From: konsu <konsu@...>
Date: 2005-10-05T12:11:48+09:00
Subject: nested #{expr} in strings

hello,

if a double quoted string has a #{} block that evaluates to another double 
quoted string  with another #{} block, will the resulting string be expanded 
too?

for example, in ActiveRecord i have:

acts_as_list :scope => 'parent_id #{self.parent_id.nil? ? "is null" : 
"=#{self.parent_id}"}'

i just checked and it seems so, but the question is whether this is well 
defined behaviour and not just a coincidence.

thanks
konstantin