How to match repeated patterns?

Question

I would like to match:

some.name.separated.by.dots

But I don\'t have any idea how.

I can match a single part like this

Answer 1

You can use ? to match 0 or 1 of the preceeding parts, * to match 0 to any amount of the preceeding parts, and + to match at least one of the preceeding parts.

So (\w\.)? will match w. and a blank, (\w\.)* will match r.2.5.3.1.s.r.g.s. and a blank, and (\w\.)+ will match any of the above but not a blank.

If you want to match something like your example, you'll need to do (\w+\.)+, which means 'match at least one non whitespace, then a period, and match at least one of these'.