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feat(anstyle): Add Style::render_reset #51

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Merged
epage merged 1 commit into from
Mar 6, 2023
Merged

feat(anstyle): Add Style::render_reset #51

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19 changes: 19 additions & 0 deletions crates/anstyle/src/style.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,13 @@ impl Style {
pub fn render(self) -> impl core::fmt::Display {
StyleDisplay(self)
}

/// Renders the relevant [`Reset`][crate::Reset] code
///
/// Unlike [`Reset::render`][crate::Reset::render], this will elide the code if there is nothing to reset.
pub fn render_reset(self) -> impl core::fmt::Display {
ResetDisplay(self != Self::new())
}
}

/// # Convenience
Expand Down Expand Up @@ -409,3 +416,15 @@ fn separator(f: &mut core::fmt::Formatter<'_>, first: &mut bool) -> core::fmt::R
write!(f, ";")
}
}

struct ResetDisplay(bool);

impl core::fmt::Display for ResetDisplay {
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
if self.0 {
write!(f, "\x1B[0m")
} else {
Ok(())
}
}
}