begin require "readline.so" ReadlineSo = Readline rescue LoadError end require "reline" def use_ext_readline # Use ext/readline as Readline Object.send(:remove_const, :Readline) if Object.const_defined?(:Readline) Object.const_set(:Readline, ReadlineSo) end def use_lib_reline # Use lib/reline as Readline Reline.send(:test_mode) Object.send(:remove_const, :Readline) if Object.const_defined?(:Readline) Object.const_set(:Readline, Reline) end