Add version command

crates/luajit/src/lib.rs

@@ -25,6 +25,16 @@ pub fn version() -> &'static str {
     LUAJIT_VERSION.to_str().unwrap()
 }
 
+/// LuaJIT copyright string.
+pub fn copyright() -> &'static str {
+    LUAJIT_COPYRIGHT.to_str().unwrap()
+}
+
+/// LuaJIT URL string.
+pub fn url() -> &'static str {
+    LUAJIT_URL.to_str().unwrap()
+}
+
 /// Lua error.
 #[derive(Debug, Error)]
 #[non_exhaustive]