Trait Character

pub trait Character:
    Sealed
    + Copy
    + PartialEq {
    type Str: ?Sized + PartialEq;
    type Collection: Chain<Self> + FromIterator<Self> + AsRef<Self::Str> + 'static;

    // Required methods
    fn from_ascii(c: u8) -> Self;
    fn is_inline_whitespace(&self) -> bool;
    fn is_whitespace(&self) -> bool;
    fn digit_zero() -> Self;
    fn is_digit(&self, radix: u32) -> bool;
    fn to_char(&self) -> char;
}

A trait implemented by textual character types (currently, u8 and char).

Avoid implementing this trait yourself if you can: it’s very likely to be expanded in future versions!

Required Associated Types

type Str: ?Sized + PartialEq

The default unsized str-like type of a linear sequence of this character.

For char, this is str. For u8, this is [[u8]].

type Collection: Chain<Self> + FromIterator<Self> + AsRef<Self::Str> + 'static

The default type that this character collects into.

For char, this is String. For u8, this is Vec<u8>.

Required Methods

fn from_ascii(c: u8) -> Self

Convert the given ASCII character to this character type.

fn is_inline_whitespace(&self) -> bool

Returns true if the character is canonically considered to be inline whitespace (i.e: not part of a newline).

fn is_whitespace(&self) -> bool

Returns true if the character is canonically considered to be whitespace.

fn digit_zero() -> Self

Return the ‘0’ digit of the character.

fn is_digit(&self, radix: u32) -> bool

Returns true if the character is canonically considered to be a numeric digit.

fn to_char(&self) -> char

Returns this character as a char.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl Character for char

type Str = str

type Collection = String

fn from_ascii(c: u8) -> Self

fn is_inline_whitespace(&self) -> bool

fn is_whitespace(&self) -> bool

fn digit_zero() -> Self

fn is_digit(&self, radix: u32) -> bool

fn to_char(&self) -> char

impl Character for u8

type Str = [u8]

type Collection = Vec<u8>

fn from_ascii(c: u8) -> Self

fn is_inline_whitespace(&self) -> bool

fn is_whitespace(&self) -> bool

fn digit_zero() -> Self

fn is_digit(&self, radix: u32) -> bool

fn to_char(&self) -> char

Implementors