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/* A substitute for ISO C99 <wctype.h>, for platforms that lack it.
Copyright (C) 2006-2008 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
/* Written by Bruno Haible and Paul Eggert. */
/*
* ISO C 99 <wctype.h> for platforms that lack it.
* <http://www.opengroup.org/susv3xbd/wctype.h.html>
*
* iswctype, towctrans, towlower, towupper, wctrans, wctype,
* wctrans_t, and wctype_t are not yet implemented.
*/
#ifndef _GL_WCTYPE_H
#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
#endif
#if @HAVE_WINT_T@
/* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>.
Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
<wchar.h>.
BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
included before <wchar.h>. */
# include <stddef.h>
# include <stdio.h>
# include <time.h>
# include <wchar.h>
#endif
/* Include the original <wctype.h> if it exists.
BeOS 5 has the functions but no <wctype.h>. */
/* The include_next requires a split double-inclusion guard. */
#if @HAVE_WCTYPE_H@
# @INCLUDE_NEXT@ @NEXT_WCTYPE_H@
#endif
#ifndef _GL_WCTYPE_H
#define _GL_WCTYPE_H
/* Define wint_t. (Also done in wchar.in.h.) */
#if !@HAVE_WINT_T@ && !defined wint_t
# define wint_t int
# ifndef WEOF
# define WEOF -1
# endif
#endif
/* FreeBSD 4.4 to 4.11 has <wctype.h> but lacks the functions.
Linux libc5 has <wctype.h> and the functions but they are broken.
Assume all 12 functions are implemented the same way, or not at all. */
#if ! @HAVE_ISWCNTRL@ || @REPLACE_ISWCNTRL@
/* IRIX 5.3 has macros but no functions, its isw* macros refer to an
undefined variable _ctmp_ and to <ctype.h> macros like _P, and they
refer to system functions like _iswctype that are not in the
standard C library. Rather than try to get ancient buggy
implementations like this to work, just disable them. */
# undef iswalnum
# undef iswalpha
# undef iswblank
# undef iswcntrl
# undef iswdigit
# undef iswgraph
# undef iswlower
# undef iswprint
# undef iswpunct
# undef iswspace
# undef iswupper
# undef iswxdigit
/* Linux libc5 has <wctype.h> and the functions but they are broken. */
# if @REPLACE_ISWCNTRL@
# define iswalnum rpl_iswalnum
# define iswalpha rpl_iswalpha
# define iswblank rpl_iswblank
# define iswcntrl rpl_iswcntrl
# define iswdigit rpl_iswdigit
# define iswgraph rpl_iswgraph
# define iswlower rpl_iswlower
# define iswprint rpl_iswprint
# define iswpunct rpl_iswpunct
# define iswspace rpl_iswspace
# define iswupper rpl_iswupper
# define iswxdigit rpl_iswxdigit
# endif
static inline int
iswalnum (wint_t wc)
{
return ((wc >= '0' && wc <= '9')
|| ((wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'Z'));
}
static inline int
iswalpha (wint_t wc)
{
return (wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'Z';
}
static inline int
iswblank (wint_t wc)
{
return wc == ' ' || wc == '\t';
}
static inline int
iswcntrl (wint_t wc)
{
return (wc & ~0x1f) == 0 || wc == 0x7f;
}
static inline int
iswdigit (wint_t wc)
{
return wc >= '0' && wc <= '9';
}
static inline int
iswgraph (wint_t wc)
{
return wc >= '!' && wc <= '~';
}
static inline int
iswlower (wint_t wc)
{
return wc >= 'a' && wc <= 'z';
}
static inline int
iswprint (wint_t wc)
{
return wc >= ' ' && wc <= '~';
}
static inline int
iswpunct (wint_t wc)
{
return (wc >= '!' && wc <= '~'
&& !((wc >= '0' && wc <= '9')
|| ((wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'Z')));
}
static inline int
iswspace (wint_t wc)
{
return (wc == ' ' || wc == '\t'
|| wc == '\n' || wc == '\v' || wc == '\f' || wc == '\r');
}
static inline int
iswupper (wint_t wc)
{
return wc >= 'A' && wc <= 'Z';
}
static inline int
iswxdigit (wint_t wc)
{
return ((wc >= '0' && wc <= '9')
|| ((wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'F'));
}
# endif /* ! HAVE_ISWCNTRL */
#endif /* _GL_WCTYPE_H */
#endif /* _GL_WCTYPE_H */
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