From: Takao Kouji <kouji@...7.net>
Date: 2008-08-11T13:42:45+09:00
Subject: Re: Readline and conditional tab results based on input

Hi, I am the maintainer of Readline module.

> And with Readline.completion_proc i have code that will return only dirs
> in this directory. But I would like to invoke this specific code part
> only
> when a user typed in i.e. "cd "
>
> So if i have a directory called "foobar" it should work here:
>
>
> "cd foo<TAB>"  # completed to foobar
>
> but if the user would type
>
> "blabalblabla foo<TAB>" # there should be no result

I want to add some methods that satisfy the Marc Heiler's demands.
The patch contributed to the RubyForge is taken. 

  [#3212] Readline does not provide enough context to the completion_proc
  http://rubyforge.org/tracker/index.php?func=detail&aid=3212&group_id=426&atid=1698

First of all, I will take it into ruby 1.9. Afterwards, backport to 1.8.

Thanks, TAKAO Kouji.