// ReSharper disable once CheckNamespace namespace ExCSS { internal abstract class NthChildSelector : BaseSelector, IToString { public int Step; public int Offset; internal string FunctionText { get; set; } internal string FormatSelector(string functionName) { var format = Offset < 0 ? ":{0}({1}n{2})" : ":{0}({1}n+{2})"; return string.IsNullOrEmpty(FunctionText) ? string.Format(format, functionName, Step, Offset) : string.Format(":{0}({1})", functionName, FunctionText); } public abstract override string ToString(bool friendlyFormat, int indentation = 0); } }