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8690e634 JK |
1 | /* A substitute for ISO C99 <wctype.h>, for platforms that lack it. |
2 | ||
3 | Copyright (C) 2006-2012 Free Software Foundation, Inc. | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 3, or (at your option) | |
8 | any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, see <http://www.gnu.org/licenses/>. */ | |
17 | ||
18 | /* Written by Bruno Haible and Paul Eggert. */ | |
19 | ||
20 | /* | |
21 | * ISO C 99 <wctype.h> for platforms that lack it. | |
22 | * <http://www.opengroup.org/susv3xbd/wctype.h.html> | |
23 | * | |
24 | * iswctype, towctrans, towlower, towupper, wctrans, wctype, | |
25 | * wctrans_t, and wctype_t are not yet implemented. | |
26 | */ | |
27 | ||
28 | #ifndef _@GUARD_PREFIX@_WCTYPE_H | |
29 | ||
30 | #if __GNUC__ >= 3 | |
31 | @PRAGMA_SYSTEM_HEADER@ | |
32 | #endif | |
33 | @PRAGMA_COLUMNS@ | |
34 | ||
35 | #if @HAVE_WINT_T@ | |
36 | /* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>. | |
37 | Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before | |
38 | <wchar.h>. | |
39 | BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be | |
40 | included before <wchar.h>. */ | |
41 | # include <stddef.h> | |
42 | # include <stdio.h> | |
43 | # include <time.h> | |
44 | # include <wchar.h> | |
45 | #endif | |
46 | ||
47 | /* Include the original <wctype.h> if it exists. | |
48 | BeOS 5 has the functions but no <wctype.h>. */ | |
49 | /* The include_next requires a split double-inclusion guard. */ | |
50 | #if @HAVE_WCTYPE_H@ | |
51 | # @INCLUDE_NEXT@ @NEXT_WCTYPE_H@ | |
52 | #endif | |
53 | ||
54 | #ifndef _@GUARD_PREFIX@_WCTYPE_H | |
55 | #define _@GUARD_PREFIX@_WCTYPE_H | |
56 | ||
a512b375 JB |
57 | _GL_INLINE_HEADER_BEGIN |
58 | #ifndef _GL_WCTYPE_INLINE | |
59 | # define _GL_WCTYPE_INLINE _GL_INLINE | |
60 | #endif | |
61 | ||
8690e634 JK |
62 | /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ |
63 | ||
64 | /* The definition of _GL_WARN_ON_USE is copied here. */ | |
65 | ||
66 | /* Solaris 2.6 <wctype.h> includes <widec.h> which includes <euc.h> which | |
67 | #defines a number of identifiers in the application namespace. Revert | |
68 | these #defines. */ | |
69 | #ifdef __sun | |
70 | # undef multibyte | |
71 | # undef eucw1 | |
72 | # undef eucw2 | |
73 | # undef eucw3 | |
74 | # undef scrw1 | |
75 | # undef scrw2 | |
76 | # undef scrw3 | |
77 | #endif | |
78 | ||
79 | /* Define wint_t and WEOF. (Also done in wchar.in.h.) */ | |
80 | #if !@HAVE_WINT_T@ && !defined wint_t | |
81 | # define wint_t int | |
82 | # ifndef WEOF | |
83 | # define WEOF -1 | |
84 | # endif | |
85 | #else | |
86 | /* MSVC defines wint_t as 'unsigned short' in <crtdefs.h>. | |
87 | This is too small: ISO C 99 section 7.24.1.(2) says that wint_t must be | |
88 | "unchanged by default argument promotions". Override it. */ | |
89 | # if defined _MSC_VER | |
90 | # if !GNULIB_defined_wint_t | |
91 | # include <crtdefs.h> | |
92 | typedef unsigned int rpl_wint_t; | |
93 | # undef wint_t | |
94 | # define wint_t rpl_wint_t | |
95 | # define GNULIB_defined_wint_t 1 | |
96 | # endif | |
97 | # endif | |
98 | # ifndef WEOF | |
99 | # define WEOF ((wint_t) -1) | |
100 | # endif | |
101 | #endif | |
102 | ||
103 | ||
104 | #if !GNULIB_defined_wctype_functions | |
105 | ||
106 | /* FreeBSD 4.4 to 4.11 has <wctype.h> but lacks the functions. | |
107 | Linux libc5 has <wctype.h> and the functions but they are broken. | |
108 | Assume all 11 functions (all isw* except iswblank) are implemented the | |
109 | same way, or not at all. */ | |
110 | # if ! @HAVE_ISWCNTRL@ || @REPLACE_ISWCNTRL@ | |
111 | ||
112 | /* IRIX 5.3 has macros but no functions, its isw* macros refer to an | |
113 | undefined variable _ctmp_ and to <ctype.h> macros like _P, and they | |
114 | refer to system functions like _iswctype that are not in the | |
115 | standard C library. Rather than try to get ancient buggy | |
116 | implementations like this to work, just disable them. */ | |
117 | # undef iswalnum | |
118 | # undef iswalpha | |
119 | # undef iswblank | |
120 | # undef iswcntrl | |
121 | # undef iswdigit | |
122 | # undef iswgraph | |
123 | # undef iswlower | |
124 | # undef iswprint | |
125 | # undef iswpunct | |
126 | # undef iswspace | |
127 | # undef iswupper | |
128 | # undef iswxdigit | |
129 | # undef towlower | |
130 | # undef towupper | |
131 | ||
132 | /* Linux libc5 has <wctype.h> and the functions but they are broken. */ | |
133 | # if @REPLACE_ISWCNTRL@ | |
134 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
135 | # define iswalnum rpl_iswalnum | |
136 | # define iswalpha rpl_iswalpha | |
137 | # define iswblank rpl_iswblank | |
138 | # define iswcntrl rpl_iswcntrl | |
139 | # define iswdigit rpl_iswdigit | |
140 | # define iswgraph rpl_iswgraph | |
141 | # define iswlower rpl_iswlower | |
142 | # define iswprint rpl_iswprint | |
143 | # define iswpunct rpl_iswpunct | |
144 | # define iswspace rpl_iswspace | |
145 | # define iswupper rpl_iswupper | |
146 | # define iswxdigit rpl_iswxdigit | |
147 | # endif | |
148 | # endif | |
149 | # if @REPLACE_TOWLOWER@ | |
150 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
151 | # define towlower rpl_towlower | |
152 | # define towupper rpl_towupper | |
153 | # endif | |
154 | # endif | |
155 | ||
a512b375 | 156 | _GL_WCTYPE_INLINE int |
8690e634 JK |
157 | # if @REPLACE_ISWCNTRL@ |
158 | rpl_iswalnum | |
159 | # else | |
160 | iswalnum | |
161 | # endif | |
162 | (wint_t wc) | |
163 | { | |
164 | return ((wc >= '0' && wc <= '9') | |
165 | || ((wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'Z')); | |
166 | } | |
167 | ||
a512b375 | 168 | _GL_WCTYPE_INLINE int |
8690e634 JK |
169 | # if @REPLACE_ISWCNTRL@ |
170 | rpl_iswalpha | |
171 | # else | |
172 | iswalpha | |
173 | # endif | |
174 | (wint_t wc) | |
175 | { | |
176 | return (wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'Z'; | |
177 | } | |
178 | ||
a512b375 | 179 | _GL_WCTYPE_INLINE int |
8690e634 JK |
180 | # if @REPLACE_ISWCNTRL@ |
181 | rpl_iswblank | |
182 | # else | |
183 | iswblank | |
184 | # endif | |
185 | (wint_t wc) | |
186 | { | |
187 | return wc == ' ' || wc == '\t'; | |
188 | } | |
189 | ||
a512b375 | 190 | _GL_WCTYPE_INLINE int |
8690e634 JK |
191 | # if @REPLACE_ISWCNTRL@ |
192 | rpl_iswcntrl | |
193 | # else | |
194 | iswcntrl | |
195 | # endif | |
196 | (wint_t wc) | |
197 | { | |
198 | return (wc & ~0x1f) == 0 || wc == 0x7f; | |
199 | } | |
200 | ||
a512b375 | 201 | _GL_WCTYPE_INLINE int |
8690e634 JK |
202 | # if @REPLACE_ISWCNTRL@ |
203 | rpl_iswdigit | |
204 | # else | |
205 | iswdigit | |
206 | # endif | |
207 | (wint_t wc) | |
208 | { | |
209 | return wc >= '0' && wc <= '9'; | |
210 | } | |
211 | ||
a512b375 | 212 | _GL_WCTYPE_INLINE int |
8690e634 JK |
213 | # if @REPLACE_ISWCNTRL@ |
214 | rpl_iswgraph | |
215 | # else | |
216 | iswgraph | |
217 | # endif | |
218 | (wint_t wc) | |
219 | { | |
220 | return wc >= '!' && wc <= '~'; | |
221 | } | |
222 | ||
a512b375 | 223 | _GL_WCTYPE_INLINE int |
8690e634 JK |
224 | # if @REPLACE_ISWCNTRL@ |
225 | rpl_iswlower | |
226 | # else | |
227 | iswlower | |
228 | # endif | |
229 | (wint_t wc) | |
230 | { | |
231 | return wc >= 'a' && wc <= 'z'; | |
232 | } | |
233 | ||
a512b375 | 234 | _GL_WCTYPE_INLINE int |
8690e634 JK |
235 | # if @REPLACE_ISWCNTRL@ |
236 | rpl_iswprint | |
237 | # else | |
238 | iswprint | |
239 | # endif | |
240 | (wint_t wc) | |
241 | { | |
242 | return wc >= ' ' && wc <= '~'; | |
243 | } | |
244 | ||
a512b375 | 245 | _GL_WCTYPE_INLINE int |
8690e634 JK |
246 | # if @REPLACE_ISWCNTRL@ |
247 | rpl_iswpunct | |
248 | # else | |
249 | iswpunct | |
250 | # endif | |
251 | (wint_t wc) | |
252 | { | |
253 | return (wc >= '!' && wc <= '~' | |
254 | && !((wc >= '0' && wc <= '9') | |
255 | || ((wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'Z'))); | |
256 | } | |
257 | ||
a512b375 | 258 | _GL_WCTYPE_INLINE int |
8690e634 JK |
259 | # if @REPLACE_ISWCNTRL@ |
260 | rpl_iswspace | |
261 | # else | |
262 | iswspace | |
263 | # endif | |
264 | (wint_t wc) | |
265 | { | |
266 | return (wc == ' ' || wc == '\t' | |
267 | || wc == '\n' || wc == '\v' || wc == '\f' || wc == '\r'); | |
268 | } | |
269 | ||
a512b375 | 270 | _GL_WCTYPE_INLINE int |
8690e634 JK |
271 | # if @REPLACE_ISWCNTRL@ |
272 | rpl_iswupper | |
273 | # else | |
274 | iswupper | |
275 | # endif | |
276 | (wint_t wc) | |
277 | { | |
278 | return wc >= 'A' && wc <= 'Z'; | |
279 | } | |
280 | ||
a512b375 | 281 | _GL_WCTYPE_INLINE int |
8690e634 JK |
282 | # if @REPLACE_ISWCNTRL@ |
283 | rpl_iswxdigit | |
284 | # else | |
285 | iswxdigit | |
286 | # endif | |
287 | (wint_t wc) | |
288 | { | |
289 | return ((wc >= '0' && wc <= '9') | |
290 | || ((wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'F')); | |
291 | } | |
292 | ||
a512b375 | 293 | _GL_WCTYPE_INLINE wint_t |
8690e634 JK |
294 | # if @REPLACE_TOWLOWER@ |
295 | rpl_towlower | |
296 | # else | |
297 | towlower | |
298 | # endif | |
299 | (wint_t wc) | |
300 | { | |
301 | return (wc >= 'A' && wc <= 'Z' ? wc - 'A' + 'a' : wc); | |
302 | } | |
303 | ||
a512b375 | 304 | _GL_WCTYPE_INLINE wint_t |
8690e634 JK |
305 | # if @REPLACE_TOWLOWER@ |
306 | rpl_towupper | |
307 | # else | |
308 | towupper | |
309 | # endif | |
310 | (wint_t wc) | |
311 | { | |
312 | return (wc >= 'a' && wc <= 'z' ? wc - 'a' + 'A' : wc); | |
313 | } | |
314 | ||
315 | # elif @GNULIB_ISWBLANK@ && (! @HAVE_ISWBLANK@ || @REPLACE_ISWBLANK@) | |
316 | /* Only the iswblank function is missing. */ | |
317 | ||
318 | # if @REPLACE_ISWBLANK@ | |
319 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
320 | # define iswblank rpl_iswblank | |
321 | # endif | |
322 | _GL_FUNCDECL_RPL (iswblank, int, (wint_t wc)); | |
323 | # else | |
324 | _GL_FUNCDECL_SYS (iswblank, int, (wint_t wc)); | |
325 | # endif | |
326 | ||
327 | # endif | |
328 | ||
329 | # if defined __MINGW32__ | |
330 | ||
331 | /* On native Windows, wchar_t is uint16_t, and wint_t is uint32_t. | |
332 | The functions towlower and towupper are implemented in the MSVCRT library | |
333 | to take a wchar_t argument and return a wchar_t result. mingw declares | |
334 | these functions to take a wint_t argument and return a wint_t result. | |
335 | This means that: | |
336 | 1. When the user passes an argument outside the range 0x0000..0xFFFF, the | |
337 | function will look only at the lower 16 bits. This is allowed according | |
338 | to POSIX. | |
339 | 2. The return value is returned in the lower 16 bits of the result register. | |
340 | The upper 16 bits are random: whatever happened to be in that part of the | |
341 | result register. We need to fix this by adding a zero-extend from | |
342 | wchar_t to wint_t after the call. */ | |
343 | ||
a512b375 | 344 | _GL_WCTYPE_INLINE wint_t |
8690e634 JK |
345 | rpl_towlower (wint_t wc) |
346 | { | |
347 | return (wint_t) (wchar_t) towlower (wc); | |
348 | } | |
349 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
350 | # define towlower rpl_towlower | |
351 | # endif | |
352 | ||
a512b375 | 353 | _GL_WCTYPE_INLINE wint_t |
8690e634 JK |
354 | rpl_towupper (wint_t wc) |
355 | { | |
356 | return (wint_t) (wchar_t) towupper (wc); | |
357 | } | |
358 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
359 | # define towupper rpl_towupper | |
360 | # endif | |
361 | ||
362 | # endif /* __MINGW32__ */ | |
363 | ||
364 | # define GNULIB_defined_wctype_functions 1 | |
365 | #endif | |
366 | ||
367 | #if @REPLACE_ISWCNTRL@ | |
368 | _GL_CXXALIAS_RPL (iswalnum, int, (wint_t wc)); | |
369 | _GL_CXXALIAS_RPL (iswalpha, int, (wint_t wc)); | |
370 | _GL_CXXALIAS_RPL (iswcntrl, int, (wint_t wc)); | |
371 | _GL_CXXALIAS_RPL (iswdigit, int, (wint_t wc)); | |
372 | _GL_CXXALIAS_RPL (iswgraph, int, (wint_t wc)); | |
373 | _GL_CXXALIAS_RPL (iswlower, int, (wint_t wc)); | |
374 | _GL_CXXALIAS_RPL (iswprint, int, (wint_t wc)); | |
375 | _GL_CXXALIAS_RPL (iswpunct, int, (wint_t wc)); | |
376 | _GL_CXXALIAS_RPL (iswspace, int, (wint_t wc)); | |
377 | _GL_CXXALIAS_RPL (iswupper, int, (wint_t wc)); | |
378 | _GL_CXXALIAS_RPL (iswxdigit, int, (wint_t wc)); | |
379 | #else | |
380 | _GL_CXXALIAS_SYS (iswalnum, int, (wint_t wc)); | |
381 | _GL_CXXALIAS_SYS (iswalpha, int, (wint_t wc)); | |
382 | _GL_CXXALIAS_SYS (iswcntrl, int, (wint_t wc)); | |
383 | _GL_CXXALIAS_SYS (iswdigit, int, (wint_t wc)); | |
384 | _GL_CXXALIAS_SYS (iswgraph, int, (wint_t wc)); | |
385 | _GL_CXXALIAS_SYS (iswlower, int, (wint_t wc)); | |
386 | _GL_CXXALIAS_SYS (iswprint, int, (wint_t wc)); | |
387 | _GL_CXXALIAS_SYS (iswpunct, int, (wint_t wc)); | |
388 | _GL_CXXALIAS_SYS (iswspace, int, (wint_t wc)); | |
389 | _GL_CXXALIAS_SYS (iswupper, int, (wint_t wc)); | |
390 | _GL_CXXALIAS_SYS (iswxdigit, int, (wint_t wc)); | |
391 | #endif | |
392 | _GL_CXXALIASWARN (iswalnum); | |
393 | _GL_CXXALIASWARN (iswalpha); | |
394 | _GL_CXXALIASWARN (iswcntrl); | |
395 | _GL_CXXALIASWARN (iswdigit); | |
396 | _GL_CXXALIASWARN (iswgraph); | |
397 | _GL_CXXALIASWARN (iswlower); | |
398 | _GL_CXXALIASWARN (iswprint); | |
399 | _GL_CXXALIASWARN (iswpunct); | |
400 | _GL_CXXALIASWARN (iswspace); | |
401 | _GL_CXXALIASWARN (iswupper); | |
402 | _GL_CXXALIASWARN (iswxdigit); | |
403 | ||
404 | #if @GNULIB_ISWBLANK@ | |
405 | # if @REPLACE_ISWCNTRL@ || @REPLACE_ISWBLANK@ | |
406 | _GL_CXXALIAS_RPL (iswblank, int, (wint_t wc)); | |
407 | # else | |
408 | _GL_CXXALIAS_SYS (iswblank, int, (wint_t wc)); | |
409 | # endif | |
410 | _GL_CXXALIASWARN (iswblank); | |
411 | #endif | |
412 | ||
413 | #if !@HAVE_WCTYPE_T@ | |
414 | # if !GNULIB_defined_wctype_t | |
415 | typedef void * wctype_t; | |
416 | # define GNULIB_defined_wctype_t 1 | |
417 | # endif | |
418 | #endif | |
419 | ||
420 | /* Get a descriptor for a wide character property. */ | |
421 | #if @GNULIB_WCTYPE@ | |
422 | # if !@HAVE_WCTYPE_T@ | |
423 | _GL_FUNCDECL_SYS (wctype, wctype_t, (const char *name)); | |
424 | # endif | |
425 | _GL_CXXALIAS_SYS (wctype, wctype_t, (const char *name)); | |
426 | _GL_CXXALIASWARN (wctype); | |
427 | #elif defined GNULIB_POSIXCHECK | |
428 | # undef wctype | |
429 | # if HAVE_RAW_DECL_WCTYPE | |
430 | _GL_WARN_ON_USE (wctype, "wctype is unportable - " | |
431 | "use gnulib module wctype for portability"); | |
432 | # endif | |
433 | #endif | |
434 | ||
435 | /* Test whether a wide character has a given property. | |
436 | The argument WC must be either a wchar_t value or WEOF. | |
437 | The argument DESC must have been returned by the wctype() function. */ | |
438 | #if @GNULIB_ISWCTYPE@ | |
439 | # if !@HAVE_WCTYPE_T@ | |
440 | _GL_FUNCDECL_SYS (iswctype, int, (wint_t wc, wctype_t desc)); | |
441 | # endif | |
442 | _GL_CXXALIAS_SYS (iswctype, int, (wint_t wc, wctype_t desc)); | |
443 | _GL_CXXALIASWARN (iswctype); | |
444 | #elif defined GNULIB_POSIXCHECK | |
445 | # undef iswctype | |
446 | # if HAVE_RAW_DECL_ISWCTYPE | |
447 | _GL_WARN_ON_USE (iswctype, "iswctype is unportable - " | |
448 | "use gnulib module iswctype for portability"); | |
449 | # endif | |
450 | #endif | |
451 | ||
452 | #if @REPLACE_TOWLOWER@ || defined __MINGW32__ | |
453 | _GL_CXXALIAS_RPL (towlower, wint_t, (wint_t wc)); | |
454 | _GL_CXXALIAS_RPL (towupper, wint_t, (wint_t wc)); | |
455 | #else | |
456 | _GL_CXXALIAS_SYS (towlower, wint_t, (wint_t wc)); | |
457 | _GL_CXXALIAS_SYS (towupper, wint_t, (wint_t wc)); | |
458 | #endif | |
459 | _GL_CXXALIASWARN (towlower); | |
460 | _GL_CXXALIASWARN (towupper); | |
461 | ||
462 | #if !@HAVE_WCTRANS_T@ | |
463 | # if !GNULIB_defined_wctrans_t | |
464 | typedef void * wctrans_t; | |
465 | # define GNULIB_defined_wctrans_t 1 | |
466 | # endif | |
467 | #endif | |
468 | ||
469 | /* Get a descriptor for a wide character case conversion. */ | |
470 | #if @GNULIB_WCTRANS@ | |
471 | # if !@HAVE_WCTRANS_T@ | |
472 | _GL_FUNCDECL_SYS (wctrans, wctrans_t, (const char *name)); | |
473 | # endif | |
474 | _GL_CXXALIAS_SYS (wctrans, wctrans_t, (const char *name)); | |
475 | _GL_CXXALIASWARN (wctrans); | |
476 | #elif defined GNULIB_POSIXCHECK | |
477 | # undef wctrans | |
478 | # if HAVE_RAW_DECL_WCTRANS | |
479 | _GL_WARN_ON_USE (wctrans, "wctrans is unportable - " | |
480 | "use gnulib module wctrans for portability"); | |
481 | # endif | |
482 | #endif | |
483 | ||
484 | /* Perform a given case conversion on a wide character. | |
485 | The argument WC must be either a wchar_t value or WEOF. | |
486 | The argument DESC must have been returned by the wctrans() function. */ | |
487 | #if @GNULIB_TOWCTRANS@ | |
488 | # if !@HAVE_WCTRANS_T@ | |
489 | _GL_FUNCDECL_SYS (towctrans, wint_t, (wint_t wc, wctrans_t desc)); | |
490 | # endif | |
491 | _GL_CXXALIAS_SYS (towctrans, wint_t, (wint_t wc, wctrans_t desc)); | |
492 | _GL_CXXALIASWARN (towctrans); | |
493 | #elif defined GNULIB_POSIXCHECK | |
494 | # undef towctrans | |
495 | # if HAVE_RAW_DECL_TOWCTRANS | |
496 | _GL_WARN_ON_USE (towctrans, "towctrans is unportable - " | |
497 | "use gnulib module towctrans for portability"); | |
498 | # endif | |
499 | #endif | |
500 | ||
a512b375 | 501 | _GL_INLINE_HEADER_END |
8690e634 JK |
502 | |
503 | #endif /* _@GUARD_PREFIX@_WCTYPE_H */ | |
504 | #endif /* _@GUARD_PREFIX@_WCTYPE_H */ |