Sometimes we have pre-defined snippets that are already formatted in a specific way, e.g. on one line, and shouldn't get adjusted by formatting.

To support this, add a couple of checkboxes to snippets:
[x] Exclude from line-break formatting
[x] Exclude from in-line character formatting

The first would cause formatting to ignore the snippet with regards to rules that insert line breaks; the second would cause formatting to ignore the snippet wit regards to non-breaking formatting (case, spacing, etc).

Common use-case; we have a subquery that gets used a lot to find the max value in a field, and if expanded properly adds a lot of noise to the overall query layout. E.g.:

[...]
where
A.RECVERS = (select max(AA.RECVERS) from MyTable AA where AA.ID = A.ID)