C++ 实现encodeURI 兼容linux

const char * encodeURI(const char *Str)
	{
		wchar_t *Bufw = NULL;
		char *Bufc = NULL;
		static char RTV[5120] = { 0 };
		std::string strLocale = setlocale(LC_ALL, "");
		long needSize = mbstowcs(NULL, Str, 0) + 1;
		Bufw = new wchar_t[needSize];
		if (0 == needSize || NULL == Bufw) {
			if (NULL != Bufw) {
				delete[] Bufw;
				Bufw = NULL;
			}
			if (NULL != Bufc) {
				delete[] Bufc;
				Bufc = NULL;
			}
			return NULL;
		}
		memset(Bufw, 0x0, needSize * 2);
		mbstowcs(Bufw, Str, needSize);

		strLocale = setlocale(LC_ALL, "en_US.utf8");
		needSize = wcstombs(NULL, Bufw, 0) + 1;
		Bufc = new char[needSize];
		if (0 == needSize || NULL == Bufc) {
			if (NULL != Bufw) {
				delete[] Bufw;
				Bufw = NULL;
			}
			if (NULL != Bufc) {
				delete[] Bufc;
				Bufc = NULL;
			}
			return NULL;
		}
		memset(Bufc, 0x0, needSize);
		wcstombs(Bufc, Bufw, needSize);
		unsigned char *pWork = (unsigned char *)Bufc;
		memset(RTV, 0x0, sizeof(RTV));
		if (strlen(Bufc) > 5120) {
			if (NULL != Bufw) {
				delete[] Bufw;
				Bufw = NULL;
			}
			if (NULL != Bufc) {
				delete[] Bufc;
				Bufc = NULL;
			}
			return NULL;
		}
		while (*pWork != 0x0) {
			if (*pWork != '!' && *pWork != '@' && *pWork != '#' &&
				*pWork != '$' && *pWork != '&' && *pWork != '*' &&
				*pWork != '(' && *pWork != ')' && *pWork != '=' &&
				*pWork != ':' && *pWork != '/' && *pWork != ';' &&
				*pWork != '?' && *pWork != '+' && *pWork != '\'' &&
				*pWork != '.') {
				sprintf(RTV + strlen(RTV), "%%%2X", *pWork);
			}
			else {
				sprintf(RTV + strlen(RTV), "%c", *pWork);
			}
			pWork++;
		}
		if (NULL != Bufw) {
			delete[] Bufw;
			Bufw = NULL;
		}
		if (NULL != Bufc) {
			delete[] Bufc;
			Bufc = NULL;
		}
		return RTV;
	}