1 /* A substitute for ISO C99 <wctype.h>, for platforms that lack it.
3 Copyright (C) 2006-2009 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 2, 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, write to the Free Software Foundation,
17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
19 /* Written by Bruno Haible and Paul Eggert. */
22 * ISO C 99 <wctype.h> for platforms that lack it.
23 * <http://www.opengroup.org/susv3xbd/wctype.h.html>
25 * iswctype, towctrans, towlower, towupper, wctrans, wctype,
26 * wctrans_t, and wctype_t are not yet implemented.
32 @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@
57 /* Define wint_t. (Also done in wchar.in.h.) */
58 #if !@HAVE_WINT_T@ && !defined wint_t
65 /* FreeBSD 4.4 to 4.11 has <wctype.h> but lacks the functions.
66 Linux libc5 has <wctype.h> and the functions but they are broken.
67 Assume all 12 functions are implemented the same way, or not at all. */
68 #if ! @HAVE_ISWCNTRL@ || @REPLACE_ISWCNTRL@
70 /* IRIX 5.3 has macros but no functions, its isw* macros refer to an
71 undefined variable _ctmp_ and to <ctype.h> macros like _P, and they
72 refer to system functions like _iswctype that are not in the
73 standard C library. Rather than try to get ancient buggy
74 implementations like this to work, just disable them. */
90 /* Linux libc5 has <wctype.h> and the functions but they are broken. */
91 # if @REPLACE_ISWCNTRL@
92 # define iswalnum rpl_iswalnum
93 # define iswalpha rpl_iswalpha
94 # define iswblank rpl_iswblank
95 # define iswcntrl rpl_iswcntrl
96 # define iswdigit rpl_iswdigit
97 # define iswgraph rpl_iswgraph
98 # define iswlower rpl_iswlower
99 # define iswprint rpl_iswprint
100 # define iswpunct rpl_iswpunct
101 # define iswspace rpl_iswspace
102 # define iswupper rpl_iswupper
103 # define iswxdigit rpl_iswxdigit
104 # define towlower rpl_towlower
105 # define towupper rpl_towupper
111 return ((wc >= '0' && wc <= '9')
112 || ((wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'Z'));
118 return (wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'Z';
124 return wc == ' ' || wc == '\t';
130 return (wc & ~0x1f) == 0 || wc == 0x7f;
136 return wc >= '0' && wc <= '9';
142 return wc >= '!' && wc <= '~';
148 return wc >= 'a' && wc <= 'z';
154 return wc >= ' ' && wc <= '~';
160 return (wc >= '!' && wc <= '~'
161 && !((wc >= '0' && wc <= '9')
162 || ((wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'Z')));
168 return (wc == ' ' || wc == '\t'
169 || wc == '\n' || wc == '\v' || wc == '\f' || wc == '\r');
175 return wc >= 'A' && wc <= 'Z';
179 iswxdigit (wint_t wc)
181 return ((wc >= '0' && wc <= '9')
182 || ((wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'F'));
188 return (wc >= 'A' && wc <= 'Z' ? wc - 'A' + 'a' : wc);
194 return (wc >= 'a' && wc <= 'z' ? wc - 'a' + 'A' : wc);
197 # endif /* ! HAVE_ISWCNTRL */
199 #endif /* _GL_WCTYPE_H */
200 #endif /* _GL_WCTYPE_H */