I have worked with Parsec library in Haskell before, and I really liked laconic usage, so I tried to implement some of the functionality of parser combinators in C++.
Here is a small example. Below is code in Haskell that allows you to parse sequence of letters or numbers with any number of spaces in between. spaces in between, or empty is written instead of the sequence. With Haskell Parsec it can be done in the following way:
many (spaces >> alphaNum) <|> string "empty"With the functionality I have implemented, the same thing can be written in C++ like this:
many(spaces() >> alphaNum()) | prefix_parser("empty")