From: William James <w_a_x_man@...>
Date: 2008-03-26T10:54:58+09:00
Subject: Re: golf: tabs to bullets

On Mar 25, 3:02 pm, Martin DeMello <martindeme...@gmail.com> wrote:
> Given:
>   an outline list, with each line indented by a series of tabs
>   a list of bullets (assume a circular list, for simplicity)
>
> Write a function that replaces every tab with two spaces, except for
> the last one, which is replaced by a bullet.
>
> example:
>
> input file:
> foo
> \t bar
> \t \t baz
> \t \t \t hello
> \t \t world
>
> bullets: %w(* - o x)
>
> output (view in fixed width):
> foo
> * bar
>   - baz
>     o hello
>   - world
>
> martin

bullets = %w(. * - o x)

"foo
\t bar
\t \t baz
\t \t \t hello
\t \t world
".each{|x| puts x.reverse.sub("\t",bullets[x.count("\t")]).
                  reverse.gsub("\t","  ") }