Struct regex_syntax::hir::ClassUnicodeRange

pub struct ClassUnicodeRange {
    start: char,
    end: char,
}

A single range of characters represented by Unicode scalar values.

The range is closed. That is, the start and end of the range are included in the range.

Fields

start: char

end: char

Implementations

impl ClassUnicodeRange

pub fn new(start: char, end: char) -> ClassUnicodeRange

Create a new Unicode scalar value range for a character class.

The returned range is always in a canonical form. That is, the range returned always satisfies the invariant that start <= end.

pub fn start(&self) -> char

Return the start of this range.

The start of a range is always less than or equal to the end of the range.

pub fn end(&self) -> char

Return the end of this range.

The end of a range is always greater than or equal to the start of the range.

pub fn len(&self) -> usize

Returns the number of codepoints in this range.

Trait Implementations

impl Clone for ClassUnicodeRange

fn clone(&self) -> ClassUnicodeRange

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ClassUnicodeRange

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

Formats the value using the given formatter.

impl Default for ClassUnicodeRange

fn default() -> ClassUnicodeRange

Returns the “default value” for a type.

impl Interval for ClassUnicodeRange

fn case_fold_simple( &self, ranges: &mut Vec<ClassUnicodeRange>, ) -> Result<(), CaseFoldError>

Apply simple case folding to this Unicode scalar value range.

Additional ranges are appended to the given vector. Canonical ordering is not maintained in the given vector.

type Bound = char

fn lower(&self) -> char

fn upper(&self) -> char

fn set_lower(&mut self, bound: char)

fn set_upper(&mut self, bound: char)

fn create(lower: Self::Bound, upper: Self::Bound) -> Self

Create a new interval.

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

Union the given overlapping range into this range.

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

Intersect this range with the given range and return the result.

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

Subtract the given range from this range and return the resulting ranges.

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

Returns true if and only if the two ranges are contiguous. Two ranges are contiguous if and only if the ranges are either overlapping or adjacent.

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

Returns true if and only if the intersection of this range and the other range is empty.

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

Returns true if and only if this range is a subset of the other range.

impl Ord for ClassUnicodeRange

fn cmp(&self, other: &ClassUnicodeRange) -> 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 + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for ClassUnicodeRange

fn eq(&self, other: &ClassUnicodeRange) -> 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 ClassUnicodeRange

fn partial_cmp(&self, other: &ClassUnicodeRange) -> 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 Copy for ClassUnicodeRange

impl Eq for ClassUnicodeRange

impl StructuralPartialEq for ClassUnicodeRange