# File lib/rake.rb, line 372 372: def lookup(name) 373: if @hash.has_key?(name) 374: @hash[name] 375: elsif ENV.has_key?(name.to_s) 376: ENV[name.to_s] 377: elsif ENV.has_key?(name.to_s.upcase) 378: ENV[name.to_s.upcase] 379: elsif @parent 380: @parent.lookup(name) 381: end 382: end