Bug #15442: irb behaves strange in Ruby 2.6

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: Ruby 2.6 (trunk)
• Backport: 2.4: UNKNOWN, 2.5: UNKNOWN

[ana06 (Ana Maria Martinez Gomez)]

When trying to press the UP, DOWN, LEFT and RIGHT keys in Ruby 2.6 strange characters are printed instead of moving (or showing the last executed instruction). This works properly for me in Ruby 2.5.

irb(main):004:0> ^[[A^[[A^[[B^[[C^[[D

[aycabta (aycabta .)]

The keyboard line editing behaviors are based on GNU Readline. Please install GNU Readline before you build Ruby.

For example, if you're using Ubuntu 18.10, run sudo apt install libreadline-dev and re-build Ruby.

[mrkn (Kenta Murata)]

You can check the availability of readline by this command line:

ruby -rreadline -ep

[ana06 (Ana Maria Martinez Gomez)]

I think I didn't have current trunk version. It seems to work no. Sorry

[hsbt (Hiroshi SHIBATA)]

• Status changed from Open to Feedback

[ana06 (Ana Maria Martinez Gomez)]

this can be closed

[jeremyevans0 (Jeremy Evans)]

• Status changed from Feedback to Closed