dlls/msvcrt/ctype.c

   1 /*
   2  * msvcrt.dll ctype functions
   3  *
   4  * Copyright 2000 Jon Griffiths
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 #include "msvcrt.h"
  21
  22 #include "msvcrt/ctype.h"
  23
  24 #include "wine/debug.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  27
  28 /* Some abbreviations to make the following table readable */
  29 #define _C_ _CONTROL
  30 #define _S_ _SPACE
  31 #define _P_ _PUNCT
  32 #define _D_ _DIGIT
  33 #define _H_ _HEX
  34 #define _U_ _UPPER
  35 #define _L_ _LOWER
  36
  37 WORD MSVCRT__ctype [257] = {
  38   0, _C_, _C_, _C_, _C_, _C_, _C_, _C_, _C_, _C_, _S_|_C_, _S_|_C_,
  39   _S_|_C_, _S_|_C_, _S_|_C_, _C_, _C_, _C_, _C_, _C_, _C_, _C_, _C_,
  40   _C_, _C_, _C_, _C_, _C_, _C_, _C_, _C_, _C_, _C_, _S_|_BLANK,
  41   _P_, _P_, _P_, _P_, _P_, _P_, _P_, _P_, _P_, _P_, _P_, _P_, _P_, _P_,
  42   _P_, _D_|_H_, _D_|_H_, _D_|_H_, _D_|_H_, _D_|_H_, _D_|_H_, _D_|_H_,
  43   _D_|_H_, _D_|_H_, _D_|_H_, _P_, _P_, _P_, _P_, _P_, _P_, _P_, _U_|_H_,
  44   _U_|_H_, _U_|_H_, _U_|_H_, _U_|_H_, _U_|_H_, _U_, _U_, _U_, _U_, _U_,
  45   _U_, _U_, _U_, _U_, _U_, _U_, _U_, _U_, _U_, _U_, _U_, _U_, _U_, _U_,
  46   _U_, _P_, _P_, _P_, _P_, _P_, _P_, _L_|_H_, _L_|_H_, _L_|_H_, _L_|_H_,
  47   _L_|_H_, _L_|_H_, _L_, _L_, _L_, _L_, _L_, _L_, _L_, _L_, _L_, _L_,
  48   _L_, _L_, _L_, _L_, _L_, _L_, _L_, _L_, _L_, _L_, _P_, _P_, _P_, _P_,
  49   _C_, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  50   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  51   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  52   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  53   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  54   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
  55 };
  56
  57 /* Internal: Current ctype table for locale */
  58 WORD MSVCRT_current_ctype[257];
  59
  60 /* pctype is used by macros in the Win32 headers. It must point
  61  * To a table of flags exactly like ctype. To allow locale
  62  * changes to affect ctypes (i.e. isleadbyte), we use a second table
  63  * and update its flags whenever the current locale changes.
  64  */
  65 WORD* MSVCRT__pctype = MSVCRT_current_ctype + 1;
  66
  67 /* mbctype data */
  68 extern int MSVCRT___mb_cur_max;
  69 extern LCID MSVCRT_current_lc_all_lcid;
  70
  71 /*********************************************************************
  72  *              __p__pctype (MSVCRT.@)
  73  */
  74 WORD** __p__pctype(void)
  75 {
  76   return &MSVCRT__pctype;
  77 }
  78
  79 /*********************************************************************
  80  *              _isctype (MSVCRT.@)
  81  */
  82 int _isctype(int c, int type)
  83 {
  84   if (c >= -1 && c <= 255)
  85     return MSVCRT__pctype[c] & type;
  86
  87   if (MSVCRT___mb_cur_max != 1 && c > 0)
  88   {
  89     /* FIXME: Is there a faster way to do this? */
  90     WORD typeInfo;
  91     char convert[3], *pconv = convert;
  92
  93     if (MSVCRT__pctype[(UINT)c >> 8] & _LEADBYTE)
  94       *pconv++ = (UINT)c >> 8;
  95     *pconv++ = c & 0xff;
  96     *pconv = 0;
  97     /* FIXME: Use ctype LCID, not lc_all */
  98     if (GetStringTypeExA(MSVCRT_current_lc_all_lcid, CT_CTYPE1,
  99                          convert, convert[1] ? 2 : 1, &typeInfo))
 100       return typeInfo & type;
 101   }
 102   return 0;
 103 }
 104
 105 /*********************************************************************
 106  *              isalnum (MSVCRT.@)
 107  */
 108 int MSVCRT_isalnum(int c)
 109 {
 110   return _isctype( c, _ALPHA | _DIGIT );
 111 }
 112
 113 /*********************************************************************
 114  *              isalpha (MSVCRT.@)
 115  */
 116 int MSVCRT_isalpha(int c)
 117 {
 118   return _isctype( c, _ALPHA );
 119 }
 120
 121 /*********************************************************************
 122  *              iscntrl (MSVCRT.@)
 123  */
 124 int MSVCRT_iscntrl(int c)
 125 {
 126   return _isctype( c, _CONTROL );
 127 }
 128
 129 /*********************************************************************
 130  *              isdigit (MSVCRT.@)
 131  */
 132 int MSVCRT_isdigit(int c)
 133 {
 134   return _isctype( c, _DIGIT );
 135 }
 136
 137 /*********************************************************************
 138  *              isgraph (MSVCRT.@)
 139  */
 140 int MSVCRT_isgraph(int c)
 141 {
 142   return _isctype( c, _ALPHA | _DIGIT | _PUNCT );
 143 }
 144
 145 /*********************************************************************
 146  *              isleadbyte (MSVCRT.@)
 147  */
 148 int MSVCRT_isleadbyte(int c)
 149 {
 150   return _isctype( c, _LEADBYTE );
 151 }
 152
 153 /*********************************************************************
 154  *              islower (MSVCRT.@)
 155  */
 156 int MSVCRT_islower(int c)
 157 {
 158   return _isctype( c, _LOWER );
 159 }
 160
 161 /*********************************************************************
 162  *              isprint (MSVCRT.@)
 163  */
 164 int MSVCRT_isprint(int c)
 165 {
 166   return _isctype( c, _ALPHA | _DIGIT | _BLANK | _PUNCT );
 167 }
 168
 169 /*********************************************************************
 170  *              ispunct (MSVCRT.@)
 171  */
 172 int MSVCRT_ispunct(int c)
 173 {
 174   return _isctype( c, _PUNCT );
 175 }
 176
 177 /*********************************************************************
 178  *              isspace (MSVCRT.@)
 179  */
 180 int MSVCRT_isspace(int c)
 181 {
 182   return _isctype( c, _SPACE );
 183 }
 184
 185 /*********************************************************************
 186  *              isupper (MSVCRT.@)
 187  */
 188 int MSVCRT_isupper(int c)
 189 {
 190   return _isctype( c, _UPPER );
 191 }
 192
 193 /*********************************************************************
 194  *              isxdigit (MSVCRT.@)
 195  */
 196 int MSVCRT_isxdigit(int c)
 197 {
 198   return _isctype( c, _HEX );
 199 }
 200
 201 /*********************************************************************
 202  *              __isascii (MSVCRT.@)
 203  */
 204 int MSVCRT___isascii(int c)
 205 {
 206   return isascii((unsigned)c);
 207 }
 208
 209 /*********************************************************************
 210  *              __toascii (MSVCRT.@)
 211  */
 212 int MSVCRT___toascii(int c)
 213 {
 214   return (unsigned)c & 0x7f;
 215 }
 216
 217 /*********************************************************************
 218  *              iswascii (MSVCRT.@)
 219  *
 220  */
 221 int MSVCRT_iswascii(MSVCRT_wchar_t c)
 222 {
 223   return ((unsigned)c < 0x80);
 224 }
 225
 226 /*********************************************************************
 227  *              __iscsym (MSVCRT.@)
 228  */
 229 int MSVCRT___iscsym(int c)
 230 {
 231   return (c < 127 && (isalnum(c) || c == '_'));
 232 }
 233
 234 /*********************************************************************
 235  *              __iscsymf (MSVCRT.@)
 236  */
 237 int MSVCRT___iscsymf(int c)
 238 {
 239   return (c < 127 && (isalpha(c) || c == '_'));
 240 }
 241
 242 /*********************************************************************
 243  *              _toupper (MSVCRT.@)
 244  */
 245 int MSVCRT__toupper(int c)
 246 {
 247     return c - 0x20;  /* sic */
 248 }
 249
 250 /*********************************************************************
 251  *              _tolower (MSVCRT.@)
 252  */
 253 int MSVCRT__tolower(int c)
 254 {
 255     return c + 0x20;  /* sic */
 256 }