Validating UTF-8 names in JavaScript (Node.js) with XRegExp

Question

I'm trying to check if a given UTF-8 string consists of letters only.
I tried the solution I found here: Validating user's UTF-8 name in Javascript

Given string: Ciesiołkiewicz
is tested with var XRegExp = require('xregexp').XRegExp('^\\p{L}+$');

And it's not working because of "ł" letter
I tried XRegExp('^[\\p{Latin}\\p{Common}]+$');
but it's too much, it accepts polish letters but also characters like "$" etc

How can I validate it against letters only? I don't want to type them into regexp manually.

Are you sure you save the script with the utf8 encoding? – o_nix Dec 29 '12 at 11:29 — o_nix, Dec 29 '12 at 11:29
that's it, file was ANSI. Didn't think of that. – Xander Dec 29 '12 at 11:34 — Xander, Dec 29 '12 at 11:34

o_nix · Accepted Answer · 2012-12-29T11:35:49.697

0

var XRegExp = require('xregexp').XRegExp;
var re = new XRegExp('^\\p{L}+$');

console.log(re.test('Ciesiołkiewicz'));
console.log(re.test('1Ciesiołkiewicz2'));
console.log(re.test('привет'));
console.log(re.test('пр1вет'));

> true
> false
> true
> false

works perfectly.

edited Dec 29 '12 at 11:35

answered Dec 29 '12 at 11:25

o_nix

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My code wasn't wrong, I just didn't save my test's file as utf-8 – Xander Dec 29 '12 at 11:36

score -2 · Answer 2 · answered Dec 29 '12 at 11:01

-2

how about a character range like [a-Z]? thats what i usually use if im looking only for letters

answered Dec 29 '12 at 11:01

osirisgothra

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you should read [this article](http://www.regular-expressions.info/unicode.html) for example. – o_nix Dec 29 '12 at 11:26
Hey, im sorry! I misread! was under the impression that you wanted regular characters A-Z a-z, my mistake. – osirisgothra Dec 31 '12 at 11:55

Validating UTF-8 names in JavaScript (Node.js) with XRegExp

2 Answers2