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267 | """Transform functions."""
import re
from .utils import (
Date,
InterventionDataForDateNormalizationRowSchema,
Precision,
)
DAY_PATTERN = r"(\d{1,2})"
MONTH_PATTERN = r"\b(gennaio|febbraio|marzo|aprile|maggio|giugno|luglio|agosto|settembre|ottobre|novembre|dicembre)\b"
YEAR_PATTERN = r"(\d{4})"
# ----- PARTICULAR PATTERNS -----
def get_day_period(
row: InterventionDataForDateNormalizationRowSchema,
) -> Date | None:
"""Extract a precise date period from a string of 2 dates separated by an hyphen."""
s = row.data_intervento.lower()
pattern = (
r"(\d{1,2})\s+([a-zA-Z]+)\s*-\s*(\d{1,2})\s+([a-zA-Z]+)\s+(\d{4})"
)
pattern_without_year = (
r"(\d{1,2})\s+([a-zA-Z]+)\s*-\s*(\d{1,2})\s+([a-zA-Z]+)"
)
m = re.fullmatch(pattern, s)
if m:
day1, month1, day2, month2, year = m.groups()
return Date(
f"{day1}/{month1}/{year}", f"{day2}/{month2}/{year}", "day"
)
m = re.fullmatch(pattern_without_year, s)
if m:
day1, month1, day2, month2 = m.groups()
year = row.anno
return Date(
f"{day1}/{month1}/{year}", f"{day2}/{month2}/{year}", "day"
)
return None
def get_single_day_period(
row: InterventionDataForDateNormalizationRowSchema,
) -> Date | None:
"""Extract a single date with a day."""
s = row.data_intervento
pattern_without_year = r"(\d{1,2})\s+([a-zA-Z]+)"
pattern_with_year = pattern_without_year + r"\s+(\d{4})"
m_with_year = re.fullmatch(pattern_with_year, s)
if m_with_year:
day1, month1, year = m_with_year.groups()
return Date(
f"{day1}/{month1}/{year}", f"{day1}/{month1}/{year}", "day"
)
m_without_year = re.fullmatch(pattern_without_year, s)
if m_without_year:
day1, month1 = m_without_year.groups()
year1 = row.anno
return Date(
f"{day1}/{month1}/{year1}", f"{day1}/{month1}/{year1}", "day"
)
return None
def get_month_period(
row: InterventionDataForDateNormalizationRowSchema,
) -> Date | None:
"""Extract a month period from a string of 2 months separated by an hyphen."""
s = row.data_intervento
pattern = r"([a-zA-Z]+)\s+(\d{4})\s*-\s*([a-zA-Z]+)\s+(\d{4})"
pattern_with_year_on_right = r"([a-zA-Z]+)\s*-\s*([a-zA-Z]+)\s+(\d{4})"
pattern_without_year = r"([a-zA-Z]+)\s*-\s*([a-zA-Z]+)"
m = re.fullmatch(pattern, s)
if m:
month1, year1, month2, year2 = m.groups()
return Date(f"{1}/{month1}/{year1}", f"{28}/{month2}/{year2}", "month")
m = re.fullmatch(pattern_with_year_on_right, s)
if m:
month1, month2, year = m.groups()
return Date(f"{1}/{month1}/{year}", f"{28}/{month2}/{year}", "month")
m = re.fullmatch(pattern_without_year, s)
if m:
month1, month2 = m.groups()
year = row.anno
return Date(f"{1}/{month1}/{year}", f"{28}/{month2}/{year}", "month")
return None
def get_single_month_period(
row: InterventionDataForDateNormalizationRowSchema,
) -> Date | None:
"""Extract a single month period."""
s = row.data_intervento
pattern_without_year = r"([a-zA-Z]+)"
pattern_with_year = pattern_without_year + r"\s+(\d{4})"
m_with_year = re.fullmatch(pattern_with_year, s)
if m_with_year:
month1, year1 = m_with_year.groups()
return Date(f"{1}/{month1}/{year1}", f"{28}/{month1}/{year1}", "month")
m_without_year = re.fullmatch(pattern_without_year, s)
if m_without_year:
(month1,) = m_without_year.groups()
year1 = row.anno
return Date(f"{1}/{month1}/{year1}", f"{28}/{month1}/{year1}", "month")
return None
def start_year(
row: InterventionDataForDateNormalizationRowSchema,
) -> Date | None:
"""Extract a year, meaning a year when the intervention has started."""
s = row.data_intervento
pattern = r"(\d{4})\s*-\s*"
m = re.fullmatch(pattern, s)
if not m:
return None
start_year = m.groups()
final_year = row.anno
return Date(f"{1}/{1}/{start_year}", f"{31}/{12}/{final_year}", "year")
# ----- PARTICULAR PATTERNS -----
# ----- GENERIC PATTERNS -----
def _get_d_y_m(ds: str) -> tuple[str | None, str | None, str | None]:
ds = ds.strip().lower()
d_m_y__pattern = rf"{DAY_PATTERN}\s+{MONTH_PATTERN}\s+{YEAR_PATTERN}"
d_m__pattern = rf"{DAY_PATTERN}\s+{MONTH_PATTERN}"
m_y__pattern = rf"{MONTH_PATTERN}\s+{YEAR_PATTERN}"
y__pattern = YEAR_PATTERN
m__pattern = MONTH_PATTERN
d__pattern = DAY_PATTERN
m = re.fullmatch(d_m_y__pattern, ds)
if m:
day, month, year = m.groups()
return (day, month, year)
m = re.fullmatch(d_m__pattern, ds)
if m:
day, month = m.groups()
return (day, month, None)
m = re.fullmatch(m_y__pattern, ds)
if m:
month, year = m.groups()
return (None, month, year)
m = re.fullmatch(y__pattern, ds)
if m:
(year,) = m.groups()
return None, None, year
m = re.fullmatch(m__pattern, ds)
if m:
(month,) = m.groups()
return None, month, None
m = re.fullmatch(d__pattern, ds)
if m:
(day,) = m.groups()
return day, None, None
return None, None, None
def generic_period(
row: InterventionDataForDateNormalizationRowSchema,
) -> Date | None:
"""Process a generic period of 2 dates separated by an hyphen.
Notes:
If 2 dates are given, usually it is not a window of time for the start of
the intervention but the start and the end dates of the intervention.
"""
s = row.data_intervento
split_pattern = r"\s*-\s*"
splits = re.split(split_pattern, s)
if len(splits) != 2:
return None
start, end = tuple(map(_get_d_y_m, splits))
if start == (None, None, None) and end == (None, None, None):
return None
precision: Precision = "day"
if start[0] is None and end[0] is None:
if start[1] is None and end[1] is None:
precision = "year"
else:
precision = "month"
return Date(
"/".join(
(
start[0] if start[0] is not None else str(1),
start[1]
if start[1] is not None
else (end[1] if end[1] is not None else str(1)),
start[2]
if start[2] is not None
else (end[2] if end[2] is not None else str(row.anno)),
)
),
"/".join(
(
end[0]
if end[0] is not None
else (str(31) if precision == "year" else str(28)),
end[1] if end[1] is not None else str(12),
end[2]
if end[2] is not None
else str(row.anno),
)
),
precision,
)
def generic_single_period(
row: InterventionDataForDateNormalizationRowSchema,
) -> Date | None:
"""Process a single period with the day, month or year precision."""
d, m, y = _get_d_y_m(row.data_intervento)
if (d, m, y) == (None, None, None):
return None
y = y if y is not None else str(row.anno)
if m is None:
return Date(f"{1}/{1}/{y}", f"{31}/{12}/{y}", "year")
if d is None:
return Date(f"{1}/{m}/{y}", f"{28}/{m}/{y}", "month")
return Date(f"{d}/{m}/{y}", f"{d}/{m}/{y}", "day")
def precised_numeric_start_date(
row: InterventionDataForDateNormalizationRowSchema,
) -> Date | None:
"""Process a precise date in the format day/month/year."""
date_pattern = r"(\d{1,2})\/(\d{1,2})\/(\d{4})"
m = re.fullmatch(date_pattern, row.data_intervento.strip())
if m:
d, m, y = m.groups()
return Date(f"{d}/{m}/{y}", f"{d}/{m}/{y}", "day")
return None
def before_day_month(
row: InterventionDataForDateNormalizationRowSchema,
) -> Date | None:
"""Return only the most recent day before which the intervention could happen."""
s = row.data_intervento.strip()
pattern = r"(?:pre|[a,A]nte|prima di|prima del)\s*(.*)"
m = re.fullmatch(pattern, s)
if not m:
return None
(final_date_str,) = m.groups()
d, m, y = _get_d_y_m(final_date_str)
y = y if y is not None else row.anno
precision: Precision = (
"day" if d is not None else ("month" if m is not None else "year")
)
m = m if m is not None else 12
d = d if d is not None else (31 if precision == "year" else 28)
return Date(
"<UNKNOWN>",
f"{d}/{m}/{y}",
"day",
)
# ----- GENERIC PATTERNS -----
|