On Jul 23, 2006, at 8:24 PM, Elliot Temple wrote:

>
> On Jul 23, 2006, at 5:17 PM, Tom Robinson wrote:
>
>> I just started using irb on my Mac. When I press the Up arrow I  
>> should
>> see the previously entered line, right? Instead it writes "^[[A"  
>> to the
>> prompt. I've tried Terminal.app, iTerm, and xterm within X11, all  
>> do the
>> same thing. Any ideas?
>
> i believe you need to install readline

Ruby 1.8.4 from DarwinPorts depends on readline, so it's installed  
for me. Recently, I found that the readline version from DarwinPorts  
was updated. I installed it and broke Ruby stuff. I simply  
deactivated the new one (5.1.x) and reactivated the old one (5.0.x).

Craig