1st, 2nd, 3rd revisited in Ruby

I've been updating some of my Ruby examples today (as one does on a Saturday!) and I thought back to the post I made yesteday concerning 1st, 2nd, 3rd, etc in Python.

Ruby has a case statement, even though Ruby is a bit of a cross between Python and Perl, neither of which supports the structure. Historically, it's been difficult for language authors to come up with a really good multiple way switch but actually the Ruby one is rather smart. Compare this Ruby to the Python code I wrote yesterday:

case value

when 1,21,31

  suffix = "st"

when 2,22

  suffix = "nd"

when 3,23

  suffix = "rd"

else

  suffix = "th"

end



puts "It is the #{value}#{suffix} of the month"

Oh - I'm revising this for the public Ruby course that's running on 14th and 15th December ... places still available at £550.00 (first delegate) and £440.00 (second and subsequent delegate on same running of the course / same order. Maximum of 7 delegates taken, and just 3 rooms available as I write, Hurry hurry hurry!!
(written 2006-12-02, updated 2006-12-04)

Associated topics are indexed under

R104 - Ruby - Control Structures
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  [1587] Some Ruby programming examples from our course - (2008-03-21)
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  [1220] for loop - how it works (Perl, PHP, Java, C, etc) - (2007-06-06)
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  [995] Ruby's case - no break - (2006-12-17)
  [985] Equality in Ruby - == eql? and equal? - (2006-12-14)
  [962] Breaking a loop - Ruby and other languages - (2006-12-03)

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