Can you give an example? I can't think of a single situation where whitespace ma...

ezrast · on June 23, 2024

It's not really a problem in practice (and I love Ruby), but it's still wild to me that they made the parser do this:

    $ irb
    irb(main):001:0> def foo(x=70) = x
    => :foo
    irb(main):002:0> i = 2
    => 2
    irb(main):003:0> foo / 5/i
    => 7
    irb(main):004:0> foo /5/i
    => /5/i

codesnik · on June 23, 2024

if foo is a method then

`foo + bar` and `foo+bar` are `foo()+bar`, but `foo +bar` is `foo(+bar)`

ternary ? : also has some interesting whitespace dependent mixups with symbols, but I cannot remember what. I think that parser has many gotchas like that, but they are really really rare to bite you, because ruby's magic follows human intuition as much as possible.

p_l · on June 23, 2024

still less annoying than Python's semantic whitespace