+def filter_options(readme):
+ section = re.search(r'(?sm)^# USAGE AND OPTIONS\n.+?(?=^# )', readme).group(0)
+ section_new = section.replace('*', R'\*')
+
+ options = '# OPTIONS\n'
+ for line in section_new.split('\n')[1:]:
+ mobj = re.fullmatch(r'''(?x)
+ \s{4}(?P<opt>-(?:,\s|[^\s])+)
+ (?:\s(?P<meta>(?:[^\s]|\s(?!\s))+))?
+ (\s{2,}(?P<desc>.+))?
+ ''', line)
+ if not mobj:
+ options += f'{line.lstrip()}\n'
+ continue
+ option, metavar, description = mobj.group('opt', 'meta', 'desc')
+
+ # Pandoc's definition_lists. See http://pandoc.org/README.html
+ option = f'{option} *{metavar}*' if metavar else option
+ description = f'{description}\n' if description else ''
+ options += f'\n{option}\n: {description}'
+ continue
+
+ return readme.replace(section, options, 1)
+
+
+TRANSFORM = compose_functions(filter_excluded_sections, convert_code_blocks, move_sections, filter_options)
+
+
+def main():
+ write_file(get_filename_args(), PREFIX + TRANSFORM(read_file(README_FILE)))
+