class Jekyll::FrontmatterDefaults

def matching_sets(path, type)

Returns an array of hashes

Collects a list of sets that match the given path and type 
def matching_sets(path, type)
  @matched_set_cache ||= {}
  @matched_set_cache[path] ||= {}
  @matched_set_cache[path][type] ||= valid_sets.select do |set|
    !set.key?("scope") || applies?(set["scope"], path, type)
  end
end