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document what this file is for

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Rob Speer 2015-09-22 15:31:27 -04:00
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scripts/make_chinese_mapping.py
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"""
Generate a Python file, _chinese_mapping.py, that maps Traditional Chinese
characters to their Simplified Chinese equivalents.
This is meant to be a normalization of text, somewhat like case-folding -- not
an actual translator, a task for which this method would be unsuitable. We
store word frequencies using Simplified Chinese characters so that, in the large
number of cases where a Traditional Chinese word has an obvious Simplified Chinese
mapping, we can get a frequency for it that's the same in Simplified and Traditional
Chinese.
Generating this mapping requires the external Chinese conversion tool OpenCC.
"""
import unicodedata import unicodedata
import itertools import itertools
import os import os