def ref(self, obj, name, label):
"""
Set up a ref for resolution
Required Arguments:
obj -- object to put the referenced object onto
name -- name of key in idref dictionary where object is stored
label -- label to resolve
See Also:
self.label()
"""
label = clean_label(label)
if not label:
return
# Resolve ref if label already exists
if self.labels.has_key(label):
obj.idref[name] = self.labels[label]
return
# If the label doesn't exist, store away the object for later
if not self.refs.has_key(label):
self.refs[label] = []
self.refs[label].append(obj)
# Make a fake node with the ID on it for now
node = self['Macro']()
node.id = label
obj.idref[name] = node
def ref(self, obj, name, label):
"""
Set up a ref for resolution
Required Arguments:
obj -- object to put the referenced object onto
name -- name of key in idref dictionary where object is stored
label -- label to resolve
See Also:
self.label()
"""
label = clean_label(label)
if not label:
return
# Resolve ref if label already exists
if self.labels.has_key(label):
obj.idref[name] = self.labels[label]
return
# If the label doesn't exist, store away the object for later
if not self.refs.has_key(label):
self.refs[label] = []
self.refs[label].append(obj)
# Make a fake node with the ID on it for now
node = self['Macro']()
node.id = label
obj.idref[name] = node
def label(self, label, node=None):
"""
Set a label to the current labelable object
Required Arguments:
label -- string that contains the label
Keyword Arguments:
node -- a node to apply the label to rather than the currently
labelable object
See Also:
self.ref()
"""
label = clean_label(label)
if not label:
return
if node is None:
node = self.currentlabel
if node is not None:
self.persistentLabels[label] = self.labels[label] = node
node.id = label
# Resolve any outstanding references to this object
if self.refs.has_key(label) and self.labels.has_key(label):
for obj in self.refs[label]:
for key, value in obj.idref.items():
if value.id != label:
continue
obj.idref[key] = self.labels[label]
del self.refs[label]
def label(self, label, node=None):
"""
Set a label to the current labelable object
Required Arguments:
label -- string that contains the label
Keyword Arguments:
node -- a node to apply the label to rather than the currently
labelable object
See Also:
self.ref()
"""
label = clean_label(label)
if not label:
return
if node is None:
node = self.currentlabel
if node is not None:
self.persistentLabels[label] = self.labels[label] = node
node.id = label
# Resolve any outstanding references to this object
if self.refs.has_key(label) and self.labels.has_key(label):
for obj in self.refs[label]:
for key, value in obj.idref.items():
if value.id != label:
continue
obj.idref[key] = self.labels[label]
del self.refs[label]