public static Antlr4.Runtime.Misc.IntervalSet Or(Antlr4.Runtime.Misc.IntervalSet[] sets) { Antlr4.Runtime.Misc.IntervalSet r = new Antlr4.Runtime.Misc.IntervalSet(); foreach (Antlr4.Runtime.Misc.IntervalSet s in sets) { r.AddAll(s); } return r; }