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import re
import inflect
_inflect = inflect.engine()
_time_re = re.compile(
r"""\b
((0?[0-9])|(1[0-1])|(1[2-9])|(2[0-3])) # hours
:
([0-5][0-9]) # minutes
\s*(a\\.m\\.|am|pm|p\\.m\\.|a\\.m|p\\.m)? # am/pm
\b""",
re.IGNORECASE | re.X,
)
def _expand_num(n: int) -> str:
return _inflect.number_to_words(n)
def _expand_time_english(match: "re.Match") -> str:
hour = int(match.group(1))
past_noon = hour >= 12
time = []
if hour > 12:
hour -= 12
elif hour == 0:
hour = 12
past_noon = True
time.append(_expand_num(hour))
minute = int(match.group(6))
if minute > 0:
if minute < 10:
time.append("oh")
time.append(_expand_num(minute))
am_pm = match.group(7)
if am_pm is None:
time.append("p m" if past_noon else "a m")
else:
time.extend(list(am_pm.replace(".", "")))
return " ".join(time)
def expand_time_english(text: str) -> str:
return re.sub(_time_re, _expand_time_english, text)
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