


from __future__ import annotations

import math
from collections import Counter
from string import ascii_lowercase

def    lowercase_	(	_A    :					str		):

      """simple docstring"""




      lowerCamelCase__	:       str					=						analyze_text(__UpperCamelCase		)
      lowerCamelCase__	:       Any					=						list(" " + ascii_lowercase		)
      # what is our total sum of probabilities.
      lowerCamelCase__	:       str					=						sum(single_char_strings.values()		)

      # one length string
      lowerCamelCase__	:       Tuple					=						0
      # for each alpha we go in our dict and if it is in it we calculate entropy
      for ch in my_alphas:
            if ch in single_char_strings:
                  lowerCamelCase__	:       str					=						single_char_strings[ch]
                  lowerCamelCase__	:       List[Any]					=						my_str / all_sum
                  my_fir_sum += prob * math.loga(__UpperCamelCase		)  # entropy formula.

    # print entropy
      print(F"{round(-1 * my_fir_sum		):.1f}"		)

      # two len string
      lowerCamelCase__	:       str					=						sum(two_char_strings.values()		)
      lowerCamelCase__	:       int					=						0
      # for each alpha (two in size) calculate entropy.
      for cha in my_alphas:
            for cha in my_alphas:
                  lowerCamelCase__	:       str					=						cha + cha
                  if sequence in two_char_strings:
                        lowerCamelCase__	:       Any					=						two_char_strings[sequence]
                        lowerCamelCase__	:       Optional[int]					=						int(__UpperCamelCase		) / all_sum
                        my_sec_sum += prob * math.loga(__UpperCamelCase		)

    # print second entropy
      print(F"{round(-1 * my_sec_sum		):.1f}"		)

      # print the difference between them
      print(F"{round((-1 * my_sec_sum) - (-1 * my_fir_sum)		):.1f}"		)

def    lowercase_	(	_A    :					str		):

      """simple docstring"""




      lowerCamelCase__	:       str					=						Counter()  # type: ignore
      lowerCamelCase__	:       int					=						Counter()  # type: ignore
      single_char_strings[text[-1]] += 1

      # first case when we have space at start.
      two_char_strings[" " + text[0]] += 1
      for i in range(0					,      len(__UpperCamelCase		) - 1		):
            single_char_strings[text[i]] += 1
            two_char_strings[text[i : i + 2]] += 1
      return single_char_strings, two_char_strings

def    lowercase_	(	):

      """simple docstring"""




      import doctest

      doctest.testmod()
      # text = (
      #     "Had repulsive dashwoods suspicion sincerity but advantage now him. Remark "
      #     "easily garret nor nay. Civil those mrs enjoy shy fat merry. You greatest "
      #     "jointure saw horrible. He private he on be imagine suppose. Fertile "
      #     "beloved evident through no service elderly is. Blind there if every no so "
      #     "at. Own neglected you preferred way sincerity delivered his attempted. To "
      #     "of message cottage windows do besides against uncivil.  Delightful "
      #     "unreserved impossible few estimating men favourable see entreaties. She "
      #     "propriety immediate was improving. He or entrance humoured likewise "
      #     "moderate. Much nor game son say feel. Fat make met can must form into "
      #     "gate. Me we offending prevailed discovery. "
      # )

      # calculate_prob(text)


if __name__ == "__main__":
    main()






import os
import time
from dataclasses import dataclass, field
from enum import Enum
from typing import Dict, List, Optional, Union

import torch
from filelock import FileLock
from torch.utils.data import Dataset

from ...models.auto.modeling_auto import MODEL_FOR_QUESTION_ANSWERING_MAPPING
from ...tokenization_utils import PreTrainedTokenizer
from ...utils import logging
from ..processors.squad import SquadFeatures, SquadVaProcessor, SquadVaProcessor, squad_convert_examples_to_features


A   :					Union[str, Any]	=      logging.get_logger(__name__)

A   :					Union[str, Any]	=      list(MODEL_FOR_QUESTION_ANSWERING_MAPPING.keys())
A   :					Optional[Any]	=      tuple(conf.model_type for conf in MODEL_CONFIG_CLASSES)







@dataclass
class     _lowercase				:


       """simple docstring"""




       A__      		=    field(
           default=lowercase__							,						metadata={"help": "Model type selected in the list: " + ", ".join(lowercase__)})
       A__      		=    field(
           default=lowercase__							,						metadata={"help": "The input data dir. Should contain the .json files for the SQuAD task."})
       A__      		=    field(
           default=1_28							,						metadata={
               "help": (
                   "The maximum total input sequence length after tokenization. Sequences longer "
                   "than this will be truncated, sequences shorter will be padded."
               )
           }							,						)
       A__      		=    field(
           default=1_28							,						metadata={"help": "When splitting up a long document into chunks, how much stride to take between chunks."}							,						)
       A__      		=    field(
           default=64							,						metadata={
               "help": (
                   "The maximum number of tokens for the question. Questions longer than this will "
                   "be truncated to this length."
               )
           }							,						)
       A__      		=    field(
           default=30							,						metadata={
               "help": (
                   "The maximum length of an answer that can be generated. This is needed because the start "
                   "and end predictions are not conditioned on one another."
               )
           }							,						)
       A__      		=    field(
           default=lowercase__							,						metadata={"help": "Overwrite the cached training and evaluation sets"})
       A__      		=    field(
           default=lowercase__							,						metadata={"help": "If true, the SQuAD examples contain some that do not have an answer."})
       A__      		=    field(
           default=0.0							,						metadata={"help": "If null_score - best_non_null is greater than the threshold predict null."})
       A__      		=    field(
           default=20							,						metadata={"help": "If null_score - best_non_null is greater than the threshold predict null."})
       A__      		=    field(
           default=0							,						metadata={
               "help": (
                   "language id of input for language-specific xlm models (see"
                   " tokenization_xlm.PRETRAINED_INIT_CONFIGURATION)"
               )
           }							,						)
       A__      		=    field(default=1							,						metadata={"help": "multiple threads for converting example to features"})







class     _lowercase				(							lowercase__):


       """simple docstring"""




       A__      		=    "train"
       A__      		=    "dev"







class     _lowercase				(							lowercase__):


       """simple docstring"""




       A__      		=    42
       A__      		=    42
       A__      		=    42
       A__      		=    42





       def __init__(     self							:    Optional[int]      ,   __lowerCamelCase							:    SquadDataTrainingArguments      ,   __lowerCamelCase							:    PreTrainedTokenizer      ,   __lowerCamelCase							:    Optional[int] = None      ,   __lowerCamelCase							:    Union[str, Split] = Split.train      ,   __lowerCamelCase							:    Optional[bool] = False      ,   __lowerCamelCase							:    Optional[str] = None      ,   __lowerCamelCase							:    Optional[str] = "pt"      ,   ):


             '''simple docstring'''



             lowerCamelCase__	:       List[str]					=						args
             lowerCamelCase__	:       Tuple					=						is_language_sensitive
             lowerCamelCase__	:       int					=						SquadVaProcessor() if args.version_2_with_negative else SquadVaProcessor()
             if isinstance(__lowerCamelCase      ,   __lowerCamelCase ):
                   try:
                         lowerCamelCase__	:       List[str]					=						Split[mode]
                   except KeyError:
                         raise KeyError("mode is not a valid split name" )
             lowerCamelCase__	:       str					=						mode
             # Load data features from cache or dataset file
             lowerCamelCase__	:       Any					=						"v2" if args.version_2_with_negative else "v1"
             lowerCamelCase__	:       List[str]					=						os.path.join(
                 cache_dir if cache_dir is not None else args.data_dir      ,   f"cached_{mode.value}_{tokenizer.__class__.__name__}_{args.max_seq_length}_{version_tag}"      ,   )

             # Make sure only the first process in distributed training processes the dataset,
             # and the others will use the cache.
             lowerCamelCase__	:       List[str]					=						cached_features_file + ".lock"
             with FileLock(__lowerCamelCase ):
                   if os.path.exists(__lowerCamelCase ) and not args.overwrite_cache:
                         lowerCamelCase__	:       str					=						time.time()
                         lowerCamelCase__	:       Tuple					=						torch.load(__lowerCamelCase )

                         # Legacy cache files have only features, while new cache files
                         # will have dataset and examples also.
                         lowerCamelCase__	:       Optional[Any]					=						self.old_features["features"]
                         lowerCamelCase__	:       Optional[int]					=						self.old_features.get("dataset"      ,   __lowerCamelCase )
                         lowerCamelCase__	:       Optional[Any]					=						self.old_features.get("examples"      ,   __lowerCamelCase )
                         logger.info(
                             f"Loading features from cached file {cached_features_file} [took %.3f s]"      ,   time.time() - start )

                         if self.dataset is None or self.examples is None:
                               logger.warning(
                                   f"Deleting cached file {cached_features_file} will allow dataset and examples to be cached in"
                                   " future run" )
                   else:
                         if mode == Split.dev:
                               lowerCamelCase__	:       List[Any]					=						self.processor.get_dev_examples(args.data_dir )
                         else:
                               lowerCamelCase__	:       str					=						self.processor.get_train_examples(args.data_dir )

                         lowerCamelCase__					,     lowerCamelCase__	:       Tuple					=						squad_convert_examples_to_features(
                             examples=self.examples      ,   tokenizer=__lowerCamelCase      ,   max_seq_length=args.max_seq_length      ,   doc_stride=args.doc_stride      ,   max_query_length=args.max_query_length      ,   is_training=mode == Split.train      ,   threads=args.threads      ,   return_dataset=__lowerCamelCase      ,   )

                         lowerCamelCase__	:       int					=						time.time()
                         torch.save(
                             {"features": self.features, "dataset": self.dataset, "examples": self.examples}      ,   __lowerCamelCase      ,   )
                         # ^ This seems to take a lot of time so I want to investigate why and how we can improve.
                         logger.info(
                             f"Saving features into cached file {cached_features_file} [took {time.time() - start:.3f} s]" )





       def __len__(     self							:    List[Any] ):


             '''simple docstring'''



             return len(self.features )





       def __getitem__(     self							:    List[str]      ,   __lowerCamelCase							:    Union[str, Any] ):


             '''simple docstring'''



             lowerCamelCase__	:       Tuple					=						self.features[i]

             lowerCamelCase__	:       Tuple					=						torch.tensor(feature.input_ids      ,   dtype=torch.long )
             lowerCamelCase__	:       List[Any]					=						torch.tensor(feature.attention_mask      ,   dtype=torch.long )
             lowerCamelCase__	:       Tuple					=						torch.tensor(feature.token_type_ids      ,   dtype=torch.long )
             lowerCamelCase__	:       Any					=						torch.tensor(feature.cls_index      ,   dtype=torch.long )
             lowerCamelCase__	:       Any					=						torch.tensor(feature.p_mask      ,   dtype=torch.float )
             lowerCamelCase__	:       Union[str, Any]					=						torch.tensor(feature.is_impossible      ,   dtype=torch.float )

             lowerCamelCase__	:       List[str]					=						{
                 "input_ids": input_ids,
                 "attention_mask": attention_mask,
                 "token_type_ids": token_type_ids,
             }

             if self.args.model_type in ["xlm", "roberta", "distilbert", "camembert"]:
                   del inputs["token_type_ids"]

             if self.args.model_type in ["xlnet", "xlm"]:
                   inputs.update({"cls_index": cls_index, "p_mask": p_mask} )
                   if self.args.version_2_with_negative:
                         inputs.update({"is_impossible": is_impossible} )
                   if self.is_language_sensitive:
                         inputs.update({"langs": (torch.ones(input_ids.shape      ,   dtype=torch.intaa ) * self.args.lang_id)} )

             if self.mode == Split.train:
                   lowerCamelCase__	:       List[Any]					=						torch.tensor(feature.start_position      ,   dtype=torch.long )
                   lowerCamelCase__	:       List[Any]					=						torch.tensor(feature.end_position      ,   dtype=torch.long )
                   inputs.update({"start_positions": start_positions, "end_positions": end_positions} )

             return inputs


