System.Data.SqlClient.SqlConnection.SqlConnection.IsValidDatabaseName C# (CSharp) Method

		static bool IsValidDatabaseName (string database)
		{
			if ( database == null || database.Trim().Length == 0 || database.Length > 128)
				return false ;
			
			if (database[0] == '"' && database[database.Length] == '"')
				database = database.Substring (1, database.Length - 2);
			else if (Char.IsDigit (database[0]))
				return false;

			if (database[0] == '_')
				return false;

			foreach (char c  in database.Substring (1, database.Length - 1))
				if (!Char.IsLetterOrDigit (c) && c != '_' && c != '-')
					return false;
			return true;
		}