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Untested raw implementation of MultiByteToWideChar().

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svn path=/trunk/; revision=986
This commit is contained in:
Emanuele Aliberti 2000-02-14 22:10:46 +00:00
parent 3cd2fc22d7
commit f0175145d6
1 changed files with 152 additions and 4 deletions
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156
reactos/lib/kernel32/misc/stubs.c
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@ -1,4 +1,4 @@
/* $Id: stubs.c,v 1.11 1999/12/26 15:50:44 dwelch Exp $
/* $Id: stubs.c,v 1.12 2000/02/14 22:10:46 ea Exp $
*
* KERNEL32.DLL stubs (unimplemented functions)
* Remove from this file, if you implement them.
@ -2878,7 +2878,69 @@ MulDiv (
}
int
/**********************************************************************
* NAME PRIVATE
* IsInstalledCP@4
*
* RETURN VALUE
* TRUE if CodePage is installed in the system.
*/
static
BOOL
STDCALL
IsInstalledCP (
UINT CodePage
)
{
/* FIXME */
return TRUE;
}
/**********************************************************************
* NAME EXPORTED
* MultiByteToWideChar@24
*
* ARGUMENTS
* CodePage
* CP_ACP ANSI code page
* CP_MACCP Macintosh code page
* CP_OEMCP OEM code page
* (UINT) Any installed code page
*
* dwFlags
* MB_PRECOMPOSED
* MB_COMPOSITE
* MB_ERR_INVALID_CHARS
* MB_USEGLYPHCHARS
*
* lpMultiByteStr
* Input buffer;
*
* cchMultiByte
* Size of MultiByteStr, or -1 if MultiByteStr is
* NULL terminated;
*
* lpWideCharStr
* Output buffer;
*
* cchWideChar
* Size (in WCHAR unit) of WideCharStr, or 0
* if the caller just wants to know how large
* WideCharStr should be for a successful
* conversion.
*
* RETURN VALUE
* 0 on error; otherwise the number of WCHAR written
* in the WideCharStr buffer.
*
* NOTE
* A raw converter for now. It assumes lpMultiByteStr is
* NEVER multi-byte (that is each input character is
* 8-bit ASCII) and is ALWAYS NULL terminated.
* FIXME-FIXME-FIXME-FIXME
*/
INT
STDCALL
MultiByteToWideChar (
UINT CodePage,
@ -2889,8 +2951,94 @@ MultiByteToWideChar (
int cchWideChar
)
{
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return 0;
int InStringLength = 0;
BOOL InIsNullTerminated = TRUE;
PCHAR r;
PWCHAR w;
int cchConverted;
/*
* Check the parameters.
*/
if ( /* --- CODE PAGE --- */
( (CP_ACP != CodePage)
&& (CP_MACCP != CodePage)
&& (CP_OEMCP != CodePage)
&& (FALSE == IsInstalledCP (CodePage))
)
/* --- FLAGS --- */
|| (dwFlags ^ ( MB_PRECOMPOSED
| MB_COMPOSITE
| MB_ERR_INVALID_CHARS
| MB_USEGLYPHCHARS
)
)
/* --- INPUT BUFFER --- */
|| (NULL == lpMultiByteStr)
)
{
SetLastError (ERROR_INVALID_PARAMETER);
return 0;
}
/*
* Compute the input buffer length.
*/
if (-1 == cchMultiByte)
{
InStringLength = lstrlen (lpMultiByteStr);
}
else
{
InIsNullTerminated = FALSE;
InStringLength = cchMultiByte;
}
/*
* Does caller query for output
* buffer size?
*/
if (0 == cchWideChar)
{
SetLastError (ERROR_SUCCESS);
return InStringLength;
}
/*
* Is space provided for the translated
* string enough?
*/
if (cchWideChar < InStringLength)
{
SetLastError (ERROR_INSUFFICIENT_BUFFER);
return 0;
}
/*
* Raw 8- to 16-bit conversion.
*/
for ( cchConverted = 0,
r = (PCHAR) lpMultiByteStr,
w = (PWCHAR) lpWideCharStr;
((*r) && (cchConverted < cchWideChar));
r++,
cchConverted++
)
{
*w = (WCHAR) *r;
}
/*
* Is the input string NULL terminated?
*/
if (TRUE == InIsNullTerminated)
{
*w = L'\0';
++cchConverted;
}
/*
* Return how many characters we
* wrote in the output buffer.
*/
SetLastError (ERROR_SUCCESS);
return cchConverted;
}