More restructuring

16 files changed, 50 insertions, 42 deletions

diff --git a/src/eval/layout.rs b/src/eval/layout.rs
index 02912544..135e5e04 100644
--- a/src/eval/layout.rs
+++ b/src/eval/layout.rs
@@ -9,7 +9,8 @@ use crate::diag::TypResult;
 use crate::eval::StyleChain;
 use crate::frame::{Element, Frame, Geometry, Shape, Stroke};
 use crate::geom::{Align, Length, Linear, Paint, Point, Sides, Size, Spec, Transform};
-use crate::library::layout::{AlignNode, MoveNode, PadNode};
+use crate::library::graphics::MoveNode;
+use crate::library::layout::{AlignNode, PadNode};
 use crate::util::Prehashed;
 use crate::Context;
 
diff --git a/src/eval/mod.rs b/src/eval/mod.rs
index f8b4b0f0..590b8463 100644
--- a/src/eval/mod.rs
+++ b/src/eval/mod.rs
@@ -155,7 +155,7 @@ impl Eval for MathNode {
     type Output = Template;
 
     fn eval(&self, _: &mut Context, _: &mut Scopes) -> EvalResult<Self::Output> {
-        Ok(Template::show(library::elements::MathNode {
+        Ok(Template::show(library::math::MathNode {
             formula: self.formula.clone(),
             display: self.display,
         }))
@@ -166,7 +166,7 @@ impl Eval for HeadingNode {
     type Output = Template;
 
     fn eval(&self, ctx: &mut Context, scp: &mut Scopes) -> EvalResult<Self::Output> {
-        Ok(Template::show(library::elements::HeadingNode {
+        Ok(Template::show(library::structure::HeadingNode {
             body: self.body().eval(ctx, scp)?,
             level: self.level(),
         }))
@@ -177,7 +177,7 @@ impl Eval for ListNode {
     type Output = Template;
 
     fn eval(&self, ctx: &mut Context, scp: &mut Scopes) -> EvalResult<Self::Output> {
-        Ok(Template::List(library::elements::ListItem {
+        Ok(Template::List(library::structure::ListItem {
             number: None,
             body: Box::new(self.body().eval(ctx, scp)?),
         }))
@@ -188,7 +188,7 @@ impl Eval for EnumNode {
     type Output = Template;
 
     fn eval(&self, ctx: &mut Context, scp: &mut Scopes) -> EvalResult<Self::Output> {
-        Ok(Template::Enum(library::elements::ListItem {
+        Ok(Template::Enum(library::structure::ListItem {
             number: self.number(),
             body: Box::new(self.body().eval(ctx, scp)?),
         }))
diff --git a/src/eval/template.rs b/src/eval/template.rs
index 94cc0aff..3e88b6d7 100644
--- a/src/eval/template.rs
+++ b/src/eval/template.rs
@@ -10,9 +10,9 @@ use super::{
     StyleMap, StyleVecBuilder,
 };
 use crate::diag::StrResult;
-use crate::library::elements::{ListItem, ListKind, ListNode, ORDERED, UNORDERED};
 use crate::library::layout::{FlowChild, FlowNode, PageNode, PlaceNode, SpacingKind};
 use crate::library::prelude::*;
+use crate::library::structure::{ListItem, ListKind, ListNode, ORDERED, UNORDERED};
 use crate::library::text::{DecoNode, ParChild, ParNode, TextNode, UNDERLINE};
 use crate::util::EcoString;
 
diff --git a/src/library/elements/mod.rs b/src/library/elements/mod.rs
deleted file mode 100644
index 572010bb..00000000
--- a/src/library/elements/mod.rs
+++ /dev/null
@@ -1,15 +0,0 @@
-//! Primitive and semantic elements.
-
-mod heading;
-mod image;
-mod list;
-mod math;
-mod shape;
-mod table;
-
-pub use self::image::*;
-pub use heading::*;
-pub use list::*;
-pub use math::*;
-pub use shape::*;
-pub use table::*;
diff --git a/src/library/layout/hide.rs b/src/library/graphics/hide.rs
index 861a1208..861a1208 100644
--- a/src/library/layout/hide.rs
+++ b/src/library/graphics/hide.rs
diff --git a/src/library/elements/image.rs b/src/library/graphics/image.rs
index 66fb8f4b..66fb8f4b 100644
--- a/src/library/elements/image.rs
+++ b/src/library/graphics/image.rs
diff --git a/src/library/graphics/mod.rs b/src/library/graphics/mod.rs
new file mode 100644
index 00000000..353f09ca
--- /dev/null
+++ b/src/library/graphics/mod.rs
@@ -0,0 +1,11 @@
+//! Graphical elements and effects.
+
+mod hide;
+mod image;
+mod shape;
+mod transform;
+
+pub use self::image::*;
+pub use hide::*;
+pub use shape::*;
+pub use transform::*;
diff --git a/src/library/elements/shape.rs b/src/library/graphics/shape.rs
index 8b967412..8b967412 100644
--- a/src/library/elements/shape.rs
+++ b/src/library/graphics/shape.rs
diff --git a/src/library/layout/transform.rs b/src/library/graphics/transform.rs
index fafb37a4..fafb37a4 100644
--- a/src/library/layout/transform.rs
+++ b/src/library/graphics/transform.rs
diff --git a/src/library/layout/mod.rs b/src/library/layout/mod.rs
index 944548ab..588b15aa 100644
--- a/src/library/layout/mod.rs
+++ b/src/library/layout/mod.rs
@@ -5,23 +5,19 @@ mod columns;
 mod container;
 mod flow;
 mod grid;
-mod hide;
 mod pad;
 mod page;
 mod place;
 mod spacing;
 mod stack;
-mod transform;
 
 pub use align::*;
 pub use columns::*;
 pub use container::*;
 pub use flow::*;
 pub use grid::*;
-pub use hide::*;
 pub use pad::*;
 pub use page::*;
 pub use place::*;
 pub use spacing::*;
 pub use stack::*;
-pub use transform::*;
diff --git a/src/library/elements/math.rs b/src/library/math/mod.rs
index 761b4480..761b4480 100644
--- a/src/library/elements/math.rs
+++ b/src/library/math/mod.rs
diff --git a/src/library/mod.rs b/src/library/mod.rs
index 4a80ef43..ceb5a557 100644
--- a/src/library/mod.rs
+++ b/src/library/mod.rs
@@ -3,9 +3,11 @@
 //! Call [`new`] to obtain a [`Scope`] containing all standard library
 //! definitions.
 
-pub mod elements;
+pub mod graphics;
 pub mod layout;
+pub mod math;
 pub mod prelude;
+pub mod structure;
 pub mod text;
 pub mod utility;
 
@@ -18,8 +20,8 @@ pub fn new() -> Scope {
     // Text.
     std.def_class::<text::TextNode>("text");
     std.def_class::<text::ParNode>("par");
-    std.def_class::<text::ParbreakNode>("parbreak");
     std.def_class::<text::LinebreakNode>("linebreak");
+    std.def_class::<text::ParbreakNode>("parbreak");
     std.def_class::<text::StrongNode>("strong");
     std.def_class::<text::EmphNode>("emph");
     std.def_class::<text::RawNode>("raw");
@@ -28,17 +30,11 @@ pub fn new() -> Scope {
     std.def_class::<text::OverlineNode>("overline");
     std.def_class::<text::LinkNode>("link");
 
-    // Elements.
-    std.def_class::<elements::MathNode>("math");
-    std.def_class::<elements::HeadingNode>("heading");
-    std.def_class::<elements::ListNode>("list");
-    std.def_class::<elements::EnumNode>("enum");
-    std.def_class::<elements::TableNode>("table");
-    std.def_class::<elements::ImageNode>("image");
-    std.def_class::<elements::RectNode>("rect");
-    std.def_class::<elements::SquareNode>("square");
-    std.def_class::<elements::EllipseNode>("ellipse");
-    std.def_class::<elements::CircleNode>("circle");
+    // Structure.
+    std.def_class::<structure::HeadingNode>("heading");
+    std.def_class::<structure::ListNode>("list");
+    std.def_class::<structure::EnumNode>("enum");
+    std.def_class::<structure::TableNode>("table");
 
     // Layout.
     std.def_class::<layout::PageNode>("page");
@@ -54,10 +50,20 @@ pub fn new() -> Scope {
     std.def_class::<layout::ColumnsNode>("columns");
     std.def_class::<layout::ColbreakNode>("colbreak");
     std.def_class::<layout::PlaceNode>("place");
-    std.def_class::<layout::MoveNode>("move");
-    std.def_class::<layout::ScaleNode>("scale");
-    std.def_class::<layout::RotateNode>("rotate");
-    std.def_class::<layout::HideNode>("hide");
+
+    // Graphics.
+    std.def_class::<graphics::ImageNode>("image");
+    std.def_class::<graphics::RectNode>("rect");
+    std.def_class::<graphics::SquareNode>("square");
+    std.def_class::<graphics::EllipseNode>("ellipse");
+    std.def_class::<graphics::CircleNode>("circle");
+    std.def_class::<graphics::MoveNode>("move");
+    std.def_class::<graphics::ScaleNode>("scale");
+    std.def_class::<graphics::RotateNode>("rotate");
+    std.def_class::<graphics::HideNode>("hide");
+
+    // Math.
+    std.def_class::<math::MathNode>("math");
 
     // Utility functions.
     std.def_func("assert", utility::assert);
diff --git a/src/library/elements/heading.rs b/src/library/structure/heading.rs
index a67f4f24..a67f4f24 100644
--- a/src/library/elements/heading.rs
+++ b/src/library/structure/heading.rs
diff --git a/src/library/elements/list.rs b/src/library/structure/list.rs
index 2c536e2a..2c536e2a 100644
--- a/src/library/elements/list.rs
+++ b/src/library/structure/list.rs
diff --git a/src/library/structure/mod.rs b/src/library/structure/mod.rs
new file mode 100644
index 00000000..073d52e9
--- /dev/null
+++ b/src/library/structure/mod.rs
@@ -0,0 +1,9 @@
+//! Document structuring.
+
+mod heading;
+mod list;
+mod table;
+
+pub use heading::*;
+pub use list::*;
+pub use table::*;
diff --git a/src/library/elements/table.rs b/src/library/structure/table.rs
index 555dcc44..555dcc44 100644
--- a/src/library/elements/table.rs
+++ b/src/library/structure/table.rs