Regex any ASCII character

Question

What is the regex to match xxx[any ASCII character here, spaces included]+xxx?

I am trying xxx[(w)(W)(s)]+xxx, but it doesn't seem to work.

Answer 1

If you really mean any and ASCII (not e.g. all Unicode characters):

xxx[x00-x7F]+xxx

JavaScript example:

var re = /xxx[x00-x7F]+xxx/;

re.test('xxxabcxxx')
// true

re.test('xxx???xxx')
// false