Format everything with rustfmt! 💚

27 files changed, 300 insertions, 297 deletions

diff --git a/src/color.rs b/src/color.rs
index 1feca8ef..119192fe 100644
--- a/src/color.rs
+++ b/src/color.rs
@@ -49,7 +49,7 @@ impl FromStr for RgbaColor {
         }
 
         let len = hex_str.len();
-        let long  = len == 6 || len == 8;
+        let long = len == 6 || len == 8;
         let short = len == 3 || len == 4;
         let alpha = len == 4 || len == 8;
 
@@ -59,13 +59,12 @@ impl FromStr for RgbaColor {
 
         let mut values: [u8; 4] = [255; 4];
 
-        for elem in if alpha { 0..4 } else { 0..3 } {
+        for elem in if alpha { 0 .. 4 } else { 0 .. 3 } {
             let item_len = if long { 2 } else { 1 };
             let pos = elem * item_len;
 
-            let item = &hex_str[pos..(pos+item_len)];
-            values[elem] = u8::from_str_radix(item, 16)
-                .map_err(|_| ParseColorError)?;
+            let item = &hex_str[pos .. (pos + item_len)];
+            values[elem] = u8::from_str_radix(item, 16).map_err(|_| ParseColorError)?;
 
             if short {
                 // Duplicate number for shorthand notation, i.e. `a` -> `aa`
@@ -81,12 +80,14 @@ impl Debug for RgbaColor {
     fn fmt(&self, f: &mut Formatter) -> fmt::Result {
         if f.alternate() {
             write!(
-                f, "rgba({:02}, {:02}, {:02}, {:02})",
+                f,
+                "rgba({:02}, {:02}, {:02}, {:02})",
                 self.r, self.g, self.b, self.a,
             )?;
         } else {
             write!(
-                f, "#{:02x}{:02x}{:02x}{:02x}",
+                f,
+                "#{:02x}{:02x}{:02x}{:02x}",
                 self.r, self.g, self.b, self.a,
             )?;
         }
@@ -116,10 +117,7 @@ mod tests {
     #[test]
     fn parse_color_strings() {
         fn test(hex: &str, r: u8, g: u8, b: u8, a: u8) {
-            assert_eq!(
-                RgbaColor::from_str(hex),
-                Ok(RgbaColor::new(r, g, b, a)),
-            );
+            assert_eq!(RgbaColor::from_str(hex), Ok(RgbaColor::new(r, g, b, a)));
         }
 
         test("f61243ff", 0xf6, 0x12, 0x43, 0xff);
diff --git a/src/compute/scope.rs b/src/compute/scope.rs
index 3ab56561..8e6576d1 100644
--- a/src/compute/scope.rs
+++ b/src/compute/scope.rs
@@ -14,9 +14,7 @@ impl Scope {
     // Create a new empty scope with a fallback function that is invoked when no
     // match is found.
     pub fn new() -> Self {
-        Self {
-            functions: HashMap::new(),
-        }
+        Self { functions: HashMap::new() }
     }
 
     /// Associate the given name with the function.
diff --git a/src/compute/table.rs b/src/compute/table.rs
index bb71d4f2..b969c8dc 100644
--- a/src/compute/table.rs
+++ b/src/compute/table.rs
@@ -117,7 +117,8 @@ impl<V> Table<V> {
 
     /// Iterator over all borrowed keys and values.
     pub fn iter(&self) -> impl Iterator<Item = (BorrowedKey, &V)> {
-        self.nums().map(|(&k, v)| (BorrowedKey::Num(k), v))
+        self.nums()
+            .map(|(&k, v)| (BorrowedKey::Num(k), v))
             .chain(self.strs().map(|(k, v)| (BorrowedKey::Str(k), v)))
     }
 
@@ -138,13 +139,17 @@ impl<V> Table<V> {
 
     /// Move into an owned iterator over owned keys and values.
     pub fn into_iter(self) -> impl Iterator<Item = (OwnedKey, V)> {
-        self.nums.into_iter().map(|(k, v)| (OwnedKey::Num(k), v))
+        self.nums
+            .into_iter()
+            .map(|(k, v)| (OwnedKey::Num(k), v))
             .chain(self.strs.into_iter().map(|(k, v)| (OwnedKey::Str(k), v)))
     }
 
     /// Move into an owned iterator over all values in the table.
     pub fn into_values(self) -> impl Iterator<Item = V> {
-        self.nums.into_iter().map(|(_, v)| v)
+        self.nums
+            .into_iter()
+            .map(|(_, v)| v)
             .chain(self.strs.into_iter().map(|(_, v)| v))
     }
 
diff --git a/src/compute/value.rs b/src/compute/value.rs
index bac6396d..9f1174ec 100644
--- a/src/compute/value.rs
+++ b/src/compute/value.rs
@@ -6,15 +6,15 @@ use std::rc::Rc;
 
 use fontdock::{FontStyle, FontWeight, FontWidth};
 
+use super::table::{SpannedEntry, Table};
 use crate::color::RgbaColor;
 use crate::layout::{Command, Commands, Dir, LayoutContext, SpecAlign};
 use crate::length::{Length, ScaleLength};
 use crate::paper::Paper;
 use crate::syntax::span::{Span, Spanned};
-use crate::syntax::tree::{SyntaxTree, SyntaxNode};
+use crate::syntax::tree::{SyntaxNode, SyntaxTree};
 use crate::syntax::Ident;
 use crate::{DynFuture, Feedback, Pass};
-use super::table::{SpannedEntry, Table};
 
 /// A computational value.
 #[derive(Clone)]
@@ -78,9 +78,10 @@ impl Spanned<Value> {
                 for entry in table.into_values() {
                     if let Some(last_end) = end {
                         let span = Span::new(last_end, entry.key.start);
-                        commands.push(Command::LayoutSyntaxTree(vec![
-                            Spanned::new(SyntaxNode::Spacing, span)
-                        ]));
+                        commands.push(Command::LayoutSyntaxTree(vec![Spanned::new(
+                            SyntaxNode::Spacing,
+                            span,
+                        )]));
                     }
 
                     end = Some(entry.val.span.end);
@@ -90,14 +91,10 @@ impl Spanned<Value> {
             }
 
             // Format with debug.
-            val => vec![
-                Command::LayoutSyntaxTree(vec![
-                    Spanned::new(
-                        SyntaxNode::Text(format!("{:?}", val)),
-                        self.span,
-                    )
-                ])
-            ],
+            val => vec![Command::LayoutSyntaxTree(vec![Spanned::new(
+                SyntaxNode::Text(format!("{:?}", val)),
+                self.span,
+            )])],
         }
     }
 }
@@ -149,9 +146,8 @@ impl PartialEq for Value {
 /// layouting engine to do what the function pleases.
 ///
 /// The dynamic function object is wrapped in an `Rc` to keep `Value` clonable.
-pub type FuncValue = Rc<
-    dyn Fn(Span, TableValue, LayoutContext<'_>) -> DynFuture<Pass<Value>>
->;
+pub type FuncValue =
+    Rc<dyn Fn(Span, TableValue, LayoutContext<'_>) -> DynFuture<Pass<Value>>>;
 
 /// A table of values.
 ///
@@ -500,7 +496,10 @@ mod tests {
             table.expect::<String>("", Span::ZERO, &mut f),
             Some("hi".to_string())
         );
-        assert_eq!(f.diagnostics, [error!(Span::ZERO, "expected string, found bool")]);
+        assert_eq!(f.diagnostics, [error!(
+            Span::ZERO,
+            "expected string, found bool"
+        )]);
         assert_eq!(table.len(), 1);
     }
 
@@ -512,7 +511,10 @@ mod tests {
         table.insert("hi", entry(Value::Bool(true)));
         assert_eq!(table.take::<bool>(), Some(false));
         assert_eq!(table.take_key::<f64>("hi", &mut f), None);
-        assert_eq!(f.diagnostics, [error!(Span::ZERO, "expected number, found bool")]);
+        assert_eq!(f.diagnostics, [error!(
+            Span::ZERO,
+            "expected number, found bool"
+        )]);
         assert!(table.is_empty());
     }
 
@@ -522,10 +524,10 @@ mod tests {
         table.insert(1, entry(Value::Bool(false)));
         table.insert(3, entry(Value::Number(0.0)));
         table.insert(7, entry(Value::Bool(true)));
-        assert_eq!(
-            table.take_all_num::<bool>().collect::<Vec<_>>(),
-            [(1, false), (7, true)],
-        );
+        assert_eq!(table.take_all_num::<bool>().collect::<Vec<_>>(), [
+            (1, false),
+            (7, true)
+        ],);
         assert_eq!(table.len(), 1);
         assert_eq!(table[3].val.v, Value::Number(0.0));
     }
diff --git a/src/export/pdf.rs b/src/export/pdf.rs
index e8220b54..c4c12713 100644
--- a/src/export/pdf.rs
+++ b/src/export/pdf.rs
@@ -7,8 +7,8 @@ use fontdock::FaceId;
 use tide::content::Content;
 use tide::doc::{Catalog, Page, PageTree, Resource, Text};
 use tide::font::{
-    CIDFont, CIDFontType, CIDSystemInfo, CMap, CMapEncoding, FontDescriptor,
-    FontFlags, FontStream, GlyphUnit, Type0Font, WidthRecord,
+    CIDFont, CIDFontType, CIDSystemInfo, CMap, CMapEncoding, FontDescriptor, FontFlags,
+    FontStream, GlyphUnit, Type0Font, WidthRecord,
 };
 use tide::{PdfWriter, Rect, Ref, Trailer, Version};
 use ttf_parser::{name_id, GlyphId};
@@ -89,20 +89,18 @@ impl<'a, W: Write> PdfExporter<'a, W> {
 
     fn write_preface(&mut self) -> io::Result<()> {
         // The document catalog.
-        self.writer.write_obj(self.offsets.catalog, &Catalog::new(self.offsets.page_tree))?;
+        self.writer
+            .write_obj(self.offsets.catalog, &Catalog::new(self.offsets.page_tree))?;
 
         // The font resources.
         let start = self.offsets.fonts.0;
-        let fonts = (0..self.to_pdf.len() as u32).map(|i| {
-            Resource::Font(i + 1, start + (NUM_OBJECTS_PER_FONT * i))
-        });
+        let fonts = (0 .. self.to_pdf.len() as u32)
+            .map(|i| Resource::Font(i + 1, start + (NUM_OBJECTS_PER_FONT * i)));
 
         // The root page tree.
         self.writer.write_obj(
             self.offsets.page_tree,
-            PageTree::new()
-                .kids(ids(self.offsets.pages))
-                .resources(fonts),
+            PageTree::new().kids(ids(self.offsets.pages)).resources(fonts),
         )?;
 
         // The page objects (non-root nodes in the page tree).
@@ -119,9 +117,7 @@ impl<'a, W: Write> PdfExporter<'a, W> {
 
             self.writer.write_obj(
                 page_id,
-                Page::new(self.offsets.page_tree)
-                    .media_box(rect)
-                    .content(content_id),
+                Page::new(self.offsets.page_tree).media_box(rect).content(content_id),
             )?;
         }
 
@@ -151,7 +147,7 @@ impl<'a, W: Write> PdfExporter<'a, W> {
                         size = shaped.size;
                         text.tf(
                             self.to_pdf[&shaped.face] as u32 + 1,
-                            Length::raw(size).as_pt() as f32
+                            Length::raw(size).as_pt() as f32,
                         );
                     }
 
@@ -178,8 +174,7 @@ impl<'a, W: Write> PdfExporter<'a, W> {
             let name = face
                 .names()
                 .find(|entry| {
-                    entry.name_id() == name_id::POST_SCRIPT_NAME
-                    && entry.is_unicode()
+                    entry.name_id() == name_id::POST_SCRIPT_NAME && entry.is_unicode()
                 })
                 .map(|entry| entry.to_string())
                 .flatten()
@@ -190,9 +185,8 @@ impl<'a, W: Write> PdfExporter<'a, W> {
 
             let units_per_em = face.units_per_em().unwrap_or(1000) as f64;
             let ratio = 1.0 / units_per_em;
-            let to_glyph_unit = |font_unit: f64| {
-                (1000.0 * ratio * font_unit).round() as GlyphUnit
-            };
+            let to_glyph_unit =
+                |font_unit: f64| (1000.0 * ratio * font_unit).round() as GlyphUnit;
 
             let global_bbox = face.global_bounding_box();
             let bbox = Rect::new(
@@ -218,7 +212,7 @@ impl<'a, W: Write> PdfExporter<'a, W> {
             flags.insert(FontFlags::SMALL_CAP);
 
             let num_glyphs = face.number_of_glyphs();
-            let widths: Vec<_> = (0..num_glyphs)
+            let widths: Vec<_> = (0 .. num_glyphs)
                 .map(|g| face.glyph_hor_advance(GlyphId(g)).unwrap_or(0))
                 .map(|w| to_glyph_unit(w as f64))
                 .collect();
@@ -258,23 +252,21 @@ impl<'a, W: Write> PdfExporter<'a, W> {
             )?;
 
             // Write the font descriptor (contains metrics about the font).
-            self.writer.write_obj(id + 2,
+            self.writer.write_obj(
+                id + 2,
                 FontDescriptor::new(base_font, flags, italic_angle)
                     .font_bbox(bbox)
                     .ascent(to_glyph_unit(ascender as f64))
                     .descent(to_glyph_unit(descender as f64))
                     .cap_height(to_glyph_unit(cap_height as f64))
                     .stem_v(stem_v as GlyphUnit)
-                    .font_file_2(id + 4)
+                    .font_file_2(id + 4),
             )?;
 
             // Write the CMap, which maps glyph ids back to unicode codepoints
             // to enable copying out of the PDF.
-            self.writer.write_obj(id + 3, &CMap::new(
-                "Custom",
-                system_info,
-                mapping,
-            ))?;
+            self.writer
+                .write_obj(id + 3, &CMap::new("Custom", system_info, mapping))?;
 
             // Write the face's bytes.
             self.writer.write_obj(id + 4, &FontStream::new(face.data()))?;
@@ -328,5 +320,5 @@ fn calculate_offsets(layout_count: usize, font_count: usize) -> Offsets {
 }
 
 fn ids((start, end): (Ref, Ref)) -> impl Iterator<Item = Ref> {
-    start..=end
+    start ..= end
 }
diff --git a/src/font.rs b/src/font.rs
index c37c913e..1e34ac05 100644
--- a/src/font.rs
+++ b/src/font.rs
@@ -30,9 +30,8 @@ impl FaceFromVec for OwnedFace {
     fn from_vec(vec: Vec<u8>, i: u32) -> Option<Self> {
         // The vec's location is stable in memory since we don't touch it and
         // it can't be touched from outside this type.
-        let slice: &'static [u8] = unsafe {
-            std::slice::from_raw_parts(vec.as_ptr(), vec.len())
-        };
+        let slice: &'static [u8] =
+            unsafe { std::slice::from_raw_parts(vec.as_ptr(), vec.len()) };
 
         Some(Self {
             data: vec,
diff --git a/src/geom.rs b/src/geom.rs
index 77b1ec11..92595115 100644
--- a/src/geom.rs
+++ b/src/geom.rs
@@ -21,12 +21,18 @@ impl<T: Clone> Value2<T> {
     }
 
     /// Create a new 2D-value with `x` set to a value and `y` to default.
-    pub fn with_x(x: T) -> Self where T: Default {
+    pub fn with_x(x: T) -> Self
+    where
+        T: Default,
+    {
         Self { x, y: T::default() }
     }
 
     /// Create a new 2D-value with `y` set to a value and `x` to default.
-    pub fn with_y(y: T) -> Self where T: Default {
+    pub fn with_y(y: T) -> Self
+    where
+        T: Default,
+    {
         Self { x: T::default(), y }
     }
 
@@ -53,22 +59,38 @@ impl<T: Clone> Value2<T> {
 
     /// Return the primary value of this specialized 2D-value.
     pub fn primary(self, axes: LayoutAxes) -> T {
-        if axes.primary.axis() == Horizontal { self.x } else { self.y }
+        if axes.primary.axis() == Horizontal {
+            self.x
+        } else {
+            self.y
+        }
     }
 
     /// Borrow the primary value of this specialized 2D-value mutably.
     pub fn primary_mut(&mut self, axes: LayoutAxes) -> &mut T {
-        if axes.primary.axis() == Horizontal { &mut self.x } else { &mut self.y }
+        if axes.primary.axis() == Horizontal {
+            &mut self.x
+        } else {
+            &mut self.y
+        }
     }
 
     /// Return the secondary value of this specialized 2D-value.
     pub fn secondary(self, axes: LayoutAxes) -> T {
-        if axes.primary.axis() == Horizontal { self.y } else { self.x }
+        if axes.primary.axis() == Horizontal {
+            self.y
+        } else {
+            self.x
+        }
     }
 
     /// Borrow the secondary value of this specialized 2D-value mutably.
     pub fn secondary_mut(&mut self, axes: LayoutAxes) -> &mut T {
-        if axes.primary.axis() == Horizontal { &mut self.y } else { &mut self.x }
+        if axes.primary.axis() == Horizontal {
+            &mut self.y
+        } else {
+            &mut self.x
+        }
     }
 
     /// Returns the generalized version of a `Size2D` dependent on the layouting
@@ -98,10 +120,7 @@ impl<T: Clone> Value2<T> {
 
 impl<T: Debug> Debug for Value2<T> {
     fn fmt(&self, f: &mut Formatter) -> fmt::Result {
-        f.debug_list()
-            .entry(&self.x)
-            .entry(&self.y)
-            .finish()
+        f.debug_list().entry(&self.x).entry(&self.y).finish()
     }
 }
 
@@ -159,10 +178,7 @@ impl Neg for Size {
     type Output = Size;
 
     fn neg(self) -> Size {
-        Size {
-            x: -self.x,
-            y: -self.y,
-        }
+        Size { x: -self.x, y: -self.y }
     }
 }
 
diff --git a/src/layout/line.rs b/src/layout/line.rs
index 069a4e56..26b3d6a4 100644
--- a/src/layout/line.rs
+++ b/src/layout/line.rs
@@ -246,9 +246,7 @@ impl LineLayouter {
         for (offset, layout) in layouts {
             let x = match self.ctx.axes.primary.is_positive() {
                 true => offset,
-                false => self.run.size.x
-                    - offset
-                    - layout.size.primary(self.ctx.axes),
+                false => self.run.size.x - offset - layout.size.primary(self.ctx.axes),
             };
 
             let pos = Size::with_x(x);
@@ -258,7 +256,7 @@ impl LineLayouter {
         self.stack.add(BoxLayout {
             size: self.run.size.specialized(self.ctx.axes),
             align: self.run.align.unwrap_or(LayoutAlign::new(Start, Start)),
-            elements
+            elements,
         });
 
         self.run = LineRun::new();
diff --git a/src/layout/mod.rs b/src/layout/mod.rs
index efb2f169..853a66ec 100644
--- a/src/layout/mod.rs
+++ b/src/layout/mod.rs
@@ -10,7 +10,7 @@ mod tree;
 /// Basic types used across the layouting engine.
 pub mod prelude {
     pub use super::primitive::*;
-    pub use super::{BoxLayout, layout, LayoutContext, LayoutSpace, MultiLayout};
+    pub use super::{layout, BoxLayout, LayoutContext, LayoutSpace, MultiLayout};
     pub use Dir::*;
     pub use GenAlign::*;
     pub use GenAxis::*;
diff --git a/src/layout/primitive.rs b/src/layout/primitive.rs
index 1d79f530..6b5df7db 100644
--- a/src/layout/primitive.rs
+++ b/src/layout/primitive.rs
@@ -140,7 +140,11 @@ pub enum SpecAxis {
 impl SpecAxis {
     /// The generic version of this axis in the given system of axes.
     pub fn to_generic(self, axes: LayoutAxes) -> GenAxis {
-        if self == axes.primary.axis() { Primary } else { Secondary }
+        if self == axes.primary.axis() {
+            Primary
+        } else {
+            Secondary
+        }
     }
 }
 
@@ -240,7 +244,11 @@ impl SpecAlign {
     pub fn to_generic(self, axes: LayoutAxes) -> GenAlign {
         let get = |spec: SpecAxis, align: GenAlign| {
             let axis = spec.to_generic(axes);
-            if axes.get(axis).is_positive() { align } else { align.inv() }
+            if axes.get(axis).is_positive() {
+                align
+            } else {
+                align.inv()
+            }
         };
 
         match self {
diff --git a/src/layout/stack.rs b/src/layout/stack.rs
index 62f2c976..73e246e2 100644
--- a/src/layout/stack.rs
+++ b/src/layout/stack.rs
@@ -19,8 +19,8 @@
 //! The position of the first aligned box thus depends on the length of the
 //! sentence in the second box.
 
-use crate::geom::Value4;
 use super::*;
+use crate::geom::Value4;
 
 /// Performs the stack layouting.
 pub struct StackLayouter {
@@ -130,14 +130,11 @@ impl StackLayouter {
                 let size = Size::with_y(spacing);
 
                 self.update_metrics(size);
-                self.space.layouts.push((
-                    self.ctx.axes,
-                    BoxLayout {
-                        size: size.specialized(self.ctx.axes),
-                        align: LayoutAlign::new(Start, Start),
-                        elements: LayoutElements::new(),
-                    }
-                ));
+                self.space.layouts.push((self.ctx.axes, BoxLayout {
+                    size: size.specialized(self.ctx.axes),
+                    align: LayoutAlign::new(Start, Start),
+                    elements: LayoutElements::new(),
+                }));
 
                 self.space.last_spacing = LastSpacing::Hard;
             }
@@ -179,8 +176,7 @@ impl StackLayouter {
     fn update_rulers(&mut self, align: LayoutAlign) -> bool {
         let allowed = self.is_fitting_alignment(align);
         if allowed {
-            *self.space.rulers.get_mut(self.ctx.axes.secondary, Start) =
-                align.secondary;
+            *self.space.rulers.get_mut(self.ctx.axes.secondary, Start) = align.secondary;
         }
         allowed
     }
@@ -226,7 +222,7 @@ impl StackLayouter {
     /// if no space is capable of that.
     pub fn skip_to_fitting_space(&mut self, size: Size) {
         let start = self.next_space();
-        for (index, space) in self.ctx.spaces[start..].iter().enumerate() {
+        for (index, space) in self.ctx.spaces[start ..].iter().enumerate() {
             if space.usable().fits(size) {
                 self.finish_space(true);
                 self.start_space(start + index, true);
@@ -246,7 +242,7 @@ impl StackLayouter {
             expansion: LayoutExpansion::new(false, false),
         }];
 
-        for space in &self.ctx.spaces[self.next_space()..] {
+        for space in &self.ctx.spaces[self.next_space() ..] {
             spaces.push(space.inner());
         }
 
@@ -288,8 +284,12 @@ impl StackLayouter {
         //  expand if necessary.)
 
         let usable = space.usable();
-        if space.expansion.horizontal { self.space.size.x = usable.x; }
-        if space.expansion.vertical   { self.space.size.y = usable.y; }
+        if space.expansion.horizontal {
+            self.space.size.x = usable.x;
+        }
+        if space.expansion.vertical {
+            self.space.size.y = usable.y;
+        }
 
         let size = self.space.size.padded(space.padding);
 
@@ -347,8 +347,7 @@ impl StackLayouter {
             // We reduce the bounding box of this layout at it's end by the
             // accumulated secondary extent of all layouts we have seen so far,
             // which are the layouts after this one since we iterate reversed.
-            *bound.get_mut(axes.secondary, End) -=
-                axes.secondary.factor() * extent.y;
+            *bound.get_mut(axes.secondary, End) -= axes.secondary.factor() * extent.y;
 
             // Then, we add this layout's secondary extent to the accumulator.
             let size = layout.size.generalized(*axes);
@@ -369,9 +368,8 @@ impl StackLayouter {
 
             // The space in which this layout is aligned is given by the
             // distances between the borders of it's bounding box.
-            let usable =
-                Size::new(bound.right - bound.left, bound.bottom - bound.top)
-                    .generalized(axes);
+            let usable = Size::new(bound.right - bound.left, bound.bottom - bound.top)
+                .generalized(axes);
 
             let local = usable.anchor(align, axes) - size.anchor(align, axes);
             let pos = Size::new(bound.left, bound.top) + local.specialized(axes);
@@ -379,11 +377,7 @@ impl StackLayouter {
             elements.extend_offset(pos, layout.elements);
         }
 
-        self.layouts.push(BoxLayout {
-            size,
-            align: self.ctx.align,
-            elements,
-        });
+        self.layouts.push(BoxLayout { size, align: self.ctx.align, elements });
 
         // ------------------------------------------------------------------ //
         // Step 5: Start the next space.
diff --git a/src/layout/text.rs b/src/layout/text.rs
index c1f1f1e7..a43437b1 100644
--- a/src/layout/text.rs
+++ b/src/layout/text.rs
@@ -7,11 +7,11 @@
 use fontdock::{FaceId, FaceQuery, FontStyle};
 use ttf_parser::GlyphId;
 
+use super::elements::{LayoutElement, Shaped};
+use super::*;
 use crate::font::SharedFontLoader;
 use crate::geom::Size;
 use crate::style::TextStyle;
-use super::elements::{LayoutElement, Shaped};
-use super::*;
 
 /// Layouts text into a box.
 pub async fn layout_text(text: &str, ctx: TextContext<'_>) -> BoxLayout {
diff --git a/src/layout/tree.rs b/src/layout/tree.rs
index 16a2930a..aa0e0df1 100644
--- a/src/layout/tree.rs
+++ b/src/layout/tree.rs
@@ -1,19 +1,16 @@
 //! Layouting of syntax trees.
 
+use super::line::{LineContext, LineLayouter};
+use super::text::{layout_text, TextContext};
+use super::*;
 use crate::style::LayoutStyle;
 use crate::syntax::decoration::Decoration;
 use crate::syntax::span::{Span, Spanned};
-use crate::syntax::tree::{CallExpr, SyntaxNode, SyntaxTree, Code};
+use crate::syntax::tree::{CallExpr, Code, SyntaxNode, SyntaxTree};
 use crate::{DynFuture, Feedback, Pass};
-use super::line::{LineContext, LineLayouter};
-use super::text::{layout_text, TextContext};
-use super::*;
 
 /// Layout a syntax tree into a collection of boxes.
-pub async fn layout_tree(
-    tree: &SyntaxTree,
-    ctx: LayoutContext<'_>,
-) -> Pass<MultiLayout> {
+pub async fn layout_tree(tree: &SyntaxTree, ctx: LayoutContext<'_>) -> Pass<MultiLayout> {
     let mut layouter = TreeLayouter::new(ctx);
     layouter.layout_tree(tree).await;
     layouter.finish()
@@ -75,8 +72,12 @@ impl<'a> TreeLayouter<'a> {
             }
 
             SyntaxNode::Text(text) => {
-                if self.style.text.italic { decorate(self, Decoration::Italic); }
-                if self.style.text.bolder { decorate(self, Decoration::Bold); }
+                if self.style.text.italic {
+                    decorate(self, Decoration::Italic);
+                }
+                if self.style.text.bolder {
+                    decorate(self, Decoration::Bold);
+                }
                 self.layout_text(text).await;
             }
 
@@ -90,10 +91,8 @@ impl<'a> TreeLayouter<'a> {
     }
 
     fn layout_space(&mut self) {
-        self.layouter.add_primary_spacing(
-            self.style.text.word_spacing(),
-            SpacingKind::WORD,
-        );
+        self.layouter
+            .add_primary_spacing(self.style.text.word_spacing(), SpacingKind::WORD);
     }
 
     fn layout_parbreak(&mut self) {
@@ -105,24 +104,20 @@ impl<'a> TreeLayouter<'a> {
 
     async fn layout_text(&mut self, text: &str) {
         self.layouter.add(
-            layout_text(
-                text,
-                TextContext {
-                    loader: &self.ctx.loader,
-                    style: &self.style.text,
-                    dir: self.ctx.axes.primary,
-                    align: self.ctx.align,
-                }
-            ).await
+            layout_text(text, TextContext {
+                loader: &self.ctx.loader,
+                style: &self.style.text,
+                dir: self.ctx.axes.primary,
+                align: self.ctx.align,
+            })
+            .await,
         );
     }
 
     async fn layout_raw(&mut self, lines: &[String]) {
         // TODO: Make this more efficient.
         let fallback = self.style.text.fallback.clone();
-        self.style.text.fallback
-            .list_mut()
-            .insert(0, "monospace".to_string());
+        self.style.text.fallback.list_mut().insert(0, "monospace".to_string());
         self.style.text.fallback.flatten();
 
         let mut first = true;
@@ -176,7 +171,7 @@ impl<'a> TreeLayouter<'a> {
             AddSpacing(space, kind, axis) => match axis {
                 Primary => self.layouter.add_primary_spacing(space, kind),
                 Secondary => self.layouter.add_secondary_spacing(space, kind),
-            }
+            },
 
             BreakLine => self.layouter.finish_line(),
             BreakPage => {
@@ -203,13 +198,14 @@ impl<'a> TreeLayouter<'a> {
                     // new page style and update it within the layouter.
                     let margins = style.margins();
                     self.ctx.base = style.size.unpadded(margins);
-                    self.layouter.set_spaces(vec![
-                        LayoutSpace {
+                    self.layouter.set_spaces(
+                        vec![LayoutSpace {
                             size: style.size,
                             padding: margins,
                             expansion: LayoutExpansion::new(true, true),
-                        }
-                    ], true);
+                        }],
+                        true,
+                    );
                 } else {
                     error!(
                         @self.feedback, span,
diff --git a/src/length.rs b/src/length.rs
index 5634da19..fb62763e 100644
--- a/src/length.rs
+++ b/src/length.rs
@@ -150,7 +150,7 @@ impl FromStr for Length {
         // have valid ASCII chars as subbytes.
         let split = len - 2;
         let bytes = src.as_bytes();
-        let unit = match &bytes[split..] {
+        let unit = match &bytes[split ..] {
             b"pt" => Unit::Pt,
             b"mm" => Unit::Mm,
             b"cm" => Unit::Cm,
@@ -158,7 +158,7 @@ impl FromStr for Length {
             _ => return Err(ParseLengthError),
         };
 
-        src[..split]
+        src[.. split]
             .parse::<f64>()
             .map(|val| Self::new(val, unit))
             .map_err(|_| ParseLengthError)
diff --git a/src/lib.rs b/src/lib.rs
index 30196034..1436dae1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -95,24 +95,22 @@ impl Typesetter {
         use crate::layout::prelude::*;
 
         let margins = self.style.page.margins();
-        layout(
-            &tree,
-            LayoutContext {
-                loader: &self.loader,
-                scope: &self.std,
-                style: &self.style,
-                base: self.style.page.size.unpadded(margins),
-                spaces: vec![LayoutSpace {
-                    size: self.style.page.size,
-                    padding: margins,
-                    expansion: LayoutExpansion::new(true, true),
-                }],
-                repeat: true,
-                axes: LayoutAxes::new(LTR, TTB),
-                align: LayoutAlign::new(Start, Start),
-                root: true,
-            },
-        ).await
+        layout(&tree, LayoutContext {
+            loader: &self.loader,
+            scope: &self.std,
+            style: &self.style,
+            base: self.style.page.size.unpadded(margins),
+            spaces: vec![LayoutSpace {
+                size: self.style.page.size,
+                padding: margins,
+                expansion: LayoutExpansion::new(true, true),
+            }],
+            repeat: true,
+            axes: LayoutAxes::new(LTR, TTB),
+            align: LayoutAlign::new(Start, Start),
+            root: true,
+        })
+        .await
     }
 
     /// Process source code directly into a collection of layouts.
@@ -177,10 +175,7 @@ pub struct Feedback {
 impl Feedback {
     /// Create a new feedback instance without errors and decos.
     pub fn new() -> Self {
-        Self {
-            diagnostics: vec![],
-            decorations: vec![],
-        }
+        Self { diagnostics: vec![], decorations: vec![] }
     }
 
     /// Merged two feedbacks into one.
diff --git a/src/library/boxed.rs b/src/library/boxed.rs
index 5c727bb6..5d98760f 100644
--- a/src/library/boxed.rs
+++ b/src/library/boxed.rs
@@ -1,12 +1,16 @@
-use crate::length::ScaleLength;
 use super::*;
+use crate::length::ScaleLength;
 
 /// `box`: Layouts its contents into a box.
 ///
 /// # Keyword arguments
 /// - `width`: The width of the box (length of relative to parent's width).
 /// - `height`: The height of the box (length of relative to parent's height).
-pub async fn boxed(_: Span, mut args: TableValue, mut ctx: LayoutContext<'_>) -> Pass<Value> {
+pub async fn boxed(
+    _: Span,
+    mut args: TableValue,
+    mut ctx: LayoutContext<'_>,
+) -> Pass<Value> {
     let mut f = Feedback::new();
 
     let content = args.take::<SyntaxTree>().unwrap_or(SyntaxTree::new());
diff --git a/src/library/color.rs b/src/library/color.rs
index 12bebdc9..0d7e8535 100644
--- a/src/library/color.rs
+++ b/src/library/color.rs
@@ -1,5 +1,5 @@
-use crate::color::RgbaColor;
 use super::*;
+use crate::color::RgbaColor;
 
 /// `rgb`: Create an RGB(A) color.
 pub async fn rgb(span: Span, mut args: TableValue, _: LayoutContext<'_>) -> Pass<Value> {
@@ -11,20 +11,17 @@ pub async fn rgb(span: Span, mut args: TableValue, _: LayoutContext<'_>) -> Pass
     let a = args.take::<Spanned<f64>>();
 
     let mut clamp = |component: Option<Spanned<f64>>, default| {
-        component.map(|c| {
-            if c.v < 0.0 || c.v > 255.0 {
-                error!(@f, c.span, "should be between 0 and 255")
-            }
-            c.v.min(255.0).max(0.0).round() as u8
-        }).unwrap_or(default)
+        component
+            .map(|c| {
+                if c.v < 0.0 || c.v > 255.0 {
+                    error!(@f, c.span, "should be between 0 and 255")
+                }
+                c.v.min(255.0).max(0.0).round() as u8
+            })
+            .unwrap_or(default)
     };
 
-    let color = RgbaColor::new(
-        clamp(r, 0),
-        clamp(g, 0),
-        clamp(b, 0),
-        clamp(a, 255),
-    );
+    let color = RgbaColor::new(clamp(r, 0), clamp(g, 0), clamp(b, 0), clamp(a, 255));
 
     args.unexpected(&mut f);
     Pass::new(Value::Color(color), f)
diff --git a/src/library/font.rs b/src/library/font.rs
index ae059512..e3caeded 100644
--- a/src/library/font.rs
+++ b/src/library/font.rs
@@ -1,7 +1,7 @@
 use fontdock::{FontStyle, FontWeight, FontWidth};
 
-use crate::length::ScaleLength;
 use super::*;
+use crate::length::ScaleLength;
 
 /// `font`: Configure the font.
 ///
@@ -35,7 +35,8 @@ pub async fn font(_: Span, mut args: TableValue, ctx: LayoutContext<'_>) -> Pass
         }
     }
 
-    let list: Vec<_> = args.take_all_num_vals::<StringLike>()
+    let list: Vec<_> = args
+        .take_all_num_vals::<StringLike>()
         .map(|s| s.to_lowercase())
         .collect();
 
@@ -57,7 +58,8 @@ pub async fn font(_: Span, mut args: TableValue, ctx: LayoutContext<'_>) -> Pass
     }
 
     for (class, mut table) in args.take_all_str::<TableValue>() {
-        let fallback = table.take_all_num_vals::<StringLike>()
+        let fallback = table
+            .take_all_num_vals::<StringLike>()
             .map(|s| s.to_lowercase())
             .collect();
 
diff --git a/src/library/page.rs b/src/library/page.rs
index f6f9c1c8..ee551064 100644
--- a/src/library/page.rs
+++ b/src/library/page.rs
@@ -1,6 +1,6 @@
+use super::*;
 use crate::length::{Length, ScaleLength};
 use crate::paper::{Paper, PaperClass};
-use super::*;
 
 /// `page`: Configure pages.
 ///
diff --git a/src/library/spacing.rs b/src/library/spacing.rs
index 91049db8..8b2f1622 100644
--- a/src/library/spacing.rs
+++ b/src/library/spacing.rs
@@ -1,6 +1,6 @@
+use super::*;
 use crate::layout::SpacingKind;
 use crate::length::ScaleLength;
-use super::*;
 
 /// `h`: Add horizontal spacing.
 ///
diff --git a/src/paper.rs b/src/paper.rs
index 97f76703..266f22d1 100644
--- a/src/paper.rs
+++ b/src/paper.rs
@@ -39,19 +39,21 @@ pub enum PaperClass {
 impl PaperClass {
     /// The default margins for this page class.
     pub fn default_margins(self) -> Value4<ScaleLength> {
-        let values = |l, t, r, b| Value4::new(
-            ScaleLength::Scaled(l),
-            ScaleLength::Scaled(t),
-            ScaleLength::Scaled(r),
-            ScaleLength::Scaled(b),
-        );
+        let values = |l, t, r, b| {
+            Value4::new(
+                ScaleLength::Scaled(l),
+                ScaleLength::Scaled(t),
+                ScaleLength::Scaled(r),
+                ScaleLength::Scaled(b),
+            )
+        };
 
         match self {
-            Self::Custom    => values(0.1190, 0.0842, 0.1190, 0.0842),
-            Self::Base      => values(0.1190, 0.0842, 0.1190, 0.0842),
-            Self::US        => values(0.1760, 0.1092, 0.1760, 0.0910),
+            Self::Custom => values(0.1190, 0.0842, 0.1190, 0.0842),
+            Self::Base => values(0.1190, 0.0842, 0.1190, 0.0842),
+            Self::US => values(0.1760, 0.1092, 0.1760, 0.0910),
             Self::Newspaper => values(0.0455, 0.0587, 0.0455, 0.0294),
-            Self::Book      => values(0.1200, 0.0852, 0.1500, 0.0965),
+            Self::Book => values(0.1200, 0.0852, 0.1500, 0.0965),
         }
     }
 }
diff --git a/src/prelude.rs b/src/prelude.rs
index 7dd6be30..aa727e6d 100644
--- a/src/prelude.rs
+++ b/src/prelude.rs
@@ -1,12 +1,12 @@
 //! A prelude for building custom functions.
 
+pub use super::*;
 pub use crate::compute::value::*;
 pub use crate::layout::prelude::*;
-pub use crate::layout::Commands;
 pub use crate::layout::Command::{self, *};
+pub use crate::layout::Commands;
 pub use crate::style::*;
 pub use crate::syntax::parsing::parse;
 pub use crate::syntax::span::{Pos, Span, SpanVec, Spanned};
 pub use crate::syntax::tree::*;
-pub use crate::{Pass, Feedback};
-pub use super::*;
+pub use crate::{Feedback, Pass};
diff --git a/src/style.rs b/src/style.rs
index 2a8b6d87..e964103a 100644
--- a/src/style.rs
+++ b/src/style.rs
@@ -1,8 +1,6 @@
 //! Styles for text and pages.
 
-use fontdock::{
-    fallback, FallbackTree, FontStyle, FontVariant, FontWeight, FontWidth,
-};
+use fontdock::{fallback, FallbackTree, FontStyle, FontVariant, FontWeight, FontWidth};
 
 use crate::geom::{Margins, Size, Value4};
 use crate::length::{Length, ScaleLength};
diff --git a/src/syntax/mod.rs b/src/syntax/mod.rs
index 596291a5..a9fe7c2e 100644
--- a/src/syntax/mod.rs
+++ b/src/syntax/mod.rs
@@ -37,9 +37,9 @@ impl Debug for Ident {
 
 #[cfg(test)]
 mod tests {
-    use std::fmt::Debug;
-    use crate::prelude::*;
     use super::span;
+    use crate::prelude::*;
+    use std::fmt::Debug;
 
     /// Assert that expected and found are equal, printing both and panicking
     /// and the source of their test case if they aren't.
diff --git a/src/syntax/parsing.rs b/src/syntax/parsing.rs
index d2688951..ae9cfdb1 100644
--- a/src/syntax/parsing.rs
+++ b/src/syntax/parsing.rs
@@ -2,16 +2,14 @@
 
 use std::str::FromStr;
 
-use crate::{Feedback, Pass};
-use crate::color::RgbaColor;
-use crate::compute::table::SpannedEntry;
 use super::decoration::Decoration;
 use super::span::{Pos, Span, Spanned};
 use super::tokens::{is_newline_char, Token, TokenMode, Tokens};
-use super::tree::{
-    CallExpr, Expr, SyntaxNode, SyntaxTree, TableExpr, Code,
-};
+use super::tree::{CallExpr, Code, Expr, SyntaxNode, SyntaxTree, TableExpr};
 use super::Ident;
+use crate::color::RgbaColor;
+use crate::compute::table::SpannedEntry;
+use crate::{Feedback, Pass};
 
 /// Parse a string of source code.
 pub fn parse(src: &str) -> Pass<SyntaxTree> {
@@ -106,9 +104,7 @@ impl Parser<'_> {
                     self.with_span(SyntaxNode::Code(Code { lang, lines, block }))
                 }
 
-                Token::Text(text) => {
-                    self.with_span(SyntaxNode::Text(text.to_string()))
-                }
+                Token::Text(text) => self.with_span(SyntaxNode::Text(text.to_string())),
 
                 Token::UnicodeEscape { sequence, terminated } => {
                     if !terminated {
@@ -222,7 +218,10 @@ impl Parser<'_> {
         let mut table = TableExpr::new();
         let mut comma_and_keyless = true;
 
-        while { self.skip_white(); !self.eof() } {
+        while {
+            self.skip_white();
+            !self.eof()
+        } {
             let (key, val) = if let Some(ident) = self.parse_ident() {
                 self.skip_white();
 
@@ -243,7 +242,7 @@ impl Parser<'_> {
                         (None, call.map(Expr::Call))
                     }
 
-                    _ => (None, ident.map(Expr::Ident))
+                    _ => (None, ident.map(Expr::Ident)),
                 }
             } else if let Some(value) = self.parse_expr() {
                 (None, value)
@@ -256,13 +255,17 @@ impl Parser<'_> {
             if let Some(key) = key {
                 comma_and_keyless = false;
                 table.insert(key.v.0, SpannedEntry::new(key.span, val));
-                self.feedback.decorations
+                self.feedback
+                    .decorations
                     .push(Spanned::new(Decoration::TableKey, key.span));
             } else {
                 table.push(SpannedEntry::val(val));
             }
 
-            if { self.skip_white(); self.eof() } {
+            if {
+                self.skip_white();
+                self.eof()
+            } {
                 break;
             }
 
@@ -389,9 +392,7 @@ impl Parser<'_> {
                 let span = self.end_group();
 
                 let expr = if coercable {
-                    table.into_values()
-                        .next()
-                        .expect("table is coercable").val.v
+                    table.into_values().next().expect("table is coercable").val.v
                 } else {
                     Expr::Table(table)
                 };
@@ -479,8 +480,7 @@ impl<'s> Parser<'s> {
     fn end_group(&mut self) -> Span {
         let peeked = self.peek();
 
-        let (start, end_token) = self.delimiters.pop()
-            .expect("group was not started");
+        let (start, end_token) = self.delimiters.pop().expect("group was not started");
 
         if end_token != Token::Chain && peeked != None {
             self.delimiters.push((start, end_token));
@@ -529,11 +529,7 @@ impl<'s> Parser<'s> {
     }
 
     fn check_eat(&mut self, token: Token<'_>) -> Option<Spanned<Token<'s>>> {
-        if self.check(token) {
-            self.eat()
-        } else {
-            None
-        }
+        if self.check(token) { self.eat() } else { None }
     }
 
     /// Checks if the next token is of some kind
@@ -590,8 +586,7 @@ impl Group {
     fn is_delimiter(token: Token<'_>) -> bool {
         matches!(
             token,
-            Token::RightParen | Token::RightBracket
-            | Token::RightBrace | Token::Chain
+            Token::RightParen | Token::RightBracket | Token::RightBrace | Token::Chain
         )
     }
 
@@ -655,7 +650,10 @@ fn unescape_string(string: &str) -> String {
                 }
                 Some('n') => out.push('\n'),
                 Some('t') => out.push('\t'),
-                Some(c) => { out.push('\\'); out.push(c); }
+                Some(c) => {
+                    out.push('\\');
+                    out.push(c);
+                }
                 None => out.push('\\'),
             }
         } else {
@@ -785,22 +783,20 @@ fn split_lines(text: &str) -> Vec<String> {
 #[cfg(test)]
 #[allow(non_snake_case)]
 mod tests {
-    use crate::syntax::tests::*;
-    use crate::length::Length;
     use super::*;
+    use crate::length::Length;
+    use crate::syntax::tests::*;
     use Decoration::*;
 
     // ----------------------- Construct Syntax Nodes ----------------------- //
 
     use SyntaxNode::{
-        Spacing as S,
-        Linebreak as L,
-        Parbreak as P,
-        ToggleItalic as I,
-        ToggleBolder as B,
+        Linebreak as L, Parbreak as P, Spacing as S, ToggleBolder as B, ToggleItalic as I,
     };
 
-    fn T(text: &str) -> SyntaxNode { SyntaxNode::Text(text.to_string()) }
+    fn T(text: &str) -> SyntaxNode {
+        SyntaxNode::Text(text.to_string())
+    }
 
     macro_rules! R {
         ($($line:expr),* $(,)?) => {
@@ -833,10 +829,14 @@ mod tests {
 
     // ------------------------ Construct Expressions ----------------------- //
 
-    use Expr::{Bool, Number as Num, Length as Len, Color};
+    use Expr::{Bool, Color, Length as Len, Number as Num};
 
-    fn Id(ident: &str) -> Expr { Expr::Ident(Ident(ident.to_string())) }
-    fn Str(string: &str) -> Expr { Expr::Str(string.to_string()) }
+    fn Id(ident: &str) -> Expr {
+        Expr::Ident(Ident(ident.to_string()))
+    }
+    fn Str(string: &str) -> Expr {
+        Expr::Str(string.to_string())
+    }
 
     macro_rules! Table {
         (@table=$table:expr,) => {};
diff --git a/src/syntax/tokens.rs b/src/syntax/tokens.rs
index dad13230..d566363c 100644
--- a/src/syntax/tokens.rs
+++ b/src/syntax/tokens.rs
@@ -4,8 +4,8 @@ use std::iter::Peekable;
 use std::str::Chars;
 use unicode_xid::UnicodeXID;
 
-use crate::length::Length;
 use super::span::{Pos, Span, Spanned};
+use crate::length::Length;
 
 use Token::*;
 use TokenMode::*;
@@ -224,7 +224,10 @@ impl<'s> Iterator for Tokens<'s> {
             // Comments.
             '/' if self.peek() == Some('/') => self.read_line_comment(),
             '/' if self.peek() == Some('*') => self.read_block_comment(),
-            '*' if self.peek() == Some('/') => { self.eat(); Invalid("*/") }
+            '*' if self.peek() == Some('/') => {
+                self.eat();
+                Invalid("*/")
+            }
 
             // Whitespace.
             c if c.is_whitespace() => self.read_whitespace(start),
@@ -241,8 +244,7 @@ impl<'s> Iterator for Tokens<'s> {
             ':' if self.mode == Header => Colon,
             ',' if self.mode == Header => Comma,
             '=' if self.mode == Header => Equals,
-            '>' if self.mode == Header && self.peek() == Some('>') =>
-                self.read_chain(),
+            '>' if self.mode == Header && self.peek() == Some('>') => self.read_chain(),
 
             // Expression operators.
             '+' if self.mode == Header => Plus,
@@ -276,10 +278,10 @@ impl<'s> Iterator for Tokens<'s> {
                 let (text, _) = self.read_string_until(false, start_offset, 0, |n| {
                     let val = match n {
                         c if c.is_whitespace() => true,
-                        '['  | ']' | '{' | '}' | '/' | '*' => true,
+                        '[' | ']' | '{' | '}' | '/' | '*' => true,
                         '\\' | '_' | '`' if body => true,
-                        ':'  | '=' | ',' | '"' | '('  | ')' if !body => true,
-                        '+'  | '-' if !body && !last_was_e => true,
+                        ':' | '=' | ',' | '"' | '(' | ')' if !body => true,
+                        '+' | '-' if !body && !last_was_e => true,
                         _ => false,
                     };
 
@@ -309,7 +311,11 @@ impl<'s> Tokens<'s> {
     }
 
     fn read_block_comment(&mut self) -> Token<'s> {
-        enum Last { Slash, Star, Other }
+        enum Last {
+            Slash,
+            Star,
+            Other,
+        }
 
         let mut depth = 0;
         let mut last = Last::Other;
@@ -322,12 +328,12 @@ impl<'s> Tokens<'s> {
                 '/' => match last {
                     Last::Star if depth == 0 => return true,
                     Last::Star => depth -= 1,
-                    _ => last = Last::Slash
-                }
+                    _ => last = Last::Slash,
+                },
                 '*' => match last {
                     Last::Slash => depth += 1,
                     _ => last = Last::Star,
-                }
+                },
                 _ => last = Last::Other,
             }
 
@@ -409,8 +415,8 @@ impl<'s> Tokens<'s> {
 
             Code {
                 lang,
-                raw: &self.src[start..end],
-                terminated
+                raw: &self.src[start .. end],
+                terminated,
             }
         } else {
             Raw { raw, terminated }
@@ -443,9 +449,8 @@ impl<'s> Tokens<'s> {
                 self.eat();
                 if self.peek() == Some('{') {
                     self.eat();
-                    let (sequence, _) = self.read_string_until(false, 0, 0, |c| {
-                        !c.is_ascii_hexdigit()
-                    });
+                    let (sequence, _) =
+                        self.read_string_until(false, 0, 0, |c| !c.is_ascii_hexdigit());
 
                     let terminated = self.peek() == Some('}');
                     if terminated {
@@ -460,7 +465,7 @@ impl<'s> Tokens<'s> {
             Some(c) if is_escapable(c) => {
                 let index = self.index();
                 self.eat();
-                Text(&self.src[index..index + c.len_utf8()])
+                Text(&self.src[index .. index + c.len_utf8()])
             }
             Some(c) if c.is_whitespace() => Backslash,
             Some(_) => Text("\\"),
@@ -522,7 +527,7 @@ impl<'s> Tokens<'s> {
             end = ((end as isize) + offset_end) as usize;
         }
 
-        (&self.src[start..end], matched)
+        (&self.src[start .. end], matched)
     }
 
     fn eat(&mut self) -> Option<char> {
@@ -546,7 +551,7 @@ impl<'s> Tokens<'s> {
 
 fn parse_percentage(text: &str) -> Option<f64> {
     if text.ends_with('%') {
-        text[..text.len() - 1].parse::<f64>().ok()
+        text[.. text.len() - 1].parse::<f64>().ok()
     } else {
         None
     }
@@ -556,7 +561,7 @@ fn parse_percentage(text: &str) -> Option<f64> {
 pub fn is_newline_char(character: char) -> bool {
     match character {
         // Line Feed, Vertical Tab, Form Feed, Carriage Return.
-        '\x0A'..='\x0D' => true,
+        '\x0A' ..= '\x0D' => true,
         // Next Line, Line Separator, Paragraph Separator.
         '\u{0085}' | '\u{2028}' | '\u{2029}' => true,
         _ => false,
@@ -588,35 +593,33 @@ pub fn is_identifier(string: &str) -> bool {
 #[cfg(test)]
 #[allow(non_snake_case)]
 mod tests {
+    use super::super::span::Spanned;
+    use super::*;
     use crate::length::Length;
     use crate::syntax::tests::*;
-    use super::*;
-    use super::super::span::Spanned;
     use Token::{
-        Space as S,
-        LineComment as LC, BlockComment as BC,
-        LeftBracket as L, RightBracket as R,
-        LeftParen as LP, RightParen as RP,
-        LeftBrace as LB, RightBrace as RB,
-        Chain,
-        Ident as Id,
-        Bool,
-        Number as Num,
-        Length as Len,
-        Hex,
-        Plus,
-        Hyphen as Min,
-        Slash,
-        Star,
-        Text as T,
+        BlockComment as BC, Bool, Chain, Hex, Hyphen as Min, Ident as Id,
+        LeftBrace as LB, LeftBracket as L, LeftParen as LP, Length as Len,
+        LineComment as LC, Number as Num, Plus, RightBrace as RB, RightBracket as R,
+        RightParen as RP, Slash, Space as S, Star, Text as T,
     };
 
-    fn Str(string: &str, terminated: bool) -> Token { Token::Str { string, terminated } }
-    fn Raw(raw: &str, terminated: bool) -> Token { Token::Raw { raw, terminated } }
+    fn Str(string: &str, terminated: bool) -> Token {
+        Token::Str { string, terminated }
+    }
+    fn Raw(raw: &str, terminated: bool) -> Token {
+        Token::Raw { raw, terminated }
+    }
     fn Code<'a>(lang: Option<&'a str>, raw: &'a str, terminated: bool) -> Token<'a> {
-        Token::Code { lang: lang.map(Spanned::zero), raw, terminated }
+        Token::Code {
+            lang: lang.map(Spanned::zero),
+            raw,
+            terminated,
+        }
+    }
+    fn UE(sequence: &str, terminated: bool) -> Token {
+        Token::UnicodeEscape { sequence, terminated }
     }
-    fn UE(sequence: &str, terminated: bool) -> Token { Token::UnicodeEscape { sequence, terminated } }
 
     macro_rules! t { ($($tts:tt)*) => {test!(@spans=false, $($tts)*)} }
     macro_rules! ts { ($($tts:tt)*) => {test!(@spans=true, $($tts)*)} }
diff --git a/src/syntax/tree.rs b/src/syntax/tree.rs
index 44acd023..7295ec04 100644
--- a/src/syntax/tree.rs
+++ b/src/syntax/tree.rs
@@ -2,15 +2,15 @@
 
 use std::fmt::{self, Debug, Formatter};
 
+use super::decoration::Decoration;
+use super::span::{SpanVec, Spanned};
+use super::Ident;
 use crate::color::RgbaColor;
 use crate::compute::table::{SpannedEntry, Table};
 use crate::compute::value::{TableValue, Value};
 use crate::layout::LayoutContext;
 use crate::length::Length;
 use crate::{DynFuture, Feedback};
-use super::decoration::Decoration;
-use super::span::{Spanned, SpanVec};
-use super::Ident;
 
 /// A collection of nodes which form a tree together with the nodes' children.
 pub type SyntaxTree = SpanVec<SyntaxNode>;
@@ -96,11 +96,7 @@ impl Expr {
     }
 
     /// Evaluate the expression to a value.
-    pub async fn eval(
-        &self,
-        ctx: &LayoutContext<'_>,
-        f: &mut Feedback,
-    ) -> Value {
+    pub async fn eval(&self, ctx: &LayoutContext<'_>, f: &mut Feedback) -> Value {
         use Expr::*;
         match self {
             Ident(i) => Value::Ident(i.clone()),