C# (CSharp) Nicodem.Lexer RegExFactory.Empty Examples

Example #1

 // epsi^a = empty ?
 public override RegEx <T> Derivative(T c)
 {
     return(RegExFactory.Empty <T>());
 }

Example #2

File: RegExRange.cs Project: Maciej-Poleski/KO-Nicodem

 // [a...) = sum( {a}, {a+1}, {a+2}, ... )
 // [a...)^x = sum( {a}, ... )^x = sum( {a}^x, {a+1}^x, ... )
 // = epsilon if x >= a else empty
 public override RegEx <T> Derivative(T c)
 {
     return(Character.CompareTo(c) <= 0 ? RegExFactory.Epsilon <T>() : RegExFactory.Empty <T>());
 }