The find macro finds part of text separated by delimiters. This is a powerful macro to extract text snippets and can be used for many applications like footnotes, abbreviation lists, references (bibliography), partial transclusion and much more. See https://github.com/kookma/Refnotes as an example.

A full working version and demo can be find at https://kookma.github.io/find-macro/

Simply import the above macro_find.tid into your wiki. You can aldo drag and drop the macro/find tiddler from the https://kookma.github.io/find-macro/ into your wiki.