This ripl plugin gives ripl multi-line eval ability using ripper.

If on 1.9, install the gem with:

gem install ripl-ripper

If on 1.8, install the gem with:

gem install ripl-ripper ripper

Add to your ~/.riplrc

require 'ripl/ripper'

To customize your multi-line prompt use the :ripper_prompt option. For example,

Ripl.config[:ripper_prompt] = ' | '

This gem is meant to run on 1.9. 1.8 support is completely up to the ripper gem. If that doesn’t work for you, check out the ripl-multi_line plugin.