34 lines
677 B
Python
34 lines
677 B
Python
from __future__ import annotations
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# from expr import Expr
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class Symbols:
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"""
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All maths things (other than number) that will be parsed need to be of "Symbols" class
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"""
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instances = []
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def __init__(self, name):
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self.name = name
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Symbols.instances.append(self)
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def __repr__(self):
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return self.name
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def __str__(self):
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return self.name
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class Var(Symbols):
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"""
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variable, like 'x' in x+2
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"""
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instances = []
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def __init__(self, name):
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super().__init__(name)
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self.__class__.instances.append(self)
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"""def __add__(self, other) -> Expr:
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return Expr('+', [self, other])"""
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