Class: AnswerFactory::Machines::MutateFootnotesUniform

Inherits:
Machine
  • Object
show all
Defined in:
lib/machines/mutate_footnotes.rb

Instance Attribute Summary

Attributes inherited from Machine

#options

Instance Method Summary collapse

Methods inherited from Machine

#initialize

Constructor Details

This class inherits a constructor from AnswerFactory::Machines::Machine

Instance Method Details

#build(batch, overridden_options = {}) ⇒ Object Also known as: generate

Raises:

  • (ArgumentError) 


10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
 
# File 'lib/machines/mutate_footnotes.rb', line 10

def build(batch, overridden_options={})
  raise ArgumentError, "MutateFootnotesUniform#build cannot process a #{batch.class}" unless
    batch.kind_of?(Batch)
  
  all_options = @options.merge(overridden_options)
    
  fraction = all_options[:proportion_changed] || 0.5
  fraction = 0.0 if fraction < 0.0
  fraction = 1.0 if fraction > 1.0
  
  replicates = all_options[:replicates] || 1
  
  result = Batch.new
  
  batch.each do |orig|
    
    codeblock = orig.program.code_section.strip
    fn = orig.program.footnote_section.split(/^(?=«)/)
    fn_count = fn.length
    
    replicates.times do
      changes = (fraction*fn_count).ceil
      which_fns_change = (0...fn_count).to_a.sample(changes)
      new_blueprint = "#{codeblock} \n"
      (0...fn_count).each do |f|
        new_fn = which_fns_change.include?(f) ? mutated_footnote_value(fn[f],all_options) : fn[f]
        new_blueprint << "\n#{new_fn.strip}"
      end
      result << Answer.new(new_blueprint, progress:(orig.progress+1))
    end
  end
  
  return result
end

#mutated_footnote_value(footnote_string, options = {}) ⇒ Object 



46
47
48
49
50
51
52
 
# File 'lib/machines/mutate_footnotes.rb', line 46

def mutated_footnote_value(footnote_string, options = {})
  type = /^«([\p{Alpha}][_\p{Alnum}]*)(?=»)/.match(footnote_string)[1]
  nudgified = "#{type}_type".camelize
  Nudge.const_defined?(nudgified) ? 
    "«#{type}» #{nudgified.constantize.any_value(options)}" : 
    footnote_string
end