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Feat(API): Allow to init tokens from builtin types

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This commit is contained in:
Bertrand Benjamin 2018-12-13 10:44:52 +01:00
parent 780772ec2d
commit c9fe2ede7d
4 changed files with 101 additions and 23 deletions
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12
mapytex/calculus/API/tokens/__init__.py
View File

@ -60,16 +60,16 @@ def factory(exp, name="", ancestor=None):
if isinstance(mo, MOnumber):
if isinstance(mo.value, int):
return Integer(mo, name, ancestor)
return Integer.from_mo(mo, name, ancestor)
elif isinstance(mo.value, _Decimal):
return Decimal(mo, name, ancestor)
return Decimal.from_mo(mo, name, ancestor)
raise TypeError(f"Can't build from MOnumber ({mo}) neither int nor decimal")
elif isinstance(mo, MOFraction):
if isinstance(mo._denominator, MOnumber) and \
isinstance(mo._numerator, MOnumber):
return Fraction(mo, name, ancestor)
return Fraction.from_mo(mo, name, ancestor)
raise TypeError(f"Can't build from MOFraction ({mo}) numerator and denominator are not MOnumber")
@ -79,13 +79,13 @@ def factory(exp, name="", ancestor=None):
if isinstance(mo, MOstr) or \
(isinstance(mo, MOMonomial) and mo.power.value == 1) or \
(isinstance(mo, MOpolynomial) and mo.power.value == 1):
return Linear(mo, name, ancestor)
return Linear.from_mo(mo, name, ancestor)
elif (isinstance(mo, MOstrPower) and mo.power.value == 2) or \
(isinstance(mo, MOMonomial) and mo.power.value == 2) or \
(isinstance(mo, MOpolynomial) and mo.power.value == 2):
return Quadratic(mo, name, ancestor)
return Quadratic.from_mo(mo, name, ancestor)
else:
return Polynomial(mo, name, ancestor)
return Polynomial.from_mo(mo, name, ancestor)
else:
raise TypeError(f"{type(mo)} is unknown MathObject")

66
mapytex/calculus/API/tokens/number.py
View File

@ -11,6 +11,7 @@ Tokens representing interger and decimal
"""
from .token import Token
from ...core.MO import MO
from ...core.MO.mo import MOnumber
from ...core.MO.fraction import MOFraction
from decimal import Decimal as _Decimal
@ -19,16 +20,36 @@ __all__ = ["Integer", "Decimal"]
class Integer(Token):
""" Token representing a integer """
""" Token representing a integer
def __init__(self, mo, name="", ancestor=None):
:example:
>>> Integer(4)
<Integer 4>
>>> a = MOnumber(4)
>>> Integer.from_mo(a)
<Integer 4>
"""
def __init__(self, a, name="", ancestor=None):
if not isinstance(a, MO):
if not isinstance(a, int):
raise TypeError
mo = MOnumber(a)
else:
mo = a
Token.__init__(self, mo, name, ancestor)
self._mathtype = 'entier'
@classmethod
def from_mo(cls, mo, name="", ancestor=None):
if not isinstance(mo, MOnumber):
raise TypeError
if not isinstance(mo.value, int):
raise TypeError
Token.__init__(self, mo, name, ancestor)
self._mathtype = 'entier'
return cls(mo, name, ancestor)
@classmethod
def random(cls):
@ -38,14 +59,26 @@ class Decimal(Token):
""" Token representing a decimal """
def __init__(self, mo, name="", ancestor=None):
def __init__(self, a, name="", ancestor=None):
if not isinstance(a, MO):
if isinstance(a, (str, float)):
mo = MOnumber(Decimal(a))
else:
raise TypeError
else:
mo = a
self._mathtype = 'décimal'
Token.__init__(self, mo, name, ancestor)
@classmethod
def from_mo(cls, mo, name="", ancestor=None):
if not isinstance(mo, MOnumber):
raise TypeError
if not isinstance(mo.value, _Decimal):
raise TypeError
Token.__init__(self, mo, name, ancestor)
self._mathtype = 'décimal'
return cls(mo, name, ancestor)
@classmethod
def random(cls):
@ -55,7 +88,21 @@ class Fraction(Token):
""" Token representing a fraction """
def __init__(self, mo, name="", ancestor=None):
def __init__(self, a, name="", ancestor=None):
if not isinstance(a, MO):
if isinstance(a, str):
num, denom = a.split('/')
mo = MOFraction(num, denom)
else:
raise TypeError
else:
mo = a
self._mathtype = 'fraction'
Token.__init__(self, mo, name, ancestor)
@classmethod
def from_mo(cls, mo, name="", ancestor=None):
if not isinstance(mo, MOFraction):
raise TypeError
if not isinstance(mo._numerator, MOnumber):
@ -63,8 +110,7 @@ class Fraction(Token):
if not isinstance(mo._denominator, MOnumber):
raise TypeError
Token.__init__(self, mo, name, ancestor)
self._mathtype = 'fraction'
return cls(mo, name, ancestor)
@classmethod
def random(cls):

23
mapytex/calculus/API/tokens/polynomial.py
View File

@ -11,6 +11,7 @@ Tokens representing polynomials functions
"""
from .token import Token
from ...core.MO import MO
__all__ = ["Polynomial", "Quadratic", "Linear"]
@ -18,11 +19,23 @@ class Polynomial(Token):
""" Token representing a polynomial """
def __init__(self, mo, name="", ancestor=None):
def __init__(self, a, name="", ancestor=None):
if not isinstance(a, MO):
if isinstance(a, str):
raise TypeError
else:
raise TypeError
else:
mo = a
Token.__init__(self, mo, name, ancestor)
self._mathtype = 'polynome'
@classmethod
def from_mo(cls, mo, name="", ancestor=None):
return cls(mo, name, ancestor)
@classmethod
def random(cls):
raise NotImplemented
@ -39,26 +52,26 @@ class Polynomial(Token):
""" Call a Polynomial to evaluate itself on value """
pass
class Linear(Token):
class Linear(Polynomial):
""" Token representing a linear """
def __init__(self, mo, name="", ancestor=None):
Token.__init__(self, mo, name, ancestor)
Polynomial.__init__(self, mo, name, ancestor)
self._mathtype = 'affine'
@classmethod
def random(cls):
raise NotImplemented
class Quadratic(Token):
class Quadratic(Polynomial):
""" Token representing a quadratic """
def __init__(self, mo, name="", ancestor=None):
Token.__init__(self, mo, name, ancestor)
Polynomial.__init__(self, mo, name, ancestor)
self._mathtype = 'polynome du 2nd degré'
@classmethod

19
mapytex/calculus/API/tokens/token.py
View File

@ -63,6 +63,25 @@ class Token(object):
def __tex__(self):
return self._mo.__tex__
def __add__(self, other):
""" Adding 2 Tokens or a Token and a Expression
:example:
>>> from .number import Integer
>>> a = Integer(3)
"""
from ..expression import Expression
from ...core import Tree
from . import factory
if not isinstance(other, Token):
_other = factory(other)
else:
_other = other
tree = Tree('+', self.mo, _other.mo)
ans = Expression(tree).simplify()
return ans