




"""simple docstring"""

import os
import re
from shutil import copyfile
from typing import List, Optional, Tuple

from ...tokenization_utils import PreTrainedTokenizer
from ...utils import logging


a					=			logging.get_logger(__name__)

a					=			{
    """vocab_file""": """vocab.txt""",
    """merges_file""": """bpe.codes""",
}

a					=			{
    """vocab_file""": {
        """vinai/phobert-base""": """https://huggingface.co/vinai/phobert-base/resolve/main/vocab.txt""",
        """vinai/phobert-large""": """https://huggingface.co/vinai/phobert-large/resolve/main/vocab.txt""",
    },
    """merges_file""": {
        """vinai/phobert-base""": """https://huggingface.co/vinai/phobert-base/resolve/main/bpe.codes""",
        """vinai/phobert-large""": """https://huggingface.co/vinai/phobert-large/resolve/main/bpe.codes""",
    },
}

a					=			{
    """vinai/phobert-base""": 256,
    """vinai/phobert-large""": 256,
}






def 						_snake_case     (					_snake_case							:					Any							)    ->					str:






      '''simple docstring'''


      _A					   =   set()
      _A					   =   word[0]
      for char in word[1:]:
            pairs.add((prev_char, char)							)
            _A					   =   char

      _A					   =   set(_UpperCAmelCase							)
      return pairs







class 				lowercase_       (     __UpperCamelCase							):



 '''simple docstring'''
 UpperCAmelCase    :     int        =	VOCAB_FILES_NAMES
 UpperCAmelCase    :     int        =	PRETRAINED_VOCAB_FILES_MAP
 UpperCAmelCase    :     str        =	PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES

 def __init__( self       :       Any    ,							_UpperCAmelCase       :       Optional[Any]    ,							_UpperCAmelCase       :       str    ,							_UpperCAmelCase       :       List[str]="<s>"    ,							_UpperCAmelCase       :       str="</s>"    ,							_UpperCAmelCase       :       Dict="</s>"    ,							_UpperCAmelCase       :       List[str]="<s>"    ,							_UpperCAmelCase       :       Optional[int]="<unk>"    ,							_UpperCAmelCase       :       Any="<pad>"    ,							_UpperCAmelCase       :       int="<mask>"    ,							**_UpperCAmelCase       :       Tuple    ,							):
       super().__init__(
           bos_token=_UpperCAmelCase    ,							eos_token=_UpperCAmelCase    ,							unk_token=_UpperCAmelCase    ,							sep_token=_UpperCAmelCase    ,							cls_token=_UpperCAmelCase    ,							pad_token=_UpperCAmelCase    ,							mask_token=_UpperCAmelCase    ,							**_UpperCAmelCase    ,							)

       _A					   =   vocab_file
       _A					   =   merges_file

       _A					   =   {}
       _A					   =   0
       _A					   =   1
       _A					   =   2
       _A					   =   3

       self.add_from_file(_UpperCAmelCase		)

       _A					   =   {v: k for k, v in self.encoder.items()}

       with open(_UpperCAmelCase    ,							encoding='utf-8'		) as merges_handle:
             _A					   =   merges_handle.read().split('\n'		)[:-1]
       _A					   =   [tuple(merge.split()[:-1]		) for merge in merges]
       _A					   =   dict(zip(_UpperCAmelCase    ,							range(len(_UpperCAmelCase		)		)		)		)
       _A					   =   {}

 def 			lowerCAmelCase_							( self       :       List[str]    ,							_UpperCAmelCase       :       List[int]    ,							_UpperCAmelCase       :       Optional[List[int]] = None		):

       if token_ids_a is None:
             return [self.cls_token_id] + token_ids_a + [self.sep_token_id]
       _A					   =   [self.cls_token_id]
       _A					   =   [self.sep_token_id]
       return cls + token_ids_a + sep + sep + token_ids_a + sep

 def 			lowerCAmelCase_							( self       :       Optional[Any]    ,							_UpperCAmelCase       :       List[int]    ,							_UpperCAmelCase       :       Optional[List[int]] = None    ,							_UpperCAmelCase       :       bool = False		):

       if already_has_special_tokens:
             return super().get_special_tokens_mask(
                 token_ids_a=_UpperCAmelCase    ,							token_ids_a=_UpperCAmelCase    ,							already_has_special_tokens=_UpperCAmelCase		)

       if token_ids_a is None:
             return [1] + ([0] * len(_UpperCAmelCase		)) + [1]
       return [1] + ([0] * len(_UpperCAmelCase		)) + [1, 1] + ([0] * len(_UpperCAmelCase		)) + [1]

 def 			lowerCAmelCase_							( self       :       Union[str, Any]    ,							_UpperCAmelCase       :       List[int]    ,							_UpperCAmelCase       :       Optional[List[int]] = None		):
       _A					   =   [self.sep_token_id]
       _A					   =   [self.cls_token_id]

       if token_ids_a is None:
             return len(cls + token_ids_a + sep		) * [0]
       return len(cls + token_ids_a + sep + sep + token_ids_a + sep		) * [0]

 @property
 def 			lowerCAmelCase_							( self       :       Dict		):
       return len(self.encoder		)

 def 			lowerCAmelCase_							( self       :       int		):
       return dict(self.encoder    ,							**self.added_tokens_encoder		)

 def 			lowerCAmelCase_							( self       :       Any    ,							_UpperCAmelCase       :       Optional[Any]		):
       if token in self.cache:
             return self.cache[token]
       _A					   =   tuple(_UpperCAmelCase		)
       _A					   =   tuple(list(word[:-1]		) + [word[-1] + '</w>']		)
       _A					   =   get_pairs(_UpperCAmelCase		)

       if not pairs:
             return token

       while True:
             _A					   =   min(_UpperCAmelCase    ,							key=lambda _UpperCAmelCase		: self.bpe_ranks.get(_UpperCAmelCase    ,							float('inf'		)		)		)
             if bigram not in self.bpe_ranks:
                   break
             _A					   =   bigram
             _A					   =   []
             _A					   =   0
             while i < len(_UpperCAmelCase		):
                   try:
                         _A					   =   word.index(_UpperCAmelCase    ,							_UpperCAmelCase		)
                   except ValueError:
                         new_word.extend(word[i:]		)
                         break
                   else:
                         new_word.extend(word[i:j]		)
                         _A					   =   j

                   if word[i] == first and i < len(_UpperCAmelCase		) - 1 and word[i + 1] == second:
                         new_word.append(first + second		)
                         i += 2
                   else:
                         new_word.append(word[i]		)
                         i += 1
             _A					   =   tuple(_UpperCAmelCase		)
             _A					   =   new_word
             if len(_UpperCAmelCase		) == 1:
                   break
             else:
                   _A					   =   get_pairs(_UpperCAmelCase		)
       _A					   =   '@@ '.join(_UpperCAmelCase		)
       _A					   =   word[:-4]
       _A					   =   word
       return word

 def 			lowerCAmelCase_							( self       :       int    ,							_UpperCAmelCase       :       List[str]		):
       _A					   =   []

       _A					   =   re.findall(r'\S+\n?'    ,							_UpperCAmelCase		)

       for token in words:
             split_tokens.extend(list(self.bpe(_UpperCAmelCase		).split(' '		)		)		)
       return split_tokens

 def 			lowerCAmelCase_							( self       :       str    ,							_UpperCAmelCase       :       Any		):
       return self.encoder.get(_UpperCAmelCase    ,							self.encoder.get(self.unk_token		)		)

 def 			lowerCAmelCase_							( self       :       Dict    ,							_UpperCAmelCase       :       Dict		):
       return self.decoder.get(_UpperCAmelCase    ,							self.unk_token		)

 def 			lowerCAmelCase_							( self       :       str    ,							_UpperCAmelCase       :       Union[str, Any]		):
       _A					   =   ' '.join(_UpperCAmelCase		).replace('@@ '    ,							''		).strip()
       return out_string

 def 			lowerCAmelCase_							( self       :       Any    ,							_UpperCAmelCase       :       str    ,							_UpperCAmelCase       :       Optional[str] = None		):
       if not os.path.isdir(_UpperCAmelCase		):
             logger.error(F'''Vocabulary path ({save_directory}) should be a directory'''		)
             return
       _A					   =   os.path.join(
           _UpperCAmelCase    ,							(filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['vocab_file']		)
       _A					   =   os.path.join(
           _UpperCAmelCase    ,							(filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['merges_file']		)

       if os.path.abspath(self.vocab_file		) != os.path.abspath(_UpperCAmelCase		):
             copyfile(self.vocab_file    ,							_UpperCAmelCase		)

       if os.path.abspath(self.merges_file		) != os.path.abspath(_UpperCAmelCase		):
             copyfile(self.merges_file    ,							_UpperCAmelCase		)

       return out_vocab_file, out_merge_file



 def 			lowerCAmelCase_							( self       :       List[str]    ,							_UpperCAmelCase       :       str		):
       if isinstance(_UpperCAmelCase    ,							_UpperCAmelCase		):
             try:
                   with open(_UpperCAmelCase    ,							'r'    ,							encoding='utf-8'		) as fd:
                         self.add_from_file(_UpperCAmelCase		)
             except FileNotFoundError as fnfe:
                   raise fnfe
             except UnicodeError:
                   raise Exception(F'''Incorrect encoding detected in {f}, please rebuild the dataset'''		)
             return

       _A					   =   f.readlines()
       for lineTmp in lines:
             _A					   =   lineTmp.strip()
             _A					   =   line.rfind(' '		)
             if idx == -1:
                   raise ValueError('Incorrect dictionary format, expected \'<token> <cnt>\''		)
             _A					   =   line[:idx]
             _A					   =   len(self.encoder		)








def        SCREAMING_SNAKE_CASE      (       _UpperCAmelCase )			->     set:
    lowerCamelCase__    :      Optional[Any]					 =		set()
    # edges = list of graph's edges
    lowerCamelCase__    :      List[str]					 =		get_edges(_UpperCAmelCase )

    # While there are still elements in edges list, take an arbitrary edge
    # (from_node, to_node) and add his extremity to chosen_vertices and then
    # remove all arcs adjacent to the from_node and to_node
    while edges:
        lowerCamelCase__ ,							lowerCamelCase__    :      str					 =		edges.pop()
        chosen_vertices.add(_UpperCAmelCase )
        chosen_vertices.add(_UpperCAmelCase )
        for edge in edges.copy():
            if from_node in edge or to_node in edge:
                edges.discard(_UpperCAmelCase )
    return chosen_vertices


def        SCREAMING_SNAKE_CASE      (       _UpperCAmelCase )			->     set:
    lowerCamelCase__    :      Union[str, Any]					 =		set()
    for from_node, to_nodes in graph.items():
        for to_node in to_nodes:
            edges.add((from_node, to_node) )
    return edges


if __name__ == "__main__":
    import doctest

    doctest.testmod()

    # graph = {0: [1, 3], 1: [0, 3], 2: [0, 3, 4], 3: [0, 1, 2], 4: [2, 3]}
    # print(f"Matching vertex cover:\n{matching_min_vertex_cover(graph)}")





