Struct Completion 

pub struct Completion { /* private fields */ }

a completion in progress: the matches for the word that was under the cursor, and which one currently occupies the line.

Implementations

impl Completion

pub fn build<'a>( text: &str, cursor: usize, emotes: impl Iterator<Item = &'a str>, users: impl Iterator<Item = &'a str>, ) -> Option<Completion>

find the word ending at cursor and gather its matches. None when the cursor doesn’t end a word or nothing matches — the tab then does nothing.

pub fn advance(&mut self, dir: i32) -> (usize, usize, &str)

step to the next (+1) or previous (-1) match. returns the span to replace — (lo, hi) in char indices — and the replacement text; the internal span tracks the replacement so the next advance swaps it out.

Trait Implementations

impl Debug for Completion

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

Formats the value using the given formatter.