perl won't understand, so why should we?

That's the difference between computers and the human brain - free association of idea's and concepts.

I don't like to speculate about what's happening. I like to know for sure

Thanks for confirming my speculation.

I did read the documentation which is how I knew the answer. I just felt that by putting the onus upon the OP to confirm the 'speculation' by reading it himself might prove beneficial.