{
  type pretoken = Package of string | LastPackage of string | NoPackage
}

rule item = parse
    ['A'-'Z'] [^ ':']* ':' [^ '\n']* '\n' ( [^ '\n']+ '\n')* '\n'+
      {Package (Lexing.lexeme lexbuf)}
  | ['A'-'Z'] [^ ':']* ':' [^ '\n']* '\n' ( [^ '\n']+ '\n')* '\n'* eof
      {LastPackage (Lexing.lexeme lexbuf)}
  | [ ' ' '\t' '\n' ]* eof
      {NoPackage}