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env/lib/python3.11/site-packages/isodate/isostrf.py
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env/lib/python3.11/site-packages/isodate/isostrf.py
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"""
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This module provides an alternative strftime method.
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The strftime method in this module allows only a subset of Python's strftime
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format codes, plus a few additional. It supports the full range of date values
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possible with standard Python date/time objects. Furthermore there are several
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pr-defined format strings in this module to make ease producing of ISO 8601
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conforming strings.
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"""
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import re
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from datetime import date, timedelta
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from isodate.duration import Duration
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from isodate.isotzinfo import tz_isoformat
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# Date specific format strings
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DATE_BAS_COMPLETE = "%Y%m%d"
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DATE_EXT_COMPLETE = "%Y-%m-%d"
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DATE_BAS_WEEK_COMPLETE = "%YW%W%w"
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DATE_EXT_WEEK_COMPLETE = "%Y-W%W-%w"
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DATE_BAS_ORD_COMPLETE = "%Y%j"
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DATE_EXT_ORD_COMPLETE = "%Y-%j"
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DATE_BAS_WEEK = "%YW%W"
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DATE_EXT_WEEK = "%Y-W%W"
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DATE_BAS_MONTH = "%Y%m"
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DATE_EXT_MONTH = "%Y-%m"
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DATE_YEAR = "%Y"
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DATE_CENTURY = "%C"
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# Time specific format strings
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TIME_BAS_COMPLETE = "%H%M%S"
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TIME_EXT_COMPLETE = "%H:%M:%S"
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TIME_BAS_MINUTE = "%H%M"
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TIME_EXT_MINUTE = "%H:%M"
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TIME_HOUR = "%H"
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# Time zone formats
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TZ_BAS = "%z"
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TZ_EXT = "%Z"
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TZ_HOUR = "%h"
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# DateTime formats
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DT_EXT_COMPLETE = DATE_EXT_COMPLETE + "T" + TIME_EXT_COMPLETE + TZ_EXT
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DT_BAS_COMPLETE = DATE_BAS_COMPLETE + "T" + TIME_BAS_COMPLETE + TZ_BAS
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DT_EXT_ORD_COMPLETE = DATE_EXT_ORD_COMPLETE + "T" + TIME_EXT_COMPLETE + TZ_EXT
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DT_BAS_ORD_COMPLETE = DATE_BAS_ORD_COMPLETE + "T" + TIME_BAS_COMPLETE + TZ_BAS
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DT_EXT_WEEK_COMPLETE = DATE_EXT_WEEK_COMPLETE + "T" + TIME_EXT_COMPLETE + TZ_EXT
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DT_BAS_WEEK_COMPLETE = DATE_BAS_WEEK_COMPLETE + "T" + TIME_BAS_COMPLETE + TZ_BAS
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# Duration formts
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D_DEFAULT = "P%P"
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D_WEEK = "P%p"
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D_ALT_EXT = "P" + DATE_EXT_COMPLETE + "T" + TIME_EXT_COMPLETE
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D_ALT_BAS = "P" + DATE_BAS_COMPLETE + "T" + TIME_BAS_COMPLETE
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D_ALT_EXT_ORD = "P" + DATE_EXT_ORD_COMPLETE + "T" + TIME_EXT_COMPLETE
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D_ALT_BAS_ORD = "P" + DATE_BAS_ORD_COMPLETE + "T" + TIME_BAS_COMPLETE
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STRF_DT_MAP = {
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"%d": lambda tdt, yds: "%02d" % tdt.day,
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"%f": lambda tdt, yds: "%06d" % tdt.microsecond,
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"%H": lambda tdt, yds: "%02d" % tdt.hour,
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"%j": lambda tdt, yds: "%03d"
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% (tdt.toordinal() - date(tdt.year, 1, 1).toordinal() + 1),
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"%m": lambda tdt, yds: "%02d" % tdt.month,
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"%M": lambda tdt, yds: "%02d" % tdt.minute,
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"%S": lambda tdt, yds: "%02d" % tdt.second,
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"%w": lambda tdt, yds: "%1d" % tdt.isoweekday(),
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"%W": lambda tdt, yds: "%02d" % tdt.isocalendar()[1],
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"%Y": lambda tdt, yds: (((yds != 4) and "+") or "") + (("%%0%dd" % yds) % tdt.year),
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"%C": lambda tdt, yds: (((yds != 4) and "+") or "")
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+ (("%%0%dd" % (yds - 2)) % (tdt.year / 100)),
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"%h": lambda tdt, yds: tz_isoformat(tdt, "%h"),
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"%Z": lambda tdt, yds: tz_isoformat(tdt, "%Z"),
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"%z": lambda tdt, yds: tz_isoformat(tdt, "%z"),
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"%%": lambda tdt, yds: "%",
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}
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STRF_D_MAP = {
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"%d": lambda tdt, yds: "%02d" % tdt.days,
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"%f": lambda tdt, yds: "%06d" % tdt.microseconds,
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"%H": lambda tdt, yds: "%02d" % (tdt.seconds / 60 / 60),
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"%m": lambda tdt, yds: "%02d" % tdt.months,
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"%M": lambda tdt, yds: "%02d" % ((tdt.seconds / 60) % 60),
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"%S": lambda tdt, yds: "%02d" % (tdt.seconds % 60),
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"%W": lambda tdt, yds: "%02d" % (abs(tdt.days / 7)),
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"%Y": lambda tdt, yds: (((yds != 4) and "+") or "")
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+ (("%%0%dd" % yds) % tdt.years),
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"%C": lambda tdt, yds: (((yds != 4) and "+") or "")
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+ (("%%0%dd" % (yds - 2)) % (tdt.years / 100)),
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"%%": lambda tdt, yds: "%",
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}
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def _strfduration(tdt, format, yeardigits=4):
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"""
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this is the work method for timedelta and Duration instances.
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see strftime for more details.
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"""
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def repl(match):
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"""
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lookup format command and return corresponding replacement.
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"""
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if match.group(0) in STRF_D_MAP:
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return STRF_D_MAP[match.group(0)](tdt, yeardigits)
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elif match.group(0) == "%P":
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ret = []
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if isinstance(tdt, Duration):
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if tdt.years:
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ret.append("%sY" % abs(tdt.years))
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if tdt.months:
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ret.append("%sM" % abs(tdt.months))
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usecs = abs(
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(tdt.days * 24 * 60 * 60 + tdt.seconds) * 1000000 + tdt.microseconds
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)
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seconds, usecs = divmod(usecs, 1000000)
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minutes, seconds = divmod(seconds, 60)
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hours, minutes = divmod(minutes, 60)
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days, hours = divmod(hours, 24)
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if days:
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ret.append("%sD" % days)
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if hours or minutes or seconds or usecs:
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ret.append("T")
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if hours:
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ret.append("%sH" % hours)
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if minutes:
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ret.append("%sM" % minutes)
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if seconds or usecs:
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if usecs:
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ret.append(("%d.%06d" % (seconds, usecs)).rstrip("0"))
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else:
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ret.append("%d" % seconds)
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ret.append("S")
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# at least one component has to be there.
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return ret and "".join(ret) or "0D"
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elif match.group(0) == "%p":
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return str(abs(tdt.days // 7)) + "W"
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return match.group(0)
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return re.sub("%d|%f|%H|%m|%M|%S|%W|%Y|%C|%%|%P|%p", repl, format)
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def _strfdt(tdt, format, yeardigits=4):
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"""
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this is the work method for time and date instances.
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see strftime for more details.
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"""
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def repl(match):
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"""
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lookup format command and return corresponding replacement.
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"""
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if match.group(0) in STRF_DT_MAP:
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return STRF_DT_MAP[match.group(0)](tdt, yeardigits)
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return match.group(0)
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return re.sub("%d|%f|%H|%j|%m|%M|%S|%w|%W|%Y|%C|%z|%Z|%h|%%", repl, format)
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def strftime(tdt, format, yeardigits=4):
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"""Directive Meaning Notes
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%d Day of the month as a decimal number [01,31].
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%f Microsecond as a decimal number [0,999999], zero-padded
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on the left (1)
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%H Hour (24-hour clock) as a decimal number [00,23].
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%j Day of the year as a decimal number [001,366].
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%m Month as a decimal number [01,12].
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%M Minute as a decimal number [00,59].
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%S Second as a decimal number [00,61]. (3)
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%w Weekday as a decimal number [0(Monday),6].
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%W Week number of the year (Monday as the first day of the week)
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as a decimal number [00,53]. All days in a new year preceding the
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first Monday are considered to be in week 0. (4)
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%Y Year with century as a decimal number. [0000,9999]
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%C Century as a decimal number. [00,99]
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%z UTC offset in the form +HHMM or -HHMM (empty string if the
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object is naive). (5)
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%Z Time zone name (empty string if the object is naive).
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%P ISO8601 duration format.
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%p ISO8601 duration format in weeks.
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%% A literal '%' character.
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"""
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if isinstance(tdt, (timedelta, Duration)):
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return _strfduration(tdt, format, yeardigits)
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return _strfdt(tdt, format, yeardigits)
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