Changes

You can use IF variables inside other IF variables to create complex logic but the internal IF: must be processed before the external IF

There are special versions of each IF constructed with ^ and ~ separators like [IF=^this^this^same~different]

The special versions are processed first so should be used as the internal IF so it's result can be processed by the outer if.

The special versions can also be used if you expect : or | characters within your data.