in whisper/normalizers/basic.py [0:0]
def remove_symbols_and_diacritics(s: str, keep=""):
"""
Replace any other markers, symbols, and punctuations with a space,
and drop any diacritics (category 'Mn' and some manual mappings)
"""
return "".join(
(
c
if c in keep
else (
ADDITIONAL_DIACRITICS[c]
if c in ADDITIONAL_DIACRITICS
else (
""
if unicodedata.category(c) == "Mn"
else " " if unicodedata.category(c)[0] in "MSP" else c
)
)
)
for c in unicodedata.normalize("NFKD", s)
)