gistfile1.cs

// exemplo de código...
namespace EasySyntax.TestProject
{
    public class MyGramar : Grammar
    {
        public MyGramar()
        {
            Nonterminal("digt",
                     Or("0", "1", "2", "3", "4", "5", "6", "7", "8", "9"));

            Nonterminal("number",
                     Expr.digt.OrMore());

            Nonterminal("dot",
                     Symbol("."));

            Nonterminal("dbl",
                     And(Expr.number, Expr.dot, Expr.number));
        }
    }
}