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Ripper2Ruby

Similar to ruby2ruby this library allows to parse Ruby code, modify and recompile it back to Ruby.

Differences:

  • uses Ripper for parsing (shipped with Ruby 1.9)
  • produces a full object-oriented representation of the Ruby code

Higher level select API

  • A higher level API is to facilitate selecting parts of the parse tree

See files: ruby_api.rb and ruby_api_traversal_test.rb

Find module

# module Monty::Python ... end
code.find_module('Monty::Python')

Find class

# class Monty::Python ... end
code.find_class('Monty::Python')   

# class Monty < Abc::Blip ... end
code.find_class('Monty', :superclass => 'Abc::Blip')

Find block

# my_block do ... end
code.find_block('my_block')   

# my_block do |v| ... end
code.find_block('my_block', :block_params => ['v'])   

  # my_block 7, 'a' do ... end
  code.find_block('my_block', :args => [7, 'a'])   

  # my_block 7, 'a', :k => 32 do |v| ... end
  code.find_block('my_block', :args => [7, 'a', {:k => 32}], :block_params => ['v'])   

# my_block :a => 7, b => 3 do |v| ... end
block_node = code.find_block('my_block', :args => [{:a => 7, 'b' => 3}])   

                                                                      
# my_block ['a', 'b'] do |v| ... end  
block_node = code.find_block('my_block', :args => [{:array =>['a', 'b']}])

More to come soon...