Parenthesized imports (#4869)

Co-authored-by: Laurenz <laurmaedje@gmail.com>

crates/typst-syntax/src/parser.rs

@@ -989,9 +989,22 @@ fn module_import(p: &mut Parser) {
         // imported at the same time.
         p.expect(SyntaxKind::Ident);
     }
-    if p.eat_if(SyntaxKind::Colon) && !p.eat_if(SyntaxKind::Star) {
+
+    if p.eat_if(SyntaxKind::Colon) {
+        if p.at(SyntaxKind::LeftParen) {
+            let m1 = p.marker();
+            p.enter_newline_mode(NewlineMode::Continue);
+            p.assert(SyntaxKind::LeftParen);
+
+            import_items(p);
+
+            p.expect_closing_delimiter(m1, SyntaxKind::RightParen);
+            p.exit_newline_mode();
+        } else if !p.eat_if(SyntaxKind::Star) {
             import_items(p);
         }
+    }
+
     p.wrap(m, SyntaxKind::ModuleImport);
 }
 
@@ -1021,6 +1034,7 @@ fn import_items(p: &mut Parser) {
             p.expect(SyntaxKind::Comma);
         }
     }
+
     p.wrap(m, SyntaxKind::ImportItems);
 }
 

tests/suite/scripting/import.typ

@@ -55,6 +55,49 @@
 #test(name, "Klaus")
 #test(othername, "Klaus")
 
+--- import-items-parenthesized ---
+#import "module.typ": ()
+#import "module.typ": (a)
+#import "module.typ": (a, b)
+#import "module.typ": (a, b, c, d)
+
+#test(a, none)
+#test(b, 1)
+#test(c, 2)
+#test(d, 3)
+
+--- import-items-parenthesized-multiline ---
+#import "module.typ": (
+  a
+)
+#import "module.typ": (
+  a, b as e,
+  c,
+
+
+      d,
+)
+
+#test(a, none)
+#test(e, 1)
+#test(c, 2)
+#test(d, 3)
+
+--- import-items-parenthesized-invalid ---
+// Error: 23-24 unclosed delimiter
+#import "module.typ": (a, b, c
+
+--- import-items-parenthesized-invalid-2 ---
+// Error: 23-24 unclosed delimiter
+#import "module.typ": (
+
+--- import-items-parenthesized-invalid-3 ---
+// Error: 23-24 unclosed delimiter
+#import "module.typ": (
+  a, b,
+  c,
+
+
 --- import-from-function-scope ---
 // Test importing from function scopes.