From d277d2f83b749a38c90eb96ef7cd329cc2171cd7 Mon Sep 17 00:00:00 2001 From: Can Celik Date: Sun, 9 Aug 2026 05:10:35 +0300 Subject: fix(input): preserve alt-prefixed control keys (#2543) refs #2514 --- src/input/parse.rs | 26 ++++++++++++++++++++------ 1 file changed, 20 insertions(+), 6 deletions(-) (limited to 'src/input') diff --git a/src/input/parse.rs b/src/input/parse.rs index 085757c3..b2318339 100644 --- a/src/input/parse.rs +++ b/src/input/parse.rs @@ -87,12 +87,9 @@ fn parse_legacy_key_sequence(data: &str) -> Option { _ if data.starts_with('\x1b') => { let rest = data.strip_prefix('\x1b')?; if rest.chars().count() == 1 { - let ch = rest.chars().next()?; - let mut modifiers = KeyModifiers::ALT; - if ch.is_ascii_uppercase() { - modifiers |= KeyModifiers::SHIFT; - } - Some(TerminalKey::new(KeyCode::Char(ch), modifiers)) + let mut key = parse_legacy_key_sequence(rest)?; + key.modifiers |= KeyModifiers::ALT; + Some(key) } else { None } @@ -549,6 +546,23 @@ mod tests { assert_eq!(encode_terminal_key(key, KeyboardProtocol::Legacy), b"\x1bA"); } + #[test] + fn parse_legacy_alt_control_letter_composes_modifiers() { + let key = parse_terminal_key_sequence("\x1b\x06") + .expect("ctrl-alt-f legacy sequence should parse"); + assert_terminal_key_eq( + key.clone(), + KeyCode::Char('f'), + KeyModifiers::CONTROL | KeyModifiers::ALT, + crossterm::event::KeyEventKind::Press, + None, + ); + assert_eq!( + encode_terminal_key(key, KeyboardProtocol::Legacy), + b"\x1b\x06" + ); + } + #[test] fn unknown_legacy_ss3_sequence_remains_unsupported() { assert!(parse_terminal_key_sequence("\x1bOz").is_none()); -- cgit v1.2.3