RainMeter multiline - RegExp

I'm trying since a copple days to read an entire files with rainmeter.

I'm working with WebParser and RegExp.

My result is something like this

Line1 Line2 Line3

If I make a RegExp like (?m).* I have only the first line, however, if I make something like (?m).*\n.*, I have the two lines...

Fantastic but something I juste have 1 lines and something I can have 5 lines. If I'm writing = (?m).*\n.*\n.*\n.*\n.* and I have for example just 3 lines, Rainmeter doesn't get my lines

Someone have a solution ?