// See https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/String/replace#Specifying_a_string_as_a_parameter
// Some tricky test cases:
// "abcdefghijklmn".replace(/(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)(m)(n)/, "$001"): "$001"
// "abcdefghijklmn".replace(/(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)(m)(n)/, "$01"): "a"
// "abcdefghijklmn".replace(/(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)(m)(n)/, "$10"): "j"
// "abcdefghijklmn".replace(/(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)(m)(n)/, "$15"): "a5"
// "abcdefghijklmn".replace(/(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)(m)(n)/, "$20"): "b0"
void insertReplacedString(wstring& builder, const wstring& base, const wstring& str, const RegExpMatch& match)
{
const vector<wstring>& substrings = match.substrings;
const wstring& mstr = substrings[0];
for (size_t i = 0; i < str.length(); i++)
{
if (str[i] == L'$' && str.length() > i + 1)
{
wchar_t ch = str[++i];
switch (ch)
{
case L'$': // insert a '$'
builder.push_back(ch);
break;
case L'&': // insert the matched string
builder.append(mstr);
break;
case L'`': // insert the portion preceding the matched string
builder.append(base.begin(), base.begin() + match.index);
break;
case L'\'': // insert the portion following the matched string
builder.append(base.begin() + match.index + mstr.length(), base.end());
break;
default:
if (ch >= L'0' && ch <= L'9')
{
int expidx = 0;
wchar_t ch2 = str.length() > i + 1 ? str[i + 1] : L'\0';
if (ch2 >= L'0' && ch2 <= L'9')
{
expidx = ch2 - L'0' + 10 * (ch - L'0');
// if expidx overflows, fall back to single-digit
if (expidx == 0 || expidx >= (int)substrings.size())
{
expidx = ch - L'0';
ch2 = 0;
}
}
else
{
ch2 = 0;
expidx = ch - L'0';
}
// substrings.size() is 1 bigger than actual sub matches
if (expidx < (int)substrings.size() && expidx > 0)
{
const wstring& submstr = substrings[expidx];
builder.append(submstr);
if (ch2) ++i;
break;
}
}
// $ escape fails, output as is
builder.push_back(L'$');
builder.push_back(ch);
}
}
else builder.push_back(str[i]);
}
}
bool JstrChecker::IS_STRING(const wstring &str, wstring &strvl) {
if (str.front() != JsonSymbol::STRING_BOUND || str.back() != JsonSymbol::STRING_BOUND) return false;
strvl = L"";
for (size_t i = 1; i < str.size() - 1; i++) {
if (str[i] == JsonSymbol::ESCAPE_SYM) {
if (i == str.size() - 2) return false;
strvl.push_back(ESCAPE(str[i + 1]));
i++;
} else if (str[i] == JsonSymbol::STRING_BOUND) {
return false;
} else {
strvl.push_back(str[i]);
}
}
return true;
}
bool CItem::x_GetAttribValue(LPCTSTR& pItem , wstring& wsValue)
{
// pItem 为 "'values' more..."
while ( ' ' == *pItem ) pItem++;
if ( '\'' != *pItem++ )
return false ;
while ( '\0' != *pItem && '\'' != *pItem ) wsValue.push_back(*pItem++) ;
return '\'' == *pItem ;
}
static void do_log(int log_level, const char *msg, va_list args, void *param)
{
fstream &logFile = *static_cast<fstream*>(param);
char str[4096];
#ifndef _WIN32
va_list args2;
va_copy(args2, args);
#endif
vsnprintf(str, 4095, msg, args);
#ifdef _WIN32
if (IsDebuggerPresent()) {
int wNum = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0);
if (wNum > 1) {
static wstring wide_buf;
static mutex wide_mutex;
lock_guard<mutex> lock(wide_mutex);
wide_buf.reserve(wNum + 1);
wide_buf.resize(wNum - 1);
MultiByteToWideChar(CP_UTF8, 0, str, -1, &wide_buf[0],
wNum);
wide_buf.push_back('\n');
OutputDebugStringW(wide_buf.c_str());
}
}
#else
def_log_handler(log_level, msg, args2, nullptr);
#endif
if (too_many_repeated_entries(logFile, msg, str))
return;
if (log_level <= LOG_INFO || log_verbose)
LogStringChunk(logFile, str);
#if defined(_WIN32) && defined(OBS_DEBUGBREAK_ON_ERROR)
if (log_level <= LOG_ERROR && IsDebuggerPresent())
__debugbreak();
#endif
}
static bool utf8_to_wstring(wstring& dest, const string& src) {
bool err = false;
dest.clear();
wchar_t w = 0;
int bytes = 0;
const wchar_t errChar = L'�';
for (size_t i = 0; i < src.size(); i++) {
unsigned char c = (unsigned char) src[i];
if (c <= 0x7f) {//first byte
if (bytes) {
dest.push_back(errChar);
bytes = 0;
err = true;
}
dest.push_back((wchar_t) c);
} else if (c <= 0xbf) {//second/third/etc byte
if (bytes) {
w = ((w << 6) | (c & 0x3f));
bytes--;
if (bytes == 0)
dest.push_back(w);
} else {
dest.push_back(errChar);
err = true;
}
} else if (c <= 0xdf) {
//2byte sequence start
bytes = 1;
w = c & 0x1f;
} else if (c <= 0xef) {//3byte sequence start
bytes = 2;
w = c & 0x0f;
} else if (c <= 0xf7) {//3byte sequence start
bytes = 3;
w = c & 0x07;
} else {
dest.push_back(errChar);
bytes = 0;
err = true;
}
}
if (bytes) {
dest.push_back(errChar);
err = true;
}
return err;
}
