neologdn

|travis| |pyversion| |version| |license|

neologdn is a Japanese text normalizer for mecab-neologd <https://github.com/neologd/mecab-ipadic-neologd>_.

The normalization is based on the neologd's rules: https://github.com/neologd/mecab-ipadic-neologd/wiki/Regexp.ja

Contributions are welcome!

NOTE: Installing this module requires C++11 compiler.

Installation

::

$ pip install neologdn

Usage

.. code:: python

import neologdn
neologdn.normalize("ﾊﾝｶｸｶﾅ")
# => 'ハンカクカナ'
neologdn.normalize("全角記号！？＠＃")
# => '全角記号!?@#'
neologdn.normalize("全角記号例外「・」")
# => '全角記号例外「・」'
neologdn.normalize("長音短縮ウェーーーーイ")
# => '長音短縮ウェーイ'
neologdn.normalize("チルダ削除ウェ~∼∾〜〰～イ")
# => 'チルダ削除ウェイ'
neologdn.normalize("いろんなハイフン˗֊‐‑‒–⁃⁻₋−")
# => 'いろんなハイフン-'
neologdn.normalize("　　　ＰＲＭＬ　　副　読　本　　　")
# => 'PRML副読本'
neologdn.normalize(" Natural Language Processing ")
# => 'Natural Language Processing'
neologdn.normalize("かわいいいいいいいいい", repeat=6)
# => 'かわいいいいいい'
neologdn.normalize("無駄無駄無駄無駄ァ", repeat=1)
# => '無駄ァ'
neologdn.normalize("1995〜2001年", tilde="normalize")
# => '1995~2001年'
neologdn.normalize("1995~2001年", tilde="normalize_zenkaku")
# => '1995〜2001年'
neologdn.normalize("1995〜2001年", tilde="ignore")  # Don't convert tilde
# => '1995〜2001年'
neologdn.normalize("1995〜2001年", tilde="remove")
# => '19952001年'
neologdn.normalize("1995〜2001年")  # Default parameter
# => '19952001年'

Benchmark

.. code:: python

# Sample code from
# https://github.com/neologd/mecab-ipadic-neologd/wiki/Regexp.ja#python-written-by-hideaki-t--overlast
import normalize_neologd

%timeit normalize(normalize_neologd.normalize_neologd)
# => 1 loop, best of 3: 18.3 s per loop


import neologdn
%timeit normalize(neologdn.normalize)
# => 1 loop, best of 3: 9.05 s per loop

neologdn is about x2 faster than sample code.

details are described as the below notebook: https://github.com/ikegami-yukino/neologdn/blob/master/benchmark/benchmark.ipynb

License

Apache Software License.

Contribution

Contributions are welcome! See: https://github.com/ikegami-yukino/neologdn/blob/master/.github/CONTRIBUTING.md

.. |travis| image:: https://travis-ci.org/ikegami-yukino/neologdn.svg?branch=master :target: https://travis-ci.org/ikegami-yukino/neologdn :alt: travis-ci.org

.. |version| image:: https://img.shields.io/pypi/v/neologdn.svg :target: http://pypi.python.org/pypi/neologdn/ :alt: latest version

.. |pyversion| image:: https://img.shields.io/pypi/pyversions/neologdn.svg

.. |license| image:: https://img.shields.io/pypi/l/neologdn.svg :target: http://pypi.python.org/pypi/neologdn/ :alt: license