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On 27 Jan 2011, at 14:42, Roberto Ierusalimschy wrote:
In Lua, we cannot have traditional labels, because the syntax "foo:"
already has a different meaning. Instead, a simple syntax would be to
add labels only to "do end" blocks, for instance like this:

If I understand this correctly, old 'break' (without labels) would became superfluous as it would be mainly a sugar to break a hidden 'do ... end' around the innermost loop, like:

do :hidden:
 while condition do
   break :hidden: -- same as 'break'

If that's the case, would 'break' without labels still be supported (one more thing to learn, document, etc.)? Or maybe become a deprecated feature?

Renato Maia
Computer Scientist