Create basic box and line-break functions 📦

1 files changed, 29 insertions, 0 deletions

diff --git a/src/library/boxed.rs b/src/library/boxed.rs
new file mode 100644
index 00000000..975888f4
--- /dev/null
+++ b/src/library/boxed.rs
@@ -0,0 +1,29 @@
+use super::prelude::*;
+
+/// Wraps content into a box.
+#[derive(Debug, PartialEq)]
+pub struct BoxFunc {
+    body: SyntaxTree
+}
+
+impl Function for BoxFunc {
+    fn parse(header: &FuncHeader, body: Option<&str>, ctx: ParseContext) -> ParseResult<Self>
+    where Self: Sized {
+        if has_arguments(header) {
+            return err("pagebreak: expected no arguments");
+        }
+
+        if let Some(body) = body {
+            Ok(BoxFunc {
+                body: parse(body, ctx)?
+            })
+        } else {
+            err("box: expected body")
+        }
+    }
+
+    fn layout(&self, ctx: LayoutContext) -> LayoutResult<CommandList> {
+        let layout = layout_tree(&self.body, ctx)?;
+        Ok(commands![Command::AddMany(layout)])
+    }
+}