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[wxWidgets.git] / src / expat / xmlwf / codepage.c
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 #ifdef WIN32
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++) {
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 */