Bee4\RobotsTxt\Parser::parse()

Complexity

Conditions	11
Paths	30

Size

Total Lines	39
Code Lines	25

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	29
CRAP Score	11.0324

Importance

Changes	7
Bugs	1	Features	3

<?php
    public static function parse($content)
    {
        if (is_string($content)) {
            $content = new Content($content);
        }
        if (!($content instanceof Content)) {
            throw new RuntimeException(
                'You must use a `string` or a `Content` instance to the `Parser`!'
            );
        }

        $rules = new Rules();
        $userAgent = $rule = null;
        $separator = "\r\n";
        $line = strtok($content->get(), $separator);
        while ($line !== false) {
            if (strpos($line, '#') !== 0) {
                if (preg_match('/^User-Agent\: (.*)$/i', $line, $matches)) {
                    if ($userAgent !== null && $rule !== null) {
                        $rules->add($userAgent, $rule);
                    }
                    $userAgent = $matches[1];
                    $rule = new Rule();
                } elseif (preg_match('/^Allow: (.*)$/i', $line, $matches)) {
                    $rule->allow($matches[1]);
                } elseif (preg_match('/^Disallow: (.*)$/i', $line, $matches)) {
                    $rule->disallow($matches[1]);
                }
            }

            $line = strtok($separator);
        }
        //Handle the last item in the loop
        if ($rule instanceof Rule) {
            $rules->add($userAgent, $rule);
        }

        return $rules;
    }
}