HTMLPurifier_Strategy_MakeWellFormed::processToken()

Complexity

Conditions	10
Paths	72

Size

Total Lines	50
Code Lines	23

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
    protected function processToken($token, $injector = -1)

The return type could not be reliably inferred; please add a @return annotation.

    {
        // Zend OpCache miscompiles $token = array($token), so
        // avoid this pattern.  See: https://github.com/ezyang/htmlpurifier/issues/108

        // normalize forms of token
        if (is_object($token)) {
            $tmp = $token;
            $token = array(1, $tmp);
        }
        if (is_int($token)) {
            $tmp = $token;
            $token = array($tmp);
        }
        if ($token === false) {
            $token = array(1);
        }
        if (!is_array($token)) {
            throw new HTMLPurifier_Exception('Invalid token type from injector');
        }
        if (!is_int($token[0])) {
            array_unshift($token, 1);
        }
        if ($token[0] === 0) {
            throw new HTMLPurifier_Exception('Deleting zero tokens is not valid');
        }

        // $token is now an array with the following form:
        // array(number nodes to delete, new node 1, new node 2, ...)

        $delete = array_shift($token);
        list($old, $r) = $this->zipper->splice($this->token, $delete, $token);

        if ($injector > -1) {
            // See Note [Injector skips]
            // Determine appropriate skips.  Here's what the code does:
            //  *If* we deleted one or more tokens, copy the skips
            //  of those tokens into the skips of the new tokens (in $token).
            //  Also, mark the newly inserted tokens as having come from
            //  $injector.
            $oldskip = isset($old[0]) ? $old[0]->skip : array();
            foreach ($token as $object) {
                $object->skip = $oldskip;
                $object->skip[$injector] = true;
            }
        }

        return $r;

    }