ReactOS  0.4.15-dev-1039-gb9754fa
jistojms.c
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1 /*
2  * MSVCRT string functions
3  *
4  * Copyright 1996,1998 Marcus Meissner
5  * Copyright 1996 Jukka Iivonen
6  * Copyright 1997,2000 Uwe Bonnes
7  * Copyright 2000 Jon Griffiths
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with this library; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22  */
23 
24 
25 #include <precomp.h>
26 #include <mbstring.h>
27 #include <locale.h>
28 
29 /*
30  * @implemented
31  */
32 unsigned int _mbcjistojms(unsigned int c)
33 {
34  /* Conversion takes place only when codepage is 932.
35  In all other cases, c is returned unchanged */
36  if(get_mbcinfo()->mbcodepage == 932)
37  {
38  if(HIBYTE(c) >= 0x21 && HIBYTE(c) <= 0x7e &&
39  LOBYTE(c) >= 0x21 && LOBYTE(c) <= 0x7e)
40  {
41  if(HIBYTE(c) % 2)
42  c += 0x1f;
43  else
44  c += 0x7d;
45 
46  if(LOBYTE(c) >= 0x7F)
47  c += 0x1;
48 
49  c = (((HIBYTE(c) - 0x21)/2 + 0x81) << 8) | LOBYTE(c);
50 
51  if(HIBYTE(c) > 0x9f)
52  c += 0x4000;
53  }
54  else
55  return 0; /* Codepage is 932, but c can't be converted */
56  }
57 
58  return c;
59 }
60 
#define LOBYTE(W)
Definition: jmemdos.c:487
#define HIBYTE(W)
Definition: jmemdos.c:486
unsigned int _mbcjistojms(unsigned int c)
Definition: jistojms.c:32
const GLubyte * c
Definition: glext.h:8905
MSVCRT_pthreadmbcinfo get_mbcinfo(void)
Definition: locale.c:364
#define c
Definition: ke_i.h:80