dlls/user32/lstr.c

   1 /*
   2  * USER string functions
   3  *
   4  * Copyright 1993 Yngvi Sigurjonsson (yngvi@hafro.is)
   5  * Copyright 1996 Alexandre Julliard
   6  * Copyright 1996 Marcus Meissner
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include <ctype.h>
  24 #include <stdarg.h>
  25 #include <stdlib.h>
  26 #include <stdio.h>
  27 #include <string.h>
  28
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "winnls.h"
  32 #include "winuser.h"
  33 #include "winerror.h"
  34
  35
  36 /***********************************************************************
  37  *           CharNextExW   (USER32.@)
  38  */
  39 LPWSTR WINAPI CharNextExW( WORD codepage, LPCWSTR ptr, DWORD flags )
  40 {
  41     /* doesn't make sense, there are no codepages for Unicode */
  42     return NULL;
  43 }
  44
  45
  46 /***********************************************************************
  47  *           CharPrevExW   (USER32.@)
  48  */
  49 LPSTR WINAPI CharPrevExW( WORD codepage, LPCWSTR start, LPCWSTR ptr, DWORD flags )
  50 {
  51     /* doesn't make sense, there are no codepages for Unicode */
  52     return NULL;
  53 }
  54
  55
  56 /***********************************************************************
  57  *           CharToOemA   (USER32.@)
  58  */
  59 BOOL WINAPI CharToOemA( LPCSTR s, LPSTR d )
  60 {
  61     if (!s || !d) return FALSE;
  62     return CharToOemBuffA( s, d, strlen( s ) + 1 );
  63 }
  64
  65
  66 /***********************************************************************
  67  *           CharToOemBuffA   (USER32.@)
  68  */
  69 BOOL WINAPI CharToOemBuffA( LPCSTR s, LPSTR d, DWORD len )
  70 {
  71     WCHAR *bufW;
  72
  73     if (!s || !d) return FALSE;
  74
  75     bufW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
  76     if( bufW )
  77     {
  78         MultiByteToWideChar( CP_ACP, 0, s, len, bufW, len );
  79         WideCharToMultiByte( CP_OEMCP, 0, bufW, len, d, len, NULL, NULL );
  80         HeapFree( GetProcessHeap(), 0, bufW );
  81     }
  82     return TRUE;
  83 }
  84
  85
  86 /***********************************************************************
  87  *           CharToOemBuffW   (USER32.@)
  88  */
  89 BOOL WINAPI CharToOemBuffW( LPCWSTR s, LPSTR d, DWORD len )
  90 {
  91     if (!s || !d) return FALSE;
  92     WideCharToMultiByte( CP_OEMCP, 0, s, len, d, len, NULL, NULL );
  93     return TRUE;
  94 }
  95
  96
  97 /***********************************************************************
  98  *           CharToOemW   (USER32.@)
  99  */
 100 BOOL WINAPI CharToOemW( LPCWSTR s, LPSTR d )
 101 {
 102     if (!s || !d) return FALSE;
 103     return CharToOemBuffW( s, d, lstrlenW( s ) + 1 );
 104 }
 105
 106
 107 /***********************************************************************
 108  *           OemToCharA   (USER32.@)
 109  */
 110 BOOL WINAPI OemToCharA( LPCSTR s, LPSTR d )
 111 {
 112     if (!s || !d) return FALSE;
 113     return OemToCharBuffA( s, d, strlen( s ) + 1 );
 114 }
 115
 116
 117 /***********************************************************************
 118  *           OemToCharBuffA   (USER32.@)
 119  */
 120 BOOL WINAPI OemToCharBuffA( LPCSTR s, LPSTR d, DWORD len )
 121 {
 122     WCHAR *bufW;
 123
 124     if (!s || !d) return FALSE;
 125
 126     bufW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
 127     if( bufW )
 128     {
 129         MultiByteToWideChar( CP_OEMCP, 0, s, len, bufW, len );
 130         WideCharToMultiByte( CP_ACP, 0, bufW, len, d, len, NULL, NULL );
 131         HeapFree( GetProcessHeap(), 0, bufW );
 132     }
 133     return TRUE;
 134 }
 135
 136
 137 /***********************************************************************
 138  *           OemToCharBuffW   (USER32.@)
 139  */
 140 BOOL WINAPI OemToCharBuffW( LPCSTR s, LPWSTR d, DWORD len )
 141 {
 142     if (!s || !d) return FALSE;
 143     MultiByteToWideChar( CP_OEMCP, MB_PRECOMPOSED | MB_USEGLYPHCHARS, s, len, d, len );
 144     return TRUE;
 145 }
 146
 147
 148 /***********************************************************************
 149  *           OemToCharW   (USER32.@)
 150  */
 151 BOOL WINAPI OemToCharW( LPCSTR s, LPWSTR d )
 152 {
 153     if (!s || !d) return FALSE;
 154     return OemToCharBuffW( s, d, strlen( s ) + 1 );
 155 }