B -<`*3@s|dZddlmZmZmZmZddlZddlmZddlm Z ddl Z ddl Z ddgZ dd Z Gd ddeZeZejZdS) z This module offers a parser for ISO-8601 strings It is intended to support all valid date, time and datetime formats per the ISO-8601 specification. ..versionadded:: 2.7.0 )datetime timedeltatimedateN)tz)wrapsisoparse isoparsercstfdd}|S)Nc sztdfddttjrhydWn6tk rf}zd}tt||Wdd}~XYnX|f||S)NreadcsS)Nr )str_inr @/tmp/pip-target-7cdyy134/lib/python/dateutil/parser/isoparser.pyz,_takes_ascii..func..asciiz5ISO-8601 strings should contain only ASCII characters)getattr isinstancesix text_typeencodeUnicodeEncodeError raise_from ValueError)selfr argskwargsemsg)f)r r funcs "z_takes_ascii..func)r)rrr )rr _takes_asciisr c@seZdZdddZeddZeddZedd Zedd d Zd Z dZ e dZ ddZddZddZddZddZdddZdS)r NcCsD|dk r:t|dks(t|dks(|dkr0td|d}||_dS)z :param sep: A single character that separates date and time portions. If ``None``, the parser will accept any single character. For strict ISO-8601 adherence, pass ``'T'``. N 0123456789z7Separator must be a single, non-numeric ASCII characterr)lenordrr_sep)rsepr r r __init__+s   zisoparser.__init__cCs||\}}t||kr^|jdks:|||d|jkrV||||dd7}ntdt|dkr|ddkrd|d<t|tddSt|S)u+ Parse an ISO-8601 datetime string into a :class:`datetime.datetime`. An ISO-8601 datetime string consists of a date portion, followed optionally by a time portion - the date and time portions are separated by a single character separator, which is ``T`` in the official standard. Incomplete date formats (such as ``YYYY-MM``) may *not* be combined with a time portion. Supported date formats are: Common: - ``YYYY`` - ``YYYY-MM`` or ``YYYYMM`` - ``YYYY-MM-DD`` or ``YYYYMMDD`` Uncommon: - ``YYYY-Www`` or ``YYYYWww`` - ISO week (day defaults to 0) - ``YYYY-Www-D`` or ``YYYYWwwD`` - ISO week and day The ISO week and day numbering follows the same logic as :func:`datetime.date.isocalendar`. Supported time formats are: - ``hh`` - ``hh:mm`` or ``hhmm`` - ``hh:mm:ss`` or ``hhmmss`` - ``hh:mm:ss.ssssss`` (Up to 6 sub-second digits) Midnight is a special case for `hh`, as the standard supports both 00:00 and 24:00 as a representation. The decimal separator can be either a dot or a comma. .. caution:: Support for fractional components other than seconds is part of the ISO-8601 standard, but is not currently implemented in this parser. Supported time zone offset formats are: - `Z` (UTC) - `±HH:MM` - `±HHMM` - `±HH` Offsets will be represented as :class:`dateutil.tz.tzoffset` objects, with the exception of UTC, which will be represented as :class:`dateutil.tz.tzutc`. Time zone offsets equivalent to UTC (such as `+00:00`) will also be represented as :class:`dateutil.tz.tzutc`. :param dt_str: A string or stream containing only an ISO-8601 datetime string :return: Returns a :class:`datetime.datetime` representing the string. Unspecified components default to their lowest value. .. warning:: As of version 2.7.0, the strictness of the parser should not be considered a stable part of the contract. Any valid ISO-8601 string that parses correctly with the default settings will continue to parse correctly in future versions, but invalid strings that currently fail (e.g. ``2017-01-01T00:00+00:00:00``) are not guaranteed to continue failing in future versions if they encode a valid date. .. versionadded:: 2.7.0 Nr!z&String contains unknown ISO componentsr)days)_parse_isodater$r&_parse_isotimerrr)rdt_str componentsposr r r r;sK  zisoparser.isoparsecCs4||\}}|t|kr,tdd|t|S)z Parse the date portion of an ISO string. :param datestr: The string portion of an ISO string, without a separator :return: Returns a :class:`datetime.date` object zString contains unknown ISO zcomponents: {})r,r$rformatr)rZdatestrr/r0r r r parse_isodates  zisoparser.parse_isodatecCs&||}|ddkrd|d<t|S)z Parse the time portion of an ISO string. :param timestr: The time portion of an ISO string, without a separator :return: Returns a :class:`datetime.time` object rr*)r-r)rtimestrr/r r r parse_isotimes  zisoparser.parse_isotimeTcCs|j||dS)a Parse a valid ISO time zone string. See :func:`isoparser.isoparse` for details on supported formats. :param tzstr: A string representing an ISO time zone offset :param zero_as_utc: Whether to return :class:`dateutil.tz.tzutc` for zero-offset zones :return: Returns :class:`dateutil.tz.tzoffset` for offsets and :class:`dateutil.tz.tzutc` for ``Z`` and (if ``zero_as_utc`` is specified) offsets equivalent to UTC. ) zero_as_utc) _parse_tzstr)rtzstrr5r r r parse_tzstrszisoparser.parse_tzstr-:s [\.,]([0-9]+)cCs*y ||Stk r$||SXdS)N)_parse_isodate_commonr_parse_isodate_uncommon)rr.r r r r,s zisoparser._parse_isodatecCst|}dddg}|dkr"tdt|dd|d<d}||krJ||fS|||d|jk}|rl|d7}||dkrtdt|||d|d<|d7}||kr|r||fStd|r|||d|jkrtd|d7}||dkrtd t|||d|d<||dfS) Nr!zISO string too shortrzInvalid common monthzInvalid ISO formatzInvalid separator in ISO stringzInvalid common day)r$rint _DATE_SEP)rr.len_strr/r0has_sepr r r r;s6   zisoparser._parse_isodate_commonc Cstt|dkrtdt|dd}|dd|jk}d|}|||ddkr|d7}t|||d}|d7}d}t||kr|||d|jk|krtd||7}t|||d}|d7}||||}nt||d krtd t|||d }|d 7}|dks.|d t|krBtd d ||t|ddt |dd }|j |j |j g} | |fS)Nr=zISO string too shortrr!Wr>z"Inconsistent use of dash separatorr)zInvalid ordinal dayimz {} for year {})r+) r$rr?r@_calculate_weekdatecalendarisleapr1rryearmonthday) rr.rHrBr0ZweeknoZdaynoZ base_dateZ ordinal_dayr/r r r r<s6  z!isoparser._parse_isodate_uncommoncCsd|krdks$ntd|d|kr8dksHntd|t|dd}|t|ddd }|dd |d}|t|d S) a Calculate the day of corresponding to the ISO year-week-day calendar. This function is effectively the inverse of :func:`datetime.date.isocalendar`. :param year: The year in the ISO calendar :param week: The week in the ISO calendar - range is [1, 53] :param day: The day in the ISO calendar - range is [1 (MON), 7 (SUN)] :return: Returns a :class:`datetime.date` r6zInvalid week: {}zInvalid weekday: {}r!r=r>)r+)rr1rr isocalendar)rrHweekrJZjan_4Zweek_1Z week_offsetr r r rE)s zisoparser._calculate_weekdatec Cst|}dddddg}d}d}t|dkr2td|dkoJ|dd|jk}x||krR|dkrR|d7}|||ddkr|||d|d<|}P|dkrt|||d||<|d7}|r||kr|||d|jkr|d7}|dkrP|j||d}|sqP|ddd }t|d d t|||<|t|7}qPW||krftd |dd krtd d|ddDrtd|S)Nrr>zISO time too shortr)rCr!s-+Zz zUnused components in ISO stringr*css|]}|dkVqdS)rNr ).0 componentr r r usz+isoparser._parse_isotime..r=z#Hour may only be 24 at 24:00:00.000) r$r _TIME_SEPr6r?_FRACTION_REGEXmatchgroupany) rr3rAr/r0comprBfracZus_strr r r r-Js@   zisoparser._parse_isotimecCs|dks|dkrtjSt|dkr*td|dddkr@d}n|ddd krVd}ntd t|dd }t|d krd}n&t||d d |jkrd nd d}|r|dkr|dkrtjS|d krtd|dkrtdtd||d|dSdS)NZz>r)rCrQz0Time zone offset must be 1, 3, 5 or 6 charactersrr!r9rP+zTime zone offset requires signr)r=;z#Invalid minutes in time zone offsetz!Invalid hours in time zone offset<)rUTCr$rr?rVtzoffset)rr7r5Zmulthoursminutesr r r r6zs(  &zisoparser._parse_tzstr)N)T)T)__name__ __module__ __qualname__r(r rr2r4r8r@rVrecompilerWr,r;r<rEr-r6r r r r r *s  Y    ),!0)__doc__rrrrrFZdateutilr functoolsrrjr__all__r objectr ZDEFAULT_ISOPARSERrr r r r  s  r