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43 lines
1.4 KiB
Python
43 lines
1.4 KiB
Python
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def tg_html_format(string: str) -> str:
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"""
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Format a string as Telegram HTML.
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The following characters will be considered control characters:
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- ``\uE01B``: start bold
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- ``\uE00B``: end bold
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- ``\uE011``: start italic
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- ``\uE001``: end italic
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- ``\uE012``: start underline
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- ``\uE002``: end underline
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- ``\uE015``: start strike
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- ``\uE005``: end strike
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- ``\uE01C``: start single-line code
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- ``\uE00C``: end single-line code
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- ``\uE01D``: start multi-line code
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- ``\uE00D``: end multi-line code
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:param string: The string to format.
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:return: The formatted string.
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.. warning:: For now, this is a Telethon implementation detail.
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.. todo:: This may cause denial of service attacks from users!
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"""
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string = string.replace("&", "&")
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string = string.replace("<", "<")
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string = string.replace(">", ">")
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string = string.replace("\uE01B", "<b>")
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string = string.replace("\uE00B", "</b>")
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string = string.replace("\uE011", "<i>")
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string = string.replace("\uE001", "</i>")
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string = string.replace("\uE015", "<s>")
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string = string.replace("\uE005", "</s>")
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string = string.replace("\uE012", "<u>")
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string = string.replace("\uE002", "</u>")
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string = string.replace("\uE01C", "<code>")
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string = string.replace("\uE00C", "</code>")
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string = string.replace("\uE01D", "<pre>")
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string = string.replace("\uE00D", "</pre>")
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return string
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