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2017-10-11 4:51 GMT+02:00 Soni L. <>:
> It's one of:
> - caret is wrong
> - frontier is wrong
> - manual is wrong

A fourth possibility: behaviour of a bare "^" is undefined.

Lua is replete with silentlly undefined and implementation-dependent
behaviour. It is impossible for manual writers to anticipate to what
lengths fractious but resourceful users might go.