Struct TextPosition 

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

A validated UTF-8 byte position in a particular text value.

Implementations

impl TextPosition

pub const START: Self

pub fn from_utf8(text: &str, offset: usize) -> Result<Self, TextOffsetError>

Validates a canonical UTF-8 byte offset for text.

pub fn from_utf16(text: &str, offset: usize) -> Result<Self, TextOffsetError>

Converts and validates a platform UTF-16 code-unit offset.

pub fn from_scalar_offset( text: &str, offset: usize, ) -> Result<Self, TextOffsetError>

Converts a Unicode scalar-value index used by accessibility APIs.

pub fn at_end(text: &str) -> Self

pub const fn utf8_offset(self) -> usize

pub fn utf16_offset(self, text: &str) -> Result<usize, TextOffsetError>

pub fn scalar_offset(self, text: &str) -> Result<usize, TextOffsetError>

pub fn is_grapheme_boundary(self, text: &str) -> bool

pub fn floor(text: &str, offset: usize) -> Self

Trait Implementations

impl Clone for TextPosition

fn clone(&self) -> TextPosition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TextPosition

impl Debug for TextPosition

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

Formats the value using the given formatter.

impl Default for TextPosition

fn default() -> TextPosition

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TextPosition

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for TextPosition

impl Hash for TextPosition

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 TextPosition

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

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for TextPosition

fn partial_cmp(&self, other: &TextPosition) -> 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 Serialize for TextPosition

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for TextPosition