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A parser for Japanese number (Kanji, arabic) in the natural language.

The modulejapanese_numbers finds any numbers in the natural language, and converts to arabic numerals.The followings are example patterns what can be parsed.

• 二千万百一円
• 5百万
• 一を聞いて十を知る
• 五〇六号室

pip install japanese-numbers-python

Functionto_arabic andto_arabic_numbers are almost stable.

to_arabic returns An array of[japanese_numbers.result.ParsedResult].

importjapanese_numbersjapanese_numbers.to_arabic('銀河の向こう、六千三百二十一億千五百十一万二千百八十一光年彼方。')# => [<ParsedResult 632115112181 : "六千三百二十一億千五百十一万二千百八十一" index=7>]japanese_numbers.to_arabic('一を聞いて十を知る。')# => [<ParsedResult 1 : "一" index=0>, <ParsedResult 10 : "十" index=5>]

Then you can see a numeric value (and others) in the instance ofParsedResult like as follows:

result=japanese_numbers.to_arabic('一を聞いて十を知る。')result[0].number# => 1result[0].text# => '一'result[0].index# => 0 as position that number was foundresult[1].number# => 10result[1].text# => '十'result[1].index# => 5

to_arabic_numbers returns a tuple of numbers directly.

importjapanese_numbersjapanese_numbers.to_arabic_numbers('一を聞いて十を知る。')# => (1, 10)

Bothto_arabic_numbers,to_arabic getencode option to specify encode of input.

It'sutf8 by default, if you put non-unicode string into functions, it will be converted to unicode by using its encode first.

japanese_numbers.to_arabic_numbers('一を聞いて十を知る。')# utf8 by defaultjapanese_numbers.to_arabic('一を聞いて十を知る。',encode='eucjp')# set another charset

• support float/double types
• support negative types

Welcome!