_parser.cpython-310.pyc // MEDIA VIEWER

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   9  This module offers a generic date/time string parser which is able to parse
  10  most known formats to represent a date and/or time.
  11  
  12  This module attempts to be forgiving with regards to unlikely input formats,
  13  returning a datetime object even for dates which are ambiguous. If an element
  14  of a date/time stamp is omitted, the following rules are applied:
  15  
  16  - If AM or PM is left unspecified, a 24-hour clock is assumed, however, an hour
  17    on a 12-hour clock (``0 <= hour <= 12``) *must* be specified if AM or PM is
  18    specified.
  19  - If a time zone is omitted, a timezone-naive datetime is returned.
  20  
  21  If any other elements are missing, they are taken from the
  22  :class:`datetime.datetime` object passed to the parameter ``default``. If this
  23  results in a day number exceeding the valid number of days per month, the
  24  value falls back to the end of the month.
  25  
  26  Additional resources about date/time string formats can be found below:
  27  
  28  - `A summary of the international standard date and time notation
  29    <https://www.cl.cam.ac.uk/~mgk25/iso-time.html>`_
  30  - `W3C Date and Time Formats <https://www.w3.org/TR/NOTE-datetime>`_
  31  - `Time Formats (Planetary Rings Node) <https://pds-rings.seti.org:443/tools/time_formats.html>`_
  32  - `CPAN ParseDate module
  33    <https://metacpan.org/pod/release/MUIR/Time-modules-2013.0912/lib/Time/ParseDate.pm>`_
  34  - `Java SimpleDateFormat Class
  35    <https://docs.oracle.com/javase/6/docs/api/java/text/SimpleDateFormat.html>`_
  36  �)�unicode_literalsN)�
  37  monthrange)�StringIO)�
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  64          This function breaks the time string into lexical units (tokens), which
  65          can be parsed by the parser. Lexical units are demarcated by changes in
  66          the character set, so any continuous string of letters is considered
  67          one unit, any continuous string of numbers is considered one unit.
  68  
  69          The main complication arises from the fact that dots ('.') can be used
  70          both as separators (e.g. "Sep.20.2009") or decimal points (e.g.
  71          "4:30:21.447"). As such, it is necessary to read the full context of
  72          any dot-separated strings before breaking it into tokens; as such, this
  73          function maintains a "token stack", for when the ambiguous context
  74          demands that multiple tokens be parsed at once.
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 110          and YMD. Default is ``False``.
 111  
 112      :param yearfirst:
 113          Whether to interpret the first value in an ambiguous 3-integer date
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 190  
 191          Parse the date/time string into a :class:`datetime.datetime` object.
 192  
 193          :param timestr:
 194              Any date/time string using the supported formats.
 195  
 196          :param default:
 197              The default datetime object, if this is a datetime object and not
 198              ``None``, elements specified in ``timestr`` replace elements in the
 199              default object.
 200  
 201          :param ignoretz:
 202              If set ``True``, time zones in parsed strings are ignored and a
 203              naive :class:`datetime.datetime` object is returned.
 204  
 205          :param tzinfos:
 206              Additional time zone names / aliases which may be present in the
 207              string. This argument maps time zone names (and optionally offsets
 208              from those time zones) to time zones. This parameter can be a
 209              dictionary with timezone aliases mapping time zone names to time
 210              zones or a function taking two parameters (``tzname`` and
 211              ``tzoffset``) and returning a time zone.
 212  
 213              The timezones to which the names are mapped can be an integer
 214              offset from UTC in seconds or a :class:`tzinfo` object.
 215  
 216              .. doctest::
 217                 :options: +NORMALIZE_WHITESPACE
 218  
 219                  >>> from dateutil.parser import parse
 220                  >>> from dateutil.tz import gettz
 221                  >>> tzinfos = {"BRST": -7200, "CST": gettz("America/Chicago")}
 222                  >>> parse("2012-01-19 17:21:00 BRST", tzinfos=tzinfos)
 223                  datetime.datetime(2012, 1, 19, 17, 21, tzinfo=tzoffset(u'BRST', -7200))
 224                  >>> parse("2012-01-19 17:21:00 CST", tzinfos=tzinfos)
 225                  datetime.datetime(2012, 1, 19, 17, 21,
 226                                    tzinfo=tzfile('/usr/share/zoneinfo/America/Chicago'))
 227  
 228              This parameter is ignored if ``ignoretz`` is set.
 229  
 230          :param \*\*kwargs:
 231              Keyword arguments as passed to ``_parse()``.
 232  
 233          :return:
 234              Returns a :class:`datetime.datetime` object or, if the
 235              ``fuzzy_with_tokens`` option is ``True``, returns a tuple, the
 236              first element being a :class:`datetime.datetime` object, the second
 237              a tuple containing the fuzzy tokens.
 238  
 239          :raises ParserError:
 240              Raised for invalid or unknown string format, if the provided
 241              :class:`tzinfo` is not in a valid format, or if an invalid date
 242              would be created.
 243  
 244          :raises TypeError:
 245              Raised for non-string or character stream input.
 246  
 247          :raises OverflowError:
 248              Raised if the parsed date exceeds the largest valid C integer on
 249              your system.
 250          Nr)r�r�r��microsecondzUnknown string format: %sz"String does not contain a date: %sz: %s�fuzzy_with_tokensF)
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 277          Private method which performs the heavy lifting of parsing, called from
 278          ``parse()``, which passes on its ``kwargs`` to this function.
 279  
 280          :param timestr:
 281              The string to parse.
 282  
 283          :param dayfirst:
 284              Whether to interpret the first value in an ambiguous 3-integer date
 285              (e.g. 01/05/09) as the day (``True``) or month (``False``). If
 286              ``yearfirst`` is set to ``True``, this distinguishes between YDM
 287              and YMD. If set to ``None``, this value is retrieved from the
 288              current :class:`parserinfo` object (which itself defaults to
 289              ``False``).
 290  
 291          :param yearfirst:
 292              Whether to interpret the first value in an ambiguous 3-integer date
 293              (e.g. 01/05/09) as the year. If ``True``, the first number is taken
 294              to be the year, otherwise the last number is taken to be the year.
 295              If this is set to ``None``, the value is retrieved from the current
 296              :class:`parserinfo` object (which itself defaults to ``False``).
 297  
 298          :param fuzzy:
 299              Whether to allow fuzzy parsing, allowing for string like "Today is
 300              January 1, 2047 at 8:21:00AM".
 301  
 302          :param fuzzy_with_tokens:
 303              If ``True``, ``fuzzy`` is automatically set to True, and the parser
 304              will return a tuple where the first element is the parsed
 305              :class:`datetime.datetime` datetimestamp and the second element is
 306              a tuple containing the portions of the string which were ignored:
 307  
 308              .. doctest::
 309  
 310                  >>> from dateutil.parser import parse
 311                  >>> parse("Today is January 1, 2047 at 8:21:00AM", fuzzy_with_tokens=True)
 312                  (datetime.datetime(2047, 1, 1, 8, 21), (u'Today is ', u' ', u'at '))
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 349  |_|d7}|d7}|S|d|k�r'||ddv�r'||d}|�|�|d|k�r!|�||d��s!||d���r�|�||d�n|�||d�}|du�r�|�|d�nt��|d|k�r||d|k�r|�||d�}|du�r|�|d�n	|�||d�|d7}|d7}|d7}|S|d|k�s8|�||d��rm|d|k�rb|�||d�du�rbt|�}|�||�||d��|_|d7}n|�|�|d7}|S|�||d�du�r�d|k�r�dk�r�nnt|�}|�||�||d��|_|d7}|S|�|��r�|�|�|S|�s�t��|S)NzUnknown numeric tokenr�)r	r
 350  r"rr	r
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 352  r�T)�
 353  allow_jump)rarbr'r�r�)�_to_decimal�	Exceptionr�r�r�r1r�r�r�r��findr0�_parsemsr�r��
 354  _find_hms_idx�
 355  _parse_hms�_assign_hms�_parse_min_secr�rIr�r�rr�)r�tokens�idxr�r r�rr"rXrr&r!rD�hms_idxr�r#r�rrr rks���
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 363   
 364  "�&
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 367  �zparser._parse_numeric_tokencCs�t|�}|d|kr|�||d�dur|d}|S|r<|d|kr<||ddkr<|�||d�dur<|d}|S|dkrQ|�||d�durQ|d}|Sd|kr]|dkrxnn||ddkrx|�||d�durx|d}|Sd}|S)Nr"r	r&r)r1r�)rr6r5r�r+r!r7rrr r1�s"" ��,��zparser._find_hms_idxcCs~|�|�}|dkrt|�|_|drtd|d�|_dSdS|dkr.|�|�\|_|_dS|dkr=|�|�\|_|_dSdS)Nrr"rr	)r-r�r�r�r4r�r0r�)rr�r"r�rXrrr r3s
 368  
 369  ��zparser._assign_hmscCsB|duo |duo |duo t|�dko tdd�|D��p ||jjvS)Nrcss�|]}|tjvVqdSr<)�string�ascii_uppercaser�rrr r[%s�z*parser._could_be_tzname.<locals>.<genexpr>)r1�allr�r�)rr�r�r�r6rrr r s��
 370  �
 371  �zparser._could_be_tznamecCs^d}|r
 372  |dur
 373  d}|dur|rd}|Std��d|kr"dks-n|r)d}|Std��|S)z�
 374          For fuzzy parsing, 'a' or 'am' (both valid English words)
 375          may erroneously trigger the AM/PM flag. Deal with that
 376          here.
 377          TNFz%No hour specified with AM or PM flag.rr�z)Invalid hour specified for 12-hour clock.)r�)rr�r�rr$rrr r(s��zparser._ampm_validcCs4|dkr|dkr|d7}|S|dkr|dkrd}|S)Nr�r"rr)rr�r�rrr rDs�zparser._adjust_ampmcCs,t|�}d}|d}|rtd|�}||fS)Nr"r)r�)rrXr�r�Z
 378  sec_remainderrrr r4Kszparser._parse_min_seccCsX|durd}|}||fS||kr|�||�}|}||fS|�||�d}|}||fSr�)r�)rr6r5r�r7r�Znew_idxrrr r2Ws	��zparser._parse_hmscCsBd|vr
 379  t|�dfS|�d�\}}t|�t|�dd�dd��fS)z9Parse a I[.F] seconds value into (seconds, microseconds).r'rr'r%N)r�r4�ljust)rrXr��frrr r0ms zparser._parsemsc
 380  Cs^zt|�}|��s
 381  td��W|Sty.}zd|}t�t|�|�WYd}~dSd}~ww)Nz*Converted decimal value is infinite or NaNzCould not convert %s to decimal)r�	is_finiter�r.r�r�)rr�Z
 382  decimal_valuer�msgrrr r-us����zparser._to_decimalcCstt|�r
 383  |||�}n|�|�}t|tj�s|dur|}|St|t�r)t�|�}|St|t�r6t�	||�}|St
 384  d��)Nz9Offset must be tzinfo subclass, tz string, or int offset.)�callabler�rr��tzinforr�tzstrrr�r)rrr�r�Ztzdatar@rrr �
 385  _build_tzinfo�s
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 387  �
 388  
 389  ��zparser._build_tzinfocCst|�s|r#|j|vr#|�||j|j�}|j|d�}|�||j�}|S|jrR|jtjvrR|jt��d�}|�||j�}|��|jkrP|j|j	j
 390  vrP|jtjd�}|S|jdkr`|jtjd�}|S|jrq|jt�|j|j�d�}|S|js{|js{|}|S|jr�tj
 391  dj|jd�td�|}|S)N)r@rz�tzname {tzname} identified but not understood.  Pass `tzinfos` argument in order to correctly return a timezone-aware datetime.  In a future version, this will raise an exception.)r�)�category)r?r�rBr�r5�_assign_tznamer�rZtzlocalr�r�r��warningsrr�UnknownTimezoneWarning)r�naiver�rr@Zawarerrr r�s:"�
 392  ���
 393  ���zparser._build_tzawarec
 394  Cs�i}dD]}t||�}|dur|||<qd|vrK|jdur |jn|j}|jdur+|jn|j}|jdur6|jn|j}|t||�dkrKt||�d|d<|jdi|��}	|jdurd|jsd|	tj|jd�}	|	S)N)r�r�r�r�r�r�r�r�r")r�r)rr�r�r�rr5r�r
 395  )
 396  rr�r�replrRrXZcyearZcmonthZcdayrGrrr r��s 
 397  �zparser._build_naivecCs.|��|krtj|dd�}|��|kr|S|S)Nr")�fold)r�rZenfold)r�dtr�Znew_dtrrr rD�s
 398  zparser._assign_tznamecCs^g}tt|��D]$\}}|dkr%|d||dkr%|d|||d<q|�||�q|S)z�
 399          >>> tokens = ["foo", " ", "bar", " ", "19June2000", "baz"]
 400          >>> skipped_idxs = [0, 1, 2, 5]
 401          >>> _recombine_skipped(tokens, skipped_idxs)
 402          ["foo bar", "baz"]
 403          rr"r+)r��sortedr0)rr5rrr�r6rrr r�szparser._recombine_skippedr<)NFN)NNFF)rrJrKr!rrOrr�rr1r3rrrr4r2r0r-rBrr�rDrrrrr r�8s4
 404  
 405  �Y
 406  �R"(r�cKs,|r
 407  t|�j|fi|��Stj|fi|��S)a�
 408  
 409      Parse a string in one of the supported formats, using the
 410      ``parserinfo`` parameters.
 411  
 412      :param timestr:
 413          A string containing a date/time stamp.
 414  
 415      :param parserinfo:
 416          A :class:`parserinfo` object containing parameters for the parser.
 417          If ``None``, the default arguments to the :class:`parserinfo`
 418          constructor are used.
 419  
 420      The ``**kwargs`` parameter takes the following keyword arguments:
 421  
 422      :param default:
 423          The default datetime object, if this is a datetime object and not
 424          ``None``, elements specified in ``timestr`` replace elements in the
 425          default object.
 426  
 427      :param ignoretz:
 428          If set ``True``, time zones in parsed strings are ignored and a naive
 429          :class:`datetime` object is returned.
 430  
 431      :param tzinfos:
 432          Additional time zone names / aliases which may be present in the
 433          string. This argument maps time zone names (and optionally offsets
 434          from those time zones) to time zones. This parameter can be a
 435          dictionary with timezone aliases mapping time zone names to time
 436          zones or a function taking two parameters (``tzname`` and
 437          ``tzoffset``) and returning a time zone.
 438  
 439          The timezones to which the names are mapped can be an integer
 440          offset from UTC in seconds or a :class:`tzinfo` object.
 441  
 442          .. doctest::
 443             :options: +NORMALIZE_WHITESPACE
 444  
 445              >>> from dateutil.parser import parse
 446              >>> from dateutil.tz import gettz
 447              >>> tzinfos = {"BRST": -7200, "CST": gettz("America/Chicago")}
 448              >>> parse("2012-01-19 17:21:00 BRST", tzinfos=tzinfos)
 449              datetime.datetime(2012, 1, 19, 17, 21, tzinfo=tzoffset(u'BRST', -7200))
 450              >>> parse("2012-01-19 17:21:00 CST", tzinfos=tzinfos)
 451              datetime.datetime(2012, 1, 19, 17, 21,
 452                                tzinfo=tzfile('/usr/share/zoneinfo/America/Chicago'))
 453  
 454          This parameter is ignored if ``ignoretz`` is set.
 455  
 456      :param dayfirst:
 457          Whether to interpret the first value in an ambiguous 3-integer date
 458          (e.g. 01/05/09) as the day (``True``) or month (``False``). If
 459          ``yearfirst`` is set to ``True``, this distinguishes between YDM and
 460          YMD. If set to ``None``, this value is retrieved from the current
 461          :class:`parserinfo` object (which itself defaults to ``False``).
 462  
 463      :param yearfirst:
 464          Whether to interpret the first value in an ambiguous 3-integer date
 465          (e.g. 01/05/09) as the year. If ``True``, the first number is taken to
 466          be the year, otherwise the last number is taken to be the year. If
 467          this is set to ``None``, the value is retrieved from the current
 468          :class:`parserinfo` object (which itself defaults to ``False``).
 469  
 470      :param fuzzy:
 471          Whether to allow fuzzy parsing, allowing for string like "Today is
 472          January 1, 2047 at 8:21:00AM".
 473  
 474      :param fuzzy_with_tokens:
 475          If ``True``, ``fuzzy`` is automatically set to True, and the parser
 476          will return a tuple where the first element is the parsed
 477          :class:`datetime.datetime` datetimestamp and the second element is
 478          a tuple containing the portions of the string which were ignored:
 479  
 480          .. doctest::
 481  
 482              >>> from dateutil.parser import parse
 483              >>> parse("Today is January 1, 2047 at 8:21:00AM", fuzzy_with_tokens=True)
 484              (datetime.datetime(2047, 1, 1, 8, 21), (u'Today is ', u' ', u'at '))
 485  
 486      :return:
 487          Returns a :class:`datetime.datetime` object or, if the
 488          ``fuzzy_with_tokens`` option is ``True``, returns a tuple, the
 489          first element being a :class:`datetime.datetime` object, the second
 490          a tuple containing the fuzzy tokens.
 491  
 492      :raises ParserError:
 493          Raised for invalid or unknown string formats, if the provided
 494          :class:`tzinfo` is not in a valid format, or if an invalid date would
 495          be created.
 496  
 497      :raises OverflowError:
 498          Raised if the parsed date exceeds the largest valid C integer on
 499          your system.
 500      )r�r�
 501  DEFAULTPARSER)rr
 502  r�rrr r�s_rc@s$eZdZGdd�de�Zdd�ZdS)�	_tzparserc@s4eZdZgd�ZGdd�de�Zdd�Zdd�ZdS)	z_tzparser._result)�stdabbr�	stdoffset�dstabbr�	dstoffset�start�endc@r)z_tzparser._result._attr)r��weekr��yday�jydayr�r�Nr
 503  rrrr �_attrbrrWcCs
 504  |�d�S)N�)rYr=rrr r^f�
 505  z_tzparser._result.__repr__cCs"t�|�|��|_|��|_dSr<)rOr!rWrRrSr=rrr r!is
 506  
 507  z_tzparser._result.__init__N)rrJrKrPrOrWr^r!rrrr r]s
 508  rc
 509  s�|��}dd�t�d|�D��t�}�z�t��}d}||k�r$|}||kr?dd��|D�s?|d7}||kr?dd��|D�r.||k�r|jsTd}d��||��|_nd	}d��||��|_t|�D]}|�	|�qd|}||k�r�|d
 510  vs��|ddv�r�|d
 511  vr�d�|d
 512  k}	|�	|�|d7}nd}	t�|�}
 513  |
 514  dkr�t
 515  ||t�|dd��dt�|dd��d|	�nK|d|kr��|ddkr�t
 516  ||t�|�dt�|d�d|	�|�	|�|d7}n|
 517  dk�r
 518  t
 519  ||t�|dd��d|	�nWdS|�	|�|d7}|j�rnnn||ks||k�rJt||�D]}�|dk�r;d�|<�q.�|dk�sFJ�|d7}||k�rQ�nZd��d�k�r`dk�r)nn�dd��|d�D��s)|j
 520  |jfD]o}t�|�|_|�	|�|d7}�|dk�r�t�|d�d}|�	|�|d7}nt�|�}|�	|�|d7}|�r�||_t�|�dd|_nt�|�|_|�	|�|d7}t�|�|_|�	|�|d7}�qt||k�r�|dv�rd�|d
 521  k}	|�	|�|d7}nd}	|�	|�|jt�|�|	|_td|ddd d!d"tj��n���d�dk�r��|d��d#�dk�r�d$d��|d�D��s�|j
 522  |jfD�]S}�|d%k�rj|�	|�|d7}t�|�|_nr�|d&k�r�|�	|�|d7}t�|�|_|�	|�|d7}�|d'v�s�J�|�	|�|d7}t�|�|_|jd(k�r�d|_|�	|�|d7}�|d'v�s�J�|�	|�|d7}t�|�dd|_n	t�|�d|_|�	|�|d7}||k�r��|d#k�r�|�	|�|d7}t�|�}
 523  |
 524  dk�rt�|dd��dt�|dd��d|_nh|d|k�rp�|ddk�rpt�|�dt�|d�d|_|�	|�|d7}|d|k�ro�|ddk�ro|�	|�|d7}|jt�|�7_n|
 525  dk�r�t�|dd��d|_nWdS|�	|�|d7}||k�s��|dk�s�J�|d7}�qO||k�s�J�Wntttf�y�YdSwtt|���|�}
 526  �fd)d*�|
 527  D�� ddh�|_!|S)+NcSsg|]}|r|�qSrrr�rrr r�p�z#_tzparser.parse.<locals>.<listcomp>z([,:.]|[a-zA-Z]+|[0-9]+)rcSsg|]}|dvr|�qS)z0123456789:,-+rr�rrr r�zs�r"rOrXrQr�
 528  0123456789)r"r+rr+r
 529  r	rrrr`r)r(�	cSs*g|]}|dkr|D]}|dvr
 530  |�q
 531  qS)r)z0123456789+-r�rZr�r�rrr r��s�
 532  �ra�)rarrzParsed time zone "%s"z5is in a non-standard dateutil-specific format, which z3is now deprecated; support for parsing this format z6will be removed in future versions. It is recommended z2that you switch to a standard format like the GNU zTZ variable format.rbcSs*g|]}|dvr|D]}|dvr
 533  |�q
 534  qS))r)rb�Jr�r'rarr[rr]rrr r��s�
 535  �r_r�)rar'rcsh|]}�|�qSrr)rZ�n�r9rr �	<setcomp>*rZz"_tzparser.parse.<locals>.<setcomp>)"rrLr4rBr1rNrVrPr�r0rQr�r2rRrSr�rTr�r�r�rOrQrrZDeprecatedTzFormatWarningrVrUrr��AssertionError�set�
 536  difference�issubsetr	)rrAr�Z	used_idxsr!r��jZoffattr�iir%r&r�rXZunused_idxsrrar rnsV
 537  �
 538   �
 539  
 540  �����
 541  
 542  
 543  �
 544  ��
 545  5�
 546  "�
 547  
 548  
 549  
 550  
 551  
 552  
 553  
 554  
 555  
 556  ������(�
 557  
 558  
 559  
 560  
 561  
 562  
 563  
 564  
 565  � &
 566   
 567  �
 568  
 569  �� z_tzparser.parseN)rrJrKrOrrrrrr rM[srMcCs
 570  t�|�Sr<)�DEFAULTTZPARSERr)rArrr �_parsetz1rYrjcs(eZdZdZ�fdd�Zdd�Z�ZS)rz�Exception subclass used for any failure to parse a datetime string.
 571  
 572      This is a subclass of :py:exc:`ValueError`, and should be raised any time
 573      earlier versions of ``dateutil`` would have raised ``ValueError``.
 574  
 575      .. versionadded:: 2.8.1
 576      c	s@z
 577  |jd|jdd�WSttfytt|���YSw)Nrr")r�rrr�r�__str__r=r�rr rk=s
 578  �zParserError.__str__cCs&d�dd�|jD��}d|jj|fS)NrTcss�|]}d|VqdS)z'%s'Nr)rZ�argrrr r[Ds�z'ParserError.__repr__.<locals>.<genexpr>rS)rVr�rr)rr�rrr r^CszParserError.__repr__)rrJrKr�rkr^r�rrr�r r5src@seZdZdZdS)rFzhRaised when the parser finds a timezone it cannot parse into a tzinfo.
 579  
 580      .. versionadded:: 2.7.0
 581      N)rrJrKr�rrrr rFHsrFr<)&r��
 582  __future__rr�rLr8r�rE�calendarr�iorr�rr�decimalrrrXr
 583  r�__all__�objectrrOr
 584  rBr�r�rLrrMrirjr�r�RuntimeWarningrFrrrr �<module>sJ"/@
 585  eT