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from collections import OrderedDict, deque, namedtuple
import shlex
Meta = namedtuple('Meta', ['sects', 'meta'])
def _merge(l):
return ''.join(l)
def _next(l):
sect = deque()
while l and not l[0].strip().startswith('$'):
sect.append(l.popleft())
if not l:
return (('TRAIL', _merge(sect)), l)
name = l.popleft().strip()[1:]
sect = _merge(sect)
return ((name, sect), l)
def parse(s):
l = deque(s.splitlines(True))
meta = dict()
sects = OrderedDict()
while l and l[0].strip().startswith('$'):
s = shlex.split(l[0][1:])
meta[s[0]] = s[1:]
l.popleft()
while l:
s, l = _next(l)
sects[s[0]] = s[1]
return Meta(sects, meta)
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