Consistent block naming

src/eval/capture.rs

@@ -49,6 +49,15 @@ impl<'a> CapturesVisitor<'a> {
             // through the expressions that contain them).
             Some(Expr::Ident(ident)) => self.capture(ident),
 
+            // Blocks and templates create a scope.
+            Some(Expr::Code(_) | Expr::Template(_)) => {
+                self.internal.enter();
+                for child in node.children() {
+                    self.visit(child);
+                }
+                self.internal.exit();
+            }
+
             // A closure contains parameter bindings, which are bound before the
             // body is evaluated. Care must be taken so that the default values
             // of named parameters cannot access previous parameter bindings.
@@ -103,15 +112,6 @@ impl<'a> CapturesVisitor<'a> {
                 }
             }
 
-            // Blocks and templates create a scope.
-            Some(Expr::Block(_) | Expr::Template(_)) => {
-                self.internal.enter();
-                for child in node.children() {
-                    self.visit(child);
-                }
-                self.internal.exit();
-            }
-
             // Everything else is traversed from left to right.
             _ => {
                 for child in node.children() {

src/eval/mod.rs

@@ -202,11 +202,11 @@ impl Eval for Expr {
         match self {
             Self::Lit(v) => v.eval(ctx, scp),
             Self::Ident(v) => v.eval(ctx, scp),
+            Self::Code(v) => v.eval(ctx, scp),
+            Self::Template(v) => v.eval(ctx, scp).map(Value::Template),
             Self::Array(v) => v.eval(ctx, scp).map(Value::Array),
             Self::Dict(v) => v.eval(ctx, scp).map(Value::Dict),
-            Self::Template(v) => v.eval(ctx, scp).map(Value::Template),
             Self::Group(v) => v.eval(ctx, scp),
-            Self::Block(v) => v.eval(ctx, scp),
             Self::Call(v) => v.eval(ctx, scp),
             Self::Closure(v) => v.eval(ctx, scp),
             Self::With(v) => v.eval(ctx, scp),
@@ -260,25 +260,23 @@ impl Eval for Ident {
     }
 }
 
-impl Eval for ArrayExpr {
+impl Eval for CodeBlock {
-    type Output = Array;
+    type Output = Value;
 
     fn eval(&self, ctx: &mut Context, scp: &mut Scopes) -> EvalResult<Self::Output> {
-        self.items().map(|expr| expr.eval(ctx, scp)).collect()
+        scp.enter();
+
+        let mut output = Value::None;
+        for expr in self.exprs() {
+            output = join_result(output, expr.eval(ctx, scp), expr.span())?;
+        }
+
+        scp.exit();
+        Ok(output)
     }
 }
 
-impl Eval for DictExpr {
+impl Eval for TemplateBlock {
-    type Output = Dict;
-
-    fn eval(&self, ctx: &mut Context, scp: &mut Scopes) -> EvalResult<Self::Output> {
-        self.items()
-            .map(|x| Ok((x.name().take(), x.expr().eval(ctx, scp)?)))
-            .collect()
-    }
-}
-
-impl Eval for TemplateExpr {
     type Output = Template;
 
     fn eval(&self, ctx: &mut Context, scp: &mut Scopes) -> EvalResult<Self::Output> {
@@ -297,19 +295,21 @@ impl Eval for GroupExpr {
     }
 }
 
-impl Eval for BlockExpr {
+impl Eval for ArrayExpr {
-    type Output = Value;
+    type Output = Array;
 
     fn eval(&self, ctx: &mut Context, scp: &mut Scopes) -> EvalResult<Self::Output> {
-        scp.enter();
+        self.items().map(|expr| expr.eval(ctx, scp)).collect()
+    }
+}
 
-        let mut output = Value::None;
+impl Eval for DictExpr {
-        for expr in self.exprs() {
+    type Output = Dict;
-            output = join_result(output, expr.eval(ctx, scp), expr.span())?;
-        }
 
-        scp.exit();
+    fn eval(&self, ctx: &mut Context, scp: &mut Scopes) -> EvalResult<Self::Output> {
-        Ok(output)
+        self.items()
+            .map(|x| Ok((x.name().take(), x.expr().eval(ctx, scp)?)))
+            .collect()
     }
 }
 

src/eval/value.rs

@@ -5,7 +5,7 @@ use std::hash::{Hash, Hasher};
 use std::sync::Arc;
 
 use super::{ops, Args, Array, Class, Dict, Func, Layout, Template};
-use crate::diag::StrResult;
+use crate::diag::{with_alternative, StrResult};
 use crate::geom::{Angle, Color, Fractional, Length, Linear, Relative, RgbaColor};
 use crate::syntax::Spanned;
 use crate::util::EcoString;
@@ -533,16 +533,6 @@ impl<T: Cast> Cast for Smart<T> {
     }
 }
 
-/// Transform `expected X, found Y` into `expected X or A, found Y`.
-pub fn with_alternative(msg: String, alt: &str) -> String {
-    let mut parts = msg.split(", found ");
-    if let (Some(a), Some(b)) = (parts.next(), parts.next()) {
-        format!("{} or {}, found {}", a, alt, b)
-    } else {
-        msg
-    }
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;

src/library/math/mod.rs

@@ -1,3 +1,5 @@
+//! Mathematical formulas.
+
 use crate::library::prelude::*;
 
 /// A mathematical formula.

src/library/text/mod.rs

@@ -1,4 +1,4 @@
-//! Text shaping and paragraph layout.
+//! Text handling and paragraph layout.
 
 mod deco;
 mod link;

src/parse/incremental.rs

@@ -136,8 +136,8 @@ impl Reparser<'_> {
 
             let superseded_span = pos.offset .. pos.offset + prev_len;
             let func: Option<ReparseMode> = match child.kind() {
-                NodeKind::Template => Some(ReparseMode::Template),
+                NodeKind::CodeBlock => Some(ReparseMode::Code),
-                NodeKind::Block => Some(ReparseMode::Block),
+                NodeKind::TemplateBlock => Some(ReparseMode::Template),
                 _ => None,
             };
 
@@ -211,7 +211,7 @@ impl Reparser<'_> {
         }
 
         let (newborns, terminated, amount) = match mode {
-            ReparseMode::Block => reparse_block(
+            ReparseMode::Code => reparse_block(
                 &prefix,
                 &self.src[newborn_span.start ..],
                 newborn_span.len(),
@@ -292,9 +292,9 @@ impl SearchState {
 /// Which reparse function to choose for a span of elements.
 #[derive(Clone, Copy, Debug, PartialEq)]
 enum ReparseMode {
-    /// Reparse a code block with its braces.
+    /// Reparse a code block, including its braces.
-    Block,
+    Code,
-    /// Reparse a template, including its square brackets.
+    /// Reparse a template block, including its square brackets.
     Template,
     /// Reparse elements of the markup. The variant carries whether the node is
     /// `at_start` and the minimum indent of the containing markup node.

src/parse/mod.rs

@@ -28,8 +28,57 @@ pub fn parse(src: &str) -> Arc<GreenNode> {
     }
 }
 
-/// Parse some markup without the topmost node. Returns `Some` if all of the
+/// Reparse a code block.
-/// input was consumed.
+///
+/// Returns `Some` if all of the input was consumed.
+pub fn reparse_block(
+    prefix: &str,
+    src: &str,
+    end_pos: usize,
+) -> Option<(Vec<Green>, bool, usize)> {
+    let mut p = Parser::with_prefix(prefix, src, TokenMode::Code);
+    if !p.at(&NodeKind::LeftBrace) {
+        return None;
+    }
+
+    block(&mut p);
+
+    let (mut green, terminated) = p.consume()?;
+    let first = green.remove(0);
+    if first.len() != end_pos {
+        return None;
+    }
+
+    Some((vec![first], terminated, 1))
+}
+
+/// Reparse a template literal.
+///
+/// Returns `Some` if all of the input was consumed.
+pub fn reparse_template(
+    prefix: &str,
+    src: &str,
+    end_pos: usize,
+) -> Option<(Vec<Green>, bool, usize)> {
+    let mut p = Parser::with_prefix(prefix, src, TokenMode::Code);
+    if !p.at(&NodeKind::LeftBracket) {
+        return None;
+    }
+
+    template(&mut p);
+
+    let (mut green, terminated) = p.consume()?;
+    let first = green.remove(0);
+    if first.len() != end_pos {
+        return None;
+    }
+
+    Some((vec![first], terminated, 1))
+}
+
+/// Reparse some markup elements without the topmost node.
+///
+/// Returns `Some` if all of the input was consumed.
 pub fn reparse_markup_elements(
     prefix: &str,
     src: &str,
@@ -100,50 +149,6 @@ pub fn reparse_markup_elements(
     Some((res, terminated, replaced))
 }
 
-/// Parse a template literal. Returns `Some` if all of the input was consumed.
-pub fn reparse_template(
-    prefix: &str,
-    src: &str,
-    end_pos: usize,
-) -> Option<(Vec<Green>, bool, usize)> {
-    let mut p = Parser::with_prefix(prefix, src, TokenMode::Code);
-    if !p.at(&NodeKind::LeftBracket) {
-        return None;
-    }
-
-    template(&mut p);
-
-    let (mut green, terminated) = p.consume()?;
-    let first = green.remove(0);
-    if first.len() != end_pos {
-        return None;
-    }
-
-    Some((vec![first], terminated, 1))
-}
-
-/// Parse a code block. Returns `Some` if all of the input was consumed.
-pub fn reparse_block(
-    prefix: &str,
-    src: &str,
-    end_pos: usize,
-) -> Option<(Vec<Green>, bool, usize)> {
-    let mut p = Parser::with_prefix(prefix, src, TokenMode::Code);
-    if !p.at(&NodeKind::LeftBrace) {
-        return None;
-    }
-
-    block(&mut p);
-
-    let (mut green, terminated) = p.consume()?;
-    let first = green.remove(0);
-    if first.len() != end_pos {
-        return None;
-    }
-
-    Some((vec![first], terminated, 1))
-}
-
 /// Parse markup.
 ///
 /// If `at_start` is true, things like headings that may only appear at the
@@ -201,9 +206,9 @@ fn markup_node(p: &mut Parser, at_start: &mut bool) {
 
         // Text and markup.
         NodeKind::Text(_)
+        | NodeKind::NonBreakingSpace
         | NodeKind::EnDash
         | NodeKind::EmDash
-        | NodeKind::NonBreakingSpace
         | NodeKind::Linebreak
         | NodeKind::Raw(_)
         | NodeKind::Math(_)
@@ -350,7 +355,7 @@ fn expr_prec(p: &mut Parser, atomic: bool, min_prec: usize) -> ParseResult {
             p.eat();
             let prec = op.precedence();
             expr_prec(p, atomic, prec)?;
-            marker.end(p, NodeKind::Unary);
+            marker.end(p, NodeKind::UnaryExpr);
         }
         _ => primary(p, atomic)?,
     };
@@ -388,7 +393,7 @@ fn expr_prec(p: &mut Parser, atomic: bool, min_prec: usize) -> ParseResult {
             Associativity::Right => {}
         }
 
-        marker.perform(p, NodeKind::Binary, |p| expr_prec(p, atomic, prec))?;
+        marker.perform(p, NodeKind::BinaryExpr, |p| expr_prec(p, atomic, prec))?;
     }
 
     Ok(())
@@ -410,7 +415,7 @@ fn primary(p: &mut Parser, atomic: bool) -> ParseResult {
             if !atomic && p.at(&NodeKind::Arrow) {
                 marker.end(p, NodeKind::ClosureParams);
                 p.eat_assert(&NodeKind::Arrow);
-                marker.perform(p, NodeKind::Closure, expr)
+                marker.perform(p, NodeKind::ClosureExpr, expr)
             } else {
                 Ok(())
             }
@@ -418,14 +423,8 @@ fn primary(p: &mut Parser, atomic: bool) -> ParseResult {
 
         // Structures.
         Some(NodeKind::LeftParen) => parenthesized(p, atomic),
-        Some(NodeKind::LeftBracket) => {
+        Some(NodeKind::LeftBrace) => Ok(block(p)),
-            template(p);
+        Some(NodeKind::LeftBracket) => Ok(template(p)),
-            Ok(())
-        }
-        Some(NodeKind::LeftBrace) => {
-            block(p);
-            Ok(())
-        }
 
         // Keywords.
         Some(NodeKind::Let) => let_expr(p),
@@ -478,6 +477,20 @@ fn literal(p: &mut Parser) -> bool {
     }
 }
 
+/// Parse an identifier.
+fn ident(p: &mut Parser) -> ParseResult {
+    match p.peek() {
+        Some(NodeKind::Ident(_)) => {
+            p.eat();
+            Ok(())
+        }
+        _ => {
+            p.expected_found("identifier");
+            Err(ParseError)
+        }
+    }
+}
+
 /// Parse something that starts with a parenthesis, which can be either of:
 /// - Array literal
 /// - Dictionary literal
@@ -501,12 +514,12 @@ fn parenthesized(p: &mut Parser, atomic: bool) -> ParseResult {
     if !atomic && p.at(&NodeKind::Arrow) {
         params(p, marker);
         p.eat_assert(&NodeKind::Arrow);
-        return marker.perform(p, NodeKind::Closure, expr);
+        return marker.perform(p, NodeKind::ClosureExpr, expr);
     }
 
     // Transform into the identified collection.
     match kind {
-        CollectionKind::Group => marker.end(p, NodeKind::Group),
+        CollectionKind::Group => marker.end(p, NodeKind::GroupExpr),
         CollectionKind::Positional => array(p, marker),
         CollectionKind::Named => dict(p, marker),
     }
@@ -614,7 +627,7 @@ fn array(p: &mut Parser, marker: Marker) {
         NodeKind::Spread => Err("spreading is not allowed here"),
         _ => Ok(()),
     });
-    marker.end(p, NodeKind::Array);
+    marker.end(p, NodeKind::ArrayExpr);
 }
 
 /// Convert a collection into a dictionary, producing errors for anything other
@@ -626,7 +639,7 @@ fn dict(p: &mut Parser, marker: Marker) {
         NodeKind::Spread => Err("spreading is not allowed here"),
         _ => Err("expected named pair, found expression"),
     });
-    marker.end(p, NodeKind::Dict);
+    marker.end(p, NodeKind::DictExpr);
 }
 
 /// Convert a collection into a list of parameters, producing errors for
@@ -648,18 +661,9 @@ fn params(p: &mut Parser, marker: Marker) {
     marker.end(p, NodeKind::ClosureParams);
 }
 
-// Parse a template block: `[...]`.
-fn template(p: &mut Parser) {
-    p.perform(NodeKind::Template, |p| {
-        p.start_group(Group::Bracket);
-        markup(p, true);
-        p.end_group();
-    });
-}
-
 /// Parse a code block: `{...}`.
 fn block(p: &mut Parser) {
-    p.perform(NodeKind::Block, |p| {
+    p.perform(NodeKind::CodeBlock, |p| {
         p.start_group(Group::Brace);
         while !p.eof() {
             p.start_group(Group::Expr);
@@ -675,9 +679,18 @@ fn block(p: &mut Parser) {
     });
 }
 
+// Parse a template block: `[...]`.
+fn template(p: &mut Parser) {
+    p.perform(NodeKind::TemplateBlock, |p| {
+        p.start_group(Group::Bracket);
+        markup(p, true);
+        p.end_group();
+    });
+}
+
 /// Parse a function call.
 fn call(p: &mut Parser, callee: Marker) -> ParseResult {
-    callee.perform(p, NodeKind::Call, |p| args(p, true, true))
+    callee.perform(p, NodeKind::CallExpr, |p| args(p, true, true))
 }
 
 /// Parse the arguments to a function call.
@@ -744,7 +757,7 @@ fn let_expr(p: &mut Parser) -> ParseResult {
 
             // Rewrite into a closure expression if it's a function definition.
             if has_params {
-                marker.end(p, NodeKind::Closure);
+                marker.end(p, NodeKind::ClosureExpr);
             }
         }
 
@@ -770,7 +783,7 @@ fn show_expr(p: &mut Parser) -> ParseResult {
             p.expected_found("parameter list");
             return Err(ParseError);
         }
-        p.perform(NodeKind::Closure, |p| {
+        p.perform(NodeKind::ClosureExpr, |p| {
             let marker = p.marker();
             p.start_group(Group::Paren);
             collection(p);
@@ -906,31 +919,16 @@ fn return_expr(p: &mut Parser) -> ParseResult {
     })
 }
 
-/// Parse an identifier.
-fn ident(p: &mut Parser) -> ParseResult {
-    match p.peek() {
-        Some(NodeKind::Ident(_)) => {
-            p.eat();
-            Ok(())
-        }
-        _ => {
-            p.expected_found("identifier");
-            Err(ParseError)
-        }
-    }
-}
-
 /// Parse a control flow body.
 fn body(p: &mut Parser) -> ParseResult {
     match p.peek() {
-        Some(NodeKind::LeftBracket) => template(p),
+        Some(NodeKind::LeftBracket) => Ok(template(p)),
-        Some(NodeKind::LeftBrace) => block(p),
+        Some(NodeKind::LeftBrace) => Ok(block(p)),
         _ => {
             p.expected("body");
-            return Err(ParseError);
+            Err(ParseError)
         }
     }
-    Ok(())
 }
 
 #[cfg(test)]

src/parse/parser.rs

@@ -229,13 +229,13 @@ impl<'s> Parser<'s> {
         self.groups.push(GroupEntry { kind, prev_mode: self.tokens.mode() });
         self.tokens.set_mode(match kind {
             Group::Bracket | Group::Strong | Group::Emph => TokenMode::Markup,
-            Group::Paren | Group::Brace | Group::Expr | Group::Imports => TokenMode::Code,
+            Group::Brace | Group::Paren | Group::Expr | Group::Imports => TokenMode::Code,
         });
 
         match kind {
-            Group::Paren => self.eat_assert(&NodeKind::LeftParen),
-            Group::Bracket => self.eat_assert(&NodeKind::LeftBracket),
             Group::Brace => self.eat_assert(&NodeKind::LeftBrace),
+            Group::Bracket => self.eat_assert(&NodeKind::LeftBracket),
+            Group::Paren => self.eat_assert(&NodeKind::LeftParen),
             Group::Strong => self.eat_assert(&NodeKind::Star),
             Group::Emph => self.eat_assert(&NodeKind::Underscore),
             Group::Expr => self.repeek(),
@@ -321,9 +321,9 @@ impl<'s> Parser<'s> {
     /// group.
     fn repeek(&mut self) {
         self.eof = match &self.current {
-            Some(NodeKind::RightParen) => self.inside(Group::Paren),
-            Some(NodeKind::RightBracket) => self.inside(Group::Bracket),
             Some(NodeKind::RightBrace) => self.inside(Group::Brace),
+            Some(NodeKind::RightBracket) => self.inside(Group::Bracket),
+            Some(NodeKind::RightParen) => self.inside(Group::Paren),
             Some(NodeKind::Star) => self.inside(Group::Strong),
             Some(NodeKind::Underscore) => self.inside(Group::Emph),
             Some(NodeKind::Semicolon) => self.inside(Group::Expr),
@@ -482,10 +482,10 @@ struct GroupEntry {
 /// A group, confined by optional start and end delimiters.
 #[derive(Debug, Copy, Clone, Eq, PartialEq)]
 pub enum Group {
-    /// A bracketed group: `[...]`.
-    Bracket,
     /// A curly-braced group: `{...}`.
     Brace,
+    /// A bracketed group: `[...]`.
+    Bracket,
     /// A parenthesized group: `(...)`.
     Paren,
     /// A group surrounded with stars: `*...*`.

src/parse/tokens.rs

@@ -26,7 +26,7 @@ pub struct Tokens<'s> {
 pub enum TokenMode {
     /// Text and markup.
     Markup,
-    /// Blocks and expressions.
+    /// Keywords, literals and operators.
     Code,
 }
 
@@ -104,11 +104,11 @@ impl<'s> Iterator for Tokens<'s> {
         let start = self.s.index();
         let c = self.s.eat()?;
         Some(match c {
-            // Blocks and templates.
+            // Blocks.
-            '[' => NodeKind::LeftBracket,
-            ']' => NodeKind::RightBracket,
             '{' => NodeKind::LeftBrace,
             '}' => NodeKind::RightBrace,
+            '[' => NodeKind::LeftBracket,
+            ']' => NodeKind::RightBracket,
 
             // Whitespace.
             ' ' if self.s.check_or(true, |c| !c.is_whitespace()) => NodeKind::Space(0),
@@ -741,18 +741,18 @@ mod tests {
     #[test]
     fn test_tokenize_brackets() {
         // Test in markup.
-        t!(Markup: "["       => LeftBracket);
-        t!(Markup: "]"       => RightBracket);
         t!(Markup: "{"       => LeftBrace);
         t!(Markup: "}"       => RightBrace);
+        t!(Markup: "["       => LeftBracket);
+        t!(Markup: "]"       => RightBracket);
         t!(Markup[" /"]: "(" => Text("("));
         t!(Markup[" /"]: ")" => Text(")"));
 
         // Test in code.
-        t!(Code: "[" => LeftBracket);
-        t!(Code: "]" => RightBracket);
         t!(Code: "{" => LeftBrace);
         t!(Code: "}" => RightBrace);
+        t!(Code: "[" => LeftBracket);
+        t!(Code: "]" => RightBracket);
         t!(Code: "(" => LeftParen);
         t!(Code: ")" => RightParen);
     }

src/syntax/ast.rs

@@ -67,9 +67,9 @@ impl Markup {
                 Some(MarkupNode::Text(s.clone()))
             }
             NodeKind::Escape(c) => Some(MarkupNode::Text((*c).into())),
+            NodeKind::NonBreakingSpace => Some(MarkupNode::Text('\u{00A0}'.into())),
             NodeKind::EnDash => Some(MarkupNode::Text('\u{2013}'.into())),
             NodeKind::EmDash => Some(MarkupNode::Text('\u{2014}'.into())),
-            NodeKind::NonBreakingSpace => Some(MarkupNode::Text('\u{00A0}'.into())),
             NodeKind::Strong => node.cast().map(MarkupNode::Strong),
             NodeKind::Emph => node.cast().map(MarkupNode::Emph),
             NodeKind::Raw(raw) => Some(MarkupNode::Raw(raw.as_ref().clone())),
@@ -219,16 +219,16 @@ pub enum Expr {
     Lit(Lit),
     /// An identifier: `left`.
     Ident(Ident),
+    /// A code block: `{ let x = 1; x + 2 }`.
+    Code(CodeBlock),
+    /// A template block: `[*Hi* there!]`.
+    Template(TemplateBlock),
+    /// A grouped expression: `(1 + 2)`.
+    Group(GroupExpr),
     /// An array expression: `(1, "hi", 12cm)`.
     Array(ArrayExpr),
     /// A dictionary expression: `(thickness: 3pt, pattern: dashed)`.
     Dict(DictExpr),
-    /// A template expression: `[*Hi* there!]`.
-    Template(TemplateExpr),
-    /// A grouped expression: `(1 + 2)`.
-    Group(GroupExpr),
-    /// A block expression: `{ let x = 1; x + 2 }`.
-    Block(BlockExpr),
     /// A unary operation: `-x`.
     Unary(UnaryExpr),
     /// A binary operation: `a + b`.
@@ -269,15 +269,15 @@ impl TypedNode for Expr {
     fn from_red(node: RedRef) -> Option<Self> {
         match node.kind() {
             NodeKind::Ident(_) => node.cast().map(Self::Ident),
-            NodeKind::Array => node.cast().map(Self::Array),
+            NodeKind::CodeBlock => node.cast().map(Self::Code),
-            NodeKind::Dict => node.cast().map(Self::Dict),
+            NodeKind::TemplateBlock => node.cast().map(Self::Template),
-            NodeKind::Template => node.cast().map(Self::Template),
+            NodeKind::GroupExpr => node.cast().map(Self::Group),
-            NodeKind::Group => node.cast().map(Self::Group),
+            NodeKind::ArrayExpr => node.cast().map(Self::Array),
-            NodeKind::Block => node.cast().map(Self::Block),
+            NodeKind::DictExpr => node.cast().map(Self::Dict),
-            NodeKind::Unary => node.cast().map(Self::Unary),
+            NodeKind::UnaryExpr => node.cast().map(Self::Unary),
-            NodeKind::Binary => node.cast().map(Self::Binary),
+            NodeKind::BinaryExpr => node.cast().map(Self::Binary),
-            NodeKind::Call => node.cast().map(Self::Call),
+            NodeKind::CallExpr => node.cast().map(Self::Call),
-            NodeKind::Closure => node.cast().map(Self::Closure),
+            NodeKind::ClosureExpr => node.cast().map(Self::Closure),
             NodeKind::WithExpr => node.cast().map(Self::With),
             NodeKind::LetExpr => node.cast().map(Self::Let),
             NodeKind::SetExpr => node.cast().map(Self::Set),
@@ -298,12 +298,12 @@ impl TypedNode for Expr {
     fn as_red(&self) -> RedRef<'_> {
         match self {
             Self::Lit(v) => v.as_red(),
+            Self::Code(v) => v.as_red(),
+            Self::Template(v) => v.as_red(),
             Self::Ident(v) => v.as_red(),
             Self::Array(v) => v.as_red(),
             Self::Dict(v) => v.as_red(),
-            Self::Template(v) => v.as_red(),
             Self::Group(v) => v.as_red(),
-            Self::Block(v) => v.as_red(),
             Self::Unary(v) => v.as_red(),
             Self::Binary(v) => v.as_red(),
             Self::Call(v) => v.as_red(),
@@ -406,9 +406,45 @@ pub enum LitKind {
     Str(EcoString),
 }
 
+node! {
+    /// A code block: `{ let x = 1; x + 2 }`.
+    CodeBlock: CodeBlock
+}
+
+impl CodeBlock {
+    /// The list of expressions contained in the block.
+    pub fn exprs(&self) -> impl Iterator<Item = Expr> + '_ {
+        self.0.children().filter_map(RedRef::cast)
+    }
+}
+
+node! {
+    /// A template block: `[*Hi* there!]`.
+    TemplateBlock: TemplateBlock
+}
+
+impl TemplateBlock {
+    /// The contents of the template.
+    pub fn body(&self) -> Markup {
+        self.0.cast_first_child().expect("template is missing body")
+    }
+}
+
+node! {
+    /// A grouped expression: `(1 + 2)`.
+    GroupExpr: GroupExpr
+}
+
+impl GroupExpr {
+    /// The wrapped expression.
+    pub fn expr(&self) -> Expr {
+        self.0.cast_first_child().expect("group is missing expression")
+    }
+}
+
 node! {
     /// An array expression: `(1, "hi", 12cm)`.
-    ArrayExpr: Array
+    ArrayExpr: ArrayExpr
 }
 
 impl ArrayExpr {
@@ -420,7 +456,7 @@ impl ArrayExpr {
 
 node! {
     /// A dictionary expression: `(thickness: 3pt, pattern: dashed)`.
-    DictExpr: Dict
+    DictExpr: DictExpr
 }
 
 impl DictExpr {
@@ -447,45 +483,9 @@ impl Named {
     }
 }
 
-node! {
-    /// A template expression: `[*Hi* there!]`.
-    TemplateExpr: Template
-}
-
-impl TemplateExpr {
-    /// The contents of the template.
-    pub fn body(&self) -> Markup {
-        self.0.cast_first_child().expect("template is missing body")
-    }
-}
-
-node! {
-    /// A grouped expression: `(1 + 2)`.
-    GroupExpr: Group
-}
-
-impl GroupExpr {
-    /// The wrapped expression.
-    pub fn expr(&self) -> Expr {
-        self.0.cast_first_child().expect("group is missing expression")
-    }
-}
-
-node! {
-    /// A block expression: `{ let x = 1; x + 2 }`.
-    BlockExpr: Block
-}
-
-impl BlockExpr {
-    /// The list of expressions contained in the block.
-    pub fn exprs(&self) -> impl Iterator<Item = Expr> + '_ {
-        self.0.children().filter_map(RedRef::cast)
-    }
-}
-
 node! {
     /// A unary operation: `-x`.
-    UnaryExpr: Unary
+    UnaryExpr: UnaryExpr
 }
 
 impl UnaryExpr {
@@ -545,7 +545,7 @@ impl UnOp {
 
 node! {
     /// A binary operation: `a + b`.
-    BinaryExpr: Binary
+    BinaryExpr: BinaryExpr
 }
 
 impl BinaryExpr {
@@ -717,7 +717,7 @@ pub enum Associativity {
 
 node! {
     /// An invocation of a function: `foo(...)`.
-    CallExpr: Call
+    CallExpr: CallExpr
 }
 
 impl CallExpr {
@@ -786,7 +786,7 @@ impl CallArg {
 
 node! {
     /// A closure expression: `(x, y) => z`.
-    ClosureExpr: Closure
+    ClosureExpr: ClosureExpr
 }
 
 impl ClosureExpr {

src/syntax/highlight.rs

@@ -104,10 +104,10 @@ impl Category {
     /// Determine the highlighting category of a node given its parent.
     pub fn determine(child: RedRef, parent: RedRef) -> Option<Category> {
         match child.kind() {
-            NodeKind::LeftBracket => Some(Category::Bracket),
-            NodeKind::RightBracket => Some(Category::Bracket),
             NodeKind::LeftBrace => Some(Category::Bracket),
             NodeKind::RightBrace => Some(Category::Bracket),
+            NodeKind::LeftBracket => Some(Category::Bracket),
+            NodeKind::RightBracket => Some(Category::Bracket),
             NodeKind::LeftParen => Some(Category::Bracket),
             NodeKind::RightParen => Some(Category::Bracket),
             NodeKind::Comma => Some(Category::Punctuation),
@@ -176,13 +176,13 @@ impl Category {
             NodeKind::Auto => Some(Category::Auto),
             NodeKind::Ident(_) => match parent.kind() {
                 NodeKind::Named => None,
-                NodeKind::Closure if child.span().start == parent.span().start => {
+                NodeKind::ClosureExpr if child.span().start == parent.span().start => {
                     Some(Category::Function)
                 }
                 NodeKind::WithExpr => Some(Category::Function),
                 NodeKind::SetExpr => Some(Category::Function),
                 NodeKind::ShowExpr => Some(Category::Function),
-                NodeKind::Call => Some(Category::Function),
+                NodeKind::CallExpr => Some(Category::Function),
                 _ => Some(Category::Variable),
             },
             NodeKind::Bool(_) => Some(Category::Bool),
@@ -202,18 +202,18 @@ impl Category {
             NodeKind::TextInLine(_) => None,
             NodeKind::List => None,
             NodeKind::Enum => None,
-            NodeKind::Array => None,
+            NodeKind::CodeBlock => None,
-            NodeKind::Dict => None,
+            NodeKind::TemplateBlock => None,
+            NodeKind::GroupExpr => None,
+            NodeKind::ArrayExpr => None,
+            NodeKind::DictExpr => None,
             NodeKind::Named => None,
-            NodeKind::Template => None,
+            NodeKind::UnaryExpr => None,
-            NodeKind::Group => None,
+            NodeKind::BinaryExpr => None,
-            NodeKind::Block => None,
+            NodeKind::CallExpr => None,
-            NodeKind::Unary => None,
-            NodeKind::Binary => None,
-            NodeKind::Call => None,
             NodeKind::CallArgs => None,
             NodeKind::Spread => None,
-            NodeKind::Closure => None,
+            NodeKind::ClosureExpr => None,
             NodeKind::ClosureParams => None,
             NodeKind::WithExpr => None,
             NodeKind::LetExpr => None,

src/syntax/mod.rs

@@ -481,14 +481,14 @@ impl ExactSizeIterator for Children<'_> {}
 /// the parser.
 #[derive(Debug, Clone, PartialEq)]
 pub enum NodeKind {
-    /// A left square bracket: `[`.
-    LeftBracket,
-    /// A right square bracket: `]`.
-    RightBracket,
     /// A left curly brace: `{`.
     LeftBrace,
     /// A right curly brace: `}`.
     RightBrace,
+    /// A left square bracket: `[`.
+    LeftBracket,
+    /// A right square bracket: `]`.
+    RightBracket,
     /// A left round parenthesis: `(`.
     LeftParen,
     /// A right round parenthesis: `)`.
@@ -642,30 +642,30 @@ pub enum NodeKind {
     Fraction(f64),
     /// A quoted string: `"..."`.
     Str(EcoString),
+    /// A code block: `{ let x = 1; x + 2 }`.
+    CodeBlock,
+    /// A template block: `[*Hi* there!]`.
+    TemplateBlock,
+    /// A grouped expression: `(1 + 2)`.
+    GroupExpr,
     /// An array expression: `(1, "hi", 12cm)`.
-    Array,
+    ArrayExpr,
     /// A dictionary expression: `(thickness: 3pt, pattern: dashed)`.
-    Dict,
+    DictExpr,
     /// A named pair: `thickness: 3pt`.
     Named,
-    /// A template expression: `[*Hi* there!]`.
-    Template,
-    /// A grouped expression: `(1 + 2)`.
-    Group,
-    /// A block expression: `{ let x = 1; x + 2 }`.
-    Block,
     /// A unary operation: `-x`.
-    Unary,
+    UnaryExpr,
     /// A binary operation: `a + b`.
-    Binary,
+    BinaryExpr,
     /// An invocation of a function: `f(x, y)`.
-    Call,
+    CallExpr,
     /// A function call's argument list: `(x, y)`.
     CallArgs,
     /// Spreaded arguments or a parameter sink: `..x`.
     Spread,
     /// A closure expression: `(x, y) => z`.
-    Closure,
+    ClosureExpr,
     /// A closure's parameters: `(x, y)`.
     ClosureParams,
     /// A with expression: `f with (x, y: 1)`.
@@ -724,16 +724,16 @@ pub enum ErrorPos {
 }
 
 impl NodeKind {
-    /// Whether this is some kind of bracket.
-    pub fn is_bracket(&self) -> bool {
-        matches!(self, Self::LeftBracket | Self::RightBracket)
-    }
-
     /// Whether this is some kind of brace.
     pub fn is_brace(&self) -> bool {
         matches!(self, Self::LeftBrace | Self::RightBrace)
     }
 
+    /// Whether this is some kind of bracket.
+    pub fn is_bracket(&self) -> bool {
+        matches!(self, Self::LeftBracket | Self::RightBracket)
+    }
+
     /// Whether this is some kind of parenthesis.
     pub fn is_paren(&self) -> bool {
         matches!(self, Self::LeftParen | Self::RightParen)
@@ -782,10 +782,10 @@ impl NodeKind {
             | Self::List
             | Self::Raw(_)
             | Self::Math(_) => Some(TokenMode::Markup),
-            Self::Template
+            Self::TemplateBlock
             | Self::Space(_)
-            | Self::Block
             | Self::Ident(_)
+            | Self::CodeBlock
             | Self::LetExpr
             | Self::SetExpr
             | Self::ShowExpr
@@ -794,7 +794,7 @@ impl NodeKind {
             | Self::WhileExpr
             | Self::ForExpr
             | Self::ImportExpr
-            | Self::Call
+            | Self::CallExpr
             | Self::IncludeExpr
             | Self::LineComment
             | Self::BlockComment
@@ -808,10 +808,10 @@ impl NodeKind {
     /// A human-readable name for the kind.
     pub fn as_str(&self) -> &'static str {
         match self {
-            Self::LeftBracket => "opening bracket",
-            Self::RightBracket => "closing bracket",
             Self::LeftBrace => "opening brace",
             Self::RightBrace => "closing brace",
+            Self::LeftBracket => "opening bracket",
+            Self::RightBracket => "closing bracket",
             Self::LeftParen => "opening paren",
             Self::RightParen => "closing paren",
             Self::Star => "star",
@@ -883,18 +883,18 @@ impl NodeKind {
             Self::Percentage(_) => "percentage",
             Self::Fraction(_) => "`fr` value",
             Self::Str(_) => "string",
-            Self::Array => "array",
+            Self::CodeBlock => "code block",
-            Self::Dict => "dictionary",
+            Self::TemplateBlock => "template block",
+            Self::GroupExpr => "group",
+            Self::ArrayExpr => "array",
+            Self::DictExpr => "dictionary",
             Self::Named => "named argument",
-            Self::Template => "template",
+            Self::UnaryExpr => "unary expression",
-            Self::Group => "group",
+            Self::BinaryExpr => "binary expression",
-            Self::Block => "block",
+            Self::CallExpr => "call",
-            Self::Unary => "unary expression",
-            Self::Binary => "binary expression",
-            Self::Call => "call",
             Self::CallArgs => "call arguments",
             Self::Spread => "parameter sink",
-            Self::Closure => "closure",
+            Self::ClosureExpr => "closure",
             Self::ClosureParams => "closure parameters",
             Self::WithExpr => "`with` expression",
             Self::LetExpr => "`let` expression",
@@ -932,10 +932,10 @@ impl Hash for NodeKind {
     fn hash<H: Hasher>(&self, state: &mut H) {
         std::mem::discriminant(self).hash(state);
         match self {
-            Self::LeftBracket => {}
-            Self::RightBracket => {}
             Self::LeftBrace => {}
             Self::RightBrace => {}
+            Self::LeftBracket => {}
+            Self::RightBracket => {}
             Self::LeftParen => {}
             Self::RightParen => {}
             Self::Star => {}
@@ -1007,18 +1007,18 @@ impl Hash for NodeKind {
             Self::Percentage(v) => v.to_bits().hash(state),
             Self::Fraction(v) => v.to_bits().hash(state),
             Self::Str(v) => v.hash(state),
-            Self::Array => {}
+            Self::CodeBlock => {}
-            Self::Dict => {}
+            Self::TemplateBlock => {}
+            Self::GroupExpr => {}
+            Self::ArrayExpr => {}
+            Self::DictExpr => {}
             Self::Named => {}
-            Self::Template => {}
+            Self::UnaryExpr => {}
-            Self::Group => {}
+            Self::BinaryExpr => {}
-            Self::Block => {}
+            Self::CallExpr => {}
-            Self::Unary => {}
-            Self::Binary => {}
-            Self::Call => {}
             Self::CallArgs => {}
             Self::Spread => {}
-            Self::Closure => {}
+            Self::ClosureExpr => {}
             Self::ClosureParams => {}
             Self::WithExpr => {}
             Self::LetExpr => {}