feat: add task 2 calculator draft

task2/command_translation.py

@@ -0,0 +1,24 @@
+from collections import deque
+from typing import Iterable
+from icecream import ic
+
+from math_objects import Operator, Token
+
+
+def translate(tokens: Iterable[Token]) -> Iterable[Token]:
+    operator_stack: deque[Operator] = deque()
+    previous_precedence = 0
+    for token in tokens:
+        if not isinstance(token, Operator):
+            yield token
+            continue
+        if token.precedence <= previous_precedence:
+            for item in reversed(operator_stack):
+                yield item
+            operator_stack.clear()
+        previous_precedence = token.precedence
+        operator_stack.append(token)
+    ic(len(operator_stack))
+    if operator_stack:
+        for item in reversed(operator_stack):
+            yield item