From: Brian Candler <B.Candler@...>
Date: 2003-03-18T01:29:38+09:00
Subject: Re: How do I get irb to use readline, (with OS X)?

On Tue, Mar 18, 2003 at 12:42:58AM +0900, Sam Roberts wrote:
> Sorry for being vague. What I want is simpler that that - I want to be able to
> use the arrow keys (or even ^p) to go back through the history, and to move
> back through a line and edit it!
> 
> I can't use any line editing keys right now, its getting irritating!

Does OSX have 'bash' with readline? If so try
  ldd `which bash`

which will show you if where your libreadline is (if you have it as a
dynamic library, and bash was linked against it)

But if irb doesn't use readline by default, then I imagine that ruby didn't
find readline when it was compiled, which means recompiling ruby, or at
least ext/readline/

Regards,

Brian.