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//
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//
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// Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
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// Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
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// Copyright (c) 2022 Alan de Freitas (alandefreitas@gmail.com)
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// Copyright (c) 2022 Alan de Freitas (alandefreitas@gmail.com)
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//
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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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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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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//
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// Official repository: https://github.com/CPPAlliance/url
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// Official repository: https://github.com/CPPAlliance/url
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//
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//
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#include <boost/url/detail/config.hpp>
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#include <boost/url/detail/config.hpp>
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#include <boost/url/parse_query.hpp>
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#include <boost/url/parse_query.hpp>
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#include <boost/url/rfc/query_rule.hpp>
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#include <boost/url/rfc/query_rule.hpp>
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#include <boost/url/grammar/parse.hpp>
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#include <boost/url/grammar/parse.hpp>
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#include <boost/url/error.hpp>
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#include <boost/url/error.hpp>
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namespace boost {
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namespace boost {
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namespace urls {
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namespace urls {
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system::result<params_encoded_view>
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system::result<params_encoded_view>
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parse_query(core::string_view s) noexcept
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parse_query(core::string_view s) noexcept
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{
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{
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    // Handle empty strings differently.
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    // Handle empty strings differently.
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    // We produce {}, versus empty but
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    // We produce {}, versus empty but
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    // present query in URL (e.g. "http:?")
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    // present query in URL (e.g. "http:?")
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    // which produces {{"", none}}.
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    // which produces {{"", none}}.
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    if(s.empty())
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    if(s.empty())
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    {
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    {
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        // default-constructed string_view can return a null data pointer;
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        // default-constructed string_view can return a null data pointer;
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        // query_ref expects a valid pointer even when the buffer is empty.
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        // query_ref expects a valid pointer even when the buffer is empty.
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        auto const* data = s.data();
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        auto const* data = s.data();
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        core::string_view empty(data ? data : "", 0);
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        core::string_view empty(data ? data : "", 0);
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        return params_encoded_view(
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        return params_encoded_view(
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            detail::query_ref(
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            detail::query_ref(
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                empty, 0, 0));
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                empty, 0, 0));
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    }
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    }
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    auto rv = grammar::parse(s, query_rule);
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    auto rv = grammar::parse(s, query_rule);
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    if(! rv)
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    if(! rv)
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        return rv.error();
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        return rv.error();
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    return params_encoded_view(
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    return params_encoded_view(
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        detail::query_ref(
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        detail::query_ref(
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            s, s.size(), rv->size()));
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            s, s.size(), rv->size()));
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}
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}
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} // urls
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} // urls
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} // boost
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} // boost