From: "Jan E." <lists@...>
Date: 2012-10-05T01:09:33+09:00
Subject: Re: Extract numbers from an alpha numeric string

Hi,

when you iterate over single characters, then of course you only get 
numbers with one digit. And when you remove the separators, you also 
make the numbers indistinguishable. For example, "2-2" has the same 
output as "22".

So this cannot work. You either have to split the string at the "-" or 
look for numbers with a regex:

input = '1-3-11-7-4-7'
players = input.split('-').map {|num| h[num.to_i]}
p players

or

input = '1-3-11-7-4-7'
players = input.scan(/\d+/).map {|num| h[num.to_i]}
p players

I didn't exactly understand what you want, so this is just an array of 
the selected values of the "h" hash.

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