PropertyListIterator.php

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<?php

class HTMLPurifier_PropertyListIterator extends FilterIterator
{

    protected $l;
    protected $filter;

    public function __construct(Iterator $iterator, $filter = null) {
        parent::__construct($iterator);
        $this->l = strlen($filter);
        $this->filter = $filter;
    }

    public function accept() {
        $key = $this->getInnerIterator()->key();
        if( strncmp($key, $this->filter, $this->l) !== 0 ) {
            return false;
        }
        return true;
    }

}

// vim: et sw=4 sts=4