From: "Damián M. González" <lists@...>
Date: 2012-12-28T23:20:51+09:00
Subject: Re: Case statement anomaly?

> Carlos, where is this information (about 'when' not accepting a block)
> on the 'Net, please?  I'm afraid I couldn't find it, although I looked
> at ruby-lang.org and several other places.

 Well you have to think out that every code inside "when" and the next 
"when" ;or between "when" and "else";or between "when" and "end";or 
between "else" and "end" is a chunk of code, so is like a block, you 
don't need to put the code inside "do .. end" or {}. It is not necesary, 
of course you can use blocks inside for example:

 a = 1
 b = ["one", "two"]

 case a
 when 0
   b.each do │number│
     number.capitalize!
   end
 else
   begin
    a.length
   rescue => e
     puts "The error is #{e}"
   end
 end

 This will finish with an error, and I maked that with the purpose to 
show in which case you can use "begin .. end", if you don't want to 
rescue nothing is not necesary use "begin .. end", just put the chunk of 
code. Well hope this help you, see ya' :)

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