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tamouse m. wrote in post #1116598:

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[#409142] Re: Link To Masses Of External Data In Openoffice? — "Austin J." <lists@...> 2013/07/26

tamouse m. wrote in post #1116750:

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11 messages 2013/07/31

Re: How to check an input IS an integer ?

From: Captain Ishido <ishido7@...>
Date: 2013-07-31 09:55:50 UTC
List: ruby-talk #409256
Le 30/07/2013 22:35, sto.mar@web.de a écrit :
> Am 30.07.2013 20:51, schrieb Captain Ishido:
>> I've found a 'solution'. I don't like it but *cough* it works.
>> If you're a REAL programmer, don't read.
>> -----------------------------------------------
>> # Let's do DIRTY things
>> # (Don't try do to this at home, kids !)
>> answer=""
>> answer=answer.to_i
>> while answer == 0 do
>> 	puts "Please type an integer : "
>> 	answer = readline.chomp
>> 	answer=answer.to_i
>> end
> 
> Depending on the use case, `0' might be a valid answer...
> 
> 
> Something like this should work:
> 
>   answer = nil
>   until /\A[0-9]+\z/ === answer
>     print 'Enter an integer: '
>     answer = gets.chomp
>   end
> 
>   number = answer.to_i
>   puts "Your answer: #{number}"
> 
> 
> Regards,
> Marcus
> 

Well, I wasn't sure for your '/\A[0-9]+\z/' expression, so I checked it
out on http://www.ruby-doc.org/core-1.9.3/Regexp.html.
Now, I think I understand. Thanks a lot :) ! I can continue my little
program.


-- 
Cordialement.
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