Niels Lohmann
9adb510a0d
The return value of json_sax::parse_error() was documented both as "must return false" and as "whether the parsing should continue", and the code just passed it on. For JSON text, parsing stopped anyway, but sax_parse() could report success for invalid input. The binary readers read on after the error, looping forever on a CBOR indefinite-length array without its end. Now false stops parsing, and true recovers from the error: - JSON text is repaired with the smallest local edit (insert a missing ',' or ':', remove a stray token, keep the readable part of a broken string or number, null for a value that cannot be read, close the innermost container at a wrong closing bracket and all of them at the end of the input), and parsing continues. The SAX events stay balanced, every key is followed by exactly one value, and each token is reported at most once. - The binary formats cannot resynchronize, so they stop, but complete the value read so far. sax_parse() returns false after any error. parse(), accept(), and the from_*() functions never recover and compile to the same code as before. Supersedes #4522. Signed-off-by: Niels Lohmann <mail@nlohmann.me>
20 lines
953 B
Plaintext
20 lines
953 B
Plaintext
byte 49: [json.exception.parse_error.101] parse error at line 3, column 20: syntax error while parsing array - unexpected string literal; expected ']'
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byte 51: [json.exception.parse_error.101] parse error at line 3, column 22: syntax error while parsing value - unexpected ']'; expected '[', '{', or a literal
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byte 70: [json.exception.parse_error.101] parse error at line 4, column 17: syntax error while parsing value - invalid literal; last read: '"valid": tru,'
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byte 86: [json.exception.parse_error.101] parse error at line 5, column 15: syntax error while parsing value - invalid number; expected digit after '.'; last read: '1.,'
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byte 109: [json.exception.parse_error.101] parse error at line 6, column 22: syntax error while parsing object - unexpected end of input; expected '}'
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valid JSON: false
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{
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"name": "Hello World",
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"nested": {
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"x": 1
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},
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"size": 1,
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"tags": [
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"a",
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"b"
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],
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"valid": null
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}
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