From: Jamis Buck <jgb3@...>
Date: 2004-10-28T06:05:56+09:00
Subject: Re: Another erb Question

James Edward Gray II wrote:
> Can anyone explain the practical purpose of the final arg to ERB.new() 
> to me?

class ERB
   def initialize(str, safe_level=nil, trim_mode=nil, eoutvar='_erbout')
     ...
   end
end

You mean, +eoutvar+? That's the name of the variable that ERB uses when 
it generates the Ruby code that corresponds to its input. That variable 
will be used to build the output.

Try this:

   require 'erb'
   e = ERB.new( "One <%= ENV['HOME'] %> Two" )
   p e.src

You'll see a variable _erbout initialized to the empty string, and then 
  the result of each operation concat'ed onto it.

- Jamis

-- 
Jamis Buck
jgb3@email.byu.edu
http://www.jamisbuck.org/jamis