Enum utf8_ranges::Utf8Sequence

[+] Show declaration

pub enum Utf8Sequence {
    One(Utf8Range),
    Two([Utf8Range; 2]),
    Three([Utf8Range; 3]),
    Four([Utf8Range; 4]),
}

[−] Expand description

Utf8Sequence represents a sequence of byte ranges.

To match a Utf8Sequence, a candidate byte sequence must match each successive range.

For example, if there are two ranges, [C2-DF][80-BF], then the byte sequence \xDD\x61 would not match because 0x61 < 0x80.

Variants

One(Utf8Range)

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One byte range.

Two([Utf8Range; 2])

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Two successive byte ranges.

Three([Utf8Range; 3])

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Three successive byte ranges.

Four([Utf8Range; 4])

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Four successive byte ranges.

Methods

impl Utf8Sequence

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pub fn as_slice(&self) -> &[Utf8Range]

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Returns the underlying sequence of byte ranges as a slice.

pub fn len(&self) -> usize

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Returns the number of byte ranges in this sequence.

The length is guaranteed to be in the closed interval [1, 4].

pub fn matches(&self, bytes: &[u8]) -> bool

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Returns true if and only if a prefix of bytes matches this sequence of byte ranges.

Trait Implementations

impl Copy for Utf8Sequence

impl Clone for Utf8Sequence

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fn clone(&self) -> Utf8Sequence

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Returns a copy of the value.

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

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Performs copy-assignment from source.

impl Eq for Utf8Sequence

impl PartialEq for Utf8Sequence

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fn eq(&self, other: &Utf8Sequence) -> bool

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This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Utf8Sequence) -> bool

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This method tests for !=.

impl<'a> IntoIterator for &'a Utf8Sequence

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type IntoIter = Iter<'a, Utf8Range>

Which kind of iterator are we turning this into?

type Item = &'a Utf8Range

The type of the elements being iterated over.

fn into_iter(self) -> Self::IntoIter

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Creates an iterator from a value.

impl Debug for Utf8Sequence

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

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Formats the value using the given formatter.