Struct Number

pub struct Number<'a> { /* private fields */ }

A reference to a substring of one or more (decimal) digits.

Ord and Eq are implemented for this type, which behave as if using arbitrary-precision integers, but performs no allocations. Note that this means that leading zeros on a number will be ignored for the purpose of comparison.

Implementations

impl<'a> Number<'a>

pub fn read(src: &'a str) -> Option<Self>

Greedily reads a (non-empty) Number segment from the beginning of the string. Returns None if the string does not start with a (decimal) digit.

pub fn as_str(&self) -> &'a str

Returns the (non-empty) substring that was read via Number::read.

Trait Implementations

impl<'a> Clone for Number<'a>

fn clone(&self) -> Number<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Number<'a>

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

Formats the value using the given formatter.

impl Ord for Number<'_>

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Number<'_>

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Number<'_>

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'a> Copy for Number<'a>

impl Eq for Number<'_>