Introduce _split_pattern to parse an "x:y:z" pattern
Introduce _split_pattern to parse an "x:y:z" pattern

This function takes a string like 'foo:bar[1:2]:baz[x:y]-quux' and
returns a list of patterns ['foo', 'bar[1:2]', 'baz[x:y]-quux'], i.e.
splits the string on colons that are not part of a range specification.

thaim/ansible,thaim/ansible