From: Bob X <bobx@...>
Date: 2002-06-14T06:46:59+09:00
Subject: Re: Embedding irb

Into an FXRuby app would be even better. : )

Joel VanderWerf wrote:
> Gilles Filippini wrote:
> 
>>Hi,
>>
>>It must be a basic question, but I didn't find any answer:
>>How to embed an IRB session into a ruby app ?
> 
> 
> This is one way to do it for a command line app (i.e., without changing
> stdin/out). It works well, but I do wish IRB made this a bit easier. The
> obj argument to start_session will be self when the session starts up.
> 
> require 'irb'
> require 'irb/completion'
> 
> module IRB
>   def IRB.start_session(obj)
>     unless $irb
>       IRB.initialize nil
>       ## maybe set some opts here, as in parse_opts in irb/init.rb?
>       IRB.load_modules
>     end
>     
>     workspace = WorkSpace.new(obj)
> 
>     if @CONF[:SCRIPT] ## normally, set by parse_opts
>       $irb = Irb.new(workspace, @CONF[:SCRIPT])
>     else
>       $irb = Irb.new(workspace)
>     end
> 
>     @CONF[:IRB_RC].call($irb.context) if @CONF[:IRB_RC]
>     @CONF[:MAIN_CONTEXT] = $irb.context
> 
>     trap("INT") do
>       $irb.signal_handle
>     end
> 
>     catch(:IRB_EXIT) do
>       $irb.eval_input
>     end
>     print "\n"
>     
>     ## might want to reset your app's interrupt handler here
>   end
> end
>