/home/ezyang/Dev/htmlpurifier/library/HTMLPurifier/TokenFactory.php

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<?php

class HTMLPurifier_TokenFactory
{

    // p stands for prototype
    private $p_start, $p_end, $p_empty, $p_text, $p_comment;

    public function __construct() {
        $this->p_start  = new HTMLPurifier_Token_Start('', array());
        $this->p_end    = new HTMLPurifier_Token_End('');
        $this->p_empty  = new HTMLPurifier_Token_Empty('', array());
        $this->p_text   = new HTMLPurifier_Token_Text('');
        $this->p_comment= new HTMLPurifier_Token_Comment('');
    }

    public function createStart($name, $attr = array()) {
        $p = clone $this->p_start;
        $p->__construct($name, $attr);
        return $p;
    }

    public function createEnd($name) {
        $p = clone $this->p_end;
        $p->__construct($name);
        return $p;
    }

    public function createEmpty($name, $attr = array()) {
        $p = clone $this->p_empty;
        $p->__construct($name, $attr);
        return $p;
    }

    public function createText($data) {
        $p = clone $this->p_text;
        $p->__construct($data);
        return $p;
    }

    public function createComment($data) {
        $p = clone $this->p_comment;
        $p->__construct($data);
        return $p;
    }

}

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