include/boost/url/rfc/detail/impl/scheme_rule.hpp

100.0% Lines (14/14) 100.0% Functions (1/1)
include/boost/url/rfc/detail/impl/scheme_rule.hpp
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1 //
2 // Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
3 // Copyright (c) 2023 Alan de Freitas (alandefreitas@gmail.com)
4 //
5 // Distributed under the Boost Software License, Version 1.0. (See accompanying
6 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7 //
8 // Official repository: https://github.com/boostorg/url
9 //
10
11 #ifndef BOOST_URL_RFC_DETAIL_IMPL_SCHEME_RULE_HPP
12 #define BOOST_URL_RFC_DETAIL_IMPL_SCHEME_RULE_HPP
13
14 #include <boost/url/detail/config.hpp>
15 #include <boost/url/grammar/alpha_chars.hpp>
16 #include <boost/url/grammar/charset.hpp>
17 #include <boost/url/grammar/error.hpp>
18 #include <boost/url/grammar/lut_chars.hpp>
19 #include <boost/url/grammar/parse.hpp>
20
21 namespace boost {
22 namespace urls {
23 namespace detail {
24
25 BOOST_URL_CXX20_CONSTEXPR_OR_INLINE
26 auto
27 3753 scheme_rule::
28 parse(
29 char const*& it,
30 char const* end) const noexcept ->
31 system::result<value_type>
32 {
33 3753 auto const start = it;
34 3753 if(it == end)
35 {
36 // end
37 124 BOOST_URL_CONSTEXPR_RETURN_EC(
38 grammar::error::mismatch);
39 }
40 3629 if(! grammar::alpha_chars(*it))
41 {
42 // expected alpha
43 864 BOOST_URL_CONSTEXPR_RETURN_EC(
44 grammar::error::mismatch);
45 }
46
47 constexpr
48 2765 grammar::lut_chars scheme_chars(
49 "0123456789" "+-."
50 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
51 "abcdefghijklmnopqrstuvwxyz");
52 5530 it = grammar::find_if_not(
53 2765 it + 1, end, scheme_chars);
54 2765 value_type t;
55 5530 t.scheme = core::string_view(
56 2765 start, it - start);
57 2765 t.scheme_id = string_to_scheme(
58 t.scheme);
59 2765 return t;
60 }
61
62 } // detail
63 } // urls
64 } // boost
65
66
67 #endif
68