From: 7stud -- <bbxx789_05ss@...>
Date: 2008-01-23T15:43:16+09:00
Subject: Re: Converting Strings

Zenki Nine wrote:
> hey,
> 
> I'm trying to convert the strings below into an array of all the unique
> words converted to lower case.
> 
> comment << COMMENT
> This is a ruby code.
> More lovely code.
> Better than PHP.
> That is it.
> COMMENT
> 
> result_string = ""
> 
> Thanks

Try this:

require 'set'

comment = <<COMMENT
This is ruby code.
More lovely code.
Better than PHP.
That is it.
COMMENT

lower = comment.downcase
lines = lower.split(".\n")

unique_words = Set.new()
lines.each do |line|
  words = line.split()
  words.each do |word|
    unique_words << word
  end
end

p unique_words
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