Method visitExpressionNode has 39 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public function visitExpressionNode(ExpressionNode $node)
    {

        $operator = $node->getOperator();
        $left = $node->getLeft();

Function visitFunctionNode has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

Open

    public function visitFunctionNode(FunctionNode $node)
    {
        $inner = $node->getOperand()->accept($this);
        $arg = $node->getOperand();

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Method ifactor has 35 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public static function ifactor($n)
    {

        // max_n = 2^31-1 = 2147483647
        $d = 2;

Method visitExpressionNode has 35 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public function visitExpressionNode(ExpressionNode $node)
    {
        $operator = $node->getOperator();

        $a = $node->getLeft()->accept($this);

Method visitFunctionNode has 33 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public function visitFunctionNode(FunctionNode $node)
    {
        $functionName = $node->getName();

        $operand = $node->getOperand()->accept($this);

Function numericExponent has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.

Open

    private function numericExponent($leftOperand, $rightOperand)
    {
        // 0^0 throws an exception
        if ($this->isNumeric($leftOperand) && $this->isNumeric($rightOperand)) {
            if ($leftOperand->getValue() == 0 && $rightOperand->getValue() == 0)

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Method __construct has 31 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    function __construct($left, $operator = null, $right = null)
    {
        $this->left = $this->sanitize($left);
        $this->operator = $operator;
        $this->right = $this->sanitize($right);

Method fromFloat has 30 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public static function fromFloat($float, $tolerance=1e-7)
    {
        if (is_string($float) && preg_match('~^\-?\d+([,|.]\d+)?$~', $float)) {
            $float = floatval(str_replace(',','.',$float));
        }

Method parenthesize has 30 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public function parenthesize(Node $node, ExpressionNode $cutoff, $prepend = '', $conservative = false)
    {
        $text = $node->accept($this);

        if ($node instanceof ExpressionNode) {

Method rpow has 29 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    private function rpow($a, $b)
    {
        if ($b->getDenominator() == 1) {
            $n = $b->getNumerator();
            if ($n >= 0) {

Method handleExpression has 29 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    protected function handleExpression($node)
    {
        if ($node instanceof FunctionNode) throw new ParenthesisMismatchException($node->getOperator());
        if ($node instanceof SubExpressionNode) throw new ParenthesisMismatchException($node->getOperator());

Method visitExpressionNode has 28 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public function visitExpressionNode(ExpressionNode $node)
    {
        $operator = $node->getOperator();

        $leftValue = $node->getLeft()->accept($this);

Method visitExpressionNode has 27 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public function visitExpressionNode(ExpressionNode $node)
    {
        $operator = $node->getOperator();
        $left = $node->getLeft();
        $right = $node->getRight();

Method factory has 27 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public static function factory(Token $token)
    {
        switch ($token->getType()) {
            case TokenType::PosInt:
            case TokenType::Integer:

Method rationalFactory has 27 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public static function rationalFactory(Token $token)
    {
        switch ($token->getType()) {
            case TokenType::PosInt:
            case TokenType::Integer:

Method canFactorsInImplicitMultiplication has 26 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public static function canFactorsInImplicitMultiplication($token1, $token2)
    {
        if ($token1 === null || $token2 === null) return false;

        $check1 = (

Function visitExpressionNode has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

Open

    public function visitExpressionNode(ExpressionNode $node)
    {
        $operator = $node->getOperator();

        $leftValue = $node->getLeft()->accept($this);

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Function parse has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

Open

    public static function parse($value, $normalize=true)
    {
        if ($value === '') return null;
        if ($value === 'NAN') return new Rational(NAN, 1);
        if ($value === 'INF') return new Rational(INF, 1);

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Function numericFactors has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.

Open

    protected function numericFactors($leftOperand, $rightOperand)
    {
        if ($this->isNumeric($rightOperand) && $rightOperand->getValue() == 0) {
            throw new DivisionByZeroException();
        }

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Function rpow has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.

Open

    private function rpow($a, $b)
    {
        if ($b->getDenominator() == 1) {
            $n = $b->getNumerator();
            if ($n >= 0) {

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