
import json
import os
from functools import lru_cache
from typing import List, Optional, Tuple

import regex as re

from ...tokenization_utils import AddedToken, PreTrainedTokenizer
from ...utils import logging


UpperCAmelCase	      = logging.get_logger(__name__)


UpperCAmelCase	      = {'''vocab_file''': '''vocab.json''', '''merges_file''': '''merges.txt'''}

UpperCAmelCase	      = {
    '''vocab_file''': {
        '''allenai/longformer-base-4096''': '''https://huggingface.co/allenai/longformer-base-4096/resolve/main/vocab.json''',
        '''allenai/longformer-large-4096''': (
            '''https://huggingface.co/allenai/longformer-large-4096/resolve/main/vocab.json'''
        ),
        '''allenai/longformer-large-4096-finetuned-triviaqa''': (
            '''https://huggingface.co/allenai/longformer-large-4096-finetuned-triviaqa/resolve/main/vocab.json'''
        ),
        '''allenai/longformer-base-4096-extra.pos.embd.only''': (
            '''https://huggingface.co/allenai/longformer-base-4096-extra.pos.embd.only/resolve/main/vocab.json'''
        ),
        '''allenai/longformer-large-4096-extra.pos.embd.only''': (
            '''https://huggingface.co/allenai/longformer-large-4096-extra.pos.embd.only/resolve/main/vocab.json'''
        ),
    },
    '''merges_file''': {
        '''allenai/longformer-base-4096''': '''https://huggingface.co/allenai/longformer-base-4096/resolve/main/merges.txt''',
        '''allenai/longformer-large-4096''': (
            '''https://huggingface.co/allenai/longformer-large-4096/resolve/main/merges.txt'''
        ),
        '''allenai/longformer-large-4096-finetuned-triviaqa''': (
            '''https://huggingface.co/allenai/longformer-large-4096-finetuned-triviaqa/resolve/main/merges.txt'''
        ),
        '''allenai/longformer-base-4096-extra.pos.embd.only''': (
            '''https://huggingface.co/allenai/longformer-base-4096-extra.pos.embd.only/resolve/main/merges.txt'''
        ),
        '''allenai/longformer-large-4096-extra.pos.embd.only''': (
            '''https://huggingface.co/allenai/longformer-large-4096-extra.pos.embd.only/resolve/main/merges.txt'''
        ),
    },
}

UpperCAmelCase	      = {
    '''allenai/longformer-base-4096''': 4096,
    '''allenai/longformer-large-4096''': 4096,
    '''allenai/longformer-large-4096-finetuned-triviaqa''': 4096,
    '''allenai/longformer-base-4096-extra.pos.embd.only''': 4096,
    '''allenai/longformer-large-4096-extra.pos.embd.only''': 4096,
}






@lru_cache()
# Copied from transformers.models.roberta.tokenization_roberta.bytes_to_unicode
def 							UpperCAmelCase_		(							):
	lowercase       =    (
	    list(range(ord('!'							) ,							ord('~'							) + 1							)							) + list(range(ord('¡'							) ,							ord('¬'							) + 1							)							) + list(range(ord('®'							) ,							ord('ÿ'							) + 1							)							)
	)
	lowercase       =    bs[:]
	lowercase       =    0
	for b in range(2**8							):
		if b not in bs:
			bs.append(__lowercase							)
			cs.append(2**8 + n							)
			n += 1
	lowercase       =    [chr(__lowercase							) for n in cs]
	return dict(zip(__lowercase ,							__lowercase							)							)






def 							UpperCAmelCase_		(							__SCREAMING_SNAKE_CASE							):
	lowercase       =    set()
	lowercase       =    word[0]
	for char in word[1:]:
		pairs.add((prev_char, char)							)
		lowercase       =    char
	return pairs







class        A_   (			lowerCAmelCase_   ):




	'''simple docstring'''


	_UpperCamelCase     :     List[Any]							 =       VOCAB_FILES_NAMES
	_UpperCamelCase     :     int							 =       PRETRAINED_VOCAB_FILES_MAP
	_UpperCamelCase     :     Dict							 =       PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
	_UpperCamelCase     :     List[Any]							 =       ["""input_ids""", """attention_mask"""]





	def __init__(       self		,    snake_case		,    snake_case		,    snake_case="replace"		,    snake_case="<s>"		,    snake_case="</s>"		,    snake_case="</s>"		,    snake_case="<s>"		,    snake_case="<unk>"		,    snake_case="<pad>"		,    snake_case="<mask>"		,    snake_case=False		,    **snake_case		,    ):
		lowercase       =    AddedToken(snake_case_		,    lstrip=snake_case_		,    rstrip=snake_case_       ) if isinstance(snake_case_		,    snake_case_       ) else bos_token
		lowercase       =    AddedToken(snake_case_		,    lstrip=snake_case_		,    rstrip=snake_case_       ) if isinstance(snake_case_		,    snake_case_       ) else eos_token
		lowercase       =    AddedToken(snake_case_		,    lstrip=snake_case_		,    rstrip=snake_case_       ) if isinstance(snake_case_		,    snake_case_       ) else sep_token
		lowercase       =    AddedToken(snake_case_		,    lstrip=snake_case_		,    rstrip=snake_case_       ) if isinstance(snake_case_		,    snake_case_       ) else cls_token
		lowercase       =    AddedToken(snake_case_		,    lstrip=snake_case_		,    rstrip=snake_case_       ) if isinstance(snake_case_		,    snake_case_       ) else unk_token
		lowercase       =    AddedToken(snake_case_		,    lstrip=snake_case_		,    rstrip=snake_case_       ) if isinstance(snake_case_		,    snake_case_       ) else pad_token

		# Mask token behave like a normal word, i.e. include the space before it
		lowercase       =    AddedToken(snake_case_		,    lstrip=snake_case_		,    rstrip=snake_case_       ) if isinstance(snake_case_		,    snake_case_       ) else mask_token

		super().__init__(
		    errors=snake_case_		,    bos_token=snake_case_		,    eos_token=snake_case_		,    unk_token=snake_case_		,    sep_token=snake_case_		,    cls_token=snake_case_		,    pad_token=snake_case_		,    mask_token=snake_case_		,    add_prefix_space=snake_case_		,    **snake_case_		,    )

		with open(snake_case_		,    encoding='utf-8'       ) as vocab_handle:
			lowercase       =    json.load(snake_case_       )
		lowercase       =    {v: k for k, v in self.encoder.items()}
		lowercase       =    errors  # how to handle errors in decoding
		lowercase       =    bytes_to_unicode()
		lowercase       =    {v: k for k, v in self.byte_encoder.items()}
		with open(snake_case_		,    encoding='utf-8'       ) as merges_handle:
			lowercase       =    merges_handle.read().split('\n'       )[1:-1]
		lowercase       =    [tuple(merge.split()       ) for merge in bpe_merges]
		lowercase       =    dict(zip(snake_case_		,    range(len(snake_case_       )       )       )       )
		lowercase       =    {}
		lowercase       =    add_prefix_space

		# Should have added re.IGNORECASE so BPE merges can happen for capitalized versions of contractions
		lowercase       =    re.compile(r'\'s|\'t|\'re|\'ve|\'m|\'ll|\'d| ?\p{L}+| ?\p{N}+| ?[^\s\p{L}\p{N}]+|\s+(?!\S)|\s+'       )





	@property
	def 	SCREAMING_SNAKE_CASE__						(       self       ):
		return len(self.encoder       )





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





	def 	SCREAMING_SNAKE_CASE__						(       self		,    snake_case       ):
		if token in self.cache:
			return self.cache[token]
		lowercase       =    tuple(snake_case_       )
		lowercase       =    get_pairs(snake_case_       )

		if not pairs:
			return token

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

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





	def 	SCREAMING_SNAKE_CASE__						(       self		,    snake_case       ):
		lowercase       =    []
		for token in re.findall(self.pat		,    snake_case_       ):
			lowercase       =    ''.join(
			    self.byte_encoder[b] for b in token.encode('utf-8'       )       )  # Maps all our bytes to unicode strings, avoiding control tokens of the BPE (spaces in our case)
			bpe_tokens.extend(bpe_token for bpe_token in self.bpe(snake_case_       ).split(' '       )       )
		return bpe_tokens





	def 	SCREAMING_SNAKE_CASE__						(       self		,    snake_case       ):
		return self.encoder.get(snake_case_		,    self.encoder.get(self.unk_token       )       )





	def 	SCREAMING_SNAKE_CASE__						(       self		,    snake_case       ):
		return self.decoder.get(snake_case_       )





	def 	SCREAMING_SNAKE_CASE__						(       self		,    snake_case       ):
		lowercase       =    ''.join(snake_case_       )
		lowercase       =    bytearray([self.byte_decoder[c] for c in text]       ).decode('utf-8'		,    errors=self.errors       )
		return text





	def 	SCREAMING_SNAKE_CASE__						(       self		,    snake_case		,    snake_case = None       ):
		if not os.path.isdir(snake_case_       ):
			logger.error(F'''Vocabulary path ({save_directory}) should be a directory'''       )
			return
		lowercase       =    os.path.join(
		    snake_case_		,    (filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['vocab_file']       )
		lowercase       =    os.path.join(
		    snake_case_		,    (filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['merges_file']       )

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

		lowercase       =    0
		with open(snake_case_		,    '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 snake_case       : 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!'       )
					lowercase       =    token_index
				writer.write(' '.join(snake_case_       ) + '\n'       )
				index += 1

		return vocab_file, merge_file





	def 	SCREAMING_SNAKE_CASE__						(       self		,    snake_case		,    snake_case = None       ):
		if token_ids_a is None:
			return [self.cls_token_id] + token_ids_a + [self.sep_token_id]
		lowercase       =    [self.cls_token_id]
		lowercase       =    [self.sep_token_id]
		return cls + token_ids_a + sep + sep + token_ids_a + sep





	def 	SCREAMING_SNAKE_CASE__						(       self		,    snake_case		,    snake_case = None		,    snake_case = False       ):
		if already_has_special_tokens:
			return super().get_special_tokens_mask(
			    token_ids_a=snake_case_		,    token_ids_a=snake_case_		,    already_has_special_tokens=snake_case_       )

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





	def 	SCREAMING_SNAKE_CASE__						(       self		,    snake_case		,    snake_case = None       ):
		lowercase       =    [self.sep_token_id]
		lowercase       =    [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]





	def 	SCREAMING_SNAKE_CASE__						(       self		,    snake_case		,    snake_case=False		,    **snake_case       ):
		lowercase       =    kwargs.pop('add_prefix_space'		,    self.add_prefix_space       )
		if (is_split_into_words or add_prefix_space) and (len(snake_case_       ) > 0 and not text[0].isspace()):
			lowercase       =    ' ' + text
		return (text, kwargs)








'''simple docstring'''




import math
def 	UpperCAmelCase_							(					__lowercase							:      int       )		->       bool:


     '''simple docstring'''



     return math.sqrt(__lowercase       ) * math.sqrt(__lowercase       ) == num
def 	UpperCAmelCase_							(					__lowercase							:      int       )		->       bool:


     '''simple docstring'''



     _UpperCAmelCase     							=   0
     _UpperCAmelCase     							=   n
     while left <= right:
          _UpperCAmelCase     							=   (left + right) // 2
          if mid**2 == n:
               return True
          elif mid**2 > n:
               _UpperCAmelCase     							=   mid - 1
          else:
               _UpperCAmelCase     							=   mid + 1
     return False


if __name__ == "__main__":
  import doctest

  doctest.testmod()




