





'''simple docstring'''






import pytest

from datasets.utils.version import Version





@pytest.mark.parametrize(
    'other, expected_equality'					,	[
        (Version('1.0.0'    ), True),
        ('1.0.0', True),
        (Version('2.0.0'    ), False),
        ('2.0.0', False),
        ('1', False),
        ('a', False),
        (1, False),
        (None, False),
    ]					,	)
def    lowercase_   (		lowercase__					,	lowercase__    ) ->Tuple:
						_snake_case: Union[str, Any]	       =		Version('1.0.0'    )
						assert (version == other) is expected_equality
						assert (version != other) is not expected_equality
						assert (hash(lowercase__    ) == hash(lowercase__    )) is expected_equality












'''simple docstring'''






import json
import os
import re
import warnings
from pathlib import Path
from shutil import copyfile
from typing import Any, Dict, List, Optional, Tuple, Union

import sentencepiece

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


A :			Optional[Any]							   =      logging.get_logger(__name__)

A :			Optional[Any]							   =      {
    'source_spm': 'source.spm',
    'target_spm': 'target.spm',
    'vocab': 'vocab.json',
    'target_vocab_file': 'target_vocab.json',
    'tokenizer_config_file': 'tokenizer_config.json',
}

A :			Tuple							   =      {
    'source_spm': {
        'Helsinki-NLP/opus-mt-en-de': 'https://huggingface.co/Helsinki-NLP/opus-mt-en-de/resolve/main/source.spm'
    },
    'target_spm': {
        'Helsinki-NLP/opus-mt-en-de': 'https://huggingface.co/Helsinki-NLP/opus-mt-en-de/resolve/main/target.spm'
    },
    'vocab': {
        'Helsinki-NLP/opus-mt-en-de': 'https://huggingface.co/Helsinki-NLP/opus-mt-en-de/resolve/main/vocab.json'
    },
    'tokenizer_config_file': {
        'Helsinki-NLP/opus-mt-en-de': (
            'https://huggingface.co/Helsinki-NLP/opus-mt-en-de/resolve/main/tokenizer_config.json'
        )
    },
}

A :			Optional[int]							   =      {'Helsinki-NLP/opus-mt-en-de': 512}
A :			Any							   =      {}







class       lowerCamelCase       (    __UpperCAmelCase	):
					_SCREAMING_SNAKE_CASE				 =     VOCAB_FILES_NAMES
					_SCREAMING_SNAKE_CASE				 =     PRETRAINED_VOCAB_FILES_MAP
					_SCREAMING_SNAKE_CASE				 =     PRETRAINED_INIT_CONFIGURATION
					_SCREAMING_SNAKE_CASE				 =     PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
					_SCREAMING_SNAKE_CASE				 =     ["input_ids", "attention_mask"]
					_SCREAMING_SNAKE_CASE				 =     re.compile(">>.+<<"	)  # type: re.Pattern


					def __init__(       self						:	Optional[Any]							,  __snake_case						:	Tuple							,  __snake_case						:	Optional[int]							,  __snake_case						:	Optional[Any]							,  __snake_case						:	List[Any]=None							,  __snake_case						:	int=None							,  __snake_case						:	Optional[Any]=None							,  __snake_case						:	Optional[int]="<unk>"							,  __snake_case						:	str="</s>"							,  __snake_case						:	Tuple="<pad>"							,  __snake_case						:	List[str]=5_12							,  __snake_case						:	Optional[Dict[str, Any]] = None							,  __snake_case						:	Union[str, Any]=False							,  **__snake_case						:	int							,  ):





											'''simple docstring'''





											_snake_case: List[str]	       =		{} if sp_model_kwargs is None else sp_model_kwargs

											super().__init__(
											    # bos_token=bos_token,  unused. Start decoding with config.decoder_start_token_id
											    source_lang=__snake_case							,  target_lang=__snake_case							,  unk_token=__snake_case							,  eos_token=__snake_case							,  pad_token=__snake_case							,  model_max_length=__snake_case							,  sp_model_kwargs=self.sp_model_kwargs							,  target_vocab_file=__snake_case							,  separate_vocabs=__snake_case							,  **__snake_case							,  )
											assert Path(__snake_case							).exists(), f'''cannot find spm source {source_spm}'''

											_snake_case: List[Any]	       =		separate_vocabs
											_snake_case: List[Any]	       =		load_json(__snake_case							)
											if self.unk_token not in self.encoder:
																	raise KeyError('<unk> token must be in vocab'							)
											assert self.pad_token in self.encoder

											if separate_vocabs:
																	_snake_case: List[str]	       =		load_json(__snake_case							)
																	_snake_case: Optional[int]	       =		{v: k for k, v in self.target_encoder.items()}
																	_snake_case: Tuple	       =		[]
											else:
																	_snake_case: Any	       =		{v: k for k, v in self.encoder.items()}
																	_snake_case: list	       =		[k for k in self.encoder if k.startswith('>>'							) and k.endswith('<<'							)]

											_snake_case: List[Any]	       =		source_lang
											_snake_case: List[str]	       =		target_lang
											_snake_case: List[str]	       =		[source_spm, target_spm]

											# load SentencePiece model for pre-processing
											_snake_case: Optional[Any]	       =		load_spm(__snake_case							,  self.sp_model_kwargs							)
											_snake_case: List[str]	       =		load_spm(__snake_case							,  self.sp_model_kwargs							)
											_snake_case: str	       =		self.spm_source
											_snake_case: int	       =		self.encoder

											# Multilingual target side: default to using first supported language code.

											self._setup_normalizer()


					def  SCREAMING_SNAKE_CASE_		(       self						:	str							):





											'''simple docstring'''





											try:
																	from sacremoses import MosesPunctNormalizer

																	_snake_case: List[Any]	       =		MosesPunctNormalizer(self.source_lang							).normalize
											except (ImportError, FileNotFoundError):
																	warnings.warn('Recommended: pip install sacremoses.'							)
																	_snake_case: List[Any]	       =		lambda __snake_case							: x


					def  SCREAMING_SNAKE_CASE_		(       self						:	Optional[int]							,  __snake_case						:	str							):





											'''simple docstring'''





											return self.punc_normalizer(__snake_case							) if x else ""


					def  SCREAMING_SNAKE_CASE_		(       self						:	Optional[int]							,  __snake_case						:	Tuple							):





											'''simple docstring'''





											return self.current_encoder.get(__snake_case							,  self.current_encoder[self.unk_token]							)


					def  SCREAMING_SNAKE_CASE_		(       self						:	List[str]							,  __snake_case						:	str							):





											'''simple docstring'''





											_snake_case: List[Any]	       =		self.language_code_re.match(__snake_case							)
											_snake_case: list	       =		[match.group(0							)] if match else []
											return code, self.language_code_re.sub(''							,  __snake_case							)


					def  SCREAMING_SNAKE_CASE_		(       self						:	Optional[int]							,  __snake_case						:	str							):





											'''simple docstring'''





											_snake_case       ,    _snake_case: Optional[Any]	       =		self.remove_language_code(__snake_case							)
											_snake_case: Union[str, Any]	       =		self.current_spm.encode(__snake_case							,  out_type=__snake_case							)
											return code + pieces


					def  SCREAMING_SNAKE_CASE_		(       self						:	Dict							,  __snake_case						:	int							):





											'''simple docstring'''





											return self.decoder.get(__snake_case							,  self.unk_token							)


					def  SCREAMING_SNAKE_CASE_		(       self						:	int							,  __snake_case						:	Tuple							,  **__snake_case						:	int							):





											'''simple docstring'''





											return super().batch_decode(__snake_case							,  **__snake_case							)


					def  SCREAMING_SNAKE_CASE_		(       self						:	Any							,  __snake_case						:	Any							,  **__snake_case						:	List[str]							):





											'''simple docstring'''





											return super().decode(__snake_case							,  **__snake_case							)


					def  SCREAMING_SNAKE_CASE_		(       self						:	int							,  __snake_case						:	List[str]							):





											'''simple docstring'''





											_snake_case: Optional[int]	       =		self.spm_source if self._decode_use_source_tokenizer else self.spm_target
											_snake_case: List[Any]	       =		[]
											_snake_case: Any	       =		''
											for token in tokens:
																	# make sure that special tokens are not decoded using sentencepiece model
																	if token in self.all_special_tokens:
																							out_string += sp_model.decode_pieces(__snake_case							) + token + " "
																							_snake_case: Any	       =		[]
																	else:
																							current_sub_tokens.append(__snake_case							)
											out_string += sp_model.decode_pieces(__snake_case							)
											return out_string.strip()


					def  SCREAMING_SNAKE_CASE_		(       self						:	Optional[Any]							,  __snake_case						:	Tuple							,  __snake_case						:	Union[str, Any]=None							):





											'''simple docstring'''





											if token_ids_a is None:
																	return token_ids_a + [self.eos_token_id]
											# We don't expect to process pairs, but leave the pair logic for API consistency
											return token_ids_a + token_ids_a + [self.eos_token_id]


					def  SCREAMING_SNAKE_CASE_		(       self						:	Optional[Any]							):





											'''simple docstring'''





											_snake_case: List[Any]	       =		self.spm_source
											_snake_case: List[str]	       =		self.encoder


					def  SCREAMING_SNAKE_CASE_		(       self						:	int							):





											'''simple docstring'''





											_snake_case: int	       =		self.spm_target
											if self.separate_vocabs:
																	_snake_case: Union[str, Any]	       =		self.target_encoder


					@property
					def  SCREAMING_SNAKE_CASE_		(       self						:	Optional[int]							):





											'''simple docstring'''





											return len(self.encoder							)


					def  SCREAMING_SNAKE_CASE_		(       self						:	Tuple							,  __snake_case						:	str							,  __snake_case						:	Optional[str] = None							):





											'''simple docstring'''





											if not os.path.isdir(__snake_case							):
																	logger.error(f'''Vocabulary path ({save_directory}) should be a directory'''							)
																	return
											_snake_case: str	       =		[]

											if self.separate_vocabs:
																	_snake_case: Optional[int]	       =		os.path.join(
																	    __snake_case							,  (filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['vocab']							,  )
																	_snake_case: Optional[int]	       =		os.path.join(
																	    __snake_case							,  (filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['target_vocab_file']							,  )
																	save_json(self.encoder							,  __snake_case							)
																	save_json(self.target_encoder							,  __snake_case							)
																	saved_files.append(__snake_case							)
																	saved_files.append(__snake_case							)
											else:
																	_snake_case: int	       =		os.path.join(
																	    __snake_case							,  (filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['vocab']							)
																	save_json(self.encoder							,  __snake_case							)
																	saved_files.append(__snake_case							)

											for spm_save_filename, spm_orig_path, spm_model in zip(
											    [VOCAB_FILES_NAMES['source_spm'], VOCAB_FILES_NAMES['target_spm']]							,  self.spm_files							,  [self.spm_source, self.spm_target]							,  ):
																	_snake_case: Any	       =		os.path.join(
																	    __snake_case							,  (filename_prefix + '-' if filename_prefix else '') + spm_save_filename							)
																	if os.path.abspath(__snake_case							) != os.path.abspath(__snake_case							) and os.path.isfile(__snake_case							):
																							copyfile(__snake_case							,  __snake_case							)
																							saved_files.append(__snake_case							)
																	elif not os.path.isfile(__snake_case							):
																							with open(__snake_case							,  'wb'							) as fi:
																													_snake_case: Any	       =		spm_model.serialized_model_proto()
																													fi.write(__snake_case							)
																							saved_files.append(__snake_case							)

											return tuple(__snake_case							)


					def  SCREAMING_SNAKE_CASE_		(       self						:	List[Any]							):





											'''simple docstring'''





											return self.get_src_vocab()


					def  SCREAMING_SNAKE_CASE_		(       self						:	Any							):





											'''simple docstring'''





											return dict(self.encoder							,  **self.added_tokens_encoder							)


					def  SCREAMING_SNAKE_CASE_		(       self						:	Dict							):





											'''simple docstring'''





											return dict(self.target_encoder							,  **self.added_tokens_decoder							)


					def __getstate__(       self						:	Union[str, Any]							):





											'''simple docstring'''





											_snake_case: str	       =		self.__dict__.copy()
											state.update(
											    {k: None for k in ['spm_source', 'spm_target', 'current_spm', 'punc_normalizer', 'target_vocab_file']}							)
											return state


					def __setstate__(       self						:	str							,  __snake_case						:	Dict							):





											'''simple docstring'''





											_snake_case: str	       =		d

											# for backward compatibility
											if not hasattr(self							,  'sp_model_kwargs'							):
																	_snake_case: List[Any]	       =		{}

											_snake_case       ,    _snake_case: Dict	       =		(load_spm(__snake_case							,  self.sp_model_kwargs							) for f in self.spm_files)
											_snake_case: str	       =		self.spm_source
											self._setup_normalizer()


					def  SCREAMING_SNAKE_CASE_		(       self						:	Optional[int]							,  *__snake_case						:	Tuple							,  **__snake_case						:	Tuple							):





											'''simple docstring'''





											return 1


					def  SCREAMING_SNAKE_CASE_		(       self						:	Any							,  __snake_case						:	Optional[int]							):





											'''simple docstring'''





											_snake_case: Dict	       =		set(self.all_special_ids							)  # call it once instead of inside list comp
											all_special_ids.remove(self.unk_token_id							)  # <unk> is only sometimes special
											return [1 if x in all_special_ids else 0 for x in seq]




					def  SCREAMING_SNAKE_CASE_		(       self						:	Optional[Any]							,  __snake_case						:	List							,  __snake_case						:	Optional[List] = None							,  __snake_case						:	bool = False							):





											'''simple docstring'''





											if already_has_special_tokens:
																	return self._special_token_mask(__snake_case							)
											elif token_ids_a is None:
																	return self._special_token_mask(__snake_case							) + [1]
											else:
																	return self._special_token_mask(token_ids_a + token_ids_a							) + [1]





def    lowercase_   (		lowercase__					,	lowercase__    ) ->sentencepiece.SentencePieceProcessor:
						_snake_case: Union[str, Any]	       =		sentencepiece.SentencePieceProcessor(**lowercase__    )
						spm.Load(lowercase__    )
						return spm





def    lowercase_   (		lowercase__					,	lowercase__    ) ->None:
						with open(lowercase__					,	'w'    ) as f:
												json.dump(lowercase__					,	lowercase__					,	indent=2    )





def    lowercase_   (		lowercase__    ) ->Union[Dict, List]:
						with open(lowercase__					,	'r'    ) as f:
												return json.load(lowercase__    )





