Struct Alphanumeric

pub struct Alphanumeric { /* private fields */ }

Checks whether the given character is alphanumeric.

Trait Implementations

impl Predicate<char> for Alphanumeric

type Error = AlphanumericError

The associated error type which is used to represent checks.

fn check(value: &char) -> Result<(), Self::Error>

Checks if the value of type T satisfies the predicate.

fn expect(formatter: &mut Formatter<'_>) -> Result

Formats the expectation of the predicate.

fn expect_code(formatter: &mut Formatter<'_>) -> Result

Formats the expectation code of the predicate.

fn is_satisfied(value: &T) -> bool

Checks whether the given value satisfies the predicate.

fn expected() -> Expected<T, Self>

Returns the expectation of the predicate.

fn expected_code() -> ExpectedCode<T, Self>

Returns the expectation code of the predicate.