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