RESTinio
user-agent.hpp
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1 /*
2  * RESTinio
3  */
4 
12 #pragma once
13 
15 
16 #include <restinio/variant.hpp>
17 
18 namespace restinio
19 {
20 
21 namespace http_field_parsers
22 {
23 
24 //
25 // user_agent_value_t
26 //
42 {
48  struct product_t
49  {
50  std::string product;
52  };
53 
60 
62  std::vector< tail_item_t > tail;
63 
70  static auto
72  {
73  auto product_producer = produce< product_t >(
75  maybe(
76  symbol('/'),
78  )
79  );
80 
81  return produce< user_agent_value_t >(
82  product_producer >> &user_agent_value_t::product,
83  produce< std::vector< tail_item_t > >(
84  repeat( 0, N,
85  space(),
86  ows(),
88  product_producer >> to_container(),
89  comment_p() >> to_container()
90  )
91  )
93  );
94  }
95 
104  {
106  }
107 };
108 
109 } /* namespace http_field_parsers */
110 
111 } /* namespace restinio */
112 
RESTINIO_NODISCARD
#define RESTINIO_NODISCARD
Definition: compiler_features.hpp:33
restinio::easy_parser::symbol
RESTINIO_NODISCARD auto symbol(char expected) noexcept
A factory function to create a clause that expects the speficied symbol, extracts it and then skips i...
Definition: easy_parser.hpp:4032
restinio::easy_parser::produce
RESTINIO_NODISCARD auto produce(Clauses &&... clauses)
A factory function to create a producer that creates an instance of the target type by using specifie...
Definition: easy_parser.hpp:3554
restinio::http_field_parsers::token_p
RESTINIO_NODISCARD auto token_p() noexcept
A factory function to create a token_producer.
Definition: basics.hpp:985
restinio::http_field_parsers::user_agent_value_t::try_parse
static RESTINIO_NODISCARD expected_t< user_agent_value_t, restinio::easy_parser::parse_error_t > try_parse(string_view_t what)
An attempt to parse User-Agent HTTP-field.
Definition: user-agent.hpp:103
restinio::easy_parser::N
constexpr std::size_t N
A special marker that means infinite repetitions.
Definition: easy_parser.hpp:455
restinio::http_field_parsers::comment_p
RESTINIO_NODISCARD auto comment_p()
A factory for producer of comment token.
Definition: basics.hpp:880
restinio::string_view_t
nonstd::string_view string_view_t
Definition: string_view.hpp:19
restinio::http_field_parsers::ows
RESTINIO_NODISCARD auto ows() noexcept
A factory function to create an OWS clause.
Definition: basics.hpp:939
restinio::http_field_parsers::user_agent_value_t::product_t::product
std::string product
Definition: user-agent.hpp:50
restinio::http_field_parsers::user_agent_value_t::product_t
A type for holding an info about a product.
Definition: user-agent.hpp:49
restinio::easy_parser::try_parse
RESTINIO_NODISCARD expected_t< typename Producer::result_type, parse_error_t > try_parse(string_view_t from, Producer producer)
Perform the parsing of the specified content by using specified value producer.
Definition: easy_parser.hpp:5042
nonstd::optional_lite::optional
class optional
Definition: optional.hpp:839
restinio::expected_t
nonstd::expected< T, E > expected_t
Definition: expected.hpp:22
basics.hpp
Utilities for parsing values of http-fields.
restinio::http_field_parsers::user_agent_value_t::product_t::product_version
restinio::optional_t< std::string > product_version
Definition: user-agent.hpp:51
restinio::easy_parser::to_container
RESTINIO_NODISCARD auto to_container()
A factory function to create a to_container_consumer.
Definition: easy_parser.hpp:4583
restinio::http_field_parsers::user_agent_value_t
Tools for working with the value of User-Agent HTTP-field.
Definition: user-agent.hpp:42
restinio
Definition: asio_include.hpp:21
restinio::http_field_parsers::user_agent_value_t::product
product_t product
Definition: user-agent.hpp:61
restinio::http_field_parsers::user_agent_value_t::make_parser
static RESTINIO_NODISCARD auto make_parser()
A factory function for a parser of User-Agent value.
Definition: user-agent.hpp:71
restinio::easy_parser::space
RESTINIO_NODISCARD auto space() noexcept
A factory function to create a clause that expects a space, extracts it and then skips it.
Definition: easy_parser.hpp:4115
restinio::http_field_parsers::user_agent_value_t::tail
std::vector< tail_item_t > tail
Definition: user-agent.hpp:62
restinio::easy_parser::alternatives
RESTINIO_NODISCARD auto alternatives(Clauses &&... clauses)
A factory function to create an alternatives clause.
Definition: easy_parser.hpp:3595
variant.hpp
nonstd::variants::variant
Definition: variant.hpp:1209
restinio::easy_parser::repeat
RESTINIO_NODISCARD auto repeat(std::size_t min_occurences, std::size_t max_occurences, Clauses &&... clauses)
A factory function to create repetitor of subclauses.
Definition: easy_parser.hpp:3876
restinio::easy_parser::maybe
RESTINIO_NODISCARD auto maybe(Clauses &&... clauses)
A factory function to create an optional clause.
Definition: easy_parser.hpp:3634