If I understand it correctly, Jeffrey is asking about using Megaparsec, and this link is to the parsec combinator with the same name.

I am very surprised to find out that Megaparsec does not provide[*] the same combinator. Especially since they keep the same example!

[*] At least it is not listed here: http://hackage.haskell.org/package/megaparsec-4.4.0/docs/doc-index-All.html