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- Subject: Re: continue continued, with break N
- From: David Manura <dm.lua@...>
- Date: Fri, 19 Nov 2010 22:46:05 -0500
On Fri, Nov 19, 2010 at 2:20 AM, Axel Kittenberger <firstname.lastname@example.org> wrote:
> wait, +0 is something different than -0? No please not.
Another numbering scheme may be better, but I think now that numbered
scopes are less readable/decipherable than named scopes.
Interestingly, Lua already has named scopes: they are called lexical
variables. That leads to this proposal:
for x=1,10 do
local cont -- dummy variable
for y=1,10 do
if f(x,y) then break x end -- jump to end of x scope (i.e.
break outer loop)
if g(x,y) then break cont end -- jump to end of cont scope
(i.e. continue outer loop)
which may warrant serious consideration. It opens up some other
possibilities too, if the language designer chooses to allow it:
if a() then break s end -- break out of non-loop blocks too.
break x -- could this even be allowed? (break across functions)