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Parsing of the “doc/qbk/04_http/08_chunked_encoding_zh_Hans.qbk” file was enforced. 06/26/2026
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Chunk Body: First
Extension: quality = 1.0
Chunk Body: Hello, world!
Extension: file = abc.txt
Extension: quality = 0.7
Chunk Body: The Next Chunk
Extension: last
Chunk Body: Last one
Expires: never
Content-MD5: f4a5c16584f03d90
Chunk Body: First
Extension: 分块体：First
扩展：quality = 1.0
Chunk Body: 分块体：Hello, world!
Extension: 扩展：file = abc.txt
Extension: 扩展：quality = 0.7
Chunk Body: 分块体：The Next Chunk
Extension: last
Chunk Body: 扩展：last
分块体：Last one
Expires: never
Content-MD5: f4a5c16584f03d90
06/18/2026
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Translation completed
Translation completed 06/18/2026
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Translation changed
Chunk Body: First
Extension: quality = 1.0
Chunk Body: Hello, world!
Extension: file = abc.txt
Extension: quality = 0.7
Chunk Body: The Next Chunk
Extension: last
Chunk Body: Last one
Expires: never
Content-MD5: f4a5c16584f03d90
Chunk Body: First
Extension: quality = 1.0
Chunk Body: Hello, world!
Extension: file = abc.txt
Extension: quality = 0.7
Chunk Body: The Next Chunk
Extension: last
Chunk Body: Last one
Expires: never
Content-MD5: f4a5c16584f03d90
06/18/2026
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Translation changed
HTTP/1.1 200 OK\r\n
Server: test\r\n
Trailer: Expires, Content-MD5\r\n
Transfer-Encoding: chunked\r\n
\r\n
5\r\n
First\r\n
d;quality=1.0\r\n
Hello, world!\r\n
e;file=abc.txt;quality=0.7\r\n
The Next Chunk\r\n
8;last\r\n
Last one\r\n
0\r\n
Expires: never\r\n
Content-MD5: f4a5c16584f03d90\r\n
\r\n
HTTP/1.1 200 OK\r\n
Server: test\r\n
Trailer: Expires, Content-MD5\r\n
Transfer-Encoding: chunked\r\n
\r\n
5\r\n
First\r\n
d;quality=1.0\r\n
Hello, world!\r\n
e;file=abc.txt;quality=0.7\r\n
The Next Chunk\r\n
8;last\r\n
Last one\r\n
0\r\n
Expires: never\r\n
Content-MD5: f4a5c16584f03d90\r\n
\r\n
06/18/2026
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Translation changed
Output
Output输出
06/18/2026
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Input
Input输入
06/18/2026
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Chunk Parsing Example Output
Chunk Parsing Example Output分块解析示例输出
06/18/2026
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Given the HTTP response as input on the left, the output of the function shown above is shown on the right:
Given the HTTP response as input on the left, the output of the function shown above is shown on the right:给定左侧的 HTTP 响应作为输入，上述函数的输出结果如右侧所示：
06/18/2026
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This example will read a message header from the stream, and then manually read each chunk. It recognizes the chunk boundaries and outputs the contents of each chunk as it comes in. Any chunk extensions are printed, each extension on its own line. Finally, any trailers promised in the header are printed.
This example will read a message header from the stream, and then manually read each chunk. It recognizes the chunk boundaries and outputs the contents of each chunk as it comes in. Any chunk extensions are printed, each extension on its own line. Finally, any trailers promised in the header are printed.本示例将从流中读取消息头部，然后手动读取每个分块。示例能够识别分块边界，并在分块到达时输出其内容。所有分块扩展都会被打印，每个扩展单独占一行。最后，还会打印头部中承诺的尾部字段。
06/18/2026
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Translation changed
Set a callback to be invoked on chunk body data.

The callback will be invoked one or more times to provide buffers corresponding to the chunk body for the current chunk. The callback receives the number of octets remaining in this chunk body including the octets in the buffer provided.

The callback must return the number of octets actually consumed. Any octets not consumed will be presented again in a subsequent invocation of the callback. The implementation type-erases the callback without requiring a dynamic allocation. For this reason, the callback object is passed by a non-constant reference.

The function object will be called with this equivalent signature:
Set a callback to be invoked on chunk body data.

The callback will be invoked one or more times to provide buffers corresponding to the chunk body for the current chunk. The callback receives the number of octets remaining in this chunk body including the octets in the buffer provided.

The callback must return the number of octets actually consumed. Any octets not consumed will be presented again in a subsequent invocation of the callback. The implementation type-erases the callback without requiring a dynamic allocation. For this reason, the callback object is passed by a non-constant reference.

The function object will be called with this equivalent signature:设置一个回调函数，在分块体数据到达时调用。

该回调函数会被调用一次或多次，用于提供当前分块体对应的缓冲区数据。回调函数会收到当前分块体中剩余的字节数（包含当前缓冲区中的字节）。

回调函数必须返回实际消耗的字节数。未被消耗的字节会在后续回调调用中再次提供。该实现通过类型擦除处理回调，且无需动态分配内存，因此回调对象通过非常量引用传递。

回调函数对象的调用签名等效于：
06/18/2026
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Translation changed
[link beast.ref.boost__beast__http__parser.on_chunk_body `on_chunk_body`]
[link beast.ref.boost__beast__http__parser.on_chunk_body `on_chunk_body`]
06/18/2026
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Translation changed
Set a callback to be invoked on each chunk header.

The callback will be invoked once for every chunk in the message payload, as well as once for the last chunk. The invocation happens after the chunk header is available but before any body octets have been parsed.

The extensions are provided in raw, validated form, use [link beast.ref.boost__beast__http__basic_chunk_extensions.parse `chunk_extensions::parse`] to parse the extensions into a structured container for easier access. The implementation type-erases the callback without requiring a dynamic allocation. For this reason, the callback object is passed by a non-constant reference.

The function object will be called with this equivalent signature:
Set a callback to be invoked on each chunk header.

The callback will be invoked once for every chunk in the message payload, as well as once for the last chunk. The invocation happens after the chunk header is available but before any body octets have been parsed.

The extensions are provided in raw, validated form, use [link beast.ref.boost__beast__http__basic_chunk_extensions.parse `chunk_extensions::parse`] to parse the extensions into a structured container for easier access. The implementation type-erases the callback without requiring a dynamic allocation. For this reason, the callback object is passed by a non-constant reference.

The function object will be called with this equivalent signature:设置一个回调函数，在每次解析分块头部时调用。

该回调函数会对消息体中的每个分块调用一次，同时对最后一个分块也调用一次。调用时机在分块头部可用之后、分块体数据开始解析之前。

分块扩展以原始格式提供，且已经过验证。可以使用 [link beast.ref.boost__beast__http__basic_chunk_extensions.parse `chunk_extensions::parse`] 将扩展解析为结构化容器，便于访问。该实现通过类型擦除处理回调，且无需动态分配内存，因此回调对象通过非常量引用传递。

回调函数对象的调用签名等效于：
06/18/2026
User avatar Bstran

Translation changed
[link beast.ref.boost__beast__http__parser.on_chunk_header `on_chunk_header`]
[link beast.ref.boost__beast__http__parser.on_chunk_header `on_chunk_header`]
06/16/2026
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Translation changed
Description
Description描述
158
06/16/2026
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Name
Name名称
158
06/16/2026
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Chunking Parse Callbacks
Chunking Parse Callbacks分块解析回调接口
06/16/2026
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Translation changed
The __parser__ automatically removes the chunked transfer coding when it is the last encoding in the list. However, it also discards the chunk extensions and does not provide a way to determine the boundaries between chunks. Advanced applications which need to access the chunk extensions or read complete individual chunks may use a callback interface provided by __parser__:
The __parser__ automatically removes the chunked transfer coding when it is the last encoding in the list. However, it also discards the chunk extensions and does not provide a way to determine the boundaries between chunks. Advanced applications which need to access the chunk extensions or read complete individual chunks may use a callback interface provided by当分块传输编码位于编码列表的末尾时，__parser__ 会自动将其移除。但在此过程中，解析器会丢弃分块扩展，也不提供确定分块之间边界的方法。对于需要访问分块扩展或读取完整分块的高级应用，可以使用 __parser__: 提供的回调接口：
06/16/2026
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Translation changed
Parsing Chunks
解析分块数据
06/16/2026
User avatar Bstran

Translation changed
Parsing Chunks
Parsing Chunks解析分块数据
06/16/2026

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