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_CLASS_APRIL_16_2006_1051AM)
8#define BOOST_SPIRIT_X3_CHAR_CLASS_APRIL_16_2006_1051AM
9
10#include <boost/spirit/home/x3/char/char_parser.hpp>
11#include <boost/spirit/home/x3/char/detail/cast_char.hpp>
12#include <boost/spirit/home/support/char_encoding/standard.hpp>
13#include <boost/spirit/home/support/char_encoding/standard_wide.hpp>
14#include <boost/spirit/home/support/char_encoding/ascii.hpp>
15#include <boost/spirit/home/support/char_encoding/iso8859_1.hpp>
16#include <boost/spirit/home/x3/char/char_class_tags.hpp>
17namespace boost { namespace spirit { namespace x3
18{
19 ///////////////////////////////////////////////////////////////////////////
20 template <typename Encoding>
21 struct char_class_base
22 {
23 typedef typename Encoding::classify_type char_type;
24
25#define BOOST_SPIRIT_X3_CLASSIFY(name) \
26 template <typename Char> \
27 static bool \
28 is(name##_tag, Char ch) \
29 { \
30 return Encoding::is##name \
31 BOOST_PREVENT_MACRO_SUBSTITUTION \
32 (detail::cast_char<char_type>(ch)); \
33 } \
34 /***/
35
36 BOOST_SPIRIT_X3_CLASSIFY(char)
37 BOOST_SPIRIT_X3_CLASSIFY(alnum)
38 BOOST_SPIRIT_X3_CLASSIFY(alpha)
39 BOOST_SPIRIT_X3_CLASSIFY(digit)
40 BOOST_SPIRIT_X3_CLASSIFY(xdigit)
41 BOOST_SPIRIT_X3_CLASSIFY(cntrl)
42 BOOST_SPIRIT_X3_CLASSIFY(graph)
43 BOOST_SPIRIT_X3_CLASSIFY(lower)
44 BOOST_SPIRIT_X3_CLASSIFY(print)
45 BOOST_SPIRIT_X3_CLASSIFY(punct)
46 BOOST_SPIRIT_X3_CLASSIFY(space)
47 BOOST_SPIRIT_X3_CLASSIFY(blank)
48 BOOST_SPIRIT_X3_CLASSIFY(upper)
49
50#undef BOOST_SPIRIT_X3_CLASSIFY
51 };
52
53 template <typename Encoding, typename Tag>
54 struct char_class
55 : char_parser<char_class<Encoding, Tag>>
56 {
57 typedef Encoding encoding;
58 typedef Tag tag;
59 typedef typename Encoding::char_type char_type;
60 typedef char_type attribute_type;
61 static bool const has_attribute = true;
62
63 template <typename Char, typename Context>
64 bool test(Char ch, Context const& context) const
65 {
66 return encoding::ischar(ch)
67 && char_class_base<Encoding>::is(
68 get_case_compare<Encoding>(context).get_char_class_tag(tag()), ch);
69 }
70 };
71
72#define BOOST_SPIRIT_X3_CHAR_CLASS(encoding, name) \
73 typedef char_class<char_encoding::encoding, name##_tag> name##_type; \
74 constexpr name##_type name = name##_type(); \
75 /***/
76
77#define BOOST_SPIRIT_X3_CHAR_CLASSES(encoding) \
78 namespace encoding \
79 { \
80 BOOST_SPIRIT_X3_CHAR_CLASS(encoding, alnum) \
81 BOOST_SPIRIT_X3_CHAR_CLASS(encoding, alpha) \
82 BOOST_SPIRIT_X3_CHAR_CLASS(encoding, digit) \
83 BOOST_SPIRIT_X3_CHAR_CLASS(encoding, xdigit) \
84 BOOST_SPIRIT_X3_CHAR_CLASS(encoding, cntrl) \
85 BOOST_SPIRIT_X3_CHAR_CLASS(encoding, graph) \
86 BOOST_SPIRIT_X3_CHAR_CLASS(encoding, lower) \
87 BOOST_SPIRIT_X3_CHAR_CLASS(encoding, print) \
88 BOOST_SPIRIT_X3_CHAR_CLASS(encoding, punct) \
89 BOOST_SPIRIT_X3_CHAR_CLASS(encoding, space) \
90 BOOST_SPIRIT_X3_CHAR_CLASS(encoding, blank) \
91 BOOST_SPIRIT_X3_CHAR_CLASS(encoding, upper) \
92 } \
93 /***/
94
95 BOOST_SPIRIT_X3_CHAR_CLASSES(standard)
96#ifndef BOOST_SPIRIT_NO_STANDARD_WIDE
97 BOOST_SPIRIT_X3_CHAR_CLASSES(standard_wide)
98#endif
99 BOOST_SPIRIT_X3_CHAR_CLASSES(ascii)
100 BOOST_SPIRIT_X3_CHAR_CLASSES(iso8859_1)
101
102#undef BOOST_SPIRIT_X3_CHAR_CLASS
103#undef BOOST_SPIRIT_X3_CHAR_CLASSES
104
105 using standard::alnum_type;
106 using standard::alpha_type;
107 using standard::digit_type;
108 using standard::xdigit_type;
109 using standard::cntrl_type;
110 using standard::graph_type;
111 using standard::lower_type;
112 using standard::print_type;
113 using standard::punct_type;
114 using standard::space_type;
115 using standard::blank_type;
116 using standard::upper_type;
117
118 using standard::alnum;
119 using standard::alpha;
120 using standard::digit;
121 using standard::xdigit;
122 using standard::cntrl;
123 using standard::graph;
124 using standard::lower;
125 using standard::print;
126 using standard::punct;
127 using standard::space;
128 using standard::blank;
129 using standard::upper;
130}}}
131
132#endif
133

source code of boost/libs/spirit/include/boost/spirit/home/x3/char/char_class.hpp