reactos/win32ss/user/user32/windows/text.c
Stanislav Motylkov 51f78918da
[USER32] Rewrite CharPrev(Ex)A functions and fix tests (#4860)
Fixes 48 failing tests of user32:CharFuncs.
Only 12 minor failing tests are left!

Thanks to Simone Mario Lombardo for the problem analysis!

CORE-18415 CORE-18452
2022-11-13 13:22:26 +03:00

468 lines
7.5 KiB
C

/*
* PROJECT: ReactOS user32.dll
* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
* PURPOSE: Text processing functions
* COPYRIGHT: Copyright 2001-2004 Casper S. Hornstrup <chorns@users.sourceforge.net>
*/
#include <user32.h>
static WORD
GetC1Type(WCHAR Ch)
{
WORD CharType;
if (! GetStringTypeW(CT_CTYPE1, &Ch, 1, &CharType))
{
return 0;
}
return CharType;
}
/*
* @implemented
*/
LPSTR
WINAPI
CharLowerA(LPSTR str)
{
if (!HIWORD(str))
{
char ch = LOWORD(str);
CharLowerBuffA( &ch, 1 );
return (LPSTR)(UINT_PTR)(BYTE)ch;
}
_SEH2_TRY
{
CharLowerBuffA( str, strlen(str) );
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
SetLastError( ERROR_INVALID_PARAMETER );
_SEH2_YIELD(return NULL);
}
_SEH2_END;
return str;
}
/*
* @implemented
*/
DWORD
WINAPI
CharLowerBuffA(LPSTR str, DWORD len)
{
DWORD lenW;
WCHAR *strW;
if (!str) return 0; /* YES */
lenW = MultiByteToWideChar(CP_ACP, 0, str, len, NULL, 0);
strW = HeapAlloc(GetProcessHeap(), 0, lenW * sizeof(WCHAR));
if (strW) {
MultiByteToWideChar(CP_ACP, 0, str, len, strW, lenW);
CharLowerBuffW(strW, lenW);
len = WideCharToMultiByte(CP_ACP, 0, strW, lenW, str, len, NULL, NULL);
HeapFree(GetProcessHeap(), 0, strW);
return len;
}
return 0;
}
/*
* @implemented
*/
DWORD
WINAPI
CharLowerBuffW(LPWSTR str, DWORD len)
{
DWORD ret = len;
if (!str) return 0; /* YES */
for (; len; len--, str++) *str = towlower(*str);
return ret;
}
/*
* @implemented
*/
LPWSTR
WINAPI
CharLowerW(LPWSTR x)
{
if (HIWORD(x)) return strlwrW(x);
else return (LPWSTR)((UINT_PTR)tolowerW(LOWORD(x)));
}
/*
* @implemented
*/
LPWSTR
WINAPI
CharPrevW(LPCWSTR start, LPCWSTR x)
{
if (x > start) return (LPWSTR)(x - 1);
else return (LPWSTR)x;
}
/*
* @implemented
*/
LPSTR
WINAPI
CharNextA(LPCSTR ptr)
{
if (!*ptr) return (LPSTR)ptr;
if (IsDBCSLeadByte(ptr[0]) && ptr[1]) return (LPSTR)(ptr + 2);
return (LPSTR)(ptr + 1);
}
/*
* @implemented
*/
LPSTR
WINAPI
CharNextExA(WORD codepage, LPCSTR ptr, DWORD flags)
{
if (!*ptr) return (LPSTR)ptr;
if (IsDBCSLeadByteEx(codepage, ptr[0]) && ptr[1]) return (LPSTR)(ptr + 2);
return (LPSTR)(ptr + 1);
}
/*
* @implemented
*/
LPWSTR
WINAPI
CharNextW(LPCWSTR x)
{
if (*x) x++;
return (LPWSTR)x;
}
/*
* @implemented
*/
LPSTR
WINAPI
CharPrevA(LPCSTR start, LPCSTR ptr)
{
if (ptr > start)
{
--ptr;
if (gpsi->dwSRVIFlags & SRVINFO_DBCSENABLED)
{
LPCSTR ch;
BOOL dbl = FALSE;
for (ch = ptr - 1; ch >= start; --ch)
{
if (!IsDBCSLeadByte(*ch))
break;
dbl = !dbl;
}
if (dbl) --ptr;
}
}
return (LPSTR)ptr;
}
/*
* @implemented
*/
LPSTR
WINAPI
CharPrevExA(WORD codepage, LPCSTR start, LPCSTR ptr, DWORD flags)
{
if (ptr > start)
{
LPCSTR ch;
BOOL dbl = FALSE;
--ptr;
for (ch = ptr - 1; ch >= start; --ch)
{
if (!IsDBCSLeadByteEx(codepage, *ch))
break;
dbl = !dbl;
}
if (dbl) --ptr;
}
return (LPSTR)ptr;
}
/*
* @implemented
*/
BOOL
WINAPI
CharToOemA(LPCSTR s, LPSTR d)
{
if (!s || !d) return FALSE;
return CharToOemBuffA(s, d, strlen(s) + 1);
}
/*
* @implemented
*/
BOOL
WINAPI
CharToOemBuffA(LPCSTR s, LPSTR d, DWORD len)
{
WCHAR* bufW;
if ( !s || !d ) return FALSE;
bufW = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
if (bufW) {
MultiByteToWideChar(CP_ACP, 0, s, len, bufW, len);
WideCharToMultiByte(CP_OEMCP, 0, bufW, len, d, len, NULL, NULL);
HeapFree(GetProcessHeap(), 0, bufW);
}
return TRUE;
}
/*
* @implemented
*/
BOOL
WINAPI
CharToOemBuffW(LPCWSTR s, LPSTR d, DWORD len)
{
if (!s || !d)
return FALSE;
WideCharToMultiByte(CP_OEMCP, 0, s, len, d, len, NULL, NULL);
return TRUE;
}
/*
* @implemented
*/
BOOL
WINAPI
CharToOemW(LPCWSTR s, LPSTR d)
{
if ( !s || !d ) return FALSE;
return CharToOemBuffW(s, d, wcslen(s) + 1);
}
/*
* @implemented
*/
LPSTR WINAPI CharUpperA(LPSTR str)
{
if (!HIWORD(str))
{
char ch = LOWORD(str);
CharUpperBuffA( &ch, 1 );
return (LPSTR)(UINT_PTR)(BYTE)ch;
}
_SEH2_TRY
{
CharUpperBuffA( str, strlen(str) );
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
SetLastError( ERROR_INVALID_PARAMETER );
_SEH2_YIELD(return NULL);
}
_SEH2_END;
return str;
}
/*
* @implemented
*/
DWORD
WINAPI
CharUpperBuffA(LPSTR str, DWORD len)
{
DWORD lenW;
WCHAR* strW;
if (!str) return 0; /* YES */
lenW = MultiByteToWideChar(CP_ACP, 0, str, len, NULL, 0);
strW = HeapAlloc(GetProcessHeap(), 0, lenW * sizeof(WCHAR));
if (strW) {
MultiByteToWideChar(CP_ACP, 0, str, len, strW, lenW);
CharUpperBuffW(strW, lenW);
len = WideCharToMultiByte(CP_ACP, 0, strW, lenW, str, len, NULL, NULL);
HeapFree(GetProcessHeap(), 0, strW);
return len;
}
return 0;
}
/*
* @implemented
*/
DWORD
WINAPI
CharUpperBuffW(LPWSTR str, DWORD len)
{
DWORD ret = len;
if (!str) return 0; /* YES */
for (; len; len--, str++) *str = towupper(*str);
return ret;
}
/*
* @implemented
*/
LPWSTR
WINAPI
CharUpperW(LPWSTR x)
{
if (HIWORD(x)) return struprW(x);
else return (LPWSTR)((UINT_PTR)toupperW(LOWORD(x)));
}
/*
* @implemented
*/
BOOL
WINAPI
IsCharAlphaA(CHAR Ch)
{
WCHAR WCh;
MultiByteToWideChar(CP_ACP, 0, &Ch, 1, &WCh, 1);
return IsCharAlphaW(WCh);
}
/*
* @implemented
*/
BOOL
WINAPI
IsCharAlphaNumericA(CHAR Ch)
{
WCHAR WCh;
MultiByteToWideChar(CP_ACP, 0, &Ch, 1, &WCh, 1);
return IsCharAlphaNumericW(WCh);
}
/*
* @implemented
*/
BOOL
WINAPI
IsCharAlphaNumericW(WCHAR Ch)
{
return (GetC1Type(Ch) & (C1_ALPHA|C1_DIGIT)) != 0;
}
/*
* @implemented
*/
BOOL
WINAPI
IsCharAlphaW(WCHAR Ch)
{
return (GetC1Type(Ch) & C1_ALPHA) != 0;
}
/*
* @implemented
*/
BOOL
WINAPI
IsCharLowerA(CHAR Ch)
{
WCHAR WCh;
MultiByteToWideChar(CP_ACP, 0, &Ch, 1, &WCh, 1);
return IsCharLowerW(WCh);
}
/*
* @implemented
*/
BOOL
WINAPI
IsCharLowerW(WCHAR Ch)
{
return (GetC1Type(Ch) & C1_LOWER) != 0;
}
/*
* @implemented
*/
BOOL
WINAPI
IsCharUpperA(CHAR Ch)
{
WCHAR WCh;
MultiByteToWideChar(CP_ACP, 0, &Ch, 1, &WCh, 1);
return IsCharUpperW(WCh);
}
/*
* @implemented
*/
BOOL
WINAPI
IsCharUpperW(WCHAR Ch)
{
return (GetC1Type(Ch) & C1_UPPER) != 0;
}
/*
* @implemented
*/
BOOL
WINAPI
OemToCharA(LPCSTR s, LPSTR d)
{
if ( !s || !d ) return FALSE;
return OemToCharBuffA(s, d, strlen(s) + 1);
}
/*
* @implemented
*/
BOOL WINAPI OemToCharBuffA(LPCSTR s, LPSTR d, DWORD len)
{
WCHAR* bufW;
if ( !s || !d ) return FALSE;
bufW = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
if (bufW) {
MultiByteToWideChar(CP_OEMCP, 0, s, len, bufW, len);
WideCharToMultiByte(CP_ACP, 0, bufW, len, d, len, NULL, NULL);
HeapFree(GetProcessHeap(), 0, bufW);
}
return TRUE;
}
/*
* @implemented
*/
BOOL
WINAPI
OemToCharBuffW(LPCSTR s, LPWSTR d, DWORD len)
{
if ( !s || !d ) return FALSE;
MultiByteToWideChar(CP_OEMCP, 0, s, len, d, len);
return TRUE;
}
/*
* @implemented
*/
BOOL WINAPI OemToCharW(LPCSTR s, LPWSTR d)
{
if ( !s || !d ) return FALSE;
return OemToCharBuffW(s, d, strlen(s) + 1);
}
/* EOF */