1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/*=============================================================================
Copyright (c) 2001-2014 Joel de Guzman
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
==============================================================================*/
#if !defined(BOOST_SPIRIT_X3_LITERAL_STRING_APR_18_2006_1125PM)
#define BOOST_SPIRIT_X3_LITERAL_STRING_APR_18_2006_1125PM
#if defined(_MSC_VER)
#pragma once
#endif
#include <boost/spirit/home/x3/core/parser.hpp>
#include <boost/spirit/home/x3/core/skip_over.hpp>
#include <boost/spirit/home/x3/string/detail/string_parse.hpp>
#include <boost/spirit/home/x3/support/utility/utf8.hpp>
#include <boost/spirit/home/support/char_encoding/ascii.hpp>
#include <boost/spirit/home/support/char_encoding/standard.hpp>
#include <boost/spirit/home/support/char_encoding/standard_wide.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/type_traits/add_reference.hpp>
#include <string>
namespace boost { namespace spirit { namespace x3
{
template <typename String, typename Encoding,
typename Attribute = std::basic_string<typename Encoding::char_type>>
struct literal_string : parser<literal_string<String, Encoding, Attribute>>
{
typedef typename Encoding::char_type char_type;
typedef Encoding encoding;
typedef Attribute attribute_type;
static bool const has_attribute =
!is_same<unused_type, attribute_type>::value;
static bool const handles_container = has_attribute;
literal_string(typename add_reference<String>::type str)
: str(str)
{}
template <typename Iterator, typename Context, typename Attribute_>
bool parse(Iterator& first, Iterator const& last
, Context const& context, unused_type, Attribute_& attr) const
{
x3::skip_over(first, last, context);
return detail::string_parse(str, first, last, attr);
}
String str;
};
namespace standard
{
inline literal_string<char const*, char_encoding::standard>
string(char const* s)
{
return literal_string<char const*, char_encoding::standard>(s);
}
}
using standard::string;
namespace extension
{
template <int N>
struct as_parser<char[N]>
{
typedef
literal_string<
char const*, char_encoding::standard, unused_type>
type;
typedef type value_type;
static type call(char const* s)
{
return type(s);
}
};
template <int N>
struct as_parser<char const[N]> : as_parser<char[N]> {};
template <int N>
struct as_parser<wchar_t[N]>
{
typedef
literal_string<
wchar_t const*, char_encoding::standard_wide, unused_type>
type;
typedef type value_type;
static type call(wchar_t const* s)
{
return type(s);
}
};
template <int N>
struct as_parser<wchar_t const[N]> : as_parser<wchar_t[N]> {};
}
using standard::string;
inline literal_string<char const*, char_encoding::standard, unused_type>
lit(char const* s)
{
return literal_string<char const*, char_encoding::standard, unused_type>(s);
}
template <typename String, typename Encoding, typename Attribute>
struct get_info<literal_string<String, Encoding, Attribute>>
{
typedef std::string result_type;
std::string operator()(literal_string<String, Encoding, Attribute> const& p) const
{
return '"' + to_utf8(p.str) + '"';
}
};
}}}
#endif
|
