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-rwxr-xr-xDemo/classes/Dates.py140
1 files changed, 70 insertions, 70 deletions
diff --git a/Demo/classes/Dates.py b/Demo/classes/Dates.py
index 7f55d24..2c37a4e 100755
--- a/Demo/classes/Dates.py
+++ b/Demo/classes/Dates.py
@@ -39,11 +39,11 @@
# vi:set tabsize=8:
_MONTH_NAMES = [ 'January', 'February', 'March', 'April', 'May',
- 'June', 'July', 'August', 'September', 'October',
- 'November', 'December' ]
+ 'June', 'July', 'August', 'September', 'October',
+ 'November', 'December' ]
_DAY_NAMES = [ 'Friday', 'Saturday', 'Sunday', 'Monday',
- 'Tuesday', 'Wednesday', 'Thursday' ]
+ 'Tuesday', 'Wednesday', 'Thursday' ]
_DAYS_IN_MONTH = [ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ]
@@ -56,114 +56,114 @@ del dbm, dim
_INT_TYPES = type(1), type(1L)
-def _is_leap( year ): # 1 if leap year, else 0
+def _is_leap( year ): # 1 if leap year, else 0
if year % 4 != 0: return 0
if year % 400 == 0: return 1
return year % 100 != 0
-def _days_in_year( year ): # number of days in year
+def _days_in_year( year ): # number of days in year
return 365 + _is_leap(year)
-def _days_before_year( year ): # number of days before year
+def _days_before_year( year ): # number of days before year
return year*365L + (year+3)/4 - (year+99)/100 + (year+399)/400
-def _days_in_month( month, year ): # number of days in month of year
+def _days_in_month( month, year ): # number of days in month of year
if month == 2 and _is_leap(year): return 29
return _DAYS_IN_MONTH[month-1]
-def _days_before_month( month, year ): # number of days in year before month
+def _days_before_month( month, year ): # number of days in year before month
return _DAYS_BEFORE_MONTH[month-1] + (month > 2 and _is_leap(year))
-def _date2num( date ): # compute ordinal of date.month,day,year
+def _date2num( date ): # compute ordinal of date.month,day,year
return _days_before_year( date.year ) + \
- _days_before_month( date.month, date.year ) + \
- date.day
+ _days_before_month( date.month, date.year ) + \
+ date.day
-_DI400Y = _days_before_year( 400 ) # number of days in 400 years
+_DI400Y = _days_before_year( 400 ) # number of days in 400 years
-def _num2date( n ): # return date with ordinal n
+def _num2date( n ): # return date with ordinal n
if type(n) not in _INT_TYPES:
- raise TypeError, 'argument must be integer: ' + `type(n)`
+ raise TypeError, 'argument must be integer: ' + `type(n)`
- ans = Date(1,1,1) # arguments irrelevant; just getting a Date obj
+ ans = Date(1,1,1) # arguments irrelevant; just getting a Date obj
del ans.ord, ans.month, ans.day, ans.year # un-initialize it
ans.ord = n
- n400 = (n-1)/_DI400Y # # of 400-year blocks preceding
+ n400 = (n-1)/_DI400Y # # of 400-year blocks preceding
year, n = 400 * n400, n - _DI400Y * n400
more = n / 365
dby = _days_before_year( more )
if dby >= n:
- more = more - 1
- dby = dby - _days_in_year( more )
+ more = more - 1
+ dby = dby - _days_in_year( more )
year, n = year + more, int(n - dby)
- try: year = int(year) # chop to int, if it fits
+ try: year = int(year) # chop to int, if it fits
except (ValueError, OverflowError): pass
month = min( n/29 + 1, 12 )
dbm = _days_before_month( month, year )
if dbm >= n:
- month = month - 1
- dbm = dbm - _days_in_month( month, year )
+ month = month - 1
+ dbm = dbm - _days_in_month( month, year )
ans.month, ans.day, ans.year = month, n-dbm, year
return ans
-def _num2day( n ): # return weekday name of day with ordinal n
+def _num2day( n ): # return weekday name of day with ordinal n
return _DAY_NAMES[ int(n % 7) ]
class Date:
def __init__( self, month, day, year ):
- if not 1 <= month <= 12:
- raise ValueError, 'month must be in 1..12: ' + `month`
- dim = _days_in_month( month, year )
- if not 1 <= day <= dim:
- raise ValueError, 'day must be in 1..' + `dim` + ': ' + `day`
- self.month, self.day, self.year = month, day, year
- self.ord = _date2num( self )
+ if not 1 <= month <= 12:
+ raise ValueError, 'month must be in 1..12: ' + `month`
+ dim = _days_in_month( month, year )
+ if not 1 <= day <= dim:
+ raise ValueError, 'day must be in 1..' + `dim` + ': ' + `day`
+ self.month, self.day, self.year = month, day, year
+ self.ord = _date2num( self )
# don't allow setting existing attributes
def __setattr__( self, name, value ):
- if self.__dict__.has_key(name):
- raise AttributeError, 'read-only attribute ' + name
- self.__dict__[name] = value
+ if self.__dict__.has_key(name):
+ raise AttributeError, 'read-only attribute ' + name
+ self.__dict__[name] = value
def __cmp__( self, other ):
- return cmp( self.ord, other.ord )
+ return cmp( self.ord, other.ord )
# define a hash function so dates can be used as dictionary keys
def __hash__( self ):
- return hash( self.ord )
+ return hash( self.ord )
# print as, e.g., Mon 16 Aug 1993
def __repr__( self ):
- return '%.3s %2d %.3s ' % (
- self.weekday(),
- self.day,
- _MONTH_NAMES[self.month-1] ) + `self.year`
+ return '%.3s %2d %.3s ' % (
+ self.weekday(),
+ self.day,
+ _MONTH_NAMES[self.month-1] ) + `self.year`
# Python 1.1 coerces neither int+date nor date+int
def __add__( self, n ):
- if type(n) not in _INT_TYPES:
- raise TypeError, 'can\'t add ' + `type(n)` + ' to date'
- return _num2date( self.ord + n )
+ if type(n) not in _INT_TYPES:
+ raise TypeError, 'can\'t add ' + `type(n)` + ' to date'
+ return _num2date( self.ord + n )
__radd__ = __add__ # handle int+date
# Python 1.1 coerces neither date-int nor date-date
def __sub__( self, other ):
- if type(other) in _INT_TYPES: # date-int
- return _num2date( self.ord - other )
- else:
- return self.ord - other.ord # date-date
+ if type(other) in _INT_TYPES: # date-int
+ return _num2date( self.ord - other )
+ else:
+ return self.ord - other.ord # date-date
# complain about int-date
def __rsub__( self, other ):
- raise TypeError, 'Can\'t subtract date from integer'
+ raise TypeError, 'Can\'t subtract date from integer'
def weekday( self ):
- return _num2day( self.ord )
+ return _num2day( self.ord )
def today():
import time
@@ -175,30 +175,30 @@ def test( firstyear, lastyear ):
a = Date(9,30,1913)
b = Date(9,30,1914)
if `a` != 'Tue 30 Sep 1913':
- raise DateTestError, '__repr__ failure'
+ raise DateTestError, '__repr__ failure'
if (not a < b) or a == b or a > b or b != b:
- raise DateTestError, '__cmp__ failure'
+ raise DateTestError, '__cmp__ failure'
if a+365 != b or 365+a != b:
- raise DateTestError, '__add__ failure'
+ raise DateTestError, '__add__ failure'
if b-a != 365 or b-365 != a:
- raise DateTestError, '__sub__ failure'
+ raise DateTestError, '__sub__ failure'
try:
- x = 1 - a
- raise DateTestError, 'int-date should have failed'
+ x = 1 - a
+ raise DateTestError, 'int-date should have failed'
except TypeError:
- pass
+ pass
try:
- x = a + b
- raise DateTestError, 'date+date should have failed'
+ x = a + b
+ raise DateTestError, 'date+date should have failed'
except TypeError:
- pass
+ pass
if a.weekday() != 'Tuesday':
- raise DateTestError, 'weekday() failure'
+ raise DateTestError, 'weekday() failure'
if max(a,b) is not b or min(a,b) is not a:
- raise DateTestError, 'min/max failure'
+ raise DateTestError, 'min/max failure'
d = {a-1:b, b:a+1}
if d[b-366] != b or d[a+(b-a)] != Date(10,1,1913):
- raise DateTestError, 'dictionary failure'
+ raise DateTestError, 'dictionary failure'
# verify date<->number conversions for first and last days for
# all years in firstyear .. lastyear
@@ -206,13 +206,13 @@ def test( firstyear, lastyear ):
lord = _days_before_year( firstyear )
y = firstyear
while y <= lastyear:
- ford = lord + 1
- lord = ford + _days_in_year(y) - 1
- fd, ld = Date(1,1,y), Date(12,31,y)
- if (fd.ord,ld.ord) != (ford,lord):
- raise DateTestError, ('date->num failed', y)
- fd, ld = _num2date(ford), _num2date(lord)
- if (1,1,y,12,31,y) != \
- (fd.month,fd.day,fd.year,ld.month,ld.day,ld.year):
- raise DateTestError, ('num->date failed', y)
- y = y + 1
+ ford = lord + 1
+ lord = ford + _days_in_year(y) - 1
+ fd, ld = Date(1,1,y), Date(12,31,y)
+ if (fd.ord,ld.ord) != (ford,lord):
+ raise DateTestError, ('date->num failed', y)
+ fd, ld = _num2date(ford), _num2date(lord)
+ if (1,1,y,12,31,y) != \
+ (fd.month,fd.day,fd.year,ld.month,ld.day,ld.year):
+ raise DateTestError, ('num->date failed', y)
+ y = y + 1
generated by cgit v0.12 at 2024-11-18 07:05:03 (GMT)