private static void Main(string[] args)
{
var lexer = new Lexer(new SimpleMathLexerLanguage());
while (true)
{
Console.ForegroundColor = ConsoleColor.Gray;
Console.Write("> ");
string inputExpression = Console.ReadLine() ?? "";
Highlight(lexer, inputExpression);
Describe(lexer, inputExpression);
MathValue result;
try
{
var expression = SimpleMathExpression.Compile(inputExpression);
result = expression.Evaluate();
}
catch (Exception exception)
{
WriteFormattedException(exception);
continue;
}
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine($"Result: {result}");
}
}
public void ImportValues()
{
var context = new MathContextBuilder()
.WithTerm("Width", new StaticValueProvider(10))
.Build();
string syntax = "10 * Width";
var intermediateExpression = SimpleMathExpression.Compile(syntax, context);
}
public void LogicOnTerms()
{
var contextA = new MathContextBuilder()
.WithTerm("Level", new StaticValueProvider(15))
.Build();
TestExpression(true, SimpleMathExpression.Compile("2 < Level", contextA));
TestExpression(true, SimpleMathExpression.Compile("15 == Level", contextA));
TestExpression(true, SimpleMathExpression.Compile("16 > Level", contextA));
}
public void OperateComparisons()
{
TestExpression(true, SimpleMathExpression.Compile("2 > 1"));
TestExpression(false, SimpleMathExpression.Compile("1 > 1"));
TestExpression(false, SimpleMathExpression.Compile("0 > 1"));
TestExpression(true, SimpleMathExpression.Compile("1 >= 1"));
TestExpression(false, SimpleMathExpression.Compile("2 <= 1"));
TestExpression(true, SimpleMathExpression.Compile("true | 2 < 1"));
}
public void OperateEquality()
{
// Equality Operators
TestExpression(true, SimpleMathExpression.Compile("1 == 1"));
TestExpression(false, SimpleMathExpression.Compile("1 != 1"));
TestExpression(false, SimpleMathExpression.Compile("1 == 10"));
TestExpression(true, SimpleMathExpression.Compile("true == true"));
TestExpression(false, SimpleMathExpression.Compile("true != true"));
TestExpression(true, SimpleMathExpression.Compile("false == false"));
TestExpression(false, SimpleMathExpression.Compile("false != false"));
}
public void ImportTerms()
{
var contextA = new MathContextBuilder()
.WithTerm("Width", 15)
.WithTerm("Height", 10)
.Build();
TestExpression(100, SimpleMathExpression.Compile("10 * Height", contextA));
TestExpression(25, SimpleMathExpression.Compile("width + Height", contextA));
TestExpression(25, SimpleMathExpression.Compile("wiDth + heiGHt", contextA));
TestExpression(20, SimpleMathExpression.Compile("Height * 2", contextA));
TestExpression(23, SimpleMathExpression.Compile("3 + Height * 2", contextA));
}
public void OperateMaths()
{
TestExpression(2, SimpleMathExpression.Compile("3 + -1"));
TestExpression(2, SimpleMathExpression.Compile("1 + (1)"));
// Add Operator
TestExpression(2, SimpleMathExpression.Compile("1 + 1"));
TestExpression(2, SimpleMathExpression.Compile("1 + 1"));
TestExpression(5, SimpleMathExpression.Compile("((1 + 3) + 1)"));
TestExpression(25, SimpleMathExpression.Compile("10+15"));
TestExpression(20, SimpleMathExpression.Compile("10 + 10"));
TestExpression(25, SimpleMathExpression.Compile("10 + 10 + 5"));
// Negative Numbers
TestExpression(2, SimpleMathExpression.Compile("3 + -1"));
TestExpression(3, SimpleMathExpression.Compile("-1 + 4"));
// Subtract Operator
TestExpression(2, SimpleMathExpression.Compile("3 - 1"));
// Multiply Operator
TestExpression(5, SimpleMathExpression.Compile("1 * 5"));
TestExpression(20, SimpleMathExpression.Compile("200 * 0.1"));
// Divide Operator
TestExpression(5, SimpleMathExpression.Compile("10 / 2"));
// Power Operator
TestExpression(27, SimpleMathExpression.Compile("3 ^ 3"));
TestExpression(27, SimpleMathExpression.Compile("3 ^ (1 + 2)"));
// Order of Operations Tests
TestExpression(-5, SimpleMathExpression.Compile("10 - 10 + 5"));
TestExpression(-5, SimpleMathExpression.Compile("10 -(10+ 5)"));
TestExpression(5, SimpleMathExpression.Compile("(10 - 10) + 5"));
TestExpression(12.564f, SimpleMathExpression.Compile("3.141 * 2^2"));
}
public void OperateLogic()
{
TestExpression(true, SimpleMathExpression.Compile("true"));
TestExpression(false, SimpleMathExpression.Compile("false"));
// AND Operator
TestExpression(true, SimpleMathExpression.Compile("true & true"));
TestExpression(false, SimpleMathExpression.Compile("true & false"));
TestExpression(false, SimpleMathExpression.Compile("false & true"));
TestExpression(false, SimpleMathExpression.Compile("false & false"));
// OR Operator
TestExpression(true, SimpleMathExpression.Compile("true | true"));
TestExpression(true, SimpleMathExpression.Compile("false | true"));
TestExpression(true, SimpleMathExpression.Compile("true | false"));
TestExpression(false, SimpleMathExpression.Compile("false | false"));
// NOT Operator
TestExpression(false, SimpleMathExpression.Compile("!true"));
TestExpression(true, SimpleMathExpression.Compile("!false"));
TestExpression(true, SimpleMathExpression.Compile("!(false)"));
TestExpression(false, SimpleMathExpression.Compile("!(30 > 10)"));
}
private static void TestExpression(MathValue expected, SimpleMathExpression expression)
{
Console.WriteLine(expression.ToString() + " = " + expected);
Describe(SimpleMathLexerLanguage.Lexer, expression.ToString());
Assert.AreEqual(expected, expression.Evaluate());
}
public void Compile() => SimpleMathExpression.Compile(Expression);
public void CompileBasicLogic()
{
string syntax = "10 > 5 == true";
var intermediateExpression = SimpleMathExpression.Compile(syntax);
}
public void Setup()
{
evaluateTarget = SimpleMathExpression.Compile(Expression);
}
public void CompileBasicMaths()
{
string syntax = "1 + 1 / 20";
var intermediateExpression = SimpleMathExpression.Compile(syntax);
}
public void OrderFromParanthesis()
{
string syntax = "(10 + 10) ^ 2";
var intermediateExpression = SimpleMathExpression.Compile(syntax);
}
public void CompileBranchingExpression()
{
string syntax = "10 * 10 + 2 * 2";
var intermediateExpression = SimpleMathExpression.Compile(syntax);
}
public void Setup()
{
evaluateTarget = SimpleMathExpression.Compile(Expression);
expressionEvaluatorInstance = new ExpressionEvaluator();
}
public void CompileComplexLogicMaths()
{
string syntax = "1 + (10 / 40) > 1 == true";
var intermediateExpression = SimpleMathExpression.Compile(syntax);
}
