Merge "Update fontchain _linter for new emoji"

    _emoji_zwj_sequences.update(parse_unicode_datafile(

        path.join(ucd_path, 'additions', 'emoji-zwj-sequences.txt')))

    exclusions = parse_unicode_datafile(path.join(ucd_path, 'additions', 'emoji-exclusions.txt'))

    _emoji_sequences = remove_emoji_exclude(_emoji_sequences, exclusions)

    _emoji_zwj_sequences = remove_emoji_exclude(_emoji_zwj_sequences, exclusions)

    _emoji_variation_sequences = remove_emoji_variation_exclude(_emoji_variation_sequences, exclusions)

def remove_emoji_variation_exclude(source, items):

    return source.difference(items.keys())

def remove_emoji_exclude(source, items):

    return {k: v for k, v in source.items() if k not in items}

def flag_sequence(territory_code):

    return tuple(0x1F1E6 + ord(ch) - ord('A') for ch in territory_code)

UNSUPPORTED_FLAGS = frozenset({

    flag_sequence('BL'), flag_sequence('BQ'), flag_sequence('DG'),

    flag_sequence('EA'), flag_sequence('EH'), flag_sequence('FK'),

    (0x1F9DD, FEMALE_SIGN), # ELF

    (0x1F9DE, FEMALE_SIGN), # GENIE

    (0x1F9DF, FEMALE_SIGN), # ZOMBIE

    (0X1F9B8, FEMALE_SIGN), # SUPERVILLAIN

    (0x1F9B9, FEMALE_SIGN), # SUPERHERO

]

def is_fitzpatrick_modifier(cp):