public IReceiver <Msg> Next(Msg item)
{
// Skip valid tokens before the error which were used for local error recovery.
if (validPrefixVerifier != null)
{
validPrefixVerifier = validPrefixVerifier.Next(item);
if (validPrefixVerifier != null)
{
return(this);
}
}
var error = new Msg(PredefinedTokens.Error, null, errorLocation); // TODO: Location?
if (null != exit.CloneVerifier().ForceNext(error, item))
{
ReportError();
return(exit.ForceNext(error, item));
}
else if (grammar.IsBeacon(item.Id) &&
null != exit.CloneVerifier().ForceNext(item))
{
ReportError();
return(exit.ForceNext(item));
}
errorLocation += item.Location;
errorHLocation += item.HLocation;
collectedInput.Add(item);
return(this);
}
private bool ValidateCorrection()
{
IReceiver <Msg> r = exit.CloneVerifier();
int pos = 0;
int minLength = currentModel.GetMinimalLength();
foreach (var msg in correction)
{
r = r.Next(msg);
if (r == null)
{
return(false);
}
if (pos >= minLength && (PredefinedTokens.Eoi == msg.Id || grammar.IsBeacon(msg.Id)))
{
return(true);
}
++pos;
}
return(true);
}