Struct PartialCodePoint

pub struct PartialCodePoint(/* private fields */);

A type which represents part of a utf-8 code point

It does not know which part of a code point it represents (e.g. utf-8 first or later byte of a code point > 0x7f).

When used in a iteration like context it is also not guaranteed to go through all utf-8 bytes, it might, or it might just represent the first byte replacing all bytes > 0x7f with 0xFF.

This allows efficiently abstracting over char sequences and utf-8 byte sequences for tasks which are mainly focused on us-ascii and treat all non ascii utf8 code points the same.

Implementations

impl PartialCodePoint

pub fn as_u8(self) -> u8

pub fn from_utf8_byte(u8b: u8) -> PartialCodePoint

creates a partial code point from a utf8 byte

The inner value will be the byte passed in, which should not be 0xff as 0xff doesn’t appear in a utf-8 byte sequence

Debug Assertions

if debug assertions are enabled and 0xff is passed in this will panic as it wasn’t created from a byte from a utf-8 byte sequence

pub fn from_code_point(code_point: u32) -> PartialCodePoint

creates a PartialCodePoint from a utf-8 code point.

The inner value will be:

• the char if the code point is us-ascii
• 0xFF if it is larger then 0x7f i.e. non us-ascii

Trait Implementations

impl Clone for PartialCodePoint

fn clone(&self) -> PartialCodePoint

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PartialCodePoint

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

Formats the value using the given formatter.

impl Hash for PartialCodePoint

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 PartialCodePoint

fn cmp(&self, other: &PartialCodePoint) -> 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 PartialCodePoint

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

fn partial_cmp(&self, other: &PartialCodePoint) -> 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 PartialCodePoint

impl Eq for PartialCodePoint

impl StructuralPartialEq for PartialCodePoint