# File lib/puppet-lint.rb, line 46 def expand! vars = {} loop do changed = false vars.each do |var, value| var = var.to_s var.gsub! %r/[^a-zA-Z0-9_]/, '' [ %r/\%\{#{ var }\}/, ].each do |pat| changed = gsub! pat, "#{ value }" end end break unless changed end self end