From: James Gray <james@...>
Date: 2009-02-26T02:55:12+09:00
Subject: Re: require 'diff/lcs/Array'

On Feb 25, 2009, at 11:17 AM, Venkat Kumar wrote:

> I need compare two text files. I should require 'diff/lcs/Array'  
> when i
> do this iam getting error.

I've tried using that library in the past, but its interface just  
makes it crazy hard to work with.  Now I would just do something like:

   diff = `diff -u #{shell_escape path1} #{shell_escape path2} 2>&1`

I would define shell_escape() as something like:

   def shell_escape(str)
     String(str).gsub(/(?=[^a-zA-Z0-9_.\/\-\x7F-\xFF\n])/n, '\\').
                 gsub(/\n/,                                 "'\n'").
                 sub(/^$/,                                  "''")
   end


Hope that helps.

James Edward Gray II