def relex_import(self, startnode, version = 0):
"""Optimised relex for freshly imported files."""
success = self.lex(startnode.symbol.name)
bos = startnode.prev_term # bos
parent = bos.parent
eos = parent.children.pop()
last_node = bos
for match in success:
if match is success[0]:
# reuse old node for fist node to mimic the behaviour of a
# normal relex
node = startnode
node.symbol.name = match[0]
else:
node = TextNode(Terminal(match[0]))
node.lookup = match[1]
parent.children.append(node)
last_node.next_term = node
last_node.right = node
node.left = last_node
node.prev_term = last_node
node.parent = parent
last_node = node
node.mark_changed()
parent.children.append(eos)
last_node.right = eos # link to eos
last_node.next_term = eos
eos.left = last_node
eos.prev_term = last_node
bos.mark_changed()
eos.mark_changed()
parent.mark_changed()
def relex_import(self, startnode, version = 0):
"""
Replace a node with the tokens of its name
:param startnode: node to expand
:param version: version assigned to each created node
:return:
"""
success = self.lex(startnode.symbol.name)
bos = startnode.prev_term # bos
startnode.parent.remove_child(startnode)
parent = bos.parent
eos = parent.children.pop()
last_node = bos
for match in success:
node = TextNode(Terminal(match[0]))
node.version = version
node.lookup = match[1]
parent.children.append(node)
last_node.next_term = node
last_node.right = node
node.left = last_node
node.prev_term = last_node
node.parent = parent
last_node = node
parent.children.append(eos)
last_node.right = eos # link to eos
last_node.next_term = eos
eos.left = last_node
eos.prev_term = last_node
def relex_import(self, startnode):
success = self.lex(startnode.symbol.name)
bos = startnode.prev_term # bos
startnode.parent.remove_child(startnode)
parent = bos.parent
eos = parent.children.pop()
last_node = bos
for match in success:
node = TextNode(Terminal(match[0]))
node.lookup = match[1]
parent.children.append(node)
last_node.next_term = node
last_node.right = node
node.left = last_node
node.prev_term = last_node
node.parent = parent
last_node = node
parent.children.append(eos)
last_node.right = eos # link to eos
last_node.next_term = eos
eos.left = last_node
eos.prev_term = last_node
def relex_import(self, startnode, version=0):
success = self.lex(startnode.symbol.name)
bos = startnode.prev_term # bos
startnode.parent.remove_child(startnode)
parent = bos.parent
eos = parent.children.pop()
last_node = bos
for match in success:
node = TextNode(Terminal(match[0]))
node.version = version
node.lookup = match[1]
parent.children.append(node)
last_node.next_term = node
last_node.right = node
node.left = last_node
node.prev_term = last_node
node.parent = parent
last_node = node
parent.children.append(eos)
last_node.right = eos # link to eos
last_node.next_term = eos
eos.left = last_node
eos.prev_term = last_node