README.txt

Path: README.txt
Last Update: Mon Jul 20 19:09:23 +0900 2009

README

release:2.6.5
copyright:copyright(c) 2006-2009 kuwata-lab.com all rights reserved.

About Erubis

Erubis is an implementation of eRuby. It has the following features.

  • Very fast, almost three times faster than ERB and even 10% faster than eruby
  • 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 (ex. ’<?rb … ?>’)
  • Context object available and easy to combine eRuby template with YAML datafile
  • Print statement available
  • Easy to extend and customize in subclass
  • Ruby on Rails support

Erubis is implemented in pure Ruby. It requires Ruby 1.8 or higher. Erubis now supports Ruby 1.9.

See doc/users-guide.html for details.

Installation

  • If you have installed RubyGems, just type gem install erubis.
      $ sudo gem install erubis
    
  • Else install abstract at first, and download erubis_X.X.X.tar.bz2 and install it by setup.rb.
      $ tar xjf abstract_X.X.X.tar.bz2
      $ cd abstract_X.X.X/
      $ sudo ruby setup.rb
      $ cd ..
      $ tar xjf erubis_X.X.X.tar.bz2
      $ cd erubis_X.X.X/
      $ sudo ruby setup.rb
    
  • (Optional) It is able to merge ‘lib/**/*.rb’ into ‘bin/erubis’ by ‘contrib/inline-require’ script.
      $ tar xjf erubis_X.X.X.tar.bz2
      $ cd erubis_X.X.X/
      $ cp /tmp/abstract_X.X.X/lib/abstract.rb lib
      $ unset RUBYLIB
      $ contrib/inline-require -I lib bin/erubis > contrib/erubis
    

Ruby on Rails Support

Erubis supports Ruby on Rails. All you have to do is to add the following code into your ‘config/environment.rb’ and restart web server.

     require 'erubis/helpers/rails_helper'
     #Erubis::Helpers::RailsHelper.engine_class = Erubis::Eruby
     #Erubis::Helpers::RailsHelper.init_properties = {}
     #Erubis::Helpers::RailsHelper.show_src = nil

If Erubis::Helpers::RailsHelper.show_src is ture, Erubis prints converted Ruby code into log file (‘log/development.log’ or so). It is useful for debug.

Exploring Guide

If you are exploring Eruby, see the following class at first.

  • Erubis::TinyEruby (erubis/tiny.rb) — the most simple eRuby implementation.
  • Erubis::Engine (erubis/engine.rb) — base class of Eruby, Ephp, Ejava, and so on.
  • Erubis::Eruby (erubis/engine/eruby.rb) — engine class for eRuby.
  • Erubis::Converter (erubis/converter.rb) — convert eRuby script into Ruby code.

Benchmark

‘benchmark/erubybenchmark.rb’ is a benchmark script of Erubis. Try ‘ruby erubybenchmark.rb’ in benchmark directory.

License

MIT License

Author

makoto kuwata <kwa(at)kuwata-lab.com>

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