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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "msvcrt.h"
  22 #include "winnls.h"
  23
  24 /* Some abbreviations to make the following table readable */
  25 #define _C_ MSVCRT__CONTROL
  26 #define _S_ MSVCRT__SPACE
  27 #define _P_ MSVCRT__PUNCT
  28 #define _D_ MSVCRT__DIGIT
  29 #define _H_ MSVCRT__HEX
  30 #define _U_ MSVCRT__UPPER
  31 #define _L_ MSVCRT__LOWER
  32
  33 WORD MSVCRT__ctype [257] = {
  34   0, _C_, _C_, _C_, _C_, _C_, _C_, _C_, _C_, _C_, _S_|_C_, _S_|_C_,
  35   _S_|_C_, _S_|_C_, _S_|_C_, _C_, _C_, _C_, _C_, _C_, _C_, _C_, _C_,
  36   _C_, _C_, _C_, _C_, _C_, _C_, _C_, _C_, _C_, _C_, _S_|MSVCRT__BLANK,
  37   _P_, _P_, _P_, _P_, _P_, _P_, _P_, _P_, _P_, _P_, _P_, _P_, _P_, _P_,
  38   _P_, _D_|_H_, _D_|_H_, _D_|_H_, _D_|_H_, _D_|_H_, _D_|_H_, _D_|_H_,
  39   _D_|_H_, _D_|_H_, _D_|_H_, _P_, _P_, _P_, _P_, _P_, _P_, _P_, _U_|_H_,
  40   _U_|_H_, _U_|_H_, _U_|_H_, _U_|_H_, _U_|_H_, _U_, _U_, _U_, _U_, _U_,
  41   _U_, _U_, _U_, _U_, _U_, _U_, _U_, _U_, _U_, _U_, _U_, _U_, _U_, _U_,
  42   _U_, _P_, _P_, _P_, _P_, _P_, _P_, _L_|_H_, _L_|_H_, _L_|_H_, _L_|_H_,
  43   _L_|_H_, _L_|_H_, _L_, _L_, _L_, _L_, _L_, _L_, _L_, _L_, _L_, _L_,
  44   _L_, _L_, _L_, _L_, _L_, _L_, _L_, _L_, _L_, _L_, _P_, _P_, _P_, _P_,
  45   _C_, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  46   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  47   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  48   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  49   0, 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
  51 };
  52
  53 /* pctype is used by macros in the Win32 headers. It must point
  54  * To a table of flags exactly like ctype. To allow locale
  55  * changes to affect ctypes (i.e. isleadbyte), we use a second table
  56  * and update its flags whenever the current locale changes.
  57  */
  58 WORD* MSVCRT__pctype = NULL;
  59
  60 /*********************************************************************
  61  *              __pctype_func (MSVCRT.@)
  62  */
  63 WORD** CDECL MSVCRT___pctype_func(void)
  64 {
  65   return &get_locale()->locinfo->pctype;
  66 }
  67
  68 /*********************************************************************
  69  *              _isctype (MSVCRT.@)
  70  */
  71 int CDECL _isctype(int c, int type)
  72 {
  73   MSVCRT__locale_t locale = get_locale();
  74
  75   if (c >= -1 && c <= 255)
  76     return locale->locinfo->pctype[c] & type;
  77
  78   if (locale->locinfo->mb_cur_max != 1 && c > 0)
  79   {
  80     /* FIXME: Is there a faster way to do this? */
  81     WORD typeInfo;
  82     char convert[3], *pconv = convert;
  83
  84     if (locale->locinfo->pctype[(UINT)c >> 8] & MSVCRT__LEADBYTE)
  85       *pconv++ = (UINT)c >> 8;
  86     *pconv++ = c & 0xff;
  87     *pconv = 0;
  88     /* FIXME: Use ctype LCID, not lc_all */
  89     if (GetStringTypeExA(get_locale()->locinfo->lc_handle[MSVCRT_LC_CTYPE],
  90                 CT_CTYPE1, convert, convert[1] ? 2 : 1, &typeInfo))
  91       return typeInfo & type;
  92   }
  93   return 0;
  94 }
  95
  96 /*********************************************************************
  97  *              isalnum (MSVCRT.@)
  98  */
  99 int CDECL MSVCRT_isalnum(int c)
 100 {
 101   return _isctype( c, MSVCRT__ALPHA | MSVCRT__DIGIT );
 102 }
 103
 104 /*********************************************************************
 105  *              isalpha (MSVCRT.@)
 106  */
 107 int CDECL MSVCRT_isalpha(int c)
 108 {
 109   return _isctype( c, MSVCRT__ALPHA );
 110 }
 111
 112 /*********************************************************************
 113  *              iscntrl (MSVCRT.@)
 114  */
 115 int CDECL MSVCRT_iscntrl(int c)
 116 {
 117   return _isctype( c, MSVCRT__CONTROL );
 118 }
 119
 120 /*********************************************************************
 121  *              isdigit (MSVCRT.@)
 122  */
 123 int CDECL MSVCRT_isdigit(int c)
 124 {
 125   return _isctype( c, MSVCRT__DIGIT );
 126 }
 127
 128 /*********************************************************************
 129  *              isgraph (MSVCRT.@)
 130  */
 131 int CDECL MSVCRT_isgraph(int c)
 132 {
 133   return _isctype( c, MSVCRT__ALPHA | MSVCRT__DIGIT | MSVCRT__PUNCT );
 134 }
 135
 136 /*********************************************************************
 137  *              isleadbyte (MSVCRT.@)
 138  */
 139 int CDECL MSVCRT_isleadbyte(int c)
 140 {
 141   return _isctype( c, MSVCRT__LEADBYTE );
 142 }
 143
 144 /*********************************************************************
 145  *              islower (MSVCRT.@)
 146  */
 147 int CDECL MSVCRT_islower(int c)
 148 {
 149   return _isctype( c, MSVCRT__LOWER );
 150 }
 151
 152 /*********************************************************************
 153  *              isprint (MSVCRT.@)
 154  */
 155 int CDECL MSVCRT_isprint(int c)
 156 {
 157   return _isctype( c, MSVCRT__ALPHA | MSVCRT__DIGIT | MSVCRT__BLANK | MSVCRT__PUNCT );
 158 }
 159
 160 /*********************************************************************
 161  *              ispunct (MSVCRT.@)
 162  */
 163 int CDECL MSVCRT_ispunct(int c)
 164 {
 165   return _isctype( c, MSVCRT__PUNCT );
 166 }
 167
 168 /*********************************************************************
 169  *              isspace (MSVCRT.@)
 170  */
 171 int CDECL MSVCRT_isspace(int c)
 172 {
 173   return _isctype( c, MSVCRT__SPACE );
 174 }
 175
 176 /*********************************************************************
 177  *              isupper (MSVCRT.@)
 178  */
 179 int CDECL MSVCRT_isupper(int c)
 180 {
 181   return _isctype( c, MSVCRT__UPPER );
 182 }
 183
 184 /*********************************************************************
 185  *              isxdigit (MSVCRT.@)
 186  */
 187 int CDECL MSVCRT_isxdigit(int c)
 188 {
 189   return _isctype( c, MSVCRT__HEX );
 190 }
 191
 192 /*********************************************************************
 193  *              __isascii (MSVCRT.@)
 194  */
 195 int CDECL MSVCRT___isascii(int c)
 196 {
 197   return isascii((unsigned)c);
 198 }
 199
 200 /*********************************************************************
 201  *              __toascii (MSVCRT.@)
 202  */
 203 int CDECL MSVCRT___toascii(int c)
 204 {
 205   return (unsigned)c & 0x7f;
 206 }
 207
 208 /*********************************************************************
 209  *              iswascii (MSVCRT.@)
 210  *
 211  */
 212 int CDECL MSVCRT_iswascii(MSVCRT_wchar_t c)
 213 {
 214   return ((unsigned)c < 0x80);
 215 }
 216
 217 /*********************************************************************
 218  *              __iscsym (MSVCRT.@)
 219  */
 220 int CDECL MSVCRT___iscsym(int c)
 221 {
 222   return (c < 127 && (isalnum(c) || c == '_'));
 223 }
 224
 225 /*********************************************************************
 226  *              __iscsymf (MSVCRT.@)
 227  */
 228 int CDECL MSVCRT___iscsymf(int c)
 229 {
 230   return (c < 127 && (isalpha(c) || c == '_'));
 231 }
 232
 233 /*********************************************************************
 234  *              _toupper (MSVCRT.@)
 235  */
 236 int CDECL MSVCRT__toupper(int c)
 237 {
 238     return c - 0x20;  /* sic */
 239 }
 240
 241 /*********************************************************************
 242  *              _tolower (MSVCRT.@)
 243  */
 244 int CDECL MSVCRT__tolower(int c)
 245 {
 246     return c + 0x20;  /* sic */
 247 }