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Roberto Ierusalimschy wrote: 
  repeat
    ...
    if something then continue end
    ...
    local x = ...
    ...
  until something-with-x

We have two options: either the continue jumps into the scope of 'x'
bypassing its declaration/initialization (very bad), or the continue
skips the test altogether (very bad too).

After some more thinking, I still fail to see downside(s) of skipping the test, more exactly, of passing control to the loop top.

After all, it is a *repeat*, and 'continue' in 'repeat' may also be interpreted (by either a human or a compiler) as "continue to repeat".

'repeat' in Lua doesn't have to behave like 'repeat' or 'do' in other languages. :)
--
Shmuel