From: Sam Duncan <sduncan@...>
Date: 2011-10-20T05:05:28+09:00
Subject: Re: efficient way to catch & continue on exception

On 20/10/11 08:45, Kassym Dorsel wrote:
> C. Zona wrote in post #1027457:
> http://stackoverflow.com/questions/2624835/ruby-continue-a-loop-after-catching-an-exception
>
> Something like that, but I can't use a loop. Each command and each hash
> entry name is different and have to be hard coded.
>
Do they need to be hard coded? Can you configure it with a hash of name 
to command mapping, and then simply iterate the hash with each_pair?

 > irb
ruby-1.9.2-p290 :001 > hs = {}
  => {}
ruby-1.9.2-p290 :002 > hs.default = nil
  => nil
ruby-1.9.2-p290 :003 > def command1; 'command1_result';end
  => nil
ruby-1.9.2-p290 :004 > def command2; 'command2_result';end
  => nil
ruby-1.9.2-p290 :005 > def command3; 'command3_result';end
  => nil
ruby-1.9.2-p290 :006 > assignments = {:name1=>:command1, 
:name2=>:command2, :name3=>:command3}
  => {:name1=>:command1, :name2=>:command2, :name3=>:command3}
ruby-1.9.2-p290 :007 > assignments.each_pair {|k,v| hs[k] = method(v).call}
  => {:name1=>:command1, :name2=>:command2, :name3=>:command3}
ruby-1.9.2-p290 :008 > hs
  => {:name1=>"command1_result", :name2=>"command2_result", 
:name3=>"command3_result"}

Then you have your loop.

Sam