An Iterator-based Parser Combinator Library for Rust.
Included batteries:
* Parser trait
* Implementation for &str
* Implementation for char
* Implementation for <T, Iter: Iterator + Clone> Fn(Iter) -> Option<(Iter, T)>
* () to ensure that there is nothing left to parse
* Many for repeated occurrences
* Maybe for optionals (e.g. ' '.maybe() to allow, but not require, a space)
* NaturalNumber for whole numbers between 0 and u128::max_value()
* Or for choosing between two Parsers
* Then for chaining multiple Parsers together
* Transform for transforming the output of a Parser into another value.
("true".or("True"))
.or("false".or("False"))
.transform(|x|match x {
Either::A(_) => true,
Either::B(_) => false,
})
.parse_str("false!")? == ("!", false)