def resolve_partial(d, spec):
remainder = deque(spec)
#parts = deque([d])
res = ChainMap(d)
while remainder:
ele = remainder[0]
if isinstance(ele, tuple):
name, index = ele
else:
name, index = ele, None
if '_namespaces' in d:
d = ChainMap(d['_namespaces'], d)
if name in d:
val = extract_nsval(d, name)
if isinstance(val, dict):
if index is not None:
raise TypeError("Value %s is a dict, but a "
"list index was specified" % name)
res = res.new_child(val)
remainder.popleft()
elif isinstance(val, list):
if index is None:
raise TypeError("Value %s is a list, but no "
"list index was specified." % name)
val = val[index]
if hasattr(val, 'as_namespace'):
if '_namespaces' in d:
d['_namespaces'] = {}
if not name in d['_namespaces']:
d['_namespcaces']['name'] = val.as_namespace()
val = d['_namespcaces']['name']
if isinstance(val, dict):
res = res.new_child(val)
remainder.popleft()
else:
raise TypeError("Value %s in list %s must "
"be a dictionary, not %s" % (val, ele, type(val)))
else:
raise TypeError("Value %s in %s is not expandable "
"as namespace" % (val, d))
d = res
else:
break
return(remainder, res)
def resolve_partial(ns, spec):
if not isinstance(ns, ChainMap):
ns = ChainMap(ns)
if _namespaces not in ns:
ns.maps[-1][_namespaces] = {}
remainder = ()
if not spec:
return (), ns
nsmap = ns[_namespaces]
if spec in nsmap:
return tuple(), nsmap[spec]
for i in range(len(spec)):
currspec = spec[:i+1]
if currspec in nsmap:
ns = nsmap[currspec]
continue
ele = currspec[-1]
try:
val = extract_nsval(ns, ele)
except ElementNotFound:
#currspec and remainder overlap in one element
remainder = spec[i:]
break
ns = ns.new_child(val)
nsmap[currspec] = ns
return remainder, ns