o Ö]*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)tzwrapsisoparse isoparsercstfdd}|S)Nc stdfddttjr5zdWnty4}zd}tt||WYd}~nd}~ww|g|Ri|S)NreadcsSNr str_inr ;/usr/lib/python3/dist-packages/dateutil/parser/isoparser.pysz,_takes_ascii..func..asciiz5ISO-8601 strings should contain only ASCII characters)getattr isinstancesix text_typeencodeUnicodeEncodeError raise_from ValueError)selfrargskwargsemsgfrrfuncs z_takes_ascii..funcr)r!r"r r r _takes_asciisr#c@seZdZdddZeddZeddZedd Zedd d Zd Z dZ e dZ ddZddZddZddZddZdddZdS)r NcCsD|durt|dkst|dks|dvrtd|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/|jdus|||d|jkr+||||dd7}ntdt|dkrH|ddkrHd|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$z&String contains unknown ISO componentsrdays)_parse_isodater'r)_parse_isotimerrr)rdt_str componentsposr r rr ;sK  zisoparser.isoparsecCs4||\}}|t|krtdd|t|S)z Parse the date portion of an ISO string. :param datestr: The string portion of an ISO string, without a separator :return: Returns a :class:`datetime.date` object zString contains unknown ISO zcomponents: {})r0r'rformatr)rdatestrr3r4r r r parse_isodates  zisoparser.parse_isodatecCs&||}|ddkrd|d<t|S)z Parse the time portion of an ISO string. :param timestr: The time portion of an ISO string, without a separator :return: Returns a :class:`datetime.time` object rr-)r1r)rtimestrr3r r r parse_isotimes zisoparser.parse_isotimeTcCs|j||dS)a Parse a valid ISO time zone string. See :func:`isoparser.isoparse` for details on supported formats. :param tzstr: A string representing an ISO time zone offset :param zero_as_utc: Whether to return :class:`dateutil.tz.tzutc` for zero-offset zones :return: Returns :class:`dateutil.tz.tzoffset` for offsets and :class:`dateutil.tz.tzutc` for ``Z`` and (if ``zero_as_utc`` is specified) offsets equivalent to UTC. ) zero_as_utc) _parse_tzstr)rtzstrr:r r r parse_tzstrszisoparser.parse_tzstr-:s [\.,]([0-9]+)cCs*z||WSty||YSwr )_parse_isodate_commonr_parse_isodate_uncommon)rr2r r rr0s   zisoparser._parse_isodatecCst|}gd}|dkrtdt|dd|d<d}||kr$||fS|||d|jk}|r5|d7}||dkr?tdt|||d|d<|d7}||kr]|rY||fStd|rr|||d|jkrntd |d7}||dkr|td t|||d|d<||dfS) N)r$r$r$ISO string too shortrr$zInvalid common monthzInvalid ISO formatzInvalid separator in ISO stringzInvalid common day)r'rint _DATE_SEP)rr2len_strr3r4has_sepr r rr@s6   zisoparser._parse_isodate_commonc Cspt|dkr tdt|dd}|dd|jk}d|}|||ddkrn|d7}t|||d}|d7}d}t||krf|||d|jk|krTtd||7}t|||d}|d7}||||}n>t||d krztd t|||d }|d 7}|dks|d t|krtd d ||t|ddt |dd }|j |j |j g} | |fS)NrBrCrr$WrDz"Inconsistent use of dash separatorr,zInvalid ordinal dayimz {} for year {}r.) r'rrErF_calculate_weekdatecalendarisleapr5rryearmonthday) rr2rNrHr4weeknodayno base_date ordinal_dayr3r r rrAs8   z!isoparser._parse_isodate_uncommoncCsd|kr dksntd|d|krdks$ntd|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$rBrDr.)rr5rr isocalendar)rrNweekrPjan_4week_1 week_offsetr r rrK)s zisoparser._calculate_weekdatec Cst|}gd}d}d}t|dkrtd|dko"|dd|jk}||kr|dkr|d7}|||dd vrG|||d|d<|}na|dkrpt|||d||<|d7}|rp||krp|||d|jkrp|d7}|dkr|j||d}|sq#|ddd }t|d d t|||<|t|7}||kr|dks+||krtd |dd krtdd|ddDrtd|S)N)rrrrNrrDzISO time too shortr,rIr$s-+Zz zUnused components in ISO stringr-css|]}|dkVqdS)rNr ).0 componentr r r usz+isoparser._parse_isotime..rBz#Hour may only be 24 at 24:00:00.000) r'r _TIME_SEPr;rE_FRACTION_REGEXmatchgroupany) rr8rGr3r4comprHfracus_strr r rr1JsB   zisoparser._parse_isotimecCs|dks|dkr tjSt|dvrtd|dddkr d}n|ddd kr+d}ntd t|dd }t|d kr@d}nt||d d |jkrMd nd d}|r`|dkr`|dkr`tjS|d krhtd|dkrptdtd||d|dS)NZz>r,rIr^z0Time zone offset must be 1, 3, 5 or 6 charactersrr$r>r]+zTime zone offset requires signr,rB;z#Invalid minutes in time zone offsetz!Invalid hours in time zone offset<)rUTCr'rrErctzoffset)rr<r:multhoursminutesr r rr;zs(  &zisoparser._parse_tzstrr )T)__name__ __module__ __qualname__r+r#r r7r9r=rFrcrecompilerdr0r@rArKr1r;r r r rr *s&  X    ),!0)__doc__rrrrrLdateutilr functoolsrryr__all__r#objectr DEFAULT_ISOPARSERr r r r rs  r