Add structs, enums for `mdast`

1 files changed, 40 insertions, 0 deletions

diff --git a/src/to_mdast.rs b/src/to_mdast.rs
new file mode 100644
index 0000000..d56134a
--- /dev/null
+++ b/src/to_mdast.rs
@@ -0,0 +1,40 @@
+//! Turn events into a syntax tree.
+
+// To do: example.
+
+use crate::event::Event;
+use crate::mdast;
+use crate::Options;
+use alloc::vec;
+
+/// Turn events and bytes into a syntax tree.
+pub fn compile(events: &[Event], _bytes: &[u8], _options: &Options) -> mdast::Root {
+    mdast::Root {
+        kind: mdast::Kind::Root,
+        children: vec![],
+        position: Some(mdast::Position {
+            start: if events.is_empty() {
+                create_point(1, 1, 0)
+            } else {
+                point_from_event(&events[0])
+            },
+            end: if events.is_empty() {
+                create_point(1, 1, 0)
+            } else {
+                point_from_event(&events[events.len() - 1])
+            },
+        }),
+    }
+}
+
+fn point_from_event(event: &Event) -> mdast::Point {
+    create_point(event.point.line, event.point.column, event.point.index)
+}
+
+fn create_point(line: usize, column: usize, offset: usize) -> mdast::Point {
+    mdast::Point {
+        line,
+        column,
+        offset,
+    }
+}