Found my old LEL code and got the shell working, so tomorrow I'll try to make it layout some gui element.

tests/lel.cpp

@@ -0,0 +1,21 @@
+#include "lel.hpp"
+#include <catch2/catch_test_macros.hpp>
+#include <fmt/core.h>
+#include <string>
+#include "ansi_parser.hpp"
+#include <codecvt>
+#include <iostream>
+
+
+
+TEST_CASE("test basic ops", "[lel]") {
+  LELParser parser;
+
+  bool good = parser.parse(
+     "[ label_1         | label3      ]"
+     "[ (300,300)*text1 | (150)people ]"
+     "[ <label2         | _           ]"
+     "[ message         | buttons     ]");
+
+  REQUIRE(good);
+}