utils: add missing mu-regex.cc

Fixes #2425

lib/utils/mu-regex.cc

@@ -0,0 +1,65 @@
+/*
+** Copyright (C) 2023 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
+**
+** This program is free software; you can redistribute it and/or modify it
+** under the terms of the GNU General Public License as published by the
+** Free Software Foundation; either version 3, or (at your option) any
+** later version.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+**
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software Foundation,
+** Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+**
+*/
+
+#include "mu-regex.hh"
+#include <iostream>
+
+using namespace Mu;
+
+// LCOV_EXCL_STOP
+
+#if BUILD_TESTS
+#include "mu-test-utils.hh"
+
+// No need for extensive regex test, we just rely on GRegex.
+
+static void
+test_regex_match()
+{
+	auto rx = Regex::make("a.*b.c");
+	assert_valid_result(rx);
+
+	g_assert_true(rx->matches("axxxxxbqc"));
+	g_assert_false(rx->matches("axxxxxbqqc"));
+}
+
+static void
+test_regex_replace()
+{
+	auto rx = Regex::make("f.o");
+	assert_valid_result(rx);
+
+	assert_equal(rx->replace("foobar", "cuux"), "cuuxbar");
+}
+
+int
+main(int argc, char* argv[])
+try {
+        mu_test_init(&argc, &argv);
+
+        g_test_add_func("/regex/match", test_regex_match);
+        g_test_add_func("/regex/replace", test_regex_replace);
+        return g_test_run();
+
+} catch (const std::runtime_error& re) {
+        std::cerr << re.what() << "\n";
+        return 1;
+}
+
+#endif /*BUILD_TESTS*/