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# Copyright (C) 2020 Sebastian Pipping <sebastian@pipping.org>
# Licensed under GPL v3 or later
class Confirmation:
_CONFIRM_GOOD = ("y", "Y")
_CONFIRM_BAD = ("", "n", "N")
_CONFIRM_KNOWN = _CONFIRM_GOOD + _CONFIRM_BAD
def __init__(self, messenger, ask):
self._messenger = messenger
self._ask = ask
def confirmed(self, question):
if not self._ask:
return True
question = self._messenger.format_question(question)
self._messenger.produce_air()
while True:
reply = input(f"{question} [y/N] ")
if reply in self._CONFIRM_KNOWN:
break
self._messenger.request_air(question)
return reply in self._CONFIRM_GOOD
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