From: "David A. Black" <dblack@...>
Date: 2010-07-10T08:55:37+09:00
Subject: Re: FIRST PROGRAMMING PROBLEM Array

Hi --

On Sat, 10 Jul 2010, brabuhr@gmail.com wrote:

> (One way that) You could modify it to put each line in an array like:
>
> a = []
> f=File.open(txtFile)
>  f.each do |line|
>    a << line
>  end
> f.close
>
> Of course, in your case you would want to extract the tokens from the
> line and stick them in the array instead.

Don't forget too that File objects are fully enumerable, so you don't
have to maintain an explicit accumulator array -- you can use map
instead:

   def get_tokens_from_file(filename)
     File.open(filename) do |f|
       f.map do |line|
         get_tokens_from_line(line)
       end
     end
   end

   token_array = get_tokens_from_file(filename)


or similar.


David

-- 
David A. Black, Senior Developer, Cyrus Innovation Inc.

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