def fix_lists(dom):
# <ins> and <del> tags are not allowed within <ul> or <ol> tags.
# Move them to the nearest li, so that the numbering isn't interrupted.
_internalize_changes_markup(dom, set(['li']))
# Find all del > li and ins > li sets.
del_tags = set()
ins_tags = set()
for node in list(dom.getElementsByTagName('li')):
parent = node.parentNode
if parent.tagName == 'del':
del_tags.add(parent)
elif parent.tagName == 'ins':
ins_tags.add(parent)
# Change ins > li into li > ins.
for ins_tag in ins_tags:
distribute(ins_tag)
# Change del > li into li.del-li > del.
for del_tag in del_tags:
children = list(del_tag.childNodes)
unwrap(del_tag)
for c in children:
if c.nodeName == 'li':
c.setAttribute('class', 'del-li')
wrap_inner(c, 'del')
def fix_lists(dom):
# <ins> and <del> tags are not allowed within <ul> or <ol> tags.
# Move them to the nearest li, so that the numbering isn't interrupted.
_internalize_changes_markup(dom, set(["li"]))
# Find all del > li and ins > li sets.
del_tags = set()
ins_tags = set()
for node in list(dom.getElementsByTagName("li")):
parent = node.parentNode
if parent.tagName == "del":
del_tags.add(parent)
elif parent.tagName == "ins":
ins_tags.add(parent)
# Change ins > li into li > ins.
for ins_tag in ins_tags:
distribute(ins_tag)
# Change del > li into li.del-li > del.
for del_tag in del_tags:
children = list(del_tag.childNodes)
unwrap(del_tag)
for c in children:
if c.nodeName == "li":
c.setAttribute("class", "del-li")
wrap_inner(c, "del")
def _internalize_changes_markup(dom, child_tag_names):
# Delete tags are always ordered first.
for del_tag in list(dom.getElementsByTagName('del')):
ins_tag = del_tag.nextSibling
# The one child tag of `del_tag` should be child_tag_names
if len(del_tag.childNodes) != 1:
continue
if ins_tag is None or len(ins_tag.childNodes) != 1:
continue
if ins_tag.tagName != 'ins':
continue
deleted_tag = del_tag.firstChild
if not is_element(deleted_tag):
continue
if deleted_tag.tagName not in child_tag_names:
continue
# The one child tag of `ins_tag` should be child_tag_names
inserted_tag = ins_tag.firstChild
if not is_element(inserted_tag):
continue
if inserted_tag.tagName not in child_tag_names:
continue
attributes = dict([key, value]
for key, value in inserted_tag.attributes.items())
nodes_to_unwrap = [
deleted_tag,
inserted_tag,
]
for n in nodes_to_unwrap:
unwrap(n)
new_node = wrap_nodes([del_tag, ins_tag], inserted_tag.tagName)
for key, value in attributes.items():
new_node.setAttribute(key, value)
def _internalize_changes_markup(dom, child_tag_names):
# Delete tags are always ordered first.
for del_tag in list(dom.getElementsByTagName("del")):
ins_tag = del_tag.nextSibling
# The one child tag of `del_tag` should be child_tag_names
if len(del_tag.childNodes) != 1:
continue
if ins_tag is None or len(ins_tag.childNodes) != 1:
continue
if ins_tag.tagName != "ins":
continue
deleted_tag = del_tag.firstChild
if not is_element(deleted_tag):
continue
if deleted_tag.tagName not in child_tag_names:
continue
# The one child tag of `ins_tag` should be child_tag_names
inserted_tag = ins_tag.firstChild
if not is_element(inserted_tag):
continue
if inserted_tag.tagName not in child_tag_names:
continue
attributes = dict([key, value] for key, value in inserted_tag.attributes.items())
nodes_to_unwrap = [deleted_tag, inserted_tag]
for n in nodes_to_unwrap:
unwrap(n)
new_node = wrap_nodes([del_tag, ins_tag], inserted_tag.tagName)
for key, value in attributes.items():
new_node.setAttribute(key, value)
def distribute(node):
"""
Wrap a copy of the given element around the contents of each of its
children, removing the node in the process.
"""
children = list(c for c in node.childNodes if is_element(c))
unwrap(node)
tag_name = node.tagName
for c in children:
wrap_inner(c, tag_name)
def distribute(node):
"""
Wrap a copy of the given element around the contents of each of its
children, removing the node in the process.
"""
children = list(c for c in node.childNodes if is_element(c))
unwrap(node)
tag_name = node.tagName
for c in children:
wrap_inner(c, tag_name)
def remove_nesting(dom, tag_name):
"""
Unwrap items in the node list that have ancestors with the same tag.
"""
for node in dom.getElementsByTagName(tag_name):
for ancestor in ancestors(node):
if ancestor is node:
continue
if ancestor is dom.documentElement:
break
if ancestor.tagName == tag_name:
unwrap(node)
break
def remove_nesting(dom, tag_name):
"""
Unwrap items in the node list that have ancestors with the same tag.
"""
for node in dom.getElementsByTagName(tag_name):
for ancestor in ancestors(node):
if ancestor is node:
continue
if ancestor is dom.documentElement:
break
if ancestor.tagName == tag_name:
unwrap(node)
break
def fix_lists(dom):
# <ins> and <del> tags are not allowed within <ul> or <ol> tags.
# Move them to the nearest li, so that the numbering isn't interrupted.
# Find all del > li and ins > li sets.
del_tags = set()
ins_tags = set()
for node in list(dom.getElementsByTagName('li')):
parent = node.parentNode
if parent.tagName == 'del':
del_tags.add(parent)
elif parent.tagName == 'ins':
ins_tags.add(parent)
# Change ins > li into li > ins.
for ins_tag in ins_tags:
distribute(ins_tag)
# Change del > li into li.del-li > del.
for del_tag in del_tags:
children = list(del_tag.childNodes)
unwrap(del_tag)
for c in children:
if c.nodeName == 'li':
c.setAttribute('class', 'del-li')
wrap_inner(c, 'del')
def _strip_changes_old(node):
for ins_node in node.getElementsByTagName('ins'):
remove_node(ins_node)
for del_node in node.getElementsByTagName('del'):
unwrap(del_node)
def _strip_changes_old(node):
for ins_node in node.getElementsByTagName('ins'):
remove_node(ins_node)
for del_node in node.getElementsByTagName('del'):
unwrap(del_node)