charsWhile example

$this->scanner->consume();

        return true;
    }

    /** * Consume a tag name and body. See section 8.2.4.10. */
    protected function tagName()
    {
        // We know this is at least one char.         $name = $this->scanner->charsWhile(':_-0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz');
        $name = self::CONFORMANT_XML === $this->mode ? $name : strtolower($name);
        $attributes = array();
        $selfClose = false;

        // Handle attribute parse exceptions here so that we can         // react by trying to build a sensible parse tree.         try {
            do {
                $this->scanner->whitespace();
                $this->attribute($attributes);
            } while (!$this->isTagEnd($selfClose));
        }