multiline_repl

#!/usr/bin/env ruby

require 'reline'
require_relative 'termination_checker'

begin
  stty_save = `stty -g`.chomp
rescue
end

begin
  puts 'Multiline REPL.'
  checker = TerminationChecker.new
  while code = Reline.readmultiline('prompt> ', true) { |code| checker.terminated?(code) }
    case code.chomp
    when 'exit', 'quit', 'q'
      exit 0
    when ''
      # NOOP
    else
      begin
        result = eval(code)
        puts "=> #{result.inspect}"
      rescue ScriptError, StandardError => e
        puts "Traceback (most recent call last):"
        e.backtrace.reverse_each do |f|
          puts "        #{f}"
        end
        puts e.message
      end
    end
  end
rescue Interrupt
  puts '^C'
  `stty #{stty_save}` if stty_save
  exit 0
ensure
  `stty #{stty_save}` if stty_save
end
puts