/usr/lib64/python2.6/site-packages/mx/DateTime/mxDateTime
Edit: /usr/lib64/python2.6/site-packages/mx/DateTime/mxDateTime/mxDateTime_Python.py (18502B)
"""
Python implementation courtesy of Drew Csillag (StarMedia Network, Inc.)
This version has been somewhat modified by MAL. It is still fairly
rough though and not necessarily high performance...
XXX Still needs testing and checkup !!!
WARNING: Using this file is only recommended if you really must
use it for some reason. It is not being actively maintained !
"""
__version__ = '1.2.0 [Python]'
import time,types,exceptions,math
### Errors
class Error(exceptions.StandardError):
pass
class RangeError(Error):
pass
### Constants (internal use only)
month_offset=(
(0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365),
(0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366),
)
days_in_month=(
(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31),
(31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31),
)
### Helpers
def _IS_LEAPYEAR(d):
return ((d.year % 4 == 0)
and (
(d.year % 100 != 0)
or (d.year % 400 == 0)
)
)
def _YEAROFFSET(d):
return (
(d.year - 1) * 365
+ (d.year - 1) / 4
- (d.year - 1) / 100
+ (d.year - 1) / 400
)
class _EmptyClass:
pass
def createEmptyObject(Class,
_EmptyClass=_EmptyClass):
o = _EmptyClass()
o.__class__ = Class
return o
### DateTime class
class DateTime:
def __init__(self, year, month=1, day=1, hour=0, minute=0, second=0.0):
second=1.0 * second
if month <= 0:
raise RangeError, "year out of range (>0)"
#calculate absolute date
leap = (year % 4 == 0) and ((year % 100 != 0) or (year % 400 == 0))
#Negative values indicate days relative to the years end
if month < 0:
month = month + 13
if not (month >= 1 and month <= 12):
raise RangeError, "month out of range (1-12)"
#Negative values indicate days relative to the months end
if (day < 0):
day = day + days_in_month[leap][month - 1] + 1;
if not (day >= 1 and day <= days_in_month[leap][month - 1]):
raise RangeError, "day out of range"
year = year - 1
yearoffset = year * 365 + year / 4 - year / 100 + year / 400
year = year + 1
absdate = day + month_offset[leap][month - 1] + yearoffset;
self.absdate = absdate
self.year = year
self.month = month
self.day = day
self.day_of_week = (absdate - 1) % 7
self.day_of_year = absdate - yearoffset
self.days_in_month = days_in_month[leap][month - 1]
comdate = absdate - 693594
if not (hour >=0 and hour <= 23):
raise RangeError, "hour out of range (0-23)"
if not (minute >= 0 and minute <= 59):
raise RangeError, "minute out of range (0-59)"
if not (second >= 0.0 and
(second < 60.0 or
(hour == 23 and minute == 59 and second < 61.0))):
raise RangeError, "second out of range (0.0 - <60.0; <61.0 for 23:59)"
self.abstime = (hour * 3600 + minute * 60) + second
self.hour = hour
self.minute = minute
self.second = second
self.dst = -1
self.tz = "???"
self.is_leapyear = leap
self.yearoffset = yearoffset
if comdate < 0.0:
comdate = comdate - self.abstime / 86400.0
else:
comdate = comdate + self.abstime / 86400.0
self.comdate = comdate
def COMDate(self):
return self.comdate
def __str__(self):
return "%04d-%02d-%02d %02d:%02d:%05.2f" % (
self.year, self.month, self.day, self.hour, self.minute,
self.second)
def __getattr__(self, attr):
if attr == 'mjd':
return (self - mjd0).days
elif attr == 'jdn':
return (self - jdn0).days
elif attr == 'tjd':
return (self - jdn0).days % 10000
elif attr == 'tjd_myriad':
return int((self - jdn0).days) / 10000 + 240
elif attr == 'absdays':
return self.absdate - 1 + self.abstime / 86400.0
else:
try:
return self.__dict__[attr]
except:
raise AttributeError, attr
def __mul__(self, other):
raise TypeError, "bad operand type(s) for *"
def __div__(self, other):
raise TypeError, "bad operand type(s) for /"
def strftime(self, format_string="%c"):
return time.strftime(format_string, self.tuple())
# Alias
Format = strftime
def tuple(self):
return (self.year, self.month, self.day, self.hour, self.minute, self.second, self.day_of_week, 0, -1)
#return time.localtime(self.ticks())
def absvalues(self):
return self.absdate, self.abstime
def __float__(self):
return self.ticks()
def __int__(self):
return int(self.ticks)
def ticks(self, offset=0.0, dst=-1):
tticks=time.mktime(self.year, self.month, self.day, self.hour,
self.minute, self.second, self.day_of_week, 0, dst)
if tticks == -1:
raise OverflowError, "cannot convert value to a time value"
ticks = (1.0*tticks) + (self.abstime - int(self.abstime)) - offset
return ticks
def gmticks(self, offset=0.0):
from mx.DateTime import tz_offset
return (self-tz_offset(self)).ticks()
def __repr__(self):
return "
"% (
self.year, self.month, self.day, self.hour, self.minute,
self.second, id(self))
def __cmp__(self, other,
cmp=cmp):
if isinstance(other,DateTime):
cmpdate = cmp(self.absdate,other.absdate)
if cmpdate == 0:
return cmp(self.abstime,other.abstime)
else:
return cmpdate
elif type(other) == types.NoneType:
return -1
elif type(other) == types.StringType:
return -1
elif type(other) in (types.FloatType, types.LongType, types.IntType):
return 1
return -1
def __add__(self, other):
abstime=self.abstime
absdate=self.absdate
didadd=0
if type(other) == types.InstanceType:
if other.__class__ == DateTimeDelta:
abstime = abstime + other.seconds
didadd=1
elif other.__class__ == DateTime:
raise TypeError, "DateTime + DateTime is not supported"
else:
return other.__class__.__radd__(other, self)
elif type(other) == types.IntType or type(other) == types.FloatType:
abstime = abstime + other * 86400.0
didadd=1
if not didadd:
raise TypeError, "cannot add these two types"
if abstime >= 86400.0:
days = abstime / 86400.0
absdate = absdate + days
abstime = abstime - (86400.0 * int(days))
#print "absdate, abstime = ", absdate, abstime
elif abstime < 0.0:
days = int(((-abstime - 1) / 86400.0)) + 1
#days = int(-abstime / 86400.0)
absdate = absdate - days
abstime = abstime + 86400.0 * int(days)
if absdate < 1:
raise RangeError, "underflow while adding"
return DateTimeFromAbsDateTime(absdate, abstime)
def __radd__(self, other):
return DateTime.__add__(other, self)
def __sub__(self, other):
abstime=self.abstime
absdate=self.absdate
didsub=0
if type(other) == types.InstanceType:
if other.__class__ == DateTimeDelta:
abstime = abstime - other.seconds
didsub = 1
elif other.__class__ == DateTime:
absdate = absdate - other.absdate
abstime = abstime - other.abstime
return DateTimeDelta(absdate,0.0,0.0,abstime)
elif type(other) == types.IntType or type(other) == types.FloatType:
abstime = abstime - other * 86400.0;
didsub=1
if not didsub:
raise TypeError, "cannot subtract these two types"
if abstime >= 86400.0:
days = abstime / 86400.0
absdate = absdate + days
abstime = abstime - (86400.0 * days)
#print "absdate, abstime = ", absdate, abstime
elif abstime < 0.0:
#print "abstime < 0"
days = int( ((-abstime - 1) / 86400.0) + 1)
#days = -abstime / 86400.0
absdate = absdate - int(days)
abstime = (1.0*abstime) + (86400.0 * days)
#print "absdate, abstime", absdate, abstime
if absdate < 1:
raise RangeError, "underflow while adding"
return DateTimeFromAbsDateTime(absdate, abstime)
# Constants
mjd0 = DateTime(1858, 11, 17)
jdn0 = DateTime(-4713, 1, 1, 12, 0, 0.0)
# Other DateTime constructors
def DateTimeFromCOMDate(comdate):
absdate = int(comdate)
abstime = (comdate - float(absdate)) * 86400.0
if abstime < 0.0:
abstime = -abstime
absdate = absdate + 693594;
dt = DateTimeFromAbsDateTime(absdate, abstime)
dt.comdate = comdate
return dt
def DateTimeFromAbsDateTime(absdate, abstime):
# Create the object without calling its default constructor
dt = createEmptyObject(DateTime)
# Init. the object
abstime=1.0 * abstime
if abstime < 0 and abstime > -0.001: abstime = 0.0
if not (absdate > 0):
raise RangeError, "absdate out of range (>0)"
if not (abstime >= 0.0 and abstime <= 86400.0):
raise RangeError, "abstime out of range (0.0 - 86400.0) <%s>" % abstime
dt.absdate=absdate
dt.abstime=abstime
#calculate com date
comdate = 1.0 * (dt.absdate - 693594)
if comdate < 0.0:
comdate = comdate - dt.abstime / 86400.0
else:
comdate = comdate + dt.abstime / 86400.0
dt.comdate = comdate
#calculate the date
#print "absdate=", absdate
year = int((1.0 * absdate) / 365.2425)
#newApproximation:
while 1:
#print "year=", year
yearoffset = year * 365 + year / 4 - year / 100 + year / 400
#print "yearoffset=", yearoffset
#print "absdate=", absdate
if yearoffset >= absdate:
year = year - 1
#print "year = ", year
continue #goto newApproximation
year = year + 1
leap = (year % 4 == 0) and ((year % 100 != 0) or (year % 400 == 0))
dayoffset = absdate - yearoffset
#print "dayoffset=", dayoffset
if dayoffset > 365 and leap == 0:
#print "dayoffset=", dayoffset
continue #goto newApproximation
monthoffset = month_offset[leap]
for month in range(1, 13):
if monthoffset[month] >= dayoffset:
break
dt.year = year
dt.month = month
dt.day = dayoffset - month_offset[leap][month-1]
dt.day_of_week = (dt.absdate - 1) % 7
dt.day_of_year = dayoffset
break
#calculate the time
inttime = int(abstime)
hour = inttime / 3600
minute = (inttime % 3600) / 60
second = abstime - 1.0 * (hour*3600 + minute*60)
dt.hour = hour;
dt.minute = minute;
dt.second = second;
dt.days_in_month = days_in_month[leap][month - 1]
dt.dst = -1
dt.tz = "???"
dt.is_leapyear = leap
dt.yearoffset = yearoffset
return dt
def now(
time=time.time,float=float,localtime=time.localtime,
round=round,int=int,DateTime=DateTime,floor=math.floor):
ticks = time()
Y,M,D,h,m,s = localtime(ticks)[:6]
s = s + (ticks - floor(ticks))
return DateTime(Y,M,D,h,m,s)
def utc(
time=time.time,float=float,gmtime=time.gmtime,
round=round,int=int,DateTime=DateTime,floor=math.floor):
ticks = time()
Y,M,D,h,m,s = gmtime(ticks)[:6]
s = s + (ticks - floor(ticks))
return DateTime(Y,M,D,h,m,s)
# Aliases
Date = Timestamp = DateTime
# XXX Calendars are not supported:
def notSupported(*args,**kws):
raise Error,'calendars are not supported by the Python version of mxDateTime'
JulianDateTime = notSupported
### DateTimeDelta class
class DateTimeDelta:
def __init__(self, days=0, hours=0, minutes=0, seconds=0):
seconds = seconds + (days * 86400.0 + hours * 3600.0 + minutes * 60.0)
self.seconds = seconds
if seconds < 0.0:
seconds = -seconds
day = long(seconds / 86400.0)
seconds = seconds - (86400.0 * day)
wholeseconds = int(seconds)
hour = wholeseconds / 3600
minute = (wholeseconds % 3600) / 60
second = seconds - (hour * 3600.0 + minute * 60.0)
self.day = day
self.hour = hour
self.minute = minute
self.second = second
seconds=self.seconds
self.minutes = seconds / 60.0
self.hours = seconds / 3600.0
self.days = seconds / 86400.0
def __str__(self):
if self.day != 0:
if self.seconds >= 0.0:
r="%s:%02d:%02d:%05.2f" % (
self.day, self.hour, self.minute, self.second)
else:
r="-%s:%02d:%02d:%05.2f" % (
self.day, self.hour, self.minute, self.second)
else:
if self.seconds >= 0.0:
r="%02d:%02d:%05.2f" % (self.hour, self.minute, self.second)
else:
r="-%02d:%02d:%05.2f" % (self.hour, self.minute, self.second)
return r
def absvalues(self):
days=self.seconds / 86400
seconds=self.seconds - (days * 86400.0)
return days, seconds
def tuple(self):
return (self.day, self.hour, self.minute, self.second)
def strftime(self, format_string):
raise NotImplementedError
def __int__(self):
return int(self.seconds)
def __float__(self):
return self.seconds
def __cmp__(self, other, accuracy=0.0):
if (type(other) == types.InstanceType
and other.__class__ == DateTimeDelta):
diff=self.seconds - other.seconds
if abs(diff) > accuracy:
if diff > 0: return 1
return -1
elif type(other) == types.FloatType:
diff=self.seconds - other
if abs(diff) > accuracy:
if diff > 0: return 1
return -1
elif type(other) == types.IntType:
diff=self.seconds - other
if abs(diff) > accuracy:
if diff > 0: return 1
return -1
return 0
def __getattr__(self, attr):
seconds=self.__dict__['seconds']
if attr in ('hour', 'minute', 'second', 'day'):
if seconds >= 0.0:
return self.__dict__[attr]
else:
return -self.__dict__[attr]
else:
try:
return self.__dict__[attr]
except:
raise AttributeError, attr
def __div__(self, other):
if type(other) in (types.IntType, types.FloatType):
return DateTimeDelta(0.0,0.0,0.0,self.seconds / other)
elif (type(other) == types.InstanceType
and isinstance(other,DateTimeDelta)):
return DateTimeDelta(0.0,0.0,0.0,self.seconds / other.seconds)
raise TypeError, "bad operand types for /"
def __mul__(self, other):
if type(other) == types.IntType or type(other) == types.FloatType:
return DateTimeDelta(0.0,0.0,0.0,self.seconds * other)
else:
#print "type", type(other)
raise TypeError, "cannot multiply these two types"
def __rmul__(self, other):
return self.__mul__(other)
def __neg__(self):
return DateTimeDelta(0.0,0.0,0.0,-self.seconds)
def __repr__(self):
if self.day != 0:
if self.seconds >= 0.0:
strval="%s:%02d:%02d:%05.2f" % (self.day, self.hour,
self.minute, self.second)
else:
strval="-%s:%02d:%02d:%05.2f" % (self.day, self.hour,
self.minute, self.second)
else:
if self.seconds >= 0.0:
strval="%02d:%02d:%05.2f" % (self.hour, self.minute,
self.second)
else:
strval="-%02d:%02d:%05.2f" % (self.hour, self.minute,
self.second)
return "" % (strval, id(self))
def __abs__(self):
if self.seconds < 0:
return -self
return self
def __nonzero__(self):
return self.seconds != 0.0
def __add__(self, other):
if type(other) == types.InstanceType:
if isinstance(other,DateTime):
return other + self
elif isinstance(other,DateTimeDelta):
return DateTimeDelta(0.0,0.0,0.0,self.seconds + other.seconds)
# What about __radd__ ?
# Other DateTimeDelta constructors
def TimeDelta(hour=0.0, minute=0.0, second=0.0):
return DateTimeDelta(0.0, hours, minutes, seconds)
Time=TimeDelta
def DateTimeDeltaFromSeconds(seconds):
return DateTimeDelta(0.0,0.0,0.0,seconds)
def DateTimeDeltaFromDays(days):
return DateTimeDelta(days)
### Types
DateTimeType = DateTime
DateTimeDeltaType = DateTimeDelta
### Functions
def cmp(a,b,acc):
if isinstance(a,DateTime) and isinstance(b,DateTime):
diff = a.absdays - b.absdays
if (diff >= 0 and diff <= acc) or (diff < 0 and -diff <= acc):
return 0
elif diff < 0:
return 1
else:
return -1
elif isinstance(a,DateTimeDelta) and isinstance(b,DateTimeDelta):
diff = a.days - b.days
if (diff >= 0 and diff <= acc) or (diff < 0 and -diff <= acc):
return 0
elif diff < 0:
return 1
else:
return -1
else:
raise TypeError,"objects must be DateTime[Delta] instances"