Per-sink custom formatters

[QuillUsr1]

Just to start with - I think its great that we now have per-sink pattern formatters in v9.0.0 https://github.com/odygrd/quill/blob/master/examples/sink_formatter_override.cpp !

But I was wondering if it would be possible to go one step further, and integrate mutli-formatting with this feature. https://github.com/odygrd/quill/blob/master/examples/user_defined_types_multi_format.cpp.

The idea would be that logging through sink1 could use the {} formatter, and logging through sink2 could always use the {:p} formatter for example.

[odygrd]

Hey, i am not sure how easy would be to do that.

We just call format and that code runs internally by libfmt. I am not sure how easy it would be for the Sink to select formatter

One way i can think is the Sink could modify the format string before formatting, but then it would need to add the correct value inside ‘{}’ based on each type and it would need to have a mapping passed by the user for each type