From: Raymond O'Connor <nappin713@...>
Date: 2007-11-07T06:42:35+09:00
Subject: Sort and a multiline block

Using sort with a multiline block doesn't seem to work as expected.

Single line blocks work fine:

[3, 7, 4, 1, 8, 2, 8, 9].sort { |a, b| a <=> b }
#returns [1, 2, 3, 4, 7, 8, 8, 9]

[3, 7, 4, 1, 8, 2, 8, 9].sort { |a, b| b <=> a }
#returns [9, 8, 8, 7, 4, 3, 2, 1]



Multiline blocks ALWAYS sort in ascending order for some reason:

[3, 7, 4, 1, 8, 2, 8, 9].sort do |a, b|
  a <=> b
end
#returns [1, 2, 3, 4, 7, 8, 8, 9]

[3, 7, 4, 1, 8, 2, 8, 9].sort do |a, b|
  b <=> a
end
#returns [1, 2, 3, 4, 7, 8, 8, 9]


In fact even when I code the comparison by hand, it's still always
ascending:

[3, 7, 4, 1, 8, 2, 8, 9].sort do |a, b|
  if a < b
    1
  elsif a > b
    -1
  else
    0
  end
end
#returns [1, 2, 3, 4, 7, 8, 8, 9]




Does anyone know what's going wrong with this?

Thanks
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