1 files changed, 11 insertions, 0 deletions
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..6e363b3
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,11 @@
+enum Token {
+    Operand(f64),
+    Operator(Operator),
+}
+
+enum Operator {
+    Add,
+    Sub,
+    Mul,
+    Div,
+}