Parsec is an industrial-strength, monadic parser combinator library for Haskell.
Uu-parsinglib is a Haskell combinator parsing library with `Applicative` interface.
It seems that the idea of uu-parsinglib it to be more declarative than parsec so you just have pure
An UU parser recognizing just the empty string input?
Looking briefly at the list-like combinators for uu-parsinglib i m more familiar with parsec i think you can solve this by folding over the result of the psome combinator
Parsing an expression grammar having function application with parser combinators (left-recursion)