def decodeOneDate(datestr, workdate=None, months=None, days=None, quarters=None, locale=None, isEndPeriod=False):
"""Parse a string representing a date or a period. Return ``datetime.date``
or ``tuple(year,month)`` or ``None``
:param datestr: the string to be interpreted
:param workdate: the :ref:`workdate`
:param months: names of months according to locale (just for caching)
:param days: names of weekdays according to locale (just for caching)
:param quarters: names of quarters according to locale (just for caching)
:param locale: the current locale (e.g: en, en_us, it)
:param isEndPeriod: if the string represents a period, return the end date
(default return the start date)
Special keywords like ``today`` or the name of a month can be translated in all languages
and support synonimous. (e.g: this month; e.g: month)
The input string can be:
* a year: e.g. 2007 or 07
* today, yesterday, tomorrow (can be translated in all languages)
* you can specify a number of days to add to today: e.g. 'today + 3' or 'today - 15'
* this week, next week, last week (can be translated in all languages)
* this month, next month, last month (can be translated in all languages )
* can be specified a number of months to add to current month: e.g. 'this month + 3' or 'this month - 24'
* the name of a quarter: e.g. Q1 or 1st quarter
* the name of a month: e.g. april or apr
* can be specified a year after the month: e.g. apr 07 or april 2007
* returns a tuple (year, month): if year is not specified in datestr, year is returned None
* the name of a weekday: e.g. monday or mon
* the date returned is the date of the given weekday in this week (relative to workdate)
* an iso date: e.g. 2008-04-28
* a date formatted according to locale (see babel doc): e.g. 4 28, 2008 (en_us) or 28-4-08 (it)
various separators are admitted: 28-4-08, 28/4/08, 28 4 08"""
def addToDay(datestr, date):
if '+' in datestr:
days = int(datestr.split('+')[1].strip())
return date + datetime.timedelta(days)
if '-' in datestr:
days = int(datestr.split('-')[1].strip())
return date - datetime.timedelta(days)
return date
def addToMonth(datestr, date, addmonth=0):#l'errore è nel chiamate che passa addmonth sbagliato
delta=0
if '+' in datestr:
delta = int(datestr.split('+')[1].strip())
if '-' in datestr:
delta = -int(datestr.split('-')[1].strip())
month = date.month + addmonth+ delta
year = date.year
while month <= 0:
month = month + 12
year = year - 1
while month > 12:
month = month - 12
year = year + 1
return datetime.date(year, month, 1)
datestr = datestr or ''
datestr = datestr.strip()
if datestr:
months = months or gnrlocale.getMonthNames(locale)
def_months = gnrlocale.getMonthNames(DEFAULT_LOCALE)
days = days or gnrlocale.getDayNames(locale)
def_days = gnrlocale.getDayNames(DEFAULT_LOCALE)
quarters = quarters or gnrlocale.getQuarterNames(locale)
def_quarters = gnrlocale.getQuarterNames(DEFAULT_LOCALE)
dateStart = None
dateEnd = None
workdate = workdate or datetime.date.today()
if datestr.isdigit() and len(datestr) in (2, 4): # a full year
year = yearDecode(datestr)
dateStart = datetime.date(year, 1, 1)
if isEndPeriod:
dateEnd = datetime.date(year, 12, 31)
elif checkDateKeywords('today', datestr, locale): # today
dateStart = addToDay(datestr, workdate)
elif checkDateKeywords('yesterday', datestr, locale): # yesterday
dateStart = addToDay(datestr, workdate - datetime.timedelta(1))
elif checkDateKeywords('tomorrow', datestr, locale): # tomorrow
dateStart = addToDay(datestr, workdate + datetime.timedelta(1))
elif checkDateKeywords(('this week', 'next week', 'last week'), datestr, locale): # relative week
j = workdate.weekday()
dateStart = workdate - datetime.timedelta(j)
if checkDateKeywords('last week', datestr, locale):
dateStart = dateStart - datetime.timedelta(7)
elif checkDateKeywords('next week', datestr, locale):
dateStart = dateStart + datetime.timedelta(7)
if '+' in datestr:
dateStart = dateStart + datetime.timedelta(7*int(datestr.split('+')[1]))
if '-' in datestr:
dateStart = dateStart - datetime.timedelta(7*int(datestr.split('-')[1]))
if isEndPeriod:
dateEnd = dateStart + datetime.timedelta(6)
elif checkDateKeywords(('this month', 'next month', 'last month'), datestr, locale): # relative month
if checkDateKeywords('last month', datestr, locale):
dateStart = addToMonth(datestr, workdate, -1)
elif checkDateKeywords('next month', datestr, locale):
dateStart = addToMonth(datestr, workdate, 1)
else:
dateStart = addToMonth(datestr, workdate)
if isEndPeriod:
dateEnd = monthEnd(date=dateStart)
elif anyWordIn(quarters.keys(), datestr): # quarter
qt, year = splitAndStrip(datestr, sep=' ', n=1, fixed=2)
year = yearDecode(year)
qt = quarters[datestr]
dateStart = (year, qt * 3 - 2)
if isEndPeriod:
dateEnd = (year, qt * 3)
elif anyWordIn(def_quarters.keys(), datestr): # quarter
qt, year = splitAndStrip(datestr, sep=' ', n=1, fixed=2)
year = yearDecode(year)
qt = def_quarters[datestr]
dateStart = (year, qt * 3 - 2)
if isEndPeriod:
dateEnd = (year, qt * 3)
elif anyWordIn(months.keys(), datestr): # month name
month, year = splitAndStrip(datestr, sep=' ', n=1, fixed=2)
year = yearDecode(year)
month = months[month]
dateStart = (year, month)
elif anyWordIn(def_months.keys(), datestr): # month name
month, year = splitAndStrip(datestr, sep=' ', n=1, fixed=2)
year = yearDecode(year)
month = def_months[month]
dateStart = (year, month)
elif datestr in days: # weekday name
dateStart = workdate + datetime.timedelta(days[datestr] - workdate.weekday())
elif datestr in def_days: # weekday name
dateStart = workdate + datetime.timedelta(def_days[datestr] - workdate.weekday())
elif re.match('\d{4}-\d{2}-\d{2}', datestr): # ISO date
date_items = [int(el) for el in wordSplit(datestr)[0:3]]
dateStart = datetime.date(*[int(el) for el in wordSplit(datestr)[0:3]])
else: # a date in local format
dateStart = gnrlocale.parselocal(datestr, datetime.date, locale)
if isEndPeriod and dateEnd:
return dateEnd
else:
return dateStart
def decodeOneDate(datestr, workdate=None, months=None, days=None, quarters=None, locale=None, isEndPeriod=False):
"""Parse a string representing a date or a period. Return ``datetime.date``
or ``tuple(year,month)`` or ``None``
:param datestr: the string to be interpreted
:param workdate: the :ref:`workdate`
:param months: names of months according to locale (just for caching)
:param days: names of weekdays according to locale (just for caching)
:param quarters: names of quarters according to locale (just for caching)
:param locale: the current locale (e.g: en, en_us, it)
:param isEndPeriod: if the string represents a period, return the end date
(default return the start date)
Special keywords like ``today`` or the name of a month can be translated in all languages
and support synonimous. (e.g: this month; e.g: month)
The input string can be:
* a year: e.g. 2007 or 07
* today, yesterday, tomorrow (can be translated in all languages)
* you can specify a number of days to add to today: e.g. 'today + 3' or 'today - 15'
* this week, next week, last week (can be translated in all languages)
* this month, next month, last month (can be translated in all languages )
* can be specified a number of months to add to current month: e.g. 'this month + 3' or 'this month - 24'
* the name of a quarter: e.g. Q1 or 1st quarter
* the name of a month: e.g. april or apr
* can be specified a year after the month: e.g. apr 07 or april 2007
* returns a tuple (year, month): if year is not specified in datestr, year is returned None
* the name of a weekday: e.g. monday or mon
* the date returned is the date of the given weekday in this week (relative to workdate)
* an iso date: e.g. 2008-04-28
* a date formatted according to locale (see babel doc): e.g. 4 28, 2008 (en_us) or 28-4-08 (it)
various separators are admitted: 28-4-08, 28/4/08, 28 4 08"""
def addToDay(datestr, date):
if '+' in datestr:
days = int(datestr.split('+')[1].strip())
return date + datetime.timedelta(days)
if '-' in datestr:
days = int(datestr.split('-')[1].strip())
return date - datetime.timedelta(days)
return date
def addToMonth(datestr, date, addmonth=0):#l'errore è nel chiamate che passa addmonth sbagliato
delta=0
if '+' in datestr:
delta = int(datestr.split('+')[1].strip())
if '-' in datestr:
delta = -int(datestr.split('-')[1].strip())
month = date.month + addmonth+ delta
year = date.year
while month <= 0:
month = month + 12
year = year - 1
while month > 12:
month = month - 12
year = year + 1
return datetime.date(year, month, 1)
datestr = datestr or ''
datestr = datestr.strip()
if datestr:
months = months or gnrlocale.getMonthNames(locale)
def_months = gnrlocale.getMonthNames(DEFAULT_LOCALE)
days = days or gnrlocale.getDayNames(locale)
def_days = gnrlocale.getDayNames(DEFAULT_LOCALE)
quarters = quarters or gnrlocale.getQuarterNames(locale)
def_quarters = gnrlocale.getQuarterNames(DEFAULT_LOCALE)
dateStart = None
dateEnd = None
workdate = workdate or datetime.date.today()
if datestr.isdigit() and len(datestr) in (2, 4): # a full year
year = yearDecode(datestr)
dateStart = datetime.date(year, 1, 1)
if isEndPeriod:
dateEnd = datetime.date(year, 12, 31)
elif checkDateKeywords('today', datestr, locale): # today
dateStart = addToDay(datestr, workdate)
elif checkDateKeywords('yesterday', datestr, locale): # yesterday
dateStart = addToDay(datestr, workdate - datetime.timedelta(1))
elif checkDateKeywords('tomorrow', datestr, locale): # tomorrow
dateStart = addToDay(datestr, workdate + datetime.timedelta(1))
elif checkDateKeywords(('this week', 'next week', 'last week'), datestr, locale): # relative week
j = workdate.weekday()
dateStart = workdate - datetime.timedelta(j)
if checkDateKeywords('last week', datestr, locale):
dateStart = dateStart - datetime.timedelta(7)
elif checkDateKeywords('next week', datestr, locale):
dateStart = dateStart + datetime.timedelta(7)
if '+' in datestr:
dateStart = dateStart + datetime.timedelta(7*int(datestr.split('+')[1]))
if '-' in datestr:
dateStart = dateStart - datetime.timedelta(7*int(datestr.split('-')[1]))
if isEndPeriod:
dateEnd = dateStart + datetime.timedelta(6)
elif checkDateKeywords(('this month', 'next month', 'last month'), datestr, locale): # relative month
if checkDateKeywords('last month', datestr, locale):
dateStart = addToMonth(datestr, workdate, -1)
elif checkDateKeywords('next month', datestr, locale):
dateStart = addToMonth(datestr, workdate, 1)
else:
dateStart = addToMonth(datestr, workdate)
if isEndPeriod:
dateEnd = monthEnd(date=dateStart)
elif anyWordIn(quarters.keys(), datestr): # quarter
qt, year = splitAndStrip(datestr, sep=' ', n=1, fixed=2)
year = yearDecode(year)
qt = quarters[qt]
dateStart = (year, qt * 3 - 2)
if isEndPeriod:
dateEnd = (year, qt * 3)
elif anyWordIn(def_quarters.keys(), datestr): # quarter
qt, year = splitAndStrip(datestr, sep=' ', n=1, fixed=2)
year = yearDecode(year)
qt = def_quarters[datestr]
dateStart = (year, qt * 3 - 2)
if isEndPeriod:
dateEnd = (year, qt * 3)
elif anyWordIn(months.keys(), datestr): # month name
month, year = splitAndStrip(datestr, sep=' ', n=1, fixed=2)
year = yearDecode(year)
month = months[month]
dateStart = (year, month)
elif anyWordIn(def_months.keys(), datestr): # month name
month, year = splitAndStrip(datestr, sep=' ', n=1, fixed=2)
year = yearDecode(year)
month = def_months[month]
dateStart = (year, month)
elif datestr in days: # weekday name
dateStart = workdate + datetime.timedelta(days[datestr] - workdate.weekday())
elif datestr in def_days: # weekday name
dateStart = workdate + datetime.timedelta(def_days[datestr] - workdate.weekday())
elif re.match('\d{4}-\d{2}-\d{2}', datestr): # ISO date
date_items = [int(el) for el in wordSplit(datestr)[0:3]]
dateStart = datetime.date(*[int(el) for el in wordSplit(datestr)[0:3]])
else: # a date in local format
dateStart = gnrlocale.parselocal(datestr, datetime.date, locale)
if isEndPeriod and dateEnd:
return dateEnd
else:
return dateStart
def checkDateKeywords(keywords,datestr,locale):
return anyWordIn(gnrlocale.getDateKeywords(keywords, locale), datestr) or anyWordIn(
gnrlocale.getDateKeywords(keywords, DEFAULT_LOCALE), datestr)
def checkDateKeywords(keywords,datestr,locale):
return anyWordIn(gnrlocale.getDateKeywords(keywords, locale), datestr) or anyWordIn(
gnrlocale.getDateKeywords(keywords, DEFAULT_LOCALE), datestr)
