Struct CharSet 

pub struct CharSet { /* private fields */ }

A set of code points stored as normalised inclusive ranges.

Implementations

impl CharSet

pub fn empty() -> Self

The empty set.

pub fn single(c: u32) -> Self

One code point.

pub fn range(lo: u32, hi: u32) -> Self

Inclusive range; empty when lo > hi.

pub fn from_ranges<I: IntoIterator<Item = (u32, u32)>>(it: I) -> Self

Normalise arbitrary ranges (any order, overlapping, touching).

pub fn ranges(&self) -> &[(u32, u32)]

The normalised ranges.

pub fn is_empty(&self) -> bool

True when no code point is a member.

pub fn smallest(&self) -> Option<u32>

Smallest member.

pub fn contains(&self, c: u32) -> bool

Membership test.

pub fn count(&self) -> u64

Number of members.

pub fn union(&self, o: &CharSet) -> CharSet

Set union.

pub fn intersect(&self, o: &CharSet) -> CharSet

Set intersection.

pub fn difference(&self, o: &CharSet) -> CharSet

Members of self that are not in o.

Trait Implementations

impl Clone for CharSet

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CharSet

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

Formats the value using the given formatter.

impl Default for CharSet

fn default() -> Self

Returns the “default value” for a type.

impl Eq for CharSet

impl Hash for CharSet

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for CharSet

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.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for CharSet

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for CharSet

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 StructuralPartialEq for CharSet