. /include/boost/url /rfc /detail /fragment_part_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_FRAGMENT_PART_RULE_HPP 11   #ifndef BOOST_URL_RFC_DETAIL_FRAGMENT_PART_RULE_HPP
12   #define BOOST_URL_RFC_DETAIL_FRAGMENT_PART_RULE_HPP 12   #define BOOST_URL_RFC_DETAIL_FRAGMENT_PART_RULE_HPP
13   13  
14   #include <boost/url/rfc/pct_encoded_rule.hpp> 14   #include <boost/url/rfc/pct_encoded_rule.hpp>
15   #include <boost/url/rfc/detail/charsets.hpp> 15   #include <boost/url/rfc/detail/charsets.hpp>
16   #include <boost/url/grammar/parse.hpp> 16   #include <boost/url/grammar/parse.hpp>
17   17  
18   namespace boost { 18   namespace boost {
19   namespace urls { 19   namespace urls {
20   namespace detail { 20   namespace detail {
21   21  
22   /** Rule for fragment-part 22   /** Rule for fragment-part
23   23  
24   @par BNF 24   @par BNF
25   @code 25   @code
26   fragment-part = [ "#" fragment ] 26   fragment-part = [ "#" fragment ]
27   27  
28   fragment = *( pchar / "/" / "?" ) 28   fragment = *( pchar / "/" / "?" )
29   @endcode 29   @endcode
30   30  
31   @par Specification 31   @par Specification
32   @li <a href="https://datatracker.ietf.org/doc/html/rfc3986#section-3.5" 32   @li <a href="https://datatracker.ietf.org/doc/html/rfc3986#section-3.5"
33   >3.5. Fragment (rfc3986)</a> 33   >3.5. Fragment (rfc3986)</a>
34   */ 34   */
35   struct fragment_part_rule_t 35   struct fragment_part_rule_t
36   { 36   {
37   struct value_type 37   struct value_type
38   { 38   {
39   pct_string_view fragment; 39   pct_string_view fragment;
40   bool has_fragment = false; 40   bool has_fragment = false;
41   }; 41   };
42   42  
43   BOOST_URL_CXX14_CONSTEXPR 43   BOOST_URL_CXX14_CONSTEXPR
44   system::result<value_type> 44   system::result<value_type>
HITCBC 45   19757 parse( 45   19761 parse(
46   char const*& it, 46   char const*& it,
47   char const* end 47   char const* end
48   ) const noexcept 48   ) const noexcept
49   { 49   {
HITCBC 50   19757 if( it == end || 50   19761 if( it == end ||
HITCBC 51   12013 *it != '#') 51   12013 *it != '#')
HITCBC 52   18505 return {}; 52   18509 return {};
HITCBC 53   1252 ++it; 53   1252 ++it;
HITCBC 54   1252 auto rv = grammar::parse( 54   1252 auto rv = grammar::parse(
HITCBC 55   1252 it, end, pct_encoded_rule( 55   1252 it, end, pct_encoded_rule(
56   fragment_chars)); 56   fragment_chars));
HITCBC 57   1252 if(! rv) 57   1252 if(! rv)
HITCBC 58   10 return rv.error(); 58   10 return rv.error();
HITCBC 59   1242 value_type t; 59   1242 value_type t;
HITCBC 60   1242 t.fragment = *rv; 60   1242 t.fragment = *rv;
HITCBC 61   1242 t.has_fragment = true; 61   1242 t.has_fragment = true;
HITCBC 62   1242 return t; 62   1242 return t;
63   } 63   }
64   }; 64   };
65   constexpr fragment_part_rule_t fragment_part_rule{}; 65   constexpr fragment_part_rule_t fragment_part_rule{};
66   66  
67   } // detail 67   } // detail
68   } // urls 68   } // urls
69   } // boost 69   } // boost
70   70  
71   #endif 71   #endif