# Some code here has been modified from:
# https://github.com/bigscience-workshop/data-preparation
# --------------------------------------------------------
from ..base_op import OPERATORS, Mapper
[docs]@OPERATORS.register_module('punctuation_normalization_mapper')
class PunctuationNormalizationMapper(Mapper):
"""Mapper to normalize unicode punctuations to English punctuations in text
samples."""
_batched_op = True
[docs] def __init__(self, *args, **kwargs):
"""
Initialization method.
:param args: extra args
:param kwargs: extra args
"""
super().__init__(*args, **kwargs)
self.punctuation_unicode = {
',': ',',
'。': '.',
'、': ',',
'„': '"',
'”': '"',
'“': '"',
'«': '"',
'»': '"',
'1': '"',
'」': '"',
'「': '"',
'《': '"',
'》': '"',
'´': "'",
'∶': ':',
':': ':',
'?': '?',
'!': '!',
'(': '(',
')': ')',
';': ';',
'–': '-',
'—': ' - ',
'.': '. ',
'~': '~',
'’': "'",
'…': '...',
'━': '-',
'〈': '<',
'〉': '>',
'【': '[',
'】': ']',
'%': '%',
'►': '-',
}
[docs] def process_batched(self, samples):
samples[self.text_key] = [
''.join([self.punctuation_unicode.get(c, c) for c in text])
for text in samples[self.text_key]
]
return samples