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wine/memory/string.c

601 lines
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/*
* String functions
*
* Copyright 1993 Yngvi Sigurjonsson
* Copyright 1996 Alexandre Julliard
*/
#include <ctype.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "wine/winbase16.h"
#include "wine/winuser16.h"
#include "wine/keyboard16.h"
#include "wine/exception.h"
#include "wine/unicode.h"
#include "winerror.h"
#include "ldt.h"
#include "debugtools.h"
#include "winnls.h"
DEFAULT_DEBUG_CHANNEL(string);
/* Internaly used by strchr family functions */
static BOOL ChrCmpA( WORD word1, WORD word2);
/* filter for page-fault exceptions */
static WINE_EXCEPTION_FILTER(page_fault)
{
if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
return EXCEPTION_EXECUTE_HANDLER;
return EXCEPTION_CONTINUE_SEARCH;
}
/***********************************************************************
* hmemcpy (KERNEL.348)
*/
void WINAPI hmemcpy16( LPVOID dst, LPCVOID src, LONG count )
{
memcpy( dst, src, count );
}
/***********************************************************************
* lstrcat16 (KERNEL.89)
*/
SEGPTR WINAPI lstrcat16( SEGPTR dst, LPCSTR src )
{
/* Windows does not check for NULL pointers here, so we don't either */
strcat( (LPSTR)PTR_SEG_TO_LIN(dst), src );
return dst;
}
/***********************************************************************
* lstrcatA (KERNEL32.599)
*/
LPSTR WINAPI lstrcatA( LPSTR dst, LPCSTR src )
{
__TRY
{
strcat( dst, src );
}
__EXCEPT(page_fault)
{
SetLastError( ERROR_INVALID_PARAMETER );
return NULL;
}
__ENDTRY
return dst;
}
/***********************************************************************
* lstrcatW (KERNEL32.600)
*/
LPWSTR WINAPI lstrcatW( LPWSTR dst, LPCWSTR src )
{
__TRY
{
strcatW( dst, src );
}
__EXCEPT(page_fault)
{
SetLastError( ERROR_INVALID_PARAMETER );
return NULL;
}
__ENDTRY
return dst;
}
/***********************************************************************
* lstrcatn16 (KERNEL.352)
*/
SEGPTR WINAPI lstrcatn16( SEGPTR dst, LPCSTR src, INT16 n )
{
LPSTR p = (LPSTR)PTR_SEG_TO_LIN(dst);
while (*p) p++;
if ((n -= (p - (LPSTR)PTR_SEG_TO_LIN(dst))) <= 0) return dst;
lstrcpynA( p, src, n );
return dst;
}
/***********************************************************************
* lstrcmp16 (USER.430)
*/
INT16 WINAPI lstrcmp16( LPCSTR str1, LPCSTR str2 )
{
return (INT16)strcmp( str1, str2 );
}
/***********************************************************************
* lstrcmpA (KERNEL.602)
*/
INT WINAPI lstrcmpA( LPCSTR str1, LPCSTR str2 )
{
return CompareStringA(LOCALE_SYSTEM_DEFAULT,0,str1,-1,str2,-1) - 2 ;
}
/***********************************************************************
* lstrcmpW (KERNEL.603)
* FIXME : should call CompareStringW, when it is implemented.
* This implementation is not "word sort", as it should.
*/
INT WINAPI lstrcmpW( LPCWSTR str1, LPCWSTR str2 )
{
TRACE("%s and %s\n",
debugstr_w (str1), debugstr_w (str2));
if (!str1 || !str2) {
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
while (*str1 && (*str1 == *str2)) { str1++; str2++; }
return (INT)(*str1 - *str2);
}
/***********************************************************************
* lstrcmpi16 (USER.471)
*/
INT16 WINAPI lstrcmpi16( LPCSTR str1, LPCSTR str2 )
{
return (INT16)lstrcmpiA( str1, str2 );
}
/***********************************************************************
* lstrcmpiA (KERNEL32.605)
*/
INT WINAPI lstrcmpiA( LPCSTR str1, LPCSTR str2 )
{ TRACE("strcmpi %s and %s\n",
debugstr_a (str1), debugstr_a (str2));
return CompareStringA(LOCALE_SYSTEM_DEFAULT,NORM_IGNORECASE,str1,-1,str2,-1)-2;
}
/***********************************************************************
* lstrcmpiW (KERNEL32.606)
*/
INT WINAPI lstrcmpiW( LPCWSTR str1, LPCWSTR str2 )
{
if (!str1 || !str2) {
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
return strcmpiW( str1, str2 );
}
/***********************************************************************
* lstrcpy16 (KERNEL.88)
*/
SEGPTR WINAPI lstrcpy16( SEGPTR dst, LPCSTR src )
{
if (!lstrcpyA( PTR_SEG_TO_LIN(dst), src )) dst = 0;
return dst;
}
/***********************************************************************
* lstrcpyA (KERNEL32.608)
*/
LPSTR WINAPI lstrcpyA( LPSTR dst, LPCSTR src )
{
__TRY
{
/* this is how Windows does it */
memmove( dst, src, strlen(src)+1 );
}
__EXCEPT(page_fault)
{
ERR("(%p, %p): page fault occurred ! Caused by bug ?\n", dst, src);
SetLastError( ERROR_INVALID_PARAMETER );
return NULL;
}
__ENDTRY
return dst;
}
/***********************************************************************
* lstrcpyW (KERNEL32.609)
*/
LPWSTR WINAPI lstrcpyW( LPWSTR dst, LPCWSTR src )
{
__TRY
{
strcpyW( dst, src );
}
__EXCEPT(page_fault)
{
SetLastError( ERROR_INVALID_PARAMETER );
return NULL;
}
__ENDTRY
return dst;
}
/***********************************************************************
* lstrcpyn16 (KERNEL.353)
*/
SEGPTR WINAPI lstrcpyn16( SEGPTR dst, LPCSTR src, INT16 n )
{
lstrcpynA( (LPSTR)PTR_SEG_TO_LIN(dst), src, n );
return dst;
}
/***********************************************************************
* lstrcpynA (KERNEL32.611)
* Note: this function differs from the UNIX strncpy, it _always_ writes
* a terminating \0
*/
LPSTR WINAPI lstrcpynA( LPSTR dst, LPCSTR src, INT n )
{
LPSTR p = dst;
TRACE("(%p, %s, %i)\n", dst, debugstr_an(src,n), n);
/* In real windows the whole function is protected by an exception handler
* that returns ERROR_INVALID_PARAMETER on faulty parameters
* We currently just check for NULL.
*/
if (!dst || !src) {
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
while ((n-- > 1) && *src) *p++ = *src++;
if (n >= 0) *p = 0;
return dst;
}
/***********************************************************************
* lstrcpynW (KERNEL32.612)
* Note: this function differs from the UNIX strncpy, it _always_ writes
* a terminating \0
*/
LPWSTR WINAPI lstrcpynW( LPWSTR dst, LPCWSTR src, INT n )
{
LPWSTR p = dst;
TRACE("(%p, %s, %i)\n", dst, debugstr_wn(src,n), n);
/* In real windows the whole function is protected by an exception handler
* that returns ERROR_INVALID_PARAMETER on faulty parameters
* We currently just check for NULL.
*/
if (!dst || !src) {
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
while ((n-- > 1) && *src) *p++ = *src++;
if (n >= 0) *p = 0;
return dst;
}
/***********************************************************************
* lstrlen16 (KERNEL.90)
*/
INT16 WINAPI lstrlen16( LPCSTR str )
{
return (INT16)lstrlenA( str );
}
/***********************************************************************
* lstrlenA (KERNEL32.614)
*/
INT WINAPI lstrlenA( LPCSTR str )
{
INT ret;
__TRY
{
ret = strlen(str);
}
__EXCEPT(page_fault)
{
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
__ENDTRY
return ret;
}
/***********************************************************************
* lstrlenW (KERNEL32.615)
*/
INT WINAPI lstrlenW( LPCWSTR str )
{
INT ret;
__TRY
{
ret = strlenW(str);
}
__EXCEPT(page_fault)
{
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
__ENDTRY
return ret;
}
/***********************************************************************
* lstrcpyAtoW (Not a Windows API)
*/
LPWSTR WINAPI lstrcpyAtoW( LPWSTR dst, LPCSTR src )
{
MultiByteToWideChar( CP_ACP, 0, src, -1, dst, 0x7fffffff );
return dst;
}
/***********************************************************************
* lstrcpyWtoA (Not a Windows API)
*/
LPSTR WINAPI lstrcpyWtoA( LPSTR dst, LPCWSTR src )
{
WideCharToMultiByte( CP_ACP, 0, src, -1, dst, 0x7fffffff, NULL, NULL );
return dst;
}
/***********************************************************************
* lstrcpynAtoW (Not a Windows API)
* Note: this function differs from the UNIX strncpy, it _always_ writes
* a terminating \0
*/
LPWSTR WINAPI lstrcpynAtoW( LPWSTR dst, LPCSTR src, INT n )
{
if (n > 0 && !MultiByteToWideChar( CP_ACP, 0, src, -1, dst, n )) dst[n-1] = 0;
return dst;
}
/***********************************************************************
* lstrcpynWtoA (Not a Windows API)
* Note: this function differs from the UNIX strncpy, it _always_ writes
* a terminating \0
*
* The terminating zero should be written at the end of the string, not
* the end of the buffer, as some programs specify the wrong size for
* the buffer (eg. winnt's sol.exe)
*/
LPSTR WINAPI lstrcpynWtoA( LPSTR dst, LPCWSTR src, INT n )
{
if (n > 0 && !WideCharToMultiByte( CP_ACP, 0, src, -1, dst, n, NULL, NULL )) dst[n-1] = 0;
return dst;
}
/***********************************************************************
* UnicodeToAnsi (KERNEL.434)
*/
INT16 WINAPI UnicodeToAnsi16( LPCWSTR src, LPSTR dst, INT16 codepage )
{
if ( codepage == -1 )
codepage = CP_ACP;
return WideCharToMultiByte( codepage, 0, src, -1, dst, 0x7fffffff, NULL, NULL );
}
/***********************************************************************
* Copy (GDI.250)
*/
void WINAPI Copy16( LPVOID src, LPVOID dst, WORD size )
{
memcpy( dst, src, size );
}
/***********************************************************************
* AnsiToOem16 (KEYBOARD.5)
*/
INT16 WINAPI AnsiToOem16( LPCSTR s, LPSTR d )
{
CharToOemA( s, d );
return -1;
}
/***********************************************************************
* OemToAnsi16 (KEYBOARD.6)
*/
INT16 WINAPI OemToAnsi16( LPCSTR s, LPSTR d )
{
OemToCharA( s, d );
return -1;
}
/***********************************************************************
* AnsiToOemBuff16 (KEYBOARD.134)
*/
void WINAPI AnsiToOemBuff16( LPCSTR s, LPSTR d, UINT16 len )
{
if (len != 0) CharToOemBuffA( s, d, len );
}
/***********************************************************************
* OemToAnsiBuff16 (KEYBOARD.135)
*/
void WINAPI OemToAnsiBuff16( LPCSTR s, LPSTR d, UINT16 len )
{
if (len != 0) OemToCharBuffA( s, d, len );
}
/***********************************************************************
* CharToOemA (USER32.37)
*/
BOOL WINAPI CharToOemA( LPCSTR s, LPSTR d )
{
if ( !s || !d ) return TRUE;
return CharToOemBuffA( s, d, strlen( s ) + 1 );
}
/***********************************************************************
* CharToOemBuffA (USER32.38)
*/
BOOL WINAPI CharToOemBuffA( LPCSTR s, LPSTR d, DWORD len )
{
WCHAR *bufW;
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;
}
/***********************************************************************
* CharToOemBuffW (USER32.39)
*/
BOOL WINAPI CharToOemBuffW( LPCWSTR s, LPSTR d, DWORD len )
{
if ( !s || !d ) return TRUE;
WideCharToMultiByte( CP_OEMCP, 0, s, len, d, len, NULL, NULL );
return TRUE;
}
/***********************************************************************
* CharToOemW (USER32.40)
*/
BOOL WINAPI CharToOemW( LPCWSTR s, LPSTR d )
{
return CharToOemBuffW( s, d, strlenW( s ) + 1 );
}
/***********************************************************************
* OemToCharA (USER32.402)
*/
BOOL WINAPI OemToCharA( LPCSTR s, LPSTR d )
{
return OemToCharBuffA( s, d, strlen( s ) + 1 );
}
/***********************************************************************
* OemToCharBuffA (USER32.403)
*/
BOOL WINAPI OemToCharBuffA( LPCSTR s, LPSTR d, DWORD len )
{
WCHAR *bufW;
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;
}
/***********************************************************************
* OemToCharBuffW (USER32.404)
*/
BOOL WINAPI OemToCharBuffW( LPCSTR s, LPWSTR d, DWORD len )
{
MultiByteToWideChar( CP_OEMCP, 0, s, len, d, len );
return TRUE;
}
/***********************************************************************
* OemToCharW (USER32.405)
*/
BOOL WINAPI OemToCharW( LPCSTR s, LPWSTR d )
{
return OemToCharBuffW( s, d, strlen( s ) + 1 );
}
/***********************************************************************
* lstrrchr (Not a Windows API)
*
* This is the implementation meant to be invoked from within
* COMCTL32_StrRChrA and shell32(TODO)...
*
* Return a pointer to the last occurence of wMatch in lpStart
* not looking further than lpEnd...
*/
LPSTR WINAPI lstrrchr( LPCSTR lpStart, LPCSTR lpEnd, WORD wMatch )
{
LPCSTR lpGotIt = NULL;
TRACE("(%p, %p, %x)\n", lpStart, lpEnd, wMatch);
if (!lpEnd) lpEnd = lpStart + strlen(lpStart);
for(; lpStart < lpEnd; lpStart = CharNextA(lpStart))
if (!ChrCmpA( GET_WORD(lpStart), wMatch))
lpGotIt = lpStart;
return ((LPSTR)lpGotIt);
}
/***********************************************************************
* ChrCmpW
* This fuction returns FALSE if both words match, TRUE otherwise...
*/
static BOOL ChrCmpW( WORD word1, WORD word2) {
return (word1 != word2);
}
/***********************************************************************
* lstrrchrw (Not a Windows API)
*
* This is the implementation meant to be invoked form within
* COMCTL32_StrRChrW and shell32(TODO)...
*
* Return a pointer to the last occurence of wMatch in lpStart
* not looking further than lpEnd...
*/
LPWSTR WINAPI lstrrchrw( LPCWSTR lpStart, LPCWSTR lpEnd, WORD wMatch )
{
LPCWSTR lpGotIt = NULL;
TRACE("(%p, %p, %x)\n", lpStart, lpEnd, wMatch);
if (!lpEnd) lpEnd = lpStart + lstrlenW(lpStart);
for(; lpStart < lpEnd; lpStart = CharNextW(lpStart))
if (!ChrCmpW( GET_WORD(lpStart), wMatch))
lpGotIt = lpStart;
return (LPWSTR)lpGotIt;
}
/***********************************************************************
* ChrCmpA
* This fuction returns FALSE if both words match, TRUE otherwise...
*/
static BOOL ChrCmpA( WORD word1, WORD word2) {
if (LOBYTE(word1) == LOBYTE(word2)) {
if (IsDBCSLeadByte(LOBYTE(word1))) {
return (word1 != word2);
}
return FALSE;
}
return TRUE;
}
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