use lexer macros.

diff --git a/src/prolog/parser b/src/prolog/parser
index ae747778688290ecf1c80b68cf34cf28bffac9f8..d52da58a5d5c3404305466a53c2682ef84274085 160000 (submodule)
--- a/src/prolog/parser
+++ b/src/prolog/parser
@@ -1 +1 @@
-Subproject commit ae747778688290ecf1c80b68cf34cf28bffac9f8
+Subproject commit d52da58a5d5c3404305466a53c2682ef84274085