字符串操作（一）

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代码片段，来源于Arcemu开源项目。

（1）切分

using namespace std;vector<string> StrSplit(const string & src, const string & sep){vector<string> r;string s;for(string::const_iterator i = src.begin(); i != src.end(); i++){if(sep.find(*i) != string::npos){if(s.length()) r.push_back(s);s = "";}else{s += *i;}}if(s.length()) r.push_back(s);return r;}

（2）编码转换

// win32 only// cebernic added it// for multilanguage supports// --------------------------------------------------------------------------------------------------SERVER_DECL const char* _StringToUTF8(const char*   pASCIIBuf){#ifdef WIN32DWORD     UniCodeLen = MultiByteToWideChar(CP_ACP,   0,   pASCIIBuf,   -1,   0,   0);std::vector <wchar_t>   vWCH(UniCodeLen);MultiByteToWideChar(CP_ACP,   0,   pASCIIBuf,   -1,   &vWCH[0],   UniCodeLen);DWORD   dwUtf8Len = WideCharToMultiByte(CP_UTF8,   0,   &vWCH[0],   UniCodeLen   ,   NULL,   NULL,   NULL,   NULL);ASSERT(dwUtf8Len + 1 < 2048);memset(_StringConversionStorage, 0, (sizeof(char)*dwUtf8Len) + 1);WideCharToMultiByte(CP_UTF8,   0,   &vWCH[0],   UniCodeLen   ,   _StringConversionStorage,   dwUtf8Len,   NULL,   NULL);return &_StringConversionStorage[0];#elsereturn &pASCIIBuf[0];#endif}SERVER_DECL const char* _StringToANSI(const char*   pUtf8Buf){#ifdef WIN32DWORD   UniCodeLen = MultiByteToWideChar(CP_UTF8,   0,   pUtf8Buf,   -1,   NULL, 0);std::vector <wchar_t>   vWCH(UniCodeLen);MultiByteToWideChar(CP_UTF8,   0,   pUtf8Buf,   -1,   &vWCH[0]   ,   UniCodeLen);DWORD   dwASCIILen = WideCharToMultiByte(CP_ACP,   0,   &vWCH[0],   UniCodeLen   ,   NULL   , NULL   ,   NULL,   NULL);ASSERT(dwASCIILen + 1 < 2048);memset(_StringConversionStorage, 0, (sizeof(char)*dwASCIILen) + 1);WideCharToMultiByte(CP_ACP,   0,   &vWCH[0],   UniCodeLen   ,   _StringConversionStorage,   dwASCIILen,   NULL,   NULL);return &_StringConversionStorage[0];#elsereturn &pUtf8Buf[0];#endif}