class Rouge::Lexers::Sieve

def self.actions
  @actions ||= Set.new(
    # action commands (rfc5228 § 2.9)
    %w(keep fileinto redirect discard) +
    # Editheader Extension (rfc5293)
    %w(addheader deleteheader) +
    # Reject and Extended Reject Extensions (rfc5429)
    %w(reject ereject) +
    # Extension for Notifications (rfc5435)
    %w(notify) +
    # Imap4flags Extension (rfc5232)
    %w(setflag addflag removeflag) +
    # Vacation Extension (rfc5230)
    %w(vacation) +
    # MIME Part Tests, Iteration, Extraction, Replacement, and Enclosure (rfc5703)
    %w(replace enclose extracttext)
  )
end