




import sys
from dataclasses import dataclass
from typing import TYPE_CHECKING, Dict, List, Optional, Tuple, Union

import pandas as pd
import pyarrow as pa

import datasets
import datasets.config
from datasets.features.features import require_storage_cast
from datasets.table import table_cast


if TYPE_CHECKING:
							import sqlitea

							import sqlalchemy


UpperCamelCase__						=		datasets.utils.logging.get_logger(__name__)


@dataclass
class 							__SCREAMING_SNAKE_CASE				(						datasets.BuilderConfig    ):
					_lowerCamelCase						    =					None
					_lowerCamelCase						    =					None
					_lowerCamelCase						    =					None
					_lowerCamelCase						    =					True
					_lowerCamelCase						    =					None
					_lowerCamelCase						    =					None
					_lowerCamelCase						    =					None
					_lowerCamelCase						    =					1_00_00
					_lowerCamelCase						    =					None

					def       lowercase_				(							self   ):







						'''simple docstring'''




						if self.sql is None:
							raise ValueError('sql must be specified'   )
						if self.con is None:
							raise ValueError('con must be specified'   )

					def       lowercase_				(							self					,			__lowercase					,			__lowercase = None					,			):







						'''simple docstring'''




						lowerCamelCase_				:						List[Any]				  =				config_kwargs.copy()
						# We need to stringify the Selectable object to make its hash deterministic

						# The process of stringifying is explained here: http://docs.sqlalchemy.org/en/latest/faq/sqlexpressions.html
						lowerCamelCase_				:						int				  =				config_kwargs['sql']
						if not isinstance(_SCREAMING_SNAKE_CASE					,			_SCREAMING_SNAKE_CASE   ):
							if datasets.config.SQLALCHEMY_AVAILABLE and "sqlalchemy" in sys.modules:
								import sqlalchemy

								if isinstance(_SCREAMING_SNAKE_CASE					,			sqlalchemy.sql.Selectable   ):
									lowerCamelCase_				:						str				  =				sqlalchemy.create_engine(config_kwargs['con'].split('://'   )[0] + '://'   )
									lowerCamelCase_				:						Tuple				  =				str(sql.compile(dialect=engine.dialect   )   )
									lowerCamelCase_				:						Dict				  =				sql_str
								else:
									raise TypeError(
									    f"Supported types for 'sql' are string and sqlalchemy.sql.Selectable but got {type(_SCREAMING_SNAKE_CASE   )}: {sql}"   )
							else:
								raise TypeError(
								    f"Supported types for 'sql' are string and sqlalchemy.sql.Selectable but got {type(_SCREAMING_SNAKE_CASE   )}: {sql}"   )
						lowerCamelCase_				:						Any				  =				config_kwargs['con']
						if not isinstance(_SCREAMING_SNAKE_CASE					,			_SCREAMING_SNAKE_CASE   ):
							lowerCamelCase_				:						Dict				  =				id(_SCREAMING_SNAKE_CASE   )
							logger.info(
							    f"SQL connection 'con' of type {type(_SCREAMING_SNAKE_CASE   )} couldn't be hashed properly. To enable hashing, specify 'con' as URI string instead."   )

						return super().create_config_id(_SCREAMING_SNAKE_CASE					,			custom_features=_SCREAMING_SNAKE_CASE   )





					@property
					def       lowercase_				(							self   ):







						'''simple docstring'''




						lowerCamelCase_				:						Optional[Any]				  =				{
						    'index_col': self.index_col,
						    'columns': self.columns,
						    'params': self.params,
						    'coerce_float': self.coerce_float,
						    'parse_dates': self.parse_dates,
						}
						return pd_read_sql_kwargs


class 							__SCREAMING_SNAKE_CASE				(						datasets.ArrowBasedBuilder    ):
					_lowerCamelCase						    =					SqlConfig

					def       lowercase_				(							self   ):







						'''simple docstring'''




						return datasets.DatasetInfo(features=self.config.features   )

					def       lowercase_				(							self					,			__lowercase   ):







						'''simple docstring'''




						return [datasets.SplitGenerator(name=datasets.Split.TRAIN					,			gen_kwargs={}   )]

					def       lowercase_				(							self					,			__lowercase   ):







						'''simple docstring'''




						if self.config.features is not None:
							lowerCamelCase_				:						int				  =				self.config.features.arrow_schema
							if all(not require_storage_cast(_SCREAMING_SNAKE_CASE   ) for feature in self.config.features.values()   ):
								# cheaper cast
								lowerCamelCase_				:						List[str]				  =				pa.Table.from_arrays([pa_table[field.name] for field in schema]					,			schema=_SCREAMING_SNAKE_CASE   )
							else:
								# more expensive cast; allows str <-> int/float or str to Audio for example
								lowerCamelCase_				:						List[str]				  =				table_cast(_SCREAMING_SNAKE_CASE					,			_SCREAMING_SNAKE_CASE   )
						return pa_table





					def       lowercase_				(							self   ):







						'''simple docstring'''




						lowerCamelCase_				:						Dict				  =				self.config.chunksize
						lowerCamelCase_				:						Optional[Any]				  =				pd.read_sql(
						    self.config.sql					,			self.config.con					,			chunksize=_SCREAMING_SNAKE_CASE					,			**self.config.pd_read_sql_kwargs   )
						lowerCamelCase_				:						str				  =				[sql_reader] if chunksize is None else sql_reader
						for chunk_idx, df in enumerate(_SCREAMING_SNAKE_CASE   ):
							lowerCamelCase_				:						Optional[int]				  =				pa.Table.from_pandas(_SCREAMING_SNAKE_CASE   )
							yield chunk_idx, self._cast_table(_SCREAMING_SNAKE_CASE   )


"""simple docstring"""







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

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


lowerCamelCase__     =						logging.get_logger(__name__)

lowerCamelCase__     =						{
    """vocab_file""": """vocab.json""",
    """merges_file""": """merges.txt""",
}

lowerCamelCase__     =						{
    """vocab_file""": {
        """microsoft/biogpt""": """https://huggingface.co/microsoft/biogpt/resolve/main/vocab.json""",
    },
    """merges_file""": {"""microsoft/biogpt""": """https://huggingface.co/microsoft/biogpt/resolve/main/merges.txt"""},
}

lowerCamelCase__     =						{
    """microsoft/biogpt""": 1_024,
}
def        __lowerCAmelCase							(_UpperCamelCase						):
	__lowerCAmelCase     :		Tuple		     = set()
	__lowerCAmelCase     :		str		     = word[0]
	for char in word[1:]:
		pairs.add((prev_char, char)						)
		__lowerCAmelCase     :		Optional[Any]		     = char
	return pairs




class 					A__			(      _lowerCamelCase):
		A_		:			Union[str, Any]							  =      VOCAB_FILES_NAMES
		A_		:			List[Any]							  =      PRETRAINED_VOCAB_FILES_MAP
		A_		:			Optional[Any]							  =      PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
		A_		:			int							  =      ['input_ids', 'attention_mask']

		def __init__( self			,						_SCREAMING_SNAKE_CASE			,						_SCREAMING_SNAKE_CASE			,						_SCREAMING_SNAKE_CASE="<unk>"			,						_SCREAMING_SNAKE_CASE="<s>"			,						_SCREAMING_SNAKE_CASE="</s>"			,						_SCREAMING_SNAKE_CASE="</s>"			,						_SCREAMING_SNAKE_CASE="<pad>"			,						**_SCREAMING_SNAKE_CASE			,						):
			super().__init__(
			    bos_token=_SCREAMING_SNAKE_CASE			,						eos_token=_SCREAMING_SNAKE_CASE			,						sep_token=_SCREAMING_SNAKE_CASE			,						unk_token=_SCREAMING_SNAKE_CASE			,						pad_token=_SCREAMING_SNAKE_CASE			,						**_SCREAMING_SNAKE_CASE			,						)

			try:
				import sacremoses
			except ImportError:
				raise ImportError(
				    'You need to install sacremoses to use BioGptTokenizer. '
				    'See https://pypi.org/project/sacremoses/ for installation.'					)

			__lowerCAmelCase     :		int		     = 'en'
			__lowerCAmelCase     :		Optional[Any]		     = sacremoses
			# cache of sm.MosesTokenizer instance
			__lowerCAmelCase     :		Optional[int]		     = {}
			__lowerCAmelCase     :		Any		     = {}
			with open(_SCREAMING_SNAKE_CASE			,						encoding='utf-8'					) as vocab_handle:
				__lowerCAmelCase     :		int		     = json.load(_SCREAMING_SNAKE_CASE					)
			__lowerCAmelCase     :		Any		     = {v: k for k, v in self.encoder.items()}
			with open(_SCREAMING_SNAKE_CASE			,						encoding='utf-8'					) as merges_handle:
				__lowerCAmelCase     :		Optional[int]		     = merges_handle.read().split('\n'					)[:-1]
			__lowerCAmelCase     :		Dict		     = [tuple(merge.split()[:2]					) for merge in merges]
			__lowerCAmelCase     :		Optional[Any]		     = dict(zip(_SCREAMING_SNAKE_CASE			,						range(len(_SCREAMING_SNAKE_CASE					)					)					)					)
			__lowerCAmelCase     :		Optional[int]		     = {}

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

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

		def 				__lowerCamelCase				( self			,						_SCREAMING_SNAKE_CASE			,						_SCREAMING_SNAKE_CASE					):
			if lang not in self.cache_moses_tokenizer:
				__lowerCAmelCase     :		str		     = self.sm.MosesTokenizer(lang=_SCREAMING_SNAKE_CASE					)
				__lowerCAmelCase     :		Optional[int]		     = moses_tokenizer
			return self.cache_moses_tokenizer[lang].tokenize(
			    _SCREAMING_SNAKE_CASE			,						aggressive_dash_splits=_SCREAMING_SNAKE_CASE			,						return_str=_SCREAMING_SNAKE_CASE			,						escape=_SCREAMING_SNAKE_CASE					)

		def 				__lowerCamelCase				( self			,						_SCREAMING_SNAKE_CASE			,						_SCREAMING_SNAKE_CASE					):
			if lang not in self.cache_moses_detokenizer:
				__lowerCAmelCase     :		Any		     = self.sm.MosesDetokenizer(lang=_SCREAMING_SNAKE_CASE					)
				__lowerCAmelCase     :		Any		     = moses_detokenizer
			return self.cache_moses_detokenizer[lang].detokenize(_SCREAMING_SNAKE_CASE					)

		def 				__lowerCamelCase				( self			,						_SCREAMING_SNAKE_CASE					):
			__lowerCAmelCase     :		List[Any]		     = tuple(token[:-1]					) + (token[-1] + '</w>',)
			if token in self.cache:
				return self.cache[token]
			__lowerCAmelCase     :		Union[str, Any]		     = get_pairs(_SCREAMING_SNAKE_CASE					)

			if not pairs:
				return token + "</w>"

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

					if word[i] == first and i < len(_SCREAMING_SNAKE_CASE					) - 1 and word[i + 1] == second:
						new_word.append(first + second					)
						i += 2
					else:
						new_word.append(word[i]					)
						i += 1
				__lowerCAmelCase     :		Optional[Any]		     = tuple(_SCREAMING_SNAKE_CASE					)
				__lowerCAmelCase     :		Optional[Any]		     = new_word
				if len(_SCREAMING_SNAKE_CASE					) == 1:
					break
				else:
					__lowerCAmelCase     :		Optional[Any]		     = get_pairs(_SCREAMING_SNAKE_CASE					)
			__lowerCAmelCase     :		Optional[int]		     = ' '.join(_SCREAMING_SNAKE_CASE					)
			if word == "\n  </w>":
				__lowerCAmelCase     :		Dict		     = '\n</w>'
			__lowerCAmelCase     :		Optional[int]		     = word
			return word

		def 				__lowerCamelCase				( self			,						_SCREAMING_SNAKE_CASE			,						_SCREAMING_SNAKE_CASE=False					):
			if bypass_tokenizer:
				__lowerCAmelCase     :		Any		     = text.split()
			else:
				__lowerCAmelCase     :		Union[str, Any]		     = self.moses_tokenize(_SCREAMING_SNAKE_CASE			,						self.lang					)

			__lowerCAmelCase     :		List[str]		     = []
			for token in text:
				if token:
					split_tokens.extend(list(self.bpe(_SCREAMING_SNAKE_CASE					).split(' '					)					)					)

			return split_tokens

		def 				__lowerCamelCase				( self			,						_SCREAMING_SNAKE_CASE					):
			return self.encoder.get(_SCREAMING_SNAKE_CASE			,						self.encoder.get(self.unk_token					)					)

		def 				__lowerCamelCase				( self			,						_SCREAMING_SNAKE_CASE					):
			return self.decoder.get(_SCREAMING_SNAKE_CASE			,						self.unk_token					)

		def 				__lowerCamelCase				( self			,						_SCREAMING_SNAKE_CASE					):
			__lowerCAmelCase     :		List[str]		     = [t.replace(' '			,						''					).replace('</w>'			,						' '					) for t in tokens]
			__lowerCAmelCase     :		List[Any]		     = ''.join(_SCREAMING_SNAKE_CASE					).split()
			# detokenize
			__lowerCAmelCase     :		int		     = self.moses_detokenize(_SCREAMING_SNAKE_CASE			,						self.lang					)
			return text

		def 				__lowerCamelCase				( self			,						_SCREAMING_SNAKE_CASE			,						_SCREAMING_SNAKE_CASE = None					):
			if token_ids_a is None:
				return [self.sep_token_id] + token_ids_a
			__lowerCAmelCase     :		Dict		     = [self.sep_token_id]
			return sep + token_ids_a + sep + token_ids_a

		def 				__lowerCamelCase				( self			,						_SCREAMING_SNAKE_CASE			,						_SCREAMING_SNAKE_CASE = None			,						_SCREAMING_SNAKE_CASE = False					):
			if already_has_special_tokens:
				return super().get_special_tokens_mask(
				    token_ids_a=_SCREAMING_SNAKE_CASE			,						token_ids_a=_SCREAMING_SNAKE_CASE			,						already_has_special_tokens=_SCREAMING_SNAKE_CASE					)
			# no bos used in fairseq
			if token_ids_a is not None:
				return [1] + ([0] * len(_SCREAMING_SNAKE_CASE					)) + [1] + ([0] * len(_SCREAMING_SNAKE_CASE					))
			return [1] + ([0] * len(_SCREAMING_SNAKE_CASE					))

		def 				__lowerCamelCase				( self			,						_SCREAMING_SNAKE_CASE			,						_SCREAMING_SNAKE_CASE = None					):
			__lowerCAmelCase     :		int		     = [self.sep_token_id]

			# no bos used in fairseq
			if token_ids_a is None:
				return len(token_ids_a + sep					) * [0]
			return len(token_ids_a + sep					) * [0] + len(token_ids_a + sep					) * [1]

		def 				__lowerCamelCase				( self			,						_SCREAMING_SNAKE_CASE			,						_SCREAMING_SNAKE_CASE = None					):
			if not os.path.isdir(_SCREAMING_SNAKE_CASE					):
				logger.error(f"Vocabulary path ({save_directory}) should be a directory"					)
				return
			__lowerCAmelCase     :		List[Any]		     = os.path.join(
			    _SCREAMING_SNAKE_CASE			,						(filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['vocab_file']					)
			__lowerCAmelCase     :		List[str]		     = os.path.join(
			    _SCREAMING_SNAKE_CASE			,						(filename_prefix + '-' if filename_prefix else '') + VOCAB_FILES_NAMES['merges_file']					)

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

			__lowerCAmelCase     :		str		     = 0
			with open(_SCREAMING_SNAKE_CASE			,						'w'			,						encoding='utf-8'					) as writer:
				for bpe_tokens, token_index in sorted(self.bpe_ranks.items()			,						key=lambda _SCREAMING_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!'					)
						__lowerCAmelCase     :		List[Any]		     = token_index
					writer.write(' '.join(_SCREAMING_SNAKE_CASE					) + '\n'					)
					index += 1

			return vocab_file, merge_file

		def __getstate__( self					):
			__lowerCAmelCase     :		Any		     = self.__dict__.copy()
			__lowerCAmelCase     :		List[str]		     = None
			return state







		def __setstate__( self			,						_SCREAMING_SNAKE_CASE					):
			__lowerCAmelCase     :		List[str]		     = d

			try:
				import sacremoses
			except ImportError:
				raise ImportError(
				    'You need to install sacremoses to use XLMTokenizer. '
				    'See https://pypi.org/project/sacremoses/ for installation.'					)

			__lowerCAmelCase     :		int		     = sacremoses