OR condition in Regex

Question

Let\'s say I have

1 ABC Street
1 A ABC Street

With \\d, it matches 1 (what I expect), with \\d

Answer 1

I think what you need might be simply:

\d( \w)?

Note that your regex would have worked too if it was written as \d \w|\d instead of \d|\d \w.

This is because in your case, once the regex matches the first option, \d, it ceases to search for a new match, so to speak.