/// <summary>
/// Find error recovery state.
/// </summary>
/// <returns>result.</returns>
private bool FindErrorRecoveryState()
{
while (true) // pop states until one found that accepts error token
{
if (FsaState.ParserTable != null &&
FsaState.ParserTable.ContainsKey(errorToken) &&
FsaState.ParserTable[errorToken] > 0) // shift
{
return(true);
}
StateStack.Pop();
ValueStack.Pop();
LocationStack.Pop();
if (StateStack.IsEmpty())
{
return(false);
}
else
{
FsaState = StateStack.TopElement();
}
}
}