SecureDelete.FileSearch.ExpressionEvaluator.VerifyParantesis C# (CSharp) Method

        private bool VerifyParantesis(string expression)
        {
            int open = 0;
            int close = 0;
            int length = expression.Length;

            for(int i = 0; i < length; i++) {
                if(expression[i] == ExpressionStartChar) {
                    open++;
                }
                else if(expression[i] == ExpressionEndChar) {
                    close++;
                }
            }

            return open == close;
        }