Allow multiple authors

library/src/layout/grid.rs

@@ -151,10 +151,7 @@ castable! {
     TrackSizings,
     sizing: Sizing => Self(vec![sizing]),
     count: NonZeroUsize => Self(vec![Sizing::Auto; count.get()]),
-    values: Array => Self(values
-        .into_iter()
-        .filter_map(|v| v.cast().ok())
-        .collect()),
+    values: Array => Self(values.into_iter().map(Value::cast).collect::<StrResult<_>>()?),
 }
 
 castable! {

library/src/meta/document.rs

@@ -25,9 +25,9 @@ impl DocumentNode {
     #[property(referenced)]
     pub const TITLE: Option<EcoString> = None;
 
-    /// The document's author.
+    /// The document's authors.
     #[property(referenced)]
-    pub const AUTHOR: Option<EcoString> = None;
+    pub const AUTHOR: Author = Author(vec![]);
 }
 
 impl LayoutRoot for DocumentNode {
@@ -43,7 +43,7 @@ impl LayoutRoot for DocumentNode {
         Ok(Document {
             pages,
             title: styles.get(Self::TITLE).clone(),
-            author: styles.get(Self::AUTHOR).clone(),
+            author: styles.get(Self::AUTHOR).0.clone(),
         })
     }
 }
@@ -54,3 +54,13 @@ impl Debug for DocumentNode {
         self.0.fmt(f)
     }
 }
+
+/// A list of authors.
+#[derive(Debug, Clone, Hash)]
+pub struct Author(Vec<EcoString>);
+
+castable! {
+    Author,
+    v: EcoString => Self(vec![v]),
+    v: Array => Self(v.into_iter().map(Value::cast).collect::<StrResult<_>>()?),
+}

library/src/text/misc.rs

@@ -374,5 +374,5 @@ pub fn smallcaps(args: &mut Args) -> SourceResult<Value> {
 #[func]
 pub fn lorem(args: &mut Args) -> SourceResult<Value> {
     let words: usize = args.expect("number of words")?;
-    Ok(Value::Str(lipsum::lipsum(words).into()))
+    Ok(Value::Str(lipsum::lipsum(words).replace("--", "–").into()))
 }

library/src/text/mod.rs

@@ -548,10 +548,7 @@ pub struct FallbackList(pub Vec<FontFamily>);
 castable! {
     FallbackList,
     family: FontFamily => Self(vec![family]),
-    values: Array => Self(values
-        .into_iter()
-        .filter_map(|v| v.cast().ok())
-        .collect()),
+    values: Array => Self(values.into_iter().map(|v| v.cast()).collect::<StrResult<_>>()?),
 }
 
 /// The size of text.

src/doc.rs

@@ -25,7 +25,7 @@ pub struct Document {
     /// The document's title.
     pub title: Option<EcoString>,
     /// The document's author.
-    pub author: Option<EcoString>,
+    pub author: Vec<EcoString>,
 }
 
 /// A finished layout with elements at fixed positions.

src/export/pdf/mod.rs

@@ -122,9 +122,11 @@ fn write_catalog(ctx: &mut PdfContext) {
         info.title(TextStr(title));
         xmp.title([(None, title.as_str())]);
     }
-    if let Some(author) = &ctx.document.author {
-        info.author(TextStr(author));
-        xmp.creator([(author.as_str())]);
+
+    let authors = &ctx.document.author;
+    if !authors.is_empty() {
+        info.author(TextStr(&authors.join(", ")));
+        xmp.creator(authors.iter().map(|s| s.as_str()));
     }
     info.creator(TextStr("Typst"));
     info.finish();

tests/typ/meta/document.typ

@@ -5,6 +5,17 @@
 #set document(title: "Hello")
 What's up?
 
+---
+// This, too.
+// Ref: false
+#set document(author: ("A", "B"))
+
+---
+// This, too.
+// Error: 23-29 expected string, found integer
+#set document(author: (123,))
+What's up?
+
 ---
 Hello