Fix invalid UTF-8 handling in Char::Reader#previous_char
#14013
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HertzDevil
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kind:bug
straight-shoota
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Nov 23, 2023
Sija
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Nov 23, 2023
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| return yield (first << 18) &+ (second << 12) &+ (third << 6) &+ (fourth &- 0x3C82080), 4, nil |
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| return yield (first << 18) &+ (second << 12) &+ (third << 6) &+ (fourth &- 0x3C82080), 4, nil | |
| yield (first << 18) &+ (second << 12) &+ (third << 6) &+ (fourth &- 0x3C82080), 4, nil |
Blacksmoke16
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Dec 11, 2023
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Fixes #14010.
This relies on an explicit reverse DFA for the UTF-8 encoding, instead of actually "trying" 1 - 4 bytes for a valid byte sequence.