Tab and arrow-keys in gets

Ruby
1

Hi!

I’m making a simple Ruby shell. It’s all basing on an endless
while-loop and $stdin.gets. But here (on my Linux box) I cannot use
the arrow key. It just shows: “^[[A”. And it would be great too have a
tab-feature.

But how do you implement these features?

2

On 2/21/07, Magnus H. [email protected] wrote:

Hi!

I’m making a simple Ruby shell. It’s all basing on an endless
while-loop and $stdin.gets. But here (on my Linux box) I cannot use
the arrow key. It just shows: “^[[A”. And it would be great too have a
tab-feature.

But how do you implement these features?

require ‘readline’

while line = Readline.readline('foo> ', true)
puts “You gave me: #{line}”
end

Have fun :slight_smile:

Some (very) basic docs are at:
http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ext/readline/README?view=markup