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authority_view::host

Return the host.

Synopsis
template<
    class StringToken = string_token::return_string>
StringToken::result_type
host(
    StringToken&& token = {}) const;
Description

This function returns the host portion of the authority as a string, or the empty string if there is no authority. Any percent-escapes in the string are decoded first.

Example
assert( url_view( "https://www%2droot.example.com/" ).[link url.ref.boost__urls__authority_view.host `host`]() == "www-root.example.com" );
Complexity

Linear in this->host().size().

Exception Safety

Calls to allocate may throw.

BNF
[link url.ref.boost__urls__authority_view.host `host`]        = IP-literal / IPv4address / reg-[link url.ref.boost__urls__host_type `name`]

IP-literal  = "[" ( IPv6address / IPvFuture  ) "]"

reg-[link url.ref.boost__urls__host_type `name`]    = *( unreserved / pct-encoded / "-" / "." )
Specification

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