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Follow each binary format's UTF-8 rule: strict writers (CBOR/UBJSON/BJData/BSON), lenient readers (#5741)

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Signed-off-by: Niels Lohmann <mail@nlohmann.me>
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Niels Lohmann
2026-10-04 12:13:48 +02:00
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parent 40021f38fb
commit f56b418c56
32 changed files with 651 additions and 128 deletions
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docs/mkdocs/docs/features/macros.md
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@@ -138,6 +138,20 @@ using the library with compilers that do not fully support C++11 and may only wo
See [full documentation of `JSON_SKIP_UNSUPPORTED_COMPILER_CHECK`](../api/macros/json_skip_unsupported_compiler_check.md).
## `JSON_STRICT_BINARY_UTF8`
When defined to `1`, [`to_cbor`](../api/basic_json/to_cbor.md), [`to_ubjson`](../api/basic_json/to_ubjson.md),
[`to_bjdata`](../api/basic_json/to_bjdata.md), and [`to_bson`](../api/basic_json/to_bson.md) throw
[`type_error.316`](../home/exceptions.md#jsonexceptiontype_error316) for a string value or object key that is not
valid UTF-8. The default value is `0`, which writes the bytes unchanged as before version 3.13.0; this is planned to
become the default in version 4.0.0.
The check can also be enabled with the CMake option
[`JSON_StrictBinaryUTF8`](../integration/cmake.md#json_strictbinaryutf8) (`OFF` by default) which sets
`JSON_STRICT_BINARY_UTF8` accordingly.
See [full documentation of `JSON_STRICT_BINARY_UTF8`](../api/macros/json_strict_binary_utf8.md).
## `JSON_STRICT_NUL_HANDLING`
When defined to `1`, a `'\0'` (NUL) byte anywhere in the input is rejected with `parse_error.101`, like any other