1 /*=============================================================================
2     Copyright (c) 2001-2014 Joel de Guzman
3 
4     Distributed under the Boost Software License, Version 1.0. (See accompanying
5     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6 ==============================================================================*/
7 #if !defined(BOOST_SPIRIT_X3_CHAR_APRIL_16_2006_1051AM)
8 #define BOOST_SPIRIT_X3_CHAR_APRIL_16_2006_1051AM
9 
10 #include <boost/spirit/home/x3/char/any_char.hpp>
11 #include <boost/spirit/home/support/char_encoding/ascii.hpp>
12 #include <boost/spirit/home/support/char_encoding/iso8859_1.hpp>
13 #include <boost/spirit/home/support/char_encoding/standard.hpp>
14 #include <boost/spirit/home/support/char_encoding/standard_wide.hpp>
15 
16 namespace boost { namespace spirit { namespace x3
17 {
18     namespace standard
19     {
20         typedef any_char<char_encoding::standard> char_type;
21         constexpr auto char_ = char_type{};
22 
23         constexpr literal_char<char_encoding::standard, unused_type>
lit(char ch)24         lit(char ch)
25         {
26             return { ch };
27         }
28 
29         constexpr literal_char<char_encoding::standard, unused_type>
lit(wchar_t ch)30         lit(wchar_t ch)
31         {
32             return { ch };
33         }
34 
35     }
36 
37     using standard::char_type;
38     using standard::char_;
39     using standard::lit;
40 
41 #ifndef BOOST_SPIRIT_NO_STANDARD_WIDE
42     namespace standard_wide
43     {
44         typedef any_char<char_encoding::standard_wide> char_type;
45         constexpr auto char_ = char_type{};
46 
47         constexpr literal_char<char_encoding::standard_wide, unused_type>
lit(wchar_t ch)48         lit(wchar_t ch)
49         {
50             return { ch };
51         }
52     }
53 #endif
54 
55     namespace ascii
56     {
57         typedef any_char<char_encoding::ascii> char_type;
58         constexpr auto char_ = char_type{};
59 
60         constexpr literal_char<char_encoding::ascii, unused_type>
lit(char ch)61         lit(char ch)
62         {
63             return { ch };
64         }
65 
66         constexpr literal_char<char_encoding::ascii, unused_type>
lit(wchar_t ch)67         lit(wchar_t ch)
68         {
69             return { ch };
70         }
71     }
72 
73     namespace iso8859_1
74     {
75         typedef any_char<char_encoding::iso8859_1> char_type;
76         constexpr auto char_ = char_type{};
77 
78         constexpr literal_char<char_encoding::iso8859_1, unused_type>
lit(char ch)79         lit(char ch)
80         {
81             return { ch };
82         }
83 
84         constexpr literal_char<char_encoding::iso8859_1, unused_type>
lit(wchar_t ch)85         lit(wchar_t ch)
86         {
87             return { ch };
88         }
89     }
90 
91     namespace extension
92     {
93         template <>
94         struct as_parser<char>
95         {
96             typedef literal_char<
97                 char_encoding::standard, unused_type>
98             type;
99 
100             typedef type value_type;
101 
callboost::spirit::x3::extension::as_parser102             static constexpr type call(char ch)
103             {
104                 return { ch };
105             }
106         };
107 
108 #ifndef BOOST_SPIRIT_NO_STANDARD_WIDE
109         template <>
110         struct as_parser<wchar_t>
111         {
112             typedef literal_char<
113                 char_encoding::standard_wide, unused_type>
114             type;
115 
116             typedef type value_type;
117 
callboost::spirit::x3::extension::as_parser118             static constexpr type call(wchar_t ch)
119             {
120                 return { ch };
121             }
122         };
123 #endif
124 
125         template <>
126         struct as_parser<char [2]>
127         {
128             typedef literal_char<
129                 char_encoding::standard, unused_type>
130             type;
131 
132             typedef type value_type;
133 
callboost::spirit::x3::extension::as_parser134             static constexpr type call(char const ch[])
135             {
136                 return { ch[0] };
137             }
138         };
139 
140 #ifndef BOOST_SPIRIT_NO_STANDARD_WIDE
141         template <>
142         struct as_parser<wchar_t [2]>
143         {
144             typedef literal_char<
145                 char_encoding::standard_wide, unused_type>
146             type;
147 
148             typedef type value_type;
149 
callboost::spirit::x3::extension::as_parser150             static constexpr type call(wchar_t const ch[] )
151             {
152                 return { ch[0] };
153             }
154         };
155 #endif
156 
157     }
158 
159 }}}
160 
161 #endif
162