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refactor: using data-driven map to refactor modifier diff

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This commit is contained in:
Qiumix 2026-06-11 02:30:49 +08:00
parent 07a5deb109
commit 814b766cce
1 changed files with 40 additions and 46 deletions
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86
yazi-tui/src/backend.rs
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@ -117,10 +117,27 @@ where
/// Apply the diff between two `Modifier` sets by emitting SGR codes.
fn write_modifier_diff(w: &mut impl Write, from: Modifier, to: Modifier) -> io::Result<()> {
let removed = from - to;
if removed.contains(Modifier::REVERSED) {
write!(w, "{}", SetSgr::NoReverse)?;
let added = to - from;
// Process removed styles
let removed_styles = [
(Modifier::REVERSED, SetSgr::NoReverse),
(Modifier::ITALIC, SetSgr::NoItalic),
(Modifier::UNDERLINED, SetSgr::NoUnderline),
(Modifier::CROSSED_OUT, SetSgr::NotCrossedOut),
(Modifier::HIDDEN, SetSgr::NoHidden),
];
for (modifier, sgr) in removed_styles {
if removed.contains(modifier) {
write!(w, "{}", sgr)?;
}
}
if removed.contains(Modifier::SLOW_BLINK) || removed.contains(Modifier::RAPID_BLINK) {
write!(w, "{}", SetSgr::NoBlink)?;
}
// Process intensity (Bold / Dim) status transitions
let reset_intensity = removed.contains(Modifier::BOLD) || removed.contains(Modifier::DIM);
if reset_intensity {
// Bold and Dim are both reset by applying the Normal intensity
@ -131,55 +148,32 @@ fn write_modifier_diff(w: &mut impl Write, from: Modifier, to: Modifier) -> io::
if to.contains(Modifier::DIM) {
write!(w, "{}", SetSgr::Dim)?;
}
if to.contains(Modifier::BOLD) {
write!(w, "{}", SetSgr::Bold)?;
}
} else {
if added.contains(Modifier::BOLD) {
write!(w, "{}", SetSgr::Bold)?;
}
if added.contains(Modifier::DIM) {
write!(w, "{}", SetSgr::Dim)?;
}
}
if removed.contains(Modifier::ITALIC) {
write!(w, "{}", SetSgr::NoItalic)?;
}
if removed.contains(Modifier::UNDERLINED) {
write!(w, "{}", SetSgr::NoUnderline)?;
}
if removed.contains(Modifier::CROSSED_OUT) {
write!(w, "{}", SetSgr::NotCrossedOut)?;
}
if removed.contains(Modifier::HIDDEN) {
write!(w, "{}", SetSgr::NoHidden)?;
}
if removed.contains(Modifier::SLOW_BLINK) || removed.contains(Modifier::RAPID_BLINK) {
write!(w, "{}", SetSgr::NoBlink)?;
}
let added = to - from;
if added.contains(Modifier::REVERSED) {
write!(w, "{}", SetSgr::Reverse)?;
}
if added.contains(Modifier::BOLD) && !reset_intensity {
write!(w, "{}", SetSgr::Bold)?;
}
if added.contains(Modifier::ITALIC) {
write!(w, "{}", SetSgr::Italic)?;
}
if added.contains(Modifier::UNDERLINED) {
write!(w, "{}", SetSgr::Underlined)?;
}
if added.contains(Modifier::DIM) && !reset_intensity {
write!(w, "{}", SetSgr::Dim)?;
}
if added.contains(Modifier::CROSSED_OUT) {
write!(w, "{}", SetSgr::CrossedOut)?;
}
if added.contains(Modifier::HIDDEN) {
write!(w, "{}", SetSgr::Hidden)?;
}
if added.contains(Modifier::SLOW_BLINK) {
write!(w, "{}", SetSgr::SlowBlink)?;
}
if added.contains(Modifier::RAPID_BLINK) {
write!(w, "{}", SetSgr::RapidBlink)?;
// Process added styles
let added_styles = [
(Modifier::REVERSED, SetSgr::Reverse),
(Modifier::ITALIC, SetSgr::Italic),
(Modifier::UNDERLINED, SetSgr::Underlined),
(Modifier::CROSSED_OUT, SetSgr::CrossedOut),
(Modifier::HIDDEN, SetSgr::Hidden),
(Modifier::SLOW_BLINK, SetSgr::SlowBlink),
(Modifier::RAPID_BLINK, SetSgr::RapidBlink),
];
for (modifier, sgr) in added_styles {
if added.contains(modifier) {
write!(w, "{}", sgr)?;
}
}
Ok(())