Regex to validate string having only characters (not special characters), blank spaces and numbers
There are a couple ways of doing this. If you only want to allow ASCII word characters (no accented characters like Ê or letters from other alphabets like Ӕ or ל), use this:
/^[a-zA-Z\d\s]*$/If you want to allow only numbers and letters from other languages for Ruby 1.8.7, use this:
/^(?:[^\W_]|\s)*$/uIf you want to allow only numbers and letters from other languages for Ruby 1.9.x, use this:
^[\p{Word}\w\s-]*$Also, if you are planning to use 1.9.x regex with unicode support in Ruby on Rails, add this line at the beginning of your .rb file:
# coding: utf-8
You're looking for:
[a-zA-Z0-9\s]+
The + says one or more so it'll not match empty string. If you need to match them as well, use * in place of +.
In addition to what have been said, assign any of the regular expresion to your regex variable in your control this, for instance
regex = ^[a-zA-Z\d\s]*$