# File lib/rack/handler.rb, line 55
55:     def self.try_require(prefix, const_name)
56:       file = const_name.gsub(/^[A-Z]+/) { |pre| pre.downcase }.
57:         gsub(/[A-Z]+[^A-Z]/, '_\&').downcase
58: 
59:       require(::File.join(prefix, file))
60:     rescue LoadError
61:     end