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ivanlemeshev/JapaneseRegex.js

Forked from ryanmcgrath/JapaneseRegex.js
Created April 26, 2016 09:03
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  1. @sym3tri sym3tri created this gist May 19, 2011.
    29 changes: 29 additions & 0 deletions JapaneseRegex.js
    View file
    Original file line number Diff line number Diff line change
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    // REFERENCE UNICODE TABLES:
    // http://www.rikai.com/library/kanjitables/kanji_codes.unicode.shtml
    // http://www.tamasoft.co.jp/en/general-info/unicode.html
    //
    // TEST EDITOR:
    // http://www.gethifi.com/tools/regex
    //
    // UNICODE RANGE : DESCRIPTION
    //
    // 3000-303F : punctuation
    // 3040-309F : hiragana
    // 30A0-30FF : katakana
    // FF00-FFEF : Full-width roman + half-width katakana
    // 4E00-9FAF : Common and uncommon kanji
    //
    // Non-Japanese punctuation/formatting characters commonly used in Japanese text
    // 2605-2606 : Stars
    // 2190-2195 : Arrows
    // u203B : Weird asterisk thing

    var regex = /[\u3000-\u303F]|[\u3040-\u309F]|[\u30A0-\u30FF]|[\uFF00-\uFFEF]|[\u4E00-\u9FAF]|[\u2605-\u2606]|[\u2190-\u2195]|\u203B/g;
    var input = "input string";
    if(regex.test(input)) {
    console.log("Japanese characters found")
    }
    else {
    console.log("No Japanese characters");
    }