





'''simple docstring'''




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

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


a__					:			Dict          =     logging.get_logger(__name__)


a__					:			Optional[int]          =     {
    '''vocab_file''': '''vocab.json''',
    '''tokenizer_config_file''': '''tokenizer_config.json''',
    '''merges_file''': '''merges.txt''',
}

a__					:			List[Any]          =     {
    '''vocab_file''': {
        '''facebook/s2t-wav2vec2-large-en-de''': (
            '''https://huggingface.co/facebook/s2t-wav2vec2-large-en-de/resolve/main/vocab.json'''
        ),
    },
    '''tokenizer_config_file''': {
        '''facebook/s2t-wav2vec2-large-en-de''': (
            '''https://huggingface.co/facebook/s2t-wav2vec2-large-en-de/resolve/main/tokenizer_config.json'''
        ),
    },
    '''merges_file''': {
        '''facebook/s2t-wav2vec2-large-en-de''': (
            '''https://huggingface.co/facebook/s2t-wav2vec2-large-en-de/resolve/main/merges.txt'''
        ),
    },
}

a__					:			Any          =     '''</w>'''
a__					:			List[str]          =     '''@@ '''




def 						__lowerCamelCase			(	UpperCAmelCase_							)   ->List[Any]:
	snake_case__	       =   set()
	snake_case__	       =   word[0]
	for char in word[1:]:
		pairs.add((prev_char, char)							)
		snake_case__	       =   char
	return pairs


# Speech2Text2 has no max input length
a__					:			Tuple          =     {'''facebook/s2t-wav2vec2-large-en-de''': 1024}







class 				__snake_case     (					__magic_name__							):
	__lowerCAmelCase       						=  VOCAB_FILES_NAMES
	__lowerCAmelCase       						=  PRETRAINED_VOCAB_FILES_MAP
	__lowerCAmelCase       						=  PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
	__lowerCAmelCase       						=  ['''input_ids''', '''attention_mask''']





	def __init__(		self      ,       UpperCamelCase_      ,       UpperCamelCase_="<s>"      ,       UpperCamelCase_="<pad>"      ,       UpperCamelCase_="</s>"      ,       UpperCamelCase_="<unk>"      ,       UpperCamelCase_=False      ,       UpperCamelCase_=None      ,       **UpperCamelCase_      ,       )      ->		Optional[int]:
		super().__init__(
		    unk_token=UpperCamelCase_      ,       bos_token=UpperCamelCase_      ,       eos_token=UpperCamelCase_      ,       pad_token=UpperCamelCase_      ,       do_lower_case=UpperCamelCase_      ,       **UpperCamelCase_      ,       )

		snake_case__	       =   do_lower_case

		with open(UpperCamelCase_      ,       encoding='utf-8'		) as vocab_handle:
			snake_case__	       =   json.load(UpperCamelCase_		)
		snake_case__	       =   {v: k for k, v in self.encoder.items()}

		if merges_file is None:
			logger.info(F'''No merges files provided. {self.__class__.__name__} can only be used for decoding.'''		)

			snake_case__	       =   None
			snake_case__	       =   None
		else:
			with open(UpperCamelCase_      ,       encoding='utf-8'		) as merges_handle:
				snake_case__	       =   merges_handle.read().split('\n'		)[:-1]

			snake_case__	       =   [tuple(merge.split()[:2]		) for merge in merges]
			snake_case__	       =   dict(zip(UpperCamelCase_      ,       range(len(UpperCamelCase_		)		)		)		)
			snake_case__	       =   {}





	@property
	def   _snake_case   (		self		)      ->		int:
		return len(self.decoder		)





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





	def   _snake_case   (		self      ,       UpperCamelCase_		)      ->		Union[str, Any]:
		snake_case__	       =   tuple(token[:-1]		) + (token[-1] + BPE_TOKEN_MERGES,)
		if token in self.cache:
			return self.cache[token]
		snake_case__	       =   get_pairs(UpperCamelCase_		)

		if not pairs:
			return token

		while True:
			snake_case__	       =   min(UpperCamelCase_      ,       key=lambda UpperCamelCase_		: self.bpe_ranks.get(UpperCamelCase_      ,       float('inf'		)		)		)
			if bigram not in self.bpe_ranks:
				break
			snake_case__       ,  snake_case__	       =   bigram
			snake_case__	       =   []
			snake_case__	       =   0
			while i < len(UpperCamelCase_		):
				try:
					snake_case__	       =   word.index(UpperCamelCase_      ,       UpperCamelCase_		)
				except ValueError:
					new_word.extend(word[i:]		)
					break
				else:
					new_word.extend(word[i:j]		)
					snake_case__	       =   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
			snake_case__	       =   tuple(UpperCamelCase_		)
			snake_case__	       =   new_word
			if len(UpperCamelCase_		) == 1:
				break
			else:
				snake_case__	       =   get_pairs(UpperCamelCase_		)
		snake_case__	       =   ' '.join(UpperCamelCase_		)
		if word == "\n  " + BPE_TOKEN_MERGES:
			snake_case__	       =   '\n' + BPE_TOKEN_MERGES

		if word.endswith(UpperCamelCase_		):
			snake_case__	       =   word.replace(UpperCamelCase_      ,       ''		)

		snake_case__	       =   word.replace(' '      ,       UpperCamelCase_		)
		snake_case__	       =   word
		return word





	def   _snake_case   (		self      ,       UpperCamelCase_		)      ->		int:

		if self.bpe_ranks is None:
			raise ValueError(
			    'This tokenizer was instantiated without a `merges.txt` file, so'
			    ' that it can only be used for decoding, not for encoding.'
			    'Make sure to provide `merges.txt` file at instantiation to enable '
			    'encoding.'		)

		if self.do_lower_case:
			snake_case__	       =   text.lower()

		snake_case__	       =   text.split()

		snake_case__	       =   []
		for token in text:
			if token:
				split_tokens.extend(list(self.bpe(UpperCamelCase_		).split(' '		)		)		)

		return split_tokens





	def   _snake_case   (		self      ,       UpperCamelCase_		)      ->		int:
		return self.encoder.get(UpperCamelCase_      ,       self.encoder.get(self.unk_token		)		)





	def   _snake_case   (		self      ,       UpperCamelCase_		)      ->		str:
		snake_case__	       =   self.decoder.get(UpperCamelCase_      ,       self.unk_token		)
		return result





	def   _snake_case   (		self      ,       UpperCamelCase_		)      ->		str:
		snake_case__	       =   ' '.join(UpperCamelCase_		)

		# make sure @@ tokens are concatenated
		snake_case__	       =   ''.join(string.split(UpperCamelCase_		)		)

		return string





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

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

		snake_case__	       =   0
		if self.bpe_ranks is None:
			return (vocab_file,)

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

		return (vocab_file, merges_file)










'''simple docstring'''




from math import loga




def 						__lowerCamelCase			(	UpperCAmelCase_							)   ->int:
	if a < 0:
		raise ValueError('Input value must be a positive integer'							)
	elif isinstance(UpperCAmelCase_					,				UpperCAmelCase_							):
		raise TypeError('Input value must be a \'int\' type'							)
	return 0 if (a == 0) else int(loga(a & -a							)							)


if __name__ == "__main__":
			import doctest

			doctest.testmod()



