Struct Position 

pub struct Position {
    pub offset: usize,
}

A position in a document represented as byte offset

This is the primary position representation used internally for efficiency. Can be converted to/from line/column positions.

Examples

use ass_editor::{Position, EditorDocument};

let doc = EditorDocument::from_content("Hello World").unwrap();
let pos = Position::new(6); // Position before "World"

// Basic operations
assert_eq!(pos.offset, 6);
assert!(!pos.is_start());

// Position arithmetic  
let advanced = pos.advance(5);
assert_eq!(advanced.offset, 11);

let retreated = pos.retreat(3);
assert_eq!(retreated.offset, 3);

Fields

offset: usize

Byte offset from the beginning of the document

Implementations

impl Position

pub const fn new(offset: usize) -> Self

Create a new position from byte offset

pub const fn start() -> Self

Create a position at the start of the document

pub const fn is_start(&self) -> bool

Check if this position is at the start

pub const fn advance(&self, bytes: usize) -> Self

Advance position by given bytes

pub const fn retreat(&self, bytes: usize) -> Self

Move position back by given bytes

Trait Implementations

impl Clone for Position

fn clone(&self) -> Position

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Position

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

Formats the value using the given formatter.

impl Default for Position

fn default() -> Self

Returns the “default value” for a type.

impl Display for Position

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

Formats the value using the given formatter.

impl Hash for Position

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 Position

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

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

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

impl Eq for Position

impl StructuralPartialEq for Position