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/* Copyright (C) 1996 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/*
* ISO/IEC 9899:1990/Amendment 1:1995 7.15:
* Wide-character classification and mapping utilities <wctype.h>
*/
#ifndef _WCTYPE_H
#define _WCTYPE_H 1
#include <features.h>
__BEGIN_DECLS
/* We try to get wint_t from <stddef.h>, but not all GCC versions define it
there. So define it ourselves if it remains undefined. */
#define __need_wint_t
#include <stddef.h>
#ifndef _WINT_T
/* Integral type unchanged by default argument promotions that can
hold any value corresponding to members of the extended character
set, as well as at least one value that does not correspond to any
member of the extended character set. */
#define _WINT_T
typedef unsigned int wint_t;
#endif
/* Scalar type that can hold values which represent locale-specific
character mappings. */
typedef __const unsigned int *wctrans_t;
/* Scalar type that can hold values which represent locale-specific
character classifications. */
typedef unsigned long int wctype_t;
/* Constant expression of type `wint_t' whose value does not correspond
to any member of the extended character set. */
#ifndef WEOF
#define WEOF (0xffffffffu)
#endif
#ifndef _ISbit
/* These are all the characteristics of characters.
If there get to be more than 16 distinct characteristics,
many things must be changed that use `unsigned short int's.
The characteristics are stored always in network byte order (big
endian). We define the bit value interpretations here dependent on the
machine's byte order. */
#include <endian.h>
#if __BYTE_ORDER == __BIG_ENDIAN
#define _ISbit(bit) (1 << bit)
#else /* __BYTE_ORDER == __LITTLE_ENDIAN */
#define _ISbit(bit) (bit < 8 ? ((1 << bit) << 8) : ((1 << bit) >> 8))
#endif
enum
{
_ISupper = _ISbit (0), /* UPPERCASE. */
_ISlower = _ISbit (1), /* lowercase. */
_ISalpha = _ISbit (2), /* Alphabetic. */
_ISdigit = _ISbit (3), /* Numeric. */
_ISxdigit = _ISbit (4), /* Hexadecimal numeric. */
_ISspace = _ISbit (5), /* Whitespace. */
_ISprint = _ISbit (6), /* Printing. */
_ISgraph = _ISbit (7), /* Graphical. */
_ISblank = _ISbit (8), /* Blank (usually SPC and TAB). */
_IScntrl = _ISbit (9), /* Control character. */
_ISpunct = _ISbit (10), /* Punctuation. */
_ISalnum = _ISbit (11) /* Alphanumeric. */
};
#endif /* Not _ISbit */
/*
* Wide-character classification functions: 7.15.2.1.
*/
/* Test for any wide character for which `iswalpha' or `iswdigit' is
true. */
extern int iswalnum __P ((wint_t __wc));
/* Test for any wide character for which `iswupper' or 'iswlower' is
true, or any wide character that is one of a locale-specific set of
wide-characters for which none of `iswcntrl', `iswdigit',
`iswpunct', or `iswspace' is true. */
extern int iswalpha __P ((wint_t __wc));
/* Test for any control wide character. */
extern int iswcntrl __P ((wint_t __wc));
/* Test for any wide character that corresponds to a decimal-digit
character. */
extern int iswdigit __P ((wint_t __wc));
/* Test for any wide character for which `iswprint' is true and
`iswspace' is false. */
extern int iswgraph __P ((wint_t __wc));
/* Test for any wide character that corresponds to a lowercase letter
or is one of a locale-specific set of wide characters for which
none of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true. */
extern int iswlower __P ((wint_t __wc));
/* Test for any printing wide character. */
extern int iswprint __P ((wint_t __wc));
/* Test for any printing wide character that is one of a
locale-specific et of wide characters for which neither `iswspace'
nor `iswalnum' is true. */
extern int iswpunct __P ((wint_t __wc));
/* Test for any wide character that corresponds to a locale-specific
set of wide characters for which none of `iswalnum', `iswgraph', or
`iswpunct' is true. */
extern int iswspace __P ((wint_t __wc));
/* Test for any wide character that corresponds to an uppercase letter
or is one of a locale-specific set of wide character for which none
of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true. */
extern int iswupper __P ((wint_t __wc));
/* Test for any wide character that corresponds to a hexadecimal-digit
character equivalent to that performed be the functions described
in the previous subclause. */
extern int iswxdigit __P ((wint_t __wc));
/*
* Extensible wide-character classification functions: 7.15.2.2.
*/
/* Construct value that describes a class of wide characters identified
by the string argument PROPERTY. */
extern wctype_t wctype __P ((__const char *__property));
/* Determine whether the wide-character WC has the property described by
DESC. */
extern int iswctype __P ((wint_t __wc, wctype_t __desc));
/*
* Wide-character case-mapping functions: 7.15.3.1.
*/
/* Converts an uppercase letter to the corresponding lowercase letter. */
extern wint_t towlower __P ((wint_t __wc));
/* Converts an lowercase letter to the corresponding uppercase letter. */
extern wint_t towupper __P ((wint_t __wc));
/*
* Extensible wide-character mapping functions: 7.15.3.2.
*/
/* Construct value that describes a mapping between wide characters
identified by the string argument PROPERTY. */
extern wctrans_t wctrans __P ((__const char *__property));
/* Map the wide character WC using the mapping described by DESC. */
extern wint_t towctrans __P ((wint_t __wc, wctrans_t __desc));
#ifndef __NO_WCTYPE
#define iswalnum(wc) iswctype ((wc), _ISalnum)
#define iswalpha(wc) iswctype ((wc), _ISalpha)
#define iswcntrl(wc) iswctype ((wc), _IScntrl)
#define iswdigit(wc) iswctype ((wc), _ISdigit)
#define iswlower(wc) iswctype ((wc), _ISlower)
#define iswgraph(wc) iswctype ((wc), _ISgraph)
#define iswprint(wc) iswctype ((wc), _ISprint)
#define iswpunct(wc) iswctype ((wc), _ISpunct)
#define iswspace(wc) iswctype ((wc), _ISspace)
#define iswupper(wc) iswctype ((wc), _ISupper)
#define iswxdigit(wc) iswctype ((wc), _ISxdigit)
#ifdef __USE_GNU
#define iswblank(wc) iswctype ((wc), _ISblank)
#endif
/* Pointer to conversion tables. */
extern __const int *__ctype_tolower; /* Case conversions. */
extern __const int *__ctype_toupper; /* Case conversions. */
#define towlower(wc) towctrans (wc, __ctype_tolower)
#define towupper(wc) towctrans (wc, __ctype_toupper)
#endif /* Not __NO_WCTYPE. */
__END_DECLS
#endif /* wctype.h */
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