Viewing file:  TimeLib.py (2.5 KB) -rw-r--r--
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import re
from datetime import time
#Regexen from Mark Nottingham (http://www.mnot.net/python/isodate.py)
DATETIME_PAT = re.compile(r"""
(?P<year>\d{4,4})
(?:
-
(?P<month>\d{1,2})
(?:
-
(?P<day>\d{1,2})
(?:
T
(?P<hour>\d{1,2})
:
(?P<minute>\d{1,2})
(?:
:
(?P<second>\d{1,2})
(?:
\.
(?P<fract_second>\d+)?
)?
)?
(?:
Z
|
(?:
(?P<tz_sign>[+-])
(?P<tz_hour>\d{1,2})
:
(?P<tz_min>\d{2,2})
)
)
)?
)?
)?
$""", re.VERBOSE)
TIME_PAT = re.compile(r"""
(?P<hour>\d{1,2})
:
(?P<minute>\d{1,2})
(?:
:
(?P<second>\d{1,2})
(?:
\.
(?P<fract_second>\d+)?
)?
)?
(?:
Z
|
(?:
(?P<tz_sign>[+-])
(?P<tz_hour>\d{1,2})
:
(?P<tz_min>\d{2,2})
)
)
$""", re.VERBOSE)
def parse_isodate(st):
"""
st - string or Unicode with ISO 8601 date
"""
m = DATETIME_PAT.match(st)
if not m:
return None
gd = m.groupdict('0')
#FIXME: does not handle time zones
dt = datetime(int(gd['year']),
int(gd['month']) or 1,
int(gd['day']) or 1,
int(gd['hour']),
int(gd['minute']),
int(gd['second']),
int(float(u'.' + gd['fract_second'])*1000000),
)
return dt
def parse_isotime(st):
"""
st - string or Unicode with ISO 8601 time
"""
m = TIME_PAT.match(st)
if not m:
return None
gd = m.groupdict('0')
#FIXME: does not handle time zones
t = time(int(gd['hour']),
int(gd['minute']),
int(gd['second']),
int(float(u'.' + gd['fract_second'])*1000000),
)
return t
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