Struct EditStep 

pub struct EditStep {
    pub offset: usize,
    pub deleted: String,
    pub inserted: String,
}

A single edit step: insert, delete, or replace at a char offset. Each step stores enough information to be inverted.

Fields

offset: usize

Char offset where the edit starts.

deleted: String

Text that was deleted (empty for pure inserts).

inserted: String

Text that was inserted (empty for pure deletes).

Implementations

impl EditStep

pub fn insert(offset: usize, text: impl Into<String>) -> Self

Create an insert step.

pub fn delete(offset: usize, deleted: impl Into<String>) -> Self

Create a delete step.

pub fn replace( offset: usize, deleted: impl Into<String>, inserted: impl Into<String>, ) -> Self

Create a replace step.

pub fn inverse(&self) -> Self

Create the inverse of this step (for undo).

pub fn inserted_len(&self) -> usize

Number of chars inserted.

pub fn deleted_len(&self) -> usize

Number of chars deleted.

pub fn is_single_char_insert(&self) -> bool

True if this is a single character insert (for coalescing).

pub fn is_single_char_delete(&self) -> bool

True if this is a single character delete (for coalescing).

Trait Implementations

impl Clone for EditStep

fn clone(&self) -> EditStep

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EditStep

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

Formats the value using the given formatter.

impl PartialEq for EditStep

fn eq(&self, other: &EditStep) -> 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 Eq for EditStep

impl StructuralPartialEq for EditStep