Show with set

src/model/eval.rs

@@ -851,7 +851,11 @@ impl Eval for ast::ShowRule {
 
         let transform = self.transform();
         let span = transform.span();
-        let transform = transform.eval(vm)?.cast::<Transform>().at(span)?;
+
+        let transform = match transform {
+            ast::Expr::Set(set) => Transform::Style(set.eval(vm)?),
+            expr => expr.eval(vm)?.cast::<Transform>().at(span)?,
+        };
 
         Ok(Recipe { span, selector, transform })
     }

src/model/styles.rs

@@ -491,6 +491,8 @@ pub enum Transform {
     Content(Content),
     /// A function to apply to the match.
     Func(Func),
+    /// Apply styles to the content.
+    Style(StyleMap),
 }
 
 impl Transform {
@@ -512,6 +514,7 @@ impl Transform {
                 }
                 Ok(result?.display())
             }
+            Transform::Style(styles) => Ok(content.styled_with_map(styles.clone())),
         }
     }
 }

src/syntax/incremental.rs

@@ -458,7 +458,7 @@ mod tests {
         test(r#"a ```typst hello``` b"#, 16 .. 17, "", 0 .. 18);
         test(r#"a ```typst hello```"#, 16 .. 17, "", 0 .. 18);
         test("#for", 4 .. 4, "//", 0 .. 6);
-        test("#show a: f as b..", 16..16, "c", 0..18);
+        test("#show f: a => b..", 16..16, "c", 0..18);
         test("a\n#let \nb", 7 .. 7, "i", 2 .. 9);
         test("a\n#for i \nb", 9 .. 9, "in", 2 .. 12);
         test("a~https://fun/html", 13..14, "n", 0..18);

tests/typ/structure/attach.typ

@@ -10,7 +10,7 @@ Next paragraph.
 
 ---
 // Test that attached list isn't affected by block spacing.
-#show list: it => { set block(above: 100pt); it }
+#show list: set block(above: 100pt)
 Hello
 - A
 World

tests/typ/style/construct.typ

@@ -27,5 +27,5 @@ A #rect(fill: yellow, inset: 5pt, rect()) B
 ---
 // The constructor property should still work
 // when there are recursive show rules.
-#show list: text.with(blue)
+#show list: set text(blue)
 #list(label: "(a)", [A], list[B])

tests/typ/style/label.typ

@@ -2,7 +2,7 @@
 
 ---
 // Test labelled headings.
-#show heading: text.with(10pt)
+#show heading: set text(10pt)
 #show heading.where(label: "intro"): underline
 
 = Introduction <intro>
@@ -13,7 +13,7 @@ The end.
 
 ---
 // Test label after expression.
-#show strong.where(label: "v"): text.with(red)
+#show strong.where(label: "v"): set text(red)
 
 #let a = [*A*]
 #let b = [*B*]
@@ -30,8 +30,8 @@ This is a thing [that <last>] happened.
 
 ---
 // Test abusing labels for styling.
-#show strong.where(label: "red"): text.with(red)
-#show strong.where(label: "blue"): text.with(blue)
+#show strong.where(label: "red"): set text(red)
+#show strong.where(label: "blue"): set text(blue)
 
 *A* *B* <red> *C* <blue> *D*
 

tests/typ/style/show-node.typ

@@ -13,7 +13,7 @@
 ---
 // Test full reset.
 #show heading: [B]
-#show heading: text.with(size: 10pt, weight: 400)
+#show heading: set text(size: 10pt, weight: 400)
 A [= Heading] C
 
 ---

tests/typ/style/show-selector.typ

@@ -28,9 +28,9 @@ code!("it");
 ```
 
 ---
-#show heading.where(level: 1): text.with(red)
-#show heading.where(level: 2): text.with(blue)
-#show heading: text.with(green)
+#show heading.where(level: 1): set text(red)
+#show heading.where(level: 2): set text(blue)
+#show heading: set text(green)
 = Red
 == Blue
 === Green

tests/typ/text/indent.typ

@@ -3,7 +3,7 @@
 ---
 #set par(indent: 12pt, leading: 5pt)
 #set block(spacing: 5pt)
-#show heading: text.with(size: 10pt)
+#show heading: set text(size: 10pt)
 
 The first paragraph has no indent.
 

tests/typ/text/par.typ

@@ -16,18 +16,17 @@ It is the east, and Juliet is the sun.
 ---
 // Test that paragraph spacing loses against block spacing.
 // TODO
-// #set block(spacing: 100pt)
-// #show table: set block(spacing: 5pt)
-#set block(spacing: 5pt)
+#set block(spacing: 100pt)
+#show table: set block(above: 5pt, below: 5pt)
 Hello
 #table(columns: 4, fill: (x, y) => if odd(x + y) { silver })[A][B][C][D]
 
 ---
 // While we're at it, test the larger block spacing wins.
 #set block(spacing: 0pt)
-#show raw: it => { set block(spacing: 15pt); it }
-#show math: it => { set block(spacing: 7.5pt); it }
-#show list: it => { set block(spacing: 2.5pt); it }
+#show raw: set block(spacing: 15pt)
+#show math: set block(spacing: 7.5pt)
+#show list: set block(spacing: 2.5pt)
 
 ```rust
 fn main() {}