Added regex support to namespaces filter

tests/test_filters.cc

@@ -144,4 +144,62 @@ TEST_CASE("Test elements regexp filter", "[unit-test]")
     c.set_name("ClassA");
 
     CHECK(filter.should_include(c));
+}
+
+TEST_CASE("Test namespaces regexp filter", "[unit-test]")
+{
+    using clanguml::class_diagram::model::class_method;
+    using clanguml::common::model::access_t;
+    using clanguml::common::model::diagram_filter;
+    using clanguml::common::model::namespace_;
+    using clanguml::common::model::package;
+    using clanguml::common::model::source_file;
+
+    using clanguml::class_diagram::model::class_;
+
+    auto cfg = clanguml::config::load("./test_config_data/filters.yml");
+
+    auto &config = *cfg.diagrams["regex_namespace_test"];
+    clanguml::class_diagram::model::diagram diagram;
+
+    diagram_filter filter(diagram, config);
+
+    class_ c{{}};
+
+    c.set_namespace(namespace_{"ns1::ns2"});
+    c.set_name("ClassA");
+
+    CHECK(filter.should_include(c));
+
+    c.set_namespace(namespace_{"ns1::ns2::detail"});
+    c.set_name("ClassAImpl");
+
+    CHECK(!filter.should_include(c));
+
+    c.set_namespace(namespace_{"ns1::interface"});
+    c.set_name("IClassA");
+
+    CHECK(filter.should_include(c));
+
+    CHECK(!filter.should_include(namespace_{"ns1"}));
+    CHECK(filter.should_include(namespace_{"ns1::ns2"}));
+    CHECK(!filter.should_include(namespace_{"ns1::ns2::detail"}));
+    CHECK(filter.should_include(namespace_{"ns1::interface"}));
+
+    package p{{}};
+
+    p.set_namespace({"ns1"});
+    p.set_name("ns2");
+
+    CHECK(filter.should_include(p));
+
+    p.set_namespace({"ns1::ns2"});
+    p.set_name("detail");
+
+    CHECK(!filter.should_include(p));
+
+    p.set_namespace({"ns1"});
+    p.set_name("interface");
+
+    CHECK(filter.should_include(p));
 }