Alternatively, re2c does the same thing: http://re2c.org/ (for simple use cases like matching a string against one of several predefined constants).When I write modules to wrap C++ objects, they usually have a __index method that does a lot of string comparing, like: if(!strcmp(key, "foo")) lua_pushcfunction(L, obj_method_foo); else if(!strcmp(key, "bar")) lua_pushcfunction(L, obj_method_bar); etc... I'm not sure if compilers can optimize this, but doing all those strcmp()s every time a method/field is looked up seems terribly inefficient.Try Ragel[1]. [1]: http://www.complang.org/ragel/ I've attached the template I use for such occasions.
- Peter