Re: Redefining locals

[Mark Hamburg <mhamburg@...>]

Okay. "_" is a good example. I'm not as squeamish about treating it as a
special case, however, if it's the primary reason to use the facility.

If one still allowed hiding in nested scopes, then I think the other uses
could be covered at the expense of having to introduce explicit do blocks.

Mark

on 11/11/04 9:46 AM, Rici Lake at lua@ricilake.net wrote:

> 
> On 11-Nov-04, at 11:54 AM, Mark Hamburg wrote:
> 
>>  Is it useful to be able
>> to capture a variable and then create a new variable with the same
>> name in
>> what appears to be the same scope?
> 
> My most common use of the idiom is the following:
> 
>  local _, _, capture = string.find(str, pattern)
> 
> If you couldn't use nested local's, this would be illegal (and most of
> my code would break).
> 
> Special casing _ strikes me as not a good idea, but perhaps some would
> like that.
> 
> R.
>