1 /* A substitute for ISO C99 <wctype.h>, for platforms that lack it.
3 Copyright (C) 2006-2012 Free Software Foundation, Inc.
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)
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.
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/>. */
18 /* Written by Bruno Haible and Paul Eggert. */
21 * ISO C 99 <wctype.h> for platforms that lack it.
22 * <http://www.opengroup.org/susv3xbd/wctype.h.html>
24 * iswctype, towctrans, towlower, towupper, wctrans, wctype,
25 * wctrans_t, and wctype_t are not yet implemented.
28 #ifndef _@GUARD_PREFIX@_WCTYPE_H
31 @PRAGMA_SYSTEM_HEADER@
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
39 BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
40 included before <wchar.h>. */
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. */
51 # @INCLUDE_NEXT@ @NEXT_WCTYPE_H@
54 #ifndef _@GUARD_PREFIX@_WCTYPE_H
55 #define _@GUARD_PREFIX@_WCTYPE_H
57 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
59 /* The definition of _GL_WARN_ON_USE is copied here. */
61 /* Solaris 2.6 <wctype.h> includes <widec.h> which includes <euc.h> which
62 #defines a number of identifiers in the application namespace. Revert
74 /* Define wint_t and WEOF. (Also done in wchar.in.h.) */
75 #if !@HAVE_WINT_T@ && !defined wint_t
81 /* MSVC defines wint_t as 'unsigned short' in <crtdefs.h>.
82 This is too small: ISO C 99 section 7.24.1.(2) says that wint_t must be
83 "unchanged by default argument promotions". Override it. */
85 # if !GNULIB_defined_wint_t
87 typedef unsigned int rpl_wint_t
;
89 # define wint_t rpl_wint_t
90 # define GNULIB_defined_wint_t 1
94 # define WEOF ((wint_t) -1)
99 #if !GNULIB_defined_wctype_functions
101 /* FreeBSD 4.4 to 4.11 has <wctype.h> but lacks the functions.
102 Linux libc5 has <wctype.h> and the functions but they are broken.
103 Assume all 11 functions (all isw* except iswblank) are implemented the
104 same way, or not at all. */
105 # if ! @HAVE_ISWCNTRL@ || @REPLACE_ISWCNTRL@
107 /* IRIX 5.3 has macros but no functions, its isw* macros refer to an
108 undefined variable _ctmp_ and to <ctype.h> macros like _P, and they
109 refer to system functions like _iswctype that are not in the
110 standard C library. Rather than try to get ancient buggy
111 implementations like this to work, just disable them. */
127 /* Linux libc5 has <wctype.h> and the functions but they are broken. */
128 # if @REPLACE_ISWCNTRL@
129 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
130 # define iswalnum rpl_iswalnum
131 # define iswalpha rpl_iswalpha
132 # define iswblank rpl_iswblank
133 # define iswcntrl rpl_iswcntrl
134 # define iswdigit rpl_iswdigit
135 # define iswgraph rpl_iswgraph
136 # define iswlower rpl_iswlower
137 # define iswprint rpl_iswprint
138 # define iswpunct rpl_iswpunct
139 # define iswspace rpl_iswspace
140 # define iswupper rpl_iswupper
141 # define iswxdigit rpl_iswxdigit
144 # if @REPLACE_TOWLOWER@
145 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
146 # define towlower rpl_towlower
147 # define towupper rpl_towupper
152 # if @REPLACE_ISWCNTRL@
159 return ((wc
>= '0' && wc
<= '9')
160 || ((wc
& ~0x20) >= 'A' && (wc
& ~0x20) <= 'Z'));
164 # if @REPLACE_ISWCNTRL@
171 return (wc
& ~0x20) >= 'A' && (wc
& ~0x20) <= 'Z';
175 # if @REPLACE_ISWCNTRL@
182 return wc
== ' ' || wc
== '\t';
186 # if @REPLACE_ISWCNTRL@
193 return (wc
& ~0x1f) == 0 || wc
== 0x7f;
197 # if @REPLACE_ISWCNTRL@
204 return wc
>= '0' && wc
<= '9';
208 # if @REPLACE_ISWCNTRL@
215 return wc
>= '!' && wc
<= '~';
219 # if @REPLACE_ISWCNTRL@
226 return wc
>= 'a' && wc
<= 'z';
230 # if @REPLACE_ISWCNTRL@
237 return wc
>= ' ' && wc
<= '~';
241 # if @REPLACE_ISWCNTRL@
248 return (wc
>= '!' && wc
<= '~'
249 && !((wc
>= '0' && wc
<= '9')
250 || ((wc
& ~0x20) >= 'A' && (wc
& ~0x20) <= 'Z')));
254 # if @REPLACE_ISWCNTRL@
261 return (wc
== ' ' || wc
== '\t'
262 || wc
== '\n' || wc
== '\v' || wc
== '\f' || wc
== '\r');
266 # if @REPLACE_ISWCNTRL@
273 return wc
>= 'A' && wc
<= 'Z';
277 # if @REPLACE_ISWCNTRL@
284 return ((wc
>= '0' && wc
<= '9')
285 || ((wc
& ~0x20) >= 'A' && (wc
& ~0x20) <= 'F'));
289 # if @REPLACE_TOWLOWER@
296 return (wc
>= 'A' && wc
<= 'Z' ? wc
- 'A' + 'a' : wc
);
300 # if @REPLACE_TOWLOWER@
307 return (wc
>= 'a' && wc
<= 'z' ? wc
- 'a' + 'A' : wc
);
310 # elif @GNULIB_ISWBLANK@ && (! @HAVE_ISWBLANK@ || @REPLACE_ISWBLANK@)
311 /* Only the iswblank function is missing. */
313 # if @REPLACE_ISWBLANK@
314 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
315 # define iswblank rpl_iswblank
317 _GL_FUNCDECL_RPL (iswblank
, int, (wint_t wc
));
319 _GL_FUNCDECL_SYS (iswblank
, int, (wint_t wc
));
324 # if defined __MINGW32__
326 /* On native Windows, wchar_t is uint16_t, and wint_t is uint32_t.
327 The functions towlower and towupper are implemented in the MSVCRT library
328 to take a wchar_t argument and return a wchar_t result. mingw declares
329 these functions to take a wint_t argument and return a wint_t result.
331 1. When the user passes an argument outside the range 0x0000..0xFFFF, the
332 function will look only at the lower 16 bits. This is allowed according
334 2. The return value is returned in the lower 16 bits of the result register.
335 The upper 16 bits are random: whatever happened to be in that part of the
336 result register. We need to fix this by adding a zero-extend from
337 wchar_t to wint_t after the call. */
340 rpl_towlower (wint_t wc
)
342 return (wint_t) (wchar_t) towlower (wc
);
344 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
345 # define towlower rpl_towlower
349 rpl_towupper (wint_t wc
)
351 return (wint_t) (wchar_t) towupper (wc
);
353 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
354 # define towupper rpl_towupper
357 # endif /* __MINGW32__ */
359 # define GNULIB_defined_wctype_functions 1
362 #if @REPLACE_ISWCNTRL@
363 _GL_CXXALIAS_RPL (iswalnum
, int, (wint_t wc
));
364 _GL_CXXALIAS_RPL (iswalpha
, int, (wint_t wc
));
365 _GL_CXXALIAS_RPL (iswcntrl
, int, (wint_t wc
));
366 _GL_CXXALIAS_RPL (iswdigit
, int, (wint_t wc
));
367 _GL_CXXALIAS_RPL (iswgraph
, int, (wint_t wc
));
368 _GL_CXXALIAS_RPL (iswlower
, int, (wint_t wc
));
369 _GL_CXXALIAS_RPL (iswprint
, int, (wint_t wc
));
370 _GL_CXXALIAS_RPL (iswpunct
, int, (wint_t wc
));
371 _GL_CXXALIAS_RPL (iswspace
, int, (wint_t wc
));
372 _GL_CXXALIAS_RPL (iswupper
, int, (wint_t wc
));
373 _GL_CXXALIAS_RPL (iswxdigit
, int, (wint_t wc
));
375 _GL_CXXALIAS_SYS (iswalnum
, int, (wint_t wc
));
376 _GL_CXXALIAS_SYS (iswalpha
, int, (wint_t wc
));
377 _GL_CXXALIAS_SYS (iswcntrl
, int, (wint_t wc
));
378 _GL_CXXALIAS_SYS (iswdigit
, int, (wint_t wc
));
379 _GL_CXXALIAS_SYS (iswgraph
, int, (wint_t wc
));
380 _GL_CXXALIAS_SYS (iswlower
, int, (wint_t wc
));
381 _GL_CXXALIAS_SYS (iswprint
, int, (wint_t wc
));
382 _GL_CXXALIAS_SYS (iswpunct
, int, (wint_t wc
));
383 _GL_CXXALIAS_SYS (iswspace
, int, (wint_t wc
));
384 _GL_CXXALIAS_SYS (iswupper
, int, (wint_t wc
));
385 _GL_CXXALIAS_SYS (iswxdigit
, int, (wint_t wc
));
387 _GL_CXXALIASWARN (iswalnum
);
388 _GL_CXXALIASWARN (iswalpha
);
389 _GL_CXXALIASWARN (iswcntrl
);
390 _GL_CXXALIASWARN (iswdigit
);
391 _GL_CXXALIASWARN (iswgraph
);
392 _GL_CXXALIASWARN (iswlower
);
393 _GL_CXXALIASWARN (iswprint
);
394 _GL_CXXALIASWARN (iswpunct
);
395 _GL_CXXALIASWARN (iswspace
);
396 _GL_CXXALIASWARN (iswupper
);
397 _GL_CXXALIASWARN (iswxdigit
);
399 #if @GNULIB_ISWBLANK@
400 # if @REPLACE_ISWCNTRL@ || @REPLACE_ISWBLANK@
401 _GL_CXXALIAS_RPL (iswblank
, int, (wint_t wc
));
403 _GL_CXXALIAS_SYS (iswblank
, int, (wint_t wc
));
405 _GL_CXXALIASWARN (iswblank
);
409 # if !GNULIB_defined_wctype_t
410 typedef void * wctype_t;
411 # define GNULIB_defined_wctype_t 1
415 /* Get a descriptor for a wide character property. */
417 # if !@HAVE_WCTYPE_T@
418 _GL_FUNCDECL_SYS (wctype
, wctype_t, (const char *name
));
420 _GL_CXXALIAS_SYS (wctype
, wctype_t, (const char *name
));
421 _GL_CXXALIASWARN (wctype
);
422 #elif defined GNULIB_POSIXCHECK
424 # if HAVE_RAW_DECL_WCTYPE
425 _GL_WARN_ON_USE (wctype
, "wctype is unportable - "
426 "use gnulib module wctype for portability");
430 /* Test whether a wide character has a given property.
431 The argument WC must be either a wchar_t value or WEOF.
432 The argument DESC must have been returned by the wctype() function. */
433 #if @GNULIB_ISWCTYPE@
434 # if !@HAVE_WCTYPE_T@
435 _GL_FUNCDECL_SYS (iswctype
, int, (wint_t wc
, wctype_t desc
));
437 _GL_CXXALIAS_SYS (iswctype
, int, (wint_t wc
, wctype_t desc
));
438 _GL_CXXALIASWARN (iswctype
);
439 #elif defined GNULIB_POSIXCHECK
441 # if HAVE_RAW_DECL_ISWCTYPE
442 _GL_WARN_ON_USE (iswctype
, "iswctype is unportable - "
443 "use gnulib module iswctype for portability");
447 #if @REPLACE_TOWLOWER@ || defined __MINGW32__
448 _GL_CXXALIAS_RPL (towlower
, wint_t, (wint_t wc
));
449 _GL_CXXALIAS_RPL (towupper
, wint_t, (wint_t wc
));
451 _GL_CXXALIAS_SYS (towlower
, wint_t, (wint_t wc
));
452 _GL_CXXALIAS_SYS (towupper
, wint_t, (wint_t wc
));
454 _GL_CXXALIASWARN (towlower
);
455 _GL_CXXALIASWARN (towupper
);
457 #if !@HAVE_WCTRANS_T@
458 # if !GNULIB_defined_wctrans_t
459 typedef void * wctrans_t;
460 # define GNULIB_defined_wctrans_t 1
464 /* Get a descriptor for a wide character case conversion. */
466 # if !@HAVE_WCTRANS_T@
467 _GL_FUNCDECL_SYS (wctrans
, wctrans_t, (const char *name
));
469 _GL_CXXALIAS_SYS (wctrans
, wctrans_t, (const char *name
));
470 _GL_CXXALIASWARN (wctrans
);
471 #elif defined GNULIB_POSIXCHECK
473 # if HAVE_RAW_DECL_WCTRANS
474 _GL_WARN_ON_USE (wctrans
, "wctrans is unportable - "
475 "use gnulib module wctrans for portability");
479 /* Perform a given case conversion on a wide character.
480 The argument WC must be either a wchar_t value or WEOF.
481 The argument DESC must have been returned by the wctrans() function. */
482 #if @GNULIB_TOWCTRANS@
483 # if !@HAVE_WCTRANS_T@
484 _GL_FUNCDECL_SYS (towctrans
, wint_t, (wint_t wc
, wctrans_t desc
));
486 _GL_CXXALIAS_SYS (towctrans
, wint_t, (wint_t wc
, wctrans_t desc
));
487 _GL_CXXALIASWARN (towctrans
);
488 #elif defined GNULIB_POSIXCHECK
490 # if HAVE_RAW_DECL_TOWCTRANS
491 _GL_WARN_ON_USE (towctrans
, "towctrans is unportable - "
492 "use gnulib module towctrans for portability");
497 #endif /* _@GUARD_PREFIX@_WCTYPE_H */
498 #endif /* _@GUARD_PREFIX@_WCTYPE_H */
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