1 /* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd

     2    See the file COPYING for copying permission.

     3 */

     4 

     5 #include "codepage.h"

     6 

     7 #if (defined(WIN32) || (defined(__WATCOMC__) && defined(__NT__)))

     8 #define STRICT 1

     9 #define WIN32_LEAN_AND_MEAN 1

    10 

    11 #include <windows.h>

    12 

    13 int

    14 codepageMap(int cp, int *map)

    15 {

    16   int i;

    17   CPINFO info;

    18   if (!GetCPInfo(cp, &info) || info.MaxCharSize > 2)

    19     return 0;

    20   for (i = 0; i < 256; i++)

    21     map[i] = -1;

    22   if (info.MaxCharSize > 1) {

    23     for (i = 0; i < MAX_LEADBYTES; i+=2) {

    24       int j, lim;

    25       if (info.LeadByte[i] == 0 && info.LeadByte[i + 1] == 0)

    26         break;

    27       lim = info.LeadByte[i + 1];

    28       for (j = info.LeadByte[i]; j <= lim; j++)

    29         map[j] = -2;

    30     }

    31   }

    32   for (i = 0; i < 256; i++) {

    33    if (map[i] == -1) {

    34      char c = (char)i;

    35      unsigned short n;

    36      if (MultiByteToWideChar(cp, MB_PRECOMPOSED|MB_ERR_INVALID_CHARS,

    37                              &c, 1, &n, 1) == 1)

    38        map[i] = n;

    39    }

    40   }

    41   return 1;

    42 }

    43 

    44 int

    45 codepageConvert(int cp, const char *p)

    46 {

    47   unsigned short c;

    48   if (MultiByteToWideChar(cp, MB_PRECOMPOSED|MB_ERR_INVALID_CHARS,

    49                           p, 2, &c, 1) == 1)

    50     return c;

    51   return -1;

    52 }

    53 

    54 #else /* not WIN32 */

    55 

    56 int

    57 codepageMap(int cp, int *map)

    58 {

    59   return 0;

    60 }

    61 

    62 int

    63 codepageConvert(int cp, const char *p)

    64 {

    65   return -1;

    66 }

    67 

    68 #endif /* not WIN32 */