public CnfProduction(string lhs, string rhs1, string rhs2, int index)
: base(lhs, rhs2 != null ? string.Concat(rhs1, ' ', rhs2) : rhs1)
{
Index = index;
Rhs1 = rhs1;
Rhs2 = rhs2;
if (IsLexical)
{
if ((Rhs.Length > 3) && Rhs.StartsWith("@\"") && (Rhs[Rhs.Length - 1] == '"'))
{
Pattern = Rhs.Substring(2, Rhs.Length - 3);
}
else if ((Rhs.Length > 2) && (Rhs[0] == '"') && (Rhs[Rhs.Length - 1] == '"'))
{
Literal = Rhs.Substring(1, Rhs.Length - 2);
}
else
{
Literal = Rhs;
}
if (Pattern != null)
{
Acceptor = new Regex(string.Format("^({0})", Pattern), RegexOptions.Compiled);
}
}
}