Module: Coursemology::Polyglot::ConcreteLanguage::ClassMethods

Defined in:
lib/coursemology/polyglot/concrete_language/class_methods.rb

Overview

This module is extended by the language’s singleton class when the Language can be directly used by the user.

This is deliberately defined so that consumers of this library can inject methods into all concrete languages’ classes.

Instance Method Summary collapse

Instance Method Details

#docker_image ⇒ Object

The default algorithm for translating a language to a corresponding Docker image name.

This will:

1. Strip the +Coursemology::Polyglot::Language+ prefix.
2. Underscore the name.
3. Replace *n*Point*n* strings with dots (e.g. Python2Point7 to Python2.7).
4. Replace slashes with dashes.



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# File 'lib/coursemology/polyglot/concrete_language/class_methods.rb', line 15

def docker_image
  # Remove the Coursemology::Polyglot::Language prefix
  class_name = name
  class_name = class_name.sub(/^Coursemology::Polyglot::Language::/, '')

  # Use the underscored name
  class_name = class_name.underscore

  # Replace the "_point" string with a decimal
  class_name.gsub!(/(?<=[\d])_point(?=[\d])/, '.')

  # Replace slashes with dashes
  class_name.tr!('/', '-')
  class_name
end