Regular expression types

[wallymathieu]

Write about how this lib relates to generalized regex.

[wallymathieu]

https://github.com/cgrand/seqexp and https://www.metosin.fi/blog/malli-regex-schemas/

[wallymathieu]

https://en.wikipedia.org/wiki/Brzozowski_derivative

[wallymathieu]

Seems like another take on this is to have a combinator library that is generic enough to be able to express matches over lists and other data structures. This approach can be found in https://groups.csail.mit.edu/mac/users/gjs/6946/refman.txt
https://github.com/sicmutils/sicmutils

As mentioned in
https://github.com/pangloss/pattern