Initial revision
diff --git a/Parser/pgen.h b/Parser/pgen.h
new file mode 100644
index 0000000..7fcf277
--- /dev/null
+++ b/Parser/pgen.h
@@ -0,0 +1,6 @@
+/* Parser generator interface */
+
+extern grammar gram;
+
+extern grammar *meta_grammar PROTO((void));
+extern grammar *pgen PROTO((node *));