

'''simple docstring'''





from .balanced_parentheses import balanced_parentheses
from .stack import Stack







def     A_   (					_UpperCAmelCase					):
						return {"+": 1, "-": 1, "*": 2, "/": 2, "^": 3}.get(_UpperCAmelCase       ,			-1					)







def     A_   (					_UpperCAmelCase					):
						if not balanced_parentheses(_UpperCAmelCase					):
												raise ValueError("Mismatched parentheses"					)
						SCREAMING_SNAKE_CASE_:				Stack[str]							= Stack()
						SCREAMING_SNAKE_CASE_:				str							= []
						for char in expression_str:
												if char.isalpha() or char.isdigit():
																		postfix.append(_UpperCAmelCase					)
												elif char == "(":
																		stack.push(_UpperCAmelCase					)
												elif char == ")":
																		while not stack.is_empty() and stack.peek() != "(":
																								postfix.append(stack.pop()					)
																		stack.pop()
												else:
																		while not stack.is_empty() and precedence(_UpperCAmelCase					) <= precedence(stack.peek()					):
																								postfix.append(stack.pop()					)
																		stack.push(_UpperCAmelCase					)
						while not stack.is_empty():
												postfix.append(stack.pop()					)
						return " ".join(_UpperCAmelCase					)


if __name__ == "__main__":
						from doctest import testmod

						testmod()
						lowerCAmelCase							:						Tuple     			=		"""a+b*(c^d-e)^(f+g*h)-i"""

						print("""Infix to Postfix Notation demonstration:\n""")
						print("""Infix notation: """ + expression)
						print("""Postfix notation: """ + infix_to_postfix(expression))









import io
import json
import subprocess


lowerCAmelCase							:						Dict     			=		[
    ["""en""", """ru"""],
    ["""ru""", """en"""],
    ["""en""", """de"""],
    ["""de""", """en"""],
]

lowerCAmelCase							:						List[str]     			=		8







def     A_   (					_UpperCAmelCase       ,			_UpperCAmelCase					):
						SCREAMING_SNAKE_CASE_:				Dict							= {}
						for src, tgt in pairs:
												SCREAMING_SNAKE_CASE_:				Tuple							= f"{src}-{tgt}"
												SCREAMING_SNAKE_CASE_:				List[str]							= f"sacrebleu -t wmt19 -l {pair} --echo src".split()
												SCREAMING_SNAKE_CASE_:				int							= subprocess.run(_UpperCAmelCase       ,			stdout=subprocess.PIPE					).stdout.decode("utf-8"					).splitlines()
												SCREAMING_SNAKE_CASE_:				Optional[Any]							= f"sacrebleu -t wmt19 -l {pair} --echo ref".split()
												SCREAMING_SNAKE_CASE_:				Dict							= subprocess.run(_UpperCAmelCase       ,			stdout=subprocess.PIPE					).stdout.decode("utf-8"					).splitlines()
												SCREAMING_SNAKE_CASE_:				Tuple							= {"src": src_lines[:n_objs], "tgt": tgt_lines[:n_objs]}
						return text


lowerCAmelCase							:						Tuple     			=		get_all_data(pairs, n_objs)
lowerCAmelCase							:						Optional[Any]     			=		"""./fsmt_val_data.json"""
with io.open(filename, """w""", encoding="""utf-8""") as f:
						lowerCAmelCase							:						List[str]     			=		json.dump(text, f, indent=2, ensure_ascii=False)






