/******** Grammaire : à faire **********/
float F(float x)
{
    if (currentToken()->type == VAR)
    {
        consume(VAR);
        return x;
    }
    else if (currentToken()->type == NUMBER)
    {
        consume(NUMBER);
        return x;
    }
    else if (currentToken()->type == LB)
    {
        consume(LB);
        return A(x);
        consume(RB);
    }
}
float Tp(float x)
{
    if (currentToken()->type == MULT || currentToken()->type == DIV)
    {
        consume(currentToken()->type);
        x=F(x);
        return Tp(x);
    }else
    {
        return x;
    }

}
float T(float x)
{
    x=F(x);
    return Tp(x);
}
float Ep(float x)
{
    if (currentToken()->type == MINUS || currentToken()->type == PLUS)
    {
        consume(currentToken()->type);
        x=T(x);
        return Ep(x);
    }else
    {
        return x;
    }

}
float E(float x)
{
    x=T(x);
    return Ep(x);
}
float A(float x)
{
    if (currentToken()->type == VAR)
    {
        consume(VAR);
        consume(ASSIGN);
        return A(x);
    }
    else
    {
        return E(x);
    }
}
void Sp(float x)
{
    A(x);
    consume(SEMICOLON);
    printf("%f",x);
}

/******** Exemple de programme principal (lecture du fichier passé en paramètres ******/
int main(int argc, char *argv[])
{
    fprintf(stderr, "Lexing from %s.\n", argv[1]);
    initLexer(argv[1]);
    // Appeler la racine de la grammaire...
    Sp(0);
    // Vérifier que tout le programme a été lu...