From: windwinyubt@...
Date: 2015-08-13T02:29:18+00:00
Subject: [ruby-core:70361] [Ruby trunk - Bug #11437] [Open] IO.pipe problem	on windows console

Issue #11437 has been reported by wind winy.

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Bug #11437: IO.pipe problem on windows console
https://bugs.ruby-lang.org/issues/11437

* Author: wind winy
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: 
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
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    # this code copy from Open3.popen3 
    def mm(cmd)
      opts = {}

      in_r, in_w = IO.pipe
      opts[:in] = in_r
      in_w.sync = true

      out_r, out_w = IO.pipe
      opts[:out] = out_w


      pid = spawn(cmd, opts)
      wait_thr = Process.detach(pid)
      in_r.close
      out_w.close
      result = [in_w, out_r, wait_thr]

      result
    end


mm('dir')

use ruby 2.0 or 2.2 (32bit windows) run this method in irb or pry, 
return newline and input some chars, press backspace key can delete a char, but screen still show it




-- 
https://bugs.ruby-lang.org/