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52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
"""
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Helper methods to demangle an ILIAS date.
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"""
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import datetime
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import locale
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import logging
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import re
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from typing import Optional
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from ..logging import PrettyLogger
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LOGGER = logging.getLogger(__name__)
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PRETTY = PrettyLogger(LOGGER)
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def demangle_date(date: str) -> Optional[datetime.datetime]:
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"""
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Demangle a given date in one of the following formats:
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"Gestern, HH:MM"
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"Heute, HH:MM"
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"Morgen, HH:MM"
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"dd. mon yyyy, HH:MM
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"""
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saved = locale.setlocale(locale.LC_ALL)
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try:
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try:
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locale.setlocale(locale.LC_ALL, 'de_DE.UTF-8')
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except locale.Error:
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PRETTY.warning(
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"Could not set language to german. Assuming you use english everywhere."
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)
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date = re.sub(r"\s+", " ", date)
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date = re.sub("Gestern|Yesterday", _yesterday().strftime("%d. %b %Y"), date, re.I)
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date = re.sub("Heute|Today", datetime.date.today().strftime("%d. %b %Y"), date, re.I)
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date = re.sub("Morgen|Tomorrow", _tomorrow().strftime("%d. %b %Y"), date, re.I)
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return datetime.datetime.strptime(date, "%d. %b %Y, %H:%M")
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except ValueError:
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PRETTY.warning(f"Could not parse date {date!r}")
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return None
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finally:
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locale.setlocale(locale.LC_ALL, saved)
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def _yesterday() -> datetime.date:
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return datetime.date.today() - datetime.timedelta(days=1)
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def _tomorrow() -> datetime.date:
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return datetime.date.today() + datetime.timedelta(days=1)
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