gh-98401: Reject invalid escape sequences in strings #98404
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A backslash-character pair that is not a valid escape sequence now generates a SyntaxError.
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I convert this PR to a draft since this change seems to be more controversial than expected: #98401 |
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PR abandoned in favor of #99011 |
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A backslash-character pair that is not a valid escape sequence now generates a SyntaxError.