diff --git a/helix-core/src/auto_pairs.rs b/helix-core/src/auto_pairs.rs index 853290404..866fafaab 100644 --- a/helix-core/src/auto_pairs.rs +++ b/helix-core/src/auto_pairs.rs @@ -335,17 +335,37 @@ fn handle_close(doc: &Rope, selection: &Selection, pair: &Pair) -> Transaction { /// handle cases where open and close is the same, or in triples ("""docstring""") fn handle_same(doc: &Rope, selection: &Selection, pair: &Pair) -> Transaction { let mut end_ranges = SmallVec::with_capacity(selection.len()); - let mut offs = 0; let transaction = Transaction::change_by_selection(doc, selection, |start_range| { let cursor = start_range.cursor(doc.slice(..)); let mut len_inserted = 0; + let has_at_least_two_before = cursor >= 2 + && doc.get_char(cursor - 1) == Some(pair.open) + && doc.get_char(cursor - 2) == Some(pair.open); + let has_at_least_three_before = + has_at_least_two_before && cursor >= 3 && doc.get_char(cursor - 3) == Some(pair.open); + let next_char = doc.get_char(cursor); - let change = if next_char == Some(pair.open) { - // return transaction that moves past close - (cursor, cursor, None) // no-op + // (from, to, replacement) + let change = if next_char == Some(pair.close) { + // moves past close + (cursor, cursor, None) // no-op - don't insert char + } else if has_at_least_three_before { + // don't auto pair more than triple quotes + (cursor, cursor, Some(Tendril::from_iter([pair.close]))) // only insert one char (normal operation) + } else if has_at_least_two_before { + // exactly two before: auto-pair 3 quotes + // `''|` -> `'''|'''` + ( + cursor, + cursor, + Some(Tendril::from_iter([ + // first is the default keystroke, the rest 3 are auto-pair + pair.close, pair.close, pair.close, pair.close, + ])), + ) } else { let mut pair_str = Tendril::new(); pair_str.push(pair.open);