dlls/imm32/string.c

   1 /*
   2  *      Helper functions for ANSI<->UNICODE string conversion
   3  *
   4  *      Copyright 2000 Hidenori Takeshima
   5  */
   6
   7 #include "config.h"
   8
   9 #include "winbase.h"
  10 #include "windef.h"
  11 #include "wingdi.h"
  12 #include "winuser.h"
  13 #include "winerror.h"
  14 #include "winnls.h"
  15 #include "immddk.h"
  16 #include "debugtools.h"
  17 DEFAULT_DEBUG_CHANNEL(imm);
  18
  19 #include "imm_private.h"
  20
  21
  22 INT IMM32_strlenAtoW( LPCSTR lpstr )
  23 {
  24         INT     len;
  25
  26         len = MultiByteToWideChar( CP_ACP, 0, lpstr, -1, NULL, 0 );
  27         return ( len > 0 ) ? (len-1) : 0;
  28 }
  29
  30 INT IMM32_strlenWtoA( LPCWSTR lpwstr )
  31 {
  32         INT     len;
  33
  34         len = WideCharToMultiByte( CP_ACP, 0, lpwstr, -1,
  35                                    NULL, 0, NULL, NULL );
  36         return ( len > 0 ) ? (len-1) : 0;
  37 }
  38
  39 LPWSTR IMM32_strncpyAtoW( LPWSTR lpwstr, LPCSTR lpstr, INT wbuflen )
  40 {
  41         INT     len;
  42
  43         len = MultiByteToWideChar( CP_ACP, 0, lpstr, -1, lpwstr, wbuflen );
  44         if ( len == 0 )
  45                 *lpwstr = 0;
  46         return lpwstr;
  47 }
  48
  49 LPSTR IMM32_strncpyWtoA( LPSTR lpstr, LPCWSTR lpwstr, INT abuflen )
  50 {
  51         INT     len;
  52
  53         len = WideCharToMultiByte( CP_ACP, 0, lpwstr, -1,
  54                                    lpstr, abuflen, NULL, NULL );
  55         if ( len == 0 )
  56                 *lpstr = 0;
  57         return lpstr;
  58 }
  59
  60 LPWSTR IMM32_strdupAtoW( LPCSTR lpstr )
  61 {
  62         INT len;
  63         LPWSTR lpwstr = NULL;
  64
  65         len = IMM32_strlenAtoW( lpstr );
  66         if ( len > 0 )
  67         {
  68                 lpwstr = (LPWSTR)IMM32_HeapAlloc( 0, sizeof(WCHAR)*(len+1) );
  69                 if ( lpwstr != NULL )
  70                         (void)IMM32_strncpyAtoW( lpwstr, lpstr, len+1 );
  71         }
  72
  73         return lpwstr;
  74 }
  75
  76 LPSTR IMM32_strdupWtoA( LPCWSTR lpwstr )
  77 {
  78         INT len;
  79         LPSTR lpstr = NULL;
  80
  81         len = IMM32_strlenWtoA( lpwstr );
  82         if ( len > 0 )
  83         {
  84                 lpstr = (LPSTR)IMM32_HeapAlloc( 0, sizeof(CHAR)*(len+1) );
  85                 if ( lpstr != NULL )
  86                         (void)IMM32_strncpyWtoA( lpstr, lpwstr, len+1 );
  87         }
  88
  89         return lpstr;
  90 }