initial decorator parsing in markup

crates/typst-syntax/src/parser.rs

@@ -121,6 +121,7 @@ fn markup_expr(p: &mut Parser, at_start: &mut bool) {
         | SyntaxKind::Link
         | SyntaxKind::Label => p.eat(),
 
+        SyntaxKind::DecoratorMarker => decorator(p),
         SyntaxKind::Hash => embedded_code_expr(p),
         SyntaxKind::Star => strong(p),
         SyntaxKind::Underscore => emph(p),
@@ -146,6 +147,19 @@ fn markup_expr(p: &mut Parser, at_start: &mut bool) {
     *at_start = false;
 }
 
+fn decorator(p: &mut Parser) {
+    let m = p.marker();
+    p.enter(LexMode::Decorator);
+    p.assert(SyntaxKind::DecoratorMarker);
+
+    while !p.end() {
+        p.eat();
+    }
+
+    p.exit();
+    p.wrap(m, SyntaxKind::Decorator);
+}
+
 /// Parses strong content: `*Strong*`.
 fn strong(p: &mut Parser) {
     const END: SyntaxSet = SyntaxSet::new()

crates/typst-syntax/src/set.rs

@@ -54,6 +54,7 @@ pub const MARKUP_EXPR: SyntaxSet = SyntaxSet::new()
     .add(SyntaxKind::Parbreak)
     .add(SyntaxKind::LineComment)
     .add(SyntaxKind::BlockComment)
+    .add(SyntaxKind::DecoratorMarker)
     .add(SyntaxKind::Text)
     .add(SyntaxKind::Linebreak)
     .add(SyntaxKind::Escape)