Overloading operators by operator symbol

[Daniel Keep]

Bill Baxter wrote:
> ..., Lua has very similar, ...

Just pointing out that Lua's special methods are in a completely
different namespace to the "normal" methods, so it isn't a problem.
Special methods are attached to a table's metatable, which exists just
for that purpose.

> local t = {}
> local mt = getmetatable(t) or {}
>
> function mt:index(k)
>     return "foo"
> end
>
> setmetatable(t, mt)
>
> io.print(t.blah) -- prints "foo"

Apologies if any of that is incorrect; very sleepy over here :3

	-- Daniel

-- 
Unlike Knuth, I have neither proven or tried the above; it may not even
make sense.

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