Trait Parser 

pub trait Parser<I, O, E> {
    // Required method
    fn parse(&mut self, input: I) -> Result<(I, O), Err<E>>;

    // Provided methods
    fn map<G, O2>(self, g: G) -> Map<Self, G, O>
       where G: Fn(O) -> O2,
             Self: Sized { ... }
    fn flat_map<G, H, O2>(self, g: G) -> FlatMap<Self, G, O>
       where G: FnMut(O) -> H,
             H: Parser<I, O2, E>,
             Self: Sized { ... }
    fn and_then<G, O2>(self, g: G) -> AndThen<Self, G, O>
       where G: Parser<O, O2, E>,
             Self: Sized { ... }
    fn and<G, O2>(self, g: G) -> And<Self, G>
       where G: Parser<I, O2, E>,
             Self: Sized { ... }
    fn or<G>(self, g: G) -> Or<Self, G>
       where G: Parser<I, O, E>,
             Self: Sized { ... }
    fn into<O2, E2>(self) -> Into<Self, O, O2, E, E2>
       where O2: From<O>,
             E2: From<E>,
             Self: Sized { ... }
}

Available on crate feature crypto only.

All nom parsers implement this trait

Required Methods

fn parse(&mut self, input: I) -> Result<(I, O), Err<E>>

A parser takes in input type, and returns a Result containing either the remaining input and the output value, or an error

Provided Methods

fn map<G, O2>(self, g: G) -> Map<Self, G, O>

where G: Fn(O) -> O2, Self: Sized,

Maps a function over the result of a parser

fn flat_map<G, H, O2>(self, g: G) -> FlatMap<Self, G, O>

where G: FnMut(O) -> H, H: Parser<I, O2, E>, Self: Sized,

Creates a second parser from the output of the first one, then apply over the rest of the input

fn and_then<G, O2>(self, g: G) -> AndThen<Self, G, O>

where G: Parser<O, O2, E>, Self: Sized,

Applies a second parser over the output of the first one

fn and<G, O2>(self, g: G) -> And<Self, G>

where G: Parser<I, O2, E>, Self: Sized,

Applies a second parser after the first one, return their results as a tuple

fn or<G>(self, g: G) -> Or<Self, G>

where G: Parser<I, O, E>, Self: Sized,

Applies a second parser over the input if the first one failed

fn into<O2, E2>(self) -> Into<Self, O, O2, E, E2>

where O2: From<O>, E2: From<E>, Self: Sized,

automatically converts the parser’s output and error values to another type, as long as they implement the From trait

Trait Implementations

impl<'a, I, O, E> Parser<I, O, E> for Box<dyn Parser<I, O, E> + 'a>

Available on crate feature alloc only.

fn parse(&mut self, input: I) -> Result<(I, O), Err<E>>

A parser takes in input type, and returns a Result containing either the remaining input and the output value, or an error

fn map<G, O2>(self, g: G) -> Map<Self, G, O>

where G: Fn(O) -> O2, Self: Sized,

Maps a function over the result of a parser

fn flat_map<G, H, O2>(self, g: G) -> FlatMap<Self, G, O>

where G: FnMut(O) -> H, H: Parser<I, O2, E>, Self: Sized,

Creates a second parser from the output of the first one, then apply over the rest of the input

fn and_then<G, O2>(self, g: G) -> AndThen<Self, G, O>

where G: Parser<O, O2, E>, Self: Sized,

Applies a second parser over the output of the first one

fn and<G, O2>(self, g: G) -> And<Self, G>

where G: Parser<I, O2, E>, Self: Sized,

Applies a second parser after the first one, return their results as a tuple

fn or<G>(self, g: G) -> Or<Self, G>

where G: Parser<I, O, E>, Self: Sized,

Applies a second parser over the input if the first one failed

fn into<O2, E2>(self) -> Into<Self, O, O2, E, E2>

where O2: From<O>, E2: From<E>, Self: Sized,

automatically converts the parser’s output and error values to another type, as long as they implement the From trait

Implementors

impl<'a> Parser<&'a [u8], TbsCertificate<'a>, X509Error> for TbsCertificateParser

impl<'a> Parser<&'a [u8], X509Certificate<'a>, X509Error> for X509CertificateParser

impl<'a> Parser<&'a [u8], X509Extension<'a>, X509Error> for X509ExtensionParser

impl<'a, I, O1, O2, E1, E2, F> Parser<I, O2, E2> for Into<F, O1, O2, E1, E2>

where I: Clone, O2: From<O1>, E2: ParseError<I> + From<E1>, F: Parser<I, O1, E1>,

impl<'a, I, O1, O2, E, F, G> Parser<I, (O1, O2), E> for And<F, G>

where F: Parser<I, O1, E>, G: Parser<I, O2, E>,

impl<'a, I, O1, O2, E, F, G> Parser<I, O2, E> for AndThen<F, G, O1>

where F: Parser<I, O1, E>, G: Parser<O1, O2, E>,

impl<'a, I, O1, O2, E, F, G> Parser<I, O2, E> for Map<F, G, O1>

where F: Parser<I, O1, E>, G: Fn(O1) -> O2,

impl<'a, I, O1, O2, E, F, G, H> Parser<I, O2, E> for FlatMap<F, G, O1>

where F: Parser<I, O1, E>, G: Fn(O1) -> H, H: Parser<I, O2, E>,

impl<'a, I, O, E> Parser<I, O, E> for Box<dyn Parser<I, O, E> + 'a>

Available on crate feature alloc only.

impl<'a, I, O, E, F> Parser<I, O, E> for F

where F: FnMut(I) -> Result<(I, O), Err<E>> + 'a,

impl<'a, I, O, E, F, G> Parser<I, O, E> for Or<F, G>

where I: Clone, E: ParseError<I>, F: Parser<I, O, E>, G: Parser<I, O, E>,