parser.add_argument('--verbose','-v',action='store_true',help='verbose output during processing')
parser.add_argument('--very-verbose','-vv',action='store_true',help='very verbose output during processing')
parser.add_argument('--ignore-clause','-ic',metavar='clause',nargs='+',default=['Contents','History'],help='ignore headers in the markdown document')
parser.add_argument('--include-hanging-paragraphs','-ihp',action='store_true',default=False,help='include hanging paragraphs (text in clauses with sub-clauses) in the output files')
parser.add_argument('--include-title','-it',action='store_true',help='include the content before the first heading in the output files as "0.md"')
parser.add_argument('--split-level','-sl',metavar='level',type=int,default=2,help='on which level to split clauses to separate files')
parser.add_argument('--media-directory','-md',metavar='media-directory',default='media',help='directory name where media files are stored')