From: Robert Klemme <shortcutter@...>
Date: 2009-03-06T00:43:35+09:00
Subject: Re: add a new line after, w/txtfile thats comma delimited

On 05.03.2009 16:07, Mmcolli00 Mom wrote:
> How do you add a new line after you have split a text file with
> continuous values delimited with commas? Thanks in advance. MC
> 
> For example:
> textfile contains: value1,value2,value3..
> 
> I want to output this file like this:
> value1
> value2
> value3
> 
> #Here is my code:
> 
> File.open('temp.txt', 'r') do |temp|
>      arraym = [] #<--I am using array so that I can use array functions
> .but I dont have to use array for this

This creation of the empty Array is completely superfluous as you do 
nothing with this Array.  You even do not need to declare the variable 
outside of the block since you use it inside only and do not retain 
values between iterations (lines).

>       temp.each_line do |line|
>          arraym=  line.split(",",0)
>          b.puts ""
>          b.puts arraym # + "\n"
>          b.puts ""
>       end
>  end

It can be as simple as

File.foreach "temp.txt" do |line|
   puts "", line.split(/,/), ""
end

You can as well do

File.foreach "temp.txt" do |line|
   printf "\n%s\n", line.gsub(/,/, "\n")
end

Kind regards

	robert