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from __future__ import unicode_literals
import io
import optparse
import os.path
import re
ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
README_FILE = os.path.join(ROOT_DIR, 'README.md')
youtube\-dl \- download videos from youtube.com or other video platforms
**youtube-dl** \[OPTIONS\] URL [URL...]
def main():
parser = optparse.OptionParser(usage='%prog OUTFILE.md')
options, args = parser.parse_args()
if len(args) != 1:
parser.error('Expected an output filename')
outfile, = args
with io.open(README_FILE, encoding='utf-8') as f:
readme = f.read()
readme = re.sub(r'(?s)^.*?(?=# DESCRIPTION)', '', readme)
readme = re.sub(r'\s+youtube-dl \[OPTIONS\] URL \[URL\.\.\.\]', '', readme)
readme = PREFIX + readme
readme = filter_options(readme)
with io.open(outfile, 'w', encoding='utf-8') as outf:
def filter_options(readme):
ret = ''
in_options = False
for line in readme.split('\n'):
if line.startswith('# '):
if line[2:].startswith('OPTIONS'):
in_options = True
in_options = False
if in_options:
if line.lstrip().startswith('-'):
split = re.split(r'\s{2,}', line.lstrip())
# Description string may start with `-` as well. If there is
# only one piece then it's a description bit not an option.
if len(split) > 1:
option, description = split
split_option = option.split(' ')
if not split_option[-1].startswith('-'): # metavar
option = ' '.join(split_option[:-1] + ['*%s*' % split_option[-1]])
# Pandoc's definition_lists. See http://pandoc.org/README.html
# for more information.
ret += '\n%s\n: %s\n' % (option, description)
ret += line.lstrip() + '\n'
ret += line + '\n'
return ret
if __name__ == '__main__':