEnd();
this.descriptor = descriptor;
Dictionary <string, int> literalToAction = new Dictionary <string, int>();
var root = descriptor.MakeAst(literalToAction);
var regTree = new RegularTree(root);
var algorithm = new RegularToTdfaAlgorithm(regTree, literalToAction);
DescribeTdfa(algorithm.Data);
this.tdfa = new TdfaSimulation(algorithm.Data);
int count = descriptor.Matchers.Count;
this.tokenFactories = new TokenFactoryDelegate[count];
for (int i = 0; i != count; ++i)
{
if (descriptor.Matchers[i].Outcome != null)
{
tokenFactories[i] = BuildTokenFactory(descriptor.Matchers[i]);
}
}
}
private static bool CompileTdfa(ILogging logging, Condition condition, out ITdfaData outcome)
{
var descr = ScannerDescriptor.FromScanRules(condition.Matchers, logging);
var literalToAction = new Dictionary <string, int>();
var ast = descr.MakeAst(literalToAction);
if (ast == null)
{
outcome = null;
return(false);
}
var regTree = new RegularTree(ast);
outcome = new RegularToTdfaAlgorithm(regTree, literalToAction).Data;
condition.Joint.Add(outcome);
return(true);
}