I'm trying to use the kv processor with patterns. As mentioned in the documentation, the "field_split" can use a regex pattern to use for splitting key-value pairs, but I can't find examples.
I have a working PCRE regex here, tested from https://regex101.com/:
(?!=)([a-zA-Z0-9.:\/ ]*=[a-zA-Z0-9.:\/ _-]*)( |$)
But now how can I use it from the kv processor?
Thanks for your help!