Regular Expression for Japanese characters

Question

I am doing internationalization in Struts. I want to write Javascript validation for Japanese and English users. I know regular expression for English but not for Japanese u

Answer 1

As long as you save your scripts in the same character set as your page (e.g. both HTML and JavaScript are UTF-8 or both HTML and JavaScript are Shift_JIS), you should be able to treat your regular expressions exactly the same as you would with English.

function isKansai(city) {
    var rxKansai = /(大阪|兵庫|京都|滋賀|奈良|和歌山|osaka|hyo{1,2}go|kyoto|shiga|nara|wakayama)/i;
    return rxKansai.test(city);
}
isKansai('東京'); // false
isKansai('大阪'); // true
isKansai('Tokyo'); // false
isKansai('Osaka') // true