1 files changed, 11 insertions, 0 deletions
diff --git a/src/syntax/ast.rs b/src/syntax/ast.rs
new file mode 100644
index 0000000..bb12e81
--- /dev/null
+++ b/src/syntax/ast.rs
@@ -0,0 +1,11 @@
+pub struct Regex {
+    pub root: Box<Pattern>,
+}
+
+pub enum Pattern {
+    Empty,
+    Literal(u8),
+    Concat(Box<Pattern>, Box<Pattern>),
+    Alt(Box<Pattern>, Box<Pattern>),
+    Star(Box<Pattern>),
+}