Re: Nil and false in Lua design

[Dirk Laurie <dirk.laurie@...>]

2013/10/12 Robert Raschke <rtrlists@googlemail.com>:

> In Icon, control structures operate based on the success or failure of
> expression evaluation.

It's quite traditional for string-processing languages. Snobol may have
been the first such, there was a curious tool called RPG, and LPeg also
has it.