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//
 
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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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#include <boost/url/detail/config.hpp>
 
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#include <boost/url/rfc/uri_rule.hpp>
 
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#include <boost/url/rfc/query_rule.hpp>
 
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#include "detail/fragment_part_rule.hpp"
 
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#include "detail/hier_part_rule.hpp"
 
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#include "detail/query_part_rule.hpp"
 
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#include "detail/scheme_rule.hpp"
 
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#include <boost/url/grammar/delim_rule.hpp>
 
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#include <boost/url/grammar/tuple_rule.hpp>
 
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#include <boost/url/grammar/optional_rule.hpp>
 
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#include <boost/url/grammar/parse.hpp>
 
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namespace boost {
 
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namespace urls {
 
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auto
 
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implementation_defined::uri_rule_t::
 
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parse(
 
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    char const*& it,
 
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    char const* const end
 
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        ) const noexcept ->
 
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    system::result<value_type>
 
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{
 
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    detail::url_impl u(detail::url_impl::from::string);
 
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    u.cs_ = it;
 
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    // scheme
 
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    {
 
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        auto rv = grammar::parse(
 
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            it, end,
 
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            grammar::tuple_rule(
 
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                detail::scheme_rule(),
 
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                grammar::squelch(
 
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                    grammar::delim_rule(':'))));
 
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        if(! rv)
 
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            return rv.error();
 
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        u.apply_scheme(rv->scheme);
 
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    }
 
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    // hier_part
 
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    {
 
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        auto rv = grammar::parse(
 
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            it, end,
 
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            detail::hier_part_rule);
 
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        if(! rv)
 
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            return rv.error();
 
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        if(rv->has_authority)
 
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            u.apply_authority(rv->authority);
 
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        u.apply_path(
 
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            rv->path,
 
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            rv->segment_count);
 
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    }
 
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    // [ "?" query ]
 
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    {
 
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        auto rv = grammar::parse(
 
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            it, end, detail::query_part_rule);
 
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        if(! rv)
 
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            return rv.error();
 
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        if(rv->has_query)
 
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        {
 
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            // map "?" to { {} }
 
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            u.apply_query(
 
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                rv->query,
 
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                rv->count);
 
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        }
 
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    }
 
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    // [ "#" fragment ]
 
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    {
 
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        auto rv = grammar::parse(
 
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            it, end, detail::fragment_part_rule);
 
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        if(! rv)
 
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            return rv.error();
 
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        if(rv->has_fragment)
 
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            u.apply_frag(rv->fragment);
 
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    }
 
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    return u.construct();
 
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}
 
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} // urls
 
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} // boost
 
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