Changing string metatable
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- Subject: Changing string metatable
- From: Ignacio Burgueño <ignacio@...>
- Date: 2007年3月16日 20:37:13 -0300
Hi.
Is it possible to change strings __eq metamethod? I'd like to change it
so I can do caseless comparisons.
I know that in order to do that, I need to do it from C, so I expected
this to work.
// get string metatable
lua_pushstring(eval, "");
lua_getmetatable(eval, -1);
// define a lua function (dostring just evaluates the code)
eval.dostring("test = function(k,v) print(k,v); return true; end");
lua_pushstring(eval, "__eq"); // push the key
lua_getglobal(eval, "test"); // push the value (my function)
lua_rawset(eval, -3); // set the metamethod
eval.dostring("return \"abc\" == \"ABc\"");
bool b = lua_toboolean(eval, -1);
That's not working. What am I doing wrong? I also tried to set __eq from
Lua, using the debug library, to no avail.
Thanks in advance,
Ignacio Burgueño