class RubyCritic::SourceControlSystem::Perforce

def self.child?(root, target)
  root_size = root.size
  target_size = target.size
  return false if target_size < root_size
  target[0...root_size] == root &&
    (target_size == root_size || [File::ALT_SEPARATOR, File::SEPARATOR].include?(target[root_size]))
end