Loader\ColonType::surveyToken PHP Method

    public function surveyToken($token)
    {
        if ($this->checkNext) {
            $this->checkNext = false;
            if (!is_string($token) || $token != ':') {
                // dropping non-alternative if.
                array_pop($this->association);
            }
        }
        if (is_array($token)) {
            if (isset($this->waitFor['array'][$token[3]])) {
                $this->association[] = $this->waitFor['array'][$token[3]];
                if (isset($this->tokenWithParenthesis[$token[3]])) {
                    $this->parenthesisStack[$this->parenthesisLevel] = 1;
                }
                if ($token[3] == 'T_ELSE') {
                    $this->checkNext = true;
                }
            }
        } else {
            if (isset($this->waitFor['string'][$token])) {
                $this->association[] = $this->waitFor['string'][$token];
            }
            if ($token == '(') {
                ++$this->parenthesisLevel;
            } elseif ($token == ')') {
                --$this->parenthesisLevel;
                if (isset($this->parenthesisStack[$this->parenthesisLevel])) {
                    $this->checkNext = true;
                    unset($this->parenthesisStack[$this->parenthesisLevel]);
                }
            }
        }
        return null;
    }