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import sys
from docutils.core import publish_parts
from optparse import OptionParser
from docutils.frontend import OptionParser as DocutilsOptionParser
from docutils.parsers.rst import Parser
def transform(writer=None, part=None):
p = OptionParser(add_help_option=False)
# Collect all the command line options
docutils_parser = DocutilsOptionParser(components=(writer, Parser()))
for group in docutils_parser.option_groups:
p.add_option_group(group.title, None).add_options(group.option_list)
p.add_option('--part', default=part)
opts, args = p.parse_args()
settings = dict({
'file_insertion_enabled': False,
'raw_enabled': False,
}, **opts.__dict__)
if len(args) == 1:
try:
content = open(args[0], 'r').read()
except IOError:
content = args[0]
else:
content = sys.stdin.read()
parts = publish_parts(
source=content,
settings_overrides=settings,
writer=writer,
)
if opts.part in parts:
return parts[opts.part]
return ''
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