g1smd - 8:48 pm on Jan 14, 2013 (gmt 0)

What is the \.* bit MEANT to match?

It actually matches <nothing> or . or .. or ...

When it matches NOTHING, then any digits that follow after will match.

1\.*0 matches 1.0 and 1....0 and 10

1\.* matches the same stuff with ANYTHING in place of the 0.

The * is the problem. Delete it.

Additionally, the period before [1-6] is another problem as it matches ANYTHING once.