Split out four new crates (#5302)

1 files changed, 49 insertions, 0 deletions

diff --git a/crates/typst-library/src/layout/repeat.rs b/crates/typst-library/src/layout/repeat.rs
new file mode 100644
index 00000000..e423410a
--- /dev/null
+++ b/crates/typst-library/src/layout/repeat.rs
@@ -0,0 +1,49 @@
+use crate::diag::SourceResult;
+use crate::engine::Engine;
+use crate::foundations::{elem, Content, NativeElement, Packed, Show, StyleChain};
+use crate::layout::{BlockElem, Length};
+
+/// Repeats content to the available space.
+///
+/// This can be useful when implementing a custom index, reference, or outline.
+///
+/// Space may be inserted between the instances of the body parameter, so be
+/// sure to adjust the [`justify`]($repeat.justify) parameter accordingly.
+///
+/// Errors if there no bounds on the available space, as it would create
+/// infinite content.
+///
+/// # Example
+/// ```example
+/// Sign on the dotted line:
+/// #box(width: 1fr, repeat[.])
+///
+/// #set text(10pt)
+/// #v(8pt, weak: true)
+/// #align(right)[
+///   Berlin, the 22nd of December, 2022
+/// ]
+/// ```
+#[elem(Show)]
+pub struct RepeatElem {
+    /// The content to repeat.
+    #[required]
+    pub body: Content,
+
+    /// The gap between each instance of the body.
+    #[default]
+    pub gap: Length,
+
+    /// Whether to increase the gap between instances to completely fill the
+    /// available space.
+    #[default(true)]
+    pub justify: bool,
+}
+
+impl Show for Packed<RepeatElem> {
+    fn show(&self, engine: &mut Engine, _: StyleChain) -> SourceResult<Content> {
+        Ok(BlockElem::single_layouter(self.clone(), engine.routines.layout_repeat)
+            .pack()
+            .spanned(self.span()))
+    }
+}