public static class ExtensionMethods
public static string EscapeLikeValue(this string raw)
if(string.IsNullOrEmpty(raw))
StringBuilder sb = new StringBuilder(raw.Length * 3);
for (int i = 0; i < raw.Length; i++)
public static void Main()
string excaped = ExtensionMethods.EscapeLikeValue(raw);
Console.WriteLine(excaped);