namespace RMuseum.Services.Implementation { /// /// Language Utilitis /// public static class LanguageUtils { /// /// Persian Alphabet /// public const string PersianAlphabet = "آابپتثجچحخدذرزژسشصضطظعغفقکگلمنوهیئؤ"; /// /// English Alphabet /// public const string EnglishLowerCaseAlphabet = "abcdefghijklmnopqrstuvwxyz"; /// /// Contains Only Specific Characters /// /// /// /// /// public static bool ContainsOnlySpecificCharacters(string input, string specfics, string additional= "") { string all = specfics + additional; foreach (char c in input) if (all.IndexOf(c) == -1) return false; return true; } } }