class SourceAnnotationExtractor::Annotation

def self.directories
  @@directories ||= %w(app config db lib test) + (ENV['SOURCE_ANNOTATION_DIRECTORIES'] || '').split(',')
end

Otherwise the string contains just line and text.
If +options+ has a flag :tag the tag is shown as in the example above.

[126] [TODO] This algorithm is simple and clearly correct, make it faster.

Returns a representation of the annotation that looks like this:

def to_s(options={})
  s = "[#{line.to_s.rjust(options[:indent])}] "
  s << "[#{tag}] " if options[:tag]
  s << text
end