def unlink_attribute_references(group, ref_attr_names_types=None):
# Locate any variable and group attributes previously identified as
# variable references, and reconstruct the attribute string from the names
# of the referenced elements.
groups_and_vars = ncg.all_variables(group) + ncg.all_groups(group)
for elem in groups_and_vars:
for ref_name, _ in REFERENCE_ATTRIBUTES_NAMES_AND_TYPES:
attr = elem.attributes.get(ref_name, None)
if attr:
attr.value = ' '.join(defstring_from_reftag(reftag)
for reftag in attr.value)
def link_attribute_references(group):
# Locate all variable and group attributes that contain variable
# references (i.e. names), and replace their values with data containing
# links to the actual variables, so we can reconstruct these attributes
# after possibly renaming variables.
groups_and_vars = ncg.all_variables(group) + ncg.all_groups(group)
for elem in groups_and_vars:
in_group = (elem if isinstance(elem, nco.Group)
else elem.container.in_element)
assert isinstance(in_group, nco.Group)
for ref_name, ref_type in REFERENCE_ATTRIBUTES_NAMES_AND_TYPES:
attr = elem.attributes.get(ref_name, None)
if attr:
refs = split_noempties(attr.value, ' ')
attr.value = [reftag_from_defstring(ref, in_group, ref_type)
for ref in refs]
def test_all_groups(self):
walk_objs = list(all_groups(self.root))
self._check_all_of_type(walk_objs, nco.Group)