Ruby

GNU Readline has multiple modes of operation. At the moment, the readline extension only supports typical, Readline.readline mode. However, there is also alternative callback-based interface which is also useful.

require_relative 'readline' PROMPT = "rltest$ " $running = true $sigwinch_received = false Readline.handler_install(PROMPT, add_hist: true) do |line| # Can use ^D (stty eof) or `exit' to exit. if !line || line == "exit" puts unless line puts "exit" Readline.handler_remove $running = false else puts "input line: #{line}" end end Signal.trap('SIGWINCH') { $sigwinch_received = true } while $running do rs = IO.select([$stdin]) if $sigwinch_received Readline.resize_terminal $sigwinch_received = false end Readline.read_char if r = rs[0] end puts "rltest: Event loop has exited" 

Patch adding support for this is attached. This is my first try at contributing to ruby, so please tell me what I did wrong (I'm sure something, C is not my strong language).