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Re^3: Missing Bracketby BrowserUk (Patriarch) |
on Nov 30, 2005 at 01:09 UTC ( [id://512813]=note: print w/replies, xml ) | Need Help?? |
(Almost?) every non-alpha printable character is used as a global variable for something. In this case, $( is defined in perlvar as $REAL_GROUP_ID (Whatever that is:). But every global scalar, is just one part of a 'glob', which also has 6 (or 7?) 'slots' (*). You are familiar with $_ and @_, well there is also a %_ which doesn't see much use outside golf. So it is with all other globals, the are $|, @| & %|, only the first of which has a predefined use, but the others exist and are usable as with any other general purpose global. (*). I forget exactly what they all are, but broquaint did a very good tutorial on them somewhere. See that for the full SP. Try supersearch for tutorial glob and author broquaint. Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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