The flip-flop operator is very useful to extract continuous subsets, typically, sections of (multi-line) strings, where the dev defines the delimiters - think o

The flip-flop operator is very useful to extract continuous subsets, typically, sections of (multi-line) strings, where the dev defines the delimiters - think of the `=begin` and `=end` keywords. I've personally never used for anything else than strings, but when I do, it's very useful.