2024-02-08 17:12:00 +01:00
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#!/usr/bin/env python
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#
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# A library that provides a Python interface to the Telegram Bot API
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2024-02-19 20:06:25 +01:00
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# Copyright (C) 2015-2024
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2024-02-08 17:12:00 +01:00
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# Leandro Toledo de Souza <devs@python-telegram-bot.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser Public License for more details.
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#
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# You should have received a copy of the GNU Lesser Public License
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# along with this program. If not, see [http://www.gnu.org/licenses/].
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"""This module contains helper functions related to parsing updates and their contents.
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2024-02-08 18:36:28 +01:00
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.. versionadded:: 20.8
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2024-02-08 17:12:00 +01:00
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Warning:
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Contents of this module are intended to be used internally by the library and *not* by the
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user. Changes to this module are not considered breaking changes and may not be documented in
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the changelog.
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"""
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from typing import FrozenSet, Optional
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from telegram._utils.types import SCT
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def parse_chat_id(chat_id: Optional[SCT[int]]) -> FrozenSet[int]:
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"""Accepts a chat id or collection of chat ids and returns a frozenset of chat ids."""
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if chat_id is None:
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return frozenset()
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if isinstance(chat_id, int):
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return frozenset({chat_id})
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return frozenset(chat_id)
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def parse_username(username: Optional[SCT[str]]) -> FrozenSet[str]:
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"""Accepts a username or collection of usernames and returns a frozenset of usernames.
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Strips the leading ``@`` if present.
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"""
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if username is None:
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return frozenset()
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if isinstance(username, str):
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return frozenset({username[1:] if username.startswith("@") else username})
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return frozenset({usr[1:] if usr.startswith("@") else usr for usr in username})
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