
import html

from ...feature_extraction_utils import BatchFeature, FeatureExtractionMixin
from ...utils import is_bsa_available, logging, requires_backends


if is_bsa_available():
						import bsa
						from bsa import BeautifulSoup


_snake_case      :							List[str]     	=    logging.get_logger(__name__)





class   UpperCamelCase_      (      __a		):







						'''simple docstring'''



						def __init__(			self							:Optional[Any]		,    **lowerCAmelCase__							:Optional[int]     )  ->int:
										requires_backends(self		,    ["bs4"]     )
										super().__init__(**lowerCAmelCase__     )





						def        SCREAMING_SNAKE_CASE(			self							:Optional[int]		,    lowerCAmelCase__							:str     )  ->Dict:
										lowercase         =      []
										lowercase         =      []
										lowercase         =      element if element.name else element.parent
										for parent in child.parents:  # type: bs4.element.Tag
														lowercase         =      parent.find_all(child.name		,    recursive=lowerCAmelCase__     )
														xpath_tags.append(child.name     )
														xpath_subscripts.append(
														    0 if 1 == len(lowerCAmelCase__     ) else next(i for i, s in enumerate(lowerCAmelCase__		,    1     ) if s is child     )     )
														lowercase         =      parent
										xpath_tags.reverse()
										xpath_subscripts.reverse()
										return xpath_tags, xpath_subscripts





						def        SCREAMING_SNAKE_CASE(			self							:str		,    lowerCAmelCase__							:Tuple     )  ->Optional[Any]:
										lowercase         =      BeautifulSoup(lowerCAmelCase__		,    "html.parser"     )

										lowercase         =      []
										lowercase         =      []
										lowercase         =      []

										for element in html_code.descendants:
														if type(lowerCAmelCase__     ) == bsa.element.NavigableString:
																		if type(element.parent     ) != bsa.element.Tag:
																						continue

																		lowercase         =      html.unescape(lowerCAmelCase__     ).strip()
																		if not text_in_this_tag:
																						continue

																		all_doc_strings.append(lowerCAmelCase__     )

																		lowercase     ,	lowercase         =      self.xpath_soup(lowerCAmelCase__     )
																		stringaxtag_seq.append(lowerCAmelCase__     )
																		stringaxsubs_seq.append(lowerCAmelCase__     )

										if len(lowerCAmelCase__     ) != len(lowerCAmelCase__     ):
														raise ValueError("Number of doc strings and xtags does not correspond"     )
										if len(lowerCAmelCase__     ) != len(lowerCAmelCase__     ):
														raise ValueError("Number of doc strings and xsubs does not correspond"     )

										return all_doc_strings, stringaxtag_seq, stringaxsubs_seq





						def        SCREAMING_SNAKE_CASE(			self							:List[Any]		,    lowerCAmelCase__							:List[str]		,    lowerCAmelCase__							:Any     )  ->str:
										lowercase         =      ""
										for tagname, subs in zip(lowerCAmelCase__		,    lowerCAmelCase__     ):
														xpath += F'''/{tagname}'''
														if subs != 0:
																		xpath += F'''[{subs}]'''
										return xpath





						def __call__(			self							:List[str]		,    lowerCAmelCase__							:Union[str, Any]     )  ->BatchFeature:
										lowercase         =      False

										# Check that strings has a valid type
										if isinstance(lowerCAmelCase__		,    lowerCAmelCase__     ):
														lowercase         =      True
										elif isinstance(lowerCAmelCase__		,    (list, tuple)     ):
														if len(lowerCAmelCase__     ) == 0 or isinstance(html_strings[0]		,    lowerCAmelCase__     ):
																		lowercase         =      True

										if not valid_strings:
														raise ValueError(
														    "HTML strings must of type `str`, `List[str]` (batch of examples), "
														    F'''but is of type {type(lowerCAmelCase__     )}.'''     )

										lowercase         =      bool(isinstance(lowerCAmelCase__		,    (list, tuple)     ) and (isinstance(html_strings[0]		,    lowerCAmelCase__     ))     )

										if not is_batched:
														lowercase         =      [html_strings]

										# Get nodes + xpaths
										lowercase         =      []
										lowercase         =      []
										for html_string in html_strings:
														lowercase     ,	lowercase     ,	lowercase         =      self.get_three_from_single(lowerCAmelCase__     )
														nodes.append(lowerCAmelCase__     )
														lowercase         =      []
														for node, tag_list, sub_list in zip(lowerCAmelCase__		,    lowerCAmelCase__		,    lowerCAmelCase__     ):
																		lowercase         =      self.construct_xpath(lowerCAmelCase__		,    lowerCAmelCase__     )
																		xpath_strings.append(lowerCAmelCase__     )
														xpaths.append(lowerCAmelCase__     )

										# return as Dict
										lowercase         =      {"nodes": nodes, "xpaths": xpaths}
										lowercase         =      BatchFeature(data=lowerCAmelCase__		,    tensor_type=lowerCAmelCase__     )

										return encoded_inputs


def  __snake_case							(	__magic_name__						):







				'''simple docstring'''


				lowercase         =      set()
				# To detect a back edge, keep track of vertices currently in the recursion stack
				lowercase         =      set()
				return any(
				    node not in visited and depth_first_search(__magic_name__		,    __magic_name__		,    __magic_name__		,    __magic_name__						)
				    for node in graph						)

def  __snake_case							(	__magic_name__		,    __magic_name__		,    __magic_name__		,    __magic_name__						):







				'''simple docstring'''


				visited.add(__magic_name__						)
				rec_stk.add(__magic_name__						)

				for node in graph[vertex]:
								if node not in visited:
												if depth_first_search(__magic_name__		,    __magic_name__		,    __magic_name__		,    __magic_name__						):
																return True
								elif node in rec_stk:
												return True

    # The node needs to be removed from recursion stack before function ends
				rec_stk.remove(__magic_name__						)
				return False


if __name__ == "__main__":
						from doctest import testmod

						testmod()
