. /include/boost/url /rfc /detail /impl /scheme_rule.hpp
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1   // 1   //
2   // Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com) 2   // Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
3   // Copyright (c) 2023 Alan de Freitas (alandefreitas@gmail.com) 3   // Copyright (c) 2023 Alan de Freitas (alandefreitas@gmail.com)
4   // 4   //
5   // Distributed under the Boost Software License, Version 1.0. (See accompanying 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) 6   // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7   // 7   //
8   // Official repository: https://github.com/boostorg/url 8   // Official repository: https://github.com/boostorg/url
9   // 9   //
10   10  
11   #ifndef BOOST_URL_RFC_DETAIL_IMPL_SCHEME_RULE_HPP 11   #ifndef BOOST_URL_RFC_DETAIL_IMPL_SCHEME_RULE_HPP
12   #define BOOST_URL_RFC_DETAIL_IMPL_SCHEME_RULE_HPP 12   #define BOOST_URL_RFC_DETAIL_IMPL_SCHEME_RULE_HPP
13   13  
14   #include <boost/url/detail/config.hpp> 14   #include <boost/url/detail/config.hpp>
15   #include <boost/url/grammar/alpha_chars.hpp> 15   #include <boost/url/grammar/alpha_chars.hpp>
16   #include <boost/url/grammar/charset.hpp> 16   #include <boost/url/grammar/charset.hpp>
17   #include <boost/url/grammar/error.hpp> 17   #include <boost/url/grammar/error.hpp>
18   #include <boost/url/grammar/lut_chars.hpp> 18   #include <boost/url/grammar/lut_chars.hpp>
19   #include <boost/url/grammar/parse.hpp> 19   #include <boost/url/grammar/parse.hpp>
20   20  
21   namespace boost { 21   namespace boost {
22   namespace urls { 22   namespace urls {
23   namespace detail { 23   namespace detail {
24   24  
25   BOOST_URL_CXX20_CONSTEXPR_OR_INLINE 25   BOOST_URL_CXX20_CONSTEXPR_OR_INLINE
26   auto 26   auto
HITCBC 27   20689 scheme_rule:: 27   20693 scheme_rule::
28   parse( 28   parse(
29   char const*& it, 29   char const*& it,
30   char const* end) const noexcept -> 30   char const* end) const noexcept ->
31   system::result<value_type> 31   system::result<value_type>
32   { 32   {
HITCBC 33   20689 auto const start = it; 33   20693 auto const start = it;
HITCBC 34   20689 if(it == end) 34   20693 if(it == end)
35   { 35   {
36   // end 36   // end
HITCBC 37   152 BOOST_URL_CONSTEXPR_RETURN_EC( 37   152 BOOST_URL_CONSTEXPR_RETURN_EC(
38   grammar::error::mismatch); 38   grammar::error::mismatch);
39   } 39   }
HITCBC 40   20537 if(! grammar::alpha_chars(*it)) 40   20541 if(! grammar::alpha_chars(*it))
41   { 41   {
42   // expected alpha 42   // expected alpha
HITCBC 43   6443 BOOST_URL_CONSTEXPR_RETURN_EC( 43   6447 BOOST_URL_CONSTEXPR_RETURN_EC(
44   grammar::error::mismatch); 44   grammar::error::mismatch);
45   } 45   }
46   46  
47   constexpr 47   constexpr
HITCBC 48   14094 grammar::lut_chars scheme_chars( 48   14094 grammar::lut_chars scheme_chars(
49   "0123456789" "+-." 49   "0123456789" "+-."
50   "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 50   "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
51   "abcdefghijklmnopqrstuvwxyz"); 51   "abcdefghijklmnopqrstuvwxyz");
HITCBC 52   28188 it = grammar::find_if_not( 52   28188 it = grammar::find_if_not(
HITCBC 53   14094 it + 1, end, scheme_chars); 53   14094 it + 1, end, scheme_chars);
HITCBC 54   14094 value_type t; 54   14094 value_type t;
HITCBC 55   28188 t.scheme = core::string_view( 55   28188 t.scheme = core::string_view(
HITCBC 56   14094 start, it - start); 56   14094 start, it - start);
HITCBC 57   14094 t.scheme_id = string_to_scheme( 57   14094 t.scheme_id = string_to_scheme(
58   t.scheme); 58   t.scheme);
HITCBC 59   14094 return t; 59   14094 return t;
60   } 60   }
61   61  
62   } // detail 62   } // detail
63   } // urls 63   } // urls
64   } // boost 64   } // boost
65   65  
66   66  
67   #endif 67   #endif