1 files changed, 38 insertions, 0 deletions
diff --git a/nerv/nerv.c b/nerv/nerv.c
new file mode 100644
index 0000000..a59eadc
--- /dev/null
+++ b/nerv/nerv.c
@@ -0,0 +1,38 @@
+#include "common.h"
+
+extern void nerv_example_init(lua_State *L);
+extern void nerv_matrix_init(lua_State *L);
+extern void nerv_io_init(lua_State *L);
+
+static const luaL_Reg nerv_utils_methods[] = {
+    {"setmetatable", luaT_lua_setmetatable},
+    {"getmetatable", luaT_lua_getmetatable},
+    {"newmetatable", luaT_lua_newmetatable},
+    {"typename", luaT_lua_typename},
+    {NULL, NULL}
+};
+
+void nerv_utils_init(lua_State *L) {
+    luaL_register(L, NULL, nerv_utils_methods);
+}
+
+int luaopen_libnerv(lua_State *L) {
+    lua_newtable(L);
+    /* duplicate table */
+    lua_pushvalue(L, -1);
+    /* set table to global index */
+    lua_setfield(L, LUA_GLOBALSINDEX, "nerv");
+    /* A table reference still remains.
+     *
+     * The following initialization functions should obey to the rule that they
+     * maintain the stack properly to guarantee the stack stays the same before
+     * and after invoking the call (i.e. stay balanced).
+     *
+     * Also note that they can make use of the value at top of the stack which
+     * references to the `nerv` global table. */
+    nerv_utils_init(L);
+    nerv_example_init(L);
+    nerv_matrix_init(L);
+    nerv_io_init(L);
+    return 1;
+}