8 ms·

Ruby is surprisingly picky with white space

• manume 2y ago
  Can you give an example? I can't think of a single situation where whitespace matters in Ruby (unless of course you forget to put a space between two commands or something silly).
  • codesnik 2y ago
    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 2y ago
      still less annoying than Python's semantic whitespace
  • ezrast 2y ago
    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
• katbyte 2y ago
  Yea but it’s still not a delimiter