33 lines
847 B
Python
33 lines
847 B
Python
from collections import deque
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from icecream import ic
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from typing import Iterable
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from command_translation import translate
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from tokenizer import tokenize
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from math_objects import Token, Integer, Operator
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equation: str = input()
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if not equation.strip():
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raise SyntaxError("Пустая строка")
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tokens: Iterable[Token] = tokenize(equation)
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sorted_tokens: Iterable[Token] = translate(tokens)
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token_stack: deque[Token] = deque()
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for token in sorted_tokens:
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if not isinstance(token, Operator):
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token_stack.append(token)
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continue
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try:
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b, a = token_stack.pop(), token_stack.pop()
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except IndexError:
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raise SyntaxError
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ic(a.value, token.value, b.value)
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new_integer = Integer(eval(f"{a.value}{token.value}{b.value}"))
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token_stack.append(new_integer)
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print(token_stack.pop().value)
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