Initial commit

term.h

@@ -0,0 +1,30 @@
+#ifndef INCLUDED_TERM_H
+#define INCLUDED_TERM_H
+
+#include <stddef.h>
+
+typedef enum {
+    TYPE_VARIABLE,
+    TYPE_LAMBDA,
+    TYPE_APPLY,
+} LambdaTermType;
+
+typedef struct _LambdaTerm LambdaTerm;
+struct _LambdaTerm {
+    LambdaTermType type;
+    union {
+        struct {
+            char name;
+        } v;
+        struct {
+            char argument;
+            LambdaTerm *body;
+        } l;
+        struct {
+            char function;
+            LambdaTerm *argument;
+        };
+    };
+};
+
+#endif