public static bool isAlpha(long self)
{
try
{
return (self < 128 && (charMap[(int)self] & ALPHA) != 0);
}
catch (IndexOutOfRangeException)
{
// should be very rare to use this method with negative
// numbers, so don't take the hit every call
return false;
}
}
static void checkId(string id)
{
if (id.Length == 0)
{
throw ParseErr.make("Invalid unit id length 0").val;
}
for (int i = 0; i < id.Length; ++i)
{
int c = id[i];
if (FanInt.isAlpha(c) || c == '_' || c == '%' || c == '$' || c == '/' || c > 128)
{
continue;
}
throw ParseErr.make("Invalid unit id " + id + " (invalid char '" + (char)c + "')").val;
}
}