From: Martin DeMello <martindemello@...>
Date: 2008-03-26T06:02:40+09:00
Subject: golf: tabs to bullets

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