Upstream zed-industries/zed state of the touched files before 41f88af76a
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use std::borrow::Cow;
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/// The mappings defined in this file where created from reading the alacritty source
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use gpui::Keystroke;
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use crate::Modes;
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#[derive(Debug, PartialEq, Eq)]
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enum TerminalModifiers {
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None,
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Alt,
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Ctrl,
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Shift,
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CtrlShift,
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Other,
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}
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impl TerminalModifiers {
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fn new(ks: &Keystroke) -> Self {
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match (
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ks.modifiers.alt,
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ks.modifiers.control,
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ks.modifiers.shift,
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ks.modifiers.platform,
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) {
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(false, false, false, false) => TerminalModifiers::None,
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(true, false, false, false) => TerminalModifiers::Alt,
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(false, true, false, false) => TerminalModifiers::Ctrl,
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(false, false, true, false) => TerminalModifiers::Shift,
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(false, true, true, false) => TerminalModifiers::CtrlShift,
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_ => TerminalModifiers::Other,
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}
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}
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fn any(&self) -> bool {
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match &self {
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TerminalModifiers::None => false,
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TerminalModifiers::Alt => true,
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TerminalModifiers::Ctrl => true,
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TerminalModifiers::Shift => true,
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TerminalModifiers::CtrlShift => true,
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TerminalModifiers::Other => true,
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}
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}
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}
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pub(crate) fn to_esc_str(
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keystroke: &Keystroke,
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mode: Modes,
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option_as_meta: bool,
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) -> Option<Cow<'static, str>> {
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let modifiers = TerminalModifiers::new(keystroke);
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// Manual Bindings including modifiers
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let manual_esc_str: Option<&'static str> = match (keystroke.key.as_ref(), &modifiers) {
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//Basic special keys
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("tab", TerminalModifiers::None) => Some("\x09"),
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("escape", TerminalModifiers::None) => Some("\x1b"),
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("enter", TerminalModifiers::None) => Some("\x0d"),
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("enter", TerminalModifiers::Shift) => Some("\x0a"),
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("enter", TerminalModifiers::Alt) => Some("\x1b\x0d"),
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("backspace", TerminalModifiers::None) => Some("\x7f"),
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//Interesting escape codes
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("tab", TerminalModifiers::Shift) => Some("\x1b[Z"),
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("backspace", TerminalModifiers::Ctrl) => Some("\x08"),
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("backspace", TerminalModifiers::Alt) => Some("\x1b\x7f"),
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("backspace", TerminalModifiers::Shift) => Some("\x7f"),
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("space", TerminalModifiers::Ctrl) => Some("\x00"),
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("home", TerminalModifiers::None) if mode.contains(Modes::APP_CURSOR) => Some("\x1bOH"),
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("home", TerminalModifiers::None) if !mode.contains(Modes::APP_CURSOR) => Some("\x1b[H"),
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("end", TerminalModifiers::None) if mode.contains(Modes::APP_CURSOR) => Some("\x1bOF"),
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("end", TerminalModifiers::None) if !mode.contains(Modes::APP_CURSOR) => Some("\x1b[F"),
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("up", TerminalModifiers::None) if mode.contains(Modes::APP_CURSOR) => Some("\x1bOA"),
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("up", TerminalModifiers::None) if !mode.contains(Modes::APP_CURSOR) => Some("\x1b[A"),
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("down", TerminalModifiers::None) if mode.contains(Modes::APP_CURSOR) => Some("\x1bOB"),
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("down", TerminalModifiers::None) if !mode.contains(Modes::APP_CURSOR) => Some("\x1b[B"),
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("right", TerminalModifiers::None) if mode.contains(Modes::APP_CURSOR) => Some("\x1bOC"),
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("right", TerminalModifiers::None) if !mode.contains(Modes::APP_CURSOR) => Some("\x1b[C"),
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("left", TerminalModifiers::None) if mode.contains(Modes::APP_CURSOR) => Some("\x1bOD"),
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("left", TerminalModifiers::None) if !mode.contains(Modes::APP_CURSOR) => Some("\x1b[D"),
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("back", TerminalModifiers::None) => Some("\x7f"),
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("insert", TerminalModifiers::None) => Some("\x1b[2~"),
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("delete", TerminalModifiers::None) => Some("\x1b[3~"),
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("pageup", TerminalModifiers::None) => Some("\x1b[5~"),
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("pagedown", TerminalModifiers::None) => Some("\x1b[6~"),
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("f1", TerminalModifiers::None) => Some("\x1bOP"),
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("f2", TerminalModifiers::None) => Some("\x1bOQ"),
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("f3", TerminalModifiers::None) => Some("\x1bOR"),
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("f4", TerminalModifiers::None) => Some("\x1bOS"),
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("f5", TerminalModifiers::None) => Some("\x1b[15~"),
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("f6", TerminalModifiers::None) => Some("\x1b[17~"),
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("f7", TerminalModifiers::None) => Some("\x1b[18~"),
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("f8", TerminalModifiers::None) => Some("\x1b[19~"),
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("f9", TerminalModifiers::None) => Some("\x1b[20~"),
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("f10", TerminalModifiers::None) => Some("\x1b[21~"),
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("f11", TerminalModifiers::None) => Some("\x1b[23~"),
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("f12", TerminalModifiers::None) => Some("\x1b[24~"),
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("f13", TerminalModifiers::None) => Some("\x1b[25~"),
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("f14", TerminalModifiers::None) => Some("\x1b[26~"),
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("f15", TerminalModifiers::None) => Some("\x1b[28~"),
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("f16", TerminalModifiers::None) => Some("\x1b[29~"),
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("f17", TerminalModifiers::None) => Some("\x1b[31~"),
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("f18", TerminalModifiers::None) => Some("\x1b[32~"),
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("f19", TerminalModifiers::None) => Some("\x1b[33~"),
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("f20", TerminalModifiers::None) => Some("\x1b[34~"),
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// NumpadEnter, Action::Esc("\n".into());
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//Mappings for caret notation keys
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("a", TerminalModifiers::Ctrl) => Some("\x01"), //1
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("A", TerminalModifiers::CtrlShift) => Some("\x01"), //1
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("b", TerminalModifiers::Ctrl) => Some("\x02"), //2
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("B", TerminalModifiers::CtrlShift) => Some("\x02"), //2
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("c", TerminalModifiers::Ctrl) => Some("\x03"), //3
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("C", TerminalModifiers::CtrlShift) => Some("\x03"), //3
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("d", TerminalModifiers::Ctrl) => Some("\x04"), //4
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("D", TerminalModifiers::CtrlShift) => Some("\x04"), //4
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("e", TerminalModifiers::Ctrl) => Some("\x05"), //5
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("E", TerminalModifiers::CtrlShift) => Some("\x05"), //5
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("f", TerminalModifiers::Ctrl) => Some("\x06"), //6
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("F", TerminalModifiers::CtrlShift) => Some("\x06"), //6
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("g", TerminalModifiers::Ctrl) => Some("\x07"), //7
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("G", TerminalModifiers::CtrlShift) => Some("\x07"), //7
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("h", TerminalModifiers::Ctrl) => Some("\x08"), //8
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("H", TerminalModifiers::CtrlShift) => Some("\x08"), //8
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("i", TerminalModifiers::Ctrl) => Some("\x09"), //9
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("I", TerminalModifiers::CtrlShift) => Some("\x09"), //9
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("j", TerminalModifiers::Ctrl) => Some("\x0a"), //10
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("J", TerminalModifiers::CtrlShift) => Some("\x0a"), //10
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("k", TerminalModifiers::Ctrl) => Some("\x0b"), //11
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("K", TerminalModifiers::CtrlShift) => Some("\x0b"), //11
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("l", TerminalModifiers::Ctrl) => Some("\x0c"), //12
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("L", TerminalModifiers::CtrlShift) => Some("\x0c"), //12
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("m", TerminalModifiers::Ctrl) => Some("\x0d"), //13
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("M", TerminalModifiers::CtrlShift) => Some("\x0d"), //13
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("n", TerminalModifiers::Ctrl) => Some("\x0e"), //14
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("N", TerminalModifiers::CtrlShift) => Some("\x0e"), //14
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("o", TerminalModifiers::Ctrl) => Some("\x0f"), //15
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("O", TerminalModifiers::CtrlShift) => Some("\x0f"), //15
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("p", TerminalModifiers::Ctrl) => Some("\x10"), //16
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("P", TerminalModifiers::CtrlShift) => Some("\x10"), //16
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("q", TerminalModifiers::Ctrl) => Some("\x11"), //17
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("Q", TerminalModifiers::CtrlShift) => Some("\x11"), //17
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("r", TerminalModifiers::Ctrl) => Some("\x12"), //18
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("R", TerminalModifiers::CtrlShift) => Some("\x12"), //18
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("s", TerminalModifiers::Ctrl) => Some("\x13"), //19
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("S", TerminalModifiers::CtrlShift) => Some("\x13"), //19
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("t", TerminalModifiers::Ctrl) => Some("\x14"), //20
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("T", TerminalModifiers::CtrlShift) => Some("\x14"), //20
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("u", TerminalModifiers::Ctrl) => Some("\x15"), //21
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("U", TerminalModifiers::CtrlShift) => Some("\x15"), //21
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("v", TerminalModifiers::Ctrl) => Some("\x16"), //22
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("V", TerminalModifiers::CtrlShift) => Some("\x16"), //22
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("w", TerminalModifiers::Ctrl) => Some("\x17"), //23
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("W", TerminalModifiers::CtrlShift) => Some("\x17"), //23
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("x", TerminalModifiers::Ctrl) => Some("\x18"), //24
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("X", TerminalModifiers::CtrlShift) => Some("\x18"), //24
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("y", TerminalModifiers::Ctrl) => Some("\x19"), //25
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("Y", TerminalModifiers::CtrlShift) => Some("\x19"), //25
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("z", TerminalModifiers::Ctrl) => Some("\x1a"), //26
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("Z", TerminalModifiers::CtrlShift) => Some("\x1a"), //26
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("@", TerminalModifiers::Ctrl) => Some("\x00"), //0
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("[", TerminalModifiers::Ctrl) => Some("\x1b"), //27
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("\\", TerminalModifiers::Ctrl) => Some("\x1c"), //28
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("]", TerminalModifiers::Ctrl) => Some("\x1d"), //29
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("^", TerminalModifiers::Ctrl) => Some("\x1e"), //30
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("_", TerminalModifiers::Ctrl) => Some("\x1f"), //31
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("?", TerminalModifiers::Ctrl) => Some("\x7f"), //127
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_ => None,
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};
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if let Some(esc_str) = manual_esc_str {
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return Some(Cow::Borrowed(esc_str));
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}
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// Automated bindings applying modifiers
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if modifiers.any() {
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let modifier_code = modifier_code(keystroke);
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let modified_esc_str = match keystroke.key.as_ref() {
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"up" => Some(format!("\x1b[1;{}A", modifier_code)),
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"down" => Some(format!("\x1b[1;{}B", modifier_code)),
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"right" => Some(format!("\x1b[1;{}C", modifier_code)),
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"left" => Some(format!("\x1b[1;{}D", modifier_code)),
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"f1" => Some(format!("\x1b[1;{}P", modifier_code)),
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"f2" => Some(format!("\x1b[1;{}Q", modifier_code)),
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"f3" => Some(format!("\x1b[1;{}R", modifier_code)),
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"f4" => Some(format!("\x1b[1;{}S", modifier_code)),
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"f5" => Some(format!("\x1b[15;{}~", modifier_code)),
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"f6" => Some(format!("\x1b[17;{}~", modifier_code)),
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"f7" => Some(format!("\x1b[18;{}~", modifier_code)),
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"f8" => Some(format!("\x1b[19;{}~", modifier_code)),
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"f9" => Some(format!("\x1b[20;{}~", modifier_code)),
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"f10" => Some(format!("\x1b[21;{}~", modifier_code)),
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"f11" => Some(format!("\x1b[23;{}~", modifier_code)),
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"f12" => Some(format!("\x1b[24;{}~", modifier_code)),
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"f13" => Some(format!("\x1b[25;{}~", modifier_code)),
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"f14" => Some(format!("\x1b[26;{}~", modifier_code)),
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"f15" => Some(format!("\x1b[28;{}~", modifier_code)),
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"f16" => Some(format!("\x1b[29;{}~", modifier_code)),
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"f17" => Some(format!("\x1b[31;{}~", modifier_code)),
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"f18" => Some(format!("\x1b[32;{}~", modifier_code)),
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"f19" => Some(format!("\x1b[33;{}~", modifier_code)),
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"f20" => Some(format!("\x1b[34;{}~", modifier_code)),
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"insert" => Some(format!("\x1b[2;{}~", modifier_code)),
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"pageup" => Some(format!("\x1b[5;{}~", modifier_code)),
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"pagedown" => Some(format!("\x1b[6;{}~", modifier_code)),
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"end" => Some(format!("\x1b[1;{}F", modifier_code)),
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"home" => Some(format!("\x1b[1;{}H", modifier_code)),
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_ => None,
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};
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if let Some(esc_str) = modified_esc_str {
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return Some(Cow::Owned(esc_str));
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}
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}
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// Handling alt keys. These work for single ASCII characters.
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if (!cfg!(target_os = "macos") || option_as_meta)
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&& keystroke.modifiers.alt
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&& keystroke.key.is_ascii()
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&& keystroke.key.len() == 1
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{
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let key = keystroke.key.chars().next().unwrap();
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if modifiers == TerminalModifiers::Alt {
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return Some(Cow::Owned(format!("\x1b{key}")));
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} else if keystroke.modifiers.shift {
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return Some(Cow::Owned(format!("\x1b{}", key.to_ascii_uppercase())));
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} else if keystroke.modifiers.control && key.is_ascii_lowercase() {
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return Some(Cow::Owned(format!(
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"\x1b{}",
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(key as u8 - b'a' + 1) as char
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)));
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}
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}
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None
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}
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/// Code Modifiers
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/// ---------+---------------------------
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/// 2 | Shift
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/// 3 | Alt
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/// 4 | Shift + Alt
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/// 5 | Control
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/// 6 | Shift + Control
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/// 7 | Alt + Control
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/// 8 | Shift + Alt + Control
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/// ---------+---------------------------
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/// from: https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h2-PC-Style-Function-Keys
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fn modifier_code(keystroke: &Keystroke) -> u32 {
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let mut modifier_code = 0;
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if keystroke.modifiers.shift {
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modifier_code |= 1;
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}
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if keystroke.modifiers.alt {
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modifier_code |= 1 << 1;
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}
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if keystroke.modifiers.control {
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modifier_code |= 1 << 2;
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}
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modifier_code + 1
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}
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#[cfg(test)]
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mod test {
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use gpui::Modifiers;
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use super::*;
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#[test]
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fn test_plain_inputs() {
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let ks = Keystroke {
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modifiers: Modifiers {
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control: false,
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alt: false,
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shift: false,
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platform: false,
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function: false,
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},
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key: "🖖🏻".to_string(), //2 char string
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key_char: None,
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};
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assert_eq!(to_esc_str(&ks, Modes::NONE, false), None);
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}
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#[test]
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fn test_application_mode() {
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let app_cursor = Modes::APP_CURSOR;
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let none = Modes::NONE;
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let up = Keystroke::parse("up").unwrap();
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let down = Keystroke::parse("down").unwrap();
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let left = Keystroke::parse("left").unwrap();
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let right = Keystroke::parse("right").unwrap();
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assert_eq!(to_esc_str(&up, none, false), Some("\x1b[A".into()));
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assert_eq!(to_esc_str(&down, none, false), Some("\x1b[B".into()));
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assert_eq!(to_esc_str(&right, none, false), Some("\x1b[C".into()));
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assert_eq!(to_esc_str(&left, none, false), Some("\x1b[D".into()));
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assert_eq!(to_esc_str(&up, app_cursor, false), Some("\x1bOA".into()));
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assert_eq!(to_esc_str(&down, app_cursor, false), Some("\x1bOB".into()));
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assert_eq!(to_esc_str(&right, app_cursor, false), Some("\x1bOC".into()));
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assert_eq!(to_esc_str(&left, app_cursor, false), Some("\x1bOD".into()));
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let home = Keystroke::parse("home").unwrap();
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let end = Keystroke::parse("end").unwrap();
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assert_eq!(to_esc_str(&home, none, false), Some("\x1b[H".into()));
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assert_eq!(to_esc_str(&end, none, false), Some("\x1b[F".into()));
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||||||
|
assert_eq!(to_esc_str(&home, app_cursor, false), Some("\x1bOH".into()));
|
||||||
|
assert_eq!(to_esc_str(&end, app_cursor, false), Some("\x1bOF".into()));
|
||||||
|
|
||||||
|
let shift_up = Keystroke::parse("shift-up").unwrap();
|
||||||
|
let shift_down = Keystroke::parse("shift-down").unwrap();
|
||||||
|
let shift_home = Keystroke::parse("shift-home").unwrap();
|
||||||
|
let shift_end = Keystroke::parse("shift-end").unwrap();
|
||||||
|
assert_eq!(to_esc_str(&shift_up, none, false), Some("\x1b[1;2A".into()));
|
||||||
|
assert_eq!(
|
||||||
|
to_esc_str(&shift_down, none, false),
|
||||||
|
Some("\x1b[1;2B".into())
|
||||||
|
);
|
||||||
|
assert_eq!(
|
||||||
|
to_esc_str(&shift_home, none, false),
|
||||||
|
Some("\x1b[1;2H".into())
|
||||||
|
);
|
||||||
|
assert_eq!(
|
||||||
|
to_esc_str(&shift_end, none, false),
|
||||||
|
Some("\x1b[1;2F".into())
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn test_ctrl_codes() {
|
||||||
|
let letters_lower = 'a'..='z';
|
||||||
|
let letters_upper = 'A'..='Z';
|
||||||
|
let mode = Modes::APP_CURSOR;
|
||||||
|
|
||||||
|
for (lower, upper) in letters_lower.zip(letters_upper) {
|
||||||
|
assert_eq!(
|
||||||
|
to_esc_str(
|
||||||
|
&Keystroke::parse(&format!("ctrl-shift-{}", lower)).unwrap(),
|
||||||
|
mode,
|
||||||
|
false
|
||||||
|
),
|
||||||
|
to_esc_str(
|
||||||
|
&Keystroke::parse(&format!("ctrl-{}", upper)).unwrap(),
|
||||||
|
mode,
|
||||||
|
false
|
||||||
|
),
|
||||||
|
"On letter: {}/{}",
|
||||||
|
lower,
|
||||||
|
upper
|
||||||
|
)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn alt_is_meta() {
|
||||||
|
let ascii_printable = ' '..='~';
|
||||||
|
for character in ascii_printable {
|
||||||
|
assert_eq!(
|
||||||
|
to_esc_str(
|
||||||
|
&Keystroke::parse(&format!("alt-{}", character)).unwrap(),
|
||||||
|
Modes::NONE,
|
||||||
|
true
|
||||||
|
)
|
||||||
|
.unwrap(),
|
||||||
|
format!("\x1b{}", character)
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
let gpui_keys = [
|
||||||
|
"up", "down", "right", "left", "f1", "f2", "f3", "f4", "f5", "f6", "f7", "f8", "f9",
|
||||||
|
"f10", "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", "f19", "f20", "insert",
|
||||||
|
"pageup", "pagedown", "end", "home",
|
||||||
|
];
|
||||||
|
|
||||||
|
for key in gpui_keys {
|
||||||
|
assert_ne!(
|
||||||
|
to_esc_str(
|
||||||
|
&Keystroke::parse(&format!("alt-{}", key)).unwrap(),
|
||||||
|
Modes::NONE,
|
||||||
|
true
|
||||||
|
)
|
||||||
|
.unwrap(),
|
||||||
|
format!("\x1b{}", key)
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn test_ctrl_alt_codes() {
|
||||||
|
let letters_lower = 'a'..='z';
|
||||||
|
let esc_codes = '\x01'..='\x1a';
|
||||||
|
for (character, esc_code) in letters_lower.zip(esc_codes) {
|
||||||
|
assert_eq!(
|
||||||
|
to_esc_str(
|
||||||
|
&Keystroke::parse(&format!("ctrl-alt-{}", character)).unwrap(),
|
||||||
|
Modes::NONE,
|
||||||
|
true
|
||||||
|
)
|
||||||
|
.unwrap(),
|
||||||
|
format!("\x1b{}", esc_code)
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn test_shift_enter_newline() {
|
||||||
|
let shift_enter = Keystroke::parse("shift-enter").unwrap();
|
||||||
|
let regular_enter = Keystroke::parse("enter").unwrap();
|
||||||
|
let mode = Modes::NONE;
|
||||||
|
|
||||||
|
// Shift-enter should send line feed (newline)
|
||||||
|
assert_eq!(to_esc_str(&shift_enter, mode, false), Some("\x0a".into()));
|
||||||
|
|
||||||
|
// Regular enter should still send carriage return
|
||||||
|
assert_eq!(to_esc_str(®ular_enter, mode, false), Some("\x0d".into()));
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn test_modifier_code_calc() {
|
||||||
|
// Code Modifiers
|
||||||
|
// ---------+---------------------------
|
||||||
|
// 2 | Shift
|
||||||
|
// 3 | Alt
|
||||||
|
// 4 | Shift + Alt
|
||||||
|
// 5 | Control
|
||||||
|
// 6 | Shift + Control
|
||||||
|
// 7 | Alt + Control
|
||||||
|
// 8 | Shift + Alt + Control
|
||||||
|
// ---------+---------------------------
|
||||||
|
// from: https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h2-PC-Style-Function-Keys
|
||||||
|
assert_eq!(2, modifier_code(&Keystroke::parse("shift-a").unwrap()));
|
||||||
|
assert_eq!(3, modifier_code(&Keystroke::parse("alt-a").unwrap()));
|
||||||
|
assert_eq!(4, modifier_code(&Keystroke::parse("shift-alt-a").unwrap()));
|
||||||
|
assert_eq!(5, modifier_code(&Keystroke::parse("ctrl-a").unwrap()));
|
||||||
|
assert_eq!(6, modifier_code(&Keystroke::parse("shift-ctrl-a").unwrap()));
|
||||||
|
assert_eq!(7, modifier_code(&Keystroke::parse("alt-ctrl-a").unwrap()));
|
||||||
|
assert_eq!(
|
||||||
|
8,
|
||||||
|
modifier_code(&Keystroke::parse("shift-ctrl-alt-a").unwrap())
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
Reference in new issue
Block a user