1 files changed, 17 insertions, 1 deletions
diff --git a/src/sexp/mod.rs b/src/sexp/mod.rs
index 0fb5e25..60dd3b0 100644
--- a/src/sexp/mod.rs
+++ b/src/sexp/mod.rs
@@ -12,13 +12,29 @@ pub mod display;
 #[derive(PartialEq)]
 #[derive(Clone)]
 pub enum SLeaf {
+
     Add,
     Sub,
     Mul,
     Div,
+    Eq,
+    Neq,
+    Gt,
+    Lt,
+    Ge,
+    Le,
+    And,
+    Or,
+    Not,
+    Xor,
+    Quote,
+
     Int(i32),
+    True,
+    False,
+
     Var(String),
-    Quote,
+
     Nil,
 }