From: "Simon Kröger" <SimonKroeger@...>
Date: 2007-09-23T19:40:03+09:00
Subject: Re: How would you write it vs Smalltalk

Rick DeNatale schrieb:
> On 9/22/07, gabriele renzi <rff_rffREMOVE@yahoo.it> wrote:
>> On Sun, 23 Sep 2007 02:37:28 +0900, SpringFlowers AutumnMoon wrote:
>>
>>
>>> I just wonder how would you write it?  There is no each_char it seems,
>>> unless with ActiveSupport.
> 
>> So something like:
>>  gets.downcase.each_byte {|b| h[c.chr] += 1 if c =~ ?a..?z}
> 
> Here's another way:
> 
> puts "Enter line:"
> h = Hash.new(0)
> gets.scan(/[a-zA-Z]/) {|ch| h[ch.downcase] += 1 }
> p h.sort

Well, we need an inject solution, right?

p gets.downcase.scan(/[a-z]/).inject({}){|h,c| h.merge({c,h[c].to_i+1})}.sort

cheers

Simon