public Lexica()
{
Rules = new TokenDefinition[]
{
new TokenDefinition(Token.Function, MathWrapper.GetMethodsRegex(options)), //0
new TokenDefinition(Token.Unar, unarRegex), //1
new TokenDefinition(Token.Variable, variableRegex), //2
new TokenDefinition(Token.Value, valueRegex), //3
new TokenDefinition(Token.Binar, binarRegex), //4
new TokenDefinition(Token.LeftBracket, leftBracketRegex), //5
new TokenDefinition(Token.RightBracket, rightBracketRegex), //6
new TokenDefinition(Token.SqLeftBracket, sqLeftBracketRegex), //7
new TokenDefinition(Token.SqRightBracket, sqRightBracketRegex), //8
new TokenDefinition(Token.Divider, dividerRegex) //9
};
}
private void PassFunction(Lexema lexema)
{
shuntingMachine.Push(lexema);
var argsCount = MathWrapper.GetFunctorFor(lexema.Represents).ParamsCount;
argumentsCountMachine.Push(argsCount);
argumentsRecievedMachine.Push(0);
if (wereArguments.Count != 0)
{
wereArguments.Pop();
wereArguments.Push(true);
}
wereArguments.Push(false);
}
private void BuildExpression()
{
if (LexicalQueue.Count == 1 && LexicalQueue.First.Value.Token == Token.Value)
{
variables[variableToken.Represents].Value = Number.Parse(LexicalQueue.First.Value.Represents);
return;
}
for (int i = 0; i < lexedExpression.LexicalQueue.Count; i++)
{
var lexema = lexedExpression.LexicalQueue.DequeueHead();
IFunctor functor;
switch (lexema.Token)
{
case Token.Value:
functor = new VoidFunctor().SetInnerArgs(new IValueHolder[]
{
new ValueHolder(Number.Parse(lexema.Represents))
});
break;
case Token.Variable:
if (variables.getters.ContainsKey(lexema.Represents))
{
functor = variables.getters[lexema.Represents];
}
else
{
functor = new ValueGetter(lexema.Represents, variables);
variables.getters.Add(lexema.Represents, functor as ValueGetter);
}
break;
case Token.Function:
functor = MathWrapper.GetFunctorFor(lexema.Represents);
break;
case Token.Binar:
functor = DefaultOperator.GetBySign(lexema.Represents);
break;
case Token.Unar:
functor = DefaultOperator.GetBySign(lexema.Represents, isUnar: true);
break;
default:
throw new ArgumentException($"Wrong input token {lexema.Represents} has arived " +
$"while translating \"{lexedExpression.Initial}\" on position {lexema.Position}! " +
$"TargetSet: {lexedExpression.TargetSet}");
}
result.members.Enqueue(functor);
lexedExpression.LexicalQueue.EnqueueTail(lexema);
}
}
