- Switched back to custom window management, taking another stab

- Refactored lang yet again, `fennec/lang` is now C++ language. `fennec/string` `fennec/filesystem` and `fennec/format` are now independent.

source/lang/assert.cpp

@@ -16,42 +16,17 @@
 //  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 // =====================================================================================================================
 
+#include <fennec/lang/detail/_stdlib.h>
 
-#include <fennec/lang/filesystem/path.h>
+using assert_handler = void (*)(const char *, const char *, int , const char *);
 
-namespace fennec
+void _assert_callback(const char* expression, const char* file, int line, const char* function, const char* description);
+
+void _assert_impl(const char* expression, const char* file, int line, const char* function, const char* description, bool halt)
 {
+	_assert_callback(expression, file, line, function, description);
 
-#ifdef FENNEC_COMPILER_MSVC
-
-path path::current() {
-	char cstr[MAX_PATH];
-	if (GetCurrentDirectory(sizeof(str), str) == 0) {
-		return string("");
+	if (halt) {
+		::abort();
 	}
-	return path(cstr);
-}
-
-#else
-
-#include <unistd.h>
-#include <linux/limits.h>
-
-path path::current() {
-	char cstr[PATH_MAX];
-	if (getcwd(cstr, sizeof(cstr)) == nullptr) {
-		return path("");
-	}
-	return path(cstring(cstr, strlen(cstr) + 1));
-}
-
-path path::current(const path& path) {
-	if (chdir(path._str.cstr())) {
-		return fennec::path("");
-	}
-	return current();
-}
-
-#endif
-
 }