fast and extensible eRuby implementation which supports multi-language

 Erubis is a very fast eRuby implementation that features:
  * Multi-language support (Ruby/PHP/C/Java/Scheme/Perl/Javascript)
  * Auto escaping support
  * Auto trimming spaces around '<% %>'
  * Embedded pattern changeable (default '<% %>')
  * Enable to handle Processing Instructions (PI) as embedded pattern
  * Context object available and easy to combine eRuby template with YAML file
  * Print statement available
  * Easy to extend and customize in subclass
  * Ruby on Rails support