diff -r dace11211dc9 -r 03cd058c33ba streamlet/constants.cpp.sh
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/streamlet/constants.cpp.sh	Sat Jan 11 18:06:58 2020 +0100
@@ -0,0 +1,41 @@
+#!/bin/bash
+
+CSV="$(cat)";
+
+echo "// This file was generated from the specification.
+
+#pragma once
+
+#include <map>
+#include <string>
+
+namespace relpipe {
+namespace in {
+namespace filesystem {
+
+class StreamletMsg {
+public:
+";
+
+echo "$CSV" | relpipe-in-csv constants | relpipe-tr-sql --relation 'constants' "SELECT '	static const int ' || message || ';' FROM constants WHERE code > 0" | relpipe-out-nullbyte | xargs -0 -n1 echo
+
+echo "
+	static std::map<int, std::wstring> getMessageNames() {
+		std::map<int, std::wstring> m;
+";
+
+echo "$CSV" | relpipe-in-csv constants | relpipe-tr-sql --relation 'constants' "SELECT '		m[' || message || '] = L\"' || message || '\";' FROM constants WHERE code > 0" | relpipe-out-nullbyte | xargs -0 -n1 echo
+
+echo "
+		return m;
+	}
+
+};
+"
+
+echo "$CSV" | relpipe-in-csv constants | relpipe-tr-sql --relation 'constants' "SELECT 'const int StreamletMsg::' || message || ' = ' || code || ';' FROM constants WHERE code > 0" | relpipe-out-nullbyte | xargs -0 -n1 echo
+
+echo "
+}
+}
+}";