private static bool AddRange(RangeBuilder builder, String left, String right)
{
int l = Convert.ToInt32(left, 16);
int r = Convert.ToInt32(right, 16);
if (l > r || r > 1114111)
{
// Although Firefox follows the spec (and therefore the second condition), it seems it's ignored in Chrome or Edge
return(false);
}
builder.AddRange(l, r);
return(true);
}
