Re^2: getting ancestors of element

Thanks for reply. Maybe you can tell me what arguments are implied in sub r($$$;$) Not familiar with that string of special variables. Thanks

Comment on Re^2: getting ancestors of element

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Re^3: getting ancestors of element by Athanasius (Archbishop) on Aug 31, 2012 at 15:25 UTC
See perlsub. `$` means a scalar value, and A semicolon (`;`) separates mandatory arguments from optional arguments. So, `sub r($$$;$)` means: `r` is a subroutine prototyped to take at least 3, and at most 4, scalar arguments. Hope that helps, Athanasius <°(((>< contra mundum	[reply]