Struct History 

pub struct History { /* private fields */ }

Manages input history for the line editor.

Implementations

impl History

pub fn new(max_len: usize) -> Self

Creates a new history buffer with the specified maximum length.

pub fn add(&mut self, line: impl Into<BString>) -> bool

Adds a new line to history, returning true if added (deduplicating adjacent identical entries).

pub fn entries(&self) -> &[BString]

Returns a slice of all stored history entries.

pub fn len(&self) -> usize

Returns the number of stored history entries.

pub fn is_empty(&self) -> bool

Returns true if the history buffer is empty.

pub fn clear(&mut self)

Clears all entries from the history buffer.

pub fn set_max_len(&mut self, max_len: usize)

Sets the maximum number of history entries allowed, evicting oldest entries if needed.

pub fn max_len(&self) -> usize

Returns the maximum number of history entries allowed.

pub fn get(&self, index: usize) -> Option<&BString>

Returns an entry at the given index, if present.

Trait Implementations

impl Clone for History

fn clone(&self) -> History

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for History

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

Formats the value using the given formatter.