Well if you’ll look closer you may find that flex is switched to 8bit mode:
But then you may find such declarations:
When I first saw these lines they blew my mind. Because from the school times I was sure that 8bit has maximum value of 255. But thanks God, there is a lot of information about flex all over internet. And suddenly, it turned out that flex uses octal notation by default. This means
the character with octal value 123
There is also a way to use hexadecimal notation:
the character with hexadecimal value 2a
So the next time you’ll see such declarations don’t be confused. So conceived!