slog-kvfilter - Key values and Regex based filter Drain for slog-rs

For more information, help, to report issues etc. see slog-rs.

Documentation can be found on slog-kvfilter type.

lib.rs:

Filter records by matching some of their keys against a sets of values while allowing for records of level high enough to pass. It also can apply a negative filter after the positive filter to allow sophisticated 'hole-punching' into a matching category. Ultimately, the resulting message (without keys and values) can be constrained by both presence of a regex or its absence.