summaryrefslogtreecommitdiff
path: root/boost/spirit/home/classic/core/primitives/impl/primitives.ipp
blob: cd92154bbf441cb7e5312fd7ed84b54ec3e5e9d5 (plain)
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
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
/*=============================================================================
    Copyright (c) 1998-2003 Joel de Guzman
    Copyright (c) 2003 Martin Wille
    http://spirit.sourceforge.net/

    Use, modification and distribution is subject to 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_PRIMITIVES_IPP)
#define BOOST_SPIRIT_PRIMITIVES_IPP

#include <cctype>
#if !defined(BOOST_NO_CWCTYPE)
#include <cwctype>
#endif

#include <string> // char_traits

#if defined(BOOST_MSVC)
#  pragma warning (push)
#  pragma warning(disable:4800)
#endif

namespace boost { namespace spirit {

BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN

    template <typename DrivedT> struct char_parser;

    namespace impl
    {
        template <typename IteratorT>
        inline IteratorT
        get_last(IteratorT first)
        {
            while (*first)
                first++;
            return first;
        }

        template<
            typename RT,
            typename IteratorT,
            typename ScannerT>
        inline RT
        string_parser_parse(
            IteratorT str_first,
            IteratorT str_last,
            ScannerT& scan)
        {
            typedef typename ScannerT::iterator_t iterator_t;
            iterator_t saved = scan.first;
            std::size_t slen = str_last - str_first;

            while (str_first != str_last)
            {
                if (scan.at_end() || (*str_first != *scan))
                    return scan.no_match();
                ++str_first;
                ++scan;
            }

            return scan.create_match(slen, nil_t(), saved, scan.first);
        }

    ///////////////////////////////////////////////////////////////////////////
    //
    // Conversion from char_type to int_type
    //
    ///////////////////////////////////////////////////////////////////////////

        //  Use char_traits for char and wchar_t only, as these are the only
        //  specializations provided in the standard. Other types are on their
        //  own.
        //
        //  For UDT, one may override:
        //
        //      isalnum
        //      isalpha
        //      iscntrl
        //      isdigit
        //      isgraph
        //      islower
        //      isprint
        //      ispunct
        //      isspace
        //      isupper
        //      isxdigit
        //      isblank
        //      isupper
        //      tolower
        //      toupper
        //
        //  in a namespace suitable for Argument Dependent lookup or in
        //  namespace std (disallowed by the standard).

        template <typename CharT>
        struct char_type_char_traits_helper
        {
            typedef CharT char_type;
            typedef typename std::char_traits<CharT>::int_type int_type;

            static int_type to_int_type(CharT c)
            {
                return std::char_traits<CharT>::to_int_type(c);
            }

            static char_type to_char_type(int_type i)
            {
                return std::char_traits<CharT>::to_char_type(i);
            }
        };

        template <typename CharT>
        struct char_traits_helper
        {
            typedef CharT char_type;
            typedef CharT int_type;

            static CharT & to_int_type(CharT & c)
            {
                return c;
            }

            static CharT & to_char_type(CharT & c)
            {
                return c;
            }
        };

        template <>
        struct char_traits_helper<char>
            : char_type_char_traits_helper<char>
        {
        };

#if !defined(BOOST_NO_CWCTYPE)

        template <>
        struct char_traits_helper<wchar_t>
            : char_type_char_traits_helper<wchar_t>
        {
        };

#endif

        template <typename CharT>
        inline typename char_traits_helper<CharT>::int_type
        to_int_type(CharT c)
        {
            return char_traits_helper<CharT>::to_int_type(c);
        }

        template <typename CharT>
        inline CharT
        to_char_type(typename char_traits_helper<CharT>::int_type c)
        {
            return char_traits_helper<CharT>::to_char_type(c);
        }

        ///////////////////////////////////////////////////////////////////////
        //
        //  Convenience functions
        //
        ///////////////////////////////////////////////////////////////////////

        template <typename CharT>
        inline bool
        isalnum_(CharT c)
        {
            using namespace std;
            return isalnum(to_int_type(c)) ? true : false;
        }

        template <typename CharT>
        inline bool
        isalpha_(CharT c)
        {
            using namespace std;
            return isalpha(to_int_type(c)) ? true : false;
        }

        template <typename CharT>
        inline bool
        iscntrl_(CharT c)
        {
            using namespace std;
            return iscntrl(to_int_type(c)) ? true : false;
        }

        template <typename CharT>
        inline bool
        isdigit_(CharT c)
        {
            using namespace std;
            return isdigit(to_int_type(c)) ? true : false;
        }

        template <typename CharT>
        inline bool
        isgraph_(CharT c)
        {
            using namespace std;
            return isgraph(to_int_type(c)) ? true : false;
        }

        template <typename CharT>
        inline bool
        islower_(CharT c)
        {
            using namespace std;
            return islower(to_int_type(c)) ? true : false;
        }

        template <typename CharT>
        inline bool
        isprint_(CharT c)
        {
            using namespace std;
            return isprint(to_int_type(c)) ? true : false;
        }

        template <typename CharT>
        inline bool
        ispunct_(CharT c)
        {
            using namespace std;
            return ispunct(to_int_type(c)) ? true : false;
        }

        template <typename CharT>
        inline bool
        isspace_(CharT c)
        {
            using namespace std;
            return isspace(to_int_type(c)) ? true : false;
        }

        template <typename CharT>
        inline bool
        isupper_(CharT c)
        {
            using namespace std;
            return isupper(to_int_type(c)) ? true : false;
        }

        template <typename CharT>
        inline bool
        isxdigit_(CharT c)
        {
            using namespace std;
            return isxdigit(to_int_type(c)) ? true : false;
        }

        template <typename CharT>
        inline bool
        isblank_(CharT c)
        {
            return (c == ' ' || c == '\t');
        }

        template <typename CharT>
        inline CharT
        tolower_(CharT c)
        {
            using namespace std;
            return to_char_type<CharT>(tolower(to_int_type(c)));
        }

        template <typename CharT>
        inline CharT
        toupper_(CharT c)
        {
            using namespace std;
            return to_char_type<CharT>(toupper(to_int_type(c)));
        }

#if !defined(BOOST_NO_CWCTYPE)

        inline bool
        isalnum_(wchar_t c)
        {
            using namespace std;
            return iswalnum(to_int_type(c)) ? true : false;
        }

        inline bool
        isalpha_(wchar_t c)
        {
            using namespace std;
            return iswalpha(to_int_type(c)) ? true : false;
        }

        inline bool
        iscntrl_(wchar_t c)
        {
            using namespace std;
            return iswcntrl(to_int_type(c)) ? true : false;
        }

        inline bool
        isdigit_(wchar_t c)
        {
            using namespace std;
            return iswdigit(to_int_type(c)) ? true : false;
        }

        inline bool
        isgraph_(wchar_t c)
        {
            using namespace std;
            return iswgraph(to_int_type(c)) ? true : false;
        }

        inline bool
        islower_(wchar_t c)
        {
            using namespace std;
            return iswlower(to_int_type(c)) ? true : false;
        }

        inline bool
        isprint_(wchar_t c)
        {
            using namespace std;
            return iswprint(to_int_type(c)) ? true : false;
        }

        inline bool
        ispunct_(wchar_t c)
        {
            using namespace std;
            return iswpunct(to_int_type(c)) ? true : false;
        }

        inline bool
        isspace_(wchar_t c)
        {
            using namespace std;
            return iswspace(to_int_type(c)) ? true : false;
        }

        inline bool
        isupper_(wchar_t c)
        {
            using namespace std;
            return iswupper(to_int_type(c)) ? true : false;
        }

        inline bool
        isxdigit_(wchar_t c)
        {
            using namespace std;
            return iswxdigit(to_int_type(c)) ? true : false;
        }

        inline bool
        isblank_(wchar_t c)
        {
            return (c == L' ' || c == L'\t');
        }

        inline wchar_t
        tolower_(wchar_t c)
        {
            using namespace std;
            return to_char_type<wchar_t>(towlower(to_int_type(c)));
        }

        inline wchar_t
        toupper_(wchar_t c)
        {
            using namespace std;
            return to_char_type<wchar_t>(towupper(to_int_type(c)));
        }

        inline bool
        isblank_(bool)
        {
            return false;
        }

#endif // !defined(BOOST_NO_CWCTYPE)

}

BOOST_SPIRIT_CLASSIC_NAMESPACE_END

}} // namespace boost::spirit::impl

#ifdef BOOST_MSVC
#pragma warning (pop)
#endif

#endif