public void Parse()
{
var script = new Script();
//script.globalEnv = GetGlobalEnv(tokens);
var functionTokens = SeparateFunctions();
var boop = ParseFunctions(functionTokens);
globalEnv = new Ast.Environment();
globalEnv.variables = new List <Variable>();
InterpretFunction(boop, "main");
}
public void InterpretFunction(List <Function> functions, string name)
{
var func = functions.SingleOrDefault(o => o.name == name);
var currentEnv = new Ast.Environment();
currentEnv.variables = new List <Variable>();
foreach (var stat in func.statements)
{
if (stat[0].Equals(Keywords.Var))
{
if (!(stat[1] is Identifier))
{
throw new FormatException("Expected an identifier after var", null);
}
if (!(stat[2].Equals(ArithmeticOperators.Equal)))
{
throw new FormatException("Expected = after identifier", null);
}
if ((stat[3] is int))
{
currentEnv.variables.Add(new DoubleVar()
{
identifier = stat[1] as Identifier, value = (int)stat[3]
});
}
else if (stat[3].Equals(Parentheses.OpenBr))
{
List <Variable> arr = new List <Variable>();
var i = 3;
while (!stat[i].Equals(Parentheses.CloseBr))
{
i++;
}
var content = stat.Skip(4).Take(i - 4).Where(o => !o.Equals(Special.Comma)).Select(o => Convert.ToDouble(o));
currentEnv.variables.Add(new ArrayVar()
{
identifier = stat[1] as Identifier, value = content.ToList()
});
}
}
else if (stat[0] is Identifier && stat[1].Equals(ArithmeticOperators.Equal))
{
if (!(stat[2] is int))
{
throw new FormatException("Expected an integer after =", null);
}
currentEnv.variables.FirstOrDefault(o => o.identifier.name == (stat[0] as Identifier).name).value = (int)stat[2];
}
else if (stat[0] is Identifier && (stat[1].Equals(Parentheses.OpenPar)))
{
if (!(stat[1].Equals(Parentheses.OpenPar)))
{
throw new FormatException("Invocation parentheses not closed", null);
}
InterpretFunction(functions, (stat[0] as Identifier).name);
}
else if (stat[0].Equals(Keywords.Print))
{
if (stat[1] is Identifier)
{
Console.WriteLine($"Function {name} printed: {currentEnv.variables.FirstOrDefault(o => o.identifier.name == (stat[1] as Identifier).name).value}\n");
}
if (stat[1] is int)
{
Console.WriteLine((int)stat[1]);
}
}
}
Console.WriteLine($"Function {name}, ended. Environment: ");
foreach (var variable in currentEnv.variables)
{
Console.WriteLine($" {variable.identifier.name} = {variable.value}");
}
Console.WriteLine();
}