def _clear_context(elem: etree._Element) -> None:
elem.clear()
while elem.getprevious() is not None:
del elem.getparent()[0]
return None
def remove_preserving_whitespace(element: Element) -> None:
parent = element.getparent()
if element.tail:
prev = element.getprevious()
if prev is not None:
prev.tail = (prev.tail or "") + element.tail
else:
parent.text = (parent.text or "") + element.tail
parent.remove(element)
def _copy_root_siblings(source: etree._Element, target: etree._Element):
stack = []
current_element = source.getprevious()
while current_element is not None:
stack.append(current_element)
current_element = current_element.getprevious()
while stack:
target.addprevious(copy(stack.pop()))
stack = []
current_element = source.getnext()
while current_element is not None:
stack.append(current_element)
current_element = current_element.getnext()
while stack:
target.addnext(copy(stack.pop()))
def load_app(
app: et._Element, direction: str
) -> Tuple[Union[int, Tuple[int, int], None], List[Dict[str, str]], List[Dict[
str, str]], List[str], et._Element]:
if direction == 'next':
while True:
app = app.getnext()
if app.tag == 'app':
break
elif direction == 'prev':
while True:
app = app.getprevious()
if app.tag == 'app':
break
selected_app = get_focus_app(app)
rdgs = get_all_rdgs(app)
arcs, nodes = get_arcs(app)
return selected_app, rdgs, arcs, nodes, app
def remove_node(self, node: ET._Element, hold_tail=False):
"""
删除指定节点
@param {ET._Element} node - 要删除的节点
@param {bool} hold_tail=False - 是否保留上一节点的tail信息
"""
_parent = node.getparent()
if _parent is not None:
if hold_tail and node.tail is not None:
# 保存上一节点tail信息
_tail = node.tail
_previous = node.getprevious()
if _previous is not None:
_previous.tail = (_previous.tail or '') + _tail
else:
_parent.text = (_parent.text or '') + _tail
_parent.remove(node)
else:
# 直接删除
_parent.remove(node)
def cleanup(elem: etree._Element):
elem.clear()
while elem.getprevious() is not None:
del elem.getparent()[0] # clean up preceding siblings
