Re: "The Best Programming Language for the End of the World"

anton@mips.complang.tuwien.ac.at (Anton Ertl) writes:

What happens for "10_ 20_ + ." ?

It outputs 30, too.  The intended use of _ in Gforth is like this:...
What does your underlying mental model say how things should work?

One model is to ignore _ as gforth appears to.  Another is that _ is a
separator character, ignored when it appears between two digits, but
meaningful or an error at the starting or ending position.  That is how
Python 3 appears to work.  1_0 is the same as 10, but 10_ is a syntax error.