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/* -------------------------------------------------------------------- */
#include "StdAfx.h"
tstring tstringprintf(tstring strFormat,...) {
va_list vlist;
va_start(vlist, strFormat);
int mlen = (int)strFormat.length()+128;
TCHAR *text = (TCHAR*)malloc(mlen*sizeof(TCHAR));
_vsntprintf(text,mlen,strFormat.c_str(),vlist);
va_end(vlist);
strFormat = text;
free(text);
return strFormat;
}
// Returns true if the unicode buffer only contains 7-bit characters.
BOOL IsUnicodeAscii(const wchar_t* pBuffer, int nSize)
{
BOOL bResult = TRUE;
int nIndex;
for (nIndex = 0; nIndex < nSize; nIndex++) {
if (pBuffer[nIndex] > 0x7F) {
bResult = FALSE;
break;
}
}
return bResult;
}
wstring
toWideString( const char* pStr , int len )
{
if ( pStr == NULL )
return L"" ;
//ASSERT_PTR( pStr ) ;
ASSERT( len >= 0 || len == -1 , _T("Invalid string length: ") << len ) ;
// figure out how many wide characters we are going to get
int nChars = MultiByteToWideChar( CP_ACP , 0 , pStr , len , NULL , 0 ) ;
if ( len == -1 )
-- nChars ;
if ( nChars == 0 )
return L"" ;
// convert the narrow string to a wide string
// nb: slightly naughty to write directly into the string like this
wstring buf ;
buf.resize( nChars ) ;
MultiByteToWideChar( CP_ACP , 0 , pStr , len ,
const_cast<wchar_t*>(buf.c_str()) , nChars ) ;
return buf ;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
string
toNarrowString( const wchar_t* pStr , int len )
{
//ASSERT_PTR( pStr ) ;
ASSERT( len >= 0 || len == -1 , _T("Invalid string length: ") << len ) ;
// figure out how many narrow characters we are going to get
int nChars = WideCharToMultiByte( CP_ACP , 0 ,
pStr , len , NULL , 0 , NULL , NULL ) ;
if ( len == -1 )
-- nChars ;
if ( nChars == 0 )
return "" ;
// convert the wide string to a narrow string
// nb: slightly naughty to write directly into the string like this
string buf ;
buf.resize( nChars ) ;
char *test = (char*)malloc((nChars+1)*sizeof(char));
WideCharToMultiByte( CP_ACP , 0 , pStr , len ,
const_cast<char*>(buf.c_str()), nChars , NULL , NULL ) ;
return buf ;
}
/// get lower string
tstring toLower(const tstring &i_str)
{
tstring str(i_str);
for (size_t i = 0; i < str.size(); ++ i)
{
if (_istlead(str[i]))
++ i;
else
str[i] = tolower(str[i]);
}
return str;
}
/*
* decodes UTF-8 to unicode
* taken from jabber protocol implementation and slightly modified
* free() the return value
*/
#if defined(_UNICODE)
tstring Utf8_Decode(const char *str)
{
tstring strRes = _T("");
int i, len;
char *p;
WCHAR *wszTemp = NULL;
if (str == NULL)
return strRes;
len = strlen(str);
if ((wszTemp = (WCHAR *) malloc(sizeof(TCHAR) * (len + 2))) == NULL)
return strRes;
p = (char *) str;
i = 0;
while (*p) {
if ((*p & 0x80) == 0)
wszTemp[i++] = *(p++);
else if ((*p & 0xe0) == 0xe0) {
wszTemp[i] = (*(p++) & 0x1f) << 12;
wszTemp[i] |= (*(p++) & 0x3f) << 6;
wszTemp[i++] |= (*(p++) & 0x3f);
}
else {
wszTemp[i] = (*(p++) & 0x3f) << 6;
wszTemp[i++] |= (*(p++) & 0x3f);
}
}
wszTemp[i] = (TCHAR)'\0';
strRes = wszTemp;
free(wszTemp);
return strRes;
}
/*
* convert unicode to UTF-8
* code taken from jabber protocol implementation and slightly modified.
* free() the return value
*/
string Utf8_Encode(const WCHAR *str)
{
string strRes = "";
unsigned char *szOut = NULL;
int len, i;
const WCHAR *wszTemp, *w;
if (str == NULL)
return strRes;
wszTemp = str;
// Convert unicode to utf8
len = 0;
for (w=wszTemp; *w; w++) {
if (*w < 0x0080) len++;
else if (*w < 0x0800) len += 2;
else len += 3;
}
if ((szOut = (unsigned char *) malloc(len + 2)) == NULL)
return strRes;
i = 0;
for (w=wszTemp; *w; w++) {
if (*w < 0x0080)
szOut[i++] = (unsigned char) *w;
else if (*w < 0x0800) {
szOut[i++] = 0xc0 | ((*w) >> 6);
szOut[i++] = 0x80 | ((*w) & 0x3f);
}
else {
szOut[i++] = 0xe0 | ((*w) >> 12);
szOut[i++] = 0x80 | (((*w) >> 6) & 0x3f);
szOut[i++] = 0x80 | ((*w) & 0x3f);
}
}
szOut[i] = '\0';
strRes = (char *) szOut;
free(szOut);
return strRes;
}
#endif
// Zufallszahlen
int GetRandomInt(int iMin, int iMax)
{
double r = ((double)rand() / (RAND_MAX +1));
int iRes = r*(iMax + 1- iMin) + iMin;
if(iRes > iMax)
Sleep(1);
return iRes;
}
double GetRandomDouble()
{
return ((double)rand() / (RAND_MAX +1));
}
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