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### async_read_until

The `async_read_until` function is a composed asynchronous operation that reads data into a dynamic buffer sequence, or into a streambuf, until it contains a delimiter, matches a regular expression, or a function object indicates a match.

Start an asynchronous operation to read data into a dynamic buffer sequence until it contains a specified delimiter.

    template<
        typename AsyncReadStream,
        typename DynamicBuffer_v1,
        typename ReadHandler>
    DEDUCED async_read_until(
        AsyncReadStream & s,
        DynamicBuffer_v1 && buffers,
        char delim,
        ReadHandler && handler,
        typename enable_if< is_dynamic_buffer_v1< typename decay< DynamicBuffer_v1 >::type >::value &&!is_dynamic_buffer_v2< typename decay< DynamicBuffer_v1 >::type >::value >::type *  = 0);
      » more...

    template<
        typename AsyncReadStream,
        typename DynamicBuffer_v1,
        typename ReadHandler>
    DEDUCED async_read_until(
        AsyncReadStream & s,
        DynamicBuffer_v1 && buffers,
        string_view delim,
        ReadHandler && handler,
        typename enable_if< is_dynamic_buffer_v1< typename decay< DynamicBuffer_v1 >::type >::value &&!is_dynamic_buffer_v2< typename decay< DynamicBuffer_v1 >::type >::value >::type *  = 0);
      » more...

Start an asynchronous operation to read data into a dynamic buffer sequence until some part of its data matches a regular expression.

    template<
        typename AsyncReadStream,
        typename DynamicBuffer_v1,
        typename ReadHandler>
    DEDUCED async_read_until(
        AsyncReadStream & s,
        DynamicBuffer_v1 && buffers,
        const boost::regex & expr,
        ReadHandler && handler,
        typename enable_if< is_dynamic_buffer_v1< typename decay< DynamicBuffer_v1 >::type >::value &&!is_dynamic_buffer_v2< typename decay< DynamicBuffer_v1 >::type >::value >::type *  = 0);
      » more...

Start an asynchronous operation to read data into a dynamic buffer sequence until a function object indicates a match.

    template<
        typename AsyncReadStream,
        typename DynamicBuffer_v1,
        typename MatchCondition,
        typename ReadHandler>
    DEDUCED async_read_until(
        AsyncReadStream & s,
        DynamicBuffer_v1 && buffers,
        MatchCondition match_condition,
        ReadHandler && handler,
        typename enable_if< is_match_condition< MatchCondition >::value &&is_dynamic_buffer_v1< typename decay< DynamicBuffer_v1 >::type >::value &&!is_dynamic_buffer_v2< typename decay< DynamicBuffer_v1 >::type >::value >::type *  = 0);
      » more...

Start an asynchronous operation to read data into a streambuf until it contains a specified delimiter.

    template<
        typename AsyncReadStream,
        typename Allocator,
        typename ReadHandler>
    DEDUCED async_read_until(
        AsyncReadStream & s,
        boost::asio::basic_streambuf< Allocator > & b,
        char delim,
        ReadHandler && handler);
      » more...

    template<
        typename AsyncReadStream,
        typename Allocator,
        typename ReadHandler>
    DEDUCED async_read_until(
        AsyncReadStream & s,
        boost::asio::basic_streambuf< Allocator > & b,
        string_view delim,
        ReadHandler && handler);
      » more...

Start an asynchronous operation to read data into a streambuf until some part of its data matches a regular expression.

    template<
        typename AsyncReadStream,
        typename Allocator,
        typename ReadHandler>
    DEDUCED async_read_until(
        AsyncReadStream & s,
        boost::asio::basic_streambuf< Allocator > & b,
        const boost::regex & expr,
        ReadHandler && handler);
      » more...

Start an asynchronous operation to read data into a streambuf until a function object indicates a match.

    template<
        typename AsyncReadStream,
        typename Allocator,
        typename MatchCondition,
        typename ReadHandler>
    DEDUCED async_read_until(
        AsyncReadStream & s,
        boost::asio::basic_streambuf< Allocator > & b,
        MatchCondition match_condition,
        ReadHandler && handler,
        typename enable_if< is_match_condition< MatchCondition >::value >::type *  = 0);
      » more...

Start an asynchronous operation to read data into a dynamic buffer sequence until it contains a specified delimiter.

    template<
        typename AsyncReadStream,
        typename DynamicBuffer_v2,
        typename ReadHandler>
    DEDUCED async_read_until(
        AsyncReadStream & s,
        DynamicBuffer_v2 buffers,
        char delim,
        ReadHandler && handler,
        typename enable_if< is_dynamic_buffer_v2< DynamicBuffer_v2 >::value >::type *  = 0);
      » more...

    template<
        typename AsyncReadStream,
        typename DynamicBuffer_v2,
        typename ReadHandler>
    DEDUCED async_read_until(
        AsyncReadStream & s,
        DynamicBuffer_v2 buffers,
        string_view delim,
        ReadHandler && handler,
        typename enable_if< is_dynamic_buffer_v2< DynamicBuffer_v2 >::value >::type *  = 0);
      » more...

Start an asynchronous operation to read data into a dynamic buffer sequence until some part of its data matches a regular expression.

    template<
        typename AsyncReadStream,
        typename DynamicBuffer_v2,
        typename ReadHandler>
    DEDUCED async_read_until(
        AsyncReadStream & s,
        DynamicBuffer_v2 buffers,
        const boost::regex & expr,
        ReadHandler && handler,
        typename enable_if< is_dynamic_buffer_v2< DynamicBuffer_v2 >::value >::type *  = 0);
      » more...

Start an asynchronous operation to read data into a dynamic buffer sequence until a function object indicates a match.

    template<
        typename AsyncReadStream,
        typename DynamicBuffer_v2,
        typename MatchCondition,
        typename ReadHandler>
    DEDUCED async_read_until(
        AsyncReadStream & s,
        DynamicBuffer_v2 buffers,
        MatchCondition match_condition,
        ReadHandler && handler,
        typename enable_if< is_match_condition< MatchCondition >::value &&is_dynamic_buffer_v2< DynamicBuffer_v2 >::value >::type *  = 0);
      » more...

##### Requirements

Header: `boost/asio/read_until.hpp`

Convenience header: `boost/asio.hpp`