def __handle(args):
"""Custom handler for 'diff' so custom error messages can be
printed without having to capture 'parser' in main."""
output_dir = ['-e', '--export-dir']
if args.output_format == 'html' and \
not any(util.arg_match(output_dir, sys.argv[1:])):
parser.error("argument --output html: not allowed without "
"argument --export-dir")
cmd_line_client.handle_diff_results(args)
def arg_match(options):
return util.arg_match(options, sys.argv[1:])
