regular expression

Need some help(
I have a string:

:01:Test1:1111:02:Test2:2222:03:Test3:3333

I need to separate it with reg expression like this:

:01:Test1:1111
:02:Test2:2222
:03:Test3:3333

I have an expression and it works great, if all parameters has values:

:.+?:.+?:[^:]+

But if I have a parameter with null value, like:

:01:Test1:1111:02:Test2::03:Test3:3333

I’ll get this result:

:01:Test1:1111
:02:Test2::03

But I need:

:01:Test1:1111
:02:Test2:
:03:Test3:3333

How should I change my regexp to fix this situation and get correct result for each situation?

>Solution :

The issue here is that + is one to unlimited times whereas you’re looking for zero to unlimited times, and greedy.

Try:

:.+?:.+?:[^:]*+