#!/usr/bin/env python3
__author__ = "Christian Heider Lindbjerg"
__doc__ = r"""
Created on 02/01/2020
"""
__all__ = [
"is_positive_and_mod_zero",
"is_zero_or_mod_zero",
"is_none_or_zero_or_negative",
"is_zero_or_mod_below",
"is_none_or_zero_or_negative_or_mod_zero",
"xor",
"xnor",
"nand",
]
import logging
import math
from typing import Any, Callable, Optional
from warg import Number
from warg.decorators import drop_unused_kws, passes_kws_to
_logger = logging.getLogger(__name__)
[docs]
@drop_unused_kws
def is_positive_and_mod_zero(
mod: Optional[Number],
counter: int,
*,
ret: Any = True,
alt: Any = False,
residual_printer: Callable = None,
) -> Any:
"""
test if mod is positive
then test if counter % mod is 0
if both tests are true return ret
else return alt
:param residual_printer:
:type residual_printer:
:param mod:
:param counter:
:param ret:
:param alt:
:return:"""
if mod == 0:
if residual_printer is not None:
residual_printer(math.inf)
return alt
m = counter % mod
if residual_printer is not None:
residual_printer(m)
return ret if (mod > 0 and (m == 0)) else alt
[docs]
@drop_unused_kws
def is_zero_or_mod_below(
mod: Optional[Number],
below: Number,
counter: int,
*,
ret: Any = True,
alt: Any = False,
residual_printer: Callable = None,
) -> Any:
"""
test if mod is zero or if counter % mod is 0
if any of the tests are true return ret
else return alt
:param residual_printer:
:type residual_printer:
:param below:
:type below:
:param mod:
:param counter:
:param ret:
:param alt:
:return:"""
if mod == 0:
if residual_printer is not None:
residual_printer(0)
return ret
m = counter % mod
if residual_printer is not None:
residual_printer(m - below)
return ret if (m < below) else alt
[docs]
@drop_unused_kws
def is_zero_or_mod_zero(
mod: Optional[Number],
counter: int,
*,
ret: Any = True,
alt: Any = False,
residual_printer: Callable = None,
) -> Any:
"""
test if mod is zero or if counter % mod is 0
if any of the tests are true return ret
else return alt
:param residual_printer:
:type residual_printer:
:param mod:
:param counter:
:param ret:
:param alt:
:return:"""
if mod == 0:
if residual_printer is not None:
residual_printer(0)
return ret
m = counter % mod
if residual_printer is not None:
residual_printer(m)
return ret if (m == 0) else alt
[docs]
@drop_unused_kws
def is_none_or_zero_or_negative(obj: Optional[Number], residual_printer: Callable = None) -> bool:
"""
:param residual_printer:
:type residual_printer:
:param obj:
:return:"""
is_none = obj is None
is_negative = False
if isinstance(obj, (int, float)):
is_negative = obj <= 0
if is_none:
if residual_printer is not None:
residual_printer(0)
else:
if residual_printer is not None:
residual_printer(obj)
return is_none or is_negative
[docs]
@passes_kws_to(is_zero_or_mod_zero)
def is_none_or_zero_or_negative_or_mod_zero(mod: Optional[Number], counter: int, **kwargs) -> bool:
"""
:param mod:
:param counter:
:param kwargs:
:return:"""
return is_none_or_zero_or_negative(mod, **kwargs) or is_zero_or_mod_zero(mod, counter, **kwargs)
[docs]
def xor(a: bool, b: bool) -> bool:
"""
:param a:
:param b:
:return:"""
return a ^ b
[docs]
def xnor(a: bool, b: bool) -> bool:
"""
:param a:
:param b:
:return:"""
return not xor(a, b)
[docs]
def nand(a: bool, b: bool) -> bool:
"""
:param a:
:param b:
:return:"""
return not (a and b)
if __name__ == "__main__":
assert is_zero_or_mod_below(5, 3, 7) == True
assert is_zero_or_mod_below(5, 2, 4) == False
for i in range(9):
_logger.info(is_zero_or_mod_zero(1, i))
for i in range(9):
_logger.info(is_zero_or_mod_zero(2, i))
_logger.info()
for i in range(8):
_logger.info(is_none_or_zero_or_negative_or_mod_zero(None, i, residual_printer=print))
for i in range(8):
_logger.info(is_none_or_zero_or_negative_or_mod_zero(True, 4 - i, residual_printer=print))
