mingw/include/ctype.h

   1 /*
   2  * ctype.h
   3  * This file has no copyright assigned and is placed in the Public Domain.
   4  * This file is a part of the mingw-runtime package.
   5  * No warranty is given; refer to the file DISCLAIMER within the package.
   6  *
   7  * Functions for testing character types and converting characters.
   8  *
   9  */
  10
  11 #ifndef _CTYPE_H_
  12 #define _CTYPE_H_
  13
  14 /* All the headers include this file. */
  15 #include <_mingw.h>
  16
  17 #define __need_wchar_t
  18 #define __need_wint_t
  19 #ifndef RC_INVOKED
  20 #include <stddef.h>
  21 #endif  /* Not RC_INVOKED */
  22
  23
  24 /*
  25  * The following flags are used to tell iswctype and _isctype what character
  26  * types you are looking for.
  27  */
  28 #define _UPPER          0x0001
  29 #define _LOWER          0x0002
  30 #define _DIGIT          0x0004
  31 #define _SPACE          0x0008 /* HT  LF  VT  FF  CR  SP */
  32 #define _PUNCT          0x0010
  33 #define _CONTROL        0x0020
  34 /* _BLANK is set for SP and non-ASCII horizontal space chars (eg,
  35    "no-break space", 0xA0, in CP1250) but not for HT.  */
  36 #define _BLANK          0x0040
  37 #define _HEX            0x0080
  38 #define _LEADBYTE       0x8000
  39
  40 #define _ALPHA          0x0103
  41
  42 #ifndef RC_INVOKED
  43
  44 #ifdef __cplusplus
  45 extern "C" {
  46 #endif
  47
  48 _CRTIMP int __cdecl isalnum(int);
  49 _CRTIMP int __cdecl isalpha(int);
  50 _CRTIMP int __cdecl iscntrl(int);
  51 _CRTIMP int __cdecl isdigit(int);
  52 _CRTIMP int __cdecl isgraph(int);
  53 _CRTIMP int __cdecl islower(int);
  54 _CRTIMP int __cdecl isprint(int);
  55 _CRTIMP int __cdecl ispunct(int);
  56 _CRTIMP int __cdecl isspace(int);
  57 _CRTIMP int __cdecl isupper(int);
  58 _CRTIMP int __cdecl isxdigit(int);
  59
  60 #if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) \
  61      || !defined __STRICT_ANSI__
  62 int __cdecl isblank (int);
  63 #endif
  64
  65 #ifndef __STRICT_ANSI__
  66 _CRTIMP int __cdecl _isctype (int, int);
  67 #endif
  68
  69 /* These are the ANSI versions, with correct checking of argument */
  70 _CRTIMP int __cdecl tolower(int);
  71 _CRTIMP int __cdecl toupper(int);
  72
  73 /*
  74  * NOTE: The above are not old name type wrappers, but functions exported
  75  * explicitly by MSVCRT/CRTDLL. However, underscored versions are also
  76  * exported.
  77  */
  78 #ifndef __STRICT_ANSI__
  79 /*
  80  *  These are the cheap non-std versions: The return values are undefined
  81  *  if the argument is not ASCII char or is not of appropriate case
  82  */
  83 _CRTIMP int __cdecl _tolower(int);
  84 _CRTIMP int __cdecl _toupper(int);
  85 #endif
  86
  87 /* Also defined in stdlib.h */
  88 #ifndef MB_CUR_MAX
  89 #ifdef __DECLSPEC_SUPPORTED
  90 # ifdef __MSVCRT__
  91 #  define MB_CUR_MAX __mb_cur_max
  92    __MINGW_IMPORT int __mb_cur_max;
  93 # else  /* not __MSVCRT */
  94 #  define MB_CUR_MAX __mb_cur_max_dll
  95    __MINGW_IMPORT int __mb_cur_max_dll;
  96 # endif /* not __MSVCRT */
  97
  98 #else           /* ! __DECLSPEC_SUPPORTED */
  99 # ifdef __MSVCRT__
 100    extern int* _imp____mbcur_max;
 101 #  define MB_CUR_MAX (*_imp____mb_cur_max)
 102 # else          /* not __MSVCRT */
 103    extern int*  _imp____mbcur_max_dll;
 104 #  define MB_CUR_MAX (*_imp____mb_cur_max_dll)
 105 # endif         /* not __MSVCRT */
 106 #endif          /*  __DECLSPEC_SUPPORTED */
 107 #endif  /* MB_CUR_MAX */
 108
 109
 110 #ifdef __DECLSPEC_SUPPORTED
 111 __MINGW_IMPORT unsigned short _ctype[];
 112 # ifdef __MSVCRT__
 113   __MINGW_IMPORT unsigned short* _pctype;
 114 # else /* CRTDLL */
 115   __MINGW_IMPORT unsigned short* _pctype_dll;
 116 # define  _pctype _pctype_dll
 117 # endif
 118
 119 #else           /*  __DECLSPEC_SUPPORTED */
 120 extern unsigned short** _imp___ctype;
 121 #define _ctype (*_imp___ctype)
 122 # ifdef __MSVCRT__
 123   extern unsigned short** _imp___pctype;
 124 # define _pctype (*_imp___pctype)
 125 # else /* CRTDLL */
 126   extern unsigned short** _imp___pctype_dll;
 127 # define _pctype (*_imp___pctype_dll)
 128 # endif /* CRTDLL */
 129 #endif          /*  __DECLSPEC_SUPPORTED */
 130
 131 /*
 132  * Use inlines here rather than macros, because macros will upset
 133  * C++ usage (eg, ::isalnum), and so usually get undefined
 134  *
 135  * According to standard for SB chars, these function are defined only
 136  * for input values representable by unsigned char or EOF.
 137  * Thus, there is no range test.
 138  * This reproduces behaviour of MSVCRT.dll lib implemention for SB chars.
 139  *
 140  * If no MB char support is needed, these can be simplified even
 141  * more by command line define -DMB_CUR_MAX=1.  The compiler will then
 142  * optimise away the constant condition.
 143  */
 144
 145 #if ! (defined (__NO_INLINE__)  || defined (__NO_CTYPE_INLINES) \
 146         || defined (__STRICT_ANSI__))
 147
 148 /* use  simple lookup if SB locale, else  _isctype()  */
 149 #define __ISCTYPE(c, mask)  (MB_CUR_MAX == 1 ? (_pctype[c] & mask) : _isctype(c, mask))
 150 __CRT_INLINE int __cdecl isalnum(int c) {return __ISCTYPE(c, (_ALPHA|_DIGIT));}
 151 __CRT_INLINE int __cdecl isalpha(int c) {return __ISCTYPE(c, _ALPHA);}
 152 __CRT_INLINE int __cdecl iscntrl(int c) {return __ISCTYPE(c, _CONTROL);}
 153 __CRT_INLINE int __cdecl isdigit(int c) {return __ISCTYPE(c, _DIGIT);}
 154 __CRT_INLINE int __cdecl isgraph(int c) {return __ISCTYPE(c, (_PUNCT|_ALPHA|_DIGIT));}
 155 __CRT_INLINE int __cdecl islower(int c) {return __ISCTYPE(c, _LOWER);}
 156 __CRT_INLINE int __cdecl isprint(int c) {return __ISCTYPE(c, (_BLANK|_PUNCT|_ALPHA|_DIGIT));}
 157 __CRT_INLINE int __cdecl ispunct(int c) {return __ISCTYPE(c, _PUNCT);}
 158 __CRT_INLINE int __cdecl isspace(int c) {return __ISCTYPE(c, _SPACE);}
 159 __CRT_INLINE int __cdecl isupper(int c) {return __ISCTYPE(c, _UPPER);}
 160 __CRT_INLINE int __cdecl isxdigit(int c) {return __ISCTYPE(c, _HEX);}
 161
 162 #if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) \
 163      || !defined __STRICT_ANSI__
 164 __CRT_INLINE int __cdecl isblank (int c)
 165   {return (__ISCTYPE(c, _BLANK) || c == '\t');}
 166 #endif
 167
 168 /* these reproduce behaviour of lib underscored versions  */
 169 __CRT_INLINE int __cdecl _tolower(int c) {return ( c -'A'+'a');}
 170 __CRT_INLINE int __cdecl _toupper(int c) {return ( c -'a'+'A');}
 171
 172 /* TODO? Is it worth inlining ANSI tolower, toupper? Probably only
 173    if we only want C-locale. */
 174
 175 #endif /* _NO_CTYPE_INLINES */
 176
 177 /* Wide character equivalents */
 178
 179 #ifndef WEOF
 180 #define WEOF    (wchar_t)(0xFFFF)
 181 #endif
 182
 183 #ifndef _WCTYPE_T_DEFINED
 184 typedef wchar_t wctype_t;
 185 #define _WCTYPE_T_DEFINED
 186 #endif
 187
 188 _CRTIMP int __cdecl iswalnum(wint_t);
 189 _CRTIMP int __cdecl iswalpha(wint_t);
 190 _CRTIMP int __cdecl iswascii(wint_t);
 191 _CRTIMP int __cdecl iswcntrl(wint_t);
 192 _CRTIMP int __cdecl iswctype(wint_t, wctype_t);
 193 _CRTIMP int __cdecl is_wctype(wint_t, wctype_t);        /* Obsolete! */
 194 _CRTIMP int __cdecl iswdigit(wint_t);
 195 _CRTIMP int __cdecl iswgraph(wint_t);
 196 _CRTIMP int __cdecl iswlower(wint_t);
 197 _CRTIMP int __cdecl iswprint(wint_t);
 198 _CRTIMP int __cdecl iswpunct(wint_t);
 199 _CRTIMP int __cdecl iswspace(wint_t);
 200 _CRTIMP int __cdecl iswupper(wint_t);
 201 _CRTIMP int __cdecl iswxdigit(wint_t);
 202
 203 #if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) \
 204      || !defined __STRICT_ANSI__ || defined __cplusplus
 205 int __cdecl iswblank (wint_t);
 206 #endif
 207
 208 /* Older MS docs uses wchar_t for arg and return type, while newer
 209    online MS docs say arg is wint_t and return is int.
 210    ISO C uses wint_t for both.  */
 211 _CRTIMP wint_t __cdecl towlower (wint_t);
 212 _CRTIMP wint_t __cdecl towupper (wint_t);
 213
 214 _CRTIMP int __cdecl isleadbyte (int);
 215
 216 /* Also in wctype.h */
 217 #if ! (defined (__NO_INLINE__) || defined(__NO_CTYPE_INLINES) \
 218        || defined(__WCTYPE_INLINES_DEFINED))
 219 #define __WCTYPE_INLINES_DEFINED
 220 __CRT_INLINE int __cdecl iswalnum(wint_t wc) {return (iswctype(wc,_ALPHA|_DIGIT));}
 221 __CRT_INLINE int __cdecl iswalpha(wint_t wc) {return (iswctype(wc,_ALPHA));}
 222 __CRT_INLINE int __cdecl iswascii(wint_t wc) {return ((wc & ~0x7F) ==0);}
 223 __CRT_INLINE int __cdecl iswcntrl(wint_t wc) {return (iswctype(wc,_CONTROL));}
 224 __CRT_INLINE int __cdecl iswdigit(wint_t wc) {return (iswctype(wc,_DIGIT));}
 225 __CRT_INLINE int __cdecl iswgraph(wint_t wc) {return (iswctype(wc,_PUNCT|_ALPHA|_DIGIT));}
 226 __CRT_INLINE int __cdecl iswlower(wint_t wc) {return (iswctype(wc,_LOWER));}
 227 __CRT_INLINE int __cdecl iswprint(wint_t wc) {return (iswctype(wc,_BLANK|_PUNCT|_ALPHA|_DIGIT));}
 228 __CRT_INLINE int __cdecl iswpunct(wint_t wc) {return (iswctype(wc,_PUNCT));}
 229 __CRT_INLINE int __cdecl iswspace(wint_t wc) {return (iswctype(wc,_SPACE));}
 230 __CRT_INLINE int __cdecl iswupper(wint_t wc) {return (iswctype(wc,_UPPER));}
 231 __CRT_INLINE int __cdecl iswxdigit(wint_t wc) {return (iswctype(wc,_HEX));}
 232 __CRT_INLINE int __cdecl isleadbyte(int c) {return (_pctype[(unsigned char)(c)] & _LEADBYTE);}
 233 #if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) \
 234      || !defined __STRICT_ANSI__ || defined __cplusplus
 235 __CRT_INLINE int __cdecl iswblank (wint_t wc)
 236   {return (iswctype(wc,_BLANK) || wc == L'\t');}
 237 #endif
 238
 239 #endif /* !(defined(__NO_CTYPE_INLINES) || defined(__WCTYPE_INLINES_DEFINED)) */
 240
 241 #ifndef __STRICT_ANSI__
 242 int __cdecl __isascii (int);
 243 int __cdecl __toascii (int);
 244 int __cdecl __iscsymf (int);            /* Valid first character in C symbol */
 245 int __cdecl __iscsym (int);             /* Valid character in C symbol (after first) */
 246
 247 #if !(defined (__NO_INLINE__) || defined (__NO_CTYPE_INLINES))
 248 __CRT_INLINE int __cdecl __isascii(int c) {return ((c & ~0x7F) == 0);}
 249 __CRT_INLINE int __cdecl __toascii(int c) {return (c & 0x7F);}
 250 __CRT_INLINE int __cdecl __iscsymf(int c) {return (isalpha(c) || (c == '_'));}
 251 __CRT_INLINE int __cdecl __iscsym(int c)  {return  (isalnum(c) || (c == '_'));}
 252 #endif /* __NO_CTYPE_INLINES */
 253
 254 #ifndef _NO_OLDNAMES
 255 /* Not _CRTIMP */
 256 int __cdecl isascii (int);
 257 int __cdecl toascii (int);
 258 int __cdecl iscsymf (int);
 259 int __cdecl iscsym (int);
 260 #endif  /* Not _NO_OLDNAMES */
 261
 262 #endif  /* Not __STRICT_ANSI__ */
 263
 264 #ifdef __cplusplus
 265 }
 266 #endif
 267
 268 #endif  /* Not RC_INVOKED */
 269
 270 #endif  /* Not _CTYPE_H_ */
 271