

import json
import os
from typing import Dict, List, Optional, Tuple

import regex as re

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


SCREAMING_SNAKE_CASE		:str						=     logging.get_logger(__name__)


SCREAMING_SNAKE_CASE		:Union[str, Any]						=     {
    """vocab_file""": """vocab.json""",
    """merges_file""": """merges.txt""",
    """tokenizer_config_file""": """tokenizer_config.json""",
}

SCREAMING_SNAKE_CASE		:Optional[Any]						=     {
    """vocab_file""": {
        """facebook/blenderbot_small-90M""": """https://huggingface.co/facebook/blenderbot_small-90M/resolve/main/vocab.json"""
    },
    """merges_file""": {
        """facebook/blenderbot_small-90M""": """https://huggingface.co/facebook/blenderbot_small-90M/resolve/main/merges.txt"""
    },
    """tokenizer_config_file""": {
        """facebook/blenderbot_small-90M""": (
            """https://huggingface.co/facebook/blenderbot_small-90M/resolve/main/tokenizer_config.json"""
        )
    },
}

SCREAMING_SNAKE_CASE		:Tuple						=     {"""facebook/blenderbot_small-90M""": 512}




def 			lowerCAmelCase(      SCREAMING_SNAKE_CASE_			)->						int:



    """simple docstring"""






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

    UpperCamelCase_			  =						set(SCREAMING_SNAKE_CASE_			)
    return pairs






class 						__magic_name__					(							snake_case				):
     UpperCamelCase_	:Dict										=      VOCAB_FILES_NAMES
     UpperCamelCase_	:Any										=      PRETRAINED_VOCAB_FILES_MAP
     UpperCamelCase_	:Dict										=      PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
     UpperCamelCase_	:str										=      ["""input_ids""", """attention_mask"""]






     def __init__(				self		,						_lowercase		,						_lowercase		,						_lowercase="__start__"		,						_lowercase="__end__"		,						_lowercase="__unk__"		,						_lowercase="__null__"		,						**_lowercase		,						)->     Optional[Any]:
         super().__init__(unk_token=_lowercase		,						bos_token=_lowercase		,						eos_token=_lowercase		,						pad_token=_lowercase		,						**_lowercase	)

         with open(_lowercase		,						encoding="utf-8"	) as vocab_handle:
             UpperCamelCase_			  =						json.load(_lowercase	)
         UpperCamelCase_			  =						{v: k for k, v in self.encoder.items()}
         with open(_lowercase		,						encoding="utf-8"	) as merges_handle:
             UpperCamelCase_			  =						merges_handle.read().split("\n"	)[1:-1]
         UpperCamelCase_			  =						[tuple(merge.split()	) for merge in merges]
         UpperCamelCase_			  =						dict(zip(_lowercase		,						range(len(_lowercase	)	)	)	)
         UpperCamelCase_			  =						{}






     @property
     def 	UpperCAmelCase_				(				self	)->     int:
         return len(self.encoder	)






     def 	UpperCAmelCase_				(				self	)->     Dict:
         return dict(self.encoder		,						**self.added_tokens_encoder	)






     def 	UpperCAmelCase_				(				self		,						_lowercase	)->     str:
         if token in self.cache:
             return self.cache[token]
         UpperCamelCase_			  =						re.sub("([.,!?()])"		,						r" \1"		,						_lowercase	)
         UpperCamelCase_			  =						re.sub("(')"		,						r" \1 "		,						_lowercase	)
         UpperCamelCase_			  =						re.sub(r"\s{2,}"		,						" "		,						_lowercase	)
         if "\n" in token:
             UpperCamelCase_			  =						token.replace("\n"		,						" __newln__"	)

         UpperCamelCase_			  =						token.split(" "	)
         UpperCamelCase_			  =						[]
         for token in tokens:
             if not len(_lowercase	):
                 continue

             UpperCamelCase_			  =						token.lower()
             UpperCamelCase_			  =						tuple(_lowercase	)
             UpperCamelCase_			  =						tuple(list(word[:-1]	) + [word[-1] + "</w>"]	)
             UpperCamelCase_			  =						get_pairs(_lowercase	)

             if not pairs:
                 words.append(_lowercase	)
                 continue

             while True:
                 UpperCamelCase_			  =						min(_lowercase		,						key=lambda _lowercase	: self.bpe_ranks.get(_lowercase		,						float("inf"	)	)	)
                 if bigram not in self.bpe_ranks:
                     break
                 UpperCamelCase_  ,       UpperCamelCase_			  =						bigram
                 UpperCamelCase_			  =						[]
                 UpperCamelCase_			  =						0

                 while i < len(_lowercase	):
                     try:
                         UpperCamelCase_			  =						word.index(_lowercase		,						_lowercase	)
                         new_word.extend(word[i:j]	)
                         UpperCamelCase_			  =						j
                     except ValueError:
                         new_word.extend(word[i:]	)
                         break

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

             UpperCamelCase_			  =						word
             words.append(_lowercase	)
         return " ".join(_lowercase	)






     def 	UpperCAmelCase_				(				self		,						_lowercase	)->     List[str]:
         UpperCamelCase_			  =						[]

         UpperCamelCase_			  =						re.findall(r"\S+\n?"		,						_lowercase	)

         for token in words:
             split_tokens.extend(list(self.bpe(_lowercase	).split(" "	)	)	)
         return split_tokens






     def 	UpperCAmelCase_				(				self		,						_lowercase	)->     int:
         UpperCamelCase_			  =						token.lower()
         return self.encoder.get(_lowercase		,						self.encoder.get(self.unk_token	)	)






     def 	UpperCAmelCase_				(				self		,						_lowercase	)->     str:
         return self.decoder.get(_lowercase		,						self.unk_token	)






     def 	UpperCAmelCase_				(				self		,						_lowercase	)->     str:
         UpperCamelCase_			  =						" ".join(_lowercase	).replace("@@ "		,						""	).strip()
         return out_string






     def 	UpperCAmelCase_				(				self		,						_lowercase		,						_lowercase = None	)->     Tuple[str]:
         if not os.path.isdir(_lowercase	):
             logger.error(F"Vocabulary path ({save_directory}) should be a directory"	)
             return
         UpperCamelCase_			  =						os.path.join(
             _lowercase		,						(filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"]	)
         UpperCamelCase_			  =						os.path.join(
             _lowercase		,						(filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["merges_file"]	)

         with open(_lowercase		,						"w"		,						encoding="utf-8"	) as f:
             f.write(json.dumps(self.encoder		,						indent=2		,						sort_keys=_lowercase		,						ensure_ascii=_lowercase	) + "\n"	)

         UpperCamelCase_			  =						0
         with open(_lowercase		,						"w"		,						encoding="utf-8"	) as writer:
             writer.write("#version: 0.2\n"	)
             for bpe_tokens, token_index in sorted(self.bpe_ranks.items()		,						key=lambda _lowercase	: kv[1]	):
                 if index != token_index:
                     logger.warning(
                         F"Saving vocabulary to {merge_file}: BPE merge indices are not consecutive."
                         " Please check that the tokenizer is not corrupted!"	)
                     UpperCamelCase_			  =						token_index
                 writer.write(" ".join(_lowercase	) + "\n"	)
                 index += 1

         return vocab_file, merge_file



import os
import unittest

from transformers import LayoutLMTokenizer, LayoutLMTokenizerFast
from transformers.models.layoutlm.tokenization_layoutlm import VOCAB_FILES_NAMES
from transformers.testing_utils import require_tokenizers

from ...test_tokenization_common import TokenizerTesterMixin






@require_tokenizers
class 						__magic_name__					(							snake_case			,      unittest.TestCase				):
     UpperCamelCase_	:List[Any]										=      LayoutLMTokenizer
     UpperCamelCase_	:Dict										=      LayoutLMTokenizerFast
     UpperCamelCase_	:List[str]										=      True
     UpperCamelCase_	:Dict										=      True






     def 	UpperCAmelCase_				(				self	)->     str:
         super().setUp()

         UpperCamelCase_			  =						[
             "[UNK]",
             "[CLS]",
             "[SEP]",
             "want",
             "##want",
             "##ed",
             "wa",
             "un",
             "runn",
             "##ing",
             ",",
             "low",
             "lowest",
         ]
         UpperCamelCase_			  =						os.path.join(self.tmpdirname		,						VOCAB_FILES_NAMES["vocab_file"]	)
         with open(self.vocab_file		,						"w"		,						encoding="utf-8"	) as vocab_writer:
             vocab_writer.write("".join([x + "\n" for x in vocab_tokens]	)	)






     def 	UpperCAmelCase_				(				self		,						**_lowercase	)->     List[str]:
         return LayoutLMTokenizer.from_pretrained(self.tmpdirname		,						**_lowercase	)






     def 	UpperCAmelCase_				(				self		,						_lowercase	)->     Union[str, Any]:
         UpperCamelCase_			  =						"UNwant\u00E9d,running"
         UpperCamelCase_			  =						"unwanted, running"
         return input_text, output_text






     def 	UpperCAmelCase_				(				self	)->     Tuple:
         UpperCamelCase_			  =						self.tokenizer_class(self.vocab_file	)

         UpperCamelCase_			  =						tokenizer.tokenize("UNwant\u00E9d,running"	)
         self.assertListEqual(_lowercase		,						["un", "##want", "##ed", ",", "runn", "##ing"]	)
         self.assertListEqual(tokenizer.convert_tokens_to_ids(_lowercase	)		,						[7, 4, 5, 10, 8, 9]	)






     def 	UpperCAmelCase_				(				self	)->     Dict:
         pass
