From: Harry Kakueki <list.push@...>
Date: 2008-05-01T00:23:21+09:00
Subject: Re: All occurances of a character in a string

On Sat, Apr 26, 2008 at 9:55 PM, Raghu Go <rgowka1@gmail.com> wrote:
> Hi - I am trying to figure out the ruby way of printing all occurances
>  of a character in a string..
>
>  The index method on string gives only the first occurance only.
>
>  Example input string - abbccdaab
>  desired output - 'a' = 0 6 7
>                  'b' = 1 2 8
>                  'c' = 3 4
>                  'd' = 5
>
>  Any help greatly appreciated..
>  --
>  Posted via http://www.ruby-forum.com/.
>
>

Here is one way.

arr = "abbccdaab".split(//)
arr.uniq.each do |s|
res = []
(0...arr.length).each {|x| res << x if arr[x] =~ /#{s}/}
p s, res
end

Harry

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