




"""simple docstring"""







import json
import os
import unittest

from transformers import MgpstrTokenizer
from transformers.models.mgp_str.tokenization_mgp_str import VOCAB_FILES_NAMES
from transformers.testing_utils import require_tokenizers

from ...test_tokenization_common import TokenizerTesterMixin




@require_tokenizers
class       lowerCAmelCase__       (			lowerCAmelCase_  ,			unittest.TestCase    ):


				"""simple docstring"""





				__UpperCAmelCase :     int       =      MgpstrTokenizer
				__UpperCAmelCase :     List[str]       =      False
				__UpperCAmelCase :     str       =      {}
				__UpperCAmelCase :     List[Any]       =      False



				def       snake_case    (     self					:	Optional[Any]						):
						super().setUp()

						# fmt: off
						__lowercase				:		Dict												=				["[GO]", "[s]", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"]
						# fmt: on
						__lowercase				:		Tuple												=				dict(zip(_SCREAMING_SNAKE_CASE    ,   range(len(_SCREAMING_SNAKE_CASE						)						)						)						)

						__lowercase				:		str												=				os.path.join(self.tmpdirname    ,   VOCAB_FILES_NAMES["vocab_file"]						)
						with open(self.vocab_file    ,   "w"    ,   encoding="utf-8"						) as fp:
								fp.write(json.dumps(_SCREAMING_SNAKE_CASE						) + "\n"						)



				def       snake_case    (     self					:	List[str]    ,   **lowercase__					:	Any						):
						return MgpstrTokenizer.from_pretrained(self.tmpdirname    ,   **_SCREAMING_SNAKE_CASE						)



				def       snake_case    (     self					:	Union[str, Any]    ,   lowercase__					:	Optional[int]						):
						__lowercase				:		Optional[Any]												=				"tester"
						__lowercase				:		List[Any]												=				"tester"
						return input_text, output_text



				@unittest.skip("MGP-STR always lower cases letters."						)
				def       snake_case    (     self					:	Optional[Any]						):
						pass



				def       snake_case    (     self					:	Optional[Any]						):
						__lowercase				:		List[Any]												=				self.get_tokenizers(do_lower_case=_SCREAMING_SNAKE_CASE						)
						for tokenizer in tokenizers:
								with self.subTest(f'{tokenizer.__class__.__name__}'						):
										__lowercase				:		Optional[int]												=				"[SPECIAL_TOKEN]"

										tokenizer.add_special_tokens({"cls_token": special_token}						)
										__lowercase				:		Tuple												=				tokenizer.encode([special_token]    ,   add_special_tokens=_SCREAMING_SNAKE_CASE						)
										self.assertEqual(len(_SCREAMING_SNAKE_CASE						)    ,   1						)

										__lowercase				:		Optional[int]												=				tokenizer.decode(_SCREAMING_SNAKE_CASE    ,   skip_special_tokens=_SCREAMING_SNAKE_CASE						)
										self.assertTrue(special_token not in decoded						)



				def       snake_case    (     self					:	Optional[Any]						):
						__lowercase				:		List[str]												=				self.get_tokenizers()
						for tokenizer in tokenizers:
								with self.subTest(f'{tokenizer.__class__.__name__}'						):
										__lowercase						,__lowercase				:		int												=				self.get_input_output_texts(_SCREAMING_SNAKE_CASE						)

										__lowercase				:		Optional[int]												=				tokenizer.tokenize(_SCREAMING_SNAKE_CASE						)
										__lowercase				:		Any												=				tokenizer.convert_tokens_to_ids(_SCREAMING_SNAKE_CASE						)
										__lowercase				:		Tuple												=				tokenizer.encode(_SCREAMING_SNAKE_CASE    ,   add_special_tokens=_SCREAMING_SNAKE_CASE						)
										self.assertListEqual(_SCREAMING_SNAKE_CASE    ,   _SCREAMING_SNAKE_CASE						)

										__lowercase				:		List[str]												=				tokenizer.convert_ids_to_tokens(_SCREAMING_SNAKE_CASE						)
										self.assertNotEqual(len(_SCREAMING_SNAKE_CASE						)    ,   0						)
										__lowercase				:		Any												=				tokenizer.decode(_SCREAMING_SNAKE_CASE						)
										self.assertIsInstance(_SCREAMING_SNAKE_CASE    ,   _SCREAMING_SNAKE_CASE						)

										self.assertEqual(text_a.replace(" "    ,   ""						)    ,   _SCREAMING_SNAKE_CASE						)



				@unittest.skip("MGP-STR tokenizer only handles one sequence."						)
				def       snake_case    (     self					:	int						):
						pass



				@unittest.skip("inputs cannot be pretokenized in MgpstrTokenizer"						)
				def       snake_case    (     self					:	str						):
						pass






"""simple docstring"""







def 						snake_case__       (					_lowerCamelCase				)			->list:






		"""simple docstring"""


		__lowercase				:		Optional[int]												=				[0] * len(_lowerCamelCase				)

		for i in range(1,  len(_lowerCamelCase				)				):
				# use last results for better performance - dynamic programming
				__lowercase				:		Optional[Any]												=				prefix_result[i - 1]
				while j > 0 and input_string[i] != input_string[j]:
						__lowercase				:		List[str]												=				prefix_result[j - 1]

				if input_string[i] == input_string[j]:
						j += 1
				__lowercase				:		Any												=				j

		return prefix_result

def 						snake_case__       (					_lowerCamelCase				)			->int:






		"""simple docstring"""


		return max(prefix_function(_lowerCamelCase				)				)


if __name__ == "__main__":
						import doctest

						doctest.testmod()
