JavaScript regex for validating for alphanumeric characters,all international characters (Japanese, Chinese, Russian etc)

Question

One of my project requirements is to validate a data field(text box from web page). I need to allow alpha numeric characters in all foreign languages (japanese,chinese,korean,russian,latin american characters etc). And avoid special characters.

I am using the expression /[^a-zA-Z0-9]/ (javascript, asp .net page)

Many blogs I have read and not able to correctly understand what exactly I have to do here. I can't add any addons or plugins and have to use the available functionality of regex.

How do regex engine recognize other language characters (esp. Unicode)?

possible duplicate of [Regular expression to match non-english characters?](http://stackoverflow.com/questions/150033/regular-expression-to-match-non-english-characters) — mplungjan, Apr 04 '12 at 08:00
Possible duplicate of [Regular expression to match non-English characters?](http://stackoverflow.com/questions/150033/regular-expression-to-match-non-english-characters) — halfer, Feb 15 '17 at 08:46

score 3 · Accepted Answer · edited May 23 '17 at 12:01

3

You will need to use Unicode regular expressions. Please check this previous SO thread in which various unicode matching mechanisms are discussed.

edited May 23 '17 at 12:01

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answered Apr 04 '12 at 07:59

npinti

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JavaScript regex for validating for alphanumeric characters,all international characters (Japanese, Chinese, Russian etc)

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