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Overview
| Comment: | More refactoring and cleanup work on the Win32 string conversion and utility routines. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | altShellFix |
| Files: | files | file ages | folders |
| SHA1: |
02ccb444a3d0b9a52ffd04cae9d9b6f6 |
| User & Date: | mistachkin 2016-04-04 02:05:46 |
Context
|
2016-04-04
| ||
| 02:16 | Experimental changes to the command line shell to make it work better with Unicode on Windows. (check-in: 74183a5f user: mistachkin tags: altShellFix) | |
| 02:05 | More refactoring and cleanup work on the Win32 string conversion and utility routines. (check-in: 02ccb444 user: mistachkin tags: altShellFix) | |
|
2016-04-03
| ||
| 22:44 | Revise and enhance the Win32 string conversion routines. (check-in: 345860c9 user: mistachkin tags: altShellFix) | |
Changes
Changes to src/os_win.c.
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*/
void sqlite3_win32_write_debug(const char *zBuf, int nBuf){
char zDbgBuf[SQLITE_WIN32_DBG_BUF_SIZE];
int nMin = MIN(nBuf, (SQLITE_WIN32_DBG_BUF_SIZE - 1)); /* may be negative. */
if( nMin<-1 ) nMin = -1; /* all negative values become -1. */
assert( nMin==-1 || nMin==0 || nMin<SQLITE_WIN32_DBG_BUF_SIZE );
#if defined(SQLITE_WIN32_HAS_ANSI)
if( nMin>0 ){
memset(zDbgBuf, 0, SQLITE_WIN32_DBG_BUF_SIZE);
memcpy(zDbgBuf, zBuf, nMin);
osOutputDebugStringA(zDbgBuf);
}else{
osOutputDebugStringA(zBuf);
................................................................................
void sqlite3MemSetDefault(void){
sqlite3_config(SQLITE_CONFIG_MALLOC, sqlite3MemGetWin32());
}
#endif /* SQLITE_WIN32_MALLOC */
/*
** Convert a UTF-8 string to Microsoft Unicode (UTF-16?).
**
** Space to hold the returned string is obtained from malloc.
*/
static LPWSTR winUtf8ToUnicode(const char *zText){
int nChar;
LPWSTR zWideText;
nChar = osMultiByteToWideChar(CP_UTF8, 0, zText, -1, NULL, 0);
if( nChar==0 ){
................................................................................
sqlite3_free(zWideText);
zWideText = 0;
}
return zWideText;
}
/*
** Convert Microsoft Unicode to UTF-8. Space to hold the returned string is
** obtained from sqlite3_malloc().
*/
static char *winUnicodeToUtf8(LPCWSTR zWideText){
int nByte;
char *zText;
nByte = osWideCharToMultiByte(CP_UTF8, 0, zWideText, -1, 0, 0, 0, 0);
if( nByte == 0 ){
................................................................................
sqlite3_free(zText);
zText = 0;
}
return zText;
}
/*
** Convert an ANSI string to Microsoft Unicode, based on the
** current codepage settings for file apis.
**
** Space to hold the returned string is obtained
** from sqlite3_malloc.
*/
static LPWSTR winMbcsToUnicode(const char *zText, int useAnsi){
int nByte;
LPWSTR zMbcsFilename;
int codepage = useAnsi ? CP_ACP : CP_OEMCP;
nByte = osMultiByteToWideChar(codepage, 0, zText, -1, NULL,
0)*sizeof(WCHAR);
if( nByte==0 ){
return 0;
}
zMbcsFilename = sqlite3MallocZero( nByte*sizeof(zMbcsFilename[0]) );
if( zMbcsFilename==0 ){
return 0;
}
nByte = osMultiByteToWideChar(codepage, 0, zText, -1, zMbcsFilename,
nByte);
if( nByte==0 ){
sqlite3_free(zMbcsFilename);
zMbcsFilename = 0;
}
return zMbcsFilename;
}
/*
** Convert Microsoft Unicode to multi-byte character string, based on the
** user's ANSI codepage.
**
** Space to hold the returned string is obtained from
** sqlite3_malloc().
*/
static char *winUnicodeToMbcs(LPCWSTR zWideText, int useAnsi){
int nByte;
char *zText;
int codepage = useAnsi ? CP_ACP : CP_OEMCP;
nByte = osWideCharToMultiByte(codepage, 0, zWideText, -1, 0, 0, 0, 0);
................................................................................
sqlite3_free(zText);
zText = 0;
}
return zText;
}
/*
** Convert multibyte character string to UTF-8. Space to hold the
** returned string is obtained from sqlite3_malloc().
*/
char *sqlite3_win32_mbcs_to_utf8(const char *zText){
char *zTextUtf8;
LPWSTR zTmpWide;
zTmpWide = winMbcsToUnicode(zText, osAreFileApisANSI());
if( zTmpWide==0 ){
return 0;
}
zTextUtf8 = winUnicodeToUtf8(zTmpWide);
sqlite3_free(zTmpWide);
return zTextUtf8;
}
/*
** Convert multibyte character string to UTF-8 using the ANSI codepage.
** Space to hold the returned string is obtained from sqlite3_malloc().
*/
char *sqlite3_win32_mbcs_to_utf8_via_ansi(const char *zText){
char *zTextUtf8;
LPWSTR zTmpWide;
zTmpWide = winMbcsToUnicode(zText, 1);
if( zTmpWide==0 ){
return 0;
}
zTextUtf8 = winUnicodeToUtf8(zTmpWide);
sqlite3_free(zTmpWide);
return zTextUtf8;
}
/*
** Convert multibyte character string to UTF-8 using the OEM codepage.
** Space to hold the returned string is obtained from sqlite3_malloc().
*/
char *sqlite3_win32_mbcs_to_utf8_via_oem(const char *zText){
char *zTextUtf8;
LPWSTR zTmpWide;
zTmpWide = winMbcsToUnicode(zText, 0);
if( zTmpWide==0 ){
return 0;
}
zTextUtf8 = winUnicodeToUtf8(zTmpWide);
sqlite3_free(zTmpWide);
return zTextUtf8;
}
/*
** Convert UTF-8 to multibyte character string. Space to hold the
** returned string is obtained from sqlite3_malloc().
*/
char *sqlite3_win32_utf8_to_mbcs(const char *zText){
char *zTextMbcs;
LPWSTR zTmpWide;
zTmpWide = winUtf8ToUnicode(zText);
if( zTmpWide==0 ){
return 0;
}
zTextMbcs = winUnicodeToMbcs(zTmpWide, osAreFileApisANSI());
sqlite3_free(zTmpWide);
return zTextMbcs;
}
/*
** Convert UTF-8 to multibyte character string using the ANSI codepage.
** Space to hold the returned string is obtained from sqlite3_malloc().
*/
char *sqlite3_win32_utf8_to_mbcs_via_ansi(const char *zText){
char *zTextMbcs;
LPWSTR zTmpWide;
zTmpWide = winUtf8ToUnicode(zText);
if( zTmpWide==0 ){
return 0;
}
zTextMbcs = winUnicodeToMbcs(zTmpWide, 1);
sqlite3_free(zTmpWide);
return zTextMbcs;
}
/*
** Convert UTF-8 to multibyte character string using the OEM codepage.
** Space to hold the returned string is obtained from sqlite3_malloc().
*/
char *sqlite3_win32_utf8_to_mbcs_via_oem(const char *zText){
char *zTextMbcs;
LPWSTR zTmpWide;
zTmpWide = winUtf8ToUnicode(zText);
if( zTmpWide==0 ){
return 0;
}
zTextMbcs = winUnicodeToMbcs(zTmpWide, 0);
sqlite3_free(zTmpWide);
return zTextMbcs;
}
/*
** This function sets the data directory or the temporary directory based on
** the provided arguments. The type argument must be 1 in order to set the
** data directory or 2 in order to set the temporary directory. The zValue
** argument is the name of the directory to use. The return value will be
................................................................................
0,
(LPSTR) &zTemp,
0,
0);
if( dwLen > 0 ){
/* allocate a buffer and convert to UTF8 */
sqlite3BeginBenignMalloc();
zOut = sqlite3_win32_mbcs_to_utf8(zTemp);
sqlite3EndBenignMalloc();
/* free the system buffer allocated by FormatMessage */
osLocalFree(zTemp);
}
}
#endif
if( 0 == dwLen ){
................................................................................
static char *winConvertToUtf8Filename(const void *zFilename){
char *zConverted = 0;
if( osIsNT() ){
zConverted = winUnicodeToUtf8(zFilename);
}
#ifdef SQLITE_WIN32_HAS_ANSI
else{
zConverted = sqlite3_win32_mbcs_to_utf8(zFilename);
}
#endif
/* caller will handle out of memory */
return zConverted;
}
#endif
................................................................................
static void *winConvertFromUtf8Filename(const char *zFilename){
void *zConverted = 0;
if( osIsNT() ){
zConverted = winUtf8ToUnicode(zFilename);
}
#ifdef SQLITE_WIN32_HAS_ANSI
else{
zConverted = sqlite3_win32_utf8_to_mbcs(zFilename);
}
#endif
/* caller will handle out of memory */
return zConverted;
}
/*
................................................................................
}
if( osGetTempPathA(nMax, zMbcsPath)==0 ){
sqlite3_free(zBuf);
OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_GETTEMPPATH\n"));
return winLogError(SQLITE_IOERR_GETTEMPPATH, osGetLastError(),
"winGetTempname3", 0);
}
zUtf8 = sqlite3_win32_mbcs_to_utf8(zMbcsPath);
if( zUtf8 ){
sqlite3_snprintf(nMax, zBuf, "%s", zUtf8);
sqlite3_free(zUtf8);
}else{
sqlite3_free(zBuf);
OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_NOMEM\n"));
return SQLITE_IOERR_NOMEM_BKPT;
................................................................................
if( nByte==0 ){
sqlite3_free(zConverted);
sqlite3_free(zTemp);
return winLogError(SQLITE_CANTOPEN_FULLPATH, osGetLastError(),
"winFullPathname4", zRelative);
}
sqlite3_free(zConverted);
zOut = sqlite3_win32_mbcs_to_utf8(zTemp);
sqlite3_free(zTemp);
}
#endif
if( zOut ){
sqlite3_snprintf(MIN(nFull, pVfs->mxPathname), zFull, "%s", zOut);
sqlite3_free(zOut);
return SQLITE_OK;
|
> > > > > > | | | > | | | | < | | | | | | | | | | < | > | | < < < < < < < < < < < < < < < < < | | < | < < < < < < < < < < < < < < < | | | | < | > | | > | > > > > | < > > > > > > > > > < < > > > > > > > > > > > > > > | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | | | | | | | | | | | | | < | | | | | |
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*/
void sqlite3_win32_write_debug(const char *zBuf, int nBuf){
char zDbgBuf[SQLITE_WIN32_DBG_BUF_SIZE];
int nMin = MIN(nBuf, (SQLITE_WIN32_DBG_BUF_SIZE - 1)); /* may be negative. */
if( nMin<-1 ) nMin = -1; /* all negative values become -1. */
assert( nMin==-1 || nMin==0 || nMin<SQLITE_WIN32_DBG_BUF_SIZE );
#ifdef SQLITE_ENABLE_API_ARMOR
if( !zBuf ){
(void)SQLITE_MISUSE_BKPT;
return;
}
#endif
#if defined(SQLITE_WIN32_HAS_ANSI)
if( nMin>0 ){
memset(zDbgBuf, 0, SQLITE_WIN32_DBG_BUF_SIZE);
memcpy(zDbgBuf, zBuf, nMin);
osOutputDebugStringA(zDbgBuf);
}else{
osOutputDebugStringA(zBuf);
................................................................................
void sqlite3MemSetDefault(void){
sqlite3_config(SQLITE_CONFIG_MALLOC, sqlite3MemGetWin32());
}
#endif /* SQLITE_WIN32_MALLOC */
/*
** Convert a UTF-8 string to Microsoft Unicode.
**
** Space to hold the returned string is obtained from sqlite3_malloc().
*/
static LPWSTR winUtf8ToUnicode(const char *zText){
int nChar;
LPWSTR zWideText;
nChar = osMultiByteToWideChar(CP_UTF8, 0, zText, -1, NULL, 0);
if( nChar==0 ){
................................................................................
sqlite3_free(zWideText);
zWideText = 0;
}
return zWideText;
}
/*
** Convert a Microsoft Unicode string to UTF-8.
**
** Space to hold the returned string is obtained from sqlite3_malloc().
*/
static char *winUnicodeToUtf8(LPCWSTR zWideText){
int nByte;
char *zText;
nByte = osWideCharToMultiByte(CP_UTF8, 0, zWideText, -1, 0, 0, 0, 0);
if( nByte == 0 ){
................................................................................
sqlite3_free(zText);
zText = 0;
}
return zText;
}
/*
** Convert an ANSI string to Microsoft Unicode, using the ANSI or OEM
** code page.
**
** Space to hold the returned string is obtained from sqlite3_malloc().
*/
static LPWSTR winMbcsToUnicode(const char *zText, int useAnsi){
int nByte;
LPWSTR zMbcsText;
int codepage = useAnsi ? CP_ACP : CP_OEMCP;
nByte = osMultiByteToWideChar(codepage, 0, zText, -1, NULL,
0)*sizeof(WCHAR);
if( nByte==0 ){
return 0;
}
zMbcsText = sqlite3MallocZero( nByte*sizeof(WCHAR) );
if( zMbcsText==0 ){
return 0;
}
nByte = osMultiByteToWideChar(codepage, 0, zText, -1, zMbcsText,
nByte);
if( nByte==0 ){
sqlite3_free(zMbcsText);
zMbcsText = 0;
}
return zMbcsText;
}
/*
** Convert a Microsoft Unicode string to a multi-byte character string,
** using the ANSI or OEM code page.
**
** Space to hold the returned string is obtained from sqlite3_malloc().
*/
static char *winUnicodeToMbcs(LPCWSTR zWideText, int useAnsi){
int nByte;
char *zText;
int codepage = useAnsi ? CP_ACP : CP_OEMCP;
nByte = osWideCharToMultiByte(codepage, 0, zWideText, -1, 0, 0, 0, 0);
................................................................................
sqlite3_free(zText);
zText = 0;
}
return zText;
}
/*
** Convert a multi-byte character string to UTF-8.
**
** Space to hold the returned string is obtained from sqlite3_malloc().
*/
static char *winMbcsToUtf8(const char *zText, int useAnsi){
char *zTextUtf8;
LPWSTR zTmpWide;
zTmpWide = winMbcsToUnicode(zText, useAnsi);
if( zTmpWide==0 ){
return 0;
}
zTextUtf8 = winUnicodeToUtf8(zTmpWide);
sqlite3_free(zTmpWide);
return zTextUtf8;
}
/*
** Convert a UTF-8 string to a multi-byte character string.
**
** Space to hold the returned string is obtained from sqlite3_malloc().
*/
static char *winUtf8ToMbcs(const char *zText, int useAnsi){
char *zTextMbcs;
LPWSTR zTmpWide;
zTmpWide = winUtf8ToUnicode(zText);
if( zTmpWide==0 ){
return 0;
}
zTextMbcs = winUnicodeToMbcs(zTmpWide, useAnsi);
sqlite3_free(zTmpWide);
return zTextMbcs;
}
/*
** This is a public wrapper for the winUtf8ToUnicode() function.
*/
LPWSTR sqlite3_win32_utf8_to_unicode(const char *zText){
#ifdef SQLITE_ENABLE_API_ARMOR
if( !zText ){
(void)SQLITE_MISUSE_BKPT;
return 0;
}
#endif
#ifndef SQLITE_OMIT_AUTOINIT
if( sqlite3_initialize() ) return 0;
#endif
return winUtf8ToUnicode(zText);
}
/*
** This is a public wrapper for the winUnicodeToUtf8() function.
*/
char *sqlite3_win32_unicode_to_utf8(LPCWSTR zWideText){
#ifdef SQLITE_ENABLE_API_ARMOR
if( !zWideText ){
(void)SQLITE_MISUSE_BKPT;
return 0;
}
#endif
#ifndef SQLITE_OMIT_AUTOINIT
if( sqlite3_initialize() ) return 0;
#endif
return winUnicodeToUtf8(zWideText);
}
/*
** This is a public wrapper for the winMbcsToUtf8() function.
*/
char *sqlite3_win32_mbcs_to_utf8(const char *zText){
#ifdef SQLITE_ENABLE_API_ARMOR
if( !zText ){
(void)SQLITE_MISUSE_BKPT;
return 0;
}
#endif
#ifndef SQLITE_OMIT_AUTOINIT
if( sqlite3_initialize() ) return 0;
#endif
return winMbcsToUtf8(zText, osAreFileApisANSI());
}
/*
** This is a public wrapper for the winMbcsToUtf8() function.
*/
char *sqlite3_win32_mbcs_to_utf8_v2(const char *zText, int useAnsi){
#ifdef SQLITE_ENABLE_API_ARMOR
if( !zText ){
(void)SQLITE_MISUSE_BKPT;
return 0;
}
#endif
#ifndef SQLITE_OMIT_AUTOINIT
if( sqlite3_initialize() ) return 0;
#endif
return winMbcsToUtf8(zText, useAnsi);
}
/*
** This is a public wrapper for the winUtf8ToMbcs() function.
*/
char *sqlite3_win32_utf8_to_mbcs(const char *zText){
#ifdef SQLITE_ENABLE_API_ARMOR
if( !zText ){
(void)SQLITE_MISUSE_BKPT;
return 0;
}
#endif
#ifndef SQLITE_OMIT_AUTOINIT
if( sqlite3_initialize() ) return 0;
#endif
return winUtf8ToMbcs(zText, osAreFileApisANSI());
}
/*
** This is a public wrapper for the winUtf8ToMbcs() function.
*/
char *sqlite3_win32_utf8_to_mbcs_v2(const char *zText, int useAnsi){
#ifdef SQLITE_ENABLE_API_ARMOR
if( !zText ){
(void)SQLITE_MISUSE_BKPT;
return 0;
}
#endif
#ifndef SQLITE_OMIT_AUTOINIT
if( sqlite3_initialize() ) return 0;
#endif
return winUtf8ToMbcs(zText, useAnsi);
}
/*
** This function sets the data directory or the temporary directory based on
** the provided arguments. The type argument must be 1 in order to set the
** data directory or 2 in order to set the temporary directory. The zValue
** argument is the name of the directory to use. The return value will be
................................................................................
0,
(LPSTR) &zTemp,
0,
0);
if( dwLen > 0 ){
/* allocate a buffer and convert to UTF8 */
sqlite3BeginBenignMalloc();
zOut = winMbcsToUtf8(zTemp, osAreFileApisANSI());
sqlite3EndBenignMalloc();
/* free the system buffer allocated by FormatMessage */
osLocalFree(zTemp);
}
}
#endif
if( 0 == dwLen ){
................................................................................
static char *winConvertToUtf8Filename(const void *zFilename){
char *zConverted = 0;
if( osIsNT() ){
zConverted = winUnicodeToUtf8(zFilename);
}
#ifdef SQLITE_WIN32_HAS_ANSI
else{
zConverted = winMbcsToUtf8(zFilename, osAreFileApisANSI());
}
#endif
/* caller will handle out of memory */
return zConverted;
}
#endif
................................................................................
static void *winConvertFromUtf8Filename(const char *zFilename){
void *zConverted = 0;
if( osIsNT() ){
zConverted = winUtf8ToUnicode(zFilename);
}
#ifdef SQLITE_WIN32_HAS_ANSI
else{
zConverted = winUtf8ToMbcs(zFilename, osAreFileApisANSI());
}
#endif
/* caller will handle out of memory */
return zConverted;
}
/*
................................................................................
}
if( osGetTempPathA(nMax, zMbcsPath)==0 ){
sqlite3_free(zBuf);
OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_GETTEMPPATH\n"));
return winLogError(SQLITE_IOERR_GETTEMPPATH, osGetLastError(),
"winGetTempname3", 0);
}
zUtf8 = winMbcsToUtf8(zMbcsPath, osAreFileApisANSI());
if( zUtf8 ){
sqlite3_snprintf(nMax, zBuf, "%s", zUtf8);
sqlite3_free(zUtf8);
}else{
sqlite3_free(zBuf);
OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_NOMEM\n"));
return SQLITE_IOERR_NOMEM_BKPT;
................................................................................
if( nByte==0 ){
sqlite3_free(zConverted);
sqlite3_free(zTemp);
return winLogError(SQLITE_CANTOPEN_FULLPATH, osGetLastError(),
"winFullPathname4", zRelative);
}
sqlite3_free(zConverted);
zOut = winMbcsToUtf8(zTemp, osAreFileApisANSI());
sqlite3_free(zTemp);
}
#endif
if( zOut ){
sqlite3_snprintf(MIN(nFull, pVfs->mxPathname), zFull, "%s", zOut);
sqlite3_free(zOut);
return SQLITE_OK;
|