diff options
Diffstat (limited to 'creactistore/_templates/lib/isodate/isotzinfo.py')
| -rw-r--r-- | creactistore/_templates/lib/isodate/isotzinfo.py | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/creactistore/_templates/lib/isodate/isotzinfo.py b/creactistore/_templates/lib/isodate/isotzinfo.py deleted file mode 100644 index df01384..0000000 --- a/creactistore/_templates/lib/isodate/isotzinfo.py +++ /dev/null @@ -1,109 +0,0 @@ -############################################################################## -# Copyright 2009, Gerhard Weis -# All rights reserved. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions are met: -# -# * Redistributions of source code must retain the above copyright notice, -# this list of conditions and the following disclaimer. -# * Redistributions in binary form must reproduce the above copyright notice, -# this list of conditions and the following disclaimer in the documentation -# and/or other materials provided with the distribution. -# * Neither the name of the authors nor the names of its contributors -# may be used to endorse or promote products derived from this software -# without specific prior written permission. -# -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE -# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR -# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -# CONTRACT, STRICT LIABILITY, OR TORT -############################################################################## -''' -This module provides an ISO 8601:2004 time zone info parser. - -It offers a function to parse the time zone offset as specified by ISO 8601. -''' -import re - -from isodate.isoerror import ISO8601Error -from isodate.tzinfo import UTC, FixedOffset, ZERO - -TZ_REGEX = r"(?P<tzname>(Z|(?P<tzsign>[+-])"\ - r"(?P<tzhour>[0-9]{2})(:(?P<tzmin>[0-9]{2}))?)?)" - -TZ_RE = re.compile(TZ_REGEX) - -def build_tzinfo(tzname, tzsign='+', tzhour=0, tzmin=0): - ''' - create a tzinfo instance according to given parameters. - - tzname: - 'Z' ... return UTC - '' | None ... return None - other ... return FixedOffset - ''' - if tzname is None or tzname == '': - return None - if tzname == 'Z': - return UTC - tzsign = ((tzsign == '-') and -1) or 1 - return FixedOffset(tzsign * tzhour, tzsign * tzmin, tzname) - -def parse_tzinfo(tzstring): - ''' - Parses ISO 8601 time zone designators to tzinfo objecs. - - A time zone designator can be in the following format: - no designator indicates local time zone - Z UTC - +-hhmm basic hours and minutes - +-hh:mm extended hours and minutes - +-hh hours - ''' - match = TZ_RE.match(tzstring) - if match: - groups = match.groupdict() - return build_tzinfo(groups['tzname'], groups['tzsign'], - int(groups['tzhour'] or 0), - int(groups['tzmin'] or 0)) - raise ISO8601Error('%s not a valid time zone info' % tzstring) - -def tz_isoformat(dt, format='%Z'): - ''' - return time zone offset ISO 8601 formatted. - The various ISO formats can be chosen with the format parameter. - - if tzinfo is None returns '' - if tzinfo is UTC returns 'Z' - else the offset is rendered to the given format. - format: - %h ... +-HH - %z ... +-HHMM - %Z ... +-HH:MM - ''' - tzinfo = dt.tzinfo - if (tzinfo is None) or (tzinfo.utcoffset(dt) is None): - return '' - if tzinfo.utcoffset(dt) == ZERO and tzinfo.dst(dt) == ZERO: - return 'Z' - tdelta = tzinfo.utcoffset(dt) - seconds = tdelta.days * 24 * 60 * 60 + tdelta.seconds - sign = ((seconds < 0) and '-') or '+' - seconds = abs(seconds) - minutes, seconds = divmod(seconds, 60) - hours, minutes = divmod(minutes, 60) - if hours > 99: - raise OverflowError('can not handle differences > 99 hours') - if format == '%Z': - return '%s%02d:%02d' % (sign, hours, minutes) - elif format == '%z': - return '%s%02d%02d' % (sign, hours, minutes) - elif format == '%h': - return '%s%02d' % (sign, hours) - raise AttributeError('unknown format string "%s"' % format) |