| /* Copyright (C) 1996-2022 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 Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <https://www.gnu.org/licenses/>. */ |
| |
| /* |
| * ISO C99 Standard: 7.25 |
| * Wide character classification and mapping utilities <wctype.h> |
| */ |
| |
| #ifndef _BITS_WCTYPE_WCHAR_H |
| #define _BITS_WCTYPE_WCHAR_H 1 |
| |
| #if !defined _WCTYPE_H && !defined _WCHAR_H |
| #error "Never include <bits/wctype-wchar.h> directly; include <wctype.h> or <wchar.h> instead." |
| #endif |
| |
| #include <bits/types.h> |
| #include <bits/types/wint_t.h> |
| |
| /* The definitions in this header are specified to appear in <wctype.h> |
| in ISO C99, but in <wchar.h> in Unix98. _GNU_SOURCE follows C99. */ |
| |
| /* Scalar type that can hold values which represent locale-specific |
| character classifications. */ |
| typedef unsigned long int wctype_t; |
| |
| # ifndef _ISwbit |
| /* 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 <bits/endian.h> |
| # if __BYTE_ORDER == __BIG_ENDIAN |
| # define _ISwbit(bit) (1 << (bit)) |
| # else /* __BYTE_ORDER == __LITTLE_ENDIAN */ |
| # define _ISwbit(bit) \ |
| ((bit) < 8 ? (int) ((1UL << (bit)) << 24) \ |
| : ((bit) < 16 ? (int) ((1UL << (bit)) << 8) \ |
| : ((bit) < 24 ? (int) ((1UL << (bit)) >> 8) \ |
| : (int) ((1UL << (bit)) >> 24)))) |
| # endif |
| |
| enum |
| { |
| __ISwupper = 0, /* UPPERCASE. */ |
| __ISwlower = 1, /* lowercase. */ |
| __ISwalpha = 2, /* Alphabetic. */ |
| __ISwdigit = 3, /* Numeric. */ |
| __ISwxdigit = 4, /* Hexadecimal numeric. */ |
| __ISwspace = 5, /* Whitespace. */ |
| __ISwprint = 6, /* Printing. */ |
| __ISwgraph = 7, /* Graphical. */ |
| __ISwblank = 8, /* Blank (usually SPC and TAB). */ |
| __ISwcntrl = 9, /* Control character. */ |
| __ISwpunct = 10, /* Punctuation. */ |
| __ISwalnum = 11, /* Alphanumeric. */ |
| |
| _ISwupper = _ISwbit (__ISwupper), /* UPPERCASE. */ |
| _ISwlower = _ISwbit (__ISwlower), /* lowercase. */ |
| _ISwalpha = _ISwbit (__ISwalpha), /* Alphabetic. */ |
| _ISwdigit = _ISwbit (__ISwdigit), /* Numeric. */ |
| _ISwxdigit = _ISwbit (__ISwxdigit), /* Hexadecimal numeric. */ |
| _ISwspace = _ISwbit (__ISwspace), /* Whitespace. */ |
| _ISwprint = _ISwbit (__ISwprint), /* Printing. */ |
| _ISwgraph = _ISwbit (__ISwgraph), /* Graphical. */ |
| _ISwblank = _ISwbit (__ISwblank), /* Blank (usually SPC and TAB). */ |
| _ISwcntrl = _ISwbit (__ISwcntrl), /* Control character. */ |
| _ISwpunct = _ISwbit (__ISwpunct), /* Punctuation. */ |
| _ISwalnum = _ISwbit (__ISwalnum) /* Alphanumeric. */ |
| }; |
| # endif /* Not _ISwbit */ |
| |
| |
| __BEGIN_DECLS |
| |
| /* |
| * Wide-character classification functions: 7.15.2.1. |
| */ |
| |
| /* Test for any wide character for which `iswalpha' or `iswdigit' is |
| true. */ |
| extern int iswalnum (wint_t __wc) __THROW; |
| |
| /* 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 (wint_t __wc) __THROW; |
| |
| /* Test for any control wide character. */ |
| extern int iswcntrl (wint_t __wc) __THROW; |
| |
| /* Test for any wide character that corresponds to a decimal-digit |
| character. */ |
| extern int iswdigit (wint_t __wc) __THROW; |
| |
| /* Test for any wide character for which `iswprint' is true and |
| `iswspace' is false. */ |
| extern int iswgraph (wint_t __wc) __THROW; |
| |
| /* 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 (wint_t __wc) __THROW; |
| |
| /* Test for any printing wide character. */ |
| extern int iswprint (wint_t __wc) __THROW; |
| |
| /* 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 (wint_t __wc) __THROW; |
| |
| /* 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 (wint_t __wc) __THROW; |
| |
| /* 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 (wint_t __wc) __THROW; |
| |
| /* 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 (wint_t __wc) __THROW; |
| |
| /* Test for any wide character that corresponds to a standard blank |
| wide character or a locale-specific set of wide characters for |
| which `iswalnum' is false. */ |
| # ifdef __USE_ISOC99 |
| extern int iswblank (wint_t __wc) __THROW; |
| # endif |
| |
| /* |
| * 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 (const char *__property) __THROW; |
| |
| /* Determine whether the wide-character WC has the property described by |
| DESC. */ |
| extern int iswctype (wint_t __wc, wctype_t __desc) __THROW; |
| |
| /* |
| * Wide-character case-mapping functions: 7.15.3.1. |
| */ |
| |
| /* Converts an uppercase letter to the corresponding lowercase letter. */ |
| extern wint_t towlower (wint_t __wc) __THROW; |
| |
| /* Converts an lowercase letter to the corresponding uppercase letter. */ |
| extern wint_t towupper (wint_t __wc) __THROW; |
| |
| __END_DECLS |
| |
| #endif /* bits/wctype-wchar.h. */ |