def __zero_points__(calib):
    """
    Extracts the zero points from the HTML-code of a SVO filter web-page

    :param calib: The HTML-code of the zero-point part of a SVO filter web-page
    :type calib: str
    :return: The zero points in units of erg/cm2/s/A and in units of Jy
    :rtype: Union[float]
    """
    calib = calib.split('</table')[0]
    calib = calib.split('Zero Point')[-1]
    calib = calib.split('ZP Type')[0]
    calib = calib.split('<td nowrap>')[-8:-1]
    try:
        ergs = calib[1].split('</td')[0]
        ergs = float(ergs)
    except ValueError:
        ergs = calib[0].split('</td')[0]
        ergs = float(ergs)
    try:
        jy = calib[-2].split('</td')[0]
        jy = float(jy)
    except ValueError:
        jy = calib[-3].split('</td')[0]
        jy = float(jy)
    return ergs, jy
