Re: Lua 5.2 and continue

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• Subject: Re: Lua 5.2 and continue
• From: john <john@...>
• Date: 2010年1月14日 11:56:47 +0300

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Nevin Flanagan wrote:

On Jan 13, 2010, at 9:18 PM, Joshua Jensen wrote:

I'm assuming (from the recent message referring to 'continue') that Lua 5.2 does not have a continue keyword? I use continue almost every time I write a script, and it would sure be nice to have it an integral part of the language. The continue patch works fantastic for me.

While I understand that the phrasing can be noticeably prettier and easier to maintain in some circumstances, is there something "if condition then continue end" does that "if not condition then rest_of_loop end" can't?

example 1:
for ... do
 if c1 then do
 ...
 if c2 then do
 ...
 if c3 then do
 ...
 if c4 then do
 ...
 if c5 then do
 ...
 if c6 then do
 ...
 end
 end
 end
 end
 end
 end
end
example 2:
for ... do
 if not c1 then do continue end
 ...
 if not c2 then do continue end
 ...
 if not c3 then do continue end
 ...
 if not c4 then do continue end
 ...
 if not c5 then do continue end
 ...
 if not c6 then do continue end
end

which example is more clean and more elegant looking? yep, the second one is.

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• Follow-Ups:
  • Re: Lua 5.2 and continue, Alexander Gladysh

• References:
  • Lua 5.2 and continue, Joshua Jensen
  • Re: Lua 5.2 and continue, Nevin Flanagan

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