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Diffstat (limited to 'wctype/wctype.h')
| -rw-r--r-- | wctype/wctype.h | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/wctype/wctype.h b/wctype/wctype.h new file mode 100644 index 0000000..7e90e2b --- /dev/null +++ b/wctype/wctype.h @@ -0,0 +1,215 @@ +/* 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 + +/* FIXME: should this go into <stddef.h>??? */ +#if 0 +#define __need_wint_t +#include <stddef.h> +#else +/* 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. */ +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. */ +#if 0 +typedef unsigned long int wctype_t; +#else +/* For compatibility reasons we have to use shorts for now. */ +typedef unsigned short int wctype_t; +#endif + + +/* 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. */ +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. */ +int iswalpha __P ((wint_t __wc)); + +/* Test for any control wide character. */ +int iswcntrl __P ((wint_t __wc)); + +/* Test for any wide character that corresponds to a decimal-digit + character. */ +int iswdigit __P ((wint_t __wc)); + +/* Test for any wide character for which `iswprint' is true and + `iswspace' is false. */ +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. */ +int iswlower __P ((wint_t __wc)); + +/* Test for any printing wide character. */ +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. */ +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. */ +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. */ +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. */ +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. */ +wctype_t wctype __P ((__const char *__property)); + +/* Determine whether the wide-character WC has the property described by + DESC. */ +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. */ +wint_t towlower __P ((wint_t __wc)); + +/* Converts an lowercase letter to the corresponding uppercase letter. */ +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. */ +wctrans_t wctrans __P ((__const char *__property)); + +/* Map the wide character WC using the mapping described by DESC. */ +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 */ |