From: Robert Klemme <shortcutter@...>
Date: 2009-02-20T23:33:24+09:00
Subject: Re: Dynamic string (depending on a variable)

2009/2/19 Dylan Evans <dylan.star@gmail.com>:
> sentence = "Your ticket expired " + (nb_of_days>0? nb_of_days.to_s + " days
> ago." : "today.")

irb(main):009:0> nb_of_days = 0
=> 0
irb(main):010:0> sentence = 'Your ticket expired ' << (nb_of_days == 0
? 'today' : "#{nb_of_days} days ago") << '.'
=> "Your ticket expired today."
irb(main):011:0> nb_of_days = 5
=> 5
irb(main):012:0> sentence = 'Your ticket expired ' << (nb_of_days == 0
? 'today' : "#{nb_of_days} days ago") << '.'
=> "Your ticket expired 5 days ago."

Or even

15:33:12 Temp$ ruby exp.rb
Your ticket expired today.
Your ticket expired yesterday.
Your ticket expired 2 days ago.
Your ticket expired 3 days ago.
Your ticket expired 4 days ago.
Your ticket expired 5 days ago.
15:33:14 Temp$ cat exp.rb
(0..5).each do |nb_of_days|
  sentence = 'Your ticket expired ' <<
    case nb_of_days
    when 0: 'today'
    when 1: 'yesterday'
    else "#{nb_of_days} days ago"
    end << '.'
  puts sentence
end
15:33:19 Temp$

Kind regards

robert

-- 
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