This is an example of a Block-like Configuration Template.

block-like-configuration.rb

# The BlockConfiguration Class for storing the root-level
# configuration attributes
class BlockConfiguration
  
  attr_accessor :attributes
  
  %w(attr1 attr2 attr3).each do |method|
    define_method method do |value|
      attributes[method] = value
    end
  end
  
  def initialize
    @attributes = Hash.new
    @nested_config = NestedConfiguration.new
  end
  
  def nested_config(&block)    
    @nested_config.instance_eval(&block)
  end
  
  def get_nested_config
    @nested_config
  end
  
end

# The NestedConfiguration Class for Storing the Nested Attributes
# of the BlockConfiguration
class NestedConfiguration
  
  attr_accessor :attributes
  
  %w(attr1 attr2 attr3).each do |method|
    define_method "nested_#{method}" do |value|
      attributes["nested_#{method}"] = value
    end
  end
  
  def initialize
    @attributes = Hash.new
  end
  
end

# The Block Config Method
def block_config(&block)
  @block_config = BlockConfiguration.new
  @block_config.instance_eval(&block)
end

# Configuration-like Block
block_config do
  attr1 "This is Attribute 1"
  attr2 "This is Attribute 2"
  attr3 "This is Attribute 3"
  
  # Nested Attributes
  nested_config do
    nested_attr1 "This is Nested Attribute 1"
    nested_attr2 "This is Nested Attribute 2"
    nested_attr3 "This is Nested Attribute 3"
  end
end

# Output Examples
require "pp"
pp @block_config
pp @block_config.attributes
pp @block_config.attributes['attr1']
pp @block_config.get_nested_config
pp @block_config.get_nested_config.attributes
pp @block_config.get_nested_config.attributes['nested_attr1']