I don't know about Ruby 1.9, but in 1.8, you can't do (for example): { :foo => rand 40 } It requires parens. So Ruby seems to enforce some limit where it'

I don't know about Ruby 1.9, but in 1.8, you can't do (for example): { :foo => rand 40 } It requires parens. So Ruby seems to enforce some limit where it's too ambiguous.