def compare_trees(tree1, tree2):
"""Generates an xmldiff from two lxml trees."""
opts = {'ratio_mode': 'accurate', 'F': 0.8}
formatter = formatting.DiffFormatter(normalize=formatting.WS_BOTH,
pretty_print=True)
diff = diff_trees(tree1, tree2, diff_options=opts, formatter=formatter)
return patch.DiffParser().parse(diff)
def patch_file(actions, tree):
"""Takes two filenames or streams, one with XML the other a diff"""
tree = etree.parse(tree)
if isinstance(actions, six.string_types):
# It's a string, so it's a filename
with open(actions) as f:
actions = f.read()
else:
# We assume it's a stream
actions = actions.read()
actions = patch.DiffParser().parse(actions)
tree = patch_tree(actions, tree)
return etree.tounicode(tree)
def patch_text(actions, tree):
"""Takes a string with XML and a string with actions"""
tree = etree.fromstring(tree)
actions = patch.DiffParser().parse(actions)
tree = patch_tree(actions, tree)
return etree.tounicode(tree)