private static bool UnescapeChar(string input, ref int lastSavedIndex, int loopEndIndex, int rdnEndIndex, ref int currentIndex, bool acceptEscapedSpace, ref StringBuilder sbConversion)
{
for (;;)
{
if (input[currentIndex] == '\\')
{
int num = currentIndex;
char c = input[++currentIndex];
char value;
if (AdName.IsEscapedChar(c))
{
value = c;
}
else
{
char hexChar = input[++currentIndex];
int num2;
if (!AdName.TryConvertHexPairToNumber(c, hexChar, out num2))
{
break;
}
value = (char)num2;
}
if (sbConversion == null)
{
sbConversion = new StringBuilder(input, lastSavedIndex, num - lastSavedIndex, rdnEndIndex - lastSavedIndex);
}
else
{
sbConversion.Append(input, lastSavedIndex, num - lastSavedIndex);
}
sbConversion.Append(value);
lastSavedIndex = currentIndex + 1;
}
if (++currentIndex >= loopEndIndex)
{
goto Block_4;
}
}
return(false);
Block_4:
currentIndex--;
return(true);
}
private static bool TryFormatChar(string input, ref int lastSavedIndex, int loopEndIndex, int rdnEndIndex, ref int currentIndex, bool acceptEscapedSpace, bool needEscapeSpace, ref StringBuilder sbConversion)
{
for (;;)
{
int num = currentIndex;
bool flag = false;
char c2;
if (input[currentIndex] == '\\')
{
if (currentIndex + 1 >= rdnEndIndex)
{
break;
}
char c = input[++currentIndex];
if (!AdName.IsFormattedChar(c))
{
if (c == '\r' || c == '\n')
{
c2 = c;
goto IL_EC;
}
if (c == ' ')
{
if (!acceptEscapedSpace)
{
return(false);
}
if (!needEscapeSpace)
{
c2 = c;
goto IL_EC;
}
}
else
{
if (currentIndex + 1 >= rdnEndIndex)
{
return(false);
}
char hexChar = input[++currentIndex];
int num2;
if (!AdName.TryConvertHexPairToNumber(c, hexChar, out num2))
{
return(false);
}
if (num2 != 10 && num2 != 13)
{
c2 = (char)num2;
flag = (AdName.IsFormattedChar(c2) || (c2 == ' ' && needEscapeSpace));
goto IL_EC;
}
}
}
}
else if (AdName.IsEscapedChar(input[currentIndex]))
{
if (input[currentIndex] != ' ')
{
return(false);
}
if (needEscapeSpace)
{
flag = true;
c2 = ' ';
goto IL_EC;
}
}
IL_138:
if (++currentIndex >= loopEndIndex)
{
goto Block_18;
}
continue;
IL_EC:
if (sbConversion == null)
{
sbConversion = new StringBuilder(input, lastSavedIndex, num - lastSavedIndex, rdnEndIndex - lastSavedIndex);
}
else
{
sbConversion.Append(input, lastSavedIndex, num - lastSavedIndex);
}
if (flag)
{
sbConversion.Append("\\");
}
sbConversion.Append(c2);
lastSavedIndex = currentIndex + 1;
goto IL_138;
}
return(false);
Block_18:
currentIndex--;
return(true);
}