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 #include "internal.h" /* for UNUSED_P only */ 7 8 #if (defined(WIN32) || (defined(__WATCOMC__) && defined(__NT__))) 9 #define STRICT 1 10 #define WIN32_LEAN_AND_MEAN 1 11 12 #include <windows.h> 13 14 int 15 codepageMap(int cp, int *map) 16 { 17 int i; 18 CPINFO info; 19 if (!GetCPInfo(cp, &info) || info.MaxCharSize > 2) 20 return 0; 21 for (i = 0; i < 256; i++) 22 map[i] = -1; 23 if (info.MaxCharSize > 1) { 24 for (i = 0; i < MAX_LEADBYTES; i+=2) { 25 int j, lim; 26 if (info.LeadByte[i] == 0 && info.LeadByte[i + 1] == 0) 27 break; 28 lim = info.LeadByte[i + 1]; 29 for (j = info.LeadByte[i]; j <= lim; j++) 30 map[j] = -2; 31 } 32 } 33 for (i = 0; i < 256; i++) { 34 if (map[i] == -1) { 35 char c = (char)i; 36 unsigned short n; 37 if (MultiByteToWideChar(cp, MB_PRECOMPOSED|MB_ERR_INVALID_CHARS, 38 &c, 1, &n, 1) == 1) 39 map[i] = n; 40 } 41 } 42 return 1; 43 } 44 45 int 46 codepageConvert(int cp, const char *p) 47 { 48 unsigned short c; 49 if (MultiByteToWideChar(cp, MB_PRECOMPOSED|MB_ERR_INVALID_CHARS, 50 p, 2, &c, 1) == 1) 51 return c; 52 return -1; 53 } 54 55 #else /* not WIN32 */ 56 57 int 58 codepageMap(int UNUSED_P(cp), int *UNUSED_P(map)) 59 { 60 return 0; 61 } 62 63 int 64 codepageConvert(int UNUSED_P(cp), const char *UNUSED_P(p)) 65 { 66 return -1; 67 } 68 69 #endif /* not WIN32 */ 70