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Parse human-readable date/time text.
Requires Python 2.6 or later
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A collection of routines to input, parse and manipulate date and times.
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Default constructor for the L{Calendar} class.
@type constants: object
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@type version: integer
@param version: Default style version of current Calendar
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@rtype: object
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Converts text units into their number value.
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Take C{quantity}, C{modifier} and C{unit} strings and convert them
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@type quantity: string
@param quantity: quantity string
@type modifier: string
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Parse short-form date strings::
'05/28/2006' or '04.21'
@type dateString: string
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@param sourceTime: C{struct_time} value to use as the base
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Parse long-form date strings::
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Evaluate the C{datetimeString} text and determine if
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Based on the C{style} and C{currentDayStyle} determine what
day-of-week value is to be returned.
@type wd: integer
@param wd: day-of-week value for the current day
@type wkdy: integer
@param wkdy: day-of-week value for the parsed day
@type offset: integer
@param offset: offset direction for any modifiers (-1, 0,
1)
@type style: integer
@param style: normally the value
set in C{Constants.DOWParseStyle}
@type currentDayStyle: integer
@param currentDayStyle: normally the value
set in C{Constants.CurrentDOWParseStyle}
@rtype: integer
@return: calculated day-of-week
iii����iii����u7wd %s, wkdy %s, offset %d, style
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Convert a quantity, either spelled-out or numeric, to a float
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Evaluate the C{modifier} string and following text (passed in
as C{chunk1} and C{chunk2}) and if they match any known modifiers
calculate the delta and apply it to C{sourceTime}.
@type modifier: string
@param modifier: modifier text to apply to sourceTime
@type chunk1: string
@param chunk1: text chunk that preceded modifier (if any)
@type chunk2: string
@param chunk2: text chunk that followed modifier (if any)
@type sourceTime: struct_time
@param sourceTime: C{struct_time} value to use as the base
@rtype: tuple
@return: tuple of: remaining text and the modified sourceTime
i iiuu/modifier [%s] chunk1 [%s] chunk2 [%s] unit
[%s]umonthsiRuweeksitdaysiitweeksudaysuhoursR!uyearsiiueomueoyuCRE_WEEKDAY
matchedueoduthisunextulastupriorupreviousR#uCRE_TIME matchedu0check
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%sRi����uCRE_NUMBER matchedu%s%s%sulooking for modifier
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CRE_REMAININGR�RyRaRbRhR�RgRjRmR%R�RktACU_WEEKtACU_HALFDAYR�R&R�tCRE_WEEKDAYR.RR�R�t getSourcetWeekdayOffsetsR�t
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Calculate the datetime from known format like RFC822 or W3CDTF
Examples handled::
RFC822, W3CDTF formatted dates
HH:MM[:SS][ am/pm]
MM/DD/YYYY
DD MMMM YYYY
@type datetimeString: string
@param datetimeString: text to try and parse as more
"traditional"
date/time text
@type sourceTime: struct_time
@param sourceTime: C{struct_time} value to use as the base
@rtype: datetime
@return: calculated C{struct_time} value or current C{struct_time}
if not parsed
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Evaluate text passed by L{_partialParseUnits()}
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Evaluate text passed by L{_partialParseDateStr()}
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Evaluate text passed by L{_partialParseDateStd()}
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Evaluate text passed by L{_partialParseDaystr()}
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Evaluate text passed by L{_partialParseWeekday()}
iR�(RdR�RgRFR�R�R�R�RQR%RR�RkRm(R
R�R�RBRrRsRtRuRvRwR�R�R�RyR�RqRz((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt_evalWeekday�s! cC�s�|j�}|j||�}||jjdkrJ|jjtj�n7|jj||�}|rn|}n|jjtj �|S(uC
Evaluate text passed by L{_partialParseTimeStr()}
unow(
RdR�RFt re_valuesRQR%RtACU_NOWR�R�(R
R�R�RBR�((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt_evalTimeStr�s c
C�s�|j�}|j||�}|\ }}}}}} }
}}|jjj|�}
|
dk r:||
jd�
j�}t|�dkr�t|�}d}d} nt |
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j
d�j�}||jjkr|dkrd}n||jj
kr:|dkr:|d7}q:n|dkr�|dkr�| dkr�|||||| |
||f }t|
|j�n|S(uD
Evaluate text passed by L{_partialParseMeridian()}
umeridianiiiii<N(RdR�RFtCRE_TIMEHMS2R�RRyR;RR$RR9R�tpmR*RQ(R
R�R�RBRrRsRtRuRvRwR�R�R�RtdtR�((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt
_evalMeridian�s,! $!cC�s�|j�}|j||�}|\ }}}}}} }
}}|jjj|�}
|
dk rxt|
�\}}} n|dkr�d}n|dkr�|dkr�| dkr�|||||| |
||f }t|
|j�n|S(uC
Evaluate text passed by L{_partialParseTimeStd()}
iii<N( RdR�RFtCRE_TIMEHMSR�RR$R*RQ(R
R�R�RBRrRsRtRuRvRwR�R�R�R((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt_evalTimeStd�s! $!cC�s�|jjj|�}|dk r�d|jd�|j|�f}|j|�|jd�kr�|jd�|jd�kr�|jd�|kr�tStSntSdS(Nu%s%sudayusuffixuqty(RFtCRE_DAY2R�RRRytTruetFalse(R
RBRR|tm2R((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt
_UnitsTrapped�s "cC�s�d}d}}|jjj|�}|dk r�|j�|kr~|j�}||j�
j�}||j�j�}q�|}n|r�to�t jd|||�|j
||||�\}}n||t|�fS(u�
test if giving C{s} matched CRE_MODIFIER, used by L{parse()}
@type s: string
@param s: date/time text to evaluate
@type sourceTime: struct_time
@param sourceTime: C{struct_time} value to use as the base
@rtype: tuple
@return: tuple of remained date/time text, datetime object and
an boolean value to describ if matched or not
uufound (modifier)
[%s][%s][%s]N(RRFtCRE_MODIFIERR�RRyRdR�RaRbR�tbool(R
RBR�R�R�R�R((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt_partialParseModifiers
cC�sXd}d}}|jjj|�}|dk rtoCtjd�|j||d�rotoktjd�q|jd�|kr�|jd�}||jd�
j �}||j
d�j �}|ddkr�d|}|d
}nd ||f}q|}d}n|rEto/tjd
|||�|j||�}n||t|�fS(u�
test if giving C{s} matched CRE_UNITS, used by L{parse()}
@type s: string
@param s: date/time text to evaluate
@type sourceTime: struct_time
@param sourceTime: C{struct_time} value to use as the base
@rtype: tuple
@return: tuple of remained date/time text, datetime object and
an boolean value to describ if matched or not
uuCRE_UNITS matcheduunitsu day suffix trapped by unit
matchuqtyi����u-u-%su%s %sufound (units)
[%s][%s][%s]N(
RRFR�R�RaRbRRRyRdR�R�R(R
RBR�R�R�R�R((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt_partialParseUnits(s,
cC�sXd}d}}|jjj|�}|dk rtoCtjd�|j||d�rotoktjd�q|jd�|kr�|jd�}||jd�
j �}||j
d�j �}|ddkr�d|}|d
}nd ||f}q|}d}n|rEto/tjd
|||�|j||�}n||t|�fS(u�
test if giving C{s} matched CRE_QUNITS, used by L{parse()}
@type s: string
@param s: date/time text to evaluate
@type sourceTime: struct_time
@param sourceTime: C{struct_time} value to use as the base
@rtype: tuple
@return: tuple of remained date/time text, datetime object and
an boolean value to describ if matched or not
uuCRE_QUNITS matcheduqunitsu!day suffix trapped by qunit
matchuqtyi����u-u-%su%s %sufound (qunits)
[%s][%s][%s]N(
RRFR�R�RaRbRRRyRdR�R�R(R
RBR�R�R�R�R((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt_partialParseQUnitsVs.
c
C�s�d}d}}|jjj|�}|dk r^|jd�|krO|jd�}|jd�}t} |jjj|�}
|jd�}|
dk r�|dk r�t } n6|jj
j|�}
|
dk r�|dkr�t } n| r|
jd�}||jd�kr|}qn|||!}||
}||}d||f}q^|}d}n|r�totjd|||�|j
||�}n||t|�fS(u�
test if giving C{s} matched CRE_DATE3, used by L{parse()}
@type s: string
@param s: date/time text to evaluate
@type sourceTime: struct_time
@param sourceTime: C{struct_time} value to use as the base
@rtype: tuple
@return: tuple of remained date/time text, datetime object and
an boolean value to describ if matched or not
uudateuyearuhoursu%s %sufound (date3)
[%s][%s][%s]N(RRFR�R�RRyR�RR�R�R�RaRbR�R(
R
RBR�R�R�R�RtmStarttmEndtfTimetmmtmYeart
hoursStart((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt_partialParseDateStr�s<
cC�s�d}d}}|jjj|�}|dk r�|jd�|kr�|jd�}||jd�
}||jd�}d||f}q�|}d}n|r�to�tjd|||�|j ||�}n||t
|�fS(u�
test if giving C{s} matched CRE_DATE, used by L{parse()}
@type s: string
@param s: date/time text to evaluate
@type sourceTime: struct_time
@param sourceTime: C{struct_time} value to use as the base
@rtype: tuple
@return: tuple of remained date/time text, datetime object and
an boolean value to describ if matched or not
uudateu%s %sufound (date)
[%s][%s][%s]N(RRFtCRE_DATER�RRyR�RaRbR�R(R
RBR�R�R�R�R((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt_partialParseDateStd�s
cC�s�d}d}}|jjj|�}|dk r�|j�|kr�|j�}||j�
}||j�}d||f}q�|}d}n|r�to�tjd|||�|j ||�}n||t
|�fS(u�
test if giving C{s} matched CRE_DAY, used by L{parse()}
@type s: string
@param s: date/time text to evaluate
@type sourceTime: struct_time
@param sourceTime: C{struct_time} value to use as the base
@rtype: tuple
@return: tuple of remained date/time text, datetime object and
an boolean value to describ if matched or not
uu%s %sufound (day)
[%s][%s][%s]N(RRFtCRE_DAYR�RRyR�RaRbR�R(R
RBR�R�R�R�R((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt_partialParseDayStr�s
c C�sd}d}}|j}tjd||j|j�|jjj|�}|dk r�|j �}||jj
kr�||kr�|}||j�
}||j�}d||f}q�|}d}q�n|r|jrto�tjd|||�|j
||�}n||t|�fS(u�
test if giving C{s} matched CRE_WEEKDAY, used by L{parse()}
@type s: string
@param s: date/time text to evaluate
@type sourceTime: struct_time
@param sourceTime: C{struct_time} value to use as the base
@rtype: tuple
@return: tuple of remained date/time text, datetime object and
an boolean value to describ if matched or not
uueval %s with context - %s, %su%s %sufound (weekday)
[%s][%s][%s]N(RRQRbRaR�thasTimeRFR�R�RR�RyR�R�R( R
RBR�R�R�R�R)Rtgv((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt_partialParseWeekdays(
cC�s�d}d}}|jjj|�}|dk sG||jjdkr�|r�|j�|kr�|j�}||j�
}||j�}d||f}q�|}d}n|r�to�t jd|||�|j
||�}n||t|�fS(u�
test if giving C{s} matched CRE_TIME, used by L{parse()}
@type s: string
@param s: date/time text to evaluate
@type sourceTime: struct_time
@param sourceTime: C{struct_time} value to use as the base
@rtype: tuple
@return: tuple of remained date/time text, datetime object and
an boolean value to describ if matched or not
uunowu%s %sufound (time)
[%s][%s][%s]N(RRFR�R�R�RRyR�RaRbR�R(R
RBR�R�R�R�R((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt_partialParseTimeStrFs
" cC�sTd}d}}|jjj|�}|dk r
|jd�dk r�|jd�dk r�d|jd�|jd�|jd�f}q�d|jd�|jd�f}n|jd�}|d|jd�7}||j�
}||j�}d ||f}n|rAto+tjd
|||�|j ||�}n||t
|�fS(u�
test if giving C{s} matched CRE_TIMEHMS2, used by L{parse()}
@type s: string
@param s: date/time text to evaluate
@type sourceTime: struct_time
@param sourceTime: C{struct_time} value to use as the base
@rtype: tuple
@return: tuple of remained date/time text, datetime object and
an boolean value to describ if matched or not
uuminutesusecondsu%s:%s:%suhoursu%s:%su umeridianu%s
%sufound (meridian) [%s][%s][%s]N(RRFR�R�RRyR�RaRbR�R(R
RBR�R�R�R�R((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt_partialParseMeridianls*
cC�sBd }d}}|jjj|�}|d k r�|jd�d k r�d|jd�|jd�|jd�f}||jd�
}||jd�}nHd|jd�|jd�f}||jd�
}||jd�}d||f}n|r/totjd|||�|j ||�}n||t
|�fS(
u�
test if giving C{s} matched CRE_TIMEHMS, used by L{parse()}
@type s: string
@param s: date/time text to evaluate
@type sourceTime: struct_time
@param sourceTime: C{struct_time} value to use as the base
@rtype: tuple
@return: tuple of remained date/time text, datetime object and
an boolean value to describ if matched or not
uusecondsu%s:%s:%suhoursuminutesu%s:%su%s %sufound (hms)
[%s][%s][%s]N(RRFR�R�RRyR�RaRbR�R(R
RBR�R�R�R�R((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt_partialParseTimeStd�s(
c �s}t�d�fd����t�d�fd��}|j|d�d|�\}}|tj|d
��}||fS(uv
C{datetimeString} is as C{.parse}, C{sourceTime} has the same
semantic
meaning as C{.parse}, but now also accepts datetime objects.
C{tzinfo}
accepts a tzinfo object. It is advisable to use pytz.
@type datetimeString: string
@param datetimeString: date/time text to evaluate
@type sourceTime: struct_time, datetime, date, time
@param sourceTime: time value to use as the base
@type tzinfo: tzinfo
@param tzinfo: Timezone to apply to generated datetime
objs.
@type version: integer
@param version: style version, default will use L{Calendar}
parameter version value
@rtype: tuple
@return: tuple of: modified C{sourceTime} and the result
flag/context
see .parse for return code details.
u timetuplec�s�S(N(((R�(s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyt<lambda>�sulocalizec�s|jd��S(Nttzinfo(R(R�(R(s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyR�sR�RGi(tgetattrR�Rg( R
R�R�RRGtlocalizettime_structtret_codeR�((R�Rs:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pytparseDT�sc
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t|��tj�}nWdQXt|tj�s/tj|�}n|dkrD|jn|}|tkr`||fS||jfSdS(ug
Splits the given C{datetimeString} into tokens, finds the regex
patterns that match and then calculates a C{struct_time} value from
the chunks.
If C{sourceTime} is given then the C{struct_time} value will be
calculated from that value, otherwise from the current date/time.
If the C{datetimeString} is parsed and date/time value found,
then::
If C{version} equals to L{VERSION_FLAG_STYLE}, the second item
of
the returned tuple will be a flag to let you know what kind of
C{struct_time} value is being returned::
0 = not parsed at all
1 = parsed as a C{date}
2 = parsed as a C{time}
3 = parsed as a C{datetime}
If C{version} equals to L{VERSION_CONTEXT_STYLE}, the second
value
will be an instance of L{pdtContext}
@type datetimeString: string
@param datetimeString: date/time text to evaluate
@type sourceTime: struct_time
@param sourceTime: C{struct_time} value to use as the base
@type version: integer
@param version: style version, default will use L{Calendar}
parameter version value
@rtype: tuple
@return: tuple of: modified C{sourceTime} and the result
flag/context
uparse()u
(\w)\.(\s)u\1\2u(\w)[\'"](\s|$)u\1
\2u(\s|^)[\'"](\w)ucoercing datetime to timetupleusourceTime
is not a struct_timeu%remainedString (before parsing): [%s]uuhasDate:
[%s], hasTime: [%s]uremainedString: [%s]unot parsed [%s]N( RaRbR2tsubt
isinstanceRgRmRtstruct_timettupleR�RcRSR9RdRRRRRRRRRRR�RRR�RGR�tdateTimeFlag(
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Takes the given C{source} date, or current date if none is
passed, and increments it according to the values passed in
by month and/or year.
This routine is needed because Python's C{timedelta()}
function
does not allow for month or year increments.
@type source: struct_time
@param source: C{struct_time} value to increment
@type month: float or integer
@param month: optional number of months to increment
@type year: float or integer
@param year: optional number of years to increment
@rtype: datetime
@return: C{source} incremented by the number of months and/or years
iNigg(@iuyear is out of
rangeRRRR�(RRRR�t TypeErrorR�RRFR�RgtMAXYEARtMINYEARRlRRk(
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f�t!| �S(&u�Utilizes parse() after making judgements about
what datetime
information belongs together.
It makes logical groupings based on proximity and returns a parsed
datetime for each matched grouping of datetime text, along with
location info within the given inputString.
@type inputString: string
@param inputString: natural language text to evaluate
@type sourceTime: struct_time
@param sourceTime: C{struct_time} value to use as the base
@type version: integer
@param version: style version, default will use L{Calendar}
parameter version value
@rtype: tuple or None
@return: tuple of tuples in the format (parsed_datetime as
datetime.datetime, flags as int, start_pos as int,
end_pos as int, matched_text as string) or None if there
were no matches
u(\w)(\.)(\s)u\1
\3u(\w)(\'|")(\s|$)u(\s|^)(\'|")(\w)iiiiumodifieriuCRE_UNITS
matcheduunitsu day suffix trapped by unit matchuqtyu-uCRE_QUNITS
matcheduqunitsu!day suffix trapped by qunit
matchudateudateStrudateStdudayStruweekdyutimeStruhoursumeridianusecondsuminutesutimeStdi����uuCRE_UNITS_ONLY
matched [%s]u unitsOnlyu u
nlp_prefixiN("R2R
R9R;RRFRR�RyR�RR�RaRbRR�R�RRR�R�R�R�R�tCRE_UNITS_ONLYRdtCRE_NLP_PREFIXR�R<R�R�RgR�R#(R
tinputStringR�RGtorig_inputstringtstartpostmatchestleftmost_matchRtproximity_matchestcombinedtfrom_match_indexR�RRhR�t
endofprevioustbegofcurrenttparsed_datetimetflags((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pytnlp�s�
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contextlibtcontextmanagerRStpropertyRQR`RR�R�R�R�ReR�R�R�R�R�R�R�R�R�R�R�RRRRRRRRRRRRR�RjR>(((s:/usr/lib/python2.7/site-packages/parsedatetime/__init__.pyRD�sL EYE� 5 � 3
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�D]�\}}ddg|}t|||g�t||�}|r5|j�}|j|ddj |�||ddj |�f�q5q5WdS(u<
Initialize symbols and single character constants.
uiuamupmiu{0}.{1}.N(
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Default set of constants for parsedatetime.
If PyICU is present, then the class will first try to get PyICU
to return a locale specified by C{localeID}. If either C{localeID} is
None or if the locale does not exist within PyICU, then each of the
locales defined in C{fallbackLocales} is tried in order.
If PyICU is not present or none of the specified locales can be used,
then the class will initialize itself to the en_US locale.
if PyICU is not present or not requested, only the locales defined by
C{pdtLocales} will be searched.
uen_UScC�s�||_||_d|jkr5|jjd�nd|_||_ttddd��|_d|_ d|_
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