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1// Copyright (c) 2014-2017 Dr. Colin Hirsch and Daniel Frey
2// Please see LICENSE for license or visit https://github.com/taocpp/PEGTL/
3
4#ifndef TAOCPP_PEGTL_INCLUDE_INTERNAL_REP_HPP
5#define TAOCPP_PEGTL_INCLUDE_INTERNAL_REP_HPP
6
7#include "../config.hpp"
8
9#include "rule_conjunction.hpp"
10#include "skip_control.hpp"
11#include "trivial.hpp"
12
13#include "../apply_mode.hpp"
14#include "../rewind_mode.hpp"
15
16#include "../analysis/counted.hpp"
17
18namespace tao
19{
20 namespace TAOCPP_PEGTL_NAMESPACE
21 {
22 namespace internal
23 {
24 template< unsigned Num, typename... Rules >
25 struct rep;
26
27 template< unsigned Num >
28 struct rep< Num >
29 : trivial< true >
30 {
31 };
32
33 template< typename Rule, typename... Rules >
34 struct rep< 0, Rule, Rules... >
35 : trivial< true >
36 {
37 };
38
39 template< unsigned Num, typename... Rules >
40 struct rep
41 {
42 using analyze_t = analysis::counted< analysis::rule_type::SEQ, Num, Rules... >;
43
44 template< apply_mode A,
45 rewind_mode M,
46 template< typename... > class Action,
47 template< typename... > class Control,
48 typename Input,
49 typename... States >
50 static bool match( Input& in, States&&... st )
51 {
52 auto m = in.template mark< M >();
53 using m_t = decltype( m );
54
55 for( unsigned i = 0; i != Num; ++i ) {
56 if( !rule_conjunction< Rules... >::template match< A, m_t::next_rewind_mode, Action, Control >( in, st... ) ) {
57 return false;
58 }
59 }
60 return m( true );
61 }
62 };
63
64 template< unsigned Num, typename... Rules >
65 struct skip_control< rep< Num, Rules... > > : std::true_type
66 {
67 };
68
69 } // namespace internal
70
71 } // namespace TAOCPP_PEGTL_NAMESPACE
72
73} // namespace tao
74
75#endif