I have added LTSV(see http://ltsv.org) support to fluent-plugin-s3.
Change point is as below:
Added LTSV support and its tests.
I was thinking about this pull request.
In the result, I decided to close this issue because implementing each format increases the maintenance cost.
So we should use plaintextformatter or similar mixin to support non-structured format.
OK. I agree it. It will be nicer.
Your added tests seems good.
So if we add ltsv to s3, then I will reuse your tests :)