RE: String access & metamethods

["Carlos Augusto Teixeira Mendes" <cmendes@...>]

Be carefull with concatenation operations.

In the code:

getmetatable("").__tostring=function (x) return "<<<"..x..">>>" end

a = "foo".."bar"
print(a)

you will get <<<foobar>>>

and not <<<foo>>><<<bar>>> as you might be expecting for your translation
requirements.

Carlos Augusto.

> -----Original Message-----
> From: lua-bounces@bazar2.conectiva.com.br
> [mailto:lua-bounces@bazar2.conectiva.com.br]On Behalf Of Luiz
> Henrique de Figueiredo
> Sent: Wednesday, December 12, 2007 8:27 PM
> To: Lua list
> Subject: Re: String access & metamethods
>
>
> > OK, so that's just brilliant, and was exactly what I was
> looking for.  Now
> > the question is, what am I potentially getting myself into by
> overwriting
> > the __tostring metamethod?
>
> The __tostring metamethod is only used in print and in tostring; it's not
> a core metamethod. I'm not sure this answers your question but
> there it is.
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