Re: continuing continue - was Re: [patch] continue statement

[Chris Marrin <chris@...>]

Shmuel Zeigerman wrote:
> Rici Lake wrote:
>
> >
> <snip>
>
> > This sort of thing can be dealt with by using a tailcall, although 
> > that means expanding the for statement:
> <snip>
>
> > If you really really need to be able to 'return' as well, you can wrap 
> > the whole thing in a coroutine. I can't say I've ever encountered this 
> > situation, and there are probably better ways to handle it. However:
>
> Isn't it awkward that one needs to invent workarounds such
> as tail calls or coroutines or artificial extra loops just
> to not use such a basic thing as the "continue" statement?
>
> IIRC, the "continue" patch adds only 3 or so lines to the lua sources.
> No, I don't consider "continue" as contamination of lua.
> I very much hope to see "continue" as part of lua some time.

Let me add my voice to the group who would really like to see continue 
in Lua. In the work I am doing, I am looking at translating from 
Javascript into Lua. With almost every other construct (switch, 
arithmetic assignment, for loops) there is a simple translation into Lua 
syntax. But continue would be incredibly difficult to translate, 
especially given all the edge cases that arise.

For such a simple patch, it seems like a big win.

--
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