add example crates

example-library/src/lib.rs

@@ -0,0 +1,18 @@
+use std::ffi::{c_char, CStr};
+use mlua::Lua;
+
+#[no_mangle]
+pub extern "C" fn lua_new() -> *mut Lua {
+    let lua = Lua::new();
+    Box::into_raw(Box::new(lua))
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn lua_execute(lua: *mut Lua, to_execute: *const c_char) {
+    let lua: &mut Lua = &mut *lua;
+    let to_execute = CStr::from_ptr(to_execute);
+
+    if let Err(err) = lua.load(&to_execute.to_string_lossy().to_string()).exec() {
+        eprintln!("{}", err)
+    }
+}