示例#1
0
        // build/get static keyword table
        Dictionary <string, FunctionDefinition> GetFunctionTable()
        {
            if (_fnTbl == null)
            {
                // create table
                _fnTbl = new Dictionary <string, FunctionDefinition>(StringComparer.InvariantCultureIgnoreCase);

                // register built-in functions (and constants)
                Logical.Register(this);
                MathTrig.Register(this);
                Text.Register(this);
                Statistical.Register(this);
            }
            return(_fnTbl);
        }
示例#2
0
        public void Test()
        {
            // adjust culture
            var cultureInfo = this.CultureInfo;

            this.CultureInfo = System.Globalization.CultureInfo.InvariantCulture;

            // test internal operators
            Test("0", 0.0);
            Test("+1", 1.0);
            Test("-1", -1.0);
            Test("1+1", 1 + 1.0);
            Test("1*2*3*4*5*6*7*8*9", 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9.0);
            Test("1/(1+1/(1+1/(1+1/(1+1/(1+1/(1+1/(1+1/(1+1/(1+1/(1+1))))))))))", 1 / (1 + 1 / (1 + 1 / (1 + 1 / (1 + 1 / (1 + 1 / (1 + 1 / (1 + 1 / (1 + 1 / (1 + 1 / (1 + 1.0)))))))))));
            Test("((1+2)*(2+3)/(4+5))^0.123", Math.Pow((1 + 2) * (2 + 3) / (4 + 5.0), 0.123));
            Test("10%", 0.1);
            Test("1e+3", 1000.0);

            // test simple variables
            Variables.Add("one", 1);
            Variables.Add("two", 2);
            Test("one + two", 3);
            Test("(two + two)^2", 16);
            Variables.Clear();

            // test DataContext
            var dc = DataContext;
            var p  = Person.CreateTestPerson();

            DataContext = p;
            Test("Name", "Test Person");
            Test("Name.Length * 2", p.Name.Length * 2);
            Test("Children.Count", p.Children.Count);
            Test("Children(2).Name", p.Children[2].Name);
            Test("ChildrenDct(\"Test Child 2\").Name", p.ChildrenDct["Test Child 2"].Name);
            Test("ChildrenDct.Count", p.ChildrenDct.Count);
            DataContext = dc;

            // test functions
            Logical.Test(this);
            MathTrig.Test(this);
            Text.Test(this);
            Statistical.Test(this);

            // restore culture
            this.CultureInfo = cultureInfo;
        }