andrew
08b864d31b
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The string unescape logic treated any code unit in the surrogate range (0xD800-0xDFFF) as the start of a surrogate pair. The concrete example from issue #39 (\uDC00\uDC00) was already rejected by the existing 0x10FFFF bounds check, but the check was misleading and would accept a lone low surrogate as a regular BMP code point if the second surrogate happened to be in a narrower range. Clean this up so the intent is obvious. Changes in src/parser3.h: - Fast path (n_string2): only treat high surrogates (0xD800-0xDBFF) as the start of a surrogate pair, and explicitly reject lone low surrogates (0xDC00-0xDFFF). - Slow path (t_hex2): same high-surrogate check, with explicit rejection of lone low surrogates. The t_hex3 path already validates that the second code unit is a low surrogate (0xDC00-0xDFFF), so no change is needed there. Also commit the current fuzzer corpus. Closes #39
54 lines
2.6 KiB
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54 lines
2.6 KiB
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