Struct Cursor 

pub struct Cursor {
    pub position: usize,
    pub anchor: Option<usize>,
}

A cursor position in a document.

Fields

position: usize

The position (character offset) in the document.

anchor: Option<usize>

Optional anchor for selection (selection goes from anchor to position).

Implementations

impl Cursor

pub fn at(position: usize) -> Self

Create a cursor at a position (no selection).

pub fn with_selection(anchor: usize, position: usize) -> Self

Create a cursor with a selection.

pub fn has_selection(&self) -> bool

Check if this cursor has a selection.

pub fn selection_range(&self) -> Option<(usize, usize)>

Get the selection range (start, end).

pub fn selection_length(&self) -> usize

Get the selection length.

Trait Implementations

impl Clone for Cursor

fn clone(&self) -> Cursor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Cursor

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Cursor

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Cursor

fn eq(&self, other: &Cursor) -> 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 Serialize for Cursor

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Cursor

impl StructuralPartialEq for Cursor