56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
//
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// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// Official repository: https://github.com/boostorg/url
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//
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#ifndef BOOST_URL_RFC_DETAIL_REG_NAME_RULE_HPP
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#define BOOST_URL_RFC_DETAIL_REG_NAME_RULE_HPP
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#include <boost/url/detail/config.hpp>
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#include <boost/url/rfc/pct_encoded_rule.hpp>
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#include <boost/url/rfc/sub_delim_chars.hpp>
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#include <boost/url/rfc/unreserved_chars.hpp>
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namespace boost {
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namespace urls {
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namespace detail {
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/* VFALCO In theory we could enforce these
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additional requirements from errata 4942:
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Such a name consists of a sequence of domain
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labels separated by ".", each domain label
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starting and ending with an alphanumeric character
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and possibly also containing "-" characters. The
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rightmost domain label of a fully qualified domain
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name in DNS may be followed by a single "." and
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should be if it is necessary to distinguish between
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the complete domain name and some local domain.
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*/
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/** Rule for reg-name
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@par BNF
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@code
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reg-name = *( unreserved / pct-encoded / "-" / ".")
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@endcode
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@par Specification
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@li <a href="https://datatracker.ietf.org/doc/html/rfc3986#section-3.2.2"
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>3.2.2. Host (rfc3986)</a>
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@li <a href="https://www.rfc-editor.org/errata/eid4942"
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>Errata ID: 4942</a>
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*/
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constexpr auto reg_name_rule =
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pct_encoded_rule(unreserved_chars + sub_delim_chars);
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} // detail
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} // urls
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} // boost
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#endif
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