Struct LineBuffer 

pub struct LineBuffer { /* private fields */ }

A buffer for managing lines of text in the REPL.

LineBuffer handles single and multi-line input, cursor positioning, and basic editing operations like insertion and backspace.

Implementations

impl LineBuffer

pub fn new() -> Self

Creates a new empty LineBuffer.

pub fn insert(&mut self, ch: char)

Inserts a character at the current cursor position.

pub fn backspace(&mut self) -> bool

Removes the character before the current cursor position (backspace).

Returns true if a character or line was removed, false if the buffer was already at the very beginning.

pub fn full_text(&self) -> String

Returns the full text content of the buffer as a single string.

Multiple lines are joined with newline characters.

pub fn clear(&mut self)

Clears the buffer and resets the cursor to the beginning.

pub fn is_empty(&self) -> bool

Returns true if the buffer is completely empty.