Source code for abydos.tokenizer._wordpunct

# Copyright 2018-2020 by Christopher C. Little.
# This file is part of Abydos.
# Abydos is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# Abydos is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with Abydos. If not, see <>.


Wordpunct tokenizer (analogous to NLTK's workpunct tokenizer)

from ._regexp import RegexpTokenizer

__all__ = ['WordpunctTokenizer']

[docs]class WordpunctTokenizer(RegexpTokenizer): """A wordpunct tokenizer. Examples -------- >>> WordpunctTokenizer().tokenize("Can't stop the feelin'!") WordpunctTokenizer({'Can': 1, "'": 1, 't': 1, 'stop': 1, 'the': 1, 'feelin': 1, "'!": 1}) .. versionadded:: 0.4.0 """ def __init__(self, scaler=None, flags=0): """Initialize tokenizer. Parameters ---------- scaler : None, str, or function A scaling function for the Counter: - None : no scaling - 'set' : All non-zero values are set to 1. - 'length' : Each token has weight equal to its length. - 'length-log' : Each token has weight equal to the log of its length + 1. - 'length-exp' : Each token has weight equal to e raised to its length. - a callable function : The function is applied to each value in the Counter. Some useful functions include math.exp, math.log1p, math.sqrt, and indexes into interesting integer sequences such as the Fibonacci sequence. .. versionadded:: 0.4.0 """ super(WordpunctTokenizer, self).__init__( scaler, regexp=r'\w+|[^\w\s]+', flags=flags )
if __name__ == '__main__': import doctest doctest.testmod(optionflags=doctest.NORMALIZE_WHITESPACE)