From: Mmcolli00 Mom <mmc_collins@...>
Date: 2008-12-10T23:35:43+09:00
Subject: Re: compare 2 text files - check for difference - Please help

I just used this on my txt files however, I can't get the script to 
output only when a line was disimillar. Right now it shows everything.

p sdiff = lines1.sdiff(lines2)

I want to output the following if sdiff returns the @action=!
[#<Diff::LCS::ContextChange:24309500 @action=! positions=0,0 
elements="1,2\n","1,2,3\n">

Do you know if there is a way to output only the disimilarities when the 
@action=! is outputed by sdiff? Right now, it shows every line 
similar/disimilar beginning with #<Diff:


#************************************************************
require 'rubygems'
require 'diff/lcs/array'

lines1 = lines2 = nil
File.open("1.txt") { |f| lines1 = f.readlines }
File.open("2.txt") { |f| lines2 = f.readlines }

p sdiff = lines1.sdiff(lines2)

if sdiff =~ /@action!/
then puts sdiff
end

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