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one_of

combine

Function one_of 

Source 
pub fn one_of<T, Input>(tokens: T) -> OneOf<T, Input>
where
    T: Clone + IntoIterator,
    Input: Stream,
    Input::Token: PartialEq<T::Item>,
Expand description

Extract one token and succeeds if it is part of tokens.

let result = many(one_of("abc".chars()))
    .parse("abd");
assert_eq!(result, Ok((String::from("ab"), "d")));