title: ASCII Library for Creating "Pretty" Directory Trees?
body: <p>Is there some *nix tool or perl/php library that will let you easily create directory tree visualizations that look like the following?</p>
  
  <pre><code>www
  |-- private
  |    |-- app 
  |    |    |-- php
  |    |    |    |-- classes
  |    |    |    +-- scripts
  |    |    |-- settings
  |    |    +-- sql
  |    +-- lib
  |         +-- ZendFramework-HEAD
  +-- public
      |-- css
      |-- images
      +-- scripts
  </code></pre>