Alpha Numeric with International characters with space

This matches any letter, number, or space in most languages.

1. [...] -> Match with conditions
2. [a|b] -> Match 'a' OR 'b'
3. \p{L} -> Match any letter in any language
4. \p{N} -> Match any number in any language
5. \s -> Match a space
6. /g -> Don't stop after first match
7. /u -> Support unicode pattern matching