1 /* A substitute for ISO C99 <wctype.h>, for platforms that lack it.
3 Copyright (C) 2006-2015 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 /* mingw has declarations of towupper and towlower in <ctype.h> as
48 well <wctype.h>. Include <ctype.h> in advance to avoid rpl_ prefix
49 being added to the declarations. */
54 /* Include the original <wctype.h> if it exists.
55 BeOS 5 has the functions but no <wctype.h>. */
56 /* The include_next requires a split double-inclusion guard. */
58 # @INCLUDE_NEXT@ @NEXT_WCTYPE_H@
61 #ifndef _@GUARD_PREFIX@_WCTYPE_H
62 #define _@GUARD_PREFIX@_WCTYPE_H
64 #ifndef _GL_INLINE_HEADER_BEGIN
65 #error "Please include config.h first."
67 _GL_INLINE_HEADER_BEGIN
68 #ifndef _GL_WCTYPE_INLINE
69 # define _GL_WCTYPE_INLINE _GL_INLINE
72 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
74 /* The definition of _GL_WARN_ON_USE is copied here. */
76 /* Solaris 2.6 <wctype.h> includes <widec.h> which includes <euc.h> which
77 #defines a number of identifiers in the application namespace. Revert
89 /* Define wint_t and WEOF. (Also done in wchar.in.h.) */
90 #if !@HAVE_WINT_T@ && !defined wint_t
96 /* MSVC defines wint_t as 'unsigned short' in <crtdefs.h>.
97 This is too small: ISO C 99 section 7.24.1.(2) says that wint_t must be
98 "unchanged by default argument promotions". Override it. */
100 # if !GNULIB_defined_wint_t
101 # include <crtdefs.h>
102 typedef unsigned int rpl_wint_t;
104 # define wint_t rpl_wint_t
105 # define GNULIB_defined_wint_t 1
109 # define WEOF ((wint_t) -1)
114 #if !GNULIB_defined_wctype_functions
116 /* FreeBSD 4.4 to 4.11 has <wctype.h> but lacks the functions.
117 Linux libc5 has <wctype.h> and the functions but they are broken.
118 Assume all 11 functions (all isw* except iswblank) are implemented the
119 same way, or not at all. */
120 # if ! @HAVE_ISWCNTRL@ || @REPLACE_ISWCNTRL@
122 /* IRIX 5.3 has macros but no functions, its isw* macros refer to an
123 undefined variable _ctmp_ and to <ctype.h> macros like _P, and they
124 refer to system functions like _iswctype that are not in the
125 standard C library. Rather than try to get ancient buggy
126 implementations like this to work, just disable them. */
142 /* Linux libc5 has <wctype.h> and the functions but they are broken. */
143 # if @REPLACE_ISWCNTRL@
144 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
145 # define iswalnum rpl_iswalnum
146 # define iswalpha rpl_iswalpha
147 # define iswblank rpl_iswblank
148 # define iswcntrl rpl_iswcntrl
149 # define iswdigit rpl_iswdigit
150 # define iswgraph rpl_iswgraph
151 # define iswlower rpl_iswlower
152 # define iswprint rpl_iswprint
153 # define iswpunct rpl_iswpunct
154 # define iswspace rpl_iswspace
155 # define iswupper rpl_iswupper
156 # define iswxdigit rpl_iswxdigit
159 # if @REPLACE_TOWLOWER@
160 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
161 # define towlower rpl_towlower
162 # define towupper rpl_towupper
166 _GL_WCTYPE_INLINE int
167 # if @REPLACE_ISWCNTRL@
174 return ((wc >= '0' && wc <= '9')
175 || ((wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'Z'));
178 _GL_WCTYPE_INLINE int
179 # if @REPLACE_ISWCNTRL@
186 return (wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'Z';
189 _GL_WCTYPE_INLINE int
190 # if @REPLACE_ISWCNTRL@
197 return wc == ' ' || wc == '\t';
200 _GL_WCTYPE_INLINE int
201 # if @REPLACE_ISWCNTRL@
208 return (wc & ~0x1f) == 0 || wc == 0x7f;
211 _GL_WCTYPE_INLINE int
212 # if @REPLACE_ISWCNTRL@
219 return wc >= '0' && wc <= '9';
222 _GL_WCTYPE_INLINE int
223 # if @REPLACE_ISWCNTRL@
230 return wc >= '!' && wc <= '~';
233 _GL_WCTYPE_INLINE int
234 # if @REPLACE_ISWCNTRL@
241 return wc >= 'a' && wc <= 'z';
244 _GL_WCTYPE_INLINE int
245 # if @REPLACE_ISWCNTRL@
252 return wc >= ' ' && wc <= '~';
255 _GL_WCTYPE_INLINE int
256 # if @REPLACE_ISWCNTRL@
263 return (wc >= '!' && wc <= '~'
264 && !((wc >= '0' && wc <= '9')
265 || ((wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'Z')));
268 _GL_WCTYPE_INLINE int
269 # if @REPLACE_ISWCNTRL@
276 return (wc == ' ' || wc == '\t'
277 || wc == '\n' || wc == '\v' || wc == '\f' || wc == '\r');
280 _GL_WCTYPE_INLINE int
281 # if @REPLACE_ISWCNTRL@
288 return wc >= 'A' && wc <= 'Z';
291 _GL_WCTYPE_INLINE int
292 # if @REPLACE_ISWCNTRL@
299 return ((wc >= '0' && wc <= '9')
300 || ((wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'F'));
303 _GL_WCTYPE_INLINE wint_t
304 # if @REPLACE_TOWLOWER@
311 return (wc >= 'A' && wc <= 'Z' ? wc - 'A' + 'a' : wc);
314 _GL_WCTYPE_INLINE wint_t
315 # if @REPLACE_TOWLOWER@
322 return (wc >= 'a' && wc <= 'z' ? wc - 'a' + 'A' : wc);
325 # elif @GNULIB_ISWBLANK@ && (! @HAVE_ISWBLANK@ || @REPLACE_ISWBLANK@)
326 /* Only the iswblank function is missing. */
328 # if @REPLACE_ISWBLANK@
329 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
330 # define iswblank rpl_iswblank
332 _GL_FUNCDECL_RPL (iswblank, int, (wint_t wc));
334 _GL_FUNCDECL_SYS (iswblank, int, (wint_t wc));
339 # if defined __MINGW32__
341 /* On native Windows, wchar_t is uint16_t, and wint_t is uint32_t.
342 The functions towlower and towupper are implemented in the MSVCRT library
343 to take a wchar_t argument and return a wchar_t result. mingw declares
344 these functions to take a wint_t argument and return a wint_t result.
346 1. When the user passes an argument outside the range 0x0000..0xFFFF, the
347 function will look only at the lower 16 bits. This is allowed according
349 2. The return value is returned in the lower 16 bits of the result register.
350 The upper 16 bits are random: whatever happened to be in that part of the
351 result register. We need to fix this by adding a zero-extend from
352 wchar_t to wint_t after the call. */
354 _GL_WCTYPE_INLINE wint_t
355 rpl_towlower (wint_t wc)
357 return (wint_t) (wchar_t) towlower (wc);
359 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
360 # define towlower rpl_towlower
363 _GL_WCTYPE_INLINE wint_t
364 rpl_towupper (wint_t wc)
366 return (wint_t) (wchar_t) towupper (wc);
368 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
369 # define towupper rpl_towupper
372 # endif /* __MINGW32__ */
374 # define GNULIB_defined_wctype_functions 1
377 #if @REPLACE_ISWCNTRL@
378 _GL_CXXALIAS_RPL (iswalnum, int, (wint_t wc));
379 _GL_CXXALIAS_RPL (iswalpha, int, (wint_t wc));
380 _GL_CXXALIAS_RPL (iswcntrl, int, (wint_t wc));
381 _GL_CXXALIAS_RPL (iswdigit, int, (wint_t wc));
382 _GL_CXXALIAS_RPL (iswgraph, int, (wint_t wc));
383 _GL_CXXALIAS_RPL (iswlower, int, (wint_t wc));
384 _GL_CXXALIAS_RPL (iswprint, int, (wint_t wc));
385 _GL_CXXALIAS_RPL (iswpunct, int, (wint_t wc));
386 _GL_CXXALIAS_RPL (iswspace, int, (wint_t wc));
387 _GL_CXXALIAS_RPL (iswupper, int, (wint_t wc));
388 _GL_CXXALIAS_RPL (iswxdigit, int, (wint_t wc));
390 _GL_CXXALIAS_SYS (iswalnum, int, (wint_t wc));
391 _GL_CXXALIAS_SYS (iswalpha, int, (wint_t wc));
392 _GL_CXXALIAS_SYS (iswcntrl, int, (wint_t wc));
393 _GL_CXXALIAS_SYS (iswdigit, int, (wint_t wc));
394 _GL_CXXALIAS_SYS (iswgraph, int, (wint_t wc));
395 _GL_CXXALIAS_SYS (iswlower, int, (wint_t wc));
396 _GL_CXXALIAS_SYS (iswprint, int, (wint_t wc));
397 _GL_CXXALIAS_SYS (iswpunct, int, (wint_t wc));
398 _GL_CXXALIAS_SYS (iswspace, int, (wint_t wc));
399 _GL_CXXALIAS_SYS (iswupper, int, (wint_t wc));
400 _GL_CXXALIAS_SYS (iswxdigit, int, (wint_t wc));
402 _GL_CXXALIASWARN (iswalnum);
403 _GL_CXXALIASWARN (iswalpha);
404 _GL_CXXALIASWARN (iswcntrl);
405 _GL_CXXALIASWARN (iswdigit);
406 _GL_CXXALIASWARN (iswgraph);
407 _GL_CXXALIASWARN (iswlower);
408 _GL_CXXALIASWARN (iswprint);
409 _GL_CXXALIASWARN (iswpunct);
410 _GL_CXXALIASWARN (iswspace);
411 _GL_CXXALIASWARN (iswupper);
412 _GL_CXXALIASWARN (iswxdigit);
414 #if @GNULIB_ISWBLANK@
415 # if @REPLACE_ISWCNTRL@ || @REPLACE_ISWBLANK@
416 _GL_CXXALIAS_RPL (iswblank, int, (wint_t wc));
418 _GL_CXXALIAS_SYS (iswblank, int, (wint_t wc));
420 _GL_CXXALIASWARN (iswblank);
424 # if !GNULIB_defined_wctype_t
425 typedef void * wctype_t;
426 # define GNULIB_defined_wctype_t 1
430 /* Get a descriptor for a wide character property. */
432 # if !@HAVE_WCTYPE_T@
433 _GL_FUNCDECL_SYS (wctype, wctype_t, (const char *name));
435 _GL_CXXALIAS_SYS (wctype, wctype_t, (const char *name));
436 _GL_CXXALIASWARN (wctype);
437 #elif defined GNULIB_POSIXCHECK
439 # if HAVE_RAW_DECL_WCTYPE
440 _GL_WARN_ON_USE (wctype, "wctype is unportable - "
441 "use gnulib module wctype for portability");
445 /* Test whether a wide character has a given property.
446 The argument WC must be either a wchar_t value or WEOF.
447 The argument DESC must have been returned by the wctype() function. */
448 #if @GNULIB_ISWCTYPE@
449 # if !@HAVE_WCTYPE_T@
450 _GL_FUNCDECL_SYS (iswctype, int, (wint_t wc, wctype_t desc));
452 _GL_CXXALIAS_SYS (iswctype, int, (wint_t wc, wctype_t desc));
453 _GL_CXXALIASWARN (iswctype);
454 #elif defined GNULIB_POSIXCHECK
456 # if HAVE_RAW_DECL_ISWCTYPE
457 _GL_WARN_ON_USE (iswctype, "iswctype is unportable - "
458 "use gnulib module iswctype for portability");
462 #if @REPLACE_TOWLOWER@ || defined __MINGW32__
463 _GL_CXXALIAS_RPL (towlower, wint_t, (wint_t wc));
464 _GL_CXXALIAS_RPL (towupper, wint_t, (wint_t wc));
466 _GL_CXXALIAS_SYS (towlower, wint_t, (wint_t wc));
467 _GL_CXXALIAS_SYS (towupper, wint_t, (wint_t wc));
469 _GL_CXXALIASWARN (towlower);
470 _GL_CXXALIASWARN (towupper);
472 #if !@HAVE_WCTRANS_T@
473 # if !GNULIB_defined_wctrans_t
474 typedef void * wctrans_t;
475 # define GNULIB_defined_wctrans_t 1
479 /* Get a descriptor for a wide character case conversion. */
481 # if !@HAVE_WCTRANS_T@
482 _GL_FUNCDECL_SYS (wctrans, wctrans_t, (const char *name));
484 _GL_CXXALIAS_SYS (wctrans, wctrans_t, (const char *name));
485 _GL_CXXALIASWARN (wctrans);
486 #elif defined GNULIB_POSIXCHECK
488 # if HAVE_RAW_DECL_WCTRANS
489 _GL_WARN_ON_USE (wctrans, "wctrans is unportable - "
490 "use gnulib module wctrans for portability");
494 /* Perform a given case conversion on a wide character.
495 The argument WC must be either a wchar_t value or WEOF.
496 The argument DESC must have been returned by the wctrans() function. */
497 #if @GNULIB_TOWCTRANS@
498 # if !@HAVE_WCTRANS_T@
499 _GL_FUNCDECL_SYS (towctrans, wint_t, (wint_t wc, wctrans_t desc));
501 _GL_CXXALIAS_SYS (towctrans, wint_t, (wint_t wc, wctrans_t desc));
502 _GL_CXXALIASWARN (towctrans);
503 #elif defined GNULIB_POSIXCHECK
505 # if HAVE_RAW_DECL_TOWCTRANS
506 _GL_WARN_ON_USE (towctrans, "towctrans is unportable - "
507 "use gnulib module towctrans for portability");
511 _GL_INLINE_HEADER_END
513 #endif /* _@GUARD_PREFIX@_WCTYPE_H */
514 #endif /* _@GUARD_PREFIX@_WCTYPE_H */