Struct PredicateRefAtom 

pub struct PredicateRefAtom<P> { /* private fields */ }

Tool that matches characters which satisfies the provided ref predicate.

See also PredicateAtom.

use minparser::prelude::*;
let lt = MatchHelper::from("aB1৬");
lt.match_atom(PredicateRefAtom::new(char::is_ascii_lowercase)).unwrap()
.match_atom(PredicateRefAtom::new(char::is_ascii_uppercase)).unwrap()
.match_atom(PredicateRefAtom::new(char::is_ascii_digit)).unwrap()
.match_atom(PredicateAtom::new(char::is_numeric)).unwrap();

Implementations

impl<P: Fn(&char) -> bool> PredicateRefAtom<P>

pub const fn new(predicate: P) -> Self

Create a new PredicateRefAtom from a predicate.

pub const fn new_zero_or_more(predicate: P) -> RepeatAnyAtom<Self, TrueAtom>

Creates an atom that matches zero or more occurrences of characters that satisfy the specified predicate.

pub const fn new_one_or_more(predicate: P) -> RepeatAtom<Self, TrueAtom>

Creates an atom that matches one or more occurrences of characters that satisfy the specified predicate.

pub fn parse_char(&self, st: &str) -> Option<(char, usize)>

Tests if the first character satisfy the predicate, and in the affirmative case the matched character and its length are returned.

Trait Implementations

impl<P: Fn(&char) -> bool> Atom for PredicateRefAtom<P>

fn parse(&self, st: &str) -> Option<Match>

The main parsing algorithm.

fn as_dyn(&self) -> &dyn Atom

where Self: Sized,

Coerce to dyn trait

impl<P: Clone> Clone for PredicateRefAtom<P>

fn clone(&self) -> PredicateRefAtom<P>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<P: Debug> Debug for PredicateRefAtom<P>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<P: Copy> Copy for PredicateRefAtom<P>