CODEWITHSUNDEEP
javascriptregex
Manu
Manu

Reputation: 1085

Regex that allows all international characters but no symbols

I already wrote the following Regex that allows all international characters (Latin, Asian, ...)

 'Düsseldorf, Köln, Москва, 北京市, إسرائيل !@#$'.match(/[\p{L}-]+/ug)

But I would like to make it not allowing all special characters like !?})%....

Upvotes: 2

Views: 1849

Answers (3)

Emilio Sanchez
Emilio Sanchez

Reputation: 33

There's a book called "Javascript, The Good Parts" that provides some good examples on this, in short you can do something like:

/^[a-zA-Z0-9 \u00C0-\u1FFF\u2800-\uFFFD]+$/

Upvotes: 1

Wolfgang
Wolfgang

Reputation: 896

Sadly, javascript regular expressions (compared to other programming languages) still have a poor support for UTF-8/UTF-16 characters, even if it is a planned feature.

Currently, there is no other option (I know) than to add ranges, which should look like:

new RegExp(/^[ \-.a-zšđčćžÀ-ÖØ-öø-ÿ]+$/i).test('St. Petersburg')

From your examples, it looks like you are looking for full UTF-16 support, so you will have to add some ranges yourself. You can use https://www.fileformat.info/info/charset/UTF-16/list.htm as a reference. It includes a description to identify which chars are letters and which not.

Upvotes: 1

Ryszard Czech
Ryszard Czech

Reputation: 18611

Matching string containing only letters, numbers, dashes, dots, commas and whitespace:

console.log(
  /^[\p{L},.0-9\s-]+$/u.test('Düsseldorf, Köln, Москва, 北京市, إسرائيل !@#$')
)
console.log(
  /^[\p{L},.0-9\s-]+$/u.test('Düsseldorf, Köln, Москва, 北京市, إسرائيل')
)

Results: false and true.

EXPLANATION

-------------------------------------------------------------------------------
  ^                        the beginning of the string
--------------------------------------------------------------------------------
  [\p{L},.0-9\s-]+         any character of: letter, ',', '.',
                           '0' to '9', whitespace (\n, \r, \t, \f,
                           and " "), '-' (1 or more times (matching
                           the most amount possible))
--------------------------------------------------------------------------------
  $                        before an optional \n, and the end of the
                           string

Upvotes: 9

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