import re


def get_ccs_pf_filters(ccs_root):
    """Returns list of PF Filters installed with passed ccs installation

    Args:
        ccs_root (str): full path to root of ccs installation

    Returns:
        list: list of PF Filters (strings) installed in ccs installation
    """
    pf_filters = list()
    with open(ccs_root + '/eclipse/ccs.properties') as f:
        lines = f.readlines()
        for line in lines:
            match = re.match("^PF_FILTERS=([a-zA-Z0-9\,]*)", line, flags=re.IGNORECASE)
            if match:
                pf_filters = match.group(1).split(',')
                break
    return pf_filters